/* roulang page: index */
:root {
            --bg-night: #0B1020;
            --bg-body: #0D1424;
            --surface: #131C2F;
            --surface-2: #182338;
            --primary: #1FC6CF;
            --primary-dark: #17A6AF;
            --accent: #FF7A45;
            --accent-soft: rgba(255, 122, 69, .16);
            --star-yellow: #E9C46A;
            --nebula: #8B7CF6;
            --text-main: #E8EEFB;
            --text-muted: #9AABCB;
            --line: rgba(158, 184, 230, .16);
            --radius: 16px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow: 0 16px 32px rgba(0, 0, 0, .24);
            --custom-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--custom-font);
            background: var(--bg-body);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .22s ease, background .22s ease, border-color .22s ease, transform .22s ease, box-shadow .22s ease;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1160px;
        }

        h1,
        h2,
        h3,
        p {
            margin: 0;
        }

        .section {
            padding: clamp(72px, 8vw, 110px) 0;
        }

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

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .02em;
            margin-bottom: 12px;
        }

        .eyebrow::before {
            content: "";
            width: 18px;
            height: 8px;
            background: linear-gradient(90deg, var(--accent), transparent);
            border-radius: 999px;
        }

        .section-title {
            font-size: clamp(28px, 3.2vw, 40px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .section-sub {
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.9;
        }

        .title-line {
            width: 48px;
            height: 3px;
            border-radius: 4px;
            margin: 16px 0 28px;
            background: linear-gradient(90deg, var(--primary), rgba(31, 198, 207, 0));
        }

        .btn {
            border-radius: var(--radius-pill);
            font-weight: 600;
            padding: .72rem 1.6rem;
            font-size: 15px;
            line-height: 1.6;
            border: 1px solid transparent;
            transition: all .24s ease;
        }

        .btn-main {
            background: var(--primary);
            color: #07212B;
            border-color: var(--primary);
        }

        .btn-main:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #062029;
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(31, 198, 207, .26);
        }

        .btn-ghost {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-ghost:hover {
            background: rgba(31, 198, 207, .10);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-cta {
            background: var(--accent);
            color: #ffffff;
            border-color: var(--accent);
            padding: .9rem 2.2rem;
            font-size: 16px;
            box-shadow: 0 8px 20px rgba(255, 122, 69, .22);
        }

        .btn-cta:hover {
            background: #ff8f5c;
            border-color: #ff8f5c;
            color: #fff;
            box-shadow: 0 14px 30px rgba(255, 122, 69, .34);
            transform: translateY(-2px);
        }

        .btn:focus-visible,
        .nav-link:focus-visible,
        a:focus-visible {
            outline: none;
            box-shadow: 0 0 0 2px #0B1020, 0 0 0 4px var(--primary);
        }

        .site-nav {
            background: rgba(11, 16, 32, .72);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            padding: 12px 0;
            border-bottom: 1px solid var(--line);
        }

        .site-nav .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.45rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .site-nav .navbar-brand:hover {
            color: #fff;
        }

        .brand-star {
            color: var(--primary);
        }

        .brand-official {
            display: inline-block;
            font-size: 11px;
            color: var(--accent);
            border: 1px solid rgba(255, 122, 69, .5);
            border-radius: 8px;
            padding: 0 5px;
            margin-left: 4px;
            font-weight: 700;
            line-height: 18px;
        }

        .site-nav .navbar-nav {
            gap: 8px;
        }

        .site-nav .nav-link {
            color: var(--text-muted);
            font-weight: 600;
            font-size: 15px;
            padding: 10px 18px;
            border-radius: 999px;
            border: 1px solid transparent;
        }

        .site-nav .nav-link:hover {
            color: var(--text-main);
            background: rgba(31, 198, 207, .08);
        }

        .site-nav .nav-link.active {
            background: rgba(31, 198, 207, .14);
            color: var(--primary);
            border-color: rgba(31, 198, 207, .26);
        }

        .site-nav .nav-cta {
            margin-left: 16px;
        }

        .navbar-toggler {
            border-color: var(--line);
            color: var(--text-main);
            border-radius: 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(31, 198, 207, .4);
        }

        .hero {
            position: relative;
            padding: clamp(120px, 12vw, 160px) 0 90px;
            background:
                linear-gradient(180deg, rgba(11, 16, 32, .86) 0%, rgba(13, 20, 36, .68) 56%, var(--bg-body) 100%),
                radial-gradient(circle at 18% 10%, rgba(31, 198, 207, .14), transparent 34%),
                radial-gradient(circle at 90% 20%, rgba(139, 124, 246, .16), transparent 30%),
                url('/assets/images/backpic/back-1.png') no-repeat center/cover;
            border-bottom: 1px solid var(--line);
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            pointer-events: none;
            background-image: radial-gradient(rgba(233, 196, 106, .3) 1px, transparent 1px);
            background-size: 42px 42px;
            opacity: .08;
        }

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

        .hero-copy {
            padding-right: 30px;
        }

        .hero h1 {
            font-size: clamp(40px, 5vw, 64px);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: 0;
            margin: 16px 0 20px;
            color: #fff;
        }

        .hero h1 .text-gradient {
            background: linear-gradient(90deg, var(--primary) 0%, #7adff1 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero .hero-lead {
            color: var(--text-muted);
            font-size: 17px;
            max-width: 560px;
            line-height: 1.9;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 30px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 38px;
        }

        .hero-stats span {
            background: rgba(19, 28, 47, .7);
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 12px 18px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.4;
        }

        .hero-stats strong {
            display: block;
            font-size: 22px;
            color: var(--primary);
            font-weight: 800;
        }

        .phone-frame {
            margin-left: auto;
            margin-right: auto;
            max-width: 400px;
            border-radius: 36px;
            padding: 12px;
            background: linear-gradient(160deg, rgba(31, 198, 207, .4), rgba(139, 124, 246, .22));
            box-shadow: 0 30px 60px rgba(0, 0, 0, .36);
            transform: rotate(1.6deg);
        }

        .phone-screen {
            position: relative;
            border-radius: 28px;
            overflow: hidden;
            aspect-ratio: 9 / 14;
            background: #0f1a2e;
        }

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

        .phone-screen .screen-vignette {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0) 20%, rgba(0, 0, 0, .72) 100%);
        }

        .phone-screen .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .18);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, .4);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            padding-left: 5px;
            transition: transform .25s ease, background .25s ease;
        }

        .phone-screen .play-btn:hover {
            transform: translate(-50%, -50%) scale(1.08);
            background: rgba(31, 198, 207, .64);
        }

        .phone-caption {
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 24px;
            color: #fff;
            font-size: 17px;
            font-weight: 700;
        }

        .quick-channel {
            padding: 38px 0 24px;
            background: var(--bg-body);
        }

        .quick-row {
            display: grid;
            grid-template-columns: repeat(5, minmax(120px, 1fr));
            gap: 14px;
        }

        @media (max-width: 767px) {
            .quick-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .quick-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 16px;
            color: var(--text-main);
            font-weight: 600;
            min-height: 72px;
        }

        .quick-item i {
            color: var(--primary);
            font-size: 24px;
            width: 28px;
            text-align: center;
        }

        .quick-item:hover {
            background: var(--surface-2);
            border-color: rgba(31, 198, 207, .5);
            color: var(--primary);
            transform: translateY(-4px);
        }

        .section-label {
            display: flex;
            justify-content: space-between;
            align-items: end;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 30px;
        }

        .section-link {
            color: var(--text-muted);
            font-size: 14px;
            white-space: nowrap;
        }

        .section-link i {
            margin-left: 3px;
        }

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

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

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

        @media (max-width: 520px) {
            .clip-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

        .clip-card {
            position: relative;
            display: block;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--surface);
            border: 1px solid var(--line);
            will-change: transform;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .clip-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(31, 198, 207, .36);
        }

        .clip-cover {
            position: relative;
            aspect-ratio: 3 / 4;
            overflow: hidden;
            background: #0c1626;
        }

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

        .clip-cover .duration {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(9, 14, 27, .72);
            -webkit-backdrop-filter: blur(4px);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 12px;
            padding: 3px 8px;
            border-radius: 8px;
        }

        .clip-cover .heat {
            position: absolute;
            right: 12px;
            bottom: 14px;
            background: rgba(9, 14, 27, .65);
            -webkit-backdrop-filter: blur(4px);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 12px;
            padding: 4px 9px;
            border-radius: 8px;
        }

        .clip-card .hover-play {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(6, 11, 22, .32);
            opacity: 0;
            transition: opacity .3s ease;
        }

        .clip-card:hover .hover-play {
            opacity: 1;
        }

        .hover-play i {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding-left: 4px;
            border-radius: 50%;
            background: rgba(31, 198, 207, .86);
            color: #ffffff;
            font-size: 20px;
        }

        .clip-info {
            padding: 14px 14px 16px;
            border-top: 1px solid var(--line);
        }

        .clip-info .meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .clip-info h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .badge-cat {
            display: inline-block;
            padding: 3px 10px;
            font-size: 12px;
            border-radius: 999px;
            background: rgba(31, 198, 207, .14);
            border: 1px solid rgba(31, 198, 207, .3);
            color: var(--primary);
            font-weight: 600;
        }

        .badge-orange {
            background: rgba(255, 122, 69, .12);
            border-color: rgba(255, 122, 69, .3);
            color: var(--accent);
        }

        .rank-section {
            background: linear-gradient(180deg, var(--bg-body) 0%, #0b1322 50%, var(--bg-body) 100%);
        }

        .rank-panel {
            background: rgba(19, 28, 47, .62);
            border: 1px solid var(--line);
            border-radius: 22px;
            overflow: hidden;
            padding: 10px 0;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 24px 30px;
            flex-wrap: wrap;
            border-bottom: 1px solid var(--line);
            transition: background .2s ease;
        }

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

        .rank-item:hover {
            background: var(--surface-2);
        }

        .rank-num {
            font-size: 42px;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 1px var(--primary);
            min-width: 70px;
            text-align: center;
            line-height: 1;
            opacity: .95;
        }

        .rank-main {
            flex: 1;
            min-width: 220px;
        }

        .rank-main h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-main);
        }

        .rank-main h3 a {
            color: var(--text-main);
        }

        .rank-main h3 a:hover {
            color: var(--primary);
        }

        .rank-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-muted);
            font-size: 13px;
            margin-top: 8px;
        }

        .rank-arrow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(31, 198, 207, .08);
            color: var(--primary);
            font-size: 19px;
        }

        .rank-arrow:hover {
            background: var(--primary);
            color: #07212B;
            transform: translateX(4px);
        }

        .rank-item:hover .rank-num {
            -webkit-text-stroke-color: var(--accent);
            color: var(--accent);
            opacity: 1;
        }

        .social-section {
            background: var(--bg-body);
        }

        .rating-strip {
            background: linear-gradient(90deg, rgba(31, 198, 207, .14), rgba(139, 124, 246, .12));
            border: 1px solid var(--line);
            border-radius: 22px;
            padding: 28px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            margin-bottom: 18px;
        }

        .rating-score {
            font-size: 42px;
            font-weight: 800;
            color: var(--star-yellow);
            line-height: 1;
        }

        .rating-strip .stars {
            color: var(--star-yellow);
            font-size: 18px;
            letter-spacing: 2px;
        }

        .rating-strip p {
            color: var(--text-muted);
            font-size: 14px;
            max-width: 520px;
        }

        .review-scroll {
            display: flex;
            gap: 18px;
            overflow-x: auto;
            scrollbar-width: none;
            padding-bottom: 8px;
        }

        .review-scroll::-webkit-scrollbar {
            display: none;
        }

        .review-card {
            flex: 0 0 300px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 22px;
        }

        .review-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .review-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(140deg, var(--primary), var(--nebula));
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }

        .review-name {
            font-weight: 700;
            color: var(--text-main);
        }

        .review-source {
            font-size: 12px;
            color: var(--text-muted);
        }

        .review-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
        }

        .review-foot {
            margin-top: 12px;
            color: rgba(154, 171, 203, .72);
            font-size: 12px;
        }

        .news-latest-section {
            background: linear-gradient(180deg, var(--bg-body), #101a2e);
        }

        .news-feed-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 16px;
            margin-bottom: 18px;
            transition: background .24s ease, transform .24s ease;
        }

        .news-feed-item:hover {
            background: var(--surface-2);
            transform: translateY(-4px);
        }

        .news-thumb {
            width: 200px;
            min-width: 200px;
            border-radius: 12px;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #101a2e;
            display: block;
        }

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

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

        .news-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-info h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .news-info h3 a {
            color: var(--text-main);
        }

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

        .news-info p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-link {
            font-size: 13px;
            font-weight: 600;
            margin-top: 10px;
            display: inline-block;
            color: var(--primary);
        }

        .news-link i {
            margin-left: 4px;
            font-size: 12px;
        }

        .empty-panel {
            border: 1px dashed var(--line);
            background: rgba(11, 16, 32, .4);
            border-radius: var(--radius);
            padding: 40px 30px;
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .empty-panel a {
            color: var(--primary);
            font-weight: 600;
        }

        .faq-section {
            background: var(--bg-body);
        }

        .faq-box {
            max-width: 860px;
            margin: 0 auto;
        }

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

        .accordion-button {
            background: transparent;
            box-shadow: none;
            color: var(--text-main);
            font-weight: 700;
            font-size: 17px;
            padding: 18px 24px;
            line-height: 1.6;
            border-left: 3px solid transparent;
        }

        .accordion-button:not(.collapsed) {
            background: var(--surface);
            color: var(--text-main);
            border-left-color: var(--primary);
        }

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

        .accordion-button::after {
            background-image: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\2b";
            display: flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            color: var(--primary);
            font-size: 16px;
            transition: transform .3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--accent);
            background-image: none;
        }

        .accordion-body {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.85;
            padding: 10px 24px 22px;
        }

        .bottom-cta {
            position: relative;
            overflow: hidden;
            padding: clamp(90px, 10vw, 140px) 0;
            background:
                linear-gradient(0deg, rgba(8, 13, 26, .88), rgba(11, 16, 32, .72)),
                url('/assets/images/backpic/back-3.png') no-repeat center / cover;
            text-align: center;
        }

        .bottom-cta h2 {
            font-size: clamp(32px, 4.2vw, 54px);
            font-weight: 800;
            color: #fff;
        }

        .bottom-cta p {
            max-width: 680px;
            margin: 18px auto 30px;
            color: var(--text-muted);
            font-size: 17px;
        }

        .cta-glow {
            display: inline-block;
            box-shadow: 0 0 0 5px rgba(255, 122, 69, .12), 0 12px 36px rgba(255, 122, 69, .32);
        }

        .footer {
            background: #070B16;
            border-top: 1px solid var(--line);
            padding: 60px 0 24px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

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

        .footer p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .footer h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }

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

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

        .footer ul a {
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--line);
            margin-top: 42px;
            padding-top: 20px;
            color: rgba(154, 171, 203, .7);
            font-size: 13px;
        }

        @media (max-width: 991px) {
            .hero {
                padding-top: 110px;
            }

            .hero-copy {
                padding-right: 0;
            }

            .site-nav .navbar-nav {
                gap: 4px;
                background: var(--surface);
                padding: 16px;
                border-radius: 18px;
                border: 1px solid var(--line);
                margin-top: 12px;
            }

            .site-nav .nav-link {
                border-bottom: 1px solid rgba(158, 184, 230, .12);
                border-radius: 10px;
            }

            .site-nav .nav-link:last-child {
                border-bottom: 0;
            }

            .site-nav .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                width: 100%;
                text-align: center;
            }

            .section {
                padding: 64px 0;
            }

            .news-feed-item {
                flex-direction: column;
                align-items: stretch;
            }

            .news-thumb {
                width: 100%;
                min-width: 100%;
            }
        }

        @media (max-width: 767px) {
            .quick-row {
                grid-template-columns: repeat(2, 1fr);
            }

            .quick-item {
                padding: 14px 12px;
                min-height: 64px;
                gap: 8px;
            }

            .quick-item i {
                font-size: 20px;
            }

            .hero .row {
                gap: 36px;
            }

            .phone-frame {
                max-width: min(86vw, 360px);
                transform: none;
            }

            .rank-item {
                padding: 18px 18px;
                gap: 14px;
            }

            .rank-num {
                font-size: 34px;
                min-width: 42px;
            }

            .rank-main h3 {
                font-size: 16px;
            }

            .rating-strip {
                padding: 22px 18px;
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .news-info h3 {
                font-size: 17px;
            }

            .footer-col {
                margin-bottom: 28px;
            }
        }

        @media (max-width: 420px) {
            .hero h1 {
                font-size: 34px;
            }

            .btn-main,
            .btn-cta {
                width: 100%;
                text-align: center;
            }

            .bottom-cta .btn {
                width: 100%;
                max-width: 380px;
            }
        }

/* roulang page: article */
:root {
            --bg-night: #070D19;
            --bg-body: #0D1424;
            --surface: #131C2F;
            --surface-2: #182338;
            --surface-3: #1E2840;
            --primary: #1FC6CF;
            --primary-rgb: 31, 198, 207;
            --primary-dark: #16A9B2;
            --accent: #FF7A45;
            --accent-rgb: 255, 122, 69;
            --accent-soft: rgba(255, 122, 69, .16);
            --star-yellow: #E9C46A;
            --nebula: #8B7CF6;
            --text-main: #E9F0FF;
            --text-muted: #8FA3C7;
            --line: rgba(158, 184, 230, .16);
            --radius: 16px;
            --radius-lg: 22px;
            --shadow: 0 16px 32px rgba(0, 0, 0, .28);
            --trans: .25s ease;
            --body-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --content-width: 1160px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--body-font);
            background: var(--bg-body);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.9;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: 16px;
        }

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

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

        .container {
            max-width: var(--content-width);
        }

        /* ------------------------- Header / Nav ------------------------- */
        .site-nav {
            background: rgba(7, 13, 25, .85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(158, 184, 230, .12);
            padding: 14px 0;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
            z-index: 1080;
        }

        .site-nav .navbar-brand {
            display: inline-flex;
            align-items: center;
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0;
            padding: 0;
            margin-right: 28px;
            line-height: 1.2;
        }

        .brand-star {
            color: var(--primary);
            font-weight: 800;
        }

        .brand-official {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent), #FFA46A);
            color: #1A0D08;
            border-radius: 6px;
            padding: 2px 6px;
            margin-left: 6px;
            vertical-align: middle;
            letter-spacing: 0;
            transform: translateY(-2px);
        }

        .site-nav .navbar-nav {
            gap: 2px;
        }

        .site-nav .nav-link {
            color: var(--text-muted);
            font-weight: 600;
            font-size: 15px;
            border-radius: 999px;
            padding: 9px 16px;
            margin: 0 2px;
            transition: color .2s, background .2s;
        }

        .site-nav .nav-link:hover {
            color: var(--text-main);
            background: rgba(31, 198, 207, .08);
        }

        .site-nav .nav-link.active {
            background: rgba(31, 198, 207, .14);
            color: var(--primary);
        }

        .site-nav .nav-cta {
            margin-left: 12px;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #1C0F08;
            border: 0;
            font-weight: 700;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: 999px;
            box-shadow: 0 6px 16px rgba(255, 122, 69, .28);
            transition: all .25s ease;
            letter-spacing: 0;
            white-space: nowrap;
        }

        .btn-cta:hover {
            color: #fff;
            background: #FF6A2E;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(255, 122, 69, .34);
        }

        .btn-cta:focus-visible,
        .site-nav .nav-link:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(31, 198, 207, .2);
        }

        .navbar-toggler {
            border: 1px solid rgba(230, 240, 255, .2);
            color: #fff;
            padding: 7px 10px;
            border-radius: 10px;
            background: transparent;
            transition: border-color .2s;
        }

        .navbar-toggler:hover {
            border-color: var(--primary);
        }

        .navbar-toggler i {
            font-size: 18px;
            color: var(--text-main);
        }

        @media (max-width: 991px) {
            .site-nav .navbar-collapse {
                background: var(--surface);
                border: 1px solid var(--line);
                border-radius: 18px;
                padding: 18px;
                margin-top: 14px;
                box-shadow: var(--shadow);
            }

            .site-nav .navbar-nav {
                gap: 4px;
            }

            .site-nav .nav-item {
                border-bottom: 1px solid rgba(158, 184, 230, .08);
                padding: 4px 0;
            }

            .site-nav .nav-item:last-child {
                border-bottom: 0;
            }

            .site-nav .nav-link {
                font-size: 16px;
                padding: 9px 10px;
            }

            .site-nav .nav-cta {
                margin-left: 0;
                padding-top: 10px;
                text-align: center;
            }

            .site-nav .btn-cta {
                width: 100%;
                justify-content: center;
            }
        }

        /* ------------------------- Article Page ------------------------- */
        .article-main {
            padding-top: 138px;
            padding-bottom: 90px;
            background:
                radial-gradient(ellipse at 18% 12%, rgba(31, 198, 207, .07), transparent 42%),
                radial-gradient(ellipse at 85% 30%, rgba(139, 124, 246, .05), transparent 38%),
                var(--bg-body);
            min-height: 70vh;
        }

        .breadcrumb-wrap {
            margin-bottom: 32px;
        }

        .breadcrumb-pill {
            display: inline-flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            background: rgba(19, 28, 47, .7);
            border: 1px solid var(--line);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

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

        .breadcrumb-pill .sep {
            color: rgba(143, 163, 199, .45);
            margin: 0 2px;
        }

        .breadcrumb-pill .current {
            color: var(--text-main);
            font-weight: 500;
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-holder {
            background: linear-gradient(180deg, rgba(19, 28, 47, .95), rgba(15, 22, 38, .98));
            border: 1px solid var(--line);
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow);
            padding: clamp(28px, 5vw, 64px);
        }

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

        .post-category-line {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            margin-bottom: 22px;
        }

        .category-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(31, 198, 207, .12);
            border: 1px solid rgba(31, 198, 207, .26);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0;
        }

        .category-chip i {
            font-size: 12px;
            color: var(--primary);
        }

        .read-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            background: rgba(0, 0, 0, .2);
            border-radius: 999px;
            padding: 5px 14px;
        }

        .article-title {
            font-size: clamp(28px, 4.2vw, 48px);
            font-weight: 800;
            line-height: 1.24;
            color: #fff;
            margin: 12px 0 18px;
            letter-spacing: 0;
        }

        .article-title .brand-accent {
            color: var(--primary);
        }

        .post-meta-list {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 22px;
            color: var(--text-muted);
            font-size: 14px;
            padding: 14px 0 0;
            border-top: 1px solid rgba(158, 184, 230, .1);
        }

        .post-meta-list .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .post-meta-list i {
            color: var(--primary);
            font-size: 13px;
        }

        .featured-cover {
            margin: 30px 0 10px;
        }

        .featured-cover img {
            width: 100%;
            aspect-ratio: 16 / 8;
            object-fit: cover;
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, .32);
            border: 1px solid rgba(158, 184, 230, .1);
        }

        .post-content-wrap {
            max-width: 760px;
            margin: 0 auto;
        }

        .post-content {
            font-size: 17px;
            line-height: 2.05;
            color: #DCE6F8;
            word-break: break-word;
        }

        .post-content p {
            margin: 0 0 1.4em;
        }

        .post-content h1,
        .post-content h2,
        .post-content h3,
        .post-content h4,
        .post-content h5 {
            color: #fff;
            font-weight: 800;
            line-height: 1.4;
            margin: 2em 0 .8em;
            letter-spacing: 0;
        }

        .post-content h1 {
            font-size: 30px;
        }

        .post-content h2 {
            font-size: 24px;
            padding-top: .2em;
        }

        .post-content h3 {
            font-size: 20px;
        }

        .post-content img {
            border-radius: 16px;
            margin: 22px 0;
            box-shadow: 0 14px 28px rgba(0, 0, 0, .22);
        }

        .post-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(31, 198, 207, .06);
            padding: 16px 22px;
            border-radius: 0 14px 14px 0;
            margin: 1.8em 0;
            color: #B8C7E4;
            font-size: 16px;
        }

        .post-content blockquote p {
            margin-bottom: 0;
        }

        .post-content ul,
        .post-content ol {
            margin: 0 0 1.6em;
            padding-left: 1.4em;
        }

        .post-content li {
            margin-bottom: .4em;
        }

        .post-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(31, 198, 207, .35);
        }

        .post-content a:hover {
            text-decoration-color: var(--primary);
        }

        .post-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 22px 0;
            font-size: 15px;
        }

        .post-content table td,
        .post-content table th {
            border: 1px solid rgba(158, 184, 230, .12);
            padding: 10px 12px;
        }

        .post-content table th {
            background: var(--surface-2);
            color: #fff;
        }

        .post-content iframe,
        .post-content video {
            width: 100%;
            border-radius: 16px;
            margin: 20px 0;
        }

        /* ---------- missing post ---------- */
        .missing-post {
            text-align: center;
            padding: 50px 20px;
            max-width: 640px;
            margin: 0 auto;
        }

        .missing-post-icon {
            font-size: 68px;
            color: var(--primary);
            display: inline-block;
            background: rgba(31, 198, 207, .07);
            width: 116px;
            height: 116px;
            line-height: 116px;
            border-radius: 50%;
            border: 1px solid rgba(31, 198, 207, .2);
            margin-bottom: 20px;
        }

        .missing-post h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }

        .missing-post p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .btn-secondary-soft {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--primary);
            color: var(--primary);
            background: transparent;
            border-radius: 999px;
            padding: 10px 24px;
            font-weight: 700;
            font-size: 15px;
            transition: all .25s;
        }

        .btn-secondary-soft:hover {
            background: rgba(31, 198, 207, .12);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-primary-solid {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 0;
            background: var(--primary);
            color: #07212B;
            border-radius: 999px;
            padding: 12px 30px;
            font-weight: 700;
            font-size: 15px;
            transition: all .25s;
            box-shadow: 0 8px 16px rgba(31, 198, 207, .18);
        }

        .btn-primary-solid:hover {
            background: var(--primary-dark);
            color: #07212B;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(31, 198, 207, .26);
        }

        /* ---------- tag area ---------- */
        .post-footer-zone {
            max-width: 760px;
            margin: 0 auto;
            padding-top: 34px;
            border-top: 1px solid rgba(158, 184, 230, .1);
            margin-top: 42px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .tag-cloud .tag-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            margin-right: 4px;
        }

        .tag-item {
            display: inline-block;
            background: rgba(139, 124, 246, .1);
            border: 1px solid rgba(139, 124, 246, .22);
            color: #B9AFFF;
            font-size: 13px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            transition: all .2s;
        }

        .tag-item:hover {
            background: rgba(139, 124, 246, .2);
            border-color: var(--nebula);
            color: #fff;
        }

        /* ---------- post nav ---------- */
        .post-nav-area {
            max-width: 900px;
            margin: 30px auto 0;
        }

        .post-nav-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .post-nav-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: rgba(19, 28, 47, .8);
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 18px 22px;
            transition: all .25s ease;
            color: var(--text-main);
            min-height: 92px;
        }

        .post-nav-card:hover {
            background: var(--surface-2);
            transform: translateY(-4px);
            border-color: rgba(31, 198, 207, .35);
            box-shadow: var(--shadow);
        }

        .post-nav-card .nav-arrow {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(31, 198, 207, .12);
            color: var(--primary);
            flex-shrink: 0;
            font-size: 14px;
        }

        .post-nav-card .nav-info {
            min-width: 0;
        }

        .post-nav-card .nav-caption {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .post-nav-card .nav-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .post-nav-card:last-child {
            text-align: right;
        }

        @media (max-width: 767px) {
            .post-nav-cards {
                grid-template-columns: 1fr;
            }
        }

        /* ---------- related ---------- */
        .related-area {
            margin-top: 60px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            text-transform: none;
            margin-bottom: 8px;
            letter-spacing: 0;
        }

        .section-eyebrow::before {
            content: "";
            width: 7px;
            height: 7px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(255, 122, 69, .14);
        }

        .related-title {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .related-title span {
            color: var(--primary);
        }

        .related-cards .card {
            background: rgba(19, 28, 47, .88);
            border: 1px solid var(--line);
            border-radius: 18px;
            overflow: hidden;
            transition: all .25s ease;
            height: 100%;
            will-change: transform;
        }

        .related-cards .card:hover {
            transform: translateY(-6px);
            border-color: rgba(31, 198, 207, .3);
            box-shadow: 0 20px 36px rgba(0, 0, 0, .28);
        }

        .related-cards .card-img-wrap {
            position: relative;
            aspect-ratio: 4 / 3;
            overflow: hidden;
        }

        .related-cards .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform .5s ease;
        }

        .related-cards .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .duration-chip {
            position: absolute;
            bottom: 12px;
            right: 12px;
            background: rgba(4, 8, 16, .82);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 8px;
            backdrop-filter: blur(6px);
        }

        .related-cards .card-body {
            padding: 20px;
        }

        .related-cards .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .2s;
        }

        .related-cards .card:hover .card-title {
            color: var(--primary);
        }

        .related-card-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ---------- back bar ---------- */
        .back-bar {
            display: flex;
            justify-content: center;
            margin-top: 44px;
        }

        /* ---------- article footer cta minimal ---------- */
        .article-end-cta {
            margin-top: 54px;
            background: linear-gradient(135deg, rgba(31, 198, 207, .1), rgba(255, 122, 69, .08));
            border: 1px solid rgba(31, 198, 207, .18);
            border-radius: 22px;
            padding: clamp(24px, 4vw, 44px);
            text-align: center;
        }

        .article-end-cta h3 {
            font-size: clamp(20px, 2.4vw, 28px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }

        .article-end-cta p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
        }

        /* ------------------------- Footer ------------------------- */
        .footer {
            background: #070C16;
            border-top: 1px solid rgba(158, 184, 230, .12);
            padding: 74px 0 28px;
            margin-top: 0;
        }

        .footer .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            line-height: 1.2;
        }

        .footer p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.9;
            max-width: 350px;
            margin-bottom: 0;
        }

        .footer h4 {
            color: #D6E1F5;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(158, 184, 230, .1);
        }

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

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

        .footer ul li a {
            color: var(--text-muted);
            font-size: 14px;
            transition: all .2s;
        }

        .footer ul li a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(158, 184, 230, .1);
            padding-top: 22px;
            margin-top: 26px;
            color: #667799;
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-bottom span {
            color: #5E6F92;
        }

        @media (max-width: 992px) {
            .article-main {
                padding-top: 130px;
            }
        }

        @media (max-width: 767px) {
            .article-main {
                padding-top: 120px;
                padding-bottom: 60px;
            }

            .article-holder {
                padding: 22px 18px;
                border-radius: 18px;
            }

            .breadcrumb-pill {
                padding: 6px 14px;
                font-size: 13px;
            }

            .breadcrumb-pill .current {
                max-width: 160px;
            }

            .post-meta-list {
                gap: 6px 14px;
                font-size: 13px;
            }

            .featured-cover img {
                aspect-ratio: 16 / 9;
            }

            .post-content {
                font-size: 16px;
            }

            .footer {
                padding: 56px 0 24px;
            }

        }

        @media (min-width: 768px) and (max-width: 1199px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        @media (min-width: 1200px) {
            .container {
                max-width: var(--content-width);
            }
        }

/* roulang page: category1 */
:root {
            --bg-night: #0B1020;
            --bg-body: #0D1424;
            --surface: #131C2F;
            --surface-2: #182338;
            --primary: #1FC6CF;
            --primary-dark: #17A6AF;
            --accent: #FF7A45;
            --accent-soft: rgba(255, 122, 69, .16);
            --star-yellow: #E9C46A;
            --nebula: #8B7CF6;
            --text-main: #E8EEFB;
            --text-muted: #9AABCB;
            --line: rgba(158, 184, 230, .16);
            --radius-card: 16px;
            --radius-img: 20px;
            --shadow-card: 0 16px 32px rgba(0, 0, 0, .24);
            --shadow-hover: 0 20px 44px rgba(0, 0, 0, .34);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.9;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            vertical-align: middle;
        }
        .container {
            max-width: 1160px;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            font-weight: 750;
            color: var(--text-main);
        }
        h1 {
            font-size: clamp(40px, 5vw, 64px);
            font-weight: 800;
            line-height: 1.15;
        }
        h2 {
            font-size: clamp(28px, 3.2vw, 40px);
            font-weight: 750;
        }
        h3 {
            font-size: 22px;
            font-weight: 700;
        }
        p {
            color: var(--text-muted);
            font-size: 16px;
        }
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1080;
            background: linear-gradient(180deg, rgba(8, 13, 26, .92), rgba(8, 13, 26, .72));
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            padding-top: 12px;
            padding-bottom: 12px;
        }
        .site-nav .navbar-brand {
            display: inline-flex;
            align-items: center;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0;
            margin: 0;
        }
        .brand-star {
            color: var(--primary);
        }
        .brand-official {
            font-size: 12px;
            font-weight: 700;
            background: var(--accent-soft);
            color: var(--accent);
            border-radius: 6px;
            padding: 3px 7px;
            margin-left: 6px;
            line-height: 1.4;
        }
        .site-nav .navbar-toggler {
            color: var(--text-main);
            border: 1px solid var(--line);
            border-radius: 10px;
            padding: 8px 12px;
            background: rgba(255, 255, 255, .03);
            font-size: 18px;
            transition: border-color .2s;
        }
        .site-nav .navbar-toggler:hover,
        .site-nav .navbar-toggler:focus-visible {
            border-color: var(--primary);
            outline: none;
        }
        .site-nav .navbar-toggler:focus-visible {
            box-shadow: 0 0 0 2px rgba(31, 198, 207, .35);
        }
        .navbar-nav {
            gap: 0;
        }
        .navbar-nav .nav-link {
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 600;
            border-radius: 999px;
            padding: 9px 16px;
            margin: 0 4px;
            transition: color .2s, background .2s;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, .05);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(31, 198, 207, .14);
        }
        .nav-cta {
            margin-left: 10px;
        }
        .nav-cta .btn-cta {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: 999px;
            padding: 8px 18px;
        }
        .btn {
            border-radius: 999px;
            font-weight: 700;
            transition: all .2s ease;
            padding: .6rem 1.6rem;
            font-size: 16px;
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #07212B;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #04151B;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-accent:hover,
        .btn-accent:focus {
            background: #FF8C5E;
            border-color: #FF8C5E;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .3);
            color: var(--text-main);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, .08);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            box-shadow: 0 0 0 4px rgba(31, 198, 207, .3);
        }
        .cat-hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 170px 0 100px;
            overflow: hidden;
            background: linear-gradient(100deg, rgba(11, 16, 32, .95) 0%, rgba(11, 16, 32, .78) 50%, rgba(13, 20, 36, .88) 100%), url("/assets/images/backpic/back-2.webp") center / cover;
        }
        .cat-hero .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: .02em;
            margin-bottom: 18px;
        }
        .eyebrow::before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }
        .breadcrumb-nav {
            margin-bottom: 20px;
            font-size: 14px;
        }
        .breadcrumb-nav ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-nav li {
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-nav li + li::before {
            content: "/";
            color: rgba(255, 255, 255, .22);
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color .2s;
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav li[aria-current="page"] {
            color: var(--text-main);
            font-weight: 600;
        }
        .cat-hero h1 {
            margin: 0 0 20px;
        }
        .cat-hero h1 .text-primary {
            color: var(--primary);
        }
        .hero-lead {
            font-size: 18px;
            color: #C3D0E5;
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 34px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .section {
            padding: clamp(64px, 7vw, 100px) 0;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head h2 {
            margin-bottom: 14px;
        }
        .section-head p {
            max-width: 760px;
            margin-bottom: 0;
        }
        .head-line {
            width: 44px;
            height: 3px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary), transparent);
            margin-top: 16px;
        }
        .match-list-section {
            background: var(--bg-night);
        }
        .filter-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 26px;
        }
        .pill {
            display: inline-flex;
            align-items: center;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--line);
            background: var(--surface);
            border-radius: 999px;
            padding: 7px 18px;
            transition: all .2s;
        }
        .pill:hover {
            color: var(--primary);
            border-color: rgba(31, 198, 207, .4);
            transform: translateY(-1px);
        }
        .pill.active {
            background: rgba(31, 198, 207, .16);
            border-color: rgba(31, 198, 207, .45);
            color: var(--primary);
        }
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .match-row {
            display: grid;
            grid-template-columns: 132px 1fr 188px;
            align-items: center;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            transition: transform .25s, background .25s, border-color .25s, box-shadow .25s;
        }
        .match-row:hover {
            background: var(--surface-2);
            border-color: rgba(31, 198, 207, .3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .match-date {
            background: rgba(31, 198, 207, .1);
            border-radius: 14px;
            text-align: center;
            padding: 12px 10px;
        }
        .match-date strong {
            display: block;
            font-size: 36px;
            line-height: 1.1;
            color: var(--text-main);
        }
        .match-date span {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
        }
        .match-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 6px;
        }
        .tag-chip {
            display: inline-block;
            background: rgba(139, 124, 246, .16);
            color: #C8C1FF;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            padding: 2px 10px;
        }
        .tag-chip.orange {
            background: var(--accent-soft);
            color: var(--accent);
        }
        .match-main h3 {
            font-size: 20px;
            margin: 4px 0 4px;
        }
        .match-main p {
            font-size: 14px;
            margin: 0;
            color: var(--text-muted);
        }
        .match-side {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 12px;
        }
        .state {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            border-radius: 999px;
            padding: 5px 14px;
            white-space: nowrap;
        }
        .state-warm {
            background: var(--accent-soft);
            color: var(--accent);
        }
        .state-cool {
            background: rgba(31, 198, 207, .14);
            color: var(--primary);
        }
        .state-violet {
            background: rgba(139, 124, 246, .16);
            color: #C8C1FF;
        }
        .round-link {
            width: 42px;
            height: 42px;
            display: inline-grid;
            place-items: center;
            background: transparent;
            border: 1px solid var(--line);
            border-radius: 50%;
            color: var(--primary);
            transition: all .2s;
            flex: 0 0 auto;
        }
        .round-link:hover {
            background: var(--primary);
            color: #07212B;
            transform: translateX(4px);
            border-color: var(--primary);
        }
        .round-link:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }
        .coverage-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 26px;
            transition: transform .25s, background .25s, border-color .25s;
        }
        .coverage-item:hover {
            background: var(--surface-2);
            border-color: rgba(31, 198, 207, .3);
            transform: translateY(-4px);
        }
        .coverage-num {
            min-width: 80px;
            font-size: clamp(30px, 3vw, 44px);
            font-weight: 800;
            line-height: 1;
            color: var(--star-yellow);
            margin-top: 6px;
        }
        .coverage-item h3 {
            font-size: 18px;
            margin: 0 0 8px;
        }
        .coverage-item p {
            font-size: 14px;
            margin: 0;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .step-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 30px 24px;
            position: relative;
            transition: transform .25s, background .25s, border-color .25s;
        }
        .step-card:hover {
            background: var(--surface-2);
            border-color: rgba(255, 122, 69, .35);
            transform: translateY(-4px);
        }
        .step-card::before {
            content: attr(data-index);
            position: absolute;
            right: 22px;
            top: 16px;
            font-size: 60px;
            font-weight: 800;
            line-height: 1;
            color: rgba(255, 255, 255, .08);
        }
        .step-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .step-card p {
            font-size: 14px;
            margin: 0;
            color: var(--text-muted);
            position: relative;
            z-index: 1;
        }
        .steps-note {
            background: rgba(31, 198, 207, .08);
            border: 1px solid rgba(31, 198, 207, .18);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            margin-top: 22px;
            font-size: 15px;
            color: var(--text-muted);
        }
        .steps-note strong {
            color: var(--primary);
        }
        .focus-section {
            background: var(--bg-night);
        }
        .focus-grid {
            display: grid;
            grid-template-columns: 1.3fr .9fr;
            gap: 20px;
        }
        .focus-card {
            position: relative;
            border-radius: var(--radius-img);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            border: 1px solid var(--line);
            background: var(--surface);
        }
        .focus-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .focus-card:hover img {
            transform: scale(1.03);
        }
        .focus-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 24px;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(0, 0, 0, .82) 100%);
            min-height: 45%;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }
        .focus-content h3 {
            color: #fff;
            margin: 10px 0 8px;
            font-size: 22px;
        }
        .focus-content p {
            color: rgba(255, 255, 255, .78);
            font-size: 14px;
            margin: 0;
        }
        .focus-side {
            display: grid;
            grid-template-rows: repeat(2, 1fr);
            gap: 20px;
        }
        .focus-side .focus-card {
            min-height: 170px;
        }
        .focus-side .focus-content h3 {
            font-size: 17px;
            margin: 8px 0 6px;
        }
        .focus-side .focus-content p {
            font-size: 13px;
        }
        .channel-strip {
            padding: 52px 0;
        }
        .channel-strip .panel {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 20px;
            padding: 24px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        .channel-strip .panel-label {
            color: var(--text-main);
            font-weight: 700;
            margin-right: 6px;
        }
        .channel-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 9px 18px;
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: 999px;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 600;
            transition: all .2s;
        }
        .channel-link i {
            color: var(--primary);
        }
        .channel-link:hover {
            background: rgba(31, 198, 207, .12);
            border-color: rgba(31, 198, 207, .4);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .faq-section {
            background: var(--bg-night);
        }
        .accordion {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 900px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--surface);
            border: 1px solid var(--line) !important;
            border-radius: 16px !important;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-size: 17px;
            font-weight: 600;
            padding: 19px 22px;
            border: none;
            transition: background .2s;
            border-radius: 0 !important;
        }
        .accordion-button:hover {
            background: rgba(255, 255, 255, .03);
        }
        .accordion-button:focus {
            box-shadow: none;
            border: none;
            outline: 2px solid var(--primary);
            outline-offset: -1px;
        }
        .accordion-button:not(.collapsed) {
            background: var(--surface-2);
            color: var(--primary);
            box-shadow: inset 3px 0 0 var(--primary);
        }
        .accordion-button::after {
            background: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            font-size: 18px;
            color: var(--primary);
            width: auto;
            height: auto;
        }
        .accordion-button:not(.collapsed)::after {
            content: "\f068";
            color: var(--accent);
            transform: none;
        }
        .accordion-body {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.9;
            padding: 4px 22px 22px;
            border-top: 1px solid var(--line);
        }
        .cta-section {
            position: relative;
            padding: clamp(72px, 8vw, 110px) 0;
            background: linear-gradient(115deg, rgba(11, 16, 32, .95), rgba(24, 35, 56, .76) 70%, rgba(11, 16, 32, .9)), url("/assets/images/backpic/back-3.png") center / cover;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(28px, 3.6vw, 44px);
            margin-bottom: 16px;
        }
        .cta-section p {
            max-width: 720px;
            margin: 0 auto 32px;
            color: #C7D2E6;
        }
        .cta-section .btn-cta {
            padding: .9rem 2.4rem;
            font-size: 17px;
        }
        .footer {
            background: #080D1A;
            border-top: 1px solid var(--line);
            padding: 64px 0 28px;
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
            display: inline-flex;
            align-items: center;
        }
        .footer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.9;
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-main);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color .2s;
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            margin-top: 38px;
            padding-top: 24px;
            font-size: 13px;
            color: var(--text-muted);
        }
        @media (max-width: 991.98px) {
            .site-nav .container {
                gap: 6px;
            }
            .site-nav .navbar-collapse {
                background: var(--surface);
                border: 1px solid var(--line);
                border-radius: 16px;
                padding: 16px;
                margin-top: 10px;
                box-shadow: var(--shadow-card);
            }
            .navbar-nav .nav-link {
                border-bottom: 1px solid var(--line);
                border-radius: 10px;
                margin: 0 0 4px;
                padding-left: 12px;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 10px;
                text-align: center;
            }
            .nav-cta .btn-cta {
                width: 100%;
            }
            .coverage-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .focus-grid {
                grid-template-columns: 1fr;
            }
            .focus-side {
                grid-template-columns: repeat(2, 1fr);
                grid-template-rows: none;
            }
            .match-row {
                grid-template-columns: 104px 1fr 132px;
                padding: 16px 18px;
                gap: 14px;
            }
        }
        @media (max-width: 767.98px) {
            .cat-hero {
                padding: 140px 0 64px;
                min-height: auto;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .match-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .match-date {
                text-align: left;
                display: flex;
                align-items: baseline;
                gap: 10px;
                border-radius: 10px;
            }
            .match-date strong {
                font-size: 28px;
            }
            .match-date span {
                margin-bottom: 0;
            }
            .match-side {
                justify-content: space-between;
                border-top: 1px solid var(--line);
                padding-top: 12px;
            }
            .focus-side {
                grid-template-columns: 1fr;
            }
            .coverage-item {
                padding: 20px;
            }
            .channel-strip .panel {
                align-items: flex-start;
            }
            .footer-bottom {
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .site-nav .navbar-brand {
                font-size: 19px;
            }
            .brand-official {
                font-size: 11px;
                margin-left: 4px;
            }
            h1 {
                font-size: 32px;
            }
            h2 {
                font-size: 24px;
            }
            .pill {
                padding: 6px 13px;
                font-size: 13px;
            }
            .coverage-num {
                min-width: 65px;
            }
            .section-head p {
                font-size: 15px;
            }
            .cta-section .btn {
                width: 100%;
            }
        }
        @media (min-width: 768px) and (max-width: 991px) {
            .match-main h3 {
                font-size: 18px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-night: #0B1020;
            --bg-body: #0D1424;
            --surface: #131C2F;
            --surface-2: #182338;
            --primary: #1FC6CF;
            --primary-dark: #17A6AF;
            --accent: #FF7A45;
            --accent-soft: rgba(255, 122, 69, .16);
            --star-yellow: #E9C46A;
            --nebula: #8B7CF6;
            --text-main: #E8EEFB;
            --text-muted: #9AABCB;
            --line: rgba(158, 184, 230, .16);
            --radius-card: 16px;
            --radius-media: 20px;
            --shadow-main: 0 16px 32px rgba(0, 0, 0, .24);
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --section-space: clamp(72px, 8vw, 110px);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg-body);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.7;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1160px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        .section {
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
        }
        .section-sm {
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: .08em;
            text-transform: uppercase;
            margin-bottom: .75rem;
        }
        .eyebrow::before {
            content: "";
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .section-title {
            font-size: clamp(28px, 3.2vw, 40px);
            font-weight: 750;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .section-title-line {
            width: 32px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
            border-radius: 4px;
            margin-bottom: 24px;
        }
        .section-sub {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 680px;
        }

        .btn {
            border-radius: 999px;
            font-weight: 600;
            transition: all .25s ease;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            line-height: 1.4;
        }
        .btn:focus,
        .btn-cta:focus,
        .btn-primary-custom:focus,
        .btn-ghost:focus {
            outline: none;
            box-shadow: 0 0 0 2px var(--bg-body), 0 0 0 4px var(--primary);
        }
        .btn-cta {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: .7rem 1.8rem;
            border-radius: 999px;
            font-size: 14px;
        }
        .btn-cta:hover {
            background: #ff8c5c;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(255, 122, 69, .25);
        }
        .btn-primary-custom {
            background: var(--primary);
            border: none;
            color: #07212B;
            padding: .9rem 2.2rem;
            font-size: 16px;
            border-radius: 999px;
            font-weight: 700;
        }
        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #07212B;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(31, 198, 207, .18);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: .85rem 2rem;
            border-radius: 999px;
            font-weight: 600;
        }
        .btn-ghost:hover {
            background: rgba(31, 198, 207, .1);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
        }

        .site-nav {
            background: transparent;
            transition: background .45s ease, backdrop-filter .45s ease, box-shadow .45s ease;
            padding-top: 16px;
            padding-bottom: 16px;
        }
        .site-nav.scrolled {
            background: rgba(13, 20, 36, .88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, .3);
            border-bottom: 1px solid var(--line);
            padding-top: 12px;
            padding-bottom: 12px;
        }
        .navbar-brand {
            display: inline-flex;
            align-items: center;
            font-weight: 800;
            font-size: 24px;
            letter-spacing: -0.02em;
            color: var(--text-main) !important;
            margin-right: 2rem;
        }
        .navbar-brand .brand-star {
            color: var(--primary);
        }
        .navbar-brand .brand-official {
            font-size: 10px;
            background: linear-gradient(135deg, var(--accent), #ff9a6a);
            color: #fff;
            padding: 2px 6px;
            border-radius: 6px;
            margin-left: 6px;
            font-weight: 700;
            letter-spacing: .04em;
            vertical-align: middle;
        }
        .navbar-nav {
            gap: .25rem;
        }
        .navbar-nav .nav-link {
            color: var(--text-muted);
            font-weight: 600;
            font-size: 15px;
            padding: .5rem .85rem;
            border-radius: 999px;
            transition: color .25s, background .25s;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text-main);
            background: rgba(31, 198, 207, .08);
        }
        .navbar-nav .nav-link.active {
            background: rgba(31, 198, 207, .14);
            color: var(--primary);
        }
        .navbar-nav .nav-cta {
            margin-left: .8rem;
        }
        .navbar-toggler {
            border: 1px solid var(--line);
            color: var(--text-main);
            border-radius: 10px;
            padding: .35rem .6rem;
            box-shadow: none !important;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(31, 198, 207, .25) !important;
            border-color: var(--primary);
        }
        .navbar-toggler i {
            font-size: 1.2rem;
            color: var(--text-main);
        }

        .page-hero {
            position: relative;
            padding: 150px 0 60px;
            background: var(--bg-night);
            overflow: hidden;
            border-bottom: 1px solid var(--line);
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(180deg, rgba(11, 16, 32, .35), rgba(11, 16, 32, .88)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            z-index: 1;
        }
        .page-hero-bg::after {
            content: "";
            position: absolute;
            right: 0;
            bottom: 0;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(31, 198, 207, .28), transparent 70%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: clamp(34px, 4.4vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            max-width: 720px;
        }
        .page-hero h1 .text-gradient {
            background: linear-gradient(120deg, var(--primary) 0%, var(--nebula) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .page-hero .hero-lead {
            color: var(--text-muted);
            font-size: 17px;
            max-width: 620px;
            margin-bottom: 28px;
        }
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: .4rem;
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb-custom li + li::before {
            content: " / ";
            color: var(--text-muted);
            opacity: .6;
            margin: 0 .3rem;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .active {
            color: var(--primary);
        }

        .highlight-video-li {
            border-bottom: 1px solid var(--line);
            font-size: 14px;
            color: var(--text-muted);
            padding: 10px 0;
            display: flex;
            align-items: center;
        }
        .highlight-video-li i {
            color: var(--primary);
            margin-right: 10px;
            font-size: 12px;
        }

        .video-card {
            position: relative;
            border-radius: var(--radius-media);
            overflow: hidden;
            background: var(--surface);
            border: 1px solid var(--line);
            cursor: pointer;
            transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
            will-change: transform;
        }
        .video-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-main);
            border-color: rgba(31, 198, 207, .35);
        }
        .video-card .media-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 3 / 4;
            background: var(--surface-2);
        }
        .video-card .media-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .video-card:hover .media-wrap img {
            transform: scale(1.04);
        }
        .video-card .gradient-mask {
            position: absolute;
            inset: auto 0 0 0;
            height: 65%;
            background: linear-gradient(180deg, transparent, rgba(5, 8, 18, .92));
            pointer-events: none;
        }
        .video-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11, 16, 32, .72);
            backdrop-filter: blur(6px);
            color: var(--text-main);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, .12);
        }
        .video-card .duration-badge {
            position: absolute;
            bottom: 12px;
            right: 12px;
            background: rgba(11, 16, 32, .78);
            color: var(--text-main);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 8px;
            letter-spacing: .03em;
        }
        .video-card .play-icon {
            position: absolute;
            top: 42%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 66px;
            height: 66px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .92);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-night);
            font-size: 22px;
            transition: transform .3s ease, opacity .3s ease;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .35);
            z-index: 2;
        }
        .video-card:hover .play-icon {
            transform: translate(-50%, -50%) scale(1.1);
        }
        .video-card .video-info {
            position: absolute;
            inset: auto 0 0 0;
            padding: 16px;
            z-index: 3;
        }
        .video-card .video-tag {
            font-size: 12px;
            color: var(--primary);
            margin-bottom: 6px;
            display: inline-block;
        }
        .video-card .video-title {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 4px;
        }
        .video-card .video-meta {
            font-size: 12px;
            color: rgba(255, 255, 255, .72);
        }

        .big-video-card {
            border-radius: 24px;
            overflow: hidden;
            position: relative;
            background: var(--surface);
            border: 1px solid var(--line);
            height: 100%;
            min-height: 560px;
            cursor: pointer;
            transition: transform .35s ease, box-shadow .35s ease;
        }
        .big-video-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-main);
        }
        .big-video-card .media-wrap {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
        }
        .big-video-card .media-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .big-video-card .card-grad {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 16, 32, 0) 20%, rgba(11, 16, 32, .92) 80%);
            z-index: 1;
        }
        .big-video-card .card-content {
            position: absolute;
            inset: auto 0 0 0;
            z-index: 2;
            padding: 28px;
        }
        .big-video-card .hot-label {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .big-video-card .hot-label i {
            font-size: 11px;
        }
        .big-video-card .play-large {
            position: absolute;
            top: 42%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 84px;
            height: 84px;
            background: rgba(255, 255, 255, .92);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-night);
            font-size: 30px;
            z-index: 2;
            box-shadow: 0 12px 32px rgba(0, 0, 0, .35);
            transition: transform .35s ease;
        }
        .big-video-card:hover .play-large {
            transform: translate(-50%, -50%) scale(1.08);
        }
        .big-video-card .tag-badge {
            display: inline-block;
            background: rgba(31, 198, 207, .2);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
            margin-bottom: 8px;
        }
        .big-video-card .title {
            font-size: clamp(20px, 2vw, 28px);
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 10px;
        }
        .big-video-card .desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 12px;
            max-width: 360px;
        }
        .big-video-card .info-row {
            display: flex;
            gap: 8px 18px;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            flex-wrap: wrap;
        }
        .big-video-card .info-row i {
            color: var(--star-yellow);
            margin-right: 4px;
        }

        .stack-video-card {
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            background: var(--surface);
            border: 1px solid var(--line);
            height: 220px;
            cursor: pointer;
            transition: transform .35s ease, box-shadow .35s ease;
        }
        .stack-video-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-main);
        }
        .stack-video-card .media-wrap {
            position: absolute;
            inset: 0;
        }
        .stack-video-card .media-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .stack-video-card .grad-mask {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 16, 32, .1) 30%, rgba(11, 16, 32, .92) 85%);
        }
        .stack-video-card .info {
            position: absolute;
            inset: auto 0 0 0;
            padding: 16px;
            z-index: 2;
        }
        .stack-video-card .d-tag {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 4px;
        }
        .stack-video-card .d-title {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 4px;
        }
        .stack-video-card .d-meta {
            font-size: 12px;
            color: rgba(255, 255, 255, .7);
            display: flex;
            gap: 12px;
        }
        .stack-video-card .play-mini {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .9);
            color: var(--bg-night);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            z-index: 3;
        }

        .feature-card {
            border-radius: var(--radius-card);
            height: 100%;
            transition: transform .3s ease;
        }
        .feature-card:hover {
            transform: translateY(-4px);
        }
        .feature-card .num-top {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: .1em;
            text-transform: uppercase;
        }
        .feature-card .icon-block {
            display: inline-flex;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            align-items: center;
            justify-content: center;
            background: rgba(31, 198, 207, .12);
            border: 1px solid rgba(31, 198, 207, .18);
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 18px;
        }

        .content-pill {
            display: inline-flex;
            background: rgba(31, 198, 207, .12);
            color: var(--primary);
            border: 1px solid rgba(31, 198, 207, .22);
            padding: .45rem 1.2rem;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            transition: all .25s ease;
            line-height: 1.4;
        }
        .content-pill:hover {
            background: rgba(31, 198, 207, .2);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .content-pill .icon-plus {
            margin-right: .35rem;
            color: var(--accent);
        }

        .topic-strip {
            background: var(--surface);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--line);
        }
        .accordion {
            --bs-accordion-bg: transparent;
            --bs-accordion-border-color: var(--line);
            --bs-accordion-btn-color: var(--text-main);
            --bs-accordion-active-color: var(--primary);
            --bs-accordion-active-bg: transparent;
        }
        .accordion-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            padding: 18px 20px;
            font-size: 16px;
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }
        .accordion-button:not(.collapsed) {
            background: rgba(31, 198, 207, .06);
            color: var(--primary);
        }
        .accordion-button::after {
            filter: invert(1) saturate(0) brightness(2);
            opacity: .7;
        }
        .accordion-body {
            padding: 4px 20px 20px;
            color: var(--text-muted);
            font-size: 15px;
            border-top: 1px solid var(--line);
            background: var(--surface);
        }

        .cta-band {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            padding: 56px 48px;
            margin-top: 95px;
            margin-bottom: 95px;
            background: var(--bg-night);
            border: 1px solid var(--line);
        }
        .cta-band-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: .25;
            z-index: 0;
        }
        .cta-band-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 40% 40%, rgba(31, 198, 207, .12), transparent 60%);
            z-index: 1;
        }
        .cta-band .content {
            position: relative;
            z-index: 2;
        }
        .cta-band h2 {
            font-size: clamp(28px, 3vw, 38px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            max-width: 520px;
        }
        .cta-band p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 500px;
            margin-bottom: 28px;
        }
        .cta-band .btn-cta {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: .95rem 2.4rem;
            font-size: 17px;
            border-radius: 999px;
            font-weight: 700;
            box-shadow: 0 8px 28px rgba(255, 122, 69, .3);
            transition: all .3s ease;
        }
        .cta-band .btn-cta:hover {
            background: #ff8c5c;
            transform: translateY(-3px);
            box-shadow: 0 14px 34px rgba(255, 122, 69, .38);
        }

        .footer {
            background: #070B14;
            border-top: 1px solid var(--line);
            padding: 60px 0 0;
        }
        .footer .footer-brand {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .footer .footer-brand .brand-star {
            color: var(--primary);
        }
        .footer .footer-brand .brand-official {
            font-size: 10px;
            background: var(--accent);
            color: #fff;
            padding: 2px 6px;
            border-radius: 6px;
            font-weight: 700;
            margin-left: 6px;
        }
        .footer p {
            color: var(--text-muted);
            font-size: 14px;
            max-width: 320px;
            line-height: 1.8;
        }
        .footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: .02em;
        }
        .footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color .25s, padding-left .25s;
        }
        .footer ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer ul li span {
            color: var(--text-muted);
            font-size: 14px;
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            margin-top: 36px;
            padding: 20px 0 24px;
            font-size: 13px;
            color: var(--text-muted);
        }
        @media (max-width: 991.98px) {
            .site-nav {
                background: rgba(13, 20, 36, .95);
                backdrop-filter: blur(16px);
                padding-top: 12px;
                padding-bottom: 12px;
            }
            .navbar-collapse {
                background: var(--surface);
                border: 1px solid var(--line);
                border-radius: 16px;
                margin-top: 14px;
                padding: 16px;
                box-shadow: 0 24px 48px rgba(0, 0, 0, .3);
            }
            .navbar-nav {
                gap: 2px;
            }
            .navbar-nav .nav-link {
                border-radius: 10px;
                padding: .7rem .8rem;
                border-bottom: 1px solid rgba(158, 184, 230, .07);
            }
            .navbar-nav .nav-link.active {
                background: rgba(31, 198, 207, .1);
            }
            .navbar-nav .nav-cta {
                margin-left: 0;
                margin-top: 10px;
            }
            .navbar-nav .nav-cta .btn-cta {
                width: 100%;
                padding: .7rem 1rem;
            }
        }
        @media (max-width: 767.98px) {
            .video-card .play-icon {
                width: 48px;
                height: 48px;
                font-size: 16px;
            }
            .big-video-card {
                min-height: 460px;
            }
            .big-video-card .card-content {
                padding: 20px;
            }
            .stack-video-card {
                height: 180px;
            }
            .topic-strip {
                padding: 24px;
            }
            .cta-band {
                padding: 40px 24px;
            }
        }
        @media (max-width: 575.98px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .page-hero {
                padding: 130px 0 44px;
            }
            .big-video-card {
                min-height: 380px;
            }
            .stack-video-card {
                height: 200px;
            }
            .navbar-brand {
                font-size: 20px;
            }
        }
        @media (max-width: 480px) {
            .video-card .video-title {
                font-size: 15px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-night: #0B1020;
            --bg-body: #0D1424;
            --surface: #131C2F;
            --surface-2: #182338;
            --primary: #1FC6CF;
            --primary-dark: #17A6AF;
            --accent: #FF7A45;
            --accent-soft: rgba(255, 122, 69, .16);
            --star-yellow: #E9C46A;
            --nebula: #8B7CF6;
            --text-main: #E8EEFB;
            --text-muted: #9AABCB;
            --line: rgba(158, 184, 230, .16);
            --radius: 16px;
            --radius-lg: 20px;
            --shadow: 0 16px 32px rgba(0, 0, 0, .24);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background-color: var(--bg-body);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

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

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

        .container {
            max-width: 1160px;
        }

        .site-nav {
            background: rgba(11, 16, 32, .72);
            border-bottom: 1px solid rgba(158, 184, 230, .12);
            padding: 12px 0;
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            transition: background .25s ease, box-shadow .25s ease;
        }

        .site-nav.scrolled {
            background: rgba(9, 13, 26, .92);
            box-shadow: var(--shadow);
        }

        .site-nav .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 22px;
            color: var(--text-main);
            line-height: 1.2;
        }

        .site-nav .navbar-brand .brand-star {
            color: var(--primary);
        }

        .brand-official {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent);
            border: 1px solid rgba(255, 122, 69, .35);
            border-radius: 999px;
            font-size: 11px;
            font-weight: 700;
            padding: 2px 9px;
            margin-left: 4px;
        }

        .site-nav .nav-link {
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            border-radius: 999px;
            padding: 8px 15px !important;
            transition: all .2s ease;
        }

        .site-nav .nav-link:hover {
            color: var(--text-main);
            background: rgba(31, 198, 207, .08);
        }

        .site-nav .nav-link.active {
            background: rgba(31, 198, 207, .14);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-cta {
            margin-left: 8px;
        }

        .btn {
            border-radius: 999px;
            font-weight: 700;
            transition: all .25s ease;
        }

        .btn-cta {
            background: var(--primary);
            color: #07212B;
            border: 0;
            padding: .55rem 1.5rem;
        }

        .btn-cta:hover {
            background: var(--primary-dark);
            color: #07212B;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(31, 198, 207, .22);
        }

        .navbar-toggler {
            border: 1px solid var(--line);
            border-radius: 999px;
            background: transparent;
            color: var(--text-main);
            padding: 6px 14px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px var(--primary);
        }

        .navbar-toggler i {
            font-size: 18px;
        }

        .section {
            padding-top: clamp(64px, 7vw, 92px);
            padding-bottom: clamp(64px, 7vw, 92px);
        }

        .scroll-mt {
            scroll-margin-top: 90px;
        }

        .eyebrow {
            font-size: 13px;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: .02em;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }

        .eyebrow::before {
            content: "";
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(255, 122, 69, .18);
        }

        .h2-title {
            font-size: clamp(28px, 3.2vw, 40px);
            font-weight: 750;
            line-height: 1.25;
            letter-spacing: 0;
            margin-bottom: 14px;
        }

        .section-title-line {
            width: 44px;
            height: 3px;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--primary), rgba(31, 198, 207, 0));
            margin: 18px 0 22px;
        }

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

        .cat-hero {
            position: relative;
            padding-top: 150px;
            padding-bottom: 58px;
            background-color: var(--bg-night);
            overflow: hidden;
        }

        .cat-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center 70%;
            opacity: .30;
        }

        .cat-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 16, 32, .62), var(--bg-night) 92%);
        }

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

        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            margin-bottom: 24px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb-custom a {
            color: var(--text-muted);
            padding: 3px 0;
        }

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

        .breadcrumb-custom .sep {
            color: rgba(154, 171, 203, .55);
            margin: 0 3px;
        }

        .cat-hero h1 {
            font-size: clamp(34px, 4.6vw, 56px);
            line-height: 1.18;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 16px;
            max-width: 900px;
        }

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

        .cat-hero .lead-copy {
            max-width: 680px;
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .hero-btn-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #07212B;
            border: 0;
            border-radius: 999px;
            padding: .88rem 2rem;
            font-weight: 700;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #07212B;
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(31, 198, 207, .25);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 1px solid rgba(31, 198, 207, .55);
            border-radius: 999px;
            padding: .88rem 2rem;
            font-weight: 700;
        }

        .btn-ghost:hover {
            background: rgba(31, 198, 207, .1);
            color: var(--primary);
        }

        .mini-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 36px;
            margin-top: 34px;
        }

        .mini-stats span {
            color: var(--text-muted);
        }

        .mini-stats strong {
            display: block;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 2px;
        }

        .focus-magazine {
            background: var(--bg-body);
        }

        .magazine-cover {
            position: relative;
            display: block;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            min-height: 420px;
            border: 1px solid var(--line);
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .magazine-cover:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }

        .magazine-cover img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            display: block;
        }

        .magazine-cover .cover-overlay {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 30px 22px 20px;
            background: linear-gradient(180deg, rgba(8, 14, 26, 0), rgba(8, 14, 26, .92));
        }

        .cover-tag {
            display: inline-block;
            background: rgba(31, 198, 207, .18);
            color: var(--primary);
            border: 1px solid rgba(31, 198, 207, .25);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .cover-overlay h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .article-reading {
            color: var(--text-muted);
            font-size: 14px;
        }

        .mini-news-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
            height: 100%;
        }

        .mini-news-item {
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
            position: relative;
            padding: 17px 20px;
            border: 1px solid var(--line);
            background: var(--surface);
            border-radius: var(--radius);
            transition: background .25s ease, border-color .25s ease, transform .25s ease;
        }

        .mini-news-item:hover {
            background: var(--surface-2);
            border-color: rgba(31, 198, 207, .3);
            transform: translateY(-3px);
        }

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

        .mini-news-meta .pill {
            background: var(--accent-soft);
            color: var(--accent);
            padding: 2px 10px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 12px;
        }

        .mini-news-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.45;
            margin: 0;
        }

        .mini-news-item h3 a {
            color: inherit;
        }

        .mini-news-item h3 a:hover {
            color: var(--primary);
        }

        .feed-panel {
            background: linear-gradient(180deg, rgba(19, 28, 47, .42), rgba(19, 28, 47, .16));
        }

        .news-feed-item {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 22px;
            padding: 22px 0;
            border-bottom: 1px solid var(--line);
            transition: background .2s ease;
        }

        .news-feed-item:first-of-type {
            padding-top: 0;
        }

        .news-feed-item:hover {
            background: rgba(31, 198, 207, .02);
        }

        .feed-thumb {
            display: block;
            border-radius: 14px;
            overflow: hidden;
            border: 1px solid var(--line);
            background: var(--surface-2);
        }

        .feed-thumb img {
            width: 200px;
            height: 132px;
            object-fit: cover;
        }

        .feed-body .tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            margin-bottom: 6px;
        }

        .feed-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .feed-body h3 a {
            color: inherit;
        }

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

        .feed-body p {
            color: var(--text-muted);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .feed-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }

        .category-pill {
            display: inline-block;
            background: rgba(31, 198, 207, .14);
            color: var(--primary);
            border-radius: 999px;
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
        }

        .pagination-custom {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
        }

        .page-button {
            min-width: 42px;
            text-align: center;
            padding: 8px 14px;
            background: var(--surface);
            border: 1px solid var(--line);
            color: var(--text-muted);
            border-radius: 999px;
            font-weight: 600;
            transition: all .2s ease;
        }

        .page-button:hover,
        .page-button.active {
            background: rgba(31, 198, 207, .14);
            color: var(--primary);
            border-color: rgba(31, 198, 207, .25);
        }

        .page-button.disabled {
            opacity: .38;
            pointer-events: none;
        }

        .topic-directions {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 22px;
            padding: clamp(20px, 4vw, 40px);
        }

        .topic-item {
            display: grid;
            grid-template-columns: auto 1fr auto;
            align-items: center;
            gap: 24px;
            padding: 19px 0;
            border-bottom: 1px solid var(--line);
        }

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

        .topic-index {
            font-size: 42px;
            font-weight: 800;
            opacity: .85;
            background: linear-gradient(135deg, var(--primary), var(--nebula));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            min-width: 60px;
        }

        .topic-title {
            color: var(--text-main);
        }

        .topic-title h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 5px;
        }

        .topic-title p {
            color: var(--text-muted);
            margin: 0;
            font-size: 14px;
        }

        .topic-action a {
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            white-space: nowrap;
        }

        .topic-action a i {
            margin-left: 5px;
            transition: transform .2s ease;
        }

        .topic-action a:hover i {
            transform: translateX(3px);
        }

        .faq-section {
            background: var(--bg-body);
        }

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

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-left: 3px solid var(--primary);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-size: 17px;
            font-weight: 700;
            padding: 19px 20px;
            box-shadow: none;
        }

        .faq-accordion .accordion-button::after {
            background-image: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            font-size: 14px;
            color: var(--primary);
            transform: rotate(0deg);
            transition: transform .25s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .faq-accordion .accordion-body {
            color: var(--text-muted);
            font-size: 15px;
            padding: 0 20px 20px;
            border-top: 1px solid var(--line);
            padding-top: 16px;
        }

        .bottom-cta {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            background-color: var(--surface-2);
            border: 1px solid var(--line);
            padding: clamp(32px, 5vw, 68px);
            text-align: center;
            background-image: url("/assets/images/backpic/back-2.webp");
            background-size: cover;
            background-position: center;
        }

        .bottom-cta::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(11, 16, 32, .82);
        }

        .bottom-cta .cta-inner {
            position: relative;
            z-index: 2;
        }

        .bottom-cta .eyebrow {
            justify-content: center;
        }

        .bottom-cta h2 {
            font-size: clamp(28px, 3.4vw, 42px);
            font-weight: 800;
            margin-bottom: 14px;
        }

        .bottom-cta p {
            color: var(--text-muted);
            margin: 0 auto 26px;
            max-width: 620px;
        }

        .footer {
            background: #080D1A;
            border-top: 1px solid var(--line);
            padding-top: 64px;
            padding-bottom: 26px;
            color: var(--text-muted);
        }

        .footer .footer-brand {
            display: block;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
        }

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

        .footer p {
            line-height: 1.85;
            font-size: 14px;
        }

        .footer h4 {
            color: var(--text-main);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer ul li {
            margin-bottom: 9px;
        }

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

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

        .footer-bottom {
            margin-top: 34px;
            padding-top: 20px;
            border-top: 1px solid rgba(158, 184, 230, .12);
            font-size: 13px;
            color: rgba(154, 171, 203, .8);
        }

        .section-method .stepCard {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 26px 24px;
            min-height: 210px;
            transition: all .25s ease;
        }

        .section-method .stepCard:hover {
            transform: translateY(-5px);
            border-color: rgba(31, 198, 207, .35);
            box-shadow: var(--shadow);
        }

        .section-method .stepNo {
            font-size: 46px;
            line-height: 1;
            font-weight: 800;
            color: transparent;
            -webkit-text-fill-color: transparent;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            margin-bottom: 16px;
        }

        .section-method .stepCard h3 {
            color: var(--text-main);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .section-method .stepCard p {
            color: var(--text-muted);
            font-size: 15px;
            margin: 0;
        }

        a:focus-visible,
        button:focus-visible,
        .accordion-button:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(31, 198, 207, .18) !important;
        }

        @media (max-width: 991px) {
            .site-nav .navbar-collapse {
                background: var(--surface);
                border: 1px solid var(--line);
                border-radius: 18px;
                margin-top: 12px;
                padding: 12px 10px;
            }

            .site-nav .nav-link {
                padding: 12px 16px !important;
                border-radius: 12px;
            }

            .nav-cta {
                margin: 8px 0 4px;
            }

            .nav-cta .btn-cta {
                width: 100%;
                text-align: center;
            }

            .news-feed-item {
                grid-template-columns: 1fr;
            }

            .feed-thumb img {
                width: 100%;
                height: auto;
                max-height: 190px;
            }

            .magazine-cover,
            .magazine-cover img {
                min-height: 360px;
                height: 360px;
            }
        }

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

            .feed-thumb img {
                height: 150px;
            }

            .cat-hero {
                padding-top: 120px;
                padding-bottom: 44px;
            }

            .cat-hero h1 {
                font-size: 34px;
            }

            .topic-item {
                grid-template-columns: 44px 1fr;
                gap: 12px 16px;
            }

            .topic-index {
                font-size: 32px;
                min-width: 44px;
            }

            .topic-action a {
                grid-column: 2;
                text-align: left;
            }

            .mini-stats {
                gap: 16px 22px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .magazine-cover,
            .magazine-cover img {
                min-height: 300px;
                height: 300px;
            }

            .cover-overlay h3 {
                font-size: 18px;
            }

            .mini-news-item {
                padding: 14px 15px;
            }

            .mini-news-item h3 {
                font-size: 15px;
            }

            .feed-body h3 {
                font-size: 18px;
            }

            .feed-body p {
                -webkit-line-clamp: 3;
                line-clamp: 3;
            }

            .cat-hero h1 {
                font-size: 29px;
            }

            .btn-primary-custom,
            .btn-ghost {
                width: 100%;
                justify-content: center;
            }

            .topic-directions {
                padding: 16px;
            }

            .topic-title h3 {
                font-size: 17px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-night: #0B1020;
            --bg-body: #0D1424;
            --surface: #131C2F;
            --surface-2: #182338;
            --primary: #1FC6CF;
            --primary-dark: #17A6AF;
            --accent: #FF7A45;
            --accent-soft: rgba(255, 122, 69, .16);
            --star-yellow: #E9C46A;
            --nebula: #8B7CF6;
            --text-main: #E8EEFB;
            --text-muted: #9AABCB;
            --line: rgba(158, 184, 230, .16);
            --radius: 16px;
            --radius-lg: 20px;
            --shadow: 0 16px 32px rgba(0, 0, 0, .24);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.9;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: #79E0E6;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        .accordion-button:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(31, 198, 207, .16);
        }

        .container {
            max-width: 1160px;
        }

        .page-main {
            padding-top: 86px;
        }

        /* ---------- 导航 ---------- */
        .site-nav {
            background: rgba(11, 16, 32, .86);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(158, 184, 230, .08);
            padding: 12px 0;
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-nav.nav-scrolled {
            background: rgba(11, 16, 32, .96);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .28);
        }

        .site-nav .navbar-brand {
            display: inline-flex;
            align-items: center;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0;
            padding: 0;
            margin-right: 1rem;
        }

        .brand-star {
            color: var(--primary);
        }

        .brand-official {
            display: inline-flex;
            align-items: center;
            margin-left: .55rem;
            padding: .08rem .45rem;
            border-radius: 8px;
            background: var(--accent);
            color: #fff;
            font-size: .68rem;
            font-weight: 700;
            line-height: 1.5;
            vertical-align: middle;
        }

        .site-nav .nav-link {
            color: var(--text-main);
            font-weight: 600;
            font-size: 14.5px;
            padding: .55rem 1.1rem;
            margin: 0 3px;
            border-radius: 999px;
            transition: color .2s ease, background .2s ease;
        }

        .site-nav .nav-link:hover,
        .site-nav .nav-link:focus {
            color: var(--primary);
            background: rgba(31, 198, 207, .09);
        }

        .site-nav .nav-link.active {
            color: var(--primary);
            background: rgba(31, 198, 207, .14);
        }

        .site-nav .nav-cta {
            margin-left: .6rem;
            list-style: none;
        }

        .navbar-toggler {
            border: 1px solid var(--line);
            color: var(--text-main);
            border-radius: 12px;
            padding: .45rem .65rem;
        }

        .navbar-toggler:hover,
        .navbar-toggler:focus {
            border-color: var(--primary);
        }

        .navbar-toggler-icon {
            background-image: none;
            color: var(--text-main);
        }

        @media (max-width: 991.98px) {
            .site-nav {
                padding: 10px 0;
            }

            .navbar-collapse {
                background: var(--surface);
                border: 1px solid var(--line);
                border-radius: 20px;
                padding: 1rem .9rem;
                margin-top: .8rem;
                box-shadow: var(--shadow);
            }

            .site-nav .nav-item {
                border-bottom: 1px solid var(--line);
            }

            .site-nav .nav-item:last-child {
                border-bottom: 0;
            }

            .site-nav .nav-link {
                border-radius: 12px;
                margin: 3px 0;
                padding: .8rem 1rem;
            }

            .site-nav .nav-cta {
                margin-left: 0;
                margin-top: .85rem;
                text-align: center;
            }
        }

        /* ---------- 按钮 ---------- */
        .btn {
            border-radius: 999px;
            font-weight: 700;
            transition: all .2s ease;
            border: 0;
        }

        .btn-cta {
            background: var(--accent);
            color: #fff;
            padding: .65rem 1.45rem;
            box-shadow: 0 8px 18px rgba(255, 122, 69, .18);
        }

        .btn-cta:hover,
        .btn-cta:focus {
            background: #FF935F;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(255, 122, 69, .26);
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(31, 198, 207, .62);
            color: var(--primary);
            padding: .65rem 1.45rem;
        }

        .btn-ghost:hover,
        .btn-ghost:focus {
            background: rgba(31, 198, 207, .1);
            color: #9BF0F5;
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: .85rem 2.2rem;
            font-size: 1.05rem;
        }

        .btn-sm {
            padding: .45rem 1.1rem;
            font-size: .92rem;
        }

        /* ---------- 通用区块 ---------- */
        .section {
            padding: clamp(64px, 8vw, 96px) 0;
        }

        .section-tight {
            padding: 46px 0;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .04em;
            margin-bottom: .7rem;
        }

        .eyebrow::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 3px rgba(31, 198, 207, .18);
        }

        .section-heading {
            margin-bottom: 2.6rem;
        }

        .section-title {
            font-size: clamp(28px, 3.2vw, 40px);
            font-weight: 750;
            line-height: 1.25;
            margin-bottom: 0;
            color: var(--text-main);
        }

        .section-title::after {
            content: "";
            display: block;
            width: 44px;
            height: 3px;
            margin-top: 18px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary), transparent);
        }

        .section-sub {
            color: var(--text-muted);
            max-width: 720px;
            margin-top: .8rem;
            margin-bottom: 0;
        }

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

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

        /* ---------- 页头横幅 ---------- */
        .page-hero {
            position: relative;
            background:
                radial-gradient(circle at 86% 16%, rgba(31, 198, 207, .32), transparent 22%),
                radial-gradient(circle at 12% 78%, rgba(139, 124, 246, .2), transparent 28%),
                linear-gradient(180deg, rgba(11, 16, 32, .45), rgba(13, 20, 36, .97) 86%),
                url("/assets/images/backpic/back-2.webp");
            background-position: center, center, center, center;
            background-size: auto, auto, auto, cover;
            padding: 76px 0 98px;
            border-bottom: 1px solid var(--line);
            margin-bottom: -24px;
        }

        .breadcrumb-line {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: .55rem;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 1.4rem;
        }

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

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

        .breadcrumb-line .sep {
            color: rgba(233, 196, 106, .72);
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            padding: .4rem 1rem;
            background: rgba(31, 198, 207, .1);
            border: 1px solid rgba(31, 198, 207, .24);
            border-radius: 999px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 1.2rem;
        }

        .page-hero h1 {
            font-size: clamp(40px, 5vw, 62px);
            font-weight: 800;
            line-height: 1.15;
            color: var(--text-main);
            margin-bottom: 1.2rem;
        }

        .page-hero h1 .dot-sep {
            color: var(--primary);
        }

        .hero-lead {
            color: #C2D0EA;
            font-size: 17px;
            line-height: 1.9;
            max-width: 720px;
            margin-bottom: 1.8rem;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: .9rem;
            margin-bottom: 1.6rem;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: .7rem;
        }

        .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            background: rgba(13, 22, 38, .75);
            border: 1px solid var(--line);
            padding: .38rem 1rem;
            border-radius: 999px;
            font-size: 13.5px;
            color: var(--text-muted);
        }

        .hero-tags i {
            color: var(--star-yellow);
        }

        /* ---------- 评分摘要条 ---------- */
        .score-strip {
            position: relative;
            z-index: 3;
            padding: 38px 0 18px;
        }

        .score-panel {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 1.6rem 1.8rem;
            box-shadow: var(--shadow);
        }

        .score-block {
            display: flex;
            align-items: center;
            gap: 1rem;
            min-height: 78px;
        }

        .score-block + .score-block {
            border-left: 1px solid var(--line);
            padding-left: 1.6rem;
        }

        @media (max-width: 991.98px) {
            .score-block + .score-block {
                border-left: 0;
                border-top: 1px solid var(--line);
                padding-left: 0;
                padding-top: 1.2rem;
            }
        }

        .score-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--star-yellow);
            line-height: 1;
        }

        .score-block i {
            font-size: 1.8rem;
            color: var(--primary);
        }

        .score-muted {
            color: var(--text-muted);
            font-size: 14px;
        }

        .score-label {
            color: var(--text-main);
            font-weight: 700;
        }

        .stars {
            color: var(--star-yellow);
            font-size: 13px;
            letter-spacing: 1px;
        }

        /* ---------- 口碑卡片墙 ---------- */
        .review-section {
            padding-top: 86px;
        }

        .review-spot {
            position: relative;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
            will-change: transform;
        }

        .review-spot:hover {
            transform: translateY(-6px);
            border-color: rgba(31, 198, 207, .36);
            box-shadow: 0 18px 40px rgba(0, 0, 0, .34);
        }

        .review-spot--image {
            background: #0D1626;
        }

        .review-spot__media {
            height: 100%;
            min-height: 260px;
        }

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

        .review-spot__body {
            padding: 1.8rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .review-tag {
            display: inline-flex;
            align-self: flex-start;
            align-items: center;
            gap: .3rem;
            padding: .3rem .9rem;
            border-radius: 999px;
            background: rgba(31, 198, 207, .1);
            border: 1px solid rgba(31, 198, 207, .22);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .review-spot h3 {
            font-size: 1.45rem;
            font-weight: 750;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: .8rem;
        }

        .review-spot p {
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: .75rem;
        }

        .review-author__avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--nebula));
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            flex: 0 0 42px;
        }

        .review-author strong {
            display: block;
            color: var(--text-main);
            font-size: 14.5px;
            line-height: 1.3;
        }

        .review-author small {
            color: var(--text-muted);
            font-size: 12.5px;
        }

        .review-spot--accent {
            background: linear-gradient(155deg, rgba(255, 122, 69, .1), rgba(31, 198, 207, .08));
            border-color: rgba(255, 122, 69, .2);
            padding: 1.8rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .review-quote {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: var(--accent-soft);
            border: 1px solid rgba(255, 122, 69, .24);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.4rem;
            margin-bottom: 1rem;
        }

        .review-spot--accent h3 {
            color: var(--text-main);
        }

        .review-mini {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 1.6rem;
            height: 100%;
            transition: transform .25s ease, background .25s ease, border-color .25s ease;
            will-change: transform;
        }

        .review-mini:hover {
            transform: translateY(-5px);
            background: var(--surface-2);
            border-color: rgba(31, 198, 207, .26);
        }

        .review-mini .review-tag {
            margin-bottom: .75rem;
        }

        .review-mini h4 {
            font-size: 17px;
            font-weight: 750;
            margin-bottom: .75rem;
            color: var(--text-main);
        }

        .review-mini p {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 1.1rem;
        }

        .review-mini .meta-line {
            display: flex;
            align-items: center;
            gap: .5rem;
            color: var(--text-muted);
            font-size: 13px;
        }

        .stagger-row .stagger-item:nth-child(2) {
            transform: translateY(16px);
        }

        @media(max-width:991.98px) {
            .stagger-row .stagger-item:nth-child(2) {
                transform: none;
            }
        }

        /* ---------- 使用路径 ---------- */
        .guide-section {
            background: linear-gradient(180deg, rgba(19, 28, 47, .2), rgba(19, 28, 47, .55));
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .step-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 1.4rem 1.5rem;
            display: flex;
            gap: 1.1rem;
            align-items: flex-start;
            transition: background .25s ease, border-color .25s ease, transform .25s ease;
            height: 100%;
        }

        .step-card:hover {
            background: var(--surface-2);
            border-color: rgba(31, 198, 207, .3);
            transform: translateY(-4px);
        }

        .step-num {
            flex: 0 0 44px;
            width: 44px;
            height: 44px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--primary);
            background: rgba(31, 198, 207, .12);
            border: 1px solid rgba(31, 198, 207, .28);
        }

        .step-card h4 {
            margin-bottom: .45rem;
            font-weight: 750;
            font-size: 17px;
            color: var(--text-main);
        }

        .step-card p {
            margin: 0;
            color: var(--text-muted);
            font-size: 14.5px;
            line-height: 1.75;
        }

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

        .accordion-faq .accordion-item {
            border: 1px solid var(--line) !important;
            background: var(--surface);
            border-radius: var(--radius) !important;
            overflow: hidden;
            margin-bottom: 12px;
            transition: border-color .2s ease;
        }

        .accordion-faq .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(31, 198, 207, .42) !important;
            box-shadow: inset 3px 0 0 var(--primary);
        }

        .accordion-faq .accordion-button {
            background: var(--surface);
            color: var(--text-main);
            font-weight: 700;
            font-size: 16px;
            padding: 1.05rem 1.3rem;
            box-shadow: none;
            border-radius: 0;
        }

        .accordion-faq .accordion-button:not(.collapsed) {
            background: rgba(31, 198, 207, .08);
            color: var(--primary);
        }

        .accordion-faq .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231FC6CF'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
            background-size: 1rem;
            background-position: center;
            background-repeat: no-repeat;
            opacity: .82;
        }

        .accordion-faq .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            opacity: 1;
        }

        .accordion-faq .accordion-body {
            color: var(--text-muted);
            padding: 0 1.3rem 1.3rem;
            line-height: 1.9;
        }

        /* ---------- 留言表单 ---------- */
        .contact-section {
            background: radial-gradient(circle at 82% 26%, rgba(31, 198, 207, .12), transparent 30%), var(--bg-night);
        }

        .contact-panel {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 24px;
            padding: 2.4rem;
            box-shadow: var(--shadow);
        }

        .contact-panel h3 {
            font-size: clamp(24px, 2.6vw, 32px);
            font-weight: 750;
            color: var(--text-main);
            margin-bottom: .9rem;
            line-height: 1.3;
        }

        .contact-panel .intro-text {
            color: var(--text-muted);
            margin-bottom: 1.4rem;
        }

        .feature-mini {
            display: flex;
            align-items: center;
            gap: .8rem;
            padding: .42rem 0;
            color: var(--text-muted);
            font-size: 14.5px;
        }

        .feature-mini i {
            color: var(--primary);
            font-size: 1rem;
            width: 18px;
            text-align: center;
        }

        .form-label {
            color: var(--text-muted);
            font-weight: 600;
            font-size: 14px;
        }

        .form-control {
            background: #0D1626;
            border: 1px solid var(--line);
            color: var(--text-main);
            border-radius: 14px;
            padding: .8rem 1rem;
            box-shadow: none;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .form-control::placeholder {
            color: #7C8EB0;
        }

        .form-control:focus {
            background: #0B1020;
            border-color: var(--primary);
            color: var(--text-main);
            box-shadow: 0 0 0 3px rgba(31, 198, 207, .15);
        }

        textarea.form-control {
            resize: vertical;
        }

        .btn-submit {
            background: var(--primary);
            color: #07212B;
            padding: .8rem 2rem;
            font-weight: 700;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            transition: all .2s ease;
        }

        .btn-submit:hover {
            background: #45D6DE;
            color: #07212B;
            transform: translateY(-2px);
        }

        /* ---------- 底部 CTA ---------- */
        .cta-band {
            position: relative;
            background:
                linear-gradient(180deg, rgba(11, 16, 32, .82), rgba(11, 16, 32, .95)),
                url("/assets/images/backpic/back-3.png");
            background-position: center;
            background-size: cover;
            padding: clamp(76px, 9vw, 128px) 0;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .cta-band h2 {
            font-size: clamp(28px, 3.4vw, 44px);
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.25;
            margin-bottom: 1rem;
        }

        .cta-band p {
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 1.8rem;
        }

        .cta-band .btn-cta {
            box-shadow: 0 0 0 6px rgba(255, 122, 69, .12), 0 16px 34px rgba(255, 122, 69, .28);
        }

        /* ---------- 页脚 ---------- */
        .footer {
            background: #080D18;
            padding: 74px 0 26px;
            border-top: 1px solid var(--line);
            color: var(--text-muted);
        }

        .footer .footer-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: .8rem;
        }

        .footer .footer-brand .brand-official {
            font-size: .72rem;
        }

        .footer p {
            font-size: 14.5px;
            color: var(--text-muted);
            max-width: 340px;
        }

        .footer h4 {
            color: var(--text-main);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 1rem;
        }

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

        .footer ul li {
            margin-bottom: .55rem;
        }

        .footer ul a {
            color: var(--text-muted);
            font-size: 14.5px;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--line);
            margin-top: 2.2rem;
            padding-top: 1.5rem;
            font-size: 13px;
            color: #7C8AA8;
        }

        .footer-bottom span {
            line-height: 1.8;
        }

        /* ---------- 响应式补充 ---------- */
        @media (max-width: 767.98px) {
            .page-main {
                padding-top: 72px;
            }

            .page-hero {
                padding: 40px 0 64px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .section {
                padding: 56px 0;
            }

            .review-spot {
                min-height: auto;
            }

            .review-spot__media {
                min-height: 220px;
            }

            .score-block {
                min-height: auto;
            }

            .contact-panel {
                padding: 1.6rem;
            }

            .cta-band {
                padding: 68px 0;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-tags {
                gap: .45rem;
            }

            .hero-tags span {
                padding: .3rem .75rem;
                font-size: 12.5px;
            }

            .review-spot__body {
                padding: 1.3rem;
            }

            .score-panel {
                padding: 1.2rem;
            }

            .contact-panel {
                padding: 1.2rem;
            }
        }