/* AI 专区：面向真人阅读的技术手册与项目目录。 */
body.ai-manual-page { --ai-doc-max: 1180px; }
.ai-manual-page main { padding: 30px 0 72px; }
.ai-manual-page .ai-doc-hero,
.ai-manual-page .ai-doc-layout,
.ai-manual-page .ai-project-grid { width: min(var(--ai-doc-max), calc(100% - 36px)); margin-inline: auto; }
.ai-doc-hero { padding: clamp(26px, 5vw, 54px) 0 32px; border-bottom: 1px solid var(--line); }
.ai-doc-breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; color: var(--ink-faint); font-size: 14px; }
.ai-doc-breadcrumb a { color: inherit; }
.ai-doc-breadcrumb a:hover { color: var(--ink); }
.ai-doc-kicker { margin-bottom: 10px; color: rgb(var(--c-green-rgb)); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.ai-doc-hero h1 { max-width: 900px; margin: 0; color: var(--ink); font-size: clamp(38px, 6vw, 72px); line-height: 1.05; letter-spacing: -.045em; text-wrap: balance; }
.ai-doc-hero > p { max-width: 820px; margin: 18px 0 0; color: var(--ink-dim); font-size: clamp(17px, 2vw, 21px); line-height: 1.75; }
.ai-doc-actions,.ai-doc-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.ai-doc-tags span { padding: 6px 10px; border: 1px solid var(--line); border-radius: 5px; color: var(--ink-dim); background: rgba(4,13,25,.3); font-size: 13px; }
.ai-doc-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: clamp(28px, 5vw, 68px); padding-top: 34px; }
.ai-doc-nav { align-self: start; position: sticky; top: 88px; padding: 18px; border: 1px solid var(--line); background: rgba(4,13,25,.58); }
.ai-doc-nav strong { display: block; margin-bottom: 10px; color: var(--ink); font-size: 14px; }
.ai-doc-nav a { display: block; padding: 8px 0; color: var(--ink-faint); font-size: 14px; line-height: 1.35; border-top: 1px solid rgba(255,255,255,.045); }
.ai-doc-nav a:hover { color: rgb(var(--c-green-rgb)); }
.ai-doc-body { min-width: 0; }
.ai-doc-section { padding: 0 0 38px; margin-bottom: 38px; border-bottom: 1px solid var(--line); scroll-margin-top: 90px; }
.ai-doc-section:last-child { border-bottom: 0; }
.ai-doc-section h2 { margin: 0 0 16px; color: var(--ink); font-size: clamp(27px, 3vw, 38px); line-height: 1.15; letter-spacing: -.025em; text-wrap: balance; }
.ai-doc-section h3 { margin: 26px 0 10px; color: var(--ink); font-size: 20px; line-height: 1.3; text-wrap: balance; }
.ai-doc-section :where(p,li,dd) { color: var(--ink-dim); font-size: 16px; line-height: 1.8; }
.ai-doc-section :where(ul,ol) { padding-left: 1.3em; }
.ai-doc-section li + li { margin-top: 7px; }
.ai-doc-section code { padding: .12em .38em; border: 1px solid var(--line); border-radius: 4px; color: var(--ink); background: rgba(0,0,0,.24); font-family: ui-monospace,Consolas,monospace; font-size: .92em; }
.ai-doc-code { position: relative; overflow: auto; margin: 14px 0; padding: 18px; border: 1px solid var(--line); background: rgba(2,8,18,.74); color: #dbe7ef; font: 14px/1.7 ui-monospace,Consolas,monospace; white-space: pre-wrap; word-break: break-word; }
.ai-doc-note { margin: 18px 0; padding: 14px 16px; border-left: 3px solid rgb(var(--c-green-rgb)); background: rgba(var(--c-green-rgb),.08); color: var(--ink-dim); line-height: 1.7; }
.ai-doc-note[data-tone="warning"] { border-left-color: #e8b74b; background: rgba(232,183,75,.09); }
.ai-doc-note strong { color: var(--ink); }
.ai-doc-table-wrap { overflow-x: auto; margin: 16px 0; border: 1px solid var(--line); }
.ai-doc-table { width: 100%; border-collapse: collapse; min-width: 600px; }
.ai-doc-table :where(th,td) { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.ai-doc-table th { color: var(--ink); background: rgba(var(--c-green-rgb),.08); font-size: 13px; }
.ai-doc-table td { color: var(--ink-dim); font-size: 14px; line-height: 1.65; }
.ai-doc-table tr:last-child td { border-bottom: 0; }
.ai-checklist { display: grid; gap: 10px; padding: 0; list-style: none; }
.ai-checklist li { position: relative; padding: 12px 14px 12px 42px; border: 1px solid var(--line); background: rgba(4,13,25,.4); }
.ai-checklist li::before { content: '✓'; position: absolute; left: 15px; top: 12px; color: rgb(var(--c-green-rgb)); font-weight: 900; }
.ai-project-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1px; margin-top: 28px; padding: 1px; background: var(--line); }
.ai-project-card { display: flex; min-height: 260px; flex-direction: column; padding: clamp(24px,4vw,42px); background: rgba(4,13,25,.82); color: inherit; }
.ai-project-card small { color: rgb(var(--c-green-rgb)); font-weight: 800; letter-spacing: .06em; }
.ai-project-card h2 { margin: 12px 0 10px; color: var(--ink); font-size: clamp(25px,3vw,36px); line-height: 1.15; text-wrap: balance; }
.ai-project-card p { margin: 0; color: var(--ink-dim); font-size: 15px; line-height: 1.72; }
.ai-project-card span { margin-top: auto; padding-top: 20px; color: var(--ink); font-weight: 750; }
.ai-project-card:hover { background: rgba(var(--c-green-rgb),.075); }
.ai-overview-strip { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin-top: 26px; padding: 1px; background: var(--line); }
.ai-overview-strip div { padding: 16px; background: rgba(4,13,25,.72); }
.ai-overview-strip b { display: block; color: var(--ink); font-size: 18px; }
.ai-overview-strip span { color: var(--ink-faint); font-size: 13px; }
html[data-palette="porcelain"] .ai-doc-nav,
html[data-palette="porcelain"] .ai-project-card,
html[data-palette="porcelain"] .ai-overview-strip div,
html[data-palette="porcelain"] .ai-checklist li { background: rgba(255,255,255,.82); }
html[data-palette="porcelain"] .ai-doc-code { background: #112433; color: #edf8ff; }
html[data-palette="porcelain"] .ai-doc-tags span { background: rgba(255,255,255,.76); }
@media (max-width: 820px) {
  .ai-doc-layout { grid-template-columns: 1fr; }
  .ai-doc-nav { position: static; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 14px; }
  .ai-doc-nav strong { grid-column: 1/-1; }
  .ai-project-grid { grid-template-columns: 1fr; }
  .ai-overview-strip { grid-template-columns: 1fr; }
}
@media (max-width: 540px) {
  .ai-manual-page .ai-doc-hero,.ai-manual-page .ai-doc-layout,.ai-manual-page .ai-project-grid { width: min(100% - 24px,var(--ai-doc-max)); }
  .ai-doc-hero h1 { font-size: 38px; }
  .ai-doc-nav { grid-template-columns: 1fr; }
  .ai-doc-actions .btn { width: 100%; justify-content: center; }
}