/* 寮哄埗鏄剧ず閫昏緫 */
    .group:hover > .drop-down { display: block !important;}
    .box.group:hover > .drop-box { display: block !important;}
    
    /* 鐩掑瓙妯″瀷淇 */
    .drop-down, .drop-box { box-sizing: border-box;}