/* ============================================================
   华体会体育台 · 共享样式表 /assets/site.css
   纸张叠层 + 印刷描边 + 仪表盘数字的体育编辑台视觉
   ============================================================ */

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;}
img,svg,video{display:block;max-width:100%;height:auto;}
button,input,select,textarea{font:inherit;color:inherit;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
table{border-collapse:collapse;}

/* ---------- 变量 ---------- */
:root{
  --c-red:#E2382C;
  --c-orange:#F2701A;
  --c-navy:#0D1B2A;
  --c-teal:#14C6A4;
  --c-grass:#2F7D4F;
  --c-violet:#6A4BF0;
  --c-paper:#F7F4EE;
  --c-fog:#D9D4CB;
  --c-graphite:#1F262E;
  --c-amber:#FFB020;

  --ink:#1F262E;
  --ink-soft:#5C656F;
  --ink-faint:#8A929B;
  --rule:1.5px solid var(--c-fog);

  --rail-w:88px;
  --rail-w-open:232px;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --t-fast:140ms ease-out;
  --t-base:220ms ease-out;

  --shadow-card:0 1px 0 rgba(13,27,42,.04),0 14px 30px -22px rgba(13,27,42,.45);
}

/* ---------- 中文排版基线 ---------- */
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--c-paper);
  background-image:
    linear-gradient(0deg,rgba(217,212,203,.34) 1px,transparent 1px);
  background-size:100% 96px;
  padding-left:var(--rail-w);
  overflow-x:hidden;
}

h1{
  font-family:var(--font-display);
  font-size:clamp(32px,5.2vw,64px);
  font-weight:900;
  line-height:1.05;
  letter-spacing:-.02em;
}
h2{
  font-family:var(--font-display);
  font-size:clamp(23px,3.1vw,36px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
}
h3{
  font-family:var(--font-display);
  font-size:clamp(18px,2vw,24px);
  font-weight:700;
  line-height:1.32;
}

.prose{max-width:68ch;}
.prose p{margin-top:1.15em;}
.prose h2{margin-top:1.7em;}
.prose h3{margin-top:1.35em;}
.prose ul,.prose ol{margin-top:1em;padding-left:1.25em;list-style:disc;}
.prose ol{list-style:decimal;}
.prose li+li{margin-top:.4em;}
.prose strong{font-weight:800;}

.lead{font-size:clamp(17px,1.6vw,20px);line-height:1.8;color:var(--ink-soft);max-width:60ch;}
.muted{color:var(--ink-soft);font-size:15px;}
.small{font-size:13px;}

/* ---------- 焦点 ---------- */
:focus-visible{
  outline:2px solid var(--c-teal);
  outline-offset:2px;
  border-radius:2px;
}
.site-header :focus-visible,
.site-footer :focus-visible{outline-color:var(--c-amber);}

.visually-hidden{
  position:absolute!important;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}

/* ---------- Skip link ---------- */
.skip-link{
  position:fixed;
  top:10px;left:10px;
  z-index:400;
  padding:10px 18px;
  background:var(--c-navy);
  color:#fff;
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  border-radius:2px;
  border:1.5px solid var(--c-teal);
  transform:translateY(-220%);
  transition:transform var(--t-base);
}
.skip-link:focus{transform:translateY(0);}

/* ============================================================
   页头 · 左侧轨道导航
   ============================================================ */
.site-header{
  position:fixed;
  top:0;bottom:0;left:0;
  width:var(--rail-w);
  z-index:120;
  display:flex;
  flex-direction:column;
  background:var(--c-navy);
  color:var(--c-paper);
  border-right:1.5px solid rgba(247,244,238,.14);
  overflow:hidden;
  transition:width var(--t-base),box-shadow var(--t-base);
}
.site-header::after{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:3px;
  background:linear-gradient(90deg,var(--c-red),var(--c-orange) 46%,var(--c-teal));
}
.site-header:hover,
.site-header:focus-within{
  width:var(--rail-w-open);
  box-shadow:26px 0 48px -34px rgba(13,27,42,.9);
}

.rail{
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
  min-height:0;
  padding:26px 0 18px;
}

/* 品牌 */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  padding:2px 18px 20px 22px;
  margin-bottom:16px;
  border-bottom:1.5px solid rgba(247,244,238,.16);
  white-space:nowrap;
}
.brand-mark{
  flex:0 0 44px;
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:2px;
  background:linear-gradient(140deg,var(--c-red),var(--c-orange));
  color:#fff;
  font-family:var(--font-display);
  font-size:20px;
  font-weight:900;
  line-height:1;
  box-shadow:3px 3px 0 rgba(20,198,164,.55);
}
.brand-name{
  font-family:var(--font-display);
  font-size:19px;
  font-weight:900;
  letter-spacing:-.01em;
  color:#fff;
  opacity:0;
  transition:opacity var(--t-base);
}
.site-header:hover .brand-name,
.site-header:focus-within .brand-name{opacity:1;}

/* 导航 */
.site-nav{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  overflow-x:hidden;
  padding:4px 0 12px;
}
.nav-list{display:flex;flex-direction:column;gap:4px;}

.nav-link{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:6px;
  padding:11px 14px 11px 30px;
  color:rgba(247,244,238,.7);
  transition:background var(--t-fast),color var(--t-fast);
}
.site-header:hover .nav-link,
.site-header:focus-within .nav-link{
  flex-direction:row;
  align-items:center;
  gap:14px;
}
.nav-link:hover{background:rgba(247,244,238,.07);color:#fff;}
.nav-link[aria-current="page"]{
  color:#fff;
  background:rgba(226,56,44,.2);
}
.nav-link[aria-current="page"]::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:28px;
  background:var(--c-red);
}
.nav-icon{
  flex:0 0 24px;
  width:24px;height:24px;
  display:block;
}
.nav-icon svg{width:100%;height:100%;}
.nav-text{
  font-size:0;
  font-weight:600;
  white-space:nowrap;
  letter-spacing:0;
  transition:font-size var(--t-base);
}
.nav-text::after{
  content:attr(data-short);
  font-size:11px;
  font-weight:600;
  letter-spacing:.06em;
}
.site-header:hover .nav-text,
.site-header:focus-within .nav-text{font-size:14px;}
.site-header:hover .nav-text::after,
.site-header:focus-within .nav-text::after{content:none;}

/* 轨道底部 */
.rail-foot{
  flex:0 0 auto;
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:16px 18px 6px 22px;
  margin-top:auto;
  border-top:1.5px solid rgba(247,244,238,.16);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t-base),visibility var(--t-base);
}
.site-header:hover .rail-foot,
.site-header:focus-within .rail-foot{opacity:1;visibility:visible;}

.update-badge{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--c-amber);
  white-space:nowrap;
}
.badge-dot{
  flex:0 0 8px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--c-amber);
  animation:pulse-dot 2s ease-out infinite;
}
@keyframes pulse-dot{
  0%{box-shadow:0 0 0 0 rgba(255,176,32,.6);}
  70%{box-shadow:0 0 0 8px rgba(255,176,32,0);}
  100%{box-shadow:0 0 0 0 rgba(255,176,32,0);}
}

.rail-cta{
  display:block;
  padding:8px 12px;
  border:1.5px solid rgba(247,244,238,.34);
  border-radius:2px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  text-align:center;
  color:rgba(247,244,238,.92);
  white-space:nowrap;
  transition:background var(--t-fast),border-color var(--t-fast),color var(--t-fast);
}
.rail-cta:hover{
  background:var(--c-red);
  border-color:var(--c-red);
  color:#fff;
}
.rail-cta--alt:hover{
  background:var(--c-teal);
  border-color:var(--c-teal);
  color:var(--c-navy);
}

/* 移动端菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  flex:0 0 auto;
  padding:8px 12px;
  background:transparent;
  border:1.5px solid rgba(247,244,238,.34);
  border-radius:2px;
  color:#fff;
  font-size:12px;
  font-weight:700;
  letter-spacing:.09em;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-teal);color:var(--c-teal);}
.nav-toggle-box{display:grid;gap:5px;width:18px;}
.nav-toggle-bar{
  display:block;
  height:2px;
  border-radius:1px;
  background:currentColor;
  transition:transform var(--t-fast);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child{transform:translateY(3.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child{transform:translateY(-3.5px) rotate(-45deg);}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-left:calc(-1 * var(--rail-w));
  margin-top:clamp(60px,9vw,120px);
  padding-top:clamp(48px,7vw,92px);
  padding-right:clamp(18px,3.5vw,52px);
  padding-bottom:0;
  padding-left:calc(var(--rail-w) + clamp(18px,3.5vw,52px));
  background:var(--c-navy);
  color:rgba(247,244,238,.8);
  border-top:3px solid var(--c-red);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:linear-gradient(90deg,
    var(--c-red) 0 34%,
    var(--c-orange) 34% 52%,
    var(--c-teal) 52% 72%,
    var(--c-grass) 72% 100%);
}
.footer-inner{
  width:100%;
  max-width:1260px;
  margin-inline:auto;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(260px,1.15fr) minmax(0,1.6fr);
  gap:clamp(28px,4vw,64px);
  padding-bottom:clamp(30px,4vw,48px);
  border-bottom:1.5px solid rgba(247,244,238,.15);
}
.footer-wordmark{
  font-family:var(--font-display);
  font-size:clamp(26px,3.4vw,40px);
  font-weight:900;
  line-height:1.05;
  letter-spacing:-.02em;
  color:#fff;
}
.footer-blurb{
  margin-top:16px;
  max-width:46ch;
  font-size:15px;
  line-height:1.8;
  color:rgba(247,244,238,.66);
}
.footer-tag{
  display:inline-block;
  margin-top:20px;
  padding:4px 10px;
  border:1.5px solid rgba(247,244,238,.3);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--c-teal);
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.footer-heading{
  font-family:var(--font-body);
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--c-teal);
  margin-bottom:14px;
}
.footer-list li+li{margin-top:10px;}
.footer-list a{
  font-size:15px;
  color:rgba(247,244,238,.78);
  border-bottom:1.5px solid transparent;
  padding-bottom:1px;
  transition:color var(--t-fast),border-color var(--t-fast);
}
.footer-list a:hover{color:#fff;border-bottom-color:var(--c-red);}

.footer-contact{
  padding:clamp(24px,3.4vw,40px) 0;
  border-bottom:1.5px solid rgba(247,244,238,.15);
}
.contact-list{
  display:grid;
  gap:10px;
  margin-top:6px;
}
.contact-list li{
  display:grid;
  grid-template-columns:96px minmax(0,1fr);
  gap:14px;
  align-items:baseline;
  font-size:15px;
}
.contact-key{
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  color:rgba(247,244,238,.5);
}
.contact-val{
  color:rgba(247,244,238,.9);
  word-break:break-word;
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 26px;
  padding:22px 0 34px;
  font-size:13px;
  color:rgba(247,244,238,.55);
}
.footer-legal-item{margin:0;}
.footer-legal-item:first-child{color:rgba(247,244,238,.72);}

/* ============================================================
   通用组件
   ============================================================ */
.wrap{
  width:100%;
  max-width:1260px;
  margin-inline:auto;
  padding-inline:clamp(18px,3.5vw,52px);
}
.section{padding-block:clamp(44px,6.5vw,96px);}
.section--dark{background:var(--c-navy);color:var(--c-paper);}
.section--dark .lead,
.section--dark .muted{color:rgba(247,244,238,.68);}
.section--tight{padding-block:clamp(24px,3vw,44px);}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px 32px;
  margin-bottom:clamp(24px,3vw,40px);
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--c-red);
  margin-bottom:10px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:1.5px solid transparent;
  border-radius:2px;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.4;
  cursor:pointer;
  transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast),transform var(--t-fast);
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:linear-gradient(120deg,var(--c-red),var(--c-orange));
  color:#fff;
}
.btn-primary:hover{background:linear-gradient(120deg,#c92f24,#d95f10);}
.btn-outline{
  background:transparent;
  border-color:var(--c-graphite);
  color:var(--c-graphite);
}
.btn-outline:hover{background:var(--c-graphite);color:var(--c-paper);}
.btn-ghost{
  background:transparent;
  border-color:var(--c-teal);
  color:var(--c-navy);
}
.btn-ghost:hover{background:var(--c-teal);color:var(--c-navy);}
.section--dark .btn-ghost{color:var(--c-paper);}
.section--dark .btn-ghost:hover{color:var(--c-navy);}

/* 展签 / 角标 */
.plate{
  display:inline-block;
  padding:3px 9px;
  border:1.5px solid var(--c-graphite);
  background:var(--c-paper);
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  line-height:1.5;
}
.section--dark .plate{background:transparent;border-color:rgba(247,244,238,.5);color:var(--c-paper);}
.corner-tag{
  position:absolute;
  top:-11px;left:16px;
  padding:3px 9px;
  background:var(--c-red);
  color:#fff;
  font-size:11px;
  font-weight:700;
  letter-spacing:.1em;
  line-height:1.5;
}
.corner-tag--teal{background:var(--c-teal);color:var(--c-navy);}
.corner-tag--amber{background:var(--c-amber);color:var(--c-navy);}

/* 数据 */
.data{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat{display:flex;flex-direction:column;gap:4px;}
.stat-value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  line-height:1.1;
  letter-spacing:-.02em;
  color:var(--c-navy);
}
.stat-value--accent{color:var(--c-red);}
.stat-value--teal{color:var(--c-teal);}
.stat-label{
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--ink-soft);
}
.section--dark .stat-value{color:#fff;}
.section--dark .stat-label{color:rgba(247,244,238,.6);}

/* 筛选 chips */
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border:1.5px solid var(--c-fog);
  border-radius:999px;
  background:#fff;
  color:var(--ink);
  font-size:13px;
  font-weight:600;
  line-height:1.6;
  cursor:pointer;
  transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast);
}
.chip:hover{border-color:var(--c-graphite);}
.chip[aria-pressed="true"],
.chip.is-active{
  background:var(--c-navy);
  border-color:var(--c-navy);
  color:#fff;
}

/* 标签组 */
.tag-list{display:flex;flex-wrap:wrap;gap:6px;}
.tag{
  display:inline-block;
  padding:2px 8px;
  border-radius:2px;
  background:rgba(47,125,79,.12);
  color:var(--c-grass);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
}
.tag--red{background:rgba(226,56,44,.12);color:var(--c-red);}
.tag--violet{background:rgba(106,75,240,.12);color:var(--c-violet);}

/* 卡片 */
.card{
  position:relative;
  padding:clamp(18px,2.2vw,26px);
  background:#fff;
  border:var(--rule);
  border-radius:3px;
  box-shadow:var(--shadow-card);
}
.card--flush{padding:0;overflow:hidden;}
.card--dark{
  background:var(--c-navy);
  border-color:rgba(247,244,238,.16);
  color:var(--c-paper);
}
.card--dark .card-title{color:#fff;}
.card--dark .muted{color:rgba(247,244,238,.62);}
.card-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:14px;
  margin-bottom:12px;
}
.card-title{
  font-family:var(--font-display);
  font-size:clamp(17px,1.6vw,20px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.card-body{font-size:15px;line-height:1.78;color:var(--ink-soft);}
.card--dark .card-body{color:rgba(247,244,238,.72);}

/* Bento 网格 */
.bento{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(14px,1.8vw,22px);
}
.span-a{grid-column:span 2;grid-row:span 2;}
.span-b{grid-column:span 2;}
.span-c{grid-column:span 1;}
.span-d{grid-column:1 / -1;}
.span-e{grid-column:span 1;grid-row:span 2;}

/* 基础网格工具 */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(16px,2.2vw,28px);}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.2vw,28px);}
.stack{display:flex;flex-direction:column;gap:14px;}

/* 面包屑 */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding-block:18px;
  font-size:13px;
  color:var(--ink-soft);
}
.breadcrumb li{display:flex;align-items:center;gap:10px;}
.breadcrumb li+li::before{content:"/";color:var(--c-fog);}
.breadcrumb a:hover{color:var(--c-red);}

/* 图像容器 */
.figure{
  position:relative;
  margin:0;
  overflow:hidden;
  border:var(--rule);
  border-radius:3px;
  background:
    linear-gradient(135deg,rgba(13,27,42,.06),rgba(20,198,164,.08)),
    var(--c-paper);
}
.figure img,
.figure picture,
.figure svg,
.figure video{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure--wide{aspect-ratio:16/9;}
.figure--square{aspect-ratio:1/1;}
.figure--tall{aspect-ratio:3/4;}
.figure--band{aspect-ratio:21/9;}
.figure-caption{
  margin-top:10px;
  padding-left:12px;
  border-left:3px solid var(--c-teal);
  font-size:13px;
  line-height:1.7;
  color:var(--ink-soft);
}

/* 横向时间轴 / 滑动轨道 */
.timeline{
  display:flex;
  gap:clamp(12px,1.6vw,20px);
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 2px 16px;
  -webkit-overflow-scrolling:touch;
}
.timeline-item{
  flex:0 0 min(320px,78vw);
  scroll-snap-align:start;
}
.timeline::-webkit-scrollbar{height:6px;}
.timeline::-webkit-scrollbar-track{background:rgba(217,212,203,.5);border-radius:3px;}
.timeline::-webkit-scrollbar-thumb{background:var(--c-fog);border-radius:3px;}
.timeline::-webkit-scrollbar-thumb:hover{background:var(--c-red);}

/* 显现动画 */
[data-reveal].is-armed{
  opacity:0;
  transform:translateY(8px);
  transition:opacity 260ms ease-out,transform 260ms ease-out;
}

/* 阅读进度条（由 JS 注入） */
.reading-progress{
  position:fixed;
  top:0;left:0;
  width:100%;height:3px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--c-red),var(--c-orange) 48%,var(--c-teal));
  z-index:300;
  pointer-events:none;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1180px){
  .footer-top{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:900px){
  body{
    padding-left:0;
    padding-top:60px;
    background-size:100% 72px;
  }

  .site-header{
    top:0;right:0;bottom:auto;left:0;
    width:auto;
    height:60px;
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:0 14px 0 16px;
    border-right:0;
    border-bottom:1.5px solid rgba(247,244,238,.18);
    overflow:visible;
    transition:none;
  }
  .site-header:hover,
  .site-header:focus-within{
    width:auto;
    box-shadow:none;
  }
  .site-header::after{height:2px;}

  .rail{
    flex-direction:row;
    align-items:center;
    flex:0 1 auto;
    min-height:0;
    padding:0;
  }
  .brand{
    padding:0;
    margin:0;
    border-bottom:0;
  }
  .brand-mark{
    flex:0 0 34px;
    width:34px;height:34px;
    font-size:16px;
    box-shadow:2px 2px 0 rgba(20,198,164,.55);
  }
  .brand-name{
    font-size:17px;
    opacity:1;
  }

  .rail-foot{display:none;}
  .nav-toggle{display:inline-flex;}

  .site-nav{
    position:fixed;
    top:0;right:0;bottom:0;left:auto;
    width:min(330px,86vw);
    display:flex;
    flex-direction:column;
    padding:78px 0 32px;
    background:var(--c-navy);
    border-left:1.5px solid rgba(247,244,238,.2);
    box-shadow:-30px 0 60px -38px rgba(0,0,0,.9);
    overflow-y:auto;
    z-index:140;
    transform:translateX(102%);
    visibility:hidden;
    transition:transform var(--t-base),visibility var(--t-base);
  }
  .site-nav[data-open]{
    transform:translateX(0);
    visibility:visible;
  }
  .site-nav .nav-list{gap:2px;}
  .site-nav .nav-link{
    flex-direction:row;
    align-items:center;
    gap:14px;
    padding:14px 24px;
  }
  .site-nav .nav-link[aria-current="page"]::before{
    left:0;
    width:4px;
    height:26px;
  }
  .site-nav .nav-text{
    font-size:16px;
    letter-spacing:.02em;
  }
  .site-nav .nav-text::after{content:none;}

  body.nav-open{overflow:hidden;}
  body.nav-open::before{
    content:"";
    position:fixed;
    inset:0;
    background:rgba(13,27,42,.62);
    z-index:130;
    animation:scrim-in 180ms ease-out;
  }
  @keyframes scrim-in{from{opacity:0;}to{opacity:1;}}

  .site-footer{
    margin-left:0;
    padding-left:clamp(18px,4vw,40px);
    padding-right:clamp(18px,4vw,40px);
  }

  .bento{grid-template-columns:repeat(2,minmax(0,1fr));}
  .span-a{grid-column:span 2;grid-row:auto;}
  .span-b{grid-column:span 2;}
  .span-c{grid-column:span 1;}
  .span-d{grid-column:1 / -1;}
  .span-e{grid-column:span 1;grid-row:auto;}

  .grid-2,.grid-3{grid-template-columns:1fr;}
}

@media (max-width:720px){
  body{font-size:16px;}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 18px;}
  .contact-list li{grid-template-columns:1fr;gap:2px;}
  .contact-key{margin-bottom:2px;}
  .timeline-item{flex-basis:min(280px,84vw);}
  .btn{width:100%;}
  .btn-row .btn{width:auto;}
}

@media (max-width:420px){
  .brand-name{font-size:15px;}
  .footer-nav{grid-template-columns:1fr;}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  [data-reveal].is-armed{
    opacity:1;
    transform:none;
  }
}