:root{
  --body:#0E1013;
  --panel:#16191E;
  --line:#2A2E35;
  --blue:#3D7BFF;
  --red:#E5484D;
  --text:#F2F3F5;
  --sub:#8A8F98;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--body);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-weight:700;line-height:1.35;letter-spacing:.5px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* 顶栏 */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(14,16,19,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.header-inner{
  max-width:1180px;margin:0 auto;padding:12px 20px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:32px;width:auto;border-radius:4px}
.brand-name{font-size:19px;font-weight:700;letter-spacing:1px}
.signal{display:inline-flex;align-items:flex-end;gap:2px;height:14px;margin-left:2px}
.signal i{display:block;width:3px;background:var(--blue);border-radius:1px;opacity:.85}
.signal i:nth-child(1){height:5px}
.signal i:nth-child(2){height:9px}
.signal i:nth-child(3){height:13px}
.main-nav{
  display:flex;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none;
}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{
  padding:6px 12px;border-radius:5px;font-size:14px;color:var(--sub);
  white-space:nowrap;transition:color .18s,background .18s;
}
.main-nav a:hover{color:var(--text);background:#1D2127}
.header-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:6px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:20px;padding:6px 14px;color:var(--sub);font-size:13px;
}
.search-box span{white-space:nowrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 20px;border-radius:6px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:background .18s,transform .06s,box-shadow .18s;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 0 14px rgba(61,123,255,.35)}
.btn-primary:hover{background:#5589ff}
.btn-ghost{background:#22262D;color:var(--text);border-color:#33383F}
.btn-ghost:hover{background:#2A2F37}

/* 通用容器 */
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
section{padding:64px 0}
.sec-head{margin-bottom:28px}
.sec-num{
  display:block;font-size:13px;color:var(--sub);letter-spacing:3px;
  margin-bottom:8px;font-family:ui-monospace,Menlo,Consolas,monospace;
}
.sec-head h2{font-size:clamp(21px,3vw,30px)}
.sec-head p{color:var(--sub);margin-top:8px;font-size:14px;max-width:640px}

/* 电视屏框 */
.screen{
  position:relative;border:1px solid var(--line);border-radius:6px;
  overflow:hidden;background:#08090B;aspect-ratio:16/9;
}
.screen img{width:100%;height:100%;object-fit:cover}
.osd{
  position:absolute;left:0;right:0;bottom:0;
  background:rgba(0,0,0,.66);
  padding:7px 10px;font-size:11px;color:#D5D8DE;
  display:flex;justify-content:space-between;gap:8px;
  font-family:ui-monospace,Menlo,Consolas,monospace;
  border-top:1px solid rgba(255,255,255,.08);
}
.osd .osd-left{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.osd .osd-right{color:var(--sub);flex-shrink:0}
.live-dot{
  position:absolute;top:9px;right:9px;z-index:2;
  display:inline-flex;align-items:center;gap:5px;
  background:rgba(0,0,0,.6);padding:3px 8px;border-radius:3px;
  font-size:11px;color:var(--text);
}
.live-dot::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--red);
  animation:blink 1.6s infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}
.chan-num{
  position:absolute;top:8px;left:10px;z-index:2;
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:13px;color:#fff;background:rgba(0,0,0,.55);
  padding:2px 7px;border-radius:3px;
}

/* 首屏 */
.hero{padding-top:52px;padding-bottom:36px}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.hero-time{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--sub);font-size:13px;margin-bottom:14px;
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.hero h1{font-size:clamp(26px,4.4vw,44px);letter-spacing:1px;margin-bottom:16px}
.hero p.lead{color:var(--sub);font-size:15px;margin-bottom:8px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.data-band{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);border-radius:6px;
  margin-top:36px;background:var(--panel);
}
.data-band div{padding:18px 16px;text-align:center;border-right:1px solid var(--line)}
.data-band div:last-child{border-right:none}
.data-band strong{
  display:block;font-size:clamp(20px,3vw,28px);color:var(--blue);
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.data-band span{font-size:12px;color:var(--sub)}

/* 横滑 */
.hscroll{
  display:flex;gap:16px;overflow-x:auto;padding-bottom:12px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:#33383F transparent;
}
.hscroll::-webkit-scrollbar{height:6px}
.hscroll::-webkit-scrollbar-thumb{background:#33383F;border-radius:3px}
.hscroll .screen{flex:0 0 300px;scroll-snap-align:start}
@media(min-width:768px){.hscroll .screen{flex:0 0 340px}}

/* 节目单 */
.epg-grid{display:grid;grid-template-columns:96px 1fr;gap:14px}
.epg-stations{display:flex;flex-direction:column;gap:12px}
.station{
  height:76px;display:flex;align-items:center;justify-content:center;
  background:var(--panel);border:1px solid var(--line);border-radius:6px;
  font-size:13px;font-weight:700;color:var(--text);text-align:center;
}
.epg-axis{display:flex;flex-direction:column;gap:10px}
.epg-row{
  display:flex;gap:8px;height:76px;align-items:stretch;
}
.epg-slot{
  flex:1;border:1px solid var(--line);border-radius:5px;
  background:#111419;padding:8px 10px;font-size:12px;color:var(--sub);
  display:flex;flex-direction:column;justify-content:center;min-width:0;
}
.epg-slot b{color:var(--text);font-weight:600;font-size:13px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.epg-slot.on{background:#152242;border-color:var(--blue);color:#A9C2FF}
.epg-slot.on b{color:#fff}
.epg-slot .rbtn{color:var(--blue);font-size:11px;margin-top:2px}
.epg-note{font-size:12px;color:var(--sub);margin-top:14px}
.epg-timebar{display:flex;gap:8px;margin-top:0;margin-left:110px;font-size:11px;color:#5C626B;font-family:ui-monospace,Menlo,Consolas,monospace}
.epg-timebar span{flex:1;text-align:center}

/* 频道分类 */
.cat-grid{display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:start}
.cat-list{display:flex;flex-direction:column;gap:2px}
.cat-list li{
  list-style:none;padding:9px 12px;font-size:14px;color:var(--sub);
  border-left:2px solid transparent;
}
.cat-list li.active{color:var(--blue);border-left-color:var(--blue);font-weight:600}
.cat-links{font-size:13px;color:var(--sub);margin-bottom:16px}
.cat-links a{color:var(--blue);margin-right:12px}
.chan-rows{display:flex;flex-direction:column;gap:1px;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.chan-row{
  display:grid;grid-template-columns:56px 1.1fr 1.6fr 100px;gap:12px;align-items:center;
  padding:13px 14px;background:var(--panel);font-size:13px;
}
.chan-row:nth-child(even){background:#191D23}
.chan-row .num{font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--sub)}
.chan-row .nm{font-weight:600}
.chan-row .prog{color:var(--sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar{height:4px;background:#23272E;border-radius:2px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--blue);border-radius:2px}

/* 投屏四连 */
.cast-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cast-card{max-width:320px}
.cast-card .screen{aspect-ratio:16/9}
.cast-card h3{font-size:15px;margin-top:12px}
.cast-card p{font-size:13px;color:var(--sub);margin-top:4px}
.cast-card small{display:block;font-size:11px;color:#5C626B;margin-top:6px}

/* 换线 */
.split{display:grid;grid-template-columns:4fr 6fr;gap:40px;align-items:center}
.tips{display:flex;flex-direction:column;gap:22px;margin-top:22px}
.tip{display:flex;gap:14px}
.tip .ico{
  flex-shrink:0;width:34px;height:34px;border:1px solid #33383F;border-radius:6px;
  display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:16px;
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.tip b{display:block;font-size:15px}
.tip p{font-size:13px;color:var(--sub);margin-top:2px}

/* 弹幕 */
.danmu-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.danmu-list{display:flex;flex-direction:column;gap:18px}
.danmu-list li{list-style:none;display:flex;gap:12px;align-items:flex-start}
.danmu-list .dot{width:6px;height:6px;border-radius:50%;background:var(--blue);margin-top:10px;flex-shrink:0}
.danmu-list b{display:block;font-size:15px}
.danmu-list p{font-size:13px;color:var(--sub)}

/* 三步 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.step{
  border:1px solid var(--line);border-radius:6px;padding:18px;background:var(--panel);
}
.step .no{font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--blue);font-size:13px}
.step b{display:block;margin-top:6px;font-size:15px}
.step p{font-size:13px;color:var(--sub);margin-top:4px}
.emulator-shot{margin-top:28px;max-width:760px}

/* 劝退 */
.dim-block{background:#101318;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.dim-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:24px}
.dim-grid div{border-left:2px solid #2A2E35;padding-left:16px}
.dim-grid b{display:block;color:#B9BEC6;font-size:15px}
.dim-grid p{color:#6B7078;font-size:13px;margin-top:4px}

/* FAQ */
.faq{max-width:820px;margin-top:20px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{
  cursor:pointer;font-size:15px;font-weight:600;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue);font-size:18px;font-family:ui-monospace,Menlo,Consolas,monospace}
.faq details[open] summary::after{content:"−"}
.faq p{color:var(--sub);font-size:14px;margin-top:10px}

/* 下载 */
.dl-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--panel);
}
.dl-col{padding:26px 22px;border-right:1px dashed #33383F}
.dl-col:last-child{border-right:none}
.dl-col h3{font-size:16px;margin-bottom:6px}
.dl-col p{font-size:13px;color:var(--sub);margin-bottom:14px}
.qr{
  width:92px;height:92px;border:1px solid var(--line);border-radius:4px;
  background:#0B0D10;display:flex;align-items:center;justify-content:center;
  color:#494F58;font-size:11px;margin-top:12px;
}
.dl-actions{display:flex;flex-wrap:wrap;gap:10px}
.dl-actions .btn{width:100%;max-width:180px}

/* 页脚 */
.site-footer{
  border-top:1px solid var(--line);background:#0B0D10;padding:44px 0 26px;
  font-size:13px;color:#6B7078;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg,#1B2029 0 6px,transparent 6px 12px);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 2fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:8px;color:#B9BEC6;font-weight:700;font-size:15px}
.footer-brand img{height:24px;border-radius:3px}
.footer-grid p{margin-top:10px;font-size:12px;line-height:1.7;max-width:280px}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.footer-links ul{list-style:none}
.footer-links h4{font-size:12px;color:#8A8F98;margin-bottom:8px;font-weight:600}
.footer-links li{margin-bottom:6px}
.footer-links a{font-size:12px;color:#6B7078;transition:color .18s}
.footer-links a:hover{color:var(--text)}
.footer-meta{text-align:right;font-size:12px}
.footer-meta a{color:#6B7078}
.footer-meta a:hover{color:var(--text)}
.footer-meta p{margin-top:8px}
.time-note{font-size:12px;color:#4E545D;margin-top:6px}

/* 断点 */
@media(max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .cast-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:26px}
  .danmu-grid{grid-template-columns:1fr;gap:26px}
  .cat-grid{grid-template-columns:1fr}
  .cat-list{flex-direction:row;flex-wrap:wrap;gap:6px}
  .cat-list li{border-left:none;background:var(--panel);border:1px solid var(--line);border-radius:5px}
  .cat-list li.active{border-color:var(--blue);background:#152242}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-meta{text-align:left;grid-column:1/-1}
}
@media(max-width:767px){
  section{padding:46px 0}
  .header-inner{flex-wrap:wrap;gap:10px;padding:10px 16px}
  .main-nav{order:3;width:100%;flex:0 0 100%}
  .header-right{margin-left:auto}
  .search-box{display:none}
  .data-band{grid-template-columns:1fr}
  .data-band div{border-right:none;border-bottom:1px solid var(--line);padding:13px}
  .data-band div:last-child{border-bottom:none}
  .epg-grid{grid-template-columns:1fr}
  .epg-stations{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:6px}
  .station{flex:0 0 78px;height:44px;font-size:12px}
  .epg-row{flex-direction:column;height:auto;gap:6px}
  .epg-slot{min-height:56px}
  .epg-timebar{display:none}
  .chan-row{grid-template-columns:44px 1fr;gap:8px;row-gap:4px}
  .chan-row .prog,.chan-row .barwrap{grid-column:2}
  .chan-row .barwrap{display:flex;align-items:center;gap:8px}
  .chan-row .bar{flex:1}
  .cast-grid{grid-template-columns:1fr;gap:26px}
  .cast-card{max-width:100%}
  .steps{grid-template-columns:1fr}
  .dim-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .dl-col{border-right:none;border-bottom:1px dashed #33383F}
  .dl-col:last-child{border-bottom:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{grid-template-columns:repeat(2,1fr)}
  .hscroll .screen{flex:0 0 82vw}
}