.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    line-height: 2;
}

/* 头部标题 */
h1.title {
  margin-bottom: 20px;
  font-size: 48px;
  font-weight: 600;
  color: #0f172a;
  text-align: center;
}

h2{
  margin-bottom: 20px;
  font-size: 24px;
  font-weight: 600;
  color: #0f172a;
}

h3{
  margin-top: 20px;
  margin-bottom: 10px;
  font-size: 18px;
  font-weight: 600;
  color: #0f172a; 
}

.banner {
  margin-bottom: 20px 0;
}

/* 二维码 */
.qr .qrcode_title {
  font-size: 18px;
  margin-bottom: 30px;
}

.qr .link {
    color: #063F90;
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: #063F90;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px
}

.qr .qrcodes {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 150px;
}

.qr  .qrcodes .code_item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 内容 */
.box {
  margin: 40px 0;
  padding: 40px;
  box-shadow: 0 0 32px rgba(0,0,0,.1);
  border-color: #232f3e;
  border-radius: 10px;
  background-color: #fff;
}


.steps {
  display: flex;
  justify-content: center;
  align-items: center;
}

.steps .step_item {
  width: 20%;
  height: 260px;
  margin-right: 20px;
  border-radius: 8px;
  box-shadow: 0 0 6px rgba(0,0,0,.1);
  border-color: #232f3e;
  background-color: #fff;
}

.step_item .top {
  display: flex;
  justify-content: right;
  padding-bottom: 12px;
}

.step_item .top .link{ 
  display: flex;
  align-items: center;
  justify-content: center;
  width: 88px;
  height: 36px;
  color:#fff;
  font-size: 14px;
  background: url('../images/join/stepbg.png') center center/100% 100% no-repeat,url('../images/join/stepbg.png') center center/100% 100% no-repeat
}

.step_item .title{ 
  padding: 15px;
  font-size: 16px;
  line-height: 24px;
  text-align: left;
}

.step_item .desc{ 
  padding: 0 15px;
  font-size: 12px;
  line-height: 24px;
}