/* =========================================================
   星空体育官网 · 共享样式表 /assets/site.css
   深空蓝黑 / 星轨银 / 数据荧光青 / 琥珀金
   ========================================================= */

/* ---------- 1. RESET ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
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%}

/* ---------- 2. 变量 ---------- */
:root{
  --ink-void:#060B18;
  --ink-deep:#0B1220;
  --star-silver:#C7D2E4;
  --pulse-cyan:#17EAD9;
  --amber:#F5B93B;
  --paper:#F4EFE4;
  --steel:#6E7B91;
  --alert-red:#FF5A6E;
  --nebula:#5B4B8A;
  --white:#FFFFFF;

  --line:rgba(199,210,228,.13);
  --line-strong:rgba(199,210,228,.28);
  --cyan-soft:rgba(23,234,217,.10);
  --amber-soft:rgba(245,185,59,.12);

  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --font-narrow:"Archivo Narrow","Arial Narrow","Helvetica Neue",system-ui,"PingFang SC","Microsoft YaHei",sans-serif;

  --max:1280px;
  --max-wide:1480px;
  --gutter:clamp(18px,4vw,56px);
  --header-h:70px;
  --radius:4px;
}
@media (max-width:960px){:root{--header-h:62px}}

/* ---------- 3. 基础排版 ---------- */
body{
  background-color:var(--ink-void);
  color:var(--star-silver);
  font-family:var(--font-sans);
  font-size:clamp(15px,.32vw + 14px,16.5px);
  line-height:1.78;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(circle at 10% 6%,rgba(23,234,217,.09),transparent 42%),
    radial-gradient(circle at 88% 0%,rgba(91,75,138,.22),transparent 46%),
    radial-gradient(circle at 72% 94%,rgba(23,234,217,.05),transparent 42%),
    linear-gradient(180deg,#060B18 0%,#070D1C 48%,#05090F 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(199,210,228,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(199,210,228,.05) 1px,transparent 1px);
  background-size:84px 84px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 28%,#000 26%,transparent 76%);
  mask-image:radial-gradient(ellipse at 50% 28%,#000 26%,transparent 76%);
}
h1,h2,h3,h4{color:var(--white);font-weight:800;line-height:1.22;letter-spacing:.012em}
h1{font-size:clamp(1.9rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.5rem,3.2vw,2.4rem)}
h3{font-size:clamp(1.08rem,1.6vw,1.34rem)}
strong{color:var(--white);font-weight:700}
::selection{background:rgba(23,234,217,.28);color:var(--white)}

/* ---------- 4. 无障碍 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  padding:10px 16px;border-radius:3px;
  background:var(--pulse-cyan);color:#04121A;font-weight:700;font-size:.86rem;
  transform:translateY(-180%);
  transition:transform .2s ease;
}
.skip-link:focus{transform:translateY(0)}
:focus-visible{outline:2px solid var(--pulse-cyan);outline-offset:2px;border-radius:2px}
html.nav-open,html.nav-open body{overflow:hidden}

/* ---------- 5. 布局容器与栅格 ---------- */
.shell{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.shell-wide{max-width:var(--max-wide)}
.section{padding-block:clamp(48px,7vw,104px)}
.section-tight{padding-block:clamp(26px,3.6vw,48px)}
.section-head{display:grid;gap:14px;max-width:66ch;margin-bottom:clamp(24px,3.4vw,46px)}
.section-head-wide{max-width:none}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:.68rem;font-weight:600;
  letter-spacing:.28em;text-transform:uppercase;color:var(--pulse-cyan);
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--pulse-cyan);opacity:.85}
.section-title{font-family:var(--font-narrow);font-weight:800}
.lede{color:var(--star-silver);opacity:.86;font-size:1.02rem;max-width:64ch}
.grid{display:grid;gap:clamp(16px,2.4vw,30px)}
.split-7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.split-8-4{grid-template-columns:minmax(0,8fr) minmax(0,4fr)}
.split-9-3{grid-template-columns:minmax(0,9fr) minmax(0,3fr)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-auto{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.stack{display:grid;gap:clamp(14px,2vw,22px)}

/* ---------- 6. 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,11,24,.86);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
}
.header-inner{
  width:100%;max-width:var(--max-wide);margin-inline:auto;
  padding-inline:var(--gutter);
  min-height:var(--header-h);
  display:flex;align-items:center;gap:clamp(12px,2.4vw,34px);
}
.brand{flex:0 0 auto;display:flex;align-items:center}
.brand-link{display:flex;align-items:center;gap:12px;padding-block:10px}
.brand-mark{
  position:relative;flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:grid;place-items:center;
  background:radial-gradient(circle at 50% 50%,rgba(23,234,217,.14),transparent 70%);
}
.brand-mark::before{
  content:"";position:absolute;width:1px;height:100%;top:0;left:50%;
  background:linear-gradient(180deg,transparent,rgba(199,210,228,.55),transparent);
}
.brand-mark::after{
  content:"";position:absolute;height:1px;width:100%;left:0;top:50%;
  background:linear-gradient(90deg,transparent,rgba(199,210,228,.55),transparent);
}
.brand-mark-dot{
  position:relative;z-index:1;width:7px;height:7px;border-radius:50%;
  background:var(--pulse-cyan);box-shadow:0 0 12px rgba(23,234,217,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-size:1rem;font-weight:800;color:var(--white);letter-spacing:.08em}
.brand-tag{
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--steel);
}
.header-rail{flex:1 1 auto;display:flex;justify-content:flex-end;align-items:center;min-width:0}
.header-meta{
  display:inline-flex;align-items:center;gap:9px;white-space:nowrap;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--steel);
}
.header-meta-dot{
  width:6px;height:6px;border-radius:50%;background:var(--amber);
  box-shadow:0 0 10px rgba(245,185,59,.85);
  animation:pulseDot 2.6s ease-in-out infinite;
}
@keyframes pulseDot{0%,100%{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}

.site-nav{flex:0 0 auto}
.nav-list{display:flex;align-items:center;gap:clamp(2px,.9vw,10px)}
.nav-item{display:block}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 12px;border:1px solid transparent;border-radius:3px;
  font-size:.9rem;font-weight:500;color:var(--star-silver);
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:1px;
  background:var(--pulse-cyan);transform:scaleX(0);transform-origin:left center;
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
}
.nav-link:hover{color:var(--white)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{
  color:var(--white);background:var(--cyan-soft);
  border-color:rgba(23,234,217,.36);
}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--amber)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:10px 12px;border:1px solid var(--line-strong);border-radius:3px;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--star-silver);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{color:var(--white);border-color:rgba(23,234,217,.45)}
.nav-toggle-bars{display:grid;gap:4px;width:18px}
.nav-toggle-bars span{display:block;height:1px;background:currentColor;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"]{color:var(--white);border-color:rgba(23,234,217,.55);background:var(--cyan-soft)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(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(-5px) rotate(-45deg)}
.nav-toggle-label{line-height:1}

.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.scroll-progress-bar{
  display:block;height:100%;width:100%;
  transform:scaleX(var(--scroll-progress,0));transform-origin:left center;
  background:linear-gradient(90deg,var(--pulse-cyan),rgba(23,234,217,.5) 55%,var(--amber));
  transition:transform .12s linear;
}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(56px,9vw,120px);
  background:var(--ink-deep);
  border-top:1px solid var(--line-strong);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,234,217,.6),rgba(245,185,59,.45),transparent);
}
.footer-grid{
  width:100%;max-width:var(--max-wide);margin-inline:auto;
  padding:clamp(40px,6vw,74px) var(--gutter) clamp(28px,4vw,46px);
  display:grid;grid-template-columns:1.5fr .8fr .8fr 1.15fr;
  gap:clamp(24px,4vw,58px);
}
.footer-brand{display:grid;gap:10px;align-content:start}
.footer-logo{font-size:1.16rem;font-weight:800;color:var(--white);letter-spacing:.08em}
.footer-line{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--pulse-cyan);
}
.footer-note{font-size:.88rem;color:var(--steel);max-width:38ch}
.footer-col{display:grid;gap:14px;align-content:start}
.footer-title{
  font-family:var(--font-mono);font-size:.68rem;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--star-silver);
  padding-bottom:10px;border-bottom:1px solid var(--line);
}
.footer-list{display:grid;gap:9px;font-size:.88rem}
.footer-list a{color:var(--steel);transition:color .2s ease,padding-left .2s ease}
.footer-list a:hover{color:var(--pulse-cyan);padding-left:4px}
.footer-list-plain{color:var(--steel);gap:10px}
.footer-list-plain li{display:grid;gap:2px;line-height:1.6}
.footer-label{
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.2em;
  text-transform:uppercase;color:rgba(110,123,145,.85);
}
.footer-contact{min-width:0}
.footer-base{
  width:100%;max-width:var(--max-wide);margin-inline:auto;
  padding:clamp(16px,2.4vw,22px) var(--gutter);
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 26px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.05em;color:var(--steel);
}
.footer-copy{margin:0}
.footer-meta{margin:0}
.footer-meta a{color:var(--star-silver);border-bottom:1px solid var(--line-strong)}
.footer-meta a:hover{color:var(--pulse-cyan);border-color:rgba(23,234,217,.5)}

/* ---------- 8. 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border:1px solid var(--line-strong);border-radius:3px;
  font-size:.9rem;font-weight:600;letter-spacing:.03em;color:var(--star-silver);
  background:rgba(199,210,228,.04);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn:hover{color:var(--white);border-color:rgba(23,234,217,.5);background:var(--cyan-soft);transform:translateY(-1px)}
.btn-primary{background:var(--pulse-cyan);border-color:var(--pulse-cyan);color:#04121A;font-weight:700}
.btn-primary:hover{background:#42F4E6;border-color:#42F4E6;color:#04121A}
.btn-amber{border-color:rgba(245,185,59,.55);color:var(--amber);background:var(--amber-soft)}
.btn-amber:hover{border-color:var(--amber);color:#FFD37A;background:rgba(245,185,59,.18)}
.btn-sm{padding:8px 14px;font-size:.82rem}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{padding-block:15px;border-bottom:1px solid var(--line)}
.breadcrumb ol{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--steel);
}
.breadcrumb li{display:inline-flex;align-items:center}
.breadcrumb li+li::before{content:"/";margin-right:10px;color:rgba(110,123,145,.55)}
.breadcrumb a{color:var(--steel);transition:color .2s ease}
.breadcrumb a:hover{color:var(--pulse-cyan)}
.breadcrumb [aria-current="page"]{color:var(--star-silver)}

/* ---------- 10. 面板与数据组件 ---------- */
.panel{
  position:relative;border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(18px,2.4vw,28px);
  background:linear-gradient(180deg,rgba(11,18,32,.96),rgba(11,18,32,.76));
  box-shadow:0 1px 0 rgba(255,255,255,.02),0 22px 44px -30px rgba(0,0,0,.95);
}
.panel-accent{border-color:rgba(23,234,217,.34)}
.panel-accent::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,transparent,var(--pulse-cyan),transparent);
}
.panel-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  padding-bottom:12px;margin-bottom:16px;border-bottom:1px solid var(--line);
}
.panel-index{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--steel);
}
.panel-title{font-size:1.02rem;font-weight:700;color:var(--white)}

.stat{display:flex;flex-direction:column;gap:6px}
.stat-value{
  font-family:var(--font-mono);font-size:clamp(1.5rem,3vw,2.25rem);
  font-weight:700;line-height:1;color:var(--white);letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
}
.stat-value-cyan{color:var(--pulse-cyan)}
.stat-value-amber{color:var(--amber)}
.stat-label{font-size:.78rem;letter-spacing:.06em;color:var(--steel)}
.stat-delta{font-family:var(--font-mono);font-size:.72rem;color:var(--pulse-cyan)}
.stat-delta-down{color:var(--alert-red)}

.meter-row{display:flex;align-items:center;gap:12px}
.meter-row .meter{flex:1 1 auto}
.meter{height:6px;border-radius:999px;background:rgba(199,210,228,.1);overflow:hidden}
.meter-bar{
  display:block;height:100%;width:var(--value,0%);
  background:linear-gradient(90deg,rgba(23,234,217,.6),var(--pulse-cyan));
  transition:width .9s cubic-bezier(.2,.7,.3,1);
}
.meter-amber .meter-bar{background:linear-gradient(90deg,rgba(245,185,59,.55),var(--amber))}
.meter-alert .meter-bar{background:linear-gradient(90deg,rgba(255,90,110,.55),var(--alert-red))}

/* ---------- 11. 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border:1px solid var(--line-strong);border-radius:999px;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--star-silver);white-space:nowrap;
}
.tag-cyan{border-color:rgba(23,234,217,.45);color:var(--pulse-cyan);background:rgba(23,234,217,.08)}
.tag-amber{border-color:rgba(245,185,59,.5);color:var(--amber);background:var(--amber-soft)}
.tag-alert{border-color:rgba(255,90,110,.5);color:var(--alert-red);background:rgba(255,90,110,.1)}
.tag-paper{background:var(--paper);border-color:transparent;color:#141C2B}

/* ---------- 12. 时间线 ---------- */
.timeline{position:relative;display:grid;gap:clamp(18px,2.6vw,32px);padding-left:28px}
.timeline::before{
  content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(23,234,217,.65),rgba(199,210,228,.16) 42%,rgba(199,210,228,.05));
}
.timeline-item{position:relative}
.timeline-marker{
  position:absolute;left:-28px;top:7px;width:11px;height:11px;border-radius:50%;
  border:1px solid var(--line-strong);background:var(--ink-void);
  transition:border-color .3s ease,background .3s ease,box-shadow .3s ease;
}
.timeline-item[data-active="true"] .timeline-marker{
  border-color:var(--pulse-cyan);background:var(--pulse-cyan);
  box-shadow:0 0 0 4px rgba(23,234,217,.14);
}
.timeline-meta{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--steel);
}
.timeline-title{margin-top:5px;font-size:1.06rem;font-weight:700;color:var(--white)}
.timeline-body{margin-top:8px;max-width:64ch;color:var(--star-silver);opacity:.86;font-size:.94rem}

/* ---------- 13. 折叠与筛选 ---------- */
.disclosure{
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(11,18,32,.72);overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.disclosure+.disclosure{margin-top:10px}
.disclosure>summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:16px 18px;font-weight:600;color:var(--star-silver);
  transition:color .2s ease,background .2s ease;
}
.disclosure>summary::-webkit-details-marker{display:none}
.disclosure>summary::after{
  content:"＋";margin-left:auto;
  font-family:var(--font-mono);color:var(--pulse-cyan);
}
.disclosure[open]>summary::after{content:"－"}
.disclosure>summary:hover{color:var(--white);background:rgba(23,234,217,.05)}
.disclosure[open]{border-color:rgba(23,234,217,.34);background:rgba(11,18,32,.92)}
.disclosure-body{
  padding:14px 18px 18px;border-top:1px solid var(--line);
  color:var(--star-silver);opacity:.9;font-size:.94rem;
}
.filter-bar{display:flex;flex-wrap:wrap;gap:8px}
.filter-chip{
  padding:8px 14px;border:1px solid var(--line-strong);border-radius:999px;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--steel);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.filter-chip:hover{color:var(--star-silver);border-color:rgba(199,210,228,.42)}
.filter-chip[aria-pressed="true"]{color:#04121A;background:var(--pulse-cyan);border-color:var(--pulse-cyan)}

/* ---------- 14. 正文与纸面阅读区 ---------- */
.prose{max-width:70ch;font-size:1rem}
.prose p+p{margin-top:1em}
.prose a{color:var(--pulse-cyan);border-bottom:1px solid rgba(23,234,217,.35)}
.prose h2,.prose h3{margin-top:1.7em;margin-bottom:.55em}
.prose ul,.prose ol{margin-top:1em;display:grid;gap:.5em}
.prose ul li{position:relative;padding-left:1.15em}
.prose ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:1px;background:var(--pulse-cyan)}
.prose-paper{
  background:var(--paper);color:#222A38;border-radius:var(--radius);
  padding:clamp(24px,4vw,52px);
}
.prose-paper h2,.prose-paper h3{color:#0B1220}
.prose-paper a{color:#0A6E68;border-bottom:1px solid rgba(10,110,104,.4)}
.prose-paper .eyebrow{color:#0A6E68}
.prose-paper .eyebrow::before{background:#0A6E68}
.prose-paper .lede{color:#3A4457;opacity:1}

/* ---------- 15. 图片容器 ---------- */
.media-frame{
  position:relative;overflow:hidden;border:1px solid var(--line);
  border-radius:var(--radius);
  background:
    radial-gradient(circle at 28% 18%,rgba(23,234,217,.16),transparent 55%),
    radial-gradient(circle at 78% 74%,rgba(91,75,138,.32),transparent 62%),
    linear-gradient(160deg,#0B1220,#070C1A);
}
.media-frame img,.media-frame video{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 60px rgba(6,11,24,.6);
}
.media-16x9{aspect-ratio:16/9}
.media-4x3{aspect-ratio:4/3}
.media-3x2{aspect-ratio:3/2}
.media-1x1{aspect-ratio:1/1}
.media-badge{
  position:absolute;left:12px;bottom:12px;z-index:2;
  padding:5px 11px;border-radius:999px;
  background:rgba(6,11,24,.78);border:1px solid rgba(23,234,217,.4);
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--pulse-cyan);
}
.media-frame figcaption{
  position:absolute;right:12px;top:12px;z-index:2;
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.16em;
  text-transform:uppercase;color:rgba(199,210,228,.7);
}

/* ---------- 16. 动效 ---------- */
html.js-ready [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1);
}
html.js-ready [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 17. 响应式 ---------- */
@media (max-width:1180px){
  .header-meta{display:none}
  .footer-grid{grid-template-columns:1.4fr .8fr .8fr;gap:clamp(22px,3.4vw,40px)}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .header-rail{display:none}
  .header-inner{gap:12px;justify-content:space-between}
  .site-nav{
    position:fixed;top:var(--header-h);left:0;right:0;z-index:79;
    background:rgba(6,11,24,.98);
    border-bottom:1px solid var(--line);
    padding:10px var(--gutter) 24px;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s linear;
  }
  .site-nav[data-open="true"]{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{
    display:block;padding:15px 12px;border-radius:0;font-size:1rem;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{
    background:rgba(23,234,217,.08);border-color:transparent;
    border-left:2px solid var(--amber);color:var(--white);
  }
  .split-7-5,.split-8-4,.split-9-3{grid-template-columns:minmax(0,1fr)}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:640px){
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);padding-top:36px}
  .footer-base{flex-direction:column;align-items:flex-start}
  .brand-tag{display:none}
  .section{padding-block:46px}
}

/* ---------- 18. 降低动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.js-ready [data-reveal]{opacity:1;transform:none}
  .scroll-progress-bar{transition:none}
}