* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: #333;
  line-height: 1.7;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navbar */
.navbar {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  font-size: 22px;
  font-weight: 700;
  color: #1a56a0;
  text-decoration: none;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: #555;
  font-size: 15px;
}

.nav-links a:hover {
  color: #1a56a0;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #1a56a0 0%, #0d3d7a 100%);
  color: #fff;
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 40px;
  margin-bottom: 16px;
}

.hero p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 36px;
}

.btn-primary {
  display: inline-block;
  background: #fff;
  color: #1a56a0;
  padding: 14px 36px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
}

.btn-primary:hover {
  background: #e8f0fb;
}

/* Services */
.services {
  padding: 80px 0;
  background: #f8f9fa;
}

.services h2,
.about h2,
.contact h2 {
  text-align: center;
  font-size: 30px;
  margin-bottom: 48px;
  color: #1a56a0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.service-card {
  background: #fff;
  border-radius: 10px;
  padding: 32px 24px;
  text-align: center;
  border: 1px solid #e8ecf0;
}

.service-card .icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: #1a56a0;
}

.service-card p {
  font-size: 14px;
  color: #666;
}

/* About */
.about {
  padding: 80px 0;
}

.about p {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  font-size: 16px;
  color: #555;
}

/* Contact */
.contact {
  padding: 80px 0;
  background: #f0f5ff;
  text-align: center;
}

.contact-info {
  margin-top: 24px;
  font-size: 16px;
  line-height: 2.2;
}

.contact-info a {
  color: #1a56a0;
}

/* Footer */
.footer {
  background: #1a2740;
  color: #aaa;
  text-align: center;
  padding: 32px 0;
  font-size: 14px;
  line-height: 2;
}

.footer a {
  color: #aaa;
  text-decoration: none;
}

.footer a:hover {
  color: #fff;
}