/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a45;
            --accent: #e94560;
            --accent-light: #ff6b7a;
            --accent-dark: #c2304a;
            --gradient-hero: linear-gradient(135deg, #0f1a45 0%, #1a2a6c 50%, #2d4a8e 100%);
            --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8f9fc 100%);
            --bg-body: #f4f6fb;
            --bg-white: #ffffff;
            --bg-dark: #0f1a45;
            --bg-section-alt: #eef1f8;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888a0;
            --text-light: #ffffff;
            --border-color: #e0e4f0;
            --border-light: #f0f2f8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 42, 108, 0.08);
            --shadow-lg: 0 16px 48px rgba(26, 42, 108, 0.12);
            --shadow-hover: 0 20px 56px rgba(26, 42, 108, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

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

        .container-wide {
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 26, 69, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(15, 26, 69, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .logo i {
            color: var(--accent);
            font-size: 26px;
        }

        .logo:hover {
            color: var(--text-light);
            opacity: 0.9;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-main a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .nav-main a i {
            font-size: 14px;
        }

        .nav-main a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-main a.active {
            color: var(--text-light);
            background: rgba(233, 69, 96, 0.2);
        }

        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            height: 38px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
            margin-left: 12px;
        }

        .nav-search:focus-within {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--accent);
        }

        .nav-search i {
            color: rgba(255, 255, 255, 0.4);
            font-size: 14px;
            margin-right: 8px;
        }

        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text-light);
            font-size: 14px;
            width: 120px;
            padding: 4px 0;
        }

        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .nav-search input:focus {
            width: 180px;
        }

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

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }

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

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

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

        /* ===== Hero Section ===== */
        .hero {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: var(--gradient-hero);
            overflow: hidden;
            margin-top: 0;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
            animation: heroZoom 20s ease-in-out infinite alternate;
        }

        @keyframes heroZoom {
            0% {
                transform: scale(1);
            }
            100% {
                transform: scale(1.08);
            }
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(233, 69, 96, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(45, 74, 142, 0.2) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 56px;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--accent), #ff8a9b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            max-width: 520px;
            line-height: 1.8;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            color: var(--accent);
            font-size: 12px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--text-light);
            box-shadow: 0 4px 20px rgba(233, 69, 96, 0.3);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(233, 69, 96, 0.4);
            color: var(--text-light);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255, 255, 255, 0.25);
        }

        .btn-outline:hover {
            border-color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-2px);
            color: var(--text-light);
        }

        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }

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

        .hero-card-stack {
            position: relative;
            width: 100%;
            max-width: 480px;
            aspect-ratio: 4/3;
        }

        .hero-card-stack .card-item {
            position: absolute;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            transition: var(--transition);
        }

        .hero-card-stack .card-item:nth-child(1) {
            top: 0;
            left: 0;
            width: 70%;
            height: 75%;
            background: var(--bg-white);
            z-index: 3;
            transform: rotate(-3deg);
        }

        .hero-card-stack .card-item:nth-child(2) {
            bottom: 0;
            right: 0;
            width: 65%;
            height: 60%;
            background: var(--bg-section-alt);
            z-index: 2;
            transform: rotate(4deg);
            border: 1px solid var(--border-color);
        }

        .hero-card-stack .card-item:nth-child(3) {
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) rotate(0deg);
            width: 50%;
            height: 40%;
            background: var(--accent);
            z-index: 4;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 18px;
            box-shadow: 0 12px 40px rgba(233, 69, 96, 0.3);
        }

        .hero-card-stack .card-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
        }

        .hero-stat .num span {
            color: var(--accent);
        }

        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 4px;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

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

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

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-header.light h2 {
            color: var(--text-light);
        }

        .section-header.light p {
            color: rgba(255, 255, 255, 0.6);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 16px;
            border-radius: 50px;
            background: rgba(233, 69, 96, 0.1);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        /* ===== Categories / 分类入口 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-hero);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

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

        .category-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--gradient-hero);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 24px;
            color: var(--text-light);
        }

        .category-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .category-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .category-card .tag-count {
            display: inline-block;
            margin-top: 12px;
            padding: 2px 12px;
            border-radius: 50px;
            background: var(--bg-section-alt);
            color: var(--text-secondary);
            font-size: 12px;
            font-weight: 500;
        }

        /* ===== Content Cards / 资讯卡片 ===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .content-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .content-card .card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-section-alt);
        }

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

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

        .content-card .card-image .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--text-light);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .content-card .card-image .badge-hot {
            background: #ff6b35;
        }

        .content-card .card-image .badge-new {
            background: var(--primary-light);
        }

        .content-card .card-body {
            padding: 22px 24px 24px;
        }

        .content-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .content-card .card-body .meta i {
            font-size: 12px;
        }

        .content-card .card-body .meta .category {
            color: var(--accent);
            font-weight: 600;
        }

        .content-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card .card-body h3 a {
            color: var(--text-primary);
        }

        .content-card .card-body h3 a:hover {
            color: var(--accent);
        }

        .content-card .card-body .excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .content-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }

        .content-card .card-footer .author {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .content-card .card-footer .author i {
            font-size: 16px;
            color: var(--primary-light);
        }

        .content-card .card-footer .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .content-card .card-footer .read-more:hover {
            color: var(--accent);
            gap: 8px;
        }

        /* ===== Featured / 特色板块 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .featured-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        .featured-image .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(233, 69, 96, 0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 28px;
            box-shadow: 0 8px 32px rgba(233, 69, 96, 0.3);
            transition: var(--transition);
            cursor: pointer;
        }

        .featured-image .play-btn:hover {
            transform: translate(-50%, -50%) scale(1.1);
            background: var(--accent);
        }

        .featured-text h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.25;
        }

        .featured-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .featured-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .featured-list-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            background: var(--bg-section-alt);
            transition: var(--transition);
        }

        .featured-list-item:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }

        .featured-list-item .num {
            font-size: 20px;
            font-weight: 800;
            color: var(--accent);
            min-width: 32px;
        }

        .featured-list-item .text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .featured-list-item .text strong {
            color: var(--text-primary);
        }

        /* ===== Data / 数据统计 ===== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .data-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 36px 24px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }

        .data-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
            border-color: rgba(233, 69, 96, 0.3);
        }

        .data-card .data-icon {
            font-size: 36px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .data-card .data-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
        }

        .data-card .data-num span {
            color: var(--accent);
        }

        .data-card .data-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 6px;
        }

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

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 14px;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

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

        /* ===== CTA ===== */
        .cta-section {
            background: var(--gradient-hero);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.06;
            mix-blend-mode: overlay;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            padding: 60px 0 32px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 20px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 16px;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: var(--text-light);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .footer-col h4 {
            color: var(--text-light);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a:hover {
            color: var(--text-light);
            transform: translateX(4px);
        }

        .footer-col ul li a i {
            font-size: 10px;
            color: var(--accent);
        }

        .footer-bottom {
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.35);
        }

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

        /* ===== Empty State ===== */
        .empty-state {
            text-align: center;
            padding: 60px 24px;
            color: var(--text-muted);
        }

        .empty-state i {
            font-size: 48px;
            color: var(--border-color);
            margin-bottom: 16px;
        }

        .empty-state p {
            font-size: 16px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }

            .hero-content p {
                margin: 0 auto 32px;
            }

            .hero-badges {
                justify-content: center;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-stats {
                max-width: 400px;
                margin: 32px auto 0;
            }

            .hero-card-stack {
                max-width: 380px;
                margin: 0 auto;
            }

            .hero-content h1 {
                font-size: 42px;
            }

            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }

            .nav-main {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 26, 69, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }

            .nav-main.open {
                display: flex;
            }

            .nav-main a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav-main a.active::after {
                display: none;
            }

            .nav-main a.active {
                background: rgba(233, 69, 96, 0.15);
            }

            .nav-search {
                margin-left: 0;
                width: 100%;
            }

            .nav-search input {
                width: 100%;
            }

            .nav-search input:focus {
                width: 100%;
            }

            .mobile-toggle {
                display: flex;
            }

            .header-inner {
                padding: 0 16px;
            }

            .hero {
                min-height: auto;
                padding: 100px 0 60px;
            }

            .hero-content h1 {
                font-size: 32px;
            }

            .hero-content p {
                font-size: 16px;
            }

            .section {
                padding: 56px 0;
            }

            .section-header h2 {
                font-size: 28px;
            }

            .categories-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .category-card {
                padding: 24px 16px;
            }

            .content-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .data-card {
                padding: 24px 16px;
            }

            .data-card .data-num {
                font-size: 30px;
            }

            .featured-text h2 {
                font-size: 26px;
            }

            .cta-section {
                padding: 40px 24px;
                border-radius: var(--radius-md);
            }

            .cta-section h2 {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .hero-card-stack {
                display: none;
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }

            .hero-stat .num {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 26px;
            }

            .hero-badges {
                flex-wrap: wrap;
            }

            .categories-grid {
                grid-template-columns: 1fr;
            }

            .data-grid {
                grid-template-columns: 1fr;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .section-header h2 {
                font-size: 24px;
            }

            .container {
                padding: 0 16px;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --secondary: #e94560;
            --secondary-light: #ff6b81;
            --accent: #f5a623;
            --accent-light: #ffc448;
            --bg-dark: #0b0f1c;
            --bg-mid: #131a2e;
            --bg-card: #1a2340;
            --bg-card-hover: #212d52;
            --bg-light: #f0f2f8;
            --text-white: #f0f4ff;
            --text-light: #c8d0e6;
            --text-muted: #8892b0;
            --text-dark: #1a1a2e;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 40px rgba(233, 69, 96, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-light);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--text-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 48px;
            line-height: 1.6;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(233, 69, 96, 0.12);
            color: var(--secondary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(233, 69, 96, 0.2);
        }
        .section-label i {
            font-size: 0.8rem;
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 15, 28, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--secondary);
            font-size: 1.4rem;
        }
        .logo:hover {
            color: var(--text-white);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-main a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .nav-main a i {
            font-size: 0.85rem;
        }
        .nav-main a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-main a.active {
            color: var(--text-white);
            background: rgba(233, 69, 96, 0.15);
            border-color: rgba(233, 69, 96, 0.25);
        }
        .nav-main a.active i {
            color: var(--secondary);
        }
        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 6px 16px 6px 14px;
            margin-left: 12px;
            transition: var(--transition);
            min-width: 180px;
        }
        .nav-search i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .nav-search input {
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 0.88rem;
            width: 100%;
            padding: 4px 0;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search:focus-within {
            border-color: var(--secondary);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 8px;
            cursor: pointer;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 140px 0 80px;
            min-height: 380px;
            display: flex;
            align-items: center;
            background: var(--bg-mid);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 15, 28, 0.88) 40%, rgba(26, 42, 108, 0.6) 80%, transparent 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(233, 69, 96, 0.15);
            color: var(--secondary);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(233, 69, 96, 0.2);
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .category-hero h1 span {
            color: var(--secondary);
        }
        .category-hero .hero-desc {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .category-hero .hero-stat {
            text-align: center;
        }
        .category-hero .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .category-hero .hero-stat .num small {
            font-size: 1rem;
            color: var(--secondary);
            font-weight: 600;
        }
        .category-hero .hero-stat .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ===== 分类导航子项 ===== */
        .sub-nav {
            background: var(--bg-mid);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
            position: sticky;
            top: var(--header-height);
            z-index: 100;
            backdrop-filter: blur(12px);
            background: rgba(19, 26, 46, 0.92);
        }
        .sub-nav .container {
            display: flex;
            align-items: center;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .sub-nav .container::-webkit-scrollbar {
            display: none;
        }
        .sub-nav a {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            background: transparent;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .sub-nav a i {
            font-size: 0.85rem;
        }
        .sub-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-light);
        }
        .sub-nav a.active {
            color: var(--text-white);
            background: var(--secondary);
            border-color: var(--secondary);
        }

        /* ===== 赛事分类卡片 ===== */
        .sports-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .sport-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .sport-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--secondary);
            opacity: 0;
            transition: var(--transition);
        }
        .sport-card:hover::before {
            opacity: 1;
        }
        .sport-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            background: var(--bg-card-hover);
        }
        .sport-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(233, 69, 96, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.8rem;
            color: var(--secondary);
            transition: var(--transition);
        }
        .sport-card:hover .icon-wrap {
            background: rgba(233, 69, 96, 0.18);
            transform: scale(1.05);
        }
        .sport-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .sport-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .sport-card .tag-group {
            display: flex;
            justify-content: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .sport-card .tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
        }

        /* ===== 热门赛事列表 ===== */
        .hot-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .hot-item:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .hot-item .rank {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 36px;
            text-align: center;
            font-style: italic;
            opacity: 0.5;
        }
        .hot-item .rank.top {
            color: var(--accent);
            opacity: 1;
        }
        .hot-item .info {
            flex: 1;
        }
        .hot-item .info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 4px;
        }
        .hot-item .info .meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hot-item .info .meta i {
            margin-right: 4px;
            color: var(--secondary);
        }
        .hot-item .badge-hot {
            background: rgba(233, 69, 96, 0.15);
            color: var(--secondary);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            white-space: nowrap;
        }

        /* ===== 资讯卡片 ===== */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .insight-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .insight-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .insight-card .img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .insight-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .insight-card:hover .img-wrap img {
            transform: scale(1.05);
        }
        .insight-card .img-wrap .tag-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--secondary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .insight-card .body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .insight-card .body .meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .insight-card .body .meta i {
            margin-right: 4px;
            color: var(--secondary);
        }
        .insight-card .body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .insight-card .body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .insight-card .body .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.88rem;
            margin-top: 16px;
            transition: var(--transition);
        }
        .insight-card .body .read-more i {
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .insight-card .body .read-more:hover i {
            transform: translateX(4px);
        }

        /* ===== 赛事流程 ===== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .flow-step {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            position: relative;
            transition: var(--transition);
        }
        .flow-step:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .flow-step::before {
            counter-increment: step;
            content: '0' counter(step);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 2.4rem;
            font-weight: 800;
            color: rgba(233, 69, 96, 0.08);
            line-height: 1;
            letter-spacing: -2px;
        }
        .flow-step .icon {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: 16px;
        }
        .flow-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .flow-step p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item summary {
            padding: 20px 28px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 1.1rem;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--secondary);
        }
        .faq-item summary:hover {
            color: var(--secondary);
        }
        .faq-item .answer {
            padding: 0 28px 24px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-mid);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(233, 69, 96, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: var(--border-light);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--text-white);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1.1rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .footer-col ul li a i {
            font-size: 0.65rem;
            color: var(--secondary);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--text-white);
            transform: translateX(4px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .insight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-hero h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .nav-main a {
                padding: 6px 14px;
                font-size: 0.82rem;
            }
            .nav-search {
                min-width: 120px;
                padding: 4px 12px;
            }
            .nav-search input {
                font-size: 0.8rem;
            }
            .category-hero {
                padding: 120px 0 56px;
                min-height: auto;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .hero-desc {
                font-size: 1rem;
            }
            .category-hero .hero-stats {
                gap: 24px;
            }
            .category-hero .hero-stat .num {
                font-size: 1.5rem;
            }
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .sport-card {
                padding: 24px 16px 20px;
            }
            .sport-card .icon-wrap {
                width: 52px;
                height: 52px;
                font-size: 1.4rem;
            }
            .hot-list {
                grid-template-columns: 1fr;
            }
            .insight-grid {
                grid-template-columns: 1fr;
            }
            .insight-card .img-wrap {
                height: 180px;
            }
            .flow-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .flow-step {
                padding: 24px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .faq-item summary {
                padding: 16px 20px;
                font-size: 0.95rem;
            }
            .faq-item .answer {
                padding: 0 20px 18px;
                font-size: 0.88rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .btn {
                padding: 12px 28px;
                font-size: 0.92rem;
            }
            .nav-toggle {
                display: block;
            }
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(11, 15, 28, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-main a {
                width: 100%;
                justify-content: center;
                padding: 12px 16px;
            }
            .nav-search {
                width: 100%;
                margin-left: 0;
                margin-top: 8px;
            }
            .sub-nav .container {
                gap: 6px;
                padding: 0 12px;
            }
            .sub-nav a {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .sports-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .sport-card {
                padding: 18px 12px 16px;
            }
            .sport-card .icon-wrap {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
                margin-bottom: 12px;
            }
            .sport-card h3 {
                font-size: 1rem;
            }
            .sport-card p {
                font-size: 0.8rem;
            }
            .flow-grid {
                grid-template-columns: 1fr;
            }
            .category-hero .hero-stats {
                gap: 16px;
                flex-direction: column;
                align-items: flex-start;
            }
            .category-hero .hero-stat {
                display: flex;
                gap: 12px;
                align-items: center;
                text-align: left;
            }
            .hot-item {
                flex-direction: column;
                text-align: center;
                padding: 16px;
            }
            .hot-item .rank {
                min-width: auto;
            }
            .hot-item .info .meta {
                justify-content: center;
            }
            .insight-card .body {
                padding: 16px 18px 20px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #0B1A30;
            --primary-light: #132847;
            --accent: #D4A843;
            --accent-hover: #E8C36A;
            --accent-glow: rgba(212, 168, 67, 0.25);
            --bg-body: #F5F7FA;
            --bg-card: #FFFFFF;
            --bg-dark: #0B1A30;
            --bg-section-alt: #EDF0F5;
            --text-primary: #1A1A2E;
            --text-secondary: #4A4A6A;
            --text-muted: #8888A0;
            --text-inverse: #FFFFFF;
            --border-color: #E2E6ED;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(11,26,48,0.06);
            --shadow-md: 0 6px 24px rgba(11,26,48,0.08);
            --shadow-lg: 0 16px 48px rgba(11,26,48,0.12);
            --shadow-accent: 0 4px 20px rgba(212,168,67,0.3);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --content-max: 780px;
            --gap-section: 80px;
            --gap-card: 28px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        button, input, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; }
        ul { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 1.9rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1.2rem; color: var(--text-secondary); }
        p:last-child { margin-bottom: 0; }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-content {
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 4px rgba(11,26,48,0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.35rem;
            filter: drop-shadow(0 0 6px var(--accent-glow));
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-main a i { font-size: 0.85rem; opacity: 0.7; }
        .nav-main a:hover {
            color: var(--accent);
            background: rgba(212,168,67,0.08);
        }
        .nav-main a.active {
            color: var(--accent);
            background: rgba(212,168,67,0.12);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-section-alt);
            border: 1px solid var(--border-color);
            border-radius: 40px;
            padding: 6px 16px;
            margin-left: 12px;
            transition: all var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--accent-glow);
        }
        .nav-search i { color: var(--text-muted); font-size: 0.9rem; }
        .nav-search input {
            background: transparent;
            border: none;
            padding: 4px 0;
            width: 140px;
            font-size: 0.9rem;
            color: var(--text-primary);
        }
        .nav-search input::placeholder { color: var(--text-muted); }
        .menu-toggle { display: none; background: none; font-size: 1.4rem; color: var(--text-primary); cursor: pointer; padding: 4px; }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--bg-dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            isolation: isolate;
            padding: 60px 24px;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,26,48,0.88) 0%, rgba(11,26,48,0.72) 100%);
            z-index: 0;
        }
        .article-hero .hero-content {
            position: relative;
            z-index: 1;
            max-width: 820px;
        }
        .article-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.3px;
            padding: 4px 16px;
            border-radius: 40px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .article-hero h1 {
            color: var(--text-inverse);
            font-size: 2.6rem;
            line-height: 1.25;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .article-hero .hero-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
        }
        .article-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero .hero-meta i { color: var(--accent); font-size: 0.85rem; }

        /* ===== Article Content ===== */
        .article-body {
            background: var(--bg-card);
            padding: 48px 0 56px;
            box-shadow: 0 1px 0 var(--border-light);
        }
        .article-body .content-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .content-body h2 { margin-top: 40px; margin-bottom: 16px; font-size: 1.65rem; border-bottom: 2px solid var(--border-light); padding-bottom: 10px; }
        .content-body h3 { margin-top: 32px; margin-bottom: 12px; font-size: 1.3rem; }
        .content-body p { margin-bottom: 1.4rem; color: var(--text-secondary); font-size: 1.05rem; }
        .content-body ul, .content-body ol { margin-bottom: 1.4rem; padding-left: 1.8rem; color: var(--text-secondary); }
        .content-body li { margin-bottom: 0.5rem; }
        .content-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-section-alt);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .content-body img {
            border-radius: var(--radius-md);
            margin: 28px 0;
            box-shadow: var(--shadow-sm);
            width: 100%;
            object-fit: cover;
        }
        .content-body a { color: var(--accent); font-weight: 500; border-bottom: 1px solid transparent; }
        .content-body a:hover { border-bottom-color: var(--accent); }
        .content-body .highlight {
            background: linear-gradient(120deg, rgba(212,168,67,0.12) 0%, rgba(212,168,67,0.04) 100%);
            padding: 2px 8px;
            border-radius: 4px;
        }

        /* ===== Tags & Share ===== */
        .article-tags {
            padding: 24px 0 48px;
            border-top: 1px solid var(--border-light);
            margin-top: 32px;
        }
        .article-tags .tags-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-tags .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag-list a {
            display: inline-block;
            padding: 4px 16px;
            background: var(--bg-section-alt);
            border: 1px solid var(--border-color);
            border-radius: 40px;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .article-tags .tag-list a:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .article-tags .share-list {
            display: flex;
            gap: 10px;
        }
        .article-tags .share-list a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-section-alt);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 1rem;
            transition: all var(--transition);
        }
        .article-tags .share-list a:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            opacity: 0.5;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .not-found-box p {
            color: var(--text-muted);
            max-width: 480px;
            margin: 0 auto 28px;
        }

        /* ===== Related ===== */
        .related-section {
            padding: 64px 0;
            background: var(--bg-section-alt);
        }
        .related-section .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .related-section .section-title h2 { font-size: 1.7rem; position: relative; display: inline-block; }
        .related-section .section-title h2::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
            margin: 8px auto 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap-card);
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .related-card .card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-section-alt);
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .card-img img { transform: scale(1.06); }
        .related-card .card-body {
            padding: 16px 18px 20px;
        }
        .related-card .card-body .card-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 64px 0;
            background: var(--bg-card);
        }
        .faq-section .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .faq-section .section-title h2 { font-size: 1.7rem; position: relative; display: inline-block; }
        .faq-section .section-title h2::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
            margin: 8px auto 0;
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-section-alt);
            transition: background var(--transition);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--accent);
            transition: transform var(--transition);
        }
        .faq-item[open] summary { background: rgba(212,168,67,0.06); }
        .faq-item[open] summary::after { transform: rotate(180deg); }
        .faq-item .faq-answer {
            padding: 16px 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            border-top: 1px solid var(--border-light);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 72px 24px;
            background: var(--bg-dark) url('/assets/images/backpic/back-3.png') center center / cover no-repeat fixed;
            text-align: center;
            isolation: isolate;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,26,48,0.92) 0%, rgba(11,26,48,0.78) 100%);
            z-index: 0;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 {
            color: var(--text-inverse);
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.7);
            max-width: 540px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(212,168,67,0.45);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-inverse);
            border: 2px solid rgba(255,255,255,0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: var(--text-inverse); margin-bottom: 16px; display: inline-flex; }
        .footer-brand p { color: rgba(255,255,255,0.55); font-size: 0.9rem; line-height: 1.7; max-width: 360px; }
        .footer-social { display: flex; gap: 12px; margin-top: 20px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            transition: all var(--transition);
            border: 1px solid rgba(255,255,255,0.06);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            transform: translateY(-3px);
        }
        .footer-col h4 {
            color: var(--text-inverse);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: rgba(255,255,255,0.5);
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
        }
        .footer-col ul li a i { font-size: 0.65rem; color: var(--accent); opacity: 0.6; }
        .footer-col ul li a:hover { color: var(--accent); transform: translateX(4px); }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .article-hero h1 { font-size: 2.2rem; }
        }
        @media (max-width: 768px) {
            .header-inner { height: 60px; }
            .nav-main a { font-size: 0.85rem; padding: 6px 12px; }
            .nav-search input { width: 100px; }
            .menu-toggle { display: block; }
            .nav-main { gap: 4px; }
            .article-hero { min-height: 240px; padding: 40px 20px; }
            .article-hero h1 { font-size: 1.7rem; }
            .article-hero .hero-meta { gap: 12px; font-size: 0.82rem; }
            .article-body { padding: 32px 0 40px; }
            .content-body { font-size: 0.98rem; }
            .content-body h2 { font-size: 1.35rem; }
            .related-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .faq-list { padding: 0; }
            .faq-item summary { padding: 14px 18px; font-size: 0.95rem; }
            .cta-section { padding: 48px 20px; }
            .cta-section h2 { font-size: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .header-inner { padding: 0 16px; }
            .nav-main a { font-size: 0.78rem; padding: 4px 8px; }
            .nav-main a i { display: none; }
            .nav-search { margin-left: 4px; padding: 4px 10px; }
            .nav-search input { width: 70px; font-size: 0.78rem; }
            .logo { font-size: 1.15rem; gap: 6px; }
            .article-hero h1 { font-size: 1.35rem; }
            .article-hero .hero-meta { flex-direction: column; gap: 6px; }
            .related-grid { grid-template-columns: 1fr; }
            .article-tags .tags-wrap { flex-direction: column; align-items: flex-start; }
            .btn { padding: 12px 28px; font-size: 0.9rem; }
            .container { padding: 0 16px; }
            .container-content { padding: 0 16px; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }