body {
    color: #666;
    min-height: 600px;
    font-size: 15px;
    position: relative;
    background-color: #333;
    font-family: 'Microsoft Yahei';
    background: url(../img/bg.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    margin: 0px;
}

main {
    max-width: 620px;
    width: 100%;
    margin: 0 auto;
}

.app {
    width: 100%;
    height: calc(96% - 70px);
}

#player {
    object-fit: cover;
    object-position: center center;
}

#buttons {
    height: 60px;
    text-align: center;
    padding-top: 10px;
    background: #000;
}

#switch, #weixin, #next {
    background: #FFF;
    background: linear-gradient(to bottom, #FF2, #FB0);
    color: #AF2E08;
    font-size: 16px;
    font-weight: bold;
    height: 40px;
    padding: 0px 20px;
    margin: 0px 5px;
    border-radius: 20px;
}

.notice-board {
    position: fixed;
    z-index: 9998;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .6);
    display: flex;
    justify-content: center;
    align-items: center;
}

.board-title {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    padding-top: 20%;
}

.board-title>h3 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 1.5rem;
}

.board-content {
    font-size: 1.2rem;
    margin: 10px;
    overflow: auto;
    height: 30%;
    margin-top: 25%;
    padding-top: 15px;
}

.notice-board .board {
    position: relative;
    z-index: 9999;
    width: calc(100% - 60px);
    margin: 0 auto;
    background-color: #fff;
    border-radius: 15px;
    background-position: top;
    background-repeat: no-repeat;
    background-size: contain;
    background-image: url(../img/notice1.png);
}

.notice-board .board-btn-group {
    display: flex;
    justify-content: center;
    padding: 20px 10px;
}

.board-btn {
    text-align: center;
    display: block;
    padding: 10px 0;
    border-radius: 6px;
    font-size: 1.2rem;
    width: calc(50% - 5px);
}