/* =========================================================
   澳门王牌官网 · /assets/site.css
   共享层：重置 / 变量 / 中文排版 / 页头 / 页脚 / 通用组件
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#0B2B24;
  --ink-deep:#06170F;
  --paper:#F5EFE2;
  --paper-2:#E9DCBF;
  --gold:#C9A227;
  --gold-bright:#E9C765;
  --rose:#B0536C;
  --cyan:#4F93AA;
  --mist:#8FA79C;
  --line:#2A4A41;

  --wrap:1280px;
  --gap:clamp(20px,2.6vw,36px);
  --pad-y:clamp(48px,7vw,104px);
  --radius:2px;

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",Georgia,"Times New Roman",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;

  --t-display:clamp(42px,7vw,92px);
  --t-h1:clamp(30px,4.4vw,52px);
  --t-h2:clamp(23px,2.9vw,36px);
  --t-h3:clamp(18px,1.9vw,23px);
  --t-body:17px;
  --t-small:14px;
  --t-meta:12.5px;

  --shadow-note:0 14px 40px rgba(6,23,15,.32);
  --shadow-panel:0 -20px 60px rgba(6,23,15,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-deep);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:var(--t-body);
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,pre{margin:0}
h1,h2,h3,h4,h5,h6{font-family:var(--font-serif);font-weight:600;line-height:1.22;letter-spacing:-.01em}
hr{border:0;border-top:1px solid var(--line);margin:0}
table{border-collapse:collapse;width:100%}
:focus{outline:none}
:focus-visible{outline:2px solid var(--gold-bright);outline-offset:3px;border-radius:var(--radius)}
::selection{background:var(--gold);color:var(--ink-deep)}

/* ---------- 3. 跳过链接 ---------- */
.skip-link{
  position:absolute;left:16px;top:8px;z-index:400;
  display:inline-block;padding:10px 18px;
  background:var(--gold);color:var(--ink-deep);
  font-size:var(--t-small);letter-spacing:.08em;
  transform:translateY(-160%);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 4. 布局容器 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-inline:clamp(16px,4vw,32px)}
.wrap--narrow{max-width:880px}
.section{padding-block:var(--pad-y);position:relative}
.section--ink{background:var(--ink);color:var(--paper)}
.section--deep{background:var(--ink-deep);color:var(--paper)}
.section--paper{
  background-color:var(--paper);
  color:var(--ink);
  background-image:
    repeating-linear-gradient(90deg,rgba(42,74,65,.10) 0 1px,transparent 1px 88px),
    repeating-linear-gradient(180deg,rgba(42,74,65,.07) 0 1px,transparent 1px 88px);
}
.grid-lines{
  background-image:
    repeating-linear-gradient(90deg,rgba(143,167,156,.10) 0 1px,transparent 1px 96px),
    repeating-linear-gradient(180deg,rgba(143,167,156,.07) 0 1px,transparent 1px 96px);
}
.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--sidebar{grid-template-columns:minmax(240px,.85fr) minmax(0,2fr);align-items:start}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}
.stack{display:flex;flex-direction:column;gap:var(--gap)}
.stack--tight{gap:clamp(10px,1.4vw,18px)}
.cluster{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center}

/* ---------- 5. 中文排版与字阶 ---------- */
.t-display{font-family:var(--font-serif);font-weight:700;font-size:var(--t-display);line-height:1.04;letter-spacing:-.025em}
.t-h1{font-family:var(--font-serif);font-weight:700;font-size:var(--t-h1);line-height:1.14;letter-spacing:-.02em}
.t-h2{font-family:var(--font-serif);font-weight:600;font-size:var(--t-h2);line-height:1.22}
.t-h3{font-family:var(--font-serif);font-weight:600;font-size:var(--t-h3);line-height:1.35}
.t-body{font-size:var(--t-body);line-height:1.75}
.t-small{font-size:var(--t-small);line-height:1.7}
.t-meta{font-size:var(--t-meta);line-height:1.6;color:var(--mist);letter-spacing:.05em}
.t-num{
  font-family:var(--font-serif);
  font-variant-numeric:tabular-nums;
  font-weight:600;
  letter-spacing:-.04em;
  line-height:1;
  color:var(--gold-bright);
}
.eyebrow{
  display:inline-block;
  font-size:var(--t-meta);
  font-weight:500;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}
.section--paper .eyebrow{color:#4F6B60}
.eyebrow--gold{color:var(--gold)}
.lead{font-size:clamp(17px,1.5vw,20px);line-height:1.7;color:var(--paper)}
.section--paper .lead{color:#20443A}
.prose{max-width:64ch;font-size:var(--t-body);line-height:1.78}
.prose p+p{margin-top:1em}
.prose h2{margin-top:1.6em;font-size:var(--t-h2)}
.prose h3{margin-top:1.3em;font-size:var(--t-h3)}
.prose__dark,.prose--dark{color:var(--paper)}
.prose--paper{color:var(--ink)}
.rule-gold{width:64px;height:1px;background:var(--gold);border:0}
.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}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 22px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--paper);
  font-size:var(--t-small);
  letter-spacing:.08em;
  line-height:1.2;
  border-radius:var(--radius);
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--gold{border-color:var(--gold);color:var(--gold-bright)}
.btn--gold:hover{background:var(--gold);color:var(--ink-deep)}
.btn--solid{background:var(--gold);border-color:var(--gold);color:var(--ink-deep)}
.btn--solid:hover{background:var(--gold-bright);border-color:var(--gold-bright)}
.btn--ghost{color:var(--mist);border-color:var(--line)}
.btn--ghost:hover{color:var(--gold-bright);border-color:var(--gold)}
.btn--paper{background:var(--paper);border-color:var(--paper);color:var(--ink)}
.btn--paper:hover{background:var(--paper-2);border-color:var(--paper-2)}
.btn--sm{padding:8px 14px;font-size:var(--t-meta)}
.btn__arrow{font-family:var(--font-serif);color:var(--gold)}

/* ---------- 7. 页头 ---------- */
.site-header{position:relative;z-index:100;background:var(--ink-deep)}
.scroll-progress{
  position:fixed;left:0;top:0;z-index:300;
  width:100%;height:2px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold) 0%,var(--gold-bright) 55%,var(--cyan) 100%);
  pointer-events:none;
}
.header-top{
  background-color:var(--ink);
  background-image:
    repeating-linear-gradient(90deg,rgba(143,167,156,.10) 0 1px,transparent 1px 96px),
    repeating-linear-gradient(180deg,rgba(143,167,156,.07) 0 1px,transparent 1px 96px);
  border-bottom:1px solid var(--line);
}
.header-top__inner{
  display:flex;align-items:center;gap:clamp(16px,2.4vw,32px);
  min-height:78px;padding-block:14px;
}
.brand{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.brand__mark{
  display:grid;place-items:center;
  width:44px;height:44px;flex:0 0 44px;
  border:1px solid var(--gold);
  color:var(--gold-bright);
  font-family:var(--font-serif);font-size:20px;font-weight:600;line-height:1;
  background:linear-gradient(150deg,rgba(201,162,39,.14),rgba(201,162,39,0));
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.brand:hover .brand__mark{border-color:var(--gold-bright);color:var(--paper)}
.brand__text{display:flex;flex-direction:column;gap:2px}
.brand__name{font-family:var(--font-serif);font-size:clamp(17px,1.5vw,21px);font-weight:600;letter-spacing:.06em;color:var(--paper)}
.brand__line{font-size:var(--t-meta);letter-spacing:.14em;color:var(--mist)}
.header-note{
  font-size:var(--t-small);letter-spacing:.14em;color:var(--mist);
  padding-left:clamp(16px,2vw,28px);border-left:1px solid var(--line);
}
.header-meta{margin-left:auto;display:flex;align-items:center;gap:clamp(10px,1.4vw,18px)}
.version-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 13px;
  border:1px solid var(--line);
  font-size:var(--t-meta);letter-spacing:.08em;color:var(--gold-bright);
  white-space:nowrap;
}
.version-badge__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--gold-bright);
  box-shadow:0 0 0 3px rgba(201,162,39,.16);
}
.header-cta{white-space:nowrap}

/* 下层栏目带 */
.header-nav{background:var(--ink-deep);border-bottom:1px solid var(--line)}
.header-nav__inner{
  display:flex;align-items:stretch;justify-content:space-between;gap:20px;
  min-height:54px;
}
.nav{flex:1 1 auto;min-width:0}
.nav__list{display:flex;flex-wrap:wrap;align-items:stretch}
.nav__item{display:flex}
.nav__link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:8px;
  padding:16px clamp(10px,1.4vw,18px);
  color:var(--paper);
  font-size:15px;letter-spacing:.03em;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav__idx{
  font-family:var(--font-serif);font-size:11px;letter-spacing:.1em;
  color:var(--mist);transition:color .2s var(--ease);
}
.nav__label{position:relative}
.nav__note{display:none}
.nav__link::after{
  content:"";position:absolute;left:clamp(10px,1.4vw,18px);right:clamp(10px,1.4vw,18px);bottom:8px;
  height:1px;background:var(--gold);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav__link:hover{color:var(--gold-bright);background:rgba(201,162,39,.06)}
.nav__link:hover .nav__idx{color:var(--gold)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--gold-bright)}
.nav__link[aria-current="page"] .nav__idx{color:var(--gold)}
.nav__link[aria-current="page"]::after{transform:scaleX(1)}

/* 移动端抽屉按钮 */
.nav-toggle{display:none}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  background-color:var(--ink-deep);
  background-image:
    repeating-linear-gradient(90deg,rgba(143,167,156,.10) 0 1px,transparent 1px 96px),
    repeating-linear-gradient(180deg,rgba(143,167,156,.06) 0 1px,transparent 1px 96px);
  color:var(--paper);
  padding-top:clamp(44px,6vw,76px);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--gold) 0 18%,var(--rose) 18% 30%,var(--cyan) 30% 42%,var(--line) 42% 100%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1.1fr 1.2fr 1fr;
  gap:clamp(24px,4vw,52px);
  padding-bottom:clamp(28px,4vw,56px);
}
.footer-col{min-width:0}
.footer-brand{
  font-family:var(--font-serif);font-size:clamp(19px,1.7vw,23px);
  font-weight:600;letter-spacing:.06em;color:var(--paper);
}
.footer-desc{margin-top:10px;font-size:var(--t-small);line-height:1.7;color:var(--mist);max-width:30ch}
.footer-version{
  display:inline-flex;align-items:baseline;gap:10px;
  margin-top:16px;padding:7px 12px;border:1px solid var(--line);
  font-size:var(--t-meta);letter-spacing:.08em;color:var(--mist);
}
.footer-version__num{
  font-family:var(--font-serif);font-size:18px;font-variant-numeric:tabular-nums;
  color:var(--gold-bright);letter-spacing:-.02em;
}
.footer-title{
  position:relative;
  font-family:var(--font-sans);font-size:var(--t-meta);font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--gold);
  padding-bottom:10px;margin-bottom:14px;
}
.footer-title::after{
  content:"";position:absolute;left:0;bottom:0;width:38px;height:1px;background:var(--gold);
}
.footer-list{display:flex;flex-direction:column;gap:2px}
.footer-list a{color:var(--paper);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-list a:hover{color:var(--gold-bright);padding-left:4px}
.footer-list--index li{border-bottom:1px solid rgba(42,74,65,.7)}
.footer-list--index li:last-child{border-bottom:0}
.footer-list--index a{display:block;padding:9px 0;font-size:var(--t-small);letter-spacing:.03em}
.footer-list--contact li{display:flex;gap:12px;padding:7px 0;border-bottom:1px solid rgba(42,74,65,.55)}
.footer-list--contact li:last-child{border-bottom:0}
.footer-list__key{
  flex:0 0 64px;padding-top:2px;
  font-size:var(--t-meta);letter-spacing:.06em;color:var(--gold-bright);
}
.footer-list__val{flex:1 1 auto;font-size:var(--t-small);color:var(--mist);overflow-wrap:anywhere}
.footer-icp{
  font-family:var(--font-serif);font-size:15px;letter-spacing:.04em;
  color:var(--paper);padding-bottom:10px;
}
.footer-list--legal a{
  display:inline-block;padding:5px 0;font-size:var(--t-small);
  color:var(--cyan);
}
.footer-list--legal a:hover{color:var(--gold-bright)}
.footer-legal-note{margin-top:12px;font-size:var(--t-meta);line-height:1.65;color:var(--mist);max-width:26ch}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom__inner{
  display:flex;flex-wrap:wrap;gap:6px 24px;justify-content:space-between;align-items:center;
  padding:18px 0;font-size:var(--t-meta);letter-spacing:.06em;color:var(--mist);
}

/* ---------- 9. 通用组件 ---------- */
.card{
  position:relative;
  background:var(--paper);color:var(--ink);
  border:1px solid var(--line);
  padding:clamp(20px,2.6vw,32px);
}
.card--dark{background:var(--ink);color:var(--paper)}
.card--deep{background:var(--ink-deep);color:var(--paper)}
.card--paper2{background:var(--paper-2)}
.card__num{
  display:block;
  font-family:var(--font-serif);font-variant-numeric:tabular-nums;font-weight:600;
  font-size:clamp(34px,5.4vw,68px);line-height:1;letter-spacing:-.04em;
  color:var(--gold);
}
.card__title{font-family:var(--font-serif);font-size:var(--t-h3);margin-top:12px}
.card__meta{font-size:var(--t-meta);letter-spacing:.1em;color:var(--mist);margin-top:6px}
.card--dark .card__meta,.card--deep .card__meta{color:var(--mist)}

.index-band{
  display:flex;flex-wrap:wrap;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.index-band__item{
  flex:1 1 150px;min-width:150px;
  padding:16px 16px 18px;
  border-right:1px solid var(--line);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.index-band__item:last-child{border-right:0}
.index-band__item:hover{background:rgba(201,162,39,.12)}
.index-band__idx{
  display:block;font-family:var(--font-serif);font-size:12px;letter-spacing:.1em;
  color:var(--gold);margin-bottom:6px;
}
.index-band__label{font-size:var(--t-small);letter-spacing:.04em}

.timeline{position:relative;padding-left:clamp(20px,2vw,30px);border-left:1px solid var(--line)}
.timeline__item{position:relative;padding-bottom:clamp(22px,3vw,38px)}
.timeline__item:last-child{padding-bottom:0}
.timeline__item::before{
  content:"";position:absolute;left:calc(-1 * clamp(20px,2vw,30px) - 5px);top:8px;
  width:9px;height:9px;
  background:var(--ink-deep);border:1px solid var(--gold);
  transform:rotate(45deg);
  transition:background-color .3s var(--ease),box-shadow .3s var(--ease);
}
.timeline__item[data-lit]::before{
  background:var(--gold);
  box-shadow:0 0 0 4px rgba(201,162,39,.18);
}
.timeline__date{font-family:var(--font-serif);font-variant-numeric:tabular-nums;font-size:var(--t-small);letter-spacing:.08em;color:var(--gold)}
.timeline__title{font-family:var(--font-serif);font-size:var(--t-h3);margin-top:6px}

.note{
  position:relative;
  background:var(--paper-2);color:var(--ink);
  border-left:3px solid var(--rose);
  padding:14px 16px;
  font-size:var(--t-small);line-height:1.7;
  box-shadow:var(--shadow-note);
  max-width:34ch;
}
.note--rose{border-left-color:var(--rose)}
.note--gold{border-left-color:var(--gold)}
.note--cyan{border-left-color:var(--cyan)}
.note__label{
  display:block;margin-bottom:4px;
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--rose);
}
.note--gold .note__label{color:#8A6A10}
.note--cyan .note__label{color:#2F6B80}

.tick-frame{position:relative;border:1px solid var(--line)}
.tick-frame::before,.tick-frame::after{
  content:"";position:absolute;width:14px;height:14px;
  border:1px solid var(--gold);pointer-events:none;
}
.tick-frame::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.tick-frame::after{bottom:-1px;right:-1px;border-left:0;border-top:0}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border:1px solid var(--line);
  font-size:var(--t-meta);letter-spacing:.1em;color:var(--mist);
}
.tag--gold{border-color:var(--gold);color:var(--gold-bright)}
.tag--rose{border-color:var(--rose);color:var(--rose)}
.tag--cyan{border-color:var(--cyan);color:var(--cyan)}

.breadcrumb{font-size:var(--t-meta);letter-spacing:.06em;color:var(--mist)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__list li{display:flex;align-items:center;gap:8px}
.breadcrumb__list li+li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--mist);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.breadcrumb a:hover{color:var(--gold-bright);border-bottom-color:var(--gold)}
.breadcrumb [aria-current="page"]{color:var(--paper)}

/* ---------- 10. 图片容器基础（供页面阶段放置素材） ---------- */
.media{
  position:relative;display:block;margin:0;overflow:hidden;
  background:linear-gradient(150deg,#0B2B24 0%,#06170F 100%);
  border:1px solid var(--line);
}
.media__img{width:100%;height:100%;object-fit:cover;filter:saturate(.94) contrast(1.05)}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 14px 12px;
  font-size:var(--t-meta);line-height:1.6;letter-spacing:.06em;color:var(--paper);
  background:linear-gradient(180deg,rgba(6,23,15,0) 0%,rgba(6,23,15,.88) 100%);
}
.media--16x9{aspect-ratio:16/9}
.media--3x2{aspect-ratio:3/2}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--3x4{aspect-ratio:3/4}
.media--21x9{aspect-ratio:21/9}
.media--frame{border:1px solid var(--gold)}
.media--tilt{transform:rotate(-.6deg)}

/* ---------- 11. 显现动效 ---------- */
html.has-js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);
}
html.has-js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 12. 响应式 ---------- */
@media (max-width:1100px){
  .header-note{display:none}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:clamp(20px,3.4vw,40px)}
  .footer-col--legal{grid-column:1 / -1}
  .footer-legal-note{max-width:60ch}
}
@media (max-width:900px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--sidebar{grid-template-columns:minmax(0,1fr)}
  .span-4,.span-6,.span-8{grid-column:span 12}

  .header-top__inner{min-height:66px}
  .header-nav{border-top:0;background:transparent}
  .header-nav__inner{min-height:0;padding:0;display:block}

  .nav{
    position:fixed;left:0;right:0;bottom:0;top:auto;z-index:130;
    max-height:80vh;overflow-y:auto;
    background:var(--ink);
    border-top:1px solid var(--gold);
    box-shadow:var(--shadow-panel);
    padding:8px 0 calc(84px + env(safe-area-inset-bottom,0px));
    transform:translateY(105%);
    visibility:hidden;
    transition:transform .32s var(--ease),visibility .32s var(--ease);
  }
  .nav[data-open]{transform:translateY(0);visibility:visible}
  .nav__list{flex-direction:column}
  .nav__item{border-bottom:1px solid var(--line)}
  .nav__link{
    display:grid;
    grid-template-columns:38px minmax(0,1fr);
    grid-template-rows:auto auto;
    column-gap:10px;
    padding:14px clamp(16px,5vw,24px);
    align-items:center;
  }
  .nav__link::after{display:none}
  .nav__idx{grid-row:1 / 3;font-size:13px;align-self:center}
  .nav__label{font-family:var(--font-serif);font-size:17px;letter-spacing:.04em}
  .nav__note{display:block;grid-column:2;font-size:var(--t-meta);letter-spacing:.06em;color:var(--mist)}
  .nav__link[aria-current="page"]{background:rgba(201,162,39,.1)}
  .nav__link[aria-current="page"] .nav__note{color:var(--gold)}

  .nav-toggle{
    display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:140;
    width:64px;height:64px;border-radius:50%;
    background:var(--gold);color:var(--ink-deep);
    border:1px solid var(--gold-bright);
    box-shadow:0 14px 34px rgba(6,23,15,.5);
    transition:background-color .2s var(--ease),transform .2s var(--ease);
  }
  .nav-toggle:hover{background:var(--gold-bright);transform:translateY(-2px)}
  .nav-toggle__bars{position:relative;display:block;width:20px;height:12px}
  .nav-toggle__bars span{
    position:absolute;left:0;width:100%;height:1.5px;background:var(--ink-deep);
    transition:transform .22s var(--ease),opacity .22s var(--ease);
  }
  .nav-toggle__bars span:nth-child(1){top:0}
  .nav-toggle__bars span:nth-child(2){top:5px}
  .nav-toggle__bars span:nth-child(3){top:10px}
  .nav-toggle.is-open .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
  .nav-toggle.is-open .nav-toggle__bars span:nth-child(2){opacity:0}
  .nav-toggle.is-open .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
  .nav-toggle__label{font-size:11px;letter-spacing:.08em;line-height:1}
}
@media (max-width:760px){
  .header-cta{padding:10px 14px;font-size:var(--t-meta)}
  .version-badge{display:none}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col--brand,.footer-col--index,.footer-col--contact,.footer-col--legal{grid-column:1 / -1}
  .footer-desc,.footer-legal-note{max-width:46ch}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .span-4,.span-6,.span-8,.span-12{grid-column:1 / -1}
  .index-band__item{flex:1 1 100%;border-right:0;border-bottom:1px solid var(--line)}
  .index-band__item:last-child{border-bottom:0}
  body{font-size:16px}
}
@media (max-width:480px){
  .brand__mark{width:38px;height:38px;flex-basis:38px;font-size:17px}
  .brand__line{display:none}
  .footer-bottom__inner{flex-direction:column;align-items:flex-start}
}

/* ---------- 13. 无障碍偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.has-js [data-reveal]{opacity:1 !important;transform:none !important}
  .btn:hover,.nav-toggle:hover{transform:none}
  .footer-list a:hover{padding-left:0}
}