/* roulang page: index */
:root{
            --bg:#17131b;
            --bg-deep:#100e14;
            --panel:#241e2b;
            --panel-soft:#2d2535;
            --cream:#fff9f4;
            --muted:#bdb2bf;
            --line:rgba(255,255,255,.1);
            --coral:#ff876d;
            --pink:#e985b4;
            --amber:#f5bd72;
            --mint:#8ed9c4;
            --gradient:linear-gradient(135deg,#ff856d 0%,#e985b4 53%,#8c78d8 100%);
            --radius:24px;
            --shadow:0 20px 60px rgba(0,0,0,.28);
            --container:1220px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--cream);line-height:1.7;overflow-x:hidden}
        body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.2;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to bottom,#000,transparent 70%)}
        a{color:inherit;text-decoration:none}
        img{display:block;width:100%;object-fit:cover}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--amber);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral);border-radius:2px}
        .section{padding:96px 0;position:relative}
        .section.alt{background:rgba(255,255,255,.025);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:36px}
        .section-head h2{font-size:clamp(28px,4vw,46px);line-height:1.2;letter-spacing:-.04em;margin-top:12px}
        .section-head p{max-width:530px;color:var(--muted);font-size:15px}
        .header{position:sticky;top:0;z-index:50;background:rgba(23,19,27,.93);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
        .nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;white-space:nowrap}
        .brand-mark{width:40px;height:40px;border-radius:13px;background:var(--gradient);display:grid;place-items:center;color:#fff;font-size:21px;box-shadow:0 8px 24px rgba(233,133,180,.28)}
        .nav-links{display:flex;align-items:center;gap:7px}
        .nav-links a{padding:9px 13px;color:var(--muted);font-size:14px;border-radius:10px;transition:.2s}
        .nav-links a:hover,.nav-links a:focus-visible,.nav-links a.active{color:#fff;background:rgba(255,255,255,.08)}
        .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:13px;padding:13px 20px;font-weight:750;transition:.2s}
        .nav-cta,.btn.primary{color:#21151d;background:var(--gradient);box-shadow:0 12px 25px rgba(233,133,180,.2)}
        .nav-cta:hover,.btn:hover{transform:translateY(-3px);filter:brightness(1.06)}
        .btn.secondary{color:#fff;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06)}
        .btn:focus-visible,.nav-cta:focus-visible,.nav-links a:focus-visible,.menu-btn:focus-visible,summary:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
        .menu-btn{display:none;background:none;border:1px solid var(--line);color:#fff;border-radius:10px;padding:8px 11px;font-size:20px}
        .hero{padding:78px 0 90px;min-height:650px;display:flex;align-items:center;background:radial-gradient(circle at 80% 20%,rgba(233,133,180,.2),transparent 30%),radial-gradient(circle at 5% 80%,rgba(255,135,109,.13),transparent 32%)}
        .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
        .hero h1{font-size:clamp(43px,6.8vw,82px);line-height:1.08;letter-spacing:-.07em;margin:18px 0 20px;max-width:720px}
        .hero h1 em{font-style:normal;background:var(--gradient);background-clip:text;-webkit-background-clip:text;color:transparent}
        .hero-sub{font-size:20px;color:#f4dce7;font-weight:650;margin-bottom:18px}
        .hero-copy{max-width:650px;color:var(--muted);font-size:16px}
        .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
        .hero-notes{display:flex;gap:26px;margin-top:34px;color:var(--muted);font-size:13px}
        .hero-notes strong{display:block;color:#fff;font-size:22px;line-height:1.2}
        .hero-poster{position:relative;min-height:430px;border:1px solid var(--line);border-radius:32px;padding:20px;background:linear-gradient(145deg,#332638,#1f1a27);box-shadow:var(--shadow);overflow:hidden}
        .hero-poster:after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.09),transparent 70%);transform:translateX(-100%);animation:sheen 7s infinite}
        @keyframes sheen{35%,100%{transform:translateX(100%)}}
        .poster-main{height:350px;border-radius:22px;overflow:hidden;position:relative;background:#3a2436}
        .poster-main img{height:100%;filter:saturate(.9)}
        .poster-overlay{position:absolute;inset:0;padding:20px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(to bottom,rgba(0,0,0,.1),rgba(15,10,18,.85))}
        .poster-top{display:flex;justify-content:space-between}.badge{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:5px 10px;font-size:11px;font-weight:800;color:#fff;background:rgba(16,12,20,.7);border:1px solid rgba(255,255,255,.14)}
        .badge.hot{background:#b94c68}.badge.mint{background:#27695d}.badge.amber{background:#825e2b}
        .poster-title{font-size:30px;font-weight:800}.poster-meta{display:flex;gap:9px;flex-wrap:wrap;color:#e7dce5;font-size:13px}
        .quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
        .quick-card,.category-card,.scene-card,.feedback-card,.guide-card{padding:24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:.22s}
        .quick-card:hover,.category-card:hover,.scene-card:hover,.feedback-card:hover,.guide-card:hover{transform:translateY(-4px);border-color:rgba(255,135,109,.45);box-shadow:var(--shadow)}
        .icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:rgba(255,135,109,.12);color:var(--coral);font-size:21px;margin-bottom:18px}
        .quick-card h3,.category-card h3,.scene-card h3,.feedback-card h3{font-size:18px;margin-bottom:7px}.quick-card p,.category-card p,.scene-card p,.feedback-card p{color:var(--muted);font-size:14px}.arrow{color:var(--amber);display:block;margin-top:15px;font-size:20px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
        .step{position:relative;padding:28px 24px;border-right:1px solid var(--line)}.step:last-child{border:0}.step-num{color:var(--coral);font-size:13px;font-weight:800;letter-spacing:.12em}.step h3{margin:15px 0 8px}.step p{font-size:14px;color:var(--muted)}
        .poster-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.poster-card{min-width:0}.poster-img{height:290px;position:relative;border-radius:18px;overflow:hidden;background:#332735}.poster-img img{height:100%;transition:.35s}.poster-card:hover img{transform:scale(1.04)}.poster-img .badge{position:absolute;top:12px;left:12px}.poster-info{padding:13px 2px}.poster-info h3{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.poster-info .sub{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:5px}.score{color:var(--amber);font-weight:800}
        .feature-grid{display:grid;grid-template-columns:1.28fr .72fr;gap:20px}.feature-main,.feature-small{position:relative;overflow:hidden;border-radius:24px;min-height:370px;background:#39283b}.feature-small{min-height:175px}.feature-grid .feature-small:nth-child(2){grid-column:2}.feature-stack{display:grid;gap:20px}.feature-grid img{height:100%;position:absolute}.feature-grid article:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 28%,rgba(15,10,18,.9))}.feature-text{position:absolute;z-index:2;bottom:24px;left:25px;right:25px}.feature-text h3{font-size:25px}.feature-small h3{font-size:18px}.feature-text p{color:#d4c6d2;font-size:13px;margin-top:5px}
        .categories{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.category-card{min-height:190px}.category-card .category-no{font-size:12px;color:var(--coral);font-weight:800}.category-card h3{margin-top:25px}
        .rank-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px}.rank-list{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:8px 20px}.rank-item{display:grid;grid-template-columns:42px 1fr auto auto;gap:15px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}.rank-item:last-child{border:0}.rank-no{font-size:21px;color:var(--muted);font-weight:800}.rank-item:nth-child(-n+3) .rank-no{color:var(--coral)}.rank-name{font-weight:700}.rank-type{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 8px}.rank-hot{font-size:12px;color:var(--amber)}
        .feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quote{font-size:19px;line-height:1.55;color:#fff;margin:18px 0}.tags{display:flex;gap:7px;flex-wrap:wrap}.tag{font-size:11px;color:var(--muted);background:rgba(255,255,255,.06);padding:5px 9px;border-radius:999px}
        .scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.scene-card{min-height:190px}.scene-card:nth-child(2) .icon{color:var(--mint);background:rgba(142,217,196,.12)}.scene-card:nth-child(3) .icon{color:var(--amber);background:rgba(245,189,114,.12)}
        .news-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px}.news-item{display:grid;grid-template-columns:145px 1fr;gap:18px;padding:14px;border-radius:18px;background:var(--panel);border:1px solid var(--line);transition:.2s}.news-item:hover{border-color:var(--pink);transform:translateX(3px)}.news-item img{height:100px;border-radius:13px}.news-item h3{font-size:16px;line-height:1.4;margin:8px 0}.date{font-size:12px;color:var(--amber)}
        .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.metric{padding:27px;border-radius:22px;background:linear-gradient(145deg,#2c2332,#211b27);border:1px solid var(--line)}.metric strong{font-size:40px;display:block;line-height:1.1;background:var(--gradient);background-clip:text;-webkit-background-clip:text;color:transparent}.metric span{display:block;color:var(--muted);font-size:14px;margin-top:9px}.progress{height:5px;background:#403344;border-radius:99px;margin-top:18px;overflow:hidden}.progress i{display:block;height:100%;background:var(--gradient);border-radius:99px}
        .faq{max-width:900px;margin:auto}.faq details{background:var(--panel);border:1px solid var(--line);border-radius:16px;margin-bottom:12px;padding:0 22px}.faq details[open]{border-color:rgba(255,135,109,.45)}summary{list-style:none;cursor:pointer;padding:21px 0;font-weight:700;display:flex;justify-content:space-between;gap:20px}summary::-webkit-details-marker{display:none}summary:after{content:"＋";color:var(--coral);font-size:22px}details[open] summary:after{content:"－"}.answer{color:var(--muted);font-size:14px;padding:0 32px 20px 0}
        .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.guide-card{min-height:190px}.guide-card strong{font-size:12px;color:var(--coral);letter-spacing:.1em}.guide-card h3{font-size:20px;margin:18px 0 7px}.guide-card p{font-size:14px;color:var(--muted)}
        .cta{padding:80px 0}.cta-box{padding:58px;border-radius:30px;background:var(--gradient);color:#24151e;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-box h2{font-size:clamp(30px,4vw,50px);line-height:1.2}.cta-box p{margin-top:10px;max-width:650px}.cta-box .btn{background:#24151e;color:#fff;box-shadow:none}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
        footer{border-top:1px solid var(--line);padding:55px 0 24px;background:var(--bg-deep)}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px}.footer-brand p{color:var(--muted);font-size:14px;max-width:290px;margin-top:14px}.footer-col h3{font-size:14px;margin-bottom:16px}.footer-col a{display:block;color:var(--muted);font-size:13px;margin:9px 0;transition:.2s}.footer-col a:hover{color:var(--coral)}.copyright{border-top:1px solid var(--line);margin-top:38px;padding-top:20px;color:#847886;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        @media(max-width:1024px){.hero-grid{gap:35px}.quick-grid,.scene-grid{grid-template-columns:repeat(2,1fr)}.poster-grid{grid-template-columns:repeat(3,1fr)}.categories{grid-template-columns:repeat(3,1fr)}.metrics{grid-template-columns:repeat(2,1fr)}.nav-links{gap:0}.nav-links a{padding:8px}}
        @media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.nav{height:68px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:14px 16px 20px;background:#1b151f;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}.nav-cta{display:none}.hero{padding:60px 0}.hero-grid{grid-template-columns:1fr}.hero-poster{min-height:390px}.poster-main{height:330px}.section{padding:70px 0}.section-head{display:block}.section-head p{margin-top:14px}.steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}.feature-grid{grid-template-columns:1fr}.feature-main{min-height:310px}.feature-grid .feature-small:nth-child(2){grid-column:auto}.rank-layout,.news-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
        @media(max-width:520px){.hero h1{font-size:44px}.hero-sub{font-size:17px}.hero-actions,.hero-actions .btn{width:100%}.hero-notes{gap:15px}.quick-grid,.poster-grid,.categories,.feedback-grid,.scene-grid,.metrics,.guide-grid{grid-template-columns:1fr 1fr}.poster-img{height:230px}.categories .category-card{min-height:175px;padding:18px}.category-card h3{margin-top:16px}.steps{grid-template-columns:1fr}.step{border-right:0!important;border-bottom:1px solid var(--line)!important}.step:last-child{border-bottom:0!important}.rank-list{padding:8px 13px}.rank-item{grid-template-columns:30px 1fr auto;gap:8px}.rank-type{display:none}.news-item{grid-template-columns:100px 1fr;gap:12px}.news-item img{height:82px}.news-item h3{font-size:14px}.cta-box{padding:34px 24px;display:block}.cta-actions{margin-top:24px}.cta-actions .btn{width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:8px}}