/* ====== 联系我们页面样式 ====== */
body {
  margin: 0;
  padding: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: #f0f2f5;
  color: #333;
}
.navbar {
  background: #007bff; /* 蓝色导航栏 */
  padding: 10px 20px;
}
.navbar ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: flex-end;
}
.navbar li {
  margin-left: 20px;
}
.navbar a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}
/* 页面主体 */
.container {
  max-width: 1100px;
  margin: 40px auto;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.container h1 {
  text-align: center;
  font-size: 36px;
  color: #0056b3;
  margin-bottom: 20px;
}
.intro-text {
  text-align: center;
  color: #666;
  margin-bottom: 40px;
  line-height: 1.6;
}
.contact-content {
  display: flex;
  gap: 40px;
}
.contact-form {
  flex: 1;
}
.contact-form h2 {
  font-size: 28px;
  color: #007bff;
  margin-bottom: 20px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
  color: #333;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
  box-sizing: border-box;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #007bff;
  box-shadow: 0 0 5px rgba(0, 123, 255, 0.3);
}
.submit-btn {
  background: #007bff;
  color: #fff;
  padding: 12px 30px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.3s;
}
.submit-btn:hover {
  background: #0056b3;
}
.contact-info {
  flex: 1;
}
.contact-info h2 {
  font-size: 28px;
  color: #007bff;
  margin-bottom: 20px;
}
.contact-info p {
  line-height: 1.8;
  margin-bottom: 10px;
}
.contact-info p strong {
  color: #333;
}
.map-placeholder {
  margin-top: 20px;
  text-align: center;
}
.map-placeholder img {
  max-width: 100%;
  height: auto;
  border: 1px solid #ddd;
  border-radius: 4px;
}
.map-placeholder p {
  font-size: 14px;
  color: #888;
  margin-top: 5px;
}
/* 底部版权 */
.footer {
  text-align: center;
  font-size: 12px;
  color: #999;
  padding: 20px;
}

/* ====== 响应式设计 ====== */
@media (max-width: 768px) {
  .navbar ul {
    flex-direction: column;
    align-items: center;
  }
  .navbar li {
    margin: 5px 0;
  }
  .container {
    margin: 20px;
    padding: 15px;
  }
  .container h1 {
    font-size: 28px;
  }
  .contact-content {
    flex-direction: column;
  }
  .contact-form, .contact-info {
    margin-bottom: 30px;
  }
  .contact-form h2, .contact-info h2 {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    margin: 10px;
    padding: 10px;
  }
  .container h1 {
    font-size: 24px;
  }
  .contact-form h2, .contact-info h2 {
    font-size: 20px;
  }
  .form-group input, .form-group textarea {
    font-size: 14px;
  }
  .submit-btn {
    width: 100%;
    padding: 12px;
  }
}