:root{
  --ink:#1f1f1f;
  --paper:#ffffff;
  --gray:#f5f5f5;
  --soft:#e9e9e9;
  --muted:#565656;
  --max:1180px;
  --bar:94px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip}
body{
  margin:0;
  background:var(--gray);
  color:var(--ink);
  font-family:"Open Sans",system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.7;
  overflow-wrap:break-word;
  overflow-x:clip;
  max-width:100%;
}
h1,h2,h3,h4{font-family:"Poppins","Open Sans",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;font-weight:600}
img{max-width:100%}
a{color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

/* 顶部：细条 + 品牌角标 */
.topbar{position:sticky;top:0;z-index:40;background:var(--paper);border-bottom:1px solid var(--ink);max-width:100%}
.ticker{
  display:flex;align-items:center;gap:9px;
  background:var(--ink);color:var(--paper);
  font-size:14px;letter-spacing:.05em;
  padding:5px 16px;overflow:hidden;max-width:100%;
}
.pulse{width:8px;height:8px;background:var(--paper);flex:0 0 auto;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.2}}
.ticker-txt{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.masthead{
  display:flex;align-items:center;gap:10px;
  padding:7px 16px;max-width:var(--max);margin:0 auto;
  min-width:0;
}
.mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;flex:0 0 auto;
  border:1px solid var(--ink);background:var(--paper);
  text-decoration:none;
}
.mark-img{width:100%;height:100%;object-fit:cover;display:block}
.mark-txt{font-family:"Poppins",sans-serif;font-weight:600;font-size:18px;line-height:1}
.masthead-txt{
  font-family:"Poppins",sans-serif;font-weight:600;letter-spacing:.03em;
  min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
}

/* 骨架 */
.shell{
  max-width:var(--max);margin:0 auto;
  padding:14px 14px 44px;
  display:grid;grid-template-columns:minmax(0,1fr);gap:14px;
  align-items:start;
  min-width:0;
}

/* 左侧锚点栏 */
.rail{background:var(--paper);border:1px solid var(--ink);min-width:0;overflow:hidden;max-width:100%}
.rail-title{
  margin:0;padding:7px 13px;
  font-size:14px;letter-spacing:.16em;font-weight:600;
  background:var(--gray);border-bottom:1px solid var(--ink);
}
.rail-title span{display:inline-block;border-bottom:2px solid var(--ink);padding-bottom:1px}
.rail-nav{min-width:0;max-width:100%}
.rail-nav ul{
  list-style:none;margin:0;padding:0;
  display:flex;overflow-x:auto;max-width:100%;
  -webkit-overflow-scrolling:touch;
}
.rail-nav li{flex:0 0 auto}
.rail-nav a{
  display:flex;align-items:center;gap:8px;
  min-height:44px;padding:11px 14px;
  font-size:16px;text-decoration:none;white-space:nowrap;
  border-right:1px solid var(--soft);
  transition:background .18s ease,color .18s ease;
}
.rail-nav a:hover,.rail-nav a:focus-visible,.rail-nav a.active{background:var(--ink);color:var(--paper)}
.dotm{width:6px;height:6px;flex:0 0 auto;background:currentColor;display:inline-block}

/* 主体 */
main{min-width:0;display:block;max-width:100%}

.hero{
  position:relative;
  display:grid;gap:18px;
  grid-template-columns:minmax(0,1fr);
  grid-template-areas:"copy" "collage" "badges";
  align-content:center;
  min-height:clamp(420px,74svh,880px);
  padding:22px 16px 28px;
  margin:0 0 14px;
  background:var(--paper);
  border:1px solid var(--ink);
  min-width:0;
}
.hero-copy{grid-area:copy;display:flex;align-items:center;justify-content:center;text-align:center;min-width:0}
h1{
  margin:0;
  font-size:clamp(27px,7vw,50px);
  line-height:1.2;
  letter-spacing:-.01em;
  overflow-wrap:break-word;
}
.collage{
  grid-area:collage;margin:0;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;
  align-items:center;
  min-width:0;
}
.collage.is-empty{display:none}
.shot{border:1px solid var(--ink);background:var(--gray);overflow:hidden;aspect-ratio:3/4;min-width:0}
.shot-a{margin-top:26px}
.shot-b{margin-bottom:26px}
.shot-img{width:100%;height:100%;object-fit:cover;display:block}
.badges{grid-area:badges;display:flex;flex-wrap:wrap;gap:8px;justify-content:center;min-width:0}
.chip{
  border:1px solid var(--ink);background:var(--paper);
  padding:7px 13px;font-size:15px;letter-spacing:.03em;
}

/* 正文分区 */
main > section:not(.hero){
  background:var(--paper);
  border:1px solid var(--ink);
  padding:22px 18px 24px;
  margin:0 0 14px;
  scroll-margin-top:calc(var(--bar) + 14px);
  transition:border-color .18s ease;
  min-width:0;
  max-width:100%;
}
main > section:not(.hero):hover{border-color:#000}
main > section:not(.hero) h2{
  margin:0 0 14px;
  font-size:clamp(21px,3.2vw,29px);
  line-height:1.34;
  letter-spacing:-.005em;
}
main > section:not(.hero) h2 span{border-bottom:2px solid var(--ink);padding-bottom:2px}
main > section:not(.hero) h3{
  margin:26px 0 10px;
  font-size:20px;line-height:1.4;
}
main > section:not(.hero) h3 span{border-bottom:1px solid var(--ink);padding-bottom:1px}
main > section:not(.hero) p{margin:0 0 14px}
main > section:not(.hero) ul,
main > section:not(.hero) ol{margin:0 0 16px;padding-left:1.25em}
main > section:not(.hero) li{margin:0 0 7px}
main > section:not(.hero) a{text-underline-offset:3px}
main > section:not(.hero) blockquote{
  margin:0 0 16px;padding:12px 16px;
  background:var(--gray);border-left:4px solid var(--ink);
}
main > section:not(.hero) blockquote p:last-child{margin:0}
main > section:not(.hero) figure{margin:0 0 16px;max-width:100%}
main > section:not(.hero) img{border:1px solid var(--ink);height:auto;max-width:100%}

/* 页脚 */
.foot{
  background:var(--ink);color:var(--paper);
  margin-top:26px;
  padding:30px 18px 34px;
  display:grid;grid-template-columns:minmax(0,1fr);gap:22px;
  min-width:0;max-width:100%;
}
.foot section{border-top:1px solid rgba(255,255,255,.28);padding-top:16px;min-width:0}
.foot h2{margin:0 0 10px;font-size:18px;letter-spacing:.05em}
.foot h2 span{border-bottom:1px solid rgba(255,255,255,.6);padding-bottom:2px}
.f-cta .f-top{
  display:inline-flex;align-items:center;
  min-height:44px;margin-top:4px;padding:11px 22px;
  border:1px solid var(--paper);text-decoration:none;
  transition:background .18s ease,color .18s ease;
}
.f-cta .f-top:hover,.f-cta .f-top:focus-visible{background:var(--paper);color:var(--ink)}
.f-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;column-gap:6px;min-width:0}
.f-nav li{min-width:0}
.f-nav a{
  display:flex;align-items:center;gap:8px;
  min-height:42px;padding:10px 12px 10px 0;
  text-decoration:none;font-size:16px;
}
.f-nav a:hover,.f-nav a:focus-visible{text-decoration:underline;text-underline-offset:3px}
.f-note p{margin:0;font-size:15px;color:rgba(255,255,255,.82);overflow-wrap:break-word}

/* 入场 */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}

@media (min-width:760px){
  .foot{grid-template-columns:1.15fr 1fr .75fr;padding:42px 26px 46px;gap:26px}
  .f-note{text-align:right}
  .f-note p{margin-top:auto}
  main > section:not(.hero){padding:30px 30px 32px}
}
@media (min-width:1000px){
  .shell{
    grid-template-columns:248px minmax(0,1fr);
    gap:22px;padding:22px 20px 64px;
  }
  .rail{position:sticky;top:calc(var(--bar) + 10px);overflow:visible}
  .rail-nav ul{flex-direction:column;overflow:visible}
  .rail-nav a{border-right:0;border-bottom:1px solid var(--soft)}
  .hero{
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    grid-template-areas:"collage copy" "collage badges";
    grid-template-rows:1fr auto;
    min-height:calc(100svh - var(--bar) - 30px);
    padding:40px 40px 36px;
  }
  .collage{align-self:center}
  main > section:not(.hero){padding:36px 42px 38px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .pulse{animation:none}
  .js .reveal{opacity:1;transform:none;transition:none}
  .rail-nav a,.f-cta .f-top{transition:none}
}

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