:root{
  --wg-bg:#0A1626;
  --wg-surface:#0F2236;
  --wg-surface-2:#13293F;
  --wg-primary:#23D3C7;
  --wg-primary-d:#159A90;
  --wg-accent:#FF8A3D;
  --wg-text:#E6EEF5;
  --wg-muted:#8FA3B8;
  --wg-line:#1E3A52;
  --wg-line-2:#2A4A66;
  --wg-grad:linear-gradient(120deg,#23D3C7,#FF8A3D);
  --wg-h2-inset:16px;
  --wg-maxw:1200px;
  --wg-radius:14px;
}
body.wg-page{ --wg-h2-inset:48px; }
body.wg-article,body.wg-product,body.wg-list,body.wg-home,body.wg-archive{ --wg-h2-inset:16px; }

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--wg-bg);color:var(--wg-text);
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
a{color:var(--wg-primary);text-decoration:none;}
a:hover{color:var(--wg-accent);}
img{max-width:100%;}
h1,h2,h3,h4{line-height:1.35;color:#fff;font-weight:700;}
p{margin:0 0 1em;}

/* ===== Header ===== */
.wg-header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(10,22,38,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--wg-line);}
.wg-header-inner{max-width:var(--wg-maxw);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:20px;}
.wg-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;}
.wg-logo-mark{color:var(--wg-primary);font-size:22px;}
.wg-nav{display:flex;align-items:center;gap:18px;margin-left:auto;}
.wg-nav a{color:var(--wg-text);font-size:15px;padding:6px 2px;}
.wg-nav a:hover{color:var(--wg-primary);}
.wg-nav-item{position:relative;}
.wg-nav-link{cursor:pointer;}
.wg-nav-sub{display:none;position:absolute;top:100%;left:0;min-width:160px;background:var(--wg-surface);border:1px solid var(--wg-line);border-radius:10px;padding:8px 0;box-shadow:0 12px 30px rgba(0,0,0,.4);}
.wg-nav-item:hover .wg-nav-sub{display:block;}
.wg-nav-sub a{display:block;padding:8px 16px;font-size:14px;white-space:nowrap;}
.wg-nav-toggle{display:none;background:none;border:1px solid var(--wg-line);color:#fff;font-size:22px;width:42px;height:38px;border-radius:8px;cursor:pointer;}

/* ===== Layout ===== */
.wg-main{padding-top:64px;}
.wg-container{max-width:var(--wg-maxw);margin:0 auto;padding:0 24px;}
.wg-layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:40px;align-items:start;padding:28px 0 60px;}
.wg-content-main{padding-left:var(--wg-h2-inset);min-width:0;}
.wg-breadcrumb{padding:18px 0 6px var(--wg-h2-inset);font-size:13px;color:var(--wg-muted);}
.wg-breadcrumb-list{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;}
.wg-breadcrumb-list li{display:flex;align-items:center;gap:6px;}
.wg-breadcrumb a{color:var(--wg-muted);}
.wg-breadcrumb a:hover{color:var(--wg-primary);}
.wg-sep{color:var(--wg-line-2);}
.wg-cur{color:var(--wg-text);}

/* ===== Article / Product common ===== */
.wg-h1{font-size:30px;margin:0 0 14px;}
.wg-summary{font-size:16px;color:var(--wg-muted);background:var(--wg-surface);border-left:3px solid var(--wg-primary);padding:14px 18px;border-radius:0 10px 10px 0;margin:0 0 16px;}
.wg-keywords,.wg-product-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.wg-kw,.wg-tag-text{font-size:13px;color:var(--wg-primary);background:rgba(35,211,199,.12);border:1px solid rgba(35,211,199,.3);padding:3px 10px;border-radius:999px;}
.wg-updated{font-size:13px;color:var(--wg-muted);}
.wg-updated time{color:var(--wg-muted);}
.wg-article-body,.wg-product-body{margin-top:18px;}

/* headings inside body use inset var so they align with breadcrumb */
.wg-content-main h2,.wg-content-main h3{padding-left:0;scroll-margin-top:84px;margin:28px 0 12px;color:#fff;}
.wg-content-main h2{font-size:22px;border-left:4px solid var(--wg-primary);padding-left:12px;}
.wg-content-main h3{font-size:18px;color:var(--wg-primary);}

/* ===== Tables (M26: cover all body tables) ===== */
.wg-content-main table,table.wg-spec{border-collapse:collapse;width:100%;margin:16px 0;font-size:14px;background:var(--wg-surface);}
.wg-content-main table th,.wg-content-main table td,table.wg-spec th,table.wg-spec td{border:1px solid #cbd5e1;padding:9px 12px;text-align:left;color:var(--wg-text);}
.wg-content-main table th,table.wg-spec th{background:var(--wg-primary-d);color:#04201d;font-weight:700;}
.wg-content-main table tr:nth-child(even) td,table.wg-spec tr:nth-child(even) td{background:rgba(255,255,255,.03);}

/* ===== Lists ===== */
.wg-content-main ul,.wg-content-main ol{padding-left:22px;margin:0 0 1em;}
.wg-content-main li{margin:6px 0;}
.wg-content-main blockquote{border-left:3px solid var(--wg-accent);background:var(--wg-surface);padding:12px 16px;margin:16px 0;border-radius:0 10px 10px 0;color:var(--wg-text);}

/* ===== FAQ (bare details) ===== */
.wg-faq{margin:30px 0;}
.wg-faq-title{font-size:22px;border-left:4px solid var(--wg-accent);padding-left:12px;color:#fff;}
.wg-faq-list{display:flex;flex-direction:column;gap:10px;}
.wg-faq-item{border:1px solid var(--wg-line);border-radius:10px;background:var(--wg-surface);overflow:hidden;}
.wg-faq-q{cursor:pointer;padding:13px 16px;font-weight:600;color:#fff;list-style:none;}
.wg-faq-q::-webkit-details-marker{display:none;}
.wg-faq-q::before{content:"+";color:var(--wg-primary);margin-right:10px;font-weight:700;}
.wg-faq-item[open] .wg-faq-q::before{content:"−";}
.wg-faq-a{padding:0 16px 14px;color:var(--wg-muted);}

/* ===== TOC aside (M1'': sticky, no fixed) ===== */
.wg-toc-aside{position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto;}
.wg-toc-panel,.wg-cat-panel{border:1px solid var(--wg-line);border-radius:12px;background:var(--wg-surface);padding:6px 0;}
.wg-toc-summary,.wg-cat-summary{cursor:pointer;padding:12px 16px;font-weight:700;color:#fff;list-style:none;display:flex;align-items:center;}
.wg-toc-summary::-webkit-details-marker,.wg-cat-summary::-webkit-details-marker{display:none;}
.wg-toc-summary::after,.wg-cat-summary::after{content:"▾";margin-left:auto;color:var(--wg-primary);transition:transform .2s;}
.wg-toc-panel:not([open]) .wg-toc-summary::after,.wg-cat-panel:not([open]) .wg-cat-summary::after{transform:rotate(-90deg);}
.wg-toc-list,.wg-category-list{list-style:none;margin:0;padding:4px 0 10px;}
.wg-toc-li a,.wg-category-list a{display:block;padding:6px 18px;color:var(--wg-muted);font-size:14px;border-left:2px solid transparent;}
.wg-toc-li a:hover,.wg-category-list a:hover{color:var(--wg-primary);border-left-color:var(--wg-primary);}
.wg-toc-lv3 a{padding-left:34px;font-size:13px;}
.wg-category-list .wg-cat-all a{color:var(--wg-primary);font-weight:600;}
.wg-category-list .wg-cat-active a{color:var(--wg-accent);font-weight:700;}

/* ===== Case study ===== */
.wg-case{margin:22px 0;background:linear-gradient(135deg,rgba(35,211,199,.1),rgba(255,138,61,.08));border:1px solid var(--wg-line-2);border-radius:12px;padding:14px 16px;}
.wg-case-tag{display:inline-block;font-size:12px;color:#04201d;background:var(--wg-primary);padding:2px 10px;border-radius:999px;font-weight:700;margin-bottom:8px;}
.wg-case-text{margin:0;color:var(--wg-text);font-size:14px;}

/* ===== Related ===== */
.wg-related{margin:30px 0;border-top:1px solid var(--wg-line);padding-top:20px;}
.wg-related-title{font-size:20px;color:#fff;margin:0 0 12px;}
.wg-related-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.wg-related-link{color:var(--wg-primary);font-weight:600;}
.wg-related-why{color:var(--wg-muted);font-size:13px;margin-left:6px;}

/* ===== List page (M27: 240px minmax(0,1fr)) ===== */
.list-layout .layout-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;align-items:start;padding:28px 0 60px;}
.wg-cat-header{margin-bottom:18px;}
.wg-cat-intro{color:var(--wg-muted);}
.wg-item-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:18px;}
.wg-item{border:1px solid var(--wg-line);border-radius:12px;background:var(--wg-surface);padding:18px 20px;transition:border-color .2s,transform .2s;}
.wg-item:hover{border-color:var(--wg-primary);transform:translateY(-2px);}
.wg-item-title{font-size:19px;margin:0 0 6px;}
.wg-item-title a{color:#fff;}
.wg-item-meta{font-size:13px;color:var(--wg-accent);margin:0 0 6px;}
.wg-item-desc{color:var(--wg-muted);font-size:14px;margin:0;}

/* ===== Pagination ===== */
.wg-pagination{display:flex;align-items:center;gap:16px;margin-top:24px;font-size:14px;}
.wg-page-prev,.wg-page-next{color:var(--wg-primary);border:1px solid var(--wg-line);padding:6px 14px;border-radius:8px;}
.wg-page-disabled{color:var(--wg-muted);border-color:var(--wg-line);opacity:.5;}

/* ===== Pages (about/contact...) ===== */
.wg-page-wrap{padding:28px 0 60px;}
.wg-page-main{padding-left:var(--wg-h2-inset);max-width:880px;}
.wg-page-body h2{font-size:22px;border-left:4px solid var(--wg-primary);padding-left:12px;color:#fff;margin:28px 0 12px;}
.wg-page-body h3{font-size:18px;color:var(--wg-primary);}
.wg-page-body table,.wg-page-body table.wg-spec{border-collapse:collapse;width:100%;margin:16px 0;}
.wg-page-body table th,.wg-page-body table td{border:1px solid #cbd5e1;padding:9px 12px;}

/* ===== Home ===== */
.wg-home{padding:28px 0 60px;}
.wg-hero{position:relative;overflow:hidden;border-radius:18px;padding:56px 40px;margin:10px 0 40px;background:radial-gradient(120% 140% at 0% 0%,rgba(35,211,199,.18),transparent 55%),radial-gradient(120% 140% at 100% 100%,rgba(255,138,61,.16),transparent 55%),var(--wg-surface);border:1px solid var(--wg-line);}
.wg-hero-bg{position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(35,211,199,.06) 0 1px,transparent 1px 40px),repeating-linear-gradient(0deg,rgba(35,211,199,.06) 0 1px,transparent 1px 40px);}
.wg-hero-inner{position:relative;}
.wg-hero-title{font-size:38px;margin:0 0 12px;background:var(--wg-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.wg-hero-sub{font-size:17px;color:var(--wg-primary);margin:0 0 14px;}
.wg-hero-desc{color:var(--wg-muted);max-width:760px;}
.wg-hero-cta{display:flex;gap:14px;margin-top:22px;}
.wg-btn{display:inline-block;padding:11px 22px;border-radius:999px;font-weight:700;font-size:15px;}
.wg-btn-primary{background:var(--wg-grad);color:#04201d;}
.wg-btn-ghost{border:1px solid var(--wg-line-2);color:var(--wg-text);}
.wg-section{margin:40px 0;}
.wg-section-title{font-size:24px;border-left:4px solid var(--wg-accent);padding-left:12px;color:#fff;margin:0 0 20px;}
.wg-cat-grid,.wg-persp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;list-style:none;padding:0;margin:0;}
.wg-cat-card,.wg-persp-card{border:1px solid var(--wg-line);border-radius:12px;background:var(--wg-surface);transition:border-color .2s,transform .2s;}
.wg-cat-card:hover,.wg-persp-card:hover{border-color:var(--wg-primary);transform:translateY(-3px);}
.wg-cat-card a,.wg-persp-card a{display:flex;flex-direction:column;gap:6px;padding:18px 20px;height:100%;}
.wg-cat-card-name,.wg-persp-name{font-size:17px;font-weight:700;color:#fff;}
.wg-cat-card-go{font-size:13px;color:var(--wg-primary);}
.wg-persp-desc{font-size:13px;color:var(--wg-muted);}
.wg-scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;list-style:none;padding:0;margin:0;}
.wg-scene-card{display:flex;align-items:center;gap:10px;background:var(--wg-surface);border:1px solid var(--wg-line);border-radius:10px;padding:12px 16px;color:var(--wg-text);font-size:14px;}
.wg-scene-dot{width:8px;height:8px;border-radius:50%;background:var(--wg-grad);flex:0 0 auto;}
.wg-latest-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.wg-latest-item{display:flex;flex-direction:column;gap:4px;border-bottom:1px solid var(--wg-line);padding-bottom:12px;}
.wg-latest-item a{color:#fff;font-weight:600;font-size:16px;}
.wg-latest-sum{color:var(--wg-muted);font-size:13px;}
.wg-cta{text-align:center;background:var(--wg-surface);border:1px solid var(--wg-line);border-radius:16px;padding:36px 20px;}

/* ===== Footer ===== */
.wg-footer{background:#07111d;border-top:1px solid var(--wg-line);margin-top:40px;}
.wg-footer-inner{max-width:var(--wg-maxw);margin:0 auto;padding:36px 24px 20px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px;}
.wg-footer-col h4{font-size:15px;color:var(--wg-primary);margin:0 0 12px;}
.wg-footer-col p{color:var(--wg-muted);font-size:13px;}
.wg-footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px;}
.wg-footer-col a{color:var(--wg-muted);font-size:13px;}
.wg-footer-col a:hover{color:var(--wg-primary);}
.wg-footer-bottom{border-top:1px solid var(--wg-line);text-align:center;padding:16px;color:var(--wg-muted);font-size:12px;}

/* ===== Floating capsule (colored long capsule) ===== */
.wg-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;display:flex;flex-direction:column;gap:10px;}
.wg-float-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;width:56px;height:56px;border-radius:999px;background:var(--wg-grad);color:#04201d;font-weight:700;font-size:11px;border:none;cursor:pointer;box-shadow:0 8px 22px rgba(0,0,0,.4);transition:transform .2s;}
.wg-float-btn:hover{transform:scale(1.07);}
.wg-float-ico{font-size:18px;line-height:1;}
.wg-float-mail{text-decoration:none;}

/* ===== WeCom card popup ===== */
.wg-card-mask{position:fixed;inset:0;background:rgba(4,10,18,.7);z-index:80;display:flex;align-items:center;justify-content:center;}
.wg-card-mask[hidden]{display:none;}
.wg-card-pop{position:relative;background:transparent;}
.wg-card-close{position:absolute;top:-14px;right:-14px;width:32px;height:32px;border-radius:50%;background:var(--wg-surface);color:#fff;border:1px solid var(--wg-line);font-size:18px;cursor:pointer;}
.wg-card-img{display:block;width:300px;height:500px;object-fit:contain;background:#fff;border-radius:8px;box-shadow:0 16px 40px rgba(0,0,0,.5);}

/* ===== 404 ===== */
.wg-404{text-align:center;padding:60px 0;}

/* ===== Responsive (M25: panels never display:none; breakpoint 1024) ===== */
@media (max-width:1024px){
  .wg-nav{position:fixed;top:64px;right:0;flex-direction:column;align-items:flex-start;background:var(--wg-surface);border:1px solid var(--wg-line);border-radius:0 0 0 12px;padding:14px 18px;gap:10px;display:none;}
  .wg-nav.wg-open{display:flex;}
  .wg-nav-toggle{display:block;margin-left:auto;}
  .wg-nav-item{width:100%;}
  .wg-nav-sub{position:static;display:flex;flex-direction:column;box-shadow:none;border:none;background:transparent;padding:4px 0 4px 12px;}
  .wg-layout-grid{grid-template-columns:1fr;}
  .wg-toc-aside{position:static;max-height:none;margin-top:18px;}
  .list-layout .layout-grid{grid-template-columns:1fr;}
  .cat-side{margin-bottom:8px;}
  .wg-hero{padding:40px 22px;}
  .wg-hero-title{font-size:30px;}
  .wg-cat-grid,.wg-persp-grid,.wg-scene-grid{grid-template-columns:1fr 1fr;}
  .wg-footer-inner{grid-template-columns:1fr 1fr;}
}
@media (max-width:600px){
  .wg-cat-grid,.wg-persp-grid,.wg-scene-grid,.wg-footer-inner{grid-template-columns:1fr;}
  .wg-content-main{padding-left:0;}
  .wg-page-main{padding-left:0;}
  .wg-breadcrumb{padding-left:0;}
  .wg-h1{font-size:24px;}
  .wg-float{right:10px;}
}