html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
 text-align:justify;
}
.fb{
    font-weight:bold;
}
.header {
    background-color: #316cf4;
    padding: 15px 35px 15px 35px;
    text-align: center;
}

.details {
    background-color: #fff;
    padding: 15px 20px 5px;
    -webkit-box-shadow: 0px 0px 36.8px 9.2px rgb(16 37 65 / 10%);
    box-shadow: 0px 0px 36.8px 9.2px rgb(16 37 65 / 10%);
}

@media (min-width: 768px) {
    .banner {
        position: sticky;
        top: 0;
        z-index: 1020;
    }
}

/* ÊÖ»ú¶ËÑùʽ */
@media (max-width: 767px) {
    .banner {
        position: relative;
        width: 100%;
    }
}