body {height: 100vh;display: flex;flex-flow: column;align-items: center;justify-content: center;overflow: hidden;background-color: rgba(228, 228, 228, 0);}
video {width: 100%;height: auto;position: relative;z-index: 0;}
.bg {position: fixed;left: 0;top: 0;bottom: 0;right: 0;background: url(../images/01_bg.png) repeat center;z-index: 1;}
.music-box {position: fixed;top: auto;left: 30px;bottom: 50px;right: auto;transform: none;width: 129px;height: 34px;z-index: 5;content: "lb";max-width: none;min-width: 0px;max-height: none;min-height: 0px;margin-top: 0px;margin-left: 0px;margin-right: 0px;margin-bottom: 0px;-webkit-transform: none;}
#audio_btn {width: 118px;height: 25px;background: url(../images/on.png) no-repeat center;display: block;}
#audio_btn.off {background-image: url(../images/off.png);}
.content {position: absolute;z-index: 4;display: flex;flex-flow: column;align-items: center;justify-content: center;color: #fff;padding-top: 120px;text-align: center;}
h2 {font-size: 68px;margin-bottom: 30px;line-height: 1.2;}
.content img {margin-bottom: 30px;}
.content p {font-size: 18px;line-height: 2;margin-bottom: 50px;}
a.more {width: 298px;height: 48px;border: 1px solid;display: flex;align-items: center;justify-content: center;font-size: 16px;color: #fff;position: relative;margin-bottom: 210px;}
a.more::after {content: '';position: absolute;left: 0;top: 0;width: 0;transition: all .3s;z-index: -1;background-color: #f60;height: 100%;}
a.more:hover::after {width: 100%;}
a.more:hover {border-color: #f60;}
em {font-size: 14px;}