nav {
  backdrop-filter: blur(30px);
  background-color: rgba(208,229,251,0.5);
}
nav .navbar-brand span {
  color: #009cd6;
  line-height: 20px;
  font-size: 20px;
  font-weight: 500;
}
nav .nav-item {
  font-size: 15px;
}
.home_page {
  height: 100vh;
  background-color: #d0e5fb;
}
.home_page .container {
  padding: 30vh 0;
}
.home_page .container h2:nth-child(1) {
  font-size: 3rem;
  font-weight: bold;
}
.home_page .container h2:nth-child(2) {
  font-size: 2rem;
  font-weight: bold;
  color: #00adee;
}
.home_page .container h2:nth-child(2) span {
  color: #d0e5fb;
  background-color: #41cbff;
}
.home_page .container >.row>div>.row {
  height: 300px;
}
.home_page .container >.row>div>.row .btn-primary {
  color: #fff;
  background-color: #4d8df3;
  border-color: #4d8df3;
}
.home_page .container >.row>div>.row .btn-primary:hover {
  background-color: #2f7af1;
  border-color: #2f7af1;
}
.home_page .container >.row>div>.row .btn-success {
  background-color: #3abc70;
  border-color: #3abc70;
}
.home_page .container >.row>div>.row .btn-success:hover {
  background-color: #34a965;
  border-color: #34a965;
}
.home_page .container >.row>div>.row .btn-danger {
  background-color: #ff6745;
  border-color: #ff6745;
}
.home_page .container >.row>div>.row .btn-danger:hover {
  background-color: #dd4523;
  border-color: #dd4523;
}
.home_page .container >.row>div>.row .btn-primary:focus,
.home_page .container >.row>div>.row .btn-success:focus,
.home_page .container >.row>div>.row .btn-danger:focus {
  box-shadow: 0 0;
}
.home_page .container #exhi_img {
  background: url("../images/pc.jpg");
  background-size: contain;
  background-position: center center;
  background-repeat: no-repeat;
  height: 300px;
}
.home_page .container #exhi_img img {
  animation: move 3s infinite alternate;
  position: absolute;
  top: -15%;
  right: 0;
}


.intro_page {
  padding-top: 4rem;
}
.intro_page h2 span {
  color: #4185f4;
}
.intro_page h2+div {
  color: #4185f4;
  font-size: 30px;
  font-weight: 500;
  line-height: 10px;
  margin-bottom: 2rem;
}
.intro_page #exhi_img2 {
  animation: move 2s infinite alternate;
}
.intro_page .container .row .row .col>div {
  margin: 15px 0;
  padding: 1rem;
  vertical-align: center;
  border: 1px solid #d9eafc;
}
.intro_page .container .row .row .col>div div {
  font-size: 18px;
  text-align: center;
  padding-bottom: 0.5rem;
}
.intro_page .container .row .row .col>div p {
  font-size: 13px;
  text-align: center;
}


.faq_page {
  padding-top: 4rem;
}
.faq_page h2 span {
  color: #4185f4;
}
.faq_page h2+div {
  color: #4185f4;
  font-size: 30px;
  font-weight: 500;
  line-height: 10px;
  margin-bottom: 2rem;
}
.faq_page #exhi_img3 {
  animation: move 2s infinite alternate;
}
.faq_page .container .card {
  border-radius: 0;
  margin-bottom: 10px;
  border: none;
}
.faq_page .container .card .card-header {
  background-color: #deeefc;
  padding: 0;
  border: none;
}
.faq_page .container .card .btn {
  height: 52px;
  width: 100%;
  border: 0;
}
.faq_page .container .card .btn:hover {
  background-color: #4185f4;
}
.faq_page .container .card .btn:focus {
  box-shadow: 0 0;
}


.upgrade_page {
  padding-top: 4rem;
}
.upgrade_page h2 span {
  color: #4185f4;
}
.upgrade_page #exhi_img4 {
  animation: move 2s infinite alternate;
}
.upgrade_page .container .row .row .col>div {
  margin: 15px 0;
  padding: 1rem;
  vertical-align: center;
  border: 1px solid #d9eafc;
}
.upgrade_page .container .row .row .col>div div {
  font-size: 18px;
  text-align: left;
  padding-bottom: 0.5rem;
}
.upgrade_page .container .row .row .col>div p {
  font-size: 13px;
  text-align: left;
}


.introduce_page {
  padding-top: 4rem;
}
.introduce_page h2 span {
  color: #4185f4;
}
.introduce_page #exhi_img4 {
  animation: move 2s infinite alternate;
}
.introduce_page .container .row .row .col>div {
  margin: 15px 0;
  padding: 1rem;
  vertical-align: center;
  border: 1px solid #d9eafc;
}
.introduce_page .container .row .row .col>div div {
  font-size: 18px;
  text-align: left;
  padding-bottom: 0.5rem;
}
.introduce_page .container .row .row .col>div p {
  font-size: 13px;
  text-align: left;
}


@media (max-width: 768px) {
  .home_page .container {
    padding: 15vh 0;
  }
  .home_page .container h2:nth-child(1) {
    font-size: 2rem;
  }
  .home_page .container h2:nth-child(2) {
    font-size: 1.2rem;
  }
}
@media (min-width: 768px) {
  .home_page .container h2:nth-child(1) {
    font-size: 2.3rem;
  }
  .home_page .container h2:nth-child(2) {
    font-size: 1.6rem;
  }
}
@media (min-width: 992px) {
  .home_page .container h2:nth-child(1) {
    font-size: 3rem;
  }
  .home_page .container h2:nth-child(2) {
    font-size: 2rem;
  }
}
@-moz-keyframes move {
  to {
    transform: translateY(20px);
  }
}
@-webkit-keyframes move {
  to {
    transform: translateY(20px);
  }
}
@-o-keyframes move {
  to {
    transform: translateY(20px);
  }
}
@keyframes move {
  to {
    transform: translateY(20px);
  }
}
@-moz-keyframes fromL {
  from {
    transform: translateX(0%);
  }
}
@-webkit-keyframes fromL {
  from {
    transform: translateX(0%);
  }
}
@-o-keyframes fromL {
  from {
    transform: translateX(0%);
  }
}
@keyframes fromL {
  from {
    transform: translateX(0%);
  }
}