/* 设计令牌 */
:root {
  --bg-primary: #f5f5f5;
  --bg-secondary: #ffffff;
  --accent: #8d6e63;
  --text-primary: #333333;
  --text-secondary: #666666;
  --border-light: #e0e0e0;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 全局重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
}

/* 容器布局 */
.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;
  box-shadow: var(--shadow);
}

.navbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.navbar-logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent);
  text-decoration: none;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

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

.navbar-link {
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

.navbar-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

.navbar-link:hover {
  color: var(--accent);
}

.navbar-link:hover::after {
  width: 100%;
}

/* 主内容区域 */
main {
  margin-top: 80px;
  min-height: calc(100vh - 120px);
}

/* 首页英雄区域 */
.hero {
  height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  text-align: center;
}

.hero-content {
  animation: fadeInUp 1s ease-out;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 12px 30px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: #6d4c41;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(141, 110, 99, 0.3);
}

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

/* 卡片样式 */
.card {
  background: var(--bg-secondary);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

.card:hover .card-image {
  transform: scale(1.05);
}

.card-content {
  padding: 1.5rem;
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.card-text {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 工艺页面样式 */
.process-section {
  padding: 4rem 0;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

.process-item {
  text-align: center;
}

.process-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
}

.process-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.process-description {
  color: var(--text-secondary);
}

/* 系法页面样式 */
.styling-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.styling-item {
  background: var(--bg-secondary);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.styling-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.styling-content {
  padding: 1.5rem;
}

.styling-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.styling-steps {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* 灵感页面样式 */
.inspiration-section {
  padding: 4rem 0;
}

.inspiration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.inspiration-item {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  height: 300px;
}

.inspiration-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.inspiration-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
  color: white;
  padding: 2rem 1rem 1rem;
  transform: translateY(100%);
  transition: var(--transition);
}

.inspiration-item:hover .inspiration-image {
  transform: scale(1.1);
}

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

/* 页脚 */
footer {
  background: var(--text-primary);
  color: var(--bg-secondary);
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
}

/* 页面标题 */
.page-title {
  text-align: center;
  font-size: 2.5rem;
  margin: 3rem 0;
  color: var(--text-primary);
}

/* 段落间距 */
.section {
  padding: 4rem 0;
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar-menu {
    flex-direction: column;
    gap: 1rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .page-title {
    font-size: 2rem;
  }
  
  .container {
    padding: 0 15px;
  }
  
  .navbar-content {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.5rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
  
  .process-grid,
  .styling-grid,
  .inspiration-grid {
    grid-template-columns: 1fr;
  }
}