.event_main {
    padding: 140px 0 160px;
}

.event_item {
    position: relative;
    overflow: hidden;
    margin-top: 30px;
    margin-bottom: 30px;
}

@media(max-width:576px) {
    .event_item {
        margin-top: 15px;
        margin-bottom: 15px;
    }
}

.event_item .time {
    font-size: 24px;
    color: #ffffff;
    width: 120px;
    height: 40px;
    background-color: #ff5a00;
    border-radius: 20px;
    text-align: center;
    line-height: 40px;
    display: block;
    position: relative;
    margin: 0 auto 80px;
    z-index: 10;
}

.event_item .time:nth-of-type(n+2) {
    margin: 80px auto 80px;
}

.event_item .time+.cont {
    margin-top: 0 !important;
}

.event_item::before {
    content: "";
    display: block;
    background-color: #eeeeee;
    height: 100%;
    width: 2px;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
}

.event_item .txt {
    width: 41.4%;
    border: 1px solid #e5e5e5;
    padding: 30px 40px 40px;
    position: relative;
}

.event_item .txt::before {
    content: "";
    display: block;
    height: 10px;
    width: 10px;
    border: 1px solid #e5e5e5;
    border-left-color: transparent;
    border-bottom-color: transparent;
    background-color: #fff;
    position: absolute;
    right: -6px;
    top: 12px;
    transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -webkit-transform: rotate(45deg);
}

.event_item .date {
    font-size: 20px;
    font-weight: normal;
    color: #ff5a00;
    margin: 0;
}

.event_item .intro {
    font-size: 14px;
    line-height: 24px;
    color: #888888;
    margin-bottom: 0;
}

.event_item .cont.on .txt,
.event_item .cont.on .txt::before {
    box-shadow: 0px 0px 30px 0px rgba(218, 77, 0, 0.1);
    border: solid 1px #ff5a00;
}

.event_item .cont.on .txt::before {
    border-left-color: transparent;
    border-bottom-color: transparent;
}

.event_item .cont {
    position: relative;
    clear: both;
}

.event_item .cont::after {
    content: "";
    display: block;
    width: 10px;
    height: 10px;
    background-color: #ffffff;
    border: solid 2px #ff5a00;
    position: absolute;
    left: 0;
    right: 0;
    top: 12px;
    margin: auto;
    border-radius: 50%;
}

.event_item .cont.on::after {
    background-color: #ff5a00;
    box-shadow: 0 0 0 7px rgba(255, 90, 0, 0.2);
}

.event_item .cont.on::before {
    content: "";
    display: block;
    width: 2px;
    height: 5000px;
    background-color: #ff5a00;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 100%;
    margin: auto;
    transform: translateY(12px);
}

.event_item .cont:nth-of-type(2n) {
    text-align: right;
}

.event_item .cont:nth-of-type(2n) .txt {
    text-align: left;
    display: inline-block;
}

.event_item .cont:nth-of-type(2n) .txt::before {
    right: auto;
    left: -6px;
    border: 1px solid #e5e5e5;
    border-right-color: transparent;
    border-top-color: transparent;
}

.event_item .cont:nth-of-type(2n).on .txt,
.event_item .cont:nth-of-type(2n).on .txt::before {
    box-shadow: 0px 0px 30px 0px rgba(218, 77, 0, 0.1);
    border: solid 1px #ff5a00;
}

.event_item .cont:nth-of-type(2n).on .txt::before {
    border-right-color: transparent;
    border-top-color: transparent;
}

.event_item .more {
    width: 66px;
    height: 66px;
    background-color: #ff5a00;
    display: block;
    margin: auto;
    text-align: center;
    margin-top: 80px;
    position: relative;
    border-radius: 50%;
    color: #fff;
    font-size: 16px;
    padding-top: 16px;
    cursor: pointer;
}

.event_item .more::after {
    content: "";
    display: block;
    height: 5px;
    width: 5px;
    border: solid 2px #ffffff;
    border-top-color: transparent;
    border-left-color: transparent;
    transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -webkit-transform: rotate(45deg);
    background-color: transparent;
    position: absolute;
    right: 0;
    left: 0;
    bottom: 16px;
    margin: auto;
}

.event_item .more.open::after {
    transform: rotate(-135deg);
    -ms-transform: rotate(-135deg);
    -webkit-transform: rotate(-135deg);
}



@media (max-width: 640px) {

    .event_main {
        padding: 30px 0;
    }

    .event_item .time {
        font-size: 20px;
        width: 100px;
        height: 30px;
        line-height: 30px;
        margin-left: 0;
        margin-bottom: 40px;
    }

    .event_item .time:nth-of-type(n+2) {
        margin-left: 0;
        margin-bottom: 40px;
        margin-top: 40px;
    }

    .event_item .date {
        font-size: 18px;
    }

    .event_item .cont:nth-of-type(n) {
        text-align: right;
        margin-top: 20px !important;
    }

    .event_item .cont:nth-of-type(n) .txt {
        text-align: left;
        display: inline-block;
        width: 82.8%;
        padding: 15px 20px 20px;
    }

    .event_item .cont:nth-of-type(n) .txt::before {
        right: auto;
        left: -6px;
        border: 1px solid #e5e5e5;
        border-right-color: transparent;
        border-top-color: transparent;
    }

    .event_item .cont:nth-of-type(n).on .txt,
    .event_item .cont:nth-of-type(n).on .txt::before {
        box-shadow: 0px 0px 30px 0px rgba(218, 77, 0, 0.1);
        border: solid 1px #ff5a00;
    }

    .event_item .cont:nth-of-type(n).on .txt::before {
        border-right-color: transparent;
        border-top-color: transparent;
    }

    .event_item .cont.on::before,
    .event_item::before,
    .event_item .cont.on::after,
    .event_item .cont::after {
        right: 82.8%;
    }




}