/* ===== 美高美娱 V4 · 共享样式 /assets/site.css ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{list-style:none;padding:0}
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;width:100%}

:root{
  color-scheme:dark;
  --ink:#0B0A18;
  --ink-2:#0F0A22;
  --panel:#1B1035;
  --violet:#A855F7;
  --blue:#38BDF8;
  --gold:#E3B341;
  --teal:#5EEAD4;
  --text:#EDEAF6;
  --muted:#9C9AB8;
  --line:#2E2A44;
  --warn:#F59E0B;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono","Roboto Mono",Consolas,"Courier New",monospace;
  --maxw:1280px;
  --gut:24px;
  --r:3px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --measure:42em;
}

body{
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  color:var(--text);
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 520px at 78% -10%, rgba(168,85,247,.20), transparent 62%),
    radial-gradient(900px 460px at 4% 10%, rgba(56,189,248,.13), transparent 60%),
    linear-gradient(180deg,#0B0A18 0%,#0B0A18 55%,#0A0916 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.5;
  background-image:
    linear-gradient(to right, rgba(46,42,68,.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46,42,68,.32) 1px, transparent 1px);
  background-size:96px 96px;
  -webkit-mask-image:radial-gradient(120% 88% at 50% 0%, #000 18%, transparent 78%);
  mask-image:radial-gradient(120% 88% at 50% 0%, #000 18%, transparent 78%);
}

h1,h2,h3,h4,h5{font-weight:800;letter-spacing:-.02em;line-height:1.22}

:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:2px}

/* ---- 工具类 ---- */
.mgm-mono{font-family:var(--mono);font-size:.92em;letter-spacing:.04em}
.mgm-prose{max-width:var(--measure)}
.mgm-prose p{margin-bottom:1em}
.mgm-prose p:last-child{margin-bottom:0}
.mgm-lead{font-size:20px;line-height:1.7;font-weight:500;color:var(--text);max-width:var(--measure)}
.mgm-muted{color:var(--muted)}
.mgm-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}

/* ---- 跳至主要内容 ---- */
.mgm-skip{
  position:fixed;left:14px;top:-70px;z-index:200;
  padding:10px 18px;border-radius:var(--r);
  background:linear-gradient(180deg,#F0C558,#D9A62B);color:#22160A;
  font-size:14px;font-weight:700;
  transition:top .18s var(--ease);
}
.mgm-skip:focus{top:14px}

/* ---- 头部 ---- */
.mgm-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(11,10,24,.97),rgba(11,10,24,.84));
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.mgm-header__inner{
  position:relative;
  max-width:var(--maxw);margin:0 auto;
  padding:13px var(--gut);
  display:flex;align-items:center;gap:18px;
}
.mgm-brand{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:12px;
  padding:3px 6px 3px 3px;border:1px solid transparent;border-radius:var(--r);
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.mgm-brand:hover{border-color:rgba(168,85,247,.45);background:rgba(168,85,247,.08)}
.mgm-brand__mark{
  flex:0 0 auto;display:grid;place-items:center;
  width:42px;height:42px;
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--text);
  background:linear-gradient(150deg,rgba(168,85,247,.38),rgba(56,189,248,.18));
  border:1px solid rgba(168,85,247,.55);
  border-radius:var(--r);
  box-shadow:inset 0 0 18px rgba(168,85,247,.28);
}
.mgm-brand__text{display:flex;flex-direction:column;line-height:1.15}
.mgm-brand__name{font-size:18px;font-weight:800;letter-spacing:.02em}
.mgm-brand__domain{font-size:12px;color:var(--muted);letter-spacing:.02em}

.mgm-indexbar{
  flex:1 1 auto;min-width:0;overflow:hidden;
  display:flex;align-items:center;justify-content:center;gap:14px;
  padding:8px 16px;border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(180deg,rgba(27,16,53,.62),rgba(11,10,24,.34));
  font-size:12px;color:var(--muted);letter-spacing:.06em;
}
.mgm-indexbar__cell{white-space:nowrap}
.mgm-indexbar__cell--live{display:inline-flex;align-items:center;gap:8px;color:var(--text);opacity:.85}
.mgm-indexbar__sep{flex:0 0 auto;width:1px;height:14px;background:var(--line)}

.mgm-status{
  flex:0 0 auto;display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--teal);box-shadow:0 0 0 3px rgba(94,234,212,.14);
}

.mgm-nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.mgm-nav__list{display:flex;align-items:center;gap:2px}
.mgm-nav__link{
  position:relative;display:block;padding:9px 12px;
  font-size:14px;font-weight:500;color:var(--muted);
  border:1px solid transparent;border-radius:var(--r);
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.mgm-nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:1px;
  background:var(--teal);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.mgm-nav__link:hover{color:var(--text);border-color:var(--line)}
.mgm-nav__link:hover::after{transform:scaleX(1)}
.mgm-nav__link[aria-current="page"]{
  color:var(--text);background:rgba(168,85,247,.12);border-color:rgba(168,85,247,.5);
}
.mgm-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--violet)}
.mgm-nav__actions{
  display:flex;align-items:center;gap:8px;
  margin-left:10px;padding-left:12px;border-left:1px solid var(--line);
}

.mgm-nav__toggle{
  display:none;align-items:center;gap:9px;margin-left:auto;
  padding:10px 13px;border:1px solid var(--line);border-radius:var(--r);
  color:var(--text);font-size:13px;font-weight:600;
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.mgm-nav__toggle:hover{border-color:rgba(168,85,247,.5)}
.mgm-nav__toggle[aria-expanded="true"]{border-color:rgba(168,85,247,.65);background:rgba(168,85,247,.12)}
.mgm-nav__bars{display:grid;gap:4px;width:18px}
.mgm-nav__bars i{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.mgm-nav__toggle[aria-expanded="true"] .mgm-nav__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.mgm-nav__toggle[aria-expanded="true"] .mgm-nav__bars i:nth-child(2){opacity:0}
.mgm-nav__toggle[aria-expanded="true"] .mgm-nav__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mgm-nav__toggle-text{font-family:var(--mono);font-size:12px;letter-spacing:.08em}

.mgm-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--violet),var(--blue) 58%,var(--teal));
  transition:width .12s linear;
}

/* ---- 按钮 ---- */
.mgm-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 16px;border-radius:var(--r);border:1px solid var(--line);
  font-size:13px;font-weight:700;letter-spacing:.02em;color:var(--text);
  background:rgba(27,16,53,.6);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.mgm-btn:hover{transform:translateY(-1px)}
.mgm-btn--gold{
  color:#22160A;border-color:#F0C558;
  background:linear-gradient(180deg,#F0C558,#D9A62B);
  box-shadow:0 6px 18px rgba(227,179,65,.22);
}
.mgm-btn--gold:hover{box-shadow:0 10px 26px rgba(227,179,65,.34)}
.mgm-btn--ghost{color:var(--blue);border-color:rgba(56,189,248,.45)}
.mgm-btn--ghost:hover{border-color:var(--blue);background:rgba(56,189,248,.10)}
.mgm-btn--violet{border-color:rgba(168,85,247,.5)}
.mgm-btn--violet:hover{border-color:var(--violet);background:rgba(168,85,247,.14)}

/* ---- 主体骨架 ---- */
.mgm-main{position:relative;z-index:1;display:block;padding-bottom:8px}
#main-content{display:block}
.mgm-container{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}
.mgm-section{padding:56px 0}
.mgm-section--tight{padding:34px 0}

.mgm-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gut)}
.mgm-span-3{grid-column:span 3}
.mgm-span-4{grid-column:span 4}
.mgm-span-5{grid-column:span 5}
.mgm-span-6{grid-column:span 6}
.mgm-span-7{grid-column:span 7}
.mgm-span-8{grid-column:span 8}
.mgm-span-9{grid-column:span 9}
.mgm-span-12{grid-column:span 12}

.mgm-layout{
  display:grid;grid-template-columns:minmax(190px,3fr) minmax(0,9fr);
  gap:32px;align-items:start;
}
.mgm-rail{position:sticky;top:88px;display:grid;gap:14px}
.mgm-rail__title{
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  color:var(--muted);font-weight:600;
}
.mgm-rail__list{display:grid;gap:2px}
.mgm-rail__link{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;font-size:14px;color:var(--muted);
  border-left:2px solid var(--line);
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.mgm-rail__link:hover{color:var(--text);border-left-color:var(--blue);background:rgba(56,189,248,.07)}
.mgm-rail__link[aria-current="page"]{color:var(--text);border-left-color:var(--violet);background:rgba(168,85,247,.13)}

/* ---- 面板（章节画板） ---- */
.mgm-panel{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(160deg,rgba(27,16,53,.92),rgba(15,10,34,.86) 58%,rgba(11,10,24,.92));
  box-shadow:8px 8px 0 -1px rgba(46,42,68,.45),14px 16px 34px rgba(0,0,0,.45);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.mgm-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 200px at 100% 0,rgba(168,85,247,.16),transparent 70%);
}
.mgm-panel::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;pointer-events:none;
  background:linear-gradient(180deg,var(--violet),transparent 72%);
}
.mgm-panel--hover:hover{
  transform:translateY(-2px);border-color:rgba(168,85,247,.55);
  box-shadow:10px 12px 0 -1px rgba(46,42,68,.55),18px 22px 44px rgba(0,0,0,.55);
}
.mgm-panel__head{
  position:relative;display:grid;grid-template-columns:auto minmax(0,1fr);
  gap:6px 14px;align-items:baseline;
  padding:18px 22px 14px;border-bottom:1px solid var(--line);
}
.mgm-panel__no{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--violet)}
.mgm-panel__title{font-size:22px;font-weight:800;letter-spacing:-.02em}
.mgm-panel__sub{grid-column:2;font-size:13px;font-weight:400;letter-spacing:0;color:var(--muted);line-height:1.7}
.mgm-panel__body{position:relative;padding:20px 22px;color:var(--text)}
.mgm-panel__foot{
  margin:0 22px 18px;padding-top:12px;border-top:1px dashed var(--line);
  font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--muted);
}

/* ---- 锚点索引条 ---- */
.mgm-anchorbar{
  display:flex;gap:8px;overflow-x:auto;padding:10px 12px;
  border:1px solid var(--line);border-radius:var(--r);
  background:rgba(15,10,34,.72);
  scrollbar-width:thin;
}
.mgm-anchorbar__link{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;font-size:13px;color:var(--muted);
  border:1px solid transparent;border-radius:var(--r);
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.mgm-anchorbar__link:hover{color:var(--text);border-color:rgba(56,189,248,.42)}
.mgm-anchorbar__link.is-active{
  color:var(--text);border-color:rgba(168,85,247,.6);background:rgba(168,85,247,.13);
}
.mgm-anchorbar__no{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--blue)}

/* ---- 面包屑 ---- */
.mgm-crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:16px 0;font-family:var(--mono);font-size:12px;
  letter-spacing:.04em;color:var(--muted);
}
.mgm-crumb a{border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
.mgm-crumb a:hover{color:var(--teal);border-bottom-color:var(--teal)}
.mgm-crumb__sep{color:var(--line)}
.mgm-crumb [aria-current="page"]{color:var(--text)}

/* ---- 标签 / 图例 / 警示 ---- */
.mgm-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border:1px solid var(--line);border-radius:999px;
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;
  color:var(--muted);background:rgba(27,16,53,.6);
}
.mgm-tag--gold{border-color:rgba(227,179,65,.5);color:var(--gold)}
.mgm-tag--violet{border-color:rgba(168,85,247,.5);color:#D8B4FE}
.mgm-tag--blue{border-color:rgba(56,189,248,.45);color:var(--blue)}

.mgm-legend{
  display:flex;flex-wrap:wrap;gap:8px 18px;
  padding:12px 14px;border:1px dashed var(--line);border-radius:var(--r);
  background:rgba(11,10,24,.5);font-size:12px;color:var(--muted);
}
.mgm-legend__item{display:inline-flex;align-items:center;gap:8px}
.mgm-legend__swatch{flex:0 0 auto;width:10px;height:10px;border-radius:2px;background:var(--violet)}
.mgm-legend__swatch--blue{background:var(--blue)}
.mgm-legend__swatch--gold{background:var(--gold)}
.mgm-legend__swatch--teal{background:var(--teal)}
.mgm-legend__swatch--warn{background:var(--warn)}

.mgm-notice{
  display:flex;gap:12px;padding:14px 16px;
  border:1px solid rgba(245,158,11,.32);border-left:3px solid var(--warn);
  border-radius:var(--r);background:rgba(245,158,11,.07);
  color:#F4E3C6;font-size:14px;line-height:1.7;
}
.mgm-notice__no{flex:0 0 auto;font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--warn)}

/* ---- 图片容器基础规则 ---- */
.mgm-figure{display:grid;gap:10px;margin:0}
.mgm-figure__frame{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(140deg,#1B1035,#0F0A22 58%,#0B0A18);
}
.mgm-figure__frame>img{width:100%;height:100%;object-fit:cover}
.mgm-figure__ph{
  position:absolute;inset:0;
  background-image:
    radial-gradient(320px 160px at 78% 18%,rgba(168,85,247,.34),transparent 68%),
    radial-gradient(280px 150px at 12% 84%,rgba(56,189,248,.24),transparent 66%),
    linear-gradient(to right,rgba(46,42,68,.7) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(46,42,68,.45) 1px,transparent 1px);
  background-size:auto,auto,44px 44px,44px 44px;
}
.mgm-figure__badge{
  position:absolute;left:10px;top:10px;z-index:2;
  padding:3px 9px;border:1px solid rgba(168,85,247,.5);border-radius:999px;
  background:rgba(11,10,24,.78);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:#D8B4FE;
}
.mgm-figure__caption{font-size:12px;line-height:1.7;color:var(--muted)}
.mgm-figure--16x9 .mgm-figure__frame{aspect-ratio:16/9}
.mgm-figure--4x3 .mgm-figure__frame{aspect-ratio:4/3}
.mgm-figure--3x4 .mgm-figure__frame{aspect-ratio:3/4}
.mgm-figure--1x1 .mgm-figure__frame{aspect-ratio:1/1}

/* ---- 折叠面板 ---- */
.mgm-fold{
  border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(180deg,rgba(27,16,53,.78),rgba(11,10,24,.62));
  transition:border-color .2s var(--ease);
}
.mgm-fold+.mgm-fold{margin-top:8px}
.mgm-fold[open]{border-color:rgba(168,85,247,.55)}
.mgm-fold>summary{
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;cursor:pointer;list-style:none;
  font-size:15px;font-weight:700;
}
.mgm-fold>summary::-webkit-details-marker{display:none}
.mgm-fold>summary::after{
  content:"+";margin-left:auto;font-family:var(--mono);
  font-size:15px;color:var(--blue);transition:color .18s var(--ease);
}
.mgm-fold[open]>summary::after{content:"–";color:var(--violet)}
.mgm-fold__no{flex:0 0 auto;font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--violet)}
.mgm-fold__body{padding:0 16px 16px 46px;font-size:14px;line-height:1.8;color:var(--muted)}
.mgm-fold__body p{margin-bottom:.7em}
.mgm-fold__body p:last-child{margin-bottom:0}

/* ---- 页脚 ---- */
.mgm-footer{
  position:relative;z-index:1;margin-top:64px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(15,10,34,.72),rgba(11,10,24,.99));
}
.mgm-footer__inner{
  max-width:var(--maxw);margin:0 auto;
  padding:48px var(--gut) 30px;display:grid;gap:26px;
}
.mgm-footer__head{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding-bottom:20px;border-bottom:1px solid var(--line);
}
.mgm-brand--footer{padding-left:0}
.mgm-brand--footer .mgm-brand__mark{width:36px;height:36px;font-size:11px}
.mgm-brand--footer .mgm-brand__name{font-size:16px}
.mgm-footer__hours{display:inline-flex;align-items:center;gap:9px;font-size:13px;color:var(--muted)}
.mgm-footer__grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:24px;
}
.mgm-footer__col{min-width:0}
.mgm-footer__title{
  margin-bottom:12px;font-family:var(--mono);font-size:11px;font-weight:600;
  letter-spacing:.16em;color:var(--muted);
}
.mgm-footer__list{display:grid;gap:8px}
.mgm-footer__list a{
  display:inline-block;font-size:14px;color:#C9C5DE;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.mgm-footer__list a:hover{color:var(--teal);border-bottom-color:var(--teal)}
.mgm-footer__contact{
  padding-top:20px;border-top:1px dashed var(--line);
  font-size:13px;line-height:1.9;color:var(--muted);
}
.mgm-footer__meta{
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:12px;letter-spacing:.04em;color:var(--muted);
}
.mgm-footer__copy{font-family:var(--sans);letter-spacing:.02em}

/* ---- 返回顶部 ---- */
.mgm-totop{
  position:fixed;right:18px;bottom:20px;z-index:80;
  padding:10px 14px;border:1px solid var(--line);border-radius:var(--r);
  background:rgba(27,16,53,.94);color:var(--text);
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  box-shadow:0 12px 26px rgba(0,0,0,.55);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.mgm-totop[data-visible]{opacity:1;pointer-events:auto;transform:none}
.mgm-totop:hover{border-color:var(--violet)}

/* ---- 显现协议 ---- */
.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.js [data-reveal].is-in{opacity:1;transform:none}

/* ---- 响应式 ---- */
@media (max-width:1180px){
  .mgm-indexbar{display:none}
}
@media (max-width:1024px){
  .mgm-layout{grid-template-columns:1fr;gap:24px}
  .mgm-rail{position:static}
  .mgm-rail__list{grid-auto-flow:column;grid-auto-columns:max-content;overflow-x:auto;gap:0}
  .mgm-rail__link{border-left:0;border-bottom:2px solid var(--line);white-space:nowrap}
  .mgm-rail__link:hover{border-left-color:transparent;border-bottom-color:var(--blue)}
  .mgm-rail__link[aria-current="page"]{border-left-color:transparent;border-bottom-color:var(--violet)}
  .mgm-span-3,.mgm-span-4,.mgm-span-5{grid-column:span 6}
  .mgm-span-7,.mgm-span-8,.mgm-span-9{grid-column:span 12}
}
@media (max-width:880px){
  :root{--gut:18px}
  .mgm-nav__toggle{display:inline-flex}
  .mgm-nav{
    position:absolute;left:var(--gut);right:var(--gut);top:calc(100% + 8px);
    margin:0;display:none;flex-direction:column;align-items:stretch;gap:12px;
    padding:14px;border:1px solid var(--line);border-radius:var(--r);
    background:linear-gradient(180deg,#150D2E,#0B0A18);
    box-shadow:0 24px 52px rgba(0,0,0,.62);
  }
  .mgm-nav[data-open]{display:flex}
  .mgm-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .mgm-nav__link{
    padding:11px 12px;font-size:15px;color:var(--text);
    border-color:var(--line);background:rgba(27,16,53,.42);
  }
  .mgm-nav__link::after{display:none}
  .mgm-nav__link[aria-current="page"]{border-color:rgba(168,85,247,.6);background:rgba(168,85,247,.16)}
  .mgm-nav__actions{
    margin:0;padding:12px 0 0;border-left:0;border-top:1px solid var(--line);
    flex-direction:column;align-items:stretch;
  }
  .mgm-nav__actions .mgm-btn{width:100%;padding:11px 16px}
  .mgm-section{padding:40px 0}
  .mgm-section--tight{padding:28px 0}
  .mgm-panel__head{padding:16px 16px 12px}
  .mgm-panel__body{padding:16px}
  .mgm-panel__foot{margin:0 16px 16px}
  .mgm-footer__inner{padding:36px var(--gut) 26px}
  .mgm-fold__body{padding:0 14px 14px 14px}
}
@media (max-width:680px){
  .mgm-span-3,.mgm-span-4,.mgm-span-5,.mgm-span-6,.mgm-span-7,.mgm-span-8,.mgm-span-9{grid-column:span 12}
  .mgm-brand__domain{display:none}
  .mgm-panel__title{font-size:19px}
  .mgm-lead{font-size:17px}
  .mgm-totop{right:12px;bottom:14px}
}

/* ---- 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;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .mgm-progress{transition:none}
  .mgm-panel--hover:hover,.mgm-btn:hover{transform:none}
}