:root{
  --bg:#FBF8F3;
  --bg-alt:#F2ECE1;
  --surface:#FFFFFF;
  --ink:#1F1B16;
  --ink-2:#6B6459;
  --ink-3:#A39A8C;
  --brand:#C2452D;
  --brand-soft:#F8E7E1;
  --line:#E6DED1;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit;}

/* age bar */
.agebar{
  background:var(--ink);
  color:rgba(255,255,255,.84);
  font-size:12.5px;
  text-align:center;
  padding:9px 16px;
  line-height:1.4;
}
.agebar .badge{
  display:inline-block;
  font-size:11px;
  line-height:1;
  padding:3px 6px;
  border:1px solid rgba(255,255,255,.5);
  border-radius:4px;
  margin-right:8px;
  vertical-align:1px;
}

/* nav */
.topnav{
  border-bottom:1px solid var(--line);
  background:var(--bg);
}
.topnav .inner{
  max-width:1120px;margin:0 auto;
  padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brandline{display:flex;align-items:center;gap:10px;}
.brandline img{height:32px;width:auto;}
.brandline span{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.navlinks{display:flex;gap:22px;font-size:13px;color:var(--ink-2);}
.navlinks a:hover{color:var(--brand);}

main{max-width:1120px;margin:0 auto;padding:0 24px;}
section{margin-top:96px;}
section:first-of-type{margin-top:0;}

/* section head */
.eyebrow{
  font-size:11px;text-transform:uppercase;letter-spacing:.22em;color:var(--ink-3);
  display:flex;align-items:center;gap:8px;font-weight:700;
}
.eyebrow::before{content:"";display:block;width:18px;height:1px;background:var(--ink-3);}
.sh{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.sh h2{
  font-size:clamp(26px,4vw,36px);font-weight:800;line-height:1.25;
  letter-spacing:-.02em;
}
.sh h2 em{font-style:normal;color:var(--brand);}
.sh p{color:var(--ink-2);max-width:620px;font-size:14.5px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.content{margin-top:32px;}

/* 01 hero */
.hero{
  position:relative;
  padding-top:56px;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;top:-260px;right:-180px;
  width:640px;height:640px;
  background:radial-gradient(circle,rgba(194,69,45,.13),rgba(194,69,45,0) 68%);
  pointer-events:none;
}
.hero .eyebrow{position:relative;z-index:1;}
.hero h1{
  position:relative;z-index:1;
  font-size:clamp(38px,6.4vw,66px);
  font-weight:800;
  letter-spacing:-.035em;
  line-height:1.12;
  margin:16px 0 0;
}
.hero h1 .hl{color:var(--brand);display:block;}
.hero .sub{
  position:relative;z-index:1;
  font-size:15.5px;line-height:1.85;color:var(--ink-2);
  max-width:560px;margin-top:20px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;position:relative;z-index:1;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 26px;border-radius:999px;
  font-size:14px;font-weight:700;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:#A8371F;}
.btn-outline{border-color:var(--line);color:var(--ink);background:transparent;}
.btn-outline:hover{border-color:var(--ink);}
.btn-ghost{color:var(--ink-2);background:transparent;}
.btn-ghost:hover{color:var(--brand);}
.stats{
  margin-top:44px;padding-top:26px;
  border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  max-width:760px;
}
.stat b{display:block;font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.2;}
.stat b small{font-size:12px;font-weight:600;color:var(--ink-2);margin-left:3px;}
.stat span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:4px;}

/* 02 timeline */
.timeline{
  display:flex;gap:16px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:12px;
}
.timeline::-webkit-scrollbar{height:6px;}
.timeline::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px;}
.timeline::-webkit-scrollbar-track{background:transparent;}
.tcard{
  flex:0 0 168px;scroll-snap-align:start;
}
.tcard .ts{
  font-size:11.5px;letter-spacing:.1em;font-variant-numeric:tabular-nums;
  color:var(--ink-3);margin-bottom:8px;
}
.cover{
  position:relative;aspect-ratio:3/4;border-radius:10px;overflow:hidden;
  background:#333;
}
.cover img{width:100%;height:100%;object-fit:cover;}
.cover::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:62%;
  background:linear-gradient(180deg,transparent 38%,rgba(0,0,0,.62));
  pointer-events:none;
}
.cover .tag{
  position:absolute;top:8px;left:8px;z-index:2;
  font-size:10.5px;line-height:1.4;padding:2px 6px;border-radius:5px;
  background:rgba(0,0,0,.55);color:#fff;
}
.tcard h3{font-size:14.5px;font-weight:700;line-height:1.45;margin-top:10px;}
.tcard .upd{font-size:12px;color:var(--ink-3);margin-top:2px;}

.rank-panel{
  margin-top:26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  padding:28px;
}
.rank-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.rank-head strong{font-size:17px;font-weight:800;}
.tabs{display:flex;background:var(--bg-alt);border-radius:999px;padding:4px;gap:2px;}
.tabs button{
  border:0;background:transparent;border-radius:999px;
  padding:5px 16px;font-size:12.5px;font-weight:600;color:var(--ink-2);cursor:pointer;
  transition:background .18s ease,color .18s ease;
}
.tabs button.on{background:var(--surface);color:var(--brand);}
.rank-list{list-style:none;margin-top:18px;}
.rank-list li{
  display:flex;align-items:center;gap:14px;
  padding:12px 0;border-bottom:1px solid var(--line);
}
.rank-list li:last-child{border-bottom:0;}
.rank-no{
  width:26px;flex:0 0 26px;text-align:center;
  font-size:18px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--ink-3);
}
.rank-list li:nth-child(-n+3) .rank-no{color:var(--brand);}
.mini{
  width:46px;height:61px;flex:0 0 46px;border-radius:6px;overflow:hidden;background:#333;
}
.mini img{width:100%;height:100%;object-fit:cover;}
.rank-info{flex:1;min-width:0;}
.rank-info b{display:block;font-size:14.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rank-info span{display:block;font-size:12px;color:var(--ink-3);margin-top:1px;}
.rank-hot{font-size:13px;font-weight:700;flex:0 0 auto;}
.rank-hot small{font-size:11px;font-weight:500;color:var(--ink-3);margin-left:1px;}
.rank-note{font-size:12px;color:var(--ink-3);margin-top:16px;}

/* 03 categories */
.cat-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:var(--surface);
}
.cat-cell{
  padding:26px 24px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.cat-cell:nth-child(3n){border-right:0;}
.cat-cell:nth-last-child(-n+3){border-bottom:0;}
.cat-cell:hover{background:#FDFAF5;}
.cat-cell .cat-name{font-size:12px;letter-spacing:.14em;color:var(--brand);font-weight:700;}
.cat-cell h3{font-size:16px;font-weight:700;line-height:1.45;margin:8px 0 6px;}
.cat-cell p{font-size:13px;line-height:1.75;color:var(--ink-2);}
.cat-cell .cat-meta{font-size:12px;color:var(--ink-3);margin-top:14px;}
.cat-cell .cat-meta b{color:var(--ink);font-weight:700;}

/* 04 library */
.lib-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:6px;}
.lib-card{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:border-color .18s ease,transform .18s ease;
}
.lib-card:hover{border-color:var(--ink-3);transform:translateY(-2px);}
.lib-card .cover{border-radius:0;}
.lib-body{padding:14px 14px 16px;}
.lib-titlerow{display:flex;align-items:baseline;justify-content:space-between;gap:8px;}
.lib-titlerow b{font-size:15px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.lib-titlerow i{font-style:normal;font-size:13px;font-weight:800;color:var(--brand);flex:0 0 auto;}
.lib-meta{font-size:12px;color:var(--ink-3);margin-top:6px;}
.pill{
  display:inline-block;font-size:11.5px;padding:2px 10px;border-radius:999px;
  border:1px solid var(--line);color:var(--ink-2);margin-top:10px;
}
.lib-group{display:none;}
.lib-group.on{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}

.guess{
  margin-top:26px;border:1px dashed var(--ink-3);border-radius:18px;padding:24px;
}
.guess-title{font-size:12px;letter-spacing:.2em;color:var(--ink-3);font-weight:700;}
.guess p{font-size:13.5px;color:var(--ink-2);margin-top:6px;}
.mood-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.mood{
  border:1px solid var(--line);background:transparent;border-radius:999px;
  padding:5px 14px;font-size:12.5px;color:var(--ink-2);cursor:pointer;
}
.mood.on{color:var(--brand);background:var(--brand-soft);border-color:var(--brand);}
.guess-list{list-style:none;margin-top:18px;}
.guess-list li{
  display:flex;align-items:center;gap:12px;
  padding:10px 0;border-top:1px solid var(--line);font-size:13.5px;
}
.guess-list li span.num{color:var(--ink-3);font-variant-numeric:tabular-nums;font-size:12px;}
.guess-list li b{font-weight:700;}
.guess-list li em{font-style:normal;font-size:12px;color:var(--ink-3);margin-left:auto;}
.guess-list li strong{color:var(--brand);font-size:13px;font-weight:800;flex:0 0 auto;}

/* 05 AI find */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start;}
.searchbox{
  display:flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:8px 8px 8px 16px;margin-top:22px;
}
.searchbox input{
  flex:1;border:0;outline:none;background:transparent;font-size:14px;
  padding:6px 0;min-width:0;
}
.searchbox .btn{padding:9px 22px;font-size:13.5px;}
.hint-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.hint{
  font-size:12px;padding:4px 12px;border-radius:999px;
  background:var(--bg-alt);color:var(--ink-2);
}
.tip{font-size:12px;color:var(--ink-3);margin-top:14px;}
.result-card{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;
}
.result-head{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  font-size:13px;color:var(--ink-2);
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.result-head b{font-weight:700;color:var(--ink);}
.result-list{list-style:none;margin-top:6px;}
.result-list li{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line);}
.result-list li:last-child{border-bottom:0;}
.result-list .mini{width:44px;height:58px;flex:0 0 44px;}
.result-list .txt{flex:1;min-width:0;}
.result-list .txt b{display:block;font-size:14px;font-weight:700;}
.result-list .txt span{display:block;font-size:12.5px;color:var(--ink-3);}
.result-list .pct{font-size:13px;font-weight:800;color:var(--brand);flex:0 0 auto;}

/* 06 download */
.dl{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.steps{list-style:none;position:relative;margin-top:20px;}
.steps li{
  position:relative;padding-left:34px;margin-bottom:12px;font-size:14px;color:var(--ink-2);
}
.steps li::before{
  counter-increment:st;
  content:counter(st,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  font-size:11px;font-weight:800;color:var(--brand);letter-spacing:.06em;
}
.steps{counter-reset:st;}
.dl-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.dl-note{font-size:12px;color:var(--ink-3);margin-top:14px;}
.phone-wrap{display:flex;justify-content:center;}
.phone{
  width:min(260px,72vw);aspect-ratio:9/19;border-radius:34px;
  background:var(--ink);padding:10px;box-shadow:0 0 0 1px var(--line);
}
.phone-screen{
  position:relative;width:100%;height:100%;border-radius:26px;overflow:hidden;
  background:linear-gradient(160deg,#2B2118,#14100C 70%);
  display:flex;flex-direction:column;justify-content:flex-end;padding:16px;
}
.phone-screen .glow{
  position:absolute;inset:0;
  background:radial-gradient(circle at 70% 26%,rgba(194,69,45,.4),transparent 60%);
}
.phone-screen .pc-title{
  position:relative;font-size:15px;font-weight:800;color:#fff;line-height:1.4;
}
.phone-screen .pc-meta{position:relative;font-size:11.5px;color:rgba(255,255,255,.7);margin-top:4px;}
.progress{position:relative;height:4px;border-radius:2px;background:rgba(255,255,255,.22);margin-top:12px;overflow:hidden;}
.progress i{display:block;height:100%;width:62%;background:var(--brand);border-radius:2px;}

/* 07 reviews */
.rev-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start;}
.big-score{
  font-size:54px;font-weight:800;line-height:1;letter-spacing:-.03em;
}
.big-score small{font-size:16px;font-weight:600;color:var(--ink-2);margin-left:4px;}
.stars{color:var(--brand);letter-spacing:2px;font-size:15px;margin-top:8px;}
.bars{margin-top:22px;display:flex;flex-direction:column;gap:9px;}
.bar-row{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-3);}
.bar-row .lbl{width:26px;flex:0 0 26px;}
.bar-track{flex:1;height:5px;border-radius:3px;background:var(--bg-alt);overflow:hidden;}
.bar-track i{display:block;height:100%;background:var(--brand);border-radius:3px;}
.bar-row .pctv{width:34px;text-align:right;flex:0 0 34px;}
.rev-note{font-size:12px;color:var(--ink-3);margin-top:18px;max-width:280px;}
.rev-cards{display:flex;flex-direction:column;gap:14px;}
.rev-card{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;
}
.rev-top{display:flex;align-items:center;gap:10px;}
.avatar{
  width:34px;height:34px;border-radius:50%;flex:0 0 34px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
}
.rev-who{flex:1;min-width:0;}
.rev-who b{display:block;font-size:13.5px;font-weight:700;}
.rev-who span{display:block;font-size:11.5px;color:var(--ink-3);}
.rev-top .stars{margin-top:0;font-size:12px;letter-spacing:1px;}
.rev-card blockquote{font-size:13.5px;line-height:1.75;margin-top:12px;border:0;}
.rev-card .extra{font-size:12px;color:var(--ink-2);margin-top:6px;}
.rev-card .meta{font-size:11.5px;color:var(--ink-3);margin-top:10px;}
.write-box{
  border:1px dashed var(--ink-3);border-radius:16px;padding:18px;margin-top:14px;
}
.write-box textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;background:var(--surface);
  padding:10px 12px;min-height:74px;font-size:13.5px;resize:vertical;outline:none;
}
.rate-row{display:flex;align-items:center;gap:10px;margin-top:10px;font-size:12px;color:var(--ink-3);}
.rate-row .stars{cursor:pointer;margin-top:0;}

/* 08 faq */
.faq{border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:20px 0;font-size:15px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none;}
.faq .qno{font-size:11.5px;color:var(--ink-3);font-variant-numeric:tabular-nums;flex:0 0 24px;}
.faq .qt{flex:1;}
.plus{position:relative;width:22px;height:22px;flex:0 0 22px;}
.plus::before,.plus::after{
  content:"";position:absolute;background:var(--ink-2);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.plus::before{left:4px;top:10px;width:14px;height:2px;}
.plus::after{left:10px;top:4px;width:2px;height:14px;}
details[open] .plus::after{transform:rotate(90deg);opacity:0;}
.faq .ans{
  font-size:13.5px;line-height:1.85;color:var(--ink-2);
  padding:0 0 24px 40px;
}

/* 09 footer */
footer{
  margin-top:96px;background:var(--ink);color:rgba(255,255,255,.85);
}
.foot-inner{max-width:1120px;margin:0 auto;padding:64px 24px 28px;}
.foot-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.foot-brand{max-width:320px;}
.foot-brand .brandline span{color:#fff;}
.foot-brand p{font-size:13px;color:rgba(255,255,255,.6);margin-top:12px;line-height:1.8;}
.foot-col h4{
  font-size:11px;letter-spacing:.2em;color:rgba(255,255,255,.45);
  font-weight:700;margin-bottom:14px;
}
.foot-col a{display:block;font-size:13px;color:rgba(255,255,255,.85);margin-bottom:9px;}
.foot-col a:hover{color:#fff;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  font-size:12px;color:rgba(255,255,255,.5);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
}
.foot-age{font-size:12px;color:rgba(255,255,255,.5);margin-top:14px;padding-bottom:24px;}

/* sticky bar */
.stickybar{display:none;}

@media (max-width:1024px){
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .cat-cell:nth-child(3n){border-right:1px solid var(--line);}
  .cat-cell:nth-child(2n){border-right:0;}
  .cat-cell:nth-last-child(-n+3){border-bottom:1px solid var(--line);}
  .cat-cell:nth-last-child(-n+2){border-bottom:0;}
  .lib-grid,.lib-group.on{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:900px){
  section{margin-top:56px;}
  .split,.dl,.rev-grid{grid-template-columns:1fr;gap:32px;}
  .stats{grid-template-columns:repeat(2,1fr);gap:18px 16px;}
  .foot-cols{grid-template-columns:1fr 1fr;gap:28px;}
  .cat-grid{grid-template-columns:1fr;}
  .cat-cell{border-right:0!important;border-bottom:1px solid var(--line)!important;}
  .cat-cell:last-child{border-bottom:0!important;}
  .lib-grid,.lib-group.on{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:560px){
  main{padding:0 18px;}
  .topnav .inner{padding:12px 18px;}
  .navlinks{display:none;}
  .hero{padding-top:36px;}
  .hero-actions .btn{flex:1;}
  .tcard{flex:0 0 148px;}
  .rank-panel{padding:20px 16px;}
  .lib-grid,.lib-group.on{grid-template-columns:repeat(2,1fr);gap:14px;}
  .foot-inner{padding:48px 18px 100px;}
  .foot-cols{grid-template-columns:1fr;}
  .stickybar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;
    align-items:center;justify-content:space-between;gap:12px;
    background:var(--surface);border-top:1px solid var(--line);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    font-size:12.5px;color:var(--ink-2);
    transition:opacity .25s ease;
  }
  .stickybar .btn{padding:9px 18px;font-size:13px;}
  .stickybar.hide{opacity:0;pointer-events:none;}
}