/* roulang page: index */
:root {
            --primary: #1E6FD9;
            --primary-hover: #1a5fbe;
            --primary-light: #E8F1FC;
            --secondary-bg: #F3F6FA;
            --border-color: #E5EAF1;
            --text-main: #17233B;
            --text-secondary: #5B6779;
            --text-light: #8A96A8;
            --bg-white: #FFFFFF;
            --bg-light-blue: #F7F9FC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-button: 8px;
            --shadow-card: 0 2px 8px rgba(23, 35, 59, 0.08);
            --shadow-card-hover: 0 8px 20px rgba(30, 111, 217, 0.16);
            --shadow-nav: 0 1px 4px rgba(23, 35, 59, 0.06);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.25s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 96px 0;
        }
        .section-padding-alt {
            padding: 88px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            letter-spacing: 0.01em;
            position: relative;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(30, 111, 217, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-ghost {
            background: transparent;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 6px;
        }
        .btn-ghost:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .tag-alt {
            background: #EEF2F7;
            color: var(--text-secondary);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            background: #E8F5E9;
            color: #2E7D32;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }
        @media (max-width: 1023px) {
            .section-padding {
                padding: 64px 0;
            }
            .section-padding-alt {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .container {
                padding: 0 20px;
            }
        }
        @media (max-width: 767px) {
            .section-padding {
                padding: 48px 0;
            }
            .section-padding-alt {
                padding: 40px 0;
            }
            .section-title {
                font-size: 21px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .container {
                padding: 0 16px;
            }
            .stat-number {
                font-size: 28px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1E6FD9;
            --primary-hover: #1a5fbe;
            --primary-light: #E8F1FC;
            --secondary-bg: #F3F6FA;
            --border-color: #E5EAF1;
            --text-main: #17233B;
            --text-secondary: #5B6779;
            --text-light: #8A96A8;
            --bg-white: #FFFFFF;
            --bg-light-blue: #F7F9FC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-button: 8px;
            --shadow-card: 0 2px 8px rgba(23, 35, 59, 0.08);
            --shadow-card-hover: 0 8px 20px rgba(30, 111, 217, 0.16);
            --shadow-nav: 0 1px 4px rgba(23, 35, 59, 0.06);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 88px 0;
        }
        .section-padding-alt {
            padding: 80px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            letter-spacing: 0.01em;
            position: relative;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(30, 111, 217, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-ghost {
            background: transparent;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 6px;
        }
        .btn-ghost:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .tag-alt {
            background: #EEF2F7;
            color: var(--text-secondary);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            background: #E8F5E9;
            color: #2E7D32;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .table-responsive {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 720px;
        }
        .data-table th {
            text-align: left;
            padding: 12px 16px;
            background: var(--bg-light-blue);
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 13px;
            white-space: nowrap;
            border-bottom: 1px solid var(--border-color);
        }
        .data-table td {
            padding: 16px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-main);
            vertical-align: middle;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #FBFCFE;
        }
        .filter-bar {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            box-shadow: 0 1px 3px rgba(23, 35, 59, 0.04);
        }
        .filter-select,
        .filter-input {
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--bg-white);
            color: var(--text-main);
            font-size: 14px;
            transition: var(--transition);
            min-width: 140px;
        }
        .filter-select:focus,
        .filter-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.15);
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 12px;
            background: #fff;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-main);
            background: #fff;
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 20px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            border-left: 3px solid var(--primary);
            margin-left: 20px;
            padding-left: 16px;
        }
        .faq-item.open .faq-answer {
            max-height: 240px;
        }
        .faq-item.open .faq-question {
            color: var(--primary);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-light);
        }
        .compact-header {
            background: linear-gradient(180deg, var(--bg-light-blue) 0%, #fff 100%);
            padding: 32px 0 36px;
            border-bottom: 1px solid var(--border-color);
        }
        .stat-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            font-family: 'Inter', 'Roboto', sans-serif;
        }
        .stat-label {
            font-size: 12px;
            color: var(--text-light);
        }
        .ranking-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-color);
            gap: 12px;
        }
        .ranking-item:last-child {
            border-bottom: none;
        }
        .ranking-position {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            color: #fff;
            background: var(--text-light);
            flex-shrink: 0;
        }
        .ranking-position.top1 {
            background: #F5A623;
        }
        .ranking-position.top2 {
            background: #8A96A8;
        }
        .ranking-position.top3 {
            background: #C97B3D;
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: #5B6779;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 6px;
            padding: 8px 12px;
        }
        .drawer {
            display: none;
        }
        @media (max-width: 1023px) {
            .section-padding {
                padding: 64px 0;
            }
            .section-padding-alt {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .container {
                padding: 0 20px;
            }
            .filter-bar {
                padding: 12px;
                gap: 8px;
            }
            .filter-select,
            .filter-input {
                min-width: auto;
                flex: 1;
                font-size: 13px;
                padding: 9px 10px;
            }
        }
        @media (max-width: 767px) {
            .section-padding {
                padding: 48px 0;
            }
            .section-padding-alt {
                padding: 40px 0;
            }
            .section-title {
                font-size: 21px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 24px;
            }
            .container {
                padding: 0 16px;
            }
            .compact-header {
                padding: 20px 0 24px;
            }
            .stat-num {
                font-size: 28px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-select,
            .filter-input {
                width: 100%;
                min-width: auto;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px;
            }
            .faq-answer-inner {
                padding: 0 14px 16px;
                margin-left: 14px;
                padding-left: 12px;
                font-size: 14px;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .drawer {
                display: block;
            }
            .desktop-nav {
                display: none !important;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1E6FD9;
            --primary-hover: #1a5fbe;
            --primary-light: #E8F1FC;
            --secondary-bg: #F3F6FA;
            --border-color: #E5EAF1;
            --text-main: #17233B;
            --text-secondary: #5B6779;
            --text-light: #8A96A8;
            --bg-white: #FFFFFF;
            --bg-light-blue: #F7F9FC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-button: 8px;
            --shadow-card: 0 2px 8px rgba(23, 35, 59, 0.08);
            --shadow-card-hover: 0 8px 20px rgba(30, 111, 217, 0.16);
            --shadow-nav: 0 1px 4px rgba(23, 35, 59, 0.06);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.25s ease;
        }

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

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

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

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

        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            letter-spacing: 0.01em;
            position: relative;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(30, 111, 217, 0.35);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

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

        .btn-ghost {
            background: transparent;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 6px;
        }

        .btn-ghost:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .tag-alt {
            background: #EEF2F7;
            color: var(--text-secondary);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            background: #E8F5E9;
            color: #2E7D32;
        }

        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 16px;
        }

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

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

        .breadcrumb .sep {
            color: var(--text-light);
        }

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

        .filter-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 14px 16px;
            background: var(--bg-light-blue);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 24px;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            padding: 7px 16px;
            border-radius: 999px;
            background: #fff;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: pointer;
        }

        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .filter-chip.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .play-card {
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .play-card .play-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .play-card .play-icon svg {
            stroke: var(--primary);
        }

        .play-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

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

        .play-card .play-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }

        .price-badge {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 4px;
        }

        .tool-card {
            padding: 24px;
            border-radius: var(--radius-md);
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .tool-card .tool-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .tool-card .tool-icon svg {
            stroke: var(--primary);
        }

        .tool-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }

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

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: #fff;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 2px 12px rgba(30, 111, 217, 0.08);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            transition: var(--transition);
            text-align: left;
            width: 100%;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
            border-left: 3px solid var(--primary);
            margin-left: 20px;
        }

        .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .news-item .news-date {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 10px;
            border-radius: 4px;
            height: fit-content;
            white-space: nowrap;
        }

        .news-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

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

        .cta-box {
            background: var(--primary-light);
            border: 1px solid rgba(30, 111, 217, 0.15);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: center;
        }

        .cta-box h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .cta-box p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin: 0 auto;
        }

        .cta-input {
            flex: 1;
            height: 48px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0 16px;
            font-size: 15px;
            background: #fff;
            transition: var(--transition);
        }

        .cta-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.15);
        }

/* roulang page: category4 */
:root {
            --primary: #1E6FD9;
            --primary-hover: #1a5fbe;
            --primary-light: #E8F1FC;
            --secondary-bg: #F3F6FA;
            --border-color: #E5EAF1;
            --text-main: #17233B;
            --text-secondary: #5B6779;
            --text-light: #8A96A8;
            --bg-white: #FFFFFF;
            --bg-light-blue: #F7F9FC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-button: 8px;
            --shadow-card: 0 2px 8px rgba(23, 35, 59, 0.08);
            --shadow-card-hover: 0 8px 20px rgba(30, 111, 217, 0.16);
            --shadow-nav: 0 1px 4px rgba(23, 35, 59, 0.06);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 96px 0;
        }
        .section-padding-alt {
            padding: 88px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            letter-spacing: 0.01em;
            position: relative;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(30, 111, 217, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-ghost {
            background: transparent;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 6px;
        }
        .btn-ghost:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .tag-alt {
            background: #EEF2F7;
            color: var(--text-secondary);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            background: #E8F5E9;
            color: #2E7D32;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-link {
            position: relative;
            transition: var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
            border-radius: 2px;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link-active {
            color: var(--primary) !important;
            background: var(--primary-light);
            border-radius: 999px;
            padding: 6px 16px;
            font-weight: 600;
        }
        .breadcrumb-link {
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
        }
        .breadcrumb-link:hover {
            color: var(--primary);
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 999px;
            border: 1px solid var(--border-color);
            background: #fff;
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .filter-chip-active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .filter-chip-active:hover {
            background: var(--primary-hover);
            color: #fff;
        }
        .news-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .news-card-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .news-card-body {
            padding: 20px 20px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .date-badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 4px;
            padding: 2px 8px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: #fff;
            transition: var(--transition);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: #d0d9e3;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            background: #fff;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 20px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
            border-left: 3px solid var(--primary);
            margin-left: 20px;
            padding-left: 16px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }
        .faq-icon {
            transition: var(--transition);
            color: var(--text-light);
            flex-shrink: 0;
        }
        .subscribe-box {
            background: var(--bg-light-blue);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: center;
            text-align: center;
            border: 1px solid var(--border-color);
        }
        .subscribe-input {
            width: 100%;
            max-width: 420px;
            height: 48px;
            border-radius: var(--radius-button);
            border: 1px solid var(--border-color);
            padding: 0 16px;
            font-size: 15px;
            color: var(--text-main);
            background: #fff;
            transition: var(--transition);
        }
        .subscribe-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.2);
        }
        .timeline-item {
            position: relative;
            padding-left: 28px;
            padding-bottom: 32px;
            border-left: 2px solid var(--border-color);
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -7px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-link:hover {
            color: #fff;
        }
        @media (max-width: 1023px) {
            .section-padding {
                padding: 64px 0;
            }
            .section-padding-alt {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 20px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-padding-alt {
                padding: 40px 0;
            }
            .section-title {
                font-size: 21px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .news-card-image {
                height: 160px;
            }
            .subscribe-box {
                padding: 28px 20px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px;
            }
            .faq-answer {
                margin-left: 16px;
                padding: 0 16px 16px;
                font-size: 14px;
            }
            .timeline-item {
                padding-left: 22px;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 19px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 14px;
            }
            .filter-chip {
                font-size: 12px;
                padding: 6px 14px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1E6FD9;
            --primary-hover: #1a5fbe;
            --primary-light: #E8F1FC;
            --secondary-bg: #F3F6FA;
            --border-color: #E5EAF1;
            --text-main: #17233B;
            --text-secondary: #5B6779;
            --text-light: #8A96A8;
            --bg-white: #FFFFFF;
            --bg-light-blue: #F7F9FC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-button: 8px;
            --shadow-card: 0 2px 8px rgba(23, 35, 59, 0.08);
            --shadow-card-hover: 0 8px 20px rgba(30, 111, 217, 0.16);
            --shadow-nav: 0 1px 4px rgba(23, 35, 59, 0.06);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 64px 0;
        }
        .section-padding-alt {
            padding: 56px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            letter-spacing: 0.01em;
            position: relative;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(30, 111, 217, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-ghost {
            background: transparent;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 6px;
        }
        .btn-ghost:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .tag-alt {
            background: #EEF2F7;
            color: var(--text-secondary);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            background: #E8F5E9;
            color: #2E7D32;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        /* 分类页头部 */
        .cat-header {
            background: linear-gradient(180deg, #F7F9FC 0%, #FFFFFF 100%);
            border-bottom: 1px solid var(--border-color);
            padding: 40px 0 36px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 18px;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #C4CCD8;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .cat-header h1 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }
        .cat-header .cat-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.8;
        }
        /* 筛选工具条 */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 28px;
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            font-size: 14px;
            font-weight: 500;
            padding: 7px 18px;
            border-radius: 999px;
            background: #F3F6FA;
            color: var(--text-secondary);
            border: 1px solid transparent;
            transition: var(--transition);
            cursor: pointer;
        }
        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-chip.active {
            background: var(--primary);
            color: #fff;
        }
        /* 指南卡片 */
        .guide-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .guide-card .img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #F3F6FA;
            position: relative;
        }
        .guide-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .guide-card .card-body {
            padding: 20px 20px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .guide-card .card-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 12px;
            border-radius: 4px;
            display: inline-flex;
            align-self: flex-start;
            margin-bottom: 12px;
        }
        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .guide-card .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .guide-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 16px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        /* 步骤区域 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .step-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        /* 工具入口 */
        .tool-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .tool-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .tool-icon svg {
            stroke: var(--primary);
        }
        .tool-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .tool-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* FAQ */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-white);
            transition: var(--transition);
        }
        .faq-item.active {
            border-left: 4px solid var(--primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: #FAFBFD;
            transition: var(--transition);
            gap: 12px;
            user-select: none;
        }
        .faq-question:hover {
            background: #F3F6FA;
        }
        .faq-question .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform 0.25s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 20px;
        }
        /* 相关文章 */
        .article-list-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-list-item:last-child {
            border-bottom: none;
        }
        .article-list-item .article-date {
            font-size: 13px;
            color: var(--text-light);
            white-space: nowrap;
            min-width: 80px;
            padding-top: 2px;
        }
        .article-list-item .article-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
            transition: var(--transition);
        }
        .article-list-item:hover h4 {
            color: var(--primary);
        }
        .article-list-item .article-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* CTA */
        .cta-box {
            background: var(--bg-light-blue);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }
        .cta-box h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .cta-box p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-form input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 0 16px;
            font-size: 15px;
            background: var(--bg-white);
            transition: var(--transition);
        }
        .cta-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.15);
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-padding-alt {
                padding: 48px 0;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .section-title {
                font-size: 24px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-padding-alt {
                padding: 36px 0;
            }
            .section-title {
                font-size: 21px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .cat-header {
                padding: 24px 0 20px;
            }
            .cat-header h1 {
                font-size: 24px;
            }
            .cat-header .cat-desc {
                font-size: 14px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .filter-bar {
                gap: 6px;
            }
            .filter-chip {
                font-size: 13px;
                padding: 6px 14px;
            }
            .tool-card {
                padding: 18px;
                gap: 12px;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box h2 {
                font-size: 21px;
            }
            .cta-form input {
                min-width: 100%;
            }
            .article-list-item {
                flex-direction: column;
                gap: 6px;
            }
            .article-list-item .article-date {
                min-width: auto;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 19px;
            }
            .guide-card .card-body {
                padding: 16px;
            }
            .guide-card h3 {
                font-size: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1E6FD9;
            --primary-hover: #1a5fbe;
            --primary-light: #E8F1FC;
            --secondary-bg: #F3F6FA;
            --border-color: #E5EAF1;
            --text-main: #17233B;
            --text-secondary: #5B6779;
            --text-light: #8A96A8;
            --bg-white: #FFFFFF;
            --bg-light-blue: #F7F9FC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-button: 8px;
            --shadow-card: 0 2px 8px rgba(23, 35, 59, 0.08);
            --shadow-card-hover: 0 8px 20px rgba(30, 111, 217, 0.16);
            --shadow-nav: 0 1px 4px rgba(23, 35, 59, 0.06);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.25s ease;
        }

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

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            letter-spacing: 0.01em;
            position: relative;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(30, 111, 217, 0.35);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-ghost {
            background: transparent;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 6px;
        }
        .btn-ghost:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .tag-alt {
            background: #EEF2F7;
            color: var(--text-secondary);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            background: #E8F5E9;
            color: #2E7D32;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 760px;
            margin-bottom: 28px;
        }

        .nav-link {
            position: relative;
            padding: 8px 0;
            transition: color 0.2s ease;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.25s ease;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link-active {
            color: var(--primary) !important;
            background: var(--primary-light);
            border-radius: 6px;
            padding: 8px 14px;
        }
        .nav-link-active::after {
            display: none;
        }

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

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            transition: border-color 0.2s;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 4px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            transition: color 0.2s;
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            color: var(--text-light);
            transition: transform 0.3s ease, color 0.2s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.25s ease;
            padding: 0 4px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 4px 18px 4px;
        }
        .faq-item.open {
            border-left: 3px solid var(--primary);
            padding-left: 12px;
        }

        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 7px 16px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            background: #fff;
            color: var(--text-secondary);
            transition: all 0.2s;
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .filter-btn:focus-visible {
            outline: 2px solid rgba(30, 111, 217, 0.3);
            outline-offset: 2px;
        }

        .draw-info-card {
            border-left: 3px solid transparent;
        }
        .draw-info-card:hover {
            border-left-color: var(--primary);
        }
        .prize-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #F0F4FA;
            font-weight: 700;
            font-size: 14px;
            color: var(--text-main);
            flex-shrink: 0;
        }
        .prize-number-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .draw-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #E5EAF1;
            transition: background 0.2s;
        }
        .draw-dot.active {
            background: var(--primary);
        }

        @media (max-width: 1023px) {
            .container {
                padding: 0 20px;
            }
            .section-title {
                font-size: 22px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 20px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .draw-prize-number {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
        }

        .scrollbar-thin::-webkit-scrollbar {
            height: 4px;
            width: 4px;
        }
        .scrollbar-thin::-webkit-scrollbar-thumb {
            background: #D5DCE5;
            border-radius: 4px;
        }
        .scrollbar-thin::-webkit-scrollbar-track {
            background: transparent;
        }

/* roulang page: category6 */
:root {
      --primary: #1E6FD9;
      --primary-hover: #1a5fbe;
      --primary-light: #E8F1FC;
      --secondary-bg: #F3F6FA;
      --border-color: #E5EAF1;
      --text-main: #17233B;
      --text-secondary: #5B6779;
      --text-light: #8A96A8;
      --bg-white: #FFFFFF;
      --bg-light-blue: #F7F9FC;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-button: 8px;
      --shadow-card: 0 2px 8px rgba(23, 35, 59, 0.08);
      --shadow-card-hover: 0 8px 20px rgba(30, 111, 217, 0.16);
      --shadow-nav: 0 1px 4px rgba(23, 35, 59, 0.06);
      --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
      --transition: all 0.25s ease;
    }

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

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

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

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-sm);
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      outline: none;
    }

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

    .container {
      max-width: 1180px;
      margin: 0 auto;
      padding: 0 24px;
    }

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

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

    .section-label {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.08em;
      color: var(--primary);
      background: var(--primary-light);
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 16px;
    }

    .section-title {
      font-size: 28px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.8;
      max-width: 720px;
      margin-bottom: 32px;
    }

    .card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      overflow: hidden;
    }

    .card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-2px);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 600;
      padding: 12px 28px;
      border-radius: var(--radius-button);
      transition: var(--transition);
      white-space: nowrap;
      line-height: 1.4;
      letter-spacing: 0.01em;
      position: relative;
    }

    .btn:focus-visible {
      outline: 3px solid rgba(30, 111, 217, 0.35);
      outline-offset: 2px;
    }

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

    .btn-primary:hover {
      background: var(--primary-hover);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
    }

    .btn-outline {
      background: #fff;
      color: var(--primary);
      border: 1px solid var(--primary);
    }

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

    .btn-ghost {
      background: transparent;
      color: var(--primary);
      padding: 8px 16px;
      border-radius: 6px;
    }

    .btn-ghost:hover {
      background: var(--primary-light);
      color: var(--primary-hover);
    }

    .btn-sm {
      padding: 8px 18px;
      font-size: 14px;
    }

    .btn-lg {
      padding: 14px 34px;
      font-size: 16px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      font-size: 12px;
      font-weight: 500;
      padding: 4px 12px;
      border-radius: 999px;
      background: var(--primary-light);
      color: var(--primary);
      letter-spacing: 0.02em;
    }

    .tag-alt {
      background: #EEF2F7;
      color: var(--text-secondary);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      font-size: 12px;
      font-weight: 600;
      padding: 3px 10px;
      border-radius: 4px;
      background: #E8F5E9;
      color: #2E7D32;
    }

    .badge-blue {
      background: var(--primary-light);
      color: var(--primary);
    }

    .active-nav {
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 999px;
      padding: 4px 14px;
    }

    .faq-item {
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

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

    .faq-item.open .faq-question::after {
      transform: rotate(45deg);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      transition: var(--transition);
      position: relative;
    }

    .faq-question::after {
      content: '+';
      font-size: 20px;
      color: var(--primary);
      transition: transform 0.2s ease;
      flex-shrink: 0;
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    .faq-item.open {
      border-left: 3px solid var(--primary);
    }

    .search-input {
      transition: var(--transition);
    }

    .search-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.15);
    }

    .cta-input {
      width: 100%;
      max-width: 360px;
      padding: 14px 18px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 15px;
      transition: var(--transition);
      background: #fff;
    }

    .cta-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.15);
    }

    .cate-breadcrumb a,
    .cate-breadcrumb span {
      font-size: 14px;
      color: var(--text-secondary);
    }

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

    .filter-chip {
      padding: 6px 16px;
      border-radius: 999px;
      border: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-secondary);
      transition: var(--transition);
      white-space: nowrap;
    }

    .filter-chip:hover,
    .filter-chip.active {
      background: var(--primary-light);
      color: var(--primary);
      border-color: var(--primary-light);
    }

    .footer-link {
      color: rgba(255,255,255,0.6);
    }

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

    @media (max-width: 1023px) {
      .section-title {
        font-size: 24px;
      }
      .section-padding {
        padding: 48px 0;
      }
      .section-padding-alt {
        padding: 40px 0;
      }
    }

    @media (max-width: 767px) {
      .container {
        padding: 0 16px;
      }
      .section-title {
        font-size: 21px;
      }
      .section-padding {
        padding: 40px 0;
      }
      .section-padding-alt {
        padding: 32px 0;
      }
      .filter-chip {
        font-size: 12px;
        padding: 4px 12px;
      }
      .faq-question {
        padding: 16px;
        font-size: 15px;
      }
      .faq-answer {
        padding: 0 16px 16px;
      }
      .btn {
        padding: 10px 22px;
        font-size: 14px;
      }
    }