* {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
body,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
p,
blockquote,
dl,
dt,
dd,
ul,
ol,
li,
pre,
form,
fieldset,
legend,
button,
input,
textarea,
th,
td,
img {
  margin: 0;
  padding: 0;
}
body,
button,
input,
select,
textarea {
  font: 16px "Microsoft Yahei", "Hiragino Sans GB", Arial, sans-serif;
  color: #343434;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: normal;
}
ul,
ol,
li {
  list-style-type: none;
}
img {
  border: none;
  vertical-align: top;
}

.nav ul li .drop {
  width: 100%;
  position: absolute;
  top: 110px;
  background: #fff;
  transform-origin: top;
  transform: rotateX(90deg);
  transition: all 0.3s;
}

.nav ul li:hover .drop {
  transform: rotateX(0deg);
}

.nav ul li .drop a {
  width: 100%;
  height: 42px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid #f1f1f1;
}

.nav ul li .drop a:hover {
  background: #333;
  color: #fff;
}

.head_box .tel {
  display: flex;
  align-items: center;
}
.head_box .tel .icon {
  width: 49px;
  height: 49px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.head_box .tel .icon img {
  width: 100%;
}
.head_box .tel .text {
  margin-left: 10px;
}
.head_box .tel .text .num {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 24px;
  font-weight: bold;
  color: #5370f6;
}
.head_box .tel .text .txt {
  font-size: 16px;
  line-height: 17px;
  color: #838080;
}

/* banner */
.banner {
  width: 100%;
  height: 821px;
  position: relative;
  overflow: hidden;
}

.banner .pagination {
  width: 100%;
  display: flex;
  justify-content: center;
  position: absolute;
  bottom: 30px;
  z-index: 2;
}

.banner .pagination .swiper-pagination-bullet-active {
  background: #5370f6;
}

/* whatdo */
.whatdo {
  width: 1200px;
  margin: 100px auto;
}

.whatdo .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  width: 100%;
}

.whatdo .wrap .item {
  width: 222px;
  height: 222px;
  border-radius: 10px;
  border: solid 2px #e3e4eb;
  flex-wrap: wrap;
  background: #f3f4fa;
  transition: all 0.3s;
}
.whatdo .wrap .item:nth-child(n + 6) {
  margin-top: 20px;
}

.whatdo .wrap .item:hover {
  background-color: #5370f6;
  border-color: #5370f6;
  transform: translateY(-20px);
}
.whatdo .wrap .item:nth-child(1):hover {
  background-color: #5a82d2;
  border-color: #5a82d2;
}
.whatdo .wrap .item:nth-child(2):hover {
  background-color: #ff2442;
  border-color: #ff2442;
}
.whatdo .wrap .item:nth-child(3):hover {
  background-color: #175493;
  border-color: #175493;
}
.whatdo .wrap .item:nth-child(4):hover {
  background-color: #111111;
  border-color: #111111;
}
.whatdo .wrap .item:nth-child(5):hover {
  background-color: #00cf67;
  border-color: #00cf67;
}
.whatdo .wrap .item:nth-child(6):hover {
  background-color: #e6162d;
  border-color: #e6162d;
}
.whatdo .wrap .item:nth-child(7):hover {
  background-color: #5ac0d2;
  border-color: #5ac0d2;
}
.whatdo .wrap .item:nth-child(8):hover {
  background-color: #f28300;
  border-color: #f28300;
}
.whatdo .wrap .item:nth-child(9):hover {
  background-color: #23aee5;
  border-color: #23aee5;
}
.whatdo .wrap .item:nth-child(10):hover {
  background-color: #7033ea;
  border-color: #7033ea;
}

.whatdo .wrap .item .icon {
  width: 110px;
  height: 110px;
  background-color: #ffffff;
  box-shadow: 0px 0px 38px 5px rgba(0, 0, 0, 0.08);
  border-radius: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 33px auto 30px;
}

.whatdo .wrap .item .icon img {
}

.whatdo .wrap .item h6 {
  width: 100%;
  text-align: center;
  font-size: 16px;
  color: #666666;
  line-height: 100%;
}

.whatdo .wrap .item:hover h6 {
  color: #fff;
}

.title {
  text-align: center;
  margin-bottom: 60px;
}

.title h2 {
  font-size: 48px;
  line-height: 100%;
  /*font-weight:bold;*/
}

.title i {
  width: 30px;
  height: 4px;
  display: block;
}

.title .line {
  margin: 16px auto 12px;
  display: flex;
  justify-content: center;
}

.title .line .le {
  background-color: #5370f6;
}

.title .line .ri {
  background-color: #ffce4a;
}

.title .illus {
  font-size: 16px;
  color: #999999;
  line-height: 24px;
}

/* plan */
.plan {
  width: 100%;
  height: 860px;
  background: url(../image/ptc_bg.png) no-repeat;
  display: flex;
  justify-content: center;
  align-items: center;
}

.plan .centent {
  width: 1200px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.plan .centent .text {
}

.plan .centent .text {
  width: 775px;
  text-align: left;
}

.plan .centent .text .title {
}

.plan .centent .text .title {
  text-align: left;
}

.plan .centent .text .title h2 {
  color: #5370f6;
  margin-bottom: 20px;
}

.plan .centent .text .title p {
  font-size: 46px;
  line-height: 100%;
  font-weight: 100;
  color: #342c2a;
}

.plan .centent .text .icon {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.plan .centent .text .icon .item {
  width: 245px;
  height: 194px;
  background-color: #ffffff;
  border-radius: 12px;
  text-align: center;
  padding-top: 40px;
  transition: all 0.3s;
}
.plan .centent .text .icon .item:nth-child(n + 4) {
  margin-top: 20px;
}

.plan .centent .text .icon .item:hover {
  transform: translateY(-20px);
}

.plan .centent .text .icon .item i {
  display: block;
  text-align: center;
  margin-bottom: 20px;
}

.plan .centent .text .icon .item i img {
}

.plan .centent .text .icon .item p {
  color: #666666;
}

.plan .centent .img {
  margin-right: -135px;
}

.plan .centent .img img {
}

/* marketing */
.marketing {
  padding: 100px 0;
}

.marketing .center {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.marketing .center .item {
  width: calc(50% - 12px);
  height: 248px;
  border-top: 1px solid #e3e8ee;
  border-bottom: 1px solid #e3e8ee;
  margin-bottom: -1px;
  padding: 45px 30px 45px 40px;
  display: flex;
  justify-content: space-between;
  position: relative;
}

.marketing .center .item:hover::before {
  content: "";
  width: 100%;
  height: 2px;
  background: #5370f6;
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 1;
}

.marketing .center .item:hover {
  border-color: #fff;
  box-shadow: 0 0 10px rgb(0 0 0 / 10%);
}

.marketing .center .item .text {
}

.marketing .center .item .text {
  width: 350px;
}

.marketing .center .item .text h6 {
  font-size: 22px;
  font-weight: bold;
  line-height: 100%;
  margin-bottom: 16px;
}

.marketing .center .item:hover .text h6 {
  color: #5370f6;
}

.marketing .center .item .text h6 span {
  color: #5370f6;
}

.marketing .center .item:hover .text h6 span {
  color: #ffce4a;
}

.marketing .center .item .text p {
  font-size: 16px;
  color: #666666;
  line-height: 24px;
}

.marketing .center .item .text ul {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
}

.marketing .center .item .text ul li {
  height: 24px;
  background-color: #ffffff;
  border-radius: 12px;
  border: solid 1px #dddddd;
  padding: 0 11px;
  font-size: 12px;
  color: #999;
  line-height: 22px;
  margin-right: 6px;
  margin-bottom: 6px;
}

.marketing .center .item .img {
}

.marketing .center .item .img img {
}

/* main */
.main {
}

.main .item {
  padding: 160px 0;
}

.main .item .center {
  width: 860px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.main .item1 {
  background: url(../image/ptb_bg.png) no-repeat;
}

.main .item3 {
  background: url(../image/ptb_bg2.png) no-repeat;
}

.main .item .center .icon {
}

.main .item .center .icon img {
}

.main .item .center .text {
}

.main .item .center .text h3 {
  font-size: 60px;
  font-weight: bold;
  line-height: 100%;
  margin-bottom: 42px;
}

.main .item .center .text p {
  font-size: 36px;
  line-height: 100%;
  margin-bottom: 28px;
}

.main .item .center .text span {
  font-size: 24px;
  opacity: 0.8;
  display: block;
  margin-bottom: 60px;
  line-height: 34px;
}

.main .item .center .text a {
  display: flex;
  padding: 0 50px;
  width: 322px;
  height: 80px;
  border-radius: 40px;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s;
}

.main .item .center .text a button {
  border: none;
  background: no-repeat;
  font-size: 24px;
  color: #fff;
  cursor: pointer;
}

.main .item .center .text a i {
  width: 12px;
  height: 21px;
  display: block;
  background: url(../image/ptb_button.png) no-repeat;
}

.main .item1 .center .text h3 {
  color: #ff2742;
}

.main .item1 .center .text p {
  color: #fff;
}

.main .item1 .center .text span {
  color: #ffffff;
}

.main .item1 .center .text a {
  background-color: #ff2742;
}

.main .item2 .center .text h3 {
  color: #57c6cb;
}

.main .item2 .center .text p {
  color: #333333;
}

.main .item2 .center .text span {
  color: #666666;
}

.main .item2 .center .text a {
  background-color: #333333;
}

.main .item3 .center .text h3 {
  color: #f49f08;
}

.main .item3 .center .text p {
  color: #fff;
}

.main .item3 .center .text span {
  color: #ffffff;
}

.main .item3 .center .text a {
  background-color: #f49f08;
}

.main .item4 .center .text h3 {
  color: #ff4e62;
}

.main .item4 .center .text p {
  color: #333333;
}

.main .item4 .center .text span {
  color: #666;
}

.main .item4 .center .text a {
  background-color: #333333;
}

.main .item .center .text a:hover {
  width: 342px;
}

/* resource */
.resource {
  width: 100%;
  background: url(../image/ptr_bg.png) no-repeat;
  padding: 100px 0;
}

.resource .title h2 {
  color: #fff;
}

.resource .title .illus {
  color: #ffffff;
  opacity: 0.6;
}

.resource .center {
  width: 1200px;
  margin: 0 auto;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  padding: 32px;
  position: relative;
}

.resource .center .box {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
}

.resource .center .box .tab {
}

.resource .center .box .tab ul {
  display: flex;
  justify-content: center;
  width: 100%;
}

.resource .center .box .tab ul li {
  width: 379px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 101px;
  position: relative;
}

.resource .center .box .tab ul li.on::before {
  content: "";
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  position: absolute;
  top: 0;
  left: 0;
}

.resource .center .box .tab ul li img {
  position: relative;
  z-index: 1;
}

.resource .center .box .tab ul li.tai1 {
  background: url(../image/ptr_tab01.png) no-repeat;
}

.resource .center .box .tab ul li.tai2 {
  background: url(../image/ptr_tab02.png) no-repeat;
}

.resource .center .box .tab ul li.tai3 {
  background: url(../image/ptr_tab03.png) no-repeat;
}

.resource .center .box .item {
  padding: 50px;
  display: flex;
  flex-wrap: wrap;
}

/* .resource .center .box .item + .item{
  display: none;
} */
.resource .center .box .item .list {
  width: calc((100% - 24px) / 3);
  background-color: #f3f4fa;
  border-radius: 8px;
  border: solid 1px #dfdfdf;
  position: relative;
  padding-bottom: 22px;
  margin-right: 12px;
}
.resource .center .box .item .list:nth-child(3n) {
  margin-right: 0;
}
.resource .center .box .item .list:nth-child(n + 4) {
  margin-top: 12px;
}

.resource .center .box .item .list:hover {
  border-color: #5370f6;
}

.resource .center .box .item .list .icon {
  width: 24px;
  height: 24px;
  background-color: #000000;
  border-radius: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 22px;
  left: 35px;
}

.resource .center .box .item .list:hover .icon {
  background: #5370f6;
}

.resource .center .box .item .list .avatar {
  text-align: center;
  padding: 22px 0 0;
}

.resource .center .box .item .list .avatar .radius {
  width: 106px;
  height: 106px;
  margin: 0 auto;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
}

.resource .center .box .item .list .avatar .radius .img {
  width: 96px;
  height: 96px;
  border-radius: 100%;
  overflow: hidden;
  border: 5px solid rgb(0 0 0 / 5%);
  box-sizing: content-box;
}

.resource .center .box .item .list:hover .avatar .radius .img {
  border-color: #5370f6;
}

.resource .center .box .item .list .avatar .radius i {
  width: 32px;
  height: 32px;
  background-color: #f5702f;
  border: solid 2px #ffffff;
  border-radius: 100%;
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-style: inherit;
  line-height: 28px;
  font-weight: bold;
  color: #fff;
}

.resource .center .box .item .list .avatar h6 {
  font-size: 18px;
  position: relative;
  display: inline;
  line-height: 100%;
}

.resource .center .box .item .list .avatar h6 img {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: -20px;
}

.resource .center .box .item .list .avatar span {
  display: block;
  font-size: 14px;
  color: #999;
  line-height: 100%;
  margin-top: 8px;
}

.resource .center .box .item .list .add {
  width: 52px;
  height: 20px;
  background-color: #e4e4eb;
  border-radius: 10px;
  font-size: 14px;
  color: #666666;
  text-align: center;
  line-height: 20px;
  position: absolute;
  top: 22px;
  right: 35px;
}

.resource .center .btn {
  width: 100%;
  position: absolute;
  top: 50%;
  left: 0;
}

.resource .center .btn .le {
  width: 40px;
  height: 40px;
  border: none;
  background: url(../image/ptr_cutover.png) no-repeat 0 0;
  position: absolute;
  left: -70px;
}

.resource .center .btn .ri {
  width: 40px;
  height: 40px;
  border: none;
  background: url(../image/ptr_cutover.png) no-repeat -50px 0;
  position: absolute;
  right: -70px;
}

.resource > .btn {
  width: 258px;
  height: 60px;
  background-color: #333333;
  border-radius: 30px;
  display: flex;
  margin: 60px auto 0;
  padding: 0 30px;
  justify-content: space-between;
  align-items: center;
  font-size: 24px;
  color: #ffffff;
  line-height: 100%;
  transition: all 0.3s;
}

.resource > .btn:hover {
  width: 278px;
}

/* exclusive */
.exclusive {
  padding: 100px 0;
}

.exclusive .center {
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}

.exclusive .center .item {
  width: 100% !important;
  height: 604px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.exclusive .center .item > img {
  width: 100%;
  height: 100%;
}

.exclusive .center .swiper-slide-active {
  z-index: 2;
}

/* .exclusive .center .item + .item{display: none;} */
.exclusive .center .item .list {
  width: 380px;
  /* height: 275px; */
  background-color: #ffffff;
  border: 1px solid #f2f2f8;
  padding: 30px 25px;
}

.exclusive .center .item .list:hover {
  border-color: #5370f6;
}

.exclusive .center .item .list .avatar {
  position: relative;
  display: flex;
}

.exclusive .center .item .list .avatar .ava_img {
  position: relative;
  display: inline-block;
  margin-right: 20px;
}

.exclusive .center .item .list .avatar .ava_img .img {
  width: 94px;
  height: 94px;
  border-radius: 100%;
  overflow: hidden;
  border: 5px solid #f5f4f4;
}

.exclusive .center .item .list:hover .avatar .ava_img .img {
  border-color: #5370f6;
}

.exclusive .center .item .list .avatar .ava_img .img img {
  width: 100%;
}

.exclusive .center .item .list .avatar .ava_img i.icon {
  position: absolute;
  top: 60px;
  left: 70px;
  z-index: 2;
}

.exclusive .center .item .list .avatar .text {
  display: inline-block;
  padding-top: 20px;
}

.exclusive .center .item .list .avatar .text .name {
  font-size: 18px;
  font-weight: bold;
  line-height: 100%;
  margin-bottom: 12px;
}

.exclusive .center .item .list .avatar .text .industry {
}

.exclusive .center .item .list .avatar .text .industry ul {
  font-size: 0;
}

.exclusive .center .item .list .avatar .text .industry ul li {
  width: 66px;
  height: 20px;
  background-image: linear-gradient(90deg, #ce3e55 0%, #fc763a 100%);
  border-radius: 10px;
  font-size: 12px;
  color: #fff;
  text-align: center;
  line-height: 20px;
  display: inline-block;
}

.exclusive .center .item .list .avatar .text .industry ul li + li {
  margin-left: 5px;
}

.exclusive .center .item .list .avatar .platform {
  width: max-content;
  height: 20px;
  background-color: #f2f2f8;
  border-radius: 10px;
  font-size: 12px;
  color: #999999;
  text-align: center;
  line-height: 20px;
  padding: 0 10px;
  position: absolute;
  top: 0;
  right: 0;
}

.exclusive .center .item .list:hover .avatar .platform {
  background-color: #333;
  color: #fff;
}

.exclusive .center .item .list .data {
  display: flex;
  border-top: 1px solid #f2f2f8;
  margin-top: 25px;
  padding-top: 30px;
}

.exclusive .center .item .list .data .digital + .digital {
  margin-left: 42px;
}

.exclusive .center .item .list .data .digital .num {
  font-size: 24px;
}

.exclusive .center .item .list:hover .data .digital .num {
  color: #5370f6;
}

.exclusive .center .item .list .data .digital .rem {
  font-size: 14px;
  color: #999;
}

.exclusive .btn {
  width: 258px;
  height: 60px;
  background-color: #333333;
  border-radius: 30px;
  display: flex;
  margin: 60px auto 0;
  padding: 0 30px;
  justify-content: space-between;
  align-items: center;
  font-size: 24px;
  color: #ffffff;
  line-height: 100%;
}

/* strength */
.strength {
  width: 100%;
  background: url(../image/pts_bg.png) no-repeat;
  padding: 100px 0;
}

.strength .title h2 {
  color: #fff;
}

.strength .title .illus {
  color: #ffffff;
  opacity: 0.8;
}

.strength .centent {
  width: 1200px;
  margin: 0 auto;
}

.strength .centent .item {
  display: flex;
  justify-content: space-between;
}

.strength .centent .item .list {
  width: 206px;
  height: 206px;
  background-color: #ffffff;
  border-radius: 10px;
  padding: 36px;
  text-align: center;
  transition: all 0.3s;
}

.strength .centent .item .list:hover {
  transform: translateY(-20px);
}

.strength .centent .item .list .icon {
  width: 114px;
  height: 99px;
  background: url(../image/pts_iconbg.png) no-repeat;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.strength .centent .item .list p {
  font-size: 18px;
  color: #666;
  line-height: 100%;
  margin-top: 19px;
}

.strength .centent .digital {
  display: flex;
  justify-content: space-around;
  margin-top: 78px;
}

.strength .centent .digital .number {
  width: 400px;
}

.strength .centent .digital .number + .number {
  padding: 0 66px;
  border-left: 1px solid rgba(255, 255, 255, 0.45);
}

.strength .centent .digital .number .num {
  font-size: 80px;
  font-weight: bold;
  color: #fff;
  font-family: arial;
}

.strength .centent .digital .number p {
  font-size: 16px;
  line-height: 24px;
  color: #fff;
}

/* partner */
.partner {
  padding: 100px 0;
}

.partner .item {
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
  padding-top: 1px;
}

.partner .item .swiper-wrapper {
  width: 100%;
}

.partner .item .list {
  margin-left: 1px;
}

.partner .item .list ul {
  font-size: 0;
}

.partner .item .list ul li {
  display: inline-block;
  width: calc(100% / 5);
  overflow: hidden;
  border: solid 1px #e9e9e9;
  margin-left: -1px;
  margin-top: -1px;
}

.partner .item .list ul li img {
  width: 100%;
  transition: all 0.3s;
}

.partner .item .list ul li:hover img {
  transform: scale(1.2);
}

/* serve */
.serve {
  width: 100%;
  padding: 100px 0;
  background: url(../image/bg.5d7a7be9.png) no-repeat center;
}

.serve .center {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  text-align: center;
}

#yuyue {
  width: 100%;
  font-size: 28px;
}
#yuyue div{
  color: #fff;
}
#yuyue .title{margin-bottom: 50px;
}
#yuyue input{
  padding: 10px;
  width: 30%;
}
#yuyue .tj{
  width: 200px;
  border: 1px solid #fff;
  border-radius: 10px;
  padding: 10px;
  margin: auto; margin-top: 50px;
}
.serve .center .text .tit {
  margin-bottom: 40px;
}

.serve .center .text .tit h3 {
  font-size: 38px;
  line-height: 100%;
  color: #fff;
  font-weight: bold;
  margin-bottom: 20px;
}

.serve .center .text .tit p {
  font-size: 18px;
  line-height: 100%;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.01rem;
}

.serve .center .text .ding {
  font-size: 70px;
  font-weight: bold;
  color: #fff;
  line-height: 100%;
  margin-bottom: 80px;
}

.serve .center .text .btm {
}

.serve .center .text .btm .tel {
  display: flex;
  margin-bottom: 16px;
}

.serve .center .text .btm .tel .case {
  height: 52px;
  background-color: #314ed2;
  font-size: 28px;
  text-align: center;
  line-height: 52px;
  color: #fff;
  padding: 0 27px;
}

.serve .center .text .btm .tel .num {
  height: 52px;
  border: solid 1px #314ed2;
  font-size: 36px;
  font-family: arial;
  text-align: center;
  line-height: 50px;
  font-weight: bold;
  color: #fff;
  padding: 0 25px;
}

.serve .center .text .btm p {
  font-size: 32px;
  line-height: 100%;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.02rem;
}

.serve .center .img {
}

/* foot */
.foot {
  width: 1200px;
  margin: 0 auto;
  padding-top: 80px;
}

.foot .fnav {
}

.foot .fnav ul {
  display: flex;
  justify-content: space-between;
}

.foot .fnav ul li {
}

.foot .fnav ul li a {
  font-size: 16px;
  text-align: center;
  display: block;
}

.foot .fnav ul li:hover a {
  color: #5370f6;
}

.foot .fnav ul li a i {
  width: 40px;
  height: 40px;
  display: block;
  margin: 0 auto;
  background: url(../image/ptf_nav.png) no-repeat;
  margin-bottom: 18px;
}

.foot .fnav ul li a i.icon1 {
  background-position: 0 0;
}

.foot .fnav ul li a i.icon2 {
  background-position: 0 -50px;
}

.foot .fnav ul li a i.icon3 {
  background-position: 0 -100px;
}

.foot .fnav ul li a i.icon4 {
  background-position: 0 -150px;
}

.foot .fnav ul li a i.icon5 {
  background-position: 0 -200px;
}

.foot .fnav ul li a i.icon6 {
  background-position: 0 -250px;
}

.foot .fnav ul li a i.icon7 {
  background-position: 0 -300px;
}

.foot .fnav ul li a i.icon8 {
  background-position: 0 -350px;
}

.foot .fnav ul li a i.icon9 {
  background-position: 0 -400px;
}

.foot .fnav ul li a i.icon10 {
  background-position: 0 -450px;
}

.foot .fnav ul li a i.icon11 {
  background-position: 0 -500px;
}

.foot .fnav ul li a i.icon12 {
  background-position: 0 -550px;
}

.foot .fnav ul li:hover a i.icon1 {
  background-position: -50px 0;
}

.foot .fnav ul li:hover a i.icon2 {
  background-position: -50px -50px;
}

.foot .fnav ul li:hover a i.icon3 {
  background-position: -50px -100px;
}

.foot .fnav ul li:hover a i.icon4 {
  background-position: -50px -150px;
}

.foot .fnav ul li:hover a i.icon5 {
  background-position: -50px -200px;
}

.foot .fnav ul li:hover a i.icon6 {
  background-position: -50px -250px;
}

.foot .fnav ul li:hover a i.icon7 {
  background-position: -50px -300px;
}

.foot .fnav ul li:hover a i.icon8 {
  background-position: -50px -350px;
}

.foot .fnav ul li:hover a i.icon9 {
  background-position: -50px -400px;
}

.foot .fnav ul li:hover a i.icon10 {
  background-position: -50px -450px;
}

.foot .fnav ul li:hover a i.icon11 {
  background-position: -50px -500px;
}

.foot .fnav ul li:hover a i.icon12 {
  background-position: -50px -550px;
}

.foot .consult {
  margin-top: 80px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.foot .consult .tel {
  font-size: 16px;
  color: #999;
  line-height: 100%;
  text-transform: lowercase;
}

.foot .consult .tel a {
  color: #999;
}

.foot .consult .tel a:hover {
  color: #666;
}

.foot .consult .img {
  margin-left: 60px;
  display: flex;
}

.foot .consult .img a {
  margin-left: 5px;
}

.foot .consult .img a img {
}

.foot .copy {
  margin-top: 80px;
  padding: 45px 0;
  text-align: center;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  font-size: 16px;
  line-height: 100%;
  color: #999;
}

@media screen and (max-width: 1500px) {
  .nav {
    width: calc(100% - 255px);
  }

  .nav ul li {
    padding: 0 8px;
  }
}
解释