/* roulang page: index */
:root {
            --fn-bg: #0B0F14;
            --fn-bg-elev: #111820;
            --fn-card: #121A23;
            --fn-card-hover: #17212c;
            --fn-primary: #2CE5C4;
            --fn-primary-soft: rgba(44, 229, 196, 0.12);
            --fn-violet: #7C5CFF;
            --fn-amber: #FFB547;
            --fn-danger: #FF4D6A;
            --fn-nav-bg: #1F2A36;
            --fn-text: #E6EEF5;
            --fn-text-muted: #8B9DAD;
            --fn-text-weak: #5F7180;
            --fn-border: rgba(255, 255, 255, 0.08);
            --fn-border-light: rgba(255, 255, 255, 0.14);
            --fn-radius: 14px;
            --fn-radius-sm: 10px;
            --fn-radius-btn: 9px;
            --fn-shadow: 0 4px 22px rgba(0, 0, 0, 0.35);
            --fn-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(44, 229, 196, 0.14);
            --fn-transition: 0.22s ease;
            --fn-font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --fn-max-width: 1220px;
            --fn-section-pad: 76px 0;
            --fn-gutter: 1.25rem;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--fn-font-sans);
            background: var(--fn-bg);
            color: var(--fn-text);
            line-height: 1.75;
            font-size: 15px;
            min-height: 100vh;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--fn-font-sans);
            font-weight: 800;
            color: var(--fn-text);
            letter-spacing: -0.01em;
        }
        a {
            text-decoration: none;
            color: var(--fn-primary);
            transition: color var(--fn-transition);
        }
        a:hover {
            color: #4eeed0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--fn-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: var(--fn-max-width);
            padding-left: var(--fn-gutter);
            padding-right: var(--fn-gutter);
            margin: 0 auto;
        }
        section {
            padding: var(--fn-section-pad);
            position: relative;
        }
        .section-alt {
            background: var(--fn-bg-elev);
        }
        .section-title {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 0.7rem;
            line-height: 1.35;
        }
        .section-sub {
            color: var(--fn-text-muted);
            font-size: 15px;
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 2rem;
        }
        .section-head {
            margin-bottom: 2.2rem;
        }
        .text-primary-fn {
            color: var(--fn-primary) !important;
        }
        .text-amber {
            color: var(--fn-amber) !important;
        }
        .text-danger-fn {
            color: var(--fn-danger) !important;
        }
        .badge-fn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.2);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-amber {
            background: rgba(255, 181, 71, 0.12);
            color: var(--fn-amber);
            border: 1px solid rgba(255, 181, 71, 0.22);
        }
        .badge-violet {
            background: rgba(124, 92, 255, 0.12);
            color: #a992ff;
            border: 1px solid rgba(124, 92, 255, 0.22);
        }
        .btn-fn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--fn-primary);
            color: #08110f;
            font-weight: 700;
            font-size: 15px;
            padding: 11px 26px;
            border-radius: var(--fn-radius-btn);
            border: none;
            transition: all var(--fn-transition);
            box-shadow: 0 4px 16px rgba(44, 229, 196, 0.22);
            text-decoration: none;
        }
        .btn-fn:hover {
            background: #4eeed0;
            color: #08110f;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(44, 229, 196, 0.32);
        }
        .btn-fn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--fn-text);
            border: 1px solid var(--fn-border-light);
            padding: 10px 24px;
            border-radius: var(--fn-radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--fn-transition);
            text-decoration: none;
        }
        .btn-fn-outline:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(44, 229, 196, 0.12);
        }
        .btn-fn-sm {
            padding: 7px 18px;
            font-size: 13px;
        }
        .btn-fn-violet {
            background: var(--fn-violet);
            color: #fff;
            box-shadow: 0 4px 16px rgba(124, 92, 255, 0.2);
        }
        .btn-fn-violet:hover {
            background: #9478ff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-fn-amber {
            background: var(--fn-amber);
            color: #1a1206;
            box-shadow: 0 4px 16px rgba(255, 181, 71, 0.2);
        }
        .btn-fn-amber:hover {
            background: #ffc56b;
            color: #1a1206;
            transform: translateY(-2px);
        }
        .card-fn {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            box-shadow: var(--fn-shadow);
            transition: all var(--fn-transition);
            overflow: hidden;
            height: 100%;
        }
        .card-fn:hover {
            background: var(--fn-card-hover);
            box-shadow: var(--fn-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(44, 229, 196, 0.16);
        }
        .card-body-fn {
            padding: 1.4rem 1.5rem 1.5rem;
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #0a0f14;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card-fn:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 15, 20, 0.65) 100%);
            pointer-events: none;
        }
        .tag-fn {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 6px;
            background: rgba(44, 229, 196, 0.1);
            color: var(--fn-primary);
            letter-spacing: 0.02em;
        }
        .tag-violet {
            background: rgba(124, 92, 255, 0.12);
            color: #a992ff;
        }
        .tag-amber {
            background: rgba(255, 181, 71, 0.12);
            color: var(--fn-amber);
        }
        .divider {
            width: 100%;
            height: 1px;
            background: var(--fn-border);
            margin: 2.4rem 0;
        }
        .metric-value {
            font-size: 32px;
            font-weight: 900;
            color: var(--fn-primary);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .metric-label {
            font-size: 13px;
            color: var(--fn-text-muted);
            font-weight: 500;
            margin-top: 2px;
        }
        .grid-gap {
            row-gap: 1.6rem;
        }
        .list-unstyled-fn {
            list-style: none;
            padding-left: 0;
            margin: 0;
        }
        .text-weak {
            color: var(--fn-text-weak);
        }
        .fs-small {
            font-size: 13px;
        }
        .fs-mid {
            font-size: 14px;
        }

        /* ============ NAV ============ */
        .fn-nav {
            background: var(--fn-nav-bg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
        }
        .fn-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
            gap: 18px;
            flex-wrap: wrap;
        }
        .fn-nav-logo {
            font-size: 19px;
            font-weight: 900;
            color: var(--fn-text);
            letter-spacing: 0.04em;
            transition: color var(--fn-transition);
            white-space: nowrap;
        }
        .fn-nav-logo:hover {
            color: var(--fn-primary);
        }
        .fn-nav-logo .logo-ico {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--fn-primary);
            border-radius: 8px;
            color: #08110f;
            margin-right: 10px;
            font-size: 18px;
            flex-shrink: 0;
        }
        .fn-nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .fn-nav-links>li {
            position: relative;
        }
        .fn-nav-links>li>a {
            display: inline-flex;
            align-items: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--fn-text);
            padding: 8px 13px;
            border-radius: 7px;
            transition: all var(--fn-transition);
            letter-spacing: 0.02em;
        }
        .fn-nav-links>li>a:hover,
        .fn-nav-links>li>a.active {
            color: var(--fn-primary);
            background: rgba(44, 229, 196, 0.07);
        }
        .fn-nav-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .fn-nav-right a {
            font-size: 13px;
            font-weight: 600;
            color: var(--fn-text);
            padding: 6px 13px;
            border: 1px solid var(--fn-border-light);
            border-radius: 7px;
            transition: all var(--fn-transition);
            letter-spacing: 0.02em;
        }
        .fn-nav-right a:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
        }
        .fn-nav-toggle {
            background: transparent;
            border: 1px solid var(--fn-border-light);
            border-radius: 7px;
            color: var(--fn-text);
            width: 42px;
            height: 40px;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
        }
        .fn-mobile-menu {
            display: none;
            background: var(--fn-nav-bg);
            padding: 1rem 1.2rem;
            border-top: 1px solid var(--fn-border);
            flex-direction: column;
            gap: 4px;
        }
        .fn-mobile-menu a {
            font-size: 14px;
            font-weight: 600;
            color: var(--fn-text);
            padding: 9px 12px;
            border-radius: 6px;
            transition: all var(--fn-transition);
        }
        .fn-mobile-menu a:hover {
            color: var(--fn-primary);
            background: rgba(44, 229, 196, 0.06);
        }
        .fn-mobile-menu.open {
            display: flex;
        }
        @media (max-width: 991.98px) {
            .fn-nav-links {
                display: none;
            }
            .fn-nav-toggle {
                display: inline-flex;
            }
            .fn-nav-right a span {
                display: none;
            }
            .fn-nav-right a {
                padding: 6px 11px;
            }
        }
        @media (max-width: 575.98px) {
            .fn-nav-right a {
                font-size: 12px;
                padding: 5px 9px;
            }
            .fn-nav-logo {
                font-size: 16px;
            }
            .fn-nav-logo .logo-ico {
                width: 28px;
                height: 28px;
                font-size: 15px;
                margin-right: 6px;
            }
        }

        /* ============ HERO ============ */
        .hero-fn {
            background-image: url('/assets/images/0e74face75216cff.webp'), linear-gradient(135deg, #0B0F14 0%, #0d131a 55%, #111820 100%);
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            padding: 70px 0 56px;
        }
        .hero-fn::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 25% 30%, rgba(44, 229, 196, 0.08), transparent 55%),
                radial-gradient(ellipse at 78% 60%, rgba(124, 92, 255, 0.06), transparent 50%);
            pointer-events: none;
            z-index: 1;
        }
        .hero-fn>.container {
            position: relative;
            z-index: 2;
        }
        .hero-promo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 181, 71, 0.14);
            border: 1px solid rgba(255, 181, 71, 0.3);
            color: var(--fn-amber);
            padding: 5px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        .hero-title {
            font-size: clamp(28px, 4.2vw, 44px);
            font-weight: 900;
            line-height: 1.23;
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
            color: #f4f9fc;
        }
        .hero-title .accent {
            color: var(--fn-primary);
        }
        .hero-desc {
            font-size: 15px;
            color: var(--fn-text-muted);
            max-width: 590px;
            line-height: 1.9;
            margin-bottom: 1.8rem;
        }
        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 36px;
            background: rgba(18, 26, 35, 0.72);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 18px 22px;
            backdrop-filter: blur(6px);
        }
        .hero-promo-burst {
            position: absolute;
            top: 28px;
            right: 22px;
            background: var(--fn-danger);
            color: #fff;
            font-weight: 800;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            z-index: 3;
            box-shadow: 0 4px 14px rgba(255, 77, 106, 0.35);
        }
        @media (max-width: 767.98px) {
            .hero-fn {
                padding: 40px 0 36px;
            }
            .hero-desc {
                max-width: 100%;
            }
            .hero-metrics {
                gap: 14px 20px;
                padding: 14px 16px;
            }
            .metric-value {
                font-size: 24px;
            }
        }

        /* ============ SECTION DECOR ============ */
        .section-head-flex {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }
        .section-head-flex .section-title {
            margin-bottom: 0.3rem;
        }
        .section-head-flex .section-sub {
            margin-bottom: 0;
        }
        .speed-line {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 40px;
            background-image: linear-gradient(105deg, transparent 25%, rgba(44, 229, 196, 0.06) 45%, transparent 65%);
            background-size: 220% 100%;
            animation: speedShimmer 7s linear infinite;
            pointer-events: none;
            opacity: 0.5;
        }
        @keyframes speedShimmer {
            0% {
                background-position: -60% 0;
            }
            100% {
                background-position: 160% 0;
            }
        }

        /* ============ CALENDAR ============ */
        .calendar-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .calendar-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm);
            padding: 14px 18px;
            transition: all var(--fn-transition);
        }
        .calendar-item:hover {
            border-color: rgba(44, 229, 196, 0.25);
            background: var(--fn-card-hover);
            transform: translateX(4px);
        }
        .calendar-date {
            width: 64px;
            height: 56px;
            background: rgba(44, 229, 196, 0.09);
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--fn-primary);
            font-weight: 800;
        }
        .calendar-date .d {
            font-size: 20px;
            line-height: 1.1;
        }
        .calendar-date .m {
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.06em;
        }
        .calendar-item-content h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .calendar-item-content p {
            font-size: 13px;
            color: var(--fn-text-muted);
            margin: 0;
        }

        /* ============ TOPIC CARDS ============ */
        .topic-card {
            position: relative;
            border-radius: var(--fn-radius);
            overflow: hidden;
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            transition: all var(--fn-transition);
            height: 100%;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            border-color: rgba(44, 229, 196, 0.2);
            box-shadow: var(--fn-shadow-hover);
        }
        .topic-card .topic-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.04);
        }
        .topic-card .topic-body {
            padding: 1.3rem 1.5rem 1.5rem;
        }
        .topic-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .topic-card p {
            font-size: 13px;
            color: var(--fn-text-muted);
            margin: 0;
        }

        /* ============ OPINION ============ */
        .opinion-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1.5rem 1.6rem;
            transition: all var(--fn-transition);
            height: 100%;
        }
        .opinion-card:hover {
            background: var(--fn-card-hover);
            border-color: rgba(124, 92, 255, 0.22);
            transform: translateY(-3px);
            box-shadow: var(--fn-shadow-hover);
        }
        .opinion-card .op-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--fn-violet);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }
        .opinion-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 0.6rem;
            line-height: 1.45;
        }
        .opinion-card p {
            font-size: 13px;
            color: var(--fn-text-muted);
            margin: 0;
            line-height: 1.75;
        }

        /* ============ NEWS ============ */
        .news-list-item {
            display: flex;
            gap: 16px;
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm);
            padding: 14px 16px;
            transition: all var(--fn-transition);
            align-items: center;
        }
        .news-list-item:hover {
            background: var(--fn-card-hover);
            border-color: rgba(44, 229, 196, 0.18);
            transform: translateX(3px);
        }
        .news-list-item .news-thumb {
            width: 78px;
            height: 56px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .news-list-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-list-item .news-body {
            flex: 1;
        }
        .news-list-item h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .news-list-item .news-meta {
            font-size: 12px;
            color: var(--fn-text-weak);
        }

        /* ============ MEDIA GRID ============ */
        .media-card {
            border-radius: var(--fn-radius-sm);
            overflow: hidden;
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            transition: all var(--fn-transition);
            height: 100%;
        }
        .media-card:hover {
            border-color: rgba(44, 229, 196, 0.18);
            transform: translateY(-3px);
        }
        .media-card .media-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .media-card .media-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .media-card .media-body {
            padding: 1rem 1.1rem 1.1rem;
        }
        .media-card h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .media-card .media-src {
            font-size: 12px;
            color: var(--fn-text-weak);
        }

        /* ============ DATA ANALYTICS ============ */
        .data-panel {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1.6rem 1.8rem;
            height: 100%;
        }
        .data-panel .data-number {
            font-size: 38px;
            font-weight: 900;
            color: var(--fn-primary);
            line-height: 1.1;
        }
        .data-panel .data-title {
            font-size: 15px;
            font-weight: 700;
            margin: 8px 0 4px;
        }
        .data-panel .data-desc {
            font-size: 13px;
            color: var(--fn-text-muted);
        }
        .data-chip {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 6px;
            background: rgba(44, 229, 196, 0.1);
            color: var(--fn-primary);
            margin-top: 8px;
        }
        .data-chip.down {
            background: rgba(255, 77, 106, 0.12);
            color: var(--fn-danger);
        }

        /* ============ PLATFORM GUARANTEE ============ */
        .guarantee-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }
        .guarantee-item {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm);
            padding: 1.2rem 1.4rem;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all var(--fn-transition);
        }
        .guarantee-item:hover {
            border-color: rgba(44, 229, 196, 0.2);
            background: var(--fn-card-hover);
        }
        .guarantee-item .g-ico {
            width: 40px;
            height: 40px;
            background: rgba(44, 229, 196, 0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--fn-primary);
            font-size: 18px;
        }
        .guarantee-item h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .guarantee-item p {
            font-size: 12px;
            color: var(--fn-text-muted);
            margin: 0;
        }
        @media (max-width: 991.98px) {
            .guarantee-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 575.98px) {
            .guarantee-list {
                grid-template-columns: 1fr;
            }
        }

        /* ============ BRAND ============ */
        .brand-section {
            background: linear-gradient(160deg, #111820 0%, #0B0F14 70%);
            border-top: 1px solid var(--fn-border);
            border-bottom: 1px solid var(--fn-border);
        }
        .brand-text {
            font-size: 15px;
            line-height: 1.95;
            color: #c2d0da;
            margin-bottom: 1rem;
        }
        .brand-text strong {
            color: var(--fn-primary);
            font-weight: 700;
        }

        /* ============ PRICING ============ */
        .pricing-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1.8rem 1.6rem;
            transition: all var(--fn-transition);
            position: relative;
            height: 100%;
        }
        .pricing-card:hover {
            transform: translateY(-4px);
            border-color: rgba(44, 229, 196, 0.25);
            box-shadow: var(--fn-shadow-hover);
        }
        .pricing-card.featured {
            border-color: rgba(44, 229, 196, 0.35);
            background: linear-gradient(160deg, #142019 0%, #121A23 70%);
        }
        .pricing-card .price {
            font-size: 36px;
            font-weight: 900;
            color: var(--fn-primary);
            line-height: 1.1;
        }
        .pricing-card .price-suffix {
            font-size: 14px;
            color: var(--fn-text-muted);
            font-weight: 500;
        }
        .pricing-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .pricing-card ul {
            list-style: none;
            padding: 0;
            margin: 1rem 0 1.4rem;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .pricing-card ul li {
            font-size: 13px;
            color: var(--fn-text-muted);
            padding-left: 22px;
            position: relative;
        }
        .pricing-card ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--fn-primary);
            font-weight: 700;
        }

        /* ============ REVIEWS ============ */
        .review-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1.4rem 1.5rem;
            height: 100%;
            transition: all var(--fn-transition);
        }
        .review-card:hover {
            border-color: rgba(44, 229, 196, 0.16);
            background: var(--fn-card-hover);
            transform: translateY(-3px);
        }
        .review-card .review-head {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        .review-card .r-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--fn-primary), var(--fn-violet));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }
        .review-card .r-name {
            font-size: 13px;
            font-weight: 700;
            line-height: 1.3;
        }
        .review-card .r-rank {
            font-size: 11px;
            color: var(--fn-amber);
        }
        .review-card p {
            font-size: 13px;
            color: var(--fn-text-muted);
            line-height: 1.75;
            margin: 0;
        }

        /* ============ FAQ ============ */
        .accordion-fn .accordion-item {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm) !important;
            margin-bottom: 10px;
            overflow: hidden;
        }
        .accordion-fn .accordion-button {
            background: var(--fn-card);
            color: var(--fn-text);
            font-weight: 700;
            font-size: 14px;
            padding: 1rem 1.2rem;
            border: none;
            box-shadow: none;
            border-radius: var(--fn-radius-sm) !important;
        }
        .accordion-fn .accordion-button:not(.collapsed) {
            background: var(--fn-card-hover);
            color: var(--fn-primary);
            box-shadow: none;
        }
        .accordion-fn .accordion-button:focus {
            box-shadow: 0 0 0 2px rgba(44, 229, 196, 0.2);
        }
        .accordion-fn .accordion-button::after {
            filter: invert(1) brightness(0.8);
        }
        .accordion-fn .accordion-body {
            background: var(--fn-card);
            color: var(--fn-text-muted);
            font-size: 13px;
            padding: 0 1.2rem 1rem;
            line-height: 1.8;
        }

        /* ============ CTA ============ */
        .cta-section {
            background-image: url('/assets/images/ffd4ca9dcc213e05.webp'), linear-gradient(135deg, #0F151C, #0B0F14);
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 64px 0;
            text-align: center;
            border-top: 1px solid rgba(44, 229, 196, 0.1);
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 900;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: var(--fn-text-muted);
            max-width: 560px;
            margin: 0 auto 1.8rem;
            font-size: 15px;
            line-height: 1.85;
        }

        /* ============ SUBSCRIBE ============ */
        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            background: #0f161e;
            border: 1px solid var(--fn-border-light);
            border-radius: var(--fn-radius-btn);
            padding: 11px 18px;
            color: var(--fn-text);
            font-size: 14px;
            transition: border-color var(--fn-transition);
            min-width: 0;
        }
        .subscribe-form input:focus {
            border-color: var(--fn-primary);
            outline: none;
        }
        .subscribe-form input::placeholder {
            color: var(--fn-text-weak);
        }

        /* ============ FOOTER ============ */
        .fn-footer {
            background: #0a0e13;
            border-top: 1px solid var(--fn-border);
            padding: 48px 0 28px;
            color: var(--fn-text-muted);
        }
        .fn-footer .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--fn-text);
            margin-bottom: 1rem;
        }
        .fn-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 7px;
        }
        .fn-footer .footer-links a {
            font-size: 13px;
            color: var(--fn-text-muted);
            transition: color var(--fn-transition);
        }
        .fn-footer .footer-links a:hover {
            color: var(--fn-primary);
        }
        .fn-footer .footer-bottom {
            border-top: 1px solid var(--fn-border);
            margin-top: 2.4rem;
            padding-top: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--fn-text-weak);
        }
        .fn-footer .footer-bottom .brand {
            font-weight: 700;
            color: var(--fn-text);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 991.98px) {
            :root {
                --fn-section-pad: 56px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .hero-title {
                font-size: 28px;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --fn-section-pad: 42px 0;
                --fn-gutter: 0.9rem;
            }
            .section-title {
                font-size: 20px;
            }
            .hero-title {
                font-size: 24px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .calendar-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .news-list-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-list-item .news-thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
            }
            .pricing-card .price {
                font-size: 28px;
            }
        }
        @media (max-width: 575.98px) {
            .hero-metrics {
                gap: 12px 16px;
                padding: 12px 14px;
            }
            .metric-value {
                font-size: 22px;
            }
            .btn-fn,
            .btn-fn-outline {
                padding: 9px 18px;
                font-size: 14px;
                width: 100%;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .section-head-flex {
                flex-direction: column;
                align-items: flex-start;
            }
            .fn-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
            --fn-bg: #0B0F14;
            --fn-bg-elev: #111820;
            --fn-card: #121A23;
            --fn-card-hover: #17212c;
            --fn-primary: #2CE5C4;
            --fn-primary-soft: rgba(44, 229, 196, 0.12);
            --fn-violet: #7C5CFF;
            --fn-amber: #FFB547;
            --fn-danger: #FF4D6A;
            --fn-nav-bg: #1F2A36;
            --fn-text: #E6EEF5;
            --fn-text-muted: #8B9DAD;
            --fn-text-weak: #5F7180;
            --fn-border: rgba(255, 255, 255, 0.08);
            --fn-border-light: rgba(255, 255, 255, 0.14);
            --fn-radius: 14px;
            --fn-radius-sm: 10px;
            --fn-radius-btn: 9px;
            --fn-shadow: 0 4px 22px rgba(0, 0, 0, 0.35);
            --fn-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(44, 229, 196, 0.14);
            --fn-transition: 0.22s ease;
            --fn-font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --fn-max-width: 1220px;
            --fn-section-pad: 76px 0;
            --fn-gutter: 1.25rem;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--fn-font-sans);
            background: var(--fn-bg);
            color: var(--fn-text);
            line-height: 1.75;
            font-size: 15px;
            min-height: 100vh;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: var(--fn-primary); transition: color var(--fn-transition); }
        a:hover { color: #4eeed0; }
        img { max-width: 100%; height: auto; display: block; }
        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--fn-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container { max-width: var(--fn-max-width); padding-left: var(--fn-gutter); padding-right: var(--fn-gutter); margin: 0 auto; }
        section { padding: var(--fn-section-pad); position: relative; }
        .section-alt { background: var(--fn-bg-elev); }
        .section-title { font-size: 26px; font-weight: 800; letter-spacing: 0.01em; margin-bottom: 0.7rem; line-height: 1.35; }
        .section-sub { color: var(--fn-text-muted); font-size: 15px; max-width: 720px; line-height: 1.9; margin-bottom: 2rem; }
        .section-head { margin-bottom: 2.2rem; }
        .text-primary-fn { color: var(--fn-primary) !important; }
        .text-amber { color: var(--fn-amber) !important; }
        .text-danger-fn { color: var(--fn-danger) !important; }
        .badge-fn {
            display: inline-flex; align-items: center; gap: 6px;
            background: var(--fn-primary-soft); color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.2);
            padding: 4px 12px; border-radius: 999px;
            font-size: 13px; font-weight: 600; letter-spacing: 0.02em;
        }
        .badge-amber {
            background: rgba(255, 181, 71, 0.12); color: var(--fn-amber);
            border: 1px solid rgba(255, 181, 71, 0.22);
        }
        .badge-violet {
            background: rgba(124, 92, 255, 0.12); color: #a992ff;
            border: 1px solid rgba(124, 92, 255, 0.22);
        }
        .btn-fn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            background: var(--fn-primary); color: #08110f;
            font-weight: 700; font-size: 15px;
            padding: 11px 26px; border-radius: var(--fn-radius-btn);
            border: none; transition: all var(--fn-transition);
            box-shadow: 0 4px 16px rgba(44, 229, 196, 0.22); text-decoration: none;
        }
        .btn-fn:hover { background: #4eeed0; color: #08110f; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(44, 229, 196, 0.32); }
        .btn-fn-outline {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            background: transparent; color: var(--fn-text);
            border: 1px solid var(--fn-border-light);
            padding: 10px 24px; border-radius: var(--fn-radius-btn);
            font-weight: 600; font-size: 15px; transition: all var(--fn-transition); text-decoration: none;
        }
        .btn-fn-outline:hover { border-color: var(--fn-primary); color: var(--fn-primary); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(44, 229, 196, 0.12); }
        .btn-fn-sm { padding: 7px 18px; font-size: 13px; }
        .btn-fn-violet { background: var(--fn-violet); color: #fff; box-shadow: 0 4px 16px rgba(124, 92, 255, 0.2); }
        .btn-fn-violet:hover { background: #9478ff; color: #fff; transform: translateY(-2px); }

        /* Navigation */
        .fn-nav {
            background: var(--fn-nav-bg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.32);
        }
        .fn-nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 64px; gap: 1rem; }
        .fn-nav-logo {
            display: flex; align-items: center; gap: 10px;
            font-weight: 800; font-size: 18px; color: var(--fn-text);
            letter-spacing: 0.02em; white-space: nowrap;
        }
        .fn-nav-logo:hover { color: var(--fn-primary); }
        .logo-ico {
            width: 34px; height: 34px; border-radius: 8px;
            background: var(--fn-primary-soft);
            display: inline-flex; align-items: center; justify-content: center;
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.2);
            flex-shrink: 0;
        }
        .fn-nav-links {
            display: flex; align-items: center; gap: 0.2rem;
            list-style: none; margin: 0; padding: 0; flex-wrap: wrap;
        }
        .fn-nav-links li a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: 8px;
            color: var(--fn-text-muted);
            font-size: 14.5px;
            font-weight: 500;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }
        .fn-nav-links li a:hover { color: var(--fn-primary); background: rgba(44, 229, 196, 0.06); }
        .fn-nav-links li a.active { color: var(--fn-primary); background: var(--fn-primary-soft); font-weight: 600; }
        .fn-nav-right { display: flex; align-items: center; gap: 8px; }
        .fn-nav-right a {
            display: inline-flex; align-items: center;
            padding: 6px 14px;
            border: 1px solid var(--fn-border-light);
            border-radius: 999px;
            color: var(--fn-text);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--fn-transition);
            white-space: nowrap;
            background: transparent;
        }
        .fn-nav-right a:hover { border-color: var(--fn-primary); color: var(--fn-primary); }
        .fn-nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--fn-border-light);
            border-radius: 8px;
            color: var(--fn-text);
            font-size: 20px;
            padding: 4px 12px;
            cursor: pointer;
            transition: all var(--fn-transition);
        }
        .fn-nav-toggle:hover { border-color: var(--fn-primary); color: var(--fn-primary); }
        .fn-mobile-menu {
            display: none;
            background: var(--fn-nav-bg);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 10px 16px 16px;
            flex-direction: column;
            gap: 4px;
        }
        .fn-mobile-menu a {
            color: var(--fn-text-muted);
            font-size: 14px;
            padding: 8px 10px;
            border-radius: 6px;
            transition: all var(--fn-transition);
        }
        .fn-mobile-menu a:hover { color: var(--fn-primary); background: rgba(44, 229, 196, 0.06); }
        .fn-mobile-menu.show { display: flex; }

        /* Breadcrumb */
        .fn-breadcrumb {
            padding: 20px 0 0;
            font-size: 13px;
            color: var(--fn-text-weak);
        }
        .fn-breadcrumb ol {
            list-style: none; margin: 0; padding: 0;
            display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
        }
        .fn-breadcrumb li { display: flex; align-items: center; gap: 8px; }
        .fn-breadcrumb li + li::before { content: '/'; color: var(--fn-text-weak); }
        .fn-breadcrumb a { color: var(--fn-text-muted); }
        .fn-breadcrumb a:hover { color: var(--fn-primary); }
        .fn-breadcrumb .current { color: var(--fn-text); }

        /* Category header */
        .category-header {
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--fn-border);
            background: radial-gradient(1200px 300px at 70% -30%, rgba(44, 229, 196, 0.06), transparent 60%);
        }
        .category-header h1 {
            font-size: 36px;
            font-weight: 900;
            letter-spacing: 0.01em;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .category-header .lead {
            font-size: 16px;
            color: var(--fn-text-muted);
            max-width: 860px;
            line-height: 1.9;
        }

        /* Filter toolbar */
        .filter-toolbar {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 16px 20px;
            margin: 24px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
        }
        .filter-toolbar .filter-label {
            font-size: 13px;
            color: var(--fn-text-weak);
            font-weight: 500;
        }
        .filter-toolbar select, .filter-toolbar input {
            background: var(--fn-bg-elev);
            border: 1px solid var(--fn-border-light);
            border-radius: 8px;
            color: var(--fn-text);
            padding: 7px 14px;
            font-size: 13px;
            transition: border var(--fn-transition);
        }
        .filter-toolbar select:focus, .filter-toolbar input:focus {
            border-color: var(--fn-primary);
            outline: none;
        }
        .filter-toolbar .toolbar-spacer { flex: 1; }
        .filter-toolbar .result-count { font-size: 13px; color: var(--fn-text-weak); }

        /* Card list */
        .category-card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .category-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            overflow: hidden;
            transition: all var(--fn-transition);
            box-shadow: var(--fn-shadow);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            background: var(--fn-card-hover);
            border-color: rgba(44, 229, 196, 0.2);
            box-shadow: var(--fn-shadow-hover);
            transform: translateY(-3px);
        }
        .category-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .category-card:hover .category-card-img img { transform: scale(1.04); }
        .category-card-img .img-overlay {
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 15, 20, 0.7) 100%);
        }
        .category-card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
        .category-card-meta {
            display: flex; align-items: center; gap: 10px;
            font-size: 12.5px; color: var(--fn-text-weak);
            margin-bottom: 10px; flex-wrap: wrap;
        }
        .category-card-meta .date { display: inline-flex; align-items: center; gap: 4px; }
        .category-card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.5;
            color: var(--fn-text);
            transition: color var(--fn-transition);
        }
        .category-card:hover .category-card-title { color: var(--fn-primary); }
        .category-card-desc {
            font-size: 14px;
            color: var(--fn-text-muted);
            line-height: 1.8;
            margin-bottom: 14px;
            flex: 1;
        }
        .category-card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
        .category-card-tags span {
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--fn-text-muted);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .category-card-tags span.tag-highlight { background: rgba(44, 229, 196, 0.1); color: var(--fn-primary); border-color: rgba(44, 229, 196, 0.2); }
        .category-card-link {
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 14px;
            color: var(--fn-primary);
            transition: all var(--fn-transition);
        }
        .category-card-link:hover { color: #4eeed0; gap: 8px; }

        /* Pagination */
        .fn-pagination {
            display: flex; align-items: center; gap: 6px;
            justify-content: center; margin-top: 36px;
            flex-wrap: wrap;
        }
        .fn-pagination a, .fn-pagination span {
            display: inline-flex; align-items: center; justify-content: center;
            min-width: 38px; height: 38px; padding: 0 12px;
            border-radius: 8px; font-size: 14px;
            border: 1px solid var(--fn-border);
            color: var(--fn-text-muted);
            background: var(--fn-card);
            transition: all var(--fn-transition);
        }
        .fn-pagination a:hover { border-color: var(--fn-primary); color: var(--fn-primary); }
        .fn-pagination .current {
            background: var(--fn-primary); color: #08110f;
            border-color: var(--fn-primary); font-weight: 700;
        }
        .fn-pagination .disabled {
            opacity: 0.4; pointer-events: none;
        }

        /* Hot topics */
        .hot-topics {
            background: var(--fn-bg-elev);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 24px;
        }
        .hot-topics h3 {
            font-size: 18px; font-weight: 700; margin-bottom: 16px;
            display: flex; align-items: center; gap: 8px;
        }
        .hot-topic-list {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
        }
        .hot-topic-item {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm);
            padding: 14px 16px;
            transition: all var(--fn-transition);
            display: flex; align-items: center; gap: 12px;
        }
        .hot-topic-item:hover {
            border-color: rgba(44, 229, 196, 0.25);
            background: var(--fn-card-hover);
            transform: translateY(-2px);
        }
        .hot-topic-rank {
            width: 28px; height: 28px;
            border-radius: 7px;
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
            display: flex; align-items: center; justify-content: center;
            font-weight: 800; font-size: 13px;
            flex-shrink: 0;
        }
        .hot-topic-item .topic-info { flex: 1; min-width: 0; }
        .hot-topic-item .topic-name { font-size: 14px; font-weight: 600; color: var(--fn-text); display: block; }
        .hot-topic-item .topic-count { font-size: 12px; color: var(--fn-text-weak); }

        /* CTA section */
        .cta-section {
            background: radial-gradient(900px 300px at 50% -30%, rgba(44, 229, 196, 0.12), transparent 70%), var(--fn-bg-elev);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 36px 32px;
            text-align: center;
        }
        .cta-section h3 {
            font-size: 24px; font-weight: 800; margin-bottom: 10px;
        }
        .cta-section p {
            color: var(--fn-text-muted); font-size: 15px; margin-bottom: 22px;
            max-width: 640px; margin-left: auto; margin-right: auto;
        }

        /* SEO data block */
        .seo-data-block {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 24px;
            font-size: 14px;
            color: var(--fn-text-muted);
            line-height: 1.9;
        }
        .seo-data-block h3 {
            font-size: 17px; font-weight: 700; color: var(--fn-text);
            margin-bottom: 12px;
            display: flex; align-items: center; gap: 8px;
        }
        .seo-data-block .data-stats {
            display: flex; flex-wrap: wrap; gap: 20px 32px; margin-top: 16px;
        }
        .seo-data-block .data-stat-item {
            display: flex; align-items: baseline; gap: 8px;
        }
        .seo-data-block .data-stat-num {
            font-size: 24px; font-weight: 800; color: var(--fn-primary);
        }
        .seo-data-block .data-stat-label { font-size: 13px; color: var(--fn-text-weak); }

        /* Footer */
        .fn-footer {
            background: var(--fn-nav-bg);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 0 28px;
            margin-top: 48px;
            font-size: 14px;
        }
        .footer-title {
            font-weight: 700; font-size: 16px; color: var(--fn-text);
            margin-bottom: 14px;
        }
        .footer-links { list-style: none; margin: 0; padding: 0; }
        .footer-links li { margin-bottom: 8px; }
        .footer-links a { color: var(--fn-text-muted); font-size: 14px; transition: color var(--fn-transition); }
        .footer-links a:hover { color: var(--fn-primary); }
        .subscribe-form { display: flex; gap: 8px; }
        .subscribe-form input {
            flex: 1;
            background: var(--fn-bg-elev);
            border: 1px solid var(--fn-border-light);
            border-radius: 8px;
            padding: 9px 14px;
            color: var(--fn-text);
            font-size: 14px;
            transition: border var(--fn-transition);
        }
        .subscribe-form input:focus { border-color: var(--fn-primary); outline: none; }
        .subscribe-form input::placeholder { color: var(--fn-text-weak); }
        .footer-bottom {
            display: flex; flex-wrap: wrap; gap: 8px;
            justify-content: space-between; align-items: center;
            padding-top: 24px; margin-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px; color: var(--fn-text-weak);
        }
        .footer-bottom .brand { color: var(--fn-primary); font-weight: 600; }
        .fs-mid { font-size: 14.5px; }
        .fs-small { font-size: 13px; }
        .text-weak { color: var(--fn-text-weak); }
        .mb-3 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 0.5rem; }

        /* Responsive */
        @media (max-width: 992px) {
            :root { --fn-section-pad: 56px 0; }
            .fn-nav-links { display: none; }
            .fn-nav-right { display: none; }
            .fn-nav-toggle { display: inline-flex; }
            .category-card-grid { grid-template-columns: 1fr; }
            .hot-topic-list { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            :root { --fn-section-pad: 42px 0; --fn-gutter: 0.9rem; }
            .category-header h1 { font-size: 28px; }
            .filter-toolbar { flex-direction: column; align-items: flex-start; }
            .filter-toolbar .toolbar-spacer { display: none; }
            .hot-topic-list { grid-template-columns: 1fr; }
            .category-card-img { height: 170px; }
            .cta-section { padding: 26px 18px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .category-header { padding: 28px 0 24px; }
            .category-header h1 { font-size: 24px; }
            .category-card-body { padding: 16px 16px 18px; }
            .fn-pagination a, .fn-pagination span { min-width: 34px; height: 34px; padding: 0 8px; font-size: 13px; }
            .subscribe-form { flex-direction: column; }
            .btn-fn { padding: 9px 18px; font-size: 14px; }
            .btn-fn-outline { padding: 8px 16px; font-size: 14px; }
        }

/* roulang page: category2 */
:root {
      --fn-bg: #0B0F14;
      --fn-bg-elev: #111820;
      --fn-card: #121A23;
      --fn-card-hover: #17212c;
      --fn-primary: #2CE5C4;
      --fn-primary-soft: rgba(44, 229, 196, 0.12);
      --fn-violet: #7C5CFF;
      --fn-amber: #FFB547;
      --fn-danger: #FF4D6A;
      --fn-nav-bg: #1F2A36;
      --fn-text: #E6EEF5;
      --fn-text-muted: #8B9DAD;
      --fn-text-weak: #5F7180;
      --fn-border: rgba(255, 255, 255, 0.08);
      --fn-border-light: rgba(255, 255, 255, 0.14);
      --fn-radius: 14px;
      --fn-radius-sm: 10px;
      --fn-radius-btn: 9px;
      --fn-shadow: 0 4px 22px rgba(0, 0, 0, 0.35);
      --fn-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(44, 229, 196, 0.14);
      --fn-transition: 0.22s ease;
      --fn-font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
      --fn-max-width: 1220px;
      --fn-section-pad: 76px 0;
      --fn-gutter: 1.25rem;
    }
    @media (max-width: 768px) {
      :root { --fn-section-pad: 42px 0; --fn-gutter: 0.9rem; }
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--fn-font-sans);
      background: var(--fn-bg);
      color: var(--fn-text);
      line-height: 1.75;
      font-size: 15px;
      min-height: 100vh;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }
    a { text-decoration: none; color: var(--fn-primary); transition: color var(--fn-transition); }
    a:hover { color: #4eeed0; }
    img { max-width: 100%; height: auto; display: block; }
    button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 2px solid var(--fn-primary);
      outline-offset: 2px;
      border-radius: 4px;
    }
    .container {
      max-width: var(--fn-max-width);
      padding-left: var(--fn-gutter);
      padding-right: var(--fn-gutter);
      margin: 0 auto;
    }
    section { padding: var(--fn-section-pad); position: relative; }
    .section-alt { background: var(--fn-bg-elev); }
    .section-title {
      font-size: 26px;
      font-weight: 800;
      letter-spacing: 0.01em;
      margin-bottom: 0.7rem;
      line-height: 1.35;
    }
    .section-sub {
      color: var(--fn-text-muted);
      font-size: 15px;
      max-width: 720px;
      line-height: 1.9;
      margin-bottom: 2rem;
    }
    .section-head { margin-bottom: 2.2rem; }
    .text-primary-fn { color: var(--fn-primary) !important; }
    .text-amber { color: var(--fn-amber) !important; }
    .text-danger-fn { color: var(--fn-danger) !important; }
    .badge-fn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--fn-primary-soft);
      color: var(--fn-primary);
      border: 1px solid rgba(44, 229, 196, 0.2);
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.02em;
    }
    .badge-amber {
      background: rgba(255, 181, 71, 0.12);
      color: var(--fn-amber);
      border: 1px solid rgba(255, 181, 71, 0.22);
    }
    .badge-violet {
      background: rgba(124, 92, 255, 0.12);
      color: #a992ff;
      border: 1px solid rgba(124, 92, 255, 0.22);
    }
    .btn-fn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--fn-primary);
      color: #08110f;
      font-weight: 700;
      font-size: 15px;
      padding: 11px 26px;
      border-radius: var(--fn-radius-btn);
      border: none;
      transition: all var(--fn-transition);
      box-shadow: 0 4px 16px rgba(44, 229, 196, 0.22);
      text-decoration: none;
      cursor: pointer;
    }
    .btn-fn:hover {
      background: #4eeed0;
      color: #08110f;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(44, 229, 196, 0.32);
    }
    .btn-fn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: transparent;
      color: var(--fn-text);
      border: 1px solid var(--fn-border-light);
      padding: 10px 24px;
      border-radius: var(--fn-radius-btn);
      font-weight: 600;
      font-size: 15px;
      transition: all var(--fn-transition);
      text-decoration: none;
      cursor: pointer;
    }
    .btn-fn-outline:hover {
      border-color: var(--fn-primary);
      color: var(--fn-primary);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(44, 229, 196, 0.12);
    }
    .btn-fn-sm { padding: 7px 18px; font-size: 13px; }
    .btn-fn-violet {
      background: var(--fn-violet);
      color: #fff;
      box-shadow: 0 4px 16px rgba(124, 92, 255, 0.2);
    }
    .btn-fn-violet:hover {
      background: #9478ff;
      color: #fff;
      transform: translateY(-2px);
    }

    /* 导航 */
    .fn-nav {
      background: var(--fn-nav-bg);
      border-bottom: 1px solid rgba(255,255,255,0.05);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.25);
    }
    .fn-nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 64px;
      gap: 1.5rem;
    }
    .fn-nav-logo {
      display: flex;
      align-items: center;
      gap: 9px;
      color: var(--fn-text);
      font-weight: 800;
      font-size: 18px;
      letter-spacing: 0.02em;
      white-space: nowrap;
    }
    .fn-nav-logo:hover { color: var(--fn-primary); }
    .logo-ico {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--fn-primary-soft);
      color: var(--fn-primary);
      border: 1px solid rgba(44,229,196,0.2);
    }
    .fn-nav-links {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .fn-nav-links a {
      color: var(--fn-text-muted);
      font-size: 14px;
      font-weight: 500;
      padding: 4px 0;
      border-bottom: 2px solid transparent;
      transition: all var(--fn-transition);
    }
    .fn-nav-links a:hover {
      color: var(--fn-text);
      border-bottom-color: var(--fn-primary);
    }
    .fn-nav-links a.active {
      color: var(--fn-primary);
      border-bottom-color: var(--fn-primary);
    }
    .fn-nav-right {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .fn-nav-right a {
      color: var(--fn-text-muted);
      font-size: 13px;
      font-weight: 500;
      padding: 6px 12px;
      border: 1px solid transparent;
      border-radius: var(--fn-radius-btn);
      transition: all var(--fn-transition);
    }
    .fn-nav-right a:hover {
      color: var(--fn-primary);
      border-color: var(--fn-primary);
    }
    .fn-nav-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--fn-border-light);
      color: var(--fn-text);
      font-size: 20px;
      padding: 6px 10px;
      border-radius: 8px;
      cursor: pointer;
    }
    .fn-mobile-menu {
      display: none;
      flex-direction: column;
      background: var(--fn-nav-bg);
      padding: 10px 20px 20px;
      border-top: 1px solid var(--fn-border);
    }
    .fn-mobile-menu a {
      color: var(--fn-text-muted);
      padding: 10px 0;
      border-bottom: 1px solid var(--fn-border);
      font-size: 15px;
    }
    .fn-mobile-menu a.active {
      color: var(--fn-primary);
    }
    @media (max-width: 992px) {
      .fn-nav-links, .fn-nav-right { display: none; }
      .fn-nav-toggle { display: block; }
      .fn-mobile-menu.show { display: flex; }
    }

    /* 面包屑与分类头 */
    .category-hero {
      padding: 36px 0 24px;
      background: var(--fn-bg);
    }
    .breadcrumb-fn {
      font-size: 13px;
      color: var(--fn-text-weak);
      margin-bottom: 18px;
    }
    .breadcrumb-fn a {
      color: var(--fn-text-muted);
    }
    .breadcrumb-fn a:hover { color: var(--fn-primary); }
    .breadcrumb-fn span { margin: 0 6px; }
    .category-hero h1 {
      font-size: 34px;
      font-weight: 900;
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .category-hero p {
      color: var(--fn-text-muted);
      font-size: 16px;
      max-width: 800px;
      line-height: 1.9;
      margin-bottom: 0;
    }

    /* 筛选工具栏 */
    .filter-toolbar {
      padding: 20px 0;
      background: var(--fn-bg);
    }
    .toolbar-wrap {
      background: var(--fn-card);
      border: 1px solid var(--fn-border);
      border-radius: var(--fn-radius);
      padding: 16px 18px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }
    .toolbar-group {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .toolbar-group label {
      color: var(--fn-text-muted);
      font-size: 13px;
    }
    .filter-select, .filter-input {
      background: var(--fn-bg-elev);
      border: 1px solid var(--fn-border);
      color: var(--fn-text);
      border-radius: var(--fn-radius-sm);
      padding: 8px 12px;
      font-size: 14px;
      min-width: 130px;
    }
    .filter-select:focus, .filter-input:focus {
      border-color: var(--fn-primary);
      outline: none;
    }
    .filter-tabs {
      display: flex;
      gap: 4px;
      flex-wrap: wrap;
      margin-left: auto;
    }
    .filter-tab {
      background: transparent;
      border: 1px solid var(--fn-border);
      color: var(--fn-text-muted);
      border-radius: var(--fn-radius-sm);
      padding: 7px 14px;
      font-size: 13px;
      cursor: pointer;
      transition: all var(--fn-transition);
    }
    .filter-tab:hover, .filter-tab.active {
      background: var(--fn-primary-soft);
      border-color: var(--fn-primary);
      color: var(--fn-primary);
    }

    /* 列表卡片 */
    .list-section {
      padding-top: 20px;
    }
    .tactic-card {
      background: var(--fn-card);
      border: 1px solid var(--fn-border);
      border-radius: var(--fn-radius);
      overflow: hidden;
      height: 100%;
      transition: all var(--fn-transition);
      box-shadow: var(--fn-shadow);
    }
    .tactic-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--fn-shadow-hover);
      border-color: rgba(44,229,196,0.28);
      background: var(--fn-card-hover);
    }
    .tactic-card-img {
      aspect-ratio: 16/9;
      overflow: hidden;
      background: #0e141b;
    }
    .tactic-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .tactic-card:hover .tactic-card-img img {
      transform: scale(1.04);
    }
    .tactic-card-body {
      padding: 18px 18px 20px;
    }
    .tactic-card-title {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.5;
      margin-bottom: 8px;
      color: var(--fn-text);
    }
    .tactic-card-text {
      color: var(--fn-text-muted);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .tactic-card-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .tactic-date {
      color: var(--fn-text-weak);
      font-size: 12px;
    }
    .tactic-tag {
      background: rgba(124,92,255,0.12);
      color: #a992ff;
      border: 1px solid rgba(124,92,255,0.22);
      padding: 3px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 500;
    }

    /* 分页 */
    .pagination-section {
      padding-top: 30px;
      padding-bottom: 48px;
    }
    .pagination-fn {
      display: flex;
      justify-content: center;
      gap: 8px;
    }
    .page-link-fn {
      background: transparent;
      border: 1px solid var(--fn-border);
      color: var(--fn-text-muted);
      border-radius: var(--fn-radius-sm);
      padding: 8px 14px;
      font-size: 14px;
      transition: all var(--fn-transition);
    }
    .page-link-fn:hover, .page-link-fn.active {
      background: var(--fn-primary);
      color: #08110f;
      border-color: var(--fn-primary);
    }

    /* 热门专题 */
    .featured-topics {
      background: var(--fn-bg-elev);
    }
    .topic-card {
      background: var(--fn-card);
      border: 1px solid var(--fn-border);
      border-radius: var(--fn-radius);
      padding: 22px;
      height: 100%;
      transition: all var(--fn-transition);
    }
    .topic-card:hover {
      border-color: rgba(44,229,196,0.3);
      box-shadow: var(--fn-shadow-hover);
    }
    .topic-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--fn-text);
    }
    .topic-card p {
      color: var(--fn-text-muted);
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 14px;
    }
    .topic-link {
      font-size: 14px;
      font-weight: 600;
    }

    /* 战术应用场景 */
    .scenario-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    @media (max-width: 768px) {
      .scenario-grid { grid-template-columns: 1fr; }
    }
    .scenario-item {
      background: var(--fn-card);
      border: 1px solid var(--fn-border);
      border-radius: var(--fn-radius);
      padding: 24px;
      transition: all var(--fn-transition);
    }
    .scenario-item:hover {
      border-color: var(--fn-primary);
      box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    }
    .scenario-item h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--fn-primary);
    }
    .scenario-item p {
      color: var(--fn-text-muted);
      font-size: 15px;
      line-height: 1.9;
      margin-bottom: 0;
    }

    /* CTA */
    .cta-section {
      background: var(--fn-bg);
    }
    .cta-wrap {
      background: linear-gradient(135deg, #0b1f1a 0%, #111820 100%);
      border: 1px solid rgba(44,229,196,0.16);
      border-radius: var(--fn-radius);
      padding: 40px 32px;
      text-align: center;
    }
    .cta-wrap h2 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .cta-wrap p {
      color: var(--fn-text-muted);
      font-size: 16px;
      margin-bottom: 24px;
    }
    .subscribe-form {
      display: flex;
      gap: 10px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .subscribe-form input {
      background: var(--fn-bg-elev);
      border: 1px solid var(--fn-border);
      color: var(--fn-text);
      border-radius: var(--fn-radius-sm);
      padding: 10px 16px;
      font-size: 15px;
      min-width: 260px;
      max-width: 100%;
    }
    .subscribe-form input:focus {
      border-color: var(--fn-primary);
      outline: none;
    }

    /* 数据说明 */
    .data-note {
      background: var(--fn-bg-elev);
      border-top: 1px solid var(--fn-border);
    }
    .data-note-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    @media (max-width: 768px) {
      .data-note-grid { grid-template-columns: 1fr 1fr; }
    }
    .data-note-item {
      background: var(--fn-card);
      border: 1px solid var(--fn-border);
      border-radius: var(--fn-radius);
      padding: 22px 12px;
    }
    .data-note-item strong {
      display: block;
      font-size: 28px;
      font-weight: 900;
      color: var(--fn-primary);
      margin-bottom: 6px;
    }
    .data-note-item span {
      color: var(--fn-text-muted);
      font-size: 13px;
    }
    .data-note-text {
      color: var(--fn-text-weak);
      font-size: 13px;
      text-align: center;
      max-width: 700px;
      margin: 24px auto 0;
      line-height: 1.8;
    }

    /* 页脚 */
    .fn-footer {
      background: #0c1117;
      border-top: 1px solid var(--fn-border);
      padding: 48px 0 28px;
    }
    .footer-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--fn-text);
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--fn-text-muted);
      font-size: 14px;
    }
    .footer-links a:hover { color: var(--fn-primary); }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-top: 36px;
      padding-top: 20px;
      border-top: 1px solid var(--fn-border);
      color: var(--fn-text-weak);
      font-size: 13px;
    }
    .footer-bottom .brand { color: var(--fn-primary); font-weight: 600; }
    .fs-mid { font-size: 15px; }
    .fs-small { font-size: 13px; }
    .text-weak { color: var(--fn-text-weak); }
    .mb-2 { margin-bottom: 0.5rem; }
    .mb-3 { margin-bottom: 1rem; }

/* roulang page: category3 */
:root {
            --fn-bg: #0B0F14;
            --fn-bg-elev: #111820;
            --fn-card: #121A23;
            --fn-card-hover: #17212c;
            --fn-primary: #2CE5C4;
            --fn-primary-soft: rgba(44, 229, 196, 0.12);
            --fn-violet: #7C5CFF;
            --fn-amber: #FFB547;
            --fn-danger: #FF4D6A;
            --fn-nav-bg: #1F2A36;
            --fn-text: #E6EEF5;
            --fn-text-muted: #8B9DAD;
            --fn-text-weak: #5F7180;
            --fn-border: rgba(255, 255, 255, 0.08);
            --fn-border-light: rgba(255, 255, 255, 0.14);
            --fn-radius: 14px;
            --fn-radius-sm: 10px;
            --fn-radius-btn: 9px;
            --fn-shadow: 0 4px 22px rgba(0, 0, 0, 0.35);
            --fn-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(44, 229, 196, 0.14);
            --fn-transition: 0.22s ease;
            --fn-font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --fn-max-width: 1220px;
            --fn-section-pad: 76px 0;
            --fn-gutter: 1.25rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--fn-font-sans);
            background: var(--fn-bg);
            color: var(--fn-text);
            line-height: 1.75;
            font-size: 15px;
            min-height: 100vh;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: #4eeed0;
        }

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--fn-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--fn-max-width);
            padding-left: var(--fn-gutter);
            padding-right: var(--fn-gutter);
            margin: 0 auto;
        }

        section {
            padding: var(--fn-section-pad);
            position: relative;
        }

        .section-alt {
            background: var(--fn-bg-elev);
        }

        .section-title {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 0.7rem;
            line-height: 1.35;
        }

        .section-sub {
            color: var(--fn-text-muted);
            font-size: 15px;
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 2rem;
        }

        .section-head {
            margin-bottom: 2.2rem;
        }

        .text-primary-fn {
            color: var(--fn-primary) !important;
        }

        .text-amber {
            color: var(--fn-amber) !important;
        }

        .text-danger-fn {
            color: var(--fn-danger) !important;
        }

        .badge-fn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.2);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-amber {
            background: rgba(255, 181, 71, 0.12);
            color: var(--fn-amber);
            border: 1px solid rgba(255, 181, 71, 0.22);
        }

        .badge-violet {
            background: rgba(124, 92, 255, 0.12);
            color: #a992ff;
            border: 1px solid rgba(124, 92, 255, 0.22);
        }

        .btn-fn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--fn-primary);
            color: #08110f;
            font-weight: 700;
            font-size: 15px;
            padding: 11px 26px;
            border-radius: var(--fn-radius-btn);
            border: none;
            transition: all var(--fn-transition);
            box-shadow: 0 4px 16px rgba(44, 229, 196, 0.22);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-fn:hover {
            background: #4eeed0;
            color: #08110f;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(44, 229, 196, 0.32);
        }

        .btn-fn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--fn-text);
            border: 1px solid var(--fn-border-light);
            padding: 10px 24px;
            border-radius: var(--fn-radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--fn-transition);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-fn-outline:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(44, 229, 196, 0.12);
        }

        .btn-fn-sm {
            padding: 7px 18px;
            font-size: 13px;
        }

        .btn-fn-violet {
            background: var(--fn-violet);
            color: #fff;
            box-shadow: 0 4px 16px rgba(124, 92, 255, 0.2);
        }

        .btn-fn-violet:hover {
            background: #9478ff;
            color: #fff;
            transform: translateY(-2px);
        }

        .card-fn {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            box-shadow: var(--fn-shadow);
            transition: all var(--fn-transition);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card-fn:hover {
            background: var(--fn-card-hover);
            border-color: var(--fn-border-light);
            box-shadow: var(--fn-shadow-hover);
            transform: translateY(-3px);
        }

        .card-fn-body {
            padding: 1.2rem 1.25rem 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-fn-img {
            height: 180px;
            object-fit: cover;
            width: 100%;
            background: #0d1319;
        }

        .card-fn-title {
            font-size: 18px;
            font-weight: 800;
            color: var(--fn-text);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .card-fn-text {
            color: var(--fn-text-muted);
            font-size: 14px;
            line-height: 1.8;
            flex: 1;
        }

        .card-fn-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            margin-top: 0.9rem;
            font-size: 13px;
            color: var(--fn-text-weak);
        }

        .tag-fn {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--fn-border);
            color: var(--fn-text-muted);
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
        }

        .tag-fn:hover {
            background: var(--fn-primary-soft);
            border-color: rgba(44, 229, 196, 0.25);
            color: var(--fn-primary);
        }

        .fn-nav {
            background: var(--fn-nav-bg);
            border-bottom: 1px solid var(--fn-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 18px rgba(0, 0, 0, 0.24);
        }

        .fn-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 62px;
            flex-wrap: wrap;
            gap: 0.75rem 1rem;
            padding-top: 0.4rem;
            padding-bottom: 0.4rem;
        }

        .fn-nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
            text-decoration: none;
            white-space: nowrap;
        }

        .fn-nav-logo:hover {
            color: var(--fn-primary);
        }

        .logo-ico {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            color: var(--fn-primary);
            background: rgba(44, 229, 196, 0.1);
            border-radius: 6px;
        }

        .fn-nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.35rem;
            flex-wrap: wrap;
        }

        .fn-nav-links li a {
            display: inline-block;
            padding: 0.45rem 0.85rem;
            color: #cfdced;
            font-size: 14px;
            font-weight: 500;
            border-radius: 7px;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }

        .fn-nav-links li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .fn-nav-links li a.active {
            color: var(--fn-primary);
            background: rgba(44, 229, 196, 0.1);
            box-shadow: inset 0 0 0 1px rgba(44, 229, 196, 0.18);
        }

        .fn-nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .fn-nav-right a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.85rem;
            border: 1px solid var(--fn-border-light);
            border-radius: 7px;
            color: #c3d1e0;
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--fn-transition);
        }

        .fn-nav-right a:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            background: rgba(44, 229, 196, 0.08);
        }

        .fn-nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--fn-border-light);
            color: #e6eef5;
            font-size: 20px;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            cursor: pointer;
            line-height: 1;
            justify-content: center;
            align-items: center;
        }

        .fn-mobile-menu {
            display: none;
            background: var(--fn-nav-bg);
            border-top: 1px solid var(--fn-border);
            padding: 0.75rem 1rem 1rem;
            flex-direction: column;
            gap: 4px;
        }

        .fn-mobile-menu a {
            color: #cfdced;
            padding: 0.65rem 0.75rem;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
        }

        .fn-mobile-menu a:hover,
        .fn-mobile-menu a.active {
            background: rgba(44, 229, 196, 0.1);
            color: var(--fn-primary);
        }

        .fn-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--fn-text-weak);
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }

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

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

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

        .page-hero-sm {
            padding: 2.2rem 0 1.8rem;
            background: linear-gradient(135deg, #0d1320 0%, #0b0f14 70%);
            border-bottom: 1px solid var(--fn-border);
        }

        .page-hero-sm h1 {
            font-size: 32px;
            font-weight: 900;
            margin: 0.4rem 0 0.8rem;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .page-hero-sm .lead {
            color: var(--fn-text-muted);
            max-width: 820px;
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 0;
        }

        .fn-filter-bar {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1.1rem 1.2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 16px;
            box-shadow: var(--fn-shadow);
        }

        .fn-filter-bar label {
            font-size: 13px;
            color: var(--fn-text-muted);
            margin-right: 6px;
            white-space: nowrap;
        }

        .fn-filter-bar select {
            background: #0e151d;
            border: 1px solid var(--fn-border-light);
            color: var(--fn-text);
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            font-size: 13px;
            min-width: 110px;
        }

        .fn-filter-bar select:focus {
            border-color: var(--fn-primary);
        }

        .fn-pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .fn-pagination a,
        .fn-pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 8px;
            border-radius: 8px;
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            color: var(--fn-text-muted);
            font-size: 14px;
            transition: all var(--fn-transition);
            cursor: pointer;
            text-decoration: none;
        }

        .fn-pagination a:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            background: var(--fn-primary-soft);
        }

        .fn-pagination .current {
            background: var(--fn-primary);
            color: #08110f;
            border-color: var(--fn-primary);
            font-weight: 700;
        }

        .fn-pagination .disabled {
            opacity: 0.45;
            pointer-events: none;
        }

        .fn-recommend-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm);
            padding: 1rem 1.1rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            height: 100%;
            transition: all var(--fn-transition);
        }

        .fn-recommend-card:hover {
            border-color: var(--fn-border-light);
            background: var(--fn-card-hover);
        }

        .fn-recommend-card .rec-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--fn-text);
            line-height: 1.5;
        }

        .fn-recommend-card .rec-meta {
            font-size: 12px;
            color: var(--fn-text-weak);
        }

        .fn-data-note {
            background: #0e141c;
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1.4rem 1.5rem;
        }

        .fn-data-note .txt {
            color: var(--fn-text-muted);
            font-size: 14px;
            line-height: 1.9;
            margin-bottom: 0.8rem;
        }

        .fn-data-note .txt:last-child {
            margin-bottom: 0;
        }

        .fn-accordion .accordion-item {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm) !important;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }

        .fn-accordion .accordion-button {
            background: var(--fn-card);
            color: var(--fn-text);
            font-weight: 600;
            font-size: 15px;
            padding: 1rem 1.2rem;
            border: none;
            box-shadow: none;
            border-radius: var(--fn-radius-sm) !important;
        }

        .fn-accordion .accordion-button:not(.collapsed) {
            background: var(--fn-card-hover);
            color: var(--fn-primary);
        }

        .fn-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--fn-primary);
            outline-offset: -2px;
        }

        .fn-accordion .accordion-body {
            background: #0e151d;
            color: var(--fn-text-muted);
            font-size: 14px;
            line-height: 1.9;
            padding: 1rem 1.2rem 1.1rem;
        }

        .fn-cta-band {
            background: linear-gradient(135deg, #10202a 0%, #0b0f14 80%);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 2.2rem 2rem;
            text-align: left;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }

        .fn-cta-band h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }

        .fn-cta-band p {
            color: var(--fn-text-muted);
            max-width: 620px;
            margin-bottom: 0;
            font-size: 15px;
        }

        .fn-cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .fn-footer {
            background: #0c1219;
            border-top: 1px solid var(--fn-border);
            padding: 2.5rem 0 1.2rem;
            margin-top: 0;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-links a {
            color: var(--fn-text-muted);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .subscribe-form {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #0d1319;
            border: 1px solid var(--fn-border);
            border-radius: 8px;
            padding: 4px;
        }

        .subscribe-form input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            color: var(--fn-text);
            padding: 0.55rem 0.75rem;
            font-size: 14px;
            min-width: 0;
        }

        .subscribe-form input::placeholder {
            color: var(--fn-text-weak);
        }

        .subscribe-form input:focus {
            outline: none;
            box-shadow: none;
        }

        .subscribe-form:focus-within {
            border-color: var(--fn-primary);
        }

        .footer-bottom {
            margin-top: 2rem;
            padding-top: 1.2rem;
            border-top: 1px solid var(--fn-border);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            font-size: 13px;
            color: var(--fn-text-weak);
        }

        .footer-bottom .brand {
            color: var(--fn-text-muted);
            font-weight: 600;
        }

        .fs-small {
            font-size: 13px;
        }

        .fs-mid {
            font-size: 14px;
        }

        .text-weak {
            color: var(--fn-text-weak) !important;
        }

        @media (max-width: 1024px) {
            :root {
                --fn-section-pad: 56px 0;
                --fn-gutter: 1rem;
            }
            .fn-nav-links li a {
                padding: 0.4rem 0.7rem;
                font-size: 13px;
            }
            .fn-nav-right a {
                padding: 0.4rem 0.7rem;
                font-size: 12px;
            }
            .card-fn-img {
                height: 150px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --fn-section-pad: 42px 0;
                --fn-gutter: 0.9rem;
            }
            .fn-nav-toggle {
                display: inline-flex;
            }
            .fn-nav-links,
            .fn-nav-right {
                display: none;
            }
            .fn-mobile-menu.open {
                display: flex;
            }
            .page-hero-sm h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .fn-filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .fn-filter-bar select {
                width: 100%;
            }
            .fn-cta-band {
                padding: 1.5rem 1.2rem;
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .card-fn-img {
                height: 180px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --fn-section-pad: 36px 0;
                --fn-gutter: 0.75rem;
            }
            .page-hero-sm h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 20px;
            }
            .fn-pagination a,
            .fn-pagination span {
                min-width: 32px;
                height: 32px;
                font-size: 13px;
            }
            .fn-cta-actions .btn-fn,
            .fn-cta-actions .btn-fn-outline {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category4 */
:root {
            --fn-bg: #0B0F14;
            --fn-bg-elev: #111820;
            --fn-card: #121A23;
            --fn-card-hover: #17212c;
            --fn-primary: #2CE5C4;
            --fn-primary-soft: rgba(44, 229, 196, 0.12);
            --fn-violet: #7C5CFF;
            --fn-amber: #FFB547;
            --fn-danger: #FF4D6A;
            --fn-nav-bg: #1F2A36;
            --fn-text: #E6EEF5;
            --fn-text-muted: #8B9DAD;
            --fn-text-weak: #5F7180;
            --fn-border: rgba(255, 255, 255, 0.08);
            --fn-border-light: rgba(255, 255, 255, 0.14);
            --fn-radius: 14px;
            --fn-radius-sm: 10px;
            --fn-radius-btn: 9px;
            --fn-shadow: 0 4px 22px rgba(0, 0, 0, 0.35);
            --fn-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(44, 229, 196, 0.14);
            --fn-transition: 0.22s ease;
            --fn-font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --fn-max-width: 1220px;
            --fn-section-pad: 76px 0;
            --fn-gutter: 1.25rem;
        }

        @media (max-width: 991.98px) {
            :root {
                --fn-section-pad: 56px 0;
            }
        }

        @media (max-width: 575.98px) {
            :root {
                --fn-section-pad: 42px 0;
                --fn-gutter: 0.9rem;
            }
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--fn-font-sans);
            background: var(--fn-bg);
            color: var(--fn-text);
            line-height: 1.75;
            font-size: 15px;
            min-height: 100vh;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: #4eeed0;
        }

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--fn-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--fn-max-width);
            padding-left: var(--fn-gutter);
            padding-right: var(--fn-gutter);
            margin: 0 auto;
        }

        section {
            padding: var(--fn-section-pad);
            position: relative;
        }

        .section-alt {
            background: var(--fn-bg-elev);
        }

        .section-title {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 0.7rem;
            line-height: 1.35;
        }

        .section-sub {
            color: var(--fn-text-muted);
            font-size: 15px;
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 2rem;
        }

        .section-head {
            margin-bottom: 2.2rem;
        }

        .text-primary-fn {
            color: var(--fn-primary) !important;
        }

        .text-amber {
            color: var(--fn-amber) !important;
        }

        .text-danger-fn {
            color: var(--fn-danger) !important;
        }

        .badge-fn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.2);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-amber {
            background: rgba(255, 181, 71, 0.12);
            color: var(--fn-amber);
            border: 1px solid rgba(255, 181, 71, 0.22);
        }

        .badge-violet {
            background: rgba(124, 92, 255, 0.12);
            color: #a992ff;
            border: 1px solid rgba(124, 92, 255, 0.22);
        }

        .btn-fn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--fn-primary);
            color: #08110f;
            font-weight: 700;
            font-size: 15px;
            padding: 11px 26px;
            border-radius: var(--fn-radius-btn);
            border: none;
            transition: all var(--fn-transition);
            box-shadow: 0 4px 16px rgba(44, 229, 196, 0.22);
            text-decoration: none;
        }

        .btn-fn:hover {
            background: #4eeed0;
            color: #08110f;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(44, 229, 196, 0.32);
        }

        .btn-fn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--fn-text);
            border: 1px solid var(--fn-border-light);
            padding: 10px 24px;
            border-radius: var(--fn-radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--fn-transition);
            text-decoration: none;
        }

        .btn-fn-outline:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(44, 229, 196, 0.12);
        }

        .btn-fn-sm {
            padding: 7px 18px;
            font-size: 13px;
        }

        .btn-fn-violet {
            background: var(--fn-violet);
            color: #fff;
            box-shadow: 0 4px 16px rgba(124, 92, 255, 0.2);
        }

        .btn-fn-violet:hover {
            background: #9478ff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* 导航 */
        .fn-nav {
            background: var(--fn-nav-bg);
            border-bottom: 1px solid var(--fn-border);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.18);
        }

        .fn-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            min-height: 62px;
            padding-top: 0.5rem;
            padding-bottom: 0.5rem;
        }

        .fn-nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--fn-text);
            text-decoration: none;
            white-space: nowrap;
        }

        .fn-nav-logo:hover {
            color: var(--fn-primary);
        }

        .logo-ico {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.2);
            flex-shrink: 0;
        }

        .fn-nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .fn-nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 7px;
            font-size: 14px;
            font-weight: 500;
            color: var(--fn-text);
            text-decoration: none;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }

        .fn-nav-links li a:hover {
            color: var(--fn-primary);
            background: rgba(44, 229, 196, 0.06);
        }

        .fn-nav-links li a.active {
            color: var(--fn-primary);
            background: var(--fn-primary-soft);
            font-weight: 700;
        }

        .fn-nav-right {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .fn-nav-right a {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border: 1px solid var(--fn-border-light);
            border-radius: 7px;
            font-size: 13px;
            font-weight: 600;
            color: var(--fn-text);
            text-decoration: none;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }

        .fn-nav-right a:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            box-shadow: 0 0 0 1px rgba(44, 229, 196, 0.15);
        }

        .fn-nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--fn-border-light);
            color: var(--fn-text);
            border-radius: 7px;
            padding: 6px 12px;
            font-size: 20px;
            line-height: 1;
            cursor: pointer;
            transition: all var(--fn-transition);
        }

        .fn-nav-toggle:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
        }

        .fn-mobile-menu {
            display: none;
            padding: 0.75rem 1rem 1rem;
            background: var(--fn-nav-bg);
            border-top: 1px solid var(--fn-border);
            flex-direction: column;
            gap: 0.25rem;
        }

        .fn-mobile-menu.open {
            display: flex;
        }

        .fn-mobile-menu a {
            display: block;
            padding: 9px 12px;
            border-radius: 7px;
            color: var(--fn-text);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            transition: all var(--fn-transition);
        }

        .fn-mobile-menu a:hover {
            background: rgba(44, 229, 196, 0.08);
            color: var(--fn-primary);
        }

        .fn-mobile-menu a.active {
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
            font-weight: 700;
        }

        /* 分类页头部 */
        .fn-cat-head {
            padding: 40px 0 24px;
            background:
                radial-gradient(ellipse at 80% -20%, rgba(44, 229, 196, 0.08), transparent 55%),
                var(--fn-bg);
            border-bottom: 1px solid var(--fn-border);
        }

        .fn-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--fn-text-weak);
            margin-bottom: 1.2rem;
        }

        .fn-breadcrumb a {
            color: var(--fn-text-muted);
            text-decoration: none;
            transition: color var(--fn-transition);
        }

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

        .fn-breadcrumb .sep {
            color: var(--fn-text-weak);
            margin: 0 2px;
            font-size: 11px;
        }

        .fn-cat-head h1 {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 0.6rem;
            line-height: 1.3;
            color: var(--fn-text);
        }

        .fn-cat-head .cat-desc {
            color: var(--fn-text-muted);
            font-size: 15.5px;
            line-height: 1.85;
            max-width: 820px;
        }

        /* 筛选工具栏 */
        .fn-filter-bar {
            padding: 18px 0 0;
        }

        .fn-filter-panel {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
            box-shadow: var(--fn-shadow);
        }

        .fn-filter-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .fn-filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--fn-text-muted);
            margin-right: 4px;
            white-space: nowrap;
        }

        .fn-filter-btn {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 7px;
            border: 1px solid var(--fn-border);
            background: transparent;
            color: var(--fn-text-muted);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }

        .fn-filter-btn:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
        }

        .fn-filter-btn.active {
            background: var(--fn-primary-soft);
            border-color: rgba(44, 229, 196, 0.3);
            color: var(--fn-primary);
            font-weight: 700;
        }

        .fn-filter-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .fn-filter-search {
            position: relative;
        }

        .fn-filter-search input {
            background: var(--fn-bg);
            border: 1px solid var(--fn-border);
            border-radius: 7px;
            color: var(--fn-text);
            font-size: 13px;
            padding: 6px 14px 6px 34px;
            width: 190px;
            transition: all var(--fn-transition);
            font-family: var(--fn-font-sans);
        }

        .fn-filter-search input::placeholder {
            color: var(--fn-text-weak);
            font-size: 13px;
        }

        .fn-filter-search input:focus {
            border-color: var(--fn-primary);
            box-shadow: 0 0 0 2px rgba(44, 229, 196, 0.12);
            outline: none;
        }

        .fn-filter-search svg {
            position: absolute;
            left: 10px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--fn-text-weak);
            pointer-events: none;
        }

        .fn-filter-select {
            background: var(--fn-bg);
            border: 1px solid var(--fn-border);
            border-radius: 7px;
            color: var(--fn-text);
            font-size: 13px;
            padding: 6px 12px;
            cursor: pointer;
            font-family: var(--fn-font-sans);
            transition: all var(--fn-transition);
        }

        .fn-filter-select:focus {
            border-color: var(--fn-primary);
            outline: none;
            box-shadow: 0 0 0 2px rgba(44, 229, 196, 0.12);
        }

        /* 列表卡片 */
        .fn-card-list-section {
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .fn-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

        .fn-article-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            overflow: hidden;
            transition: all var(--fn-transition);
            box-shadow: var(--fn-shadow);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .fn-article-card:hover {
            transform: translateY(-4px);
            border-color: rgba(44, 229, 196, 0.3);
            box-shadow: var(--fn-shadow-hover);
        }

        .fn-article-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
            background: var(--fn-bg-elev);
        }

        .fn-article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .fn-article-card:hover .fn-article-cover img {
            transform: scale(1.04);
        }

        .fn-article-body {
            padding: 1rem 1.1rem 1.2rem;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 0.5rem;
        }

        .fn-article-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .fn-article-date {
            font-size: 12.5px;
            color: var(--fn-text-weak);
            white-space: nowrap;
        }

        .fn-article-card .fn-tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 11.5px;
            font-weight: 600;
            letter-spacing: 0.01em;
            background: rgba(44, 229, 196, 0.1);
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.18);
            white-space: nowrap;
        }

        .fn-article-card .fn-tag.tag-violet {
            background: rgba(124, 92, 255, 0.1);
            color: #a992ff;
            border-color: rgba(124, 92, 255, 0.2);
        }

        .fn-article-card .fn-tag.tag-amber {
            background: rgba(255, 181, 71, 0.1);
            color: var(--fn-amber);
            border-color: rgba(255, 181, 71, 0.2);
        }

        .fn-article-card .fn-article-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--fn-text);
            margin: 0;
            transition: color var(--fn-transition);
        }

        .fn-article-card:hover .fn-article-title {
            color: var(--fn-primary);
        }

        .fn-article-card .fn-article-summary {
            color: var(--fn-text-muted);
            font-size: 13.5px;
            line-height: 1.7;
            flex: 1;
            margin: 0;
        }

        .fn-article-link {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--fn-primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--fn-transition);
        }

        .fn-article-link:hover {
            color: #4eeed0;
            gap: 7px;
        }

        /* 分页 */
        .fn-pagination-wrap {
            padding-top: 20px;
            padding-bottom: 10px;
        }

        .fn-pagination {
            display: flex;
            align-items: center;
            gap: 6px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .fn-page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 12px;
            border-radius: 8px;
            border: 1px solid var(--fn-border);
            background: var(--fn-card);
            color: var(--fn-text-muted);
            font-size: 13.5px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--fn-transition);
        }

        .fn-page-link:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
        }

        .fn-page-link.active {
            background: var(--fn-primary);
            color: #08110f;
            border-color: var(--fn-primary);
        }

        .fn-page-link.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* 热门专题 */
        .fn-trending {
            background: var(--fn-bg-elev);
            border-top: 1px solid var(--fn-border);
            border-bottom: 1px solid var(--fn-border);
        }

        .fn-trending-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }

        .fn-trending-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm);
            overflow: hidden;
            transition: all var(--fn-transition);
        }

        .fn-trending-card:hover {
            border-color: rgba(44, 229, 196, 0.3);
            transform: translateY(-3px);
            box-shadow: var(--fn-shadow-hover);
        }

        .fn-trending-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--fn-bg-elev);
        }

        .fn-trending-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .fn-trending-card:hover .fn-trending-cover img {
            transform: scale(1.04);
        }

        .fn-trending-body {
            padding: 0.9rem 1rem 1rem;
        }

        .fn-trending-body .fn-trending-title {
            font-size: 14.5px;
            font-weight: 700;
            color: var(--fn-text);
            margin-bottom: 0.3rem;
            line-height: 1.45;
        }

        .fn-trending-body p {
            font-size: 12.5px;
            color: var(--fn-text-muted);
            margin: 0;
            line-height: 1.6;
        }

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

        .fn-accordion .accordion-item {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm) !important;
            margin-bottom: 0.7rem;
            overflow: hidden;
            box-shadow: var(--fn-shadow);
        }

        .fn-accordion .accordion-item:last-child {
            margin-bottom: 0;
        }

        .fn-accordion .accordion-button {
            background: var(--fn-card);
            color: var(--fn-text);
            font-weight: 700;
            font-size: 15px;
            padding: 1rem 1.2rem;
            border: none;
            box-shadow: none;
            transition: all var(--fn-transition);
            font-family: var(--fn-font-sans);
        }

        .fn-accordion .accordion-button:not(.collapsed) {
            background: var(--fn-card-hover);
            color: var(--fn-primary);
            box-shadow: none;
        }

        .fn-accordion .accordion-button:focus {
            box-shadow: 0 0 0 2px rgba(44, 229, 196, 0.15);
            border-radius: 8px;
        }

        .fn-accordion .accordion-button::after {
            filter: brightness(0) invert(0.7);
        }

        .fn-accordion .accordion-body {
            background: var(--fn-card);
            color: var(--fn-text-muted);
            font-size: 14px;
            line-height: 1.8;
            padding: 0.6rem 1.2rem 1.2rem;
        }

        /* CTA */
        .fn-cta-section {
            background:
                radial-gradient(ellipse at 50% 120%, rgba(44, 229, 196, 0.15), transparent 60%),
                radial-gradient(ellipse at 20% -20%, rgba(124, 92, 255, 0.08), transparent 50%),
                var(--fn-bg-elev);
            border-top: 1px solid var(--fn-border);
            border-bottom: 1px solid var(--fn-border);
        }

        .fn-cta-box {
            background: var(--fn-card);
            border: 1px solid var(--fn-border-light);
            border-radius: var(--fn-radius);
            padding: 2.4rem 2rem;
            text-align: center;
            box-shadow: var(--fn-shadow);
            max-width: 700px;
            margin: 0 auto;
        }

        .fn-cta-box h2 {
            font-size: 25px;
            font-weight: 800;
            margin-bottom: 0.6rem;
            color: var(--fn-text);
        }

        .fn-cta-box p {
            color: var(--fn-text-muted);
            font-size: 14.5px;
            line-height: 1.8;
            margin-bottom: 1.4rem;
        }

        .fn-cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        /* SEO 数据说明 */
        .fn-data-note {
            background: var(--fn-bg);
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .fn-data-note-box {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm);
            padding: 1.4rem 1.6rem;
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            flex-wrap: wrap;
        }

        .fn-data-note-box .fn-data-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--fn-primary-soft);
            border: 1px solid rgba(44, 229, 196, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--fn-primary);
        }

        .fn-data-note-box .fn-data-text {
            flex: 1;
            min-width: 260px;
        }

        .fn-data-note-box .fn-data-text h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--fn-text);
            margin-bottom: 0.4rem;
        }

        .fn-data-note-box .fn-data-text p {
            font-size: 13.5px;
            color: var(--fn-text-muted);
            line-height: 1.75;
            margin: 0;
        }

        /* 页脚 */
        .fn-footer {
            background: var(--fn-nav-bg);
            border-top: 1px solid var(--fn-border);
            padding: 48px 0 0;
            color: var(--fn-text-muted);
        }

        .fn-footer .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--fn-text);
            margin-bottom: 1rem;
        }

        .fn-footer .fs-mid {
            font-size: 14px;
            line-height: 1.8;
        }

        .fn-footer .fs-small {
            font-size: 13px;
            line-height: 1.6;
        }

        .fn-footer .text-weak {
            color: var(--fn-text-weak);
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .footer-links a {
            color: var(--fn-text-muted);
            font-size: 13.5px;
            text-decoration: none;
            transition: color var(--fn-transition);
        }

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

        .subscribe-form {
            display: flex;
            gap: 8px;
            margin-top: 0.6rem;
        }

        .subscribe-form input {
            flex: 1;
            background: var(--fn-bg);
            border: 1px solid var(--fn-border);
            border-radius: 7px;
            color: var(--fn-text);
            font-size: 13px;
            padding: 7px 14px;
            font-family: var(--fn-font-sans);
            transition: all var(--fn-transition);
            min-width: 0;
        }

        .subscribe-form input::placeholder {
            color: var(--fn-text-weak);
            font-size: 13px;
        }

        .subscribe-form input:focus {
            border-color: var(--fn-primary);
            box-shadow: 0 0 0 2px rgba(44, 229, 196, 0.12);
            outline: none;
        }

        .footer-bottom {
            border-top: 1px solid var(--fn-border);
            margin-top: 2.4rem;
            padding: 1.2rem 0 1.4rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
            font-size: 12.5px;
            color: var(--fn-text-weak);
        }

        .footer-bottom .brand {
            color: var(--fn-text-muted);
            font-weight: 600;
        }

        /* 响应式 */
        @media (max-width: 1199.98px) {
            .fn-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

        @media (max-width: 991.98px) {
            .fn-nav-links {
                display: none;
            }

            .fn-nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .fn-cat-head h1 {
                font-size: 28px;
            }

            .fn-filter-panel {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.8rem;
            }

            .fn-filter-right {
                width: 100%;
                justify-content: space-between;
            }

            .fn-filter-search input {
                width: 160px;
            }
        }

        @media (max-width: 767.98px) {
            .fn-card-grid {
                grid-template-columns: 1fr;
            }

            .fn-trending-grid {
                grid-template-columns: 1fr;
            }

            .fn-cta-box {
                padding: 1.6rem 1.2rem;
            }

            .fn-cta-box h2 {
                font-size: 20px;
            }

            .fn-footer .footer-title {
                margin-top: 0.8rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 575.98px) {
            .fn-nav-inner {
                min-height: 56px;
                gap: 0.5rem;
            }

            .fn-nav-logo {
                font-size: 16px;
            }

            .fn-nav-right a {
                padding: 4px 10px;
                font-size: 12px;
            }

            .fn-cat-head h1 {
                font-size: 23px;
            }

            .fn-cat-head .cat-desc {
                font-size: 14px;
            }

            .section-title {
                font-size: 21px;
            }

            .fn-filter-group {
                gap: 4px;
            }

            .fn-filter-btn {
                padding: 4px 11px;
                font-size: 12px;
            }

            .fn-filter-search input {
                width: 130px;
                padding-left: 30px;
            }

            .fn-article-card .fn-article-title {
                font-size: 15.5px;
            }

            .fn-article-card .fn-article-summary {
                font-size: 13px;
            }

            .fn-cta-actions {
                flex-direction: column;
                width: 100%;
            }

            .fn-cta-actions .btn-fn,
            .fn-cta-actions .btn-fn-outline {
                width: 100%;
            }

            .fn-data-note-box {
                padding: 1rem;
                flex-direction: column;
                gap: 0.6rem;
            }
        }

/* roulang page: category6 */
:root {
            --fn-bg: #0B0F14;
            --fn-bg-elev: #111820;
            --fn-card: #121A23;
            --fn-card-hover: #17212c;
            --fn-primary: #2CE5C4;
            --fn-primary-soft: rgba(44, 229, 196, 0.12);
            --fn-violet: #7C5CFF;
            --fn-amber: #FFB547;
            --fn-danger: #FF4D6A;
            --fn-nav-bg: #1F2A36;
            --fn-text: #E6EEF5;
            --fn-text-muted: #8B9DAD;
            --fn-text-weak: #5F7180;
            --fn-border: rgba(255, 255, 255, 0.08);
            --fn-border-light: rgba(255, 255, 255, 0.14);
            --fn-radius: 14px;
            --fn-radius-sm: 10px;
            --fn-radius-btn: 9px;
            --fn-shadow: 0 4px 22px rgba(0, 0, 0, 0.35);
            --fn-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(44, 229, 196, 0.14);
            --fn-transition: 0.22s ease;
            --fn-font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --fn-max-width: 1220px;
            --fn-section-pad: 64px 0;
            --fn-gutter: 1.25rem;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--fn-font-sans);
            background: var(--fn-bg);
            color: var(--fn-text);
            line-height: 1.75;
            font-size: 15px;
            min-height: 100vh;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: var(--fn-primary);
            transition: color var(--fn-transition);
        }
        a:hover {
            color: #4eeed0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--fn-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: var(--fn-max-width);
            padding-left: var(--fn-gutter);
            padding-right: var(--fn-gutter);
            margin: 0 auto;
        }
        section {
            padding: var(--fn-section-pad);
            position: relative;
        }
        .section-alt {
            background: var(--fn-bg-elev);
        }
        .section-title {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 0.7rem;
            line-height: 1.35;
        }
        .section-sub {
            color: var(--fn-text-muted);
            font-size: 15px;
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 2rem;
        }
        .section-head {
            margin-bottom: 2.2rem;
        }
        .text-primary-fn {
            color: var(--fn-primary) !important;
        }
        .text-amber {
            color: var(--fn-amber) !important;
        }
        .text-danger-fn {
            color: var(--fn-danger) !important;
        }
        .badge-fn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.2);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-amber {
            background: rgba(255, 181, 71, 0.12);
            color: var(--fn-amber);
            border: 1px solid rgba(255, 181, 71, 0.22);
        }
        .badge-violet {
            background: rgba(124, 92, 255, 0.12);
            color: #a992ff;
            border: 1px solid rgba(124, 92, 255, 0.22);
        }
        .btn-fn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--fn-primary);
            color: #08110f;
            font-weight: 700;
            font-size: 15px;
            padding: 11px 26px;
            border-radius: var(--fn-radius-btn);
            border: none;
            transition: all var(--fn-transition);
            box-shadow: 0 4px 16px rgba(44, 229, 196, 0.22);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-fn:hover {
            background: #4eeed0;
            color: #08110f;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(44, 229, 196, 0.32);
        }
        .btn-fn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--fn-text);
            border: 1px solid var(--fn-border-light);
            padding: 10px 24px;
            border-radius: var(--fn-radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--fn-transition);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-fn-outline:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(44, 229, 196, 0.12);
        }
        .btn-fn-sm {
            padding: 7px 18px;
            font-size: 13px;
        }
        .btn-fn-violet {
            background: var(--fn-violet);
            color: #fff;
            box-shadow: 0 4px 16px rgba(124, 92, 255, 0.2);
        }
        .btn-fn-violet:hover {
            background: #9478ff;
            color: #fff;
            transform: translateY(-2px);
        }
        .list-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            overflow: hidden;
            transition: all var(--fn-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .list-card:hover {
            background: var(--fn-card-hover);
            border-color: rgba(44, 229, 196, 0.18);
            box-shadow: var(--fn-shadow-hover);
            transform: translateY(-3px);
        }
        .list-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: #0d141c;
        }
        .list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .list-card:hover .list-card-img img {
            transform: scale(1.05);
        }
        .list-card-body {
            padding: 1.25rem 1.25rem 1.4rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .list-card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 0.55rem;
            color: var(--fn-text);
        }
        .list-card-desc {
            font-size: 14px;
            color: var(--fn-text-muted);
            line-height: 1.8;
            margin-bottom: 0.9rem;
            flex: 1;
        }
        .list-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12.5px;
            color: var(--fn-text-weak);
            border-top: 1px solid var(--fn-border);
            padding-top: 0.85rem;
        }
        .list-card-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .list-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .list-card-tag {
            background: rgba(44, 229, 196, 0.08);
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.16);
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
        }
        .list-card-tag.violet {
            background: rgba(124, 92, 255, 0.08);
            color: #a992ff;
            border-color: rgba(124, 92, 255, 0.16);
        }
        .list-card-tag.amber {
            background: rgba(255, 181, 71, 0.08);
            color: var(--fn-amber);
            border-color: rgba(255, 181, 71, 0.16);
        }
        .pagination-fn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .pagination-fn a,
        .pagination-fn span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 10px;
            border-radius: 10px;
            border: 1px solid var(--fn-border);
            background: transparent;
            color: var(--fn-text-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--fn-transition);
        }
        .pagination-fn a:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
        }
        .pagination-fn .active-page {
            background: var(--fn-primary);
            color: #08110f;
            border-color: var(--fn-primary);
            font-weight: 700;
        }
        .filter-bar {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .filter-bar-left {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-bar-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-btn {
            background: transparent;
            border: 1px solid var(--fn-border);
            color: var(--fn-text-muted);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            transition: all var(--fn-transition);
            cursor: pointer;
        }
        .filter-btn:hover,
        .filter-btn.active-filter {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            background: var(--fn-primary-soft);
        }
        .filter-select {
            background: var(--fn-bg-elev);
            border: 1px solid var(--fn-border);
            color: var(--fn-text);
            padding: 7px 14px;
            border-radius: 8px;
            font-size: 13px;
            cursor: pointer;
        }
        .breadcrumb-fn {
            background: transparent;
            margin: 0;
            padding: 0;
            font-size: 13.5px;
            color: var(--fn-text-weak);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-fn a {
            color: var(--fn-text-muted);
            transition: color var(--fn-transition);
        }
        .breadcrumb-fn a:hover {
            color: var(--fn-primary);
        }
        .breadcrumb-fn .sep {
            color: var(--fn-text-weak);
            opacity: 0.6;
        }
        .breadcrumb-fn .current {
            color: var(--fn-primary);
            font-weight: 600;
        }
        .hot-topic-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1.2rem 1.3rem;
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            transition: all var(--fn-transition);
        }
        .hot-topic-card:hover {
            border-color: rgba(44, 229, 196, 0.2);
            box-shadow: var(--fn-shadow);
            background: var(--fn-card-hover);
        }
        .hot-topic-rank {
            font-size: 28px;
            font-weight: 900;
            color: var(--fn-primary);
            opacity: 0.5;
            line-height: 1;
            min-width: 40px;
        }
        .hot-topic-content {
            flex: 1;
        }
        .hot-topic-title {
            font-size: 15.5px;
            font-weight: 700;
            color: var(--fn-text);
            margin-bottom: 0.25rem;
        }
        .hot-topic-meta {
            font-size: 12.5px;
            color: var(--fn-text-weak);
        }
        .subscribe-cta-box {
            background: linear-gradient(135deg, #0f1a1e 0%, #14242a 100%);
            border: 1px solid rgba(44, 229, 196, 0.14);
            border-radius: var(--fn-radius);
            padding: 2.5rem 2rem;
            text-align: center;
        }
        .subscribe-cta-box h2 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }
        .subscribe-cta-box p {
            color: var(--fn-text-muted);
            max-width: 600px;
            margin: 0 auto 1.5rem;
            line-height: 1.9;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            background: var(--fn-bg);
            border: 1px solid var(--fn-border);
            color: var(--fn-text);
            padding: 10px 16px;
            border-radius: 10px;
            font-size: 14px;
            transition: border-color var(--fn-transition);
        }
        .subscribe-form input:focus {
            border-color: var(--fn-primary);
            outline: none;
        }
        .seo-data-block {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 1.5rem 1.75rem;
        }
        .seo-data-block h2 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .seo-data-block p {
            color: var(--fn-text-muted);
            font-size: 14px;
            line-height: 1.9;
            margin-bottom: 0.5rem;
        }
        .fn-nav {
            background: var(--fn-nav-bg);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .fn-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            min-height: 62px;
            flex-wrap: wrap;
        }
        .fn-nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 800;
            color: var(--fn-text);
            letter-spacing: 0.01em;
        }
        .fn-nav-logo:hover {
            color: var(--fn-primary);
        }
        .logo-ico {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
        }
        .fn-nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0;
        }
        .fn-nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            font-size: 14px;
            font-weight: 500;
            color: var(--fn-text-muted);
            border-bottom: 2px solid transparent;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }
        .fn-nav-links li a:hover,
        .fn-nav-links li a.active {
            color: var(--fn-primary);
            border-bottom-color: var(--fn-primary);
        }
        .fn-nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .fn-nav-right a {
            font-size: 13px;
            color: var(--fn-text-muted);
            padding: 5px 12px;
            border: 1px solid var(--fn-border);
            border-radius: 8px;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }
        .fn-nav-right a:hover {
            color: var(--fn-primary);
            border-color: var(--fn-primary);
        }
        .fn-nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--fn-border);
            color: var(--fn-text);
            font-size: 20px;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            cursor: pointer;
            transition: all var(--fn-transition);
        }
        .fn-nav-toggle:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
        }
        .fn-mobile-menu {
            display: none;
            background: var(--fn-nav-bg);
            padding: 0.5rem 1rem 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .fn-mobile-menu a {
            display: block;
            padding: 0.6rem 0;
            font-size: 14px;
            color: var(--fn-text-muted);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .fn-mobile-menu a:hover {
            color: var(--fn-primary);
        }
        .fn-mobile-menu.open {
            display: block;
        }

        .fn-footer {
            background: #0a1016;
            border-top: 1px solid var(--fn-border);
            padding: 2.5rem 0 1.5rem;
            margin-top: 0;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--fn-text);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.45rem;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--fn-text-muted);
            transition: color var(--fn-transition);
        }
        .footer-links a:hover {
            color: var(--fn-primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid var(--fn-border);
            font-size: 13px;
            color: var(--fn-text-weak);
        }
        .footer-bottom .brand {
            color: var(--fn-primary);
            font-weight: 700;
        }
        .fs-small {
            font-size: 13px;
        }
        .fs-mid {
            font-size: 15px;
        }
        .text-weak {
            color: var(--fn-text-weak);
        }
        .text-mid-muted {
            color: var(--fn-text-muted);
        }
        .mb-03 {
            margin-bottom: 0.3rem;
        }
        .mb-05 {
            margin-bottom: 0.5rem;
        }
        .mb-15 {
            margin-bottom: 1.5rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .gap-12 {
            gap: 12px;
        }

        /* Category page specific */
        .page-header-category {
            padding: 2rem 0 1rem;
        }
        .category-h1 {
            font-size: 32px;
            font-weight: 900;
            line-height: 1.35;
            margin-bottom: 0.8rem;
            letter-spacing: 0.01em;
        }
        .category-desc {
            font-size: 15.5px;
            color: var(--fn-text-muted);
            max-width: 800px;
            line-height: 1.9;
        }
        .list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }
        .hot-topics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        @media (max-width: 992px) {
            .list-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-topics-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .fn-nav-links {
                display: none;
            }
            .fn-nav-right {
                display: none;
            }
            .fn-nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .list-grid {
                grid-template-columns: 1fr;
            }
            .category-h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 22px;
            }
            :root {
                --fn-section-pad: 42px 0;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }
        @media (max-width: 520px) {
            .category-h1 {
                font-size: 21px;
            }
            .list-card-title {
                font-size: 15.5px;
            }
            .subscribe-cta-box {
                padding: 1.5rem 1.2rem;
            }
        }

/* roulang page: category5 */
:root {
            --fn-bg: #0B0F14;
            --fn-bg-elev: #111820;
            --fn-card: #121A23;
            --fn-card-hover: #17212c;
            --fn-primary: #2CE5C4;
            --fn-primary-soft: rgba(44, 229, 196, 0.12);
            --fn-violet: #7C5CFF;
            --fn-amber: #FFB547;
            --fn-danger: #FF4D6A;
            --fn-nav-bg: #1F2A36;
            --fn-text: #E6EEF5;
            --fn-text-muted: #8B9DAD;
            --fn-text-weak: #5F7180;
            --fn-border: rgba(255, 255, 255, 0.08);
            --fn-border-light: rgba(255, 255, 255, 0.14);
            --fn-radius: 14px;
            --fn-radius-sm: 10px;
            --fn-radius-btn: 9px;
            --fn-shadow: 0 4px 22px rgba(0, 0, 0, 0.35);
            --fn-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(44, 229, 196, 0.14);
            --fn-transition: 0.22s ease;
            --fn-font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --fn-max-width: 1220px;
            --fn-section-pad: 56px 0;
            --fn-gutter: 1.25rem;
        }

        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--fn-font-sans);
            background: var(--fn-bg);
            color: var(--fn-text);
            line-height: 1.75;
            font-size: 15px;
            min-height: 100vh;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--fn-primary);
            transition: color var(--fn-transition);
        }
        a:hover {
            color: #4eeed0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--fn-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: var(--fn-max-width);
            padding-left: var(--fn-gutter);
            padding-right: var(--fn-gutter);
            margin: 0 auto;
        }
        section {
            padding: var(--fn-section-pad);
            position: relative;
        }
        .section-alt {
            background: var(--fn-bg-elev);
        }
        .section-title {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 0.7rem;
            line-height: 1.35;
        }
        .section-sub {
            color: var(--fn-text-muted);
            font-size: 15px;
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 2rem;
        }
        .section-head {
            margin-bottom: 2.2rem;
        }
        .text-primary-fn {
            color: var(--fn-primary) !important;
        }
        .text-amber {
            color: var(--fn-amber) !important;
        }
        .text-danger-fn {
            color: var(--fn-danger) !important;
        }
        .badge-fn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--fn-primary-soft);
            color: var(--fn-primary);
            border: 1px solid rgba(44, 229, 196, 0.2);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-amber {
            background: rgba(255, 181, 71, 0.12);
            color: var(--fn-amber);
            border: 1px solid rgba(255, 181, 71, 0.22);
        }
        .badge-violet {
            background: rgba(124, 92, 255, 0.12);
            color: #a992ff;
            border: 1px solid rgba(124, 92, 255, 0.22);
        }
        .badge-danger-fn {
            background: rgba(255, 77, 106, 0.12);
            color: var(--fn-danger);
            border: 1px solid rgba(255, 77, 106, 0.22);
        }
        .btn-fn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--fn-primary);
            color: #08110f;
            font-weight: 700;
            font-size: 15px;
            padding: 11px 26px;
            border-radius: var(--fn-radius-btn);
            border: none;
            transition: all var(--fn-transition);
            box-shadow: 0 4px 16px rgba(44, 229, 196, 0.22);
            text-decoration: none;
        }
        .btn-fn:hover {
            background: #4eeed0;
            color: #08110f;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(44, 229, 196, 0.32);
        }
        .btn-fn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--fn-text);
            border: 1px solid var(--fn-border-light);
            padding: 10px 24px;
            border-radius: var(--fn-radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--fn-transition);
            text-decoration: none;
        }
        .btn-fn-outline:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(44, 229, 196, 0.12);
        }
        .btn-fn-sm {
            padding: 7px 18px;
            font-size: 13px;
        }
        .btn-fn-violet {
            background: var(--fn-violet);
            color: #fff;
            box-shadow: 0 4px 16px rgba(124, 92, 255, 0.2);
        }
        .btn-fn-violet:hover {
            background: #9478ff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* Navigation */
        .fn-nav {
            background: var(--fn-nav-bg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.28);
        }
        .fn-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }
        .fn-nav-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            color: var(--fn-primary);
            font-size: 18px;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            text-decoration: none;
        }
        .fn-nav-logo:hover {
            color: #4eeed0;
        }
        .logo-ico {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--fn-primary-soft);
            border-radius: 8px;
            color: var(--fn-primary);
        }
        .fn-nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .fn-nav-links li a {
            display: block;
            padding: 6px 14px;
            color: var(--fn-text);
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }
        .fn-nav-links li a:hover {
            color: var(--fn-primary);
            background: var(--fn-primary-soft);
        }
        .fn-nav-links li a.active {
            color: var(--fn-primary);
            background: var(--fn-primary-soft);
        }
        .fn-nav-right {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .fn-nav-right a {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--fn-text-muted);
            border: 1px solid var(--fn-border-light);
            border-radius: 8px;
            transition: all var(--fn-transition);
            white-space: nowrap;
        }
        .fn-nav-right a:hover {
            color: var(--fn-primary);
            border-color: var(--fn-primary);
        }
        .fn-nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--fn-text);
            font-size: 24px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: all var(--fn-transition);
        }
        .fn-nav-toggle:hover {
            color: var(--fn-primary);
            background: var(--fn-primary-soft);
        }
        .fn-mobile-menu {
            display: none;
            background: var(--fn-nav-bg);
            border-top: 1px solid var(--fn-border);
            padding: 12px 0;
        }
        .fn-mobile-menu a {
            display: block;
            padding: 10px 20px;
            color: var(--fn-text);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--fn-transition);
        }
        .fn-mobile-menu a:hover {
            color: var(--fn-primary);
            background: var(--fn-primary-soft);
        }

        /* Breadcrumb */
        .fn-breadcrumb {
            background: transparent;
            padding: 20px 0 0;
            margin: 0;
            font-size: 14px;
        }
        .fn-breadcrumb .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .fn-breadcrumb .breadcrumb-item a {
            color: var(--fn-text-muted);
            text-decoration: none;
            transition: color var(--fn-transition);
        }
        .fn-breadcrumb .breadcrumb-item a:hover {
            color: var(--fn-primary);
        }
        .fn-breadcrumb .breadcrumb-item.active {
            color: var(--fn-primary);
        }
        .fn-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
            content: "›";
            color: var(--fn-text-weak);
            margin-right: 8px;
        }

        /* Page Header */
        .page-header {
            padding: 32px 0 20px;
        }
        .page-header h1 {
            font-size: 32px;
            font-weight: 900;
            letter-spacing: 0.01em;
            margin-bottom: 12px;
            color: var(--fn-text);
            line-height: 1.35;
        }
        .page-header .page-desc {
            color: var(--fn-text-muted);
            font-size: 15px;
            max-width: 820px;
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .stat-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 10px;
        }
        .stat-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            color: var(--fn-text-muted);
            font-weight: 600;
        }
        .stat-pill strong {
            color: var(--fn-primary);
            font-weight: 800;
        }

        /* Filter Bar */
        .filter-bar {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 16px 18px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 28px;
            box-shadow: var(--fn-shadow);
        }
        .filter-bar .form-control,
        .filter-bar .form-select {
            background: var(--fn-bg-elev);
            border: 1px solid var(--fn-border-light);
            color: var(--fn-text);
            font-size: 14px;
            padding: 8px 14px;
            border-radius: var(--fn-radius-btn);
            transition: border-color var(--fn-transition);
        }
        .filter-bar .form-control:focus,
        .filter-bar .form-select:focus {
            border-color: var(--fn-primary);
            box-shadow: 0 0 0 3px rgba(44, 229, 196, 0.1);
        }
        .filter-bar .form-control::placeholder {
            color: var(--fn-text-weak);
        }
        .filter-bar .form-select option {
            background: var(--fn-bg-elev);
            color: var(--fn-text);
        }
        .filter-search {
            flex: 1;
            min-width: 180px;
        }

        /* Data Cards */
        .data-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            overflow: hidden;
            transition: all var(--fn-transition);
            display: flex;
            flex-direction: column;
            height: 100%;
            box-shadow: var(--fn-shadow);
        }
        .data-card:hover {
            border-color: rgba(44, 229, 196, 0.3);
            box-shadow: var(--fn-shadow-hover);
            transform: translateY(-3px);
        }
        .data-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            flex-shrink: 0;
        }
        .data-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .data-card:hover .data-card-img img {
            transform: scale(1.05);
        }
        .data-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 15, 20, 0.8) 100%);
            pointer-events: none;
        }
        .data-card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .data-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .data-card-title {
            font-size: 16px;
            font-weight: 800;
            color: var(--fn-text);
            margin-bottom: 8px;
            line-height: 1.45;
            letter-spacing: 0.01em;
        }
        .data-card-summary {
            font-size: 13.5px;
            color: var(--fn-text-muted);
            line-height: 1.75;
            margin-bottom: 12px;
            flex: 1;
        }
        .data-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12.5px;
            color: var(--fn-text-weak);
            border-top: 1px solid var(--fn-border);
            padding-top: 12px;
        }
        .data-card-meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* Pagination */
        .fn-pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 24px 0 8px;
            flex-wrap: wrap;
        }
        .fn-pagination .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 10px;
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: 8px;
            color: var(--fn-text-muted);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--fn-transition);
            user-select: none;
        }
        .fn-pagination .page-btn:hover {
            border-color: var(--fn-primary);
            color: var(--fn-primary);
        }
        .fn-pagination .page-btn.active {
            background: var(--fn-primary);
            border-color: var(--fn-primary);
            color: #08110f;
            font-weight: 800;
        }
        .fn-pagination .page-btn.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* Hot Topics */
        .hot-topic-card {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            overflow: hidden;
            transition: all var(--fn-transition);
            box-shadow: var(--fn-shadow);
        }
        .hot-topic-card:hover {
            border-color: rgba(124, 92, 255, 0.35);
            box-shadow: var(--fn-shadow-hover);
            transform: translateY(-3px);
        }
        .hot-topic-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .hot-topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .hot-topic-card:hover .hot-topic-img img {
            transform: scale(1.06);
        }
        .hot-topic-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 45%, rgba(11, 15, 20, 0.85) 100%);
            pointer-events: none;
        }
        .hot-topic-body {
            padding: 14px 16px 16px;
        }
        .hot-topic-title {
            font-size: 14.5px;
            font-weight: 700;
            color: var(--fn-text);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .hot-topic-meta {
            font-size: 12px;
            color: var(--fn-text-weak);
        }

        /* SEO Data Block */
        .seo-data-block {
            background: var(--fn-bg-elev);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius);
            padding: 28px 30px;
        }
        .seo-data-block h2 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--fn-text);
        }
        .seo-data-block p {
            color: var(--fn-text-muted);
            font-size: 14px;
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .seo-data-block p:last-child {
            margin-bottom: 0;
        }

        /* CTA Section */
        .cta-section {
            background: var(--fn-bg-elev);
            border-top: 1px solid var(--fn-border);
            border-bottom: 1px solid var(--fn-border);
        }
        .cta-box {
            background: var(--fn-card);
            border: 1px solid var(--fn-border-light);
            border-radius: var(--fn-radius);
            padding: 32px 36px;
            text-align: left;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(44, 229, 196, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: 22px;
            font-weight: 900;
            margin-bottom: 8px;
            color: var(--fn-text);
        }
        .cta-box p {
            color: var(--fn-text-muted);
            font-size: 14.5px;
            margin-bottom: 18px;
            max-width: 560px;
        }

        /* FAQ */
        .fn-accordion .accordion-item {
            background: var(--fn-card);
            border: 1px solid var(--fn-border);
            border-radius: var(--fn-radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
        }
        .fn-accordion .accordion-button {
            background: var(--fn-card);
            color: var(--fn-text);
            font-weight: 700;
            font-size: 15px;
            padding: 16px 20px;
            transition: all var(--fn-transition);
            border-radius: var(--fn-radius-sm);
            box-shadow: none;
        }
        .fn-accordion .accordion-button:not(.collapsed) {
            background: var(--fn-card-hover);
            color: var(--fn-primary);
            box-shadow: none;
        }
        .fn-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(44, 229, 196, 0.15);
            border-color: var(--fn-primary);
        }
        .fn-accordion .accordion-button::after {
            filter: invert(0.6);
        }
        .fn-accordion .accordion-body {
            background: var(--fn-card);
            color: var(--fn-text-muted);
            font-size: 14px;
            line-height: 1.85;
            padding: 16px 20px 18px;
        }

        /* Footer */
        .fn-footer {
            background: #0D141C;
            border-top: 1px solid var(--fn-border);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 800;
            color: var(--fn-text);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .fs-mid {
            font-size: 14px;
            line-height: 1.8;
        }
        .fs-small {
            font-size: 13px;
            line-height: 1.7;
        }
        .text-weak {
            color: var(--fn-text-weak) !important;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links li a {
            color: var(--fn-text-muted);
            font-size: 13.5px;
            transition: color var(--fn-transition);
        }
        .footer-links li a:hover {
            color: var(--fn-primary);
        }
        .subscribe-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 140px;
            background: var(--fn-bg-elev);
            border: 1px solid var(--fn-border-light);
            color: var(--fn-text);
            padding: 8px 14px;
            border-radius: var(--fn-radius-btn);
            font-size: 13px;
            transition: border-color var(--fn-transition);
        }
        .subscribe-form input:focus {
            border-color: var(--fn-primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(44, 229, 196, 0.1);
        }
        .footer-bottom {
            border-top: 1px solid var(--fn-border);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--fn-text-weak);
        }
        .footer-bottom .brand {
            color: var(--fn-primary);
            font-weight: 700;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .fn-nav-links {
                display: none;
            }
            .fn-nav-right {
                display: none;
            }
            .fn-nav-toggle {
                display: block;
            }
            .fn-mobile-menu.show {
                display: block;
            }
            :root {
                --fn-section-pad: 42px 0;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .cta-box {
                padding: 24px 22px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --fn-section-pad: 32px 0;
                --fn-gutter: 0.8rem;
            }
            .page-header h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 20px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-search {
                min-width: 100%;
            }
            .cta-box h2 {
                font-size: 19px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .data-card-img {
                aspect-ratio: 16 / 10;
            }
        }

        @media (max-width: 520px) {
            :root {
                --fn-gutter: 0.7rem;
            }
            .fn-nav-inner {
                height: 56px;
            }
            .fn-nav-logo {
                font-size: 16px;
            }
            .page-header h1 {
                font-size: 20px;
                line-height: 1.4;
            }
            .page-header .page-desc {
                font-size: 14px;
            }
            .stat-inline {
                gap: 6px;
            }
            .stat-pill {
                font-size: 12px;
                padding: 4px 12px;
            }
            .section-title {
                font-size: 18px;
            }
            .data-card-title {
                font-size: 14.5px;
            }
            .data-card-summary {
                font-size: 13px;
            }
            .seo-data-block {
                padding: 20px 18px;
            }
            .seo-data-block h2 {
                font-size: 17px;
            }
            .cta-box {
                padding: 20px 16px;
                border-radius: var(--fn-radius-sm);
            }
            .cta-box h2 {
                font-size: 17px;
            }
            .cta-box p {
                font-size: 13.5px;
            }
            .fn-accordion .accordion-button {
                font-size: 14px;
                padding: 14px 16px;
            }
            .fn-pagination .page-btn {
                min-width: 32px;
                height: 34px;
                font-size: 13px;
                padding: 0 8px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}