header {
  text-align: center;
  background: linear-gradient(#0052a12e, #0052a112);
  overflow: hidden; }
  header .title {
    padding: 90px 0; }
    header .title h1 {
      font-size: 40px;
      font-weight: bold; }
    header .title p {
      font-size: 18px;
      margin-top: 22px; }
      header .title p a {
        color: var(--blue); }

main .main-content {
  padding: 0 50px; }
  main .main-content .tab {
    display: flex;
    margin: 35px 0; }
    main .main-content .tab .tab-links {
      width: 30%; }
      main .main-content .tab .tab-links .tab-links__list {
        width: 80%;
        background-color: #F9F9F9;
        padding: 20px 0 20px 10px; }
        main .main-content .tab .tab-links .tab-links__list li {
          line-height: 50px;
          color: #666;
          font-size: 17px; }
          main .main-content .tab .tab-links .tab-links__list li:hover {
            color: var(--blue); }
          main .main-content .tab .tab-links .tab-links__list li .menu-item-icon {
            width: 16px;
            height: 16px;
            transition: color .1s ease-in-out;
            margin-right: 12px;
            color: #bcbcbc;
            display: inline-block;
            vertical-align: top; }
            main .main-content .tab .tab-links .tab-links__list li .menu-item-icon svg {
              fill: currentcolor; }
        main .main-content .tab .tab-links .tab-links__list .active .menu-item-icon, main .main-content .tab .tab-links .tab-links__list .active a {
          color: var(--blue); }
    main .main-content .tab .tab-show-content {
      width: 50%; }
      main .main-content .tab .tab-show-content .tab-show-item {
        line-height: 24px;
        display: none; }
        main .main-content .tab .tab-show-content .tab-show-item h2 {
          font-size: 24px;
          font-weight: bold; }
        main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list {
          margin: 25px 50px 0; }
          main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list .tab-show-item__single h3 {
            margin: 0 0 0 -50px;
            padding: 9px 0 9px 50px;
            font-size: 18px;
            color: #333;
            position: relative; }
            main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list .tab-show-item__single h3:hover button .circle-up-down {
              background: var(--blue); }
            main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list .tab-show-item__single h3 button {
              color: inherit;
              font-family: inherit;
              background: no-repeat;
              border: none;
              outline: none;
              font-size: inherit;
              font-weight: inherit;
              padding: 0;
              cursor: pointer;
              text-align: left; }
              main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list .tab-show-item__single h3 button .circle-up-down {
                width: 32px;
                height: 32px;
                transition: background .1s ease-in-out;
                position: absolute;
                top: 3px;
                left: 0;
                border-radius: 50%;
                background: #0052a12e; }
                main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list .tab-show-item__single h3 button .circle-up-down::before {
                  width: 19px;
                  height: 2px;
                  transition: background .1s ease-in-out;
                  content: "";
                  position: absolute;
                  top: 50%;
                  left: 50%;
                  transform: translate(-50%, -50%);
                  background: #000; }
                main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list .tab-show-item__single h3 button .circle-up-down::after {
                  width: 2px;
                  height: 19px;
                  transition: background .1s ease-in-out;
                  content: "";
                  position: absolute;
                  top: 50%;
                  left: 50%;
                  transform: translate(-50%, -50%);
                  background: #000; }
              main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list .tab-show-item__single h3 button .down::after {
                transform: translate(-50%, -50%) rotate(90deg); }
          main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list .tab-show-item__single .answer {
            color: #666;
            display: none; }
      main .main-content .tab .tab-show-content .tab-show {
        display: block; }

@media screen and (max-width: 866px) {
  header .title {
    padding: 60px 0; }
    header .title h1 {
      font-size: 30px; }
  main .main-content {
    padding: 0 15px; }
    main .main-content .tab .tab-links {
      display: none; }
    main .main-content .tab .tab-show-content {
      width: 100%; }
      main .main-content .tab .tab-show-content .tab-show-item {
        padding-top: 45px;
        display: block; }
        main .main-content .tab .tab-show-content .tab-show-item h2 {
          font-size: 22px;
          color: #333; }
        main .main-content .tab .tab-show-content .tab-show-item .tab-show-item__list {
          margin-right: 0; } }