/* roulang page: index */
:root {
            --primary: #3D7EA6;
            --primary-dark: #2F6388;
            --primary-light: #E8F1F7;
            --accent: #C9A24B;
            --accent-light: #F3E9D2;
            --bg: #F7F9FB;
            --surface: #FFFFFF;
            --text: #2C3E50;
            --text-secondary: #6B7A8D;
            --border: #E3EAF0;
            --dark-bg: #1E2A36;
            --shadow-sm: 0 2px 8px rgba(40, 60, 80, 0.06);
            --shadow-md: 0 8px 24px rgba(40, 60, 80, 0.10);
            --radius: 12px;
            --radius-sm: 8px;
            --transition: 0.25s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Inter", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 500;
            font-size: 14px;
            transition: color var(--transition);
        }
        .text-link:hover {
            color: var(--accent);
        }
        .text-link i {
            font-size: 13px;
            transition: transform var(--transition);
        }
        .text-link:hover i {
            transform: translateX(3px);
        }
        .badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
        }
        .badge-accent {
            background: var(--accent);
            color: #fff;
        }

        /* ===== 公共区块 ===== */
        .section-header {
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 640px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center p {
            margin: 0 auto;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #fff;
            height: 72px;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            height: 72px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
        }
        .logo-icon:before {
            content: '';
            position: absolute;
            width: 18px;
            height: 18px;
            background: var(--accent);
            transform: rotate(45deg);
            border-radius: 3px;
        }
        .logo-text {
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 auto;
            background: #E8F1F7;
            padding: 4px;
            border-radius: 999px;
        }
        .nav-chip {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.5;
        }
        .nav-chip:hover {
            background: #DCE9F3;
            color: var(--text);
        }
        .nav-chip.active {
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }
        .btn-header {
            margin-left: 24px;
            padding: 10px 24px;
            font-size: 14px;
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 40px;
            height: 40px;
            padding: 8px;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            margin-left: 12px;
            flex-shrink: 0;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .btn-mobile-cta {
            display: none;
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 480px;
            display: flex;
            align-items: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            margin-top: 72px;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, rgba(247, 249, 251, 0.95) 0%, rgba(232, 241, 247, 0.72) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 60%;
            padding: 80px 0;
        }
        .hero h1 {
            font-size: 44px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 16px;
        }
        .hero h1 .highlight {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: 18px;
            color: #6B7A8D;
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 560px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-badges {
            display: flex;
            gap: 28px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #6B7A8D;
        }
        .hero-badge i {
            color: var(--accent);
            font-size: 18px;
        }

        /* ===== 服务区 ===== */
        .services-section {
            padding: 80px 0;
            background: var(--surface);
        }
        .services-layout {
            display: flex;
            gap: 48px;
            align-items: flex-start;
        }
        .services-intro {
            flex: 0 0 35%;
            position: sticky;
            top: 112px;
        }
        .services-intro h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .services-intro p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .services-grid {
            flex: 0 0 65%;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .service-card {
            background: var(--primary-light);
            border-radius: var(--radius);
            padding: 24px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .service-card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }
        .service-num {
            font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
            font-weight: 300;
            font-size: 14px;
            color: var(--accent);
            letter-spacing: 1px;
        }
        .service-icon {
            width: 40px;
            height: 40px;
            background: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .service-card:hover .service-icon {
            background: var(--accent);
            color: #fff;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            transition: color var(--transition);
        }
        .service-card:hover h3 {
            color: var(--primary);
        }
        .service-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        /* ===== 数据区 ===== */
        .stats-section {
            background: var(--primary-light);
            padding: 80px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-num {
            font-size: 42px;
            font-weight: 700;
            color: var(--accent);
            font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        /* ===== 案例区 ===== */
        .cases-section {
            padding: 80px 0;
            background: var(--surface);
        }
        .case-list {
            display: flex;
            flex-direction: column;
            gap: 56px;
        }
        .case-row {
            display: flex;
            align-items: center;
            gap: 48px;
        }
        .case-row.reverse {
            flex-direction: row-reverse;
        }
        .case-image {
            flex: 0 0 480px;
            border-radius: var(--radius);
            overflow: hidden;
        }
        .case-image img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .case-row:hover .case-image img {
            transform: scale(1.02);
        }
        .case-content {
            flex: 1;
        }
        .case-content .badge {
            margin-bottom: 12px;
        }
        .case-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .case-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 480px;
        }

        /* ===== 方案区 ===== */
        .solutions-section {
            padding: 80px 0;
            background: var(--bg);
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .solution-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 40px 32px;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--primary);
            transition: all var(--transition);
        }
        .solution-card.accent {
            border-left-color: var(--accent);
        }
        .solution-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .solution-card h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .solution-card .solution-sub {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .solution-card ul {
            margin: 0 0 24px 0;
            padding: 0;
        }
        .solution-card ul li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 10px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.7;
        }
        .solution-card ul li:before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        /* ===== 资讯区 ===== */
        .news-section {
            padding: 80px 0;
            background: var(--surface);
        }
        .news-section .section-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .news-card a {
            color: inherit;
            display: block;
        }
        .news-card a:hover {
            color: inherit;
        }
        .news-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--primary-light);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.02);
        }
        .news-thumb .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }
        .news-card-body {
            padding: 20px;
        }
        .news-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            color: var(--text);
            transition: color var(--transition);
        }
        .news-card a:hover .news-card h3 {
            color: var(--primary);
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-meta {
            font-size: 13px;
            color: #A0B2C4;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 0;
            color: var(--text-secondary);
            font-size: 15px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
            background: var(--bg);
        }
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-accordion .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-accordion .accordion-item.is-active {
            border-left: 3px solid var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 12px;
            line-height: 1.5;
        }
        .faq-accordion .accordion-title:before {
            content: '?';
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            flex-shrink: 0;
            line-height: 1;
        }
        .faq-accordion .accordion-content {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--border);
        }
        .faq-accordion .accordion-content p {
            padding-top: 16px;
        }

        /* ===== 联系CTA ===== */
        .contact-section {
            padding: 80px 0;
            background: var(--dark-bg);
            color: #fff;
        }
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
        }
        .contact-info h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
            line-height: 1.4;
        }
        .contact-info p {
            color: #A0B2C4;
            margin-bottom: 24px;
            font-size: 15px;
            line-height: 1.8;
        }
        .contact-info ul {
            padding: 0;
        }
        .contact-info li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            color: #A0B2C4;
            font-size: 15px;
        }
        .contact-info li i {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            flex-shrink: 0;
        }
        .contact-form .form-group {
            margin-bottom: 20px;
        }
        .contact-form label {
            font-size: 14px;
            color: #A0B2C4;
            display: block;
            margin-bottom: 6px;
        }
        .contact-form input,
        .contact-form textarea {
            width: 100%;
            height: 44px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            color: #fff;
            padding: 0 16px;
            font-size: 15px;
            transition: all var(--transition);
            outline: none;
            box-shadow: none;
        }
        .contact-form textarea {
            height: 100px;
            padding: 12px 16px;
            resize: vertical;
        }
        .contact-form input:focus,
        .contact-form textarea:focus {
            background: rgba(255, 255, 255, 0.95);
            color: var(--text);
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(61, 126, 166, 0.2);
        }
        .contact-form input::placeholder,
        .contact-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .contact-form .btn-primary {
            width: 100%;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
        }
        .footer-brand p {
            color: #A0B2C4;
            font-size: 14px;
            margin-top: 16px;
            line-height: 1.8;
        }
        .footer-cols h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-cols ul li {
            margin-bottom: 10px;
        }
        .footer-cols ul li a {
            color: #A0B2C4;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-cols ul li a:hover {
            color: var(--accent);
        }
        .footer-contact li {
            color: #A0B2C4;
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact li i {
            color: var(--accent);
            width: 16px;
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            color: #A0B2C4;
            font-size: 13px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .case-image {
                flex-basis: 360px;
            }
            .services-layout {
                flex-direction: column;
            }
            .services-intro {
                flex: none;
                position: static;
                max-width: 600px;
            }
            .services-grid {
                flex: none;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hero-content {
                max-width: 100%;
            }
            .case-row,
            .case-row.reverse {
                flex-direction: column;
                gap: 24px;
            }
            .case-image {
                flex: none;
                width: 100%;
            }
            .solutions-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .contact-layout {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero {
                min-height: 360px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
        }
        @media (max-width: 640px) {
            .site-header {
                height: 64px;
            }
            .header-inner {
                height: 64px;
                padding: 0 16px;
            }
            .logo-text {
                font-size: 18px;
            }
            .btn-header {
                display: none;
            }
            .hamburger {
                display: flex;
                margin-left: auto;
            }
            .main-nav {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 24px;
                border-radius: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                gap: 12px;
                align-items: stretch;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
                margin: 0;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-chip {
                padding: 12px 20px;
                text-align: center;
                font-size: 16px;
            }
            .btn-mobile-cta {
                display: block;
                margin-top: 8px;
                text-align: center;
            }
            .hero {
                margin-top: 64px;
                min-height: 400px;
            }
            .hero-content {
                padding: 48px 0;
                text-align: center;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .hero-buttons .btn-primary,
            .hero-buttons .btn-outline {
                width: 100%;
            }
            .hero-badges {
                justify-content: center;
                gap: 16px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .stat-num {
                font-size: 34px;
            }
            .case-image img {
                height: 220px;
            }
            .solution-card {
                padding: 28px 24px;
            }
            .news-section .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .contact-layout {
                gap: 32px;
            }
            .services-section,
            .stats-section,
            .cases-section,
            .solutions-section,
            .news-section,
            .faq-section,
            .contact-section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 26px;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-badges {
                flex-direction: column;
                align-items: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #3D7EA6;
            --primary-dark: #2F6388;
            --primary-light: #E8F1F7;
            --accent: #C9A24B;
            --accent-light: #F3E9D2;
            --bg: #F7F9FB;
            --surface: #FFFFFF;
            --text: #2C3E50;
            --text-secondary: #6B7A8D;
            --border: #E3EAF0;
            --dark-bg: #1E2A36;
            --radius: 12px;
            --shadow: 0 2px 8px rgba(40, 60, 80, 0.06);
            --shadow-hover: 0 8px 24px rgba(40, 60, 80, 0.10);
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 12px 28px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(61, 126, 166, 0.25);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: 8px;
            padding: 12px 28px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            background: #fff;
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(40, 60, 80, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--accent);
            position: relative;
            display: inline-block;
            flex-shrink: 0;
        }
        .logo-icon::after {
            content: "";
            position: absolute;
            inset: 5px;
            background: linear-gradient(135deg, #E8D5A3 30%, #C9A24B 70%);
            border-radius: 5px;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            padding: 4px;
            border-radius: 999px;
        }
        .nav-chip {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            color: var(--text-secondary);
            white-space: nowrap;
            font-weight: 500;
            transition: all var(--transition);
        }
        .nav-chip:hover {
            color: var(--primary);
            background: #DCE9F3;
        }
        .nav-chip.active {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 2px 6px rgba(40, 60, 80, 0.08);
            font-weight: 600;
        }

        .btn-header {
            flex-shrink: 0;
            margin-left: 12px;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            margin: 4px 0;
            border-radius: 2px;
        }
        .btn-mobile-cta {
            display: none;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 16px 24px 24px;
            z-index: 999;
            box-shadow: 0 8px 24px rgba(40, 60, 80, 0.08);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 15px;
            color: var(--text);
            font-weight: 500;
        }
        .mobile-menu a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-menu a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .page-hero {
            position: relative;
            min-height: 220px;
            background: linear-gradient(135deg, var(--primary-light) 30%, rgba(232, 241, 247, 0.7)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            padding: 80px 0 40px;
            margin-top: 72px;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: #B0C0CE;
        }

        .category-main {
            padding: 64px 0 80px;
            background: var(--bg);
        }

        .main-content {
            padding-right: 0;
        }

        .intro-block {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 32px;
            margin-bottom: 40px;
            box-shadow: var(--shadow);
            border-left: 4px solid var(--accent);
        }
        .intro-block p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            position: relative;
            padding-left: 16px;
        }
        .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-sub {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        .services-block {
            margin-bottom: 48px;
        }
        .service-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--surface);
            border-radius: var(--radius);
            padding: 20px;
            margin-bottom: 16px;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .service-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .service-thumb {
            width: 120px;
            height: 90px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .service-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .service-item:hover .service-thumb img {
            transform: scale(1.05);
        }
        .service-badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .service-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .service-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 6px;
        }
        .service-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
        }
        .service-link:hover {
            color: var(--accent);
        }
        .service-link i {
            font-size: 12px;
            margin-left: 4px;
        }

        .advantages-block {
            margin-bottom: 48px;
        }
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .advantage-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .advantage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .advantage-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 22px;
            color: var(--primary);
            transition: all var(--transition);
        }
        .advantage-card:hover .icon-wrap {
            background: var(--accent-light);
            color: var(--accent);
        }
        .advantage-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .advantage-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .scenarios-block {
            margin-bottom: 48px;
        }
        .scenario-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .scenario-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--surface);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .scenario-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .scenario-item .scenario-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .scenario-item h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 2px;
        }
        .scenario-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .process-block {
            margin-bottom: 48px;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process-step {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            position: relative;
            transition: all var(--transition);
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            font-family: "Inter", sans-serif;
            margin-bottom: 8px;
        }
        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .faq-block {
            margin-bottom: 0;
        }
        .faq-block .accordion {
            background: transparent;
        }
        .faq-block .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-block .accordion-item.is-active {
            box-shadow: var(--shadow);
            border-left: 3px solid var(--accent);
        }
        .faq-block .accordion-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            outline: none;
        }
        .faq-block .accordion-title::before {
            content: "?";
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .faq-block .accordion-title:hover {
            color: var(--primary);
        }
        .faq-block .accordion-content {
            padding: 0 20px 18px 54px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border: none;
            background: transparent;
        }

        .sidebar {
            padding-left: 0;
        }
        .sidebar-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            margin-bottom: 20px;
        }
        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        .chip-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .chip-list a {
            display: inline-block;
            background: var(--primary-light);
            color: var(--text-secondary);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition);
        }
        .chip-list a:hover {
            background: var(--primary);
            color: #fff;
        }
        .related-list li {
            margin-bottom: 10px;
        }
        .related-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: all var(--transition);
        }
        .related-list a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .related-list i {
            font-size: 12px;
            color: var(--accent);
        }
        .sidebar-cta {
            background: var(--primary);
            color: #fff;
        }
        .sidebar-cta h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.2);
        }
        .sidebar-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 18px;
            line-height: 1.7;
        }
        .sidebar-cta .btn-primary {
            background: var(--accent);
            width: 100%;
        }
        .sidebar-cta .btn-primary:hover {
            background: #B08C38;
            box-shadow: 0 4px 12px rgba(201, 162, 75, 0.35);
        }

        .bottom-cta {
            background: var(--accent-light);
            padding: 64px 0;
            text-align: center;
        }
        .bottom-cta h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .bottom-cta p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .contact-section {
            background: var(--dark-bg);
            padding: 72px 0;
            color: #fff;
        }
        .contact-section .section-title {
            color: #fff;
        }
        .contact-section .section-sub {
            color: #A0B2C4;
        }
        .contact-info-list {
            margin-top: 16px;
        }
        .contact-info-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
            font-size: 15px;
            color: #C8D6E2;
        }
        .contact-info-list i {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 14px;
            flex-shrink: 0;
        }
        .contact-form .form-label {
            color: #A0B2C4;
            font-size: 13px;
            margin-bottom: 4px;
            display: block;
        }
        .contact-form input,
        .contact-form textarea {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            color: #fff;
            padding: 10px 14px;
            font-size: 14px;
            height: 44px;
            width: 100%;
            margin-bottom: 16px;
            transition: all var(--transition);
            outline: none;
        }
        .contact-form input::placeholder,
        .contact-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .contact-form input:focus,
        .contact-form textarea:focus {
            background: #fff;
            color: var(--text);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 162, 75, 0.2);
        }
        .contact-form textarea {
            height: 100px;
            resize: vertical;
        }
        .contact-form .btn-primary {
            background: var(--accent);
            color: #fff;
            border: none;
            width: 100%;
        }
        .contact-form .btn-primary:hover {
            background: #B08C38;
        }

        .site-footer {
            background: var(--dark-bg);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            color: #A0B2C4;
            line-height: 1.8;
            margin-top: 12px;
        }
        .footer-cols h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-cols ul li {
            margin-bottom: 10px;
        }
        .footer-cols a {
            font-size: 14px;
            color: #A0B2C4;
        }
        .footer-cols a:hover {
            color: var(--accent);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #A0B2C4;
            margin-bottom: 10px;
        }
        .footer-contact i {
            color: var(--accent);
            font-size: 13px;
            width: 16px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: #8298AB;
        }

        @media screen and (max-width: 1024px) {
            .main-nav .nav-chip {
                padding: 8px 14px;
                font-size: 13px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
            .advantage-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media screen and (max-width: 768px) {
            .service-item {
                flex-direction: column;
            }
            .service-thumb {
                width: 100%;
                height: 160px;
            }
            .scenario-list {
                grid-template-columns: 1fr;
            }
            .sidebar {
                padding-left: 0;
                padding-top: 24px;
            }
        }

        @media screen and (max-width: 640px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .btn-mobile-cta {
                display: inline-flex;
            }
            .btn-header {
                display: none;
            }
            .page-hero {
                min-height: 180px;
                padding: 72px 0 32px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .category-main {
                padding: 40px 0 48px;
            }
            .intro-block {
                padding: 20px;
            }
            .service-item {
                padding: 16px;
            }
            .service-thumb {
                height: 120px;
            }
            .advantage-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                text-align: center;
            }
            .contact-section {
                padding: 48px 0;
            }
            .bottom-cta {
                padding: 40px 0;
            }
            .bottom-cta h2 {
                font-size: 20px;
            }
            .section-title {
                font-size: 20px;
            }
            .contact-form .btn-primary {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
            --primary: #3D7EA6;
            --primary-dark: #2F6388;
            --primary-light: #E8F1F7;
            --accent: #C9A24B;
            --accent-light: #F3E9D2;
            --bg: #F7F9FB;
            --surface: #FFFFFF;
            --text: #2C3E50;
            --text-secondary: #6B7A8D;
            --border: #E3EAF0;
            --dark-bg: #1E2A36;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 2px 8px rgba(40, 60, 80, 0.06);
            --shadow-hover: 0 8px 24px rgba(40, 60, 80, 0.10);
            --transition: 0.25s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        .container,
        .grid-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 800px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            gap: 8px;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(61, 126, 166, 0.32);
            color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            transition: var(--transition);
            gap: 8px;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: #fff;
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(40, 60, 80, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent), #a97e2f);
            border-radius: 8px;
            position: relative;
            box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.3);
            flex-shrink: 0;
        }
        .logo-icon::after {
            content: '';
            position: absolute;
            inset: 8px;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 3px;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            padding: 4px;
            border-radius: 999px;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-chip:hover {
            background: #DCE9F3;
            color: var(--text);
        }
        .nav-chip.active {
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(40, 60, 80, 0.08);
        }
        .btn-header {
            padding: 10px 22px;
            flex-shrink: 0;
        }
        .btn-mobile-cta {
            display: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 1100;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .article-banner {
            padding: 140px 0 56px;
            background: linear-gradient(90deg, rgba(247, 249, 251, 0.96), rgba(232, 241, 247, 0.82)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: #b8c6d0;
        }
        .breadcrumb .current {
            color: var(--text);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 320px;
        }
        .article-banner h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 16px;
            max-width: 800px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .meta-item {
            font-size: 14px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent);
        }
        .article-section {
            padding: 60px 0;
            background: var(--surface);
        }
        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 1.2em;
        }
        .article-content h2 {
            font-size: 28px;
            font-weight: 700;
            margin: 1.8em 0 0.8em;
            line-height: 1.4;
            color: var(--text);
        }
        .article-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin: 1.4em 0 0.6em;
            line-height: 1.4;
            color: var(--text);
        }
        .article-content img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius);
            margin: 1.5em 0;
        }
        .article-content blockquote {
            background: var(--primary-light);
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5em 0;
            color: var(--text-secondary);
            font-style: normal;
        }
        .article-content code {
            background: #EDF2F6;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
        }
        .article-content pre {
            background: var(--dark-bg);
            color: #D6E4F0;
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 1.5em 0;
            font-size: 14px;
            line-height: 1.7;
        }
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }
        .article-content ul,
        .article-content ol {
            margin: 1em 0 1.2em 1.5em;
        }
        .article-content li {
            margin-bottom: 0.4em;
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: var(--accent);
        }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        .article-not-found i {
            font-size: 52px;
            color: var(--accent);
            margin-bottom: 16px;
        }
        .article-not-found p {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .article-pagination {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid var(--border);
        }
        .pagination-card {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 20px 24px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            text-decoration: none;
            transition: var(--transition);
        }
        .pagination-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: transparent;
            background: var(--surface);
        }
        .pagination-card.next {
            text-align: right;
        }
        .pagination-direction {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .pagination-card.next .pagination-direction {
            justify-content: flex-end;
        }
        .pagination-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            transition: color var(--transition);
        }
        .pagination-card:hover .pagination-direction {
            color: var(--accent);
        }
        .pagination-card:hover .pagination-title {
            color: var(--primary);
        }
        .related-section {
            padding: 64px 0;
            background: var(--bg);
            border-top: 1px solid var(--border);
        }
        .section-heading {
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .section-heading h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .news-card-media {
            position: relative;
            display: block;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .news-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-card-media img {
            transform: scale(1.02);
        }
        .news-card-media .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }
        .news-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-body h3 a {
            color: var(--text);
            text-decoration: none;
            transition: color var(--transition);
        }
        .news-card-body h3 a:hover {
            color: var(--primary);
        }
        .news-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex: 1;
        }
        .news-date {
            font-size: 13px;
            color: #9AABBA;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .return-wrap {
            margin-top: 40px;
            text-align: center;
        }
        .site-footer {
            background: var(--dark-bg);
            color: #A0B2C4;
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2.2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #A0B2C4;
            margin-top: 16px;
            max-width: 320px;
        }
        .footer-cols h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-cols ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-cols ul li {
            margin-bottom: 10px;
        }
        .footer-cols ul a {
            color: #A0B2C4;
            text-decoration: none;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-cols ul a:hover {
            color: var(--accent);
        }
        .footer-contact li {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: #A0B2C4;
            margin-bottom: 12px;
        }
        .footer-contact i {
            color: var(--accent);
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #7E93A8;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-banner {
                padding: 120px 0 40px;
            }
        }
        @media (max-width: 640px) {
            .main-nav {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px 24px;
                border-radius: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 30px rgba(40, 60, 80, 0.12);
                gap: 6px;
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-chip {
                width: 100%;
                justify-content: center;
                padding: 12px;
                border-radius: var(--radius-sm);
            }
            .hamburger {
                display: flex;
            }
            .btn-header {
                display: none;
            }
            .btn-mobile-cta {
                display: inline-flex;
                margin-top: 8px;
                width: 100%;
                justify-content: center;
            }
            .article-banner {
                padding: 100px 0 32px;
            }
            .article-banner h1 {
                font-size: 24px;
            }
            .article-content {
                font-size: 15px;
            }
            .article-content h2 {
                font-size: 22px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .article-pagination {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .article-meta {
                gap: 12px;
            }
        }

/* roulang page: category2 */
/* ==========================================================
       设计变量
    ========================================================== */
    :root {
      --primary: #3D7EA6;
      --primary-dark: #2F6388;
      --primary-light: #E8F1F7;
      --accent: #C9A24B;
      --accent-light: #F3E9D2;
      --bg: #F7F9FB;
      --surface: #FFFFFF;
      --text: #2C3E50;
      --text-secondary: #6B7A8D;
      --border: #E3EAF0;
      --dark-bg: #1E2A36;
      --radius-lg: 12px;
      --radius-md: 8px;
      --radius-full: 999px;
      --shadow-sm: 0 2px 8px rgba(40, 60, 80, 0.06);
      --shadow-md: 0 8px 24px rgba(40, 60, 80, 0.10);
      --transition: 0.25s ease;
      --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
    }

    /* ==========================================================
       Reset / Base
    ========================================================== */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: var(--font-family);
      background: var(--bg);
      color: var(--text);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color var(--transition);
    }
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }
    ul, ol {
      list-style: none;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ==========================================================
       按钮
    ========================================================== */
    .btn-primary,
    .btn-secondary,
    .btn-outline-gold {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: var(--radius-md);
      font-size: 15px;
      font-weight: 600;
      line-height: 1.4;
      cursor: pointer;
      border: none;
      transition: all var(--transition);
      text-align: center;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(61, 126, 166, 0.25);
    }
    .btn-secondary {
      background: transparent;
      border: 1.5px solid var(--primary);
      color: var(--primary);
    }
    .btn-secondary:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }
    .btn-outline-gold {
      background: transparent;
      border: 1.5px solid var(--accent);
      color: var(--accent);
    }
    .btn-outline-gold:hover {
      background: var(--accent);
      color: #fff;
      transform: translateY(-2px);
    }
    .btn-block {
      width: 100%;
    }

    /* ==========================================================
       徽章 / Chip
    ========================================================== */
    .badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      font-size: 13px;
      background: var(--accent-light);
      color: var(--accent);
      font-weight: 600;
    }
    .badge-gold {
      background: var(--accent);
      color: #fff;
    }
    .chip-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .chip-item {
      display: inline-block;
      padding: 6px 20px;
      border-radius: var(--radius-full);
      background: var(--primary-light);
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      transition: all var(--transition);
      cursor: default;
    }
    .chip-item:hover {
      background: var(--primary);
      color: #fff;
    }
    .chip-item.solid {
      background: var(--primary);
      color: #fff;
    }

    /* ==========================================================
       Header / Nav
    ========================================================== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.98);
      height: 72px;
      border-bottom: 1px solid var(--border);
      box-shadow: 0 1px 8px rgba(40, 60, 80, 0.04);
      transition: box-shadow var(--transition), background var(--transition);
    }
    .site-header.scrolled {
      box-shadow: 0 4px 20px rgba(40, 60, 80, 0.10);
      background: #fff;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 24px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--accent) 0%, #B8862E 100%);
      position: relative;
      display: inline-block;
      box-shadow: 0 2px 8px rgba(201, 162, 75, 0.4);
    }
    .logo-icon::after {
      content: '';
      position: absolute;
      top: 5px;
      right: 5px;
      width: 10px;
      height: 10px;
      border-radius: 2px;
      background: rgba(255, 255, 255, 0.35);
    }
    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      letter-spacing: 0.5px;
    }
    .logo-text span {
      color: var(--accent);
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 4px;
      background: var(--primary-light);
      padding: 4px;
      border-radius: var(--radius-full);
    }
    .nav-chip {
      padding: 8px 18px;
      border-radius: var(--radius-full);
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      white-space: nowrap;
      transition: all var(--transition);
      line-height: 1.4;
    }
    .nav-chip:hover {
      background: #DCE9F3;
      color: var(--primary);
    }
    .nav-chip.active {
      background: #fff;
      color: var(--primary);
      font-weight: 700;
      box-shadow: 0 2px 6px rgba(40, 60, 80, 0.08);
    }
    .btn-header {
      margin-left: auto;
    }
    .btn-mobile-cta {
      display: none;
    }
    .hamburger {
      display: none;
      width: 40px;
      height: 40px;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: #fff;
      cursor: pointer;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      transition: all var(--transition);
    }
    .hamburger span {
      display: block;
      width: 18px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: all 0.3s ease;
    }
    .hamburger.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .hamburger.open span:nth-child(2) {
      opacity: 0;
    }
    .hamburger.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* 移动端抽屉 */
    .mobile-drawer {
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(4px);
      z-index: 99;
      padding: 32px 24px;
      transform: translateY(-100%);
      opacity: 0;
      visibility: hidden;
      transition: all 0.35s ease;
      overflow-y: auto;
    }
    .mobile-drawer.open {
      transform: translateY(0);
      opacity: 1;
      visibility: visible;
    }
    .mobile-drawer .drawer-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .mobile-drawer .drawer-link {
      padding: 14px 20px;
      border-radius: var(--radius-lg);
      background: var(--bg);
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      transition: all var(--transition);
    }
    .mobile-drawer .drawer-link:hover {
      background: var(--primary-light);
      color: var(--primary);
    }
    .mobile-drawer .drawer-link.active {
      background: var(--primary);
      color: #fff;
    }

    /* ==========================================================
       Hero
    ========================================================== */
    .category-hero {
      margin-top: 72px;
      min-height: 220px;
      background: linear-gradient(120deg, var(--primary-light) 0%, rgba(232, 241, 247, 0.6) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      display: flex;
      align-items: center;
      border-bottom: 1px solid var(--border);
    }
    .category-hero-inner {
      padding: 60px 0 50px;
      width: 100%;
    }
    .category-hero h1 {
      font-size: 32px;
      font-weight: 700;
      color: var(--text);
      line-height: 1.4;
      margin-bottom: 10px;
    }
    .category-hero h1 .highlight {
      color: var(--accent);
      position: relative;
    }
    .category-hero p {
      font-size: 15px;
      color: var(--text-secondary);
      max-width: 640px;
      margin-bottom: 12px;
    }
    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      color: var(--text-secondary);
    }
    .breadcrumb a {
      color: var(--primary);
    }
    .breadcrumb a:hover {
      color: var(--accent);
    }
    .breadcrumb .sep {
      color: #B0C4D8;
    }
    .breadcrumb .current {
      color: var(--text-secondary);
      font-weight: 500;
    }

    /* ==========================================================
       标签导览区
    ========================================================== */
    .tag-guide {
      padding: 48px 0 0;
    }
    .tag-guide .chip-list {
      justify-content: center;
    }
    .tag-guide .chip-item {
      padding: 10px 26px;
      font-size: 15px;
    }

    /* ==========================================================
       分类主体（两栏）
    ========================================================== */
    .category-content {
      padding: 48px 0 80px;
    }
    .category-main-col {
      flex: 0 0 66.6667%;
      max-width: 66.6667%;
      padding-right: 32px;
    }
    .category-side-col {
      flex: 0 0 33.3333%;
      max-width: 33.3333%;
    }
    .intro-block {
      background: var(--surface);
      border-radius: var(--radius-lg);
      padding: 24px 28px;
      margin-bottom: 32px;
      box-shadow: var(--shadow-sm);
      border-left: 4px solid var(--accent);
    }
    .intro-block h2 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text);
    }
    .intro-block p {
      font-size: 15px;
      line-height: 1.9;
      color: var(--text-secondary);
    }

    /* 静态条目列表 */
    .entry-list {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .entry-card {
      display: flex;
      gap: 24px;
      background: var(--surface);
      border-radius: var(--radius-lg);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition);
      align-items: flex-start;
    }
    .entry-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .entry-thumb {
      width: 120px;
      height: 90px;
      object-fit: cover;
      border-radius: var(--radius-md);
      flex-shrink: 0;
    }
    .entry-body {
      flex: 1;
      min-width: 0;
    }
    .entry-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 6px;
      flex-wrap: wrap;
    }
    .entry-meta .badge {
      font-size: 12px;
      padding: 2px 10px;
    }
    .entry-meta time {
      font-size: 12px;
      color: #9BABBC;
    }
    .entry-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 6px;
      line-height: 1.5;
      color: var(--text);
    }
    .entry-body h3 a:hover {
      color: var(--primary);
    }
    .entry-body p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 8px;
    }
    .entry-link {
      font-size: 14px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: all var(--transition);
    }
    .entry-link:hover {
      color: var(--accent);
      gap: 8px;
    }
    .entry-link .arrow {
      transition: transform var(--transition);
    }
    .entry-link:hover .arrow {
      transform: translateX(2px);
    }

    /* ==========================================================
       侧边栏
    ========================================================== */
    .side-card {
      background: var(--surface);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }
    .side-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 16px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border);
      position: relative;
    }
    .side-card h4::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -1px;
      width: 32px;
      height: 3px;
      background: var(--accent);
      border-radius: 2px;
    }
    .side-card .chip-list {
      flex-direction: column;
      gap: 8px;
    }
    .side-card .chip-item {
      background: var(--primary-light);
      color: var(--text-secondary);
      width: 100%;
      padding: 10px 18px;
      font-size: 14px;
      transition: all var(--transition);
      cursor: pointer;
      text-align: left;
    }
    .side-card .chip-item:hover {
      background: var(--primary);
      color: #fff;
    }
    .side-link-list li {
      margin-bottom: 10px;
    }
    .side-link-list a {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      color: var(--text-secondary);
      transition: all var(--transition);
    }
    .side-link-list a i {
      color: var(--accent);
      font-size: 12px;
    }
    .side-link-list a:hover {
      color: var(--primary);
    }
    .side-cta {
      background: var(--dark-bg);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      color: #fff;
      text-align: center;
    }
    .side-cta h4 {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
      border-bottom: none;
      padding-bottom: 0;
    }
    .side-cta h4::after {
      display: none;
    }
    .side-cta p {
      font-size: 13px;
      color: #A0B2C4;
      margin-bottom: 18px;
      line-height: 1.7;
    }

    /* ==========================================================
       FAQ
    ========================================================== */
    .faq-section {
      background: var(--bg);
      padding: 80px 0;
      border-top: 1px solid var(--border);
    }
    .faq-header {
      text-align: center;
      margin-bottom: 48px;
    }
    .faq-header h2 {
      font-size: 30px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 8px;
    }
    .faq-header p {
      font-size: 15px;
      color: var(--text-secondary);
    }
    .accordion {
      background: transparent;
      margin-left: 0;
    }
    .accordion-item {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      margin-bottom: 14px;
      overflow: hidden;
      transition: box-shadow var(--transition);
    }
    .accordion-item:hover {
      box-shadow: var(--shadow-sm);
    }
    .accordion-item.is-active {
      box-shadow: var(--shadow-sm);
      border-left: 3px solid var(--accent);
    }
    .accordion-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text);
      padding: 18px 24px 18px 20px;
      border: none;
      border-radius: var(--radius-lg);
      display: flex;
      align-items: center;
      gap: 12px;
      transition: all var(--transition);
    }
    .accordion-title::before {
      content: '?';
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      flex-shrink: 0;
    }
    .accordion-title:hover,
    .accordion-title:focus {
      background: var(--bg);
      color: var(--primary);
    }
    .accordion-title::after {
      content: '\f078';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      margin-left: auto;
      color: var(--accent);
      transition: transform var(--transition);
    }
    .accordion-item.is-active .accordion-title::after {
      transform: rotate(180deg);
    }
    .accordion-content {
      padding: 4px 24px 20px 60px;
      border: none;
      background: transparent;
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    /* ==========================================================
       底部 CTA
    ========================================================== */
    .category-cta {
      background: var(--accent-light);
      padding: 60px 0;
      text-align: center;
      border-top: 1px solid #E6D5B0;
    }
    .category-cta h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
    }
    .category-cta p {
      font-size: 15px;
      color: var(--text-secondary);
      max-width: 560px;
      margin: 0 auto 28px;
      line-height: 1.8;
    }
    .category-cta .btn-group {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }

    /* ==========================================================
       Footer
    ========================================================== */
    .site-footer {
      background: var(--dark-bg);
      color: #A0B2C4;
      padding-top: 60px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
      gap: 40px;
      padding-bottom: 40px;
    }
    .footer-brand .logo {
      margin-bottom: 16px;
    }
    .footer-brand .logo-text {
      color: #fff;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: #A0B2C4;
      max-width: 300px;
    }
    .footer-cols h4 {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
    }
    .footer-cols ul li {
      margin-bottom: 10px;
      font-size: 14px;
    }
    .footer-cols ul li a {
      color: #A0B2C4;
      transition: color var(--transition);
    }
    .footer-cols ul li a:hover {
      color: var(--accent);
    }
    .footer-contact li {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      color: #A0B2C4;
      font-size: 14px;
      line-height: 1.6;
    }
    .footer-contact li i {
      color: var(--accent);
      margin-top: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 0;
      text-align: center;
      font-size: 13px;
      color: rgba(160, 178, 196, 0.6);
    }

    /* ==========================================================
       响应式
    ========================================================== */
    @media screen and (max-width: 1024px) {
      .main-nav {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .btn-header {
        margin-left: auto;
      }
      .category-main-col,
      .category-side-col {
        flex: 0 0 100%;
        max-width: 100%;
        padding-right: 0;
      }
      .category-side-col {
        margin-top: 40px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }
    @media screen and (max-width: 640px) {
      .site-header {
        height: 64px;
      }
      .logo-text {
        font-size: 18px;
      }
      .btn-header {
        display: none;
      }
      .btn-mobile-cta {
        display: inline-flex;
        padding: 8px 18px;
        font-size: 13px;
        margin-left: 0;
      }
      .category-hero {
        margin-top: 64px;
        min-height: 180px;
      }
      .category-hero-inner {
        padding: 40px 0 36px;
      }
      .category-hero h1 {
        font-size: 26px;
      }
      .category-hero p {
        font-size: 14px;
      }
      .tag-guide {
        padding: 32px 0 0;
      }
      .tag-guide .chip-list {
        overflow-x: auto;
        flex-wrap: nowrap;
        justify-content: flex-start;
        padding-bottom: 8px;
      }
      .tag-guide .chip-item {
        flex-shrink: 0;
        padding: 8px 18px;
        font-size: 14px;
      }
      .category-content {
        padding: 32px 0 56px;
      }
      .intro-block {
        padding: 18px 20px;
      }
      .entry-card {
        flex-direction: column;
        gap: 14px;
        padding: 16px;
      }
      .entry-thumb {
        width: 100%;
        height: 120px;
      }
      .faq-section {
        padding: 56px 0;
      }
      .faq-header h2 {
        font-size: 24px;
      }
      .accordion-title {
        padding: 14px 16px;
        font-size: 15px;
      }
      .accordion-content {
        padding: 4px 16px 16px 24px;
        font-size: 14px;
      }
      .category-cta {
        padding: 48px 0;
      }
      .category-cta h2 {
        font-size: 24px;
      }
      .category-cta .btn-group {
        flex-direction: column;
        align-items: center;
      }
      .category-cta .btn-group .btn-primary,
      .category-cta .btn-group .btn-outline-gold {
        width: 100%;
        max-width: 280px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-brand p {
        max-width: 100%;
      }
    }
    @media screen and (max-width: 360px) {
      .logo-icon {
        width: 32px;
        height: 32px;
      }
      .logo-text {
        font-size: 17px;
      }
      .mobile-drawer .drawer-link {
        font-size: 15px;
      }
    }