/* =========================================================
   美高梅主页 · 共享样式表 /assets/site.css
   基调：夜幕酒店大堂的静谧奢华 —— 墨绿绒面、金铜细线、暖象牙白
   ========================================================= */

/* ---------- 0. 令牌 ---------- */
:root{
  --ink:#14110D;
  --ink-2:#4A443A;
  --ivory:#F7F3E9;
  --ivory-2:#EDE6D6;
  --green:#0F2B24;
  --green-2:#1C4438;
  --green-line:#2E5C4C;
  --gold:#C6A15B;
  --gold-hi:#E3C88E;
  --gold-lo:#8F7134;
  --red:#B33A2B;
  --indigo:#1B3A5C;
  --rail-w:112px;
  --topbar-h:70px;
  --pad-x:clamp(18px,3.4vw,44px);
  --max-w:1240px;
  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
  --sh-card:0 1px 0 rgba(20,17,13,.05),0 18px 30px -26px rgba(15,43,36,.65);
  --sh-lift:0 22px 36px -26px rgba(15,43,36,.85);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 1. 重置与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--ivory);
  background-image:linear-gradient(180deg,rgba(237,230,214,.75),rgba(247,243,233,0) 460px);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:600;letter-spacing:-.5px;line-height:1.28;margin:0}
p{margin:0 0 1em}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--gold-hi);outline-offset:3px;border-radius:1px}
::selection{background:var(--gold);color:#10231D}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 2. 跳转链接 ---------- */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:140;
  transform:translateY(-180%);
  padding:10px 18px;
  background:var(--gold);color:#10231D;
  border:2px solid var(--green);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.1em;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 3. 顶栏 ---------- */
.site-header{display:block}
.brandbar{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;gap:clamp(12px,2vw,26px);
  min-height:var(--topbar-h);
  padding:9px var(--pad-x);
  background-color:var(--green);
  background-image:linear-gradient(180deg,#123428,rgba(15,43,36,.98));
  color:var(--ivory);
  box-shadow:inset 0 -1px 0 var(--gold-lo);
}
.brandbar__mark{
  display:flex;align-items:center;gap:10px;
  padding-left:11px;border-left:3px solid var(--gold);
  color:var(--ivory);
}
.brandbar__mono{
  font-family:var(--font-mono);font-weight:500;font-size:10.5px;letter-spacing:.22em;
  color:var(--gold);border:1px solid rgba(198,161,91,.5);padding:2px 7px;
}
.brandbar__name{font-family:var(--font-display);font-size:19px;letter-spacing:.05em;transition:color .2s var(--ease)}
.brandbar__mark:hover .brandbar__name{color:var(--gold-hi)}
.brandbar__tagline{
  margin:0;padding-left:16px;
  border-left:1px solid rgba(198,161,91,.35);
  font-size:13px;color:rgba(247,243,233,.72);white-space:nowrap;
}
.quickbar{display:flex;align-items:center;gap:20px;margin-left:auto}
.quickbar__item{display:flex;align-items:center}
.quickbar__link{
  font-size:13.5px;color:rgba(247,243,233,.82);
  padding:6px 0;border-bottom:1px solid rgba(198,161,91,.32);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.quickbar__link:hover{color:var(--gold-hi);border-color:var(--gold)}
.quickbar__link--accent{
  padding:7px 15px;border:1px solid var(--gold);
  color:var(--gold-hi);background:rgba(198,161,91,.1);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.quickbar__link--accent:hover{background:var(--gold);color:#10231D}
.scroll-meter{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(198,161,91,.16)}
.scroll-meter__fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold-lo),var(--gold-hi))}

/* ---------- 4. 移动导航按钮 ---------- */
.nav-toggle{
  display:none;align-items:center;gap:9px;margin-left:auto;
  padding:9px 13px;
  background:rgba(198,161,91,.1);
  border:1px solid var(--gold);color:var(--gold-hi);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
}
.nav-toggle__icon{position:relative;display:block;width:18px;height:2px;background:currentColor}
.nav-toggle__icon::before,
.nav-toggle__icon::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle__icon::before{top:-6px}
.nav-toggle__icon::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after{transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__text{line-height:1}

/* ---------- 5. 侧边轨道导航 ---------- */
.rail{
  position:fixed;inset:0 auto 0 0;z-index:70;
  width:var(--rail-w);
  display:flex;flex-direction:column;gap:14px;
  padding:20px 11px 18px;
  background-color:var(--green);
  background-image:
    repeating-linear-gradient(180deg,rgba(255,255,255,.014) 0 2px,rgba(255,255,255,0) 2px 5px),
    linear-gradient(180deg,#0C211C,var(--green) 42%,#123328);
  border-right:1px solid rgba(198,161,91,.38);
  color:var(--ivory);
  overflow-y:auto;
  overscroll-behavior:contain;
}
.rail__seal{
  display:flex;flex-direction:column;align-items:center;gap:9px;
  padding:13px 6px;
  border:1px solid rgba(198,161,91,.45);
  background:rgba(198,161,91,.06);
}
.rail__seal-cn{writing-mode:vertical-rl;font-family:var(--font-display);font-size:15px;letter-spacing:.32em;color:var(--ivory)}
.rail__seal-en{font-family:var(--font-mono);font-size:10px;letter-spacing:.24em;color:var(--gold)}
.rail__caption{
  margin:0;padding-top:11px;
  border-top:1px solid rgba(198,161,91,.3);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;
  color:rgba(198,161,91,.82);
}
.rail__list{display:flex;flex:1 1 auto;flex-direction:column;gap:2px}
.rail__item{display:block}
.rail__link{
  display:block;padding:9px 10px;
  color:rgba(247,243,233,.78);
  border-left:2px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.rail__no{display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--gold-lo)}
.rail__label{display:block;font-size:13.5px;line-height:1.42}
.rail__link:hover{background:rgba(198,161,91,.09);color:var(--ivory)}
.rail__link[aria-current="page"]{
  background:rgba(198,161,91,.14);
  border-left-color:var(--gold);
  color:var(--gold-hi);
}
.rail__link[aria-current="page"] .rail__no{color:var(--gold-hi)}
.rail__foot{margin-top:auto;padding-top:13px;border-top:1px solid rgba(198,161,91,.3)}
.rail__cta{
  display:block;text-align:center;padding:9px 8px;
  background:linear-gradient(180deg,var(--gold-hi),var(--gold));
  border:1px solid var(--gold-lo);color:#10231D;
  font-size:13px;letter-spacing:.06em;
  transition:filter .2s var(--ease);
}
.rail__cta:hover{filter:brightness(1.08)}
.rail-scrim{display:none}

/* ---------- 6. 移动端底部快捷坞 ---------- */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  display:none;grid-template-columns:repeat(3,1fr);
  background:rgba(15,43,36,.97);
  border-top:1px solid rgba(198,161,91,.45);
  backdrop-filter:blur(6px);
}
.dock__link{
  display:block;padding:13px 6px;text-align:center;
  font-size:12.5px;letter-spacing:.06em;
  color:rgba(247,243,233,.86);
  border-right:1px solid rgba(198,161,91,.2);
}
.dock__link:last-child{border-right:0}
.dock__link[aria-current="page"]{color:var(--gold-hi);background:rgba(198,161,91,.14)}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;
  background-color:var(--green);
  background-image:
    repeating-linear-gradient(180deg,rgba(255,255,255,.014) 0 2px,rgba(255,255,255,0) 2px 5px),
    linear-gradient(180deg,#0C211C,var(--green) 45%,#133528);
  color:rgba(247,243,233,.82);
  box-shadow:inset 0 3px 0 var(--gold-lo);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--gold-hi);opacity:.6;
}
.footer__inner{
  max-width:var(--max-w);margin:0 auto;
  padding:clamp(34px,5vw,62px) var(--pad-x) 26px;
  display:grid;gap:38px 40px;
  grid-template-columns:minmax(0,1fr);
}
.footer__brand{min-width:0}
.footer__wordmark{
  display:flex;align-items:center;gap:10px;margin:0 0 10px;
  font-family:var(--font-display);font-size:22px;letter-spacing:.04em;color:var(--ivory);
}
.footer__mono{
  font-family:var(--font-mono);font-weight:500;font-size:10.5px;letter-spacing:.22em;
  color:var(--gold);border:1px solid rgba(198,161,91,.5);padding:2px 7px;
}
.footer__tagline{
  margin:0 0 10px;padding-left:13px;
  border-left:2px solid var(--gold);
  font-size:15px;color:var(--gold-hi);
}
.footer__note{margin:0;max-width:38ch;font-size:13.5px;line-height:1.8;color:rgba(247,243,233,.62)}
.footer__nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer__col{min-width:0}
.footer__col-title{
  margin:0 0 14px;padding-bottom:9px;
  border-bottom:1px solid rgba(198,161,91,.3);
  font-family:var(--font-display);font-size:15.5px;letter-spacing:.04em;color:var(--ivory);
}
.footer__links{display:flex;flex-direction:column;gap:9px}
.footer__link{
  display:inline-block;font-size:13.5px;color:rgba(247,243,233,.76);
  padding-bottom:2px;border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer__link:hover{color:var(--gold-hi);border-color:var(--gold)}
.footer__link[aria-current="page"]{color:var(--gold-hi);border-color:rgba(198,161,91,.6)}
.footer__contact{min-width:0}
.footer__contact-list{display:flex;flex-direction:column}
.footer__contact-row{
  display:grid;grid-template-columns:52px minmax(0,1fr);gap:10px;align-items:start;
  padding:8px 0;font-size:13.5px;
  border-bottom:1px dashed rgba(198,161,91,.22);
}
.footer__label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;color:rgba(198,161,91,.85);padding-top:3px}
.footer__value{color:rgba(247,243,233,.88);word-break:break-word}
.footer__hours{color:var(--gold-hi)}
.footer__meta{
  grid-column:1 / -1;
  display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;justify-content:space-between;
  padding-top:18px;border-top:1px solid rgba(198,161,91,.3);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:rgba(247,243,233,.6);
}
.footer__meta p{margin:0}
.footer__icp{color:rgba(247,243,233,.72)}
.footer__copy{white-space:nowrap}

/* ---------- 8. 布局容器 ---------- */
.wrap{width:100%;max-width:var(--max-w);margin:0 auto;padding-inline:var(--pad-x)}
.section{padding:clamp(38px,6vw,84px) 0}
.section--tight{padding:clamp(24px,4vw,48px) 0}
.split{display:grid;gap:clamp(22px,3.4vw,52px);grid-template-columns:minmax(0,1fr)}
.split__aside{align-self:start;min-width:0}
.split__main{min-width:0}
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.section-head{
  display:grid;gap:8px;
  padding-top:15px;margin-bottom:26px;
  border-top:3px solid var(--green);
}
.section-head__no{font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--gold-lo)}
.section-head__title{font-size:clamp(24px,3vw,30px)}
.section-head__lead{margin:0;max-width:58ch;font-size:15px;color:var(--ink-2)}
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;
  color:var(--gold-lo);
}
.hairline{height:1px;border:0;margin:0;background:linear-gradient(90deg,var(--gold),rgba(198,161,91,.08))}

/* ---------- 9. 档案卡片 ---------- */
.card{
  position:relative;
  padding:22px 22px 20px;
  background:var(--ivory);
  border:1px solid rgba(198,161,91,.5);
  box-shadow:var(--sh-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;width:34px;height:3px;background:var(--gold);
}
.card__no{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--gold-lo)}
.card__title{margin:6px 0 8px;font-family:var(--font-display);font-size:20px}
.card__meta{margin:0;font-size:13px;color:var(--ink-2)}
.card__body{margin:10px 0 0;font-size:14.5px;color:var(--ink-2)}
.card:hover{transform:translateY(-2px);border-color:var(--gold);box-shadow:var(--sh-lift)}
.card--dark{
  background:linear-gradient(180deg,var(--green-2),var(--green));
  border-color:rgba(198,161,91,.45);
  color:var(--ivory);
}
.card--dark .card__title{color:var(--ivory)}
.card--dark .card__meta,
.card--dark .card__body{color:rgba(247,243,233,.74)}
.card--tilt{transform:rotate(-.8deg)}
.card--tilt:hover{transform:rotate(-.8deg) translateY(-2px)}
.card--tilt-alt{transform:rotate(.7deg)}
.card--tilt-alt:hover{transform:rotate(.7deg) translateY(-2px)}

/* ---------- 10. 条目行 / 标签 / 旁注 ---------- */
.ledger{border-top:1px solid rgba(15,43,36,.18)}
.ledger__row{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:16px;align-items:center;min-height:56px;
  padding:10px 4px;
  border-bottom:1px solid rgba(15,43,36,.14);
  color:inherit;
  transition:background .2s var(--ease);
}
.ledger__row:hover{background:var(--ivory-2)}
.ledger__no{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--gold-lo)}
.ledger__title{font-size:15.5px;line-height:1.6}
.ledger__tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--ink-2);white-space:nowrap}
.tag{
  display:inline-block;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;line-height:1.7;
  padding:2px 9px;border:1px solid currentColor;
}
.tag--gold{color:var(--gold-lo);border-color:rgba(198,161,91,.6);background:rgba(198,161,91,.08)}
.tag--indigo{color:var(--indigo);border-color:rgba(27,58,92,.45);background:rgba(27,58,92,.06)}
.tag--red{color:var(--red);border-color:rgba(179,58,43,.45);background:rgba(179,58,43,.07)}
.note{
  padding:14px 16px;
  border-left:3px solid var(--gold);
  background:var(--ivory-2);
  font-size:14px;line-height:1.78;color:var(--ink-2);
}
.note--margin{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.02em}

/* ---------- 11. 按钮 ---------- */
.btn{
  display:inline-block;
  padding:11px 21px;
  font-size:14.5px;letter-spacing:.04em;
  background:var(--green);color:var(--ivory);
  border:1px solid var(--green);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{background:var(--green-2)}
.btn--gold{
  background:linear-gradient(180deg,var(--gold-hi),var(--gold));
  border-color:var(--gold-lo);color:#10231D;
}
.btn--gold:hover{filter:brightness(1.07);background:linear-gradient(180deg,var(--gold-hi),var(--gold))}
.btn--ghost{background:transparent;color:var(--green);border-color:rgba(15,43,36,.42)}
.btn--ghost:hover{background:rgba(15,43,36,.06)}
.btn--ghost-light{background:transparent;color:var(--gold-hi);border-color:rgba(198,161,91,.6)}
.btn--ghost-light:hover{background:rgba(198,161,91,.12)}

/* ---------- 12. 面包屑与正文 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:16px 0;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--ink-2);
}
.crumbs__link{color:var(--gold-lo)}
.crumbs__link:hover{color:var(--gold);text-decoration:underline}
.crumbs__sep{color:rgba(198,161,91,.6)}
.crumbs__current{color:var(--ink)}
.prose{max-width:70ch;font-size:16px}
.prose h2{
  margin:38px 0 12px;padding-top:14px;
  border-top:1px solid rgba(198,161,91,.5);
  font-size:clamp(21px,2.4vw,26px);
}
.prose h3{margin:26px 0 8px;font-size:19px}
.prose li{position:relative;padding-left:20px;margin:7px 0}
.prose li::before{content:"";position:absolute;left:0;top:.85em;width:9px;height:1px;background:var(--gold)}
.prose blockquote{
  margin:24px 0;padding:6px 0 6px 18px;
  border-left:3px solid var(--gold);
  color:var(--ink-2);
}

/* ---------- 13. 图片容器（页面阶段放置占位图） ---------- */
.media{margin:0}
.media__frame{
  position:relative;overflow:hidden;
  aspect-ratio:4 / 3;
  border:1px solid rgba(198,161,91,.5);
  background-color:var(--green);
  background-image:linear-gradient(135deg,rgba(198,161,91,.26),rgba(15,43,36,.92) 68%);
}
.media__frame::after{
  content:"";position:absolute;inset:10px;
  border:1px solid rgba(198,161,91,.28);
  pointer-events:none;
}
.media__frame--wide{aspect-ratio:16 / 9}
.media__frame--tall{aspect-ratio:3 / 4}
.media__frame--square{aspect-ratio:1 / 1}
.media__img{width:100%;height:100%;object-fit:cover}
.media__caption{
  margin-top:9px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--ink-2);
}
.media--dark .media__caption{color:rgba(247,243,233,.72)}

/* ---------- 14. 标签页（同级内容切换） ---------- */
.tabs{display:grid}
.tabs__list{
  display:flex;gap:0;overflow-x:auto;
  border-bottom:1px solid rgba(198,161,91,.45);
  scrollbar-width:thin;
}
.tabs__tab{
  flex:0 0 auto;
  padding:11px 20px;
  border-bottom:2px solid transparent;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.12em;
  color:var(--ink-2);
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.tabs__tab:hover{color:var(--ink);background:rgba(198,161,91,.08)}
.tabs__tab[aria-selected="true"]{
  color:var(--green);background:rgba(198,161,91,.14);
  border-bottom-color:var(--gold);
}
.tabs__panel{padding:24px 0 0}
.tabs__panel[hidden]{display:none}

/* ---------- 15. 显现动效 ---------- */
.has-js [data-reveal]{
  opacity:0;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.has-js [data-reveal].is-visible{opacity:1;transform:none}
.has-js .hairline[data-reveal]{
  opacity:1;transform:scaleX(0);transform-origin:left center;
  transition:transform .48s var(--ease);
}
.has-js .hairline[data-reveal].is-visible{transform:scaleX(1)}

/* ---------- 16. 断点 ---------- */
@media (min-width:900px){
  body{padding-left:var(--rail-w)}
  .nav-toggle{display:none}
  .split{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
  .split--5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
  .split--3-9{grid-template-columns:minmax(0,3fr) minmax(0,9fr)}
}
@media (min-width:1024px){
  .footer__inner{grid-template-columns:minmax(220px,1fr) minmax(0,1.9fr) minmax(230px,1fr)}
}
@media (min-width:1280px){
  :root{--rail-w:122px}
  .rail__label{font-size:14px}
}
@media (max-width:1023px){
  .footer__inner{grid-template-columns:minmax(0,1fr)}
  .footer__nav{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:899px){
  body{padding-bottom:60px}
  .brandbar__tagline{display:none}
  .quickbar{display:none}
  .nav-toggle{display:inline-flex}
  .dock{display:grid}
  .rail{
    width:min(84vw,312px);
    padding:22px 18px 26px;
    transform:translateX(-100%);
    transition:transform .24s var(--ease);
    box-shadow:18px 0 44px -22px rgba(0,0,0,.65);
  }
  .rail[data-open="true"]{transform:translateX(0)}
  .rail__label{font-size:16px}
  .rail__link{padding:12px 12px}
  .rail__cta{padding:12px 8px;font-size:14.5px}
  .rail-scrim{
    display:block;position:fixed;inset:0;z-index:65;
    background:rgba(9,20,17,.62);
    opacity:0;pointer-events:none;
    transition:opacity .24s var(--ease);
  }
  .rail[data-open="true"] + .rail-scrim{opacity:1;pointer-events:auto}
}
@media (max-width:760px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9{grid-column:1 / -1}
  .footer__nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .footer__meta{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:480px){
  .brandbar__name{font-size:17px}
  .card{padding:18px 16px}
}

/* ---------- 17. 无动画偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js [data-reveal],
  .has-js .hairline[data-reveal]{opacity:1;transform:none}
  .rail{transition:none}
  .skip-link{transition:none}
}