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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f5f5;
}

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

/* 导航栏 */
.navbar {
  background-color: #0a0a0a;
  color: #fff;
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.navbar-brand .logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: #00d4ff;
  text-decoration: none;
}

.navbar-nav {
  display: flex;
  gap: 20px;
}

.nav-link {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: #00d4ff;
}

/* 主要内容 */
.main-content {
  min-height: calc(100vh - 200px);
}

/* 英雄区域 */
.hero {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 100%);
  color: #fff;
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNjAiIGhlaWdodD0iNjAiIHZpZXdCb3g9IjAgMCA2MCA2MCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZyBmaWxsPSJub25lIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiPjxwYXRoIGQ9Ik0zNiAxOGMzLjMxNCAwIDYtMi42ODYgNi02cy0yLjY4Ni02LTYtNi02IDIuNjg2LTYgNiAyLjY4NiA2IDYgNnptMC0yYzQtMCA2IDItNiA2czIgNiA2IDYgNi0yIDYtNi0yLTYtNi02em0tMTgtMTZjMy4zMTQgMCA2LTIuNjg2IDYtNnMtMi42ODYtNi02LTYtNiAyLjY4Ni02IDYgMi42ODYgNiA2IDZ6IiBzdHJva2U9IiMzMzMiIHN0cm9rZS13aWR0aD0iMSIvPjwvZz48L3N2Zz4=') repeat;
  opacity: 0.1;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  color: #00d4ff;
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, #00d4ff, #0088cc);
  color: #fff;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 212, 255, 0.5);
}

/* 服务部分 */
.services {
  padding: 100px 0;
  background-color: #fff;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 2.5rem;
  color: #1a1a2e;
  margin-bottom: 10px;
}

.section-title p {
  font-size: 1.1rem;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  background: #fff;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  border: 1px solid #eaeaea;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border-color: #00d4ff;
}

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #00d4ff, #0088cc);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 2rem;
  color: #fff;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: #1a1a2e;
}

.service-card p {
  color: #666;
  line-height: 1.6;
}

/* 案例部分 */
.portfolio {
  padding: 100px 0;
  background-color: #f9f9f9;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.portfolio-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.portfolio-item:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.portfolio-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: #fff;
  padding: 30px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
  transform: translateY(0);
}

.portfolio-overlay h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.portfolio-overlay p {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* AI工具部分 */
.aitool {
  padding: 100px 0;
  background: linear-gradient(135deg, #f5f5f5 0%, #e8f4f8 100%);
}

.tool-container {
  background: #fff;
  border-radius: 15px;
  padding: 50px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.tool-form {
  max-width: 600px;
  margin: 0 auto;
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #1a1a2e;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #00d4ff;
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

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

.submit-button {
  background: linear-gradient(135deg, #00d4ff, #0088cc);
  color: #fff;
  border: none;
  padding: 15px 30px;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.submit-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 212, 255, 0.5);
}

/* 团队部分 */
.team {
  padding: 100px 0;
  background-color: #fff;
}

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

.team-member {
  text-align: center;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  background: #fff;
}

.team-member:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #00d4ff, #0088cc);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2rem;
  font-weight: bold;
}

.team-member h3 {
  font-size: 1.3rem;
  margin-bottom: 5px;
  color: #1a1a2e;
}

.team-member p {
  color: #666;
  margin-bottom: 15px;
}

/* 联系部分 */
.contact {
  padding: 100px 0;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: #fff;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: #00d4ff;
}

.contact-info p {
  margin-bottom: 15px;
  line-height: 1.6;
}

.contact-form {
  background: rgba(255, 255, 255, 0.1);
  padding: 40px;
  border-radius: 10px;
  backdrop-filter: blur(10px);
}

.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: #00d4ff;
}

/* 页脚 */
.footer {
  background-color: #0a0a0a;
  color: #fff;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h2 {
  font-size: 1.8rem;
  margin-bottom: 10px;
  color: #00d4ff;
}

.footer-brand p {
  color: #999;
}

.footer-links h3,
.footer-contact h3 {
  font-size: 1.2rem;
  margin-bottom: 15px;
  color: #00d4ff;
}

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

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

.footer-links a {
  color: #999;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #00d4ff;
}

.footer-contact p {
  color: #999;
  margin-bottom: 10px;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 30px;
  text-align: center;
  color: #999;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar .container {
    flex-direction: column;
    gap: 15px;
  }

  .navbar-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .services-grid,
  .portfolio-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

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

  .tool-container {
    padding: 30px;
  }

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .cta-button {
    padding: 12px 24px;
    font-size: 1rem;
  }

  .service-card,
  .team-member {
    padding: 30px;
  }

  .portfolio-item img {
    height: 200px;
  }
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0, 212, 255, 0.3);
  border-radius: 50%;
  border-top-color: #00d4ff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 图片懒加载 */
img {
  transition: opacity 0.3s ease;
}

img.lazy {
  opacity: 0;
}

img.lazy.loaded {
  opacity: 1;
}

/* 代码分割优化 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}