/* roulang page: index */
:root {
            --clr-primary: #1B5BFF;
            --clr-primary-dark: #0F3D9E;
            --clr-primary-deep: #0C2C70;
            --clr-primary-light: #E9F4FF;
            --clr-soft-bg: #F7FAFF;
            --clr-accent: #30D5FF;
            --clr-rose: #F43F5E;

            --bg-body: #FBFDFF;
            --text-main: #1A2A3A;
            --text-sub: #617388;
            --text-light: #94A6BC;
            --border-line: #E1E8F0;
            --border-soft: #EBF0F5;

            --radius-card: 16px;
            --radius-sm: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;

            --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 12px rgba(16, 24, 40, .06);
            --shadow-md: 0 4px 16px rgba(16, 24, 40, .07), 0 1px 2px rgba(16, 24, 40, .04);
            --shadow-hover: 0 10px 28px rgba(16, 24, 40, .10), 0 2px 6px rgba(16, 24, 40, .05);

            --font-family: Inter, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-space: 6rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        button {
            background: none;
            border: none;
            font: inherit;
        }

        :focus-visible {
            outline: 2px solid var(--clr-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1180px;
            padding-left: 1.2rem;
            padding-right: 1.2rem;
        }

        @media (min-width: 1400px) {
            .container {
                max-width: 1220px;
            }
        }

        .section {
            padding: var(--section-space) 0;
        }

        .section-head {
            margin-bottom: 3rem;
        }

        .section-head h2 {
            font-size: clamp(1.55rem, 2.6vw, 2rem);
            font-weight: 700;
            letter-spacing: -.025em;
            line-height: 1.3;
            margin-bottom: .6rem;
        }

        .section-head p {
            color: var(--text-sub);
            font-size: 1rem;
            max-width: 680px;
            margin: 0;
        }

        .section-head.text-center p {
            margin-left: auto;
            margin-right: auto;
        }

        .eyebrow {
            display: inline-block;
            background: rgba(27, 91, 255, .08);
            color: var(--clr-primary-dark);
            font-size: .78rem;
            font-weight: 700;
            letter-spacing: .04em;
            padding: .3rem .9rem;
            border-radius: var(--radius-pill);
            margin-bottom: 1rem;
        }

        .bg-soft {
            background: linear-gradient(180deg, #F4F9FF 0%, #FBFDFF 100%);
        }

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

        h4,
        h5 {
            font-weight: 700;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
        }

        .btn-primary {
            --bs-btn-bg: var(--clr-primary);
            --bs-btn-border-color: var(--clr-primary);
            --bs-btn-hover-bg: var(--clr-primary-dark);
            --bs-btn-hover-border-color: var(--clr-primary-dark);
            --bs-btn-active-bg: var(--clr-primary-dark);
            --bs-btn-active-border-color: var(--clr-primary-dark);
            --bs-btn-disabled-bg: #A9C2FF;
            --bs-btn-disabled-border-color: #A9C2FF;
            box-shadow: none;
            padding: .65rem 1.4rem;
            transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
        }

        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(27, 91, 255, .16);
        }

        .btn-outline-primary {
            --bs-btn-color: var(--clr-primary);
            --bs-btn-border-color: var(--clr-primary);
            --bs-btn-hover-bg: rgba(27, 91, 255, .08);
            --bs-btn-hover-border-color: var(--clr-primary);
            --bs-btn-hover-color: var(--clr-primary);
            --bs-btn-active-bg: rgba(27, 91, 255, .14);
            --bs-btn-active-border-color: var(--clr-primary);
            --bs-btn-active-color: var(--clr-primary);
            box-shadow: none;
            padding: .65rem 1.4rem;
            transition: transform .2s ease, background .2s ease;
        }

        .btn-outline-primary:hover {
            transform: translateY(-1px);
        }

        /* ========= Header ========= */
        .site-header {
            position: relative;
            z-index: 100;
            background: #fff;
        }

        .brand-row {
            border-bottom: 1px solid var(--border-soft);
            background: #fff;
        }

        .brand-inner {
            display: flex;
            align-items: center;
            min-height: 70px;
            gap: .8rem;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            font-size: 1.3rem;
            font-weight: 800;
            letter-spacing: -.02em;
            color: var(--text-main);
            white-space: nowrap;
        }

        .brand-logo .logo-mark {
            width: 28px;
            height: 28px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--clr-primary) 20%, var(--clr-accent) 100%);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: .72rem;
            box-shadow: 0 4px 10px rgba(27, 91, 255, .22);
        }

        .brand-logo .logo-mark i {
            font-size: .8rem;
        }

        .brand-tag {
            background: var(--clr-primary-light);
            color: var(--clr-primary-dark);
            font-size: .74rem;
            font-weight: 600;
            padding: .2rem .7rem;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        .brand-right {
            display: flex;
            align-items: center;
            gap: .6rem;
            margin-left: auto;
        }

        .header-search {
            background: var(--clr-soft-bg);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-pill);
            display: flex;
            align-items: center;
            padding: .3rem .5rem .3rem 1rem;
            gap: .5rem;
            min-width: 260px;
            transition: border .2s, box-shadow .2s;
        }

        .header-search:focus-within {
            border-color: var(--clr-primary);
            box-shadow: 0 0 0 3px rgba(27, 91, 255, .1);
        }

        .header-search i {
            color: var(--text-sub);
            font-size: .9rem;
        }

        .header-search input {
            border: 0;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: .9rem;
        }

        .header-search input::placeholder {
            color: var(--text-light);
        }

        .channel-search-mobile {
            display: none;
        }

        .icon-btn {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            background: var(--clr-soft-bg);
            color: var(--text-main);
            font-size: 1.1rem;
            border: 1px solid var(--border-soft);
        }

        .icon-btn:hover {
            color: var(--clr-primary);
            border-color: var(--clr-primary);
        }

        .channel-row {
            position: sticky;
            top: 0;
            z-index: 98;
            background: rgba(247, 250, 255, .88);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-soft);
        }

        .channel-list {
            display: flex;
            align-items: center;
            gap: .2rem;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

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

        .channel-list li a {
            display: block;
            padding: .9rem .75rem;
            font-weight: 600;
            font-size: .95rem;
            color: var(--text-sub);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            transition: color .2s, border-color .2s;
        }

        .channel-list li a:hover {
            color: var(--clr-primary);
        }

        .channel-list li a.active {
            color: var(--clr-primary);
            border-bottom-color: var(--clr-primary);
        }

        .menu-toggle {
            display: none;
        }

        @media (max-width: 991px) {
            .menu-toggle {
                display: inline-flex;
                width: 38px;
                height: 38px;
                border: 1px solid var(--border-soft);
                border-radius: var(--radius-btn);
                background: var(--clr-soft-bg);
                align-items: center;
                justify-content: center;
                font-size: 1.2rem;
                color: var(--text-main);
            }

            .menu-toggle.active {
                background: var(--clr-primary);
                color: #fff;
            }

            .brand-inner {
                min-height: 62px;
            }

            .brand-tag {
                display: none;
            }

            .channel-row {
                display: none;
                border-top: 0;
            }

            .channel-row.open {
                display: block;
            }

            .channel-list {
                flex-wrap: nowrap;
                padding-bottom: .4rem;
            }

            .channel-search-mobile {
                display: block;
                padding: .8rem .5rem .2rem;
            }

            .channel-search-mobile .header-search {
                min-width: 0;
                width: 100%;
            }
        }

        /* ========= Hero ========= */
        .hero {
            position: relative;
            padding: calc(var(--section-space) * .86) 0 calc(var(--section-space) * .62);
            background:
                radial-gradient(circle at 84% 18%, rgba(48, 213, 255, .20) 0%, transparent 28%),
                linear-gradient(118deg, #FFFFFF 10%, rgba(231, 242, 255, .84) 52%, rgba(215, 235, 255, .55) 100%),
                url("/assets/images/backpic/back-2.jpg") center/cover no-repeat;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: .5rem;
            margin-bottom: 1.5rem;
        }

        .hero-badge {
            background: rgba(255, 255, 255, .8);
            border: 1px solid var(--border-soft);
            padding: .32rem .9rem;
            font-size: .8rem;
            font-weight: 600;
            color: var(--text-sub);
            border-radius: var(--radius-pill);
            box-shadow: 0 2px 4px rgba(16, 24, 40, .03);
        }

        .hero h1 {
            font-size: clamp(2rem, 4.2vw, 2.9rem);
            line-height: 1.22;
            font-weight: 800;
            letter-spacing: -.025em;
            color: var(--text-main);
            max-width: 640px;
            margin-bottom: 1.2rem;
        }

        .hero h1 .text-grad {
            color: var(--clr-primary);
            position: relative;
        }

        .hero-lead {
            font-size: 1.04rem;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 600px;
            margin-bottom: 1.6rem;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: .8rem;
            margin-bottom: 1.2rem;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            font-size: .84rem;
            color: var(--text-sub);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
        }

        .hero-meta i {
            color: var(--clr-primary);
        }

        .hero-data-zone {
            position: relative;
        }

        .data-window {
            position: relative;
            z-index: 2;
            background: rgba(255, 255, 255, .94);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .9);
            border-radius: 22px;
            padding: 1.5rem;
            box-shadow: var(--shadow-hover);
        }

        .data-window-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-soft);
            padding-bottom: .9rem;
            margin-bottom: 1rem;
        }

        .data-window-title {
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: .5rem;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #27C26A;
            position: relative;
        }

        .pulse-dot::after {
            content: "";
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            background: rgba(39, 194, 106, .25);
            animation: pulseRing 1.8s infinite;
        }

        @keyframes pulseRing {
            0% {
                transform: scale(.6);
                opacity: 1;
            }
            80%,
            100% {
                transform: scale(1.6);
                opacity: 0;
            }
        }

        .sync-time {
            font-size: .78rem;
            color: var(--text-sub);
        }

        .data-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: .8rem;
            margin-bottom: 1rem;
        }

        .data-cell {
            background: var(--clr-soft-bg);
            border-radius: var(--radius-sm);
            padding: .85rem .9rem;
            border: 1px solid var(--border-soft);
        }

        .data-cell .num {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--clr-primary-dark);
            line-height: 1.2;
            letter-spacing: -.02em;
            font-variant-numeric: tabular-nums;
        }

        .data-cell .lab {
            font-size: .78rem;
            color: var(--text-sub);
            margin-top: .2rem;
        }

        .data-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: .4rem;
            padding-top: .4rem;
        }

        .data-tag-cloud .chip {
            font-size: .75rem;
            background: var(--clr-primary-light);
            color: var(--clr-primary-dark);
            padding: .25rem .7rem;
            border-radius: var(--radius-pill);
            font-weight: 600;
        }

        .float-chip {
            position: absolute;
            z-index: 3;
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: 14px;
            box-shadow: var(--shadow-md);
            padding: .6rem .9rem;
            font-size: .78rem;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: .4rem;
            font-weight: 600;
            animation: floatY 3.5s ease-in-out infinite;
        }

        .float-chip i {
            color: var(--clr-primary);
        }

        .float-chip.top {
            top: -14px;
            right: 10px;
        }

        .float-chip.bottom {
            bottom: 58px;
            left: -16px;
            animation-delay: 1.2s;
        }

        @keyframes floatY {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }

        @media (max-width: 991px) {
            .hero {
                padding: 3rem 0;
            }

            .hero-data-zone {
                margin-top: 2rem;
            }
        }

        @media (max-width: 575px) {
            .hero h1 {
                font-size: 1.65rem;
            }

            .hero-lead {
                font-size: .95rem;
            }

            .float-chip.bottom {
                left: 4px;
            }
        }

        /* ========= Stats ========= */
        .stats-section {
            position: relative;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 1rem;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 1.2rem 1.1rem;
            box-shadow: var(--shadow-sm);
            transition: transform .25s, box-shadow .25s, border-color .25s;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(27, 91, 255, .25);
        }

        .stat-card .stat-num {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--clr-primary-dark);
            letter-spacing: -.02em;
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
        }

        .stat-card .stat-lab {
            font-size: .82rem;
            color: var(--text-sub);
            margin-top: .4rem;
            line-height: 1.4;
        }

        @media (max-width: 991px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 575px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: .7rem;
            }
        }

        /* ========= Service ========= */
        .service-card {
            height: 100%;
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 1.75rem 1.6rem;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            display: flex;
            flex-direction: column;
        }

        .service-card::before {
            content: "";
            position: absolute;
            right: -30px;
            top: -30px;
            width: 110px;
            height: 110px;
            background: radial-gradient(circle, rgba(48, 213, 255, .16) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(27, 91, 255, .22);
        }

        .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--clr-primary-light), #E1F5FF);
            color: var(--clr-primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
        }

        .service-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: .6rem;
        }

        .service-card p {
            font-size: .91rem;
            color: var(--text-sub);
            line-height: 1.75;
            flex-grow: 1;
            margin-bottom: 1.2rem;
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            color: var(--clr-primary);
            font-weight: 600;
            font-size: .9rem;
        }

        .service-link span.arrow {
            transition: transform .2s;
        }

        .service-card:hover .service-link span.arrow {
            transform: translateX(4px);
        }

        .service-link::after {
            content: "";
            position: absolute;
            inset: 0;
        }

        /* ========= Hot ========= */
        .hot-card {
            height: 100%;
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .hot-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(27, 91, 255, .24);
        }

        .cover-wrap {
            aspect-ratio: 16 / 10;
            background: linear-gradient(135deg, #E5EFFE, #F0F8FF);
            overflow: hidden;
            position: relative;
        }

        .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .55s ease;
        }

        .hot-card:hover .cover-wrap img {
            transform: scale(1.045);
        }

        .hot-badge {
            position: absolute;
            left: 1rem;
            top: 1rem;
            background: rgba(244, 63, 94, .12);
            backdrop-filter: blur(6px);
            color: #E11D48;
            font-size: .72rem;
            font-weight: 700;
            padding: .22rem .7rem;
            border-radius: var(--radius-pill);
        }

        .hot-index {
            position: absolute;
            right: .9rem;
            bottom: -.6rem;
            font-size: 3.6rem;
            font-weight: 800;
            color: rgba(27, 91, 255, .10);
            line-height: 1;
            letter-spacing: -.05em;
            z-index: 1;
        }

        .hot-body {
            padding: 1rem 1.2rem 1.2rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tagline {
            display: inline-flex;
            align-items: center;
            gap: .3rem;
            background: rgba(27, 91, 255, .08);
            color: var(--clr-primary-dark);
            border-radius: var(--radius-pill);
            padding: .15rem .6rem;
            font-size: .74rem;
            font-weight: 600;
            width: fit-content;
            margin-bottom: .5rem;
        }

        .hot-title {
            font-size: 1rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: .4rem;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hot-desc {
            font-size: .86rem;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 1rem;
            flex: 1;
        }

        .hot-meta {
            font-size: .78rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-soft);
            padding-top: .75rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .hot-meta i {
            color: var(--clr-primary);
            font-style: normal;
        }

        .hot-empty {
            display: none;
            text-align: center;
            padding: 2.4rem 1rem;
            background: #fff;
            border-radius: var(--radius-card);
            color: var(--text-sub);
            font-size: .95rem;
            box-shadow: var(--shadow-sm);
            border: 1px dashed var(--border-line);
        }

        .hot-empty.show {
            display: block;
        }

        /* ========= Compare ========= */
        .compare-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
        }

        .compare-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: 20px;
            padding: 1.8rem 1.7rem;
            box-shadow: var(--shadow-sm);
            transition: transform .3s, box-shadow .3s;
        }

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

        .compare-card .compare-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: .6rem;
        }

        .compare-card .compare-title i {
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: .95rem;
        }

        .compare-card.con .compare-title i {
            background: rgba(244, 63, 94, .1);
            color: #E11D48;
        }

        .compare-card.pro .compare-title i {
            background: var(--clr-primary-light);
            color: var(--clr-primary);
        }

        .compare-item {
            display: flex;
            gap: .65rem;
            align-items: flex-start;
            font-size: .91rem;
            color: var(--text-sub);
            padding: .42rem 0;
            line-height: 1.65;
        }

        .compare-item i {
            font-style: normal;
            font-size: 1.05rem;
            line-height: 1.5;
        }

        .compare-card.con .compare-item i {
            color: #E11D48;
        }

        .compare-card.pro .compare-item i {
            color: var(--clr-primary);
        }

        .compare-card.pro {
            border-color: rgba(27, 91, 255, .22);
            background: linear-gradient(180deg, #FFFFFF 50%, #F5F9FF 100%);
        }

        @media (max-width: 767px) {
            .compare-wrap {
                grid-template-columns: 1fr;
            }
        }

        /* ========= Guide ========= */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.4rem;
        }

        .guide-step {
            position: relative;
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 1.6rem 1.3rem 1.4rem;
            box-shadow: var(--shadow-sm);
            transition: transform .25s, box-shadow .25s;
        }

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

        .guide-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--clr-primary);
            opacity: .2;
            line-height: 1;
            letter-spacing: -.04em;
            margin-bottom: .6rem;
            font-variant-numeric: tabular-nums;
        }

        .guide-step h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: .45rem;
        }

        .guide-step p {
            font-size: .86rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

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

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

        /* ========= FAQ ========= */
        .faq-layout {
            display: grid;
            grid-template-columns: .9fr 1.1fr;
            gap: 2.6rem;
            align-items: start;
        }

        .faq-intro {
            position: sticky;
            top: 90px;
        }

        .faq-intro h2 {
            font-size: clamp(1.5rem, 2.4vw, 1.95rem);
            margin-bottom: .9rem;
        }

        .faq-intro p {
            color: var(--text-sub);
            font-size: .96rem;
            line-height: 1.8;
            margin-bottom: 1.2rem;
        }

        .faq-help {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 1.2rem 1.25rem;
            box-shadow: var(--shadow-sm);
            font-size: .88rem;
            color: var(--text-sub);
        }

        .faq-help strong {
            color: var(--text-main);
            display: block;
            margin-bottom: .2rem;
        }

        .accordion-item {
            background: #fff;
            border: 1px solid var(--border-soft) !important;
            border-radius: var(--radius-card) !important;
            margin-bottom: .9rem;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .accordion-button {
            box-shadow: none !important;
            background: #fff !important;
            border-radius: var(--radius-card) !important;
            padding: 1.15rem 1.35rem;
            color: var(--text-main);
            font-weight: 600;
            font-size: .96rem;
            transition: background .2s, color .2s;
        }

        .accordion-button:not(.collapsed) {
            color: var(--clr-primary) !important;
            background: #F4F9FF !important;
        }

        .accordion-button::after {
            background-image: none !important;
            width: 22px;
            height: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-family: "bootstrap-icons";
            content: "\F64D";
            font-size: .85rem;
            color: var(--clr-primary-dark);
            transition: transform .35s ease;
            background-color: var(--clr-primary-light);
            border-radius: 50%;
            line-height: 1;
            flex-shrink: 0;
        }

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

        .accordion-body {
            padding: 0 1.35rem 1.2rem;
            color: var(--text-sub);
            font-size: .9rem;
            line-height: 1.8;
            background: #fff;
        }

        @media (max-width: 991px) {
            .faq-layout {
                grid-template-columns: 1fr;
            }

            .faq-intro {
                position: static;
            }
        }

        /* ========= CTA ========= */
        .cta-card {
            background: #fff;
            border: 1px solid rgba(27, 91, 255, .25);
            border-radius: 24px;
            box-shadow: var(--shadow-hover);
            padding: 2.8rem 2.4rem;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            right: -90px;
            top: -100px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(48, 213, 255, .16) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-card::after {
            content: "";
            position: absolute;
            left: -80px;
            bottom: -120px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(27, 91, 255, .08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-left h2 {
            font-size: clamp(1.45rem, 2.4vw, 1.8rem);
            letter-spacing: -.02em;
            margin-bottom: .7rem;
        }

        .cta-left p {
            color: var(--text-sub);
            font-size: .95rem;
            line-height: 1.75;
            max-width: 410px;
            margin: 0;
        }

        .cta-form-wrap {
            background: var(--clr-soft-bg);
            border-radius: 18px;
            padding: 1.4rem 1.2rem;
            z-index: 2;
            position: relative;
            border: 1px solid var(--border-soft);
        }

        .input-group-icon {
            position: relative;
            margin-bottom: .9rem;
        }

        .input-group-icon .bi {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
        }

        .input-group-icon .form-control {
            padding-left: 2.6rem;
        }

        .form-control {
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-line);
            background: #fff;
            padding: .65rem 1rem;
            color: var(--text-main);
            transition: border .2s, box-shadow .2s;
            font-size: .92rem;
        }

        .form-control:focus {
            border-color: var(--clr-primary);
            box-shadow: 0 0 0 3px rgba(27, 91, 255, .1);
            background: #fff;
            color: var(--text-main);
        }

        .form-control::placeholder {
            color: var(--text-light);
        }

        .pref-chips {
            display: flex;
            flex-wrap: wrap;
            gap: .45rem;
            margin-bottom: 1rem;
        }

        .pref-chips input {
            display: none;
        }

        .pref-chips label {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-pill);
            padding: .35rem .95rem;
            font-size: .82rem;
            color: var(--text-sub);
            font-weight: 500;
            cursor: pointer;
            transition: background .2s, border-color .2s, color .2s;
            user-select: none;
        }

        .pref-chips label:hover {
            border-color: var(--clr-primary);
            color: var(--clr-primary);
        }

        .pref-chips input:checked+label {
            background: var(--clr-primary-light);
            border-color: var(--clr-primary);
            color: var(--clr-primary-dark);
            font-weight: 600;
        }

        .form-note {
            font-size: .73rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-top: .75rem;
        }

        .success-box {
            text-align: center;
            padding: 2.2rem 1rem;
            background: var(--clr-soft-bg);
            border: 1px solid var(--border-soft);
            border-radius: 18px;
            z-index: 2;
            position: relative;
        }

        .success-icon {
            width: 54px;
            height: 54px;
            background: #E6F9ED;
            color: #1B9E54;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: .8rem;
        }

        .success-box h5 {
            font-weight: 700;
            margin-bottom: .3rem;
        }

        .success-box p {
            color: var(--text-sub);
            font-size: .9rem;
            margin: 0;
        }

        @media (max-width: 575px) {
            .cta-card {
                padding: 1.7rem 1.2rem;
            }
        }

        /* ========= Footer ========= */
        .site-footer {
            background: #F5F9FF;
            border-top: 1px solid var(--border-soft);
            padding-top: 3.2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 2rem;
            padding-bottom: 2.6rem;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: .8rem;
        }

        .footer-desc {
            font-size: .88rem;
            color: var(--text-sub);
            line-height: 1.75;
            max-width: 360px;
            margin-bottom: 1rem;
        }

        .footer-col h4 {
            font-size: .98rem;
            font-weight: 700;
            margin-bottom: .9rem;
            color: var(--text-main);
        }

        .footer-col ul li {
            margin-bottom: .45rem;
        }

        .footer-col ul li a {
            font-size: .88rem;
            color: var(--text-sub);
            transition: color .2s, padding-left .2s;
        }

        .footer-col ul li a:hover {
            color: var(--clr-primary);
            padding-left: 3px;
        }

        .footer-note {
            font-size: .84rem;
            color: var(--text-sub);
            line-height: 1.8;
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            padding: .85rem .9rem;
            box-shadow: var(--shadow-sm);
        }

        .footer-legal {
            border-top: 1px solid var(--border-soft);
            padding: 1.2rem 0 1.5rem;
            font-size: .78rem;
            color: var(--text-light);
        }

        .footer-legal .container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: .4rem .8rem;
        }

        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.6rem;
            }
        }

        @media (max-width: 575px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.4rem;
            }
        }

        @media (max-width: 991px) {
            :root {
                --section-space: 4.5rem;
            }
        }

        @media (max-width: 575px) {
            :root {
                --section-space: 3rem;
            }
        }

        #hot,
        #guide,
        #copyright {
            scroll-margin-top: 76px;
        }

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

/* roulang page: category1 */
:root {
            --clr-primary: #1B5BFF;
            --clr-primary-dark: #0F3D9E;
            --clr-primary-deep: #0C2C70;
            --clr-primary-light: #E9F4FF;
            --clr-soft-bg: #F7FAFF;
            --clr-accent: #30D5FF;
            --clr-rose: #F43F5E;
            --bg-body: #FBFDFF;
            --text-main: #1A2A3A;
            --text-sub: #617388;
            --text-light: #94A6BC;
            --border-line: #E1E8F0;
            --border-soft: #EBF0F5;
            --radius-card: 16px;
            --radius-sm: 12px;
            --radius-btn: 10px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 12px rgba(16, 24, 40, .06);
            --shadow-md: 0 4px 16px rgba(16, 24, 40, .07), 0 1px 2px rgba(16, 24, 40, .04);
            --shadow-hover: 0 10px 28px rgba(16, 24, 40, .10), 0 2px 6px rgba(16, 24, 40, .05);
            --font-family: Inter, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --section-space: 6rem;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }
        button {
            background: none;
            border: none;
            font: inherit;
        }
        ul,
        ol {
            padding-left: 0;
            list-style: none;
            margin-bottom: 0;
        }
        .container {
            max-width: 1220px;
            padding-left: 1.2rem;
            padding-right: 1.2rem;
        }
        ::selection {
            background: rgba(27, 91, 255, .15);
            color: var(--clr-primary-deep);
        }
        :focus-visible {
            outline: 2px solid var(--clr-primary);
            outline-offset: 3px;
        }
        .section {
            padding: var(--section-space) 0;
        }
        .section-head {
            margin-bottom: 3rem;
        }
        .section-head h2 {
            font-size: clamp(1.55rem, 2.6vw, 2rem);
            font-weight: 700;
            letter-spacing: -.025em;
            line-height: 1.3;
            margin-bottom: .6rem;
        }
        .section-head p {
            color: var(--text-sub);
            font-size: 1rem;
            max-width: 680px;
            margin: 0;
        }
        .eyebrow {
            display: inline-block;
            background: rgba(27, 91, 255, .08);
            color: var(--clr-primary-dark);
            font-size: .78rem;
            font-weight: 700;
            letter-spacing: .04em;
            padding: .3rem .9rem;
            border-radius: var(--radius-pill);
            margin-bottom: 1rem;
        }
        .text-sub {
            color: var(--text-sub);
        }
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
        }
        .btn-primary {
            --bs-btn-bg: var(--clr-primary);
            --bs-btn-border-color: var(--clr-primary);
            --bs-btn-hover-bg: var(--clr-primary-dark);
            --bs-btn-hover-border-color: var(--clr-primary-dark);
            --bs-btn-active-bg: var(--clr-primary-dark);
            --bs-btn-active-border-color: var(--clr-primary-dark);
            --bs-btn-disabled-bg: #A9C2FF;
            --bs-btn-disabled-border-color: #A9C2FF;
            box-shadow: none;
            padding: .65rem 1.4rem;
            transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
        }
        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(27, 91, 255, .16);
        }
        .btn-outline-primary {
            --bs-btn-color: var(--clr-primary);
            --bs-btn-border-color: var(--clr-primary);
            --bs-btn-hover-bg: rgba(27, 91, 255, .08);
            --bs-btn-hover-border-color: var(--clr-primary);
            --bs-btn-hover-color: var(--clr-primary);
            --bs-btn-active-bg: rgba(27, 91, 255, .14);
            --bs-btn-active-border-color: var(--clr-primary);
            --bs-btn-active-color: var(--clr-primary);
            box-shadow: none;
            padding: .65rem 1.4rem;
            transition: transform .2s ease, background .2s ease;
        }
        .btn-outline-primary:hover {
            transform: translateY(-1px);
        }

        /* ========== Header ========== */
        .site-header {
            position: relative;
            z-index: 100;
            background: #fff;
        }
        .brand-row {
            border-bottom: 1px solid var(--border-soft);
            background: #fff;
        }
        .brand-inner {
            display: flex;
            align-items: center;
            min-height: 70px;
            gap: .8rem;
            flex-wrap: wrap;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            font-size: 1.3rem;
            font-weight: 800;
            letter-spacing: -.02em;
            color: var(--text-main);
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            width: 28px;
            height: 28px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--clr-primary) 20%, var(--clr-accent) 100%);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: .72rem;
            box-shadow: 0 4px 10px rgba(27, 91, 255, .22);
            flex-shrink: 0;
        }
        .brand-logo .logo-mark i {
            font-size: .8rem;
        }
        .brand-tag {
            background: var(--clr-primary-light);
            color: var(--clr-primary-dark);
            font-size: .74rem;
            font-weight: 700;
            padding: .2rem .7rem;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        .brand-right {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: .55rem;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--clr-soft-bg);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-pill);
            padding: .32rem .5rem .32rem .9rem;
            width: 230px;
            color: var(--text-light);
            transition: border-color .2s, box-shadow .2s, background .2s;
        }
        .header-search:focus-within {
            background: #fff;
            border-color: var(--clr-primary);
            box-shadow: 0 0 0 4px rgba(27, 91, 255, .10);
        }
        .header-search input {
            border: 0;
            outline: 0;
            background: transparent;
            font-size: .85rem;
            width: 100%;
            color: var(--text-main);
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search i {
            font-size: .85rem;
            margin-right: .35rem;
        }
        .icon-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--clr-soft-bg);
            border: 1px solid var(--border-soft);
            color: var(--clr-primary-dark);
            transition: all .2s ease;
        }
        .icon-btn:hover {
            background: var(--clr-primary-light);
            border-color: rgba(27, 91, 255, .30);
            transform: translateY(-1px);
        }
        .menu-toggle {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-soft);
            background: #fff;
            font-size: 1.2rem;
            color: var(--text-main);
        }
        .menu-toggle:hover {
            background: var(--clr-primary-light);
            color: var(--clr-primary-dark);
            border-color: rgba(27, 91, 255, .20);
        }
        .channel-row {
            background: #fff;
            border-bottom: 1px solid var(--border-soft);
        }
        .channel-list {
            display: flex;
            align-items: center;
            gap: .3rem;
            min-height: 50px;
            overflow-x: auto;
            scrollbar-width: thin;
            -webkit-overflow-scrolling: touch;
        }
        .channel-list li {
            flex-shrink: 0;
        }
        .channel-list a {
            display: block;
            padding: .65rem .9rem;
            font-size: .92rem;
            font-weight: 600;
            color: var(--text-sub);
            border-radius: var(--radius-pill);
            transition: color .2s, background .2s;
            position: relative;
            white-space: nowrap;
        }
        .channel-list a:hover {
            color: var(--clr-primary);
            background: var(--clr-primary-light);
        }
        .channel-list a.active {
            background: var(--clr-primary-light);
            color: var(--clr-primary-dark);
            font-weight: 700;
        }
        .channel-list a.active::after {
            content: "";
            position: absolute;
            bottom: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 38px;
            height: 3px;
            background: var(--clr-primary);
            border-radius: 3px 3px 0 0;
        }
        .channel-search-mobile {
            display: none;
            padding: .7rem .2rem;
        }
        .channel-search-mobile .header-search {
            width: 100%;
        }

        /* ========== 分类页横幅 ========== */
        .category-banner {
            position: relative;
            background: linear-gradient(115deg, #EAF3FF 0%, #F6FAFF 54%, #EAF7FF 100%);
            padding: 4.5rem 0 4rem;
            overflow: hidden;
            border-bottom: 1px solid var(--border-soft);
        }
        .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-3.jpg");
            background-size: cover;
            background-position: center;
            opacity: .15;
            pointer-events: none;
        }
        .category-banner::after {
            content: "";
            position: absolute;
            width: 540px;
            height: 540px;
            right: -160px;
            top: -90px;
            background: radial-gradient(circle, rgba(48, 213, 255, .18) 0%, rgba(48, 213, 255, 0) 70%);
            pointer-events: none;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .banner-inner {
            max-width: 880px;
        }
        .banner-topline {
            display: flex;
            align-items: center;
            gap: .5rem;
            flex-wrap: wrap;
            margin-bottom: 1rem;
        }
        .banner-tag {
            background: #fff;
            border: 1px solid rgba(27, 91, 255, .18);
            color: var(--clr-primary-dark);
            font-size: .76rem;
            font-weight: 700;
            padding: .3rem .9rem;
            border-radius: var(--radius-pill);
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            box-shadow: 0 2px 6px rgba(27, 91, 255, .06);
        }
        .category-banner h1 {
            font-size: clamp(1.7rem, 3.6vw, 2.65rem);
            font-weight: 800;
            letter-spacing: -.03em;
            line-height: 1.28;
            color: var(--text-main);
            margin-bottom: 1rem;
        }
        .category-banner h1 .text-gradient {
            background: linear-gradient(96deg, var(--clr-primary) 10%, var(--clr-accent) 120%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }
        .category-banner .lead {
            color: var(--text-sub);
            font-size: clamp(1rem, 1.4vw, 1.125rem);
            max-width: 760px;
            margin-bottom: 1.8rem;
            line-height: 1.85;
        }
        .banner-stats {
            display: flex;
            flex-wrap: wrap;
            gap: .8rem;
        }
        .banner-stat {
            background: rgba(255, 255, 255, .9);
            border: 1px solid var(--border-soft);
            border-radius: 14px;
            padding: .7rem 1.2rem;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(6px);
            display: flex;
            align-items: center;
            gap: .5rem;
            min-width: 132px;
        }
        .banner-stat i {
            color: var(--clr-primary);
            font-size: 1.1rem;
        }
        .banner-stat b {
            font-size: 1.15rem;
            font-weight: 800;
            letter-spacing: -.02em;
            font-variant-numeric: tabular-nums;
        }
        .banner-stat span {
            display: block;
            font-size: .76rem;
            color: var(--text-sub);
            line-height: 1.2;
        }

        /* ========== 二级筛选标签 ========== */
        .filter-wrap {
            background: #fff;
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 80;
        }
        .filter-inner {
            display: flex;
            align-items: center;
            gap: .6rem;
            padding: .85rem 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .filter-label {
            color: var(--text-light);
            font-size: .78rem;
            font-weight: 700;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: .3rem;
        }
        .filter-chip {
            display: inline-block;
            padding: .42rem 1rem;
            border-radius: var(--radius-pill);
            background: var(--clr-soft-bg);
            color: var(--text-sub);
            font-size: .85rem;
            font-weight: 600;
            border: 1px solid transparent;
            white-space: nowrap;
            transition: all .2s ease;
        }
        .filter-chip:hover {
            color: var(--clr-primary);
            background: var(--clr-primary-light);
        }
        .filter-chip.active {
            background: var(--clr-primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 91, 255, .14);
        }
        @keyframes pulseDot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .55;
                transform: scale(.8);
            }
        }
        .live-dot {
            width: 7px;
            height: 7px;
            background: #22C55E;
            border-radius: 50%;
            display: inline-block;
            margin-right: 4px;
            animation: pulseDot 1.6s ease-in-out infinite;
        }

        /* ========== 内容卡片网格 ========== */
        .library-grid {
            background: var(--bg-body);
        }
        .media-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid transparent;
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
            height: 100%;
        }
        .media-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(27, 91, 255, .35);
        }
        .media-thumb {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: linear-gradient(135deg, var(--clr-primary-light), #DCEEFF);
        }
        .media-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .media-card:hover .media-thumb img {
            transform: scale(1.04);
        }
        .thumb-badge {
            position: absolute;
            left: 12px;
            top: 12px;
            background: rgba(255, 255, 255, .92);
            color: var(--text-main);
            font-size: .78rem;
            font-weight: 700;
            padding: .24rem .7rem;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(4px);
            box-shadow: 0 2px 6px rgba(0, 0, 0, .06);
            z-index: 2;
        }
        .thumb-badge.hot-tag {
            color: var(--clr-rose);
            display: flex;
            align-items: center;
            gap: .2rem;
        }
        .thumb-num {
            position: absolute;
            right: 12px;
            bottom: 10px;
            background: rgba(15, 61, 158, .55);
            color: #fff;
            font-size: .7rem;
            font-weight: 700;
            padding: .15rem .6rem;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(4px);
        }
        .media-body {
            padding: 1.1rem 1.2rem 1.15rem;
            display: flex;
            flex-direction: column;
            gap: .5rem;
        }
        .media-meta-top {
            display: flex;
            justify-content: space-between;
            gap: .4rem;
            align-items: center;
        }
        .cat-badge {
            background: rgba(27, 91, 255, .08);
            color: var(--clr-primary-dark);
            padding: .16rem .65rem;
            font-size: .72rem;
            font-weight: 700;
            border-radius: var(--radius-pill);
        }
        .cat-point {
            display: inline-flex;
            align-items: center;
            gap: .3rem;
            color: var(--text-light);
            font-size: .75rem;
            font-weight: 600;
        }
        .cat-point.rose i {
            color: var(--clr-rose);
        }
        .media-body h3 {
            font-size: 1.06rem;
            font-weight: 700;
            line-height: 1.5;
            margin: 0;
            letter-spacing: -.01em;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .media-desc {
            color: var(--text-sub);
            font-size: .88rem;
            line-height: 1.7;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .media-bottom {
            border-top: 1px solid var(--border-soft);
            padding-top: .8rem;
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: .5rem;
        }
        .media-bottom .meta-item {
            color: var(--text-light);
            font-size: .78rem;
            display: flex;
            align-items: center;
            gap: .3rem;
        }
        .entry-link {
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            color: var(--clr-primary);
            font-size: .85rem;
            font-weight: 700;
            transition: gap .2s ease;
        }
        .entry-link:hover {
            gap: .5rem;
            color: var(--clr-primary-dark);
        }

        /* ========== 分页区 ========== */
        .pager-panel {
            margin-top: 3rem;
        }
        .pager-info {
            color: var(--text-sub);
            font-size: .9rem;
            text-align: center;
            margin-bottom: 1rem;
        }
        .pager-links {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: .4rem;
            flex-wrap: wrap;
        }
        .page-link-btn {
            min-width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--border-soft);
            background: #fff;
            color: var(--text-main);
            font-weight: 600;
            font-size: .9rem;
            padding: 0 .5rem;
            transition: all .2s ease;
        }
        .page-link-btn:hover {
            border-color: var(--clr-primary);
            color: var(--clr-primary);
            background: var(--clr-soft-bg);
        }
        .page-link-btn.active {
            background: var(--clr-primary);
            border-color: var(--clr-primary);
            color: #fff;
            box-shadow: 0 4px 10px rgba(27, 91, 255, .14);
        }
        .page-link-btn.disabled {
            opacity: .45;
            pointer-events: none;
        }

        /* ========== 说明区 ========== */
        .index-note {
            background: var(--clr-soft-bg);
            border: 1px solid var(--border-soft);
            border-radius: calc(var(--radius-card) + 4px);
            padding: 1.8rem 2rem;
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }
        .index-note i {
            font-size: 1.5rem;
            color: var(--clr-primary);
            flex-shrink: 0;
        }
        .index-note h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: .4rem;
        }
        .index-note p {
            color: var(--text-sub);
            font-size: .9rem;
            margin: 0;
            max-width: 900px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }
        .faq-card {
            box-shadow: var(--shadow-sm);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            overflow: hidden;
        }
        .faq-card .accordion-item {
            border: 0;
            background: transparent;
        }
        .faq-card .accordion-item+.accordion-item {
            border-top: 1px solid var(--border-soft);
        }
        .faq-card .accordion-button {
            background: #fff;
            box-shadow: none;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-main);
            padding: 1.15rem 1.5rem;
            line-height: 1.5;
            --bs-accordion-btn-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231B5BFF'%3e%3cpath fill-rule='evenodd' d='M8 2a.5.5 0 0 1 .5.5v5h5a.5.5 0 0 1 0 1h-5v5a.5.5 0 0 1-1 0v-5h-5a.5.5 0 0 1 0-1h5v-5A.5.5 0 0 1 8 2'/%3e%3c/svg%3e");
            --bs-accordion-btn-active-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231B5BFF'%3e%3cpath fill-rule='evenodd' d='M2 8a.5.5 0 0 1 .5-.5h11a.5.5 0 0 1 0 1h-11A.5.5 0 0 1 2 8'/%3e%3c/svg%3e");
            transition: color .2s, background .2s;
            border-radius: 0;
        }
        .faq-card .accordion-button:not(.collapsed) {
            background: var(--clr-soft-bg);
            color: var(--clr-primary-dark);
            box-shadow: none;
        }
        .faq-card .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
            outline: 2px solid rgba(27, 91, 255, .18);
            outline-offset: -2px;
        }
        .faq-card .accordion-body {
            padding: .35rem 1.5rem 1.4rem;
            color: var(--text-sub);
            font-size: .92rem;
            line-height: 1.9;
            background: var(--clr-soft-bg);
            border-radius: 0 0 16px 16px;
        }

        /* ========== 订阅 CTA ========== */
        .subscribe-wrap {
            padding: var(--section-space) 0;
            background: linear-gradient(180deg, #FBFDFF 0%, #EDF6FF 100%);
        }
        .subscribe-card {
            background: #fff;
            border-radius: 22px;
            box-shadow: 0 20px 50px rgba(16, 24, 40, .08);
            border: 1px solid var(--clr-primary);
            padding: clamp(1.2rem, 4vw, 3rem);
            position: relative;
            overflow: hidden;
        }
        .subscribe-card::before {
            content: "";
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(48, 213, 255, .14), transparent 60%);
            top: -110px;
            right: -80px;
            pointer-events: none;
        }
        .subscribe-grid {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 2.5rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .subscribe-title h2 {
            font-size: clamp(1.45rem, 2.4vw, 1.9rem);
            font-weight: 700;
            letter-spacing: -.02em;
            margin-bottom: .6rem;
        }
        .subscribe-title p {
            color: var(--text-sub);
            max-width: 440px;
            margin: 0 0 1rem;
        }
        .subscribe-form .form-control,
        .subscribe-form .form-select {
            border-radius: 10px;
            border-color: var(--border-line);
            padding: .68rem 1rem;
            font-size: .93rem;
            background: #fff;
            box-shadow: none;
            transition: border-color .2s, box-shadow .2s;
        }
        .subscribe-form .form-control:focus,
        .subscribe-form .form-select:focus {
            border-color: var(--clr-primary);
            box-shadow: 0 0 0 4px rgba(27, 91, 255, .10);
        }
        .subscribe-form .btn {
            padding: .68rem 1.6rem;
            border-radius: 10px;
        }
        .legal-tip {
            font-size: .72rem;
            color: var(--text-light);
            margin-top: .7rem;
            line-height: 1.6;
        }
        .subscribe-success {
            display: none;
            margin-top: 1rem;
            background: #F0FDF4;
            border: 1px solid #BBF2CF;
            color: #15803D;
            padding: .75rem 1rem;
            border-radius: 12px;
            font-size: .9rem;
            font-weight: 600;
        }
        .subscribe-success.show {
            display: flex;
            gap: .5rem;
            align-items: center;
        }
        .subscribe-success i {
            font-size: 1.2rem;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #F7FAFF;
            border-top: 1px solid #E1E8F0;
            padding-top: 4rem;
            color: var(--text-sub);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            padding-bottom: 2rem;
        }
        .footer-logo .brand-logo {
            font-size: 1.2rem;
        }
        .footer-desc {
            color: var(--text-sub);
            font-size: .88rem;
            line-height: 1.9;
            max-width: 320px;
            margin-top: .9rem;
            margin-bottom: 0;
        }
        .site-footer h4 {
            font-size: .9rem;
            font-weight: 700;
            letter-spacing: .03em;
            color: var(--text-main);
            margin-bottom: 1rem;
        }
        .site-footer ul li {
            margin-bottom: .4rem;
        }
        .site-footer ul li a {
            color: var(--text-sub);
            font-size: .85rem;
            display: inline-flex;
            align-items: center;
            gap: .25rem;
        }
        .site-footer ul li a:hover {
            color: var(--clr-primary);
        }
        .footer-note {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: 12px;
            padding: .85rem .95rem;
            font-size: .78rem;
            line-height: 1.8;
            color: var(--text-light);
        }
        .footer-legal {
            border-top: 1px solid var(--border-soft);
            padding: 1.2rem 0;
            font-size: .8rem;
            color: var(--text-light);
        }
        .footer-legal .container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: .5rem;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 992px) {
            .section {
                --section-space: 4rem;
            }
            .subscribe-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .channel-row {
                border-bottom: 0;
            }
            .channel-row .container {
                width: 100%;
                padding: 0 1rem 0.8rem;
            }
            .channel-list {
                min-height: 0;
            }
            .channel-list a.active::after {
                display: none;
            }
            .channel-list a.active {
                box-shadow: inset 0 0 0 1px rgba(27, 91, 255, .12);
            }
            .menu-toggle {
                display: inline-flex;
            }
            .channel-search-mobile {
                display: block;
            }
            .channel-row:not(.open) .channel-list {
                display: none;
            }
            .channel-row.open .channel-list {
                display: flex;
                flex-wrap: nowrap;
            }
        }
        @media (min-width: 993px) {
            .menu-toggle {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section {
                --section-space: 3rem;
            }
            .brand-inner {
                min-height: 60px;
                gap: .5rem;
            }
            .brand-logo {
                font-size: 1.15rem;
            }
            .brand-tag {
                display: none;
            }
            .category-banner {
                padding: 3rem 0 2.5rem;
            }
            .banner-stat {
                flex: 1 1 42%;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
            .search-row form {
                width: 100%;
            }
            .index-note {
                flex-direction: column;
                padding: 1.2rem;
            }
            .subscribe-card {
                padding: 1.4rem 1.2rem;
            }
            .footer-legal .container {
                flex-direction: column;
                gap: .3rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: .9rem;
                padding-right: .9rem;
            }
            .category-banner h1 {
                font-size: 1.5rem;
            }
            .media-card {
                display: flex;
                flex-direction: row;
                align-items: stretch;
                border-radius: 16px;
            }
            .media-thumb {
                aspect-ratio: auto;
                width: 42%;
                min-height: 158px;
                flex-shrink: 0;
            }
            .media-body {
                padding: .8rem .95rem;
            }
            .media-bottom {
                flex-wrap: wrap;
            }
            .media-bottom .meta-item {
                font-size: .75rem;
            }
            .banner-down {
                display: flex;
                flex-direction: column;
                gap: .6rem;
            }
            .filter-inner {
                padding: .8rem 0;
            }
        }

/* 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}