:root{
  --cala-bg:#F4F8FC;
  --cala-surface:#FFFFFF;
  --cala-ink:#0D1B2E;
  --cala-brand:#134E8C;
  --cala-brand-2:#2E7BC4;
  --cala-accent:#E2A100;
  --cala-line:#D6DEEA;
  --cala-muted:#5B6B7E;
  --cala-h2-inset:16px;
  --cala-radius:12px;
  --cala-header-h:62px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--cala-bg);color:var(--cala-ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.75;font-size:16px;padding-top:var(--cala-header-h);
}
a{color:var(--cala-brand);text-decoration:none;}
a:hover{color:var(--cala-brand-2);}
img{max-width:100%;}
.cala-container{max-width:1180px;margin:0 auto;padding:0 var(--cala-h2-inset);}
.cala-main{min-height:60vh;}

/* ---------- 顶栏 ---------- */
.cala-header{position:fixed;top:0;left:0;right:0;height:var(--cala-header-h);background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--cala-line);z-index:50;}
.cala-header-inner{display:flex;align-items:center;height:100%;gap:18px;}
.cala-brand{font-weight:800;font-size:19px;color:var(--cala-brand);letter-spacing:.3px;white-space:nowrap;}
.cala-nav{display:flex;gap:22px;margin-left:auto;}
.cala-nav a{color:var(--cala-ink);font-weight:600;font-size:15px;}
.cala-nav a:hover{color:var(--cala-brand);}
.cala-nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--cala-line);
  border-radius:8px;font-size:20px;width:42px;height:38px;cursor:pointer;color:var(--cala-ink);}

/* ---------- 面包屑 ---------- */
.cala-breadcrumb-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  margin:18px 0 10px;padding:0;font-size:13.5px;color:var(--cala-muted);}
.cala-breadcrumb-list li{display:flex;align-items:center;}
.cala-breadcrumb-list li:not(:last-child)::after{content:"›";margin-left:8px;color:var(--cala-line);}
.cala-breadcrumb-list a{color:var(--cala-muted);}
.cala-breadcrumb-list a:hover{color:var(--cala-brand);}
.cala-breadcrumb-list [aria-current="page"]{color:var(--cala-ink);font-weight:600;}

/* ---------- 文章/产品详情 ---------- */
.cala-article-hero{margin:6px 0 22px;padding:22px 24px;background:var(--cala-surface);
  border:1px solid var(--cala-line);border-left:4px solid var(--cala-accent);border-radius:var(--cala-radius);}
.cala-meta-strip{font-size:13px;color:var(--cala-muted);margin-bottom:10px;}
.cala-h1{font-size:30px;line-height:1.3;margin:.1em 0 .35em;color:var(--cala-ink);}
.cala-summary{font-size:16px;color:var(--cala-muted);margin:0 0 12px;}
.cala-keywords{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;}
.cala-keywords li{background:#EAF2FB;color:var(--cala-brand);font-size:13px;padding:4px 12px;border-radius:20px;}

.cala-layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 248px;gap:34px;align-items:start;}
.cala-content-main{max-width:780px;}
.cala-content-main h2{font-size:23px;margin:34px 0 12px;padding-bottom:8px;border-bottom:2px solid var(--cala-line);color:var(--cala-brand);}
.cala-content-main h3{font-size:18.5px;margin:24px 0 10px;color:var(--cala-ink);}
.cala-content-main p{margin:0 0 14px;}
.cala-content-main ul,.cala-content-main ol{margin:0 0 14px;padding-left:24px;}
.cala-content-main li{margin:6px 0;}
.cala-content-main blockquote{margin:16px 0;padding:14px 18px;background:#F0F6FD;border-left:4px solid var(--cala-brand-2);
  border-radius:8px;color:var(--cala-ink);}
.cala-content-main code{background:#EEF3F9;padding:2px 6px;border-radius:5px;font-size:14px;}

/* 表格：同时覆盖 class 与 Markdown 裸 table（[M26]） */
.cala-content-main table,.cala-page-main table,table.cala-spec{
  border-collapse:collapse;width:100%;margin:16px 0;font-size:14.5px;
  border:1px solid #cbd5e1;background:var(--cala-surface);}
.cala-content-main table th,.cala-page-main table th,table.cala-spec th{
  background:var(--cala-brand);color:#fff;text-align:left;padding:9px 12px;border:1px solid #cbd5e1;}
.cala-content-main table td,.cala-page-main table td,table.cala-spec td{
  padding:9px 12px;border:1px solid #cbd5e1;}
.cala-content-main table tbody tr:nth-child(even),table.cala-spec tbody tr:nth-child(even){background:#F4F8FC;}

/* 目录悬浮（原生 details，[M25]） */
.cala-toc-aside{position:sticky;top:calc(var(--cala-header-h) + 18px);max-height:calc(100vh - 100px);overflow:auto;}
.cala-toc-panel{border:1px solid var(--cala-line);border-radius:var(--cala-radius);background:var(--cala-surface);padding:6px 4px;}
.cala-toc-panel>summary{cursor:pointer;font-weight:700;color:var(--cala-brand);padding:10px 14px;list-style:none;font-size:15px;}
.cala-toc-panel>summary::after{content:"▾";float:right;transition:transform .2s;}
.cala-toc-panel:not([open])>summary::after{transform:rotate(-90deg);}
.cala-toc-list{list-style:none;margin:6px 0 10px;padding:0 14px;}
.cala-toc-list li{margin:7px 0;font-size:14px;}
.cala-toc-list .cala-toc-h3{padding-left:16px;font-size:13px;color:var(--cala-muted);}
.cala-toc-list a{color:var(--cala-ink);}
.cala-toc-list a:hover{color:var(--cala-brand);}

/* FAQ */
.cala-faq{margin:30px 0;}
.cala-faq-title{font-size:22px;color:var(--cala-brand);border-bottom:2px solid var(--cala-line);padding-bottom:8px;}
.cala-faq details{border:1px solid var(--cala-line);border-radius:10px;background:var(--cala-surface);margin:10px 0;padding:12px 16px;}
.cala-faq details[open] summary{color:var(--cala-brand);}
.cala-faq summary{cursor:pointer;font-weight:600;list-style:none;}
.cala-faq summary::after{content:"＋";float:right;color:var(--cala-brand-2);}
.cala-faq details[open] summary::after{content:"－";}
.cala-faq details p{margin:10px 0 2px;color:var(--cala-muted);}

/* 相关 */
.cala-related{margin:26px 0;}
.cala-related-title{font-size:22px;color:var(--cala-brand);border-bottom:2px solid var(--cala-line);padding-bottom:8px;}
.cala-related-list{list-style:none;padding:0;margin:12px 0;display:grid;gap:12px;}
.cala-related-list li{padding:12px 16px;background:var(--cala-surface);border:1px solid var(--cala-line);border-radius:10px;}
.cala-related-list a{font-weight:700;}
.cala-related-note{display:block;font-size:13px;color:var(--cala-muted);margin-top:4px;}

/* ---------- 列表/分类页 ---------- */
.cala-list-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:30px;align-items:start;}
.cala-cat-side{position:sticky;top:calc(var(--cala-header-h) + 18px);}
.cala-cat-panel{border:1px solid var(--cala-line);border-radius:var(--cala-radius);background:var(--cala-surface);padding:6px 4px;margin-bottom:18px;}
.cala-cat-panel>summary{cursor:pointer;font-weight:700;color:var(--cala-brand);padding:10px 14px;list-style:none;font-size:15px;}
.cala-cat-panel>summary::after{content:"▾";float:right;transition:transform .2s;}
.cala-cat-panel:not([open])>summary::after{transform:rotate(-90deg);}
.category-list{list-style:none;margin:6px 0 10px;padding:0 14px;}
.category-list li{margin:8px 0;}
.category-list a{color:var(--cala-ink);font-weight:600;}
.category-list a:hover{color:var(--cala-brand);}
.cala-card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;}
.cala-card{background:var(--cala-surface);border:1px solid var(--cala-line);border-radius:var(--cala-radius);padding:18px 20px;transition:box-shadow .2s,transform .2s;}
.cala-card:hover{box-shadow:0 8px 24px rgba(19,78,140,.12);transform:translateY(-2px);}
.cala-card h3{margin:0 0 8px;font-size:18px;}
.cala-card h3 a{color:var(--cala-ink);}
.cala-card-cat{font-size:12px;color:var(--cala-accent);font-weight:700;margin:0 0 8px;}
.cala-card p{margin:0;font-size:14px;color:var(--cala-muted);}

/* ---------- 单页 ---------- */
.cala-page-wrap{padding-top:10px;}
.cala-page-main{max-width:860px;}
.cala-page-main h2{font-size:23px;margin:30px 0 12px;color:var(--cala-brand);border-bottom:2px solid var(--cala-line);padding-bottom:8px;}
.cala-page-main h3{font-size:18.5px;margin:22px 0 10px;}
.cala-page-main p{margin:0 0 14px;}
.cala-page-main ul,.cala-page-main ol{margin:0 0 14px;padding-left:24px;}
.cala-arch-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:10px;}
.cala-arch-list li{padding:10px 14px;background:var(--cala-surface);border:1px solid var(--cala-line);border-radius:8px;}
.cala-arch-cat{font-size:12px;color:var(--cala-accent);margin-left:8px;}

/* ---------- 首页 ---------- */
.cala-hero{margin:14px 0 30px;padding:34px 30px;background:linear-gradient(135deg,var(--cala-brand),var(--cala-brand-2));
  border-radius:18px;color:#fff;}
.cala-hero .cala-h1{color:#fff;font-size:34px;}
.cala-hero-desc{font-size:16px;max-width:760px;color:#EAF2FB;margin:10px 0 22px;}
.cala-hero-cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;}
.cala-hero-cat{display:flex;flex-direction:column;gap:4px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  border-radius:12px;padding:14px 16px;color:#fff;}
.cala-hero-cat:hover{background:rgba(255,255,255,.2);color:#fff;}
.cala-hero-cat-name{font-weight:700;font-size:16px;}
.cala-hero-cat-sub{font-size:12.5px;color:#DCE9F7;}
.cala-sec-title{font-size:24px;color:var(--cala-brand);margin:34px 0 14px;border-left:4px solid var(--cala-accent);padding-left:12px;}
.cala-chips{display:flex;flex-wrap:wrap;gap:10px;}
.cala-chip{background:#EAF2FB;color:var(--cala-brand);padding:6px 16px;border-radius:20px;font-weight:600;font-size:14px;}
.cala-scene-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;}
.cala-scene{background:var(--cala-surface);border:1px solid var(--cala-line);border-radius:12px;padding:16px 18px;}
.cala-scene h3{margin:0 0 8px;font-size:17px;color:var(--cala-ink);}
.cala-scene p{margin:0;font-size:14px;color:var(--cala-muted);}

/* ---------- 页脚 ---------- */
.cala-footer{margin-top:50px;background:var(--cala-ink);color:#C7D3E2;}
.cala-footer-inner{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;padding:22px var(--cala-h2-inset);}
.cala-footer p{margin:0;font-size:13.5px;}
.cala-footer-nav{display:flex;gap:18px;}
.cala-footer-nav a{color:#C7D3E2;font-size:13.5px;}
.cala-footer-nav a:hover{color:#fff;}

/* ---------- 悬浮胶囊 ---------- */
.cala-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:60;}
.cala-float-btn{width:54px;height:54px;border:none;border-radius:28px;background:linear-gradient(135deg,var(--cala-brand),var(--cala-brand-2));
  color:#fff;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  box-shadow:0 6px 18px rgba(19,78,140,.35);font-size:12px;}
.cala-float-btn:hover{background:linear-gradient(135deg,var(--cala-brand-2),var(--cala-accent));}
.cala-float-ico{font-size:18px;line-height:1;}
.cala-capsule-email{text-decoration:none;}

/* 名片弹层 */
.cala-card-modal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;}
.cala-card-modal[hidden]{display:none;}
.cala-card-mask{position:absolute;inset:0;background:rgba(13,27,46,.55);}
.cala-card-box{position:relative;background:#fff;border-radius:10px;padding:10px;box-shadow:0 12px 40px rgba(0,0,0,.3);}
.cala-card-box img{display:block;width:300px;height:500px;border-radius:6px;}
.cala-card-close{position:absolute;top:-14px;right:-14px;width:34px;height:34px;border-radius:50%;border:none;
  background:var(--cala-brand);color:#fff;font-size:20px;cursor:pointer;}

/* ---------- 响应式（[M25] 折叠断点 1024） ---------- */
@media (max-width:1024px){
  .cala-nav{display:none;position:absolute;top:var(--cala-header-h);left:0;right:0;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--cala-line);padding:12px 16px;gap:6px;}
  .cala-nav.open{display:flex;}
  .cala-nav-toggle{display:block;}
  .cala-layout-grid,.cala-list-grid{grid-template-columns:1fr;}
  .cala-toc-aside,.cala-cat-side{position:static;max-height:none;top:auto;}
  .cala-content-main{max-width:100%;}
  .cala-card-box img{width:240px;height:400px;}
}
@media (max-width:560px){
  .cala-h1{font-size:24px;}
  .cala-hero{padding:24px 18px;}
  .cala-hero .cala-h1{font-size:26px;}
}