/* roulang page: index */
:root {
            --primary: #0B6B5E;
            --primary-dark: #074B42;
            --accent: #F56F28;
            --accent-dark: #E05D1A;
            --bg: #F6F4EF;
            --bg-soft: #E6F0EC;
            --bg-warm: #FCEBDC;
            --ink: #1F2A28;
            --ink-2: #5C6E6A;
            --border: #E3DED5;
            --white: #FFFFFF;
            --radius: 8px;
            --shadow-sm: 0 1px 4px rgba(18,50,45,.06);
            --shadow-md: 0 4px 16px rgba(15,72,63,.08);
            --shadow-lg: 0 8px 24px rgba(15,72,63,.12);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 48px;
        }
        .section-padding {
            padding: 88px 0;
        }
        .section-title {
            font-size: clamp(24px, 2.5vw, 34px);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: .02em;
            color: var(--ink);
        }
        .section-subtitle {
            font-size: 14px;
            color: var(--ink-2);
            line-height: 1.7;
            margin-top: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 4px;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            cursor: pointer;
            border: 1px solid transparent;
            transition: background .25s, color .25s, border-color .25s, transform .2s, box-shadow .25s;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--white);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(240, 111, 40, .25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(11, 107, 94, .06);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }
        .btn-outline-white {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, .7);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, .1);
            border-color: var(--white);
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .badge {
            display: inline-block;
            background: var(--bg-warm);
            color: var(--accent-dark);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            line-height: 1.5;
        }
        .nav-link {
            display: flex;
            align-items: center;
            height: 48px;
            padding: 0 16px;
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
            border-radius: 6px;
            transition: background .2s, color .2s;
            position: relative;
            gap: 14px;
            font-weight: 400;
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, .10);
            color: #fff;
        }
        .nav-link.active {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            font-weight: 600;
        }
        .nav-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
        }
        .nav-link:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .nav-icon {
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .nav-icon svg {
            width: 18px;
            height: 18px;
        }
        .card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            transition: box-shadow .3s, transform .3s;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .empty-state {
            border: 2px dashed var(--border);
            border-radius: var(--radius);
            min-height: 160px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 8px;
            color: var(--ink-2);
            font-size: 14px;
            background: rgba(255, 255, 255, .4);
        }
        .faq-item {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            transition: background .3s;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-item.open {
            background: var(--bg-soft);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            transition: color .2s;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--primary);
            flex-shrink: 0;
            background: var(--white);
            transition: transform .3s, background .3s, color .3s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 24px 24px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--ink-2);
        }
        .mobile-menu-overlay {
            position: fixed;
            inset: 0;
            background: var(--primary);
            z-index: 200;
            display: flex;
            flex-direction: column;
            padding: 24px;
            transform: translateX(100%);
            transition: transform .35s ease;
        }
        .mobile-menu-overlay.open {
            transform: translateX(0);
        }
        .mobile-menu-overlay .close-btn {
            align-self: flex-end;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 32px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 4px;
        }
        .mobile-menu-overlay .close-btn:focus-visible {
            outline: 2px solid var(--accent);
        }
        .mobile-menu-overlay nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 48px;
        }
        .mobile-menu-overlay nav a {
            color: rgba(255, 255, 255, .85);
            font-size: 20px;
            padding: 14px 8px;
            border-bottom: 1px solid rgba(255, 255, 255, .12);
            font-weight: 500;
            transition: color .2s, padding-left .2s;
        }
        .mobile-menu-overlay nav a:hover {
            color: #fff;
            padding-left: 14px;
        }
        .mobile-menu-overlay nav a.active {
            color: var(--accent);
            font-weight: 700;
        }
        .scroll-hidden {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .scroll-hidden::-webkit-scrollbar {
            display: none;
        }
        .data-stat {
            text-align: center;
            padding: 32px 16px;
            position: relative;
        }
        .data-stat+.data-stat::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 56px;
            background: rgba(255, 255, 255, .2);
        }
        .stat-number {
            font-size: clamp(28px, 3vw, 40px);
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .85);
            margin-top: 8px;
        }
        .service-row {
            display: flex;
            align-items: center;
            padding: 22px 8px;
            border-bottom: 1px solid var(--border);
            gap: 20px;
            transition: background .2s, padding-left .2s;
            cursor: pointer;
            position: relative;
        }
        .service-row:first-child {
            border-top: 1px solid var(--border);
        }
        .service-row:hover {
            background: rgba(230, 240, 236, .5);
            padding-left: 18px;
        }
        .service-row:hover::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
        }
        .service-num {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            width: 36px;
            flex-shrink: 0;
            text-align: center;
            font-variant-numeric: tabular-nums;
        }
        .service-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            width: 140px;
            flex-shrink: 0;
        }
        .service-desc {
            font-size: 14px;
            color: var(--ink-2);
            flex: 1;
            line-height: 1.6;
        }
        .case-card {
            min-width: 320px;
            height: 220px;
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            scroll-snap-align: start;
            background: var(--primary-dark);
            box-shadow: var(--shadow-sm);
            transition: box-shadow .3s;
        }
        .case-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .case-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .case-card:hover img {
            transform: scale(1.05);
        }
        .case-overlay {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 20px;
            background: linear-gradient(to top, var(--ink) 0%, transparent 100%);
            color: #fff;
        }
        .case-overlay .case-title {
            font-size: 17px;
            font-weight: 600;
            transition: transform .3s;
        }
        .case-card:hover .case-title {
            transform: translateY(-4px);
        }
        .case-overlay .case-sub {
            font-size: 13px;
            color: rgba(255, 255, 255, .8);
            margin-top: 2px;
        }
        .process-step {
            display: flex;
            align-items: flex-start;
            gap: 28px;
            padding: 32px 40px;
            border-radius: var(--radius);
            position: relative;
            background: var(--bg-soft);
        }
        .process-step:nth-child(even) {
            background: var(--bg-warm);
        }
        .process-step+.process-step {
            margin-top: 24px;
        }
        .process-step::before {
            content: '';
            position: absolute;
            left: 59px;
            top: -24px;
            width: 2px;
            height: 24px;
            background: var(--border);
        }
        .process-step:first-child::before {
            display: none;
        }
        .process-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }
        .process-step:nth-child(even) .process-num {
            background: var(--accent);
        }
        .process-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .process-desc {
            font-size: 14px;
            color: var(--ink-2);
            line-height: 1.7;
        }
        .footer-link {
            color: rgba(255, 255, 255, .6);
            font-size: 13px;
            line-height: 2;
            transition: color .2s, padding-left .2s;
            display: inline-block;
        }
        .footer-link:hover {
            color: rgba(255, 255, 255, .9);
            padding-left: 4px;
        }
        .footer-title {
            font-size: 14px;
            color: rgba(255, 255, 255, .9);
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: .02em;
        }
        @media (max-width: 1023px) {
            .container {
                padding: 0 32px;
            }
            .section-padding {
                padding: 72px 0;
            }
            .service-name {
                width: 110px;
                font-size: 16px;
            }
            .process-step {
                padding: 28px 24px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 20px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .service-row {
                flex-wrap: wrap;
                gap: 8px 16px;
                padding: 16px 8px;
            }
            .service-num {
                width: auto;
                font-size: 16px;
            }
            .service-name {
                width: auto;
                flex: 1;
                font-size: 16px;
            }
            .service-desc {
                width: 100%;
                padding-left: 52px;
                font-size: 13px;
            }
            .data-stat+.data-stat::before {
                top: 0;
                left: 50%;
                transform: translateX(-50%);
                width: auto;
                height: 1px;
            }
            .data-stat {
                padding: 20px 8px;
            }
            .case-card {
                min-width: 280px;
                height: 190px;
            }
            .process-step {
                flex-direction: column;
                gap: 12px;
                padding: 24px 20px;
            }
            .process-step::before {
                left: 56%;
                top: -24px;
                transform: translateX(-50%);
                height: 24px;
                width: 2px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0B6B5E;
            --primary-dark: #074B42;
            --accent: #F56F28;
            --accent-dark: #E05D1A;
            --bg: #F6F4EF;
            --bg-soft: #E6F0EC;
            --bg-warm: #FCEBDC;
            --ink: #1F2A28;
            --ink-2: #5C6E6A;
            --border: #E3DED5;
            --white: #FFFFFF;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.7;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a:focus,
        button:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 左侧导航 ===== */
        .sidebar {
            background: var(--primary);
            transition: width .2s ease;
        }
        .brand-area {
            padding: 32px 24px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand-logo {
            width: 40px;
            height: 40px;
            background: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .brand-text {
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            line-height: 1.3;
            white-space: nowrap;
        }
        .brand-sub {
            color: rgba(255, 255, 255, .6);
            font-size: 10px;
            letter-spacing: .1em;
            margin-top: 2px;
            white-space: nowrap;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            height: 48px;
            padding: 0 16px;
            color: rgba(255, 255, 255, .85);
            border-radius: 6px;
            transition: all .2s ease;
            position: relative;
            font-size: 15px;
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, .1);
            color: #fff;
        }
        .nav-link.active {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            font-weight: 600;
        }
        .nav-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
        }
        .nav-icon {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .nav-icon svg {
            width: 20px;
            height: 20px;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 4px;
            transition: all .2s ease;
            border: 2px solid var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(240, 110, 40, .25);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 4px;
            transition: all .2s ease;
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 24px;
            border-radius: 4px;
            transition: all .2s ease;
            border: 2px solid rgba(255, 255, 255, .7);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 24px;
            border-radius: 4px;
            transition: all .2s ease;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
        }

        /* ===== 标签 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-warm);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
        }
        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            background: var(--bg-soft);
            color: var(--primary);
        }

        /* ===== 信息行列表 ===== */
        .info-row {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 8px;
            border-bottom: 1px solid var(--border);
            transition: all .25s ease;
            position: relative;
        }
        .info-row:first-child {
            border-top: 1px solid var(--border);
        }
        .info-row:hover {
            background: var(--bg-soft);
            box-shadow: inset 3px 0 0 var(--accent);
        }
        .info-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--accent);
            min-width: 40px;
            text-align: center;
            font-variant-numeric: tabular-nums;
        }
        .info-date {
            min-width: 88px;
            font-size: 13px;
            color: var(--ink-2);
            font-variant-numeric: tabular-nums;
        }
        .info-content {
            flex: 1;
            min-width: 0;
        }
        .info-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            transition: color .2s;
            line-height: 1.4;
        }
        .info-row:hover .info-title {
            color: var(--primary);
        }
        .info-desc {
            font-size: 14px;
            color: var(--ink-2);
            margin-top: 4px;
            line-height: 1.6;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }
        .info-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            transition: color .2s;
        }
        .info-row:hover .info-link {
            color: var(--accent);
        }
        .info-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all .2s;
        }
        .info-more:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* ===== 表格 ===== */
        .data-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
            background: #fff;
        }
        .data-table th {
            background: var(--primary);
            color: #fff;
            padding: 14px 18px;
            font-weight: 600;
            font-size: 15px;
            text-align: left;
        }
        .data-table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            color: var(--ink);
            background: #fff;
        }
        .data-table tr:nth-child(even) td {
            background: #FAF8F4;
        }
        .data-table tr:hover td {
            background: var(--bg-soft);
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border);
            background: #fff;
            transition: background .3s;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-item.open {
            background: var(--bg-soft);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            transition: color .2s;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            transition: transform .3s ease, background .3s, color .3s;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--ink-2);
            line-height: 1.8;
        }

        /* ===== 流程 ===== */
        .process-step {
            display: flex;
            gap: 20px;
            padding: 22px 20px;
            border-radius: 8px;
            background: var(--bg-soft);
            margin-bottom: 24px;
            position: relative;
            transition: transform .2s, box-shadow .2s;
        }
        .process-step:hover {
            transform: translateX(4px);
            box-shadow: 0 4px 16px rgba(15, 72, 63, .08);
        }
        .process-step:nth-child(even) {
            background: var(--bg-warm);
        }
        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 40px;
            bottom: -24px;
            width: 2px;
            height: 24px;
            background: dashed var(--primary);
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .process-step:nth-child(3) .step-num {
            background: var(--accent);
        }

        /* ===== 页脚 ===== */
        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 14px;
        }
        .footer-link {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            transition: color .2s, padding-left .2s;
        }
        .footer-link:hover {
            color: #fff;
            padding-left: 3px;
        }

        /* ===== 隐藏滚动条 ===== */
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        /* ===== 移动菜单 ===== */
        .mobile-menu-link {
            display: flex;
            align-items: center;
            padding: 14px 4px;
            color: rgba(255, 255, 255, .8);
            font-size: 17px;
            border-left: 3px solid transparent;
            transition: all .2s;
        }
        .mobile-menu-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .06);
        }
        .mobile-menu-link.active {
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
            background: rgba(255, 255, 255, .08);
        }

        /* ===== 响应式 ===== */
        @media (min-width:768px) and (max-width:1023px) {
            .sidebar {
                width: 64px;
            }
            .brand-area {
                padding: 24px 0;
                justify-content: center;
            }
            .brand-text,
            .brand-sub {
                display: none;
            }
            .nav-link {
                justify-content: center;
                padding: 0;
            }
            .nav-link .nav-text {
                display: none;
            }
            .nav-link.active::before {
                left: 0;
                right: auto;
            }
            .sidebar-footer .btn-text {
                display: none;
            }
            .sidebar-footer .btn-accent {
                width: 44px;
                height: 44px;
                padding: 0;
                border-radius: 50%;
                justify-content: center;
                margin: 0 auto;
            }
        }
        @media (max-width:767px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .info-row {
                flex-wrap: wrap;
                gap: 10px;
                padding: 18px 6px;
            }
            .info-num {
                display: none;
            }
            .info-date {
                min-width: auto;
                font-size: 12px;
            }
            .info-content {
                flex-basis: 100%;
                order: 3;
            }
            .info-link {
                display: none;
            }
            .data-table th,
            .data-table td {
                padding: 10px 10px;
                font-size: 13px;
            }
            .process-step {
                flex-wrap: wrap;
                padding: 16px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0B6B5E;
            --primary-dark: #074B42;
            --accent: #F56F28;
            --accent-dark: #E05D1A;
            --bg: #F6F4EF;
            --bg-soft: #E6F0EC;
            --bg-warm: #FCEBDC;
            --ink: #1F2A28;
            --ink-2: #5C6E6A;
            --border: #E3DED5;
            --white: #FFFFFF;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        /* 左侧导航链接 */
        .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 48px;
            padding: 0 14px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            border-radius: 8px;
            transition: all 0.25s ease;
            position: relative;
        }

        @media (min-width: 1024px) {
            .nav-link {
                padding: 0 16px;
            }
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.10);
            color: #fff;
        }

        .nav-link.active {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-weight: 600;
        }

        .nav-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
        }

        .nav-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .nav-icon svg {
            width: 20px;
            height: 20px;
        }

        @media (min-width: 768px) and (max-width: 1023px) {
            .nav-link {
                justify-content: center;
                padding: 0;
            }
            .nav-link.active::before {
                width: 2px;
            }
        }

        .mobile-nav-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            color: #fff;
            font-size: 20px;
            font-weight: 600;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            transition: all 0.25s ease;
        }

        .mobile-nav-link:hover {
            color: var(--accent);
            padding-left: 8px;
        }

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

        /* 按钮 */
        .btn-app {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 16px;
            background: var(--accent);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            border-radius: 6px;
            transition: all 0.3s ease;
        }

        .btn-app:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(240, 111, 40, 0.3);
        }

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

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--white);
            border: 1px solid var(--border);
            color: var(--ink-2);
            font-size: 14px;
            font-weight: 500;
            border-radius: 6px;
            transition: all 0.25s ease;
        }

        .btn-back:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--bg-soft);
        }

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

        /* 面包屑 */
        .breadcrumb-link {
            color: var(--ink-2);
            font-size: 14px;
            transition: color 0.2s;
        }

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

        /* 标签 */
        .tag-badge {
            display: inline-block;
            padding: 6px 16px;
            background: #F0EEE9;
            color: var(--ink-2);
            font-size: 13px;
            border-radius: 999px;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }

        .tag-badge:hover {
            background: var(--bg-warm);
            color: var(--accent-dark);
            border-color: rgba(240, 111, 40, 0.2);
        }

        /* 相关阅读卡片 */
        .relate-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s ease;
            display: block;
        }

        .relate-card:hover {
            box-shadow: 0 8px 24px rgba(15, 72, 63, 0.12);
            transform: translateY(-4px);
        }

        .relate-card .relate-cover {
            overflow: hidden;
        }

        .relate-card .relate-cover img {
            transition: transform 0.4s ease;
            width: 100%;
            height: 176px;
            object-fit: cover;
        }

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

        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 文章正文 */
        .article-content {
            font-size: 16px;
            line-height: 1.85;
            color: var(--ink);
        }

        .article-content p {
            margin-bottom: 0.9em;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 1.8em 0 0.6em;
            color: var(--ink);
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 1.5em 0 0.5em;
            color: var(--ink);
        }

        .article-content h4 {
            font-size: 18px;
            font-weight: 600;
            margin: 1.3em 0 0.5em;
        }

        .article-content img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 1.5em 0;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-soft);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 1.5em 0;
            color: var(--ink-2);
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            overflow-wrap: break-word;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 1.5em;
            margin: 1em 0;
        }

        .article-content li {
            margin-bottom: 0.4em;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 14px;
            border-radius: 8px;
            overflow: hidden;
        }

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

        .article-content th {
            background: var(--bg-soft);
            font-weight: 600;
        }

        .article-content pre {
            background: var(--ink);
            color: #fff;
            padding: 16px 20px;
            border-radius: 8px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.6;
            margin: 1.5em 0;
        }

        .article-content code {
            font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
        }

        /* 页脚 */
        .footer-title {
            color: rgba(255, 255, 255, 0.92);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            padding: 4px 0;
            display: inline-block;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: #fff;
        }

        #mobileMenu.hidden {
            display: none !important;
        }

/* roulang page: category3 */
:root {
    --primary: #0B6B5E;
    --primary-dark: #074B42;
    --accent: #F56F28;
    --accent-dark: #E05D1A;
    --bg: #F6F4EF;
    --bg-soft: #E6F0EC;
    --bg-warm: #FCEBDC;
    --ink: #1F2A28;
    --ink-2: #5C6E6A;
    --border: #E3DED5;
    --white: #FFFFFF;
    --data-yellow: #D9B36C;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg);
    color: var(--ink);
    line-height: 1.8;
    font-size: 16px;
}
a {
    text-decoration: none;
    color: inherit;
}
img {
    max-width: 100%;
    display: block;
}
button {
    cursor: pointer;
    border: none;
    background: none;
}
.container {
    max-width: 1180px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
}
@media (min-width: 1024px) {
    .container {
        padding-left: 48px;
        padding-right: 48px;
    }
}
/* 左侧导航 */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 256px;
    background: var(--primary);
    z-index: 50;
    display: flex;
    flex-direction: column;
    transition: width .3s ease;
}
.sidebar .brand-area {
    padding: 32px 24px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.sidebar .brand-logo {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: var(--primary-dark);
    flex-shrink: 0;
}
.sidebar .brand-text {
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: .02em;
    line-height: 1.3;
    white-space: nowrap;
}
.sidebar .brand-sub {
    color: rgba(255,255,255,.6);
    font-size: 10px;
    letter-spacing: .08em;
    margin-top: 2px;
}
.nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    height: 48px;
    padding: 0 16px;
    margin-bottom: 2px;
    color: rgba(255,255,255,.85);
    font-size: 15px;
    transition: all .2s ease;
    border-left: 3px solid transparent;
    white-space: nowrap;
}
.nav-link:hover {
    background: rgba(255,255,255,.10);
    border-left-color: rgba(255,255,255,.45);
    color: #fff;
}
.nav-link.active {
    background: rgba(255,255,255,.12);
    border-left-color: var(--accent);
    color: #fff;
    font-weight: 600;
}
.nav-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nav-icon svg {
    width: 20px;
    height: 20px;
}
.sidebar-bottom {
    padding: 20px 24px 24px;
}
.sidebar-bottom .copyright {
    color: rgba(255,255,255,.6);
    font-size: 12px;
    text-align: center;
    margin-top: 12px;
}
/* 内容区 */
.main-content {
    margin-left: 256px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
/* 移动端顶部 */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    z-index: 60;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
}
.mobile-header .m-brand {
    color: var(--primary);
    font-weight: 800;
    font-size: 18px;
}
.mobile-drawer {
    position: fixed;
    inset: 0;
    background: var(--primary);
    z-index: 70;
    display: flex;
    flex-direction: column;
    padding: 24px;
    transform: translateX(-100%);
    transition: transform .35s ease;
}
.mobile-drawer.open {
    transform: translateX(0);
}
.mobile-drawer .close-btn {
    align-self: flex-end;
    color: #fff;
    font-size: 24px;
    padding: 8px;
}
.mobile-drawer .drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 40px;
    flex: 1;
}
.mobile-drawer .drawer-link {
    color: #fff;
    font-size: 20px;
    font-weight: 500;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255,255,255,.1);
    position: relative;
}
.mobile-drawer .drawer-link.active {
    color: var(--accent);
}
.mobile-drawer .drawer-link::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}
/* Hero */
.category-hero {
    background: linear-gradient(135deg, #E6F0EC 0%, #F0F6F3 100%);
    border-bottom: 1px solid var(--border);
    padding: 64px 0 56px;
    position: relative;
    overflow: hidden;
}
.category-hero .hero-grid {
    display: grid;
    grid-template-columns: 58% 1fr;
    gap: 48px;
    align-items: center;
}
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-warm);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid #F5D5BC;
}
.category-hero h1 {
    font-size: clamp(32px, 3.6vw, 46px);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: .02em;
    color: var(--ink);
    margin: 16px 0 18px;
}
.category-hero h1 .accent-text {
    color: var(--primary);
}
.category-hero .subtitle {
    font-size: 17px;
    line-height: 1.75;
    color: var(--ink-2);
    max-width: 560px;
}
.hero-img-wrap {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(15,72,63,.14);
    height: 300px;
}
.hero-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(7,75,66,.25), transparent 60%);
    pointer-events: none;
}
/* 信息行列表 */
.info-list {
    padding: 88px 0;
}
.info-list-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 32px;
}
.info-list-header h2 {
    font-size: clamp(24px, 2.4vw, 32px);
    font-weight: 700;
    color: var(--ink);
    letter-spacing: .02em;
    line-height: 1.25;
}
.info-list-header p {
    font-size: 14px;
    color: var(--ink-2);
    margin-top: 6px;
}
.info-row {
    display: grid;
    grid-template-columns: 92px 1fr auto;
    gap: 24px;
    align-items: center;
    padding: 22px 8px;
    border-bottom: 1px solid var(--border);
    border-left: 3px solid transparent;
    transition: all .25s ease;
    position: relative;
}
.info-row:first-of-type {
    border-top: 1px solid var(--border);
}
.info-row:hover {
    border-left-color: var(--accent);
    background: rgba(255,255,255,.6);
    box-shadow: inset 0 0 0 1px var(--border);
}
.info-row .row-tag {
    display: inline-block;
    background: var(--bg-warm);
    color: var(--accent-dark);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
    text-align: center;
    white-space: nowrap;
}
.info-row .row-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    transition: color .2s;
}
.info-row:hover .row-title {
    color: var(--primary);
}
.info-row .row-desc {
    font-size: 14px;
    color: var(--ink-2);
    margin-top: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.info-row .row-date {
    font-size: 13px;
    color: var(--ink-2);
    white-space: nowrap;
    text-align: right;
}
.info-row .row-arrow {
    color: var(--primary);
    font-size: 13px;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
    opacity: .8;
    transition: opacity .2s;
}
.info-row:hover .row-arrow {
    opacity: 1;
}
/* 全宽图片区 */
.feature-block {
    padding: 0 0 88px;
}
.feature-image-card {
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    height: 420px;
    box-shadow: 0 16px 40px rgba(15,72,63,.16);
}
.feature-image-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.feature-image-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(7,75,66,.75) 100%);
}
.feature-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 36px 40px;
    z-index: 2;
    color: #fff;
}
.feature-caption h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}
.feature-caption p {
    font-size: 14px;
    color: rgba(255,255,255,.85);
    max-width: 520px;
    line-height: 1.7;
}
.feature-text {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 48px;
    margin-top: 40px;
}
.feature-text .text-main {
    font-size: 17px;
    line-height: 1.85;
    color: var(--ink);
}
.feature-text .text-main strong {
    color: var(--primary);
    font-weight: 700;
}
.feature-text .text-sub {
    font-size: 15px;
    line-height: 1.8;
    color: var(--ink-2);
}
/* 表格 */
.table-section {
    padding: 0 0 88px;
}
.table-heading {
    text-align: center;
    margin-bottom: 40px;
}
.table-heading h2 {
    font-size: clamp(24px, 2.4vw, 32px);
    font-weight: 700;
    color: var(--ink);
}
.table-heading p {
    font-size: 14px;
    color: var(--ink-2);
    margin-top: 8px;
}
.custom-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    background: var(--white);
    box-shadow: 0 4px 16px rgba(18,50,45,.04);
}
.custom-table thead th {
    background: var(--primary);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    padding: 16px 24px;
    text-align: left;
    letter-spacing: .02em;
}
.custom-table tbody td {
    padding: 16px 24px;
    font-size: 15px;
    color: var(--ink);
    border-top: 1px solid var(--border);
}
.custom-table tbody tr:nth-child(even) {
    background: rgba(230,240,236,.4);
}
.custom-table tbody tr:hover {
    background: var(--bg-soft);
}
.custom-table td .table-tag {
    display: inline-block;
    background: var(--bg-warm);
    color: var(--accent-dark);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 999px;
    margin-right: 6px;
}
/* FAQ */
.faq-section {
    padding: 0 0 88px;
}
.faq-grid {
    display: grid;
    grid-template-columns: 35% 1fr;
    gap: 48px;
}
.faq-left h2 {
    font-size: clamp(24px, 2.4vw, 32px);
    font-weight: 700;
    color: var(--ink);
    line-height: 1.25;
}
.faq-left p {
    font-size: 14px;
    color: var(--ink-2);
    margin-top: 12px;
    line-height: 1.7;
}
.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: all .3s ease;
}
.faq-item.active {
    background: var(--bg-soft);
    border-color: var(--primary);
    box-shadow: 0 4px 16px rgba(15,72,63,.08);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    cursor: pointer;
    transition: color .2s;
}
.faq-question:hover {
    color: var(--primary);
}
.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
    transition: all .3s ease;
}
.faq-item.active .faq-icon {
    background: var(--primary);
    color: #fff;
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
}
.faq-answer-inner {
    padding: 0 24px 24px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--ink-2);
}
/* CTA */
.cta-block {
    padding: 0 0 88px;
}
.cta-card {
    background: var(--bg-warm);
    border: 1px solid #F0D5BD;
    border-radius: 16px;
    padding: 40px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
}
.cta-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--accent);
    border-radius: 4px 0 0 4px;
}
.cta-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 6px;
}
.cta-card p {
    font-size: 14px;
    color: var(--ink-2);
}
.cta-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    transition: all .25s ease;
    border: 1px solid transparent;
    white-space: nowrap;
}
.btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 14px rgba(245,111,40,.25);
}
.btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(224,93,26,.3);
}
.btn-outline-light {
    background: transparent;
    color: var(--primary-dark);
    border-color: var(--primary-dark);
}
.btn-outline-light:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
}
.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(11,107,94,.25);
}
.btn:focus-visible,
.nav-link:focus-visible,
.footer-link:focus-visible,
.faq-question:focus-visible,
a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
/* 页脚 */
.footer-title {
    color: rgba(255,255,255,.9);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: .04em;
}
.footer-link {
    display: inline-block;
    color: rgba(255,255,255,.6);
    font-size: 13px;
    padding: 4px 0;
    transition: all .2s ease;
}
.footer-link:hover {
    color: #fff;
    padding-left: 4px;
}
.copyright-bar {
    border-top: 1px solid rgba(255,255,255,.15);
    padding-top: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: rgba(255,255,255,.7);
    font-size: 13px;
}
/* 响应式 */
@media (max-width: 1024px) {
    .sidebar {
        width: 64px;
    }
    .sidebar .brand-area {
        padding: 24px 12px 16px;
        justify-content: center;
    }
    .sidebar .brand-text,
    .sidebar .brand-sub {
        display: none;
    }
    .sidebar .nav-link {
        padding: 0 12px;
        justify-content: center;
        border-left: none;
        border-top: 3px solid transparent;
    }
    .sidebar .nav-link:hover,
    .sidebar .nav-link.active {
        border-left-color: transparent;
        border-top-color: var(--accent);
    }
    .sidebar-bottom {
        padding: 12px;
        text-align: center;
    }
    .sidebar .sidebar-bottom .btn span {
        display: none;
    }
    .sidebar .sidebar-bottom .btn {
        padding: 12px;
        border-radius: 8px;
    }
    .sidebar-bottom .copyright {
        font-size: 10px;
        writing-mode: vertical-rl;
        white-space: nowrap;
        margin-top: 8px;
    }
    .main-content {
        margin-left: 64px;
    }
    .category-hero .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .hero-img-wrap {
        height: 240px;
        max-width: 640px;
    }
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .feature-text {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}
@media (max-width: 767px) {
    .sidebar {
        display: none;
    }
    .main-content {
        margin-left: 0;
        padding-top: 64px;
    }
    .mobile-header {
        display: flex;
    }
    .category-hero {
        padding: 40px 0 36px;
    }
    .category-hero .hero-grid {
        gap: 24px;
    }
    .category-hero h1 {
        font-size: 30px;
    }
    .info-row {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 18px 6px;
    }
    .info-row .row-date {
        text-align: left;
    }
    .info-row .row-arrow {
        justify-content: flex-start;
    }
    .feature-image-card {
        height: 280px;
    }
    .feature-caption {
        padding: 24px;
    }
    .feature-caption h3 {
        font-size: 20px;
    }
    .custom-table {
        font-size: 13px;
    }
    .custom-table thead th,
    .custom-table tbody td {
        padding: 12px 14px;
        font-size: 13px;
    }
    .cta-card {
        padding: 32px 24px;
        flex-direction: column;
        align-items: flex-start;
    }
    .cta-actions {
        width: 100%;
    }
    .cta-actions .btn {
        flex: 1;
    }
    .copyright-bar {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* roulang page: category2 */
:root {
    --primary: #0B6B5E;
    --primary-dark: #074B42;
    --accent: #F56F28;
    --accent-dark: #E05D1A;
    --bg: #F6F4EF;
    --bg-soft: #E6F0EC;
    --bg-warm: #FCEBDC;
    --ink: #1F2A28;
    --ink-2: #5C6E6A;
    --border: #E3DED5;
    --white: #FFFFFF;
    --data-yellow: #D9B36C;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.8;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; }

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}
@media (min-width: 1024px) {
    .container { padding: 0 48px; }
}

/* 侧边栏 */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 64px;
    background: var(--primary);
    z-index: 50;
    display: none;
    flex-direction: column;
}
@media (min-width: 768px) {
    .sidebar { display: flex; }
}
@media (min-width: 1024px) {
    .sidebar { width: 256px; }
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 48px;
    padding: 0 14px;
    color: rgba(255,255,255,.85);
    font-size: 15px;
    border-radius: 6px;
    transition: background .2s;
    position: relative;
}
.nav-link:hover {
    background: rgba(255,255,255,.10);
    color: #fff;
}
.nav-link.active {
    background: rgba(255,255,255,.12);
    color: #fff;
    font-weight: 600;
}
.nav-link.active::before {
    content: '';
    position: absolute;
    left: -2px;
    top: 12px;
    bottom: 12px;
    width: 3px;
    background: var(--accent);
    border-radius: 0 3px 3px 0;
}
.nav-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nav-icon svg {
    width: 20px;
    height: 20px;
}
@media (min-width: 768px) and (max-width: 1023px) {
    .nav-link { justify-content: center; padding: 0; }
    .sidebar-brand-inner { justify-content: center; }
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 44px;
    background: var(--accent);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    transition: background .2s, transform .2s;
}
.download-btn:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
}

/* 主内容偏移 */
.main-content {
    margin-top: 64px;
}
@media (min-width: 768px) {
    .main-content { margin-top: 0; margin-left: 64px; }
}
@media (min-width: 1024px) {
    .main-content { margin-left: 256px; }
}

/* 移动端导航 */
.mobile-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    background: var(--white);
    z-index: 45;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
}
@media (min-width: 768px) {
    .mobile-header { display: none; }
}
.mobile-menu {
    position: fixed;
    inset: 0;
    background: var(--primary);
    z-index: 60;
    display: none;
    flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-nav-link {
    display: block;
    color: rgba(255,255,255,.9);
    font-size: 20px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,.1);
    text-align: center;
}
.mobile-nav-link.active {
    color: #fff;
    font-weight: 700;
    border-bottom: 2px solid var(--accent);
}

/* 板块间距 */
.section-pad { padding: 88px 0; }
@media (max-width: 768px) {
    .section-pad { padding: 56px 0; }
}

/* 背景辅助色 */
.bg-soft-tint { background: rgba(230,240,236,.6); }
.bg-warm-tint { background: rgba(252,235,220,.55); }

/* 服务列表 */
.service-row {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 16px;
    border-bottom: 1px solid var(--border);
    position: relative;
    transition: background .2s;
}
.service-row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent);
    opacity: 0;
    transition: opacity .2s;
}
.service-row:first-child { border-top: 1px solid var(--border); }
.service-row:hover::before { opacity: 1; }
.service-row:hover { background: rgba(255,255,255,.6); }
.service-row:hover .service-title { color: var(--primary); }
.service-num {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    width: 36px;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}
.service-info { flex: 1; }
.service-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    transition: color .2s;
}
.service-desc {
    font-size: 14px;
    color: var(--ink-2);
    margin-top: 2px;
}
.service-arrow {
    color: #C9C2B8;
    font-size: 20px;
    transition: color .2s;
}
.service-row:hover .service-arrow { color: var(--accent); }

/* 数据统计数字 */
.stat-number {
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}
.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,.85);
    margin-top: 4px;
}

/* 横向滚动卡片 */
.scroll-wrap {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.scroll-wrap::-webkit-scrollbar { display: none; }
.snap-card {
    scroll-snap-align: start;
    flex-shrink: 0;
    width: 320px;
    height: 220px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    display: block;
    box-shadow: 0 1px 4px rgba(18,50,45,.06);
}
.snap-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s;
}
.snap-card:hover img { transform: scale(1.05); }
.snap-card-overlay {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 18px 16px;
    background: linear-gradient(to top, rgba(31,42,40,.88), transparent);
    color: #fff;
}
.snap-card-tag {
    display: inline-block;
    font-size: 11px;
    background: var(--accent);
    color: #fff;
    border-radius: 999px;
    padding: 2px 10px;
    margin-bottom: 6px;
    letter-spacing: .02em;
}
.snap-card-title {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    transition: transform .4s;
}
.snap-card:hover .snap-card-title { transform: translateY(-4px); }

/* 表格 */
.table-wrap {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--white);
    box-shadow: 0 1px 4px rgba(18,50,45,.05);
}
.table-wrap table {
    width: 100%;
    border-collapse: collapse;
}
.table-wrap th {
    background: var(--bg-soft);
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    text-align: left;
    padding: 16px 20px;
}
.table-wrap td {
    padding: 16px 20px;
    font-size: 14px;
    color: var(--ink-2);
    border-top: 1px solid var(--border);
}
.table-wrap tbody tr { transition: background .2s; }
.table-wrap tbody tr:nth-child(even) { background: #FBFAF7; }
.table-wrap tbody tr:hover { background: var(--bg-soft); }
.table-wrap tbody td:first-child {
    font-weight: 600;
    color: var(--ink);
}

/* 步骤路径 */
.step-list { position: relative; }
.step-list::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 24px;
    bottom: 24px;
    width: 2px;
    border-left: 2px dashed rgba(11,107,94,.35);
}
.step-item {
    position: relative;
    display: flex;
    gap: 20px;
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 24px;
}
.step-item:last-child { margin-bottom: 0; }
.step-item:nth-child(odd) { background: var(--bg-soft); }
.step-item:nth-child(even) { background: var(--bg-warm); }
.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}
.step-item:nth-child(even) .step-number { background: var(--accent); }
.step-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
}
.step-desc {
    font-size: 14px;
    color: var(--ink-2);
    margin-top: 4px;
}

/* FAQ */
.faq-item {
    border-bottom: 1px solid var(--border);
    background: var(--white);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 24px;
    background: transparent;
    border: none;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    text-align: left;
    transition: background .2s;
    cursor: pointer;
}
.faq-question:hover { background: var(--bg-soft); }
.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--primary);
    flex-shrink: 0;
    transition: transform .3s, background .2s, border-color .2s;
}
.faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
    background: var(--bg-soft);
    padding: 0 24px;
    font-size: 15px;
    color: var(--ink-2);
    line-height: 1.8;
}
.faq-item.active .faq-answer {
    max-height: 600px;
    padding: 0 24px 24px;
}

/* 按钮系统 */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 28px;
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: 4px;
    border: none;
    transition: background .2s, transform .2s, box-shadow .2s;
    cursor: pointer;
    white-space: nowrap;
}
.btn-primary:hover {
    background: var(--accent-dark);
    box-shadow: 0 6px 16px rgba(245,111,40,.25);
    transform: translateY(-1px);
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 28px;
    background: transparent;
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
    border-radius: 4px;
    border: 1px solid var(--primary);
    transition: background .2s, transform .2s;
    cursor: pointer;
    white-space: nowrap;
}
.btn-outline:hover {
    background: rgba(11,107,94,.08);
    transform: translateY(-1px);
}
.btn-primary:focus-visible,
.btn-outline:focus-visible,
.faq-question:focus-visible,
.nav-link:focus-visible,
.mobile-nav-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* 页脚 */
.footer-title {
    color: rgba(255,255,255,.9);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}
.footer-link {
    color: rgba(255,255,255,.6);
    font-size: 13px;
    line-height: 2.2;
    transition: color .2s;
}
.footer-link:hover { color: #fff; }

/* 其它辅助 */
.section-title {
    font-size: clamp(24px, 2.5vw, 34px);
    font-weight: 700;
    line-height: 1.25;
    color: var(--ink);
    letter-spacing: .02em;
}
.two-line-clamp {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}