.context-menu {
    position: absolute;
    display: none;
    background: #fff;
    border: 1px solid #ccc;
    min-width: 160px;
    z-index: 9999;
    box-shadow: 2px 2px 6px rgba(0,0,0,0.2);
    font-size: 14px;
}

/* 최상위 메뉴 */
.context-menu > ul {
    list-style: none;
    margin: 0;
    padding: 5px 0;
}

/* 메뉴 항목 */
.context-menu li {
    padding: 5px 12px;
    cursor: pointer;
    white-space: nowrap;
}
.context-menu li:hover {
    background: #f0f0f0;
}

/* 서브메뉴 */
.context-menu .submenu {
    position: absolute;
    left: 100%;
    top: 0;
    display: none;
    margin-left: -1px;
}
.context-menu li:hover > .submenu {
    display: block;
}