html {
    background-color: #f2f2f2;
}

.box1 {
    background-image: url(../img/25acef08-26ed-4cb3-963a-b943aacf837f.jpg);
    height: 53vh;
    background-repeat: no-repeat;
    /* 禁止重复 */
    background-size: cover;
    /* 等比铺满，超出裁剪 */
    background-position: center;
    display: flex;
    align-items: center;
}

header {
    background-color: #FFFFFF;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.nav-link {
    color: #000000;
}

.nav-branding h3,
.nav-branding p {
    color: #000000;
}

.sou {
    background-color: #000000;
}

.box1 h2 {
    color: #ffffff;
    font-size: 44px;
    font-weight: 700;
    z-index: 10;
}

.box1 p {
    color: #ffffff;
    font-size: 22px;
    font-weight: 400;
    margin-top: 9px;
    z-index: 10;
}

.box2 {
    padding: 50px 0px;
    background-color: #ffffff;
}

.box2-left h2 {
    font-size: 24px;
    font-weight: 400;
    color: #333;
    line-height: 36px;
}

.box2-content {
    display: flex;
    gap: 20px;
}

.box2-left {
    width: 40%;
    padding: 40px;
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 1px solid #e5e5e5;
}

.box2-right {
    width: calc(60% - 20px);
    padding: 40px;
    /* background-color: #ffffff; */
}

.box2-left img {
    width: auto;
    height: 330px;
}

.box2-right h2 {
    font-size: 24px;
    font-weight: 400;
    color: #333;
    line-height: 36px;
}

.box2-right-content {
    padding: 20px 0px 40px 0px;
    margin-top: 20px;
}

.box2-right-content p {
    font-size: 16px;
    font-weight: 400;
    color: #666666;
    line-height: 27px;
}

.box2-right-info span {
    font-size: 16px;
    color: #333;
    line-height: 44px;
    display: block;
}

.box2-right-btn {
    display: flex;
    gap: 15px;
}

.box2-right-btn a {
    width: 148px;
    display: block;
    margin-top: 42px;
    padding: 15px 42px;
    background-color: #005bac;
    color: #ffffff;
    font-size: 16px;
    font-weight: 400;
    text-align: center;
    border-radius: 5px;
    border: none;

}

.box2-content2 {
    margin-top: 30px;
}

.box2-content2 h2 {
    padding-left: 10px;
    border-left: 5px solid #005bac;
}

.box2-content2-txt {
    margin-top: 20px;
}

.box2-bg {
    margin-top: 10px;
    height: 10px !important;
}

.box2-content2-txt p {
    font-size: 16px;
    font-weight: 400;
    color: #666666;
    line-height: 30px;
}

.box2-content2-txt img {
    width: 40%;
    height: auto;
    margin: 10px auto;
}


@media screen and (max-width: 768px) {
    .box1 {
        height: 30vh;
        min-height: 240px;
    }

    .box1 .m {
        width: 92%;
    }

    .box1 h2 {
        font-size: 28px;
    }

    .box1 p {
        font-size: 16px;
    }

    .box2 {
        padding: 24px 0;
    }

    .box2-content {
        flex-direction: column;
        gap: 0;
    }

    .box2-left {
        width: 100%;
        padding: 20px;
        box-sizing: border-box;
    }

    .box2-left img {
        width: 80%;
        max-width: 280px;
        height: auto;
    }

    .box2-right {
        width: 100%;
        padding: 20px 0 0 0;
        box-sizing: border-box;
    }

    .box2-right h2 {
        font-size: 20px;
        line-height: 30px;
    }

    .box2-right-content {
        padding: 10px 0 20px 0;
        margin-top: 10px;
    }

    .box2-right-content p {
        font-size: 14px;
        line-height: 24px;
    }

    .box2-right-info {
        display: flex;
        flex-direction: column;
    }

    .box2-right-info span {
        font-size: 13px;
        line-height: 26px;
    }

    .box2-right-btn {
        flex-direction: column;
        gap: 10px;
        margin-top: 20px;
    }

    .box2-right-btn a {
        width: 100%;
        box-sizing: border-box;
        margin-top: 0;
        padding: 12px 20px;
        font-size: 15px;
    }

    .box2-content2 {
        margin-top: 30px;
    }

    .box2-content2 h2 {
        font-size: 18px;
        line-height: 28px;
    }

    .box2-content2-txt p {
        font-size: 14px;
        line-height: 24px;
    }

    .box2-content2-txt img {
        width: 100%;
    }
}