/* ================================================
   VOTA - 高级科技精美暗色 UI 样式
   ================================================ */

/* CSS 变量 - 科技深色主题 */
:root {
  --primary: #00B8D9;
  --primary-rgb: 0, 184, 217;
  --primary-dark: #0090A8;
  --primary-light: #5CE0F5;
  --secondary: #0EA5E9;
  --secondary-rgb: 14, 165, 233;
  --accent: #10B981;
  --accent-rgb: 16, 185, 129;
  --success: #22C55E;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;
  --bg-primary: #0B1120;
  --bg-secondary: #111827;
  --bg-tertiary: #1A2332;
  --bg-card: rgba(17, 24, 39, 0.65);
  --bg-hover: rgba(0, 184, 217, 0.07);
  --border-color: rgba(0, 184, 217, 0.12);
  --border-glow: rgba(0, 184, 217, 0.25);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-shine: inset 0 1px 0 rgba(255,255,255,0.05), inset 0 -1px 0 rgba(255,255,255,0.02);
  --glass-shadow: 0 8px 32px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.05);
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  --text-muted: #64748B;
  --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  --gradient-card: linear-gradient(145deg, rgba(17, 24, 39, 0.7) 0%, rgba(26, 35, 50, 0.6) 100%);
  --shadow-glow: 0 0 40px rgba(var(--primary-rgb), 0.12);
  --shadow-tinted: 0 4px 24px rgba(var(--primary-rgb), 0.08);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --sidebar-width: 260px;
  --topbar-height: 64px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 基础重置 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
input, select, textarea, button { font-family: inherit; }

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 10000;
  padding: 12px 24px;
  background: var(--primary);
  color: #0A0E1A;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 16px;
}

html {
  font-size: 14px; scroll-behavior: smooth;
  background: var(--bg-primary);
}

#particlesCanvas {
  position: fixed; top: 0; left: 0; z-index: 0;
  pointer-events: none;
}

body {
  font-family: 'Geist Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: transparent;
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

/* 动态背景 */
.bg-grid {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background-image:
    linear-gradient(rgba(0, 184, 217, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 184, 217, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none; z-index: 0;
  mask-image: radial-gradient(ellipse at 50% 20%, black 15%, transparent 55%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 20%, black 15%, transparent 55%);
}

.bg-glow {
  position: fixed; top: -50%; left: -50%; width: 200%; height: 200%;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(0, 184, 217, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(14, 165, 233, 0.04) 0%, transparent 50%);
  pointer-events: none; z-index: 0;
  animation: glowMove 30s ease-in-out infinite alternate;
}

@keyframes glowMove { 0% { transform: translate(0, 0); } 100% { transform: translate(-5%, -5%); } }

/* 扫描线叠加层 */
.bg-scanlines {
  position: fixed; inset: 0; z-index: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0, 184, 217, 0.01) 2px, rgba(0, 184, 217, 0.01) 3px
  );
  pointer-events: none;
}
.bg-noise {
  position: fixed; inset: 0; z-index: 0;
  opacity: 0.03;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.mouse-glow {
  position: fixed; top: 0; left: 0; z-index: 0;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,184,217,0.05) 0%, transparent 70%);
  pointer-events: none;
  will-change: transform;
}
@keyframes borderGlow {
  0%, 100% { border-color: rgba(0, 184, 217, 0.12); }
  50% { border-color: rgba(0, 184, 217, 0.3); }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes tabSlideIn {
  from { transform: translateX(-4px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ============================================
   登录页面
   ============================================ */
.login-page {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
  position: relative; z-index: 1;
}

.login-card {
  width: 100%; max-width: 400px;
  background: rgba(17, 24, 39, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(24px) saturate(1.2);
  box-shadow: var(--glass-shadow);
}

.login-header {
  text-align: center; margin-bottom: 32px;
}

.login-header .logo-svg.large {
  width: 72px; height: 72px;
  margin-bottom: 16px;
  filter: drop-shadow(0 8px 32px rgba(var(--primary-rgb), 0.3));
}

.login-header h1 {
  font-size: 2rem; font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.login-header p { color: var(--text-tertiary); }

.login-form .form-group { margin-bottom: 20px; }
.form-hint { display: block; margin-top: 4px; font-size: 0.7rem; color: var(--text-tertiary); }

.login-form label {
  display: block; margin-bottom: 8px;
  color: var(--text-secondary); font-size: 0.875rem;
}

.login-form label i { margin-right: 8px; color: var(--primary); }

.login-form input {
  width: 100%; padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.login-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.login-form input::placeholder { color: var(--text-tertiary); }

.form-error {
  color: var(--error); font-size: 0.875rem; margin-bottom: 16px; min-height: 20px;
}

.btn-primary {
  width: 100%; padding: 14px;
  background: var(--primary);
  border: none; border-radius: var(--radius-md);
  color: var(--bg-primary); font-size: 1rem; font-weight: 600;
  font-family: 'Geist Sans', -apple-system, sans-serif;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.3); }
.btn-primary:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

.login-footer { text-align: center; margin-top: 24px; color: var(--text-tertiary); font-size: 0.75rem; }
.login-footer .version { color: var(--primary); font-family: 'JetBrains Mono', monospace; }

/* ============================================
   侧边栏
   ============================================ */
.sidebar {
  position: fixed; top: 0; left: 0;
  width: var(--sidebar-width); height: 100vh;
  background: rgba(11, 17, 32, 0.75);
  backdrop-filter: blur(24px) saturate(1.2);
  border-right: 1px solid var(--border-color);
  display: flex; flex-direction: column;
  z-index: 100; transition: width var(--transition-normal);
  box-shadow: inset -1px 0 0 rgba(255,255,255,0.03);
}

.sidebar-header { padding: 24px; border-bottom: 1px solid var(--border-color); }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-svg {
  width: 36px; height: 36px;
  filter: drop-shadow(0 4px 20px rgba(var(--primary-rgb), 0.3));
  flex-shrink: 0;
}
.logo-text {
  font-size: 1.5rem; font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}
.logo-subtitle {
  display: block; margin-top: 4px;
  font-size: 0.75rem; color: var(--text-tertiary);
  letter-spacing: 2px; text-transform: uppercase;
}

.sidebar-nav { flex: 1; padding: 16px; overflow-y: auto; }

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px; margin-bottom: 4px;
  color: var(--text-secondary);
  text-decoration: none; border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-item::before {
  content: ''; position: absolute; left: 0; top: 0; height: 100%; width: 3px;
  background: var(--primary);
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; border-radius: var(--radius-md); }
.nav-item.active { background: var(--bg-hover); color: var(--primary); }
.nav-item.active::before { transform: scaleY(1); }
.nav-item i { width: 20px; text-align: center; font-size: 1.1rem; }

.sidebar-footer { padding: 16px; border-top: 1px solid var(--border-color); }
.user-info {
  display: flex; align-items: center; gap: 12px;
  padding: 8px; background: var(--bg-hover);
  border-radius: var(--radius-md);
}
.user-avatar {
  width: 40px; height: 40px;
  background: var(--primary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--bg-primary);
  font-weight: 600;
}
.user-details { flex: 1; display: flex; flex-direction: column; }
.user-name { font-weight: 600; font-size: 0.875rem; }
.user-role { font-size: 0.75rem; color: var(--text-tertiary); }
.logout-btn {
  width: 32px; height: 32px;
  background: transparent; border: none;
  color: var(--text-tertiary); cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.logout-btn:hover { background: rgba(239, 68, 68, 0.1); color: var(--error); }

/* ============================================
   主内容区
   ============================================ */
.app-container { position: relative; z-index: 1; }
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-normal);
}

.topbar {
  position: sticky; top: 0; height: var(--topbar-height);
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: blur(24px) saturate(1.2);
  border-bottom: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; z-index: 50;
  box-shadow: inset 0 -1px 0 rgba(255,255,255,0.03);
}

.topbar-left { display: flex; align-items: center; gap: 16px; }
.menu-toggle {
  display: none; width: 40px; height: 40px;
  background: transparent; border: none;
  color: var(--text-secondary); font-size: 1.25rem;
  cursor: pointer; border-radius: var(--radius-sm);
}
.menu-toggle:hover { background: var(--bg-hover); color: var(--primary); }

.breadcrumb { display: flex; align-items: center; gap: 8px; color: var(--text-tertiary); font-size: 0.875rem; }
.breadcrumb i { font-size: 0.625rem; }
.breadcrumb span:last-child { color: var(--text-primary); }

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

.search-box { position: relative; width: 280px; }
.search-box i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-tertiary); }
.search-box input {
  width: 100%; padding: 8px 12px 8px 36px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-primary); font-size: 0.875rem;
  transition: all var(--transition-fast);
}
.search-box input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1); }
.search-box input::placeholder { color: var(--text-tertiary); }

.icon-btn {
  width: 40px; height: 40px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary); cursor: pointer;
  transition: all var(--transition-fast);
}
.icon-btn:hover { background: var(--bg-hover); border-color: var(--primary); color: var(--primary); }

/* ============================================
   仪表盘
   ============================================ */
.dashboard { padding: 24px; }

.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; margin-bottom: 24px;
}

.stat-card {
  background: rgba(17, 24, 39, 0.55);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 20px;
  display: flex; flex-direction: column; gap: 12px;
  position: relative; overflow: hidden;
  transition: all var(--transition-normal);
  animation: fadeInUp 0.5s ease-out;
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--glass-shine), 0 4px 16px rgba(0,0,0,0.2);
}

.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-primary);
  opacity: 0; transition: opacity var(--transition-fast);
}

.stat-card:hover { transform: translateY(-3px); border-color: var(--border-glow); box-shadow: var(--shadow-glow), 0 0 0 1px rgba(var(--primary-rgb), 0.2); animation: borderGlow 2s ease-in-out infinite; }
.stat-card:hover::before { opacity: 1; }

.btn-primary:active { transform: scale(0.97) translateY(1px); }
.btn-primary:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.btn-secondary:active { transform: scale(0.98); }
.btn-secondary:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.btn-sm:active { transform: scale(0.96); }
.btn-sm:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.btn-icon:active { transform: scale(0.95); }
.icon-btn:active { transform: scale(0.95); }

.notification-btn { position: relative; }
.notification-badge {
  position: absolute; top: -4px; right: -4px;
  background: #ef4444; color: #fff;
  font-size: 0.65rem; font-weight: 700;
  min-width: 16px; height: 16px;
  border-radius: 8px; padding: 0 4px;
  display: flex; align-items: center; justify-content: center;
  line-height: 1;
}
.notification-panel {
  position: fixed; top: 60px; right: 16px;
  width: 360px; max-height: 480px;
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  z-index: 900; display: none; flex-direction: column;
  overflow: hidden;
}
.notification-panel.active { display: flex; }
.notification-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--border-color);
}
.notification-panel-header h3 { font-size: 0.95rem; margin: 0; color: var(--text-primary); }
.notification-panel-actions { display: flex; align-items: center; gap: 8px; }
.notification-close-btn { display: none; font-size: 1rem; padding: 4px 8px; color: var(--text-secondary); }
.notification-close-btn:hover { color: var(--text-primary); }
.notification-panel-body { overflow-y: auto; max-height: 400px; padding: 8px; }
.notification-item {
  display: flex; gap: 10px; padding: 10px 12px;
  border-radius: var(--radius-md); cursor: pointer;
  transition: background 0.15s;
}
.notification-item:hover { background: var(--bg-hover); }
.notification-item.unread { background: rgba(0, 184, 217, 0.06); }
.notification-item.unread::before {
  content: ''; width: 8px; height: 8px;
  background: var(--primary); border-radius: 50%;
  flex-shrink: 0; margin-top: 6px;
}
.notification-item-content { flex: 1; min-width: 0; }
.notification-item-title {
  font-size: 0.85rem; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.notification-item-desc {
  font-size: 0.75rem; color: var(--text-secondary);
  margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.notification-item-time { font-size: 0.7rem; color: var(--text-muted); margin-top: 4px; }
.btn-text {
  background: none; border: none; color: var(--primary);
  font-size: 0.8rem; cursor: pointer; padding: 4px 8px;
}
.btn-text:hover { text-decoration: underline; }
.subscribe-btn {
  background: rgba(0, 184, 217, 0.1); border: 1px solid var(--primary);
  color: var(--primary); font-size: 0.75rem; padding: 4px 10px;
  border-radius: var(--radius-sm); cursor: pointer;
  transition: all 0.15s;
}
.subscribe-btn:hover { background: rgba(0, 184, 217, 0.2); }
.subscribe-btn.subscribed {
  background: var(--primary); color: #fff;
}
.subscribe-btn.subscribed:hover { background: var(--primary-dark); }
.subscriptions-grid { display: flex; flex-direction: column; gap: 8px; }

.nav-item:active { background: rgba(0, 184, 217, 0.12); }

.data-table tbody tr:active { background: rgba(0, 184, 217, 0.1); }

*:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
input:focus-visible, select:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem;
}

.stat-icon.devices { background: linear-gradient(135deg, rgba(0, 184, 217, 0.2), rgba(0, 184, 217, 0.05)); color: var(--primary); }
.stat-icon.firmware { background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), rgba(14, 165, 233, 0.05)); color: var(--secondary); }
.stat-icon.downloads { background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(16, 185, 129, 0.05)); color: var(--accent); }
.stat-icon.users { background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0.05)); color: var(--info); }

.stat-content { display: flex; flex-direction: column; }
.stat-value {
  font-size: 2rem; font-weight: 700; font-family: 'JetBrains Mono', monospace;
  line-height: 1.2; font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, #00B8D9 0%, #10B981 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { color: var(--text-secondary); font-size: 0.875rem; }

.stat-trend {
  display: flex; align-items: center; gap: 4px;
  font-size: 0.75rem; padding: 4px 8px;
  border-radius: var(--radius-sm); width: fit-content;
}
.stat-trend.up { background: rgba(34, 197, 94, 0.1); color: var(--success); }
.stat-trend.down { background: rgba(239, 68, 68, 0.1); color: var(--error); }

/* 图表 */
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }

.chart-card {
  background: rgba(17, 24, 39, 0.55);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); overflow: hidden;
  animation: fadeInUp 0.5s ease-out 0.2s both;
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--glass-shine), 0 4px 16px rgba(0,0,0,0.2);
}

.chart-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border-color);
}
.chart-header h3 { display: flex; align-items: center; gap: 8px; font-size: 1rem; font-weight: 600; }
.chart-header h3 i { color: var(--primary); }
.chart-actions { display: flex; align-items: center; gap: 8px; }

.chart-select {
  padding: 4px 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary); font-size: 0.75rem;
  cursor: pointer;
}
.chart-select:hover { border-color: var(--primary); }

.btn-icon {
  width: 32px; height: 32px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary); cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-icon:hover { background: var(--bg-hover); border-color: var(--primary); color: var(--primary); }

.chart-body { padding: 20px; height: 300px; position: relative; }
.chart-body.tree-container { height: 400px; }

.chart-loading {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: var(--primary); font-size: 1.5rem;
}

/* 数据网格 */
.data-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.data-card {
  background: rgba(17, 24, 39, 0.55);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); overflow: hidden;
  animation: fadeInUp 0.5s ease-out 0.3s both;
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--glass-shine), 0 4px 16px rgba(0,0,0,0.2);
}

.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border-color);
}
.card-header h3 { display: flex; align-items: center; gap: 8px; font-size: 1rem; font-weight: 600; }
.card-header h3 i { color: var(--primary); }

.view-all {
  display: flex; align-items: center; gap: 4px;
  color: var(--primary); text-decoration: none;
  font-size: 0.75rem; transition: all var(--transition-fast);
}
.view-all:hover { color: var(--primary-light); }

/* 设备列表 */
.device-list { padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.device-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px; background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast); cursor: pointer;
}
.device-item:hover { background: var(--bg-hover); }

.device-icon { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; }
.device-icon img { width: 32px; height: 32px; object-fit: contain; }

.device-info { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.device-name { font-weight: 600; font-size: 0.875rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.device-model { font-size: 0.75rem; color: var(--text-tertiary); font-family: 'JetBrains Mono', monospace; }

.device-stats { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.fw-count, .capture-count { font-size: 0.7rem; color: var(--text-secondary); }
.capture-count { color: var(--primary); }

.device-badge {
  padding: 2px 8px; border-radius: var(--radius-sm);
  font-size: 0.65rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.device-badge.hot { background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(249, 115, 22, 0.2)); color: #F97316; }
.device-badge.new { background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(20, 184, 166, 0.2)); color: #14B8A6; }

/* 活动列表 */
.activity-list { padding: 16px; display: flex; flex-direction: column; }
.activity-item { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border-color); }
.activity-item:last-child { border-bottom: none; }

.activity-icon {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; flex-shrink: 0;
}
.activity-icon.success { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.activity-icon.info { background: rgba(59, 130, 246, 0.15); color: var(--info); }
.activity-icon.warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.activity-icon.error { background: rgba(239, 68, 68, 0.15); color: var(--error); }

.activity-content { flex: 1; min-width: 0; }
.activity-content p { font-size: 0.875rem; color: var(--text-secondary); margin-bottom: 2px; }
.activity-content .highlight { color: var(--primary); font-family: 'JetBrains Mono', monospace; }
.activity-time { font-size: 0.7rem; color: var(--text-tertiary); }

/* ============================================
   页面区块通用样式
   ============================================ */
.section-content { display: none; animation: staggerIn 0.3s cubic-bezier(0.16, 1, 0.3, 1); }

.page-header { margin-bottom: 24px; }
.page-header h2 { display: flex; align-items: center; gap: 12px; font-size: 1.5rem; margin-bottom: 8px; }
.page-header h2 i { color: var(--primary); }
.page-header p { color: var(--text-tertiary); }

/* 过滤栏 */
.filter-bar { display: flex; gap: 12px; margin-bottom: 16px; }
.filter-input {
  flex: 1; max-width: 300px;
  padding: 10px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'Geist Sans', -apple-system, sans-serif;
  font-size: 0.875rem;
}
.filter-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1); }
.form-input {
  width: 100%; padding: 10px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'Geist Sans', -apple-system, sans-serif;
  font-size: 0.875rem;
}
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1); }

.btn-secondary {
  padding: 10px 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary); cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  transition: all var(--transition-fast);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

.action-bar { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.action-bar .btn-primary { width: auto; }

.small-input {
  width: 60px; padding: 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary); text-align: center;
}

/* 数据表格 */
.data-table {
  width: 100%; border-collapse: collapse;
  background: var(--gradient-card);
  border-radius: var(--radius-lg); overflow: hidden;
}

.data-table th, .data-table td {
  padding: 12px 16px; text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  background: var(--bg-tertiary);
  color: var(--text-secondary); font-weight: 600; font-size: 0.75rem;
  text-transform: uppercase; letter-spacing: 0.5px;
  position: sticky; top: 0; z-index: 2;
}

.data-table td { font-size: 0.875rem; transition: background var(--transition-fast); }
.data-table tbody tr {
  transition: all var(--transition-fast);
}
.data-table tbody tr:hover {
  background: var(--bg-hover);
}

.table-container {
  position: relative;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(17, 24, 39, 0.55);
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--glass-shine), 0 4px 16px rgba(0,0,0,0.2);
}
.table-container .data-table {
  border-radius: 0;
  margin: 0;
}
.table-scroll {
  overflow-x: auto;
  max-height: 540px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

/* 平板及以下：表格容器全宽滚动 */
@media (max-width: 1024px) {
  .archive-table-container,
  .logs-table-container,
  .users-table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .data-table { min-width: 700px; }
  .filter-bar { flex-wrap: wrap; }
  .filter-input { max-width: none; flex: 1 1 140px; }
}

.loading-cell, .empty-cell, .error-cell {
  text-align: center; padding: 40px !important;
  color: var(--text-tertiary);
}

.error-cell { color: var(--error); }

/* 标签 */
.pd-badge {
  display: inline-block; padding: 2px 8px;
  background: rgba(0, 184, 217, 0.1);
  border-radius: var(--radius-sm);
  color: var(--primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
}

.badge-success { color: var(--success); }
.badge-error { color: var(--error); }
.badge-admin {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), rgba(14, 165, 233, 0.1));
  color: var(--secondary);
  padding: 2px 8px; border-radius: var(--radius-sm);
  font-size: 0.75rem;
}

/* 按钮尺寸 */
.btn-sm {
  padding: 6px 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary); cursor: pointer;
  font-size: 0.75rem;
  transition: all var(--transition-fast);
}
.btn-sm:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm.danger:hover { border-color: var(--error); color: var(--error); }

/* ============================================
   OTA 抓包
   ============================================ */
.ota-form-card {
  background: rgba(17, 24, 39, 0.55);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 24px;
  margin-bottom: 24px;
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--glass-shine), 0 4px 16px rgba(0,0,0,0.2);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { color: var(--text-secondary); font-size: 0.875rem; }
.form-group input, .form-group select {
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1); }

.checkbox-group { flex-direction: row; align-items: center; }
.checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.checkbox-label input { width: 18px; height: 18px; }

.form-actions { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 8px; }
.form-actions .btn-primary { width: auto; }

/* Combobox 搜索下拉 */
.combobox-wrapper { position: relative; }
.combobox-wrapper input { width: 100%; }
.combobox-dropdown {
  display: none;
  position: absolute; top: 100%; left: 0; right: 0; z-index: 100;
  max-height: 320px; overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.combobox-dropdown.show { display: block; }

.combobox-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.combobox-item:last-child { border-bottom: none; }
.combobox-item:hover, .combobox-item.active {
  background: rgba(0, 184, 217, 0.08);
}
.combobox-item .pd-code {
  font-family: 'JetBrains Mono', monospace;
  color: var(--primary); font-size: 0.85rem;
  min-width: 80px;
}
.combobox-item .device-name {
  color: var(--text-secondary); font-size: 0.85rem;
}
.combobox-item .device-cpu {
  color: var(--text-tertiary); font-size: 0.75rem;
  margin-left: auto;
}
.combobox-empty {
  padding: 16px; text-align: center;
  color: var(--text-tertiary); font-size: 0.85rem;
}
.combobox-loading {
  padding: 16px; text-align: center;
  color: var(--primary); font-size: 0.85rem;
}

/* 版本下拉分组 */
.combobox-group-title {
  padding: 8px 14px;
  font-size: 0.7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--text-tertiary);
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--border-color);
}
.combobox-item .version-badge {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--primary);
  background: rgba(0, 184, 217, 0.1);
  padding: 2px 8px; border-radius: var(--radius-sm);
}
.combobox-item .ver-latest {
  margin-left: 8px;
  font-size: 0.7rem;
  color: var(--text-tertiary);
}

/* 版本号原始值灰度提示 */
.combobox-item .ver-raw {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  margin-left: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ota-result-card {
  background: rgba(17, 24, 39, 0.55);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); overflow: hidden;
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--glass-shine), 0 4px 16px rgba(0,0,0,0.2);
}

.result-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border-color);
}
.result-header h3 { display: flex; align-items: center; gap: 8px; }
.result-header h3 i { color: var(--success); }

.result-status {
  padding: 4px 12px; border-radius: var(--radius-sm);
  font-size: 0.75rem; font-weight: 600;
}
.result-status.success { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.result-status.warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.result-status.error { background: rgba(239, 68, 68, 0.15); color: var(--error); }

.result-body { padding: 20px; }

.ota-result-info { margin-bottom: 20px; }
.info-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border-color); }
.info-row .label { color: var(--text-tertiary); }
.info-row .value { color: var(--text-primary); font-weight: 500; }

.ota-result-versions { display: grid; gap: 12px; }

.version-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md); padding: 16px;
}
.version-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.version-header .method {
  color: var(--primary);
  font-weight: 600;
}
.version-header .server { color: var(--text-tertiary); font-size: 0.75rem; }

.version-body { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.version-info { display: flex; flex-direction: column; gap: 4px; }
.ver-label { font-size: 0.75rem; color: var(--text-tertiary); }
.ver-value { font-family: 'JetBrains Mono', monospace; color: var(--text-primary); }

.version-actions { display: flex; gap: 8px; }

.btn-download {
  padding: 8px 16px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  color: var(--bg-primary); text-decoration: none;
  display: flex; align-items: center; gap: 6px;
  font-size: 0.875rem; font-weight: 500;
  transition: all var(--transition-fast);
}
.btn-download:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3); }
.btn-download:active { transform: scale(0.98); }

.btn-copy {
  padding: 8px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary); cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-copy:hover { border-color: var(--primary); color: var(--primary); }

.btn-resolve {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  color: var(--primary); cursor: pointer;
  display: flex; align-items: center; gap: 6px;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}
.btn-resolve:hover { background: rgba(var(--primary-rgb), 0.1); }

.btn-resolve-sm {
  padding: 5px 10px;
  background: transparent;
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  color: var(--primary); cursor: pointer;
  font-size: 0.75rem;
  transition: all var(--transition-fast);
}
.btn-resolve-sm:hover { background: rgba(var(--primary-rgb), 0.1); }
.btn-resolve-sm:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-edit-archive, .btn-edit-flash {
  color: var(--text-secondary);
}
.btn-edit-archive:hover, .btn-edit-flash:hover {
  color: var(--primary);
  background: rgba(var(--primary-rgb), 0.08);
}

.credit-cost {
  font-size: 0.75rem;
  color: var(--warning);
  opacity: 0.8;
}

.ota-result-empty { text-align: center; padding: 40px; color: var(--text-tertiary); }
.ota-result-empty i { font-size: 3rem; margin-bottom: 16px; opacity: 0.5; }
.ota-result-empty .sub-text { font-size: 0.875rem; margin-top: 8px; }

/* ============================================
   设备卡片网格
   ============================================ */
.devices-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.device-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md); padding: 16px;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}
.device-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.03); }
.device-card:active { transform: scale(0.98) translateY(0); }

.device-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.device-card-header .pd-code { font-family: 'JetBrains Mono', monospace; color: var(--primary); font-weight: 600; }
.device-card-header .v-code { font-size: 0.75rem; color: var(--text-tertiary); }

.device-card-body { display: flex; flex-direction: column; gap: 4px; }
.device-card-body .device-name { font-weight: 500; }
.device-card-body .device-cpu { font-size: 0.75rem; color: var(--text-tertiary); }

/* ============================================
   激活码
   ============================================ */
.codes-stats {
  display: flex; gap: 24px; margin-bottom: 20px;
  padding: 16px 20px;
  background: rgba(17, 24, 39, 0.55);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--glass-shine);
}

.stat-item { display: flex; flex-direction: column; gap: 4px; text-align: center; }
.stat-item .stat-num { font-size: 1.5rem; font-weight: 700; font-family: 'JetBrains Mono', monospace; color: var(--primary); }
.stat-item .stat-desc { font-size: 0.75rem; color: var(--text-tertiary); }

.codes-list { display: grid; gap: 8px; }

.code-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  background: rgba(17, 24, 39, 0.55);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}
.code-item.used { opacity: 0.7; }

.code-value { display: flex; align-items: center; gap: 8px; flex: 1; }
.code-value code {
  font-family: 'JetBrains Mono', monospace;
  color: var(--primary); letter-spacing: 1px;
}

.code-meta { flex: 2; }
.used-info { font-size: 0.75rem; color: var(--text-tertiary); }
.available-info { font-size: 0.75rem; color: var(--success); }

.code-actions { display: flex; gap: 8px; }

/* ============================================
   模态框
   ============================================ */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; opacity: 0; visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
.modal-overlay.active { opacity: 1; visibility: visible; }

.modal {
  width: 90%; max-width: 500px;
  background: rgba(17, 24, 39, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transform: scale(0.96) translateY(8px);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5), var(--glass-shine);
  backdrop-filter: blur(24px) saturate(1.2);
}
.modal-overlay.active .modal { transform: scale(1) translateY(0); }

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border-color);
}
.modal-header h3 { font-size: 1.125rem; }
.modal-close {
  width: 32px; height: 32px;
  background: transparent; border: none;
  color: var(--text-tertiary); cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.modal-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.modal-close:active { transform: scale(0.95); }
.modal-close:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.modal-body { padding: 20px; max-height: 60vh; overflow-y: auto; }
.modal-footer { padding: 16px 20px; border-top: 1px solid var(--border-color); display: flex; justify-content: flex-end; gap: 12px; }

.modal-loading { text-align: center; padding: 40px; color: var(--primary); }

/* 设备详情模态框 */
.device-detail { }
.detail-section { margin-bottom: 20px; }
.detail-section h4 { color: var(--primary); margin-bottom: 12px; font-size: 0.875rem; }
.detail-section p { margin-bottom: 8px; }

.version-list, .archive-list { display: flex; flex-direction: column; gap: 8px; }
.version-item, .archive-item {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}
.version-item .ver, .archive-item .ver { font-family: 'JetBrains Mono', monospace; }
.version-item .tag { font-size: 0.7rem; padding: 2px 6px; background: rgba(0, 184, 217, 0.1); border-radius: 4px; color: var(--primary); }
.version-item.archived .tag { background: rgba(14, 165, 233, 0.1); color: var(--secondary); }

.archive-item .size { color: var(--text-tertiary); font-size: 0.875rem; }
.archive-item .time { color: var(--text-tertiary); font-size: 0.75rem; margin-left: auto; }

/* ============================================
   Toast 提示
   ============================================ */
.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 8px; }

.toast {
  padding: 12px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex; align-items: center; gap: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.03);
  animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(12px);
}

.toast.success { border-color: var(--success); }
.toast.success i { color: var(--success); }
.toast.error { border-color: var(--error); }
.toast.error i { color: var(--error); }
.toast.info { border-color: var(--info); }
.toast.info i { color: var(--info); }

.toast.fade-out { animation: fadeOut 0.3s ease forwards; }

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

/* ============================================
   通用
   ============================================ */
.loading-placeholder {
  text-align: center; padding: 40px;
  color: var(--text-tertiary);
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    rgba(0, 184, 217, 0.06) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

.skeleton-text {
  height: 14px;
  margin-bottom: 10px;
  border-radius: 4px;
}

.skeleton-text.w-60 { width: 60%; }
.skeleton-text.w-80 { width: 80%; }
.skeleton-text.w-40 { width: 40%; }

.skeleton-card {
  height: 80px;
  border-radius: var(--radius-md);
  margin-bottom: 8px;
}

.skeleton-row {
  display: flex;
  gap: 16px;
  padding: 12px 16px;
  align-items: center;
}

.skeleton-row .skeleton-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
}

.skeleton-row .skeleton-lines {
  flex: 1;
}

.skeleton-cell {
  height: 16px;
  border-radius: 4px;
}

.skeleton-table-row {
  display: grid;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  align-items: center;
}

.skeleton-table-row.cols-7 { grid-template-columns: repeat(7, 1fr); }
.skeleton-table-row.cols-8 { grid-template-columns: repeat(8, 1fr); }
.skeleton-table-row.cols-6 { grid-template-columns: repeat(6, 1fr); }
.skeleton-table-row.cols-5 { grid-template-columns: repeat(5, 1fr); }
.skeleton-table-row.cols-9 { grid-template-columns: repeat(9, 1fr); }

.skeleton-stat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
}

.skeleton-stat .skeleton-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
}

.skeleton-stat .skeleton-value {
  height: 28px;
  width: 60%;
  border-radius: 4px;
}

.skeleton-stat .skeleton-label {
  height: 14px;
  width: 40%;
  border-radius: 4px;
}

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

.text-center { text-align: center; }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-tertiary); }
.text-primary-color { color: var(--primary); }
.text-secondary-color { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }

.flex-center { display: flex; gap: 12px; justify-content: center; align-items: center; }
.flex-row-center { display: flex; gap: 12px; justify-content: center; }

.mt-sm { margin-top: 12px; }
.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 24px; }
.mt-xl { margin-top: 32px; }
.mb-sm { margin-bottom: 8px; }

.min-w-sm { min-width: 100px; }
.min-w-md { min-width: 120px; }

.url-display {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  word-break: break-all;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--primary);
  margin: 12px 0;
}

.confirm-body {
  text-align: center;
  line-height: 1.8;
}

.confirm-hint {
  margin-top: 12px;
  font-size: 14px;
  color: var(--text-tertiary);
}

.confirm-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  justify-content: center;
}
.confirm-actions .btn-primary {
  width: auto;
}

.sha-cell {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.banned-badge {
  font-size: 0.7rem;
  margin-left: 4px;
}

.credits-value {
  color: var(--primary);
}

.credits-value.banned {
  color: var(--error);
}

.filter-bar-wrap {
  flex-wrap: wrap;
  gap: 8px;
}

.filter-narrow { max-width: 140px; }
.filter-narrow-sm { max-width: 120px; }
.filter-narrow-md { max-width: 150px; }

input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(0.7);
  cursor: pointer;
}

.archivist-add-btn {
  width: auto;
  margin-left: auto;
}

.pagination-margin {
  margin-top: 16px;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes staggerIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.stat-card:nth-child(1) { animation-delay: 0s; }
.stat-card:nth-child(2) { animation-delay: 0.05s; }
.stat-card:nth-child(3) { animation-delay: 0.1s; }
.stat-card:nth-child(4) { animation-delay: 0.15s; }

.device-card {
  animation: staggerIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.code-item {
  animation: staggerIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.nav-item {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-item i {
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-item:hover i {
  transform: scale(1.15);
}

.btn-resolve, .btn-resolve-sm {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-resolve:hover, .btn-resolve-sm:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.2);
}

.tab-btn {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast {
  animation: toastSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes toastSlideIn {
  from { transform: translateX(100%) scale(0.95); opacity: 0; }
  to { transform: translateX(0) scale(1); opacity: 1; }
}

.pd-badge {
  transition: background 0.2s, color 0.2s;
}

.data-table tbody tr:hover .pd-badge {
  background: rgba(0, 184, 217, 0.18);
}

.stat-card { box-shadow: var(--shadow-tinted); }
.chart-card { box-shadow: var(--shadow-tinted); }
.data-card { box-shadow: var(--shadow-tinted); }
.ota-form-card { box-shadow: var(--shadow-tinted); }
.table-container { box-shadow: var(--shadow-tinted); }

/* 滚动条 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* 选中文本 */
::selection { background: rgba(var(--primary-rgb), 0.3); color: var(--text-primary); }

/* ============================================
   Tab 切换组件
   ============================================ */
.tabs {
  display: flex; gap: 2px;
  margin-bottom: 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 4px;
  width: fit-content;
  border: 1px solid var(--border-color);
}
.tab-btn {
  padding: 10px 24px;
  background: transparent;
  border: none; border-radius: var(--radius-sm);
  color: var(--text-secondary); cursor: pointer;
  font-size: 0.875rem; font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  background: var(--gradient-primary);
  color: #0A0E1A; font-weight: 600;
  box-shadow: 0 2px 12px rgba(var(--primary-rgb), 0.25);
}
.tab-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 6px;
  background: rgba(255,255,255,0.2);
  border-radius: 10px; font-size: 0.7rem; font-weight: 700;
  margin-left: 6px;
}
.tab-btn:not(.active) .tab-badge {
  background: rgba(0, 184, 217, 0.1);
  color: var(--primary);
}

/* ============================================
   页码组件
   ============================================ */
.pagination {
  display: flex; align-items: center; justify-content: center;
  gap: 4px; padding: 16px 0;
}
.page-btn {
  min-width: 36px; height: 36px;
  padding: 0 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary); cursor: pointer;
  font-size: 0.8rem; font-family: 'JetBrains Mono', monospace;
  transition: all var(--transition-fast);
  display: flex; align-items: center; justify-content: center;
}
.page-btn:hover:not(:disabled):not(.active) {
  border-color: var(--primary); color: var(--primary);
  background: var(--bg-hover);
}
.page-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: #0A0E1A; font-weight: 700;
  box-shadow: 0 0 12px rgba(var(--primary-rgb), 0.2);
}
.page-btn:disabled {
  opacity: 0.3; cursor: not-allowed;
}

.page-ellipsis {
  cursor: default;
  opacity: 0.5;
}
.page-info {
  font-size: 0.8rem; color: var(--text-tertiary);
  padding: 0 12px;
  text-align: center;
  min-width: 120px;
}
.page-info strong { color: var(--text-primary); }

/* ============================================
   增强效果
   ============================================ */
.status-dot {
  display: inline-block; width: 6px; height: 6px;
  border-radius: 50%; margin-right: 6px;
}
.status-dot.success { background: var(--success); animation: pulse-dot 2s infinite; }
.status-dot.error { background: var(--error); }
.status-dot.warning { background: var(--warning); animation: pulse-dot 2s infinite 1s; }

.empty-state { text-align: center; padding: 60px 40px; color: var(--text-tertiary); }
.empty-state i { font-size: 2.5rem; margin-bottom: 16px; opacity: 0.25; display: block; color: var(--primary); }
.empty-state p { font-size: 0.95rem; margin-bottom: 4px; color: var(--text-secondary); }
.empty-state .sub { font-size: 0.8rem; opacity: 0.6; }

/* 卡片 hover 光泽扫过 */
.stat-card::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.03) 45%, transparent 50%);
  background-size: 200% 100%;
  pointer-events: none;
  opacity: 0; transition: opacity 0.3s;
}
.stat-card:hover::after {
  opacity: 1;
  animation: shimmer 1.5s ease-in-out;
}

/* ============================================
   搜索框增强
   ============================================ */
.filter-input::placeholder { color: var(--text-tertiary); font-style: italic; }

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1280px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .charts-grid, .data-grid { grid-template-columns: 1fr; }
}

@media (max-width: 1024px) {
  .sidebar { width: 72px; }
  .sidebar .logo-text, .sidebar .logo-subtitle, .sidebar .nav-item span, .sidebar .user-details { display: none; }
  .sidebar .nav-item { justify-content: center; }
  .sidebar .user-info { justify-content: center; }
  .main-content { margin-left: 72px; }
  .menu-toggle { display: flex; align-items: center; justify-content: center; }
  .sidebar.open { width: var(--sidebar-width); }
  .sidebar.open .logo-text, .sidebar.open .logo-subtitle,
  .sidebar.open .nav-item span, .sidebar.open .user-details { display: block; }
  .sidebar.open .nav-item { justify-content: flex-start; }
  .sidebar.open .user-info { justify-content: flex-start; }
}

.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 200;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar.open ~ .sidebar-overlay { display: block; }
  .sidebar .logo-text, .sidebar .logo-subtitle, .sidebar .nav-item span, .sidebar .user-details { display: block; }
  .sidebar .nav-item { justify-content: flex-start; }
  .sidebar .user-info { justify-content: flex-start; }
  .main-content { margin-left: 0; }
  .menu-toggle { display: flex; align-items: center; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .search-box { display: none; }
  .mobile-search-toggle { display: flex; }
  .mobile-search-bar {
    display: flex; padding: 8px 12px; gap: 8px;
    background: var(--bg-card); border-bottom: 1px solid var(--border-color);
  }
  .mobile-search-bar .search-input { flex: 1; }
  .notification-panel {
    position: fixed; top: 0; right: 0; left: 0;
    width: 100%; max-height: 100vh;
    border-radius: 0; box-shadow: none;
  }
  .notification-close-btn { display: flex; }
  .dashboard { padding: 12px; }
  .filter-bar { flex-direction: column; gap: 8px; }
  .filter-input { max-width: none; width: 100%; padding: 12px 16px; }
  .action-bar { flex-wrap: wrap; }
  .topbar { padding: 0 12px; }
  .modal {
    width: 100%; max-width: none;
    max-height: 100vh;
    border-radius: 0;
    margin: 0;
  }
  .modal-overlay { align-items: flex-end; }
  .modal-overlay.active .modal { transform: scale(1) translateY(0); }
  .modal-body { max-height: 60vh; }
  .toast-container { bottom: 12px; right: 12px; left: 12px; }
  .toast { font-size: 0.85rem; }
  .page-btn { min-width: 32px; height: 32px; font-size: 0.75rem; }
  .page-info { font-size: 0.7rem; min-width: 80px; }
  .stat-value { font-size: 1.5rem; }
  .stat-card { padding: 14px; }
  .chart-body { height: 220px; padding: 12px; }
  .chart-body.tree-container { height: 280px; }
  .chart-header { padding: 12px 14px; }
  .chart-header h3 { font-size: 0.875rem; }
  .card-header { padding: 12px 14px; }
  .ota-form-card { padding: 16px; }
  .version-body { grid-template-columns: 1fr; }
  .codes-stats { flex-wrap: wrap; gap: 12px; padding: 12px; }
  .stat-item { flex: 1 1 40%; }
  .filter-bar-wrap { flex-direction: column; gap: 8px; }
  .filter-narrow, .filter-narrow-sm, .filter-narrow-md { max-width: none; }
  .data-table th, .data-table td { padding: 10px 12px; font-size: 0.8rem; }
  .combobox-item { padding: 10px 12px; }
  .devices-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
  .device-card { padding: 12px; }
  .login-card { padding: 24px; }
  .breadcrumb { display: none; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card { flex-direction: row; align-items: center; }
  .stat-icon { width: 40px; height: 40px; font-size: 1rem; }
  .stat-value { font-size: 1.25rem; }
  .stat-content { flex: 1; }
  .stat-trend { margin-left: auto; }
  .devices-grid { grid-template-columns: 1fr 1fr; }
  .login-card { padding: 20px; }
  .login-header .logo-svg.large { width: 56px; height: 56px; }
  .login-header h1 { font-size: 1.5rem; }
  .topbar { height: 52px; }
  .topbar-right { gap: 6px; }
  .icon-btn { width: 36px; height: 36px; }
  .page-header h2 { font-size: 1.2rem; }
  .tab-btn { padding: 8px 14px; font-size: 0.8rem; }
  .tabs { width: 100%; }
  .btn-primary { padding: 12px; font-size: 0.9rem; }
  .btn-secondary { padding: 8px 14px; font-size: 0.85rem; }
  .version-actions { flex-direction: column; }
  .version-actions .btn-resolve, .version-actions .btn-download, .version-actions .btn-copy { width: 100%; justify-content: center; }
}