/* roulang page: index */
:root {
            --primary: #1e3a5f;
            --primary-light: #2d4a7a;
            --primary-dark: #152741;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg: #f8fafc;
            --bg-deep: #f1f5f9;
            --card: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --shadow: 0 4px 24px rgba(30, 58, 95, 0.08);
            --shadow-hover: 0 12px 36px rgba(30, 58, 95, 0.14);
            --transition: all 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 顶部信息条 ===== */
        .topbar {
            background: linear-gradient(90deg, #152741 0%, #1e3a5f 100%);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            padding: 6px 0;
        }
        .topbar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .topbar-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .topbar-left i {
            color: var(--accent);
            font-size: 14px;
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .topbar-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .topbar-link:hover {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .topbar-right {
                display: none;
            }
        }

        /* ===== 主导航 ===== */
        .main-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(30, 58, 95, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 32px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(30, 58, 95, 0.25);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(30, 58, 95, 0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }
        @media (max-width: 1024px) {
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                padding: 16px 24px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                box-shadow: 0 12px 24px rgba(30, 58, 95, 0.08);
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
            }
            .nav-link.active::after {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 18px;
            }
            .header-inner {
                height: 64px;
            }
            .main-nav {
                top: 64px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background-size: cover;
            background-position: center;
            min-height: 620px;
            display: flex;
            align-items: center;
            padding: 80px 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(16, 29, 48, 0.92) 0%, rgba(30, 58, 95, 0.75) 50%, rgba(30, 58, 95, 0.35) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 60px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            backdrop-filter: blur(8px);
            margin-bottom: 20px;
        }
        .hero-content h1 {
            font-size: 46px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .hero-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #1e293b;
            font-weight: 600;
            padding: 14px 30px;
            border-radius: 50px;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
            transition: var(--transition);
            font-size: 15px;
        }
        .btn-primary:hover {
            background: #fbbf24;
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.45);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-weight: 500;
            padding: 13px 28px;
            border-radius: 50px;
            transition: var(--transition);
            backdrop-filter: blur(4px);
            font-size: 15px;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        .hero-card {
            background: rgba(255, 255, 255, 0.96);
            border-radius: 24px;
            padding: 32px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
            backdrop-filter: blur(12px);
        }
        .hero-card-header {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .hero-card-header i {
            color: var(--accent);
        }
        .hero-card-body {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .hero-stat {
            background: var(--bg);
            border-radius: 14px;
            padding: 20px 16px;
            text-align: center;
        }
        .hero-stat .num {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 13px;
            color: var(--text-light);
            margin-top: 4px;
        }
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-content h1 {
                font-size: 36px;
            }
        }
        @media (max-width: 520px) {
            .hero {
                min-height: 540px;
                padding: 60px 0;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-content p {
                font-size: 15px;
            }
            .hero-card {
                padding: 24px;
            }
            .hero-card-body {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hero-stat .num {
                font-size: 24px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 90px 0;
        }
        .section-alt {
            background: var(--bg-deep);
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(30, 58, 95, 0.06);
            color: var(--primary);
            padding: 5px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
        }

        /* ===== 平台介绍 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .intro-image {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            position: relative;
        }
        .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .intro-image .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(to top, rgba(16, 29, 48, 0.8), transparent);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }
        .intro-text h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .intro-text p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
            margin-bottom: 20px;
        }
        .intro-points {
            list-style: none;
            padding: 0;
            margin: 24px 0;
        }
        .intro-points li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text);
        }
        .intro-points li i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 2px;
            flex-shrink: 0;
        }
        @media (max-width: 1024px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-image img {
                height: 320px;
            }
        }
        @media (max-width: 520px) {
            .intro-text h2 {
                font-size: 24px;
            }
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .category-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 58, 95, 0.2);
        }
        .category-card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .category-card:hover .category-card-img img {
            transform: scale(1.05);
        }
        .category-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(16, 29, 48, 0.4), transparent 60%);
        }
        .category-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .category-card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
        }
        .category-card-link {
            margin-top: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
        }
        .category-card-link i {
            transition: transform 0.3s ease;
        }
        .category-card-link:hover i {
            transform: translateX(4px);
        }
        .category-card .card-num {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(255, 255, 255, 0.92);
            border-radius: 8px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            z-index: 2;
        }
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 特色卡片 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(30, 58, 95, 0.08);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(30, 58, 95, 0.3);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 最新资讯列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: var(--transition);
            position: relative;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(30, 58, 95, 0.2);
        }
        .news-card .badge {
            align-self: flex-start;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
        }
        .news-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin: 4px 0;
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
        }
        .news-card .meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-light);
        }
        .news-card .meta i {
            color: var(--accent);
        }
        .empty-tip {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--text-light);
            font-size: 15px;
        }
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            counter-reset: step;
        }
        .step-card {
            position: relative;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 24px 24px;
            text-align: center;
            transition: var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-num {
            counter-increment: step;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 6px 16px rgba(30, 58, 95, 0.3);
            position: relative;
            z-index: 2;
        }
        .step-num::after {
            content: counter(step);
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .step-card::before {
            content: '';
            position: absolute;
            top: 50px;
            left: calc(50% + 30px);
            width: calc(100% - 30px);
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--border) 0px, var(--border) 6px, transparent 6px, transparent 12px);
        }
        .step-card:last-child::before {
            display: none;
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-card::before {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 内容推荐 ===== */
        .rec-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .rec-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .rec-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .rec-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .rec-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .rec-card:hover .rec-card-img img {
            transform: scale(1.05);
        }
        .rec-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #1e293b;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 700;
            z-index: 2;
        }
        .rec-card-body {
            padding: 24px;
        }
        .rec-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .rec-card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .rec-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-light);
        }
        @media (max-width: 1024px) {
            .rec-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .rec-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(30, 58, 95, 0.25);
        }
        .faq-item details {
            padding: 0;
        }
        .faq-item summary {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            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: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--text-light);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item details[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item details[open] summary {
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(120deg, #152741 0%, #1e3a5f 100%);
            color: #fff;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 50px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: var(--transition);
            font-size: 15px;
        }
        .btn-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-weight: 500;
            padding: 13px 30px;
            border-radius: 50px;
            transition: var(--transition);
            font-size: 15px;
        }
        .btn-ghost-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }
        @media (max-width: 520px) {
            .cta-inner h2 {
                font-size: 26px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #101d30;
            color: rgba(255, 255, 255, 0.7);
            padding-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo-text-footer {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: block;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        /* ===== 响应式通用 ===== */
        @media (max-width: 1024px) {
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                padding: 12px 22px;
                font-size: 14px;
            }
        }
        @media (max-width: 520px) {
            .section-header h2 {
                font-size: 24px;
            }
            .hero-card-body {
                grid-template-columns: 1fr 1fr;
            }
            .category-card-img {
                height: 160px;
            }
            .rec-card-img {
                height: 160px;
            }
        }

        /* ===== 焦点可访问性 ===== */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid rgba(245, 158, 11, 0.6);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category1 */
:root {
            --primary: #4F46E5;
            --secondary: #7C3AED;
            --accent: #06B6D4;
            --dark: #0F172A;
            --bg-light: #F8FAFC;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, Segoe UI, PingFang SC, Hiragino Sans GB, Microsoft YaHei, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input, textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* ===== Top Bar ===== */
        .top-bar {
            background: linear-gradient(90deg, #1E1B4B, #312E81, #4F46E5);
            color: rgba(255,255,255,0.9);
            font-size: 13px;
            padding: 8px 0;
            letter-spacing: 0.3px;
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .top-bar-left i {
            color: #A5B4FC;
        }

        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .top-bar-right span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.15);
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            color: #E0E7FF;
        }

        @media (max-width: 768px) {
            .top-bar-inner {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
            .top-bar-right span {
                font-size: 11px;
                padding: 2px 10px;
            }
        }

        /* ===== Main Nav ===== */
        .main-nav {
            background: #FFFFFF;
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.06);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, #4F46E5, #7C3AED);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .logo-text .accent-text {
            background: linear-gradient(135deg, #4F46E5, #06B6D4);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(79, 70, 229, 0.06);
        }

        .nav-link.active {
            color: #FFFFFF;
            background: linear-gradient(135deg, #4F46E5, #7C3AED);
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-nav {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            border: 2px solid transparent;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-nav-primary {
            background: linear-gradient(135deg, #4F46E5, #7C3AED);
            color: #fff;
            border: none;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
        }

        .btn-nav-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--dark);
            padding: 6px;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 4px;
            }
            .nav-link {
                padding: 6px 14px;
                font-size: 14px;
            }
            .logo-text {
                font-size: 17px;
            }
            .btn-nav {
                padding: 6px 14px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                padding: 16px 24px;
                box-shadow: 0 12px 24px rgba(0,0,0,0.1);
                border-bottom: 1px solid var(--border);
                gap: 8px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                display: block;
                padding: 12px 16px;
                width: 100%;
                text-align: center;
                border-radius: 12px;
            }
            .nav-link.active {
                background: linear-gradient(135deg, #4F46E5, #7C3AED);
            }
            .nav-cta {
                display: none;
            }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 64px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-color: var(--dark);
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 27, 75, 0.8));
            z-index: 1;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.3), transparent 60%);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(79, 70, 229, 0.3);
            border: 1px solid rgba(139, 92, 246, 0.4);
            color: #E0E7FF;
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }

        .page-banner h1 .gradient-text {
            background: linear-gradient(135deg, #A5B4FC, #06B6D4);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .banner-desc {
            font-size: 16px;
            color: rgba(226, 232, 240, 0.85);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .banner-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .banner-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #CBD5E1;
            font-size: 14px;
            background: rgba(255,255,255,0.1);
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .breadcrumb {
            position: relative;
            z-index: 2;
            margin-bottom: 24px;
            font-size: 13px;
            color: #94A3B8;
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .breadcrumb a {
            color: #94A3B8;
            transition: color 0.3s;
        }

        .breadcrumb a:hover {
            color: #A5B4FC;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 56px 0 48px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .banner-desc {
                font-size: 15px;
            }
            .banner-meta {
                gap: 10px;
            }
            .banner-meta-item {
                font-size: 12px;
                padding: 6px 12px;
            }
        }

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

        .section-light {
            background: #FFFFFF;
        }

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

        .section-dark {
            background: var(--dark);
        }

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

        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, rgba(79,70,229,0.1), rgba(6,182,212,0.1));
            border: 1px solid rgba(79,70,229,0.15);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .section-head p {
                font-size: 14px;
            }
        }

        /* ===== Play Method Cards ===== */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .method-card {
            background: #FFFFFF;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 32px 28px;
            box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
            transition: all 0.4s ease;
        }

        .method-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(79, 70, 229, 0.3);
        }

        .method-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #FFFFFF;
            margin-bottom: 20px;
        }

        .method-icon.blue {
            background: linear-gradient(135deg, #4F46E5, #6366F1);
        }

        .method-icon.purple {
            background: linear-gradient(135deg, #7C3AED, #A855F7);
        }

        .method-icon.cyan {
            background: linear-gradient(135deg, #06B6D4, #22D3EE);
        }

        .method-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .method-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .method-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .mini-tag {
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(79, 70, 229, 0.06);
            color: var(--primary);
            border: 1px solid rgba(79, 70, 229, 0.12);
            font-weight: 500;
            transition: all 0.3s;
        }

        .mini-tag:hover {
            background: rgba(79, 70, 229, 0.1);
            color: var(--dark);
        }

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

        @media (max-width: 640px) {
            .method-grid {
                grid-template-columns: 1fr;
            }
            .method-card {
                padding: 24px 20px;
            }
        }

        /* ===== Detail Image + Text ===== */
        .detail-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .detail-image {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            background: linear-gradient(135deg, #EEF2FF, #F5F3FF);
        }

        .detail-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .detail-image:hover img {
            transform: scale(1.03);
        }

        .detail-body h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .detail-body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 20px;
        }

        .feature-list {
            list-style: none;
            margin: 24px 0;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
            color: var(--text-main);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }

        .feature-list li:last-child {
            border-bottom: none;
        }

        .feature-list i {
            color: var(--primary);
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .detail-section {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .detail-image img {
                height: 320px;
            }
            .detail-body h3 {
                font-size: 24px;
            }
        }

        /* ===== Play Tabs / Steps ===== */
        .steps-wrapper {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 20px;
        }

        .step-card {
            background: #FFFFFF;
            border-radius: 20px;
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
            transition: all 0.4s ease;
            position: relative;
        }

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

        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #4F46E5, #7C3AED);
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
        }

        .step-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

        @media (max-width: 640px) {
            .steps-wrapper {
                grid-template-columns: 1fr;
            }
        }

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

        .play-card {
            background: #FFFFFF;
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
            transition: all 0.4s ease;
        }

        .play-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }

        .play-card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .play-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .play-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 42, 0.8);
            color: #F0FDFF;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.2);
        }

        .play-card-rate {
            position: absolute;
            top: 14px;
            right: 14px;
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(245, 158, 11, 0.95);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
        }

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

        .play-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .play-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px solid rgba(226, 232, 240, 0.6);
        }

        .card-footer .author {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s;
        }

        .card-link:hover {
            gap: 10px;
        }

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

        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Data Stats ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-box {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 32px 20px;
            text-align: center;
            transition: all 0.4s ease;
        }

        .stat-box:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: 38px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.2;
            margin-bottom: 8px;
            font-family: inherit;
        }

        .stat-num .unit {
            font-size: 20px;
            font-weight: 600;
            margin-left: 2px;
            opacity: 0.7;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            letter-spacing: 0.5px;
        }

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

        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-box {
                padding: 20px 16px;
            }
            .stat-num {
                font-size: 28px;
            }
        }

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

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 0.3s;
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
            border-color: rgba(79, 70, 229, 0.2);
        }

        .faq-question {
            padding: 20px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            transition: color 0.3s;
            user-select: none;
        }

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

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(79, 70, 229, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: all 0.4s;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #FFFFFF;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 28px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            border-top: 1px solid rgba(226, 232, 240, 0.5);
            padding-top: 16px;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 20px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 20px 20px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1E1B4B, #312E81, #4F46E5);
            padding: 80px 0;
            border-radius: 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.4), transparent 60%);
            border-radius: 50%;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.3), transparent 60%);
            border-radius: 50%;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .cta-content p {
            font-size: 15px;
            color: rgba(226, 232, 240, 0.8);
            margin-bottom: 32px;
            line-height: 1.9;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #FFFFFF;
            color: #4F46E5;
            font-size: 16px;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 999px;
            border: none;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 600;
            padding: 13px 30px;
            border-radius: 999px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }

        @media (max-width: 768px) {
            .cta-content h2 {
                font-size: 28px;
            }
            .btn-primary, .btn-outline {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

        /* ===== Content Grid ===== */
        .content-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .content-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .content-list li {
            padding: 18px 0;
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all 0.3s;
        }

        .content-list li:last-child {
            border-bottom: none;
        }

        .content-list .num {
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: linear-gradient(135deg, #4F46E5, #7C3AED);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .content-list h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
        }

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

        .content-img {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }

        .content-img img {
            width: 100%;
            height: 480px;
            object-fit: cover;
        }

        @media (max-width: 1024px) {
            .content-section {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .content-img img {
                height: 360px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0F172A;
            padding: 60px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo-text-footer {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            background: linear-gradient(135deg, #A5B4FC, #06B6D4);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            max-width: 400px;
            margin-bottom: 16px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: all 0.3s;
        }

        .footer-col ul li a:hover {
            color: #A5B4FC;
            padding-left: 4px;
        }

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.3);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        /* ===== Utility ===== */
        .btn-anchor {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            transition: gap 0.3s;
        }

        .btn-anchor:hover {
            gap: 12px;
        }

        .text-gradient {
            background: linear-gradient(135deg, #4F46E5, #06B6D4);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .divider {
            width: 56px;
            height: 4px;
            border-radius: 99px;
            background: linear-gradient(135deg, #4F46E5, #06B6D4);
            margin: 16px auto 0;
        }

        .divider-left {
            margin-left: 0;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }

/* roulang page: article */
:root {
    --primary: #6c5ce7;
    --primary-dark: #5a4bd1;
    --primary-light: #8b7cf7;
    --accent: #f59e0b;
    --bg: #f8f7ff;
    --bg-white: #ffffff;
    --bg-dark: #1a1526;
    --text: #1e1b2e;
    --text-muted: #6b7280;
    --text-light: #9ca3af;
    --border: #e5e0f0;
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow: 0 4px 20px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px; border-radius: 50px;
    font-size: 15px; font-weight: 600;
    cursor: pointer; transition: all .3s;
    border: 2px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(108,92,231,.35); }
.btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #1a1526; }
.btn-accent:hover { background: #fbbf24; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(245,158,11,.3); }
.btn-block { width: 100%; justify-content: center; }
.btn:focus-visible { outline: 3px solid rgba(108,92,231,.3); outline-offset: 2px; }

/* ===== Header ===== */
.site-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 100;
    box-shadow: 0 2px 12px rgba(0,0,0,0.03);
}
.top-bar {
    background: var(--bg-dark);
    color: rgba(255,255,255,.75);
    font-size: 13px;
    padding: 8px 0;
}
.top-bar-inner { display: flex; justify-content: space-between; align-items: center; }
.top-bar-domain { color: var(--accent); font-weight: 600; letter-spacing: 0.5px; }
.top-bar-domain i { margin-right: 4px; }
.top-bar-slogan { color: rgba(255,255,255,.5); font-size: 12px; }
.nav-container {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 16px; padding-bottom: 16px;
    gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
    width: 42px; height: 42px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 18px;
    box-shadow: 0 4px 12px rgba(108,92,231,.3);
}
.logo-text { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: 0.3px; }
.main-nav { display: flex; gap: 8px; margin-left: auto; }
.nav-link {
    padding: 8px 18px; border-radius: 50px;
    font-size: 15px; font-weight: 500; color: var(--text-muted);
    transition: all .25s;
}
.nav-link:hover { color: var(--primary); background: rgba(108,92,231,.08); }
.nav-link.active { color: #fff; background: var(--primary); box-shadow: 0 4px 12px rgba(108,92,231,.3); }
.nav-toggle {
    display: none; background: none; border: none;
    font-size: 22px; color: var(--text); cursor: pointer;
    padding: 8px; border-radius: 8px;
}
.nav-toggle:hover { background: rgba(0,0,0,.05); }
.nav-toggle:focus-visible { outline: 2px solid var(--primary); }

/* ===== Article Hero ===== */
.article-hero {
    position: relative;
    background-size: cover; background-position: center;
    padding: 72px 0 64px;
    color: #fff;
    overflow: hidden;
}
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(26,21,38,.9) 0%, rgba(108,92,231,.75) 100%);
}
.article-hero-inner { position: relative; z-index: 2; max-width: 860px; }
.breadcrumb {
    display: flex; align-items: center; gap: 8px;
    font-size: 14px; color: rgba(255,255,255,.7);
    margin-bottom: 20px;
}
.breadcrumb a { color: var(--accent); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: rgba(255,255,255,.35); }
.article-title {
    font-size: 34px; font-weight: 700; line-height: 1.3;
    margin-bottom: 16px;
    text-shadow: 0 2px 8px rgba(0,0,0,.2);
}
.article-desc { font-size: 16px; color: rgba(255,255,255,.8); margin-bottom: 24px; line-height: 1.7; }
.article-meta { display: flex; flex-wrap: wrap; gap: 12px; }
.meta-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(255,255,255,.15);
    backdrop-filter: blur(4px);
    padding: 6px 16px; border-radius: 50px;
    font-size: 13px; font-weight: 500;
    border: 1px solid rgba(255,255,255,.2);
}

/* ===== Article Body Section ===== */
.article-body-section { padding: 64px 0; }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 32px; align-items: start; }
.article-main { min-width: 0; }
.article-content-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.article-content { font-size: 16px; line-height: 1.85; color: #374151; word-break: break-word; }
.article-content h2 {
    font-size: 24px; font-weight: 700; color: var(--text);
    margin: 36px 0 16px;
    padding-left: 14px; border-left: 4px solid var(--primary);
}
.article-content h3 {
    font-size: 20px; font-weight: 600; color: var(--text);
    margin: 28px 0 12px;
}
.article-content p { margin: 16px 0; }
.article-content img {
    border-radius: var(--radius);
    margin: 24px 0;
    box-shadow: var(--shadow);
}
.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(108,92,231,.06);
    padding: 16px 20px; margin: 24px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-muted);
    font-style: italic;
}
.article-content ul, .article-content ol { padding-left: 24px; margin: 16px 0; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin: 8px 0; }
.article-content a { color: var(--primary); text-decoration: underline; }
.article-content table {
    width: 100%; border-collapse: collapse; margin: 24px 0;
    border: 1px solid var(--border);
}
.article-content th, .article-content td {
    padding: 12px 16px; border: 1px solid var(--border); text-align: left;
}
.article-content th { background: rgba(108,92,231,.08); font-weight: 600; }
.article-tags {
    display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
    margin-top: 32px; padding-top: 24px;
    border-top: 1px solid var(--border);
}
.tags-label { font-size: 14px; font-weight: 600; color: var(--text); }
.tag-pill {
    padding: 5px 16px; border-radius: 50px;
    background: rgba(108,92,231,.1); color: var(--primary);
    font-size: 13px; font-weight: 500;
    border: 1px solid rgba(108,92,231,.15);
}
.not-found {
    text-align: center; padding: 60px 40px;
}
.not-found-icon {
    font-size: 48px; color: var(--primary-light);
    margin-bottom: 20px;
}
.not-found h2 { font-size: 28px; margin-bottom: 12px; color: var(--text); }
.not-found p { color: var(--text-muted); margin-bottom: 24px; }

/* ===== Sidebar ===== */
.sidebar { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 120px; }
.sidebar-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.sidebar-title {
    font-size: 18px; font-weight: 600; color: var(--text);
    margin-bottom: 20px;
    display: flex; align-items: center; gap: 8px;
}
.sidebar-title i { color: var(--primary); }
.sidebar-list { display: flex; flex-direction: column; gap: 4px; }
.sidebar-list li a {
    display: flex; align-items: center; gap: 8px;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 15px; color: var(--text-muted);
    transition: all .2s;
}
.sidebar-list li a:hover {
    background: rgba(108,92,231,.08);
    color: var(--primary);
    padding-left: 18px;
}
.sidebar-list li a i { font-size: 12px; color: var(--primary-light); }
.sidebar-info-list { display: flex; flex-direction: column; gap: 16px; }
.sidebar-info-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.sidebar-info-item:last-child { border-bottom: none; }
.info-label { font-size: 14px; color: var(--text-muted); }
.info-value { font-size: 14px; font-weight: 600; color: var(--text); }
.sidebar-contact p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.6; }

/* ===== Share / Tags Section ===== */
.share-section { padding: 0 0 32px; }
.share-row {
    display: flex; justify-content: space-between; align-items: center;
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 20px 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    flex-wrap: wrap; gap: 16px;
}
.share-label { font-size: 15px; font-weight: 600; color: var(--text); }
.share-icons { display: flex; gap: 10px; }
.share-icon {
    width: 38px; height: 38px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: rgba(108,92,231,.1); color: var(--primary);
    font-size: 15px; transition: all .25s;
}
.share-icon:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* ===== Related Section ===== */
.related-section { padding: 64px 0; background: var(--bg-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-label { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; color: var(--accent); margin-bottom: 8px; }
.section-heading { font-size: 28px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.section-sub { font-size: 15px; color: var(--text-muted); margin-bottom: 32px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
    background: var(--bg);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all .3s;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.related-cover { height: 180px; background-size: cover; background-position: center; position: relative; }
.related-cover-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(26,21,38,.5), transparent); }
.related-card-body { padding: 24px; }
.related-card-tag {
    display: inline-block; padding: 4px 12px;
    background: rgba(108,92,231,.1); color: var(--primary);
    border-radius: 50px; font-size: 12px; font-weight: 600;
    margin-bottom: 12px;
}
.related-card-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.related-card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* ===== Stats Bar ===== */
.stats-section { padding: 40px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all .3s;
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.stat-number { font-size: 36px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.stat-label { font-size: 14px; color: var(--text-muted); margin-top: 8px; }

/* ===== FAQ Section ===== */
.faq-section { padding: 64px 0; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-item {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all .25s;
}
.faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow); }
.faq-q {
    display: flex; align-items: flex-start; gap: 12px;
    font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 10px;
}
.faq-q-icon { flex-shrink: 0; width: 24px; height: 24px; background: rgba(108,92,231,.12); color: var(--primary); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 12px; }
.faq-a { font-size: 14px; color: var(--text-muted); line-height: 1.7; padding-left: 36px; }

/* ===== CTA Section ===== */
.cta-section { padding-bottom: 64px; }
.cta-banner {
    position: relative;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover; background-position: center;
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    overflow: hidden;
    color: #fff;
}
.cta-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(108,92,231,.88), rgba(26,21,38,.9)); }
.cta-content { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; }
.cta-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.cta-text { font-size: 15px; color: rgba(255,255,255,.8); }

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,.7);
    padding: 64px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.logo-text-footer {
    display: inline-block;
    font-size: 22px; font-weight: 700; color: #fff;
    margin-bottom: 16px;
}
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.5); }
.footer-col h4 {
    font-size: 16px; font-weight: 600; color: #fff;
    margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 14px; color: rgba(255,255,255,.5); transition: all .2s; }
.footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,.35);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .article-grid { grid-template-columns: 1fr; }
    .sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
    .sidebar-card { flex: 1; min-width: 240px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .top-bar-slogan { display: none; }
    .nav-container { flex-wrap: wrap; }
    .main-nav {
        display: none; width: 100%;
        flex-direction: column; gap: 4px;
        padding: 16px 0;
        border-top: 1px solid var(--border);
    }
    .main-nav.open { display: flex; }
    .nav-toggle { display: block; }
    .nav-link { padding: 12px 16px; border-radius: 10px; width: 100%; text-align: center; }
    .article-hero { padding: 48px 0 40px; }
    .article-title { font-size: 26px; }
    .article-content-card { padding: 24px; }
    .cta-banner { padding: 40px 28px; }
    .faq-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .related-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .stat-card { padding: 20px 12px; }
    .stat-number { font-size: 28px; }
    .article-meta { gap: 8px; }
    .meta-badge { padding: 4px 12px; font-size: 12px; }
    .logo-text { font-size: 17px; }
    .logo-icon { width: 36px; height: 36px; font-size: 14px; }
}

/* roulang page: category3 */
/* ========== Design Variables ========== */
        :root {
            --primary: #4F46E5;
            --primary-dark: #4338CA;
            --primary-light: #818CF8;
            --accent: #F59E0B;
            --bg-light: #F8FAFC;
            --bg-dark: #0F172A;
            --text-primary: #0F172A;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius-card: 1rem;
            --radius-btn: 0.75rem;
            --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 32px rgba(79, 70, 229, 0.12);
            --transition: all 0.3s ease;
        }

        /* ========== Base Reset ========== */
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }

        /* ========== Container ========== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Top Bar ========== */
        .topbar {
            background: #0B1120;
            color: rgba(255, 255, 255, 0.72);
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .topbar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .topbar-domain {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topbar-domain i {
            color: var(--primary-light);
        }
        .topbar-tip {
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.02em;
        }

        /* ========== Main Header ========== */
        .main-header {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #4F46E5, #7C3AED);
            color: #fff;
            font-size: 18px;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }
        .logo-text-footer {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--border);
            color: var(--text-primary);
            font-size: 18px;
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: #F1F5F9;
        }
        .menu-toggle:focus-visible,
        .nav-link:focus-visible,
        .btn:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.35);
            outline-offset: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(79, 70, 229, 0.06);
        }
        .nav-link.active {
            color: var(--primary-dark);
            background: rgba(79, 70, 229, 0.1);
            font-weight: 600;
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 22px rgba(79, 70, 229, 0.3);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: #fff;
            transform: translateY(-1px);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background-size: cover;
            background-position: center;
            min-height: 560px;
            display: flex;
            align-items: center;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.7) 55%, rgba(79, 70, 229, 0.35) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 24px;
            max-width: 860px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #E0E7FF;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }
        .hero-content h1 {
            font-size: clamp(30px, 5vw, 48px);
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-content p {
            font-size: clamp(15px, 2vw, 18px);
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========== Section Layout ========== */
        .section {
            padding: 90px 0;
        }
        .section-head {
            max-width: 700px;
            margin: 0 auto 56px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3.4vw, 36px);
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 14px;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.7;
        }

        /* Section Dark */
        .section-dark {
            background: var(--bg-dark);
        }
        .section-dark .section-head h2 {
            color: #fff;
        }
        .section-dark .section-head p {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-dark .section-tag {
            background: rgba(255, 255, 255, 0.1);
            color: #A5B4FC;
        }

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

        .card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(79, 70, 229, 0.25);
        }
        .card-img {
            width: 64px;
            height: 64px;
            object-fit: cover;
            border-radius: 14px;
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
        }
        .card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .badge {
            display: inline-block;
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
        }

        /* ========== Steps ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 16px;
        }
        .step {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 32px 26px;
            transition: var(--transition);
            position: relative;
        }
        .step:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(165, 180, 252, 0.35);
            transform: translateY(-4px);
        }
        .step-num {
            font-size: 40px;
            font-weight: 800;
            color: rgba(99, 102, 241, 0.5);
            line-height: 1;
            margin-bottom: 20px;
            letter-spacing: -0.03em;
        }
        .step h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
        }

        /* ========== Stats ========== */
        .stats-section {
            background: linear-gradient(135deg, #1E1B4B 0%, #312E81 60%, #4F46E5 100%);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .stat {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .stat:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-3px);
        }
        .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 8px;
            letter-spacing: 0.04em;
        }

        /* ========== News Cards ========== */
        .news-card {
            display: flex;
            flex-direction: column;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(79, 70, 229, 0.25);
        }
        .news-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover img {
            transform: scale(1.03);
        }
        .news-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            flex-grow: 1;
        }
        .news-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 12px 0 10px;
            transition: var(--transition);
        }
        .news-card:hover .news-body h3 {
            color: var(--primary);
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-container {
            max-width: 860px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-list details {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 0 22px;
            box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
            transition: var(--transition);
            overflow: hidden;
        }
        .faq-list details:hover {
            border-color: rgba(79, 70, 229, 0.2);
        }
        .faq-list details[open] {
            border-color: rgba(79, 70, 229, 0.3);
            box-shadow: var(--shadow-card);
        }
        .faq-list summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            padding: 20px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            position: relative;
            list-style: none;
        }
        .faq-list summary::-webkit-details-marker {
            display: none;
        }
        .faq-list summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-list details[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-list details p {
            padding: 0 0 22px;
            margin: 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #EEF2FF, #E0E7FF, #C7D2FE);
        }
        .cta-inner {
            text-align: center;
            max-width: 720px;
        }
        .cta-inner h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .cta-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0B1120;
            color: #94A3B8;
            padding: 64px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 14px;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #A5B4FC;
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section {
                padding: 70px 0;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 20px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
                gap: 6px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 15px;
            }
            .header-inner {
                height: 64px;
            }
            .topbar-tip {
                display: none;
            }
            .grid-3 {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .grid-4,
            .grid-3,
            .steps-grid,
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero {
                min-height: 480px;
            }
            .hero-content {
                padding: 60px 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                justify-content: center;
            }
            .section {
                padding: 56px 0;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .logo-text {
                font-size: 18px;
            }
            .footer-bottom {
                padding: 18px 16px;
            }
        }

/* roulang page: category2 */
:root {
            --brand: #4f6ef7;
            --brand-dark: #3a55d1;
            --gold: #f0b90b;
            --gold-dark: #d4970a;
            --ink: #0f1128;
            --ink-light: #1a1d36;
            --ink-soft: #2a2e4a;
            --bg: #f5f7fb;
            --text: #1e2235;
            --text-weak: #6b7280;
            --border: #e5e9f2;
            --radius: 16px;
            --shadow: 0 8px 30px rgba(15, 17, 40, 0.08);
            --shadow-hover: 0 16px 40px rgba(15, 17, 40, 0.14);
            --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== 顶部信息条 ===== */
        .top-bar {
            background: var(--ink);
            color: rgba(255, 255, 255, 0.75);
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .top-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .top-bar-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .top-bar-item i {
            color: var(--gold);
        }
        .top-bar-links {
            display: flex;
            gap: 20px;
        }
        .top-bar-links a {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.25s;
        }
        .top-bar-links a:hover {
            color: #fff;
        }
        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(15, 17, 40, 0.04);
        }
        .main-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding-top: 14px;
            padding-bottom: 14px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-badge {
            background: linear-gradient(135deg, var(--brand), #6b8aff);
            color: #fff;
            font-weight: 800;
            font-size: 14px;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 14px rgba(79, 110, 247, 0.35);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 10px 16px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            transition: all 0.25s ease;
            position: relative;
        }
        .nav-link:hover {
            color: var(--brand);
            background: #eef2ff;
        }
        .nav-link.active {
            color: var(--brand);
            background: linear-gradient(135deg, rgba(79, 110, 247, 0.12), rgba(79, 110, 247, 0.05));
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 4px;
            background: var(--brand);
        }
        .header-cta {
            padding: 10px 22px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand), var(--brand-dark));
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 16px rgba(79, 110, 247, 0.3);
            transition: all 0.25s;
            flex-shrink: 0;
        }
        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(79, 110, 247, 0.4);
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg);
            color: var(--ink);
            font-size: 20px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .mobile-toggle:focus {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }
        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 96px 0 88px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(15, 17, 40, 0.94) 30%, rgba(15, 17, 40, 0.62) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(240, 185, 11, 0.15);
            border: 1px solid rgba(240, 185, 11, 0.4);
            color: #fcd34d;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .hero-title {
            font-size: 44px;
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .hero-title span {
            color: var(--gold);
        }
        .hero-desc {
            color: rgba(255, 255, 255, 0.78);
            font-size: 16px;
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--brand), var(--brand-dark));
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            box-shadow: 0 6px 20px rgba(79, 110, 247, 0.35);
            transition: all 0.25s;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(79, 110, 247, 0.45);
        }
        .btn-ghost-white {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            font-weight: 500;
            font-size: 15px;
            transition: all 0.25s;
            background: rgba(255, 255, 255, 0.06);
        }
        .btn-ghost-white:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.6);
        }
        .hero-panel {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 20px;
            padding: 28px;
            backdrop-filter: blur(10px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
        }
        .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            margin-bottom: 18px;
        }
        .panel-header .label {
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .panel-header .label i {
            color: var(--gold);
        }
        .live-dot {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: #86efac;
            background: rgba(34, 197, 94, 0.15);
            padding: 4px 10px;
            border-radius: 999px;
        }
        .live-dot::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #22c55e;
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }
        .panel-stats {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 12px;
            margin-bottom: 20px;
        }
        .panel-stat {
            background: rgba(255, 255, 255, 0.07);
            border-radius: 14px;
            padding: 14px 10px;
            text-align: center;
        }
        .panel-stat .num {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }
        .panel-stat .num em {
            font-style: normal;
            color: var(--gold);
            font-size: 16px;
        }
        .panel-stat .txt {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
        }
        .panel-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .panel-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            padding: 12px 14px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }
        .panel-item span:last-child {
            font-size: 12px;
            color: var(--gold);
            font-weight: 600;
        }
        /* ===== 通用板块 ===== */
        .section {
            padding: 84px 0;
        }
        .section-alt {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--brand);
            background: #eef2ff;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
        }
        /* ===== 概览数据 ===== */
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .overview-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all 0.25s;
        }
        .overview-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .overview-card .icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, #eef2ff, #e0e7ff);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 16px;
        }
        .overview-card .number {
            font-size: 34px;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.2;
        }
        .overview-card .number small {
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 500;
        }
        .overview-card .name {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 6px;
        }
        /* ===== 专题卡片 ===== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .topic-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .topic-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .topic-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .topic-card:hover .topic-cover img {
            transform: scale(1.05);
        }
        .topic-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 17, 40, 0.35));
        }
        .topic-tag {
            position: absolute;
            left: 16px;
            top: 16px;
            z-index: 2;
            background: rgba(15, 17, 40, 0.7);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
        }
        .topic-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .topic-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
        }
        .topic-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-weak);
        }
        .topic-meta a {
            color: var(--brand);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        /* ===== 流程区 ===== */
        .process-section {
            background: var(--ink);
            color: #fff;
        }
        .process-section .section-title {
            color: #fff;
        }
        .process-section .section-sub {
            color: rgba(255, 255, 255, 0.65);
        }
        .process-section .section-tag {
            background: rgba(240, 185, 11, 0.12);
            color: var(--gold);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            margin-top: 20px;
        }
        .process-step {
            position: relative;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 28px 20px;
            text-align: center;
            transition: all 0.3s;
        }
        .process-step:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .step-num {
            font-size: 12px;
            font-weight: 800;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .step-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(79, 110, 247, 0.3), rgba(79, 110, 247, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin: 0 auto 14px;
            color: #fff;
        }
        .process-step h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
        }
        .step-arrow {
            position: absolute;
            right: -16px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.25);
            font-size: 14px;
            z-index: 2;
        }
        /* ===== 技巧榜 ===== */
        .tips-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
            align-items: center;
        }
        .tips-image {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }
        .tips-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .tips-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .tip-item {
            display: flex;
            gap: 16px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 20px;
            box-shadow: var(--shadow);
            transition: all 0.25s;
        }
        .tip-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .tip-rank {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--gold), #f59e0b);
            color: #fff;
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .tip-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .tip-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: all 0.25s;
        }
        .faq-item:hover {
            border-color: #c7d2fe;
            box-shadow: var(--shadow);
        }
        .faq-q {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            gap: 16px;
        }
        .faq-q i {
            color: var(--brand);
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-a-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            margin: 0 24px 0;
            padding-top: 16px;
            padding-left: 0;
            padding-right: 0;
        }
        /* ===== CTA ===== */
        .cta-section {
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 88px 0;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 17, 40, 0.92), rgba(26, 29, 54, 0.85));
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--gold), #f59e0b);
            color: var(--ink);
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 6px 20px rgba(240, 185, 11, 0.35);
            transition: all 0.25s;
        }
        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(240, 185, 11, 0.45);
        }
        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.25s;
            background: rgba(255, 255, 255, 0.06);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink-light);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo-text-footer {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: block;
            margin-bottom: 12px;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.25s;
        }
        .footer-col a:hover {
            color: var(--gold);
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-title {
                font-size: 36px;
            }
            .overview-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(3, 1fr);
            }
            .step-arrow {
                display: none;
            }
            .tips-layout {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .top-bar-links {
                display: none;
            }
            .main-nav {
                position: fixed;
                top: 0;
                right: -320px;
                width: 280px;
                height: 100vh;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 80px 24px 24px;
                box-shadow: -10px 0 40px rgba(15, 17, 40, 0.15);
                transition: right 0.35s ease;
                z-index: 1000;
                gap: 4px;
            }
            .main-nav.open {
                right: 0;
            }
            .main-nav .nav-link {
                padding: 14px 16px;
                font-size: 16px;
                border-radius: 12px;
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 30px;
            }
            .overview-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .hero-title {
                font-size: 26px;
            }
            .overview-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions,
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn-primary,
            .btn-ghost-white,
            .btn-gold,
            .btn-outline-white {
                width: 100%;
                justify-content: center;
            }
            .panel-stats {
                grid-template-columns: 1fr 1fr 1fr;
            }
            .logo-text {
                font-size: 17px;
            }
        }
        /* ===== 移动遮罩 ===== */
        .nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 17, 40, 0.5);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
            backdrop-filter: blur(2px);
        }
        .nav-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }