.header {
  top: 0;
  position: fixed;
  z-index: 2;
  width: 100%;
  height: 70px;
  background: rgba(255, 255, 255, 0.2)
    linear-gradient(318deg, #ffc249 0%, #fede35 100%);
  backdrop-filter: blur(4px);
}

.logo {
  float: left;
  width: 130px;
  height: 70px;
}

.logo h1 {
  position: relative;
  display: inline-block;
  font-size: 0;
  line-height: 70px;
  margin-left: 130px;
  width: 100%;
  height: 100%;
}

.logo a {
  position: absolute;
  display: inline-block;
  width: 100%;
  height: 50%;
  font-size: 0;
  background-image: url(/images/logo.png);
  background-repeat: no-repeat;
  top: 50%;
  margin-top: -15px;
  background-size: 70%;
}

.nav ul {
  float: left;
  margin: 0 0 0 225px;
  text-align: center;
}

.nav li:first-child {
  width: 110px;
}

.nav li {
  float: left;
  padding: 0 29px;
}

.nav li a {
  font-size: 18px;
  line-height: 70px;
  font-weight: 400;
  color: #282828;
}
.nav li div {
  width: 52px;
  height: 8px;
  background: #282828;
  border-radius: 4px;
  margin: -8px auto -8px;
}

.nav li:first-child a {
  font-weight: bold;
}

.nav li:hover {
  background-color: #ffdd64;
}

.nav li:hover a {
  font-weight: bold;
}

/* ±êÌâ */
.title {
  font-size: 36px;
  font-weight: 600;
  color: #2d3e50;
  line-height: 36px;
}