/* 设计令牌 - 高端男装展示 */
:root {
  --color-primary: #000000;
  --color-secondary: #1a1a1a;
  --color-accent: #1e3a5f;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-background: #ffffff;
  --color-surface: #f8f8f8;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --border-radius: 0.25rem;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 导航栏样式 - 统一深色调 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 2px;
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

.navbar-brand:hover {
  opacity: 0.8;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.navbar-item a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 400;
  font-size: 0.95rem;
  letter-spacing: 1px;
  transition: var(--transition);
  position: relative;
}

.navbar-item a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}

.navbar-item a:hover::after,
.navbar-item a.active::after {
  width: 100%;
}

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

.navbar-item a.active {
  color: var(--color-accent);
}

/* 英雄区域 */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(30, 58, 95, 0.1) 0%, rgba(26, 26, 26, 0.6) 100%);
  z-index: 0;
}

.hero-content {
  text-align: center;
  color: white;
  z-index: 1;
  padding: var(--spacing-md);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 200;
  letter-spacing: 3px;
  margin-bottom: var(--spacing-sm);
  animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  letter-spacing: 2px;
  opacity: 0.9;
  animation: fadeInUp 1s ease-out 0.2s both;
}

/* 网格布局 */
.grid {
  display: grid;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
}

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

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* 卡片样式 */
.card {
  background: var(--color-surface);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: var(--transition);
}

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

.card-content {
  padding: var(--spacing-md);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 1px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.card-description {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 风格分类 */
.style-section {
  padding: var(--spacing-xl) 0;
}

.style-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.style-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.style-card {
  position: relative;
  height: 500px;
  overflow: hidden;
  border-radius: var(--border-radius);
  cursor: pointer;
}

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

.style-card:hover .style-image {
  transform: scale(1.1);
}

.style-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(30, 58, 95, 0.9) 100%);
  padding: var(--spacing-lg);
  color: white;
}

.style-name {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-xs);
}

.style-description {
  font-size: 0.95rem;
  opacity: 0.9;
  line-height: 1.5;
}

/* 工艺展示 */
.craftsmanship {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-surface);
}

.craftsmanship-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.detail-card {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
}

.detail-card:hover {
  box-shadow: var(--shadow-md);
}

.detail-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
}

.detail-title {
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 1px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.detail-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 页脚 */
.footer {
  background-color: var(--color-primary);
  color: white;
  text-align: center;
  padding: var(--spacing-md) 0;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

/* 页面标题 */
.page-header {
  text-align: center;
  padding: var(--spacing-xl) 0;
}

.page-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 200;
  letter-spacing: 3px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar-menu {
    gap: var(--spacing-md);
  }
  
  .navbar-item a {
    font-size: 0.85rem;
  }
  
  .grid {
    padding: var(--spacing-sm);
  }
  
  .style-grid {
    grid-template-columns: 1fr;
  }
  
  .style-card {
    height: 400px;
  }
  
  .hero-content {
    padding: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .navbar-container {
    padding: 0 var(--spacing-xs);
  }
  
  .navbar-menu {
    gap: var(--spacing-sm);
  }
  
  .hero-title {
    letter-spacing: 1px;
  }
  
  .page-title {
    letter-spacing: 1px;
  }
}

/* 加载动画 */
.loading {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.loading.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* 移动端菜单按钮 */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.navbar-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--color-primary);
  margin: 5px 0;
  transition: var(--transition);
}

@media (max-width: 640px) {
  .navbar-toggle {
    display: block;
  }
  
  .navbar-menu {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    padding: var(--spacing-md);
    transform: translateY(-100%);
    transition: transform 0.3s ease;
  }
  
  .navbar-menu.active {
    transform: translateY(0);
  }
}