/* ── Reset ── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:#333;background:#f8f9fa;line-height:1.7
}
a{text-decoration:none;color:#1677FF}
a:hover{text-decoration:underline}

/* ── Layout ── */
.wrapper{display:flex;max-width:1280px;margin:0 auto;padding:0 20px}
.main{flex:1;min-width:0;padding:32px 0 80px}

/* ── Header ── */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,0.95);backdrop-filter:blur(8px);
  border-bottom:1px solid #e8e8e8
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  max-width:1280px;margin:0 auto;padding:0 20px;height:60px
}
.logo{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:#1677FF}
.logo-icon{
  width:28px;height:28px;background:#1677FF;border-radius:4px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;font-weight:700
}
.header-nav{display:flex;align-items:center;gap:24px}
.header-nav a{font-size:14px;color:#666}
.header-nav a:hover{color:#1677FF;text-decoration:none}

/* ── 文档侧栏（与 /docs/ 一致）── */
.sidebar {
    width: 240px; flex-shrink: 0; box-sizing: border-box;
    position: sticky; top: 64px; height: calc(100vh - 64px);
    overflow-y: auto; padding: 28px 16px 32px 0;
    border-right: 1px solid #e8e8e8; margin-right: 34px;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: #ddd; border-radius: 2px; }
.sidebar h3 {
    font-size: 11.5px; font-weight: 600; color: #98a2b3;
    letter-spacing: .08em; margin: 20px 0 4px; padding: 14px 12px 0;
    border-top: 1px solid #f0f1f3;
}
.sidebar h3:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.sidebar a {
    display: block; padding: 6px 12px 6px 14px; font-size: 13.5px; color: #454d59;
    border-left: 2px solid transparent; border-radius: 0 4px 4px 0;
    transition: color .15s, background .15s, border-color .15s;
    line-height: 1.5;
}
.sidebar a.parent { font-weight: 600; color: #2f3540; }
.sidebar a:hover { border-left-color: #1677FF; color: #1677FF; background: #f5f8ff; }
.sidebar a.active { border-left-color: #1677FF; color: #1677FF; font-weight: 500; background: #f5f8ff; }
.sidebar a.sub { padding-left: 34px; font-size: 12.8px; color: #6b7280; }

/* ── Main Content ── */
.main h1{font-size:36px;font-weight:700;color:#1a1a1a;margin-bottom:8px;margin-top:0}
.main h1 .tag{
  display:inline-block;padding:2px 10px;background:rgba(22,119,255,0.08);
  color:#1677FF;border-radius:4px;font-size:14px;font-weight:400;margin-left:8px
}
.main .lead{font-size:16px;color:#666;margin-bottom:40px}
.main h2{
  font-size:24px;font-weight:600;color:#1a1a1a;
  margin-top:56px;margin-bottom:16px;padding-bottom:8px;
  border-bottom:1px solid #e8e8e8
}
.main h3{font-size:18px;font-weight:600;color:#1a1a1a;margin-top:32px;margin-bottom:12px}
.main h4{font-size:15px;font-weight:600;color:#333;margin-top:24px;margin-bottom:8px}
.main p,.main li{font-size:15px;color:#444;line-height:1.8}
.main p{margin-bottom:16px}
.main ul,.main ol{padding-left:24px;margin-bottom:16px}
.main li{margin-bottom:4px}
.main strong{color:#1a1a1a}
.main code{
  background:#f0f0f0;padding:2px 6px;border-radius:3px;
  font-size:14px;color:#c7254e;font-family:Consolas,monospace
}
.main pre{
  background:#1e1e1e;color:#d4d4d4;
  padding:16px;border-radius:6px;overflow-x:auto;
  font-size:14px;line-height:1.6;margin-bottom:20px
}
.main pre code{background:transparent;padding:0;color:inherit;font-size:14px}

/* ── Tables ── */
.main table{
  width:100%;border-collapse:collapse;margin-bottom:20px;
  font-size:14px
}
.main th,.main td{
  padding:10px 14px;border:1px solid #e0e0e0;text-align:left
}
.main th{background:#f5f7fa;font-weight:600;color:#333}
.main td{color:#555}
.main tr:nth-child(even) td{background:#fafafa}

/* ── Note Box ── */
.note{
  background:#f0f7ff;border-left:4px solid #1677FF;
  padding:12px 16px;border-radius:0 4px 4px 0;margin-bottom:20px
}
.note p{margin-bottom:0;font-size:14px;color:#555}

/* ── Footer ── */
.footer{
  text-align:center;padding:32px 0;font-size:13px;color:#999;
  border-top:1px solid #e8e8e8;margin-top:60px
}

/* ── Responsive ── */
@media(max-width:900px){
  .sidebar{display:none}
  .wrapper{display:block;padding:0 16px}
}


/* ── 快速入口卡片 ── */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0 8px}
.quick-card{display:block;background:#fff;border:1px solid #e8e8e8;border-radius:10px;padding:18px;transition:border-color .15s,box-shadow .15s}
.quick-card:hover{border-color:#1677FF;box-shadow:0 3px 14px rgba(22,119,255,.10);text-decoration:none}
.quick-card b{display:block;font-size:15px;color:#1a1a1a;font-weight:600;margin-bottom:5px}
.quick-card span{display:block;font-size:13px;color:#888;line-height:1.6}
@media(max-width:900px){.quick-grid{grid-template-columns:1fr}}

/* ── 上一篇 / 下一篇 ── */
.prevnext{
  display:flex;gap:16px;margin-top:56px;
}
.prevnext a{
  flex:1;display:block;padding:14px 18px;
  border:1px solid #e8e8e8;border-radius:8px;background:#fff;
  transition:border-color .15s, box-shadow .15s;
}
.prevnext a:hover{border-color:#1677FF;box-shadow:0 2px 10px rgba(22,119,255,.08);text-decoration:none}
.prevnext a span{display:block;font-size:12px;color:#999;margin-bottom:3px}
.prevnext a b{font-size:14px;color:#1677FF;font-weight:600}
.pn-next{text-align:right}
.pn-next span{color:#999}
.pn-empty{flex:1}