:root {
  --primary-color: #4a90e2;
  --secondary-color: #f5f5f5;
  --accent-color: #ff6b6b;
  --text-color: #333;
  --light-text: #666;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text-color);
  line-height: 1.6;
}

/* 导航栏样式 */
#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-container a {
  color: var(--text-color);
  text-decoration: none;
  margin: 0 1rem;
  transition: color 0.3s;
}

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

.contact-btn {
  background: var(--primary-color);
  color: white;
  padding: 0.5rem 1.5rem;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s;
}

.contact-btn:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* 首页样式 */
#home {
  height: 100vh;
  background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.hero {
  max-width: 800px;
  padding: 2rem;
}

.profile-img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1.5rem;
  border: 5px solid var(--primary-color);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.5rem;
  color: var(--light-text);
  margin-bottom: 2rem;
}

.learn-more {
  background: var(--primary-color);
  color: white;
  padding: 0.8rem 2rem;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s;
}

.learn-more:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* 滚动动画 */
.hidden {
  opacity: 0;
  transition: all 1s;
}

.show {
  opacity: 1;
}

#home.hidden {
  transform: translateY(-50px);
}

#home.show {
  transform: translateY(0);
}

#about.hidden {
  transform: translateX(-50px);
}

#about.show {
  transform: translateX(0);
}

#education.hidden {
  transform: translateX(50px);
}

#education.show {
  transform: translateX(0);
}

#honors.hidden {
  transform: translateY(50px);
}

#honors.show {
  transform: translateY(0);
}

#contact.hidden {
  transform: scale(0.9);
}

#contact.show {
  transform: scale(1);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-container {
    padding: 1rem;
  }
  
  .nav-container a {
    margin: 0 0.5rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.2rem;
  }
}