.phone-mobile{display:none}.giuseart-nav{position:fixed;right:15px;background:rgb(255 255 255 / .5);border-radius:5px;width:auto;z-index:150;bottom:50px;padding:10px 0;border:1px solid #f2f2f2}.giuseart-nav ul{list-style:none;padding:0;margin:0}.giuseart-nav ul li{list-style:none!important}.giuseart-nav ul>li a{border:none;margin-top:8px;margin-bottom:8px;padding:4px;display:block;border-radius:5px;text-align:center;font-size:10px;line-height:15px;color:#515151;font-weight:700;max-width:72.19px;max-height:54px;text-decoration:none}.giuseart-nav ul>li a i{border-radius:15px}.giuseart-nav ul>li .chat_animation{display:none}.giuseart-nav ul>li a i.ticon-heart{background:url(https://bhu.edu.vn/wp-content/uploads/2025/07/icon_place_4.png) no-repeat;background-size:contain;width:36px;height:36px;margin-bottom:3px;display:block}.giuseart-nav ul>li a i.ticon-zalo-circle2{background:url(https://bhu.edu.vn/wp-content/uploads/2025/07/icon_zalo_4.png) no-repeat;background-size:contain;width:36px;height:36px;margin-bottom:3px;display:block}.giuseart-nav li .button{background:#fff0}.giuseart-nav ul>li a i.ticon-angle-up{background:url(https://bhu.edu.vn/wp-content/uploads/2025/07/icon_top_up_4.png) no-repeat;background-size:contain;background-color:#ef981d;width:36px;height:36px;margin-bottom:3px;display:block}.giuseart-nav ul>li a i{width:33px;height:33px;display:block;margin:auto}.giuseart-nav ul li .button .btn_phone_txt{position:relative;top:35px;font-size:10px;font-weight:700;text-transform:none}.giuseart-nav ul li .button .phone_animation i{display:inline-block;width:27px;font-size:26px;margin-top:12px}.giuseart-nav ul>li a.chat_animation svg{margin:-13px 0 -20px}.giuseart-nav ul>li a i.ticon-messenger{background:url(https://bhu.edu.vn/wp-content/uploads/2025/07/icon_messager_4.png) no-repeat;background-size:contain;width:36px;height:36px;margin-bottom:3px;display:block}.giuseart-nav ul li .button .phone_animation i{display:inline-block;width:27px;font-size:26px;margin-top:12px}.giuseart-nav ul>li a i.ticon-chat-sms{background:url(https://bhu.edu.vn/wp-content/uploads/2025/07/icon-sms-4.png) no-repeat;background-size:contain;width:36px;height:36px;margin-bottom:3px;display:block}.giuseart-nav ul>li a i.icon-phone-w{background:url(https://bhu.edu.vn/wp-content/uploads/2025/07/icon-phone.png) no-repeat;background-size:contain;margin-bottom:3px}.giuseart-nav ul li .button .btn_phone_txt{position:relative}@media only screen and (max-width:768px){.giuseart-nav li .chat_animation{display:block !Important}.giuseart-nav li.to-top-pc{display:none}.giuseart-nav li .button .phone_animation{box-shadow:none;position:absolute;top:-32px;left:50%;transform:translate(-50%,0);width:60px;height:60px;border-radius:100%;background:#6cb917;line-height:15px;border:2px solid #fff}.giuseart-nav ul>li a{padding:0;margin:0 auto}.giuseart-nav{background:#fff;width:100%;border-radius:0;color:#fff;height:85px;line-height:50px;position:fixed;bottom:0;left:0;z-index:999;padding:5px;margin:0;box-shadow:0 4px 10px 0 #000}.giuseart-nav li{float:left;width:20%;list-style:none;height:50px}.giuseart-nav ul>li a i.ticon-heart{margin-top:8px;width:46px;height:46px}.giuseart-nav ul>li a i.ticon-chat-sms{margin-top:8px;width:46px;height:46px}.giuseart-nav ul>li a i.ticon-messenger{margin-top:8px;width:46px;height:46px}.giuseart-nav ul>li a i.ticon-zalo-circle2{margin-top:8px;width:46px;height:46px}.phone-mobile{display:block!important}}