/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 顶部导航 */
.header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 46px;
  z-index: 1000;
}

@media (max-width: 768px) {
  .header {
    top: 0;
  }
}

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

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: white;
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-menu a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 5px;
}

.nav-menu a:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.nav-menu a.active {
  background-color: rgba(255, 255, 255, 0.3);
}

/* 移动端汉堡菜单按钮 */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
  border-radius: 5px;
}

.mobile-menu-toggle:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* 移动端菜单覆盖层 */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.mobile-menu-overlay.active {
  display: block;
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  transition: right 0.3s ease;
  z-index: 1000;
  padding-top: 80px;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-menu li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu a {
  display: block;
  color: white;
  text-decoration: none;
  padding: 1rem 2rem;
  font-weight: 500;
  transition: background-color 0.3s ease;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background-color: rgba(255, 255, 255, 0.2);
}

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 5px;
}

.mobile-menu-close:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* 轮播图 */
.hero-slider {
  position: relative;
  height: 500px;
  overflow: hidden;
  margin-bottom: 3rem;
}

.hero-slider.about-hero {
  height: 300px;
}

.slide {
  position: absolute;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.slide.active {
  opacity: 1;
}

.slide-content {
  text-align: center;
  color: white;
  background: rgba(0, 0, 0, 0.5);
  padding: 2rem;
  border-radius: 10px;
  max-width: 600px;
}

.slide-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  background: linear-gradient(45deg, #ff6b6b, #ee5a24);
  color: white;
  text-decoration: none;
  border-radius: 25px;
  font-weight: bold;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 主要内容区域 */
.main-content {
  min-height: 60vh;
  padding: 3rem 0;
}

.content-section {
  background: white;
  padding: 3rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  margin-bottom: 3rem;
}

.content-section h2 {
  color: #667eea;
  margin-bottom: 2rem;
  font-size: 2.5rem;
  text-align: center;
}

.content-section h3 {
  color: #764ba2;
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
}

.content-section p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
}

.content-section ul {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

.content-section li {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

/* 服务特色 */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

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

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #667eea;
}

.feature-card h3 {
  color: #764ba2;
  margin-bottom: 1rem;
}

/* 客户好评样式优化 */
.testimonials {
  margin: 3rem 0;
}

.testimonials .features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.testimonial-card {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  text-align: left;
  border-left: 4px solid #667eea;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.testimonial-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 4rem;
  color: #667eea;
  opacity: 0.3;
  font-family: serif;
}

.testimonial-stars {
  font-size: 1.2rem;
  color: #ffd700;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.testimonial-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #555;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 1.2rem;
}

.author-info h4 {
  color: #667eea;
  font-size: 1.2rem;
  margin-bottom: 0.2rem;
}

.author-info p {
  color: #888;
  font-size: 0.9rem;
  margin: 0;
}

/* 联系信息 */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.contact-card {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.contact-card h4 {
  color: #667eea;
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.contact-card p {
  margin-bottom: 0.5rem;
}

.contact-card a {
  color: #764ba2;
  text-decoration: none;
}

.contact-card a:hover {
  text-decoration: underline;
}

/* 底部导航 */
.footer {
  background: #2c3e50;
  color: white;
  padding: 2rem 0;
  text-align: center;
  margin-top: 3rem;
}

.footer p {
  margin-bottom: 1rem;
  line-height: 1.8;
}

.footer a {
  color: #3498db;
  text-decoration: none;
  margin: 0 10px;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
  }

  .slide-content h1 {
    font-size: 2rem;
  }

  .slide-content p {
    font-size: 1rem;
  }

  .content-section {
    padding: 2rem;
  }

  .content-section h2 {
    font-size: 2rem;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .testimonials .features {
    grid-template-columns: 1fr;
  }

  .testimonial-card {
    padding: 2rem;
  }

  .contact-info {
    grid-template-columns: 1fr;
  }
}

/* 动画效果 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #667eea;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #764ba2;
}