:root{
  --bg:#ffffff;
  --bg-soft:#fafafa;
  --fg:#0f172a;
  --fg-2:#334155;
  --muted:#64748b;
  --dim:#94a3b8;
  --line:#e9e7ef;
  --line-2:#dcd9e6;
  --brand:#7c3aed;
  --brand-2:#a855f7;
  --brand-soft:#f6f3ff;
  --ok:#0f9d58;
  --warn:#b45309;
  --warn-bg:#fffaf0;
  --err:#d92d20;
  --err-bg:#fff5f4;
  --info-bg:#f4f7ff;
  --info:#2f5bd7;
  --radius:12px;
  --shadow:0 1px 2px rgba(16,24,40,.04);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
code,kbd,pre{font-family:var(--mono)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;border-radius:8px;z-index:99}

/* ---------- 顶栏 ---------- */
.topbar{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.topbar-inner{max-width:1440px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;gap:20px}
.brand-side{display:flex;align-items:center;gap:10px;min-width:0}
.brand{display:flex;align-items:center;gap:9px;color:var(--fg);font-weight:650;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 2px 8px rgba(124,58,237,.28)}
.brand-mark svg{width:17px;height:17px;fill:#fff}
.brand-text{font-size:15.5px;letter-spacing:.2px}
.brand-sub{color:var(--muted);font-weight:500;margin-left:6px}
.ver{font-size:11px;color:var(--brand);background:var(--brand-soft);border:1px solid #e9ddff;
  padding:1px 7px;border-radius:20px;font-weight:600}
.topnav{display:flex;gap:4px;margin:0 auto}
.topnav a{color:var(--fg-2);font-size:14px;padding:7px 12px;border-radius:8px;text-decoration:none}
.topnav a:hover{background:var(--bg-soft);text-decoration:none}
.topnav a.on{color:var(--brand);background:var(--brand-soft);font-weight:550}
.action-side{display:flex;align-items:center;gap:10px}
.search-btn{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line-2);
  color:var(--muted);font-size:13px;padding:7px 10px;border-radius:9px;cursor:pointer;font-family:inherit}
.search-btn:hover{border-color:#cfc7e6;color:var(--fg-2)}
.search-btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.search-btn kbd{font-size:11px;background:var(--bg-soft);border:1px solid var(--line);border-radius:5px;padding:0 5px;color:var(--dim)}
.cta{display:inline-flex;align-items:center;gap:6px;background:var(--brand);color:#fff;font-size:13.5px;
  padding:8px 13px;border-radius:9px;font-weight:550;box-shadow:0 2px 10px rgba(124,58,237,.25)}
.cta:hover{background:#6d28d9;text-decoration:none}
.cta svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.icon-btn{display:none;background:#fff;border:1px solid var(--line-2);border-radius:9px;padding:7px;cursor:pointer}
.icon-btn svg{width:17px;height:17px;fill:none;stroke:var(--fg-2);stroke-width:1.9;stroke-linecap:round}

/* ---------- 布局 ---------- */
.layout{max-width:1440px;margin:0 auto;padding:28px 24px 60px;display:grid;
  grid-template-columns:236px minmax(0,1fr) 208px;gap:36px;align-items:start}
.sidebar{position:sticky;top:84px;max-height:calc(100vh - 110px);overflow:auto;padding-right:6px}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:#e4e1ee;border-radius:3px}
.nav-group{margin-bottom:22px}
.nav-group h4{margin:0 0 7px;padding:0 10px;font-size:11px;font-weight:650;letter-spacing:.08em;
  text-transform:uppercase;color:var(--dim)}
.nav-group a{display:block;padding:6px 10px;border-radius:8px;color:var(--fg-2);font-size:13.5px;
  text-decoration:none;border-left:2px solid transparent}
.nav-group a:hover{background:var(--bg-soft);color:var(--fg);text-decoration:none}
.nav-group a.on{background:var(--brand-soft);color:var(--brand);font-weight:600;border-left-color:var(--brand)}
.side-foot{margin-top:10px;padding:10px;border-top:1px solid var(--line);font-size:12px;color:var(--dim);
  display:flex;gap:7px;align-items:center}
.side-foot a{color:var(--muted)}

.content{min-width:0;max-width:780px}
.toc{position:sticky;top:84px;font-size:12.5px;max-height:calc(100vh - 110px);overflow:auto}
.toc-title{font-size:11px;font-weight:650;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);margin-bottom:10px}
.toc ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.toc li{margin:0}
.toc a{display:block;padding:5px 0 5px 12px;margin-left:-1px;color:var(--muted);border-left:2px solid transparent;text-decoration:none}
.toc a:hover{color:var(--fg)}
.toc a.on{color:var(--brand);border-left-color:var(--brand);font-weight:550}

/* ---------- 正文 ---------- */
.crumb{font-size:12.5px;color:var(--dim);margin-bottom:10px}
.crumb span{color:var(--fg-2)}
h1{font-size:30px;line-height:1.25;letter-spacing:-.02em;margin:0 0 10px;font-weight:700}
.lede{font-size:15.5px;color:var(--muted);margin:0 0 26px;line-height:1.7}
h2{font-size:19px;margin:38px 0 12px;padding-top:18px;border-top:1px solid var(--line);font-weight:650;letter-spacing:-.01em}
h2:first-of-type{border-top:0;padding-top:0;margin-top:8px}
h3{font-size:15.5px;margin:24px 0 8px;font-weight:650}
p,li{color:var(--fg-2)}
p{margin:10px 0}
ul,ol{padding-left:22px;margin:10px 0}
li{margin:5px 0}
strong{color:var(--fg);font-weight:650}
hr{border:0;border-top:1px solid var(--line);margin:28px 0}

code{background:#f4f2f9;color:#7c3aed;padding:1.5px 5px;border-radius:5px;font-size:12.8px;word-break:break-word}
a code{color:inherit}

/* 代码块 */
.codeblock{margin:14px 0;border-radius:12px;overflow:hidden;border:1px solid #1c1930;background:#14121f}
.codeblock header{display:flex;align-items:center;justify-content:space-between;
  padding:8px 12px 8px 14px;background:#1b1830;border-bottom:1px solid #26213c}
.codeblock .lang{font-size:11px;color:#8b86a8;letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.copy{display:inline-flex;align-items:center;gap:5px;background:transparent;border:1px solid #322c4c;
  color:#a9a3c4;font-size:11.5px;padding:3px 8px;border-radius:6px;cursor:pointer;font-family:inherit}
.copy:hover{border-color:#4b4270;color:#d8d3ea}
.copy.done{color:#6ee7a8;border-color:#2f5e42}
.codeblock pre{margin:0;padding:14px 16px;overflow:auto;font-size:12.8px;line-height:1.75;color:#e6e3f0}
.codeblock pre code{background:none;color:inherit;padding:0;font-size:inherit}

/* 表格 */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:14px 0}
table{width:100%;border-collapse:collapse;font-size:13.4px;min-width:520px}
th{text-align:left;background:var(--bg-soft);color:var(--muted);font-weight:600;font-size:12.5px;
  padding:9px 13px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:9px 13px;border-bottom:1px solid #f3f1f8;color:var(--fg-2);vertical-align:top}
tr:last-child td{border-bottom:0}
td code{font-size:12.4px}

/* 提示块 */
.callout{display:flex;gap:11px;padding:13px 15px;border-radius:11px;margin:16px 0;font-size:13.8px;line-height:1.7;
  background:var(--info-bg);border:1px solid #e0e8ff;color:#33427a}
.callout .ico{flex:none;width:17px;height:17px;margin-top:2px}
.callout .ico svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.callout.warn{background:var(--warn-bg);border-color:#f6e3c2;color:#7a5313}
.callout.err{background:var(--err-bg);border-color:#f8d7d2;color:#8a2a20}
.callout.ok{background:#f2fbf5;border-color:#cfeeda;color:#166534}
.callout a{color:inherit;text-decoration:underline}

/* 接口卡片 */
.endpoint{display:flex;align-items:center;gap:10px;margin:16px 0 6px;padding:11px 14px;
  border:1px solid var(--line);border-radius:11px;background:var(--bg-soft)}
.method{font-size:11.5px;font-weight:700;letter-spacing:.04em;padding:3px 8px;border-radius:6px;color:#fff;flex:none}
.method.get{background:#2563eb}
.method.post{background:#0f9d58}
.method.del{background:#dc2626}
.endpoint code{background:none;color:var(--fg);font-size:13.4px;font-weight:550;padding:0}
.endpoint .desc{margin-left:auto;font-size:12.5px;color:var(--muted)}

/* 首页卡片 */
.hero{padding:6px 0 22px}
.hero h1{font-size:38px;letter-spacing:-.025em}
.hero .lede{font-size:16.5px;max-width:640px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 16px;border-radius:10px;font-size:14px;
  font-weight:550;text-decoration:none;border:1px solid transparent}
.btn.primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px rgba(124,58,237,.25)}
.btn.primary:hover{background:#6d28d9;text-decoration:none}
.btn.ghost{background:#fff;border-color:var(--line-2);color:var(--fg-2)}
.btn.ghost:hover{border-color:#cbc3e2;text-decoration:none}
.btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin:14px 0 4px}
.card{display:block;padding:16px;border:1px solid var(--line);border-radius:13px;background:#fff;
  color:inherit;text-decoration:none;transition:border-color .15s,box-shadow .15s,transform .15s}
.card:hover{border-color:#d8cdf5;box-shadow:0 6px 20px rgba(124,58,237,.08);text-decoration:none;transform:translateY(-1px)}
.card .cic{width:30px;height:30px;border-radius:9px;background:var(--brand-soft);display:grid;place-items:center;margin-bottom:10px}
.card .cic svg{width:16px;height:16px;fill:none;stroke:var(--brand);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin:0 0 4px;font-size:14.5px;font-weight:650}
.card p{margin:0;font-size:12.8px;color:var(--muted);line-height:1.6}

/* 上下页 */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:44px;padding-top:22px;border-top:1px solid var(--line)}
.pager a{display:block;padding:13px 15px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:inherit}
.pager a:hover{border-color:#d8cdf5;text-decoration:none}
.pager .k{font-size:11.5px;color:var(--dim);display:block;margin-bottom:3px}
.pager .t{font-size:13.8px;font-weight:600;color:var(--fg)}
.pager .next{text-align:right}
.pager .empty{visibility:hidden}

/* 搜索 */
.overlay{position:fixed;inset:0;background:rgba(15,23,42,.42);backdrop-filter:blur(3px);z-index:60;display:none}
.overlay.show{display:block}
.search-modal{position:fixed;inset:0;z-index:61;display:flex;justify-content:center;padding-top:12vh}
.search-box{width:min(620px,92vw);height:fit-content;max-height:70vh;background:#fff;border-radius:14px;
  box-shadow:0 24px 70px rgba(15,23,42,.28);overflow:hidden;border:1px solid var(--line)}
.search-input-wrap{display:flex;align-items:center;gap:10px;padding:13px 15px;border-bottom:1px solid var(--line)}
.search-input-wrap svg{width:17px;height:17px;fill:none;stroke:var(--muted);stroke-width:1.9;stroke-linecap:round}
.search-input-wrap input{flex:1;border:0;outline:none;font-size:15px;font-family:inherit;color:var(--fg);background:none}
.search-input-wrap kbd{font-size:11px;color:var(--dim);border:1px solid var(--line);border-radius:5px;padding:1px 5px}
.search-results{list-style:none;margin:0;padding:8px;max-height:56vh;overflow:auto}
.search-results li a{display:block;padding:9px 11px;border-radius:9px;color:var(--fg-2);text-decoration:none;font-size:13.5px}
.search-results li a:hover,.search-results li a.sel{background:var(--brand-soft);color:var(--brand);text-decoration:none}
.search-results .g{font-size:11px;color:var(--dim);margin-left:8px}
.search-results .none{padding:18px;text-align:center;color:var(--dim);font-size:13px}

/* 页脚 */
.page-foot{max-width:1440px;margin:0 auto;padding:22px 24px 40px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--dim)}
.foot-links{display:flex;gap:16px}
.foot-links a{color:var(--muted)}

/* ---------- 响应式 ---------- */
@media(max-width:1180px){
  .layout{grid-template-columns:220px minmax(0,1fr);gap:28px}
  .toc{display:none}
}
@media(max-width:900px){
  .topnav{display:none}
  .search-btn span{display:none}
  .icon-btn{display:inline-flex}
  .layout{grid-template-columns:minmax(0,1fr);gap:0;padding:18px 16px 40px}
  .sidebar{position:fixed;top:0;left:0;bottom:0;width:280px;max-height:none;background:#fff;z-index:55;
    padding:18px 14px;transform:translateX(-102%);transition:transform .22s ease;box-shadow:0 0 40px rgba(15,23,42,.18)}
  .sidebar.open{transform:none}
  .content{max-width:none}
  .hero h1{font-size:29px}
  h1{font-size:24px}
  .cta{display:none}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left}
}
@media(max-width:640px){
  .brand-sub{display:none}
  .search-btn kbd{display:none}
  .codeblock pre{font-size:12.2px}
  .cards{grid-template-columns:1fr}
}

/* 顶部阅读进度条 */
#progress{position:fixed;top:0;left:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2));
  z-index:70;width:0;transition:width .1s linear;pointer-events:none}
/* 长代码块内部滚动 */
.codeblock pre{max-height:460px}

/* 修复：display:flex 会覆盖 [hidden] 的默认 display:none */
.search-modal[hidden]{display:none}