/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
}

:root {
  /* 主色调 */
  --primary-color: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  
  /* 辅助色 */
  --accent-color: #10b981;
  --accent-dark: #059669;
  
  /* 中性色 */
  --text-color: #1f2937;
  --text-light: #4b5563;
  --text-lighter: #9ca3af;
  
  /* 背景色 */
  --bg-color: #f9fafb;
  --card-bg: #ffffff;
  
  /* 边框和阴影 */
  --border-color: #e5e7eb;
  --border-radius: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* 动画 */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  font-size: 16px;
}

.container {
  width: 90%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* 头部样式 */
header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  padding: 3rem 0;
  text-align: center;
  margin-bottom: 2.5rem;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
  pointer-events: none;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.025em;
}

header p {
  font-size: 1.125rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

header i {
  margin-right: 0.75rem;
}

/* 搜索栏样式 */
.search-container {
  display: flex;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: var(--card-bg);
  transition: var(--transition);
}

.search-container:focus-within {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

#searchInput {
  flex: 1;
  padding: 1rem 1.25rem;
  border: none;
  font-size: 1rem;
  outline: none;
  color: var(--text-color);
}

#searchBtn {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 0 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.125rem;
}

#searchBtn:hover {
  background-color: var(--primary-dark);
}

/* 分类按钮样式 */
.categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  justify-content: center;
}

.category-btn {
  background-color: var(--card-bg);
  color: var(--text-light);
  border: 1px solid var(--border-color);
  padding: 0.625rem 1.25rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9375rem;
  font-weight: 500;
}

.category-btn:hover {
  background-color: #f3f4f6;
  color: var(--text-color);
}

.category-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 2px 5px rgba(59, 130, 246, 0.3);
}

/* 工具卡片网格 */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.tool-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
}

.tool-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* 卡片图片区域 */
.tool-image-container {
  width: 100%;
  height: 160px;
  background-color: #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.tool-card:hover .tool-image {
  transform: scale(1.05);
}

/* 隐藏卡片图标 */
.tool-card i,
.tool-card .card-icon {
  display: none !important;
}

.tool-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.tool-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-color);
  line-height: 1.4;
}

.tool-description {
  color: var(--text-light);
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
  line-height: 1.6;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tool-tag {
  background-color: #f3f4f6;
  color: var(--text-light);
  font-size: 0.75rem;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-weight: 500;
}

/* 按钮样式 */
.tool-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  margin-top: auto;
  border-top: 1px solid var(--border-color);
}

.tool-actions {
  display: flex;
  gap: 0.75rem;
}

.tool-link, .buy-link {
  text-decoration: none !important;
  padding: 0.625rem 1rem;
  border-radius: 0.5rem;
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  cursor: pointer;
}

.tool-link {
  background-color: transparent;
  color: var(--primary-color) !important;
  border: 1px solid var(--primary-color);
}

.tool-link::before {
  font-family: "Font Awesome 6 Free";
  content: "\f04b";
  font-weight: 900;
  margin-right: 0.5rem;
  font-size: 0.75rem;
}

.tool-link:hover {
  background-color: var(--primary-color);
  color: white !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(59, 130, 246, 0.25);
}

.tool-link:hover::before {
  color: white;
}

.buy-link {
  background-color: var(--accent-color);
  color: white !important;
  border: 1px solid var(--accent-color);
}

.buy-link::before {
  font-family: "Font Awesome 6 Free";
  content: "\f07a";
  font-weight: 900;
  margin-right: 0.5rem;
  font-size: 0.75rem;
}

.buy-link:hover {
  background-color: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(16, 185, 129, 0.25);
}

.tool-author {
  color: var(--text-lighter);
  font-size: 0.8125rem;
}

/* 分页样式 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: 3rem 0;
}

.page-btn {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.page-btn:hover {
  background-color: #f3f4f6;
  border-color: #d1d5db;
}

.page-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 2px 5px rgba(59, 130, 246, 0.3);
}

/* 微信二维码弹窗 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: modalFadeIn 0.3s ease-out;
}

.qr-code-container {
    margin: 1.5rem 0;
    display: flex;
    justify-content: center;
}

.qr-code-container img {
    width: 200px; /* 控制二维码宽度 */
    height: 200px; /* 控制二维码高度 */
    object-fit: contain; /* 保持图片比例 */
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: 0.5rem;
}

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

.close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-lighter);
  transition: var(--transition);
}

.close-btn:hover {
  color: var(--text-color);
}

.qr-code-container {
  margin: 1.5rem 0;
}

.qr-code-container img {
  max-width: 200px;
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  border-radius: 0.5rem;
}

/* 页脚样式 */
footer {
  background-color: #f3f4f6;
  color: var(--text-light);
  text-align: center;
  padding: 2rem 0;
  margin-top: 3rem;
  border-top: 1px solid var(--border-color);
}

/* 动画效果 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.tool-card {
  animation: fadeIn 0.5s ease forwards;
  animation-delay: calc(var(--card-index, 0) * 0.05s);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  header h1 {
    font-size: 2.25rem;
  }
}

@media (max-width: 768px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  header h1 {
    font-size: 2rem;
  }
  
  .tool-content {
    padding: 1.25rem;
  }
  
  .tool-title {
    font-size: 1.125rem;
  }
}

@media (max-width: 576px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }
  
  header h1 {
    font-size: 1.75rem;
  }
  
  .category-btn {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
  }
  
  .search-container {
    margin-bottom: 1.5rem;
  }
  
  #searchInput {
    padding: 0.875rem 1rem;
  }
}