/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-glow: #e76f51;
            --bg-dark: #0b1a2e;
            --bg-card: #ffffff;
            --bg-light: #f8f9fa;
            --bg-section-alt: #f0f4f8;
            --text-dark: #1a1a2e;
            --text-body: #2d3436;
            --text-muted: #6c757d;
            --text-light: #f1faee;
            --border-color: #e9ecef;
            --border-radius: 16px;
            --border-radius-sm: 10px;
            --border-radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --shadow-glow: 0 0 40px rgba(230, 57, 70, 0.15);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --spacing-section: 5rem;
        }

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 0.75rem;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--bg-dark);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
            border-bottom: 2px solid rgba(230, 57, 70, 0.3);
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.6rem;
            color: #fff !important;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            color: #fff;
            font-size: 1.2rem;
        }
        .navbar-brand .brand-text {
            background: linear-gradient(135deg, #fff, #f1faee);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .navbar-brand .brand-tag {
            font-size: 0.7rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            padding: 0.15rem 0.6rem;
            border-radius: 20px;
            -webkit-text-fill-color: #fff;
            margin-left: 0.3rem;
        }

        .nav-card-panel {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(12px);
            border-radius: 14px;
            padding: 0.3rem 0.8rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 0.2rem;
        }

        .nav-card-item {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.5rem 1.1rem;
            border-radius: 10px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            text-decoration: none;
            position: relative;
        }
        .nav-card-item i {
            font-size: 1rem;
            opacity: 0.7;
        }
        .nav-card-item:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            transform: translateY(-1px);
        }
        .nav-card-item.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
        }
        .nav-card-item.active i {
            opacity: 1;
        }

        .nav-cta-btn {
            background: linear-gradient(135deg, var(--primary), var(--accent-glow));
            color: #fff !important;
            padding: 0.5rem 1.4rem;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
            margin-left: 0.5rem;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
            color: #fff;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 0.4rem 0.6rem;
            background: transparent;
            color: #fff;
        }
        .navbar-toggler-icon {
            filter: brightness(0) invert(1);
        }

        /* ===== Hero ===== */
        .hero-section {
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 20% 50%, rgba(230, 57, 70, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(69, 123, 157, 0.12) 0%, transparent 50%);
            padding: 5rem 0 4rem;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(244, 162, 97, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(230, 57, 70, 0.15);
            color: var(--primary-light);
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(230, 57, 70, 0.2);
            backdrop-filter: blur(4px);
            margin-bottom: 1.5rem;
        }
        .hero-badge i {
            font-size: 0.8rem;
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            letter-spacing: -0.5px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-stat-item {
            text-align: left;
        }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }
        .hero-stat-item .num .suffix {
            color: var(--primary-light);
            font-size: 1.2rem;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 0.2rem;
        }

        .hero-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            padding: 0.85rem 2.2rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(230, 57, 70, 0.45);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
        }
        .btn-outline-light-custom {
            background: transparent;
            color: rgba(255, 255, 255, 0.85);
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            padding: 0.85rem 2rem;
            border-radius: 12px;
            font-weight: 500;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-card-mock {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--border-radius);
            padding: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            min-height: 280px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
        }
        .hero-card-mock .mock-dots {
            display: flex;
            gap: 0.4rem;
            margin-bottom: 1.5rem;
        }
        .hero-card-mock .mock-dots span {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }
        .hero-card-mock .mock-dots span:first-child {
            background: var(--primary);
        }
        .hero-card-mock .mock-line {
            height: 6px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.06);
            margin-bottom: 0.8rem;
            width: 100%;
        }
        .hero-card-mock .mock-line.short {
            width: 65%;
        }
        .hero-card-mock .mock-line.medium {
            width: 82%;
        }
        .hero-card-mock .mock-line.colored {
            background: linear-gradient(90deg, var(--primary), var(--accent));
            width: 40%;
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: var(--spacing-section) 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 0.75rem;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }
        .section-header-center {
            text-align: center;
        }
        .section-header-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin: 0.5rem 0 1.5rem 0;
        }
        .section-header-center .section-divider {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 分类卡片 ===== */
        .category-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 1.8rem 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(230, 57, 70, 0.15);
        }
        .category-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
        }
        .category-card .icon-wrap.style2 {
            background: linear-gradient(135deg, var(--primary), var(--accent-glow));
        }
        .category-card .icon-wrap.style3 {
            background: linear-gradient(135deg, var(--accent), var(--primary-light));
        }
        .category-card .icon-wrap.style4 {
            background: linear-gradient(135deg, #2a9d8f, #264653);
        }
        .category-card h5 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
        }
        .category-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .category-card .card-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 0.2rem 1rem;
            border-radius: 20px;
            margin-top: 0.6rem;
        }

        /* ===== 内容卡片 ===== */
        .content-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .content-card .card-thumb {
            height: 180px;
            background: linear-gradient(135deg, var(--secondary-light), var(--bg-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.2);
            font-size: 2.5rem;
            position: relative;
            overflow: hidden;
        }
        .content-card .card-thumb .thumb-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.3));
        }
        .content-card .card-thumb .cat-badge {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.9rem;
            border-radius: 20px;
            z-index: 2;
        }
        .content-card .card-body {
            padding: 1.4rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .content-card .card-body .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card .card-body .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.8rem;
        }
        .content-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 0.6rem;
            border-top: 1px solid var(--border-color);
        }
        .content-card .card-body .card-meta .date i {
            margin-right: 0.3rem;
        }

        /* ===== 数据/流程 ===== */
        .step-card {
            text-align: center;
            padding: 2rem 1.5rem;
            background: var(--bg-card);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-card .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent-glow));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.25);
        }
        .step-card h5 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 统计数字 ===== */
        .stat-block {
            background: var(--bg-dark);
            padding: 3.5rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .stat-item {
            text-align: center;
            padding: 1rem 0;
        }
        .stat-item .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-item .stat-num .stat-suffix {
            color: var(--primary-light);
            font-size: 1.5rem;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 0.25rem;
        }

        /* ===== FAQ ===== */
        .faq-card {
            background: var(--bg-card);
            border-radius: var(--border-radius-sm);
            border: 1px solid var(--border-color);
            padding: 1.25rem 1.5rem;
            margin-bottom: 0.75rem;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-card:hover {
            border-color: rgba(230, 57, 70, 0.15);
            box-shadow: var(--shadow-sm);
        }
        .faq-card .faq-q {
            font-weight: 700;
            color: var(--text-dark);
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .faq-card .faq-q i {
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-card .faq-a {
            font-size: 0.95rem;
            color: var(--text-muted);
            padding-top: 0.6rem;
            border-top: 1px solid var(--border-color);
            margin-top: 0.6rem;
            display: none;
        }
        .faq-card.open .faq-a {
            display: block;
        }
        .faq-card.open .faq-q i {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 30% 50%, rgba(230, 57, 70, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(69, 123, 157, 0.08) 0%, transparent 50%);
            padding: 4.5rem 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 2rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            padding: 3rem 0 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.4);
            max-width: 320px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 0.4rem;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-links a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .site-footer .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, 0.3);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.5);
            font-size: 1.1rem;
            transition: var(--transition);
            margin-right: 0.5rem;
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== CMS 列表空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 2rem 1rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--border-radius);
            border: 1px dashed var(--border-color);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .hero-title {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 991.98px) {
            :root {
                --spacing-section: 3.5rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-section {
                padding: 3.5rem 0 3rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .nav-card-panel {
                background: transparent;
                backdrop-filter: none;
                border: none;
                padding: 0.5rem 0;
                flex-direction: column;
                align-items: stretch;
                gap: 0.3rem;
            }
            .nav-card-item {
                padding: 0.6rem 1rem;
                border-radius: 8px;
                color: rgba(255, 255, 255, 0.7);
            }
            .nav-card-item.active {
                background: var(--primary);
            }
            .nav-cta-btn {
                margin-left: 0;
                margin-top: 0.3rem;
                justify-content: center;
            }
            .hero-card-mock {
                margin-top: 2rem;
                min-height: 200px;
            }
            .hero-stats {
                gap: 1.5rem;
            }
            .hero-stat-item .num {
                font-size: 1.5rem;
            }
            .stat-item .stat-num {
                font-size: 2rem;
            }
            .navbar-brand {
                font-size: 1.3rem;
            }
            .navbar-brand .brand-tag {
                font-size: 0.6rem;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --spacing-section: 2.5rem;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-btn-group {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-btn-group .btn {
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .content-card .card-thumb {
                height: 150px;
            }
            .stat-item .stat-num {
                font-size: 1.6rem;
            }
            .site-footer .footer-links {
                margin-bottom: 1.5rem;
            }
            .navbar-brand {
                font-size: 1.1rem;
            }
            .navbar-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .hero-section {
                padding: 2.5rem 0 2rem;
            }
            .faq-card {
                padding: 1rem 1.2rem;
            }
            .category-card {
                padding: 1.2rem 1rem;
            }
            .category-card .icon-wrap {
                width: 52px;
                height: 52px;
                font-size: 1.3rem;
            }
            .step-card {
                padding: 1.5rem 1rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .content-card .card-body {
                padding: 1rem 1.2rem 1.2rem;
            }
            .content-card .card-body .card-title {
                font-size: 1rem;
            }
            .container {
                padding-left: 0.9rem;
                padding-right: 0.9rem;
            }
            .hero-stat-item .num {
                font-size: 1.3rem;
            }
            .stat-item .stat-num {
                font-size: 1.4rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
        }

        /* ===== 辅助 ===== */
        .bg-alt {
            background-color: var(--bg-section-alt);
        }
        .bg-card-light {
            background-color: var(--bg-card);
        }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .gap-section {
            gap: 2rem;
        }
        .mt-section {
            margin-top: 2rem;
        }

        /* Bootstrap 覆盖 */
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border: none;
            border-radius: 12px;
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.35);
        }
        .btn-outline-primary {
            border-color: var(--primary);
            color: var(--primary);
            border-radius: 12px;
            padding: 0.7rem 1.8rem;
            font-weight: 600;
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .card {
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
        }
        .badge-primary {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 50px;
        }
        .form-control {
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 0.65rem 1.2rem;
            font-size: 0.95rem;
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.12);
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #f1c0b8;
            --primary-gradient: linear-gradient(135deg, #e63946 0%, #c1121f 100%);
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-glow: #f4a26140;
            --bg-dark: #0d1b2a;
            --bg-darker: #070f1a;
            --bg-card: #1b2a3a;
            --bg-card-hover: #243447;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --text-primary: #f1faee;
            --text-secondary: #a8dadc;
            --text-muted: #8a9ba8;
            --text-dark: #1d3557;
            --text-body: #2b2d42;
            --border-color: #2a3a4a;
            --border-light: #e0e0e0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-height: 80px;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-main);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            overflow-x: hidden;
        }

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

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

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

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 1.25rem;
            padding-right: 1.25rem;
            margin: 0 auto;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--bg-darker);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            position: sticky;
            top: 0;
            z-index: 1050;
            height: var(--header-height);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .site-header .navbar {
            padding: 0;
            height: 100%;
        }

        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0;
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            transition: var(--transition);
        }
        .site-header .navbar-brand:hover {
            color: var(--primary);
            transform: scale(1.02);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: var(--primary-gradient);
            border-radius: 12px;
            color: #fff;
            font-size: 1.3rem;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
        }

        .brand-text {
            color: #fff;
            font-weight: 800;
            font-size: 1.6rem;
        }
        .brand-tag {
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.15rem 0.55rem;
            border-radius: 6px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-left: 0.15rem;
            line-height: 1.4;
        }

        /* 导航卡片面板 */
        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.05);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
        }

        .nav-card-item {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.6rem 1.2rem;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: var(--transition);
            background: transparent;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .nav-card-item i {
            font-size: 1rem;
            opacity: 0.8;
        }
        .nav-card-item:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .nav-card-item.active {
            color: #fff;
            background: var(--primary-gradient);
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }
        .nav-card-item.active:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.45);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.6rem 1.4rem;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: var(--accent);
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(244, 162, 97, 0.3);
        }
        .nav-cta-btn i {
            font-size: 1rem;
        }
        .nav-cta-btn:hover {
            color: #fff;
            background: #e08f4a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(244, 162, 97, 0.45);
        }

        /* 移动端导航 */
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 0.45rem 0.6rem;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.3);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-darker);
            color: var(--text-secondary);
            padding: 3.5rem 0 1.5rem;
            border-top: 1px solid var(--border-color);
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary-gradient);
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
        }
        .footer-brand i {
            color: var(--primary);
            margin-right: 0.4rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 1.2rem;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            font-size: 1.1rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.3);
        }

        .footer-links li {
            margin-bottom: 0.55rem;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
            letter-spacing: 0.02em;
        }

        /* ===== 分类页专用样式 ===== */

        /* 页面标题区 */
        .category-hero {
            background: var(--bg-dark);
            padding: 4rem 0 3.5rem;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .category-hero h1 i {
            color: var(--primary);
            margin-right: 0.5rem;
        }
        .category-hero .lead {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }
        .category-breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1.2rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .category-breadcrumb a {
            color: var(--text-secondary);
        }
        .category-breadcrumb a:hover {
            color: var(--primary);
        }
        .category-breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .category-breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* 分类标签导航 */
        .category-tabs {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 1rem 0;
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: var(--header-height);
            z-index: 1020;
        }
        .category-tabs .tabs-scroll {
            display: flex;
            gap: 0.5rem;
            overflow-x: auto;
            padding-bottom: 4px;
            scrollbar-width: thin;
            scrollbar-color: var(--primary) transparent;
        }
        .category-tabs .tabs-scroll::-webkit-scrollbar {
            height: 4px;
        }
        .category-tabs .tabs-scroll::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 10px;
        }
        .category-tabs .tab-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-body);
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }
        .category-tabs .tab-btn i {
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .category-tabs .tab-btn:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }
        .category-tabs .tab-btn.active {
            background: var(--primary-gradient);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
        }

        /* 内容主体 */
        .category-main {
            padding: 3.5rem 0 4rem;
            background: var(--bg-light);
        }

        /* 内容卡片 */
        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .guide-card .card-img {
            height: 200px;
            background: var(--bg-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 2.8rem;
            position: relative;
            overflow: hidden;
        }
        .guide-card .card-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.5));
        }
        .guide-card .card-img .img-icon {
            position: relative;
            z-index: 1;
            background: rgba(230, 57, 70, 0.15);
            width: 80px;
            height: 80px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.2rem;
            color: #fff;
            backdrop-filter: blur(8px);
            border: 2px solid rgba(255, 255, 255, 0.15);
        }
        .guide-card .card-img .card-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            z-index: 2;
            background: var(--primary-gradient);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.9rem;
            border-radius: 50px;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }
        .guide-card .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }
        .guide-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-body);
            opacity: 0.8;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 1rem;
        }
        .guide-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.8rem;
            padding-top: 0.5rem;
            border-top: 1px solid var(--border-light);
        }
        .guide-card .card-body .card-meta i {
            margin-right: 0.25rem;
        }
        .guide-card .card-body .btn-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0;
            border: none;
            background: none;
            transition: var(--transition);
        }
        .guide-card .card-body .btn-link:hover {
            color: var(--primary-dark);
            gap: 0.7rem;
        }

        /* 攻略列表（图文） */
        .guide-list-item {
            display: flex;
            gap: 1.5rem;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            margin-bottom: 1rem;
            align-items: flex-start;
        }
        .guide-list-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-light);
        }
        .guide-list-item .list-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            background: var(--primary-gradient);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.2);
        }
        .guide-list-item .list-content {
            flex: 1;
        }
        .guide-list-item .list-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.3rem;
        }
        .guide-list-item .list-content p {
            font-size: 0.9rem;
            color: var(--text-body);
            opacity: 0.75;
            line-height: 1.7;
            margin-bottom: 0.3rem;
        }
        .guide-list-item .list-content .list-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 0.15rem 0.6rem;
            border-radius: 50px;
            margin-top: 0.3rem;
        }

        /* FAQ 板块 */
        .faq-section {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            margin-top: 2rem;
        }
        .faq-section .section-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .faq-section .section-title i {
            color: var(--primary);
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 1.2rem 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item .faq-q {
            font-weight: 700;
            color: var(--text-dark);
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .faq-item .faq-q i {
            color: var(--primary);
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .faq-item .faq-q:hover {
            color: var(--primary);
        }
        .faq-item .faq-q .toggle-icon {
            margin-left: auto;
            color: var(--text-muted);
        }
        .faq-item .faq-a {
            padding: 0.8rem 0 0 1.4rem;
            color: var(--text-body);
            font-size: 0.9rem;
            line-height: 1.8;
            opacity: 0.8;
        }

        /* CTA 区块 */
        .cta-block {
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            text-align: center;
            margin-top: 3rem;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-block h3 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            position: relative;
        }
        .cta-block p {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 520px;
            margin: 0 auto 1.5rem;
            position: relative;
        }
        .cta-block .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            background: var(--primary-gradient);
            border: none;
            transition: var(--transition);
            cursor: pointer;
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.35);
            position: relative;
        }
        .cta-block .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(230, 57, 70, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            :root {
                --header-height: 70px;
            }

            .nav-card-panel {
                flex-direction: column;
                align-items: stretch;
                background: transparent;
                border: none;
                padding: 0.8rem 0;
                gap: 0.4rem;
            }
            .nav-card-item,
            .nav-cta-btn {
                padding: 0.7rem 1rem;
                border-radius: 10px;
                justify-content: center;
            }
            .nav-card-item {
                background: rgba(255, 255, 255, 0.04);
                border-color: rgba(255, 255, 255, 0.06);
            }

            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .lead {
                font-size: 1rem;
            }
            .guide-card .card-img {
                height: 160px;
            }
            .guide-list-item {
                flex-direction: column;
                gap: 1rem;
            }
            .guide-list-item .list-icon {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
            .faq-section {
                padding: 1.5rem;
            }
            .cta-block {
                padding: 2rem 1.5rem;
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 767.98px) {
            .category-hero {
                padding: 2.5rem 0 2rem;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero h1 i {
                font-size: 1.4rem;
            }
            .category-hero .lead {
                font-size: 0.9rem;
            }
            .category-main {
                padding: 2rem 0 2.5rem;
            }
            .guide-card .card-body {
                padding: 1.2rem;
            }
            .guide-card .card-body h3 {
                font-size: 1rem;
            }
            .guide-list-item {
                padding: 1rem;
            }
            .guide-list-item .list-content h4 {
                font-size: 0.95rem;
            }
            .faq-section .section-title {
                font-size: 1.2rem;
            }
            .faq-item .faq-q {
                font-size: 0.9rem;
            }
            .cta-block {
                padding: 1.8rem 1.2rem;
                border-radius: var(--radius-md);
            }
            .cta-block h3 {
                font-size: 1.1rem;
            }
            .cta-block p {
                font-size: 0.85rem;
            }
            .cta-block .cta-btn {
                padding: 0.65rem 1.4rem;
                font-size: 0.9rem;
            }
            .category-tabs .tab-btn {
                font-size: 0.8rem;
                padding: 0.4rem 0.9rem;
            }
            .guide-card .card-img {
                height: 140px;
            }
            .guide-card .card-img .img-icon {
                width: 60px;
                height: 60px;
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 0.9rem;
                padding-right: 0.9rem;
            }
            .category-hero h1 {
                font-size: 1.3rem;
            }
            .category-hero .lead {
                font-size: 0.85rem;
            }
            .guide-card .card-img {
                height: 120px;
            }
            .guide-card .card-body {
                padding: 1rem;
            }
            .guide-card .card-body p {
                font-size: 0.8rem;
            }
            .guide-list-item .list-content p {
                font-size: 0.8rem;
            }
            .faq-section {
                padding: 1rem;
            }
            .faq-item .faq-a {
                font-size: 0.8rem;
            }
            .footer-brand {
                font-size: 1.2rem;
            }
            .brand-text {
                font-size: 1.3rem;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .brand-tag {
                font-size: 0.6rem;
            }
        }

        /* loading 骨架 */
        .skeleton {
            background: linear-gradient(90deg, var(--border-light) 25%, #f0f0f0 50%, var(--border-light) 75%);
            background-size: 200% 100%;
            animation: shimmer 1.5s infinite;
            border-radius: var(--radius-sm);
        }
        @keyframes shimmer {
            0% {
                background-position: 200% 0;
            }
            100% {
                background-position: -200% 0;
            }
        }

        /* 辅助 */
        .text-primary-custom {
            color: var(--primary) !important;
        }
        .bg-primary-soft {
            background: var(--primary-light);
        }
        .fw-800 {
            font-weight: 800 !important;
        }
        .gap-1 {
            gap: 0.25rem;
        }
        .gap-2 {
            gap: 0.5rem;
        }
        .gap-3 {
            gap: 1rem;
        }
        .mb-0 {
            margin-bottom: 0 !important;
        }
        .mt-auto {
            margin-top: auto;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a5fb4;
            --primary-light: #2d7be0;
            --primary-dark: #0f3f7a;
            --accent: #f5b342;
            --accent-light: #f7c66a;
            --accent-dark: #d4921e;
            --bg-body: #f5f7fb;
            --bg-card: #ffffff;
            --bg-dark: #0b1a2e;
            --bg-dark-alt: #11233c;
            --text-main: #1c2a3d;
            --text-secondary: #4a5b6e;
            --text-weak: #8a9bb0;
            --text-light: #e8edf4;
            --text-on-primary: #ffffff;
            --border-color: #dce2ec;
            --border-light: #e9eef4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.06), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-lg: 0 14px 40px rgba(0,0,0,0.07), 0 4px 16px rgba(0,0,0,0.04);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.09);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --font-serif: 'Georgia', 'Noto Serif SC', serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 1rem;
            padding-top: var(--header-height);
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; padding: 0; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-main); }
        h1 { font-size: 2.2rem; }
        h2 { font-size: 1.8rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1.2rem; color: var(--text-secondary); }
        .container { max-width: var(--container-max); padding: 0 20px; }
        .row { --bs-gutter-x: 28px; }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(0,0,0,0.03);
            transition: var(--transition);
        }
        .site-header .navbar {
            padding: 0;
            height: var(--header-height);
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 6px;
            font-weight: 800;
            color: var(--text-main) !important;
            padding: 0;
            font-size: 1.3rem;
        }
        .navbar-brand .brand-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 12px;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(26,95,180,0.25);
        }
        .navbar-brand .brand-text { color: var(--primary); }
        .navbar-brand .brand-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(245,179,66,0.15);
            padding: 2px 10px;
            border-radius: 40px;
            letter-spacing: 0.3px;
            margin-left: 4px;
        }
        .nav-card-panel {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--bg-card);
            padding: 6px 10px 6px 18px;
            border-radius: 60px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .nav-card-item {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-card-item i { font-size: 0.95rem; opacity: 0.7; }
        .nav-card-item:hover { color: var(--primary); background: rgba(26,95,180,0.06); }
        .nav-card-item.active {
            color: var(--text-on-primary);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(26,95,180,0.3);
        }
        .nav-card-item.active i { opacity: 1; }
        .nav-cta-btn {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #1c2a3d !important;
            box-shadow: 0 4px 16px rgba(245,179,66,0.3);
            transition: var(--transition);
            white-space: nowrap;
            border: none;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245,179,66,0.4);
            color: #1c2a3d !important;
        }
        .navbar-toggler {
            border: none;
            padding: 8px 12px;
            border-radius: 12px;
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
        }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(26,95,180,0.2); }
        .navbar-toggler-icon { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(26,95,180,0.8)' stroke-width='2.5' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E"); }

        /* ===== 面包屑 ===== */
        .breadcrumb-area {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            padding: 14px 0;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .breadcrumb-custom a { color: var(--text-weak); }
        .breadcrumb-custom a:hover { color: var(--primary); }
        .breadcrumb-custom .sep { color: var(--border-color); font-weight: 300; }
        .breadcrumb-custom .current { color: var(--text-secondary); font-weight: 500; }

        /* ===== 文章头部 ===== */
        .article-header {
            padding: 40px 0 24px;
            background: var(--bg-card);
        }
        .article-header .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(26,95,180,0.08);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 4px 16px;
            border-radius: 40px;
            margin-bottom: 16px;
        }
        .article-header .category-badge i { font-size: 0.75rem; }
        .article-header h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 900px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 30px;
            align-items: center;
            font-size: 0.9rem;
            color: var(--text-weak);
        }
        .article-meta .meta-item { display: flex; align-items: center; gap: 6px; }
        .article-meta .meta-item i { font-size: 0.85rem; opacity: 0.6; }
        .article-meta .meta-divider { width: 1px; height: 18px; background: var(--border-color); }

        /* ===== 正文区 ===== */
        .article-body-wrap {
            padding: 40px 0 50px;
            background: var(--bg-body);
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 48px 52px;
            border: 1px solid var(--border-light);
        }
        .article-body .content {
            font-size: 1.08rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .article-body .content p { margin-bottom: 1.6rem; }
        .article-body .content h2, .article-body .content h3 {
            color: var(--text-main);
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        .article-body .content h2 { font-size: 1.6rem; }
        .article-body .content h3 { font-size: 1.3rem; }
        .article-body .content ul, .article-body .content ol {
            padding-left: 1.8rem;
            margin-bottom: 1.6rem;
        }
        .article-body .content ul { list-style: disc; }
        .article-body .content ol { list-style: decimal; }
        .article-body .content li { margin-bottom: 0.4rem; color: var(--text-secondary); }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(26,95,180,0.04);
            padding: 18px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.6rem 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content img {
            border-radius: var(--radius-md);
            margin: 1.6rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
        .article-body .content a:hover { color: var(--primary-light); }
        .article-body .content code {
            background: rgba(26,95,180,0.06);
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.9em;
            color: var(--primary-dark);
        }

        /* ===== 标签 & 分享 ===== */
        .article-footer-bar {
            border-top: 1px solid var(--border-light);
            margin-top: 36px;
            padding-top: 28px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-body);
            border: 1px solid var(--border-light);
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            color: var(--text-secondary);
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .article-tags .tag i { font-size: 0.7rem; }
        .share-buttons {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .share-buttons .share-label { font-size: 0.85rem; color: var(--text-weak); margin-right: 4px; }
        .share-buttons a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg-body);
            color: var(--text-secondary);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .share-buttons a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* ===== 上下篇 ===== */
        .post-navigation {
            padding: 30px 0 40px;
            background: var(--bg-body);
        }
        .post-nav-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }
        .post-nav-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .post-nav-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
        .post-nav-item .nav-label {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-weak);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .post-nav-item .nav-title {
            font-weight: 700;
            color: var(--text-main);
            font-size: 1rem;
            line-height: 1.4;
        }
        .post-nav-item:hover .nav-title { color: var(--primary); }
        .post-nav-item.next { text-align: right; }
        .post-nav-item.next .nav-label { justify-content: flex-end; }

        /* ===== 相关推荐 ===== */
        .related-posts {
            padding: 50px 0 60px;
            background: var(--bg-card);
        }
        .related-posts .section-title {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .related-posts .section-sub {
            color: var(--text-weak);
            margin-bottom: 32px;
            font-size: 0.95rem;
        }
        .related-card {
            background: var(--bg-body);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .related-card .card-img-wrap {
            height: 180px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.25);
            font-size: 2.8rem;
            position: relative;
            overflow: hidden;
        }
        .related-card .card-img-wrap::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
        }
        .related-card .card-body {
            padding: 20px 22px 24px;
        }
        .related-card .card-category {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(26,95,180,0.08);
            padding: 2px 12px;
            border-radius: 40px;
            display: inline-block;
            margin-bottom: 10px;
        }
        .related-card .card-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card a:hover .card-title { color: var(--primary); }
        .related-card .card-meta {
            font-size: 0.8rem;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-meta i { font-size: 0.7rem; }

        /* ===== CTA ===== */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-alt) 100%);
            position: relative;
            overflow: hidden;
        }
        .article-cta::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26,95,180,0.12), transparent 70%);
            pointer-events: none;
        }
        .article-cta::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245,179,66,0.08), transparent 70%);
            pointer-events: none;
        }
        .article-cta .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .article-cta h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .article-cta p {
            color: rgba(255,255,255,0.65);
            font-size: 1.05rem;
            margin-bottom: 28px;
        }
        .article-cta .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .article-cta .btn-cta-primary {
            padding: 14px 36px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #1c2a3d !important;
            box-shadow: 0 6px 24px rgba(245,179,66,0.3);
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .article-cta .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(245,179,66,0.4);
        }
        .article-cta .btn-cta-secondary {
            padding: 14px 36px;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1rem;
            background: rgba(255,255,255,0.06);
            color: #fff !important;
            border: 1px solid rgba(255,255,255,0.15);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .article-cta .btn-cta-secondary:hover {
            background: rgba(255,255,255,0.12);
            border-color: rgba(255,255,255,0.3);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.6);
            padding: 56px 0 28px;
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
        }
        .site-footer .footer-desc { color: rgba(255,255,255,0.5); font-size: 0.9rem; max-width: 320px; line-height: 1.7; }
        .site-footer .footer-social { display: flex; gap: 12px; margin-top: 18px; }
        .site-footer .footer-social a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.55);
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
            font-size: 1rem;
        }
        .site-footer .footer-social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }
        .site-footer .footer-links { padding: 0; margin: 0; }
        .site-footer .footer-links li { margin-bottom: 8px; }
        .site-footer .footer-links a {
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .site-footer .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            margin-top: 36px;
            padding-top: 24px;
            text-align: center;
        }
        .site-footer .footer-bottom p { color: rgba(255,255,255,0.35); font-size: 0.8rem; margin: 0; }
        .site-footer h6 { color: #fff; font-weight: 700; margin-bottom: 0.8rem; font-size: 0.95rem; }

        /* ===== 内容未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box .nf-icon {
            font-size: 4rem;
            color: var(--text-weak);
            margin-bottom: 20px;
            opacity: 0.4;
        }
        .not-found-box h2 { font-size: 1.6rem; color: var(--text-main); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-weak); margin-bottom: 24px; }
        .not-found-box .btn-back {
            padding: 12px 32px;
            border-radius: 60px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            border: none;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,95,180,0.3); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-header h1 { font-size: 2rem; }
            .article-body { padding: 36px 32px; }
            .post-nav-inner { gap: 14px; }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav-card-panel {
                flex-direction: column;
                align-items: stretch;
                background: transparent;
                box-shadow: none;
                border: none;
                padding: 12px 0;
                border-radius: 0;
            }
            .nav-card-item { padding: 10px 16px; border-radius: 12px; justify-content: center; }
            .nav-cta-btn { justify-content: center; margin-top: 6px; }
            .navbar-collapse {
                background: var(--bg-card);
                border-radius: var(--radius-md);
                padding: 16px 20px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border-light);
                margin-top: 12px;
            }
            .article-header { padding: 28px 0 18px; }
            .article-header h1 { font-size: 1.6rem; }
            .article-body { padding: 24px 20px; border-radius: var(--radius-md); }
            .article-body .content { font-size: 1rem; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
            .post-nav-inner { grid-template-columns: 1fr; }
            .related-card .card-img-wrap { height: 140px; }
            .article-cta h2 { font-size: 1.5rem; }
            .article-cta .cta-btn-group { flex-direction: column; align-items: center; }
            .site-footer .footer-brand { justify-content: center; }
            .site-footer .footer-desc { text-align: center; margin: 0 auto; }
            .site-footer .footer-social { justify-content: center; }
            .site-footer .footer-links { text-align: center; }
            .site-footer h6 { text-align: center; }
        }
        @media (max-width: 520px) {
            .article-header h1 { font-size: 1.3rem; }
            .article-body { padding: 18px 14px; }
            .article-meta { gap: 10px; font-size: 0.8rem; }
            .article-meta .meta-divider { display: none; }
            .breadcrumb-custom { font-size: 0.75rem; flex-wrap: wrap; }
            .related-card .card-img-wrap { height: 120px; }
            .article-cta { padding: 40px 0; }
            .article-cta h2 { font-size: 1.2rem; }
        }

        /* ===== 其他辅助 ===== */
        .text-primary-custom { color: var(--primary) !important; }
        .bg-primary-soft { background: rgba(26,95,180,0.06); }
        .gap-2 { gap: 8px; }
        .gap-3 { gap: 16px; }
        .fw-700 { font-weight: 700; }
        .fs-sm { font-size: 0.85rem; }
        .text-weak { color: var(--text-weak); }
        .mb-0 { margin-bottom: 0; }
        .mt-2 { margin-top: 12px; }
        .mt-3 { margin-top: 20px; }
        .mb-2 { margin-bottom: 12px; }
        .mb-3 { margin-bottom: 20px; }
        .mb-4 { margin-bottom: 28px; }