.container .titles {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 30px;
}

.titles h1 {
    font-family: 'syhtmedium';
    font-weight: normal;
    font-size: 50px;
    color: #9f0702;
    font-family: 'syhtreg';
}

.titles p {
    color: #666666;
    font-size: 24px;
}

.date_line .row {
    display: flex;
    justify-content: center;
}

.date_line .line {
    position: relative;
    width: 4px;
    background-color: #d3d3d3;
}

.date_line .line::before {
    content: '';
    position: absolute;
    width: 6px;
    height: 60px;
    background-color: #fff;
    top: 0;
    left: 0;
}

.date_line .row .left {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    padding-top: 80px;
}

.date_line .icon {
    position: absolute;
}

.date_line .left .icon {
    right: 0;
    transform: translateX(calc(50% + 2px)) rotate(180deg);
}

.date_line .right .icon {
    left: 0;
    transform: translateX(calc(-50% - 2px));
}

.date_line .row .right {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: start;
}

.date_line .years {
    display: flex;
    align-items: center;
    position: relative;
    font-size: 34px;
    font-family: 'syhtmedium';
    color: #222222;
}

.date_line .left .years {
    padding-right: 60px;
}

.date_line .left .years span {
    display: block;
    text-align: right;
    width: 100%;
}

.date_line .right .years {
    padding-left: 60px;
}

.date_line .item_card {
    position: relative;
    display: flex;
    width: 600px;
    background-color: #efefef;
    border-radius: 5px;
    padding: 25px 22px;
    margin-top: 10px;
}

.date_line .item_card::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    right: 50px;
    top: 0;
    background-color: #efefef;
    transform: translateY(-50%) rotate(45deg);
}

.date_line .right .item_card::after {
    right: none;
    left: 50px;
}

.date_line .right .item_card {
    margin-left: 60px;
}

.date_line .left .item_card {
    margin-right: 60px;
}

.date_line .left .item_card {
    flex-direction: row-reverse;
}

.date_line .item_card .pic {
    width: 50%;
   overflow: hidden;
}
.pic:hover img {
    transform: scale(1.2);
}
.pic img {
   width: 100%;
    transition: .5s;
}

.date_line .item_card .text {
    flex: 1;
    font-family: 'syhtreg';
    margin-right: 14px;
    font-size: 16px;
}

.date_line .item {
    margin-top: 35px;
    z-index: 2;
    cursor: pointer;
}

.date_line .item:hover .years span {
    color: #9f0702;
}

.date_line .item:hover .item_card {
    background-color: #f5e6e5;
}

.date_line .left .item_card .text {
    display: flex;
    flex-direction: column;
    align-items: end;
    margin-right: 0;
    margin-left: 14px;
}

.date_line .item_card .month {
    width: auto;
    display: inline-block;
    background-color: #9f0702;
    padding: 3px 20px;
    border-radius: 4px;
    margin-bottom: 22px;
    color: #fff;
}

.date_line .item_card .text p {
    font-size: 18px;
    text-indent: 2em;
    color: #222222;
}

@media screen and (max-width:1400px) {
    .date_line .right .item_card {
        margin-left: 25px;
    }
    .date_line .right .years {
        padding-left: 25px;
    }
    .date_line .left .years {
        padding-right: 25px;
    }
    .date_line .left .item_card {
        margin-right: 25px;
    }
    .date_line .item_card {
        width: 500px;
    }
}

@media screen and (max-width:1100px) {
    .date_line .item_card .pic {
        width: 40%;
    }
    .date_line .item_card {
        width: 400px;
    }
    .date_line .item_card .text p {
        font-size: 12px;
    }
    .date_line .item_card .month {
        font-size: 16px;
        margin-bottom: 5px;
    }
    .date_line .item .years span {
        font-size: 20px;
    }
    .titles h1 {
        font-size: 24px;
    }
    .titles p {
        font-size: 18px;
    }
}

@media screen and (max-width:900px) {
    .date_line .row {
        flex-direction: column-reverse;
    }
    .date_line .row .left,
    .date_line .row .right {
        flex-direction: row;
    }
    .date_line .row .left {
        padding-top: 0;
        padding-left: 120px;
    }
    .date_line .row .right {
        padding-bottom: 0;
    }
    .date_line .line {
        width: 160%;
        transform: translateX(6px);
        height: 2px;
    }
    .date_line .line::before {
        display: none;
    }
    .date_line .item {
        margin-top: 0;
        margin-right: 20px;
    }
    .date_line {
        width: 90%;
        margin: 0 auto;
        overflow-x: scroll;
    }
    .date_line .left .years span {
        text-align: left;
    }
    .date_line .left .years {
        padding-top: 20px;
    }
    .date_line .right .years {
        padding-bottom: 20px;
    }
    .date_line .left .icon {
        top: 0;
        right: none;
        left: 0;
        transform: translateY(-50%) rotate(-90deg);
    }
    .date_line .right .item:nth-child(1) .item_card {
        margin-left: 0;
    }
    .icon {
        width: 15px;
    }
    .date_line .item_card::after {
        left: 25px;
    }
    .date_line .right .item {
        display: flex;
        flex-direction: column-reverse;
    }
    .date_line .right .icon {
        bottom: 0;
        transform: translateY(calc(50% + 2px)) rotate(90deg);
    }
}