/* 
 * 全局样式文件 - 极简现代时尚女装展示
 * 遵循设计原则：纯粹视觉体验、大量留白、优雅排版
 */

:root {
  /* 色彩方案 */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F8F8F8;
  --color-text-primary: #333333;
  --color-text-secondary: #666666;
  --color-accent: #D4AF37; /* 浅金 */
  
  /* 字体设置 */
  --font-primary: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  
  /* 间距与布局 */
  --spacing-section: 120px;
  --spacing-element: 2rem;
  --container-width: 1440px;
  
  /* 动效 */
  --transition-smooth: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: all 0.3s ease-out;
}

/* 基础重置与排版 */
html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  line-height: 1.8;
  font-weight: var(--font-weight-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-light);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); }
h3 { font-size: 1.5rem; }
p { margin-bottom: 1.5rem; color: var(--color-text-secondary); }

/* 链接与按钮 */
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

.link-hover {
  position: relative;
}

.link-hover::after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -2px;
  left: 0;
  background-color: var(--color-text-primary);
  transition: var(--transition-fast);
}

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

/* 布局容器 */
.container-custom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 5%;
  width: 100%;
  box-sizing: border-box;
}

.section-padding {
  padding-top: var(--spacing-section);
  padding-bottom: var(--spacing-section);
}

/* 极简导航 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(5px);
  transition: transform 0.3s ease;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  font-weight: 400;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 3rem;
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* 移动端将在JS中处理 */
  }
}

/* 图片展示与动效 */
.img-container {
  overflow: hidden;
  position: relative;
  background-color: var(--color-bg-secondary);
}

.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
  display: block;
}

.img-container:hover .img-cover {
  transform: scale(1.05);
}

/* 瀑布流布局辅助 */
.masonry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  grid-auto-rows: 10px;
}

/* 滚动显现动画 */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 1s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* 首页轮播 */
.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;
  z-index: 1;
}

.slide.active {
  opacity: 1;
  z-index: 2;
}

.hero-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  text-align: center;
  color: white;
  mix-blend-mode: difference;
  pointer-events: none;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  animation: bounce 2s infinite;
}

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

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

.loader-line {
  width: 0;
  height: 1px;
  background-color: var(--color-text-primary);
  animation: loadLine 1.5s ease-in-out forwards;
}

@keyframes loadLine {
  0% { width: 0; }
  100% { width: 200px; }
}

/* 极简页脚 */
footer {
  border-top: 1px solid #E5E5E5;
  padding: 2rem 0;
  text-align: center;
  font-size: 0.875rem;
  color: #999;
  margin-top: auto;
}

/* 移动端菜单 */
.mobile-menu-btn {
  display: none;
  cursor: pointer;
  z-index: 1001;
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: white;
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-menu-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
  .section-padding {
    padding-top: 80px;
    padding-bottom: 80px;
  }
}

/* 细节类 */
.text-gold { color: var(--color-accent); }
.bg-light-gray { background-color: var(--color-bg-secondary); }
.text-justify { text-align: justify; }
.tracking-wide { letter-spacing: 0.1em; }