.banner {
    width: 100%;
}
.banner img {
    display: block;
    width: 100%;
}
.link {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    height: 60px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.16);
}
.link .line {
    width: 108px;
    height: 2px;
    background: #39B6E7;
    position: absolute;
    bottom: -1px;
    /*left: 709px;*/
    transition: 1s;
}
.link a {
    display: block;
    font-size: 20px;
    font-family: HarmonyOS;
    font-weight: 400;
    color: #232323;
    transition: 1s;
    margin-right: 118px;
}
.link a:nth-child(3) {
    margin-right: 0;
}
.link a.on {
    color: #39B6E7;
}
.link a:hover {
    color: #39B6E7;
}
.section {
    margin-bottom: 130px;
}
.section .title {
    width: 100%;
    height: 274px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.15);
}
.joke {
    width: 1480px;
    margin: auto;
}
.section .title h1 {
    font-size: 48px;
    font-family: HarmonyOS-B;
    font-weight: bold;
    color: #333333;
    line-height: 274px;
}

.section .content {
    position: relative;
}
.section .content .joke {
    position: relative;
}
.section .content .joke:after {
    content: "";
    width: 1px;
    height: calc(100% - 300px);
    background: #000000;
    opacity: 0.08;
    position: absolute;
    top: 79px;
    left: 9px;
}
.section .content .item {
    display: flex;
    margin-bottom: 119px;
    padding-left: 36px;
    padding-top: 58px;
    position: relative;
}
.section .content .item:after {
    content: "";
    width: 13px;
    height: 13px;
    background: #FFFFFF;
    border: 1px solid #D6D6D6;
    border-radius: 50%;
    position: absolute;
    left: 3px;
    top: 78px;
    z-index: 99;
    transition: 1s;
}
.section .content .item:before {
    content: "";
    width: 100%;
    height: 1px;
    background: #000000;
    opacity: 0.08;
    position: absolute;
    bottom: -88px;
    left: 319px;
}
.section .content .item .year {
    font-size: 54px;
    font-family: SuisseIntl-B;
    font-weight: bold;
    color: #979797;
    transition: 1s;
    margin-right: 152px;
}
.section .content .item .mounth {
    margin-right: 48px;
}
.section .content .item .mounth p {
    font-size: 54px;
    font-family: SuisseIntl-B;
    font-weight: bold;
    color: #979797;
    transition: 1s;
    margin-bottom: 47px;
}
.section .content .item .text h3 {
    font-size: 34px;
    font-family: HarmonyOS-B;
    font-weight: 400;
    color: #242424;
    margin-bottom: 41px;
    transition: 1s;
}
.section .content .item .text p {
    font-size: 20px;
    font-family: HarmonyOS;
    font-weight: 400;
    color: #A2A2A2;
    line-height: 40px;
    transition: 1s;
}
.section .content .item:hover .text p  {
    color: #3E3E3E;
}
.section .content .item:hover .text h3  {
    font-weight: 700;
}
.section .content .item:hover .mounth p {
    color: #39B6E7;
}
.section .content .item:hover .year {
    color: #39B6E7;
}
.section .content .item:hover:after {
    background: #39B6E7;
    border: 1px solid transparent;
}

.link .line {
    width: 155px;
}
@media screen and (max-width: 1600px) {
    .joke {
        width: 90%;
    }
}
@media screen and (max-width: 1500px) {
    .section .content .item .year {
        font-size: 40px;
    }
    .section .content .item .mounth p {
        font-size: 40px;
    }
    .section .content .item .text h3 {
        font-size: 28px;
    }
    .section .content .item .text p {
        font-size: 16px;
    }
}
@media screen and (max-width: 1024px) {
    .section .content .item .text p {
        font-size: 14px;
        line-height: 28px;
    }
    .banner {
        height: 40vh;
    }
    .banner img {
        height: 100%;
    }
    .link {
        height: 50px;
        padding: 0 30px;
        justify-content: space-between;
    }
    .link a {
        margin-right: 0;
        font-size: 14px;
        text-align: center;
        line-height: 50px;
        height: 100%;
        width: 33.333%;
    }
    .link .line {
        width: 84px;
    }
    .section .title {
        height: 150px;
    }
    .section .title h1 {
        font-size: 32px;
        line-height: 150px;
    }
    .section .content .item {
        padding-left: 30px;
        flex-wrap: wrap;
    }
    .section .content .item .year {
        width: 20%;
        font-size: 24px;
        margin-right: 0;
        margin-bottom: 30px;
    }
    .section .content .item:after {
        top: 72px;
        width: 8px;
        height: 8px;
        left: 6px;
    }
    .section .content .item .mounth {
        width: 80%;
        margin-bottom: 30px;
    }
    .section .content .item .mounth p {
        font-size: 20px;
        margin-bottom: 20px;
    }
    .section .content .item .mounth img {
        width: 100%;
    }
    .section .content .item .text h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }
    .section .content .item {
        margin-bottom: 0;
    }
    .section .content .item:before {
        display: none;
    }
}
@media screen and (max-width: 414px) {
    .link{
        overflow-x: scroll;
    }
    .link::-webkit-scrollbar{
        display: none;
    }
    .link a{
        width: auto;
        margin-right: 30px;
        white-space: nowrap;
    }
}