/* roulang page: index */
:root{
  --ink:#231A33;
  --ink-2:#2E2342;
  --gold:#E0A64A;
  --gold-2:#C98E33;
  --mint:#6FCFC3;
  --mint-ink:#2E7C74;
  --caramel:#C96F5A;
  --paper:#F8F4EA;
  --fog:#EFEAF4;
  --text:#221D2A;
  --muted:#6B6276;
  --line:#D8CDBB;
  --white:#FFFFFF;
  --r:10px;
  --r-lg:14px;
  --pill:999px;
  --shadow:0 10px 30px rgba(35,26,51,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
}
h1,h2,h3,p,dl,dd,dt,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid rgba(224,166,74,.28);
}
.nav{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  color:#FDFAF3;font-weight:800;font-size:17px;white-space:nowrap;
}
.brand-mark{
  display:grid;place-items:center;
  width:38px;height:38px;border-radius:var(--r);
  background:var(--gold);color:var(--ink);
  font-size:15px;font-weight:800;
}
.nav-links{display:flex;gap:2px;flex:1;min-width:0}
.nav-links a{
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;border-radius:var(--pill);
  font-size:14px;color:#CFC6DD;white-space:nowrap;
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.is-active{color:var(--gold);font-weight:700}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 14px;border-radius:var(--pill);
  font-size:13px;color:#E6DCC6;
  border:1px solid rgba(224,166,74,.45);
  transition:background .2s,color .2s;
}
.chip:hover{background:rgba(224,166,74,.14)}
.chip.is-now{background:var(--gold);border-color:var(--gold);color:var(--ink);font-weight:700}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  color:#F3EEF9;
  padding:66px 0 60px;
  background:
    linear-gradient(rgba(35,26,51,.93),rgba(35,26,51,.97)),
    url("/assets/images/4d43968f66d68c32.jpg") center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(rgba(255,255,255,.28) .8px,transparent .9px),
    radial-gradient(rgba(224,166,74,.35) .8px,transparent .9px);
  background-size:88px 88px,146px 146px;
  background-position:0 0,44px 62px;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:7fr 5fr;
  gap:48px;align-items:center;
}
.hero h1{
  font-size:60px;line-height:1.2;font-weight:800;letter-spacing:-.01em;
}
.hero h1 em{color:var(--gold);font-style:normal}
.lede{
  margin-top:16px;font-size:19px;font-weight:600;color:var(--gold);
}
.hero-copy p.hero-text{
  margin-top:14px;max-width:60ch;
  font-size:16px;color:#CFC6DD;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 24px;
  border-radius:var(--pill);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;
  transition:background .2s,transform .2s,box-shadow .2s;
}
.btn--primary{background:var(--gold);color:var(--ink)}
.btn--primary:hover{background:var(--gold-2);transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:var(--gold);color:var(--gold)}
.btn--ghost:hover{background:rgba(224,166,74,.12)}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.hero-media .cover{border:1px solid rgba(224,166,74,.4);border-radius:var(--r-lg)}
.hero-stats{display:flex;gap:12px;margin-top:14px}
.hero-stat{
  flex:1;background:var(--ink-2);
  border:1px solid rgba(224,166,74,.3);
  border-radius:var(--r);padding:12px 14px;
}
.hero-stat b{
  display:block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:20px;color:var(--gold);letter-spacing:-.01em;
}
.hero-stat span{font-size:13px;color:#B9AEC9}

/* ---------- 通用封面与区块 ---------- */
.cover{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:8px;background:var(--fog)}
.cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.cover--43{aspect-ratio:4/3}
.sec{padding:72px 0}
.sec--fog{background:var(--fog)}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{font-size:32px;line-height:1.3;font-weight:800;letter-spacing:-.01em}
.sec-head p{margin-top:12px;color:var(--muted);max-width:72ch}
.tag{
  display:inline-flex;align-items:center;
  padding:2px 10px;border-radius:var(--pill);
  background:rgba(111,207,195,.18);color:var(--mint-ink);
  font-size:12px;font-weight:700;
}
.tag--hot{background:rgba(201,111,90,.16);color:#A9503C}

/* ---------- 看板 ---------- */
.board{
  display:grid;grid-template-columns:repeat(5,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
}
.board li{background:var(--paper);padding:24px}
.board .num{
  display:block;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:30px;font-weight:800;color:var(--gold);letter-spacing:-.02em;
}
.board .lbl{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- 视频卡片 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.vcard{
  display:flex;flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;
  transition:border-color .2s,box-shadow .2s;
}
.vcard:hover{border-color:var(--gold);box-shadow:var(--shadow)}
.vcard:hover .cover img{transform:scale(1.03)}
.dur{
  position:absolute;right:8px;bottom:8px;
  padding:2px 8px;border-radius:var(--pill);
  background:rgba(35,26,51,.86);color:#fff;
  font-size:12px;letter-spacing:.02em;
}
.vcard-body{padding:14px}
.vcard-body h3{
  font-size:16px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.vcard-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;margin-top:12px;font-size:13px;color:var(--muted);
}

/* ---------- 最新上传 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ucard{
  display:grid;grid-template-columns:136px 1fr;gap:14px;align-items:center;
  background:var(--white);border-radius:var(--r);
  padding:10px;
  transition:box-shadow .2s,transform .2s;
}
.ucard:hover{box-shadow:var(--shadow);transform:translateY(-1px)}
.ucard-body h3{font-size:16px;font-weight:700;line-height:1.4}
.ucard-time{margin-top:6px;font-size:13px;color:var(--muted)}
.state{
  display:inline-flex;align-items:center;
  margin-top:8px;padding:2px 10px;border-radius:var(--pill);
  border:1px solid rgba(201,111,90,.5);color:#A9503C;
  font-size:12px;font-weight:700;
}

/* ---------- 频道矩阵 ---------- */
.channels{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.channel{
  display:block;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r);padding:22px;
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.channel:hover{border-color:var(--gold);box-shadow:var(--shadow);transform:translateY(-2px)}
.channel h3{font-size:18px;font-weight:800}
.channel p{margin-top:10px;font-size:14px;color:var(--muted)}
.channel .count{
  display:block;margin-top:16px;
  font-size:13px;font-weight:700;color:var(--gold-2);
}

/* ---------- 对比表 ---------- */
.cmp-wrap{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--white)}
.cmp th,.cmp td{padding:16px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
.cmp thead th{background:var(--ink);color:#EFE9F7;font-weight:700;font-size:14px}
.cmp tbody th{background:var(--fog);font-weight:700;color:var(--text);white-space:nowrap}
.cmp tbody tr:last-child th,.cmp tbody tr:last-child td{border-bottom:0}

/* ---------- 榜单 ---------- */
.rank{
  background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;
}
.rank li{
  display:grid;grid-template-columns:60px 1fr 220px 96px;
  align-items:center;gap:16px;
  padding:14px 22px;border-bottom:1px solid var(--line);
  transition:background .2s;
}
.rank li:last-child{border-bottom:0}
.rank li:hover{background:var(--fog)}
.rank .no{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:24px;font-weight:800;color:var(--gold);line-height:1;
}
.rank .ttl{font-weight:700;font-size:16px}
.rank .plays{display:flex;align-items:center;gap:10px}
.rank .bar-track{
  flex:1;height:6px;border-radius:var(--pill);
  background:var(--fog);overflow:hidden;
}
.rank .bar-fill{display:block;height:100%;border-radius:var(--pill);background:var(--gold)}
.rank .pv{
  font-size:13px;color:var(--muted);white-space:nowrap;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}

/* ---------- 时间线 ---------- */
.timeline{display:flex;gap:0;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px}
.tl-node{
  flex:1 0 0;min-width:168px;scroll-snap-align:start;
  position:relative;padding:30px 18px 0 0;
}
.tl-node::before{
  content:"";position:absolute;left:0;right:0;top:8px;height:2px;background:var(--line);
}
.tl-dot{
  position:absolute;left:0;top:1px;
  width:16px;height:16px;border-radius:50%;
  border:2px solid var(--gold);background:var(--paper);box-sizing:border-box;
}
.tl-node.now .tl-dot{background:var(--gold)}
.tl-node h3{font-size:16px;font-weight:800}
.tl-node.now h3{color:var(--gold-2)}
.tl-node p{margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- 资讯 ---------- */
.news{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.news li{
  display:grid;grid-template-columns:158px 1fr;gap:16px;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r);padding:12px;
  transition:border-color .2s,box-shadow .2s;
}
.news li:hover{border-color:var(--gold);box-shadow:var(--shadow)}
.news h3{font-size:16px;font-weight:700;line-height:1.5}
.news .news-meta{
  display:flex;align-items:center;gap:10px;
  margin-top:10px;font-size:13px;color:var(--muted);
}
.news-more{display:flex;justify-content:center;margin-top:28px}

/* ---------- 播放保障 ---------- */
.guards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.guard{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r);padding:22px;
}
.guard svg{flex:none;width:26px;height:26px;color:var(--mint-ink)}
.guard h3{font-size:16px;font-weight:800}
.guard p{margin-top:6px;font-size:14px;color:var(--muted)}

/* ---------- 快速解答 ---------- */
.quick li{
  display:grid;grid-template-columns:280px 1fr;gap:20px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.quick li:first-child{border-top:1px solid var(--line)}
.quick strong{font-size:16px;font-weight:800}
.quick span{font-size:15px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:52px;padding:16px 0;
  font-size:16px;font-weight:700;cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";flex:none;
  width:26px;height:26px;display:grid;place-items:center;
  border-radius:50%;border:1px solid var(--line);
  color:var(--gold-2);font-size:18px;line-height:1;
  transition:transform .2s;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{max-width:860px;padding:0 0 20px;color:var(--muted);font-size:15px}

/* ---------- 订阅 ---------- */
.sub-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start}
.sub-copy h2{font-size:32px;font-weight:800;line-height:1.3}
.sub-copy p{margin-top:14px;color:var(--muted);max-width:42ch}
.sub-form{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;
}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:6px;font-size:14px;font-weight:700}
.field input[type=text],
.field input[type=email],
.field select,
.field textarea{
  width:100%;min-height:44px;padding:10px 12px;
  background:var(--white);
  border:1px solid var(--line);border-radius:8px;
  font-size:15px;transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A49BB0}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);
  box-shadow:0 0 0 3px rgba(224,166,74,.28);
}
.check{display:flex;align-items:flex-start;gap:10px;margin-bottom:18px;font-size:14px;color:var(--muted)}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--gold)}
.sub-form .btn{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);color:#C8BFD6;
  border-top:1px solid var(--gold);
  padding:56px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#FDFAF3;font-weight:800;font-size:17px}
.footer-grid p{margin-top:12px;font-size:14px;line-height:1.8;color:#AFA5C0;max-width:34ch}
.footer-col h3{font-size:15px;font-weight:800;color:#FDFAF3;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:14px;color:#AFA5C0;transition:color .2s}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(224,166,74,.28);
  font-size:13px;color:#9C92AF;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav{flex-wrap:wrap;gap:12px;padding:10px 0}
  .nav-links{order:3;flex:1 1 100%;overflow-x:auto;scrollbar-width:none}
  .nav-links::-webkit-scrollbar{display:none}
  .chips{margin-left:auto}
  .hero{padding:52px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:48px}
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .channels{grid-template-columns:repeat(3,1fr)}
  .board{grid-template-columns:repeat(5,1fr)}
  .sub-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sec{padding:56px 0}
}
@media (max-width:768px){
  .hero h1{font-size:42px}
  .sec-head h2,.sub-copy h2{font-size:24px}
  .board{grid-template-columns:repeat(2,1fr)}
  .board li:last-child{grid-column:1/-1}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .channels{grid-template-columns:repeat(2,1fr)}
  .news{grid-template-columns:1fr}
  .guards{grid-template-columns:1fr}
  .quick li{grid-template-columns:1fr;gap:4px}
  .rank li{grid-template-columns:44px 1fr 84px;gap:12px;padding:12px 16px;row-gap:6px}
  .rank .plays{grid-column:2/-1;order:3}
  .rank .tag{justify-self:end}
  .cmp thead{display:none}
  .cmp,.cmp tbody,.cmp tr,.cmp th,.cmp td{display:block;width:100%}
  .cmp tr{border-bottom:1px solid var(--line);padding:10px 0}
  .cmp tr:last-child{border-bottom:0}
  .cmp th,.cmp td{border:0;padding:6px 16px}
  .cmp tbody th{background:transparent;padding:12px 16px 4px;font-size:15px}
  .cmp td::before{
    content:attr(data-label);display:block;
    font-size:12px;font-weight:700;color:var(--muted);margin-bottom:2px;
  }
  .news li{grid-template-columns:120px 1fr}
  .footer-grid{grid-template-columns:1fr}
  .sec{padding:44px 0}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:36px}
  .lede{font-size:17px}
  .grid-4{grid-template-columns:1fr}
  .channels{grid-template-columns:1fr}
  .board{grid-template-columns:repeat(2,1fr)}
  .board li{padding:18px}
  .board .num{font-size:24px}
  .ucard{grid-template-columns:110px 1fr}
  .news li{grid-template-columns:1fr}
  .rank .bar-track{display:none}
  .rank li{grid-template-columns:36px 1fr 76px}
  .hero-stats{flex-direction:column}
  .hero-actions .btn{width:100%}
  .sub-form{padding:18px}
}