/* roulang page: index */
:root {
            --primary: #0E6E62;
            --primary-dark: #085249;
            --primary-light: #E7F1EF;
            --secondary: #F0803C;
            --navy: #123936;
            --bg: #F5F6F4;
            --surface: #FFFFFF;
            --text: #1F2D2B;
            --text-secondary: #556664;
            --border: #DCE5E3;
            --white: #FFFFFF;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(20, 60, 50, 0.06);
            --shadow-hover: 0 8px 30px rgba(20, 60, 50, 0.12);
            --transition: all 0.3s ease;
            --container-max: 1280px;
        }

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

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            padding-top: 72px;
        }

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

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

        ul {
            list-style: none;
        }

        .grid-container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 639px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: var(--white);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            box-shadow: 0 6px 20px rgba(14, 110, 98, 0.25);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 26px;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.7);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            border-color: var(--white);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 26px;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }
        .btn-outline-dark:hover {
            background: rgba(14, 110, 98, 0.08);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: var(--radius-sm);
            background: var(--white);
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }
        .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
            transform: translateY(-2px);
        }
        .btn-white:active {
            transform: scale(0.98);
        }

        /* 标签 */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-secondary {
            background: rgba(240, 128, 60, 0.15);
            color: #c75f1e;
        }

        /* 板块 */
        .section {
            padding: 96px 0;
        }
        .section-alt {
            background: var(--surface);
        }
        .section-header {
            margin-bottom: 56px;
        }
        .section-header .section-kicker {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.35;
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
        }
        .section-header .header-line {
            width: 48px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin-top: 20px;
        }

        @media (max-width: 1023px) {
            .section {
                padding: 72px 0;
            }
            .section-header {
                margin-bottom: 40px;
            }
            .section-header h2 {
                font-size: 24px;
            }
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--navy);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(18, 57, 54, 0.97);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            height: 72px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--white);
            font-size: 20px;
            font-weight: 700;
            white-space: nowrap;
        }
        .logo i {
            font-size: 24px;
            color: var(--secondary);
        }
        .logo:hover {
            color: var(--white);
            opacity: 0.9;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-card {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 500;
            line-height: 1.3;
            transition: var(--transition);
        }
        .nav-card:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--white);
            transform: translateY(-2px);
        }
        .nav-card.active {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 16px rgba(14, 110, 98, 0.35);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: var(--secondary);
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            margin-left: 8px;
            transition: var(--transition);
        }
        .nav-cta:hover {
            background: #d96b2a;
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(240, 128, 60, 0.3);
        }
        .menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--white);
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
        }
        .menu-toggle:focus {
            outline: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: 4px;
        }

        @media (max-width: 1023px) {
            .menu-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--navy);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 24px;
                gap: 10px;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
                border-top: 1px solid rgba(255, 255, 255, 0.06);
            }
            .nav-menu.is-open {
                display: flex;
            }
            .nav-card,
            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-left: 0;
                padding: 14px 18px;
            }
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(18, 57, 54, 0.78);
        }
        .hero-wave {
            position: absolute;
            bottom: 0;
            right: 0;
            width: 480px;
            height: 240px;
            opacity: 0.15;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: 80px 0;
        }
        .hero-tagline {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: rgba(255, 255, 255, 0.9);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-content h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }
        .hero-content p {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 36px;
            max-width: 580px;
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .hero-stats {
            margin-top: 56px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 28px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat .num {
            font-size: 26px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
        }

        @media (max-width: 1023px) {
            .hero {
                min-height: 60vh;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .hero-content p {
                font-size: 15px;
            }
        }
        @media (max-width: 639px) {
            .hero-content {
                padding: 56px 0;
            }
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-stats {
                gap: 20px;
            }
        }

        /* 通用卡片 */
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px;
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 110, 98, 0.35);
        }
        .icon-block {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 22px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        /* 功能分组 */
        .feature-grid-card {
            height: 320px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .feature-grid-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
        }
        .feature-grid-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
            flex-grow: 0;
        }
        .feature-card-lg h3 {
            font-size: 24px;
        }
        .feature-card-lg p {
            font-size: 15px;
            max-width: 420px;
        }
        .feature-card-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
        }
        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .feature-link i {
            transition: var(--transition);
        }
        .feature-link:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 1023px) {
            .feature-grid-card {
                height: auto;
                min-height: 260px;
                margin-bottom: 20px;
            }
        }

        /* 使用场景 */
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 60px;
            margin-bottom: 64px;
        }
        .scenario-row:last-child {
            margin-bottom: 0;
        }
        .scenario-row.reverse {
            flex-direction: row-reverse;
        }
        .scenario-image {
            flex: 0 0 52%;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .scenario-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: var(--transition);
        }
        .scenario-image:hover img {
            transform: scale(1.02);
        }
        .scenario-content {
            flex: 1;
        }
        .scenario-content .scenario-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-dark);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .scenario-content h3 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .scenario-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .scenario-points {
            margin-top: 16px;
        }
        .scenario-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            padding: 6px 0;
        }
        .scenario-points li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 6px;
        }

        @media (max-width: 1023px) {
            .scenario-row,
            .scenario-row.reverse {
                flex-direction: column;
                gap: 32px;
                margin-bottom: 48px;
            }
            .scenario-image {
                flex: 0 0 auto;
                width: 100%;
            }
            .scenario-image img {
                height: 240px;
            }
            .scenario-content h3 {
                font-size: 20px;
            }
        }

        /* 成功案例 */
        .case-wide {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 280px;
            transition: var(--transition);
        }
        .case-wide:hover {
            border-color: rgba(14, 110, 98, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .case-wide .case-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            margin: 12px 0;
            line-height: 1.4;
        }
        .case-wide .case-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .case-stats-card {
            background: var(--navy);
            border-radius: var(--radius);
            padding: 32px;
            min-height: 280px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 28px;
            color: var(--white);
            box-shadow: var(--shadow);
        }
        .case-stat-item .num {
            font-size: 32px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
        }
        .case-stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }
        .case-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            margin-bottom: 20px;
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 110, 98, 0.35);
        }
        .case-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 12px 0 8px;
        }
        .case-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }
        .case-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            margin-top: 14px;
        }
        .case-card-link i {
            transition: var(--transition);
        }
        .case-card-link:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 1023px) {
            .case-wide,
            .case-stats-card {
                min-height: 220px;
                margin-bottom: 20px;
            }
        }

        /* 价格区 */
        .pricing-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            position: relative;
            margin-bottom: 20px;
        }
        .pricing-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .pricing-card.recommended {
            border: 1px solid var(--secondary);
            background: var(--primary-light);
        }
        .pricing-recommend-tag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--secondary);
            color: var(--white);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 18px;
            border-radius: 999px;
            letter-spacing: 0.05em;
            white-space: nowrap;
        }
        .pricing-plan-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
        }
        .pricing-price {
            font-size: 42px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .pricing-price .currency {
            font-size: 20px;
            font-weight: 600;
            vertical-align: top;
            margin-right: 4px;
            color: var(--text-secondary);
        }
        .pricing-desc {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 22px;
            padding-bottom: 18px;
            border-bottom: 1px solid var(--border);
        }
        .pricing-features {
            margin-bottom: 28px;
            flex-grow: 1;
        }
        .pricing-features li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--text);
            padding: 5px 0;
            line-height: 1.6;
        }
        .pricing-features li i {
            color: var(--primary);
            font-size: 13px;
            margin-top: 6px;
        }
        .pricing-card.recommended .pricing-features li i {
            color: var(--secondary);
        }

        @media (max-width: 1023px) {
            .pricing-price {
                font-size: 34px;
            }
        }

        /* FAQ */
        .faq-item {
            margin-bottom: 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--surface);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-item.open {
            border-color: var(--primary);
            background: var(--primary-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 18px;
            background: transparent;
            border: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-dark);
        }
        .faq-question i {
            font-size: 14px;
            transition: var(--transition);
            color: var(--primary);
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 18px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* 资讯列表 */
        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
            margin-bottom: 20px;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 110, 98, 0.35);
        }
        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }
        .news-meta .news-date {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .news-card h3 a {
            color: var(--text);
        }
        .news-card h3 a:hover {
            color: var(--primary);
        }
        .news-card .news-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex-grow: 1;
        }
        .news-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .news-card .read-more i {
            transition: var(--transition);
        }
        .news-card .read-more:hover i {
            transform: translateX(4px);
        }
        .news-footer {
            margin-top: 32px;
            text-align: center;
        }
        .empty-state {
            min-height: 180px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            text-align: center;
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            background: var(--surface);
            color: var(--text-secondary);
            font-size: 14px;
        }
        .empty-state i {
            font-size: 42px;
            opacity: 0.3;
            color: var(--text-secondary);
        }

        /* CTA */
        .cta-section {
            background: var(--navy);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 72px 0;
        }
        .cta-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .cta-content p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 639px) {
            .cta-content h2 {
                font-size: 22px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.6);
            padding: 64px 0 0;
        }
        .footer-brand {
            margin-bottom: 24px;
        }
        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--white);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--white);
        }

        @media (max-width: 1023px) {
            .footer-col {
                margin-bottom: 28px;
            }
        }

        /* 其它工具类 */
        .text-center {
            text-align: center;
        }
        .mt-1 { margin-top: 8px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }
        .mt-4 { margin-top: 32px; }
        .mb-1 { margin-bottom: 8px; }
        .mb-2 { margin-bottom: 16px; }
        .mb-3 { margin-bottom: 24px; }
        .mb-4 { margin-bottom: 32px; }

        /* 焦点可见性 */
        a:focus,
        button:focus {
            outline: 2px solid rgba(14, 110, 98, 0.4);
            outline-offset: 2px;
        }

        /* 移动端微调 */
        @media (max-width: 520px) {
            body {
                padding-top: 64px;
            }
            .nav-container {
                height: 64px;
            }
            .nav-menu {
                top: 64px;
            }
            .hero-content h1 {
                font-size: 24px;
            }
            .hero-btns {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-btns .btn-primary,
            .hero-btns .btn-outline {
                justify-content: center;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .cta-content {
                padding: 48px 0;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0E6E62;
            --primary-dark: #085249;
            --primary-light: #E7F1EF;
            --secondary: #F0803C;
            --navy: #123936;
            --bg: #F5F6F4;
            --surface: #FFFFFF;
            --text: #1F2D2B;
            --text-secondary: #556664;
            --border: #DCE5E3;
            --white: #FFFFFF;
            --radius: 14px;
            --shadow: 0 4px 20px rgba(20, 60, 50, 0.06);
            --shadow-hover: 0 8px 30px rgba(20, 60, 50, 0.12);
            --transition: 0.3s ease;
        }

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

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

        a { text-decoration: none; color: var(--primary); transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button { font-family: inherit; cursor: pointer; }
        ul { list-style: none; }

        .grid-container { max-width: 1280px; }

        /* ====== Header / Nav ====== */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            background: rgba(18, 57, 54, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .site-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--white);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .site-logo i { color: var(--secondary); font-size: 20px; }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: 1;
            justify-content: center;
        }

        .nav-card {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.03);
            border-radius: 10px;
            padding: 10px 18px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
        }
        .nav-card i { font-size: 13px; opacity: 0.75; }
        .nav-card:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--white);
            transform: translateY(-2px);
        }
        .nav-card.active {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(14, 110, 98, 0.35);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: var(--white);
            border-radius: 10px;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #e06a2a;
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(240, 128, 60, 0.4);
        }

        .menu-toggle {
            display: none;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            width: 42px;
            height: 42px;
            position: relative;
            padding: 0;
        }
        .menu-toggle span { display: block; width: 18px; height: 2px; background: var(--white); margin: 3px auto; border-radius: 2px; }

        /* ====== Page Hero ====== */
        .page-hero {
            position: relative;
            margin-top: 72px;
            padding: 100px 0 80px;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: var(--white);
            text-align: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 57, 54, 0.82);
        }
        .page-hero .grid-container { position: relative; z-index: 2; }
        .page-hero h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.9);
        }
        .hero-badge i { color: var(--secondary); }

        /* ====== Sections ====== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg); }
        .section-white { background: var(--surface); }

        .section-title-wrap { text-align: center; margin-bottom: 48px; }
        .section-kicker {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 999px;
            padding: 4px 16px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section-title-wrap h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .section-title-wrap p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ====== Cards ====== */
        .service-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            height: 100%;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .service-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 20px;
            margin-bottom: 16px;
        }
        .service-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.4;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            flex: 1;
            line-height: 1.75;
        }
        .card-tags { margin-top: 16px; display: flex; gap: 8px; flex-wrap: wrap; }
        .tag {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
        }
        .card-link {
            margin-top: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition), gap var(--transition);
        }
        .card-link i { transition: transform var(--transition); }
        .card-link:hover { color: var(--primary-dark); }
        .card-link:hover i { transform: translateX(4px); }

        /* ====== Feature / Pipeline ====== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 16px;
        }
        .feature-item {
            text-align: center;
            padding: 28px 20px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .feature-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .feature-step {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 12px;
        }
        .feature-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .feature-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ====== Data Highlight ====== */
        .data-highlight {
            background: var(--navy);
            padding: 80px 0;
            color: var(--white);
            position: relative;
        }
        .data-highlight h2 {
            color: var(--white);
            text-align: center;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .data-highlight .section-desc {
            text-align: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: 48px;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .data-card {
            text-align: center;
            padding: 36px 28px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            transition: all var(--transition);
        }
        .data-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.25);
        }
        .data-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .data-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ====== Scenario ====== */
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 56px;
            margin-bottom: 64px;
        }
        .scenario-row:last-child { margin-bottom: 0; }
        .scenario-row .image-wrap {
            flex: 0 0 46%;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            aspect-ratio: 16 / 10;
            background: var(--primary-light);
        }
        .scenario-row .image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .scenario-row .image-wrap:hover img { transform: scale(1.03); }
        .scenario-content { flex: 1; }
        .scenario-content h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .scenario-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .scenario-tag {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ====== FAQ ====== */
        .faq-wrap { max-width: 860px; margin: 0 auto; }
        .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 0 18px;
            margin-bottom: 12px;
            transition: border-color var(--transition), background var(--transition);
        }
        .accordion-item:hover { border-color: var(--primary); }
        .accordion-item.open { background: var(--primary-light); border-color: var(--primary); }
        .accordion-title {
            width: 100%;
            background: none;
            border: none;
            padding: 16px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            gap: 16px;
        }
        .accordion-title i {
            color: var(--primary);
            font-size: 13px;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .accordion-item.open .accordion-title i { transform: rotate(180deg); }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .accordion-content-inner {
            padding-bottom: 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ====== CTA ====== */
        .cta-section {
            background: var(--primary);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            right: -60px;
            bottom: -80px;
            width: 300px;
            height: 300px;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            border-radius: 50%;
        }
        .cta-section h2 {
            color: var(--white);
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            margin-bottom: 24px;
            position: relative;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--white);
            color: var(--primary);
            border-radius: 10px;
            padding: 12px 32px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            position: relative;
        }
        .cta-btn:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
            color: var(--primary-dark);
        }

        /* ====== Footer ====== */
        .site-footer {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 24px;
        }
        .footer-brand a {
            font-size: 22px;
            font-weight: 700;
            color: var(--white);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        .footer-brand a:hover { color: var(--secondary); }
        .footer-brand i { color: var(--secondary); }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h4 {
            color: var(--white);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul a:hover { color: var(--white); }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ====== Responsive ====== */
        @media screen and (max-width: 1024px) {
            .header-inner { height: 64px; }
            .nav-card { padding: 8px 14px; font-size: 13px; }
            .nav-cta { padding: 8px 14px; font-size: 13px; }
            .feature-grid { grid-template-columns: repeat(2, 1fr); }
            .scenario-row { gap: 32px; }
        }

        @media screen and (max-width: 768px) {
            .menu-toggle { display: block; }
            .nav-menu {
                position: absolute;
                top: 64px;
                left: 16px;
                right: 16px;
                background: var(--navy);
                border-radius: var(--radius);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                display: none;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
                border: 1px solid rgba(255, 255, 255, 0.12);
            }
            .nav-menu.is-open { display: flex; }
            .nav-card, .nav-cta { justify-content: center; width: 100%; }
            .page-hero { margin-top: 64px; padding: 72px 0 56px; }
            .page-hero h1 { font-size: 30px; }
            .page-hero p { font-size: 15px; }
            .section { padding: 56px 0; }
            .section-title-wrap h2 { font-size: 24px; }
            .feature-grid { grid-template-columns: 1fr; }
            .data-grid { grid-template-columns: 1fr; }
            .scenario-row { flex-direction: column; gap: 24px; }
            .scenario-row .image-wrap { flex: none; width: 100%; }
            .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
        }

        @media screen and (max-width: 520px) {
            .site-logo { font-size: 18px; }
            .page-hero h1 { font-size: 26px; letter-spacing: 1px; }
            .section-title-wrap h2 { font-size: 22px; }
            .data-number { font-size: 34px; }
            .service-card { padding: 20px; }
            .feature-item { padding: 22px 16px; }
        }

/* roulang page: article */
:root {
    --primary: #0E6E62;
    --primary-dark: #085249;
    --primary-light: #E7F1EF;
    --secondary: #F0803C;
    --navy: #123936;
    --bg: #F5F6F4;
    --surface: #FFFFFF;
    --text: #1F2D2B;
    --text-secondary: #556664;
    --border: #DCE5E3;
    --white: #FFFFFF;
    --radius: 14px;
    --shadow: 0 4px 20px rgba(20, 60, 50, 0.06);
    --shadow-hover: 0 8px 30px rgba(20, 60, 50, 0.12);
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

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

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

ul, ol {
    list-style: none;
}

.grid-container {
    max-width: 1280px;
    padding-left: 20px;
    padding-right: 20px;
}

/* ===== 顶部导航 ===== */
.site-header {
    background: var(--navy);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 20px rgba(18, 57, 54, 0.18);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}

.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.site-logo i {
    color: var(--secondary);
    font-size: 24px;
}

.site-logo:hover {
    color: #fff;
    opacity: 0.92;
}

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

.nav-card,
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s;
    color: rgba(255, 255, 255, 0.92);
    border: none;
    cursor: pointer;
}

.nav-card {
    background: rgba(255, 255, 255, 0.06);
}

.nav-card:hover,
.nav-card.active {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    transform: translateY(-2px);
}

.nav-cta {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--primary-dark);
    color: #fff;
    box-shadow: 0 6px 20px rgba(14, 110, 98, 0.25);
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 20px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ===== 内容主体 ===== */
.page-main {
    padding: 40px 0 72px;
}

.breadcrumb {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
}

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

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

.breadcrumb .sep {
    margin: 0 8px;
    color: var(--border);
}

.breadcrumb .current {
    color: var(--primary);
    font-weight: 500;
}

.article-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 44px;
    margin-bottom: 32px;
    transition: box-shadow 0.3s;
}

.article-title {
    font-size: 32px;
    line-height: 1.45;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
    letter-spacing: 0;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 18px;
    margin-bottom: 28px;
    font-size: 13px;
    color: var(--text-secondary);
}

.article-meta i {
    color: var(--primary);
    margin-right: 4px;
}

.meta-category {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 3px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
}

.article-content {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text);
    word-break: break-word;
}

.article-content p {
    margin-bottom: 1.3em;
    text-indent: 2em;
}

.article-content p:last-child {
    margin-bottom: 0;
}

.article-content h2,
.article-content h3,
.article-content h4 {
    margin-top: 1.8em;
    margin-bottom: 0.8em;
    font-weight: 700;
    color: var(--text);
    text-indent: 0;
    line-height: 1.4;
}

.article-content h2 {
    font-size: 22px;
}

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

.article-content img {
    border-radius: 8px;
    margin: 24px 0;
    max-width: 100%;
}

.article-content ul {
    margin-bottom: 1.3em;
    padding-left: 1.2em;
    list-style: disc;
}

.article-content ol {
    margin-bottom: 1.3em;
    padding-left: 1.4em;
    list-style: decimal;
}

.article-content li {
    margin-bottom: 6px;
}

.article-content blockquote {
    margin: 1.6em 0;
    padding: 14px 20px;
    background: var(--primary-light);
    border-left: 4px solid var(--primary);
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
    font-size: 15px;
}

.article-content blockquote p {
    text-indent: 0;
}

.article-content a {
    text-decoration: underline;
    text-underline-offset: 4px;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.3em;
}

.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 10px 12px;
    font-size: 14px;
}

.article-content table th {
    background: var(--primary-light);
    font-weight: 600;
}

/* 文章标签 */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 28px 0 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.article-tags:empty {
    display: none;
}

.tag {
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 12px;
    padding: 5px 14px;
    border-radius: 999px;
    transition: all 0.3s;
}

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

/* 上一篇 / 下一篇 */
.article-pager {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    border-top: 1px solid var(--border);
    padding-top: 20px;
    font-size: 14px;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.article-pager a {
    color: var(--primary);
    font-weight: 500;
}

.article-pager a:hover {
    color: var(--primary-dark);
}

.article-not-found {
    text-align: center;
    padding: 70px 20px;
    color: var(--text-secondary);
    font-size: 16px;
}

.article-not-found p {
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 500;
}

.btn-secondary {
    display: inline-block;
    padding: 10px 28px;
    border: 1px solid var(--primary);
    border-radius: 10px;
    color: var(--primary);
    font-weight: 500;
    background: transparent;
    transition: all 0.3s;
}

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

/* ===== 相关推荐 ===== */
.related-section {
    background: var(--surface);
    padding: 64px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-head {
    text-align: center;
    margin-bottom: 40px;
}

.section-head .eyebrow {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 12px;
}

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

.section-head p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.related-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

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

.related-card .related-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.related-card .related-meta .badge {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 3px 10px;
    border-radius: 999px;
    font-weight: 500;
}

.related-card h3 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
}

.related-card h3 a {
    color: var(--text);
    transition: color 0.3s;
}

.related-card h3 a:hover {
    color: var(--primary);
}

.related-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card .read-more {
    margin-top: auto;
    font-size: 13px;
    color: var(--primary);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.related-card .read-more i {
    margin-left: 4px;
    transition: transform 0.3s;
}

.related-card .read-more:hover i {
    transform: translateX(4px);
}

/* ===== 文末 CTA ===== */
.article-cta-section {
    padding: 56px 0 72px;
}

.article-cta {
    position: relative;
    background: var(--navy);
    border-radius: var(--radius);
    padding: 52px 24px;
    text-align: center;
    color: #fff;
    overflow: hidden;
}

.article-cta::before {
    content: "";
    position: absolute;
    top: -40px;
    right: -40px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(240, 128, 60, 0.2) 0%, transparent 70%);
}

.article-cta::after {
    content: "";
    position: absolute;
    bottom: -60px;
    left: -60px;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(14, 110, 98, 0.25) 0%, transparent 70%);
}

.article-cta h2 {
    color: #fff;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.article-cta p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}

.btn-white {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--primary-dark);
    padding: 12px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s;
    position: relative;
    z-index: 1;
}

.btn-white:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 20px rgba(14, 110, 98, 0.25);
    transform: translateY(-2px);
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.7);
    padding: 56px 0 24px;
}

.footer-brand {
    margin-bottom: 20px;
}

.footer-brand .footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-brand .footer-logo i {
    color: var(--secondary);
}

.footer-brand p {
    font-size: 14px;
    max-width: 320px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
}

.footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

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

.footer-col ul a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .article-title {
        font-size: 30px;
    }

    .article-box {
        padding: 36px;
    }

    .header-inner {
        gap: 12px;
    }

    .nav-card,
    .nav-cta {
        padding: 9px 14px;
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .grid-container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .header-inner {
        height: 64px;
    }

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

    .site-logo i {
        font-size: 20px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--navy);
        flex-direction: column;
        padding: 16px;
        gap: 6px;
        align-items: stretch;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
        z-index: 999;
    }

    .nav-menu.is-open {
        display: flex;
    }

    .nav-card,
    .nav-cta {
        justify-content: center;
        padding: 12px 16px;
        font-size: 14px;
    }

    .menu-toggle {
        display: block;
    }

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

    .article-box {
        padding: 24px;
    }

    .article-title {
        font-size: 24px;
    }

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

    .related-section {
        padding: 40px 0;
    }

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

    .article-cta-section {
        padding: 40px 0 56px;
    }

    .article-cta {
        padding: 36px 16px;
    }

    .article-cta h2 {
        font-size: 22px;
    }

    .site-footer {
        padding: 40px 0 20px;
    }
}

@media (max-width: 520px) {
    .article-title {
        font-size: 21px;
        line-height: 1.4;
    }

    .article-box {
        padding: 20px 16px;
    }

    .article-meta {
        font-size: 12px;
        flex-direction: column;
        gap: 6px;
    }

    .article-content p {
        text-indent: 0;
    }

    .article-pager {
        flex-direction: column;
        gap: 8px;
    }

    .related-card {
        padding: 20px;
    }

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

/* roulang page: category3 */
:root {
            --primary: #0E6E62;
            --primary-dark: #085249;
            --primary-light: #E7F1EF;
            --secondary: #F0803C;
            --navy: #123936;
            --bg: #F5F6F4;
            --surface: #FFFFFF;
            --text: #1F2D2B;
            --text-secondary: #556664;
            --border: #DCE5E3;
            --white: #FFFFFF;
            --radius: 14px;
            --shadow: 0 4px 20px rgba(20, 60, 50, 0.06);
            --shadow-hover: 0 8px 30px rgba(20, 60, 50, 0.12);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--navy);
            padding: 12px 0;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--white);
            letter-spacing: 0.5px;
            padding: 4px 0;
        }

        .site-logo:hover {
            color: var(--white);
            opacity: 0.9;
        }

        .site-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, 0.14);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
        }

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

        .nav-menu .nav-card {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .nav-menu .nav-card i {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }

        .nav-menu .nav-card:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--white);
            transform: translateY(-2px);
            border-color: rgba(255, 255, 255, 0.12);
        }

        .nav-menu .nav-card.active {
            background: rgba(14, 110, 98, 0.45);
            color: var(--white);
            border-color: rgba(14, 110, 98, 0.6);
        }

        .nav-menu .nav-card.active i {
            color: var(--white);
        }

        .nav-menu .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            margin-left: 8px;
        }

        .nav-menu .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(14, 110, 98, 0.35);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--white);
            font-size: 20px;
            padding: 8px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 140px 0 80px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-color: var(--navy);
            min-height: 300px;
            display: flex;
            align-items: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 57, 54, 0.65);
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .page-hero .hero-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(240, 128, 60, 0.75);
            color: var(--white);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .page-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .page-hero .hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.8;
            max-width: 600px;
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: 80px 0;
        }

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

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head .section-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .section-head::before {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 0 auto 18px;
        }

        /* ===== Stats Cards ===== */
        .stats-row {
            margin-bottom: 40px;
        }

        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .stat-card .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .stat-card .stat-icon {
            font-size: 28px;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        /* ===== Service Cards ===== */
        .service-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 0;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .service-card .card-img {
            height: 200px;
            overflow: hidden;
            background: var(--primary-light);
        }

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

        .service-card:hover .card-img img {
            transform: scale(1.04);
        }

        .service-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .service-card .card-tag {
            display: inline-block;
            align-self: flex-start;
            padding: 3px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .service-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
        }

        .service-card .card-link {
            margin-top: 16px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .service-card .card-link i {
            transition: transform 0.3s ease;
        }

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

        /* ===== Process Steps ===== */
        .process-section {
            background: var(--navy);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .process-section::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.06);
        }

        .process-section .section-head h2 {
            color: var(--white);
        }

        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .process-section .section-head::before {
            background: var(--secondary);
        }

        .process-step {
            text-align: center;
            padding: 20px;
            position: relative;
        }

        .process-step .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 6px rgba(14, 110, 98, 0.2);
        }

        .process-step .step-icon {
            font-size: 30px;
            color: var(--secondary);
            margin-bottom: 12px;
        }

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

        .process-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            max-width: 260px;
            margin: 0 auto;
        }

        .process-step::after {
            content: '';
            position: absolute;
            right: -10px;
            top: 40%;
            width: 40px;
            height: 2px;
            background: rgba(255, 255, 255, 0.15);
        }

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

        /* ===== Security Features ===== */
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            transition: var(--transition);
        }

        .feature-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
            transform: translateX(4px);
        }

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

        .feature-item .feature-text h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .feature-item .feature-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .feature-visual {
            position: sticky;
            top: 120px;
        }

        .feature-visual .visual-card {
            background: var(--primary-light);
            border-radius: var(--radius);
            padding: 32px;
            text-align: center;
            border: 1px solid rgba(14, 110, 98, 0.15);
        }

        .feature-visual .visual-card .visual-icon {
            font-size: 64px;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .feature-visual .visual-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .feature-visual .visual-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

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

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 12px;
            transition: var(--transition);
            overflow: hidden;
        }

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

        .faq-item.faq-open {
            background: var(--primary-light);
            border-color: var(--primary);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
            transition: var(--transition);
        }

        .faq-item .faq-question i {
            color: var(--primary);
            transition: transform 0.3s ease;
            font-size: 14px;
        }

        .faq-item.faq-open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            display: none;
        }

        .faq-item.faq-open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-section .cta-content {
            text-align: center;
            position: relative;
            z-index: 2;
        }

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

        .cta-section .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            font-family: inherit;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 16px rgba(14, 110, 98, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(14, 110, 98, 0.4);
        }

        .btn-outline {
            background: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.7);
        }

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

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

        .btn-white:hover {
            background: rgba(255, 255, 255, 0.9);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 16px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }

        .footer-brand {
            margin-bottom: 20px;
        }

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

        .footer-logo:hover {
            color: var(--white);
            opacity: 0.9;
        }

        .footer-logo .logo-icon {
            font-size: 20px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-col {
            margin-bottom: 20px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--white);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .page-hero {
                padding: 120px 0 60px;
            }

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

            .section-block {
                padding: 64px 0;
            }

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

            .nav-menu .nav-card {
                padding: 8px 14px;
                font-size: 13px;
            }

            .nav-menu .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
                margin-left: 4px;
            }
        }

        @media screen and (max-width: 768px) {
            .site-header {
                padding: 10px 0;
            }

            .nav-toggle {
                display: block;
            }

            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: var(--navy);
                padding: 12px;
                border-radius: 12px;
                margin-top: 12px;
                gap: 6px;
            }

            .nav-menu.is-open {
                display: flex;
            }

            .nav-menu .nav-card {
                justify-content: flex-start;
                padding: 12px 16px;
            }

            .nav-menu .nav-cta {
                justify-content: center;
                margin-left: 0;
                margin-top: 4px;
            }

            .page-hero {
                padding: 110px 0 50px;
                min-height: auto;
            }

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

            .page-hero .hero-desc {
                font-size: 14px;
            }

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

            .section-head {
                margin-bottom: 36px;
            }

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

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

            .stats-row {
                margin-bottom: 24px;
            }

            .stat-card {
                padding: 20px 16px;
                margin-bottom: 16px;
            }

            .stat-card .stat-number {
                font-size: 28px;
            }

            .service-card .card-img {
                height: 160px;
            }

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

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

            .process-step {
                margin-bottom: 20px;
            }

            .process-step:last-child {
                margin-bottom: 0;
            }

            .faq-item .faq-question {
                padding: 16px;
                font-size: 14px;
            }

            .faq-item .faq-answer {
                padding: 0 16px 16px;
                font-size: 13px;
            }

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

            .cta-section .cta-title {
                font-size: 22px;
            }

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

            .btn-lg {
                padding: 14px 32px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }
        }

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

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

            .page-hero h1 {
                font-size: 24px;
            }

            .section-head h2 {
                font-size: 21px;
            }

            .service-card h3 {
                font-size: 17px;
            }

            .feature-item {
                padding: 16px;
                flex-direction: column;
                gap: 10px;
            }

            .feature-visual .visual-card {
                padding: 20px;
            }

            .feature-visual .visual-card .visual-icon {
                font-size: 48px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0E6E62;
            --primary-dark: #085249;
            --primary-light: #E7F1EF;
            --secondary: #F0803C;
            --navy: #123936;
            --bg: #F5F6F4;
            --surface: #FFFFFF;
            --text: #1F2D2B;
            --text-secondary: #556664;
            --border: #DCE5E3;
            --white: #FFFFFF;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow-card: 0 4px 20px rgba(20, 60, 50, 0.06);
            --shadow-hover: 0 8px 30px rgba(20, 60, 50, 0.12);
            --transition: all .3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            background: var(--bg);
            color: var(--text);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid rgba(240, 128, 60, .5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--navy);
            box-shadow: 0 2px 18px rgba(18, 57, 54, .35);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 18px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--white);
            font-size: 21px;
            font-weight: 700;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .brand-logo i {
            color: var(--secondary);
            font-size: 22px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: 1;
            justify-content: center;
        }
        .nav-card {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .06);
            color: rgba(255, 255, 255, .88);
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }
        .nav-card:hover {
            background: rgba(255, 255, 255, .12);
            color: var(--white);
            transform: translateY(-2px);
        }
        .nav-card.active {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(14, 110, 98, .35);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: var(--white);
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white);
            box-shadow: 0 6px 20px rgba(14, 110, 98, .25);
            transform: translateY(-1px);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: 0;
            color: var(--white);
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            box-shadow: 0 6px 20px rgba(14, 110, 98, .25);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, .7);
            color: var(--white);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            color: var(--white);
            border-color: var(--white);
        }
        .btn-light {
            background: var(--white);
            color: var(--primary-dark);
        }
        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .16);
        }
        .btn-secondary-o {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary-o:hover {
            background: rgba(14, 110, 98, .08);
            color: var(--primary-dark);
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-block-bg {
            background: var(--bg);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 84px 0 92px;
            color: var(--white);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 57, 54, .78);
        }
        .category-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }
        .category-hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .category-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, .88);
            max-width: 640px;
            line-height: 1.8;
        }
        .hero-ornament {
            position: absolute;
            right: 0;
            bottom: 0;
            z-index: 1;
            opacity: .12;
            width: 420px;
            pointer-events: none;
        }

        /* ===== Stats ===== */
        .stats-section {
            padding: 64px 0 72px;
        }
        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 34px 24px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .stat-num {
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-label {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            margin-top: 6px;
        }

        /* ===== Guide Cards ===== */
        .guide-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .guide-card-media {
            height: 190px;
            background: var(--primary-light);
            position: relative;
            overflow: hidden;
        }
        .guide-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }
        .guide-card:hover .guide-card-media img {
            transform: scale(1.03);
        }
        .guide-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card-head {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 12px;
        }
        .guide-card-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            flex-shrink: 0;
        }
        .guide-card-head h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text);
        }
        .guide-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 14px;
            flex-wrap: wrap;
        }
        .guide-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
        }
        .guide-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .guide-card-link i {
            transition: transform .3s ease;
        }
        .guide-card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Steps ===== */
        .steps-section {
            padding: 80px 0;
            background: var(--surface);
        }
        .step-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            height: 100%;
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .step-num {
            display: inline-block;
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            opacity: .35;
            line-height: 1;
            margin-bottom: 12px;
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Scenarios ===== */
        .scenarios-section {
            padding: 80px 0;
            background: var(--bg);
        }
        .scenario-row {
            align-items: center;
            margin-bottom: 64px;
        }
        .scenario-row:last-child {
            margin-bottom: 0;
        }
        .scenario-img {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 280px;
            background: var(--primary-light);
        }
        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scenario-content {
            padding: 0 8px;
        }
        .scenario-content .section-tag {
            margin-bottom: 10px;
        }
        .scenario-content h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .scenario-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .scene-label {
            display: inline-block;
            background: var(--primary-light);
            border: 1px solid rgba(14, 110, 98, .18);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 999px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-item[open] {
            background: var(--primary-light);
            border-color: var(--primary);
        }
        .faq-item summary {
            padding: 17px 20px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 13px;
            color: var(--primary);
            transition: transform .3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item p {
            padding: 0 20px 18px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        /* ===== CTA Bar ===== */
        .cta-bar {
            background: var(--primary);
            padding: 64px 0;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }
        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        .cta-inner h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-inner p {
            font-size: 15px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 26px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--navy);
            color: rgba(255, 255, 255, .72);
            padding: 64px 0 0;
            font-size: 14px;
        }
        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--white);
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            color: rgba(255, 255, 255, .6);
        }
        .footer-col h4 {
            color: var(--white);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--white);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin-top: 48px;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section-block,
            .steps-section,
            .scenarios-section,
            .faq-section {
                padding: 64px 0;
            }
            .category-hero {
                padding: 64px 0 72px;
            }
            .category-hero h1 {
                font-size: 34px;
            }
            .nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(18, 57, 54, .98);
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                display: none;
                gap: 8px;
                box-shadow: 0 14px 30px rgba(0, 0, 0, .3);
                border-top: 1px solid rgba(255, 255, 255, .08);
            }
            .nav-menu.is-open {
                display: flex;
            }
            .nav-card {
                justify-content: center;
                padding: 12px;
            }
            .nav-cta {
                justify-content: center;
                padding: 12px;
            }
            .menu-toggle {
                display: block;
                margin-left: auto;
            }
            .brand-logo {
                font-size: 18px;
            }
            .hero-ornament {
                width: 280px;
            }
        }
        @media (max-width: 768px) {
            .section-head h2 {
                font-size: 24px;
            }
            .category-hero {
                padding: 56px 0;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero p {
                font-size: 15px;
            }
            .guide-card-media {
                height: 170px;
            }
            .scenario-row {
                margin-bottom: 40px;
            }
            .scenario-img {
                height: 220px;
                margin-bottom: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .section-block,
            .steps-section,
            .scenarios-section,
            .faq-section {
                padding: 48px 0;
            }
            .stat-num {
                font-size: 34px;
            }
            .step-card {
                padding: 22px 18px;
            }
            .btn {
                padding: 12px 22px;
                font-size: 14px;
            }
            .cta-inner h2 {
                font-size: 22px;
            }
            .header-inner {
                height: 64px;
            }
            .nav-menu {
                top: 64px;
            }
        }