/* Document layout; official Layui tables/buttons and the shared MPAY palette. */
html { scroll-padding-top: 96px; }
body { margin: 0; color: var(--mpay-text); background: #fff; font: 14px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif; }
a { color: var(--mpay-link); }
a:hover { color: var(--mpay-primary-dark); }
:focus-visible { outline: 2px solid var(--mpay-primary-dark); outline-offset: 4px; }
.api-header { position: sticky; top: 0; z-index: 10; height: 72px; padding: 0 max(28px, calc((100vw - 1360px) / 2)); display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--mpay-border); background: #fff; }
.api-brand { display: flex; align-items: center; gap: 22px; color: var(--mpay-heading); white-space: nowrap; }
.api-brand span { padding-left: 22px; border-left: 1px solid var(--mpay-border); font-size: 15px; }
.api-header nav { display: flex; gap: 26px; white-space: nowrap; }
.api-header nav a { color: var(--mpay-muted); }
.api-layout { display: grid; grid-template-columns: 228px minmax(0,1fr); gap: 48px; max-width: 1280px; margin: auto; padding: 0 32px; }
.api-sidebar { position: sticky; top: 97px; align-self: start; max-height: calc(100vh - 120px); overflow-y: auto; padding: 4px 16px 20px 0; }
.api-outline summary { font-size: 12px; letter-spacing: 1px; color: var(--mpay-muted); padding: 8px 14px 14px; list-style: none; cursor: pointer; }
.api-outline summary::-webkit-details-marker { display: none; }
.api-outline summary span { float: right; }
.api-outline nav a { display: flex; gap: 10px; align-items: baseline; padding: 6px 12px; margin: 2px 0; line-height: 1.7; font-size: 13px; color: var(--mpay-muted); border-radius: 4px; }
.api-outline nav a span { flex-shrink: 0; font: 11px ui-monospace,monospace; color: #87919d; }
.api-outline nav a:hover { background: var(--mpay-surface-muted); }
.api-outline nav a[aria-current] { background: var(--mpay-primary-soft); color: var(--mpay-primary-dark); font-weight: 600; }
.api-sidebar-note { border-top: 1px solid var(--mpay-border); padding: 18px 12px 0; margin-top: 22px; color: var(--mpay-muted); font-size: 12px; }
main { min-width: 0; padding: 38px 0 0; }
.api-eyebrow { font-size: 11px; font-weight: 700; letter-spacing: 2px; color: var(--mpay-primary-dark); margin-bottom: 12px; }
.api-intro h1 { font-size: 32px; font-weight: 650; letter-spacing: -.5px; margin: 0 0 8px; color: var(--mpay-heading); }
.api-intro > p { color: var(--mpay-muted); }
.api-gateway { display: flex; justify-content: space-between; gap: 16px; align-items: center; background: var(--mpay-primary-soft); border: 1px solid #d5efea; border-radius: 8px; padding: 16px 20px; margin: 26px 0 10px; }
.api-gateway div { min-width: 0; }
.api-gateway span { display: block; font-size: 12px; color: var(--mpay-primary-dark); margin-bottom: 2px; }
.api-gateway code { font-size: 16px; word-break: break-all; }
.api-gateway button { flex-shrink: 0; margin: 0; }
.api-intro-note { font-size: 12px; }
.api-content { margin-top: 28px; }
.api-content p { margin: 14px 0; }
.api-source-link { margin-left: 8px; white-space: nowrap; font-size: 12px; color: var(--mpay-muted); }
.api-content h2 { margin: 44px 0 18px; padding-top: 18px; border-top: 1px solid var(--mpay-border); color: var(--mpay-heading); font-size: 23px; font-weight: 600; scroll-margin-top: 20px; }
.api-content h3 { margin: 28px 0 12px; color: var(--mpay-heading); font-size: 17px; font-weight: 600; }
.api-content ul,.api-content ol { padding-left: 25px; margin: 16px 0; }
.api-content ul li { list-style: disc; }
.api-content ol li { list-style: decimal; }
.api-content li { margin: 6px 0; }
.api-content code { font: .92em/1.7 ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace; }
.api-content :not(pre) > code { background: #f1f5f8; color: #31516b; border-radius: 3px; padding: 2px 5px; overflow-wrap: anywhere; }
.api-content blockquote { margin: 20px 0; padding: 2px 18px; border-left: 3px solid var(--mpay-primary); background: var(--mpay-surface-muted); }
.api-example { border: 1px solid var(--mpay-border); border-radius: 7px; margin: 18px 0; overflow: hidden; }
.api-example-bar { background: #f3f6f9; border-bottom: 1px solid var(--mpay-border); padding: 7px 12px 7px 18px; display: flex; align-items: center; justify-content: space-between; color: var(--mpay-muted); font-size: 12px; }
.api-example pre { background: #fafbfd; padding: 18px; margin: 0; overflow-x: auto; color: #294155; tab-size: 4; }
.api-example pre code { font-size: 13px; white-space: pre; }
.api-table-scroll { max-width: 100%; overflow-x: auto; margin: 18px 0; border: 1px solid var(--mpay-border); border-radius: 6px; }
.api-table-scroll .layui-table { margin: 0; border: 0; }
.api-table-scroll th { white-space: nowrap; background: #f6f8fa; color: #485465; font-weight: 600; }
.api-table-scroll th,.api-table-scroll td { border: 0; border-bottom: 1px solid var(--mpay-border); padding: 11px 13px; font-size: 13px; line-height: 1.7; }
.api-table-scroll tr:last-child td { border-bottom: 0; }
.api-table-scroll td:first-child { min-width: 72px; }
.api-table-scroll td:last-child { min-width: 200px; }
.api-footer { border-top: 1px solid var(--mpay-border); margin-top: 40px; padding: 24px 0 36px; display: flex; justify-content: space-between; gap: 20px; color: var(--mpay-muted); font-size: 12px; }
.api-skip { position: fixed; left: 12px; top: -80px; z-index: 20; padding: 10px 18px; background: white; }
.api-skip:focus { top: 8px; }
@media (max-width: 900px) {
    html { scroll-padding-top: 135px; }
    .api-header { height: 62px; padding: 0 18px; }
    .api-brand { gap: 12px; }
    .api-brand img { width: 104px; height: auto; }
    .api-brand span { padding-left: 12px; font-size: 13px; }
    .api-header nav { gap: 14px; font-size: 12px; }
    .api-layout { display: block; padding: 0 20px; }
    .api-sidebar { top: 62px; z-index: 9; max-height: 60vh; padding: 0; margin: 0 -20px; border-bottom: 1px solid var(--mpay-border); background: white; }
    .api-outline summary { padding: 12px 20px; font-size: 13px; }
    .api-outline nav { padding: 0 12px 12px; }
    .api-sidebar-note { display: none; }
    main { padding-top: 28px; }
    .api-intro h1 { font-size: 26px; }
    .api-gateway { padding: 14px; }
    .api-gateway code { font-size: 14px; }
    .api-content h2 { font-size: 21px; }
    .api-table-scroll::before { content: '表格可左右滑动查看'; display: block; position: sticky; left: 0; padding: 7px 12px; color: var(--mpay-muted); font-size: 11px; background: var(--mpay-surface-muted); }
    .api-table-scroll .api-wide-table { min-width: 900px; }
    .api-footer { flex-wrap: wrap; }
}
@media (max-width: 400px) {
    .api-brand span { display: none; }
}
@media print {
    .api-header,.api-sidebar,[data-copy],.api-skip { display: none; }
    .api-layout { display: block; padding: 0; }
    main { padding: 0; }
    .api-table-scroll,.api-example pre { overflow: visible; }
    .api-example pre code { white-space: pre-wrap; overflow-wrap: anywhere; }
}