:root{
  --bg:#0c1116; --panel:#121a22; --panel2:#172230; --ink:#e7eef5; --muted:#9bb0c2;
  --line:#23323f; --accent:#19e3b1; --accent2:#37b6ff; --accent-ink:#04130f;
  --maxw:1180px; --h2-inset:16px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg); color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  line-height:1.75; font-size:16px;
}
a{color:var(--accent2);text-decoration:none;}
a:hover{text-decoration:underline;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
/* ===== 顶栏 ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(12,17,22,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.header-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;gap:18px;}
.logo{font-weight:800;font-size:18px;color:var(--ink);letter-spacing:.5px;white-space:nowrap;}
.logo:hover{text-decoration:none;color:var(--accent);}
.main-nav{display:flex;gap:6px;align-items:center;margin-left:auto;flex-wrap:wrap;}
.main-nav>a,.nav-parent{color:var(--muted);padding:8px 12px;border-radius:8px;font-size:15px;cursor:pointer;}
.main-nav>a:hover,.nav-parent:hover{color:var(--ink);background:var(--panel2);text-decoration:none;}
.nav-group{position:relative;}
.nav-sub{display:none;position:absolute;top:100%;left:0;min-width:160px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 6px 6px;flex-direction:column;z-index:60;}
.nav-group:hover .nav-sub{display:flex;}
.nav-sub a{padding:8px 10px;color:var(--muted);border-radius:6px;}
.nav-sub a:hover{background:var(--panel2);color:var(--ink);}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--ink);font-size:20px;border-radius:8px;padding:4px 10px;margin-left:auto;}
/* ===== 面包屑 ===== */
.breadcrumb{padding:18px 0 6px var(--h2-inset);color:var(--muted);font-size:14px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .cur{color:var(--ink);}
/* ===== 布局 ===== */
.layout{display:flex;gap:36px;align-items:flex-start;padding-bottom:48px;}
.content{flex:1 1 auto;min-width:0;max-width:760px;}
.toc-aside{flex:0 0 240px;position:sticky;top:84px;max-height:calc(100vh - 110px);overflow:auto;}
body.article{--h2-inset:16px;}
body.product{--h2-inset:16px;}
body.page{--h2-inset:48px;}
body.home,body.list{--h2-inset:0px;}
/* ===== 文章正文 ===== */
.article-body h1{font-size:30px;line-height:1.3;margin:6px 0 18px;}
.article-body h2{padding-left:var(--h2-inset);font-size:22px;margin:34px 0 12px;color:#fff;border-left:3px solid var(--accent);}
.article-body h3{padding-left:var(--h2-inset);font-size:18px;margin:24px 0 10px;color:#dff;}
.article-body p{padding-left:var(--h2-inset);margin:0 0 14px;}
.article-body ul,.article-body ol{padding-left:calc(var(--h2-inset) + 22px);margin:0 0 14px;}
.article-body li{margin:4px 0;}
.article-body blockquote{padding:14px 18px;margin:14px 0 14px var(--h2-inset);background:var(--panel);border-left:4px solid var(--accent2);border-radius:8px;color:var(--muted);}
.article-body code{background:var(--panel2);padding:2px 6px;border-radius:5px;font-size:14px;color:var(--accent);}
.article-body table.data{width:calc(100% - var(--h2-inset));margin:14px 0 18px var(--h2-inset);border-collapse:collapse;font-size:15px;}
.article-body table.data th,.article-body table.data td{border:1px solid var(--line);padding:9px 12px;text-align:left;}
.article-body table.data th{background:var(--panel2);color:var(--ink);}
.article-body table.data tr:nth-child(even) td{background:rgba(255,255,255,.02);}
.article-body details{border:1px solid var(--line);border-radius:10px;margin:12px 0 12px var(--h2-inset);background:var(--panel);overflow:hidden;}
.article-body details summary{cursor:pointer;padding:12px 16px;font-weight:600;color:var(--ink);list-style:none;}
.article-body details summary::-webkit-details-marker{display:none;}
.article-body details[open] summary{border-bottom:1px solid var(--line);color:var(--accent);}
.article-body details p{padding:10px 16px;margin:0;color:var(--muted);}
.article-body .summary-block{background:linear-gradient(135deg,rgba(25,227,177,.08),rgba(55,182,255,.06));border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:0 0 18px var(--h2-inset);}
.article-body .kw-line{color:var(--muted);font-size:14px;margin:0 0 12px var(--h2-inset);}
.article-body .update-line{color:var(--muted);font-size:13px;margin:0 0 16px var(--h2-inset);}
.related{margin-top:30px;padding-top:18px;border-top:1px solid var(--line);}
.related-h{font-size:18px;color:#fff;margin:0 0 10px;}
.related ul{padding-left:20px;}
/* ===== 列表页 ===== */
.list-layout{display:flex;gap:32px;align-items:flex-start;padding-bottom:48px;}
.cat-side{flex:0 0 200px;position:sticky;top:84px;}
.cat-side-title{font-size:14px;color:var(--muted);margin:0 0 10px;padding-left:12px;}
.category-list{list-style:none;margin:0;padding:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;}
.category-list li a{display:block;padding:11px 14px;color:var(--muted);border-bottom:1px solid var(--line);}
.category-list li:last-child a{border-bottom:none;}
.category-list li a:hover{background:var(--panel2);color:var(--ink);text-decoration:none;}
.category-list li.active a{background:var(--panel2);color:var(--accent);font-weight:600;}
.cat-content{flex:1 1 auto;min-width:0;}
.cat-content h1{font-size:26px;margin:6px 0 16px;}
.link-list{list-style:none;margin:0;padding:0;}
.link-list li{padding:14px 0;border-bottom:1px solid var(--line);}
.link-list li a{font-size:17px;font-weight:600;color:var(--ink);}
.link-list li a:hover{color:var(--accent);text-decoration:none;}
.link-list .desc{display:block;color:var(--muted);font-size:14px;margin-top:4px;}
.link-list .meta{display:inline-block;margin-left:10px;color:var(--muted);font-size:13px;}
.empty{color:var(--muted);}
/* ===== 首页 ===== */
.hero{padding:40px 0 28px;}
.hero h1{font-size:34px;margin:0 0 12px;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p{color:var(--muted);max-width:760px;font-size:17px;}
.home-block{margin:18px 0 30px;}
.block-head{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:14px;}
.block-head h2{font-size:22px;margin:0;color:#fff;}
.more{color:var(--accent2);font-size:14px;}
.cat-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.cat-tag{padding:6px 12px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:14px;}
.cat-tag:hover{color:var(--accent);border-color:var(--accent);text-decoration:none;}
.support-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
.support-card{display:flex;align-items:center;justify-content:center;height:84px;background:var(--panel);border:1px solid var(--line);border-radius:12px;color:var(--ink);font-weight:600;}
.support-card:hover{border-color:var(--accent);color:var(--accent);text-decoration:none;}
/* ===== TOC ===== */
.toc{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;}
.toc-title{margin:0 0 8px;font-size:14px;color:var(--accent);}
.toc ul{list-style:none;margin:0;padding:0;}
.toc li{margin:6px 0;}
.toc li a{color:var(--muted);font-size:14px;}
.toc li a:hover{color:var(--accent);text-decoration:none;}
/* ===== 页脚 ===== */
.site-footer{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:14px;}
.foot-note{opacity:.7;font-size:13px;}
/* ===== 悬浮胶囊 ===== */
.capsule{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:80;}
.cap-btn{width:48px;height:48px;border-radius:24px;border:none;background:linear-gradient(135deg,var(--accent),var(--accent2));color:var(--accent-ink);font-weight:700;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:18px;box-shadow:0 6px 20px rgba(25,227,177,.35);}
.cap-btn span{font-size:10px;font-weight:600;}
.cap-btn:hover{filter:brightness(1.08);}
.wx-modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:200;align-items:center;justify-content:center;}
.wx-box{background:#fff;border-radius:12px;padding:10px;max-width:90vw;}
.wx-box img{display:block;width:auto;height:auto;max-width:300px;max-height:500px;object-fit:contain;}
.wx-close{display:block;margin:8px auto 0;background:var(--accent);color:var(--accent-ink);border:none;border-radius:8px;padding:6px 18px;font-weight:700;cursor:pointer;}
/* ===== 响应式 ===== */
@media (max-width:900px){
  .layout,.list-layout{flex-direction:column;}
  .toc-aside,.cat-side{position:static;flex-basis:auto;width:100%;margin-bottom:18px;}
  .content{max-width:100%;}
  .support-row{grid-template-columns:repeat(2,1fr);}
  .nav-toggle{display:block;}
  .main-nav{display:none;position:absolute;top:60px;left:0;right:0;background:var(--panel);flex-direction:column;padding:10px;border-bottom:1px solid var(--line);}
  .main-nav.open{display:flex;}
  .nav-sub{position:static;display:flex;box-shadow:none;border:none;background:none;padding:6px 0 6px 10px;}
  .article-body h2,.article-body h3,.article-body p,.article-body ul,.article-body ol,.article-body blockquote,.article-body details,.article-body table.data,.article-body .summary-block,.article-body .kw-line,.article-body .update-line{padding-left:0;margin-left:0;width:100%;}
}