/* 全局样式 - 服装展示网站 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  --primary-color: #1a1a1a;
  --secondary-color: #666;
  --light-gray: #f5f5f5;
  --border-color: #e0e0e0;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--primary-color);
  background-color: #fff;
  line-height: 1.6;
  overflow-x: hidden;
}

/* 懒加载图片效果 */
.lazy-image {
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}

.lazy-image.loaded {
  opacity: 1;
}

/* 导航栏样式 */
.nav-link {
  position: relative;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

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

/* 图片悬停效果 */
.image-hover {
  overflow: hidden;
  cursor: pointer;
}

.image-hover img {
  transition: transform 0.5s ease, filter 0.5s ease;
}

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

/* 页面切换动画 */
.fade-in {
  animation: fadeIn 0.6s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 系列卡片效果 */
.collection-card {
  transition: var(--transition);
}

.collection-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 轮播图指示器 */
.carousel-indicator {
  transition: var(--transition);
}

.carousel-indicator.active {
  background-color: var(--primary-color);
  transform: scale(1.2);
}

/* 按钮悬停效果 */
.btn-hover {
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.btn-hover::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-hover:hover::before {
  width: 300px;
  height: 300px;
}

/* 加载动画 */
.loading-spinner {
  border: 2px solid var(--light-gray);
  border-top: 2px solid var(--primary-color);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 响应式字体 */
@media (max-width: 640px) {
  html {
    font-size: 14px;
  }
}

@media (min-width: 641px) and (max-width: 1024px) {
  html {
    font-size: 15px;
  }
}

@media (min-width: 1025px) {
  html {
    font-size: 16px;
  }
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
  background: var(--secondary-color);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

/* 文字选择颜色 */
::selection {
  background-color: var(--primary-color);
  color: #fff;
}

/* 页脚样式 */
footer {
  margin-top: auto;
}