:root{
  --ink-0:#041116;
  --ink-1:#071b22;
  --ink-2:#0b252e;
  --ink-3:#10313b;
  --teal:#14c4a8;
  --aqua:#22d8c2;
  --deep:#0e8fa6;
  --gold:#f1c67a;
  --red:#ff5d6c;
  --text:#e8faf5;
  --muted:#93bdb4;
  --muted-2:#6fa098;
  --line:rgba(46,214,192,.16);
  --line-strong:rgba(46,214,192,.34);
  --glow:rgba(20,196,168,.32);
  --radius:18px;
  --wrap:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  background:var(--ink-0);
  color:var(--text);
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px}
.watermark{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.watermark::before{
  content:"";position:absolute;top:-280px;left:50%;transform:translateX(-50%);
  width:1100px;height:560px;border-radius:50%;
  background:radial-gradient(ellipse at center,rgba(20,196,168,.22),transparent 68%);
  animation:breathe 9s ease-in-out infinite;
}
.watermark::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(46,214,192,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,214,192,.045) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
}
@keyframes breathe{0%,100%{opacity:.65}50%{opacity:1}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(4,17,22,.82);
  backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:border-color .35s,background .35s;
}
.site-header.stuck{border-bottom-color:var(--line);background:rgba(4,17,22,.94)}
.header-bar{display:flex;align-items:center;justify-content:space-between;height:66px;transition:height .35s}
.site-header.stuck .header-bar{height:58px}
.brand{font-size:21px;font-weight:800;letter-spacing:1px;display:flex;align-items:center;gap:9px;color:var(--text)}
.brand i{width:7px;height:20px;border-radius:4px;background:linear-gradient(180deg,var(--aqua),var(--deep));display:inline-block}
.nav-menu{display:flex;align-items:center;gap:30px}
.nav-menu a{font-size:15px;color:var(--muted);transition:color .25s;position:relative}
.nav-menu a:hover{color:var(--aqua)}
.nav-menu a.pg{color:var(--aqua)}
.nav-toggle{display:none;font-size:24px;color:var(--text);line-height:1}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:12px;font-size:16px;font-weight:700;transition:transform .25s,box-shadow .25s,background .25s,border-color .25s;letter-spacing:.5px}
.btn-solid{background:linear-gradient(135deg,var(--aqua),var(--deep));color:#03231f;box-shadow:0 10px 30px -8px var(--glow)}
.btn-solid:hover{transform:translateY(-3px);box-shadow:0 16px 38px -8px var(--glow)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text);background:rgba(20,196,168,.06)}
.btn-ghost:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-3px)}

/* ---------- hero ---------- */
.hero-stage{position:relative;z-index:1;padding:128px 0 76px;text-align:center}
.hero-core{max-width:820px;margin:0 auto}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:7px 18px;border-radius:999px;border:1px solid var(--line);background:rgba(12,39,48,.7);font-size:13.5px;color:var(--muted);margin-bottom:26px}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--red);animation:blink 1.4s infinite}
@keyframes blink{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(255,93,108,.5)}50%{opacity:.45;box-shadow:0 0 0 6px rgba(255,93,108,0)}}
.hero-seal{width:64px;height:64px;margin:0 auto 22px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 35%,rgba(34,216,194,.35),rgba(14,143,166,.15));border:1px solid var(--line-strong)}
.hero-seal svg{width:34px;height:34px}
.hero-title{font-size:clamp(32px,5.2vw,54px);font-weight:900;line-height:1.25;letter-spacing:1px;margin-bottom:18px}
.hero-title em{font-style:normal;background:linear-gradient(120deg,var(--aqua),#8ff0df 55%,var(--gold));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-lead{font-size:16.5px;color:var(--muted);max-width:680px;margin:0 auto 34px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:46px}
.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:760px;margin:0 auto}
.metric{padding:20px 14px;border-radius:var(--radius);background:linear-gradient(180deg,rgba(16,49,59,.55),rgba(11,37,46,.35));border:1px solid var(--line)}
.metric b{display:block;font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--aqua);letter-spacing:.5px}
.metric span{font-size:13.5px;color:var(--muted)}
.hero-shot{position:relative;margin:56px auto 0;max-width:1040px;border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:0 40px 90px -40px rgba(0,0,0,.8)}
.hero-shot img{width:100%;aspect-ratio:16/8.6;object-fit:cover;animation:kenburns 16s ease-in-out infinite alternate}
@keyframes kenburns{from{transform:scale(1)}to{transform:scale(1.06)}}
.hero-shot::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(4,17,22,.72))}
.shot-tag{position:absolute;left:22px;bottom:18px;z-index:2;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600}
.shot-tag .live-chip{background:var(--red);color:#fff;padding:4px 12px;border-radius:999px;font-size:12.5px;display:flex;align-items:center;gap:6px}
.shot-views{position:absolute;right:22px;bottom:20px;z-index:2;font-size:13.5px;color:#dff7f1;background:rgba(4,17,22,.55);padding:5px 13px;border-radius:999px;border:1px solid var(--line)}

/* ---------- common block ---------- */
.block{position:relative;z-index:1;padding:72px 0}
.block-head{text-align:center;max-width:640px;margin:0 auto 46px}
.block-kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:3px;color:var(--aqua);text-transform:uppercase;margin-bottom:12px}
.block-kicker::before,.block-kicker::after{content:"·";margin:0 10px;color:var(--gold)}
.block-title{font-size:clamp(25px,3.6vw,37px);font-weight:800;letter-spacing:.5px;margin-bottom:12px}
.block-sub{font-size:15.5px;color:var(--muted)}

/* ---------- live spotlight + list ---------- */
.stream-wrap{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch}
.stream-spotlight{border-radius:22px;overflow:hidden;border:1px solid var(--line);background:var(--ink-2);display:flex;flex-direction:column;transition:border-color .35s,box-shadow .35s}
.stream-spotlight:hover{border-color:var(--line-strong);box-shadow:0 30px 70px -38px var(--glow)}
.spot-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.spot-media img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.stream-spotlight:hover .spot-media img{transform:scale(1.05)}
.spot-live{position:absolute;top:14px;left:14px;background:var(--red);color:#fff;font-size:12.5px;font-weight:700;padding:5px 13px;border-radius:999px;display:flex;align-items:center;gap:6px}
.spot-heat{position:absolute;top:14px;right:14px;background:rgba(4,17,22,.6);border:1px solid var(--line);color:#dff7f1;font-size:12.5px;padding:5px 12px;border-radius:999px}
.spot-body{padding:22px 24px 24px}
.spot-name{font-size:21px;font-weight:800;margin-bottom:6px}
.spot-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.spot-tags span{font-size:12.5px;color:var(--aqua);border:1px solid var(--line);border-radius:8px;padding:2px 10px;background:rgba(20,196,168,.07)}
.spot-desc{font-size:14px;color:var(--muted);margin-bottom:16px}
.spot-foot{display:flex;align-items:center;justify-content:space-between}
.spot-aud{font-size:13.5px;color:var(--gold)}
.spot-go{font-size:14px;font-weight:700;color:var(--aqua);display:inline-flex;align-items:center;gap:6px}
.stream-list{display:flex;flex-direction:column;gap:14px}
.stream-row{display:flex;align-items:center;gap:16px;padding:13px 16px;border-radius:16px;background:var(--ink-2);border:1px solid var(--line);transition:transform .3s,border-color .3s}
.stream-row:hover{transform:translateX(6px);border-color:var(--line-strong)}
.row-thumb{position:relative;width:84px;height:84px;flex:0 0 84px;border-radius:12px;overflow:hidden}
.row-thumb img{width:100%;height:100%;object-fit:cover}
.row-thumb::after{content:"LIVE";position:absolute;left:5px;top:5px;background:var(--red);color:#fff;font-size:10px;font-weight:700;padding:1px 7px;border-radius:6px}
.row-info{flex:1;min-width:0}
.row-name{font-size:16px;font-weight:700;margin-bottom:4px;display:flex;align-items:center;gap:8px}
.row-sex{width:17px;height:17px;border-radius:50%;background:var(--deep);color:#dff;font-size:10px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}
.row-tags{font-size:12.5px;color:var(--muted-2);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-stat{font-size:12.5px;color:var(--muted)}
.row-go{flex:0 0 auto;font-size:13px;font-weight:700;color:var(--aqua);border:1px solid var(--line-strong);border-radius:10px;padding:7px 15px;transition:background .25s}
.row-go:hover{background:rgba(20,196,168,.14)}

/* ---------- channels ---------- */
.channel-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.channel-tile{display:flex;gap:0;border-radius:20px;overflow:hidden;border:1px solid var(--line);background:var(--ink-2);transition:transform .35s,border-color .35s,box-shadow .35s}
.channel-tile:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:0 26px 60px -34px var(--glow)}
.tile-media{flex:0 0 42%;position:relative;overflow:hidden}
.tile-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.channel-tile:hover .tile-media img{transform:scale(1.07)}
.tile-body{padding:20px 22px;display:flex;flex-direction:column;justify-content:center}
.tile-name{font-size:18.5px;font-weight:800;margin-bottom:6px}
.tile-desc{font-size:13.5px;color:var(--muted);margin-bottom:12px}
.tile-hot{font-size:13px;color:var(--gold);display:flex;align-items:center;gap:7px}

/* ---------- features ---------- */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.feature-cell{display:flex;gap:20px;padding:28px;border-radius:20px;background:linear-gradient(180deg,rgba(16,49,59,.5),rgba(11,37,46,.3));border:1px solid var(--line);border-left:3px solid var(--teal);transition:transform .35s,border-color .35s}
.feature-cell:hover{transform:translateY(-6px);border-left-color:var(--gold);border-color:var(--line-strong)}
.cell-ico{flex:0 0 56px;width:56px;height:56px;border-radius:14px;background:rgba(20,196,168,.12);border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.cell-ico svg{width:28px;height:28px;stroke:var(--aqua);fill:none;stroke-width:1.7}
.cell-title{font-size:18px;font-weight:800;margin-bottom:7px}
.cell-text{font-size:14px;color:var(--muted)}

/* ---------- join banner ---------- */
.join-banner{position:relative;border-radius:24px;border:1px solid var(--line);background:linear-gradient(120deg,rgba(14,143,166,.22),rgba(11,37,46,.55) 55%,rgba(20,196,168,.16));overflow:hidden;padding:44px 46px;display:grid;grid-template-columns:1.5fr 1fr;gap:30px;align-items:center}
.join-banner::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--aqua),var(--gold),transparent)}
.join-title{font-size:25px;font-weight:800;margin-bottom:10px}
.join-text{font-size:14.5px;color:var(--muted);margin-bottom:0}
.join-points{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.join-points li{display:flex;align-items:center;gap:9px;font-size:14px;background:rgba(4,17,22,.4);border:1px solid var(--line);border-radius:11px;padding:11px 14px}
.join-points b{color:var(--gold);font-size:18px;font-weight:800}

/* ---------- qa ---------- */
.qa-block{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.qa-item{border:1px solid var(--line);border-radius:15px;background:var(--ink-2);overflow:hidden;transition:border-color .3s}
.qa-item.open{border-color:var(--line-strong)}
.qa-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:19px 23px;font-size:16px;font-weight:700;text-align:left}
.qa-q i{font-style:normal;color:var(--aqua);font-size:21px;font-weight:400;transition:transform .35s;flex:0 0 auto}
.qa-item.open .qa-q i{transform:rotate(45deg)}
.qa-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 23px}
.qa-item.open .qa-a{max-height:340px;padding-bottom:20px}
.qa-a p{font-size:14.5px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{position:relative;z-index:1;margin-top:70px;border-top:1px solid var(--line);background:rgba(5,19,25,.85)}
.footer-main{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:36px;padding:54px 0 38px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--muted);max-width:360px}
.footer-col h4{font-size:15.5px;font-weight:700;margin-bottom:16px}
.footer-col a{display:block;font-size:13.5px;color:var(--muted);margin-bottom:9px;transition:color .25s}
.footer-col a:hover{color:var(--aqua)}
.footer-base{border-top:1px solid var(--line);padding:20px 0 26px;font-size:12.5px;color:var(--muted-2);text-align:center;line-height:2}
.footer-base .warn{color:var(--gold)}

/* ---------- toast ---------- */
.tip-bar{position:fixed;left:50%;bottom:38px;transform:translate(-50%,120px);z-index:999;display:flex;align-items:center;gap:9px;background:linear-gradient(135deg,var(--aqua),var(--deep));color:#03231f;font-weight:700;font-size:14.5px;padding:13px 26px;border-radius:12px;box-shadow:0 18px 44px -12px var(--glow);transition:transform .4s ease;pointer-events:none}
.tip-bar.show{transform:translate(-50%,0)}

/* ---------- subpage ---------- */
.doc{position:relative;z-index:1;padding:122px 0 64px}
.doc-head{margin-bottom:30px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.doc-crumb{font-size:13.5px;color:var(--muted-2);margin-bottom:10px}
.doc-crumb a{color:var(--muted);transition:color .25s}
.doc-crumb a:hover{color:var(--aqua)}
.doc-title{font-size:32px;font-weight:900;color:var(--aqua);margin-bottom:8px}
.doc-meta{font-size:13.5px;color:var(--muted-2)}
.doc-body{border:1px solid var(--line);border-radius:22px;background:linear-gradient(180deg,rgba(16,49,59,.4),rgba(11,37,46,.28));padding:40px 42px}
.doc-body h2{font-size:19.5px;font-weight:800;color:var(--aqua);margin:28px 0 12px}
.doc-body h2:first-child{margin-top:0}
.doc-body h3{font-size:16px;font-weight:700;margin:20px 0 8px}
.doc-body p{font-size:15px;color:var(--text);margin-bottom:12px}
.doc-body ul{list-style:none;margin-bottom:14px}
.doc-body li{position:relative;padding-left:20px;font-size:14.5px;margin-bottom:8px;color:var(--text)}
.doc-body li::before{content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--teal)}
.doc-body strong{color:var(--aqua);font-weight:700}
.doc-body a.link{color:var(--gold);text-decoration:underline}
.doc-form{margin-top:8px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;padding:12px 15px;border-radius:11px;border:1px solid var(--line);background:var(--ink-0);color:var(--text);font-size:14px;font-family:inherit;outline:none;transition:border-color .25s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--aqua)}
.field select option{background:var(--ink-1)}
.field textarea{min-height:126px;resize:vertical}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .nav-toggle{display:block}
  .nav-menu{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;background:rgba(4,17,22,.98);border-bottom:1px solid var(--line);padding:8px 22px 16px;display:none}
  .nav-menu.open{display:flex}
  .nav-menu a{width:100%;padding:12px 0;font-size:15px;border-bottom:1px solid rgba(46,214,192,.08)}
  .hero-stage{padding:108px 0 60px}
  .stream-wrap{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .join-banner{grid-template-columns:1fr;padding:34px 28px}
  .footer-main{grid-template-columns:1fr 1fr;gap:28px}
  .hero-shot img{aspect-ratio:16/10}
}
@media(max-width:620px){
  .hero-metrics{grid-template-columns:1fr;max-width:380px}
  .tile-media{flex-basis:38%}
  .join-points{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr}
  .doc-body{padding:28px 22px}
  .hero-actions .btn{width:100%;max-width:320px}
  .stream-row{gap:12px;padding:11px}
  .row-thumb{width:68px;height:68px;flex-basis:68px}
}