a,
h1,
h2,
h3,
h4,
h5,
h6 {
  color: #212529;
  margin-bottom: 0;
}

p {
  color: #212529;
}

a:hover,
a:active {
  color: #1d707d;
}

.btn-link {
  color: #1d707d;
}

.btn-outline-dark {
  border: 1px solid #343a40;
  height: 40px;
  line-height: 40px;
  font-size: 14px;
  font-weight: normal;
  padding: 0 14px;
}

body {
  overflow-x: hidden;
}

.body-fixed-header {
  padding-top: 110px;
}

.banner {
  height: calc(100vh - 110px);
  text-align: center;
  overflow: hidden;
}
.banner iframe {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
@media (min-aspect-ratio: 16/9) {
  .banner iframe {
    /* height = 100 * (9 / 16) = 56.25 */
    height: 56.25vw;
  }
}
@media (max-aspect-ratio: 16/9) {
  .banner iframe {
    /* width = 100 / (9 / 16) = 177.777777 */
    width: 177.78vh;
  }
}
.banner .overlay {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  opacity: 0.7;
  background-image: repeating-linear-gradient(45deg, black 0px, #2a2a2a 5px, white 5px, white 5px);
}
.banner .banner-text {
  padding: 20px;
  margin: 0;
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
.banner .banner-text h3,
.banner .banner-text p {
  color: #fff !important;
}
.banner .banner-text h3 {
  font-size: 46px;
}
.banner .banner-text p {
  margin-top: 30px;
  font-size: 20px;
}
.banner .banner-buttons {
  margin-top: 50px;
}
.banner .banner-button {
  border: 1px solid #fff;
}
.banner .banner-button.btn-light {
  color: #212529;
  background-color: #fff;
  background-image: none !important;
}

.section-detail .content {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}
.section-detail .step-item {
  background-color: #f1f3f5;
  height: 100%;
  padding: 40px;
  border-radius: 10px;
  text-align: center;
}
.section-detail .step-title {
  margin: 30px 0 20px;
}

.section-custom-solution {
  text-align: center;
}
.section-custom-solution .carousel-indicators-item {
  background-color: #a4a4a4;
}
.section-custom-solution .carousel-indicators-item.active {
  background-color: #212529;
}
.section-custom-solution .custom-content {
  max-width: 1000px;
  margin: 0 auto;
}
.section-custom-solution .title h4 {
  font-size: 42px;
  font-weight: 700;
}

.section-working-process .title h4 {
  font-size: 42px;
  font-weight: 700;
}
.section-working-process .title h5 {
  font-size: 24px;
}
.section-working-process .step-item {
  background-color: #f1f3f5;
  height: 100%;
  padding: 40px;
  border-radius: 10px;
  text-align: center;
}
.section-working-process .step-order {
  width: 40px;
  height: 40px;
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  border-radius: 50%;
  font-size: 24px;
  background-color: #1d707d;
  color: #ffffff;
}
.section-working-process .step-title {
  margin: 30px 0 20px;
}