/* ==========================================================================
   奇迹电游中心 · Site Kit 共享样式  /assets/site.css
   深空底 + 精密网格 + 堆叠画板 + 霓虹数据层
   ========================================================================== */

:root{
  --ink-0:#050A18;
  --ink-1:#0B1530;
  --ink-2:#070E1E;
  --line:#1B2A4E;
  --line-soft:rgba(27,42,78,.72);
  --cyan:#19E3D0;
  --cyan-soft:#7BF6E8;
  --orange:#FF7A2F;
  --magenta:#FF2E93;
  --text-1:#EAF2FF;
  --text-2:#A9B8D8;
  --text-3:#6C7C9E;
  --glass:rgba(234,242,255,.06);
  --glass-soft:rgba(234,242,255,.03);
  --font-display:"HarmonyOS Sans SC","Inter Tight","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","STSong","SimSun",Georgia,serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --gutter:clamp(1.15rem,4vw,3.25rem);
  --max:1216px;
  --ease:cubic-bezier(.22,.68,.28,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  background:var(--ink-0);
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,pre{margin:0}
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;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse}

body{
  position:relative;
  min-height:100vh;
  background:transparent;
  color:var(--text-1);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background:
    radial-gradient(58% 46% at 84% -4%,rgba(25,227,208,.13),transparent 68%),
    radial-gradient(52% 42% at 2% 6%,rgba(255,46,147,.10),transparent 70%),
    radial-gradient(64% 52% at 50% 106%,rgba(255,122,47,.09),transparent 72%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(27,42,78,.5) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(27,42,78,.5) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(125% 92% at 50% 0%,#000 0%,rgba(0,0,0,.32) 55%,transparent 86%);
  mask-image:radial-gradient(125% 92% at 50% 0%,#000 0%,rgba(0,0,0,.32) 55%,transparent 86%);
}

:where(a,button,[tabindex]):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

/* ---------- 基础排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--text-1);
}
h1{font-size:clamp(2rem,5vw,4.2rem)}
h2{font-size:clamp(1.6rem,3.2vw,2.6rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.4rem);letter-spacing:0}
p{color:var(--text-2)}
strong{color:var(--text-1)}

.section-title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(1.6rem,3.6vw,2.6rem);
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--text-1);
}
.lede{
  font-size:clamp(1rem,1.4vw,1.15rem);
  line-height:1.8;
  color:var(--text-2);
  max-width:38em;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:18px;
  height:1px;
  background:currentColor;
}
.chapter{
  display:flex;
  align-items:baseline;
  gap:.7rem;
  font-family:var(--font-serif);
  font-weight:600;
  font-size:clamp(1.35rem,2.4vw,2.1rem);
  line-height:1.3;
  color:var(--text-1);
}
.chapter__num{
  font-family:var(--font-mono);
  font-size:.62em;
  letter-spacing:.12em;
  color:var(--orange);
}

/* ---------- 布局 ---------- */
.container{
  width:100%;
  max-width:var(--max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.container--narrow{max-width:800px}
.container--wide{max-width:1440px}

.band{padding-block:clamp(3rem,7vw,6.5rem)}
.band--tight{padding-block:clamp(1.75rem,3.5vw,3rem)}

.rule{
  height:1px;
  border:0;
  background:var(--line);
  margin-block:clamp(1.5rem,3vw,2.5rem);
}

.grid{display:grid;gap:clamp(1.2rem,2.4vw,2rem)}
.grid--split{grid-template-columns:minmax(0,1fr) minmax(0,1.6fr)}
.grid--halves{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--thirds{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-12{grid-template-columns:repeat(12,minmax(0,1fr))}

/* ---------- 堆叠画板 ---------- */
.panel{
  position:relative;
  padding:clamp(1.35rem,3vw,2.5rem);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,21,48,.94),rgba(11,21,48,.58));
}
.panel--glass{
  background:var(--glass);
  border-color:rgba(25,227,208,.22);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.panel__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:.75rem;
  padding-bottom:.9rem;
  margin-bottom:1.2rem;
  border-bottom:1px solid var(--line);
}
.panel__title{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(1.05rem,1.6vw,1.25rem);
  letter-spacing:.01em;
  color:var(--text-1);
}

/* ---------- 数据焦点 ---------- */
.stat{display:flex;flex-direction:column;gap:.35rem}
.stat__num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(2.4rem,6vw,4.6rem);
  line-height:.95;
  letter-spacing:-.03em;
  color:var(--text-1);
}
.stat__num--cyan{
  color:var(--cyan);
  text-shadow:0 0 26px rgba(25,227,208,.35);
}
.stat__unit{
  font-family:var(--font-mono);
  font-size:.32em;
  letter-spacing:.02em;
  color:var(--text-3);
  margin-left:.25em;
}
.stat__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--text-2);
}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.24rem .55rem;
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.5;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--text-2);
}
.tag--cyan{color:var(--cyan);border-color:rgba(25,227,208,.45);background:rgba(25,227,208,.08)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,47,.5);background:rgba(255,122,47,.1)}
.tag--magenta{color:var(--magenta);border-color:rgba(255,46,147,.5);background:rgba(255,46,147,.1)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.85rem 1.35rem;
  border:1px solid var(--line);
  font-family:var(--font-display);
  font-weight:700;
  font-size:15px;
  line-height:1;
  letter-spacing:.06em;
  color:var(--text-1);
  background:transparent;
  transition:color .12s linear,border-color .12s linear,background .12s linear,transform .12s var(--ease);
}
.btn--primary{
  border-color:transparent;
  color:#140A03;
  background:linear-gradient(135deg,#FF9557,#FF6A18);
  box-shadow:0 0 0 1px rgba(255,122,47,.45),0 14px 34px -14px rgba(255,122,47,.8);
}
.btn--primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,122,47,.7),0 18px 40px -14px rgba(255,122,47,.9)}
.btn--ghost{
  color:var(--cyan-soft);
  border-color:rgba(25,227,208,.45);
  background:rgba(25,227,208,.06);
}
.btn--ghost:hover{color:#04121A;background:var(--cyan);border-color:var(--cyan)}
.btn--sm{padding:.62rem 1rem;font-size:13px;letter-spacing:.08em}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--text-3);
}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem}
.breadcrumb__item{display:inline-flex;align-items:center;gap:.45rem}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line)}
.breadcrumb__item a{color:var(--text-2);transition:color .12s linear}
.breadcrumb__item a:hover{color:var(--cyan)}
.breadcrumb__item [aria-current="page"]{color:var(--cyan)}

/* ---------- 图片容器基础 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16 / 10;
  background:
    linear-gradient(150deg,rgba(25,227,208,.16),rgba(11,21,48,.92) 46%,rgba(255,46,147,.14));
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(25,227,208,.14) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(25,227,208,.14) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.5;
}
.media-frame--tall{aspect-ratio:4 / 5}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame > img,
.media-frame > svg,
.media-frame > picture > img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:1;
}
.media-frame__caption{
  margin-top:.65rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--text-3);
}

/* ---------- 显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  top:.6rem;
  left:.6rem;
  z-index:200;
  padding:.75rem 1.1rem;
  font-family:var(--font-display);
  font-weight:700;
  font-size:13px;
  letter-spacing:.08em;
  color:#04121A;
  background:var(--cyan);
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:none}

/* ==========================================================================
   刊头 / 导航
   ========================================================================== */
.masthead{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(5,10,24,.97),rgba(5,10,24,.88));
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.masthead__progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:rgba(27,42,78,.6);
  overflow:hidden;
}
.masthead__progress-bar{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-soft) 58%,var(--magenta));
  box-shadow:0 0 12px rgba(25,227,208,.65);
}
.masthead__inner{
  position:relative;
  width:100%;
  max-width:var(--max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.masthead__meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  max-height:46px;
  padding-block:.45rem;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--text-3);
  transition:max-height .3s var(--ease),opacity .2s linear,padding .3s var(--ease),border-color .2s linear;
}
.masthead__meta-item{white-space:nowrap}
.masthead__meta-item--data{color:var(--text-2)}
.masthead__meta-num{color:var(--cyan);letter-spacing:.06em}

.masthead__deck{
  position:relative;
  padding-block:1.05rem .8rem;
  text-align:center;
}
.masthead__brand{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(1.35rem,2.6vw,2rem);
  line-height:1.1;
  letter-spacing:.22em;
  text-indent:.22em;
  color:var(--text-1);
  transition:color .12s linear,font-size .25s var(--ease),letter-spacing .25s var(--ease);
}
.masthead__brand:hover{color:var(--cyan-soft);text-shadow:0 0 22px rgba(25,227,208,.35)}
.masthead__tagline{
  max-height:2.4rem;
  margin-top:.4rem;
  overflow:hidden;
  font-family:var(--font-serif);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text-3);
  transition:max-height .28s var(--ease),opacity .2s linear,margin .28s var(--ease);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.5rem;
  padding:.5rem .7rem;
  border:1px solid var(--line);
  color:var(--text-2);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  transition:color .12s linear,border-color .12s linear;
}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;
  height:1px;
  background:currentColor;
  transition:background .18s linear;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:1px;
  background:currentColor;
  transition:transform .18s var(--ease),top .18s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.masthead[data-open] .nav-toggle{color:var(--cyan);border-color:rgba(25,227,208,.55)}
.masthead[data-open] .nav-toggle__bars{background:transparent}
.masthead[data-open] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.masthead[data-open] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

.nav{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:1rem;
  border-top:1px solid var(--line);
}
.nav__list{
  grid-column:2;
  display:flex;
  align-items:center;
  gap:clamp(.3rem,1.4vw,1.2rem);
}
.nav__link{
  position:relative;
  display:inline-block;
  padding:.95rem .35rem;
  font-family:var(--font-display);
  font-size:15px;
  letter-spacing:.08em;
  color:var(--text-2);
  transition:color .12s linear;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:.35rem;
  right:.35rem;
  bottom:.55rem;
  height:1px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .18s var(--ease);
}
.nav__link:hover{color:var(--text-1)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--cyan)}
.nav__link[aria-current="page"]::after{
  height:2px;
  transform:scaleX(1);
  box-shadow:0 0 12px rgba(25,227,208,.8);
}
.nav__cta{grid-column:3;justify-self:end}

.quickbar{
  display:flex;
  align-items:center;
  gap:1rem;
  padding-block:.5rem .6rem;
  border-top:1px solid var(--line);
  overflow-x:auto;
  overflow-y:hidden;
  scrollbar-width:thin;
}
.quickbar__label{
  flex:none;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--text-3);
}
.quickbar__list{display:flex;align-items:center;gap:.25rem}
.quickbar__item{flex:none}
.quickbar__link{
  display:inline-block;
  padding:.26rem .6rem;
  border:1px solid transparent;
  font-size:13px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .12s linear,border-color .12s linear,background .12s linear;
}
.quickbar__link:hover,
.quickbar__link:focus-visible{
  color:var(--cyan-soft);
  border-color:rgba(25,227,208,.42);
  background:rgba(25,227,208,.08);
}
.quickbar__link[aria-current="page"]{
  color:var(--cyan);
  border-color:rgba(25,227,208,.42);
}

/* 刊头收紧态 */
.masthead[data-condensed] .masthead__meta{
  max-height:0;
  padding-block:0;
  opacity:0;
  border-bottom-color:transparent;
}
.masthead[data-condensed] .masthead__tagline{
  max-height:0;
  margin-top:0;
  opacity:0;
}
.masthead[data-condensed] .masthead__deck{padding-block:.5rem .35rem}
.masthead[data-condensed] .masthead__brand{
  font-size:1.02rem;
  letter-spacing:.16em;
  text-indent:.16em;
}
.masthead[data-condensed] .nav__link{padding-block:.62rem}
.masthead[data-condensed] .quickbar{display:none}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,8vw,7rem);
  overflow:hidden;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,21,48,0),rgba(11,21,48,.86) 34%,var(--ink-2));
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(68% 58% at 16% 0%,rgba(25,227,208,.11),transparent 66%),
    radial-gradient(52% 50% at 92% 16%,rgba(255,46,147,.10),transparent 72%);
}
.site-footer__inner{
  position:relative;
  width:100%;
  max-width:var(--max);
  margin-inline:auto;
  padding:clamp(2.5rem,5vw,4rem) var(--gutter) 1.5rem;
}
.footer-upper{
  display:grid;
  grid-template-columns:1.55fr repeat(3,minmax(0,.82fr)) 1.45fr;
  gap:clamp(1.4rem,2.6vw,2.4rem);
  padding-bottom:clamp(2rem,4vw,3rem);
  border-bottom:1px solid var(--line);
}
.footer-brand__mark{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(1.2rem,2vw,1.5rem);
  letter-spacing:.2em;
  color:var(--text-1);
}
.footer-brand__line{
  margin-top:.75rem;
  max-width:30ch;
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
}
.footer-brand__tag{
  margin-top:.7rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--text-3);
}
.footer-brand__marks{display:flex;gap:.4rem;margin-top:1.15rem}
.footer-brand__pip{display:block;width:28px;height:2px}
.footer-brand__pip--cyan{background:var(--cyan);box-shadow:0 0 10px rgba(25,227,208,.7)}
.footer-brand__pip--orange{background:var(--orange)}
.footer-brand__pip--magenta{background:var(--magenta)}

.footer-col__title{
  margin-bottom:.9rem;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--text-3);
}
.footer-col__list{display:flex;flex-direction:column;gap:.15rem}
.footer-col__link{
  display:inline-block;
  padding-block:.28rem;
  font-size:14px;
  color:var(--text-2);
  transition:color .12s linear,transform .12s var(--ease);
}
.footer-col__link:hover{color:var(--cyan);transform:translateX(2px)}
.footer-col__link[aria-current="page"]{color:var(--cyan)}

.footer-contact__row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:.5rem .6rem;
  padding-block:.45rem;
  border-bottom:1px solid rgba(27,42,78,.7);
}
.footer-contact__label{
  flex:0 0 4.8em;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--text-3);
}
.footer-contact__value{
  font-size:14px;
  line-height:1.6;
  color:var(--text-1);
  word-break:break-all;
}
.footer-contact__value--mono{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.01em;
}
.copy-btn{
  margin-left:auto;
  padding:.16rem .5rem;
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  color:var(--text-3);
  transition:color .12s linear,border-color .12s linear,background .12s linear;
}
.copy-btn:hover,
.copy-btn:focus-visible{color:var(--cyan);border-color:rgba(25,227,208,.5);background:rgba(25,227,208,.08)}
.copy-btn[data-copied]{color:#04121A;background:var(--cyan);border-color:var(--cyan)}
.footer-contact__note{
  margin-top:.9rem;
  font-size:12px;
  line-height:1.75;
  color:var(--text-3);
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.5rem 1.6rem;
  padding-top:1.4rem;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-3);
}
.footer-legal__item{color:var(--text-3)}
.footer-legal__item--statement{max-width:46ch}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1180px){
  .footer-upper{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;position:absolute;right:0;top:50%;transform:translateY(-50%)}
  .masthead__deck{padding-right:5.2rem}
  .masthead__brand{text-align:center}

  .nav{
    display:none;
    grid-template-columns:1fr;
    gap:0;
    padding-block:.4rem .9rem;
    border-top:1px solid var(--line);
  }
  .masthead[data-open] .nav{display:grid}
  .nav__list{
    grid-column:1;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    width:100%;
  }
  .nav__item{border-bottom:1px solid rgba(27,42,78,.7)}
  .nav__link{
    display:block;
    width:100%;
    padding:.85rem .25rem;
    font-size:16px;
  }
  .nav__link::after{display:none}
  .nav__link[aria-current="page"]{
    padding-left:.8rem;
    border-left:2px solid var(--cyan);
    background:rgba(25,227,208,.05);
  }
  .nav__cta{grid-column:1;justify-self:stretch;padding-top:.9rem}
  .nav__cta .btn{width:100%}

  .grid--split,.grid--halves,.grid--thirds,.grid-12{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:720px){
  .masthead__meta{font-size:10px;letter-spacing:.1em}
  .masthead__meta-item--data{display:none}
  .masthead__tagline{display:none}
  .quickbar{gap:.6rem}
  .quickbar__label{display:none}
  .footer-upper{grid-template-columns:minmax(0,1fr)}
  .footer-legal{flex-direction:column;align-items:flex-start}
}

/* ==========================================================================
   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}
  .btn--primary:hover,
  .footer-col__link:hover{transform:none}
}