:root{
  --bg:#0a1020;
  --bg-soft:#0f1830;
  --panel:#121d38;
  --panel-2:#16223f;
  --ink:#e8eefc;
  --ink-soft:#aab6d4;
  --line:#cbd5e1;
  --brand:#27c6ff;
  --brand-2:#3b82f6;
  --brand-3:#7c5cff;
  --accent:#16e0c0;
  --maxw:1200px;
  --h2-inset:16px;
  --header-h:64px;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:linear-gradient(180deg,#070c18,#0a1020 40%,#0a1020);
  color:var(--ink);font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  line-height:1.75;-webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--h2-inset)}

/* 顶栏 */
.site-header{position:sticky;top:0;z-index:50;background:rgba(8,13,26,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid rgba(39,198,255,.18)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{font-weight:800;font-size:18px;letter-spacing:.5px;color:var(--ink);
  background:linear-gradient(90deg,var(--brand),var(--brand-3));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.primary-nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
.primary-nav a{color:var(--ink-soft);font-size:15px}
.primary-nav a:hover{color:var(--brand);text-decoration:none}
.nav-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:6px 12px}

/* 布局 */
.article-layout{margin-top:24px}
.breadcrumb{font-size:13px;color:var(--ink-soft);padding:10px 0;margin-bottom:8px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.breadcrumb li::after{content:"›";margin-left:8px;color:var(--ink-soft)}
.breadcrumb li:last-child::after{content:""}
.layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:36px;align-items:start}
.content-main{max-width:760px}
.content-main h1{font-size:30px;line-height:1.3;margin:.2em 0 .4em}
.content-main h2{font-size:22px;margin:1.8em 0 .6em;padding-left:10px;border-left:3px solid var(--brand)}
.content-main h3{font-size:18px;margin:1.4em 0 .5em;color:var(--ink)}
.lead-summary{font-size:16px;color:var(--ink);background:var(--panel);border:1px solid rgba(39,198,255,.16);
  border-radius:var(--radius);padding:16px 18px}
.keyword-row{font-size:14px;color:var(--ink-soft)}
.update-time{font-size:13px;color:var(--ink-soft)}
.conclusion{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid rgba(39,198,255,.2);
  border-radius:var(--radius);padding:16px 20px}
.conclusion h2{border:none;padding-left:0}
.faq-block details{border:1px solid rgba(39,198,255,.2);border-radius:12px;margin:10px 0;background:var(--panel)}
.faq-block summary{cursor:pointer;padding:12px 16px;font-weight:600}
.faq-block summary::after{content:"▾";float:right;transition:transform .2s}
.faq-block details[open] summary::after{transform:rotate(180deg)}
.faq-block .faq-a{padding:0 16px 14px;color:var(--ink-soft)}
.related ul{margin:.4em 0;padding-left:20px}
.related li{margin:6px 0}

/* 目录 */
.toc-aside{position:sticky;top:calc(var(--header-h) + 16px);max-height:calc(100vh - 100px);overflow:auto}
.toc-panel{border:1px solid rgba(39,198,255,.2);border-radius:12px;background:var(--panel);padding:6px 0}
.toc-panel summary{cursor:pointer;padding:10px 14px;font-weight:700}
.toc-panel nav{padding:0 14px 12px}
.toc-panel a{display:block;font-size:13px;color:var(--ink-soft);padding:4px 0}
.toc-panel a:hover{color:var(--brand)}

/* 表格（覆盖全部正文 table，含 Markdown 裸 table） */
.content-main table,.page-main table,table.data{border-collapse:collapse;width:100%;margin:14px 0;
  border:1px solid var(--line);font-size:14px}
.content-main table th,.content-main table td,.page-main table th,.page-main table td,table.data th,table.data td{
  border:1px solid var(--line);padding:9px 12px;text-align:left;color:var(--ink)}
.content-main table th,.page-main table th,table.data th{background:var(--brand-2);color:#fff}
.content-main table tr:nth-child(even) td,table.data tr:nth-child(even) td{background:rgba(255,255,255,.04)}

/* 卡片网格（首页/列表） */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid rgba(39,198,255,.18);
  border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-4px);border-color:var(--brand)}
.card h3{margin:.2em 0 .4em;font-size:18px}
.card p{color:var(--ink-soft);font-size:14px;margin:.4em 0}
.card .tag-text{display:inline-block;background:rgba(39,198,255,.12);color:var(--brand);
  border-radius:999px;padding:2px 10px;font-size:12px;margin:2px 4px 2px 0}

/* Hero */
.hero{position:relative;overflow:hidden;padding:72px 0 56px;
  background:radial-gradient(1000px 400px at 70% -10%,rgba(124,92,255,.25),transparent),
             radial-gradient(800px 360px at 10% 0%,rgba(39,198,255,.22),transparent)}
.hero h1{font-size:42px;line-height:1.2;margin:0 0 .3em;
  background:linear-gradient(90deg,#fff,var(--brand));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:17px;color:var(--ink-soft);max-width:680px}
.hero .cta{display:inline-block;margin-top:18px;background:linear-gradient(90deg,var(--brand),var(--brand-2));
  color:#04121f;font-weight:700;padding:12px 22px;border-radius:999px}
.section{padding:48px 0}
.section h2{font-size:26px;margin:0 0 .6em}
.section .sub{color:var(--ink-soft);margin-bottom:22px}
.kw-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.kw-cloud span{background:rgba(39,198,255,.1);border:1px solid rgba(39,198,255,.25);
  color:var(--brand);border-radius:999px;padding:6px 14px;font-size:14px}

/* 悬浮胶囊（图标+文字，右侧竖排，宽度随内容自适应） */
.float-side{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;
  display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.float-btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;
  border:none;cursor:pointer;white-space:nowrap;border-radius:999px;
  color:#04121f;font-size:15px;font-weight:700;line-height:1;
  background:linear-gradient(135deg,var(--brand),var(--brand-3));box-shadow:0 8px 22px rgba(39,198,255,.35)}
.float-btn .ico{font-size:17px;line-height:1}
.float-btn:hover{text-decoration:none;filter:brightness(1.1);transform:translateX(-2px)}
.float-btn:active{transform:translateX(0)}
.qr-modal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;
  background:rgba(3,7,16,.7)}
.qr-modal[hidden]{display:none}
.qr-modal__box{position:relative;background:#fff;border-radius:12px;padding:6px}
.qr-modal__close{position:absolute;right:-12px;top:-12px;width:34px;height:34px;border-radius:50%;
  border:none;background:#04121f;color:#fff;font-size:18px;cursor:pointer}
.qr-card{width:300px;height:500px;box-sizing:border-box;display:flex;flex-direction:column;gap:14px;padding:26px 22px;
  background:linear-gradient(160deg,#0a2438,#04121f 72%);color:#e8f4ff;border-radius:12px;text-align:left}
.qr-card__brand{display:flex;align-items:center;gap:9px;font-weight:600;font-size:15px;color:#fff;line-height:1.3}
.qr-card__brand img{border-radius:6px;flex:none}
.qr-card__role{font-size:12px;color:#7fd4ff}
.qr-card__body{display:flex;flex-direction:column;gap:11px;font-size:13px}
.qr-card__line{margin:0;line-height:1.55}
.qr-card__k{display:inline-block;min-width:38px;color:#7fd4ff;margin-right:6px}
.qr-card__line a{color:#fff;text-decoration:none;border-bottom:1px solid rgba(127,212,255,.4)}
.qr-card__foot{margin-top:auto;font-size:11px;color:rgba(232,244,255,.55);line-height:1.6}

/* 页脚 */
.site-footer{border-top:1px solid rgba(39,198,255,.16);margin-top:48px;padding:28px 0;color:var(--ink-soft);font-size:13px}
.site-footer a{color:var(--ink-soft)}

/* 列表页侧栏（左列 240px） */
.list-layout .layout-grid{grid-template-columns:240px minmax(0,1fr)}
.cat-side{position:sticky;top:calc(var(--header-h) + 16px)}
.cat-panel{border:1px solid rgba(39,198,255,.2);border-radius:12px;background:var(--panel);padding:8px 0}
.cat-panel summary{cursor:pointer;padding:12px 16px;font-weight:700}
.category-list{list-style:none;margin:6px 0;padding:0 16px}
.category-list li{margin:6px 0}
.category-list a{color:var(--ink-soft)}
.category-list a:hover,.category-list a.active{color:var(--brand)}
.cat-content h1{font-size:28px;margin:.2em 0 .4em}