@media screen and (max-width: 799px) {
  #project-brief .main {
    padding: 0 0.52rem;
    padding-bottom: 200px;
    margin: 0 auto;
  }
  #project-brief .main .img-title-2 {
    width: 260px;
  }
  #project-brief .main .img-title-3 {
    width: 850px;
  }
  #project-brief .main .img-title-4 {
    width: 570px;
  }
  #project-brief .main .img-title-5 {
    width: 700px;
  }
  #project-brief .main .img-title-6 {
    width: 460px;
  }
  #project-brief .main .img-title-7 {
    width: 570px;
  }
  #project-brief .main .p-brief-img img {
    width: 100%;
  }
  #project-brief .main .p-brief-conter {
    line-height: 0.8rem;
    font-size: 0.48rem;
  }
  #project-brief .main .city-join-ul {
    margin: 0 auto;
    width: 100%;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
  }
  #project-brief .main .city-join-ul .city-join-li {
    border-radius: 5px;
    background: #f4f4f4;
    width: 45%;
    margin-bottom: 0.4rem;
    min-height: 6rem;
    margin-left: 0.2rem;
    margin-right: 0.2rem;
  }
  #project-brief .main .city-join-ul .city-join-li img {
    width: 100%;
  }
  #project-brief .main .city-join-ul .city-join-li .li-img {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 4rem;
  }
  #project-brief .main .city-join-ul .city-join-li .li-img img {
    max-width: 8rem;
    max-height: 3rem;
  }
  #project-brief .main .city-join-ul .city-join-li .li-info {
    margin-top: 0.4rem;
    padding: 0 1.2rem;
    padding-bottom: 1.2rem;
    box-sizing: border-box;
  }
  #project-brief .main .city-join-ul .city-join-li .li-info .li-h3 {
    text-align: center;
    margin: 0.4rem auto;
    font-size: 0.72rem;
  }
  #project-brief .main .city-join-ul .city-join-li .li-info .li-p {
    text-align: center;
    letter-spacing: 0.1rem;
    font-size: 0.6rem;
    line-height: 1rem;
  }
  #project-brief .main .join-in-condition-hide {
    display: none;
  }
  #project-brief .main .join-in-condition2-swiper .swiper-container {
    width: 100%;
    border-radius: 0.6rem;
  }
  #project-brief .main .join-in-condition2-swiper .join-in-ul img {
    width: 100%;
  }
  #project-brief .main .join-in-condition2-swiper .join-in-ul .join-in-li {
    width: 90%;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
  }
  #project-brief .main .join-in-condition2-swiper .join-in-ul .join-in-li:last-child {
    width: 98%;
  }
  #project-brief .main .join-in-condition2-swiper .join-in-ul .join-in-li:last-child .top-img {
    margin-bottom: 20px;
    box-sizing: border-box;
    width: 100%;
    padding-bottom: 45.71%;
    position: relative;
  }
  #project-brief .main .join-in-condition2-swiper .join-in-ul .join-in-li:last-child .top-img img {
    position: absolute;
    width: 100%;
    height: 100%;
  }
  #project-brief .main .join-in-condition2-swiper .join-in-ul .join-in-li .top-img {
    box-sizing: border-box;
    width: 100%;
    padding-bottom: 74.8%;
    position: relative;
  }
  #project-brief .main .join-in-condition2-swiper .join-in-ul .join-in-li .top-img img {
    position: absolute;
    width: 100%;
    height: 100%;
  }
  #project-brief .main .join-in-condition2-swiper .join-in-ul .join-in-li .bottom-txt {
    padding: 24px 40px;
    box-sizing: border-box;
  }
  #project-brief .main .flow-path .flow-path-ul {
    display: flex;
    justify-content: center;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li {
    width: 4.8rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li .top-icon {
    width: 2rem;
    height: 2rem;
    border: 1px #dcdcdc solid;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li .top-icon img {
    max-width: 1.2rem;
    max-height: 1.2rem;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li .top-p {
    font-size: 0.4rem;
    margin-top: 0.4rem;
  }
  #project-brief .main .help-support .help-support-ul {
    display: flex;
    justify-content: center;
    background: #f9f9f9;
    padding: 0.4rem 0;
  }
  #project-brief .main .help-support .help-support-ul .help-support-li {
    width: 4.8rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  #project-brief .main .help-support .help-support-ul .help-support-li .top-icon {
    width: 1.8rem;
    height: 1.8rem;
    border: 1px #dcdcdc solid;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  #project-brief .main .help-support .help-support-ul .help-support-li .top-icon img {
    max-width: 1rem;
    max-height: 1rem;
  }
  #project-brief .main .help-support .help-support-ul .help-support-li .top-p {
    font-size: 0.4rem;
    margin-top: 0.4rem;
  }
  #project-brief .main .v-from-conter {
    padding: 0.6rem 0.4rem;
    background: #F9F9F9;
    width: 100%;
    padding-bottom: 1rem;
    display: flex;
    flex-wrap: wrap;
    box-sizing: border-box;
    overflow: hidden;
  }
  #project-brief .main .v-from-conter .n789 {
    color: #F76400;
    margin-right: 0.012rem;
    font-size: 0.3rem;
  }
  #project-brief .main .v-from-conter .v-input-item {
    width: 100%;
    display: flex;
    height: 3rem;
    flex-direction: column;
    margin-bottom: 1.4rem;
  }
  #project-brief .main .v-from-conter .v-input-item label {
    margin-bottom: 0.4rem;
    font-size: 0.6rem;
  }
  #project-brief .main .v-from-conter .v-input-item .v-input {
    border: none;
    border: 1px #E5E5E5 solid;
    height: 2rem;
    line-height: 2rem;
    padding-left: 0.3rem;
    background: none;
    width: 100%;
  }
  #project-brief .main .v-from-conter .v-input-item-column {
    flex-direction: column;
  }
  #project-brief .main .v-from-conter .el-radio {
    min-width: 2.4rem;
  }
  #project-brief .main .v-from-conter .v-with100 {
    width: 100%;
    align-items: flex-start;
    justify-content: center;
  }
  #project-brief .main .v-from-conter .up-img-title {
    width: 100%;
    font-size: 0.6rem;
    font-weight: bold;
  }
  #project-brief .main .v-from-conter .el-checkbox__input.is-checked .el-checkbox__inner,
  #project-brief .main .v-from-conter .el-checkbox__input.is-indeterminate .el-checkbox__inner {
    background-color: #F76400;
    border-color: #F76400;
  }
  #project-brief .main .v-from-conter #distpicker5 {
    height: 2rem;
    display: flex;
    align-items: center;
  }
  #project-brief .submit-ok {
    background: #F76400;
    width: 3.6rem;
    text-align: center;
    padding: 0.16rem 0;
    color: #FFFFFF;
    margin: 0.8rem auto;
    font-size: 0.4rem;
  }
  #project-brief .textarea2 {
    width: 100%;
  }
  #project-brief .textarea2 textarea {
    width: 100%;
    height: 6rem;
  }
}
@media screen and (min-width: 800px) {
  #project-brief .main {
    padding-bottom: 100px;
    margin: 0 auto;
    width: 1200px;
  }
  #project-brief .main .p-brief-img img {
    width: 100%;
  }
  #project-brief .main .p-brief-conter {
    line-height: 34px;
    font-size: 18px;
  }
  #project-brief .main .city-join-ul {
    margin: 0 auto;
    width: 1050px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  #project-brief .main .city-join-ul .city-join-li {
    border-radius: 20px;
    background: #f4f4f4;
    width: 500px;
    margin-bottom: 50px;
    transition: all .4s;
  }
  #project-brief .main .city-join-ul .city-join-li:hover {
    opacity: .9;
    box-shadow: 5px 5px 5px #C0C0C0;
  }
  #project-brief .main .city-join-ul .city-join-li .li-img {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
  }
  #project-brief .main .city-join-ul .city-join-li .li-img img {
    max-width: 400px;
    max-height: 150px;
  }
  #project-brief .main .city-join-ul .city-join-li .li-info {
    margin-top: 20px;
    padding: 0 60px;
    padding-bottom: 60px;
    box-sizing: border-box;
  }
  #project-brief .main .city-join-ul .city-join-li .li-info .li-h3 {
    text-align: center;
    margin: 20px auto;
    font-size: 36px;
  }
  #project-brief .main .city-join-ul .city-join-li .li-info .li-p {
    text-align: center;
    letter-spacing: 5px;
    font-size: 30px;
    line-height: 50px;
  }
  #project-brief .main .join-in-condition2-swiper {
    display: none;
  }
  #project-brief .main .join-in-condition .join-in-ul {
    display: flex;
    width: 1060px;
    flex-wrap: wrap;
    justify-content: space-around;
    margin: 0 auto;
  }
  #project-brief .main .join-in-condition .join-in-ul .join-in-li {
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 20px;
    box-sizing: border-box;
    width: 500px;
  }
  #project-brief .main .join-in-condition .join-in-ul .join-in-li:last-child {
    width: 98%;
  }
  #project-brief .main .join-in-condition .join-in-ul .join-in-li:last-child .top-img {
    box-sizing: border-box;
    width: 100%;
    padding-bottom: 45.71%;
    position: relative;
  }
  #project-brief .main .join-in-condition .join-in-ul .join-in-li:last-child .top-img img {
    position: absolute;
    width: 100%;
  }
  #project-brief .main .join-in-condition .join-in-ul .join-in-li .top-img {
    box-sizing: border-box;
    width: 100%;
    padding-bottom: 100%;
    position: relative;
  }
  #project-brief .main .join-in-condition .join-in-ul .join-in-li .top-img img {
    position: absolute;
    width: 100%;
    height: 100%;
  }
  #project-brief .main .flow-path .flow-path-ul {
    display: flex;
    justify-content: center;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li {
    width: 240px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li .top-icon {
    width: 150px;
    height: 150px;
    border: 1px #dcdcdc solid;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li .top-icon img {
    max-width: 100px;
    max-height: 100px;
    transition: all .5s;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li .top-icon img:hover {
    box-shadow: 5px 5px 5px #CCCCCC;
  }
  #project-brief .main .flow-path .flow-path-ul .flow-path-li .top-p {
    font-size: 30px;
    margin-top: 20px;
  }
  #project-brief .main .help-support .help-support-ul {
    display: flex;
    justify-content: center;
    background: #f9f9f9;
    padding: 60px 0;
  }
  #project-brief .main .help-support .help-support-ul .help-support-li {
    width: 240px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  #project-brief .main .help-support .help-support-ul .help-support-li .top-icon {
    width: 110px;
    height: 110px;
    border: 1px #dcdcdc solid;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  #project-brief .main .help-support .help-support-ul .help-support-li .top-icon img {
    max-width: 80px;
    max-height: 80px;
  }
  #project-brief .main .help-support .help-support-ul .help-support-li .top-p {
    font-size: 30px;
    margin-top: 20px;
  }
  #project-brief .main .v-from-conter {
    padding: 0px 20px;
    background: #F9F9F9;
    width: 100%;
    padding-bottom: 50px;
    display: flex;
    flex-wrap: wrap;
  }
  #project-brief .main .v-from-conter .v-input-item {
    display: flex;
    align-items: center;
    height: 100px;
    margin-right: 50px;
  }
  #project-brief .main .v-from-conter .v-input-item label {
    margin-bottom: 20px;
  }
  #project-brief .main .v-from-conter .n789 {
    color: #F76400;
    margin-right: 3px;
  }
  #project-brief .main .v-from-conter .v-input-item-column {
    flex-direction: column;
  }
  #project-brief .main .v-from-conter .el-radio {
    width: 70px;
  }
  #project-brief .main .v-from-conter .v-input {
    border: none;
    border-bottom: 3px #E5E5E5 solid;
    height: 50px;
    line-height: 50px;
    width: 200px;
    padding-left: 15px;
    background: none;
    padding-bottom: 13px;
  }
  #project-brief .main .v-from-conter .v-margin-r {
    padding-right: 200px;
  }
  #project-brief .main .v-from-conter input,
  #project-brief .main .v-from-conter button,
  #project-brief .main .v-from-conter select,
  #project-brief .main .v-from-conter textarea {
    outline: none;
  }
  #project-brief .main .v-from-conter .v-input:focus {
    border-bottom: 3px #E5E5E5 solid;
  }
  #project-brief .main .v-from-conter .v-with100 {
    width: 100%;
    align-items: flex-start;
    justify-content: center;
  }
  #project-brief .main .v-from-conter .up-img-title {
    width: 100%;
  }
  #project-brief .main .v-from-conter .el-checkbox__input.is-checked .el-checkbox__inner,
  #project-brief .main .v-from-conter .el-checkbox__input.is-indeterminate .el-checkbox__inner {
    background-color: #F76400;
    border-color: #F76400;
  }
  #project-brief .main .v-from-conter #distpicker5 {
    height: 100px;
    display: flex;
    align-items: center;
    margin-top: .6em;
  }
  #project-brief .submit-ok {
    background: #F76400;
    width: 180px;
    text-align: center;
    padding: 8px 0;
    color: #FFFFFF;
    margin: 0 auto;
    font-size: 20px;
  }
  #project-brief .textarea2 {
    width: 100%;
  }
  #project-brief .textarea2 textarea {
    margin-top: .6em;
    width: 100%;
    height: 300px;
  }
}