header {
    position: sticky;
    width: 100%;
    height: 100px;
    background: #fff;
    z-index: 9999;
    display: flex;
    justify-content: center;
}
header .header {
    width: 1200px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
header .header h1 {
    width: 80px;
}
header .header h1 a {
    width: 100%;
}
header .header h1 a img {
    width: 100%;
}
header .header nav {
    display: flex;
    gap: 90px;
}
header .header nav a {
    font-size: 25px;
    font-weight: 500;
    color: #9d9f9f;
}

main {
    padding: 0 0 100px;
    max-width: 1200px;
    margin: 0 auto;
}

.banner_mo {
    display: none;
}

.top {
    position: relative;
    max-width: 1920px;
    margin: 0 auto;
    margin-bottom: 50px;
    display: flex;
    justify-content: center;
}
.top img {
    width: 100%;
}
.top .content {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, 30%);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}
.top pre {
    text-align: center;
    font-size: 40px;
    font-weight: 800;
    color: #63817e;
    line-height: 1.5;
    margin-bottom: 20px;
}
.top p {
    font-size: 27px;
    font-weight: 600;
    color: #fff;
    text-align: center;
    width: fit-content;
    padding: 15px 50px;
    border-radius: 30px;
    background: linear-gradient(to right, #4e77f9, #6fccd1);
}


.section.home .three-btn,
.section.home .two-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 70px;
}
.section.home .three-btn a {
    width: calc(100% / 3 - 15px);
    border-radius: 30px;
    border: 1px solid #b6d3c4;
    padding: 60px 40px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    gap: 70px;
}
.section.home .three-btn a p {
    font-size: 27px;
    font-weight: 800;
    color: #3b6255;
}
.section.home .three-btn span {
    font-size: 23px;
    font-weight: 400;
    color: #5c6260;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.section.home .three-btn span img {
    width: 25px;
    margin-left: 5px;
}
.section.home .three-btn a > img {
    position: absolute;
    right: 40px;
    bottom: 60px;
    width: 70px;
}
.section.home .three-btn a:nth-of-type(2) > img {
    position: absolute;
    right: 40px;
    bottom: 60px;
    width: 60px;
}
.section.home .three-btn a:nth-of-type(3) > img {
    position: absolute;
    right: 40px;
    bottom: 50px;
    width: 65px;
}
.section.home .two-btn .left {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
}
.section.home .two-btn a {
    width: calc(100% / 2 - 15px);
    border-radius: 30px;
    background-color: #eef7ff;
    padding: 60px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.section.home .two-btn a:last-of-type {
    background-color: #eeedfc;
}
.section.home .two-btn p {
    font-size: 27px;
    font-weight: 800;
    line-height: 1.5;
}
.section.home .two-btn span {
    font-size: 23px;
    font-weight: 400;
    color: #5c6260;
    padding: 15px 10px;
    border-radius: 10px;
    background-color: #fff;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.section.home .two-btn span img {
    width: 25px;
    margin-left: 5px;
}




.section.sub {
    display: flex;
    flex-direction: column;
}
.section.sub .sub-title {
    border-bottom: 1px solid #ebebeb;
    margin-bottom: 30px;
}
.section.sub .sub-title h2 {
    font-size: 35px;
    font-weight: 800;
    color: #6dd6ca;
    padding: 30px 0;
}
.section.sub h3 {
    width: fit-content;
    font-size: 23px;
    font-weight: 700;
    color: #fff;
    padding: 15px 30px;
    border-radius: 30px;
    background: linear-gradient(to right, #4e77f9, #6fccd1);
    margin-bottom: 30px;
}
.section.sub pre {
    font-size: 23px;
    font-weight: 500;
    color: #808784;
    line-height: 1.5;
    margin-bottom: 40px;
}
.section.sub pre span.point1 {
    font-size: 24px;
    font-weight: 800;
    color: #4872f9;
    line-height: 1.5;
    margin-bottom: 40px;
}
.section.sub pre span.point2 {
    font-size: 23px;
    font-weight: 500;
    color: #4872f9;
    line-height: 1.5;
    margin-bottom: 40px;
}
.section.sub pre span.point3 {
    font-size: 23px;
    font-weight: 800;
    color: #5d6562;
    line-height: 1.5;
    margin-bottom: 40px;
}

.section.sub .two-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 50px;
}
.section.sub .two-btn a {
    width: calc(100% / 2 - 15px);
    height: 130px;
    border-radius: 30px;
    border: 1px solid #b6d3c4;
    padding: 30px 40px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.section.sub .two-btn a p {
    font-size: 27px;
    font-weight: 800;
    color: #3b6255;
    margin-right: 15px;
}
.section.sub .two-btn a span {
    font-size: 21px;
    font-weight: 400;
    color: #5c6260;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.section.sub .two-btn a span img {
    width: 23px;
    margin-left: 5px;
}
.section.sub .two-btn a img {
    margin-left: auto;
}




@media screen and (max-width: 1919px) {
    .top pre {
        font-size: 38px;
    }
    .top p {
        font-size: 25px;
        padding: 15px 45px;
    }
}
@media screen and (max-width: 1707px) {
    .top pre {
        font-size: 36px;
    }
    .top p {
        font-size: 23px;
        padding: 15px 45px;
    }
}
@media screen and (max-width: 1600px) {
    .top pre {
        font-size: 34px;
    }
    .top p {
        font-size: 21px;
        padding: 15px 45px;
    }
}
@media screen and (max-width: 1423px) {
    .top pre {
        font-size: 32px;
    }
    .top p {
        font-size: 19px;
        padding: 15px 45px;
    }
}
@media screen and (max-width: 768px) {
    header {
        height: 5rem;
        padding: 1.5rem;
    }
    header .header {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    header .header h1 {
        width: 5rem;
    }
    header .header nav {
        gap: 3.5rem;
        justify-content: space-between;
    }
    header .header nav a {
        font-size: 1.5rem;
        font-weight: 600;
    }
    
    main {
        padding: 0 1.5rem 5rem;
    }

    .banner {
        display: none;
    }
    .banner_mo {
        display: block;
    }

    .top {
        margin-bottom: 5rem;
    }
    .top .content {
        width: 100%;
        transform: translate(-50%, 10%);
    }
    .top pre {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
    }
    .top p {
        font-size: 1.4rem;
        padding: 1rem;
        border-radius: 3rem;
    }
    
    
    .section.home .three-btn,
    .section.home .two-btn {
        margin-bottom: 3rem;
    }
    .section.home .three-btn a {
        width: calc(100% / 3 - 0.8rem);
        height: 18.5rem;
        border-radius: 1.5rem;
        border: 0.1rem solid #b6d3c4;
        padding: 2.5rem 1.5rem;
        display: flex;
        align-items: center;
        gap: 1rem;
    }
    .section.home .three-btn a p {
        font-size: 1.6rem;
        text-align: center;
        line-height: 1.3;
    }
    .section.home .three-btn span {
        font-size: 1.2rem;
        color: #b4bab8;
        line-height: 1.3;
        justify-content: flex-start;
    }
    .section.home .three-btn span img {
        display: none;
    }
    .section.home .three-btn a > img {
        position: static !important;
        width: 4rem !important;
    }

    .section.home .two-btn {
        display: flex;
        flex-direction: column;
    }
    .section.home .two-btn .left {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        align-items: flex-start;
        gap: 2rem;
    }
    .section.home .two-btn a {
        width: 100%;
        height: 15rem;
        border-radius: 1.5rem;
        padding: 3rem 2rem;
        margin-bottom: 1.5rem;
    }
    .section.home .two-btn a img {
        height: 100%;
    }
    .section.home .two-btn p {
        font-size: 1.6rem;
    }
    .section.home .two-btn span {
        font-size: 1.4rem;
        font-weight: 500;
        padding: 1rem 0.7rem;
        border-radius: 0.5rem;
    }
    .section.home .two-btn span img {
        width: 1.5rem;
        margin-left: 0.5rem;
    }
    
    
    
    .section.sub .sub-title {
        border-bottom: 0.1rem solid #ebebeb;
        margin-bottom: 2rem;
    }
    .section.sub .sub-title h2 {
        font-size: 2rem;
        padding: 2rem 0;
    }
    .section.sub h3 {
        font-size: 1.6rem;
        padding: 1rem 2rem;
        border-radius: 3rem;
        margin-bottom: 2rem;
    }
    .section.sub pre {
        font-size: 1.6rem;
        margin-bottom: 3rem;
    }
    .section.sub pre span.point1 {
        font-size: 1.7rem;
        margin-bottom: 3rem;
    }
    .section.sub pre span.point2 {
        font-size: 1.6rem;
        margin-bottom: 3rem;
    }
    .section.sub pre span.point3 {
        font-size: 1.6rem;
        margin-bottom: 3rem;
    }
    

    .section.sub .two-btn {
        flex-direction: column;
        margin-top: 5rem;
    }
    .section.sub .two-btn a {
        width: 100%;
        height: fit-content;
        border-radius: 1.5rem;
        border: 0.1rem solid #b6d3c4;
        padding: 2rem 1.5rem;
        margin-bottom: 1.5rem;
    }
    .section.sub .two-btn a p {
        font-size: 1.8rem;
        margin-right: 1rem;
    }
    .section.sub .two-btn a span {
        font-size: 1.4rem;
        font-weight: 500;
    }
    .section.sub .two-btn a span img {
        width: 1.5rem;
        margin-left: 0.5rem;
    }
    .section.sub .two-btn a img {
        width: 4rem;
        margin-left: auto;
    }
}