/* 
 * 极简主义时尚女装展示网站全局样式
 * Minimalist Womenswear Showcase Global Styles
 * By HAISNAP
 */

:root {
  /* 调色板 Palette - 极简主义: 纯白、浅灰、米色 */
  --color-bg: #ffffff;
  --color-bg-alt: #f9f9f9;
  --color-bg-accent: #f2f0eb; /* 米色/燕麦色 */
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-border: #e0e0e0;
  
  /* 字体 Typography */
  --font-primary: "Helvetica Neue", "Helvetica", "Arial", "PingFang SC", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  
  /* 间距 Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  /* 布局 Layout */
  --container-width: 1200px;
  --header-height: 80px;
  
  /* 动画 Animation */
  --transition-fast: 0.3s ease;
  --transition-slow: 0.8s ease-in-out;
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

ul {
  list-style: none;
}

/* 辅助类 Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.text-center { text-align: center; }
.fade-in { animation: fadeIn 1s ease-out forwards; opacity: 0; }

@keyframes fadeIn {
  to { opacity: 1; }
}

/* 导航栏 Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(5px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.site-header.scrolled {
  border-bottom-color: var(--color-bg-alt);
}

.main-nav ul {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-text);
  position: relative;
  padding: 5px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-text);
  transition: width var(--transition-fast);
}

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

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

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide.active {
  opacity: 1;
}

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

.slide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.9);
}

.slide-content {
  color: #fff;
  text-align: center;
  z-index: 1;
  text-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.slide-text {
  font-size: 1.5rem;
  letter-spacing: 3px;
  font-weight: 300;
  opacity: 0;
  transform: translateY(20px);
  transition: all 1s ease-out 0.5s;
}

.slide.active .slide-text {
  opacity: 1;
  transform: translateY(0);
}

/* 首页 - 当代设计 Contemporary Design */
.section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  text-align: center;
  font-size: 1.2rem;
  letter-spacing: 4px;
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
  text-transform: uppercase;
  color: var(--color-text-light);
}

.design-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.design-item {
  position: relative;
  overflow: hidden;
}

.design-item img {
  width: 100%;
  height: 120%; /* Slightly larger for parallax/zoom effect if needed */
  transition: transform var(--transition-slow);
}

.design-item:hover img {
  transform: scale(1.05);
}

.design-desc {
  margin-top: var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--color-text-light);
  letter-spacing: 1px;
  text-align: center;
}

/* 首页 - 季节专题 Seasonal */
.seasonal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.seasonal-item {
  position: relative;
}

.seasonal-item img {
  aspect-ratio: 3/4;
}

.seasonal-label {
  margin-top: var(--spacing-sm);
  text-align: center;
  font-size: 0.9rem;
  letter-spacing: 2px;
  color: var(--color-text-light);
}

.explore-link {
  display: block;
  text-align: center;
  margin-top: var(--spacing-xl);
  font-size: 0.9rem;
  color: var(--color-text);
  letter-spacing: 2px;
}

/* 系列页面 - 筛选与瀑布流 Collections */
.filters {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  padding-top: var(--spacing-xl); /* Space for fixed header */
}

.filter-btn {
  background: none;
  border: none;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--color-text-light);
  letter-spacing: 1px;
  transition: color var(--transition-fast);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

.filter-btn:hover, .filter-btn.active {
  color: var(--color-text);
  border-bottom-color: var(--color-text);
}

.collection-grid {
  column-count: 3;
  column-gap: var(--spacing-md);
  padding-bottom: var(--spacing-xl);
}

.collection-item {
  break-inside: avoid;
  margin-bottom: var(--spacing-md);
  cursor: zoom-in;
  position: relative;
}

.collection-item img {
  width: 100%;
  display: block;
  transition: opacity var(--transition-fast);
}

.collection-item:hover img {
  opacity: 0.9;
}

.item-keyword {
  position: absolute;
  bottom: var(--spacing-sm);
  left: var(--spacing-sm);
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 1px;
  opacity: 0;
  transition: opacity var(--transition-fast);
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

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

/* 图片灯箱 Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.98);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox-content {
  display: flex;
  max-width: 90%;
  max-height: 90%;
  gap: var(--spacing-lg);
}

.lightbox-img {
  max-height: 80vh;
  max-width: 60vw;
  object-fit: contain;
}

.lightbox-details {
  width: 300px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.craft-note {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.8;
  border-left: 1px solid var(--color-border);
  padding-left: var(--spacing-sm);
}

.lightbox-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: 2rem;
  cursor: pointer;
  color: var(--color-text);
  line-height: 1;
}

/* 美学页面 - 图文交错 Aesthetics */
.aesthetics-wrapper {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

.aesthetic-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  gap: var(--spacing-lg);
}

.aesthetic-block.reverse {
  direction: rtl; /* 简单的左右互换，但需注意文本方向 */
}

.aesthetic-block.reverse .aesthetic-text {
  direction: ltr; /* 恢复文本方向 */
  text-align: left; /* 根据需求调整对齐 */
}

.aesthetic-img-wrap {
  overflow: hidden;
  height: 600px;
}

.aesthetic-img-wrap img {
  width: 100%;
  height: 100%;
  transition: transform 3s ease; /* 缓慢缩放 */
}

.aesthetic-img-wrap:hover img {
  transform: scale(1.1);
}

.aesthetic-text {
  padding: var(--spacing-lg);
}

.philosophy-text {
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--color-text);
  letter-spacing: 1.5px;
  line-height: 2;
}

.aesthetic-footer {
  text-align: center;
  margin-top: var(--spacing-xl);
  font-size: 1.2rem;
  letter-spacing: 3px;
  color: var(--color-text-muted);
  font-style: italic;
}

/* 页脚 Footer */
.site-footer {
  padding: var(--spacing-lg) 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.copyright {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

/* 动态槽位 Dynamic Slot */
.dynamic-slot {
  display: none; /* 预留槽位，默认隐藏 */
}

/* 响应式设计 Responsive */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
    --spacing-xl: 4rem;
  }

  .main-nav ul {
    display: none; /* 移动端需配合JS实现汉堡菜单 */
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: #fff;
    flex-direction: column;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    gap: var(--spacing-sm);
  }
  
  .main-nav.active ul {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block; /* 需在HTML中添加 */
    cursor: pointer;
    font-size: 1.5rem;
  }

  .design-grid, .seasonal-grid {
    grid-template-columns: 1fr;
  }

  .collection-grid {
    column-count: 1;
  }

  .aesthetic-block, .aesthetic-block.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    height: auto;
  }
  
  .aesthetic-img-wrap {
    height: 400px;
  }
  
  .lightbox-content {
    flex-direction: column;
    align-items: center;
  }
  
  .lightbox-img {
    max-width: 100%;
    max-height: 50vh;
  }
  
  .lightbox-details {
    width: 100%;
    text-align: center;
  }
  
  .craft-note {
    border-left: none;
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-sm);
    padding-left: 0;
  }
}