/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #007cba;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #005a87;
}

.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
}

.btn-success {
    background-color: #28a745;
}

.btn-success:hover {
    background-color: #218838;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.table th {
    background-color: #f8f9fa;
    font-weight: bold;
}

.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.25rem;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.card {
    background-color: #fff;
    border-radius: 0.375rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.text-center {
    text-align: center;
}

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

.float-right {
    float: right;
}

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

.d-none {
    display: none;
}

.status-pending {
    color: #ffc107;
    font-weight: 500;
}

.status-active {
    color: #28a745;
    font-weight: 500;
}

.status-inactive {
    color: #dc3545;
    font-weight: 500;
}

.status-completed {
    color: #17a2b8;
    font-weight: 500;
}