/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #2e54a7;
  --secondary-color: #0cbaba;
  --accent-color: #f39c12;
  --dark-color: #222831;
  --light-color: #f5f5f5;
  --text-color: #333333;
  --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

body {
  font-family: 'Noto Sans SC', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: #f9f9f9;
  overflow-x: hidden;
}

/* 通用容器 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 12px 24px;
  background: var(--gradient);
  color: white;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.btn:hover {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

/* 头部导航 */
header {
  background: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo svg {
  height: 32px;
  width: auto;
  margin-right: 8px;
}

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

.nav-links li {
  margin-left: 20px;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--primary-color);
}

/* 英雄区域 */
.hero {
  background: var(--gradient);
  color: white;
  padding: 100px 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

/* 服务区域 */
.services {
  padding: 80px 0;
  background-color: white;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  font-size: 2.2rem;
  color: var(--primary-color);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.service-card {
  background: white;
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.service-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--dark-color);
}

.service-card p {
  font-size: 1rem;
  color: #666;
}

/* 关于我们 */
.about {
  padding: 80px 0;
  background-color: #f5f5f5;
}

.about-content {
  display: flex;
  align-items: center;
  gap: 50px;
}

.about-text {
  flex: 1;
}

.about-text h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.about-text p {
  margin-bottom: 15px;
  font-size: 1.1rem;
}

.about-image {
  flex: 1;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* 流程部分 */
.process {
  padding: 80px 0;
  background-color: white;
}

.process-steps {
  display: flex;
  justify-content: space-between;
  margin-top: 50px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 220px;
  text-align: center;
  padding: 20px;
  position: relative;
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 1.4rem;
  margin: 0 auto 20px;
}

.step h3 {
  margin-bottom: 15px;
  color: var(--dark-color);
}

.step p {
  color: #666;
}

.step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 25px;
  right: -15px;
  width: 30px;
  height: 2px;
  background: #ddd;
}

/* 联系我们 */
.contact {
  padding: 80px 0;
  background-color: #f5f5f5;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.contact-info p {
  margin-bottom: 20px;
}

.contact-methods {
  margin-top: 30px;
}

.contact-method {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.contact-icon {
  width: 24px;
  margin-right: 15px;
}

.contact-text {
  font-size: 1.1rem;
}

.contact-form {
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: inherit;
}

.form-group textarea {
  height: 150px;
  resize: vertical;
}

/* 页脚 */
footer {
  background: var(--dark-color);
  color: white;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-column h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  color: var(--secondary-color);
}

.footer-column ul {
  list-style: none;
}

.footer-column ul li {
  margin-bottom: 10px;
}

.footer-column a {
  color: #aaa;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-column a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  color: #aaa;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.footer-logo svg {
  height: 30px;
  width: auto;
  margin-right: 8px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    margin-top: 15px;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-links li {
    margin: 8px 0;
    margin-left: 0;
  }
  
  .mobile-toggle {
    display: block;
    position: absolute;
    right: 20px;
    top: 20px;
  }
  
  .hero {
    padding: 60px 0;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .about-content {
    flex-direction: column;
  }
  
  .process-steps {
    flex-direction: column;
  }
  
  .step {
    margin-bottom: 30px;
  }
  
  .step:not(:last-child)::after {
    display: none;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}