/* ============================================================
   欧皇体育主站 · 共享样式表  /assets/site.css
   西域夜幕 · 技术蓝图 · 金紫档案
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#120B1F;
  --night:#1A102E;
  --deep:#2B1B4A;
  --gold:#D4AF37;
  --mist:#E8D9A8;
  --ochre:#A65A2E;
  --glacier:#9FD8D2;
  --paper:#F5F0E6;
  --violet-gray:#4A3B63;
  --state-ok:#3E8E7E;

  --line-gold:rgba(212,175,55,.32);
  --line-mist:rgba(232,217,168,.16);
  --line-ice:rgba(159,216,210,.22);

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --font-data:"IBM Plex Mono","JetBrains Mono","SFMono-Regular",Consolas,"Courier New",monospace;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
  --shell:1440px;
  --gutter:clamp(16px,4vw,48px);
  --gap:clamp(16px,2.4vw,32px);

  --slant:polygon(0 0,100% 0,100% calc(100% - 22px),0 100%);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:110px;
}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--paper);
  background-color:var(--night);
  background-image:
    linear-gradient(rgba(159,216,210,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(159,216,210,.045) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0 0 .5em;
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.25;
  letter-spacing:.02em;
  color:var(--paper);
}
p{margin:0 0 1em;}
img,svg,video{max-width:100%;height:auto;}
a{color:var(--glacier);}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
button{font:inherit;color:inherit;}
:focus-visible{
  outline:2px solid var(--glacier);
  outline-offset:3px;
  border-radius:2px;
}

/* ---------- 3. 布局骨架 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
@media (max-width:900px){
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));}
}
@media (max-width:560px){
  .grid-12{grid-template-columns:repeat(2,minmax(0,1fr));}
}
.section{padding-block:clamp(32px,5vw,64px);}
.section__head{max-width:820px;margin-bottom:clamp(20px,3vw,36px);}
.section__title{
  margin:0 0 12px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(24px,3.4vw,40px);
  letter-spacing:.02em;
  color:var(--paper);
  text-shadow:0 0 30px rgba(212,175,55,.18);
}
.section__note{
  margin:0;
  max-width:66ch;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(245,240,230,.7);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0 0 12px;
  font-family:var(--font-data);
  font-size:11px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--glacier);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--glacier);
  opacity:.7;
}
.hairline{
  height:1px;
  border:0;
  margin:clamp(28px,4vw,48px) 0;
  background:linear-gradient(90deg,var(--line-gold),transparent 72%);
}

/* ---------- 4. 跳过链接 ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-90px;
  z-index:200;
  padding:10px 18px;
  background:var(--gold);
  color:var(--ink);
  font-weight:700;
  font-size:14px;
  text-decoration:none;
  border-radius:2px;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:10px;}

/* ---------- 5. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(26,16,46,.98) 0%,rgba(26,16,46,.94) 100%);
  border-bottom:1px solid var(--line-gold);
  box-shadow:0 24px 48px -36px rgba(0,0,0,.95);
  backdrop-filter:blur(8px);
}
.status-strip{
  background:var(--ink);
  border-bottom:1px solid rgba(232,217,168,.12);
}
.status-strip__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  max-width:var(--shell);
  margin-inline:auto;
  padding:5px var(--gutter);
  font-family:var(--font-data);
  font-size:11px;
  letter-spacing:.14em;
  color:rgba(232,217,168,.82);
}
.status-strip__clock{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0;
  min-width:0;
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
}
.status-strip__dot{
  flex:0 0 auto;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--state-ok);
  box-shadow:0 0 0 3px rgba(62,142,126,.22);
}
.status-strip__link{
  flex:0 0 auto;
  color:var(--glacier);
  font-size:11px;
  letter-spacing:.1em;
  text-decoration:none;
  white-space:nowrap;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.status-strip__link:hover,
.status-strip__link:focus-visible{
  color:var(--gold);
  border-bottom-color:var(--gold);
}

.command-bar__inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,26px);
  padding-block:9px;
}

/* 品牌锁定 */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--paper);
}
.brand__crest{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  flex:0 0 auto;
  font-family:var(--font-display);
  font-weight:900;
  font-size:21px;
  line-height:1;
  color:var(--ink);
  background:linear-gradient(150deg,var(--mist) 0%,var(--gold) 52%,var(--ochre) 100%);
  clip-path:polygon(50% 0,100% 22%,100% 74%,50% 100%,0 74%,0 22%);
  transition:transform .24s var(--ease),filter .24s var(--ease);
}
.brand:hover .brand__crest{transform:translateY(-1px);filter:brightness(1.1);}
.brand__stack{display:flex;flex-direction:column;gap:3px;line-height:1;}
.brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:19px;
  letter-spacing:.08em;
  color:var(--paper);
  text-shadow:0 0 22px rgba(212,175,55,.28);
}
.brand__sub{
  font-family:var(--font-data);
  font-size:9px;
  letter-spacing:.34em;
  color:rgba(232,217,168,.6);
}
.brand__note{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  line-height:1;
  padding-left:9px;
  border-left:1px solid var(--line-mist);
  font-family:var(--font-data);
  font-size:9px;
  letter-spacing:.1em;
  color:var(--mist);
  opacity:.85;
}

/* 命令栏导航 */
.cmd-nav{margin-left:auto;}
.cmd-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(2px,.9vw,14px);
  margin:0;
  padding:0;
  list-style:none;
}
.cmd-nav__item{flex:0 0 auto;}
.cmd-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:9px 7px;
  font-size:14px;
  letter-spacing:.03em;
  color:rgba(245,240,230,.7);
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.cmd-nav__link::after{
  content:"";
  position:absolute;
  left:7px;
  right:7px;
  bottom:2px;
  height:2px;
  background:linear-gradient(90deg,var(--gold),var(--ochre));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .26s var(--ease);
}
.cmd-nav__link:hover{color:var(--mist);}
.cmd-nav__link:hover::after{transform:scaleX(1);}
.cmd-nav__idx{
  font-family:var(--font-data);
  font-size:9px;
  letter-spacing:.06em;
  color:var(--glacier);
  opacity:.55;
  transition:opacity .2s var(--ease);
}
.cmd-nav__link:hover .cmd-nav__idx,
.cmd-nav__link[aria-current="page"] .cmd-nav__idx{opacity:1;}
.cmd-nav__link[aria-current="page"]{
  color:var(--gold);
  font-weight:600;
}
.cmd-nav__link[aria-current="page"]::after{transform:scaleX(1);}
.cmd-nav__link[aria-current="page"]::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:4px;
  height:4px;
  margin-top:-2px;
  border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 8px var(--gold);
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  margin-left:auto;
  padding:9px 14px;
  background:rgba(43,27,74,.9);
  color:var(--mist);
  border:1px solid var(--line-gold);
  border-radius:2px;
  font-family:var(--font-data);
  font-size:12px;
  letter-spacing:.16em;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--deep);color:var(--gold);border-color:var(--gold);}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;
  height:10px;
  flex:0 0 auto;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:1.5px;
  background:currentColor;
  transition:transform .26s var(--ease);
}
.nav-toggle__bars::before{top:0;}
.nav-toggle__bars::after{bottom:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(4.25px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-4.25px) rotate(-45deg);}
.nav-toggle__label{font-size:11px;letter-spacing:.2em;}

/* ---------- 6. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:1px solid transparent;
  border-radius:2px;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.4;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .24s var(--ease),
             background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--gold{
  background:linear-gradient(135deg,var(--mist) 0%,var(--gold) 60%,#b8912a 100%);
  color:var(--ink);
  box-shadow:0 10px 26px -14px rgba(212,175,55,.9);
}
.btn--gold:hover{
  transform:translateY(-1px);
  box-shadow:0 16px 34px -14px rgba(212,175,55,.95);
}
.btn--ghost{
  background:transparent;
  border-color:var(--line-gold);
  color:var(--mist);
}
.btn--ghost:hover{
  background:rgba(212,175,55,.08);
  border-color:var(--gold);
  color:var(--gold);
}
.btn--sm{padding:8px 14px;font-size:13px;}
.cmd-cta{flex:0 0 auto;white-space:nowrap;}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,110px);
  background:linear-gradient(180deg,var(--night) 0%,var(--ink) 100%);
  border-top:1px solid var(--line-gold);
  color:rgba(245,240,230,.78);
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr .95fr .75fr 1.1fr;
  gap:clamp(24px,3.4vw,52px);
  align-items:start;
  padding-block:clamp(40px,6vw,76px);
}
.footer-col{min-width:0;}
.footer-title{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 16px;
  font-family:var(--font-data);
  font-size:11px;
  font-weight:600;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
}
.footer-title::before{
  content:"";
  width:3px;
  height:12px;
  flex:0 0 auto;
  background:var(--gold);
}
.footer-text{
  max-width:34ch;
  margin:0 0 14px;
  font-size:13.5px;
  line-height:1.8;
  color:rgba(245,240,230,.66);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.footer-brand__crest{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  flex:0 0 auto;
  font-family:var(--font-display);
  font-weight:900;
  font-size:20px;
  color:var(--ink);
  background:linear-gradient(150deg,var(--mist),var(--gold) 55%,var(--ochre));
  clip-path:polygon(50% 0,100% 22%,100% 74%,50% 100%,0 74%,0 22%);
}
.footer-brand__name{
  display:block;
  font-family:var(--font-display);
  font-weight:900;
  font-size:18px;
  letter-spacing:.08em;
  color:var(--paper);
}
.footer-brand__note{
  display:block;
  margin-top:4px;
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.28em;
  color:var(--mist);
  opacity:.7;
}
.footer-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 10px;
  border:1px solid var(--line-gold);
  border-radius:2px;
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--mist);
}
.footer-badge::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--state-ok);
}
.footer-col--feedback{
  padding:clamp(16px,2vw,24px);
  background:rgba(43,27,74,.55);
  border:1px solid var(--line-gold);
  clip-path:var(--slant);
}
.footer-action{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:10px 12px;
  margin-bottom:8px;
  border:1px solid var(--line-mist);
  border-radius:2px;
  font-size:13px;
  color:var(--mist);
  text-decoration:none;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.footer-action::after{
  content:"→";
  font-family:var(--font-data);
  color:var(--gold);
  transition:transform .2s var(--ease);
}
.footer-action:hover{
  background:rgba(212,175,55,.1);
  border-color:var(--gold);
  color:var(--paper);
}
.footer-action:hover::after{transform:translateX(3px);}
.footer-action--quiet{
  padding-inline:0;
  border-color:transparent;
  background:transparent;
  color:rgba(159,216,210,.82);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
}
.footer-links__link{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  padding:7px 0;
  font-size:13.5px;
  color:rgba(245,240,230,.7);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-links__link:hover{
  color:var(--gold);
  border-bottom-color:rgba(212,175,55,.4);
}
.footer-links__idx{
  font-family:var(--font-data);
  font-size:9px;
  letter-spacing:.08em;
  color:var(--glacier);
  opacity:.5;
}
.contact-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin:0;
  padding:0;
  list-style:none;
}
.contact-list__item{display:flex;flex-direction:column;gap:2px;}
.contact-list__label{
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.22em;
  color:var(--glacier);
  opacity:.75;
}
.contact-list__value{
  font-size:13.5px;
  line-height:1.6;
  color:rgba(245,240,230,.86);
  overflow-wrap:anywhere;
}
.footer-bottom{
  background:rgba(18,11,31,.6);
  border-top:1px solid rgba(232,217,168,.14);
}
.footer-bottom__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-block:16px;
  font-family:var(--font-data);
  font-size:11px;
  letter-spacing:.1em;
  color:rgba(232,217,168,.55);
}
.footer-legal{margin:0;}
.footer-legal__sep{margin-inline:8px;color:rgba(232,217,168,.32);}

/* ---------- 8. 内容组件 ---------- */
.breadcrumb{
  padding-block:14px;
  border-bottom:1px solid rgba(232,217,168,.12);
  font-family:var(--font-data);
  font-size:11px;
  letter-spacing:.12em;
}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0;
  padding:0;
  list-style:none;
}
.breadcrumb__item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:rgba(232,217,168,.55);
}
.breadcrumb__item + .breadcrumb__item::before{
  content:"/";
  color:var(--violet-gray);
}
.breadcrumb__link{
  color:rgba(232,217,168,.78);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.breadcrumb__link:hover{color:var(--gold);}
.breadcrumb__current{color:var(--gold);}

.doc-body{
  max-width:820px;
  font-size:15.5px;
  line-height:1.9;
  color:rgba(245,240,230,.84);
}
.doc-body h2{
  margin-top:2em;
  font-size:clamp(20px,2.4vw,26px);
  color:var(--paper);
}
.doc-body h3{
  margin-top:1.8em;
  font-size:18px;
  color:var(--mist);
}
.doc-body p{margin:0 0 1.1em;}
.doc-body ul,
.doc-body ol{padding-left:1.3em;margin:0 0 1.2em;}
.doc-body li{margin-bottom:.5em;}
.doc-body strong{color:var(--gold);font-weight:700;}
.doc-body a{
  color:var(--glacier);
  text-decoration:underline;
  text-underline-offset:3px;
}

.panel{
  position:relative;
  padding:clamp(18px,2.4vw,30px);
  background:rgba(43,27,74,.6);
  border:1px solid var(--line-mist);
  border-radius:2px;
}
.panel--paper{
  background:var(--paper);
  color:var(--ink);
  border-color:rgba(18,11,31,.15);
  box-shadow:8px 8px 0 rgba(18,11,31,.35);
}
.panel--paper .panel__label{color:var(--ochre);}
.panel__label{
  display:block;
  margin-bottom:10px;
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--glacier);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  border:1px solid currentColor;
  border-radius:2px;
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.16em;
  line-height:1.6;
}
.tag--gold{color:var(--gold);}
.tag--glacier{color:var(--glacier);}
.tag--ochre{color:var(--ochre);background:rgba(166,90,46,.16);border-color:rgba(166,90,46,.5);}
.tag--ok{color:var(--state-ok);}

.media-frame{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  border:1px solid var(--line-mist);
  border-radius:2px;
  background:
    linear-gradient(160deg,rgba(43,27,74,.92) 0%,rgba(26,16,46,.96) 100%),
    repeating-linear-gradient(90deg,rgba(159,216,210,.09) 0 1px,transparent 1px 32px);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:10px;
  border:1px solid rgba(232,217,168,.12);
  pointer-events:none;
}
.media-frame__img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame__caption{
  position:absolute;
  left:0;
  bottom:0;
  z-index:2;
  padding:6px 12px;
  background:rgba(18,11,31,.82);
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--mist);
}
.media-frame--wide{aspect-ratio:16/9;}
.media-frame--tall{aspect-ratio:3/4;}
.media-frame--slant{
  clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),0 100%);
}

/* ---------- 9. JS 注入元素 ---------- */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  z-index:90;
  width:0;
  height:2px;
  pointer-events:none;
  background:linear-gradient(90deg,var(--ochre),var(--gold) 45%,var(--glacier));
  box-shadow:0 0 12px rgba(212,175,55,.6);
}
.to-top{
  position:fixed;
  right:clamp(14px,2.4vw,28px);
  bottom:clamp(14px,2.4vw,28px);
  z-index:80;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  gap:2px;
  padding:10px 12px;
  background:rgba(26,16,46,.94);
  color:var(--mist);
  border:1px solid var(--line-gold);
  border-radius:2px;
  font-family:var(--font-data);
  font-size:12px;
  line-height:1;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),
             visibility .24s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.to-top[data-visible]{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.to-top:hover{color:var(--gold);border-color:var(--gold);}
.to-top__label{font-size:9px;letter-spacing:.2em;}

html[data-js="on"] [data-reveal]{
  opacity:0;
  transform:translateY(14px);
}
html[data-js="on"] [data-reveal][data-revealed]{
  opacity:1;
  transform:none;
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}

/* ---------- 10. 响应式 ---------- */
@media (max-width:1200px){
  .cmd-nav__list{gap:2px;}
  .cmd-nav__link{padding:9px 5px;font-size:13.5px;}
}
@media (max-width:1023px){
  html{scroll-padding-top:96px;}
  .command-bar__inner{flex-wrap:wrap;row-gap:6px;}
  .nav-toggle{display:inline-flex;}
  .cmd-cta{display:none;}
  .cmd-nav{
    display:none;
    order:9;
    flex:1 0 100%;
    margin-left:0;
  }
  .cmd-nav[data-open]{display:block;}
  .cmd-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding-top:8px;
    border-top:1px solid var(--line-mist);
  }
  .cmd-nav__item{width:100%;}
  .cmd-nav__link{
    width:100%;
    padding:13px 4px 13px 16px;
    font-size:15px;
    border-bottom:1px dashed rgba(74,59,99,.75);
  }
  .cmd-nav__link::after{left:4px;right:4px;bottom:0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:620px){
  .brand__note{display:none;}
  .status-strip__inner{font-size:10px;letter-spacing:.06em;}
  .status-strip__clock{max-width:58%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom__inner{flex-direction:column;align-items:flex-start;}
  html{scroll-padding-top:90px;}
}

/* ---------- 11. 无障碍与降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html[data-js="on"] [data-reveal]{
    opacity:1;
    transform:none;
  }
}