/* t391f.cn — Modern streaming UI · glassmorphism · domain-scoped class names */
:root{
  --t391f-bg:#07070d;
  --t391f-bg-2:#0e0a1c;
  --t391f-surface:rgba(255,255,255,.06);
  --t391f-surface-2:rgba(255,255,255,.10);
  --t391f-border:rgba(255,255,255,.12);
  --t391f-text:#f4f5fb;
  --t391f-muted:#a4a8c4;
  --t391f-accent:#7c5cff;
  --t391f-accent-2:#22d3ee;
  --t391f-pink:#ff4d8d;
  --t391f-radius:14px;
  --t391f-shadow:0 10px 40px -10px rgba(124,92,255,.45);
  --t391f-trans:.28s cubic-bezier(.4,.0,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--t391f-bg);color:var(--t391f-text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
body{background:radial-gradient(1200px 600px at 10% -10%,rgba(124,92,255,.25),transparent 60%),radial-gradient(900px 500px at 100% 0%,rgba(34,211,238,.18),transparent 60%),var(--t391f-bg)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t391f-trans)}
a:hover{color:var(--t391f-accent-2)}

/* ==== Header / Nav ==== */
.t391f-header{position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);background:rgba(7,7,13,.55);border-bottom:1px solid var(--t391f-border)}
.t391f-nav-wrap{max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:24px;padding:14px 24px}
.t391f-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:.5px}
.t391f-logo svg{width:38px;height:38px;filter:drop-shadow(0 0 8px rgba(124,92,255,.6))}
.t391f-nav{display:flex;gap:6px;flex:1;flex-wrap:wrap;justify-content:center}
.t391f-nav a{padding:8px 14px;border-radius:10px;font-size:14px;color:var(--t391f-muted);transition:all var(--t391f-trans);position:relative}
.t391f-nav a:hover,.t391f-nav a.t391f-active{color:#fff;background:var(--t391f-surface)}
.t391f-nav a.t391f-active::after{content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--t391f-accent),var(--t391f-accent-2))}
.t391f-search{flex:0 0 260px;position:relative}
.t391f-search input{width:100%;padding:10px 14px 10px 38px;border-radius:999px;border:1px solid var(--t391f-border);background:var(--t391f-surface);color:#fff;outline:none;transition:all var(--t391f-trans);font-size:14px}
.t391f-search input::placeholder{color:var(--t391f-muted)}
.t391f-search input:focus{border-color:var(--t391f-accent);background:var(--t391f-surface-2);box-shadow:0 0 0 3px rgba(124,92,255,.18)}
.t391f-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--t391f-muted)}

/* ==== Hero ==== */
.t391f-hero{position:relative;max-width:1280px;margin:24px auto;padding:0 24px}
.t391f-hero-card{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--t391f-border);box-shadow:var(--t391f-shadow)}
.t391f-hero-card img{width:100%;height:auto;display:block}
.t391f-hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(7,7,13,.85));display:flex;align-items:flex-end;padding:32px}
.t391f-hero-text h1{font-size:clamp(22px,3vw,38px);line-height:1.2;margin-bottom:8px;background:linear-gradient(120deg,#fff,#c9b8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.t391f-hero-text p{color:var(--t391f-muted);max-width:640px;font-size:14px}

/* ==== Breadcrumb ==== */
.t391f-crumb{max-width:1280px;margin:8px auto;padding:0 24px;color:var(--t391f-muted);font-size:13px}
.t391f-crumb a{color:var(--t391f-muted)}
.t391f-crumb a:hover{color:var(--t391f-text)}

/* ==== Section ==== */
.t391f-section{max-width:1280px;margin:32px auto;padding:0 24px}
.t391f-section h2{font-size:clamp(18px,2.2vw,26px);margin-bottom:6px;display:flex;align-items:center;gap:10px}
.t391f-section h2::before{content:"";width:4px;height:22px;border-radius:2px;background:linear-gradient(180deg,var(--t391f-accent),var(--t391f-accent-2))}
.t391f-section .t391f-sub{color:var(--t391f-muted);margin-bottom:20px;font-size:14px}

/* ==== Grid / Cards ==== */
.t391f-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.t391f-card{background:var(--t391f-surface);border:1px solid var(--t391f-border);border-radius:var(--t391f-radius);overflow:hidden;transition:transform var(--t391f-trans),box-shadow var(--t391f-trans),border-color var(--t391f-trans);position:relative;backdrop-filter:blur(10px)}
.t391f-card:hover{transform:translateY(-6px);border-color:rgba(124,92,255,.5);box-shadow:0 18px 40px -16px rgba(124,92,255,.55)}
.t391f-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.t391f-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.t391f-card:hover .t391f-thumb img{transform:scale(1.06)}
.t391f-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 40%,rgba(0,0,0,.55));opacity:0;transition:opacity var(--t391f-trans);display:flex;align-items:center;justify-content:center}
.t391f-card:hover .t391f-mask{opacity:1}
.t391f-play{width:62px;height:62px;border-radius:50%;background:rgba(255,255,255,.18);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.35);transform:scale(.85);transition:transform var(--t391f-trans)}
.t391f-card:hover .t391f-play{transform:scale(1)}
.t391f-play::before{content:"";border-style:solid;border-width:10px 0 10px 16px;border-color:transparent transparent transparent #fff;margin-left:4px}
.t391f-meta{padding:14px 16px}
.t391f-meta h3{font-size:15px;line-height:1.45;margin-bottom:6px;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.t391f-meta p{font-size:12.5px;color:var(--t391f-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.t391f-tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:999px;background:rgba(124,92,255,.18);color:#cdbfff;margin-bottom:8px;border:1px solid rgba(124,92,255,.3)}

/* ==== Reviews ==== */
.t391f-reviews{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.t391f-review{background:var(--t391f-surface);border:1px solid var(--t391f-border);border-radius:var(--t391f-radius);padding:18px;backdrop-filter:blur(8px)}
.t391f-review .t391f-stars{color:#ffce4d;font-size:14px;margin-bottom:8px}
.t391f-review p{color:var(--t391f-muted);font-size:13.5px;margin-bottom:10px}
.t391f-review .t391f-by{font-size:12px;color:#cdbfff}

/* ==== Contact ==== */
.t391f-contact{display:grid;grid-template-columns:1.2fr 1fr;gap:20px}
.t391f-contact-card{background:var(--t391f-surface);border:1px solid var(--t391f-border);border-radius:var(--t391f-radius);padding:22px;backdrop-filter:blur(8px)}
.t391f-contact-card h3{font-size:16px;margin-bottom:12px;color:#fff}
.t391f-contact-card ul{list-style:none}
.t391f-contact-card li{padding:6px 0;font-size:14px;color:var(--t391f-muted);display:flex;justify-content:space-between;border-bottom:1px dashed var(--t391f-border)}
.t391f-contact-card li:last-child{border:none}
.t391f-contact-card li b{color:#fff;font-weight:500}

/* ==== Share ==== */
.t391f-share{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}
.t391f-share a{width:40px;height:40px;border-radius:50%;background:var(--t391f-surface);border:1px solid var(--t391f-border);display:flex;align-items:center;justify-content:center;transition:all var(--t391f-trans)}
.t391f-share a:hover{transform:translateY(-3px);background:var(--t391f-accent);color:#fff}
.t391f-share svg{width:18px;height:18px}

/* ==== FAQ ==== */
.t391f-faq details{background:var(--t391f-surface);border:1px solid var(--t391f-border);border-radius:12px;padding:14px 18px;margin-bottom:10px;backdrop-filter:blur(8px);transition:all var(--t391f-trans)}
.t391f-faq details[open]{background:var(--t391f-surface-2);border-color:rgba(124,92,255,.4)}
.t391f-faq summary{cursor:pointer;font-weight:500;list-style:none;display:flex;justify-content:space-between;align-items:center}
.t391f-faq summary::-webkit-details-marker{display:none}
.t391f-faq summary::after{content:"+";font-size:22px;color:var(--t391f-accent-2);transition:transform var(--t391f-trans)}
.t391f-faq details[open] summary::after{content:"−"}
.t391f-faq p{margin-top:10px;color:var(--t391f-muted);font-size:14px;line-height:1.7}

/* ==== Footer ==== */
.t391f-footer{margin-top:60px;border-top:1px solid var(--t391f-border);background:rgba(7,7,13,.6);backdrop-filter:blur(10px);padding:36px 24px 22px}
.t391f-footer-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.t391f-footer h4{font-size:14px;margin-bottom:12px;color:#fff}
.t391f-footer ul{list-style:none}
.t391f-footer li{padding:4px 0;font-size:13px;color:var(--t391f-muted)}
.t391f-footer li a:hover{color:var(--t391f-accent-2)}
.t391f-copy{max-width:1280px;margin:24px auto 0;padding-top:18px;border-top:1px solid var(--t391f-border);text-align:center;color:var(--t391f-muted);font-size:12.5px}

/* ==== Responsive ==== */
@media (max-width:880px){
  .t391f-nav{order:3;width:100%;justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}
  .t391f-search{flex:1}
  .t391f-contact{grid-template-columns:1fr}
  .t391f-footer-inner{grid-template-columns:1fr 1fr}
  .t391f-hero-overlay{padding:18px}
}
@media (max-width:520px){
  .t391f-footer-inner{grid-template-columns:1fr}
  .t391f-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .t391f-meta{padding:10px 12px}
  .t391f-meta h3{font-size:13px}
}