/* ============================================================
   亿万电竞官网 · 共享样式 /assets/site.css
   夜间赛场指挥台：品牌轨道 + 命令栏 + 档案流 + 刻度收尾
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root{
  --base:#060B18;
  --section:#0C1424;
  --panel:#131E33;
  --grid:#223354;
  --cyan:#4CF3E1;
  --violet:#8B5CF6;
  --gold:#F5B942;
  --text:#E8EEF7;
  --muted:#93A3BC;
  --alert:#FF5C7A;

  --rail-w:88px;
  --bar-h:64px;
  --bar-h-compact:56px;
  --maxw:1320px;
  --gutter:24px;

  --ease:cubic-bezier(.2,.7,.2,1);

  --font-body:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  --font-display:"Archivo","Archivo Expanded","PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  padding-left:var(--rail-w);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--base);
  background-image:
    linear-gradient(to right, rgba(34,51,84,.30) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34,51,84,.30) 1px, transparent 1px);
  background-size:24px 24px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ol,ul{
  margin:0;
}

ul,ol{list-style:none;padding:0;}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
}

a{
  color:inherit;
  text-decoration:none;
}

img,svg{max-width:100%;display:block;}

button{
  font:inherit;
  color:inherit;
  background:none;
  border:0;
  padding:0;
  cursor:pointer;
}

input,textarea,select{font:inherit;color:inherit;}

table{border-collapse:collapse;width:100%;}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:2px;
}

::selection{
  background:rgba(76,243,225,.28);
  color:#061019;
}

/* 中文排版基调 */
p,li,dd,dt{word-break:break-word;}
p{text-wrap:pretty;}

/* ---------- 3. 工具类 ---------- */
.mono{
  font-family:var(--font-mono);
  font-feature-settings:"tnum" 1;
  letter-spacing:.04em;
}

.stack > * + *{margin-top:var(--gutter);}

/* ---------- 4. 跳过导航 ---------- */
.skip-link{
  position:absolute;
  top:8px;left:8px;
  z-index:300;
  transform:translateY(-180%);
  padding:10px 18px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.04em;
  color:#04121a;
  background:var(--cyan);
  border-radius:4px;
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0);}

/* ---------- 5. 页头外壳 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
}

/* 5.1 左侧品牌轨道 */
.brand-rail{
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--rail-w);
  z-index:90;
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:16px 0 20px;
  background:linear-gradient(180deg,#0A1220 0%,#060B18 58%,#081020 100%);
  border-right:1px solid var(--grid);
}

.brand-rail__mark{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  width:100%;
  padding:0 0 16px;
  border-bottom:1px solid rgba(34,51,84,.75);
  transition:opacity .18s var(--ease);
}
.brand-rail__mark:hover{opacity:.82;}

.brand-rail__glyph{
  display:grid;
  place-items:center;
  width:42px;height:42px;
  font-family:var(--font-display);
  font-size:20px;
  font-weight:900;
  color:var(--cyan);
  border:1px solid rgba(76,243,225,.45);
  border-radius:4px;
  background:rgba(76,243,225,.07);
  box-shadow:inset 0 0 18px rgba(76,243,225,.14);
}

.brand-rail__name{
  writing-mode:vertical-rl;
  font-family:var(--font-display);
  font-size:13px;
  font-weight:800;
  letter-spacing:.26em;
  color:var(--text);
}

.brand-rail__latin{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:rgba(147,163,188,.7);
}

.rail-season{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:3px;
  width:100%;
  padding:14px 0 12px;
  border-bottom:1px solid rgba(34,51,84,.55);
}
.rail-season__label{
  font-size:9px;
  letter-spacing:.22em;
  color:var(--muted);
}
.rail-season__id{
  font-size:15px;
  font-weight:700;
  color:var(--cyan);
  letter-spacing:.08em;
}
.rail-season__round{
  font-size:11px;
  font-weight:600;
  color:var(--gold);
  letter-spacing:.1em;
}

.rail-ticks{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:7px;
  padding:18px 0 10px;
  width:100%;
}
.rail-ticks__item{
  width:16px;
  height:2px;
  border-radius:1px;
  background:var(--grid);
  transition:width .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
}
.rail-ticks__item:nth-child(3n){
  width:11px;
}
.rail-ticks__item.is-active{
  width:28px;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(76,243,225,.7);
}

.rail-progress{
  position:absolute;
  right:0;top:0;bottom:0;
  width:2px;
  background:rgba(34,51,84,.45);
}
.rail-progress__fill{
  display:block;
  width:100%;
  height:100%;
  transform:scaleY(0);
  transform-origin:top center;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  transition:transform .12s linear;
}

/* 5.2 命令栏 */
.command-bar{
  position:relative;
  background:rgba(9,15,28,.94);
  border-bottom:1px solid var(--grid);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}

.command-bar__inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:var(--bar-h);
  padding:0 22px 0 26px;
  transition:min-height .24s var(--ease);
}
.site-header.is-compact .command-bar__inner{
  min-height:var(--bar-h-compact);
}

.bar-status{
  display:flex;
  align-items:center;
  gap:9px;
  padding-right:18px;
  border-right:1px solid var(--grid);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--muted);
  white-space:nowrap;
}
.bar-status__dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(76,243,225,.16);
  animation:breathe 4s var(--ease) infinite;
}
@keyframes breathe{
  0%,100%{opacity:1;}
  50%{opacity:.42;}
}

.primary-nav{
  margin-left:auto;
}
.primary-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
}
.primary-nav__item{display:flex;}
.primary-nav__link{
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:8px 12px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  border:1px solid transparent;
  border-radius:4px;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.primary-nav__index{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.06em;
  color:rgba(147,163,188,.5);
  transition:color .18s var(--ease);
}
.primary-nav__link:hover{
  color:var(--text);
  background:rgba(19,30,51,.85);
  border-color:rgba(34,51,84,.9);
}
.primary-nav__link[aria-current="page"]{
  color:var(--cyan);
  border-color:rgba(76,243,225,.5);
  background:rgba(76,243,225,.07);
}
.primary-nav__link[aria-current="page"] .primary-nav__index{
  color:var(--cyan);
}

.bar-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:16px;
}

.bar-search{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 12px;
  font-size:12px;
  font-weight:700;
  color:var(--text);
  background:rgba(19,30,51,.65);
  border:1px solid var(--grid);
  border-radius:4px;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.bar-search:hover{
  color:var(--cyan);
  border-color:var(--cyan);
  background:rgba(76,243,225,.08);
}
.bar-search__hint{
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.16em;
  color:var(--muted);
}
.bar-search:hover .bar-search__hint{color:var(--cyan);}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  height:34px;
  padding:0 12px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.06em;
  color:var(--text);
  border:1px solid var(--grid);
  border-radius:4px;
  background:rgba(19,30,51,.65);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.nav-toggle:hover{color:var(--cyan);border-color:var(--cyan);}
.nav-toggle__bars{
  display:flex;
  flex-direction:column;
  gap:4px;
  width:14px;
}
.nav-toggle__bars span{
  display:block;
  height:1.5px;
  width:100%;
  background:currentColor;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}

.bar-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  overflow:hidden;
  background:rgba(34,51,84,.5);
}
.bar-progress__fill{
  display:block;
  width:100%;height:100%;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  transition:transform .12s linear;
}

/* ---------- 6. 主体容器与网格 ---------- */
.main-content{
  display:block;
  position:relative;
}

.page-shell{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:32px 32px 88px;
}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gutter);
}

.grid-7-4{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,4fr);
  gap:var(--gutter);
  align-items:start;
}

/* ---------- 7. 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--muted);
  margin-bottom:22px;
}
.breadcrumb a{
  color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.breadcrumb a:hover{color:var(--cyan);border-bottom-color:var(--cyan);}
.breadcrumb__sep{color:rgba(34,51,84,1);}
.breadcrumb [aria-current="page"]{color:var(--text);}

/* ---------- 8. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:11px 22px;
  font-size:14px;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--text);
  background:rgba(19,30,51,.7);
  border:1px solid var(--grid);
  border-radius:5px;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.btn:hover{
  color:var(--cyan);
  border-color:var(--cyan);
  background:rgba(76,243,225,.08);
}
.btn--primary{
  color:#04121a;
  background:var(--cyan);
  border-color:var(--cyan);
}
.btn--primary:hover{
  color:#04121a;
  background:#7DF8EC;
  border-color:#7DF8EC;
}
.btn--ghost{
  background:transparent;
  border-color:rgba(76,243,225,.45);
  color:var(--cyan);
}
.btn--ghost:hover{
  background:rgba(76,243,225,.10);
  border-color:var(--cyan);
  color:var(--cyan);
}
.btn--sm{
  padding:7px 15px;
  font-size:12px;
}

/* ---------- 9. 标签 / 徽章 / 筛选 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  border-radius:4px;
  border:1px solid rgba(139,92,246,.45);
  color:#B7A2FC;
  background:rgba(139,92,246,.10);
}
.tag--cyan{
  border-color:rgba(76,243,225,.45);
  color:var(--cyan);
  background:rgba(76,243,225,.08);
}
.tag--gold{
  border-color:rgba(245,185,66,.5);
  color:var(--gold);
  background:rgba(245,185,66,.10);
}
.tag--alert{
  border-color:rgba(255,92,122,.5);
  color:var(--alert);
  background:rgba(255,92,122,.10);
}

.code-badge{
  display:inline-flex;
  align-items:center;
  padding:2px 8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--muted);
  background:rgba(6,11,24,.65);
  border:1px solid var(--grid);
  border-radius:4px;
}

.chip{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  font-size:13px;
  font-weight:600;
  color:var(--muted);
  background:rgba(19,30,51,.55);
  border:1px solid var(--grid);
  border-radius:4px;
  transition:color .16s var(--ease),border-color .16s var(--ease),background .16s var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(76,243,225,.4);}
.chip[aria-pressed="true"]{
  color:var(--cyan);
  border-color:var(--cyan);
  background:rgba(76,243,225,.08);
}
.chip[aria-pressed="true"]::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:2px;
  border-radius:2px;
  background:var(--gold);
}

/* ---------- 10. 章节带与标题 ---------- */
.section-band{
  position:relative;
  padding:60px 0;
  background:linear-gradient(180deg,var(--section) 0%,#0A1120 100%);
  border-top:1px solid var(--grid);
  border-bottom:1px solid var(--grid);
}
.section-band--slim{padding:36px 0;}

.section-head{
  display:flex;
  align-items:baseline;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:24px;
}
.section-head__index{
  padding-left:9px;
  border-left:2px solid var(--cyan);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--cyan);
}
.section-head__title{
  font-size:22px;
  font-weight:900;
  letter-spacing:-.01em;
}
.section-head__note{
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--muted);
}

/* ---------- 11. 档案卡 ---------- */
.arch-card{
  position:relative;
  padding:20px 22px;
  background:var(--panel);
  border:1px solid var(--grid);
  border-radius:8px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.arch-card::before{
  content:"";
  position:absolute;
  left:-1px;top:16px;bottom:16px;
  width:2px;
  border-radius:2px;
  background:var(--cyan);
  opacity:.45;
  transition:opacity .2s var(--ease);
}
.arch-card:hover{border-color:rgba(76,243,225,.42);}
.arch-card:hover::before{opacity:1;}

/* ---------- 12. 数据锚点与刻度尺 ---------- */
.data-anchor{
  display:inline-flex;
  align-items:baseline;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(40px,7vw,96px);
  line-height:.95;
  letter-spacing:-.02em;
  color:var(--text);
  font-variant-numeric:tabular-nums;
}
.data-anchor__unit{
  margin-left:8px;
  font-size:.24em;
  letter-spacing:.12em;
  color:var(--cyan);
}

.tick-scale{
  display:flex;
  align-items:flex-end;
  gap:6px;
  height:22px;
}
.tick-scale__tick{
  width:1px;
  height:8px;
  background:var(--grid);
}
.tick-scale__tick--tall{height:15px;}
.tick-scale__tick--on{
  background:var(--cyan);
  box-shadow:0 0 8px rgba(76,243,225,.6);
}

/* ---------- 13. 表格 ---------- */
.table-wrap{
  overflow-x:auto;
  overflow-y:auto;
  max-height:70vh;
  border:1px solid var(--grid);
  border-radius:8px;
  background:rgba(12,20,36,.7);
}

.data-table{
  width:100%;
  font-size:14px;
  line-height:1.5;
}
.data-table thead th{
  position:sticky;
  top:0;
  z-index:2;
  padding:11px 14px;
  text-align:left;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--muted);
  background:#0F1A2C;
  border-bottom:1px solid var(--grid);
  white-space:nowrap;
}
.data-table td{
  padding:11px 14px;
  color:var(--text);
  border-bottom:1px solid rgba(34,51,84,.6);
}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table tbody tr:hover td{background:rgba(76,243,225,.05);}
.data-table tbody tr.is-current td{
  box-shadow:inset 2px 0 0 var(--cyan);
  background:rgba(76,243,225,.06);
}

/* ---------- 14. 图片容器基础 ---------- */
.figure{
  position:relative;
  margin:0;
  overflow:hidden;
  background:var(--section);
  border:1px solid var(--grid);
  border-radius:8px;
}
.figure__media{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,#0C1424 0%,#131E33 58%,rgba(139,92,246,.22) 100%);
  overflow:hidden;
}
.figure__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.figure__media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(76,243,225,.10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(76,243,225,.10) 1px, transparent 1px);
  background-size:32px 32px;
  opacity:.55;
}
.figure__cap{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.04em;
  color:var(--muted);
  border-top:1px solid var(--grid);
  background:rgba(6,11,24,.5);
}
.figure--wide{
  margin-left:calc(-1 * var(--gutter));
  margin-right:0;
}

/* ---------- 15. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:72px;
  background:linear-gradient(180deg,#080F1D 0%,#050A14 100%);
  border-top:1px solid var(--grid);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:-1px;
  height:1px;
  background:linear-gradient(90deg,var(--cyan) 0%,rgba(139,92,246,.7) 42%,rgba(34,51,84,.25) 78%,transparent 100%);
  opacity:.6;
}

.footer-frame{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:56px 32px 26px;
}

.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,2fr);
  gap:48px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(34,51,84,.7);
}

.footer-brand__mark{
  display:inline-flex;
  align-items:center;
  gap:12px;
  transition:opacity .18s var(--ease);
}
.footer-brand__mark:hover{opacity:.82;}
.footer-brand__glyph{
  display:grid;
  place-items:center;
  width:38px;height:38px;
  font-family:var(--font-display);
  font-size:18px;
  font-weight:900;
  color:var(--cyan);
  border:1px solid rgba(76,243,225,.45);
  border-radius:4px;
  background:rgba(76,243,225,.07);
}
.footer-brand__text{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:900;
  letter-spacing:.02em;
  color:var(--text);
}
.footer-brand__tagline{
  margin-top:16px;
  max-width:34ch;
  font-size:13px;
  line-height:1.8;
  color:var(--muted);
}
.footer-brand__meta{
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:rgba(147,163,188,.72);
}
.footer-brand__cta{margin-top:20px;}

.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.footer-col__title{
  padding-left:9px;
  border-left:2px solid var(--cyan);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--cyan);
  margin-bottom:14px;
}
.footer-col__list li + li{margin-top:9px;}
.footer-col__list a{
  font-size:13px;
  color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-col__list a:hover{
  color:var(--cyan);
  border-bottom-color:rgba(76,243,225,.55);
}

.footer-contact{
  display:grid;
  grid-template-columns:170px minmax(0,1fr);
  gap:24px;
  align-items:start;
  margin-top:28px;
  padding:22px 24px;
  background:rgba(19,30,51,.55);
  border:1px solid var(--grid);
  border-radius:8px;
}
.footer-contact__title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--gold);
}
.footer-contact__grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px 28px;
}
.footer-contact__item{
  display:flex;
  flex-direction:column;
  gap:3px;
}
.footer-contact__key{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.12em;
  color:rgba(147,163,188,.75);
}
.footer-contact__val{
  font-size:13px;
  line-height:1.65;
  color:var(--text);
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px dashed rgba(34,51,84,.9);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.05em;
  color:rgba(147,163,188,.72);
}
.footer-legal__note{color:rgba(147,163,188,.5);}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1180px){
  .primary-nav__index{display:none;}
  .primary-nav__link{padding:8px 9px;font-size:13px;}
  .bar-status{font-size:10px;letter-spacing:.02em;}
}

@media (max-width:1080px){
  .grid-7-4{grid-template-columns:minmax(0,1fr);}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:34px;}
  .footer-cols{grid-template-columns:repeat(3,minmax(0,1fr));}
}

@media (max-width:960px){
  body{padding-left:0;}

  .site-header{position:sticky;top:0;}

  .brand-rail{
    position:relative;
    inset:auto;
    width:100%;
    height:48px;
    flex-direction:row;
    align-items:center;
    gap:14px;
    padding:0 16px;
    border-right:0;
    border-bottom:1px solid var(--grid);
  }
  .brand-rail__mark{
    flex-direction:row;
    align-items:center;
    gap:10px;
    width:auto;
    padding:0;
    border-bottom:0;
  }
  .brand-rail__glyph{
    width:30px;height:30px;
    font-size:15px;
  }
  .brand-rail__name{
    writing-mode:horizontal-tb;
    font-size:15px;
    letter-spacing:.06em;
  }
  .brand-rail__latin{display:none;}

  .rail-season{
    flex-direction:row;
    align-items:baseline;
    gap:8px;
    width:auto;
    margin-left:auto;
    padding:0;
    border-bottom:0;
  }
  .rail-season__label{display:none;}
  .rail-season__id{font-size:12px;}
  .rail-season__round{font-size:11px;}

  .rail-ticks{display:none;}
  .rail-progress{display:none;}

  .command-bar__inner{
    gap:12px;
    min-height:52px;
    padding:0 14px;
  }
  .site-header.is-compact .command-bar__inner{min-height:52px;}

  .bar-status{display:none;}

  .nav-toggle{display:inline-flex;}

  .bar-search{
    height:30px;
    padding:0 10px;
    font-size:11px;
  }
  .bar-search__hint{display:none;}

  .primary-nav{
    position:absolute;
    top:100%;left:0;right:0;
    display:none;
    margin-left:0;
    max-height:calc(100vh - 120px);
    overflow-y:auto;
    background:#0A1220;
    border-top:1px solid var(--grid);
    border-bottom:1px solid var(--grid);
    box-shadow:0 26px 48px rgba(3,7,16,.72);
    z-index:70;
  }
  .primary-nav[data-open]{display:block;}

  .primary-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px;
  }
  .primary-nav__item{display:block;}
  .primary-nav__link{
    display:flex;
    width:100%;
    padding:14px 14px;
    font-size:15px;
    border:0;
    border-radius:0;
    border-bottom:1px solid rgba(34,51,84,.55);
  }
  .primary-nav__index{display:inline-block;font-size:10px;}
  .primary-nav__link[aria-current="page"]{
    border-radius:4px;
    border:1px solid rgba(76,243,225,.5);
  }

  .nav-toggle[aria-expanded="true"]{
    color:var(--cyan);
    border-color:var(--cyan);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){
    transform:translateY(5.5px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){
    opacity:0;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){
    transform:translateY(-5.5px) rotate(-45deg);
  }

  .page-shell{padding:24px 18px 64px;}

  .figure--wide{
    margin-left:0;
    margin-right:0;
  }

  .footer-frame{padding:40px 18px 22px;}
  .footer-cols{grid-template-columns:minmax(0,1fr);gap:22px;}
  .footer-contact{
    grid-template-columns:minmax(0,1fr);
    gap:14px;
    padding:18px;
  }
  .footer-contact__grid{grid-template-columns:minmax(0,1fr);gap:14px;}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:8px;}
}

@media (max-width:560px){
  .section-head__note{margin-left:0;width:100%;}
  .data-anchor{font-size:clamp(34px,12vw,56px);}
  .btn{padding:10px 18px;font-size:13px;}
}

/* ---------- 17. 无障碍动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .bar-status__dot{animation:none;}
}