/* roulang page: index */
:root {
            --primary: #1a2b4c;
            --primary-dark: #101b33;
            --primary-light: #243a61;
            --accent: #d4a13c;
            --accent-light: #e8c36a;
            --accent-dark: #b88a2a;
            --bg: #f5f7fb;
            --bg-alt: #eef1f7;
            --card-bg: #ffffff;
            --text: #1e2a3a;
            --text-muted: #5a6a7f;
            --text-light: #8a99ad;
            --border: #e2e8f0;
            --border-light: #edf1f7;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(26,43,76,0.06);
            --shadow: 0 6px 24px rgba(26,43,76,0.08);
            --shadow-lg: 0 16px 48px rgba(26,43,76,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-safe: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-safe);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 32px;
        }

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

        /* 悬浮胶囊导航 */
        .site-header {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 20px 0;
            background: transparent;
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: 0 8px 32px rgba(26, 43, 76, 0.08);
            padding: 12px 0;
            border-radius: 0;
        }

        .nav-pill-wrap {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: 60px;
            border: 1px solid rgba(255, 255, 255, 0.6);
            box-shadow: 0 8px 32px rgba(26, 43, 76, 0.1);
            padding: 8px 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition);
        }

        .site-header.scrolled .nav-pill-wrap {
            box-shadow: 0 4px 24px rgba(26, 43, 76, 0.14);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 40px;
            background: linear-gradient(135deg, rgba(212, 161, 60, 0.12), rgba(26, 43, 76, 0.04));
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .brand-logo i {
            color: var(--accent);
            font-size: 20px;
        }

        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-link-item {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .nav-link-item:hover {
            color: var(--primary);
            background: rgba(26, 43, 76, 0.05);
        }

        .nav-link-item.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            box-shadow: 0 4px 12px rgba(26, 43, 76, 0.2);
        }

        .header-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            border: none;
            padding: 9px 22px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 14px rgba(212, 161, 60, 0.3);
            transition: var(--transition);
        }

        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(212, 161, 60, 0.4);
            color: var(--primary-dark);
        }

        /* 移动端导航 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            padding: 6px 10px;
            cursor: pointer;
        }

        @media (max-width: 992px) {
            .navbar-nav {
                display: none;
                position: absolute;
                top: 70px;
                right: 20px;
                background: #fff;
                border-radius: var(--radius);
                box-shadow: var(--shadow-lg);
                padding: 12px;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                min-width: 240px;
                border: 1px solid var(--border);
            }

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

            .mobile-menu-btn {
                display: block;
            }

            .header-cta {
                display: none;
            }

            .nav-pill-wrap {
                padding: 4px 8px;
            }

            .brand-logo {
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .brand-logo {
                font-size: 13px;
                padding: 4px 10px;
            }

            .nav-pill-wrap {
                padding: 4px 6px;
            }
        }

        /* Hero 区域 */
        .hero-section {
            position: relative;
            background: var(--primary-dark);
            background-image: linear-gradient(120deg, rgba(16, 27, 51, 0.92) 0%, rgba(26, 43, 76, 0.85) 50%, rgba(16, 27, 51, 0.92) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            color: #fff;
            padding: 180px 0 120px;
            overflow: hidden;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -40px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 161, 60, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 40px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--accent-light);
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
            letter-spacing: 1px;
        }

        .hero-title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

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

        .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .hero-stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
        }

        .hero-stat-num {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .btn-custom-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            border: none;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 24px rgba(212, 161, 60, 0.3);
            transition: var(--transition);
        }

        .btn-custom-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(212, 161, 60, 0.4);
            color: var(--primary-dark);
        }

        .btn-custom-ghost {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 14px 30px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .btn-custom-ghost:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-wrapper {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 34px;
            }

            .hero-desc {
                font-size: 15px;
            }

            .hero-stats {
                gap: 24px;
                margin-top: 32px;
            }

            .hero-stat-num {
                font-size: 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 28px;
            }

            .hero-section {
                padding: 150px 0 80px;
            }

            .btn-wrapper {
                flex-direction: column;
            }
        }

        /* 板块通用 */
        .section {
            padding: 100px 0;
        }

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

        .section-sm {
            padding: 60px 0;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
        }

        .section-head {
            margin-bottom: 56px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .section-title {
                font-size: 28px;
            }
        }

        /* 核心功能卡片 */
        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            padding: 32px 28px;
            height: 100%;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 161, 60, 0.3);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(212, 161, 60, 0.15), rgba(26, 43, 76, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent-dark);
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            transform: scale(1.05);
        }

        .feature-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .feature-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
            margin-top: 16px;
            transition: var(--transition);
        }

        .feature-link:hover {
            gap: 10px;
            color: var(--primary);
        }

        /* 统计数字块 */
        .stats-band {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .stats-band::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(212, 161, 60, 0.2), transparent 70%);
            border-radius: 50%;
        }

        .stat-item {
            text-align: left;
            padding: 8px;
            position: relative;
            z-index: 1;
        }

        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            display: flex;
            align-items: baseline;
        }

        .stat-number span {
            font-size: 22px;
            font-weight: 600;
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
            letter-spacing: 1px;
        }

        @media (max-width: 768px) {
            .stats-band {
                padding: 40px 24px;
            }

            .stat-number {
                font-size: 30px;
            }
        }

        /* 分类入口卡片 */
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            height: 280px;
            display: block;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: none;
        }

        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .category-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(16, 27, 51, 0.92) 0%, rgba(16, 27, 51, 0.4) 50%, rgba(16, 27, 51, 0.1) 100%);
            transition: var(--transition);
        }

        .category-card:hover::after {
            background: linear-gradient(to top, rgba(16, 27, 51, 0.95) 0%, rgba(16, 27, 51, 0.5) 50%, rgba(16, 27, 51, 0.15) 100%);
        }

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

        .category-card-content {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            z-index: 2;
            color: #fff;
        }

        .category-card-label {
            font-size: 14px;
            color: var(--accent-light);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .category-card-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .category-card-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* 流程/步骤 */
        .step-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 32px 28px;
            position: relative;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
        }

        .step-card:hover {
            box-shadow: var(--shadow);
            border-color: rgba(212, 161, 60, 0.3);
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            box-shadow: 0 6px 16px rgba(26, 43, 76, 0.2);
        }

        .step-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .step-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 内容列表卡片 */
        .content-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(212, 161, 60, 0.3);
        }

        .content-card-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(212, 161, 60, 0.1);
            color: var(--accent-dark);
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .content-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-light);
        }

        .content-card-meta a {
            color: var(--accent-dark);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 安全提示 */
        .security-tip {
            background: linear-gradient(135deg, rgba(212, 161, 60, 0.08), rgba(26, 43, 76, 0.02));
            border: 1px solid rgba(212, 161, 60, 0.2);
            border-radius: var(--radius);
            padding: 28px 32px;
            transition: var(--transition);
            height: 100%;
        }

        .security-tip:hover {
            border-color: rgba(212, 161, 60, 0.4);
            box-shadow: var(--shadow-sm);
        }

        .security-tip i {
            font-size: 28px;
            color: var(--accent-dark);
            margin-bottom: 16px;
            display: inline-block;
        }

        .security-tip-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .security-tip-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            padding: 0;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(212, 161, 60, 0.3);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            color: var(--primary);
            font-size: 15px;
        }

        .faq-question i {
            color: var(--accent-dark);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question i {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding-bottom: 20px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 72px 56px;
            position: relative;
            overflow: hidden;
            isolation: isolate;
            box-shadow: var(--shadow-lg);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: -1;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(212, 161, 60, 0.2), transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .cta-title {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin-bottom: 32px;
        }

        .cta-btn-wrap {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
            }

            .cta-title {
                font-size: 26px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 0 32px;
            margin-top: 80px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-brand i {
            color: var(--accent);
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 24px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 空状态 */
        .empty-list {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 48px;
            text-align: center;
            color: var(--text-muted);
            border: 2px dashed var(--border);
        }

        /* 焦点可见性 */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(212, 161, 60, 0.5);
            outline-offset: 2px;
        }

        /* 通用卡片网格间距 */
        .row-gap {
            --bs-gutter-y: 2rem;
        }

/* roulang page: category1 */
:root {
            --primary: #0b1a2e;
            --primary-light: #132742;
            --primary-dark: #060e1a;
            --accent: #d4a853;
            --accent-light: #ead5a0;
            --accent-dark: #b8903a;
            --bg-body: #f5f7fb;
            --bg-soft: #edf1f7;
            --bg-white: #ffffff;
            --text-dark: #141e2c;
            --text-main: #2e3a4d;
            --text-muted: #78869a;
            --border: #e2e8f0;
            --radius: 20px;
            --radius-sm: 12px;
            --shadow-xs: 0 2px 8px rgba(11, 26, 46, 0.04);
            --shadow-sm: 0 4px 18px rgba(11, 26, 46, 0.06);
            --shadow: 0 12px 40px rgba(11, 26, 46, 0.08);
            --shadow-lg: 0 24px 64px rgba(11, 26, 46, 0.14);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            transition: var(--transition);
        }

        .site-header.scrolled {
            top: 0;
        }

        .nav-pill-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(6, 14, 26, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 60px;
            padding: 10px 10px 10px 22px;
            box-shadow: 0 12px 48px rgba(6, 14, 26, 0.35);
            transition: var(--transition);
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.08rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo i {
            color: var(--accent);
            font-size: 1.35rem;
            transition: var(--transition);
        }

        .brand-logo:hover {
            color: var(--accent-light);
        }

        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            transition: var(--transition);
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 40px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-link-item:hover,
        .nav-link-item:focus-visible {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link-item.active {
            color: var(--primary-dark);
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.35);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 0.88rem;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 50%;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        @media (max-width: 991px) {
            .nav-pill-wrap {
                border-radius: 32px;
                flex-wrap: wrap;
                padding: 12px 16px;
            }

            .mobile-menu-btn {
                display: inline-flex;
                order: 2;
            }

            .navbar-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 8px;
                padding: 12px 8px 4px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
            }

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

            .nav-link-item {
                width: 100%;
                justify-content: flex-start;
                padding: 12px 16px;
            }

            .header-cta {
                order: 3;
                margin-left: auto;
                margin-right: 0;
                font-size: 0.82rem;
                padding: 8px 16px;
            }

            .brand-logo {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }

            .nav-pill-wrap {
                border-radius: 24px;
                padding: 10px 12px;
            }

            .brand-logo {
                font-size: 0.85rem;
                gap: 6px;
            }

            .brand-logo i {
                font-size: 1.1rem;
            }

            .header-cta {
                padding: 8px 14px;
                font-size: 0.8rem;
                gap: 6px;
            }

            .header-cta i {
                display: none;
            }
        }

        /* ========== Hero ========== */
        .page-hero {
            position: relative;
            padding: 180px 0 110px;
            background: linear-gradient(180deg, rgba(6, 14, 26, 0.88) 0%, rgba(11, 26, 46, 0.72) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
        }

        .breadcrumb-line {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 40px;
            padding: 6px 18px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            backdrop-filter: blur(8px);
        }

        .breadcrumb-line a {
            color: rgba(255, 255, 255, 0.6);
        }

        .breadcrumb-line a:hover {
            color: var(--accent-light);
        }

        .breadcrumb-line .sep {
            color: rgba(255, 255, 255, 0.3);
            font-size: 0.7rem;
        }

        .breadcrumb-line .current {
            color: var(--accent-light);
            font-weight: 500;
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3.4rem);
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .page-hero h1 span {
            color: var(--accent);
        }

        .page-hero .hero-desc {
            font-size: 1.02rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 780px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            padding-bottom: 12px;
        }

        .hero-badges .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.8);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 40px;
            padding: 6px 16px;
            font-size: 0.82rem;
            transition: var(--transition);
        }

        .hero-badges .badge-soft i {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 150px 0 80px;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

            .page-hero .hero-desc {
                font-size: 0.92rem;
            }

            .hero-badges {
                gap: 8px;
            }

            .hero-badges .badge-soft {
                font-size: 0.75rem;
                padding: 5px 12px;
            }
        }

        /* ========== 通用板块 ========== */
        .section-block {
            padding: 90px 0;
        }

        .section-white {
            background: #fff;
        }

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

        .section-dark {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
        }

        .section-head {
            margin-bottom: 52px;
        }

        .section-head .tag-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-dark);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            background: rgba(212, 168, 83, 0.1);
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 0.98rem;
            max-width: 700px;
            margin: 0 auto;
        }

        .section-head.center {
            text-align: center;
        }

        .section-head.center p {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 分类简介 ========== */
        .about-wrap {
            display: flex;
            align-items: center;
            gap: 56px;
        }

        .about-content {
            flex: 1;
        }

        .about-content .tag-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-dark);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            background: rgba(212, 168, 83, 0.12);
            padding: 6px 14px;
            border-radius: 40px;
            margin-bottom: 16px;
        }

        .about-content h2 {
            font-size: clamp(1.7rem, 3vw, 2.2rem);
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 18px;
        }

        .about-content p {
            color: var(--text-muted);
            font-size: 0.96rem;
            line-height: 1.85;
            margin-bottom: 18px;
        }

        .about-features {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 22px;
        }

        .about-features .feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-main);
            font-weight: 500;
        }

        .about-features .feature-item i {
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.15);
            color: var(--accent-dark);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .about-visual {
            flex: 1;
            position: relative;
        }

        .about-visual .img-frame {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .about-visual .img-frame img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: var(--transition);
        }

        .about-visual .img-frame:hover img {
            transform: scale(1.03);
        }

        .about-visual .float-card {
            position: absolute;
            bottom: 24px;
            left: -20px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-radius: 16px;
            padding: 16px 22px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 180px;
            border: 1px solid rgba(255, 255, 255, 0.6);
        }

        .about-visual .float-card i {
            font-size: 1.5rem;
            color: var(--accent);
        }

        .about-visual .float-card .num {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.2;
        }

        .about-visual .float-card .label {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        @media (max-width: 991px) {
            .about-wrap {
                flex-direction: column;
                gap: 40px;
            }

            .about-visual .float-card {
                left: 12px;
            }
        }

        @media (max-width: 520px) {
            .about-visual .float-card {
                min-width: 150px;
                padding: 12px 16px;
            }

            .about-visual .img-frame img {
                height: 280px;
            }
        }

        /* ========== 入口类型卡片 ========== */
        .entry-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 34px 28px;
            height: 100%;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .entry-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: var(--transition);
        }

        .entry-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 83, 0.3);
        }

        .entry-card:hover::before {
            opacity: 1;
        }

        .entry-card .card-icon {
            width: 64px;
            height: 64px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(212, 168, 83, 0.18), rgba(212, 168, 83, 0.05));
            color: var(--accent-dark);
            font-size: 1.5rem;
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .entry-card:hover .card-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.35);
            transform: scale(1.05);
        }

        .entry-card h3 {
            font-size: 1.15rem;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .entry-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .entry-card .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.75rem;
            color: var(--accent-dark);
            background: rgba(212, 168, 83, 0.08);
            padding: 4px 12px;
            border-radius: 30px;
            margin-top: 14px;
            transition: var(--transition);
        }

        .entry-card:hover .card-tag {
            background: rgba(212, 168, 83, 0.15);
        }

        @media (max-width: 520px) {
            .entry-card {
                padding: 24px 20px;
            }
        }

        /* ========== 流程 ========== */
        .process-section {
            background: linear-gradient(135deg, #0b1a2e, #132742);
            color: #fff;
        }

        .process-section .section-head h2 {
            color: #fff;
        }

        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.6);
        }

        .process-section .section-head .tag-label {
            color: var(--accent-light);
            background: rgba(212, 168, 83, 0.15);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(212, 168, 83, 0.3);
        }

        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 18px;
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.3);
        }

        .process-step h3 {
            font-size: 1.02rem;
            color: #fff;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 991px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* ========== 安全提示 ========== */
        .security-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .security-item {
            background: var(--bg-soft);
            border-radius: var(--radius);
            padding: 26px 24px;
            display: flex;
            gap: 18px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .security-item:hover {
            background: #fff;
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }

        .security-item .sec-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(212, 168, 83, 0.12);
            color: var(--accent-dark);
            font-size: 1rem;
        }

        .security-item h4 {
            font-size: 1rem;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 6px;
        }

        .security-item p {
            font-size: 0.87rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .security-list {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: 16px !important;
            margin-bottom: 14px;
            background: #fff;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-xs);
        }

        .accordion-custom .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(212, 168, 83, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .accordion-custom .accordion-button {
            font-size: 0.98rem !important;
            font-weight: 600;
            color: var(--text-dark) !important;
            background: transparent !important;
            padding: 18px 22px !important;
            box-shadow: none !important;
            border: none !important;
            transition: var(--transition);
        }

        .accordion-custom .accordion-button::after {
            background-size: 12px;
            filter: brightness(0.6);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.15) !important;
        }

        .accordion-custom .accordion-body {
            padding: 0 22px 20px !important;
            color: var(--text-muted) !important;
            font-size: 0.9rem !important;
            line-height: 1.8 !important;
        }

        @media (max-width: 520px) {
            .accordion-custom .accordion-button {
                font-size: 0.9rem !important;
                padding: 14px 16px !important;
            }

            .accordion-custom .accordion-body {
                padding: 0 16px 16px !important;
            }
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: linear-gradient(rgba(6, 14, 26, 0.88), rgba(6, 14, 26, 0.88)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 0.98rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 32px;
        }

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

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            font-size: 0.92rem;
            font-weight: 600;
            padding: 12px 30px;
            border-radius: 40px;
            transition: var(--transition);
            border: none;
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(212, 168, 83, 0.4);
            color: var(--primary-dark);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 0.92rem;
            font-weight: 600;
            padding: 12px 30px;
            border-radius: 40px;
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 520px) {
            .cta-section {
                padding: 70px 0;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-accent,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 70px 0 24px;
            position: relative;
            overflow: hidden;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0.6;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-brand i {
            color: var(--accent);
            font-size: 1.4rem;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

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

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }

        .footer-links a::before {
            content: '›';
            color: var(--accent);
            font-size: 1rem;
            opacity: 0.7;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-light);
            transform: translateX(3px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 50px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom p {
            margin-bottom: 4px;
        }

/* roulang page: article */
:root {
            --primary: #0c1b33;
            --primary-light: #16305a;
            --primary-dark: #081221;
            --accent: #d4a853;
            --accent-light: #e8c97a;
            --accent-dark: #b8913d;
            --cyan: #34d1bf;
            --bg: #f5f6fa;
            --bg-alt: #eef0f6;
            --card: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow: 0 4px 24px rgba(12, 27, 51, 0.08);
            --shadow-lg: 0 12px 40px rgba(12, 27, 51, 0.14);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* header / nav */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 0;
        }
        .nav-pill-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: rgba(255, 255, 255, 0.86);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 60px;
            padding: 12px 24px;
            box-shadow: 0 8px 32px rgba(12, 27, 51, 0.14);
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 17px;
            color: var(--primary);
            white-space: nowrap;
        }
        .brand-logo i {
            color: var(--accent);
            font-size: 22px;
        }
        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
        }
        .nav-link-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 40px;
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }
        .nav-link-item:hover,
        .nav-link-item.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(12, 27, 51, 0.2);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            padding: 10px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 700;
            white-space: nowrap;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(212, 168, 83, 0.3);
        }
        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(212, 168, 83, 0.4);
            color: var(--primary-dark);
        }
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(12, 27, 51, 0.08);
            color: var(--primary);
            font-size: 18px;
            transition: var(--transition);
        }
        .mobile-menu-btn:hover {
            background: rgba(12, 27, 51, 0.14);
        }
        /* article hero */
        .article-hero {
            position: relative;
            padding: 90px 0 64px;
            margin-top: 16px;
            background: linear-gradient(135deg, rgba(8, 18, 33, 0.92), rgba(22, 48, 90, 0.86)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 0%, rgba(212, 168, 83, 0.22), transparent 60%);
        }
        .article-hero .container-custom {
            position: relative;
            z-index: 2;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 26px;
        }
        .article-breadcrumb a {
            color: var(--accent-light);
            transition: var(--transition);
        }
        .article-breadcrumb a:hover {
            color: #fff;
        }
        .article-breadcrumb i {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.5);
        }
        .article-hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
            max-width: 920px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            margin-bottom: 20px;
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.9);
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 6px 14px;
            border-radius: 40px;
        }
        .meta-item i {
            color: var(--accent-light);
        }
        .article-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.8);
            max-width: 840px;
        }
        /* article body */
        .article-section {
            padding: 56px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 32px;
            align-items: start;
        }
        .article-main {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 40px;
        }
        .article-body-content {
            font-size: 16px;
            line-height: 1.95;
        }
        .article-body-content p {
            margin-bottom: 20px;
        }
        .article-body-content h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 36px 0 16px;
            color: var(--primary);
        }
        .article-body-content h3 {
            font-size: 21px;
            font-weight: 700;
            margin: 28px 0 12px;
            color: var(--primary);
        }
        .article-body-content ul,
        .article-body-content ol {
            margin-bottom: 20px;
            padding-left: 0;
        }
        .article-body-content ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 10px;
        }
        .article-body-content ul li::before {
            content: '';
            position: absolute;
            left: 4px;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 2px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
        }
        .article-body-content ol {
            counter-reset: list;
        }
        .article-body-content ol li {
            counter-increment: list;
            position: relative;
            padding-left: 36px;
            margin-bottom: 10px;
        }
        .article-body-content ol li::before {
            content: counter(list, decimal-leading-zero);
            position: absolute;
            left: 0;
            top: 2px;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .article-body-content img {
            border-radius: var(--radius-md);
            margin: 12px 0;
        }
        .article-body-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 14px 20px;
            background: #f9fafb;
            border-radius: 0 12px 12px 0;
            margin-bottom: 20px;
            color: var(--text-light);
            font-size: 15px;
        }
        .article-body-content a {
            color: var(--accent-dark);
            border-bottom: 1px solid rgba(184, 145, 61, 0.3);
        }
        .article-body-content a:hover {
            border-color: var(--accent-dark);
        }
        .article-tags {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-light);
            padding: 5px 14px;
            border-radius: 40px;
            font-size: 13px;
            transition: var(--transition);
        }
        .tag-badge:hover {
            border-color: var(--accent);
            color: var(--primary);
            background: #fff;
        }
        .tag-badge i {
            font-size: 11px;
            color: var(--accent);
        }
        .article-footer-nav {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 34px;
            padding-top: 26px;
            border-top: 1px solid var(--border);
        }
        .article-empty-tip {
            text-align: center;
            padding: 40px 20px;
            background: var(--bg);
            border-radius: var(--radius-md);
        }
        .article-empty-tip i {
            font-size: 42px;
            color: var(--accent);
            margin-bottom: 14px;
        }
        .article-empty-tip p {
            margin: 0;
            color: var(--text-light);
        }
        .article-not-found {
            text-align: center;
            padding: 60px 24px;
        }
        .not-found-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--accent);
            font-size: 32px;
        }
        .article-not-found h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .article-not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        /* sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 110px;
        }
        .sidebar-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 24px;
        }
        .sidebar-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .sidebar-title i {
            color: var(--accent);
        }
        .sidebar-security {
            background: linear-gradient(135deg, #fffbeb, #fef3c7);
            border-color: #fcd34d;
        }
        .sidebar-security p {
            font-size: 14px;
            color: #92400e;
            line-height: 1.7;
            margin: 0;
        }
        .sidebar-entry p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .side-post-list li {
            margin-bottom: 4px;
        }
        .side-post-list li+li {
            border-top: 1px solid var(--bg-alt);
            padding-top: 10px;
            margin-top: 10px;
        }
        .side-post-list a {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 6px 0;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .side-post-list a:hover .side-post-title {
            color: var(--accent-dark);
        }
        .side-post-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
        }
        .side-post-date {
            font-size: 12px;
            color: var(--text-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .text-muted {
            font-size: 14px;
        }
        /* buttons */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            padding: 11px 26px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 700;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(212, 168, 83, 0.35);
        }
        .btn-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(212, 168, 83, 0.45);
            color: var(--primary-dark);
        }
        .btn-custom.btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            padding: 11px 26px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent-light);
        }
        /* section head */
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-head h2::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: -8px;
            transform: translateX(-50%);
            width: 40px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
        }
        .section-head p {
            color: var(--text-light);
            font-size: 16px;
            margin-top: 12px;
        }
        /* service points */
        .service-points {
            background: var(--card);
            padding: 80px 0;
        }
        .feature-card {
            position: relative;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            height: 100%;
            transition: var(--transition);
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
        }
        .feature-card:hover::after {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(212, 168, 83, 0.16), rgba(212, 168, 83, 0.08));
            color: var(--accent-dark);
            font-size: 22px;
            margin-bottom: 20px;
            border: 1px solid rgba(212, 168, 83, 0.25);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }
        .feature-num {
            position: absolute;
            top: 18px;
            right: 22px;
            font-size: 44px;
            font-weight: 800;
            color: var(--bg);
            line-height: 1;
            pointer-events: none;
        }
        /* access steps */
        .access-steps {
            padding: 80px 0;
            background: var(--bg-alt);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-card {
            position: relative;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 34px 24px;
            text-align: center;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--accent);
        }
        .step-num {
            display: inline-flex;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 16px;
            margin-bottom: 16px;
            box-shadow: 0 4px 12px rgba(212, 168, 83, 0.3);
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }
        /* cta */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.2;
        }
        .cta-inner {
            position: relative;
            text-align: center;
            color: #fff;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        /* faq */
        .faq-section {
            padding: 80px 0;
            background: var(--card);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.open {
            border-color: var(--accent);
            background: #fff;
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--accent-dark);
        }
        .faq-question i {
            color: var(--accent);
            font-size: 13px;
            transition: transform 0.3s;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer p {
            padding: 0 24px 20px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        /* footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding-top: 64px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand i {
            color: var(--accent);
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 18px;
            max-width: 340px;
            line-height: 1.7;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 0;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 22px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        /* responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: minmax(0, 1fr) 320px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-logo span {
                font-size: 15px;
            }
        }
        @media (max-width: 768px) {
            .nav-pill-wrap {
                padding: 10px 16px;
                border-radius: 30px;
                position: relative;
            }
            .navbar-nav {
                display: none;
                position: absolute;
                top: 74px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: #fff;
                border-radius: 20px;
                padding: 16px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border);
            }
            .navbar-nav.open {
                display: flex;
            }
            .nav-link-item {
                width: 100%;
                justify-content: center;
                padding: 12px;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .article-hero {
                padding: 64px 0 44px;
            }
            .article-hero h1 {
                font-size: 28px;
            }
            .article-desc {
                font-size: 15px;
            }
            .article-main {
                padding: 26px;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }
            .brand-logo span {
                font-size: 13px;
                white-space: normal;
                line-height: 1.3;
            }
            .brand-logo i {
                font-size: 18px;
            }
            .nav-pill-wrap {
                gap: 10px;
                padding: 10px 12px;
            }
            .article-meta {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .article-tags {
                gap: 8px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer p {
                padding: 0 18px 18px;
            }
        }