/* roulang page: index */
:root {
            --berry: #982b68;
            --berry-deep: #74204e;
            --coral: #f07859;
            --lime: #d5f26d;
            --mist: #fbf8fc;
            --lavender: #f0eaf3;
            --ink: #28232d;
            --muted: #77717d;
            --line: #e9e2eb;
            --white: #fff;
            --radius: 22px;
            --radius-small: 13px;
            --shadow: 0 14px 38px rgba(72, 35, 63, .08);
            --container: 1200px;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; scroll-padding-top: 92px; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--mist);
            font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        img { display: block; max-width: 100%; }
        button { font: inherit; }
        button, a { -webkit-tap-highlight-color: transparent; }
        :focus-visible { outline: 3px solid #b2d739; outline-offset: 3px; }
        .container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
        .site-header {
            position: sticky; top: 0; z-index: 50;
            background: rgba(251, 248, 252, .96);
            border-bottom: 1px solid rgba(233, 226, 235, .9);
            backdrop-filter: blur(12px);
        }
        .nav-row { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
        .brand { display: inline-flex; align-items: center; gap: 11px; min-width: 0; font-weight: 850; }
        .brand-mark {
            width: 42px; height: 42px; flex: 0 0 42px; display: grid; place-items: center;
            border-radius: 14px; color: #fff; font-size: 13px; line-height: 1.1; text-align: center;
            background: linear-gradient(135deg, var(--berry), var(--coral)); box-shadow: 0 7px 18px rgba(152, 43, 104, .22);
        }
        .brand-name { font-size: 17px; line-height: 1.25; }
        .nav-links { display: flex; align-items: center; gap: 24px; color: #5c5561; font-size: 14px; font-weight: 650; }
        .nav-links a:not(.button) { transition: color .2s ease; }
        .nav-links a:not(.button):hover, .nav-links a.active { color: var(--berry); }
        .menu-toggle {
            display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 13px;
            background: white; color: var(--ink); cursor: pointer;
        }
        .button {
            display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 9px;
            padding: 0 20px; border-radius: 999px; font-weight: 750; transition: transform .2s, box-shadow .2s, background .2s;
        }
        .button:hover { transform: translateY(-2px); }
        .button-primary { color: #fff; background: linear-gradient(110deg, var(--berry), var(--coral)); box-shadow: 0 9px 20px rgba(152,43,104,.2); }
        .button-primary:hover { box-shadow: 0 12px 24px rgba(152,43,104,.28); }
        .button-light { color: var(--berry-deep); background: #fff; border: 1px solid var(--line); }
        .button-light:hover { background: #fff8fb; border-color: #d8b4ca; }
        .hero {
            position: relative; overflow: hidden; min-height: 560px; display: flex; align-items: center;
            color: #fff; background: #322530;
        }
        .hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 42%; }
        .hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(29,18,29,.88) 0%, rgba(45,24,42,.70) 46%, rgba(47,28,38,.18) 100%); }
        .hero-content { position: relative; z-index: 1; padding-block: 74px; max-width: 780px; }
        .eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 7px 13px; border: 1px solid rgba(255,255,255,.3); border-radius: 999px; color: #f8dce9; font-size: 13px; font-weight: 700; }
        .eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); }
        .hero h1 { max-width: 740px; margin: 22px 0 14px; font-size: 52px; line-height: 1.18; font-weight: 900; }
        .hero h1 span { color: #f29a83; }
        .hero-subtitle { margin: 0 0 12px; color: #fff; font-size: 21px; font-weight: 750; }
        .hero-copy { max-width: 700px; margin: 0; color: rgba(255,255,255,.86); font-size: 16px; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
        .hero-note { display: flex; align-items: center; gap: 10px; margin-top: 30px; color: rgba(255,255,255,.8); font-size: 13px; }
        .hero-note b { color: var(--lime); font-size: 15px; }
        section { padding: 76px 0; scroll-margin-top: 88px; }
        .section-soft { background: #f4eef6; }
        .section-white { background: #fff; }
        .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
        .section-kicker { margin: 0 0 7px; color: var(--berry); font-size: 12px; font-weight: 850; text-transform: uppercase; }
        .section-title { margin: 0; font-size: 32px; line-height: 1.25; font-weight: 850; }
        .section-copy { max-width: 680px; margin: 10px 0 0; color: var(--muted); font-size: 15px; }
        .text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--berry); font-weight: 750; white-space: nowrap; }
        .text-link:hover { color: var(--coral); }
        .solution-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: stretch; }
        .solution-image { position: relative; min-height: 360px; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow); }
        .solution-image img { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: cover; }
        .image-caption { position: absolute; left: 18px; bottom: 18px; padding: 8px 13px; color: white; background: rgba(38,25,37,.78); border-radius: 999px; font-size: 13px; font-weight: 700; }
        .solution-list { display: grid; align-content: center; gap: 12px; }
        .solution-item { display: flex; gap: 15px; padding: 17px; border: 1px solid var(--line); border-radius: var(--radius-small); background: white; }
        .solution-icon { width: 42px; height: 42px; flex: 0 0 42px; display: grid; place-items: center; color: var(--berry); background: #f9e8f0; border-radius: 14px; font-weight: 850; }
        .solution-item h3 { margin: 0 0 3px; font-size: 16px; }
        .solution-item p { margin: 0; color: var(--muted); font-size: 13px; }
        .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
        .step { padding: 7px 24px 8px 0; position: relative; }
        .step:not(:last-child)::after { content: ""; position: absolute; left: 46px; right: 12px; top: 26px; border-top: 1px dashed #d7bfce; }
        .step-num { position: relative; z-index: 1; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 17px; color: #fff; background: linear-gradient(135deg,var(--berry),var(--coral)); font-weight: 850; }
        .step h3 { margin: 15px 0 5px; font-size: 17px; }
        .step p { max-width: 245px; margin: 0; color: var(--muted); font-size: 14px; }
        .movie-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 24px 18px; }
        .movie-card { min-width: 0; overflow: hidden; border-radius: 18px; background: white; border: 1px solid var(--line); transition: transform .22s, box-shadow .22s; }
        .movie-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
        .movie-poster { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #e4dce6; }
        .movie-poster img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
        .movie-card:hover .movie-poster img { transform: scale(1.04); }
        .status { position: absolute; top: 12px; left: 12px; padding: 5px 9px; border-radius: 999px; background: var(--lime); color: #30371c; font-size: 11px; font-weight: 850; }
        .movie-info { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 13px 14px 15px; }
        .movie-info h3 { overflow: hidden; margin: 0; font-size: 15px; font-weight: 800; text-overflow: ellipsis; white-space: nowrap; }
        .rating { flex: 0 0 auto; color: var(--berry); font-size: 13px; font-weight: 850; }
        .featured-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 26px; }
        .featured-main { position: relative; min-height: 440px; overflow: hidden; border-radius: var(--radius); color: white; background: #382934; }
        .featured-main img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
        .featured-main::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg,rgba(31,20,30,.88),transparent 70%); }
        .featured-caption { position: absolute; z-index: 1; left: 28px; right: 28px; bottom: 26px; }
        .featured-caption h3 { margin: 10px 0 7px; font-size: 28px; }
        .featured-caption p { max-width: 520px; margin: 0; color: rgba(255,255,255,.85); font-size: 14px; }
        .feature-side { display: grid; gap: 14px; }
        .feature-row { display: grid; grid-template-columns: 112px 1fr; min-height: 132px; overflow: hidden; border-radius: 17px; background: #fff; border: 1px solid var(--line); }
        .feature-row img { width: 100%; height: 100%; object-fit: cover; }
        .feature-row div { align-self: center; padding: 12px 16px; }
        .feature-row h3 { margin: 0 0 4px; font-size: 16px; }
        .feature-row p { margin: 0; color: var(--muted); font-size: 13px; }
        .category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
        .category { display: block; padding: 22px; border-radius: 17px; background: #fff; border: 1px solid var(--line); transition: border-color .2s, transform .2s; }
        .category:hover { transform: translateY(-3px); border-color: #d5a8c1; }
        .category-top { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
        .category h3 { margin: 0; font-size: 18px; }
        .category-mark { color: var(--berry); font-size: 20px; font-weight: 900; }
        .category p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
        .ranking-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
        .rank-list { margin: 0; padding: 0; list-style: none; }
        .rank-item { display: grid; grid-template-columns: 36px minmax(0,1fr) auto auto; align-items: center; gap: 12px; min-height: 62px; border-bottom: 1px solid var(--line); }
        .rank-num { color: #a49aa7; font-size: 16px; font-weight: 850; }
        .rank-item:nth-child(-n+3) .rank-num { color: var(--coral); }
        .rank-title { overflow: hidden; font-size: 14px; font-weight: 750; text-overflow: ellipsis; white-space: nowrap; }
        .rank-tag { padding: 4px 8px; border-radius: 999px; color: var(--berry); background: #f8e8f0; font-size: 11px; }
        .rank-score { color: var(--berry); font-size: 13px; font-weight: 850; }
        .rank-hot { grid-column: 2 / -1; color: var(--muted); font-size: 11px; text-align: right; margin-top: -17px; }
        .metric-band { padding: 28px; color: white; border-radius: var(--radius); background: linear-gradient(115deg,#842557,#bd426f 55%,#e67d60); }
        .metric-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
        .metric { padding: 12px 18px; border-right: 1px solid rgba(255,255,255,.24); }
        .metric:last-child { border-right: 0; }
        .metric strong { display: block; color: var(--lime); font-size: 28px; line-height: 1.2; }
        .metric span { display: block; margin-top: 5px; color: rgba(255,255,255,.85); font-size: 13px; }
        .metric-note { margin: 15px 0 0; color: rgba(255,255,255,.76); font-size: 12px; }
        .quotes { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
        .quote { padding: 24px 26px; border-left: 4px solid var(--coral); background: #fff; border-radius: 0 16px 16px 0; }
        .quote p { margin: 0; color: #48414c; font-size: 16px; }
        .quote cite { display: block; margin-top: 12px; color: var(--muted); font-size: 12px; font-style: normal; }
        .scene-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 45px; align-items: center; }
        .scene-image { aspect-ratio: 5 / 4; overflow: hidden; border-radius: var(--radius); }
        .scene-image img { width: 100%; height: 100%; object-fit: cover; }
        .scene-list { display: grid; gap: 0; }
        .scene-row { display: grid; grid-template-columns: 120px 1fr; gap: 18px; padding: 17px 0; border-bottom: 1px solid var(--line); }
        .scene-row strong { color: var(--berry); }
        .scene-row p { margin: 0; color: var(--muted); font-size: 14px; }
        .news-layout { display: grid; grid-template-columns: .95fr 1.05fr; gap: 34px; }
        .news-lead { overflow: hidden; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
        .news-lead img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
        .news-lead-body { padding: 20px; }
        .news-date { color: var(--berry); font-size: 12px; font-weight: 800; }
        .news-lead h3 { margin: 8px 0; font-size: 20px; }
        .news-lead p { margin: 0; color: var(--muted); font-size: 14px; }
        .news-list { display: grid; align-content: start; }
        .news-item { display: grid; grid-template-columns: 92px 1fr; gap: 15px; padding: 12px 0; border-bottom: 1px solid var(--line); }
        .news-item img { width: 92px; aspect-ratio: 1.35; object-fit: cover; border-radius: 10px; }
        .news-item h3 { margin: 0 0 4px; font-size: 15px; line-height: 1.45; }
        .news-item time { color: var(--muted); font-size: 12px; }
        .topic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .topic { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 22px; border-radius: 16px; background: #fff; border: 1px solid var(--line); }
        .topic h3 { margin: 0 0 4px; font-size: 17px; }
        .topic p { margin: 0; color: var(--muted); font-size: 13px; }
        .topic span { flex: 0 0 auto; color: var(--coral); font-size: 22px; font-weight: 850; }
        .data-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
        .data-cell { padding: 8px 24px; border-right: 1px solid var(--line); }
        .data-cell:first-child { padding-left: 0; }
        .data-cell:last-child { border: 0; }
        .data-cell b { display: block; color: var(--berry); font-size: 19px; }
        .data-cell span { color: var(--muted); font-size: 13px; }
        .faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 48px; }
        .faq-intro { max-width: 340px; }
        .faq-list { border-top: 1px solid var(--line); }
        .faq-item { border-bottom: 1px solid var(--line); }
        .faq-item summary { position: relative; padding: 18px 34px 18px 0; cursor: pointer; list-style: none; font-weight: 800; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: "+"; position: absolute; right: 0; top: 13px; color: var(--berry); font-size: 24px; }
        .faq-item[open] summary::after { content: "−"; }
        .faq-item p { margin: 0 0 18px; color: var(--muted); font-size: 14px; }
        .final-cta { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin-top: 34px; padding: 28px 30px; border-radius: var(--radius); background: #f3e8f0; }
        .final-cta h3 { margin: 0 0 5px; font-size: 20px; }
        .final-cta p { margin: 0; color: var(--muted); font-size: 14px; }
        .site-footer { padding: 54px 0 22px; color: #eae2eb; background: #302831; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 36px; }
        .footer-brand .brand-name { color: white; }
        .footer-desc { max-width: 350px; margin: 14px 0 0; color: #bdb2c0; font-size: 13px; }
        .footer-col h3 { margin: 0 0 14px; color: white; font-size: 14px; }
        .footer-col a { display: block; width: fit-content; margin: 8px 0; color: #c8bdca; font-size: 13px; transition: color .2s; }
        .footer-col a:hover { color: var(--lime); }
        .copyright { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.13); color: #a99eac; font-size: 12px; }
        @media (max-width: 1024px) {
            .nav-links { gap: 15px; }
            .nav-links a { font-size: 13px; }
            .movie-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
            .hero { min-height: 520px; }
            .hero h1 { font-size: 46px; }
        }
        @media (max-width: 768px) {
            .container { width: min(100% - 36px, var(--container)); }
            .nav-row { min-height: 70px; }
            .menu-toggle { display: grid; place-items: center; }
            .nav-links {
                display: none; position: absolute; top: calc(100% + 1px); left: 0; right: 0; padding: 12px 18px 18px;
                background: var(--mist); border-bottom: 1px solid var(--line); box-shadow: 0 14px 22px rgba(45,28,45,.08);
                align-items: stretch; flex-direction: column; gap: 2px;
            }
            .nav-links.open { display: flex; }
            .nav-links a:not(.button) { padding: 10px 8px; }
            .nav-links .button { margin-top: 8px; }
            .hero { min-height: 520px; }
            .hero-content { padding-block: 62px; }
            .hero h1 { font-size: 40px; }
            section { padding: 58px 0; }
            .section-head { align-items: flex-start; flex-direction: column; gap: 12px; }
            .section-title { font-size: 28px; }
            .solution-grid, .featured-layout, .scene-layout, .news-layout, .faq-grid { grid-template-columns: 1fr; }
            .solution-image { min-height: 300px; }
            .steps { grid-template-columns: repeat(2,1fr); gap: 26px 12px; }
            .step:nth-child(2)::after { display: none; }
            .category-grid { grid-template-columns: repeat(2,1fr); }
            .ranking-wrap { gap: 22px; }
            .metric-grid { grid-template-columns: repeat(2,1fr); }
            .metric:nth-child(2) { border-right: 0; }
            .metric:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.2); }
            .scene-image { max-height: 360px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            body { font-size: 15px; }
            .container { width: min(100% - 30px, var(--container)); }
            .brand-name { max-width: 220px; font-size: 15px; }
            .brand-mark { width: 39px; height: 39px; flex-basis: 39px; }
            .hero { min-height: 550px; align-items: end; }
            .hero::after { background: linear-gradient(0deg,rgba(29,18,29,.91) 0%,rgba(45,24,42,.67) 68%,rgba(47,28,38,.2) 100%); }
            .hero-photo { object-position: 58% center; }
            .hero-content { padding-block: 65px 42px; }
            .hero h1 { margin-top: 17px; font-size: 35px; }
            .hero-subtitle { font-size: 18px; }
            .hero-copy { font-size: 14px; }
            .hero-actions { gap: 10px; }
            .hero-actions .button { min-height: 44px; padding-inline: 16px; font-size: 14px; }
            section { padding: 48px 0; }
            .section-title { font-size: 25px; }
            .movie-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px 11px; }
            .movie-poster { aspect-ratio: 1.2 / 1; }
            .movie-info { padding: 10px; }
            .movie-info h3 { font-size: 13px; }
            .status { top: 8px; left: 8px; padding: 4px 7px; font-size: 10px; }
            .featured-main { min-height: 350px; }
            .featured-caption { left: 20px; right: 20px; bottom: 20px; }
            .featured-caption h3 { font-size: 24px; }
            .feature-row { grid-template-columns: 96px 1fr; }
            .feature-row div { padding: 10px; }
            .feature-row h3 { font-size: 14px; }
            .feature-row p { font-size: 12px; }
            .category-grid { gap: 10px; }
            .category { padding: 16px; }
            .category h3 { font-size: 16px; }
            .category p { font-size: 12px; }
            .ranking-wrap { grid-template-columns: 1fr; }
            .rank-item { grid-template-columns: 30px minmax(0,1fr) auto auto; gap: 8px; }
            .rank-title { font-size: 13px; }
            .rank-tag { font-size: 10px; }
            .metric-band { padding: 18px; }
            .metric { padding: 10px 12px; }
            .metric strong { font-size: 24px; }
            .quotes { grid-template-columns: 1fr; gap: 14px; }
            .quote { padding: 18px; }
            .scene-row { grid-template-columns: 92px 1fr; gap: 12px; }
            .news-item { grid-template-columns: 78px 1fr; gap: 12px; }
            .news-item img { width: 78px; }
            .news-item h3 { font-size: 14px; }
            .topic-grid { grid-template-columns: 1fr; }
            .topic { padding: 16px; }
            .data-strip { grid-template-columns: 1fr 1fr; row-gap: 14px; }
            .data-cell { padding: 8px 12px; }
            .data-cell:nth-child(2) { border-right: 0; }
            .data-cell:nth-child(3) { padding-left: 0; }
            .faq-grid { gap: 22px; }
            .final-cta { align-items: flex-start; flex-direction: column; padding: 22px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
            .copyright { flex-direction: column; gap: 5px; }
        }
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
        }