/* ==========================================================================
   忆博电竞 · 共享样式表 /assets/site.css
   红蓝阵营数据站：底色近黑深灰蓝，绯红与深海蓝分区对抗
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root{
  --void:#0A0E16;
  --panel:#121A28;
  --edge:#26324A;
  --red:#E0253C;
  --orange:#FF6A2B;
  --blue:#1B45C8;
  --cyan:#22E0D2;
  --ink:#E9EEF7;
  --muted:#8A99B3;
  --gold:#F0C24B;

  --shell:1240px;
  --gutter:clamp(18px,4vw,48px);
  --r-sm:8px;
  --r-md:16px;
  --r-lg:28px;
  --gap:clamp(16px,2.4vw,28px);
  --t:180ms cubic-bezier(.4,.1,.2,1);

  --font-display:"Helvetica Neue Condensed","Arial Narrow","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block;height:auto}
button{font:inherit;color:inherit}
a{color:inherit}
[hidden]{display:none !important}

/* ---------- 3. 中文排版与页面底色 ---------- */
body{
  min-height:100vh;
  background-color:var(--void);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(58% 44% at 88% -6%, rgba(27,69,200,.30), rgba(27,69,200,0) 72%),
    radial-gradient(46% 40% at -4% 4%, rgba(224,37,60,.22), rgba(224,37,60,0) 70%),
    radial-gradient(60% 40% at 50% 108%, rgba(34,224,210,.10), rgba(34,224,210,0) 72%),
    linear-gradient(rgba(38,50,74,.42) 1px, rgba(38,50,74,0) 1px),
    linear-gradient(90deg, rgba(38,50,74,.32) 1px, rgba(38,50,74,0) 1px);
  background-size:auto,auto,auto,100% 96px,96px 100%;
  background-attachment:fixed;
}
body::selection{background:var(--red);color:#fff}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.16;
  letter-spacing:.005em;
  font-stretch:condensed;
}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
strong{color:#fff;font-weight:700}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- 4. 布局容器 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(40px,7vw,88px)}
.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.grid--split-alt{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}
.divider{height:1px;border:0;background:linear-gradient(90deg,var(--edge),rgba(38,50,74,0));margin-block:clamp(24px,4vw,48px)}

/* ---------- 5. 文本组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.22em;color:var(--muted);
  font-family:var(--font-mono);
}
.eyebrow::before{content:"";width:30px;height:2px;background:linear-gradient(90deg,var(--red),var(--blue))}
.display{
  font-size:clamp(46px,9vw,96px);
  line-height:.95;
  letter-spacing:-.015em;
  margin:0;
}
.title-lg{font-size:clamp(30px,4.6vw,40px);margin:0}
.title-md{font-size:clamp(22px,3vw,32px);margin:0}
.lede{font-size:clamp(16px,1.7vw,19px);color:#C6D3E6;line-height:1.8;max-width:62ch}
.prose{max-width:68ch;font-size:17px}
.prose h2{font-size:26px;margin:1.6em 0 .55em}
.prose h3{font-size:20px;margin:1.4em 0 .45em}
.prose ul{list-style:none;margin:0 0 1.1em;display:grid;gap:8px}
.prose li{padding-left:20px;position:relative}
.prose li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:2px;background:var(--cyan)}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose code{font-family:var(--font-mono);font-size:.92em;background:rgba(18,26,40,.9);border:1px solid var(--edge);border-radius:var(--r-sm);padding:2px 6px}
.muted{color:var(--muted)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.text-red{color:var(--red)}
.text-blue{color:var(--cyan)}
.text-cyan{color:var(--cyan)}
.text-gold{color:var(--gold)}

/* ---------- 6. 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);list-style:none}
.breadcrumb__link{color:var(--muted);text-decoration:none;transition:color var(--t)}
.breadcrumb__link:hover{color:var(--cyan)}
.breadcrumb__sep{color:var(--edge);font-family:var(--font-mono)}

/* ---------- 7. 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;border:1px solid var(--edge);
  background:var(--panel);color:var(--ink);
  font-family:var(--font-body);font-size:15px;font-weight:600;line-height:1;
  letter-spacing:.03em;text-decoration:none;cursor:pointer;
  transition:transform var(--t),border-color var(--t),background-color var(--t),color var(--t),box-shadow var(--t);
}
.btn:hover{transform:translate(4px,-4px);border-color:var(--cyan);box-shadow:0 10px 24px rgba(0,0,0,.45)}
.btn--cta{
  border-color:transparent;color:#fff;
  background:linear-gradient(118deg,var(--red) 0%,var(--orange) 100%);
  box-shadow:0 8px 22px rgba(224,37,60,.28);
}
.btn--cta:hover{box-shadow:0 12px 28px rgba(255,106,43,.36)}
.btn--blue{
  border-color:rgba(34,224,210,.45);color:#EAFBF9;
  background:linear-gradient(118deg,var(--blue),rgba(34,224,210,.55));
}
.btn--ghost{background:rgba(10,14,22,.6)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---------- 8. 头部 ---------- */
.skip-link{
  position:absolute;left:16px;top:-72px;z-index:200;
  padding:12px 20px;border-radius:0 0 var(--r-md) var(--r-md);
  background:var(--cyan);color:#062028;
  font-size:14px;font-weight:700;text-decoration:none;
  transition:top var(--t);
}
.skip-link:focus{top:0}

.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:120;
  background:rgba(38,50,74,.55);pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--red),var(--orange) 30%,var(--cyan) 70%,var(--blue));
  transition:transform 120ms linear;
}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,14,22,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--edge);
}

.hdr-rail{
  border-bottom:1px solid rgba(38,50,74,.75);
  background-image:
    linear-gradient(104deg, rgba(224,37,60,.22) 0 17%, rgba(224,37,60,0) 17.4%),
    linear-gradient(256deg, rgba(27,69,200,.30) 0 21%, rgba(27,69,200,0) 21.4%);
}
.hdr-rail__inner{
  display:flex;align-items:center;gap:clamp(14px,3vw,40px);
  min-height:66px;padding-block:10px;
}

.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:none}
.brand__mark{
  display:grid;grid-template-columns:1fr 1fr;
  width:40px;height:40px;border-radius:12px;overflow:hidden;
  transform:rotate(-6deg);
  box-shadow:0 6px 18px rgba(0,0,0,.5);
  transition:transform var(--t);
}
.brand:hover .brand__mark{transform:rotate(-6deg) translate(3px,-3px)}
.brand__half{display:block}
.brand__half--red{background:linear-gradient(150deg,var(--orange),var(--red));clip-path:polygon(0 0,100% 10%,100% 100%,0 90%)}
.brand__half--blue{background:linear-gradient(150deg,var(--cyan),var(--blue));clip-path:polygon(0 10%,100% 0,100% 90%,0 100%)}
.brand__text{display:flex;flex-direction:column;line-height:1.16}
.brand__name{font-family:var(--font-display);font-size:19px;font-weight:800;letter-spacing:.08em;color:var(--ink)}
.brand__line{font-size:12px;letter-spacing:.16em;color:var(--muted)}

.hdr-tagline{
  flex:1;min-width:0;font-size:13px;color:var(--muted);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.hdr-coord{
  display:flex;align-items:stretch;flex:none;
  border:1px solid var(--edge);border-radius:999px;overflow:hidden;
  background:rgba(18,26,40,.85);
}
.hdr-coord__item{display:flex;align-items:baseline;gap:6px;padding:6px 13px;border-left:1px solid var(--edge)}
.hdr-coord__item:first-child{border-left:0}
.hdr-coord__key{font-size:11px;letter-spacing:.18em;color:var(--muted)}
.hdr-coord__val{font-family:var(--font-mono);font-size:12px;font-variant-numeric:tabular-nums;color:var(--ink)}
.hdr-coord__item:nth-child(1) .hdr-coord__val{color:var(--orange)}
.hdr-coord__item:nth-child(3) .hdr-coord__val{color:var(--cyan)}

.hdr-nav{
  background:linear-gradient(90deg,rgba(18,26,40,.95),rgba(10,14,22,.7) 55%,rgba(18,26,40,.95));
}
.hdr-nav__inner{display:flex;align-items:stretch;min-height:58px}

.nav{display:flex;flex:1;min-width:0}
.nav__list{display:flex;align-items:stretch;width:100%}
.nav__item{display:flex;align-items:stretch}
.nav__link{
  position:relative;display:inline-flex;align-items:center;
  padding:0 clamp(10px,1.6vw,22px);
  color:var(--muted);text-decoration:none;
  font-size:15px;font-weight:600;letter-spacing:.05em;
  border-left:1px solid rgba(38,50,74,.5);
  transition:color var(--t),background-color var(--t);
}
.nav__item:first-child .nav__link{border-left:0}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  transform:scaleX(0);transform-origin:left;
  background:linear-gradient(90deg,var(--red),var(--orange) 42%,var(--cyan) 58%,var(--blue));
  transition:transform var(--t);
}
.nav__link:hover{color:var(--ink);background:rgba(34,224,210,.06)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{
  color:#fff;
  background:linear-gradient(180deg,rgba(224,37,60,.22),rgba(27,69,200,.22));
}
.nav__link[aria-current="page"]::after{transform:scaleX(1)}

.hdr-nav__inner > .btn{align-self:center;margin-left:auto;margin-right:0;padding:11px 20px;font-size:14px}
.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:11px 15px;border-radius:999px;border:1px solid var(--edge);
  background:var(--panel);color:var(--ink);
  font-size:14px;font-weight:600;line-height:1;cursor:pointer;
  transition:border-color var(--t),transform var(--t);
}
.nav-toggle:hover{border-color:var(--cyan);transform:translate(3px,-3px)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px}
.nav-toggle__bars i:nth-child(1){width:16px;background:var(--orange)}
.nav-toggle__bars i:nth-child(2){width:11px;background:var(--red)}
.nav-toggle__bars i:nth-child(3){width:16px;background:var(--cyan)}
.nav-toggle__label{letter-spacing:.1em}

/* ---------- 9. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  border-top:1px solid var(--edge);
  background:
    radial-gradient(80% 120% at 10% 0%, rgba(27,69,200,.24), rgba(27,69,200,0) 62%),
    radial-gradient(70% 120% at 94% 4%, rgba(224,37,60,.18), rgba(224,37,60,0) 60%),
    linear-gradient(180deg,#0C1220,#070A11);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:linear-gradient(90deg,var(--red),var(--orange) 24%,rgba(10,14,22,0) 46%,rgba(10,14,22,0) 54%,var(--cyan) 76%,var(--blue));
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(42px,6vw,78px);
}
.foot-brand__name{
  font-family:var(--font-display);font-size:clamp(28px,4vw,42px);font-weight:800;
  line-height:1.05;letter-spacing:.06em;
  background:linear-gradient(102deg,#FFFFFF 8%,var(--orange) 48%,var(--cyan) 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.foot-brand__line{margin-top:8px;font-size:13px;letter-spacing:.16em;color:var(--muted)}
.foot-brand__note{margin-top:14px;font-size:14px;color:#CFDAEA;max-width:32ch}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.foot-col__title{
  font-size:12px;letter-spacing:.2em;color:var(--muted);font-weight:700;
  padding-bottom:10px;margin:0 0 16px;border-bottom:1px solid var(--edge);
}
.foot-col__title--tight{margin-top:28px}
.foot-list{display:grid;gap:11px}
.foot-link{
  position:relative;display:inline-block;padding-left:16px;
  color:var(--ink);opacity:.84;font-size:15px;text-decoration:none;
  transition:color var(--t),opacity var(--t),transform var(--t);
}
.foot-link::before{
  content:"";position:absolute;left:0;top:.6em;width:7px;height:7px;
  background:var(--edge);transform:rotate(45deg);border-radius:1px;
  transition:background-color var(--t);
}
.foot-link:hover{color:var(--cyan);opacity:1;transform:translate(4px,-4px)}
.foot-link:hover::before{background:var(--red)}
.foot-contact__row{display:grid;gap:2px;margin:0 0 14px}
.foot-contact__key{font-size:11px;letter-spacing:.18em;color:var(--muted)}
.foot-contact__val{font-size:14px;color:var(--ink);line-height:1.7;word-break:break-word}
.foot-contact__val--mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:13px}

.foot-bottom{border-top:1px solid var(--edge);background:rgba(7,10,17,.72)}
.foot-bottom__inner{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;padding-block:18px}
.foot-legal{font-family:var(--font-mono);font-size:12px;color:var(--muted)}
.foot-meta{font-size:12px;color:var(--muted)}
.foot-meta [data-year]{font-family:var(--font-mono);color:var(--ink)}
.to-top{
  margin-left:auto;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;border:1px solid var(--edge);
  background:linear-gradient(118deg,rgba(27,69,200,.4),rgba(34,224,210,.22));
  color:var(--ink);font-size:13px;font-weight:600;cursor:pointer;
  transition:transform var(--t),border-color var(--t);
}
.to-top:hover{border-color:var(--cyan);transform:translate(4px,-4px)}

/* ---------- 10. 面板 / 标签 / 数字块 ---------- */
.panel{
  position:relative;
  padding:clamp(18px,2.6vw,30px);
  border:1px solid var(--edge);border-radius:var(--r-md);
  background:linear-gradient(152deg,rgba(18,26,40,.97),rgba(11,17,28,.9));
  transition:border-color var(--t),transform var(--t);
}
.panel:hover{border-color:rgba(34,224,210,.5);transform:translate(6px,-6px)}
.panel--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 24px),calc(100% - 24px) 100%,0 100%);border-radius:var(--r-md) 0 var(--r-md) var(--r-md)}
.panel__head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px 16px;
  padding-bottom:12px;margin-bottom:16px;border-bottom:1px dashed var(--edge);
}
.panel__title{font-size:20px;margin:0}
.panel__body{font-size:16px;color:#CBD6E7}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  border:1px solid var(--edge);background:rgba(10,14,22,.6);
  font-size:12px;letter-spacing:.08em;color:var(--muted);
  font-family:var(--font-mono);
}
.tag--red{color:#FFD9DE;border-color:rgba(224,37,60,.6);background:rgba(224,37,60,.18)}
.tag--blue{color:#DAE4FF;border-color:rgba(27,69,200,.75);background:rgba(27,69,200,.22)}
.tag--cyan{color:#CDFAF6;border-color:rgba(34,224,210,.55);background:rgba(34,224,210,.14)}
.tag--gold{color:#FFEFC2;border-color:rgba(240,194,75,.55);background:rgba(240,194,75,.14)}

.stat{display:grid;gap:4px}
.stat__value{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:clamp(28px,4vw,44px);line-height:1;color:var(--ink)}
.stat__label{font-size:12px;letter-spacing:.16em;color:var(--muted)}
.stat--red .stat__value{color:var(--orange)}
.stat--blue .stat__value{color:var(--cyan)}

.callout{
  position:relative;padding:16px 18px 16px 24px;
  border:1px solid var(--edge);border-radius:var(--r-sm);
  background:rgba(18,26,40,.85);font-size:15px;color:#CBD6E7;
}
.callout::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--red),var(--blue));
}
.callout--gold::before{background:linear-gradient(180deg,var(--gold),var(--orange))}

/* ---------- 11. 数据表格 ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--edge);border-radius:var(--r-md);
  background:rgba(10,14,22,.65);
  scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;
}
.data-table{width:100%;min-width:640px;border-collapse:collapse;font-size:15px}
.data-table caption{caption-side:top;text-align:left;padding:14px 16px 10px;font-size:13px;color:var(--muted)}
.data-table th{
  position:sticky;top:0;z-index:2;
  text-align:left;white-space:nowrap;
  padding:12px 16px;background:#0F1725;
  font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--muted);
  border-bottom:1px solid var(--edge);
}
.data-table td{padding:12px 16px;border-bottom:1px solid rgba(38,50,74,.55);color:#DDE5F2;vertical-align:middle}
.data-table tbody tr{transition:background-color var(--t),box-shadow var(--t)}
.data-table tbody tr:hover{
  background:linear-gradient(90deg,rgba(224,37,60,.12),rgba(27,69,200,.12));
  box-shadow:inset 3px 0 0 var(--cyan);
}
.data-table th:first-child,
.data-table td:first-child{
  position:sticky;left:0;z-index:1;background:#0C1220;
  box-shadow:1px 0 0 var(--edge);
}
.data-table tbody tr:hover td:first-child{background:#101A2A}
.data-table .num-cell{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- 12. 图像容器（供页面阶段放置占位） ---------- */
.media{
  position:relative;margin:0;overflow:hidden;
  border:1px solid var(--edge);border-radius:var(--r-md);
  background:
    linear-gradient(135deg,rgba(224,37,60,.20),rgba(224,37,60,0) 55%),
    linear-gradient(315deg,rgba(27,69,200,.24),rgba(27,69,200,0) 55%),
    #0D1420;
  isolation:isolate;
}
.media::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(38,50,74,.55) 1px,rgba(38,50,74,0) 1px),
    linear-gradient(90deg,rgba(38,50,74,.45) 1px,rgba(38,50,74,0) 1px);
  background-size:34px 34px,34px 34px;
  opacity:.6;
}
.media > img,
.media__img{position:absolute;inset:0;z-index:1;width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--t)}
.media--wide{aspect-ratio:16/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media--band{aspect-ratio:24/7}
.media--auto > img,
.media--auto > .media__img{position:static;height:auto}
.media--cut{clip-path:polygon(0 0,100% 0,100% 84%,88% 100%,0 100%)}
.media__tag{position:absolute;left:12px;top:12px;z-index:3}
.media__caption{margin-top:10px;font-size:13px;color:var(--muted)}
.media:hover > img,
.media:hover > .media__img{transform:scale(1.03)}

/* ---------- 13. 折叠条目 ---------- */
.disclosure{
  border:1px solid var(--edge);border-radius:var(--r-sm);
  background:rgba(18,26,40,.75);overflow:hidden;
}
.disclosure + .disclosure{margin-top:10px}
.disclosure summary{
  cursor:pointer;padding:15px 18px;font-weight:600;color:var(--ink);
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;
  transition:color var(--t);
}
.disclosure summary::-webkit-details-marker{display:none}
.disclosure summary::after{content:"+";font-family:var(--font-mono);color:var(--cyan);font-size:18px;line-height:1}
.disclosure[open] summary{color:#fff}
.disclosure[open] summary::after{content:"–"}
.disclosure summary:hover{color:var(--cyan)}
.disclosure__body{padding:0 18px 18px;font-size:15px;color:#C6D3E6}

/* ---------- 14. 工具类 ---------- */
.visually-hidden{
  position:absolute !important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 15. 响应式 ---------- */
@media (max-width:1080px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 40px}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:900px){
  body{font-size:16px}
  .hdr-rail__inner{flex-wrap:wrap;gap:10px 14px;min-height:58px;padding-block:12px}
  .hdr-tagline{display:none}
  .brand__mark{width:36px;height:36px;border-radius:10px}
  .brand__name{font-size:17px}
  .hdr-coord{border-radius:var(--r-sm)}
  .hdr-coord__item{padding:5px 10px}
  .hdr-coord__key{display:none}
  .site-header[data-condensed] .hdr-rail{display:none}

  .hdr-nav__inner{flex-wrap:wrap;align-items:center;gap:10px;min-height:0;padding-block:10px}
  .nav-toggle{display:inline-flex;order:1}
  .hdr-nav__inner > .btn--cta{order:2;margin-left:auto;margin-right:0;padding:10px 16px;font-size:13px}
  .nav{order:3;flex:0 0 100%;display:none}
  .nav[data-nav][data-open]{display:block}
  .nav__list{
    width:auto;display:flex;gap:8px;
    overflow-x:auto;scroll-snap-type:x mandatory;
    margin-inline:calc(var(--gutter) * -1);
    padding:6px var(--gutter) 12px;
    -webkit-overflow-scrolling:touch;
  }
  .nav__item{flex:0 0 auto;scroll-snap-align:start}
  .nav__link{
    min-height:44px;padding:0 16px;
    border:1px solid var(--edge);border-left:1px solid var(--edge);
    border-radius:999px;background:var(--panel);
  }
  .nav__link::after{display:none}
  .nav__link:hover{background:rgba(34,224,210,.08)}
  .nav__link[aria-current="page"]{
    border-color:rgba(224,37,60,.75);color:#fff;
    background:linear-gradient(118deg,rgba(224,37,60,.32),rgba(27,69,200,.3));
  }

  .grid--split,
  .grid--split-alt,
  .grid--2{grid-template-columns:minmax(0,1fr)}
  .grid--12{grid-template-columns:minmax(0,1fr)}
  [class^="col-"],[class*=" col-"]{grid-column:auto}
  .panel:hover{transform:translate(4px,-4px)}
}
@media (max-width:640px){
  .grid--3,
  .grid--4{grid-template-columns:minmax(0,1fr)}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .data-table{font-size:14px}
  .data-table th,.data-table td{padding:10px 12px}
  .foot-bottom__inner{align-items:flex-start}
  .to-top{margin-left:0;width:100%;justify-content:center}
}

/* ---------- 16. 减少动态效果 ---------- */
@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-progress__bar{transition:none}
  .btn:hover,.panel:hover,.foot-link:hover,.to-top:hover,.nav-toggle:hover{transform:none}
  .media:hover > img,.media:hover > .media__img{transform:none}
  .brand:hover .brand__mark{transform:rotate(-6deg)}
}