:root {
  --qcw813-primary: #7c5cff;
  --qcw813-primary-2: #22d3ee;
  --qcw813-accent: #a3ff57;
  --qcw813-bg-1: #050814;
  --qcw813-bg-2: #0d1530;
  --qcw813-text: #f3f4ff;
  --qcw813-muted: #a0a4c0;
  --qcw813-glass: rgba(255,255,255,.06);
  --qcw813-glass-bd: rgba(255,255,255,.12);
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
.qcw813-body{
  background: radial-gradient(1200px 600px at 80% -10%, color-mix(in srgb, var(--qcw813-primary) 35%, transparent), transparent 60%),
              radial-gradient(900px 500px at -10% 30%, color-mix(in srgb, var(--qcw813-primary-2) 30%, transparent), transparent 55%),
              linear-gradient(180deg, var(--qcw813-bg-1), var(--qcw813-bg-2));
  background-attachment: fixed;
  color: var(--qcw813-text);
  font: 15px/1.65 -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.qcw813-container{max-width:1240px;margin:0 auto;padding:0 22px}

/* HEADER */
.qcw813-header{position:sticky;top:0;z-index:50;transition:.3s}
.qcw813-nav-blur{backdrop-filter: blur(18px) saturate(160%); -webkit-backdrop-filter: blur(18px) saturate(160%);
  background: color-mix(in srgb, var(--qcw813-bg-1) 70%, transparent);
  border-bottom:1px solid var(--qcw813-glass-bd);
}
.qcw813-header.is-scrolled .qcw813-nav-blur{background: color-mix(in srgb, var(--qcw813-bg-1) 88%, transparent);}
.qcw813-nav-inner{display:flex;gap:18px;align-items:center;height:66px}
.qcw813-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.qcw813-brand{font-size:18px;margin:0;font-weight:800;letter-spacing:.5px;
  background:linear-gradient(90deg,var(--qcw813-primary),var(--qcw813-primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.qcw813-nav{display:flex;gap:6px;flex:1;flex-wrap:wrap;margin-left:8px}
.qcw813-nav-link{padding:8px 14px;border-radius:999px;font-size:14px;color:var(--qcw813-muted);transition:.2s;position:relative}
.qcw813-nav-link:hover{color:var(--qcw813-text);background:var(--qcw813-glass)}
.qcw813-nav-link.is-active{color:#fff;background:linear-gradient(90deg,var(--qcw813-primary),var(--qcw813-primary-2));box-shadow:0 8px 24px -10px var(--qcw813-primary)}
.qcw813-search{display:flex;align-items:center;gap:6px;background:var(--qcw813-glass);border:1px solid var(--qcw813-glass-bd);border-radius:999px;padding:6px 10px 6px 14px;transition:.2s}
.qcw813-search:focus-within{border-color:var(--qcw813-primary);box-shadow:0 0 0 4px color-mix(in srgb,var(--qcw813-primary) 25%,transparent)}
.qcw813-search input{background:none;border:0;outline:0;color:#fff;width:200px;font-size:14px}
.qcw813-search button{background:linear-gradient(135deg,var(--qcw813-primary),var(--qcw813-primary-2));color:#fff;border:0;border-radius:999px;width:32px;height:32px;display:grid;place-items:center;cursor:pointer}
@media(max-width:780px){
  .qcw813-search input{width:120px}
  .qcw813-brand{font-size:15px}
  .qcw813-nav-link{padding:6px 10px;font-size:13px}
}

/* CRUMBS */
.qcw813-crumbs{font-size:13px;color:var(--qcw813-muted);padding:14px 0}
.qcw813-crumbs a:hover{color:var(--qcw813-text)}
.qcw813-crumb-sep{margin:0 8px;opacity:.5}

/* HERO */
.qcw813-hero{position:relative;border-radius:24px;overflow:hidden;margin:8px 22px 32px;max-width:1240px}
@media(min-width:1284px){.qcw813-hero{margin-left:auto;margin-right:auto}}
.qcw813-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:blur(2px) brightness(.45) saturate(1.2);transform:scale(1.05)}
.qcw813-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,color-mix(in srgb,var(--qcw813-primary) 60%,transparent),color-mix(in srgb,var(--qcw813-primary-2) 40%,transparent))}
.qcw813-hero-inner{position:relative;padding:90px 22px;text-align:center}
.qcw813-tag{display:inline-block;padding:6px 14px;border:1px solid var(--qcw813-glass-bd);background:var(--qcw813-glass);border-radius:999px;font-size:12px;letter-spacing:1px;backdrop-filter:blur(10px)}
.qcw813-hero-title{font-size:clamp(32px,6vw,58px);margin:18px 0 14px;font-weight:900;letter-spacing:1px;
  background:linear-gradient(90deg,#fff,color-mix(in srgb,var(--qcw813-accent) 70%,#fff));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 8px 40px rgba(0,0,0,.4)}
.qcw813-hero-sub{max-width:720px;margin:0 auto 28px;color:#dde0f5;opacity:.92}
.qcw813-hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.qcw813-btn{padding:12px 22px;border-radius:999px;background:var(--qcw813-glass);border:1px solid var(--qcw813-glass-bd);font-size:14px;backdrop-filter:blur(8px);transition:.25s}
.qcw813-btn:hover{background:linear-gradient(135deg,var(--qcw813-primary),var(--qcw813-primary-2));border-color:transparent;transform:translateY(-2px);box-shadow:0 14px 30px -12px var(--qcw813-primary)}

/* CHANNEL HERO */
.qcw813-channel-hero{padding:60px 0 30px;text-align:center}

/* SECTION */
.qcw813-section{padding:46px 0}
.qcw813-sec-alt{background:linear-gradient(180deg, transparent, color-mix(in srgb, var(--qcw813-primary) 8%, transparent), transparent)}
.qcw813-sec-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:8px;gap:12px;flex-wrap:wrap}
.qcw813-h2{font-size:clamp(22px,3vw,30px);margin:0;font-weight:800;
  background:linear-gradient(90deg,#fff,color-mix(in srgb,var(--qcw813-accent) 60%,#fff));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.qcw813-more{font-size:13px;color:var(--qcw813-muted)}
.qcw813-more:hover{color:var(--qcw813-accent)}
.qcw813-sec-intro{color:var(--qcw813-muted);margin:6px 0 22px;max-width:780px}

/* CARD GRID */
.qcw813-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.qcw813-card{background:var(--qcw813-glass);border:1px solid var(--qcw813-glass-bd);border-radius:18px;overflow:hidden;backdrop-filter:blur(12px);transition:.3s;cursor:pointer;display:flex;flex-direction:column}
.qcw813-card:hover,.qcw813-card.is-active{transform:translateY(-6px);border-color:color-mix(in srgb,var(--qcw813-primary) 60%,transparent);box-shadow:0 20px 50px -20px color-mix(in srgb,var(--qcw813-primary) 70%,transparent)}
.qcw813-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.qcw813-thumb img{width:100%;height:100%;object-fit:cover;transition:.6s}
.qcw813-card:hover .qcw813-thumb img,.qcw813-card.is-active .qcw813-thumb img{transform:scale(1.08)}
.qcw813-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.55));opacity:.7;transition:.3s}
.qcw813-card:hover .qcw813-thumb::after{opacity:1}
.qcw813-dur{position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,.65);color:#fff;font-size:11px;padding:3px 8px;border-radius:6px;z-index:2;backdrop-filter:blur(4px)}
.qcw813-play{position:absolute;inset:0;display:grid;place-items:center;opacity:0;transform:scale(.8);transition:.35s;z-index:3}
.qcw813-play svg{filter:drop-shadow(0 6px 18px rgba(0,0,0,.6));background:color-mix(in srgb,var(--qcw813-primary) 80%,transparent);border-radius:999px;padding:14px;width:64px;height:64px}
.qcw813-card:hover .qcw813-play,.qcw813-card.is-active .qcw813-play{opacity:1;transform:scale(1)}
.qcw813-card-body{padding:14px 16px 18px;flex:1;display:flex;flex-direction:column;gap:8px}
.qcw813-card-body h3{margin:0;font-size:15px;line-height:1.5;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.qcw813-card-body p{margin:0;font-size:13px;color:var(--qcw813-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.qcw813-card-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--qcw813-muted);margin-top:auto;padding-top:6px;border-top:1px dashed var(--qcw813-glass-bd)}
.qcw813-pill{padding:3px 9px;border-radius:999px;background:color-mix(in srgb,var(--qcw813-primary) 25%,transparent);color:#fff;font-size:11px}

/* RELATED */
.qcw813-related{margin-top:36px;padding:22px;background:var(--qcw813-glass);border:1px solid var(--qcw813-glass-bd);border-radius:16px}
.qcw813-related h3{margin:0 0 12px;font-size:16px}
.qcw813-related-list{display:flex;flex-wrap:wrap;gap:10px}
.qcw813-related-list a{padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.04);font-size:13px;border:1px solid var(--qcw813-glass-bd);transition:.2s}
.qcw813-related-list a:hover{background:linear-gradient(135deg,var(--qcw813-primary),var(--qcw813-primary-2));border-color:transparent}

/* REVIEWS */
.qcw813-reviews{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin-top:18px}
.qcw813-review{display:flex;gap:12px;padding:18px;background:var(--qcw813-glass);border:1px solid var(--qcw813-glass-bd);border-radius:16px;backdrop-filter:blur(10px);transition:.25s}
.qcw813-review:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--qcw813-primary) 50%,transparent)}
.qcw813-review-avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:800;background:linear-gradient(135deg,var(--qcw813-primary),var(--qcw813-primary-2));color:#fff;flex-shrink:0}
.qcw813-review p{margin:6px 0 0;font-size:13px;color:var(--qcw813-muted);line-height:1.7}
.qcw813-review strong{font-size:14px}

/* FAQ */
.qcw813-faq-wrap{max-width:880px}
.qcw813-faq{background:var(--qcw813-glass);border:1px solid var(--qcw813-glass-bd);border-radius:14px;margin-top:12px;overflow:hidden;transition:.3s}
.qcw813-faq[open]{background:color-mix(in srgb,var(--qcw813-primary) 10%,var(--qcw813-glass));border-color:color-mix(in srgb,var(--qcw813-primary) 40%,transparent)}
.qcw813-faq summary{cursor:pointer;padding:16px 20px;font-weight:700;list-style:none;display:flex;justify-content:space-between;align-items:center}
.qcw813-faq summary::after{content:"+";font-size:22px;color:var(--qcw813-accent);transition:.3s}
.qcw813-faq[open] summary::after{transform:rotate(45deg)}
.qcw813-faq summary::-webkit-details-marker{display:none}
.qcw813-faq p{margin:0;padding:0 20px 18px;color:var(--qcw813-muted);font-size:14px;line-height:1.7;animation:qcw813slide .35s ease}
@keyframes qcw813slide{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* CONTACT */
.qcw813-contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px;margin-top:18px}
.qcw813-glass{background:var(--qcw813-glass);border:1px solid var(--qcw813-glass-bd);border-radius:18px;padding:22px;backdrop-filter:blur(12px)}
.qcw813-glass h3{margin:0 0 12px;background:linear-gradient(90deg,var(--qcw813-primary),var(--qcw813-primary-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.qcw813-glass p{margin:6px 0;font-size:13px;color:var(--qcw813-muted)}
.qcw813-glass strong{color:var(--qcw813-text)}
.qcw813-json{background:rgba(0,0,0,.35);padding:14px;border-radius:10px;font-size:12px;color:#cdd0eb;overflow-x:auto;margin:0;font-family:ui-monospace,monospace}
.qcw813-share{display:flex;gap:10px;margin-top:6px}
.qcw813-share a{width:40px;height:40px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid var(--qcw813-glass-bd);color:var(--qcw813-text);transition:.25s}
.qcw813-share a:hover{transform:translateY(-3px);background:linear-gradient(135deg,var(--qcw813-primary),var(--qcw813-primary-2));border-color:transparent;box-shadow:0 10px 24px -10px var(--qcw813-primary)}

/* FOOTER */
.qcw813-footer{margin-top:60px;background:rgba(0,0,0,.35);border-top:1px solid var(--qcw813-glass-bd);padding-top:46px}
.qcw813-foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;padding-bottom:34px}
.qcw813-foot-grid h4{margin:0 0 10px;font-size:14px;color:#fff}
.qcw813-foot-grid p{font-size:12px;color:var(--qcw813-muted);line-height:1.7;margin:0 0 8px}
.qcw813-foot-grid ul{list-style:none;padding:0;margin:8px 0 0}
.qcw813-foot-grid li{font-size:12px;color:var(--qcw813-muted);padding:3px 0}
.qcw813-foot-grid a:hover{color:var(--qcw813-accent)}
.qcw813-foot-bot{border-top:1px solid var(--qcw813-glass-bd);padding:16px 22px;text-align:center;font-size:12px;color:var(--qcw813-muted)}