:root {
  --color-bg-primary: #0b1120;
  --color-bg-surface: rgba(15, 23, 42, 0.8);
  --color-bg-surface-strong: rgba(17, 24, 39, 0.95);
  --color-gradient-start: #0f172a;
  --color-gradient-mid: #1e293b;
  --color-gradient-end: #0b1120;

  --color-text-primary: #e2e8f0;
  --color-text-secondary: rgba(226, 232, 240, 0.72);
  --color-text-muted: rgba(226, 232, 240, 0.55);

  --color-accent: #60a5fa;
  --color-accent-strong: #3b82f6;
  --color-accent-soft: rgba(96, 165, 250, 0.16);

  --color-warning: rgba(250, 204, 21, 0.22);
  --color-warning-text: #fef08a;
  --color-success: rgba(34, 197, 94, 0.2);
  --color-success-text: #bbf7d0;
  --color-danger: rgba(248, 113, 113, 0.22);
  --color-danger-text: #fecaca;

  --border-radius-base: 16px;
  --shadow-lg: 0 24px 45px rgba(8, 14, 35, 0.45);
  --shadow-md: 0 12px 28px rgba(8, 14, 35, 0.32);
  --shadow-sm: 0 6px 18px rgba(8, 14, 35, 0.24);

  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(120% 120% at 15% 10%, rgba(59, 130, 246, 0.25), transparent 70%),
              radial-gradient(90% 90% at 85% 25%, rgba(139, 92, 246, 0.18), transparent 70%),
              linear-gradient(120deg, var(--color-gradient-start), var(--color-gradient-mid) 45%, var(--color-gradient-end));
  color: var(--color-text-primary);
  min-height: 100vh;
  font-family: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

header.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 17, 32, 0.88);
  backdrop-filter: blur(18px);
  padding: 20px 7vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  box-shadow: 0 20px 45px rgba(8, 14, 35, 0.45);
}

.app-header .brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.app-header .brand h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}

.app-nav {
  display: inline-flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.18);
  color: var(--color-text-primary);
  font-size: 13px;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-link.active {
  background: rgba(96, 165, 250, 0.28);
  color: var(--color-accent);
}

.nav-link:hover {
  background: rgba(96, 165, 250, 0.22);
}

.hero {
  padding: 44px 7vw 28px;
  display: grid;
  gap: 16px;
}

.hero h2 {
  margin: 0;
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 600;
}

.hero p {
  margin: 0;
  max-width: 640px;
  color: var(--color-text-secondary);
  line-height: 1.64;
}

.content-grid {
  padding: 24px 7vw 72px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.card {
  background: var(--color-bg-surface);
  border-radius: var(--border-radius-base);
  padding: 22px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 160px;
}

.card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.card p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.card .card-actions {
  margin-top: auto;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.32);
  color: #cfe0ff;
  font-size: 13px;
  transition: background 0.2s ease;
}

.pill-btn.secondary {
  background: rgba(148, 163, 184, 0.24);
  color: var(--color-text-primary);
}

.pill-btn:hover {
  background: rgba(96, 165, 250, 0.4);
}

footer.app-footer {
  padding: 24px 7vw 32px;
  background: rgba(11, 17, 32, 0.88);
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
  border-top: 1px solid rgba(148, 163, 184, 0.16);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
}

.status-badge.success {
  background: var(--color-success);
  color: var(--color-success-text);
}

.status-badge.warning {
  background: var(--color-warning);
  color: var(--color-warning-text);
}

.status-badge.danger {
  background: var(--color-danger);
  color: var(--color-danger-text);
}

.table-wrapper {
  background: var(--color-bg-surface);
  border-radius: var(--border-radius-base);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

table.data-table thead {
  background: rgba(22, 34, 57, 0.85);
}

table.data-table th,
table.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
  text-align: left;
}

table.data-table tbody tr:hover {
  background: rgba(59, 130, 246, 0.08);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: rgba(96, 165, 250, 0.18);
  color: #93c5fd;
}

.status-pill.pending {
  background: var(--color-warning);
  color: var(--color-warning-text);
}

.status-pill.in_progress {
  background: rgba(59, 130, 246, 0.22);
  color: #bfdbfe;
}

.status-pill.completed {
  background: var(--color-success);
  color: var(--color-success-text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 12px;
  border: none;
  background: rgba(59, 130, 246, 0.32);
  color: #bfdbfe;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.btn:hover {
  background: rgba(96, 165, 250, 0.4);
}

.btn.secondary {
  background: rgba(148, 163, 184, 0.22);
  color: var(--color-text-primary);
}

.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn.loading {
  position: relative;
  color: transparent;
}

.btn.loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.muted {
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  header.app-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .app-nav {
    width: 100%;
  }
  .hero {
    padding: 32px 6vw;
  }
  .content-grid {
    padding: 20px 6vw 60px;
  }

  /* 移动端筛选器和工具栏优化 */
  .filters,
  .toolbar {
    padding: 12px 4vw !important;
    gap: 8px !important;
  }

  .filters select,
  .filters input,
  .filters button {
    flex: 1 1 auto;
    min-width: 120px;
  }

  /* Toast通知在移动端位置调整 */
  .toast-container {
    top: 12px;
    right: 12px;
    left: 12px;
    max-width: none;
  }

  .toast {
    min-width: auto;
  }
}

/* ======= Loading组件样式 ======= */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(11, 17, 32, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.loading-spinner .spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(96, 165, 250, 0.2);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-spinner .loading-text {
  color: var(--color-text-secondary);
  font-size: 14px;
}

/* ======= Toast通知样式 ======= */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 400px;
}

.toast {
  background: var(--color-bg-surface-strong);
  border-radius: var(--border-radius-base);
  box-shadow: var(--shadow-lg);
  padding: 16px 20px;
  border-left: 4px solid var(--color-accent);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  animation: slideIn 0.3s ease-out;
  min-width: 300px;
}

.toast.success {
  border-left-color: #22c55e;
}

.toast.error {
  border-left-color: #ef4444;
}

.toast.warning {
  border-left-color: #f59e0b;
}

.toast.info {
  border-left-color: var(--color-accent);
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
}

.toast.success .toast-icon {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
}

.toast.error .toast-icon {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

.toast.warning .toast-icon {
  background: rgba(245, 158, 11, 0.2);
  color: #f59e0b;
}

.toast.info .toast-icon {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-text-primary);
}

.toast-message {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.toast-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  padding: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
}

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

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.removing {
  animation: slideOut 0.3s ease-in forwards;
}

@keyframes slideOut {
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

/* ======= Filters筛选器样式 ======= */
.filters {
  display: flex;
  gap: 12px;
  padding: 16px 7vw;
  background: var(--color-bg-surface);
  border-radius: var(--border-radius-base);
  margin: 0 7vw 24px;
  box-shadow: var(--shadow-sm);
}

.filters select,
.filters input {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.24);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s ease;
}

.filters select:focus,
.filters input:focus {
  border-color: var(--color-accent);
}

.filters select:hover,
.filters input:hover {
  border-color: rgba(148, 163, 184, 0.4);
}

/* ======= Metadata Block样式 ======= */
.metadata-block {
  background: rgba(22, 34, 57, 0.5);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  border-left: 3px solid var(--color-accent-soft);
}

.metadata-block code {
  background: rgba(148, 163, 184, 0.12);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 12px;
  color: var(--color-accent);
}

.metadata-block strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* ======= Emotion标签颜色 ======= */
.emotion-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}

.emotion-tag.neutral {
  background: rgba(148, 163, 184, 0.2);
  color: #cbd5e1;
}

.emotion-tag.positive {
  background: var(--color-success);
  color: var(--color-success-text);
}

.emotion-tag.negative {
  background: var(--color-danger);
  color: var(--color-danger-text);
}

.emotion-tag.critical {
  background: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  font-weight: 600;
}

.emotion-tag.urgent {
  background: var(--color-warning);
  color: var(--color-warning-text);
}

/* ======= Summary Card样式增强 ======= */
.summary-card {
  background: var(--color-bg-surface);
  border-radius: var(--border-radius-base);
  padding: 20px;
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.summary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.summary-header h3 {
  margin: 0 0 12px 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.summary-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.summary-meta span {
  padding: 4px 10px;
  background: rgba(148, 163, 184, 0.12);
  border-radius: 6px;
}

/* ======= Markdown内容样式 ======= */
.markdown-content {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  color: var(--color-text-primary);
  margin-top: 1.2em;
  margin-bottom: 0.6em;
  font-weight: 600;
}

.markdown-content h1 { font-size: 1.8em; }
.markdown-content h2 { font-size: 1.5em; }
.markdown-content h3 { font-size: 1.3em; }
.markdown-content h4 { font-size: 1.1em; }

.markdown-content p {
  margin: 0.8em 0;
}

.markdown-content ul,
.markdown-content ol {
  margin: 0.8em 0;
  padding-left: 2em;
}

.markdown-content li {
  margin: 0.4em 0;
}

.markdown-content code {
  background: rgba(148, 163, 184, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 0.9em;
  color: var(--color-accent);
}

.markdown-content pre {
  background: rgba(15, 23, 42, 0.9);
  padding: 14px 18px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1em 0;
}

.markdown-content pre code {
  background: none;
  padding: 0;
  color: var(--color-text-primary);
}

.markdown-content blockquote {
  border-left: 4px solid var(--color-accent-soft);
  padding-left: 16px;
  margin: 1em 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.markdown-content a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.markdown-content a:hover {
  border-bottom-color: var(--color-accent);
}

.markdown-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: 13px;
}

.markdown-content table th,
.markdown-content table td {
  padding: 10px 14px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  text-align: left;
}

.markdown-content table th {
  background: rgba(22, 34, 57, 0.85);
  font-weight: 600;
  color: var(--color-text-primary);
}

.markdown-content table tr:hover {
  background: rgba(59, 130, 246, 0.08);
}

/* ======= 企微监控页和关键字列表样式 ======= */
.keyword-tags,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.keyword-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  background: rgba(96, 165, 250, 0.18);
  color: #93c5fd;
  white-space: nowrap;
}

/* 工具栏通用样式 */
.toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 18px 7vw 0;
}

.toolbar select,
.toolbar button {
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.24);
  background: rgba(15, 23, 42, 0.75);
  color: var(--color-text-primary);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.toolbar select:hover,
.toolbar button:hover {
  background: rgba(22, 34, 57, 0.9);
  border-color: rgba(148, 163, 184, 0.4);
}

.toolbar button:active {
  transform: scale(0.98);
}