/* roulang page: index */
:root {
            --primary: #00C896;
            --primary-dark: #00AA80;
            --primary-light: rgba(0, 200, 150, .12);
            --accent: #7B68EE;
            --accent-light: rgba(123, 104, 238, .13);
            --dark-bg: #0B1220;
            --dark-2: #111A2C;
            --dark-3: #162237;
            --light-bg: #F4F6FA;
            --card-white: #FFFFFF;
            --text-dark: #1F2937;
            --text-secondary: #637083;
            --text-muted: #93A0B4;
            --text-on-dark: #E8ECF3;
            --text-on-dark-muted: #A2B2C7;
            --border-light: #E4E8F0;
            --border-dark: rgba(255, 255, 255, .12);
            --warning: #FF8A3D;
            --danger: #FF5C7A;
            --radius-lg: 16px;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 16px rgba(11, 18, 32, .05);
            --shadow-md: 0 12px 28px rgba(11, 18, 32, .1);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            background: var(--light-bg);
            color: var(--text-dark);
            -webkit-font-smoothing: antialiased;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            color: inherit;
            margin: 0 0 .5rem;
        }

        p {
            margin: 0 0 1rem;
        }

        a {
            color: var(--text-dark);
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

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

        .section-block {
            padding: 80px 0;
        }

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

        .section-title-wrap {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-tag i {
            font-size: 12px;
        }

        .section-title {
            font-size: 28px;
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-title::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 24px;
            margin-right: 12px;
            border-radius: 6px;
            background: var(--primary);
            vertical-align: -3px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 720px;
        }

        .btn {
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all .2s ease;
        }

        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #06251D;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 200, 150, .25);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, .5);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .08);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .badge {
            font-weight: 500;
            letter-spacing: 0;
            padding: 6px 12px;
            border-radius: 999px;
        }

        .badge-category {
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
        }

        .bg-dark-site {
            background: var(--dark-bg);
            color: var(--text-on-dark);
        }

        .text-muted-dark {
            color: var(--text-on-dark-muted);
        }

        /* ===== 顶部导航 ===== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(11, 18, 32, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid transparent;
            transition: background .3s ease, border-color .3s ease;
        }

        .main-header.is-scrolled {
            background: rgba(11, 18, 32, .98);
            border-bottom: 1px solid var(--border-dark);
        }

        .top-brand-line {
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 52px;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
        }

        .brand-logo .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .brand-logo .brand-text {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.2;
            color: #fff;
        }

        .brand-logo .brand-sub {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--text-on-dark-muted);
            margin-top: 2px;
        }

        .brand-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .hot-keywords {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-on-dark-muted);
        }

        .hot-keywords i {
            color: var(--primary);
        }

        .hot-keywords .keyword-link {
            color: var(--text-on-dark-muted);
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 999px;
            padding: 3px 10px;
            font-size: 12px;
            line-height: 1.5;
            display: inline-block;
            white-space: nowrap;
        }

        .hot-keywords .keyword-link:hover {
            color: var(--primary);
            border-color: rgba(0, 200, 150, .4);
        }

        .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            cursor: pointer;
            transition: all .2s ease;
        }

        .icon-btn:hover {
            background: rgba(255, 255, 255, .1);
            color: var(--primary);
        }

        .channel-nav-row {
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .channel-nav {
            display: flex;
            align-items: center;
            min-height: 42px;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .channel-nav li {
            margin: 0;
        }

        .channel-nav a {
            display: inline-flex;
            align-items: center;
            height: 42px;
            padding: 0 14px;
            color: var(--text-on-dark-muted);
            font-size: 15px;
            position: relative;
            border-bottom: 2px solid transparent;
            transition: all .2s ease;
        }

        .channel-nav a:hover {
            color: #fff;
        }

        .channel-nav a.active {
            color: #fff;
            border-bottom-color: var(--primary);
        }

        .channel-nav a .hot-dot {
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
            margin-left: 6px;
            vertical-align: 1px;
        }

        .mobile-toggle-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .offcanvas-search {
            background: var(--dark-2);
        }

        .offcanvas-search .offcanvas-body {
            padding: 24px;
        }

        .offcanvas-search .search-field {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-sm);
            color: #fff;
            padding: 10px 16px;
        }

        .offcanvas-search .search-field:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 200, 150, .15);
        }

        .mobile-menu {
            background: var(--dark-2) !important;
        }

        .mobile-menu .offcanvas-body {
            padding: 24px 0;
        }

        .mobile-menu .nav-group-title {
            color: var(--text-on-dark-muted);
            font-size: 13px;
            padding: 0 16px;
            margin-bottom: 14px;
            letter-spacing: .05em;
        }

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

        .mobile-menu-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 16px;
            color: var(--text-on-dark);
            font-size: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }

        .mobile-menu-list a:hover {
            color: var(--primary);
            background: rgba(255, 255, 255, .03);
        }

        .mobile-menu-list a i {
            color: var(--text-on-dark-muted);
            font-size: 13px;
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative;
            background-color: var(--dark-bg);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 96px 0 88px;
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 18, 32, .94) 0%, rgba(11, 18, 32, .85) 45%, rgba(11, 18, 32, .7) 100%);
        }

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

        .hero-title {
            font-size: 42px;
            line-height: 1.25;
            color: #fff;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .hero-title .text-gradient {
            background: linear-gradient(135deg, var(--primary) 20%, #79ffd6 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-on-dark-muted);
            margin-bottom: 32px;
            max-width: 620px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .hero-panel {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .14);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-lg);
            padding: 26px;
            color: #fff;
        }

        .hero-panel-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-panel-title i {
            color: var(--primary);
            font-size: 20px;
        }

        .hero-panel-desc {
            font-size: 13px;
            color: var(--text-on-dark-muted);
            margin-bottom: 20px;
        }

        .quick-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 20px;
        }

        .quick-grid-item {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius);
            padding: 16px 14px;
            color: #fff;
            transition: all .22s ease;
        }

        .quick-grid-item:hover {
            background: rgba(0, 200, 150, .12);
            border-color: rgba(0, 200, 150, .45);
            color: #fff;
            transform: translateY(-3px);
        }

        .quick-grid-item i {
            font-size: 22px;
            display: block;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .quick-grid-item .qg-title {
            font-size: 14px;
            font-weight: 600;
        }

        .quick-grid-item .qg-meta {
            font-size: 12px;
            color: var(--text-on-dark-muted);
            margin-top: 4px;
        }

        .hero-search {
            background: rgba(255, 255, 255, .03);
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: var(--radius-sm);
            padding: 4px;
            display: flex;
        }

        .hero-search input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 8px 12px;
            color: #fff;
            font-size: 14px;
            outline: none;
        }

        .hero-search input::placeholder {
            color: var(--text-on-dark-muted);
        }

        .hero-search button {
            background: var(--primary);
            border: none;
            color: #06251D;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 14px;
            transition: all .2s;
        }

        .hero-search button:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* ===== 指标看板 ===== */
        .metric-section {
            background: var(--dark-2);
            border-bottom: 1px solid var(--border-dark);
            padding: 44px 0;
            color: #fff;
        }

        .metric-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 20px 12px;
        }

        .metric-icon {
            width: 52px;
            height: 52px;
            flex-shrink: 0;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
        }

        .metric-icon.micon-green {
            background: rgba(0, 200, 150, .14);
            color: var(--primary);
        }

        .metric-icon.micon-purple {
            background: rgba(123, 104, 238, .16);
            color: var(--accent);
        }

        .metric-number {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.1;
            font-feature-settings: "tnum";
            display: block;
        }

        .metric-second {
            font-size: 18px;
            font-weight: 400;
            color: rgba(255, 255, 255, .55);
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-on-dark-muted);
            margin-top: 6px;
        }

        /* ===== 服务矩阵 Bento ===== */
        .matrix-section {
            background: var(--light-bg);
            padding: 80px 0;
        }

        .bento-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .bento-card {
            background: var(--card-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 34px;
            box-shadow: var(--shadow-sm);
            display: block;
            position: relative;
            overflow: hidden;
            transition: all .25s ease;
        }

        .bento-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 200, 150, .35);
            color: var(--text-dark);
        }

        .bento-card--lg {
            grid-column: span 7;
        }

        .bento-card--md {
            grid-column: span 5;
        }

        .bento-card--sm {
            grid-column: span 5;
        }

        .bento-card--sm2 {
            grid-column: span 7;
        }

        .bento-card--full {
            grid-column: span 12;
        }

        .bc-img {
            border-radius: var(--radius);
            overflow: hidden;
            height: 180px;
            background-position: center;
            background-size: cover;
            margin-bottom: 18px;
            position: relative;
        }

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

        .bento-card-cardinal {
            position: absolute;
            top: 22px;
            right: 24px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 42px;
            color: rgba(255, 255, 255, .4);
            line-height: 1;
        }

        .bc-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 16px;
        }

        .bc-icon.bc-purple {
            background: var(--accent-light);
            color: var(--accent);
        }

        .bento-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .bento-card .bc-desc {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .bento-meta-list {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }

        .bento-meta-list li {
            padding: 4px 0;
            color: var(--text-secondary);
            font-size: 14px;
        }

        .bento-meta-list li i {
            color: var(--primary);
            margin-right: 8px;
        }

        .bc-link {
            color: var(--primary-dark);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .bc-link i {
            transition: transform .2s ease;
        }

        .bento-card--dark {
            background: var(--dark-2);
            border-color: rgba(255, 255, 255, .1);
            color: var(--text-on-dark);
        }

        .bento-card--dark .bc-desc,
        .bento-card--dark .bento-meta-list li {
            color: var(--text-on-dark-muted);
        }

        /* ===== 对比区 ===== */
        .compare-section {
            background: #fff;
            padding: 80px 0;
        }

        .compare-col {
            border-radius: var(--radius-lg);
            padding: 36px;
            border: 1px solid var(--border-light);
            height: 100%;
            background: var(--light-bg);
        }

        .compare-col.compare-col--solution {
            background: linear-gradient(160deg, rgba(0, 200, 150, .09) 0%, #ffffff 50%);
            border-color: rgba(0, 200, 150, .35);
        }

        .compare-vs {
            display: inline-flex;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--dark-bg);
            color: var(--primary);
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 800;
            margin-bottom: 18px;
        }

        .compare-col--solution .compare-vs {
            background: var(--primary);
            color: #06251D;
        }

        .compare-col h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .compare-col .compare-sub {
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 24px;
        }

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

        .compare-list li {
            padding: 8px 0;
            display: flex;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 14px;
            align-items: flex-start;
        }

        .compare-list li .fa-xmark {
            color: var(--danger);
            margin-top: 4px;
        }

        .compare-list li .fa-check {
            color: var(--primary-dark);
            margin-top: 4px;
        }

        .progress-wrap {
            background: rgba(0, 0, 0, .04);
            border-radius: 999px;
            height: 8px;
            overflow: hidden;
            margin-bottom: 20px;
        }

        .progress-wrap .progress-bar-item {
            height: 100%;
            border-radius: 999px;
        }

        .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }

        .compare-conclusion {
            border-top: 1px solid var(--border-light);
            margin-top: 16px;
            padding-top: 20px;
        }

        .compare-col--solution .compare-conclusion {
            border-top-color: rgba(0, 200, 150, .2);
        }

        /* ===== 最新资讯 ===== */
        .news-section {
            background: var(--light-bg);
            padding: 80px 0;
        }

        .section-header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }

        .news-list-head {
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 12px;
            margin-bottom: 24px;
        }

        .news-list-head h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0;
        }

        .news-feature-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            background: #fff;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
            display: block;
            color: var(--text-dark);
            height: 100%;
        }

        .news-feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            color: var(--text-dark);
        }

        .news-feature-img {
            height: 220px;
            overflow: hidden;
            position: relative;
            background-color: var(--dark-3);
        }

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

        .news-feature-body {
            padding: 24px;
        }

        .news-feature-body .post-title {
            font-size: 20px;
            font-weight: 700;
            margin: 8px 0 12px;
        }

        .news-feature-body .post-desc {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .post-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .post-meta .badge {
            margin-right: 4px;
        }

        .news-list-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 16px;
            transition: all .2s ease;
            display: flex;
            gap: 14px;
            align-items: center;
        }

        .news-list-card:hover {
            border-color: rgba(0, 200, 150, .35);
            transform: translateY(-2px);
        }

        .news-list-card-img {
            width: 84px;
            height: 66px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--dark-2);
        }

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

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

        .news-list-card .nlc-title {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 4px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .news-row-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 20px;
            transition: all .2s ease;
            height: 100%;
        }

        .news-row-card:hover {
            border-color: rgba(0, 200, 150, .3);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .news-row-card .post-title {
            font-size: 15px;
            font-weight: 600;
            margin: 8px 0;
        }

        .news-row-card .post-desc {
            font-size: 13px;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .empty-news-state {
            text-align: center;
            padding: 40px 24px;
            border: 1px dashed var(--border-light);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            background: #fff;
        }

        .empty-news-state i {
            font-size: 36px;
            display: block;
            margin-bottom: 14px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            padding: 80px 0;
        }

        .faq-card-gutter {
            margin-top: 20px;
        }

        .faq-extra-box {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 30px;
            color: #fff;
            margin-top: 20px;
        }

        .faq-extra-box h4 {
            color: #fff;
            font-size: 18px;
        }

        .faq-extra-box p {
            color: var(--text-on-dark-muted);
            font-size: 14px;
        }

        .faq-extra-box .btn {
            background: var(--primary);
            border: none;
            color: #06251D;
            font-weight: 600;
        }

        .accordion-item {
            border: 1px solid var(--border-light) !important;
            border-radius: var(--radius) !important;
            background: #fff;
            margin-bottom: 14px;
            overflow: hidden;
        }

        .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            padding: 18px 22px;
            background: #fff;
            border: none;
            border-left: 3px solid transparent;
            transition: all .2s ease;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(0, 200, 150, .06);
            color: var(--primary-dark);
            box-shadow: none;
            border-left: 3px solid var(--primary);
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(0, 200, 150, .3);
        }

        .accordion-button::after {
            background-size: 16px;
            opacity: .7;
        }

        .accordion-body {
            padding: 16px 22px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.9;
            border-left: 3px solid transparent;
        }

        .accordion-item:first-of-type .accordion-button {
            border-top-left-radius: var(--radius);
            border-top-right-radius: var(--radius);
        }

        /* ===== CTA 表单 ===== */
        .cta-section {
            background: var(--dark-bg);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            opacity: .3;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-lead {
            color: var(--text-on-dark-muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .cta-points {
            list-style: none;
            margin: 24px 0 0;
            padding: 0;
        }

        .cta-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-on-dark);
            padding: 8px 0;
        }

        .cta-points li i {
            color: var(--primary);
            margin-top: 4px;
        }

        .cta-form-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 28px;
        }

        .cta-form-card .form-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .cta-form-card .form-control {
            border-radius: var(--radius-sm);
            border-color: var(--border-light);
            padding: 10px 14px;
            font-size: 14px;
        }

        .cta-form-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 200, 150, .15);
        }

        .cta-form-card .form-select {
            border-radius: var(--radius-sm);
            border-color: var(--border-light);
            font-size: 14px;
        }

        .cta-form-card .btn-submit {
            background: var(--primary);
            border: none;
            width: 100%;
            padding: 12px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            color: #06251D;
            font-size: 15px;
            transition: all .2s ease;
        }

        .cta-form-card .btn-submit:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 200, 150, .25);
        }

        .cta-form-card .form-text {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== 页脚 ===== */
        .main-footer {
            background: #070C16;
            color: var(--text-on-dark-muted);
            font-size: 14px;
        }

        .footer-top-banner {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            margin: 48px 0 20px;
            padding: 28px 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-top-banner h3 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 4px;
        }

        .footer-top-banner p {
            margin: 0;
            font-size: 13px;
        }

        .footer-top-banner .btn-footer-cta {
            background: var(--primary);
            border: none;
            color: #06251D;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 10px 22px;
        }

        .footer-top-banner .btn-footer-cta:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .footer-links {
            padding: 48px 0 36px;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }

        .footer-brand-name {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .footer-brand-name i {
            color: var(--primary);
            margin-right: 6px;
        }

        .footer-brand-desc {
            color: var(--text-on-dark-muted);
            font-size: 13px;
            max-width: 320px;
            line-height: 1.8;
        }

        .footer-endpoint {
            font-size: 13px;
            color: rgba(255, 255, 255, .35);
            margin-top: 14px;
            word-break: break-all;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

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

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

        .footer-menu-list a {
            color: var(--text-on-dark-muted);
            font-size: 14px;
            transition: all .2s ease;
        }

        .footer-menu-list a:hover {
            color: var(--primary);
            padding-left: 3px;
        }

        .footer-bottom {
            padding: 20px 0;
            font-size: 13px;
        }

        .footer-bottom .compliance-text {
            color: rgba(255, 255, 255, .28);
            margin-top: 6px;
        }

        /* ===== 内页通用小部件 ===== */
        .channel-chip {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .09);
            border-radius: 999px;
            color: var(--text-on-dark-muted);
            display: inline-block;
            font-size: 13px;
            padding: 6px 14px;
            transition: all .2s ease;
        }

        .channel-chip:hover {
            border-color: rgba(0, 200, 150, .4);
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .hero-title {
                font-size: 38px;
            }
            .hot-keywords {
                display: none;
            }
            .bento-card {
                padding: 26px;
            }
        }

        @media (max-width: 991.98px) {
            .section-block {
                padding: 64px 0;
            }
            .matrix-section,
            .news-section,
            .faq-section,
            .compare-section {
                padding: 64px 0;
            }
            .hero-title {
                font-size: 34px;
            }
            .hero-section {
                padding: 64px 0;
            }
            .quick-grid {
                grid-template-columns: 1fr 1fr;
            }
            .bento-card--lg,
            .bento-card--md,
            .bento-card--sm,
            .bento-card--sm2 {
                grid-column: span 6;
            }
            .cta-title {
                font-size: 26px;
            }
            .channel-nav-row {
                display: none;
            }
            .desktop-channel-nav {
                display: none;
            }
        }

        @media (min-width: 992px) {
            .mobile-trigger {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-section {
                padding: 48px 0;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-panel {
                padding: 20px;
                margin-top: 24px;
            }
            .quick-grid {
                gap: 8px;
            }
            .quick-grid-item {
                padding: 12px;
            }
            .brand-row {
                min-height: 50px;
            }
            .brand-tools {
                gap: 6px;
            }
            .brand-logo .brand-text {
                font-size: 15px;
            }
            .bento-grid {
                gap: 16px;
            }
            .bento-card--lg,
            .bento-card--md,
            .bento-card--sm,
            .bento-card--sm2 {
                grid-column: span 12;
            }
            .metric-item {
                padding: 14px;
            }
            .compare-col {
                padding: 26px 22px;
            }
            .compare-col + .compare-col {
                margin-top: 16px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-title::before {
                width: 18px;
                height: 18px;
                margin-right: 8px;
            }
            .footer-links {
                padding: 30px 0;
            }
            .section-notice {
                font-size: 13px;
            }
            .channel-nav a {
                font-size: 14px;
                padding: 0 10px;
            }
        }

        @media (max-width: 575.98px) {
            .brand-logo .brand-sub {
                display: none;
            }
            .icon-btn.search-trigger {
                display: none;
            }
            .hero-btns {
                gap: 8px;
                width: 100%;
            }
            .hero-btns .btn {
                flex: 1;
                text-align: center;
            }
            .quick-grid {
                grid-template-columns: 1fr;
            }
            .hero-search {
                flex-direction: row;
            }
            .news-list-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-list-card-img {
                width: 100%;
                height: 100px;
            }
            .news-feature-img {
                height: 170px;
            }
            .section-title-wrap {
                margin-bottom: 28px;
            }
            .footer-bottom {
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #00C896;
  --primary-dark: #00B384;
  --primary-soft: rgba(0, 200, 150, .12);
  --accent: #7B68EE;
  --accent-soft: rgba(123, 104, 238, .12);
  --dark: #0B1220;
  --dark-2: #101A2E;
  --dark-3: #0E1527;
  --body-bg: #F4F6FA;
  --card-bg: #FFFFFF;
  --line: #E4E8F0;
  --line-dark: rgba(255, 255, 255, .12);
  --text-main: #1F2937;
  --text-muted: #637083;
  --text-weak: #93A0B4;
  --text-dark: #E8ECF3;
  --text-dark-muted: #A2B2C7;
  --radius-xl: 16px;
  --radius-lg: 12px;
  --radius-md: 9px;
  --shadow: 0 4px 16px rgba(11, 18, 32, .05);
  --shadow-hover: 0 14px 30px rgba(11, 18, 32, .1);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--body-bg);
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  color: inherit;
  line-height: 1.35;
}

.container {
  max-width: 1220px;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Header ===== */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(11, 18, 32, .96);
  color: #fff;
  transition: box-shadow .3s ease;
}

.main-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(0, 0, 0, .24);
}

.top-brand-line {
  background: linear-gradient(180deg, rgba(0, 0, 0, .18), rgba(0, 0, 0, 0));
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.brand-row {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}

.logo-mark {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -.02em;
  box-shadow: 0 6px 16px rgba(0, 200, 150, .25);
}

.brand-text {
  display: flex;
  flex-direction: column;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
}

.brand-text .brand-sub {
  color: rgba(255, 255, 255, .52);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .05em;
  margin-top: 4px;
  white-space: nowrap;
}

.brand-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hot-keywords {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: rgba(255, 255, 255, .46);
  padding-right: 8px;
  border-right: 1px solid rgba(255, 255, 255, .12);
}

.hot-keywords i {
  color: var(--primary);
}

.hot-keywords .keyword-link {
  color: rgba(255, 255, 255, .66);
  padding: 3px 7px;
  border-radius: 6px;
  transition: background .2s ease, color .2s ease;
}

.hot-keywords .keyword-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .07);
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .03);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color .2s ease, background .2s ease;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, .09);
  border-color: rgba(255, 255, 255, .2);
}

.channel-nav-row {
  background: rgba(11, 18, 32, .98);
  border-top: 1px solid transparent;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.channel-nav {
  display: flex;
  gap: 4px;
  min-height: 44px;
  align-items: center;
  overflow-x: auto;
  scrollbar-width: none;
}

.channel-nav::-webkit-scrollbar {
  display: none;
}

.channel-nav li a {
  display: block;
  padding: 10px 15px;
  font-size: 15px;
  color: rgba(255, 255, 255, .66);
  border-bottom: 3px solid transparent;
  border-radius: 5px 5px 0 0;
  white-space: nowrap;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.channel-nav li a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .04);
}

.channel-nav li a.active,
.channel-nav li a.active:hover {
  color: var(--primary);
  font-weight: 600;
  border-bottom-color: var(--primary);
  background: rgba(0, 200, 150, .06);
}

.mobile-trigger {
  display: none;
}

/* ===== Offcanvas ===== */
.site-offcanvas {
  background: var(--dark) !important;
  color: #fff;
  width: 330px !important;
}

.site-offcanvas .offcanvas-header h5 {
  color: #fff;
}

.site-offcanvas .btn-close {
  filter: invert(1) brightness(1.5);
  opacity: .75;
}

.mobile-menu-link {
  display: block;
  padding: 13px 16px;
  border-radius: 10px;
  color: rgba(255, 255, 255, .72);
  font-size: 16px;
  transition: background .2s ease, color .2s ease, padding-left .2s ease;
}

.mobile-menu-link i {
  width: 24px;
  color: var(--primary);
  margin-right: 5px;
}

.mobile-menu-link:hover,
.mobile-menu-link.active {
  color: #fff;
  background: rgba(255, 255, 255, .05);
  padding-left: 20px;
}

.search-offcanvas-input {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .12);
  color: #fff;
  border-radius: 10px;
}

.search-offcanvas-input::placeholder {
  color: rgba(255, 255, 255, .36);
}

.search-offcanvas-input:focus {
  border-color: var(--primary);
  box-shadow: none;
  color: #fff;
  background: rgba(255, 255, 255, .08);
}

/* ===== Category Hero ===== */
.category-hero {
  position: relative;
  min-height: 260px;
  background: var(--dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  display: flex;
  align-items: center;
  padding: 58px 0 46px;
  color: #fff;
  isolation: isolate;
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(100deg, rgba(11, 18, 32, .96) 20%, rgba(11, 18, 32, .82) 52%, rgba(11, 18, 32, .48) 100%);
}

.category-hero .hero-content {
  max-width: 820px;
}

.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, .48);
  margin-bottom: 15px;
  padding: 7px 12px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 30px;
  display: inline-flex;
}

.hero-breadcrumb a {
  color: rgba(255, 255, 255, .65);
}

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

.hero-breadcrumb .separator {
  opacity: .5;
}

.hero-breadcrumb .current {
  color: var(--primary);
}

.category-hero h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
  margin-bottom: 14px;
}

.category-hero h1 .hero-highlight {
  color: var(--primary);
}

.category-hero .hero-desc {
  color: rgba(255, 255, 255, .68);
  font-size: 16px;
  max-width: 720px;
  line-height: 1.8;
  margin-bottom: 10px;
}

@media (max-width: 768px) {
  .category-hero {
    min-height: 220px;
    padding: 40px 0 32px;
  }
  .category-hero h1 {
    font-size: 28px;
  }
  .category-hero .hero-desc {
    font-size: 15px;
  }
}

/* ===== General Sections ===== */
.section-block {
  padding: 86px 0;
}

.section-block.tight-section {
  padding: 60px 0;
}

.section-block.bg-light-section {
  background: #fff;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-kicker i {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.section-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -.015em;
  color: var(--text-main);
  margin-bottom: 16px;
}

.section-lead {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 40px;
  line-height: 1.8;
}

/* ===== Focus Tags ===== */
.section-focus-tags {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  margin-top: -1px;
}

.focus-tags-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.focus-tags-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
  font-weight: 600;
  font-size: 14px;
  margin-right: 4px;
}

.focus-tags-label i {
  color: var(--primary);
}

.topic-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 30px;
  background: var(--body-bg);
  border: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 13px;
  cursor: default;
  transition: border-color .2s ease, background .2s ease, color .2s ease;
}

.topic-chip i {
  font-size: 11px;
  color: var(--accent);
}

.topic-chip.is-hot {
  border-color: rgba(0, 200, 150, .25);
  background: var(--primary-soft);
  color: #08786b;
}

.topic-chip:hover {
  border-color: rgba(0, 200, 150, .5);
  background: var(--primary-soft);
}

/* ===== Info Topic Cards ===== */
.info-cards-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.info-topic-card {
  grid-column: span 3;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.info-topic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0, 200, 150, .4);
}

.info-topic-card .card-top-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  background: var(--primary-soft);
  color: var(--primary);
  margin-bottom: 20px;
}

.info-topic-card:nth-child(2) .card-top-icon {
  background: var(--accent-soft);
  color: var(--accent);
}

.info-topic-card:nth-child(3) .card-top-icon {
  background: rgba(255, 138, 61, .12);
  color: #FF8A3D;
}

.info-topic-card:nth-child(4) .card-top-icon {
  background: rgba(255, 92, 122, .1);
  color: #FF5C7A;
}

.info-topic-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 9px;
  color: var(--text-main);
  line-height: 1.4;
}

.info-topic-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 0;
}

.info-topic-card .topic-meta {
  margin-top: 15px;
  font-size: 12px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 6px;
}

.info-topic-card .topic-meta i {
  color: var(--primary);
}

@media (max-width: 991px) {
  .info-topic-card {
    grid-column: span 6;
  }
}

@media (max-width: 575px) {
  .info-topic-card {
    grid-column: span 12;
  }
}

/* ===== Dark Feature Block ===== */
.dark-feature {
  background: var(--dark) url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  position: relative;
  isolation: isolate;
}

.dark-feature::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(120deg, rgba(11, 18, 32, .96) 30%, rgba(16, 26, 46, .88) 70%, rgba(11, 18, 32, .62) 100%);
}

.dark-feature .section-title {
  color: #fff;
}

.dark-feature .section-lead {
  color: var(--text-dark-muted);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 12px;
}

.scene-card {
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 16px;
  padding: 28px 24px;
  color: #fff;
  transition: border-color .25s ease, background .25s ease, transform .25s ease;
}

.scene-card:hover {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(0, 200, 150, .35);
  transform: translateY(-3px);
}

.scene-card .scene-num {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .08em;
  margin-bottom: 12px;
}

.scene-card h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 8px;
}

.scene-card p {
  color: var(--text-dark-muted);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

@media (max-width: 991px) {
  .scene-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .section-block {
    padding: 60px 0;
  }
  .scene-grid {
    grid-template-columns: 1fr;
  }
  .scene-card {
    padding: 22px 20px;
  }
  .section-title {
    font-size: 26px;
  }
}

/* ===== Reading Guide / Feature Split ===== */
.feature-split-block {
  background: #fff;
}

.feature-img-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.feature-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}

.feature-img-wrap::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 40%;
  background: linear-gradient(180deg, transparent, rgba(11, 18, 32, .26));
}

.feature-img-badge {
  position: absolute;
  z-index: 2;
  left: 18px;
  bottom: 18px;
  right: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 12px 16px;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
}

.feature-img-badge i {
  color: var(--primary);
  font-size: 18px;
}

.check-list-block {
  margin-top: 10px;
}

.check-list-block li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--body-bg);
  border-radius: 12px;
  padding: 17px 18px;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  transition: border-color .2s ease, background .2s ease;
}

.check-list-block li:hover {
  border-color: rgba(0, 200, 150, .35);
  background: #fff;
}

.check-list-block li .bullet-icon {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
}

.check-list-block li b {
  display: block;
  color: var(--text-main);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
}

.check-list-block li span {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== Step Reading Flow ===== */
.step-flow-section {
  background: var(--body-bg);
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-item {
  position: relative;
  background: #fff;
  padding: 28px 22px 22px;
  border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.step-item:hover {
  transform: translateY(-4px);
  border-color: rgba(123, 104, 238, .35);
  box-shadow: var(--shadow-hover);
}

.step-item .step-circle {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 800;
  font-size: 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.step-item p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.step-item .step-arrow {
  position: absolute;
  right: -14px;
  top: 44px;
  color: var(--accent-soft);
  font-size: 16px;
  z-index: 2;
}

.step-item:last-child .step-arrow {
  display: none;
}

@media (max-width: 991px) {
  .step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-item .step-arrow {
    display: none;
  }
}

@media (max-width: 575px) {
  .step-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== FAQ ===== */
.faq-section {
  background: #fff;
}

.faq-section .section-lead {
  margin-bottom: 34px;
}

.faq-side-help {
  background: linear-gradient(135deg, var(--dark-2), var(--dark));
  color: #fff;
  padding: 28px;
  border-radius: 18px;
  position: relative;
  overflow: hidden;
}

.faq-side-help::after {
  content: "";
  position: absolute;
  right: -35px;
  top: -35px;
  width: 110px;
  height: 110px;
  border-radius: 30px;
  background: rgba(0, 200, 150, .12);
  transform: rotate(45deg);
}

.faq-side-help i {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 18px;
}

.faq-side-help h4 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.faq-side-help p {
  color: var(--text-dark-muted);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.faq-side-help a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  border: 1px solid rgba(0, 200, 150, .3);
  padding: 8px 16px;
  border-radius: 20px;
  transition: background .2s ease, color .2s ease;
}

.faq-side-help a:hover {
  background: var(--primary);
  color: var(--dark);
  border-color: var(--primary);
}

.faq-accordion .accordion-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 12px;
}

.faq-accordion .accordion-button {
  background: #fff;
  color: var(--text-main);
  font-weight: 700;
  font-size: 16px;
  padding: 20px 22px;
  border: 0;
  box-shadow: none;
  border-radius: 0 !important;
  transition: color .2s ease;
  position: relative;
}

.faq-accordion .accordion-button::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  border-radius: 0 4px 4px 0;
  transition: background .2s ease;
}

.faq-accordion .accordion-button:hover::before,
.faq-accordion .accordion-button[aria-expanded="true"]::before {
  background: var(--primary);
}

.faq-accordion .accordion-button::after {
  background-image: none;
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 13px;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transform: rotate(0deg);
  transition: transform .25s ease;
  width: 24px;
  height: 24px;
}

.faq-accordion .accordion-button:not(.collapsed) {
  background: rgba(0, 200, 150, .055);
  color: var(--text-main);
  box-shadow: none;
}

.faq-accordion .accordion-button:not(.collapsed)::after {
  transform: rotate(180deg);
}

.faq-accordion .accordion-body {
  padding: 0 22px 20px 26px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.85;
  background: #fff;
}

/* ===== CTA Band ===== */
.cta-band {
  background: var(--dark) url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  padding: 78px 0;
  position: relative;
  isolation: isolate;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(115deg, rgba(11, 18, 32, .98), rgba(11, 18, 32, .86));
}

.cta-band .cta-title {
  color: #fff;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -.01em;
  margin-bottom: 12px;
}

.cta-band .cta-desc {
  color: var(--text-dark-muted);
  font-size: 15px;
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 28px;
}

.cta-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  padding: 10px 22px;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
}

.btn-primary-cta {
  background: var(--primary);
  color: #05101c;
  border: 1px solid var(--primary);
}

.btn-primary-cta:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  border-color: var(--primary-dark);
  box-shadow: 0 10px 22px rgba(0, 200, 150, .18);
}

.btn-outline-light-cta {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .25);
  color: #fff;
}

.btn-outline-light-cta:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(0, 200, 150, .08);
  transform: translateY(-2px);
}

.cta-stat-card {
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 18px;
  padding: 30px 26px;
  backdrop-filter: blur(8px);
}

.cta-stat-card .big-num {
  color: var(--primary);
  font-size: 42px;
  font-weight: 800;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  margin-bottom: 8px;
}

.cta-stat-card .num-label {
  color: var(--text-dark-muted);
  font-size: 14px;
}

.cta-stat-card ul {
  margin-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-top: 20px;
}

.cta-stat-card ul li {
  color: var(--text-dark-muted);
  font-size: 14px;
  margin-bottom: 8px;
  display: flex;
  gap: 8px;
}

.cta-stat-card ul li i {
  color: var(--primary);
  font-size: 12px;
  margin-top: 6px;
}

/* ===== Footer ===== */
.main-footer {
  background: #080E18;
  color: rgba(255, 255, 255, .68);
  padding-top: 74px;
  font-size: 14px;
  line-height: 1.8;
}

.footer-top-banner {
  background: linear-gradient(135deg, rgba(0, 200, 150, .12), rgba(123, 104, 238, .1));
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 16px;
  padding: 26px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}

.footer-top-banner h3 {
  color: #fff;
  font-size: 19px;
  margin-bottom: 5px;
}

.footer-top-banner p {
  color: var(--text-dark-muted);
  font-size: 13px;
  margin: 0;
}

.btn-footer-cta {
  background: var(--primary);
  color: #080E18;
  white-space: nowrap;
  border-color: var(--primary);
  border-radius: 10px;
}

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

.footer-links {
  padding-bottom: 40px;
}

.footer-brand-name {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.footer-brand-name i {
  color: var(--primary);
}

.footer-brand-desc {
  color: rgba(255, 255, 255, .42);
  font-size: 13px;
  max-width: 300px;
  margin-bottom: 16px;
}

.footer-endpoint {
  color: rgba(255, 255, 255, .24);
  font-size: 13px;
}

.footer-col-title {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}

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

.footer-menu-list li a {
  color: rgba(255, 255, 255, .54);
  font-size: 14px;
  transition: color .2s ease, padding-left .2s ease;
}

.footer-menu-list li a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .07);
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}

.compliance-text {
  color: rgba(255, 255, 255, .22);
  font-size: 12px;
  margin-top: 2px;
}

.compliance-text a:hover {
  color: rgba(255, 255, 255, .5);
  text-decoration: none;
}

.channel-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, .6) !important;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 30px;
  padding: 6px 14px;
  font-size: 13px;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.channel-chip:hover {
  color: #fff !important;
  border-color: var(--primary);
  background: rgba(0, 200, 150, .08);
}

@media (max-width: 991px) {
  .footer-top-banner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-top-banner p {
    margin-bottom: 6px;
  }
}

/* ===== Responsive ===== */
@media (max-width: 991px) {
  .hot-keywords {
    display: none;
  }
  .mobile-trigger {
    display: flex;
  }
  .desktop-channel-nav {
    display: none;
  }
  .brand-row {
    min-height: 54px;
  }
  .brand-text {
    font-size: 17px;
  }
}

@media (max-width: 575px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .brand-logo .brand-sub {
    display: none;
  }
  .logo-mark {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
    font-size: 15px;
  }
  .brand-text {
    font-size: 17px;
  }
  .section-block {
    padding: 52px 0;
  }
  .section-lead {
    margin-bottom: 28px;
  }
  .category-hero h1 {
    font-size: 25px;
  }
  .cta-title {
    font-size: 24px;
  }
  .info-topic-card {
    padding: 22px 18px;
  }
}

@media (max-width: 575px) {
  .footer-top-banner h3 {
    font-size: 17px;
  }
  .footer-bottom .text-md-end {
    text-align: left !important;
    margin-top: 12px;
  }
}

/* roulang page: article */
:root {
            --primary: #00C896;
            --primary-light: #10E0B0;
            --primary-dark: #009B74;
            --secondary: #7B68EE;
            --ink: #0B1220;
            --ink-deep: #080E1A;
            --surface: #F4F6FA;
            --card: #FFFFFF;
            --text-main: #1F2937;
            --text-sub: #637083;
            --text-weak: #93A0B4;
            --text-dark: #E8ECF3;
            --text-dark-muted: #A2B2C7;
            --border: #E4E8F0;
            --border-dark: rgba(255, 255, 255, .12);
            --radius-lg: 16px;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 16px rgba(11, 18, 32, .05);
            --shadow-lg: 0 12px 28px rgba(11, 18, 32, .1);
        }

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--surface);
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== Header ===== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: linear-gradient(180deg, #0D1526 0%, #0B1220 100%);
            box-shadow: 0 6px 20px rgba(0, 0, 0, .18);
        }

        .main-header.header-scrolled {
            box-shadow: 0 8px 28px rgba(0, 0, 0, .3);
        }

        .top-brand-line {
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 58px;
            gap: 16px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            min-width: 0;
            color: #fff;
        }
        .brand-logo:hover {
            color: var(--primary-light);
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
            letter-spacing: -.02em;
            box-shadow: 0 6px 18px rgba(0, 200, 150, .22);
        }

        .brand-text {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.15;
            letter-spacing: .01em;
            white-space: nowrap;
        }

        .brand-sub {
            display: block;
            font-size: .68rem;
            font-weight: 400;
            color: rgba(255, 255, 255, .52);
            letter-spacing: .02em;
            margin-top: 3px;
        }

        .brand-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hot-keywords {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .6);
            font-size: 13px;
            padding: 5px 12px;
            border: 1px solid var(--border-dark);
            border-radius: 30px;
            background: rgba(255, 255, 255, .04);
        }

        .hot-keywords i {
            color: var(--primary);
        }

        .keyword-link {
            color: rgba(255, 255, 255, .72);
            padding: 2px 4px;
            white-space: nowrap;
        }
        .keyword-link:hover {
            color: var(--primary-light);
        }

        .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            border: 1px solid var(--border-dark);
            background: rgba(255, 255, 255, .06);
            color: rgba(255, 255, 255, .85);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: .9rem;
            transition: all .2s ease;
        }
        .icon-btn:hover {
            background: rgba(255, 255, 255, .14);
            color: #fff;
            border-color: rgba(255, 255, 255, .22);
            transform: translateY(-1px);
        }

        .mobile-trigger {
            display: none;
        }

        .desktop-channel-nav {
            background: rgba(0, 0, 0, .18);
        }

        .channel-nav {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            min-height: 42px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-nav a {
            display: inline-block;
            padding: 9px 4px;
            margin-right: 28px;
            font-size: 15px;
            color: rgba(255, 255, 255, .7);
            font-weight: 400;
            position: relative;
            line-height: 1.2;
            white-space: nowrap;
        }
        .channel-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            opacity: 0;
            transform: scaleX(.4);
            transition: all .25s ease;
        }
        .channel-nav a:hover {
            color: #fff;
        }
        .channel-nav a.active {
            color: var(--primary-light);
            font-weight: 500;
        }
        .channel-nav a.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        /* ===== Offcanvas ===== */
        .search-shell {
            --bs-offcanvas-bg: #0D1526;
            --bs-offcanvas-color: #fff;
            background: #0D1526;
            min-height: 200px;
        }
        .search-shell .offcanvas-header {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-dark);
        }
        .search-shell .offcanvas-title {
            color: #fff;
            font-weight: 600;
        }
        .search-shell .offcanvas-body {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 32px 24px 40px;
        }
        .site-search-form {
            width: 100%;
            max-width: 660px;
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 40px;
            padding: 6px 6px 6px 20px;
            transition: border-color .2s ease;
        }
        .site-search-form:focus-within {
            border-color: var(--primary);
        }
        .site-search-form i {
            color: rgba(255, 255, 255, .5);
            margin-right: 10px;
        }
        .site-search-form input {
            flex: 1;
            background: transparent;
            border: 0;
            outline: 0;
            color: #fff;
            font-size: 15px;
        }
        .site-search-form input::placeholder {
            color: rgba(255, 255, 255, .38);
        }
        .site-search-form button {
            border: 0;
            background: var(--primary);
            color: #0B2A22;
            padding: 9px 22px;
            border-radius: 30px;
            font-weight: 600;
            transition: background .2s ease;
        }
        .site-search-form button:hover {
            background: var(--primary-light);
        }

        .mobile-menu-shell {
            --bs-offcanvas-width: 330px;
            --bs-offcanvas-bg: #0D1526;
            color: #fff;
        }
        .mobile-menu-shell .offcanvas-header {
            border-bottom: 1px solid var(--border-dark);
            padding: 18px 20px;
        }
        .mobile-menu-shell .offcanvas-btn-close {
            background: transparent;
            border: 0;
            color: #fff;
            font-size: 20px;
        }
        .mobile-menu-shell .offcanvas-body {
            padding: 24px 20px;
        }
        .mobile-menu-shell .offcanvas-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .42);
            margin-bottom: 12px;
            letter-spacing: .05em;
        }
        .mobile-menu-list {
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }
        .mobile-menu-list li + li {
            border-top: 1px solid rgba(255, 255, 255, .06);
        }
        .mobile-menu-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 13px 4px;
            color: rgba(255, 255, 255, .82);
            font-size: 16px;
            border-radius: 8px;
        }
        .mobile-menu-list a:hover {
            color: var(--primary-light);
        }
        .mobile-menu-list a i {
            color: rgba(255, 255, 255, .35);
            font-size: 12px;
        }

        /* ===== Page Subheader ===== */
        .article-subheader {
            position: relative;
            background: linear-gradient(76deg, rgba(8, 14, 26, .97) 0%, rgba(11, 18, 32, .9) 46%, rgba(11, 18, 32, .72) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 52px 0 90px;
            color: #fff;
        }

        .article-subheader::after {
            content: "";
            position: absolute;
            right: -90px;
            bottom: -120px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 200, 150, .18) 0%, rgba(0, 200, 150, 0) 68%);
            pointer-events: none;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .62);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary-light);
        }
        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, .3);
            margin: 0 2px;
        }
        .breadcrumb-current {
            color: rgba(255, 255, 255, .62);
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-subheader .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, .16);
            background: rgba(255, 255, 255, .06);
            border-radius: 30px;
            padding: 5px 14px;
            color: rgba(255, 255, 255, .72);
            font-size: 13px;
            margin-bottom: 14px;
            backdrop-filter: blur(6px);
        }
        .article-subheader .eyebrow i {
            color: var(--primary);
        }

        .article-subheader h1 {
            font-size: clamp(1.7rem, 3.2vw, 2.4rem);
            max-width: 900px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 10px;
            color: #fff;
            letter-spacing: 0;
        }

        .article-subheader .subheader-excerpt {
            max-width: 820px;
            font-size: 15px;
            color: rgba(255, 255, 255, .68);
            line-height: 1.9;
            margin-top: 6px;
        }

        .article-meta-strip {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px 18px;
            margin-top: 18px;
            color: rgba(255, 255, 255, .56);
            font-size: 13px;
        }
        .article-meta-strip i {
            margin-right: 5px;
            color: rgba(255, 255, 255, .42);
        }
        .meta-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(0, 200, 150, .16);
            border: 1px solid rgba(0, 200, 150, .3);
            color: #35F0C4;
            padding: 3px 12px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
        }

        /* ===== Main Article Body ===== */
        .article-main-wrap {
            position: relative;
            z-index: 2;
            margin-top: -58px;
            padding-bottom: 40px;
        }

        .article-content-panel {
            background: var(--card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
        }

        .article-panel-inner {
            padding: 44px 52px 52px;
        }

        .article-body-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
            word-break: break-word;
        }
        .article-body-content > *:first-child {
            margin-top: 0;
        }
        .article-body-content p {
            margin: 0 0 22px;
        }
        .article-body-content h2 {
            font-size: 1.45rem;
            font-weight: 700;
            margin: 42px 0 18px;
            line-height: 1.4;
            color: var(--ink);
            padding-left: 14px;
            border-left: 4px solid var(--primary);
        }
        .article-body-content h3 {
            font-size: 1.18rem;
            font-weight: 700;
            margin: 32px 0 14px;
            color: var(--ink);
        }
        .article-body-content ul,
        .article-body-content ol {
            margin: 0 0 22px;
            padding-left: 22px;
        }
        .article-body-content li {
            margin-bottom: 8px;
        }
        .article-body-content a {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .article-body-content a:hover {
            color: var(--primary);
        }
        .article-body-content img {
            border-radius: 12px;
            margin: 26px 0;
            width: auto;
            max-width: 100%;
            height: auto;
            box-shadow: var(--shadow-sm);
        }
        .article-body-content blockquote {
            position: relative;
            margin: 26px 0;
            padding: 20px 24px 20px 28px;
            background: #F0FDF8;
            border-radius: 0 var(--radius) var(--radius) 0;
            border-left: 4px solid var(--primary);
            color: var(--text-sub);
            font-size: 15px;
        }
        .article-body-content blockquote p:last-child {
            margin-bottom: 0;
        }
        .article-body-content table {
            width: 100%;
            margin: 26px 0;
            border-collapse: collapse;
            font-size: 14.5px;
            border-color: var(--border);
        }
        .article-body-content table th {
            background: #F7F9FC;
            font-weight: 600;
            color: var(--ink);
        }
        .article-body-content table th,
        .article-body-content table td {
            border: 1px solid var(--border);
            padding: 11px 14px;
            text-align: left;
        }
        .article-body-content hr {
            border: 0;
            border-top: 1px solid var(--border);
            margin: 32px 0;
        }

        /* ===== Empty State ===== */
        .article-empty-state {
            text-align: center;
            padding: 56px 24px 68px;
        }
        .article-empty-state i {
            font-size: 3.2rem;
            color: var(--primary);
            opacity: .6;
            margin-bottom: 16px;
        }
        .article-empty-state h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .article-empty-state p {
            color: var(--text-sub);
            max-width: 480px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .btn-site {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #05251D;
            font-weight: 600;
            border-radius: 10px;
            padding: 10px 24px;
            transition: all .2s ease;
            font-size: 15px;
        }
        .btn-site:hover {
            background: var(--primary-light);
            color: #05251D;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 200, 150, .28);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, .35);
            color: #fff;
            background: transparent;
            border-radius: 10px;
            padding: 10px 24px;
            font-weight: 600;
            transition: all .2s ease;
        }
        .btn-ghost:hover {
            color: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* ===== Related section ===== */
        .related-section {
            margin-top: 24px;
        }
        .related-section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 24px 4px;
        }
        .related-section-head h2 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--ink);
            margin: 0;
        }
        .related-section-head a {
            font-size: 14px;
            color: var(--text-sub);
        }
        .related-section-head a:hover {
            color: var(--primary-dark);
        }
        .related-card-list {
            padding: 18px 20px 24px;
        }
        .related-card-item {
            height: 100%;
        }
        .related-card-link {
            display: block;
            height: 100%;
            background: #F9FAFD;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all .25s ease;
        }
        .related-card-link:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
            border-color: rgba(0, 200, 150, .4);
        }
        .card-cover-art {
            height: 132px;
            overflow: hidden;
            background: var(--ink);
            position: relative;
        }
        .card-cover-art img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            opacity: .9;
            transition: transform .4s ease;
        }
        .related-card-link:hover .card-cover-art img {
            transform: scale(1.04);
        }
        .card-cover-art::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 34%, rgba(8, 14, 26, .55) 100%);
        }
        .card-topic-tag {
            position: absolute;
            left: 14px;
            bottom: 12px;
            z-index: 2;
            font-size: 12px;
            color: #E7FFFA;
            background: rgba(0, 200, 150, .85);
            padding: 3px 10px;
            border-radius: 30px;
            font-weight: 500;
            backdrop-filter: blur(5px);
        }
        .related-card-info {
            padding: 16px 18px 18px;
        }
        .related-card-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .related-card-info p {
            color: var(--text-sub);
            font-size: 13.5px;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .related-card-more {
            font-size: 13px;
            color: var(--primary-dark);
            font-weight: 500;
        }
        .related-card-more i {
            transition: transform .2s ease;
        }
        .related-card-link:hover .related-card-more i {
            transform: translateX(4px);
        }

        /* ===== Article end nav ===== */
        .article-end-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-top: 1px solid var(--border);
            margin-top: 42px;
            padding-top: 26px;
            flex-wrap: wrap;
        }
        .article-end-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-sub);
            font-size: 14px;
        }
        .article-end-link:hover {
            color: var(--primary-dark);
        }

        /* ===== CTA block ===== */
        .article-cta-panel {
            margin-top: 26px;
            background: linear-gradient(110deg, #0B1220 0%, #111D33 100%);
            border-radius: var(--radius-lg);
            color: #fff;
            padding: 26px 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .article-cta-panel h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 5px;
            color: #fff;
        }
        .article-cta-panel p {
            margin: 0;
            color: var(--text-dark-muted);
            font-size: 14px;
        }
        .article-cta-panel .btn-site {
            white-space: nowrap;
        }

        /* ===== Footer ===== */
        .main-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, .65);
            padding: 0 0 28px;
            font-size: 14px;
            line-height: 1.8;
        }
        .footer-top-banner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 30px 0;
            border-bottom: 1px solid var(--border-dark);
            flex-wrap: wrap;
        }
        .footer-top-banner h3 {
            color: #fff;
            font-size: 1.35rem;
            margin: 0 0 4px;
            font-weight: 600;
        }
        .footer-top-banner p {
            color: var(--text-dark-muted);
            margin: 0;
            font-size: 14px;
        }
        .btn-footer-cta {
            background: var(--primary);
            border-radius: 10px;
            color: #05251D;
            font-weight: 600;
            padding: 10px 22px;
            border: 1px solid var(--primary);
            transition: all .2s ease;
            white-space: nowrap;
        }
        .btn-footer-cta:hover {
            background: var(--primary-light);
            color: #05251D;
            transform: translateY(-2px);
        }
        .footer-links {
            padding: 36px 0 10px;
        }
        .footer-brand-name {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .footer-brand-name i {
            color: var(--primary);
            font-size: .95rem;
        }
        .footer-brand-desc {
            color: rgba(255, 255, 255, .5);
            font-size: 13.5px;
            line-height: 1.9;
            margin: 8px 0 8px;
            max-width: 360px;
        }
        .footer-endpoint {
            color: rgba(255, 255, 255, .34);
            font-size: 13px;
            margin-top: 6px;
        }
        .footer-col-title {
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .footer-menu-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-menu-list li {
            margin-bottom: 8px;
        }
        .footer-menu-list a {
            color: rgba(255, 255, 255, .55);
            font-size: 13.5px;
            transition: padding .2s ease, color .2s ease;
        }
        .footer-menu-list a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 22px;
            color: rgba(255, 255, 255, .4);
            font-size: 13px;
            margin-top: 30px;
        }
        .compliance-text {
            color: rgba(255, 255, 255, .28);
            font-size: 12px;
            margin-top: 4px;
        }
        .channel-chip {
            display: inline-flex;
            align-items: center;
            color: rgba(255, 255, 255, .55);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 30px;
            padding: 6px 15px;
            font-size: 13px;
            transition: all .2s ease;
        }
        .channel-chip:hover {
            color: var(--primary-light);
            border-color: var(--primary-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .hot-keywords .keyword-link:last-child {
                display: none;
            }
        }

        @media (max-width: 991.98px) {
            .article-panel-inner {
                padding: 36px 34px;
            }
            .article-subheader {
                padding: 44px 0 80px;
            }
        }

        @media (max-width: 767.98px) {
            .desktop-channel-nav {
                display: none;
            }
            .mobile-trigger {
                display: inline-flex;
            }
            .brand-text {
                font-size: .98rem;
            }
            .brand-sub {
                font-size: .62rem;
            }
            .brand-row {
                min-height: 54px;
            }
            .logo-mark {
                width: 36px;
                height: 36px;
                font-size: .9rem;
            }
            .hot-keywords {
                display: none;
            }

            .article-subheader {
                padding: 32px 0 84px;
            }
            .article-subheader h1 {
                font-size: 1.55rem;
            }
            .article-meta-strip {
                gap: 8px 12px;
            }
            .article-main-wrap {
                margin-top: -46px;
            }
            .article-panel-inner {
                padding: 24px 20px;
            }
            .article-body-content {
                font-size: 15px;
            }
            .article-body-content h2 {
                font-size: 1.25rem;
            }
            .article-body-content table {
                font-size: 13px;
            }
            .article-body-content table th,
            .article-body-content table td {
                padding: 8px 10px;
            }
            .article-cta-panel {
                padding: 24px 22px;
            }
            .footer-top-banner {
                padding: 26px 0;
            }
            .footer-top-banner h3 {
                font-size: 1.15rem;
            }
        }

        @media (max-width: 575.98px) {
            .brand-text {
                font-size: .92rem;
            }
            .brand-sub {
                display: none;
            }
            .logo-mark {
                width: 34px;
                height: 34px;
                border-radius: 10px;
            }
            .breadcrumb-current {
                max-width: 160px;
            }
            .related-card-list {
                padding: 12px 14px 20px;
            }
            .card-cover-art {
                height: 150px;
            }
        }

/* roulang page: category3 */
:root {
        --primary: #00C896;
        --primary-600: #00B386;
        --primary-soft: rgba(0, 200, 150, .12);
        --secondary: #7B68EE;
        --secondary-soft: rgba(123, 104, 238, .1);
        --dark: #0B1220;
        --dark-2: #111B2E;
        --dark-glow: rgba(255, 255, 255, .06);
        --light-bg: #F4F6FA;
        --white: #FFFFFF;
        --text-main: #1F2937;
        --text-sub: #637083;
        --text-muted: #93A0B4;
        --text-on-dark: #E8ECF3;
        --text-on-dark-muted: #A2B2C7;
        --border: #E4E8F0;
        --border-dark: rgba(255, 255, 255, .12);
        --radius-lg: 16px;
        --radius-md: 12px;
        --radius-sm: 10px;
        --shadow-sm: 0 4px 16px rgba(11, 18, 32, .05);
        --shadow-hover: 0 12px 28px rgba(11, 18, 32, .1);
        --transition: all .25s ease;
        --container-max: 1200px;
        --header-top: 52px;
        --channel-h: 42px;
    }

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

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

    body {
        font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        background: var(--light-bg);
        color: var(--text-main);
        line-height: 1.7;
        font-size: 15px;
        overflow-x: hidden;
    }

    img {
        max-width: 100%;
        height: auto;
        border: 0;
        vertical-align: middle;
    }

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

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

    .container {
        max-width: var(--container-max);
        padding-left: 24px;
        padding-right: 24px;
    }

    /* helpers */
    .text-primary-custom {
        color: var(--primary) !important;
    }
    .text-secondary-custom {
        color: var(--secondary) !important;
    }
    .bg-light-custom {
        background: var(--light-bg) !important;
    }
    .section-pad {
        padding: 80px 0;
    }
    .section-pad-sm {
        padding: 56px 0;
    }
    .rounded-card {
        border-radius: var(--radius-md);
    }

    .section-title-wrap {
        margin-bottom: 36px;
    }
    .section-title-wrap .section-sub {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        color: var(--primary);
        background: var(--primary-soft);
        border-radius: 999px;
        padding: 6px 14px;
        margin-bottom: 12px;
        letter-spacing: .3px;
    }
    .section-title-wrap h2 {
        font-size: 28px;
        line-height: 1.3;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .section-title-wrap h2::before {
        content: "";
        width: 6px;
        height: 24px;
        border-radius: 4px;
        background: var(--primary);
        display: inline-block;
    }
    .section-desc {
        font-size: 15px;
        color: var(--text-sub);
        max-width: 760px;
    }

    /* ===== header ===== */
    .main-header {
        position: sticky;
        top: 0;
        z-index: 1050;
        background: rgba(11, 18, 32, .92);
        backdrop-filter: blur(12px);
        box-shadow: 0 1px 0 var(--border-dark);
    }

    .main-header .top-brand-line {
        border-bottom: 1px solid rgba(255, 255, 255, .06);
    }

    .brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: var(--header-top);
        padding: 6px 0;
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }

    .logo-mark {
        width: 36px;
        height: 36px;
        background: linear-gradient(135deg, var(--primary) 18%, #7B68EE 90%);
        border-radius: 10px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-weight: 800;
        font-size: 16px;
        letter-spacing: -1px;
        font-family: "Inter", "DIN Alternate", sans-serif;
        box-shadow: 0 4px 12px rgba(0, 200, 150, .26);
    }

    .brand-text {
        display: flex;
        flex-direction: column;
        line-height: 1.25;
        color: #fff;
        font-weight: 700;
        font-size: 17px;
        letter-spacing: .2px;
    }

    .brand-text .brand-sub {
        font-size: 11px;
        font-weight: 400;
        color: rgba(255, 255, 255, .5);
        letter-spacing: .4px;
    }

    .brand-tools {
        display: flex;
        align-items: center;
        gap: 14px;
    }

    .hot-keywords {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: rgba(255, 255, 255, .55);
    }
    .hot-keywords i {
        color: var(--primary);
    }
    .hot-keywords .keyword-link {
        color: rgba(255, 255, 255, .65);
        border: 1px solid rgba(255, 255, 255, .12);
        border-radius: 999px;
        padding: 4px 12px;
        transition: var(--transition);
        font-size: 12px;
        display: inline-block;
    }
    .hot-keywords .keyword-link:hover {
        color: #fff;
        border-color: var(--primary);
        background: rgba(0, 200, 150, .1);
    }

    .icon-btn {
        width: 38px;
        height: 38px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, .08);
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: var(--radius-sm);
        color: #fff;
        font-size: 16px;
        transition: var(--transition);
        padding: 0;
    }
    .icon-btn:hover {
        background: rgba(0, 200, 150, .2);
        border-color: var(--primary);
        color: var(--primary);
    }

    .mobile-trigger {
        display: none;
    }

    .desktop-channel-nav {
        display: block;
    }

    .channel-nav {
        list-style: none;
        display: flex;
        align-items: center;
        gap: 8px;
        margin: 0;
        padding: 8px 0;
    }

    .channel-nav a {
        display: inline-flex;
        align-items: center;
        position: relative;
        padding: 7px 14px;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 500;
        color: rgba(255, 255, 255, .72);
        white-space: nowrap;
        transition: var(--transition);
    }
    .channel-nav a::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
        transition: var(--transition);
    }
    .channel-nav a:hover,
    .channel-nav a.active {
        color: #fff;
        background: rgba(0, 200, 150, .08);
    }
    .channel-nav a.active {
        color: var(--primary);
        font-weight: 600;
    }
    .channel-nav a.active::after,
    .channel-nav a:hover::after {
        width: 18px;
    }

    /* ===== mobile offcanvas ===== */
    .off-canvas-custom .offcanvas-header {
        background: var(--dark);
        border-bottom: 1px solid var(--border-dark);
    }
    .off-canvas-custom .offcanvas-body {
        background: var(--dark);
    }
    .off-canvas-custom .btn-close {
        filter: invert(1);
    }
    .offcanvas-search-body {
        background: var(--dark);
    }
    .offcanvas-search-body .search-box {
        display: flex;
        gap: 10px;
        padding: 12px;
    }
    .offcanvas-search-body .form-control-custom {
        background: rgba(255, 255, 255, .06);
        border: 1px solid var(--border-dark);
        color: var(--text-on-dark);
        border-radius: 10px;
        padding: 10px 16px;
    }
    .offcanvas-search-body .form-control-custom::placeholder {
        color: rgba(255, 255, 255, .35);
    }
    .offcanvas-mobile-menu .mobile-primary-list {
        list-style: none;
        padding: 8px;
    }
    .offcanvas-mobile-menu .mobile-primary-list li a {
        display: block;
        padding: 13px 14px;
        color: rgba(255, 255, 255, .85);
        font-size: 15px;
        font-weight: 500;
        border-radius: 10px;
        transition: var(--transition);
        border: 1px solid transparent;
    }
    .offcanvas-mobile-menu .mobile-primary-list li a:hover,
    .offcanvas-mobile-menu .mobile-primary-list li a.active-mobile {
        color: var(--primary);
        background: rgba(0, 200, 150, .06);
        border-color: rgba(0, 200, 150, .2);
    }

    /* ===== page hero ===== */
    .category-hero {
        background: linear-gradient(100deg, #0B1220 0%, #101B30 55%, #14223B 100%);
        padding: 48px 0 40px;
        position: relative;
        overflow: hidden;
        border-bottom: 1px solid var(--border-dark);
    }
    .category-hero::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        opacity: .12;
    }
    .category-hero::after {
        content: "";
        position: absolute;
        width: 300px;
        height: 300px;
        right: -90px;
        top: -140px;
        background: radial-gradient(circle, rgba(0, 200, 150, .18) 0%, transparent 70%);
        border-radius: 50%;
    }
    .category-hero .hero-inner {
        position: relative;
        z-index: 2;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 20px;
    }
    .category-hero .bc {
        font-size: 13px;
        color: rgba(255, 255, 255, .4);
        margin-bottom: 10px;
        display: flex;
        gap: 6px;
        flex-wrap: wrap;
    }
    .category-hero .bc a {
        color: rgba(255, 255, 255, .45);
        transition: var(--transition);
    }
    .category-hero .bc a:hover {
        color: var(--primary);
    }
    .category-hero h1 {
        color: #fff;
        font-size: 30px;
        font-weight: 700;
        margin: 0;
        line-height: 1.3;
    }
    .category-hero .page-tagline {
        color: rgba(255, 255, 255, .55);
        font-size: 15px;
        line-height: 1.7;
        margin-top: 8px;
        max-width: 720px;
    }
    .hero-flag {
        background: rgba(0, 200, 150, .14);
        border: 1px solid rgba(0, 200, 150, .25);
        color: var(--primary);
        border-radius: 999px;
        padding: 6px 14px;
        font-size: 12px;
        font-weight: 500;
        white-space: nowrap;
        display: inline-block;
    }

    /* ===== 优势卡片 ===== */
    .service-card {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 24px 22px;
        height: 100%;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .service-card::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0;
        width: 3px;
        height: 0;
        background: var(--primary);
        transition: var(--transition);
    }
    .service-card:hover {
        border-color: rgba(0, 200, 150, .35);
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }
    .service-card:hover::before {
        height: 100%;
    }
    .service-card .card-icon {
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: var(--primary-soft);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        font-size: 18px;
        margin-bottom: 16px;
    }
    .service-card .card-icon.purple {
        background: var(--secondary-soft);
        color: var(--secondary);
    }
    .service-card h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 8px;
        line-height: 1.4;
    }
    .service-card p {
        font-size: 14px;
        color: var(--text-sub);
        line-height: 1.65;
        margin-bottom: 0;
    }

    /* ===== Bento ===== */
    .bento-wrap {
        display: flex;
        flex-wrap: wrap;
        gap: 24px;
    }
    .bento-item {
        border-radius: var(--radius-lg);
        background: var(--white);
        border: 1px solid var(--border);
        overflow: hidden;
        transition: var(--transition);
        position: relative;
    }
    .bento-item:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
        border-color: rgba(0, 200, 150, .3);
    }
    .bento-main {
        width: calc(66.666% - 12px);
        min-height: 320px;
        display: flex;
        align-items: stretch;
    }
    .bento-sub {
        width: calc(33.333% - 12px);
        min-height: 150px;
    }
    .bento-image-side {
        flex: 0 0 45%;
        background-image: url('/assets/images/coverpic/cover-5.webp');
        background-size: cover;
        background-position: center;
        position: relative;
        min-height: 240px;
    }
    .bento-image-side.two {
        background-image: url('/assets/images/coverpic/cover-2.webp');
    }
    .bento-image-side::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, .25) 100%);
    }
    .bento-content {
        padding: 28px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        flex: 1;
    }
    .bento-content .bento-tag {
        background: var(--primary-soft);
        color: var(--primary-600);
        font-size: 12px;
        font-weight: 600;
        border-radius: 999px;
        padding: 5px 10px;
        display: inline-flex;
        align-items: center;
        width: fit-content;
        margin-bottom: 12px;
        text-transform: uppercase;
        letter-spacing: .4px;
    }
    .bento-content h3 {
        font-size: 21px;
        font-weight: 700;
        color: var(--text-main);
        line-height: 1.35;
        margin-bottom: 10px;
    }
    .bento-content p {
        color: var(--text-sub);
        font-size: 14px;
        line-height: 1.7;
        margin-bottom: 14px;
    }
    .bento-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .bento-list li {
        display: flex;
        gap: 8px;
        align-items: flex-start;
        font-size: 14px;
        color: var(--text-main);
        margin-bottom: 8px;
    }
    .bento-list li i {
        color: var(--primary);
        font-size: 13px;
        margin-top: 4px;
    }
    .bento-side-layout {
        padding: 24px;
        min-height: 150px;
    }
    .bento-side-layout .bento-icon {
        width: 38px;
        height: 38px;
        background: var(--primary-soft);
        border-radius: 10px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        font-size: 15px;
        margin-bottom: 12px;
    }
    .bento-side-layout .bento-icon.purple {
        background: var(--secondary-soft);
        color: var(--secondary);
    }
    .bento-side-layout h3 {
        font-size: 15px;
        font-weight: 600;
        margin-bottom: 6px;
    }
    .bento-side-layout p {
        font-size: 13px;
        color: var(--text-sub);
        margin: 0;
        line-height: 1.6;
    }

    /* ===== 适用场景 ===== */
    .scenario-block {
        background: var(--dark);
        color: var(--text-on-dark);
    }
    .scenario-block .section-title-wrap h2 {
        color: #fff;
    }
    .section-title-wrap.light h2::before {
        background: var(--primary);
    }
    .section-title-wrap.light .section-desc {
        color: rgba(255, 255, 255, .5);
    }
    .scenario-card {
        border: 1px solid var(--border-dark);
        background: rgba(255, 255, 255, .045);
        border-radius: var(--radius-md);
        padding: 24px;
        height: 100%;
        backdrop-filter: blur(6px);
        transition: var(--transition);
    }
    .scenario-card:hover {
        border-color: rgba(0, 200, 150, .3);
        background: rgba(255, 255, 255, .08);
        transform: translateY(-4px);
    }
    .scenario-card .step-num {
        font-family: "Inter", "DIN Alternate", sans-serif;
        font-size: 27px;
        font-weight: 700;
        color: var(--primary);
        line-height: 1;
        margin-bottom: 12px;
        display: block;
    }
    .scenario-card h3 {
        font-size: 16px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 8px;
    }
    .scenario-card p {
        color: rgba(255, 255, 255, .5);
        font-size: 14px;
        margin: 0;
        line-height: 1.6;
    }
    .scenario-card ul {
        margin: 10px 0 0;
        padding-left: 16px;
        color: rgba(255, 255, 255, .65);
        font-size: 13px;
    }
    .scenario-card ul li {
        margin-bottom: 4px;
    }

    /* ===== 服务流程时间线 ===== */
    .timeline-section {
        background: var(--light-bg);
    }
    .timeline-item {
        display: flex;
        gap: 18px;
        position: relative;
        padding-bottom: 28px;
    }
    .timeline-item:last-child {
        padding-bottom: 0;
    }
    .timeline-item:not(:last-child)::before {
        content: "";
        position: absolute;
        left: 20px;
        top: 42px;
        bottom: 0;
        width: 2px;
        background: var(--border);
    }
    .timeline-dot {
        width: 40px;
        height: 40px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: 14px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 15px;
        color: var(--primary);
        flex-shrink: 0;
        position: relative;
        z-index: 1;
        box-shadow: var(--shadow-sm);
    }
    .timeline-item.year-pass .timeline-dot {
        color: var(--secondary);
        border-color: rgba(123, 104, 238, .3);
    }
    .timeline-content {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 18px 20px;
        flex: 1;
        transition: var(--transition);
    }
    .timeline-content:hover {
        border-color: rgba(0, 200, 150, .25);
        box-shadow: var(--shadow-hover);
    }
    .timeline-content h3 {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 6px;
    }
    .timeline-content p {
        font-size: 14px;
        color: var(--text-sub);
        margin: 0;
        line-height: 1.6;
    }

    /* ===== 内容对比 ===== */
    .compare-panel {
        background: var(--dark);
    }
    .compare-card {
        height: 100%;
    }
    .compare-left {
        background: rgba(255, 255, 255, .04);
        border: 1px solid var(--border-dark);
        border-radius: var(--radius-lg);
        padding: 28px;
        position: relative;
        overflow: hidden;
    }
    .compare-left::before,
    .compare-right::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0;
        height: 3px;
        width: 100%;
        background: linear-gradient(90deg, rgba(255, 255, 255, .15), rgba(255, 255, 255, .02));
    }
    .compare-right {
        background: rgba(0, 200, 150, .08);
        border: 1px solid rgba(0, 200, 150, .25);
        border-radius: var(--radius-lg);
        padding: 28px;
        position: relative;
        overflow: hidden;
    }
    .compare-right::before {
        background: linear-gradient(90deg, rgba(0, 200, 150, .4), rgba(0, 200, 150, .05));
    }
    .compare-label {
        font-size: 13px;
        letter-spacing: 1px;
        font-weight: 400;
        color: rgba(255, 255, 255, .4);
        text-transform: uppercase;
        margin-bottom: 16px;
    }
    .compare-title {
        font-size: 19px;
        font-weight: 700;
        color: #fff;
        line-height: 1.4;
        margin-bottom: 12px;
    }
    .compare-list {
        list-style: none;
        padding: 0;
        margin: 0 0 16px;
    }
    .compare-list li {
        display: flex;
        gap: 10px;
        align-items: flex-start;
        padding: 7px 0;
        color: rgba(255, 255, 255, .64);
        font-size: 14px;
        line-height: 1.5;
    }
    .compare-list li i {
        margin-top: 4px;
        font-size: 12px;
        flex-shrink: 0;
    }
    .compare-list .icon-no {
        color: #FF5C7A;
    }
    .compare-list .icon-yes {
        color: var(--primary);
    }
    .compare-note-right {
        display: block;
        margin-top: 10px;
        border-top: 1px solid rgba(0, 200, 150, .2);
        padding-top: 12px;
        color: var(--primary);
        font-weight: 500;
    }
    .compare-note-left {
        display: block;
        margin-top: 10px;
        border-top: 1px solid var(--border-dark);
        padding-top: 12px;
        color: rgba(255, 255, 255, .35);
        font-size: 13px;
    }
    .vs-middle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .vs-badge {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--dark-2);
        border: 1px solid var(--border-dark);
        color: rgba(255, 255, 255, .3);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: .5px;
    }

    /* ===== FAQ ===== */
    .faq-section {
        background: var(--white);
    }
    .faq-side-title h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--text-main);
        line-height: 1.3;
        margin-bottom: 12px;
    }
    .faq-side-title p {
        color: var(--text-sub);
        line-height: 1.75;
        margin-bottom: 18px;
    }
    .faq-side-card {
        border: 1px solid var(--border);
        background: var(--light-bg);
        border-radius: var(--radius-md);
        padding: 24px;
        margin-top: 18px;
    }
    .faq-side-card .side-icon {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: var(--secondary-soft);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--secondary);
        font-size: 16px;
        margin-bottom: 12px;
    }
    .faq-side-card h5 {
        font-size: 15px;
        font-weight: 600;
        margin-bottom: 6px;
    }
    .faq-side-card p {
        font-size: 13px;
        color: var(--text-sub);
        margin-bottom: 14px;
    }
    .faq-side-card a {
        font-size: 14px;
        color: var(--primary);
        font-weight: 500;
    }
    .accordion-custom {
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
    }
    .accordion-item {
        border: 0;
        border-bottom: 1px solid var(--border);
        background: #fff;
        position: relative;
    }
    .accordion-item:last-child {
        border-bottom: 0;
    }
    .accordion-button {
        padding: 17px 20px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-main);
        background: #fff;
        box-shadow: none;
        border-left: 3px solid transparent;
        transition: var(--transition);
        gap: 12px;
    }
    .accordion-button:not(.collapsed) {
        color: var(--text-main);
        background: rgba(0, 200, 150, .04);
        box-shadow: none;
        border-left-color: var(--primary);
    }
    .accordion-button:focus {
        box-shadow: none;
    }
    .accordion-button::after {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300C896'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    }
    .accordion-body {
        padding: 4px 20px 20px 23px;
        color: var(--text-sub);
        font-size: 14px;
        line-height: 1.7;
        background: rgba(255, 255, 255, .95);
        border-left: 3px solid rgba(0, 200, 150, .3);
    }

    /* ===== CTA section ===== */
    .cta-section {
        background: linear-gradient(120deg, rgba(11, 18, 32, .98) 0%, rgba(18, 31, 55, .97) 100%), url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
        position: relative;
        padding: 70px 0;
        border-top: 1px solid var(--border-dark);
    }
    .cta-section::before {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 20% 80%, rgba(0, 200, 150, .12) 0%, transparent 50%);
    }
    .cta-section .container {
        position: relative;
        z-index: 2;
    }
    .cta-left h2 {
        font-size: 27px;
        color: #fff;
        font-weight: 700;
        line-height: 1.4;
        margin-bottom: 12px;
    }
    .cta-left p {
        color: rgba(255, 255, 255, .55);
        font-size: 15px;
        line-height: 1.8;
        margin-bottom: 22px;
        max-width: 420px;
    }
    .cta-point {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 10px;
    }
    .cta-point span {
        background: rgba(0, 200, 150, .1);
        border: 1px solid rgba(0, 200, 150, .18);
        color: #A5E8D5;
        border-radius: 999px;
        font-size: 13px;
        padding: 6px 13px;
        display: inline-flex;
        align-items: center;
        gap: 7px;
    }
    .cta-form-card {
        background: #fff;
        border-radius: var(--radius-lg);
        padding: 28px;
        box-shadow: 0 24px 60px rgba(0, 0, 0, .25);
    }
    .cta-form-card h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 4px;
    }
    .cta-form-card .form-sub {
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 18px;
    }
    .cta-form-card label {
        font-size: 13px;
        font-weight: 500;
        color: var(--text-main);
        margin-bottom: 6px;
        display: block;
    }
    .cta-form-card .form-control-custom {
        width: 100%;
        border: 1px solid var(--border);
        border-radius: 10px;
        padding: 10px 14px;
        font-size: 14px;
        background: var(--light-bg);
        color: var(--text-main);
        margin-bottom: 12px;
        transition: var(--transition);
    }
    .cta-form-card .form-control-custom:focus {
        outline: none;
        border-color: var(--primary);
        background: #fff;
        box-shadow: 0 0 0 3px rgba(0, 200, 150, .15);
    }
    .cta-form-card textarea {
        resize: vertical;
        min-height: 86px;
    }
    .cta-form-submit {
        width: 100%;
        background: var(--primary);
        border: 0;
        color: #0B1220;
        font-size: 15px;
        font-weight: 600;
        padding: 12px 20px;
        border-radius: 10px;
        transition: var(--transition);
        cursor: pointer;
    }
    .cta-form-submit:hover {
        background: #00dca6;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(0, 200, 150, .3);
    }
    .form-hint-error {
        font-size: 12px;
        color: #FF5C7A;
        margin-top: -6px;
        margin-bottom: 10px;
        display: block;
    }
    .form-hint-success {
        font-size: 12px;
        color: var(--primary);
        margin-top: 8px;
        background: var(--primary-soft);
        border-radius: 8px;
        padding: 6px 10px;
        display: none;
    }

    /* ===== footer ===== */
    .main-footer {
        background: #080D17;
        border-top: 1px solid rgba(255, 255, 255, .08);
        color: rgba(255, 255, 255, .7);
        position: relative;
        z-index: 2;
    }
    .main-footer .footer-top-banner {
        background: linear-gradient(135deg, rgba(0, 200, 150, .1), rgba(123, 104, 238, .06));
        border: 1px solid rgba(0, 200, 150, .2);
        border-radius: var(--radius-lg);
        margin: -42px 0 24px;
        padding: 24px 28px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        flex-wrap: wrap;
    }
    .footer-top-banner h3 {
        color: #fff;
        font-size: 17px;
        font-weight: 600;
        margin: 0 0 4px;
    }
    .footer-top-banner p {
        color: rgba(255, 255, 255, .45);
        font-size: 13px;
        margin: 0;
    }
    .footer-top-banner .btn-footer-cta {
        background: var(--primary);
        color: #0B1220;
        border: 0;
        padding: 10px 20px;
        border-radius: 10px;
        font-weight: 600;
        font-size: 14px;
        transition: var(--transition);
        white-space: nowrap;
    }
    .footer-top-banner .btn-footer-cta:hover {
        background: #00dca6;
        box-shadow: 0 8px 20px rgba(0, 200, 150, .3);
    }
    .main-footer .container {
        padding-top: 40px;
        padding-bottom: 24px;
    }
    .footer-links {
        padding-top: 20px;
        border-top: 1px solid rgba(255, 255, 255, .08);
    }
    .footer-brand-name {
        font-size: 20px;
        font-weight: 700;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 6px;
        margin-bottom: 10px;
    }
    .footer-brand-name i {
        color: var(--primary);
        font-size: 14px;
    }
    .footer-brand-desc {
        font-size: 13px;
        line-height: 1.75;
        color: #637083;
        margin-bottom: 8px;
        max-width: 340px;
    }
    .footer-endpoint {
        font-size: 13px;
        color: rgba(255, 255, 255, .25);
        font-family: ui-monospace, "Cascadia Mono", monospace;
        background: rgba(255, 255, 255, .04);
        border: 1px solid rgba(255, 255, 255, .08);
        display: inline-block;
        border-radius: 8px;
        padding: 6px 10px;
    }
    .footer-col-title {
        font-size: 15px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 14px;
    }
    .footer-menu-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-menu-list li {
        margin-bottom: 8px;
    }
    .footer-menu-list a {
        color: rgba(255, 255, 255, .5);
        font-size: 14px;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        transition: var(--transition);
    }
    .footer-menu-list a:hover {
        color: var(--primary);
        padding-left: 3px;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, .08);
        margin-top: 24px;
        padding-top: 22px;
        font-size: 13px;
    }
    .footer-bottom .row {
        align-items: center;
    }
    .footer-bottom .row>div {
        color: rgba(255, 255, 255, .3);
    }
    .compliance-text {
        margin-top: 4px;
    }
    .channel-chip {
        background: rgba(255, 255, 255, .05);
        border: 1px solid rgba(255, 255, 255, .1);
        display: inline-block;
        padding: 7px 15px;
        border-radius: 999px;
        color: rgba(255, 255, 255, .7);
        font-size: 13px;
        transition: var(--transition);
    }
    .channel-chip:hover {
        border-color: var(--primary);
        color: var(--primary);
    }

    /* focus styles */
    a:focus-visible,
    button:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 3px;
        border-radius: 6px;
    }

    /* ===== media queries ===== */
    @media (max-width: 991.98px) {
        .section-pad {
            padding: 60px 0;
        }
        .section-pad-sm {
            padding: 44px 0;
        }
        .timeline-content {
            padding: 15px;
        }
        .hot-keywords {
            display: none;
        }
        .bento-main,
        .bento-sub {
            width: 100%;
        }
        .bento-main {
            flex-direction: column;
        }
        .bento-image-side {
            min-height: 200px;
            flex: 0 0 200px;
            width: 100%;
        }
        .bento-image-side::after {
            background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, .1));
        }
        .category-hero {
            padding: 40px 0;
        }
        .cta-left {
            margin-bottom: 25px;
        }
        .footer-links .col-lg-4,
        .footer-links .col-lg-2,
        .footer-links .col-lg-3 {
            margin-bottom: 20px;
        }
        .vs-middle {
            padding: 16px 0;
        }
        .compare-left,
        .compare-right {
            padding: 20px;
        }
    }

    @media (max-width: 767.98px) {
        .section-pad {
            padding: 50px 0;
        }
        .section-title-wrap h2 {
            font-size: 24px;
        }
        .brand-text {
            font-size: 15px;
        }
        .brand-text .brand-sub {
            font-size: 10px;
        }
        .desktop-channel-nav {
            display: none;
        }
        .mobile-trigger {
            display: block;
        }
        .brand-row {
            min-height: 50px;
        }
        .main-header .top-brand-line .container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .category-hero h1 {
            font-size: 24px;
        }
        .category-hero .page-tagline {
            font-size: 14px;
        }
        .hero-flag {
            font-size: 11px;
        }
        .accordion-button {
            font-size: 14px;
            padding: 13px 12px;
        }
        .accordion-body {
            padding-left: 15px;
            font-size: 13px;
        }
        .timeline-item {
            gap: 10px;
        }
        .timeline-dot {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            font-size: 13px;
        }
        .timeline-item:not(:last-child)::before {
            left: 17px;
        }
        .faq-side-title {
            margin-bottom: 14px;
        }
        .cta-form-card {
            padding: 20px;
        }
        .cta-left h2 {
            font-size: 23px;
        }
        .footer-top-banner {
            padding: 18px 16px;
            margin-top: -28px;
        }
        .footer-top-banner .btn-footer-cta {
            width: 100%;
        }
        .main-footer .container {
            padding-left: 16px;
            padding-right: 16px;
        }
    }

    @media (max-width: 575.98px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .section-title-wrap h2 {
            font-size: 21px;
            line-height: 1.35;
        }
        .section-title-wrap {
            margin-bottom: 28px;
        }
        .section-desc {
            font-size: 14px;
        }
        .category-hero {
            padding: 32px 0;
        }
        .category-hero h1 {
            font-size: 22px;
        }
        .logo-mark {
            width: 33px;
            height: 33px;
            border-radius: 9px;
            font-size: 14px;
        }
        .brand-text {
            font-size: 14px;
            line-height: 1.2;
        }
        .brand-text .brand-sub {
            font-size: 9.5px;
        }
        .bento-content {
            padding: 18px;
        }
        .bento-content h3 {
            font-size: 18px;
        }
        .bento-content p {
            font-size: 13px;
        }
        .service-card {
            padding: 18px 16px;
        }
        .service-card h3 {
            font-size: 16px;
        }
        .service-card p {
            font-size: 13px;
        }
        .scenario-card {
            padding: 18px;
        }
        .timeline {
            padding-left: 0;
        }
        .timeline-item {
            flex-direction: column;
        }
        .timeline-item:not(:last-child)::before {
            left: 21px;
            top: 46px;
            bottom: -4px;
        }
        .timeline-dot {
            margin-bottom: 0;
        }
        .timeline-content {
            margin-left: 16px;
        }
        .compare-left,
        .compare-right {
            padding: 16px;
        }
        .compare-title {
            font-size: 17px;
        }
        .vs-middle {
            padding: 4px 0;
        }
        .vs-badge {
            transform: rotate(90deg);
        }
        .category-hero .page-tagline {
            font-size: 13px;
        }
        .cta-point span {
            font-size: 12px;
        }
    }

/* roulang page: category2 */
:root {
            --brand: #00C896;
            --brand-dark: #00A97F;
            --brand-soft: rgba(0, 200, 150, .13);
            --accent: #7B68EE;
            --ink: #0B1220;
            --ink-deep: #070D18;
            --panel: #111A2C;
            --body-bg: #F4F6FA;
            --card-bg: #FFFFFF;
            --text-main: #1F2937;
            --text-muted: #637083;
            --text-faint: #93A0B4;
            --line: #E4E8F0;
            --line-dark: rgba(255, 255, 255, .12);
            --text-on-dark: #E8ECF3;
            --text-on-dark-muted: #A2B2C7;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 16px rgba(11, 18, 32, .05);
            --shadow-md: 0 12px 28px rgba(11, 18, 32, .1);
            --container-max: 1200px;
            --transition: .2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--body-bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
        }

        ul,
        ol {
            padding-left: 0;
            margin: 0;
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-weight: 700;
            line-height: 1.3;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: linear-gradient(180deg, rgba(7, 13, 24, .95), rgba(11, 18, 32, .92));
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .top-brand-line {
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 54px;
            gap: 16px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #04120D;
            font-weight: 800;
            font-size: 15px;
            border-radius: 9px;
            letter-spacing: -1px;
            box-shadow: 0 0 0 4px rgba(0, 200, 150, .14);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.25;
            font-weight: 700;
            font-size: 18px;
            white-space: nowrap;
        }

        .brand-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: .3px;
            color: rgba(255, 255, 255, .55);
        }

        .brand-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .hot-keywords {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            color: rgba(255, 255, 255, .64);
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            padding: 5px 10px;
            border-radius: 999px;
        }

        .hot-keywords i {
            color: var(--brand);
            margin-right: 2px;
        }

        .hot-keywords .keyword-link {
            color: rgba(255, 255, 255, .82);
            padding: 0 6px;
            border-right: 1px solid rgba(255, 255, 255, .15);
        }

        .hot-keywords .keyword-link:last-child {
            border-right: 0;
        }

        .hot-keywords .keyword-link:hover {
            color: var(--brand);
        }

        .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .1);
            color: rgba(255, 255, 255, .86);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }

        .icon-btn:hover {
            background: rgba(255, 255, 255, .15);
            color: var(--brand);
            border-color: rgba(0, 200, 150, .4);
        }

        .mobile-trigger {
            display: none;
        }

        .channel-nav-row {
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            min-height: 42px;
        }

        .channel-nav a {
            position: relative;
            display: inline-flex;
            align-items: center;
            height: 42px;
            padding: 0 16px;
            color: rgba(255, 255, 255, .72);
            font-size: 15px;
            gap: 6px;
            transition: color var(--transition);
        }

        .channel-nav a i {
            font-size: 13px;
            opacity: .75;
        }

        .channel-nav a:hover {
            color: #fff;
        }

        .channel-nav a.active {
            color: #fff;
            font-weight: 600;
        }

        .channel-nav a.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: -1px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px 2px 0 0;
            box-shadow: 0 0 12px rgba(0, 200, 150, .6);
        }

        .offcanvas {
            background: var(--ink);
            border-left: 1px solid var(--line-dark);
            color: #fff;
        }

        .offcanvas-header {
            padding: 18px 22px;
        }

        .offcanvas-body {
            padding: 10px 22px 32px;
        }

        .offcanvas-mobile-menu a {
            display: flex;
            align-items: center;
            padding: 15px 0;
            color: rgba(255, 255, 255, .82);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            gap: 10px;
            font-size: 16px;
        }

        .offcanvas-mobile-menu a i {
            color: var(--brand);
            width: 20px;
            text-align: center;
        }

        .offcanvas-mobile-menu a.active {
            color: var(--brand);
            font-weight: 600;
        }

        /* ===== Category hero ===== */
        .category-hero {
            background: linear-gradient(120deg, rgba(7, 13, 24, .97) 0%, rgba(11, 18, 32, .9) 55%, rgba(17, 26, 44, .82) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 54px 0 66px;
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .breadcrumb-nav {
            margin-bottom: 28px;
        }

        .breadcrumb-nav ol {
            display: flex;
            flex-wrap: wrap;
            padding: 0;
            margin: 0;
            list-style: none;
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            gap: 8px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .65);
        }

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

        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, .3);
        }

        .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 200, 150, .16);
            border: 1px solid rgba(0, 200, 150, .35);
            color: #70F2CB;
            font-size: 13px;
            padding: 5px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .category-hero .page-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            letter-spacing: .5px;
            margin-bottom: 12px;
        }

        .category-hero-lead {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .76);
            max-width: 660px;
            margin-bottom: 22px;
        }

        .hero-guide-card {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .13);
            border-radius: 16px;
            padding: 22px;
            backdrop-filter: blur(6px);
        }

        .hero-guide-card h4 {
            font-size: 15px;
            margin-bottom: 16px;
            color: rgba(255, 255, 255, .9);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-guide-card h4 i {
            color: var(--brand);
        }

        .hero-guide-card li {
            display: flex;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
            font-size: 14px;
            color: rgba(255, 255, 255, .78);
        }

        .hero-guide-card li:last-child {
            border-bottom: 0;
        }

        .hero-guide-card li .count {
            color: var(--brand);
            font-weight: 700;
            width: 20px;
            flex: none;
        }

        .hero-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .btn-mint {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand);
            color: #071712;
            border: 1px solid var(--brand);
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 999px;
            transition: all var(--transition);
        }

        .btn-mint:hover {
            background: #21D8A8;
            border-color: #21D8A8;
            color: #04120D;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 200, 150, .22);
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #E8ECF3;
            border: 1px solid rgba(255, 255, 255, .32);
            padding: 9px 20px;
            border-radius: 999px;
            font-weight: 500;
            transition: all var(--transition);
        }

        .btn-outline-light-custom:hover {
            color: #fff;
            border-color: rgba(255, 255, 255, .7);
            background: rgba(255, 255, 255, .06);
            transform: translateY(-2px);
        }

        /* ===== Section ===== */
        .section {
            padding: 76px 0;
        }

        .section-head {
            margin-bottom: 34px;
        }

        .overline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .5px;
            margin-bottom: 8px;
            background: var(--brand-soft);
            padding: 5px 12px;
            border-radius: 999px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title::before {
            content: "";
            width: 4px;
            height: 24px;
            background: var(--brand);
            border-radius: 3px;
            display: inline-block;
        }

        .section-sub {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 640px;
        }

        .text-dark-card {
            background: var(--ink);
            color: #fff;
        }

        .text-dark-card .section-title {
            color: #fff;
        }

        .text-dark-card .section-sub {
            color: rgba(255, 255, 255, .65);
        }

        /* ===== Index icon cards ===== */
        .guide-index-card {
            background: var(--card-bg);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 22px;
            height: 100%;
            transition: all .25s ease;
            position: relative;
            overflow: hidden;
        }

        .guide-index-card::before {
            content: "";
            position: absolute;
            inset: 0 auto auto 0;
            width: 2px;
            height: 0;
            background: var(--brand);
            transition: height .3s ease;
        }

        .guide-index-card:hover {
            border-color: rgba(0, 200, 150, .3);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .guide-index-card:hover::before {
            height: 100%;
        }

        .guide-index-card .icon-box {
            width: 42px;
            height: 42px;
            border-radius: 11px;
            background: var(--brand-soft);
            color: var(--brand);
            font-size: 19px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
        }

        .guide-index-card:nth-child(2) .icon-box {
            background: rgba(123, 104, 238, .12);
            color: var(--accent);
        }

        .guide-index-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .guide-index-card .desc {
            color: var(--text-muted);
            font-size: 13px;
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .guide-index-card .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-sm {
            display: inline-block;
            font-size: 12px;
            color: var(--text-muted);
            background: var(--body-bg);
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 2px 9px;
        }

        .guide-index-card .more-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--brand-dark);
            font-size: 13px;
            font-weight: 600;
        }

        .guide-index-card .more-link i {
            transition: transform var(--transition);
        }

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

        /* ===== Feature block ===== */
        .feature-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            height: 100%;
            min-height: 280px;
        }

        .feature-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .feature-img-wrap:hover img {
            transform: scale(1.03);
        }

        .feature-img-wrap .img-tip {
            position: absolute;
            left: 16px;
            bottom: 16px;
            background: rgba(7, 13, 24, .75);
            border: 1px solid rgba(255, 255, 255, .15);
            backdrop-filter: blur(8px);
            color: #fff;
            border-radius: 999px;
            font-size: 13px;
            padding: 7px 13px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .feature-img-wrap .img-tip i {
            color: var(--brand);
        }

        .guide-list-item {
            display: flex;
            flex-direction: column;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--line);
        }

        .guide-list-item:last-child {
            border-bottom: 0;
        }

        .guide-list-head {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: var(--ink);
        }

        .guide-list-head .dot {
            width: 30px;
            height: 30px;
            flex: none;
            border-radius: 9px;
            background: var(--brand-soft);
            color: var(--brand-dark);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
        }

        .guide-list-body {
            padding-left: 40px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.9;
        }

        .compare-note {
            border-left: 3px solid var(--accent);
            background: rgba(123, 104, 238, .07);
            border-radius: 0 10px 10px 0;
            padding: 10px 16px;
            font-size: 13px;
            color: #5046A0;
            margin-top: 16px;
        }

        /* ===== Dark section / steps ===== */
        .steps-section {
            background: var(--ink);
            position: relative;
            overflow: hidden;
        }

        .steps-section::after {
            content: "";
            position: absolute;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(0, 200, 150, .13), transparent 70%);
            right: -80px;
            top: -80px;
            pointer-events: none;
        }

        .step-card {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            height: 100%;
            transition: all .25s ease;
            backdrop-filter: blur(4px);
        }

        .step-card:hover {
            background: rgba(255, 255, 255, .08);
            transform: translateY(-3px);
            border-color: rgba(0, 200, 150, .35);
        }

        .step-num {
            font-size: 30px;
            font-weight: 800;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1px rgba(0, 200, 150, .8);
            margin-bottom: 14px;
        }

        .step-card h4 {
            color: #fff;
            font-size: 17px;
            margin-bottom: 8px;
        }

        .step-card p {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
        }

        .steps-connect {
            margin: 28px 0 0;
            background: rgba(0, 200, 150, .08);
            border: 1px dashed rgba(0, 200, 150, .35);
            color: rgba(255, 255, 255, .75);
            border-radius: 12px;
            padding: 13px 18px;
            font-size: 14px;
        }

        .steps-connect i {
            color: var(--brand);
            margin-right: 8px;
        }

        /* ===== Cards with picture ===== */
        .guide-tip-card {
            background: var(--card-bg);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 18px;
            height: 100%;
            display: flex;
            gap: 14px;
            transition: all var(--transition);
        }

        .guide-tip-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(0, 200, 150, .28);
        }

        .guide-tip-card img {
            width: 88px;
            height: 88px;
            object-fit: cover;
            border-radius: 10px;
            flex: none;
        }

        .guide-tip-card h4 {
            font-size: 16px;
            color: var(--ink);
            margin-bottom: 4px;
        }

        .guide-tip-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .guide-tip-meta {
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-faint);
        }

        .guide-tip-meta .tag-line {
            color: var(--brand-dark);
            font-weight: 600;
        }

        .guide-tip-card ul {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            padding-left: 0;
            list-style: none;
            margin-bottom: 0;
            margin-top: 6px;
        }

        .guide-tip-card li {
            display: flex;
            gap: 8px;
        }

        .guide-tip-card li i {
            color: var(--brand);
            font-size: 12px;
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--card-bg);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .faq-intro-side {
            background: linear-gradient(150deg, var(--ink) 0%, #152033 100%);
            border-radius: var(--radius-lg);
            padding: 28px;
            color: #fff;
            position: sticky;
            top: 120px;
        }

        .faq-intro-side .icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(0, 200, 150, .15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 18px;
            margin-bottom: 16px;
        }

        .faq-intro-side h3 {
            font-size: 21px;
            margin-bottom: 9px;
        }

        .faq-intro-side p {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            line-height: 1.8;
        }

        .faq-intro-side a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            margin-top: 16px;
            color: var(--brand);
            font-weight: 600;
            font-size: 14px;
        }

        .faq-list .accordion-item {
            background: transparent;
            border-left: 0;
            border-right: 0;
            border-color: var(--line);
            margin-bottom: -1px;
        }

        .faq-list .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 600;
            padding: 21px 40px 21px 16px;
            box-shadow: none;
        }

        .faq-list .accordion-button:not(.collapsed) {
            background: var(--brand-soft);
            color: #004F3F;
        }

        .faq-list .accordion-button:focus {
            box-shadow: none;
            border-color: var(--brand);
        }

        .faq-list .accordion-button::after {
            background-size: 16px;
            filter: brightness(0.3);
            width: 16px;
            height: 16px;
        }

        .faq-list .accordion-body {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.9;
            padding: 4px 16px 20px 16px;
        }

        .faq-list .accordion-button:not(.collapsed)::after {
            filter: invert(50%) sepia(80%) saturate(1800%) hue-rotate(125deg);
        }

        /* ===== Compliance strip ===== */
        .compliance-strip {
            background: rgba(255, 138, 61, .08);
            border: 1px solid rgba(255, 138, 61, .2);
            border-radius: var(--radius-md);
            color: var(--text-muted);
            padding: 18px 20px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: 13px;
            line-height: 1.8;
        }

        .compliance-strip i {
            color: #FF8A3D;
            font-size: 17px;
            margin-top: 3px;
            flex: none;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(11, 18, 32, .98) 0%, rgba(15, 22, 36, .94) 50%, rgba(7, 13, 24, .96) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 62px 0;
            color: #fff;
        }

        .cta-section h2 {
            font-size: 27px;
            margin-bottom: 10px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .65);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: flex-end;
        }

        /* ===== Footer ===== */
        .main-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, .76);
            padding: 54px 0 0;
            font-size: 14px;
        }

        .footer-top-banner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            margin-bottom: 38px;
            flex-wrap: wrap;
        }

        .footer-top-banner h3 {
            font-size: 19px;
            margin-bottom: 4px;
            color: #fff;
        }

        .footer-top-banner p {
            color: rgba(255, 255, 255, .5);
            margin: 0;
            max-width: 620px;
            font-size: 14px;
        }

        .btn-footer-cta {
            background: var(--brand);
            border: 1px solid var(--brand);
            color: #071712;
            padding: 9px 22px;
            border-radius: 999px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .btn-footer-cta:hover {
            background: #21D8A8;
            color: #04120D;
            transform: translateY(-2px);
        }

        .footer-brand-name {
            font-size: 20px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 9px;
        }

        .footer-brand-name i {
            color: var(--brand);
            font-size: 20px;
        }

        .footer-brand-desc {
            color: rgba(255, 255, 255, .5);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 12px;
            max-width: 360px;
        }

        .footer-endpoint {
            color: rgba(255, 255, 255, .36);
            font-size: 12px;
            background: rgba(255, 255, 255, .05);
            padding: 4px 10px;
            border-radius: 999px;
            display: inline-block;
        }

        .footer-col-title {
            color: #fff;
            font-size: 15px;
            margin-bottom: 14px;
            font-weight: 600;
        }

        .footer-menu-list li {
            display: block;
        }

        .footer-menu-list a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .56);
            padding: 5px 0;
            font-size: 14px;
            transition: all var(--transition);
        }

        .footer-menu-list a:hover {
            color: var(--brand);
            transform: translateX(2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 40px;
            padding: 16px 0 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, .35);
        }

        .compliance-text {
            margin-top: 2px;
        }

        .channel-chip {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            color: rgba(255, 255, 255, .72);
            padding: 7px 15px;
            border-radius: 999px;
            font-size: 13px;
            transition: all var(--transition);
        }

        .channel-chip:hover {
            background: rgba(0, 200, 150, .15);
            border-color: rgba(0, 200, 150, .35);
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .channel-nav-row {
                overflow-x: auto;
            }
            .channel-nav {
                white-space: nowrap;
            }
            .section {
                padding: 50px 0;
            }
            .faq-intro-side {
                position: static;
                margin-bottom: 20px;
            }
            .cta-actions {
                justify-content: flex-start;
                margin-top: 16px;
            }
            .hero-guide-card {
                margin-top: 24px;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .brand-sub {
                display: none;
            }
            .brand-text {
                font-size: 16px;
            }
            .hot-keywords {
                display: none;
            }
            .desktop-channel-nav {
                display: none;
            }
            .mobile-trigger {
                display: inline-flex;
            }
            .channel-nav-row.desktop-channel-nav {
                display: none;
            }
            .category-hero {
                padding: 36px 0 44px;
            }
            .category-hero-lead {
                font-size: 15px;
            }
            .section-title {
                font-size: 23px;
            }
            .hero-btn-group {
                flex-wrap: wrap;
            }
            .guide-tip-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .guide-tip-card img {
                width: 100%;
                height: 170px;
            }
            .steps-section {
                text-align: left;
            }
            .guide-list-body {
                padding-left: 0;
            }
            .footer-top-banner {
                padding: 20px;
            }
            .feature-img-wrap {
                min-height: 220px;
            }
        }

        @media (max-width: 575.98px) {
            .logo-mark {
                width: 28px;
                height: 28px;
            }
            .brand-text {
                font-size: 15px;
            }
            .brand-tools {
                gap: 8px;
            }
            .icon-btn {
                width: 32px;
                height: 32px;
            }
            .category-hero {
                padding: 28px 0 36px;
            }
            .category-hero .page-title {
                font-size: 26px;
            }
            .hero-guide-card {
                padding: 16px;
            }
            .step-card {
                padding: 20px 18px;
            }
            .compliance-strip {
                padding: 14px;
            }
            .cta-section {
                padding: 42px 0;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .footer-bottom {
                text-align: center;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #00C896;
            --primary-dark: #00b080;
            --secondary: #7B68EE;
            --dark-bg: #0B1220;
            --light-bg: #F4F6FA;
            --white: #FFFFFF;
            --text-main: #1F2937;
            --text-sub: #637083;
            --text-weak: #93A0B4;
            --text-on-dark: #E8ECF3;
            --text-on-dark-muted: #A2B2C7;
            --border-color: #E4E8F0;
            --border-dark: rgba(255, 255, 255, .12);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-sm: 0 4px 16px rgba(11, 18, 32, .05);
            --shadow-hover: 0 12px 28px rgba(11, 18, 32, .1);
            --transition: all 0.25s ease;
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-padding-top: 120px;
        }
        body {
            font-family: var(--font-cn);
            background-color: var(--light-bg);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-block {
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .section-title::before {
            content: "";
            width: 6px;
            height: 24px;
            border-radius: 3px;
            background: var(--primary);
        }
        .section-subtitle {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 640px;
            margin-bottom: 32px;
        }
        .btn-primary-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background-color: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .btn-primary-brand:hover,
        .btn-primary-brand:focus {
            background-color: #00e0a8;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 200, 150, .3);
            color: #fff;
        }
        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background-color: transparent;
            color: #E8ECF3;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, .32);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .btn-outline-brand:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .card-custom {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 200, 150, .3);
        }

        /* ===== 导航 ===== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(11, 18, 32, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .main-header.scrolled {
            box-shadow: 0 4px 18px rgba(0, 0, 0, .4);
        }
        .top-brand-line {
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, #00C896, #7B68EE);
            border-radius: 10px;
            color: #fff;
            font-size: 16px;
            font-weight: 800;
            letter-spacing: 0;
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            white-space: nowrap;
        }
        .brand-sub {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-on-dark-muted);
            letter-spacing: 0.2px;
        }
        .brand-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .hot-keywords {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-on-dark-muted);
        }
        .keyword-link {
            color: rgba(232, 236, 243, .8);
            padding: 3px 10px;
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, .08);
            transition: var(--transition);
        }
        .keyword-link:hover {
            color: var(--primary);
            border-color: rgba(0, 200, 150, .4);
        }
        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            border: none;
            color: #fff;
            font-size: 14px;
            transition: var(--transition);
            cursor: pointer;
        }
        .icon-btn:hover {
            background: rgba(255, 255, 255, .14);
            color: var(--primary);
        }
        .mobile-trigger {
            display: none;
        }
        .channel-nav-row {
            border-top: 1px solid rgba(255, 255, 255, .03);
        }
        .channel-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 0;
        }
        .channel-nav li {
            position: relative;
        }
        .channel-nav li + li {
            margin-left: 0;
        }
        .channel-nav a {
            display: inline-block;
            color: rgba(232, 236, 243, .86);
            font-size: 14px;
            padding: 0 18px;
            height: 42px;
            line-height: 42px;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            font-weight: 400;
        }
        .channel-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .04);
        }
        .channel-nav a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }

        /* ===== 页脚 ===== */
        .main-footer {
            background-color: var(--dark-bg);
            color: var(--text-on-dark);
            padding-top: 70px;
            padding-bottom: 30px;
            margin-top: 0;
        }
        .main-footer h3,
        .main-footer h4,
        .main-footer p {
            color: inherit;
        }
        .footer-top-banner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            padding: 30px 36px;
            margin-bottom: 48px;
            flex-wrap: wrap;
            gap: 20px;
        }
        .footer-top-banner h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .footer-top-banner p {
            font-size: 13px;
            color: var(--text-on-dark-muted);
            margin-bottom: 0;
        }
        .btn-footer-cta {
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            display: inline-block;
            white-space: nowrap;
        }
        .btn-footer-cta:hover {
            background: #00e0a8;
            color: #0B1220;
        }
        .footer-brand-name {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand-name i {
            color: var(--primary);
        }
        .footer-brand-desc {
            font-size: 13px;
            line-height: 1.9;
            color: var(--text-on-dark-muted);
            margin-bottom: 16px;
            max-width: 300px;
        }
        .footer-endpoint {
            font-size: 12px;
            color: rgba(232, 236, 243, .5);
            border: 1px solid rgba(255, 255, 255, .08);
            display: inline-block;
            padding: 4px 12px;
            border-radius: 30px;
            background: rgba(255, 255, 255, .03);
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-menu-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-menu-list li {
            margin-bottom: 10px;
        }
        .footer-menu-list a {
            color: var(--text-on-dark-muted);
            font-size: 13px;
            transition: var(--transition);
            display: inline-block;
        }
        .footer-menu-list a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 22px;
            margin-top: 40px;
            font-size: 13px;
            color: rgba(232, 236, 243, .5);
        }
        .compliance-text {
            color: rgba(232, 236, 243, .35);
            font-size: 12px;
        }
        .channel-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .09);
            color: rgba(232, 236, 243, .7);
            font-size: 13px;
            border-radius: 30px;
            padding: 6px 18px;
            transition: var(--transition);
        }
        .channel-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            background: var(--white);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            font-size: 13px;
            color: var(--text-sub);
        }
        .breadcrumb-wrap a {
            color: var(--text-sub);
        }
        .breadcrumb-wrap a:hover {
            color: var(--primary);
        }
        .breadcrumb-wrap .sep {
            color: var(--text-weak);
            margin: 0 8px;
        }
        .breadcrumb-wrap .current {
            color: var(--text-main);
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, rgba(11, 18, 32, .94) 0%, rgba(11, 18, 32, .78) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 64px 0 58px;
            color: var(--text-on-dark);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .category-hero .badge-category {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 200, 150, .14);
            border: 1px solid rgba(0, 200, 150, .35);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 16px;
            text-transform: none;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .category-hero h1 span {
            color: var(--primary);
        }
        .category-hero .hero-desc {
            font-size: 15px;
            color: var(--text-on-dark-muted);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 20px;
        }
        .brand-chip-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }
        .brand-chip-list .chip {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            color: rgba(232, 236, 243, .8);
            font-size: 12px;
            padding: 5px 14px;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .brand-chip-list .chip i {
            color: var(--primary);
            font-size: 11px;
        }

        /* ===== 品牌动态专题区 ===== */
        .brand-showcase-section {
            background: var(--white);
        }
        .brand-feature-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 24px;
            margin-bottom: 40px;
        }
        .brand-feature-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }
        .brand-feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 200, 150, .35);
        }
        .brand-feature-card .thumb-wrap {
            height: 190px;
            overflow: hidden;
            background: var(--light-bg);
            position: relative;
        }
        .brand-feature-card .thumb-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .brand-feature-card:hover .thumb-wrap img {
            transform: scale(1.04);
        }
        .brand-feature-card .card-body {
            padding: 22px 24px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .brand-feature-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 10px;
        }
        .card-meta .tag {
            background: rgba(123, 104, 238, .12);
            color: var(--secondary);
            font-weight: 600;
            border-radius: 20px;
            padding: 2px 12px;
            font-size: 11px;
        }
        .card-meta .dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: #ccc;
        }
        .brand-feature-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .brand-feature-card p.desc {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 12px;
        }
        .card-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-link i {
            font-size: 12px;
            transition: transform .2s ease;
        }
        .card-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }
        .featured-card {
            grid-row: span 1;
        }
        .featured-card .thumb-wrap {
            height: 220px;
        }
        .featured-card h3 {
            font-size: 20px;
        }
        .featured-card p.desc {
            font-size: 14px;
        }

        /* ===== 品牌时间线 ===== */
        .timeline-section {
            background: var(--light-bg);
        }
        .timeline-grid {
            border-left: 2px solid var(--primary);
            padding-left: 28px;
            margin-left: 6px;
        }
        .timeline-item {
            position: relative;
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 22px 28px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 22px;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: -35px;
            top: 28px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--white);
            box-shadow: 0 0 0 3px rgba(0, 200, 150, .25);
        }
        .timeline-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 200, 150, .1);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            border-radius: 30px;
            padding: 4px 14px;
            margin-bottom: 8px;
        }
        .timeline-item h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .timeline-item p {
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 10px;
            line-height: 1.75;
        }
        .timeline-tag {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .timeline-tag .tag-item {
            font-size: 11px;
            padding: 2px 10px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            color: var(--text-sub);
            background: var(--light-bg);
        }

        /* ===== 中段品牌动态卡片区（差异化布局） ===== */
        .mid-split-section {
            background: var(--white);
        }
        .mid-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .mid-left {
            padding-right: 28px;
            border-right: 1px solid var(--border-color);
        }
        .mid-right {
            padding-left: 20px;
        }
        .section-header-inline {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }
        .section-header-inline h2 {
            font-size: 22px;
            font-weight: 700;
            margin: 0;
            display: flex;
            align-items: center;
        }
        .section-header-inline h2 i {
            color: var(--primary);
            margin-right: 10px;
            font-size: 18px;
        }
        .text-link-button {
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-bottom: 1px solid transparent;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .text-link-button:hover {
            border-bottom-color: var(--primary);
            color: var(--primary-dark);
        }
        .list-card-item {
            display: flex;
            align-items: stretch;
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 16px;
            transition: var(--transition);
        }
        .list-card-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 200, 150, .35);
        }
        .list-card-item .small-thumb {
            flex: 0 0 140px;
            height: auto;
            min-height: 120px;
            overflow: hidden;
            background: var(--light-bg);
        }
        .list-card-item .small-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .list-card-item .item-content {
            padding: 14px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .list-card-item .item-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .list-card-item .item-summary {
            font-size: 12px;
            color: var(--text-sub);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .list-card-item .item-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: auto;
        }
        .date {
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== 服务栏目公告短引（副文案区） ===== */
        .brand-quote-section {
            background: var(--dark-bg);
            padding: 46px 0;
            color: var(--text-on-dark);
        }
        .quote-inner {
            display: grid;
            grid-template-columns: auto 1fr auto;
            gap: 24px;
            align-items: center;
        }
        .quote-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(0, 200, 150, .12);
            border: 1px solid rgba(0, 200, 150, .35);
            color: var(--primary);
            font-size: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .quote-text h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .quote-text p {
            font-size: 13px;
            color: var(--text-on-dark-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== 品牌资源优势（2大1小差异化面积） ===== */
        .resource-section {
            background: var(--light-bg);
        }
        .resource-grid {
            display: grid;
            grid-template-columns: 0.95fr 1.15fr 0.9fr;
            gap: 24px;
        }
        .resource-card {
            background: var(--white);
            border-radius: 16px;
            padding: 32px 32px 36px;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(228, 232, 240, .5);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .resource-card .icon-circle {
            width: 50px;
            height: 50px;
            background: rgba(0, 200, 150, .12);
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 18px;
        }
        .resource-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .resource-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .resource-card .mini-stat {
            display: flex;
            align-items: baseline;
            gap: 4px;
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }
        .mini-stat .num {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            font-family: "Inter", sans-serif;
            letter-spacing: -0.5px;
        }
        .mini-stat .text {
            font-size: 12px;
            color: var(--text-weak);
        }
        .resource-card.accent-card {
            background: linear-gradient(160deg, rgba(123, 104, 238, .06), rgba(0, 200, 150, .05));
            border-color: rgba(123, 104, 238, .22);
        }
        .resource-card.accent-card .icon-circle {
            background: rgba(123, 104, 238, .14);
            color: var(--secondary);
        }
        .resource-card.accent-card .num {
            color: var(--secondary);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--white);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 4fr 8fr;
            gap: 40px;
        }
        .faq-side-content {
            padding-right: 12px;
        }
        .faq-side-content .faq-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .faq-side-content .support-card {
            background: rgba(123, 104, 238, .05);
            border: 1px solid rgba(123, 104, 238, .18);
            border-radius: var(--radius-md);
            padding: 20px 20px;
            margin-top: 16px;
        }
        .support-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .support-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.8;
        }
        .accordion.custom-accordion {
            --bs-accordion-border-color: var(--border-color);
            --bs-accordion-btn-icon: none;
            --bs-accordion-btn-active-icon: none;
            --bs-accordion-btn-focus-box-shadow: none;
            --bs-accordion-border-radius: var(--radius-md);
            --bs-accordion-inner-border-radius: var(--radius-md);
        }
        .accordion.custom-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion.custom-accordion .accordion-item:hover {
            border-left: 3px solid var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .accordion.custom-accordion .accordion-item:has(.show) {
            border-color: rgba(0, 200, 150, .4);
            border-left: 3px solid var(--primary);
        }
        .accordion.custom-accordion .accordion-button {
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            background: var(--white);
            box-shadow: none;
        }
        .accordion.custom-accordion .accordion-button:not(.collapsed) {
            background: rgba(0, 200, 150, .04);
            color: var(--primary-dark);
        }
        .accordion.custom-accordion .accordion-button::after {
            width: 18px;
            height: 18px;
            background: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f054";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: var(--transition);
        }
        .accordion.custom-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(90deg);
            background: none;
            content: "\f054";
            color: var(--primary);
        }
        .accordion.custom-accordion .accordion-body {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            border-top: 1px solid rgba(0, 200, 150, .08);
        }

        /* ===== CTA 横幅 ===== */
        .cta-banner {
            background: linear-gradient(135deg, #0B1220 0%, #101d36 100%);
            padding: 52px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .cta-banner .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .cta-banner .info-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-banner .info-text p {
            color: var(--text-on-dark-muted);
            font-size: 14px;
            margin-bottom: 0;
            max-width: 560px;
        }
        .btn-gradient {
            background: linear-gradient(135deg, var(--primary), #17b8a8);
            border: none;
            color: #fff;
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            display: inline-block;
        }
        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 200, 150, .35);
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media(max-width: 991px) {
            .brand-feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .featured-card {
                grid-column: span 2;
            }
            .resource-grid {
                grid-template-columns: 1fr 1fr;
            }
            .faq-layout {
                grid-template-columns: 1fr;
            }
            .mid-grid {
                grid-template-columns: 1fr;
            }
            .mid-left {
                border-right: none;
                padding-right: 0;
                padding-bottom: 24px;
            }
            .mid-right {
                padding-left: 0;
            }
            .quote-inner {
                grid-template-columns: 1fr;
            }
        }
        @media(max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-block {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-title {
                font-size: 24px;
            }
            .hot-keywords {
                display: none;
            }
            .mobile-trigger {
                display: block;
            }
            .desktop-channel-nav {
                display: none;
            }
            .brand-row {
                height: 54px;
            }
            .channel-nav-right {
                display: none;
            }
            .category-hero {
                padding: 48px 0 40px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .brand-feature-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .featured-card {
                grid-column: span 1;
            }
            .featured-card .thumb-wrap {
                height: 180px;
            }
            .brand-feature-card .thumb-wrap {
                height: 170px;
            }
            .resource-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .list-card-item .small-thumb {
                flex-basis: 100px;
            }
            .footer-top-banner {
                padding: 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .timeline-grid {
                padding-left: 20px;
            }
            .timeline-item {
                padding: 18px 16px;
            }
            .cta-banner .container {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media(max-width: 520px) {
            .brand-sub {
                display: none;
            }
            .brand-text {
                font-size: 14px;
            }
            .section-title {
                font-size: 21px;
            }
            .category-hero h1 {
                font-size: 23px;
            }
            .category-hero .hero-desc {
                font-size: 13px;
                line-height: 1.7;
            }
            .brand-chip-list {
                gap: 6px;
            }
            .brand-chip-list .chip {
                font-size: 11px;
                padding: 4px 10px;
            }
        }

        /* ===== offcanvas 样式微调 ===== */
        .offcanvas-body-custom {
            background: var(--dark-bg);
        }