/* roulang page: index */
:root {
        --bg-root: #0A0F1E;
        --bg-section: #0D1526;
        --bg-card: #101A2E;
        --bg-deep: #070C18;
        --brand: #5FE0D8;
        --brand-bright: #6FF5EC;
        --cyan-deep: #0C3B3F;
        --accent-yellow: #FFD84D;
        --text-main: rgba(235, 240, 250, 0.92);
        --text-secondary: rgba(160, 174, 200, 0.8);
        --text-muted: rgba(120, 132, 156, 0.72);
        --text-placeholder: rgba(95, 108, 134, 0.8);
        --border: rgba(110, 160, 255, 0.12);
        --border-active: rgba(95, 224, 216, 0.4);
        --radius-card: 16px;
        --radius-btn: 10px;
        --radius-pill: 999px;
        --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
        --shadow-hover: 0 18px 40px rgba(0, 15, 30, 0.45);
        --shadow-glow: 0 0 20px rgba(95, 224, 216, 0.25);
        --shadow-yellow: 0 0 24px rgba(255, 216, 77, 0.3);
        --font-sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background: var(--bg-root);
        font-family: var(--font-sans);
        color: var(--text-main);
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
    }

    h1, h2, h3, h4, p, figure {
        margin: 0;
    }

    h1, h2, h3, h4 {
        line-height: 1.25;
        font-weight: 800;
    }

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

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

    button, input {
        font: inherit;
        color: inherit;
    }

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

    :focus-visible {
        outline: 2px solid var(--brand);
        outline-offset: 3px;
        border-radius: 6px;
    }

    ::selection {
        background: rgba(95, 224, 216, 0.24);
        color: #ffffff;
    }

    .mono {
        font-family: var(--font-mono);
    }

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

    .section {
        position: relative;
        padding: 92px 0;
    }

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

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-family: var(--font-mono);
        font-size: 0.76rem;
        letter-spacing: 0.14em;
        text-transform: uppercase;
        color: var(--brand);
    }

    .eyebrow::before {
        content: "";
        width: 22px;
        height: 1px;
        background: var(--brand);
        opacity: 0.7;
    }

    .section-head {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        gap: 24px;
        margin-bottom: 44px;
    }

    .section-title {
        font-size: clamp(1.75rem, 2.8vw, 2.4rem);
        font-weight: 900;
        color: #ffffff;
        letter-spacing: 0.01em;
    }

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

    .section-lead {
        max-width: 680px;
        margin-top: 12px;
        color: var(--text-secondary);
        font-size: 0.98rem;
        line-height: 1.8;
    }

    .text-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--text-secondary);
        font-weight: 600;
        font-size: 0.9rem;
        transition: color 0.2s ease, gap 0.2s ease;
    }

    .text-link:hover {
        color: var(--brand);
        gap: 12px;
    }

    .text-link svg {
        width: 16px;
        height: 16px;
    }

    .btn-primary {
        position: relative;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        border: 1px solid rgba(95, 224, 216, 0.75);
        background: var(--brand);
        color: #062A2A;
        font-weight: 700;
        font-size: 0.9rem;
        line-height: 1;
        padding: 15px 26px;
        border-radius: var(--radius-btn);
        cursor: pointer;
        transition: box-shadow 0.25s ease, background 0.25s ease, transform 0.18s ease;
        box-shadow: 0 0 4px rgba(95, 224, 216, 0.18), 0 0 22px rgba(95, 224, 216, 0.1);
    }

    .btn-primary:hover {
        background: var(--brand-bright);
        box-shadow: 0 0 32px rgba(95, 224, 216, 0.35), 0 0 12px rgba(95, 224, 216, 0.2);
        transform: translateY(-1px);
    }

    .btn-primary:active {
        box-shadow: 0 0 6px rgba(95, 224, 216, 0.3);
        transform: scale(0.98);
    }

    .btn-ghost {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 9px;
        border: 1px solid rgba(110, 160, 255, 0.22);
        background: rgba(255, 255, 255, 0.03);
        color: var(--text-main);
        font-weight: 600;
        font-size: 0.9rem;
        line-height: 1;
        padding: 15px 24px;
        border-radius: var(--radius-btn);
        cursor: pointer;
        transition: border-color 0.22s, background 0.22s, box-shadow 0.22s, color 0.22s;
    }

    .btn-ghost:hover {
        color: var(--brand);
        border-color: var(--border-active);
        background: rgba(95, 224, 216, 0.08);
        box-shadow: 0 0 20px rgba(95, 224, 216, 0.1);
    }

    .btn-ghost:active {
        transform: scale(0.98);
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 60;
        height: 76px;
        display: flex;
        align-items: center;
        background: rgba(9, 13, 28, 0.72);
        border-bottom: 1px solid transparent;
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
    }

    .site-header.is-stuck {
        border-bottom-color: rgba(95, 224, 216, 0.14);
        background: rgba(8, 12, 24, 0.86);
        box-shadow: 0 10px 38px rgba(0, 0, 0, 0.2);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 28px;
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        flex: none;
    }

    .logo-symbol {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, #0d3240, #0f2740 60%, #0b1626);
        border: 1px solid rgba(95, 224, 216, 0.28);
        box-shadow: inset 0 0 18px rgba(95, 224, 216, 0.08);
        color: var(--brand);
        font-weight: 900;
        font-size: 14px;
        letter-spacing: 0.2px;
        font-family: var(--font-mono);
    }

    .logo-word {
        color: #ffffff;
        font-weight: 800;
        font-size: 1.22rem;
        letter-spacing: 0.02em;
    }

    .desktop-nav {
        display: flex;
        align-items: center;
        gap: 34px;
    }

    .nav-link {
        position: relative;
        font-weight: 600;
        font-size: 0.94rem;
        color: var(--text-secondary);
        padding: 8px 0;
        white-space: nowrap;
        transition: color 0.2s;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
        color: var(--text-main);
    }

    .nav-link.active {
        color: var(--brand);
    }

    .nav-link.active::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 2px;
        border-radius: 2px;
        background: var(--brand);
        box-shadow: 0 0 10px rgba(95, 224, 216, 0.5);
    }

    .header-demo-btn {
        display: inline-flex;
        align-items: center;
        gap: 9px;
        padding: 11px 18px;
        border: 1px solid rgba(95, 224, 216, 0.32);
        border-radius: var(--radius-btn);
        background: rgba(95, 224, 216, 0.05);
        color: var(--text-main);
        font-weight: 600;
        font-size: 0.84rem;
        white-space: nowrap;
        transition: background 0.2s, border-color 0.2s, box-shadow 0.2s, color 0.2s;
    }

    .header-demo-btn .dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--brand);
        box-shadow: 0 0 10px rgba(95, 224, 216, 0.75);
    }

    .header-demo-btn:hover {
        background: rgba(95, 224, 216, 0.12);
        border-color: rgba(95, 224, 216, 0.42);
        color: var(--brand);
        box-shadow: 0 0 20px rgba(95, 224, 216, 0.12);
    }

    .hero {
        position: relative;
        display: flex;
        align-items: center;
        min-height: 760px;
        padding: 112px 0 110px;
        overflow: hidden;
    }

    .hero-backdrop {
        position: absolute;
        inset: 0;
        z-index: -2;
        overflow: hidden;
    }

    .hero-backdrop img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.36;
    }

    .hero-backdrop::after {
        content: "";
        position: absolute;
        inset: 0;
        background:
            radial-gradient(circle at 18% 30%, rgba(12, 59, 63, 0.34), transparent 46%),
            radial-gradient(circle at 86% 60%, rgba(95, 224, 216, 0.1), transparent 32%),
            linear-gradient(105deg, rgba(10, 15, 30, 0.96) 0%, rgba(10, 15, 30, 0.84) 44%, rgba(10, 15, 30, 0.62) 100%);
    }

    .hero-corner {
        position: absolute;
        width: 34px;
        height: 34px;
        z-index: 1;
        opacity: 0.44;
        pointer-events: none;
    }

    .hero-corner.tl {
        top: 42px;
        left: 22px;
        border-top: 1px solid rgba(95, 224, 216, 0.35);
        border-left: 1px solid rgba(95, 224, 216, 0.35);
    }

    .hero-corner.br {
        right: 22px;
        bottom: 42px;
        border-right: 1px solid rgba(95, 224, 216, 0.3);
        border-bottom: 1px solid rgba(95, 224, 216, 0.3);
    }

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

    .live-badge {
        display: inline-flex;
        align-items: center;
        gap: 9px;
        padding: 7px 16px;
        border: 1px solid rgba(95, 224, 216, 0.45);
        background: rgba(7, 18, 24, 0.78);
        border-radius: var(--radius-pill);
        font-size: 0.78rem;
        letter-spacing: 0.08em;
        color: #cff9f6;
        box-shadow: 0 0 20px rgba(95, 224, 216, 0.08);
    }

    .pulse-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--brand);
        box-shadow: 0 0 0 0 rgba(95, 224, 216, 0.55);
        animation: pulseAnim 2s infinite;
    }

    @keyframes pulseAnim {
        0% {
            box-shadow: 0 0 0 0 rgba(95, 224, 216, 0.55);
        }
        70% {
            box-shadow: 0 0 0 9px rgba(95, 224, 216, 0);
        }
        100% {
            box-shadow: 0 0 0 0 rgba(95, 224, 216, 0);
        }
    }

    .hero-title {
        margin-top: 22px;
        font-size: clamp(2.2rem, 4.4vw, 3.6rem);
        font-weight: 900;
        line-height: 1.14;
        color: #f4f8ff;
        text-shadow: 0 2px 30px rgba(0, 0, 0, 0.35);
        letter-spacing: -0.015em;
    }

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

    .hero-sub {
        margin-top: 20px;
        max-width: 560px;
        font-size: 1.05rem;
        line-height: 1.9;
        color: var(--text-secondary);
    }

    .hero-meta {
        margin-top: 42px;
        display: grid;
        grid-template-columns: 1fr;
        gap: 14px;
        max-width: 420px;
        padding: 20px 22px;
        border-radius: 16px;
        background: linear-gradient(145deg, rgba(11, 23, 40, 0.82), rgba(8, 15, 28, 0.7));
        border: 1px solid rgba(110, 160, 255, 0.14);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        box-shadow: 0 14px 36px rgba(0, 0, 0, 0.26);
    }

    .hero-meta-item {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 0.9rem;
        color: var(--text-secondary);
    }

    .hero-meta-item svg {
        width: 18px;
        height: 18px;
        color: var(--brand);
        flex: none;
    }

    .hero-meta-item strong {
        color: var(--text-main);
        font-weight: 600;
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 14px;
        margin-top: 28px;
    }

    .countdown-card {
        position: relative;
        z-index: 2;
        padding: 28px 26px 24px;
        border-radius: 20px;
        background: linear-gradient(145deg, rgba(16, 30, 53, 0.9), rgba(9, 18, 33, 0.88));
        border: 1px solid rgba(110, 160, 255, 0.16);
        box-shadow: 0 18px 40px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(95, 224, 216, 0.04);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        overflow: hidden;
    }

    .countdown-card::before {
        content: "";
        position: absolute;
        top: -2px;
        left: 46px;
        width: 46px;
        height: 2px;
        background: var(--brand);
        box-shadow: 0 0 18px rgba(95, 224, 216, 0.8);
    }

    .cd-label {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        font-size: 0.78rem;
        font-family: var(--font-mono);
        letter-spacing: 0.1em;
        color: var(--text-muted);
    }

    .cd-label .cd-live {
        color: var(--brand);
    }

    .cd-title {
        margin-top: 18px;
        font-size: 1.18rem;
        font-weight: 800;
        color: #ffffff;
    }

    .rte-date {
        margin-top: 6px;
        font-size: 0.82rem;
        color: var(--text-muted);
    }

    .cd-grid {
        margin-top: 24px;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }

    .cd-item {
        background: rgba(5, 10, 22, 0.6);
        border: 1px solid rgba(110, 160, 255, 0.12);
        border-radius: 14px;
        padding: 15px 4px 12px;
        text-align: center;
    }

    .cd-item .num {
        display: block;
        font-family: var(--font-mono);
        font-size: clamp(1.55rem, 2.3vw, 2.3rem);
        font-weight: 900;
        line-height: 1.15;
        color: var(--accent-yellow);
        text-shadow: 0 0 24px rgba(255, 216, 77, 0.24);
        letter-spacing: 0.02em;
    }

    .cd-item .lab {
        display: block;
        margin-top: 5px;
        font-size: 0.72rem;
        color: var(--text-muted);
    }

    .cd-sep {
        color: rgba(95, 224, 216, 0.38);
        font-family: var(--font-mono);
        font-size: 1rem;
        text-align: center;
        padding-top: 2px;
    }

    .cd-note {
        margin-top: 22px;
        padding-top: 18px;
        border-top: 1px solid rgba(110, 160, 255, 0.1);
        font-size: 0.82rem;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .cd-note::before {
        content: "●";
        font-size: 8px;
        color: var(--brand);
    }

    .watch-list {
        margin-top: 4px;
    }

    .watch-row {
        display: grid;
        grid-template-columns: 104px 34px 1fr auto;
        align-items: center;
        gap: 18px;
        padding: 26px 20px;
        border-radius: 14px;
        border-bottom: 1px solid rgba(110, 160, 255, 0.1);
        transition: background 0.22s ease, transform 0.22s ease, padding-left 0.22s ease;
    }

    .watch-row:last-child {
        border-bottom-color: transparent;
    }

    .watch-row:hover {
        background: rgba(95, 224, 216, 0.05);
        box-shadow: inset 3px 0 0 rgba(95, 224, 216, 0.55);
        padding-left: 26px;
    }

    .watch-time {
        font-family: var(--font-mono);
        font-size: 0.86rem;
        color: var(--text-muted);
        transition: color 0.2s;
    }

    .watch-row:hover .watch-time {
        color: var(--accent-yellow);
    }

    .watch-num {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        border-radius: 8px;
        background: rgba(95, 224, 216, 0.09);
        border: 1px solid rgba(95, 224, 216, 0.2);
        color: var(--brand);
        font-family: var(--font-mono);
        font-size: 0.82rem;
        font-weight: 700;
    }

    .watch-body-title {
        font-size: 1.08rem;
        font-weight: 700;
        color: #eef4ff;
        margin-bottom: 5px;
    }

    .watch-body-sub {
        font-size: 0.9rem;
        color: var(--text-secondary);
        max-width: 640px;
    }

    .watch-cat {
        padding: 5px 12px;
        border-radius: var(--radius-pill);
        border: 1px solid rgba(95, 224, 216, 0.25);
        font-size: 0.76rem;
        color: var(--brand);
        background: rgba(95, 224, 216, 0.04);
        white-space: nowrap;
    }

    .stat-band {
        position: relative;
        border-radius: 18px;
        background: linear-gradient(135deg, #0d1a2f, #0b1524);
        border: 1px solid rgba(110, 160, 255, 0.12);
        padding: 40px 36px 30px;
        overflow: hidden;
    }

    .stat-band::after {
        content: "";
        position: absolute;
        width: 200px;
        height: 200px;
        right: -50px;
        top: -80px;
        background: radial-gradient(circle, rgba(95, 224, 216, 0.14), transparent 70%);
        pointer-events: none;
    }

    .stat-title {
        font-size: 0.84rem;
        letter-spacing: 0.12em;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 30px;
    }

    .stat-title::before {
        content: "";
        width: 22px;
        height: 1px;
        background: var(--brand);
    }

    .stat-grid {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr 1fr;
        gap: 20px;
    }

    .stat-item {
        padding-left: 16px;
        border-left: 1px solid rgba(95, 224, 216, 0.24);
    }

    .stat-num {
        font-size: clamp(1.85rem, 3vw, 2.8rem);
        font-weight: 900;
        font-family: var(--font-mono);
        color: #ffffff;
        line-height: 1.1;
        letter-spacing: -0.01em;
    }

    .stat-num i {
        color: var(--accent-yellow);
        font-style: normal;
    }

    .stat-label {
        margin-top: 8px;
        font-size: 0.86rem;
        color: var(--text-secondary);
    }

    .stat-note {
        margin-top: 28px;
        font-size: 0.78rem;
        color: rgba(120, 132, 156, 0.6);
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .subscribe-card {
        position: relative;
        display: grid;
        grid-template-columns: 1.35fr 1fr;
        align-items: center;
        gap: 44px;
        padding: 48px 48px 44px;
        border-radius: 20px;
        border: 1px solid rgba(95, 224, 216, 0.2);
        background: linear-gradient(140deg, rgba(15, 29, 50, 0.82), rgba(9, 17, 34, 0.88));
        box-shadow: 0 22px 50px rgba(0, 0, 0, 0.35), 0 0 40px rgba(95, 224, 216, 0.05);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding-bottom: 24px;
    }

    .subscribe-card::before {
        content: "";
        position: absolute;
        left: 30px;
        right: 30px;
        bottom: 0;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(95, 224, 216, 0.5), transparent);
    }

    .subscribe-title {
        font-size: clamp(1.6rem, 2.4vw, 2.1rem);
        font-weight: 900;
        color: #ffffff;
        line-height: 1.3;
    }

    .subscribe-copy p {
        margin-top: 14px;
        font-size: 0.96rem;
        line-height: 1.85;
        color: var(--text-secondary);
        max-width: 610px;
    }

    .subscribe-form {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .form-row {
        display: flex;
        gap: 10px;
    }

    .form-input {
        width: 100%;
        min-width: 0;
        background: #141f37;
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 10px;
        padding: 14px 16px;
        color: var(--text-main);
        font-size: 0.92rem;
        transition: border-color 0.2s, box-shadow 0.2s;
    }

    .form-input::placeholder {
        color: rgba(95, 108, 134, 0.8);
    }

    .form-input:focus {
        outline: none;
        border-color: rgba(95, 224, 216, 0.65);
        box-shadow: 0 0 0 3px rgba(95, 224, 216, 0.12);
    }

    .subscribe-btn {
        whitespace: nowrap;
        flex: none;
    }

    .form-note {
        font-size: 0.78rem;
        color: rgba(120, 132, 156, 0.72);
        line-height: 1.5;
    }

    .form-feedback {
        min-height: 20px;
        font-size: 0.84rem;
        color: var(--brand);
    }

    .has-done .subscribe-btn {
        color: #062a2a;
        background: var(--accent-yellow);
        border-color: rgba(255, 216, 77, 0.8);
        box-shadow: 0 0 24px rgba(255, 216, 77, 0.22);
    }

    .replay-card-main {
        position: relative;
        border-radius: 18px;
        overflow: hidden;
        min-height: 340px;
        display: flex;
        align-items: flex-end;
        background: #0d1424;
        background-image: url("/assets/images/coverpic/cover-1.png");
        background-size: cover;
        background-position: center;
        border: 1px solid rgba(110, 160, 255, 0.14);
        box-shadow: var(--shadow-card);
        transition: transform 0.26s ease, box-shadow 0.26s ease;
    }

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

    .replay-card-main::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(10, 15, 30, 0.1) 0%, rgba(10, 15, 30, 0.76) 70%, rgba(10, 15, 30, 0.95) 100%);
    }

    .replay-main-content {
        position: relative;
        padding: 32px 30px 26px;
        width: 100%;
    }

    .replay-tag {
        display: inline-flex;
        align-items: center;
        gap: 7px;
        font-family: var(--font-mono);
        font-size: 0.74rem;
        padding: 5px 12px;
        border: 1px solid rgba(95, 224, 216, 0.3);
        background: rgba(10, 15, 30, 0.56);
        color: var(--brand);
        border-radius: 999px;
        letter-spacing: 0.06em;
    }

    .replay-main-title {
        margin-top: 12px;
        font-size: 1.5rem;
        font-weight: 900;
        color: #ffffff;
        max-width: 580px;
    }

    .replay-main-meta {
        margin-top: 8px;
        font-size: 0.86rem;
        color: var(--text-secondary);
    }

    .replay-main-action {
        margin-top: 18px;
    }

    .replay-play-btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 0.88rem;
        font-weight: 700;
        color: #062A2A;
        background: var(--brand);
        padding: 11px 20px;
        border-radius: 10px;
        transition: box-shadow 0.2s, background 0.2s;
    }

    .replay-play-btn:hover {
        background: var(--brand-bright);
        box-shadow: 0 0 26px rgba(95, 224, 216, 0.32);
    }

    .replay-card-sm {
        display: grid;
        grid-template-columns: 180px 1fr 32px;
        align-items: center;
        gap: 20px;
        padding: 14px;
        border-radius: 16px;
        background: var(--bg-card);
        border: 1px solid rgba(110, 160, 255, 0.11);
        transition: border-color 0.2s, background 0.2s, transform 0.2s;
    }

    .replay-card-sm:hover {
        transform: translateY(-2px);
        background: #14203a;
        border-color: rgba(95, 224, 216, 0.22);
    }

    .sm-thumb {
        height: 96px;
        border-radius: 12px;
        background-size: cover;
        background-position: center;
        overflow: hidden;
    }

    .sm-title {
        font-size: 1.02rem;
        font-weight: 800;
        color: #ffffff;
        line-height: 1.4;
    }

    .sm-meta {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-top: 9px;
        font-size: 0.8rem;
        color: var(--text-muted);
    }

    .sm-meta .dot {
        width: 3px;
        height: 3px;
        border-radius: 50%;
        background: var(--brand);
        opacity: 0.7;
    }

    .sm-arrow {
        width: 32px;
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 1px solid rgba(110, 160, 255, 0.16);
        border-radius: 50%;
        color: var(--text-secondary);
        transition: color 0.2s, border-color 0.2s, transform 0.2s;
    }

    .replay-card-sm:hover .sm-arrow {
        color: var(--brand);
        border-color: rgba(95, 224, 216, 0.35);
    }

    .news-stack {
        border-radius: 18px;
        border: 1px solid rgba(110, 160, 255, 0.1);
        background: rgba(13, 21, 38, 0.55);
        overflow: hidden;
    }

    .news-row {
        position: relative;
        display: flex;
        align-items: flex-start;
        gap: 22px;
        padding: 24px 28px;
        border-bottom: 1px solid rgba(110, 160, 255, 0.08);
        transition: background 0.2s ease, box-shadow 0.2s ease;
    }

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

    .news-row:hover {
        background: rgba(95, 224, 216, 0.05);
        box-shadow: inset 3px 0 0 rgba(95, 224, 216, 0.6);
    }

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

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

    .news-cat {
        display: inline-flex;
        padding: 3px 11px;
        border-radius: 999px;
        border: 1px solid rgba(95, 224, 216, 0.22);
        background: rgba(95, 224, 216, 0.05);
        font-size: 0.76rem;
        color: var(--brand);
        white-space: nowrap;
    }

    .news-title {
        font-size: 1.02rem;
        font-weight: 700;
        color: #eef4ff;
        transition: color 0.2s;
        line-height: 1.5;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .news-row:hover .news-title {
        color: var(--brand);
    }

    .news-summary {
        margin-top: 7px;
        color: var(--text-secondary);
        font-size: 0.9rem;
        line-height: 1.6;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .news-time {
        flex: none;
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.78rem;
        color: var(--text-muted);
        font-family: var(--font-mono);
        padding-top: 4px;
    }

    .news-empty {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        padding: 62px 24px;
        color: var(--text-muted);
        font-size: 0.9rem;
    }

    .empty-icon {
        width: 34px;
        height: 34px;
        border-radius: 10px;
        border: 1px solid rgba(110, 160, 255, 0.2);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--brand);
        font-size: 1rem;
    }

    .faq-item {
        border: 1px solid rgba(110, 160, 255, 0.12);
        border-radius: 14px;
        background: rgba(13, 21, 38, 0.7);
        margin-bottom: 12px;
        overflow: hidden;
        transition: border-color 0.2s, background 0.2s;
    }

    .faq-item:hover {
        border-color: rgba(95, 224, 216, 0.2);
        background: rgba(15, 26, 46, 0.74);
    }

    .faq-item summary {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        list-style: none;
        cursor: pointer;
        min-height: 44px;
        padding: 19px 24px;
        font-weight: 600;
        color: var(--text-main);
        user-select: none;
    }

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

    .faq-icon {
        position: relative;
        flex: none;
        width: 22px;
        height: 22px;
        border-radius: 6px;
        border: 1px solid rgba(95, 224, 216, 0.28);
        background: rgba(95, 224, 216, 0.06);
    }

    .faq-icon::before,
    .faq-icon::after {
        content: "";
        position: absolute;
        left: 50%;
        top: 50%;
        width: 10px;
        height: 1.6px;
        background: var(--brand);
        transform: translate(-50%, -50%);
        transition: transform 0.22s;
    }

    .faq-icon::after {
        transform: translate(-50%, -50%) rotate(90deg);
    }

    .faq-item details[open] .faq-icon::after {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    .faq-body {
        padding: 0 24px 20px;
        color: var(--text-secondary);
        font-size: 0.92rem;
        line-height: 1.9;
        max-width: 900px;
        animation: fadeSlide 0.24s ease;
    }

    @keyframes fadeSlide {
        from {
            opacity: 0;
            transform: translateY(-4px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .cta-strip {
        position: relative;
        padding: 56px 0 48px;
        text-align: center;
        background: linear-gradient(120deg, rgba(10, 15, 30, 0.9), rgba(10, 15, 30, 0.9)), url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
        border-top: 1px solid rgba(110, 160, 255, 0.1);
        border-bottom: 1px solid rgba(110, 160, 255, 0.1);
    }

    .cta-strip::before {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at center, rgba(95, 224, 216, 0.08), transparent 70%);
        pointer-events: none;
    }

    .cta-strip h2 {
        font-size: clamp(1.65rem, 2.8vw, 2.4rem);
        color: #ffffff;
        font-weight: 900;
        line-height: 1.3;
    }

    .cta-strip p {
        margin-top: 12px;
        color: var(--text-secondary);
        max-width: 640px;
        margin-left: auto;
        margin-right: auto;
        font-size: 0.98rem;
        line-height: 1.8;
    }

    .cta-strip .btn-group {
        margin-top: 26px;
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 14px;
    }

    .site-footer {
        background: #081020;
        border-top: 1px solid rgba(110, 160, 255, 0.12);
        padding-top: 72px;
        padding-bottom: 36px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 0.8fr 1fr;
        gap: 52px;
        padding-bottom: 48px;
        border-bottom: 1px solid rgba(110, 160, 255, 0.08);
    }

    .footer-brand .logo-word {
        font-size: 1.3rem;
    }

    .footer-desc {
        margin-top: 18px;
        max-width: 360px;
        font-size: 0.9rem;
        line-height: 1.9;
        color: var(--text-secondary);
    }

    .footer-col-title {
        font-size: 0.9rem;
        font-weight: 800;
        color: #ffffff;
        letter-spacing: 0.04em;
        margin-bottom: 18px;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 11px;
    }

    .footer-links a {
        color: var(--text-secondary);
        font-size: 0.9rem;
        transition: color 0.2s, padding-left 0.2s;
    }

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

    .footer-contact {
        display: flex;
        flex-direction: column;
        gap: 12px;
        color: var(--text-secondary);
        font-size: 0.9rem;
    }

    .footer-contact span {
        display: flex;
        align-items: center;
        gap: 9px;
    }

    .footer-contact svg {
        width: 17px;
        height: 17px;
        color: var(--brand);
        flex: none;
    }

    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        padding-top: 28px;
        font-size: 0.78rem;
        color: rgba(120, 132, 156, 0.7);
    }

    .mobile-tabbar {
        display: none;
    }

    @media (max-width: 767px) {
        .wrap {
            padding-left: 16px;
            padding-right: 16px;
        }

        .section {
            padding: 62px 0;
        }

        .section-head {
            flex-direction: column;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 28px;
        }

        .site-header {
            height: 64px;
        }

        .logo-symbol {
            width: 34px;
            height: 34px;
            font-size: 12px;
        }

        .logo-word {
            font-size: 1.1rem;
        }

        .desktop-nav {
            display: none;
        }

        .header-demo-btn .btn-label {
            display: none;
        }

        .header-demo-btn {
            padding: 9px 12px;
        }

        .hero {
            padding: 72px 0 64px;
            min-height: auto;
        }

        .hero-title {
            font-size: 2rem;
            line-height: 1.22;
        }

        .hero-sub {
            font-size: 0.94rem;
        }

        .hero-meta {
            max-width: 100%;
            padding: 16px 16px;
        }

        .cd-grid {
            gap: 6px;
        }

        .cd-item {
            padding: 12px 2px 9px;
            border-radius: 12px;
        }

        .cd-item .num {
            font-size: 1.35rem;
        }

        .countdown-card {
            padding: 20px 18px;
            margin-top: 34px;
        }

        .watch-row {
            grid-template-columns: 74px 28px 1fr;
            gap: 12px;
            padding: 20px 12px;
        }

        .watch-cat {
            display: none;
        }

        .stat-grid {
            grid-template-columns: 1fr 1fr;
            gap: 28px 16px;
        }

        .stat-band {
            padding: 28px 20px 22px;
        }

        .subscribe-card {
            grid-template-columns: 1fr;
            gap: 30px;
            padding: 32px 22px 28px;
        }

        .form-row {
            flex-direction: column;
        }

        .form-row .btn-primary {
            width: 100%;
        }

        .news-row {
            flex-direction: column;
            padding: 18px 18px;
            gap: 10px;
        }

        .news-title {
            white-space: normal;
            overflow: visible;
        }

        .news-time {
            align-self: flex-start;
        }

        .faq-item summary {
            padding: 16px 16px;
            font-size: 0.96rem;
        }

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

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 40px;
        }

        .mobile-tabbar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 80;
            display: flex;
            height: calc(64px + env(safe-area-inset-bottom));
            padding-bottom: env(safe-area-inset-bottom);
            background: #0a0e1b;
            border-top: 1px solid rgba(95, 224, 216, 0.2);
            box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.4);
        }

        body {
            padding-bottom: 72px;
        }
    }

    @media (min-width: 768px) {
        .mobile-tabbar {
            display: none !important;
        }
    }

    @media (max-width: 639px) {
        .hero-actions .btn-primary,
        .hero-actions .btn-ghost {
            width: 100%;
            padding: 15px 18px;
        }

        .replay-card-sm {
            grid-template-columns: 118px 1fr 26px;
            padding: 10px;
        }

        .sm-title {
            font-size: 0.92rem;
        }

        .cd-item .num {
            font-size: clamp(1.2rem, 8vw, 1.7rem);
        }

        .cta-strip .btn-group .btn-primary,
        .cta-strip .btn-group .btn-ghost {
            width: 100%;
        }
    }

    .grid-surface {
        position: relative;
        background-image:
            linear-gradient(rgba(110, 160, 255, 0.03) 1px, transparent 1px),
            linear-gradient(90deg, rgba(110, 160, 255, 0.03) 1px, transparent 1px);
        background-size: 38px 38px;
    }

/* roulang page: category1 */
:root {
        --bg-root: #0A0F1E;
        --bg-alt: #101A2E;
        --bg-deep: #0D1526;
        --bg-glass: rgba(16, 26, 46, 0.72);
        --cyan: #5FE0D8;
        --cyan-soft: rgba(95, 224, 216, 0.35);
        --cyan-line: rgba(95, 224, 216, 0.26);
        --yellow: #FFD84D;
        --yellow-glow: rgba(255, 216, 77, 0.28);
        --purple: #8B80F9;
        --text-hi: rgba(235, 240, 250, 0.92);
        --text-mid: rgba(160, 174, 200, 0.8);
        --text-low: rgba(120, 132, 156, 0.72);
        --text-placeholder: rgba(95, 108, 134, 0.8);
        --disabled: rgba(90, 100, 120, 0.45);
        --line: rgba(110, 160, 255, 0.12);
        --line-bright: rgba(95, 224, 216, 0.4);
        --radius-card: 16px;
        --radius-btn: 10px;
        --shadow-low: 0 10px 30px rgba(0, 0, 0, 0.35);
        --shadow-mid: 0 18px 40px rgba(0, 15, 30, 0.45);
        --shadow-cyan: 0 0 20px rgba(95, 224, 216, 0.25);
        --container: 1280px;
        --header-h: 76px;
    }

    * {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        margin: 0;
        background: var(--bg-root);
        color: var(--text-hi);
        font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
        padding-bottom: 64px;
    }
    body.no-scroll {
        overflow: hidden;
    }
    a {
        color: inherit;
        text-decoration: none;
    }
    img {
        max-width: 100%;
        display: block;
    }
    button,
    input {
        font-family: inherit;
    }
    ::selection {
        background: rgba(95, 224, 216, 0.25);
        color: #fff;
    }
    .wrap {
        max-width: var(--container);
        margin-left: auto;
        margin-right: auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    .section {
        padding: 96px 0;
    }
    .section-tight {
        padding: 72px 0;
    }
    .section-center {
        text-align: center;
    }
    .section-head {
        max-width: 740px;
        margin-bottom: 48px;
    }
    .section-center .section-head {
        margin-left: auto;
        margin-right: auto;
    }
    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 0.78rem;
        font-weight: 600;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--cyan);
        margin-bottom: 16px;
        background: rgba(95, 224, 216, 0.08);
        border: 1px solid rgba(95, 224, 216, 0.16);
        border-radius: 999px;
        padding: 5px 14px 5px 12px;
    }
    .eyebrow::before {
        content: "";
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--cyan);
        box-shadow: 0 0 10px rgba(95, 224, 216, 0.9);
    }
    .section-title {
        font-size: 2rem;
        line-height: 1.3;
        font-weight: 800;
        letter-spacing: -0.02em;
        margin: 0 0 16px;
    }
    .section-sub {
        font-size: 1rem;
        color: var(--text-mid);
        line-height: 1.85;
        margin: 0;
    }

    h1,
    h2,
    h3,
    h4,
    p {
        margin-top: 0;
    }

    /* Header */
    .site-header {
        position: sticky;
        top: 0;
        height: var(--header-h);
        z-index: 60;
        background: rgba(10, 15, 30, 0.72);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid transparent;
        transition: background 0.3s, border-color 0.3s;
    }
    .site-header.scrolled {
        background: rgba(7, 11, 23, 0.9);
        border-bottom-color: rgba(95, 224, 216, 0.14);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: var(--header-h);
        gap: 18px;
    }
    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        line-height: 1;
        flex-shrink: 0;
    }
    .logo-symbol {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
        background: var(--cyan);
        color: #062A2A;
        font-weight: 900;
        font-size: 1rem;
        letter-spacing: -0.01em;
        border-radius: 8px;
        box-shadow: 0 0 16px rgba(95, 224, 216, 0.35);
        transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .brand-logo:hover .logo-symbol {
        transform: scale(1.04);
        box-shadow: 0 0 22px rgba(95, 224, 216, 0.5);
    }
    .logo-word {
        font-weight: 800;
        font-size: 1.08rem;
        letter-spacing: 0.02em;
        color: var(--text-hi);
    }
    .desktop-nav {
        display: flex;
        align-items: center;
        gap: 30px;
    }
    .nav-link {
        position: relative;
        display: inline-block;
        font-size: 0.92rem;
        font-weight: 600;
        color: var(--text-mid);
        padding: 8px 2px;
        transition: color 0.25s;
        white-space: nowrap;
    }
    .nav-link:hover {
        color: #ffffff;
    }
    .nav-link.active {
        color: var(--cyan);
    }
    .nav-link.active::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: -2px;
        width: 22px;
        height: 3px;
        border-radius: 999px;
        background: var(--cyan);
        transform: translateX(-50%);
        box-shadow: 0 0 10px rgba(95, 224, 216, 0.8);
    }
    .header-demo-btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 0.88rem;
        font-weight: 600;
        color: var(--cyan);
        line-height: 1;
        padding: 10px 14px;
        border-radius: 10px;
        border: 1px solid rgba(95, 224, 216, 0.3);
        background: rgba(95, 224, 216, 0.05);
        white-space: nowrap;
        transition: background 0.25s, border-color 0.25s, box-shadow 0.25s;
    }
    .header-demo-btn .dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--yellow);
        box-shadow: 0 0 12px rgba(255, 216, 77, 0.8);
    }
    .header-demo-btn:hover {
        background: rgba(95, 224, 216, 0.12);
        border-color: rgba(95, 224, 216, 0.6);
        box-shadow: 0 0 16px rgba(95, 224, 216, 0.2);
    }
    .header-demo-btn:focus-visible,
    .nav-link:focus-visible,
    .brand-logo:focus-visible {
        outline: 2px solid var(--cyan);
        outline-offset: 4px;
        border-radius: 4px;
    }

    /* Bottom Tab */
    .bottom-tab {
        display: none;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 64px;
        background: #0A101F;
        border-top: 1px solid rgba(95, 224, 216, 0.26);
        box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.3);
        z-index: 80;
        padding: 4px 12px calc(4px + env(safe-area-inset-bottom));
    }
    .tab-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        height: 100%;
        gap: 4px;
    }
    .tab-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3px;
        color: #7C879E;
        font-size: 11px;
        font-weight: 500;
        line-height: 1;
        border-radius: 10px;
        transition: color 0.2s, background 0.2s, transform 0.12s;
    }
    .tab-item svg {
        width: 22px;
        height: 22px;
        fill: none;
        stroke: currentColor;
        stroke-width: 1.7;
    }
    .tab-item:active {
        transform: scale(0.97);
    }
    .tab-item.active {
        color: var(--cyan);
        stroke: var(--cyan);
        filter: drop-shadow(0 0 7px rgba(95, 224, 216, 0.65));
    }

    /* Buttons */
    .btn-main {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        background: var(--cyan);
        color: #052A2A;
        border: 1px solid #8CEBE4;
        font-size: 0.92rem;
        font-weight: 700;
        line-height: 1;
        padding: 13px 22px;
        border-radius: var(--radius-btn);
        box-shadow: 0 0 18px rgba(95, 224, 216, 0.3);
        transition: transform 0.2s, box-shadow 0.25s, background 0.2s;
        cursor: pointer;
    }
    .btn-main:hover {
        box-shadow: 0 0 32px rgba(95, 224, 216, 0.5);
        transform: translateY(-2px);
    }
    .btn-main:active {
        box-shadow: 0 0 8px rgba(95, 224, 216, 0.24);
        transform: translateY(0);
    }
    .btn-main:focus-visible,
    .btn-ghost:focus-visible,
    .subscribe-trigger:focus-visible {
        outline: 2px solid var(--yellow);
        outline-offset: 3px;
    }
    .btn-ghost {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        border: 1px solid rgba(160, 174, 200, 0.35);
        background: rgba(160, 174, 200, 0.04);
        color: var(--text-hi);
        font-size: 0.92rem;
        font-weight: 600;
        line-height: 1;
        padding: 13px 22px;
        border-radius: var(--radius-btn);
        transition: border-color 0.25s, background 0.25s, transform 0.2s;
    }
    .btn-ghost:hover {
        border-color: var(--cyan);
        background: rgba(95, 224, 216, 0.08);
        transform: translateY(-2px);
    }

    /* Hero */
    .cat-hero {
        position: relative;
        padding: 108px 0 98px;
        background-image: linear-gradient(90deg, rgba(6, 10, 22, 0.92) 0%, rgba(10, 15, 30, 0.74) 56%, rgba(16, 26, 46, 0.62) 100%), url("/assets/images/backpic/back-2.webp");
        background-position: center;
        background-size: cover;
        border-bottom: 1px solid rgba(95, 224, 216, 0.1);
        overflow: hidden;
    }
    .cat-hero::after {
        content: "";
        position: absolute;
        inset: auto -5% -60% 40%;
        height: 420px;
        background: radial-gradient(circle, rgba(95, 224, 216, 0.08) 0%, transparent 70%);
        pointer-events: none;
    }
    .crumb {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 0.8rem;
        color: var(--text-low);
        margin-bottom: 30px;
        align-items: center;
    }
    .crumb a {
        transition: color 0.2s;
    }
    .crumb a:hover {
        color: var(--cyan);
    }
    .crumb i {
        font-style: normal;
        color: rgba(255, 255, 255, 0.22);
    }
    .hero-kicker {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        color: var(--cyan);
        font-size: 0.82rem;
        font-weight: 600;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        border: 1px solid rgba(95, 224, 216, 0.25);
        background: rgba(10, 15, 30, 0.5);
        padding: 7px 15px;
        border-radius: 999px;
        margin-bottom: 22px;
        backdrop-filter: blur(6px);
    }
    .hero-kicker .pulse {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--cyan);
        box-shadow: 0 0 0 4px rgba(95, 224, 216, 0.14), 0 0 10px var(--cyan);
        animation: pulse 1.8s ease-in-out infinite;
    }
    @keyframes pulse {
        0%, 100% { box-shadow: 0 0 0 3px rgba(95, 224, 216, 0.16), 0 0 8px var(--cyan); }
        50% { box-shadow: 0 0 0 7px rgba(95, 224, 216, 0.02), 0 0 16px var(--cyan); }
    }
    .cat-hero-content {
        position: relative;
        z-index: 2;
        max-width: 820px;
    }
    .cat-hero h1 {
        font-size: clamp(2.35rem, 5vw, 3.6rem);
        line-height: 1.18;
        font-weight: 900;
        letter-spacing: -0.03em;
        margin: 0 0 20px;
        color: #ffffff;
    }
    .cat-hero h1 span {
        color: var(--cyan);
    }
    .cat-hero-lead {
        font-size: 1.05rem;
        color: var(--text-mid);
        max-width: 720px;
        line-height: 1.9;
        margin: 0 0 32px;
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
    }

    .hero-meta-strip {
        margin-top: 44px;
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        position: relative;
        z-index: 2;
    }
    .hero-meta-chip {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 0.85rem;
        color: var(--text-mid);
        background: rgba(10, 15, 30, 0.66);
        border: 1px solid var(--line);
        padding: 9px 15px;
        border-radius: 999px;
        backdrop-filter: blur(6px);
    }
    .hero-meta-chip svg {
        width: 15px;
        height: 15px;
        color: var(--cyan);
        stroke-width: 1.8;
        fill: none;
    }

    /* Cards / Panels */
    .panel {
        background: var(--bg-alt);
        border: 1px solid var(--line);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-low);
    }
    .panel-soft {
        background: rgba(16, 26, 46, 0.72);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(110, 160, 255, 0.1);
    }

    .duo-section {
        padding: 76px 0 64px;
    }
    .duo-grid {
        display: grid;
        grid-template-columns: 3fr 2fr;
        gap: 28px;
        align-items: stretch;
    }
    .cover-story {
        overflow: hidden;
        display: flex;
        flex-direction: column;
    }
    .cover-story-picture {
        position: relative;
        overflow: hidden;
        min-height: 250px;
        background: #0D1526;
    }
    .cover-story-picture img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        min-height: 250px;
        transition: transform 0.5s ease;
    }
    .cover-story:hover .cover-story-picture img {
        transform: scale(1.03);
    }
    .cover-story-picture::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(10, 15, 30, 0) 60%, rgba(10, 15, 30, 0.72) 100%);
    }
    .cover-tag {
        position: absolute;
        left: 18px;
        top: 16px;
        z-index: 2;
        background: rgba(6, 10, 22, 0.72);
        color: var(--cyan);
        border: 1px solid rgba(95, 224, 216, 0.3);
        font-size: 0.8rem;
        padding: 6px 11px;
        border-radius: 999px;
        backdrop-filter: blur(6px);
        font-weight: 600;
    }
    .cover-story-body {
        padding: 28px;
        flex: 1;
    }
    .cover-story-body h2 {
        font-size: 1.55rem;
        line-height: 1.35;
        font-weight: 800;
        margin-bottom: 14px;
    }
    .cover-story-body p {
        color: var(--text-mid);
        line-height: 1.9;
        margin-bottom: 18px;
    }
    .cover-list {
        margin: 16px 0 0;
        padding: 0;
        list-style: none;
        display: grid;
        gap: 12px;
    }
    .cover-list li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 0.92rem;
        color: var(--text-mid);
        line-height: 1.7;
    }
    .cover-list li svg {
        width: 18px;
        height: 18px;
        color: var(--cyan);
        fill: none;
        stroke: currentColor;
        stroke-width: 1.8;
        flex-shrink: 0;
        margin-top: 4px;
    }
    .aside-stack {
        display: grid;
        gap: 20px;
        align-content: start;
    }
    .aside-panel {
        background: var(--bg-deep);
        border: 1px solid var(--line);
        border-radius: var(--radius-card);
        padding: 26px;
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
    }
    .aside-panel .panel-kicker {
        color: var(--cyan);
        font-size: 0.8rem;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        margin-bottom: 14px;
    }
    .aside-panel h3 {
        font-size: 1.15rem;
        font-weight: 800;
        margin-bottom: 12px;
        line-height: 1.5;
    }
    .aside-panel p {
        color: var(--text-mid);
        font-size: 0.92rem;
        line-height: 1.85;
        margin-bottom: 16px;
    }
    .mini-hr {
        height: 1px;
        border: 0;
        background: linear-gradient(90deg, transparent, rgba(95, 224, 216, 0.28), transparent);
        margin: 18px 0;
    }

    /* Feature grid */
    .features-section {
        background: linear-gradient(180deg, #0B1224 0%, #0A0F1E 100%);
        border-top: 1px solid rgba(110, 160, 255, 0.06);
        padding: 88px 0;
    }
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .feature-card {
        background: #0E1828;
        border: 1px solid var(--line);
        border-radius: var(--radius-card);
        padding: 26px 22px;
        transition: transform 0.25s ease, border-color 0.25s, background 0.25s;
        position: relative;
    }
    .feature-card:hover {
        transform: translateY(-4px);
        border-color: rgba(95, 224, 216, 0.34);
        background: #111C30;
        box-shadow: var(--shadow-cyan);
    }
    .feature-icon {
        width: 42px;
        height: 42px;
        border-radius: 10px;
        background: rgba(95, 224, 216, 0.12);
        border: 1px solid rgba(95, 224, 216, 0.18);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--cyan);
        margin-bottom: 22px;
    }
    .feature-icon svg {
        width: 21px;
        height: 21px;
        fill: none;
        stroke: currentColor;
        stroke-width: 1.8;
    }
    .feature-card h3 {
        font-size: 1.02rem;
        font-weight: 700;
        margin-bottom: 10px;
        line-height: 1.5;
    }
    .feature-card p {
        font-size: 0.88rem;
        color: var(--text-mid);
        line-height: 1.8;
        margin-bottom: 0;
    }

    /* Process */
    .process-sec {
        padding: 88px 0;
    }
    .process-steps {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        counter-reset: step;
    }
    .process-step {
        position: relative;
        padding: 26px 20px;
        border-top: 2px solid transparent;
        background: rgba(13, 21, 38, 0.5);
        border-radius: 0 0 12px 12px;
        transition: border-color 0.25s, transform 0.25s;
    }
    .process-step::before {
        counter-increment: step;
        content: "0" counter(step);
        display: inline-block;
        font-family: "JetBrains Mono", "Roboto Mono", "SF Mono", monospace;
        font-size: 0.84rem;
        font-weight: 700;
        color: var(--cyan);
        letter-spacing: 0.06em;
        margin-bottom: 12px;
    }
    .process-step:hover {
        transform: translateY(-3px);
        border-top-color: var(--cyan);
    }
    .process-step h3 {
        font-size: 1rem;
        font-weight: 700;
        margin-bottom: 8px;
        color: var(--text-hi);
    }
    .process-step p {
        color: var(--text-mid);
        font-size: 0.88rem;
        line-height: 1.8;
        margin-bottom: 0;
    }

    /* Scenario cards */
    .scenario-section {
        background: var(--bg-deep);
        border-top: 1px solid rgba(210, 160, 255, 0.08);
        padding: 88px 0;
    }
    .scenario-wrap {
        display: grid;
        gap: 18px;
    }
    .scenario-card {
        display: grid;
        grid-template-columns: 260px 1fr;
        gap: 26px;
        background: #101A2E;
        border: 1px solid var(--line);
        border-radius: var(--radius-card);
        overflow: hidden;
        transition: border-color 0.25s, background 0.25s, transform 0.25s;
    }
    .scenario-card:hover {
        border-color: rgba(95, 224, 216, 0.3);
        background: #101D33;
        transform: translateY(-3px);
    }
    .scenario-thumb {
        min-height: 190px;
        background-size: cover;
        background-position: center;
        background-color: #0D1526;
    }
    .scenario-card-body {
        padding: 26px 24px 26px 0;
    }
    .scenario-card-body h3 {
        font-size: 1.15rem;
        font-weight: 800;
        margin-bottom: 8px;
    }
    .scenario-card-body p {
        color: var(--text-mid);
        font-size: 0.92rem;
        line-height: 1.85;
        max-width: 720px;
    }

    /* FAQ */
    .faq-section {
        background: linear-gradient(180deg, #0A0F1E 0%, #0D1526 100%);
        padding: 88px 0;
    }
    .faq-list {
        max-width: 860px;
        margin: 0 auto;
        display: grid;
        gap: 14px;
    }
    .faq-item {
        background: rgba(16, 26, 46, 0.5);
        border: 1px solid var(--line);
        border-radius: 14px;
        transition: border-color 0.25s, background 0.25s;
        overflow: hidden;
    }
    .faq-item[open] {
        border-color: rgba(95, 224, 216, 0.28);
        background: rgba(16, 26, 46, 0.86);
    }
    .faq-item summary {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
        list-style: none;
        cursor: pointer;
        padding: 19px 22px;
        font-size: 0.98rem;
        font-weight: 600;
        line-height: 1.6;
        min-height: 56px;
        color: var(--text-hi);
        transition: color 0.2s;
    }
    .faq-item summary::-webkit-details-marker {
        display: none;
    }
    .faq-item summary:hover {
        color: var(--cyan);
    }
    .faq-icon {
        position: relative;
        width: 24px;
        height: 24px;
        flex-shrink: 0;
        border-radius: 50%;
        border: 1px solid rgba(95, 224, 216, 0.32);
        transition: background 0.25s, border-color 0.25s;
    }
    .faq-icon::before,
    .faq-icon::after {
        content: "";
        position: absolute;
        background: var(--cyan);
        border-radius: 3px;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        transition: opacity 0.2s, transform 0.2s;
    }
    .faq-icon::before {
        width: 10px;
        height: 1.6px;
    }
    .faq-icon::after {
        width: 1.6px;
        height: 10px;
    }
    .faq-item[open] .faq-icon::after {
        opacity: 0;
        transform: translate(-50%, -50%) rotate(45deg);
    }
    .faq-item .faq-answer {
        padding: 0 22px 20px;
        color: var(--text-mid);
        line-height: 1.85;
        font-size: 0.92rem;
    }

    /* CTA */
    .cta-section {
        padding: 80px 0;
    }
    .cta-panel {
        position: relative;
        overflow: hidden;
        background: linear-gradient(120deg, rgba(16, 26, 46, 0.88), rgba(10, 15, 30, 0.9));
        border: 1px solid rgba(95, 224, 216, 0.24);
        border-radius: 20px;
        padding: 46px 46px 42px;
        box-shadow: var(--shadow-mid), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    }
    .cta-panel::before {
        content: "";
        position: absolute;
        width: 420px;
        height: 420px;
        right: -140px;
        top: -200px;
        background: radial-gradient(circle, rgba(95, 224, 216, 0.14) 0%, transparent 70%);
        pointer-events: none;
    }
    .cta-panel::after {
        content: "";
        position: absolute;
        width: 280px;
        height: 280px;
        left: -100px;
        bottom: -160px;
        background: radial-gradient(circle, rgba(255, 216, 77, 0.08) 0%, transparent 70%);
        pointer-events: none;
    }
    .cta-inner {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 1.2fr 1fr;
        gap: 34px;
        align-items: center;
    }
    .cta-title {
        font-size: 1.6rem;
        line-height: 1.35;
        font-weight: 900;
        margin-bottom: 12px;
    }
    .cta-title .text-accent {
        color: var(--cy--yellow, #5FE0D8);
    }
    .cta-copy {
        color: var(--text-mid);
        line-height: 1.85;
        margin-bottom: 0;
        max-width: 560px;
    }
    .cta-note {
        color: var(--text-low);
        font-size: 0.82rem;
        margin-top: 14px;
    }
    .newsletter-form {
        display: flex;
        gap: 10px;
        align-items: center;
        background: rgba(10, 15, 30, 0.6);
        border: 1px solid rgba(110, 160, 255, 0.18);
        border-radius: 12px;
        padding: 6px;
        max-width: 440px;
    }
    .newsletter-form input {
        flex: 1;
        min-width: 0;
        background: transparent;
        border: 0;
        color: var(--text-hi);
        padding: 12px 12px 12px 10px;
        font-size: 0.9rem;
        outline: none;
    }
    .newsletter-form input::placeholder {
        color: var(--text-placeholder);
    }
    .subscribe-trigger {
        border: 0;
        background: var(--cyan);
        color: #052A2A;
        font-weight: 700;
        font-size: 0.86rem;
        line-height: 1;
        padding: 12px 14px;
        border-radius: 9px;
        cursor: pointer;
        transition: box-shadow 0.2s, transform 0.15s;
    }
    .subscribe-trigger:hover {
        box-shadow: 0 0 18px rgba(95, 224, 216, 0.4);
        transform: translateY(-1px);
    }
    .form-tip {
        color: var(--text-low);
        font-size: 0.8rem;
        margin-top: 12px;
    }

    /* Footer */
    .site-footer {
        background: #080D19;
        border-top: 1px solid rgba(95, 224, 216, 0.12);
        padding: 70px 0 96px;
        margin-top: 40px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 0.7fr 1.2fr;
        gap: 42px;
        padding-bottom: 38px;
        border-bottom: 1px solid rgba(110, 160, 255, 0.08);
    }
    .footer-brand .brand-logo {
        margin-bottom: 16px;
    }
    .footer-desc {
        color: var(--text-mid);
        font-size: 0.88rem;
        line-height: 1.9;
        max-width: 400px;
        margin-bottom: 0;
    }
    .footer-col {
        padding-top: 3px;
    }
    .footer-col-title {
        font-size: 0.98rem;
        font-weight: 700;
        color: #ffffff;
        margin-bottom: 16px;
    }
    .footer-links {
        display: grid;
        gap: 10px;
    }
    .footer-links a {
        color: var(--text-mid);
        font-size: 0.9rem;
        transition: color 0.2s, transform 0.2s;
        width: fit-content;
    }
    .footer-links a:hover {
        color: var(--cyan);
        transform: translateX(3px);
    }
    .footer-contact {
        display: grid;
        gap: 14px;
    }
    .footer-contact span {
        display: flex;
        align-items: flex-start;
        gap: 9px;
        color: var(--text-mid);
        font-size: 0.88rem;
        line-height: 1.7;
    }
    .footer-contact svg {
        width: 16px;
        height: 16px;
        fill: none;
        stroke: currentColor;
        stroke-width: 1.8;
        color: var(--cyan);
        flex-shrink: 0;
        margin-top: 4px;
    }
    .footer-bottom {
        padding-top: 24px;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 12px;
        color: rgba(120, 132, 156, 0.74);
        font-size: 0.82rem;
    }
    .footer-bottom a {
        color: rgba(120, 132, 156, 0.74);
        transition: color 0.2s;
    }
    .footer-bottom a:hover {
        color: var(--cyan);
    }

    /* ========= responsive ========= */
    @media (max-width: 1024px) {
        .desktop-nav {
            gap: 18px;
        }
        .feature-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .duo-grid {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .cta-inner {
            grid-template-columns: 1fr;
        }
    }
    @media (max-width: 767px) {
        body {
            padding-bottom: 76px;
        }
        .site-header {
            height: 66px;
        }
        .header-inner {
            height: 66px;
            gap: 12px;
        }
        .desktop-nav,
        .header-demo-btn {
            display: none;
        }
        .bottom-tab {
            display: block;
        }
        .bottom-tab + .site-footer {
            margin-bottom: 0;
        }
        .logo-word {
            font-size: 1rem;
        }
        .section,
        .features-section,
        .scenario-section,
        .faq-section,
        .cta-section {
            padding: 60px 0;
        }
        .duo-section {
            padding: 50px 0 40px;
        }
        .wrap {
            padding-left: 16px;
            padding-right: 16px;
        }
        .cat-hero {
            padding: 70px 0 60px;
        }
        .cat-hero h1 {
            font-size: 2.2rem;
        }
        .feature-grid {
            grid-template-columns: 1fr;
        }
        .process-steps {
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .scenario-card {
            grid-template-columns: 1fr;
            gap: 0;
        }
        .scenario-thumb {
            min-height: 150px;
        }
        .scenario-card-body {
            padding: 18px 18px 20px;
        }
        .cover-story-picture img {
            min-height: 210px;
        }
        .cover-story-body {
            padding: 20px;
        }
        .cover-story-body h2 {
            font-size: 1.3rem;
        }
        .cta-panel {
            padding: 32px 22px;
        }
        .newsletter-form {
            flex-wrap: wrap;
            padding: 8px;
        }
        .newsletter-form input {
            flex: 1 1 100%;
            padding: 12px 8px;
        }
        .subscribe-trigger {
            width: 100%;
        }
        .section-head {
            margin-bottom: 34px;
        }
        .section-title {
            font-size: 1.55rem;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
            padding-bottom: 24px;
        }
        .site-footer {
            padding: 52px 0 84px;
        }
        .footer-bottom {
            flex-direction: column;
        }
    }
    @media (max-width: 520px) {
        .hero-actions .btn-main,
        .hero-actions .btn-ghost {
            width: 100%;
        }
        .hero-meta-strip {
            flex-direction: column;
            gap: 8px;
        }
        .hero-meta-chip {
            width: fit-content;
            max-width: 100%;
        }
        .section-title {
            font-size: 1.4rem;
        }
        .faq-item summary {
            font-size: 0.92rem;
            padding: 16px 16px;
        }
        .faq-item .faq-answer {
            padding: 0 16px 16px;
            font-size: 0.88rem;
        }
    }
    @media (min-width: 1200px) {
        .section-title {
            font-size: 2.18rem;
        }
    }

/* roulang page: article */
:root {
    --bg: #0A0F1E;
    --bg-deep: #080D19;
    --bg-panel: #101A2E;
    --bg-soft: #0D1526;
    --cyan: #5FE0D8;
    --cyan-strong: #7DEAE3;
    --cyan-deep: #0C3B3F;
    --yellow: #FFD84D;
    --violet: #8B80F9;
    --text: rgba(235, 240, 250, 0.92);
    --text-sub: rgba(160, 174, 200, 0.8);
    --text-weak: rgba(120, 132, 156, 0.72);
    --text-mute: rgba(95, 108, 134, 0.8);
    --border: rgba(110, 160, 255, 0.12);
    --border-hover: rgba(95, 224, 216, 0.4);
    --radius-lg: 16px;
    --radius-md: 10px;
    --shadow-low: 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 18px 40px rgba(0, 15, 30, 0.45);
    --shadow-cyan: 0 0 20px rgba(95, 224, 216, 0.25);
    --shadow-yellow: 0 0 24px rgba(255, 216, 77, 0.3);
}

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

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

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

input,
button {
    font: inherit;
}

::selection {
    background: rgba(95, 224, 216, 0.22);
    color: #fff;
}

.wrap {
    max-width: 1280px;
    margin-inline: auto;
    padding-inline: 24px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    height: 76px;
    border-bottom: 1px solid transparent;
    background: rgba(10, 15, 30, 0.78);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: border-color .3s ease, background .3s ease;
}

.site-header.scrolled {
    border-bottom-color: rgba(95, 224, 216, 0.14);
    background: rgba(8, 13, 25, 0.9);
}

.header-inner {
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    line-height: 1;
    white-space: nowrap;
}

.logo-symbol {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid rgba(95, 224, 216, 0.55);
    background: linear-gradient(145deg, rgba(95, 224, 216, 0.16), rgba(12, 59, 63, 0.35));
    color: var(--cyan);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0.04em;
    box-shadow: var(--shadow-cyan);
}

.logo-word {
    font-size: 1.08rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: rgba(240, 246, 255, 0.96);
}

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    color: rgba(185, 198, 220, 0.86);
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    padding: 10px 0;
    transition: color .25s ease, text-shadow .25s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
    color: rgba(255, 255, 255, 0.98);
    text-shadow: 0 0 16px rgba(95, 224, 216, 0.28);
}

.nav-link.active {
    color: var(--cyan-strong);
}

.nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--cyan);
    box-shadow: 0 0 10px rgba(95, 224, 216, 0.7);
}

.header-demo-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    padding: 0 16px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(95, 224, 216, 0.24);
    background: rgba(95, 224, 216, 0.04);
    color: var(--cyan-strong);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .2s ease;
}

.header-demo-btn:hover {
    background: rgba(95, 224, 216, 0.12);
    border-color: rgba(95, 224, 216, 0.5);
    box-shadow: 0 0 22px rgba(95, 224, 216, 0.2);
    transform: translateY(-1px);
}

.header-demo-btn .dot {
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: var(--cyan);
    box-shadow: 0 0 0 0 rgba(95, 224, 216, 0.6);
    animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
    0% { box-shadow: 0 0 0 0 rgba(95, 224, 216, 0.5); }
    70% { box-shadow: 0 0 0 8px rgba(95, 224, 216, 0); }
    100% { box-shadow: 0 0 0 0 rgba(95, 224, 216, 0); }
}

.mobile-tabbar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    height: 64px;
    background: rgba(6, 10, 19, 0.97);
    border-top: 1px solid rgba(95, 224, 216, 0.18);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.mobile-tabbar a {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: rgba(120, 132, 156, 0.86);
    font-size: 11px;
    font-weight: 600;
    line-height: 1.1;
    transition: color .2s ease, transform .15s ease;
}

.mobile-tabbar a:active {
    transform: scale(0.97);
}

.mobile-tabbar a.active {
    color: var(--cyan);
}

.mobile-tabbar a.active svg {
    filter: drop-shadow(0 0 6px rgba(95, 224, 216, 0.7));
}

.mobile-tabbar svg {
    width: 22px;
    height: 22px;
    stroke-width: 1.7;
}

.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid rgba(110, 160, 255, 0.1);
    padding: 72px 0 44px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.7fr 0.9fr 1.15fr;
    gap: 56px;
}

.footer-brand .brand-logo {
    margin-bottom: 18px;
}

.footer-desc {
    margin: 0;
    max-width: 430px;
    color: rgba(150, 165, 190, 0.82);
    font-size: 14px;
    line-height: 1.85;
}

.footer-col-title {
    margin: 0 0 18px;
    color: rgba(240, 246, 255, 0.94);
    font-size: 15px;
    font-weight: 700;
}

.footer-links,
.footer-contact {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.footer-links a {
    color: rgba(150, 165, 190, 0.82);
    font-size: 14px;
    transition: color .2s ease, transform .2s ease;
}

.footer-links a:hover {
    color: var(--cyan-strong);
    transform: translateX(2px);
}

.footer-contact {
    gap: 12px;
    color: rgba(150, 165, 190, 0.8);
    font-size: 14px;
}

.footer-contact span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-contact svg {
    width: 16px;
    height: 16px;
    color: rgba(95, 224, 216, 0.75);
    flex: none;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid rgba(110, 160, 255, 0.07);
    margin-top: 48px;
    padding-top: 28px;
    color: rgba(95, 108, 134, 0.9);
    font-size: 13px;
    gap: 24px;
    flex-wrap: wrap;
}

/* Article hero */
.article-hero {
    position: relative;
    padding: 52px 0 64px;
    overflow: hidden;
    background:
        radial-gradient(circle at 85% 10%, rgba(12, 59, 63, 0.42), transparent 420px),
        radial-gradient(circle at 8% 80%, rgba(17, 36, 63, 0.25), transparent 360px),
        linear-gradient(180deg, #0C1324 0%, var(--bg) 100%);
    border-bottom: 1px solid rgba(110, 160, 255, 0.1);
}

.article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(110, 160, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(110, 160, 255, 0.035) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 75%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 75%);
}

.article-breadcrumb {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    color: rgba(120, 132, 156, 0.85);
    font-size: 13px;
    margin-bottom: 44px;
}

.article-breadcrumb a {
    transition: color .2s ease;
}

.article-breadcrumb a:hover {
    color: var(--cyan-strong);
}

.article-breadcrumb .crumb-sep {
    color: rgba(95, 108, 134, 0.7);
}

.article-breadcrumb .crumb-current {
    max-width: 380px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-weak);
}

.article-title-wrap {
    position: relative;
    z-index: 2;
    max-width: 920px;
}

.article-kicker {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--cyan-strong);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.article-kicker::before {
    content: "";
    width: 28px;
    height: 2px;
    background: var(--cyan);
    box-shadow: 0 0 12px rgba(95, 224, 216, 0.7);
    border-radius: 2px;
}

.article-title-wrap h1 {
    margin: 0;
    color: rgba(240, 246, 255, 0.98);
    font-size: clamp(2rem, 4.4vw, 3.15rem);
    font-weight: 800;
    line-height: 1.24;
    letter-spacing: -0.01em;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    margin-top: 28px;
    color: rgba(135, 148, 175, 0.85);
    font-size: 14px;
}

.article-source {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.source-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 8px;
    border: 1px solid rgba(95, 224, 216, 0.25);
    background: rgba(95, 224, 216, 0.08);
    color: var(--cyan-strong);
    font-size: 11px;
    font-weight: 800;
}

.article-meta .meta-pipe {
    width: 3px;
    height: 3px;
    border-radius: 999px;
    background: rgba(120, 132, 156, 0.75);
}

.article-cat-pill {
    display: inline-flex;
    align-items: center;
    height: 26px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid rgba(95, 224, 216, 0.3);
    background: rgba(95, 224, 216, 0.07);
    color: var(--cyan-strong);
    font-size: 12px;
    font-weight: 700;
    transition: background .2s ease, box-shadow .2s ease;
}

.article-cat-pill:hover {
    background: rgba(95, 224, 216, 0.14);
    box-shadow: 0 0 16px rgba(95, 224, 216, 0.18);
}

/* Article main */
.article-main {
    padding: 72px 0 56px;
}

.article-content-wrap {
    max-width: 820px;
    margin-inline: auto;
    padding-inline: 24px;
}

.article-body {
    font-size: 1rem;
    line-height: 1.9;
    color: rgba(225, 232, 244, 0.9);
}

.article-body > *:first-child {
    margin-top: 0;
}

.article-body p {
    margin: 0 0 1.5em;
}

.article-body h2,
.article-body h3,
.article-body h4 {
    color: rgba(245, 248, 255, 0.96);
    font-weight: 800;
    line-height: 1.4;
    margin: 2em 0 0.8em;
}

.article-body h2 {
    font-size: 1.55rem;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(110, 160, 255, 0.12);
}

.article-body h3 {
    font-size: 1.25rem;
    font-weight: 750;
}

.article-body h4 {
    font-size: 1.08rem;
}

.article-body a {
    color: var(--cyan-strong);
    transition: color .2s ease, text-shadow .2s ease;
}

.article-body a:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 5px;
    text-decoration-color: rgba(95, 224, 216, 0.7);
}

.article-body strong {
    color: rgba(245, 248, 255, 0.92);
    font-weight: 700;
}

.article-body ul,
.article-body ol {
    margin: 0 0 1.6em;
    padding-left: 1.5em;
}

.article-body li {
    margin: 0.45em 0;
}

.article-body li::marker {
    color: var(--cyan);
}

.article-body blockquote {
    margin: 2em 0;
    padding: 1.2em 1.4em;
    border-left: 3px solid var(--cyan);
    border-radius: 0 12px 12px 0;
    background: linear-gradient(90deg, rgba(12, 59, 63, 0.24), rgba(16, 26, 46, 0.15));
    color: rgba(203, 215, 235, 0.95);
}

.article-body blockquote p {
    margin: 0;
}

.article-body img {
    width: auto;
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: 2em auto;
    box-shadow: var(--shadow-low);
    background: var(--bg-panel);
    border: 1px solid rgba(110, 160, 255, 0.12);
}

.article-body figure {
    margin: 2em 0;
}

.article-body figure img {
    margin-bottom: 10px;
}

.article-body figcaption {
    color: var(--text-weak);
    font-size: 0.82rem;
    text-align: center;
}

.article-body hr {
    border: 0;
    height: 1px;
    margin: 2.4em 0;
    background: linear-gradient(90deg, transparent, rgba(95, 224, 216, 0.38), transparent);
}

.article-body code {
    padding: 0.2em 0.45em;
    border-radius: 6px;
    background: rgba(95, 224, 216, 0.08);
    border: 1px solid rgba(95, 224, 216, 0.12);
    color: #BDF5F0;
    font-size: 0.9em;
}

.article-body pre {
    margin: 1.8em 0;
    padding: 1.2em 1.4em;
    border-radius: 12px;
    background: #0A111F;
    border: 1px solid rgba(110, 160, 255, 0.14);
    overflow-x: auto;
}

.article-body pre code {
    padding: 0;
    background: transparent;
    border: 0;
    color: rgba(225, 232, 244, 0.9);
}

.article-body table {
    width: 100%;
    margin: 2em 0;
    border-collapse: collapse;
    border-radius: 12px;
    overflow: hidden;
}

.article-body th,
.article-body td {
    padding: 0.9em 1em;
    border: 1px solid rgba(110, 160, 255, 0.12);
    text-align: left;
}

.article-body th {
    background: rgba(16, 26, 46, 0.8);
    color: rgba(245, 248, 255, 0.94);
    font-weight: 700;
}

.article-body td {
    background: rgba(13, 21, 38, 0.42);
    color: rgba(195, 208, 228, 0.88);
}

/* tags + pager */
.article-footer-nav {
    margin-top: 52px;
    padding-top: 30px;
    border-top: 1px solid rgba(110, 160, 255, 0.12);
}

.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.article-tags-label {
    color: var(--text-weak);
    font-size: 13px;
    margin-right: 6px;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    height: 28px;
    padding: 0 13px;
    border-radius: 999px;
    background: rgba(95, 224, 216, 0.06);
    border: 1px solid rgba(95, 224, 216, 0.2);
    color: rgba(200, 225, 230, 0.86);
    font-size: 13px;
    transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.tag-chip:hover {
    background: rgba(95, 224, 216, 0.13);
    border-color: var(--border-hover);
    color: var(--cyan-strong);
}

.article-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 8px;
}

.pager-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 78px;
    padding: 16px 18px;
    border-radius: var(--radius-lg);
    background: linear-gradient(145deg, rgba(16, 26, 46, 0.8), rgba(13, 21, 38, 0.7));
    border: 1px solid rgba(110, 160, 255, 0.12);
    transition: border-color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
}

.pager-item:hover {
    border-color: rgba(95, 224, 216, 0.45);
    background: rgba(16, 26, 46, 0.98);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.pager-item em {
    display: block;
    font-style: normal;
    color: var(--text-weak);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.pager-item strong {
    color: rgba(235, 242, 252, 0.95);
    font-size: 15px;
    font-weight: 700;
}

.pager-item .pager-arrow {
    color: var(--cyan);
    font-size: 20px;
    line-height: 1;
    flex: none;
}

.pager-item.pager-next {
    text-align: right;
}

/* channel cards */
.channel-section {
    padding: 64px 0 72px;
    background: linear-gradient(180deg, rgba(13, 21, 38, 0.55), rgba(10, 15, 30, 0.2));
}

.section-eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--cyan-strong);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.section-title {
    margin: 8px 0 8px;
    color: rgba(245, 248, 255, 0.96);
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 800;
    line-height: 1.3;
}

.section-sub {
    margin: 0 0 34px;
    color: var(--text-sub);
    font-size: 15px;
}

.channel-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 22px;
    align-items: stretch;
}

.channel-card {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 18px;
    background: rgba(16, 26, 46, 0.86);
    border: 1px solid rgba(110, 160, 255, 0.14);
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.channel-card:hover {
    transform: translateY(-4px);
    border-color: rgba(95, 224, 216, 0.42);
    box-shadow: var(--shadow-hover);
}

.channel-card-image {
    position: relative;
    height: 210px;
    overflow: hidden;
}

.channel-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

.channel-card:hover .channel-card-image img {
    transform: scale(1.035);
}

.channel-card-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 15, 30, 0.1), rgba(10, 15, 30, 0.78));
}

.channel-card-body {
    position: relative;
    padding: 22px 22px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.channel-tag {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: 6px;
    height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    border: 1px solid rgba(95, 224, 216, 0.24);
    background: rgba(95, 224, 216, 0.08);
    color: var(--cyan-strong);
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 12px;
}

.channel-card h3 {
    margin: 0 0 8px;
    color: rgba(245, 248, 255, 0.96);
    font-size: 18px;
    font-weight: 800;
}

.channel-card p {
    margin: 0 0 20px;
    color: rgba(160, 174, 200, 0.8);
    font-size: 14px;
    line-height: 1.7;
}

.channel-link {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--cyan-strong);
    font-size: 14px;
    font-weight: 700;
    transition: gap .2s ease, color .2s ease;
}

.channel-link:hover {
    gap: 12px;
    color: #fff;
}

/* subscribe */
.subscribe-section {
    padding: 84px 0 90px;
}

.subscribe-card {
    position: relative;
    max-width: 1060px;
    margin-inline: auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 36px;
    align-items: center;
    padding: 44px 46px;
    border-radius: 24px;
    border: 1px solid rgba(95, 224, 216, 0.22);
    background: radial-gradient(circle at 80% 15%, rgba(12, 59, 63, 0.64), transparent 360px), rgba(16, 26, 46, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 0 0 1px rgba(95, 224, 216, 0.05), 0 24px 60px rgba(0, 8, 20, 0.55);
}

.subscribe-card::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 40px;
    right: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(95, 224, 216, 0.7), transparent);
}

.sub-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--yellow);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.subscribe-card h2 {
    margin: 0 0 10px;
    color: rgba(245, 248, 255, 0.98);
    font-size: clamp(1.5rem, 2.6vw, 2rem);
    font-weight: 800;
    line-height: 1.3;
}

.subscribe-card .sub-desc {
    margin: 0;
    color: rgba(160, 174, 200, 0.85);
    font-size: 15px;
    line-height: 1.8;
    max-width: 520px;
}

.sub-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sub-form input {
    width: 100%;
    height: 48px;
    padding: 0 18px;
    border-radius: var(--radius-md);
    background: #0A1324;
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: rgba(240, 246, 255, 0.96);
    outline: none;
    transition: border-color .2s ease, box-shadow .2s ease;
}

.sub-form input::placeholder {
    color: rgba(95, 108, 134, 0.9);
}

.sub-form input:focus {
    border-color: rgba(95, 224, 216, 0.5);
    box-shadow: 0 0 0 3px rgba(95, 224, 216, 0.1);
}

.btn-live {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 24px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(95, 224, 216, 0.9);
    background: linear-gradient(180deg, var(--cyan), #4BCFC7);
    color: #062A2A;
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 0 16px rgba(95, 224, 216, 0.2), 0 6px 22px rgba(95, 224, 216, 0.18);
    transition: box-shadow .25s ease, transform .2s ease, filter .25s ease;
}

.btn-live:hover {
    filter: brightness(1.08);
    box-shadow: 0 0 32px rgba(95, 224, 216, 0.35), 0 8px 26px rgba(95, 224, 216, 0.25);
    transform: translateY(-2px);
}

.btn-live:active {
    transform: translateY(0);
    box-shadow: 0 0 10px rgba(95, 224, 216, 0.2);
}

.sub-privacy {
    margin: 2px 0 0;
    color: var(--text-weak);
    font-size: 12px;
    line-height: 1.6;
}

/* not found */
.notfound-section {
    min-height: 56vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
}

.notfound-box {
    max-width: 600px;
    width: 100%;
    padding: 52px 40px;
    text-align: center;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(16, 26, 46, 0.88), rgba(10, 15, 30, 0.82));
    border: 1px solid rgba(110, 160, 255, 0.14);
    box-shadow: var(--shadow-low);
}

.notfound-code {
    display: inline-flex;
    color: var(--cyan);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.16em;
    border: 1px solid rgba(95, 224, 216, 0.25);
    border-radius: 999px;
    padding: 6px 14px;
    margin-bottom: 18px;
}

.notfound-box h1 {
    margin: 0 0 10px;
    color: rgba(245, 248, 255, 0.98);
    font-size: 2.2rem;
    font-weight: 800;
}

.notfound-box p {
    margin: 0 0 30px;
    color: var(--text-sub);
    font-size: 15px;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 28px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(95, 224, 216, 0.65);
    background: rgba(95, 224, 216, 0.08);
    color: var(--cyan-strong);
    font-weight: 800;
    transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
}

.btn-back:hover {
    background: rgba(95, 224, 216, 0.18);
    box-shadow: 0 0 26px rgba(95, 224, 216, 0.2);
    transform: translateY(-2px);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid rgba(95, 224, 216, 0.8);
    outline-offset: 3px;
}

@media (max-width: 1024px) {
    .desktop-nav {
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .channel-grid {
        grid-template-columns: 1fr 1fr;
    }

    .subscribe-card {
        grid-template-columns: 1fr;
        padding: 36px 30px;
    }
}

@media (max-width: 900px) {
    .article-title-wrap h1 {
        font-size: clamp(1.7rem, 5vw, 2.45rem);
    }
}

@media (max-width: 767px) {
    body {
        padding-bottom: 64px;
    }

    .site-header {
        height: 60px;
    }

    .header-inner {
        height: 60px;
        gap: 12px;
    }

    .desktop-nav,
    .header-demo-btn {
        display: none;
    }

    .mobile-tabbar {
        display: flex;
    }

    .wrap {
        padding-inline: 16px;
    }

    .article-hero {
        padding: 38px 0 48px;
    }

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

    .article-title-wrap h1 {
        font-size: 1.7rem;
        line-height: 1.35;
    }

    .article-main {
        padding: 44px 0 36px;
    }

    .article-content-wrap {
        padding-inline: 20px;
    }

    .article-body {
        font-size: 0.96rem;
    }

    .article-body blockquote {
        padding: 18px 16px;
    }

    .article-pager {
        grid-template-columns: 1fr;
    }

    .channel-section {
        padding: 42px 0 50px;
    }

    .channel-grid {
        grid-template-columns: 1fr;
    }

    .channel-card-image {
        height: 180px;
    }

    .subscribe-section {
        padding: 56px 0 64px;
    }

    .subscribe-card {
        padding: 32px 20px;
        gap: 28px;
        border-radius: 18px;
    }

    .site-footer {
        padding: 48px 0 32px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

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

    .notfound-box {
        padding: 40px 22px;
    }

    .notfound-box h1 {
        font-size: 1.75rem;
    }
}

@media (max-width: 520px) {
    .logo-word {
        font-size: 1rem;
    }

    .logo-symbol {
        width: 34px;
        height: 34px;
    }

    .article-kicker {
        letter-spacing: 0.08em;
    }

    .article-meta {
        gap: 8px 14px;
        font-size: 13px;
    }

    .channel-card-body {
        padding: 18px 16px 20px;
    }

    .footer-brand .brand-logo {
        margin-bottom: 14px;
    }

    .footer-contact span svg {
        width: 14px;
        height: 14px;
    }
}

/* roulang page: category2 */
:root {
    --bg: #050A15;
    --bg-deep: #02050D;
    --panel: #0D1526;
    --panel-2: #0F1930;
    --panel-glass: rgba(13, 22, 40, 0.62);
    --line: rgba(130, 170, 255, 0.13);
    --line-bright: rgba(95, 224, 216, 0.44);
    --cyan: #5FE0D8;
    --cyan-soft: #8AF0E8;
    --yellow: #FFD84D;
    --purple: #8B80F9;
    --white: #EDF2FB;
    --text-1: rgba(235, 240, 250, 0.94);
    --text-2: rgba(160, 174, 200, 0.78);
    --text-3: rgba(118, 132, 158, 0.72);
    --text-disabled: rgba(135, 148, 170, 0.42);
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    --font-mono: "JetBrains Mono", "SFMono-Regular", "Roboto Mono", "Consolas", monospace;
    --shadow-card: 0 14px 32px rgba(0, 0, 0, 0.26);
    --shadow-float: 0 20px 46px rgba(2, 8, 22, 0.5);
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-btn: 10px;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--text-1);
    font-family: var(--font-sans);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  body, p, h1, h2, h3, h4, ul, ol, figure {
    margin: 0;
    padding: 0;
  }

  ul, ol {
    list-style: none;
  }

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

  a {
    color: inherit;
    text-decoration: none;
    transition: color 0.22s ease;
  }

  button,
  input {
    font: inherit;
    color: inherit;
  }

  ::selection {
    background: rgba(95, 224, 216, 0.24);
    color: #fff;
  }

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

  .visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    overflow: hidden;
    white-space: nowrap;
  }

  body {
    background-image:
      radial-gradient(circle at 80% 8%, rgba(20, 52, 74, 0.24), transparent 28rem),
      radial-gradient(circle at 12% 46%, rgba(95, 224, 216, 0.04), transparent 24rem),
      linear-gradient(180deg, #07101F 0%, #050A15 42%, #02050D 100%);
    background-attachment: fixed;
  }

  /* ------ header ------ */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 80;
    height: 76px;
    display: flex;
    align-items: center;
    background: rgba(7, 12, 25, 0.66);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .site-header.scrolled {
    background: rgba(7, 12, 25, 0.9);
    border-bottom-color: rgba(95, 224, 216, 0.14);
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.2);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
  }

  .brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .logo-symbol {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(95, 224, 216, 0.16), rgba(95, 224, 216, 0.04));
    border: 1px solid rgba(95, 224, 216, 0.54);
    color: var(--cyan);
    font-weight: 800;
    font-size: 15px;
    letter-spacing: 0.02em;
    font-family: var(--font-mono);
    box-shadow: 0 0 0 rgba(95, 224, 216, 0);
    transition: box-shadow 0.3s ease;
  }

  .brand-logo:hover .logo-symbol {
    box-shadow: 0 0 16px rgba(95, 224, 216, 0.22);
  }

  .logo-word {
    color: #f0f6ff;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.02em;
  }

  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 30px;
  }

  .nav-link {
    position: relative;
    color: var(--text-2);
    font-size: 15px;
    font-weight: 600;
    padding: 28px 0 24px;
    letter-spacing: 0.01em;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 18px;
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--cyan);
    transform: translateX(-50%) scaleX(0);
    opacity: 0;
    transition: opacity 0.24s ease, transform 0.24s ease;
  }

  .nav-link:hover {
    color: #fff;
  }

  .nav-link.active {
    color: var(--cyan-soft);
  }

  .nav-link.active::after {
    opacity: 1;
    transform: translateX(-50%) scaleX(1);
  }

  .header-demo-btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid rgba(95, 224, 216, 0.36);
    background: rgba(95, 224, 216, 0.06);
    color: var(--cyan-soft);
    font-size: 14px;
    font-weight: 600;
    transition: background 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
    white-space: nowrap;
  }

  .header-demo-btn .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 0 0 rgba(95, 224, 216, 0.5);
    animation: pulse 2s infinite;
  }

  .header-demo-btn:hover {
    background: rgba(95, 224, 216, 0.12);
    border-color: rgba(95, 224, 216, 0.64);
    color: #fff;
    box-shadow: 0 0 18px rgba(95, 224, 216, 0.14);
  }

  .header-demo-btn:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 3px;
  }

  @keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(95, 224, 216, 0.46); }
    70% { box-shadow: 0 0 0 8px rgba(95, 224, 216, 0); }
    100% { box-shadow: 0 0 0 0 rgba(95, 224, 216, 0); }
  }

  .page-main {
    overflow: hidden;
  }

  /* ------ category specific hero ------ */
  .cat-hero {
    position: relative;
    display: flex;
    align-items: center;
    min-height: calc(520px + 76px);
    padding: 150px 0 82px;
    isolation: isolate;
    overflow: hidden;
  }

  .cat-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("/assets/images/backpic/back-2.webp") center 28% / cover no-repeat;
    opacity: 0.22;
    z-index: -2;
  }

  .cat-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(100deg, rgba(4, 9, 20, 0.92) 4%, rgba(6, 14, 30, 0.7) 48%, rgba(5, 10, 24, 0.34) 100%),
      radial-gradient(circle at 80% 30%, rgba(12, 62, 71, 0.15), transparent 30rem);
    z-index: -1;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-3);
    margin-bottom: 26px;
  }

  .breadcrumb a {
    color: var(--text-2);
  }

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

  .breadcrumb-sep {
    color: rgba(110, 135, 170, 0.6);
  }

  .cat-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.6fr);
    gap: 60px;
    align-items: center;
  }

  .hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--cyan-soft);
    text-transform: uppercase;
    margin-bottom: 16px;
  }

  .hero-kicker-line {
    width: 34px;
    height: 1px;
    background: rgba(95, 224, 216, 0.5);
  }

  .cat-hero h1 {
    font-size: clamp(2.6rem, 5.4vw, 4.2rem);
    line-height: 1.14;
    color: #f4faff;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 20px;
  }

  .cat-hero .lead {
    max-width: 620px;
    color: var(--text-2);
    font-size: 16px;
    line-height: 1.85;
    margin-bottom: 28px;
  }

  .hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 26px;
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 46px;
    padding: 0 22px;
    border-radius: var(--radius-btn);
    background: var(--cyan);
    color: #062A2A;
    font-size: 15px;
    font-weight: 700;
    border: 1px solid #63f2e6;
    box-shadow: 0 0 18px rgba(95, 224, 216, 0.14), 0 8px 20px rgba(0, 0, 0, 0.16);
    transition: transform 0.2s ease, box-shadow 0.24s ease, background 0.24s ease;
    cursor: pointer;
  }

  .btn-primary:hover {
    background: var(--cyan-soft);
    box-shadow: 0 0 34px rgba(95, 224, 216, 0.36), 0 12px 24px rgba(0, 0, 0, 0.2);
    transform: translateY(-1px);
  }

  .btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 10px rgba(95, 224, 216, 0.16);
  }

  .btn-primary:focus-visible {
    outline: 2px solid var(--cyan-soft);
    outline-offset: 3px;
  }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 46px;
    padding: 0 20px;
    border-radius: var(--radius-btn);
    border: 1px solid rgba(145, 170, 220, 0.28);
    background: rgba(15, 25, 48, 0.4);
    color: #cbd6ec;
    font-size: 15px;
    font-weight: 600;
    transition: border-color 0.24s ease, background 0.24s ease, color 0.24s ease;
  }

  .btn-ghost:hover {
    border-color: rgba(95, 224, 216, 0.55);
    background: rgba(95, 224, 216, 0.06);
    color: #fff;
  }

  .btn-ghost:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 3px;
  }

  .hero-note {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-3);
    font-size: 13px;
  }

  .hero-note svg {
    width: 17px;
    height: 17px;
    color: var(--cyan);
  }

  .hero-panel {
    position: relative;
  }

  .glass-panel {
    background: rgba(10, 18, 34, 0.62);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(110, 160, 255, 0.18);
    border-radius: 18px;
    box-shadow: 0 28px 62px rgba(0, 0, 0, 0.36);
    padding: 28px;
    overflow: hidden;
    position: relative;
  }

  .glass-panel::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(95, 224, 216, 0.62), transparent);
    opacity: 0.7;
  }

  .panel-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
  }

  .panel-index {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--text-3);
  }

  .next-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--cyan-soft);
    border: 1px solid rgba(95, 224, 216, 0.32);
    border-radius: 999px;
    padding: 4px 12px;
    background: rgba(95, 224, 216, 0.06);
  }

  .next-pill .pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 0 0 rgba(95, 224, 216, 0.5);
    animation: pulse 2.2s infinite;
  }

  .glass-panel h3 {
    font-size: 20px;
    font-weight: 700;
    color: #dff7ff;
    line-height: 1.5;
  }

  .panel-meta {
    display: flex;
    align-items: center;
    gap: 26px;
    margin: 14px 0 22px;
    color: var(--text-2);
    font-size: 13px;
    flex-wrap: wrap;
  }

  .panel-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
  }

  .panel-meta svg {
    width: 16px;
    height: 16px;
    color: var(--cyan);
    opacity: 0.75;
  }

  .hero-stats {
    display: flex;
    gap: 20px;
    border-top: 1px solid rgba(110, 160, 255, 0.1);
    margin-top: 24px;
    padding-top: 18px;
    flex-wrap: wrap;
  }

  .hero-stats-item {
    flex: 1 1 120px;
  }

  .hero-stats-item strong {
    display: block;
    font-family: var(--font-mono);
    font-size: 20px;
    color: var(--cyan-soft);
    line-height: 1.3;
  }

  .hero-stats-item span {
    color: var(--text-3);
    font-size: 12px;
    letter-spacing: 0.04em;
  }

  /* sections generic */
  .cat-section {
    position: relative;
    padding: 82px 0 86px;
  }

  .cat-section + .cat-section {
    border-top: 1px solid rgba(110, 160, 255, 0.08);
  }

  .section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--cyan);
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .section-title {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    line-height: 1.25;
    font-weight: 800;
    color: #f1f6ff;
    letter-spacing: -0.01em;
  }

  .section-desc {
    margin-top: 14px;
    max-width: 720px;
    color: var(--text-2);
    font-size: 15px;
  }

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

  .section-head .section-sub {
    margin-top: 10px;
    color: var(--text-2);
    font-size: 15px;
    max-width: 720px;
  }

  /* product line stream rows */
  .stream-list {
    display: grid;
    gap: 16px;
  }

  .stream-row {
    display: grid;
    grid-template-columns: 78px minmax(0, 1fr) 240px;
    align-items: center;
    gap: 22px;
    padding: 12px 12px 12px 24px;
    background: rgba(13, 22, 40, 0.62);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    transition: border-color 0.24s ease, background 0.24s ease, transform 0.25s ease;
    min-height: 156px;
  }

  .stream-row:hover {
    border-color: rgba(95, 224, 216, 0.32);
    background: rgba(16, 29, 51, 0.78);
    transform: translateY(-2px);
  }

  .stream-no {
    font-family: var(--font-mono);
    font-size: 30px;
    font-weight: 700;
    color: rgba(95, 224, 216, 0.32);
    text-align: center;
    border-right: 1px solid rgba(110, 160, 255, 0.1);
    line-height: 1;
  }

  .stream-row:nth-child(2) .stream-no {
    color: rgba(255, 216, 77, 0.3);
  }

  .stream-row:nth-child(3) .stream-no {
    color: rgba(139, 128, 249, 0.34);
  }

  .stream-text h3 {
    font-size: 17px;
    font-weight: 700;
    color: #edf4ff;
    margin-bottom: 8px;
  }

  .stream-text p {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.7;
  }

  .stream-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
  }

  .tag {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    background: rgba(110, 160, 255, 0.08);
    border: 1px solid rgba(110, 160, 255, 0.15);
    color: var(--text-2);
    line-height: 1;
    white-space: nowrap;
  }

  .tag-cyan {
    background: rgba(95, 224, 216, 0.08);
    border-color: rgba(95, 224, 216, 0.2);
    color: var(--cyan-soft);
  }

  .tag-yellow {
    background: rgba(255, 216, 77, 0.07);
    border-color: rgba(255, 216, 77, 0.2);
    color: #ffe08b;
  }

  .tag-purple {
    background: rgba(139, 128, 249, 0.08);
    border-color: rgba(139, 128, 249, 0.2);
    color: #c6bfff;
  }

  .stream-media {
    border-radius: 12px;
    overflow: hidden;
  }

  .stream-media img {
    width: 100%;
    height: 112px;
    object-fit: cover;
    border: 1px solid rgba(110, 160, 255, 0.1);
  }

  .stream-media-fallback {
    background: linear-gradient(140deg, #12233e, #0b162b);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* replay section */
  .replay-feature {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(10, 18, 34, 0.68);
    transition: box-shadow 0.26s ease, border-color 0.26s ease;
  }

  .replay-feature:hover {
    box-shadow: 0 22px 48px rgba(0, 0, 0, 0.28);
    border-color: rgba(95, 224, 216, 0.3);
  }

  .replay-feature-media {
    position: relative;
    min-height: 286px;
  }

  .replay-feature-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .play-layer {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(4, 9, 18, 0.35);
    transition: background 0.24s ease;
  }

  .replay-feature:hover .play-layer,
  .mini-card:hover .play-layer {
    background: rgba(4, 9, 18, 0.55);
  }

  .play-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 1px solid rgba(240, 250, 255, 0.5);
    background: rgba(5, 10, 20, 0.58);
    color: #fff;
    backdrop-filter: blur(4px);
  }

  .play-icon svg {
    width: 22px;
    height: 22px;
    margin-left: 2px;
  }

  .replay-feature-content {
    padding: 30px 32px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }

  .content-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-3);
    margin-bottom: 12px;
    flex-wrap: wrap;
  }

  .content-meta .tag {
    height: 22px;
    line-height: 1;
  }

  .replay-feature-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: #eff7ff;
    line-height: 1.4;
    margin-bottom: 12px;
  }

  .replay-feature-content p {
    color: var(--text-2);
    font-size: 14px;
    max-width: 520px;
    margin-bottom: 18px;
  }

  .small-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: auto;
  }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 38px;
    padding: 0 16px;
    border-radius: 999px;
    background: rgba(95, 224, 216, 0.09);
    border: 1px solid rgba(95, 224, 216, 0.34);
    color: var(--cyan-soft);
    font-size: 13px;
    font-weight: 600;
    transition: background 0.24s ease, border-color 0.24s ease;
  }

  .btn-secondary:hover {
    background: rgba(95, 224, 216, 0.16);
    border-color: rgba(95, 224, 216, 0.58);
    color: #fff;
  }

  .btn-secondary:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 2px;
  }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--cyan);
    font-size: 13px;
    font-weight: 600;
  }

  .text-link:hover {
    color: var(--cyan-soft);
  }

  .mini-replay-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 18px;
  }

  .mini-card {
    border: 1px solid var(--line);
    background: rgba(10, 18, 34, 0.58);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
    display: flex;
    flex-direction: column;
  }

  .mini-card:hover {
    transform: translateY(-4px);
    border-color: rgba(95, 224, 216, 0.34);
    background: rgba(13, 26, 47, 0.8);
  }

  .mini-media {
    position: relative;
    height: 128px;
    overflow: hidden;
  }

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

  .mini-media .tag {
    position: absolute;
    left: 10px;
    top: 10px;
    background: rgba(7, 13, 26, 0.74);
    border-color: rgba(255, 255, 255, 0.1);
    color: #dbe6ff;
    backdrop-filter: blur(4px);
  }

  .mini-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    margin-bottom: 8px;
  }

  .mini-meta-dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--cyan);
    opacity: 0.5;
  }

  .mini-card-content {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
  }

  .mini-card-content h3 {
    font-size: 15px;
    font-weight: 700;
    color: #eaf2ff;
    line-height: 1.45;
  }

  .mini-card-content p {
    color: var(--text-2);
    font-size: 13px;
    line-height: 1.6;
    flex: 1;
  }

  .mini-card-content .text-link {
    font-size: 12px;
    margin-top: 8px;
  }

  /* scenarios */
  .scenario-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .scenario-item {
    background: rgba(13, 25, 46, 0.62);
    border: 1px solid var(--line);
    padding: 30px;
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    transition: border-color 0.24s ease, background 0.24s ease, transform 0.24s ease;
  }

  .scenario-item:hover {
    border-color: rgba(95, 224, 216, 0.28);
    background: rgba(14, 29, 52, 0.76);
    transform: translateY(-2px);
  }

  .scenario-item::after {
    content: "";
    position: absolute;
    right: -36px;
    top: -36px;
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(95, 224, 216, 0.1), transparent 72%);
    pointer-events: none;
  }

  .scenario-icon {
    width: 44px;
    height: 44px;
    margin-bottom: 16px;
    color: var(--cyan-soft);
  }

  .scenario-item h3 {
    font-size: 17px;
    color: #e8f2ff;
    margin-bottom: 10px;
    font-weight: 700;
  }

  .scenario-item p {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.75;
    margin-bottom: 14px;
  }

  .scenario-desc-notes {
    border-top: 1px solid rgba(110, 160, 255, 0.1);
    padding-top: 12px;
  }

  .scenario-desc-notes li {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    color: var(--text-2);
    font-size: 13px;
    padding: 5px 0;
  }

  .scenario-desc-notes svg {
    width: 15px;
    height: 15px;
    margin-top: 5px;
    color: var(--cyan);
    flex-shrink: 0;
  }

  /* flow steps */
  .flow-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: flow;
  }

  .flow-step {
    position: relative;
    background: rgba(9, 17, 32, 0.7);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 26px 22px 24px;
    min-height: 176px;
    transition: border-color 0.24s ease;
  }

  .flow-step:hover {
    border-color: rgba(95, 224, 216, 0.36);
  }

  .flow-step-num {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--cyan);
    letter-spacing: 0.1em;
    margin-bottom: 10px;
  }

  .flow-step h3 {
    font-size: 16px;
    font-weight: 700;
    color: #eef4ff;
    margin-bottom: 8px;
    line-height: 1.4;
  }

  .flow-step p {
    color: var(--text-2);
    font-size: 13px;
    line-height: 1.7;
  }

  .flow-step::after {
    content: "";
    position: absolute;
    right: -11px;
    top: 30px;
    width: 20px;
    height: 1px;
    background: linear-gradient(90deg, rgba(95, 224, 216, 0.35), transparent);
  }

  .flow-step:last-child::after {
    display: none;
  }

  /* faq */
  .faq-wrap {
    max-width: 920px;
  }

  .faq-item {
    border: 1px solid var(--line);
    background: rgba(9, 17, 32, 0.56);
    border-radius: 12px;
    margin-bottom: 10px;
    padding: 0 24px;
    transition: border-color 0.24s ease, background 0.24s ease;
  }

  .faq-item:hover {
    border-color: rgba(95, 224, 216, 0.22);
  }

  .faq-item[open] {
    border-color: rgba(95, 224, 216, 0.38);
    background: rgba(9, 21, 39, 0.78);
  }

  .faq-item summary {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    cursor: pointer;
    padding: 17px 0;
    font-weight: 600;
    color: #dfeaff;
    font-size: 15px;
    transition: color 0.2s ease;
    min-height: 56px;
  }

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

  .faq-item summary:hover {
    color: var(--cyan-soft);
  }

  .faq-toggle-icon {
    position: relative;
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
  }

  .faq-toggle-icon::before,
  .faq-toggle-icon::after {
    content: "";
    position: absolute;
    background: var(--cyan);
    border-radius: 2px;
    transition: transform 0.24s ease;
  }

  .faq-toggle-icon::before {
    width: 16px;
    height: 2px;
    top: 8px;
    left: 1px;
    box-shadow: 0 0 8px rgba(95, 224, 216, 0.3);
  }

  .faq-toggle-icon::after {
    width: 2px;
    height: 16px;
    left: 8px;
    top: 1px;
    box-shadow: 0 0 8px rgba(95, 224, 216, 0.24);
  }

  .faq-item[open] .faq-toggle-icon::after {
    transform: scaleY(0);
  }

  .faq-answer {
    color: var(--text-2);
    font-size: 14px;
    padding: 0 0 22px;
    line-height: 1.9;
    border-top: 1px dashed rgba(110, 160, 255, 0.12);
    margin-top: 4px;
  }

  .faq-answer p {
    margin-top: 18px;
  }

  /* subscribe / CTA */
  .subscribe-area {
    position: relative;
    padding: 0 0 100px;
  }

  .subscribe-inner {
    background: rgba(12, 24, 47, 0.66);
    border: 1px solid rgba(95, 224, 216, 0.28);
    border-radius: 20px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.78fr);
    gap: 36px;
    padding: 42px 44px;
    position: relative;
    overflow: hidden;
  }

  .subscribe-inner::before {
    content: "";
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(95, 224, 216, 0.14), transparent 66%);
    top: -180px;
    right: -80px;
    pointer-events: none;
  }

  .subscribe-title {
    font-size: clamp(1.4rem, 2.4vw, 1.9rem);
    color: #eff5ff;
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1.4;
    margin-bottom: 12px;
  }

  .subscribe-desc {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.8;
    max-width: 460px;
  }

  .subscribe-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .subscribe-form-row {
    display: flex;
    gap: 10px;
  }

  .subscribe-form input[type="email"] {
    flex: 1;
    height: 48px;
    border-radius: var(--radius-btn);
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: #0b1528;
    color: #e8f4ff;
    padding: 0 16px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.22s ease, box-shadow 0.22s ease;
    min-width: 0;
  }

  .subscribe-form input[type="email"]::placeholder {
    color: var(--text-3);
  }

  .subscribe-form input[type="email"]:focus {
    border-color: rgba(95, 224, 216, 0.7);
    box-shadow: 0 0 0 3px rgba(95, 224, 216, 0.1);
  }

  .subscribe-form .btn-primary {
    height: 48px;
    white-space: nowrap;
  }

  .subscribe-note {
    display: flex;
    align-items: flex-start;
    gap: 7px;
    color: var(--text-3);
    font-size: 12px;
    line-height: 1.55;
  }

  .subscribe-note svg {
    width: 14px;
    height: 14px;
    color: var(--cyan);
    flex-shrink: 0;
    margin-top: 3px;
  }

  /* footer */
  .site-footer {
    border-top: 1px solid rgba(110, 160, 255, 0.1);
    padding: 52px 0 28px;
    background: rgba(3, 7, 15, 0.72);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 1.2fr;
    gap: 54px;
    padding-bottom: 40px;
  }

  .footer-desc {
    color: var(--text-2);
    font-size: 13px;
    line-height: 1.8;
    max-width: 340px;
    margin-top: 16px;
  }

  .footer-col-title {
    font-size: 13px;
    font-weight: 600;
    color: #cdd9ef;
    letter-spacing: 0.02em;
    margin-bottom: 15px;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
  }

  .footer-links a {
    color: var(--text-2);
    font-size: 14px;
  }

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

  .footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .footer-contact span {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-2);
    font-size: 14px;
    word-break: break-all;
  }

  .footer-contact svg {
    width: 17px;
    height: 17px;
    color: var(--cyan);
    flex-shrink: 0;
    margin-top: 4px;
  }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border-top: 1px solid rgba(110, 160, 255, 0.08);
    padding-top: 26px;
    color: var(--text-3);
    font-size: 13px;
    flex-wrap: wrap;
  }

  .footer-bottom a {
    color: var(--text-2);
  }

  .footer-bottom a:hover {
    color: var(--cyan);
  }

  /* mobile tabbar */
  .mobile-tabbar {
    display: none;
  }

  @media (max-width: 1024px) {
    .cat-hero {
      min-height: 0;
      padding-top: 112px;
    }

    .cat-hero-grid {
      grid-template-columns: minmax(0, 1fr) minmax(280px, 0.56fr);
      gap: 30px;
    }

    .desktop-nav {
      gap: 22px;
    }

    .nav-link {
      font-size: 14px;
    }

    .stream-row {
      grid-template-columns: 70px minmax(0, 1fr) 200px;
      gap: 16px;
      padding-left: 14px;
    }

    .replay-feature-content {
      padding: 24px 24px;
    }

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

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

    .flow-step::after {
      display: none;
    }

    .footer-grid {
      grid-template-columns: 1fr 0.8fr;
      gap: 36px;
    }

    .footer-brand {
      grid-column: 1 / -1;
    }

    .subscribe-inner {
      grid-template-columns: 1fr;
      gap: 20px;
    }
  }

  @media (max-width: 768px) {
    body {
      padding-bottom: 70px;
    }

    .site-header {
      height: 64px;
    }

    .desktop-nav {
      display: none;
    }

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

    .header-inner {
      justify-content: space-between;
    }

    .page-main {
      padding-top: 64px;
    }

    .mobile-tabbar {
      display: flex;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 68px;
      background: #08101F;
      border-top: 1px solid rgba(95, 224, 216, 0.24);
      box-shadow: 0 -12px 30px rgba(0, 0, 0, 0.38);
      z-index: 60;
      align-items: stretch;
    }

    .mobile-tabbar a {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 4px;
      color: var(--text-3);
      font-size: 11px;
      transition: color 0.2s ease, background 0.2s ease;
      position: relative;
    }

    .mobile-tabbar a:hover {
      color: var(--text-1);
      background: rgba(255, 255, 255, 0.02);
    }

    .mobile-tabbar a.active {
      color: var(--cyan-soft);
    }

    .mobile-tabbar a.active svg {
      opacity: 1;
      filter: drop-shadow(0 0 6px rgba(95, 224, 216, 0.55));
    }

    .mobile-tabbar a:not(.active) svg {
      opacity: 0.7;
    }

    .mobile-tabbar svg {
      width: 22px;
      height: 22px;
    }

    .cat-hero {
      padding-top: 52px;
      padding-bottom: 50px;
    }

    .cat-hero-grid,
    .replay-feature {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .hero-panel {
      max-width: 540px;
    }

    .cat-hero .lead {
      font-size: 14px;
    }

    .glass-panel {
      padding: 22px;
    }

    .hero-stats-item strong {
      font-size: 17px;
    }

    .replay-feature-media {
      min-height: 220px;
    }

    .replay-feature-content h3 {
      font-size: 19px;
    }

    .mini-replay-grid {
      grid-template-columns: 1fr;
    }

    .scenario-grid {
      grid-template-columns: 1fr;
    }

    .scenario-item {
      padding: 22px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .subscribe-inner {
      padding: 26px 22px;
    }

    .wrap {
      padding-left: 16px;
      padding-right: 16px;
    }

    .section-title {
      font-size: 1.55rem;
    }

    .cat-section {
      padding: 58px 0 60px;
    }

    .front-page-spacing--footer {
      padding-bottom: 14px;
    }

    .footer-bottom {
      justify-content: center;
      text-align: center;
    }
  }

  @media (max-width: 640px) {
    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }

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

    .stream-row {
      grid-template-columns: 1fr;
      padding: 18px 18px 18px 20px;
      gap: 12px;
    }

    .stream-no {
      display: none;
    }

    .stream-media img {
      height: 150px;
    }

    .subscribe-form-row {
      flex-direction: column;
    }

    .subscribe-form input[type="email"] {
      width: 100%;
    }

    .footer-grid {
      grid-template-columns: 1fr;
    }

    .footer-bottom {
      font-size: 12px;
      line-height: 1.7;
    }

    .cat-hero .hero-note {
      font-size: 12px;
    }

    .replay-feature-content {
      padding: 20px 18px;
    }

    .flow-steps {
      grid-template-columns: 1fr;
    }
  }

  @media (min-width: 769px) {
    .wrap {
      padding-left: 24px;
      padding-right: 24px;
    }
  }

/* roulang page: category3 */
:root {
    --bg: #0A0F1E;
    --bg-2: #101A2E;
    --bg-3: #0D1526;
    --surface: rgba(16, 26, 46, 0.92);
    --surface-raised: rgba(23, 35, 60, 0.88);
    --line: rgba(110, 160, 255, 0.12);
    --line-strong: rgba(95, 224, 216, 0.4);
    --cyber: #5FE0D8;
    --cyber-deep: #0C3B3F;
    --citrine: #FFD84D;
    --orchid: #8B80F9;
    --text-main: rgba(235, 240, 250, 0.92);
    --text-soft: rgba(160, 174, 200, 0.8);
    --text-mute: rgba(120, 132, 156, 0.72);
    --text-placeholder: rgba(95, 108, 134, 0.8);
    --text-disabled: rgba(90, 100, 120, 0.45);
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "HarmonyOS Sans SC", "Segoe UI", sans-serif;
    --font-mono: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", Consolas, monospace;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --shadow-low: 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-mid: 0 18px 40px rgba(0, 15, 30, 0.45);
    --shadow-cyber: 0 0 20px rgba(95, 224, 216, 0.22);
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    padding-top: 76px;
  }
  @media (max-width: 767px) {
    body { padding-top: 64px; padding-bottom: 68px; font-size: 14px; }
  }

  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  button, input, select, textarea { font-family: inherit; }
  ::selection { background: rgba(95, 224, 216, .22); color: #fff; }
  :focus-visible {
    outline: 2px solid var(--cyber);
    outline-offset: 3px;
    border-radius: 8px;
  }

  .wrap {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }
  @media (max-width: 640px) {
    .wrap { padding-left: 16px; padding-right: 16px; }
  }

  /* Header */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 80;
    height: 76px;
    display: flex;
    align-items: center;
    background: rgba(10, 15, 30, 0.58);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid transparent;
    transition: background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
  }
  .site-header.is-scrolled {
    background: rgba(10, 15, 30, 0.78);
    border-bottom-color: rgba(95, 224, 216, 0.14);
    box-shadow: 0 12px 28px rgba(0, 5, 18, .35);
  }
  .header-inner {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 76px;
  }
  .brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    flex-shrink: 0;
    line-height: 1;
  }
  .logo-symbol {
    width: 42px;
    height: 42px;
    display: inline-grid;
    place-items: center;
    background: linear-gradient(135deg, #7BF3EB 0%, #3AB9C2 100%);
    color: #07141c;
    font-weight: 900;
    font-size: 1rem;
    letter-spacing: -0.02em;
    border-radius: 12px;
    box-shadow: 0 0 18px rgba(95, 224, 216, 0.25), inset 0 1px 0 rgba(255, 255, 255, .5);
  }
  .logo-word {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: .02em;
    color: #F4F8FF;
    white-space: nowrap;
  }
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 32px;
  }
  .nav-link {
    position: relative;
    color: var(--text-soft);
    font-weight: 600;
    font-size: 15px;
    padding: 10px 0;
    transition: color .25s var(--ease);
    white-space: nowrap;
  }
  .nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    width: 0;
    height: 2px;
    border-radius: 99px;
    background: var(--cyber);
    transform: translateX(-50%);
    transition: width .25s var(--ease), box-shadow .25s var(--ease);
  }
  .nav-link:hover { color: #fff; }
  .nav-link.active { color: var(--cyber); }
  .nav-link.active::after {
    width: 20px;
    box-shadow: 0 0 12px var(--cyber);
  }
  .header-demo-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    border: 1px solid rgba(95, 224, 216, .42);
    color: var(--cyber);
    border-radius: 10px;
    font-weight: 600;
    font-size: 14px;
    background: rgba(95, 224, 216, .06);
    transition: all .25s var(--ease);
    white-space: nowrap;
  }
  .header-demo-btn .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--cyber);
    box-shadow: 0 0 0 0 rgba(95, 224, 216, .6);
    animation: pulse-dot 2.4s infinite;
  }
  .header-demo-btn:hover {
    background: rgba(95, 224, 216, .14);
    border-color: rgba(95, 224, 216, .72);
    box-shadow: 0 0 18px rgba(95, 224, 216, .15);
    color: #fff;
  }
  @keyframes pulse-dot {
    0% { box-shadow: 0 0 0 0 rgba(95, 224, 216, .55); }
    70% { box-shadow: 0 0 0 8px rgba(95, 224, 216, 0); }
    100% { box-shadow: 0 0 0 0 rgba(95, 224, 216, 0); }
  }

  @media (max-width: 1080px) {
    .desktop-nav { gap: 24px; }
    .nav-link { font-size: 14px; }
  }
  @media (max-width: 767px) {
    .site-header { height: 64px; }
    .header-inner { height: 64px; }
    .desktop-nav { display: none; }
    .header-demo-btn { display: none; }
    .logo-symbol { width: 38px; height: 38px; border-radius: 10px; }
    .logo-word { font-size: 1.02rem; }
  }

  /* Mobile bottom tab */
  .mobile-tabbar {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    height: 64px;
    background: #0C1222;
    border-top: 1px solid rgba(95, 224, 216, .16);
    box-shadow: 0 -10px 30px rgba(0, 0, 0, .35);
    grid-template-columns: repeat(4, 1fr);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: rgba(160, 174, 200, .72);
    font-size: 11px;
    font-weight: 500;
    text-align: center;
    transition: color .2s var(--ease), background .2s var(--ease);
  }
  .tab-item .tab-ico {
    width: 22px;
    height: 22px;
  }
  .tab-item.active {
    color: var(--cyber);
    text-shadow: 0 0 12px rgba(95, 224, 216, .35);
  }
  .tab-item.active .tab-ico {
    filter: drop-shadow(0 0 6px rgba(95, 224, 216, .8));
  }
  .tab-item:active { transform: scale(.96); }
  @media (max-width: 767px) {
    .mobile-tabbar { display: grid; }
  }

  /* Shared section */
  .section { padding: 96px 0; }
  .section-soft { background: rgba(13, 21, 38, .4); }
  .section-surface { background: rgba(16, 26, 46, .35); }
  .section--tight { padding: 72px 0; }
  @media (max-width: 768px) {
    .section { padding: 72px 0; }
    .section--tight { padding: 52px 0; }
  }
  @media (max-width: 520px) {
    .section { padding: 56px 0; }
  }

  .section-head {
    max-width: 860px;
    margin-bottom: 48px;
  }
  .kicker-line {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--cyber);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }
  .kicker-line::before {
    content: "";
    width: 22px;
    height: 1px;
    background: var(--cyber);
    box-shadow: 0 0 8px var(--cyber);
  }
  .section-title {
    margin: 0;
    font-size: clamp(1.8rem, 3.4vw, 2.6rem);
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: .01em;
    color: #F4F8FF;
  }
  .section-desc {
    margin-top: 18px;
    max-width: 720px;
    color: var(--text-soft);
    font-size: 15px;
  }
  @media (max-width: 640px) {
    .section-head { margin-bottom: 32px; }
    .section-desc { font-size: 14px; }
  }

  /* Buttons */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 22px;
    border-radius: 10px;
    border: 1px solid rgba(95, 224, 216, .78);
    background: var(--cyber);
    color: #062A2A;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 0 20px rgba(95, 224, 216, .22);
    transition: all .25s var(--ease);
    cursor: pointer;
  }
  .btn-primary:hover {
    background: #7BF3EB;
    box-shadow: 0 0 32px rgba(95, 224, 216, .35);
    transform: translateY(-2px);
    color: #031A1A;
  }
  .btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 0 12px rgba(95, 224, 216, .15);
  }
  .btn-line {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 22px;
    border: 1px solid rgba(155, 175, 220, .25);
    border-radius: 10px;
    background: rgba(16, 26, 46, .5);
    color: rgba(235, 240, 250, .9);
    font-weight: 600;
    font-size: 14px;
    transition: all .25s var(--ease);
  }
  .btn-line:hover {
    border-color: var(--line-strong);
    color: #fff;
    background: rgba(95, 224, 216, .07);
    box-shadow: 0 0 16px rgba(95, 224, 216, .1);
  }

  /* hero */
  .cat-hero {
    position: relative;
    overflow: hidden;
    background: var(--bg);
    min-height: 720px;
    display: grid;
    align-items: center;
    padding: 104px 0 84px;
    isolation: isolate;
  }
  .cat-hero .hero-bg {
    position: absolute;
    inset: 0;
    z-index: -3;
    background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
    opacity: .9;
  }
  .cat-hero .hero-overlay {
    position: absolute;
    inset: 0;
    z-index: -2;
    background:
      linear-gradient(90deg, rgba(10, 15, 30, .98) 5%, rgba(10, 15, 30, .84) 48%, rgba(13, 21, 38, .55) 100%),
      radial-gradient(circle at 88% 28%, rgba(12, 59, 63, .45), transparent 42%);
  }
  .hero-grid-line {
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image:
      linear-gradient(rgba(95, 224, 216, .04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(95, 224, 216, .04) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse at 70% 30%, #000 0%, transparent 75%);
  }
  .hero-copy { position: relative; z-index: 2; }
  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-mute);
    margin-bottom: 28px;
  }
  .breadcrumb a {
    transition: color .2s var(--ease);
  }
  .breadcrumb a:hover {
    color: var(--cyber);
  }
  .breadcrumb .sep { opacity: .5; }

  .hero-status-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
  }
  .status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid rgba(95, 224, 216, .34);
    background: rgba(10, 20, 34, .8);
    color: rgba(235, 240, 250, .9);
    font-size: 13px;
    font-weight: 600;
  }
  .status-pill::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--cyber);
    box-shadow: 0 0 0 0 rgba(95, 224, 216, .65);
    animation: pulse-dot 2.2s infinite;
  }
  .status-pill--purple {
    border-color: rgba(139, 128, 249, .38);
    color: #d9d7ff;
  }
  .status-pill--purple::before {
    background: var(--orchid);
    box-shadow: 0 0 0 0 rgba(139, 128, 249, .6);
    animation: pulse-dot 2.6s infinite;
  }
  .hero-title {
    margin: 0 0 24px;
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    line-height: 1.14;
    font-weight: 900;
    letter-spacing: .015em;
    color: #fff;
  }
  .hero-title .accent {
    background: linear-gradient(120deg, var(--cyber), #A9F2EC);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .hero-lead {
    max-width: 640px;
    margin: 0 0 30px;
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-main);
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }

  .hero-panel {
    position: relative;
    z-index: 3;
    border: 1px solid rgba(95, 224, 216, .2);
    border-radius: 20px;
    background: rgba(13, 23, 42, .62);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 24px;
    box-shadow: var(--shadow-mid), 0 0 40px rgba(12, 59, 63, .25);
    margin-top: 24px;
  }
  .hero-panel::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: linear-gradient(140deg, rgba(95, 224, 216, .08), transparent 35%, rgba(139, 128, 249, .05));
    pointer-events: none;
  }
  .panel-title {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
  }
  .panel-title .code {
    color: var(--cyber);
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: .1em;
  }
  .panel-title .tag-wait {
    color: var(--citrine);
    font-size: 13px;
    font-weight: 600;
  }
  .next-session {
    border-top: 1px solid rgba(255, 255, 255, .09);
    padding-top: 18px;
  }
  .next-session h3 {
    margin: 0 0 6px;
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
  }
  .next-session p {
    margin: 0 0 14px;
    color: var(--text-soft);
    font-size: 14px;
  }
  .panel-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    margin-bottom: 18px;
    color: var(--text-mute);
    font-size: 13px;
  }
  .panel-meta span { display: inline-flex; align-items: center; gap: 6px; }
  .hero-panel .btn-primary { width: 100%; justify-content: center; }
  .panel-footer {
    margin-top: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-mute);
    font-size: 12px;
  }
  .panel-footer .small-num {
    color: var(--cyber);
    font-family: var(--font-mono);
  }

  @media (max-width: 767px) {
    .cat-hero { min-height: auto; padding: 72px 0 54px; }
    .hero-layout { display: block; }
    .hero-panel { margin-top: 40px; padding: 20px; }
    .hero-panel .btn-primary { width: 100%; }
  }

  /* content visual cards */
  .content-grid {
    display: grid;
    gap: 24px;
  }
  .visual-card {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: 16px;
    overflow: hidden;
    transition: all .35s var(--ease);
  }
  .visual-card:hover {
    border-color: rgba(95, 224, 216, .34);
    box-shadow: 0 18px 40px rgba(0, 10, 25, .42), 0 0 0 1px rgba(95, 224, 216, .05);
    transform: translateY(-3px);
  }
  .visual-card--wide {
    grid-template-columns: 1.08fr 1fr;
  }
  .visual-media {
    position: relative;
    min-height: 320px;
    overflow: hidden;
  }
  .visual-media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s var(--ease);
  }
  .visual-card:hover .visual-media img { transform: scale(1.04); }
  .visual-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 35%, rgba(10, 15, 30, .72) 98%);
  }
  .visual-body {
    padding: 34px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .card-order {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--cyber);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .14em;
    margin-bottom: 14px;
  }
  .card-order strong { color: var(--citrine); font-weight: 800; }
  .visual-body h3 {
    margin: 0 0 12px;
    font-size: clamp(1.3rem, 2vw, 1.75rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: .01em;
  }
  .visual-body p {
    color: var(--text-soft);
    margin: 0 0 20px;
    line-height: 1.85;
  }
  .feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .mini-tag {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 999px;
    border: 1px solid rgba(110, 160, 255, .18);
    color: var(--text-soft);
    font-size: 12px;
  }
  .mini-tag--purple {
    border-color: rgba(139, 128, 249, .26);
    color: #c9c5ff;
  }
  .mini-tag--yellow {
    border-color: rgba(255, 216, 77, .24);
    color: #ffdf85;
  }

  .duo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .duo-grid .visual-card {
    grid-template-columns: 1fr;
    min-height: 480px;
  }
  .duo-grid .visual-media { min-height: 220px; }
  .duo-grid .visual-media img { position: absolute; }
  .duo-grid .visual-media::after {
    background: linear-gradient(180deg, transparent 40%, rgba(10, 15, 30, .85) 100%);
  }
  .duo-grid .visual-body { padding: 28px; }

  @media (max-width: 992px) {
    .visual-card,
    .visual-card--wide { grid-template-columns: 1fr; }
    .visual-media { min-height: 240px; }
    .visual-media img { position: absolute; }
    .visual-media::after { background: linear-gradient(180deg, transparent 40%, rgba(10, 15, 30, .65) 100%); }
    .duo-grid { grid-template-columns: 1fr; min-height: auto; }
    .duo-grid .visual-card { min-height: 0; }
  }
  @media (max-width: 640px) {
    .visual-body { padding: 22px; }
    .visual-media { min-height: 190px; }
  }

  /* split text / scene */
  .split-scene {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 60px;
    align-items: center;
  }
  .scene-list {
    display: grid;
    gap: 0;
    margin-top: 28px;
    border-top: 1px solid var(--line);
  }
  .scene-item {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 16px;
    padding: 18px 4px;
    border-bottom: 1px solid var(--line);
    transition: border-color .25s var(--ease), background .25s var(--ease);
  }
  .scene-item:hover {
    border-left: 2px solid var(--cyber);
    padding-left: 12px;
    margin-left: -14px;
    background: rgba(95, 224, 216, .03);
  }
  .scene-num {
    color: var(--cyber);
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: .08em;
  }
  .scene-item h3 {
    color: #fff;
    font-size: 1.02rem;
    margin: 0 0 4px;
    font-weight: 700;
  }
  .scene-item p {
    margin: 0;
    color: var(--text-mute);
    font-size: 13px;
    line-height: 1.7;
  }
  .scene-media {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(95, 224, 216, .16);
    box-shadow: var(--shadow-mid);
  }
  .scene-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3.2; }
  .scene-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(10, 15, 30, .08), rgba(10, 15, 30, .25) 90%);
  }
  .media-caption {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 18px;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: #fff;
    font-size: 13px;
    background: rgba(10, 15, 30, .5);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(95, 224, 216, .12);
    padding: 10px 14px;
    border-radius: 12px;
  }
  .media-caption span:last-child {
    color: var(--cyber);
    font-family: var(--font-mono);
    font-size: 12px;
  }
  @media (max-width: 992px) {
    .split-scene { grid-template-columns: 1fr; gap: 32px; }
  }

  /* steps */
  .steps-band {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: step;
  }
  .step-item {
    position: relative;
    background: rgba(16, 26, 46, .72);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 28px 22px;
    transition: all .3s var(--ease);
    overflow: hidden;
  }
  .step-item::before {
    content: counter(step, decimal-leading-zero);
    counter-increment: step;
    display: block;
    font-family: var(--font-mono);
    font-weight: 800;
    font-size: 1.45rem;
    color: transparent;
    -webkit-text-stroke: 1px var(--cyber);
    margin-bottom: 20px;
  }
  .step-item:hover {
    border-color: var(--line-strong);
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(0, 15, 30, .38);
  }
  .step-item h3 { color: #fff; font-size: 1.02rem; margin: 0 0 8px; }
  .step-item p { color: var(--text-mute); font-size: 13px; margin: 0; line-height: 1.75; }
  .step-line {
    position: absolute;
    top: 30px;
    right: -14px;
    width: 28px;
    height: 1px;
    background: rgba(95, 224, 216, .3);
    display: none;
  }
  @media (max-width: 1080px) {
    .steps-band { grid-template-columns: repeat(2, 1fr); }
  }
  @media (max-width: 640px) {
    .steps-band { grid-template-columns: 1fr; }
    .step-item { padding: 22px 18px; }
  }

  /* stats */
  .data-band {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: 20px;
    overflow: hidden;
  }
  .data-cell {
    padding: 36px 18px 36px 28px;
    border-left: 1px solid var(--line);
    background:
      linear-gradient(180deg, rgba(95, 224, 216, .04), transparent 70%);
  }
  .data-cell:first-child {
    border-left: 0;
    background:
      linear-gradient(180deg, rgba(95, 224, 216, .05), transparent 70%);
  }
  .data-cell .number {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--cyber);
    letter-spacing: .01em;
  }
  .data-cell .label {
    margin-top: 8px;
    color: var(--text-soft);
    font-size: 13px;
  }
  @media (max-width: 900px) {
    .data-band { grid-template-columns: repeat(2, 1fr); }
    .data-cell { border-top: 1px solid var(--line); }
    .data-cell:nth-child(-n+2) { border-top: 0; }
    .data-cell:nth-child(odd) { border-left: 0; }
  }
  @media (max-width: 520px) {
    .data-band { grid-template-columns: 1fr 1fr; }
    .data-cell { padding: 24px 16px; }
  }

  /* audience */
  .audience-row {
    display: grid;
    grid-template-columns: 48px 1fr auto;
    align-items: center;
    gap: 18px;
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
    transition: padding .25s var(--ease), background .25s var(--ease);
  }
  .audience-row:last-child { border-bottom: 0; }
  .audience-row:hover {
    padding-left: 18px;
    background: rgba(95, 224, 216, .025);
  }
  .audience-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    border: 1px solid rgba(95, 224, 216, .2);
    color: var(--cyber);
    background: rgba(95, 224, 216, .06);
  }
  .audience-copy h3 { color: #fff; margin: 0 0 4px; font-size: 1.03rem; font-weight: 700; }
  .audience-copy p { margin: 0; color: var(--text-mute); font-size: 14px; }
  .audience-copy .aud-link { color: var(--cyber); font-size: 14px; font-weight: 600; margin-top: 8px; display: inline-flex; align-items: center; gap: 6px; }

  @media (max-width: 640px) {
    .audience-row { grid-template-columns: 42px 1fr; gap: 12px; }
    .audience-icon { width: 42px; height: 42px; }
    .audience-copy p { font-size: 13px; }
  }

  /* agenda rows */
  .agenda-panel {
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    overflow: hidden;
  }
  .agenda-row {
    display: grid;
    grid-template-columns: 150px 1fr auto;
    gap: 24px;
    align-items: center;
    padding: 24px 28px;
    border-bottom: 1px solid var(--line);
    transition: all .25s var(--ease);
  }
  .agenda-row:last-child { border-bottom: 0; }
  .agenda-row:hover {
    background: rgba(95, 224, 216, .03);
    box-shadow: inset 3px 0 0 var(--cyber);
  }
  .agenda-date {
    font-family: var(--font-mono);
    color: var(--cyber);
    font-size: 14px;
    letter-spacing: .04em;
  }
  .agenda-date .dot {
    color: var(--citrine);
  }
  .agenda-tag {
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(139, 128, 249, .4);
    color: #cbc8ff;
  }
  .agenda-title h3 { font-size: 1.05rem; margin: 0 0 4px; color: #fff; }
  .agenda-title p { color: var(--text-mute); font-size: 13px; margin: 0; }
  .agenda-state { text-align: right; white-space: nowrap; color: var(--text-soft); font-size: 13px; }
  .agenda-state small { display: block; color: var(--citrine); font-size: 12px; margin-bottom: 8px; }
  @media (max-width: 860px) {
    .agenda-row { grid-template-columns: 1fr; gap: 12px; padding: 20px; }
    .agenda-state { text-align: left; margin-top: 4px; }
  }

  /* FAQ */
  .faq-wrap {
    display: grid;
    gap: 14px;
  }
  .faq-item {
    background: rgba(13, 21, 38, .75);
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    transition: border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
  }
  .faq-item[open] {
    background: rgba(16, 26, 46, .9);
    border-color: rgba(95, 224, 216, .34);
    box-shadow: 0 12px 30px rgba(0, 10, 25, .3);
  }
  .faq-item summary {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 56px;
    padding: 16px 22px;
    cursor: pointer;
    color: rgba(235, 240, 250, .9);
    font-weight: 700;
    font-size: 15px;
    transition: color .2s var(--ease);
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary:hover { color: var(--cyber); }
  .faq-icon {
    position: relative;
    flex: 0 0 20px;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid rgba(95, 224, 216, .36);
  }
  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--cyber);
    border-radius: 2px;
    transition: transform .3s var(--ease);
  }
  .faq-icon::before { width: 10px; height: 2px; left: 4px; top: 8px; }
  .faq-icon::after { width: 2px; height: 10px; left: 8px; top: 4px; }
  .faq-item[open] .faq-icon::after { transform: rotate(90deg); }
  .faq-answer {
    padding: 0 22px 20px 22px;
    color: var(--text-soft);
    font-size: 14px;
    line-height: 1.85;
  }

  /* cta subscribe */
  .cta-zone {
    background: var(--bg-3);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    position: relative;
    overflow: hidden;
  }
  .cta-zone::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse at 18% 0%, rgba(12, 59, 63, .7), transparent 50%),
      radial-gradient(ellipse at 100% 100%, rgba(95, 224, 216, .08), transparent 40%);
  }
  .cta-panel {
    position: relative;
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 48px;
    align-items: center;
    background: rgba(13, 23, 42, .5);
    border: 1px solid rgba(95, 224, 216, .18);
    border-radius: 20px;
    padding: 54px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow-low), 0 0 24px rgba(95, 224, 216, .06);
  }
  .cta-panel h2 {
    color: #fff;
    font-size: clamp(1.4rem, 2.6vw, 1.9rem);
    margin: 0 0 12px;
    font-weight: 800;
  }
  .cta-panel p {
    color: var(--text-soft);
    max-width: 600px;
    margin: 0;
    font-size: 15px;
  }
  .subscribe-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    margin-top: 18px;
  }
  .field-input {
    width: 100%;
    background: #101A2E;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 10px;
    padding: 12px 16px;
    color: rgba(235, 240, 250, .92);
    font-size: 14px;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
  }
  .field-input::placeholder { color: var(--text-placeholder); }
  .field-input:focus {
    outline: none;
    border-color: var(--cyber);
    box-shadow: 0 0 0 3px rgba(95, 224, 216, .12), 0 0 16px rgba(95, 224, 216, .08);
  }
  .form-note {
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-mute);
  }
  @media (max-width: 992px) {
    .cta-panel { grid-template-columns: 1fr; padding: 40px 28px; gap: 28px; }
  }
  @media (max-width: 640px) {
    .subscribe-form { grid-template-columns: 1fr; }
  }

  /* footer */
  .site-footer {
    position: relative;
    background: rgba(8, 12, 24, .92);
    border-top: 1px solid rgba(95, 224, 216, .1);
    padding: 72px 0 30px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1.4fr;
    gap: 48px;
    margin-bottom: 56px;
    align-items: start;
  }
  .footer-brand .brand-logo { margin-bottom: 18px; }
  .footer-desc {
    color: var(--text-mute);
    font-size: 14px;
    line-height: 1.85;
    max-width: 420px;
    margin: 0 0 20px;
  }
  .footer-col-title {
    color: #F3F6FF;
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 18px;
    letter-spacing: .04em;
  }
  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .footer-links a,
  .footer-links span,
  .footer-contact span {
    color: var(--text-soft);
    font-size: 14px;
    transition: color .2s var(--ease);
    display: inline-flex;
    gap: 8px;
    align-items: center;
  }
  .footer-links a:hover,
  .footer-contact span:hover { color: var(--cyber); }
  .footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .footer-contact svg { flex: 0 0 18px; width: 18px; height: 18px; color: var(--cyber); }
  .footer-bottom {
    border-top: 1px solid rgba(110, 160, 255, .12);
    padding-top: 22px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 16px;
    color: var(--text-mute);
    font-size: 12px;
  }
  @media (max-width: 992px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  }
  @media (max-width: 640px) {
    .footer-grid { grid-template-columns: 1fr; gap: 30px; margin-bottom: 30px; }
    .site-footer { padding-top: 48px; }
    .footer-bottom { display: block; }
    .footer-bottom span { display: block; margin-top: 6px; }
  }

  /* section helpers */
  .section-intro-layout {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 40px;
  }
  @media (max-width: 768px){
    .section-intro-layout { display: block; }
  }
  .more-link {
    color: var(--cyber);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    margin-top: 12px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap .25s var(--ease), color .25s;
  }
  .more-link:hover { gap: 12px; color: #8ff1ec; }