/* ============================================================
   澳门新葡萄玩法指南 — 共享站点样式 /assets/site.css
   结构：变量 → 重置 → 排版 → 刊头 → 页脚 → 通用组件 → 响应式 → 动效偏好
   ============================================================ */

:root{
  --vc-900:#2A0F3A;
  --vc-700:#4B1E63;
  --vc-500:#7A3E99;
  --jc-900:#0B3B32;
  --jc-500:#17836E;
  --gold:#D9A441;
  --gold-050:#F3D9A4;
  --mist:#F7F2F7;
  --ink:#17141C;
  --lilac:#C9B8D6;

  --radius-lg:clamp(24px,3vw,40px);
  --radius-md:24px;
  --radius-sm:16px;
  --pill:999px;

  --shell:1240px;
  --reading:760px;
  --gutter:clamp(18px,4vw,40px);

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

  --shadow-soft:0 22px 60px -34px rgba(23,20,28,.55);
  --shadow-lift:0 26px 70px -34px rgba(42,15,58,.6);
}

*,*::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:17px;
  line-height:1.85;
  color:var(--ink);
  background-color:var(--mist);
  background-image:
    radial-gradient(62% 42% at 10% 0%,rgba(122,62,153,.11),transparent 70%),
    radial-gradient(52% 38% at 94% 6%,rgba(23,131,110,.10),transparent 72%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{display:block;max-width:100%}
a{color:var(--jc-500);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:.22em}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.3;
  letter-spacing:.01em;
  color:inherit;
}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
::selection{background:rgba(217,164,65,.34);color:var(--vc-900)}

/* ---------- 跳转链 ---------- */
.skip-link{
  position:fixed;left:50%;top:0;z-index:400;
  transform:translate(-50%,-130%);
  padding:.7em 1.5em;
  border-radius:0 0 16px 16px;
  background:linear-gradient(120deg,var(--gold),#E8C077);
  color:var(--vc-900);
  font-size:14px;font-weight:600;letter-spacing:.06em;
  text-decoration:none;white-space:nowrap;
  transition:transform .22s ease;
}
.skip-link:hover{text-decoration:none;color:var(--vc-900)}
.skip-link:focus-visible{transform:translate(-50%,0)}

/* ---------- 刊头 ---------- */
.site-header{
  position:relative;
  isolation:isolate;
  padding-top:6px;
  color:var(--mist);
  border-bottom:1px solid rgba(217,164,65,.3);
  background:
    radial-gradient(120% 92% at 16% -12%,rgba(122,62,153,.58),transparent 62%),
    radial-gradient(88% 78% at 90% -4%,rgba(23,131,110,.34),transparent 62%),
    linear-gradient(165deg,#2A0F3A 0%,#3A1450 46%,#0B3B32 126%);
}
.site-header::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(90deg,rgba(247,242,247,.06) 1px,transparent 1px);
  background-size:clamp(58px,8vw,104px) 100%;
  opacity:.5;
}
.header-glow{
  position:absolute;z-index:0;top:-230px;right:-90px;
  width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(217,164,65,.30),transparent 68%);
  filter:blur(8px);
  pointer-events:none;
}
.header-inner{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  padding-block:clamp(16px,2.6vw,30px) clamp(10px,1.4vw,18px);
}
.masthead{
  display:grid;
  justify-items:center;
  gap:.3em;
  text-align:center;
  color:inherit;
  text-decoration:none;
}
.masthead:hover{text-decoration:none}
.masthead-title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(23px,3.2vw,40px);
  line-height:1.12;
  letter-spacing:.13em;
  color:var(--mist);
  text-shadow:0 3px 26px rgba(42,15,58,.7);
  transition:color .25s ease;
}
.masthead:hover .masthead-title{color:var(--gold-050)}
.masthead-tagline{
  font-family:var(--font-label);
  font-size:11px;
  letter-spacing:.3em;
  color:var(--gold-050);
  opacity:.86;
}
.masthead::after{
  content:"";
  width:96px;height:10px;
  background-image:radial-gradient(circle at 4px 5px,var(--gold) 1.6px,transparent 2px);
  background-size:12px 10px;
  background-repeat:repeat-x;
  opacity:.6;
}
.masthead-note{
  font-family:var(--font-label);
  font-size:11px;
  letter-spacing:.28em;
  color:rgba(243,217,164,.6);
  writing-mode:vertical-rl;
  text-orientation:mixed;
  align-self:center;
  margin:0;
  user-select:none;
}
.masthead-note--left{justify-self:start}
.masthead-note--right{justify-self:end}

.header-nav{
  position:relative;z-index:2;
  display:flex;
  flex-direction:column;
  align-items:center;
  padding-bottom:clamp(12px,2vw,20px);
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 20px;
  border-radius:var(--pill);
  border:1px solid rgba(217,164,65,.38);
  background:rgba(247,242,247,.06);
  color:var(--mist);
  cursor:pointer;
  transition:background-color .22s ease,border-color .22s ease;
}
.nav-toggle:hover{background:rgba(217,164,65,.16);border-color:rgba(217,164,65,.7)}
.nav-toggle-label{font-size:13px;letter-spacing:.1em}
.nav-toggle-mark{display:grid;gap:4px;width:16px}
.nav-toggle-mark i{
  display:block;height:1.5px;border-radius:2px;
  background:var(--gold);
  transition:transform .26s ease,opacity .2s ease;
}
.site-header[data-open="true"] .nav-toggle-mark i:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-mark i:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle-mark i:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

.site-nav{width:100%}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:4px;
}
.nav-item{display:flex}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:.6em 1.1em;
  border-radius:var(--pill);
  font-size:15px;
  letter-spacing:.03em;
  color:rgba(247,242,247,.86);
  text-decoration:none;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease;
}
.nav-link:hover{
  background:rgba(217,164,65,.15);
  color:var(--gold-050);
  text-decoration:none;
}
.nav-link[aria-current="page"]{
  background:linear-gradient(120deg,var(--gold),#EAC57C);
  color:var(--vc-900);
  font-weight:600;
  box-shadow:0 12px 28px -16px rgba(217,164,65,.95);
}

.scroll-progress{
  position:fixed;
  inset:0 0 auto 0;
  height:3px;
  z-index:350;
  background:rgba(42,15,58,.22);
  pointer-events:none;
}
.scroll-progress-bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--gold),var(--gold-050) 42%,var(--jc-500));
  transition:width .1s linear;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  padding-block:clamp(40px,6vw,74px) 28px;
  border-radius:clamp(28px,4vw,48px) clamp(28px,4vw,48px) 0 0;
  color:var(--mist);
  overflow:hidden;
  background:
    radial-gradient(78% 68% at 10% 0%,rgba(75,30,99,.9),transparent 70%),
    radial-gradient(66% 84% at 94% 8%,rgba(23,131,110,.32),transparent 66%),
    linear-gradient(180deg,#0B3B32 0%,#22102F 76%,#2A0F3A 100%);
}
.footer-glow{
  position:absolute;z-index:0;left:-140px;bottom:-180px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,62,153,.55),transparent 70%);
  pointer-events:none;
}
.footer-inner{position:relative;z-index:2}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.02fr) minmax(0,1.62fr);
  gap:clamp(28px,4vw,64px);
}
.footer-brand-link{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(22px,2.5vw,30px);
  letter-spacing:.1em;
  color:var(--mist);
  text-decoration:none;
  transition:color .22s ease;
}
.footer-brand-link:hover{color:var(--gold-050);text-decoration:none}
.footer-summary{
  margin-top:.9em;
  max-width:34ch;
  font-size:15px;
  line-height:1.9;
  color:rgba(247,242,247,.74);
}
.footer-tagline{
  margin-top:1.2em;
  font-family:var(--font-label);
  font-size:11px;
  letter-spacing:.24em;
  color:rgba(217,164,65,.9);
}
.footer-columns{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr)) minmax(0,1.35fr);
  gap:clamp(20px,3vw,40px);
}
.footer-column-title{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:.95em;
  font-family:var(--font-label);
  font-weight:500;
  font-size:11px;
  letter-spacing:.24em;
  color:var(--gold);
}
.footer-column-title::before{
  content:"";
  width:22px;height:1px;
  background:rgba(217,164,65,.72);
}
.footer-links{font-size:15px}
.footer-links li + li{margin-top:.55em}
.footer-links a{
  color:rgba(247,242,247,.78);
  text-decoration:none;
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--gold-050);text-decoration:none}
.footer-links--plain{font-size:14px}

.footer-contact{font-style:normal;font-size:14px}
.footer-contact-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-block:.3em;
  color:rgba(247,242,247,.82);
}
.footer-contact-row + .footer-contact-row{border-top:1px solid rgba(201,184,214,.14)}
.footer-contact-label{
  flex:0 0 auto;
  min-width:2.6em;
  font-family:var(--font-label);
  font-size:10.5px;
  letter-spacing:.18em;
  color:rgba(201,184,214,.78);
}
.footer-contact-value{
  flex:1 1 auto;
  min-width:0;
  word-break:break-word;
  line-height:1.6;
}
.footer-note{
  margin-top:1em;
  max-width:40ch;
  font-size:12.5px;
  line-height:1.8;
  color:rgba(201,184,214,.72);
}
.copy-btn{
  flex:0 0 auto;
  padding:.35em .8em;
  border-radius:var(--pill);
  border:1px solid rgba(217,164,65,.45);
  background:rgba(217,164,65,.14);
  color:var(--gold-050);
  font-family:var(--font-label);
  font-size:10.5px;
  letter-spacing:.14em;
  cursor:pointer;
  transition:background-color .22s ease,border-color .22s ease,color .22s ease;
}
.copy-btn:hover{background:rgba(217,164,65,.26);border-color:var(--gold)}
.copy-btn[data-copied="true"]{
  border-color:var(--jc-500);
  background:rgba(23,131,110,.62);
  color:#fff;
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:clamp(30px,4vw,52px);
  padding-top:22px;
  border-top:1px solid rgba(201,184,214,.18);
}
.footer-legal{
  font-family:var(--font-label);
  font-size:12px;
  letter-spacing:.05em;
  color:rgba(201,184,214,.74);
}
.footer-legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  font-size:13px;
}
.footer-legal-links a{color:rgba(247,242,247,.7)}
.footer-legal-links a:hover{color:var(--gold-050)}

.to-top{
  position:fixed;
  right:clamp(14px,3vw,32px);
  bottom:clamp(14px,3vw,32px);
  z-index:320;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 18px;
  border-radius:var(--pill);
  border:1px solid rgba(217,164,65,.45);
  background:linear-gradient(135deg,rgba(42,15,58,.95),rgba(11,59,50,.95));
  color:var(--gold-050);
  font-size:13px;
  letter-spacing:.08em;
  cursor:pointer;
  box-shadow:0 18px 44px -22px rgba(23,20,28,.95);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,border-color .2s ease;
}
.to-top[data-show="true"]{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--gold);color:#fff}
.to-top-arrow{font-size:14px;line-height:1;color:var(--gold)}

/* ---------- 通用布局 ---------- */
.container{
  width:calc(100% - (var(--gutter) * 2));
  max-width:var(--shell);
  margin-inline:auto;
}
.container--narrow{max-width:820px}
.section{padding-block:clamp(36px,6vw,80px)}
.section--dark{
  padding:clamp(28px,4vw,56px);
  border-radius:var(--radius-lg);
  color:var(--mist);
  background:
    radial-gradient(80% 70% at 8% 0%,rgba(75,30,99,.85),transparent 68%),
    linear-gradient(158deg,#2A0F3A 0%,#0B3B32 88%);
}
.section-head{max-width:720px;margin-bottom:clamp(22px,3vw,42px)}
.section-title{font-size:clamp(26px,3.4vw,40px);letter-spacing:.02em}
.section-lead{
  margin-top:.8em;
  max-width:62ch;
  font-size:16.5px;
  line-height:1.9;
  color:rgba(23,20,28,.72);
}
.section--dark .section-lead{color:rgba(247,242,247,.76)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.7em;
  margin-bottom:.9em;
  font-family:var(--font-label);
  font-size:11.5px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--vc-700);
}
.eyebrow::before{
  content:"";
  width:26px;height:1.5px;border-radius:2px;
  background:var(--gold);
}
.section--dark .eyebrow{color:var(--gold-050)}

.grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

.divider{
  height:1px;
  margin-block:clamp(24px,4vw,44px);
  border:0;
  background:linear-gradient(90deg,rgba(217,164,65,.75),rgba(201,184,214,.3),transparent);
}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  padding:.85em 1.6em;
  border:1px solid transparent;
  border-radius:var(--pill);
  font-family:var(--font-body);
  font-size:15px;
  font-weight:600;
  line-height:1.1;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .24s ease,background-color .24s ease,color .24s ease,border-color .24s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn--primary{
  background:linear-gradient(120deg,var(--gold),#EAC57C);
  color:var(--vc-900);
  box-shadow:0 16px 36px -20px rgba(217,164,65,.95);
}
.btn--ghost{
  border-color:rgba(201,184,214,.45);
  background:rgba(247,242,247,.05);
  color:var(--mist);
}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-050)}
.btn--jade{
  background:linear-gradient(120deg,var(--jc-900),var(--jc-500));
  color:var(--mist);
}
.btn--small{padding:.62em 1.15em;font-size:13.5px}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:.42em .9em;
  border:1px solid rgba(201,184,214,.5);
  border-radius:var(--pill);
  background:rgba(122,62,153,.07);
  color:var(--vc-700);
  font-family:var(--font-label);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  line-height:1.4;
}
.tag--gold{border-color:rgba(217,164,65,.55);background:rgba(217,164,65,.16);color:#5E3F02}
.tag--jade{border-color:rgba(23,131,110,.42);background:rgba(23,131,110,.12);color:var(--jc-900)}
.tag--violet{border-color:rgba(122,62,153,.36);background:rgba(122,62,153,.12);color:var(--vc-700)}

.card{
  position:relative;
  padding:clamp(20px,2.6vw,32px);
  border-radius:var(--radius-md);
  background:#fff;
  box-shadow:var(--shadow-soft);
  transition:transform .26s ease,box-shadow .26s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.card--dark{
  color:var(--mist);
  background:
    radial-gradient(90% 80% at 100% 0%,rgba(122,62,153,.55),transparent 66%),
    linear-gradient(155deg,#2A0F3A,#0B3B32);
  box-shadow:0 26px 60px -34px rgba(11,59,50,.9);
}
.card--dark:hover{box-shadow:0 0 0 1px rgba(217,164,65,.55),0 30px 70px -34px rgba(11,59,50,.95)}

.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:4 / 3;
  border-radius:var(--radius-md);
  background:linear-gradient(145deg,var(--vc-700),var(--jc-900));
}
.media-frame img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.media-frame:hover img{transform:scale(1.03)}
.media-frame::after{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,transparent 46%,rgba(23,20,28,.55));
}
.media-frame--wide{aspect-ratio:16 / 9}
.media-frame--tall{aspect-ratio:3 / 4}

.prose{
  max-width:var(--reading);
  font-size:17px;
  line-height:1.9;
  color:rgba(23,20,28,.88);
}
.prose > * + *{margin-top:1.05em}
.prose h2{font-size:clamp(22px,2.6vw,30px);margin-top:1.9em;letter-spacing:.02em}
.prose h3{font-size:clamp(18px,2vw,22px);margin-top:1.5em}
.prose ul{list-style:disc;padding-left:1.25em}
.prose ol{list-style:decimal;padding-left:1.35em}
.prose li + li{margin-top:.4em}
.prose strong{color:var(--vc-900);font-weight:600}
.prose a{color:var(--jc-500);text-decoration:underline;text-underline-offset:.2em}
.prose blockquote{
  margin:0;
  padding:.2em 0 .2em 1.1em;
  border-left:3px solid var(--gold);
  color:rgba(23,20,28,.72);
}
.prose code{
  padding:.12em .45em;
  border-radius:6px;
  background:rgba(122,62,153,.1);
  font-family:var(--font-label);
  font-size:.9em;
}
.section--dark .prose,
.section--dark .prose strong{color:rgba(247,242,247,.9)}

.breadcrumbs{
  font-family:var(--font-label);
  font-size:11.5px;
  letter-spacing:.12em;
  color:rgba(23,20,28,.55);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:.6em}
.breadcrumbs li{display:flex;align-items:center;gap:.6em}
.breadcrumbs li + li::before{content:"/";color:var(--gold);opacity:.85}
.breadcrumbs a{color:var(--vc-700)}
.breadcrumbs a:hover{color:var(--vc-900)}
.section--dark .breadcrumbs{color:rgba(201,184,214,.7)}
.section--dark .breadcrumbs a{color:var(--gold-050)}

.toc{font-size:14px}
.toc-title{
  margin-bottom:.9em;
  font-family:var(--font-label);
  font-size:11px;
  letter-spacing:.22em;
  color:var(--vc-700);
}
.toc-list{display:grid;gap:2px}
.toc-link{
  display:block;
  padding:.55em .9em;
  border-left:2px solid transparent;
  border-radius:0 12px 12px 0;
  color:rgba(23,20,28,.7);
  line-height:1.6;
  text-decoration:none;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.toc-link:hover{background:rgba(122,62,153,.09);color:var(--vc-900);text-decoration:none}
.toc-link[aria-current="true"]{
  border-left-color:var(--gold);
  background:rgba(217,164,65,.18);
  color:var(--vc-900);
  font-weight:600;
}
.section--dark .toc-title{color:var(--gold)}
.section--dark .toc-link{color:rgba(247,242,247,.72)}
.section--dark .toc-link[aria-current="true"]{background:rgba(217,164,65,.2);color:var(--gold-050)}

.sr-only{
  position:absolute;
  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;
}

/* ---------- 滚动显现 ---------- */
html[data-js="true"] [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .6s ease,transform .65s cubic-bezier(.22,.7,.3,1);
}
html[data-js="true"] [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-columns{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-column--contact{grid-column:1 / -1}
}

@media (max-width:900px){
  .masthead-note{display:none}
  .header-inner{
    grid-template-columns:minmax(0,1fr);
    padding-block:18px 12px;
  }
  .masthead-title{letter-spacing:.1em}
  .nav-toggle{display:inline-flex}
  .site-nav{
    max-height:0;
    overflow:hidden;
    opacity:0;
    visibility:hidden;
    transition:max-height .4s ease,opacity .3s ease,visibility .3s ease;
  }
  .site-header[data-open="true"] .site-nav{
    max-height:74vh;
    overflow-y:auto;
    opacity:1;
    visibility:visible;
  }
  .header-nav{padding-bottom:16px}
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding-top:14px;
    counter-reset:navitem;
  }
  .nav-item{counter-increment:navitem;display:block}
  .nav-link{
    justify-content:flex-start;
    padding:.85em 1em;
    border-radius:14px;
    border-bottom:1px solid rgba(201,184,214,.13);
    font-size:16px;
  }
  .nav-link::before{
    content:counter(navitem,decimal-leading-zero);
    font-family:var(--font-label);
    font-size:11px;
    letter-spacing:.1em;
    color:rgba(217,164,65,.85);
  }
  .nav-link:hover{border-bottom-color:rgba(217,164,65,.4)}

  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-summary{max-width:52ch}
}

@media (max-width:860px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  body{font-size:16.5px}
  .prose{font-size:16.5px}
}

@media (max-width:560px){
  .masthead-title{font-size:clamp(21px,7vw,28px);letter-spacing:.08em}
  .masthead-tagline{font-size:10px;letter-spacing:.22em}
  .footer-columns{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{padding:10px 15px;font-size:12px}
  .to-top span:not(.to-top-arrow){display:none}
  .section--dark{padding:22px}
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html[data-js="true"] [data-reveal]{opacity:1;transform:none}
  .header-glow,.footer-glow{filter:none}
  .media-frame:hover img,.card:hover,.btn:hover,.to-top:hover{transform:none}
}