/* roulang page: index */
:root {
        --bg0: #060A13;
        --bg1: #0A1226;
        --primary: #38D4FF;
        --primary-dim: #1C8CFF;
        --accent-gold: #FFC85A;
        --accent-red: #FF6682;
        --surface-solid: #101B32;
        --surface-glass: rgba(255, 255, 255, .05);
        --line: rgba(180, 212, 255, .16);
        --line-bright: rgba(56, 212, 255, .45);
        --ink-1: #F2F7FF;
        --ink-2: #A6B7D9;
        --ink-3: #61739B;
        --btn-glow: 0 0 22px rgba(56, 212, 255, .35);
        --radius-md: 16px;
        --radius-glass: 20px;
        --content-w: 1280px;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background: var(--bg0);
        color: var(--ink-1);
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        font-size: 15px;
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
        padding-top: 112px;
    }

    a {
        color: inherit;
        text-decoration: none;
        transition: color .25s ease;
    }

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

    button,
    input,
    textarea {
        font-family: inherit;
        transition: all .25s ease;
    }

    .wrap {
        max-width: var(--content-w);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    .text-gradient {
        background: linear-gradient(135deg, #9BFFFF 0%, var(--primary) 45%, #7CA7FF 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .bg-grid {
        background-image: radial-gradient(rgba(56, 212, 255, .12) 1px, transparent 1px);
        background-size: 28px 28px;
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 13px;
        letter-spacing: .16em;
        color: var(--primary);
        text-transform: uppercase;
        font-weight: 700;
        line-height: 1;
    }

    .section-label span {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 28px;
        height: 28px;
        border: 1px solid rgba(56, 212, 255, .35);
        border-radius: 8px;
        font-size: 13px;
        letter-spacing: 0;
        padding: 0 6px;
        background: rgba(56, 212, 255, .08);
        box-shadow: 0 0 14px rgba(56, 212, 255, .14) inset;
    }

    .glass {
        background: var(--surface-glass);
        border: 1px solid var(--line);
        border-radius: var(--radius-glass);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 52px;
        padding: 0 28px;
        border-radius: 12px;
        font-size: 15px;
        font-weight: 600;
        gap: 8px;
        border: 1px solid transparent;
        cursor: pointer;
        transition: transform .25s, box-shadow .25s, background .25s, border-color .25s, filter .25s;
    }

    .btn:focus-visible,
    a:focus-visible {
        outline: 2px dashed var(--primary);
        outline-offset: 4px;
    }

    .btn-cta {
        background: linear-gradient(135deg, var(--primary-dim), var(--primary));
        color: #03122A;
        min-width: 160px;
        box-shadow: 0 8px 30px rgba(28, 140, 255, .18);
    }

    .btn-cta:hover {
        filter: brightness(1.15);
        box-shadow: var(--btn-glow);
        transform: translateY(-2px);
    }

    .btn-ghost {
        background: rgba(56, 212, 255, .03);
        border: 1px solid var(--line-bright);
        color: var(--primary);
    }

    .btn-ghost:hover {
        background: rgba(56, 212, 255, .1);
        border-color: var(--primary);
        transform: translateY(-2px);
    }

    .btn-gold {
        background: linear-gradient(135deg, rgba(255, 200, 90, .16), rgba(255, 200, 90, .28));
        border: 1px solid rgba(255, 200, 90, .45);
        color: #FFD98A;
        min-height: 42px;
    }

    .btn-gold:hover {
        background: linear-gradient(135deg, rgba(255, 200, 90, .28), rgba(255, 200, 90, .42));
        transform: translateY(-1px);
    }

    .btn-breathe {
        animation: breath 2.4s ease-in-out infinite;
    }

    @keyframes breath {
        0%,
        100% {
            box-shadow: 0 8px 30px rgba(28, 140, 255, .16);
        }
        50% {
            box-shadow: 0 8px 40px rgba(56, 212, 255, .34);
        }
    }

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 100;
        background: rgba(6, 12, 26, .78);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--line);
    }

    .brand-row {
        min-height: 64px;
        transition: min-height .25s ease;
    }

    .channel-row {
        border-top: 1px solid rgba(180, 212, 255, .08);
        min-height: 44px;
        transition: opacity .25s ease;
    }

    .site-header.compact .brand-row {
        min-height: 52px;
    }

    .site-header.compact .channel-row {
        opacity: .92;
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        font-size: 22px;
        font-weight: 800;
        letter-spacing: -0.01em;
        color: var(--ink-1);
        white-space: nowrap;
    }

    .brand-mark {
        width: 32px;
        height: 32px;
        flex: 0 0 32px;
        border-radius: 10px;
        border: 1px solid rgba(56, 212, 255, .65);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        box-shadow: 0 0 18px rgba(56, 212, 255, .18), inset 0 0 12px rgba(56, 212, 255, .12);
    }

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

    .header-cta-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 38px;
        padding: 0 18px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--primary-dim), var(--primary));
        color: #03122A;
        font-size: 14px;
        font-weight: 600;
        box-shadow: 0 0 18px rgba(56, 212, 255, .2);
        transition: all .25s ease;
    }

    .header-cta-btn:hover {
        filter: brightness(1.15);
        box-shadow: var(--btn-glow);
        transform: translateY(-1px);
    }

    .channel-scroll {
        display: flex;
        align-items: center;
        gap: 8px;
        overflow-x: auto;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }

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

    .channel-link {
        display: inline-flex;
        align-items: center;
        white-space: nowrap;
        height: 44px;
        padding: 0 14px;
        color: var(--ink-2);
        font-size: 15px;
        line-height: 1;
        border-bottom: 2px solid transparent;
        transition: all .2s ease;
    }

    .channel-link:hover {
        color: var(--ink-1);
    }

    .channel-link.active {
        color: var(--primary);
        border-image: linear-gradient(90deg, rgba(56, 212, 255, .85), rgba(56, 212, 255, 0)) 9;
        border-bottom-style: solid;
    }

    .mobile-trigger {
        width: 40px;
        height: 40px;
        border: 1px solid var(--line);
        border-radius: 10px;
        background: rgba(56, 212, 255, .06);
        color: var(--ink-1);
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .mobile-drop {
        background: rgba(6, 12, 26, .96);
        border-top: 1px solid var(--line);
        padding: 12px 16px;
        display: none;
    }

    .mobile-drop.open {
        display: block;
    }

    .mobile-drop a {
        display: block;
        padding: 10px 4px;
        border-bottom: 1px solid rgba(180, 212, 255, .08);
        color: var(--ink-2);
    }

    .mobile-drop a.active {
        color: var(--primary);
    }

    .hero {
        background-color: #060A13;
        background-size: cover;
        background-position: center;
        position: relative;
        overflow: hidden;
        min-height: 660px;
    }

    .hero-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(6, 11, 22, .93) 6%, rgba(6, 11, 22, .65) 48%, rgba(6, 11, 22, .2) 100%);
    }

    .hero-overlay-2 {
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(6, 11, 22, .50) 0%, rgba(6, 11, 22, 0) 30%, rgba(6, 11, 22, .86) 100%);
    }

    .kv-card {
        position: absolute;
        right: 40px;
        bottom: 46px;
        max-width: 320px;
        padding: 20px;
        border-radius: 20px;
        background: rgba(16, 27, 50, .58);
        border: 1px solid rgba(180, 212, 255, .18);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
    }

    .hero-signal-line {
        pointer-events: none;
        position: absolute;
        top: 110px;
        right: 42%;
        width: 220px;
        height: 1px;
        background: linear-gradient(90deg, rgba(56, 212, 255, 0), rgba(56, 212, 255, .6), rgba(56, 212, 255, 0));
        transform: rotate(18deg);
    }

    .stat-strip {
        background: rgba(10, 18, 38, .72);
        border: 1px solid rgba(180, 212, 255, .12);
        border-left: 0;
        border-right: 0;
        backdrop-filter: blur(12px);
    }

    .stat-cell {
        display: flex;
        flex-direction: column;
        gap: 4px;
        padding: 22px 28px;
        border-right: 1px solid rgba(180, 212, 255, .12);
    }

    .stat-cell:last-child {
        border-right: 0;
    }

    .stat-value {
        font-size: 34px;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: .02em;
        line-height: 1.1;
        font-variant-numeric: tabular-nums;
    }

    .stat-unit {
        font-size: 13px;
        color: var(--ink-3);
        line-height: 1.4;
    }

    .step-card {
        background: rgba(255, 255, 255, .03);
        border: 1px solid var(--line);
        border-radius: 16px;
        padding: 28px;
        position: relative;
        transition: all .3s ease;
        min-height: 220px;
        display: flex;
        flex-direction: column;
    }

    .step-card .num {
        font-size: 56px;
        line-height: 1;
        font-weight: 800;
        letter-spacing: .01em;
        color: rgba(56, 212, 255, .16);
        -webkit-text-stroke: 1px rgba(56, 212, 255, .34);
        position: absolute;
        top: 18px;
        right: 20px;
    }

    .step-card:hover {
        background: rgba(56, 212, 255, .05);
        border-color: var(--line-bright);
        box-shadow: 0 10px 30px rgba(0, 0, 0, .22);
        transform: translateY(-3px);
    }

    .step-card.first {
        background: rgba(56, 212, 255, .06);
        box-shadow: 0 0 24px rgba(56, 212, 255, .12);
    }

    .step-card h3 {
        font-size: 24px;
        font-weight: 700;
        margin: 0 0 10px;
    }

    .step-card p {
        color: var(--ink-2);
        font-size: 14px;
        line-height: 1.8;
        margin: 0;
    }

    .reward-card {
        border-radius: 16px;
        border: 1px solid var(--line);
        background: var(--surface-solid);
        overflow: hidden;
        transition: all .3s ease;
    }

    .reward-card:hover {
        border-color: var(--line-bright);
        box-shadow: 0 14px 36px rgba(0, 0, 0, .24), 0 0 30px rgba(56, 212, 255, .1);
        transform: translateY(-3px);
    }

    .reward-badge {
        position: absolute;
        top: 14px;
        right: 14px;
        padding: 5px 12px;
        border-radius: 8px;
        background: rgba(255, 200, 90, .16);
        color: var(--accent-gold);
        border: 1px solid rgba(255, 200, 90, .5);
        font-size: 12px;
        letter-spacing: .08em;
        line-height: 1.4;
        z-index: 2;
        backdrop-filter: blur(8px);
    }

    .task-list {
        display: flex;
        flex-direction: column;
    }

    .task-row {
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 16px 0;
        border-bottom: 1px solid rgba(180, 212, 255, .08);
    }

    .task-row:last-child {
        border-bottom: 0;
    }

    .task-state {
        width: 24px;
        height: 24px;
        flex: 0 0 24px;
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--line-bright);
        color: var(--primary);
        font-size: 13px;
    }

    .task-row.done .task-state {
        background: rgba(56, 212, 255, .18);
    }

    .task-row.done {
        opacity: .6;
    }

    .task-btn {
        border: 1px solid var(--line-bright);
        color: var(--primary);
        background: rgba(56, 212, 255, .05);
        border-radius: 8px;
        min-height: 34px;
        padding: 0 14px;
        font-size: 13px;
        cursor: pointer;
        white-space: nowrap;
    }

    .task-btn:hover {
        background: rgba(56, 212, 255, .14);
    }

    .task-btn:disabled {
        opacity: .45;
        border-color: var(--line);
        color: var(--ink-3);
        background: rgba(255, 255, 255, .04);
        cursor: not-allowed;
        box-shadow: none;
        transform: none;
    }

    .progress-glass {
        background: rgba(255, 255, 255, .04);
        border: 1px solid var(--line);
        border-radius: 20px;
        padding: 28px;
    }

    .bar-track {
        background: rgba(255, 255, 255, .06);
        border-radius: 999px;
        height: 10px;
        overflow: hidden;
    }

    .bar-fill {
        height: 100%;
        background: linear-gradient(90deg, var(--primary-dim), var(--primary));
        border-radius: 999px;
        box-shadow: 0 0 12px rgba(56, 212, 255, .5);
        width: 68%;
    }

    .news-row {
        display: grid;
        grid-template-columns: 90px 120px 1fr auto;
        align-items: center;
        gap: 16px;
        padding: 18px 12px;
        border-bottom: 1px solid rgba(180, 212, 255, .1);
        transition: background .2s;
    }

    .news-row:hover {
        background: rgba(56, 212, 255, .04);
    }

    .news-date {
        color: var(--ink-3);
        font-size: 13px;
        font-variant-numeric: tabular-nums;
        letter-spacing: .05em;
    }

    .news-arrow {
        color: var(--ink-3);
        transition: all .25s ease;
    }

    .news-row:hover .news-arrow {
        color: var(--primary);
        transform: translateX(4px);
    }

    .news-tag {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 28px;
        padding: 0 12px;
        border-radius: 8px;
        background: rgba(56, 212, 255, .1);
        color: var(--primary);
        border: 1px solid rgba(56, 212, 255, .18);
        white-space: nowrap;
        font-size: 13px;
    }

    .empty-state {
        text-align: center;
        padding: 44px 20px;
        color: var(--ink-3);
        font-size: 14px;
        border: 1px dashed rgba(180, 212, 255, .2);
        border-radius: 16px;
    }

    .cta-band {
        position: relative;
        overflow: hidden;
        background-color: #060A13;
        background-image: linear-gradient(135deg, rgba(28, 140, 255, .25), rgba(255, 102, 130, .05)), url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
    }

    .cta-band:before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(6, 11, 22, .85), rgba(6, 11, 22, .5), rgba(6, 11, 22, .9));
    }

    .faq-item {
        border-radius: 14px;
        border: 1px solid var(--line);
        background: rgba(255, 255, 255, .028);
        overflow: hidden;
        transition: border-color .3s, background .3s;
    }

    .faq-item[open] {
        border-color: rgba(56, 212, 255, .35);
        background: rgba(56, 212, 255, .03);
    }

    .faq-item summary {
        cursor: pointer;
        list-style: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        padding: 18px 20px;
        font-size: 16px;
        color: var(--ink-1);
        border-left: 2px solid rgba(56, 212, 255, .25);
        transition: border-color .3s;
        user-select: none;
    }

    .faq-item[open] summary {
        border-left-color: var(--primary);
    }

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

    .faq-icon {
        width: 22px;
        height: 22px;
        flex: 0 0 22px;
        border: 1px solid var(--line);
        border-radius: 50%;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        transition: transform .3s;
    }

    .faq-item[open] .faq-icon {
        transform: rotate(45deg);
    }

    .faq-body {
        padding: 0 20px 20px;
        color: var(--ink-2);
        font-size: 14px;
        line-height: 1.9;
    }

    footer {
        background: #05070D;
        border-top: 1px solid transparent;
        border-image: linear-gradient(90deg, rgba(56, 212, 255, .4), transparent 70%) 1;
    }

    .footer-head {
        border-bottom: 1px solid rgba(180, 212, 255, .08);
    }

    .footer-links a {
        color: var(--ink-2);
        display: inline-flex;
        margin: 0 0 11px;
        text-decoration: none;
    }

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

    .footer-copy {
        color: var(--ink-3);
        font-size: 13px;
    }

    @media (max-width: 768px) {
        body {
            padding-top: 100px;
        }
        .brand-logo {
            font-size: 18px;
        }
        .wrap {
            padding-left: 16px;
            padding-right: 16px;
        }
        .hero {
            min-height: 560px;
        }
        .stat-cell {
            padding: 16px 12px;
        }
        .stat-value {
            font-size: 26px;
        }
        .news-row {
            grid-template-columns: 1fr 84px;
            gap: 8px 12px;
        }
        .news-date {
            grid-column: 2 / 3;
            grid-row: 1;
            text-align: right;
        }
        .news-tag {
            grid-column: 1 / 2;
            grid-row: 1;
            width: fit-content;
        }
        .news-row .title-wrap {
            grid-column: 1 / 3;
            grid-row: 2 / 3;
        }
        .news-row .news-desc {
            grid-row: 3;
            grid-column: 1 / 3;
        }
        .news-row .news-arrow {
            display: none;
        }
        .kv-card {
            position: static;
            max-width: none;
            margin: 8px auto 20px;
        }
        .channel-link {
            height: 40px;
            font-size: 14px;
        }
        .hero-signal-line {
            display: none;
        }
    }

    @media (max-width: 520px) {
        .step-card {
            min-height: 0;
        }
        .stat-cell {
            border-right: 0;
            border-bottom: 1px solid rgba(180, 212, 255, .1);
        }
        .stat-strip {
            gap: 0;
        }
        .btn {
            padding: 0 20px;
        }
    }

/* roulang page: category1 */
:root {
            --bg0: #060A13;
            --bg1: #0A1226;
            --bg-glow: rgba(23, 91, 183, 0.18);
            --primary: #38D4FF;
            --primary-dim: #1C8CFF;
            --accent-gold: #FFC85A;
            --accent-red: #FF6682;
            --surface-glass: rgba(255, 255, 255, 0.05);
            --surface-solid: #101B32;
            --line: rgba(180, 212, 255, 0.16);
            --line-bright: rgba(56, 212, 255, 0.45);
            --ink-1: #F2F7FF;
            --ink-2: #A6B7D9;
            --ink-3: #61739B;
            --btn-glow: 0 0 22px rgba(56, 212, 255, 0.35);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg0);
            color: var(--ink-2);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            font-size: 15px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s, border-color 0.25s, background 0.25s, box-shadow 0.25s, transform 0.25s;
        }

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

        ::selection {
            background: rgba(56, 212, 255, .25);
            color: #fff;
        }

        .wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .text-glow {
            text-shadow: 0 0 18px rgba(56, 212, 255, .35);
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            color: var(--primary);
            border: 1px solid rgba(56, 212, 255, .45);
            border-radius: 8px;
            box-shadow: 0 0 14px rgba(56, 212, 255, .25);
            background: linear-gradient(135deg, rgba(56, 212, 255, .16), rgba(28, 140, 255, .06));
        }

        #siteHeader {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 12, 26, .78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            transition: box-shadow .3s;
        }

        #siteHeader.scrolled {
            box-shadow: 0 10px 32px rgba(0, 0, 0, .35);
        }

        .toolbar-row {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: height .3s;
        }

        .toolbar-row .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .toolbar-row .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .01em;
            white-space: nowrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 52px;
            min-width: 160px;
            padding: 0 24px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 15px;
            color: #03122A;
            background: linear-gradient(135deg, var(--primary-dim), var(--primary));
            box-shadow: 0 8px 22px rgba(56, 212, 255, .28);
            border: 0;
            cursor: pointer;
            transition: all .3s;
        }

        .btn-primary:hover {
            filter: brightness(1.12);
            box-shadow: var(--btn-glow);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 52px;
            min-width: 160px;
            padding: 0 24px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
            background: transparent;
            border: 1px solid var(--line-bright);
            cursor: pointer;
            transition: all .3s;
        }

        .btn-outline:hover {
            background: rgba(56, 212, 255, .08);
            border-color: var(--primary);
        }

        .btn-ghost-text {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
            font-weight: 600;
        }

        .btn-ghost-text .arrow {
            transition: transform .25s;
        }

        .btn-ghost-text:hover .arrow {
            transform: translateX(4px);
        }

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

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

        .channel-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            height: 44px;
            padding: 0 18px;
            font-size: 15px;
            color: var(--ink-2);
            white-space: nowrap;
            transition: color .25s;
        }

        .channel-link::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0;
            transform: scaleX(.4);
            transition: all .3s;
        }

        .channel-link:hover {
            color: var(--ink-1);
        }

        .channel-link.active {
            color: var(--primary);
        }

        .channel-link.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .channels-mask {
            position: relative;
        }

        .channels-mask::after {
            content: "";
            position: absolute;
            right: 0;
            top: 0;
            bottom: 0;
            width: 40px;
            background: linear-gradient(90deg, transparent, rgba(6, 10, 19, .88));
            pointer-events: none;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--primary);
            letter-spacing: .14em;
            font-weight: 600;
        }

        .section-eyebrow .line {
            display: inline-block;
            width: 28px;
            height: 1px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(56, 212, 255, .6);
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--ink-1);
            margin-top: 10px;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }

        .hero-category {
            position: relative;
            padding-top: 164px;
            padding-bottom: 96px;
            min-height: 560px;
            display: flex;
            align-items: flex-end;
            background: linear-gradient(90deg, rgba(6, 11, 22, .94) 10%, rgba(6, 11, 22, .66) 52%, rgba(6, 11, 22, .25)), url('/assets/images/backpic/back-1.webp') center right / cover no-repeat;
            border-bottom: 1px solid var(--line);
            overflow: hidden;
        }

        .hero-category .bg-orb {
            position: absolute;
            width: 360px;
            height: 360px;
            right: 5%;
            bottom: -80px;
            background: radial-gradient(circle, rgba(56, 212, 255, .18), transparent 68%);
            pointer-events: none;
        }

        .hero-meta-strip {
            position: absolute;
            right: 5%;
            top: 168px;
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(10, 18, 38, .62);
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 12px 18px;
            backdrop-filter: blur(12px);
            font-size: 13px;
            color: var(--ink-2);
        }

        .hero-meta-strip .dot {
            width: 8px;
            height: 8px;
            border-radius: 999px;
            background: var(--primary);
            box-shadow: 0 0 10px var(--primary);
            animation: pulse 2.4s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: .4; transform: scale(.78); }
        }

        .guide-index-card {
            background: linear-gradient(145deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .01));
            border: 1px solid var(--line);
            border-radius: 20px;
            padding: 28px;
            display: flex;
            align-items: flex-start;
            gap: 18px;
            transition: all .3s;
            position: relative;
            overflow: hidden;
        }

        .guide-index-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, transparent, var(--primary), transparent);
            opacity: 0;
            transition: opacity .3s;
        }

        .guide-index-card:hover {
            border-color: var(--line-bright);
            box-shadow: 0 14px 30px rgba(0, 0, 0, .26);
            transform: translateY(-3px);
        }

        .guide-index-card:hover::before {
            opacity: 1;
        }

        .guide-index-num {
            font-size: 40px;
            font-weight: 800;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1px rgba(56, 212, 255, .65);
            white-space: nowrap;
        }

        .aside-info-card {
            background: rgba(16, 27, 50, .85);
            border: 1px solid var(--line);
            border-radius: 20px;
            padding: 26px;
            height: 100%;
        }

        .core-card {
            background: linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015)), url('/assets/images/coverpic/cover-4.png') center bottom / cover no-repeat;
            background-blend-mode: normal;
            border: 1px solid var(--line);
            border-radius: 24px;
            min-height: 560px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: flex-end;
        }

        .core-card .core-shade {
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, rgba(6, 10, 19, .06) 20%, rgba(6, 10, 19, .78) 72%, rgba(6, 10, 19, .95));
            border-radius: 24px;
        }

        .core-card .core-content {
            position: relative;
            padding: 32px;
            width: 100%;
        }

        .core-card .core-badge {
            display: inline-block;
            font-size: 12px;
            color: #04101F;
            background: linear-gradient(135deg, var(--primary-dim), var(--primary));
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .core-title {
            font-size: 26px;
            color: #fff;
            font-weight: 700;
            line-height: 1.4;
        }

        .core-copy {
            font-size: 15px;
            color: var(--ink-2);
            line-height: 1.85;
            max-width: 560px;
        }

        .step-main-card {
            background: linear-gradient(145deg, rgba(56, 212, 255, .12), rgba(10, 18, 38, .85) 62%);
            border: 1px solid var(--line-bright);
            border-radius: 24px;
            padding: 30px;
            box-shadow: var(--btn-glow);
            position: relative;
            overflow: hidden;
            height: 100%;
        }

        .step-card {
            background: rgba(255, 255, 255, .035);
            border: 1px solid var(--line);
            border-radius: 20px;
            padding: 24px;
            transition: all .3s;
            height: 100%;
        }

        .step-card:hover {
            border-color: var(--line-bright);
            box-shadow: 0 14px 26px rgba(0, 0, 0, .24);
            transform: translateY(-2px);
        }

        .step-num {
            font-size: 52px;
            font-weight: 800;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1.5px rgba(56, 212, 255, .75);
            font-family: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
            letter-spacing: .02em;
        }

        .status-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(56, 212, 255, .08);
            color: var(--primary);
            border: 1px solid rgba(56, 212, 255, .18);
        }

        .timeline-dot {
            width: 10px;
            height: 10px;
            border-radius: 999px;
            border: 2px solid var(--primary);
            background: var(--bg0);
            box-shadow: 0 0 0 4px rgba(56, 212, 255, .12);
        }

        .faq-item {
            background: rgba(255, 255, 255, .03);
            border: 1px solid var(--line);
            border-left: 3px solid rgba(56, 212, 255, .35);
            border-radius: 16px;
            margin-bottom: 14px;
            transition: border-color .3s, background .25s;
        }

        .faq-item[open] {
            border-left-color: var(--primary);
            background: rgba(56, 212, 255, .04);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            color: var(--ink-1);
            font-weight: 600;
            font-size: 16px;
        }

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

        .faq-item summary .indicator {
            width: 24px;
            height: 24px;
            flex: 0 0 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 99px;
            color: var(--primary);
            border: 1px solid var(--line-bright);
            font-size: 18px;
            transition: transform .3s;
        }

        .faq-item[open] summary .indicator {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 22px 20px;
            color: var(--ink-2);
            font-size: 14px;
            line-height: 1.9;
        }

        .cta-zone {
            background: linear-gradient(180deg, rgba(6, 10, 19, .6), rgba(6, 10, 19, .9)), url('/assets/images/backpic/back-2.webp') center / cover;
            border-top: 1px solid var(--line);
            position: relative;
            overflow: hidden;
        }

        .footer-links a {
            color: var(--ink-2);
            padding: 4px 0;
            font-size: 14px;
            transition: all .25s;
        }

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

        .footer-copy {
            font-size: 13px;
            color: var(--ink-3);
        }

        @media (max-width: 1024px) {
            .toolbar-row {
                height: 58px;
            }

            .hero-category {
                min-height: 480px;
                padding-top: 150px;
                padding-bottom: 80px;
            }
        }

        @media (max-width: 768px) {
            .wrap {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-title {
                font-size: 24px;
            }

            .toolbar-row .logo-text {
                font-size: 19px;
            }

            .toolbar-row .desktop-only {
                display: none;
            }

            .hero-category {
                min-height: auto;
                padding-top: 138px;
                padding-bottom: 64px;
                background: linear-gradient(180deg, rgba(6, 11, 22, .88), rgba(6, 11, 22, .72)), url('/assets/images/backpic/back-1.webp') center right / cover no-repeat;
            }

            .hero-category .hero-title {
                font-size: 30px;
            }

            .hero-category .hero-sub {
                font-size: 15px;
            }

            .hero-meta-strip {
                position: relative;
                top: auto;
                right: auto;
                margin-top: 24px;
                width: fit-content;
            }

            .core-card {
                min-height: 440px;
            }

            .core-title {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .toolbar-row {
                height: 56px;
                padding: 0 16px;
            }

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

            .channel-link {
                height: 40px;
                padding: 0 13px;
                font-size: 14px;
            }

            .hero-category {
                padding-top: 126px;
            }

            .core-card .core-content {
                padding: 20px;
            }

            .step-num {
                font-size: 40px;
            }
        }

        .focus-visible,
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 2px dashed var(--primary);
            outline-offset: 3px;
        }

        .noise-grid {
            background-image: linear-gradient(rgba(180, 212, 255, .03) 1px, transparent 1px), linear-gradient(90deg, rgba(180, 212, 255, .03) 1px, transparent 1px);
            background-size: 44px 44px;
        }

        .title-rule {
            width: 64px;
            height: 2px;
            margin-top: 14px;
            background: linear-gradient(90deg, var(--primary), transparent);
            box-shadow: 0 0 12px rgba(56, 212, 255, .5);
        }

@keyframes softGlow {
                0%, 100% {
                    box-shadow: 0 0 16px rgba(56, 212, 255, .2);
                }
                50% {
                    box-shadow: 0 0 30px rgba(56, 212, 255, .42);
                }
            }

/* roulang page: article */
:root{
  --bg0:#060A13;
  --bg1:#0A1226;
  --bg-glow:rgba(23,91,183,0.18);
  --primary:#38D4FF;
  --primary-dim:#1C8CFF;
  --accent-gold:#FFC85A;
  --accent-red:#FF6682;
  --surface-glass:rgba(255,255,255,0.05);
  --surface-solid:#101B32;
  --line:rgba(180,212,255,0.16);
  --line-bright:rgba(56,212,255,0.45);
  --ink-1:#F2F7FF;
  --ink-2:#A6B7D9;
  --ink-3:#61739B;
  --btn-glow:0 0 22px rgba(56,212,255,0.35);
  --radius-lg:20px;
  --shadow-card:0 6px 24px rgba(0,0,0,0.18);
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  font-family:var(--font-family);
  background:var(--bg0);
  color:var(--ink-1);
  line-height:1.7;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit}

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

/* ===== Header 双排导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(6,12,26,0.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{
  background:rgba(5,9,18,0.92);
  box-shadow:0 10px 36px rgba(0,0,0,0.24);
}
.site-header.is-scrolled .header-main{height:52px}
.header-main{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  transition:height .3s ease;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:24px;
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--ink-1);
  white-space:nowrap;
}
.brand-mark{
  width:30px;
  height:30px;
  display:grid;
  place-items:center;
  color:var(--primary);
  background:linear-gradient(145deg,rgba(56,212,255,0.18),rgba(28,140,255,0.02));
  border:1px solid var(--line-bright);
  border-radius:9px;
  box-shadow:var(--btn-glow);
  flex:0 0 auto;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.btn-participate{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:12px;
  border:0;
  font-size:14px;
  font-weight:700;
  color:#03122A;
  background:linear-gradient(135deg,var(--primary-dim),var(--primary));
  box-shadow:0 8px 24px rgba(56,212,255,0.22);
  transition:filter .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-participate:hover{
  filter:brightness(1.14);
  box-shadow:var(--btn-glow);
  transform:translateY(-2px);
}
.btn-participate:focus-visible{
  outline:2px dashed var(--primary);
  outline-offset:3px;
}
.btn-participate .fa-solid,.btn-participate .fa-regular{font-size:13px}

.hamburger{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  color:var(--ink-1);
  background:var(--surface-glass);
  border:1px solid var(--line);
  font-size:17px;
  transition:border-color .2s,border-color .2s;
}
.hamburger:hover{border-color:var(--line-bright)}
.hamburger:focus-visible{outline:2px dashed var(--primary);outline-offset:2px}

.channel-bar{
  min-height:44px;
  border-top:1px solid rgba(180,212,255,0.08);
  display:flex;
  align-items:center;
}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
  height:44px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  transition:color .2s ease;
}
.channel-link:hover{color:var(--ink-1)}
.channel-link:focus-visible{outline:2px dashed var(--primary);outline-offset:-2px}
.channel-link.active{color:var(--primary)}
.channel-link.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,rgba(56,212,255,0.1),var(--primary));
  box-shadow:0 -1px 8px rgba(56,212,255,0.4);
}

.mobile-menu{
  display:none;
  background:rgba(7,12,24,0.96);
  border-top:1px solid var(--line);
  padding:10px 16px 16px;
}
.mobile-menu.is-open{display:block}
.mobile-menu a{
  display:block;
  padding:11px 8px;
  color:var(--ink-2);
  font-size:14px;
  border-bottom:1px solid rgba(180,212,255,0.06);
  transition:color .2s,background .2s;
}
.mobile-menu a:hover{color:var(--primary);background:rgba(56,212,255,0.06)}
.mobile-menu a:last-child{border-bottom:0}

/* ===== 文章页 Hero ===== */
.article-hero{
  position:relative;
  padding:76px 0 58px;
  background:
    linear-gradient(100deg,rgba(6,11,22,0.94) 22%,rgba(6,11,22,0.72) 58%,rgba(6,11,22,0.38)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::before{
  content:"";
  position:absolute;
  width:420px;
  height:420px;
  right:-120px;
  top:-160px;
  background:radial-gradient(circle,rgba(28,140,255,0.22),transparent 65%);
  pointer-events:none;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(180,212,255,0.1) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.45;
  pointer-events:none;
}
.article-hero .wrap{position:relative;z-index:2}
.article-hero-inner{max-width:860px}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:20px;
}
.breadcrumb a{
  color:var(--ink-3);
  transition:color .2s;
}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(97,115,155,0.55)}
.breadcrumb .current{
  color:var(--ink-2);
  max-width:180px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border:1px solid rgba(56,212,255,0.25);
  border-radius:999px;
  background:rgba(56,212,255,0.08);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:0.08em;
  margin-bottom:18px;
}
.article-title{
  font-size:44px;
  line-height:1.28;
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--ink-1);
  margin-bottom:20px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 20px;
  color:var(--ink-3);
  font-size:13px;
}
.article-meta .tag-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(56,212,255,0.1);
  border:1px solid rgba(56,212,255,0.2);
  color:var(--primary);
  font-weight:600;
}
.article-meta span{
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.article-meta i{color:var(--ink-3);font-size:13px}
.article-meta time{color:var(--ink-2)}
.article-meta .source-text{color:var(--ink-2)}

/* ===== 正文阅读区 ===== */
.site-main{background:var(--bg0)}
.article-main-pad{padding:52px 0 20px}
.article-card{
  max-width:860px;
  margin:0 auto;
  background:var(--surface-solid);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:52px 56px 48px;
}

.article-body{
  font-size:16px;
  line-height:1.9;
  color:var(--ink-2);
  letter-spacing:0.01em;
}
.article-body p{
  margin:0 0 1.5em;
  color:var(--ink-2);
  font-size:16px;
}
.article-body h2{
  font-size:24px;
  font-weight:700;
  color:var(--ink-1);
  margin:48px 0 16px;
  line-height:1.4;
  letter-spacing:-0.01em;
}
.article-body h3{
  font-size:19px;
  font-weight:700;
  color:var(--ink-1);
  margin:34px 0 12px;
  line-height:1.45;
}
.article-body a{
  color:var(--primary);
  text-decoration:underline;
  text-decoration-color:rgba(56,212,255,0.4);
  transition:text-decoration-color .2s,color .2s;
}
.article-body a:hover{color:#7BE6FF;text-decoration-color:var(--primary)}
.article-body img{
  max-width:100%;
  height:auto;
  border-radius:12px;
  margin:28px auto;
}
.article-body figure{
  margin:28px 0;
}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--ink-3);
  margin-top:12px;
}
.article-body blockquote{
  position:relative;
  margin:28px 0;
  padding:18px 22px 18px 26px;
  background:rgba(56,212,255,0.06);
  border-left:3px solid var(--primary);
  border-radius:0 14px 14px 0;
  color:var(--ink-1);
  font-size:16px;
}
.article-body blockquote p{margin:0;color:var(--ink-1)}
.article-body ul,.article-body ol{
  margin:0 0 1.6em;
  padding-left:1.5em;
  color:var(--ink-2);
}
.article-body li{
  margin-bottom:10px;
}
.article-body li::marker{
  color:var(--primary);
}
.article-body hr{
  border:none;
  height:1px;
  background:var(--line);
  margin:40px 0;
}
.article-body strong{color:var(--ink-1)}

.article-divider{
  border:none;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--line) 10%,var(--line) 90%,transparent);
  margin:36px 0 0;
}
.article-furniture{
  max-width:860px;
  margin:0 auto;
  padding:24px 6px 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.article-furniture-label{
  font-size:13px;
  color:var(--ink-3);
}
.link-return{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  transition:gap .2s,color .2s;
}
.link-return:hover{gap:10px;color:#7BE6FF}

/* ===== 延伸内容卡片区 ===== */
.extras-section{
  max-width:860px;
  margin:0 auto;
  padding:38px 0 72px;
}
.extras-title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:22px;
  font-weight:700;
  color:var(--ink-1);
  margin-bottom:18px;
}
.extras-title::before{
  content:"";
  width:6px;
  height:22px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-dim));
}
.extras-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.extra-card{
  display:flex;
  align-items:center;
  gap:0;
  background:var(--surface-glass);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.extra-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-bright);
  background:rgba(255,255,255,0.08);
  box-shadow:0 18px 40px rgba(0,0,0,0.36),0 0 0 1px var(--line-bright);
}
.extra-card:focus-visible{
  outline:2px dashed var(--primary);
  outline-offset:3px;
}
.extra-card-image{
  width:110px;
  height:110px;
  flex:0 0 auto;
  overflow:hidden;
  background:var(--bg1);
}
.extra-card-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.extra-card:hover .extra-card-image img{
  transform:scale(1.05);
}
.extra-card-body{
  padding:18px 20px;
}
.extra-card-body small{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  color:var(--primary);
  margin-bottom:8px;
  letter-spacing:0.04em;
}
.extra-card-body h3{
  font-size:16px;
  font-weight:700;
  color:var(--ink-1);
  line-height:1.4;
  margin-bottom:8px;
}
.extra-card-body p{
  font-size:13px;
  color:var(--ink-3);
  line-height:1.65;
}
.extra-card-body .go{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:10px;
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  transition:gap .2s;
}
.extra-card-body .go:hover{gap:10px}

/* ===== 未找到 ===== */
.empty-state{
  position:relative;
  padding:110px 24px;
  text-align:center;
  background:
    linear-gradient(120deg,rgba(6,11,22,0.95),rgba(10,18,38,0.88)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.empty-state-box{
  max-width:560px;
  margin:0 auto;
  background:var(--surface-glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(10px);
  padding:52px 32px;
}
.empty-state-box .icon-empty{
  font-size:40px;
  color:var(--primary);
  margin-bottom:18px;
  display:inline-flex;
}
.empty-state-box h1{
  font-size:28px;
  font-weight:800;
  color:var(--ink-1);
  margin-bottom:14px;
}
.empty-state-box p{
  color:var(--ink-2);
  font-size:15px;
  margin-bottom:26px;
}
.btn-home{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  color:#03122A;
  border-radius:12px;
  background:linear-gradient(135deg,var(--primary-dim),var(--primary));
  font-size:15px;
  font-weight:700;
  box-shadow:var(--btn-glow);
  transition:filter .2s,box-shadow .2s,transform .2s;
}
.btn-home:hover{
  filter:brightness(1.15);
  transform:translateY(-2px);
  box-shadow:var(--btn-glow);
}

/* ===== Footer ===== */
footer{
  background:#05070D;
  border-top:1px solid rgba(180,212,255,0.12);
}
.footer-head{
  border-bottom:1px solid rgba(180,212,255,0.12);
}
.brand-mark-footer{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  color:var(--primary);
  border:1px solid var(--line-bright);
  background:linear-gradient(145deg,rgba(56,212,255,0.16),transparent);
  border-radius:10px;
  box-shadow:var(--btn-glow);
}
.footer-links a{
  display:inline-block;
  padding:6px 0;
  color:var(--ink-2);
  font-size:14px;
  transition:color .2s,transform .2s;
  width:max-content;
}
.footer-links a:hover{
  color:var(--primary);
  transform:translateX(4px);
}
.footer-copy{
  color:var(--ink-3);
  font-size:13px;
  line-height:1.7;
}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .article-title{font-size:38px}
  .article-card{padding:44px 40px}
}
@media(max-width:768px){
  .wrap{padding-left:16px;padding-right:16px}
  .header-main{height:56px}
  .site-header.is-scrolled .header-main{height:52px}
  .brand-logo{font-size:20px;gap:10px}
  .brand-mark{width:28px;height:28px}
  .btn-participate{height:40px;padding:0 16px;font-size:13px}
  .hamburger{display:flex}
  .channel-bar{position:relative}
  .article-hero{padding:52px 0 42px}
  .article-title{font-size:32px;line-height:1.32}
  .article-meta{gap:10px 14px}
  .article-main-pad{padding:26px 0 12px}
  .article-card{
    padding:32px 22px;
    border-radius:16px;
  }
  .article-body{font-size:15px;line-height:1.85}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:17px}
  .extras-section{padding:26px 0 56px}
  .extras-grid{grid-template-columns:1fr;gap:14px}
  .extra-card-image{width:100px;height:100px}
  .empty-state{padding:80px 16px}
  .empty-state-box{padding:36px 20px}
}
@media(max-width:520px){
  .header-actions .btn-participate span.btn-label{display:none}
  .header-actions .btn-participate{
    width:42px;
    padding:0;
    font-size:15px;
  }
  .channel-link{padding:0 10px;font-size:14px}
  .article-hero-inner .article-eyebrow{font-size:12px}
  .article-title{font-size:27px}
  .article-meta{font-size:12px}
  .article-card{padding:28px 18px}
  .article-furniture{flex-direction:column;align-items:flex-start}
  .extra-card{flex-direction:row}
  .extra-card-image{width:88px;height:100%}
}

/* roulang page: category2 */
:root {
            --bg0: #060A13;
            --bg1: #0A1226;
            --bg-glow: rgba(23, 91, 183, 0.18);
            --primary: #38D4FF;
            --primary-dim: #1C8CFF;
            --accent-gold: #FFC85A;
            --accent-red: #FF6682;
            --surface-glass: rgba(255, 255, 255, 0.05);
            --surface-solid: #101B32;
            --line: rgba(180, 212, 255, 0.16);
            --line-bright: rgba(56, 212, 255, 0.45);
            --ink-1: #F2F7FF;
            --ink-2: #A6B7D9;
            --ink-3: #61739B;
            --btn-glow: 0 0 22px rgba(56, 212, 255, 0.35);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background: var(--bg0);
            color: var(--ink-1);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease, border-color .25s ease, background-color .25s ease, box-shadow .25s ease, transform .25s ease;
        }

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

        a:focus-visible,
        button:focus-visible {
            outline: 2px dashed var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

        .wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .wrap {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 双排导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(6, 12, 26, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            transition: box-shadow .3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 12px 40px rgba(0, 0, 0, .35);
        }

        .header-toolbar {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: height .25s ease;
        }

        .header-main.scrolled .header-toolbar {
            height: 52px;
        }

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

        .brand-mark {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(28, 140, 255, .25), rgba(56, 212, 255, .12));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            box-shadow: 0 0 18px rgba(56, 212, 255, .3), inset 0 0 12px rgba(56, 212, 255, .12);
            border: 1px solid rgba(56, 212, 255, .25);
        }

        .brand-text {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .01em;
            white-space: nowrap;
        }

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

        .btn-participate {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 20px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            color: #03122A;
            background: linear-gradient(135deg, var(--primary-dim), var(--primary));
            box-shadow: 0 4px 18px rgba(56, 212, 255, .28);
            transition: filter .2s ease, box-shadow .2s ease, transform .2s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-participate:hover {
            filter: brightness(1.15);
            box-shadow: var(--btn-glow);
            transform: translateY(-2px);
        }

        .channel-nav {
            height: 44px;
            border-top: 1px solid rgba(180, 212, 255, .08);
            display: flex;
            align-items: center;
        }

        .channel-scroll {
            display: flex;
            align-items: center;
            gap: 32px;
            height: 100%;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

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

        .channel-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            font-size: 15px;
            color: var(--ink-2);
            height: 100%;
            font-weight: 500;
            letter-spacing: .02em;
            transition: color .2s ease;
        }

        .channel-link:hover {
            color: var(--ink-1);
        }

        .channel-link.active {
            color: var(--primary);
        }

        .channel-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -1px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), transparent);
        }

        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--line);
            background: rgba(255, 255, 255, 0.04);
            color: var(--ink-1);
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .brand-text {
                font-size: 19px;
            }
            .channel-scroll {
                gap: 24px;
            }
            .toolbar-actions .btn-participate {
                height: 34px;
                padding: 0 14px;
                font-size: 13px;
            }
        }

        /* ===== 页脚 ===== */
        footer {
            background: #05070D;
            border-top: 1px solid var(--line);
            position: relative;
        }

        footer::before {
            content: "";
            position: absolute;
            top: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
        }

        .footer-links a {
            font-size: 14px;
            color: var(--ink-2);
            padding: 5px 0;
            transition: color .2s ease;
        }

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

        .footer-copy {
            font-size: 13px;
            color: var(--ink-3);
        }

        /* ===== 通用数据卡 / 玻璃面板 ===== */
        .glass-panel {
            background: var(--surface-glass);
            border: 1px solid var(--line);
            border-radius: 20px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            letter-spacing: .14em;
            color: var(--primary);
            text-transform: uppercase;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .section-tag .num {
            font-family: "Barlow Condensed", system-ui, sans-serif;
            font-weight: 700;
            opacity: .8;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--ink-2);
            max-width: 640px;
            line-height: 1.8;
        }

        /* 列表行 */
        .info-row {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 24px 12px;
            border-bottom: 1px solid rgba(180, 212, 255, 0.08);
            transition: background .25s ease;
        }

        .info-row:hover {
            background: rgba(56, 212, 255, 0.03);
        }

        .info-row .date {
            min-width: 80px;
            font-size: 14px;
            color: var(--ink-3);
            font-family: "Barlow Condensed", "PingFang SC", monospace;
            font-weight: 600;
        }

        .info-row .tag {
            display: inline-flex;
            padding: 3px 12px;
            border-radius: 8px;
            background: rgba(56, 212, 255, 0.12);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
        }

        .info-row .title-link {
            font-size: 16px;
            font-weight: 500;
            color: var(--ink-1);
            transition: color .2s ease;
        }

        .info-row .title-link:hover {
            color: var(--primary);
        }

        .info-row .summary {
            font-size: 14px;
            color: var(--ink-2);
        }

        @media (max-width: 768px) {
            .info-row {
                flex-wrap: wrap;
                gap: 10px;
                padding: 18px 0;
            }
            .info-row .summary {
                width: 100%;
                margin-left: 0;
            }
            .info-row .date {
                min-width: auto;
                margin-right: 6px;
            }
        }

        /* ===== CTA 呼吸 ===== */
        .cta-pulse {
            position: relative;
            animation: pulseFlow 2.4s infinite;
        }

        @keyframes pulseFlow {
            0%, 100% {
                box-shadow: 0 0 18px rgba(56, 212, 255, 0.18);
            }
            50% {
                box-shadow: 0 0 38px rgba(56, 212, 255, 0.42);
            }
        }

        /* 页面背景纹理 */
        .bg-texture {
            position: relative;
        }

        .bg-texture::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(56, 212, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(56, 212, 255, 0.03) 1px, transparent 1px);
            background-size: 56px 56px;
            pointer-events: none;
        }

        /* ===== FAQ details ===== */
        details.faq-item {
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 0;
            background: rgba(255, 255, 255, 0.03);
            transition: border-color .25s ease, box-shadow .25s ease;
            margin-bottom: 14px;
            overflow: hidden;
            border-left: 3px solid var(--line);
        }

        details.faq-item[open] {
            border-left-color: var(--primary);
            border-color: var(--line-bright);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.22);
        }

        details.faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 500;
            color: var(--ink-1);
            cursor: pointer;
            list-style: none;
            transition: background .2s ease;
        }

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

        details.faq-item summary:hover {
            background: rgba(56, 212, 255, 0.02);
        }

        details.faq-item summary .icon-plus {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line);
            color: var(--primary);
            font-size: 18px;
            font-weight: 400;
            transition: transform .3s ease, background .2s ease;
            background: rgba(56, 212, 255, 0.06);
        }

        details.faq-item[open] summary .icon-plus {
            transform: rotate(45deg);
            background: rgba(56, 212, 255, 0.12);
        }

        details.faq-item .faq-answer {
            padding: 0 22px 20px 22px;
            font-size: 15px;
            color: var(--ink-2);
            line-height: 1.8;
            border-top: 1px solid rgba(180, 212, 255, 0.08);
            padding-top: 16px;
            margin-top: 4px;
        }

        /* ===== Hero ===== */
        .category-hero {
            padding-top: 108px;
            position: relative;
            background-color: var(--bg0);
            background-image:
                linear-gradient(105deg, rgba(6, 11, 22, .96) 15%, rgba(6, 11, 22, .75) 55%, rgba(6, 11, 22, .25)),
                url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 390px;
            display: flex;
            align-items: center;
        }

        @media (max-width: 768px) {
            .category-hero {
                padding-top: 100px;
                min-height: 340px;
            }
        }

        /* ===== 通用区块 ===== */
        .section-pad {
            padding: 88px 0;
        }

        @media (max-width: 640px) {
            .section-pad {
                padding: 60px 0;
            }
        }

        .card-hover {
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: 0 18px 40px rgba(0, 0, 0, .36), 0 0 0 1px var(--line-bright);
        }

        /* ===== 新标签角标 ===== */
        .badge-new {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            border-radius: 6px;
            background: rgba(255, 102, 130, 0.16);
            color: var(--accent-red);
            font-size: 12px;
            font-weight: 500;
            border: 1px solid rgba(255, 102, 130, 0.25);
        }

        .badge-gold {
            background: rgba(255, 200, 90, 0.16);
            color: var(--accent-gold);
            border-color: rgba(255, 200, 90, 0.25);
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 500;
        }

        /* 列表项箭头 */
        .arrow-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
        }

        .arrow-link:hover .arrow-ic {
            transform: translateX(4px);
        }

        .arrow-ic {
            transition: transform .2s ease;
        }