:root {
  --blue: #06499b;
  --blue-deep: #062f65;
  --ink: #152033;
  --muted: #667085;
  --line: #d8e2ef;
  --panel: #ffffff;
  --soft: #f4f8fc;
  --accent: #18a0a6;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  background: #f8fbff;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(216, 226, 239, 0.85);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: min(300px, 60vw);
}

.brand img {
  display: block;
  width: 100%;
  height: auto;
}

.contact-link {
  flex: 0 0 auto;
  padding: 9px 18px;
  border: 1px solid var(--blue);
  border-radius: 999px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 700;
}

.hero {
  min-height: calc(100vh - 86px);
  display: flex;
  align-items: center;
  padding: clamp(56px, 8vw, 112px) clamp(20px, 5vw, 72px);
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.74) 52%, rgba(233, 244, 255, 0.82) 100%),
    url("./logo.png") right 8vw center / min(720px, 48vw) auto no-repeat;
}

.hero-inner {
  width: min(780px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  color: var(--blue-deep);
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 680px;
  margin-bottom: 34px;
  color: #354155;
  font-size: clamp(18px, 2vw, 22px);
}

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

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 11px 24px;
  border-radius: 8px;
  font-weight: 800;
}

.primary-button {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 12px 24px rgba(6, 73, 155, 0.2);
}

.secondary-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  color: var(--blue-deep);
}

.section {
  padding: clamp(56px, 8vw, 100px) clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

h2 {
  margin-bottom: 12px;
  color: var(--blue-deep);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  color: var(--blue-deep);
  font-size: 21px;
  line-height: 1.3;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.intro {
  color: #354155;
  font-size: 17px;
}

.intro p {
  margin-bottom: 18px;
}

.service-panel,
.value-grid article,
.qr-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 40px rgba(23, 38, 64, 0.07);
}

.service-panel {
  padding: 28px;
}

.service-panel ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.service-panel li {
  padding: 12px 14px;
  border-left: 4px solid var(--accent);
  background: var(--soft);
  color: #24334a;
  font-weight: 700;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 28px;
}

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

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

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  background: #ffffff;
}

.contact-copy > p {
  max-width: 760px;
  color: #354155;
  font-size: 17px;
}

.contact-list {
  display: grid;
  gap: 14px;
  max-width: 760px;
  margin: 30px 0 0;
}

.contact-list div {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.contact-list dt {
  color: var(--muted);
  font-weight: 700;
}

.contact-list dd {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  font-weight: 800;
  overflow-wrap: anywhere;
}

.contact-list a {
  color: var(--blue);
}

.qr-panel {
  padding: 24px;
  text-align: center;
}

.qr-panel img {
  display: block;
  width: min(100%, 260px);
  height: auto;
  margin: 0 auto 18px;
  border: 1px solid var(--line);
}

.qr-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 24px;
  padding: 24px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: var(--blue-deep);
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

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

@media (max-width: 860px) {
  .site-header {
    padding: 14px 20px;
  }

  .contact-link {
    padding: 8px 14px;
    font-size: 14px;
  }

  .hero {
    min-height: auto;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(236, 246, 255, 0.92)),
      url("./logo.png") center 32px / min(430px, 90vw) auto no-repeat;
    padding-top: 220px;
  }

  .content-grid,
  .contact-section,
  .value-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .brand {
    width: min(220px, 56vw);
  }

  h1 {
    font-size: 40px;
  }

  .hero-actions a {
    width: 100%;
  }

  .contact-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}