:root {
  --vp-c-brand: #3451b2;
  --vp-c-bg: #ffffff;
  --vp-c-bg-soft: #f6f6f7;
  --vp-c-border: #e2e2e3;
  --vp-c-text: #3c3c43;
  --vp-c-text-2: #67676c;
  --vp-nav-height: 56px;
  --vp-sidebar-width: 260px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: #fff; color: var(--vp-c-text);
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
.vp-layout {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: var(--vp-sidebar-width) 1fr;
  grid-template-rows: var(--vp-nav-height) 1fr;
}
.vp-nav {
  grid-column: 1 / -1;
  display: flex; align-items: center; gap: 12px;
  padding: 0 16px; border-bottom: 1px solid var(--vp-c-border);
  background: rgba(255,255,255,.92); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 20;
}
.vp-nav-toggle { display: none; width: 36px; height: 36px; border: 0; background: transparent; flex-direction: column; justify-content: center; gap: 5px; cursor: pointer; }
.vp-nav-toggle span { display: block; height: 2px; width: 18px; background: #213547; margin: 0 auto; }
.vp-nav-brand { display: flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 700; }
.vp-logo { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; color: #fff; font-size: 11px; font-weight: 800;
  background: linear-gradient(135deg, #41d1ff, #bd34fe); }
.vp-title { font-size: 15px; color: #213547; }
.vp-nav-right { margin-left: auto; }
.vp-search { width: min(240px, 42vw); height: 34px; border-radius: 8px; border: 1px solid var(--vp-c-border); padding: 0 10px; background: var(--vp-c-bg-soft); }
.vp-sidebar { border-right: 1px solid var(--vp-c-border); overflow: auto; padding: 12px 10px 28px; }
.vp-group { margin-bottom: 12px; }
.vp-group-title { font-size: 12px; font-weight: 700; color: var(--vp-c-text-2); padding: 8px 10px; }
.vp-side-link { display: block; padding: 7px 12px; border-radius: 8px; color: var(--vp-c-text); text-decoration: none; font-size: 13.5px; }
.vp-side-link:hover { background: var(--vp-c-bg-soft); }
.vp-side-link.active { background: rgba(52,81,178,.1); color: var(--vp-c-brand); font-weight: 650; }
.vp-main { min-width: 0; overflow: auto; }
.vp-doc-wrap { padding: 28px 36px 64px; max-width: 920px; }
.vp-empty { padding: 48px 12px; text-align: center; color: var(--vp-c-text-2); }
.vp-doc { line-height: 1.75; font-size: 15.5px; }
.vp-doc h1 { font-size: 2rem; margin: 0 0 1rem; color: #213547; }
.vp-doc h2 { margin: 2rem 0 .8rem; padding-top: 1rem; border-top: 1px solid var(--vp-c-border); font-size: 1.35rem; }
.vp-doc h3 { margin: 1.4rem 0 .6rem; font-size: 1.1rem; }
.vp-doc a { color: var(--vp-c-brand); font-weight: 600; text-decoration: none; }
.vp-doc a:hover { text-decoration: underline; }
.vp-doc code { background: #f3f4f6; padding: .1em .35em; border-radius: 4px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
.vp-doc pre { background: #1e1e20; color: #e5e7eb; padding: 14px 16px; border-radius: 10px; overflow: auto; }
.vp-doc pre code { background: transparent; color: inherit; padding: 0; }
.vp-doc table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; margin: 1rem 0; font-size: 13.5px; }
.vp-doc th, .vp-doc td { border: 1px solid var(--vp-c-border); padding: 8px 10px; text-align: left; vertical-align: top; }
.vp-doc th { background: var(--vp-c-bg-soft); }
.vp-doc blockquote { margin: 1rem 0; padding: .4rem 0 .4rem 1rem; border-left: 3px solid var(--vp-c-brand); color: var(--vp-c-text-2); background: rgba(52,81,178,.04); }
.vp-pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 36px; }
.vp-page-btn { border: 1px solid var(--vp-c-border); background: #fff; border-radius: 10px; padding: 12px 14px; cursor: pointer; font-weight: 650; color: #213547; text-decoration: none; }
.vp-page-btn:hover { border-color: var(--vp-c-brand); color: var(--vp-c-brand); }
.vp-mask { display: none; }
@media (max-width: 860px) {
  .vp-layout { grid-template-columns: 1fr; }
  .vp-nav-toggle { display: flex; }
  .vp-sidebar {
    position: fixed; z-index: 40; left: 0; top: var(--vp-nav-height); bottom: 0;
    width: min(80vw, 280px); background: #fff; transform: translateX(-105%); transition: transform .22s ease;
    box-shadow: 8px 0 30px rgba(0,0,0,.08);
  }
  .vp-sidebar.open { transform: translateX(0); }
  .vp-mask { display: none; position: fixed; inset: var(--vp-nav-height) 0 0; background: rgba(0,0,0,.35); z-index: 30; }
  .vp-mask.show { display: block; }
  .vp-doc-wrap { padding: 20px 16px 48px; }
}