* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  background: #f5f7fa;
  color: #222;
  line-height: 1.6;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #0b1b33;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.03em;
}

.nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 1rem;
  font-size: 0.95rem;
}

.nav a:hover {
  text-decoration: underline;
}

.section {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.section h2 {
  margin-bottom: 1rem;
  color: #0b1b33;
}

.section h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: #1f3b5c;
}

.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  background: linear-gradient(135deg, #0b1b33, #1f3b5c);
  color: #fff;
}

.hero-content {
  flex: 1 1 300px;
  padding: 3rem 1.5rem;
}

.hero-content h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.hero-content p {
  margin: 0.35rem 0;
}

.hero-image {
  flex: 1 1 250px;
  padding: 3rem 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.van-placeholder {
  width: 100%;
  max-width: 320px;
  height: 200px;
  border-radius: 12px;
  background: #ffffff22;
  border: 1px solid #ffffff55;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.6rem 1.2rem;
  background: #f9b233;
  color: #0b1b33;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
}

.btn:hover {
  background: #ffc75a;
}

ul {
  margin: 0.5rem 0 0.5rem 1.2rem;
}

.contact-form {
  margin-top: 1.5rem;
  background: #ffffff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.contact-form h3 {
  margin-bottom: 0.75rem;
}

.contact-form label {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  border-radius: 4px;
  border: 1px solid #ccd3dd;
  font-size: 0.9rem;
}

.contact-form textarea {
  min-height: 100px;
  resize: vertical;
}

.contact-form button {
  margin-top: 0.5rem;
  padding: 0.6rem 1.2rem;
  background: #0b1b33;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 0.95rem;
  cursor: pointer;
}

.contact-form button:hover {
  background: #1f3b5c;
}

.footer {
  text-align: center;
  padding: 1.5rem;
  background: #0b1b33;
  color: #fff;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
  }

  .nav {
    display: flex;
    flex-wrap: wrap;
  }

  .nav a {
    margin: 0.25rem 0.75rem 0.25rem 0;
  }
}