:root{
  --bg:#dce3e6;
  --bg2:#d2dade;
  --card:#ffffff;
  --line:#bfc9ce;
  --ink:#2a2f55;
  --ink2:#494c57;
  --ink3:#787b86;
  --body:#23252b;
  --acc:#8fa33c;
  --w:1080px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei','WenQuanYi Micro Hei',Arial,sans-serif;
  color:var(--body);
  background:var(--bg);
  font-size:16px;
  line-height:1.8;
}
img{display:block;max-width:100%}
a{color:var(--ink);text-decoration:none}
h1,h2,h3,p,figure,figcaption,details,summary,ol,ul{margin:0}
ol,ul{padding:0;list-style:none}
.wrap{width:100%;max-width:var(--w);margin:0 auto;padding:0 22px}

.top{
  position:sticky;
  top:0;
  z-index:20;
  padding:12px 22px 0;
}
.top__in{
  width:100%;
  max-width:var(--w);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:9px 18px;
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:0 6px 20px rgba(42,47,85,.09);
  backdrop-filter:blur(8px);
}
.brand{display:flex;align-items:center;gap:8px;flex:none}
.brand__mark{width:30px;height:30px;flex:none}
.brand__name{font-size:17px;font-weight:700;letter-spacing:.05em;color:var(--ink)}
.nav{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-left:auto}
.nav a{
  font-size:13.5px;
  color:var(--ink3);
  padding:2px 0;
  border-bottom:2px solid transparent;
  transition:color .16s,border-color .16s;
}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:700;border-bottom-color:var(--acc)}

.btn.btn-primary,.btn.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:auto;
  padding:9px 20px;
  border:1px solid transparent;
  border-radius:4px;
  font-size:14px;
  font-weight:600;
  line-height:1.2;
  white-space:nowrap;
  border-left:4px solid var(--ink);
  transition:padding-left .18s,background .18s,color .18s;
}
.btn.btn-primary{background:var(--ink);color:#fff}
.btn.btn-primary:hover{padding-left:24px;color:#fff}
.btn.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line);border-left:4px solid var(--ink)}
.btn.btn-ghost:hover{padding-left:24px;color:var(--ink)}
.btn.btn-primary.btn--lg{padding:12px 30px;font-size:15.5px}
.top__get{flex:none}

.hero{
  position:relative;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:8px;
  background:var(--ink);
}
.hero::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background:linear-gradient(90deg,var(--ink) 0,var(--acc) 42%,transparent 100%);
}
.hero__in{
  display:grid;
  grid-template-columns:1.04fr .96fr;
  gap:46px;
  align-items:center;
  padding:54px 22px 58px;
}
.kicker{
  font-size:12px;
  letter-spacing:.22em;
  color:var(--acc);
  margin-bottom:12px;
}
.hero h1{font-size:38px;line-height:1.26;font-weight:700;color:var(--ink)}
.lead{margin-top:16px;font-size:15.5px;color:var(--ink2);max-width:34em}
.cta-note{margin-top:12px;font-size:13px;color:var(--ink3)}
.hero__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.facts{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:28px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.facts li{display:flex;flex-direction:column}
.facts b{font-size:20px;color:var(--ink);line-height:1.3}
.facts span{font-size:12px;color:var(--ink3)}
.hero__shot{
  width:100%;
  max-width:300px;
  margin:0 auto;
  padding:10px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:4px;
}
.hero__shot img{width:100%;height:auto;border-radius:2px}
.hero__shot figcaption{margin-top:9px;font-size:12px;line-height:1.6;color:var(--ink3)}

.sec{padding:60px 0}
.sec--alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec h2{font-size:27px;line-height:1.4;font-weight:700;color:var(--ink)}
.sub{margin-top:8px;font-size:14.5px;color:var(--ink3);max-width:54em}

.tl{position:relative;margin-top:34px;padding-left:30px}
.tl::before{
  content:"";
  position:absolute;
  left:9px;
  top:8px;
  bottom:8px;
  width:1px;
  background:var(--line);
}
.tl__it{position:relative;padding:0 0 26px 0}
.tl__it:last-child{padding-bottom:0}
.tl__dot{
  position:absolute;
  left:-26px;
  top:9px;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--ink);
}
.tl__b h3{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:5px}
.tl__b p{font-size:15px;color:var(--ink2);max-width:44em}

.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px;align-items:start}
.shot{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:10px}
.shot img{width:100%;height:auto}
.shot figcaption{margin-top:8px;font-size:12px;line-height:1.6;color:var(--ink3)}

.prose{max-width:46em}
.prose p{font-size:15.5px;color:var(--ink2);margin:15px 0}
.prose p:first-child{margin-top:24px}

.fold{margin-top:6px;border-bottom:1px solid var(--line)}
.fold:first-of-type{margin-top:26px;border-top:1px solid var(--line)}
.fold summary{
  cursor:pointer;
  list-style:none;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  padding:14px 0;
}
.fold summary::-webkit-details-marker{display:none}
.fold summary::after{content:"›";float:right;color:var(--acc);font-weight:400;transition:transform .18s}
.fold[open] summary::after{transform:rotate(90deg)}
.fold p{padding:0 0 16px;font-size:15px;color:var(--ink2);max-width:46em}
.more{margin-top:24px;font-size:15px}
.more a{color:var(--ink);border-bottom:2px solid var(--acc);padding-bottom:1px}

.cta{background:var(--ink);color:#fff;padding:58px 0;text-align:center}
.cta__in{display:flex;flex-direction:column;align-items:center}
.cta h2{font-size:27px;font-weight:700;color:#fff}
.cta__note{margin:12px 0 22px;font-size:14px;color:rgba(255,255,255,.72)}
.cta .btn.btn-primary{background:#fff;color:var(--ink);border-left-color:var(--acc)}
.cta .btn.btn-primary:hover{background:#eef1f3;color:var(--ink)}

.foot{background:var(--ink);color:#e7e9f0;padding:46px 0 0}
.foot__in{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:36px;padding-bottom:32px}
.foot__col{display:flex;flex-direction:column;gap:8px}
.foot__brand{display:flex;align-items:center;gap:8px}
.foot__brand span{font-size:16px;font-weight:700;color:#fff}
.foot__say{margin-top:6px;font-size:13px;color:rgba(231,233,240,.66)}
.foot__t{font-size:11.5px;letter-spacing:.16em;color:rgba(231,233,240,.5);margin-bottom:2px}
.foot__col a{font-size:13.5px;color:rgba(231,233,240,.82)}
.foot__col a:hover{color:#fff}
.foot__base{border-top:1px solid rgba(255,255,255,.14);padding:16px 22px 20px}
.foot__base p{font-size:12.5px;color:rgba(231,233,240,.55);line-height:1.7}

@media (max-width:980px){
  .hero__in{grid-template-columns:1fr;gap:30px;padding:42px 22px 46px}
  .hero h1{font-size:31px}
  .hero__shot{max-width:290px}
  .shots{grid-template-columns:repeat(2,1fr)}
  .foot__in{grid-template-columns:1fr 1fr;gap:26px}
  .foot__col:first-child{grid-column:1/-1}
}

@media (max-width:620px){
  body{font-size:15px}
  .top{padding:8px 12px 0}
  .top__in{padding:7px 12px;gap:8px;border-radius:14px}
  .brand__name{display:none}
  .nav{gap:11px;margin-left:auto}
  .nav a{font-size:12px}
  .btn.btn-primary,.btn.btn-ghost{padding:8px 14px;font-size:13px}
  .wrap{padding-left:16px;padding-right:16px}
  .hero::before{width:5px}
  .hero__in{padding:34px 16px 40px}
  .hero h1{font-size:25px}
  .lead{font-size:14.5px}
  .sec{padding:42px 0}
  .sec h2{font-size:22px}
  .shots{grid-template-columns:1fr}
  .tl{padding-left:22px}
  .tl__dot{left:-22px}
  .foot__in{grid-template-columns:1fr;gap:22px}
  .foot__base{padding:14px 16px 18px}
  .cta h2{font-size:22px}
}