/* 全局样式 - 极简主义设计风格 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500&display=swap');

:root {
  /* 色彩系统 */
  --color-bg: #fefefe;
  --color-text: #333;
  --color-accent: #a86a5e;
  --color-muted: #999;
  --color-border: #e5e5e5;
  
  /* 间距系统 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  
  /* 字体系统 */
  --font-primary: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  
  /* 过渡效果 */
  --transition-smooth: all 0.3s ease;
  --transition-slow: all 0.5s ease;
}

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

/* 导航栏样式 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-smooth);
  padding: var(--spacing-sm) 0;
}

.navbar.transparent {
  background: transparent;
}

.navbar.scrolled {
  background: rgba(254, 254, 254, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: var(--font-medium);
  letter-spacing: 2px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: var(--font-normal);
  letter-spacing: 1px;
  transition: var(--transition-smooth);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

/* 主内容区域 */
main {
  margin-top: 80px;
  min-height: calc(100vh - 160px);
}

/* 英雄区块 */
.hero {
  height: calc(100vh - 80px);
  position: relative;
  overflow: hidden;
}

.swiper {
  width: 100%;
  height: 100%;
  position: relative;
}

.swiper-slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.5s ease;
}

.swiper-slide.active {
  opacity: 1;
}

.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  z-index: 10;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: var(--font-light);
  letter-spacing: 8px;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.explore-btn {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: transparent;
  border: 1px solid white;
  color: white;
  text-decoration: none;
  letter-spacing: 2px;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.explore-btn:hover {
  background: white;
  color: var(--color-text);
}

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

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* 瀑布流布局 */
.masonry {
  columns: 3;
  column-gap: var(--spacing-sm);
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--spacing-sm);
}

/* 卡片样式 */
.card {
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

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

.card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: white;
  padding: var(--spacing-md);
  transform: translateY(100%);
  transition: var(--transition-smooth);
}

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

/* 系列页面样式 */
.series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
}

.series-card {
  aspect-ratio: 4/5;
  position: relative;
  cursor: pointer;
}

.series-title {
  position: absolute;
  bottom: var(--spacing-md);
  left: var(--spacing-md);
  color: white;
  font-size: 1.5rem;
  font-weight: var(--font-light);
  letter-spacing: 2px;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
}

/* 单品页面样式 */
.items-container {
  padding: var(--spacing-lg);
}

.category-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.category-tab {
  padding: var(--spacing-xs) var(--spacing-md);
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition-smooth);
  letter-spacing: 1px;
}

.category-tab.active,
.category-tab:hover {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-sm);
}

.item-card {
  aspect-ratio: 3/4;
  position: relative;
}

.item-info {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  opacity: 0;
  transition: var(--transition-smooth);
}

.item-card:hover .item-info {
  opacity: 1;
}

.item-material {
  font-size: 0.9rem;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-xs);
}

.item-name {
  font-size: 1.1rem;
  font-weight: var(--font-medium);
  letter-spacing: 2px;
}

/* 灵感页面样式 */
.inspiration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
}

.inspiration-card {
  background: var(--color-bg);
  overflow: hidden;
}

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

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

.inspiration-title {
  font-size: 1.3rem;
  font-weight: var(--font-medium);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 1px;
}

.inspiration-text {
  color: var(--color-muted);
  line-height: 1.8;
  letter-spacing: 0.5px;
}

/* 关于页面样式 */
.about-container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  text-align: center;
}

.about-title {
  font-size: 2.5rem;
  font-weight: var(--font-light);
  margin-bottom: var(--spacing-lg);
  letter-spacing: 4px;
}

.about-text {
  font-size: 1.1rem;
  line-height: 2;
  color: var(--color-muted);
  letter-spacing: 1px;
}

/* 页脚样式 */
footer {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--color-bg);
  color: var(--color-muted);
  letter-spacing: 1px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    gap: var(--spacing-sm);
    font-size: 0.9rem;
  }
  
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .masonry {
    columns: 2;
  }
  
  .hero-title {
    letter-spacing: 4px;
  }
  
  .about-title {
    font-size: 2rem;
    letter-spacing: 2px;
  }
}

@media (max-width: 480px) {
  .nav-links {
    gap: var(--spacing-xs);
  }
  
  .nav-links a {
    font-size: 0.8rem;
  }
  
  .grid-cols-2 {
    grid-template-columns: 1fr;
  }
  
  .masonry {
    columns: 1;
  }
  
  .series-grid,
  .items-container,
  .inspiration-grid {
    padding: var(--spacing-sm);
  }
}

/* 页面切换动画 */
.page-transition {
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-muted);
}