:root{
  --bg:#FAFBFD;
  --surface:#FFFFFF;
  --ink:#1F1D2B;
  --ink2:#4C4960;
  --line:#E7E5EF;
  --gold:#E8A81C;
  --gold2:#C98C10;
  --cyan:#22B8CC;
  --cyan2:#1296A8;
  --shadow:5px 5px 0 rgba(31,29,43,.09);
  --shadow-gold:5px 5px 0 rgba(232,168,28,.55);
  --shadow-cyan:5px 5px 0 rgba(34,184,204,.38);
  --wrap:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,li,figure,figcaption,blockquote,dl,dd,dt,table,details,summary,th,td{margin:0;padding:0}
ul,ol{list-style:none}
table{border-collapse:collapse;width:100%}
section[id]{scroll-margin-top:96px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  white-space:nowrap;font-family:inherit;font-size:15px;font-weight:700;line-height:1;
  padding:12px 22px;border-radius:12px;border:2px solid var(--ink);
  background:var(--surface);color:var(--ink);cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease;
}
.btn:hover{transform:translate(-2px,-2px)}
.btn.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:5px 5px 0 rgba(232,168,28,.7)}
.btn.btn-primary:hover{background:var(--ink);color:#fff;box-shadow:7px 7px 0 rgba(232,168,28,.85)}
.btn.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--ink)}
.btn.btn-ghost:hover{background:var(--surface);color:var(--ink);box-shadow:5px 5px 0 rgba(31,29,43,.14)}

.top{position:sticky;top:0;z-index:60;background:rgba(250,251,253,.95);border-bottom:2px solid var(--ink);backdrop-filter:saturate(1.2) blur(8px)}
.top__in{max-width:var(--wrap);margin:0 auto;padding:0 22px;min-height:68px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand img{width:38px;height:38px;border-radius:10px}
.brand span{font-size:19px;font-weight:700;letter-spacing:.1em}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:wrap}
.nav a{display:inline-block;padding:8px 13px;border-radius:10px;font-size:15px;color:var(--ink2);transition:background .16s ease,color .16s ease}
.nav a:hover{background:var(--surface);color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink)}
.nav a[aria-current="page"]{background:var(--surface);color:var(--ink);font-weight:700;box-shadow:inset 0 0 0 2px var(--ink)}
.top__cta{flex:0 0 auto}

.shell{
  max-width:var(--wrap);margin:0 auto;padding:32px 22px 10px;
  display:grid;grid-template-columns:198px minmax(0,1fr);gap:34px;align-items:start;
}
.rail{position:sticky;top:92px}
.rail__box{border:2px solid var(--ink);border-radius:16px;background:var(--surface);padding:16px 14px;box-shadow:var(--shadow-cyan)}
.rail__t{font-size:11.5px;font-weight:700;letter-spacing:.2em;color:var(--ink2)}
.rail__nav{display:flex;flex-direction:column;gap:2px;margin-top:10px}
.rail__nav a{padding:7px 9px;border-radius:9px;font-size:14px;color:var(--ink2);transition:background .16s ease,color .16s ease}
.rail__nav a:hover{background:var(--bg);color:var(--ink)}
.rail__mark{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);font-size:12px;line-height:1.7;color:var(--ink2)}
.main{min-width:0}

.hero{
  position:relative;border:2px solid var(--ink);border-radius:22px;background:var(--surface);
  padding:38px 34px;box-shadow:8px 8px 0 rgba(31,29,43,.1);
  display:grid;grid-template-columns:minmax(0,1fr) 286px;gap:34px;align-items:center;
}
.hero::after{
  content:"";position:absolute;right:14px;bottom:14px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,184,204,.18),rgba(34,184,204,0) 68%);pointer-events:none;
}
.hero>*{position:relative;z-index:1}
.hero h1{font-size:40px;line-height:1.28;letter-spacing:.02em}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:-2px;right:-2px;bottom:3px;height:11px;background:var(--gold);opacity:.42;border-radius:3px;z-index:-1}
.hero .lead{margin-top:16px;font-size:16px;color:var(--ink2);max-width:54ch}
.hero__acts{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero__note{margin-top:14px;font-size:13px;color:var(--ink2)}
.hero__shot figure{border:2px solid var(--ink);border-radius:18px;background:var(--surface);padding:7px;box-shadow:var(--shadow-gold)}
.hero__shot img{width:auto;max-width:100%;height:auto;margin:0 auto;border-radius:12px}

.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:24px}
.stat{border:2px solid var(--ink);border-radius:16px;background:var(--surface);padding:18px 18px 16px;box-shadow:var(--shadow-gold)}
.stat b{display:block;font-size:29px;line-height:1.15;letter-spacing:.02em}
.stat span{display:block;margin-top:4px;font-size:13.5px;color:var(--ink2)}

.sec{margin-top:46px}
.sec__h{font-size:24px;line-height:1.35;letter-spacing:.02em}
.sec__w{display:block;margin-top:10px;animation:wvFloat 3.4s ease-in-out infinite}
.sec__sub{margin-top:9px;font-size:15px;color:var(--ink2);max-width:62ch}
.sec__body{margin-top:18px}
.sec__body p{font-size:15.5px;color:var(--ink2)}
.sec__body p+p{margin-top:12px}

.tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
.tags span{border:1.5px solid var(--line);background:var(--surface);border-radius:999px;padding:5px 13px;font-size:13.5px;color:var(--ink2)}

.grid{display:grid;gap:18px;margin-top:20px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{border:2px solid var(--ink);border-radius:16px;background:var(--surface);padding:20px 18px;box-shadow:var(--shadow)}
.card h3{font-size:17px}
.card p{margin-top:9px;font-size:14.5px;color:var(--ink2)}
.card .ico{width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;margin-bottom:13px;border:2px solid var(--ink);background:var(--bg)}
.card .ico svg{width:20px;height:20px;display:block}

.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:18px;margin-top:22px}
.shots figure{border:2px solid var(--ink);border-radius:16px;background:var(--surface);padding:7px 7px 11px;box-shadow:var(--shadow)}
.shots img{width:100%;height:auto;border-radius:10px}
.shots figcaption{margin-top:9px;font-size:13px;color:var(--ink2);text-align:center;line-height:1.5}

.entries{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:22px}
.entry{display:block;border:2px solid var(--ink);border-radius:18px;background:var(--surface);padding:22px 20px;box-shadow:var(--shadow);transition:transform .16s ease}
.entry:hover{transform:translate(-3px,-3px)}
.entry b{display:block;font-size:17px}
.entry span{display:block;margin-top:9px;font-size:14px;color:var(--ink2)}
.entry i{display:inline-block;margin-top:14px;font-size:13px;font-style:normal;font-weight:700;color:var(--cyan2)}

.quotes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:22px}
.quote{border:2px solid var(--ink);border-radius:16px;background:var(--surface);padding:18px;box-shadow:var(--shadow-cyan)}
.quote p{font-size:14.5px}
.quote cite{display:block;margin-top:11px;font-size:13px;font-style:normal;color:var(--ink2)}

.qa{display:flex;flex-direction:column;gap:12px;margin-top:20px}
details{border:2px solid var(--ink);border-radius:14px;background:var(--surface);padding:14px 17px;box-shadow:4px 4px 0 rgba(31,29,43,.07)}
details summary{cursor:pointer;font-weight:700;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:flex-start}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--cyan2);font-weight:700;font-size:19px;line-height:1}
details[open] summary::after{content:"–"}
details .ans{margin-top:11px;padding-top:11px;border-top:1px dashed var(--line);font-size:14.5px;color:var(--ink2)}
details .ans p+p{margin-top:9px}

.steps{counter-reset:st;display:flex;flex-direction:column;gap:14px;margin-top:22px}
.step{
  display:grid;grid-template-columns:46px minmax(0,1fr);gap:16px;
  border:2px solid var(--ink);border-radius:16px;background:var(--surface);padding:18px 20px;box-shadow:var(--shadow);
}
.step::before{
  counter-increment:st;content:counter(st,decimal-leading-zero);
  font-size:19px;font-weight:700;color:var(--gold2);line-height:1.2;
  border-right:2px dashed var(--line);
}
.step h3{font-size:16.5px}
.step p{margin-top:8px;font-size:14.5px;color:var(--ink2)}
.step ul{margin-top:10px;display:flex;flex-direction:column;gap:6px}
.step li{position:relative;padding-left:16px;font-size:14.5px;color:var(--ink2)}
.step li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--cyan)}

.note{margin-top:22px;border:2px dashed var(--ink);border-radius:16px;background:var(--surface);padding:18px 20px}
.note b{display:block;font-size:15.5px}
.note p{margin-top:8px;font-size:14.5px;color:var(--ink2)}

.fig-wide{margin-top:24px}
.fig-wide figure{border:2px solid var(--ink);border-radius:18px;background:var(--surface);padding:8px 8px 12px;box-shadow:var(--shadow-cyan);max-width:412px;margin:0 auto}
.fig-wide img{width:100%;height:auto;max-width:396px;margin:0 auto;border-radius:12px}
.fig-wide figcaption{margin-top:10px;font-size:13px;color:var(--ink2);text-align:center}

.tbl{margin-top:20px;border:2px solid var(--ink);border-radius:16px;overflow:hidden;background:var(--surface);box-shadow:var(--shadow)}
.tbl table{font-size:14.5px}
.tbl th,.tbl td{padding:12px 15px;text-align:left;border-bottom:1px solid var(--line)}
.tbl th{background:var(--bg);font-size:14px;font-weight:700}
.tbl tr:last-child td{border-bottom:0}
.tbl td:first-child{font-weight:700;white-space:nowrap}

.cta{
  margin-top:48px;border:2px solid var(--ink);border-radius:22px;background:var(--ink);color:#fff;
  padding:36px 30px;text-align:center;box-shadow:8px 8px 0 rgba(232,168,28,.72);
}
.cta h2{font-size:24px;color:#fff;line-height:1.4}
.cta .sub{margin-top:10px;font-size:15px;color:rgba(255,255,255,.74)}
.cta .acts{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta .btn.btn-primary{background:var(--gold);color:var(--ink);border-color:var(--gold);box-shadow:5px 5px 0 rgba(255,255,255,.24)}
.cta .btn.btn-primary:hover{background:var(--gold);color:var(--ink);box-shadow:7px 7px 0 rgba(255,255,255,.3)}
.cta .btn.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.cta .btn.btn-ghost:hover{background:transparent;color:#fff;box-shadow:5px 5px 0 rgba(255,255,255,.18)}

.foot{margin-top:54px;border-top:2px solid var(--ink);background:var(--surface)}
.foot__in{max-width:var(--wrap);margin:0 auto;padding:34px 22px 24px;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:28px}
.foot__in h3{font-size:15px}
.foot__in p{margin-top:10px;font-size:14px;color:var(--ink2);max-width:44ch}
.foot__links{display:flex;flex-direction:column;gap:7px;margin-top:10px}
.foot__links a{padding:2px 0;font-size:14px;color:var(--ink2)}
.foot__links a:hover{color:var(--ink)}
.foot .btn.btn-primary{margin-top:14px;background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:5px 5px 0 rgba(232,168,28,.7);padding:11px 20px;display:inline-flex}
.foot .btn.btn-primary:hover{background:var(--ink);color:#fff}
.foot__bar{max-width:var(--wrap);margin:0 auto;padding:18px 22px 30px;border-top:1px solid var(--line)}
.foot__bar .disc{font-size:13.5px;color:var(--ink2);max-width:76ch}
.foot__bar .cr{margin-top:10px;font-size:13px;color:var(--ink2)}

.totop{
  position:fixed;right:22px;bottom:22px;z-index:70;
  width:44px;height:44px;border-radius:14px;border:2px solid var(--ink);background:var(--surface);
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:var(--ink);
  box-shadow:4px 4px 0 rgba(34,184,204,.4);
}
.totop:hover{background:var(--bg)}

.rise{animation:rise .58s cubic-bezier(.2,.7,.3,1) both}
.rise.d1{animation-delay:.07s}
.rise.d2{animation-delay:.14s}
.rise.d3{animation-delay:.21s}

@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes wvFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(3px)}}

@media (prefers-reduced-motion:reduce){
  .rise,.sec__w{animation:none;opacity:1;transform:none}
  html{scroll-behavior:auto}
}

@media (max-width:980px){
  .shell{grid-template-columns:minmax(0,1fr)}
  .rail{display:none}
  .hero{grid-template-columns:minmax(0,1fr);gap:26px;padding:30px 24px}
  .hero h1{font-size:34px}
  .hero__shot figure{max-width:300px;margin:0 auto}
  .grid--3,.entries,.quotes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot__in{grid-template-columns:1fr 1fr}
}

@media (max-width:620px){
  .top__in{flex-wrap:wrap;padding:10px 18px;gap:10px}
  .brand{order:1}
  .top__cta{order:2;margin-left:auto}
  .nav{order:3;flex:1 0 100%;margin-left:0;justify-content:center}
  .shell{padding:22px 18px 6px;gap:24px}
  .hero{padding:24px 18px;border-radius:18px}
  .hero h1{font-size:28px}
  .hero .lead{font-size:15px}
  .hero__shot figure{max-width:260px}
  .stats{grid-template-columns:minmax(0,1fr)}
  .grid--2,.grid--3,.entries,.quotes{grid-template-columns:minmax(0,1fr)}
  .shots{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .shots figcaption{font-size:12px}
  .sec{margin-top:36px}
  .sec__h{font-size:21px}
  .cta{padding:28px 20px}
  .cta h2{font-size:21px}
  .foot__in{grid-template-columns:minmax(0,1fr);padding:26px 18px 18px}
  .foot__bar{padding:16px 18px 26px}
  .step{grid-template-columns:38px minmax(0,1fr);gap:12px;padding:16px}
  .totop{right:14px;bottom:14px;width:40px;height:40px;font-size:16px}
}