/* roulang page: index */
:root {
            --color-primary: #0F4C81;
            --color-secondary: #0F9F8F;
            --color-bg: #F4F8FA;
            --color-card: #FFFFFF;
            --color-alt: #EDF3F7;
            --color-title: #1C2B36;
            --color-body: #3E4E5A;
            --color-muted: #7A8A99;
            --color-disabled: #B0B8C0;
            --color-accent: #F59E0B;
            --color-success: #10B981;
            --color-warning: #F59E0B;
            --color-error: #EF4444;
            --color-footer: #0F2A3D;
            --radius-card: 8px;
            --radius-btn: 6px;
            --shadow-card: 0 1px 2px rgba(16, 26, 40, 0.06);
            --shadow-hover: 0 4px 12px rgba(16, 26, 40, 0.10);
            --font-family: "PingFang SC", "Microsoft YaHei", 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-family);
            background: var(--color-bg);
            color: var(--color-body);
            line-height: 1.7;
            font-size: 15px;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }
        /* ===== Header ===== */
        #siteHeader {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(15, 76, 129, 0.06);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }
        #siteHeader.scrolled {
            background: #fff;
            box-shadow: 0 4px 20px rgba(16, 26, 40, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo {
            display: flex;
            align-items: baseline;
            flex-shrink: 0;
        }
        .logo-main {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
        }
        .logo-sub {
            font-size: 11px;
            font-weight: 400;
            color: var(--color-muted);
            margin-left: 2px;
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: none;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-body);
            border-radius: 6px;
            transition: color 0.2s, background 0.2s;
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
            transition: width 0.25s ease;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(15, 76, 129, 0.04);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 60%;
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            border-radius: 6px;
            color: var(--color-primary);
        }
        .menu-toggle:hover {
            background: rgba(15, 76, 129, 0.06);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            box-shadow: 0 8px 30px rgba(16, 26, 40, 0.12);
            padding: 16px 20px 24px;
            z-index: 99;
            border-bottom: 1px solid rgba(15, 76, 129, 0.06);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu .nav-link {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            border-radius: 8px;
            margin-bottom: 4px;
        }
        .mobile-menu .nav-link::after {
            display: none;
        }
        .mobile-menu .nav-link:hover,
        .mobile-menu .nav-link.active {
            background: rgba(15, 76, 129, 0.06);
            color: var(--color-primary);
        }
        @media (min-width: 768px) {
            .main-nav {
                display: flex;
            }
            .menu-toggle {
                display: none;
            }
        }
        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 6px;
            font-weight: 500;
            font-size: 15px;
            line-height: 1.2;
            transition: all 0.3s ease;
            cursor: pointer;
            text-decoration: none;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0a3a63 100%);
            color: #fff;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #0a3a63 0%, #092740 100%);
            box-shadow: 0 6px 16px rgba(15, 76, 129, 0.30);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(15, 76, 129, 0.20);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border-color: rgba(15, 76, 129, 0.35);
        }
        .btn-outline:hover {
            background: rgba(15, 76, 129, 0.05);
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-white {
            background: #fff;
            color: var(--color-primary);
        }
        .btn-white:hover {
            background: rgba(255, 255, 255, 0.9);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
            transform: translateY(-2px);
        }
        .btn .icon {
            margin-left: 8px;
            font-size: 14px;
        }
        .btn:focus-visible,
        .nav-link:focus-visible,
        .form-input:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #eef4fb 0%, #f7fbfc 45%, #e8f2f5 100%);
            padding: 120px 0 80px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(15, 159, 143, 0.08);
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(15, 76, 129, 0.05);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(15, 76, 129, 0.08);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: 30px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--color-title);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .hero-sub {
            font-size: 16px;
            color: var(--color-body);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid rgba(15, 76, 129, 0.10);
            color: var(--color-body);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 999px;
            box-shadow: var(--shadow-card);
        }
        .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-secondary);
        }
        .hero-image {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(16, 26, 40, 0.10);
        }
        .hero-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        @media (min-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr 1fr;
                gap: 60px;
            }
            .hero h1 {
                font-size: 36px;
            }
        }
        /* ===== Section通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--color-alt);
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-title);
            text-align: center;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-muted);
            text-align: center;
            max-width: 560px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }
        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: #fff;
            border-radius: 8px;
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 76, 129, 0.05);
            transition: box-shadow 0.3s, transform 0.3s;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .stat-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: var(--color-muted);
            margin-top: 6px;
        }
        @media (min-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        /* ===== Services ===== */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .service-card {
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 76, 129, 0.05);
            transition: box-shadow 0.3s, transform 0.3s;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .service-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .service-body {
            padding: 24px;
        }
        .service-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-title);
            margin-bottom: 8px;
        }
        .service-body p {
            font-size: 14px;
            color: var(--color-body);
            line-height: 1.65;
            margin-bottom: 16px;
        }
        .service-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s;
        }
        .service-link:hover {
            gap: 8px;
        }
        @media (min-width: 768px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        /* ===== Pricing ===== */
        .pricing-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            align-items: stretch;
        }
        .price-card {
            background: #fff;
            border-radius: 8px;
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 76, 129, 0.06);
            transition: all 0.3s ease;
            position: relative;
        }
        .price-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .price-card.featured {
            border: 2px solid var(--color-primary);
            transform: scale(1.03);
            box-shadow: 0 8px 30px rgba(15, 76, 129, 0.12);
        }
        .price-card.featured:hover {
            transform: scale(1.03) translateY(-4px);
        }
        .price-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            box-shadow: 0 2px 6px rgba(245, 158, 11, 0.30);
        }
        .price-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-title);
            margin-bottom: 4px;
        }
        .price-desc {
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 16px;
        }
        .price-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 20px;
        }
        .price-features {
            list-style: none;
            text-align: left;
            margin-bottom: 28px;
            padding: 0;
        }
        .price-features li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--color-body);
            padding: 6px 0;
            line-height: 1.5;
        }
        .price-features .check {
            color: var(--color-secondary);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }
        .price-card .btn {
            width: 100%;
        }
        @media (min-width: 768px) {
            .pricing-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
        }
        /* ===== Compare Table ===== */
        .table-wrapper {
            overflow-x: auto;
            border-radius: 8px;
            box-shadow: var(--shadow-card);
            background: #fff;
            border: 1px solid rgba(15, 76, 129, 0.06);
        }
        .compare-table {
            width: 100%;
            min-width: 640px;
            border-collapse: collapse;
            font-size: 14px;
        }
        .compare-table th,
        .compare-table td {
            padding: 16px 20px;
            text-align: center;
            border-bottom: 1px solid rgba(15, 76, 129, 0.06);
        }
        .compare-table thead th {
            background: #F1F5F9;
            font-weight: 600;
            color: var(--color-title);
            font-size: 15px;
        }
        .compare-table tbody td:first-child {
            font-weight: 500;
            color: var(--color-title);
            text-align: left;
            background: #f9fbfc;
        }
        .compare-table tbody tr:hover td {
            background: #F8FAFC;
        }
        .compare-table .yes {
            color: var(--color-secondary);
            font-weight: 600;
        }
        .compare-table .no {
            color: var(--color-disabled);
        }
        .compare-table .highlight {
            background: rgba(15, 76, 129, 0.04);
            border-left: 2px solid var(--color-primary);
            border-right: 2px solid var(--color-primary);
        }
        /* ===== Limited Banner ===== */
        .limited-banner {
            background: linear-gradient(120deg, #0F4C81 0%, #123A5C 60%, #0d2a44 100%);
            border-radius: 12px;
            padding: 48px 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .limited-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px);
            background-size: 20px 20px;
        }
        .limited-banner .content {
            position: relative;
            z-index: 1;
        }
        .limited-banner h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .limited-banner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .countdown {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 32px;
        }
        .countdown-item {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 8px;
            padding: 12px 16px;
            min-width: 68px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .countdown-item span {
            display: block;
            font-size: 30px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .countdown-item small {
            font-size: 12px;
            color: var(--color-muted);
            display: block;
            margin-top: 2px;
        }
        /* ===== News ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .news-card {
            display: block;
            background: #fff;
            border-radius: 8px;
            padding: 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 76, 129, 0.05);
            transition: all 0.3s ease;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .news-category {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-secondary);
            background: rgba(15, 159, 143, 0.08);
            padding: 3px 10px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .news-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-title);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card p {
            font-size: 14px;
            color: var(--color-body);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-date {
            font-size: 12px;
            color: var(--color-muted);
        }
        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 40px 20px;
            background: #fff;
            border-radius: 8px;
            border: 1px dashed rgba(15, 76, 129, 0.20);
            color: var(--color-muted);
            font-size: 15px;
        }
        @media (min-width: 768px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: 8px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 76, 129, 0.05);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-title);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(15, 76, 129, 0.06);
            color: var(--color-primary);
            transition: transform 0.3s;
            font-size: 18px;
        }
        .faq-item.active .faq-question .icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--color-body);
            font-size: 14px;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        /* ===== Contact ===== */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .contact-info {
            padding: 32px;
            background: #fff;
            border-radius: 8px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 76, 129, 0.05);
        }
        .contact-info h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-title);
            margin-bottom: 16px;
        }
        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 16px;
        }
        .contact-item .icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(15, 76, 129, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 16px;
            flex-shrink: 0;
        }
        .contact-item .label {
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 2px;
        }
        .contact-item .value {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-title);
        }
        .contact-form {
            background: #fff;
            border-radius: 8px;
            padding: 32px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 76, 129, 0.05);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-title);
            margin-bottom: 6px;
        }
        .form-input,
        .form-select,
        .form-textarea {
            width: 100%;
            height: 44px;
            border: 1px solid #D0D8E0;
            border-radius: 6px;
            padding: 10px 14px;
            font-size: 14px;
            font-family: inherit;
            color: var(--color-title);
            background: #fff;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
        .form-textarea {
            height: auto;
            min-height: 120px;
            resize: vertical;
            line-height: 1.6;
        }
        .form-input:focus,
        .form-select:focus,
        .form-textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.10);
            outline: none;
        }
        .form-select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237A8A99' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }
        @media (min-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-footer);
            color: rgba(255, 255, 255, 0.75);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            padding: 56px 0 32px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-top: 12px;
            max-width: 320px;
        }
        .footer-brand .logo-main {
            color: #fff;
        }
        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
            }
        }
        /* ===== Animations ===== */
        @keyframes float {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
        }
        .animate-float {
            animation: float 5s ease-in-out infinite;
        }

/* roulang page: category1 */
:root {
            --primary: #0F4C81;
            --primary-dark: #0A3A63;
            --accent: #0F9F8F;
            --bg: #F4F8FA;
            --bg-alt: #EDF3F7;
            --card: #FFFFFF;
            --heading: #1C2B36;
            --body: #3E4E5A;
            --muted: #7A8A99;
            --disabled: #B0B8C0;
            --border: #D0D8E0;
            --amber: #F59E0B;
            --success: #10B981;
            --error: #EF4444;
            --shadow-sm: 0 1px 2px rgba(16, 26, 40, 0.06);
            --shadow-md: 0 4px 12px rgba(16, 26, 40, 0.10);
            --radius: 8px;
            --radius-sm: 6px;
            --transition: all 0.25s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            background-color: var(--bg);
            color: var(--body);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul, ol {
            list-style: none;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* ===== 导航 ===== */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid rgba(208, 216, 224, 0.6);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }
        .main-header.scrolled {
            background: #ffffff;
            box-shadow: 0 4px 20px rgba(15, 76, 129, 0.08);
        }
        .nav-inner {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: baseline;
            gap: 4px;
            line-height: 1.2;
            white-space: nowrap;
        }
        .logo-main {
            font-size: 21px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
        }
        .logo-sub {
            font-size: 12px;
            color: var(--muted);
            font-weight: 500;
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--body);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 76, 129, 0.08);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #ffffff !important;
            font-weight: 500;
            font-size: 14px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(15, 76, 129, 0.25);
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(15, 76, 129, 0.35);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(15, 76, 129, 0.12);
        }
        @media (max-width: 900px) {
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 4px;
                box-shadow: 0 12px 32px rgba(15, 76, 129, 0.15);
                border-bottom: 1px solid var(--border);
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-cta {
                margin-top: 8px;
                justify-content: center;
            }
            .nav-toggle {
                display: flex;
            }
        }

        /* ===== 分类头图 ===== */
        .page-banner {
            position: relative;
            padding: 150px 0 80px;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.88), rgba(15, 159, 143, 0.72)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #ffffff;
            text-align: center;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
            pointer-events: none;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            margin: 0 auto;
        }
        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        .page-banner h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #ffffff;
        }
        .banner-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto;
        }
        .banner-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 26px;
            background: #ffffff;
            color: var(--primary) !important;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 26px;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #ffffff;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #ffffff;
        }
        @media (max-width: 640px) {
            .page-banner {
                padding: 130px 0 60px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .banner-desc {
                font-size: 14px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 60px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 44px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(15, 76, 129, 0.08);
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--heading);
            line-height: 1.35;
            margin-bottom: 14px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .section-head h2 {
                font-size: 22px;
            }
        }

        /* ===== 服务亮点 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 76, 129, 0.3);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.1), rgba(15, 159, 143, 0.12));
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--heading);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 适用场景 ===== */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            background: var(--card);
            border: 1px solid var(--border);
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .scenario-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .scenario-body {
            padding: 24px;
        }
        .scenario-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--heading);
            margin-bottom: 8px;
        }
        .scenario-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        @media (max-width: 900px) {
            .scenarios-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
        }

        /* ===== 服务流程 ===== */
        .process-steps {
            display: flex;
            align-items: stretch;
            gap: 0;
            counter-reset: step;
            margin-bottom: 40px;
        }
        .process-step {
            flex: 1;
            position: relative;
            text-align: center;
            padding: 0 20px;
        }
        .process-step::before {
            content: '';
            position: absolute;
            top: 28px;
            left: calc(50% + 36px);
            right: calc(-50% + 36px);
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0.35;
            z-index: 0;
        }
        .process-step:last-child::before {
            display: none;
        }
        .step-num {
            position: relative;
            z-index: 2;
            width: 56px;
            height: 56px;
            margin: 0 auto 14px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #ffffff;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(15, 76, 129, 0.3);
            counter-increment: step;
        }
        .step-num::after {
            content: counter(step);
        }
        .process-step h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--heading);
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            max-width: 180px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .process-steps {
                flex-direction: column;
                gap: 28px;
            }
            .process-step::before {
                display: none;
            }
            .process-step p {
                max-width: 260px;
            }
        }

        /* ===== 服务内容卡片 ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .service-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 76, 129, 0.25);
        }
        .service-card .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #ffffff;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            margin-bottom: 18px;
        }
        .service-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--heading);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            transition: var(--transition);
        }
        .service-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        @media (max-width: 900px) {
            .service-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 600px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.open {
            border-color: rgba(15, 76, 129, 0.3);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: transparent;
            border: none;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--heading);
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            background: rgba(15, 76, 129, 0.08);
            color: var(--primary);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            background: var(--primary);
            color: #ffffff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        /* ===== CTA横幅 ===== */
        .cta-banner {
            position: relative;
            background: linear-gradient(120deg, var(--primary-dark), var(--primary));
            border-radius: 16px;
            overflow: hidden;
            padding: 56px 48px;
            color: #ffffff;
            text-align: center;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            top: -100px;
            left: -60px;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            bottom: -70px;
            right: -40px;
        }
        .cta-banner h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-banner p {
            font-size: 16px;
            opacity: 0.9;
            margin-bottom: 26px;
        }
        .cta-banner .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: var(--primary) !important;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            position: relative;
            z-index: 2;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
        }
        .cta-banner .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.25);
        }
        @media (max-width: 640px) {
            .cta-banner {
                padding: 40px 24px;
            }
            .cta-banner h2 {
                font-size: 22px;
            }
        }

        /* ===== 相关分类 ===== */
        .related-links {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .related-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--body);
            transition: var(--transition);
        }
        .related-links a:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0F2A3D;
            color: rgba(255, 255, 255, 0.85);
            padding: 64px 0 0;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            flex-direction: column;
            align-items: flex-start;
            gap: 2px;
            margin-bottom: 16px;
        }
        .footer-brand .logo-main {
            color: #ffffff;
        }
        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #ffffff;
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 560px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 图片圆角 ===== */
        .rounded-img {
            border-radius: var(--radius);
        }

/* roulang page: article */
:root {
    --primary: #0F4C81;
    --primary-dark: #0B3A63;
    --accent: #0F9F8F;
    --bg: #F4F8FA;
    --bg-alt: #EDF3F7;
    --card-bg: #FFFFFF;
    --title-color: #1C2B36;
    --text-color: #3E4E5A;
    --muted-color: #7A8A99;
    --border-color: #D0D8E0;
    --radius: 8px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 2px rgba(16,26,40,0.06);
    --shadow-md: 0 4px 12px rgba(16,26,40,0.10);
    --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 15px;
    padding-top: 64px;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
ul, ol { list-style: none; }

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.4;
    gap: 8px;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: rgba(15,76,129,0.08); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--bg-alt); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-lg { padding: 16px 40px; font-size: 16px; border-radius: 8px; }

/* 顶部导航 */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    background: #fff;
    border-bottom: 1px solid rgba(208,216,224,0.5);
    z-index: 100;
    transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(16,26,40,0.08); }
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.logo { display: flex; align-items: baseline; gap: 5px; }
.logo-main { font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: 1px; white-space: nowrap; }
.logo-sub { font-size: 12px; color: var(--muted-color); font-weight: 500; white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 32px; }
.nav-link {
    font-size: 15px;
    color: var(--text-color);
    font-weight: 500;
    padding: 22px 0;
    position: relative;
    white-space: nowrap;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 12px;
    left: 0; right: 0;
    height: 3px;
    border-radius: 3px;
    background: var(--primary);
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; z-index: 110; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--title-color); margin: 5px 0; border-radius: 2px; transition: var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 文章 Hero */
.article-hero {
    position: relative;
    padding: 110px 0 140px;
    background: linear-gradient(135deg, rgba(15,76,129,0.94), rgba(15,159,143,0.82)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    color: #fff;
    overflow: hidden;
}
.article-hero::after {
    content: '';
    position: absolute;
    bottom: -120px; right: -60px;
    width: 320px; height: 320px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
}
.breadcrumb { font-size: 14px; color: rgba(255,255,255,0.85); margin-bottom: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.breadcrumb a { color: rgba(255,255,255,0.85); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { margin: 0 6px; opacity: 0.5; }
.breadcrumb .current { color: #fff; }
.article-hero h1 {
    font-size: 34px;
    font-weight: 700;
    line-height: 1.35;
    max-width: 820px;
    margin-bottom: 20px;
    color: #fff;
    letter-spacing: 0.5px;
}
.article-meta { display: flex; gap: 24px; font-size: 14px; color: rgba(255,255,255,0.85); flex-wrap: wrap; }
.article-meta .meta-item { display: flex; align-items: center; gap: 8px; }
.article-meta .meta-item i { opacity: 0.75; }

/* 正文区域 */
.article-main { padding: 0 0 80px; margin-top: -60px; position: relative; z-index: 2; }
.article-wrap {
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    padding: 56px 64px;
    max-width: 860px;
    margin: 0 auto;
}
.article-content { font-size: 16px; line-height: 1.75; color: var(--text-color); }
.article-content p { margin-bottom: 24px; }
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--title-color);
    margin: 40px 0 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-alt);
}
.article-content h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--title-color);
    margin: 32px 0 12px;
}
.article-content h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--title-color);
    margin: 24px 0 10px;
}
.article-content img { border-radius: var(--radius); margin: 24px 0; max-width: 100%; height: auto; }
.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 16px 20px;
    background: var(--bg);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin: 24px 0;
    color: var(--title-color);
    font-size: 16px;
    line-height: 1.7;
}
.article-content ul, .article-content ol {
    margin: 16px 0 24px;
    padding-left: 24px;
}
.article-content ul li { list-style: disc; margin-bottom: 8px; }
.article-content ol li { list-style: decimal; margin-bottom: 8px; }
.article-content code {
    background: var(--bg-alt);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: "SFMono-Regular", Consolas, monospace;
    font-size: 14px;
    color: var(--primary-dark);
}
.article-content pre {
    background: #1C2B36;
    color: #E6EDF3;
    padding: 20px 24px;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 24px 0;
    line-height: 1.6;
}
.article-content pre code { background: transparent; color: inherit; padding: 0; border-radius: 0; }
.article-content a { border-bottom: 1px solid rgba(15,76,129,0.3); }
.article-content a:hover { border-bottom-color: var(--primary); }

/* 内容未找到 */
.not-found-box {
    text-align: center;
    padding: 80px 32px;
}
.not-found-box h2 { font-size: 24px; font-weight: 700; color: var(--title-color); margin-bottom: 12px; }
.not-found-box p { color: var(--muted-color); margin-bottom: 24px; }

/* 相关推荐 */
.related-section { padding: 80px 0; background: var(--bg); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: 28px; font-weight: 700; color: var(--title-color); }
.section-head p { font-size: 15px; color: var(--muted-color); margin-top: 8px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.related-img { height: 170px; overflow: hidden; }
.related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .related-img img { transform: scale(1.05); }
.related-info { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.related-info h3 { font-size: 16px; font-weight: 600; color: var(--title-color); line-height: 1.5; margin-bottom: 10px; }
.related-info p { font-size: 14px; color: var(--muted-color); line-height: 1.65; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-info .link-more { font-size: 14px; font-weight: 500; color: var(--primary); margin-top: auto; display: inline-flex; align-items: center; gap: 6px; }
.related-info .link-more i { transition: transform 0.3s ease; }
.related-card:hover .link-more i { transform: translateX(4px); }

/* FAQ */
.faq-section { padding: 80px 0; background: var(--bg-alt); }
.faq-list { max-width: 780px; margin: 32px auto 0; }
.faq-item { border: 1px solid var(--border-color); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; background: #fff; transition: border-color 0.3s; }
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.faq-question {
    width: 100%; padding: 18px 20px; font-size: 16px; font-weight: 600;
    color: var(--title-color); background: #fff; border: none; cursor: pointer;
    display: flex; justify-content: space-between; align-items: center; gap: 16px;
    text-align: left; transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 16px;
    transition: transform 0.3s;
    color: var(--muted-color);
    flex-shrink: 0;
}
.faq-item.active .faq-question::after { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer p { padding: 0 20px 20px; color: var(--text-color); font-size: 15px; line-height: 1.7; }

/* CTA */
.cta-section {
    background: linear-gradient(135deg, #0F4C81 0%, #123A5C 100%);
    padding: 72px 0;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -80px; left: 10%;
    width: 260px; height: 260px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
}
.cta-section::after {
    content: '';
    position: absolute;
    bottom: -120px; right: 5%;
    width: 320px; height: 320px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { font-size: 30px; font-weight: 700; margin-bottom: 14px; color: #fff; }
.cta-section p { font-size: 16px; opacity: 0.85; max-width: 640px; margin: 0 auto 36px; line-height: 1.7; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 999px;
    padding: 6px 16px;
    font-size: 13px;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.95);
}
.cta-badge i { color: #F59E0B; }

/* 页脚 */
.site-footer { background: #0F2A3D; color: rgba(255,255,255,0.75); padding: 64px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo .logo-main { color: #fff; }
.footer-brand .logo .logo-sub { color: rgba(255,255,255,0.6); }
.footer-brand p { color: rgba(255,255,255,0.6); line-height: 1.7; font-size: 14px; max-width: 320px; }
.footer-title { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.65); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact p { margin-bottom: 10px; color: rgba(255,255,255,0.65); line-height: 1.6; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

/* 响应式 */
@media (max-width: 1024px) {
    .article-wrap { padding: 40px 36px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .main-nav { gap: 20px; }
}
@media (max-width: 768px) {
    body { padding-top: 56px; }
    .site-header { height: 56px; }
    .nav-toggle { display: block; }
    .main-nav {
        position: fixed;
        top: 56px;
        left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        gap: 0;
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 8px 24px rgba(16,26,40,0.10);
        transform: translateY(-120%);
        transition: transform 0.35s ease;
        align-items: stretch;
    }
    .main-nav.open { transform: translateY(0); }
    .nav-link { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--bg-alt); font-size: 16px; }
    .nav-link:last-child { border-bottom: none; }
    .nav-link.active::after { display: none; }
    .nav-link.active { font-weight: 700; color: var(--primary); }
    .logo-main { font-size: 19px; }
    .logo-sub { font-size: 10px; }
    .article-hero { padding: 90px 0 130px; }
    .article-hero h1 { font-size: 26px; line-height: 1.4; }
    .article-main { margin-top: -50px; }
    .article-wrap { padding: 28px 20px; border-radius: 10px; }
    .article-content { font-size: 15px; line-height: 1.8; }
    .article-content h2 { font-size: 21px; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-section h2 { font-size: 24px; }
    .cta-section p { font-size: 15px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .container { padding: 0 20px; }
}
@media (max-width: 520px) {
    .logo-sub { display: none; }
    .article-meta { gap: 12px; flex-direction: column; }
    .article-hero h1 { font-size: 22px; }
    .related-img { height: 140px; }
}

/* roulang page: category2 */
:root {
            --primary: #0F4C81;
            --primary-dark: #0B3B66;
            --accent: #0F9F8F;
            --bg-light: #F4F8FA;
            --bg-alt: #EDF3F7;
            --text-title: #1C2B36;
            --text-body: #3E4E5A;
            --text-muted: #7A8A99;
            --text-disabled: #B0B8C0;
            --border: #D0D8E0;
            --card-bg: #FFFFFF;
            --radius: 8px;
            --radius-sm: 6px;
            --shadow-sm: 0 1px 2px rgba(16, 26, 40, 0.06);
            --shadow-md: 0 4px 12px rgba(16, 26, 40, 0.10);
            --font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
        }

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

        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

        button {
            font-family: inherit;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            z-index: 100;
            border-bottom: 1px solid transparent;
            transition: box-shadow 0.3s, background 0.3s;
        }

        .site-header.scrolled {
            background: #fff;
            box-shadow: 0 2px 12px rgba(16, 26, 40, 0.08);
            border-color: #E5EBF0;
        }

        .header-inner {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

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

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .logo-main {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
        }

        .logo-sub {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            transition: color 0.2s, background 0.2s;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.10);
            font-weight: 600;
        }

        .header-cta {
            display: flex;
            align-items: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            padding: 11px 22px;
            transition: all 0.2s ease;
            cursor: pointer;
            border: 1px solid transparent;
            text-align: center;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(15, 76, 129, 0.25);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(15, 76, 129, 0.2);
        }

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

        .btn-outline:hover {
            background: rgba(15, 76, 129, 0.06);
            transform: translateY(-1px);
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background: #F0F4F8;
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            cursor: pointer;
            position: relative;
            z-index: 110;
            padding: 8px;
        }

        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-title);
            margin: 4px auto;
            transition: all 0.3s;
            border-radius: 2px;
        }

        .menu-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .section {
            padding: 80px 0;
        }

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

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(15, 159, 143, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .card {
            background: var(--card-bg);
            border: 1px solid rgba(208, 216, 224, 0.6);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s;
        }

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

        .category-hero {
            position: relative;
            min-height: 440px;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            overflow: hidden;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }

        .category-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.90), rgba(15, 159, 143, 0.78));
        }

        .category-hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 660px;
        }

        .category-hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.4);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .category-hero h1 {
            font-size: 38px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .category-hero p {
            font-size: 16px;
            line-height: 1.7;
            opacity: 0.95;
            margin-bottom: 32px;
        }

        .category-hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .benefit-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.10), rgba(15, 159, 143, 0.10));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .benefit-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .benefit-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .level-card {
            position: relative;
            text-align: center;
            padding: 32px 24px;
        }

        .level-card.featured {
            border: 2px solid var(--primary);
            transform: scale(1.03);
            box-shadow: 0 8px 24px rgba(15, 76, 129, 0.12);
            z-index: 2;
        }

        .level-card.featured:hover {
            transform: scale(1.03) translateY(-4px);
        }

        .level-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .level-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .level-threshold {
            font-size: 13px;
            color: var(--text-muted);
            background: var(--bg-light);
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
        }

        .level-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            text-align: left;
        }

        .level-list li {
            font-size: 14px;
            color: var(--text-body);
            padding: 6px 0 6px 24px;
            position: relative;
        }

        .level-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: 700;
        }

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

        .step-item {
            text-align: center;
            padding: 32px 24px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid rgba(208, 216, 224, 0.6);
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .step-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .service-card {
            display: block;
            overflow: hidden;
            padding: 0;
        }

        .service-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform 0.4s;
        }

        .service-card:hover img {
            transform: scale(1.05);
        }

        .service-card-body {
            padding: 20px 24px 24px;
        }

        .service-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .service-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .service-link::after {
            content: "→";
            transition: transform 0.2s;
        }

        .service-card:hover .service-link::after {
            transform: translateX(4px);
        }

        .scenario-card {
            background: #fff;
            border: 1px solid rgba(208, 216, 224, 0.6);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s;
        }

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

        .scenario-card .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(15, 76, 129, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .scenario-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid rgba(208, 216, 224, 0.6);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.2s;
        }

        .faq-item.active {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-icon {
            width: 18px;
            height: 18px;
            transition: transform 0.3s;
            position: relative;
            flex-shrink: 0;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: opacity 0.3s;
        }

        .faq-icon::before {
            width: 18px;
            height: 2px;
            top: 8px;
            left: 0;
        }

        .faq-icon::after {
            width: 2px;
            height: 18px;
            top: 0;
            left: 8px;
        }

        .faq-item.active .faq-icon::after {
            opacity: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        .cta-banner {
            background: linear-gradient(135deg, #0F4C81, #123A5C);
            position: relative;
            padding: 72px 0;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
            background-size: 16px 16px;
        }

        .cta-banner .container {
            position: relative;
            z-index: 2;
        }

        .cta-banner h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-banner p {
            font-size: 16px;
            opacity: 0.9;
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .site-footer {
            background: #0F2A3D;
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand .logo-main {
            color: #fff;
        }

        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }

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

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

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

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .category-hero {
                min-height: 380px;
                padding: 100px 0 48px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .menu-toggle {
                display: block;
            }

            .header-cta {
                display: none;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                box-shadow: 0 12px 24px rgba(16, 26, 40, 0.10);
                transform: translateY(-200%);
                transition: transform 0.3s ease;
                z-index: 105;
                border-radius: 0 0 16px 16px;
                gap: 4px;
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .main-nav .nav-link {
                padding: 12px 14px;
                font-size: 15px;
                border-radius: 8px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .category-hero-actions .btn {
                width: 100%;
            }
        }

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

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-hero-actions {
                flex-direction: column;
            }
        }