:root {
  /* 默认浅色主题 (Light Theme Default) */
  --bg: #f6f7fb;
  --bg-alt: #ffffff;
  --text: #1c2430;
  --muted: #526079;
  --border: #e5e7eb;
  --primary: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --particle-color: rgba(37, 99, 235, 0.5);
  /* Blue for light mode */

  /* Semantic Variables for Elements */
  --bg-element: #ffffff;
  --bg-element-hover: #f0f4ff;
  --border-element: #e5e7eb;
}

/* 暗色模式 (Dark Mode) - 通过 .dark 类或系统偏好 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --bg-alt: #151820;
    --text: #e6e6e6;
    --muted: #a8b0bd;
    --border: #232839;
    --primary: #5c9dff;
    --particle-color: rgba(92, 157, 255, 0.5);
    /* Light blue for dark mode */

    --bg-element: #0c0e12;
    --bg-element-hover: #0e1117;
    --border-element: #232839;
  }
}

body.dark {
  --bg: #0f1115;
  --bg-alt: #151820;
  --text: #e6e6e6;
  --muted: #a8b0bd;
  --border: #232839;
  --primary: #5c9dff;
  --particle-color: rgba(92, 157, 255, 0.5);

  --bg-element: #0c0e12;
  --bg-element-hover: #0e1117;
  --border-element: #232839;
}

body.light {
  --bg: #f6f7fb;
  --bg-alt: #ffffff;
  --text: #1c2430;
  --muted: #526079;
  --border: #e5e7eb;
  --primary: #2563eb;
  --particle-color: rgba(37, 99, 235, 0.5);

  --bg-element: #ffffff;
  --bg-element-hover: #f0f4ff;
  --border-element: #e5e7eb;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  /* Behind everything */
  pointer-events: none;
  /* Let clicks pass through */
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand.home-link {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.brand h1 {
  margin: 0;
  font-size: 20px;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.logo {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 43, 43, 0.1);
  border: 1px solid rgba(255, 123, 123, 0.3);
  display: grid;
  place-items: center;
  font-size: 18px;
  box-shadow: 0 0 10px rgba(255, 69, 0, 0.4);
  animation: pulse-glow 2s infinite alternate;
}

@keyframes pulse-glow {
  from {
    box-shadow: 0 0 5px rgba(255, 69, 0, 0.3);
  }

  to {
    box-shadow: 0 0 15px rgba(255, 69, 0, 0.6), 0 0 5px rgba(255, 255, 0, 0.2);
  }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.clock {
  text-align: right;
}

.time {
  color: var(--text);
  font-size: 14px;
}

.date {
  color: var(--muted);
  font-size: 12px;
}

.toolbar {
  display: flex;
  gap: 8px;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border-element);
  background: var(--bg-element);
  color: var(--text);
  cursor: pointer;
}

.icon-btn:hover {
  background: var(--bg-element-hover);
}

.controls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: nowrap;
}

.controls .right {
  margin-left: auto;
}

.controls .stats {
  padding: 0;
  border-bottom: 0;
  gap: 12px;
}

.controls input[type="search"] {
  padding: 8px 10px;
  border: 1px solid var(--border-element);
  border-radius: 8px;
  background: var(--bg-element);
  color: var(--text);
  min-width: 220px;
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
}

.btn {
  padding: 8px 12px;
  border: 1px solid var(--border-element);
  background: var(--bg-element);
  color: var(--text);
  border-radius: 8px;
  cursor: pointer;
}

.btn:hover {
  background: var(--bg-element-hover);
}

.stats {
  display: flex;
  gap: 16px;
  padding: 12px 20px;
  color: var(--muted);
  border-bottom: 1px dashed var(--border);
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  /* 横向列表：每个卡片占一行 */
  gap: 16px;
  padding: 20px;
  max-width: 1080px;
  /* 居中更好看 */
  margin: 0 auto;
}

.card {
  border: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: 12px;
  padding: 14px;
}

.card-header {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  /* 标题 | 状态 | 条目 | 详情 */
  align-items: center;
  gap: 8px;
}

.card-title {
  margin: 0;
  font-size: 16px;
}

.source-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.source-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  /* Glassmorphism base */
  backdrop-filter: blur(4px);
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.source-icon:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 8px rgba(92, 157, 255, 0.3);
  border-color: rgba(92, 157, 255, 0.3);
}

.source-icon img {
  width: 20px;
  height: 20px;
  display: block;
  object-fit: contain;
}

.source-icon.emoji {
  font-size: 18px;
}

.source-icon.text {
  font-size: 12px;
  color: var(--muted);
  font-weight: bold;
}

.chip {
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.chip.success {
  color: #b5f0c9;
  border-color: #224b36;
  background: #0c2119;
}

.chip.danger {
  color: #ffc7c7;
  border-color: #4b2222;
  background: #210c0c;
}

.chip.warning {
  color: #ffe6b8;
  border-color: #4b3a22;
  background: #21180c;
}

.chip.count {
  color: #b7c9ff;
  border-color: #22284b;
  background: #0c1021;
  min-width: 72px;
  text-align: center;
}

.chip.success,
.chip.danger,
.chip.warning {
  min-width: 48px;
  text-align: center;
}

.card-body {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.card-actions {
  margin-top: 12px;
  display: flex;
  gap: 8px;
}

.link {
  text-decoration: none;
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-element);
  color: var(--text);
  background: var(--bg-element);
}

.link:hover {
  background: var(--bg-element-hover);
}

.link {
  white-space: nowrap;
}

.error {
  margin: 20px;
  padding: 16px;
  border: 1px solid #4b2222;
  background: #210c0c;
  border-radius: 12px;
}

.error.hidden {
  display: none;
}

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

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

/* Page Footer Styles */
.page-footer {
  margin-top: 4rem;
  padding: 2rem 1rem;
  background: var(--bg-element);
  border-top: 1px solid var(--border-element);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--accent);
}

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

.footer-copyright p {
  margin: 0;
}

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(90deg, #0c0e12 25%, #121520 37%, #0c0e12 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* Route page item card */
.item-card {
  border: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  grid-template-columns: 160px 1fr;
  /* 左图右文 */
  gap: 12px;
  align-items: start;
}

.item-media {
  width: 160px;
  height: 120px;
  background: var(--bg-element);
  display: block;
  object-fit: cover;
  border-radius: 8px;
}

.item-content {
  padding: 4px;
}

.item-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.item-title {
  margin: 0;
  font-size: 16px;
}

.item-meta {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
}

.item-actions {
  display: inline-flex;
  gap: 8px;
  margin-left: auto;
}

.item-summary {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.chip.hot {
  color: #ffd1a6;
  border-color: #4b3a22;
  background: #21180c;
}

.chip.time {
  color: #b7c9ff;
  border-color: #22284b;
  background: #0c1021;
}

/* 文本截断工具（用于移动端简略显示） */
.clamp-1 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  line-clamp: 1;
  overflow: hidden;
}

.clamp-2 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}

.clamp-3 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}

/* 适配移动端：默认精简文本，展开后显示完整 */
@media (max-width: 640px) {
  .item-card {
    grid-template-columns: 96px 1fr;
  }

  .item-media {
    width: 96px;
    height: 72px;
  }

  .item-title {
    font-size: 15px;
  }

  .item-card:not(.expanded) .item-title {
    /* 标题默认截断为一行 */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    line-clamp: 1;
    overflow: hidden;
  }

  .item-card:not(.expanded) .item-meta {
    display: none;
  }

  /* 默认隐藏元信息 */
  .item-summary {
    color: var(--muted);
    font-size: 13px;
  }

  .item-card:not(.expanded) .item-summary {
    /* 摘要默认截断为三行 */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    overflow: hidden;
  }
}

/* 主题变量定义 */
:root {
  --bg: #f6f7fb;
  --bg-alt: #ffffff;
  --text: #1c2430;
  --muted: #526079;
  --border: #e5e7eb;
  --primary: #2563eb;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0e12;
    --bg-alt: #121520;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #2d3748;
    --primary: #60a5fa;
  }

  .btn,
  .link,
  .icon-btn {
    background: #1e293b;
    color: #e2e8f0;
  }

  .card,
  .item-card {
    background: #121520;
  }
}

/* 统一详情页徽标宽度（覆盖前面的默认样式） */
.item-meta .chip.hot,
.item-meta .chip.time {
  min-width: 72px;
  text-align: center;
}

/* 移动端优化：小屏允许换行，避免一行挤压 */
@media (max-width: 860px) {
  .controls {
    flex-wrap: wrap;
  }

  .controls .right {
    margin-left: 0;
    width: 100%;
    display: flex;
    justify-content: flex-end;
  }

  .controls .stats {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 6px;
  }
}