:root {
  --ink: #14223a;
  --muted: #627086;
  --line: #dce6ee;
  --blue: #58bde1;
  --deep-blue: #1c7fa6;
  --green: #99cc68;
  --pink: #ed8cb2;
  --yellow: #f6c94c;
  --mint: #edf9f5;
  --paper: #ffffff;
  --soft: #f7fafc;
  --shadow: 0 18px 50px rgba(36, 88, 112, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    "Noto Sans SC",
    "Microsoft YaHei",
    "PingFang SC",
    Arial,
    sans-serif;
  line-height: 1.65;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(220, 230, 238, 0.84);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}

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

.brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand strong {
  display: block;
  font-size: 18px;
  line-height: 1.2;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0;
}

.desktop-nav {
  display: flex;
  gap: 28px;
  color: #33435a;
  font-size: 15px;
}

.desktop-nav a {
  padding: 8px 0;
}

.desktop-nav a:hover {
  color: var(--deep-blue);
}

.nav-cta,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.nav-cta,
.primary-button {
  color: #ffffff;
  background: var(--deep-blue);
  box-shadow: 0 12px 24px rgba(28, 127, 166, 0.22);
}

.secondary-button {
  color: var(--deep-blue);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(28, 127, 166, 0.24);
}

.nav-cta:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
}

.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 86px clamp(20px, 6vw, 88px) 112px;
  background: #f7fbfd;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.86) 42%, rgba(255, 255, 255, 0.2) 100%),
    url("assets/jaundice-device-hand.jpg") right center / cover no-repeat;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 12px;
  content: "";
  background: linear-gradient(90deg, var(--green), var(--blue), var(--pink), var(--yellow));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--deep-blue);
  font-size: 14px;
  font-weight: 800;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(40px, 6vw, 74px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 640px;
  margin-bottom: 32px;
  color: #40506a;
  font-size: 20px;
}

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

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-strip div {
  padding: 28px clamp(18px, 4vw, 48px);
  background: #ffffff;
}

.proof-strip strong {
  display: block;
  color: var(--deep-blue);
  font-size: 34px;
  line-height: 1;
}

.proof-strip span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 15px;
}

section {
  padding: 88px clamp(20px, 6vw, 88px);
}

.section-band {
  background:
    linear-gradient(180deg, rgba(237, 249, 245, 0.92), rgba(255, 255, 255, 0.9)),
    #f7fbfd;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 54px;
  align-items: start;
}

.section-copy p,
.section-heading p,
.product-copy p,
.contact-copy p,
.consumer-tool p {
  color: var(--muted);
  font-size: 18px;
}

.mission-grid,
.solution-grid,
.journey-grid,
.trust-list,
.credential-grid,
.case-grid {
  display: grid;
  gap: 18px;
}

.mission-grid {
  grid-template-columns: 1fr;
}

.mission-grid article,
.solution-card,
.journey-grid article,
.trust-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(25, 65, 88, 0.08);
}

.mission-grid article {
  padding: 26px;
}

.mission-grid span,
.tag {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--deep-blue);
  font-size: 13px;
  font-weight: 800;
}

.mission-grid h3 {
  margin-bottom: 0;
}

.section-heading {
  max-width: 840px;
  margin-bottom: 40px;
}

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

.solution-card {
  padding: 30px;
}

.solution-card.feature-card {
  border-top: 5px solid var(--green);
}

.solution-card:nth-child(2) {
  border-top: 5px solid var(--blue);
}

.solution-card:nth-child(3) {
  border-top: 5px solid var(--pink);
}

.solution-card p,
.solution-card li,
.journey-grid p,
.trust-list p {
  color: var(--muted);
}

.solution-card ul {
  display: grid;
  gap: 8px;
  margin: 20px 0 0;
  padding-left: 20px;
}

.product {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(0, 0.9fr);
  gap: 62px;
  align-items: center;
}

.product-visual {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.product-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.product-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 28px;
}

.product-points div {
  min-height: 132px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.product-points strong {
  display: block;
  margin-bottom: 8px;
  color: var(--deep-blue);
  font-size: 20px;
}

.product-points span {
  color: var(--muted);
  font-size: 14px;
}

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

.journey-grid article {
  min-height: 230px;
  padding: 26px;
}

.journey-grid span {
  display: block;
  margin-bottom: 26px;
  color: var(--green);
  font-size: 34px;
  font-weight: 900;
}

.trust {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
  gap: 50px;
}

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

.trust-list article {
  min-height: 184px;
  padding: 26px;
}

.credentials {
  background: #ffffff;
}

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

.credential-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(25, 65, 88, 0.08);
}

.credential-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top center;
  background: #f8fafc;
  border-bottom: 1px solid var(--line);
}

.credential-card div {
  min-height: 128px;
  padding: 18px;
}

.credential-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--deep-blue);
  font-size: 13px;
  font-weight: 800;
}

.credential-card h3 {
  margin-bottom: 0;
  font-size: 18px;
}

.customers {
  padding-top: 76px;
}

.customer-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.customer-cloud span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(28, 127, 166, 0.22);
  border-radius: 8px;
  color: #28415b;
  background: rgba(255, 255, 255, 0.8);
  font-weight: 700;
}

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

.case-grid article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(25, 65, 88, 0.08);
}

.case-grid img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
  border-bottom: 1px solid var(--line);
}

.case-grid h3 {
  margin: 22px 22px 8px;
}

.case-grid p {
  margin: 0 22px 24px;
  color: var(--muted);
}

.consumer-tool {
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  background:
    linear-gradient(90deg, rgba(28, 127, 166, 0.92), rgba(28, 127, 166, 0.78)),
    url("assets/jaundice-device-front.jpg") right center / contain no-repeat;
  color: #ffffff;
}

.consumer-tool div {
  max-width: 760px;
}

.consumer-tool .eyebrow,
.consumer-tool p {
  color: rgba(255, 255, 255, 0.86);
}

.consumer-tool .primary-button {
  flex: 0 0 auto;
  color: var(--deep-blue);
  background: #ffffff;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 54px;
  align-items: start;
  background: #ffffff;
}

.contact-panel {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  box-shadow: var(--shadow);
}

.contact-panel div {
  padding: 26px;
  background: #ffffff;
}

.contact-panel span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 14px;
}

.contact-panel a,
.contact-panel p {
  margin: 0;
  color: var(--ink);
  font-size: 20px;
  font-weight: 800;
}

.medical-note {
  padding-top: 30px;
  padding-bottom: 30px;
  color: #6b5a21;
  background: #fff7d7;
}

.medical-note p {
  max-width: 1180px;
  margin: 0 auto;
  font-size: 15px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px clamp(20px, 6vw, 88px);
  color: #ffffff;
  background: #172236;
}

.site-footer a {
  color: #b9e6f6;
}

@media (max-width: 980px) {
  .desktop-nav {
    display: none;
  }

  .hero {
    min-height: 760px;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.82) 48%, rgba(255, 255, 255, 0.35) 100%),
      url("assets/jaundice-device-hand.jpg") center bottom / cover no-repeat;
  }

  .proof-strip,
  .solution-grid,
  .journey-grid,
  .product-points,
  .trust-list,
  .credential-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro,
  .product,
  .trust,
  .contact {
    grid-template-columns: 1fr;
  }

  .case-grid {
    grid-template-columns: 1fr;
  }

  .consumer-tool {
    display: grid;
    background:
      linear-gradient(180deg, rgba(28, 127, 166, 0.94), rgba(28, 127, 166, 0.86)),
      url("assets/jaundice-device-front.jpg") right bottom / 50% auto no-repeat;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 64px;
    padding: 10px 16px;
  }

  .brand img {
    width: 40px;
    height: 40px;
  }

  .brand small {
    display: none;
  }

  .nav-cta {
    min-height: 38px;
    padding: 0 12px;
    font-size: 14px;
  }

  .hero {
    min-height: calc(100vh - 64px);
    padding: 58px 20px 92px;
  }

  h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 30px;
  }

  .hero-lead,
  .section-copy p,
  .section-heading p,
  .product-copy p,
  .contact-copy p,
  .consumer-tool p {
    font-size: 16px;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  section {
    padding: 64px 20px;
  }

  .proof-strip,
  .solution-grid,
  .journey-grid,
  .product-points,
  .trust-list,
  .credential-grid {
    grid-template-columns: 1fr;
  }

  .customer-cloud span {
    width: 100%;
  }

  .product-visual img {
    aspect-ratio: 4 / 3;
  }

  .site-footer {
    display: grid;
    gap: 12px;
  }
}