:root{
  --bg:#0f1512;
  --bg2:#151d18;
  --bg3:#1b251f;
  --bg4:#223029;
  --ink:#f1e6c8;
  --ink2:#c8b894;
  --ink3:#8f8062;
  --line:rgba(201,164,92,.16);
  --line-soft:rgba(201,164,92,.18);
  --gold:#c9a45c;
  --gold-2:#a9853f;
  --gold-3:#7f6428;
  --red:#a8432f;
  --blue:#7fa6a0;
  --shadow:rgba(0,0,0,.62);
  --display:Georgia,"Songti SC",serif;
  --sans:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  background-image:
    radial-gradient(1100px 620px at 50% -8%,rgba(201,164,92,.10),transparent 62%),
    radial-gradient(900px 520px at 94% 6%,rgba(201,164,92,.05),transparent 60%),
    repeating-linear-gradient(0deg,rgba(230,210,160,.014) 0 1px,transparent 1px 3px),
    repeating-linear-gradient(90deg,rgba(230,210,160,.010) 0 1px,transparent 1px 4px);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.75;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:1;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/></filter><rect width='120' height='120' filter='url(images/10.webp)' opacity='.05'/></svg>");
  opacity:.5;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:1;
  background:radial-gradient(120% 90% at 50% 40%,transparent 55%,rgba(0,0,0,.55) 100%);
}
::selection{background:var(--gold);color:#14201a}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.vp{max-width:1240px;margin:0 auto;padding:0 30px;position:relative;z-index:2}
.sec{padding-top:104px}
.sec:first-of-type{padding-top:56px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head h2{font-family:var(--display);font-size:clamp(26px,3.4vw,40px);font-weight:600;letter-spacing:.02em;line-height:1.25}
.sec-head h2 em{font-style:normal;color:var(--gold)}
.sec-head .side{font-size:13px;color:var(--ink3);text-align:right;max-width:340px;flex-shrink:0}
.kicker{font-family:var(--sans);font-size:12px;letter-spacing:.26em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}

/* header */
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(15,21,18,.82);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-in{max-width:1240px;margin:0 auto;padding:0 30px;height:68px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:34px;width:auto}
.brand-name{font-family:var(--display);font-size:19px;letter-spacing:.14em;color:var(--ink);white-space:nowrap}
.nav{
  display:flex;gap:22px;overflow-x:auto;scrollbar-width:none;flex:1;min-width:0;
}
.nav::-webkit-scrollbar{display:none}
.nav a{font-size:13.5px;color:var(--ink2);white-space:nowrap;padding:6px 0;transition:color .2s}
.nav a:hover{color:var(--gold)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:3px;font-size:13.5px;letter-spacing:.04em;
  border:1px solid transparent;transition:.22s;cursor:pointer;white-space:nowrap;
}
.btn-gold{background:var(--gold);color:#141d17;font-weight:600}
.btn-gold:hover{background:#d7b36d}
.btn-line{border-color:var(--line-soft);color:var(--ink);background:transparent}
.btn-line:hover{border-color:var(--gold);color:var(--gold)}
.topbar .btn{flex-shrink:0}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding-top:24px}
.hero h1{font-family:var(--display);font-size:clamp(38px,5.6vw,68px);line-height:1.12;font-weight:600;letter-spacing:.01em}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero-desc{margin-top:22px;font-size:15.5px;color:var(--ink2);max-width:520px}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.stat{background:var(--bg2);padding:26px 22px}
.stat b{display:block;font-family:var(--display);font-size:34px;color:var(--ink);font-weight:600;line-height:1.1}
.stat b i{font-style:normal;font-size:16px;color:var(--gold);margin-left:3px;vertical-align:super}
.stat span{display:block;margin-top:8px;font-size:12.5px;color:var(--ink3);letter-spacing:.06em}

/* timeline */
.rail{
  display:flex;gap:16px;overflow-x:auto;padding-bottom:18px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:var(--gold-3) transparent;
}
.rail::-webkit-scrollbar{height:5px}
.rail::-webkit-scrollbar-thumb{background:var(--gold-3);border-radius:3px}
.rail-item{flex:0 0 196px;scroll-snap-align:start;position:relative;border-radius:3px;overflow:hidden;border:1px solid var(--line);transition:.25s;background:var(--bg2)}
.rail-item:hover{transform:translateY(-6px);border-color:var(--gold);box-shadow:0 18px 34px var(--shadow)}
.rail-item .pic{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--bg3)}
.rail-item .pic img{width:100%;height:100%;object-fit:cover}
.rail-item .time{position:absolute;top:10px;left:10px;font-size:11px;letter-spacing:.1em;color:var(--gold);background:rgba(10,16,13,.78);border:1px solid var(--line-soft);padding:2px 8px;z-index:3}
.rail-item .tag{position:absolute;top:10px;right:10px;font-size:10.5px;padding:2px 7px;z-index:3;background:rgba(168,67,47,.92);color:#fff;letter-spacing:.06em}
.rail-item .cap{position:absolute;left:0;right:0;bottom:0;padding:34px 12px 12px;background:linear-gradient(transparent,rgba(8,12,10,.92))}
.rail-item .cap h4{font-size:14px;font-weight:600;line-height:1.4}
.rail-item .cap p{font-size:11.5px;color:var(--ink2);margin-top:3px}
.rail-item .hot{position:absolute;right:10px;bottom:46px;font-size:11px;color:var(--gold);z-index:3}

/* ranking */
.rank-wrap{margin-top:42px}
.rank-tabs{display:flex;gap:10px;margin-bottom:22px;flex-wrap:wrap}
.rank-tabs label{
  font-size:13px;padding:7px 18px;border:1px solid var(--line);color:var(--ink2);
  cursor:pointer;transition:.2s;border-radius:2px;
}
.rank-tabs label:hover{color:var(--gold);border-color:var(--gold)}
#r1:checked ~ .rank-tabs label[for=r1],
#r2:checked ~ .rank-tabs label[for=r2],
#r3:checked ~ .rank-tabs label[for=r3]{background:var(--gold);border-color:var(--gold);color:#141d17;font-weight:600}
.rank-input{position:absolute;opacity:0;pointer-events:none}
.rank-panel{display:none;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
#r1:checked ~ .rank-body .p1,
#r2:checked ~ .rank-body .p2,
#r3:checked ~ .rank-body .p3{display:grid}
.rank-item{background:var(--bg2);display:flex;gap:12px;padding:14px;align-items:center;transition:.2s;border:1px solid transparent}
.rank-item:hover{background:var(--bg3);border-color:var(--gold)}
.rank-no{font-family:var(--display);font-size:19px;color:var(--ink3);width:24px;flex-shrink:0;text-align:center}
.rank-item:nth-child(-n+4) .rank-no{color:var(--gold)}
.rank-item img{width:44px;height:58px;object-fit:cover;flex-shrink:0;border-radius:2px}
.rank-info{min-width:0}
.rank-info h4{font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-info p{font-size:11px;color:var(--ink3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-info span{display:block;margin-top:3px;font-size:11px;color:var(--gold)}

/* topics */
.topics{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.topic{background:var(--bg2);padding:30px 26px;transition:.22s;border:1px solid transparent}
.topic:hover{border-color:var(--gold);background:var(--bg3)}
.topic .kicker{margin-bottom:10px;font-size:11px}
.topic h4{font-family:var(--display);font-size:21px;font-weight:600;margin-bottom:10px}
.topic p{font-size:13.5px;color:var(--ink2);min-height:56px}
.topic .meta{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);font-size:11.5px;color:var(--ink3);display:flex;justify-content:space-between}

/* library */
.lib{border:1px solid var(--line);background:var(--bg2)}
.lib-input{position:absolute;opacity:0;pointer-events:none}
.lib-tabs{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line)}
.lib-tabs label{
  padding:20px 24px;cursor:pointer;border-right:1px solid var(--line);transition:.2s;position:relative;
  display:block;
}
.lib-tabs label:last-child{border-right:none}
.lib-tabs label::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:transparent;transition:.2s}
.lib-tabs strong{display:block;font-family:var(--display);font-size:17px;font-weight:600;color:var(--ink2);letter-spacing:.04em}
.lib-tabs small{display:block;font-size:11.5px;color:var(--ink3);margin-top:3px}
#l1:checked ~ .lib-tabs label[for=l1]::after,
#l2:checked ~ .lib-tabs label[for=l2]::after,
#l3:checked ~ .lib-tabs label[for=l3]::after{background:var(--gold)}
#l1:checked ~ .lib-tabs label[for=l1] strong,
#l2:checked ~ .lib-tabs label[for=l2] strong,
#l3:checked ~ .lib-tabs label[for=l3] strong{color:var(--gold)}
.lib-panel{display:none;padding:28px 26px 34px}
#l1:checked ~ .lib-body .lp1,
#l2:checked ~ .lib-body .lp2,
#l3:checked ~ .lib-body .lp3{display:block}
.lib-meta{font-size:12.5px;color:var(--ink3);margin-bottom:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.lib-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.dcard{position:relative}
.dcard .cov{position:relative;aspect-ratio:3/4;overflow:hidden;border:1px solid var(--line);border-radius:3px;background:var(--bg3);transition:.25s}
.dcard .cov img{width:100%;height:100%;object-fit:cover;transition:.35s}
.dcard:hover .cov{border-color:var(--gold);transform:translateY(-5px);box-shadow:0 16px 30px var(--shadow)}
.dcard:hover .cov img{transform:scale(1.04)}
.dcard .score{
  position:absolute;top:10px;right:10px;width:38px;height:38px;border-radius:50%;
  background:rgba(201,164,92,.94);color:#141d17;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;z-index:3;
}
.dcard .badge{position:absolute;top:10px;left:10px;font-size:10.5px;padding:2px 7px;z-index:3;letter-spacing:.06em}
.b-ai{background:var(--blue);color:#12201c}
.b-new{background:var(--red);color:#fff}
.b-mod{background:var(--gold-2);color:#171f1a}
.b-org{background:var(--gold);color:#171f1a}
.dcard .hotnum{position:absolute;right:10px;bottom:10px;font-size:11px;color:var(--ink);background:rgba(8,12,10,.72);padding:1px 7px;border-radius:2px;z-index:3}
.dcard h4{font-size:14.5px;font-weight:600;margin-top:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dcard .info{font-size:11.5px;color:var(--ink3);margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* AI */
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.ai-left,.ai-right{background:var(--bg2);padding:38px 34px}
.ai-left h3{font-family:var(--display);font-size:clamp(22px,2.6vw,30px);font-weight:600;margin-bottom:16px}
.ai-left p{font-size:14px;color:var(--ink2);margin-bottom:14px}
.fake-input{
  display:block;width:100%;background:var(--bg);border:1px solid var(--line-soft);
  color:var(--ink2);font-size:13.5px;padding:14px 16px;border-radius:3px;margin:20px 0 14px;
  font-family:var(--sans);resize:none;
}
.find-btn{display:block;width:100%;text-align:center;background:var(--gold);color:#141d17;font-weight:600;font-size:14px;padding:13px;border-radius:3px;letter-spacing:.08em}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chips span{font-size:12px;padding:5px 12px;border:1px solid var(--line);color:var(--ink2);border-radius:2px}
.tips{font-size:11.5px;color:var(--ink3);margin-top:16px;line-height:1.8}
.res-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:6px}
.res-head h4{font-size:14.5px;font-weight:600}
.res-head span{font-size:12px;color:var(--gold)}
.res-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.res-list li:last-of-type{border-bottom:none}
.res-no{font-family:var(--display);color:var(--gold);font-size:15px;width:18px;flex-shrink:0;padding-top:2px}
.res-list img{width:46px;height:62px;object-fit:cover;border-radius:2px;flex-shrink:0}
.res-txt{min-width:0;flex:1}
.res-txt h5{font-size:13.5px;font-weight:600;margin-bottom:2px}
.res-txt p{font-size:12px;color:var(--ink2);line-height:1.6}
.res-txt .dim{font-size:11px;color:var(--ink3);margin-top:4px}
.match{font-size:12px;color:var(--gold);white-space:nowrap;flex-shrink:0}

/* download */
.dl-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.dl-left,.dl-right{background:var(--bg2);padding:44px 38px}
.dl-left h2{font-family:var(--display);font-size:clamp(24px,3vw,34px);font-weight:600;margin-bottom:16px}
.dl-left h2 em{font-style:normal;color:var(--gold)}
.dl-left p{font-size:14px;color:var(--ink2);margin-bottom:14px}
.steps{margin-top:26px;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding-left:44px;margin-bottom:18px;font-size:13.5px;color:var(--ink2)}
.steps li::before{
  content:counter(s);position:absolute;left:0;top:1px;width:26px;height:26px;
  border:1px solid var(--gold);color:var(--gold);font-family:var(--display);font-size:13px;
  display:flex;align-items:center;justify-content:center;border-radius:50%;
}
.steps li b{color:var(--ink);font-weight:600}
.dl-right{
  background-color:var(--bg3);
  background-image:repeating-linear-gradient(135deg,rgba(201,164,92,.05) 0 8px,transparent 8px 16px);
  display:flex;flex-direction:column;align-items:center;text-align:center;
}
.qr{
  width:160px;height:160px;background:var(--bg);border:1px solid var(--gold-3);
  display:flex;align-items:center;justify-content:center;padding:10px;border-radius:3px;
}
.qr svg{width:100%;height:100%}
.dl-right p{font-size:12.5px;color:var(--ink2);margin-top:16px;line-height:1.9}
.dl-btns{display:flex;flex-direction:column;gap:10px;width:100%;margin-top:20px}
.dl-btns .btn{width:100%}

/* reviews */
.rev-grid{display:grid;grid-template-columns:1fr 1.45fr;gap:48px;align-items:start}
.big-score{font-family:var(--display);font-size:60px;line-height:1;color:var(--gold)}
.big-score small{font-size:20px;color:var(--ink3);margin-left:4px}
.stars{color:var(--gold);letter-spacing:.24em;font-size:15px;margin:10px 0 6px}
.rev-left .note{font-size:12.5px;color:var(--ink3);margin-bottom:24px}
.dist-row{display:flex;align-items:center;gap:10px;margin-bottom:9px;font-size:12px;color:var(--ink3)}
.dist-bar{flex:1;height:5px;background:var(--bg4);border-radius:3px;overflow:hidden}
.dist-bar i{display:block;height:100%;width:var(--w);background:var(--gold)}
.rev-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.rc{border:1px solid var(--line);background:var(--bg2);padding:22px;border-radius:3px;transition:.2s}
.rc:hover{border-color:var(--gold)}
.rc-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.ava{width:34px;height:34px;border-radius:50%;background:var(--gold-3);color:var(--ink);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.rc-name{font-size:13.5px;font-weight:600}
.rc-prog{font-size:11px;color:var(--ink3)}
.rc blockquote{font-size:13px;color:var(--ink);border-left:2px solid var(--gold);padding-left:10px;margin-bottom:10px;font-style:normal}
.rc p{font-size:12.5px;color:var(--ink2);line-height:1.75}
.rc-foot{display:flex;gap:14px;margin-top:14px;font-size:11px;color:var(--ink3);flex-wrap:wrap}
.rev-form{margin-top:26px;border:1px solid var(--line);background:var(--bg2);padding:24px;border-radius:3px}
.rev-form h3{font-size:15px;font-weight:600;margin-bottom:16px}
.rev-form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.rev-form input,.rev-form textarea{
  width:100%;background:var(--bg);border:1px solid var(--line-soft);color:var(--ink);
  font-family:var(--sans);font-size:13px;padding:11px 13px;border-radius:3px;
}
.rev-form textarea{min-height:88px;resize:vertical}
.rev-form .btn{margin-top:14px}

/* faq */
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:grid;grid-template-columns:52px 1fr 28px;
  align-items:center;padding:22px 4px;gap:10px;transition:.2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--gold)}
.faq-no{font-family:var(--display);color:var(--gold);font-size:14px}
.faq-q{font-size:15px;font-weight:500}
.faq-plus{font-family:var(--sans);font-size:20px;color:var(--ink3);transition:.25s;text-align:center;line-height:1}
.faq-item[open] .faq-plus{transform:rotate(45deg);color:var(--gold)}
.faq-a{padding:0 32px 24px 62px;font-size:13.5px;color:var(--ink2)}
.faq-a b{color:var(--gold);font-weight:600}

/* footer */
.footer{border-top:1px solid var(--line);margin-top:104px;padding:56px 0 30px;background:rgba(11,16,13,.6);position:relative;z-index:2}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand img{height:30px;width:auto}
.foot-brand span{font-family:var(--display);font-size:17px;letter-spacing:.12em}
.foot-p{font-size:12.5px;color:var(--ink3);line-height:1.9;max-width:300px}
.foot-col h5{font-size:12.5px;color:var(--ink2);letter-spacing:.16em;margin-bottom:14px;font-weight:600}
.foot-col li{margin-bottom:9px}
.foot-col a{font-size:12.5px;color:var(--ink3);transition:.2s}
.foot-col a:hover{color:var(--gold)}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:11.5px;color:var(--ink3);
}
.foot-bottom a{color:var(--ink3)}
.foot-bottom a:hover{color:var(--gold)}
.to-top{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;
  background:var(--gold);color:#141d17;display:flex;align-items:center;justify-content:center;
  font-size:17px;z-index:70;box-shadow:0 8px 20px var(--shadow);transition:.2s;
}
.to-top:hover{background:#d7b36d;transform:translateY(-3px)}

/* responsive */
@media (max-width:1080px){
  .rank-panel{grid-template-columns:repeat(3,1fr)}
  .hero{gap:36px}
}
@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:36px}
  .dl-grid{grid-template-columns:1fr}
  .rev-grid{grid-template-columns:1fr;gap:34px}
  .lib-grid{grid-template-columns:repeat(2,1fr)}
  .ai-grid{grid-template-columns:1fr}
  .topbar-in{gap:16px}
  .nav{display:none}
}
@media (max-width:820px){
  .topics{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .sec-head .side{text-align:left}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:760px){
  .rank-panel{grid-template-columns:repeat(2,1fr)}
  .rev-cards{grid-template-columns:1fr}
}
@media (max-width:640px){
  .vp{padding:0 20px}
  .sec{padding-top:76px}
  .rail-item{flex:0 0 152px}
  .faq-item summary{grid-template-columns:38px 1fr 24px;padding:18px 0}
  .faq-a{padding:0 8px 20px 48px}
  .hero-actions .btn{flex:1}
}
@media (max-width:520px){
  .topics{grid-template-columns:1fr}
  .lib-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .rev-form .row{grid-template-columns:1fr}
  .lib-tabs label{padding:16px 12px}
  .lib-tabs strong{font-size:14px}
  .ai-left,.ai-right,.dl-left,.dl-right{padding:26px 20px}
}
@media (max-width:480px){
  .rank-panel{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
}
@media (hover:none){
  .rail-item:hover,.dcard:hover .cov,.topic:hover,.rc:hover{transform:none;box-shadow:none}
}