/* style.css */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans SC', sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.section {
  padding: 80px 0;
}

.bg-light {
  background-color: #f9f9fb;
}

h2 {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: 50px;
  color: #0a2e5c;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 5%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0a2e5c;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-menu a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: #0a2e5c;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #0a2e5c;
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero 首屏 */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f0f4ff 0%, #e6edff 100%);
  padding-top: 70px;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: 0 20px;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  color: #0a2e5c;
  line-height: 1.3;
}

.hero p {
  font-size: 1.3rem;
  color: #555;
}

/* About */
.about-content > div {
  margin-bottom: 25px;
}

.about-content h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
  color: #0a2e5c;
}

.values {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 10px;
}

.values span {
  background: #eef4ff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.95rem;
}

.philosophy p {
  font-size: 1.4rem;
  font-weight: 500;
  color: #0a2e5c;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.service-card {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s;
  text-align: center;
}

.service-card:hover {
  transform: translateY(-5px);
}

.service-card h3 {
  color: #0a2e5c;
  margin-bottom: 15px;
}

/* Cases */
.cases-list p {
  margin-bottom: 12px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Clients */
.clients-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.clients-logos span {
  background: #eef4ff;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 0.95rem;
  color: #0a2e5c;
}

/* Contact */
#contact .note {
  margin-top: 20px;
  font-style: italic;
  color: #0a2e5c;
  font-weight: 500;
}

/* Footer */
footer {
  background: #0a2e5c;
  color: white;
  text-align: center;
  padding: 20px 0;
  font-size: 0.95rem;
}

/* 响应式 */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 10px rgba(0,0,0,0.1);
    padding: 20px 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .hamburger {
    display: flex;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .values span,
  .clients-logos span {
    padding: 6px 12px;
    font-size: 0.9rem;
  }
}