:root {
    --primary-color: #3190e8;
    --secondary-color: #ff7f5a;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --bg-light: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #333;
    --text-muted: #6c757d;
}

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: var(--text-color);
}

.main-content {
    padding: 20px 0;
    min-height: calc(100vh - 200px);
}

.footer {
    background-color: #343a40;
    color: #fff;
    padding: 20px 0;
    margin-top: 40px;
}

.stat-card {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.stat-icon {
    font-size: 40px;
    margin-right: 20px;
}

.stat-info h3 {
    font-size: 28px;
    margin: 0;
    font-weight: bold;
}

.stat-info p {
    margin: 0;
    color: var(--text-muted);
}

.stat-primary { border-left: 4px solid var(--primary-color); }
.stat-success { border-left: 4px solid var(--success-color); }
.stat-info { border-left: 4px solid var(--info-color); }
.stat-warning { border-left: 4px solid var(--warning-color); }

.card {
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin-bottom: 20px;
}

.card-header {
    background-color: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 20px;
}

.card-title {
    margin: 0;
    font-size: 16px;
    font-weight: bold;
}

.notice-list, .message-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.notice-item, .message-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

.notice-item:last-child, .message-item:last-child {
    border-bottom: none;
}

.notice-title a, .message-title a {
    color: var(--text-color);
    text-decoration: none;
}

.notice-title a:hover, .message-title a:hover {
    color: var(--primary-color);
}

.notice-info, .message-time {
    color: var(--text-muted);
    font-size: 12px;
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.quick-link {
    text-align: center;
    padding: 15px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s;
}

.quick-link:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.quick-link:hover .ql-icon,
.quick-link:hover .ql-text {
    color: #fff;
}

.ql-icon {
    font-size: 30px;
    display: block;
    margin-bottom: 5px;
}

.ql-text {
    font-size: 13px;
}

.table {
    background: #fff;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #2678c4;
    border-color: #2678c4;
}

.navbar-brand {
    font-weight: bold;
    font-size: 20px;
}