/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a44;
            --accent: #f5b042;
            --accent-light: #f8c56a;
            --accent-dark: #d9952a;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0f1a44;
            --bg-soft: #eef1f7;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #ffffff;
            --border: #e4e7ef;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(26, 42, 108, 0.08);
            --shadow-lg: 0 16px 48px rgba(26, 42, 108, 0.14);
            --shadow-hover: 0 20px 56px rgba(26, 42, 108, 0.18);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-body);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 通用间距 ===== */
        .section-padding {
            padding: 90px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 1rem;
                margin-bottom: 32px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.3rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-main a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-main a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-main a:hover {
            color: var(--primary);
        }
        .nav-main a:hover::after {
            width: 100%;
        }
        .nav-main a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-main a.active::after {
            width: 100%;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark) !important;
            padding: 10px 24px !important;
            border-radius: 50px;
            font-weight: 600 !important;
            box-shadow: 0 4px 16px rgba(245, 176, 66, 0.3);
            transition: var(--transition);
        }
        .nav-cta::after {
            display: none !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 176, 66, 0.4);
            color: var(--primary-dark) !important;
        }
        .nav-cta i {
            font-size: 0.9rem;
        }

        /* ===== 移动端菜单 ===== */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 4px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        @media (max-width: 820px) {
            .menu-toggle {
                display: flex;
            }
            .nav-main {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 24px 32px;
                gap: 20px;
                box-shadow: 0 20px 48px rgba(0, 0, 0, 0.1);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 2px solid var(--border);
                align-items: stretch;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                font-size: 1.1rem;
                padding: 10px 0;
                text-align: center;
            }
            .nav-cta {
                justify-content: center;
                margin-top: 8px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 92vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            margin-top: var(--header-h);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 68, 0.82) 0%, rgba(26, 42, 108, 0.65) 50%, rgba(15, 26, 68, 0.40) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 180px;
            background: linear-gradient(to top, var(--bg-body), transparent);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 780px;
            padding: 60px 0 100px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            padding: 8px 20px;
            border-radius: 50px;
            color: var(--text-white);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.3px;
            margin-bottom: 28px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero h1 {
            font-size: 3.6rem;
            font-weight: 800;
            line-height: 1.15;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent), #ffd700);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 600px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 8px 28px rgba(245, 176, 66, 0.35);
            transition: var(--transition);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245, 176, 66, 0.45);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-white);
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            background: rgba(245, 176, 66, 0.10);
            color: var(--accent);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            color: var(--text-white);
        }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            display: block;
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            font-weight: 400;
        }
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.8rem;
            }
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 80vh;
            }
            .hero h1 {
                font-size: 2.0rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline-light {
                justify-content: center;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 36px;
            }
            .hero-stat-item .num {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 6px 14px;
            }
        }

        /* ===== 平台优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-light);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--text-white);
        }
        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 热门赛事 / 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            min-height: 260px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .category-card .card-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
            transition: var(--transition);
        }
        .category-card:hover .card-bg {
            transform: scale(1.05);
        }
        .category-card .card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 26, 68, 0.85) 0%, rgba(15, 26, 68, 0.20) 70%, transparent 100%);
            z-index: 1;
        }
        .category-card .card-body {
            position: relative;
            z-index: 2;
            padding: 28px 24px;
            color: var(--text-white);
        }
        .category-card .tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .category-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .category-card p {
            font-size: 0.9rem;
            opacity: 0.8;
            line-height: 1.6;
        }
        .category-card .card-link {
            position: absolute;
            inset: 0;
            z-index: 3;
            display: block;
            text-indent: -9999px;
        }
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 最新资讯（CMS列表） ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .news-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .news-card .card-content {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .news-card .meta .cat {
            background: var(--bg-soft);
            color: var(--primary);
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
        }
        .news-card .meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .news-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .news-card h3 a {
            color: inherit;
        }
        .news-card h3 a:hover {
            color: var(--primary-light);
        }
        .news-card .excerpt {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--text-light);
            font-size: 1rem;
        }
        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 26, 68, 0.82);
            z-index: 1;
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item {
            padding: 24px 12px;
            color: var(--text-white);
        }
        .stat-item .num {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 6px;
            background: linear-gradient(135deg, var(--accent), #ffd700);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-item .label {
            font-size: 0.95rem;
            opacity: 0.75;
            font-weight: 400;
        }
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-item .num {
                font-size: 2rem;
            }
        }

        /* ===== 服务流程 ===== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px 32px;
            counter-reset: step;
        }
        .flow-step {
            text-align: center;
            position: relative;
            counter-increment: step;
        }
        .flow-step::before {
            content: counter(step);
            display: block;
            width: 48px;
            height: 48px;
            line-height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--text-white);
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 18px;
        }
        .flow-step .icon-wrap {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .flow-step h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .flow-step p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .flow-step:not(:last-child)::after {
            content: '→';
            position: absolute;
            right: -24px;
            top: 24px;
            font-size: 1.6rem;
            color: var(--accent);
            opacity: 0.5;
            font-weight: 300;
        }
        @media (max-width: 1024px) {
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-step:nth-child(2)::after {
                display: none;
            }
        }
        @media (max-width: 640px) {
            .flow-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .flow-step::after {
                display: none !important;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent-light);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            color: var(--text-white);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.10;
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 18px 44px;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
                border-radius: var(--radius);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.8;
            max-width: 320px;
            opacity: 0.7;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            padding: 4px 0;
            opacity: 0.7;
            transition: var(--transition);
        }
        .footer-col a:hover {
            opacity: 1;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            opacity: 0.6;
        }
        .footer-bottom a {
            color: var(--accent);
            opacity: 0.8;
        }
        .footer-bottom a:hover {
            opacity: 1;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 通用工具 ===== */
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .gap-8 {
            gap: 8px;
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary-light);
            border-radius: 12px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* ===== 动画 ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-up {
            animation: fadeUp 0.7s 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 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #fdf0f0;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #ffb703;
            --accent-dark: #fb8500;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #0b1a2e;
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #f1f1f1;
            --border-color: #e8e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 12px 40px rgba(230, 57, 70, 0.15);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container-max: 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-sans);
            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(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 {
            font-size: 2.6rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            color: var(--text-secondary);
            margin-bottom: 0.8rem;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--secondary);
        }
        .logo i {
            color: var(--primary);
            font-size: 1.8rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            transition: var(--transition);
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary);
        }
        .nav-main a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.4);
            color: #fff;
        }
        .nav-main a.nav-cta i {
            font-size: 0.9rem;
        }
        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            padding: 4px 8px;
            background: none;
            border: none;
            cursor: pointer;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 46, 0.88), rgba(230, 57, 70, 0.55));
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 3rem;
            color: #fff;
            margin-bottom: 16px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 28px;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 8px;
        }
        .banner-tags .tag {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: #fff;
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition);
        }
        .banner-tags .tag:hover {
            background: rgba(255, 255, 255, 0.25);
            transform: scale(1.04);
        }

        /* ===== Sections Common ===== */
        section {
            padding: 80px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 14px auto 0;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-top: 12px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Sport Categories Grid ===== */
        .sport-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .sport-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 20px 26px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: default;
        }
        .sport-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .sport-card .icon-wrap {
            width: 68px;
            height: 68px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .sport-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .sport-card h3 {
            font-size: 1.2rem;
            margin-bottom: 6px;
        }
        .sport-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .sport-card .badge-count {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ===== Featured Events / Cards ===== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .event-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .event-card .card-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .event-card .card-img .overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 20px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
        }
        .event-card .card-img .overlay .tag-live {
            background: var(--primary);
            color: #fff;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            display: inline-block;
        }
        .event-card .card-body {
            padding: 20px 22px 24px;
        }
        .event-card .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .event-card .card-body .meta {
            display: flex;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .event-card .card-body .meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .event-card .card-body p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .event-card .card-body .btn-outline {
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            background: transparent;
            transition: var(--transition);
            display: inline-block;
        }
        .event-card .card-body .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Data Stats ===== */
        .stats-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 46, 0.92), rgba(230, 57, 70, 0.6));
            z-index: 1;
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-section .section-title h2 {
            color: #fff;
        }
        .stats-section .section-title h2::after {
            background: var(--accent);
        }
        .stats-section .section-title p {
            color: rgba(255, 255, 255, 0.75);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-4px);
        }
        .stat-item .number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 6px;
        }

        /* ===== Schedule / Timeline ===== */
        .schedule-list {
            display: grid;
            gap: 16px;
        }
        .schedule-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .schedule-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .schedule-item .time {
            min-width: 80px;
            font-weight: 700;
            color: var(--primary);
            font-size: 1.05rem;
        }
        .schedule-item .info {
            flex: 1;
        }
        .schedule-item .info h4 {
            font-size: 1rem;
            margin-bottom: 2px;
        }
        .schedule-item .info p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
        }
        .schedule-item .status {
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
        }
        .schedule-item .status.live {
            background: #e63946;
            color: #fff;
            animation: pulse-live 1.6s infinite;
        }
        @keyframes pulse-live {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 780px;
            margin: 0 auto;
            display: grid;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            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-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
            color: var(--text-primary);
        }
        .faq-item .faq-q:hover {
            background: var(--primary-light);
        }
        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--text-light);
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-a {
            max-height: 260px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--secondary);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29, 53, 87, 0.92), rgba(230, 57, 70, 0.5));
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--secondary);
            padding: 16px 40px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 8px 32px rgba(255, 183, 3, 0.35);
            transition: var(--transition);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(255, 183, 3, 0.45);
            color: var(--secondary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .logo {
            font-size: 1.5rem;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .sport-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .events-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .page-banner h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .nav-main {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }
            .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.nav-cta {
                justify-content: center;
                margin-top: 8px;
                padding: 14px 26px;
            }
            .nav-toggle {
                display: block;
            }
            .page-banner {
                padding: 72px 0 56px;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            section {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 1.6rem;
            }
            .sport-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .events-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .schedule-item {
                flex-wrap: wrap;
                gap: 12px;
                padding: 16px 18px;
            }
            .schedule-item .time {
                min-width: 60px;
                font-size: 0.9rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .stat-item .number {
                font-size: 2rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .sport-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .banner-tags .tag {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
            .sport-card {
                padding: 24px 16px 20px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .btn-cta {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
        }

        /* ===== Mobile Nav Toggle Helper ===== */
        .nav-main a.active {
            background: var(--primary-light);
            color: var(--primary);
        }

/* roulang page: article */
:root {
  --primary: #1a2a6c;
  --primary-light: #2d4a8e;
  --primary-dark: #0f1a4a;
  --accent: #e84c3d;
  --accent-light: #ff6b5a;
  --accent-dark: #c0392b;
  --gold: #f7c948;
  --gold-light: #ffe08a;
  --bg-dark: #0b0f1a;
  --bg-card: #131a2e;
  --bg-section: #0f1628;
  --bg-light: #f0f2f8;
  --text-light: #f0f4ff;
  --text-muted: #8a94b0;
  --text-dark: #1a1a2e;
  --border-color: rgba(255,255,255,0.08);
  --border-light: rgba(0,0,0,0.06);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.15);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --container: 1200px;
  --nav-height: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg-dark); color: var(--text-light); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--gold); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold-light); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section-padding { padding: 80px 0; }
.section-title { font-size: 2rem; font-weight: 700; margin-bottom: 0.75rem; letter-spacing: -0.02em; }
.section-sub { color: var(--text-muted); font-size: 1.05rem; max-width: 640px; margin-bottom: 2.5rem; line-height: 1.6; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
/* header */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(11,15,26,0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-color); height: var(--nav-height); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-height); max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 700; color: #fff; letter-spacing: -0.02em; }
.logo i { color: var(--gold); font-size: 1.6rem; }
.logo span { background: linear-gradient(135deg, #fff 40%, var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-main { display: flex; align-items: center; gap: 6px; }
.nav-main a { padding: 8px 18px; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 500; color: var(--text-muted); transition: var(--transition); position: relative; white-space: nowrap; }
.nav-main a:hover { color: #fff; background: rgba(255,255,255,0.06); }
.nav-main a.active { color: #fff; background: rgba(247,201,72,0.12); }
.nav-main a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--gold); border-radius: 2px; }
.nav-cta { background: linear-gradient(135deg, var(--accent), var(--accent-dark)) !important; color: #fff !important; padding: 10px 24px !important; border-radius: var(--radius-sm) !important; font-weight: 600 !important; box-shadow: 0 4px 16px rgba(232,76,61,0.3); }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(232,76,61,0.45) !important; color: #fff !important; }
.nav-cta i { margin-right: 6px; }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.mobile-toggle span { display: block; width: 26px; height: 2px; background: var(--text-light); border-radius: 2px; transition: var(--transition); }
/* page hero */
.page-hero { position: relative; margin-top: var(--nav-height); min-height: 320px; display: flex; align-items: center; justify-content: center; text-align: center; overflow: hidden; background: var(--bg-dark); }
.page-hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; opacity: 0.3; z-index: 0; }
.page-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,15,26,0.4) 0%, rgba(11,15,26,0.9) 100%); z-index: 1; }
.page-hero-content { position: relative; z-index: 2; max-width: 800px; padding: 60px 24px; }
.page-hero-content .category-badge { display: inline-block; background: rgba(247,201,72,0.18); color: var(--gold); padding: 6px 18px; border-radius: 30px; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 16px; }
.page-hero-content h1 { font-size: 2.6rem; font-weight: 800; line-height: 1.25; letter-spacing: -0.03em; margin-bottom: 16px; color: #fff; }
.page-hero-content .meta { display: flex; align-items: center; justify-content: center; gap: 20px; font-size: 0.9rem; color: var(--text-muted); flex-wrap: wrap; }
.page-hero-content .meta i { margin-right: 4px; }
/* breadcrumb */
.breadcrumb { background: rgba(255,255,255,0.03); border-bottom: 1px solid var(--border-color); padding: 14px 0; }
.breadcrumb-inner { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; color: var(--text-muted); flex-wrap: wrap; }
.breadcrumb-inner a { color: var(--text-muted); }
.breadcrumb-inner a:hover { color: var(--gold); }
.breadcrumb-inner span { color: var(--text-light); }
.breadcrumb-inner .sep { color: var(--text-muted); opacity: 0.4; }
/* article main */
.article-main { padding: 60px 0 80px; }
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; }
.article-body { background: var(--bg-card); border-radius: var(--radius); padding: 40px; border: 1px solid var(--border-color); }
.article-body .article-title { font-size: 1.8rem; font-weight: 700; line-height: 1.3; margin-bottom: 20px; letter-spacing: -0.02em; }
.article-body .article-meta { display: flex; flex-wrap: wrap; gap: 16px 28px; font-size: 0.9rem; color: var(--text-muted); padding-bottom: 24px; border-bottom: 1px solid var(--border-color); margin-bottom: 28px; }
.article-body .article-meta i { margin-right: 6px; }
.article-body .article-meta .tag { background: rgba(247,201,72,0.1); color: var(--gold); padding: 2px 12px; border-radius: 20px; font-size: 0.82rem; font-weight: 500; }
.article-body .article-content { font-size: 1.05rem; line-height: 1.85; color: rgba(240,244,255,0.92); }
.article-body .article-content p { margin-bottom: 1.4em; }
.article-body .article-content h2, .article-body .article-content h3 { margin-top: 1.6em; margin-bottom: 0.6em; color: #fff; font-weight: 700; letter-spacing: -0.01em; }
.article-body .article-content h2 { font-size: 1.5rem; }
.article-body .article-content h3 { font-size: 1.25rem; }
.article-body .article-content ul, .article-body .article-content ol { margin-bottom: 1.4em; padding-left: 1.6em; }
.article-body .article-content li { margin-bottom: 0.4em; }
.article-body .article-content img { border-radius: var(--radius-sm); margin: 1.2em 0; }
.article-body .article-content blockquote { border-left: 4px solid var(--gold); padding: 12px 20px; margin: 1.2em 0; background: rgba(247,201,72,0.06); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-muted); }
/* sidebar */
.article-sidebar { display: flex; flex-direction: column; gap: 32px; }
.sidebar-card { background: var(--bg-card); border-radius: var(--radius); padding: 28px; border: 1px solid var(--border-color); }
.sidebar-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; color: #fff; letter-spacing: -0.01em; }
.sidebar-card h3 i { color: var(--gold); margin-right: 8px; }
.sidebar-list { list-style: none; }
.sidebar-list li { border-bottom: 1px solid var(--border-color); padding: 12px 0; }
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a { display: flex; gap: 12px; align-items: flex-start; color: var(--text-muted); font-size: 0.9rem; line-height: 1.4; }
.sidebar-list a:hover { color: var(--gold); }
.sidebar-list .thumb { width: 60px; height: 60px; border-radius: 8px; object-fit: cover; flex-shrink: 0; background: var(--bg-section); }
.sidebar-list .info { flex: 1; min-width: 0; }
.sidebar-list .info .title { font-weight: 600; color: var(--text-light); margin-bottom: 2px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sidebar-list .info .date { font-size: 0.8rem; color: var(--text-muted); }
.sidebar-cta { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border: 1px solid rgba(255,255,255,0.06); text-align: center; }
.sidebar-cta h3 { font-size: 1.2rem; }
.sidebar-cta p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 20px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.95rem; border: none; cursor: pointer; transition: var(--transition); text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; box-shadow: 0 4px 16px rgba(232,76,61,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(232,76,61,0.45); color: #fff; }
.btn-outline { background: transparent; color: var(--gold); border: 2px solid var(--gold); }
.btn-outline:hover { background: var(--gold); color: var(--bg-dark); }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
/* not found */
.not-found-box { text-align: center; padding: 80px 40px; background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border-color); }
.not-found-box i { font-size: 3rem; color: var(--text-muted); margin-bottom: 20px; }
.not-found-box h2 { font-size: 1.6rem; margin-bottom: 12px; }
.not-found-box p { color: var(--text-muted); margin-bottom: 24px; }
/* related */
.related-section { background: var(--bg-section); border-top: 1px solid var(--border-color); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: var(--bg-card); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-color); transition: var(--transition); }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(247,201,72,0.2); }
.related-card .card-img { width: 100%; height: 180px; object-fit: cover; background: var(--bg-section); }
.related-card .card-body { padding: 20px; }
.related-card .card-body .cat { font-size: 0.8rem; color: var(--gold); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.related-card .card-body h4 { font-size: 1.05rem; font-weight: 600; line-height: 1.35; margin-bottom: 8px; color: #fff; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body p { font-size: 0.88rem; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.related-card .card-body .date { font-size: 0.8rem; color: var(--text-muted); }
/* faq */
.faq-section { background: var(--bg-dark); }
.faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border-radius: var(--radius-sm); border: 1px solid var(--border-color); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(247,201,72,0.15); }
.faq-item summary { padding: 18px 24px; font-weight: 600; font-size: 1rem; cursor: pointer; display: flex; align-items: center; gap: 12px; color: var(--text-light); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--gold); font-size: 0.9rem; transition: var(--transition); }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 24px 18px; color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }
/* cta */
.cta-section { background: linear-gradient(135deg, var(--primary-dark), var(--bg-dark)); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); text-align: center; }
.cta-section h2 { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px; }
.cta-section p { color: var(--text-muted); max-width: 560px; margin: 0 auto 28px; font-size: 1.05rem; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
/* 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: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 14px; font-size: 1.3rem; }
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; max-width: 360px; }
.footer-col h4 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 16px; letter-spacing: 0.3px; }
.footer-col a { display: block; color: var(--text-muted); font-size: 0.9rem; padding: 5px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--gold); padding-left: 4px; }
.footer-bottom { border-top: 1px solid var(--border-color); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; 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(--gold); }
/* responsiveness */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-main a:not(.nav-cta):not(.active) { display: none; }
  .mobile-toggle { display: flex; }
  .nav-main.open a:not(.nav-cta) { display: block; }
  .nav-main.open { flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: rgba(11,15,26,0.98); backdrop-filter: blur(16px); padding: 16px 24px; border-bottom: 1px solid var(--border-color); gap: 4px; }
  .nav-main.open a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
  .nav-main.open .nav-cta { margin-top: 8px; text-align: center; }
  .page-hero-content h1 { font-size: 1.8rem; }
  .article-body { padding: 24px; }
  .article-body .article-title { font-size: 1.4rem; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section-padding { padding: 48px 0; }
  .section-title { font-size: 1.6rem; }
}
@media (max-width: 520px) {
  .page-hero { min-height: 240px; }
  .page-hero-content { padding: 40px 16px; }
  .page-hero-content h1 { font-size: 1.4rem; }
  .article-body { padding: 16px; }
  .article-body .article-meta { gap: 10px; font-size: 0.82rem; }
  .cta-section h2 { font-size: 1.6rem; }
  .container { padding: 0 16px; }
}