/* css reset */
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
dl,
dt,
dd,
ul,
ol,
li,
pre,
code,
form,
fieldset,
legend,
button,
input,
textarea,
th,
td {
  margin: 0;
  padding: 0;
}
body,
button,
input,
select,
textarea {
  font: 12px/1.5 Tahoma, Arial, "SimSun";
  font-family: "Microsoft YaHei";
}
input,
select,
button,
textarea {
  font-size: 100%;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: normal;
}
ol,
ul {
  list-style: none;
}
em,
i,
strong {
  font-style: normal;
  font-weight: normal;
}
fieldset,
img {
  border: 0;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
html,
body {
  width: 100%;
  height: 100%;
}
a {
  text-decoration: none;
}
a:hover {
  text-decoration: none;
}
.clear {
  clear: both;
}
.clearfix:after {
  content: "\200B";
  display: block;
  height: 0;
  clear: both;
}
.clearfix {
  *zoom: 1;
}
.left {
  float: left;
}
.right {
  float: right;
}

.btn {
  display: block;
  width: 273px;
  height: 78px;
  line-height: 78px;
  background-color: #3d86ff;
  border-radius: 2px;
  color: #ffffff;
  font-size: 30px;
}
.btn img {
  margin: 21px 12px 0 56px;
}
.btn:hover {
  background-color: #4fa2ff;
}
.btn:active {
  background-color: #2163dd;
}

.header {
  width: 100%;
  height: 660px;
  background: url(../img/bg.png) no-repeat top center;
  background-size: cover;
}
.header .top {
  width: 1167px;
  height: 38px;
  margin: 0 auto;
  padding-top: 24px;
}
.header .logo img {
  height: 38px;
}
.header .top .duba-logo {
  margin-top: 9px;
}
.nav-search {
  float: right;
  width: 600px;
  height: 40px;
}
.nav-search .nav {
  width: 360px;
}
.nav-search .nav-list {
  color: #3d4756;
}
.nav-search .nav .nav-item {
  float: left;
  width: 72px;
  line-height: 38px;
  text-align: center;
  font-size: 15px;
  color: #3d4756;
}
.nav-search .nav .nav-item:hover {
  color: #3f84f6;
}
.top-searchBox {
  position: relative;
  width: 230px;
}
.searchBar {
  width: 100%;
  height: 38px;
  position: relative;
  background-color: #fff;
}
.searchBar input {
  border: 1px solid #dedede;
  background-color: transparent;
  height: 38px;
  line-height: 38px;
  width: 160px;
  padding-left: 10px;
  font-size: 14px;
  color: #333;
  -webkit-transition: border-color 0.3s;
  transition: border-color 0.3s;
  position: absolute;
  left: 0;
  top: 0;
  box-shadow: 2px 2px 10px #dedede;
}

.searchBar input:hover {
  border-color: #b2b2b2;
}
.searchBar input:focus {
  border-color: #00ace9;
}
.searchBar button {
  width: 70px;
  height: 40px;
  position: absolute;
  right: 0;
  top: 0;
  display: inline-block;
  border: none;
  cursor: pointer;
  background-color: #2f82e9;
  color: #fff;
  padding: 0 5px;
}
.searchBar button:hover {
  background-color: #3b8df2;
}
.searchBar button:active {
  background-color: #2579e1;
}
.searchBar button:before {
  font-size: 18px;
}
.searchBar button img {
  float: left;
  margin: 2px 5px 0 0;
}
.searchBar button .search-text {
  float: left;
  font-size: 16px;
}

.banner {
  width: 1250px;
  margin: 79px auto 0;
  color: #3d4756;
}
.banner .title {
  height: 70px;
  margin-bottom: 36px;
}
.banner .logo {
  width: 70px;
}
.banner h1 {
  font-size: 40px;
  line-height: 70px;
  font-weight: 700;
  margin-left: 13px;
}
.banner .text .card {
  margin: 0px 0 0 6px;
}
.banner .desc-list .desc-item {
  width: 100%;
  height: 22px;
  margin-bottom: 25px;
}
.banner .desc-item .icon {
  width: 22px;
  height: 22px;
  margin-right: 10px;
  background-color: #3d86ff;
  border-radius: 11px;
}
.banner .desc-item .hook {
  position: relative;
  width: 4px;
  height: 9px;
  border-radius: 1px;
  border-bottom: 2px solid;
  border-right: 2px solid;
  border-color: #fff;
  transform: rotate(45deg);
  left: 8px;
  top: 4px;
}
.banner .desc-item p {
  font-size: 20px;
  line-height: 22px;
  color: #3d4756;
}

.banner .img-btn {
  padding-top: 21px;
}
.banner-img {
  width: 615px;
  height: 355px;
  margin-top: 40px;
}
.banner-box {
  width: 519px;
  padding-left: 60px;
}
.banner .btn {
  position: relative;
  width: 328px;
  height: 94px;
  line-height: 94px;
  background-color: #3d86ff;
  margin: 33px 0 16px 0;
  border-radius: 8px;
}

.banner-box .key-word {
  width: 190px;
  height: 28px;
  line-height: 28px;
  font-size: 26px;
  font-weight: 400;
  text-align: center;
  margin: 27px 0 60px 0;
}
.banner-box .key-word img {
  width: 28px;
  margin-right: 4px;
}

.btn_icon {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  margin: 25px 10px 0 75px;
}
.btn_icon::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  transform: scale3d(0.9, 0.9, 1);
  transition: box-shadow 0.3s, transform 0.3s;
  box-shadow: inset 0 0 0 3px #fff;
}

.arrow-down {
  position: relative;
  width: 20px;
  height: 18px;
  z-index: 1;
  margin: 13px 0 0 12px;
}
.arrow-down::before,
.arrow-down::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}
.arrow-down::before {
  width: 3px;
  height: 20px;
  background-color: #fff;
}
.arrow-down::after {
  width: 11px;
  height: 11px;
  border-right: 3px solid;
  border-bottom: 3px solid;
  border-color: #fff;
  transform: translateX(-50%) rotate(45deg);
}
.banner .btn:hover {
  text-decoration: none;
  background-color: #4fa2ff;
}
.banner .btn:hover .btn_icon::before {
  box-shadow: inset 0 0 0 35px #fff;
  transform: scale3d(1, 1, 1);
}
.banner .btn:hover .arrow-down::before {
  background-color: #4fa2ff;
}
.banner .btn:hover .arrow-down::after {
  border-color: #4fa2ff;
}

.banner .btn:active {
  text-decoration: none;
  background-color: #2163dd;
}
.banner .btn:active .arrow-down::before {
  background-color: #2163dd;
}
.banner .btn:active .arrow-down::after {
  border-color: #2163dd;
}

.banner .btn .btn_text {
  position: relative;
  font-size: 30px;
  font-weight: 600;
}
.banner .tip {
  color: #79879a;
  padding-top: 0;
  font-size: 14px;
  padding-left: 18px;
  margin: 0 0 45px 0;
}
.keyword-list {
  width: 100%;
  height: 260px;
  background: url(../img/keylist.png) repeat-x;
}

.keyword-list ul {
  width: 880px;
  margin: 0 auto;
  text-align: center;
}
.keyword-list .keyword-item {
  float: left;
  width: 220px;
  height: 260px;
  font-size: 18px;
  color: #3d4756;
  position: relative;
  top: 0;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -ms-transition: all 0.3s;
}
.keyword-list .keyword-item:hover {
  position: relative;
  top: -10px;
}
.keyword-list .keyword-item img {
  margin-bottom: 20px;
}

.main {
  width: 1112px;
  margin: 0 auto;
}
.img-list {
  width: 1112px;
  height: 360px;
  margin: 76px auto 124px;
  text-align: center;
}
.img-list li {
  float: left;
  width: 460px;
  margin: 0 48px;
}

.img-list li .desc {
  width: 460px;
  min-height: 50px;
  line-height: 36px;
  margin: 0 0;
  font-weight: 400;
  font-size: 38px;
  color: #3d4756;
  margin-bottom: 23px;
}
.img-list li img {
  width: 463px;
  height: 280px;
}

.downType {
  width: 100%;
  height: 124px;
  text-align: center;
  margin-bottom: 60px;
  display: none;
}
.common-btn {
  height: 120px;
  width: 50%;
  text-align: center;
}
.common.btn {
  position: relative;
  width: 269px;
  height: 74px;
  line-height: 74px;
  color: #3f84f6;
  background-color: #fff;
  border: 2px solid;
  border-color: #3f84f6;
  cursor: pointer;
  margin: 0 auto;
  border-radius: 8px;
}
.common.btn .btn_icon {
  margin: 15px 10px 0 48px;
}
.common.btn .btn_icon::before {
  box-shadow: inset 0 0 0 2px #3f84f6;
}
.common.btn .arrow-down::before {
  background-color: #3f84f6;
}
.common.btn .arrow-down::after {
  border-color: #3f84f6
}
.downType .common:hover {
  color: #ffff;
  background-color: #4fa2ff;
}
.common.btn:hover .btn_icon::before, .common.btn:active .btn_icon::before {
  box-shadow: inset 0 0 0 2px #fff;
}
.common.btn:hover .arrow-down::before, .common.btn:active .arrow-down::before{
  background-color: #fff;
}
.common.btn:hover .arrow-down::after, .common.btn:active .arrow-down::after {
  border-color: #fff
}
.downType .common:active {
  color: #fff;
  background-color: #2163dd;
}
.downType .tip {
  line-height: 36px;
  color: #79879a;
  font-size: 18px;
  margin-top: 10px;
}

.downType .safeType {
  width: 50%;
  text-align: center;
}
.downType .safeType .safe {
  height: 78px;
  line-height: 78px;
  margin: 0 auto;
  border-radius: 8px;
}

.fix {
  width: 100%;
  height: 50px;
  position: fixed;
  bottom: 0;
  padding: 20px 0;
  border-top: 1px solid #e4e4e4;
  background-color: #fff;
  z-index: 100;
}
.fix .fix-box {
  position: relative;
  width: 1019px;
  margin: 0 auto;
}
.product-logo {
  position: absolute;
  line-height: 50px;
  text-align: center;
}
.product-logo img {
  width: 48px;
  height: 48px;
}
.product-logo i {
  font-size: 24px;
  color: #4c4c4c;
  line-height: 48px;
  margin-left: 14px;
}
.fix-box .doc {
  clear: both;
  position: absolute;
  width: 100%;
  left: 0px;
  font-size: 26px;
  line-height: 50px;
  font-weight: 700;
  text-align: center;
}
.fix .at-once {
  position: absolute;
  right: 0;
  display: block;
  width: 181px;
  height: 50px;
  border-radius: 8px;
  color: #fff;
  background-color: #3f84f6;
}
.fix .at-once:hover {
  background-color: #4fa2ff;
}
.fix .at-once:active {
  background-color: #2163dd;
}
.fix .at-once .arrow-down {
  margin: 14px 10px 0 30px;
}
.fix .at-once .arrow-down::before {
  height: 16px;
}
.fix .at-once .arrow-down::after {
  width: 9px;
  height: 9px;
}
.fix .at-once i {
  font-size: 20px;
  line-height: 50px;
}
.footer {
  width: 100%;
  height: 60px;
  line-height: 30px;
  text-align: center;
  padding-bottom: 100px;
  font-size: 14px;
  color: #999;
}

.alert-box {
  display: none;
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0px;
  left: 0px;
  text-align: center;
  background-color: rgba(0, 0, 0, 0.3);
}
.alert-wrapper {
  width: 460px;
  height: 249px;
  margin: 0 auto;
  top: 50%;
  margin-top: -115px;
  position: relative;
  background-color: #fff;
  border-radius: 6px;
  z-index: 100;
  box-shadow: 1px 2px 3px #c7c6c6;
  color: #3d3d3d;
  font-size: 20px;
}
.alertTop {
  width: 100%;
  height: 56px;
  border-bottom: 1px solid #eee;
  font-size: 22px;
}
.alertTop .topTitle {
  float: left;
  padding-left: 20px;
  line-height: 60px;
}
.alertTop .topClose {
  float: right;
  padding: 10px 20px;
  font-size: 26px;
  cursor: pointer;
}
.alertTop .topClose:hover {
  color: #3f84f6;
}
.alertMain {
  padding-top: 15px;
}
.alertMain .title {
  text-align: left;
  padding-left: 25px;
  line-height: 28px;
}
.alertMain .little {
  font-size: 16px;
  text-align: left;
  color: #e9827d;
}
.alertMain .alert-btn a {
  float: left;
  width: 194px;
  height: 40px;
  line-height: 40px;
  border: 1px solid #eee;
  margin: 20px 0 0 23px;
  color: #3f84f6;
  border-radius: 8px;
}
.alertMain .alert-btn a:hover {
  background-color: #3f84f6;
  text-decoration: none;
  color: #fff;
  border: 1px solid #fff;
}
.alertMain .alert-btn .safeBtn {
  color: #3f84f6;
  border: 1px solid;
  border-color: #3f84f6
}

.fix .checkBottomBtn {
  cursor: pointer;
  display: none;
}

.tips {
  position: fixed;
  width: 301px;
  height: 227px;
  bottom: 120px;
  right: 113px;
  display: none;
}
.tips .close {
  position: absolute;
  top: 5px;
  right: 10px;
  width: 20px;
  height: 20px;
  color: #666;
  font-size: 20px;
  line-height: 20px;
  text-align: center;
  cursor: pointer;
}
.tips img {
  width: 301px;
  height: 227px;
}