.project-intro-box {
    max-width: 1218px;
    margin: 0 auto 40px;
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    background-color: transparent;
    line-height: 1;
}

.intro-col-1 .title {
    font-size: 16px;
    color: #333;
    margin-bottom: 15px;
    display: flex;
    align-items: baseline;
    font-family: "Microsoft YaHei", sans-serif;
}
.intro-col-1 .title span {
    color: #94195b;
    font-size: 24px;
    font-weight: bold;
    margin-left: 2px;
}
.intro-col-1 .tags {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}
.intro-tag {
    background-image: linear-gradient(180deg, #b0041a 0%, #3c1053 100%), linear-gradient(#1e1f3e, #1e1f3e);
    background-blend-mode: normal, normal;
    border-radius: 4px;
    color: #fff;
    width: 100px;
    height: 53px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: 0;
    line-height: 1;
}
.intro-tag .num {
    font-size: 26px;
    font-weight: normal;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1;
}
.intro-tag .txt {
    font-size: 12px;
    line-height: 1.1;
    margin-left: 5px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: scale(0.9);
}
.intro-col-2 {
    text-align: center;
    position: relative;
}

.intro-col-2 .title {
    font-size: 35px;
    color: #94195b;
    margin-bottom: 10px;
    font-weight: normal;
}
.intro-col-1 .desc {
    font-size: 14px;
    color: #333;
    line-height: 1.6;
}
.intro-col-2 .line {
    height: 1px;
    background-color: #94195b;
    width: 7em;
    margin: 0 auto 20px;
}
.intro-col-2 .desc {
    font-size: 18px;
    color: #94195b;
    line-height: 1.4;
}

.intro-col-3 .title {
    font-size: 18px;
    color: #333;
    margin-bottom: 20px;
    display: flex;
    align-items: baseline;
    font-family: "Microsoft YaHei", sans-serif;
}
.intro-col-3 .title span {
    color: #94195b;
    font-size: 25px;

    font-weight: bold;
    margin-left: 10px;
}
.intro-col-3 .boxes {
    display: flex;
    gap: 45px;
}
.intro-box {
    width: 310px;
    height: 72px;
    width: 310px;
    height: 72px;
    background-image: linear-gradient(180deg, #b0041a 0%, #3c1053 100%), linear-gradient(#1e1f3e, #1e1f3e);
    color: #fff;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-radius: 4px;
    box-sizing: border-box;
}
.intro-box .year {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 4px;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1;
}
.intro-box .year span {
    font-size: 14px;
    font-weight: normal;
    margin-left: 2px;
}
.intro-box .desc {
    font-size: 13px;
    letter-spacing: 0.5px;
}

/*
 * [需求]: 项目介绍上半部分移动端适配
 * [思路]: 1.三列校史信息改为纵向堆叠 -> 2.1919/1929卡片全宽 -> 3.下方成果图与历程图保持原图缩放
 */
@media (max-width: 768px) {
    #modular1 {
        line-height: 1.5;
    }

    .project-intro-box {
        flex-direction: column;
        align-items: center;
        gap: 0.4rem;
        margin: 0 auto 0.32rem;
        padding: 0;
        width: 100%;
    }

    .intro-col {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .intro-col-1 .title,
    .intro-col-3 .title {
        justify-content: center;
        flex-wrap: wrap;
        margin-bottom: 0.2rem;
        font-size: 0.28rem;
        line-height: 1.4;
    }

    .intro-col-1 .title span {
        font-size: 0.36rem;
        margin-left: 0.04rem;
    }

    .intro-col-1 .tags {
        justify-content: center;
        gap: 0.2rem;
        margin-bottom: 0.16rem;
    }

    .intro-tag {
        width: 1.8rem;
        height: 0.9rem;
    }

    .intro-tag .num {
        font-size: 0.4rem;
    }

    .intro-tag .txt {
        font-size: 0.2rem;
    }

    .intro-col-1 .desc {
        font-size: 0.26rem;
    }

    .intro-col-2 .title {
        font-size: 0.48rem;
        margin-bottom: 0.12rem;
    }

    .intro-col-2 .line {
        margin-bottom: 0.12rem;
        width: 4em;
    }

    .intro-col-2 .desc {
        font-size: 0.32rem;
    }

    .intro-col-3 .title span {
        font-size: 0.32rem;
        margin-left: 0.08rem;
    }

    .intro-col-3 .boxes {
        flex-direction: column;
        gap: 0.16rem;
        width: 100%;
    }

    .intro-box {
        width: 100%;
        height: auto;
        padding: 0.2rem 0.16rem;
    }

    .intro-box .year {
        font-size: 0.36rem;
        margin-bottom: 0.08rem;
    }

    .intro-box .year span {
        font-size: 0.24rem;
    }

    .intro-box .desc {
        font-size: 0.24rem;
        line-height: 1.4;
    }

    #modular1 .project-highlights img,
    #modular1 .mba-line-img {
        width: 100%;
        height: auto;
        display: block;
        margin: 0 auto;
    }

    #modular1 .mba-line-img {
        margin-top: 0.2rem;
    }
}