body {
  min-width: 1200px;
}

.icon-logo {
  width: 39px;
  height: 39px;
  background: url(../img/logo.png);
}

.container {
  width: 1200px;
  margin: 0 auto;
}

.underNav {
  background: url(../img/banner.png) no-repeat;
  padding-top: 78px;
  color: #fff;
}
.underNav .container {
  overflow: hidden;
}
.underNav .right {
  float: right;
  width: 516px;
}
.underNav .left {
  float: left;
  margin-top: 36px;
}
.underNav .left h1 {
  font-size: 52px;
  line-height: 52px;
}
.underNav .left h5 {
  font-size: 28px;
  line-height: 28px;
  font-weight: 200;
  margin: 27px 0 80px;
}
.underNav .left .btns {
  display: inline-block;
  font-size: 0;
}
.underNav .left .btns .btn {
  display: inline-block;
  width: 240px;
  height: 68px;
  line-height: 64px;
  text-align: center;
  border-radius: 34px;
  border: solid 2px rgba(255, 255, 255, 0.5);
  color: #fff;
  font-size: 28px;
  font-weight: 300;
  cursor: pointer;
}
.underNav .left .btns .btn:hover {
  border-color: #ffa04e;
  color: #ffa04e;
}
.underNav .left .btns .active {
  margin-right: 18px;
  border: none;
  line-height: 68px;
  background-image: linear-gradient(-42deg, #ff7547 0%, #ffa04e 100%), linear-gradient(#e83232, #e83232);
}
.underNav .left .btns .active:hover {
  color: #fff;
  background-image: linear-gradient(-42deg, #ffa04e 0%, #ff7547 100%), linear-gradient(#e83232, #e83232);
}
.underNav .advantages {
  background-color: #fdfdfd;
  box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.05);
  border-radius: 10px;
  border: solid 1px #f2f2f2;
  font-size: 0;
  margin-top: 77px;
  overflow: hidden;
  background: #fff;
}
.underNav .advantages li {
  color: #333;
  float: left;
  width: calc(100% / 4);
  height: 162px;
  padding-top: 42px;
  text-align: center;
}
.underNav .advantages li img {
  max-width: 50px;
  max-height: 50px;
  vertical-align: top;
  margin-right: 20px;
}
.underNav .advantages li div {
  display: inline-block;
  text-align: left;
  white-space: nowrap;
}
.underNav .advantages li div h3 {
  font-size: 22px;
  line-height: 22px;
}
.underNav .advantages li div h4 {
  font-size: 13px;
  line-height: 18px;
  margin-top: 8.5px;
  color: #999;
  max-width: 175px;
  font-weight: 300;
  white-space: pre-wrap;
}

h2 {
  text-align: center;
  line-height: 42px;
  font-size: 0;
}
h2 > * {
  vertical-align: middle;
}
h2 span {
  color: #333;
  font-size: 42px;
  line-height: 42px;
  margin: 0 30px;
}
h2 .leftDec {
  display: inline-block;
  width: 68px;
  height: 9px;
  background: url(../img/titleLeft.png) no-repeat;
  background-position: center;
}
h2 .rightDec {
  display: inline-block;
  width: 67px;
  height: 9px;
  background: url(../img/titleRight.png) no-repeat;
  background-position: center;
}

.usages {
  margin-top: 52px;
  text-align: center;
}
.usages ul {
  font-size: 0;
  margin-top: 38px;
  text-align: left;
}
.usages ul .card1 {
  background: #ff7d6d;
  color: #ff7d6d;
}
.usages ul .card2 {
  background: #ff916c;
  color: #f0825d;
}
.usages ul .card3 {
  background: #ffbc6d;
  color: #eca859;
}
.usages ul .card4 {
  background: #ffc658;
  color: #eeb74d;
}
.usages ul .card5 {
  background: #ebd454;
  color: #e0c94b;
}
.usages ul .card6 {
  background: #ccda61;
  color: #c0cd5a;
}
.usages ul .card7 {
  background: #60d489;
  color: #57c77e;
}
.usages ul .card8 {
  background: #38c7d5;
  color: #38becb;
}
.usages ul .card9 {
  background: #6dbcff;
  color: #6dbcff;
}
.usages ul .card {
  height: 158px;
  display: inline-block;
  margin-bottom: 7px;
  border-radius: 10px;
  width: calc((100% - 14px) / 3);
  vertical-align: top;
}
.usages ul .card a {
  display: block;
  width: 100%;
  height: 100%;
  padding: 43px 45px 0 45px;
  white-space: nowrap;
  color: currentColor;
}
.usages ul .card a img {
  width: 58px;
  height: 58px;
  display: inline-block;
}
.usages ul .card a div {
  display: inline-block;
  vertical-align: top;
  margin-left: 20px;
}
.usages ul .card a div h3 {
  width: 164px;
  height: 36px;
  line-height: 36px;
  font-size: 18px;
  border-radius: 18px;
  text-align: center;
  background: #fff;
  color: currentColor;
}
.usages ul .card a div h4 {
  max-width: 230px;
  white-space: pre-wrap;
  color: #fff;
  font-size: 14px;
  line-height: 18px;
  margin-top: 6px;
}
.usages ul .card + .card {
  margin-left: 7px;
}
.usages ul .card:nth-child(3n+1) {
  margin-left: 0;
}
.usages .moreFormat {
  display: inline-block;
  width: 186px;
  height: 47px;
  line-height: 47px;
  border-radius: 24px;
  border: solid 1px #b2b2b2;
  color: #b2b2b2;
  margin-top: 34px;
  margin-bottom: 83px;
}
.usages .moreFormat:hover {
  border-color: #ff7547;
  color: #ff7547;
}

.feedback {
  background: url("../img/feedbackBG.png") no-repeat;
  padding-top: 78px;
  padding-bottom: 146px;
}
.feedback .container {
  margin-top: 57px;
  position: relative;
}
.feedback .container .swiperIcon {
  position: absolute;
  top: 62px;
  width: 42px;
  height: 42px;
  cursor: pointer;
}
.feedback .container .iconPrev {
  left: 0;
}
.feedback .container .iconNext {
  right: 0;
}
.feedback .container #swiper {
  width: 1056px;
  margin: 0 auto;
}
.feedback .container .swiper-container {
  position: relative;
  overflow: hidden;
}
.feedback .container .swiper-container {
  padding: 0;
  margin: 0 auto;
  width: 88%;
  height: 224px;
}
.feedback .container .swiper-wrapper {
  padding: 0;
  margin: 0 auto;
  width: 100%;
  height: 100%;
  white-space: nowrap;
  display: flex;
}
.feedback .container .swiper-slide {
  position: relative;
  display: flex;
  flex-shrink: 0;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 18px;
  cursor: grab;
}
.feedback .container .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}
.feedback .container .feedbackSlide {
  background: url("../img/swiperSlideBG.png") no-repeat;
  height: 224px;
  padding: 60px 30px 0;
  position: relative;
}
.feedback .container .feedbackSlide p {
  font-size: 15px;
  line-height: 22px;
  color: #666;
  font-weight: 300;
  max-width: 100% !important;
  white-space: pre-wrap;
}
.feedback .container .feedbackSlide .user {
  position: absolute;
  left: 57px;
  bottom: 0;
  font-size: 0;
}
.feedback .container .feedbackSlide .user > * {
  vertical-align: middle;
}
.feedback .container .feedbackSlide .user img {
  width: 38px;
  height: 38px;
  margin-right: 11px;
}
.feedback .container .feedbackSlide .user .userName {
  font-size: 16px;
  line-height: 16px;
  font-weight: 300;
  color: #333;
}

.beginnerGuide {
  padding-top: 78px;
  font-size: 0;
}
.beginnerGuide .guideContainer {
  margin-top: 38px;
}
.beginnerGuide .guide {
  display: inline-block;
  width: calc((100% - 38px) / 2);
  margin-bottom: 38px;
  margin-left: 38px;
  padding-left: 10px;
  padding-top: 10px;
  position: relative;
  vertical-align: top;
}
.beginnerGuide .guide .card {
  width: 100%;
  height: 100%;
  color: #ffbc77;
  background-color: #ffffff;
  box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.05);
  border-radius: 10px;
  border: solid 1px #ffede7;
  height: 190px;
  padding: 40px 45px 0 92px;
  vertical-align: top;
}
.beginnerGuide .guide .card h3 {
  width: 391px;
  white-space: nowrap;
  overflow: hidden;
  color: #4c4c4c;
  font-size: 20px;
  line-height: 21px;
  margin-bottom: 20px;
  text-overflow: ellipsis;
}
.beginnerGuide .guide .card h4 {
  width: 425px;
  font-size: 16px;
  line-height: 22px;
  height: 66px;
  color: #999;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}
.beginnerGuide .guide .date {
  position: absolute;
  left: 0;
  top: 0;
  width: 68px;
  height: 68px;
  padding-top: 8.5px;
  width: 68px;
  height: 68px;
  text-align: center;
  background-color: #fffcf7;
  border-radius: 10px;
  border: solid 1px #ffede7;
  color: #ffbc77;
}
.beginnerGuide .guide .date > * {
  vertical-align: middle;
}
.beginnerGuide .guide .date h5 {
  font-size: 37px;
  line-height: 37px;
  margin-bottom: 2.5px;
}
.beginnerGuide .guide .date h6 {
  font-size: 12px;
  line-height: 12px;
}
.beginnerGuide .guide:hover .card {
  border-color: #ffa04e;
}
.beginnerGuide .guide:hover .date {
  background: #ffbc77;
  color: #fff;
}
.beginnerGuide .guide:nth-child(2n+1) {
  margin-left: 0;
}
.beginnerGuide .tagContainer {
  margin-top: 2px;
  font-size: 0;
}
.beginnerGuide .tagContainer a {
  width: 138px;
  height: 38px;
  display: inline-block;
  background: #fefbf6;
  border-radius: 18px;
  font-size: 14px;
  color: #ffbc77;
  line-height: 38px;
  text-align: center;
  border: solid 1px #ffede7;
  margin-left: 13px;
  margin-bottom: 16px;
}
.beginnerGuide .tagContainer a h4 {
  max-width: 100px;
  margin: 0 auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.beginnerGuide .tagContainer a:hover {
  background: #ffbc77;
  color: #fff;
}
.beginnerGuide .tagContainer a:nth-child(8n+1) {
  margin-left: 0;
}

footer {
  padding-bottom: 39px;
  padding-top: 44px;
  color: #b2b2b2;
}
.alert-mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: -ms-flexbox;
  display: -webkit-box;
  display: flex;
  -ms-flex-align: center;
  -webkit-box-align: center;
          align-items: center;
  -ms-flex-pack: center;
  -webkit-box-pack: center;
          justify-content: center;
}
.alert-mask .mask {
    width: 100%;
    height: 100%;
    background: #000;
    opacity: 0.5;
    -moz-opacity: 0.5;
    filter: alpha(opacity=50);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 99;
}
.alert-mask.none {
  display: none !important;
}
.alert {
  width: 500px;
  height: 211px;
  background: #ffffff;
  -webkit-box-shadow: 0px 16px 30px 1px rgba(0, 0, 0, 0.08);
          box-shadow: 0px 16px 30px 1px rgba(0, 0, 0, 0.08);
  border-radius: 8px 8px 8px 8px;
  padding: 40px;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  text-align: left;
  z-index: 100;
}
.alert .title {
  font-size: 16px;
  font-weight: bold;
  color: #424242;
  line-height: 28px;
  margin-bottom: 9px;
}
.alert .title img {
  float: left;
  width: 28px;
  height: 28px;
  margin-right: 12px;
}
.alert .content {
  line-height: 25px;
  font-size: 14px;
  color: #666;
  padding-left: 40px;
  height: 63px;
}
.alert .btn {
  color: #ffffff;
  background-color: #ff7547;
  float: right;
  padding: 8px 19px;
  font-size: 14px;
  border-radius: 4px;
  cursor: pointer;
  -webkit-transition: 0.2s;
  transition: 0.2s;
}
.alert .btn:hover {
  opacity: 0.8;
}