:root{
    --bg:#0d0d12;
    --bg-soft:#15151d;
    --bg-card:#1b1b25;
    --line:rgba(255,255,255,.09);
    --text:#f2f2f5;
    --text-sub:#a7a7b4;
    --accent:#ffc93c;
    --accent-2:#ff7a9c;
    --radius:14px;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--bg);
    color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    line-height:1.65;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  ul{list-style:none;}
  .wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(13,13,18,.86);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    height:66px;
  }
  .brand{display:flex;align-items:center;gap:10px;}
  .brand img{height:34px;width:auto;}
  .brand-name{font-size:17px;font-weight:700;letter-spacing:.5px;}
  .nav{display:flex;align-items:center;gap:26px;}
  .nav a{font-size:14px;color:var(--text-sub);transition:color .2s;}
  .nav a:hover{color:var(--accent);}
  .nav-cta{
    padding:8px 18px;border-radius:999px;
    background:linear-gradient(120deg,var(--accent),#ffb03c);
    color:#1a1207 !important;font-weight:700;font-size:14px;
  }
  .menu-toggle{
    display:none;background:none;border:0;color:var(--text);
    font-size:22px;line-height:1;cursor:pointer;padding:6px;
  }

  /* ---------- hero ---------- */
  .hero{
    position:relative;
    padding:64px 0 70px;
    background:
      radial-gradient(900px 420px at 78% 8%,rgba(255,122,156,.16),transparent 65%),
      radial-gradient(760px 420px at 10% 92%,rgba(255,201,60,.12),transparent 62%);
    overflow:hidden;
  }
  .hero-grid{
    display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  }
  .hero-tag{
    display:inline-block;font-size:13px;letter-spacing:.08em;
    color:var(--accent);border:1px solid rgba(255,201,60,.35);
    border-radius:999px;padding:5px 14px;margin-bottom:20px;
  }
  .hero h1{
    font-size:44px;line-height:1.25;font-weight:800;letter-spacing:.5px;
    margin-bottom:18px;
  }
  .hero h1 em{
    font-style:normal;
    background:linear-gradient(100deg,var(--accent),var(--accent-2));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{font-size:16px;color:var(--text-sub);max-width:520px;margin-bottom:30px;}
  .btn-row{display:flex;flex-wrap:wrap;gap:14px;}
  .btn{
    display:inline-block;padding:13px 30px;border-radius:999px;
    font-size:15px;font-weight:700;transition:transform .2s,box-shadow .2s;
  }
  .btn:hover{transform:translateY(-2px);}
  .btn-primary{
    background:linear-gradient(120deg,var(--accent),#ffab2e);
    color:#1a1207;box-shadow:0 10px 26px rgba(255,170,46,.28);
  }
  .btn-ghost{
    border:1px solid rgba(255,255,255,.22);color:var(--text);
  }
  .hero-stats{
    display:flex;gap:36px;margin-top:38px;flex-wrap:wrap;
  }
  .hero-stats div span{
    display:block;font-size:13px;color:var(--text-sub);
  }
  .hero-stats div strong{font-size:19px;font-weight:700;}

  .hero-stage{
    position:relative;display:grid;
    grid-template-columns:1fr 1fr 1fr;gap:14px;
    perspective:1200px;
  }
  .hero-stage img{
    border-radius:var(--radius);
    object-fit:cover;width:100%;height:100%;
    border:1px solid var(--line);
    box-shadow:0 18px 40px rgba(0,0,0,.5);
  }
  .hero-stage .tall{aspect-ratio:3/4;}
  .hero-stage .col-mid{display:flex;flex-direction:column;gap:14px;}
  .hero-stage .col-mid img{flex:1;aspect-ratio:4/5;}
  .hero-stage .col-off{margin-top:34px;}

  /* ---------- section title ---------- */
  .sec{padding:72px 0;}
  .sec-head{margin-bottom:38px;max-width:680px;}
  .sec-head h2{
    font-size:30px;font-weight:800;letter-spacing:.4px;margin-bottom:12px;
  }
  .sec-head p{color:var(--text-sub);font-size:15px;}
  .sec-head .kicker{
    display:inline-block;font-size:12px;letter-spacing:.18em;
    color:var(--accent);margin-bottom:10px;
  }

  /* ---------- genres ---------- */
  .genre-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  }
  .genre-card{
    background:var(--bg-card);border:1px solid var(--line);
    border-radius:var(--radius);padding:24px 20px;
    transition:border-color .2s,transform .2s;
  }
  .genre-card:hover{border-color:rgba(255,201,60,.45);transform:translateY(-3px);}
  .genre-card .num{
    font-size:12px;color:var(--accent);letter-spacing:.14em;margin-bottom:10px;
  }
  .genre-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
  .genre-card p{font-size:13.5px;color:var(--text-sub);}

  /* ---------- picks ---------- */
  .picks{background:var(--bg-soft);}
  .poster-grid{
    display:grid;grid-template-columns:repeat(5,1fr);gap:18px;
  }
  .poster{
    position:relative;border-radius:12px;overflow:hidden;
    border:1px solid var(--line);background:#111;
  }
  .poster img{
    width:100%;aspect-ratio:3/4;object-fit:cover;
    transition:transform .4s;
  }
  .poster:hover img{transform:scale(1.05);}
  .poster-cap{
    position:absolute;left:0;right:0;bottom:0;
    padding:26px 12px 10px;
    background:linear-gradient(to top,rgba(0,0,0,.88),transparent);
    font-size:13px;font-weight:600;line-height:1.4;
  }
  .poster-cap small{
    display:block;font-weight:400;font-size:11.5px;color:rgba(255,255,255,.62);
    margin-top:2px;
  }

  /* ---------- ai block ---------- */
  .ai-grid{
    display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  }
  .ai-collage{
    display:grid;grid-template-columns:1fr 1fr;gap:14px;
  }
  .ai-collage img{
    width:100%;aspect-ratio:3/4;object-fit:cover;
    border-radius:12px;border:1px solid var(--line);
  }
  .ai-collage img:nth-child(2){margin-top:26px;}
  .ai-collage img:nth-child(3){margin-top:-26px;}
  .ai-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
  .ai-list li{
    display:flex;gap:12px;font-size:14.5px;color:var(--text-sub);
  }
  .ai-list li b{color:var(--text);font-weight:700;display:block;font-size:15px;margin-bottom:2px;}
  .dot{
    flex:0 0 8px;width:8px;height:8px;border-radius:50%;
    background:var(--accent);margin-top:9px;
  }

  /* ---------- strip / marquee ---------- */
  .strip{
    padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    background:var(--bg-soft);overflow:hidden;
  }
  .strip-track{
    display:flex;gap:14px;width:max-content;
    animation:slide 46s linear infinite;
  }
  .strip:hover .strip-track{animation-play-state:paused;}
  .strip-track img{
    width:130px;aspect-ratio:3/4;object-fit:cover;border-radius:10px;
    border:1px solid var(--line);
  }
  @keyframes slide{
    from{transform:translateX(0);}
    to{transform:translateX(-50%);}
  }

  /* ---------- steps ---------- */
  .steps{
    display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  }
  .step{
    background:var(--bg-card);border:1px solid var(--line);
    border-radius:var(--radius);padding:28px 24px;position:relative;
  }
  .step .idx{
    font-size:34px;font-weight:800;line-height:1;
    color:transparent;-webkit-text-stroke:1px rgba(255,201,60,.6);
    margin-bottom:14px;
  }
  .step h3{font-size:17px;margin-bottom:8px;font-weight:700;}
  .step p{font-size:14px;color:var(--text-sub);}

  /* ---------- feature split ---------- */
  .split{
    display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  }
  .split-media{
    display:grid;grid-template-columns:1.1fr .9fr;gap:14px;
  }
  .split-media img{
    width:100%;object-fit:cover;border-radius:12px;border:1px solid var(--line);
  }
  .split-media img:first-child{aspect-ratio:3/4;}
  .split-media img:last-child{aspect-ratio:3/4;margin-top:30px;}
  .split-text h2{font-size:28px;font-weight:800;margin-bottom:14px;}
  .split-text p{color:var(--text-sub);font-size:15px;margin-bottom:12px;}
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
  .tag{
    font-size:13px;padding:6px 14px;border-radius:999px;
    border:1px solid var(--line);color:var(--text-sub);
  }

  /* ---------- faq ---------- */
  .faq{background:var(--bg-soft);}
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:820px;}
  .faq-item{
    border:1px solid var(--line);border-radius:12px;background:var(--bg-card);
    overflow:hidden;
  }
  .faq-item summary{
    cursor:pointer;padding:16px 20px;font-size:15px;font-weight:600;
    list-style:none;display:flex;justify-content:space-between;gap:16px;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{content:"+";color:var(--accent);font-size:18px;line-height:1;}
  .faq-item[open] summary::after{content:"−";}
  .faq-item p{padding:0 20px 18px;font-size:14px;color:var(--text-sub);}

  /* ---------- cta ---------- */
  .cta-band{
    padding:64px 0;
    background:
      radial-gradient(700px 320px at 50% 0%,rgba(255,201,60,.16),transparent 68%),
      var(--bg);
    text-align:center;
  }
  .cta-band h2{font-size:30px;font-weight:800;margin-bottom:14px;}
  .cta-band p{color:var(--text-sub);font-size:15px;margin-bottom:28px;}

  /* ---------- footer ---------- */
  .site-footer{
    border-top:1px solid var(--line);
    padding:36px 0 40px;
    font-size:12.5px;color:#6f6f7d;
  }
  .footer-inner{
    display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:flex-start;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
  .footer-brand img{height:26px;width:auto;opacity:.85;}
  .footer-brand span{font-size:14px;font-weight:700;color:#9a9aa8;}
  .site-footer a{color:#8b8b9a;border-bottom:1px dotted rgba(255,255,255,.2);}
  .site-footer a:hover{color:var(--accent);}
  .footer-time{margin-top:8px;}
  .footer-meta{text-align:right;line-height:1.9;}

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .hero h1{font-size:36px;}
    .genre-grid{grid-template-columns:repeat(2,1fr);}
    .poster-grid{grid-template-columns:repeat(4,1fr);}
    .hero-grid,.ai-grid,.split{gap:34px;}
  }
  @media (max-width:768px){
    .nav{
      position:absolute;top:66px;left:0;right:0;
      flex-direction:column;align-items:stretch;gap:0;
      background:rgba(13,13,18,.98);
      border-bottom:1px solid var(--line);
      display:none;padding:10px 20px 18px;
    }
    .nav.open{display:flex;}
    .nav a{padding:11px 0;border-bottom:1px solid rgba(255,255,255,.05);}
    .nav-cta{text-align:center;margin-top:12px;border-bottom:0;}
    .menu-toggle{display:block;}

    .hero{padding:42px 0 52px;}
    .hero-grid{grid-template-columns:1fr;gap:34px;}
    .hero h1{font-size:29px;}
    .hero-sub{font-size:15px;}
    .hero-stage{grid-template-columns:1fr 1fr;max-width:420px;}
    .hero-stage .col-off{display:none;}

    .sec{padding:48px 0;}
    .sec-head h2{font-size:23px;}
    .genre-grid{grid-template-columns:1fr 1fr;gap:12px;}
    .poster-grid{grid-template-columns:repeat(3,1fr);gap:12px;}
    .ai-grid,.split{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .split-media img:last-child{margin-top:0;}
    .cta-band h2{font-size:23px;}
    .footer-inner{flex-direction:column;}
    .footer-meta{text-align:left;}
    .strip-track img{width:104px;}
  }
  @media (max-width:420px){
    .poster-grid{grid-template-columns:repeat(2,1fr);}
  }