@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root{
  --ink:#0F172A;
  --coral:#FF3B5C;
  --paper:#F5F7FA;
  --line:rgba(15,23,42,.14);
  --muted:#48566B;
  --radius:10px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.68;
  font-weight:400;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
p{margin:0 0 14px}
h2,h3{letter-spacing:-.01em;line-height:1.28}
h2{font-size:clamp(20px,2.4vw,26px);margin:34px 0 8px}
h3{font-size:18px;margin:22px 0 8px}

/* 顶部细条 */
.strip{
  background:var(--coral);
  color:#0F172A;
  overflow:hidden;
  border-bottom:2px solid var(--ink);
}
.strip-track{
  display:flex;
  align-items:center;
  gap:26px;
  padding:7px 0;
  white-space:nowrap;
  width:max-content;
  animation:slide 30s linear infinite;
}
.strip-track span{font-size:12.5px;font-weight:600;letter-spacing:.1em}
.strip-mark{
  background:var(--ink);
  color:var(--paper);
  padding:1px 10px;
  border-radius:2px;
}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){
  .strip-track{animation:none}
}

/* 导航 */
.topbar{
  position:sticky;
  top:0;
  z-index:30;
  background:var(--ink);
  border-bottom:2px solid var(--ink);
}
.pillnav{
  max-width:1180px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 14px;
}
.side{
  display:flex;
  flex:1 1 0;
  gap:8px;
  flex-wrap:wrap;
  margin:0;
  padding:0;
  list-style:none;
}
.side-r{justify-content:flex-end}
.side a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 15px;
  border-radius:999px;
  border:1px solid rgba(245,247,250,.22);
  color:var(--paper);
  font-size:15px;
  font-weight:500;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.side a:hover,.side a:focus-visible{
  background:var(--coral);
  border-color:var(--coral);
  color:#0F172A;
}
.brand{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 18px;
  border-radius:999px;
  background:var(--coral);
  color:#0F172A;
  font-weight:700;
  letter-spacing:-.02em;
  font-size:16px;
}

/* 首屏 */
.wrap{max-width:1180px;margin:0 auto;padding:0 18px}
.hero{
  border-bottom:2px solid var(--ink);
  background-color:var(--paper);
  background-image:
    repeating-linear-gradient(0deg,rgba(15,23,42,.075) 0 1px,transparent 1px 30px),
    repeating-linear-gradient(90deg,rgba(15,23,42,.075) 0 1px,transparent 1px 30px);
}
.hero-in{
  max-width:1180px;
  margin:0 auto;
  padding:30px 18px 34px;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:26px;
  align-items:center;
  min-height:45vh;
}
.hero h1{
  margin:0 0 12px;
  font-size:clamp(27px,4.6vw,44px);
  line-height:1.14;
  letter-spacing:-.025em;
  font-weight:700;
}
.lead{
  color:var(--muted);
  max-width:44ch;
  margin:0 0 4px;
  font-size:16.5px;
}
.collage{
  margin:0;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  align-items:start;
}
.shot{
  width:100%;
  height:auto;
  display:block;
  border:2px solid var(--ink);
  border-radius:4px;
  background:#fff;
}
.shot-b{transform:translateY(20px)}

/* 主体 */
.grid2{
  display:grid;
  grid-template-columns:minmax(0,1fr) 272px;
  gap:30px;
  padding:34px 0 50px;
  align-items:start;
}
.doc{
  background:#fff;
  border:2px solid var(--ink);
  border-radius:var(--radius);
  padding:26px 26px 10px;
  box-shadow:0 8px 0 rgba(15,23,42,.055);
  min-width:0;
}
.doc > h2:first-child{margin-top:0}
.subtitle{
  color:var(--muted);
  font-size:16px;
  margin:0 0 20px;
  padding-bottom:16px;
  border-bottom:2px solid var(--ink);
}
.doc div{
  padding:24px 0;
  border-top:1px dashed var(--line);
}
.doc div:first-of-type{border-top:0}
.doc div[id]{scroll-margin-top:112px}
.doc ul,.doc ol{padding-left:22px;margin:0 0 16px}
.doc li{margin:0 0 8px}
.doc a{color:var(--coral);font-weight:600;border-bottom:1px solid currentColor}
.doc a:hover{color:var(--ink)}
.doc strong{font-weight:600}

/* 侧栏 */
.rail{position:sticky;top:108px}
.rail-title{
  margin:0 0 10px;
  padding:6px 2px 10px;
  font-weight:700;
  letter-spacing:.02em;
  border-bottom:2px solid var(--ink);
}
.rail-list{list-style:none;margin:0;padding:0;display:grid;gap:5px}
.rail-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:6px;
  background:#fff;
  font-size:15px;
  transition:background .18s ease,color .18s ease;
}
.rail-list a:hover,.rail-list a:focus-visible{background:var(--ink);color:var(--paper)}
.num{
  font-size:12px;
  font-weight:700;
  color:var(--coral);
  font-variant-numeric:tabular-nums;
}

/* 页脚 */
.foot{
  border-top:2px solid var(--ink);
  background:var(--ink);
  color:var(--paper);
  padding:34px 20px 22px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:6px 14px;
}
.foot-brand{
  grid-column:1/-1;
  margin:0 0 8px;
  font-size:clamp(34px,9vw,74px);
  line-height:1;
  font-weight:700;
  letter-spacing:-.035em;
  color:#fff;
}
.foot-col{margin:0;min-width:0}
.foot-col a{
  display:inline-block;
  padding:10px 0;
  min-height:40px;
  font-size:15px;
  color:#C7D2E0;
  transition:color .18s ease;
}
.foot-col a:hover,.foot-col a:focus-visible{color:var(--coral)}
.foot small{
  grid-column:1/-1;
  display:block;
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid rgba(245,247,250,.18);
  text-align:center;
  font-size:13px;
  color:#93A2B8;
}

/* 断点 */
@media (max-width:960px){
  .pillnav{flex-wrap:wrap}
  .brand{order:1}
  .side{flex:1 1 100%;order:3;justify-content:flex-start}
  .side-r{order:4}
  .grid2{grid-template-columns:minmax(0,1fr);gap:26px}
  .rail{position:static}
}
@media (max-width:720px){
  body{font-size:16.5px}
  .hero-in{grid-template-columns:minmax(0,1fr);min-height:0;padding-top:24px}
  .collage{grid-template-columns:1fr 1fr;max-width:460px}
  .shot-b{transform:translateY(14px)}
  .doc{padding:20px 18px 6px;box-shadow:0 6px 0 rgba(15,23,42,.055)}
  .foot{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:420px){
  .side a{padding:0 11px;font-size:14.5px}
  .brand{padding:0 13px;font-size:15px}
}
</｜DSML｜ parameter>
</｜DSML｜ invoke>
</｜DSML｜ calls>

button[aria-expanded]{min-width:44px;min-height:44px}