/* ===========================================================
   皇家8828 · 共享站点样式 /assets/site.css
   数字藏馆：暖米白纸纹 + 深紫档案大厅 + 鎏金刻度
   =========================================================== */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--bar-h) + 1.5rem);
}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------- 2. 变量 ---------- */
:root{
  --ink:#16121B;
  --purple:#2E1B4F;
  --purple-mid:#4A2C7A;
  --gold:#C9A227;
  --gold-light:#E7CE7B;
  --ivory:#F6F1E7;
  --index-ivory:#EDE5D6;
  --celadon:#2F7A63;
  --celadon-light:#DCE9E2;
  --muted:#6B6274;

  --font-display:"Songti SC","STSong","SimSun","Noto Serif SC",serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Condensed","SFMono-Regular",Consolas,"Courier New",monospace;

  --bar-h:64px;
  --wrap:1240px;
  --gut:clamp(1rem,4vw,3.5rem);
  --gap:clamp(1.25rem,3vw,2.5rem);
  --rule:1.5px;
}

/* ---------- 3. 基底与中文排版 ---------- */
body{
  font-family:var(--font-body);
  font-size:clamp(1rem,1.4vw,1.125rem);
  line-height:1.75;
  color:var(--ink);
  background-color:var(--ivory);
  background-image:
    radial-gradient(rgba(22,18,27,.055) .5px,transparent .5px),
    radial-gradient(rgba(22,18,27,.032) .5px,transparent .5px);
  background-size:6px 6px,11px 11px;
  background-position:0 0,3px 5px;
  min-height:100vh;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
}
h1{font-size:clamp(2.4rem,6vw,5rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem)}
h3{font-size:clamp(1.2rem,2vw,1.5rem)}
strong,b{font-weight:700}
::selection{background:var(--gold);color:var(--purple)}

/* ---------- 4. 焦点与可访问性 ---------- */
:focus-visible{
  outline:2px solid var(--celadon);
  outline-offset:3px;
}
.cmdbar :focus-visible,
.footer :focus-visible,
.frame--purple :focus-visible{
  outline:2px solid var(--gold-light);
  outline-offset:3px;
}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.skip-link{
  position:fixed;top:-120%;left:1rem;z-index:200;
  display:inline-block;
  padding:.75rem 1.15rem;
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.12em;
  background:var(--gold);
  color:var(--ink);
  border:var(--rule) solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  text-decoration:none;
  transition:top .18s ease;
}
.skip-link:focus{top:.75rem}

/* ---------- 5. 通用容器 / 文本 ---------- */
.container{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gut);
}
.prose{max-width:38em;font-size:clamp(1rem,1.4vw,1.125rem);line-height:1.8}
.prose p+p{margin-top:1em}
.prose a{color:var(--purple-mid);text-decoration:underline;text-underline-offset:.2em}
.prose a:hover{color:var(--celadon)}
.mono-label,.eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.mono-label::before,.eyebrow::before{
  content:"";width:12px;height:1px;background:var(--gold);flex:none;
}
.keyline{
  display:block;width:100%;height:1px;border:0;
  background:linear-gradient(90deg,var(--gold) 0%,var(--gold) 22%,rgba(22,18,27,.18) 22%,rgba(22,18,27,.18) 100%);
  margin-block:clamp(1.5rem,3vw,2.5rem);
}
.stack>*+*{margin-top:var(--stack,1rem)}
.cluster{display:flex;flex-wrap:wrap;gap:.65rem;align-items:center}

/* ---------- 6. 网格 ---------- */
.grid{display:grid;gap:var(--gap)}
.grid--split{
  grid-template-columns:minmax(0,1.95fr) minmax(0,.95fr);
  align-items:start;
}
.grid--split>.grid__aside{
  border-left:1px solid rgba(201,162,39,.55);
  padding-left:clamp(1rem,2vw,1.6rem);
}
.grid--magazine{grid-template-columns:repeat(12,minmax(0,1fr))}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}

/* ---------- 7. 框景与刻度 ---------- */
.frame{
  position:relative;
  border:var(--rule) solid var(--ink);
  background:var(--ivory);
  padding:clamp(1.25rem,3vw,2.5rem);
}
.frame::after{
  content:"";position:absolute;inset:-7px;pointer-events:none;
  background:
    linear-gradient(var(--gold),var(--gold)) left top/12px 1.5px no-repeat,
    linear-gradient(var(--gold),var(--gold)) left top/1.5px 12px no-repeat,
    linear-gradient(var(--gold),var(--gold)) right top/12px 1.5px no-repeat,
    linear-gradient(var(--gold),var(--gold)) right top/1.5px 12px no-repeat,
    linear-gradient(var(--gold),var(--gold)) left bottom/12px 1.5px no-repeat,
    linear-gradient(var(--gold),var(--gold)) left bottom/1.5px 12px no-repeat,
    linear-gradient(var(--gold),var(--gold)) right bottom/12px 1.5px no-repeat,
    linear-gradient(var(--gold),var(--gold)) right bottom/1.5px 12px no-repeat;
}
.frame--purple{
  background:var(--purple);
  color:var(--ivory);
  border-color:var(--gold);
}
.frame__label{
  position:absolute;top:calc(var(--rule) * -1);left:calc(var(--rule) * -1);
  padding:.28rem .6rem;
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.18em;
  background:var(--gold);
  color:var(--ink);
  border-right:var(--rule) solid var(--ink);
  border-bottom:var(--rule) solid var(--ink);
}

/* ---------- 8. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.7rem 1.15rem;
  font-size:.92rem;font-weight:700;line-height:1.2;
  border:var(--rule) solid var(--ink);
  background:transparent;
  color:var(--ink);
  text-decoration:none;
  cursor:pointer;
  box-shadow:3px 3px 0 var(--ink);
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease;
}
.btn:hover{transform:translate(-1px,-1px);box-shadow:5px 5px 0 var(--ink)}
.btn:active{transform:translate(1px,1px);box-shadow:1px 1px 0 var(--ink)}
.btn--gold{background:var(--gold);color:var(--ink)}
.btn--gold:hover{background:var(--gold-light)}
.btn--celadon{background:var(--celadon);color:var(--ivory);border-color:var(--ink);box-shadow:3px 3px 0 var(--ink)}
.btn--celadon:hover{background:#276a55}
.btn--ghost{background:transparent;box-shadow:none;border-color:currentColor}
.btn--ghost:hover{background:rgba(201,162,39,.16);box-shadow:none;transform:none}

/* ---------- 9. 面包屑 ---------- */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--muted);
  margin-bottom:clamp(1rem,2vw,1.75rem);
}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:.45rem}
.breadcrumbs__link{color:var(--muted);text-decoration:none;border-bottom:1px solid transparent}
.breadcrumbs__link:hover{color:var(--celadon);border-bottom-color:var(--celadon)}
.breadcrumbs__sep{color:var(--gold);font-size:.7rem}
.breadcrumbs [aria-current="page"]{color:var(--ink);font-weight:600}

/* ---------- 10. 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  aspect-ratio:16/10;
  border:var(--rule) solid var(--ink);
  background-color:var(--index-ivory);
  background-image:
    repeating-linear-gradient(45deg,rgba(22,18,27,.05) 0 1px,transparent 1px 9px);
  overflow:hidden;
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__img{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
}
.media-frame__caption{
  margin-top:.55rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.06em;
  color:var(--muted);
  line-height:1.6;
}

/* ---------- 11. 筛选标签 ---------- */
.chip-group{
  display:flex;flex-wrap:wrap;gap:.5rem;
  align-items:center;
}
.chip{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.1em;
  padding:.42rem .72rem;
  border:var(--rule) solid var(--ink);
  background:transparent;
  color:var(--ink);
  cursor:pointer;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:var(--index-ivory)}
.chip[aria-pressed="true"]{
  background:var(--celadon-light);
  border-color:var(--celadon);
  color:#1d4c3e;
  font-weight:700;
}

/* ---------- 12. 显现动画 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .4s ease,transform .4s ease;
}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ===========================================================
   13. 命令栏 header
   =========================================================== */
.cmdbar{
  position:sticky;top:0;z-index:80;
  background-color:var(--purple);
  background-image:
    radial-gradient(rgba(246,241,231,.05) .5px,transparent .5px);
  background-size:7px 7px;
  color:var(--ivory);
  border-bottom:var(--rule) solid var(--gold);
  box-shadow:0 3px 0 rgba(22,18,27,.28);
}
.cmdbar__progress{
  position:absolute;left:0;bottom:-2px;
  width:100%;height:2px;
  background:linear-gradient(90deg,var(--gold),var(--gold-light));
  transform:scaleX(0);
  transform-origin:left center;
  pointer-events:none;
}
.cmdbar__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  column-gap:clamp(.75rem,2vw,2rem);
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gut);
  min-height:var(--bar-h);
  transition:min-height .2s ease;
}
.cmdbar[data-scrolled]{--bar-h:54px}

/* 品牌 */
.cmdbar__brand{
  display:flex;align-items:center;gap:.7rem;
  text-decoration:none;color:inherit;
  min-width:0;
}
.cmdbar__seal{
  display:grid;place-items:center;
  width:36px;height:36px;flex:none;
  background:var(--gold);
  color:var(--purple);
  box-shadow:inset 0 0 0 3px var(--purple),0 0 0 1.5px var(--gold-light);
}
.cmdbar__seal-char{
  font-family:var(--font-display);
  font-size:1.02rem;
  font-weight:800;
  line-height:1;
}
.cmdbar__wordmark{display:flex;flex-direction:column;gap:.1rem;min-width:0}
.cmdbar__name{
  font-family:var(--font-display);
  font-size:1.16rem;
  font-weight:800;
  letter-spacing:.04em;
  line-height:1.15;
  white-space:nowrap;
}
.cmdbar__tagline{
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.16em;
  color:var(--gold-light);
  opacity:.85;
  white-space:nowrap;
}
.cmdbar[data-scrolled] .cmdbar__tagline{display:none}

/* 导航 */
.cmdbar__nav{min-width:0}
.cmdbar__list{display:flex;align-items:stretch;flex-wrap:wrap}
.cmdbar__item{display:flex}
.cmdbar__link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:.42rem;
  padding:.55rem .68rem;
  font-size:.88rem;
  line-height:1.3;
  color:rgba(246,241,231,.8);
  text-decoration:none;
  transition:background-color .16s ease,color .16s ease;
}
.cmdbar__link:hover{color:var(--ivory);background:var(--purple-mid)}
.cmdbar__idx{
  font-family:var(--font-mono);
  font-size:.6rem;
  letter-spacing:.1em;
  color:var(--gold);
  opacity:.9;
}
.cmdbar__link[aria-current="page"]{
  color:var(--gold-light);
  background:rgba(201,162,39,.16);
  font-weight:600;
}
.cmdbar__link[aria-current="page"]::after{
  content:"";position:absolute;left:.68rem;right:.68rem;bottom:.12rem;
  height:2px;background:var(--gold);
}

/* 右侧工具 */
.cmdbar__tools{
  display:flex;align-items:center;gap:.55rem;
  justify-self:end;
}
.cmdbar__channel{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.22rem .5rem;
  border:1px solid rgba(231,206,123,.42);
  font-family:var(--font-mono);
  font-size:.6rem;
  letter-spacing:.14em;
  white-space:nowrap;
}
.cmdbar__channel-key{color:rgba(246,241,231,.6)}
.cmdbar__channel-val{color:var(--gold-light);font-weight:700;transition:color .18s ease}
html[data-version="new"] .cmdbar__channel-val{color:var(--celadon-light)}
.cmdbar__versions{display:inline-flex;border:var(--rule) solid var(--gold)}
.cmdbar__version{
  padding:.3rem .55rem;
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.1em;
  color:var(--gold-light);
  cursor:pointer;
  transition:background-color .16s ease,color .16s ease;
}
.cmdbar__version+.cmdbar__version{border-left:var(--rule) solid var(--gold)}
.cmdbar__version:hover{background:rgba(201,162,39,.24)}
.cmdbar__version[aria-pressed="true"]{
  background:var(--gold);
  color:var(--purple);
  font-weight:700;
}
.cmdbar__cta{
  display:inline-flex;align-items:center;
  padding:.42rem .78rem;
  font-size:.82rem;font-weight:700;line-height:1.2;
  background:var(--gold);
  color:var(--purple);
  border:var(--rule) solid var(--gold-light);
  text-decoration:none;
  white-space:nowrap;
  box-shadow:2px 2px 0 rgba(22,18,27,.6);
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.cmdbar__cta:hover{background:var(--gold-light);transform:translate(-1px,-1px);box-shadow:3px 3px 0 rgba(22,18,27,.7)}
.cmdbar__toggle{
  display:none;
  flex-direction:column;justify-content:center;gap:4px;
  width:34px;height:34px;
  padding:0 7px;
  border:var(--rule) solid var(--gold);
  background:transparent;
  cursor:pointer;
}
.cmdbar__bar{display:block;height:1.5px;background:var(--gold-light);transition:transform .18s ease,opacity .18s ease}
.cmdbar__toggle[aria-expanded="true"] .cmdbar__bar:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.cmdbar__toggle[aria-expanded="true"] .cmdbar__bar:nth-child(2){opacity:0}
.cmdbar__toggle[aria-expanded="true"] .cmdbar__bar:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ===========================================================
   14. 页脚 footer
   =========================================================== */
.footer{
  margin-top:clamp(3rem,7vw,6rem);
  background-color:var(--purple);
  background-image:
    radial-gradient(rgba(246,241,231,.045) .5px,transparent .5px);
  background-size:8px 8px;
  color:var(--ivory);
  border-top:var(--rule) solid var(--gold);
}
.footer__rail{
  display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;justify-content:space-between;
  padding:.62rem max(var(--gut),calc((100% - var(--wrap)) / 2 + var(--gut)));
  border-bottom:1px solid rgba(201,162,39,.3);
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.18em;
  color:var(--gold-light);
}
.footer__inner{
  padding-block:clamp(2rem,5vw,3.5rem) 1.5rem;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:var(--gap);
  align-items:start;
}
.footer__col{min-width:0}
.footer__brand{
  font-family:var(--font-display);
  font-size:clamp(1.5rem,2.4vw,2rem);
  font-weight:800;
  letter-spacing:.03em;
  line-height:1.2;
  color:var(--gold-light);
}
.footer__desc{
  margin-top:.9rem;
  max-width:26em;
  font-size:.9rem;
  line-height:1.85;
  color:rgba(246,241,231,.74);
}
.footer__closing{
  margin-top:1rem;
  padding-left:.7rem;
  border-left:2px solid rgba(201,162,39,.6);
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.08em;
  line-height:1.7;
  color:rgba(246,241,231,.6);
}
.footer__head{
  display:flex;align-items:center;gap:.5rem;
  margin-bottom:.95rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--gold-light);
}
.footer__head::before{content:"";width:12px;height:1px;background:var(--gold);flex:none}
.footer__list{display:flex;flex-direction:column;gap:.1rem}
.footer__link{
  display:inline-block;
  padding:.2rem 0;
  font-size:.9rem;
  color:rgba(246,241,231,.8);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.footer__link:hover{color:var(--gold-light);border-bottom-color:var(--gold)}
.footer__contact{display:flex;flex-direction:column;gap:.35rem;font-size:.9rem;color:rgba(246,241,231,.82);line-height:1.7}
.footer__contact li:last-child{font-size:.82rem;color:rgba(246,241,231,.68)}
.footer__note{
  margin-top:1rem;
  padding-left:.7rem;
  border-left:2px solid rgba(201,162,39,.5);
  font-size:.72rem;
  line-height:1.75;
  color:rgba(246,241,231,.58);
}
.footer__meta{
  display:flex;flex-wrap:wrap;gap:1rem;
  align-items:center;justify-content:space-between;
  margin-top:clamp(2rem,4vw,3rem);
  padding-top:1.1rem;
  border-top:1px solid rgba(201,162,39,.28);
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.08em;
  color:rgba(246,241,231,.62);
}
.footer__legal{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem 1rem}
.footer__legal-link{
  color:var(--gold-light);
  text-decoration:none;
  border-bottom:1px solid rgba(231,206,123,.35);
}
.footer__legal-link:hover{color:var(--ivory);border-bottom-color:var(--ivory)}
.footer__copy{margin:0}
.footer__totop{
  padding:.42rem .7rem;
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.14em;
  color:var(--gold-light);
  border:1px solid rgba(201,162,39,.6);
  cursor:pointer;
  transition:background-color .16s ease,color .16s ease;
}
.footer__totop:hover{background:var(--gold);color:var(--purple)}

/* ===========================================================
   15. 平板
   =========================================================== */
@media (max-width:1080px){
  .footer__grid{grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,2.5rem)}
  .footer__col--brand{grid-column:1 / -1}
  .grid--split{grid-template-columns:minmax(0,1fr)}
  .grid--split>.grid__aside{border-left:0;border-top:1px solid rgba(201,162,39,.55);padding-left:0;padding-top:1.1rem}
  .span-4,.span-6,.span-8{grid-column:span 6}
}

/* ===========================================================
   16. 移动端命令栏
   =========================================================== */
@media (max-width:900px){
  .cmdbar__inner{
    grid-template-columns:minmax(0,1fr) auto;
    align-items:center;
    column-gap:.6rem;
    padding-block:0;
    min-height:0;
  }
  .cmdbar__brand{grid-column:1;grid-row:1;min-height:54px}
  .cmdbar__seal{width:30px;height:30px}
  .cmdbar__seal-char{font-size:.9rem}
  .cmdbar__name{font-size:1rem}
  .cmdbar__tagline{font-size:.56rem;letter-spacing:.12em}
  .cmdbar__tools{grid-column:2;grid-row:1;gap:.4rem}
  .cmdbar__channel{display:none}
  .cmdbar__version{padding:.26rem .42rem;font-size:.6rem}
  .cmdbar__cta{padding:.36rem .6rem;font-size:.76rem}
  .cmdbar__toggle{display:flex}

  .cmdbar__nav{
    grid-column:1 / -1;
    grid-row:2;
    margin-inline:calc(var(--gut) * -1);
    padding-inline:var(--gut);
    border-top:1px solid rgba(201,162,39,.28);
  }
  .cmdbar__list{
    display:flex;flex-wrap:nowrap;
    overflow-x:auto;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .cmdbar__list::-webkit-scrollbar{display:none}
  .cmdbar__link{padding:.62rem .62rem;font-size:.84rem;white-space:nowrap}
  .cmdbar__link[aria-current="page"]::after{bottom:.22rem}

  /* 展开态：索引下拉面板 */
  .cmdbar__nav[data-open]{
    position:absolute;
    top:100%;left:0;right:0;
    margin-inline:0;
    padding:.8rem var(--gut) 1.1rem;
    background-color:var(--purple);
    background-image:radial-gradient(rgba(246,241,231,.05) .5px,transparent .5px);
    background-size:7px 7px;
    border-top:var(--rule) solid var(--gold);
    border-bottom:var(--rule) solid var(--gold);
    box-shadow:0 18px 26px -14px rgba(22,18,27,.85);
    max-height:72vh;
    overflow-y:auto;
  }
  .cmdbar__nav[data-open] .cmdbar__list{
    display:grid;
    grid-template-columns:1fr 1fr;
    overflow:visible;
  }
  .cmdbar__nav[data-open] .cmdbar__link{
    width:100%;
    padding:.65rem .3rem;
    font-size:.94rem;
    border-bottom:1px solid rgba(201,162,39,.2);
  }
  .cmdbar__nav[data-open] .cmdbar__link[aria-current="page"]::after{display:none}
}

/* ===========================================================
   17. 手机
   =========================================================== */
@media (max-width:640px){
  :root{--bar-h:52px}
  .cmdbar__tagline{display:none}
  .cmdbar__wordmark{gap:0}
  .cmdbar__name{font-size:.95rem}
  .cmdbar__versions{display:none}
  .cmdbar__cta{padding:.34rem .5rem;font-size:.72rem;box-shadow:2px 2px 0 rgba(22,18,27,.5)}
  .cmdbar__nav[data-open] .cmdbar__list{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .footer__meta{justify-content:flex-start}
  .span-4,.span-6,.span-8,.span-12{grid-column:span 12}
  .grid--magazine{grid-template-columns:repeat(4,minmax(0,1fr))}
  .frame{padding:1.1rem}
  .breadcrumbs{font-size:.66rem}
}

/* ===========================================================
   18. 减少动效
   =========================================================== */
@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}
  .btn:hover{transform:none}
  .cmdbar__cta:hover{transform:none}
}