/* ============================================================
   聚合支付 · 开放平台接口文档
   自包含样式：无外部依赖（字体/图标全部内置或 SVG）
   ============================================================ */

:root {
  --c-primary: #165dff;
  --c-primary-600: #0d47cf;
  --c-primary-50: #eef4ff;
  --c-text: #1f2430;
  --c-text-2: #4b5563;
  --c-text-3: #6b7280;
  --c-text-4: #9aa3b2;
  --c-bg: #ffffff;
  --c-bg-soft: #f6f8fc;
  --c-bg-side: #f8fafd;
  --c-border: #e7eaf0;
  --c-border-2: #f1f3f8;
  --c-code-bg: #161c2d;
  --c-code-text: #e6ebf5;
  --c-ok: #10a37f;
  --c-ok-bg: #e9f8f3;
  --c-warn: #e8833a;
  --c-warn-bg: #fdf3e9;
  --c-danger: #e5484d;
  --radius: 12px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(20, 32, 64, .05);
  --shadow: 0 6px 24px rgba(20, 32, 64, .08);
  --topbar-h: 60px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;
}

html[data-theme="dark"] {
  --c-primary: #4a8bff;
  --c-primary-600: #6ba0ff;
  --c-primary-50: #16243f;
  --c-text: #e8ecf4;
  --c-text-2: #b6bfd0;
  --c-text-3: #8d96a8;
  --c-text-4: #6a7488;
  --c-bg: #0f1420;
  --c-bg-soft: #161c2a;
  --c-bg-side: #131926;
  --c-border: #242c3d;
  --c-border-2: #1c2432;
  --c-code-bg: #0b0f19;
  --c-code-text: #dfe6f2;
  --c-ok-bg: #102b25;
  --c-warn-bg: #2c2114;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow: 0 8px 30px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 18px); }
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font);
  font-size: 14.5px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); font-size: .9em; background: var(--c-bg-soft); border: 1px solid var(--c-border-2); border-radius: 5px; padding: 1px 5px; color: var(--c-text); word-break: break-word; }

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: #cfd7e6; border-radius: 6px; border: 2px solid transparent; background-clip: content-box; }
html[data-theme="dark"] ::-webkit-scrollbar-thumb { background: #2c3548; background-clip: content-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- 顶部进度条 ---------- */
.progress { position: fixed; top: 0; left: 0; height: 2px; width: 0; z-index: 200;
  background: linear-gradient(90deg, var(--c-primary), #57b0ff); transition: width .08s linear; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 120; height: var(--topbar-h);
  background: color-mix(in srgb, var(--c-bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-border);
}
@supports not (backdrop-filter: blur(4px)) { .topbar { background: var(--c-bg); } }
.topbar-inner { max-width: 1500px; margin: 0 auto; height: 100%; padding: 0 20px; display: flex; align-items: center; gap: 12px; }

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex: none; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--c-primary-600), #3f8cff); box-shadow: var(--shadow-sm); }
.brand-mark svg { width: 18px; height: 18px; fill: #fff; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text b { font-size: 15px; color: var(--c-text); letter-spacing: -.01em; }
.brand-text em { font-style: normal; font-size: 11px; color: var(--c-text-4); }
.ver-badge { flex: none; font-size: 11px; font-weight: 700; color: var(--c-primary); background: var(--c-primary-50);
  border-radius: 5px; padding: 2px 6px; letter-spacing: .02em; }

.search-wrap { position: relative; flex: 1 1 auto; max-width: 460px; margin-left: auto; }
.search-wrap .s-ico { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); width: 15px; height: 15px;
  fill: none; stroke: var(--c-text-4); stroke-width: 2; stroke-linecap: round; pointer-events: none; }
#search { width: 100%; height: 36px; padding: 0 46px 0 34px; border: 1px solid var(--c-border); border-radius: 9px;
  background: var(--c-bg-soft); color: var(--c-text); font-size: 13.5px; font-family: inherit; outline: none; }
#search:focus { border-color: var(--c-primary); background: var(--c-bg); box-shadow: 0 0 0 3px var(--c-primary-50); }
#search::-webkit-search-cancel-button { -webkit-appearance: none; }
.s-kbd { position: absolute; right: 9px; top: 50%; transform: translateY(-50%); font-size: 11px; font-family: var(--mono);
  color: var(--c-text-4); border: 1px solid var(--c-border); border-bottom-width: 2px; border-radius: 5px; padding: 0 5px; background: var(--c-bg); }

.search-panel { position: absolute; top: calc(100% + 8px); left: 0; right: 0; max-height: 62vh; overflow-y: auto;
  background: var(--c-bg); border: 1px solid var(--c-border); border-radius: 12px; box-shadow: var(--shadow); padding: 6px; }
.sp-item { display: block; padding: 9px 11px; border-radius: 8px; cursor: pointer; color: var(--c-text); }
.sp-item:hover, .sp-item.on { background: var(--c-primary-50); text-decoration: none; }
.sp-item .sp-t { font-weight: 600; font-size: 13.5px; display: flex; justify-content: space-between; gap: 10px; }
.sp-item .sp-g { font-size: 11px; color: var(--c-text-4); font-weight: 400; }
.sp-item .sp-s { font-size: 12px; color: var(--c-text-3); margin-top: 2px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sp-item mark { background: rgba(22, 93, 255, .16); color: var(--c-primary); border-radius: 3px; padding: 0 1px; }
.sp-empty { padding: 18px; text-align: center; color: var(--c-text-4); font-size: 13px; }

.top-actions { display: flex; align-items: center; gap: 8px; flex: none; }
.icon-btn { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--c-border);
  border-radius: 9px; background: var(--c-bg); cursor: pointer; color: var(--c-text-2); padding: 0; }
.icon-btn:hover { border-color: var(--c-primary); color: var(--c-primary); }
.icon-btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.icon-btn.sm { width: 26px; height: 26px; border: none; background: transparent; }
.btn-home { display: inline-flex; align-items: center; gap: 5px; height: 34px; padding: 0 13px; font-size: 13px;
  border: 1px solid var(--c-border); border-radius: 9px; background: var(--c-bg); color: var(--c-text-2); }
.btn-home:hover { border-color: var(--c-primary); color: var(--c-primary); text-decoration: none; }
.btn-home svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- 布局 ---------- */
.layout { max-width: 1500px; margin: 0 auto; padding: 0 20px; display: grid;
  grid-template-columns: 252px minmax(0, 1fr) 208px; gap: 30px; align-items: start; }

/* ---------- 左侧目录 ---------- */
.sidebar { position: sticky; top: var(--topbar-h); max-height: calc(100vh - var(--topbar-h));
  display: flex; flex-direction: column; padding: 18px 0 0; }
.side-head { display: flex; align-items: center; justify-content: space-between; padding: 0 10px 8px;
  font-size: 11.5px; font-weight: 700; letter-spacing: .06em; color: var(--c-text-4); text-transform: uppercase; }
.side-head .icon-btn { display: none; }
.side-nav { flex: 1; overflow-y: auto; padding-bottom: 12px; margin-right: -6px; padding-right: 6px; }
.sn-group { margin-bottom: 4px; }
.sn-group > em { display: block; font-style: normal; font-size: 11.5px; font-weight: 700; color: var(--c-text-4);
  letter-spacing: .04em; padding: 12px 10px 5px; }
.sn-link { display: flex; align-items: center; gap: 7px; padding: 7px 10px; border-radius: 8px; font-size: 13.5px;
  color: var(--c-text-2); cursor: pointer; border-left: 2px solid transparent; }
.sn-link:hover { background: var(--c-bg-soft); color: var(--c-text); text-decoration: none; }
.sn-link.active { background: var(--c-primary-50); color: var(--c-primary); font-weight: 600; border-left-color: var(--c-primary); }
.sn-link .m { font-size: 9.5px; font-weight: 700; padding: 1px 4px; border-radius: 4px; flex: none; letter-spacing: .02em; }
.sn-link .m.post { color: #1c7a4f; background: #e3f6ec; }
.sn-link .m.get { color: #8a5a00; background: #fdf0d9; }
html[data-theme="dark"] .sn-link .m.post { color: #6fdca9; background: #123227; }
html[data-theme="dark"] .sn-link .m.get { color: #f0c274; background: #33280f; }
.side-foot { border-top: 1px solid var(--c-border-2); padding: 11px 10px 18px; }
.sf-line { font-size: 11.5px; color: var(--c-text-2); line-height: 1.8; }
.sf-line b { color: var(--c-text); font-weight: 600; }
.sf-line.muted { color: var(--c-text-4); }

/* ---------- 正文 ---------- */
.content { min-width: 0; padding: 26px 0 90px; }
.page-hero { padding: 4px 0 22px; border-bottom: 1px solid var(--c-border-2); margin-bottom: 8px; }
.page-hero h1 { font-size: 30px; line-height: 1.3; margin: 0 0 12px; letter-spacing: -.02em; font-weight: 700; }
.hero-desc { color: var(--c-text-2); font-size: 14.5px; margin: 0 0 18px; max-width: 780px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-meta span { font-size: 12px; color: var(--c-text-3); background: var(--c-bg-soft); border: 1px solid var(--c-border-2);
  border-radius: 7px; padding: 4px 10px; }
.hero-meta b { color: var(--c-text); font-weight: 600; margin-right: 4px; }

.doc-sec { padding-top: 12px; }
.doc-sec > h2 { position: relative; font-size: 22px; font-weight: 700; letter-spacing: -.015em; margin: 34px 0 14px;
  padding-bottom: 10px; border-bottom: 1px solid var(--c-border-2); }
.doc-sec h3 { font-size: 16px; font-weight: 650; margin: 26px 0 10px; letter-spacing: -.005em; }
.doc-sec h3.h-params { margin-top: 20px; }
.doc-sec p { margin: 10px 0; color: var(--c-text-2); }
.anchor { margin-left: 8px; color: var(--c-text-4); opacity: 0; font-weight: 400; }
h2:hover .anchor, h3:hover .anchor { opacity: 1; }
.note { font-size: 13px; color: var(--c-text-3); }
.note::before { content: "※ "; color: var(--c-text-4); }

.kv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px; margin: 16px 0; }
.kv { border: 1px solid var(--c-border); border-radius: var(--radius-sm); padding: 11px 13px; background: var(--c-bg-soft); }
.kv span { display: block; font-size: 11.5px; color: var(--c-text-4); margin-bottom: 3px; }
.kv b { font-weight: 600; font-size: 13px; }
.kv code { background: transparent; border: none; padding: 0; }

.steps { margin: 12px 0; padding-left: 22px; }
.steps li { margin: 8px 0; color: var(--c-text-2); }
.steps li::marker { color: var(--c-primary); font-weight: 700; }
.bullets { margin: 12px 0; padding-left: 20px; }
.bullets li { margin: 7px 0; color: var(--c-text-2); }
.bullets li::marker { color: var(--c-text-4); }

.callout { display: flex; gap: 11px; padding: 13px 15px; border-radius: var(--radius-sm); margin: 16px 0;
  background: var(--c-primary-50); border: 1px solid color-mix(in srgb, var(--c-primary) 18%, transparent); font-size: 13.5px; color: var(--c-text-2); }
.callout svg { width: 17px; height: 17px; flex: none; margin-top: 3px; fill: none; stroke: var(--c-primary); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.callout b { color: var(--c-text); }
.callout.warn { background: var(--c-warn-bg); border-color: color-mix(in srgb, var(--c-warn) 22%, transparent); }
.callout.warn svg { stroke: var(--c-warn); }
.callout.ok { background: var(--c-ok-bg); border-color: color-mix(in srgb, var(--c-ok) 22%, transparent); }
.callout.ok svg { stroke: var(--c-ok); }
.callout code { background: var(--c-bg); border-color: transparent; }

/* 接口地址条 */
.api-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 11px 14px; margin: 14px 0;
  background: var(--c-bg-soft); border: 1px solid var(--c-border); border-radius: var(--radius-sm); }
.method { font-size: 11px; font-weight: 800; letter-spacing: .05em; padding: 3px 8px; border-radius: 6px; flex: none; }
.method.post { color: #1c7a4f; background: #e3f6ec; }
.method.get { color: #8a5a00; background: #fdf0d9; }
html[data-theme="dark"] .method.post { color: #6fdca9; background: #123227; }
html[data-theme="dark"] .method.get { color: #f0c274; background: #33280f; }
.api-line .url { font-family: var(--mono); font-size: 13.5px; background: var(--c-bg); border-color: var(--c-border);
  padding: 4px 9px; color: var(--c-text); }
.api-note { font-size: 12px; color: var(--c-text-4); margin-left: auto; }

/* 表格 */
.tbl-wrap { overflow-x: auto; margin: 12px 0 6px; border: 1px solid var(--c-border); border-radius: var(--radius-sm);
  -webkit-overflow-scrolling: touch; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 620px; }
table.tbl thead th { background: var(--c-bg-soft); text-align: left; font-weight: 600; color: var(--c-text-2);
  padding: 10px 13px; border-bottom: 1px solid var(--c-border); white-space: nowrap; font-size: 12.5px; }
table.tbl td { padding: 10px 13px; border-bottom: 1px solid var(--c-border-2); vertical-align: top; color: var(--c-text-2); }
table.tbl tbody tr:last-child td { border-bottom: none; }
table.tbl tbody tr:hover td { background: var(--c-bg-soft); }
table.tbl td:first-child { color: var(--c-text); }
table.tbl td code { white-space: nowrap; }
.tbl { width: 100%; border-collapse: collapse; }
.tc { text-align: center; }
.req, .opt, .special { display: inline-block; font-size: 11px; font-weight: 700; padding: 1px 6px; border-radius: 5px; white-space: nowrap; }
.req { color: var(--c-danger); background: color-mix(in srgb, var(--c-danger) 12%, transparent); }
.opt { color: var(--c-text-4); background: var(--c-bg-soft); border: 1px solid var(--c-border); }
.special { color: var(--c-warn); background: var(--c-warn-bg); }
.ico-cell { text-align: left; }
.ico-cell img { height: 20px; width: auto; vertical-align: middle; }

/* 代码块 */
.tabs { margin: 12px 0 18px; border: 1px solid var(--c-border); border-radius: var(--radius); overflow: hidden; }
.tab-bar { display: flex; gap: 2px; padding: 6px 8px 0; background: var(--c-bg-soft); border-bottom: 1px solid var(--c-border); overflow-x: auto; }
.tab-bar button { border: none; background: transparent; font-family: inherit; font-size: 12.5px; color: var(--c-text-3);
  padding: 7px 12px; border-radius: 7px 7px 0 0; cursor: pointer; white-space: nowrap; }
.tab-bar button:hover { color: var(--c-text); }
.tab-bar button.on { color: var(--c-primary); background: var(--c-code-bg); font-weight: 600; }
.tab-body { background: var(--c-code-bg); position: relative; }
pre { margin: 0; padding: 16px 18px; overflow-x: auto; }
pre code { background: transparent; border: none; padding: 0; color: var(--c-code-text); font-size: 12.8px; line-height: 1.75;
  font-family: var(--mono); white-space: pre; }
pre[hidden] { display: none; }
.copy-btn { position: absolute; top: 10px; right: 12px; z-index: 3; font-size: 11.5px; font-family: inherit; color: #a9b4c9;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14); border-radius: 6px; padding: 3px 9px; cursor: pointer;
  opacity: 0; transition: opacity .15s, background .15s; }
.tab-body:hover .copy-btn { opacity: 1; }
.copy-btn:hover { background: rgba(255, 255, 255, .16); color: #fff; }
.copy-btn.done { color: #6fdca9; border-color: rgba(111, 220, 169, .4); }

/* SDK 下载卡片 */
.dl-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px; margin: 16px 0; }
.dl-card {
  display: flex; align-items: center; gap: 13px; padding: 15px 16px;
  border: 1px solid var(--c-border); border-radius: var(--radius); background: var(--c-bg);
  text-decoration: none; color: var(--c-text); transition: border-color .16s, box-shadow .16s, transform .12s;
}
.dl-card:hover { border-color: var(--c-primary); box-shadow: var(--shadow); text-decoration: none; transform: translateY(-1px); }
.dl-ico {
  width: 40px; height: 40px; flex: none; border-radius: 11px; display: grid; place-items: center;
  background: var(--c-primary-50); color: var(--c-primary);
}
.dl-ico svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.dl-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.dl-text b { font-size: 14px; display: flex; align-items: center; gap: 6px; }
.dl-text b em {
  font-style: normal; font-size: 10.5px; font-weight: 700; padding: 1px 6px; border-radius: 5px;
  color: #fff; background: var(--c-primary);
}
.dl-text b em.legacy { background: var(--c-text-4); }
.dl-text span { font-size: 12px; color: var(--c-text-3); line-height: 1.6; }
.dl-go {
  flex: none; font-size: 12.5px; font-weight: 600; color: var(--c-primary);
  border: 1px solid var(--c-primary-bg-2, var(--c-border)); border-radius: 8px; padding: 4px 11px;
}
.dl-card:hover .dl-go { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

/* FAQ */
.faq { margin: 14px 0; }.faq details { border: 1px solid var(--c-border); border-radius: var(--radius-sm); margin-bottom: 9px; background: var(--c-bg); overflow: hidden; }
.faq summary { padding: 12px 15px; cursor: pointer; font-weight: 600; font-size: 14px; list-style: none; display: flex; align-items: center; gap: 9px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "?"; flex: none; width: 18px; height: 18px; border-radius: 5px; background: var(--c-primary-50);
  color: var(--c-primary); font-size: 11px; font-weight: 800; display: grid; place-items: center; }
.faq details[open] summary { border-bottom: 1px solid var(--c-border-2); }
.faq-body { padding: 10px 15px 14px 42px; }

/* 页脚 */
.doc-foot { margin-top: 46px; padding-top: 18px; border-top: 1px solid var(--c-border-2);
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; font-size: 12.5px; color: var(--c-text-4); }
.doc-foot b { color: var(--c-text-3); }

/* ---------- 右侧 TOC ---------- */
.toc { position: sticky; top: var(--topbar-h); max-height: calc(100vh - var(--topbar-h)); padding: 26px 0 0; }
.toc-head { font-size: 11.5px; font-weight: 700; letter-spacing: .06em; color: var(--c-text-4);
  text-transform: uppercase; padding: 0 10px 8px; }
.toc-body { overflow-y: auto; max-height: calc(100vh - var(--topbar-h) - 60px); padding-right: 4px; }
.toc-body a { display: block; font-size: 12.5px; color: var(--c-text-3); padding: 4px 10px; border-left: 2px solid var(--c-border);
  line-height: 1.5; }
.toc-body a:hover { color: var(--c-text); text-decoration: none; }
.toc-body a.lv3 { padding-left: 20px; font-size: 12px; color: var(--c-text-4); }
.toc-body a.active { color: var(--c-primary); border-left-color: var(--c-primary); font-weight: 600; }

/* ---------- 浮动按钮 / 遮罩 ---------- */
.fab { position: fixed; right: 26px; bottom: 26px; z-index: 110; width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--c-border); background: var(--c-bg); color: var(--c-text-2); cursor: pointer; display: grid; place-items: center;
  box-shadow: var(--shadow); }
.fab:hover { color: var(--c-primary); border-color: var(--c-primary); }
.fab svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.scrim { display: none; }
.only-mobile { display: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1280px) {
  .layout { grid-template-columns: 236px minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 980px) {
  /* 兜底：以后万一又加了「没包 .tbl-wrap」的宽表格，也不能把整页撑宽
     ——整页比屏幕宽时，手机上就是「右边一片白 + 内容被裁」（历史 bug） */
  .content > .doc-sec > table.tbl { max-width: 100%; }
  .content > .doc-sec > table.tbl th,
  .content > .doc-sec > table.tbl td { white-space: normal; overflow-wrap: anywhere; }
  .content > .doc-sec > table.tbl td code { white-space: normal; }
  :root { --topbar-h: 56px; }
  .layout { display: block; padding: 0 16px; }
  .only-mobile { display: grid; }
  .brand-text em { display: none; }
  .btn-home { display: none; }
  .sidebar { position: fixed; top: 0; left: 0; bottom: 0; width: 276px; max-height: none; z-index: 160;
    background: var(--c-bg); border-right: 1px solid var(--c-border); padding: 14px 0 0;
    transform: translateX(-100%); transition: transform .22s ease; box-shadow: var(--shadow); }
  .sidebar.open { transform: none; }
  .side-head .icon-btn { display: grid; }
  .scrim { display: block; position: fixed; inset: 0; z-index: 150; background: rgba(12, 18, 32, .45); opacity: 0; pointer-events: none; transition: opacity .2s; }
  .scrim.on { opacity: 1; pointer-events: auto; }
  .content { padding-top: 20px; }
  .page-hero h1 { font-size: 25px; }
  .doc-sec > h2 { font-size: 20px; }
  .search-wrap { max-width: none; }
  .s-kbd { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 14px; }
  .layout { padding: 0 13px; }
  .topbar-inner { padding: 0 13px; gap: 8px; }
  .brand-text b { font-size: 14px; }
  .page-hero h1 { font-size: 22px; }
  .doc-sec > h2 { font-size: 18.5px; }
  pre { padding: 13px 12px; }
  pre code { font-size: 12px; }
  .fab { right: 16px; bottom: 16px; }
  .copy-btn { opacity: 1; }
}

/* ---------- 打印 ---------- */
@media print {
  .topbar, .sidebar, .toc, .fab, .progress, .copy-btn, .tab-bar, .scrim { display: none !important; }
  .layout { display: block; max-width: none; padding: 0; }
  body { font-size: 11.5pt; color: #000; }
  .tab-body pre[hidden] { display: block !important; }
  .doc-sec { break-inside: avoid; }
  h2, h3 { break-after: avoid; }
  a { color: #000; text-decoration: none; }
  .tbl-wrap { overflow: visible; }
  table.tbl { min-width: 0; }
}