:root {
  --bg: #0b0f14;
  --panel: #111821;
  --panel-2: #16202b;
  --line: #223040;
  --text: #e6edf3;
  --muted: #94a3b8;
  --accent: #4fd1c5;
  --accent-2: #60a5fa;
  --warn: #fbbf24;
  --code: #0a0e13;
  --radius: 12px;
  --sidebar: 280px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 80% -10%, #16303a 0%, transparent 60%), var(--bg);
  color: var(--text);
  font: 15px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, kbd { font-family: "SFMono-Regular", ui-monospace, Consolas, "Liberation Mono", monospace; }
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar);
  flex: 0 0 var(--sidebar);
  height: 100vh;
  position: sticky;
  top: 0;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: rgba(13, 19, 26, .92);
  backdrop-filter: blur(10px);
  padding: 22px 16px 16px;
}
.brand { display: flex; align-items: center; gap: 11px; padding: 0 8px 20px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04121a; font-weight: 800; font-size: 19px;
}
.brand strong { display: block; letter-spacing: .2px; }
.brand small { color: var(--muted); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.search-wrap { position: relative; margin: 0 4px 18px; }
.search-wrap input {
  width: 100%; padding: 10px 34px 10px 12px;
  border-radius: 9px; border: 1px solid var(--line);
  background: var(--panel); color: var(--text); outline: none;
}
.search-wrap input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79, 209, 197, .12); }
.search-wrap kbd {
  position: absolute; right: 9px; top: 8px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; font-size: 11px;
}
nav a {
  display: block; color: var(--muted); padding: 7px 10px; border-radius: 7px;
  font-size: 13.5px; line-height: 1.35;
}
nav a:hover { background: var(--panel); color: var(--text); text-decoration: none; }
nav a.active { background: rgba(79, 209, 197, .1); color: var(--accent); }
nav .nav-group { margin: 16px 8px 6px; color: #64748b; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
nav .method { display: inline-block; width: 38px; font-size: 9px; font-weight: 700; letter-spacing: .03em; color: var(--accent-2); }
.sidebar-foot { display: flex; gap: 14px; padding: 22px 10px 4px; border-top: 1px solid var(--line); margin-top: 20px; font-size: 12.5px; }
.main { flex: 1; min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; gap: 12px;
  padding: 12px 34px; border-bottom: 1px solid var(--line);
  background: rgba(11, 15, 20, .85); backdrop-filter: blur(10px);
  font-size: 13px; color: var(--muted);
}
.pill { border: 1px solid var(--line); border-radius: 999px; padding: 1px 9px; font-size: 11px; }
.menu { display: none; background: none; border: 1px solid var(--line); color: var(--text); border-radius: 7px; padding: 4px 9px; }
.content { max-width: 940px; margin: 0 auto; padding: 34px 34px 80px; }
.hero { padding: 18px 0 26px; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.hero .eyebrow { color: var(--accent); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.hero h1 { font-size: 38px; line-height: 1.2; margin: 8px 0 12px; letter-spacing: -.02em; }
.hero p { color: var(--muted); font-size: 16px; max-width: 720px; margin: 0; }
h2 { font-size: 25px; margin: 46px 0 14px; letter-spacing: -.01em; scroll-margin-top: 74px; }
h3 { font-size: 17px; margin: 26px 0 10px; scroll-margin-top: 74px; }
p { color: #c3ceda; }
.muted { color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 18px 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 15px 16px; }
.card strong { display: block; margin-bottom: 5px; }
.card p { margin: 0; font-size: 13.5px; color: var(--muted); }
.concepts { display: grid; gap: 10px; margin: 16px 0; }
.concept { background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 8px; padding: 11px 14px; }
.concept b { color: var(--text); }
.concept span { color: var(--muted); font-size: 13.5px; }
.endpoint { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); margin: 22px 0; overflow: hidden; scroll-margin-top: 74px; }
.endpoint-head { padding: 16px 18px; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, var(--panel-2), var(--panel)); }
.endpoint-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.endpoint-title h3 { margin: 0; font-size: 17px; }
.endpoint-path { margin-top: 8px; color: var(--muted); font-size: 13px; word-break: break-all; }
.method-badge { font-size: 10px; font-weight: 800; letter-spacing: .06em; border-radius: 5px; padding: 3px 7px; }
.method-GET { background: rgba(96, 165, 250, .14); color: #93c5fd; }
.method-POST { background: rgba(79, 209, 197, .14); color: var(--accent); }
.method-DELETE { background: rgba(248, 113, 113, .14); color: #fca5a5; }
.method-PATCH { background: rgba(251, 191, 36, .14); color: var(--warn); }
.endpoint-body { padding: 16px 18px 20px; }
.endpoint-body > p { margin-top: 0; }
.badge { font-size: 10.5px; border: 1px solid rgba(251, 191, 36, .35); color: var(--warn); border-radius: 999px; padding: 1px 8px; }
table { width: 100%; border-collapse: collapse; margin: 12px 0 18px; font-size: 13.5px; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
td code { color: #bae6fd; }
.req { color: #fca5a5; font-size: 10px; margin-left: 5px; }
pre { position: relative; background: var(--code); border: 1px solid var(--line); border-radius: 9px; padding: 15px 16px; overflow-x: auto; font-size: 12.8px; line-height: 1.65; }
pre code { color: #d6e2ee; }
.copy { position: absolute; top: 8px; right: 8px; border: 1px solid var(--line); background: var(--panel-2); color: var(--muted); border-radius: 6px; padding: 3px 8px; font-size: 11px; cursor: pointer; }
.copy:hover { color: var(--accent); border-color: var(--accent); }
.guide { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin: 18px 0; }
.guide h3 { margin-top: 0; }
.callout { border-left: 3px solid var(--warn); background: rgba(251, 191, 36, .07); padding: 12px 15px; border-radius: 8px; margin: 16px 0; color: #e8dcc0; }
.callout.info { border-color: var(--accent-2); background: rgba(96, 165, 250, .07); color: #d7e5f7; }
.foot { max-width: 940px; margin: 0 auto; padding: 20px 34px 50px; color: #64748b; font-size: 12px; border-top: 1px solid var(--line); }
.hidden { display: none !important; }
nav .nav-group.toggle { display: flex; align-items: center; justify-content: space-between; cursor: pointer; user-select: none; margin-top: 18px; }
nav .nav-group.toggle:hover { color: var(--text); }
nav .nav-group .caret { font-size: 9px; opacity: .7; }
nav .nav-items.collapsed { display: none; }
nav a.sub { padding-left: 16px; }
.status-badge { display: inline-block; font-size: 11px; font-weight: 700; border-radius: 999px; padding: 1px 9px; white-space: nowrap; }
.status-badge.ok { background: rgba(74, 222, 128, .12); color: #4ade80; border: 1px solid rgba(74, 222, 128, .3); }
.status-badge.pending { background: rgba(251, 191, 36, .12); color: var(--warn); border: 1px solid rgba(251, 191, 36, .3); }
.search-hit { outline: 1px solid rgba(79, 209, 197, .4); }
@media (max-width: 900px) {
  .sidebar { position: fixed; z-index: 20; transform: translateX(-100%); transition: transform .18s ease; }
  .sidebar.open { transform: none; }
  .menu { display: inline-block; }
  .content { padding: 24px 18px 60px; }
  .topbar { padding: 10px 18px; }
  .hero h1 { font-size: 30px; }
}

.breadcrumb { color: var(--muted); font-size: 12.5px; margin-bottom: 8px; }
.section { margin: 26px 0; }
.section-title { font-size: 17px; font-weight: 700; margin: 0 0 8px; }
.section-desc { color: var(--muted); font-size: 13.5px; margin-bottom: 10px; }
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; margin: 12px 0; }
.info-card { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.info-label { color: var(--muted); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 4px; }
.info-value { font-size: 14px; word-break: break-all; }
.info-value .primary { color: var(--accent); font-weight: 700; }
.sub-text { color: var(--muted); font-size: 12px; margin-top: 3px; }
.ph { color: var(--warn); font-family: "SFMono-Regular", ui-monospace, Consolas, monospace; }
.region-info { border: 1px dashed var(--line); border-radius: 10px; padding: 12px 14px; margin: 12px 0; }
.region-title { font-weight: 600; margin-bottom: 6px; }
.sublist { list-style: none; padding: 0; margin: 0; }
.sublist li { padding: 3px 0; color: #c3ceda; font-size: 13.5px; }
.region-tag { display: inline-block; min-width: 44px; text-align: center; background: rgba(96, 165, 250, .12); color: #93c5fd; border-radius: 5px; padding: 0 7px; margin-right: 8px; font-size: 11.5px; }
.example-group { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin: 12px 0; background: rgba(22, 32, 43, .5); }
.group-title { margin: 0 0 8px; font-size: 14.5px; color: var(--accent); }
.code-block { margin: 10px 0; }
.code-title { color: var(--muted); font-size: 12px; margin-bottom: 4px; }
.list { list-style: none; padding: 0; margin: 10px 0; }
.list li { padding: 5px 0; color: #c3ceda; font-size: 13.5px; }
.emoji { margin-right: 6px; }
.inline-code { background: rgba(148, 163, 184, .14); border: 1px solid var(--line); border-radius: 4px; padding: 0 5px; font-size: .92em; color: #bae6fd; }
.doc-guide { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); padding: 20px 22px; margin: 24px 0; scroll-margin-top: 74px; }
.doc-guide h3 { margin-top: 0; }
.guide-intro { color: var(--muted); margin-top: 0; }
.endpoint-body h4 { font-size: 12.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin: 18px 0 6px; }
.steps { margin: 12px 0; padding-left: 20px; }
.steps li { margin: 6px 0; color: #c3ceda; }
.section-title .anchor-mark { color: #475569; font-size: 12px; margin-left: 6px; }
@media (max-width: 900px) {
  .doc-guide { padding: 16px 14px; }
}