/*
* 页面功能
*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font: 16px "微软雅黑", "楷体";
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    flex-direction: column;
    background-color: #334455;
}

.title {
    color: #ffffff;
    font-weight: 400;
    letter-spacing: 4px;
}

.screen {
    background-color: #535353 !important;
    width: 65%;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    margin: .4em 0 0;
    cursor: pointer;
}

.controls {
    width: 65%;
    height: 45px;
    background-color: #999999;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
    padding: 10px;
    justify-content: center;
    align-items: center;
    display: flex;
}

.controls button {
    border: none;
    outline: none;
    background-color: transparent;
    cursor: pointer;
    margin: 0 0 0 7px;
}

.controls button.play .fa-play {
    color: #11d13b;
}

.controls button.play .fa-pause {
    color: #ffffff;
}

.controls button.stop .fa-stop {
    color: #f92345;
}

.controls button:hover,
.controls button:active {
    opacity: 0.8;
}

.controls .progress {
    width: 100%;
    height: 8px;
    position: relative;
    margin-left: 8px;
}

.controls .progress .progress-item {
    width: 100%;
    height: 100%;
    cursor: pointer;
    background-color: #2396ef;
    border-radius: 3px;
}

.controls .progress .progress-thumb {
    position: absolute;
    top: -4px;
    left: 0;
    width: 5px;
    background-color: #f2f3f4;
    border: 1px solid #d2d3d4;
    height: 15px;
    cursor: pointer;
    border-radius: 2px;
}

.controls .time {
    color: #ffffff;
    font-weight: bold;
    margin-left: 12px;
}