:root {
  --bg: #f4f8ff;
  --surface: #ffffff;
  --primary: #165dff;
  --primary-dark: #0d45b8;
  --text: #172033;
  --muted: #5e6b85;
  --border: #dce7ff;
  --shadow: 0 16px 40px rgba(22, 93, 255, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f9fbff 0%, #f3f7ff 100%);
  line-height: 1.6;
}

img {
  max-width: 100%;
}

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

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  padding: 1rem 0 4rem;
  background: radial-gradient(circle at top left, rgba(22, 93, 255, 0.16), transparent 28%), var(--bg);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.brand {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  gap: 1.2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 2rem;
  align-items: center;
  padding-top: 2.5rem;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 0.8rem;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  background: rgba(22, 93, 255, 0.1);
  color: var(--primary);
  font-size: 0.83rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.25;
}

h1 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin: 0 0 1rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 680px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow);
}

.button.secondary {
  border: 1px solid var(--border);
  background: var(--surface);
}

.hero-points {
  padding-left: 1.1rem;
  color: var(--muted);
}

.hero-card,
.info-card,
.team-card,
.job-card,
.contact-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.5rem;
}

.hero-card h2 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.card-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid #edf3ff;
}

.card-item:last-child {
  border-bottom: 0;
}

.card-item span {
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.54);
}

.section-heading {
  margin-bottom: 2rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.1vw, 2rem);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
  color: var(--muted);
}

.card-grid,
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.info-card,
.team-card {
  padding: 1.2rem;
}

.info-card h3,
.team-card h3,
.job-card h3,
.contact-box h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.info-card p,
.team-card p,
.job-card p,
.contact-box p,
.jobs-note {
  color: var(--muted);
  margin: 0;
}

.jobs-list {
  display: grid;
  gap: 1rem;
}

.job-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.2rem;
}

.job-card span {
  color: var(--primary);
  font-weight: 700;
  white-space: nowrap;
}

.jobs-note {
  margin-top: 1rem;
}

.contact-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1.4rem 1.5rem;
}

.footer {
  padding: 1.2rem 0 2rem;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .card-grid,
  .team-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-box {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 680px) {
  .nav,
  .nav-links,
  .hero-grid,
  .about-grid,
  .card-grid,
  .team-grid,
  .job-card,
  .footer-inner {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    gap: 0.7rem;
    margin-top: 0.6rem;
  }

  .hero {
    padding-bottom: 3rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .job-card {
    align-items: flex-start;
  }
}