/* f3lt7.cn - R星必出精品 modern streaming UI */
:root{
  --f3lt7-bg:#070912;
  --f3lt7-bg2:#0e1227;
  --f3lt7-fg:#e7ecf5;
  --f3lt7-mute:#9aa3b2;
  --f3lt7-cyan:#7df9ff;
  --f3lt7-mag:#a855f7;
  --f3lt7-pink:#ff5fa2;
  --f3lt7-glass:rgba(255,255,255,.06);
  --f3lt7-glass-bd:rgba(255,255,255,.12);
  --f3lt7-radius:18px;
  --f3lt7-grad:linear-gradient(135deg,#7df9ff 0%,#a855f7 60%,#ff5fa2 100%);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body.f3lt7-body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,sans-serif;
  background:radial-gradient(1200px 700px at 10% -10%,rgba(125,249,255,.18),transparent 60%),
             radial-gradient(900px 700px at 90% 0,rgba(168,85,247,.22),transparent 60%),
             linear-gradient(180deg,var(--f3lt7-bg) 0%,var(--f3lt7-bg2) 100%);
  color:var(--f3lt7-fg);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* Header */
.f3lt7-header{position:sticky;top:0;z-index:50;padding:14px 20px}
.f3lt7-glass-nav{
  background:var(--f3lt7-glass);
  border:1px solid var(--f3lt7-glass-bd);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-radius:var(--f3lt7-radius);
  padding:10px 16px;
  max-width:1280px;margin:0 auto;
  box-shadow:0 10px 40px -10px rgba(0,0,0,.5);
}
.f3lt7-nav-inner{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.f3lt7-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.f3lt7-brand{font-size:16px;margin:0;background:var(--f3lt7-grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700;letter-spacing:.5px;white-space:nowrap}
.f3lt7-nav{display:flex;gap:6px;flex:1;flex-wrap:wrap;justify-content:center}
.f3lt7-nav-link{
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--f3lt7-mute);
  transition:all .25s ease;border:1px solid transparent;
}
.f3lt7-nav-link:hover{color:#fff;background:rgba(255,255,255,.06);border-color:var(--f3lt7-glass-bd);transform:translateY(-1px)}
.f3lt7-nav-link.f3lt7-active{color:#0a0e1c;background:var(--f3lt7-grad);font-weight:600}
.f3lt7-search{display:flex;align-items:center;background:rgba(255,255,255,.05);border:1px solid var(--f3lt7-glass-bd);border-radius:999px;padding:4px 6px 4px 14px;transition:all .25s}
.f3lt7-search:focus-within{border-color:var(--f3lt7-cyan);box-shadow:0 0 0 4px rgba(125,249,255,.15)}
.f3lt7-search input{background:transparent;border:0;outline:0;color:#fff;width:240px;font-size:13px;padding:6px 0}
.f3lt7-search input::placeholder{color:#6b7589}
.f3lt7-search button{border:0;width:32px;height:32px;border-radius:50%;background:var(--f3lt7-grad);color:#0a0e1c;cursor:pointer;display:flex;align-items:center;justify-content:center}

/* Main */
.f3lt7-main{max-width:1280px;margin:0 auto;padding:24px 20px 40px}

/* Hero */
.f3lt7-hero{
  border-radius:24px;padding:60px 36px;margin:14px 0 26px;
  background:linear-gradient(135deg,rgba(125,249,255,.12),rgba(168,85,247,.12)),
    radial-gradient(600px 300px at 80% 20%,rgba(255,95,162,.18),transparent 70%);
  border:1px solid var(--f3lt7-glass-bd);
  position:relative;overflow:hidden;
}
.f3lt7-hero::before{content:"";position:absolute;inset:-2px;border-radius:24px;background:var(--f3lt7-grad);z-index:-1;filter:blur(40px);opacity:.18}
.f3lt7-hero-inner{max-width:780px}
.f3lt7-tag{display:inline-block;padding:6px 12px;border-radius:999px;background:rgba(125,249,255,.12);color:var(--f3lt7-cyan);font-size:12px;letter-spacing:.5px;border:1px solid rgba(125,249,255,.3)}
.f3lt7-hero-title{font-size:36px;line-height:1.25;margin:14px 0 12px;background:var(--f3lt7-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.f3lt7-hero-sub{color:var(--f3lt7-mute);font-size:15px;line-height:1.8;margin:0 0 22px}
.f3lt7-cta{display:flex;gap:12px;flex-wrap:wrap}
.f3lt7-btn{display:inline-flex;align-items:center;padding:12px 22px;border-radius:999px;font-size:14px;font-weight:600;transition:all .25s;border:1px solid transparent;cursor:pointer}
.f3lt7-btn-primary{background:var(--f3lt7-grad);color:#0a0e1c}
.f3lt7-btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px -10px rgba(168,85,247,.6)}
.f3lt7-btn-ghost{border-color:var(--f3lt7-glass-bd);color:#fff;background:rgba(255,255,255,.04)}
.f3lt7-btn-ghost:hover{background:rgba(255,255,255,.1)}

/* Crumbs */
.f3lt7-crumbs{font-size:13px;color:var(--f3lt7-mute);padding:8px 0 16px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.f3lt7-crumbs a{color:var(--f3lt7-cyan)}
.f3lt7-crumb-sep{color:#3a4255}

/* Channel */
.f3lt7-channel-hero{padding:30px 0 14px}
.f3lt7-channel-h2{font-size:28px;margin:0 0 8px;background:var(--f3lt7-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.f3lt7-channel-desc{color:var(--f3lt7-mute);font-size:15px;line-height:1.8;margin:0;max-width:880px}

/* Section */
.f3lt7-section{margin:36px 0}
.f3lt7-h3{font-size:20px;margin:0 0 18px;display:flex;align-items:center;gap:10px}
.f3lt7-h3::before{content:"";width:4px;height:20px;border-radius:4px;background:var(--f3lt7-grad)}

/* Grid + Card */
.f3lt7-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.f3lt7-card{
  background:var(--f3lt7-glass);
  border:1px solid var(--f3lt7-glass-bd);
  border-radius:var(--f3lt7-radius);
  overflow:hidden;
  transition:all .35s ease;
  backdrop-filter:blur(10px);
}
.f3lt7-card:hover{transform:translateY(-4px);border-color:rgba(125,249,255,.4);box-shadow:0 20px 60px -20px rgba(125,249,255,.25)}
.f3lt7-card-link{display:block;color:inherit}
.f3lt7-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#10142a}
.f3lt7-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.f3lt7-card:hover .f3lt7-cover img{transform:scale(1.08)}
.f3lt7-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.7));opacity:0;transition:opacity .35s}
.f3lt7-card:hover .f3lt7-cover::after{opacity:1}
.f3lt7-duration{position:absolute;right:8px;bottom:8px;background:rgba(0,0,0,.7);color:#fff;font-size:12px;padding:3px 8px;border-radius:6px;font-variant-numeric:tabular-nums;z-index:2}
.f3lt7-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s;z-index:3}
.f3lt7-card:hover .f3lt7-play{opacity:1;transform:scale(1.1)}
.f3lt7-meta{padding:14px 16px 16px}
.f3lt7-card-title{font-size:14px;line-height:1.5;margin:0 0 8px;color:#fff;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.f3lt7-card-desc{font-size:12px;color:var(--f3lt7-mute);line-height:1.6;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.f3lt7-card-foot{display:flex;justify-content:space-between;font-size:11px;color:#6b7589}

/* Reviews */
.f3lt7-reviews{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.f3lt7-review{margin:0;padding:18px;background:var(--f3lt7-glass);border:1px solid var(--f3lt7-glass-bd);border-radius:14px;backdrop-filter:blur(8px)}
.f3lt7-review-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:14px}
.f3lt7-stars{color:#fbbf24;font-size:13px}
.f3lt7-review p{margin:0;font-size:13px;color:var(--f3lt7-mute);line-height:1.7}

/* Contact */
.f3lt7-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.f3lt7-contact-card{padding:22px;background:var(--f3lt7-glass);border:1px solid var(--f3lt7-glass-bd);border-radius:14px}
.f3lt7-contact-card h4{margin:0 0 12px;color:var(--f3lt7-cyan);font-size:16px}
.f3lt7-contact-card p{margin:6px 0;color:var(--f3lt7-mute);font-size:13px;line-height:1.7}
.f3lt7-contact-card a{color:var(--f3lt7-cyan)}
.f3lt7-contact-json{margin:0;padding:18px;background:#080b1a;border:1px solid var(--f3lt7-glass-bd);border-radius:14px;color:#7df9ff;font-size:12px;line-height:1.7;overflow:auto;font-family:ui-monospace,Menlo,Consolas,monospace}
.f3lt7-share{margin-top:18px;display:flex;gap:10px;align-items:center;flex-wrap:wrap;color:var(--f3lt7-mute);font-size:13px}
.f3lt7-share-btn{padding:8px 16px;border-radius:999px;background:var(--f3lt7-glass);border:1px solid var(--f3lt7-glass-bd);font-size:13px;transition:all .25s}
.f3lt7-share-btn:hover{background:var(--f3lt7-grad);color:#0a0e1c;border-color:transparent;transform:translateY(-2px)}

/* FAQ */
.f3lt7-faq{display:flex;flex-direction:column;gap:10px}
.f3lt7-faq-item{background:var(--f3lt7-glass);border:1px solid var(--f3lt7-glass-bd);border-radius:12px;padding:14px 18px;transition:all .25s}
.f3lt7-faq-item[open]{border-color:rgba(125,249,255,.4);background:rgba(125,249,255,.04)}
.f3lt7-faq-item summary{cursor:pointer;font-size:14px;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center}
.f3lt7-faq-item summary::after{content:"+";color:var(--f3lt7-cyan);font-size:20px;transition:transform .3s}
.f3lt7-faq-item[open] summary::after{transform:rotate(45deg)}
.f3lt7-faq-item p{margin:10px 0 0;color:var(--f3lt7-mute);font-size:13px;line-height:1.8}

/* Footer */
.f3lt7-footer{margin-top:50px;padding:36px 20px 24px;background:rgba(0,0,0,.35);border-top:1px solid var(--f3lt7-glass-bd)}
.f3lt7-foot-grid{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.f3lt7-foot-col h5{margin:0 0 10px;font-size:14px;color:#fff}
.f3lt7-foot-col h5 a{color:var(--f3lt7-cyan)}
.f3lt7-foot-col p{font-size:12px;color:var(--f3lt7-mute);line-height:1.7;margin:0 0 10px}
.f3lt7-foot-col ul{list-style:none;padding:0;margin:0;font-size:12px}
.f3lt7-foot-col li{margin-bottom:6px}
.f3lt7-foot-col li a{color:#9aa3b2;transition:color .2s}
.f3lt7-foot-col li a:hover{color:var(--f3lt7-cyan)}
.f3lt7-foot-bottom{max-width:1280px;margin:24px auto 0;padding-top:18px;border-top:1px solid var(--f3lt7-glass-bd);font-size:12px;color:#6b7589;text-align:center;line-height:1.9}

@media (max-width:768px){
  .f3lt7-hero{padding:40px 20px}
  .f3lt7-hero-title{font-size:24px}
  .f3lt7-channel-h2{font-size:22px}
  .f3lt7-search input{width:140px}
  .f3lt7-contact-grid{grid-template-columns:1fr}
  .f3lt7-brand{font-size:14px}
}