/* roulang page: index */
:root {
    --ink: #181a19;
    --ink-soft: #242725;
    --paper: #f4f5f2;
    --white: #fff;
    --muted: #777e79;
    --line: #dedfda;
    --red: #c53b32;
    --red-dark: #a52d27;
    --sage: #dce5df;
    --radius: 7px;
    --shadow: 0 12px 32px rgba(15, 20, 17, .12);
    --container: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
    margin: 0;
    padding-bottom: 76px;
    background: var(--paper);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--red); }
button, input { font: inherit; }
button { cursor: pointer; }
img { display: block; width: 100%; height: auto; }
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.skip-link {
    position: absolute; left: 12px; top: -60px; z-index: 100;
    padding: 10px 14px; color: white; background: var(--red);
}
.skip-link:focus { top: 12px; }
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(24, 26, 25, .97); color: #f7f7f4;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
.nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; min-width: 0; color: white; }
.brand-mark {
    width: 38px; height: 38px; flex: 0 0 auto; display: grid; place-items: center;
    color: white; background: var(--red); border-radius: 5px; font-weight: 800; font-size: 13px;
}
.brand-name { font-size: 15px; font-weight: 750; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 26px; margin: 0; list-style: none; }
.nav-links a {
    display: inline-flex; min-height: 44px; align-items: center; color: #d6d9d5;
    font-size: 13px; transition: color .2s ease;
}
.nav-links a:hover, .nav-links a:focus-visible { color: white; }
.nav-links .nav-cta { padding: 0 16px; color: white; background: var(--red); border-radius: 4px; }
.nav-links .nav-cta:hover { background: var(--red-dark); }
.menu-toggle {
    display: none; width: 44px; height: 44px; border: 1px solid #525754;
    border-radius: 4px; color: white; background: transparent;
}
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: currentColor; }
.hero {
    position: relative; min-height: 590px; display: flex; align-items: center; overflow: hidden;
    color: white; background: #171918;
}
.hero::before {
    content: ""; position: absolute; inset: 0 0 0 34%;
    background: url("https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=1800&q=88") center 44% / cover no-repeat;
    opacity: .76;
}
.hero::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(90deg, #171918 0%, rgba(23,25,24,.96) 25%, rgba(23,25,24,.65) 55%, rgba(23,25,24,.2) 100%);
}
.hero-content { position: relative; z-index: 1; width: min(var(--container), calc(100% - 48px)); margin: auto; padding: 88px 0 94px; }
.hero-copy { max-width: 630px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 18px; color: #e0b1aa; font-size: 12px; font-weight: 700; letter-spacing: 0; }
.eyebrow::before { content: ""; width: 27px; height: 2px; background: var(--red); }
.hero h1 { max-width: 620px; margin: 0 0 12px; font-size: clamp(38px, 5vw, 64px); line-height: 1.16; font-weight: 800; }
.hero h1 span { color: #f07768; }
.hero-subtitle { margin: 0 0 15px; color: #f1f2ef; font-size: 20px; font-weight: 600; }
.hero-description { max-width: 580px; margin: 0; color: #c5cbc6; line-height: 1.9; }
.hero-actions { display: flex; gap: 12px; margin-top: 27px; }
.button {
    display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 9px;
    padding: 0 20px; border: 1px solid transparent; border-radius: 4px;
    color: white; background: var(--red); font-size: 14px; font-weight: 700;
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.button:hover { color: white; background: var(--red-dark); }
.button:active { transform: translateY(1px); }
.button:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #ee8b80; outline-offset: 3px; }
.button.secondary { color: white; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.38); }
.button.secondary:hover { background: rgba(255,255,255,.16); }
.hero-checks { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 25px 0 0; padding: 0; list-style: none; color: #d6dad6; font-size: 12px; }
.hero-checks li::before { content: "✓"; margin-right: 7px; color: #f07768; font-weight: 800; }
.section { padding: 76px 0; scroll-margin-top: 82px; }
.section.light { background: var(--white); }
.section.dark { color: white; background: var(--ink); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
.section-head > div { max-width: 720px; }
.section-kicker { margin: 0 0 8px; color: var(--red); font-size: 12px; font-weight: 800; }
.section h2 { margin: 0; font-size: 31px; line-height: 1.3; font-weight: 780; }
.section-intro { max-width: 760px; margin: 11px 0 0; color: var(--muted); }
.dark .section-intro { color: #aeb5b0; }
.text-link { display: inline-flex; align-items: center; gap: 8px; flex: 0 0 auto; color: var(--red); font-size: 13px; font-weight: 700; }
.feature-strip { padding: 25px 0; background: #e7ebe6; border-bottom: 1px solid #d9ded8; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.feature-item { display: flex; gap: 15px; padding: 8px 25px; border-right: 1px solid #d0d6d0; }
.feature-item:first-child { padding-left: 0; }
.feature-item:last-child { border: 0; }
.feature-icon {
    width: 38px; height: 38px; display: grid; place-items: center; flex: 0 0 auto;
    border: 1px solid #bfc9c1; border-radius: 5px; color: var(--red); font-size: 17px; font-weight: 800;
}
.feature-item h3 { margin: 0 0 3px; font-size: 15px; }
.feature-item p { margin: 0; color: #69716b; font-size: 12px; line-height: 1.65; }
.film-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 24px 16px; }
.film-card { min-width: 0; }
.poster-wrap { position: relative; overflow: hidden; aspect-ratio: 3 / 4; background: #d8dcd7; border-radius: 5px; }
.poster-wrap img { height: 100%; object-fit: cover; transition: transform .35s ease, filter .35s ease; }
.film-card:hover img { transform: scale(1.045); filter: brightness(.92); }
.poster-badge { position: absolute; left: 9px; bottom: 9px; padding: 4px 8px; color: white; background: rgba(24,26,25,.88); border-radius: 3px; font-size: 10px; font-weight: 700; }
.film-meta { display: flex; align-items: center; justify-content: space-between; gap: 7px; margin-top: 10px; }
.film-meta h3 { overflow: hidden; margin: 0; font-size: 14px; font-weight: 720; text-overflow: ellipsis; white-space: nowrap; }
.rating { flex: 0 0 auto; color: var(--red); font-size: 12px; font-weight: 800; }
.film-category { margin: 3px 0 0; color: var(--muted); font-size: 11px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.step { position: relative; padding: 27px 28px 29px 0; }
.step + .step { padding-left: 28px; border-left: 1px solid var(--line); }
.step-number { color: var(--red); font-size: 12px; font-weight: 800; }
.step h3 { margin: 8px 0 6px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 13px; }
.editorial-band { display: grid; grid-template-columns: 1.05fr 1fr; min-height: 360px; background: var(--ink); color: white; }
.editorial-image { min-height: 340px; overflow: hidden; }
.editorial-image img { width: 100%; height: 100%; object-fit: cover; }
.editorial-copy { display: flex; flex-direction: column; justify-content: center; padding: 50px clamp(28px, 6vw, 78px); }
.editorial-copy .section-kicker { color: #f08377; }
.editorial-copy h2 { max-width: 450px; margin: 0 0 14px; font-size: 30px; line-height: 1.35; }
.editorial-copy p { max-width: 490px; margin: 0; color: #c3cac4; }
.editorial-stats { display: flex; gap: 34px; margin-top: 28px; }
.editorial-stats strong { display: block; font-size: 20px; color: white; }
.editorial-stats span { color: #aeb5b0; font-size: 11px; }
.popular-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; }
.feature-film { position: relative; min-height: 435px; overflow: hidden; border-radius: 5px; background: #262a27; color: white; }
.feature-film img { position: absolute; inset: 0; height: 100%; object-fit: cover; }
.feature-film::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(10,12,11,.9), transparent 68%); }
.feature-film-copy { position: absolute; z-index: 1; left: 27px; right: 27px; bottom: 25px; }
.feature-film-copy .tag { color: #ffc0b7; }
.feature-film-copy h3 { margin: 7px 0; font-size: 27px; }
.feature-film-copy p { max-width: 440px; margin: 0; color: #e0e3df; font-size: 13px; }
.popular-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.popular-item { display: grid; grid-template-columns: 74px 1fr; gap: 12px; align-items: center; min-width: 0; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.popular-item img { width: 74px; height: 88px; object-fit: cover; border-radius: 3px; }
.popular-item h3 { margin: 0 0 3px; font-size: 13px; }
.popular-item p { margin: 0; color: var(--muted); font-size: 11px; }
.tag { display: inline-block; color: var(--red); font-size: 11px; font-weight: 750; }
.channel-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.channel {
    min-height: 150px; display: flex; flex-direction: column; justify-content: space-between;
    padding: 22px; background: white; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
    transition: background .2s ease;
}
.channel:hover { background: #f8f4f2; }
.channel h3 { margin: 0; font-size: 18px; }
.channel p { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.channel span { align-self: flex-end; color: var(--red); font-size: 18px; }
.index-summary { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid rgba(255,255,255,.17); }
.index-item { padding: 24px 20px; border-right: 1px solid rgba(255,255,255,.17); }
.index-item:first-child { padding-left: 0; }
.index-item:last-child { border: 0; }
.index-item strong { display: block; color: white; font-size: 20px; }
.index-item span { color: #aeb5b0; font-size: 12px; }
.rank-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; }
.rank-list { margin: 0; padding: 0; list-style: none; }
.rank-row { display: grid; grid-template-columns: 37px minmax(0, 1fr) auto auto; align-items: center; gap: 13px; min-height: 58px; border-bottom: 1px solid var(--line); }
.rank-num { color: #8b928d; font-size: 16px; font-weight: 800; }
.rank-row:nth-child(-n+3) .rank-num { color: var(--red); }
.rank-title { overflow: hidden; font-size: 13px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.rank-category, .rank-heat { color: var(--muted); font-size: 11px; white-space: nowrap; }
.rank-heat strong { color: var(--ink); font-size: 12px; }
.comparison { width: 100%; border-collapse: collapse; background: white; }
.comparison th, .comparison td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; }
.comparison th { color: var(--muted); background: #eef0ec; font-size: 11px; font-weight: 700; }
.comparison td:first-child { width: 22%; font-weight: 750; }
.comparison td:nth-child(2) { color: var(--red); font-weight: 700; }
.news-grid { display: grid; grid-template-columns: 1.1fr 1fr 1fr; gap: 20px; }
.news-feature { grid-row: span 2; }
.news-image { overflow: hidden; aspect-ratio: 16 / 9; background: #d9ddd8; border-radius: 4px; }
.news-feature .news-image { aspect-ratio: 4 / 3; }
.news-image img { height: 100%; object-fit: cover; transition: transform .3s ease; }
.news-item:hover img { transform: scale(1.04); }
.news-item h3 { margin: 10px 0 4px; font-size: 14px; line-height: 1.55; }
.news-item time { color: var(--muted); font-size: 11px; }
.news-feature h3 { font-size: 18px; }
.topic-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 30px; border-top: 1px solid rgba(255,255,255,.18); }
.topic-link { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.topic-link strong { font-size: 14px; }
.topic-link span { color: #f08377; font-size: 12px; }
.guide-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.guide-item { padding-top: 17px; border-top: 2px solid var(--red); }
.guide-item h3 { margin: 0 0 7px; font-size: 16px; }
.guide-item p { margin: 0; color: var(--muted); font-size: 13px; }
details { border-bottom: 1px solid var(--line); }
details:first-of-type { border-top: 1px solid var(--line); }
summary {
    position: relative; padding: 18px 38px 18px 0; list-style: none;
    cursor: pointer; font-size: 14px; font-weight: 720;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; top: 15px; right: 5px; color: var(--red); font-size: 20px; font-weight: 400; }
details[open] summary::after { content: "−"; }
details p { max-width: 850px; margin: -2px 0 19px; color: var(--muted); font-size: 13px; }
.assurance { padding: 24px 0; background: #e6ebe6; border-block: 1px solid #d7ded8; }
.assurance-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; }
.assurance-item { display: flex; align-items: center; gap: 10px; color: #454c47; font-size: 12px; font-weight: 650; }
.assurance-item b { color: var(--red); font-size: 16px; }
.related-links { display: flex; flex-wrap: wrap; gap: 10px; }
.related-links a { padding: 8px 12px; border: 1px solid var(--line); border-radius: 3px; color: #4c534e; font-size: 12px; }
.related-links a:hover { border-color: var(--red); color: var(--red); }
.site-footer { padding: 54px 0 22px; color: #d9ddd9; background: #181a19; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 35px; padding-bottom: 36px; }
.footer-brand p { max-width: 310px; margin: 14px 0 0; color: #aeb5b0; font-size: 12px; }
.footer-col h2 { margin: 0 0 13px; color: white; font-size: 13px; }
.footer-col ul { margin: 0; padding: 0; list-style: none; }
.footer-col li { margin: 7px 0; }
.footer-col a, .footer-col p { color: #aeb5b0; font-size: 12px; }
.footer-col a:hover { color: white; }
.copyright { padding-top: 18px; border-top: 1px solid #343936; color: #8c948e; font-size: 11px; }
.sticky-cta {
    position: fixed; z-index: 40; right: 0; bottom: 0; left: 0;
    min-height: 66px; display: flex; align-items: center; background: rgba(24,26,25,.98);
    border-top: 1px solid rgba(255,255,255,.12); color: white;
}
.sticky-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.sticky-copy strong { display: block; font-size: 13px; }
.sticky-copy span { color: #aeb5b0; font-size: 11px; }
.sticky-cta .button { min-height: 42px; padding-inline: 17px; }
@media (max-width: 1024px) {
    .film-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .nav-links { gap: 15px; }
    .news-grid { grid-template-columns: 1fr 1fr; }
    .news-feature { grid-row: span 2; }
}
@media (max-width: 767px) {
    .container { width: min(100% - 36px, var(--container)); }
    .nav-row { min-height: 64px; }
    .menu-toggle { display: block; }
    .nav-links {
        display: none; position: absolute; top: 64px; left: 0; right: 0;
        padding: 8px 18px 16px; background: var(--ink); border-top: 1px solid #353a36;
    }
    .nav-links.is-open { display: block; }
    .nav-links li { border-bottom: 1px solid #343936; }
    .nav-links li:last-child { border: 0; padding-top: 8px; }
    .nav-links a { width: 100%; min-height: 46px; }
    .nav-links .nav-cta { justify-content: center; }
    .hero { min-height: 560px; }
    .hero::before { inset: 0; background-position: 58% center; opacity: .48; }
    .hero::after { background: linear-gradient(90deg, rgba(23,25,24,.97), rgba(23,25,24,.65)); }
    .hero-content { width: min(100% - 36px, var(--container)); padding: 72px 0 82px; }
    .hero h1 { font-size: 43px; }
    .hero-description { font-size: 14px; }
    .section { padding: 58px 0; }
    .section-head { align-items: flex-start; flex-direction: column; gap: 12px; }
    .section h2 { font-size: 26px; }
    .feature-grid { grid-template-columns: 1fr; }
    .feature-item, .feature-item:first-child { padding: 14px 0; border-right: 0; border-bottom: 1px solid #d0d6d0; }
    .feature-item:last-child { border-bottom: 0; }
    .film-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px 12px; }
    .steps { grid-template-columns: 1fr; }
    .step, .step + .step { padding: 21px 0; border-left: 0; border-bottom: 1px solid var(--line); }
    .step:last-child { border-bottom: 0; }
    .editorial-band { grid-template-columns: 1fr; }
    .editorial-image { min-height: 250px; max-height: 300px; }
    .editorial-copy { padding: 34px 24px 38px; }
    .popular-layout { grid-template-columns: 1fr; }
    .feature-film { min-height: 350px; }
    .channel-grid { grid-template-columns: 1fr 1fr; }
    .channel { min-height: 165px; padding: 17px; }
    .index-summary { grid-template-columns: 1fr 1fr; }
    .index-item { padding: 18px 14px; border-bottom: 1px solid rgba(255,255,255,.17); }
    .index-item:nth-child(2) { border-right: 0; }
    .index-item:nth-child(3), .index-item:nth-child(4) { border-bottom: 0; }
    .rank-layout { grid-template-columns: 1fr; gap: 0; }
    .comparison th, .comparison td { padding: 12px 9px; font-size: 11px; }
    .comparison td:first-child { width: 23%; }
    .news-grid { grid-template-columns: 1fr 1fr; gap: 18px 13px; }
    .news-feature { grid-column: 1 / -1; grid-row: auto; }
    .news-feature .news-image { aspect-ratio: 16 / 9; }
    .topic-grid { grid-template-columns: 1fr 1fr; gap: 0 18px; }
    .guide-list { grid-template-columns: 1fr; gap: 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
    body { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
    .sticky-cta { padding-bottom: env(safe-area-inset-bottom); }
}
@media (max-width: 520px) {
    .brand-name { font-size: 13px; }
    .brand-mark { width: 35px; height: 35px; }
    .hero { min-height: 540px; }
    .hero h1 { font-size: 38px; }
    .hero-subtitle { font-size: 17px; }
    .hero-actions { align-items: stretch; flex-direction: column; max-width: 260px; }
    .hero-checks { gap: 7px 13px; }
    .film-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 13px; }
    .film-meta h3 { font-size: 13px; }
    .popular-list { grid-template-columns: 1fr; }
    .channel-grid { grid-template-columns: 1fr; }
    .channel { min-height: 134px; }
    .rank-row { grid-template-columns: 28px minmax(0, 1fr) auto; gap: 8px; }
    .rank-category { display: none; }
    .news-grid { grid-template-columns: 1fr 1fr; }
    .news-feature h3 { font-size: 16px; }
    .topic-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .sticky-row { gap: 10px; }
    .sticky-copy strong { font-size: 11px; }
    .sticky-copy span { display: none; }
    .sticky-cta .button { min-height: 40px; padding-inline: 12px; font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}