/* ============================================================
   云顶会馆 · /assets/site.css
   共享外壳：reset / tokens / 中文排版 / 页头 / 页脚 / 基础组件
   ============================================================ */

/* ---------- 01 · reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:where(a,button,summary,[tabindex]):focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:2px;}

/* ---------- 02 · tokens ---------- */
:root{
  --ink-900:#0E1B2C;
  --ink-850:#122132;
  --ink-800:#16283D;
  --ink-700:#1D3450;
  --silver:#C9D2DA;
  --silver-2:#EEF1F4;
  --paper:#F9F8F6;
  --amber:#D9863C;
  --amber-lift:#F0B27A;
  --celadon:#3F7F6E;
  --text:#1A2230;
  --note:#5A6B7B;
  --clay:#A9492F;
  --line-dark:rgba(201,210,218,.16);
  --line-light:rgba(26,34,48,.12);
  --font-display:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --max:1240px;
  --gutter:clamp(16px,4.4vw,56px);
  --r-sm:3px;
  --r-md:9px;
  --r-lg:18px;
  --ease:cubic-bezier(.22,.7,.28,1);
}

/* ---------- 03 · base ---------- */
body{
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-display);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.cp-main{display:block;background:var(--paper);}
#main-content{scroll-margin-top:96px;}
p{max-width:68ch;}
strong{font-weight:700;}

.cp-wrap{width:100%;max-width:var(--max);margin:0 auto;padding-inline:var(--gutter);}
.cp-section{padding-block:clamp(42px,6vw,88px);}
.cp-section--paper{background:var(--paper);}
.cp-section--silver{background:var(--silver-2);}
.cp-section--ink{background:var(--ink-900);color:var(--silver);}
.cp-section--ink .cp-display{color:#fff;}
.cp-section--ink .cp-lede{color:rgba(201,210,218,.82);}
.cp-section--ink .cp-rule{color:rgba(201,210,218,.55);}
.cp-section--ink .cp-rule::after{background:var(--line-dark);}

.cp-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--amber);line-height:1.4;
}
.cp-eyebrow::before{content:"";width:18px;height:1px;background:currentColor;flex:none;}
.cp-display{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(30px,5.2vw,60px);line-height:1.08;
  letter-spacing:-.02em;color:var(--text);
}
.cp-lede{
  font-family:var(--font-serif);font-size:clamp(16px,1.5vw,18px);
  line-height:1.85;color:var(--note);max-width:60ch;
}
.cp-mono{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  color:var(--note);font-variant-numeric:tabular-nums;
}
.cp-rule{
  display:flex;align-items:center;gap:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  color:var(--note);padding-block:10px;
}
.cp-rule::after{content:"";flex:1;height:1px;background:var(--line-light);}

/* ---------- 04 · grid ---------- */
.cp-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,2vw,28px);}
.cp-col-4{grid-column:span 4;}
.cp-col-5{grid-column:span 5;}
.cp-col-6{grid-column:span 6;}
.cp-col-7{grid-column:span 7;}
.cp-col-8{grid-column:span 8;}
.cp-col-12{grid-column:span 12;}
.cp-start-2{grid-column-start:2;}

.cp-layout{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,4fr);
  gap:clamp(24px,4vw,64px);
  align-items:start;
}
.cp-layout__aside{
  position:sticky;top:96px;
  display:flex;flex-direction:column;gap:18px;min-width:0;
}

/* ---------- 05 · header ---------- */
.cp-skip{
  position:fixed;top:10px;left:10px;z-index:300;
  padding:10px 18px;border-radius:2px;
  background:var(--amber);color:#171008;
  font-size:13px;font-weight:700;letter-spacing:.04em;
  transform:translateY(-180%);
  transition:transform .2s var(--ease);
}
.cp-skip:focus{transform:translateY(0);}

.cp-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink-900);
  color:var(--silver);
  border-bottom:1px solid var(--line-dark);
  transition:background .28s var(--ease),box-shadow .28s var(--ease);
}
.cp-header[data-stuck="true"]{
  background:#0A1522;
  box-shadow:0 12px 28px rgba(6,14,24,.38);
}
.cp-bar{
  width:100%;max-width:var(--max);margin:0 auto;
  padding-inline:var(--gutter);
  min-height:72px;
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto auto;
  align-items:center;
  gap:clamp(12px,2.2vw,32px);
  transition:min-height .28s var(--ease);
}
.cp-header[data-stuck="true"] .cp-bar{min-height:58px;}

.cp-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;min-width:0;}
.cp-brand__dot{
  width:9px;height:9px;flex:none;background:var(--amber);
  transform:rotate(45deg);
  transition:transform .32s var(--ease),background .2s var(--ease);
}
.cp-brand:hover .cp-brand__dot{transform:rotate(135deg);background:var(--amber-lift);}
.cp-brand__name{
  font-size:17px;font-weight:700;letter-spacing:.16em;line-height:1;white-space:nowrap;
}
.cp-brand__meta{
  font-family:var(--font-mono);font-size:9.5px;letter-spacing:.22em;
  color:rgba(201,210,218,.45);line-height:1;
  padding-left:10px;margin-left:2px;border-left:1px solid rgba(201,210,218,.2);
}

.cp-nav{display:flex;justify-content:center;min-width:0;}
.cp-nav__list{display:flex;align-items:stretch;gap:2px;}
.cp-nav__item{display:flex;}
.cp-nav__link{
  position:relative;
  display:flex;flex-direction:column;gap:3px;
  padding:9px clamp(6px,1vw,12px) 11px;
  color:var(--silver);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.cp-nav__idx{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;line-height:1;
  color:rgba(201,210,218,.42);
  transition:color .18s var(--ease);
}
.cp-nav__label{
  font-size:13.5px;line-height:1.1;letter-spacing:.02em;white-space:nowrap;
}
.cp-nav__link::after{
  content:"";position:absolute;left:clamp(6px,1vw,12px);right:clamp(6px,1vw,12px);bottom:3px;height:2px;
  background:transparent;transform:scaleX(.35);transform-origin:0 50%;
  transition:transform .24s var(--ease),background .18s var(--ease);
}
.cp-nav__link:hover{color:#fff;}
.cp-nav__link:hover .cp-nav__idx{color:var(--amber-lift);}
.cp-nav__link:hover::after{background:rgba(240,178,122,.45);transform:scaleX(1);}
.cp-nav__link[aria-current="page"]{color:#fff;}
.cp-nav__link[aria-current="page"] .cp-nav__idx{color:var(--amber);}
.cp-nav__link[aria-current="page"]::after{background:var(--amber);transform:scaleX(1);}
.cp-nav__aux{display:none;}

.cp-aux{display:flex;align-items:center;gap:8px;}
.cp-aux__link{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:7px 13px;border-radius:999px;
  border:1px solid rgba(201,210,218,.24);
  font-size:12.5px;letter-spacing:.03em;color:var(--silver);white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.cp-aux__link:hover{color:#fff;border-color:rgba(201,210,218,.55);background:rgba(201,210,218,.08);}
.cp-aux__link--cta{
  border-color:rgba(217,134,60,.55);
  background:rgba(217,134,60,.12);
  color:var(--amber-lift);
}
.cp-aux__link--cta:hover{background:var(--amber);border-color:var(--amber);color:#171008;}

.cp-burger{
  display:none;width:44px;height:44px;flex:none;
  border:1px solid rgba(201,210,218,.28);border-radius:999px;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.cp-burger:hover{border-color:rgba(240,178,122,.6);background:rgba(240,178,122,.08);}
.cp-burger__line{
  display:block;width:16px;height:1.5px;background:var(--silver);
  transition:transform .24s var(--ease),opacity .18s var(--ease);
}
.cp-burger[aria-expanded="true"] .cp-burger__line:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.cp-burger[aria-expanded="true"] .cp-burger__line:nth-child(2){opacity:0;}
.cp-burger[aria-expanded="true"] .cp-burger__line:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

.cp-progress{
  display:block;position:absolute;left:0;bottom:-1px;width:100%;height:2px;
  background:linear-gradient(90deg,var(--amber),var(--amber-lift));
  transform:scaleX(0);transform-origin:0 50%;
  will-change:transform;pointer-events:none;
}

/* ---------- 06 · footer ---------- */
.cp-footer{background:var(--ink-900);color:var(--silver);position:relative;}
.cp-footer__inner{
  width:100%;max-width:var(--max);margin:0 auto;
  padding:clamp(44px,6vw,80px) var(--gutter) clamp(30px,4vw,50px);
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:clamp(24px,4vw,56px);
}
.cp-foot__col{display:flex;flex-direction:column;gap:12px;min-width:0;}
.cp-foot__brandline{
  font-size:20px;font-weight:700;letter-spacing:.2em;line-height:1.2;color:#fff;
}
.cp-foot__body{
  font-size:13.5px;line-height:1.85;color:rgba(201,210,218,.68);max-width:26ch;
}
.cp-foot__icp{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:rgba(201,210,218,.45);margin-top:auto;padding-top:16px;
}
.cp-foot__title{
  display:flex;align-items:center;gap:9px;
  font-size:12px;font-weight:700;letter-spacing:.2em;line-height:1.4;
  color:var(--amber-lift);
}
.cp-foot__title::before{content:"";width:14px;height:1px;background:var(--amber);flex:none;}
.cp-foot__list{display:flex;flex-direction:column;gap:9px;}
.cp-foot__link{
  display:inline-block;font-size:13.5px;line-height:1.6;
  color:rgba(201,210,218,.78);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.cp-foot__link:hover{color:#fff;padding-left:6px;}
.cp-foot__list--plain{gap:10px;}
.cp-foot__list--plain li{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;}
.cp-foot__key{
  flex:none;min-width:58px;padding-top:3px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;
  color:rgba(201,210,218,.45);
}
.cp-foot__val{color:rgba(201,210,218,.88);word-break:break-word;min-width:0;}
.cp-foot__note{
  font-size:12px;line-height:1.85;color:rgba(201,210,218,.52);
  border-left:2px solid rgba(217,134,60,.5);padding-left:12px;max-width:36ch;
}
.cp-footer__batch{
  width:100%;max-width:var(--max);margin:0 auto;
  padding:16px var(--gutter) 24px;
  border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 28px;
  color:rgba(201,210,218,.45);
}

/* ---------- 07 · buttons ---------- */
.cp-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 22px;border-radius:999px;
  font-size:14px;font-weight:600;letter-spacing:.02em;line-height:1.2;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.cp-btn--primary{background:var(--amber);color:#171008;}
.cp-btn--primary:hover{background:var(--amber-lift);transform:translateY(-1px);}
.cp-btn--ghost{border-color:rgba(26,34,48,.22);color:var(--text);}
.cp-btn--ghost:hover{border-color:var(--amber);color:#96602B;}
.cp-btn--quiet{border-color:rgba(63,127,110,.4);color:var(--celadon);}
.cp-btn--quiet:hover{background:rgba(63,127,110,.1);}
.cp-section--ink .cp-btn--ghost{border-color:rgba(201,210,218,.32);color:var(--silver);}
.cp-section--ink .cp-btn--ghost:hover{border-color:var(--amber-lift);color:var(--amber-lift);}

/* ---------- 08 · breadcrumbs ---------- */
.cp-crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:18px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--note);
}
.cp-crumbs__item{display:inline-flex;align-items:center;gap:8px;}
.cp-crumbs__link{border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease);}
.cp-crumbs__link:hover{color:#96602B;border-color:var(--amber);}
.cp-crumbs__sep{opacity:.45;}
.cp-crumbs__current{color:var(--text);}

/* ---------- 09 · 索引块 ---------- */
.cp-index{border-top:1px solid var(--line-light);}
.cp-index__row{
  display:grid;grid-template-columns:64px minmax(0,1fr) auto;
  gap:16px;align-items:baseline;
  padding:16px 4px;border-bottom:1px solid var(--line-light);
  color:inherit;
  transition:background .2s var(--ease),padding-left .22s var(--ease);
}
.cp-index__row:hover{background:rgba(217,134,60,.07);padding-left:14px;}
.cp-index__no{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--amber);
  font-variant-numeric:tabular-nums;
}
.cp-index__title{font-size:16px;font-weight:600;line-height:1.5;letter-spacing:0;}
.cp-index__meta{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--note);white-space:nowrap;
}
.cp-section--ink .cp-index,
.cp-section--ink .cp-index__row{border-color:var(--line-dark);}
.cp-section--ink .cp-index__row:hover{background:rgba(240,178,122,.1);}
.cp-section--ink .cp-index__meta{color:rgba(201,210,218,.55);}

/* ---------- 10 · 层叠卡片 ---------- */
.cp-card{
  display:flex;flex-direction:column;gap:12px;min-width:0;
  padding:clamp(18px,2.4vw,28px);
  background:#fff;border:1px solid var(--line-light);border-radius:var(--r-md);
  transition:transform .26s var(--ease),border-color .2s var(--ease),box-shadow .26s var(--ease);
}
.cp-card:hover{transform:translateY(-3px);border-color:rgba(217,134,60,.45);box-shadow:0 16px 34px rgba(14,27,44,.08);}
.cp-card__no{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--amber);
}
.cp-card__title{font-size:18px;font-weight:700;letter-spacing:-.01em;line-height:1.4;}
.cp-card__text{font-size:14.5px;line-height:1.8;color:var(--note);}
.cp-card--offset{transform:translateY(clamp(0px,2.4vw,28px));}
.cp-card--offset:hover{transform:translateY(calc(clamp(0px,2.4vw,28px) - 3px));}
.cp-card--ink{background:var(--ink-800);border-color:var(--line-dark);color:var(--silver);}
.cp-card--ink .cp-card__title{color:#fff;}
.cp-card--ink .cp-card__text{color:rgba(201,210,218,.72);}
.cp-card--ink:hover{border-color:rgba(240,178,122,.5);box-shadow:0 16px 34px rgba(6,14,24,.4);}

/* ---------- 11 · 批次条 ---------- */
.cp-batch{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;
  padding:13px 18px;
  border-left:3px solid var(--amber);
  background:var(--silver-2);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.cp-batch__no{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--text);
  font-variant-numeric:tabular-nums;
}
.cp-batch__meta{font-size:13px;line-height:1.6;color:var(--note);}
.cp-batch--ink{background:var(--ink-800);border-left-color:var(--amber-lift);}
.cp-batch--ink .cp-batch__no{color:#fff;}
.cp-batch--ink .cp-batch__meta{color:rgba(201,210,218,.68);}
.cp-batch__seg{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;line-height:1.6;
}
.cp-batch__seg::before{
  content:"";width:5px;height:5px;flex:none;background:var(--amber);transform:rotate(45deg);
}
.cp-batch__seg--end{margin-left:auto;}

/* ---------- 12 · 旁注 ---------- */
.cp-note{
  padding:16px 18px;border-radius:var(--r-sm);
  background:var(--silver-2);
  border-left:2px solid rgba(217,134,60,.55);
  font-size:13px;line-height:1.85;color:var(--note);
}
.cp-note__label{
  display:block;margin-bottom:6px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;
  color:var(--celadon);
}
.cp-section--ink .cp-note{background:var(--ink-800);border-left-color:var(--amber-lift);color:rgba(201,210,218,.72);}

/* ---------- 13 · 图片容器 ---------- */
.cp-figure{display:flex;flex-direction:column;gap:10px;min-width:0;}
.cp-figure__media{
  position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;
  border-radius:var(--r-md);
  background:linear-gradient(150deg,var(--ink-700),var(--ink-900));
}
.cp-figure__media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 4px);
  opacity:.7;
}
.cp-figure__media img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1;}
.cp-figure__cap{
  font-size:12px;line-height:1.7;letter-spacing:.02em;color:var(--note);
}
.cp-figure--wide .cp-figure__media{aspect-ratio:21/9;}
.cp-figure--tall .cp-figure__media{aspect-ratio:3/4;}
.cp-section--ink .cp-figure__cap{color:rgba(201,210,218,.55);}

/* ---------- 14 · 状态与标签 ---------- */
.cp-dot{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--note);
}
.cp-dot::before{content:"";width:7px;height:7px;flex:none;border-radius:50%;background:var(--note);}
.cp-dot--live::before{background:var(--celadon);box-shadow:0 0 0 3px rgba(63,127,110,.16);}
.cp-dot--hot::before{background:var(--amber);box-shadow:0 0 0 3px rgba(217,134,60,.16);}
.cp-dot--wait::before{background:var(--silver);border:1px solid var(--note);}
.cp-tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;line-height:1.6;
  border:1px solid rgba(26,34,48,.16);color:var(--note);
}
.cp-tag--amber{border-color:rgba(217,134,60,.5);background:rgba(217,134,60,.09);color:#96602B;}
.cp-tag--celadon{border-color:rgba(63,127,110,.4);background:rgba(63,127,110,.09);color:var(--celadon);}

/* ---------- 15 · 可展开组 ---------- */
.cp-fold{border-top:1px solid var(--line-light);}
.cp-fold__item{border-bottom:1px solid var(--line-light);}
.cp-fold__trigger{
  display:flex;align-items:flex-start;gap:16px;width:100%;
  padding:18px 4px;text-align:left;
  color:var(--text);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.cp-fold__trigger:hover{color:#96602B;background:rgba(217,134,60,.05);}
.cp-fold__no{
  flex:none;padding-top:5px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--amber);
  font-variant-numeric:tabular-nums;
}
.cp-fold__q{flex:1;min-width:0;font-size:16.5px;font-weight:600;line-height:1.6;}
.cp-fold__icon{
  position:relative;flex:none;width:18px;height:18px;margin-top:5px;
}
.cp-fold__icon::before,
.cp-fold__icon::after{
  content:"";position:absolute;background:var(--note);border-radius:2px;
  transition:transform .22s var(--ease),opacity .18s var(--ease),background .18s var(--ease);
}
.cp-fold__icon::before{left:0;right:0;top:8px;height:2px;}
.cp-fold__icon::after{top:0;bottom:0;left:8px;width:2px;}
.cp-fold__trigger[aria-expanded="true"] .cp-fold__icon::before{background:var(--amber);}
.cp-fold__trigger[aria-expanded="true"] .cp-fold__icon::after{transform:scaleY(0);opacity:0;}
.cp-fold__panel{overflow:hidden;height:0;}
.cp-fold__panel[hidden]{display:none;}
.cp-fold__inner{
  padding:0 4px 22px 44px;
  font-size:15px;line-height:1.85;color:var(--note);max-width:64ch;
}
.cp-section--ink .cp-fold,
.cp-section--ink .cp-fold__item{border-color:var(--line-dark);}
.cp-section--ink .cp-fold__trigger{color:var(--silver);}
.cp-section--ink .cp-fold__inner{color:rgba(201,210,218,.72);}

/* ---------- 16 · 进场 ---------- */
[data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
  transition-delay:calc(var(--d,0) * 60ms);
}
[data-reveal].is-in{opacity:1;transform:none;}

/* ---------- 17 · responsive ---------- */
@media (max-width:1040px){
  .cp-bar{
    grid-template-columns:minmax(0,1fr) auto;
    min-height:60px;
    gap:12px;
  }
  .cp-header[data-stuck="true"] .cp-bar{min-height:56px;}
  .cp-aux{display:none;}
  .cp-burger{display:inline-flex;}
  .cp-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;justify-content:flex-start;
    padding:10px var(--gutter) 24px;
    background:var(--ink-800);
    border-bottom:1px solid var(--line-dark);
    box-shadow:0 26px 44px rgba(5,12,20,.5);
    max-height:calc(100vh - 60px);
    overflow-y:auto;
  }
  .cp-nav[data-open="true"]{display:flex;}
  .cp-nav__list{flex-direction:column;gap:0;width:100%;}
  .cp-nav__item{width:100%;border-bottom:1px solid rgba(201,210,218,.1);}
  .cp-nav__link{
    flex-direction:row;align-items:baseline;gap:14px;
    padding:14px 2px 15px;
  }
  .cp-nav__idx{width:24px;flex:none;font-size:11px;color:var(--amber);}
  .cp-nav__label{font-size:16px;}
  .cp-nav__link::after{left:0;right:auto;width:16px;bottom:0;}
  .cp-nav__aux{display:flex;gap:10px;padding-top:18px;}
  .cp-nav__aux .cp-aux__link{flex:1;}
}

@media (max-width:900px){
  .cp-layout{grid-template-columns:1fr;}
  .cp-layout__aside{position:static;}
  .cp-col-4,.cp-col-5,.cp-col-6,.cp-col-7,.cp-col-8{grid-column:span 12;}
  .cp-start-2{grid-column-start:auto;}
  .cp-card--offset,.cp-card--offset:hover{transform:none;}
  .cp-footer__inner{grid-template-columns:1fr 1fr;}
  .cp-footer__inner > .cp-foot__col--brand{grid-column:span 2;}
}

@media (max-width:640px){
  body{font-size:15.5px;}
  .cp-brand__meta{display:none;}
  .cp-brand__name{font-size:16px;letter-spacing:.12em;}
  .cp-index__row{grid-template-columns:52px minmax(0,1fr);gap:8px 12px;}
  .cp-index__meta{grid-column:2;white-space:normal;}
  .cp-batch__seg--end{margin-left:0;}
  .cp-footer__inner{grid-template-columns:1fr;padding-bottom:28px;}
  .cp-footer__inner > .cp-foot__col--brand{grid-column:auto;}
  .cp-foot__icp{margin-top:4px;padding-top:4px;}
  .cp-fold__inner{padding-left:0;}
  .cp-display{font-size:clamp(26px,8vw,34px);}
}

/* ---------- 18 · 无障碍降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1;transform:none;}
  .cp-card:hover,.cp-card--offset:hover,.cp-btn--primary:hover{transform:none;}
  .cp-nav__link::after{transition:none;}
}