/* roulang page: index */
:root {
            --primary: #1B6DE0;
            --primary-dark: #1456AE;
            --primary-light: #E6F0FF;
            --amber: #F5A623;
            --amber-dark: #E08E00;
            --green: #2CA88F;
            --ink: #101828;
            --ink-2: #27364B;
            --muted: #66738A;
            --bg: #F6F9FC;
            --card: #FFFFFF;
            --border: #E4EAF2;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(16, 24, 40, .06);
            --shadow-md: 0 6px 20px rgba(16, 24, 40, .04);
            --shadow-hover: 0 12px 28px rgba(16, 24, 40, .12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container-x {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(255, 255, 255, .94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(16, 24, 40, .04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 72px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--ink);
            white-space: nowrap;
            letter-spacing: .2px;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .logo:hover .logo-badge {
            background: var(--primary-dark);
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 4px;
            background: #EEF3FA;
            border-radius: 999px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

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

        .nav-chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 20px;
            border-radius: 999px;
            white-space: nowrap;
            font-size: 15px;
            font-weight: 600;
            color: #3D506C;
            transition: all .18s ease;
            background: transparent;
            border: 1px solid transparent;
            line-height: 1.4;
        }

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

        .nav-chip.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 109, 224, .28);
        }

        .nav-chip.active:hover {
            background: var(--primary-dark);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 999px;
            white-space: nowrap;
            border: none;
            cursor: pointer;
            transition: all .2s ease;
            box-shadow: 0 4px 12px rgba(27, 109, 224, .25);
        }

        .btn-header:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 18px rgba(27, 109, 224, .3);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
            border-radius: 999px;
            font-weight: 600;
            cursor: pointer;
            transition: all .22s ease;
            min-height: 46px;
            padding: 12px 28px;
            font-size: 15px;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(27, 109, 224, .26);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(27, 109, 224, .32);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, .96);
            color: var(--primary-dark);
            border: 1px solid rgba(27, 109, 224, .32);
        }

        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(27, 109, 224, .22);
        }

        .btn-amber {
            background: var(--amber);
            color: #101828;
        }

        .btn-amber:hover {
            background: var(--amber-dark);
            transform: translateY(-2px);
            color: #fff;
            box-shadow: 0 8px 20px rgba(224, 143, 0, .26);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .6);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            white-space: nowrap;
            line-height: 1.5;
        }

        .badge-hot {
            background: #FFF3DF;
            color: #B26C00;
        }

        .badge-green {
            background: #E5F5F1;
            color: #17856E;
        }

        .badge-light {
            background: rgba(255, 255, 255, .18);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .3);
        }

        .hero-zone {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: #0E1D33;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            filter: brightness(.66) saturate(1.1);
            transition: transform 8s ease;
        }

        .hero-zone:hover .hero-bg {
            transform: scale(1.02);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 22, 38, .88) 0%, rgba(11, 22, 38, .62) 40%, rgba(11, 22, 38, .2) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            padding-top: 90px;
            padding-bottom: 90px;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            backdrop-filter: blur(8px);
            border-radius: 999px;
            padding: 7px 16px;
            color: #E3EEFF;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 22px;
        }

        .hero-kicker i {
            color: #F5C56B;
        }

        .hero-title {
            color: #fff;
            font-size: clamp(32px, 4.8vw, 54px);
            line-height: 1.22;
            font-weight: 700;
            letter-spacing: .5px;
            max-width: 700px;
            margin-bottom: 18px;
        }

        .hero-title .accent {
            color: #6FA9FF;
        }

        .hero-subtitle {
            color: rgba(255, 255, 255, .84);
            font-size: clamp(16px, 1.6vw, 19px);
            line-height: 1.8;
            max-width: 580px;
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 34px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            color: rgba(255, 255, 255, .72);
            font-size: 14px;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-meta-item i {
            color: #F5C56B;
        }

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

        .section-pad-sm {
            padding: 56px 0;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
        }

        .section-title {
            font-size: 28px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: .2px;
        }

        .section-title small {
            display: block;
            font-size: 15px;
            color: var(--muted);
            font-weight: 400;
            margin-top: 6px;
            line-height: 1.6;
        }

        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
            white-space: nowrap;
            padding: 9px 16px;
            border-radius: 999px;
            background: var(--primary-light);
            transition: all .2s ease;
        }

        .section-more:hover {
            background: var(--primary);
            color: #fff;
            transform: translateX(2px);
        }

        .accent-card {
            background: #0F2038;
            border-radius: 24px;
            overflow: hidden;
        }

        .stat-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }

        .stat-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all .2s ease;
        }

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

        .stat-icon {
            width: 50px;
            height: 50px;
            flex-shrink: 0;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background: var(--primary-light);
            color: var(--primary);
        }

        .stat-info strong {
            font-size: 26px;
            color: var(--ink);
            display: block;
            line-height: 1.2;
        }

        .stat-info span {
            color: var(--muted);
            font-size: 14px;
        }

        .quickbar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
        }

        .quick-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 10px 19px;
            font-size: 15px;
            font-weight: 600;
            color: #3D506C;
            transition: all .2s ease;
            box-shadow: var(--shadow-sm);
        }

        .quick-link i {
            color: var(--primary);
            font-size: 14px;
        }

        .quick-link:hover {
            border-color: rgba(27, 109, 224, .4);
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding-left: 16px;
            box-shadow: var(--shadow-sm);
            transition: border-color .2s, box-shadow .2s;
            flex: 1;
            min-width: 240px;
            max-width: 440px;
        }

        .search-box:focus-within {
            border-color: rgba(27, 109, 224, .5);
            box-shadow: 0 0 0 4px rgba(27, 109, 224, .12);
        }

        .search-box i {
            color: var(--muted);
            font-size: 15px;
        }

        .search-box input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            padding: 11px 12px;
            min-width: 0;
            font-size: 14px;
            color: var(--ink);
        }

        .search-box input::placeholder {
            color: #8D97AD;
        }

        .search-box button {
            border: none;
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: background .2s;
            margin-right: 4px;
        }

        .search-box button:hover {
            background: var(--primary-dark);
        }

        .hscroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding-bottom: 6px;
        }

        .hscroll::-webkit-scrollbar {
            display: none;
        }

        .hcard {
            flex: 0 0 auto;
            width: min(74vw, 220px);
            scroll-snap-align: start;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform .2s, box-shadow .2s;
        }

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

        .hcard-cover {
            position: relative;
            aspect-ratio: 3 / 4;
            overflow: hidden;
            background: #eef2f8;
        }

        .hcard-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .25s ease;
        }

        .hcard:hover .hcard-cover img {
            transform: scale(1.04);
        }

        .hcard-meta {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }

        .hcard-body {
            padding: 14px 16px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .hcard-body h3 {
            font-size: 16px;
            line-height: 1.55;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 50px;
            transition: color .2s;
        }

        .hcard:hover .hcard-body h3 {
            color: var(--primary);
        }

        .hcard-body p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .rank-main {
            background: #0F1F33;
            border-radius: 24px;
            overflow: hidden;
            position: relative;
            display: flex;
            align-items: flex-end;
            min-height: 420px;
        }

        .rank-main-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            filter: brightness(.5);
        }

        .rank-main-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 34px;
        }

        .rank-main-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: #FFD68A;
            background: rgba(255, 170, 64, .15);
            border: 1px solid rgba(255, 170, 64, .4);
            border-radius: 999px;
            padding: 5px 13px;
            margin-bottom: 14px;
        }

        .rank-main-title {
            font-size: 24px;
            line-height: 1.5;
            font-weight: 700;
            max-width: 540px;
            margin-bottom: 10px;
        }

        .rank-main-desc {
            color: rgba(255, 255, 255, .82);
            font-size: 14px;
            max-width: 520px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .rank-list {
            background: #fff;
            border-radius: 24px;
            border: 1px solid var(--border);
            padding: 12px 12px 4px;
            box-shadow: var(--shadow-sm);
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 10px;
            border-bottom: 1px solid #EDF2F8;
            transition: background .18s;
            border-radius: 14px;
        }

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

        .rank-item:hover {
            background: #F6FAFF;
        }

        .rank-num {
            font-size: 28px;
            line-height: 1;
            font-weight: 800;
            color: #CCD7E5;
            min-width: 38px;
            text-align: center;
            font-style: normal;
        }

        .rank-item:first-child .rank-num {
            color: var(--amber);
        }

        .rank-item:nth-child(2) .rank-num {
            color: #8FB8E8;
        }

        .rank-item:nth-child(3) .rank-num {
            color: #C9AE84;
        }

        .rank-thumb {
            width: 64px;
            height: 64px;
            flex-shrink: 0;
            border-radius: 12px;
            overflow: hidden;
        }

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

        .rank-info {
            flex: 1;
            min-width: 0;
        }

        .rank-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--ink);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 4px;
        }

        .rank-info p {
            font-size: 12px;
            color: var(--muted);
        }

        .rank-score {
            text-align: right;
            flex-shrink: 0;
        }

        .rank-score strong {
            font-size: 18px;
            color: var(--ink);
            display: block;
            line-height: 1.2;
        }

        .rank-score span {
            font-size: 11px;
            color: var(--muted);
        }

        .channel-stack {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .channel-card {
            display: flex;
            flex-direction: column;
            overflow: hidden;
            background: #fff;
            border-radius: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: box-shadow .2s, transform .2s;
        }

        .channel-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .channel-cover {
            flex: 1;
            min-height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .channel-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent, rgba(10, 18, 30, .78));
        }

        .channel-content {
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
        }

        .channel-content h3 {
            font-size: 22px;
            margin-bottom: 8px;
            color: var(--ink);
        }

        .channel-content p {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 18px;
            max-width: 540px;
            line-height: 1.8;
        }

        .news-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }

        .news-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            transition: all .18s ease;
        }

        .news-card:hover {
            border-color: rgba(27, 109, 224, .34);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 4px;
        }

        .news-meta time {
            color: var(--muted);
            font-size: 12px;
        }

        .news-card h3 {
            font-size: 17px;
            color: var(--ink);
            font-weight: 700;
            line-height: 1.55;
            transition: color .2s;
        }

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

        .news-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            border: 1px dashed #CBD9EA;
            border-radius: 20px;
            background: #F1F7FE;
            padding: 50px 24px;
            text-align: center;
            color: var(--muted);
        }

        .news-empty i {
            font-size: 28px;
            color: #9AB7D8;
            margin-bottom: 10px;
        }

        .faq-grid {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 0;
            transition: border-color .2s, box-shadow .2s;
            overflow: hidden;
        }

        .faq-item[open] {
            border-color: rgba(27, 109, 224, .35);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            transition: background .2s;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            background: #FAFCFE;
        }

        .faq-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
            transition: all .2s;
        }

        .faq-item[open] .faq-mark {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            padding: 0 24px 22px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.9;
        }

        .cta-zone {
            background: #0E2038;
            border-radius: 26px;
            color: #fff;
            padding: 56px 32px;
            position: relative;
            overflow: hidden;
        }

        .cta-zone::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center;
            opacity: .22;
        }

        .cta-zone .container-x {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .cta-subtitle {
            color: rgba(255, 255, 255, .8);
            margin-bottom: 28px;
            font-size: 16px;
            max-width: 620px;
        }

        .footer {
            background: #F1F5FB;
            border-top: 1px solid var(--border);
        }

        .footer-main {
            display: flex;
            flex-direction: column;
            gap: 32px;
            padding: 54px 0 36px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 19px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
        }

        .footer-logo .logo-badge {
            width: 30px;
            height: 30px;
            font-size: 15px;
        }

        .footer-desc {
            color: var(--muted);
            font-size: 14px;
            max-width: 380px;
            line-height: 1.8;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: .5px;
            margin-bottom: 14px;
        }

        .footer-link-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-link-list a {
            color: var(--muted);
            font-size: 14px;
            transition: color .2s;
        }

        .footer-link-list a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 18px 0;
            color: var(--muted);
            font-size: 13px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }

        .to-top {
            position: fixed;
            right: 22px;
            bottom: 22px;
            z-index: 60;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 22px rgba(27, 109, 224, .3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            opacity: .8;
            transition: all .2s;
            border: none;
            cursor: pointer;
        }

        .to-top:hover {
            background: var(--primary-dark);
            opacity: 1;
            transform: translateY(-3px);
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        @media (min-width: 640px) {
            .stat-grid {
                grid-template-columns: repeat(4, 1fr);
            }

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

        @media (min-width: 768px) {
            .section-title {
                font-size: 30px;
            }

            .hcard {
                width: 236px;
            }
        }

        @media (min-width: 1024px) {
            .hcard {
                width: 264px;
            }

            .rank-layout {
                grid-template-columns: 1.2fr 1fr;
            }

            .channel-card {
                flex-direction: row;
            }

            .channel-card.rev {
                flex-direction: row-reverse;
            }

            .channel-cover {
                min-height: 270px;
                flex-basis: 42%;
            }

            .channel-content {
                padding: 40px;
                flex-basis: 58%;
            }

            .footer-main {
                flex-direction: row;
                justify-content: space-between;
            }

            .footer-bottom {
                flex-direction: row;
            }
        }

        @media (max-width: 767px) {
            .section-pad {
                padding: 52px 0;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }

            .header-inner {
                flex-wrap: wrap;
                min-height: 0;
                padding-top: 12px;
                padding-bottom: 12px;
            }

            .header-actions {
                margin-left: auto;
            }

            .nav-chips {
                order: 10;
                width: 100%;
                border-radius: 40px;
                padding: 4px 6px;
            }

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

            .btn-header {
                padding: 8px 16px;
                font-size: 13px;
            }

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

        @media (max-width: 520px) {
            .header-actions .btn-header {
                display: none;
            }

            .hero-zone {
                min-height: 70vh;
            }

            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .stat-info strong {
                font-size: 21px;
            }

            .stat-icon {
                width: 42px;
                height: 42px;
                font-size: 18px;
            }

            .channel-content {
                padding: 22px;
            }

            .cta-title {
                font-size: 23px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1B6DE0;
            --primary-hover: #1456AE;
            --primary-light: #E6F0FF;
            --accent: #F5A623;
            --accent-hover: #E08E00;
            --accent-light: #FFF9EB;
            --ink-900: #101828;
            --ink-700: #27364B;
            --ink-500: #66738A;
            --surface: #F6F9FC;
            --white: #FFFFFF;
            --shallow: #EBF2FA;
            --border: #E4EAF2;
            --success: #2CA88F;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 2px 10px rgba(16,24,40,.06), 0 6px 20px rgba(16,24,40,.04);
            --shadow-hover: 0 8px 30px rgba(16,24,40,.12), 0 4px 12px rgba(16,24,40,.08);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
            background-color: var(--surface);
            color: var(--ink-700);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        * {
            box-sizing: border-box;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-x {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .container-narrow {
            max-width: 860px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* Header */
        .site-header {
            background: rgba(246, 249, 252, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-badge {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #1B6DE0, #4A90E8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(27, 109, 224, .25);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--ink-900);
            letter-spacing: -.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-500);
            background: transparent;
            border: 1px solid transparent;
            transition: all .2s;
            white-space: nowrap;
        }
        .nav-chip:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-chip.active {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(27, 109, 224, .2);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 9px 22px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all .25s;
            box-shadow: 0 4px 14px rgba(27, 109, 224, .25);
        }
        .btn-header:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(27, 109, 224, .3);
        }
        .btn-header:focus,
        .btn-header:focus-visible {
            outline: none;
            box-shadow: var(--shadow-ring);
        }
        /* Footer */
        .footer {
            background: var(--ink-900);
            color: #9AA7B8;
            padding-top: 80px;
            padding-bottom: 28px;
            margin-top: 0;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #E8EEF4;
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #8A97A6;
            max-width: 380px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #E8EEF4;
            margin-bottom: 18px;
            position: relative;
        }
        .footer-link-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-link-list a {
            font-size: 14px;
            color: #9AA7B8;
            transition: color .2s;
        }
        .footer-link-list a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            font-size: 13px;
            color: #778497;
        }
        .footer-bottom::before {
            display: none;
        }
        @media (max-width: 768px) {
            .header-inner {
                height: auto;
                flex-wrap: wrap;
                padding-top: 12px;
                padding-bottom: 12px;
                gap: 12px;
            }
            .nav-chips {
                order: 3;
                width: 100%;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                padding-bottom: 4px;
            }
            .nav-chips::-webkit-scrollbar {
                display: none;
            }
            .logo {
                flex: 1;
            }
            .header-actions .btn-header {
                padding: 8px 16px;
                font-size: 13px;
            }
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-main>div:first-child {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 560px) {
            .container-x {
                padding-left: 16px;
                padding-right: 16px;
            }
            .footer-main {
                grid-template-columns: 1fr;
            }
        }
        /* Article page specific */
        .article-backdrop {
            position: relative;
            background: linear-gradient(to bottom, rgba(246,249,252,0), rgba(246,249,252,1)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding-top: 48px;
            padding-bottom: 0;
            overflow: hidden;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--ink-500);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a {
            color: var(--ink-500);
            transition: color .2s;
        }
        .article-breadcrumb a:hover {
            color: var(--primary);
        }
        .article-breadcrumb .separator {
            color: #C1CBD6;
            font-size: 12px;
        }
        .article-breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        .article-card-hero {
            background: var(--white);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: 48px 32px 40px;
            position: relative;
            overflow: hidden;
        }
        .article-card-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), #4A90E8, var(--accent));
        }
        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .article-h1 {
            font-size: 32px;
            line-height: 1.35;
            color: var(--ink-900);
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: -.3px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--ink-500);
            font-size: 13px;
            border-top: 1px solid var(--border);
            padding-top: 20px;
        }
        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta-item i {
            color: var(--primary);
            font-size: 14px;
        }
        .article-main-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            padding: 48px 0 80px;
        }
        .article-body-wrap {
            background: var(--white);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: 40px 48px;
        }
        .article-body-content {
            font-size: 16px;
            line-height: 2;
            color: var(--ink-700);
        }
        .article-body-content p {
            margin-bottom: 1.4em;
        }
        .article-body-content h2 {
            font-size: 24px;
            color: var(--ink-900);
            font-weight: 700;
            margin: 1.8em 0 .8em;
            letter-spacing: -.3px;
            line-height: 1.4;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            border-radius: 2px;
        }
        .article-body-content h3 {
            font-size: 19px;
            color: var(--ink-900);
            font-weight: 700;
            margin: 1.6em 0 .6em;
        }
        .article-body-content img {
            border-radius: 14px;
            margin: 28px 0;
            box-shadow: var(--shadow-card);
        }
        .article-body-content blockquote {
            background: var(--primary-light);
            border-radius: 12px;
            padding: 20px 24px;
            margin: 24px 0;
            color: var(--ink-700);
            border-left: 4px solid var(--primary);
            font-size: 15px;
        }
        .article-body-content ul,
        .article-body-content ol {
            padding-left: 1.5em;
            margin-bottom: 1.4em;
        }
        .article-body-content li {
            margin-bottom: .5em;
        }
        .article-body-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(27,109,224,.3);
            transition: border-color .2s;
        }
        .article-body-content a:hover {
            border-bottom-color: var(--primary);
        }
        .article-cover-img {
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-card);
        }
        .article-cover-img img {
            width: 100%;
            object-fit: cover;
            max-height: 420px;
        }
        .article-divider {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            padding: 28px 0;
            color: #C1CBD6;
            font-size: 12px;
        }
        .article-divider::before,
        .article-divider::after {
            content: '';
            height: 1px;
            width: 80px;
            background: var(--border);
        }
        .article-bottom-actions {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            margin-top: 32px;
            border-top: 1px solid var(--border);
            padding-top: 28px;
        }
        .btn-prev-next {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--shallow);
            color: var(--ink-700);
            font-size: 14px;
            font-weight: 500;
            padding: 10px 20px;
            border-radius: 999px;
            transition: all .25s;
            border: 1px solid transparent;
        }
        .btn-prev-next:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(27,109,224,.15);
        }
        .btn-prev-next.btn-filled {
            background: var(--primary);
            color: #fff;
        }
        .btn-prev-next.btn-filled:hover {
            background: var(--primary-hover);
            color: #fff;
        }
        .related-section {
            background: var(--surface);
            padding: 64px 0 80px;
        }
        .related-section .related-title-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }
        .related-title-wrap h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--ink-900);
            letter-spacing: -.3px;
        }
        .related-title-wrap .more-link {
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s;
        }
        .related-title-wrap .more-link:hover {
            gap: 10px;
        }
        .related-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all .25s;
            border: 1px solid transparent;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .related-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.05);
        }
        .related-card-content {
            padding: 20px;
        }
        .related-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink-900);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-meta {
            font-size: 12px;
            color: var(--ink-500);
            display: flex;
            gap: 12px;
            margin-top: 10px;
        }
        .related-card-tag {
            font-size: 12px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 10px;
            border-radius: 999px;
            display: inline-block;
            margin-bottom: 8px;
            font-weight: 500;
        }
        .empty-state {
            text-align: center;
            padding: 80px 24px;
            color: var(--ink-500);
        }
        .empty-state i {
            font-size: 48px;
            color: #C1CBD6;
            margin-bottom: 16px;
        }
        .empty-state p {
            font-size: 16px;
        }
        .article-faq {
            background: var(--surface);
            padding: 80px 0;
        }
        .article-faq .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item-card {
            background: var(--white);
            border-radius: 14px;
            padding: 22px 28px;
            box-shadow: var(--shadow-card);
            border-left: 3px solid var(--primary);
            transition: box-shadow .2s;
        }
        .faq-item-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-q {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink-900);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-q i {
            color: var(--primary);
            width: 20px;
            text-align: center;
        }
        .faq-a {
            font-size: 14px;
            color: var(--ink-500);
            line-height: 1.8;
            padding-left: 30px;
        }
        @media (max-width: 900px) {
            .related-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .article-card-hero {
                padding: 32px 20px 28px;
            }
            .article-h1 {
                font-size: 24px;
            }
            .article-body-wrap {
                padding: 28px 20px;
            }
            .article-body-content {
                font-size: 15px;
            }
            .related-cards {
                grid-template-columns: 1fr;
            }
            .container-narrow {
                padding-left: 16px;
                padding-right: 16px;
            }
            .related-title-wrap {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }
        .article-more-section {
            background: linear-gradient(135deg, #1B6DE0 0%, #1456AE 60%, #123F7A 100%);
            border-radius: 24px;
            padding: 48px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            margin-top: 0;
        }
        .article-more-section h2 {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }
        .article-more-section p {
            font-size: 15px;
            color: rgba(255,255,255,.8);
        }
        .article-more-section .btn-more {
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: all .25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .article-more-section .btn-more:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

/* roulang page: category1 */
:root {
            --primary: #1B6DE0;
            --primary-hover: #1456AE;
            --primary-soft: #E6F0FF;
            --ink: #101828;
            --ink-2: #27364B;
            --gray-text: #66738A;
            --bg: #F6F9FC;
            --surface: #FFFFFF;
            --blue-bg: #EBF2FA;
            --accent: #F5A623;
            --accent-hover: #E08E00;
            --border: #E4EAF2;
            --green: #2CA88F;
            --radius-lg: 16px;
            --radius-md: 10px;
            --shadow-1: 0 2px 10px rgba(16,24,40,.06), 0 6px 20px rgba(16,24,40,.04);
            --shadow-hover: 0 6px 18px rgba(16,24,40,.1), 0 14px 34px rgba(16,24,40,.08);
        }
        html { box-sizing: border-box; scroll-behavior: smooth; }
        *, *:before, *:after { box-sizing: inherit; }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; }
        button, input, select, textarea { font: inherit; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; margin: 0; font-weight: 700; }
        p { margin: 0; }
        ul, ol { margin: 0; padding: 0; list-style: none; }
        :focus-visible { outline: 3px solid rgba(27,109,224,.45); outline-offset: 3px; border-radius: 6px; }
        .container-x {
            width: 100%;
            max-width: 1280px;
            margin-inline: auto;
            padding-inline: 24px;
        }
        .section-pad { padding-top: clamp(60px, 8vw, 96px); padding-bottom: clamp(48px, 6vw, 88px); }

        /* header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(255,255,255,.6);
        }
        .header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 8px 22px;
            min-height: 72px;
            padding-top: 10px;
            padding-bottom: 10px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: .01em;
            color: var(--ink);
            white-space: nowrap;
        }
        .logo-badge {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border-radius: 12px;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 4px 10px rgba(27,109,224,.28);
        }
        .logo-text span[style] { color: var(--primary); }
        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            max-width: 100%;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 17px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: #4A5E78;
            background: #F0F4F9;
            border: 1px solid transparent;
            transition: .2s ease;
            white-space: nowrap;
        }
        .nav-chip:hover { background: var(--primary-soft); color: var(--primary); }
        .nav-chip.active {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: rgba(27,109,224,.22);
        }
        .header-actions { display: flex; align-items: center; gap: 10px; }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 42px;
            padding: 0 18px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: .2s ease;
            box-shadow: 0 4px 12px rgba(27,109,224,.2);
        }
        .btn-header:hover { background: var(--primary-hover); transform: translateY(-1px); }
        @media (max-width: 1023px) {
            .nav-chips {
                order: 3;
                width: 100%;
                padding-bottom: 4px;
                overflow-x: auto;
                scrollbar-width: none;
                -webkit-overflow-scrolling: touch;
            }
            .nav-chips::-webkit-scrollbar { display: none; }
        }
        @media (max-width: 480px) {
            .container-x { padding-inline: 16px; }
            .header-inner { gap: 6px 12px; }
            .logo { font-size: 18px; gap: 8px; }
            .btn-header { padding: 0 12px; gap: 6px; }
        }

        /* buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 600;
            transition: all .2s ease;
            cursor: pointer;
            min-height: 44px;
            padding: 0 22px;
            border: 1px solid transparent;
        }
        .btn-lg { min-height: 50px; padding: 0 30px; font-size: 16px; }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(27,109,224,.24); }
        .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 10px 20px rgba(27,109,224,.3); }
        .btn-secondary { background: #fff; color: var(--primary); border-color: rgba(27,109,224,.4); }
        .btn-secondary:hover { background: var(--primary-soft); border-color: var(--primary); transform: translateY(-2px); }
        .btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.75); }
        .btn-ghost-light:hover { background: rgba(255,255,255,.14); border-color: #fff; transform: translateY(-2px); }
        .btn-accent { background: var(--accent); color: #1d242f; box-shadow: 0 6px 16px rgba(245,166,35,.24); }
        .btn-accent:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); }

        /* section titles */
        .section-head {
            max-width: 780px;
            margin-bottom: 34px;
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            background: var(--primary-soft);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 700;
        }
        .section-title { font-size: clamp(26px, 4vw, 34px); letter-spacing: -.01em; color: var(--ink); margin: 18px 0 10px; }
        .section-sub { color: var(--gray-text); font-size: 16px; line-height: 1.8; }

        /* hero */
        .hero-banner {
            position: relative;
            color: #fff;
            overflow: hidden;
            background:
                linear-gradient(100deg, rgba(7, 23, 45, .92) 0%, rgba(15, 48, 90, .78) 50%, rgba(16, 46, 86, .45) 100%),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: min(82vh, 760px);
            display: flex;
            align-items: center;
            padding-top: 88px;
            padding-bottom: 68px;
        }
        .hero-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            gap: 42px;
            align-items: center;
        }
        @media (min-width: 1280px) {
            .hero-grid { grid-template-columns: minmax(0, 1fr) 360px; }
        }
        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255,255,255,.18);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            color: #E2EBFF;
            backdrop-filter: blur(8px);
        }
        .hero-kicker i { color: #FCD34D; }
        .hero-title {
            font-size: clamp(34px, 5vw, 56px);
            line-height: 1.15;
            margin-top: 22px;
            max-width: 760px;
            color: #fff;
            letter-spacing: -.02em;
        }
        .hero-title em { color: #7FB0F8; font-style: normal; }
        .hero-title .hl { color: #FFC978; }
        .hero-desc {
            max-width: 690px;
            margin-top: 20px;
            color: rgba(237, 246, 255, .9);
            font-size: 17px;
            line-height: 1.9;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 26px;
        }
        .hero-meta li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,.1);
            border: 1px solid rgba(255,255,255,.14);
            border-radius: 999px;
            padding: 7px 15px;
            font-size: 13px;
        }
        .hero-meta i { color: #B9D2FF; }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 34px;
        }
        .hero-poster {
            display: none;
            border-radius: 22px;
            overflow: hidden;
            box-shadow: 0 26px 60px rgba(0, 0, 0, .45);
            background: #fff;
            transform: rotate(1.2deg);
            border: 1px solid rgba(255,255,255,.4);
        }
        .hero-poster img { aspect-ratio: 4 / 3; width: 100%; object-fit: cover; }
        .hero-poster-body { padding: 18px 20px; background: #fff; color: var(--ink); }
        .hero-poster-body strong { display: block; color: var(--primary); font-size: 17px; }
        .hero-poster-body p { color: var(--gray-text); font-size: 13px; line-height: 1.6; margin-top: 4px; }
        @media (min-width: 1280px) { .hero-poster { display: block; } }

        /* minor banner */
        .channel-band {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 6px rgba(16,24,40,.03);
        }
        .channel-tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 16px;
            align-items: center;
            padding: 18px 0;
        }
        .channel-tags-row.desc { color: var(--gray-text); font-size: 14px; display: inline-flex; gap: 8px; font-weight: 600; }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-radius: 999px;
            background: #F2F6FC;
            border: 1px solid var(--border);
            color: #47566B;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 600;
            transition: all .2s ease;
        }
        .tag-pill i { color: var(--green); }
        .tag-pill:hover { background: var(--primary-soft); color: var(--primary); border-color: rgba(27,109,224,.25); }

        /* feature modules */
        .section-surface { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
        .module-box {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-1);
            overflow: hidden;
            transition: var(--transition-default, .2s ease);
        }
        .module-giant {
            position: relative;
            min-height: 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            align-items: flex-end;
            color: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-1);
        }
        .module-giant img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
        .module-giant-overlay {
            position: relative;
            width: 100%;
            padding: 34px;
            background: linear-gradient(180deg, transparent 0%, rgba(11, 24, 42, .12) 20%, rgba(10, 22, 40, .9) 100%);
        }
        .module-giant-tag {
            display: inline-block;
            background: rgba(255,255,255,.16);
            border: 1px solid rgba(255,255,255,.25);
            padding: 5px 12px;
            border-radius: 999px;
            font-size: 13px;
            margin-bottom: 10px;
        }
        .module-giant h3 { font-size: 25px; line-height: 1.3; }
        .module-giant p { color: rgba(255,255,255,.88); font-size: 15px; max-width: 460px; margin-top: 8px; line-height: 1.7; }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px;
            box-shadow: var(--shadow-1);
            transition: transform .2s ease, box-shadow .2s ease;
        }
        .feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
        .feature-icon {
            width: 46px;
            height: 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 16px;
        }
        .feature-card h3 { font-size: 19px; color: var(--ink); }
        .feature-card p { font-size: 15px; color: var(--gray-text); margin-top: 8px; line-height: 1.8; }
        .feature-note {
            border-left: 4px solid var(--accent);
            background: #FFFBF2;
            border-radius: 0 14px 14px 0;
            padding: 14px 18px;
            font-size: 14px;
            color: #5B4A2D;
            margin-top: 18px;
        }

        /* ranking visual */
        .rank-list-item {
            display: grid;
            grid-template-columns: 54px 72px minmax(0, 1fr) auto;
            gap: 16px;
            align-items: center;
            padding: 16px 6px;
            border-bottom: 1px dashed var(--border);
        }
        .rank-num { font-size: 28px; font-weight: 800; line-height: 1; color: #B7C4D6; font-family: Georgia, "Times New Roman", serif; }
        .rank-list-item:first-child .rank-num { color: var(--accent); }
        .rank-list-item:nth-child(2) .rank-num { color: #6B9AE9; }
        .rank-thumb { width: 72px; height: 52px; object-fit: cover; border-radius: 10px; }
        .rank-name { font-weight: 700; color: var(--ink); }
        .rank-desc { color: var(--gray-text); font-size: 13px; margin-top: 3px; line-height: 1.5; }
        .rank-tag { display: inline-block; background: var(--primary-soft); color: var(--primary); font-size: 12px; border-radius: 999px; padding: 3px 10px; }
        @media (max-width: 640px) {
            .rank-list-item { grid-template-columns: 38px 58px minmax(0, 1fr); }
            .rank-thumb { width: 58px; height: 48px; }
            .rank-tag { display: none; }
        }

        /* news style */
        .update-panel {
            border-radius: var(--radius-lg);
            background: var(--surface);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-1);
        }
        .update-head {
            background: linear-gradient(110deg, #101F38 0%, #18304F 100%);
            color: #fff;
            padding: 26px 28px;
        }
        .update-head .eyebrow { color: #F5B84B; font-size: 13px; font-weight: 700; letter-spacing: .1em; }
        .update-head h3 { font-size: 24px; margin-top: 6px; }
        .update-item {
            display: flex;
            gap: 14px;
            padding: 18px 22px;
            border-top: 1px solid var(--border);
            transition: .2s ease;
        }
        .update-item:hover { background: #F8FBFE; }
        .update-item i { color: var(--primary); margin-top: 4px; }
        .update-item strong { display: block; font-size: 16px; color: var(--ink); }
        .update-item span { font-size: 14px; color: var(--gray-text); line-height: 1.6; }

        /* process step */
        .step-row {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 16px;
            counter-reset: step;
        }
        .step-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            position: relative;
            box-shadow: var(--shadow-1);
        }
        .step-card:before {
            counter-increment: step;
            content: counter(step, decimal-leading-zero);
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            opacity: .25;
            line-height: 1;
            position: absolute;
            right: 18px;
            top: 18px;
            font-family: Georgia, serif;
        }
        .step-card h3 { font-size: 18px; margin-top: 10px; }
        .step-card p { font-size: 14px; color: var(--gray-text); margin-top: 6px; line-height: 1.7; }
        @media (max-width: 1023px) {
            .step-row { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 560px) {
            .step-row { grid-template-columns: 1fr; }
        }

        /* faq */
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 2px 6px rgba(16,24,40,.03);
            transition: border .2s ease, box-shadow .2s ease;
        }
        .faq-item.open { border-color: rgba(27,109,224,.35); box-shadow: 0 8px 18px rgba(16,24,40,.06); }
        .faq-q {
            display: flex;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            text-align: left;
            background: transparent;
            border: 0;
            color: var(--ink);
            font-size: 16px;
            font-weight: 600;
            padding: 19px 22px;
            cursor: pointer;
        }
        .faq-q .q-icon {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex: 0 0 26px;
            font-weight: 800;
        }
        .faq-q .arrow { transition: transform .2s ease; color: var(--primary); font-size: 14px; }
        .faq-open { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
        .faq-open-inner { padding: 0 22px 20px 60px; color: var(--gray-text); font-size: 15px; line-height: 1.9; }

        /* cta */
        .cta-banner {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            color: #fff;
            background:
                linear-gradient(95deg, rgba(17, 57, 104, .95) 0%, rgba(12, 40, 78, .86) 60%, rgba(9, 30, 60, .72)),
                url('/assets/images/backpic/back-3.webp') center/cover;
            background-size: cover;
            padding: clamp(42px, 7vw, 80px) clamp(24px, 6vw, 84px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 26px;
            flex-wrap: wrap;
            box-shadow: 0 22px 50px rgba(9, 33, 60, .3);
        }
        .cta-copy h2 { font-size: clamp(24px, 4vw, 36px); line-height: 1.25; }
        .cta-copy p { color: rgba(255,255,255,.86); margin-top: 10px; max-width: 640px; line-height: 1.8; font-size: 16px; }
        .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

        /* footer */
        .footer {
            background: #0D1B2C;
            color: #C7D2DF;
            padding-top: 64px;
            margin-top: 20px;
        }
        .footer-main {
            display: grid;
            grid-template-columns: minmax(0, 1.5fr) minmax(200px, .6fr) minmax(200px, .7fr);
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
        }
        .footer-desc {
            font-size: 14px;
            color: #98A8BA;
            line-height: 1.8;
            margin-top: 16px;
            max-width: 440px;
        }
        .footer-col-title {
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 16px;
        }
        .footer-link-list { display: flex; flex-direction: column; gap: 10px; }
        .footer-link-list a { color: #98A8BA; font-size: 14px; transition: .2s ease; }
        .footer-link-list a:hover { color: #58A6FF; padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid #253A52;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding: 22px 0 30px;
            font-size: 13px;
            color: #7E91A5;
        }
        @media (max-width: 1023px) {
            .footer-main { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media (max-width: 640px) {
            .footer-main { grid-template-columns: 1fr; }
            .cta-banner { flex-direction: column; align-items: flex-start; }
        }

        /* reduced weirdness */
        .muted-note { color: var(--gray-text); font-size: 14px; }
        .safe-icon { width: 46px; height: 46px; flex: 0 0 46px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center; background: var(--blue-bg); color: var(--primary); font-size: 18px; }

/* roulang page: category2 */
:root {
            --primary: #1B6DE0;
            --primary-dark: #1456AE;
            --primary-soft: #E6F0FF;
            --accent: #F5A623;
            --accent-dark: #E08E00;
            --text: #101828;
            --text-mid: #66738A;
            --text-light: #8A97AC;
            --page-bg: #F6F9FC;
            --panel: #FFFFFF;
            --section-bg: #EBF2FA;
            --border: #E4EAF2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 10px rgba(16, 24, 40, .06);
            --shadow-md: 0 6px 20px rgba(16, 24, 40, .05);
            --shadow-hover: 0 8px 20px rgba(16, 24, 40, .12);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            background: var(--page-bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container-x {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding-top: 76px;
            padding-bottom: 76px;
        }

        @media (max-width: 767px) {
            .section {
                padding-top: 52px;
                padding-bottom: 52px;
            }
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin: 0 0 8px;
        }

        @media (max-width: 767px) {
            .section-title {
                font-size: 21px;
            }
        }

        .section-sub {
            color: var(--text-mid);
            font-size: 15px;
            max-width: 620px;
            margin: 0;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .eyebrow i {
            font-size: 12px;
        }

        .section-head {
            margin-bottom: 34px;
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 767px) {
            .section-head {
                align-items: flex-start;
                flex-direction: column;
                gap: 10px;
            }
        }

        .text-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            transition: color .2s;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            min-height: 70px;
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            line-height: 1.2;
            white-space: nowrap;
            color: var(--text);
        }

        .logo-badge {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(145deg, #256EEE 0%, #0F4FAA 100%);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            box-shadow: 0 4px 12px rgba(27, 109, 224, .25);
        }

        .logo-text {
            font-weight: 800;
            font-size: 20px;
            color: #101828;
            letter-spacing: -.02em;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-chips {
            display: flex;
            align-items: center;
            gap: 4px;
            background: #EDF3FA;
            border-radius: 999px;
            padding: 5px;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #425066;
            transition: all .18s ease;
            white-space: nowrap;
            cursor: pointer;
        }

        .nav-chip:hover {
            color: var(--primary);
            background: rgba(255, 255, 255, .5);
        }

        .nav-chip.active {
            color: var(--primary);
            background: #fff;
            box-shadow: 0 2px 8px rgba(16, 24, 40, .08);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 22px;
            transition: all .18s;
            box-shadow: 0 4px 14px rgba(27, 109, 224, .2);
        }

        .btn-header:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            color: #fff;
        }

        @media (max-width: 1023px) {
            .header-inner {
                flex-wrap: wrap;
                row-gap: 8px;
                padding-top: 12px;
            }

            .logo {
                font-size: 18px;
            }

            .logo-badge {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }

            .logo-text {
                font-size: 17px;
            }

            .nav-chips {
                order: 3;
                width: 100%;
                overflow-x: auto;
                scrollbar-width: none;
                padding: 5px;
                border-radius: 999px;
            }

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

            .nav-chip {
                padding: 7px 15px;
                font-size: 13px;
            }

            .btn-header {
                padding: 8px 16px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container-x {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-inner {
                gap: 8px;
            }

            .btn-header i {
                display: none;
            }
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            min-height: 540px;
            color: #fff;
            background: #172033;
            padding: 100px 0 72px;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: .55;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(9, 20, 38, .86) 0%, rgba(9, 20, 38, .62) 60%, rgba(9, 20, 38, .26) 100%);
        }

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

        .hero-content {
            max-width: 880px;
        }

        .hero-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(255, 255, 255, .15);
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            backdrop-filter: blur(6px);
        }

        .category-hero h1 {
            font-size: clamp(30px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -.02em;
            margin: 0 0 18px;
            max-width: 780px;
        }

        .category-hero h1 strong {
            color: #FFB84D;
        }

        .category-hero p {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .85);
            max-width: 680px;
            margin: 0 0 26px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 34px;
        }

        .btn-primary,
        .btn-secondary {
            min-height: 46px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 26px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            transition: all .18s;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(27, 109, 224, .3);
        }

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

        .btn-secondary {
            background: rgba(255, 255, 255, .15);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .4);
            backdrop-filter: blur(6px);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, .25);
            color: #fff;
            border-color: rgba(255, 255, 255, .7);
            transform: translateY(-1px);
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .hero-metrics li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .82);
            font-size: 13px;
        }

        .hero-metrics li strong {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
        }

        .hero-metrics li i {
            color: #FFB84D;
        }

        @media (max-width: 767px) {
            .category-hero {
                min-height: 460px;
                padding: 58px 0 50px;
            }

            .category-hero p {
                font-size: 15px;
                line-height: 1.8;
            }

            .hero-metrics {
                gap: 16px;
            }

            .hero-metrics li strong {
                font-size: 18px;
            }
        }

        /* ===== Review topic panels ===== */
        .topic-panel {
            display: flex;
            flex-direction: column;
            height: 100%;
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .2s, box-shadow .2s, border-color .2s;
        }

        .topic-panel:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: #CBDDF5;
        }

        .topic-panel .topic-media {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
            background: #DCE7F3;
        }

        .topic-panel .topic-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .25s;
        }

        .topic-panel:hover .topic-media img {
            transform: scale(1.04);
        }

        .topic-panel .topic-body {
            padding: 24px 24px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .topic-body h3 {
            font-size: 20px;
            font-weight: 800;
            line-height: 1.4;
            margin: 6px 0 10px;
        }

        .topic-body p {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.8;
            margin: 0 0 16px;
            flex: 1;
        }

        .mini-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            align-self: flex-start;
            background: rgba(245, 166, 35, .14);
            color: #C77500;
            border-radius: 999px;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
        }

        .topic-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
        }

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

        /* ===== Picks ===== */
        .section-picks {
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .pick-main-card {
            position: relative;
            height: 100%;
            min-height: 380px;
            border-radius: 18px;
            overflow: hidden;
            display: flex;
            align-items: flex-end;
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }

        .pick-main-card .pick-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            transition: transform .4s;
        }

        .pick-main-card:hover .pick-bg {
            transform: scale(1.04);
        }

        .pick-main-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 15, 30, 0) 30%, rgba(8, 15, 30, .9) 92%);
        }

        .pick-main-content {
            position: relative;
            z-index: 2;
            color: #fff;
        }

        .pick-main-content .pick-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #402800;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 10px;
            margin-bottom: 10px;
        }

        .pick-main-content h3 {
            font-size: 22px;
            font-weight: 800;
            line-height: 1.4;
            margin: 0 0 8px;
        }

        .pick-main-content p {
            color: rgba(255, 255, 255, .8);
            font-size: 14px;
            margin: 0;
            line-height: 1.8;
            max-width: 520px;
        }

        .pick-side-card {
            background: var(--page-bg);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 22px;
            display: flex;
            gap: 16px;
            align-items: center;
            height: 100%;
            transition: box-shadow .2s, transform .2s, border-color .2s;
        }

        .pick-side-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #CBDDF5;
        }

        .pick-side-card .pick-thumb {
            flex: 0 0 136px;
            height: 96px;
            border-radius: 13px;
            overflow: hidden;
            background: #E0EAF4;
        }

        .pick-side-card .pick-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .pick-side-card h4 {
            font-size: 16px;
            font-weight: 800;
            line-height: 1.45;
            margin: 0 0 8px;
        }

        .pick-side-card p {
            color: var(--text-mid);
            font-size: 13px;
            line-height: 1.7;
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .pick-rate {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: #C77500;
            font-size: 13px;
            font-weight: 700;
        }

        .pick-rate i {
            font-size: 12px;
        }

        @media (max-width: 640px) {
            .pick-main-card {
                padding: 22px;
                min-height: 330px;
            }

            .pick-side-card {
                align-items: flex-start;
                flex-wrap: wrap;
            }

            .pick-side-card .pick-thumb {
                width: 100%;
                flex-basis: 100%;
                height: 160px;
            }
        }

        /* ===== Review criteria ===== */
        .criteria-box {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 24px;
            height: 100%;
            transition: box-shadow .2s, border-color .2s;
            position: relative;
            overflow: hidden;
        }

        .criteria-box:hover {
            border-color: #C2D9F4;
            box-shadow: var(--shadow-sm);
        }

        .criteria-num {
            color: var(--primary-soft);
            font-size: 32px;
            font-weight: 800;
            line-height: 1;
            position: absolute;
            right: 18px;
            top: 12px;
        }

        .criteria-box .crit-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 16px;
            margin-bottom: 14px;
        }

        .criteria-box h3 {
            font-size: 17px;
            font-weight: 800;
            margin: 0 0 8px;
        }

        .criteria-box p {
            color: var(--text-mid);
            font-size: 13px;
            line-height: 1.8;
            margin: 0;
        }

        /* ===== Ranking ===== */
        .section-ranking {
            background: radial-gradient(1000px 300px at 10% -10%, rgba(27, 109, 224, .08), transparent 60%), var(--page-bg);
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rank-row {
            display: grid;
            grid-template-columns: 60px 132px 1fr auto;
            gap: 18px;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 12px 16px;
            transition: box-shadow .2s, transform .2s, border-color .2s;
        }

        .rank-row:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: #CBDDF5;
        }

        .rank-num {
            font-size: 30px;
            font-weight: 800;
            color: #E2E9F2;
            text-align: center;
            line-height: 1;
            font-variant-numeric: tabular-nums;
        }

        .rank-row:nth-child(1) .rank-num {
            color: #F5A623;
        }

        .rank-row:nth-child(2) .rank-num {
            color: #719BAE;
        }

        .rank-row:nth-child(3) .rank-num {
            color: #BF907C;
        }

        .rank-thumb {
            width: 132px;
            height: 86px;
            border-radius: 12px;
            overflow: hidden;
            background: #DCE7F3;
        }

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

        .rank-info h4 {
            margin: 0 0 4px;
            font-size: 16px;
            font-weight: 800;
            line-height: 1.45;
        }

        .rank-info p {
            margin: 0;
            color: var(--text-mid);
            font-size: 13px;
            line-height: 1.7;
            max-width: 620px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .rank-hot {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            background: rgba(245, 166, 35, .14);
            color: #B26A00;
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 700;
            white-space: nowrap;
        }

        .rank-hot i {
            color: #F5A623;
        }

        @media (max-width: 640px) {
            .rank-row {
                grid-template-columns: 38px 94px 1fr;
                gap: 12px;
                padding: 10px 10px;
            }

            .rank-num {
                font-size: 22px;
            }

            .rank-thumb {
                width: 94px;
                height: 68px;
            }

            .rank-info h4 {
                font-size: 14px;
            }

            .rank-hot {
                grid-column: 2 / 4;
                width: max-content;
                margin-left: auto;
                padding: 3px 10px;
                font-size: 12px;
            }
        }

        /* ===== Review method ===== */
        .section-method {
            background: var(--primary);
            background: linear-gradient(135deg, #164FA6 0%, #1B6DE0 56%, #3D84E8 100%);
            color: #fff;
        }

        .section-method .section-title,
        .section-method .section-sub {
            color: #fff;
        }

        .method-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }

        .method-step {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 16px;
            padding: 24px 20px 22px;
            backdrop-filter: blur(8px);
            transition: transform .2s, background .2s;
        }

        .method-step:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-3px);
        }

        .method-step .step-no {
            font-size: 24px;
            font-weight: 800;
            opacity: .65;
            margin-bottom: 10px;
            display: block;
        }

        .method-step .step-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: #fff;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
        }

        .method-step h3 {
            font-size: 16px;
            margin: 0 0 8px;
            font-weight: 800;
        }

        .method-step p {
            margin: 0;
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
        }

        @media (max-width: 1023px) {
            .method-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 560px) {
            .method-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== News / List ===== */
        .section-news {
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--page-bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: box-shadow .2s, transform .2s;
        }

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

        .news-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #DCE7F3;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .25s;
        }

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

        .news-body {
            padding: 18px 18px 16px;
            display: flex;
            flex: 1;
            flex-direction: column;
        }

        .news-type {
            display: inline-flex;
            align-self: flex-start;
            color: var(--primary);
            background: var(--primary-soft);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 10px;
            margin-bottom: 10px;
        }

        .news-body h3 {
            font-size: 16px;
            line-height: 1.5;
            font-weight: 800;
            margin: 0 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-body p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-mid);
            margin: 0 0 12px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .news-meta a {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        @media (max-width: 1023px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

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

        .faq-list {
            max-width: 920px;
            margin-top: 12px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            transition: border-color .2s, box-shadow .2s;
        }

        .faq-item.open {
            border-color: #C2D9F4;
            box-shadow: var(--shadow-sm);
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 22px;
            background: transparent;
            border: 0;
            cursor: pointer;
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            text-align: left;
            line-height: 1.5;
        }

        .faq-q .faq-icon {
            flex: 0 0 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }

        .faq-q .fa-chevron-down {
            margin-left: auto;
            transition: transform .18s;
            color: var(--text-light);
            font-size: 13px;
        }

        .faq-item.open .faq-q .fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-a {
            display: none;
            padding: 0 22px 22px 62px;
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.9;
        }

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

        @media (max-width: 560px) {
            .faq-q {
                padding: 16px 16px;
                font-size: 14px;
            }

            .faq-a {
                padding: 0 16px 18px 52px;
            }
        }

        /* ===== CTA ===== */
        .cta-band {
            position: relative;
            overflow: hidden;
            border-radius: 24px;
            padding: 54px 48px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            background: #132238 url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            box-shadow: 0 14px 40px rgba(12, 30, 60, .18);
        }

        .cta-band::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 24, 50, .88) 0%, rgba(11, 24, 50, .62) 70%, rgba(11, 24, 50, .45) 100%);
            border-radius: 24px;
        }

        .cta-band .cta-content,
        .cta-band .cta-actions {
            position: relative;
            z-index: 2;
        }

        .cta-band h2 {
            font-size: clamp(22px, 3vw, 30px);
            margin: 0 0 6px;
            font-weight: 800;
        }

        .cta-band p {
            color: rgba(255, 255, 255, .8);
            font-size: 15px;
            margin: 0;
        }

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

        .btn-accent {
            background: var(--accent);
            color: #402800;
            border-radius: 999px;
            min-height: 46px;
            padding: 0 28px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: background .2s, transform .2s;
        }

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

        .CTAoutline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .5);
            color: #fff;
            border-radius: 999px;
            min-height: 46px;
            padding: 0 26px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background .2s, transform .2s;
        }

        .CTAoutline:hover {
            background: rgba(255, 255, 255, .15);
            color: #fff;
        }

        @media (max-width: 767px) {
            .cta-band {
                padding: 30px 22px;
                border-radius: 18px;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 46px 0 24px;
            margin-top: 76px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.7fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 28px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
        }

        .footer-desc {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.85;
            margin-top: 14px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
        }

        .footer-link-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-link-list a {
            color: var(--text-mid);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color .2s;
        }

        .footer-link-list a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            color: var(--text-light);
            font-size: 13px;
        }

        @media (max-width: 767px) {
            .footer-main {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .footer {
                margin-top: 48px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1B6DE0;
            --primary-hover: #1456AE;
            --primary-soft: #E6F0FF;
            --accent: #F5A623;
            --accent-hover: #E08E00;
            --teal: #2CA88F;
            --body-bg: #F6F9FC;
            --card-bg: #ffffff;
            --text-main: #101828;
            --text-sub: #66738A;
            --border: #E4EAF2;
            --radius-lg: 18px;
            --radius-md: 12px;
            --shadow-sm: 0 2px 10px rgba(16, 24, 40, .06);
            --shadow-md: 0 12px 24px rgba(16, 24, 40, .1);
            --header-height: 76px;
        }

        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--body-bg);
            color: var(--text-main);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        button {
            font-family: inherit;
        }

        .container-x {
            width: 100%;
            max-width: 1260px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .section {
            padding: 82px 0;
        }
        .section.pt-0 {
            padding-top: 0;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, .92);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            gap: 18px;
            min-height: var(--header-height);
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            margin-right: 4px;
        }
        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
            box-shadow: 0 6px 14px rgba(27, 109, 224, .28);
        }
        .logo-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
            letter-spacing: .01em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-chips {
            display: flex;
            align-items: center;
            gap: 6px;
            justify-content: center;
            margin: 0 auto;
            padding: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }
        .nav-chips::-webkit-scrollbar {
            display: none;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            height: 38px;
            padding: 0 18px;
            border-radius: 999px;
            background: #F1F5FA;
            border: 1px solid transparent;
            color: #4C5B70;
            font-size: 14px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            transition: all .2s ease;
        }
        .nav-chip:hover {
            color: var(--primary);
            background: #DCECFF;
        }
        .nav-chip.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 6px 14px rgba(27, 109, 224, .26);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 18px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all .2s ease;
        }
        .btn-header:hover {
            background: var(--primary-hover);
            box-shadow: 0 8px 18px rgba(27, 109, 224, .24);
            transform: translateY(-1px);
        }

        /* ===== Footer ===== */
        .footer {
            background: #0F1C2E;
            color: #AAB6C6;
            padding-top: 62px;
            margin-top: 20px;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.5fr .7fr .8fr;
            gap: 46px;
            padding-bottom: 34px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
        }
        .footer-desc {
            margin: 18px 0 0;
            font-size: 14px;
            line-height: 1.9;
            color: #8FA0B4;
            max-width: 420px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-link-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 14px;
        }
        .footer-link-list a {
            color: #AAB6C6;
            transition: color .2s ease, transform .2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-link-list a:hover {
            color: #fff;
            transform: translateX(3px);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            padding: 22px 0 30px;
            font-size: 13px;
            color: #7A8A9F;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 26px;
            border-radius: 999px;
            border: 1px solid transparent;
            font-size: 15px;
            font-weight: 700;
            line-height: 1;
            cursor: pointer;
            transition: all .2s ease;
        }
        .btn i {
            font-size: 14px;
        }
        .btn-light {
            background: #fff;
            color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(8, 18, 35, .16);
        }
        .btn-light:hover {
            background: #F2F7FF;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(8, 18, 35, .2);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(27, 109, 224, .3);
        }
        .btn-ghost-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, .62);
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border-color: rgba(27, 109, 224, .45);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(27, 109, 224, .24);
        }

        /* ===== Section head ===== */
        .section-head {
            max-width: 780px;
            margin-bottom: 44px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 34px;
            padding: 0 14px;
            border-radius: 999px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .06em;
        }
        .section-title {
            font-size: clamp(25px, 3vw, 34px);
            line-height: 1.35;
            font-weight: 800;
            margin: 16px 0 12px;
            letter-spacing: -.01em;
        }
        .section-desc {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.85;
            max-width: 800px;
        }
        .section-head.center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Hero ===== */
        .hero-guide {
            position: relative;
            display: flex;
            align-items: center;
            min-height: 610px;
            padding: 120px 0 72px;
            color: #fff;
            background: linear-gradient(88deg, rgba(7, 18, 36, .94) 0%, rgba(11, 36, 74, .76) 48%, rgba(8, 28, 58, .52) 100%), url('/assets/images/backpic/back-3.webp') center center / cover no-repeat #0B2547;
        }
        .hero-copy {
            position: relative;
            z-index: 2;
            max-width: 900px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
            margin-bottom: 28px;
        }
        .breadcrumb a {
            transition: color .2s ease;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, .5);
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 34px;
            padding: 0 15px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .24);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: blur(6px);
            margin-bottom: 18px;
        }
        .hero-title {
            font-size: clamp(31px, 4.8vw, 54px);
            line-height: 1.2;
            font-weight: 800;
            margin: 0 0 18px;
            letter-spacing: -.02em;
            color: #fff;
        }
        .brand-highlight {
            color: #FFC53D;
        }
        .hero-sub {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .86);
            max-width: 680px;
            margin: 0 0 30px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 34px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 34px;
            padding: 0 13px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .16);
            font-size: 13px;
            color: rgba(255, 255, 255, .92);
        }
        .hero-meta i {
            color: #FFC53D;
        }

        /* ===== Cards ===== */
        .guide-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(27, 109, 224, .25);
        }
        .guide-media {
            position: relative;
            height: 220px;
            overflow: hidden;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            background: #DCE9F7;
        }
        .guide-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .guide-card:hover .guide-media img {
            transform: scale(1.04);
        }
        .guide-image-tag {
            position: absolute;
            left: 16px;
            top: 16px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 30px;
            padding: 0 12px;
            border-radius: 999px;
            background: rgba(9, 25, 50, .55);
            border: 1px solid rgba(255, 255, 255, .2);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }
        .guide-body {
            padding: 24px;
        }
        .guide-body h3 {
            font-size: 20px;
            line-height: 1.4;
            font-weight: 800;
            margin: 0 0 8px;
        }
        .guide-body p {
            margin: 0 0 14px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.85;
        }
        .guide-check-list {
            margin: 14px 0 16px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px 16px;
        }
        .guide-check-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #33445E;
        }
        .guide-check-list i {
            color: var(--primary);
            font-size: 13px;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            transition: gap .2s ease, color .2s ease;
        }
        .text-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }
        .guide-map {
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            gap: 24px;
        }
        .mini-stack {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
        }
        .mini-card-row {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 24px;
            border-radius: var(--radius-lg);
        }
        .mini-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            flex-shrink: 0;
            background: var(--primary-soft);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .mini-card-row h3 {
            font-size: 17px;
            font-weight: 800;
            margin: 0 0 6px;
        }
        .mini-card-row p {
            margin: 0 0 10px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }
        .mini-card-row .text-link {
            font-size: 13px;
        }

        /* ===== Steps ===== */
        .guide-steps-bg {
            background: #EDF4FA;
            border-radius: 30px;
            padding: 60px 44px 52px;
            border: 1px solid #DCECFF;
        }
        .steps-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .step-box {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 22px;
            padding: 30px 28px;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .step-box:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 22px;
            box-shadow: 0 10px 20px rgba(27, 109, 224, .22);
        }
        .step-box h3 {
            font-size: 18px;
            font-weight: 800;
            margin: 0 0 10px;
        }
        .step-box p {
            margin: 0;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.85;
        }

        /* ===== Update panel ===== */
        .update-panel {
            display: grid;
            grid-template-columns: .92fr 1.08fr;
            gap: 0;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 26px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .update-media {
            position: relative;
            min-height: 320px;
        }
        .update-media img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .update-content {
            padding: 48px 46px;
        }
        .update-content h2 {
            font-size: clamp(23px, 2.6vw, 31px);
            line-height: 1.4;
            font-weight: 800;
            margin: 16px 0 14px;
        }
        .update-content > p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.9;
            margin: 0 0 24px;
        }
        .update-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .update-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: #2B3B54;
            line-height: 1.7;
        }
        .update-list i {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--teal);
            background: rgba(44, 168, 143, .12);
            font-size: 11px;
            flex-shrink: 0;
            margin-top: 5px;
        }

        /* ===== Compare ===== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .compare-card {
            border-radius: 24px;
            padding: 38px 34px;
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .compare-card h3 {
            font-size: 22px;
            font-weight: 800;
            margin: 0 0 4px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .compare-card .compare-sub {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-sub);
            margin-bottom: 22px;
        }
        .compare-card ul {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .compare-card li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            font-size: 15px;
            color: #2B3B54;
            line-height: 1.8;
        }
        .compare-card li i {
            color: var(--primary);
            margin-top: 6px;
            font-size: 14px;
        }
        .compare-primary {
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 16px 36px rgba(27, 109, 224, .2);
            color: #fff;
        }
        .compare-primary li,
        .compare-primary .compare-sub {
            color: rgba(255, 255, 255, .88);
        }
        .compare-primary li i {
            color: #FFD166;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 920px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .25s ease, box-shadow .25s ease;
        }
        .faq-item.open {
            border-color: rgba(27, 109, 224, .35);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            background: transparent;
            border: none;
            text-align: left;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.6;
            transition: color .2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            flex-shrink: 0;
            color: var(--primary);
            font-size: 16px;
            transition: transform .3s ease;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 24px;
            transition: max-height .3s ease, padding .3s ease;
        }
        .faq-answer p {
            padding: 0 0 22px;
            margin: 0;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.9;
        }

        /* ===== CTA ===== */
        .cta-banner {
            background: var(--primary);
            border-radius: 28px;
            padding: 52px 58px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 44px rgba(27, 109, 224, .24);
        }
        .cta-banner::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            pointer-events: none;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            right: 60px;
            bottom: -120px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
        }
        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 680px;
        }
        .cta-tag {
            color: #FFD166;
            font-weight: 700;
            font-size: 13px;
            letter-spacing: .1em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-banner h2 {
            font-size: clamp(25px, 3vw, 36px);
            line-height: 1.35;
            font-weight: 800;
            margin: 12px 0 12px;
        }
        .cta-banner p {
            margin: 0;
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            position: relative;
            z-index: 2;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .header-inner {
                flex-wrap: wrap;
                padding-top: 12px;
                padding-bottom: 12px;
            }
            .header-actions {
                margin-left: auto;
            }
            .nav-chips {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                padding-bottom: 6px;
                margin-left: 0;
                margin-right: 0;
            }
            .guide-map {
                grid-template-columns: 1fr;
            }
            .mini-stack {
                grid-template-rows: none;
                grid-template-columns: 1fr 1fr;
            }
            .steps-row {
                grid-template-columns: 1fr 1fr;
            }
            .step-box:last-child {
                grid-column: 1 / -1;
            }
            .update-panel {
                grid-template-columns: 1fr;
            }
            .update-media {
                min-height: 250px;
            }
            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 42px 38px;
            }
        }

        @media (max-width: 767px) {
            .container-x {
                padding: 0 20px;
            }
            .section {
                padding: 58px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .hero-guide {
                min-height: 540px;
                padding: 100px 0 54px;
            }
            .hero-title {
                font-size: 29px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .mini-stack {
                grid-template-columns: 1fr;
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
            .step-box:last-child {
                grid-column: auto;
            }
            .guide-steps-bg {
                padding: 34px 20px 24px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .compare-card {
                padding: 28px 24px;
            }
            .update-content {
                padding: 32px 24px;
            }
            .guide-check-list {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 34px 24px;
                border-radius: 20px;
            }
            .update-media {
                min-height: 200px;
            }
            .header-actions .btn-header {
                padding: 0 14px;
                font-size: 13px;
            }
            .logo-text {
                font-size: 17px;
            }
        }

        @media (max-width: 420px) {
            .btn-header i {
                display: none;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(27, 109, 224, .4);
            outline-offset: 2px;
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                transition: none !important;
                scroll-behavior: auto !important;
            }
        }