.container {
  padding: 0;
}
@media (min-width: 0) {
  .container {
    max-width: 350px;
  }
}
@media (min-width: 768px) {
  .container {
    max-width: 762px;
  }
}
@media (min-width: 1400px) {
  .container {
    max-width: 1302px;
  }
}

.text-muted {
  color: #343434 !important;
}

body {
  background: linear-gradient(0deg, #b4f2e7 0%, #1e86c1 100%);
}

.top-header {
  position: relative;
}
@media (min-width: 768px) {
  .top-header {
    position: sticky;
    top: -1px;
    z-index: 3;
    height: 61px;
  }
  .top-header.is-sticky .navbar {
    background: white !important;
    box-shadow: 0px 1px 0px rgba(64, 64, 62, 0.6), 0px 3px 3px rgba(0, 0, 0, 0.2);
  }
}
.top-header .navbar {
  background-color: transparent;
  padding: 0;
  margin: 0;
  height: 60px;
  width: 100%;
}
@media (max-width: 768px) {
  .top-header .navbar {
    background-color: white;
  }
}
.top-header .navbar__logo {
  width: 136px;
  height: auto;
}

.banner {
  position: relative;
  overflow: hidden;
  background: url(/img/bg_banner.png) no-repeat center 0%/100% auto;
}
.banner__title {
  color: white;
  font-weight: 800;
}
.banner-desc {
  position: absolute;
  width: 100%;
  text-align: center;
  bottom: 0;
}
.banner-desc__content {
  width: 780px;
  font-size: 16px;
  color: #343434;
  text-align: center;
  margin: 133px auto 30px auto;
  word-wrap: break-word;
}
@media (max-width: 768px) {
  .banner {
    width: 350px;
    margin: 0 auto;
    background: url(/img/m_bg_banner_moon.png) top 0 right 0/contain, url(/img/m_bg_banner_sign.png) top 0px left 0/contain;
    background-repeat: no-repeat;
  }
  .banner__title {
    font-size: 38px;
    width: 350px;
    margin: 266px auto 30px auto;
  }
  .banner-desc {
    position: relative;
    text-align: left;
  }
  .banner-desc__content {
    width: 100%;
    margin: 40px auto 30px auto;
  }
}
@media (min-width: 768px) {
  .banner {
    width: 100%;
    background: url(/img/bg_banner.png) no-repeat center 0%/834px auto, none;
    height: 424px;
  }
  .banner__title {
    font-size: 52px;
    width: 762px;
    margin: 59px auto;
  }
}
@media (min-width: 1400px) {
  .banner {
    width: 100%;
    background: url(/img/bg_banner.png) no-repeat center 0%/1440px auto, none;
    height: 585px;
  }
  .banner__title {
    width: 1302px;
    margin: 133px auto;
    font-size: 64px;
  }
}

.bottom-bg {
  position: relative;
  width: 100%;
  overflow: hidden;
}
@media (min-width: 0) {
  .bottom-bg {
    min-height: 683px;
    background: url(/img/bg_under_water.svg) no-repeat center -130px/1561px auto;
  }
}
@media (min-width: 768px) {
  .bottom-bg {
    min-height: 767px;
    background: url(/img/bg_under_water.svg) no-repeat center -130px/130% auto;
  }
}
@media (min-width: 1400px) {
  .bottom-bg {
    min-height: 1020px;
    background: url(/img/bg_under_water.svg) no-repeat center -270px/130% auto;
  }
}
.bottom-bg__clouds {
  position: absolute;
  width: 100%;
  height: 283px;
}
@media (min-width: 0) {
  .bottom-bg__clouds {
    background: url(/img/bg_cloud.svg) no-repeat center/663px 161px;
  }
}
@media (min-width: 768px) {
  .bottom-bg__clouds {
    background: url(/img/bg_cloud.svg) no-repeat center/828px 201px;
  }
}
@media (min-width: 1400px) {
  .bottom-bg__clouds {
    background: url(/img/bg_cloud.svg) no-repeat center/1165px 283px;
  }
}
.bottom-bg .feature {
  position: relative;
  z-index: 1;
}

.feature-showcase {
  position: relative;
  width: 1400px;
  height: 647px;
  overflow: visible;
}
@media (min-width: 768px) {
  .feature-showcase {
    width: 762px;
    margin-top: 100px;
  }
}
@media (min-width: 1400px) {
  .feature-showcase {
    width: 1302px;
    margin-top: 150px;
  }
}
.feature-showcase .feature-item {
  position: absolute;
  left: 0;
  top: 0;
  width: 217px;
  cursor: pointer;
  z-index: 1;
}
.feature-showcase .feature-item:not(:first-child)::after {
  display: block;
  position: absolute;
  content: " ";
  left: 15px;
  bottom: 21px;
  width: 183px;
  height: 205px;
  background: url(/img/feature_hover_light.svg) 0 0/100% 100% no-repeat;
  opacity: 0;
  transition: opacity 300ms ease;
}
@media (min-width: 768px) and (max-width: 1400px) {
  .feature-showcase .feature-item:not(:first-child)::after {
    width: 130px;
    left: 4px;
    height: 205px;
    bottom: -19px;
  }
}
.feature-showcase .feature-item:hover::after {
  opacity: 1;
}
.feature-showcase .feature-item__title {
  position: absolute;
  transform: skewY(330deg);
  font-weight: bold;
  color: black;
  left: 40px;
  top: -40px;
}
.feature-showcase .feature-item__img {
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
}
@media (min-width: 768px) {
  .feature-showcase .feature-item:first-child {
    width: 351px;
    height: 256px;
    left: 134px;
  }
}
@media (min-width: 1400px) {
  .feature-showcase .feature-item:first-child {
    width: 536px;
    left: 286px;
  }
}
@media (min-width: 768px) {
  .feature-showcase .feature-item:nth-child(2) {
    top: 208px;
    left: 60px;
    width: 142px;
  }
}
@media (min-width: 1400px) {
  .feature-showcase .feature-item:nth-child(2) {
    top: 361px;
    left: 175px;
    width: 217px;
  }
}
@media (min-width: 768px) {
  .feature-showcase .feature-item:nth-child(3) {
    left: 211px;
    top: 253px;
    width: 142px;
  }
}
@media (min-width: 1400px) {
  .feature-showcase .feature-item:nth-child(3) {
    left: 405px;
    top: 430px;
    width: 217px;
  }
}
@media (min-width: 768px) {
  .feature-showcase .feature-item:nth-child(4) {
    left: 349px;
    top: 221px;
    width: 142px;
  }
}
@media (min-width: 1400px) {
  .feature-showcase .feature-item:nth-child(4) {
    left: 615px;
    top: 381px;
    width: 217px;
  }
}
.feature-showcase .feature-mask {
  position: absolute;
  height: 200px;
  transition: all 800ms;
  padding-left: 50px;
  color: #343434;
  z-index: 0;
}
.feature-showcase .feature-mask__title {
  padding: 12px 0;
  white-space: nowrap;
  font-weight: 700;
  font-size: 36px;
}
@media (min-wdith: 768px) and (max-width: 1400px) {
  .feature-showcase .feature-mask__title {
    font-size: 24px;
  }
}
.feature-showcase .feature-mask__subtitle {
  font-size: 20px;
  font-weight: 600;
}
.feature-showcase .feature-mask.feature-mask-enter {
  opacity: 0;
  left: 50%;
  top: 100%;
}
.feature-showcase .feature-mask.feature-mask-leave-active {
  opacity: 0;
  left: 100%;
  top: 100%;
}
.feature-showcase .feature-mask .feature-inner {
  position: relative;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0) 100%);
  /* background: radial-gradient(68.02% 135.04% at 50% 20%, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0) 60%); */
  border: 2px solid currentColor;
  border-left: none;
  border-right: none;
}
.feature-showcase .feature-mask .feature-inner::after {
  position: absolute;
  top: -4px;
  right: -12px;
  content: " ";
  width: 8px;
  height: 8px;
  transform: rotate(45deg);
  transform-origin: top;
  background: currentColor;
}
.feature-showcase .feature-mask .feature-inner::before {
  position: absolute;
  content: " ";
  height: 2px;
  background: currentColor;
  width: 100px;
  transform: rotate(305deg);
  transform-origin: right;
  left: -100px;
  top: -2px;
}
.feature-showcase .feature-mask .feature-content {
  font-size: 16px;
  line-height: 20px;
}
.feature-showcase .feature-mask .feature-extra-list {
  margin: 4px 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}
.feature-showcase .feature-mask .feature-extra-list .feature-extra-item {
  padding: 0;
  line-height: 20px;
}
.feature-showcase .feature-mask .feature-extra-list .feature-extra-item__marker {
  display: inline-block;
  width: 12px;
  height: 12px;
  background: url("/img/rect_120.png") no-repeat;
  background-size: cover;
}
@media (min-width: 768px) {
  .feature-showcase .feature-mask {
    left: 480px;
    top: 10px;
  }
  .feature-showcase .feature-mask .feature-inner {
    width: 307px;
    padding: 12px 0;
  }
  .feature-showcase .feature-mask__title {
    font-size: 24px;
  }
}
@media (min-width: 1400px) {
  .feature-showcase .feature-mask {
    left: 822px;
    top: 60px;
  }
  .feature-showcase .feature-mask .feature-inner {
    width: 468px;
    padding: 12px 0;
  }
  .feature-showcase .feature-mask__title {
    font-size: 36px;
  }
}

/* for mobile version */
.feature-showcase-mobile {
  position: relative;
  overflow: hidden;
  width: 390px;
  margin: 50px auto;
}
.feature-showcase-mobile .feature-list {
  position: relative;
  height: 290px;
}
.feature-showcase-mobile .feature-list .feature-item {
  position: absolute;
  width: 100px;
  min-height: 92px;
  cursor: pointer;
}
.feature-showcase-mobile .feature-list .feature-item:first-of-type {
  left: -110px;
}
.feature-showcase-mobile .feature-list .feature-item:nth-of-type(2) {
  left: 0px;
}
.feature-showcase-mobile .feature-list .feature-item:nth-of-type(3) {
  width: 250px;
  top: 37px;
  left: calc(50% - 125px);
}
.feature-showcase-mobile .feature-list .feature-item:nth-of-type(4) {
  right: 0px;
}
.feature-showcase-mobile .feature-list .feature-item:last-of-type {
  right: -110px;
}
.feature-showcase-mobile .feature-list .feature-item__img {
  width: 100%;
  height: auto;
}
.feature-showcase-mobile__link-line {
  position: absolute;
  width: 2px;
  height: 154px;
  top: 105px;
  left: 50%;
  margin-left: -1px;
  background: #000;
}
.feature-showcase-mobile__link-line::after {
  position: absolute;
  bottom: 0;
  content: " ";
  width: 8px;
  height: 8px;
  transform: rotate(45deg);
  transform-origin: top;
  background: currentColor;
}

.mobile-feature-detail {
  transition: all 300ms;
  overflow: hidden;
}
.mobile-feature-detail__title {
  text-align: center;
  font-size: 36px;
  line-height: 54px;
  font-weight: 700;
}
.mobile-feature-detail__subtitle {
  font-size: 20px;
  text-align: center;
  font-weight: 600;
  color: #343434;
}
.mobile-feature-detail__content {
  font-size: 16px;
  line-height: 20px;
  text-align: center;
}
.mobile-feature-detail-left-enter {
  opacity: 0;
  transform: translate(-20%, 0);
}
.mobile-feature-detail-left-leave-active {
  position: absolute;
  opacity: 0;
  transform: translate(20%, 0);
}
.mobile-feature-detail-right-enter {
  opacity: 0;
  transform: translate(20%, 0);
}
.mobile-feature-detail-right-leave-active {
  position: absolute;
  opacity: 0;
  transform: translate(-20%, 0);
}

.footer {
  padding: 1em 0;
}