/* 主页面特定样式 - 工具站主页 */
/* 注意：基础CSS变量和通用样式已在 shared/css/common.css 中定义 */

/* 主页面特定的CSS变量 */
:root {
  /* 布局尺寸 */
  --header-height: 60px;
  --sidebar-width: 200px;
  --sidebar-collapsed-width: 60px;

  /* 主页面特定阴影 */
  --shadow-card: 0 6px 20px rgba(106, 123, 255, 0.08);
  --shadow-hover: 0 8px 25px rgba(106, 123, 255, 0.12);
  --shadow-focus: 0 0 0 3px rgba(106, 123, 255, 0.1);

  /* 圆角变量 - 与common.css保持一致 */
  --radius-sm: var(--border-radius-sm);
  --radius-md: var(--border-radius);
  --radius-lg: var(--border-radius-lg);
}

/* 暗色主题特定适配 */
[data-theme="dark"] {
  --shadow-card: 0 6px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.4);
}

/* 暗色主题下拉框样式适配 */
[data-theme="dark"] .search-type-select {
  background-color: var(--bg-secondary);
  border-color: #374151;
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);

  /* 暗色主题箭头 */
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%239ca3af" d="M1.41 0L6 4.59L10.59 0L12 1.41L6 7.41L0 1.41L1.41 0Z"/></svg>');
}

[data-theme="dark"] .search-type-select:hover {
  border-color: var(--accent-color);
  background-color: var(--bg-card);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2);

  /* 悬浮时箭头颜色 */
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%233b82f6" d="M1.41 0L6 4.59L10.59 0L12 1.41L6 7.41L0 1.41L1.41 0Z"/></svg>');
}

[data-theme="dark"] .search-type-select:focus {
  border-color: var(--accent-color);
  background-color: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2), 0 4px 6px rgba(0, 0, 0, 0.3);

  /* 聚焦时箭头颜色 */
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%233b82f6" d="M1.41 0L6 4.59L10.59 0L12 1.41L6 7.41L0 1.41L1.41 0Z"/></svg>');
}

/* 暗色主题选项样式 */
[data-theme="dark"] .search-type-select option {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

[data-theme="dark"] .search-type-select option:hover {
  background-color: var(--bg-card);
  color: var(--accent-color);
  background-image: linear-gradient(
    90deg,
    rgba(59, 130, 246, 0.1) 0%,
    rgba(59, 130, 246, 0.15) 100%
  );
}

[data-theme="dark"] .search-type-select option:checked,
[data-theme="dark"] .search-type-select option:selected {
  background-color: var(--accent-color);
  color: white;
  background-image: linear-gradient(
    90deg,
    var(--accent-color) 0%,
    #2563eb 100%
  );
}

[data-theme="dark"] .search-type-select option:focus {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent-color);
}

/* 暗色主题按钮适配 */
[data-theme="dark"] .btn-primary {
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

[data-theme="dark"] .btn-primary:hover {
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

[data-theme="dark"] .btn-primary:focus {
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.4);
}

[data-theme="dark"] .btn-secondary {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-secondary);
}

[data-theme="dark"] .btn-primary.success {
  box-shadow: 0 4px 15px rgba(72, 187, 120, 0.4);
}

[data-theme="dark"] .btn-primary.success:hover {
  box-shadow: 0 8px 25px rgba(72, 187, 120, 0.5);
}

/* 顶部导航栏 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: var(--transition);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-lg);
  max-width: 100%;
}

/* Logo区域 */
.logo-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

/* 搜索框 */
.search-container {
  flex: 1;
  max-width: 600px;
  margin: 0 var(--spacing-xl);
  position: relative;
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
}

/* 搜索类型选择器 */
.search-type-selector {
  flex-shrink: 0;
}

.search-type-select {
  /* 移除浏览器默认样式 */
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;

  /* 基础样式 */
  height: 42px;
  width: 140px;
  padding: 8px 36px 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* 自定义下拉箭头 */
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%236b7280" d="M1.41 0L6 4.59L10.59 0L12 1.41L6 7.41L0 1.41L1.41 0Z"/></svg>');
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px 8px;

  /* 阴影效果 */
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  position: relative;
}

/* 悬浮状态 */
.search-type-select:hover {
  border-color: var(--accent-color);
  background-color: var(--bg-card);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);

  /* 悬浮时箭头颜色变化 */
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%233b82f6" d="M1.41 0L6 4.59L10.59 0L12 1.41L6 7.41L0 1.41L1.41 0Z"/></svg>');
}

/* 聚焦状态 */
.search-type-select:focus {
  outline: none;
  border-color: var(--accent-color);
  background-color: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), 0 4px 6px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);

  /* 聚焦时箭头颜色变化 */
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%233b82f6" d="M1.41 0L6 4.59L10.59 0L12 1.41L6 7.41L0 1.41L1.41 0Z"/></svg>');
}

/* 激活状态 */
.search-type-select:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  border-color: #2563eb;
}

/* 下拉框展开动画 */
.search-type-select[aria-expanded="true"] {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), 0 4px 6px rgba(0, 0, 0, 0.1);

  /* 展开时箭头旋转 */
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%233b82f6" d="M10.59 8L6 3.41L1.41 8L0 6.59L6 0.59L12 6.59L10.59 8Z"/></svg>');
}

/* Element UI 下拉框自定义样式 */
.search-type-select-element {
  width: 140px !important;
}

.search-type-select-element .el-input {
  height: 42px !important;
}

.search-type-select-element .el-input__inner {
  height: 42px !important;
  line-height: 42px !important;
  padding: 0 30px 0 12px !important;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-lg) !important;
  background-color: var(--bg-secondary) !important;
  color: var(--text-primary) !important;
  font-size: 0.875rem !important;
  font-weight: 500 !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06) !important;
}

.search-type-select-element .el-input__inner:hover {
  border-color: var(--accent-color) !important;
  background-color: var(--bg-card) !important;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06) !important;
  transform: translateY(-1px);
}

.search-type-select-element .el-input__inner:focus {
  border-color: var(--accent-color) !important;
  background-color: var(--bg-card) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), 0 4px 6px rgba(0, 0, 0, 0.1) !important;
  transform: translateY(-1px);
}

.search-type-select-element .el-input__suffix {
  right: 8px !important;
}

.search-type-select-element .el-input__suffix .el-input__icon {
  color: #6b7280 !important;
  transition: color 0.3s ease !important;
}

.search-type-select-element:hover .el-input__suffix .el-input__icon {
  color: var(--accent-color) !important;
}

/* Element UI 下拉面板样式 */
.el-select-dropdown {
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-lg) !important;
  background-color: var(--bg-secondary) !important;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05) !important;
  margin-top: 4px !important;
}

.el-select-dropdown .el-scrollbar {
  border-radius: var(--radius-lg) !important;
}

.el-select-dropdown .el-select-dropdown__item {
  height: 36px !important;
  line-height: 36px !important;
  padding: 0 16px !important;
  color: var(--text-primary) !important;
  font-size: 0.875rem !important;
  font-weight: 500 !important;
  transition: all 0.2s ease !important;
}

.el-select-dropdown .el-select-dropdown__item:hover {
  background-color: var(--bg-card) !important;
  color: var(--accent-color) !important;
  background-image: linear-gradient(
    90deg,
    rgba(59, 130, 246, 0.08) 0%,
    rgba(59, 130, 246, 0.12) 100%
  ) !important;
  transform: translateX(2px);
  border-left: 3px solid var(--accent-color);
}

.el-select-dropdown .el-select-dropdown__item.selected {
  background-color: var(--accent-color) !important;
  font-weight: 600 !important;
  background-image: linear-gradient(
    135deg,
    var(--accent-color) 0%,
    #2563eb 50%,
    #1d4ed8 100%
  ) !important;
  border-left: 3px solid #1e40af;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
  position: relative;
}

.el-select-dropdown .el-select-dropdown__item.selected::after {
  display: none !important;
}

/* 暗色主题适配 Element UI */
[data-theme="dark"] .search-type-select-element .el-input__inner {
  background-color: var(--bg-secondary) !important;
  border-color: #374151 !important;
  color: var(--text-primary) !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2) !important;
}

[data-theme="dark"] .search-type-select-element .el-input__inner:hover {
  border-color: var(--accent-color) !important;
  background-color: var(--bg-card) !important;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2) !important;
}

[data-theme="dark"] .search-type-select-element .el-input__inner:focus {
  border-color: var(--accent-color) !important;
  background-color: var(--bg-card) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2), 0 4px 6px rgba(0, 0, 0, 0.3) !important;
}

[data-theme="dark"] .el-select-dropdown {
  background-color: var(--bg-secondary) !important;
  border-color: #374151 !important;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3), 0 4px 6px rgba(0, 0, 0, 0.2) !important;
}

[data-theme="dark"] .el-select-dropdown .el-select-dropdown__item {
  color: var(--text-primary) !important;
}

[data-theme="dark"] .el-select-dropdown .el-select-dropdown__item:hover {
  background-color: var(--bg-card) !important;
  color: var(--accent-color) !important;
  background-image: linear-gradient(
    90deg,
    rgba(59, 130, 246, 0.12) 0%,
    rgba(59, 130, 246, 0.18) 100%
  ) !important;
  transform: translateX(2px);
  border-left: 3px solid var(--accent-color);
}

[data-theme="dark"] .el-select-dropdown .el-select-dropdown__item.selected {
  background-color: var(--accent-color) !important;
  color: white !important;
  background-image: linear-gradient(
    135deg,
    var(--accent-color) 0%,
    #2563eb 50%,
    #1d4ed8 100%
  ) !important;
  border-left: 3px solid #1e40af;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

[data-theme="dark"]
  .el-select-dropdown
  .el-select-dropdown__item.selected::before {
  content: "✓";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: bold;
  font-size: 14px;
  color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .search-type-select {
    width: 120px;
    font-size: 0.8rem;
    padding: 6px 32px 6px 10px;
    height: 38px;
  }

  .search-type-select-element {
    width: 120px !important;
  }

  .search-type-select-element .el-input {
    height: 38px !important;
  }

  .search-type-select-element .el-input__inner {
    height: 38px !important;
    line-height: 38px !important;
    font-size: 0.8rem !important;
    padding: 0 28px 0 10px !important;
  }
}

/* 选项基础样式 */
.search-type-select option {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  line-height: 1.4;
  min-height: 36px;
  cursor: pointer;
  transition: all 0.2s ease;
}

/* 选项悬浮状态 */
.search-type-select option:hover {
  background-color: var(--bg-card);
  color: var(--accent-color);
  background-image: linear-gradient(
    90deg,
    rgba(59, 130, 246, 0.05) 0%,
    rgba(59, 130, 246, 0.1) 100%
  );
}

/* 选项选中状态 */
.search-type-select option:checked,
.search-type-select option:selected {
  background-color: var(--accent-color);
  color: white;
  font-weight: 600;
  background-image: linear-gradient(
    90deg,
    var(--accent-color) 0%,
    #2563eb 100%
  );
}

/* 选项聚焦状态 */
.search-type-select option:focus {
  outline: none;
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--accent-color);
}

.suggestions-header {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.suggestion-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: var(--transition-fast);
  gap: var(--spacing-sm);
}

.suggestion-item:hover {
  background-color: var(--bg-secondary);
}

.suggestion-icon {
  font-size: 0.875rem;
  flex-shrink: 0;
}

.suggestion-text {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.suggestion-type {
  font-size: 0.75rem;
  color: var(--text-muted);
  background-color: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.history-item .remove-history {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  border-radius: 50%;
  transition: var(--transition-fast);
  margin-left: auto;
}

.history-item .remove-history:hover {
  background-color: var(--border-color);
  color: var(--text-secondary);
}

/* 搜索容器响应式 */
@media (max-width: 768px) {
  .search-container {
    flex-direction: column;
    gap: var(--spacing-sm);
    margin: 0 var(--spacing-md);
  }

  .search-type-selector {
    width: 100%;
  }

  .search-type-select {
    width: 100%;
    min-width: auto;
  }

  .header-content {
    padding: 0 var(--spacing-md);
  }

  .site-title {
    font-size: 1.125rem;
  }
}

.search-box input {
  width: 100%;
  height: 40px;
  padding: 0 var(--spacing-md) 0 44px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
}

.search-box input:hover {
  border-color: var(--accent-color);
  background-color: var(--bg-card);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-color);
  background-color: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), 0 4px 6px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

/* 暗色主题搜索框适配 */
[data-theme="dark"] .search-box input {
  background-color: var(--bg-secondary);
  border-color: #374151;
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .search-box input:hover {
  border-color: var(--accent-color);
  background-color: var(--bg-card);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .search-box input:focus {
  border-color: var(--accent-color);
  background-color: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2), 0 4px 6px rgba(0, 0, 0, 0.3);
}

.search-icon {
  position: absolute;
  left: var(--spacing-md);
  color: var(--text-muted);
  pointer-events: none;
  z-index: 1;
}

.search-clear {
  position: absolute;
  right: var(--spacing-md);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  border-radius: 50%;
  transition: var(--transition-fast);
}

.search-clear:hover {
  color: var(--text-secondary);
  background-color: var(--border-color);
}

/* 右侧操作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.theme-toggle,
.sidebar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.theme-toggle:hover,
.sidebar-toggle:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

/* 主容器 */
.main-container {
  margin-top: var(--header-height);
  margin-left: var(--sidebar-width);
  min-height: calc(100vh - var(--header-height));
  transition: var(--transition);
}

/* 侧边栏 */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  background-color: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  padding: var(--spacing-lg) 0;
  overflow-y: auto;
  transition: var(--transition);
  z-index: 100;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.main-container.sidebar-collapsed {
  margin-left: var(--sidebar-collapsed-width);
}

.nav-header {
  padding: 0 var(--spacing-lg) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
}

.nav-header h2 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.category-list {
  list-style: none;
}

.category-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-md);
  margin: 0 var(--spacing-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  gap: var(--spacing-sm);
}

.category-item:hover {
  background-color: var(--bg-secondary);
}

.category-item.active {
  background: var(--accent-color);
  color: white;
  border-radius: var(--radius-md);
}

.category-icon {
  font-size: 1rem;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}

.category-name {
  flex: 1;
  font-weight: 500;
  white-space: nowrap;
}

.category-count {
  background-color: rgba(255, 255, 255, 0.2);
  color: inherit;
  padding: 2px 6px;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 500;
  min-width: 18px;
  text-align: center;
  white-space: nowrap;
  flex-shrink: 0;
  max-width: 40px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.category-item.active .category-count {
  background-color: rgba(255, 255, 255, 0.3);
}

.category-item:not(.active) .category-count {
  background-color: var(--border-color);
  color: var(--text-muted);
}

/* 内容区域 */
.content-area {
  padding: var(--spacing-xl);
  overflow-y: auto;
}

.content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.breadcrumb-item {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.content-stats {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* 工具网格 */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

/* 工具卡片 */
.tool-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: visible;
  display: flex;
  flex-direction: column;
  height: 188px;
  min-height: 188px;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-hover);
}

.tool-card.coming-soon {
  opacity: 0.7;
  cursor: default;
}

.tool-card.coming-soon:hover {
  transform: none;
  box-shadow: var(--shadow-card);
  border-color: var(--border-color);
}

.tool-card:active {
  transform: translateY(-2px) scale(0.98);
}

.card-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.675rem;
  color: white;
  flex-shrink: 0;
  margin-bottom: 10px;
}

.card-header2 {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: 10px;
}

.card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  flex: 1;
}

.card-usage {
  font-size: 0.7rem;
  color: var(--text-muted);
  background-color: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  flex-shrink: 0;
}

.card-description {
  color: var(--text-secondary);
  font-size: 0.75rem;
  line-height: 1.3;
  margin-bottom: var(--spacing-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  position: relative;
  cursor: help;
  flex: 1;
}

.card-description:hover::after {
  content: attr(data-full-text);
  position: absolute;
  top: 100%;
  left: 0;
  right: -20px;
  background: linear-gradient(
    135deg,
    var(--bg-card) 0%,
    var(--bg-secondary) 100%
  );
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  z-index: 9999;
  color: var(--text-primary);
  font-size: 0.8rem;
  line-height: 1.4;
  white-space: normal;
  word-wrap: break-word;
  animation: tooltipFadeIn 0.2s ease-out;
  backdrop-filter: blur(10px);
  max-width: 280px;
  margin-top: 4px;
}

@keyframes tooltipFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* 移除标签样式 */

.card-action {
  width: 80%;
  max-width: 120px;
  padding: 10px var(--spacing-sm);
  min-height: 40px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent-color);
  color: white;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition-fast);
  flex-shrink: 0;
  margin-top: 8px;
}

.card-action:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* 优化的使用工具按钮样式 */
.btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  text-transform: none;
  letter-spacing: 0.5px;
  min-height: 44px;
  text-decoration: none;
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
  background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
}

.btn-primary:disabled {
  background: linear-gradient(135deg, #a0aec0 0%, #718096 100%);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary:disabled:hover {
  transform: none;
  box-shadow: none;
  background: linear-gradient(135deg, #a0aec0 0%, #718096 100%);
}

.btn-primary:disabled::before {
  display: none;
}

/* 优化即将推出按钮样式 */
.btn-secondary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 14px;
  cursor: not-allowed;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 44px;
  text-decoration: none;
  opacity: 0.7;
}

.btn-secondary:disabled {
  opacity: 0.6;
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-muted);
}

/* 按钮加载状态 */
.btn-primary.loading {
  pointer-events: none;
}

.btn-primary.loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  margin: auto;
  border: 2px solid transparent;
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: button-loading-spinner 1s ease infinite;
}

@keyframes button-loading-spinner {
  from {
    transform: rotate(0turn);
  }
  to {
    transform: rotate(1turn);
  }
}

/* 按钮成功状态 */
.btn-primary.success {
  background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
  box-shadow: 0 4px 15px rgba(72, 187, 120, 0.3);
}

.btn-primary.success:hover {
  background: linear-gradient(135deg, #38a169 0%, #2f855a 100%);
  box-shadow: 0 8px 25px rgba(72, 187, 120, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .btn-primary,
  .btn-secondary {
    padding: 10px 20px;
    font-size: 13px;
    min-height: 40px;
  }
}

@media (max-width: 480px) {
  .btn-primary,
  .btn-secondary {
    padding: 8px 16px;
    font-size: 12px;
    min-height: 36px;
  }
}

.tool-content {
  flex: 1;
  margin-bottom: 16px;
  position: relative;
}

.tool-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

.tool-status {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.tool-status.coming-soon {
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: #8b5a00;
  border: 1px solid #ffd700;
}

.btn-secondary {
  background: var(--border-color);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 500;
  cursor: not-allowed;
  transition: all 0.3s ease;
}

.btn-secondary:disabled {
  opacity: 0.6;
}

.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  grid-column: 1 / -1;
}

.no-results-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.no-results h3 {
  margin: 0 0 8px 0;
  color: var(--text-primary);
  font-size: 20px;
}

.no-results p {
  margin: 0;
  font-size: 14px;
}

/* 骨架屏 */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl) 0;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

.empty-state p {
  font-size: 0.875rem;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--accent-color);
  color: white;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .main-container {
    margin-left: 0;
  }

  .sidebar {
    left: -100%;
    width: 280px;
    z-index: 999;
  }

  .sidebar.open {
    left: 0;
  }

  .header-content {
    padding: 0 var(--spacing-md);
  }

  .search-container {
    margin: 0 var(--spacing-md);
  }

  .site-title {
    display: none;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .content-area {
    padding: var(--spacing-lg);
  }

  .content-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  /* 移动端字体调整 */
  .card-title {
    font-size: 20px;
    line-height: 1.2;
  }

  .card-description {
    font-size: 14px;
    height: 39.2px; /* 1.4 * 14px * 2 */
  }
}

/* 平板尺寸 */
@media (min-width: 769px) and (max-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }

  .search-container {
    max-width: 400px;
  }
}

/* 中等桌面屏幕 */
@media (min-width: 1025px) and (max-width: 1279px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  }
}

/* 大桌面屏幕 */
@media (min-width: 1280px) and (max-width: 1535px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

/* 超大桌面屏幕 */
@media (min-width: 1536px) and (max-width: 1919px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  }

  .header-content {
    max-width: 1400px;
    margin: 0 auto;
  }
}

/* 超宽屏幕 */
@media (min-width: 1920px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }

  .header-content {
    max-width: 1600px;
    margin: 0 auto;
  }
}

/* 侧边栏收缩状态 */
.sidebar.collapsed .category-name,
.sidebar.collapsed .category-count,
.sidebar.collapsed .nav-header {
  display: none;
}

.sidebar.collapsed .category-item {
  justify-content: center;
  padding: var(--spacing-md);
}

/* 无障碍支持 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 焦点样式 */
.tool-card:focus,
.category-item:focus,
input:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ==================== 搜索功能增强样式 ==================== */

/* 搜索建议容器 */
.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  width: 464px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  max-height: 300px;
  overflow-y: auto;
  z-index: 1001;
  margin-top: 4px;
  /* 添加自定义滚动条样式 */
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

/* Webkit浏览器滚动条样式 */
.search-suggestions::-webkit-scrollbar {
  width: 6px;
}

.search-suggestions::-webkit-scrollbar-track {
  background: transparent;
}

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

.search-suggestions::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* 搜索建议头部 */
.suggestions-header {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

/* 搜索建议项 */
.suggestion-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.suggestion-item:hover {
  background: var(--bg-secondary);
}

.suggestion-item:not(:last-child) {
  border-bottom: 1px solid var(--border-color);
}

.suggestion-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

.suggestion-text {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.suggestion-type {
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

/* 历史记录项特殊样式 */
.history-item {
  padding-right: 40px;
}

.remove-history {
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  opacity: 0;
}

.history-item:hover .remove-history {
  opacity: 1;
}

.remove-history:hover {
  background: var(--bg-danger);
  color: var(--text-danger);
}

/* ==================== 工具卡片增强样式 ==================== */

/* 工具头部布局 */
.tool-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.tool-header .tool-icon {
  font-size: 2rem;
  margin: 0;
}

/* 收藏按钮 */
.favorite-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.favorite-btn:hover {
  background: var(--bg-secondary);
  color: var(--primary-color);
  transform: scale(1.1);
}

.favorite-btn.favorited {
  color: #ffc107;
  background: rgba(255, 193, 7, 0.1);
  box-shadow: 0 0 8px rgba(255, 193, 7, 0.3);
}

.favorite-btn.favorited:hover {
  color: #ffb300;
  background: rgba(255, 193, 7, 0.2);
  box-shadow: 0 0 12px rgba(255, 193, 7, 0.4);
  transform: scale(1.15);
}

.favorite-btn.favorited::after {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: 6px;
  height: 6px;
  background: #ffc107;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.7;
  }
  100% {
    transform: scale(0.8);
    opacity: 1;
  }
}

.favorite-btn.favorited svg path {
  fill: currentColor;
  stroke: currentColor;
}

.favorite-btn svg {
  transition: var(--transition);
}

.favorite-btn:hover svg {
  transform: scale(1.1);
}

/* 使用统计信息 */
.usage-info {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
  padding: 2px 6px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  display: inline-block;
}

/* ==================== 响应式适配 ==================== */

/* 移动端搜索建议适配 */
@media (max-width: 768px) {
  .search-suggestions {
    left: -16px;
    right: -16px;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .suggestion-item {
    padding: var(--spacing-md);
  }

  .suggestion-text {
    font-size: 1rem;
  }
}

/* 小屏幕收藏按钮适配 */
@media (max-width: 480px) {
  .tool-header {
    margin-bottom: var(--spacing-sm);
  }

  .favorite-btn {
    padding: 4px;
  }

  .favorite-btn svg {
    width: 14px;
    height: 14px;
  }
}

/* ==================== 暗色主题适配 ==================== */

[data-theme="dark"] .search-suggestions {
  background: var(--bg-primary);
  border-color: var(--border-color);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .suggestion-item:hover {
  background: var(--bg-secondary);
}

[data-theme="dark"] .suggestion-type {
  background: var(--bg-tertiary);
}

[data-theme="dark"] .remove-history:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

[data-theme="dark"] .favorite-btn {
  color: #666;
}

[data-theme="dark"] .favorite-btn:hover {
  background-color: rgba(255, 193, 7, 0.2);
  color: #ffc107;
}

[data-theme="dark"] .favorite-btn.favorited {
  color: #ffc107;
  background-color: rgba(255, 193, 7, 0.15);
  box-shadow: 0 0 10px rgba(255, 193, 7, 0.4);
}

[data-theme="dark"] .favorite-btn.favorited:hover {
  background-color: rgba(255, 193, 7, 0.25);
  box-shadow: 0 0 15px rgba(255, 193, 7, 0.5);
}

[data-theme="dark"] .favorite-btn.favorited::after {
  background: #ffeb3b;
  box-shadow: 0 0 4px rgba(255, 235, 59, 0.6);
}

[data-theme="dark"] .usage-info {
  background: var(--bg-tertiary);
}

/* ==================== 动画效果 ==================== */

/* 搜索建议出现动画 */
.search-suggestions {
  animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 收藏按钮点击动画 */
.favorite-btn.favorited {
  animation: favoriteAdded 0.3s ease-out;
}

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

/* 使用统计信息出现动画 */
.usage-info {
  animation: fadeInUp 0.3s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 减少动画偏好适配 */
@media (prefers-reduced-motion: reduce) {
  .search-suggestions,
  .favorite-btn.favorited,
  .usage-info {
    animation: none;
  }

  .favorite-btn:hover {
    transform: none;
  }
}

/* 打印样式 */
@media print {
  .header,
  .sidebar,
  .back-to-top,
  .search-suggestions,
  .favorite-btn {
    display: none;
  }

  .main-container {
    grid-template-columns: 1fr;
    margin-top: 0;
  }

  .tool-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .tool-header {
    justify-content: flex-start;
  }
}

/* 顶栏：图标与收藏按钮同一行两端对齐 */
.card-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

/* 顶栏内按钮图标尺寸统一 */
.card-topbar .favorite-btn svg {
  width: 18px;
  height: 18px;
}

/* 默认空心星 */
.card-topbar .favorite-btn svg polygon {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linejoin: round;
}
/* 已收藏填充星 */
.card-topbar .favorite-btn.favorited svg polygon {
  fill: currentColor;
  stroke: currentColor;
}

/* 默认空心星 */
.card-topbar .favorite-btn svg polygon {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linejoin: round;
}
/* 已收藏填充星 */
.card-topbar .favorite-btn.favorited svg polygon {
  fill: currentColor;
  stroke: currentColor;
}