/* roulang page: index */
:root {
        --bg-0: #0C0B0A;
        --bg-1: #141210;
        --bg-2: #1C1916;
        --surface: #221E1A;
        --line: rgba(247, 242, 230, .10);
        --line-strong: rgba(247, 242, 230, .26);
        --text-hi: #F4EEE0;
        --text-mid: #B7AC9B;
        --text-low: #83786A;
        --accent: #D6A24E;
        --accent-hover: #E7BC73;
        --accent-contrast: #1A140A;
        --success: #4FAE7B;
        --warning: #D97A3C;
        --radius-sm: 6px;
        --radius-md: 8px;
        --radius-lg: 12px;
        --shadow: 0 1px 2px rgba(0, 0, 0, .2);
        --shadow-hover: 0 18px 50px rgba(0, 0, 0, .5);
        --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        --transition: all .25s cubic-bezier(.4, 0, .2, 1);
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font);
        background: var(--bg-0);
        color: var(--text-hi);
        line-height: 1.75;
        font-size: 1rem;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }
    a {
        color: var(--text-hi);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--accent);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button,
    input {
        font-family: inherit;
        font-size: inherit;
        border: none;
        background: none;
        color: inherit;
        outline: none;
    }
    ul,
    ol {
        list-style: none;
    }
    .grid-container {
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 20px;
        padding-right: 20px;
        width: 100%;
    }
    .section {
        padding: 88px 0;
    }

    /* ===== Header ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 68px;
        background: rgba(12, 11, 10, .82);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--line);
        z-index: 1000;
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 68px;
    }
    .brand {
        font-size: 1.45rem;
        font-weight: 800;
        letter-spacing: -0.01em;
        color: var(--text-hi);
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .brand i {
        color: var(--accent);
        font-size: 1.3rem;
    }
    .brand:hover {
        color: var(--accent-hover);
    }
    .main-nav ul {
        display: flex;
        gap: 30px;
        align-items: center;
    }
    .main-nav a {
        font-size: .93rem;
        font-weight: 500;
        color: var(--text-mid);
        position: relative;
        padding: 6px 2px;
        letter-spacing: .02em;
    }
    .main-nav a::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: -2px;
        width: 100%;
        height: 2px;
        background: var(--accent);
        border-radius: 2px;
        transform: scaleX(0);
        transform-origin: left;
        transition: var(--transition);
    }
    .main-nav a:hover {
        color: var(--text-hi);
    }
    .main-nav a:hover::after {
        transform: scaleX(1);
    }
    .main-nav li.active a {
        color: var(--text-hi);
    }
    .main-nav li.active a::after {
        transform: scaleX(1);
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 14px;
    }
    .channel-btn {
        background: var(--bg-2);
        border: 1px solid var(--line);
        color: var(--text-mid);
        font-size: .87rem;
        font-weight: 500;
        padding: 8px 18px;
        border-radius: var(--radius-sm);
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition);
    }
    .channel-btn:hover {
        border-color: var(--accent);
        color: var(--accent-hover);
    }
    .channel-btn i {
        font-size: .75rem;
    }
    .hamburger {
        display: none;
        font-size: 1.35rem;
        color: var(--text-hi);
        cursor: pointer;
        padding: 6px;
        border-radius: var(--radius-sm);
        transition: var(--transition);
    }
    .hamburger:hover {
        background: var(--bg-2);
    }

    /* Mega Panel */
    .mega-panel {
        position: fixed;
        top: 68px;
        right: 20px;
        width: 720px;
        max-width: calc(100vw - 40px);
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        box-shadow: 0 24px 60px rgba(0, 0, 0, .6);
        padding: 28px 32px;
        display: none;
        z-index: 999;
    }
    .mega-panel.show {
        display: block;
    }
    .mega-grid {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 32px;
    }
    .mega-col h4 {
        font-size: .78rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: .08em;
        color: var(--text-low);
        margin-bottom: 16px;
    }
    .mega-col ul li {
        margin-bottom: 10px;
    }
    .mega-col ul a {
        font-size: .9rem;
        color: var(--text-mid);
        transition: var(--transition);
    }
    .mega-col ul a:hover {
        color: var(--accent);
        padding-left: 4px;
    }
    .mega-card {
        display: flex;
        gap: 12px;
        align-items: center;
        padding: 10px;
        border-radius: var(--radius-md);
        transition: var(--transition);
        margin-bottom: 8px;
    }
    .mega-card:hover {
        background: var(--bg-2);
    }
    .mega-card img {
        width: 56px;
        height: 40px;
        object-fit: cover;
        border-radius: 4px;
        flex-shrink: 0;
    }
    .mega-card .mega-card-title {
        font-size: .85rem;
        color: var(--text-hi);
        font-weight: 500;
        line-height: 1.3;
    }
    .mega-card .mega-card-tag {
        font-size: .72rem;
        color: var(--text-low);
        margin-top: 2px;
    }
    .mega-promo {
        background: var(--bg-2);
        border-radius: var(--radius-md);
        padding: 18px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
        border: 1px solid var(--line);
        transition: var(--transition);
    }
    .mega-promo:hover {
        border-color: var(--accent);
    }
    .mega-promo .promo-title {
        font-size: .95rem;
        font-weight: 700;
        color: var(--text-hi);
    }
    .mega-promo .promo-text {
        font-size: .82rem;
        color: var(--text-mid);
        line-height: 1.5;
    }
    .mega-promo .btn {
        margin-top: 4px;
    }

    /* ===== Buttons ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: .8rem 1.8rem;
        font-size: .95rem;
        font-weight: 600;
        border-radius: var(--radius-sm);
        cursor: pointer;
        transition: var(--transition);
        border: 1px solid transparent;
        line-height: 1.2;
    }
    .btn-primary {
        background: var(--accent);
        color: var(--accent-contrast);
    }
    .btn-primary:hover {
        background: var(--accent-hover);
        color: var(--accent-contrast);
        box-shadow: 0 8px 30px rgba(214, 162, 78, .25);
        transform: translateY(-2px);
    }
    .btn-outline {
        background: transparent;
        border-color: var(--line-strong);
        color: var(--text-hi);
    }
    .btn-outline:hover {
        border-color: var(--accent);
        color: var(--accent);
    }
    .btn:active {
        transform: scale(.98);
    }
    .btn:focus-visible,
    a:focus-visible,
    button:focus-visible {
        outline: none;
        box-shadow: 0 0 0 3px rgba(214, 162, 78, .4);
    }
    .btn-sm {
        padding: .5rem 1.2rem;
        font-size: .85rem;
    }

    /* ===== Badges ===== */
    .badge {
        display: inline-flex;
        align-items: center;
        padding: .2em .7em;
        font-size: .75rem;
        font-weight: 600;
        border-radius: 999px;
        line-height: 1.5;
    }
    .badge-accent {
        background: rgba(214, 162, 78, .12);
        color: var(--accent);
    }
    .badge-success {
        background: rgba(79, 174, 123, .12);
        color: var(--success);
    }
    .badge-warning {
        background: rgba(217, 122, 60, .12);
        color: var(--warning);
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        min-height: 92vh;
        display: flex;
        align-items: center;
        overflow: hidden;
        padding: 120px 0 80px;
    }
    .hero-bg {
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-1.jpg');
        background-size: cover;
        background-position: center;
        z-index: 0;
    }
    .hero-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, var(--bg-0) 10%, transparent 55%);
        z-index: 1;
    }
    .hero-content {
        position: relative;
        z-index: 2;
        max-width: 760px;
        margin-left: 0;
    }
    .hero-badges {
        display: flex;
        gap: 12px;
        margin-bottom: 22px;
        flex-wrap: wrap;
    }
    .hero h1 {
        font-size: clamp(2.4rem, 6vw, 4.2rem);
        font-weight: 800;
        line-height: 1.08;
        letter-spacing: -0.01em;
        color: var(--text-hi);
        margin-bottom: 22px;
        animation: heroFadeIn .7s ease-out both;
    }
    .hero-sub {
        font-size: 1.1rem;
        color: var(--text-mid);
        line-height: 1.7;
        max-width: 480px;
        margin-bottom: 32px;
        animation: heroFadeIn .7s .1s ease-out both;
    }
    .hero-actions {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
        align-items: center;
        margin-bottom: 36px;
        animation: heroFadeIn .7s .2s ease-out both;
    }
    .hero-data {
        display: flex;
        gap: 32px;
        flex-wrap: wrap;
        border-top: 1px solid var(--line);
        padding-top: 24px;
        animation: heroFadeIn .7s .3s ease-out both;
    }
    .hero-data span {
        font-size: .85rem;
        color: var(--text-low);
        display: flex;
        align-items: center;
        gap: 8px;
        font-variant-numeric: tabular-nums;
    }
    .hero-data i {
        color: var(--accent);
        font-size: .9rem;
    }
    @keyframes heroFadeIn {
        from {
            opacity: 0;
            transform: translateY(24px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* ===== Section Common ===== */
    .section-header {
        margin-bottom: 52px;
        max-width: 640px;
    }
    .section-header.center {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }
    .section-header h2 {
        font-size: clamp(1.7rem, 4vw, 2.8rem);
        font-weight: 700;
        line-height: 1.15;
        color: var(--text-hi);
        margin-bottom: 16px;
    }
    .section-header p {
        font-size: .95rem;
        color: var(--text-mid);
        line-height: 1.7;
    }
    .section-header .tag {
        display: inline-block;
        font-size: .78rem;
        font-weight: 600;
        color: var(--accent);
        letter-spacing: .06em;
        text-transform: uppercase;
        margin-bottom: 12px;
    }

    /* ===== Features ===== */
    .features {
        background: var(--bg-1);
        padding: 88px 0;
    }
    .feature-card {
        background: var(--bg-2);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        padding: 36px 30px;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
        height: 100%;
    }
    .feature-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 2px;
        background: var(--accent);
        transform: scaleX(0);
        transform-origin: left;
        transition: var(--transition);
    }
    .feature-card:hover {
        background: var(--surface);
        border-color: var(--line-strong);
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }
    .feature-card:hover::before {
        transform: scaleX(1);
    }
    .feature-icon {
        width: 48px;
        height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(214, 162, 78, .12);
        border-radius: var(--radius-md);
        margin-bottom: 20px;
        font-size: 1.2rem;
        color: var(--accent);
    }
    .feature-card h3 {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 12px;
    }
    .feature-card p {
        font-size: .9rem;
        color: var(--text-mid);
        line-height: 1.65;
    }
    .feature-card .feature-line {
        width: 40px;
        height: 2px;
        background: var(--accent);
        border-radius: 2px;
        margin-top: 18px;
        opacity: .6;
    }

    /* ===== Showcase ===== */
    .showcase {
        background: var(--bg-0);
        padding: 88px 0;
    }
    .showcase-inner {
        display: grid;
        grid-template-columns: 1fr 1.2fr;
        gap: 64px;
        align-items: center;
    }
    .showcase-left h2 {
        font-size: clamp(1.7rem, 3.5vw, 2.4rem);
        font-weight: 700;
        line-height: 1.2;
        margin-bottom: 24px;
    }
    .showcase-list {
        margin-bottom: 24px;
    }
    .showcase-list li {
        display: flex;
        gap: 14px;
        align-items: flex-start;
        padding: 12px 0;
        border-bottom: 1px solid var(--line);
        font-size: .95rem;
        color: var(--text-mid);
    }
    .showcase-list li i {
        color: var(--accent);
        margin-top: 4px;
        font-size: .9rem;
        flex-shrink: 0;
    }
    .showcase-list li strong {
        color: var(--text-hi);
        font-weight: 600;
        margin-right: 4px;
    }
    .showcase-right {
        position: relative;
    }
    .showcase-preview {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--line);
        box-shadow: var(--shadow-hover);
    }
    .showcase-preview img {
        width: 100%;
        aspect-ratio: 16 / 10;
        object-fit: cover;
        transition: transform .5s ease;
    }
    .showcase-preview:hover img {
        transform: scale(1.04);
    }
    .showcase-badges {
        position: absolute;
        top: 16px;
        left: 16px;
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }
    .showcase-badges .badge {
        background: rgba(0, 0, 0, .55);
        backdrop-filter: blur(4px);
        color: var(--text-hi);
        font-size: .75rem;
        font-weight: 600;
        border: 1px solid rgba(255, 255, 255, .12);
    }
    .showcase-badges .badge i {
        margin-right: 4px;
        font-size: .7rem;
        color: var(--accent);
    }
    .showcase-tabs {
        display: flex;
        gap: 0;
        margin-top: 16px;
        border-bottom: 1px solid var(--line);
    }
    .showcase-tabs .tab-item {
        padding: 12px 24px;
        font-size: .9rem;
        font-weight: 500;
        color: var(--text-mid);
        cursor: pointer;
        border-bottom: 2px solid transparent;
        margin-bottom: -1px;
        transition: var(--transition);
    }
    .showcase-tabs .tab-item.active {
        color: var(--accent);
        border-bottom-color: var(--accent);
    }
    .showcase-tabs .tab-item:hover {
        color: var(--text-hi);
    }

    /* ===== Social Proof ===== */
    .social-proof {
        background: var(--bg-1);
        padding: 88px 0;
    }
    .proof-data {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        margin-bottom: 56px;
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        padding: 36px 30px;
        background: rgba(255, 255, 255, .02);
    }
    .proof-data .data-item {
        text-align: center;
    }
    .proof-data .data-num {
        font-size: 2.2rem;
        font-weight: 800;
        color: var(--accent);
        font-variant-numeric: tabular-nums;
        line-height: 1.2;
    }
    .proof-data .data-label {
        font-size: .82rem;
        color: var(--text-low);
        margin-top: 6px;
    }
    .proof-cards {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .proof-card {
        background: var(--bg-2);
        border-radius: var(--radius-md);
        padding: 32px 28px;
        border-top: 2px solid var(--accent);
        transition: var(--transition);
        position: relative;
    }
    .proof-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
        border-color: var(--line-strong);
    }
    .proof-card .quote-icon {
        font-size: 1.6rem;
        color: var(--accent);
        opacity: .5;
        margin-bottom: 12px;
    }
    .proof-card p {
        font-size: .93rem;
        color: var(--text-mid);
        line-height: 1.6;
        margin-bottom: 18px;
    }
    .proof-card .user {
        font-size: .85rem;
        color: var(--text-low);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .proof-card .user i {
        color: var(--accent);
        font-size: .8rem;
    }

    /* ===== News ===== */
    .news {
        background: var(--bg-0);
        padding: 88px 0;
    }
    .news-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr;
        gap: 48px;
    }
    .news-list li {
        border-bottom: 1px solid var(--line);
        transition: var(--transition);
    }
    .news-list li:last-child {
        border-bottom: none;
    }
    .news-list a {
        display: block;
        padding: 18px 10px;
        font-size: .95rem;
        color: var(--text-mid);
        transition: var(--transition);
        line-height: 1.5;
    }
    .news-list a:hover {
        color: var(--accent);
        background: var(--bg-2);
        padding-left: 16px;
        border-radius: var(--radius-sm);
    }
    .news-list .news-tag {
        font-size: .75rem;
        color: var(--accent);
        margin-right: 10px;
        font-weight: 600;
        flex-shrink: 0;
    }
    .news-list a {
        display: flex;
        align-items: center;
    }
    .rank-card {
        background: var(--bg-2);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        padding: 28px 24px;
    }
    .rank-card h3 {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 20px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .rank-card h3 i {
        color: var(--accent);
        font-size: .95rem;
    }
    .rank-list li {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 14px 10px;
        border-bottom: 1px solid var(--line);
        transition: var(--transition);
        border-radius: var(--radius-sm);
    }
    .rank-list li:last-child {
        border-bottom: none;
    }
    .rank-list li:hover {
        background: var(--bg-1);
    }
    .rank-list .rank-num {
        width: 28px;
        font-size: .8rem;
        font-weight: 700;
        color: var(--text-low);
        font-variant-numeric: tabular-nums;
    }
    .rank-list li:nth-child(1) .rank-num,
    .rank-list li:nth-child(2) .rank-num,
    .rank-list li:nth-child(3) .rank-num {
        color: var(--accent);
    }
    .rank-list .rank-name {
        flex: 1;
        font-size: .9rem;
        color: var(--text-hi);
        font-weight: 500;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .rank-list .rank-score {
        font-size: .82rem;
        color: var(--accent);
        font-weight: 700;
        font-variant-numeric: tabular-nums;
    }

    /* ===== FAQ ===== */
    .faq {
        background: var(--bg-1);
        padding: 88px 0;
    }
    .faq-item {
        background: var(--bg-2);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover {
        border-color: var(--line-strong);
    }
    .faq-item.active {
        border-color: var(--accent);
    }
    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 24px;
        font-size: .95rem;
        font-weight: 600;
        color: var(--text-hi);
        cursor: pointer;
        text-align: left;
        transition: var(--transition);
    }
    .faq-question:hover {
        color: var(--accent);
    }
    .faq-question .faq-icon {
        font-size: 1rem;
        color: var(--accent);
        transition: transform .25s ease;
        flex-shrink: 0;
    }
    .faq-item.active .faq-icon {
        transform: rotate(45deg);
    }
    .faq-answer {
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition: max-height .35s ease, padding .3s ease;
    }
    .faq-item.active .faq-answer {
        padding: 0 24px 20px;
        max-height: 400px;
    }
    .faq-answer p {
        font-size: .9rem;
        color: var(--text-mid);
        line-height: 1.7;
    }

    /* ===== CTA Form ===== */
    .cta-section {
        background: var(--bg-0);
        padding: 88px 0;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: "";
        position: absolute;
        top: 50%;
        left: 50%;
        width: 600px;
        height: 600px;
        background: radial-gradient(circle, rgba(214, 162, 78, .10), transparent 70%);
        transform: translate(-50%, -50%);
        pointer-events: none;
    }
    .cta-inner {
        position: relative;
        z-index: 1;
        text-align: center;
        max-width: 560px;
        margin: 0 auto;
    }
    .cta-inner h2 {
        font-size: clamp(1.7rem, 4vw, 2.6rem);
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 16px;
    }
    .cta-inner p {
        color: var(--text-mid);
        font-size: .95rem;
        margin-bottom: 28px;
        line-height: 1.7;
    }
    .cta-form {
        display: flex;
        gap: 10px;
        max-width: 480px;
        margin: 0 auto;
        flex-wrap: wrap;
    }
    .cta-form input {
        flex: 1;
        min-width: 220px;
        background: var(--bg-2);
        border: 1px solid var(--line);
        border-radius: var(--radius-sm);
        padding: 14px 18px;
        font-size: .9rem;
        color: var(--text-hi);
        transition: var(--transition);
    }
    .cta-form input::placeholder {
        color: var(--text-low);
    }
    .cta-form input:focus {
        border-color: var(--accent);
        box-shadow: 0 0 0 3px rgba(214, 162, 78, .15);
    }
    .cta-form .btn {
        padding: 14px 28px;
        font-size: .92rem;
    }
    .cta-note {
        font-size: .78rem;
        color: var(--text-low);
        margin-top: 16px;
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--bg-0);
        border-top: 1px solid var(--line);
        padding: 56px 0 96px;
    }
    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.2rem;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 10px;
    }
    .footer-brand i {
        color: var(--accent);
    }
    .footer-desc {
        font-size: .88rem;
        color: var(--text-low);
        max-width: 320px;
        line-height: 1.6;
        margin-bottom: 24px;
    }
    .footer-links {
        display: flex;
        gap: 24px;
        flex-wrap: wrap;
        margin-bottom: 24px;
    }
    .footer-links a {
        font-size: .85rem;
        color: var(--text-mid);
        transition: var(--transition);
    }
    .footer-links a:hover {
        color: var(--accent);
    }
    .footer-copy {
        font-size: .8rem;
        color: var(--text-low);
        border-top: 1px solid var(--line);
        padding-top: 20px;
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
    }

    /* ===== Fixed Bar ===== */
    .fixed-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 60px;
        background: var(--bg-1);
        border-top: 1px solid var(--line-strong);
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 24px;
        z-index: 900;
        transform: translateY(100%);
        transition: transform .35s ease;
        box-shadow: 0 -8px 30px rgba(0, 0, 0, .4);
    }
    .fixed-bar.show {
        transform: translateY(0);
    }
    .fixed-bar .fb-text {
        font-size: .88rem;
        color: var(--text-hi);
        font-weight: 500;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .fixed-bar .fb-text i {
        color: var(--accent);
    }
    .fixed-bar .fb-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .fixed-bar .fb-close {
        color: var(--text-low);
        cursor: pointer;
        font-size: 1rem;
        padding: 6px;
        transition: var(--transition);
        border-radius: 50%;
        line-height: 1;
    }
    .fixed-bar .fb-close:hover {
        color: var(--text-hi);
        background: var(--bg-2);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .mega-panel {
            width: 640px;
        }
        .mega-grid {
            grid-template-columns: 1fr 1fr;
        }
        .mega-promo {
            grid-column: span 2;
        }
        .showcase-inner {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .news-grid {
            grid-template-columns: 1fr;
        }
        .proof-data {
            grid-template-columns: repeat(2, 1fr);
            gap: 30px 16px;
        }
        .proof-cards {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 768px) {
        .main-nav {
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: var(--bg-1);
            border-bottom: 1px solid var(--line);
            padding: 20px;
            display: none;
            flex-direction: column;
            z-index: 1001;
        }
        .main-nav.mobile-open {
            display: flex;
        }
        .main-nav ul {
            flex-direction: column;
            gap: 16px;
            width: 100%;
        }
        .main-nav ul li {
            width: 100%;
        }
        .main-nav ul a {
            display: block;
            font-size: 1rem;
            padding: 10px 0;
        }
        .hamburger {
            display: block;
        }
        .channel-btn {
            display: none;
        }
        .mega-panel {
            position: fixed;
            top: auto;
            bottom: 0;
            left: 0;
            right: 0;
            width: 100%;
            max-width: 100%;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            padding: 24px;
            max-height: 75vh;
            overflow-y: auto;
        }
        .mega-grid {
            grid-template-columns: 1fr;
        }
        .mega-promo {
            grid-column: auto;
        }
        .hero {
            min-height: auto;
            padding: 120px 0 60px;
        }
        .hero h1 {
            font-size: 2.2rem;
        }
        .hero-data {
            gap: 16px;
        }
        .section {
            padding: 64px 0;
        }
        .features {
            padding: 64px 0;
        }
        .showcase {
            padding: 64px 0;
        }
        .social-proof {
            padding: 64px 0;
        }
        .news {
            padding: 64px 0;
        }
        .faq {
            padding: 64px 0;
        }
        .cta-section {
            padding: 64px 0;
        }
    }
    @media (max-width: 640px) {
        .grid-container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .header-inner {
            padding: 0 4px;
        }
        .brand {
            font-size: 1.2rem;
        }
        .hero {
            padding: 100px 0 48px;
        }
        .hero h1 {
            font-size: 1.9rem;
        }
        .hero-sub {
            font-size: 1rem;
        }
        .hero-actions {
            flex-direction: column;
            align-items: stretch;
        }
        .hero-actions .btn {
            width: 100%;
        }
        .hero-data {
            flex-direction: column;
            gap: 10px;
        }
        .btn {
            width: 100%;
        }
        .feature-card {
            padding: 28px 22px;
        }
        .proof-data {
            grid-template-columns: 1fr 1fr;
            padding: 24px 16px;
        }
        .proof-data .data-num {
            font-size: 1.6rem;
        }
        .proof-cards {
            grid-template-columns: 1fr;
        }
        .news-list a {
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
            padding: 16px 6px;
        }
        .rank-list li {
            padding: 12px 8px;
        }
        .cta-form {
            flex-direction: column;
            gap: 12px;
        }
        .cta-form input,
        .cta-form .btn {
            width: 100%;
        }
        .footer-copy {
            flex-direction: column;
            gap: 6px;
        }
        .fixed-bar {
            padding: 0 16px;
            gap: 8px;
        }
        .fixed-bar .fb-text {
            font-size: .82rem;
        }
        .fixed-bar .fb-actions .btn {
            width: auto;
            padding: 8px 16px;
            font-size: .82rem;
        }
    }
    @media (max-width: 480px) {
        .brand span {
            display: inline;
        }
        .proof-data {
            grid-template-columns: 1fr 1fr;
        }
        .proof-data .data-item {
            padding: 6px;
        }
        .proof-data .data-num {
            font-size: 1.3rem;
        }
        .proof-data .data-label {
            font-size: .72rem;
        }
        .section-header h2 {
            font-size: 1.6rem;
        }
        .feature-card {
            padding: 24px 18px;
        }
        .faq-question {
            padding: 16px 18px;
            font-size: .88rem;
        }
        .faq-answer {
            padding: 0 18px;
        }
        .faq-item.active .faq-answer {
            padding: 0 18px 16px;
        }
    }

/* roulang page: category1 */
:root {
  --bg-0: #0C0B0A;
  --bg-1: #141210;
  --bg-2: #1C1916;
  --surface: #221E1A;
  --line: rgba(247, 242, 230, .10);
  --line-strong: rgba(247, 242, 230, .26);
  --text-hi: #F4EEE0;
  --text-mid: #B7AC9B;
  --text-low: #83786A;
  --accent: #D6A24E;
  --accent-hover: #E7BC73;
  --accent-contrast: #1A140A;
  --success: #4FAE7B;
  --warning: #D97A3C;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .2);
  --shadow-hover: 0 18px 50px rgba(0, 0, 0, .5);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --transition: all .25s cubic-bezier(.4, 0, .2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-0);
  color: var(--text-hi);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent);
}

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

button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  color: inherit;
  outline: none;
}

.grid-container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  width: 100%;
}

.section {
  padding: 88px 0;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 68px;
  background: rgba(12, 11, 10, .82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-hi);
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.brand i {
  color: var(--accent);
  font-size: 1.3rem;
}

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

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

.main-nav a {
  font-size: .93rem;
  font-weight: 500;
  color: var(--text-mid);
  position: relative;
  padding: 6px 2px;
  letter-spacing: .02em;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.main-nav a:hover {
  color: var(--text-hi);
}

.main-nav a:hover::after {
  transform: scaleX(1);
}

.main-nav li.active a {
  color: var(--text-hi);
}

.main-nav li.active a::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.channel-btn {
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--text-mid);
  font-size: .87rem;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.channel-btn:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
}

.channel-btn i {
  font-size: .9rem;
}

.channel-btn .chevron {
  font-size: .75rem;
}

.channel-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(214, 162, 78, .25);
}

.hamburger {
  display: none;
  font-size: 1.35rem;
  color: var(--text-hi);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.hamburger:hover {
  background: var(--bg-2);
}

.hamburger:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(214, 162, 78, .25);
}

/* ===== Mega Panel ===== */
.mega-panel {
  position: fixed;
  top: 68px;
  right: 20px;
  width: 720px;
  max-width: calc(100vw - 40px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .6);
  padding: 28px 32px;
  display: none;
  z-index: 999;
}

.mega-panel.show {
  display: block;
}

.mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
}

.mega-col h4 {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-low);
  margin-bottom: 16px;
}

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

.mega-col ul a {
  font-size: .9rem;
  color: var(--text-mid);
  transition: var(--transition);
}

.mega-col ul a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.mega-card {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px;
  border-radius: var(--radius-md);
  transition: var(--transition);
  margin-bottom: 8px;
}

.mega-card:hover {
  background: var(--bg-2);
}

.mega-card img {
  width: 56px;
  height: 40px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

.mega-card .mega-card-title {
  font-size: .85rem;
  color: var(--text-hi);
  font-weight: 500;
  line-height: 1.3;
  display: block;
}

.mega-card .mega-card-tag {
  font-size: .72rem;
  color: var(--text-low);
  margin-top: 2px;
  display: block;
}

.mega-promo {
  background: var(--bg-2);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.mega-promo h4 {
  margin-bottom: 0;
}

.mega-promo p {
  font-size: .86rem;
  color: var(--text-mid);
  line-height: 1.6;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: .8rem 1.8rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .95rem;
  line-height: 1;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-accent {
  background: var(--accent);
  color: var(--accent-contrast);
}

.btn-accent:hover {
  background: var(--accent-hover);
  color: var(--accent-contrast);
  box-shadow: 0 8px 30px rgba(214, 162, 78, .25);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text-hi);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
}

.btn-sm {
  padding: .55rem 1rem;
  font-size: .85rem;
}

.btn-lg {
  padding: 1rem 2.2rem;
  font-size: 1.05rem;
}

.btn-block {
  display: flex;
  width: 100%;
  justify-content: center;
}

.btn:active {
  transform: scale(.98);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(214, 162, 78, .3);
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 150px 0 76px;
  background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-0) 5%, rgba(12, 11, 10, .78) 60%, rgba(12, 11, 10, .5));
}

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

.page-hero-content {
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-block;
  padding: .3em 1em;
  border-radius: 999px;
  background: rgba(214, 162, 78, .12);
  color: var(--accent);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  margin-bottom: 20px;
}

.page-hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}

.hero-sub {
  font-size: 1.08rem;
  color: var(--text-mid);
  line-height: 1.75;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 38px;
  flex-wrap: wrap;
}

.stat-item strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.stat-item span {
  font-size: .85rem;
  color: var(--text-mid);
}

/* ===== Section Head ===== */
.section-head {
  margin-bottom: 34px;
}

.left-head {
  text-align: left;
}

.center-head {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  padding: .35em 1em;
  border-radius: 999px;
  background: rgba(214, 162, 78, .12);
  color: var(--accent);
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-mid);
  font-size: 1rem;
  max-width: 600px;
}

/* ===== Library Section ===== */
.library-section {
  padding: 88px 0;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.filter-tab {
  padding: .5rem 1.2rem;
  border-radius: 999px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--text-mid);
  font-size: .88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-tab:hover {
  border-color: var(--accent);
  color: var(--accent-hover);
}

.filter-tab.active {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}

.filter-tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(214, 162, 78, .3);
}

/* ===== Video Card Grid ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.video-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.video-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}

.video-media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-1);
}

.video-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.video-card:hover .video-media img {
  transform: scale(1.04);
}

.video-card-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.video-card-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.35;
}

.video-card-body h3 a {
  color: var(--text-hi);
}

.video-card-body h3 a:hover {
  color: var(--accent-hover);
}

.video-card-body p {
  font-size: .88rem;
  color: var(--text-mid);
  line-height: 1.65;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-badges {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: .2em .7em;
  font-size: .75rem;
  font-weight: 600;
  border-radius: 999px;
  line-height: 1.5;
  white-space: nowrap;
}

.badge-neutral {
  background: rgba(214, 162, 78, .12);
  color: var(--accent);
}

.badge-success {
  background: rgba(79, 174, 123, .12);
  color: var(--success);
}

.badge-warning {
  background: rgba(217, 122, 60, .12);
  color: var(--warning);
}

/* ===== Pager ===== */
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--text-mid);
  font-size: .9rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

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

.page-link.current {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}

.page-link.disabled {
  color: var(--text-low);
  cursor: not-allowed;
  pointer-events: none;
  opacity: .6;
}

.page-link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(214, 162, 78, .3);
}

/* ===== Sidebar ===== */
.rank-panel {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px;
  margin-bottom: 24px;
}

.rank-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.rank-head i {
  color: var(--accent);
  font-size: 1.1rem;
}

.rank-head h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}

.rank-list li {
  border-bottom: 1px solid var(--line);
}

.rank-list li:last-child {
  border-bottom: none;
}

.rank-list a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.rank-list a:hover {
  background: var(--bg-2);
  padding-left: 10px;
  color: var(--text-hi);
}

.rank-num {
  font-size: .85rem;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  width: 28px;
  flex-shrink: 0;
}

.rank-title {
  font-size: .92rem;
  color: var(--text-mid);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rank-list a:hover .rank-title {
  color: var(--text-hi);
}

.side-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px;
}

.side-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.side-card p {
  font-size: .9rem;
  color: var(--text-mid);
  margin-bottom: 18px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.accordion {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-item:not(:last-child) {
  border-bottom: 1px solid var(--line);
}

.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  color: var(--text-hi);
  font-size: 1rem;
  font-weight: 600;
  background: transparent !important;
  border: none !important;
  line-height: 1.4;
  transition: var(--transition);
}

.accordion-title:hover {
  color: var(--accent-hover);
  background: var(--bg-2) !important;
}

.accordion-title::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--accent);
  font-weight: 400;
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: 14px;
}

.accordion-item.is-active .accordion-title {
  color: var(--accent) !important;
}

.accordion-item.is-active .accordion-title::after {
  content: "−";
}

.accordion-content {
  padding: 0 24px 20px;
  color: var(--text-mid);
  font-size: .93rem;
  line-height: 1.75;
  background: transparent !important;
  border: none !important;
}

.accordion-content p {
  margin-bottom: 8px;
}

.accordion-content p:last-child {
  margin-bottom: 0;
}

.accordion-title:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(214, 162, 78, .3);
}

/* ===== CTA ===== */
.cta-section {
  background: var(--bg-1);
  padding: 88px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 560px;
  height: 560px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(214, 162, 78, .12), transparent 65%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  position: relative;
}

.cta-inner h2 {
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 14px;
}

.cta-inner p {
  color: var(--text-mid);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-0);
  border-top: 1px solid var(--line);
  padding: 56px 0 80px;
}

.footer-brand {
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-brand i {
  color: var(--accent);
}

.footer-desc {
  color: var(--text-mid);
  max-width: 520px;
  margin-bottom: 20px;
  font-size: .95rem;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 24px;
}

.footer-links a {
  color: var(--text-mid);
  font-size: .9rem;
}

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

.footer-copy {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  color: var(--text-low);
  font-size: .85rem;
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== Bottom Bar ===== */
.bottom-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 60px;
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  z-index: 900;
  transform: translateY(100%);
  opacity: 0;
  transition: var(--transition);
}

.bottom-bar.show {
  transform: translateY(0);
  opacity: 1;
}

.bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 16px;
}

.bar-text {
  font-size: .92rem;
  color: var(--text-hi);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.bar-close {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-low);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.bar-close:hover {
  color: var(--text-hi);
  background: var(--bg-2);
  border-color: var(--line);
}

.bar-close:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(214, 162, 78, .3);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 16px 20px;
    display: none;
    z-index: 998;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .5);
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .main-nav ul a {
    display: block;
    padding: 12px 8px;
    font-size: 1rem;
  }

  .hamburger {
    display: inline-flex;
  }

  .channel-btn .btn-text {
    display: none;
  }

  .mega-panel {
    position: fixed;
    top: 68px;
    right: 0;
    left: 0;
    width: 100%;
    max-width: 100%;
    border-radius: 0;
    border-left: none;
    border-right: none;
    padding: 20px;
    max-height: calc(100vh - 68px);
    overflow-y: auto;
  }

  .mega-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .section {
    padding: 64px 0;
  }

  .library-section {
    padding: 64px 0;
  }
}

@media (max-width: 640px) {
  .page-hero {
    padding: 120px 0 56px;
  }

  .page-hero h1 {
    font-size: 2.2rem;
  }

  .hero-sub {
    font-size: .96rem;
  }

  .hero-stats {
    gap: 24px;
  }

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

  .filter-tabs {
    gap: 8px;
  }

  .filter-tab {
    padding: .45rem 1rem;
    font-size: .82rem;
  }

  .faq-wrap {
    padding: 0;
  }

  .accordion-title {
    padding: 16px 18px;
    font-size: .95rem;
  }

  .accordion-content {
    padding: 0 18px 18px;
  }

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

  .footer-links {
    gap: 16px;
  }

  .bar-text {
    max-width: 160px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn-lg {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 375px) {
  .channel-btn {
    padding: 8px 12px;
  }

  .brand {
    font-size: 1.25rem;
  }

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