* {
  padding: 0;
  margin: 0;
}

body {
  font-family: "Helvetica Neue",
    Helvetica,
    "PingFang SC",
    "Hiragino Sans GB",
    Arial,
    sans-serif;
  font-size: 30px;
  color: #333;
}

.container {
  width: 750px;
  margin: auto;
  overflow: hidden;
}

.top-banner,
.form-section,
.detail-link {
  width: 100%;
  overflow: hidden;
}

.top-banner {
  min-height: 360px;
  font-size: 0;
}

.top-banner img {
  width: 100%;
}

.form-section .form-main {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  box-sizing: border-box;
  padding: 60px 30px 50px;
}

.form-main label {
  position: relative;
  width: 100%;
  line-height: 70px;
  font-weight: 600;
  box-sizing: border-box;
  font-size: 2.6rem;
}

.form-main label.star-icon::before {
  content: '*';
  color: red;
  width: 50px;
  margin-right: 10px;
}

.form-main input {
  width: 100%;
  height: 80px;
  box-sizing: border-box;
  padding: 10px 20px;
  font-size: 24px;
  color: #666;
  outline: none;
  border: 1px solid #ccc;
}

.validate-code {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.validate-code .code-box {
  width: 180px;
  height: 80px;
  margin-left: 20px;
  background-color: #ccc;
}

.submit-btn {
  width: 100%;
  padding-top: 58px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.submit-btn input {
  width: 360px;
  height: 80px;
  background: #20b09f;
  outline: none;
  border: none;
  font-size: 36px;
  font-weight: 500;
  color: #fff;
}

.detail-link {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-bottom: 70px;
}

.detail-link a {
  font-size: 24px;
  font-weight: 400;
  color: #20b09f;
  text-decoration: none;
}