.r-titlebar{height:45px;line-height:45px;text-align:center;position:relative;-webkit-box-sizing:border-box;box-sizing:border-box}
.r-titlebar .l-operate,.r-titlebar .r-operate{position:absolute;top:0;bottom:0;font-size:15px}
.r-titlebar .l-operate{left:0}
.r-titlebar .r-operate{right:0}
.r-titlebar .c-operate{font-size:17px}
.r-titlebar .back{-webkit-box-sizing:border-box;box-sizing:border-box;line-height:1;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;height:100%;padding:0 15px;font-size:10px;color:inherit}
.r-titlebar-theme-a{color:#333;background:0 0}
.r-titlebar-theme-b{color:#fff;background-image:-webkit-gradient(linear,left top,right top,from(#39b9ff),to(#4080e8));background-image:linear-gradient(90deg,#39b9ff 0,#4080e8 100%)}
.r-titlebar-theme-c{color:#fff;background-image:-webkit-gradient(linear,right top,left top,color-stop(2%,#4d78f6),to(#919fff));background-image:linear-gradient(-90deg,#4d78f6 2%,#919fff 100%)}
.r-titlebar-theme-d{color:#fff;background-image:linear-gradient(-269deg,#15ddc5 1%,#01a6d0 99%)}
.r-titlebar-theme-e{color:#fff;background-image:-webkit-gradient(linear,right top,left top,from(#f86b4a),to(#fec351));background-image:linear-gradient(-90deg,#f86b4a 0,#fec351 100%)}
.r-titlebar-theme-f{color:#fff;background-image:-webkit-gradient(linear,right top,left top,from(#ff3061),to(#fe8166));background-image:linear-gradient(-90deg,#ff3061 0,#fe8166 100%)}
.r-titlebar-theme-b .back,.r-titlebar-theme-c .back,.r-titlebar-theme-d .back,.r-titlebar-theme-e .back,.r-titlebar-theme-f .back{color:#fff}