:root{
  --room:#0A1220;
  --panel:#111C2E;
  --cyan:#35C8E8;
  --gold:#E8B84B;
  --orange:#FF5A1F;
  --text:#D8E2F0;
  --muted:#7D8DA6;
  --line:rgba(53,200,232,.22);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--room);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  line-height:1.7;
  overflow-x:hidden;
}
img{display:block;max-width:100%;}
a{color:var(--cyan);text-decoration:none;}
.serif{font-family:Georgia,"Songti SC","SimSun",serif;}
.mono{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;letter-spacing:.02em;}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px;}

/* 顶栏 */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(10,18,32,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  display:flex;align-items:center;gap:18px;
  max-width:1180px;margin:0 auto;padding:12px 20px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand img{height:34px;width:auto;border-radius:4px;}
.brand-name{
  font-size:20px;font-weight:800;letter-spacing:.18em;color:#fff;white-space:nowrap;
}
.brand-4k{
  font-family:"SFMono-Regular",Consolas,monospace;
  font-size:11px;font-weight:700;color:var(--gold);
  border:1px solid var(--gold);border-radius:3px;
  padding:1px 5px;letter-spacing:.06em;
}
.nav-links{
  display:flex;gap:20px;flex:1;min-width:0;
  overflow-x:auto;scrollbar-width:none;
}
.nav-links::-webkit-scrollbar{display:none;}
.nav-links a{
  color:var(--muted);font-size:14px;white-space:nowrap;
  padding:4px 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s;
}
.nav-links a:hover{color:var(--cyan);border-color:var(--cyan);}
.search-box{
  flex-shrink:0;display:flex;align-items:center;gap:6px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:20px;padding:6px 14px;min-width:180px;
}
.search-box input{
  background:transparent;border:none;outline:none;color:var(--text);
  font-size:13px;width:100%;
}
.search-box input::placeholder{color:#5A6B84;}
.search-box .ico{color:var(--muted);font-size:13px;}
.btn-dl{
  flex-shrink:0;display:inline-block;background:var(--cyan);color:#06121C;
  font-size:14px;font-weight:700;padding:8px 20px;border-radius:20px;
  transition:transform .2s,box-shadow .2s;
}
.btn-dl:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(53,200,232,.35);}

/* 首屏 */
.hero{padding:52px 0 40px;}
.hero-grid{
  display:grid;grid-template-columns:1fr 1.12fr;gap:44px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);letter-spacing:.06em;margin-bottom:18px;
}
.hero-eyebrow .dot{
  width:6px;height:6px;border-radius:50%;background:var(--orange);
  display:inline-block;
}
.hero h1{
  font-size:40px;line-height:1.25;font-weight:800;letter-spacing:.06em;
  color:#fff;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--cyan);}
.hero-desc{font-size:15px;color:#A7B5C8;margin-bottom:10px;max-width:460px;}
.hero-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;}
.btn-primary,.btn-ghost{
  display:inline-block;font-size:15px;font-weight:700;padding:12px 30px;border-radius:24px;
  transition:transform .2s,box-shadow .2s,background .2s;
}
.btn-primary{background:var(--cyan);color:#06121C;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(53,200,232,.35);}
.btn-ghost{border:1px solid var(--line);color:var(--cyan);}
.btn-ghost:hover{background:rgba(53,200,232,.08);transform:translateY(-2px);}

.screen-frame{
  border:1px solid var(--line);
  background:#050B14;border-radius:6px;padding:8px;
  box-shadow:0 18px 44px rgba(0,0,0,.55);
}
.screen-frame img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:3px;
}
.screen-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 6px 2px;font-size:12px;color:var(--muted);
}
.screen-bar .bar-line{flex:1;height:2px;background:rgba(53,200,232,.18);margin:0 10px;position:relative;}
.screen-bar .bar-line::before{content:"";position:absolute;left:0;top:0;width:42%;height:2px;background:var(--cyan);}
.screen-meta{
  font-size:12px;color:var(--muted);margin-top:10px;text-align:right;
}

/* 数据带 */
.stats-band{
  margin-top:46px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(3,1fr);
}
.stat-cell{
  padding:22px 18px;text-align:center;
  border-right:1px solid var(--line);
}
.stat-cell:last-child{border-right:none;}
.stat-num{
  font-size:26px;font-weight:700;color:var(--cyan);line-height:1.2;
}
.stat-label{font-size:13px;color:var(--muted);margin-top:4px;}

/* 通用区块 */
section{padding:64px 0;}
.sec-head{margin-bottom:30px;}
.sec-no{
  font-size:13px;color:var(--cyan);letter-spacing:.12em;margin-bottom:8px;display:block;
}
.sec-title{
  font-size:26px;font-weight:800;color:#fff;letter-spacing:.05em;
  display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;
}
.sec-title .en{
  font-size:12px;color:var(--muted);font-weight:400;letter-spacing:.2em;
}

/* 专区文字链接 */
.genre-bar{
  padding:18px 0;border-bottom:1px solid var(--line);margin-bottom:34px;
  display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;
}
.genre-bar::-webkit-scrollbar{display:none;}
.genre-bar a{
  font-size:14px;color:var(--muted);white-space:nowrap;
  padding:5px 14px;border-radius:3px;transition:color .2s,background .2s;
}
.genre-bar a.on,.genre-bar a:hover{color:var(--cyan);background:rgba(53,200,232,.08);}

/* 碟架 */
.shelf{
  display:flex;gap:18px;overflow-x:auto;padding-bottom:26px;
  scrollbar-width:none;position:relative;
}
.shelf::-webkit-scrollbar{display:none;}
.disc{
  position:relative;flex:0 0 178px;
  background:rgba(53,200,232,.05);
  border:8px solid rgba(53,200,232,.13);
  border-radius:4px;
  padding-top:0;
  overflow:hidden;
}
.disc::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--cyan);opacity:.85;z-index:3;
}
.disc-poster{
  position:relative;aspect-ratio:2/3;overflow:hidden;
}
.disc-poster img{
  width:100%;height:100%;object-fit:cover;
}
.disc-poster::after{
  content:"";position:absolute;top:0;left:0;width:16%;height:100%;
  background:linear-gradient(105deg,rgba(255,255,255,.2),rgba(255,255,255,0));
  transform:skewX(-12deg);pointer-events:none;
}
.disc-spine{
  position:absolute;top:0;left:0;bottom:0;width:24px;
  background:rgba(10,18,32,.72);
  writing-mode:vertical-rl;text-orientation:upright;
  font-family:Georgia,"Songti SC",serif;
  font-size:11px;color:#C9D7E8;letter-spacing:.16em;
  display:flex;align-items:center;justify-content:center;
  padding:14px 0;z-index:2;
}
.disc-badge{
  position:absolute;top:8px;right:8px;z-index:3;
  background:var(--orange);color:#fff;font-size:11px;
  padding:2px 7px;border-radius:2px;font-weight:600;
}
.disc-ultra{
  position:absolute;bottom:8px;right:8px;z-index:3;
  font-family:"SFMono-Regular",Consolas,monospace;
  font-size:9px;color:var(--gold);letter-spacing:.08em;
  border:1px solid var(--gold);padding:1px 4px;border-radius:2px;
  background:rgba(10,18,32,.65);
}
.disc-no{
  position:absolute;bottom:22px;left:11px;z-index:3;
  font-family:"SFMono-Regular",Consolas,monospace;
  font-size:11px;color:#9FB2C8;
}
.disc-rack{
  height:0;border-bottom:1px solid rgba(53,200,232,.35);
  box-shadow:0 10px 20px -8px rgba(0,0,0,.9);
  margin-top:-16px;
}
.disc-link:hover .disc-poster img{transform:scale(1.03);transition:transform .3s;}
.disc-link{display:block;}

/* 详情双栏 */
.detail-grid{
  display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:start;
}
.detail-list{border-top:1px dashed rgba(125,141,166,.3);}
.detail-row{
  display:grid;grid-template-columns:96px 1fr;gap:14px;
  padding:12px 0;border-bottom:1px dashed rgba(125,141,166,.3);
  font-size:14px;
}
.detail-row dt{color:var(--muted);}
.detail-row dd{color:var(--text);}
.detail-note{font-size:12px;color:var(--muted);margin-top:16px;line-height:1.7;}

/* 换源三列 */
.source-grid{
  display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center;
}
.source-item{
  padding:16px 0;border-bottom:1px solid rgba(53,200,232,.12);
}
.source-item:last-child{border-bottom:none;}
.source-head{display:flex;align-items:center;gap:10px;margin-bottom:4px;}
.source-name{font-weight:700;color:#E6EEF9;font-size:15px;}
.source-state{
  font-size:12px;padding:1px 8px;border-radius:2px;
  font-family:"SFMono-Regular",Consolas,monospace;
}
.state-ok{color:var(--cyan);border:1px solid rgba(53,200,232,.5);}
.state-slow{color:var(--gold);border:1px solid rgba(232,184,75,.5);}
.state-backup{color:var(--muted);border:1px solid rgba(125,141,166,.4);}
.source-desc{font-size:13px;color:var(--muted);}

/* 播放器图例 */
.legend-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:28px 34px;
  margin-top:12px;
}
.legend-item{display:flex;gap:12px;align-items:flex-start;}
.legend-ico{
  flex-shrink:0;width:30px;height:30px;border:1px solid var(--line);
  border-radius:4px;display:flex;align-items:center;justify-content:center;
}
.legend-ico span{display:block;width:14px;height:2px;background:var(--cyan);position:relative;}
.legend-ico span::after{
  content:"";position:absolute;top:-4px;left:5px;width:2px;height:10px;background:var(--cyan);
}
.legend-name{font-size:14px;font-weight:700;color:#E6EEF9;margin-bottom:2px;}
.legend-desc{font-size:12px;color:var(--muted);line-height:1.6;}

/* 参数表 */
.table-box{border-top:1px solid var(--line);}
.table-row{
  display:grid;grid-template-columns:180px 1fr;gap:16px;
  padding:14px 4px;border-bottom:1px solid rgba(53,200,232,.12);
  font-size:14px;
}
.table-row .tk{color:var(--muted);}
.table-row .tv{color:var(--text);font-family:"SFMono-Regular",Consolas,monospace;letter-spacing:.01em;}

/* 劝退 */
.plain-block{background:var(--panel);border:1px solid rgba(125,141,166,.15);border-radius:6px;padding:36px;}
.plain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.plain-item h3{font-size:15px;color:#B9C6D8;margin-bottom:8px;font-weight:700;}
.plain-item p{font-size:13px;color:var(--muted);line-height:1.8;}

/* 常见问题 */
.faq-list{border-top:1px solid var(--line);}
.faq-list details{border-bottom:1px solid rgba(53,200,232,.12);}
.faq-list summary{
  list-style:none;cursor:pointer;padding:16px 30px 16px 4px;
  font-size:15px;color:#E6EEF9;position:relative;font-weight:600;
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  color:var(--cyan);font-size:18px;font-weight:400;
}
.faq-list details[open] summary::after{content:"−";}
.faq-list .faq-a{padding:0 4px 18px;font-size:14px;color:#A7B5C8;max-width:760px;}

/* 下载 */
.dl-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  margin-top:10px;
}
.dl-col{
  padding:0 28px;border-right:1px dashed rgba(53,200,232,.2);
}
.dl-col:first-child{padding-left:0;}
.dl-col:last-child{border-right:none;padding-right:0;}
.dl-col h3{font-size:16px;color:#fff;margin-bottom:10px;}
.dl-col p{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.qr-block{
  width:96px;height:96px;border-radius:4px;overflow:hidden;
  border:1px solid var(--line);margin-bottom:16px;background:var(--panel);
}
.qr-block img{width:100%;height:100%;object-fit:cover;}
.btn-dl-solid{
  display:inline-block;background:var(--cyan);color:#06121C;
  font-size:14px;font-weight:700;padding:9px 22px;border-radius:20px;
  transition:transform .2s,box-shadow .2s;
}
.btn-dl-solid:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(53,200,232,.35);}

/* 页脚 */
footer{
  border-top:1px solid var(--line);padding:40px 0 30px;
  font-size:12px;color:#5A6B84;
}
.foot-top{
  display:grid;grid-template-columns:1.4fr 2fr;gap:40px;align-items:start;
}
.foot-brand{display:flex;align-items:center;gap:8px;margin-bottom:10px;}
.foot-brand img{height:26px;width:auto;border-radius:3px;}
.foot-brand span{font-size:15px;font-weight:700;color:#95A7BD;letter-spacing:.14em;}
.foot-desc{line-height:1.8;color:#5A6B84;max-width:320px;}
.foot-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.foot-col h4{font-size:12px;color:#7D8DA6;margin-bottom:8px;font-weight:600;letter-spacing:.06em;}
.foot-col a{display:block;color:#5A6B84;font-size:12px;margin-bottom:5px;transition:color .2s;}
.foot-col a:hover{color:var(--cyan);}
.foot-bottom{
  margin-top:30px;padding-top:16px;border-top:1px solid rgba(53,200,232,.1);
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
}
.foot-bottom a{color:#5A6B84;}
.foot-bottom a:hover{color:var(--cyan);}
.barcode{
  margin-top:18px;height:16px;width:120px;
  background:repeating-linear-gradient(90deg,#2A3A52 0 1px,transparent 1px 3px,#2A3A52 3px 5px,transparent 5px 8px);
  opacity:.6;
}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero h1{font-size:32px;}
  .hero-desc{max-width:none;}
  .detail-grid,.source-grid{grid-template-columns:1fr;gap:28px;}
  .legend-grid{grid-template-columns:repeat(2,1fr);}
  .plain-grid{grid-template-columns:1fr 1fr;}
  .foot-top{grid-template-columns:1fr;gap:26px;}
  .disc{flex:0 0 156px;}
}
@media (max-width:768px){
  .topbar-inner{flex-wrap:wrap;gap:10px;padding:10px 16px;}
  .nav-links{order:3;flex:1 0 100%;gap:16px;}
  .search-box{display:none;}
  .brand-name{font-size:17px;}
  .hero{padding:34px 0 26px;}
  .hero h1{font-size:26px;letter-spacing:.03em;}
  .hero-desc{font-size:14px;}
  .stats-band{grid-template-columns:1fr;}
  .stat-cell{border-right:none;border-bottom:1px solid var(--line);padding:16px;}
  .stat-cell:last-child{border-bottom:none;}
  .sec-title{font-size:21px;}
  .disc{flex:0 0 128px;}
  .disc-spine{width:20px;font-size:10px;}
  .detail-row{grid-template-columns:80px 1fr;font-size:13px;}
  .legend-grid{grid-template-columns:1fr;gap:20px;}
  .plain-grid{grid-template-columns:1fr;gap:22px;}
  .plain-block{padding:24px;}
  .table-row{grid-template-columns:110px 1fr;font-size:13px;}
  .dl-grid{grid-template-columns:1fr;gap:26px;}
  .dl-col{padding:0;border-right:none;border-bottom:1px dashed rgba(53,200,232,.2);padding-bottom:24px;}
  .dl-col:last-child{border-bottom:none;padding-bottom:0;}
  .foot-links{grid-template-columns:1fr 1fr;}
  section{padding:44px 0;}
}