:root {
  --ink: #101b16;
  --deep: #13251d;
  --green: #24463a;
  --jade: #27756f;
  --cream: #f5efe3;
  --paper: #fffaf0;
  --line: #d9caa8;
  --gold: #d9a72e;
  --red: #bd342f;
  --text: #263329;
  --muted: #6f766c;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(16, 27, 22, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.55;
}

img {
  display: block;
  width: 100%;
}

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

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 80;
  background: rgba(255, 255, 255, 0.14);
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--gold);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(16, 27, 22, 0.92);
  color: var(--white);
  padding: 16px max(20px, calc((100% - 1120px) / 2));
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  gap: 12px;
  align-items: baseline;
  min-width: 0;
}

.brand span {
  color: var(--gold);
  font-weight: 800;
}

.brand strong {
  overflow: hidden;
  color: rgba(255, 255, 255, 0.88);
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  gap: 6px;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  padding: 8px 12px;
}

.site-nav a:hover,
.site-nav a.active {
  background: rgba(217, 167, 46, 0.18);
  color: var(--white);
}

.hero {
  position: relative;
  min-height: calc(100svh - 66px);
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(16, 27, 22, 0.96), rgba(16, 27, 22, 0.78) 42%, rgba(16, 27, 22, 0.28)),
    rgba(16, 27, 22, 0.34);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(64px, 8vh, 96px) 0 clamp(56px, 7vh, 82px);
}

.eyebrow,
.section-kicker {
  display: flex;
  gap: 14px;
  align-items: center;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.eyebrow::before,
.section-kicker::before {
  display: inline-block;
  width: 26px;
  height: 5px;
  background: currentColor;
  content: "";
}

.hero h1 {
  max-width: 780px;
  margin: 26px 0 26px;
  color: var(--white);
  line-height: 1.08;
  font-weight: 900;
}

.hero-title-main,
.hero-title-sub {
  display: block;
}

.hero-title-main {
  font-size: clamp(42px, 5vw, 68px);
}

.hero-title-sub {
  max-width: 760px;
  margin-top: 12px;
  font-size: clamp(34px, 4.1vw, 56px);
  line-height: 1.16;
}

.hero-lead {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 250, 240, 0.88);
  font-size: clamp(16px, 1.35vw, 20px);
  line-height: 1.78;
}

.hero-bottom {
  max-width: 760px;
  margin-top: 38px;
}

.hero-claim {
  max-width: none;
  margin: 0;
  border-left: 5px solid var(--red);
  background: rgba(255, 250, 240, 0.1);
  color: #f0e4ca;
  padding: 22px 28px;
  font-size: clamp(15.5px, 1.18vw, 17px);
  font-weight: 700;
  line-height: 1.76;
}

.hero-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  background: transparent;
}

.hero-panel span {
  border: 1px solid rgba(217, 167, 46, 0.36);
  background: rgba(16, 27, 22, 0.74);
  color: #f0e4ca;
  font-size: 14px;
  font-weight: 800;
  padding: 10px 14px;
  line-height: 1.35;
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 96px 0;
}

.section h2 {
  margin: 20px 0 0;
  color: var(--ink);
  font-size: clamp(30px, 4.1vw, 50px);
  line-height: 1.16;
  font-weight: 900;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(280px, 0.84fr);
  gap: 64px;
  align-items: end;
}

.split-heading p {
  margin: 20px 0 8px;
  color: var(--muted);
  font-size: 18px;
}

.judgement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 58px;
}

.judgement-grid div {
  border-top: 5px solid var(--gold);
  background: var(--paper);
  padding: 28px;
  min-height: 210px;
  box-shadow: 0 10px 30px rgba(19, 37, 29, 0.08);
}

.judgement-grid div:nth-child(2) {
  border-color: var(--red);
}

.judgement-grid div:nth-child(3) {
  border-color: var(--jade);
}

.judgement-grid small {
  color: var(--red);
  font-size: 28px;
  font-weight: 900;
}

.judgement-grid strong {
  display: block;
  margin-top: 18px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.26;
}

.judgement-grid p {
  margin: 18px 0 0;
  color: var(--muted);
}

.dark-section {
  width: 100%;
  margin: 0;
  background: var(--deep);
  color: var(--white);
}

.culture {
  display: grid;
  grid-template-columns: minmax(360px, 44vw) minmax(0, 1fr);
  gap: min(8vw, 90px);
  align-items: center;
  padding: 0;
}

.culture-image {
  height: 680px;
  overflow: hidden;
}

.culture-image img {
  height: 100%;
  object-fit: cover;
}

.culture-copy {
  max-width: 620px;
  padding: 90px 40px 90px 0;
}

.culture-copy h2,
.dark-section h2 {
  color: var(--white);
}

.culture-copy p,
.dark-section .split-heading p {
  color: rgba(255, 250, 240, 0.78);
}

.anchor-list {
  display: grid;
  gap: 14px;
  margin: 44px 0 0;
}

.anchor-list div {
  display: grid;
  grid-template-columns: 92px 1fr;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

.anchor-list dt {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gold);
  color: var(--ink);
  font-size: 22px;
  font-weight: 900;
}

.anchor-list div:nth-child(2) dt {
  background: var(--red);
  color: var(--white);
}

.anchor-list dd {
  margin: 0;
  color: rgba(255, 250, 240, 0.82);
  padding: 22px 24px;
}

.asset-mosaic {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 310px;
  gap: 18px;
  margin-top: 58px;
}

.asset-card {
  position: relative;
  overflow: hidden;
  min-height: 0;
  background: var(--ink);
}

.asset-card.wide {
  grid-column: span 2;
  grid-row: span 2;
}

.asset-card img {
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.asset-card:hover img {
  transform: scale(1.04);
}

.asset-card::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16, 27, 22, 0.06), rgba(16, 27, 22, 0.92));
  content: "";
}

.asset-card div {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  padding: 24px;
}

.asset-card span {
  display: inline-block;
  margin-bottom: 12px;
  background: var(--gold);
  color: var(--ink);
  font-size: 12px;
  font-weight: 900;
  padding: 5px 9px;
}

.asset-card h3 {
  margin: 0;
  color: var(--white);
  font-size: 22px;
  line-height: 1.22;
}

.asset-card.wide h3 {
  max-width: 620px;
  font-size: clamp(28px, 3.6vw, 42px);
}

.asset-card p {
  max-width: 520px;
  margin: 14px 0 0;
  color: rgba(255, 250, 240, 0.82);
}

.scenario-section h2,
.knowledge h2 {
  max-width: 900px;
}

.scenario-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(180px, 1fr));
  gap: 14px;
  margin-top: 48px;
  overflow-x: auto;
  padding-bottom: 12px;
}

.scenario-strip article {
  min-width: 180px;
  border-bottom: 5px solid var(--gold);
  background: var(--paper);
}

.scenario-strip article:nth-child(2n) {
  border-color: var(--jade);
}

.scenario-strip article:nth-child(3n) {
  border-color: var(--red);
}

.scenario-strip img {
  height: 168px;
  object-fit: cover;
}

.scenario-strip strong {
  display: block;
  padding: 20px 18px 0;
  color: var(--ink);
  font-size: 21px;
}

.scenario-strip p {
  min-height: 92px;
  margin: 0;
  color: var(--muted);
  padding: 12px 18px 22px;
  font-size: 14px;
}

.method {
  padding: 96px max(20px, calc((100% - 1120px) / 2));
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 58px;
}

.method-grid article {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-top: 5px solid var(--red);
  background: rgba(255, 255, 255, 0.07);
  padding: 28px;
  min-height: 210px;
}

.method-grid article:nth-child(n + 4) {
  border-top-color: var(--jade);
}

.method-grid span {
  color: var(--gold);
  font-size: 30px;
  font-weight: 900;
}

.method-grid h3 {
  margin: 18px 0 12px;
  color: var(--white);
  font-size: 22px;
}

.method-grid p {
  margin: 0;
  color: rgba(255, 250, 240, 0.74);
}

.knowledge-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 48px;
  background: var(--deep);
  color: var(--white);
  padding: 34px;
}

.knowledge-map::before,
.knowledge-map::after {
  display: none;
}

.center-node {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-left: 6px solid var(--gold);
  background: var(--paper);
  color: var(--ink);
  padding: 30px 36px;
  text-align: left;
}

.center-node strong,
.center-node span {
  display: block;
}

.center-node strong {
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.15;
}

.center-node span {
  margin-top: 0;
  color: var(--muted);
  font-weight: 800;
  font-size: 18px;
}

.km {
  min-height: 150px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-top: 5px solid var(--gold);
  background: rgba(255, 255, 255, 0.08);
  padding: 22px;
}

.km b {
  display: block;
  margin-bottom: 12px;
  color: var(--white);
  font-size: 21px;
}

.km span {
  color: rgba(255, 250, 240, 0.76);
  font-size: 14px;
}

.km-2 {
  border-top-color: var(--red);
}

.km-4 {
  border-top-color: var(--jade);
}

.km-5 {
  border-top-color: #91a889;
}

.km-6 {
  border-top-color: var(--red);
}

.delivery .split-heading {
  align-items: start;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 58px;
}

.timeline article {
  border-left: 5px solid var(--gold);
  background: var(--paper);
  padding: 28px;
  min-height: 216px;
}

.timeline article:nth-child(1) {
  border-color: var(--red);
}

.timeline article:nth-child(4) {
  border-color: var(--jade);
}

.timeline span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

.timeline h3 {
  margin: 18px 0 12px;
  color: var(--ink);
  font-size: 25px;
}

.timeline p {
  margin: 0;
  color: var(--muted);
}

.metric-band {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin-top: 44px;
  background: var(--line);
}

.metric-band div {
  background: var(--deep);
  color: var(--white);
  padding: 22px;
}

.metric-band b {
  display: block;
  color: var(--gold);
  font-size: 20px;
}

.metric-band span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 250, 240, 0.76);
  font-size: 13px;
}

.final-cta {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.final-cta img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.final-cta::after {
  position: absolute;
  inset: 0;
  background: rgba(16, 27, 22, 0.58);
  content: "";
}

.final-cta div {
  position: relative;
  z-index: 2;
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 134px 0;
}

.final-cta h2 {
  margin: 26px 0 24px;
  color: var(--white);
  font-size: clamp(34px, 5vw, 68px);
  line-height: 1.12;
}

.final-cta p:last-child {
  max-width: 760px;
  color: rgba(255, 250, 240, 0.82);
  font-size: 20px;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
    padding: 14px 20px;
  }

  .site-nav {
    width: 100%;
    flex-wrap: wrap;
    overflow-x: auto;
  }

  .hero-content {
    padding-top: 72px;
    padding-bottom: 64px;
  }

  .hero-bottom {
    max-width: 720px;
  }

  .hero-panel {
    max-width: 620px;
  }

  .split-heading,
  .culture,
  .method-grid {
    grid-template-columns: 1fr;
  }

  .culture-image {
    height: 380px;
  }

  .culture-copy {
    max-width: none;
    padding: 64px 20px 78px;
  }

  .judgement-grid,
  .timeline,
  .metric-band {
    grid-template-columns: 1fr;
  }

  .asset-mosaic {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 280px;
  }

  .knowledge-map {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    min-height: 0;
    padding: 20px;
  }

  .knowledge-map::before,
  .knowledge-map::after {
    display: none;
  }

  .center-node,
  .km,
  .km-1,
  .km-2,
  .km-3,
  .km-4,
  .km-5,
  .km-6 {
    position: static;
    width: auto;
    transform: none;
  }
}

@media (max-width: 640px) {
  .brand {
    flex-direction: column;
    gap: 2px;
  }

  .brand strong {
    white-space: normal;
  }

  .site-nav {
    gap: 4px;
  }

  .site-nav a {
    font-size: 12.5px;
    padding: 6px 8px;
  }

  .hero-content {
    width: min(100% - 28px, 1120px);
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .hero-title-main {
    font-size: 38px;
  }

  .hero-title-sub {
    margin-top: 10px;
    font-size: 31px;
  }

  .hero-lead {
    font-size: 15.5px;
    line-height: 1.72;
  }

  .hero-claim {
    padding: 18px 20px;
    font-size: 14.5px;
  }

  .hero-panel {
    gap: 8px;
  }

  .hero-panel span {
    font-size: 12.8px;
    padding: 8px 10px;
  }

  .section {
    width: min(100% - 28px, 1120px);
    padding: 72px 0;
  }

  .asset-mosaic {
    grid-template-columns: 1fr;
    grid-auto-rows: 300px;
  }

  .asset-card.wide {
    grid-column: span 1;
    grid-row: span 1;
  }

  .anchor-list div {
    grid-template-columns: 72px 1fr;
  }

  .center-node {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 28px;
  }

  .final-cta div {
    width: calc(100% - 28px);
    padding: 96px 0;
  }
}