/* =========================================================
   亿兆赛事 · 共享样式表 /assets/site.css
   高原星图档案体系：深空靛蓝底 · 鎏金强调 · 暖铜档位 · 青蓝供货
   ========================================================= */

/* ---------- 01 · Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,h6,p,figure,figcaption,blockquote,dl,dd,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
img,picture,svg,video{display:block;max-width:100%;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;padding:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}
table caption{text-align:left;}

/* ---------- 02 · Tokens ---------- */
:root{
  /* 底色层 */
  --ink-abyss:#0A0E2A;
  --ink-deep:#141A45;
  --ink-panel:rgba(20,26,69,.62);

  /* 强调层 */
  --gold:#E8B33C;
  --gold-soft:#F6DFA0;
  --nebula:#7B5FD6;
  --nebula-deep:#443593;

  /* 价格档位层 */
  --copper-base:#B87333;
  --copper-mid:#D9974E;
  --copper-top:#F0C46A;

  /* 供货等级层 */
  --cyan-stock:#4FC3D9;
  --cyan-plan:#8FDCEA;
  --white-custom:#EAF7FB;

  /* 文本层 */
  --text:#E6EAF5;
  --text-dim:rgba(230,234,245,.68);
  --text-faint:rgba(230,234,245,.44);

  /* 线条 */
  --line:rgba(232,179,60,.30);
  --line-soft:rgba(230,234,245,.13);
  --line-glass:rgba(123,95,214,.30);

  /* 字体 */
  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  /* 尺度 */
  --shell:1240px;
  --shell-wide:1400px;
  --gutter:clamp(1.05rem,4vw,2.75rem);
  --rhythm:clamp(3.4rem,7.5vw,7rem);
  --radius:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 03 · Base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink-abyss);
  color:var(--text);
  font-family:var(--font-body);
  font-size:clamp(15px,.28vw + 14.2px,17px);
  font-weight:400;
  line-height:1.9;
  letter-spacing:.012em;
  overflow-x:hidden;
}

/* 星点与星云辉光：全部由渐变生成，不依赖任何图片资源 */
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-repeat:no-repeat;
  background-image:
    radial-gradient(circle 1.4px at 7% 9%, rgba(234,247,251,.62), transparent),
    radial-gradient(circle 1px at 19% 34%, rgba(234,247,251,.42), transparent),
    radial-gradient(circle 1.9px at 33% 6%, rgba(246,223,160,.66), transparent),
    radial-gradient(circle 1.1px at 46% 26%, rgba(234,247,251,.38), transparent),
    radial-gradient(circle 1.5px at 62% 13%, rgba(143,220,234,.55), transparent),
    radial-gradient(circle 1px at 74% 39%, rgba(234,247,251,.36), transparent),
    radial-gradient(circle 1.7px at 88% 7%, rgba(246,223,160,.50), transparent),
    radial-gradient(circle 1.2px at 96% 30%, rgba(234,247,251,.34), transparent),
    radial-gradient(1000px 620px at 84% -6%, rgba(123,95,214,.22), transparent 64%),
    radial-gradient(820px 520px at 2% 16%, rgba(68,53,147,.26), transparent 62%),
    radial-gradient(760px 480px at 58% 106%, rgba(79,195,217,.11), transparent 64%);
}

::selection{background:var(--gold);color:var(--ink-abyss);}

#main-content{scroll-margin-top:150px;}

/* ---------- 04 · 骨架工具 ---------- */
.wrap{
  width:min(var(--shell),100% - 2 * var(--gutter));
  margin-inline:auto;
}

.section{
  position:relative;
  padding-block:var(--rhythm);
}
.section--tight{padding-block:clamp(2rem,4vw,3.2rem);}

.rule{
  height:1px;
  border:0;
  background:linear-gradient(90deg,transparent,var(--line) 22%,var(--line) 78%,transparent);
}

.grid{
  display:grid;
  gap:var(--grid-gap,clamp(1.2rem,2.6vw,2.4rem));
}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--asym{grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);}
.grid--rail{grid-template-columns:minmax(84px,.32fr) minmax(0,2fr);}

/* ---------- 05 · 文字与注释 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.7rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.3em;
  color:var(--gold);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:30px;
  height:1px;
  flex:none;
  background:linear-gradient(90deg,var(--gold),transparent);
}

.vnote{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1;
  letter-spacing:.34em;
  color:var(--nebula);
}
.vnote--gold{color:var(--gold-soft);}

.prose{
  max-width:62ch;
  color:var(--text-dim);
  font-size:clamp(15px,.9vw + 12.6px,16.5px);
  line-height:1.95;
}
.prose > * + *{margin-top:1.15em;}
.prose h2,.prose h3,.prose h4{
  font-family:var(--font-display);
  font-weight:700;
  color:var(--white-custom);
  letter-spacing:.05em;
  line-height:1.4;
}
.prose h2{font-size:clamp(1.35rem,2.4vw,1.85rem);}
.prose h3{font-size:clamp(1.1rem,1.7vw,1.35rem);}
.prose strong{color:var(--white-custom);font-weight:600;}
.prose a{color:var(--gold-soft);border-bottom:1px solid rgba(232,179,60,.42);}
.prose a:hover{color:var(--gold);border-bottom-color:var(--gold);}
.prose ul,.prose ol{padding-left:1.15rem;}
.prose ul li{list-style:none;position:relative;padding-left:.9rem;}
.prose ul li+li{margin-top:.5em;}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;top:.85em;
  width:5px;height:5px;
  background:var(--nebula);
  transform:rotate(45deg);
}
.prose ol{list-style:decimal;color:var(--text-dim);}
.prose ol li+li{margin-top:.5em;}
.prose ol li::marker{color:var(--gold);font-family:var(--font-mono);}

.stat{display:block;}
.stat__value{
  display:block;
  font-family:var(--font-mono);
  font-weight:600;
  font-size:clamp(2.4rem,7vw,5.5rem);
  line-height:.95;
  letter-spacing:-.02em;
  color:var(--white-custom);
  font-variant-numeric:tabular-nums;
}
.stat__value--gold{color:var(--gold);}
.stat__label{
  display:block;
  margin-top:.75rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.26em;
  color:var(--text-faint);
}

/* ---------- 06 · 卡片与玻璃层 ---------- */
.card{
  position:relative;
  padding:clamp(1.15rem,2.4vw,2rem);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(20,26,69,.72),rgba(10,14,42,.55));
  transition:transform .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--line);
  box-shadow:0 26px 52px -32px rgba(0,0,0,.95);
}
.card__index{
  display:block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  color:var(--gold);
  margin-bottom:.85rem;
}

.glass{
  border:1px solid var(--line-glass);
  border-radius:var(--radius);
  background:linear-gradient(140deg,rgba(123,95,214,.16),rgba(68,53,147,.07));
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}

/* ---------- 07 · 标签系统 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.22rem .68rem;
  border:1px solid currentColor;
  border-radius:999px;
  background:rgba(123,95,214,.10);
  color:var(--nebula);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  line-height:1.7;
  white-space:nowrap;
}
.tag--copper-1{color:var(--copper-base);background:rgba(184,115,51,.12);}
.tag--copper-2{color:var(--copper-mid);background:rgba(217,151,78,.12);}
.tag--copper-3{color:var(--copper-top);background:rgba(240,196,106,.12);}
.tag--cyan-1{color:var(--cyan-stock);background:rgba(79,195,217,.12);}
.tag--cyan-2{color:var(--cyan-plan);background:rgba(143,220,234,.12);}
.tag--white{color:var(--white-custom);background:rgba(234,247,251,.10);}

/* ---------- 08 · 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55rem;
  padding:.82rem 1.6rem;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(232,179,60,.06);
  color:var(--gold-soft);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  line-height:1.5;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.btn:hover{
  background:var(--gold);
  border-color:var(--gold);
  color:var(--ink-abyss);
  box-shadow:0 12px 32px -14px rgba(232,179,60,.75);
}
.btn:active{transform:translateY(1px);}
.btn--solid{
  background:var(--gold);
  border-color:var(--gold);
  color:var(--ink-abyss);
}
.btn--solid:hover{background:var(--gold-soft);border-color:var(--gold-soft);}
.btn--ghost{
  background:transparent;
  border-color:var(--line-soft);
  color:var(--text-dim);
}
.btn--ghost:hover{
  background:transparent;
  border-color:var(--cyan-stock);
  color:var(--white-custom);
  box-shadow:none;
}

/* ---------- 09 · 图片容器基础（供页面阶段放置媒体） ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  isolation:isolate;
  aspect-ratio:var(--media-ratio,16 / 9);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  background:
    linear-gradient(152deg,rgba(68,53,147,.42),rgba(10,14,42,.92) 68%),
    radial-gradient(120% 90% at 78% 10%,rgba(123,95,214,.38),transparent 62%),
    radial-gradient(90% 80% at 10% 92%,rgba(79,195,217,.18),transparent 64%);
}
.media > img,
.media > picture > img,
.media > svg,
.media > video{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  margin:0;
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(10,14,42,0) 44%,rgba(10,14,42,.74) 100%);
}
.media--wide{--media-ratio:21 / 9;}
.media--tall{--media-ratio:3 / 4;}
.media--square{--media-ratio:1 / 1;}
.media--flat::after{display:none;}

.media-caption{
  margin-top:.7rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--text-faint);
}

/* ---------- 10 · 面包屑 ---------- */
.breadcrumbs{
  padding-top:1.2rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--text-faint);
}
.breadcrumbs ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.55rem;
}
.breadcrumbs li{display:flex;align-items:center;gap:.55rem;}
.breadcrumbs li + li::before{content:"›";color:var(--nebula);}
.breadcrumbs a{color:var(--text-dim);transition:color .22s var(--ease);}
.breadcrumbs a:hover{color:var(--gold-soft);}

/* =========================================================
   11 · 页头 —— 居中刊头导航
   ========================================================= */
.skip-link{
  position:fixed;
  top:0;
  left:50%;
  z-index:200;
  padding:.72rem 1.35rem;
  border-radius:0 0 999px 999px;
  background:var(--gold);
  color:var(--ink-abyss);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  transform:translate(-50%,-140%);
  transition:transform .25s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0);}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(10,14,42,.96) 0%,rgba(10,14,42,.86) 100%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line);
}

.header-inner{
  position:relative;
  max-width:var(--shell-wide);
  margin-inline:auto;
  padding:clamp(.6rem,1.3vw,1.05rem) var(--gutter) 0;
}

.header-rail{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:clamp(.7rem,1.8vw,1.4rem);
  min-height:26px;
}

.quarter-tag{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  color:var(--text-faint);
  white-space:nowrap;
}
.quarter-dot{
  width:6px;
  height:6px;
  flex:none;
  border-radius:50%;
  background:var(--cyan-stock);
  box-shadow:0 0 0 3px rgba(79,195,217,.18),0 0 14px rgba(79,195,217,.7);
}

.header-cta{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.36rem .95rem;
  border:1px solid rgba(232,179,60,.55);
  border-radius:999px;
  color:var(--gold-soft);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  line-height:1.7;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.header-cta::after{content:"→";font-size:12px;}
.header-cta:hover{background:var(--gold);border-color:var(--gold);color:var(--ink-abyss);}

.masthead{
  text-align:center;
  padding:clamp(.3rem,1vw,.7rem) 0 clamp(.55rem,1.5vw,1.05rem);
}
.masthead-brand{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.8rem,4.6vw,3.05rem);
  line-height:1.05;
  letter-spacing:.16em;
  text-indent:.16em;
  color:var(--white-custom);
  text-shadow:0 0 36px rgba(232,179,60,.28);
  transition:text-shadow .35s var(--ease),color .35s var(--ease);
}
.masthead-brand:hover{
  color:#FFFFFF;
  text-shadow:0 0 46px rgba(232,179,60,.55);
}
.masthead-sub{
  margin-top:.6rem;
  font-family:var(--font-mono);
  font-size:clamp(9.5px,.7vw,11.5px);
  letter-spacing:.42em;
  text-indent:.42em;
  color:var(--gold-soft);
  opacity:.85;
}

.nav-toggle{display:none;}

.site-nav{border-top:1px solid var(--line-soft);}

.nav-list{
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
  justify-content:center;
  gap:clamp(.55rem,2.4vw,2.6rem);
  padding:.72rem 0 .82rem;
}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:.26rem 0;
  color:var(--text-dim);
  font-size:13.5px;
  font-weight:500;
  letter-spacing:.24em;
  text-indent:.24em;
  transition:color .22s var(--ease);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .32s var(--ease);
}
.nav-list a:hover{color:var(--white-custom);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a[aria-current="page"]{color:var(--gold);}
.nav-list a[aria-current="page"]::after{transform:scaleX(1);}

.scroll-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--nebula-deep),var(--cyan-stock) 55%,var(--gold));
  pointer-events:none;
}

/* =========================================================
   12 · 页脚
   ========================================================= */
.site-footer{
  position:relative;
  margin-top:var(--rhythm);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(20,26,69,0) 0%,rgba(20,26,69,.78) 26%,#0B1030 100%);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--gold) 28%,var(--gold-soft) 50%,var(--gold) 72%,transparent);
  opacity:.72;
}

.footer-inner{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.75fr) minmax(0,1.2fr);
  gap:clamp(1.6rem,3.4vw,3.4rem);
  align-items:start;
  max-width:var(--shell);
  margin-inline:auto;
  padding:clamp(2.6rem,5vw,4.4rem) var(--gutter) clamp(1.6rem,3vw,2.4rem);
}

.footer-brand-name{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(1.3rem,2.4vw,1.85rem);
  line-height:1.2;
  letter-spacing:.12em;
  color:var(--white-custom);
}
.footer-brand-sub{
  margin-top:.55rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.3em;
  color:var(--gold-soft);
  opacity:.8;
}
.footer-brand::after{
  content:"";
  display:block;
  width:76px;
  height:1px;
  margin-top:1.15rem;
  background:linear-gradient(90deg,var(--gold),transparent);
}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:clamp(1.1rem,2.4vw,2rem);
}
.footer-col-title{
  margin-bottom:.85rem;
  padding-bottom:.5rem;
  border-bottom:1px solid var(--line-soft);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.28em;
  color:var(--text-faint);
}
.footer-col li + li{margin-top:.15rem;}
.footer-col a{
  display:inline-block;
  padding:.26rem 0;
  color:var(--text-dim);
  font-size:13.5px;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a::before{
  content:"";
  display:inline-block;
  width:4px;
  height:4px;
  margin-right:.62rem;
  vertical-align:middle;
  background:var(--nebula);
  transform:rotate(45deg);
  transition:background .2s var(--ease);
}
.footer-col a:hover{color:var(--gold-soft);transform:translateX(2px);}
.footer-col a:hover::before{background:var(--gold);}

.footer-contact-line{
  display:block;
  padding:.24rem 0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--text-dim);
  word-break:break-word;
}
.footer-contact-key{
  display:inline-block;
  min-width:3.2em;
  margin-right:.5rem;
  color:var(--gold-soft);
  font-size:10.5px;
  letter-spacing:.2em;
}
.footer-note{
  margin-top:1rem;
  padding-top:.9rem;
  border-top:1px solid var(--line-soft);
  max-width:34ch;
  color:var(--text-faint);
  font-size:12.5px;
  line-height:1.85;
}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.6rem 1.6rem;
  max-width:var(--shell);
  margin-inline:auto;
  padding:1.15rem var(--gutter) 2rem;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--text-faint);
}
.footer-icp{color:var(--cyan-plan);opacity:.8;}

/* =========================================================
   13 · 显现动画
   ========================================================= */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
[data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* =========================================================
   14 · 焦点与无障碍
   ========================================================= */
:focus-visible{
  outline:2px solid var(--gold-soft);
  outline-offset:3px;
  border-radius:2px;
}
.site-header :focus-visible,
.site-footer :focus-visible{outline-offset:2px;}

/* =========================================================
   15 · 响应式
   ========================================================= */
@media (max-width:1020px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid--asym,
  .grid--rail{grid-template-columns:minmax(0,1fr);}
  .grid--rail .vnote{
    writing-mode:horizontal-tb;
    letter-spacing:.34em;
  }
  .footer-inner{grid-template-columns:minmax(0,1fr);gap:2.2rem;}
  .footer-note{max-width:none;}
}

@media (max-width:860px){
  #main-content{scroll-margin-top:96px;}

  .header-rail{display:none;}

  .header-inner{padding-top:.65rem;}
  .masthead{padding:.25rem 0 .6rem;}
  .masthead-brand{font-size:clamp(1.5rem,7.4vw,2.05rem);letter-spacing:.12em;text-indent:.12em;}
  .masthead-sub{margin-top:.45rem;font-size:9.5px;letter-spacing:.28em;text-indent:.28em;}

  .nav-toggle{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:.65rem;
    width:100%;
    padding:.62rem 1rem .68rem;
    border-top:1px solid var(--line-soft);
    color:var(--gold-soft);
    font-family:var(--font-mono);
    font-size:11.5px;
    letter-spacing:.3em;
    text-indent:.3em;
    transition:color .22s var(--ease);
  }
  .nav-toggle:hover{color:var(--gold);}
  .nav-toggle-mark{
    position:relative;
    display:block;
    width:16px;
    height:8px;
    flex:none;
  }
  .nav-toggle-mark::before,
  .nav-toggle-mark::after{
    content:"";
    position:absolute;
    left:0;
    width:100%;
    height:1px;
    background:currentColor;
    transition:transform .26s var(--ease),top .26s var(--ease);
  }
  .nav-toggle-mark::before{top:0;}
  .nav-toggle-mark::after{top:auto;bottom:0;}
  .nav-toggle[aria-expanded="true"] .nav-toggle-mark::before{top:4px;transform:rotate(45deg);}
  .nav-toggle[aria-expanded="true"] .nav-toggle-mark::after{bottom:3px;transform:rotate(-45deg);}

  .site-nav{
    display:none;
    border-top:1px solid var(--line-soft);
  }
  .site-nav[data-open]{display:block;}
  .nav-list{
    flex-direction:column;
    gap:0;
    padding:.3rem 0 .8rem;
  }
  .nav-list li{border-bottom:1px solid var(--line-soft);}
  .nav-list li:last-child{border-bottom:0;}
  .nav-list a{
    display:block;
    padding:.85rem 0;
    font-size:14.5px;
    letter-spacing:.22em;
    text-indent:.22em;
  }
  .nav-list a::after{display:none;}

  .footer-base{flex-direction:column;align-items:flex-start;}
}

@media (max-width:600px){
  .grid--2,
  .grid--3{grid-template-columns:minmax(0,1fr);}
  .wrap{width:min(var(--shell),100% - 2 * 1.05rem);}
  .stat__value{font-size:clamp(2rem,11vw,3rem);}
  .footer-nav{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));}
}

/* =========================================================
   16 · 降低动效偏好
   ========================================================= */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  [data-reveal]{opacity:1 !important;transform:none !important;}
  .scroll-progress{display:none;}
  .nav-list a:hover{transform:none;}
  .footer-col a:hover{transform:none;}
  .card:hover{transform:none;}
}