html, body, .pages, .page, .page > * {
  height: 100%; }

.troubles {
  clear: both; }
  .troubles .trouble {
    float: left;
    box-sizing: border-box;
    width: 50%;
    height: 110px;
    border-style: solid;
    border-color: #D8D8D8;
    border-width: 0 1px 1px 0; }
    .troubles .trouble:nth-child(2n) {
      border-width: 0 0 1px 0; }
    .troubles .trouble .icon {
      display: block;
      width: 54px;
      height: 54px;
      margin: 16px auto auto; }
    .troubles .trouble .type {
      margin-top: 10px;
      height: 16px;
      line-height: 16px;
      color: #676E76;
      font-size: 11px;
      text-align: center; }

.sub-troubles {
  display: none; }
  .sub-troubles .sub-trouble {
    display: block;
    position: relative;
    height: 60px;
    margin: 0 15px;
    color: #676E76;
    box-sizing: border-box;
    border-bottom: 1px solid #D8D8D8; }
    .sub-troubles .sub-trouble .text {
      position: relative;
      line-height: 150%;
      top: 50%;
      -webkit-transform: translateY(-50%);
      font-size: 14px; }
    .sub-troubles .sub-trouble input[type=radio] {
      position: absolute;
      visibility: hidden; }

.buttons {
  box-sizing: border-box;
  position: fixed;
  height: 68px;
  padding: 12px 15px;
  width: 100%;
  bottom: 0;
  left: 0;
  border-top: 1px solid #CDCDCD; }
  .buttons .button {
    float: left;
    display: block;
    text-decoration: none;
    box-sizing: border-box;
    color: #676E76;
    font-size: 14px;
    height: 44px;
    line-height: 44px;
    width: 50%;
    border: 1px solid #CDCDCD;
    text-align: center;
    -webkit-user-select: none;
    -webkit-appearance: none; }
    .buttons .button:active {
      background: #F9F9F9; }
    .buttons .button:first-child {
      border-radius: 22px 0 0 22px;
      border-right: none; }
    .buttons .button:last-child {
      border-radius: 0 22px 22px 0; }
    .buttons .button#btn-back {
      width: 100%;
      border-radius: 22px;
      border-right: 1px solid #CDCDCD; }

.solution {
  display: none; }
  .solution .article {
    height: 100%;
    color: #676E76;
    margin: 0 15px;
    font-size: 14px; }
    .solution .article .title {
      border-bottom: 1px solid #D8D8D8;
      color: #676E76;
      padding-left: 25px;
      height: 36px;
      line-height: 36px;
      font-size: 14px;
      background: url(../images/bg-article-title.png) no-repeat left center;
      background-size: 15px 15px; }
    .solution .article p {
      margin: 0;
      padding: 0; }
    .solution .article img {
      display: block;
      max-width: -webkit-calc(100% - 40px);
      margin: 35px auto; }
    .solution .article .content {
      word-break: break-all;
      box-sizing: border-box;
      line-height: 21px;
      margin: 10px 0;
      height: -webkit-calc(100% - 125px);
      overflow-y: auto; }