/* ==========================================================================
   优德主站 · 共享样式表 /assets/site.css
   深夜数据舱 × 印刷索引卡：暗夜蓝底、荧光青数据高亮、暖金时间戳、玫红切换
   ========================================================================== */

/* 1. Reset ---------------------------------------------------------------- */
*,*::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,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}
hr{border:0;border-top:1px solid var(--line-soft)}
a{color:inherit}

/* 2. Tokens --------------------------------------------------------------- */
:root{
  --night:#0A1428;
  --deep:#101F3A;
  --cyan:#22E0D6;
  --cyan-line:#0F6F6B;
  --gold:#F2B441;
  --rose:#FF4D7E;
  --stone:#5A6472;
  --moss:#6E8B6A;
  --clay:#B4694A;
  --paper:#F4EFE4;
  --ink:#050A14;

  --paper-86:rgba(244,239,228,.86);
  --paper-70:rgba(244,239,228,.72);
  --paper-52:rgba(244,239,228,.54);
  --line-soft:rgba(15,111,107,.45);
  --line-faint:rgba(90,100,114,.38);

  --shell:1200px;
  --shell-wide:1360px;
  --gutter:24px;
  --radius:2px;

  --sans:system-ui,-apple-system,"Segoe UI","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Mono",Menlo,Consolas,monospace;

  --step-1:18px;
  --step-2:22px;
  --step-3:28px;
  --step-4:clamp(28px,4vw,40px);
  --step-5:clamp(34px,6vw,56px);

  --ease:cubic-bezier(.2,.7,.2,1);
}

/* 3. Base & 中文排版 ------------------------------------------------------ */
body{
  min-height:100vh;
  background-color:var(--night);
  background-image:
    radial-gradient(920px 540px at 88% -10%, rgba(34,224,214,.10), transparent 62%),
    radial-gradient(700px 460px at 2% 14%, rgba(255,77,126,.07), transparent 60%);
  background-repeat:no-repeat;
  color:var(--paper);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.is-locked{overflow:hidden}
::selection{background:rgba(34,224,214,.3);color:var(--paper)}

h1,h2,h3,h4{font-weight:900;letter-spacing:-.02em;line-height:1.14;color:var(--paper)}
h1{font-size:var(--step-5)}
h2{font-size:var(--step-4)}
h3{font-size:var(--step-2);font-weight:700;letter-spacing:-.01em}
h4{font-size:var(--step-1);font-weight:700;letter-spacing:0}
p{color:var(--paper-86)}

.mono,.num,[data-num]{font-family:var(--mono);font-variant-numeric:tabular-nums}
.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  color:var(--cyan);text-transform:none;
}
.lede{font-size:clamp(17px,2.1vw,20px);line-height:1.7;color:var(--paper-70);max-width:34em}
.prose{max-width:40em;color:var(--paper-86)}
.prose p+p{margin-top:1em}
.prose strong{color:var(--paper);font-weight:700}
.prose a{border-bottom:1px solid var(--line-soft);text-decoration:none}
.prose a:hover{border-color:var(--cyan);color:var(--cyan)}

:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:1px}
:target{scroll-margin-top:140px}

.skip-link{
  position:absolute;left:50%;top:0;z-index:200;
  transform:translate(-50%,-180%);
  background:var(--gold);color:var(--ink);
  padding:10px 18px;font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  text-decoration:none;transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0)}

/* 4. 布局原件 ------------------------------------------------------------ */
.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}
.container--wide{max-width:var(--shell-wide)}

.section{padding:56px 0;scroll-margin-top:132px}
.section--tight{padding:32px 0}
.section--deep{background:linear-gradient(180deg,rgba(16,31,58,.9),rgba(10,20,40,.6));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section__head{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:22px}
.section__index{
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  color:var(--cyan-line);transition:color .3s var(--ease);
}
[data-section].is-active .section__index{color:var(--cyan)}
.section__title{flex:1 1 auto;min-width:200px}
.section__lead{margin-bottom:26px;color:var(--paper-70);max-width:40em}

.grid{display:grid;gap:24px}
.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--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.grid--5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.stack{display:grid;gap:16px}

.ticks{height:8px;background-image:repeating-linear-gradient(90deg,var(--cyan-line) 0 1px,transparent 1px 8px);opacity:.55}
.band{
  position:relative;overflow:hidden;
  padding:28px 0;margin:8px 0;
  background:linear-gradient(90deg,rgba(34,224,214,.12),rgba(10,20,40,0) 58%),var(--deep);
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:min(36%,300px);
  background:var(--rose);opacity:.16;
  clip-path:polygon(0 0,100% 0,80% 100%,0 100%);
}
.band::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:min(26%,220px);
  background:var(--gold);opacity:.12;
  clip-path:polygon(22% 0,100% 0,100% 100%,0 100%);
}
.band>*{position:relative;z-index:1}

.track{position:relative;height:64px;border-top:1px solid var(--line-faint)}
.track svg{width:100%;height:100%;display:block}
.track__grid{stroke:var(--stone);stroke-width:1;stroke-dasharray:2 6;fill:none;opacity:.6}
.track__stroke{stroke:var(--cyan);stroke-width:1.5;fill:none}
.track__node{fill:var(--gold)}

/* 5. 按钮与控件 ---------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:13px;letter-spacing:.08em;
  padding:10px 16px;border-radius:var(--radius);
  border:1px solid var(--cyan-line);background:transparent;color:var(--paper);
  text-decoration:none;cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:var(--ink);font-weight:700}
.btn--primary:hover{background:var(--paper);border-color:var(--paper);box-shadow:0 6px 18px rgba(34,224,214,.22)}
.btn--ghost{color:var(--paper)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn--drawer{border-color:var(--line-soft);color:var(--paper-70)}
.btn--drawer:hover{border-color:var(--rose);color:var(--rose)}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none}

.chip{
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  padding:7px 12px;border:1px solid var(--line-soft);border-radius:var(--radius);
  background:transparent;color:var(--paper-70);cursor:pointer;
  transition:border-color .24s var(--ease),color .24s var(--ease),background .24s var(--ease);
}
.chip:hover{color:var(--paper);border-color:var(--cyan-line)}
.chip[aria-pressed="true"]{border-color:var(--cyan);color:var(--cyan);background:rgba(34,224,214,.1)}

.copy{
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  border:1px solid var(--line-soft);border-radius:var(--radius);
  background:transparent;color:var(--cyan);padding:5px 10px;cursor:pointer;
  transition:border-color .24s var(--ease),color .24s var(--ease),background .24s var(--ease);
}
.copy:hover{background:rgba(34,224,214,.1)}
.copy[data-copied="true"]{border-color:var(--gold);color:var(--gold);background:rgba(242,180,65,.12)}

.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 3px rgba(34,224,214,.16)}
.dot--rose{background:var(--rose);box-shadow:0 0 0 3px rgba(255,77,126,.16)}
.dot--gold{background:var(--gold);box-shadow:0 0 0 3px rgba(242,180,65,.16)}

/* 6. 头部刊头 ------------------------------------------------------------ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(12,24,48,.98),rgba(10,20,40,.94));
  border-bottom:1px solid var(--line-soft);
  box-shadow:0 12px 34px rgba(5,10,20,.55);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.header-progress{position:absolute;left:0;right:0;top:0;height:3px;background:rgba(15,111,107,.32)}
.header-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan-line),var(--cyan) 70%,var(--gold));
  transition:width .12s linear;
}
.header-inner{
  max-width:var(--shell);margin:0 auto;
  padding:12px var(--gutter) 8px;
  display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;gap:16px;
}
.header-inner__lead{grid-column:1;justify-self:start;display:flex;align-items:center;gap:10px;min-width:0}
.header-actions{grid-column:3;justify-self:end;display:flex;align-items:center;gap:10px;min-width:0}

.masthead{grid-column:2;text-align:center;display:grid;gap:4px;min-width:0}
.masthead__eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--cyan)}
.masthead__brand{
  font-size:clamp(24px,3.4vw,38px);font-weight:900;letter-spacing:-.02em;line-height:1.04;
  color:var(--paper);text-decoration:none;transition:color .24s var(--ease);
}
.masthead__brand:hover{color:var(--cyan)}
.masthead__sub{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--paper-52)}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:8px 12px;color:var(--paper);cursor:pointer;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars>span{display:block;height:1.5px;background:currentColor}
.nav-toggle__label{font-family:var(--mono);font-size:12px;letter-spacing:.12em}

.site-nav{border-top:1px solid rgba(15,111,107,.28)}
.site-nav__inner{
  position:relative;max-width:var(--shell);margin:0 auto;
  padding:0 var(--gutter) 10px;
  display:flex;align-items:center;justify-content:center;
}
.site-nav__list{display:flex;flex-wrap:wrap;justify-content:center;gap:4px}
.site-nav__list a{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border:1px solid transparent;border-radius:var(--radius);
  font-size:14px;letter-spacing:.08em;text-decoration:none;color:var(--paper-86);
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.site-nav__list a::before{content:"";width:6px;height:1px;background:var(--cyan-line);transition:width .24s var(--ease),background .24s var(--ease)}
.site-nav__list a:hover{background:var(--deep);border-color:var(--cyan-line);color:var(--paper)}
.site-nav__list a[aria-current="page"]{color:var(--cyan);border-color:var(--cyan);background:rgba(34,224,214,.09)}
.site-nav__list a[aria-current="page"]::before{width:12px;background:var(--cyan)}
.site-nav__edition{
  position:absolute;right:var(--gutter);top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--stone);
}
.header-ticks{height:8px;background-image:repeating-linear-gradient(90deg,var(--cyan-line) 0 1px,transparent 1px 8px);opacity:.5}

/* 7. 频道抽屉 ------------------------------------------------------------ */
.drawer-scrim{
  position:fixed;inset:0;z-index:70;
  background:rgba(5,10,20,.72);
  opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility 0s linear .3s;
}
.drawer-scrim[data-open="true"]{opacity:1;visibility:visible;transition:opacity .3s var(--ease)}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(420px,92vw);
  display:flex;flex-direction:column;gap:18px;
  padding:22px 20px 24px;overflow-y:auto;
  background:linear-gradient(180deg,var(--deep),var(--night));
  border-left:1px solid var(--cyan-line);
  box-shadow:-24px 0 60px rgba(5,10,20,.6);
  transform:translateX(102%);visibility:hidden;
  transition:transform .3s var(--ease),visibility 0s linear .3s;
}
.drawer[data-open="true"]{transform:none;visibility:visible;transition:transform .3s var(--ease)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line-soft);padding-bottom:12px}
.drawer__eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--cyan)}
.drawer__close{
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:6px 10px;color:var(--paper-70);cursor:pointer;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.drawer__close:hover{border-color:var(--rose);color:var(--rose)}
.drawer__lead{font-size:14px;color:var(--paper-52)}
.drawer__list{display:grid;gap:2px}
.drawer__item{
  display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:12px;align-items:center;
  padding:14px 4px;border-bottom:1px solid rgba(90,100,114,.3);
}
.drawer__time{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--gold)}
.drawer__body{min-width:0}
.drawer__name{font-size:15px;font-weight:700;color:var(--paper)}
.drawer__meta{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--paper-52)}
.drawer__link{
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  color:var(--cyan);text-decoration:none;border-bottom:1px solid var(--cyan-line);
}
.drawer__link:hover{border-color:var(--cyan)}
.drawer__foot{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:12px}

/* 8. 页脚印刷条 ---------------------------------------------------------- */
.site-footer{
  margin-top:64px;
  background:var(--ink);
  border-top:1px solid var(--cyan-line);
  color:var(--paper);
}
.footer-ticks{height:8px;background-image:repeating-linear-gradient(90deg,var(--cyan-line) 0 1px,transparent 1px 8px);opacity:.5}
.footer-inner{
  max-width:var(--shell);margin:0 auto;
  padding:40px var(--gutter) 26px;
  display:grid;gap:34px;
  grid-template-columns:minmax(0,1.3fr) minmax(0,1.9fr) minmax(0,1.3fr);
}
.footer-brand{display:grid;gap:8px;align-content:start}
.footer-brand__mark{font-size:26px;font-weight:900;letter-spacing:-.01em;color:var(--paper)}
.footer-brand__line{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--cyan)}
.footer-brand__sub{font-size:13px;color:var(--paper-52)}
.footer-brand__note{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--stone)}

.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.footer-cols__col{min-width:0}
.footer-cols__title{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--stone);margin-bottom:10px}
.footer-cols__col a{
  display:inline-block;padding:5px 0;font-size:14px;text-decoration:none;
  color:var(--paper-70);border-bottom:1px solid transparent;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.footer-cols__col a:hover{color:var(--cyan);border-color:var(--cyan)}

.footer-contact{display:grid;gap:10px;align-content:start}
.footer-contact__title{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--stone)}
.footer-contact__row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px}
.footer-contact__label{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--paper-52);flex:0 0 auto}
.footer-contact__value{font-size:13px;color:var(--paper-86);word-break:break-all}
.footer-contact__actions{display:inline-flex;gap:8px}
.footer-contact__note{font-size:12px;color:var(--paper-52);line-height:1.7}

.footer-legal{
  grid-column:1/-1;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;
  padding-top:20px;border-top:1px solid rgba(15,111,107,.4);
}
.footer-legal__icp{font-size:12px;letter-spacing:.08em;color:var(--paper-70)}
.footer-legal__note{font-size:12px;color:var(--paper-52)}

/* 9. 内容组件 ------------------------------------------------------------ */
.card{
  position:relative;display:grid;gap:12px;align-content:start;
  padding:20px;background:var(--deep);
  border:1px solid var(--line-soft);border-radius:var(--radius);
  transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--cyan);background:linear-gradient(180deg,rgba(34,224,214,.06),rgba(16,31,58,1))}
.card--stack{border-bottom:3px solid var(--paper)}
.card--offset{margin-left:0}
.card__title{font-size:18px;font-weight:700;letter-spacing:-.01em}
.card__meta{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--paper-52)}
.card__body{font-size:14px;color:var(--paper-70)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;
  padding:3px 8px;border:1px solid var(--cyan-line);border-radius:var(--radius);
  color:var(--paper-70);
}
.tag--live{border-color:var(--rose);color:var(--rose)}
.tag--replay{border-color:var(--cyan);color:var(--cyan)}
.tag--data{border-color:var(--gold);color:var(--gold)}
.tag--stage{border-color:var(--moss);color:var(--moss)}
.tag--cat{border-color:var(--clay);color:var(--clay)}

.acc{border-top:1px solid var(--line-soft)}
.acc__item{border-bottom:1px solid var(--line-soft)}
.acc__trigger{
  display:flex;align-items:baseline;gap:14px;width:100%;
  padding:18px 4px;text-align:left;cursor:pointer;color:var(--paper);
  transition:color .24s var(--ease);
}
.acc__trigger:hover{color:var(--cyan)}
.acc__num{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--cyan-line);flex:0 0 auto}
.acc__title{flex:1 1 auto;font-size:17px;font-weight:700;letter-spacing:-.01em}
.acc__icon{font-family:var(--mono);font-size:14px;color:var(--cyan);flex:0 0 auto}
.acc__panel{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.acc__item[data-open="true"] .acc__panel{max-height:640px}
.acc__panel-inner{padding:0 4px 20px 46px;color:var(--paper-70);font-size:15px}
.acc__panel-inner p+p{margin-top:.8em}
.acc__item[data-open="true"] .acc__num{color:var(--cyan)}

.stat-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
.stat{padding:16px;background:rgba(16,31,58,.7);border:1px solid var(--line-soft);border-left:2px solid var(--cyan)}
.stat__value{font-family:var(--mono);font-size:clamp(22px,3vw,30px);font-variant-numeric:tabular-nums;color:var(--gold);line-height:1.2}
.stat__label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--paper-52)}

.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--paper-52);
  padding:18px 0 0;
}
.breadcrumbs li{display:inline-flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:var(--stone)}
.breadcrumbs a{color:var(--paper-70);text-decoration:none;border-bottom:1px solid var(--line-soft)}
.breadcrumbs a:hover{color:var(--cyan);border-color:var(--cyan)}

.media{
  position:relative;display:block;width:100%;aspect-ratio:16/10;
  overflow:hidden;border:1px solid var(--line-soft);border-radius:var(--radius);
  background-color:var(--deep);
  background-image:
    radial-gradient(120% 90% at 18% 10%, rgba(34,224,214,.22), transparent 58%),
    radial-gradient(95% 80% at 86% 90%, rgba(255,77,126,.18), transparent 62%),
    linear-gradient(155deg,var(--deep),var(--ink));
}
.media img{width:100%;height:100%;object-fit:cover;display:block}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media--slant{clip-path:polygon(0 0,100% 0,100% 88%,0 100%)}
.media__cap{
  position:absolute;left:0;right:0;bottom:0;padding:10px 12px;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--paper);
  background:linear-gradient(180deg,transparent,rgba(5,10,20,.9));
}
.figure{display:grid;gap:10px}
.figure__cap{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--paper-52)}

.kv{display:grid;gap:8px}
.kv__row{display:flex;flex-wrap:wrap;gap:10px;align-items:baseline;padding-bottom:8px;border-bottom:1px solid var(--line-faint)}
.kv__key{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--stone);min-width:84px}
.kv__val{font-size:14px;color:var(--paper-86)}

/* 10. 动效 ---------------------------------------------------------------- */
.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.js [data-reveal].is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .header-progress__bar{transition:none}
  .js [data-reveal]{opacity:1;transform:none;transition:none}
  .card:hover,.btn:hover{transform:none}
}

/* 11. 响应式 -------------------------------------------------------------- */
@media (max-width:1024px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-inner{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}
  .footer-contact{grid-column:1/-1}
  .site-nav__edition{display:none}
}
@media (max-width:900px){
  :root{--gutter:16px}
  .nav-toggle{display:inline-flex}
  .header-inner{padding:10px var(--gutter) 8px;gap:10px}
  .masthead__eyebrow{font-size:10px}
  .masthead__brand{font-size:clamp(22px,5vw,28px)}
  .masthead__sub{font-size:10px}
  .site-nav{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);border-top-color:transparent}
  .site-header[data-open="true"] .site-nav{max-height:82vh;overflow-y:auto;border-top-color:var(--line-soft)}
  .site-nav__inner{display:block;padding:8px var(--gutter) 14px}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .site-nav__list a{padding:13px 10px;border-bottom:1px solid rgba(15,111,107,.32);border-radius:0}
  .site-nav__list a[aria-current="page"]{border-bottom-color:var(--cyan)}
  .site-nav__edition{display:block;position:static;transform:none;padding:12px 10px 0}
  .btn--ghost{display:none}
  .grid--7-5,.grid--5-7,.grid--3{grid-template-columns:minmax(0,1fr)}
  .section{padding:40px 0}
  .drawer__item{grid-template-columns:56px minmax(0,1fr) auto}
}
@media (max-width:640px){
  :root{--gutter:16px}
  .masthead__sub{display:none}
  .btn{padding:9px 12px;font-size:12px}
  .btn--drawer{display:none}
  .grid--2{grid-template-columns:minmax(0,1fr)}
  .footer-inner{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section__title{flex-basis:100%}
  .card{padding:16px}
  .acc__panel-inner{padding-left:8px}
}
@media (max-width:380px){
  .masthead__eyebrow{display:none}
  .footer-cols{grid-template-columns:minmax(0,1fr)}
}