:root{
    --coral:#FF6B5B;
    --coral-soft:#FFE7E3;
    --peach:#FFF3EF;
    --ink:#17181A;
    --gray:#6B6E75;
    --line:#EDEEF1;
    --bg:#FFFFFF;
    --bg-soft:#F7F7F9;
    --radius-l:28px;
    --radius-m:18px;
    --radius-s:12px;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    color:var(--ink);background:var(--bg);line-height:1.7;
    -webkit-font-smoothing:antialiased;overflow-x:hidden;
  }
  img{display:block;max-width:100%;}
  a{text-decoration:none;color:inherit;}
  .wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 20px;}
  .sec{padding:72px 0;}
  .sec-soft{background:var(--bg-soft);}
  .eyebrow{display:inline-block;font-size:13px;letter-spacing:.12em;color:var(--coral);font-weight:700;margin-bottom:12px;}
  h1,h2,h3{line-height:1.28;letter-spacing:-.01em;}
  h2{font-size:32px;font-weight:800;}
  h3{font-size:19px;font-weight:700;}
  .sec-head{max-width:680px;margin-bottom:38px;}
  .sec-head p{color:var(--gray);margin-top:12px;font-size:15.5px;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
    backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px;}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;}
  .brand img{height:34px;width:auto;border-radius:9px;}
  .nav{display:flex;gap:4px;flex-wrap:wrap;}
  .nav a{font-size:14px;color:var(--gray);padding:8px 11px;border-radius:10px;transition:.2s;}
  .nav a:hover{color:var(--coral);background:var(--coral-soft);}
  .nav-toggle{display:none;background:var(--coral-soft);border:0;color:var(--coral);font-weight:700;
    padding:8px 14px;border-radius:10px;font-size:14px;}

  /* ---------- hero ---------- */
  .hero{position:relative;overflow:hidden;background:
    radial-gradient(1000px 520px at 82% -10%, #FFD9D2 0%, rgba(255,255,255,0) 62%),
    radial-gradient(760px 460px at 4% 108%, #FFEDE8 0%, rgba(255,255,255,0) 60%),
    #fff;
    padding:64px 0 44px;
  }
  .hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;}
  .hero h1{font-size:50px;font-weight:900;letter-spacing:-.03em;}
  .hero h1 span{color:var(--coral);}
  .hero-lead{color:var(--gray);font-size:17px;margin-top:18px;max-width:520px;}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 15px;font-size:13.5px;
    color:#3A3C41;box-shadow:0 6px 18px rgba(255,107,91,.07);}
  .chip b{color:var(--coral);}

  .btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
  .btn{display:inline-flex;align-items:center;gap:9px;border-radius:14px;padding:14px 22px;font-weight:700;
    font-size:15px;transition:transform .18s ease, box-shadow .18s ease;border:1px solid transparent;}
  .btn:hover{transform:translateY(-2px);}
  .btn-primary{background:var(--coral);color:#fff;box-shadow:0 12px 26px rgba(255,107,91,.32);}
  .btn-primary:hover{box-shadow:0 16px 32px rgba(255,107,91,.4);}
  .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:0 6px 18px rgba(0,0,0,.04);}
  .btn-ghost:hover{border-color:#FFC9C1;}
  .btn small{display:block;font-weight:500;font-size:11.5px;opacity:.85;}
  .hero-note{font-size:12.5px;color:#9A9DA4;margin-top:16px;}

  /* hero collage */
  .collage{position:relative;min-height:430px;}
  .poster{position:absolute;border-radius:20px;overflow:hidden;box-shadow:0 24px 48px rgba(23,24,26,.18);
    animation:float 7s ease-in-out infinite;}
  .poster img{width:100%;height:100%;object-fit:cover;}
  .p1{width:44%;height:78%;left:6%;top:4%;z-index:3;animation-delay:0s;}
  .p2{width:36%;height:62%;right:2%;top:0;z-index:2;animation-delay:1.1s;}
  .p3{width:34%;height:52%;right:16%;bottom:0;z-index:4;animation-delay:.6s;}
  .p4{width:26%;height:38%;left:0;bottom:6%;z-index:1;animation-delay:1.6s;}
  @keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
  .collage-badge{position:absolute;right:4%;bottom:38%;z-index:5;background:#fff;border-radius:16px;
    padding:12px 16px;box-shadow:0 16px 36px rgba(255,107,91,.22);border:1px solid var(--coral-soft);}
  .collage-badge strong{display:block;color:var(--coral);font-size:15px;}
  .collage-badge span{font-size:12px;color:var(--gray);}

  /* ---------- glow gallery ---------- */
  .glow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
  .glow-card{background:#fff;border-radius:var(--radius-m);padding:14px;border:1px solid var(--line);
    box-shadow:0 14px 34px rgba(23,24,26,.06);transition:transform .35s ease, box-shadow .35s ease, border-color .35s;}
  .glow-card:nth-child(even){transform:translateY(14px);}
  .glow-card:hover{transform:translateY(-8px) rotate(-1.2deg);box-shadow:0 24px 52px rgba(255,107,91,.2);border-color:#FFD3CC;}
  .glow-card img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:14px;}
  .glow-card h3{margin-top:13px;font-size:16px;}
  .glow-card p{font-size:13px;color:var(--gray);margin-top:6px;}
  .tagline{display:inline-block;margin-top:10px;font-size:11.5px;color:var(--coral);background:var(--coral-soft);
    padding:3px 10px;border-radius:999px;font-weight:600;}

  /* ---------- film strip ---------- */
  .film{display:flex;flex-direction:column;gap:34px;position:relative;}
  .film::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--line);transform:translateX(-50%);}
  .film-row{display:grid;grid-template-columns:.86fr 1.14fr;gap:38px;align-items:center;position:relative;}
  .film-row.rev{grid-template-columns:1.14fr .86fr;}
  .film-row.rev .film-poster{order:2;}
  .film-poster{border-radius:var(--radius-m);overflow:hidden;box-shadow:0 22px 44px rgba(23,24,26,.14);}
  .film-poster img{width:100%;aspect-ratio:3/4;object-fit:cover;}
  .film-body{background:#fff;border-radius:var(--radius-l);padding:28px;border:1px solid var(--line);}
  .film-body .time{font-size:12.5px;color:var(--coral);font-weight:700;letter-spacing:.06em;}
  .film-body h3{font-size:22px;margin:8px 0 10px;}
  .film-body p{color:var(--gray);font-size:14.5px;}
  .film-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
  .film-tags span{font-size:12px;background:var(--peach);color:#C4493B;padding:4px 11px;border-radius:8px;}

  /* ---------- playback track ---------- */
  .track{position:relative;margin-top:20px;padding:18px 0;}
  .track-line{position:absolute;left:0;right:0;top:52px;height:3px;border-radius:3px;
    background:linear-gradient(90deg,#FFD9D2,#FF6B5B,#FFD9D2);}
  .track-nodes{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;position:relative;}
  .node{text-align:center;}
  .node .dot{width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--coral);
    margin:0 auto 40px;box-shadow:0 0 0 6px rgba(255,107,91,.14);position:relative;z-index:2;}
  .node strong{display:block;font-size:15px;color:var(--coral);}
  .node span{font-size:12.5px;color:var(--gray);}
  .track-side{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:34px;}
  .track-side div{background:#fff;border-radius:var(--radius-m);padding:22px;border:1px solid var(--line);}
  .track-side h3{font-size:16px;margin-bottom:8px;}
  .track-side p{font-size:14px;color:var(--gray);}

  /* ---------- hover pods ---------- */
  .pod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .pod{background:#fff;border-radius:var(--radius-m);overflow:hidden;border:1px solid var(--line);
    transition:transform .3s,box-shadow .3s;box-shadow:0 10px 26px rgba(23,24,26,.05);}
  .pod:hover{transform:translateY(-8px);box-shadow:0 24px 44px rgba(23,24,26,.13);}
  .pod img{width:100%;aspect-ratio:3/4;object-fit:cover;}
  .pod-body{padding:14px;display:flex;align-items:center;gap:10px;}
  .rank{width:30px;height:30px;flex:0 0 30px;border-radius:9px;display:grid;place-items:center;
    font-weight:800;font-size:14px;background:var(--bg-soft);color:var(--gray);}
  .pod.top .rank{background:var(--coral);color:#fff;}
  .pod.top{box-shadow:0 18px 40px rgba(255,107,91,.28);border-color:#FFD3CC;}
  .pod-body h3{font-size:14.5px;}
  .pod-body small{color:var(--gray);font-size:12px;}
  .pod-note{margin-top:26px;font-size:14px;color:var(--gray);}

  /* ---------- danmaku ---------- */
  .dm-board{position:relative;background:#fff;border-radius:var(--radius-l);padding:34px 28px;
    border:1px solid var(--line);overflow:hidden;}
  .dm-board::before{content:"";position:absolute;inset:0;background:
    repeating-linear-gradient(0deg,transparent 0 46px,rgba(255,107,91,.05) 46px 47px);pointer-events:none;}
  .dm{display:grid;grid-template-columns:1fr 1fr;gap:16px;position:relative;z-index:2;}
  .dm-item{display:flex;gap:12px;background:var(--bg-soft);border-radius:14px;padding:14px 16px;
    border:1px solid var(--line);}
  .dm-item:nth-child(3n){margin-left:26px;}
  .dm-item:nth-child(4n){margin-right:18px;}
  .dm-item img{width:36px;height:36px;border-radius:50%;object-fit:cover;flex:0 0 36px;}
  .dm-item p{font-size:13.5px;color:#3A3C41;}
  .dm-item span{display:block;font-size:11.5px;color:#9A9DA4;margin-top:4px;}

  /* ---------- faq ---------- */
  .faq{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);padding:6px 20px;}
  .faq-item summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;font-size:15.5px;
    display:flex;justify-content:space-between;align-items:center;gap:12px;}
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{content:"+";color:var(--coral);font-size:20px;font-weight:700;line-height:1;}
  .faq-item[open] summary::after{content:"−";}
  .faq-item p{color:var(--gray);font-size:14px;padding:0 0 18px;}

  /* ---------- steps + download ---------- */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px;}
  .step{background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);padding:24px;}
  .step b{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--coral-soft);
    color:var(--coral);font-size:15px;margin-bottom:14px;}
  .step h3{font-size:16px;margin-bottom:6px;}
  .step p{font-size:13.5px;color:var(--gray);}
  .dl-box{background:linear-gradient(135deg,#FFF6F4,#FFEDE9);border-radius:var(--radius-l);padding:44px 34px;
    text-align:center;border:1px solid var(--coral-soft);}
  .dl-box h2{font-size:28px;}
  .dl-box > p{color:var(--gray);margin-top:12px;font-size:15px;max-width:560px;margin-left:auto;margin-right:auto;}
  .dl-btns{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}
  .dl-btns .btn{min-width:190px;justify-content:center;}
  .dl-url{margin-top:22px;font-size:12.5px;color:#9A9DA4;word-break:break-all;}

  /* ---------- footer ---------- */
  .site-footer{background:#17181A;color:#C9CBD1;padding:52px 0 30px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .site-footer .brand{color:#fff;margin-bottom:14px;}
  .site-footer p{font-size:13.5px;color:#9A9DA4;}
  .site-footer h3{color:#fff;font-size:15px;margin-bottom:12px;}
  .site-footer ul{list-style:none;display:flex;flex-direction:column;gap:8px;}
  .site-footer ul a{font-size:13.5px;color:#9A9DA4;transition:.2s;}
  .site-footer ul a:hover{color:var(--coral);}
  .footer-bottom{border-top:1px solid #2A2C31;margin-top:34px;padding-top:20px;
    display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:12.5px;color:#7C7F87;}

  /* ---------- modal ---------- */
  .modal{position:fixed;inset:0;background:rgba(23,24,26,.5);display:none;align-items:center;
    justify-content:center;padding:20px;z-index:200;}
  .modal.on{display:flex;}
  .modal-card{background:#fff;border-radius:22px;padding:28px 24px;max-width:420px;width:100%;text-align:center;}
  .modal-card h3{font-size:17px;line-height:1.5;}
  .modal-card .url{margin:16px 0;background:var(--bg-soft);border-radius:12px;padding:12px;
    font-size:13px;color:#3A3C41;word-break:break-all;border:1px dashed #E3E4E8;}
  .modal-card .modal-actions{display:flex;gap:10px;}
  .modal-card .btn{flex:1;justify-content:center;padding:12px 16px;}

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .hero-grid{grid-template-columns:1fr;gap:38px;}
    .hero h1{font-size:40px;}
    .collage{min-height:380px;max-width:520px;margin:0 auto;width:100%;}
    .glow-grid{grid-template-columns:repeat(3,1fr);}
    .pod-grid{grid-template-columns:repeat(3,1fr);}
    .film-row,.film-row.rev{grid-template-columns:1fr;gap:20px;}
    .film-row.rev .film-poster{order:0;}
    .film::before{display:none;}
    .track-nodes{grid-template-columns:repeat(3,1fr);row-gap:26px;}
    .track-line{display:none;}
    .node .dot{margin-bottom:16px;}
    .faq{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:768px){
    .sec{padding:52px 0;}
    h2{font-size:25px;}
    .header-inner{height:60px;}
    .nav-toggle{display:inline-block;}
    .nav{display:none;position:absolute;left:0;right:0;top:60px;background:#fff;flex-direction:column;
      padding:12px 20px 20px;border-bottom:1px solid var(--line);gap:2px;}
    .nav.open{display:flex;}
    .nav a{padding:11px 12px;}
    .hero{padding:40px 0 32px;}
    .hero h1{font-size:31px;}
    .hero-lead{font-size:15.5px;}
    .btn{padding:13px 18px;font-size:14px;flex:1 1 auto;justify-content:center;}
    .collage{min-height:330px;}
    .glow-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
    .glow-card:nth-child(even){transform:none;}
    .pod-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
    .track-nodes{grid-template-columns:repeat(2,1fr);}
    .track-side{grid-template-columns:1fr;}
    .dm{grid-template-columns:1fr;}
    .dm-item:nth-child(3n),.dm-item:nth-child(4n){margin-left:0;margin-right:0;}
    .dm-board{padding:24px 16px;}
    .dl-box{padding:32px 20px;}
    .dl-btns .btn{min-width:0;width:100%;}
    .footer-grid{grid-template-columns:1fr;}
    .film-body{padding:22px;}
    .film-body h3{font-size:19px;}
  }
  @media (max-width:420px){
    .glow-grid,.pod-grid{grid-template-columns:1fr;}
  }