@import url("data:text/css,");

:root {
  --topbar-height: 68px;
  --sidebar-width: 286px;
  --toc-width: 232px;
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-soft: #f2f5fb;
  --surface-tint: #eef2ff;
  --text: #182033;
  --text-soft: #657089;
  --text-faint: #929bb0;
  --line: #e4e9f2;
  --primary: #4f68e9;
  --primary-strong: #364fc7;
  --primary-soft: #e9edff;
  --violet: #7b61e8;
  --cyan: #24a8c2;
  --success: #32b47c;
  --shadow-sm: 0 2px 12px rgba(27, 39, 80, .06);
  --shadow-md: 0 14px 40px rgba(35, 49, 97, .11);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --content-font-size: 16px;
  color-scheme: light;
}

html[data-theme="dark"] {
  --bg: #111522;
  --surface: #191f2e;
  --surface-soft: #212838;
  --surface-tint: #222947;
  --text: #edf0f7;
  --text-soft: #aeb7ca;
  --text-faint: #778198;
  --line: #2d3548;
  --primary: #8599ff;
  --primary-strong: #a8b5ff;
  --primary-soft: #293253;
  --violet: #a48cf9;
  --cyan: #5dc9dd;
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, .16);
  --shadow-md: 0 14px 40px rgba(0, 0, 0, .28);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-height) + 28px); }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
button, input { font: inherit; }
button { color: inherit; }
svg { display: block; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; padding: 10px 16px; border-radius: 8px; background: var(--primary); color: #fff; text-decoration: none; transition: top .2s; }
.skip-link:focus { top: 10px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.topbar { height: var(--topbar-height); position: fixed; inset: 0 0 auto; z-index: 100; display: grid; grid-template-columns: var(--sidebar-width) minmax(280px, 560px) 1fr; align-items: center; gap: 32px; padding: 0 24px; background: color-mix(in srgb, var(--surface) 94%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.brand { display: flex; align-items: center; min-width: 0; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; flex: 0 0 auto; color: var(--primary); }
.brand-mark svg { width: 35px; height: 35px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linejoin: round; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; margin-left: 9px; white-space: nowrap; }
.brand-copy strong { font-size: 15px; letter-spacing: .02em; }
.brand-copy span { margin-top: 4px; color: var(--text-soft); font-size: 11px; letter-spacing: .18em; }
.version-pill { margin-left: 10px; padding: 3px 7px; border-radius: 5px; background: var(--primary-soft); color: var(--primary-strong); font-size: 10px; font-weight: 700; }
.icon-button { width: 38px; height: 38px; display: grid; place-items: center; border: 0; border-radius: 10px; background: transparent; cursor: pointer; transition: background .18s, color .18s; }
.icon-button:hover { background: var(--surface-soft); color: var(--primary); }
.icon-button svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.menu-button { display: none; margin-right: 6px; }
.search-trigger { width: 100%; height: 40px; display: flex; align-items: center; gap: 10px; padding: 0 12px; color: var(--text-soft); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 10px; cursor: pointer; text-align: left; }
.search-trigger:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--line)); }
.search-trigger svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.search-trigger span { flex: 1; font-size: 13px; }
kbd { padding: 3px 6px; color: var(--text-faint); background: var(--surface); border: 1px solid var(--line); border-radius: 5px; box-shadow: 0 1px 1px rgba(0,0,0,.05); font: 10px/1.2 inherit; }
.top-actions { justify-self: end; display: flex; gap: 3px; }
.font-icon { font-family: Georgia, serif; font-size: 20px; }
.moon-icon { display: none !important; }
html[data-theme="dark"] .sun-icon { display: none; }
html[data-theme="dark"] .moon-icon { display: block !important; }

.app-shell { min-height: 100vh; padding-top: var(--topbar-height); display: grid; grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--toc-width); }
.sidebar { position: fixed; z-index: 90; left: 0; top: var(--topbar-height); bottom: 0; width: var(--sidebar-width); display: flex; flex-direction: column; padding: 21px 14px 16px; background: var(--surface); border-right: 1px solid var(--line); }
.sidebar-heading { display: flex; justify-content: space-between; align-items: center; padding: 0 12px 13px; color: var(--text-faint); font-size: 11px; font-weight: 700; letter-spacing: .16em; }
.sidebar-collapse { width: 28px; height: 28px; display: grid; place-items: center; border: 0; border-radius: 7px; background: transparent; color: var(--text-soft); cursor: pointer; }
.sidebar-collapse:hover { background: var(--surface-soft); }
.sidebar-collapse svg { width: 17px; fill: none; stroke: currentColor; stroke-width: 2; }
.main-nav { flex: 1; overflow: auto; scrollbar-width: thin; scrollbar-color: var(--line) transparent; padding-right: 2px; }
.nav-chapter { margin: 2px 0; }
.nav-chapter-row { display: flex; align-items: center; border-radius: 8px; }
.nav-chapter-row:hover { background: var(--surface-soft); }
.nav-chapter-row.active { background: var(--primary-soft); color: var(--primary-strong); }
.nav-chapter-row > a { flex: 1; min-width: 0; padding: 9px 5px 9px 11px; display: flex; gap: 9px; align-items: center; color: var(--text); text-decoration: none; font-size: 13px; font-weight: 600; }
.nav-chapter-row.active > a { color: var(--primary-strong); }
.chapter-number { color: var(--text-faint); font-size: 10px; font-weight: 700; font-variant-numeric: tabular-nums; }
.nav-toggle { width: 31px; height: 31px; flex: 0 0 auto; display: grid; place-items: center; border: 0; background: transparent; color: var(--text-faint); cursor: pointer; }
.nav-toggle svg { width: 14px; fill: none; stroke: currentColor; stroke-width: 2; transition: transform .2s; }
.nav-chapter.expanded .nav-toggle svg { transform: rotate(90deg); }
.nav-children { display: none; padding: 2px 0 8px 38px; }
.nav-chapter.expanded .nav-children { display: block; }
.nav-children a { display: block; position: relative; padding: 6px 10px 6px 13px; color: var(--text-soft); text-decoration: none; font-size: 12px; line-height: 1.45; border-left: 1px solid var(--line); }
.nav-children a:hover, .nav-children a.active { color: var(--primary-strong); border-left-color: var(--primary); }
.sidebar-footer { margin: 13px 5px 0; padding: 12px 10px; display: flex; align-items: center; gap: 10px; border-top: 1px solid var(--line); }
.sidebar-footer .status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 15%, transparent); }
.sidebar-footer div { display: flex; flex-direction: column; gap: 3px; }
.sidebar-footer strong { font-size: 11px; }
.sidebar-footer small { color: var(--text-faint); font-size: 9px; }
.mobile-overlay { display: none; }

.page-main { grid-column: 2; min-width: 0; outline: none; }
.manual-article { max-width: 980px; margin: 0 auto; padding: 42px 54px 46px; }
.hero { min-height: 390px; position: relative; overflow: hidden; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; margin: 3px 0 44px; padding: 48px 44px; background: linear-gradient(135deg, color-mix(in srgb, var(--primary-soft) 55%, var(--surface)) 0%, var(--surface) 48%, color-mix(in srgb, #f0f2ff 55%, var(--surface)) 100%); border: 1px solid color-mix(in srgb, var(--primary) 12%, var(--line)); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.hero::before { content: ""; position: absolute; width: 330px; height: 330px; right: -75px; top: -100px; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--primary) 12%, transparent), transparent 67%); }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { margin-bottom: 19px; color: var(--primary); font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.hero h1 { margin: 0; font-size: clamp(38px, 4vw, 55px); line-height: 1.13; letter-spacing: -.055em; }
.hero h1 span { color: var(--primary); }
.hero-copy > p { max-width: 440px; margin: 22px 0; color: var(--text-soft); font-size: 14px; line-height: 1.9; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 16px; margin: 0 0 25px; color: var(--text-faint); font-size: 10px; }
.hero-meta span { display: flex; align-items: center; gap: 5px; }
.hero-meta svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.start-button { width: max-content; display: flex; align-items: center; gap: 8px; padding: 11px 17px; color: #fff; background: var(--primary); border-radius: 9px; box-shadow: 0 7px 18px color-mix(in srgb, var(--primary) 25%, transparent); text-decoration: none; font-size: 13px; font-weight: 700; transition: transform .18s, background .18s; }
.start-button:hover { transform: translateY(-2px); background: var(--primary-strong); }
.start-button svg { width: 15px; fill: none; stroke: currentColor; stroke-width: 2; }
.hero-visual { position: relative; min-height: 315px; z-index: 1; }
.hero-model { position: absolute; width: 112%; max-width: 500px; right: -28px; top: -25px; }
.orbit { position: absolute; border: 1px solid color-mix(in srgb, var(--primary) 20%, transparent); border-radius: 50%; }
.orbit-one { width: 270px; height: 120px; right: 25px; top: 98px; transform: rotate(-10deg); }
.orbit-two { width: 180px; height: 280px; right: 56px; top: 6px; transform: rotate(61deg); }
.data-pill { position: absolute; z-index: 2; padding: 6px 9px; border-radius: 6px; color: var(--primary-strong); background: var(--surface); box-shadow: var(--shadow-sm); border: 1px solid var(--line); font-size: 9px; font-weight: 800; letter-spacing: .08em; }
.pill-one { left: 1%; top: 25%; }.pill-two { right: 3%; top: 19%; }.pill-three { left: 11%; bottom: 17%; }.pill-four { right: 8%; bottom: 16%; }
.quick-start { margin-bottom: 45px; }
.section-label { color: var(--primary); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.quick-start h2 { margin: 7px 0 5px; font-size: 24px; letter-spacing: -.02em; }
.section-intro { margin: 0 0 22px; color: var(--text-soft); font-size: 13px; }
.quick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
.quick-card { min-width: 0; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; padding: 17px 15px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); text-decoration: none; transition: transform .18s, border-color .18s, box-shadow .18s; }
.quick-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--primary) 35%, var(--line)); box-shadow: var(--shadow-md); }
.quick-icon { width: 39px; height: 39px; display: grid; place-items: center; border-radius: 10px; }
.quick-icon.blue { color: var(--primary); background: var(--primary-soft); }.quick-icon.violet { color: var(--violet); background: color-mix(in srgb, var(--violet) 12%, var(--surface)); }.quick-icon.cyan { color: var(--cyan); background: color-mix(in srgb, var(--cyan) 12%, var(--surface)); }
.quick-icon svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.quick-card > span:nth-child(2) { min-width: 0; display: flex; flex-direction: column; }
.quick-card small { margin-bottom: 4px; color: var(--text-faint); font-size: 8px; font-style: normal; letter-spacing: .05em; }
.quick-card strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.quick-card em { margin-top: 5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-soft); font-size: 9px; font-style: normal; }
.card-arrow { width: 14px; fill: none; stroke: var(--text-faint); stroke-width: 2; }
.content-divider { display: flex; align-items: center; gap: 16px; margin: 10px 0 50px; color: var(--text-faint); font-size: 10px; font-weight: 700; letter-spacing: .14em; }
.content-divider::before, .content-divider::after { content: ""; height: 1px; flex: 1; background: var(--line); }

.document-content { font-size: var(--content-font-size); line-height: 1.82; overflow-wrap: break-word; }
.document-content .level1 { margin-bottom: 76px; }
.document-content section { scroll-margin-top: calc(var(--topbar-height) + 30px); }
.document-content h1, .document-content h2, .document-content h3, .document-content h4, .document-content h5 { scroll-margin-top: calc(var(--topbar-height) + 28px); color: var(--text); line-height: 1.35; }
.document-content h1 { margin: 0 0 32px; padding: 0 0 18px; border-bottom: 1px solid var(--line); font-size: 32px; letter-spacing: -.035em; }
.document-content h1::before { content: "第 " attr(data-chapter-number) " 章"; display: block; margin-bottom: 8px; color: var(--primary); font-size: 10px; font-weight: 800; letter-spacing: .2em; }
.document-content h2 { margin: 45px 0 18px; font-size: 24px; letter-spacing: -.02em; }
.document-content h3 { margin: 35px 0 15px; font-size: 19px; }
.document-content h4 { margin: 28px 0 12px; font-size: 16px; }
.document-content h5 { margin: 24px 0 10px; font-size: 14px; }
.document-content p { margin: 0 0 16px; color: var(--text); }
.document-content strong { font-weight: 700; }
.document-content a { color: var(--primary-strong); text-underline-offset: 3px; }
.document-content ul, .document-content ol { margin: 8px 0 20px; padding-left: 1.5em; }
.document-content li { margin: 6px 0; padding-left: .2em; }
.document-content li::marker { color: var(--primary); font-weight: 700; }
.document-content blockquote { margin: 24px 0; padding: 17px 20px; background: var(--primary-soft); border-left: 3px solid var(--primary); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-soft); }
.document-content blockquote p:last-child { margin-bottom: 0; }
.document-content code { padding: 2px 5px; color: var(--primary-strong); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 4px; font-family: "SFMono-Regular", Consolas, monospace; font-size: .88em; }
.document-content img { max-width: 100%; height: auto !important; display: inline-block; vertical-align: middle; object-fit: contain; }
.document-content > .level1 img:not(td img):not(th img), .document-content .manual-figure img { display: block; margin: 22px auto; border-radius: 7px; }
.document-content img[style*="width:6in"], .document-content img[style*="width:5."], .document-content img[style*="width:7."], .document-content img[style*="width:8."] { padding: 5px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.manual-figure { margin: 24px 0 12px; }
.manual-figure img { max-height: 620px; }
.table-wrap { width: 100%; overflow-x: auto; margin: 22px 0 30px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
.document-content table { width: 100%; min-width: 580px; border-collapse: collapse; font-size: .9em; line-height: 1.55; }
.document-content th, .document-content td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.document-content th { background: var(--surface-soft); font-weight: 700; }
.document-content tr:nth-child(even) td { background: color-mix(in srgb, var(--surface-soft) 50%, transparent); }
.document-content td img { max-width: 140px; margin: 0 auto; border: 0; box-shadow: none; }
.loading-state { min-height: 320px; display: grid; place-content: center; justify-items: center; color: var(--text-soft); }
.loading-state span { width: 30px; height: 30px; border: 3px solid var(--line); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; }
.loading-state p { margin-top: 12px; font-size: 12px; }
@keyframes spin { to { transform: rotate(360deg); } }

.chapter-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-top: 60px; padding-top: 26px; border-top: 1px solid var(--line); }
.pager-link { display: flex; flex-direction: column; gap: 4px; padding: 15px 17px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; text-decoration: none; }
.pager-link:hover { border-color: var(--primary); }
.pager-link.next { text-align: right; }
.pager-link small { color: var(--text-faint); font-size: 10px; }
.pager-link strong { color: var(--primary-strong); font-size: 13px; }
.article-footer { margin-top: 30px; padding-top: 18px; display: flex; justify-content: space-between; color: var(--text-faint); border-top: 1px solid var(--line); font-size: 10px; }
.article-footer a { text-decoration: none; }

.page-toc { position: fixed; z-index: 20; top: var(--topbar-height); bottom: 0; right: 0; width: var(--toc-width); padding: 35px 22px 25px 20px; border-left: 1px solid transparent; }
.toc-label { margin: 0 0 12px 12px; color: var(--text-faint); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
#page-toc-nav { max-height: calc(100vh - 220px); overflow: hidden auto; scrollbar-width: none; }
#page-toc-nav a { display: block; padding: 6px 10px; color: var(--text-soft); border-left: 1px solid var(--line); text-decoration: none; font-size: 10px; line-height: 1.45; transition: color .15s, border-color .15s; }
#page-toc-nav a.sub { padding-left: 18px; font-size: 9px; }
#page-toc-nav a:hover, #page-toc-nav a.active { color: var(--primary-strong); border-left: 2px solid var(--primary); font-weight: 700; }
.reading-progress { position: absolute; left: 30px; right: 28px; bottom: 29px; display: grid; grid-template-columns: 1fr auto; gap: 7px; color: var(--text-faint); font-size: 9px; }
.reading-progress strong { color: var(--primary); font-size: 9px; }
.reading-progress div { grid-column: 1 / -1; height: 3px; overflow: hidden; background: var(--line); border-radius: 9px; }
.reading-progress i { display: block; width: 0; height: 100%; background: var(--primary); transition: width .1s linear; }

.back-to-top { position: fixed; z-index: 50; right: calc(var(--toc-width) + 22px); bottom: 24px; width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--text-soft); box-shadow: var(--shadow-sm); opacity: 0; pointer-events: none; transform: translateY(8px); transition: .2s; cursor: pointer; }
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: none; }
.back-to-top svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 2; }

.search-dialog { width: min(680px, calc(100vw - 32px)); max-height: min(640px, calc(100vh - 70px)); padding: 0; overflow: hidden; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 15px; box-shadow: 0 25px 90px rgba(8, 14, 35, .3); }
.search-dialog::backdrop { background: rgba(12, 18, 36, .45); backdrop-filter: blur(3px); }
.search-box { height: 60px; display: flex; align-items: center; gap: 11px; padding: 0 16px; border-bottom: 1px solid var(--line); }
.search-box svg { width: 20px; flex: 0 0 auto; fill: none; stroke: var(--text-soft); stroke-width: 1.8; }
.search-box input { flex: 1; min-width: 0; height: 100%; color: var(--text); background: transparent; border: 0; outline: 0; font-size: 15px; }
.search-box input::placeholder { color: var(--text-faint); }
.search-results { min-height: 160px; max-height: 520px; overflow-y: auto; padding: 10px; }
.search-empty { min-height: 145px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; color: var(--text-faint); }
.search-empty strong { color: var(--text-soft); font-size: 13px; }.search-empty span { font-size: 11px; }
.search-result { display: block; padding: 11px 13px; border-radius: 8px; text-decoration: none; }
.search-result:hover, .search-result.selected { background: var(--surface-soft); }
.search-result strong { display: block; margin-bottom: 4px; color: var(--text); font-size: 13px; }
.search-result span { display: -webkit-box; overflow: hidden; color: var(--text-soft); font-size: 11px; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.search-result mark { padding: 0 2px; color: var(--primary-strong); background: var(--primary-soft); border-radius: 2px; }
.search-count { padding: 8px 13px 5px; color: var(--text-faint); font-size: 10px; }

body.font-large { --content-font-size: 18px; }
body.font-large .document-content { line-height: 1.9; }
@media print {
  :root { --bg: #fff; --surface: #fff; --text: #111; }
  .topbar, .sidebar, .page-toc, .back-to-top, .quick-start, .chapter-pager { display: none !important; }
  .app-shell { display: block; padding: 0; }.page-main { display: block; }.manual-article { max-width: none; padding: 0; }.hero { box-shadow: none; break-after: page; }.document-content .level1 { break-before: page; }.document-content img { break-inside: avoid; }
}

@media (max-width: 1240px) {
  :root { --toc-width: 0px; }
  .app-shell { grid-template-columns: var(--sidebar-width) minmax(0, 1fr); }
  .page-toc { display: none; }
  .manual-article { max-width: 920px; }
  .back-to-top { right: 22px; }
}
@media (max-width: 900px) {
  :root { --sidebar-width: 0px; }
  .topbar { grid-template-columns: auto minmax(180px, 1fr) auto; gap: 14px; padding: 0 14px; }
  .menu-button { display: grid; }
  .brand-copy, .version-pill { display: none; }
  .sidebar { width: 285px; transform: translateX(-102%); box-shadow: var(--shadow-md); transition: transform .22s ease; }
  body.sidebar-open .sidebar { transform: none; }
  .mobile-overlay { position: fixed; z-index: 80; inset: var(--topbar-height) 0 0; display: block; pointer-events: none; background: rgba(8, 13, 29, .35); opacity: 0; transition: opacity .22s; }
  body.sidebar-open .mobile-overlay { opacity: 1; pointer-events: auto; }
  .app-shell { display: block; }
  .page-main { width: 100%; }
  .manual-article { max-width: 780px; padding: 34px 28px 40px; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding: 42px; }
  .hero-copy { max-width: 560px; }
  .hero-visual { display: none; }
  .quick-grid { grid-template-columns: 1fr; }
  .quick-card em { white-space: normal; }
}
@media (max-width: 580px) {
  :root { --topbar-height: 60px; }
  .topbar { grid-template-columns: auto 1fr auto; }
  .brand-mark { display: none; }
  .search-trigger { padding: 0 10px; }
  .search-trigger span { font-size: 12px; }
  .search-trigger kbd, #font-button { display: none; }
  .manual-article { padding: 22px 16px 32px; }
  .hero { margin-top: 0; padding: 32px 24px; border-radius: 16px; }
  .hero h1 { font-size: 37px; }
  .hero-copy > p { font-size: 13px; }
  .hero-meta { gap: 10px; }
  .document-content h1 { font-size: 28px; }
  .document-content h2 { font-size: 22px; }
  .chapter-pager { grid-template-columns: 1fr; }
  .article-footer { flex-direction: column; gap: 8px; }
  .document-content img[style] { width: auto !important; max-width: 100%; }
}

.manual-cover { margin: 0 0 58px; padding: 28px 34px; display: flex; align-items: center; gap: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.manual-cover img { width: 94px !important; height: auto !important; margin: 0 !important; border: 0 !important; box-shadow: none !important; }
.manual-cover div { display: flex; flex-direction: column; gap: 7px; }
.manual-cover strong { font-size: 18px; }
.manual-cover span { color: var(--text-soft); font-size: 12px; }
@media (max-width: 580px) { .manual-cover { padding: 20px; }.manual-cover img { width: 70px !important; }.manual-cover strong { font-size: 15px; } }