/* ---------- CSS 变量：主题配置 ---------- */
:root {
  /* 主色调 - 现代蓝紫色系 */
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --primary-glow: rgba(99, 102, 241, 0.25);
  
  /* 中性色 - 浅色模式 */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-soft: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-light: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 暗色模式自动适配 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #0f172a;
    --bg-surface: #1e293b;
    --bg-surface-soft: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-light: #334155;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --primary-glow: rgba(99, 102, 241, 0.35);
  }
}

/* ---------- 全局重置与基础 ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 优雅滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-surface-soft);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 10px;
}

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

.flex {
  display: flex;
  align-items: center;
}

/* ---------- 头部区域：渐变玻璃效果 ---------- */
header {
  background: linear-gradient(135deg, #1e1b4b 0%, #2d3a6e 50%, #1e2a5e 100%);
  color: white;
  padding: 3rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(2px);
  box-shadow: var(--shadow-lg);
}

/* 动态光晕 */
header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 140%;
  height: 140%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
  pointer-events: none;
  animation: shimmer 12s infinite linear;
}

@keyframes shimmer {
  0% { transform: translateX(-30%) translateY(-30%) rotate(0deg); opacity: 0.5; }
  100% { transform: translateX(30%) translateY(30%) rotate(10deg); opacity: 0.8; }
}

header h1 {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  background: linear-gradient(to right, #fff, #c7d2fe);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: relative;
  z-index: 2;
}

/* 搜索容器 - 玻璃态卡片 */
.search-container {
  max-width: 560px;
  margin: 1.5rem auto 0;
  display: flex;
  gap: 0.75rem;
  position: relative;
  z-index: 2;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem;
  border-radius: 60px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.search-container input {
  flex: 1;
  padding: 0.9rem 1.5rem;
  border: none;
  border-radius: 60px;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-primary);
  transition: var(--transition);
  outline: none;
  font-weight: 500;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.05);
}

.search-container input:focus {
  background: white;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3), inset 0 1px 2px rgba(0,0,0,0.05);
  transform: scale(1.01);
}

.search-container button {
  padding: 0.9rem 2rem;
  background: linear-gradient(105deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border: none;
  border-radius: 60px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

.search-container button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(79, 70, 229, 0.4);
  filter: brightness(1.05);
}

/* ---------- 筛选区域 ---------- */
.filter-container {
  max-width: 1280px;
  margin: 2rem auto 1.5rem;
  padding: 0 1.5rem;
}

.filter-container h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  display: inline-block;
  background: linear-gradient(120deg, var(--primary), var(--primary-light));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.tag {
  padding: 0.5rem 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 40px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  backdrop-filter: blur(4px);
  box-shadow: var(--shadow-sm);
}

.tag:hover {
  background: var(--primary-glow);
  border-color: var(--primary-light);
  color: var(--primary);
  transform: translateY(-1px);
}

.tag.active {
  background: linear-gradient(115deg, var(--primary), var(--primary-dark));
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 12px var(--primary-glow);
}

/* ---------- 主内容区 ---------- */
main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 表格容器 - 精致卡片效果 */
.versions-container {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow-x: auto;
  margin: 1rem 0;
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

/* 表格样式重构 */
.versions-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.9rem;
}

.versions-table th,
.versions-table td {
  padding: 1.25rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.versions-table th {
  background: var(--bg-surface-soft);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border-light);
}

.versions-table th:first-child {
  border-top-left-radius: var(--radius-xl);
}
.versions-table th:last-child {
  border-top-right-radius: var(--radius-xl);
}

.versions-table tr {
  transition: var(--transition);
}

.versions-table tr:hover {
  background: var(--bg-surface-soft);
  transform: scale(1.002);
}

.versions-table tr:last-child td {
  border-bottom: none;
}

/* 版本标签组 */
.version-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.version-tag {
  padding: 0.2rem 0.75rem;
  background: var(--bg-surface-soft);
  border-radius: 40px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

.version-tag:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* 描述容器 */
.description-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.truncated-description {
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--text-secondary);
}

.description-btn {
  align-self: flex-start;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
}

/* 下载链接 - 现代按钮组 */
.download-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  color: var(--primary);
  text-decoration: none;
  border-radius: 40px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.download-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 空状态美化 */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  margin: 2rem 0;
  color: var(--text-muted);
  font-style: normal;
  font-size: 1.1rem;
  border: 1px dashed var(--border-light);
  backdrop-filter: blur(4px);
}

.empty-state::before {
  content: "📦";
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
  opacity: 0.6;
}

/* ---------- 页脚 ---------- */
footer {
  background: var(--bg-surface);
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem 1rem;
  margin-top: 4rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.85rem;
  backdrop-filter: blur(8px);
}

/* ---------- 响应式极致优化 ---------- */
@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }
  
  .search-container {
    flex-direction: column;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 2rem;
    padding: 1rem;
    gap: 0.8rem;
  }
  
  .search-container input,
  .search-container button {
    border-radius: 40px;
    width: 100%;
  }
  
  /* 移动端表格转为块级滚动，确保体验 */
  .versions-container {
    border-radius: var(--radius-lg);
  }
  
  .versions-table th,
  .versions-table td {
    padding: 0.9rem 0.75rem;
    font-size: 0.8rem;
  }
  
  .tag {
    padding: 0.4rem 1rem;
    font-size: 0.75rem;
  }
  
  .download-link {
    padding: 0.4rem 0.8rem;
    font-size: 0.7rem;
  }
  
  .filter-container h2 {
    font-size: 1.1rem;
  }
}

/* 超大屏优化 */
@media (min-width: 1600px) {
  main, .filter-container {
    max-width: 1440px;
  }
}

/* 分页控件 */
.pagination-container {
  max-width: 1280px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.pagination-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-surface);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.page-size-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-size-selector label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.page-size-selector select {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.page-size-selector select:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.pagination-buttons {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.pagination-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#page-info {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  min-width: 120px;
  text-align: center;
}

/* 响应式分页 */
@media (max-width: 768px) {
  .pagination-controls {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }
  
  .page-size-selector {
    justify-content: center;
  }
  
  .pagination-buttons {
    justify-content: center;
  }
}

/* 添加渐入动画，让表格行优雅显示 */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.versions-table tbody tr {
  animation: fadeSlideUp 0.3s ease-out forwards;
}

/* 下载按钮加图标占位符 (仅装饰,不影响功能) */
.download-link::before {
  content: "♥";
  font-size: 0.75rem;
  transition: var(--transition);
  opacity: 0.8;
}

.download-link:hover::before {
  transform: translateY(2px);
}

/* 活动标签点击波纹效果 */
.tag {
  position: relative;
  overflow: hidden;
}

.tag::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 80%);
  transform: translate(-50%, -50%) scale(0);
  border-radius: 50%;
  opacity: 0;
  transition: transform 0.4s, opacity 0.3s;
  pointer-events: none;
}

.tag:active::after {
  transform: translate(-50%, -50%) scale(2);
  opacity: 1;
  transition: 0s;
}

/* ---------- 下载链接弹窗 ---------- */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  transition: var(--transition);
}

.modal.active {
  display: block;
  animation: modal-fade-in 0.3s ease;
}

@keyframes modal-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-content {
  background: var(--bg-surface);
  margin: 15% auto;
  padding: 2rem;
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 500px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-light);
  animation: modal-slide-in 0.3s ease;
  backdrop-filter: blur(8px);
}

@keyframes modal-slide-in {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
  margin: 0;
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
  transition: var(--transition);
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.close-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-soft);
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-body .download-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  color: var(--primary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.modal-body .download-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 弹窗内链接间距优化 */
.modal-body .download-link {
  margin-bottom: 0.5rem;
}
.modal-body .download-link:last-child {
  margin-bottom: 0;
}

/* ---------- 表格内按钮：详情 + 查看（完美适配你的主题） ---------- */
.description-btn,
.download-btn {
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  box-shadow: var(--shadow-sm);
}

/* 详情按钮（灰色系） */
.description-btn {
  background: var(--bg-surface-soft);
  color: var(--text-secondary);
}
.description-btn:hover {
  background: var(--text-muted);
  color: #fff;
  transform: translateY(-1px);
}

/* 查看按钮（使用你的主题主色调） */
.download-btn {
  background: var(--primary);
  color: #fff;
}
.download-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* 让按钮在表格里不挤、更美观 */
.versions-table td button {
  margin-left: 0.4rem;
  white-space: nowrap;
}