:root {
  --ink: #0e2a47;
  --ink-deep: #081d32;
  --gold: #b18b45;
  --paper: #f7f5f0;
  --surface: #ffffff;
  --line: #d8d1c2;
  --text: #182536;
  --muted: #5d6774;
  --note: #eef2f5;
  --success: #345f54;
  --shadow: 0 18px 55px rgba(8, 29, 50, 0.08);
  --radius: 2px;
  --shell: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: min(calc(100% - 64px), var(--shell)); margin-inline: auto; }
.wide-shell { width: min(calc(100% - 64px), 1320px); }
.screen-only { display: block; }
.print-only { display: none; }

.skip-link { position: fixed; top: 12px; left: 12px; z-index: 1000; transform: translateY(-160%); padding: 10px 14px; background: #fff; color: var(--ink); border: 1px solid var(--ink); }
.skip-link:focus { transform: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 66px;
  color: #fff;
  background: rgba(8, 29, 50, 0.97);
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.header-inner { height: 100%; display: flex; align-items: center; gap: 32px; }
.brand { display: flex; align-items: center; gap: 13px; margin-right: auto; font-size: 14px; font-weight: 600; letter-spacing: .02em; white-space: nowrap; }
.brand img { width: 80px; height: 29px; object-fit: contain; background: white; padding: 2px 5px; }
nav { display: flex; align-items: center; gap: 23px; font-size: 13px; color: rgba(255,255,255,.78); }
nav a:hover, nav a:focus-visible { color: #fff; }
.print-button { min-height: 38px; padding: 0 15px; color: white; background: transparent; border: 1px solid rgba(255,255,255,.42); cursor: pointer; }
.print-button:hover, .print-button:focus-visible { background: white; color: var(--ink); }

.hero { padding: 76px 0 64px; background: var(--surface); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(48px, 7vw, 96px); align-items: center; }
.eyebrow { margin: 0 0 20px; color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: .18em; }
.eyebrow.light { color: #d9bb7e; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 24px; color: var(--ink-deep); font-size: clamp(42px, 4.6vw, 66px); line-height: 1.14; letter-spacing: -.045em; font-weight: 600; }
.hero-lead { max-width: 580px; margin-bottom: 34px; color: var(--muted); font-size: 19px; line-height: 1.75; }
.hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 23px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.hero-facts div { min-width: 0; }
.hero-facts strong { display: block; color: var(--ink); font-size: 19px; font-weight: 650; line-height: 1.3; font-variant-numeric: tabular-nums; }
.hero-facts span { display: block; margin-top: 7px; color: var(--muted); font-size: 12px; line-height: 1.4; }
.document-status { margin: 22px 0 0; color: var(--muted); font-size: 13px; }
.hero-visual { margin: 0; }
.hero-visual img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; box-shadow: var(--shadow); }
figure figcaption { margin-top: 10px; color: var(--muted); font-size: 12px; line-height: 1.55; }

.decision-bar { padding: 36px 0 42px; color: white; background: var(--ink-deep); }
.decision-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; }
.decision-list li { position: relative; min-height: 108px; padding: 5px 38px 4px 72px; border-left: 1px solid rgba(255,255,255,.18); }
.decision-list li:first-child { border-left: 0; }
.decision-list li > span { position: absolute; left: 30px; top: 3px; color: #d9bb7e; font-size: 12px; font-weight: 700; }
.decision-list strong { display: block; margin-bottom: 8px; font-size: 19px; font-weight: 600; }
.decision-list p { margin: 0; color: rgba(255,255,255,.68); font-size: 14px; }

.section { padding: 105px 0; border-bottom: 1px solid var(--line); }
.section-heading { grid-column: 1 / span 7; }
.section-heading.narrow { max-width: 790px; margin-bottom: 48px; }
.section-number { margin-bottom: 18px; color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: .13em; }
.section h2 { margin-bottom: 22px; color: var(--ink-deep); font-size: clamp(32px, 3.6vw, 48px); line-height: 1.25; letter-spacing: -.035em; font-weight: 600; }
.section-heading > p:last-child { color: var(--muted); font-size: 17px; }
.editorial-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 28px; }
.section-intro { grid-column: 8 / -1; align-self: end; padding-bottom: 8px; color: var(--muted); font-size: 17px; }
.value-points { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; margin-top: 30px; padding-top: 32px; border-top: 1px solid var(--line); }
.value-points article { padding-right: 22px; }
.value-points h3 { margin-bottom: 8px; color: var(--ink); font-size: 19px; }
.value-points p { margin: 0; color: var(--muted); }

.scope-section { background: var(--surface); }
.scope-layout { display: grid; grid-template-columns: minmax(0, 2fr) minmax(280px, .9fr); gap: 34px; align-items: stretch; }
.scope-main { padding: 42px 46px; background: var(--paper); border: 1px solid var(--line); }
.dimension span, .scope-split span { display: block; margin-bottom: 5px; color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.dimension strong { display: block; color: var(--ink); font-size: clamp(34px, 4vw, 54px); line-height: 1.25; font-variant-numeric: tabular-nums; }
.dimension small { color: var(--muted); }
.scope-rule { height: 1px; margin: 32px 0; background: var(--line); }
.scope-split { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.scope-split strong { display: block; color: var(--ink); font-size: 30px; font-variant-numeric: tabular-nums; }
.scope-split p { margin: 7px 0 0; color: var(--muted); font-size: 14px; }
.scope-note { padding: 40px 34px; color: white; background: var(--ink); }
.scope-note h3 { margin-bottom: 28px; font-size: 18px; }
.scope-note p { color: rgba(255,255,255,.72); }
.scope-note p strong { color: #fff; font-size: 27px; font-variant-numeric: tabular-nums; }
.fact-note { margin: 24px 0 0; color: var(--muted); font-size: 14px; }

.options-section { background: #f1eee8; }
.option-band { margin-top: 46px; }
.band-title { display: grid; grid-template-columns: 112px 1fr; gap: 26px; align-items: start; margin-bottom: 20px; }
.band-title > span { color: var(--gold); font-size: 34px; font-weight: 650; font-variant-numeric: tabular-nums; }
.band-title h3 { margin: 0; color: var(--ink); font-size: 23px; }
.band-title p { margin: 2px 0 0; color: var(--muted); font-size: 14px; }
.comparison-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.comparison-strip figure { margin: 0; background: var(--surface); border: 1px solid var(--line); }
.comparison-strip img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.comparison-strip figcaption { margin: 0; padding: 17px 18px 20px; }
.comparison-strip figcaption strong { display: block; color: var(--ink); font-size: 16px; }
.comparison-strip figcaption span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }
.image-disclaimer { margin: 28px 0 0; padding-top: 18px; color: var(--muted); border-top: 1px solid var(--line); font-size: 13px; }

.scheme-showcase { margin-top: 64px; padding-top: 34px; border-top: 1px solid var(--line); }
.scheme-showcase:first-of-type { margin-top: 28px; }
.scheme-header { display: grid; grid-template-columns: 54px 1fr; gap: 18px; align-items: start; margin-bottom: 22px; }
.scheme-header > span { display: grid; width: 40px; height: 40px; place-items: center; color: var(--gold); border: 1px solid var(--gold); font-size: 13px; font-weight: 700; }
.scheme-header h3 { margin: 0 0 4px; color: var(--ink); font-size: 28px; }
.scheme-header p { margin: 0; color: var(--muted); }
.scheme-visuals { display: grid; gap: 20px; }
.scheme-visuals.two-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.scheme-visuals figure, .scheme-open-state { margin: 0; background: var(--surface); border: 1px solid var(--line); }
.scheme-visuals img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.scheme-visuals figcaption { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin: 0; padding: 18px 20px 20px; }
.scheme-visuals figcaption > div { min-width: 0; }
.scheme-visuals figcaption strong, .scheme-open-state figcaption strong { display: block; color: var(--ink); font-size: 17px; }
.scheme-visuals figcaption span, .scheme-open-state figcaption span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }
.visual-price { flex: 0 0 auto; margin: 0; text-align: right; }
.visual-price span { font-size: 11px !important; }
.visual-price b { display: block; margin-top: 2px; color: var(--ink); font-size: 19px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.scheme-open-state { margin-top: 20px; }
.scheme-open-state img { width: 100%; aspect-ratio: 2.35 / 1; object-fit: cover; }
.scheme-open-state figcaption { display: grid; grid-template-columns: 150px 1fr; gap: 20px; margin: 0; padding: 17px 20px 19px; }

.mode-comparison { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.mode-comparison > article { padding: 38px 36px; border-left: 1px solid var(--line); }
.mode-comparison > article:first-child { border-left: 0; }
.mode-comparison .preferred { background: #f2eee4; }
.mode-index { margin-bottom: 14px; color: var(--gold); font-size: 13px; font-weight: 700; }
.mode-comparison h3 { margin-bottom: 8px; color: var(--ink); font-size: 25px; }
.mode-line { min-height: 56px; color: var(--muted); }
.mode-comparison dl { margin: 26px 0 0; }
.mode-comparison dl div { display: grid; grid-template-columns: 44px 1fr; gap: 12px; padding: 14px 0; border-top: 1px solid rgba(216,209,194,.8); }
.mode-comparison dt { color: var(--gold); font-size: 13px; font-weight: 700; }
.mode-comparison dd { margin: 0; color: var(--muted); font-size: 14px; }
.selection-note { display: grid; grid-template-columns: 130px 1fr; gap: 24px; margin-top: 28px; padding: 26px 30px; color: white; background: var(--ink); }
.selection-note strong { color: #dfc58d; }
.selection-note p { margin: 0; color: rgba(255,255,255,.78); }

.roof-detail-section { background: var(--surface); }
.roof-detail-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 52px; align-items: center; }
.roof-copy { display: grid; gap: 28px; }
.roof-copy article { padding-top: 28px; border-top: 1px solid var(--line); }
.roof-copy article:first-child { padding-top: 0; border-top: 0; }
.roof-copy h3 { margin-bottom: 10px; color: var(--ink); font-size: 23px; }
.roof-copy p, .roof-copy li { color: var(--muted); }
.roof-copy ul { margin: 16px 0 0; padding-left: 1.2em; }
.roof-copy li { margin: 5px 0; }
.open-state-visual { margin: 0; }
.open-state-visual img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border: 1px solid var(--line); }

.quote-section { background: #f1eee8; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--surface); }
.quote-table { width: 100%; min-width: 900px; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
.quote-table th { padding: 18px 20px; color: #fff; background: var(--ink); text-align: left; font-size: 13px; font-weight: 600; white-space: nowrap; }
.quote-table td { padding: 18px 20px; border-bottom: 1px solid #e8e3d8; vertical-align: middle; }
.quote-table tbody tr:nth-child(even) { background: #faf9f6; }
.quote-table tbody tr:last-child td { border-bottom: 0; }
.price-cell { color: var(--ink); font-weight: 650; white-space: nowrap; }
.status { color: var(--success); font-size: 12px; font-weight: 650; }
.table-note { margin: 18px 0 0; color: var(--muted); font-size: 13px; }

.timeline { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.timeline li { display: grid; grid-template-columns: 92px 1fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.timeline li > span { color: var(--gold); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
.timeline h3 { margin-bottom: 7px; color: var(--ink); font-size: 19px; }
.timeline p { margin: 0; max-width: 860px; color: var(--muted); }

.floor-section { background: var(--surface); }
.floor-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 28px; }
.floor-stack { grid-column: 8 / -1; display: flex; flex-direction: column; align-self: center; }
.floor-stack > div { padding: 17px 22px; color: #fff; background: var(--ink); border-top: 1px solid rgba(255,255,255,.15); }
.floor-stack > div:nth-child(2) { background: #173b5c; }
.floor-stack > div:nth-child(3) { color: var(--text); background: #c6c2ba; }
.floor-stack > div:nth-child(4) { color: var(--text); background: #e2ded6; }
.floor-stack span { display: block; font-size: 11px; opacity: .68; }
.floor-stack strong { display: block; font-size: 17px; }
.floor-stack p { margin: 2px 0 0; font-size: 12px; opacity: .72; }
.experience-row { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; margin-top: 34px; padding-top: 34px; border-top: 1px solid var(--line); }
.experience-row article > span { color: var(--gold); font-size: 12px; font-weight: 700; }
.experience-row h3 { margin: 7px 0; color: var(--ink); font-size: 18px; }
.experience-row p { margin: 0; color: var(--muted); }

.operation-section { background: #f1eee8; }
.operation-list { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.operation-list article { display: grid; grid-template-columns: 48px 1fr; gap: 14px; padding: 28px 30px; background: rgba(255,255,255,.48); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.operation-list article > span { color: var(--gold); font-size: 12px; font-weight: 700; }
.operation-list h3 { margin-bottom: 5px; color: var(--ink); font-size: 18px; }
.operation-list p { margin: 0; color: var(--muted); font-size: 14px; }

.review-section { color: white; background: var(--ink-deep); border-bottom: 0; }
.light-heading h2 { color: white; }
.light-heading > p:last-child { color: rgba(255,255,255,.65); }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.review-grid article { padding: 32px 34px; border-left: 1px solid rgba(255,255,255,.18); }
.review-grid article:first-child { border-left: 0; }
.review-grid h3 { color: #dfc58d; font-size: 18px; }
.review-grid ul { margin: 0; padding-left: 1.15em; color: rgba(255,255,255,.74); }
.review-grid li { margin: 8px 0; }
.next-actions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.next-actions div { padding: 22px; background: rgba(255,255,255,.06); }
.next-actions span { display: block; margin-bottom: 6px; color: #dfc58d; font-size: 12px; }
.next-actions strong { font-size: 16px; }

.detail-quote-section { background: var(--surface); }
.quote-source-strip { display: grid; grid-template-columns: 1.5fr .72fr .72fr .72fr; border: 1px solid var(--line); background: var(--paper); }
.quote-source-strip > div { min-height: 104px; padding: 23px 25px; border-left: 1px solid var(--line); }
.quote-source-strip > div:first-child { border-left: 0; }
.quote-source-strip span { display: block; margin-bottom: 8px; color: var(--gold); font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.quote-source-strip strong { display: block; color: var(--ink); font-size: 15px; line-height: 1.5; }
.quote-attention { display: grid; grid-template-columns: 160px 1fr; gap: 28px; margin-top: 22px; padding: 24px 28px; color: #fff; background: var(--ink); }
.quote-attention strong { color: #dfc58d; }
.quote-attention p { margin: 0; color: rgba(255,255,255,.78); font-size: 14px; }
.detail-block { margin-top: 76px; padding-top: 34px; border-top: 1px solid var(--line); }
.detail-block-heading { display: grid; grid-template-columns: 58px 1fr; gap: 20px; align-items: start; margin-bottom: 25px; }
.detail-block-heading > p { display: grid; width: 42px; height: 42px; place-items: center; margin: 0; color: var(--gold); border: 1px solid var(--gold); font-size: 12px; font-weight: 700; }
.detail-block-heading h3 { margin: 0 0 5px; color: var(--ink); font-size: 25px; line-height: 1.4; }
.detail-block-heading span { color: var(--muted); font-size: 14px; }
.detail-table { width: 100%; min-width: 900px; border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; }
.detail-table th { padding: 15px 16px; color: #fff; background: var(--ink); text-align: left; font-size: 12px; font-weight: 600; white-space: nowrap; }
.detail-table td { padding: 14px 16px; border-bottom: 1px solid #e8e3d8; vertical-align: top; }
.detail-table tbody tr:nth-child(even) { background: #faf9f6; }
.detail-table td:nth-last-child(1), .detail-table td:nth-last-child(3) { white-space: nowrap; }
.detail-table tfoot th { padding: 17px 16px; color: var(--ink); background: #ece7dc; border-top: 1px solid var(--line); font-size: 13px; }
.compact-table { min-width: 720px; }
.spec-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 22px; }
.spec-grid.two-column { grid-template-columns: repeat(2, 1fr); }
.spec-grid > div { padding: 22px 24px; background: var(--paper); border: 1px solid var(--line); }
.spec-grid strong { display: block; margin-bottom: 6px; color: var(--ink); font-size: 15px; }
.spec-grid p { margin: 0; color: var(--muted); font-size: 13px; }
.status.warning { color: #9a5d1c; }
.reconcile-note { margin: 19px 0 0; padding: 18px 20px; color: #69491f; background: #fbf4e6; border-left: 3px solid var(--gold); font-size: 13px; }
.payment-steps { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; list-style: none; border: 1px solid var(--line); }
.payment-steps li { padding: 26px 24px; border-left: 1px solid var(--line); }
.payment-steps li:first-child { border-left: 0; }
.payment-steps span { display: block; color: var(--gold); font-size: 28px; font-weight: 650; line-height: 1.2; }
.payment-steps strong { display: block; margin-top: 8px; color: var(--ink); font-size: 16px; }
.payment-steps p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.commercial-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 24px; background: var(--line); border: 1px solid var(--line); }
.commercial-grid > div { padding: 24px 26px; background: var(--paper); }
.commercial-grid h4 { margin: 0 0 7px; color: var(--ink); font-size: 16px; }
.commercial-grid p { margin: 0; color: var(--muted); font-size: 13px; }

.closing { padding: 70px 0; color: white; background: #061523; }
.closing-inner { display: grid; grid-template-columns: 170px 1fr; gap: 52px; align-items: center; }
.closing img { width: 150px; padding: 8px 10px; background: white; }
.closing h2 { margin-bottom: 12px; font-size: 32px; }
.closing p:last-child { max-width: 760px; margin: 0; color: rgba(255,255,255,.6); font-size: 13px; }
.site-footer { padding: 22px 0; color: var(--muted); background: var(--paper); font-size: 12px; }
.site-footer .shell { display: flex; justify-content: space-between; gap: 24px; }

@media (max-width: 980px) {
  .shell, .wide-shell { width: min(calc(100% - 40px), var(--shell)); }
  nav { display: none; }
  .hero-grid, .roof-detail-grid { grid-template-columns: 1fr; }
  .hero-visual { grid-row: 1; }
  .hero-copy { grid-row: 2; }
  .editorial-grid, .floor-grid { display: block; }
  .section-intro { margin-top: 24px; }
  .scope-layout { grid-template-columns: 1fr; }
  .quote-source-strip { grid-template-columns: repeat(2, 1fr); }
  .quote-source-strip > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .quote-source-strip > div:nth-child(4) { border-top: 1px solid var(--line); }
  .mode-comparison { grid-template-columns: 1fr; }
  .mode-comparison > article { border-left: 0; border-top: 1px solid var(--line); }
  .mode-comparison > article:first-child { border-top: 0; }
  .mode-line { min-height: 0; }
  .floor-stack { margin-top: 30px; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .shell, .wide-shell { width: calc(100% - 40px); }
  .site-header { height: 60px; }
  .brand span { display: none; }
  .print-button { margin-left: auto; font-size: 12px; }
  .hero { padding: 28px 0 54px; }
  .hero-grid { gap: 34px; }
  h1 { font-size: clamp(34px, 10.2vw, 44px); }
  .hero-lead { font-size: 17px; }
  .hero-facts { grid-template-columns: 1fr; }
  .hero-facts div { display: grid; grid-template-columns: 132px 1fr; align-items: baseline; gap: 12px; }
  .decision-bar { padding: 34px 0; }
  .decision-list { grid-template-columns: 1fr; }
  .decision-list li { min-height: 0; padding: 18px 0 18px 48px; border-left: 0; border-top: 1px solid rgba(255,255,255,.18); }
  .decision-list li:first-child { border-top: 0; }
  .decision-list li > span { left: 0; top: 19px; }
  .section { padding: 70px 0; }
  .section h2 { font-size: 31px; }
  .value-points, .scope-split, .experience-row, .operation-list, .review-grid, .next-actions { grid-template-columns: 1fr; }
  .value-points { gap: 26px; }
  .scope-main { padding: 30px 24px; }
  .scope-split { gap: 24px; }
  .scope-note { padding: 32px 26px; }
  .band-title { grid-template-columns: 1fr; gap: 4px; }
  .comparison-strip { display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; }
  .comparison-strip figure { flex: 0 0 84%; scroll-snap-align: start; }
  .scheme-visuals.two-up { grid-template-columns: 1fr; }
  .scheme-visuals figcaption { align-items: flex-start; }
  .scheme-open-state img { aspect-ratio: 16 / 9; }
  .selection-note { grid-template-columns: 1fr; gap: 8px; }
  .quote-source-strip, .spec-grid, .spec-grid.two-column, .payment-steps, .commercial-grid { grid-template-columns: 1fr; }
  .quote-source-strip > div, .quote-source-strip > div:nth-child(3), .quote-source-strip > div:nth-child(4), .payment-steps li { border-left: 0; border-top: 1px solid var(--line); }
  .quote-source-strip > div:first-child, .payment-steps li:first-child { border-top: 0; }
  .quote-attention { grid-template-columns: 1fr; gap: 8px; }
  .detail-block { margin-top: 56px; }
  .mode-comparison > article { padding: 32px 24px; }
  .timeline li { grid-template-columns: 48px 1fr; gap: 14px; }
  .operation-list { border-left: 1px solid var(--line); }
  .review-grid article { border-left: 0; border-top: 1px solid rgba(255,255,255,.18); }
  .review-grid article:first-child { border-top: 0; }
  .closing-inner { grid-template-columns: 1fr; gap: 30px; }
  .site-footer .shell { flex-direction: column; }
}

@page { size: A4; margin: 14mm 13mm 16mm; }

@media print {
  :root { --paper: #fff; --shadow: none; }
  html, body { background: #fff; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  body { font-size: 10.5pt; line-height: 1.58; }
  .screen-only, .skip-link { display: none !important; }
  .print-only { display: block; }
  .shell, .wide-shell { width: 100%; max-width: none; }
  .hero { min-height: 252mm; padding: 4mm 0 0; border: 0; page-break-after: always; }
  .hero-grid { grid-template-columns: 1fr; gap: 7mm; }
  .hero-visual { grid-row: 1; }
  .hero-copy { grid-row: 2; }
  h1 { margin-bottom: 4mm; font-size: 27pt; }
  .hero-lead { margin-bottom: 5mm; font-size: 11.5pt; }
  .hero-visual img { width: 100%; height: 78mm; aspect-ratio: auto; object-fit: cover; box-shadow: none; }
  .hero-visual figcaption { margin-top: 2mm; }
  .hero-facts { padding: 4mm 0; }
  .document-status { margin-top: 4mm; }
  .decision-bar { padding: 10mm 0; page-break-after: always; }
  .decision-list { grid-template-columns: repeat(3, 1fr); }
  .section { padding: 10mm 0; border-bottom: 0; }
  .section h2 { font-size: 22pt; }
  .section-heading.narrow { margin-bottom: 8mm; }
  .value-section, .scope-section, .options-section, .compare-section, .roof-detail-section, .quote-section, .delivery-section, .floor-section, .review-section, .detail-quote-section { break-before: page; }
  .options-section { background: #fff; }
  .scheme-showcase { margin-top: 7mm; padding-top: 5mm; break-inside: avoid; }
  .scheme-showcase:not(:first-of-type) { break-before: page; }
  .scheme-header { grid-template-columns: 10mm 1fr; gap: 4mm; margin-bottom: 4mm; }
  .scheme-header > span { width: 8mm; height: 8mm; }
  .scheme-header h3 { font-size: 18pt; }
  .scheme-visuals.two-up { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3mm; }
  .scheme-visuals figcaption { display: block; padding: 3mm; }
  .scheme-visuals figcaption strong { font-size: 10pt; }
  .scheme-visuals figcaption span { font-size: 8pt; }
  .visual-price { margin-top: 2.5mm; text-align: left; }
  .visual-price b { font-size: 11pt; }
  .scheme-open-state { margin-top: 3mm; }
  .scheme-open-state img { height: 52mm; aspect-ratio: auto; }
  .scheme-open-state figcaption { padding: 2.5mm 3mm; }
  .option-band { margin-top: 7mm; break-inside: avoid; }
  .comparison-strip { grid-template-columns: repeat(3, 1fr); gap: 3mm; }
  .comparison-strip figcaption { padding: 3mm; }
  .comparison-strip figcaption span { font-size: 8.5pt; }
  .compare-section .section-heading { margin-bottom: 5mm; }
  .mode-comparison, .roof-detail-grid, .quote-table, .timeline li, .floor-stack, .experience-row, .review-grid, figure, table { break-inside: avoid; }
  .mode-comparison { grid-template-columns: repeat(3, 1fr); }
  .mode-comparison > article { padding: 5mm 4mm; border-top: 0; border-left: 1px solid var(--line); }
  .mode-comparison > article:first-child { border-left: 0; }
  .mode-comparison h3 { font-size: 14pt; }
  .mode-line { min-height: 15mm; }
  .mode-comparison dl { margin-top: 4mm; }
  .mode-comparison dl div { grid-template-columns: 8mm 1fr; padding: 2.5mm 0; }
  .mode-comparison dd { font-size: 8.5pt; }
  .selection-note { margin-top: 4mm; padding: 4mm 5mm; }
  .quote-table { min-width: 0; font-size: 8pt; }
  .quote-table th, .quote-table td { padding: 3mm 2.5mm; }
  .quote-source-strip { grid-template-columns: 1.5fr .72fr .72fr .72fr; }
  .quote-source-strip > div, .quote-source-strip > div:nth-child(3), .quote-source-strip > div:nth-child(4) { min-height: 0; padding: 4mm; border-top: 0; border-left: 1px solid var(--line); }
  .quote-source-strip > div:first-child { border-left: 0; }
  .quote-attention { grid-template-columns: 34mm 1fr; gap: 4mm; margin-top: 4mm; padding: 4mm 5mm; }
  .detail-block { margin-top: 10mm; padding-top: 6mm; break-before: page; }
  .detail-block-heading { grid-template-columns: 10mm 1fr; gap: 4mm; margin-bottom: 4mm; }
  .detail-block-heading > p { width: 8mm; height: 8mm; }
  .detail-block-heading h3 { font-size: 16pt; }
  .detail-table { min-width: 0; font-size: 7.5pt; }
  .detail-table th, .detail-table td { padding: 2.5mm 2mm; }
  .detail-table tfoot th { padding: 3mm 2mm; }
  .detail-table thead { display: table-header-group; }
  .detail-table tr { break-inside: avoid; }
  .spec-grid, .spec-grid.two-column { grid-template-columns: repeat(3, 1fr); gap: 3mm; margin-top: 4mm; }
  .spec-grid.two-column { grid-template-columns: repeat(2, 1fr); }
  .spec-grid > div { padding: 3mm; }
  .reconcile-note { margin-top: 3mm; padding: 3mm 4mm; }
  .payment-steps { grid-template-columns: repeat(4, 1fr); }
  .payment-steps li { padding: 4mm; border-top: 0; border-left: 1px solid var(--line); }
  .payment-steps li:first-child { border-left: 0; }
  .commercial-grid { grid-template-columns: repeat(2, 1fr); margin-top: 4mm; }
  .commercial-grid > div { padding: 4mm; }
  .table-wrap { overflow: visible; }
  .roof-detail-grid { grid-template-columns: 1fr 1.1fr; gap: 8mm; }
  .timeline li { padding: 4mm 0; grid-template-columns: 15mm 1fr; }
  .review-grid, .next-actions { grid-template-columns: repeat(3, 1fr); }
  .closing { break-before: page; min-height: 250mm; padding-top: 70mm; }
  .print-footer { position: fixed; left: 13mm; right: 13mm; bottom: 5mm; color: #6d7480; font-size: 7.5pt; text-align: right; }
  a { text-decoration: none; }
}