/* roulang page: index */
:root{
  --bg:#0a0c11;
  --bg-soft:#0f131b;
  --card:#151a25;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#edf1f8;
  --muted:#98a3b6;
  --gold:#f0c169;
  --gold-deep:#d29b3a;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 22px 44px -26px rgba(0,0,0,.95);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.72;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* header */
.site-head{position:sticky;top:0;z-index:60;background:rgba(10,12,17,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.head-inner{max-width:var(--container);margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,#f7d089,var(--gold-deep));color:#241703;font-weight:800;font-size:17px;box-shadow:0 10px 22px -12px rgba(240,193,105,.9)}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.main-nav a{display:inline-flex;align-items:center;min-height:42px;padding:0 15px;border-radius:999px;font-size:15px;color:var(--muted);transition:color .18s ease,background .18s ease}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.07)}
.main-nav a.is-active{color:#221603;background:linear-gradient(145deg,#f7d089,var(--gold-deep));font-weight:600}

/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.4;filter:saturate(.85)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,12,17,.55) 0%,rgba(10,12,17,.9) 62%,var(--bg) 100%)}
.hero-inner{position:relative;z-index:2;max-width:var(--container);margin:0 auto;padding:100px 24px 84px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;border:1px solid rgba(240,193,105,.36);background:rgba(240,193,105,.09);color:var(--gold);font-size:13px;letter-spacing:.16em}
.hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.16;font-weight:800;letter-spacing:-.01em;margin:22px 0 16px;max-width:820px}
.hero h1 em{font-style:normal;color:var(--gold);background:linear-gradient(180deg,transparent 66%,rgba(240,193,105,.24) 66%)}
.hero-sub{font-size:18px;color:#ccd5e4;max-width:700px}
.hero-text{margin-top:14px;max-width:660px;color:var(--muted);font-size:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px}
.hero-tags li{padding:6px 15px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(255,255,255,.03);font-size:13px;color:var(--muted)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.btn-primary{background:linear-gradient(135deg,#f8d38a,var(--gold-deep));color:#241703;box-shadow:0 16px 32px -18px rgba(240,193,105,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 36px -18px rgba(240,193,105,1)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}

/* sections */
.section{padding:76px 0;border-bottom:1px solid var(--line)}
.section-alt{background:linear-gradient(180deg,var(--bg-soft),var(--bg))}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap;margin-bottom:34px}
.sec-head h2{position:relative;padding-left:16px;font-size:clamp(21px,2.6vw,29px);font-weight:750;letter-spacing:-.01em}
.sec-head h2::before{content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--gold),var(--gold-deep))}
.sec-head p{max-width:600px;color:var(--muted);font-size:15px}

/* grids */
.grid{display:grid;gap:20px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.card:hover{transform:translateY(-5px);border-color:rgba(240,193,105,.42);box-shadow:var(--shadow)}
.card-media{position:relative;aspect-ratio:2/3;overflow:hidden;background:linear-gradient(160deg,#1d2331,#10131b)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.06)}
.badge{position:absolute;left:10px;top:10px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;color:var(--gold);background:rgba(10,12,17,.78);border:1px solid rgba(240,193,105,.42);backdrop-filter:blur(6px)}
.card-body{padding:13px 14px 16px}
.card-body h3{font-size:15px;font-weight:650;line-height:1.45;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-meta{margin-top:6px;font-size:13px;color:var(--muted)}
.score{color:var(--gold);font-weight:700}

/* channels */
.channel a{display:block;height:100%;padding:26px 24px;border-radius:var(--radius);background:linear-gradient(150deg,#171d29,#10141c);border:1px solid var(--line);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.channel a:hover{transform:translateY(-4px);border-color:rgba(240,193,105,.45);box-shadow:var(--shadow)}
.channel h3{font-size:18px;font-weight:700;margin-bottom:10px}
.channel p{color:var(--muted);font-size:14px;line-height:1.7}
.channel-go{display:inline-block;margin-top:16px;font-size:13px;color:var(--gold)}

/* ranking */
.rank-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 20px}
.rank-item{display:grid;grid-template-columns:42px minmax(0,1fr) auto auto auto;align-items:center;gap:12px;padding:13px 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);transition:border-color .2s ease,background .2s ease}
.rank-item:hover{border-color:rgba(240,193,105,.4);background:#18202e}
.rank-no{font-size:16px;font-weight:800;color:var(--gold);text-align:center}
.rank-name{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tag{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;color:#cfd8e8;background:rgba(255,255,255,.07);border:1px solid var(--line)}
.rank-heat{font-size:13px;color:var(--muted)}

/* news */
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.news-card:hover{transform:translateY(-4px);border-color:rgba(240,193,105,.42);box-shadow:var(--shadow)}
.news-card img{width:100%;height:158px;object-fit:cover}
.news-body{padding:14px 16px 18px}
.news-tag{display:inline-block;margin-bottom:8px;font-size:12px;color:var(--gold)}
.news-body h3{font-size:15px;font-weight:600;line-height:1.6}

/* faq */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 22px;transition:border-color .2s ease}
.faq-item[open]{border-color:rgba(240,193,105,.4)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 0;font-size:15px;font-weight:600;cursor:pointer;list-style:none;min-height:48px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--gold);font-size:20px;line-height:1;transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 0 20px;color:var(--muted);font-size:15px}

/* footer */
.site-foot{background:#080a0f;border-top:1px solid var(--line);padding:58px 0 0}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}
.foot-brand p{margin-top:14px;color:var(--muted);font-size:14px;max-width:330px}
.foot-title{font-size:15px;font-weight:700;margin-bottom:16px}
.foot-list li{margin-bottom:10px}
.foot-list a{font-size:14px;color:var(--muted);transition:color .18s ease}
.foot-list a:hover{color:var(--gold)}
.foot-bottom{margin-top:44px;border-top:1px solid var(--line);padding:18px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#6f7a8d}

/* responsive */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .hero-inner{padding:80px 24px 68px}
  .section{padding:62px 0}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:768px){
  .head-inner{flex-wrap:wrap;gap:10px;padding:12px 18px}
  .main-nav{width:100%;flex-wrap:nowrap;overflow-x:auto;gap:4px;scrollbar-width:none}
  .main-nav::-webkit-scrollbar{display:none}
  .main-nav a{white-space:nowrap;min-height:44px;padding:0 14px;font-size:14px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .rank-list{grid-template-columns:1fr}
  .rank-heat{display:none}
  .hero-inner{padding:58px 20px 54px}
  .hero-sub{font-size:16px}
  .section{padding:54px 0}
  .sec-head{margin-bottom:26px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .grid{gap:14px}
  .hero h1{font-size:29px}
  .hero-actions .btn{width:100%}
  .card-body h3{font-size:14px}
  .container{padding:0 16px}
  .hero-inner{padding:48px 16px 46px}
  .rank-item{grid-template-columns:36px minmax(0,1fr) auto;gap:10px;padding:12px 14px}
  .foot-grid{grid-template-columns:1fr}
}