/* ==========================================================================
   E星电竞 · 全站共享样式  /assets/site.css
   设计语言：深空控制台 / 网格 + 节点 + 对角切割
   ========================================================================== */

/* 1 · 变量 ---------------------------------------------------------------- */
:root{
  --void:#05060E;
  --base:#0B1020;
  --raised:#151C33;
  --grid-line:#243056;
  --text:#EEF2FF;
  --muted:#A6B0CE;
  --cyan:#22E6FF;
  --cyan-soft:rgba(34,230,255,.14);
  --purple:#8A5CFF;
  --purple-soft:rgba(138,92,255,.14);
  --orange:#FF7A1A;
  --orange-soft:rgba(255,122,26,.14);
  --green:#31E39A;
  --paper:#F2F4FA;
  --ink:#05060E;

  --wrap:1240px;
  --wrap-narrow:820px;
  --gutter:clamp(16px,4vw,48px);
  --rail-h:46px;
  --nav-h:62px;

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

  --r-sm:2px;
  --r-md:6px;
  --r-lg:20px;
}

/* 2 · Reset --------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}
input,select,textarea{font:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:var(--r-sm);}
::selection{background:var(--cyan);color:var(--ink);}

/* 3 · 中文排版与页面基色 ---------------------------------------------------- */
body{
  background:var(--void);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(36,48,86,.42) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36,48,86,.42) 1px, transparent 1px);
  background-size:112px 112px;
  opacity:.4;
}
body::after{
  content:"";
  position:fixed;
  top:-20vh;
  left:-10vw;
  width:70vw;
  height:70vh;
  z-index:0;
  pointer-events:none;
  background:radial-gradient(circle at 30% 40%, rgba(34,230,255,.10), transparent 62%),
             radial-gradient(circle at 68% 62%, rgba(138,92,255,.10), transparent 60%);
}
main{position:relative;z-index:1;display:block;}
.site-header,.site-footer{position:relative;z-index:2;}

h1,h2,h3{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.16;}
p{text-wrap:pretty;}

/* 4 · 工具类 -------------------------------------------------------------- */
.container{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.container--narrow{max-width:var(--wrap-narrow);}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.muted{color:var(--muted);}
.divider{height:1px;background:var(--grid-line);border:0;margin:0;}

.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-120px;
  z-index:400;
  background:var(--cyan);
  color:var(--ink);
  font-weight:700;
  font-size:14px;
  padding:10px 20px;
  border-radius:0 0 var(--r-md) var(--r-md);
  transition:top .2s ease;
}
.skip-link:focus{top:0;}

/* 5 · 头部：双层控制台 ----------------------------------------------------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(5,6,14,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

/* 5.1 上层品牌条 */
.brand-rail{
  background:linear-gradient(90deg,#070A16 0%,#0B1020 52%,#080B18 100%);
  border-bottom:1px solid var(--grid-line);
}
.rail-inner{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:6px var(--gutter);
  min-height:var(--rail-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.brand-mark{display:inline-flex;align-items:center;gap:10px;min-width:0;}
.brand-glyph{
  flex:none;
  width:28px;height:28px;
  display:grid;place-items:center;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:15px;
  line-height:1;
  color:#04101A;
  background:linear-gradient(135deg,var(--cyan) 0%,var(--purple) 100%);
  clip-path:polygon(0 0,100% 0,100% 78%,78% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0;}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:16px;letter-spacing:-.01em;transition:color .18s ease;}
.brand-mark:hover .brand-name{color:var(--cyan);}
.brand-tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--muted);white-space:nowrap;}

.rail-tools{display:flex;align-items:center;gap:clamp(8px,1.6vw,20px);min-width:0;}

.region-switch{
  display:inline-flex;
  align-items:center;
  border:1px solid var(--grid-line);
  border-radius:var(--r-sm);
  background:rgba(21,28,51,.72);
  overflow:hidden;
}
.region-btn{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  padding:6px 11px;
  color:var(--muted);
  border-left:1px solid var(--grid-line);
  transition:background .18s ease,color .18s ease;
}
.region-btn:first-child{border-left:0;}
.region-btn:hover{color:var(--text);background:rgba(34,230,255,.08);}
.region-btn.is-active{color:var(--cyan);background:var(--cyan-soft);font-weight:700;}

.line-status{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--muted);
  white-space:nowrap;
}
.status-dot{
  flex:none;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(49,227,154,.16),0 0 12px rgba(49,227,154,.8);
  animation:pulse-dot 2.6s ease-in-out infinite;
}
@keyframes pulse-dot{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.55;transform:scale(.82);}
}
.rail-hours{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted);
  white-space:nowrap;
}

/* 5.2 移动菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:6px 11px;
  border:1px solid var(--grid-line);
  border-radius:var(--r-sm);
  color:var(--text);
  background:rgba(21,28,51,.7);
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle-bars{display:flex;flex-direction:column;gap:4px;}
.nav-toggle-bars span{
  display:block;
  width:16px;height:1.5px;
  background:currentColor;
  transition:transform .22s ease,opacity .18s ease;
}
.site-header[data-open] .nav-toggle-bars span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.site-header[data-open] .nav-toggle-bars span:nth-child(2){opacity:0;}
.site-header[data-open] .nav-toggle-bars span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
.nav-toggle-text{font-size:12px;font-weight:600;letter-spacing:.08em;}

/* 5.3 下层主导航 */
.nav-rail{
  background:rgba(5,6,14,.96);
  border-bottom:1px solid var(--grid-line);
}
.nav-inner{
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
  min-height:var(--nav-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(12px,3vw,40px);
}
.nav-scroller{min-width:0;overflow-x:auto;scrollbar-width:none;}
.nav-scroller::-webkit-scrollbar{display:none;}
.nav-list{display:flex;align-items:center;gap:clamp(4px,1.7vw,26px);}
.nav-item{flex:none;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:18px 2px 16px;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
  white-space:nowrap;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:10px;
  width:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(34,230,255,.15));
  transition:width .26s cubic-bezier(.2,.7,.3,1);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:100%;}
.nav-link[aria-current="page"]{color:var(--cyan);}
.nav-link[aria-current="page"]::after{width:100%;}
.nav-index{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--grid-line);
  transition:color .18s ease;
}
.nav-link:hover .nav-index{color:var(--purple);}
.nav-link[aria-current="page"] .nav-index{color:var(--purple);}
.nav-label{display:inline-block;}

.nav-cta{
  flex:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  color:#04101A;
  background:linear-gradient(120deg,var(--cyan) 0%,#7BF1FF 100%);
  border-radius:var(--r-sm);
  box-shadow:0 0 26px -10px rgba(34,230,255,.9);
  transition:transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 32px -6px rgba(34,230,255,1);}

/* 6 · 页脚 ---------------------------------------------------------------- */
.site-footer{
  margin-top:clamp(56px,9vw,128px);
  border-top:1px solid var(--grid-line);
  background:linear-gradient(180deg,#070A16 0%,#05060E 100%);
}
.footer-inner{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(38px,6vw,72px) var(--gutter) 0;
  display:grid;
  gap:clamp(28px,4vw,64px);
  grid-template-columns:minmax(0,1fr);
}
.footer-brand{display:flex;flex-direction:column;gap:14px;max-width:400px;}
.footer-mark{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:800;
  font-size:22px;
  letter-spacing:-.01em;
  color:var(--text);
  padding-left:14px;
  border-left:3px solid var(--cyan);
  line-height:1.2;
  transition:color .18s ease;
}
.footer-mark:hover{color:var(--cyan);}
.footer-summary{font-size:15px;line-height:1.8;color:var(--muted);}
.footer-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--muted);
}
.footer-cols{
  display:grid;
  gap:clamp(20px,2.5vw,36px);
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
}
.footer-col{display:flex;flex-direction:column;gap:14px;}
.footer-col-title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-links{display:flex;flex-direction:column;gap:9px;}
.footer-link{
  display:inline-block;
  font-size:15px;
  color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-link:hover{color:var(--text);border-bottom-color:var(--purple);}

.footer-meta{
  max-width:var(--wrap);
  margin:clamp(30px,4vw,52px) auto 0;
  padding:18px var(--gutter);
  border-top:1px solid var(--grid-line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px 24px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.02em;
  color:var(--muted);
}
.footer-contact{min-width:0;}
.footer-hours{white-space:nowrap;}

.footer-base{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:16px var(--gutter) clamp(30px,4vw,46px);
  border-top:1px solid rgba(36,48,86,.6);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:baseline;
  gap:10px 24px;
  font-size:12.5px;
  color:var(--muted);
}
.footer-micro{max-width:52ch;line-height:1.7;}
.footer-legal{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);letter-spacing:.03em;}
.footer-icp{color:var(--text);}
.footer-sep{color:var(--grid-line);}

/* 7 · 章节节奏 ------------------------------------------------------------ */
.section{padding:clamp(44px,6.5vw,92px) 0;position:relative;}
.section--wide{padding-block:clamp(52px,8vw,116px);}
.section--narrow .container{max-width:var(--wrap-narrow);}
.section-head{
  display:grid;
  gap:14px;
  max-width:820px;
  margin-bottom:clamp(24px,3.4vw,44px);
}
.section-no{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--purple);
}
.section-title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(27px,3.6vw,46px);
  line-height:1.12;
  letter-spacing:-.02em;
}
.section-title--editorial{
  font-family:var(--font-serif);
  font-weight:600;
  letter-spacing:0;
}
.section-lead{
  font-size:clamp(15px,1.05vw,17px);
  line-height:1.85;
  color:var(--muted);
  max-width:64ch;
}

/* 8 · 专题研究板 ---------------------------------------------------------- */
.panel{
  position:relative;
  background:var(--base);
  border:1px solid var(--grid-line);
  border-radius:var(--r-md);
  padding:clamp(18px,2.4vw,30px);
  overflow:hidden;
}
.panel::after{
  content:"";
  position:absolute;
  top:0;right:0;
  width:34px;height:34px;
  background:linear-gradient(225deg,rgba(34,230,255,.28),transparent 62%);
  clip-path:polygon(100% 0,0 0,100% 100%);
  pointer-events:none;
}
.panel--raised{background:var(--raised);}
.panel-status{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 16px;
  padding-bottom:12px;
  margin-bottom:16px;
  border-bottom:1px dashed var(--grid-line);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--muted);
}
.panel-summary{
  font-size:clamp(16.5px,1.3vw,19px);
  line-height:1.72;
  color:var(--text);
  max-width:58ch;
}
.panel-body{margin-top:16px;font-size:15px;line-height:1.85;color:var(--muted);}
.panel-grid{
  display:grid;
  gap:14px;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  margin-top:20px;
}
.panel-terms{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--grid-line);
  display:grid;
  gap:10px;
  font-size:14px;
  color:var(--muted);
}
.panel-links{
  margin-top:20px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* 9 · 统计块 -------------------------------------------------------------- */
.stat-row{
  display:grid;
  gap:12px;
  grid-template-columns:repeat(auto-fit,minmax(132px,1fr));
}
.stat{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:16px 18px;
  border:1px solid var(--grid-line);
  border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(21,28,51,.92),rgba(11,16,32,.55));
}
.stat-value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3vw,38px);
  font-weight:700;
  line-height:1.1;
  color:var(--cyan);
}
.stat--alert .stat-value{color:var(--orange);}
.stat--group .stat-value{color:var(--purple);}
.stat-label{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--muted);
}

/* 10 · 标签与徽标 --------------------------------------------------------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--grid-line);
  border-radius:999px;
  background:rgba(21,28,51,.6);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--muted);
}
.tag--cyan{color:var(--cyan);border-color:rgba(34,230,255,.45);background:var(--cyan-soft);}
.tag--purple{color:var(--purple);border-color:rgba(138,92,255,.45);background:var(--purple-soft);}
.tag--orange{color:var(--orange);border-color:rgba(255,122,26,.5);background:var(--orange-soft);}
.tag--green{color:var(--green);border-color:rgba(49,227,154,.45);background:rgba(49,227,154,.1);}

/* 11 · 按钮 --------------------------------------------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--primary{
  background:var(--cyan);
  color:#04101A;
  box-shadow:0 0 28px -12px rgba(34,230,255,.95);
}
.btn--primary:hover{background:#66F0FF;transform:translateY(-1px);}
.btn--ghost{
  border-color:var(--grid-line);
  background:rgba(21,28,51,.55);
  color:var(--text);
}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn--quiet{
  padding-inline:0;
  color:var(--cyan);
  border-color:transparent;
  background:none;
}
.btn--quiet:hover{color:#7BF1FF;}

/* 12 · 面包屑 ------------------------------------------------------------- */
.breadcrumb{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:16px var(--gutter) 0;
}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted);
}
.breadcrumb-item{display:inline-flex;align-items:center;}
.breadcrumb-item::before{content:"/";margin-right:6px;color:var(--grid-line);}
.breadcrumb-item:first-child::before{content:none;margin:0;}
.breadcrumb-link{transition:color .18s ease;}
.breadcrumb-link:hover{color:var(--cyan);}
.breadcrumb-current{color:var(--text);}

/* 13 · 表格 --------------------------------------------------------------- */
.data-table{
  width:100%;
  font-size:14px;
  font-variant-numeric:tabular-nums;
}
.data-table th,.data-table td{
  padding:11px 12px;
  border-bottom:1px solid var(--grid-line);
  text-align:left;
  vertical-align:middle;
}
.data-table thead th{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--muted);
  border-bottom-color:var(--grid-line);
}
.data-table tbody tr{transition:background .16s ease;}
.data-table tbody tr:hover{background:rgba(34,230,255,.07);}
.data-table td.is-num{font-family:var(--font-mono);color:var(--cyan);}
.data-table td.is-alert{font-family:var(--font-mono);color:var(--orange);}

/* 14 · 图片容器 ----------------------------------------------------------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  border:1px solid var(--grid-line);
  border-radius:var(--r-md);
  background:linear-gradient(150deg,var(--raised) 0%,var(--base) 62%,#070B18 100%);
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:3 / 4;}
.media-frame--square{aspect-ratio:1 / 1;}
.media-frame--avatar{aspect-ratio:1 / 1;border-radius:50%;}
.media-frame figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:14px 16px;
  font-size:12.5px;
  line-height:1.6;
  color:var(--muted);
  background:linear-gradient(180deg,transparent,rgba(5,6,14,.88));
}
.media-frame::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(36,48,86,.35) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(36,48,86,.35) 1px,transparent 1px);
  background-size:44px 44px;
}

/* 15 · 非对称网格 --------------------------------------------------------- */
.grid-12{
  display:grid;
  gap:clamp(16px,2vw,28px);
  grid-template-columns:repeat(12,minmax(0,1fr));
}
.col-4{grid-column:span 4;}
.col-5{grid-column:span 5;}
.col-6{grid-column:span 6;}
.col-7{grid-column:span 7;}
.col-8{grid-column:span 8;}

/* 16 · 动效协议 ----------------------------------------------------------- */
[data-reveal]{opacity:1;transform:none;}
.js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .55s ease,transform .62s cubic-bezier(.2,.7,.3,1);
  will-change:opacity,transform;
}
.js [data-reveal].is-in{opacity:1;transform:none;}

.scroll-progress{
  position:fixed;
  top:0;left:0;
  width:0;height:2px;
  z-index:300;
  pointer-events:none;
  background:linear-gradient(90deg,var(--cyan),var(--purple) 58%,var(--orange));
  transition:width .12s linear;
}

/* 17 · 响应式 ------------------------------------------------------------- */
@media (max-width:1080px){
  .rail-hours{display:none;}
}
@media (max-width:900px){
  .site-header{position:sticky;}
  .brand-tag{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-rail{display:none;}
  .site-header[data-open] .nav-rail{display:block;}
  .nav-inner{
    flex-direction:column;
    align-items:stretch;
    min-height:0;
    padding:8px var(--gutter) 20px;
    gap:10px;
  }
  .nav-scroller{overflow-x:visible;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-item{border-bottom:1px solid rgba(36,48,86,.65);}
  .nav-link{
    justify-content:flex-start;
    width:100%;
    padding:13px 2px;
    font-size:16px;
  }
  .nav-link::after{bottom:8px;}
  .nav-index{font-size:12px;color:var(--purple);}
  .nav-cta{
    position:fixed;
    right:16px;
    bottom:16px;
    z-index:96;
    padding:14px 20px;
    border-radius:999px;
    box-shadow:0 12px 34px -14px rgba(34,230,255,.95);
  }
  .site-header[data-open] .nav-cta{opacity:0;pointer-events:none;}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));}
  .col-4,.col-5{grid-column:span 3;}
  .col-6{grid-column:span 3;}
  .col-7,.col-8{grid-column:span 6;}
  .footer-inner{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:600px){
  :root{--rail-h:auto;--nav-h:auto;}
  .region-switch .region-btn{padding:5px 9px;font-size:11px;}
  .line-status{display:none;}
  .grid-12{grid-template-columns:minmax(0,1fr);}
  .col-4,.col-5,.col-6,.col-7,.col-8{grid-column:span 1;}
  .footer-meta{flex-direction:column;gap:6px;}
  .footer-base{flex-direction:column;align-items:flex-start;}
}

/* 18 · 可用性偏好 --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none;}
  .scroll-progress{transition:none;}
  .status-dot{animation:none;}
}