body {
    background-color: #f5f5f5;
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.container {
    max-width: 900px;
}

h1 {
    color: #333;
    font-weight: 600;
}

.card {
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    border: none;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #eaeaea;
}

.table th {
    font-weight: 600;
    background-color: #f3f3f3;
}

.badge {
    font-size: 14px;
    padding: 6px 10px;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: #007bff;
    animation: spin 1s ease-in-out infinite;
    margin-right: 10px;
}

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

.result-highlight {
    background-color: #d4edda;
    animation: highlight-fade 2s ease-out;
}

.unmatched-row {
    background-color: #fff3cd;
    opacity: 0.8;
}

.unmatched-row:hover {
    background-color: #ffeaa7;
    opacity: 1;
}

@keyframes highlight-fade {
    from { background-color: #d4edda; }
    to { background-color: transparent; }
}