body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: #f0f2f5;
    font-size: 15px;
    color: #333;
    line-height: 1.6;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.card-header {
    border-bottom: 1px solid #f0f0f0;
    padding: 14px 20px;
    font-size: 15px;
}
.card-body {
    padding: 16px 20px;
}

.table th {
    font-weight: 600;
    font-size: 14px;
    color: #555;
    padding: 12px 16px;
    white-space: nowrap;
}
.table td {
    vertical-align: middle;
    padding: 12px 16px;
    font-size: 15px;
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 1px;
}

.badge {
    font-weight: 500;
    padding: 4px 10px;
    font-size: 13px;
}

.btn-sm {
    font-size: 14px;
    padding: 6px 14px;
}

.modal-content {
    border-radius: 10px;
    border: none;
}

.form-control, .form-select {
    font-size: 15px;
    padding: 8px 12px;
}
.form-control:focus, .form-select:focus {
    border-color: #4f6ef7;
    box-shadow: 0 0 0 0.2rem rgba(79,110,247,0.15);
}

@media (max-width: 767px) {
    .card-body { padding: 12px 14px; }
    .table th, .table td { padding: 8px 10px; font-size: 13px; }
}