.serbox1,
.serbox2,
.serbox3 {
    width: 84%;
    margin-left: 16%;
    padding: 2.8rem .7rem .5rem;
    position: relative;
    border-bottom: 1px solid #e2e2e2;
}

.serbox2,
.serbox3 {
    width: 84%;
    margin-left: 16%;
    padding: .8rem .7rem;
    position: relative;
}

.serbox1>h5 {
    font-size: .5rem;
    color: #222;
    margin-bottom: .6rem;
}

.tit>h5 {
    font-size: .3rem;
    color: #222;
    margin-bottom: .35rem;
}

.tit>h5>img {
    width: .03rem;
    margin-right: .1rem;
}

.tit>p {
    font-size: .16rem;
    color: #666;
    margin-bottom: .3rem;
    width: 43%;
    line-height: 1.6;
}

.serditu {
    position: absolute;
    right: 0;
    width: 45%;
    top: 2rem;
    z-index: -1;
}

.seradrbox {
    width: 31.5%;
    float: left;
    border-radius: .1rem;
    border: 1px solid #e2e2e2;
    margin-right: 2.75%;
    position: relative;
    z-index: 1;
    margin-bottom: .4rem;
    background: #fff;
    padding: .3rem;
    min-height: 3.6rem;
}

.seradrbox:nth-child(3n) {
    margin-right: 0;
}

.seradr {
    margin-top: 1.8rem;
}

.seradrbox>img {
    width: .23rem;
}

.seradrbox>h5 {
    margin: .15rem 0;
    font-size: .2rem;
    color: #222;
}

.seradrbox>p {
    font-size: .16rem;
    line-height: 1.8;
    color: #888;
}

.seradrbox>p>span {
    font-size: .16rem;
    color: #222 !important;
}

.serbox2_input>input {
    background: #f8f8f8;
    border-radius: .1rem;
    line-height: .6rem;
    width: 31.5%;
    margin-right: 2.75%;
    float: left;
    padding: 0 .18rem;
    margin-bottom: .12rem;
    border: none;
    font-size: .16rem;
    color: #444;
}

.serbox2_input_b>input {
    background: #f8f8f8;
    border-radius: .1rem;
    line-height: .6rem;
    width: 31.5%;
    margin-right: 2.75%;
    float: left;
    padding: 0 .18rem;
    margin-bottom: .12rem;
    border: none;
    font-size: .16rem;
    color: #444;
}

/*.serbox2_input_b>input:nth-child(3n) {
    margin-right: 0;
}*/

textarea {
    width: 100%;
    background: #f8f8f8;
    border-radius: .1rem;
    line-height: .6rem;
    float: left;
    padding: 0 .18rem;
    margin-bottom: .12rem;
    border: none;
    font-size: .16rem;
    color: #444;
    height: 1.5rem;
}

/*.serbox2_input>input:nth-child(3n) {
    margin-right: 0;
}*/

input::-webkit-input-placeholder {
    color: #444;
}

input::-moz-placeholder {
    /* Mozilla Firefox 19+ */
    color: #444;
}

input:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 */
    color: #444;
}

input:-ms-input-placeholder {
    /* Internet Explorer 10-11 */
    color: #444;
}

.serbox2_input_b {
    padding-top: .4rem;
    border-top: 1px dashed #e2e2e2;
    margin-top: .3rem;
}

textarea::-webkit-input-placeholder {
    color: #444;
}

textarea::-moz-placeholder {
    /* Mozilla Firefox 19+ */
    color: #444;
}

textarea:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 */
    color: #444;
}

textarea:-ms-input-placeholder {
    /* Internet Explorer 10-11 */
    color: #444;
}

.sub {
    display: block;
    width: 2rem;
    height: .6rem;
    text-align: center;
    background: #1810df;
    font-size: .2rem;
    color: #fff;
    line-height: .6rem;
    border-radius: .1rem;
    margin-top: .6rem;
    -webkit-transition: 0.3s linear;
    -moz-transition: 0.3s linear;
    -ms-transition: 0.3s linear;
    -o-transition: 0.3s linear;
    transition: 0.3s linear;
    cursor: pointer;
}

.sub:hover {
    background: #160fb9;
}

.serbox3 .serbox2_input_b {
    border: none;
    padding-top: 0;
    margin-top: 0;
}

#serbox1,
#serbox2,
#serbox3 {
    position: relative;
    top: -2rem;
}

@media (max-width: 992px) {
    .serbox1,
    .serbox2,
    .serbox3 {
        width: 100%;
        margin-left: 0;
        padding: 40px 20px 30px;
        position: relative;
        border-bottom: 1px solid #e2e2e2;
    }
    .serbox1>h5 {
        font-size: 20px;
        color: #222;
        margin-bottom: 10px;
        margin-top: 30px;
    }
    .tit>h5 {
        font-size: 20px;
        color: #222;
        margin-bottom: 20px;
    }
    .tit>h5>img {
        width: 2px;
        margin-right: 10px;
    }
    .tit>p {
        font-size: 14px;
        color: #666;
        margin-bottom: 10px;
        width: 100%;
        line-height: 1.4;
    }
    .serditu {
        display: none;
        position: absolute;
        right: 0;
        width: 45%;
        top: 6rem;
        z-index: -1;
    }
    .seradrbox {
        width: 100%;
        float: left;
        border-radius: .1rem;
        border: 1px solid #e2e2e2;
        margin-right: 0;
        position: relative;
        z-index: 1;
        margin-bottom: 20px;
        background: #fff;
        padding: 20px;
        min-height: auto;
    }
    .seradrbox>img {
        width: 12px;
    }
    .seradrbox>h5 {
        margin: 10px 0;
        font-size: 16px;
        color: #222;
    }
    .seradrbox>p {
        font-size: 14px;
        line-height: 1.4;
        color: #888;
    }
    .serbox1 {
        padding-bottom: 10px;
    }
    .serbox2 {
        padding-top: 30px;
    }
    .serbox3 {
        padding-top: 30px;
    }
    .serbox2_input>input {
        background: #f8f8f8;
        border-radius: .1rem;
        line-height: 30px;
        width: 100%;
        margin-right: 0;
        float: left;
        padding: 0 20px;
        margin-bottom: 20px;
        border: none;
        font-size: 14px;
        color: #444;
    }
    .serbox2_input_b {
        padding-top: 20px;
        border-top: 1px dashed #e2e2e2;
        margin-top: 8px;
    }
    .serbox2_input_b>input {
        background: #f8f8f8;
        border-radius: .1rem;
        line-height: 30px;
        width: 100%;
        margin-right: 0;
        float: left;
        padding: 0 20px;
        margin-bottom: 20px;
        border: none;
        font-size: 14px;
        color: #444;
    }
    textarea {
        width: 100%;
        background: #f8f8f8;
        border-radius: .1rem;
        line-height: 30px;
        float: left;
        padding: 0 20px;
        margin-bottom: 20px;
        border: none;
        font-size: 14px;
        color: #444;
        height: 90px;
    }
    .sub {
        display: block;
        width: 120px;
        height: 30px;
        text-align: center;
        background: #1810df;
        font-size: 14px;
        color: #fff;
        line-height: 30px;
        border-radius: .1rem;
        margin-top: 0;
    }
}