/* =========================================================
   博乐品牌档案站 · 共享样式 /assets/site.css
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink:#0E1B26;
  --steel:#16303F;
  --blue:#2C5C7A;
  --mist:#7FA8BF;
  --grey:#E8EEF2;
  --paper:#F5F7F8;
  --amber:#FF8A1E;
  --amber-soft:#FFB55C;
  --teal:#12A08A;
  --teal-deep:#0B6B5C;
  --note:#C2410C;

  --text:#1C2C36;
  --muted:#5B7285;
  --line:rgba(127,168,191,.50);
  --line-soft:rgba(127,168,191,.28);

  --wrap:1280px;
  --gutter:clamp(18px,4vw,44px);
  --header-h:78px;
  --measure:52em;
  --radius:2px;
  --shadow-card:0 20px 42px -34px rgba(14,27,38,.85);

  --font-head:"Barlow Semi Condensed","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16.5px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
#main-content{display:block;scroll-margin-top:calc(var(--header-h) + 20px)}

/* ---------- 3. 中文排版 ---------- */
h1,h2,h3,h4,h5{
  margin:0 0 .55em;
  font-family:var(--font-head);
  font-stretch:87.5%;
  font-weight:700;
  color:var(--ink);
  line-height:1.14;
  letter-spacing:.01em;
  text-align:left;
}
h1{font-size:clamp(2.3rem,5vw,4rem)}
h2{font-size:clamp(1.75rem,3.2vw,2.5rem)}
h3{font-size:clamp(1.2rem,1.9vw,1.5rem)}
h4{font-size:1.06rem}
p{margin:0 0 1.1em}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:.22em}
a:hover{color:var(--teal-deep)}
strong{font-weight:700;color:var(--ink)}
.mono{font-family:var(--font-mono);letter-spacing:.02em}
.prose{max-width:var(--measure)}
.prose p{margin:0 0 1.15em}
.prose ul{list-style:none;padding-left:0;margin:0 0 1.2em}
.prose ul > li{position:relative;padding-left:1.35em;margin:0 0 .55em}
.prose ul > li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:2px;background:var(--amber)}
.prose ol{padding-left:1.5em;margin:0 0 1.2em;list-style:decimal}
.prose ol > li{margin:0 0 .55em;padding-left:.2em}
.lede{font-size:clamp(1.05rem,1.5vw,1.2rem);color:var(--steel);max-width:var(--measure);margin:0 0 1.4em}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  margin:0 0 14px;
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.16em;color:var(--blue);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--amber)}

/* ---------- 4. 布局容器 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.page-top{padding-top:calc(var(--header-h) + 34px)}
.grid{display:grid;gap:clamp(18px,2.4vw,32px)}
.grid-12{grid-template-columns:repeat(12,minmax(0,1fr))}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-10{grid-column:span 10}
.col-12{grid-column:span 12}
.section{padding:clamp(46px,6.4vw,88px) 0;border-top:1px solid var(--line-soft)}
.section-bare{border-top:0}
.section-head{max-width:var(--measure);margin-bottom:clamp(22px,3vw,38px)}
.divider{height:1px;border:0;background:var(--line-soft);margin:clamp(26px,4vw,46px) 0}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;
  border:1px solid transparent;border-radius:var(--radius);
  font-family:var(--font-body);font-size:14px;font-weight:600;letter-spacing:.02em;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--amber);color:var(--ink)}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--amber-soft);color:var(--ink)}
.btn-ghost{background:transparent;border-color:rgba(245,247,248,.52);color:inherit}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:var(--amber);color:var(--amber-soft)}
.btn-outline{background:transparent;border-color:rgba(44,92,122,.45);color:var(--blue)}
.btn-outline:hover,.btn-outline:focus-visible{border-color:var(--blue);background:rgba(44,92,122,.08);color:var(--ink)}

/* ---------- 6. 跳转链接 ---------- */
.skip-link{
  position:absolute;left:16px;top:-70px;z-index:200;
  padding:10px 16px;
  background:var(--ink);color:var(--paper);
  font-size:14px;text-decoration:none;border-radius:var(--radius);
  transition:top .18s ease-out;
}
.skip-link:focus{top:12px;color:var(--amber-soft)}

/* ---------- 7. 页头 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  color:#F2F6F8;
  transition:background-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out;
}
.header-scrim{
  position:absolute;left:0;right:0;top:0;bottom:-34px;
  pointer-events:none;
  background:linear-gradient(180deg,
    rgba(14,27,38,.88) 0%,
    rgba(14,27,38,.74) 62%,
    rgba(14,27,38,.34) 86%,
    rgba(14,27,38,0) 100%);
  transition:opacity .2s ease-out;
}
.site-header[data-state="solid"]{
  background:rgba(245,247,248,.97);
  color:var(--ink);
  box-shadow:0 1px 0 rgba(127,168,191,.55),0 14px 30px -26px rgba(14,27,38,.85);
  backdrop-filter:blur(8px);
}
.site-header[data-state="solid"] .header-scrim{opacity:0}

.header-status{
  position:relative;
  max-height:40px;overflow:hidden;
  border-bottom:1px solid rgba(127,168,191,.28);
  transition:max-height .22s ease-out,opacity .2s ease-out,border-color .2s ease-out;
}
.site-header[data-state="solid"] .header-status{max-height:0;opacity:0;border-color:transparent}
.header-status-inner{
  display:flex;align-items:center;gap:12px;
  min-height:38px;
  font-size:12px;letter-spacing:.06em;
  color:rgba(233,241,245,.84);
}
.header-status-item{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-status-sep{flex:0 0 auto;width:22px;height:1px;background:var(--amber)}
.site-header[data-state="solid"] .header-status-inner{color:var(--muted)}

.header-inner{
  position:relative;
  display:flex;align-items:center;
  gap:clamp(12px,2vw,30px);
  min-height:var(--header-h);
}

/* 品牌 */
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:inherit;text-decoration:none}
.brand-mark{
  display:grid;place-items:center;
  width:38px;height:38px;flex:0 0 auto;
  background:var(--amber);color:var(--ink);
  font-family:var(--font-mono);font-size:17px;font-weight:700;line-height:1;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand-text{display:block;min-width:0}
.brand-name{
  display:block;
  font-family:var(--font-head);font-stretch:87.5%;font-weight:700;
  font-size:16px;line-height:1.25;letter-spacing:.02em;
}
.brand-line{
  display:block;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;
  line-height:1.5;opacity:.74;white-space:nowrap;
}

/* 导航 */
.site-nav{display:flex;align-items:center;gap:clamp(10px,1.6vw,26px);margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(4px,1.1vw,18px);list-style:none;margin:0;padding:0;counter-reset:nav}
.nav-item{counter-increment:nav}
.nav-link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:7px;
  padding:8px 2px;
  color:inherit;text-decoration:none;
  font-size:14.5px;font-weight:500;letter-spacing:.02em;
  opacity:.88;
  transition:opacity .18s ease-out,color .18s ease-out;
}
.nav-link::before{
  content:counter(nav,decimal-leading-zero);
  font-family:var(--font-mono);font-size:9.5px;letter-spacing:.06em;
  opacity:.55;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--amber);
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-link:hover,.nav-link:focus-visible{opacity:1}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{opacity:1;color:var(--amber-soft)}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--amber)}
.site-header[data-state="solid"] .nav-link[aria-current="page"]{color:var(--blue)}

.nav-actions{display:flex;align-items:center;gap:10px}
.site-header[data-state="solid"] .btn-ghost{border-color:rgba(44,92,122,.42);color:var(--blue)}
.site-header[data-state="solid"] .btn-ghost:hover{border-color:var(--blue);color:var(--ink)}

/* 移动导航按钮 */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  margin-left:auto;
  padding:9px 12px;
  background:transparent;border:1px solid currentColor;border-radius:var(--radius);
  color:inherit;font-size:13px;font-weight:600;letter-spacing:.04em;
  cursor:pointer;
}
.nav-toggle-bars{display:grid;gap:4px;width:16px}
.nav-toggle-bars i{display:block;height:2px;background:currentColor;transition:transform .2s ease-out,opacity .16s ease-out}
.site-header[data-nav-open="true"] .nav-toggle-bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-nav-open="true"] .nav-toggle-bars i:nth-child(2){opacity:0}
.site-header[data-nav-open="true"] .nav-toggle-bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 阅读进度 */
.scroll-progress{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(127,168,191,.16)}
.scroll-progress > span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--amber))}
.site-header[data-state="overlay"] .scroll-progress{opacity:0}

/* ---------- 8. 页脚 ---------- */
.site-footer{background:var(--ink);color:#CFDCE4;font-size:14.5px;line-height:1.7;margin-top:auto}
.site-footer a{
  color:#DDE8EE;text-decoration:none;
  border-bottom:1px solid rgba(127,168,191,.35);
  transition:color .18s ease-out,border-color .18s ease-out;
}
.site-footer a:hover,.site-footer a:focus-visible{color:var(--amber-soft);border-color:var(--amber-soft)}

.status-band{
  background:linear-gradient(90deg,rgba(18,160,138,.26),rgba(255,138,30,.18) 62%,rgba(18,160,138,.12));
  border-bottom:1px solid rgba(127,168,191,.28);
}
.status-band-inner{display:flex;align-items:center;gap:14px;flex-wrap:wrap;min-height:48px;font-size:12px;letter-spacing:.06em;color:#D8E6EE}
.status-band-tag{color:var(--amber-soft);font-weight:700}
.status-band-sep{flex:0 0 auto;width:26px;height:1px;background:rgba(232,238,242,.42)}
.status-band-text{color:rgba(216,230,238,.86)}

.footer-main{
  display:grid;
  grid-template-columns:minmax(230px,3fr) 9fr;
  gap:clamp(24px,4vw,64px);
  padding:clamp(38px,6vw,74px) 0 clamp(26px,4vw,46px);
}
.footer-brand .brand-mark{margin-bottom:16px}
.footer-brand-name{
  font-family:var(--font-head);font-stretch:87.5%;font-weight:700;
  font-size:19px;color:#F2F6F8;margin:0 0 8px;letter-spacing:.02em;
}
.footer-brand-note{max-width:24em;margin:0 0 8px;font-size:13.5px;color:#9FB6C4}

.footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.footer-col-title{
  margin:0 0 14px;
  font-family:var(--font-head);font-stretch:87.5%;font-weight:600;
  font-size:13px;letter-spacing:.18em;color:var(--amber-soft);
}
.footer-list{list-style:none;margin:0;padding:0;display:grid;gap:9px;font-size:14px}
.footer-lines{display:grid;gap:9px;font-size:13.5px;color:#B9CBD6}
.footer-lines p{margin:0;display:grid;grid-template-columns:66px 1fr;gap:10px;overflow-wrap:anywhere}
.footer-label{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;
  color:#8FA6B4;padding-top:3px;
}
.footer-legal{
  display:flex;flex-wrap:wrap;gap:8px 26px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(127,168,191,.28);
  padding-top:20px;padding-bottom:28px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.02em;color:#8FA6B4;
}
.footer-legal-line{margin:0}

/* ---------- 9. 基础组件 ---------- */
/* 面包屑 */
.breadcrumb{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--muted);margin:0 0 22px}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:0 8px;list-style:none;margin:0;padding:0}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--mist)}
.breadcrumb a{color:var(--blue);text-decoration:none;border-bottom:1px solid rgba(44,92,122,.32)}
.breadcrumb a:hover{color:var(--teal-deep);border-color:var(--teal-deep)}
.breadcrumb [aria-current="page"]{color:var(--ink)}

/* 横向主题带 */
.band{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1px;
  background:var(--line-soft);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.band-item{position:relative;background:var(--grey);padding:clamp(20px,3vw,32px) clamp(18px,2.4vw,28px)}
.band-item::before{content:"";position:absolute;left:0;top:0;width:2px;height:100%;background:var(--blue)}
.band-item-amber::before{background:var(--amber)}
.band-item-teal::before{background:var(--teal)}
.band-item h3{margin-bottom:.35em}

/* 资料卡 */
.doc-card{
  position:relative;
  background:var(--paper);
  border:1px solid var(--line);
  padding:28px 24px 24px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.doc-card::before{content:"";position:absolute;left:-1px;top:-1px;width:38px;height:3px;background:var(--amber)}
.doc-card:hover{border-color:var(--blue);box-shadow:var(--shadow-card)}
.doc-card-tag{
  position:absolute;left:18px;top:-11px;
  padding:3px 9px;
  background:var(--ink);color:var(--paper);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
}
.doc-card h3{margin:6px 0 .4em}
.doc-meta{
  margin:0 0 14px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--muted);
}

/* 标签 / 戳记 / 数据块 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;border-radius:var(--radius);
  font-size:12px;line-height:1.6;letter-spacing:.03em;
  background:rgba(18,160,138,.13);color:var(--teal-deep);border:1px solid rgba(18,160,138,.3);
}
.tag-amber{background:rgba(255,138,30,.16);color:#7A3B00;border-color:rgba(255,138,30,.45)}
.tag-blue{background:rgba(44,92,122,.12);color:var(--blue);border-color:rgba(44,92,122,.32)}
.stamp{
  display:inline-flex;align-items:center;gap:8px;
  padding:4px 10px;border-radius:var(--radius);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--teal-deep);border:1px dashed rgba(18,160,138,.6);background:rgba(18,160,138,.06);
}
.stat{display:grid;gap:6px}
.stat-value{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(2rem,4.4vw,3.6rem);line-height:1;letter-spacing:.02em;color:var(--ink);
}
.stat-label{font-size:13px;color:var(--muted);letter-spacing:.04em}

/* 提示块 */
.callout{
  margin:0 0 1.4em;padding:16px 22px;
  background:var(--grey);border:1px solid var(--line);border-left:3px solid var(--blue);
}
.callout > :last-child{margin-bottom:0}
.callout-warn{border-left-color:var(--note);background:rgba(194,65,12,.06)}

/* 图片容器（页面阶段放置图片） */
.figure{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16 / 9;
  background:linear-gradient(155deg,#16303F 0%,#0E1B26 58%,#2C5C7A 100%);
  border:1px solid var(--line);
}
.figure-wide{aspect-ratio:21 / 9}
.figure-square{aspect-ratio:1 / 1}
.figure > img{width:100%;height:100%;object-fit:cover}
.figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(245,247,248,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(245,247,248,.10) 1px,transparent 1px);
  background-size:28px 28px;
}
.figure-scan::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(245,247,248,.07) 0 1px,transparent 1px 4px);
}
.figure-caption{margin:10px 0 0;font-size:13px;color:var(--muted);letter-spacing:.02em}

/* 表格 */
.table-wrap{overflow-x:auto;border:1px solid var(--line-soft);background:#fff}
.data-table{width:100%;min-width:540px;font-size:14.5px}
.data-table caption{
  caption-side:top;text-align:left;
  padding:14px 16px;border-bottom:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--muted);
}
.data-table th,.data-table td{padding:12px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line-soft)}
.data-table thead th{
  background:var(--steel);color:#EAF1F5;
  font-size:13px;font-weight:600;letter-spacing:.06em;border-bottom-color:var(--steel);
}
.data-table tbody tr:nth-child(even){background:rgba(22,48,63,.07)}
.data-table tbody tr:hover{background:rgba(255,138,30,.10)}
.data-table .mono{color:var(--ink)}

/* 折叠面板 */
.accordion{border-bottom:1px solid var(--line-soft)}
.acc-item{border-top:1px solid var(--line-soft)}
.acc-head{
  display:flex;align-items:center;gap:14px;width:100%;
  padding:18px 4px;
  background:none;border:0;text-align:left;cursor:pointer;color:var(--ink);
  transition:color .18s ease-out;
}
.acc-head:hover{color:var(--blue)}
.acc-head[aria-expanded="true"]{color:var(--ink)}
.acc-index{flex:0 0 auto;font-family:var(--font-mono);font-size:12px;color:var(--mist)}
.acc-title{flex:1 1 auto;font-family:var(--font-head);font-stretch:87.5%;font-weight:600;font-size:clamp(1rem,1.5vw,1.18rem);line-height:1.4}
.acc-icon{position:relative;flex:0 0 auto;width:14px;height:14px;color:var(--blue)}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;left:0;top:6px;width:14px;height:2px;background:currentColor;
  transition:transform .22s ease-out;
}
.acc-icon::after{transform:rotate(90deg)}
.acc-head[aria-expanded="true"] .acc-icon::after{transform:rotate(0)}
.acc-panel{overflow:hidden;height:0;transition:height .24s ease-out}
.acc-body{padding:2px 4px 24px 34px;max-width:var(--measure)}

/* 主题筛选 */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;margin-bottom:clamp(20px,3vw,32px);
  border-bottom:1px solid var(--line-soft);
}
.filter-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius);
  border:1px solid var(--line);background:transparent;color:var(--steel);
  font-size:13.5px;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.filter-btn:hover{border-color:var(--blue);color:var(--blue)}
.filter-btn[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.filter-count{font-family:var(--font-mono);font-size:11px;opacity:.75}
.filter-live{margin-left:auto;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;color:var(--muted)}
[data-filter-hidden="true"]{display:none !important}

/* 年份轴 */
.axis-layout{display:grid;grid-template-columns:120px minmax(0,1fr);gap:clamp(20px,3vw,48px)}
.year-axis{
  position:sticky;top:calc(var(--header-h) + 26px);
  align-self:start;
  display:flex;flex-direction:column;
  border-left:2px solid rgba(44,92,122,.25);
}
.axis-item{
  position:relative;
  display:block;width:100%;
  padding:12px 6px 12px 18px;
  margin:0;
  background:none;border:0;border-left:2px solid transparent;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.02em;
  color:var(--muted);text-align:left;text-decoration:none;cursor:pointer;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.axis-item::before{
  content:"";position:absolute;left:-5px;top:50%;width:8px;height:8px;margin-top:-4px;
  border-radius:50%;background:var(--grey);border:2px solid var(--mist);
}
.axis-item:hover{color:var(--ink)}
.axis-item.is-active{color:var(--ink);border-left-color:var(--amber)}
.axis-item.is-active::before{background:var(--amber);border-color:var(--amber)}

/* 脉冲点 / 滚动显现 */
.pulse-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--amber);
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,138,30,.5)}
  70%{box-shadow:0 0 0 12px rgba(255,138,30,0)}
  100%{box-shadow:0 0 0 0 rgba(255,138,30,0)}
}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 10. 响应式 ---------- */
@media (max-width:1100px){
  .footer-main{grid-template-columns:1fr;gap:34px}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 30px}
}
@media (max-width:980px){
  :root{--header-h:66px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:block;
    margin-left:0;
    padding:10px var(--gutter) 24px;
    background:var(--paper);color:var(--ink);
    border-top:1px solid rgba(127,168,191,.45);
    box-shadow:0 30px 46px -34px rgba(14,27,38,.95);
    max-height:0;opacity:0;visibility:hidden;overflow:hidden;
    transition:max-height .26s ease-out,opacity .2s ease-out,visibility .2s;
  }
  .site-nav[data-open="true"]{max-height:80vh;opacity:1;visibility:visible;overflow:auto}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px solid rgba(127,168,191,.32)}
  .nav-link{display:flex;padding:14px 2px;font-size:16px;opacity:1}
  .nav-link::after{display:none}
  .nav-actions{margin-top:18px;flex-direction:column;align-items:stretch;gap:10px}
  .nav-actions .btn{width:100%;padding:12px 18px}
  .site-header[data-state="overlay"] .site-nav .btn-ghost{border-color:rgba(44,92,122,.42);color:var(--blue)}
  .header-status-inner{font-size:11px}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-3,.col-4,.col-5,.col-6{grid-column:span 3}
  .col-7,.col-8,.col-9,.col-10,.col-12{grid-column:span 6}
  .axis-layout{grid-template-columns:1fr;gap:22px}
  .year-axis{
    position:static;flex-direction:row;overflow-x:auto;
    border-left:0;border-bottom:2px solid rgba(44,92,122,.25);
    padding-bottom:0;
  }
  .axis-item{width:auto;white-space:nowrap;padding:10px 16px;border-left:0;border-bottom:2px solid transparent}
  .axis-item::before{left:50%;top:auto;bottom:-5px;margin:0 0 0 -5px}
  .axis-item.is-active{border-bottom-color:var(--amber)}
  .filter-live{margin-left:0;width:100%}
}
@media (max-width:620px){
  :root{--gutter:18px}
  body{font-size:16px}
  .brand-line{display:none}
  .footer-cols{grid-template-columns:1fr;gap:24px}
  .footer-lines p{grid-template-columns:1fr;gap:2px}
  .footer-label{padding-top:0}
  .grid-12{grid-template-columns:1fr}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-10,.col-12{grid-column:span 1}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .filter-live{margin-left:0}
}

/* ---------- 11. 无障碍动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none}
  .pulse-dot{animation:none}
  .scroll-progress > span{transition:none}
}