/* 三端布局。方向A/B使用不同容器与信息结构，而非仅替换颜色。 */
.web-header { height: 64px; border-bottom: 1px solid var(--line); background: var(--paper); }
.web-header-inner { max-width: var(--max-web); height: 100%; margin: 0 auto; padding: 0 32px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 600; white-space: nowrap; }
.brand:hover { color: var(--accent); text-decoration: none; }
.brand-mark { width: 28px; height: 28px; color: var(--accent); }
.web-nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.web-nav a { color: var(--ink-2); font-size: var(--fs-sm); white-space: nowrap; }
.web-nav a:hover { color: var(--accent); }
.web-main { max-width: var(--max-web); margin: 0 auto; padding: 0 32px; }
.web-footer { max-width: var(--max-web); margin: 64px auto 0; padding: 24px 32px 32px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 24px; color: var(--ink-3); font-size: var(--fs-sm); }
.web-hero-a { min-height: 610px; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(360px, .88fr); gap: 64px; align-items: center; padding: 64px 0 48px; }
.web-hero-a h1 { max-width: 12ch; margin: 16px 0 24px; font-size: var(--fs-web); line-height: 1.14; }
.web-hero-a .lead { max-width: 36ch; color: var(--ink-2); font-size: var(--fs-md); line-height: 1.7; }
.web-hero-a .btn-row { margin-top: 32px; }
.trust-line { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 24px; color: var(--ink-2); font-size: var(--fs-sm); }
.trust-line span { display: inline-flex; align-items: center; gap: 6px; }
.package-panel { padding: 24px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--r-card); box-shadow: var(--shadow); }
.package-panel > h2 { margin-bottom: 16px; }
.package-meta { display: grid; grid-template-columns: 112px 1fr; gap: 12px 16px; margin: 24px 0; font-size: var(--fs-sm); }
.package-meta dt { color: var(--ink-3); }
.package-meta dd { margin: 0; color: var(--ink); overflow-wrap: anywhere; }
.web-section { padding: 48px 0; border-top: 1px solid var(--line); }
.web-section > h2 { margin-bottom: 16px; }
.boundary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.boundary-grid ul { list-style: none; display: grid; gap: 12px; margin-top: 16px; }
.boundary-grid li { display: flex; gap: 8px; }
.web-b-layout { display: grid; grid-template-columns: 184px minmax(0, 1fr); gap: 64px; padding-top: 48px; }
.chapter-rail { align-self: start; position: sticky; top: 24px; }
.chapter-rail nav { display: grid; gap: 4px; margin-top: 16px; }
.chapter-rail a { padding: 8px 12px; color: var(--ink-2); border-left: 2px solid transparent; font-size: var(--fs-sm); }
.chapter-rail a:hover, .chapter-rail a.active { color: var(--accent); border-left-color: var(--accent); text-decoration: none; }
.web-b-content { max-width: 920px; }
.web-b-content > h1 { max-width: 15ch; margin: 8px 0 24px; font-size: var(--fs-web); }
.web-b-content > .lead { max-width: 45ch; color: var(--ink-2); font-size: var(--fs-md); }
.download-band { margin: 40px 0 48px; padding: 24px 0; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.download-band h2 { margin-bottom: 8px; }
.install-steps { list-style: none; counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 24px; }
.install-steps li { counter-increment: step; padding-top: 16px; border-top: 2px solid var(--accent); }
.install-steps li::before { content: counter(step); display: block; margin-bottom: 12px; color: var(--accent); font-family: var(--mono); font-size: var(--fs-xl); }
.app-shell-a { min-height: 100vh; display: grid; grid-template-columns: var(--sidebar) minmax(0, 1fr); }
.side-a { padding: 24px 16px; border-right: 1px solid var(--line); background: var(--paper); }
.side-a .brand { margin: 0 8px 24px; }
.workspace-name { margin: 0 8px 24px; color: var(--ink-3); font-size: var(--fs-cap); }
.side-nav { display: grid; gap: 4px; }
.side-nav a, .side-nav button { width: 100%; min-height: 40px; display: flex; align-items: center; gap: 12px; padding: 8px 12px; color: var(--ink-2); background: transparent; border: 0; border-radius: var(--r-ctl); text-align: left; font-size: var(--fs-sm); }
.side-nav a:hover, .side-nav button:hover { color: var(--accent); background: var(--accent-soft); text-decoration: none; }
.side-nav a.active { color: var(--accent); background: var(--accent-soft); font-weight: 600; box-shadow: inset 2px 0 0 var(--accent); }
.side-bottom { margin-top: 32px; padding: 16px 8px 0; border-top: 1px solid var(--line); }
.app-area { min-width: 0; }
.app-topbar { height: 56px; padding: 0 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); color: var(--ink-2); font-size: var(--fs-sm); }
.app-main { max-width: var(--max-app); margin: 0 auto; padding: 32px; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.page-head h1 { margin-bottom: 8px; }
.page-head p { color: var(--ink-2); }
.health-strip { display: flex; flex-wrap: wrap; gap: 8px 24px; padding: 12px 16px; margin-bottom: 24px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink-2); font-size: var(--fs-sm); }
.health-strip span { display: inline-flex; align-items: center; gap: 8px; }
.duty-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 32px; align-items: start; }
.focus-title { margin-bottom: 16px; }
.focus-task { padding: 24px 0 32px; border-top: 2px solid var(--gold); }
.focus-task h2 { max-width: 24ch; margin: 12px 0; font-size: var(--fs-xl); }
.focus-task p { color: var(--ink-2); }
.focus-task .btn-row { margin-top: 24px; }
.task-list { list-style: none; border-top: 1px solid var(--line); }
.task-list li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--line); }
.task-list h3 { margin-bottom: 4px; font-size: var(--fs-base); }
.task-list p { color: var(--ink-3); font-size: var(--fs-sm); }
.health-panel { padding-left: 24px; border-left: 1px solid var(--line); }
.health-panel h2 { margin-bottom: 16px; font-size: var(--fs-md); }
.recent-list { list-style: none; margin-top: 24px; }
.recent-list li { position: relative; padding: 0 0 16px 20px; color: var(--ink-2); font-size: var(--fs-sm); border-left: 1px solid var(--line-strong); }
.recent-list li::before { content: ""; position: absolute; left: -4px; top: 7px; width: 7px; height: 7px; border-radius: var(--round); background: var(--accent); }
.recent-list time { display: block; color: var(--ink-3); font-size: var(--fs-cap); }
.top-app-bar { height: 64px; padding: 0 32px; display: flex; align-items: center; gap: 32px; border-bottom: 1px solid var(--line); }
.top-app-nav { display: flex; align-items: center; gap: 8px; }
.top-app-nav a, .top-app-nav button { min-height: 40px; padding: 8px 12px; color: var(--ink-2); background: transparent; border: 0; border-radius: var(--r-ctl); font-size: var(--fs-sm); }
.top-app-nav a:hover, .top-app-nav button:hover { color: var(--accent); background: var(--accent-soft); text-decoration: none; }
.top-app-nav a.active { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.top-app-meta { margin-left: auto; color: var(--ink-3); font-size: var(--fs-sm); }
.workspace-b { max-width: var(--max-app); margin: 0 auto; padding: 32px; }
.process-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin: 24px 0 32px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.process-strip div { padding: 16px; border-right: 1px solid var(--line); }
.process-strip div:last-child { border-right: 0; }
.process-strip strong { display: block; margin-bottom: 4px; font-weight: 600; }
.process-strip span { color: var(--ink-3); font-size: var(--fs-sm); }
.process-strip .current { color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 -2px 0 var(--accent); }
.queue-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; }
.queue-table { border-top: 2px solid var(--accent); }
.queue-row { display: grid; grid-template-columns: 112px minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--line); }
.queue-row h2 { font-size: var(--fs-base); }
.queue-row p { color: var(--ink-3); font-size: var(--fs-sm); }
.context-panel { padding-left: 24px; border-left: 1px solid var(--line); }
.context-panel h2 { margin-bottom: 16px; font-size: var(--fs-md); }
.qa-a { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 32px; align-items: start; }
.question-bar { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; margin-bottom: 24px; }
.answer-panel { position: relative; padding: 24px 24px 24px 32px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-card); }
.answer-panel::before { content: ""; position: absolute; left: 16px; top: 24px; bottom: 24px; width: 2px; background: var(--accent); }
.answer-panel h2 { margin-bottom: 16px; }
.answer-copy { color: var(--ink-2); font-size: var(--fs-md); line-height: 1.85; }
.answer-copy p + p { margin-top: 16px; }
.answer-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); }
.evidence-drawer { padding-left: 24px; border-left: 1px solid var(--line); }
.evidence-drawer > h2 { margin-bottom: 8px; font-size: var(--fs-md); }
.evidence-item { padding: 16px 0; border-bottom: 1px solid var(--line); }
.evidence-item h3 { margin-bottom: 6px; font-size: var(--fs-base); }
.evidence-item p { color: var(--ink-2); font-size: var(--fs-sm); }
.evidence-item .meta { margin-top: 8px; color: var(--ink-3); font-size: var(--fs-cap); }
.confidence { margin-top: 24px; }
.confidence-head { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 8px; color: var(--ink-2); font-size: var(--fs-sm); }
.confidence-track { position: relative; height: 6px; background: var(--sunken); border-radius: var(--r-ctl); }
.confidence-value { position: absolute; inset: 0 auto 0 0; width: var(--confidence); background: var(--accent); border-radius: var(--r-ctl); }
.confidence-threshold { position: absolute; left: 60%; top: -5px; width: 1px; height: 16px; background: var(--gold); }
.confidence-note { margin-top: 8px; color: var(--ink-3); font-size: var(--fs-cap); }
.qa-b { max-width: 900px; margin: 0 auto; }
.qa-b > h1 { margin-bottom: 12px; }
.qa-b > .lead { margin-bottom: 24px; color: var(--ink-2); }
.qa-b .answer-panel { padding-left: 32px; }
.inline-evidence { margin-top: 24px; }
.inline-evidence h2 { margin-bottom: 8px; font-size: var(--fs-md); }
.license-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); gap: 32px; align-items: start; }
.license-hero { padding: 24px 0 32px; border-top: 2px solid var(--gold); }
.license-hero h2 { margin: 12px 0 8px; font-size: var(--fs-xl); }
.license-number { margin: 24px 0; color: var(--gold); font-size: var(--fs-2xl); font-weight: 600; line-height: 1.2; }
.license-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 24px 0; }
.license-facts dt { color: var(--ink-3); font-size: var(--fs-sm); }
.license-facts dd { margin: 4px 0 0; font-weight: 500; }
.audit-timeline { list-style: none; margin-top: 16px; }
.audit-timeline li { display: grid; grid-template-columns: 144px minmax(0, 1fr); gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.audit-timeline time { color: var(--ink-3); font-size: var(--fs-sm); }
.audit-timeline h3 { margin-bottom: 4px; font-size: var(--fs-base); }
.audit-timeline p { color: var(--ink-2); font-size: var(--fs-sm); }
.license-band { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: center; padding: 24px 0 32px; border-top: 2px solid var(--gold); border-bottom: 1px solid var(--line); }
.license-band h2 { margin: 8px 0; font-size: var(--fs-xl); }
.license-band .license-number { margin: 8px 0 0; }
.recovery-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 32px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.recovery-flow section { padding: 24px; border-right: 1px solid var(--line); }
.recovery-flow section:last-child { border-right: 0; }
.recovery-flow h2 { margin-bottom: 8px; font-size: var(--fs-md); }
.recovery-flow p { color: var(--ink-2); font-size: var(--fs-sm); }
.cloud-b-lower { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.cloud-b-lower h2 { margin-bottom: 16px; font-size: var(--fs-md); }
.doc-shell { max-width: 1240px; margin: 0 auto; padding: 40px 32px 64px; }
.doc-head { padding-bottom: 32px; border-bottom: 1px solid var(--line-strong); }
.doc-head h1 { margin: 12px 0; }
.doc-head p { color: var(--ink-2); }
.doc-nav { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.doc-section { padding: 32px 0; border-bottom: 1px solid var(--line); }
.doc-section > h2 { margin-bottom: 16px; }
.direction-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.direction-compare article { padding-top: 16px; border-top: 2px solid var(--accent); }
.direction-compare h3 { margin-bottom: 8px; }
.direction-compare p { color: var(--ink-2); }
.token-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.token-item { padding-top: 12px; border-top: 1px solid var(--line); }
.swatch { height: 48px; margin-bottom: 8px; border: 1px solid var(--line); border-radius: var(--r-ctl); background: var(--swatch); }
.type-sample { padding: 16px 0; border-bottom: 1px solid var(--line); }
.component-lab { display: grid; gap: 24px; }
.component-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.matrix-note { margin: 16px 0; color: var(--ink-2); }
.page-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.page-cards a { min-height: 160px; display: flex; flex-direction: column; justify-content: space-between; padding: 16px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-card); }
.page-cards a:hover { border-color: var(--accent); background: var(--accent-soft); text-decoration: none; }
.page-cards strong { font-size: var(--fs-md); }
.page-cards span { color: var(--ink-2); font-size: var(--fs-sm); }
@media (max-width: 1180px) {
  .web-hero-a { grid-template-columns: 1fr 360px; gap: 32px; }
  .web-nav { gap: 16px; }
  .app-shell-a { grid-template-columns: 200px minmax(0, 1fr); }
  .app-main, .workspace-b { padding: 24px; }
  .duty-grid, .qa-a, .license-grid { grid-template-columns: 1fr; }
  .health-panel, .evidence-drawer { padding: 24px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .queue-layout { grid-template-columns: 1fr; }
  .context-panel { padding: 24px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .top-app-meta { display: none; }
  .page-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1180px) and (max-height: 800px) {
  .qa-b-page { padding-top: 20px; }
  .qa-b > h1 { margin-bottom: 8px; font-size: var(--fs-xl); }
  .qa-b > .lead, .qa-b .question-bar { margin-bottom: 12px; }
  .qa-b > .lead { font-size: var(--fs-sm); }
  .qa-b .answer-panel { padding-top: 16px; padding-bottom: 16px; }
  .qa-b .answer-copy { line-height: 1.7; }
  .qa-b .answer-copy p + p { margin-top: 12px; }
  .qa-b .inline-evidence, .qa-b .confidence { margin-top: 16px; }
  .qa-b .answer-actions { margin-top: 12px; padding-top: 8px; }
}
@media (max-width: 900px) {
  .web-nav a:not(.keep) { display: none; }
  .web-hero-a { min-height: 0; grid-template-columns: 1fr; padding-top: 48px; }
  .web-hero-a h1, .web-b-content > h1 { font-size: 44px; }
  .web-b-layout { grid-template-columns: 1fr; gap: 24px; }
  .chapter-rail { position: static; }
  .chapter-rail nav { display: flex; flex-wrap: wrap; }
  .chapter-rail a { border-left: 0; border-bottom: 2px solid transparent; }
  .chapter-rail a.active { border-bottom-color: var(--accent); }
  .top-app-bar { height: auto; min-height: 64px; flex-wrap: wrap; padding: 12px 24px; gap: 12px; }
  .top-app-nav { order: 3; width: 100%; overflow: hidden; }
  .process-strip { grid-template-columns: repeat(2, 1fr); }
  .process-strip div:nth-child(2) { border-right: 0; }
  .process-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .cloud-b-lower { grid-template-columns: 1fr; }
  .token-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .web-header-inner, .web-main { padding-left: 16px; padding-right: 16px; }
  .web-header-inner { gap: 16px; }
  .web-nav { gap: 8px; }
  .web-hero-a h1, .web-b-content > h1 { font-size: 36px; }
  .boundary-grid, .direction-compare, .download-band, .license-band { grid-template-columns: 1fr; }
  .install-steps, .recovery-flow { grid-template-columns: 1fr; }
  .recovery-flow section { border-right: 0; border-bottom: 1px solid var(--line); }
  .app-shell-a { grid-template-columns: 1fr; }
  .side-a { padding: 12px 16px; border-right: 0; border-bottom: 1px solid var(--line); }
  .side-a .brand { margin-bottom: 8px; }
  .workspace-name, .side-bottom { display: none; }
  .side-nav { display: flex; overflow: hidden; }
  .side-nav a, .side-nav button { width: auto; white-space: nowrap; }
  .side-nav a:not(.active), .side-nav button { display: none; }
  .app-topbar { padding: 0 16px; }
  .app-main, .workspace-b { padding: 24px 16px; }
  .page-head { flex-direction: column; }
  .question-bar { grid-template-columns: 1fr; }
  .license-facts { grid-template-columns: 1fr 1fr; }
  .queue-row { grid-template-columns: 1fr; gap: 8px; }
  .audit-timeline li { grid-template-columns: 1fr; gap: 4px; }
  .doc-shell { padding: 24px 16px; }
  .page-cards { grid-template-columns: 1fr; }
  th, td { padding: 12px 8px; }
}