body, div, p, h1, h2, h3, h4, h5, h6 {
  margin: 0;
  padding: 0;
}

body, textarea, input, button {
  font-family: -apple-system,BlinkMacSystemFont,
    Helvetica Neue,PingFang SC,Microsoft YaHei,Source Han Sans SC,Noto Sans CJK SC,WenQuanYi Micro Hei,sans-serif;
  color: #292929;
  line-height: 1;
}

body {
  width: 100vw;
  overflow-x: hidden;
}

button, a {
  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

button:focus, a:focus {
  outline: 0;
  box-shadow: 0 0 3px #ff6633;
}


a {
  color: inherit;
  text-decoration: none;
}

strong {
  font-weight: bold;
}

img {
  display: block;
}

/* reset end */

.header {
  padding: 15px;
  position: relative;
}

.header h1 img {
  width: 115px;
  height: 30px;
}

.header .button {
  display: flex;
  width: 96px;
  height: 36px;
  justify-content: center;
  align-items: center;
  border-radius: 18px;
  filter: drop-shadow(1px 1px 2px rgba(0, 0, 0, 0.12));
  background: #EF4028;
  color: #fff;
  font-size: 17px;
  position: absolute;
  right: 15px;
  top: 50%;
  margin-top: -18px;
}

.nav {
  height: 50px;
  line-height: 50px;
  font-size: 17px;
  padding-left: 10px;
  display: none;
}

.nav a {
  padding: 0 5px;
  height: 50px;
  display: inline-block;
  margin: 0 10px;
  position: relative;
}

.nav a.current::after {
  content: '';
  height: 3px;
  width: 100%;
  position: absolute;
  bottom: 0;
  left: 0;
  background: #EF4028;
}

.slide {
  width: 100%;
  height: 0;
  padding-top: 91.733%;
  background: #ff6633 url('slide-mobile.jpg') no-repeat center center;
  background-size: cover;
  position: relative;
}

.slide .button {
  position: absolute;
  width: 27.5vw;
  height: 10vw;
  top: 41.25vw;
  left: 6.25vw;
}

.section-title {
  font-size: 25px;
  font-weight: 700;
  margin-top: 40px;
  padding-bottom: 20px;
  text-align: center;
}

.section-description {
  font-size: 14px;
  text-align: center;
  margin-top: -10px;
  padding-bottom: 20px;
}

.section-split {
  position: relative;
  margin-bottom: 40px;
}

.section-split::after {
  content: '';
  width: 24px;
  height: 4px;
  border-radius: 2px;
  background: #ef4028;
  position: absolute;
  bottom: 0;
  left: 50%;
  margin-left: -12px;
}

.xhs {
  width: 140px;
  height: 84px;
  display: block;
  margin: 0 auto;
}

.why {
  padding: 20px 15px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.why .item {
  width: 28.8vw;
}

.why .item img {
  width: 100%;
  height: 28.8vw;
}

.why .item p {
  font-size: 12px;
  text-align: center;
  padding: 8px 20px;
}

.brands {
  background: #f2f2f2;
  padding: 25px 0;
}

.brand-item {
  margin-top: 20px;
  padding: 0 15px;
}

.brand-title {
  font-size: 17px;
  padding: 0 0 10px 10px;
  position: relative;
  border-bottom: 0.5px solid #e0e0e0;
}

.brand-title::before {
  content: '';
  width: 4px;
  height: 17px;
  border-radius: 2px;
  background: #EF4028;
  position: absolute;
  left: 0;
  top: 0;
}

.brand-item img {
  width: 100%;
  margin-top: 20px;
}

.about-liuxiang {
  padding: 0 10px;
}

.about-liuxiang .statistics {
  width: 100%;
}

.more-about {
  display: flex;
  justify-content: space-between;
}

.more-about .item {
  width: 28.8vw;
}

.more-about .title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.more-about .content {
  line-height: 1.5;
  font-size: 12px;
  color: #5c5c5c;
}

.about-ads h4 {
  margin-top: 50px;
  font-size: 20px;
  text-align: center;
}

.about-ads .description {
  font-size: 14px;
  text-align: center;
  margin: 10px 0 20px;
}

.about-ads .imgs {
  padding: 0 15px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.about-ads .imgs img {
  width: 44.667vw;
  height: 84vw;
}

.about-ads .highlight {
  margin: 20px 15px 10px;
  height: 44px;
  background: #EF4028;
  line-height: 44px;
  color: #fff;
  font-weight: 700;
  border-radius: 4px;
  text-align: center;
}

.about-ads .sub-note {
  font-size: 11px;
  text-align: center;
  color: #8f8f8f;
}

.about-ads .brand-list {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 0 15px;
}

.about-ads .brand-list .item {
  width: 28.8vw;
  text-align: center;
}

.about-ads .brand-list .img {
  height: 45px;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
}

.about-ads .brand-list img {
  height: 30px;
}

.about-ads .brand-list .name {
  font-size: 12px;
  text-align: center;
  margin: 10px 0;
}

.about-ads .brand-list .label {
  display: inline-block;
  margin: 0 auto 20px;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 6px;
  border-radius: 2px;
}

.about-ads .brand-list .label.orange {
  color: #ff5c3c;
  background: #ffe7e2;
}

.about-ads .brand-list .label.blue {
  background: #d8e8ff;
  color: #3c8cff;
}

.about-ads .brand-list .label.purple {
  background: #eae3ff;
  color: #9471f8;
}

.contact {
  margin: 30px 15px 50px;
  padding-top: 50px;
  border-top: 1px solid #e0e0e0;
}

.contact .title {
  font-size: 25px;
  font-weight: 700;
  text-align: center;
}

.contact .description {
  font-size: 14px;
  text-align: center;
  margin: 10px 0 20px;
}

.contact .tel {
  margin: 0 auto 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 25px;
  color: #EF4028;
  font-weight: 700;
}

.contact .tel img {
  width: 20px;
  height: 20px;
  margin-right: 8px;
}

.contact .tel-description {
  margin-bottom: 30px;
  font-size: 14px;
  text-align: center;
}

.ec-form .item {
  margin-bottom: 10px;
}

.ec-form input {
  width: 100%;
  height: 44px;
  border: 1px solid #c4c4c4;
  border-radius: 22px;
  box-sizing: border-box;
  padding-left: 20px;
  font-size: 17px;
}

.ec-form button {
  width: 100%;
  height: 44px;
  box-sizing: border-box;
  color: #fff;
  background-color: #EF4028;
  border-radius: 22px;
  font-size: 20px;
}

.copyright {
  padding: 30px 15px 20px;
  background-color: #EF4028;
}

.copyright img {
  width: 143x;
  height: 37px;
  margin: 0 auto 30px;
}

.copyright .content {
  text-align: center;
  color: #fff;
  font-size: 11px;
  line-height: 1.2;
}

.copyright .content a {
  text-decoration: underline;
}