/* 
 * 响应式布局配置文件
 * 适配策略：移动端优先 (Mobile First)
 * 覆盖断点：Mobile(<768px), Tablet(768px-1024px), Desktop(>1024px)
 */

/* =========================================
   全局响应式基础
   ========================================= */
:root {
  --nav-height-mobile: 60px;
  --nav-height-desktop: 80px;
}

/* 移动端基础调整 */
@media (max-width: 767px) {
  /* 导航栏折叠优化 */
  nav.container-fluid {
    flex-direction: column;
    padding: 1rem;
  }

  nav ul {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    padding: 0;
  }

  nav ul li {
    padding: 0.25rem 0.5rem;
  }

  /* 字体大小降级 */
  h1 { font-size: 2rem !important; }
  h2 { font-size: 1.75rem !important; }
  h3 { font-size: 1.5rem !important; }
  
  /* 间距调整 */
  .section-container {
    padding: 2rem 1rem !important;
  }

  /* 轮播图/Hero区域高度自适应 */
  .hero-slider {
    height: 60vh !important;
  }
}

/* =========================================
   平板设备适配 (768px - 1024px)
   ========================================= */
@media (min-width: 768px) and (max-width: 1024px) {
  .grid-gallery {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem;
  }

  .style-card-container {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-container {
    padding: 3rem 1.5rem;
  }
}

/* =========================================
   桌面设备适配 (> 1024px)
   ========================================= */
@media (min-width: 1025px) {
  /* 导航栏固定优化 */
  nav.container-fluid {
    padding: 0 4rem;
    height: var(--nav-height-desktop);
  }

  /* 网格布局优化 */
  .grid-gallery {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
  
  .grid-gallery.dense {
    grid-template-columns: repeat(4, 1fr);
  }

  /* 细节页左右布局 */
  .details-split-view {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
  }
}

/* =========================================
   通用组件响应式微调
   ========================================= */

/* 图片响应式容器 */
.aspect-ratio-box {
  position: relative;
  width: 100%;
  overflow: hidden;
}

/* 卡片在移动端的堆叠 */
@media (max-width: 767px) {
  .card-group {
    flex-direction: column;
  }
  
  .card-group > * {
    width: 100%;
    margin-bottom: 1.5rem;
  }

  /* 隐藏非关键装饰元素 */
  .hide-on-mobile {
    display: none !important;
  }
  
  /* 按钮全宽以易于触控 */
  .btn-mobile-full {
    width: 100%;
    display: block;
    text-align: center;
  }
}

/* 触摸屏优化 */
@media (hover: none) {
  .hover-overlay {
    opacity: 1 !important;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  }
  
  .hover-content {
    transform: translateY(0) !important;
  }
}