.w120 {
  width: 1400px;
  margin: 0 auto;
}
@font-face {
  font-family: Source Han Sans CN;
  src: url(../font/SourceHanSansCN-Regular.ttf);
}
.wrapper {
  width: 100%;
  background-color: #fff;
}
.wrapper .navbar {
  width: 100%;
  height: 65px;
  box-shadow: 0px 1px 5px 0px rgba(87, 87, 87, 0.18);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  background-color: #fff;
}
.wrapper .navbar .nav-content {
  display: flex;
  height: 100%;
  align-items: center;
}
.wrapper .navbar .nav-content .logo {
  height: 70%;
}
.wrapper .navbar .nav-content .logo img {
  height: 100%;
}
.wrapper .navbar .nav-content .nav-list {
  display: flex;
  align-items: center;
  height: 100%;
  margin-left: 20%;
}
.wrapper .navbar .nav-content .nav-list li {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  margin-right: 42px;
}

.wrapper .navbar .nav-content .nav-list .active::after {
  position: absolute;
  content: "";
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: #0052d9;
}
.wrapper .navbar .nav-content .nav-list .active a {
  color: #0052d9;
}
.wrapper .navbar .nav-content .nav-list li a {
  font-size: 18px;
  font-weight: 600;
}
.wrapper .navbar .download {
  background: #0052d9;
  width: 120px;
  height: 65px;
  line-height: 65px;
  text-align: center;
  color: #fff;
  position: absolute;
  right: 0;
  top: 0;
  font-weight: 600;
  font-size: 20px;
}

/* Hero — centered intro */
.about-hero {
  display: flex;
  align-items: center;
  height: 100vh;
  background: #fff;
  background: url(../images/xiniu_d_1.png) no-repeat center bottom;
  background-size: cover;
}
.about-hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 920px;
}
.about-hero-title {
  font-size: 45px;
  font-weight: 700;
  color: #313131;
  line-height: 1.3;
  margin-bottom: 16px;
}
.about-hero-subtitle {
  font-size: 30px;
  font-weight: 700;
  color: #313131;
  margin-bottom: 40px;
}

.about-hero-desc {
  font-size: 22px;
  line-height: 1.85;
  color: #aaaaaa;

  margin-bottom: 60px;
}
.about-hero-btn {
  display: inline-block;
  padding: 12px 60px;
  background: linear-gradient(90deg, #015aeb 0%, #4a8dff 100%);

  color: #fff;
  font-size: 20px;
  font-weight: 600;
  border-radius: 2px;
  transition: background 0.2s ease;
}
.about-hero-btn:hover {
  background: linear-gradient(90deg, #015aeb 0%, #015aeb 100%);
}