/* sealed.微波连接器.公司 —— 原创骨架样式（sld- 前缀，零复用） */
:root{
  --sld-bg:#0A1622;
  --sld-bg2:#0C1A28;
  --sld-panel:#13263A;
  --sld-panel2:#0B1826;
  --sld-cyan:#20C4C9;
  --sld-violet:#8A7BFF;
  --sld-amber:#E8A24A;
  --sld-text:#E6EDF3;
  --sld-muted:#9FB2C0;
  --sld-line:#244458;
  --sld-line2:#2E5570;
  --sld-h2-inset:16px;
  --sld-maxw:1180px;
  --sld-nav-h:64px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--sld-bg);color:var(--sld-text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:var(--sld-cyan);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;}
h1,h2,h3,h4{color:var(--sld-text);line-height:1.35;font-weight:700;}
code{background:var(--sld-panel);padding:2px 6px;border-radius:4px;font-size:13px;color:var(--sld-amber);}

/* ===== 导航 ===== */
.sld-nav{position:fixed;top:0;left:0;right:0;height:var(--sld-nav-h);z-index:70;
  background:rgba(10,22,34,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--sld-line);}
.sld-nav-inner{max-width:var(--sld-maxw);margin:0 auto;height:100%;padding:0 24px;display:flex;align-items:center;gap:18px;}
.sld-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--sld-text);font-size:17px;}
.sld-brand:hover{text-decoration:none;}
.sld-brand-mark{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--sld-cyan),var(--sld-violet));color:#06222A;font-weight:800;}
.sld-brand-dot{color:var(--sld-cyan);}
.sld-brand-cn{color:var(--sld-muted);font-size:14px;}
.sld-nav-menu{margin-left:auto;display:flex;align-items:center;gap:4px;}
.sld-nav-menu>a,.sld-nav-item>a{display:inline-flex;align-items:center;gap:4px;padding:10px 14px;color:var(--sld-muted);border-radius:8px;font-size:15px;}
.sld-nav-menu>a:hover,.sld-nav-item>a:hover{color:var(--sld-text);background:var(--sld-panel);text-decoration:none;}
.sld-caret{font-size:10px;opacity:.7;}
.sld-nav-item{position:relative;}
.sld-nav-sub{position:absolute;top:100%;left:0;min-width:172px;background:var(--sld-panel);
  border:1px solid var(--sld-line);border-radius:10px;padding:6px;display:none;flex-direction:column;gap:2px;box-shadow:0 16px 40px rgba(0,0,0,.4);}
.sld-nav-item:hover .sld-nav-sub,.sld-nav-item:focus-within .sld-nav-sub{display:flex;}
.sld-nav-sub a{padding:8px 12px;border-radius:7px;color:var(--sld-muted);font-size:14px;}
.sld-nav-sub a:hover{background:var(--sld-panel2);color:var(--sld-text);}
.sld-nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--sld-line);color:var(--sld-text);
  font-size:22px;width:42px;height:38px;border-radius:8px;cursor:pointer;}

/* ===== 主区 ===== */
.sld-main{padding-top:var(--sld-nav-h);min-height:70vh;}
.sld-breadcrumb{font-size:13px;color:var(--sld-muted);max-width:var(--sld-maxw);margin:0 auto;
  padding:18px 24px 14px;padding-left:calc(24px + var(--sld-h2-inset));}
.sld-breadcrumb:has(+ .sld-list-layout){padding-left:calc(24px + 240px + 42px);}
.sld-breadcrumb:has(+ .sld-page-wrap){max-width:880px;}
.sld-breadcrumb a{color:var(--sld-muted);}
.sld-breadcrumb a:hover{color:var(--sld-cyan);}
.sld-breadcrumb .sld-sep{margin:0 8px;opacity:.55;}
.sld-breadcrumb .sld-cur{color:var(--sld-text);}

/* ===== 详情页布局 ===== */
.sld-article-layout,.sld-product-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:42px;
  max-width:var(--sld-maxw);margin:0 auto;padding:0 24px 64px;}
.sld-content-main{padding-left:var(--sld-h2-inset);min-width:0;}
.sld-content-main h1{font-size:30px;margin:6px 0 6px;}
.sld-content-main h2{font-size:22px;margin:34px 0 12px;padding-top:6px;border-top:1px solid var(--sld-line);scroll-margin-top:84px;}
.sld-content-main h3{font-size:18px;margin:24px 0 10px;scroll-margin-top:84px;}
.sld-content-main p{margin:12px 0;color:var(--sld-text);}
.sld-content-main ul,.sld-content-main ol{margin:12px 0;padding-left:22px;color:var(--sld-text);}
.sld-content-main li{margin:6px 0;}

/* ===== 目录 ===== */
.sld-toc-aside{min-width:0;}
.sld-toc-panel{position:sticky;top:calc(var(--sld-nav-h) + 16px);border:1px solid var(--sld-line);
  border-radius:10px;background:var(--sld-panel);overflow:hidden;}
.sld-toc-panel>summary{padding:12px 16px;font-weight:700;cursor:pointer;color:var(--sld-text);list-style:none;}
.sld-toc-panel>summary::-webkit-details-marker{display:none;}
.sld-toc-panel>summary::after{content:"▾";float:right;color:var(--sld-cyan);transition:transform .2s;}
.sld-toc-panel:not([open])>summary::after{transform:rotate(-90deg);}
.sld-toc-panel ol{margin:0;padding:6px 16px 14px 30px;counter-reset:toc;}
.sld-toc-panel li{margin:7px 0;font-size:13px;line-height:1.45;}
.sld-toc-panel a{color:var(--sld-muted);}
.sld-toc-panel a:hover{color:var(--sld-cyan);}

/* ===== 列表/分类页布局 ===== */
.sld-list-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:42px;
  max-width:var(--sld-maxw);margin:0 auto;padding:0 24px 64px;}
.sld-cat-side{min-width:0;}
.sld-cat-panel{position:sticky;top:calc(var(--sld-nav-h) + 16px);border:1px solid var(--sld-line);
  border-radius:10px;background:var(--sld-panel);overflow:hidden;margin-bottom:18px;}
.sld-cat-panel>summary{padding:12px 16px;font-weight:700;cursor:pointer;color:var(--sld-text);list-style:none;}
.sld-cat-panel>summary::-webkit-details-marker{display:none;}
.sld-cat-panel>summary::after{content:"▾";float:right;color:var(--sld-cyan);transition:transform .2s;}
.sld-cat-panel:not([open])>summary::after{transform:rotate(-90deg);}
.sld-category-list{list-style:none;margin:0;padding:6px 12px 14px;}
.sld-category-list li{margin:2px 0;}
.sld-category-list a{display:block;padding:8px 12px;border-radius:7px;color:var(--sld-muted);font-size:14px;}
.sld-category-list a:hover,.sld-category-list a.sld-active{background:var(--sld-panel2);color:var(--sld-cyan);}
.sld-cat-content{padding-left:var(--sld-h2-inset);min-width:0;}
.sld-cat-content h1{font-size:28px;margin:4px 0 8px;}
.sld-cat-content h2{font-size:20px;margin:26px 0 10px;color:var(--sld-text);}

/* ===== 卡片网格 ===== */
.sld-card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin:18px 0;}
.sld-card{background:var(--sld-panel);border:1px solid var(--sld-line);border-radius:12px;padding:18px 18px 16px;transition:transform .15s,border-color .15s;}
.sld-card:hover{transform:translateY(-3px);border-color:var(--sld-cyan);text-decoration:none;}
.sld-card h3{margin:0 0 8px;font-size:17px;color:var(--sld-text);}
.sld-card p{margin:0;color:var(--sld-muted);font-size:13px;line-height:1.55;}
.sld-card .sld-card-cat{display:inline-block;font-size:12px;color:var(--sld-cyan);margin-bottom:8px;}

/* ===== 表格（覆盖全部正文 table，含 Markdown 裸 table）===== */
.sld-content-main table,.sld-page-main table,table.sld-spec{
  width:100%;border-collapse:collapse;margin:18px 0;font-size:14px;background:var(--sld-panel2);}
.sld-content-main table th,.sld-page-main table th,table.sld-spec th{
  background:var(--sld-cyan);color:#06222A;text-align:left;padding:10px 12px;font-weight:700;border:1px solid var(--sld-line2);}
.sld-content-main table td,.sld-page-main table td,table.sld-spec td{
  border:1px solid var(--sld-line2);padding:9px 12px;color:var(--sld-text);vertical-align:top;}
.sld-content-main table tr:nth-child(even) td,.sld-page-main table tr:nth-child(even) td,table.sld-spec tr:nth-child(even) td{background:rgba(255,255,255,.03);}

/* ===== 引用 / 结论块 ===== */
.sld-content-main blockquote,.sld-page-main blockquote{
  border-left:3px solid var(--sld-amber);background:var(--sld-panel2);margin:16px 0;padding:12px 18px;border-radius:0 8px 8px 0;color:var(--sld-text);}
.sld-content-main blockquote strong{color:var(--sld-amber);}

/* ===== FAQ（裸 details）===== */
.sld-content-main details{border:1px solid var(--sld-line);border-radius:8px;margin:10px 0;background:var(--sld-panel2);overflow:hidden;}
.sld-content-main details summary{padding:12px 16px;font-weight:600;color:var(--sld-text);cursor:pointer;list-style:none;}
.sld-content-main details summary::-webkit-details-marker{display:none;}
.sld-content-main details summary::before{content:"＋";color:var(--sld-cyan);margin-right:8px;font-weight:700;}
.sld-content-main details[open] summary::before{content:"－";}
.sld-content-main details .sld-faq-a{padding:2px 16px 14px;color:var(--sld-muted);}
.sld-content-main details .sld-faq-a p{margin:6px 0;}

/* ===== 标签 / 摘要 / 经验块 ===== */
.sld-tag-row{margin:14px 0 4px;}
.sld-tag{display:inline-block;background:var(--sld-panel);border:1px solid var(--sld-line);border-radius:999px;
  padding:3px 12px;font-size:12px;color:var(--sld-muted);margin:0 6px 6px 0;}
.sld-summary-block{background:linear-gradient(135deg,rgba(32,196,201,.08),rgba(138,123,255,.08));
  border:1px solid var(--sld-line);border-radius:12px;padding:16px 20px;margin:14px 0 8px;color:var(--sld-text);}
.sld-callout{border-left:3px solid var(--sld-violet);background:var(--sld-panel2);border-radius:0 8px 8px 0;
  padding:12px 18px;margin:16px 0;color:var(--sld-text);}
.sld-callout strong{color:var(--sld-violet);}
.sld-update{font-size:13px;color:var(--sld-muted);margin:6px 0 10px;}

/* ===== 相关阅读/产品 ===== */
.sld-related{margin-top:26px;border-top:1px solid var(--sld-line);padding-top:16px;}
.sld-related h2{font-size:19px;border:none;padding:0;margin:0 0 12px;}
.sld-related ul{list-style:none;padding:0;margin:0;}
.sld-related li{margin:8px 0;color:var(--sld-muted);}
.sld-related a{color:var(--sld-cyan);}

/* ===== 页面（about/privacy/contact/...）===== */
.sld-page-wrap{max-width:880px;margin:0 auto;padding:0 24px 64px;}
.sld-page-main{padding-left:var(--sld-h2-inset);min-width:0;}
.sld-page-main h1{font-size:30px;margin:6px 0 10px;}
.sld-page-main h2{font-size:22px;margin:30px 0 10px;color:var(--sld-text);}
.sld-page-main p{margin:12px 0;color:var(--sld-text);}

/* ===== 首页 ===== */
.sld-hero{max-width:var(--sld-maxw);margin:0 auto;padding:54px 24px 30px;}
.sld-hero h1{font-size:40px;margin:0 0 14px;line-height:1.2;}
.sld-hero .sld-hero-sub{font-size:18px;color:var(--sld-muted);max-width:760px;}
.sld-hero .sld-hero-tags{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px;}
.sld-hero .sld-hero-tag{background:var(--sld-panel);border:1px solid var(--sld-line);border-radius:999px;padding:6px 14px;color:var(--sld-cyan);font-size:14px;}
.sld-section{max-width:var(--sld-maxw);margin:0 auto;padding:34px 24px;}
.sld-section h2{font-size:26px;margin:0 0 6px;}
.sld-section .sld-section-sub{color:var(--sld-muted);margin:0 0 20px;}
.sld-pill-row{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0;}
.sld-pill{background:var(--sld-panel);border:1px solid var(--sld-line);border-radius:10px;padding:12px 16px;color:var(--sld-text);font-size:14px;}
.sld-cta{margin:30px auto;max-width:var(--sld-maxw);padding:30px 24px;text-align:center;
  background:linear-gradient(135deg,rgba(32,196,201,.12),rgba(138,123,255,.12));border:1px solid var(--sld-line);border-radius:16px;}
.sld-cta h2{margin:0 0 10px;}
.sld-cta a.sld-btn{display:inline-block;margin-top:14px;background:linear-gradient(135deg,var(--sld-cyan),var(--sld-violet));
  color:#06222A;font-weight:700;padding:12px 28px;border-radius:999px;}
.sld-cta a.sld-btn:hover{text-decoration:none;filter:brightness(1.08);}

/* ===== 悬浮胶囊 ===== */
.sld-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:60;}
.sld-float-btn{width:auto;min-width:46px;height:46px;border-radius:23px;border:none;cursor:pointer;
  display:inline-flex;align-items:center;gap:7px;padding:0 16px;font-size:15px;font-weight:700;color:#06222A;
  box-shadow:0 8px 22px rgba(0,0,0,.35);text-decoration:none;white-space:nowrap;}
.sld-float-btn:hover{text-decoration:none;filter:brightness(1.07);}
.sld-float-top{background:linear-gradient(135deg,var(--sld-cyan),#17a8ae);}
.sld-float-card{background:linear-gradient(135deg,var(--sld-violet),#6f5ff0);}
.sld-float-mail{background:linear-gradient(135deg,var(--sld-amber),#d98a2e);}

/* ===== 名片浮层 ===== */
.sld-card-overlay{position:fixed;inset:0;background:rgba(2,10,18,.82);display:flex;align-items:center;justify-content:center;z-index:85;}
.sld-card-overlay[hidden]{display:none;}
.sld-card-box{position:relative;}
.sld-card-img{width:300px;height:500px;object-fit:contain;border-radius:12px;box-shadow:0 24px 70px rgba(0,0,0,.55);background:#fff;}
.sld-card-close{position:absolute;top:-16px;right:-16px;width:36px;height:36px;border-radius:50%;border:none;
  background:var(--sld-panel);color:var(--sld-text);font-size:20px;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.4);}

/* ===== 页脚 ===== */
.sld-footer{border-top:1px solid var(--sld-line);background:var(--sld-bg2);margin-top:30px;}
.sld-footer-inner{max-width:var(--sld-maxw);margin:0 auto;padding:38px 24px 26px;}
.sld-footer-cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;}
.sld-footer-brand{font-weight:700;font-size:17px;margin-bottom:10px;}
.sld-footer-desc{color:var(--sld-muted);font-size:13px;line-height:1.6;max-width:360px;}
.sld-footer-col h4{color:var(--sld-text);font-size:14px;margin:0 0 12px;}
.sld-footer-col ul{list-style:none;padding:0;margin:0;}
.sld-footer-col li{margin:7px 0;}
.sld-footer-col a{color:var(--sld-muted);font-size:13px;}
.sld-footer-col a:hover{color:var(--sld-cyan);}
.sld-footer-bottom{margin-top:26px;padding-top:18px;border-top:1px solid var(--sld-line);color:var(--sld-muted);font-size:13px;display:flex;gap:10px;flex-wrap:wrap;}
.sld-footer-sep{opacity:.5;}

/* ===== 响应式（断点 1024，与 skeleton_contract 一致）===== */
@media (max-width:1024px){
  .sld-nav-toggle{display:block;}
  .sld-nav-menu{position:absolute;top:var(--sld-nav-h);left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--sld-bg2);border-bottom:1px solid var(--sld-line);padding:8px 16px;gap:2px;display:none;}
  .sld-nav-menu.sld-open{display:flex;}
  .sld-nav-item{position:static;}
  .sld-nav-sub{position:static;display:flex;box-shadow:none;border:none;background:transparent;padding:0 0 6px 10px;}
  .sld-article-layout,.sld-product-layout,.sld-list-layout{grid-template-columns:1fr;gap:24px;}
  .sld-toc-aside,.sld-cat-side{order:2;}
  .sld-toc-panel,.sld-cat-panel{position:static;}
  .sld-content-main,.sld-cat-content,.sld-page-main{padding-left:0;}
  .sld-breadcrumb{padding:14px 16px;}
  .sld-breadcrumb:has(+ .sld-list-layout),.sld-breadcrumb:has(+ .sld-page-wrap){padding-left:16px;}
  .sld-footer-cols{grid-template-columns:1fr 1fr;}
  .sld-hero h1{font-size:30px;}
}
@media (max-width:600px){
  .sld-footer-cols{grid-template-columns:1fr;}
  .sld-float-btn{padding:0;width:46px;justify-content:center;}
  .sld-float-btn span{display:none;}
}