/* ==================== 变量与主题 ==================== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --primary-bg: rgba(99, 102, 241, 0.1);
  --warning: #f59e0b;
  --warning-dark: #d97706;
  --danger: #ef4444;
  --danger-dark: #dc2626;
  --success: #10b981;
  --success-dark: #059669;
  --info: #3b82f6;
  --overdue: #dc2626;
  --repaid: #10b981;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --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: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --card-bg: rgba(255, 255, 255, 0.95);
  --card-bg-solid: #ffffff;
  --bottom-nav-height: 68px;
}

/* ==================== 基础 ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background-attachment: fixed;
  min-height: 100vh;
  color: var(--gray-800);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  padding-bottom: calc(var(--bottom-nav-height) + 24px);
}

/* ==================== 头部 ==================== */
.header {
  padding: 20px 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 16px 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,0.2);
}

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

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

.logo-icon {
  font-size: 2rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: 6px;
  background: var(--gray-100);
  padding: 6px;
  border-radius: var(--radius);
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  background: transparent;
  color: var(--gray-600);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.nav-btn:hover {
  background: white;
  color: var(--gray-800);
}

.nav-btn.active {
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.nav-icon {
  font-size: 1.1rem;
}

/* ==================== 主内容区 ==================== */
.main {
  padding-bottom: 24px;
}

.page {
  display: none;
  animation: fadeInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.page.active {
  display: block;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== 区块卡片 ==================== */
.section-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.2);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-800);
}

/* ==================== 统计卡片 ==================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 18px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s;
  border: 1px solid rgba(255,255,255,0.2);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.3s;
}

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

.stat-card:hover::before {
  opacity: 1;
}

.stat-primary::before { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.stat-warning::before { background: linear-gradient(90deg, var(--warning), #fbbf24); }
.stat-info-card::before { background: linear-gradient(90deg, var(--info), #60a5fa); }
.stat-success::before { background: linear-gradient(90deg, var(--success), #34d399); }
.stat-danger::before { background: linear-gradient(90deg, var(--danger), #f87171); }

.stat-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-primary .stat-icon-wrap { background: linear-gradient(135deg, #e0e7ff, #c7d2fe); }
.stat-warning .stat-icon-wrap { background: linear-gradient(135deg, #fef3c7, #fde68a); }
.stat-info-card .stat-icon-wrap { background: linear-gradient(135deg, #dbeafe, #bfdbfe); }
.stat-success .stat-icon-wrap { background: linear-gradient(135deg, #d1fae5, #a7f3d0); }
.stat-danger .stat-icon-wrap { background: linear-gradient(135deg, #fee2e2, #fecaca); }

.stat-icon {
  font-size: 1.8rem;
}

.stat-info {
  flex: 1;
  min-width: 0;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 6px;
  font-weight: 500;
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.stat-primary .stat-value { color: var(--primary-dark); }
.stat-warning .stat-value { color: var(--warning-dark); }
.stat-info-card .stat-value { color: var(--info); }
.stat-success .stat-value { color: var(--success-dark); }
.stat-danger .stat-value { color: var(--danger-dark); }

/* ==================== 紧急程度分布 ==================== */
.urgency-bar {
  display: flex;
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: var(--gray-100);
  margin-bottom: 16px;
}

.urgency-segment {
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 0;
}

.urgency-segment.overdue { background: linear-gradient(90deg, #991b1b, #dc2626); }
.urgency-segment.urgent { background: linear-gradient(90deg, #dc2626, #ef4444); }
.urgency-segment.warning { background: linear-gradient(90deg, #d97706, #f59e0b); }
.urgency-segment.safe { background: linear-gradient(90deg, #059669, #10b981); }
.urgency-segment.repaid { background: linear-gradient(90deg, #6b7280, #9ca3af); }

.urgency-legend {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--gray-600);
  font-weight: 500;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot.overdue { background: var(--overdue); }
.dot.urgent { background: var(--danger); }
.dot.warning { background: var(--warning); }
.dot.safe { background: var(--success); }
.dot.repaid { background: var(--gray-400); }

/* ==================== 视图切换 ==================== */
.view-switcher {
  display: flex;
  background: var(--gray-100);
  padding: 4px;
  border-radius: var(--radius-sm);
  gap: 2px;
}

.view-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: none;
  background: transparent;
  color: var(--gray-500);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  white-space: nowrap;
}

.view-btn:hover {
  color: var(--gray-700);
}

.view-btn.active {
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.view-btn svg {
  display: block;
}

/* ==================== 最近待还 - 列表视图 ==================== */
.upcoming-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.upcoming-list.view-card {
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.upcoming-item {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border-left: 4px solid;
  transition: all 0.25s;
  cursor: pointer;
}

.upcoming-item:hover {
  background: white;
  box-shadow: var(--shadow-md);
  transform: translateX(2px);
}

.upcoming-list.view-card .upcoming-item {
  flex-direction: column;
  align-items: flex-start;
  border-left: none;
  border-top: none;
  padding: 20px;
  gap: 8px;
  min-height: 240px;
  justify-content: space-between;
  border-radius: var(--radius-lg);
  color: white;
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  position: relative;
  overflow: hidden;
}

.upcoming-list.view-card .upcoming-item::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.upcoming-list.view-card .upcoming-item::after {
  content: '';
  position: absolute;
  bottom: -50px;
  left: -30px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.upcoming-list.view-card .upcoming-item.overdue {
  background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
}

.upcoming-list.view-card .upcoming-item.urgent {
  background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
}

.upcoming-list.view-card .upcoming-item.warning {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.upcoming-list.view-card .upcoming-item.safe {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.upcoming-list.view-card .upcoming-item.repaid {
  background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
}

.upcoming-list.view-card .upcoming-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.upcoming-list.view-card .upcoming-bank {
  color: white;
  font-size: 1.15rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
  letter-spacing: 0.5px;
}

.upcoming-list.view-card .upcoming-card-name {
  color: rgba(255,255,255,0.92);
  margin-top: 6px;
  font-size: 0.95rem;
  position: relative;
  z-index: 1;
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.upcoming-list.view-card .upcoming-days-value {
  color: white !important;
  font-size: 2.8rem;
  font-weight: 800;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 10px rgba(0,0,0,0.4);
  line-height: 1;
}

.upcoming-list.view-card .upcoming-days-label {
  margin-top: 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255,255,255,0.95);
}

.upcoming-item.overdue { border-color: var(--overdue); }
.upcoming-item.urgent { border-color: var(--danger); }
.upcoming-item.warning { border-color: var(--warning); }
.upcoming-item.safe { border-color: var(--success); }

.upcoming-info {
  flex: 1;
  min-width: 0;
}

.upcoming-list.view-card .upcoming-info {
  width: 100%;
}

.upcoming-bank {
  font-weight: 600;
  color: var(--gray-800);
  font-size: 1rem;
}

.upcoming-card-name {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 2px;
}

.upcoming-days {
  text-align: right;
  flex-shrink: 0;
}

.upcoming-list.view-card .upcoming-days {
  width: 100%;
  text-align: left;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.upcoming-days-value {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
}

.upcoming-item.overdue .upcoming-days-value { color: var(--overdue); }
.upcoming-item.urgent .upcoming-days-value { color: var(--danger); }
.upcoming-item.warning .upcoming-days-value { color: var(--warning); }
.upcoming-item.safe .upcoming-days-value { color: var(--success); }

.upcoming-days-label {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-top: 4px;
}

.upcoming-list.view-card .upcoming-days-label {
  margin-top: 0;
}

.upcoming-debt {
  font-size: 0.9rem;
  color: var(--gray-600);
  font-weight: 600;
  margin-top: 8px;
}

.upcoming-list.view-card .upcoming-debt {
  color: rgba(255,255,255,0.95);
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 6px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
  z-index: 1;
  position: relative;
}

.upcoming-repay-btn {
  margin-top: 12px;
  width: 100%;
}

.upcoming-list.view-card .upcoming-repay-btn {
  margin-top: 8px;
  padding: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 1;
  position: relative;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: white;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s;
}

.upcoming-list.view-card .upcoming-repay-btn:hover {
  background: rgba(255,255,255,0.3);
  transform: translateY(-1px);
}

.upcoming-list.view-card .upcoming-repay-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ==================== 卡片管理页头部 ==================== */
.page-header-card {
  margin-bottom: 20px;
}

.page-header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-select {
  padding: 9px 36px 9px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: white;
  font-size: 0.9rem;
  color: var(--gray-700);
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
}

.filter-select:hover {
  border-color: var(--gray-300);
}

.filter-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.btn-add {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
}

/* ==================== 卡片视图 ==================== */
.cards-grid-view {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  padding-bottom: 20px;
}

.credit-card {
  background: linear-gradient(135deg, #1e3a5f 0%, #0d1f3c 100%);
  border-radius: var(--radius-lg);
  padding: 24px;
  color: white;
  position: relative;
  overflow: visible;
  box-shadow: var(--shadow-lg);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  z-index: 1;
  border: 1px solid rgba(255,255,255,0.08);
  margin-bottom: -12px;
  padding-bottom: 36px;
}

.credit-card::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.credit-card:hover {
  box-shadow: 0 20px 40px -8px rgba(0,0,0,0.3);
  z-index: 5;
}

.credit-card::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -40px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.credit-card.overdue {
  background: linear-gradient(135deg, #7f1d1d 0%, #450a0a 100%);
}

.credit-card.urgent {
  background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
}

.credit-card.warning {
  background: linear-gradient(135deg, #d97706 0%, #78350f 100%);
}

.credit-card.safe {
  background: linear-gradient(135deg, #059669 0%, #064e3b 100%);
}

.credit-card.repaid {
  background: linear-gradient(135deg, #4b5563 0%, #1f2937 100%);
  opacity: 0.85;
}

.credit-card.repaid::after {
  content: '已还款';
  position: absolute;
  top: 20px;
  right: -28px;
  background: var(--success);
  color: white;
  padding: 4px 36px;
  font-size: 0.75rem;
  font-weight: 600;
  transform: rotate(45deg);
  z-index: 10;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.card-bank {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.card-name {
  font-size: 0.85rem;
  opacity: 0.75;
  margin-top: 4px;
}

.card-chip {
  width: 42px;
  height: 32px;
  background: linear-gradient(135deg, #ffd700 0%, #b8860b 100%);
  border-radius: 6px;
  position: relative;
}

.card-chip::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70%;
  height: 60%;
  border: 1px solid rgba(0,0,0,0.2);
  border-radius: 3px;
}

.card-number {
  font-family: 'Courier New', monospace;
  font-size: 1.15rem;
  letter-spacing: 2px;
  font-weight: 500;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
  color: rgba(255,255,255,0.95);
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.card-body {
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.card-debt {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.credit-card.repaid .card-debt {
  text-decoration: line-through;
  opacity: 0.6;
}

.card-limit {
  font-size: 0.85rem;
  opacity: 0.65;
  margin-top: 6px;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  position: relative;
  z-index: 1;
}

.card-dates {
  font-size: 0.8rem;
  opacity: 0.75;
}

.card-date-item {
  margin-bottom: 3px;
}

.card-urgency {
  text-align: right;
}

.card-days {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.card-days-label {
  font-size: 0.75rem;
  opacity: 0.75;
  margin-top: 4px;
}

.card-grace-info {
  font-size: 0.75rem;
  opacity: 0.7;
  margin-top: 4px;
}

.card-actions {
  position: absolute;
  top: 10px;
  right: -80px;
  display: flex;
  gap: 8px;
  z-index: 5;
  opacity: 0;
  transition: all 0.25s ease;
}

.credit-card:hover .card-actions {
  opacity: 1;
  right: 10px;
}

.card-action-btn {
  width: 34px;
  height: 34px;
  border: none;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  color: white;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.card-action-btn:hover {
  background: rgba(255,255,255,0.35);
  transform: scale(1.1);
}

.card-menu {
  position: relative;
  z-index: 20;
}

.card-menu-btn {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: white;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all 0.2s;
  flex-shrink: 0;
  padding: 0;
}

.card-menu-btn span {
  width: 5px;
  height: 5px;
  background: white;
  border-radius: 50%;
  display: block;
  flex-shrink: 0;
}

.card-menu-btn:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.3);
}

.card-menu-btn:active {
  transform: scale(0.95);
  background: rgba(255,255,255,0.3);
}

.card-menu-dropdown {
  position: absolute;
  top: 50px;
  right: 0;
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-xl);
  min-width: 140px;
  overflow: hidden;
  display: none;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.2s ease;
  z-index: 200;
}

.card-menu-dropdown.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.menu-item {
  width: 100%;
  padding: 10px 16px;
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--gray-700);
  transition: background 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.menu-item:hover {
  background: var(--gray-50);
}

.menu-item-danger {
  color: var(--danger);
}

.menu-item-danger:hover {
  background: #fef2f2;
}

.card-repay-btn-wrap {
  margin-top: 16px;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-repay-btn {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  color: white;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  border: 1px solid rgba(255,255,255,0.2);
}

.card-repay-btn:hover {
  background: rgba(255,255,255,0.3);
  transform: translateY(-1px);
}

.card-repay-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ==================== 列表视图 ==================== */
.cards-list-view {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.list-card-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid;
  transition: all 0.25s;
  border: 1px solid rgba(255,255,255,0.2);
  border-left-width: 4px;
  box-sizing: border-box;
  min-width: 0;
  overflow: hidden;
  width: 100%;
  flex-direction: row;
}

.list-card-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.list-card-item.overdue { border-left-color: var(--overdue); }
.list-card-item.urgent { border-left-color: var(--danger); }
.list-card-item.warning { border-left-color: var(--warning); }
.list-card-item.safe { border-left-color: var(--success); }
.list-card-item.repaid { border-left-color: var(--gray-400); }

.list-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  background: var(--gray-100);
}

.list-card-item.overdue .list-card-icon { background: #fee2e2; }
.list-card-item.urgent .list-card-icon { background: #fee2e2; }
.list-card-item.warning .list-card-icon { background: #fef3c7; }
.list-card-item.safe .list-card-icon { background: #d1fae5; }
.list-card-item.repaid .list-card-icon { background: var(--gray-100); }

.list-card-info {
  flex: 1;
  min-width: 0;
}

.list-card-bank {
  font-weight: 600;
  color: var(--gray-800);
  font-size: 1rem;
}

.list-card-sub {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 4px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.list-card-days {
  text-align: right;
  flex-shrink: 0;
  min-width: 80px;
}

.list-card-days-value {
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1;
}

.list-card-item.overdue .list-card-days-value { color: var(--overdue); }
.list-card-item.urgent .list-card-days-value { color: var(--danger); }
.list-card-item.warning .list-card-days-value { color: var(--warning); }
.list-card-item.safe .list-card-days-value { color: var(--success); }
.list-card-item.repaid .list-card-days-value { color: var(--gray-400); }

.list-card-days-label {
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-top: 4px;
}

.list-card-debt {
  font-weight: 600;
  color: var(--gray-700);
  margin-top: 4px;
  font-size: 0.9rem;
}

.list-card-item.repaid .list-card-debt {
  text-decoration: line-through;
  color: var(--gray-400);
}

.list-card-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* ==================== 紧凑视图 ==================== */
.cards-compact-view {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.compact-card-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: var(--shadow-sm);
  transition: all 0.25s;
  cursor: pointer;
}

.compact-card-item:hover {
  background: var(--gray-50);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.compact-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.compact-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.compact-dot.overdue { background: var(--overdue); }
.compact-dot.urgent { background: var(--danger); }
.compact-dot.warning { background: var(--warning); }
.compact-dot.safe { background: var(--success); }
.compact-dot.repaid { background: var(--gray-400); }

.compact-card-bank {
  font-weight: 600;
  color: var(--gray-800);
  font-size: 0.95rem;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.compact-card-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.compact-card-date {
  font-size: 0.8rem;
  color: var(--gray-500);
  flex-shrink: 0;
}

.compact-card-debt {
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.9rem;
  flex-shrink: 0;
}

.compact-card-item.repaid .compact-card-debt {
  text-decoration: line-through;
  color: var(--gray-400);
}

.compact-card-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
  padding-top: 6px;
  border-top: 1px solid var(--gray-100);
  margin-top: 2px;
}

/* ==================== 按钮 ==================== */
.btn {
  padding: 11px 22px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-200);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), var(--danger-dark));
  color: white;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), var(--success-dark));
  color: white;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.85rem;
}

.btn-ghost {
  background: transparent;
  color: var(--gray-600);
  border: 1px solid var(--gray-200);
}

.btn-ghost:hover {
  background: var(--gray-50);
  color: var(--gray-800);
}

/* ==================== 弹窗 ==================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--card-bg-solid);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-xl);
  animation: modalIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--gray-300) transparent;
}

.modal-content::-webkit-scrollbar {
  width: 6px;
}

.modal-content::-webkit-scrollbar-track {
  background: transparent;
  margin: 12px 0;
}

.modal-content::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 3px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

.modal-small {
  max-width: 380px;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-100);
}

.modal-header h3 {
  font-size: 1.15rem;
  color: var(--gray-900);
  font-weight: 600;
}

.modal-close {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  font-size: 1.5rem;
  color: var(--gray-400);
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  line-height: 1;
}

.modal-close:hover {
  background: var(--gray-100);
  color: var(--gray-600);
}

.modal-body {
  padding: 24px;
}

.modal-body p {
  color: var(--gray-600);
  line-height: 1.6;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--gray-100);
}

/* ==================== 表单 ==================== */
.card-form {
  padding: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.required {
  color: var(--danger);
  margin-left: 2px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--gray-900);
  transition: all 0.2s;
  background: var(--gray-50);
}

.form-group input:hover {
  border-color: var(--gray-300);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  background: white;
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.form-group select {
  width: 100%;
  padding: 12px 40px 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--gray-900);
  transition: all 0.2s;
  background: var(--gray-50);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
}

.form-group select:hover {
  border-color: var(--gray-300);
}

.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  background-color: white;
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* 宽限期开关 */
.form-grace-days {
  background: var(--gray-50);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.grace-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.grace-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-700);
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--gray-300);
  transition: 0.3s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.switch input:checked + .slider {
  background-color: var(--primary);
}

.switch input:checked + .slider:before {
  transform: translateX(20px);
}

.grace-hint {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 500;
}

/* 还款确认卡 */
.repay-confirm-card {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: white;
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.repay-confirm-bank {
  font-size: 1.1rem;
  font-weight: 600;
}

.repay-confirm-amount {
  font-size: 1.8rem;
  font-weight: 700;
  margin-top: 8px;
}

.repay-tip {
  font-size: 0.9rem;
  color: var(--gray-500);
}

/* ==================== 详情弹窗 ==================== */
.modal-detail {
  max-width: 480px;
}

.detail-card-header {
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  border-radius: var(--radius);
  padding: 24px;
  color: white;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.detail-card-header::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.detail-card-header.overdue { background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%); }
.detail-card-header.urgent { background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%); }
.detail-card-header.warning { background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%); }
.detail-card-header.safe { background: linear-gradient(135deg, #10b981 0%, #059669 100%); }
.detail-card-header.repaid { background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%); }

.detail-bank {
  font-size: 1.4rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

.detail-card-name {
  font-size: 0.95rem;
  opacity: 0.85;
  margin-top: 4px;
  position: relative;
  z-index: 1;
}

.detail-card-number {
  font-family: 'Courier New', monospace;
  font-size: 1.05rem;
  letter-spacing: 2px;
  opacity: 0.9;
  margin-top: 12px;
  position: relative;
  z-index: 1;
}

.detail-days {
  margin-top: 16px;
  font-size: 0.9rem;
  opacity: 0.85;
  position: relative;
  z-index: 1;
}

.detail-days strong {
  font-size: 1.6rem;
  font-weight: 700;
  display: block;
  margin-top: 4px;
  opacity: 1;
}

.detail-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.detail-info-item {
  padding: 14px 16px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
}

.detail-info-label {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.detail-info-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
}

.detail-status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.detail-status-badge.overdue { background: #fee2e2; color: #991b1b; }
.detail-status-badge.urgent { background: #fee2e2; color: #b91c1c; }
.detail-status-badge.warning { background: #fef3c7; color: #92400e; }
.detail-status-badge.safe { background: #d1fae5; color: #065f46; }
.detail-status-badge.repaid { background: #e5e7eb; color: #4b5563; }

/* 交易记录 */
.transaction-section {
  margin-top: 20px;
}

.transaction-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.transaction-section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
}

.transaction-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 300px;
  overflow-y: auto;
}

.transaction-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
}

.transaction-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.transaction-icon.bill {
  background: #fee2e2;
}

.transaction-icon.repayment {
  background: #d1fae5;
}

.transaction-info {
  flex: 1;
  min-width: 0;
}

.transaction-type {
  font-weight: 600;
  color: var(--gray-800);
  font-size: 0.95rem;
}

.transaction-note {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.transaction-date {
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-top: 2px;
}

.transaction-amount {
  font-weight: 700;
  font-size: 1.05rem;
  flex-shrink: 0;
}

.transaction-amount.bill {
  color: var(--danger);
}

.transaction-amount.repayment {
  color: var(--success);
}

.transaction-delete-btn {
  background: transparent;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: all 0.2s;
}

.transaction-delete-btn:hover {
  background: var(--gray-200);
  color: var(--danger);
}

.btn-warning {
  background: linear-gradient(135deg, var(--warning), var(--warning-dark));
  color: white;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.btn-warning:hover {
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
  transform: translateY(-1px);
}

/* ==================== 空状态 ==================== */
.empty-tip {
  text-align: center;
  color: var(--gray-500);
  padding: 48px 24px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  font-size: 0.95rem;
  border: 1px solid rgba(255,255,255,0.2);
}

/* ==================== Toast ==================== */
.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--gray-800);
  color: white;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 2000;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-lg);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  background: var(--success);
}

.toast.error {
  background: var(--danger);
}

/* ==================== 移动端底部导航 ==================== */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid rgba(255,255,255,0.3);
  height: var(--bottom-nav-height);
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: none;
  background: transparent;
  color: var(--gray-400);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 8px 0;
  transition: color 0.2s;
}

.bottom-nav-btn.active {
  color: var(--primary);
}

.bottom-nav-icon {
  font-size: 1.4rem;
}

.bottom-nav-label {
  font-weight: 500;
}

.bottom-nav-fab {
  position: relative;
  top: -20px;
  width: 56px !important;
  height: 56px;
  border-radius: 50% !important;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
  color: white !important;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
  flex: none !important;
  padding: 0 !important;
}

.bottom-nav-fab:hover {
  transform: scale(1.05);
}

.fab-icon {
  font-size: 1.8rem;
  font-weight: 300;
  line-height: 1;
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cards-grid-view {
    grid-template-columns: repeat(2, 1fr);
  }

  .upcoming-list.view-card {
    grid-template-columns: repeat(2, 1fr);
  }
}

.header-bill-btn {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-bill-btn span {
  font-size: 1rem;
}

@media (max-width: 768px) {
  #app {
    padding: 0 14px;
    padding-bottom: calc(var(--bottom-nav-height) + 14px);
  }

  .header {
    padding: 12px 0;
  }

  .header-content {
    padding: 10px 14px;
    border-radius: var(--radius);
  }

  .logo {
    font-size: 0.95rem;
    font-weight: 600;
  }

  .logo-icon {
    font-size: 1.4rem;
  }

  .nav {
    display: none;
  }

  .header-bill-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
    gap: 4px;
  }

  .header-bill-btn span {
    font-size: 0.9rem;
  }

  .bottom-nav {
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 16px;
    height: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom));
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: none;
    border-radius: var(--radius-lg);
    margin: 0 14px;
    bottom: 14px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  }

  .bottom-nav-btn {
    padding: 8px 0;
    font-size: 0.7rem;
    gap: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius);
    margin: 0 4px;
    min-width: 60px;
  }

  .bottom-nav-btn.active {
    background: rgba(255,255,255,0.3);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  }

  .bottom-nav-icon {
    font-size: 1.2rem;
  }

  .bottom-nav-fab {
    display: none;
  }

  .fab-icon {
    font-size: 1.5rem;
  }

  .section-card {
    padding: 18px;
    margin-bottom: 14px;
    border-radius: var(--radius);
  }

  .section-header {
    margin-bottom: 14px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 14px;
  }

  .stat-card {
    padding: 14px;
    gap: 10px;
    border-radius: var(--radius);
  }

  .stat-icon-wrap {
    width: 40px;
    height: 40px;
    border-radius: 10px;
  }

  .stat-icon {
    font-size: 1.3rem;
  }

  .stat-value {
    font-size: 1.2rem;
  }

  .stat-label {
    font-size: 0.75rem;
  }

  .urgency-bar {
    height: 10px;
    margin-bottom: 12px;
  }

  .urgency-legend {
    gap: 12px;
  }

  .legend-item {
    font-size: 0.75rem;
    gap: 6px;
  }

  .dot {
    width: 8px;
    height: 8px;
  }

  .page-header-top {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 14px;
  }

  .filter-bar {
    gap: 8px;
  }

  .filter-select {
    flex: 1;
    min-width: 0;
    padding: 8px 12px;
    font-size: 0.85rem;
  }

  .btn-add {
    width: 100%;
    justify-content: center;
    padding: 10px 18px;
  }

  .view-switcher {
    width: 100%;
    justify-content: space-between;
  }

  .view-switcher .view-btn span {
    display: none;
  }

  .calendar-card-list {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .view-btn {
    padding: 8px 12px;
    flex: 1;
    justify-content: center;
  }

  .cards-grid-view {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .credit-card {
    padding: 18px;
    border-radius: var(--radius);
  }

  .card-number {
    font-size: 1rem;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
  }

  .card-header {
    margin-bottom: 20px;
  }

  .card-bank {
    font-size: 1.1rem;
  }

  .card-chip {
    width: 36px;
    height: 28px;
  }

  .card-body {
    margin-bottom: 18px;
  }

  .card-debt {
    font-size: 1.6rem;
  }

  .card-limit {
    font-size: 0.8rem;
  }

  .card-days {
    font-size: 1.7rem;
  }

  .card-actions {
    opacity: 1;
    top: 10px;
    right: 10px;
  }

  .card-action-btn {
    width: 30px;
    height: 30px;
    font-size: 0.8rem;
  }

  .upcoming-list {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .upcoming-list.view-card {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .upcoming-item {
    padding: 12px 16px;
  }

  .upcoming-list.view-card .upcoming-item {
    padding: 16px;
    aspect-ratio: auto;
    min-height: 140px;
  }

  .upcoming-days-value {
    font-size: 1.3rem;
  }

  .calendar-card-list {
    grid-template-columns: 1fr !important;
    gap: 10px;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
  }

  .calendar-card-item {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  .cards-list-view {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .list-card-item {
    padding: 12px 14px;
    gap: 10px;
    flex-wrap: wrap;
  }

  .list-card-icon {
    width: 38px;
    height: 38px;
    font-size: 1.1rem;
    border-radius: 10px;
  }

  .list-card-info {
    flex: 1;
    min-width: 120px;
  }

  .list-card-bank {
    font-size: 0.95rem;
  }

  .list-card-sub {
    font-size: 0.75rem;
    gap: 8px;
  }

  .list-card-days {
    min-width: 60px;
  }

  .list-card-days-value {
    font-size: 1.1rem;
  }

  .list-card-days-label {
    font-size: 0.7rem;
  }

  .list-card-actions {
    width: 100%;
    justify-content: flex-end;
    padding-top: 8px;
    border-top: 1px solid var(--gray-100);
    margin-top: 4px;
  }

  .cards-compact-view {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .compact-card-item {
    padding: 12px;
    gap: 8px;
  }

  .compact-card-top {
    gap: 6px;
  }

  .compact-card-bank {
    font-size: 0.85rem;
  }

  .compact-card-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .compact-card-date {
    display: none;
  }

  .compact-card-debt {
    font-size: 0.85rem;
  }

  .compact-card-actions {
    justify-content: space-between;
    padding-top: 6px;
    border-top: 1px solid var(--gray-100);
    margin-top: 2px;
  }

  .compact-card-actions .btn {
    flex: 1;
    font-size: 0.75rem;
    padding: 6px 8px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form-group {
    margin-bottom: 16px;
  }

  .form-group label {
    font-size: 0.85rem;
    margin-bottom: 6px;
  }

  .form-group input {
    padding: 10px 14px;
    font-size: 0.95rem;
  }

  .form-group select {
    padding: 10px 36px 10px 14px;
    font-size: 0.95rem;
    background-size: 18px;
    background-position: right 10px center;
  }

  .modal {
    padding: 10px;
    align-items: flex-end;
  }

  .modal-content {
    max-height: calc(100vh - 20px);
    border-radius: var(--radius-lg) var(--radius-lg) var(--radius) var(--radius);
  }

  .modal-small {
    max-width: 100%;
  }

  .card-form,
  .modal-body {
    padding: 18px;
  }

  .modal-header {
    padding: 14px 18px;
  }

  .modal-header h3 {
    font-size: 1.05rem;
  }

  .modal-footer {
    padding: 12px 18px;
    gap: 10px;
  }

  .modal-footer .btn {
    flex: 1;
  }

  .detail-info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .detail-info-item {
    padding: 12px 14px;
  }

  .detail-info-label {
    font-size: 0.75rem;
  }

  .detail-info-value {
    font-size: 0.95rem;
  }

  .calendar-nav {
    gap: 8px;
  }

  .calendar-nav .btn {
    padding: 8px 12px;
  }

  .calendar-title {
    min-width: 90px;
    font-size: 0.9rem;
  }

  .calendar-legend {
    gap: 12px;
    margin-bottom: 12px;
  }

  .calendar-legend .legend-item {
    font-size: 0.75rem;
    gap: 6px;
  }

  .calendar-grid {
    gap: 1px;
    border-radius: var(--radius-sm);
  }

  .calendar-day {
    min-height: 56px;
    padding: 4px 2px;
  }

  .calendar-day-number {
    font-size: 0.75rem;
  }

  .calendar-day.today .calendar-day-number {
    width: 22px;
    height: 22px;
    line-height: 22px;
    font-size: 0.7rem;
  }

  .calendar-events {
    margin-top: 2px;
    gap: 1px;
  }

  .calendar-event {
    font-size: 0.55rem;
    padding: 1px 3px;
  }

  .calendar-day-header {
    font-size: 0.7rem;
    padding: 8px 2px;
  }

  .calendar-card-list {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .calendar-card-item {
    padding: 12px 14px;
    gap: 12px;
  }

  .calendar-card-icon {
    width: 38px;
    height: 38px;
    font-size: 1.2rem;
    border-radius: 10px;
  }

  .calendar-card-bank {
    font-size: 0.9rem;
  }

  .calendar-card-name {
    font-size: 0.75rem;
  }

  .calendar-card-dates {
    flex-direction: column;
    gap: 6px;
  }

  .calendar-date-block {
    min-width: auto;
  }

  .calendar-date-label {
    font-size: 0.65rem;
  }

  .calendar-date-value {
    font-size: 0.9rem;
  }

  .empty-tip {
    padding: 36px 20px;
    font-size: 0.9rem;
  }

  .toast {
    top: auto;
    bottom: calc(var(--bottom-nav-height) + 20px);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 10px 20px;
    font-size: 0.85rem;
    max-width: 90%;
  }

  .toast.show {
    transform: translateX(-50%) translateY(0);
  }

  .transaction-section {
    margin-top: 16px;
  }

  .transaction-item {
    padding: 10px 12px;
    gap: 10px;
  }

  .transaction-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
    border-radius: 8px;
  }

  .transaction-type {
    font-size: 0.9rem;
  }

  .transaction-note {
    font-size: 0.75rem;
  }

  .transaction-date {
    font-size: 0.7rem;
  }

  .transaction-amount {
    font-size: 0.95rem;
  }

  .modal-detail .modal-footer {
    flex-direction: column-reverse;
    align-items: stretch;
    gap: 8px;
  }

  .modal-detail .modal-footer > div {
    display: flex;
    gap: 8px;
  }

  .modal-detail .modal-footer .btn {
    flex: 1;
  }

  .btn-warning span {
    display: inline;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stat-card {
    flex-direction: column;
    text-align: center;
    gap: 8px;
    padding: 12px;
  }

  .stat-info {
    width: 100%;
  }

  .stat-value {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 0.95rem;
  }

  .credit-card {
    padding: 16px;
  }

  .card-header {
    margin-bottom: 16px;
  }

  .card-body {
    margin-bottom: 16px;
  }

  .card-debt {
    font-size: 1.5rem;
  }

  .card-days {
    font-size: 1.5rem;
  }

  .card-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .card-urgency {
    text-align: left;
    width: 100%;
    display: flex;
    align-items: baseline;
    gap: 8px;
  }

  .card-days-label {
    margin-top: 0;
  }

  .upcoming-list.view-card {
    grid-template-columns: 1fr;
  }

  .cards-compact-view {
    grid-template-columns: 1fr 1fr;
  }

  .calendar-day {
    min-height: 48px;
  }

  .calendar-event {
    display: none;
  }

  .calendar-day.has-billing::after,
  .calendar-day.has-repayment::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
  }

  .calendar-day.has-billing::after {
    background: var(--primary);
  }

  .calendar-day.has-repayment::after {
    background: var(--danger);
  }

  .list-card-actions {
    flex-wrap: wrap;
  }

  .list-card-actions .btn {
    flex: 1;
    min-width: 60px;
  }
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ==================== 月历视图 ==================== */
.calendar-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.calendar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
  min-width: 120px;
  text-align: center;
}

.calendar-legend {
  display: flex;
  gap: 20px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.calendar-legend .dot.billing-dot {
  background: var(--primary);
}

.calendar-legend .dot.repayment-dot {
  background: var(--danger);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  background: var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}

.calendar-day-header {
  background: var(--gray-100);
  padding: 10px 8px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-600);
}

.calendar-day-header.weekend {
  color: var(--danger);
}

.calendar-day {
  background: white;
  min-height: 80px;
  padding: 6px;
  position: relative;
  transition: background 0.2s;
}

.calendar-day:hover {
  background: var(--gray-50);
}

.calendar-day.other-month {
  background: var(--gray-50);
  color: var(--gray-400);
}

.calendar-day.today {
  background: rgba(99, 102, 241, 0.08);
}

.calendar-day.today .calendar-day-number {
  background: var(--primary);
  color: white;
  width: 26px;
  height: 26px;
  line-height: 26px;
  text-align: center;
  border-radius: 50%;
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
}

.calendar-day-number {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-700);
}

.calendar-day.other-month .calendar-day-number {
  color: var(--gray-400);
}

.calendar-events {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calendar-event {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
}

.calendar-event.billing {
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary-dark);
}

.calendar-event.repayment {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger-dark);
}

.calendar-event.repayment.urgent {
  background: rgba(239, 68, 68, 0.25);
  color: var(--danger-dark);
}

.calendar-card-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.calendar-card-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: var(--shadow-sm);
}

.calendar-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: white;
}

.calendar-card-info {
  flex: 1;
  min-width: 0;
}

.calendar-card-bank {
  font-weight: 600;
  color: var(--gray-800);
  font-size: 0.95rem;
}

.calendar-card-name {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-top: 2px;
}

.calendar-card-dates {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.calendar-date-block {
  text-align: center;
  min-width: 60px;
}

.calendar-date-label {
  font-size: 0.7rem;
  color: var(--gray-500);
  margin-bottom: 2px;
}

.calendar-date-value {
  font-size: 1rem;
  font-weight: 600;
}

.calendar-date-value.billing {
  color: var(--primary);
}

.calendar-date-value.repayment {
  color: var(--danger);
}