/* ============================================================
   安博的方式 · 共享样式表  /assets/site.css
   外壳：固定悬浮胶囊导航 + 四栏页脚 + 通用档案组件
   ============================================================ */

/* ── 1. Reset ─────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0;}
ul,ol{list-style:none;}
img,svg,video,canvas{display:block;max-width:100%;}
img{height:auto;}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0;margin:0;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}
::selection{background:var(--cyan);color:var(--ink-deep);}

/* ── 2. 变量 ──────────────────────────────────────────────── */
:root{
  --ink-deep:#0B2A26;
  --ink-mid:#123A33;
  --ink-low:#08201D;
  --cyan:#35F0C8;
  --cyan-mist:#9BF5E2;
  --signal:#FF6A2B;
  --paper:#F5F1E8;
  --char:#14181A;
  --wine:#6E1F33;
  --indigo:#2B2A6E;
  --line:#5E7A72;

  --font-display:"Arial Narrow","Helvetica Neue Condensed","Roboto Condensed",system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:system-ui,-apple-system,"Segoe UI","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  --w:min(1240px,calc(100% - 3rem));
  --radius:14px;
  --radius-sm:10px;
  --pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 22px 44px -30px rgba(0,0,0,.95);
  --hair:1px solid rgba(94,122,114,.5);
  --hair-cyan:1px solid rgba(53,240,200,.32);
  --txt-dim:rgba(245,241,232,.72);
  --txt-faint:rgba(245,241,232,.52);
  --ink-dim:rgba(20,24,26,.74);
}

/* ── 3. 基础排版 ──────────────────────────────────────────── */
body{
  background:var(--ink-deep);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.16;
  letter-spacing:.005em;
}
strong,b{font-weight:600;}
small{font-size:.82rem;}
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:6px;
}
.section--paper :focus-visible,
.section--wine :focus-visible{outline-color:var(--signal);}

#main-content{display:block;padding-top:clamp(4.75rem,10vw,6.75rem);}

.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  letter-spacing:.02em;
}
.wrap{width:var(--w);margin-inline:auto;}

/* ── 4. 跳转链接 ──────────────────────────────────────────── */
.skip-link{
  position:fixed;
  top:.6rem;left:.6rem;z-index:200;
  transform:translateY(-220%);
  padding:.72rem 1.15rem;
  background:var(--cyan);
  color:var(--ink-deep);
  border-radius:var(--pill);
  font-weight:600;
  font-size:.9rem;
  letter-spacing:.04em;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0);}

/* ── 5. 头部 ─────────────────────────────────────────────── */
.masthead{
  position:fixed;
  inset:0 0 auto 0;
  z-index:60;
  padding-block:clamp(.7rem,1.5vw,1.05rem);
  background:linear-gradient(180deg,rgba(11,42,38,.95) 0%,rgba(11,42,38,.72) 62%,rgba(11,42,38,0) 100%);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:padding .28s var(--ease),background .28s var(--ease);
}
.masthead[data-shrunk="true"]{
  padding-block:.42rem;
  background:linear-gradient(180deg,rgba(11,42,38,.98) 0%,rgba(11,42,38,.88) 100%);
  box-shadow:0 14px 30px -26px rgba(0,0,0,.95);
}
.masthead__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(.6rem,2vw,1.4rem);
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:.68rem;
  padding:.28rem .55rem .28rem .28rem;
  border-radius:var(--pill);
  transition:background .24s var(--ease);
}
.brand:hover{background:rgba(53,240,200,.08);}
.brand__mark{
  display:grid;place-items:center;
  width:2.35rem;height:2.35rem;
  border-radius:50%;
  background:var(--cyan);
  color:var(--ink-deep);
  font-family:var(--font-display);
  font-weight:700;
  font-size:1rem;
  line-height:1;
}
.brand__text{display:flex;flex-direction:column;line-height:1.14;}
.brand__word{
  font-family:var(--font-display);
  font-weight:700;
  font-size:.98rem;
  letter-spacing:.1em;
}
.brand__sub{
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan-mist);
  transition:opacity .24s var(--ease);
}
.brand__index{
  padding:.16rem .5rem;
  border:var(--hair-cyan);
  border-radius:var(--pill);
  font-size:.64rem;
  letter-spacing:.14em;
  color:var(--cyan);
}
.masthead[data-shrunk="true"] .brand__sub{opacity:0;}

/* 胶囊导航 */
.navpill{
  justify-self:center;
  display:flex;
  align-items:center;
  padding:.28rem;
  border:1px solid rgba(155,245,226,.2);
  border-radius:var(--pill);
  background:rgba(18,58,51,.74);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 20px 40px -32px #000;
}
.navpill__list{display:flex;align-items:center;gap:.08rem;}
.navpill__link{
  display:inline-flex;
  align-items:center;
  gap:.42rem;
  min-height:44px;
  padding:.4rem .8rem;
  border-radius:var(--pill);
  color:var(--txt-dim);
  font-size:.9rem;
  letter-spacing:.03em;
  white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.navpill__num{
  font-size:.62rem;
  color:rgba(155,245,226,.62);
  transition:color .22s var(--ease);
}
.navpill__label{display:inline-block;}
.navpill__link:hover{color:var(--paper);background:rgba(53,240,200,.1);}
.navpill__link:hover .navpill__num{color:var(--cyan);}
.navpill__link[aria-current="page"]{
  color:var(--ink-deep);
  background:var(--cyan);
  box-shadow:0 10px 24px -16px rgba(53,240,200,.95);
}
.navpill__link[aria-current="page"] .navpill__num{color:rgba(11,42,38,.62);}
.masthead[data-shrunk="true"] .navpill__link{padding-inline:.66rem;font-size:.85rem;}
.masthead[data-shrunk="true"] .navpill__num{display:none;}
.masthead[data-shrunk="true"] .navpill__link[aria-current="page"] .navpill__num{display:inline;}

/* 右侧工具区 */
.head-tools{
  justify-self:end;
  display:flex;
  align-items:center;
  gap:.5rem;
}
.head-cta{white-space:nowrap;}

/* 移动端按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:.55rem;
  min-height:44px;
  padding:.5rem .95rem;
  border:var(--hair-cyan);
  border-radius:var(--pill);
  background:rgba(18,58,51,.82);
  color:var(--cyan-mist);
  font-size:.84rem;
  letter-spacing:.14em;
  cursor:pointer;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle:hover{color:var(--cyan);border-color:var(--cyan);}
.nav-toggle__bars{display:grid;gap:4px;width:18px;}
.nav-toggle__bars span{
  display:block;height:1.5px;
  background:currentColor;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5.5px) 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(-5.5px) rotate(-45deg);}

/* 阅读进度线 */
.meter{
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  overflow:hidden;
}
.meter__fill{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--cyan-mist) 62%,var(--signal) 100%);
  transform-origin:left center;
}

/* ── 6. 页脚 ─────────────────────────────────────────────── */
.site-foot{
  position:relative;
  margin-top:clamp(3rem,8vw,6rem);
  padding-block:clamp(2.6rem,6vw,4.4rem) clamp(1.6rem,3vw,2.2rem);
  background:linear-gradient(180deg,var(--ink-deep) 0%,var(--ink-low) 100%);
  border-top:1px solid rgba(155,245,226,.16);
  color:var(--txt-dim);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:clamp(1.5rem,3vw,3rem);
}
.foot-col{min-width:0;}
.foot-col__title{
  display:flex;align-items:center;gap:.55rem;
  margin-bottom:.95rem;
  font-family:var(--font-display);
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--cyan);
}
.foot-col__title::before{
  content:"";
  width:14px;height:1px;
  background:var(--cyan);
  flex:none;
}
.foot-brand{
  font-family:var(--font-display);
  font-size:1.32rem;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--paper);
}
.foot-line{
  margin-top:.6rem;
  font-size:.9rem;
  color:rgba(155,245,226,.78);
  max-width:36ch;
}
.foot-note{
  margin-top:.7rem;
  font-size:.78rem;
  line-height:1.7;
  color:var(--txt-faint);
  max-width:40ch;
}
.foot-list{display:grid;gap:.15rem;font-size:.92rem;}
.foot-list a{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  color:var(--txt-dim);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-list a:hover{color:var(--cyan);border-bottom-color:var(--cyan);}
.foot-list--plain li{
  font-size:.86rem;
  color:var(--txt-faint);
  line-height:1.85;
  word-break:break-word;
}
.foot-list--legal{
  margin-top:.85rem;
  font-size:.84rem;
}
.foot-icp{
  margin-top:.7rem;
  font-size:.76rem;
  letter-spacing:.08em;
  color:rgba(155,245,226,.6);
}

/* 年份刻度带 */
.scale{
  position:relative;
  margin-top:clamp(2rem,4.5vw,3.2rem);
  padding-top:1.05rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:.72rem;
  letter-spacing:.2em;
  color:rgba(155,245,226,.72);
}
.scale::before{
  content:"";
  position:absolute;inset:0 0 auto 0;height:1px;
  background:repeating-linear-gradient(90deg,rgba(155,245,226,.5) 0 1px,transparent 1px 14px);
}
.scale::after{
  content:"";
  position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,var(--cyan) 0 8%,rgba(53,240,200,.14) 56%,rgba(53,240,200,0) 100%);
}
.scale__end{display:inline-flex;align-items:center;gap:.5rem;}
.scale__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(53,240,200,.16);
}
.scale__end--live .scale__dot{
  background:var(--signal);
  box-shadow:0 0 0 3px rgba(255,106,43,.2);
}
.scale__end--live{color:var(--signal);}

/* 版权行 */
.foot-base{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:.4rem 1.5rem;
  margin-top:1.5rem;
  padding-top:1rem;
  border-top:1px solid rgba(94,122,114,.34);
  font-size:.78rem;
  letter-spacing:.04em;
  color:var(--txt-faint);
}

/* ── 7. 通用章节与版式 ───────────────────────────────────── */
.section{padding-block:clamp(3rem,7vw,6rem);}
.section--chapter{background:var(--ink-mid);}
.section--paper{background:var(--paper);color:var(--char);}
.section--wine{background:var(--wine);color:var(--paper);}
.section--indigo{background:var(--indigo);color:var(--paper);}

.sec-head{
  display:flex;
  align-items:baseline;
  gap:.9rem;
  padding-left:1rem;
  border-left:3px solid var(--cyan);
  margin-bottom:1.5rem;
}
.section--paper .sec-head{border-left-color:var(--wine);}
.sec-head__num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:.78rem;
  letter-spacing:.2em;
  color:var(--cyan);
}
.section--paper .sec-head__num{color:var(--wine);}
.sec-head__title{
  font-size:clamp(1.4rem,2.7vw,2.1rem);
}

.eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.section--paper .eyebrow{color:var(--wine);}

.lede{
  max-width:62ch;
  font-size:clamp(1.02rem,1.5vw,1.18rem);
  line-height:1.8;
  color:var(--txt-dim);
}
.section--paper .lede{color:var(--ink-dim);}

.prose{max-width:68ch;font-size:1.0625rem;line-height:1.78;}
.prose p+p{margin-top:1em;}
.prose h2,.prose h3{margin-top:1.8em;margin-bottom:.5em;}
.prose h3{font-size:1.22rem;}
.prose ul{list-style:none;margin-top:.8em;display:grid;gap:.4em;}
.prose ul li{padding-left:1.1rem;position:relative;}
.prose ul li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:6px;height:1px;background:var(--cyan);
}
.prose strong{color:var(--cyan);}
.section--paper .prose{color:var(--ink-dim);}
.section--paper .prose strong{color:var(--wine);}
.section--paper .prose ul li::before{background:var(--wine);}

.figure-num{
  display:block;
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(2.4rem,7vw,4.6rem);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--cyan);
}
.section--paper .figure-num{color:var(--wine);}

/* ── 8. 栅格与卡片 ───────────────────────────────────────── */
.grid{display:grid;gap:clamp(1rem,2vw,1.6rem);}
.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));}
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(1.2rem,4vw,3rem);}
.compare{
  display:grid;
  grid-template-columns:minmax(0,1fr) 1px minmax(0,1fr);
  gap:clamp(1rem,3vw,2rem);
  align-items:start;
}
.compare__rule{align-self:stretch;background:rgba(94,122,114,.5);}

@media (min-width:761px){
  .grid--stagger > *:nth-child(2n){margin-top:clamp(1rem,2.4vw,1.75rem);}
}

.card{
  position:relative;
  padding:1.25rem 1.3rem;
  border:var(--hair);
  border-radius:var(--radius);
  background:rgba(18,58,51,.55);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{
  border-color:var(--cyan);
  transform:translateY(-2px);
  box-shadow:var(--shadow);
}
.card__num{
  display:block;
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:.74rem;
  letter-spacing:.2em;
  color:var(--cyan);
  margin-bottom:.5rem;
}
.card__title{font-size:1.1rem;margin-bottom:.4rem;}
.section--paper .card{background:#fff;border-color:rgba(20,24,26,.12);}
.section--paper .card:hover{border-color:var(--wine);}
.section--paper .card__num{color:var(--wine);}
.section--wine .card,
.section--indigo .card{background:rgba(0,0,0,.18);border-color:rgba(255,255,255,.22);}

/* ── 9. 状态标签与按钮 ───────────────────────────────────── */
.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.16rem .6rem;
  border:var(--hair-cyan);
  border-radius:var(--pill);
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.1em;
  color:var(--cyan-mist);
}
.tag--signal{
  color:var(--signal);
  border-color:rgba(255,106,43,.45);
  background:rgba(255,106,43,.09);
}
.dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(53,240,200,.16);
  flex:none;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  min-height:44px;
  padding:.62rem 1.15rem;
  border:1px solid transparent;
  border-radius:var(--pill);
  font-size:.9rem;
  font-weight:600;
  letter-spacing:.06em;
  cursor:pointer;
  text-align:center;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--signal{
  background:var(--signal);
  color:#1A0D06;
  box-shadow:0 14px 30px -20px rgba(255,106,43,.95);
}
.btn--signal:hover{background:#FF8148;}
.btn--solid{background:var(--cyan);color:var(--ink-deep);}
.btn--solid:hover{background:var(--cyan-mist);}
.btn--ghost{border-color:rgba(155,245,226,.35);color:var(--cyan-mist);}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn--quiet{
  background:rgba(245,241,232,.06);
  border-color:rgba(245,241,232,.16);
  color:var(--paper);
}
.btn--quiet:hover{border-color:var(--cyan);color:var(--cyan);}
.section--paper .btn--ghost{border-color:rgba(110,31,51,.35);color:var(--wine);}
.section--paper .btn--ghost:hover{border-color:var(--wine);}

/* ── 10. 面包屑 / 时间轴 ─────────────────────────────────── */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.1em;
  color:var(--txt-faint);
}
.crumbs a{color:var(--cyan-mist);}
.crumbs a:hover{color:var(--cyan);}
.crumbs__sep{opacity:.45;}
.crumbs--on-paper{color:rgba(20,24,26,.55);}
.crumbs--on-paper a{color:var(--wine);}
.crumbs--on-paper a:hover{color:var(--signal);}

.timeline{position:relative;display:grid;gap:1.6rem;padding-left:1.7rem;}
.timeline::before{
  content:"";
  position:absolute;left:0;top:.45rem;bottom:.45rem;width:1px;
  background:linear-gradient(180deg,var(--cyan) 0%,rgba(53,240,200,.06) 100%);
}
.timeline__item{position:relative;}
.timeline__item::before{
  content:"";
  position:absolute;
  left:-1.7rem;top:.62rem;
  width:9px;height:9px;
  margin-left:-4px;
  border-radius:50%;
  background:var(--ink-deep);
  border:1px solid var(--cyan);
}
.timeline__year{
  display:block;
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:.86rem;
  letter-spacing:.18em;
  color:var(--cyan);
  margin-bottom:.2rem;
}

/* ── 11. 图像容器基座（页面阶段放 img/svg） ──────────────── */
.frame{
  position:relative;
  overflow:hidden;
  border:var(--hair);
  border-radius:var(--radius);
  aspect-ratio:16/10;
  background:
    radial-gradient(120% 90% at 18% 8%,rgba(53,240,200,.14),transparent 58%),
    linear-gradient(140deg,var(--ink-mid) 0%,var(--ink-deep) 58%,var(--ink-low) 100%);
}
.frame::after{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(90deg,rgba(155,245,226,.12) 1px,transparent 1px),
    linear-gradient(0deg,rgba(155,245,226,.12) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.45;
}
.frame > img,.frame > svg,.frame > video{
  position:relative;
  z-index:1;
  width:100%;height:100%;
  object-fit:cover;
}
.frame__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  padding:.85rem 1rem;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.08em;
  color:var(--cyan-mist);
  background:linear-gradient(180deg,transparent 0%,rgba(8,32,29,.9) 92%);
}
.frame--wide{aspect-ratio:21/9;}
.frame--square{aspect-ratio:1/1;}
.frame--portrait{aspect-ratio:3/4;}
.frame--tall{aspect-ratio:4/5;}

/* ── 12. 显现 ─────────────────────────────────────────────── */
.js-reveal .reveal{opacity:0;transform:translateY(8px);}
.js-reveal .reveal.is-visible{
  opacity:1;
  transform:none;
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}

/* ── 13. 响应式 ──────────────────────────────────────────── */
@media (max-width:1180px){
  .brand__index{display:none;}
  .navpill__link{padding-inline:.62rem;font-size:.85rem;}
}
@media (max-width:1080px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:2rem;}
}
@media (max-width:1024px){
  .masthead__inner{grid-template-columns:auto auto;justify-content:space-between;}
  .nav-toggle{display:inline-flex;}
  .brand__index{display:inline-block;}

  .navpill{
    position:fixed;
    left:50%;
    top:auto;
    bottom:max(1rem,env(safe-area-inset-bottom,1rem));
    transform:translate(-50%,150%);
    width:min(92vw,460px);
    padding:.5rem;
    background:rgba(11,42,38,.97);
    border-color:rgba(53,240,200,.3);
    box-shadow:0 34px 60px -32px rgba(0,0,0,.98);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    z-index:70;
    transition:transform .3s var(--ease),opacity .3s var(--ease),visibility .3s linear;
  }
  .masthead[data-open="true"] .navpill{
    transform:translate(-50%,0);
    opacity:1;
    visibility:visible;
    pointer-events:auto;
  }
  .navpill__list{flex-direction:column;width:100%;gap:.12rem;}
  .masthead[data-shrunk="true"] .navpill .navpill__link[aria-current="page"] .navpill__num{display:inline;}
  .navpill__link{
    width:100%;
    justify-content:flex-start;
    gap:.7rem;
    padding:.7rem 1rem;
    border-radius:var(--radius-sm);
    font-size:.95rem;
  }
  .navpill__num{display:inline !important;font-size:.68rem;}
  /* 移动端只保留四个主入口：首页 / 赛程工具台 / 变更通告 / 联络台 */
  .navpill__list > li:nth-child(2),
  .navpill__list > li:nth-child(5){display:none;}
}
@media (max-width:900px){
  .head-cta{display:none;}
}
@media (max-width:760px){
  :root{--w:min(1240px,calc(100% - 2rem));}
  body{line-height:1.72;}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr);}
  .grid--stagger > *:nth-child(2n){margin-top:0;}
  .split{grid-template-columns:minmax(0,1fr);}
  .compare{grid-template-columns:minmax(0,1fr);}
  .compare__rule{display:none;}
  .foot-grid{grid-template-columns:minmax(0,1fr);gap:1.8rem;}
  .foot-base{flex-direction:column;}
  .scale{font-size:.66rem;letter-spacing:.14em;}
  .brand__sub{display:none;}
}

/* ── 14. 减弱动效 ────────────────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .js-reveal .reveal{opacity:1 !important;transform:none !important;}
  .card:hover{transform:none;}
  .btn:active{transform:none;}
  .navpill{transition:none !important;}
}