:root { color-scheme: light; --ink: #182235; --muted: #617087; --line: #dfe6ef; --brand: #2158ce; --soft: #f5f8fc; }
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: #fff; font: 16px/1.8 system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif; overflow-wrap: anywhere; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid #82a8ff; outline-offset: 3px; }
header { position: sticky; top: 0; z-index: 10; display: flex; justify-content: space-between; align-items: center; gap: 20px; height: 72px; padding: 0 32px; border-bottom: 1px solid var(--line); background: #fff; }
header nav { display: flex; gap: 24px; font-size: 14px; }
.brand { color: var(--ink); font-size: 24px; font-weight: 750; letter-spacing: -.04em; }
.brand span { margin-left: 12px; padding-left: 12px; border-left: 1px solid var(--line); color: var(--muted); font-size: 16px; font-weight: 500; letter-spacing: 0; }
.layout { display: grid; grid-template-columns: 230px minmax(0, 820px) 195px; justify-content: center; gap: 40px; max-width: 1500px; margin: auto; padding: 32px; }
.sidebar, .toc { position: sticky; top: 104px; align-self: start; max-height: calc(100svh - 120px); overflow-y: auto; font-size: 14px; }
.mobile-navigation { display: none; }
.sidebar h2, .toc h2 { margin: 20px 0 8px; font-size: 13px; color: var(--ink); }
.sidebar section:first-child h2, .toc h2 { margin-top: 0; }
.sidebar a, .toc a { display: block; padding: 5px 12px; color: var(--muted); border-radius: 6px; }
.sidebar a[aria-current] { background: #eaf0ff; color: var(--brand); font-weight: 600; }
.toc a { padding: 5px 0; font-size: 12px; }
.toc .depth-3 { padding-left: 12px; }
main { min-width: 0; }
form { padding-bottom: 20px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
form label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 13px; }
.search-input { display: flex; gap: 8px; }
input, button { font: inherit; }
input { min-width: 0; width: 100%; padding: 10px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--soft); color: var(--ink); }
button { flex-shrink: 0; border: 1px solid var(--line); border-radius: 6px; padding: 6px 12px; background: #fff; color: var(--brand); cursor: pointer; }
#search-status { margin: 6px 0 0; font-size: 13px; color: var(--muted); }
#results { margin-bottom: 36px; }
#results a { display: block; padding: 12px 16px; margin-bottom: 10px; border: 1px solid var(--line); border-radius: 8px; }
#results h2 { margin: 0; font-size: 17px; }
#results p { margin: 4px 0; color: var(--muted); font-size: 14px; }
h1, h2, h3, h4 { line-height: 1.4; scroll-margin-top: 96px; letter-spacing: -.02em; }
h1 { margin: 0 0 24px; font-size: clamp(28px, 4vw, 38px); }
article > h2 { margin: 40px 0 16px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 24px; }
h3 { margin-top: 28px; font-size: 19px; }
p, ul, ol { margin: 16px 0; }
li { margin: 5px 0; }
article img { display: block; max-width: 100%; height: auto; margin: 24px 0; border: 1px solid var(--line); border-radius: 10px; }
article table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
th, td { padding: 10px 14px; border: 1px solid var(--line); text-align: left; min-width: 100px; }
th { background: var(--soft); }
code, pre { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .88em; }
:not(pre) > code { padding: 2px 5px; border-radius: 4px; background: #edf2f8; }
.code { margin: 18px 0; overflow: hidden; border: 1px solid var(--line); border-radius: 9px; }
.code-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 7px 14px; background: var(--soft); font-size: 12px; }
.code-bar button { font-size: 12px; }
pre { margin: 0; padding: 18px; overflow-x: auto; line-height: 1.7; background: #172033; color: #e5edff; overflow-wrap: normal; }
pre code { font-size: inherit; }
.code-group { margin: 20px 0; }
.code-group details { padding: 10px 0; border-top: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; }
.code-group .code { margin: 10px 0 0; }
blockquote { margin: 20px 0; padding: 2px 18px; border-left: 3px solid var(--brand); background: var(--soft); color: var(--muted); }
.pagination { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
.pagination a { padding: 18px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; }
.pagination a:last-child { text-align: right; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.hero { margin: 16px 0 36px; padding: 32px; border-radius: 16px; background: linear-gradient(135deg, #eef4ff, #f7faff); }
.hero h1 { font-size: clamp(30px, 4vw, 44px); }
.hero p { color: var(--muted); }
.eyebrow { font-size: 11px; letter-spacing: .14em; font-weight: 700; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.button { display: inline-block; border-radius: 7px; padding: 9px 16px; background: var(--brand); color: white; font-size: 14px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cards section { padding: 18px; border: 1px solid var(--line); border-radius: 10px; font-size: 14px; }
.cards h2 { font-size: 17px; margin: 0; }
.cards p { color: var(--muted); }
.home-catalog { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
.home-catalog ul { padding-left: 20px; font-size: 14px; }
.skip { position: fixed; top: -100px; z-index: 20; padding: 12px; background: white; }
.skip:focus { top: 0; }
@media (max-width: 1200px) { .layout { grid-template-columns: 210px minmax(0, 820px); gap: 28px; } .toc { display: none; } }
@media (max-width: 760px) { header { padding: 0 16px; height: 64px; } header nav { gap: 12px; font-size: 12px; } .brand { font-size: 20px; } .brand span { margin-left: 6px; padding-left: 6px; font-size: 14px; } .layout { display: block; padding: 20px 16px; } .sidebar { position: static; max-height: none; margin-bottom: 24px; padding: 12px; border: 1px solid var(--line); border-radius: 8px; } .sidebar .desktop-navigation { display: none; } .sidebar .mobile-navigation { display: block; } .sidebar details[open] nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; } .sidebar section:first-child h2 { margin-top: 20px; } .cards { grid-template-columns: 1fr; } .hero { padding: 24px; } }