.flashstore-sidebar {
    background: #fff;
    border-right: 1px solid #ccc;
    width: 260px;
    padding: 20px;
    box-shadow: 2px 0 12px rgba(0,0,0,0.1);
}
.flashstore-sidebar ul {
    list-style: none;
    padding: 0;
}
.flashstore-sidebar li {
    margin: 10px 0;
}
.flashstore-sidebar a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
}
.flashstore-sidebar a:hover {
    color: #0073aa;
}