:root{
  --bg:#0C131A;
  --surface:#141D27;
  --surface-2:#1B2632;
  --primary:#3B82F6;
  --primary-dark:#2563EB;
  --accent:#F5A623;
  --ok:#3FB950;
  --text:#E6EDF3;
  --muted:#9FB0C0;
  --border:#2A3744;
  --h2-inset:16px;
  --maxw:1200px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  line-height:1.75;
  font-size:16px;
}
a{color:var(--primary);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;}

/* ── 顶部导航 ── */
.asm-header{position:sticky;top:0;z-index:50;background:rgba(12,19,26,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);}
.asm-header-inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:18px;padding:0 20px;height:64px;}
.asm-logo{font-weight:700;font-size:18px;color:var(--text);white-space:nowrap;}
.asm-nav{display:flex;align-items:center;gap:6px;flex:1;}
.asm-nav>a,.asm-nav-item>a{color:var(--muted);padding:10px 12px;border-radius:8px;font-size:15px;}
.asm-nav>a:hover,.asm-nav-item>a:hover{color:var(--text);background:var(--surface-2);text-decoration:none;}
.asm-nav-item{position:relative;}
.asm-nav-sub{display:none;position:absolute;top:100%;left:0;background:var(--surface);border:1px solid var(--border);border-radius:10px;min-width:180px;padding:8px;box-shadow:0 12px 30px rgba(0,0,0,.45);}
.asm-nav-item:hover .asm-nav-sub,.asm-nav-item:focus-within .asm-nav-sub{display:block;}
.asm-nav-sub a{display:block;padding:8px 10px;color:var(--muted);border-radius:6px;}
.asm-nav-sub a:hover{background:var(--surface-2);color:var(--text);}
.asm-nav-toggle{display:none;background:none;border:1px solid var(--border);color:var(--text);font-size:20px;border-radius:8px;width:42px;height:40px;cursor:pointer;}

/* ── 主容器 ── */
.asm-container{max-width:var(--maxw);margin:0 auto;padding:0 20px;}
.asm-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:36px;max-width:var(--maxw);margin:0 auto;padding:24px 20px 60px;}
.asm-content-main{min-width:0;}
.asm-h1{font-size:30px;line-height:1.3;margin:8px 0 18px;color:#fff;}
.asm-toc-aside{position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto;}

/* 面包屑：[M18c++] 左缘与 H2 对齐 */
nav[aria-label="breadcrumb"]{padding-left:var(--h2-inset);margin:14px 0 6px;font-size:13px;color:var(--muted);}
nav[aria-label="breadcrumb"] a{color:var(--muted);}
nav[aria-label="breadcrumb"] .asm-crumb-sep{margin:0 8px;color:var(--border);}
nav[aria-label="breadcrumb"] .asm-crumb-cur{color:var(--text);}

/* ── 正文排版 ── */
.asm-content-main h2{font-size:22px;margin:34px 0 12px;padding-left:var(--h2-inset);color:#fff;border-left:3px solid var(--primary);}
.asm-content-main h3{font-size:18px;margin:24px 0 10px;padding-left:var(--h2-inset);color:#eaf1f8;}
.asm-content-main p{margin:0 0 14px;padding-left:var(--h2-inset);}
.asm-content-main ul,.asm-content-main ol{margin:0 0 14px;padding-left:calc(var(--h2-inset) + 22px);}
.asm-content-main li{margin:6px 0;}
.asm-content-main blockquote{margin:16px 0;padding:12px 16px;padding-left:calc(var(--h2-inset) + 6px);background:var(--surface);border-left:3px solid var(--accent);border-radius:8px;color:var(--muted);}
.asm-summary{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px 18px;padding-left:calc(var(--h2-inset) + 18px);margin:0 0 16px;color:var(--text);}
.asm-keywords{font-size:13px;color:var(--muted);margin:0 0 18px;padding-left:var(--h2-inset);}
.asm-keywords .asm-kw{display:inline-block;background:var(--surface-2);border:1px solid var(--border);border-radius:20px;padding:3px 12px;margin:0 6px 6px 0;}
.asm-tag{display:inline-block;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:2px 8px;margin:0 4px 4px 0;font-size:12px;color:var(--muted);}

/* 表格：[M26] 覆盖正文全部 table */
.asm-content-main table,table.asm-spec{border-collapse:collapse;width:100%;margin:16px 0;font-size:14px;}
.asm-content-main table th,.asm-content-main table td,table.asm-spec th,table.asm-spec td{border:1px solid #4A5B6B;padding:9px 12px;text-align:left;}
.asm-content-main table th,table.asm-spec th{background:var(--primary-dark);color:#fff;font-weight:600;}
.asm-content-main table tr:nth-child(even) td,table.asm-spec tr:nth-child(even) td{background:var(--surface);}

/* 结论块 */
.asm-concl{border-left:3px solid var(--ok);}
.asm-case{border-left:3px solid var(--accent);background:var(--surface);}

/* ── TOC 折叠面板 [M25] ── */
details.asm-toc-panel,details.asm-cat-panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:10px 14px;margin-bottom:16px;}
details.asm-toc-panel>summary,details.asm-cat-panel>summary{cursor:pointer;font-weight:600;color:#fff;list-style:none;display:flex;align-items:center;justify-content:space-between;}
details.asm-toc-panel>summary::after,details.asm-cat-panel>summary::after{content:"▾";color:var(--muted);transition:transform .2s;}
details.asm-toc-panel[open]>summary::after,details.asm-cat-panel[open]>summary::after{transform:rotate(180deg);}
.asm-toc-list{list-style:none;margin:10px 0 0;padding:0;}
.asm-toc-list li{margin:6px 0;}
.asm-toc-list a{color:var(--muted);font-size:14px;}
.asm-toc-list a:hover{color:var(--text);}

/* ── 列表页栅格 [M27] ── */
.asm-list-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;max-width:var(--maxw);margin:0 auto;padding:24px 20px 60px;}
.asm-cat-side{min-width:0;}
.asm-cat-content{min-width:0;}
ul.category-list{list-style:none;margin:8px 0 0;padding:0;}
ul.category-list li{margin:2px 0;}
ul.category-list a{display:block;padding:9px 12px;border-radius:8px;color:var(--muted);}
ul.category-list a:hover,ul.category-list a.active{background:var(--surface-2);color:var(--text);text-decoration:none;}
.asm-list-intro{color:var(--muted);padding-left:var(--h2-inset);}
.asm-item-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px;margin-top:18px;}
.asm-item-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px;transition:transform .15s,border-color .15s;}
.asm-item-card:hover{transform:translateY(-3px);border-color:var(--primary);}
.asm-item-card h3{margin:0 0 8px;font-size:17px;}
.asm-item-card h3 a{color:#fff;}
.asm-item-card p{color:var(--muted);font-size:13px;margin:0;}

/* 分页 */
.asm-pager{display:flex;gap:8px;margin-top:24px;flex-wrap:wrap;}
.asm-pager a,.asm-pager span{padding:7px 12px;border:1px solid var(--border);border-radius:8px;color:var(--muted);}
.asm-pager a:hover{color:var(--text);border-color:var(--primary);}
.asm-pager .asm-cur{background:var(--primary);color:#fff;border-color:var(--primary);}

/* ── 页面卡片 ── */
.asm-page-wrap{max-width:var(--maxw);margin:0 auto;padding:24px 20px 60px;}
.asm-page-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:28px 32px;}
.asm-page-card{--h2-inset:48px;}
.asm-page-card h2{font-size:22px;margin:30px 0 12px;padding-left:var(--h2-inset);color:#fff;border-left:3px solid var(--primary);}
.asm-page-card h3{font-size:18px;margin:22px 0 10px;padding-left:var(--h2-inset);}
.asm-page-card p{margin:0 0 14px;padding-left:var(--h2-inset);}
.asm-page-card ul,.asm-page-card ol{margin:0 0 14px;padding-left:calc(var(--h2-inset) + 22px);}

/* ── FAQ 裸 details ── */
details.asm-faq{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:12px 16px;margin:10px 0;}
details.asm-faq>summary{cursor:pointer;font-weight:600;color:#fff;}
details.asm-faq>summary::after{content:"▾";float:right;color:var(--muted);}
.asm-faq-a{margin:10px 0 0;color:var(--muted);}

/* ── 首页 ── */
.asm-hero{background:linear-gradient(135deg,#0E1A2B 0%,#12243A 60%,#0C131A 100%);border-bottom:1px solid var(--border);}
.asm-hero-inner{max-width:var(--maxw);margin:0 auto;padding:72px 20px;text-align:center;}
.asm-hero-title{font-size:42px;margin:0 0 16px;color:#fff;letter-spacing:1px;}
.asm-hero-sub{font-size:18px;color:var(--muted);max-width:760px;margin:0 auto 28px;}
.asm-hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.asm-btn{display:inline-block;padding:12px 26px;border-radius:30px;font-weight:600;font-size:15px;}
.asm-btn-primary{background:var(--primary);color:#fff;}
.asm-btn-primary:hover{background:var(--primary-dark);text-decoration:none;}
.asm-btn-ghost{border:1px solid var(--primary);color:var(--primary);}
.asm-btn-ghost:hover{background:rgba(59,130,246,.12);text-decoration:none;}
.asm-home-section{max-width:var(--maxw);margin:0 auto;padding:48px 20px;}
.asm-home-h2{font-size:26px;color:#fff;margin:0 0 22px;border-left:4px solid var(--accent);padding-left:12px;}
.asm-prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;}
.asm-prod-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px;text-align:center;color:var(--text);font-size:15px;}
.asm-kw-caps,.asm-scen-caps{display:flex;flex-wrap:wrap;gap:12px;}
.asm-kw-cap,.asm-scen-cap{background:var(--surface-2);border:1px solid var(--border);border-radius:24px;padding:8px 18px;color:var(--muted);font-size:14px;}
.asm-baseline{background:var(--surface);border-radius:16px;}
.asm-baseline-text{color:var(--muted);font-size:16px;padding:0 4px;}
.asm-chain{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:18px 0 0;counter-reset:step;}
.asm-chain li{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:10px 16px;color:var(--text);font-size:14px;position:relative;}
.asm-chain li:not(:last-child)::after{content:"→";position:absolute;right:-14px;top:50%;transform:translateY(-50%);color:var(--accent);}
.asm-home-cols{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.asm-home-h3{color:#fff;font-size:18px;margin:0 0 12px;}
.asm-home-list{list-style:none;padding:0;margin:0;}
.asm-home-list li{padding:8px 0;border-bottom:1px solid var(--border);}
.asm-home-list a{color:var(--muted);}
.asm-home-list a:hover{color:var(--text);}

/* 归档 */
.asm-arch-h2{color:#fff;font-size:24px;margin:30px 0 14px;}
.asm-arch-h3{color:var(--accent);font-size:18px;margin:18px 0 8px;}
.asm-arch-list{list-style:none;padding:0;margin:0 0 10px;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:6px 24px;}
.asm-arch-list li{padding:5px 0;}
.asm-404{text-align:center;}

/* ── 悬浮胶囊 ── */
.asm-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:12px;z-index:60;}
.asm-float-btn{width:52px;height:52px;border-radius:26px;border:none;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-size:18px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.4);}
.asm-float-btn span{font-size:10px;margin-top:1px;}
.asm-float-btn:hover{transform:scale(1.06);}
.asm-card-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:80;}
.asm-card-overlay[hidden]{display:none;}
.asm-card-box{position:relative;background:#fff;padding:10px;border-radius:10px;}
.asm-card-box img{max-width:90vw;max-height:88vh;display:block;}
.asm-card-close{position:absolute;top:-14px;right:-14px;width:34px;height:34px;border-radius:50%;border:none;background:#fff;color:#000;font-size:20px;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.4);}

/* ── 页脚 ── */
.asm-footer{background:var(--surface);border-top:1px solid var(--border);margin-top:40px;}
.asm-footer-inner{max-width:var(--maxw);margin:0 auto;padding:36px 20px 20px;}
.asm-foot-cols{display:grid;grid-template-columns:2.2fr 1fr 1fr;gap:28px;}
.asm-foot-title{color:#fff;font-weight:600;margin-bottom:12px;}
.asm-foot-text{color:var(--muted);font-size:14px;}
.asm-foot-col a{display:block;color:var(--muted);font-size:14px;padding:4px 0;}
.asm-foot-col a:hover{color:var(--text);}
.asm-footer-bottom{border-top:1px solid var(--border);margin-top:24px;padding-top:16px;color:var(--muted);font-size:13px;text-align:center;}

/* ── 响应式：[M25] 断点 1024 ── */
@media (max-width:1024px){
  .asm-layout{grid-template-columns:1fr;}
  .asm-list-layout{grid-template-columns:1fr;}
  .asm-toc-aside{position:static;max-height:none;}
  .asm-nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--surface);border-bottom:1px solid var(--border);padding:10px;}
  .asm-nav.open{display:flex;}
  .asm-nav-sub{position:static;box-shadow:none;border:none;background:transparent;padding:0 0 0 12px;}
  .asm-nav-toggle{display:block;margin-left:auto;}
  .asm-home-cols{grid-template-columns:1fr;}
}
@media (max-width:600px){
  .asm-hero-title{font-size:30px;}
  .asm-h1{font-size:24px;}
  .asm-foot-cols{grid-template-columns:1fr;}
}