:root {
  --telegram-blue: #1d98dc;
  --telegram-blue-dark: #0e8ed4;
  --link-blue: #0088cc;
  --border: #e8e8e8;
  --text: #383a3b;
  --muted: #67696a;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #fff;
}

body {
  min-height: 100%;
  margin: 0;
  background: #fff;
  color: var(--text);
  font: 12px/18px "Lucida Grande", "Lucida Sans Unicode", Arial, Helvetica, Verdana, sans-serif;
}

a {
  color: var(--link-blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button {
  font: inherit;
}

.td-page-head {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(25px);
}

.td-navbar-inner {
  border-bottom: 1px solid var(--border);
}

.td-navbar {
  width: min(1170px, 100%);
  height: 50px;
  margin: 0 auto;
  padding: 0 15px;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
}

.td-nav {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
}

.td-nav > li {
  position: relative;
  display: flex;
  align-items: stretch;
}

.td-nav a,
.lang-select summary {
  position: relative;
  min-height: 50px;
  padding: 15.5px 15px;
  display: flex;
  align-items: center;
  color: var(--link-blue);
  line-height: 17px;
  cursor: pointer;
}

.td-nav a::after,
.lang-select summary::after {
  content: "";
  position: absolute;
  right: 4px;
  bottom: -1px;
  left: 4px;
  display: block;
  height: 3px;
  border-radius: 2px 2px 0 0;
  background: #179cde;
  opacity: 0;
  transform: scaleX(.3) scaleY(0);
  transform-origin: bottom;
  transition: opacity .2s ease-in-out, transform .2s ease-in-out;
}

.td-nav .active a::after,
.td-nav a:hover::after,
.lang-select details[open] summary::after,
.lang-select summary:hover::after {
  opacity: 1;
  transform: scaleX(1) scaleY(1);
}

.td-nav a:hover,
.lang-select summary:hover {
  text-decoration: none;
}

.twitter-link::before {
  content: "";
  width: 16px;
  height: 13px;
  margin-right: 7px;
  display: inline-block;
  background: currentColor;
  clip-path: polygon(100% 9%, 89% 26%, 89% 36%, 83% 36%, 80% 50%, 71% 70%, 54% 84%, 33% 91%, 13% 90%, 29% 80%, 18% 78%, 7% 70%, 18% 69%, 5% 55%, 17% 58%, 8% 37%, 27% 47%, 39% 22%, 57% 15%, 73% 19%, 85% 8%, 82% 20%);
}

.lang-select details {
  position: relative;
}

.lang-select summary {
  list-style: none;
  gap: 6px;
}

.lang-select summary::-webkit-details-marker {
  display: none;
}

.lang-select summary::before {
  content: "";
  width: 16px;
  height: 16px;
  display: inline-block;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  box-shadow: inset 5px 0 0 rgba(0, 136, 204, .12), inset -5px 0 0 rgba(0, 136, 204, .12);
}

.lang-menu {
  position: absolute;
  top: 50px;
  right: 0;
  z-index: 30;
  width: 210px;
  max-height: calc(100vh - 70px);
  overflow: auto;
  margin: 0;
  padding: 0;
  list-style: none;
  background: #fff;
  border: 1px solid rgba(29, 92, 123, .3);
  box-shadow: 0 1px 1px rgba(20, 60, 83, .1);
}

.lang-menu a {
  min-height: 0;
  padding: 8px 18px;
  font-size: 13px;
  line-height: 18px;
}

.lang-menu a::after {
  display: none;
}

.lang-menu a:hover {
  color: #fff;
  background: #1e98d4;
}

.td-page-container {
  width: 100%;
  padding-top: 50px;
}

.td-content-wrap {
  width: 420px;
  margin: 0 auto;
  padding-bottom: 1px;
  font-size: 16px;
}

.td-screenshot {
  width: 100%;
  padding-top: 58%;
  margin-top: 48px;
  background: url("../picture/td_laptop.png") 50% 0 / contain no-repeat;
}

.td-title-link,
.td-title-link:hover {
  text-decoration: none;
}

.td-content-title {
  margin: 32px 0 14px;
  color: var(--text);
  font-size: 28px;
  font-weight: normal;
  letter-spacing: 0;
  line-height: 1.1;
  text-align: center;
}

#td-about-tdesktop {
  margin: 14px 10px 24px;
  color: var(--muted);
  font: 300 17px/148% "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Light", Helvetica, Arial, Verdana, sans-serif;
  text-align: center;
}

.td-download-wrap,
.td-download-wrap-low,
.td-download-add-wrap {
  width: 680px;
  margin-right: -130px;
  margin-left: -130px;
  text-align: center;
}

.td-download-wrap-low {
  margin-bottom: 30px;
}

.td-download-add-wrap {
  margin-bottom: 10px;
}

.td-btn-hidden,
.td-all-shown .td-show-all-platforms {
  display: none;
}

.td-all-shown span.td-btn-hidden {
  display: inline;
}

.td-all-shown div.td-btn-hidden {
  display: block;
}

.td-download-btn-wrap {
  display: inline-block;
  vertical-align: top;
}

.td-download-btn,
.td-download-add {
  text-align: center;
}

.td-download-btn {
  min-width: 266px;
  margin: 5px 10px;
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 30px;
  background: var(--telegram-blue);
  color: #fff;
  font-size: 15px;
  font-weight: normal;
  line-height: 2;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}

.td-download-btn::before {
  content: "";
  width: 18px;
  height: 18px;
  display: inline-block;
  flex: 0 0 auto;
  background: url("data:image/svg+xml,%3Csvg%20width%3D%2218%22%20height%3D%2218%22%20viewBox%3D%220%200%2018%2018%22%20fill%3D%22none%22%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%3E%3Cpath%20d%3D%22M9%202.25V11.2M9%2011.2L5.25%207.45M9%2011.2L12.75%207.45M4%2014.75H14%22%20stroke%3D%22white%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22/%3E%3C/svg%3E") center / contain no-repeat;
}

.td-download-btn:hover {
  background: var(--telegram-blue-dark);
  color: #fff;
  text-decoration: none;
}

.td-download-btn:focus-visible,
.td-download-add:focus-visible,
.td-nav a:focus-visible,
.lang-select summary:focus-visible {
  outline: 2px solid rgba(29, 152, 220, .5);
  outline-offset: 2px;
}

.td-download-btn-wrap .td-download-btn,
.td-download-btn-wrap .td-download-add {
  display: flex;
}

.td-download-btn-wrap .td-download-add {
  margin-top: 10px;
}

.td-download-add {
  min-width: 256px;
  margin: 5px 10px;
  padding: 0 15px 20px;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--link-blue);
  cursor: pointer;
}

.td-download-add a {
  color: inherit;
}

.td-download-divider {
  margin: 0 4px;
  color: #777;
  font-size: 9px;
  vertical-align: text-bottom;
}

.td-about-license {
  margin: 50px 0 30px;
  color: var(--muted);
  font-size: 14px;
  line-height: 170%;
  text-align: center;
}

@media (max-width: 640px) {
  .td-navbar {
    padding: 0;
  }

  .td-nav a,
  .lang-select summary {
    padding-right: 11px;
    padding-left: 11px;
    font-size: 14px;
  }

  .hide-small {
    display: none !important;
  }

  .td-content-wrap {
    width: auto;
    margin: 0 20px;
    font-size: 14px;
  }

  .td-screenshot {
    margin-top: 26px;
  }

  .td-content-title {
    margin-top: 21px;
    margin-bottom: 10px;
    font-size: 22px;
  }

  #td-about-tdesktop {
    margin: 10px 15px 24px;
    font-size: 16px;
  }

  .td-download-wrap,
  .td-download-wrap-low {
    width: min(320px, 100%);
    margin-right: auto;
    margin-left: auto;
  }

  .td-download-add-wrap {
    width: min(280px, 100%);
    margin-right: auto;
    margin-left: auto;
  }

  .td-download-btn,
  .td-download-add {
    min-width: 0;
    width: 100%;
    max-width: 280px;
    margin-right: auto;
    margin-left: auto;
  }

  .td-about-license {
    font-size: 12px;
  }
}

@media (max-width: 360px) {
  .td-nav a,
  .lang-select summary {
    padding-right: 8px;
    padding-left: 8px;
    font-size: 13px;
  }

  #td-about-tdesktop {
    font-size: 14px;
  }
}