/* 全局样式文件 - 现代时尚女装展示网站 */

/* CSS变量 - 设计令牌 */
:root {
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #FAFAFA;
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #888888;
  --color-border: #E8E8E8;
  --color-hover: #D4D4D4;
  
  --font-title-en: 'Playfair Display', serif;
  --font-title-cn: 'Noto Serif SC', serif;
  --font-body: 'Noto Sans SC', sans-serif;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  --radius-sm: 2px;
  --shadow-light: 0 2px 8px rgba(0,0,0,0.08);
  
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s ease;
}

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 字体加载 */
@import url('https://fonts.loli.net/css2?family=Playfair+Display:wght@400;600&family=Noto+Serif+SC:wght@300;400&family=Noto+Sans+SC:wght@300;400&display=swap');

/* 通用样式 */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

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

.nav-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  font-size: 14px;
  letter-spacing: 1px;
  position: relative;
  padding: var(--spacing-xs) 0;
}

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

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

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

/* 首页轮播 */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  margin-top: 80px;
}

.carousel-container {
  position: relative;
  width: 100%;
  height: 100%;
}

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

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

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

.carousel-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;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  text-align: center;
  padding: var(--spacing-md);
}

.hero-title {
  font-family: var(--font-title-cn);
  font-size: 48px;
  font-weight: 300;
  letter-spacing: 4px;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 18px;
  font-weight: 300;
  letter-spacing: 2px;
  opacity: 0.9;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 12px;
  cursor: pointer;
}

.scroll-indicator::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: rgba(255,255,255,0.7);
  border-radius: 2px;
  animation: scroll-down 2s infinite;
}

@keyframes scroll-down {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50% { transform: translateX(-50%) translateY(12px); opacity: 0.3; }
}

/* 灵感图集 - 瀑布流 */
.gallery-section {
  max-width: 1400px;
  margin: 120px auto var(--spacing-xl);
  padding: 0 var(--spacing-lg);
}

.gallery-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.gallery-title {
  font-family: var(--font-title-cn);
  font-size: 36px;
  font-weight: 300;
  letter-spacing: 3px;
  margin-bottom: var(--spacing-sm);
}

.gallery-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  letter-spacing: 1px;
}

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

.filter-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--color-text-primary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: var(--transition-fast);
}

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

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.gallery-item img {
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
}

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

.gallery-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  opacity: 0;
  transition: var(--transition-smooth);
}

.gallery-item:hover::after {
  opacity: 1;
}

/* 设计理念页面 */
.philosophy-section {
  max-width: 1400px;
  margin: 120px auto var(--spacing-xl);
  padding: 0 var(--spacing-lg);
}

.philosophy-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.philosophy-content {
  padding-right: var(--spacing-lg);
}

.philosophy-title {
  font-family: var(--font-title-cn);
  font-size: 36px;
  font-weight: 300;
  letter-spacing: 3px;
  margin-bottom: var(--spacing-lg);
}

.philosophy-text {
  font-size: 16px;
  line-height: 2;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  text-align: justify;
}

.philosophy-image {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.philosophy-image img {
  width: 100%;
  height: auto;
  opacity: 0;
  animation: fade-in 1s ease forwards;
}

@keyframes fade-in {
  to { opacity: 1; }
}

/* 页脚 */
.footer {
  text-align: center;
  padding: var(--spacing-lg) 0;
  color: var(--color-text-secondary);
  font-size: 14px;
  letter-spacing: 1px;
  border-top: 1px solid var(--color-border);
  margin-top: var(--spacing-xl);
}

/* 加载动画 */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.loading.hide {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-text-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 响应式设计 - 平板 */
@media (max-width: 1024px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }
  
  .hero-title {
    font-size: 36px;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  
  .philosophy-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .philosophy-content {
    padding-right: 0;
  }
}

/* 响应式设计 - 移动端 */
@media (max-width: 768px) {
  :root {
    font-size: 14px;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
  }
  
  .nav-wrapper {
    padding: var(--spacing-sm) var(--spacing-md);
    gap: var(--spacing-md);
  }
  
  .nav-link {
    font-size: 12px;
  }
  
  .hero-section {
    margin-top: 60px;
  }
  
  .hero-title {
    font-size: 28px;
    letter-spacing: 2px;
  }
  
  .hero-subtitle {
    font-size: 14px;
  }
  
  .gallery-section,
  .philosophy-section {
    margin: 100px auto var(--spacing-lg);
    padding: 0 var(--spacing-md);
  }
  
  .gallery-title,
  .philosophy-title {
    font-size: 28px;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .filter-container {
    gap: var(--spacing-sm);
  }
  
  .filter-btn {
    font-size: 12px;
    padding: 6px var(--spacing-sm);
  }
  
  .philosophy-text {
    font-size: 14px;
  }
}

/* 无障碍性 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 打印样式 */
@media print {
  .nav-container,
  .scroll-indicator,
  .filter-container,
  .footer {
    display: none;
  }
  
  .hero-section {
    height: auto;
    margin-top: 0;
  }
}