.head {
    width: 100%;
    height: 64px;
    line-height: 64px;
    transition: all .5s;
    background: #fff;
    color: #000;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
}

.head_center {
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.head_center div {
    float: left;
}

.head_nav li {
    float: left;
    margin: 0 10px;
    cursor: pointer;
}

.head_nav li a {
    color: #000;
}

.head_logo {
    width: 46px;
    height: 64px;
    background: url('../images/logo_b.png') no-repeat center;
}

.head .head_tel {
    float: right;
}

.head .wap_head_mean {
    float: right;
    display: none;
    font-size: 20px;
    cursor: pointer;
    position: relative;
    z-index: 999;
}

.head_text {
    display: none;
}

#container {
    overflow: hidden;
    position: relative;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
   /*  height: 600px; */
}

#background_video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    object-fit: cover;
    height: 100%;
    width: 100%;
}

#video_cover {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('/static/images/b1.jpg') no-repeat;
    background-size: cover;
    background-position: center;
}

#overlay {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

#main_content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 11;
    color: #fff;
}

#head {
    text-align: center;
    color: rgb(168, 168, 168);
}

#head h1 {
    font-size: 40px;
    letter-spacing: 11px;
    margin-top: 30px;
    margin-bottom: 10px;
}

#head .sub_head {
    letter-spacing: 6px;
}

.swipercode {
    width: 100%;
    height: 100%;
    position: fixed;
    display: none;
    z-index: 10;
    top: 0;
}

.swiperinfo {
    width: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 997;
    color: #fff;
    text-align: center;
    font-family: 'Open Sans Condensed', "微軟正黑體", sans-serif;
}

.swiperinfo h1 {
    font-size: 21px;
    margin: 20px 0;
}

.swiperinfo p {
    font-size: 12px;
}

.swiperinfo a {
    width: 100px;
    height: 30px;
    border-radius: 15px;
    background: #fff;
    display: block;
    line-height: 30px;
    margin: 20px auto 0;
}

#triangle-right {
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-left: 10px solid #000;
    border-bottom: 5px solid transparent;
    display: inline-block;
}

@media (max-width:1200px) {
    .head {
        background: #fff;
        position: fixed;
        height: 56px;
        line-height: 56px;
    }
    .head_center {
        width: 90%;
    }
    .head_logo {
        height: 56px;
        background: url('../images/logo_b.png') no-repeat center;
    }
    .head {
        color: #000;
    }
    .head_nav li {
        border-bottom: 1px solid #fff;
    }
    .head_nav li a {
        color: #fff;
    }
    .head:hover li a {
        color: #fff;
    }
    .head_nav {
        position: fixed;
        height: 100%;
        width: 100%;
        background: rgba(80, 132, 191, 0.8);
        left: 100%;
    }
    .head_nav ul li {
        float: none;
        text-align: center;
    }
    .head .head_tel {
        display: none;
    }
    .head .wap_head_mean,
    .head_text {
        display: block;
    }
    #container {
        /* display: none; */
    }
    .sw1,
    .swipercode {
        display: block;
    }
    .contorl_moveup {
        position: relative;
      /*   display: none; */
    }
    .contorl_moveup1 {
        background-color: #fff;
        padding-bottom: 15px;
    }
}