/* =========================================================
   博电竞iOS — /assets/site.css
   共享外壳：变量 / 重置 / 中文排版 / 头部轨道 / 页脚 / 组件
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink-0:#07090C;
  --ink-1:#0C1014;
  --ink-2:#11161B;
  --rock:#242C33;
  --blue:#2F7BFF;
  --blue-deep:#1E68E8;
  --gold:#FFB24A;
  --cyan:#4FF5E0;
  --magenta:#FF4F9A;
  --moss:#6A8570;
  --clay:#B76E4E;
  --paper:#F3EDE2;
  --mist:#A8B2BC;

  --line:rgba(168,178,188,.16);
  --line-strong:rgba(168,178,188,.32);

  --font-display:'Barlow Condensed','Oswald','Noto Sans SC',sans-serif;
  --font-editorial:'Noto Serif SC','Songti SC',serif;
  --font-body:'IBM Plex Sans','Noto Sans SC','PingFang SC',sans-serif;
  --font-mono:'IBM Plex Mono','JetBrains Mono','SFMono-Regular',monospace;

  --rail-w:244px;
  --rail-brand-h:138px;
  --bar-h:68px;
  --gutter:clamp(18px,4vw,48px);
  --max-w:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html[data-nav-open]{overflow:hidden}
body{
  margin:0;
  min-height:100%;
  background:var(--ink-0);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.78;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:inherit}
button{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
::selection{background:rgba(47,123,255,.42);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* 背景：深空黑 + 网格 + 极低饱和光晕 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(920px 620px at 84% -14%,rgba(47,123,255,.17),transparent 62%),
    radial-gradient(720px 520px at 4% 106%,rgba(255,79,154,.10),transparent 66%),
    linear-gradient(180deg,#07090C 0%,#080B10 60%,#06080B 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(to right,rgba(168,178,188,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(168,178,188,.042) 1px,transparent 1px);
  background-size:96px 96px,96px 96px;
  -webkit-mask-image:radial-gradient(circle at 50% 18%,#000 0%,transparent 78%);
  mask-image:radial-gradient(circle at 50% 18%,#000 0%,transparent 78%);
}

/* ---------- 3. 中文排版基调 ---------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.18;letter-spacing:.06em}
p{text-wrap:pretty}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(24px,3.1vw,34px);
  letter-spacing:.08em;
  margin:0 0 12px;
}
.lede{
  font-size:clamp(15px,1.6vw,17px);
  line-height:1.9;
  color:var(--mist);
  max-width:62ch;
}
.prose{max-width:66ch;font-size:16px;line-height:1.95;color:rgba(243,237,226,.88)}
.prose p{margin:0 0 1.05em}
.prose h2,.prose h3{margin:1.6em 0 .6em;color:var(--paper)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}
.rule{border:0;height:1px;background:var(--line);margin:0}

/* ---------- 4. 无障碍跳转 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  transform:translateY(-180%);
  padding:10px 18px;
  background:var(--gold);color:#0A0C0F;
  border:1px solid #0A0C0F;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  text-decoration:none;
  transition:transform .2s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}
#main-content{scroll-margin-top:calc(var(--bar-h) + 12px)}

/* ---------- 5. 头部外壳 ---------- */
.site-header{position:sticky;top:0;z-index:100}

.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:150;
  transform:scaleX(var(--progress,0));transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--blue) 46%,var(--magenta) 82%,var(--gold));
  pointer-events:none;
}

.site-header__bar{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:var(--bar-h);
  padding:10px var(--gutter);
  background:rgba(7,9,12,.94);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.site-header__bar::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(79,245,224,.5),rgba(47,123,255,.35) 40%,transparent 78%);
  opacity:.7;pointer-events:none;
}
.site-header__bar{position:relative}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--paper)}
.brand__glyph{
  width:25px;height:25px;flex:none;
  background:linear-gradient(135deg,var(--cyan) 0 48%,var(--blue) 48% 100%);
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
  box-shadow:0 0 22px rgba(79,245,224,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.08}
.brand__name{
  font-family:var(--font-display);font-weight:700;font-size:19px;
  letter-spacing:.17em;color:var(--paper);
}
.brand__tag{
  margin-top:5px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;
  color:var(--mist);
}

/* 抽屉开关 */
.nav-toggle{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 13px;
  background:transparent;color:var(--paper);
  border:1px solid var(--line-strong);
  cursor:pointer;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;
  transition:border-color .18s,color .18s,background .18s;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(79,245,224,.06)}
.nav-toggle__bars{display:grid;gap:4px;width:16px}
.nav-toggle__bars span{
  display:block;height:1.5px;width:100%;background:currentColor;
  transition:transform .24s var(--ease),opacity .16s;
}
.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)}
.site-header[data-open] .nav-toggle{border-color:var(--cyan);color:var(--cyan)}

/* 遮罩 */
.site-header__scrim{
  position:fixed;inset:0;z-index:96;
  background:rgba(4,6,9,.74);
  -webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s;
}
.site-header[data-open] .site-header__scrim{opacity:1;visibility:visible}

/* 抽屉 / 轨道 */
.site-header__drawer{
  position:fixed;top:0;left:0;bottom:0;z-index:97;
  width:min(332px,86vw);
  display:flex;flex-direction:column;justify-content:space-between;gap:26px;
  padding:calc(var(--bar-h) + 24px) 20px 30px;
  background:linear-gradient(180deg,#0A0E12 0%,#07090C 100%);
  border-right:1px solid var(--line-strong);
  overflow-y:auto;
  transform:translateX(-104%);
  visibility:hidden;
  transition:transform .3s var(--ease),visibility .3s;
}
.site-header[data-open] .site-header__drawer{transform:translateX(0);visibility:visible}

/* 导航 */
.site-nav__caption{
  display:flex;align-items:center;gap:10px;
  margin:0 0 14px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.28em;
  color:var(--mist);text-transform:uppercase;
}
.site-nav__caption::after{content:"";flex:1;height:1px;background:var(--line)}
.site-nav__list{display:grid;gap:2px}
.site-nav__item{margin:0}
.site-nav__link{
  display:flex;align-items:baseline;gap:12px;
  padding:11px 12px 11px 11px;
  color:var(--mist);text-decoration:none;
  border-left:2px solid transparent;
  font-family:var(--font-display);font-size:17px;font-weight:500;letter-spacing:.1em;
  transition:color .16s,background .16s,border-color .16s;
}
.site-nav__num{
  min-width:22px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:rgba(168,178,188,.52);
  transition:color .16s;
}
.site-nav__link:hover{color:var(--paper);background:rgba(47,123,255,.09);border-left-color:rgba(47,123,255,.55)}
.site-nav__link:hover .site-nav__num{color:var(--cyan)}
.site-nav__link[aria-current="page"]{
  color:var(--paper);
  border-left-color:var(--blue);
  background:linear-gradient(90deg,rgba(47,123,255,.22),rgba(47,123,255,0));
}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--gold)}
.site-nav__link[aria-current="page"]::after{
  content:"";width:4px;height:4px;margin-left:auto;align-self:center;
  background:var(--cyan);box-shadow:0 0 8px var(--cyan);
}

/* 轨道底部客服 */
.site-nav__aside{
  border-top:1px solid var(--line);
  padding-top:16px;
  display:grid;gap:10px;
}
.site-nav__aside-label{
  margin:0;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.26em;
  color:var(--mist);text-transform:uppercase;
}
.site-nav__cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 14px;
  color:var(--gold);text-decoration:none;
  border:1px solid rgba(255,178,74,.45);
  background:linear-gradient(90deg,rgba(255,178,74,.12),rgba(255,178,74,0));
  font-family:var(--font-display);font-size:15px;font-weight:600;letter-spacing:.18em;
  transition:background .18s,color .18s,border-color .18s,transform .18s;
}
.site-nav__cta:hover{background:var(--gold);color:#0A0C0F;border-color:var(--gold);transform:translateX(2px)}
.site-nav__aside-note{
  margin:0;
  font-family:var(--font-mono);font-size:11.5px;line-height:1.65;letter-spacing:.04em;
  color:rgba(168,178,188,.76);
}

/* ---------- 6. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  border-top:1px solid var(--line);
  background:
    radial-gradient(620px 340px at 88% 0%,rgba(47,123,255,.15),transparent 70%),
    linear-gradient(180deg,rgba(12,16,20,.98),#05070A 72%);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--blue) 44%,var(--magenta) 78%,var(--gold));
  opacity:.8;
}
.footer-inner{
  max-width:var(--max-w);margin:0 auto;
  padding:clamp(38px,6vw,72px) var(--gutter) clamp(26px,4vw,42px);
  display:grid;gap:clamp(28px,4vw,44px);
  grid-template-columns:minmax(0,1fr);
}
@media (min-width:720px){
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1024px){
  .footer-inner{grid-template-columns:1.45fr .8fr .8fr 1.25fr}
}

.footer-brand__name{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(22px,2.6vw,28px);letter-spacing:.2em;
  margin:0 0 10px;color:var(--paper);
}
.footer-brand__line{
  margin:0 0 20px;
  font-size:13.5px;line-height:1.8;letter-spacing:.05em;
  color:var(--mist);max-width:32ch;
}
.footer-brand__cta{margin-top:2px}

.footer-col__title{
  display:flex;align-items:center;gap:10px;
  margin:0 0 16px;
  font-family:var(--font-mono);font-size:10.5px;font-weight:500;
  letter-spacing:.26em;text-transform:uppercase;color:var(--mist);
}
.footer-col__title::before{content:"";width:14px;height:1px;background:var(--cyan)}

.footer-links{display:grid;gap:9px}
.footer-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:2px 0;
  color:var(--paper);text-decoration:none;
  font-size:14.5px;letter-spacing:.04em;
  border-bottom:1px solid transparent;
  transition:color .16s,border-color .16s,transform .16s;
}
.footer-link::before{content:"／";font-size:11px;color:rgba(168,178,188,.42);transition:color .16s}
.footer-link:hover{color:var(--cyan);border-bottom-color:rgba(79,245,224,.5);transform:translateX(2px)}
.footer-link:hover::before{color:var(--gold)}

.footer-contact{display:grid;gap:13px;margin-bottom:16px}
.footer-contact__item{display:grid;gap:3px}
.footer-contact__label{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.22em;
  color:rgba(168,178,188,.8);text-transform:uppercase;
}
.footer-contact__row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.footer-contact__value{
  font-size:14px;letter-spacing:.02em;color:var(--paper);
  word-break:break-word;font-family:var(--font-mono);
}
.footer-note{
  margin:0;max-width:36ch;
  font-size:12.5px;line-height:1.75;color:rgba(168,178,188,.82);
}

.copy-btn{
  padding:3px 9px;
  background:transparent;color:var(--mist);
  border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  cursor:pointer;
  transition:color .16s,border-color .16s,background .16s;
}
.copy-btn:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(79,245,224,.07)}
.copy-btn[data-copied]{color:#0A0C0F;background:var(--cyan);border-color:var(--cyan)}

.footer-meta{
  max-width:var(--max-w);margin:0 auto;
  padding:16px var(--gutter) 28px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;
  color:rgba(168,178,188,.72);
}
.footer-copy,.footer-icp{margin:0}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px;margin-left:auto}
.footer-legal__link{
  color:rgba(168,178,188,.82);text-decoration:none;
  border-bottom:1px solid transparent;transition:color .16s,border-color .16s;
}
.footer-legal__link:hover{color:var(--paper);border-bottom-color:var(--gold)}

/* ---------- 7. 通用组件 ---------- */
.container{
  width:100%;max-width:var(--max-w);margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{position:relative;padding-block:clamp(46px,7vw,92px)}
.section-head{display:grid;gap:10px;margin-bottom:clamp(22px,3vw,36px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  margin:0 0 12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:18px;height:1px;background:currentColor}
.section-num{
  display:block;margin:0 0 4px;
  font-family:var(--font-editorial);font-weight:400;
  font-size:clamp(40px,6vw,66px);line-height:.88;letter-spacing:-.02em;
  color:transparent;-webkit-text-stroke:1px rgba(168,178,188,.42);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;
  text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  font-family:var(--font-display);font-size:15px;font-weight:600;letter-spacing:.16em;
  transition:background .18s,color .18s,border-color .18s,box-shadow .18s,transform .18s;
}
.btn--solid{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn--solid:hover{background:var(--blue-deep);box-shadow:0 0 0 3px rgba(47,123,255,.24)}
.btn--ghost{background:transparent;color:var(--paper);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(79,245,224,.07)}
.btn--gold{background:var(--gold);color:#0A0C0F;border-color:var(--gold)}
.btn--gold:hover{filter:brightness(1.08);transform:translateY(-1px)}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;
  border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--mist);text-decoration:none;
  transition:color .16s,border-color .16s,background .16s;
}
.chip:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(79,245,224,.07)}
.chip--gold{color:var(--gold);border-color:rgba(255,178,74,.46)}
.chip--cyan{color:var(--cyan);border-color:rgba(79,245,224,.42)}

.card{
  position:relative;
  padding:clamp(18px,2.4vw,26px);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(36,44,51,.55),rgba(12,16,20,.78));
  transition:border-color .2s,transform .2s;
}
.card::before{
  content:"";position:absolute;top:-1px;left:-1px;
  width:14px;height:14px;
  border-top:1px solid var(--cyan);border-left:1px solid var(--cyan);
  opacity:.55;transition:opacity .2s;
}
.card:hover{border-color:var(--line-strong)}
.card:hover::before{opacity:1}
.card--plain{background:var(--ink-1)}

.table-scroll{width:100%;overflow-x:auto;border:1px solid var(--line)}
.data-table{min-width:520px;font-size:14px}
.data-table th,.data-table td{padding:11px 13px;text-align:left;border-bottom:1px solid var(--line)}
.data-table th{
  font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.16em;
  text-transform:uppercase;color:var(--mist);background:rgba(36,44,51,.6);
  white-space:nowrap;
}
.data-table td{color:rgba(243,237,226,.9)}
.data-table td.num{font-family:var(--font-mono);color:var(--cyan);letter-spacing:.04em}
.data-table tbody tr{transition:background .16s}
.data-table tbody tr:hover{background:rgba(47,123,255,.09)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table caption{
  caption-side:bottom;padding:10px 13px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:rgba(168,178,188,.75);text-align:left;
}

/* 图片容器基础规则（页面阶段放置 img 或纯占位） */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);
  background:linear-gradient(140deg,#131A21,#080B0F);
  isolation:isolate;
}
.media-frame > img{
  width:100%;height:100%;object-fit:cover;
  filter:contrast(1.06) saturate(.92) brightness(.94);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__glow{
  position:absolute;inset:0;pointer-events:none;z-index:1;
  background:
    radial-gradient(70% 62% at 80% 10%,rgba(47,123,255,.30),transparent 70%),
    radial-gradient(58% 52% at 10% 96%,rgba(255,79,154,.22),transparent 74%);
}
.media-frame__scan{
  position:absolute;inset:0;pointer-events:none;z-index:2;opacity:.5;
  background:repeating-linear-gradient(180deg,rgba(4,6,9,.30) 0 1px,transparent 1px 4px);
  mix-blend-mode:overlay;
}
.media-frame__cap{
  position:absolute;left:0;bottom:0;z-index:3;
  padding:10px 14px;
  background:linear-gradient(90deg,rgba(7,9,12,.92),rgba(7,9,12,0));
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--paper);
}

/* 网格与节奏 */
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid--split{grid-template-columns:minmax(0,1fr)}
@media (min-width:900px){
  .grid--split{grid-template-columns:minmax(0,1.55fr) minmax(0,1fr)}
}
.stack{display:grid;gap:14px}

/* 面包屑 */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:16px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;
  color:var(--mist);
}
.breadcrumbs a{
  color:var(--mist);text-decoration:none;
  border-bottom:1px solid transparent;transition:color .16s,border-color .16s;
}
.breadcrumbs a:hover{color:var(--paper);border-bottom-color:var(--cyan)}
.breadcrumbs__sep{opacity:.45}
.breadcrumbs [aria-current="page"]{color:var(--paper)}

/* ---------- 8. 滚动显现（无 JS 时不隐藏） ---------- */
html.has-reveal [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
html.has-reveal [data-reveal].is-revealed{opacity:1;transform:translateY(0)}

/* ---------- 9. 桌面端：侧边轨道 ---------- */
@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
  .site-header{position:static}
  #main-content{scroll-margin-top:24px}

  .scroll-progress{left:var(--rail-w)}

  .site-header__bar{
    position:fixed;top:0;left:0;
    width:var(--rail-w);height:var(--rail-brand-h);
    flex-direction:column;align-items:flex-start;justify-content:center;gap:0;
    padding:24px 22px 20px;
    border-right:1px solid var(--line);
    border-bottom:1px solid var(--line);
    background:linear-gradient(180deg,rgba(12,16,20,.98),rgba(7,9,12,.98));
  }
  .site-header__bar::after{
    left:0;right:0;bottom:-1px;top:auto;width:auto;height:1px;
    background:linear-gradient(90deg,rgba(79,245,224,.55),rgba(47,123,255,.35) 52%,transparent);
  }
  .nav-toggle{display:none}
  .site-header__scrim{display:none}
  .site-header__drawer{
    top:var(--rail-brand-h);bottom:0;left:0;right:auto;
    width:var(--rail-w);
    transform:none;visibility:visible;
    padding:24px 20px 26px;
    border-right:1px solid var(--line);
    border-bottom:0;
    z-index:90;
    background:linear-gradient(180deg,rgba(10,14,18,.97),rgba(7,9,12,1));
  }
  .site-nav__link{font-size:17.5px}
}

@media (min-width:1440px){
  :root{--rail-w:268px}
}

/* ---------- 10. 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;
  }
  html.has-reveal [data-reveal]{opacity:1;transform:none;transition:none}
  .site-header__drawer{transition:none}
  .site-header__scrim{transition:none}
}