@charset "utf-8";

body {
  width: 100%;
  /*height: 100%;*/
  margin: auto;

  background-color: #fff;
  /*overflow: hidden;*/
  font-family: 'niufont', 'PingFang SC', 'pingfangregular', 'Hiragino Sans GB', STHeitiSC, 'Microsoft YaHei', sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -moz-font-feature-settings: 'liga', 'kern';
}

html {
  overflow: auto;
}

/*@font-face{
  font-family: 'PingFang SC';
  src: url('PingFang.ttf');
}*/
@font-face {
  font-family: 'niufont';
  src: url('DINOffcPro.ttf');
}

@font-face {
  font-family: 'niufontbold';
  src: url('DINOffcPro-Bold.ttf');
}

/*@font-face {
  font-family: 'niufontmedium';
  src: url('DINOffcPro-Medium.ttf');
}*/
/*@font-face {
  font-family: 'pingfang';
  src: url('PingFang.ttf');
}*/
/*@font-face {
  font-family: 'pingfangbold';
  src: url('PingFang Bold.ttf');
}*/
/*@font-face {
  font-family: 'pingfangmedium';
  src: url('PingFang Medium.ttf');
}*/
/*@font-face {
  font-family: 'pingfangregular';
  src: url('PingFang Regular.ttf');
}*/
.pc-params-box {
  display: none;
}

.commonCenter {
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  ;
}

header {
  /*text-align: center;*/
}

.headBanner {
  width: 100%;
  text-align: center;
  margin-top: 7.6rem;
  height: 16rem;
  background: url(paramshandow1.jpg) no-repeat 56% 100%;
  background-size: auto 102%;
  position: relative;
  box-sizing: border-box;
  padding-left: 0 2.1rem;
  overflow: hidden;
}

.headBanner img {
  width: 31rem;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  top: 1.7rem;
  transition: all 0.3s ease-out;
  -webkit-transition: all 0.3s ease-out;
  opacity: 0;
  z-index: 0;
}

.c30_switchBtn {
  /*position: absolute;
  width: 765px;
  height: 259px;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  top: 0;
  text-align: center;
  padding-top: 100px;*/
  box-sizing: border-box;
  text-align: center;
}

.c30_switchBtn li {
  display: inline-block;
  border-radius: 50%;
  width: 3rem;
  height: 3rem;
  margin: 1rem;
  font-size: 0;
  box-sizing: border-box;
  transition: all .4s;
  opacity: 1;
  position: relative;
}

.c30_switchBtn li::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 50%;
  border: 2px solid transparent;
  transition: all .3s ease-out;
}

.c30_switchBtn li:hover::after {
  border-color: #5c6670;
}

.c30_switchBtn li:hover {
  cursor: pointer;
  opacity: 0.5;
}

.c30_switchBtn .currentQiu::after {
  border-color: #5c6670 !important;
  opacity: 1 !important;
}

.c30_switchBtn .currentQiu:hover {
  cursor: pointer;
  opacity: 1;
}

.c30_switchBtn li:nth-child(1) {
  background: #fff;
  border: 1px solid #DDDDDD;
  box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.2);
}

.c30_switchBtn li:nth-child(2) {
  background: #DF001F;
  border: 1px solid #DDDDDD;
  box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.2);
}

.c30_switchBtn li:nth-child(3) {
  background: #144FA2;
  border: 1px solid #DDDDDD;
  box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.2);
}

.c30_switchBtn li:nth-child(4) {
  background: #B3B0AD;
  border: 1px solid #DDDDDD;
  box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.2);
}

.c30_switchBtn li:nth-child(5) {
  background-image: linear-gradient(90deg, #000 28%, #DF001F 31%, #DF001F 69%, #000 71%);
  border: 1px solid #DDDDDD;
  box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.2);
  margin-right: 0;
}

.con30_midImgBox img {
  opacity: 0;
  z-index: 0;
  transition: all .4s;
}

.current {
  opacity: 1 !important;
  z-index: 3;
}

.con12-choose-edition {
  z-index: 9;
  margin-top: 6rem;
  height: 5.2rem;
  position: relative;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
}

.con12-choose-show-edition {
  width: 100% !important;
}

.con12-choose-item {
  position: relative;
  width: 24.9rem;
  border: 1px solid #2B2E38;
  /* font-family: 'niufont','pingfangregular', sans-serif; */
  text-align: center;
  height: 100%;
  line-height: 5.2rem;
  font-size: 2rem;
  color: #333;
}

.con12-choose-show {
  text-align: center;
  float: right;
  width: 14.9rem;
  height: 100%;
  /* font-family: 'niufont','pingfangregular', sans-serif; */
  height: 100%;
  line-height: 5.2rem;
  font-size: 2rem;
  color: #333;
  text-align-last: center;
  margin: 0 auto;
  position: relative;
}

.con12-choose-show i {
  background: url(icon-arrow.svg) no-repeat center center;
  background-size: 100% auto;
  width: .8rem;
  height: .5rem;
  display: block;
  position: absolute;
  right: 1.4rem;
  top: 50%;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
}

.con12-choose-select {
  display: none;
  position: absolute;
  top: 5.2rem;
  right: -1px;
  text-align: center;
  width: 14.9rem;
  /* font-family: 'niufont','pingfangregular', sans-serif; */
  text-align: center;
  font-size: 2rem;
  color: #333;
  text-align-last: center;
  margin: 0 auto;
  background-color: #fff;
  border: 1px solid #2B2E38;
}

.con12-choose-select li {
  text-align: center;
  width: 100%;
  line-height: 5.2rem;
  font-size: 2rem;
  color: #333;
  background-color: #fff;
  border-bottom: 1px solid #2B2E38;
}

.con12-choose-select li:last-of-type {
  border-bottom: none;
}

.con12-choose-select-edition {
  width: 100%;
  z-index: 3;
}

.c28_foot {
  padding-bottom: 5rem;
  width: 90%;
  /* font-family: "niufont","pingfangregular",sans-serif;; */
  font-size: 1.4rem;
  color: #999999;
  line-height: 2.6rem;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  margin-top: 2rem;
  box-sizing: border-box;
}





.m-params-box {
  width: 100%;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
}

.params-head {
  display: block;
  padding-bottom: 5rem;
  overflow: hidden;
}

.params-head li {
  display: inline-block;
  vertical-align: middle;
}

.params-font {
  font-size: 2rem;
  color: #333;
  height: 3rem;
  line-height: 3rem;
  font-family: 'niufontbold', 'PingFang SC', sans-serif;
  font-weight: 500;
}

.params-title {
  width: 50%;
  float: left;
  text-align: left;
  display: inline-block;
  font-family: 'niufontbold', 'PingFang SC', sans-serif;
  font-weight: 500;
  font-size: 2rem;
  color: #333;
  height: 3rem;
  line-height: 3rem;
}

.params-item {
  float: right;
  width: 50%;
  line-height: 3rem;
  text-align: left;
  display: inline-block;
  /* font-family: "niufont","pingfangregular",sans-serif; */
  font-size: 2rem;
  color: #333;
}

.params-color .params-item,
.params-battery-contain .params-item,
.params-length .params-item,
.params-length .params-item,
.params-weight .params-item,
.params-stop .params-item,
.params-brand .params-item,
.params-lamp .params-item {
  display: none;
}

.params-color .params-item:nth-child(2),
.params-battery-contain .params-item:nth-child(2),
.params-length .params-item:nth-child(2),
.params-length .params-item:nth-child(2),
.params-weight .params-item:nth-child(2),
.params-stop .params-item:nth-child(2),
.params-brand .params-item:nth-child(2),
.params-lamp .params-item:nth-child(2) {
  display: block;
}





.m-params-header {
  padding-top: 5rem;
  border-bottom: 1px solid #EEEEEE;
}

.params-style {
  width: 3rem;
  height: 3rem;
  display: inline-block;
  border: 1px solid #ddd;
  border-radius: 50%;
  margin-left: .8rem;
}

.params-style-life1 {
  background: #FFFFFF;
}

.params-style-life2 {
  background: #B3B0AD;
}

.params-style-cms1 {
  background: #FFFFFF;
}

.params-style-cms2 {
  background: #DF001F;
}

.params-style-cms3 {
  background: #144FA2;
}

.params-style-cms4 {
  background: #B3B0AD;
}

.params-style-pro1 {
  background-image: linear-gradient(90deg, #333333 28%, #DF001F 31%, #DF001F 69%, #333333 71%);
}

.m-params-header-none {
  border-bottom: none;
}

/*头部二级导航*/

.m-two-header {
  top: 5rem;
  position: absolute;
  width: 100%;
  z-index: 999;
  background-color: transparent;
  /*opacity:0;*/
  -webkit-animation: fadeIn ease-out 1;
  -moz-animation: fadeIn ease-out 1;
  animation: fadeIn ease-out 1;
  -webkit-animation-fill-mode: forwards;
  -moz-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
  -webkit-animation-duration: 1s;
  -moz-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-delay: 0.5s;
  -moz-animation-delay: 0.5s;
  animation-delay: 0.5s;
}

.m-two-header-content {
  width: 100%;
  position: relative;
  height: 5rem;
  line-height: 5rem;
  overflow: hidden;
}

.m-two-header-theme {
  font-family: 'niufontbold', 'PingFang SC', sans-serif;
  font-weight: 600;
  font-size: 2rem;
  color: #333333;
  display: inline-block;
  float: left;
  padding-left: 1.4rem;
}

.m-two-header-shop {
  display: inline-block;
  background-color: #DF001F;
  border-radius: 3px;
  font-family: "niufontbold", "PingFang SC", sans-serif;
  font-weight: 600;
  font-size: 1.2rem;
  color: #FFFFFF;
  text-align: center;
  width: 8.4rem;
  height: 3rem;
  float: right;
  line-height: 3rem;
  margin-top: 1rem;
  margin-right: 1.4rem;
}

.m-two-header-nav-box {
  display: none;
  width: 100%;
  border-top: 1px solid rgba(0, 0, 0, 0.10);
}

.m-two-header-nav {
  display: inline-block;
  overflow: hidden;
  font-size: 0;
  height: 6rem;
  line-height: 6rem;
  left: 50%;
  position: relative;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
}

.m-two-header-item {
  display: inline-block;
  font-family: "niufontbold", 'PingFang SC', sans-serif;
  font-weight: 600;
  font-size: 1.2rem;
  padding-right: 5.2rem;
}

.m-two-header-item a {
  color: #999;
}

.m-two-header-item:last-of-type {
  padding-right: 0;
}

.m-two-header-cur {
  font-family: "niufontbold", "PingFang SC", sans-serif;
  font-weight: 600;
  font-size: 1.2rem;
  color: #333;
}

.m-two-header-cur a {
  color: #333;
}

.m-two-fixed {
  position: fixed;
  margin-top: 0;
  top: -1px;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.1);
  background: #fefefe;
  background-color: rgba(255, 255, 255, 0.98);
  -webkit-transition-property: background-color, -webkit-backdrop-filter;
  transition-property: background-color, backdrop-filter, -webkit-backdrop-filter;
}

@supports ((-webkit-backdrop-filter: initial) or (backdrop-filter: initial)) {
  .m-two-fixed {
    -webkit-backdrop-filter: saturate(180%) blur(30px);
    backdrop-filter: saturate(180%) blur(30px);
    background-color: rgba(255, 255, 255, 0.7)
  }
}

.nav-arrow-down {
  width: 3.2rem;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  transition: all .3s linear;
}

.nav-arrow-up {
  transition: all .3s linear;
  transform: translate(-50%, -50%) rotateX(180deg);
  -webkit-transform: translate(-50%, -50%) rotateX(180deg);
}

.niu-header {
  z-index: 1000 !important;
}

.pc-two-header {
  display: none;
}

.m-two-header-shop {
  width: 7rem;
}