/* roulang page: index */
:root {
            --primary: #1E1E1E;
            --accent: #FF5500;
            --accent-hover: #E04A00;
            --accent-light: rgba(255, 85, 0, 0.08);
            --bg: #F7F8FA;
            --card-bg: #FFFFFF;
            --dark-bg: #2A2A2A;
            --text: #1A1A1A;
            --text-secondary: #555555;
            --text-inverse: #FFFFFF;
            --border: #E0E2E6;
            --border-light: #EEF0F3;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --nav-height: 76px;
            --font-hero: 52px;
            --font-h1: 40px;
            --font-h2: 30px;
            --font-h3: 22px;
            --font-h4: 18px;
            --font-body: 16px;
            --font-sm: 14px;
            --font-xs: 12px;
            --line-height: 1.7;
            --letter-spacing-tight: -0.02em;
            --letter-spacing-normal: -0.005em;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text);
            background-color: var(--bg);
            letter-spacing: var(--letter-spacing-normal);
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        ul,
        ol {
            list-style: none;
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border);
            border-radius: var(--radius-xs);
            padding: 12px 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--card-bg);
            color: var(--text);
            width: 100%;
        }
        input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== NAVIGATION - 杂志刊头风格 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .nav-brand {
            font-size: 30px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-brand .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .nav-divider {
            width: 1px;
            height: 28px;
            background: var(--border);
            margin: 0 20px;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 15px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--accent);
            background: var(--accent-light);
        }
        .nav-links a.active {
            color: var(--accent);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 15px;
            right: 15px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px 3px 0 0;
        }
        .nav-cta {
            display: inline-block;
            padding: 10px 20px;
            font-size: var(--font-sm);
            font-weight: 700;
            background: var(--accent);
            color: #fff !important;
            border-radius: var(--radius-sm);
            margin-left: 10px;
            white-space: nowrap;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--card-bg);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            gap: 4px;
            overflow-y: auto;
        }
        .mobile-menu.active {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 18px;
            font-size: var(--font-body);
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--accent-light);
            color: var(--accent);
        }
        .mobile-menu .mobile-cta {
            margin-top: 12px;
            text-align: center;
            background: var(--accent);
            color: #fff !important;
            font-weight: 700;
            border-radius: var(--radius-sm);
            padding: 14px 18px;
        }

        /* ========== HERO - 拼团转化风格 ========== */
        .hero-section {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(30, 30, 30, 0.82) 0%, rgba(20, 20, 20, 0.88) 60%, rgba(10, 10, 10, 0.92) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
            pointer-events: none;
            z-index: 2;
        }
        .hero-inner {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 40px 24px;
            width: 100%;
        }
        .hero-text {
            color: #fff;
        }
        .hero-label {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: var(--font-xs);
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 20px;
            text-transform: uppercase;
        }
        .hero-title {
            font-size: var(--font-hero);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 20px;
            color: #fff;
        }
        .hero-title .highlight {
            color: var(--accent);
        }
        .hero-desc {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero-group-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            margin-bottom: 28px;
            max-width: 440px;
        }
        .group-progress-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
            color: #fff;
            font-size: var(--font-sm);
            font-weight: 600;
        }
        .group-progress-bar {
            width: 100%;
            height: 8px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .group-progress-fill {
            height: 100%;
            background: var(--accent);
            border-radius: 4px;
            width: 60%;
            transition: width var(--transition-slow);
            position: relative;
        }
        .group-progress-fill::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 14px;
            height: 14px;
            background: #fff;
            border-radius: 50%;
            border: 3px solid var(--accent);
        }
        .group-meta {
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            gap: 16px;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 30px;
            font-size: var(--font-body);
            font-weight: 700;
            border-radius: var(--radius-sm);
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            text-align: center;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 85, 0, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 18px;
            border-radius: var(--radius-md);
        }
        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .hero-stat-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            width: 100%;
            max-width: 420px;
        }
        .hero-stat-card {
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            color: #fff;
            transition: transform var(--transition-fast);
        }
        .hero-stat-card:hover {
            transform: translateY(-3px);
        }
        .hero-stat-num {
            font-size: 36px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 6px;
        }
        .hero-stat-label {
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }
        .scroll-hint {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 4;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.6);
            font-size: var(--font-xs);
            animation: bounce 2s infinite;
        }
        .scroll-hint-arrow {
            width: 20px;
            height: 20px;
            border-right: 2px solid rgba(255, 255, 255, 0.6);
            border-bottom: 2px solid rgba(255, 255, 255, 0.6);
            transform: rotate(45deg);
        }
        @keyframes bounce {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(10px);
            }
        }

        /* ========== SECTION 通用 ========== */
        section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }
        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-desc {
            font-size: var(--font-body);
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== KPI / 关于 ========== */
        .kpi-section {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
        }
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .kpi-item {
            padding: 28px 16px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            background: var(--bg);
        }
        .kpi-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .kpi-num {
            font-size: 42px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
        }
        .kpi-label {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== 功能亮点 ========== */
        .features-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 20px;
        }
        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: scale(1.02);
            border-color: transparent;
        }
        .feature-card.feature-large {
            grid-row: span 2;
        }
        .feature-card.feature-large .feature-icon {
            width: 56px;
            height: 56px;
            font-size: 28px;
        }
        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
            color: var(--accent);
        }
        .feature-card h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }
        .feature-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .feature-card .feature-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-top: 8px;
        }
        .feature-card .feature-img img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .feature-card:hover .feature-img img {
            transform: scale(1.05);
        }

        /* ========== 使用场景 ========== */
        .scenario-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            margin-bottom: 60px;
        }
        .scenario-block:last-child {
            margin-bottom: 0;
        }
        .scenario-block.reverse {
            direction: rtl;
        }
        .scenario-block.reverse .scenario-text {
            direction: ltr;
        }
        .scenario-block.reverse .scenario-img-wrap {
            direction: ltr;
        }
        .scenario-text h3 {
            font-size: var(--font-h3);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .scenario-text p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .scenario-text .scenario-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: var(--font-xs);
            font-weight: 600;
        }
        .scenario-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .scenario-img-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .scenario-img-wrap:hover img {
            transform: scale(1.04);
        }

        /* ========== 成功案例 ========== */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .case-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
        }
        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .case-card-img {
            height: 160px;
            overflow: hidden;
        }
        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .case-card:hover .case-card-img img {
            transform: scale(1.06);
        }
        .case-card-body {
            padding: 18px 16px;
        }
        .case-card-body h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .case-card-body .case-stat {
            font-size: 28px;
            font-weight: 900;
            color: var(--accent);
            margin-bottom: 4px;
        }
        .case-card-body p {
            font-size: var(--font-xs);
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ========== 服务范围 ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .service-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            text-align: center;
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .service-card .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--accent-light);
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--accent);
        }
        .service-card h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .service-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== 价格 ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        .pricing-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            text-align: center;
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .pricing-card.featured {
            border: 2px solid var(--accent);
            box-shadow: var(--shadow-md);
            transform: scale(1.03);
            z-index: 2;
        }
        .pricing-card.featured:hover {
            transform: scale(1.05);
        }
        .pricing-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            padding: 5px 18px;
            border-radius: 20px;
            font-size: var(--font-xs);
            font-weight: 700;
            white-space: nowrap;
        }
        .pricing-name {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .pricing-price {
            font-size: 44px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 4px;
        }
        .pricing-price span {
            font-size: var(--font-sm);
            font-weight: 500;
            color: var(--text-secondary);
        }
        .pricing-desc {
            font-size: var(--font-xs);
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .pricing-features {
            text-align: left;
            flex: 1;
            margin-bottom: 20px;
        }
        .pricing-features li {
            padding: 7px 0;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-features li::before {
            content: '✓';
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
        }
        .pricing-card .btn {
            width: 100%;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro-section {
            background: var(--dark-bg);
            color: #fff;
            padding: 80px 0;
        }
        .brand-intro-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .brand-intro-text h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: var(--letter-spacing-tight);
            color: #fff;
        }
        .brand-intro-text p {
            font-size: var(--font-body);
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 14px;
        }
        .brand-intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }
        .brand-intro-img img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }

        /* ========== 新闻中心 ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-left: 3px solid var(--border);
            padding-left: 0;
        }
        .news-item {
            display: grid;
            grid-template-columns: 160px 1fr;
            gap: 20px;
            padding: 20px 0 20px 28px;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }
        .news-item::before {
            content: '';
            position: absolute;
            left: -6px;
            top: 28px;
            width: 9px;
            height: 9px;
            background: var(--border);
            border-radius: 50%;
            transition: background var(--transition-fast);
        }
        .news-item:hover::before {
            background: var(--accent);
        }
        .news-item:hover {
            background: var(--card-bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }
        .news-item-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            height: 100px;
        }
        .news-item-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .news-item:hover .news-item-img img {
            transform: scale(1.05);
        }
        .news-item-content h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
            line-height: 1.3;
        }
        .news-item-content .news-date {
            font-size: var(--font-xs);
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 6px;
        }
        .news-item-content p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .news-read-more {
            font-size: var(--font-xs);
            font-weight: 700;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }
        .news-read-more:hover {
            gap: 8px;
        }

        /* ========== 媒体精选 横向滚动 ========== */
        .media-scroll-wrapper {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
            padding-bottom: 10px;
        }
        .media-scroll-wrapper::-webkit-scrollbar {
            height: 6px;
        }
        .media-scroll-wrapper::-webkit-scrollbar-track {
            background: transparent;
        }
        .media-scroll-wrapper::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .media-scroll-inner {
            display: flex;
            gap: 20px;
            min-width: max-content;
            padding: 0 24px;
        }
        .media-card {
            flex: 0 0 280px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .media-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .media-card-img {
            height: 170px;
            overflow: hidden;
        }
        .media-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .media-card:hover .media-card-img img {
            transform: scale(1.05);
        }
        .media-card-body {
            padding: 16px;
        }
        .media-card-body .media-type {
            font-size: var(--font-xs);
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 4px;
            text-transform: uppercase;
        }
        .media-card-body h3 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 4px;
        }
        .media-card-body p {
            font-size: var(--font-xs);
            color: var(--text-secondary);
            line-height: 1.4;
        }

        /* ========== 热门专题 ========== */
        .topics-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .topic-tag {
            display: inline-block;
            padding: 10px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 25px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .topic-tag:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .topic-tag.hot {
            background: var(--accent-light);
            border-color: var(--accent);
            color: var(--accent);
            font-weight: 700;
        }
        .topic-tag.hot:hover {
            background: var(--accent);
            color: #fff;
        }

        /* ========== 深度内容 ========== */
        .deep-content-section {
            background: var(--card-bg);
            padding: 80px 0;
        }
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .deep-content-block {
            padding: 32px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
        }
        .deep-content-block h3 {
            font-size: var(--font-h3);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .deep-content-block p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .deep-content-block ul {
            padding-left: 0;
            margin-top: 12px;
        }
        .deep-content-block ul li {
            padding: 6px 0;
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.6;
            padding-left: 20px;
            position: relative;
        }
        .deep-content-block ul li::before {
            content: '•';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: 700;
        }

        /* ========== App下载 ========== */
        .app-section {
            background: linear-gradient(135deg, var(--primary) 0%, #111 100%);
            color: #fff;
            padding: 80px 0;
        }
        .app-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .app-text h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: var(--letter-spacing-tight);
        }
        .app-text p {
            font-size: var(--font-body);
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .app-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .app-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 24px;
            background: #fff;
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: var(--font-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .app-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        .app-visual {
            display: flex;
            justify-content: center;
        }
        .app-visual img {
            border-radius: var(--radius-lg);
            max-width: 300px;
            box-shadow: var(--shadow-xl);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: color var(--transition-fast);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 2px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .faq-item.active .faq-icon {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 0;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 0 18px 0;
        }
        .faq-answer p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--accent);
            color: #fff;
            text-align: center;
            padding: 70px 0;
        }
        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: var(--letter-spacing-tight);
        }
        .cta-section p {
            font-size: var(--font-body);
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--accent);
            font-weight: 700;
            padding: 16px 36px;
            font-size: 18px;
            border-radius: var(--radius-md);
        }
        .cta-section .btn:hover {
            background: #f5f5f5;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E1E1E;
            color: #CCC;
            padding: 48px 0 28px;
            font-size: var(--font-sm);
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 24px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: var(--letter-spacing-tight);
        }
        .footer-brand p {
            color: #999;
            line-height: 1.6;
            font-size: var(--font-xs);
        }
        .footer-links h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-links a {
            display: block;
            color: #999;
            padding: 4px 0;
            font-size: var(--font-xs);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 20px 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: var(--font-xs);
            color: #888;
        }
        .footer-bottom a {
            color: #999;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-bottom .footer-sep {
            color: rgba(255, 255, 255, 0.2);
            margin: 0 8px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --font-hero: 40px;
                --font-h2: 26px;
                --font-h3: 20px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 30px;
                text-align: center;
            }
            .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-group-card {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-stat-cards {
                max-width: 100%;
                grid-template-columns: repeat(4, 1fr);
            }
            .hero-visual {
                order: -1;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .feature-card.feature-large {
                grid-row: span 1;
                grid-column: span 2;
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scenario-block.reverse {
                direction: ltr;
            }
            .scenario-img-wrap img {
                height: 240px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .pricing-card.featured {
                transform: scale(1);
            }
            .pricing-card.featured:hover {
                transform: scale(1.02);
            }
            .brand-intro-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
            }
            .app-inner {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .app-buttons {
                justify-content: center;
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .nav-divider {
                display: none;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-hero: 32px;
                --font-h2: 24px;
                --font-h3: 19px;
                --font-h4: 17px;
                --nav-height: 62px;
            }
            section {
                padding: 50px 0;
            }
            .container {
                padding: 0 16px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-divider {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero-section {
                min-height: 80vh;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                padding: 30px 16px;
                text-align: center;
            }
            .hero-title {
                font-size: var(--font-hero);
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-stat-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-stat-num {
                font-size: 26px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-buttons .btn {
                width: 100%;
                max-width: 300px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card.feature-large {
                grid-column: span 1;
            }
            .cases-grid {
                grid-template-columns: 1fr 1fr;
            }
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .kpi-num {
                font-size: 30px;
            }
            .scenario-block {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 100%;
            }
            .pricing-card.featured {
                transform: none;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 10px;
                padding-left: 20px;
            }
            .news-item-img {
                height: 140px;
            }
            .media-card {
                flex: 0 0 230px;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
            }
            .app-inner {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .brand-intro-inner {
                grid-template-columns: 1fr;
            }
            .site-header .nav-brand {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --font-hero: 26px;
                --font-h2: 21px;
                --font-h3: 18px;
            }
            .hero-stat-cards {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hero-stat-card {
                padding: 14px 10px;
            }
            .hero-stat-num {
                font-size: 22px;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .kpi-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hero-group-card {
                padding: 14px 16px;
            }
            .btn {
                padding: 12px 20px;
                font-size: var(--font-sm);
            }
            .btn-lg {
                padding: 14px 24px;
                font-size: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1E1E1E;
            --accent: #FF5500;
            --accent-hover: #E04A00;
            --accent-light: rgba(255, 85, 0, 0.08);
            --accent-light2: rgba(255, 85, 0, 0.12);
            --bg: #F7F8FA;
            --card-bg: #FFFFFF;
            --dark-bg: #2A2A2A;
            --text: #1A1A1A;
            --text-secondary: #555555;
            --text-inverse: #FFFFFF;
            --border: #E0E2E6;
            --border-light: #EEF0F3;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --nav-height: 76px;
            --font-hero: 52px;
            --font-h1: 40px;
            --font-h2: 30px;
            --font-h3: 22px;
            --font-h4: 18px;
            --font-body: 16px;
            --font-sm: 14px;
            --font-xs: 12px;
            --line-height: 1.7;
            --letter-spacing-tight: -0.02em;
            --letter-spacing-normal: -0.005em;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text);
            background-color: var(--bg);
            letter-spacing: var(--letter-spacing-normal);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border);
            border-radius: var(--radius-xs);
            padding: 12px 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--card-bg);
            color: var(--text);
            width: 100%;
        }

        input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== NAVIGATION - 杂志刊头风格 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-brand {
            font-size: 30px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-brand .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .nav-divider {
            width: 1px;
            height: 28px;
            background: var(--border);
            margin: 0 20px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 15px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .nav-links a:hover {
            color: var(--accent);
            background: var(--accent-light);
        }

        .nav-links a.active {
            color: var(--accent);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 15px;
            right: 15px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px 3px 0 0;
        }

        .nav-links .nav-cta {
            background: var(--accent);
            color: #fff !important;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            margin-left: 8px;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }

        .nav-links .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }

        .nav-links .nav-cta::after {
            display: none;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 8px;
            z-index: 1001;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 40%, #1e1e1e 100%);
            overflow: hidden;
            padding: 60px 0;
        }

        .hero-bg-image {
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.3) 60%, rgba(0, 0, 0, 0) 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.3) 60%, rgba(0, 0, 0, 0) 100%);
        }

        .hero-overlay-accent {
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 85, 0, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 85, 0, 0.15);
            color: #FF8855;
            font-size: var(--font-sm);
            font-weight: 700;
            padding: 8px 16px;
            border-radius: 50px;
            letter-spacing: 0.03em;
            width: fit-content;
            border: 1px solid rgba(255, 85, 0, 0.25);
        }

        .hero-badge .live-dot {
            width: 8px;
            height: 8px;
            background: #ff4444;
            border-radius: 50%;
            animation: pulse-dot 1.6s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 68, 68, 0.7);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(255, 68, 68, 0);
            }
        }

        .hero-title {
            font-size: var(--font-hero);
            font-weight: 900;
            color: var(--text-inverse);
            line-height: 1.2;
            letter-spacing: var(--letter-spacing-tight);
        }

        .hero-title .accent-text {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: var(--font-h4);
            color: #b0b0b0;
            line-height: 1.6;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: var(--font-body);
            padding: 14px 30px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 85, 0, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-inverse);
            font-weight: 600;
            font-size: var(--font-body);
            padding: 14px 30px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(255, 85, 0, 0.06);
        }

        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .data-panel {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .data-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: var(--font-sm);
            color: #ccc;
            font-weight: 600;
        }

        .data-panel-header .live-indicator {
            display: flex;
            align-items: center;
            gap: 6px;
            color: #ff5555;
            font-weight: 700;
            font-size: var(--font-xs);
        }

        .data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-xs);
            transition: background var(--transition-fast);
            cursor: default;
        }

        .data-row:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .data-row .match-teams {
            font-weight: 700;
            color: #fff;
            font-size: var(--font-sm);
            flex: 1;
        }

        .data-row .match-score {
            font-weight: 900;
            color: var(--accent);
            font-size: var(--font-h4);
            min-width: 50px;
            text-align: center;
        }

        .data-row .match-viewers {
            font-size: var(--font-xs);
            color: #999;
            min-width: 70px;
            text-align: right;
        }

        .data-row.live-now {
            border-left: 3px solid #ff4444;
            animation: live-glow 2s infinite;
        }

        @keyframes live-glow {
            0%,
            100% {
                border-left-color: #ff4444;
            }
            50% {
                border-left-color: #ff8888;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 80px 0;
        }

        .section-dark {
            background: var(--dark-bg);
            color: var(--text-inverse);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            color: inherit;
            margin-bottom: 12px;
            letter-spacing: var(--letter-spacing-tight);
        }

        .section-header p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-dark .section-header p {
            color: #b0b0b0;
        }

        .section-dark .section-header h2 {
            color: #fff;
        }

        .accent-underline {
            display: inline-block;
            width: 50px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin: 8px auto 0;
        }

        /* ========== FEATURES GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-normal);
            border-radius: 0 0 var(--radius-xs) var(--radius-xs);
        }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .feature-card h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
        }

        .feature-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== SPORTS COVERAGE ========== */
        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .coverage-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 280px;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
        }

        .coverage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
        }

        .coverage-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .coverage-card:hover img {
            transform: scale(1.06);
        }

        .coverage-card-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 20px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
            color: #fff;
        }

        .coverage-card-overlay h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            margin-bottom: 4px;
        }

        .coverage-card-overlay span {
            font-size: var(--font-xs);
            color: #ddd;
        }

        /* ========== DATA SHOWCASE ========== */
        .data-showcase {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .data-stat {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 30px 20px;
            transition: all var(--transition-normal);
        }

        .data-stat:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            transform: translateY(-3px);
        }

        .data-stat .stat-number {
            font-size: 42px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
        }

        .data-stat .stat-label {
            font-size: var(--font-sm);
            color: #bbb;
            font-weight: 500;
        }

        /* ========== STEPS / PROCESS ========== */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--accent);
            color: #fff;
            font-weight: 900;
            font-size: 20px;
            border-radius: 50%;
            margin-bottom: 16px;
        }

        .step-card h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .step-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== MATCH CARDS ========== */
        .match-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .match-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .match-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .match-card-image {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .match-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .match-card:hover .match-card-image img {
            transform: scale(1.05);
        }

        .match-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: #ff4444;
            color: #fff;
            font-size: var(--font-xs);
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 50px;
            letter-spacing: 0.03em;
        }

        .match-card-body {
            padding: 20px;
        }

        .match-card-body h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--primary);
        }

        .match-card-body .match-info {
            font-size: var(--font-xs);
            color: var(--text-secondary);
            margin-bottom: 10px;
        }

        .match-card-body .match-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: var(--font-xs);
            color: var(--accent);
            font-weight: 600;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .testimonial-card .quote-icon {
            font-size: 36px;
            color: var(--accent);
            opacity: 0.5;
            line-height: 1;
            margin-bottom: 10px;
        }

        .testimonial-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--accent);
            font-size: var(--font-sm);
            flex-shrink: 0;
        }

        .testimonial-author strong {
            font-size: var(--font-sm);
            color: var(--primary);
        }

        .testimonial-author span {
            font-size: var(--font-xs);
            color: var(--text-secondary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: var(--font-body);
            color: var(--primary);
            background: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: var(--accent);
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E1E1E 0%, #2a2a2a 100%);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(255, 85, 0, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-content p {
            font-size: var(--font-body);
            color: #bbb;
            margin-bottom: 28px;
            line-height: 1.6;
        }

        .cta-content .btn-primary {
            font-size: 18px;
            padding: 16px 40px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E1E1E;
            color: #CCC;
            padding: 50px 0 0;
        }

        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            color: #aaa;
        }

        .footer-links h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-links a {
            display: block;
            font-size: var(--font-sm);
            color: #aaa;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: var(--font-xs);
            color: #888;
            gap: 10px;
        }

        .footer-bottom span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .footer-sep {
            color: #555;
        }

        .footer-bottom a {
            color: #aaa;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --font-hero: 40px;
                --font-h2: 26px;
                --font-h3: 20px;
            }
            .hero-container {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-right {
                max-width: 500px;
            }
            .hero-bg-image {
                width: 100%;
                opacity: 0.2;
                mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.15) 100%);
                -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.15) 100%);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-showcase {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .match-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-divider {
                display: none;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-brand {
                font-size: 24px;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-hero: 32px;
                --font-h2: 24px;
                --font-h3: 19px;
                --font-h4: 17px;
                --nav-height: 62px;
            }
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--card-bg);
                flex-direction: column;
                padding: 80px 24px 30px;
                gap: 4px;
                box-shadow: var(--shadow-xl);
                transition: right var(--transition-normal);
                z-index: 999;
                align-items: stretch;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: var(--font-body);
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: var(--accent-light);
            }
            .nav-links .nav-cta {
                margin-left: 0;
                text-align: center;
                margin-top: 8px;
            }
            .nav-divider {
                display: none;
            }
            .nav-brand {
                font-size: 22px;
            }
            .hero-section {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-title {
                font-size: var(--font-hero);
            }
            .hero-subtitle {
                font-size: var(--font-body);
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .coverage-grid {
                grid-template-columns: 1fr;
            }
            .coverage-card {
                height: 220px;
            }
            .data-showcase {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-container {
                grid-template-columns: 1fr 1fr;
            }
            .match-cards-grid {
                grid-template-columns: 1fr;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 50px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .data-panel {
                padding: 16px 14px;
            }
            .data-row {
                padding: 8px 10px;
            }
            .data-row .match-teams {
                font-size: var(--font-xs);
            }
            .data-row .match-score {
                font-size: var(--font-body);
                min-width: 36px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --font-hero: 26px;
                --font-h2: 21px;
                --font-h3: 18px;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .data-showcase {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-stat .stat-number {
                font-size: 32px;
            }
            .steps-container {
                grid-template-columns: 1fr;
            }
            .hero-bg-image {
                opacity: 0.12;
            }
            .section {
                padding: 38px 0;
            }
            .feature-card {
                padding: 22px 18px;
            }
            .cta-content h2 {
                font-size: 22px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1E1E1E;
            --accent: #FF5500;
            --accent-hover: #E04A00;
            --accent-light: rgba(255, 85, 0, 0.08);
            --accent-light2: rgba(255, 85, 0, 0.15);
            --bg: #F7F8FA;
            --card-bg: #FFFFFF;
            --dark-bg: #2A2A2A;
            --text: #1A1A1A;
            --text-secondary: #555555;
            --text-inverse: #FFFFFF;
            --border: #E0E2E6;
            --border-light: #EEF0F3;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --nav-height: 76px;
            --font-hero: 52px;
            --font-h1: 40px;
            --font-h2: 30px;
            --font-h3: 22px;
            --font-h4: 18px;
            --font-body: 16px;
            --font-sm: 14px;
            --font-xs: 12px;
            --line-height: 1.7;
            --letter-spacing-tight: -0.02em;
            --letter-spacing-normal: -0.005em;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text);
            background-color: var(--bg);
            letter-spacing: var(--letter-spacing-normal);
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border);
            border-radius: var(--radius-xs);
            padding: 12px 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--card-bg);
            color: var(--text);
            width: 100%;
        }

        input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== NAVIGATION - 杂志刊头风格 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-brand {
            font-size: 30px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-brand .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .nav-divider {
            width: 1px;
            height: 28px;
            background: var(--border);
            margin: 0 20px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .nav-links a:hover {
            color: var(--accent);
            background: var(--accent-light);
        }

        .nav-links a.active {
            color: var(--accent);
            background: var(--accent-light);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px 3px 0 0;
        }

        .nav-links .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            margin-left: 8px;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }

        .nav-links .nav-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-links .nav-cta::after {
            display: none;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* ========== HERO - 无大图首屏 ========== */
        .category-hero {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            padding: 48px 0 40px;
        }

        .category-hero .container {
            display: flex;
            align-items: center;
            gap: 48px;
            min-height: 280px;
        }

        .hero-text {
            flex: 1;
            min-width: 0;
        }

        .hero-text .category-badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: var(--font-xs);
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .hero-text h1 {
            font-size: var(--font-h1);
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .hero-text .hero-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 560px;
        }

        .hero-icons {
            flex: 0 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            min-width: 300px;
        }

        .hero-icon-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }

        .hero-icon-card:hover {
            background: var(--card-bg);
            border-color: var(--border);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .hero-icon-card .icon-circle {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 22px;
            color: var(--accent);
        }

        .hero-icon-card span {
            display: block;
            font-size: var(--font-xs);
            font-weight: 600;
            color: var(--text-secondary);
            line-height: 1.3;
        }

        .hero-status-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0 0;
            margin-top: 20px;
            border-top: 1px solid var(--border-light);
            flex-wrap: wrap;
        }

        .status-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            font-weight: 500;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22C55E;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        .status-dot.orange {
            background: var(--accent);
            animation-delay: 0.5s;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .status-count {
            font-weight: 700;
            color: var(--primary);
            font-size: 17px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 56px 0;
        }

        .section-alt {
            background: var(--card-bg);
        }

        .section-dark {
            background: var(--dark-bg);
            color: var(--text-inverse);
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 900;
            color: inherit;
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-title.light {
            color: var(--text-inverse);
        }

        .section-desc {
            font-size: var(--font-body);
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .section-desc.light {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== TAG CLOUD ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: flex-start;
        }

        .tag-cloud .tag {
            display: inline-block;
            padding: 10px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .tag-cloud .tag:hover,
        .tag-cloud .tag.active {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        /* ========== FEATURED ARTICLE ========== */
        .featured-article {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: box-shadow var(--transition-normal);
        }

        .featured-article:hover {
            box-shadow: var(--shadow-lg);
        }

        .featured-article .fa-image-wrap {
            position: relative;
            overflow: hidden;
            min-height: 320px;
            background: var(--bg);
        }

        .featured-article .fa-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .featured-article:hover .fa-image-wrap img {
            transform: scale(1.05);
        }

        .featured-article .fa-image-wrap .fa-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: var(--font-xs);
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .featured-article .fa-content {
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-article .fa-content .fa-date {
            font-size: var(--font-xs);
            color: var(--text-secondary);
            margin-bottom: 8px;
            font-weight: 500;
        }

        .featured-article .fa-content h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .featured-article .fa-content p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: var(--font-sm);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-align: center;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            border: 2px solid var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
        }

        .btn-outline:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== NEWS CARDS ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .news-card .nc-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg);
        }

        .news-card .nc-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .news-card:hover .nc-image img {
            transform: scale(1.06);
        }

        .news-card .nc-image .nc-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .news-card .nc-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .nc-body .nc-date {
            font-size: var(--font-xs);
            color: var(--text-secondary);
            margin-bottom: 6px;
            font-weight: 500;
        }

        .news-card .nc-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
            flex: 1;
        }

        .news-card .nc-body p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .news-card .nc-body .read-more {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
            margin-top: auto;
        }

        .news-card .nc-body .read-more:hover {
            gap: 8px;
        }

        /* ========== DATA INSIGHT BLOCK ========== */
        .data-insight-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }

        .data-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--border);
            transform: translateY(-3px);
        }

        .data-card .data-number {
            font-size: 40px;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: var(--letter-spacing-tight);
            line-height: 1;
        }

        .data-card .data-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-left: 2px;
        }

        .data-card .data-label {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        /* ========== EXPERT COLUMN ========== */
        .expert-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .expert-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            text-align: center;
            border: 1px solid transparent;
        }

        .expert-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--border);
            transform: translateY(-3px);
        }

        .expert-card .expert-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--bg);
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--accent);
            border: 3px solid var(--accent-light);
            overflow: hidden;
        }

        .expert-card .expert-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .expert-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .expert-card .expert-role {
            font-size: var(--font-xs);
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 10px;
        }

        .expert-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== SUBSCRIBE CTA ========== */
        .subscribe-block {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .subscribe-block .sub-text {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-block .sub-text h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .subscribe-block .sub-text p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .subscribe-block .sub-form {
            flex: 1;
            min-width: 280px;
            display: flex;
            gap: 10px;
        }

        .subscribe-block .sub-form input {
            flex: 1;
            min-width: 180px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--border);
            padding: 14px 18px;
            font-size: var(--font-body);
        }

        .subscribe-block .sub-form input:focus {
            border-color: var(--accent);
        }

        .subscribe-block .sub-form .btn {
            flex-shrink: 0;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: var(--font-body);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }

        .faq-item .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: none;
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            cursor: pointer;
            text-align: left;
            line-height: 1.4;
            gap: 16px;
            transition: color var(--transition-fast);
        }

        .faq-item .faq-question:hover {
            color: var(--accent);
        }

        .faq-item .faq-icon {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--accent-light);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-item .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 60px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 900;
            margin-bottom: 12px;
            letter-spacing: var(--letter-spacing-tight);
        }

        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-section .btn {
            font-size: 17px;
            padding: 16px 36px;
            border-radius: var(--radius-sm);
        }

        .cta-section .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        .cta-section .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            box-shadow: 0 8px 28px rgba(255, 85, 0, 0.4);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E1E1E;
            color: #CCC;
            padding: 48px 0 24px;
        }

        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand h3 {
            font-size: 24px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: var(--letter-spacing-tight);
        }

        .footer-brand p {
            font-size: var(--font-sm);
            color: #AAA;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-links h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-links a {
            display: block;
            font-size: var(--font-sm);
            color: #AAA;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 20px 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: var(--font-xs);
            color: #888;
        }

        .footer-bottom a {
            color: #AAA;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-sep {
            color: rgba(255, 255, 255, 0.2);
            margin: 0 8px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --font-h1: 34px;
                --font-h2: 26px;
                --font-h3: 20px;
                --nav-height: 66px;
            }
            .nav-links a {
                padding: 7px 10px;
                font-size: 13px;
            }
            .nav-divider {
                margin: 0 10px;
            }
            .nav-brand {
                font-size: 24px;
            }
            .category-hero .container {
                flex-direction: column;
                gap: 32px;
                text-align: center;
            }
            .hero-icons {
                grid-template-columns: repeat(3, 1fr);
                min-width: auto;
                width: 100%;
                max-width: 400px;
            }
            .hero-text .hero-subtitle {
                max-width: 100%;
                margin: 0 auto;
            }
            .hero-status-bar {
                justify-content: center;
            }
            .featured-article {
                grid-template-columns: 1fr;
            }
            .featured-article .fa-image-wrap {
                aspect-ratio: 16 / 9;
                min-height: auto;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-insight-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .expert-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .subscribe-block {
                flex-direction: column;
                text-align: center;
                padding: 32px 24px;
            }
            .subscribe-block .sub-form {
                flex-direction: column;
                width: 100%;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-h1: 28px;
                --font-h2: 23px;
                --font-h3: 19px;
                --nav-height: 60px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                padding: 16px 24px;
                gap: 2px;
                border-bottom: 2px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .nav-links .nav-cta {
                margin-left: 0;
                text-align: center;
                margin-top: 6px;
            }
            .nav-divider {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .hero-icons {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .hero-icon-card {
                padding: 16px 12px;
            }
            .hero-icon-card .icon-circle {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }
            .hero-status-bar {
                gap: 10px;
                font-size: 12px;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-insight-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .data-card {
                padding: 20px 16px;
            }
            .data-card .data-number {
                font-size: 30px;
            }
            .expert-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .featured-article .fa-content {
                padding: 20px;
            }
            .featured-article .fa-content h3 {
                font-size: 20px;
            }
            .subscribe-block {
                padding: 24px 16px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .tag-cloud .tag {
                padding: 8px 14px;
                font-size: 12px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --font-h1: 24px;
                --font-h2: 20px;
                --font-h3: 17px;
            }
            .container {
                padding: 0 16px;
            }
            .hero-icons {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .hero-icon-card {
                padding: 12px 8px;
            }
            .hero-icon-card .icon-circle {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .hero-icon-card span {
                font-size: 10px;
            }
            .data-insight-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .data-card .data-number {
                font-size: 26px;
            }
            .footer-inner {
                padding: 0 16px;
            }
            .footer-bottom {
                padding: 16px 16px 0;
            }
            .category-hero .container {
                gap: 20px;
            }
            .hero-text h1 {
                font-size: 24px;
            }
            .hero-text .hero-subtitle {
                font-size: 15px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1E1E1E;
            --accent: #FF5500;
            --accent-hover: #E04A00;
            --accent-light: rgba(255, 85, 0, 0.08);
            --accent-soft: rgba(255, 85, 0, 0.04);
            --bg: #F7F8FA;
            --card-bg: #FFFFFF;
            --dark-bg: #2A2A2A;
            --text: #1A1A1A;
            --text-secondary: #555555;
            --text-inverse: #FFFFFF;
            --text-muted: #888888;
            --border: #E0E2E6;
            --border-light: #EEF0F3;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --nav-height: 76px;
            --font-hero: 52px;
            --font-h1: 40px;
            --font-h2: 30px;
            --font-h3: 22px;
            --font-h4: 18px;
            --font-body: 16px;
            --font-sm: 14px;
            --font-xs: 12px;
            --line-height: 1.7;
            --letter-spacing-tight: -0.02em;
            --letter-spacing-normal: -0.005em;
        }

        @media (max-width: 1024px) {
            :root {
                --font-hero: 40px;
                --font-h2: 26px;
                --font-h3: 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-hero: 32px;
                --font-h2: 24px;
                --font-h3: 19px;
                --font-h4: 17px;
                --nav-height: 62px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --font-hero: 26px;
                --font-h2: 21px;
                --font-h3: 18px;
            }
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text);
            background-color: var(--bg);
            letter-spacing: var(--letter-spacing-normal);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border);
            border-radius: var(--radius-xs);
            padding: 12px 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--card-bg);
            color: var(--text);
            width: 100%;
        }

        input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== NAVIGATION - 杂志刊头风格 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 16px;
        }

        .nav-brand {
            font-size: 30px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-brand .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .nav-divider {
            width: 1px;
            height: 28px;
            background: var(--border);
            margin: 0 8px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .nav-links a:hover {
            color: var(--accent);
            background: var(--accent-soft);
        }

        .nav-links a.active {
            color: var(--accent);
            background: var(--accent-light);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            background: var(--accent) !important;
            color: #fff !important;
            padding: 9px 18px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 700 !important;
            margin-left: 6px;
            transition: background var(--transition-fast) !important;
        }

        .nav-cta:hover {
            background: var(--accent-hover) !important;
            color: #fff !important;
        }

        .nav-cta::after {
            display: none !important;
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .hamburger-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
            margin: 5px 0;
            transition: all var(--transition-fast);
        }

        .hamburger-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }

        .hamburger-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }
            .nav-brand {
                font-size: 24px;
            }
            .nav-divider {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 2px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform var(--transition-normal), opacity var(--transition-normal);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .nav-cta {
                margin-left: 0;
                text-align: center;
                margin-top: 6px;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: var(--dark-bg);
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 30, 30, 0.88) 0%, rgba(30, 30, 30, 0.55) 50%, rgba(30, 30, 30, 0.78) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 24px;
            width: 100%;
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: var(--font-xs);
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 18px;
        }

        .page-banner h1 {
            font-size: var(--font-hero);
            font-weight: 900;
            color: #fff;
            letter-spacing: var(--letter-spacing-tight);
            line-height: 1.15;
            margin-bottom: 16px;
            max-width: 700px;
        }

        .page-banner .banner-subtitle {
            font-size: var(--font-h4);
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
            max-width: 560px;
            margin-bottom: 28px;
        }

        .page-banner .banner-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: var(--font-body);
            font-weight: 700;
            border-radius: var(--radius-sm);
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            border: 2px solid var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 85, 0, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-1px);
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--border);
        }

        .btn-outline-dark:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-light);
            transform: translateY(-1px);
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 340px;
            }
            .page-banner .banner-content {
                padding: 40px 16px;
            }
            .page-banner h1 {
                font-size: var(--font-hero);
            }
            .page-banner .banner-subtitle {
                font-size: var(--font-body);
            }
            .btn {
                padding: 11px 22px;
                font-size: var(--font-sm);
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }

        .section-dark {
            background: var(--dark-bg);
            color: var(--text-inverse);
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 900;
            color: inherit;
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 14px;
            line-height: 1.25;
        }

        .section-title-dark {
            color: #fff;
        }

        .section-desc {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
            margin-bottom: 0;
        }

        .section-desc-light {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header .section-desc {
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: var(--font-h2);
            }
        }

        /* ========== FEATURE CARDS ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 30px 26px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .feature-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 18px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .feature-card h3 {
            font-size: var(--font-h4);
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.3;
        }

        .feature-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }

        .feature-card .card-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            background: var(--bg);
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
        }

        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .feature-card {
                padding: 22px 18px;
            }
        }

        /* ========== SCENE BLOCKS ========== */
        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            margin-bottom: 60px;
        }

        .scene-block:last-child {
            margin-bottom: 0;
        }

        .scene-block.reverse {
            direction: rtl;
        }

        .scene-block.reverse .scene-text {
            direction: ltr;
        }

        .scene-block .scene-image {
            direction: ltr;
        }

        .scene-block .scene-image img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .scene-block .scene-text h3 {
            font-size: var(--font-h3);
            font-weight: 900;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .scene-block .scene-text p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .scene-block .scene-text .scene-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 10px;
        }

        .scene-stat {
            text-align: center;
        }

        .scene-stat .stat-number {
            font-size: 28px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
        }

        .scene-stat .stat-label {
            font-size: var(--font-xs);
            color: var(--text-secondary);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .scene-block {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 36px;
            }
            .scene-block.reverse {
                direction: ltr;
            }
            .scene-block .scene-image img {
                aspect-ratio: 16/9;
            }
        }

        /* ========== TOPIC CARDS ========== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .topic-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .topic-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .topic-card .topic-icon {
            font-size: 32px;
            margin-bottom: 10px;
        }

        .topic-card h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .topic-card .topic-count {
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        @media (max-width: 1024px) {
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .topics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .topic-card {
                padding: 16px 12px;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step .step-number {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-size: var(--font-h4);
            font-weight: 800;
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 25px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: var(--border);
            z-index: 1;
        }

        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px 16px;
            }
            .process-steps::before {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: var(--font-body);
            color: var(--text);
            user-select: none;
            gap: 12px;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--dark-bg);
            text-align: center;
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(255, 85, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 900;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: var(--letter-spacing-tight);
        }

        .cta-section p {
            font-size: var(--font-body);
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            font-size: var(--font-h4);
            padding: 15px 36px;
            border-radius: var(--radius-sm);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: var(--font-h2);
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E1E1E;
            color: #CCC;
            padding: 50px 0 0;
        }

        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: var(--letter-spacing-tight);
        }

        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            color: #AAA;
            max-width: 360px;
        }

        .footer-links h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-links a {
            display: block;
            font-size: var(--font-sm);
            color: #AAA;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 36px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 8px;
            font-size: var(--font-xs);
            color: #999;
        }

        .footer-bottom a {
            color: #AAA;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-sep {
            margin: 0 6px;
            color: #555;
        }

        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 0 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                padding: 16px;
                gap: 6px;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1E1E1E;
            --accent: #FF5500;
            --accent-hover: #E04A00;
            --accent-light: rgba(255, 85, 0, 0.08);
            --bg: #F7F8FA;
            --card-bg: #FFFFFF;
            --dark-bg: #2A2A2A;
            --text: #1A1A1A;
            --text-secondary: #555555;
            --text-inverse: #FFFFFF;
            --border: #E0E2E6;
            --border-light: #EEF0F3;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --nav-height: 76px;
            --font-hero: 52px;
            --font-h1: 40px;
            --font-h2: 30px;
            --font-h3: 22px;
            --font-h4: 18px;
            --font-body: 16px;
            --font-sm: 14px;
            --font-xs: 12px;
            --line-height: 1.7;
            --letter-spacing-tight: -0.02em;
            --letter-spacing-normal: -0.005em;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text);
            background-color: var(--bg);
            letter-spacing: var(--letter-spacing-normal);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border);
            border-radius: var(--radius-xs);
            padding: 12px 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--card-bg);
            color: var(--text);
            width: 100%;
        }

        input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .section-padding-sm {
            padding: 50px 0;
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 12px;
            padding: 4px 12px;
            background: var(--accent-light);
            border-radius: 20px;
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: var(--font-h4);
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.6;
            margin-bottom: 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== NAVIGATION - 杂志刊头风格 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 16px;
        }
        .nav-brand {
            font-size: 30px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-brand .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .nav-divider {
            width: 1px;
            height: 28px;
            background: var(--border);
            margin: 0 16px;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--accent);
            background: var(--accent-light);
        }
        .nav-links a.active {
            color: var(--accent);
            background: var(--accent-light);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }
        .nav-links .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            margin-left: 8px;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }
        .nav-links .nav-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
        }
        .nav-links .nav-cta.active {
            background: var(--accent-hover);
            color: #fff;
        }
        .nav-links .nav-cta.active::after {
            display: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 8px;
            z-index: 1001;
            flex-shrink: 0;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== HERO - 白皮书获客风格 ========== */
        .hero-esports {
            background: linear-gradient(160deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
            padding: 70px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-esports::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 85, 0, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-esports::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 85, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-esports .container {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 60px;
            align-items: center;
        }
        .hero-cover-wrap {
            perspective: 800px;
            display: flex;
            justify-content: center;
        }
        .hero-cover {
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl), 0 20px 60px rgba(0, 0, 0, 0.35);
            transform: rotateY(-4deg) rotateX(2deg);
            transition: transform var(--transition-slow);
            position: relative;
            overflow: hidden;
        }
        .hero-cover:hover {
            transform: rotateY(-1deg) rotateX(0deg);
        }
        .hero-cover img {
            width: 100%;
            aspect-ratio: 3/4;
            object-fit: cover;
            display: block;
        }
        .hero-cover-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            font-size: var(--font-xs);
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            z-index: 2;
        }
        .hero-content {
            color: #fff;
        }
        .hero-content .section-label {
            background: rgba(255, 255, 255, 0.12);
            color: #FF8855;
            margin-bottom: 16px;
        }
        .hero-content h1 {
            font-size: var(--font-hero);
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 16px;
            letter-spacing: var(--letter-spacing-tight);
            color: #fff;
        }
        .hero-content h1 .accent-text {
            color: var(--accent);
        }
        .hero-desc {
            font-size: var(--font-h4);
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            margin-bottom: 28px;
            max-width: 500px;
        }
        .hero-toc {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 24px;
            list-style: none;
        }
        .hero-toc li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 9px 0;
            color: rgba(255, 255, 255, 0.85);
            font-size: var(--font-sm);
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            letter-spacing: 0.01em;
        }
        .hero-toc li:last-child {
            border-bottom: none;
        }
        .hero-toc .toc-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: var(--font-xs);
            flex-shrink: 0;
        }
        .hero-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .hero-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: var(--font-sm);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .hero-form input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .hero-form input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.2);
            outline: none;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            cursor: pointer;
            border: none;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 85, 0, 0.35);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--accent);
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--accent);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--accent-light);
            border-color: var(--accent-hover);
            color: var(--accent-hover);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.5);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px) scale(1.01);
            box-shadow: var(--shadow-lg);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }
        .card-body {
            padding: 20px 24px 24px;
        }
        .card-title {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .card-text {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .card-tag {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 10px;
            border-radius: 20px;
            margin-bottom: 10px;
        }

        /* ========== GRID ========== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        /* ========== STATS ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
        }
        .stat-num {
            font-size: 42px;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: var(--letter-spacing-tight);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== DARK SECTION ========== */
        .dark-section {
            background: var(--dark-bg);
            color: var(--text-inverse);
        }
        .dark-section .section-title {
            color: #fff;
        }
        .dark-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .dark-section .card {
            background: #353535;
            color: #ddd;
        }
        .dark-section .card-title {
            color: #fff;
        }
        .dark-section .card-text {
            color: #bbb;
        }

        /* ========== FEATURE LIST ========== */
        .feature-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px 20px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }
        .feature-list li:hover {
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 20px;
            color: var(--accent);
        }
        .feature-info h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .feature-info p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .dark-section .feature-list li {
            background: #353535;
        }
        .dark-section .feature-info h4 {
            color: #fff;
        }
        .dark-section .feature-info p {
            color: #bbb;
        }

        /* ========== CONTENT BLOCK ========== */
        .content-block {
            max-width: 820px;
            margin: 0 auto;
        }
        .content-block h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--primary);
            margin: 32px 0 14px;
            line-height: 1.3;
        }
        .content-block h3:first-child {
            margin-top: 0;
        }
        .content-block p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .content-block .highlight-box {
            background: var(--accent-light);
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            font-weight: 500;
            color: var(--primary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition-normal);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: none;
            font-size: var(--font-body);
            font-weight: 700;
            color: var(--primary);
            text-align: left;
            cursor: pointer;
            letter-spacing: 0.01em;
            gap: 16px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            transition: all var(--transition-fast);
        }
        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E1E1E 0%, #2A2A2A 50%, #1a1a1a 100%);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 85, 0, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 900;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: var(--letter-spacing-tight);
        }
        .cta-section p {
            font-size: var(--font-h4);
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form-inline {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form-inline input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: var(--font-sm);
        }
        .cta-form-inline input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .cta-form-inline input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.2);
            outline: none;
        }

        /* ========== IMAGE TEXT BLOCK ========== */
        .img-text-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .img-text-row.reverse {
            direction: ltr;
        }
        .img-text-row.reverse>*:first-child {
            order: 2;
        }
        .img-text-row.reverse>*:last-child {
            order: 1;
        }
        .img-text-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
        }
        .img-text-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .img-text-content h3 {
            font-size: var(--font-h3);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .img-text-content p {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E1E1E;
            color: #CCC;
            padding: 50px 0 24px;
            font-size: var(--font-sm);
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: var(--letter-spacing-tight);
        }
        .footer-brand p {
            color: #aaa;
            font-size: var(--font-sm);
            line-height: 1.6;
            max-width: 320px;
        }
        .footer-links h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .footer-links a {
            display: block;
            color: #aaa;
            padding: 5px 0;
            font-size: var(--font-sm);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 18px 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: var(--font-xs);
            color: #888;
        }
        .footer-bottom a {
            color: #aaa;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-sep {
            color: rgba(255, 255, 255, 0.2);
            margin: 0 6px;
        }
        .footer-bottom span {
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 2px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --font-hero: 40px;
                --font-h2: 26px;
                --font-h3: 20px;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-cover-wrap {
                max-width: 320px;
                margin: 0 auto;
            }
            .hero-cover {
                max-width: 100%;
                transform: none;
            }
            .hero-cover:hover {
                transform: none;
            }
            .img-text-row {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .img-text-row.reverse>*:first-child {
                order: 1;
            }
            .img-text-row.reverse>*:last-child {
                order: 1;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .nav-divider {
                display: none;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-brand {
                font-size: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-hero: 32px;
                --font-h2: 24px;
                --font-h3: 19px;
                --font-h4: 17px;
                --nav-height: 62px;
            }
            .section-padding {
                padding: 50px 0;
            }
            .section-padding-sm {
                padding: 35px 0;
            }
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-num {
                font-size: 32px;
            }
            .hero-esports {
                padding: 40px 0 50px;
            }
            .hero-grid {
                gap: 30px;
            }
            .hero-cover-wrap {
                max-width: 240px;
            }
            .hero-content h1 {
                font-size: var(--font-hero);
            }
            .hero-desc {
                font-size: var(--font-body);
            }
            .hero-form {
                flex-direction: column;
            }
            .hero-form input {
                min-width: auto;
            }
            .hero-toc {
                padding: 14px 16px;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .img-text-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-form-inline {
                flex-direction: column;
                max-width: 100%;
            }
            .cta-form-inline input {
                min-width: auto;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                padding: 16px 24px;
                gap: 2px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform var(--transition-normal), opacity var(--transition-normal);
                z-index: 999;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: var(--font-body);
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-links .nav-cta {
                margin-left: 0;
                text-align: center;
                margin-top: 8px;
            }
            .nav-divider {
                display: none;
            }
            .nav-brand {
                font-size: 22px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --font-hero: 26px;
                --font-h2: 21px;
                --font-h3: 18px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-num {
                font-size: 28px;
            }
            .stat-item {
                padding: 20px 14px;
            }
            .hero-cover-wrap {
                max-width: 180px;
            }
            .hero-toc li {
                font-size: var(--font-xs);
            }
            .section-title {
                font-size: var(--font-h2);
            }
            .card-body {
                padding: 14px 16px 18px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1E1E1E;
            --accent: #FF5500;
            --accent-hover: #E04A00;
            --accent-light: rgba(255, 85, 0, 0.08);
            --accent-light2: rgba(255, 85, 0, 0.15);
            --bg: #F7F8FA;
            --card-bg: #FFFFFF;
            --dark-bg: #2A2A2A;
            --text: #1A1A1A;
            --text-secondary: #555555;
            --text-inverse: #FFFFFF;
            --text-muted: #888888;
            --border: #E0E2E6;
            --border-light: #EEF0F3;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --nav-height: 76px;
            --font-hero: 52px;
            --font-h1: 40px;
            --font-h2: 30px;
            --font-h3: 22px;
            --font-h4: 18px;
            --font-body: 16px;
            --font-sm: 14px;
            --font-xs: 12px;
            --line-height: 1.7;
            --letter-spacing-tight: -0.02em;
            --letter-spacing-normal: -0.005em;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text);
            background-color: var(--bg);
            letter-spacing: var(--letter-spacing-normal);
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border);
            border-radius: var(--radius-xs);
            padding: 12px 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--card-bg);
            color: var(--text);
            width: 100%;
        }

        input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== NAVIGATION - 杂志刊头风格 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-brand {
            font-size: 30px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-brand .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .nav-divider {
            width: 1px;
            height: 28px;
            background: var(--border);
            margin: 0 20px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 15px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .nav-links a:hover {
            color: var(--accent);
            background: var(--accent-light);
        }

        .nav-links a.active {
            color: var(--accent);
            background: var(--accent-light);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 15px;
            right: 15px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }

        .nav-links .nav-cta {
            background: var(--accent);
            color: #fff !important;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            margin-left: 8px;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }

        .nav-links .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-links .nav-cta::after {
            display: none;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            padding: 8px;
            z-index: 1001;
            border-radius: var(--radius-xs);
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(30, 30, 30, 0.88) 0%, rgba(20, 20, 20, 0.92) 100%), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 85, 0, 0.18) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(255, 85, 0, 0.10) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 100px 24px;
            width: 100%;
        }

        .hero-content {
            flex: 1;
            max-width: 620px;
        }

        .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: var(--font-xs);
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 20px;
        }

        .hero-content h1 {
            font-size: var(--font-hero);
            font-weight: 900;
            color: #fff;
            line-height: 1.18;
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 18px;
        }

        .hero-content h1 .highlight {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: var(--font-h4);
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.6;
            margin-bottom: 32px;
            max-width: 500px;
        }

        .hero-stats-row {
            display: flex;
            gap: 28px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 16px 22px;
            text-align: center;
            backdrop-filter: blur(6px);
            min-width: 100px;
        }

        .hero-stat-item .stat-num {
            font-size: 32px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            letter-spacing: var(--letter-spacing-tight);
        }

        .hero-stat-item .stat-label {
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
            letter-spacing: 0.02em;
        }

        .hero-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-primary {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: var(--font-body);
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 85, 0, 0.35);
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 85, 0, 0.45);
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: #fff;
            font-weight: 700;
            font-size: var(--font-body);
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.5);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-align: center;
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(255, 85, 0, 0.08);
            transform: translateY(-2px);
        }

        .hero-visual {
            flex: 0 0 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-rank-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            backdrop-filter: blur(10px);
            width: 100%;
            max-width: 400px;
        }

        .hero-rank-card .rank-title {
            font-size: var(--font-h4);
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            text-align: center;
            letter-spacing: 0.02em;
        }

        .hero-rank-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hero-rank-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: var(--font-sm);
            font-weight: 600;
        }

        .hero-rank-list li .rank-pos {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: var(--font-xs);
            flex-shrink: 0;
        }

        .hero-rank-list li .rank-pos.top1 {
            background: #FFD700;
            color: #1A1A1A;
        }

        .hero-rank-list li .rank-pos.top2 {
            background: #C0C0C0;
            color: #1A1A1A;
        }

        .hero-rank-list li .rank-pos.top3 {
            background: #CD7F32;
            color: #fff;
        }

        .hero-rank-list li .rank-pos.normal {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .hero-rank-list li .rank-name {
            flex: 1;
        }

        .hero-rank-list li .rank-score {
            color: var(--accent);
            font-weight: 900;
            font-size: var(--font-body);
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: var(--font-h2);
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 12px;
        }

        .section-header .section-subtitle {
            font-size: var(--font-body);
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        /* ========== RANKINGS SHOWCASE ========== */
        .rankings-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .ranking-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
            border: 1px solid var(--border-light);
        }

        .ranking-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .ranking-card-header {
            background: var(--primary);
            color: #fff;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: var(--font-h4);
            letter-spacing: 0.01em;
        }

        .ranking-card-header .rc-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .ranking-card-body {
            padding: 16px 20px;
        }

        .ranking-card-body .mini-rank-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .ranking-card-body .mini-rank-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-xs);
            background: var(--bg);
            font-size: var(--font-sm);
            font-weight: 600;
            transition: background var(--transition-fast);
        }

        .ranking-card-body .mini-rank-list li:hover {
            background: var(--accent-light);
        }

        .mini-rank-pos {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 900;
            flex-shrink: 0;
        }

        .mini-rank-pos.gold {
            background: #FFD700;
            color: #1A1A1A;
        }

        .mini-rank-pos.silver {
            background: #B0B0B0;
            color: #1A1A1A;
        }

        .mini-rank-pos.bronze {
            background: #CD7F32;
            color: #fff;
        }

        .mini-rank-name {
            flex: 1;
        }

        .mini-rank-val {
            color: var(--accent);
            font-weight: 900;
            font-size: var(--font-sm);
        }

        .ranking-card-footer {
            padding: 14px 20px;
            border-top: 1px solid var(--border-light);
            text-align: center;
        }

        .ranking-card-footer a {
            color: var(--accent);
            font-weight: 700;
            font-size: var(--font-sm);
            transition: color var(--transition-fast);
        }

        .ranking-card-footer a:hover {
            color: var(--accent-hover);
        }

        /* ========== STATS PANEL ========== */
        .stats-panel {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            border: 1px solid var(--border-light);
        }

        .stat-block {
            text-align: center;
            padding: 20px 10px;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast);
        }

        .stat-block:hover {
            background: var(--accent-light);
        }

        .stat-block .stat-icon {
            font-size: 36px;
            margin-bottom: 10px;
        }

        .stat-block .stat-value {
            font-size: 38px;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: var(--letter-spacing-tight);
            line-height: 1;
        }

        .stat-block .stat-label {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 600;
        }

        /* ========== DETAILED TABLE ========== */
        .detailed-table-wrap {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .detailed-table {
            width: 100%;
            border-collapse: collapse;
            font-size: var(--font-sm);
        }

        .detailed-table thead {
            background: var(--primary);
            color: #fff;
        }

        .detailed-table thead th {
            padding: 16px 18px;
            text-align: left;
            font-weight: 700;
            font-size: var(--font-sm);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .detailed-table tbody td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border-light);
            font-weight: 500;
        }

        .detailed-table tbody tr {
            transition: background var(--transition-fast);
        }

        .detailed-table tbody tr:hover {
            background: var(--accent-light);
        }

        .detailed-table .pos-cell {
            font-weight: 900;
            font-size: var(--font-body);
            color: var(--primary);
            width: 50px;
        }

        .detailed-table .pos-cell.top3 {
            color: var(--accent);
        }

        .detailed-table .team-cell {
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .detailed-table .team-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--border-light);
            flex-shrink: 0;
            overflow: hidden;
        }

        .detailed-table .team-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .trend-up {
            color: #16A34A;
            font-weight: 700;
        }

        .trend-down {
            color: #DC2626;
            font-weight: 700;
        }

        .trend-stable {
            color: var(--text-muted);
        }

        /* ========== COMPARE SECTION ========== */
        .compare-section {
            background: var(--dark-bg);
            color: #fff;
            padding: 80px 0;
        }

        .compare-section .section-header h2 {
            color: #fff;
        }

        .compare-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .compare-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .compare-feature-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: transform var(--transition-normal), background var(--transition-normal);
        }

        .compare-feature-card:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.09);
        }

        .compare-feature-card .cf-icon {
            font-size: 44px;
            margin-bottom: 14px;
        }

        .compare-feature-card h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }

        .compare-feature-card p {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
        }

        /* ========== COMMUNITY RANK ========== */
        .community-rank-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .community-rank-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .community-rank-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .community-rank-card .cr-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--border-light);
            margin: 0 auto 14px;
            overflow: hidden;
            border: 3px solid var(--accent);
        }

        .community-rank-card .cr-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .community-rank-card .cr-name {
            font-weight: 700;
            font-size: var(--font-body);
            margin-bottom: 4px;
        }

        .community-rank-card .cr-score {
            color: var(--accent);
            font-weight: 900;
            font-size: 20px;
        }

        .community-rank-card .cr-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--accent);
            color: #fff;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: var(--font-xs);
        }

        /* ========== HOW IT WORKS ========== */
        .how-it-works {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .steps-row {
            display: flex;
            gap: 30px;
            align-items: flex-start;
            justify-content: center;
            flex-wrap: wrap;
        }

        .step-item {
            flex: 1;
            min-width: 200px;
            text-align: center;
            position: relative;
        }

        .step-item .step-num {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 22px;
            margin: 0 auto 16px;
        }

        .step-item h4 {
            font-weight: 700;
            font-size: var(--font-h4);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .step-arrow {
            display: flex;
            align-items: center;
            color: var(--accent);
            font-size: 24px;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 10px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            background: none;
            padding: 18px 22px;
            font-size: var(--font-body);
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            text-align: left;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 18px;
            color: var(--accent);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--primary);
            color: #fff;
            padding: 80px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 900;
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: var(--font-body);
            color: rgba(255, 255, 255, 0.75);
            max-width: 550px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }

        .cta-section .btn-primary {
            font-size: var(--font-h4);
            padding: 16px 40px;
            border-radius: var(--radius-sm);
        }

        .cta-section .btn-outline-light {
            display: inline-block;
            background: transparent;
            color: #fff;
            font-weight: 700;
            font-size: var(--font-h4);
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.5);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            margin-left: 14px;
        }

        .cta-section .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(255, 85, 0, 0.1);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E1E1E;
            color: #CCC;
            padding: 50px 0 24px;
        }

        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: var(--letter-spacing-tight);
        }

        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            color: #AAA;
            max-width: 320px;
        }

        .footer-links h4 {
            font-size: var(--font-body);
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-links a {
            display: block;
            font-size: var(--font-sm);
            color: #AAA;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 18px 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: var(--font-xs);
            color: #999;
            gap: 10px;
        }

        .footer-bottom a {
            color: #AAA;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-sep {
            margin: 0 8px;
            color: #555;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                flex-direction: column;
                gap: 30px;
                padding: 60px 24px;
            }
            .hero-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 420px;
            }
            .rankings-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-panel {
                grid-template-columns: repeat(2, 1fr);
            }
            .community-rank-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-features {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-divider {
                display: none;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: var(--font-xs);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-hero: 32px;
                --font-h2: 24px;
                --font-h3: 19px;
                --font-h4: 17px;
                --nav-height: 62px;
            }

            .nav-divider {
                display: none;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-120%);
                transition: transform var(--transition-normal);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: var(--font-body);
            }
            .nav-links .nav-cta {
                margin-left: 0;
                text-align: center;
                margin-top: 6px;
            }
            .hamburger {
                display: flex;
            }
            .hero-inner {
                flex-direction: column;
                padding: 40px 20px;
                gap: 24px;
            }
            .hero-content h1 {
                font-size: var(--font-hero);
            }
            .hero-visual {
                width: 100%;
                max-width: 100%;
            }
            .hero-rank-card {
                max-width: 100%;
            }
            .hero-stats-row {
                gap: 12px;
            }
            .hero-stat-item {
                padding: 12px 16px;
                min-width: 80px;
            }
            .hero-stat-item .stat-num {
                font-size: 24px;
            }
            .hero-cta-row {
                flex-direction: column;
                gap: 10px;
            }
            .hero-cta-row .btn-primary,
            .hero-cta-row .btn-outline {
                width: 100%;
                text-align: center;
            }
            .rankings-grid {
                grid-template-columns: 1fr;
            }
            .stats-panel {
                grid-template-columns: 1fr 1fr;
                padding: 24px;
                gap: 16px;
            }
            .stat-block .stat-value {
                font-size: 28px;
            }
            .community-rank-grid {
                grid-template-columns: 1fr 1fr;
            }
            .compare-features {
                grid-template-columns: 1fr;
            }
            .detailed-table-wrap {
                overflow-x: auto;
            }
            .detailed-table {
                min-width: 700px;
            }
            .how-it-works {
                padding: 30px 20px;
            }
            .steps-row {
                flex-direction: column;
                align-items: center;
            }
            .step-arrow {
                transform: rotate(90deg);
                margin: 0;
            }
            .section {
                padding: 50px 0;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .cta-section .btn-outline-light {
                margin-left: 0;
                margin-top: 12px;
                display: block;
                width: 100%;
                max-width: 300px;
                margin-left: auto;
                margin-right: auto;
            }
        }

        @media (max-width: 520px) {
            :root {
                --font-hero: 26px;
                --font-h2: 21px;
                --font-h3: 18px;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .nav-brand {
                font-size: 24px;
            }
            .stats-panel {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .community-rank-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 8px;
            }
            .hero-stat-item {
                width: 100%;
            }
            .section-header h2 {
                font-size: var(--font-h2);
            }
            .hero-rank-card {
                padding: 20px 16px;
            }
            .ranking-card-header {
                padding: 14px 16px;
                font-size: var(--font-body);
            }
            .ranking-card-body {
                padding: 12px 16px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1E1E1E;
            --accent: #FF5500;
            --accent-hover: #E04A00;
            --accent-light: rgba(255, 85, 0, 0.08);
            --accent-light2: rgba(255, 85, 0, 0.15);
            --bg: #F7F8FA;
            --card-bg: #FFFFFF;
            --dark-bg: #2A2A2A;
            --text: #1A1A1A;
            --text-secondary: #555555;
            --text-inverse: #FFFFFF;
            --text-muted: #888888;
            --border: #E0E2E6;
            --border-light: #EEF0F3;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --nav-height: 76px;
            --font-hero: 52px;
            --font-h1: 40px;
            --font-h2: 30px;
            --font-h3: 22px;
            --font-h4: 18px;
            --font-body: 16px;
            --font-sm: 14px;
            --font-xs: 12px;
            --line-height: 1.7;
            --letter-spacing-tight: -0.02em;
            --letter-spacing-normal: -0.005em;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text);
            background-color: var(--bg);
            letter-spacing: var(--letter-spacing-normal);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border);
            border-radius: var(--radius-xs);
            padding: 12px 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--card-bg);
            color: var(--text);
            width: 100%;
        }

        input:focus,
        textarea:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .section-padding-sm {
            padding: 50px 0;
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 640px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header .section-subtitle {
            margin: 0 auto;
        }

        /* ========== NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-brand {
            font-size: 30px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: var(--letter-spacing-tight);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-brand .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                transform: scale(1);
                opacity: 0.8;
            }
            50% {
                transform: scale(1.6);
                opacity: 1;
            }
        }

        .nav-divider {
            width: 1px;
            height: 28px;
            background: var(--border);
            margin: 0 20px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 15px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }

        .nav-links a:hover {
            color: var(--accent);
            background: var(--accent-light);
        }

        .nav-links a.active {
            color: var(--accent);
            background: var(--accent-light);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 15px;
            right: 15px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-links .nav-cta {
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            margin-left: 8px;
            transition: background-color var(--transition-fast), transform var(--transition-fast);
        }

        .nav-links .nav-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(255, 85, 0, 0.35);
        }

        .nav-links .nav-cta::after {
            display: none;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
            z-index: 1001;
        }

        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 3px;
            transition: all var(--transition-fast);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-position: center 35%;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 30, 30, 0.82) 0%, rgba(30, 30, 30, 0.55) 40%, rgba(30, 30, 30, 0.72) 100%);
            z-index: 1;
        }

        .page-hero .hero-overlay-pattern {
            position: absolute;
            inset: 0;
            z-index: 2;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 85, 0, 0.13) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(255, 85, 0, 0.08) 0%, transparent 55%);
            pointer-events: none;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 3;
            max-width: 720px;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: var(--font-sm);
            font-weight: 600;
            padding: 8px 18px;
            border-radius: 24px;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .page-hero .hero-badge .badge-icon {
            font-size: 18px;
        }

        .page-hero h1 {
            font-size: var(--font-hero);
            font-weight: 900;
            color: #fff;
            letter-spacing: var(--letter-spacing-tight);
            line-height: 1.15;
            margin-bottom: 16px;
        }

        .page-hero h1 .highlight {
            color: var(--accent);
            position: relative;
            display: inline-block;
        }

        .page-hero .hero-desc {
            font-size: var(--font-h4);
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.6;
            margin-bottom: 32px;
            max-width: 560px;
        }

        .page-hero .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: var(--font-body);
            padding: 14px 30px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
            border: none;
            text-align: center;
            justify-content: center;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 18px rgba(255, 85, 0, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 85, 0, 0.45);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--border);
        }

        .btn-outline-dark:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-light);
            transform: translateY(-2px);
        }

        .hero-video-play {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.18);
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 22px;
            cursor: pointer;
            transition: all var(--transition-normal);
            flex-shrink: 0;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .hero-video-play:hover {
            background: var(--accent);
            border-color: var(--accent);
            transform: scale(1.08);
            box-shadow: 0 0 30px rgba(255, 85, 0, 0.5);
        }

        /* ========== 通用板块 ========== */
        .bg-white {
            background: #fff;
        }
        .bg-dark {
            background: var(--dark-bg);
            color: var(--text-inverse);
        }
        .bg-dark .section-title {
            color: #fff;
        }
        .bg-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .bg-dark .text-muted-inverse {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .card-body {
            padding: 20px 24px 24px;
        }

        .card-tag {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 10px;
            border-radius: 14px;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .card-title {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .card-text {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .card-link {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast);
        }

        .card-link:hover {
            gap: 10px;
            color: var(--accent-hover);
        }

        .card-link .arrow {
            transition: transform var(--transition-fast);
        }
        .card-link:hover .arrow {
            transform: translateX(3px);
        }

        /* ========== 网格 ========== */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ========== 训练模块特色卡片 ========== */
        .feature-card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 16px;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }
        .card:hover .feature-card-icon {
            background: var(--accent-light2);
        }

        /* ========== 流程步骤 ========== */
        .steps-list {
            display: flex;
            gap: 0;
            position: relative;
            counter-reset: step;
        }
        .steps-list::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 40px;
            right: 40px;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }
        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            counter-increment: step;
        }
        .step-circle {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 3px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 900;
            color: var(--accent);
            margin: 0 auto 16px;
            transition: all var(--transition-normal);
            position: relative;
            z-index: 2;
        }
        .step-item:hover .step-circle {
            border-color: var(--accent);
            background: var(--accent-light);
            box-shadow: 0 0 0 12px rgba(255, 85, 0, 0.06);
            transform: scale(1.05);
        }
        .step-title {
            font-weight: 700;
            font-size: var(--font-h4);
            color: var(--primary);
            margin-bottom: 6px;
        }
        .step-desc {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            max-width: 200px;
            margin: 0 auto;
        }

        /* ========== 统计数字 ========== */
        .stat-block {
            text-align: center;
            padding: 20px;
        }
        .stat-number {
            font-size: 42px;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: var(--letter-spacing-tight);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: var(--font-body);
            font-weight: 700;
            color: var(--primary);
            text-align: left;
            gap: 14px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--accent);
            transition: all var(--transition-fast);
        }
        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #2a1a10 100%);
            color: #fff;
            text-align: center;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 30%, rgba(255, 85, 0, 0.18) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section .section-title {
            color: #fff;
            font-size: var(--font-h1);
            margin-bottom: 12px;
        }
        .cta-section .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
            margin: 0 auto 32px;
            max-width: 560px;
        }
        .cta-section .btn-primary {
            font-size: var(--font-h4);
            padding: 16px 38px;
            box-shadow: 0 6px 24px rgba(255, 85, 0, 0.5);
        }

        /* ========== 教练卡片 ========== */
        .coach-card {
            text-align: center;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 28px 20px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }
        .coach-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .coach-avatar {
            width: 90px;
            height: 90px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 14px;
            border: 3px solid var(--accent-light);
        }
        .coach-name {
            font-weight: 800;
            font-size: var(--font-h4);
            color: var(--primary);
            margin-bottom: 4px;
        }
        .coach-role {
            font-size: var(--font-xs);
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }
        .coach-bio {
            font-size: var(--font-xs);
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ========== 计划套餐卡片 ========== */
        .plan-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            border: 2px solid var(--border-light);
            transition: all var(--transition-normal);
            text-align: center;
            position: relative;
        }
        .plan-card.featured {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
            transform: scale(1.03);
            z-index: 2;
        }
        .plan-card.featured:hover {
            transform: scale(1.05);
        }
        .plan-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .plan-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            font-size: var(--font-xs);
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 14px;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        .plan-name {
            font-size: var(--font-h3);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .plan-price {
            font-size: 38px;
            font-weight: 900;
            color: var(--accent);
            margin-bottom: 4px;
        }
        .plan-price span {
            font-size: var(--font-body);
            font-weight: 500;
            color: var(--text-secondary);
        }
        .plan-features {
            list-style: none;
            text-align: left;
            margin: 20px 0 24px;
            padding: 0;
        }
        .plan-features li {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            padding: 7px 0;
            padding-left: 22px;
            position: relative;
            border-bottom: 1px solid var(--border-light);
        }
        .plan-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: 700;
        }
        .plan-card .btn {
            width: 100%;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E1E1E;
            color: #CCC;
            padding: 50px 0 0;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: var(--letter-spacing-tight);
        }
        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.6;
            color: #AAA;
            max-width: 320px;
        }
        .footer-links h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-links a {
            display: block;
            font-size: var(--font-sm);
            color: #AAA;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 18px 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: var(--font-xs);
            color: #888;
        }
        .footer-bottom a {
            color: #AAA;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-sep {
            color: #555;
            margin: 0 6px;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .page-hero {
                min-height: 55vh;
            }
            :root {
                --font-hero: 40px;
                --font-h2: 26px;
                --font-h3: 20px;
            }
            .steps-list {
                flex-wrap: wrap;
                gap: 20px;
            }
            .steps-list::before {
                display: none;
            }
            .step-item {
                flex: 0 0 calc(50% - 10px);
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-hero: 32px;
                --font-h2: 24px;
                --font-h3: 19px;
                --font-h4: 17px;
                --nav-height: 62px;
            }
            .nav-divider {
                display: none;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition-normal);
                z-index: 999;
                border-bottom: 2px solid var(--border-light);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: var(--font-body);
            }
            .nav-links .nav-cta {
                margin-left: 0;
                text-align: center;
                margin-top: 6px;
            }
            .menu-toggle {
                display: flex;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .page-hero {
                min-height: 50vh;
                text-align: center;
            }
            .page-hero .hero-content {
                max-width: 100%;
            }
            .page-hero .hero-desc {
                max-width: 100%;
            }
            .page-hero .hero-actions {
                justify-content: center;
            }
            .section-padding {
                padding: 50px 0;
            }
            .section-padding-sm {
                padding: 35px 0;
            }
            .plan-card.featured {
                transform: none;
            }
            .plan-card.featured:hover {
                transform: translateY(-4px);
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .steps-list {
                flex-direction: column;
                gap: 18px;
            }
            .step-item {
                flex: 1;
            }
            .stat-number {
                font-size: 32px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --font-hero: 26px;
                --font-h2: 21px;
                --font-h3: 18px;
                --font-h4: 16px;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .nav-brand {
                font-size: 24px;
            }
            .page-hero {
                min-height: 45vh;
            }
            .page-hero .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .page-hero .hero-actions .btn {
                width: 100%;
            }
            .btn {
                padding: 12px 20px;
                font-size: var(--font-sm);
            }
            .section-title {
                font-size: var(--font-h3);
            }
            .footer-inner {
                padding: 0 16px 24px;
            }
            .footer-bottom {
                padding: 14px 16px;
            }
            .plan-card {
                padding: 24px 18px;
            }
            .plan-price {
                font-size: 30px;
            }
            .coach-avatar {
                width: 70px;
                height: 70px;
            }
        }