:root {
  --ink: #10263b;
  --text: #2d4354;
  --muted: #627586;
  --blue: #2563eb;
  --orange: #f05a28;
  --teal: #2b7a78;
  --paper: #ffffff;
  --wash: #f3f6f8;
  --wash-blue: #f5f8ff;
  --line: #cbd5df;
  --grid: #e8edf1;
  --danger: #b5361c;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shell: min(1280px, calc(100vw - 64px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--text); font-family: var(--sans); font-size: 16px; line-height: 1.72; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
img, svg { max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(37, 99, 235, .34); outline-offset: 3px; }
::selection { background: #dce8ff; color: var(--ink); }

.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; background: var(--ink); color: #fff; padding: 10px 14px; }
.skip-link:focus { top: 12px; }
.page-shell { width: var(--shell); margin: 0 auto; }
.mono { font-family: var(--mono); }
.eyeline, .block-label, .table-note { display: block; font-family: var(--mono); color: var(--blue); font-size: 11px; font-weight: 700; letter-spacing: .08em; line-height: 1.45; text-transform: uppercase; }
.muted { color: var(--muted); }
.orange { color: var(--orange); }
.teal { color: var(--teal); }

/* shell */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.header-inner { width: var(--shell); min-height: 78px; margin: 0 auto; display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 28px; }
.brand { display: grid; grid-template-columns: 24px auto; grid-template-rows: auto auto; column-gap: 12px; align-items: center; text-decoration: none; color: var(--ink); }
.brand-mark { grid-row: 1 / 3; width: 24px; height: 24px; background: var(--ink); position: relative; }
.brand-mark::after { content: ""; position: absolute; width: 9px; height: 9px; left: 7px; top: 7px; background: var(--orange); }
.brand-name { font-weight: 800; font-size: 17px; line-height: 1.15; letter-spacing: .01em; }
.brand-note { font-family: var(--mono); color: var(--muted); font-size: 9px; letter-spacing: .08em; }
.site-nav { justify-self: end; display: flex; align-items: center; gap: 24px; }
.site-nav a { position: relative; padding: 27px 0 23px; color: var(--text); font-size: 13px; font-weight: 650; text-decoration: none; white-space: nowrap; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform .18s ease; }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
.menu-toggle { display: none; justify-self: end; width: 44px; height: 44px; border: 1px solid var(--line); background: #fff; color: var(--ink); }
.menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 20px; height: 2px; margin: 5px auto; background: currentColor; }

.site-footer { margin-top: 120px; background: var(--ink); color: #d8e2ea; }
.footer-inner { width: var(--shell); min-height: 250px; margin: 0 auto; padding: 58px 0; display: grid; grid-template-columns: 1.4fr 1fr; gap: 80px; }
.footer-title { margin: 0 0 12px; color: #fff; font-family: var(--serif); font-size: 30px; line-height: 1.25; }
.footer-copy { max-width: 690px; margin: 0; color: #aebdca; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); align-content: start; border-top: 1px solid #50677a; }
.footer-links a { padding: 14px 0; border-bottom: 1px solid #50677a; color: #fff; text-decoration: none; }

/* common */
.button-primary, .button-secondary, .button-quiet { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 0 20px; border: 1px solid var(--ink); border-radius: 0; font-weight: 760; font-size: 14px; text-decoration: none; cursor: pointer; }
.button-primary { background: var(--ink); color: #fff; }
.button-primary:hover { background: var(--blue); border-color: var(--blue); }
.button-secondary { background: #fff; color: var(--ink); }
.button-secondary:hover { color: var(--blue); border-color: var(--blue); }
.button-quiet { min-height: 40px; padding: 0 14px; background: var(--wash); border-color: var(--line); color: var(--text); }
.button-quiet:hover { background: #fff; border-color: var(--blue); }
.arrow { font-family: var(--mono); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.page-intro { padding: 88px 0 52px; border-bottom: 2px solid var(--ink); display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(320px, .7fr); gap: 72px; align-items: end; }
.page-intro h1 { margin: 12px 0 0; max-width: 850px; color: var(--ink); font-family: var(--serif); font-size: clamp(44px, 5.2vw, 76px); line-height: 1.05; letter-spacing: -.035em; }
.page-intro p { margin: 0; color: var(--muted); font-size: 17px; }
.section-head { margin-bottom: 36px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 430px); gap: 60px; align-items: end; }
.section-head h2 { margin: 8px 0 0; color: var(--ink); font-family: var(--serif); font-size: clamp(34px, 4.2vw, 58px); line-height: 1.1; letter-spacing: -.025em; }
.section-head p { margin: 0; color: var(--muted); }
.content-section { padding: 92px 0 0; }
.rule-section { border-top: 1px solid var(--line); }
.callout { margin: 42px 0; padding: 28px 32px; border-left: 4px solid var(--orange); background: var(--wash); }
.callout h3 { margin: 0 0 8px; color: var(--ink); }
.callout p:last-child { margin-bottom: 0; }
.note-strip { display: flex; gap: 20px; align-items: flex-start; padding: 18px 20px; border: 1px solid var(--line); background: #fff; }
.note-strip > strong { flex: 0 0 120px; color: var(--ink); }

/* homepage */
.home-hero { min-height: 590px; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(560px, .92fr); gap: 60px; align-items: center; padding: 66px 0 52px; }
.home-hero > * { min-width: 0; }
.home-hero h1 { margin: 24px 0 22px; color: var(--ink); font-family: var(--serif); font-size: clamp(52px, 4.5vw, 68px); font-weight: 700; line-height: 1.02; letter-spacing: -.045em; }
.home-hero h1::after { content: ""; display: block; width: 72px; height: 4px; margin-top: 24px; background: var(--orange); }
.hero-copy { max-width: 620px; margin: 0; color: #50677a; font-size: 19px; line-height: 1.7; }
.hero-metrics { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 13px 30px; font-family: var(--mono); color: var(--muted); font-size: 10px; letter-spacing: .08em; }
.decision-canvas { width: 100%; min-width: 0; position: relative; padding: 18px 0 0; background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 32px 32px; }
.canvas-head { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 15px; border-bottom: 2px solid var(--ink); font-family: var(--mono); color: var(--blue); font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.canvas-head span:last-child { color: var(--muted); }
.decision-path { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; padding: 36px 0 30px; }
.decision-node { min-height: 64px; position: relative; display: grid; place-items: center; padding: 10px; border: 1px solid var(--ink); background: #fff; color: var(--ink); text-align: center; font-size: 12px; font-weight: 750; }
.decision-node:not(:last-child)::after { content: "→"; position: absolute; right: -20px; color: var(--blue); font-family: var(--mono); }
.trust-board { margin-top: 4px; padding: 26px 24px 22px; border: 1px dashed var(--line); background: rgba(248, 250, 251, .94); }
.trust-board-title { font-family: var(--mono); color: var(--muted); font-size: 10px; letter-spacing: .08em; }
.trust-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: center; margin: 24px 0; }
.trust-flow span { min-height: 54px; position: relative; display: grid; place-items: center; border: 1px solid var(--blue); background: #fff; color: var(--ink); text-align: center; font-size: 12px; font-weight: 700; }
.trust-flow span:not(:last-child)::after { content: ""; position: absolute; right: -18px; width: 18px; height: 2px; background: var(--teal); }
.canvas-ledger { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding-top: 18px; border-top: 1px solid var(--line); font-family: var(--mono); color: var(--muted); font-size: 9px; }
.canvas-ledger b { display: block; margin-top: 5px; color: var(--teal); font-size: 10px; }
.decision-gate { width: 230px; margin: 18px 0 0 auto; padding: 12px 16px; background: var(--orange); color: #fff; display: flex; justify-content: space-between; align-items: center; font-weight: 800; font-size: 13px; }
.decision-gate small { font-family: var(--mono); font-weight: 700; font-size: 9px; letter-spacing: .08em; }

.capability-band { border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.capability-label { padding: 20px 0 12px; font-family: var(--mono); color: var(--muted); font-size: 10px; letter-spacing: .08em; }
.capability-rail { display: grid; grid-template-columns: repeat(9, 1fr); }
.capability-rail a { min-height: 106px; padding: 18px 12px 16px 0; border-top: 1px solid var(--line); border-right: 1px solid var(--line); text-decoration: none; transition: background .15s ease; }
.capability-rail a:last-child { border-right: 0; }
.capability-rail a:hover { background: var(--wash-blue); }
.capability-rail span { display: block; color: var(--blue); font-family: var(--mono); font-size: 12px; }
.capability-rail strong { display: block; margin-top: 16px; color: var(--ink); font-size: 13px; line-height: 1.35; }

.principles { padding: 82px 0; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.principle-grid article { min-height: 185px; padding: 28px 34px 12px 0; border-right: 1px solid var(--line); }
.principle-grid article:not(:first-child) { padding-left: 34px; }
.principle-grid article:last-child { border-right: 0; }
.principle-grid h3 { margin: 18px 0 8px; color: var(--ink); font-size: 21px; }
.principle-grid p { margin: 0; color: var(--muted); }
.domain-ledger { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 2px solid var(--ink); }
.domain-ledger article { min-height: 200px; padding: 26px 28px 24px 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); scroll-margin-top: 110px; }
.domain-ledger article:nth-child(3n+2), .domain-ledger article:nth-child(3n+3) { padding-left: 28px; }
.domain-ledger article:nth-child(3n) { border-right: 0; }
.domain-ledger h3 { margin: 14px 0 8px; color: var(--ink); font-size: 20px; }
.domain-ledger p { margin: 7px 0; color: var(--muted); font-size: 13px; }
.domain-ledger .domain-evidence { color: var(--teal); }

.evidence-chain { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--ink); }
.evidence-chain > div { min-height: 150px; position: relative; padding: 24px 22px; border-right: 1px solid var(--line); }
.evidence-chain > div:last-child { border-right: 0; }
.evidence-chain > div:not(:last-child)::after { content: "→"; position: absolute; right: -10px; top: 59px; z-index: 2; width: 20px; background: #fff; color: var(--blue); text-align: center; font-family: var(--mono); }
.evidence-chain span { font-family: var(--mono); color: var(--blue); font-size: 10px; }
.evidence-chain h3 { margin: 16px 0 8px; color: var(--ink); font-size: 16px; }
.evidence-chain p { margin: 0; color: var(--muted); font-size: 13px; }

.stage-list { border-top: 2px solid var(--ink); }
.stage-row { display: grid; grid-template-columns: 82px 260px minmax(0, 1fr); gap: 36px; padding: 40px 0; border-bottom: 1px solid var(--line); }
.stage-index { color: var(--blue); font-family: var(--mono); font-size: 42px; line-height: 1; }
.stage-copy h3 { margin: 8px 0 8px; color: var(--ink); font-family: var(--serif); font-size: 28px; line-height: 1.2; }
.stage-copy p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.stage-output { color: var(--teal); font-family: var(--mono); font-size: 10px; }
.stage-chapters { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.stage-chapters a { display: grid; grid-template-columns: 34px 1fr 16px; gap: 8px; padding: 14px 10px 12px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); font-size: 13px; }
.stage-chapters a:nth-child(odd) { border-right: 1px solid var(--line); }
.stage-chapters a:nth-child(even) { padding-left: 14px; }
.chapter-num { color: var(--blue); font-family: var(--mono); font-size: 10px; }
.progress-dot { width: 11px; height: 11px; margin-top: 5px; border: 1px solid var(--line); }
.progress-dot.is-done { border-color: var(--teal); background: var(--teal); }

.role-matrix { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.role-matrix article { padding: 24px 24px 24px 0; border-right: 1px solid var(--line); }
.role-matrix article:not(:first-child) { padding-left: 24px; }
.role-matrix article:last-child { border-right: 0; }
.role-matrix h3 { margin: 10px 0; color: var(--ink); font-size: 16px; }
.role-matrix p { margin: 0; color: var(--muted); font-size: 13px; }

/* roadmap */
.route-controls { padding: 26px 0; display: flex; justify-content: space-between; gap: 20px; align-items: center; border-bottom: 1px solid var(--line); }
.route-progress { display: flex; gap: 16px; align-items: center; }
.route-progress strong { color: var(--ink); font-family: var(--mono); font-size: 12px; }
.progress-track { width: 260px; height: 8px; background: var(--grid); }
.progress-track span { display: block; height: 100%; width: 0; background: var(--blue); }
.roadmap-stage { display: grid; grid-template-columns: 100px minmax(260px, .7fr) minmax(0, 1.3fr); gap: 34px; padding: 52px 0; border-bottom: 1px solid var(--line); }
.roadmap-stage .stage-index { font-size: 54px; }
.roadmap-stage h2 { margin: 8px 0 10px; color: var(--ink); font-family: var(--serif); font-size: 34px; line-height: 1.18; }
.roadmap-stage p { color: var(--muted); }
.roadmap-table { width: 100%; border-collapse: collapse; table-layout: fixed; }
.roadmap-table th, .roadmap-table td { padding: 12px 14px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 13px; }
.roadmap-table th { width: 110px; color: var(--muted); font-family: var(--mono); font-size: 10px; }
.roadmap-table a { display: inline-block; margin: 0 10px 5px 0; color: var(--ink); text-decoration: none; }
.roadmap-table a:hover { color: var(--blue); text-decoration: underline; }
.bridge-check { margin: 0 0 0 100px; padding: 22px 26px; border-left: 4px solid var(--orange); background: var(--wash); display: grid; grid-template-columns: 210px 1fr; gap: 28px; }
.bridge-check h3 { margin: 0; color: var(--ink); }
.bridge-check p { margin: 0; }

/* diagnostic */
.diagnostic-shell { padding-top: 64px; display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: 60px; }
.diagnostic-aside { position: sticky; top: 112px; align-self: start; padding: 26px; background: var(--ink); color: #d8e2ea; }
.diagnostic-aside h2 { margin: 10px 0 12px; color: #fff; font-family: var(--serif); font-size: 30px; line-height: 1.2; }
.score-display { margin-top: 26px; padding-top: 20px; border-top: 1px solid #50677a; }
.score-display strong { display: block; color: #fff; font-family: var(--mono); font-size: 42px; line-height: 1; }
.score-display span { font-size: 12px; color: #9fb0bd; }
.diagnostic-question { padding: 0 0 46px; margin-bottom: 42px; border-bottom: 1px solid var(--line); }
.diagnostic-question h3 { margin: 10px 0 20px; color: var(--ink); font-size: 22px; }
.option-grid { display: grid; gap: 10px; }
.diagnostic-option { display: grid; grid-template-columns: 24px 1fr; gap: 12px; padding: 14px 16px; border: 1px solid var(--line); background: #fff; cursor: pointer; }
.diagnostic-option:hover { border-color: var(--blue); }
.diagnostic-option:has(input:checked) { border-color: var(--blue); background: var(--wash-blue); }
.diagnostic-option input { width: 18px; height: 18px; accent-color: var(--blue); }
.diagnostic-result { margin-top: 44px; padding: 36px; border: 2px solid var(--ink); }
.diagnostic-result h2 { margin: 0 0 12px; color: var(--ink); font-family: var(--serif); font-size: 34px; }
.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 28px; border-top: 1px solid var(--line); }
.result-grid article { padding: 20px 20px 0 0; border-right: 1px solid var(--line); }
.result-grid article:not(:first-child) { padding-left: 20px; }
.result-grid article:last-child { border-right: 0; }
.result-grid h3 { color: var(--ink); }

/* tables / filters */
.filter-bar { position: sticky; top: 78px; z-index: 20; display: flex; flex-wrap: wrap; gap: 12px; padding: 18px 0; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); }
.search-input, .filter-select { min-height: 44px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 0; background: #fff; color: var(--ink); }
.search-input { flex: 1 1 280px; }
.filter-select { flex: 0 1 220px; }
.data-table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--line); }
.data-table { width: 100%; min-width: 880px; border-collapse: collapse; table-layout: fixed; }
.data-table th, .data-table td { padding: 14px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th:last-child, .data-table td:last-child { border-right: 0; }
.data-table tr:last-child td { border-bottom: 0; }
.data-table thead th { position: sticky; top: 0; z-index: 1; background: var(--ink); color: #fff; font-family: var(--mono); font-size: 10px; letter-spacing: .06em; }
.data-table tbody th { color: var(--ink); font-size: 13px; }
.data-table td { font-size: 13px; }
.data-table tbody tr:hover { background: var(--wash-blue); }

/* templates */
.template-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 48px; padding-top: 52px; }
.template-index { position: sticky; top: 118px; align-self: start; border-top: 2px solid var(--ink); }
.template-index button { width: 100%; padding: 12px 4px; border: 0; border-bottom: 1px solid var(--line); background: #fff; color: var(--text); text-align: left; cursor: pointer; }
.template-index button:hover, .template-index button.is-active { color: var(--blue); background: var(--wash-blue); }
.template-card { margin-bottom: 42px; border: 1px solid var(--line); }
.template-card header { display: flex; justify-content: space-between; gap: 20px; align-items: center; padding: 20px 24px; border-bottom: 1px solid var(--line); }
.template-card h2 { margin: 0; color: var(--ink); font-size: 22px; }
.template-actions { display: flex; gap: 8px; }
.template-code { position: relative; margin: 0; padding: 26px; overflow: auto; background: #10263b; color: #d8e2ea; font-family: var(--mono); font-size: 12px; line-height: 1.75; white-space: pre-wrap; }
.template-note { padding: 18px 24px; background: var(--wash); color: var(--muted); font-size: 13px; }

/* glossary */
.glossary-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.term-card { padding: 24px; background: #fff; }
.term-card h2 { display: flex; justify-content: space-between; gap: 14px; margin: 0 0 12px; color: var(--ink); font-size: 20px; }
.term-card h2 small { color: var(--blue); font-family: var(--mono); font-size: 9px; font-weight: 600; }
.term-card p { margin: 8px 0; font-size: 14px; }
.term-card dl { display: grid; grid-template-columns: 80px 1fr; gap: 6px 14px; margin: 16px 0 0; padding-top: 14px; border-top: 1px solid var(--line); font-size: 12px; }
.term-card dt { color: var(--muted); font-family: var(--mono); }
.term-card dd { margin: 0; }
.source-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 36px; }
.source-item { padding: 14px 0; border-bottom: 1px solid var(--line); }
.source-item a { color: var(--ink); font-weight: 700; }
.source-item p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }

/* career */
.portfolio-chain { display: grid; grid-template-columns: repeat(5, 1fr); margin-top: 36px; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.portfolio-chain article { min-height: 170px; padding: 24px 18px 20px 0; border-right: 1px solid var(--line); }
.portfolio-chain article:not(:first-child) { padding-left: 18px; }
.portfolio-chain article:last-child { border-right: 0; }
.portfolio-chain h3 { color: var(--ink); font-size: 16px; }
.job-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.job-card { padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.job-card:nth-child(3n) { border-right: 0; }
.job-card h3 { margin: 8px 0; color: var(--ink); }
.job-card p { color: var(--muted); font-size: 13px; }
.interview-list { border-top: 2px solid var(--ink); }
.interview-item { display: grid; grid-template-columns: 70px minmax(220px, .6fr) minmax(0, 1.4fr); gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.interview-item > span { color: var(--blue); font-family: var(--mono); }
.interview-item h3 { margin: 0; color: var(--ink); }
.interview-item p { margin: 0; }
.answer-framework { display: grid; grid-template-columns: repeat(9, 1fr); margin-top: 32px; border: 1px solid var(--ink); }
.answer-framework span { min-height: 94px; position: relative; padding: 16px 10px; border-right: 1px solid var(--line); color: var(--ink); font-size: 12px; font-weight: 700; }
.answer-framework span:last-child { border-right: 0; }
.answer-framework span:not(:last-child)::after { content: "→"; position: absolute; right: -9px; z-index: 2; width: 18px; background: #fff; color: var(--blue); text-align: center; }

/* customer-facing soft skills guide */
.soft-page-intro h1 { max-width: 920px; }
.soft-page-intro .hero-actions { margin-top: 28px; }
.soft-metrics { display: grid; grid-template-columns: repeat(5, 1fr); border-bottom: 2px solid var(--ink); }
.soft-metrics > div { min-height: 112px; padding: 24px 22px 18px 0; border-right: 1px solid var(--line); }
.soft-metrics > div:not(:first-child) { padding-left: 22px; }
.soft-metrics > div:last-child { border-right: 0; }
.soft-metrics strong { display: block; color: var(--ink); font-family: var(--serif); font-size: 38px; line-height: 1; }
.soft-metrics span { display: block; margin-top: 11px; color: var(--blue); font-family: var(--mono); font-size: 9px; letter-spacing: .08em; }
.soft-layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 48px; padding-top: 58px; }
.soft-toc { position: sticky; top: 112px; align-self: start; max-height: calc(100vh - 136px); overflow: auto; padding: 20px; border-top: 2px solid var(--ink); background: var(--wash); }
.soft-toc ol { margin: 16px 0 0; padding: 0; list-style: none; }
.soft-toc a { display: block; padding: 8px 0; color: var(--muted); font-size: 11px; text-decoration: none; }
.soft-toc a:hover, .soft-toc a.is-active { color: var(--blue); font-weight: 750; }
.soft-toc-progress { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); }
.soft-toc-progress > strong { display: block; color: var(--ink); font-family: var(--mono); font-size: 12px; }
.soft-toc-progress .progress-track { width: 100%; margin: 8px 0; }
.soft-toc-progress small { color: var(--muted); font-size: 10px; }
.soft-main { min-width: 0; }
.soft-section { padding: 0 0 80px; margin-bottom: 72px; border-bottom: 1px solid var(--line); scroll-margin-top: 110px; }
.soft-section:last-child { border-bottom: 0; }
.soft-section > h2, .soft-section-head h2 { max-width: 970px; margin: 12px 0 22px; color: var(--ink); font-family: var(--serif); font-size: clamp(36px, 4.2vw, 56px); line-height: 1.1; letter-spacing: -.025em; }
.soft-section > h3 { margin: 52px 0 16px; color: var(--ink); font-size: 24px; }
.soft-section > p { max-width: 870px; }
.soft-lead { color: var(--ink); font-family: var(--serif); font-size: 24px; line-height: 1.65; }
.soft-figure .figure-frame { margin-top: 28px; }
.soft-principles { display: grid; grid-template-columns: repeat(5, 1fr); margin: 36px 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.soft-principles article { min-height: 190px; padding: 24px 20px 20px 0; border-right: 1px solid var(--line); }
.soft-principles article:not(:first-child) { padding-left: 20px; }
.soft-principles article:last-child { border-right: 0; }
.soft-principles span, .soft-stage-number { color: var(--blue); font-family: var(--mono); }
.soft-principles h3 { margin: 16px 0 8px; color: var(--ink); font-size: 17px; }
.soft-principles p { margin: 0; color: var(--muted); font-size: 12px; }
.soft-levels { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 32px; background: var(--line); border: 1px solid var(--line); }
.soft-levels article { min-height: 150px; padding: 22px; background: #fff; }
.soft-levels span { color: var(--blue); font-family: var(--mono); font-size: 11px; font-weight: 750; }
.soft-levels h3 { margin: 12px 0 7px; color: var(--ink); font-size: 17px; }
.soft-levels p { margin: 0; color: var(--muted); font-size: 12px; }
.soft-domain-rail { display: grid; grid-template-columns: repeat(4, 1fr); margin: 30px 0; border: 1px solid var(--ink); }
.soft-domain-rail a { min-height: 110px; padding: 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-decoration: none; }
.soft-domain-rail a:nth-child(4n) { border-right: 0; }
.soft-domain-rail a:nth-last-child(-n+4) { border-bottom: 0; }
.soft-domain-rail a:hover { background: var(--wash-blue); }
.soft-domain-rail span, .soft-domain-rail small { display: block; color: var(--blue); font-family: var(--mono); font-size: 9px; }
.soft-domain-rail strong { display: block; margin: 12px 0 4px; color: var(--ink); font-size: 14px; }
.soft-domain-rail small { color: var(--muted); }
.soft-capability-table { min-width: 1260px; table-layout: auto; }
.soft-capability-table th:first-child { width: 260px; }
.soft-capability-table td { min-width: 190px; }
.soft-capability-table td:last-child { min-width: 330px; }
.soft-capability-table tbody tr { scroll-margin-top: 108px; }
.soft-capability-table tbody th > strong { display: block; margin: 9px 0 5px; color: var(--ink); font-size: 16px; }
.soft-capability-table tbody th > small { display: block; color: var(--teal); line-height: 1.5; }
.soft-capability-table tbody th > p { color: var(--muted); font-weight: 400; }
.soft-capability-table p { margin: 0 0 10px; }
.soft-section-head { display: flex; justify-content: space-between; gap: 40px; align-items: end; }
.soft-route-progress { flex: 0 0 160px; margin-bottom: 26px; padding-left: 20px; border-left: 3px solid var(--orange); }
.soft-route-progress strong { display: block; color: var(--ink); font-family: var(--serif); font-size: 30px; }
.soft-route-progress span { color: var(--muted); font-family: var(--mono); font-size: 9px; }
.soft-stage-list { margin-top: 34px; border-top: 2px solid var(--ink); }
.soft-stage { display: grid; grid-template-columns: 64px minmax(230px, .7fr) minmax(0, 1.3fr); gap: 30px; padding: 38px 0; border-bottom: 1px solid var(--line); }
.soft-stage-number { font-size: 34px; }
.soft-stage-copy h3 { margin: 10px 0 8px; color: var(--ink); font-family: var(--serif); font-size: 28px; line-height: 1.2; }
.soft-stage-copy p { margin: 8px 0; color: var(--muted); font-size: 13px; }
.soft-stage-copy .soft-bridge { color: var(--teal); }
.soft-stage-work { min-width: 0; }
.soft-practice-check { display: grid; grid-template-columns: 24px 1fr; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--ink); cursor: pointer; }
.soft-practice-check input { width: 18px; height: 18px; margin-top: 4px; accent-color: var(--teal); }
.soft-practice-check:has(input:checked) span { color: var(--teal); text-decoration: line-through; text-decoration-thickness: 1px; }
.soft-stage-output { display: flex; gap: 12px; margin-top: 15px; font-size: 12px; }
.soft-stage-output strong { flex: 0 0 72px; color: var(--ink); }
.soft-stage-output span { color: var(--muted); }
.soft-pass { margin: 12px 0 0; padding: 10px 12px; background: var(--wash); font-size: 12px; }
.soft-practice-chain { display: grid; grid-template-columns: repeat(6, 1fr); margin: 32px 0 50px; border: 1px solid var(--ink); }
.soft-practice-chain article { min-height: 170px; position: relative; padding: 20px 16px; border-right: 1px solid var(--line); }
.soft-practice-chain article:last-child { border-right: 0; }
.soft-practice-chain article:not(:last-child)::after { content: "→"; position: absolute; top: 67px; right: -9px; z-index: 1; width: 18px; background: #fff; color: var(--blue); font-family: var(--mono); text-align: center; }
.soft-practice-chain span { color: var(--blue); font-family: var(--mono); font-size: 10px; }
.soft-practice-chain h3 { margin: 16px 0 8px; color: var(--ink); font-size: 16px; }
.soft-practice-chain p { margin: 0; color: var(--muted); font-size: 12px; }
.scenario-lab { margin: 40px 0; border: 2px solid var(--ink); }
.scenario-lab > header { display: flex; justify-content: space-between; gap: 24px; align-items: center; padding: 24px; border-bottom: 1px solid var(--line); }
.scenario-lab h3 { margin: 8px 0 0; color: var(--ink); font-size: 22px; }
.scenario-lab > header > div:last-child { display: flex; flex-wrap: wrap; gap: 8px; }
.scenario-output { display: grid; grid-template-columns: repeat(3, 1fr); }
.scenario-output article { min-height: 180px; padding: 24px; border-right: 1px solid var(--line); }
.scenario-output article:last-child { border-right: 0; }
.scenario-output span { color: var(--blue); font-family: var(--mono); font-size: 9px; font-weight: 750; }
.scenario-output p { margin: 16px 0 0; color: var(--ink); font-family: var(--serif); font-size: 18px; line-height: 1.6; }
.scenario-lab > footer { padding: 18px 24px; background: var(--wash); }
.soft-role-table, .soft-signal-table { min-width: 860px; }
.soft-timeline { margin: 28px 0; padding: 0; list-style: none; border-top: 2px solid var(--ink); }
.soft-timeline li { display: grid; grid-template-columns: 110px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.soft-timeline li > span { color: var(--blue); font-family: var(--mono); font-size: 11px; }
.soft-timeline h3 { margin: 0 0 6px; color: var(--ink); font-size: 16px; }
.soft-timeline p { margin: 0; color: var(--muted); font-size: 13px; }
.soft-trace-list { border-top: 2px solid var(--ink); }
.soft-trace-list article { display: grid; grid-template-columns: 46px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.soft-trace-list article > span { color: var(--blue); font-family: var(--mono); }
.soft-trace-list h4 { margin: 0 0 14px; color: var(--ink); font-size: 17px; }
.soft-trace-list p { margin: 9px 0; padding: 12px 14px; font-size: 13px; }
.soft-weak { border-left: 3px solid var(--orange); background: #fff7f3; }
.soft-strong { border-left: 3px solid var(--teal); background: #f3fbf9; }
.soft-recovery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.soft-recovery-grid article { padding: 22px; background: #fff; }
.soft-recovery-grid h4 { margin: 0 0 10px; color: var(--ink); font-size: 16px; }
.soft-recovery-grid p { margin: 8px 0; font-size: 13px; }
.soft-rubric-shell { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 28px; margin-top: 34px; }
.soft-score-panel { position: sticky; top: 112px; align-self: start; padding: 24px; background: var(--ink); color: #d8e2ea; }
.soft-score-panel > strong { display: block; margin: 10px 0 2px; color: #fff; font-family: var(--serif); font-size: 56px; line-height: 1; }
.soft-score-panel > span { color: #9fb0bd; font-size: 11px; }
.soft-score-panel p { min-height: 74px; color: #d8e2ea; font-size: 12px; }
.soft-rubric-table { min-width: 780px; }
.soft-rubric-table th:first-child { width: 220px; }
.soft-rubric-table .filter-select { width: 180px; }
.critical-mark { display: block; width: max-content; margin-top: 5px; padding: 2px 6px; background: var(--orange); color: #fff; font-family: var(--mono); font-size: 8px; }
.soft-stuck { margin: 34px 0; padding: 26px; border: 1px solid var(--line); background: var(--wash-blue); }
.soft-stuck h3 { margin: 0 0 12px; color: var(--ink); }
.soft-stuck p { margin: 9px 0; }
.soft-template-grid { border-top: 2px solid var(--ink); }
.soft-template { border-bottom: 1px solid var(--line); }
.soft-template summary { display: flex; justify-content: space-between; gap: 24px; padding: 20px 4px; cursor: pointer; list-style: none; }
.soft-template summary::-webkit-details-marker { display: none; }
.soft-template summary > span:first-child { display: grid; grid-template-columns: 110px 260px 1fr; gap: 16px; align-items: center; }
.soft-template summary small { color: var(--blue); font-family: var(--mono); font-size: 9px; }
.soft-template summary strong { color: var(--ink); }
.soft-template summary em { color: var(--muted); font-size: 12px; font-style: normal; }
.soft-template summary > span:last-child { color: var(--blue); font-size: 24px; }
.soft-template[open] summary > span:last-child { transform: rotate(45deg); }
.soft-template-body { padding: 0 0 26px; }
.soft-template-action { display: flex; justify-content: flex-end; margin-bottom: 8px; }
.soft-template pre { max-height: 480px; margin: 0; padding: 24px; overflow: auto; background: var(--ink); color: #d8e2ea; font-family: var(--mono); font-size: 12px; line-height: 1.7; white-space: pre-wrap; }
.soft-source-head { margin-top: 76px; }

/* benchmark */
.benchmark-header { padding: 68px 0 36px; border-bottom: 2px solid var(--ink); }
.benchmark-header h1 { margin: 16px 0 16px; max-width: 1120px; color: var(--ink); font-family: var(--serif); font-size: clamp(42px, 5.5vw, 72px); line-height: 1.06; letter-spacing: -.035em; }
.benchmark-subtitle { max-width: 900px; margin: 0; color: var(--muted); font-size: 18px; }
.review-status { display: flex; flex-wrap: wrap; gap: 16px 26px; align-items: center; margin-top: 28px; }
.status-badge { padding: 12px 18px; background: var(--orange); color: #fff; font-weight: 800; }
.review-ledger { font-family: var(--mono); color: var(--muted); font-size: 11px; letter-spacing: .06em; }
.benchmark-shell { display: grid; grid-template-columns: 210px minmax(0, 1fr) 250px; gap: 36px; padding-top: 44px; }
.benchmark-toc, .benchmark-aside { position: sticky; top: 112px; align-self: start; }
.benchmark-toc { padding: 20px; background: var(--wash); }
.benchmark-toc ol { list-style: none; margin: 18px 0 0; padding: 0; }
.benchmark-toc a { display: block; padding: 8px 0; color: var(--text); font-size: 12px; text-decoration: none; }
.benchmark-toc a:hover, .benchmark-toc a.is-active { color: var(--blue); font-weight: 700; }
.benchmark-aside { padding: 22px; background: var(--ink); color: #d8e2ea; }
.benchmark-aside h3 { margin: 12px 0; color: #fff; font-size: 16px; }
.benchmark-aside ul { margin: 0; padding-left: 18px; font-size: 12px; }
.benchmark-aside li { margin: 8px 0; }
.benchmark-main { min-width: 0; }
.benchmark-section { padding: 0 0 64px; margin-bottom: 56px; border-bottom: 1px solid var(--line); }
.benchmark-section > h2 { margin: 0 0 20px; color: var(--ink); font-family: var(--serif); font-size: 36px; line-height: 1.2; }
.benchmark-section h3 { color: var(--ink); }
.benchmark-section p, .benchmark-section li { max-width: 790px; }
.teaching-figure { margin: 34px 0; }
.figure-frame { position: relative; padding: 24px; overflow: auto; border: 2px solid var(--ink); background: #fff; }
.teaching-figure figcaption { padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.figure-reading { margin: 12px 0 0; padding: 14px 18px; border-left: 3px solid var(--blue); background: var(--wash-blue); font-size: 13px; }
.arch-svg { width: 100%; min-width: 650px; height: auto; display: block; }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.metric-card { padding: 20px; background: #fff; }
.metric-card strong { display: block; color: var(--ink); }
.metric-card span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }
.trace-list { counter-reset: trace; margin: 28px 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.trace-list li { counter-increment: trace; max-width: none; display: grid; grid-template-columns: 56px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.trace-list li::before { content: counter(trace, decimal-leading-zero); color: var(--blue); font-family: var(--mono); }
.adr-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.adr-card { padding: 22px; background: #fff; }
.adr-card h3 { margin: 10px 0 8px; }
.adr-card p { margin: 0; font-size: 13px; }
.gate-list { border-top: 2px solid var(--ink); }
.gate-row { display: grid; grid-template-columns: 48px 220px 1fr 110px; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: start; }
.gate-row > span:first-child { color: var(--blue); font-family: var(--mono); }
.gate-row h3, .gate-row p { margin: 0; }
.gate-state { color: var(--teal); font-family: var(--mono); font-size: 10px; }
.gate-state.is-open { color: var(--orange); }

/* chapter */
.lesson-progress-line { position: fixed; left: 0; top: 78px; z-index: 110; width: 0; height: 3px; background: var(--blue); }
.lesson-shell { width: min(1420px, calc(100vw - 44px)); margin: 0 auto; display: grid; grid-template-columns: 210px minmax(0, 790px) 220px; justify-content: center; gap: 46px; padding-top: 44px; }
.lesson-toc, .lesson-aside { position: sticky; top: 112px; align-self: start; max-height: calc(100vh - 136px); overflow: auto; }
.lesson-toc { padding: 18px; border-top: 2px solid var(--ink); background: var(--wash); }
.lesson-toc ol { margin: 16px 0 0; padding: 0; list-style: none; }
.lesson-toc a { display: block; padding: 6px 0; color: var(--muted); font-size: 11px; text-decoration: none; }
.lesson-toc a:hover, .lesson-toc a.is-active { color: var(--blue); font-weight: 700; }
.lesson-main { min-width: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; color: var(--muted); font-family: var(--mono); font-size: 10px; }
.breadcrumb a { text-decoration: none; }
.chapter-header { padding-bottom: 34px; border-bottom: 2px solid var(--ink); }
.chapter-header h1 { margin: 14px 0 16px; color: var(--ink); font-family: var(--serif); font-size: clamp(40px, 5vw, 62px); line-height: 1.12; letter-spacing: -.025em; }
.chapter-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; color: var(--muted); font-family: var(--mono); font-size: 10px; }
.lesson-opening { margin: 38px 0; color: var(--ink); font-family: var(--serif); font-size: 24px; line-height: 1.6; }
.decision-question { margin: 34px 0; padding: 24px 28px; border-left: 4px solid var(--orange); background: var(--wash); }
.decision-question h2 { margin: 0 0 8px; color: var(--ink); font-size: 18px; }
.lesson-section { padding: 28px 0 48px; border-bottom: 1px solid var(--line); }
.lesson-section > h2 { margin: 0 0 20px; color: var(--ink); font-family: var(--serif); font-size: 32px; }
.lesson-section h3 { margin-top: 28px; color: var(--ink); }
.lesson-section p, .lesson-section li { max-width: 760px; }
.lesson-section code { padding: 2px 5px; background: var(--wash); color: var(--danger); font-family: var(--mono); font-size: .88em; }
.lesson-section pre { position: relative; margin: 24px 0; padding: 22px; overflow: auto; background: var(--ink); color: #d8e2ea; font-family: var(--mono); font-size: 12px; line-height: 1.7; }
.workshop { margin: 28px 0; border: 1px solid var(--line); }
.workshop-head { display: grid; grid-template-columns: 70px 1fr; align-items: center; border-bottom: 1px solid var(--line); }
.workshop-head span { align-self: stretch; display: grid; place-items: center; background: var(--blue); color: #fff; font-family: var(--mono); }
.workshop-head h3 { margin: 0; padding: 18px; }
.workshop-body { padding: 22px; }
.workshop-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 28px; }
.workshop-grid strong { display: block; color: var(--ink); font-family: var(--mono); font-size: 10px; }
.workshop-grid p { margin: 6px 0 0; font-size: 13px; }
.failure-lab { margin: 28px 0; padding: 24px; border: 1px solid var(--orange); background: #fffaf7; }
.failure-lab h3 { margin: 0 0 8px; color: var(--ink); }
.review-questions { counter-reset: review; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.review-questions li { counter-increment: review; display: grid; grid-template-columns: 42px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.review-questions li::before { content: counter(review, decimal-leading-zero); color: var(--blue); font-family: var(--mono); }
.misconception-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.misconception-grid article { padding: 20px; background: #fff; }
.misconception-grid h3 { margin: 0 0 8px; font-size: 16px; }
.interview-box { margin: 34px 0; padding: 26px; background: var(--ink); color: #d8e2ea; }
.interview-box h2 { margin: 8px 0; color: #fff; font-family: var(--serif); font-size: 28px; }
.lesson-aside { border-top: 2px solid var(--ink); }
.aside-panel { padding: 18px 0; border-bottom: 1px solid var(--line); }
.aside-panel strong { color: var(--ink); }
.aside-panel p { margin: 8px 0 0; color: var(--muted); font-size: 12px; }
.complete-button { width: 100%; min-height: 44px; border: 1px solid var(--ink); background: #fff; color: var(--ink); cursor: pointer; font-weight: 750; }
.complete-button.is-done { background: var(--teal); border-color: var(--teal); color: #fff; }
.chapter-nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 50px; }
.chapter-nav a { min-height: 90px; padding: 18px; border: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.chapter-nav a:last-child { text-align: right; }
.chapter-nav small { display: block; color: var(--muted); font-family: var(--mono); }

/* responsive */
@media (max-width: 1180px) {
  :root { --shell: min(100% - 44px, 1180px); }
  .site-nav { gap: 10px; }
  .site-nav a { font-size: 11px; }
  .home-hero { grid-template-columns: minmax(0, .9fr) minmax(470px, 1.1fr); gap: 42px; }
  .capability-rail { grid-template-columns: repeat(5, 1fr); }
  .capability-rail a:nth-child(5) { border-right: 0; }
  .capability-rail a:nth-child(n+6) { border-top: 1px solid var(--line); }
  .benchmark-shell { grid-template-columns: 190px minmax(0, 1fr); }
  .benchmark-aside { display: none; }
  .lesson-shell { grid-template-columns: 190px minmax(0, 760px); }
  .lesson-aside { display: none; }
  .soft-principles { grid-template-columns: repeat(3, 1fr); }
  .soft-principles article { border-bottom: 1px solid var(--line); }
  .soft-practice-chain { grid-template-columns: repeat(3, 1fr); }
  .soft-practice-chain article { border-bottom: 1px solid var(--line); }
  .soft-practice-chain article:nth-child(3n) { border-right: 0; }
}

@media (max-width: 960px) {
  .header-inner { grid-template-columns: auto auto; }
  .menu-toggle { display: block; }
  .site-nav { position: absolute; left: 0; right: 0; top: 78px; display: none; padding: 14px 22px 22px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 14px 24px rgba(16,38,59,.08); }
  .site-nav.is-open { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; }
  .site-nav a { padding: 12px; border-bottom: 1px solid var(--grid); }
  .site-nav a::after { display: none; }
  .home-hero { grid-template-columns: 1fr; }
  .decision-canvas { max-width: 760px; }
  .section-head, .page-intro { grid-template-columns: 1fr; gap: 22px; }
  .stage-row, .roadmap-stage { grid-template-columns: 70px minmax(0, 1fr); }
  .stage-chapters, .roadmap-table { grid-column: 2; }
  .role-matrix { grid-template-columns: repeat(2, 1fr); }
  .role-matrix article:nth-child(2) { border-right: 0; }
  .role-matrix article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .diagnostic-shell { grid-template-columns: 1fr; }
  .diagnostic-aside { position: static; }
  .template-layout { grid-template-columns: 1fr; }
  .template-index { position: static; display: flex; overflow-x: auto; border-top: 0; border-bottom: 1px solid var(--line); }
  .template-index button { flex: 0 0 190px; border: 0; border-right: 1px solid var(--line); }
  .answer-framework { grid-template-columns: repeat(3, 1fr); }
  .answer-framework span { border-bottom: 1px solid var(--line); }
  .benchmark-shell, .lesson-shell { width: var(--shell); grid-template-columns: 1fr; }
  .benchmark-toc, .lesson-toc { position: static; max-height: none; display: none; }
  .soft-layout { grid-template-columns: 1fr; }
  .soft-toc { display: none; }
  .soft-metrics { grid-template-columns: repeat(3, 1fr); }
  .soft-metrics > div:nth-child(3) { border-right: 0; }
  .soft-metrics > div:nth-child(-n+3) { border-bottom: 1px solid var(--line); }
  .soft-stage { grid-template-columns: 64px minmax(0, 1fr); }
  .soft-stage-work { grid-column: 2; }
  .soft-rubric-shell { grid-template-columns: 1fr; }
  .soft-score-panel { position: static; }
}

@media (max-width: 720px) {
  :root { --shell: calc(100vw - 32px); }
  body { font-size: 15px; }
  .header-inner { min-height: 68px; }
  .site-nav { top: 68px; grid-template-columns: 1fr !important; }
  .brand-name { font-size: 15px; }
  .home-hero { min-height: auto; padding: 46px 0; }
  .home-hero h1 { font-size: clamp(38px, 10vw, 44px); line-height: 1.08; }
  .hero-copy { font-size: 16px; }
  .decision-path { min-width: 620px; }
  .decision-canvas { overflow-x: auto; padding-bottom: 10px; }
  .trust-board, .decision-gate, .canvas-head { min-width: 620px; }
  .capability-rail { grid-template-columns: repeat(3, 1fr); }
  .capability-rail a, .capability-rail a:nth-child(5) { border-right: 1px solid var(--line); }
  .capability-rail a:nth-child(3n) { border-right: 0; }
  .principle-grid, .evidence-chain, .portfolio-chain { grid-template-columns: 1fr; }
  .domain-ledger { grid-template-columns: 1fr; }
  .domain-ledger article, .domain-ledger article:nth-child(3n+2), .domain-ledger article:nth-child(3n+3) { min-height: auto; padding: 22px 0; border-right: 0; }
  .principle-grid article, .principle-grid article:not(:first-child), .evidence-chain > div, .portfolio-chain article, .portfolio-chain article:not(:first-child) { min-height: auto; padding: 22px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .evidence-chain > div { padding: 20px; }
  .evidence-chain > div::after { display: none; }
  .stage-row, .roadmap-stage { grid-template-columns: 54px minmax(0, 1fr); gap: 16px; }
  .stage-chapters { grid-template-columns: 1fr; }
  .stage-chapters a:nth-child(odd) { border-right: 0; }
  .stage-chapters a:nth-child(even) { padding-left: 0; }
  .bridge-check { margin-left: 0; grid-template-columns: 1fr; }
  .role-matrix, .result-grid, .glossary-grid, .job-grid, .metric-grid, .adr-grid, .misconception-grid, .workshop-grid { grid-template-columns: 1fr; }
  .role-matrix article, .role-matrix article:not(:first-child), .result-grid article, .result-grid article:not(:first-child), .job-card { padding: 20px 0; border-right: 0; }
  .role-matrix article { padding-left: 0 !important; }
  .glossary-grid, .job-grid, .metric-grid, .adr-grid, .misconception-grid { background: transparent; gap: 12px; border: 0; }
  .term-card, .job-card, .metric-card, .adr-card, .misconception-grid article { border: 1px solid var(--line); }
  .source-list { grid-template-columns: 1fr; }
  .interview-item { grid-template-columns: 46px 1fr; }
  .interview-item p { grid-column: 2; }
  .answer-framework { grid-template-columns: repeat(2, 1fr); }
  .benchmark-header h1 { font-size: 46px; }
  .gate-row { grid-template-columns: 42px 1fr; }
  .gate-row p, .gate-row .gate-state { grid-column: 2; }
  .lesson-shell { width: var(--shell); padding-top: 28px; }
  .chapter-header h1 { font-size: 42px; }
  .lesson-opening { font-size: 21px; }
  .chapter-nav { grid-template-columns: 1fr; }
  .chapter-nav a:last-child { text-align: left; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .note-strip { flex-direction: column; gap: 8px; }
  .note-strip > strong { flex-basis: auto; }
  .soft-page-intro h1 { font-size: 42px; }
  .soft-metrics { grid-template-columns: repeat(2, 1fr); }
  .soft-metrics > div, .soft-metrics > div:not(:first-child) { min-height: 96px; padding: 20px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .soft-metrics > div:nth-child(2n) { border-right: 0; }
  .soft-metrics strong { font-size: 31px; }
  .soft-layout { padding-top: 38px; }
  .soft-section { padding-bottom: 58px; margin-bottom: 54px; }
  .soft-section > h2, .soft-section-head h2 { font-size: 38px; }
  .soft-lead { font-size: 20px; }
  .soft-principles, .soft-levels { grid-template-columns: 1fr; background: transparent; gap: 0; }
  .soft-principles article, .soft-principles article:not(:first-child) { min-height: auto; padding: 20px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .soft-levels article { min-height: auto; border-bottom: 1px solid var(--line); }
  .soft-domain-rail { grid-template-columns: repeat(2, 1fr); }
  .soft-domain-rail a, .soft-domain-rail a:nth-child(4n), .soft-domain-rail a:nth-last-child(-n+4) { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .soft-domain-rail a:nth-child(2n) { border-right: 0; }
  .soft-domain-rail a:nth-last-child(-n+2) { border-bottom: 0; }
  .soft-section-head { display: block; }
  .soft-route-progress { margin: 0 0 24px; }
  .soft-stage { grid-template-columns: 46px minmax(0, 1fr); gap: 14px; }
  .soft-stage-work { grid-column: 1 / -1; }
  .soft-stage-output { display: block; }
  .soft-stage-output strong, .soft-stage-output span { display: block; }
  .soft-practice-chain { grid-template-columns: 1fr; }
  .soft-practice-chain article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .soft-practice-chain article::after { display: none; }
  .scenario-lab > header { align-items: flex-start; flex-direction: column; }
  .scenario-output { grid-template-columns: 1fr; }
  .scenario-output article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .soft-timeline li { grid-template-columns: 78px 1fr; gap: 12px; }
  .soft-recovery-grid { grid-template-columns: 1fr; }
  .soft-template summary > span:first-child { grid-template-columns: 1fr; gap: 4px; }
  .soft-template summary > span:last-child { align-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media print {
  .site-header, .site-footer, .filter-bar, .template-index, .benchmark-toc, .benchmark-aside, .lesson-toc, .lesson-aside, .lesson-progress-line, .hero-actions, .route-controls, .template-actions { display: none !important; }
  :root { --shell: 100%; }
  body { color: #000; font-size: 11pt; }
  .benchmark-shell, .lesson-shell { display: block; width: 100%; }
  .benchmark-section, .lesson-section { break-inside: avoid; }
  a { color: #000; text-decoration: none; }
  .teaching-figure { break-inside: avoid; }
}