.banner_width {
    width: 1340px;
    margin: auto;
}

.banner_title {
    font-size: 40px;
    font-weight: normal;
    font-stretch: normal;
    letter-spacing: 0px;
    color: #333333;
    text-align: center;
}

.intro {
    background-image: url(../../images/2024_new/trusteeship/banner.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    height: 660px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.intro_t{
    font-weight:700;
    color:#ffffff;
    font-size:42px;   
}
.intro_exp{
    color:#ffffff;
    font-size:28px;
    padding-bottom:12px;
    margin-top: 24px;  
}

.techpark{
    padding: 100px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.techpark_exp{
    width: 1000px;
    line-height: 32px;
    color: #666666;
    font-size: 16px;
    text-align: center;   
}
.techpark_t{
    color:#333333;
    font-size:40px;  
    margin-top: 100px; 
}
.techpark img{
    width: 1202px;
    margin-top: 56px;
}

.techparkintro img{
    width: 100%;
}


.polymerization{
    padding: 100px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.polymerization_m{
    width: 1130px;
    margin-top: 56px;
    display: flex;justify-content: space-between;
    align-items: center;
}
.polymerization_m img{
    width:607px;  
}
.polymerization_m ul{
    width: 400px;
    color:#333333;
    font-size:16px;
}
.polymerization_m ul li{
    height: 30px;
    display: flex;
    align-items: center;
    position: relative;
}
.polymerization_m ul li::before{
    content: '';
    position: absolute;
    width: 11px;
    height: 11px;
    transform: rotate(45deg);
    background: #e7290f;
    border-radius: 2px;
    left: -20px;   
}

.ask{
    background:#fbfbfb;
    padding: 70px 0;  
    display: flex;
    flex-direction: column;
    align-items: center;
}
.ask img{
    width:1143px; 
    margin-top: 56px;  
}

.advantage{
    padding: 100px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.advantage_m{
    margin-top: 90px;
    width:1067px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.advantage_block{
    width:313px;
    display: flex;
    align-items: center;
    flex-direction: column;
}
.advantage_block img{
    width:140px;   
}
.advantage_block p{
    color:#333333;
    font-size:24px;  
    margin: 16px 0 32px 0;
}
.advantage_block span{
    height:44px;
    color:#333333;
    font-size:16px;
    text-align:center;  
    line-height: 22px;
}
.characteristic{
    background:#fbfbfb;  
    padding: 70px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.characteristic_m{
    margin-top: 56px;
    width:1067px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.characteristic_block{
    width:288px;
    display: flex;
    align-items: center;
    flex-direction: column;
}
.characteristic_block img{
    width:100px;   
}
.characteristic_block p{
    color:#333333;
    font-size:24px;  
    margin: 16px 0 32px 0;
}
.characteristic_block span{
    color:#333333;
    font-size:16px;
    text-align:center;  
    line-height: 22px;
}

.solution{
    background:#130d37;  
    padding-top: 70px;
}
.solution_m{
    margin-top: 56px;
    display: flex;
    justify-content: space-between;
}
.solution_block{
    display: flex;
    align-items: center;
    flex-direction: column;
    width:227px;
    height:352px;
    transition: all .3s;
    position: relative;
    cursor: context-menu;
}
.solution_block:hover{
    background:#e7290f;
    transition: all .3s;
}
.solution_block_img{
    width: 40px;
    margin-top: 8px;
}
.solution_block p{
    color:#ffffff;
    font-size:20px;
    margin: 16px 0 32px 0;
}
.solution_block span{
    width: 204px;
    line-height: 24px;
    color: #ffffff;
    font-size: 12px;    
}
.solution_block_imgb{
    position: absolute;
    width:41px;
    height:28px;
    right: -38px;
    top: 32px;
}

.scope{
   padding: 100px 0; 
   display: flex;
   flex-direction: column;
   align-items: center;
}

.scope_tab{
    width: 880px;
    margin: 64px 0 56px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color:#666666;
    font-size:20px;
}

.scope_tab li {
    font-size: 18px;
    cursor: pointer;
    position: relative;
    transition: .3s ease;
}

.scope_tab_active {
    color: #e7290f;
    transition: color .3s ease;
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    transition:all .3s ;
}

.scope_tab_active::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 4px;
    background-color: #e7290f;
    bottom: -11px;
    -webkit-transition: all .3s;
    animation: show 0.5s ease forwards;
}

@keyframes show {
    0% {
        opacity: 0;
        transform: scale(0.1);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.scope_content{
    position: relative;
    width: 1000px;
    height:374px;
}
.scope_panel{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    position: absolute;
}
.scope_panel_spe>div{
    display: flex;
    align-items: center;
    flex-direction: column;
}
.scope_panel_active{
    opacity: 1;
    transition:all .3s ;
}
.scope_block{
    margin-left: 64px;
}
.scope_block_p{
    color:#333333;
    font-size:16px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    line-height: 22px;
}
.scope_block_p i{
    width: 11px;
    height: 11px;
    background: #e7290f;
    border-radius: 2px;
    margin-right: 24px;
    display: block;
    transform:rotate(45deg);
}
.scope_block_t{
    color:#333333;
    font-size:20px;
    margin-bottom: 10px;
}
.scope_panel_exp{
    color:#666666;
    font-size:16px;
    margin-top: 24px;   
}

.case{
    padding: 70px 0;
    background:#fbfbfb;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.case_m{
    width:1335px;
    margin-top: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.case_card{
    position: relative;
    width:413px;
    height: 340px;
    margin-bottom: 48px;
    box-shadow:9.7px 11px 14.2px rgba(187, 187, 187, 0.2);
}
.case_card img{
    width: 100%;
}
.case_card_b{
    position: absolute;
    width: 100%;
    height:184px;
    background:#ffffff;
    border-radius:8px;
    bottom: 0;
}
.case_card_b_bottom{
    height: 220px !important;
}
.case_card_t{
    color:#333333;
    font-size:20px;
    margin:24px 0 8px 16px;
}
.case_card_exp{
    width:378px;
    margin-left:16px ;
    color:#666666;
    font-size:12px;
    line-height: 20px;
}