/* ========================================
   情深叉 影视IP周边电商平台 - 主样式表
   潮玩盲盒 + 精致橱窗 视觉风格
   ======================================== */

/* CSS变量定义 */
:root {
  --color-primary: #FF9F43;
  --color-primary-dark: #E8890A;
  --color-secondary: #10AC84;
  --color-secondary-dark: #0E9B76;
  --color-dark: #222F3E;
  --color-bg: #F8F9FA;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-white: #FFFFFF;
  --color-border: #E8E8E8;
  --color-star: #FFD700;
  --font-primary: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-heading: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 50%;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
}

/* 重置与基础 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.3;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   顶部导航栏
   ======================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  border-bottom: 2px solid var(--color-primary);
}

.header-top {
  background: var(--color-dark);
  color: var(--color-white);
  font-size: 0.8rem;
  padding: 6px 0;
  text-align: center;
}

.header-top a {
  color: var(--color-primary);
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: var(--container-max);
  margin: 0 auto;
}

.site-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.2rem;
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.main-nav a {
  color: var(--color-dark);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

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

.main-nav a:hover {
  color: var(--color-primary);
}

/* 搜索与购物车 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-toggle,
.cart-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--color-dark);
  position: relative;
  transition: var(--transition);
}

.search-toggle:hover,
.cart-toggle:hover {
  color: var(--color-primary);
}

.cart-badge {
  position: absolute;
  top: -6px;
  right: -8px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.65rem;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-dark);
}

/* ========================================
   Hero轮播区
   ======================================== */
.hero-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.hero-slides {
  display: flex;
  transition: transform 0.6s ease;
}

.hero-slide {
  min-width: 100%;
  position: relative;
  aspect-ratio: 21/9;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(34, 47, 62, 0.85) 0%, rgba(34, 47, 62, 0.3) 60%, transparent 100%);
  display: flex;
  align-items: center;
  padding: 0 60px;
}

.hero-content {
  max-width: 500px;
  color: var(--color-white);
}

.hero-content .hero-tag {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.hero-content h2 {
  font-size: 2.2rem;
  color: var(--color-white);
  margin-bottom: 12px;
}

.hero-content p {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 20px;
}

.hero-btn {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.hero-btn:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 159, 67, 0.4);
}

.hero-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition);
}

.hero-dot.active {
  background: var(--color-primary);
  width: 30px;
  border-radius: 6px;
}

/* ========================================
   IP分类导航区
   ======================================== */
.ip-categories {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.section-title p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.section-title .title-line {
  width: 60px;
  height: 3px;
  background: var(--color-primary);
  margin: 12px auto 0;
  border-radius: 2px;
}

.ip-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  text-align: center;
}

.ip-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px 10px;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
}

.ip-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.ip-card .ip-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 3px solid var(--color-border);
  transition: var(--transition);
}

.ip-card:hover .ip-icon {
  border-color: var(--color-primary);
}

.ip-card .ip-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ip-card .ip-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-dark);
}

/* ========================================
   商品网格
   ======================================== */
.products-section {
  padding: 60px 0;
  background: var(--color-white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.product-card .product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 2;
}

.product-card .product-badge.limited {
  background: #E74C3C;
}

.product-card .product-badge.new {
  background: var(--color-secondary);
}

.product-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/5;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.product-image .product-image-hover {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover .product-image img:first-child {
  opacity: 0;
}

.product-card:hover .product-image .product-image-hover {
  opacity: 1;
}

.product-info {
  padding: 16px;
}

.product-info .product-ip {
  font-size: 0.75rem;
  color: var(--color-secondary);
  font-weight: 600;
  margin-bottom: 4px;
}

.product-info .product-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-info .product-price {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.product-info .product-price .current {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.product-info .product-price .original {
  font-size: 0.85rem;
  color: var(--color-text-light);
  text-decoration: line-through;
}

.add-to-cart-btn {
  width: 100%;
  padding: 10px;
  background: var(--color-dark);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}

.add-to-cart-btn:hover {
  background: var(--color-primary);
}

/* ========================================
   众筹/预售进度条
   ======================================== */
.crowdfunding-section {
  padding: 60px 0;
}

.crowdfund-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.crowdfund-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  transition: var(--transition);
}

.crowdfund-card:hover {
  box-shadow: var(--shadow-md);
}

.crowdfund-card .crowdfund-img {
  width: 200px;
  min-height: 200px;
  overflow: hidden;
}

.crowdfund-card .crowdfund-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.crowdfund-card .crowdfund-info {
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.crowdfund-info .crowdfund-tag {
  display: inline-block;
  background: rgba(255, 159, 67, 0.1);
  color: var(--color-primary);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 8px;
  width: fit-content;
}

.crowdfund-info h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.crowdfund-info .crowdfund-desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-bar .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: 4px;
  transition: width 1s ease;
}

.crowdfund-stats {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.crowdfund-stats .stat-highlight {
  color: var(--color-primary);
  font-weight: 600;
}

/* ========================================
   买家秀瀑布流
   ======================================== */
.buyer-show-section {
  padding: 60px 0;
  background: var(--color-white);
}

.buyer-masonry {
  columns: 4;
  column-gap: 16px;
}

.buyer-item {
  break-inside: avoid;
  margin-bottom: 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.buyer-item img {
  width: 100%;
  transition: var(--transition);
}

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

.buyer-item .buyer-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  padding: 20px 12px 12px;
  color: var(--color-white);
  opacity: 0;
  transition: var(--transition);
}

.buyer-item:hover .buyer-overlay {
  opacity: 1;
}

.buyer-overlay .buyer-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.buyer-overlay .buyer-desc {
  font-size: 0.75rem;
  opacity: 0.8;
}

/* ========================================
   侧边栏迷你购物车
   ======================================== */
.mini-cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.mini-cart-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mini-cart {
  position: fixed;
  top: 0;
  right: -400px;
  width: 380px;
  height: 100vh;
  background: var(--color-white);
  z-index: 2001;
  box-shadow: var(--shadow-lg);
  transition: right 0.4s ease;
  display: flex;
  flex-direction: column;
}

.mini-cart.active {
  right: 0;
}

.mini-cart-header {
  padding: 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mini-cart-header h3 {
  font-size: 1.1rem;
}

.mini-cart-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-light);
}

.mini-cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.mini-cart-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.mini-cart-item img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.mini-cart-item-info {
  flex: 1;
}

.mini-cart-item-info .item-name {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.mini-cart-item-info .item-price {
  color: var(--color-primary);
  font-weight: 700;
}

.mini-cart-footer {
  padding: 20px;
  border-top: 1px solid var(--color-border);
}

.mini-cart-total {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
  font-weight: 700;
}

.mini-cart-total .total-price {
  color: var(--color-primary);
  font-size: 1.2rem;
}

.checkout-btn {
  width: 100%;
  padding: 14px;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.checkout-btn:hover {
  background: var(--color-primary-dark);
}

/* ========================================
   IP筛选器
   ======================================== */
.ip-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.filter-btn {
  padding: 8px 18px;
  border: 2px solid var(--color-border);
  border-radius: 30px;
  background: var(--color-white);
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

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

/* ========================================
   页脚
   ======================================== */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .footer-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.8;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
}

.footer-bottom a {
  color: var(--color-primary);
}

/* ========================================
   面包屑导航
   ======================================== */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
}

.breadcrumb a {
  color: var(--color-text-light);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb span {
  color: var(--color-text-light);
  margin: 0 8px;
}

/* ========================================
   内页通用样式
   ======================================== */
.page-hero {
  position: relative;
  height: 300px;
  overflow: hidden;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.page-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero .page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 30%, rgba(34, 47, 62, 0.8));
  display: flex;
  align-items: flex-end;
  padding: 40px;
}

.page-hero .page-hero-overlay h1 {
  color: var(--color-white);
  font-size: 2rem;
}

.page-content {
  padding: 40px 0 60px;
}

.page-content p {
  margin-bottom: 16px;
  line-height: 1.8;
}

/* ========================================
   搜索页
   ======================================== */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(34, 47, 62, 0.95);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-box {
  width: 90%;
  max-width: 600px;
}

.search-box input {
  width: 100%;
  padding: 18px 24px;
  font-size: 1.2rem;
  border: none;
  border-radius: var(--radius-lg);
  outline: none;
  background: var(--color-white);
}

.search-close {
  position: absolute;
  top: 30px;
  right: 30px;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2rem;
  cursor: pointer;
}

/* ========================================
   404页面
   ======================================== */
.error-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}

.error-page .error-code {
  font-size: 8rem;
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.3;
  line-height: 1;
}

.error-page h1 {
  font-size: 1.8rem;
  margin: 16px 0 12px;
}

.error-page p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* ========================================
   商品详情放大镜
   ======================================== */
.product-zoom-container {
  position: relative;
  overflow: hidden;
  cursor: crosshair;
}

.product-zoom-container .zoom-lens {
  position: absolute;
  width: 150px;
  height: 150px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  background: rgba(255, 159, 67, 0.1);
  display: none;
  pointer-events: none;
}

.product-zoom-container:hover .zoom-lens {
  display: block;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .ip-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .crowdfund-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow-md);
  }
  
  .main-nav.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-content h2 {
    font-size: 1.5rem;
  }
  
  .hero-overlay {
    padding: 0 20px;
  }
  
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  .ip-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  
  .buyer-masonry {
    columns: 2;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .crowdfund-card {
    flex-direction: column;
  }
  
  .crowdfund-card .crowdfund-img {
    width: 100%;
    height: 180px;
  }
  
  .mini-cart {
    width: 100%;
    right: -100%;
  }
  
  .section-title h2 {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .ip-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .ip-card .ip-icon {
    width: 60px;
    height: 60px;
  }
  
  .hero-slide {
    aspect-ratio: 16/9;
  }
  
  .buyer-masonry {
    columns: 2;
  }
}

/* ========================================
   动画效果
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cartBounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

.cart-bounce {
  animation: cartBounce 0.4s ease;
}

/* 抛物线动画 */
.fly-to-cart {
  position: fixed;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  z-index: 9999;
  pointer-events: none;
  transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* 盲盒拆箱动效 */
@keyframes boxShake {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-3deg); }
  75% { transform: rotate(3deg); }
}

.blindbox-shake {
  animation: boxShake 0.3s ease infinite;
}

@keyframes boxOpen {
  0% { transform: rotateX(0deg); }
  100% { transform: rotateX(-120deg); transform-origin: top; }
}

/* ========================================
   通用工具类
   ======================================== */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }
.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}