body{
    background-color: #f9fafb;
}
.w{
    width: 1216px;
}
.p0{
    padding: 0;
}
.m0{
    margin: 0;
}
.banner{
    width: 100vw;
    height: 726px;
}
.banner_text{
    width: 736px;
    /* height: 552px; */
    /* 自动布局 */
    display: flex;
    flex-direction: column;
    padding: 128px 32px;
   
}
.b_text_1
,.b_text_2{
    font-family: Roboto;
    font-size: 60px;
    font-weight: bold;
    line-height: 60px;
    letter-spacing: 0px;
    color: #111827;
}
.b_text_2{
    /* font-family: Roboto;
    font-size: 60px;
    font-weight: bold;
    line-height: 60px;
    letter-spacing: 0px;
    color: #111827; */
}
.b_text_3{
    font-family: Roboto;
    font-size: 20px;
    font-weight: normal;
    line-height: 28px;
    letter-spacing: 0px;
    color: #4B5563;
    margin: 24px 0 40px 0;
}

.card_title2{
    font-size: 24px;
    font-weight: bold;
    color: #111827;
}
.card_text2{
    font-size: 16px;
    color: #4B5563;
}
.product{
    width: 100vw;
    height: 834px;
    opacity: 1;
    padding: 96px 0px;
    box-sizing: border-box;
    /* overflow: hidden; */
    background: linear-gradient(0deg, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0)), linear-gradient(180deg, #FFFFFF 0%, #F9FAFB 100%);
}
.product_c{
    width: 1216px;
    height: 642px;
    /* 自动布局 */
    display: flex;
    flex-direction: column;
    padding: 0px 32px;
    
    align-items: center;
    /* overflow: auto; */
    /* opacity: 1;
    background: rgba(0, 0, 0, 0); */
}
.product_c h3{
    margin-bottom: 16px;
    font-family: Roboto;
    font-size: 36px;
    font-weight: bold;
    color: #111827;
}
.product_c  h4{
    margin-bottom: 64px;
    font-family: Roboto;
    font-size: 20px;
    font-weight: bold;
    color: #4B5563;
}
.card_shadow {
    border: none;
    border-radius: 12px;
    opacity: 1;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.001), rgba(0, 0, 0, 0.001)), #FFFFFF;
    box-shadow: 0px 4px 6px -4px rgba(0, 0, 0, 0.1),0px 10px 15px -3px rgba(0, 0, 0, 0.1);
}
.card-img-336{
    width: 336px;
    height: 256px; 
    margin: 0 auto;
    overflow: hidden;
}
.software{
    width: 100vw;
    height: 836px;
    padding: 96px 0px;
    overflow: hidden;
    opacity: 1;
    background: #FFFFFF;
}
.software_c{
    width: 1216px;
    height: 644px;
    /* 自动布局 */
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0px 32px;
 
    opacity: 1;
    background: rgba(0, 0, 0, 0);
}
.software_c h3{
    margin-bottom: 16px;
    font-family: Roboto;
    font-size: 36px;
    font-weight: bold;
    color: #111827;
}
.software_c  h4{
    margin-bottom: 64px;
    font-family: Roboto;
    font-size: 20px;
    font-weight: bold;
    color: #4B5563;
}
.s_card_shadow{
    flex: 1;
    height: 224px;
    display: flex;
    flex-direction: column;
    border: none;
    padding: 32px;
    border-radius: 16px;
    opacity: 1;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.001), rgba(0, 0, 0, 0.001)), rgba(0, 0, 0, 0), linear-gradient(135deg, #F9FAFB -1%, #FFFFFF 99%);
    box-shadow: 0px 4px 6px -4px rgba(0, 0, 0, 0.1),0px 10px 15px -3px rgba(0, 0, 0, 0.1);
}
.c_body_l{
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #e1edfc;
    border-radius: 12px;
    margin-right: 24px;
}
.c_body_l> img{
    width: 24px;
    height: 24px;
   
   
}
.index_case{
    width: 100vw;
    height: 732px;
    /* 自动布局 */
    display: flex;
    flex-direction: column;
    padding: 96px 0px;

}
.case_c{
    width: 1216px;
    height: 540px;
    /* 自动布局 */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0px 32px;
    box-sizing: border-box;
    
}
.case_card_shadow{
    flex: 1;
    border: none;
    border-radius: 12px;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.001), rgba(0, 0, 0, 0.001)), #FFFFFF;
    box-shadow: 0px 4px 6px -4px rgba(0, 0, 0, 0.1),0px 10px 15px -3px rgba(0, 0, 0, 0.1);
}
.case_img{
    /* width: 384px; */
    height: 192px;
    border-top-left-radius:12px;
    border-top-right-radius: 12px;
    overflow: hidden;
}
.case_badge_list{
    padding: 10px 0 20px 0;
    box-sizing: border-box;
}
.case_c h3{
    margin-bottom: 16px;
    font-family: Roboto;
    font-size: 36px;
    font-weight: 700;
    color: #111827;
}
.case_c  h4{
    margin-bottom: 64px;
    font-family: Roboto;
    font-size: 20px;
    font-weight: 700;
    color: #4B5563;
}



.about{
    width: 100vw;
    height: 576px;
    background: #FFFFFF;
    overflow: hidden;
}
.about_c{
    width: 1216px;
    height: 384px;
    padding: 0px 32px;
    box-sizing: border-box;
    overflow: hidden;
}
.about_c_l{
    flex: 1;
    padding-right: 30px;
    box-sizing: border-box;
}

.about_c_l h3{
    text-align: center;
    margin-bottom: 16px;
    font-family: Roboto;
    font-size: 36px;
    font-weight: bold;
    color: #111827;
}
.about_c_r{
    width: 384px;
    height: 384px;
}
.about_c_r img{
    width: 100%;
    height: 100%;
}
.index_Footer{
    width: 100vw;
    height: 240px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #111827;
    border: none;
}
.footer_c{
    width: 1216px;
    height: 301px;
}
/* 利用媒体查询改变一些样式 */
@media (max-width:767.98px){
    .banner{
        width: 100vw;
        /* 改变移动端的高度 */
        height: auto; 

    }
    .b_text_1
    {
        font-family: Roboto;
        font-size: 26px;
        font-weight: bold;
        color: #111827;
    }
    .b_text_2{
        font-family: Roboto;
        font-size: 26px;
        font-weight: bold;
        color: #111827;
    }
    .b_text_3{
        font-family: Roboto;
        font-size: 16px;
        font-weight: normal;
        line-height: 28px;
        letter-spacing: 0px;
        color: #4B5563;
        margin: 24px 0 40px 0;
    }
    .product,.product_c,.software,.software_c,.index_case,.case_c,.about_c,.about{
        height: auto;
    }

    /* case_c 移动端变窄 */
    .index_case .case_c{
        width: 100vw;
    }
    .about_c_r{
        display: none;
    }
}
/*  banner部分加一些动态效果 */
.typewriter{
    /* width: 10px; */
    min-width: 20px;
    height: 56px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.typewriter > .b_text_3_br{
    display: inline-block;
    width: 5px;
    height: 20px;
    /* background-color: rgba(0, 0, 0, 0.1); */
    animation: blink-caret .7s step-end infinite;
  }
   /* 光标闪烁动画 */
   @keyframes blink-caret {
    from, to { background-color: transparent; }
    50% { background-color: rgba(0, 0, 0, 0.1); }
  }