:root {
  --zxhdx-bg: #f4efe6;
  --zxhdx-bg-soft: #fbf8f2;
  --zxhdx-paper: rgba(255, 252, 246, 0.78);
  --zxhdx-card: rgba(24, 29, 38, 0.72);
  --zxhdx-ink: #1f2430;
  --zxhdx-copy: #3e4657;
  --zxhdx-line: rgba(76, 87, 110, 0.18);
  --zxhdx-accent: #b07c4f;
  --zxhdx-accent-soft: rgba(176, 124, 79, 0.15);
  --zxhdx-cool: #7f9db7;
  --zxhdx-cool-soft: rgba(127, 157, 183, 0.16);
  --zxhdx-shadow: 0 24px 60px rgba(28, 32, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--zxhdx-ink);
  background:
    radial-gradient(circle at top right, rgba(127, 157, 183, 0.16), transparent 26%),
    radial-gradient(circle at 18% 12%, rgba(176, 124, 79, 0.14), transparent 22%),
    linear-gradient(180deg, #fbf8f2 0%, #f4efe6 48%, #efe7db 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)),
    url("images/zxhdx-grid.svg") center/cover no-repeat;
  opacity: 0.6;
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: url("images/zxhdx-orbit.svg") top right/58rem no-repeat;
  opacity: 0.42;
  pointer-events: none;
  z-index: -1;
}

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

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

.zxhdx-shell {
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
  padding-bottom: 48px;
}

.zxhdx-topbar {
  position: sticky;
  top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 18px 0 28px;
  padding: 14px 18px;
  background: rgba(251, 248, 242, 0.78);
  border: 1px solid rgba(79, 90, 110, 0.12);
  border-radius: 22px;
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 32px rgba(35, 42, 55, 0.08);
  z-index: 20;
}

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

.zxhdx-brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  color: #fff;
  font-family: "Times New Roman", "Songti SC", serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: linear-gradient(145deg, #1f2430, #4e6276 58%, #b07c4f);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.zxhdx-brand-text {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.zxhdx-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  color: var(--zxhdx-copy);
  font-size: 14px;
}

.zxhdx-nav a {
  position: relative;
  padding-bottom: 4px;
}

.zxhdx-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--zxhdx-accent), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}

.zxhdx-nav a:hover::after,
.zxhdx-nav a:focus-visible::after {
  transform: scaleX(1);
}

main {
  display: grid;
  gap: 22px;
}

section {
  position: relative;
  padding: 34px;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255, 252, 247, 0.88), rgba(251, 247, 240, 0.76));
  border: 1px solid rgba(79, 90, 110, 0.12);
  box-shadow: var(--zxhdx-shadow);
  overflow: hidden;
}

section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(176, 124, 79, 0.05), transparent 42%, rgba(127, 157, 183, 0.09));
  pointer-events: none;
}

.zxhdx-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.zxhdx-kicker,
.zxhdx-eyebrow {
  margin: 0 0 8px;
  color: var(--zxhdx-accent);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

h1,
h2,
h3,
strong {
  position: relative;
  z-index: 1;
}

h1 {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  line-height: 1.08;
  letter-spacing: 0.02em;
}

h2 {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1.2;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

p,
li,
dd,
dt,
small,
span {
  position: relative;
  z-index: 1;
}

p,
li,
dd {
  color: var(--zxhdx-copy);
  line-height: 1.8;
}

.zxhdx-masthead {
  display: grid;
  grid-template-columns: minmax(0, 1.14fr) minmax(280px, 0.86fr);
  gap: 26px;
  min-height: 620px;
  padding: 48px;
  background:
    linear-gradient(135deg, rgba(255, 252, 247, 0.92), rgba(251, 247, 240, 0.72)),
    url("images/zxhdx-signal.svg") right bottom/36rem no-repeat;
}

.zxhdx-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.zxhdx-hero-summary {
  max-width: 40rem;
  margin: 24px 0 0;
  font-size: 1.02rem;
}

.zxhdx-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.zxhdx-hero-tags span,
.zxhdx-stage-band span {
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255, 251, 245, 0.78);
  border: 1px solid rgba(176, 124, 79, 0.22);
  color: var(--zxhdx-ink);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.48);
}

.zxhdx-hero-stage {
  display: grid;
  align-content: center;
  gap: 16px;
}

.zxhdx-stage-card,
.zxhdx-business-card,
.zxhdx-scene-card,
.zxhdx-contact-card,
.zxhdx-governance-panel,
.zxhdx-position-grid article,
.zxhdx-capability-grid article,
.zxhdx-method-list article,
.zxhdx-cooperation-grid article {
  border-radius: 24px;
}

.zxhdx-stage-card {
  padding: 24px;
  color: rgba(255, 250, 244, 0.94);
  background: linear-gradient(160deg, rgba(24, 29, 38, 0.9), rgba(67, 85, 103, 0.82));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 26px 40px rgba(25, 28, 36, 0.18);
}

.zxhdx-stage-card small {
  display: block;
  margin-bottom: 10px;
  color: rgba(255, 241, 225, 0.74);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.zxhdx-stage-card span {
  display: block;
  margin-top: 12px;
  color: rgba(241, 241, 245, 0.76);
  line-height: 1.7;
}

.zxhdx-stage-card-main {
  min-height: 220px;
  padding-top: 30px;
  background:
    linear-gradient(140deg, rgba(25, 30, 40, 0.94), rgba(54, 73, 93, 0.88)),
    url("images/zxhdx-topology.svg") center/cover no-repeat;
}

.zxhdx-stage-card-main strong {
  display: block;
  font-size: 1.35rem;
}

.zxhdx-stage-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.zxhdx-stage-band {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.zxhdx-position-grid,
.zxhdx-business-grid,
.zxhdx-capability-grid,
.zxhdx-cooperation-grid {
  display: grid;
  gap: 18px;
}

.zxhdx-position-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.zxhdx-position-grid article,
.zxhdx-capability-grid article,
.zxhdx-cooperation-grid article,
.zxhdx-method-list article {
  padding: 24px;
  background: rgba(255, 251, 245, 0.8);
  border: 1px solid rgba(79, 90, 110, 0.12);
}

.zxhdx-business-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.zxhdx-business-card {
  padding: 22px;
  min-height: 220px;
  color: rgba(255, 249, 242, 0.9);
  background:
    linear-gradient(180deg, rgba(38, 45, 57, 0.94), rgba(59, 75, 92, 0.84)),
    linear-gradient(135deg, rgba(176, 124, 79, 0.14), transparent 55%);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.zxhdx-business-card p,
.zxhdx-business-card h3 {
  color: #f6eee2;
}

.zxhdx-method-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
}

.zxhdx-method-lead {
  padding: 28px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(29, 34, 44, 0.9), rgba(71, 88, 107, 0.84)),
    url("images/zxhdx-orbit.svg") center/cover no-repeat;
}

.zxhdx-method-lead p {
  margin: 0;
  color: rgba(247, 240, 230, 0.88);
  font-size: 1.05rem;
}

.zxhdx-method-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.zxhdx-method-list span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--zxhdx-accent);
  font-family: "Times New Roman", serif;
  font-size: 1.3rem;
}

.zxhdx-scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.zxhdx-scene-card {
  overflow: hidden;
  background: rgba(255, 251, 245, 0.86);
  border: 1px solid rgba(79, 90, 110, 0.12);
}

.zxhdx-scene-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.zxhdx-scene-card figcaption {
  padding: 20px 22px 24px;
}

.zxhdx-capability-grid,
.zxhdx-cooperation-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.zxhdx-governance-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: 20px;
  padding: 24px;
  background: linear-gradient(180deg, rgba(251, 247, 241, 0.9), rgba(244, 238, 228, 0.78));
  border: 1px solid rgba(79, 90, 110, 0.12);
}

.zxhdx-governance-copy {
  padding: 8px 4px;
}

.zxhdx-governance-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.zxhdx-governance-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 252, 247, 0.92);
  border: 1px solid rgba(79, 90, 110, 0.1);
}

.zxhdx-governance-steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: var(--zxhdx-accent-soft);
  color: var(--zxhdx-accent);
  font-family: "Times New Roman", serif;
  font-size: 1.15rem;
}

.zxhdx-contact-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 22px;
  padding: 28px;
  background:
    linear-gradient(135deg, rgba(28, 34, 45, 0.94), rgba(71, 89, 108, 0.84)),
    linear-gradient(180deg, rgba(176, 124, 79, 0.2), transparent 42%);
  color: rgba(250, 245, 238, 0.94);
}

.zxhdx-contact-copy p,
.zxhdx-contact-copy h3,
.zxhdx-contact-list dt,
.zxhdx-contact-list dd {
  color: rgba(250, 245, 238, 0.94);
}

.zxhdx-contact-list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.zxhdx-contact-list div {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.zxhdx-contact-list dt {
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.78;
}

.zxhdx-contact-list dd {
  margin: 0;
}

.zxhdx-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 22px;
  padding: 0 6px;
}

.zxhdx-footer p {
  margin: 0;
  font-size: 0.92rem;
}

section:hover,
.zxhdx-scene-card:hover,
.zxhdx-business-card:hover,
.zxhdx-stage-card:hover {
  transform: translateY(-3px);
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

@media (max-width: 1100px) {
  .zxhdx-shell {
    width: min(100% - 32px, 1120px);
  }

  .zxhdx-topbar,
  .zxhdx-masthead,
  .zxhdx-position-grid,
  .zxhdx-business-grid,
  .zxhdx-method-wrap,
  .zxhdx-method-list,
  .zxhdx-scene-grid,
  .zxhdx-capability-grid,
  .zxhdx-governance-panel,
  .zxhdx-cooperation-grid,
  .zxhdx-contact-card {
    grid-template-columns: 1fr 1fr;
  }

  .zxhdx-business-grid,
  .zxhdx-method-list,
  .zxhdx-scene-grid,
  .zxhdx-capability-grid,
  .zxhdx-cooperation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .zxhdx-shell {
    width: min(100% - 20px, 100%);
  }

  .zxhdx-topbar {
    position: static;
    flex-direction: column;
    align-items: stretch;
  }

  .zxhdx-nav {
    gap: 14px;
    justify-content: space-between;
  }

  section,
  .zxhdx-masthead {
    padding: 24px 20px;
    border-radius: 24px;
  }

  .zxhdx-masthead,
  .zxhdx-position-grid,
  .zxhdx-business-grid,
  .zxhdx-method-wrap,
  .zxhdx-method-list,
  .zxhdx-scene-grid,
  .zxhdx-capability-grid,
  .zxhdx-governance-panel,
  .zxhdx-cooperation-grid,
  .zxhdx-contact-card,
  .zxhdx-stage-stack {
    grid-template-columns: 1fr;
  }

  .zxhdx-masthead {
    min-height: auto;
    background:
      linear-gradient(135deg, rgba(255, 252, 247, 0.96), rgba(251, 247, 240, 0.8)),
      url("images/zxhdx-signal.svg") center bottom/24rem no-repeat;
  }

  .zxhdx-section-head,
  .zxhdx-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .zxhdx-contact-card {
    gap: 16px;
  }
}