* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}
body {
    background: #f5f5f5;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}
.form-group {
    margin-bottom: 15px;
}
label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}
input, textarea, select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}
.btn {
    background: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 10px;
}
.btn-secondary {
    background: #6c757d;
}
.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}
.alert {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
}
.alert.success {
    background: #dff0d8;
    color: #3c763d;
}
.alert.error {
    background: #f2dede;
    color: #a94442;
}
.filter-bar {
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
}
.task-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}
.task-table th, .task-table td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: left;
}
.task-table th {
    background: #f8f8f8;
}
.status {
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 12px;
}
.status.待执行 {
    background: #fff3cd;
    color: #856404;
}
.status.执行中 {
    background: #cce5ff;
    color: #004085;
}
.status.已完成 {
    background: #d4edda;
    color: #155724;
}
.status.已驳回 {
    background: #f8d7da;
    color: #721c24;
}