/* 全局样式 */
:root {
  --primary-color: #333333;
  --background-color: #ffffff;
  --secondary-background: #fafafa;
  --text-color: #333333;
  --muted-text: #666666;
  --border-color: #eeeeee;
  --accent-color: #a8795a;
  --hover-color: #8b6349;
  --spacing-unit: 1rem;
  --border-radius: 0.5rem;
  --transition-speed: 0.3s;
}

body {
  font-family: "Helvetica Neue", Arial, "思源黑体", sans-serif;
  color: var(--text-color);
  background-color: var(--background-color);
  margin: 0;
  padding: 0;
  line-height: 1.6;
  overflow-x: hidden;
}

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

nav ul {
  display: flex;
  justify-content: center;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  height: 60px;
}

nav li {
  margin: 0 calc(var(--spacing-unit) * 1.5);
}

nav a {
  text-decoration: none;
  color: var(--primary-color);
  font-weight: 300;
  font-size: 1rem;
  letter-spacing: 1px;
  transition: color var(--transition-speed) ease;
  position: relative;
}

nav a:hover {
  color: var(--accent-color);
}

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

nav a:hover::after {
  width: 100%;
}

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

/* 主内容区域 */
main {
  margin-top: 60px;
  min-height: calc(100vh - 60px - 60px);
}

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

/* Hero 区域 */
.hero {
  height: 70vh;
  min-height: 500px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 2s ease-in-out;
}

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

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

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 300;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  font-weight: 300;
  max-width: 600px;
  margin: 0 auto;
}

/* 内容区域 */
section {
  padding: calc(var(--spacing-unit) * 4) 0;
}

.section-title {
  text-align: center;
  margin-bottom: calc(var(--spacing-unit) * 3);
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-unit);
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 1px;
  background-color: var(--accent-color);
}

/* 四季风尚 */
.seasons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-unit);
  margin-bottom: calc(var(--spacing-unit) * 4);
}

.season-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  height: 250px;
}

.season-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed) ease;
}

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

.season-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-unit);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  color: white;
}

.season-overlay h3 {
  font-weight: 300;
  margin: 0;
}

/* 精选推荐 */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: calc(var(--spacing-unit) * 1.5);
}

.featured-item {
  background-color: var(--secondary-background);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.featured-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.featured-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.featured-content {
  padding: var(--spacing-unit);
}

.featured-content h3 {
  font-weight: 400;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.featured-content p {
  font-size: 0.9rem;
  color: var(--muted-text);
  margin: 0;
}

/* 风格型录 - 瀑布流 */
.catalog-grid {
  column-count: 3;
  column-gap: calc(var(--spacing-unit) * 1.5);
}

.catalog-item {
  break-inside: avoid;
  margin-bottom: calc(var(--spacing-unit) * 1.5);
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
}

.catalog-item img {
  width: 100%;
  display: block;
  transition: transform var(--transition-speed) ease;
}

.catalog-item:hover img {
  transform: scale(1.03);
}

.catalog-info {
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-unit);
  color: white;
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
}

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

.catalog-info h3 {
  font-weight: 300;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.catalog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  padding: 0.2rem 0.5rem;
  border-radius: 1rem;
  font-size: 0.8rem;
}

/* 单品图鉴 - 网格 */
.item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: calc(var(--spacing-unit) * 2);
}

.item-card {
  background-color: var(--secondary-background);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.item-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.item-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  height: 250px;
}

.item-images img:first-child {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
}

.item-images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.item-info {
  padding: var(--spacing-unit);
}

.item-info h3 {
  font-weight: 400;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.item-info p {
  font-size: 0.9rem;
  color: var(--muted-text);
  margin: 0;
}

/* 灵感志 - 博客列表 */
.inspiration-list {
  display: grid;
  gap: calc(var(--spacing-unit) * 3);
}

.inspiration-card {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: calc(var(--spacing-unit) * 2);
  background-color: var(--secondary-background);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.inspiration-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.inspiration-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.inspiration-content {
  padding: calc(var(--spacing-unit) * 2);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.inspiration-content h3 {
  font-weight: 400;
  margin-top: 0;
  margin-bottom: var(--spacing-unit);
}

.inspiration-content p {
  color: var(--muted-text);
  margin: 0;
}

.read-more {
  margin-top: var(--spacing-unit);
  color: var(--accent-color);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-speed) ease;
}

.read-more:hover {
  color: var(--hover-color);
}

/* 页脚 */
footer {
  text-align: center;
  padding: calc(var(--spacing-unit) * 1.5) 0;
  background-color: var(--secondary-background);
  border-top: 1px solid var(--border-color);
}

footer p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted-text);
}

/* 响应式设计 */
@media (max-width: 992px) {
  .catalog-grid {
    column-count: 2;
  }
  
  .inspiration-card {
    grid-template-columns: 1fr;
  }
  
  .inspiration-card img {
    height: 200px;
  }
}

@media (max-width: 768px) {
  nav li {
    margin: 0 var(--spacing-unit);
  }
  
  nav a {
    font-size: 0.9rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .seasons-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .item-images {
    height: 200px;
  }
  
  .catalog-grid {
    column-count: 1;
  }
}

@media (max-width: 576px) {
  .seasons-grid {
    grid-template-columns: 1fr;
  }
  
  .featured-grid {
    grid-template-columns: 1fr;
  }
  
  .item-grid {
    grid-template-columns: 1fr;
  }
  
  .item-images {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    height: auto;
  }
  
  .item-images img:first-child {
    grid-column: 1;
    grid-row: 1;
  }
}

/* 动画效果 */
.fade-in {
  animation: fadeIn 0.8s ease-in-out;
}

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

/* 图片加载动画 */
img {
  opacity: 0;
  transition: opacity 0.5s ease;
}

img.loaded {
  opacity: 1;
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
}

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

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

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