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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

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

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo h1 {
  font-size: 1.5rem;
  font-weight: bold;
  color: #e74c3c;
}

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

.nav-menu a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-menu a:hover {
  color: #e74c3c;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #333;
  margin: 3px 0;
  transition: 0.3s;
}

/* 移动端导航菜单 */
.nav-menu.active {
  display: flex;
  position: fixed;
  top: 70px;
  left: 0;
  width: 100%;
  background: white;
  flex-direction: column;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 999;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* 英雄区域 */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 800px;
  padding: 0 20px;
}

.hero-title {
  font-size: 4rem;
  font-weight: bold;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  opacity: 0.9;
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  opacity: 0.8;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 30px;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-primary {
  background: #e74c3c;
  color: white;
}

.btn-primary:hover {
  background: #c0392b;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: white;
  color: #667eea;
}

/* 通用区域样式 */
.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #2c3e50;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: #e74c3c;
  border-radius: 2px;
}

/* 理论基础区域 */
.theory-section {
  background: #f8f9fa;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.principle-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.principle-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.principle-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.principle-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #2c3e50;
}

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

/* 流派区域 */
.schools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.school-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.school-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.school-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 2rem;
  text-align: center;
}

.school-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.school-card h3 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.school-motto {
  opacity: 0.9;
  font-style: italic;
}

.school-description {
  padding: 2rem;
}

.school-description p {
  margin-bottom: 1rem;
  color: #666;
}

.school-description ul {
  list-style: none;
  padding-left: 0;
}

.school-description li {
  padding: 0.5rem 0;
  color: #555;
  position: relative;
  padding-left: 1.5rem;
}

.school-description li::before {
  content: "•";
  color: #e74c3c;
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* 食谱区域 */
.recipes-section {
  background: #f8f9fa;
}

.recipe-categories {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.category-btn {
  padding: 10px 20px;
  border: 2px solid #e74c3c;
  background: transparent;
  color: #e74c3c;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.category-btn.active,
.category-btn:hover {
  background: #e74c3c;
  color: white;
}

.recipes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.recipe-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  cursor: pointer;
}

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

.recipe-image {
  height: 200px;
  background: linear-gradient(45deg, #ff6b6b, #feca57);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.recipe-content {
  padding: 1.5rem;
}

.recipe-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: #2c3e50;
}

.recipe-school {
  color: #e74c3c;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.recipe-description {
  color: #666;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.recipe-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #888;
  margin-bottom: 1rem;
}

.recipe-actions {
  margin-bottom: 1rem;
}

.toggle-steps-btn {
  background-color: #e74c3c;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.toggle-steps-btn:hover {
  background-color: #c0392b;
}

.recipe-steps {
  border-top: 1px solid #eee;
  padding-top: 1rem;
  margin-top: 1rem;
}

.recipe-steps h4 {
  margin-bottom: 0.5rem;
  color: #2c3e50;
}

.recipe-steps ol {
  padding-left: 20px;
  color: #666;
  line-height: 1.8;
}

.recipe-card.is-expanded {
  /* Optional: Add a style for when the card is expanded */
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* 法器指南区域 */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.tool-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.tool-card:hover {
  transform: translateY(-10px);
}

.tool-image {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.tool-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #2c3e50;
}

.tool-rating {
  margin-bottom: 1rem;
}

.stars {
  color: #f39c12;
  font-size: 1.2rem;
  margin-right: 0.5rem;
}

.rating-text {
  color: #666;
  font-size: 0.9rem;
}

.tool-card p {
  color: #666;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.tool-features {
  list-style: none;
  text-align: left;
}

.tool-features li {
  padding: 0.3rem 0;
  color: #555;
}

/* 页脚 */
.footer {
  background: #2c3e50;
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: 1rem;
  color: #ecf0f1;
}

.footer-section p,
.footer-section li {
  color: #bdc3c7;
  line-height: 1.6;
}

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

.footer-section a {
  color: #3498db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: #2980b9;
}

.footer-bottom {
  border-top: 1px solid #34495e;
  padding-top: 1rem;
  text-align: center;
  color: #95a5a6;
  font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
  }

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

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

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

  .principles-grid,
  .schools-grid,
  .recipes-grid,
  .tools-grid {
    grid-template-columns: 1fr;
  }

  .recipe-categories {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 1rem;
  }

  .category-btn {
    white-space: nowrap;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .section {
    padding: 60px 0;
  }

  .principle-card,
  .school-description,
  .recipe-content,
  .tool-card {
    padding: 1.5rem;
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* 滚动行为 */
html {
  scroll-behavior: smooth;
}