/* roulang page: index */
:root {
            --primary: #1A2333;
            --primary-dark: #141C29;
            --accent: #C9A96A;
            --accent-light: #D9BC82;
            --accent-dark: #B39258;
            --secondary: #3E6B6B;
            --bg-light: #F6F4EF;
            --bg-white: #FFFFFF;
            --text-primary: #2D3239;
            --text-secondary: #6B7280;
            --text-on-dark: #F0EDE6;
            --text-on-dark-dim: #A0A7B3;
            --border-light: #E5E0D8;
            --border-dark: #2E3A4E;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 5px;
            --shadow-sm: 0 2px 8px rgba(26, 35, 51, 0.06);
            --shadow-lg: 0 8px 24px rgba(26, 35, 51, 0.10);
            --transition: 0.2s ease;
            --font-main: system-ui, "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
            --font-num: Inter, "DIN Alternate", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        /* ========== 导航 ========== */
        .main-nav {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: var(--primary);
            border-bottom: 1px solid rgba(201, 169, 106, 0.2);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            flex: 1;
        }

        .nav-links.left {
            justify-content: flex-start;
        }

        .nav-links.right {
            justify-content: flex-end;
        }

        .nav-link {
            color: var(--text-on-dark);
            font-size: 16px;
            font-weight: 500;
            position: relative;
            padding: 8px 2px;
            transition: color var(--transition);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition);
            border-radius: 2px;
        }

        .nav-link:hover {
            color: var(--accent);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 20px;
        }

        .nav-link.active {
            color: var(--accent);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-on-dark);
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.02em;
            padding: 0 20px;
            flex-shrink: 0;
        }

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

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-on-dark);
            width: 42px;
            height: 42px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            background: var(--primary-dark);
            padding: 16px 24px;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 1029;
            border-bottom: 1px solid rgba(201, 169, 106, 0.2);
        }

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

        .mobile-menu a {
            display: block;
            color: var(--text-on-dark);
            padding: 12px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--accent);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background: linear-gradient(rgba(20, 28, 41, 0.82), rgba(26, 35, 51, 0.88)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 100px 0;
            min-height: 75vh;
            display: flex;
            align-items: center;
        }

        .hero-inner {
            text-align: center;
            color: var(--text-on-dark);
            width: 100%;
        }

        .hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
            color: var(--text-on-dark);
        }

        .hero-divider {
            width: 60px;
            height: 2px;
            background: var(--accent);
            margin: 0 auto 20px;
            border-radius: 2px;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-on-dark-dim);
            max-width: 720px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .hero-cta {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .btn-primary-custom {
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(201, 169, 106, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover {
            background: var(--accent-light);
            box-shadow: 0 4px 12px rgba(201, 169, 106, 0.4);
            transform: translateY(-2px);
        }

        .btn-primary-custom:active {
            background: var(--accent-dark);
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(201, 169, 106, 0.2);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--text-on-dark);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-weight: 500;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            color: var(--accent);
        }

        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            max-width: 900px;
            margin: 0 auto;
        }

        .metric-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 24px 16px;
            text-align: center;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .metric-num {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-on-dark-dim);
            line-height: 1.4;
        }

        /* ========== 服务矩阵 ========== */
        .section {
            padding: 80px 0;
        }

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

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-head .tag-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 4px;
            height: 20px;
            background: var(--accent);
            border-radius: 2px;
            margin-right: 8px;
            vertical-align: -3px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-head .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(201, 169, 106, 0.4);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background: rgba(201, 169, 106, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .service-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }

        .service-link:hover {
            color: var(--accent);
        }

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

        .service-link i {
            transition: transform var(--transition);
            font-size: 12px;
        }

        /* ========== 对比区 ========== */
        .comparison-section {
            background: var(--bg-white);
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .comparison-card {
            border-radius: var(--radius-lg);
            padding: 32px;
            background: var(--bg-light);
            border: 1px solid var(--border-light);
        }

        .comparison-card.highlight {
            background: #EDF3F3;
            border-top: 2px solid var(--accent);
        }

        .comparison-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .comparison-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
        }

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

        .comparison-list li {
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            gap: 12px;
            font-size: 15px;
            line-height: 1.6;
            color: var(--text-primary);
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-dim {
            font-size: 13px;
            color: var(--text-secondary);
            min-width: 70px;
            flex-shrink: 0;
            padding-top: 2px;
        }

        .comparison-val {
            flex: 1;
        }

        .highlight .comparison-val {
            font-weight: 500;
        }

        .highlight-tag {
            display: inline-block;
            background: rgba(201, 169, 106, 0.2);
            color: var(--accent-dark);
            font-size: 11px;
            font-weight: 600;
            padding: 2px 6px;
            border-radius: 4px;
            margin-left: 6px;
            vertical-align: 1px;
        }

        /* ========== 最新资讯 ========== */
        .news-section {
            background: var(--bg-light);
        }

        .news-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .news-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
            border-radius: var(--radius-md);
        }

        .news-item:first-child {
            padding-top: 0;
        }

        .news-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: #E8E5DF;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            transition: color var(--transition);
        }

        .news-item:hover .news-content h3 {
            color: var(--accent-dark);
        }

        .news-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .news-meta .date {
            font-family: var(--font-num);
        }

        .news-meta .cat {
            background: rgba(62, 107, 107, 0.12);
            color: var(--secondary);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            font-size: 12px;
        }

        .news-meta .read-more {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .news-meta .read-more:hover {
            color: var(--accent-dark);
        }

        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-secondary);
            font-size: 15px;
        }

        .news-empty i {
            font-size: 36px;
            color: var(--border-light);
            display: block;
            margin-bottom: 12px;
        }

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

        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: var(--bg-white);
        }

        .accordion-item:last-child {
            margin-bottom: 0;
        }

        .accordion-button {
            width: 100%;
            background: transparent;
            border: none;
            padding: 18px 24px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: background var(--transition);
        }

        .accordion-button:hover {
            background: #FAF8F4;
        }

        .accordion-button .icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            transition: transform 0.3s ease;
            font-size: 16px;
            font-style: normal;
            font-weight: 400;
        }

        .accordion-item.open .accordion-button .icon {
            transform: rotate(45deg);
        }

        .accordion-body {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .accordion-item.open {
            background: #FAF8F4;
            box-shadow: var(--shadow-sm);
        }

        /* ========== 表单区 ========== */
        .contact-section {
            background: var(--primary);
        }

        .contact-section .section-head h2 {
            color: var(--text-on-dark);
        }

        .contact-section .section-sub {
            color: var(--text-on-dark-dim);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            max-width: 980px;
            margin: 0 auto;
            align-items: stretch;
        }

        .contact-form-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-lg);
        }

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

        .form-control {
            height: 44px;
            border: 1px solid #E0DDD6;
            border-radius: var(--radius-md);
            font-size: 15px;
            padding: 0 14px;
            color: var(--text-primary);
            background: var(--bg-white);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            width: 100%;
        }

        .form-control:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(201, 169, 106, 0.2);
        }

        textarea.form-control {
            height: auto;
            min-height: 100px;
            padding: 12px 14px;
            resize: vertical;
            line-height: 1.6;
        }

        .btn-submit {
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: var(--radius-md);
            padding: 12px 36px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(201, 169, 106, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-submit:hover {
            background: var(--accent-light);
            box-shadow: 0 4px 12px rgba(201, 169, 106, 0.4);
            transform: translateY(-2px);
        }

        .btn-submit:active {
            background: var(--accent-dark);
            transform: translateY(0);
        }

        .contact-info {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-direction: column;
            justify-content: center;
            color: var(--text-on-dark);
        }

        .contact-info h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--text-on-dark);
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 18px;
        }

        .contact-info-item:last-child {
            margin-bottom: 0;
        }

        .contact-info-item .ci-icon {
            width: 38px;
            height: 38px;
            background: rgba(201, 169, 106, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 16px;
            flex-shrink: 0;
        }

        .contact-info-item .ci-text {
            font-size: 15px;
            line-height: 1.5;
            color: var(--text-on-dark);
        }

        .contact-info-item .ci-label {
            font-size: 13px;
            color: var(--text-on-dark-dim);
            display: block;
            margin-bottom: 2px;
        }

        /* ========== 页脚 ========== */
        .footer {
            background: var(--primary-dark);
            color: #A7AEB8;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #A7AEB8;
            max-width: 260px;
        }

        .footer h4 {
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

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

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

        .footer-links a {
            color: #A7AEB8;
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .footer-contact-item {
            display: flex;
            gap: 10px;
            font-size: 14px;
            margin-bottom: 12px;
            color: #A7AEB8;
            line-height: 1.5;
        }

        .footer-contact-item i {
            color: var(--accent);
            margin-top: 4px;
            font-size: 13px;
            width: 16px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding: 20px 0;
            font-size: 13px;
            color: #6E7580;
            text-align: center;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .section {
                padding: 56px 0;
            }

            .hero h1 {
                font-size: 32px;
            }

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

            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-logo {
                margin: 0 auto;
            }

            .nav-container {
                justify-content: space-between;
            }

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

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

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

        @media (max-width: 767.98px) {
            .hero {
                padding: 64px 0;
                min-height: auto;
            }

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

            .hero-subtitle {
                font-size: 16px;
            }

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

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

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

            .news-item {
                flex-direction: column;
            }

            .news-thumb {
                width: 100%;
                height: 180px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .section {
                padding: 48px 0;
            }

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

            .metric-item {
                padding: 16px 12px;
            }

            .metric-num {
                font-size: 26px;
            }

            .contact-form-card,
            .contact-info {
                padding: 24px;
            }
        }

        @media (max-width: 375px) {
            .hero-metrics {
                grid-template-columns: 1fr;
            }

            .nav-logo {
                font-size: 18px;
            }

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

            .comparison-card {
                padding: 20px;
            }
        }

/* roulang page: article */
:root{
    --primary:#1A2333;
    --primary-light:#2E3A4E;
    --accent:#C9A96A;
    --accent-hover:#D9BC82;
    --accent-active:#B39258;
    --secondary:#3E6B6B;
    --bg-light:#F6F4EF;
    --bg-white:#FFFFFF;
    --text-main:#2D3239;
    --text-secondary:#6B7280;
    --text-on-dark:#F0EDE6;
    --text-dark-secondary:#A0A7B3;
    --border:#E5E0D8;
    --border-dark:#2E3A4E;
    --radius-lg:16px;
    --radius-md:10px;
    --radius-sm:5px;
    --shadow-card:0 2px 8px rgba(26,35,51,0.06);
    --shadow-hover:0 8px 24px rgba(26,35,51,0.10);
    --transition:0.2s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    font-family:system-ui,"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.7;
    color:var(--text-main);
    background:var(--bg-light);
    margin:0;
    padding:0;
    -webkit-font-smoothing:antialiased;
}
.container{
    max-width:1200px;
    padding-left:24px;
    padding-right:24px;
    margin:0 auto;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit}

/* ========== NAV ========== */
.main-nav{
    background:var(--primary);
    position:sticky;
    top:0;
    z-index:1030;
    height:72px;
    border-bottom:1px solid rgba(201,169,106,0.2);
}
.nav-container{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:100%;
    position:relative;
}
.nav-logo{
    display:flex;
    align-items:center;
    gap:10px;
    color:var(--text-on-dark);
    font-size:22px;
    font-weight:700;
    letter-spacing:0.02em;
    transition:color var(--transition);
    flex-shrink:0;
}
.nav-logo:hover{color:var(--accent)}
.logo-icon{
    width:38px;
    height:38px;
    background:rgba(201,169,106,0.15);
    border:1px solid rgba(201,169,106,0.4);
    border-radius:var(--radius-md);
    display:flex;
    align-items:center;
    justify-content:center;
    color:var(--accent);
    font-size:16px;
}
.nav-links{
    display:flex;
    gap:36px;
    align-items:center;
}
.nav-links a{
    color:rgba(240,237,230,0.75);
    font-size:16px;
    font-weight:500;
    padding:24px 0;
    position:relative;
    transition:color var(--transition);
}
.nav-links a:hover{color:var(--accent)}
.nav-links a.active{color:var(--accent)}
.nav-links a::after{
    content:'';
    position:absolute;
    bottom:16px;
    left:50%;
    transform:translateX(-50%);
    width:0;
    height:2px;
    background:var(--accent);
    border-radius:1px;
    transition:width var(--transition);
}
.nav-links a:hover::after,
.nav-links a.active::after{width:20px}
.nav-toggle{
    display:none;
    background:none;
    border:none;
    color:var(--text-on-dark);
    font-size:20px;
    cursor:pointer;
    padding:8px;
    line-height:1;
}

/* ========== BREADCRUMB ========== */
.breadcrumb-area{
    background:#fff;
    border-bottom:1px solid var(--border);
    padding:14px 0;
}
.breadcrumb{
    margin:0;
    background:transparent;
    padding:0;
    display:flex;
    flex-wrap:wrap;
    gap:6px;
    font-size:14px;
    color:var(--text-secondary);
}
.breadcrumb-item{
    display:flex;
    align-items:center;
    gap:6px;
}
.breadcrumb-item a{color:var(--text-secondary);transition:color var(--transition)}
.breadcrumb-item a:hover{color:var(--accent)}
.breadcrumb-item+.breadcrumb-item::before{
    content:'/';
    color:rgba(107,114,128,0.5);
    padding:0 2px;
}
.breadcrumb-item.active{color:var(--text-main);font-weight:500;display:block;max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ========== ARTICLE MAIN ========== */
.article-main{
    background:var(--bg-light);
    padding:56px 0 72px;
}
.article-wrap{
    max-width:760px;
    margin:0 auto;
    background:#fff;
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-card);
    padding:48px 56px;
}
.article-header{
    text-align:center;
    margin-bottom:32px;
}
.article-header h1{
    font-size:32px;
    font-weight:700;
    line-height:1.3;
    color:var(--text-main);
    letter-spacing:0.02em;
    margin:0 0 16px;
}
.article-meta{
    display:flex;
    justify-content:center;
    flex-wrap:wrap;
    gap:18px;
    font-size:14px;
    color:var(--text-secondary);
    margin-bottom:20px;
}
.meta-item{
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.meta-item i{color:var(--accent);font-size:13px}
.article-summary{
    font-size:15px;
    color:var(--text-secondary);
    line-height:1.8;
    background:var(--bg-light);
    border-radius:var(--radius-md);
    padding:16px 20px;
    border-left:3px solid var(--accent);
    text-align:left;
    margin:0 0 8px;
}
.article-divider{
    height:1px;
    background:var(--border);
    margin:24px 0 36px;
}

/* ========== ARTICLE BODY ========== */
.article-body{
    font-size:16px;
    line-height:1.8;
    color:var(--text-main);
    word-wrap:break-word;
}
.article-body p{
    margin-bottom:24px;
}
.article-body h2{
    font-size:24px;
    font-weight:600;
    color:var(--text-main);
    margin:48px 0 16px;
    padding-bottom:8px;
    border-bottom:1px solid var(--border);
}
.article-body h3{
    font-size:20px;
    font-weight:600;
    color:var(--text-main);
    margin:40px 0 12px;
}
.article-body h4{
    font-size:18px;
    font-weight:600;
    color:var(--text-main);
    margin:32px 0 12px;
}
.article-body img{
    display:block;
    max-width:100%;
    border-radius:12px;
    border:1px solid var(--border);
    margin:24px auto;
}
.article-body blockquote{
    border-left:4px solid var(--accent);
    background:var(--bg-light);
    padding:16px 24px;
    border-radius:8px;
    font-size:15px;
    color:var(--text-secondary);
    margin:24px 0;
    font-style:normal;
}
.article-body ul,
.article-body ol{
    padding-left:24px;
    margin-bottom:24px;
}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{
    margin-bottom:8px;
    line-height:1.8;
}
.article-body a{
    color:var(--secondary);
    text-decoration:underline;
    text-underline-offset:3px;
    transition:color var(--transition);
}
.article-body a:hover{color:var(--accent-active)}
.article-body table{
    width:100%;
    border-collapse:collapse;
    margin:24px 0;
    font-size:15px;
}
.article-body table th,
.article-body table td{
    border:1px solid var(--border);
    padding:10px 14px;
    text-align:left;
}
.article-body table th{
    background:var(--bg-light);
    font-weight:600;
}
.article-body code{
    background:var(--bg-light);
    padding:2px 6px;
    border-radius:4px;
    font-size:0.9em;
    font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
.article-body pre{
    background:var(--primary);
    color:var(--text-on-dark);
    padding:20px 24px;
    border-radius:var(--radius-md);
    overflow-x:auto;
    margin:24px 0;
    line-height:1.6;
}
.article-body pre code{
    background:transparent;
    color:inherit;
    padding:0;
}
.article-body hr{
    border:none;
    border-top:1px solid var(--border);
    margin:32px 0;
}
.article-body .wp-caption,
.article-body .image-caption{
    font-size:13px;
    color:var(--text-secondary);
    text-align:center;
    margin-top:-16px;
    margin-bottom:24px;
}

/* ========== NOT FOUND ========== */
.article-notfound{
    text-align:center;
    padding:60px 24px;
}
.notfound-icon{
    width:72px;
    height:72px;
    margin:0 auto 20px;
    background:var(--bg-light);
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:26px;
    color:var(--accent);
}
.article-notfound p{
    font-size:18px;
    color:var(--text-secondary);
    margin-bottom:24px;
}
.btn-gold{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:var(--accent);
    color:var(--primary);
    font-weight:600;
    font-size:15px;
    border:none;
    border-radius:var(--radius-md);
    padding:12px 28px;
    cursor:pointer;
    transition:all var(--transition);
    box-shadow:0 2px 6px rgba(201,169,106,0.3);
    text-decoration:none;
}
.btn-gold:hover{
    background:var(--accent-hover);
    transform:translateY(-2px);
    box-shadow:0 6px 16px rgba(201,169,106,0.4);
    color:var(--primary);
}
.btn-gold:active{
    background:var(--accent-active);
    transform:translateY(0);
}

/* ========== RELATED ========== */
.related-section{
    background:#fff;
    padding:72px 0;
}
.section-title-wrap{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:40px;
}
.section-title-bar{
    width:4px;
    height:22px;
    background:var(--accent);
    border-radius:2px;
    flex-shrink:0;
}
.related-section h2{
    font-size:28px;
    font-weight:600;
    color:var(--text-main);
    margin:0;
}
.related-card{
    background:var(--bg-light);
    border-radius:var(--radius-lg);
    overflow:hidden;
    height:100%;
    transition:transform var(--transition),box-shadow var(--transition),background var(--transition);
}
.related-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
    background:#fff;
}
.related-cover{
    width:100%;
    height:160px;
    object-fit:cover;
    display:block;
    border-radius:0;
}
.related-body{
    padding:20px 22px 22px;
}
.related-body h3{
    font-size:17px;
    font-weight:600;
    color:var(--text-main);
    line-height:1.5;
    margin-bottom:12px;
}
.related-body h3 a{
    transition:color var(--transition);
}
.related-body h3 a:hover{color:var(--accent)}
.related-date{
    font-size:13px;
    color:var(--text-secondary);
    font-family:Inter,"DIN Alternate",sans-serif;
}

/* ========== BACK ENTRY ========== */
.back-entry{
    padding:0 0 72px;
    background:#fff;
    text-align:center;
}
.back-entry a{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--text-secondary);
    font-size:15px;
    font-weight:500;
    transition:color var(--transition);
}
.back-entry a:hover{color:var(--accent)}
.back-entry a i{
    transition:transform var(--transition);
}
.back-entry a:hover i{
    transform:translateX(-4px);
}

/* ========== FOOTER ========== */
.footer{
    background:#141C29;
    color:var(--text-dark-secondary);
    padding:64px 0 0;
}
.footer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1.5fr;
    gap:40px;
    padding-bottom:48px;
}
.footer-logo{
    display:flex;
    align-items:center;
    gap:10px;
    color:var(--text-on-dark);
    font-size:20px;
    font-weight:700;
    margin-bottom:16px;
}
.footer-logo .logo-icon{
    width:36px;
    height:36px;
    font-size:15px;
}
.footer-brand p{
    font-size:14px;
    line-height:1.7;
    color:var(--text-dark-secondary);
    max-width:280px;
}
.footer h4{
    font-size:14px;
    font-weight:600;
    color:rgba(255,255,255,0.6);
    margin:0 0 16px;
    letter-spacing:0.04em;
}
.footer-links li{
    margin-bottom:10px;
}
.footer-links a{
    font-size:14px;
    color:var(--text-dark-secondary);
    transition:color var(--transition);
}
.footer-links a:hover{color:var(--accent)}
.footer-contact-item{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:14px;
    line-height:1.6;
    margin-bottom:14px;
    color:var(--text-dark-secondary);
}
.footer-contact-item i{
    color:var(--accent);
    margin-top:3px;
    font-size:13px;
    width:16px;
    text-align:center;
    flex-shrink:0;
}
.footer-bottom{
    border-top:1px solid var(--border-dark);
    padding:20px 0;
    display:flex;
    justify-content:center;
    align-items:center;
    font-size:13px;
    color:var(--text-dark-secondary);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 991px){
    .footer-grid{
        grid-template-columns:1fr 1fr;
        gap:32px;
    }
    .article-wrap{
        padding:40px 36px;
    }
}
@media (max-width: 767px){
    .main-nav{
        height:auto;
    }
    .nav-container{
        flex-wrap:wrap;
        padding-top:12px;
        padding-bottom:12px;
        align-items:center;
    }
    .nav-toggle{
        display:block;
        order:1;
    }
    .nav-logo{
        order:2;
        margin:0 auto;
        position:absolute;
        left:50%;
        transform:translateX(-50%);
    }
    .nav-links{
        display:none;
        order:3;
        width:100%;
        flex-direction:column;
        gap:0;
        margin-top:12px;
        border-top:1px solid rgba(201,169,106,0.2);
        padding-top:8px;
    }
    .nav-open .nav-links{
        display:flex;
    }
    .nav-links a{
        padding:12px 0;
        font-size:15px;
    }
    .nav-links a::after{
        bottom:8px;
    }
    .breadcrumb-item.active{
        max-width:220px;
    }
    .article-main{
        padding:40px 0 56px;
    }
    .article-wrap{
        padding:32px 20px;
        border-radius:var(--radius-md);
    }
    .article-header h1{
        font-size:26px;
    }
    .article-meta{
        gap:14px;
        font-size:13px;
    }
    .article-body{
        font-size:15px;
    }
    .article-body h2{
        font-size:21px;
        margin-top:36px;
    }
    .article-body h3{
        font-size:18px;
        margin-top:28px;
    }
    .related-section{
        padding:56px 0;
    }
    .related-section h2{
        font-size:22px;
    }
    .related-cover{
        height:140px;
    }
    .back-entry{
        padding-bottom:56px;
    }
    .footer{
        padding-top:48px;
    }
    .footer-grid{
        grid-template-columns:1fr;
        gap:28px;
    }
}
@media (max-width: 520px){
    .nav-container{
        padding-left:16px;
        padding-right:16px;
    }
    .nav-logo{
        font-size:18px;
    }
    .logo-icon{
        width:32px;
        height:32px;
        font-size:14px;
    }
    .article-header h1{
        font-size:22px;
    }
    .article-summary{
        font-size:14px;
        padding:14px 16px;
    }
    .footer-bottom{
        flex-direction:column;
        gap:6px;
        text-align:center;
    }
}

/* roulang page: category1 */
:root {
            --primary: #1A2333;
            --accent: #C9A96A;
            --accent-hover: #D9BC82;
            --secondary: #3E6B6B;
            --bg-light: #F6F4EF;
            --bg-white: #FFFFFF;
            --text-main: #2D3239;
            --text-secondary: #6B7280;
            --border-color: #E5E0D8;
            --dark-border: #2E3A4E;
            --footer-bg: #141C29;
            --text-on-dark: #F0EDE6;
            --text-sub-dark: #A0A7B3;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 5px;
            --shadow-card: 0 2px 8px rgba(26,35,51,0.06);
            --shadow-hover: 0 8px 24px rgba(26,35,51,0.10);
            --shadow-btn: 0 2px 6px rgba(201,169,106,0.3);
        }

        * { box-sizing: border-box; }

        body {
            font-family: system-ui, "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-white);
            margin: 0;
            padding: 0;
            text-rendering: optimizeLegibility;
        }

        a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; }
        ul, ol { margin: 0; padding: 0; }

        a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

        /* ===== Header / Navigation ===== */
        .main-nav {
            background: var(--primary);
            position: sticky;
            top: 0;
            z-index: 1030;
            height: 72px;
            border-bottom: 1px solid rgba(201, 169, 106, 0.25);
            box-shadow: 0 1px 12px rgba(26, 35, 51, 0.3);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .nav-links { display: flex; gap: 36px; align-items: center; }
        .nav-links.left { margin-right: auto; padding-left: 20px; }
        .nav-links.right { margin-left: auto; padding-right: 20px; }

        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: rgba(240, 237, 230, 0.82);
            position: relative;
            padding: 6px 2px;
            letter-spacing: 0.01em;
            transition: color 0.2s ease;
        }

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

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 0;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width 0.25s ease;
        }

        .nav-links a:hover::after,
        .nav-links a.active::after { width: 20px; }

        .nav-links a.active { color: var(--accent); }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-on-dark);
            font-size: 20px;
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background: var(--primary) url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            position: relative;
            padding: 100px 0 80px;
            text-align: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 35, 51, 0.76);
        }

        .banner-content { position: relative; z-index: 1; }

        .page-banner h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            line-height: 1.3;
        }

        .banner-divider {
            width: 60px;
            height: 2px;
            background: var(--accent);
            margin: 0 auto 20px;
            border-radius: 2px;
        }

        .page-banner p {
            font-size: 17px;
            color: var(--text-sub-dark);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .breadcrumb-wrap {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .breadcrumb-wrap .breadcrumb { margin: 0; }
        .breadcrumb-wrap .breadcrumb a { color: var(--text-secondary); }
        .breadcrumb-wrap .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb-wrap .breadcrumb-item.active { color: var(--accent); }
        .breadcrumb-wrap .breadcrumb-item + .breadcrumb-item::before { color: #B8B4AE; }

        /* ===== Section Common ===== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-light); }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-header h2 { font-size: 30px; font-weight: 600; color: var(--text-main); margin-bottom: 12px; letter-spacing: 0.02em; }
        .section-header p { font-size: 15px; color: var(--text-secondary); max-width: 600px; margin: 0 auto; line-height: 1.7; }

        .heading-badge {
            display: inline-block;
            background: rgba(201, 169, 106, 0.18);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        /* ===== Service Intro ===== */
        .service-intro {
            display: flex;
            gap: 56px;
            align-items: center;
        }

        .service-intro .intro-text { flex: 1; }
        .service-intro .intro-img { flex: 1; position: relative; }

        .service-intro .intro-img img {
            border-radius: 12px;
            box-shadow: var(--shadow-card);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }

        .service-intro .intro-img::after {
            content: '';
            position: absolute;
            inset: 18px -18px -18px 18px;
            border: 2px solid var(--accent);
            border-radius: 12px;
            z-index: -1;
            opacity: 0.35;
        }

        .intro-text h3 { font-size: 20px; font-weight: 600; margin-bottom: 14px; color: var(--primary); }
        .intro-text p { margin-bottom: 16px; color: var(--text-secondary); line-height: 1.8; font-size: 15px; }
        .intro-text p strong { color: var(--text-main); font-weight: 600; }

        .intro-list { list-style: none; margin-top: 8px; }
        .intro-list li {
            padding: 7px 0 7px 26px;
            position: relative;
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.6;
        }
        .intro-list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 7px;
            color: var(--accent);
            font-size: 14px;
        }

        /* ===== Feature Cards ===== */
        .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
            border-top: 2px solid transparent;
            height: 100%;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-top-color: var(--accent);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background: rgba(201, 169, 106, 0.18);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            margin-bottom: 16px;
        }

        .feature-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; color: var(--primary); }
        .feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin: 0; }

        /* ===== Process Steps ===== */
        .process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

        .process-step {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            text-align: center;
            position: relative;
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }

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

        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: var(--shadow-btn);
        }

        .process-step h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; color: var(--primary); }
        .process-step p { font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.6; }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -20px;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 14px;
            z-index: 2;
            opacity: 0;
            transition: opacity 0.2s ease;
        }

        .process-step:hover .step-arrow { opacity: 1; }

        /* ===== Scene Section ===== */
        .section-scene {
            background: var(--primary) url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
            padding: 80px 0;
        }

        .section-scene::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 35, 51, 0.84);
        }

        .section-scene .container { position: relative; z-index: 1; }
        .section-scene .section-header h2 { color: var(--text-on-dark); }
        .section-scene .section-header p { color: var(--text-sub-dark); }

        .scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

        .scene-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 28px;
            text-align: center;
            transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
        }

        .scene-item:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(201, 169, 106, 0.4);
            transform: translateY(-4px);
        }

        .scene-item i {
            font-size: 26px;
            color: var(--accent);
            margin-bottom: 14px;
            display: block;
        }

        .scene-item h3 { font-size: 17px; font-weight: 600; color: var(--text-on-dark); margin-bottom: 10px; }
        .scene-item p { font-size: 14px; color: var(--text-sub-dark); margin: 0; line-height: 1.7; }

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

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 0.2s ease;
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            background: transparent;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            text-align: left;
            line-height: 1.5;
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            transition: transform 0.25s ease;
            font-size: 18px;
        }

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

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

        .faq-answer.open {
            padding: 0 24px 20px;
            max-height: 320px;
            background: #FAF8F4;
        }

        .faq-answer p { font-size: 15px; color: var(--text-secondary); line-height: 1.7; margin: 0; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-light);
            padding: 64px 0;
            text-align: center;
            border-top: 1px solid var(--border-color);
        }

        .cta-section h2 { font-size: 28px; font-weight: 600; color: var(--text-main); margin-bottom: 12px; }
        .cta-section p { font-size: 15px; color: var(--text-secondary); margin-bottom: 28px; }

        .btn-gold {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            padding: 12px 32px;
            border-radius: var(--radius-md);
            border: none;
            font-size: 16px;
            cursor: pointer;
            box-shadow: var(--shadow-btn);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            text-align: center;
        }

        .btn-gold:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(201, 169, 106, 0.4);
        }

        .btn-gold:active {
            background: #B39258;
            transform: none;
            box-shadow: none;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--footer-bg);
            padding: 64px 0 0;
            color: var(--text-sub-dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 16px;
        }

        .footer-brand p { font-size: 14px; line-height: 1.7; color: var(--text-sub-dark); margin-bottom: 0; max-width: 280px; }

        .footer h4 {
            font-size: 14px;
            font-weight: 600;
            color: rgba(240, 237, 230, 0.65);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 10px; }

        .footer-links a { font-size: 14px; color: var(--text-sub-dark); transition: color 0.2s ease; }
        .footer-links a:hover { color: var(--accent); }

        .footer-contact-item { display: flex; align-items: center; gap: 10px; font-size: 14px; margin-bottom: 12px; color: var(--text-sub-dark); }
        .footer-contact-item i { color: var(--accent); width: 16px; text-align: center; flex-shrink: 0; }

        .footer-bottom {
            border-top: 1px solid var(--dark-border);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(160, 167, 179, 0.7);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .nav-links { gap: 20px; }
            .nav-links.left { padding-left: 8px; }
            .nav-links.right { padding-right: 8px; }
            .nav-links a { font-size: 14px; }

            .feature-grid { grid-template-columns: repeat(2, 1fr); }
            .process-steps { grid-template-columns: repeat(2, 1fr); }
            .service-intro { flex-direction: column; gap: 40px; }
            .scene-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .page-banner { padding: 72px 0 56px; }
            .page-banner h1 { font-size: 32px; }
        }

        @media (max-width: 767px) {
            .main-nav { height: auto; min-height: 64px; }

            .nav-toggle {
                display: block;
                position: absolute;
                left: 16px;
                top: 50%;
                transform: translateY(-50%);
                z-index: 10;
            }

            .nav-container { flex-wrap: wrap; }

            .nav-logo {
                position: relative;
                left: auto;
                transform: none;
                font-size: 18px;
                margin: 0 auto;
                padding: 18px 0;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                padding: 0 !important;
                background: var(--primary);
                border-top: 1px solid rgba(201, 169, 106, 0.2);
            }

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

            .nav-links a {
                display: block;
                padding: 14px 20px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                font-size: 15px;
                text-align: center;
            }

            .nav-links a::after { display: none; }

            .page-banner { padding: 52px 0 40px; }
            .page-banner h1 { font-size: 28px; }
            .page-banner p { font-size: 15px; }

            .section { padding: 48px 0; }
            .section-header { margin-bottom: 32px; }
            .section-header h2 { font-size: 24px; }

            .feature-grid { grid-template-columns: 1fr; }
            .process-steps { grid-template-columns: 1fr; }
            .scene-grid { grid-template-columns: 1fr; }

            .service-intro .intro-img::after { display: none; }

            .faq-question { padding: 16px 18px; font-size: 15px; }
            .faq-answer.open { padding: 0 18px 16px; }

            .cta-section { padding: 48px 0; }
            .cta-section h2 { font-size: 22px; }

            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer { padding-top: 48px; }

            .btn-gold { display: block; width: 100%; max-width: 280px; margin: 0 auto; }
        }

/* roulang page: category3 */
:root {
            --primary: #1A2333;
            --accent: #C9A96A;
            --accent-light: #D9BC82;
            --accent-dark: #B39258;
            --secondary: #3E6B6B;
            --bg-light: #F6F4EF;
            --bg-white: #FFFFFF;
            --text-main: #2D3239;
            --text-muted: #6B7280;
            --text-on-dark: #F0EDE6;
            --text-muted-dark: #A0A7B3;
            --border-light: #E5E0D8;
            --border-dark: #2E3A4E;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 5px;
            --shadow-sm: 0 2px 8px rgba(26, 35, 51, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 35, 51, 0.10);
            --shadow-btn: 0 2px 6px rgba(201, 169, 106, 0.3);
            --transition: 0.2s ease;
            --font-main: system-ui, "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
            --font-num: Inter, "DIN Alternate", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-white);
        }

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

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

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

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

        /* ===== 导航 ===== */
        .main-nav {
            background: var(--primary);
            position: sticky;
            top: 0;
            z-index: 1030;
            height: 72px;
            border-bottom: 1px solid rgba(201, 169, 106, 0.25);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 72px;
            gap: 24px;
            position: relative;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
        }

        .nav-link {
            color: var(--text-muted-dark);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 20px 0;
            transition: color var(--transition);
        }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 12px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width var(--transition);
        }

        .nav-link:hover {
            color: var(--accent-light);
        }

        .nav-link:hover::after {
            width: 20px;
        }

        .nav-link.active {
            color: var(--accent);
        }

        .nav-link.active::after {
            width: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 20px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 0.02em;
            transition: color var(--transition);
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 17px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-on-dark);
            font-size: 20px;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
        }

        .nav-toggle:hover {
            color: var(--accent);
        }

        .nav-toggle:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 页面 Hero ===== */
        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 100px 0 80px;
            text-align: center;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(26, 35, 51, 0.78);
        }

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

        .page-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 0.02em;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .hero-rule {
            width: 60px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            margin: 20px auto;
        }

        .page-hero p {
            font-size: 17px;
            color: var(--text-muted-dark);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(201, 169, 106, 0.4);
            color: var(--accent-light);
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 24px;
        }

        .hero-badge i {
            font-size: 14px;
        }

        /* ===== 核心解答卡片 ===== */
        .answer-cards {
            background: var(--bg-light);
            padding: 80px 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-head .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(201, 169, 106, 0.12);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 620px;
            margin: 0 auto;
        }

        .answer-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .answer-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            border: 1px solid transparent;
        }

        .answer-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(201, 169, 106, 0.3);
        }

        .answer-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(201, 169, 106, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-dark);
            font-size: 20px;
            margin-bottom: 18px;
        }

        .answer-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .answer-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .answer-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }

        .answer-link i {
            font-size: 13px;
            transition: transform var(--transition);
        }

        .answer-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 图文信息区 ===== */
        .info-section {
            background: var(--bg-white);
            padding: 80px 0;
        }

        .info-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .info-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .info-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }

        .info-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(26, 35, 51, 0.3) 100%);
        }

        .info-content .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(62, 107, 107, 0.1);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .info-content h2 {
            font-size: 28px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .info-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .info-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }

        .info-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.6;
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-list li i {
            color: var(--accent-dark);
            font-size: 15px;
            margin-top: 4px;
            min-width: 16px;
        }

        /* ===== FAQ 区 ===== */
        .faq-section {
            background: var(--bg-light);
            padding: 80px 0;
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: #FAF8F4;
        }

        .faq-question:focus {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            min-width: 28px;
            border-radius: 50%;
            background: rgba(201, 169, 106, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--accent-dark);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 0 solid var(--border-light);
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
            border-top-width: 1px;
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            width: 260px;
            height: 260px;
            border: 1px solid rgba(201, 169, 106, 0.2);
            border-radius: 50%;
            top: -80px;
            right: -60px;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            width: 180px;
            height: 180px;
            border: 1px solid rgba(201, 169, 106, 0.12);
            border-radius: 50%;
            bottom: -60px;
            left: -40px;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 600;
            color: var(--text-on-dark);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-muted-dark);
            margin-bottom: 28px;
        }

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

        .btn-main {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 30px;
            border-radius: var(--radius-md);
            border: none;
            box-shadow: var(--shadow-btn);
            cursor: pointer;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        .btn-main:hover {
            background: var(--accent-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(201, 169, 106, 0.4);
        }

        .btn-main:active {
            background: var(--accent-dark);
            transform: none;
        }

        .btn-main:focus {
            outline: 2px solid var(--text-on-dark);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-on-dark);
            border: 1px solid rgba(255, 255, 255, 0.6);
            font-weight: 500;
            font-size: 15px;
            padding: 11px 28px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: background var(--transition), border-color var(--transition);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-on-dark);
            border-color: var(--text-on-dark);
        }

        .btn-outline:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #141C29;
            color: var(--text-muted-dark);
            padding: 60px 0 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 15px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted-dark);
            max-width: 280px;
        }

        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }

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

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

        .footer-links a {
            color: var(--text-muted-dark);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            color: var(--text-muted-dark);
            font-size: 14px;
            line-height: 1.6;
        }

        .footer-contact-item i {
            color: var(--accent);
            font-size: 14px;
            margin-top: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted-dark);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .nav-container {
                justify-content: space-between;
            }

            .nav-links {
                gap: 20px;
            }

            .nav-logo {
                padding: 0 10px;
            }

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

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

            .info-grid {
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                height: 60px;
            }

            .nav-container {
                height: 60px;
            }

            .nav-toggle {
                display: block;
                order: 1;
            }

            .nav-logo {
                order: 2;
                font-size: 18px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(201, 169, 106, 0.2);
                box-shadow: var(--shadow-md);
            }

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

            .nav-links.left,
            .nav-links.right {
                gap: 4px;
            }

            .nav-link {
                width: 100%;
                padding: 12px 0;
                font-size: 16px;
            }

            .nav-link::after {
                display: none;
            }

            .page-hero {
                padding: 56px 0 48px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .answer-cards,
            .info-section,
            .faq-section,
            .cta-section {
                padding: 48px 0;
            }

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

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

            .info-image img {
                height: 260px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

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

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

            .section-head p {
                font-size: 14px;
            }

            .answer-card {
                padding: 24px 20px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer {
                font-size: 14px;
                padding: 0 18px;
            }

            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }

            .cta-inner h2 {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1A2333;
            --primary-dark: #141C29;
            --accent: #C9A96A;
            --accent-hover: #D9BC82;
            --accent-dark: #B39258;
            --secondary: #3E6B6B;
            --bg-light: #F6F4EF;
            --bg-white: #FFFFFF;
            --text-main: #2D3239;
            --text-sub: #6B7280;
            --text-on-dark: #F0EDE6;
            --text-sub-dark: #A0A7B3;
            --border-light: #E5E0D8;
            --border-dark: #2E3A4E;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 5px;
            --shadow-card: 0 2px 8px rgba(26, 35, 51, 0.06);
            --shadow-hover: 0 8px 24px rgba(26, 35, 51, 0.10);
            --font-sans: system-ui, "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
            --font-num: Inter, "DIN Alternate", sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg-white);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== 顶部导航 ===== */
        .main-nav {
            background: var(--primary);
            position: sticky;
            top: 0;
            z-index: 1030;
            height: 72px;
            border-bottom: 1px solid rgba(201, 169, 106, 0.3);
        }

        .nav-container {
            position: relative;
            display: flex;
            align-items: center;
            height: 72px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-on-dark);
            font-size: 20px;
            padding: 8px 10px;
            cursor: pointer;
            line-height: 1;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
        }

        .nav-links.left {
            flex: 1;
            justify-content: flex-start;
        }

        .nav-links.right {
            flex: 1;
            justify-content: flex-end;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 24px;
            color: var(--text-on-dark);
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.03em;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
        }

        .nav-link {
            color: rgba(240, 237, 230, 0.75);
            font-size: 16px;
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            transition: color 0.2s ease;
            display: inline-block;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transform: translateX(-50%);
            border-radius: 2px;
            transition: width 0.2s ease;
        }

        .nav-link:hover {
            color: var(--accent);
        }

        .nav-link:hover::after {
            width: 20px;
        }

        .nav-link.active {
            color: var(--accent);
        }

        .nav-link.active::after {
            width: 20px;
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            background-image: linear-gradient(135deg, rgba(26, 35, 51, 0.88), rgba(20, 28, 41, 0.94)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 96px 0 72px;
            text-align: center;
            color: var(--text-on-dark);
            border-bottom: 1px solid rgba(201, 169, 106, 0.2);
        }

        .banner-tag {
            display: inline-block;
            background: rgba(201, 169, 106, 0.18);
            border: 1px solid rgba(201, 169, 106, 0.5);
            color: var(--accent);
            padding: 4px 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            letter-spacing: 0.08em;
        }

        .page-banner h1 {
            font-size: 40px;
            font-weight: 700;
            margin: 18px 0 0;
            letter-spacing: 0.02em;
            color: var(--text-on-dark);
        }

        .banner-line {
            width: 60px;
            height: 2px;
            background: var(--accent);
            margin: 20px auto;
        }

        .banner-sub {
            max-width: 600px;
            margin: 0 auto;
            font-size: 18px;
            color: var(--text-sub-dark);
            line-height: 1.7;
        }

        .banner-breadcrumb {
            margin-top: 24px;
            font-size: 14px;
            color: var(--text-sub-dark);
        }

        .banner-breadcrumb a {
            color: var(--text-sub-dark);
            transition: color 0.2s ease;
        }

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

        .banner-breadcrumb i {
            font-size: 10px;
            margin: 0 8px;
        }

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

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

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

        .section-bar {
            display: block;
            width: 4px;
            height: 20px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 auto 16px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .section-head p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 场景卡片 ===== */
        .scenario-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            height: 100%;
            box-shadow: var(--shadow-card);
            border: 1px solid transparent;
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
        }

        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 169, 106, 0.4);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            background: rgba(201, 169, 106, 0.18);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-dark);
            font-size: 20px;
            margin-bottom: 16px;
        }

        .scenario-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .scenario-card p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .card-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s ease, gap 0.2s ease;
        }

        .card-link i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }

        .card-link:hover {
            color: var(--accent-dark);
        }

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

        /* ===== 流程步骤 ===== */
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            height: 100%;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, transform 0.2s ease;
        }

        .step-card:hover {
            border-color: var(--accent);
            transform: translateY(-4px);
        }

        .step-num {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: rgba(201, 169, 106, 0.6);
            line-height: 1;
            margin-bottom: 16px;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .step-card p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ===== 图文说明 ===== */
        .split-content h2 {
            font-size: 28px;
            font-weight: 600;
            margin: 12px 0 16px;
            color: var(--text-main);
            letter-spacing: 0.02em;
        }

        .split-content p {
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .split-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            width: 100%;
            object-fit: cover;
        }

        .check-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 24px;
        }

        .check-list li {
            padding: 6px 0;
            color: var(--text-main);
            font-size: 15px;
        }

        .check-list i {
            color: var(--secondary);
            margin-right: 10px;
        }

        /* ===== 数据条 ===== */
        .stats-band {
            background: var(--primary);
            padding: 72px 0;
        }

        .stat-item {
            padding: 28px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            transition: background 0.2s ease;
            height: 100%;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .stat-num {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-sub-dark);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow 0.2s ease, background 0.2s ease;
        }

        .faq-item.active {
            background: #FAF8F4;
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 169, 106, 0.4);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-family: var(--font-sans);
            cursor: pointer;
        }

        .faq-question i {
            color: var(--accent);
            font-size: 16px;
            transition: transform 0.2s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease;
        }

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

        .faq-answer p {
            padding: 0 24px 18px;
            margin: 0;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background-image: linear-gradient(135deg, rgba(26, 35, 51, 0.92), rgba(20, 28, 41, 0.96)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 72px 0;
            color: var(--text-on-dark);
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 600;
            color: var(--text-on-dark);
            letter-spacing: 0.02em;
        }

        .cta-section p {
            color: var(--text-sub-dark);
            max-width: 620px;
            margin: 12px auto 28px;
            line-height: 1.7;
        }

        /* ===== 按钮 ===== */
        .btn-gold {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 16px;
            box-shadow: 0 2px 6px rgba(201, 169, 106, 0.3);
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
        }

        .btn-gold:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201, 169, 106, 0.4);
        }

        .btn-gold:active {
            background: var(--accent-dark);
            transform: translateY(0);
        }

        .btn-blue-line {
            display: inline-block;
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 10px 24px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 15px;
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
        }

        .btn-blue-line:hover {
            background: rgba(26, 35, 51, 0.08);
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline-light-outline {
            display: inline-block;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #ffffff;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 16px;
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
        }

        .btn-outline-light-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary-dark);
            color: #A7AEB8;
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-on-dark);
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.03em;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-top: 14px;
            color: #76808F;
        }

        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: rgba(240, 237, 230, 0.6);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-links a {
            color: #A7AEB8;
            font-size: 14px;
            transition: color 0.2s ease;
        }

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

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            margin-bottom: 12px;
            color: #A7AEB8;
        }

        .footer-contact-item i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            text-align: center;
            padding: 18px 0;
            font-size: 13px;
            color: #76808F;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .main-nav {
                height: auto;
                min-height: 72px;
            }

            .nav-container {
                flex-wrap: wrap;
                justify-content: center;
                height: auto;
                min-height: 72px;
            }

            .nav-toggle {
                display: inline-flex;
                position: absolute;
                left: 16px;
                top: 50%;
                transform: translateY(-50%);
                z-index: 20;
                align-items: center;
                justify-content: center;
            }

            .nav-logo {
                order: 0;
                margin: 0 auto;
                padding: 0 10px;
            }

            .nav-links {
                display: none;
                width: 100%;
                order: 2;
                flex-direction: column;
                gap: 0;
                padding: 8px 24px 20px;
                background: var(--primary);
            }

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

            .nav-open .nav-links.left,
            .nav-open .nav-links.right {
                flex: none;
                width: 100%;
                align-items: stretch;
            }

            .nav-link {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                width: 100%;
            }

            .nav-link::after {
                display: none;
            }

            .nav-link.active {
                color: var(--accent);
            }

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

            .page-banner {
                padding: 72px 0 56px;
            }

            .page-banner h1 {
                font-size: 34px;
            }

            .section {
                padding: 64px 0;
            }

            .section-head h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 767.98px) {
            .page-banner {
                padding: 56px 0 44px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

            .banner-sub {
                font-size: 16px;
            }

            .section {
                padding: 48px 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

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

            .split-content h2 {
                font-size: 24px;
            }

            .cta-section {
                padding: 56px 0;
            }

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

            .btn-gold,
            .btn-outline-light-outline {
                width: 100%;
                max-width: 320px;
                margin: 6px auto;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 32px;
            }
        }

        @media (max-width: 575.98px) {
            .step-card,
            .scenario-card {
                padding: 22px 20px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer p {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }