/* ============================================================
   维基体育主站 · 共享样式 /assets/site.css
   深海蓝数据底 × 奶油档案纸 × 荧光青数据线 × 珊瑚橙行动色
   ============================================================ */

:root{
  --ink:#071A2B;
  --ink-2:#0B2E4A;
  --ink-3:#05131F;
  --paper:#F4EBDD;
  --paper-2:#EBDFCC;
  --cyan:#37F3D2;
  --coral:#FF6B4A;
  --amber:#E8A23A;
  --brown:#2A1C16;
  --mist:#9BB0BF;
  --ok:#2FBF71;
  --warn:#D64550;

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

  --header-h:102px;
  --gutter:clamp(18px,4vw,48px);
  --radius:4px;
  --focus:var(--coral);
  --ease:cubic-bezier(.2,.7,.2,1);
  --shadow-print:8px 8px 0 rgba(11,46,74,.10);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,p,ul,ol,dl,dd,figure,blockquote{margin:0}
ul,ol{padding:0}
img,svg,video{max-width:100%;height:auto}
button{font:inherit;color:inherit;cursor:pointer}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-weight:800;line-height:1.2;letter-spacing:-.015em}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:2px}

/* ---------- 中文排版基础 ---------- */
html{
  scroll-padding-top:calc(var(--header-h) + 16px);
  background:var(--paper);
}
@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}
body{
  background:var(--paper);
  color:var(--brown);
  font-family:var(--font-sans);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
.mono,.contact-val.mono,.footer-legal__icp{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}

/* ---------- 外壳占位：固定头部补偿 ---------- */
#main-content{display:block;padding-top:var(--header-h)}
#main-content.main--flush{padding-top:0}

/* ---------- 布局容器 ---------- */
.container{
  width:100%;
  max-width:1240px;
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(40px,6vw,88px)}
.section--ink{background:var(--ink);color:var(--paper)}
.section--paper{background:var(--paper);color:var(--brown)}
.section--edge{
  background:
    linear-gradient(180deg,rgba(55,243,210,.06),transparent 60%),
    var(--paper-2);
}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--split{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.grid--halves{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--thirds{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--side{grid-template-columns:minmax(0,1fr) 260px;align-items:start}

/* ---------- 文本工具 ---------- */
.t-display{font-size:clamp(38px,7vw,72px);line-height:.96;letter-spacing:-.03em;font-weight:900}
.t-h2{font-size:clamp(26px,3.4vw,40px);line-height:1.14;letter-spacing:-.02em;font-weight:800}
.t-h3{font-size:clamp(19px,2vw,24px);line-height:1.3;font-weight:700}
.t-note{font-size:13px;line-height:1.65;letter-spacing:.02em;opacity:.78}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;line-height:1;
  letter-spacing:.22em;text-transform:uppercase;color:inherit;
}
.eyebrow::before{
  content:"";width:26px;height:2px;background:var(--coral);flex:none;
}
.section--ink .eyebrow::before{background:var(--cyan)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:3px;border:1px solid transparent;
  font-family:var(--font-sans);font-size:15px;font-weight:700;line-height:1.2;
  letter-spacing:.02em;text-align:center;
  transition:transform .18s var(--ease),background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--sm{padding:9px 15px;font-size:13px}
.btn--signal{background:var(--coral);color:var(--ink);box-shadow:0 7px 0 -4px rgba(255,107,74,.5)}
.btn--signal:hover{background:#FF8163;transform:translateY(-2px);box-shadow:0 10px 0 -4px rgba(255,107,74,.45)}
.btn--ghost{background:transparent;color:var(--paper);border-color:rgba(244,235,221,.36)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--paper{background:var(--paper);color:var(--brown);border-color:rgba(42,28,22,.32)}
.btn--paper:hover{background:#fff;transform:translateY(-2px)}
.btn--line{background:transparent;color:var(--brown);border-color:rgba(42,28,22,.34)}
.btn--line:hover{border-color:var(--ink);color:var(--ink)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;border-radius:2px;border:1px solid rgba(7,26,43,.18);
  background:rgba(7,26,43,.06);color:var(--ink-2);
  font-family:var(--font-mono);font-size:11px;line-height:1.4;
  letter-spacing:.12em;white-space:nowrap;
}
.tag--solid{background:rgba(55,243,210,.12);border-color:rgba(55,243,210,.45);color:var(--cyan)}
.tag--amber{background:rgba(232,162,58,.18);border-color:rgba(232,162,58,.6);color:#7A4E0C}
.tag--ok{background:rgba(47,191,113,.16);border-color:rgba(47,191,113,.55);color:#12673A}
.tag--warn{background:rgba(214,69,80,.12);border-color:rgba(214,69,80,.5);color:#8C1F28}

/* ---------- 纸面卡片与数据面板 ---------- */
.paper-card{
  background:var(--paper);
  color:var(--brown);
  border:1px solid rgba(42,28,22,.22);
  border-radius:var(--radius);
  box-shadow:var(--shadow-print);
  padding:clamp(20px,3vw,32px);
}
.panel{
  background:linear-gradient(150deg,var(--ink-2),var(--ink) 70%);
  color:var(--paper);
  border:1px solid rgba(55,243,210,.2);
  border-radius:var(--radius);
  padding:clamp(18px,2.6vw,28px);
}
.panel .t-note{color:var(--mist);opacity:1}

/* ---------- 正文容器 ---------- */
.prose{
  max-width:74ch;
  font-size:17px;
  line-height:1.78;
  color:var(--brown);
}
.prose p+p{margin-top:1em}
.prose h2{margin:1.9em 0 .6em;font-size:clamp(22px,2.4vw,30px)}
.prose h3{margin:1.6em 0 .5em;font-size:clamp(18px,2vw,22px)}
.prose ul,.prose ol{margin:1em 0;padding-left:1.35em}
.prose ul{list-style:square}
.prose li+li{margin-top:.4em}
.prose a{
  color:#0B5E7A;
  text-decoration:underline;
  text-decoration-thickness:1.5px;
  text-underline-offset:3px;
}
.prose a:hover{color:var(--ink-2);background:rgba(55,243,210,.28)}
.prose strong{font-weight:800}
.prose blockquote{
  margin:1.5em 0;padding:14px 18px;
  border-left:3px solid var(--coral);
  background:rgba(7,26,43,.05);
  font-size:16px;
}

/* ---------- 图片基础容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16/10;
  border-radius:var(--radius);
  border:1px solid rgba(55,243,210,.22);
  background:linear-gradient(140deg,var(--ink-2),var(--ink));
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}
.media-frame img{
  display:block;width:100%;height:100%;
  object-fit:cover;object-position:center;
}
.media-frame--linework::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    repeating-linear-gradient(115deg,rgba(55,243,210,.18) 0 1px,transparent 1px 16px),
    radial-gradient(circle at 78% 22%,rgba(255,107,74,.32),transparent 58%);
}
.media-frame__tag{position:absolute;top:12px;left:12px;z-index:2}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:14px 16px 12px;
  font-size:13px;line-height:1.6;color:var(--paper);
  background:linear-gradient(180deg,transparent,rgba(7,26,43,.88));
}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;line-height:1.6}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--mist);font-family:var(--font-mono)}
.breadcrumb a{
  color:inherit;opacity:.75;
  border-bottom:1px solid rgba(155,176,191,.6);
}
.breadcrumb a:hover{opacity:1;border-bottom-color:var(--coral)}
.breadcrumb [aria-current="page"]{font-weight:700;opacity:1}

/* ---------- 侧边悬浮索引 ---------- */
.spy{
  position:sticky;
  top:calc(var(--header-h) + 18px);
  font-size:13px;
}
.spy__label{
  margin-bottom:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--mist);
}
.spy-list{list-style:none;border-left:1px solid rgba(42,28,22,.2)}
.section--ink .spy-list{border-left-color:rgba(55,243,210,.24)}
.spy-link{
  display:block;
  margin-left:-1px;
  padding:7px 12px;
  border-left:2px solid transparent;
  color:inherit;opacity:.7;
  transition:opacity .18s ease,border-color .18s ease,color .18s ease,background-color .18s ease;
}
.spy-link:hover{opacity:1;background:rgba(55,243,210,.12)}
.spy-link[aria-current="true"]{
  opacity:1;font-weight:700;color:#0B5E7A;
  border-left-color:var(--coral);
  background:rgba(55,243,210,.10);
}
.section--ink .spy-link[aria-current="true"]{color:var(--cyan)}

/* ---------- 滚动显现 ---------- */
html.reveal-ready [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .42s ease,transform .42s var(--ease);
}
html.reveal-ready [data-reveal].is-in{opacity:1;transform:none}
html.reveal-ready [data-stagger]>*{
  opacity:0;transform:translateY(14px);
  transition:opacity .4s ease,transform .4s var(--ease);
}
html.reveal-ready [data-stagger].is-in>*{opacity:1;transform:none}
html.reveal-ready [data-stagger].is-in>*:nth-child(2){transition-delay:.06s}
html.reveal-ready [data-stagger].is-in>*:nth-child(3){transition-delay:.12s}
html.reveal-ready [data-stagger].is-in>*:nth-child(4){transition-delay:.18s}
html.reveal-ready [data-stagger].is-in>*:nth-child(5){transition-delay:.24s}
html.reveal-ready [data-stagger].is-in>*:nth-child(6){transition-delay:.30s}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  transform:translateY(-180%);
  padding:10px 16px;border-radius:3px;
  background:var(--cyan);color:var(--ink);
  font-weight:700;font-size:14px;
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:none}

/* ============================================================
   页头
   ============================================================ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  color:var(--paper);
  --focus:var(--cyan);
  background:linear-gradient(180deg,rgba(7,26,43,.94) 0%,rgba(7,26,43,.70) 58%,rgba(7,26,43,0) 100%);
  transition:background-color .32s ease,box-shadow .32s ease;
}
.site-header.is-stuck{
  background:var(--ink);
  box-shadow:0 1px 0 rgba(55,243,210,.3),0 20px 38px -28px rgba(0,0,0,.95);
}

/* 顶部索引条 */
.header-strip{
  max-height:34px;
  overflow:hidden;
  background:rgba(5,19,31,.6);
  border-bottom:1px solid rgba(55,243,210,.18);
  transition:max-height .3s var(--ease),opacity .24s ease;
}
.site-header.is-stuck .header-strip{max-height:0;opacity:0;border-bottom-color:transparent}
.strip-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:34px;
}
.strip-label{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;line-height:1;
  letter-spacing:.14em;color:var(--mist);
  white-space:nowrap;
}
.strip-dot{
  width:6px;height:6px;border-radius:50%;flex:none;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(55,243,210,.16);
}
.strip-actions{display:flex;align-items:center;gap:18px;list-style:none}
.strip-link{
  font-size:12px;line-height:1;letter-spacing:.06em;
  color:rgba(244,235,221,.76);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color .16s ease,border-color .16s ease;
}
.strip-link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

/* 主导航条 */
.header-bar{position:relative;z-index:2}
.header-inner{
  display:flex;align-items:center;gap:clamp(14px,2vw,26px);
  min-height:68px;
}
.brand{
  display:inline-flex;align-items:center;gap:12px;
  flex:none;
}
.brand__mark{
  width:36px;height:36px;flex:none;border-radius:3px;
  background:
    repeating-linear-gradient(135deg,rgba(7,26,43,.5) 0 5px,transparent 5px 8px),
    linear-gradient(135deg,var(--cyan) 0%,#1FB9A6 52%,var(--coral) 100%);
  box-shadow:inset 0 0 0 1px rgba(244,235,221,.45);
}
.brand__text{display:flex;flex-direction:column;gap:3px}
.brand__name{
  font-size:20px;font-weight:900;line-height:1;
  letter-spacing:.08em;
}
.brand__line{
  font-family:var(--font-mono);font-size:10px;line-height:1;
  letter-spacing:.16em;color:var(--mist);
  white-space:nowrap;
}
.brand--footer .brand__name{font-size:22px}
.brand--footer .brand__line{color:rgba(155,176,191,.9)}

.nav-cta{margin-left:6px;flex:none}

.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(10px,1.7vw,22px);list-style:none}
.nav-link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:6px;
  padding:8px 2px 9px;
  font-size:14px;font-weight:600;line-height:1;
  letter-spacing:.03em;color:rgba(244,235,221,.84);
  transition:color .18s ease;
}
.nav-idx{
  font-family:var(--font-mono);font-size:10px;line-height:1;
  letter-spacing:.08em;color:var(--mist);opacity:.72;
  transition:color .18s ease,opacity .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--coral);
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--cyan)}
.nav-link:hover .nav-idx,.nav-link:focus-visible .nav-idx{color:var(--cyan);opacity:1}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cyan)}
.nav-link[aria-current="page"] .nav-idx{color:var(--coral);opacity:1}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.nav-aside{display:none}

/* 汉堡按钮 */
.nav-toggle{
  display:none;
  align-items:center;gap:9px;
  margin-left:auto;
  padding:9px 12px;
  border-radius:3px;
  border:1px solid rgba(244,235,221,.32);
  background:transparent;color:var(--paper);
  font-size:12px;line-height:1;letter-spacing:.14em;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__label{font-family:var(--font-mono)}
.nav-toggle__bars{
  position:relative;display:block;
  width:18px;height:2px;flex:none;
  background:currentColor;
  transition:background-color .2s ease;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;
  width:18px;height:2px;background:currentColor;
  transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[data-open="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[data-open="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[data-open="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

/* 遮罩与进度线 */
.nav-scrim{display:none}
.scroll-meter{
  position:absolute;left:0;right:0;bottom:0;
  height:2px;background:rgba(244,235,221,.12);
  pointer-events:none;
}
.scroll-meter__fill{
  display:block;width:0;height:100%;
  background:linear-gradient(90deg,var(--cyan),var(--coral));
  transition:width .12s linear;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  background:var(--ink);
  color:var(--paper);
  overflow:hidden;
  --focus:var(--cyan);
}
.footer-pulse{
  height:12px;
  background:
    repeating-linear-gradient(90deg,rgba(55,243,210,.55) 0 2px,transparent 2px 22px),
    linear-gradient(180deg,rgba(55,243,210,.1),transparent),
    var(--ink-3);
  border-bottom:1px solid rgba(55,243,210,.22);
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1.5fr) minmax(0,1fr);
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(40px,6vw,72px);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:16px}
.footer-brand__summary{
  max-width:34ch;
  font-size:14px;line-height:1.8;
  color:rgba(244,235,221,.72);
}
.footer-actions{display:flex;flex-wrap:wrap;gap:10px}

.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.4vw,26px);
}
.footer-col__title{
  display:inline-flex;align-items:center;gap:8px;
  margin-bottom:12px;
  font-family:var(--font-mono);font-size:11px;line-height:1;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
}
.footer-col__title::before{content:"";width:12px;height:2px;background:var(--coral);flex:none}
.footer-links{list-style:none;display:grid;gap:6px}
.footer-links a{
  display:inline-block;
  font-size:14px;line-height:1.8;
  color:rgba(244,235,221,.78);
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.footer-links a:hover{color:var(--cyan);border-bottom-color:rgba(55,243,210,.5)}

.footer-contact{
  align-self:start;
  padding:20px 22px;
  border-radius:var(--radius);
  border:1px solid rgba(42,28,22,.28);
  background:var(--paper);
  color:var(--brown);
  box-shadow:7px 7px 0 rgba(55,243,210,.18);
}
.footer-contact__title{
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:11px;line-height:1;
  letter-spacing:.18em;text-transform:uppercase;color:var(--ink-2);
}
.contact-list{list-style:none;display:grid;gap:10px}
.contact-list li{
  display:grid;grid-template-columns:44px minmax(0,1fr);
  gap:10px;align-items:baseline;
  padding-bottom:10px;
  border-bottom:1px dashed rgba(42,28,22,.22);
}
.contact-list li:last-child{border-bottom:0;padding-bottom:0}
.contact-key{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
  color:#7A6A5E;
}
.contact-val{font-size:13px;line-height:1.6;word-break:break-word}
.footer-contact__note{
  margin-top:12px;
  font-size:12px;line-height:1.7;color:#5A4A40;
}

.footer-legal{
  background:var(--ink-3);
  border-top:1px solid rgba(55,243,210,.18);
}
.footer-legal__inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  padding-block:18px;
  font-size:12px;line-height:1.7;
  color:rgba(155,176,191,.95);
}
.footer-legal__meta{display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap}
.footer-legal__icp{color:var(--cyan);font-size:12px}
.footer-legal__dot{
  width:4px;height:4px;border-radius:50%;
  background:rgba(155,176,191,.7);flex:none;
}
.footer-legal__note{margin-left:auto}
.footer-legal__links{display:flex;gap:16px;list-style:none}
.footer-legal__links a{
  color:rgba(244,235,221,.76);
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.footer-legal__links a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1100px){
  .footer-top{grid-template-columns:minmax(0,1fr) minmax(0,1.2fr)}
  .footer-contact{grid-column:1 / -1}
}

@media (max-width:960px){
  :root{--header-h:64px}

  .header-strip{display:none}
  .header-inner{min-height:64px;gap:14px}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:fixed;
    top:var(--header-h);right:0;bottom:0;
    width:min(88vw,380px);
    z-index:1;
    display:block;
    margin-left:0;
    padding:22px 22px calc(28px + env(safe-area-inset-bottom));
    overflow-y:auto;
    background:var(--ink);
    border-left:1px solid rgba(55,243,210,.24);
    box-shadow:-24px 0 48px -30px rgba(0,0,0,.9);
    transform:translateX(100%);
    visibility:hidden;
    transition:transform .32s var(--ease),visibility .32s linear;
  }
  .site-header[data-open="true"] .site-nav{transform:none;visibility:visible}

  .nav-list{display:grid;gap:0}
  .nav-link{
    display:flex;align-items:baseline;gap:12px;
    width:100%;
    padding:14px 4px;
    font-size:17px;
    border-bottom:1px solid rgba(244,235,221,.09);
  }
  .nav-link::after{display:none}
  .nav-idx{font-size:11px;width:22px}
  .nav-link[aria-current="page"]{color:var(--cyan)}
  .nav-link[aria-current="page"] .nav-idx{color:var(--coral)}

  .nav-aside{
    display:block;
    margin-top:26px;
    padding-top:20px;
    border-top:1px solid rgba(55,243,210,.2);
  }
  .nav-aside__label{
    margin-bottom:12px;
    font-family:var(--font-mono);font-size:11px;line-height:1;
    letter-spacing:.2em;text-transform:uppercase;color:var(--mist);
  }
  .nav-aside .btn{width:100%}
  .nav-aside__link{
    display:block;
    margin-top:12px;
    font-size:14px;
    color:rgba(244,235,221,.8);
    border-bottom:1px solid rgba(244,235,221,.18);
    padding-bottom:8px;
  }
  .nav-aside__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

  .nav-scrim{
    display:block;
    position:fixed;inset:0;
    z-index:0;
    border:0;padding:0;
    background:rgba(4,14,24,.66);
    opacity:0;pointer-events:none;
    transition:opacity .28s ease;
  }
  .site-header[data-open="true"] .nav-scrim{opacity:1;pointer-events:auto}

  .grid--split,.grid--halves,.grid--thirds,.grid--side{grid-template-columns:minmax(0,1fr)}
  .grid--side .spy{position:static;order:2}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-legal__note{margin-left:0;flex-basis:100%}
}

@media (max-width:640px){
  body{font-size:16px}
  .brand__line{display:none}
  .brand__mark{width:32px;height:32px}
  .brand__name{font-size:18px}
  .footer-cols{grid-template-columns:minmax(0,1fr);gap:22px}
  .footer-legal__links{gap:12px;flex-wrap:wrap}
  .footer-actions .btn{flex:1 1 auto}
  .spy{display:none}
}

/* ============================================================
   动效降级
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.reveal-ready [data-reveal],
  html.reveal-ready [data-stagger]>*{opacity:1 !important;transform:none !important}
  .btn:hover{transform:none}
  .site-nav{transition:none}
  .scroll-meter__fill{transition:none}
}