/* roulang page: index */
:root {
            --primary: #5A8FB4;
            --dark: #1F3A5F;
            --accent: #F26B3A;
            --accent-light: #FFE8D9;
            --bg: #F6F9FC;
            --card-bg: #FFFFFF;
            --border: #E5EDF4;
            --text: #1F2D3D;
            --text-secondary: #54687A;
            --text-muted: #9AABBC;
            --text-disabled: #C2D0DC;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 18px rgba(31, 58, 95, 0.06);
            --shadow-hover: 0 10px 30px rgba(31, 58, 95, 0.10);
            --transition: all 0.3s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        .container-custom {
            max-width: 1280px;
            padding-left: 32px;
            padding-right: 32px;
            margin-left: auto;
            margin-right: auto;
        }
        .container-wide {
            max-width: 1380px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* ==================== 侧边栏（桌面端） ==================== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: 240px;
            height: 100vh;
            background: #FFFFFF;
            border-right: 1px solid #E8EFF5;
            z-index: 1040;
            display: flex;
            flex-direction: column;
            padding: 0;
        }

        .sidebar .brand {
            height: 72px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            border-bottom: 1px solid var(--border);
            gap: 12px;
        }

        .brand-logo {
            width: 32px;
            height: 32px;
            background: var(--dark);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
            letter-spacing: 0;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .brand-text small {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--text-muted);
            line-height: 1.2;
            letter-spacing: 0.08em;
        }

        .side-nav {
            flex: 1;
            padding: 24px 12px;
            overflow-y: auto;
        }

        .side-nav .nav-label {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            padding: 8px 16px 8px 12px;
            font-weight: 600;
        }

        .side-nav a {
            display: flex;
            align-items: center;
            height: 44px;
            padding: 0 16px;
            border-radius: 8px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            margin-bottom: 4px;
            gap: 12px;
            transition: var(--transition);
            position: relative;
        }

        .side-nav a i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .side-nav a:hover {
            background: rgba(90, 143, 180, 0.08);
            color: var(--text);
        }
        .side-nav a:hover i {
            color: var(--primary);
        }

        .side-nav a.active {
            background: rgba(90, 143, 180, 0.12);
            color: var(--dark);
            font-weight: 600;
        }
        .side-nav a.active::before {
            content: "";
            position: absolute;
            left: -12px;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: var(--primary);
            border-radius: 0 3px 3px 0;
        }
        .side-nav a.active i {
            color: var(--primary);
        }

        .sidebar-bottom {
            padding: 24px 20px;
            border-top: 1px solid var(--border);
        }
        .sidebar-bottom .service-time {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .sidebar-bottom .social-icons {
            display: flex;
            gap: 10px;
        }
        .sidebar-bottom .social-icons a {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: var(--transition);
        }
        .sidebar-bottom .social-icons a:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ==================== 移动端顶部导航 ==================== */
        .mobile-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            z-index: 1050;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-header .brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mobile-header .brand-text {
            font-size: 17px;
        }

        .hamburger-btn {
            width: 42px;
            height: 42px;
            border: none;
            background: transparent;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text);
            transition: var(--transition);
        }
        .hamburger-btn:hover {
            background: rgba(90, 143, 180, 0.08);
        }
        .hamburger-btn i {
            font-size: 22px;
        }

        /* 抽屉菜单遮罩 */
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(31, 58, 95, 0.45);
            z-index: 1051;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .drawer-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        /* 抽屉菜单 */
        .drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 280px;
            height: 100vh;
            background: #FFFFFF;
            z-index: 1052;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
            padding: 20px 0 0;
            box-shadow: 2px 0 12px rgba(0, 0, 0, 0.06);
        }
        .drawer.active {
            transform: translateX(0);
        }

        .drawer .drawer-header {
            padding: 8px 20px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .drawer .drawer-header .brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .drawer .drawer-close {
            width: 34px;
            height: 34px;
            border: none;
            background: var(--bg);
            border-radius: 8px;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
        }
        .drawer .drawer-close:hover {
            background: var(--accent-light);
            color: var(--accent);
        }

        .drawer nav {
            flex: 1;
            padding: 24px 16px 16px;
            overflow-y: auto;
        }

        .drawer nav a {
            display: flex;
            align-items: center;
            height: 48px;
            padding: 0 14px;
            border-radius: 8px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            gap: 12px;
            transition: var(--transition);
        }
        .drawer nav a:hover {
            background: rgba(90, 143, 180, 0.06);
            color: var(--dark);
        }
        .drawer nav a.active {
            background: rgba(90, 143, 180, 0.12);
            color: var(--dark);
            font-weight: 600;
        }
        .drawer nav a i {
            width: 18px;
            text-align: center;
            color: var(--text-muted);
        }

        .drawer .drawer-cta {
            padding: 16px 20px 24px;
            border-top: 1px solid var(--border);
        }

        /* ==================== 主内容区 ==================== */
        .main-wrapper {
            margin-left: 240px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .content-area {
            flex: 1;
        }

        /* ==================== 通用板块 ==================== */
        .section-block {
            padding: 80px 0;
        }

        .section-label {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .section-label .num {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            opacity: 0.6;
        }
        .section-title {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 600;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.7;
        }

        /* ==================== 按钮 ==================== */
        .btn-accent {
            background: var(--accent);
            color: #FFFFFF !important;
            border: none;
            border-radius: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(242, 107, 58, 0.25);
        }
        .btn-accent:hover {
            background: #D9592B;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(242, 107, 58, 0.35);
            color: #fff !important;
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--dark) !important;
            border: 1.5px solid var(--dark);
            border-radius: 8px;
            padding: 11px 26px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .btn-outline-dark:hover {
            background: var(--dark);
            color: #fff !important;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(31, 58, 95, 0.18);
        }

        .btn-outline-primary {
            background: transparent;
            color: var(--primary) !important;
            border: 1.5px solid var(--primary);
            border-radius: 8px;
            padding: 11px 26px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff !important;
            transform: translateY(-2px);
        }

        /* ==================== Hero ==================== */
        .hero-section {
            position: relative;
            padding: 100px 0 100px;
            background: linear-gradient(135deg, rgba(246, 249, 252, 0.92), rgba(214, 230, 242, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .hero-section .container-custom {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(90, 143, 180, 0.2);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            color: var(--dark);
            font-weight: 500;
            margin-bottom: 20px;
            gap: 8px;
        }
        .hero-badge i {
            color: var(--accent);
        }

        .hero-title {
            font-size: clamp(34px, 5vw, 52px);
            font-weight: 700;
            color: var(--dark);
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 18px;
        }
        .hero-title .highlight {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .hero-meta {
            display: flex;
            gap: 32px;
            margin-top: 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .hero-meta-item i {
            color: var(--primary);
        }

        .hero-data-card {
            background: #FFFFFF;
            border-radius: 16px;
            box-shadow: 0 12px 40px rgba(31, 58, 95, 0.12);
            padding: 28px 32px;
            border: 1px solid rgba(229, 237, 244, 0.8);
            max-width: 320px;
            position: relative;
            z-index: 3;
            margin-left: auto;
        }
        .hero-data-card .data-value {
            font-size: 42px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .hero-data-card .data-value small {
            font-size: 18px;
            color: var(--text-muted);
            font-weight: 400;
            margin-left: 4px;
        }
        .hero-data-card .data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .hero-data-card .divider {
            width: 24px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
            margin: 14px 0;
        }

        /* ==================== 服务卡片 ==================== */
        .services-section {
            background: var(--bg);
        }

        .service-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 0;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            border: 1px solid rgba(229, 237, 244, 0.6);
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .service-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--bg);
        }
        .service-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .service-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .service-card .card-img-wrap .badge-float {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 500;
            z-index: 2;
            box-shadow: 0 4px 12px rgba(242, 107, 58, 0.3);
        }

        .service-card .card-body {
            padding: 22px 22px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .service-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .service-card .card-title i {
            color: var(--primary);
            font-size: 16px;
        }

        .service-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 14px;
            flex: 1;
        }

        .service-card .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }
        .service-card .tag {
            background: rgba(90, 143, 180, 0.08);
            color: var(--primary);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 999px;
            font-weight: 500;
            border: 1px solid rgba(90, 143, 180, 0.12);
        }

        .service-card .card-footer-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        .service-card .price {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
        }
        .service-card .price .unit {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 400;
            margin-left: 2px;
        }

        .service-card .card-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            background: none;
            border: none;
            padding: 4px 8px;
            cursor: pointer;
        }
        .service-card .card-link:hover {
            color: var(--accent);
        }

        /* 宽卡 */
        .service-card.wide-card {
            flex-direction: row;
        }
        .service-card.wide-card .card-img-wrap {
            width: 48%;
            aspect-ratio: auto;
            flex-shrink: 0;
        }
        .service-card.wide-card .card-img-wrap img {
            height: 100%;
            aspect-ratio: auto;
        }
        .service-card.wide-card .card-body {
            padding: 28px;
        }
        .service-card.wide-card .card-title {
            font-size: 22px;
        }
        .service-card.wide-card .card-desc {
            font-size: 15px;
        }

        /* ==================== 评价轮播 ==================== */
        .testimonials-section {
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .testimonial-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 28px;
            height: 100%;
            position: relative;
            border: 1px solid rgba(229, 237, 244, 0.8);
            transition: var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .testimonial-card .quote-mark {
            font-size: 48px;
            line-height: 1;
            color: rgba(90, 143, 180, 0.25);
            position: absolute;
            top: 12px;
            right: 18px;
            font-family: Georgia, serif;
        }
        .testimonial-card .stars {
            color: var(--accent);
            font-size: 14px;
            margin-bottom: 12px;
            display: flex;
            gap: 2px;
        }
        .testimonial-card .stars i {
            color: var(--accent);
        }
        .testimonial-card .testimonial-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }
        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(90, 143, 180, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            flex-shrink: 0;
        }
        .testimonial-card .author-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            line-height: 1.3;
        }
        .testimonial-card .author-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 轮播箭头 */
        .carousel-control-custom {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            background: #FFFFFF;
            border-radius: 50%;
            box-shadow: 0 4px 14px rgba(31, 58, 95, 0.12);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            z-index: 3;
            cursor: pointer;
            transition: var(--transition);
            font-size: 16px;
        }
        .carousel-control-custom:hover {
            background: var(--primary);
            color: #fff;
        }
        .testimonial-carousel .carousel-control-prev {
            left: -20px;
        }
        .testimonial-carousel .carousel-control-next {
            right: -20px;
        }

        .carousel-indicators-custom {
            display: flex;
            justify-content: center;
            gap: 6px;
            margin-top: 24px;
        }
        .carousel-indicators-custom button {
            width: 28px;
            height: 4px;
            border-radius: 4px;
            border: none;
            background-color: var(--border);
            transition: var(--transition);
            cursor: pointer;
            padding: 0;
        }
        .carousel-indicators-custom button.active {
            background-color: var(--primary);
            width: 36px;
        }

        .testimonial-carousel {
            position: relative;
            padding: 0 0 40px;
        }

        /* ==================== 保障条 ==================== */
        .guarantees-section {
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: 40px 0;
        }

        .guarantee-item {
            text-align: center;
            padding: 24px 16px;
        }
        .guarantee-item .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(90, 143, 180, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--primary);
            font-size: 20px;
            border: 1px solid rgba(90, 143, 180, 0.12);
        }
        .guarantee-item .g-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .guarantee-item .g-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ==================== 资讯列表 ==================== */
        .news-section {
            background: var(--bg);
        }

        .news-list {
            border-radius: var(--radius);
            background: var(--card-bg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid rgba(229, 237, 244, 0.5);
        }

        .news-row {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 22px 28px;
            transition: var(--transition);
            border-bottom: 1px solid var(--border);
            position: relative;
            color: inherit;
            text-decoration: none !important;
        }
        .news-row:last-child {
            border-bottom: none;
        }
        .news-row:hover {
            background: rgba(90, 143, 180, 0.05);
            box-shadow: inset 3px 0 0 var(--primary);
        }

        .news-date {
            background: var(--bg);
            border-radius: 10px;
            padding: 10px 14px;
            text-align: center;
            min-width: 70px;
            border: 1px solid var(--border);
            flex-shrink: 0;
        }
        .news-date .day {
            display: block;
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.1;
        }
        .news-date .month {
            display: block;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-content h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: var(--transition);
        }
        .news-row:hover .news-content h3 {
            color: var(--primary);
        }
        .news-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-category {
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 999px;
            flex-shrink: 0;
            font-weight: 500;
        }

        .news-arrow {
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .news-row:hover .news-arrow {
            transform: translateX(4px);
        }

        .empty-state {
            border: 1px dashed var(--text-disabled);
            border-radius: var(--radius);
            padding: 32px;
            text-align: center;
            color: var(--text-muted);
            font-size: 14px;
            background: #FBFCFE;
        }

        /* ==================== CTA横幅 ==================== */
        .cta-banner {
            background: var(--dark);
            position: relative;
            overflow: hidden;
            border-radius: 20px;
            padding: 60px 50px;
            margin: 80px 32px 0;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent) 0%, transparent 60%);
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            right: -60px;
            bottom: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(242, 107, 58, 0.08);
        }

        .cta-banner .cta-title {
            font-size: clamp(24px, 3.5vw, 36px);
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.3;
            position: relative;
            z-index: 2;
        }
        .cta-banner .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            position: relative;
            z-index: 2;
            max-width: 560px;
            line-height: 1.7;
        }

        .cta-banner .cta-trust {
            display: flex;
            gap: 24px;
            margin-top: 28px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }
        .cta-banner .cta-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .cta-banner .cta-trust i {
            color: var(--accent);
        }

        /* ==================== FAQ ==================== */
        .faq-section {
            background: var(--bg);
        }

        .faq-wrapper {
            max-width: 860px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: 0 2px 10px rgba(31, 58, 95, 0.03);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-item .accordion-button {
            background: transparent !important;
            font-size: 16px;
            font-weight: 500;
            color: var(--dark);
            padding: 20px 24px;
            border: none;
            box-shadow: none !important;
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .faq-item .accordion-button:not(.collapsed) {
            color: var(--dark);
            background: rgba(90, 143, 180, 0.04) !important;
        }
        .faq-item .accordion-button .faq-icon {
            color: var(--primary);
            font-size: 18px;
            font-weight: 600;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item .accordion-button:not(.collapsed) .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }
        .faq-item .accordion-button::after {
            display: none;
        }

        .faq-item .accordion-body {
            padding: 0 24px 20px 62px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            background: rgba(90, 143, 180, 0.02);
        }

        /* ==================== 页脚 ==================== */
        .site-footer {
            background: #16293F;
            color: rgba(255, 255, 255, 0.6);
            padding: 64px 0 24px;
            margin-top: 40px;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .site-footer .brand-logo {
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
        }
        .site-footer .brand-text {
            color: #FFFFFF;
        }
        .site-footer .brand-text small {
            color: rgba(255, 255, 255, 0.4);
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }

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

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a:hover {
            color: #FFFFFF;
            text-decoration: underline;
            text-decoration-color: var(--accent);
            text-underline-offset: 4px;
            text-decoration-thickness: 2px;
        }
        .site-footer .footer-links a i {
            font-size: 12px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 48px;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            margin-bottom: 10px;
        }
        .footer-contact li i {
            color: var(--primary);
            width: 18px;
            text-align: center;
        }

        /* ==================== Modal ==================== */
        .modal-content {
            border-radius: 16px;
            border: none;
            box-shadow: 0 20px 60px rgba(31, 58, 95, 0.15);
            overflow: hidden;
        }
        .modal-header {
            border-bottom: 1px solid var(--border);
            padding: 20px 28px;
        }
        .modal-header .modal-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--dark);
        }
        .modal-body {
            padding: 28px;
        }
        .modal-footer {
            border-top: 1px solid var(--border);
            padding: 16px 28px;
        }

        .form-control,
        .form-select {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text);
            background: #FFFFFF;
            transition: var(--transition);
            font-family: var(--font-stack);
        }
        .form-control:focus,
        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(90, 143, 180, 0.18);
            outline: none;
            color: var(--text);
        }

        .form-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }

        /* ==================== 响应式 ==================== */
        @media (max-width: 991.98px) {
            .sidebar {
                display: none !important;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 60px;
            }

            .section-block {
                padding: 48px 0;
            }

            .container-custom,
            .container-wide {
                padding-left: 20px;
                padding-right: 20px;
            }

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

            .hero-data-card {
                margin-left: 0;
                margin-top: 32px;
                max-width: 100%;
            }

            .service-card.wide-card {
                flex-direction: column;
            }
            .service-card.wide-card .card-img-wrap {
                width: 100%;
                aspect-ratio: 16/10;
            }
            .service-card.wide-card .card-img-wrap img {
                aspect-ratio: 16/10;
                height: 100%;
            }

            .cta-banner {
                margin: 48px 16px 0;
                padding: 40px 28px;
            }

            .news-row {
                padding: 18px 20px;
                gap: 16px;
            }
            .news-date {
                min-width: 56px;
                padding: 8px 10px;
            }
            .news-date .day {
                font-size: 20px;
            }
        }

        @media (max-width: 767.98px) {
            .section-block {
                padding: 40px 0;
            }

            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 15px;
            }

            .guarantee-item {
                padding: 16px 8px;
            }

            .news-content p {
                display: none;
            }
            .news-content h3 {
                font-size: 15px;
                white-space: normal;
            }
            .news-category {
                display: none;
            }
            .news-arrow {
                margin-left: auto;
            }

            .cta-banner {
                padding: 32px 20px;
            }
            .cta-banner .cta-trust {
                gap: 12px;
                flex-direction: column;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 575.98px) {
            .container-custom,
            .container-wide {
                padding-left: 16px;
                padding-right: 16px;
            }

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

            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .hero-meta {
                gap: 16px;
                font-size: 13px;
            }

            .section-subtitle {
                font-size: 14px;
                margin-bottom: 28px;
            }

            .service-card .card-body {
                padding: 18px 16px;
            }

            .news-date {
                min-width: 50px;
            }
            .news-row {
                padding: 16px;
                gap: 12px;
            }

            .faq-item .accordion-button {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-item .accordion-body {
                padding: 0 18px 16px 46px;
            }

            .testimonial-carousel .carousel-control-prev {
                left: 0;
            }
            .testimonial-carousel .carousel-control-next {
                right: 0;
            }
        }

        /* 自定义焦点状态 */
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 3px rgba(90, 143, 180, 0.18);
        }

        .btn-accent:focus-visible,
        .btn-outline-dark:focus-visible,
        .btn-outline-primary:focus-visible {
            outline: 2px solid var(--dark);
            outline-offset: 2px;
            box-shadow: 0 0 0 3px rgba(31, 58, 95, 0.18);
        }

        /* Bootstrap 常规链接色覆盖 */
        a.text-primary {
            color: var(--primary) !important;
        }
        .carousel-item {
            transition: transform 0.55s ease-in-out;
        }

/* roulang page: category1 */
:root {
            --primary: #5A8FB4;
            --primary-light: rgba(90, 143, 180, 0.10);
            --primary-lighter: rgba(90, 143, 180, 0.18);
            --dark: #1F3A5F;
            --accent: #F26B3A;
            --accent-hover: #D9592B;
            --accent-light: #FFE8D9;
            --bg: #F6F9FC;
            --card-bg: #FFFFFF;
            --border: #E5EDF4;
            --text: #1F2D3D;
            --text-secondary: #54687A;
            --text-muted: #9AABBC;
            --disabled: #C2D0DC;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 18px rgba(31, 58, 95, 0.06);
            --shadow-hover: 0 10px 30px rgba(31, 58, 95, 0.10);
            --transition: 0.3s ease;
            --sidebar-width: 240px;
            --mobile-header-height: 60px;
        }

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

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: var(--dark);
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(242, 107, 58, 0.25);
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--dark);
            border-color: var(--dark);
        }

        .btn-outline-dark:hover {
            background: var(--dark);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn:focus-visible,
        .btn:focus {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            box-shadow: 0 0 0 4px var(--primary-lighter);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .btn-block {
            width: 100%;
        }

        @media (max-width: 575.98px) {
            .btn {
                width: 100%;
            }
        }

        /* 徽章 */
        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            font-size: 12px;
            line-height: 1.4;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--dark);
            font-weight: 500;
        }

        .badge-hot {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
        }

        .badge-light-blue {
            background: rgba(90, 143, 180, 0.12);
            color: var(--primary);
        }

        /* 侧边导航 */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #F9FBFD;
            border-right: 1px solid var(--border);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 0;
        }

        .brand-area {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            min-height: 72px;
        }

        .brand-logo {
            width: 36px;
            height: 36px;
            min-width: 36px;
            border-radius: 8px;
            background: var(--dark);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .brand-text small {
            display: block;
            font-size: 10px;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.06em;
            margin-top: 2px;
        }

        .side-menu {
            padding: 16px 12px;
            flex: 1;
        }

        .nav-label {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 8px 12px 12px;
        }

        .side-menu a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 44px;
            padding: 0 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-left: 3px solid transparent;
            transition: var(--transition);
            margin-bottom: 4px;
        }

        .side-menu a.nav-link i {
            width: 18px;
            text-align: center;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .side-menu a.nav-link:hover {
            background: rgba(90, 143, 180, 0.08);
            color: var(--dark);
        }

        .side-menu a.nav-link.active {
            background: var(--primary-light);
            color: var(--primary);
            border-left-color: var(--primary);
            font-weight: 600;
        }

        .side-menu a.nav-link.active i {
            color: var(--primary);
        }

        .side-bottom {
            padding: 20px 24px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .side-bottom .tel {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-bottom .tel i {
            color: var(--primary);
        }

        /* 移动端顶栏 */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--mobile-header-height);
            background: #fff;
            border-bottom: 1px solid var(--border);
            z-index: 1050;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-brand .brand-logo {
            width: 32px;
            height: 32px;
            min-width: 32px;
            font-size: 15px;
            border-radius: 7px;
        }

        .mobile-brand .brand-text {
            font-size: 17px;
        }

        .hamburger {
            width: 44px;
            height: 44px;
            background: transparent;
            border: none;
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
        }

        .hamburger span {
            width: 22px;
            height: 2px;
            background: var(--dark);
            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);
        }

        /* 抽屉 */
        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(31, 58, 95, 0.4);
            z-index: 1055;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .drawer-overlay.show {
            display: block;
            opacity: 1;
        }

        .drawer-menu {
            position: fixed;
            top: 0;
            left: -320px;
            width: 280px;
            height: 100%;
            background: #fff;
            z-index: 1060;
            box-shadow: 4px 0 30px rgba(31, 58, 95, 0.15);
            padding: 20px;
            transition: left 0.35s ease;
            overflow-y: auto;
        }

        .drawer-menu.open {
            left: 0;
        }

        .drawer-head {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }

        .drawer-head .brand-logo {
            width: 32px;
            height: 32px;
            min-width: 32px;
            font-size: 15px;
            border-radius: 7px;
        }

        .drawer-head .brand-text {
            font-size: 16px;
        }

        .drawer-close {
            margin-left: auto;
            background: transparent;
            border: none;
            font-size: 24px;
            color: var(--text-muted);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .drawer-close:hover {
            background: var(--primary-light);
            color: var(--dark);
        }

        .drawer-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            margin-bottom: 6px;
        }

        .drawer-link i {
            width: 18px;
            text-align: center;
            color: var(--text-muted);
        }

        .drawer-link:hover,
        .drawer-link.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        .drawer-link.active {
            font-weight: 600;
        }

        .drawer-cta {
            display: block;
            text-align: center;
            margin-top: 24px;
            background: var(--accent);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }

        .drawer-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
        }

        /* 主内容 */
        .main-wrap {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            padding: 0 0 60px;
        }

        .main-wrap .container-custom {
            padding-top: 40px;
        }

        /* 面包屑 */
        .breadcrumb-area {
            margin-bottom: 32px;
        }

        .breadcrumb-area .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 6px;
        }

        .breadcrumb-area .breadcrumb li+li::before {
            content: "/";
            margin-right: 6px;
            color: var(--disabled);
        }

        .breadcrumb-area .breadcrumb a {
            color: var(--text-secondary);
        }

        .breadcrumb-area .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb-area .breadcrumb li.current {
            color: var(--text);
            font-weight: 500;
        }

        /* 分类页头 */
        .category-header {
            padding: 40px 0 8px;
        }

        .category-header h1 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            color: var(--dark);
            line-height: 1.25;
            margin: 0 0 12px;
            letter-spacing: 0.01em;
        }

        .category-header h1 span {
            color: var(--primary);
        }

        .category-header .category-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 820px;
            margin-bottom: 8px;
        }

        /* 区块标题 */
        .section-heading {
            display: flex;
            align-items: baseline;
            gap: 12px;
            margin-bottom: 28px;
        }

        .section-heading .sec-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.05em;
        }

        .section-heading h2 {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 600;
            color: var(--dark);
            line-height: 1.3;
            margin: 0;
        }

        .section-heading .sec-note {
            font-size: 13px;
            color: var(--text-muted);
            margin-left: auto;
        }

        /* 行式服务卡片 */
        .service-row-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            margin-top: 8px;
        }

        .service-row-card {
            display: flex;
            align-items: stretch;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .service-row-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .service-row-card .row-card-img {
            width: 320px;
            min-width: 320px;
            overflow: hidden;
        }

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

        .service-row-card:hover .row-card-img img {
            transform: scale(1.03);
        }

        .service-row-card .row-card-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .service-row-card .row-card-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--dark);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .service-row-card .row-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 14px;
        }

        .service-row-card .row-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }

        .service-row-card .text-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .service-row-card .text-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        @media (max-width: 991.98px) {
            .service-row-card .row-card-img {
                width: 260px;
                min-width: 260px;
            }
        }

        @media (max-width: 767.98px) {
            .service-row-card {
                flex-direction: column;
            }

            .service-row-card .row-card-img {
                width: 100%;
                min-width: 100%;
                height: 200px;
            }

            .service-row-card .row-card-body {
                padding: 20px;
            }
        }

        @media (max-width: 575.98px) {
            .service-row-card .row-card-img {
                height: 160px;
            }
        }

        /* 适用场景 */
        .scenario-section {
            padding: 60px 0 0;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .scenario-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
        }

        .scenario-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .scenario-item .scenario-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 14px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
        }

        .scenario-item h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .scenario-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }

        @media (max-width: 991.98px) {
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 服务流程 */
        .process-section {
            padding: 60px 0 0;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .process-item {
            position: relative;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px 24px;
            transition: var(--transition);
        }

        .process-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .process-item .process-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            line-height: 1;
        }

        .process-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark);
            margin: 0 0 8px;
        }

        .process-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        .process-item::after {
            content: "";
            position: absolute;
            top: 40px;
            right: -10px;
            width: 20px;
            height: 2px;
            background: var(--border);
        }

        .process-item:last-child::after {
            display: none;
        }

        @media (max-width: 991.98px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-item::after {
                display: none;
            }
        }

        @media (max-width: 575.98px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ 手风琴 */
        .faq-section {
            padding: 60px 0 0;
        }

        .custom-accordion {
            background: transparent;
            border: none;
        }

        .custom-accordion .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .custom-accordion .accordion-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .custom-accordion .accordion-button {
            background: transparent;
            border: none;
            font-size: 16px;
            font-weight: 500;
            color: var(--dark);
            padding: 18px 22px;
            box-shadow: none;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }

        .custom-accordion .accordion-button::before {
            content: "";
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            margin-right: 14px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            content: "+";
            line-height: 1;
            transition: var(--transition);
        }

        .custom-accordion .accordion-button:not(.collapsed)::before {
            content: "−";
            background: var(--primary);
            color: #fff;
        }

        .custom-accordion .accordion-button:not(.collapsed) {
            background: rgba(90, 143, 180, 0.05);
            color: var(--dark);
        }

        .custom-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }

        .custom-accordion .accordion-body {
            padding: 0 22px 20px 56px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            background: rgba(90, 143, 180, 0.02);
        }

        .custom-accordion .accordion-button::after {
            display: none;
        }

        /* CTA 条 */
        .cta-strip {
            margin-top: 60px;
            background: #EAF2F8;
            border-radius: var(--radius);
            padding: 32px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            border: 1px solid rgba(90, 143, 180, 0.15);
        }

        .cta-strip .cta-text h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--dark);
            margin: 0 0 6px;
        }

        .cta-strip .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .cta-strip .btn-accent {
            min-width: 160px;
        }

        @media (max-width: 767.98px) {
            .cta-strip {
                padding: 24px;
                flex-direction: column;
                text-align: center;
            }

            .cta-strip .btn-accent {
                width: 100%;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            margin-top: 80px;
            padding: 56px 0 0;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand .brand-logo {
            background: var(--accent);
        }

        .site-footer .footer-brand .brand-text {
            color: #fff;
            font-size: 18px;
        }

        .site-footer .footer-brand .brand-text small {
            color: rgba(255, 255, 255, 0.5);
        }

        .site-footer .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 340px;
            margin-bottom: 0;
        }

        .site-footer .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

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

        .site-footer .footer-links li {
            margin-bottom: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .site-footer .footer-links li i {
            font-size: 10px;
            margin-right: 6px;
            color: var(--primary);
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

        .site-footer .footer-links a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-color: var(--accent);
            text-underline-offset: 4px;
        }

        .site-footer .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .site-footer .footer-contact li i {
            margin-top: 5px;
            width: 14px;
        }

        .site-footer .footer-bottom {
            margin-top: 40px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 模态框 */
        .modal-content {
            border-radius: 16px;
            border: none;
            box-shadow: 0 20px 50px rgba(31, 58, 95, 0.2);
        }

        .modal-header {
            border-bottom: 1px solid var(--border);
            padding: 20px 24px;
        }

        .modal-header .modal-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark);
        }

        .modal-header .btn-close {
            background: transparent;
            opacity: 0.6;
            font-size: 14px;
        }

        .modal-body {
            padding: 24px;
        }

        .modal-body label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 6px;
            display: block;
            font-weight: 500;
        }

        .modal-body .form-control,
        .modal-body .form-select {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            font-size: 14px;
            color: var(--text);
            background: #fff;
            transition: var(--transition);
        }

        .modal-body .form-control:focus,
        .modal-body .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-lighter);
            outline: none;
        }

        .modal-body .form-control::placeholder {
            color: var(--disabled);
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .side-nav {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .main-wrap {
                margin-left: 0;
                padding-top: var(--mobile-header-height);
            }

            .main-wrap .container-custom {
                padding: 24px 20px 0;
            }

            .site-footer {
                margin-top: 60px;
            }
        }

        @media (max-width: 575.98px) {
            .main-wrap .container-custom {
                padding: 20px 16px 0;
            }

            .category-header h1 {
                font-size: 26px;
            }

            .section-heading {
                flex-wrap: wrap;
            }

            .section-heading .sec-note {
                width: 100%;
                margin-left: 0;
            }

            .service-row-card .row-card-body {
                padding: 18px;
            }

            .cta-strip .cta-text h3 {
                font-size: 19px;
            }
        }

/* roulang page: article */
:root {
            --primary: #5A8FB4;
            --primary-dark: #4A7A9E;
            --primary-light: rgba(90, 143, 180, 0.10);
            --primary-border: rgba(90, 143, 180, 0.35);
            --dark: #1F3A5F;
            --accent: #F26B3A;
            --accent-dark: #D9592B;
            --accent-light: #FFE8D9;
            --bg-main: #F6F9FC;
            --bg-sidebar: #F9FBFD;
            --bg-card: #FFFFFF;
            --border: #E5EDF4;
            --text-main: #1F2D3D;
            --text-secondary: #54687A;
            --text-muted: #9AABBC;
            --text-disabled: #C2D0DC;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-badge: 999px;
            --shadow-sm: 0 2px 8px rgba(31, 58, 95, 0.04);
            --shadow-card: 0 4px 18px rgba(31, 58, 95, 0.06);
            --shadow-hover: 0 10px 30px rgba(31, 58, 95, 0.10);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            margin: 0;
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            background: var(--bg-main);
            color: var(--text-main);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--accent);
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.35;
            color: var(--dark);
            font-weight: 600;
        }

        p {
            margin: 0 0 1em;
        }

        ul,
        ol {
            margin: 0 0 1em 1.25rem;
            padding: 0;
        }

        .layout-wrap {
            display: flex;
            min-height: 100vh;
            width: 100%;
        }

        .layout-sidebar {
            width: 240px;
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease;
        }

        .layout-sidebar .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 72px;
            padding: 0 20px;
            border-bottom: 1px solid var(--border);
            flex-shrink: 0;
        }

        .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--dark);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .side-nav {
            flex: 1;
            padding: 24px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }

        .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--text-muted);
            padding: 0 8px;
            margin-bottom: 10px;
            font-weight: 500;
        }

        .side-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 44px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background 0.2s ease, color 0.2s ease;
            position: relative;
        }

        .side-nav a i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .side-nav a:hover {
            background: rgba(90, 143, 180, 0.06);
            color: var(--dark);
        }

        .side-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .side-nav a.active::before {
            content: "";
            position: absolute;
            left: 0;
            top: 10px;
            bottom: 10px;
            width: 3px;
            background: var(--primary);
            border-radius: 0 3px 3px 0;
        }

        .side-nav a.active i {
            color: var(--primary);
        }

        .sidebar-bottom {
            padding: 16px 20px;
            border-top: 1px solid var(--border);
            flex-shrink: 0;
        }

        .sidebar-time {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-cta {
            display: block;
            text-align: center;
            padding: 10px 16px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            transition: background 0.25s ease, transform 0.25s ease;
        }

        .sidebar-cta:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
        }

        .layout-main {
            margin-left: 240px;
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
            width: 100%;
        }

        .mobile-header {
            display: none;
        }

        .mobile-drawer,
        .drawer-overlay {
            display: none;
        }

        .article-page {
            padding: 44px 0 80px;
            min-height: 70vh;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 28px;
            flex-wrap: wrap;
            max-width: 860px;
            margin-left: auto;
            margin-right: auto;
        }

        .breadcrumb-list a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .breadcrumb-list .sep {
            color: var(--text-disabled);
            font-size: 12px;
        }

        .breadcrumb-list .current {
            color: var(--text-secondary);
            max-width: 420px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-header {
            max-width: 860px;
            margin: 0 auto 36px;
        }

        .article-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .article-meta i {
            margin-right: 5px;
            color: var(--text-disabled);
        }

        .article-meta .badge-category {
            background: var(--accent-light);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            display: inline-block;
        }

        .article-body {
            max-width: 860px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-main);
            padding-bottom: 16px;
        }

        .article-body::after {
            content: "";
            display: block;
            height: 1px;
            background: var(--border);
            margin-top: 48px;
        }

        .article-body h2 {
            font-size: 25px;
            font-weight: 600;
            color: var(--dark);
            margin: 50px 0 18px;
            padding-bottom: 8px;
            position: relative;
        }

        .article-body h2::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 20px;
            background: var(--primary);
            border-radius: 4px;
            margin-right: 10px;
            vertical-align: -3px;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--dark);
            margin: 36px 0 14px;
        }

        .article-body p {
            margin-bottom: 20px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: #EAF2F8;
            padding: 18px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 28px 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        .article-body img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            margin: 28px auto;
            max-width: 100%;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 22px;
            padding-left: 22px;
        }

        .article-body li {
            margin-bottom: 8px;
            line-height: 1.8;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--accent);
        }

        .article-body code {
            background: #EFF3F7;
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 14px;
            color: var(--dark);
        }

        .article-body pre {
            background: #F1F5F9;
            border-radius: var(--radius-md);
            padding: 18px 22px;
            overflow-x: auto;
            margin-bottom: 22px;
        }

        .article-body pre code {
            background: none;
            padding: 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 24px;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-body th {
            background: var(--bg-sidebar);
            font-weight: 600;
            color: var(--dark);
        }

        .article-tags-share {
            max-width: 860px;
            margin: 36px auto 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 18px;
        }

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

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 12px;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            transition: border-color 0.2s, color 0.2s;
        }

        .tag-item:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .article-share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 14px;
            transition: all 0.25s ease;
        }

        .article-share a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .related-section {
            max-width: 860px;
            margin: 48px auto 0;
        }

        .related-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-title::before {
            content: "";
            width: 4px;
            height: 22px;
            background: var(--primary);
            border-radius: 4px;
            display: inline-block;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .related-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .related-card-body {
            padding: 16px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-card-title {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-main);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s;
        }

        .related-card:hover .related-card-title {
            color: var(--primary);
        }

        .related-card-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: auto;
        }

        .article-return {
            max-width: 860px;
            margin: 32px auto 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 28px;
            font-size: 14px;
        }

        .article-return a {
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
            font-weight: 500;
            transition: color 0.2s;
        }

        .article-return a:hover {
            color: var(--accent);
        }

        .article-return a i {
            font-size: 13px;
            transition: transform 0.2s;
        }

        .article-return a:hover i {
            transform: translateX(-3px);
        }

        .article-empty {
            max-width: 640px;
            margin: 100px auto;
            text-align: center;
            background: var(--bg-card);
            border: 1px dashed var(--text-disabled);
            border-radius: var(--radius-md);
            padding: 60px 40px;
        }

        .article-empty-icon {
            font-size: 48px;
            color: var(--text-disabled);
            margin-bottom: 20px;
        }

        .article-empty h2 {
            font-size: 24px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .article-empty a {
            display: inline-block;
            padding: 10px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            transition: background 0.25s, transform 0.25s;
            margin-top: 8px;
        }

        .article-empty a:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
        }

        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 56px 0 0;
            font-size: 14px;
            line-height: 1.7;
            margin-top: auto;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand .brand-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            font-weight: 700;
        }

        .site-footer .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .site-footer .brand-text small {
            display: block;
            font-size: 10px;
            letter-spacing: 0.12em;
            color: rgba(255, 255, 255, 0.5);
            font-weight: 400;
            margin-top: 2px;
        }

        .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 340px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
            font-size: 13px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            transition: color 0.2s, padding-left 0.2s;
            padding-left: 0;
        }

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

        .footer-links a i {
            font-size: 11px;
            margin-right: 4px;
            color: rgba(255, 255, 255, 0.35);
            transition: color 0.2s;
        }

        .footer-links a:hover i {
            color: var(--accent);
        }

        .footer-contact i {
            display: inline-block;
            width: 18px;
            color: var(--accent);
            margin-right: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 44px;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .btn {
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            outline: none;
            box-shadow: none;
            transition: all 0.25s ease;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            text-decoration: none;
            letter-spacing: 0.02em;
        }

        .btn-accent {
            background: var(--accent);
            border-radius: var(--radius-sm);
            color: #fff;
            min-height: 44px;
            transition: all 0.25s ease;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(242, 107, 58, 0.25);
        }

        .btn-dark-outline {
            background: transparent;
            border: 1px solid var(--dark);
            color: var(--dark);
        }

        .btn-dark-outline:hover {
            background: var(--dark);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-block {
            width: 100%;
            display: flex;
        }

        /* ---------- 焦点状态 ---------- */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(90, 143, 180, 0.18);
        }

        /* ---------- 响应式：<992px ---------- */
        @media (max-width: 991.98px) {
            .layout-sidebar {
                display: none;
            }

            .layout-main {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
                align-items: center;
                justify-content: space-between;
                height: 60px;
                background: #fff;
                border-bottom: 1px solid var(--border);
                padding: 0 20px;
                position: sticky;
                top: 0;
                z-index: 1050;
            }

            .mobile-brand {
                display: flex;
                align-items: center;
                gap: 10px;
                color: var(--dark);
                font-size: 17px;
                font-weight: 700;
                text-decoration: none;
            }

            .mobile-brand-icon {
                width: 28px;
                height: 28px;
                background: var(--dark);
                color: #fff;
                border-radius: 6px;
                display: flex;
                align-items: center;
                justify-content: center;
                font-size: 14px;
                font-weight: 700;
            }

            .mobile-toggle {
                display: flex;
                flex-direction: column;
                justify-content: center;
                gap: 5px;
                width: 44px;
                height: 44px;
                border: none;
                background: transparent;
                cursor: pointer;
                padding: 10px 8px;
                border-radius: 6px;
                transition: background 0.2s, transform 0.3s ease;
                align-items: center;
            }

            .mobile-toggle:hover {
                background: rgba(90, 143, 180, 0.06);
            }

            .mobile-toggle .bar {
                display: block;
                width: 22px;
                height: 2px;
                background: var(--text-main);
                border-radius: 2px;
                transition: transform 0.3s ease, opacity 0.3s ease;
            }

            .mobile-toggle.active .bar:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }

            .mobile-toggle.active .bar:nth-child(2) {
                opacity: 0;
            }

            .mobile-toggle.active .bar:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }

            .mobile-drawer {
                display: flex;
                flex-direction: column;
                position: fixed;
                left: 0;
                top: 0;
                bottom: 0;
                width: 280px;
                background: var(--bg-sidebar);
                z-index: 1100;
                transform: translateX(-100%);
                transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                box-shadow: 4px 0 24px rgba(31, 58, 95, 0.08);
            }

            .mobile-drawer.open {
                transform: translateX(0);
            }

            .drawer-overlay {
                display: block;
                position: fixed;
                inset: 0;
                background: rgba(31, 45, 61, 0.45);
                z-index: 1050;
                opacity: 0;
                visibility: hidden;
                transition: opacity 0.3s ease, visibility 0.3s ease;
            }

            .drawer-overlay.open {
                opacity: 1;
                visibility: visible;
            }

            .drawer-inner {
                display: flex;
                flex-direction: column;
                height: 100%;
            }

            .drawer-brand {
                display: flex;
                align-items: center;
                gap: 12px;
                padding: 20px;
                border-bottom: 1px solid var(--border);
            }

            .drawer-brand .brand-badge {
                width: 36px;
                height: 36px;
                background: var(--dark);
                color: #fff;
                border-radius: 8px;
                display: flex;
                align-items: center;
                justify-content: center;
                font-size: 16px;
                font-weight: 700;
            }

            .drawer-brand-name {
                font-size: 17px;
                font-weight: 700;
                color: var(--dark);
            }

            .drawer-brand-sub {
                font-size: 10px;
                color: var(--text-muted);
                letter-spacing: 0.1em;
            }

            .drawer-nav {
                flex: 1;
                padding: 20px 12px;
                display: flex;
                flex-direction: column;
                gap: 4px;
            }

            .drawer-nav a {
                display: flex;
                align-items: center;
                gap: 12px;
                height: 44px;
                padding: 0 16px;
                border-radius: var(--radius-sm);
                font-size: 14px;
                font-weight: 500;
                color: var(--text-secondary);
                transition: background 0.2s, color 0.2s;
            }

            .drawer-nav a i {
                width: 18px;
                text-align: center;
                color: var(--text-muted);
            }

            .drawer-nav a:hover {
                background: rgba(90, 143, 180, 0.06);
                color: var(--dark);
            }

            .drawer-nav a.active {
                background: var(--primary-light);
                color: var(--primary);
                font-weight: 600;
                border-left: 3px solid var(--primary);
                border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            }

            .drawer-nav a.active i {
                color: var(--primary);
            }

            .drawer-footer {
                padding: 16px 20px;
                border-top: 1px solid var(--border);
            }

            .container-custom {
                padding: 0 24px;
            }

            .article-page {
                padding: 32px 0 60px;
            }

            .breadcrumb-list {
                margin-bottom: 22px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .related-card:last-child {
                display: none;
            }
        }

        /* ---------- 响应式：<768px ---------- */
        @media (max-width: 767.98px) {
            .related-grid {
                grid-template-columns: 1fr;
            }

            .related-card:last-child {
                display: flex;
            }

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

            .article-body {
                font-size: 15px;
            }

            .article-tags-share {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-bottom {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }

            .site-footer {
                padding-top: 40px;
            }
        }

        /* ---------- 响应式：<576px ---------- */
        @media (max-width: 575.98px) {
            .container-custom {
                padding: 0 20px;
            }

            .article-page {
                padding: 24px 0 48px;
            }

            .breadcrumb-list {
                font-size: 12px;
                gap: 6px;
            }

            .breadcrumb-list .current {
                max-width: 160px;
            }

            .article-meta {
                gap: 10px 14px;
                font-size: 12px;
            }

            .article-body {
                line-height: 1.8;
            }

            .article-body h2 {
                font-size: 20px;
                margin-top: 38px;
            }

            .article-body h3 {
                font-size: 18px;
            }

            .article-body blockquote {
                padding: 14px 18px;
                font-size: 14px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .related-card img {
                height: 120px;
            }

            .article-return {
                flex-direction: column;
                gap: 4px;
            }

            .article-return a {
                padding: 6px 0;
            }

            .mobile-header {
                padding: 0 16px;
            }

            .container-custom {
                padding: 0 16px;
            }

            .footer-bottom {
                gap: 6px;
            }
        }