html body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'SimSun', system-ui, -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;
    font-size: 15px;
    font-weight: normal;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    color: #333;
    background-color: #333;
    background-image: url(https://rplayer.cn/images/background.jpg);
    background-repeat: repeat;
}

a {
    color: darkgray;
    text-decoration: none;
}

a:not(:Invalid):not(.Invalid) {
    vertical-align: middle;
    text-decoration: none;
    color: #333;
    text-decoration: none;
}

a:not(:Invalid):not(.Invalid):hover,
a:not(:Invalid):not(.Invalid):active {
    color: #3f4885;
    text-decoration: none;
}

.btn {
    display: block;
    text-align: center;
    white-space: nowrap;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    border: 1px solid transparent;
    border-radius: 8px;
    box-shadow: 0px 1px 2px rgba(0, 0, 0, .1), 0 0 2px rgba(0, 0, 0, .1);
    transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out
}

.btn:not(:disabled):not(.disabled) {
    cursor: pointer
}

.btn {
    color: #FFDB82;
    background-color: #505aa7;
}

.btn:hover {
    color: #FFDB82;
    background-color: #3f4885;
}

.btn:disabled {
    color: #FFDB82;
    background-color: #505aa7;
}

.btn:not(:disabled):not(.disabled):active,
.show>.btn.dropdown-toggle {
    color: #FFDB82;
    background-color: #272c55;
}

.round_rect {
    display: block;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0px 1px 2px rgba(0, 0, 0, .1), 0 0 2px rgba(0, 0, 0, .1);
}

.skin {
    position: absolute;
    transform: scale(0.5, 0.5);
    -webkit-transform: scale(0.5, 0.5);
    -moz-transform: scale(0.5, 0.5);
    -ms-transform: scale(0.5, 0.5);
    -o-transform: scale(0.5, 0.5);
    background-image: url(https://rplayer.cn/images/skin.png);
}

.skin_c {
    position: absolute;
    transform: scale(0.5, 0.5);
    -webkit-transform: scale(0.5, 0.5);
    -moz-transform: scale(0.5, 0.5);
    -ms-transform: scale(0.5, 0.5);
    -o-transform: scale(0.5, 0.5);
    background-image: url(https://rplayer.cn/images/skin_c.png);
}

.skin_tb {
    position: absolute;
    transform: scale(0.5, 0.5);
    -webkit-transform: scale(0.5, 0.5);
    -moz-transform: scale(0.5, 0.5);
    -ms-transform: scale(0.5, 0.5);
    -o-transform: scale(0.5, 0.5);
    background-image: url(https://rplayer.cn/images/skin_tb.png);
}

.container {
    position: relative;
    overflow: hidden;
    margin: 0px auto;
    padding: 0;
    width: 100%;
    height: 100%;
    max-width: 1024px;
    background: -webkit-linear-gradient(135deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent);
    background: linear-gradient(-45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent);
    background-size: 16px 16px;
    box-shadow: 0 0 2px #000;
}

.window_div {
    position: relative;
    overflow: hidden;
    margin: 30px;
    padding: 0;
    border-radius: 8px;
    background-color: #000;
    box-shadow: 0 0 8px #000;
}

.window_tl {
    top: 0;
    left: 0;
    width: 50px;
    height: 46px;
    z-index: 1;
    transform-origin: top left;
    background-position: 0 -37px;
}

.window_tc {
    top: 0;
    left: 25px;
    width: calc(200% - 120px);
    height: 46px;
    z-index: 0;
    transform-origin: top left;
    background-position: 0 0;
}

.window_tt {
    margin: auto;
    top: 0;
    left: 0;
    right: 0;
    width: 136px;
    height: 36px;
    z-index: 1;
    transform-origin: top;
    background-position: 0 0;
}

.window_tr {
    top: 0;
    right: 0;
    width: 75px;
    height: 46px;
    z-index: 1;
    transform-origin: top right;
    background-position: -50px -37px;
}

.window_cl {
    top: 23px;
    left: 0;
    width: 12px;
    height: calc(200% - 148px);
    z-index: 0;
    transform-origin: top left;
    background-position: 0 0;
}

.window_cr {
    top: 23px;
    right: 0;
    width: 12px;
    height: calc(200% - 148px);
    z-index: 0;
    transform-origin: top right;
    background-position: -12px 0;
}

.window_bl {
    bottom: 0;
    left: 0;
    width: 25px;
    height: 105px;
    z-index: 1;
    transform-origin: bottom left;
    background-position: 0 -83px;
}

.window_bc {
    bottom: 0;
    left: 12px;
    width: calc(200% - 60px);
    height: 20px;
    z-index: 0;
    transform-origin: bottom left;
    background-position: 0 -46px;
}

.window_br {
    bottom: 0;
    right: 0;
    width: 40px;
    height: 105px;
    z-index: 1;
    transform-origin: bottom right;
    background-position: -85px -83px;
}

.window_content {
    display: flex;
    flex-wrap: wrap;
    z-index: 2;
    padding-top: 23px;
    padding-right: 6px;
    padding-bottom: 10px;
    padding-left: 6px;
    border-radius: 10px;
    background-color: #CCD1E1;
}

.title_div {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-start;
    margin: 20px 30px 0 30px;
    width: 100%;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.3);
}

.title_img_div {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    margin: 0 40px;
}

.title_img_div img {
    display: block;
    margin: 0;
    width: 32px;
    height: 32px;
}

.title_img_div span {
    display: block;
    margin-left: 6px;
    font-size: 28px;
    font-weight: bold;
    text-indent: 0;
}

.title_menu_div {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
    margin: 0 30px;
}

.title_menu_div a {
    display: block;
    text-align: center;
    width: 50px;
    font-size: 17px;
    font-weight: bold;
}

.footer_div {
    display: block;
    margin: 0 30px 20px 30px;
    width: 100%;
    height: 40px;
    font-size: 12px;
    text-indent: 0;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.3);
}

.copyright {
    line-height: 40px;
    background-repeat: no-repeat;
    background-position: left center;
}

.email {
    background-repeat: no-repeat;
    background-position: left center;
    margin-left: 10px;
    padding-left: 16px;
    background-size: 12px 12px;
    background-image: url('https://rplayer.cn/images/email.svg');
}


/* .donate {
    background-repeat: no-repeat;
    background-position: left center;
    margin-left: 10px;
    padding-left: 16px;
    background-size: 14px 14px;
    background-image: url('https://rplayer.cn/images/donate.svg');
}

.qrcode {
    display: none;
    position: absolute;
    z-index: 100;
    margin: 0 auto;
    left: 0;
    right: 0;
    bottom: 60px;
    width: 280px;
    max-width: 280px;
    line-height: 0;
    border-radius: 8px;
    box-shadow: 0px 1px 8px rgba(0, 0, 0, .2), 0 0 1px rgba(0, 0, 0, .2);
}

.qrcode img {
    width: 280px;
    height: 280px;
    border-radius: 8px;
}

.donate_a:hover .qrcode {
    display: block;
} */

@media (max-width: 600px) {
    .window_div {
        margin: 10px;
    }
    .title_div {
        margin: 10px 10px 0 10px;
        height: 60px;
    }
    .title_img_div {
        margin: 0 20px;
    }
    .title_menu_div {
        margin: 0 10px;
    }
    .footer_div {
        margin: 0 10px 10px 10px;
    }
}