/* ==========================================================================
   金年会赛场 · 共享样式 /assets/site.css
   深夜赛场控制室：墨绿底 · 青柠脉冲 · 琥珀计时 · 印刷边框 · 纸层叠放
   ========================================================================== */

/* 1. 变量 */
:root{
  --ink-900:#06110F;
  --ink-800:#0E1B18;
  --ink-700:#14332B;
  --lime:#C8FF4D;
  --amber:#F2B84B;
  --paper:#F4F7F1;
  --mist:#9BAEA6;
  --wine:#5A1F2B;
  --indigo:#1D2A4D;
  --rule:#3E5A50;
  --rule-soft:rgba(62,90,80,.5);
  --lime-soft:rgba(200,255,77,.12);
  --amber-soft:rgba(242,184,75,.14);
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --fs-12:.75rem;
  --fs-14:.875rem;
  --fs-16:1rem;
  --fs-20:1.25rem;
  --fs-28:1.75rem;
  --fs-40:2.5rem;
  --fs-64:4rem;
  --fs-96:6rem;
  --shell:1320px;
  --gutter:clamp(1rem,3vw,2.5rem);
  --radius:2px;
}

/* 2. 重置 */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:var(--fs-16);
  line-height:1.7;
  color:var(--paper);
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(200,255,77,.07), transparent 62%),
    radial-gradient(900px 720px at 4% 2%, rgba(29,42,77,.5), transparent 66%),
    var(--ink-900);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
#main-content{display:block;scroll-margin-top:5.5rem;outline:none;}
#main-content:focus-visible{outline:2px solid var(--lime);outline-offset:-4px;}

.visually-hidden{
  position:absolute !important;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}

/* 3. 基础排版工具 */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(2rem,5vw,3.5rem);}
.rule{height:1px;border:0;background:var(--rule-soft);margin:0;}
.rule--amber{background:linear-gradient(90deg,var(--amber),rgba(242,184,75,0));}
.label{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--amber);
}
.lede{
  font-size:clamp(1.05rem,2.2vw,1.1875rem);
  line-height:1.75;
  color:rgba(244,247,241,.82);
  max-width:62ch;
}
.note{
  font-size:var(--fs-14);
  line-height:1.7;
  color:var(--mist);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.18rem .55rem;
  border:1px solid var(--rule);
  border-radius:var(--radius);
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
  background:rgba(6,17,15,.4);
}
.tag--lime{border-color:rgba(200,255,77,.45);color:var(--lime);background:var(--lime-soft);}
.tag--wine{border-color:rgba(242,184,75,.4);color:var(--amber);background:rgba(90,31,43,.5);}
.tag--indigo{border-color:rgba(155,174,166,.45);color:var(--paper);background:rgba(29,42,77,.55);}

/* 4. 网格与节奏 */
.grid{display:grid;gap:clamp(1rem,2.5vw,1.75rem);}
.grid--split{grid-template-columns:minmax(0,3fr) minmax(0,9fr);align-items:start;}
.grid--cards{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));}
.stack{display:grid;gap:clamp(.75rem,2vw,1.25rem);}
.cluster{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem;}

/* 5. 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.7rem 1.15rem;
  border:1px solid var(--rule);
  border-radius:var(--radius);
  background:rgba(14,27,24,.7);
  color:var(--paper);
  font-family:var(--font-display);
  font-size:.9375rem;
  font-weight:600;
  letter-spacing:.08em;
  line-height:1.2;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn:hover{border-color:var(--lime);color:var(--lime);transform:translate(-1px,-1px);}
.btn--lime{background:var(--lime);border-color:var(--lime);color:var(--ink-900);}
.btn--lime:hover{background:#d8ff78;border-color:#d8ff78;color:var(--ink-900);}
.btn--outline{background:transparent;border-color:rgba(200,255,77,.5);color:var(--lime);}
.btn--outline:hover{background:var(--lime-soft);color:var(--lime);}
.btn--ghost{background:transparent;border-color:transparent;color:var(--mist);}
.btn--ghost:hover{color:var(--paper);border-color:var(--rule);}
.btn--sm{padding:.42rem .85rem;font-size:.8125rem;letter-spacing:.06em;}

/* 6. 跳转链 */
.skip-link{
  position:fixed;
  top:.5rem;
  left:.5rem;
  z-index:200;
  padding:.65rem 1rem;
  background:var(--lime);
  color:var(--ink-900);
  font-family:var(--font-display);
  font-size:.9375rem;
  font-weight:700;
  letter-spacing:.08em;
  border-radius:var(--radius);
  transform:translateY(-180%);
  transition:transform .18s ease;
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);outline-offset:2px;}

/* 7. 页头 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(14,27,24,.985),rgba(6,17,15,.965));
  border-bottom:1px solid var(--rule);
  box-shadow:0 10px 24px -18px rgba(0,0,0,.9);
}
.header-meter{height:2px;background:rgba(62,90,80,.35);overflow:hidden;}
.header-meter__fill{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--lime),var(--amber));
}
.header-inner{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.header-utility{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding-block:.5rem;
  border-bottom:1px solid var(--rule-soft);
}
.utility-note{
  display:flex;
  align-items:center;
  gap:.5rem;
  margin:0;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--mist);
}
.signal-dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(200,255,77,.16);
  flex:none;
}
.utility-actions{
  display:flex;
  align-items:center;
  gap:1.35rem;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.utility-link{
  position:relative;
  display:inline-block;
  padding-bottom:3px;
  color:var(--mist);
  transition:color .18s ease;
}
.utility-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:1px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.utility-link:hover,.utility-link:focus-visible{color:var(--lime);}
.utility-link:hover::after,.utility-link:focus-visible::after{transform:scaleX(1);}

.masthead{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:1rem;
  padding-block:.8rem .9rem;
}
.masthead-side{
  margin:0;
  font-family:var(--font-mono);
  font-size:.625rem;
  line-height:1.6;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--rule);
}
.masthead-side--right{
  display:flex;
  justify-content:flex-end;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:.75rem;
  justify-self:center;
}
.brand-mark{
  display:grid;
  place-items:center;
  flex:none;
  width:2.75rem;height:2.75rem;
  border-radius:var(--radius);
  background:linear-gradient(150deg,var(--lime),#9EDC33);
  color:var(--ink-900);
  font-family:var(--font-display);
  font-size:1.5rem;
  font-weight:700;
  line-height:1;
  box-shadow:3px 3px 0 0 rgba(62,90,80,.95);
}
.brand-stack{display:grid;gap:.15rem;line-height:1.15;}
.brand-name{
  font-family:var(--font-display);
  font-size:1.5rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--paper);
  transition:color .18s ease;
}
.brand:hover .brand-name,.brand:focus-visible .brand-name{color:var(--lime);}
.brand-descriptor{
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}

.nav-toggle{
  display:none;
  width:100%;
  align-items:center;
  justify-content:center;
  gap:.65rem;
  margin-block:.1rem .7rem;
  padding:.65rem .9rem;
  border:1px solid var(--rule);
  border-radius:var(--radius);
  background:var(--ink-800);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime);}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:18px;flex:none;}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:var(--lime);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.main-nav{border-top:1px solid var(--rule);}
.main-nav__list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:.25rem 1.6rem;
  padding-block:.45rem;
}
.main-nav__link{
  position:relative;
  display:inline-block;
  padding:.5rem .15rem;
  font-size:var(--fs-14);
  font-weight:600;
  letter-spacing:.06em;
  color:rgba(244,247,241,.82);
  transition:color .18s ease;
}
.main-nav__link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease,background-color .18s ease;
}
.main-nav__link:hover,.main-nav__link:focus-visible{color:var(--paper);}
.main-nav__link:hover::after,.main-nav__link:focus-visible::after{transform:scaleX(1);}
.main-nav__link[aria-current="page"]{color:var(--lime);}
.main-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--amber);}

/* 8. 页脚 */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,7vw,6rem);
  border-top:1px solid var(--rule);
  background:
    linear-gradient(180deg,rgba(20,51,43,.55),rgba(6,17,15,.97) 42%),
    var(--ink-900);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background:linear-gradient(90deg,var(--lime),rgba(200,255,77,0) 42%,var(--amber) 74%,rgba(242,184,75,0));
}
.footer-inner{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:clamp(2rem,5vw,3.5rem) var(--gutter) 1.5rem;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1.9fr);
  gap:clamp(1.75rem,4vw,3rem);
}
.footer-brandblock{display:grid;gap:1rem;justify-items:start;}
.brand--footer{justify-self:start;}
.brand--footer .brand-mark{width:2.25rem;height:2.25rem;font-size:1.2rem;}
.brand--footer .brand-name{font-size:var(--fs-20);}
.footer-statement{
  max-width:36ch;
  margin:0;
  font-size:.9375rem;
  line-height:1.75;
  color:var(--mist);
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1.5rem 1.25rem;
}
.footer-col__title{
  margin:0 0 .75rem;
  font-family:var(--font-mono);
  font-size:.6875rem;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--amber);
}
.footer-list{display:grid;gap:.5rem;}
.footer-link{
  display:inline-block;
  position:relative;
  font-size:.9375rem;
  color:rgba(244,247,241,.78);
  transition:color .18s ease;
}
.footer-link::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:100%;height:1px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.footer-link:hover,.footer-link:focus-visible{color:var(--lime);}
.footer-link:hover::after,.footer-link:focus-visible::after{transform:scaleX(1);}
.footer-contact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1rem 2rem;
  margin-top:clamp(2rem,4vw,2.75rem);
  padding-top:1.25rem;
  border-top:1px solid var(--rule-soft);
}
.contact-item{margin:0;font-size:var(--fs-14);color:rgba(244,247,241,.82);}
.contact-label{
  display:block;
  margin-bottom:.15rem;
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--rule);
}
.contact-value{
  display:block;
  font-family:var(--font-mono);
  font-size:.875rem;
  letter-spacing:.01em;
  color:var(--paper);
  word-break:break-word;
}
.footer-note{
  grid-column:1 / -1;
  margin:0;
  max-width:70ch;
  font-size:var(--fs-12);
  line-height:1.75;
  color:var(--mist);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.5rem 1.5rem;
  margin-top:1.5rem;
  padding-top:1rem;
  border-top:1px solid var(--rule-soft);
}
.footer-legal{
  margin:0;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.08em;
  color:var(--mist);
}
.footer-copy{
  margin:0;
  font-size:var(--fs-12);
  color:var(--mist);
}

/* 9. 面包屑 */
.breadcrumb{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:1.1rem var(--gutter) 0;
}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--mist);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:.5rem;}
.breadcrumb__item[aria-current="page"]{color:var(--paper);}
.breadcrumb__link{
  color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.breadcrumb__link:hover,.breadcrumb__link:focus-visible{color:var(--lime);border-bottom-color:var(--lime);}
.breadcrumb__sep{color:var(--rule);}

/* 10. 面板（纸层叠放） */
.panel{
  position:relative;
  padding:clamp(1.1rem,2.4vw,1.6rem);
  border:1px solid var(--rule);
  border-radius:var(--radius);
  background:var(--ink-800);
  box-shadow:6px 6px 0 0 rgba(20,51,43,.85);
}
.panel--wine{
  background:linear-gradient(160deg,rgba(90,31,43,.92),rgba(14,27,24,.96));
  border-color:rgba(242,184,75,.32);
  box-shadow:6px 6px 0 0 rgba(90,31,43,.5);
}
.panel--indigo{
  background:linear-gradient(160deg,rgba(29,42,77,.9),rgba(14,27,24,.96));
  border-color:rgba(200,255,77,.24);
  box-shadow:6px 6px 0 0 rgba(29,42,77,.6);
}
.panel--lime{background:rgba(200,255,77,.08);border-color:rgba(200,255,77,.45);}
.panel__title{
  margin:0 0 .5rem;
  font-family:var(--font-display);
  font-size:1.125rem;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.3;
  color:var(--paper);
}

/* 11. 比分数字 */
.score{
  display:inline-flex;
  align-items:baseline;
  font-family:var(--font-mono);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:.95;
  color:var(--lime);
}
.score--sm{font-size:clamp(1.75rem,4vw,2.5rem);}
.score--lg{font-size:clamp(3rem,9vw,var(--fs-96));}
.score__unit{
  margin-left:.25em;
  font-size:.34em;
  letter-spacing:.08em;
  color:var(--mist);
}

/* 12. 赛程时间轴 */
.timeline{
  position:relative;
  display:grid;
  gap:.95rem;
  padding-left:1.15rem;
  border-left:1px solid var(--rule);
}
.timeline__item{position:relative;}
.timeline__item::before{
  content:"";
  position:absolute;
  left:-1.155rem;
  top:.5rem;
  width:7px;height:7px;
  border:1px solid var(--lime);
  border-radius:50%;
  background:var(--ink-900);
}
.timeline__time{
  display:block;
  font-family:var(--font-mono);
  font-size:var(--fs-12);
  letter-spacing:.08em;
  color:var(--amber);
}
.timeline__body{margin:.15rem 0 0;font-size:.9375rem;line-height:1.6;color:rgba(244,247,241,.86);}
.timeline__meta{
  display:block;
  margin-top:.15rem;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--mist);
}

/* 13. 筛选 chips */
.chip-row{display:flex;flex-wrap:wrap;gap:.5rem;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.4rem .8rem;
  border:1px solid var(--rule);
  border-radius:999px;
  background:rgba(20,51,43,.5);
  color:rgba(244,247,241,.82);
  font-family:var(--font-mono);
  font-size:var(--fs-12);
  letter-spacing:.06em;
  transition:border-color .18s ease,background-color .18s ease,color .18s ease;
}
.chip:hover{border-color:var(--lime);color:var(--paper);}
.chip[aria-pressed="true"],
.chip.is-active{
  border-color:var(--lime);
  background:var(--lime-soft);
  color:var(--lime);
}

/* 14. 图片容器基础 */
.figure{margin:0;display:grid;gap:.6rem;}
.figure__media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 10;
  border:1px solid var(--rule);
  border-radius:var(--radius);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(200,255,77,.14), transparent 62%),
    linear-gradient(155deg,var(--ink-700),var(--ink-800) 55%,var(--indigo));
}
.figure__media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(6,17,15,.28) 0 1px,transparent 1px 4px);
  opacity:.45;
}
.figure__media--wide{aspect-ratio:21 / 9;}
.figure__media--tall{aspect-ratio:3 / 4;}
.figure__media--square{aspect-ratio:1 / 1;}
.figure__img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.figure__caption{
  font-size:var(--fs-14);
  line-height:1.6;
  color:var(--mist);
}

/* 15. 正文容器 */
.prose{
  max-width:72ch;
  font-size:var(--fs-16);
  line-height:1.8;
  color:rgba(244,247,241,.88);
}
.prose > * + *{margin-top:1.1em;}
.prose h2,.prose h3,.prose h4{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:.05em;
  line-height:1.25;
  color:var(--paper);
}
.prose h2{font-size:clamp(1.35rem,3vw,var(--fs-28));}
.prose h3{font-size:var(--fs-20);}
.prose h4{font-size:1.0625rem;}
.prose a{
  color:var(--lime);
  border-bottom:1px solid rgba(200,255,77,.4);
  transition:border-color .18s ease,color .18s ease;
}
.prose a:hover,.prose a:focus-visible{border-bottom-color:var(--lime);}
.prose ul,.prose ol{padding-left:1.25rem;list-style:revert;}
.prose li + li{margin-top:.4em;}
.prose blockquote{
  margin:1.5rem 0;
  padding:.9rem 1.1rem;
  border-left:2px solid var(--amber);
  background:var(--amber-soft);
  color:rgba(244,247,241,.92);
}
.prose--narrow{max-width:60ch;}

/* 16. 平板 */
@media (max-width:1024px){
  .grid--split{grid-template-columns:minmax(0,1fr);}
  .footer-top{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}

/* 17. 移动端 */
@media (max-width:899px){
  body{font-size:.9375rem;}
  .brand-name{font-size:1.3rem;}
  .brand-descriptor{font-size:.5625rem;letter-spacing:.12em;}
  .masthead{
    grid-template-columns:minmax(0,1fr);
    justify-items:center;
    padding-block:.75rem .6rem;
  }
  .masthead-side{display:none;}
  .utility-actions{display:none;}
  .utility-note{font-size:.625rem;letter-spacing:.1em;}
  .nav-toggle{display:flex;}
  .main-nav{display:none;background:var(--ink-800);}
  .main-nav[data-open="true"]{display:block;}
  .main-nav__list{
    flex-direction:column;
    gap:0;
    padding-block:.3rem .7rem;
  }
  .main-nav__list li + li{border-top:1px solid var(--rule-soft);}
  .main-nav__link{
    display:block;
    padding:.85rem .55rem;
    font-size:.9375rem;
  }
  .main-nav__link::after{display:none;}
  .main-nav__link[aria-current="page"]{
    padding-left:.85rem;
    border-left:2px solid var(--lime);
    background:var(--lime-soft);
  }
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:1.35rem;}
  .footer-contact{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .panel{box-shadow:4px 4px 0 0 rgba(20,51,43,.85);}
  .chip{font-size:.6875rem;padding:.35rem .7rem;}
}

/* 18. 减弱动效 */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .btn:hover{transform:none;}
  .skip-link{transition:none;}
}