:root {
  color-scheme: light;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: #f6f8fb;
  color: #172033;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f6f8fb;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 128px;
  padding: 30px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(116, 131, 155, 0.16);
  background:
    radial-gradient(circle at 82% 18%, rgba(20, 184, 166, 0.12), transparent 26%),
    linear-gradient(135deg, #ffffff 0%, #f4fbfc 100%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 20px;
}

.brand-mark {
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  border-radius: 8px;
  background:
    radial-gradient(circle at 28% 24%, rgba(142, 228, 219, 0.32), transparent 30%),
    #155e75;
  color: #ffffff;
  box-shadow: 0 16px 36px rgba(21, 94, 117, 0.22);
  font-size: 32px;
  font-weight: 900;
}

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

.brand strong {
  color: #101828;
  font-size: clamp(42px, 5vw, 64px);
  line-height: 1;
  font-weight: 900;
}

.brand small {
  margin-top: 10px;
  color: #667085;
  font-size: 16px;
  font-weight: 700;
}

.header-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  color: #526070;
  font-size: 14px;
}

.header-meta a:hover {
  color: #155e75;
}

.main-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 1px;
  padding: 0 clamp(20px, 5vw, 72px);
  background: #d7dee8;
  box-shadow: 0 10px 28px rgba(16, 24, 40, 0.06);
}

.main-nav a {
  display: grid;
  min-height: 66px;
  place-items: center;
  background: #ffffff;
  color: #172033;
  font-size: clamp(16px, 1.35vw, 22px);
  font-weight: 900;
  line-height: 1.2;
  text-align: center;
}

.main-nav a:hover,
.main-nav a.is-active {
  background: #155e75;
  color: #ffffff;
}

.page-shell {
  min-height: 62vh;
}

.home-hero {
  min-height: 560px;
  display: grid;
  align-items: center;
  padding: 86px clamp(20px, 5vw, 72px);
  background:
    radial-gradient(circle at 8% 20%, rgba(20, 184, 166, 0.18), transparent 28%),
    linear-gradient(135deg, #f8fbff 0%, #eef6f7 48%, #f8fafc 100%);
}

.hero-inner {
  max-width: 920px;
}

.eyebrow,
.section-title span,
.page-hero span {
  display: block;
  margin-bottom: 12px;
  color: #0f766e;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 960px;
  margin-bottom: 22px;
  color: #101828;
  font-size: clamp(40px, 6vw, 74px);
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  color: #101828;
}

p {
  color: #526070;
  line-height: 1.75;
}

.home-hero p {
  max-width: 760px;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0 20px;
  cursor: pointer;
  font-weight: 900;
}

.btn-light,
.btn-primary {
  background: #155e75;
  color: #ffffff;
}

.btn-light:hover,
.btn-primary:hover {
  background: #0e7490;
}

.btn-outline {
  border-color: #b6c3d1;
  background: #ffffff;
  color: #172033;
}

.page-hero {
  min-height: 230px;
  display: grid;
  align-content: center;
  padding: 76px clamp(20px, 5vw, 72px);
  background:
    radial-gradient(circle at 86% 12%, rgba(255, 255, 255, 0.18), transparent 24%),
    linear-gradient(105deg, #123f59 0%, #155e75 44%, #74aeb1 100%);
  color: #ffffff;
}

.page-hero span {
  color: #8ee4db;
}

.page-hero h1 {
  margin-bottom: 14px;
  color: #ffffff;
}

.page-hero p {
  max-width: 740px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
}

.product-showcase {
  padding-top: 0;
}

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

.price-card {
  display: grid;
  min-height: 330px;
  align-content: space-between;
  gap: 24px;
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  background: #ffffff;
  padding: 28px;
  box-shadow: 0 16px 40px rgba(31, 41, 55, 0.08);
}

.price-card.is-featured {
  background:
    radial-gradient(circle at 88% 12%, rgba(142, 228, 219, 0.26), transparent 28%),
    linear-gradient(135deg, #102a43 0%, #155e75 100%);
  color: #ffffff;
}

.price-card.is-featured h3,
.price-card.is-featured p,
.price-card.is-featured .price span {
  color: rgba(255, 255, 255, 0.88);
}

.price-card.is-featured h3,
.price-card.is-featured .price strong {
  color: #ffffff;
}

.price-tag {
  display: inline-flex;
  margin-bottom: 18px;
  border-radius: 999px;
  background: #ecfeff;
  color: #155e75;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 900;
}

.price-card.is-featured .price-tag {
  background: rgba(255, 255, 255, 0.14);
  color: #8ee4db;
}

.price-card h3 {
  margin: 0 0 12px;
  color: #172033;
  font-size: 26px;
}

.price-card p {
  margin-bottom: 0;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.price strong {
  color: #155e75;
  font-size: 42px;
  line-height: 1;
}

.price span {
  color: #667085;
  font-weight: 800;
}

.content-section {
  padding: 72px clamp(20px, 5vw, 72px);
}

.section-title {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-title h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
}

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

.portal-card,
.product-card,
.team-grid article,
.value-list article,
.job-list article,
.contact-info,
.contact-form {
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 16px 40px rgba(31, 41, 55, 0.08);
}

.portal-card {
  min-height: 160px;
  padding: 26px;
}

.portal-card strong {
  display: block;
  margin-bottom: 10px;
  color: #155e75;
  font-size: 24px;
}

.portal-card p,
.product-card p,
.team-grid p,
.value-list p,
.job-list p,
.contact-info p {
  margin-bottom: 0;
}

.notice-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 0 clamp(20px, 5vw, 72px) 72px;
  padding: 26px 30px;
  border: 1px solid #d9e2ec;
  border-left: 8px solid #155e75;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 16px 40px rgba(31, 41, 55, 0.08);
}

.notice-band span {
  display: block;
  margin-bottom: 6px;
  color: #0f766e;
  font-weight: 900;
}

.notice-band strong {
  color: #172033;
  font-size: 22px;
}

.notice-band a {
  color: #155e75;
  font-weight: 900;
}

.two-column,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
  gap: 34px;
  align-items: start;
}

.two-column > div:first-child p {
  color: #42526a;
  font-size: 17px;
  line-height: 1.9;
}

.value-list,
.job-list {
  display: grid;
  gap: 18px;
}

.value-list article,
.job-list article,
.contact-info,
.contact-form {
  padding: 26px;
}

.value-list strong {
  display: block;
  margin-bottom: 10px;
  color: #155e75;
  font-size: 22px;
}

.product-card {
  min-height: 260px;
  padding: 28px;
}

.product-card span {
  display: inline-grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 8px;
  background: #ecfeff;
  color: #155e75;
  font-weight: 900;
}

.product-card h2,
.team-grid h2,
.job-list h2,
.contact-info h2 {
  margin-bottom: 12px;
  color: #172033;
  font-size: 24px;
}

.timeline {
  display: grid;
  gap: 18px;
  border-left: 3px solid #155e75;
  padding-left: 30px;
}

.timeline article {
  position: relative;
  max-width: 880px;
  padding: 20px 24px;
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(31, 41, 55, 0.06);
}

.timeline article::before {
  content: "";
  position: absolute;
  top: 26px;
  left: -39px;
  width: 14px;
  height: 14px;
  border: 4px solid #ffffff;
  border-radius: 999px;
  background: #155e75;
}

.timeline time {
  color: #0f766e;
  font-weight: 900;
}

.timeline h2 {
  margin: 8px 0;
  font-size: 23px;
}

.team-grid article {
  padding: 30px;
}

.avatar {
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 8px;
  background: #155e75;
  color: #ffffff;
  font-weight: 900;
}

.contact-form {
  display: grid;
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: #172033;
  font-weight: 900;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 12px;
  color: #172033;
  resize: vertical;
}

.contact-form input {
  min-height: 44px;
}

.form-result {
  min-height: 24px;
  margin: 0;
  color: #0f766e;
  font-weight: 900;
}

.form-result.is-error {
  color: #b42318;
}

.site-footer {
  display: grid;
  gap: 10px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid #d7dee8;
  background: #ffffff;
  color: #42526a;
  font-size: 16px;
  line-height: 1.8;
}

.footer-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 44px;
  align-items: center;
}

.footer-line a {
  color: #155e75;
  font-weight: 800;
}

.footer-line a:hover {
  color: #0e7490;
}

.footer-note {
  color: #667085;
}

@media (max-width: 980px) {
  .site-header,
  .notice-band {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-meta {
    justify-content: flex-start;
  }

  .main-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    position: static;
    padding: 0;
  }

  .portal-grid,
  .product-grid,
  .pricing-grid,
  .team-grid,
  .two-column,
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .brand {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand strong {
    font-size: 38px;
  }

  .brand-mark {
    width: 64px;
    height: 64px;
    font-size: 26px;
  }

  .main-nav {
    grid-template-columns: 1fr;
  }

  .main-nav a {
    min-height: 54px;
  }

  .home-hero,
  .content-section,
  .page-hero {
    padding-left: 20px;
    padding-right: 20px;
  }
}