/* ========== 开销管理 · 现代紫色主题 ========== */
.expense-page { max-width: none; width: 100%; margin: 0; animation: fadeIn 0.45s ease; }
.expense-overview { 
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); 
    gap: var(--spacing-md); margin-bottom: var(--spacing-lg); 
}
.expense-overview-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px) saturate(150%);
    border-radius: var(--radius-lg); padding: var(--spacing-lg);
    text-align: center; border: 1.5px solid rgba(226, 232, 240, 0.7);
    box-shadow: var(--shadow-card); position: relative; overflow: hidden;
}
.expense-overview-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
}
.expense-overview-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.expense-overview-card .overview-label { font-size: 12px; color: var(--color-text-light); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.4px; font-weight: 500; }
.expense-overview-card .overview-value { font-size: 23px; font-weight: 700; line-height: 1.2; }
.expense-overview-card.total .overview-value { color: #EC4899; }
.expense-overview-card.total::before { background: linear-gradient(90deg, #EC4899, #F472B6); }
.expense-overview-card.month .overview-value { color: #D97706; }
.expense-overview-card.month::before { background: linear-gradient(90deg, #F59E0B, #D97706); }
.expense-overview-card.filtered .overview-value { color: #0891B2; }
.expense-overview-card.filtered::before { background: linear-gradient(90deg, #06B6D4, #0891B2); }
.category-badge {
    display: inline-block; padding: 3px 12px; border-radius: 14px; font-size: 11px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.10), rgba(147, 51, 234, 0.06));
    color: var(--primary-dark);
    border: 1px solid rgba(99, 102, 241, 0.18);
    font-weight: 600;
}
@media (max-width: 768px) { .expense-overview { grid-template-columns: 1fr; } }