.ab-intro{
    background-color: #fff;

}

.ab-title{
    font-size: var(--font-24);
   font-weight: var(--font-bolder-700);
   letter-spacing: 2px; 
   margin-bottom: 32px;
}

.ab-intro .ab-intro-title{
    font-size: var(--font-28);
    font-weight: var(--font-bolder-700);
    color: var(--dark-main-color);
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.ab-intro-content-group{
    padding: 48px;
    padding-top: 0;
    padding-right: 0;
}

.ab-intro-content{
   padding: 64px 0px;
   padding-bottom: 0;
}

.ab-intro-des{
    font-size: var(--font-18);
    font-weight: var(--font-bolder-600);
    letter-spacing: 1.5px;
    line-height: 2;
}

.ab-intro-des p{
    margin-bottom: 32px;
}

.ab-intro-des .font-b{
    font-size: var(--font-24);
    font-weight: var(--font-bolder-900);
}

.ab-intro-des .font-s{
    font-size:10px;
}

.main-pic{
    position: relative;
    padding-left: 15%;
    margin-left: 15%;
}

.main-pic img{
    position: relative;
    z-index: 2;
}

.main-pic::after{
    content: "";
    width: 85%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-color: #94aac5;
    clip-path: polygon(20% 0%, 100% 0%, 80% 100%, 0% 100%);
    z-index: 1;
}

/* concept */
.ab-concept-slogan-title{
    background-color: var(--main-color);
    font-size: var(--font-40);
    font-weight: var(--font-bolder-700);
    color: #fff;
    padding: 48px 10%;
    line-height: 1.3;
    position: relative;
}

.ab-concept-decorte{
    position: absolute;
    right: 0;
    bottom: 50px;
    transform: translate(-50px,100%);
}

.ab-concept-slogan-title .title.pl{
    padding-left: 20%;
    display: flex;
    flex-wrap: wrap;
}

.ab-content-items .ab-content-item{
    padding-top: 16px;
}

.ab-content-items .ab-content-item:nth-child(2n) .row{
    flex-direction: row-reverse;
}

.ab-content{
    padding: 48px 10%;
    padding-top: 96px;
}

.ab-concept-small-title{
    color: var(--dark-main-color);
    margin-bottom: 32px;
    position: relative;
    z-index: 5;
}

.ab-content-item-des{
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 16px 16px;
}

.ab-content-item-des .title{
    color: var(--dark-main-color);
    font-size: var(--font-22);
    font-weight: var(--font-bolder-700);
    margin-bottom: 10px;
}

.ab-content-item-des .content{
    font-size: var(--font-18);
    font-weight: var(--font-bolder-600);
    line-height: 2;
}

/* ab service */
.ab-service{
    background-color: var(--dark-main-color);
    position: relative;
    padding: 48px 10%;
    padding-top: 80px;
}

.ab-service .content{
    position: relative;
    z-index: 2;
}

.ab-service::after{
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-image: url(../images/ab/ab-bg.png);
}


.ab-service-decorate{
    width: 65%;
    position: absolute;
    right: 0;
    top: 0;
}

.ab-service-title{
    color: #fff;
}

.ab-service-item{
    background-color: #6ca8a5;
    padding: 16px;
    border-radius: 8px;
}

.ab-service-item .icon{
    width: 100%;
    height: 120px;
    padding:24px 24px;
    display: flex;
    justify-content: center;
}

.ab-service-item .icon img{
    width: max-content;
    height: 100%;
    position: relative;
    object-fit: cover;
}

.name{
    color: #fff;
    text-align: center;
    font-weight: var(--font-bolder-700);
    font-size: var(--font-20);
}

/* time line */
.ab-time-line{
    padding: 48px 10%;
    padding-top: 120px;
}
.ab-time-line .title-group{
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 30px;
}

.ab-time-line .title-group .time-line-title{
    color: var(--dark-main-color);
    font-size: var(--font-32);
    margin-bottom: 8px;
}

.time-line-item{
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 0px;
    padding-bottom: 15px;
    margin-top: -10px;
}


.time-pic{
    width: 100px;
    height: 100px;
    padding: 8px 8px;
    display: flex;
    align-items: center;
}

.time-pic img{
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

.time-des{
    width: calc(100% - 160px);
    margin-left: 60px;
    padding: 8px 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.time-des .time-des-title{
    font-size: var(--font-28);
    color: var(--dark-main-color);
    font-weight: var(--font-bolder-900);
}

.time-des .time-des-content{
    margin-top: 8px;
    font-size: var(--font-18);
    /* font-weight: var(--font-bolder-600); */
}

.time-des .time-des-content .font-bold{
    font-weight: var(--font-bolder-700);

}

.time-line-decorate{
    width: 10px;
    height: calc(100% - 10px);
    position: absolute;
    left: 125px;
    top:-5px;
    background-color: var(--dark-main-color);
}

.time-line-decorate::before{
    content: "";
    position: absolute;
    width: 100%;
    height: 5px;
    background-color: var(--dark-main-color);
    clip-path: polygon(50% 100%, 100% 0, 100% 100%, 0 98%, 0 0);
    left: 0;
    top: -5px;
}

.time-line-item:nth-child(2n) .time-line-decorate{
    background-color: var(--main-color);
}

.time-line-item:nth-child(2n) .time-line-decorate::before{
    background-color: var(--main-color);
}

.time-line-item:nth-child(1) .time-line-decorate::before{
    clip-path: none;
}

.time-line-item:nth-child(2n) .time-line-decorate::after{
    content: "";
    position: absolute;
    width: 100%;
    height: 5px;
    background-color: #fff;
    clip-path: polygon(50% 100%, 100% 0, 100% 100%, 0 98%, 0 0);
    left: 0;
    bottom: 0px;
}

/* business cooperation */
.business-cooperation{
    padding: 48px 10%;
    padding-bottom: 140px;
    position: relative;
    overflow-x: hidden;
}

.business-cooperation-decorate-left,.business-cooperation-decorate-right{
    position: absolute;
}

.business-cooperation-decorate-left{
    left: 0;
    top: 120px;
    width: 47%;
    transform: translateX(-30px);

}

.business-cooperation-decorate-right{
    right: 0;
    bottom: 0;
    width: 70%;
    z-index: 4;
    transform: translateY(-110px);
}

.business-cooperation-content{
    background-color: #f8f8f8;
    position: relative;
    z-index: 3;
    padding: 48px;
    padding-bottom: 170px;
    font-size: var(--font-68);
    font-weight: var(--font-bolder-600);
    line-height: 2;
    letter-spacing: 1px;
}

.business-cooperation-content a{
    margin-top: 24px;
    background-color: var(--dark-main-color);
    padding: 3px 24px;
    /* padding-top: 4px;
    padding-bottom:2px; */
    border-radius: 48px;
    width: max-content;
    color: #fff !important;
    display: flex;
    align-items: center;
}

.business-cooperation-content a i{
    margin-right: 8px;
    font-size: var(--font-22);
}

.business-cooperation-content-decorate{
    width: 110px;
    position: absolute;
    right: 2%;
    bottom: 40px;
}

.decorate-pic{
    display: flex;
    align-items: flex-end;
}

.decorate-pic img{
    width: 75%;
    min-width: 90px;
    padding-left: 24px;
    margin-bottom: 100px;
    max-width: 90px;
}

.business-cooperation .ab-title{
    color: var(--dark-main-color);
    font-size: var(--font-28);
    padding: 8px;
    padding-top: 24px;
}

.phone-history-pic{
    display: none;
}

@media screen and (max-width: 1400px) {
    .ab-concept-slogan-title{
        padding: 64px 5%;
    }
}

@media screen and (max-width: 991px) {
    .ab-intro-content-group{
        display: flex;
        flex-direction: column-reverse;

    }

    .ab-intro-content{
        padding-right: 48px;
    }

    .ab-intro-content-group .col-xl-6{
        width: 100%;
    }

    .ab-concept-slogan-title{
        font-size: var(--font-28);
    }

    .ab-service-item{
        margin: 16px 0px;
    }
}


@media screen and (max-width: 768px) {
    .pc-history-pic{
        display: none;
    }
    .phone-history-pic{
        display: block;
    }

    .ab-time-line .title-group .time-line-title{
        writing-mode: initial;
    }
    .ab-concept-slogan-title{
        font-size: var(--font-24);
    }

    .ab-concept-decorte{
        width: 40vw;
    }

    .ab-content{
        padding-top: 20vw;
    }

    .ab-service-decorate{
        width: 65vw;
    }

    .ab-time-line-decorate img{
        max-width: 180px;
        margin-bottom: 48px;
    }

    .ab-time-line {
        padding: 48px 10%;
        padding-top: 48px;
    }

    .decorate-pic{
        position: absolute;
        left: 0;
        bottom: 64px;
        z-index: 5;
    }

    .business-cooperation-decorate-left img{
        min-width: 320px;
    }

    .business-cooperation-content{
        margin-top: 24px;
    }
}

@media screen and (max-width: 600px) {
    .time-des{
        width: calc(100% - 130px);
        margin-left: 30px;
    }

    .time-line-decorate{
        left: 110px;
    }

    .ab-time-line{
        padding: 48px 16px;
    }

    .ab-service-item .icon img{
        object-fit: contain;
        width: auto;
    }


    .ab-service-item .icon{
        padding: 24px 0px;
        z-index: 10;
    }
}

@media screen and (max-width: 480px) {
    .time-line-item{
        align-items: unset;
    }

    .time-pic{
        margin-top: 32px;
    }

    .time-des .time-des-title{
        font-size: var(--font-24);

    }

    .time-des .time-des-content{
        font-size: var(--font-16);
    }

    .ab-concept-slogan-title .title.pl{
        padding-left: 48px;
    }

    .ab-concept-slogan-title .title.pl div:nth-last-child(1){
        padding-left: 48px;
    }
}