/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1b3d;
            --primary-light: #1a2d6b;
            --primary-dark: #0a1229;
            --accent: #d4a84b;
            --accent-light: #e8c06a;
            --accent-dark: #b8892e;
            --bg: #f8f7f4;
            --bg-card: #ffffff;
            --bg-dark: #0f1b3d;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-white: #f1f1f1;
            --border: #e5e0d6;
            --border-light: #f0ece6;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(15, 27, 61, 0.08);
            --shadow-hover: 0 12px 40px rgba(15, 27, 61, 0.14);
            --shadow-accent: 0 4px 20px rgba(212, 168, 75, 0.3);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --spacer: 5rem;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding-left: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
        }
        p {
            margin-bottom: 0.5rem;
        }

        /* ===== Container ===== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== 导航 ===== */
        .navbar-main {
            background: var(--bg-dark);
            padding: 0.75rem 0;
            border-bottom: 2px solid var(--accent);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--transition);
        }
        .navbar-main .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent) !important;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .navbar-main .navbar-brand i {
            font-size: 1.8rem;
            color: var(--accent);
        }
        .navbar-main .navbar-brand:hover {
            color: var(--accent-light) !important;
        }
        .navbar-main .nav-link {
            color: rgba(255, 255, 255, 0.8) !important;
            font-weight: 500;
            padding: 0.5rem 1.1rem !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
        }
        .navbar-main .nav-link:hover,
        .navbar-main .nav-link:focus {
            color: var(--accent) !important;
            background: rgba(212, 168, 75, 0.08);
        }
        .navbar-main .nav-link.active {
            color: var(--accent) !important;
            background: rgba(212, 168, 75, 0.12);
        }
        .navbar-main .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 1.1rem;
            right: 1.1rem;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .navbar-main .navbar-toggler {
            border-color: rgba(212, 168, 75, 0.4);
            color: var(--accent);
            padding: 0.4rem 0.6rem;
        }
        .navbar-main .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(212, 168, 75, 0.25);
        }

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 5rem 0 4.5rem;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(212, 168, 75, 0.1) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 30%, rgba(255, 255, 255, 0.04) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(212, 168, 75, 0.15);
            color: var(--accent-light);
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(212, 168, 75, 0.2);
            margin-bottom: 1.5rem;
        }
        .hero-section h1 {
            font-size: 2.8rem;
            font-weight: 900;
            color: #ffffff;
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .hero-section h1 .highlight {
            color: var(--accent);
        }
        .hero-section .hero-sub {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 1.2rem 0 2rem;
            line-height: 1.7;
        }
        .hero-section .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.5rem;
            font-size: 1.05rem;
            font-weight: 700;
            border-radius: 60px;
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            transition: var(--transition);
            box-shadow: var(--shadow-accent);
        }
        .hero-section .btn-hero:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(212, 168, 75, 0.4);
            color: var(--primary-dark);
        }
        .hero-section .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.5rem;
            font-size: 1.05rem;
            font-weight: 600;
            border-radius: 60px;
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            transition: var(--transition);
        }
        .hero-section .btn-hero-outline:hover {
            background: rgba(212, 168, 75, 0.1);
            color: var(--accent-light);
            border-color: var(--accent-light);
        }
        .hero-section .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-section .hero-stats .stat-item {
            color: rgba(255, 255, 255, 0.8);
        }
        .hero-section .hero-stats .stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }
        .hero-section .hero-stats .stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .hero-section .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-section .hero-visual .visual-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 2rem 2.5rem;
            text-align: center;
            max-width: 360px;
            width: 100%;
        }
        .hero-section .hero-visual .visual-card .icon-circle {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(212, 168, 75, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            font-size: 2.2rem;
            color: var(--accent);
        }
        .hero-section .hero-visual .visual-card h4 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .hero-section .hero-visual .visual-card p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: var(--spacer) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 650px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
        }
        .section-divider {
            width: 50px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 0.75rem 0 1.5rem;
        }
        .section-divider.center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 特色服务卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 2rem 1.8rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .feature-card .icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: rgba(212, 168, 75, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            font-size: 1.6rem;
            color: var(--accent);
            transition: var(--transition);
        }
        .feature-card:hover .icon-wrap {
            background: var(--accent);
            color: #fff;
        }
        .feature-card h5 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== 分类入口卡片 ===== */
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 2rem 1.8rem;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            opacity: 0;
            transition: var(--transition);
        }
        .category-card:hover::before {
            opacity: 1;
        }
        .category-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .category-card .cat-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(212, 168, 75, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .category-card h5 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .category-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .category-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 0.8rem;
            font-size: 0.9rem;
        }
        .category-card .cat-link i {
            transition: var(--transition);
            font-size: 0.8rem;
        }
        .category-card .cat-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 资讯列表 ===== */
        .post-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 1.5rem 1.8rem;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .post-card .post-category {
            display: inline-block;
            background: rgba(212, 168, 75, 0.12);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.9rem;
            border-radius: 50px;
            margin-bottom: 0.8rem;
            align-self: flex-start;
        }
        .post-card .post-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .post-card .post-title a {
            color: inherit;
        }
        .post-card .post-title a:hover {
            color: var(--accent);
        }
        .post-card .post-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .post-card .post-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 1rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            padding-top: 0.8rem;
            border-top: 1px solid var(--border-light);
        }
        .post-card .post-meta i {
            margin-right: 0.3rem;
        }
        .post-empty {
            text-align: center;
            padding: 2rem;
            color: var(--text-light);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--bg-dark);
            padding: 4.5rem 0;
        }
        .stats-section .stat-card {
            text-align: center;
            padding: 1.5rem 1rem;
        }
        .stats-section .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
        }
        .stats-section .stat-card .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 0.4rem;
        }
        .stats-section .stat-card .stat-icon {
            font-size: 1.8rem;
            color: rgba(212, 168, 75, 0.3);
            margin-bottom: 0.8rem;
        }

        /* ===== 注册流程 ===== */
        .step-card {
            text-align: center;
            padding: 1.5rem 1.2rem;
            position: relative;
        }
        .step-card .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 12px rgba(212, 168, 75, 0.3);
        }
        .step-card h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .step-card p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .step-connector {
            display: none;
        }
        @media (min-width: 768px) {
            .step-connector {
                display: flex;
                align-items: center;
                justify-content: center;
                color: var(--accent);
                font-size: 1.2rem;
                opacity: 0.4;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-item .faq-question {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            color: var(--accent);
        }
        .faq-item .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 0.85rem;
        }
        .faq-item .faq-answer {
            padding: 0 1.5rem 1.1rem;
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-answer.show {
            display: block;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(212, 168, 75, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0.8rem auto 2rem;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.9rem 2.8rem;
            font-size: 1.05rem;
            font-weight: 700;
            border-radius: 60px;
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            transition: var(--transition);
            box-shadow: var(--shadow-accent);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(212, 168, 75, 0.4);
            color: var(--primary-dark);
        }
        .cta-section .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.9rem 2.8rem;
            font-size: 1.05rem;
            font-weight: 600;
            border-radius: 60px;
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            transition: var(--transition);
        }
        .cta-section .btn-cta-outline:hover {
            background: rgba(212, 168, 75, 0.1);
            color: var(--accent-light);
            border-color: var(--accent-light);
        }

        /* ===== 页脚 ===== */
        .footer-main {
            background: var(--primary-dark);
            padding: 3.5rem 0 1.5rem;
            border-top: 3px solid var(--accent);
        }
        .footer-main .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.8rem;
        }
        .footer-main .footer-brand i {
            font-size: 1.6rem;
        }
        .footer-main .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-main h6 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }
        .footer-main .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            padding: 0.25rem 0;
            transition: var(--transition);
        }
        .footer-main .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-main .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-main .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-main .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 标签 ===== */
        .tag-badge {
            display: inline-block;
            background: rgba(212, 168, 75, 0.12);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.9rem;
            border-radius: 50px;
            margin: 0.2rem 0.3rem;
            border: 1px solid rgba(212, 168, 75, 0.15);
            transition: var(--transition);
        }
        .tag-badge:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --spacer: 4rem;
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
            .hero-section .hero-sub {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacer: 3rem;
            }
            .hero-section {
                padding: 3.5rem 0 3rem;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .hero-section .hero-stats {
                gap: 1.2rem;
            }
            .hero-section .hero-stats .stat-item .num {
                font-size: 1.4rem;
            }
            .hero-section .hero-visual .visual-card {
                padding: 1.5rem;
                max-width: 100%;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .stats-section .stat-card .stat-number {
                font-size: 2rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-main .footer-brand {
                font-size: 1.2rem;
            }
            .navbar-main .navbar-brand {
                font-size: 1.2rem;
            }
            .navbar-main .navbar-brand i {
                font-size: 1.4rem;
            }
            .step-connector {
                display: none !important;
            }
        }
        @media (max-width: 520px) {
            :root {
                --spacer: 2.5rem;
            }
            .hero-section h1 {
                font-size: 1.5rem;
            }
            .hero-section .hero-sub {
                font-size: 0.9rem;
            }
            .hero-section .btn-hero,
            .hero-section .btn-hero-outline {
                padding: 0.7rem 1.8rem;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
            }
            .hero-section .hero-stats {
                flex-direction: column;
                gap: 0.8rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .feature-card {
                padding: 1.5rem 1.2rem;
            }
            .category-card {
                padding: 1.5rem 1.2rem;
            }
            .post-card {
                padding: 1.2rem 1.2rem;
            }
            .stats-section .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section .btn-cta,
            .cta-section .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }
            .footer-main {
                padding: 2.5rem 0 1rem;
            }
            .faq-item .faq-question {
                font-size: 0.9rem;
                padding: 1rem 1.2rem;
            }
            .faq-item .faq-answer {
                padding: 0 1.2rem 1rem;
                font-size: 0.88rem;
            }
            .container-custom {
                padding: 0 1rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-accent {
            color: var(--accent);
        }
        .bg-accent-soft {
            background: rgba(212, 168, 75, 0.06);
        }
        .rounded-custom {
            border-radius: var(--radius);
        }
        .shadow-custom {
            box-shadow: var(--shadow);
        }
        .shadow-custom-hover:hover {
            box-shadow: var(--shadow-hover);
        }
        .gap-grid {
            gap: 1.5rem;
        }

        /* 按钮 focus 轮廓 */
        .btn:focus-visible,
        .navbar-toggler:focus-visible,
        .faq-question:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a2a6c;
            --color-primary-light: #2d4a8e;
            --color-primary-dark: #0f1a4a;
            --color-accent: #e63946;
            --color-accent-light: #ff6b6b;
            --color-bg: #f8f9fc;
            --color-bg-alt: #ffffff;
            --color-bg-dark: #0f1a4a;
            --color-text: #1a1a2e;
            --color-text-light: #6c757d;
            --color-text-white: #ffffff;
            --color-border: #e2e8f0;
            --color-border-light: #f0f2f5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --spacer-section: 5rem;
            --spacer-section-mobile: 3rem;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== 导航 ===== */
        .navbar-main {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            padding: 0.6rem 0;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .navbar-main .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0;
        }
        .navbar-main .navbar-brand i {
            color: var(--color-accent);
            font-size: 1.6rem;
        }
        .navbar-main .navbar-brand:hover {
            color: var(--color-primary-dark);
        }
        .navbar-main .nav-link {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-main .nav-link:hover {
            color: var(--color-primary-light);
            background: rgba(26, 42, 108, 0.04);
        }
        .navbar-main .nav-link.active {
            color: var(--color-accent) !important;
            background: rgba(230, 57, 70, 0.06);
        }
        .navbar-main .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 1rem;
            right: 1rem;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }
        .navbar-toggler {
            border: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            padding: 0.25rem 0.5rem;
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler:hover {
            color: var(--color-accent);
        }

        /* ===== 页面标题区 ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
            padding: 4rem 0 3.5rem;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container-custom {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-weight: 800;
            font-size: 2.8rem;
            color: #ffffff;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            line-height: 1.2;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin-bottom: 0;
        }
        .page-hero .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 1.2rem;
            padding: 0;
            list-style: none;
        }
        .page-hero .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            transition: var(--transition);
        }
        .page-hero .breadcrumb-custom a:hover {
            color: #ffffff;
        }
        .page-hero .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.35);
        }
        .page-hero .breadcrumb-custom .current {
            color: var(--color-accent-light);
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: var(--spacer-section) 0;
        }
        .section-block.bg-white {
            background: var(--color-bg-alt);
        }
        .section-block.bg-light {
            background: var(--color-bg);
        }
        .section-block.bg-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-white);
        }
        .section-title {
            font-weight: 800;
            font-size: 2.2rem;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            line-height: 1.25;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-light);
            max-width: 600px;
            margin-bottom: 2.5rem;
        }
        .section-block.bg-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.6);
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 4px;
            margin: 0.5rem 0 1.5rem;
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .card-custom .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--color-accent);
            background: rgba(230, 57, 70, 0.08);
            margin-bottom: 1.2rem;
            transition: var(--transition);
        }
        .card-custom:hover .card-icon {
            background: var(--color-accent);
            color: #ffffff;
        }
        .card-custom h5 {
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 0.6rem;
        }
        .card-custom p {
            font-size: 0.95rem;
            color: var(--color-text-light);
            margin-bottom: 0;
        }

        /* ===== 步骤卡片 ===== */
        .step-card {
            display: flex;
            gap: 1.5rem;
            background: var(--color-bg-alt);
            border-radius: var(--radius-md);
            padding: 2rem 1.8rem;
            border: 1px solid var(--color-border);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .step-card .step-num {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #ffffff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-card .step-body h5 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
        }
        .step-card .step-body p {
            color: var(--color-text-light);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .step-card .step-body .step-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--color-accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.15rem 0.7rem;
            border-radius: 20px;
            margin-top: 0.5rem;
        }

        /* ===== 徽章/标签 ===== */
        .badge-custom {
            display: inline-block;
            padding: 0.25rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 20px;
            background: rgba(26, 42, 108, 0.06);
            color: var(--color-primary-light);
            border: 1px solid rgba(26, 42, 108, 0.1);
            transition: var(--transition);
        }
        .badge-custom:hover {
            background: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
        }

        /* ===== 资讯列表 ===== */
        .news-list .news-item {
            display: flex;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: var(--transition);
        }
        .news-list .news-item:last-child {
            border-bottom: none;
        }
        .news-list .news-item:hover {
            padding-left: 0.5rem;
        }
        .news-list .news-date {
            flex-shrink: 0;
            width: 80px;
            text-align: center;
            background: rgba(26, 42, 108, 0.04);
            border-radius: var(--radius-sm);
            padding: 0.4rem 0;
            align-self: flex-start;
        }
        .news-list .news-date .day {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .news-list .news-date .mon {
            font-size: 0.75rem;
            color: var(--color-text-light);
        }
        .news-list .news-content h6 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.2rem;
        }
        .news-list .news-content p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-bottom: 0;
        }
        .news-list .news-content .news-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--color-accent);
            background: rgba(230, 57, 70, 0.06);
            padding: 0.1rem 0.6rem;
            border-radius: 12px;
            margin-top: 0.3rem;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 0.8rem;
            overflow: hidden;
            background: var(--color-bg-alt);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-primary-light);
        }
        .faq-item .faq-q {
            padding: 1.2rem 1.5rem;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--color-text);
            transition: var(--transition);
        }
        .faq-item .faq-q:hover {
            color: var(--color-primary-light);
        }
        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--color-text-light);
            font-size: 0.9rem;
        }
        .faq-item .faq-q[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-item .faq-a {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 70%, var(--color-primary-light) 100%);
            padding: 4rem 0;
            border-radius: var(--radius-lg);
            margin: 2rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 0 1.5rem;
        }
        .cta-section h3 {
            font-weight: 800;
            font-size: 2rem;
            color: #ffffff;
            margin-bottom: 0.6rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 1.8rem;
        }
        .btn-cta {
            display: inline-block;
            padding: 0.9rem 2.8rem;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 50px;
            background: var(--color-accent);
            color: #ffffff;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.3);
        }
        .btn-cta:hover {
            background: var(--color-accent-light);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.4);
        }
        .btn-cta:focus {
            outline: 3px solid rgba(230, 57, 70, 0.4);
            outline-offset: 2px;
        }

        .btn-outline-cta {
            display: inline-block;
            padding: 0.7rem 2rem;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 50px;
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            transition: var(--transition);
        }
        .btn-outline-cta:hover {
            background: var(--color-primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* ===== 数据统计条 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            text-align: center;
        }
        .stat-item .stat-number {
            font-weight: 900;
            font-size: 2.5rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 0.2rem;
        }
        .stat-item .stat-icon {
            font-size: 1.8rem;
            color: var(--color-accent);
            margin-bottom: 0.4rem;
            opacity: 0.7;
        }

        /* ===== 注意事项 ===== */
        .note-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .note-list li {
            display: flex;
            gap: 0.8rem;
            padding: 0.6rem 0;
            font-size: 0.95rem;
            color: var(--color-text);
            align-items: flex-start;
        }
        .note-list li i {
            color: var(--color-accent);
            font-size: 1rem;
            margin-top: 0.25rem;
            flex-shrink: 0;
        }

        /* ===== 页脚 ===== */
        .footer-main {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 4rem 0 2rem;
            margin-top: 3rem;
        }
        .footer-main .footer-brand {
            font-weight: 800;
            font-size: 1.6rem;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.8rem;
        }
        .footer-main .footer-brand i {
            color: var(--color-accent);
        }
        .footer-main .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-main h6 {
            font-weight: 700;
            font-size: 0.95rem;
            color: #ffffff;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-main .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }
        .footer-main .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-main .footer-links a:hover {
            color: #ffffff;
            padding-left: 4px;
        }
        .footer-main .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            margin-top: 2rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
        }
        .footer-main .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-main .footer-bottom a:hover {
            color: #ffffff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.9rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacer-section: 3rem;
            }
            .container-custom {
                padding: 0 1rem;
            }
            .page-hero {
                padding: 2.8rem 0 2.4rem;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 1.8rem;
            }
            .step-card {
                flex-direction: column;
                gap: 0.8rem;
                padding: 1.5rem;
            }
            .step-card .step-num {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .news-list .news-item {
                flex-direction: column;
                gap: 0.6rem;
            }
            .news-list .news-date {
                width: auto;
                display: flex;
                gap: 0.5rem;
                align-items: center;
                padding: 0.3rem 0.8rem;
            }
            .news-list .news-date .day {
                font-size: 1rem;
            }
            .cta-section {
                padding: 2.8rem 1rem;
                border-radius: var(--radius-md);
            }
            .cta-section h3 {
                font-size: 1.5rem;
            }
            .btn-cta {
                padding: 0.8rem 2rem;
                font-size: 0.95rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .footer-main {
                padding: 2.5rem 0 1.5rem;
            }
            .footer-main .footer-brand {
                font-size: 1.3rem;
            }
            .navbar-main .navbar-brand {
                font-size: 1.25rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .card-custom {
                padding: 1.3rem 1rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .stat-item .stat-number {
                font-size: 1.7rem;
            }
            .faq-item .faq-q {
                font-size: 0.92rem;
                padding: 1rem 1.2rem;
            }
            .faq-item .faq-a {
                padding: 0 1.2rem 1rem;
                font-size: 0.9rem;
            }
        }

        /* ===== 辅助 ===== */
        .mb-gap {
            margin-bottom: 2rem;
        }
        .text-accent {
            color: var(--color-accent);
        }
        .text-primary-custom {
            color: var(--color-primary);
        }
        .bg-accent-soft {
            background: rgba(230, 57, 70, 0.04);
        }
        .rounded-custom {
            border-radius: var(--radius-md);
        }
        .shadow-custom {
            box-shadow: var(--shadow-md);
        }

        /* 回到顶部 */
        .back-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-md);
            border: none;
            transition: var(--transition);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
        }
        .back-top.show {
            opacity: 1;
            pointer-events: auto;
        }
        .back-top:hover {
            background: var(--color-accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            color: #ffffff;
        }
        .back-top:focus {
            outline: 3px solid rgba(230, 57, 70, 0.4);
            outline-offset: 2px;
        }

/* roulang page: category2 */
:root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --accent: #e8453c;
            --accent-hover: #d63a31;
            --accent-light: #fde8e6;
            --bg-light: #f8f9fc;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #3d3d5c;
            --text-muted: #7a7a9a;
            --border-light: #e8eaf0;
            --border-radius: 14px;
            --border-radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.25s ease;
            --nav-height: 72px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width:768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .navbar-main {
            background: #ffffff;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            padding: 0;
            min-height: var(--nav-height);
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-main .navbar-brand {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 0;
        }
        .navbar-main .navbar-brand i {
            color: var(--accent);
            font-size: 1.8rem;
        }
        .navbar-main .navbar-brand:hover {
            color: var(--primary);
        }
        .navbar-main .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 8px 18px !important;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-main .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.04);
        }
        .navbar-main .nav-link.active {
            color: #ffffff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.20);
        }
        .navbar-main .nav-link.active:hover {
            color: #ffffff;
            background: var(--primary-light);
        }
        .navbar-toggler {
            border: none;
            padding: 8px 12px;
            font-size: 1.4rem;
            color: var(--primary);
            background: transparent;
            border-radius: var(--border-radius-sm);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        @media (max-width:991.98px) {
            .navbar-main .navbar-nav {
                padding: 16px 0 20px;
            }
            .navbar-main .nav-link {
                padding: 10px 16px !important;
                font-size: 1rem;
            }
        }

        /* ===== 页面标题区 ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 60px 0 56px;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .page-hero .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .page-hero .hero-sub {
            font-size: 1.15rem;
            opacity: 0.85;
            max-width: 700px;
            margin-bottom: 0;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            padding: 4px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
            border: 1px solid rgba(255, 255, 255, 0.10);
        }
        @media (max-width:768px) {
            .page-hero {
                padding: 44px 0 40px;
            }
            .page-hero .hero-title {
                font-size: 1.8rem;
            }
            .page-hero .hero-sub {
                font-size: 1rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 72px 0;
        }
        .section-block.alt-bg {
            background: #ffffff;
        }
        .section-block .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-block .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 40px;
        }
        .section-block .section-desc.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-block .section-title.center {
            text-align: center;
        }
        @media (max-width:768px) {
            .section-block {
                padding: 48px 0;
            }
            .section-block .section-title {
                font-size: 1.6rem;
            }
        }

        /* ===== 卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(26, 42, 108, 0.12);
        }
        .feature-card .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #ffffff;
            margin-bottom: 18px;
            background: var(--primary);
        }
        .feature-card .card-icon.accent {
            background: var(--accent);
        }
        .feature-card .card-icon.teal {
            background: #0d9488;
        }
        .feature-card .card-icon.amber {
            background: #d97706;
        }
        .feature-card .card-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .feature-card .card-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .feature-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 40px;
            background: var(--accent-light);
            color: var(--accent);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        /* ===== 图文列表 ===== */
        .list-item-row {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .list-item-row:last-child {
            border-bottom: none;
        }
        .list-item-row .item-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.25;
            min-width: 48px;
            line-height: 1;
        }
        .list-item-row .item-content h5 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .list-item-row .item-content p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 数据统计 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: #ffffff;
            border-radius: var(--border-radius);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(26, 42, 108, 0.10);
        }
        .stat-item .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-num .plus {
            color: var(--accent);
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        @media (max-width:768px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-num {
                font-size: 1.8rem;
            }
        }
        @media (max-width:480px) {
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ===== 优势亮点 ===== */
        .highlight-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .highlight-item {
            background: #ffffff;
            border-radius: var(--border-radius);
            padding: 24px 28px;
            border: 1px solid var(--border-light);
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: var(--transition);
        }
        .highlight-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(26, 42, 108, 0.12);
        }
        .highlight-item .hl-icon {
            font-size: 1.6rem;
            color: var(--accent);
            min-width: 40px;
            margin-top: 2px;
        }
        .highlight-item .hl-content h5 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .highlight-item .hl-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        @media (max-width:768px) {
            .highlight-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .highlight-item {
                padding: 20px;
            }
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #ffffff;
            border-radius: var(--border-radius);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(26, 42, 108, 0.12);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:focus {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            border-radius: var(--border-radius);
            padding: 52px 48px;
            color: #ffffff;
            text-align: center;
        }
        .cta-block .cta-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .cta-block .cta-desc {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-block .btn-cta {
            background: #ffffff;
            color: var(--primary);
            border: none;
            padding: 14px 44px;
            border-radius: 60px;
            font-size: 1.05rem;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }
        .cta-block .btn-cta:hover {
            background: var(--accent-light);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.20);
        }
        .cta-block .btn-cta:focus {
            outline: 3px solid rgba(255, 255, 255, 0.6);
            outline-offset: 4px;
        }
        @media (max-width:768px) {
            .cta-block {
                padding: 36px 24px;
            }
            .cta-block .cta-title {
                font-size: 1.4rem;
            }
            .cta-block .btn-cta {
                padding: 12px 32px;
                font-size: 0.95rem;
            }
        }

        /* ===== 页脚 ===== */
        .footer-main {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 0;
            font-size: 0.92rem;
        }
        .footer-main .footer-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        .footer-main .footer-brand i {
            color: var(--accent);
        }
        .footer-main .footer-desc {
            font-size: 0.9rem;
            opacity: 0.7;
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer-main h6 {
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-main .footer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-main .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .footer-main .footer-links a:hover {
            color: #ffffff;
            padding-left: 4px;
        }
        .footer-main .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 32px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
        }
        .footer-main .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-main .footer-bottom a:hover {
            color: #ffffff;
        }
        @media (max-width:768px) {
            .footer-main .row>div {
                margin-bottom: 24px;
            }
            .footer-main {
                padding: 32px 0 0;
            }
        }

        /* ===== 响应式微调 ===== */
        @media (max-width:576px) {
            .feature-card {
                padding: 24px 20px;
            }
            .list-item-row .item-num {
                font-size: 1.4rem;
                min-width: 36px;
            }
            .page-hero .hero-title {
                font-size: 1.6rem;
            }
        }
        .btn-outline-primary-custom {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
            border-radius: 60px;
            padding: 10px 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-primary-custom:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(26, 42, 108, 0.15);
        }
        .tag-sm {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 40px;
            background: rgba(26, 42, 108, 0.06);
            color: var(--primary);
            letter-spacing: 0.3px;
        }
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
            font-size: 0.85rem;
        }
        .breadcrumb-custom li+li::before {
            content: '/';
            margin-right: 8px;
            color: var(--text-muted);
        }
        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .breadcrumb-custom a:hover {
            color: #ffffff;
        }
        .breadcrumb-custom .active {
            color: #ffffff;
            font-weight: 500;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-alt: #1e293b;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.25s ease;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 1rem;
            }
        }

        /* ===== Navbar ===== */
        .navbar-main {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            padding: 0.6rem 0;
            box-shadow: var(--shadow-sm);
            transition: background var(--transition);
        }
        .navbar-main .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--secondary);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .navbar-main .navbar-brand i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .navbar-main .navbar-brand:hover {
            color: var(--primary);
        }
        .navbar-main .nav-link {
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            font-size: 0.95rem;
        }
        .navbar-main .nav-link:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .navbar-main .nav-link.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .navbar-main .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 0.25rem 0.5rem;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        @media (max-width: 991.98px) {
            .navbar-main .navbar-collapse {
                background: var(--bg-card);
                border-radius: var(--radius-md);
                padding: 0.75rem;
                box-shadow: var(--shadow-lg);
                margin-top: 0.5rem;
                border: 1px solid var(--border);
            }
            .navbar-main .nav-link.active::after {
                display: none;
            }
        }

        /* ===== Article Detail ===== */
        .article-detail {
            padding: 3rem 0 4rem;
        }
        .article-detail .article-header {
            margin-bottom: 2.5rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--border);
        }
        .article-detail .article-category {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.2rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.3px;
            margin-bottom: 1rem;
        }
        .article-detail .article-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--secondary);
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
        }
        .article-detail .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .article-detail .article-meta i {
            margin-right: 0.35rem;
            color: var(--primary-light);
        }
        .article-detail .article-meta span {
            display: inline-flex;
            align-items: center;
        }
        .article-detail .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-secondary);
        }
        .article-detail .article-body p {
            margin-bottom: 1.35rem;
        }
        .article-detail .article-body h2,
        .article-detail .article-body h3 {
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            color: var(--secondary);
            font-weight: 700;
        }
        .article-detail .article-body h2 {
            font-size: 1.6rem;
        }
        .article-detail .article-body h3 {
            font-size: 1.25rem;
        }
        .article-detail .article-body ul,
        .article-detail .article-body ol {
            margin-bottom: 1.35rem;
            padding-left: 1.5rem;
        }
        .article-detail .article-body li {
            margin-bottom: 0.4rem;
        }
        .article-detail .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-detail .article-body a:hover {
            color: var(--primary-dark);
        }
        .article-detail .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-bg);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-detail .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-md);
        }
        .article-detail .article-body pre {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 1.25rem;
            border-radius: var(--radius-md);
            overflow-x: auto;
            font-size: 0.9rem;
            margin: 1.5rem 0;
        }
        .article-detail .article-body code {
            background: var(--border-light);
            padding: 0.15rem 0.45rem;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--secondary);
        }
        .article-detail .article-body pre code {
            background: transparent;
            color: var(--text-light);
            padding: 0;
        }

        .article-detail .article-footer {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .article-detail .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .article-detail .article-tags .tag {
            background: var(--border-light);
            color: var(--text-secondary);
            padding: 0.25rem 0.9rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .article-detail .article-tags .tag:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .article-detail .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--border-light);
            color: var(--text-secondary);
            transition: all var(--transition);
            font-size: 1rem;
        }
        .article-detail .article-share a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .article-not-found {
            text-align: center;
            padding: 4rem 1.5rem;
        }
        .article-not-found i {
            font-size: 3.5rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }
        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 0.75rem;
        }
        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
        }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.8rem;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all var(--transition);
        }
        .article-not-found .btn-back:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ===== Related Articles ===== */
        .related-articles {
            padding: 3rem 0 4rem;
            background: var(--bg-card);
            border-top: 1px solid var(--border);
        }
        .related-articles .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 2rem;
            color: var(--secondary);
            position: relative;
            display: inline-block;
        }
        .related-articles .section-title::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 40px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
        }
        .related-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            border: 1px solid var(--border);
            transition: all var(--transition);
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .related-card .related-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 0.15rem 0.7rem;
            border-radius: 12px;
            display: inline-block;
            margin-bottom: 0.5rem;
        }
        .related-card .related-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .related-card .related-title a {
            color: inherit;
        }
        .related-card .related-title a:hover {
            color: var(--primary);
        }
        .related-card .related-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0.75rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .related-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .related-card .related-date i {
            margin-right: 0.3rem;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 3.5rem 0;
            background: var(--primary-bg);
        }
        .faq-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--secondary);
        }
        .faq-section .section-subtitle {
            color: var(--text-secondary);
            margin-bottom: 2rem;
            font-size: 1rem;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            border: 1px solid var(--border);
            margin-bottom: 0.8rem;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            font-weight: 600;
            font-size: 1rem;
            color: var(--secondary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            gap: 1rem;
        }
        .faq-item .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: transform var(--transition);
        }
        .faq-item .faq-answer {
            margin-top: 0.75rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            border-top: 1px dashed var(--border);
            padding-top: 0.75rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 3.5rem 0;
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 60%);
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 2.2rem;
            background: var(--accent);
            color: var(--secondary);
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.3);
            color: var(--secondary);
        }
        .cta-section .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 2.2rem;
            background: transparent;
            color: var(--text-light);
            font-weight: 600;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.25);
            transition: all var(--transition);
            margin-left: 0.75rem;
        }
        .cta-section .btn-cta-outline:hover {
            border-color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 576px) {
            .cta-section .btn-cta-outline {
                margin-left: 0;
                margin-top: 0.75rem;
            }
        }

        /* ===== Footer ===== */
        .footer-main {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3rem 0 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-main .footer-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-main .footer-brand i {
            color: var(--primary-light);
        }
        .footer-main .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.6;
            max-width: 320px;
        }
        .footer-main h6 {
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 1rem;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
        }
        .footer-main .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }
        .footer-main .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .footer-main .footer-links a:hover {
            color: var(--text-light);
            padding-left: 4px;
        }
        .footer-main .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-main .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-main .footer-bottom a:hover {
            color: var(--text-light);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 0.75rem 0;
        }
        .breadcrumb-wrap .breadcrumb {
            margin: 0;
            background: transparent;
            padding: 0;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap .breadcrumb-item a {
            color: var(--text-muted);
        }
        .breadcrumb-wrap .breadcrumb-item a:hover {
            color: var(--primary);
        }
        .breadcrumb-wrap .breadcrumb-item.active {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb-wrap .breadcrumb-item+.breadcrumb-item::before {
            color: var(--text-muted);
            content: '/';
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .article-detail .article-title {
                font-size: 1.7rem;
            }
            .related-articles .section-title {
                font-size: 1.35rem;
            }
        }
        @media (max-width: 767.98px) {
            .article-detail {
                padding: 2rem 0 3rem;
            }
            .article-detail .article-title {
                font-size: 1.4rem;
            }
            .article-detail .article-meta {
                gap: 0.8rem;
                font-size: 0.8rem;
                flex-wrap: wrap;
            }
            .article-detail .article-body {
                font-size: 0.98rem;
            }
            .article-detail .article-body h2 {
                font-size: 1.3rem;
            }
            .article-detail .article-body h3 {
                font-size: 1.1rem;
            }
            .article-detail .article-footer {
                flex-direction: column;
                align-items: flex-start;
            }
            .faq-section .section-title {
                font-size: 1.3rem;
            }
            .cta-section h2 {
                font-size: 1.35rem;
            }
            .footer-main .footer-brand {
                font-size: 1.15rem;
            }
            .related-card {
                padding: 1.1rem;
            }
            .related-card .related-title {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .article-detail .article-title {
                font-size: 1.2rem;
            }
            .article-detail .article-body {
                font-size: 0.92rem;
            }
            .container-custom {
                padding: 0 0.75rem;
            }
            .breadcrumb-wrap .breadcrumb {
                font-size: 0.75rem;
                flex-wrap: wrap;
            }
        }

        /* ===== Utility ===== */
        .text-primary-custom {
            color: var(--primary) !important;
        }
        .bg-primary-soft {
            background: var(--primary-bg) !important;
        }
        .rounded-custom {
            border-radius: var(--radius-md) !important;
        }
        .shadow-custom {
            box-shadow: var(--shadow-md) !important;
        }
        .mt-section {
            margin-top: 0;
        }

        /* ===== Print ===== */
        @media print {
            .navbar-main,
            .breadcrumb-wrap,
            .related-articles,
            .faq-section,
            .cta-section,
            .footer-main {
                display: none !important;
            }
            .article-detail {
                padding: 1rem 0;
            }
            .article-detail .article-title {
                font-size: 1.6rem;
            }
            body {
                background: #fff;
            }
        }