/* 全局样式 - 时尚女装展示网站 */

/* 引入Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600&family=Noto+Sans+SC:wght@300;400;500&display=swap');

/* CSS变量定义 */
:root {
  --color-bg: #F8F9FA;
  --color-card: #FFFFFF;
  --color-accent: #D4A89A;
  --color-text: #2C2C2C;
  --color-text-secondary: #5A5A5A;
  --font-serif: 'Playfair Display', 'Noto Serif SC', serif;
  --font-sans: 'Noto Sans SC', sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  overflow-x: hidden;
}

/* 导航栏样式 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(248, 249, 250, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1.5rem 2rem;
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-menu {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-text);
  text-decoration: none;
  position: relative;
  transition: var(--transition-smooth);
  letter-spacing: 0.5px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: var(--transition-smooth);
  transform: translateX(-50%);
}

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

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

/* 页面容器 */
.page-container {
  min-height: 100vh;
  padding-top: 80px;
}

/* 首页轮播图 */
.hero-slider {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

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

.slide.active {
  opacity: 1;
}

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

.slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0,0,0,0.1), rgba(0,0,0,0.3));
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  color: white;
  text-align: center;
  letter-spacing: 2px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
  animation: fadeInUp 1.5s ease-out;
}

/* 滚动指示箭头 */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
  cursor: pointer;
}

.scroll-indicator svg {
  width: 30px;
  height: 30px;
  color: white;
  filter: drop-shadow(0 2px 10px rgba(0,0,0,0.3));
}

/* 系列精选页 */
.collections-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

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

.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.collection-item {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 3/4;
  cursor: pointer;
  background-color: var(--color-card);
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  transition: var(--transition-smooth);
}

.collection-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.collection-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.collection-item:hover img {
  transform: scale(1.08);
}

.collection-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0,0,0,0), rgba(0,0,0,0.6));
  display: flex;
  align-items: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition-smooth);
}

.collection-item:hover .collection-overlay {
  opacity: 1;
}

.collection-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: white;
  letter-spacing: 1px;
}

/* 设计理念页 */
.philosophy-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.philosophy-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
  align-items: center;
}

.philosophy-text {
  font-size: 1.1rem;
  line-height: 2;
  color: var(--color-text-secondary);
}

.philosophy-text h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  letter-spacing: 0.5px;
}

.philosophy-text p {
  margin-bottom: 1.5rem;
}

.philosophy-images {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.philosophy-image {
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

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

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

/* 页脚 */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  border-top: 1px solid rgba(0,0,0,0.05);
  margin-top: 4rem;
}

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

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* 响应式设计 - 平板端 */
@media (max-width: 1199px) {
  .hero-title {
    font-size: 2.8rem;
  }
  
  .collection-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .philosophy-section {
    gap: 3rem;
  }
}

/* 响应式设计 - 移动端 */
@media (max-width: 767px) {
  .nav-menu {
    gap: 1.5rem;
  }
  
  .nav-link {
    font-size: 1rem;
  }
  
  .hero-title {
    font-size: 2rem;
    padding: 0 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .collection-grid {
    grid-template-columns: 1fr;
  }
  
  .philosophy-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .philosophy-images {
    grid-template-columns: 1fr;
  }
  
  .collections-container,
  .philosophy-container {
    padding: 2rem 1rem;
  }
}

/* 图片懒加载占位 */
img[data-src] {
  filter: blur(10px);
  transition: filter 0.3s;
}

img[data-src].loaded {
  filter: blur(0);
}