       document.body.classList.remove('night');
            document.cookie = "night=0;path=/";
            console.log('夜间模式关闭');
        }
    }else{
        var night = document.cookie.replace(/(?:(?:^|.*;\s*)night\s*\=\s*([^;]*).*$)|^.*$/, "$1") || '0';
        if(night == '0'){
            document.body.classList.remove('night');
        }else if(night == '1'){
            document.body.classList.add('night');
        }
    }
})();
//夜间(日间)模式切换
$("#search-bg").css("backgroun