/* 全局字体引入 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* CSS变量定义 - 主色调系统 */
:root {
  --color-primary-gray: #8B8D8F;
  --color-beige: #F5F5DC;
  --color-light-pink: #FFE4E1;
  --color-deep-blue: #4A5568;
  --color-rose-gold: #B76E79;
  --color-champagne: #F7E7CE;
  --color-light-camel: #C8AD7F;
  --color-white: #FFFFFF;
  --color-dark: #2D3748;
  
  --font-primary: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-elegant: 0 4px 20px rgba(0, 0, 0, 0.08);
}

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

body {
  font-family: var(--font-primary);
  color: var(--color-dark);
  line-height: 1.8;
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* 平滑滚动 */
html {
  scroll-behavior: smooth;
}

/* 图片优化 */
img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 链接样式 */
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

a:hover {
  opacity: 0.8;
}

/* 顶部导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-elegant);
}

.navbar-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-rose-gold), var(--color-champagne));
  border-radius: 50%;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--color-dark);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-rose-gold);
  transition: width 0.3s ease;
}

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

/* 轮播图容器 */
.carousel-container {
  margin-top: 76px;
  height: calc(100vh - 76px);
  position: relative;
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

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

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

.carousel-caption {
  position: absolute;
  bottom: 15%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: var(--color-white);
  background: rgba(0, 0, 0, 0.4);
  padding: 2rem 4rem;
  border-radius: 8px;
  backdrop-filter: blur(5px);
}

.carousel-caption h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: 2px;
}

/* 区块容器 */
.section {
  padding: 5rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--color-dark);
  letter-spacing: 1px;
}

.section-subtitle {
  font-size: 1.125rem;
  text-align: center;
  color: var(--color-primary-gray);
  margin-bottom: 4rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.fashion-card {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: var(--shadow-elegant);
  background: var(--color-white);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.fashion-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.fashion-card-image {
  width: 100%;
  height: 400px;
  overflow: hidden;
}

.fashion-card-image img {
  width: 100%;
  height: 100%;
  transition: transform 0.5s ease;
}

.fashion-card:hover .fashion-card-image img {
  transform: scale(1.08);
}

.fashion-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
}

.fashion-card:hover .fashion-card-overlay {
  opacity: 1;
}

.overlay-text {
  color: var(--color-white);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 1px;
}

.fashion-card-content {
  padding: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.card-description {
  font-size: 0.95rem;
  color: var(--color-primary-gray);
  line-height: 1.6;
}

/* 时尚洞察区域 */
.insight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
}

.insight-item {
  background: var(--color-beige);
  padding: 2.5rem;
  border-radius: 12px;
  border-left: 4px solid var(--color-rose-gold);
}

.insight-item h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-dark);
}

.insight-item p {
  color: var(--color-primary-gray);
  line-height: 1.8;
}

/* 系列展示区域 */
.series-category {
  margin-bottom: 5rem;
}

.category-header {
  text-align: center;
  margin-bottom: 2rem;
}

.category-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.category-description {
  font-size: 1.125rem;
  color: var(--color-primary-gray);
}

/* 风格指南 */
.guide-section {
  margin-bottom: 4rem;
}

.guide-title {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: var(--color-dark);
  padding-left: 1rem;
  border-left: 4px solid var(--color-rose-gold);
}

.color-palette {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.color-item {
  flex: 1;
  min-width: 200px;
  padding: 1.5rem;
  border-radius: 8px;
  text-align: center;
  color: var(--color-white);
  font-weight: 500;
}

.tips-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.tip-item {
  background: var(--color-light-pink);
  padding: 1.5rem;
  border-radius: 8px;
  transition: var(--transition-smooth);
}

.tip-item:hover {
  background: var(--color-champagne);
  transform: translateX(5px);
}

.tip-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

/* 页脚 */
.footer {
  background: var(--color-deep-blue);
  color: var(--color-white);
  padding: 3rem 2rem;
  text-align: center;
}

.footer-divider {
  width: 100px;
  height: 2px;
  background: var(--color-rose-gold);
  margin: 0 auto 1.5rem;
}

.footer-text {
  font-size: 1rem;
  letter-spacing: 1px;
  opacity: 0.9;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar-content {
    padding: 1rem;
  }
  
  .nav-links {
    gap: 1.5rem;
    font-size: 0.9rem;
  }
  
  .logo-text {
    font-size: 1.25rem;
  }
  
  .carousel-caption {
    padding: 1.5rem 2rem;
  }
  
  .carousel-caption h2 {
    font-size: 1.75rem;
  }
  
  .section {
    padding: 3rem 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .insight-grid {
    grid-template-columns: 1fr;
  }
  
  .category-title {
    font-size: 1.5rem;
  }
  
  .guide-title {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .nav-links {
    gap: 1rem;
    font-size: 0.85rem;
  }
  
  .fashion-card-image {
    height: 300px;
  }
  
  .carousel-caption {
    padding: 1rem;
  }
  
  .carousel-caption h2 {
    font-size: 1.5rem;
  }
}

/* 懒加载占位 */
.lazy-placeholder {
  background: linear-gradient(90deg, var(--color-beige) 25%, var(--color-champagne) 50%, var(--color-beige) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}