:root{
  --cream:#fdf6ef;
  --cream-2:#f8ece0;
  --peach:#f6d8c8;
  --peach-deep:#e9b79c;
  --rose:#c97b6b;
  --rose-deep:#a85c4d;
  --ink:#43322c;
  --ink-soft:#7b665c;
  --line:#efdccf;
  --card:#fffdfa;
  --shadow:0 14px 34px rgba(168,92,77,.10);
}
*{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;
  background:var(--cream);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(253,246,239,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:1180px;margin:0 auto;padding:12px 20px;
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;}
.brand img{height:34px;width:34px;object-fit:cover;border-radius:10px;box-shadow:0 4px 12px rgba(201,123,107,.28);}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.5px;}
.nav-toggle{
  display:none;background:none;border:1px solid var(--line);border-radius:10px;
  padding:6px 12px;color:var(--ink-soft);font-size:14px;cursor:pointer;
}
.site-nav ul{display:flex;gap:4px;flex-wrap:wrap;}
.site-nav a{
  display:block;padding:7px 12px;font-size:14px;color:var(--ink-soft);
  border-radius:20px;transition:color .25s,background .25s;
}
.site-nav a:hover{color:var(--rose-deep);background:var(--cream-2);}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;padding:12px 26px;border-radius:30px;
  font-size:15px;font-weight:600;transition:transform .25s,box-shadow .25s,background .25s;
}
.btn-primary{
  background:linear-gradient(120deg,#e8a48c,#c97b6b);
  color:#fff;box-shadow:0 10px 24px rgba(201,123,107,.34);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 30px rgba(201,123,107,.42);}
.btn-ghost{
  border:1px solid var(--peach-deep);color:var(--rose-deep);background:#fff;
}
.btn-ghost:hover{background:var(--cream-2);transform:translateY(-3px);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 12% 18%,rgba(246,216,200,.85),transparent 52%),
    radial-gradient(circle at 88% 8%,rgba(255,238,224,.9),transparent 50%),
    var(--cream);
  padding:56px 20px 70px;
}
.hero::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(233,183,156,.4),transparent 68%);
}
.hero-inner{
  position:relative;z-index:2;max-width:1180px;margin:0 auto;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.hero-tag{
  display:inline-block;font-size:13px;letter-spacing:1px;color:var(--rose-deep);
  background:#fff;border:1px solid var(--line);padding:5px 14px;border-radius:20px;margin-bottom:18px;
}
.hero h1{
  font-size:clamp(25px,3.3vw,40px);line-height:1.4;font-weight:800;
  letter-spacing:.5px;margin-bottom:16px;
}
.hero h1 em{font-style:normal;color:var(--rose-deep);}
.hero-desc{font-size:16px;color:var(--ink-soft);max-width:480px;margin-bottom:26px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px;}
.hero-meta{display:flex;gap:26px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-soft);}
.hero-meta span{position:relative;padding-left:14px;}
.hero-meta span::before{
  content:"";position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:50%;
  background:var(--peach-deep);
}
.hero-art{position:relative;display:flex;justify-content:center;align-items:center;gap:14px;}
.hero-card{
  border-radius:20px;overflow:hidden;box-shadow:var(--shadow);
  border:5px solid #fff;background:#fff;transition:transform .5s ease;
}
.hero-card img{width:100%;height:100%;object-fit:cover;}
.hero-card.tall{width:52%;aspect-ratio:3/4.2;transform:rotate(-3deg);}
.hero-card.small{width:38%;aspect-ratio:3/4;transform:translateY(30px) rotate(4deg);}
.hero-card:hover{transform:translateY(-6px) rotate(0deg) scale(1.02);}
.hero-glow{
  position:absolute;inset:-20px;border-radius:32px;z-index:-1;
  background:linear-gradient(140deg,rgba(246,216,200,.9),rgba(255,255,255,0));
  filter:blur(18px);
}

/* ---------- shared section ---------- */
.section{max-width:1180px;margin:0 auto;padding:70px 20px;}
.section-head{margin-bottom:34px;max-width:640px;}
.section-kicker{
  font-size:13px;letter-spacing:2px;color:var(--rose);font-weight:600;margin-bottom:8px;
}
.section-head h2{font-size:clamp(21px,2.4vw,28px);font-weight:800;line-height:1.45;}
.section-head p{margin-top:10px;color:var(--ink-soft);font-size:15px;}
.divider{height:1px;background:var(--line);max-width:1180px;margin:0 auto;}

/* ---------- highlights ---------- */
.highlight-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.highlight-card{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  padding:24px 20px;box-shadow:var(--shadow);transition:transform .3s,border-color .3s;
}
.highlight-card:hover{transform:translateY(-6px);border-color:var(--peach-deep);}
.highlight-num{
  font-size:13px;font-weight:700;color:var(--rose-deep);letter-spacing:1px;margin-bottom:12px;
}
.highlight-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.highlight-card p{font-size:14px;color:var(--ink-soft);line-height:1.7;}

/* ---------- player ---------- */
.player-wrap{
  display:grid;grid-template-columns:260px 1fr;gap:28px;align-items:start;
}
.player-side{display:flex;flex-direction:column;gap:14px;}
.player-side .side-thumb{
  border-radius:16px;overflow:hidden;border:4px solid #fff;box-shadow:var(--shadow);
}
.player-side .side-thumb img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .6s;}
.player-side .side-thumb:hover img{transform:scale(1.05);}
.player-main{
  position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(160deg,#fff7f0,#f3e2d6);box-shadow:var(--shadow);
  padding:26px;display:grid;grid-template-columns:1fr 250px;gap:24px;align-items:center;
}
.player-copy h3{font-size:20px;font-weight:800;margin-bottom:10px;}
.player-copy p{font-size:14.5px;color:var(--ink-soft);margin-bottom:18px;}
.player-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.player-tags span{
  font-size:12.5px;color:var(--rose-deep);background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:3px 12px;
}
.player-poster{border-radius:16px;overflow:hidden;border:4px solid #fff;box-shadow:0 12px 26px rgba(168,92,77,.18);}
.player-poster img{width:100%;aspect-ratio:3/4;object-fit:cover;}
.play-btn{
  position:absolute;right:calc(250px + 26px + 6px);bottom:26px;
  width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(140deg,#e8a48c,#c97b6b);color:#fff;font-size:18px;
  box-shadow:0 10px 22px rgba(201,123,107,.4);transition:transform .3s;
}
.play-btn:hover{transform:scale(1.08);}
.player-bar{
  margin-top:14px;height:6px;border-radius:6px;background:#f2ddd1;overflow:hidden;
}
.player-bar i{display:block;height:100%;width:38%;border-radius:6px;background:linear-gradient(90deg,#f0bda6,#c97b6b);}

/* ---------- gallery ---------- */
.gallery-row{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.gallery-item{
  border-radius:16px;overflow:hidden;background:#fff;border:4px solid #fff;
  box-shadow:var(--shadow);position:relative;transition:transform .4s,box-shadow .4s;
}
.gallery-item img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .6s ease;}
.gallery-item:nth-child(odd){margin-top:22px;}
.gallery-item:hover{transform:translateY(-8px);box-shadow:0 22px 40px rgba(168,92,77,.22);}
.gallery-item:hover img{transform:scale(1.07);}
.gallery-caption{
  font-size:12.5px;color:var(--ink-soft);text-align:center;margin-top:10px;line-height:1.5;
}

/* ---------- feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.split-art{position:relative;}
.split-art .main-img{
  border-radius:22px;overflow:hidden;border:6px solid #fff;box-shadow:var(--shadow);
}
.split-art .main-img img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split-art .float-img{
  position:absolute;right:-14px;bottom:-30px;width:38%;border-radius:16px;overflow:hidden;
  border:5px solid #fff;box-shadow:0 16px 32px rgba(168,92,77,.22);
}
.split-art .float-img img{width:100%;aspect-ratio:3/4;object-fit:cover;}
.split-list{display:flex;flex-direction:column;gap:20px;margin-top:22px;}
.split-list li{
  display:flex;gap:14px;align-items:flex-start;
}
.split-list .dot{
  flex:0 0 30px;height:30px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--cream-2);color:var(--rose-deep);font-size:13px;font-weight:700;
}
.split-list h3{font-size:16px;font-weight:700;margin-bottom:4px;}
.split-list p{font-size:14px;color:var(--ink-soft);}

/* ---------- notes / interactive ---------- */
.tools-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.tool-card{
  background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px;
  box-shadow:var(--shadow);display:flex;gap:20px;align-items:flex-start;
}
.tool-card img{
  width:86px;height:112px;object-fit:cover;border-radius:12px;flex:0 0 auto;
}
.tool-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.tool-card p{font-size:14px;color:var(--ink-soft);}
.note-box{
  margin-top:22px;background:linear-gradient(140deg,#fff6ef,#fbeade);
  border:1px dashed var(--peach-deep);border-radius:18px;padding:22px;
}
.note-box h3{font-size:16px;margin-bottom:8px;color:var(--rose-deep);}
.note-box p{font-size:14px;color:var(--ink-soft);margin-bottom:14px;}
.note-input{
  width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 14px;
  font-size:14px;color:var(--ink);background:#fff;font-family:inherit;resize:vertical;
  min-height:78px;outline:none;transition:border-color .25s;
}
.note-input:focus{border-color:var(--peach-deep);}
.note-actions{display:flex;align-items:center;gap:14px;margin-top:12px;flex-wrap:wrap;}
.note-actions button{
  border:none;cursor:pointer;padding:9px 20px;border-radius:22px;font-size:14px;
  background:linear-gradient(120deg,#e8a48c,#c97b6b);color:#fff;
  box-shadow:0 8px 18px rgba(201,123,107,.3);transition:transform .25s;
}
.note-actions button:hover{transform:translateY(-2px);}
.note-tip{font-size:12.5px;color:var(--ink-soft);}
.saved-list{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.saved-list li{
  font-size:13.5px;color:var(--ink);background:#fff;border:1px solid var(--line);
  border-radius:10px;padding:9px 14px;
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .3s,box-shadow .3s;
}
.faq-item[open]{border-color:var(--peach-deep);box-shadow:var(--shadow);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:15.5px;font-weight:600;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";color:var(--rose-deep);font-size:20px;font-weight:400;line-height:1;
  transition:transform .3s;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 22px 20px;font-size:14px;color:var(--ink-soft);}

/* ---------- download ---------- */
.download{
  max-width:1180px;margin:20px auto 70px;padding:0 20px;
}
.download-inner{
  border-radius:26px;padding:52px 40px;text-align:center;position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 20% 20%,rgba(255,255,255,.7),transparent 55%),
    linear-gradient(135deg,#fbe9dc,#f4cdb9);
  border:1px solid var(--peach-deep);
}
.download-inner h2{font-size:clamp(21px,2.5vw,29px);font-weight:800;margin-bottom:12px;}
.download-inner p{color:var(--ink-soft);font-size:15px;max-width:520px;margin:0 auto 26px;}
.download-note{margin-top:18px;font-size:13px;color:var(--ink-soft);}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);background:var(--cream-2);
  padding:30px 20px 36px;
}
.footer-inner{max-width:1180px;margin:0 auto;text-align:center;font-size:12.5px;color:var(--ink-soft);line-height:1.9;}
.footer-inner a{color:var(--ink-soft);border-bottom:1px solid transparent;transition:color .25s,border-color .25s;}
.footer-inner a:hover{color:var(--rose-deep);border-color:var(--rose-deep);}
.footer-inner time{color:var(--ink-soft);}

/* ---------- reveal animation (初始可见) ---------- */
.reveal{transition:transform .7s ease,opacity .7s ease;}
.reveal.is-in{transform:translateY(0);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-desc{max-width:none;}
  .highlight-grid{grid-template-columns:repeat(2,1fr);}
  .gallery-row{grid-template-columns:repeat(3,1fr);}
  .player-wrap{grid-template-columns:1fr;}
  .player-side{flex-direction:row;}
  .player-side .side-thumb{flex:1;}
  .player-main{grid-template-columns:1fr 200px;}
  .play-btn{right:calc(200px + 26px + 6px);}
  .split{grid-template-columns:1fr;gap:56px;}
  .tools-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .header-inner{padding:10px 16px;gap:10px;}
  .nav-toggle{display:block;}
  .site-nav{width:100%;display:none;}
  .site-nav.open{display:block;}
  .site-nav ul{gap:2px;}
  .site-nav a{padding:8px 10px;font-size:13.5px;}
  .section{padding:50px 16px;}
  .hero{padding:38px 16px 56px;}
  .hero-card.tall{width:56%;}
  .hero-card.small{display:none;}
  .hero-art{justify-content:flex-start;}
  .highlight-grid{grid-template-columns:1fr;}
  .gallery-row{grid-template-columns:repeat(2,1fr);gap:12px;}
  .gallery-item:nth-child(odd){margin-top:0;}
  .player-side{display:none;}
  .player-main{grid-template-columns:1fr;padding:20px;}
  .player-poster{max-width:200px;}
  .play-btn{right:20px;bottom:20px;width:46px;height:46px;}
  .split-art .float-img{width:42%;right:-6px;bottom:-22px;}
  .download-inner{padding:38px 22px;}
  .tool-card{flex-direction:column;gap:14px;}
  .tool-card img{width:100%;height:170px;}
}
@media (max-width:420px){
  .hero-card.tall{width:64%;}
}