:root {
  --ink: #14213d;
  --ink-2: #243454;
  --paper: #f4f1ea;
  --white: #fffefa;
  --line: #c9c4b7;
  --muted: #5d6677;
  --blue: #2155a3;
  --blue-light: #dce9f9;
  --amber: #e99b24;
  --amber-light: #fff1d4;
  --green: #16705b;
  --green-light: #d9efe8;
  --red: #bd463c;
  --red-light: #f8e1dd;
  --shadow: 0 22px 60px rgba(20, 33, 61, 0.12);
  --radius: 6px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(20,33,61,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20,33,61,.035) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
}
button, textarea, a { font: inherit; }
a { color: inherit; }
button { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 78px;
  padding: 0 4.5vw;
  border-bottom: 1px solid rgba(255,255,255,.15);
  background: rgba(20, 33, 61, .97);
  color: white;
  backdrop-filter: blur(14px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 2px solid var(--amber);
  color: var(--amber);
  font-family: Georgia, serif;
  font-weight: 800;
}
.brand strong { display: block; font-size: 19px; letter-spacing: .02em; }
.brand small { display: block; color: #b9c7dd; font-size: 11px; letter-spacing: .13em; text-transform: uppercase; }
.topbar nav { display: flex; gap: 32px; }
.topbar nav a, .repo-link { color: #e7edf7; text-decoration: none; font-size: 14px; font-weight: 700; }
.topbar nav a:hover, .repo-link:hover { color: var(--amber); }
.repo-link { justify-self: end; border-bottom: 1px solid var(--amber); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, .98fr) minmax(520px, 1.02fr);
  gap: clamp(42px, 5vw, 76px);
  align-items: center;
  min-height: 760px;
  max-width: 1500px;
  margin: auto;
  padding: 72px 5vw 84px;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .16em;
}
.eyebrow span { width: 34px; height: 3px; background: var(--amber); }
.hero h1, .section-heading h2 {
  margin: 0;
  font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.035em;
}
.hero h1 { max-width: 760px; font-size: clamp(48px, 5vw, 72px); }
.hero-lead { white-space: nowrap; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero-intro {
  max-width: 700px;
  margin: 30px 0 0;
  color: #3f4a5d;
  font-size: 19px;
  line-height: 1.9;
}
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 3px;
  text-decoration: none;
  font-weight: 800;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: white; box-shadow: 8px 8px 0 var(--amber); }
.button-secondary { border-color: var(--ink); background: transparent; }
.button-accent { background: var(--amber); color: #1d2637; }
.button-ghost { border-color: #6f7e96; background: transparent; color: white; }
.hero-facts { display: grid; gap: 12px; margin: 40px 0 0; }
.hero-facts div { display: grid; grid-template-columns: 70px 1fr; gap: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.hero-facts dt { color: var(--blue); font-weight: 800; }
.hero-facts dd { margin: 0; color: #485267; }

.command-board {
  position: relative;
  padding: 30px;
  border: 1px solid #8c98aa;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}
.command-board::before {
  content: "";
  position: absolute;
  inset: -10px 10px 10px -10px;
  z-index: -1;
  border: 2px solid var(--ink);
}
.board-head { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 22px; border-bottom: 2px solid var(--ink); }
.mono-label { color: var(--blue); font-family: Consolas, monospace; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.board-head h2 { margin: 6px 0 2px; font-family: Georgia, "Songti SC", serif; font-size: 28px; line-height: 1.3; }
.board-head p { margin: 0; color: var(--muted); font-size: 14px; }
.status-dot {
  align-self: flex-start;
  padding: 5px 10px;
  border: 1px solid #b27a1b;
  background: var(--amber-light);
  color: #855500;
  font-size: 13px;
  font-weight: 800;
}
.board-metrics { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line); }
.board-metrics > div { min-height: 132px; padding: 18px 16px; border-right: 1px solid var(--line); }
.board-metrics > div:first-child { padding-left: 0; }
.board-metrics > div:last-child { border-right: 0; }
.board-metrics span { display: block; color: var(--muted); font-size: 13px; font-weight: 700; }
.board-metrics strong { display: block; margin-top: 5px; font-family: Georgia, serif; font-size: 37px; line-height: 1.2; }
.board-metrics strong small { margin-left: 2px; font-family: inherit; font-size: 15px; }
.micro-bar { height: 7px; margin-top: 11px; background: #d8e0ec; }
.micro-bar i { display: block; height: 100%; background: var(--blue); }
.micro-bar.amber i { background: var(--amber); }
.metric-note { margin: 8px 0 0; color: var(--red); font-size: 12px; font-weight: 700; }
.delivery-track { padding: 22px 0; border-bottom: 1px solid var(--line); }
.track-title { display: flex; justify-content: space-between; margin-bottom: 14px; font-size: 14px; }
.track-title span { color: var(--green); font-family: Consolas, monospace; font-weight: 800; }
.delivery-track ol { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin: 0; padding: 0; list-style: none; }
.delivery-track li { position: relative; min-height: 88px; padding: 9px; border-top: 4px solid #c8ced8; background: #f1f2f2; }
.delivery-track li.done { border-color: var(--green); background: var(--green-light); }
.delivery-track li.active { border-color: var(--amber); background: var(--amber-light); }
.delivery-track li span, .delivery-track li small { display: block; color: var(--muted); font-size: 11px; }
.delivery-track li b { display: block; margin: 5px 0; font-size: 13px; }
.board-alert { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; padding-top: 20px; }
.alert-code { padding: 4px 7px; background: var(--red-light); color: var(--red); font-family: Consolas, monospace; font-size: 11px; font-weight: 800; }
.board-alert strong { display: block; font-size: 14px; }
.board-alert p { margin: 2px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.owner-tag { color: var(--blue); font-size: 12px; font-weight: 700; }

.proof-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  padding: 24px 5vw;
  background: var(--ink);
  color: #dbe5f3;
}
.proof-strip p { margin: 0; font-size: 14px; }
.proof-strip strong { margin-right: 16px; color: var(--amber); }
.section { padding: 110px 5vw; }
.workflow, .boundaries { max-width: 1500px; margin: auto; }
.section-heading { display: grid; grid-template-columns: .8fr 1.25fr .8fr; gap: 40px; align-items: end; margin-bottom: 55px; }
.section-heading .eyebrow { align-self: start; }
.section-heading h2 { font-size: clamp(36px, 4vw, 58px); }
.section-heading > p:last-child { margin: 0; color: var(--muted); font-size: 17px; }
.method-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.method-card { position: relative; min-height: 340px; padding: 34px; border: 1px solid var(--line); background: rgba(255,254,250,.92); }
.method-no { position: absolute; top: 28px; right: 30px; color: #c8c1b5; font-family: Georgia, serif; font-size: 52px; font-weight: 700; line-height: 1; }
.method-card h3 { max-width: 70%; margin: 0 0 14px; font-family: Georgia, "Songti SC", serif; font-size: 28px; }
.method-card > p { max-width: 85%; margin: 0 0 28px; color: var(--muted); }
.mini-matrix { display: grid; grid-template-columns: 70px 1fr 1.3fr; border-top: 1px solid var(--line); font-size: 13px; }
.mini-matrix > * { padding: 9px 6px; border-bottom: 1px solid var(--line); }
.mini-matrix span { color: var(--blue); font-family: Consolas, monospace; }
.mini-matrix em { color: var(--muted); font-style: normal; }
.score-stack { display: grid; gap: 13px; }
.score-stack span { position: relative; display: flex; justify-content: space-between; overflow: hidden; padding: 10px 12px; background: #e5e8ed; font-size: 13px; }
.score-stack span::before { content:""; position:absolute; inset:0 auto 0 0; width:var(--w); background:var(--blue-light); }
.score-stack b, .score-stack i { position: relative; z-index: 1; }
.score-stack i { color: var(--blue); font-style: normal; font-weight: 800; }
.metric-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; border: 1px solid var(--line); }
.metric-list div { padding: 15px; border-right: 1px solid var(--line); }
.metric-list div:last-child { border: 0; }
.metric-list dt { color: var(--muted); font-size: 12px; }
.metric-list dd { margin: 4px 0 0; color: var(--green); font-size: 17px; font-weight: 800; }
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 10px; align-items: center; padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px; }
.check-list span { min-width: 29px; padding: 1px 6px; text-align: center; color: white; font-size: 11px; font-weight: 800; }
.check-list .error { background: var(--red); }
.check-list .warn { background: #a86c08; }
.check-list .info { background: var(--blue); }

.demo-section { padding: 100px 4vw; background: var(--ink); color: white; }
.demo-section > * { max-width: 1500px; margin-left: auto; margin-right: auto; }
.section-heading.light .eyebrow { color: #9dbce9; }
.section-heading.light h2 { color: white; }
.section-heading.light > p:last-child { color: #b9c7dc; }
.demo-launcher { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; margin-bottom: 24px; padding: 24px; border: 1px solid #50617d; background: #1c2c4b; }
.brief-box label { display: block; margin-bottom: 8px; color: #aec2e0; font-size: 13px; font-weight: 800; }
.brief-box textarea { width: 100%; min-height: 96px; resize: vertical; padding: 14px; border: 1px solid #697a96; border-radius: 0; outline: none; background: #10203c; color: white; font-size: 15px; line-height: 1.7; }
.brief-box textarea:focus { border-color: var(--amber); box-shadow: 0 0 0 3px rgba(233,155,36,.18); }
.launch-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; min-width: 320px; }
.launch-actions p { grid-column: 1 / -1; margin: 0; color: #99abc5; font-size: 12px; text-align: center; }
.workspace { display: grid; grid-template-columns: 285px 1fr; min-height: 730px; border: 1px solid #62728a; background: var(--white); color: var(--ink); box-shadow: 0 28px 80px rgba(0,0,0,.28); }
.workspace-sidebar { display: flex; flex-direction: column; background: #e7e2d8; border-right: 1px solid #aaa69d; }
.project-identity { min-height: 120px; padding: 24px; border-bottom: 1px solid #aaa69d; }
.project-identity span { color: var(--blue); font-family: Consolas, monospace; font-size: 11px; font-weight: 800; }
.project-identity h3 { margin: 8px 0 0; font-family: Georgia, "Songti SC", serif; font-size: 22px; line-height: 1.35; }
.stage-nav { padding: 10px; }
.stage-button { display: grid; grid-template-columns: 30px 1fr; width: 100%; padding: 12px 10px; border: 0; border-bottom: 1px solid #c3bdb2; background: transparent; text-align: left; cursor: pointer; }
.stage-button:hover { background: rgba(255,255,255,.6); }
.stage-button.active { background: var(--ink); color: white; box-shadow: inset 4px 0 0 var(--amber); }
.stage-button > span { grid-row: 1 / 3; color: var(--blue); font-family: Georgia, serif; font-size: 16px; font-weight: 800; }
.stage-button.active > span { color: var(--amber); }
.stage-button strong { font-size: 15px; }
.stage-button small { color: #687181; font-size: 11px; }
.stage-button.active small { color: #aebbd0; }
.workspace-progress { margin-top: auto; padding: 20px; border-top: 1px solid #aaa69d; }
.workspace-progress > div:first-child { display: flex; justify-content: space-between; font-size: 13px; }
.workspace-progress strong { color: var(--blue); font-size: 19px; }
.progress-track { overflow: hidden; height: 8px; margin-top: 8px; background: #c0c6cf; }
.progress-track span { display: block; height: 100%; background: var(--amber); transition: width .25s ease; }
.workspace-main { min-width: 0; background: var(--white); }
.empty-state { display: grid; place-content: center; min-height: 720px; padding: 40px; text-align: center; }
.empty-state > span { display: grid; place-items: center; width: 86px; height: 86px; margin: 0 auto 20px; border: 3px solid var(--line); color: #9a988e; font-family: Georgia, serif; font-size: 29px; font-weight: 800; }
.empty-state h3 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: 30px; }
.empty-state p { max-width: 470px; margin: 10px auto 0; color: var(--muted); }
.stage-panel { padding: 30px; }
.panel-header { display: flex; justify-content: space-between; gap: 30px; padding-bottom: 22px; border-bottom: 2px solid var(--ink); }
.panel-header p { margin: 0 0 5px; color: var(--blue); font-family: Consolas, monospace; font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.panel-header h3 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: 32px; }
.panel-header div > span { display: block; max-width: 750px; margin-top: 8px; color: var(--muted); font-size: 14px; }
.panel-state { align-self: flex-start; padding: 5px 9px; background: var(--green-light); color: var(--green); font-size: 12px; font-weight: 800; }
.panel-content { padding-top: 24px; }
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.kpi-card { padding: 18px; border: 1px solid var(--line); background: #f7f4ee; }
.kpi-card span { color: var(--muted); font-size: 12px; }
.kpi-card strong { display: block; margin: 4px 0; font-family: Georgia, serif; font-size: 30px; }
.kpi-card small { color: var(--green); font-size: 11px; font-weight: 700; }
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.content-card { padding: 20px; border: 1px solid var(--line); background: white; }
.content-card.wide { grid-column: 1 / -1; }
.content-card h4 { margin: 0 0 14px; font-family: Georgia, "Songti SC", serif; font-size: 20px; }
.phase-list, .risk-list, .outline-list, .audit-list, .poc-list { margin: 0; padding: 0; list-style: none; }
.phase-row { display: grid; grid-template-columns: 90px 1fr 50px; gap: 12px; align-items: center; padding: 9px 0; border-top: 1px solid var(--line); font-size: 13px; }
.phase-row div { height: 8px; background: #e2e4e8; }
.phase-row div span { display: block; height: 100%; background: var(--blue); }
.phase-row strong { text-align: right; }
.risk-list li { display: grid; grid-template-columns: 38px 1fr auto; gap: 10px; padding: 10px 0; border-top: 1px solid var(--line); font-size: 13px; }
.severity { align-self: start; padding: 1px 5px; color: white; text-align: center; font-size: 11px; font-weight: 800; }
.severity.high { background: var(--red); }
.severity.medium { background: #9d660b; }
.severity.low { background: var(--blue); }
.risk-list small { color: var(--muted); }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.filter-button { padding: 6px 11px; border: 1px solid #aeb4bd; background: #f1f2f2; font-size: 12px; font-weight: 700; cursor: pointer; }
.filter-button.active { border-color: var(--ink); background: var(--ink); color: white; }
.data-table { overflow-x: auto; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 11px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #e8e4dc; color: #3f4859; font-size: 11px; letter-spacing: .04em; }
td strong { font-size: 13px; }
.type-tag, .state-tag { display: inline-block; padding: 2px 6px; font-size: 10px; font-weight: 800; white-space: nowrap; }
.type-tag.mandatory { background: var(--red-light); color: var(--red); }
.type-tag.score { background: var(--amber-light); color: #8a5a06; }
.type-tag.tech { background: var(--blue-light); color: var(--blue); }
.type-tag.clarify { background: #ece5f5; color: #6f43a0; }
.state-tag.done { background: var(--green-light); color: var(--green); }
.state-tag.pending { background: var(--amber-light); color: #8a5a06; }
.state-tag.risk { background: var(--red-light); color: var(--red); }
.row-action, .poc-toggle, .audit-toggle { border: 1px solid #9ba4b2; background: white; color: var(--ink); cursor: pointer; font-size: 11px; font-weight: 700; }
.row-action[aria-pressed="true"], .poc-toggle[aria-pressed="true"], .audit-toggle[aria-pressed="true"] { border-color: var(--green); background: var(--green); color: white; }
.score-overview { display: grid; grid-template-columns: 260px 1fr; gap: 22px; }
.score-ring { display: grid; place-items: center; aspect-ratio: 1; border-radius: 50%; background: conic-gradient(var(--amber) 0 91%, #d9dde4 91%); }
.score-ring > div { display: grid; place-items: center; width: 73%; aspect-ratio: 1; border-radius: 50%; background: white; }
.score-ring strong { font-family: Georgia, serif; font-size: 48px; line-height: 1; }
.score-ring span { color: var(--muted); font-size: 12px; }
.score-bars { display: grid; gap: 12px; align-content: center; }
.score-bar { display: grid; grid-template-columns: 100px 1fr 70px; gap: 10px; align-items: center; font-size: 12px; }
.score-bar > div { height: 9px; background: #e2e4e9; }
.score-bar i { display: block; height: 100%; background: var(--blue); }
.score-bar strong { text-align: right; }
.architecture { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.architecture article { padding: 16px; border-top: 5px solid var(--blue); background: #eaf0f8; }
.architecture article:nth-child(2) { border-color: var(--green); background: #e6f2ee; }
.architecture article:nth-child(3) { border-color: var(--amber); background: #fff2d9; }
.architecture article:nth-child(4) { border-color: #7b5aa7; background: #eee7f7; }
.architecture h5 { margin: 0 0 9px; font-size: 15px; }
.architecture p { margin: 0; color: var(--muted); font-size: 12px; }
.outline-list li { display: grid; grid-template-columns: 45px 1fr auto; gap: 12px; padding: 11px 0; border-top: 1px solid var(--line); font-size: 13px; }
.outline-list span:first-child { color: var(--blue); font-family: Consolas, monospace; }
.outline-list small { color: var(--muted); }
.poc-list, .audit-list { display: grid; gap: 10px; }
.poc-row, .audit-row { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 14px; border: 1px solid var(--line); }
.poc-row.completed, .audit-row.resolved { background: var(--green-light); }
.poc-row strong, .audit-row strong { display: block; font-size: 14px; }
.poc-row span, .audit-row span { display: block; color: var(--muted); font-size: 12px; }
.poc-toggle, .audit-toggle { width: 28px; height: 28px; }
.acceptance { text-align: right; }
.acceptance b { display: block; color: var(--blue); font-size: 12px; }
.acceptance small { color: var(--muted); font-size: 10px; }
.timeline { position: relative; padding-left: 20px; }
.timeline::before { content:""; position:absolute; top:8px; bottom:8px; left:4px; width:2px; background:#c9ced7; }
.timeline-row { position: relative; display: grid; grid-template-columns: 100px 1fr auto; gap: 14px; padding: 8px 0 16px 16px; font-size: 12px; }
.timeline-row::before { content:""; position:absolute; top:13px; left:-20px; width:10px; height:10px; border:2px solid var(--blue); background:white; border-radius:50%; }
.timeline-row strong { font-size: 13px; }
.timeline-row small { color: var(--muted); }
.owner-pill { padding: 2px 7px; background: var(--blue-light); color: var(--blue); font-weight: 700; }
.audit-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.audit-summary div { padding: 13px; border: 1px solid var(--line); }
.audit-summary span { color: var(--muted); font-size: 11px; }
.audit-summary strong { display: block; font-family: Georgia, serif; font-size: 26px; }
.download-tray { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; margin-top: 22px; padding: 24px; border: 1px solid #596a84; background: #1c2c4b; }
.download-tray h3 { margin: 4px 0; font-family: Georgia, "Songti SC", serif; font-size: 23px; }
.download-tray p { margin: 0; color: #aebbd0; font-size: 13px; }
.download-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.download-link { padding: 9px 13px; border: 1px solid #8291a8; color: white; text-decoration: none; font-size: 13px; font-weight: 700; }
.download-link:not([aria-disabled="true"]):hover { border-color: var(--amber); color: var(--amber); }
.download-link[aria-disabled="true"] { opacity: .4; pointer-events: none; }

.boundary-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); background: var(--white); }
.boundary-grid article { min-height: 210px; padding: 30px; border-right: 1px solid var(--line); }
.boundary-grid article:last-child { border: 0; }
.boundary-grid strong { display: block; margin-bottom: 14px; color: var(--blue); font-family: Georgia, "Songti SC", serif; font-size: 22px; }
.boundary-grid p { margin: 0; color: var(--muted); }
footer { display: flex; justify-content: space-between; gap: 30px; padding: 40px 5vw; background: #0d172b; color: white; }
footer strong { font-family: Georgia, serif; font-size: 23px; }
footer p { margin: 4px 0 0; color: #aebbd0; font-size: 13px; }

@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; }
  .command-board { max-width: 800px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .workspace { grid-template-columns: 240px 1fr; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .architecture { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 800px) {
  body { font-size: 16px; }
  .topbar { grid-template-columns: 1fr auto; min-height: 68px; padding: 0 18px; }
  .topbar nav { display: none; }
  .brand small { display: none; }
  .hero { min-height: auto; padding: 58px 22px 70px; }
  .hero h1 { font-size: 46px; }
  .hero-lead { white-space: normal; }
  .command-board { padding: 22px; }
  .board-head, .board-alert { grid-template-columns: 1fr; display: grid; }
  .board-metrics { grid-template-columns: 1fr; }
  .board-metrics > div { min-height: auto; padding: 14px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .delivery-track ol { grid-template-columns: 1fr 1fr; }
  .proof-strip { grid-template-columns: 1fr; gap: 12px; padding: 24px 22px; }
  .section { padding: 80px 22px; }
  .method-grid, .content-grid, .boundary-grid { grid-template-columns: 1fr; }
  .boundary-grid article { border-right: 0; border-bottom: 1px solid var(--line); }
  .demo-section { padding: 80px 16px; }
  .demo-launcher, .download-tray { grid-template-columns: 1fr; }
  .launch-actions { min-width: 0; }
  .workspace { grid-template-columns: 1fr; }
  .workspace-sidebar { border-right: 0; }
  .stage-nav { display: grid; grid-template-columns: 1fr 1fr; }
  .stage-button { min-height: 70px; }
  .workspace-progress { margin-top: 0; }
  .stage-panel { padding: 20px 14px; }
  .panel-header { display: grid; }
  .kpi-grid, .audit-summary { grid-template-columns: 1fr 1fr; }
  .score-overview { grid-template-columns: 1fr; }
  .score-ring { width: 230px; margin: auto; }
  .architecture { grid-template-columns: 1fr; }
  .poc-row, .audit-row { grid-template-columns: auto 1fr; }
  .acceptance { grid-column: 2; text-align: left; }
  footer { display: grid; padding: 35px 22px; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 39px; }
  .hero-actions .button { width: 100%; }
  .method-card { padding: 26px 20px; }
  .metric-list { grid-template-columns: 1fr; }
  .metric-list div { border-right: 0; border-bottom: 1px solid var(--line); }
  .stage-nav { grid-template-columns: 1fr; }
  .kpi-grid, .audit-summary { grid-template-columns: 1fr; }
  .panel-header h3 { font-size: 27px; }
}