/* ==========================================================
   /assets/site.css — 竞博电竞主站 · 共享样式
   暗夜竞技场 / 数据仪表盘 / 目录型内容地图
   ========================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ol,ul{margin:0}
ol,ul{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;border-spacing:0}
[hidden]{display:none !important}

/* ---------- 2. Tokens ---------- */
:root{
  --ink:#05070F;
  --hull:#0B1224;
  --panel:#121A30;
  --line:#23304D;
  --text:#E9F1FF;
  --muted:#93A3C2;
  --cyan:#00E5FF;
  --magenta:#FF2D8A;
  --violet:#A855F7;
  --mint:#3DF5A5;
  --gold:#F4C24C;

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

  --maxw:1440px;
  --pad:clamp(20px,4vw,64px);
  --gutter:clamp(16px,2vw,28px);
  --header-h:82px;
  --radius:2px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-panel:inset 0 1px 0 rgba(233,241,255,.03),0 24px 48px -40px rgba(0,0,0,.95);
}

/* ---------- 3. Base / 中文排版 ---------- */
html,body{min-height:100%}
body{
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.72;
  letter-spacing:.005em;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 6% -14%, rgba(0,229,255,.10), transparent 62%),
    radial-gradient(920px 540px at 102% 4%, rgba(168,85,247,.11), transparent 60%),
    radial-gradient(760px 460px at 50% 116%, rgba(255,45,138,.07), transparent 64%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
@media (max-width:640px){ body{font-size:17px} }

h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.14;letter-spacing:-.02em;color:var(--text)}
h1{font-size:clamp(30px,4.6vw,60px)}
h2{font-size:clamp(24px,3vw,40px)}
h3{font-size:clamp(19px,2vw,26px)}
h4{font-size:17px;letter-spacing:0}
p{text-wrap:pretty}
strong,b{font-weight:700}
strong{color:#fff}
.num,time,[data-year]{font-family:var(--font-num);font-variant-numeric:tabular-nums;-webkit-font-feature-settings:"tnum" 1;font-feature-settings:"tnum" 1}
::selection{background:rgba(0,229,255,.28);color:#fff}
:target{scroll-margin-top:calc(var(--header-h) + 24px)}

/* ---------- 4. 可达性 ---------- */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:1px}
.skip-link{
  position:absolute;left:var(--pad);top:-120px;z-index:120;
  padding:10px 18px;background:var(--cyan);color:#04070F;
  font-size:13px;font-weight:700;border-radius:var(--radius);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:10px}

/* ---------- 5. 布局骨架 ---------- */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.container--narrow{max-width:920px}
.container--wide{max-width:1680px}

.section{position:relative;padding-block:clamp(44px,7vw,96px);border-top:1px solid var(--line)}
.section:first-of-type{border-top:0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px 36px;margin-bottom:clamp(22px,3vw,38px)}
.section-num{
  display:block;margin-bottom:6px;
  font-family:var(--font-num);font-size:clamp(40px,7vw,104px);line-height:.8;
  letter-spacing:-.05em;color:#141D33;-webkit-text-stroke:1px var(--line);
}
.section-title{font-family:var(--font-display);font-weight:900;font-size:clamp(22px,3vw,38px);letter-spacing:-.02em}
.section-desc{margin-top:10px;color:var(--muted);font-size:15px;max-width:52em}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-num);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";display:block;width:22px;height:1px;background:var(--cyan)}

.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gutter)}
.grid--6-6 > *{grid-column:span 6}
.grid--7-5 > *:first-child{grid-column:span 7}
.grid--7-5 > *:nth-child(2){grid-column:span 5}
.grid--8-4 > *:first-child{grid-column:span 8}
.grid--8-4 > *:nth-child(2){grid-column:span 4}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 16px;border:1px solid var(--line);border-radius:var(--radius);
  font-size:14px;font-weight:600;line-height:1.4;letter-spacing:.02em;
  color:var(--text);background:rgba(18,26,48,.6);
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.btn:hover,.btn:focus-visible{transform:translateX(4px);border-color:var(--cyan);color:var(--cyan)}
.btn--ghost{border-color:rgba(0,229,255,.55);color:var(--cyan);background:transparent}
.btn--ghost:hover,.btn--ghost:focus-visible{background:rgba(0,229,255,.10);color:var(--cyan)}
.btn--quiet{border-color:var(--line);color:var(--muted);background:transparent}
.btn--quiet:hover,.btn--quiet:focus-visible{color:var(--text);border-color:var(--muted)}
.btn--solid{background:var(--cyan);border-color:var(--cyan);color:#04070F}
.btn--solid:hover,.btn--solid:focus-visible{background:#66F0FF;color:#04070F;border-color:#66F0FF}

/* ---------- 7. 面板 / 卡片 ---------- */
.panel{
  position:relative;padding:clamp(18px,2.4vw,28px);
  background:linear-gradient(180deg,rgba(18,26,48,.92),rgba(11,18,36,.94));
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-panel);
}
.panel::before,.panel::after{content:"";position:absolute;width:10px;height:10px;border:1px solid rgba(0,229,255,.55);pointer-events:none}
.panel::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.panel::after{right:-1px;bottom:-1px;border-left:0;border-top:0}
.panel-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 18px;padding-bottom:14px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.panel-title{font-family:var(--font-display);font-weight:900;font-size:19px;letter-spacing:-.01em}
.panel-meta{font-family:var(--font-num);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

.card{
  position:relative;padding:clamp(16px,2vw,22px);
  background:rgba(18,26,48,.55);border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .2s var(--ease),transform .2s var(--ease),background-color .2s var(--ease);
}
.card:hover{border-color:rgba(0,229,255,.55);background:rgba(18,26,48,.8);transform:translateY(-2px)}
.card-title{font-family:var(--font-display);font-weight:900;font-size:17px;letter-spacing:-.01em;margin-bottom:8px}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px;font-family:var(--font-num);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.card-text{color:var(--muted);font-size:14.5px}

/* ---------- 8. 徽标 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:3px 8px;
  border:1px solid var(--line);border-radius:var(--radius);background:rgba(5,7,15,.5);
  font-family:var(--font-num);font-size:11px;letter-spacing:.1em;color:var(--muted);
}
.badge--cyan{color:var(--cyan);border-color:rgba(0,229,255,.45);background:rgba(0,229,255,.08)}
.badge--magenta{color:var(--magenta);border-color:rgba(255,45,138,.45);background:rgba(255,45,138,.08)}
.badge--violet{color:var(--violet);border-color:rgba(168,85,247,.45);background:rgba(168,85,247,.08)}
.badge--mint{color:var(--mint);border-color:rgba(61,245,165,.45);background:rgba(61,245,165,.08)}
.badge--gold{color:var(--gold);border-color:rgba(244,194,76,.45);background:rgba(244,194,76,.08)}

.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:4px 9px;border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(18,26,48,.5);font-family:var(--font-num);font-size:11px;letter-spacing:.06em;color:var(--muted);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.tag:hover{border-color:var(--cyan);color:var(--cyan)}
.tag--cyan{color:var(--cyan);border-color:rgba(0,229,255,.35)}
.tag--violet{color:var(--violet);border-color:rgba(168,85,247,.35)}
.tag--magenta{color:var(--magenta);border-color:rgba(255,45,138,.35)}
.tag--mint{color:var(--mint);border-color:rgba(61,245,165,.35)}

/* ---------- 9. 键值 / 表格 ---------- */
.kv{display:grid}
.kv-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;align-items:baseline;padding:10px 0;border-bottom:1px solid var(--line)}
.kv-row:last-child{border-bottom:0}
.kv-key{color:var(--muted);font-size:14px}
.kv-val{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--text);font-size:14px}

.data-table{width:100%;font-size:14px}
.data-table caption{caption-side:top;text-align:left;padding-bottom:10px;font-family:var(--font-num);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.data-table th,.data-table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.data-table thead th{background:rgba(18,26,48,.75);font-family:var(--font-num);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.data-table tbody tr{transition:background-color .18s var(--ease)}
.data-table tbody tr:hover{background:rgba(0,229,255,.05)}
.data-table td.is-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;text-align:right}
.is-up{color:var(--mint)}
.is-down{color:var(--magenta)}
.is-flat{color:var(--muted)}

/* ---------- 10. 正文 / 旁注 ---------- */
.prose{max-width:46em;color:var(--text)}
.prose > * + *{margin-top:1em}
.prose h2{margin-top:1.6em;font-size:clamp(22px,2.4vw,30px)}
.prose h3{margin-top:1.4em;font-size:19px}
.prose p,.prose li{color:#D6E0F5}
.prose ul,.prose ol{display:grid;gap:8px}
.prose ul li{position:relative;padding-left:16px}
.prose ul li::before{content:"";position:absolute;left:0;top:.75em;width:7px;height:1px;background:var(--cyan)}
.prose ol{counter-reset:prose;list-style:none}
.prose ol li{position:relative;padding-left:28px;counter-increment:prose}
.prose ol li::before{content:counter(prose,decimal-leading-zero);position:absolute;left:0;top:.1em;font-family:var(--font-num);font-size:12px;color:var(--cyan)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(0,229,255,.4)}
.prose a:hover{border-bottom-color:var(--cyan)}
.prose code{padding:1px 6px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(18,26,48,.9);font-family:var(--font-num);font-size:.92em;color:var(--cyan)}
.prose blockquote{padding-left:16px;border-left:2px solid var(--violet);color:var(--muted)}
.prose hr{margin:2em 0;border:0;border-top:1px solid var(--line)}
.prose figcaption,.prose small{font-size:13px;color:var(--muted)}

.aside-note{
  padding:10px 0 10px 16px;border-left:2px solid var(--cyan);
  background:linear-gradient(90deg,rgba(0,229,255,.06),transparent 72%);
  color:var(--muted);font-size:14px;
}
.divider{height:1px;margin:clamp(24px,4vw,48px) 0;border:0;background:var(--line)}

/* ---------- 11. 面包屑 ---------- */
.breadcrumb{margin-bottom:clamp(16px,2vw,24px)}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-num);font-size:12px;letter-spacing:.04em;color:var(--muted)}
.breadcrumb-list li{display:flex;align-items:center;gap:8px}
.breadcrumb-list li + li::before{content:"/";color:var(--line)}
.breadcrumb-list a{color:var(--muted);transition:color .2s var(--ease)}
.breadcrumb-list a:hover,.breadcrumb-list a:focus-visible{color:var(--cyan)}
.breadcrumb-list [aria-current="page"]{color:var(--text)}

/* ---------- 12. 图片容器（页面阶段放图） ---------- */
.img-frame{
  position:relative;display:block;overflow:hidden;width:100%;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);
  aspect-ratio:16 / 9;
}
.img-frame > img{width:100%;height:100%;object-fit:cover;filter:saturate(.94) contrast(1.04)}
.img-frame--wide{aspect-ratio:21 / 9}
.img-frame--tall{aspect-ratio:4 / 5}
.img-frame--square{aspect-ratio:1 / 1}
.img-frame--slant{clip-path:polygon(0 0,100% 0,100% calc(100% - 42px),calc(100% - 42px) 100%,0 100%)}
.img-ph{
  display:grid;place-items:center;width:100%;height:100%;min-height:140px;padding:18px;
  text-align:center;font-family:var(--font-num);font-size:11px;letter-spacing:.18em;color:var(--muted);
  background-color:var(--panel);
  background-image:repeating-linear-gradient(135deg,rgba(35,48,77,.55) 0 1px,transparent 1px 14px);
}

/* ---------- 13. 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,7,15,.9);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:6px;pointer-events:none;opacity:.55;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 28px);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  width:100%;max-width:var(--maxw);min-height:var(--header-h);
  margin-inline:auto;padding:10px var(--pad);
  transition:padding .24s var(--ease),min-height .24s var(--ease);
}
.brand-block{display:flex;align-items:center;gap:18px;min-width:0}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  display:grid;place-items:center;flex:0 0 auto;width:40px;height:40px;
  font-family:var(--font-display);font-weight:900;font-size:20px;line-height:1;color:var(--cyan);
  border:1px solid rgba(0,229,255,.5);
  background:linear-gradient(160deg,rgba(0,229,255,.16),rgba(168,85,247,.12));
  clip-path:polygon(12% 0,100% 0,100% 88%,88% 100%,0 100%,0 12%);
  transition:width .24s var(--ease),height .24s var(--ease),font-size .24s var(--ease);
}
.brand-text{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand-name{font-family:var(--font-display);font-weight:900;font-size:17px;letter-spacing:-.01em;color:var(--text);white-space:nowrap;transition:color .2s var(--ease)}
.brand-sub{font-family:var(--font-num);font-size:11px;letter-spacing:.16em;color:var(--muted);white-space:nowrap}
.brand:hover .brand-name,.brand:focus-visible .brand-name{color:var(--cyan)}
.brand-meta{display:flex;align-items:center;gap:14px;padding-left:18px;border-left:1px solid var(--line);font-family:var(--font-num);font-size:11px;letter-spacing:.08em;color:var(--muted)}
.brand-meta-item{white-space:nowrap}
.brand-meta-item b{color:var(--cyan);font-weight:600}

.nav-toggle{
  display:none;align-items:center;gap:8px;padding:8px 12px;
  border:1px solid var(--line);border-radius:var(--radius);color:var(--muted);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle-bar{display:block;width:16px;height:1px;background:currentColor;transition:transform .22s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child{transform:translateY(4.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){transform:translateY(-4.5px) rotate(-45deg)}
.nav-toggle-label{font-size:12px;letter-spacing:.1em;font-family:var(--font-num)}

.site-nav{display:flex;align-items:center;gap:24px}
.nav-index{display:flex;align-items:stretch}
.nav-index li{display:flex}
.nav-link{
  position:relative;display:flex;flex-direction:column;gap:3px;
  padding:9px 16px;border-left:1px solid var(--line);min-width:0;
  transition:background-color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--cyan);
  transform:scaleX(0);transform-origin:left center;transition:transform .22s var(--ease);
}
.nav-num{font-size:10px;letter-spacing:.16em;color:var(--muted);opacity:.85;transition:color .2s var(--ease),opacity .2s var(--ease)}
.nav-label{font-family:var(--font-display);font-weight:700;font-size:14px;color:var(--text);white-space:nowrap;transition:color .2s var(--ease),transform .2s var(--ease)}
.nav-link:hover,.nav-link:focus-visible{background:rgba(0,229,255,.05)}
.nav-link:hover .nav-label,.nav-link:focus-visible .nav-label{color:var(--cyan);transform:translateX(4px)}
.nav-link:hover .nav-num,.nav-link:focus-visible .nav-num{color:var(--cyan);opacity:1}
.nav-link:hover::after,.nav-link:focus-visible::after,.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-link[aria-current="page"] .nav-label{color:var(--cyan)}
.nav-link[aria-current="page"] .nav-num{color:var(--cyan);opacity:1}

.nav-utility{display:flex;align-items:center;gap:10px;padding-left:22px;border-left:1px solid var(--line)}

.scroll-rail{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(35,48,77,.6);pointer-events:none}
.scroll-rail-bar{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--cyan),var(--violet));transition:width .12s linear}

.site-header[data-scrolled] .header-inner{padding-block:6px;min-height:64px}
.site-header[data-scrolled] .brand-meta{display:none}
.site-header[data-scrolled] .brand-mark{width:34px;height:34px;font-size:17px}
.site-header[data-scrolled] .nav-link{padding-block:7px}

/* ---------- 14. 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,8vw,110px);border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,36,.92),rgba(5,7,15,1) 62%);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:6px;pointer-events:none;opacity:.6;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 28px);
}
.footer-inner{width:100%;max-width:var(--maxw);margin-inline:auto;padding:clamp(36px,5vw,64px) var(--pad) 26px}
.footer-top{
  display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);
  gap:clamp(24px,4vw,60px);padding-bottom:clamp(26px,3vw,40px);border-bottom:1px solid var(--line);
}
.footer-brand{min-width:0}
.footer-note{margin:16px 0 18px;max-width:32em;color:var(--muted);font-size:14px}
.footer-note--small{margin:12px 0 0;font-size:12.5px;line-height:1.7}
.footer-login{margin-top:2px}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(20px,3vw,36px)}
.footer-col{min-width:0}
.footer-title{
  padding-bottom:8px;margin-bottom:14px;border-bottom:1px solid var(--line);
  font-family:var(--font-num);font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
}
.footer-list{display:grid;gap:9px}
.footer-list a{
  display:inline-flex;align-items:baseline;gap:8px;font-size:14px;color:var(--text);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-list a:hover,.footer-list a:focus-visible{color:var(--cyan);transform:translateX(4px)}
.footer-list--legal a{color:var(--muted)}
.footer-list--legal a:hover,.footer-list--legal a:focus-visible{color:var(--cyan)}
.footer-contact{display:grid;gap:10px}
.footer-contact-item{display:grid;gap:2px}
.footer-contact-label{font-family:var(--font-num);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);opacity:.8}
.footer-contact-val{font-size:14px;color:var(--text);word-break:break-word}
.footer-contact-note{
  margin-top:14px;padding-left:12px;border-left:1px solid var(--line);
  font-size:12.5px;line-height:1.7;color:var(--muted);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  padding-top:22px;font-family:var(--font-num);font-size:12.5px;letter-spacing:.02em;color:var(--muted);
}
.footer-copy{margin:0}
.footer-meta{margin:0;color:var(--muted)}

/* ---------- 15. 显现（JS 启用） ---------- */
.reveal-ready [data-reveal]{opacity:0;transform:translateY(10px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
.reveal-ready [data-reveal][data-visible]{opacity:1;transform:none}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1240px){
  .nav-link{padding-inline:12px}
  .nav-utility{padding-left:16px}
}
@media (max-width:1180px){
  .brand-meta{display:none}
}
@media (max-width:1080px){
  :root{--header-h:68px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;
    max-height:calc(100vh - var(--header-h));overflow-y:auto;
    padding:8px var(--pad) 24px;
    background:linear-gradient(180deg,rgba(11,18,36,.98),rgba(5,7,15,.99));
    border-bottom:1px solid var(--line);
    box-shadow:0 34px 60px -42px #000;
  }
  .site-nav[data-open]{display:flex}
  .nav-index{flex-direction:column;width:100%}
  .nav-index li{display:block;border-bottom:1px solid var(--line)}
  .nav-link{flex-direction:row;align-items:baseline;gap:14px;padding:14px 2px;border-left:0}
  .nav-link::after{left:0;right:0;bottom:-1px}
  .nav-link:hover .nav-label,.nav-link:focus-visible .nav-label{transform:none}
  .nav-num{font-size:12px}
  .nav-label{font-size:17px}
  .nav-utility{flex-direction:column;align-items:stretch;gap:10px;margin-top:18px;padding:18px 0 0;border-left:0;border-top:1px solid var(--line)}
  .nav-utility .btn{justify-content:center}
  .site-header[data-scrolled] .brand-meta{display:none}
}
@media (max-width:1000px){
  .grid--6-6 > *,
  .grid--7-5 > *:first-child,
  .grid--7-5 > *:nth-child(2),
  .grid--8-4 > *:first-child,
  .grid--8-4 > *:nth-child(2){grid-column:span 12}
}
@media (max-width:900px){
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .header-inner{gap:12px}
  .brand-name{font-size:16px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ---------- 17. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
  }
  .reveal-ready [data-reveal]{opacity:1 !important;transform:none !important}
  .btn:hover,.btn:focus-visible{transform:none}
  .footer-list a:hover,.footer-list a:focus-visible{transform:none}
  .nav-link:hover .nav-label,.nav-link:focus-visible .nav-label{transform:none}
  .card:hover{transform:none}
}