/* =========================================================
   杏运体育赛事 · 共享样式 /assets/site.css
   午夜蓝底 + 精密网格 + 深杏橙能量色 + 等宽索引
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#0E1A2B;
  --ink-deep:#060D16;
  --panel:#16273C;
  --line:#2C3F58;

  --orange:#E86A2C;
  --orange-soft:#FF9358;
  --cyan:#39E6D0;

  --paper:#F5F2EC;
  --mist:#9FB0C4;
  --red:#E4402F;
  --yellow:#F2C230;

  --font-display:"Bebas Neue","Oswald","Impact","Haettenschweiler","Arial Narrow","PingFang SC","Microsoft YaHei",sans-serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;

  --shell:1320px;
  --gutter:clamp(16px,3.2vw,40px);
  --cut:10px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,picture,video{display:block;max-width:100%}
table{border-collapse:collapse;border-spacing:0}
input,select,textarea{font:inherit}

/* ---------- 3. 排版基线 ---------- */
h1,h2,h3{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.04;
  letter-spacing:-.02em;
  color:var(--paper);
}
h1{font-size:clamp(2.4rem,5vw,4.6rem)}
h2{font-size:clamp(1.8rem,3.4vw,2.9rem)}
h3{font-size:clamp(1.2rem,2vw,1.6rem)}
::selection{background:var(--orange);color:var(--ink-deep)}

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

/* ---------- 4. 布局基元 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 var(--gutter);
}
.section{padding:clamp(48px,7vw,96px) 0}
.hairline{height:1px;background:var(--line);border:0;margin:0}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--orange);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--orange)}

.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

/* ---------- 5. 跳过链接 ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-80px;
  z-index:200;
  padding:14px 22px;
  background:var(--orange);
  color:var(--ink-deep);
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- 6. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(14,26,43,.96);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  transition:border-color .18s var(--ease);
}
.site-header[data-open]{border-bottom-color:var(--orange)}

.header-rail{
  position:relative;
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 var(--gutter);
  min-height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(12px,2vw,32px);
  transition:min-height .18s var(--ease);
}
.site-header[data-scrolled="true"] .header-rail{min-height:60px}

.brand-block{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.8vw,24px);
  min-width:0;
}

.brand-mark{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.brand-mark__glyph{
  flex:0 0 auto;
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  background:var(--orange);
  color:var(--ink-deep);
  font-family:var(--font-display);
  font-size:21px;
  font-weight:800;
  line-height:1;
  letter-spacing:0;
  clip-path:polygon(0 0,100% 0,100% 74%,84% 100%,0 100%);
  transition:background .18s var(--ease);
}
.brand-mark:hover .brand-mark__glyph{background:var(--orange-soft)}
.brand-mark__text{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand-mark__name{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:800;
  line-height:1.1;
  letter-spacing:.02em;
  color:var(--paper);
  white-space:nowrap;
}
.brand-mark__line{
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1.2;
  letter-spacing:.16em;
  color:var(--mist);
  white-space:nowrap;
  transition:opacity .18s var(--ease);
}
.site-header[data-scrolled="true"] .brand-mark__line{opacity:0;pointer-events:none}

.data-capsule{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 16px;
  border:1px solid var(--line);
  background:linear-gradient(100deg,rgba(22,39,60,.92),rgba(14,26,43,.55));
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.4;
  letter-spacing:.12em;
  color:var(--mist);
  white-space:nowrap;
  clip-path:polygon(0 0,100% 0,100% 100%,10px 100%,0 calc(100% - 10px));
  transition:border-color .18s var(--ease),color .18s var(--ease),opacity .18s var(--ease);
}
.data-capsule:hover{border-color:var(--orange);color:var(--paper)}
.data-capsule__dot{
  width:6px;
  height:6px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 0 rgba(57,230,208,.55);
  animation:capsule-pulse 2.4s var(--ease) infinite;
}
.data-capsule__tail{color:var(--orange-soft)}
.site-header[data-scrolled="true"] .data-capsule{opacity:0;pointer-events:none}

@keyframes capsule-pulse{
  0%{box-shadow:0 0 0 0 rgba(57,230,208,.55)}
  70%{box-shadow:0 0 0 7px rgba(57,230,208,0)}
  100%{box-shadow:0 0 0 0 rgba(57,230,208,0)}
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  border:1px solid var(--line);
  background:rgba(22,39,60,.6);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--paper);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--orange)}
.nav-toggle[aria-expanded="true"]{border-color:var(--orange);background:rgba(232,106,44,.14)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars i{display:block;height:1px;width:100%;background:var(--paper);transition:transform .18s var(--ease),opacity .18s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.nav-toggle__text{white-space:nowrap}
.nav-toggle__sr{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

/* 主导航 */
.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.5vw,24px);
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(6px,1.1vw,18px);
  counter-reset:navidx;
}
.site-nav__item{counter-increment:navidx}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:8px 2px;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.4;
  letter-spacing:.14em;
  color:var(--mist);
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.site-nav__link::before{
  content:counter(navidx,decimal-leading-zero);
  font-size:9px;
  letter-spacing:.1em;
  color:var(--line);
  transition:color .18s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s var(--ease);
}
.site-nav__link:hover{color:var(--paper)}
.site-nav__link:hover::before{color:var(--orange-soft)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--paper)}
.site-nav__link[aria-current="page"]::before{color:var(--orange)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 20px;
  background:var(--orange);
  color:#150A03;
  font-family:var(--font-sans);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  white-space:nowrap;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.nav-cta:hover{background:var(--orange-soft);transform:translateY(-1px)}

/* 滚动进度 */
.header-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  height:2px;
  width:0;
  background:linear-gradient(90deg,var(--orange),var(--orange-soft));
  box-shadow:0 0 10px rgba(232,106,44,.55);
  transition:width .1s linear;
}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  background:var(--ink-deep);
  color:var(--paper);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(44,63,88,.55) 1px,transparent 1px),
    linear-gradient(90deg,rgba(44,63,88,.55) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.16;
}
.footer-watermark{
  position:absolute;
  right:-8px;
  bottom:-26px;
  font-family:var(--font-display);
  font-size:clamp(88px,15vw,210px);
  font-weight:800;
  line-height:.8;
  letter-spacing:-.03em;
  color:rgba(44,63,88,.32);
  pointer-events:none;
  user-select:none;
}
.footer-shell{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 var(--gutter);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(240px,1.5fr) minmax(110px,.7fr) minmax(110px,.7fr) minmax(230px,1.1fr);
  gap:clamp(24px,4vw,56px);
  padding:clamp(44px,7vw,84px) 0 clamp(28px,4vw,44px);
}

.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.footer-brand__mark{display:inline-flex;align-items:center;gap:10px}
.footer-brand__glyph{
  width:32px;height:32px;
  display:grid;place-items:center;
  background:var(--orange);
  color:var(--ink-deep);
  font-family:var(--font-display);
  font-size:18px;
  font-weight:800;
  line-height:1;
  clip-path:polygon(0 0,100% 0,100% 74%,84% 100%,0 100%);
}
.footer-brand__name{
  font-family:var(--font-display);
  font-size:26px;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--paper);
}
.footer-brand__line{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--mist);
}
.footer-brand__note{
  font-size:13px;
  line-height:1.7;
  color:var(--mist);
  max-width:26ch;
}
.footer-brand__cta{
  margin-top:6px;
  display:inline-flex;
  align-items:center;
  padding:11px 20px;
  border:1px solid var(--line);
  color:var(--paper);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.footer-brand__cta:hover{border-color:var(--orange);color:var(--orange-soft);background:rgba(232,106,44,.1)}

.footer-col__title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  line-height:1.4;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--orange);
  padding-bottom:12px;
  margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.footer-col__list{display:flex;flex-direction:column;gap:2px}
.footer-col__link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  line-height:1.6;
  color:var(--mist);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col__link::before{
  content:"";
  position:absolute;
  left:-12px;
  top:50%;
  width:7px;
  height:1px;
  background:var(--orange);
  opacity:0;
  transform:translateX(-4px);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.footer-col__link:hover{color:var(--paper);transform:translateX(5px)}
.footer-col__link:hover::before{opacity:1;transform:translateX(0)}

.footer-contact__list{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:8px 14px;
  align-items:baseline;
  font-size:13px;
  line-height:1.7;
}
.footer-contact__list dt{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  color:var(--mist);
  opacity:.8;
  white-space:nowrap;
}
.footer-contact__list dd{color:var(--paper);word-break:break-word}
.footer-contact__num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em;color:var(--orange-soft)}

.footer-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px 28px;
  padding:18px 0 30px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.7;
  letter-spacing:.08em;
  color:var(--mist);
}
.footer-bar__note{max-width:62ch}
.footer-bar__legal{color:var(--mist);white-space:nowrap}

/* ---------- 8. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 26px;
  border:1px solid transparent;
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:700;
  line-height:1.4;
  letter-spacing:.04em;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn--primary{
  background:var(--orange);
  color:#150A03;
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.btn--primary:hover{background:var(--orange-soft);transform:translateY(-2px)}
.btn--ghost{
  border-color:var(--line);
  color:var(--paper);
  background:transparent;
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.btn--ghost:hover{border-color:var(--orange);color:var(--orange-soft)}
.btn--quiet{padding:0;background:none;color:var(--orange);font-weight:600}
.btn--quiet:hover{color:var(--orange-soft)}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:18px 0 0;
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.6;
  letter-spacing:.14em;
  color:var(--mist);
}
.breadcrumb a{color:var(--mist);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--orange-soft)}
.breadcrumb__sep{color:var(--line)}
.breadcrumb [aria-current="page"]{color:var(--paper)}

/* ---------- 10. 正文容器 ---------- */
.prose{
  max-width:68ch;
  font-size:16px;
  line-height:1.85;
  color:rgba(245,242,236,.86);
}
.prose > * + *{margin-top:1.05em}
.prose h2{
  font-family:var(--font-display);
  font-size:clamp(1.5rem,2.6vw,2.1rem);
  margin-top:2em;
  color:var(--paper);
}
.prose h3{
  font-family:var(--font-sans);
  font-size:1.12rem;
  font-weight:700;
  letter-spacing:0;
  line-height:1.5;
  margin-top:1.7em;
  color:var(--paper);
}
.prose a{color:var(--orange-soft);border-bottom:1px solid rgba(255,147,88,.4);transition:border-color .18s var(--ease)}
.prose a:hover{border-bottom-color:var(--orange-soft)}
.prose ul{list-style:none}
.prose ul > li{position:relative;padding-left:1.2em}
.prose ul > li + li{margin-top:.5em}
.prose ul > li::before{content:"";position:absolute;left:0;top:.78em;width:7px;height:1px;background:var(--orange)}
.prose ol{list-style:none;counter-reset:proseidx}
.prose ol > li{position:relative;padding-left:2em;counter-increment:proseidx}
.prose ol > li + li{margin-top:.5em}
.prose ol > li::before{
  content:counter(proseidx,decimal-leading-zero);
  position:absolute;left:0;top:.15em;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--orange);
}
.prose strong{color:var(--paper);font-weight:700}
.prose blockquote{
  border-left:2px solid var(--orange);
  padding-left:1.1em;
  color:var(--mist);
}
.prose hr{height:1px;border:0;background:var(--line);margin:2em 0}

/* ---------- 11. 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(150deg,#16273C 0%,#0E1A2B 55%,#060D16 100%);
}
.media-frame::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(44,63,88,.55) 1px,transparent 1px),
    linear-gradient(90deg,rgba(44,63,88,.55) 1px,transparent 1px);
  background-size:clamp(28px,4vw,48px) clamp(28px,4vw,48px);
  opacity:.5;
}
.media-frame:has(> img)::before,
.media-frame:has(> picture)::before{opacity:.16}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:2;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(6,13,22,0) 48%,rgba(6,13,22,.74) 100%);
}
.media-frame > img,
.media-frame > picture > img{
  position:relative;
  z-index:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame__caption{
  position:absolute;
  left:0;
  bottom:0;
  z-index:3;
  max-width:100%;
  padding:10px 14px;
  border-top:1px solid var(--line);
  background:rgba(6,13,22,.78);
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1.6;
  letter-spacing:.14em;
  color:var(--mist);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}

/* ---------- 12. Chip 与 Tag ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border:1px solid var(--line);
  background:rgba(22,39,60,.45);
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.4;
  letter-spacing:.12em;
  color:var(--mist);
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.chip:hover{border-color:var(--orange);color:var(--paper)}
.chip[aria-pressed="true"]{
  background:var(--orange);
  border-color:var(--orange);
  color:#150A03;
}

.tag{
  display:inline-block;
  padding:2px 8px;
  border:1px solid currentColor;
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1.7;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.tag--red{color:var(--red)}
.tag--yellow{color:var(--yellow)}
.tag--cyan{color:var(--cyan)}
.tag--orange{color:var(--orange-soft)}

/* ---------- 13. 显现动效 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1180px){
  .site-nav__link{letter-spacing:.1em;font-size:11px}
  .nav-cta{padding:10px 16px;font-size:12px}
}

@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .data-capsule{display:none}

  .site-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:10px var(--gutter) 24px;
    max-height:calc(100vh - 60px);
    overflow-y:auto;
    background:var(--ink-deep);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .site-nav[data-open]{display:flex}
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .site-nav__item{border-bottom:1px solid rgba(44,63,88,.6)}
  .site-nav__item:last-child{border-bottom:0}
  .site-nav__link{
    display:flex;
    align-items:baseline;
    gap:12px;
    padding:16px 2px;
    font-size:13px;
    letter-spacing:.12em;
    color:var(--paper);
  }
  .site-nav__link::before{font-size:10px;color:var(--orange)}
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{color:var(--orange-soft)}
  .nav-cta{
    margin-top:20px;
    padding:15px 18px;
    font-size:14px;
  }

  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:34px;
  }
  .footer-brand{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
}

@media (max-width:760px){
  .header-rail{min-height:64px}
  .site-header[data-scrolled="true"] .header-rail{min-height:56px}
  .brand-mark__line{display:none}
  .brand-mark__name{font-size:18px}
  .brand-mark__glyph{width:32px;height:32px;font-size:18px}
  .footer-watermark{font-size:88px;bottom:-14px}
  .footer-bar{flex-direction:column;align-items:flex-start}
  .footer-bar__legal{white-space:normal}
}

@media (max-width:620px){
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-contact__list{grid-template-columns:1fr;gap:2px 0}
  .footer-contact__list dt{margin-top:10px}
  .prose{font-size:15px}
}

/* ---------- 15. 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;
  }
  [data-reveal]{opacity:1;transform:none}
  .header-progress{transition:none}
}