:root {
  --bg: #eef3f1;
  --panel: rgba(255, 255, 255, 0.8);
  --panel-strong: #ffffff;
  --text: #1a2b2a;
  --muted: #5e7371;
  --line: rgba(32, 68, 64, 0.12);
  --brand: #0f766e;
  --brand-deep: #0d4f4a;
  --accent: #d99c44;
  --dark-panel: #11312f;
  --shadow: 0 24px 60px rgba(18, 48, 45, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --content-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(217, 156, 68, 0.18), transparent 24%),
    linear-gradient(180deg, #f7fbfa 0%, var(--bg) 100%);
  line-height: 1.7;
}

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

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

.page-shell {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 22px;
  margin-bottom: 32px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.brand-logo {
  width: 68px;
  height: 68px;
  object-fit: contain;
  padding: 10px;
  border-radius: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #eef7f5 100%);
  box-shadow: inset 0 0 0 1px rgba(15, 118, 110, 0.08);
}

.brand-copy h1,
.section-heading h2,
.info-card h3,
.module-item h3,
.company-card h3,
.footer-title {
  margin: 0;
}

.brand-kicker {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand);
}

.brand-copy h1 {
  font-size: 30px;
  line-height: 1.15;
}

.brand-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

.site-nav a {
  padding: 8px 12px;
  font-size: 14px;
  color: var(--muted);
  border-radius: 999px;
  transition: background-color 160ms ease, color 160ms ease;
}

.site-nav a:hover {
  color: var(--brand-deep);
  background: rgba(15, 118, 110, 0.08);
}

section {
  margin-bottom: 24px;
}

.intro-card,
.content-section,
.dual-panel,
.mission-strip,
.site-footer {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.intro-card,
.content-section {
  padding: 34px;
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading span {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
}

.section-heading h2 {
  max-width: 760px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: 28px;
  align-items: center;
}

.intro-main p,
.about-copy p,
.dual-panel p {
  margin: 0 0 16px;
  color: #29403f;
  font-size: 16px;
}

.intro-main p:last-child,
.about-copy p:last-child,
.dual-panel p:last-child {
  margin-bottom: 0;
}

.feature-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.feature-chip-row span {
  padding: 8px 14px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.12), rgba(15, 118, 110, 0.06));
  color: var(--brand-deep);
  font-size: 13px;
  border: 1px solid rgba(15, 118, 110, 0.12);
}

.highlight-box,
.info-card,
.module-item,
.company-card {
  padding: 22px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.highlight-label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand);
}

.highlight-box strong {
  font-size: 17px;
  line-height: 1.5;
}

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

.info-card h3,
.module-item h3,
.company-card h3 {
  font-size: 20px;
  line-height: 1.25;
}

.info-card p,
.module-item p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.visual-frame {
  margin: 26px 0 0;
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(180deg, #ffffff 0%, #eef6f4 100%);
  border: 1px solid rgba(15, 118, 110, 0.08);
  box-shadow: 0 24px 60px rgba(18, 48, 45, 0.1);
}

.visual-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.visual-primary {
  aspect-ratio: 5 / 4;
}

.intro-visual {
  margin: 0;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.metric-item {
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 249, 248, 0.92));
  border: 1px solid rgba(15, 118, 110, 0.08);
}

.metric-item strong {
  display: block;
  font-size: 22px;
  line-height: 1.1;
  color: var(--brand-deep);
}

.metric-item span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.mission-strip {
  padding: 34px;
  margin-bottom: 24px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.94), rgba(17, 49, 47, 0.98)),
    linear-gradient(180deg, #0f766e 0%, #11312f 100%);
  border-color: rgba(255, 255, 255, 0.12);
}

.mission-copy {
  max-width: 920px;
}

.mission-copy span {
  display: inline-block;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.mission-copy p {
  margin: 0;
  color: #f5fbfa;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.5;
  font-weight: 500;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.value-card {
  padding: 30px 26px 24px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    linear-gradient(180deg, #194744 0%, var(--dark-panel) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 40px rgba(7, 24, 22, 0.16);
}

.value-card h3 {
  margin: 0;
  color: #ffffff;
  font-size: 22px;
}

.value-card p {
  margin: 14px 0 0;
  color: rgba(236, 245, 244, 0.76);
  font-size: 15px;
}

.value-index {
  display: inline-block;
  margin-bottom: 18px;
  color: rgba(217, 156, 68, 0.95);
  font-size: 14px;
  letter-spacing: 0.14em;
  font-weight: 700;
}

.module-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.module-layout {
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: start;
}

.visual-tall {
  margin: 0;
  height: 100%;
}

.module-featured {
  background: linear-gradient(180deg, #ffffff 0%, #f2f8f7 100%);
  border-color: rgba(15, 118, 110, 0.14);
}

.visual-tall img {
  min-height: 100%;
}

.dual-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.dual-panel {
  padding: 34px;
}

.tag-list,
.audience-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0 0 18px;
  list-style: none;
}

.tag-list li,
.audience-list li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.08);
  color: var(--brand-deep);
  font-size: 14px;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.8fr);
  gap: 22px;
}

.visual-wide {
  aspect-ratio: 16 / 10;
}

.company-card dl {
  margin: 18px 0 0;
}

.company-card div {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.company-card div:first-child {
  padding-top: 0;
  border-top: 0;
}

.company-card dt {
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--muted);
}

.company-card dd {
  margin: 0;
  font-size: 15px;
  color: var(--text);
}

.site-footer {
  padding: 30px 32px 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    linear-gradient(135deg, #103330 0%, #0a2220 100%);
  border-color: rgba(255, 255, 255, 0.08);
}

.site-footer p {
  margin: 0;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  max-width: 720px;
}

.footer-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
  padding: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  flex-shrink: 0;
}

.site-footer .footer-title {
  font-size: 24px;
  color: #ffffff;
}

.footer-subtitle {
  margin-top: 8px;
  color: rgba(225, 240, 238, 0.78);
  font-size: 14px;
}

.footer-summary {
  margin-top: 12px;
  color: rgba(225, 240, 238, 0.72);
  font-size: 14px;
  line-height: 1.8;
}

.footer-links {
  min-width: 240px;
}

.footer-heading {
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 20px;
}

.footer-nav a {
  color: #f0f7f6;
  font-size: 14px;
  transition: color 160ms ease, opacity 160ms ease;
}

.footer-nav a:hover {
  color: #ffffff;
  opacity: 0.92;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
}

.footer-copy {
  color: rgba(225, 240, 238, 0.64);
  font-size: 13px;
}

.record-link {
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}

.record-link:hover {
  color: #ffffff;
}

@media (max-width: 1024px) {
  .site-header,
  .about-layout,
  .intro-grid,
  .dual-section,
  .module-layout,
  .module-list,
  .card-grid,
  .value-grid,
  .metric-row {
    grid-template-columns: 1fr;
  }

  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .card-grid {
    display: grid;
  }

  .visual-tall {
    max-height: 520px;
  }

  .intro-visual {
    order: -1;
  }

  .site-footer {
    padding: 24px;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(calc(100% - 24px), var(--content-width));
    padding-top: 12px;
  }

  .site-header,
  .intro-card,
  .content-section,
  .dual-panel,
  .site-footer,
  .mission-strip {
    padding: 22px;
    border-radius: 22px;
  }

  .brand {
    align-items: flex-start;
  }

  .brand-logo {
    width: 56px;
    height: 56px;
  }

  .brand-copy h1 {
    font-size: 24px;
  }

  .section-heading h2 {
    font-size: 28px;
  }

  .site-nav {
    gap: 8px;
  }

  .site-nav a {
    padding: 6px 10px;
    font-size: 13px;
  }

  .footer-top,
  .footer-brand,
  .footer-bottom {
    flex-direction: column;
  }

  .footer-nav {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}