:root {
  --bg: oklch(0.988 0 0);
  --paper: oklch(0.965 0.005 248);
  --surface: oklch(1 0 0);
  --ink: oklch(0.18 0.036 252);
  --muted: oklch(0.42 0.028 252);
  --line: oklch(0.82 0.018 248);
  --navy: oklch(0.31 0.115 252);
  --navy-deep: oklch(0.21 0.08 252);
  --gold: oklch(0.72 0.13 78);
  --red: oklch(0.50 0.15 35);
  --green: oklch(0.45 0.10 174);
  --shadow: 0 8px 18px oklch(0.16 0.03 252 / 0.10);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, oklch(0.945 0.007 248) 1px, transparent 1px),
    linear-gradient(0deg, oklch(0.945 0.007 248) 1px, transparent 1px),
    var(--bg);
  background-size: 48px 48px;
  color: var(--ink);
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  height: 4px;
  background: oklch(0.9 0.012 248);
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--navy), var(--gold));
}

.site-header {
  position: sticky;
  top: 4px;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 15px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklch, var(--bg) 92%, white);
  backdrop-filter: blur(16px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-symbol {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 8px;
  background: var(--navy);
  color: white;
  font-weight: 900;
}

.brand-mark strong,
.brand-mark small {
  display: block;
}

.brand-mark small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.82rem;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.main-nav a {
  padding: 9px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.94rem;
}

.main-nav a:hover {
  background: var(--paper);
  color: var(--ink);
}

main {
  width: min(1440px, calc(100% - 40px));
  margin: 0 auto;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 9em;
  margin-bottom: 24px;
  font-size: clamp(3rem, 7.8vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4.6vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.032em;
  text-wrap: balance;
}

h3 {
  margin-bottom: 10px;
  font-size: clamp(1.2rem, 2vw, 1.75rem);
  line-height: 1.18;
}

.section-code {
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 0.86rem;
  font-weight: 900;
}

.hero,
.chapter,
.position-section,
.problem-section,
.products-section,
.contact-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.86fr) minmax(440px, 1.14fr);
  gap: clamp(28px, 6vw, 88px);
  align-items: center;
}

.hero {
  min-height: calc(100vh - 82px);
  padding: clamp(40px, 7vw, 92px) 0;
}

.hero-lead,
.hero-support,
.chapter-copy p,
.position-left p,
.problem-copy p,
.product-copy p,
.house-intro p,
.thanks-copy p,
.section-head p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.78;
}

.hero-support {
  max-width: 62ch;
  padding-left: 18px;
  border-left: 3px solid var(--gold);
  color: color-mix(in oklch, var(--ink) 74%, var(--muted));
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-actions a {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--navy);
  border-radius: 999px;
  background: var(--navy);
  color: white;
  font-weight: 900;
}

.hero-actions a + a {
  background: white;
  color: var(--navy);
}

.hero-image {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
  box-shadow: var(--shadow);
}

.hero-image img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9.5;
  object-fit: cover;
}

.hero-image figcaption {
  position: absolute;
  right: 18px;
  bottom: 16px;
  padding: 9px 12px;
  border-radius: 999px;
  background: oklch(1 0 0 / 0.88);
  color: var(--navy);
  font-size: 0.86rem;
  font-weight: 900;
}

.hero-board {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    radial-gradient(circle at 76% 20%, oklch(0.82 0.13 78 / 0.34), transparent 22%),
    linear-gradient(135deg, var(--navy), var(--navy-deep));
  color: white;
  box-shadow: var(--shadow);
}

.board-top {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.board-top span,
.board-card {
  border: 1px solid oklch(1 0 0 / 0.24);
  border-radius: 10px;
  background: oklch(1 0 0 / 0.10);
}

.board-top span {
  padding: 14px;
  text-align: center;
  font-weight: 800;
}

.growth-curve {
  position: absolute;
  right: 38px;
  bottom: 110px;
  display: flex;
  gap: 18px;
  align-items: end;
}

.growth-curve i {
  display: block;
  width: 44px;
  border-radius: 8px 8px 0 0;
  background: var(--gold);
}

.growth-curve i:nth-child(1) { height: 70px; }
.growth-curve i:nth-child(2) { height: 120px; }
.growth-curve i:nth-child(3) { height: 180px; }
.growth-curve i:nth-child(4) { height: 250px; }

.board-card {
  width: min(420px, 86%);
  margin-top: 70px;
  padding: 22px;
}

.board-card.primary {
  background: white;
  color: var(--ink);
}

.board-card strong,
.board-card span {
  display: block;
}

.board-card strong {
  margin-bottom: 8px;
  font-size: 1.45rem;
}

.board-card span {
  color: color-mix(in oklch, currentColor 68%, transparent);
}

.target-ring {
  position: absolute;
  right: 28px;
  top: 120px;
  display: grid;
  width: 138px;
  height: 138px;
  place-items: center;
  border: 12px solid var(--gold);
  border-radius: 50%;
  color: white;
  font-weight: 900;
}

.route-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-bottom: clamp(56px, 8vw, 112px);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--line);
}

.route-band div {
  display: grid;
  gap: 8px;
  min-height: 128px;
  padding: 22px;
  background: white;
}

.route-band strong {
  color: var(--gold);
  font-size: 2rem;
}

.route-band span {
  font-weight: 900;
}

.chapter,
.position-section,
.mission-section,
.asset-section,
.problem-section,
.solution-section,
.advantage-section,
.products-section,
.product-house-section,
.contact-section {
  scroll-margin-top: 92px;
  margin-bottom: clamp(64px, 9vw, 128px);
}

.learning-path {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.learning-path article {
  min-height: 260px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
}

.learning-path span,
.advantage-grid span {
  display: grid;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  font-weight: 900;
}

.learning-path p,
.role-grid p,
.mission-road h3,
.mission-road p,
.engine-grid li,
.advantage-grid p,
.product-matrix p,
.product-matrix span {
  color: var(--muted);
  line-height: 1.62;
}

.brief-panel {
  display: grid;
  gap: 6px;
  margin-top: 24px;
  padding: 18px;
  border: 1px solid color-mix(in oklch, var(--navy) 22%, transparent);
  border-radius: 12px;
  background: color-mix(in oklch, var(--navy) 5%, white);
}

.brief-panel strong {
  color: var(--navy);
}

.brief-panel span {
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 900;
}

.position-section,
.problem-section,
.products-section {
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
}

.clean-list {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.clean-list li {
  padding: 14px 0;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-weight: 800;
}

.position-diagram {
  display: grid;
  gap: 16px;
}

.from-to {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 14px;
  align-items: center;
}

.from-to div {
  min-height: 142px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
}

.from-to div:last-child {
  background: var(--navy);
  color: white;
}

.from-to strong,
.from-to span {
  display: block;
}

.from-to strong {
  margin-bottom: 8px;
  font-size: 1.25rem;
}

.from-to span {
  color: color-mix(in oklch, currentColor 64%, transparent);
}

.from-to b,
.shift-arrow {
  color: var(--red);
  font-weight: 900;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.role-grid article,
.mission-road article,
.advantage-grid article,
.product-matrix article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
}

.cycle-line,
.service-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cycle-line span,
.service-flow span {
  padding: 10px 13px;
  border-radius: 999px;
  background: color-mix(in oklch, var(--navy) 8%, white);
  color: var(--navy);
  font-weight: 800;
}

.mission-section,
.asset-section,
.solution-section,
.advantage-section,
.product-house-section {
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
}

.section-head,
.house-intro {
  max-width: 960px;
}

.mission-road {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.mission-road article {
  min-height: 250px;
}

.mission-road span {
  display: inline-flex;
  margin-bottom: 22px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  font-weight: 900;
}

.mission-road h3 {
  color: var(--ink);
  font-size: 1.15rem;
}

.mission-road p {
  margin-bottom: 0;
}

.metric-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0 24px;
}

.metric-wall article {
  min-height: 178px;
  padding: 22px;
  border-radius: 12px;
  background: var(--navy);
  color: white;
}

.metric-wall article:nth-child(even) {
  background: var(--navy-deep);
}

.metric-wall strong {
  display: block;
  margin-bottom: 12px;
  color: var(--gold);
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  line-height: 1;
}

.metric-wall span {
  color: oklch(0.9 0.018 248);
  line-height: 1.55;
}

.problem-board {
  display: grid;
  grid-template-columns: 1fr auto 1.25fr;
  gap: 14px;
  align-items: center;
}

.tool-basket,
.talent-supply {
  min-height: 300px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
}

.tool-basket span,
.talent-supply span {
  display: inline-flex;
  margin: 6px;
  padding: 10px 12px;
  border-radius: 8px;
  background: white;
  color: var(--navy);
  font-weight: 900;
}

.talent-supply {
  background: var(--navy);
  color: white;
}

.talent-supply p {
  color: oklch(0.9 0.018 248);
}

.talent-supply span {
  color: var(--ink);
}

.pain-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.pain-cards button,
.house-grid button {
  min-height: 64px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: white;
  color: var(--ink);
  cursor: pointer;
  font-weight: 900;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.pain-cards button:hover,
.house-grid button:hover,
.pain-cards button.active {
  transform: translateY(-2px);
  border-color: var(--navy);
  background: color-mix(in oklch, var(--navy) 6%, white);
}

.pain-cards button.active {
  background: var(--navy);
  color: white;
}

.interaction-note {
  min-height: 58px;
  margin: 16px 0 0;
  padding: 16px;
  border: 1px solid color-mix(in oklch, var(--navy) 20%, transparent);
  border-radius: 10px;
  background: color-mix(in oklch, var(--navy) 5%, white);
  color: var(--muted);
  line-height: 1.58;
}

.engine-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.engine-grid article {
  padding: 30px;
  border-radius: 14px;
  background: var(--navy);
  color: white;
}

.engine-grid article + article {
  background: var(--navy-deep);
}

.engine-wheel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  width: min(100%, 420px);
  margin-bottom: 22px;
  border: 1px solid oklch(1 0 0 / 0.25);
  border-radius: 999px;
  background: oklch(1 0 0 / 0.25);
}

.engine-wheel span {
  padding: 18px 10px;
  background: oklch(1 0 0 / 0.11);
  text-align: center;
  font-weight: 900;
}

.engine-grid h3 {
  color: var(--gold);
}

.engine-grid ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
}

.engine-grid li {
  color: oklch(0.9 0.018 248);
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.advantage-grid article {
  min-height: 260px;
}

.moat-line {
  margin-top: 18px;
  padding: 18px;
  border-radius: 12px;
  background: color-mix(in oklch, var(--gold) 25%, white);
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 900;
  text-align: center;
}

.product-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.product-matrix article {
  min-height: 260px;
}

.product-matrix span {
  display: block;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--navy);
  font-weight: 900;
}

.house-shell {
  display: grid;
  grid-template-columns: 120px 1fr 120px;
  gap: 16px;
  align-items: stretch;
  margin-top: 30px;
}

.side-axis {
  display: grid;
  gap: 12px;
  align-content: center;
}

.side-axis span {
  display: grid;
  min-height: 100px;
  place-items: center;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  font-size: 1.18rem;
  font-weight: 900;
}

.side-axis span + span {
  background: var(--green);
}

.right span {
  background: var(--green);
}

.right span + span {
  background: var(--gold);
  color: var(--ink);
}

.house-main {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
}

.roof {
  width: min(520px, 86%);
  margin: 0 auto 16px;
  padding: 20px;
  clip-path: polygon(50% 0, 100% 55%, 92% 100%, 8% 100%, 0 55%);
  background: var(--navy);
  color: white;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 900;
}

.house-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.house-grid button {
  min-height: 108px;
}

.house-grid button.active {
  border-color: var(--navy);
  background: var(--navy);
  color: white;
}

.house-foundation {
  margin: 16px 0 0;
  padding: 16px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  text-align: center;
  font-weight: 900;
}

.house-detail {
  margin-top: 22px;
  padding: clamp(22px, 4vw, 42px);
  border-radius: 16px;
  background:
    linear-gradient(135deg, color-mix(in oklch, var(--navy) 96%, black), color-mix(in oklch, var(--navy) 76%, var(--green))),
    var(--navy);
  color: white;
}

.house-detail .section-code {
  color: var(--gold);
}

.house-detail h3 {
  font-size: clamp(2rem, 4vw, 4rem);
  letter-spacing: -0.03em;
}

.house-detail p {
  max-width: 78ch;
  color: oklch(0.92 0.016 248);
  font-size: 1.05rem;
  line-height: 1.72;
}

.house-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.house-detail-grid section {
  padding: 18px;
  border: 1px solid oklch(0.78 0.06 78 / 0.28);
  border-radius: 10px;
  background: oklch(1 0 0 / 0.06);
}

.house-detail-grid h4 {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 1.05rem;
}

.house-detail-grid p {
  margin-bottom: 0;
  color: oklch(0.88 0.016 248);
}

.detail-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-list li {
  padding: 8px 10px;
  border: 1px solid oklch(0.78 0.06 78 / 0.28);
  border-radius: 4px;
  background: oklch(1 0 0 / 0.08);
  color: oklch(0.92 0.016 248);
  font-size: 0.92rem;
  font-weight: 800;
}

.house-detail dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0 0;
}

.house-detail dl div {
  padding: 16px;
  border: 1px solid oklch(0.78 0.06 78 / 0.45);
  border-radius: 10px;
  background: oklch(1 0 0 / 0.08);
}

.house-detail dt {
  margin-bottom: 6px;
  color: var(--gold);
  font-weight: 900;
}

.house-detail dd {
  margin: 0;
  color: oklch(0.9 0.016 248);
  line-height: 1.55;
}

.contact-section {
  min-height: 540px;
  padding: clamp(28px, 5vw, 64px);
  border-radius: 18px;
  background: var(--navy-deep);
  color: white;
}

.thanks-copy .section-code,
.house-detail .section-code {
  color: var(--gold);
}

.thanks-copy h2 {
  color: white;
}

.thanks-copy p {
  color: oklch(0.88 0.018 248);
}

.contact-panel {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 22px;
  align-items: center;
  padding: 20px;
  border: 1px solid oklch(0.76 0.11 78);
  border-radius: 14px;
  background: white;
  color: var(--ink);
}

.contact-panel img {
  display: block;
  width: 100%;
  border-radius: 8px;
}

.contact-panel span,
.contact-panel strong {
  display: block;
}

.contact-panel span {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-panel strong {
  margin-top: 4px;
  font-size: 1.6rem;
}

@media (max-width: 1080px) {
  .main-nav {
    display: none;
  }

  .hero,
  .chapter,
  .position-section,
  .problem-section,
  .products-section,
  .contact-section,
  .problem-board,
  .house-shell {
    grid-template-columns: 1fr;
  }

  .learning-path,
  .mission-road,
  .metric-wall,
  .pain-cards,
  .advantage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .house-shell {
    gap: 12px;
  }

  .side-axis {
    grid-template-columns: repeat(2, 1fr);
  }

  .side-axis span {
    min-height: 64px;
  }
}

@media (max-width: 680px) {
  main {
    width: min(100% - 24px, 1440px);
  }

  .site-header {
    padding: 12px;
  }

  .brand-mark small {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 42px 0 54px;
  }

  h1 {
    font-size: clamp(2.55rem, 14vw, 4rem);
  }

	  .route-band,
	  .learning-path,
	  .role-grid,
	  .mission-road,
	  .metric-wall,
	  .pain-cards,
	  .engine-grid,
	  .advantage-grid,
	  .product-matrix,
	  .house-grid,
	  .house-detail-grid,
	  .house-detail dl,
	  .from-to,
	  .contact-panel {
    grid-template-columns: 1fr;
  }

  .position-section,
  .mission-section,
  .asset-section,
  .problem-section,
  .solution-section,
  .advantage-section,
  .products-section,
  .product-house-section,
  .contact-section {
    padding: 18px;
    border-radius: 14px;
  }

  .contact-panel {
    max-width: 360px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* Reference-inspired proposal skin: bold orange opening, dark chapters, warm editorial pages. */
:root {
  --bg: #f1eee6;
  --paper: #e9e5dc;
  --surface: #ffffff;
  --ink: #111111;
  --muted: #5d5a55;
  --line: #c9c3b8;
  --navy: #151515;
  --navy-deep: #0d0d0d;
  --gold: #f4bd3e;
  --red: #d94a2f;
  --green: #2e7d72;
  --shadow: 0 14px 36px rgb(17 17 17 / 0.12);
}

body {
  background: var(--bg);
}

.progress {
  height: 3px;
  background: rgb(255 255 255 / 0.18);
}

.progress span {
  background: var(--gold);
}

.site-header {
  top: 3px;
  border-bottom-color: rgb(255 255 255 / 0.14);
  background: rgb(13 13 13 / 0.94);
  color: white;
}

.brand-symbol {
  border: 1px solid rgb(255 255 255 / 0.45);
  border-radius: 4px;
  background: var(--red);
}

.brand-mark small,
.main-nav a {
  color: rgb(255 255 255 / 0.64);
}

.main-nav a {
  border-radius: 4px;
}

.main-nav a:hover {
  background: var(--red);
  color: white;
}

main {
  width: 100%;
}

main > section {
  padding-right: max(28px, calc((100vw - 1216px) / 2));
  padding-left: max(28px, calc((100vw - 1216px) / 2));
}

h1,
h2,
.house-detail h3 {
  letter-spacing: 0;
}

h1 {
  max-width: 8.4em;
  margin-bottom: 16px;
  font-size: clamp(3.8rem, 6.1vw, 5.5rem);
  line-height: 0.94;
}

h2 {
  max-width: 14em;
  font-size: clamp(2.7rem, 5vw, 5rem);
  line-height: 1.02;
}

.section-code {
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: calc(100vh - 110px);
  grid-template-columns: minmax(0, 0.98fr) minmax(420px, 0.72fr);
  gap: clamp(34px, 6vw, 90px);
  overflow: hidden;
  padding-top: clamp(46px, 4vw, 54px);
  padding-right: max(28px, calc((100vw - 1216px) / 2));
  padding-bottom: clamp(46px, 4vw, 54px);
  padding-left: max(28px, calc((100vw - 1216px) / 2));
  background: var(--red);
  color: white;
}

.hero::before,
.hero::after {
  position: absolute;
  z-index: -1;
  content: "";
}

.hero::before {
  top: 7%;
  right: 5%;
  width: 88px;
  aspect-ratio: 1;
  border: 20px solid var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 10px rgb(255 255 255 / 0.14);
}

.hero::after {
  right: 0;
  bottom: 0;
  width: 43%;
  height: 36%;
  background: var(--green);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0.72;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero .section-code,
.hero-lead,
.hero-support {
  color: white;
}

.hero-lead {
  max-width: 64ch;
  margin-bottom: 14px;
  font-size: clamp(1.04rem, 1.45vw, 1.22rem);
  line-height: 1.65;
}

.hero-support {
  max-width: 60ch;
  margin-bottom: 0;
  border-left-color: var(--gold);
  color: rgb(255 255 255 / 0.82);
  font-size: 0.98rem;
  line-height: 1.6;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.hero-metrics div {
  min-height: 72px;
  padding: 4px 12px 0 16px;
  border-left: 3px solid white;
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics strong {
  font-size: clamp(1.9rem, 3vw, 3.2rem);
  line-height: 1;
}

.hero-metrics span {
  margin-top: 9px;
  color: rgb(255 255 255 / 0.72);
  font-size: 0.82rem;
}

.hero-actions a {
  border-color: var(--ink);
  border-radius: 4px;
  background: var(--ink);
}

.hero-actions {
  margin-top: 16px;
}

.hero-actions a + a {
  border-color: white;
  background: transparent;
  color: white;
}

.hero-image {
  align-self: end;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.hero-image img {
  aspect-ratio: 1 / 1.04;
  object-fit: cover;
  object-position: 62% center;
  filter: saturate(0.88) contrast(1.03);
  mix-blend-mode: multiply;
}

.hero-image figcaption {
  right: 0;
  bottom: 0;
  border-radius: 0;
  background: var(--gold);
  color: var(--ink);
}

.route-band {
  margin: 0;
  padding-top: 72px;
  padding-bottom: 72px;
  border: 0;
  border-radius: 0;
  background: var(--navy-deep);
}

.route-band div {
  min-height: 150px;
  border-left: 1px solid rgb(255 255 255 / 0.22);
  background: transparent;
  color: white;
}

.route-band strong {
  color: var(--gold);
  font-size: 2.8rem;
}

.chapter,
.position-section,
.mission-section,
.asset-section,
.problem-section,
.solution-section,
.advantage-section,
.products-section,
.product-house-section,
.contact-section {
  margin-bottom: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.chapter,
.position-section,
.mission-section,
.asset-section,
.problem-section,
.solution-section,
.advantage-section,
.products-section,
.product-house-section {
  padding-top: clamp(72px, 9vw, 132px);
  padding-bottom: clamp(72px, 9vw, 132px);
}

.intro-chapter,
.mission-section,
.problem-section,
.advantage-section,
.product-house-section {
  background: #f4f0e7;
}

.position-section,
.asset-section,
.solution-section,
.products-section {
  background: var(--navy-deep);
  color: white;
}

.position-section .section-code,
.asset-section .section-code,
.solution-section .section-code,
.products-section .section-code {
  color: var(--gold);
}

.position-section .position-left p,
.asset-section .section-head p,
.solution-section .section-head p,
.products-section .product-copy p,
.position-section .clean-list li,
.products-section .clean-list li {
  color: rgb(255 255 255 / 0.7);
}

.position-section .clean-list li,
.products-section .clean-list li {
  border-top-color: rgb(255 255 255 / 0.2);
}

.learning-path article,
.role-grid article,
.mission-road article,
.advantage-grid article,
.product-matrix article,
.from-to div,
.tool-basket,
.talent-supply,
.house-main,
.house-detail,
.contact-panel {
  border-radius: 6px;
}

.learning-path article,
.mission-road article,
.advantage-grid article {
  border-left: 4px solid var(--red);
  background: white;
}

.learning-path article {
  min-height: 236px;
}

.learning-path span,
.advantage-grid span {
  border-radius: 4px;
  background: var(--red);
}

.brief-panel {
  border-radius: 4px;
  background: var(--gold);
}

.from-to div,
.role-grid article,
.product-matrix article {
  border-color: rgb(255 255 255 / 0.14);
  background: #181818;
}

.from-to div:last-child {
  background: var(--red);
}

.from-to span,
.role-grid p,
.product-matrix p {
  color: rgb(255 255 255 / 0.66);
}

.from-to b,
.shift-arrow {
  color: var(--gold);
}

.cycle-line span,
.service-flow span {
  border: 1px solid rgb(255 255 255 / 0.24);
  border-radius: 4px;
  background: transparent;
  color: white;
}

.mission-road article:nth-child(2),
.advantage-grid article:nth-child(2) {
  border-left-color: var(--green);
}

.mission-road article:nth-child(3),
.advantage-grid article:nth-child(3) {
  border-left-color: var(--gold);
}

.mission-road article:nth-child(4),
.advantage-grid article:nth-child(4) {
  border-left-color: var(--ink);
}

.mission-road span {
  border-radius: 4px;
  background: var(--ink);
}

.metric-wall article {
  min-height: 190px;
  border: 1px solid rgb(255 255 255 / 0.14);
  border-left: 4px solid var(--red);
  border-radius: 6px;
  background: #181818;
}

.metric-wall article:nth-child(even) {
  border-left-color: var(--gold);
  background: #181818;
}

.problem-board {
  gap: 0;
}

.tool-basket,
.talent-supply {
  border-color: var(--ink);
  border-radius: 0;
}

.talent-supply {
  background: var(--ink);
}

.pain-cards button,
.house-grid button {
  border-radius: 4px;
}

.pain-cards button:hover,
.house-grid button:hover,
.pain-cards button.active {
  border-color: var(--red);
  background: var(--red);
  color: white;
}

.interaction-note {
  border-radius: 4px;
  border-left: 4px solid var(--red);
}

.engine-grid article {
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 6px;
  background: #181818;
}

.engine-grid article + article {
  background: var(--red);
}

.engine-wheel {
  border-radius: 4px;
}

.advantage-grid article {
  min-height: 235px;
}

.moat-line {
  border-radius: 4px;
  background: var(--gold);
}

.product-matrix span {
  border-top-color: rgb(255 255 255 / 0.18);
  color: var(--gold);
}

.side-axis span,
.house-foundation {
  border-radius: 4px;
}

.roof {
  background: var(--red);
}

.house-grid button.active {
  border-color: var(--red);
  background: var(--red);
}

.house-detail {
  background: var(--ink);
}

.contact-section {
  min-height: 620px;
  padding-top: clamp(72px, 9vw, 132px);
  padding-bottom: clamp(72px, 9vw, 132px);
  background: var(--red);
}

.contact-panel {
  border: 0;
  background: var(--gold);
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.62fr);
  }

  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  main > section {
    padding-right: 20px;
    padding-left: 20px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 40px;
    padding-right: 20px;
    padding-bottom: 40px;
    padding-left: 20px;
  }

  h1 {
    font-size: clamp(3.1rem, 15vw, 4.2rem);
  }

  h2 {
    font-size: clamp(2.35rem, 12vw, 4rem);
  }

  .hero-image {
    position: absolute;
    right: -42px;
    bottom: 0;
    z-index: -1;
    width: 250px;
    max-height: none;
    overflow: hidden;
    opacity: 0.28;
  }

  .hero-image img {
    aspect-ratio: 1;
    object-position: 62% center;
  }

  .hero-image figcaption,
  .hero-support {
    display: none;
  }

  .route-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .route-band div {
    min-height: 112px;
  }
}

@media (max-width: 520px) {
  .hero-metrics {
    gap: 12px;
  }

  .hero-metrics strong {
    font-size: 1.8rem;
  }

  .hero-metrics span {
    font-size: 0.75rem;
  }

  .hero-actions a {
    flex: 1 1 150px;
  }

  .route-band {
    grid-template-columns: 1fr;
  }
}