body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #fff;
    color: #222;
    min-height: 100vh;
  }
  
  .header {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0 8px 0;
    box-sizing: border-box;
    margin-bottom: 0;
    border-bottom: none;
  }
  .logo-link {
    display: flex;
    align-items: center;
    margin-left: 8px;
  }
  .logo {
    display: inline-block;
    object-fit: contain;
    background: none;
  }
  .top-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-right: 8px;
  }
  .support, .lang-select {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 12px;
    color: #0E71EB;
    font-weight: 400;
    text-decoration: none;
    cursor: pointer;
    transition: text-decoration 0.2s;
  }
  .support:hover, .lang-select:hover {
    text-decoration: underline;
  }
  .lang-select {
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }
  .arrow {
    font-size: 10px;
    margin-left: 2px;
  }
  
  .main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
  }
  .center-box {
    margin-top: 40px;
    background: #fff;
    border-radius: 8px;
    box-shadow: none;
    padding: 0 0 40px 0;
    text-align: center;
    max-width: 600px;
    width: 100%;
  }
  
  /* Главная инструкция – первая строка с текстом "Нажмите Open Zoom Workplace app в диалоговом окне в браузере" */
  .main-instruction {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 20px;
    color: #232333;
    font-weight: 400;
    padding: 12px 0;
    margin: 0 0 8px 0;
    text-align: center;
    white-space: nowrap;
  }
  
  /* Вторичная инструкция – строка "Если диалоговое окно не отображается, нажмите Запустить конференцию" */
  /* Для корректного позиционирования части текста оберните слово "Если" в элемент <span class="adjust">Если</span> в HTML */
  .secondary-instruction {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 20px;
    color: #232333;
    font-weight: 400;
    text-align: center;
    white-space: nowrap;
    position: relative;
    right: 40px;
  }
  
  /* Сдвиг влево для выравнивания: таким образом буква "и" в "Если" оказывается под буквой "Н" слова "Нажмите" из первой строки */
  .secondary-instruction .adjust {
    position: relative;
  }
  
  /* Текст "ниже" */
  .instruction-sub {
    display: block;
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 20px;
    color: #232333;
    margin: 8px 0 0 0;
    font-weight: 400;
    text-align: center;
  }
  
  /* Стиль для жирного текста, используемого в обоих инструкциях */
  .main-bold {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 20px;
    color: #232333;
    font-weight: 700;
    display: inline;
    vertical-align: baseline;
  }
  
  .terms {
    font-size: 16px;
    color: #222;
    margin-bottom: 28px;
    text-align: center;
    line-height: 1.3;
    margin-top: 30px;
  }
  .terms a {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 16px;
    color: #0E72ED;
    font-weight: 400;
    text-decoration: none;
    cursor: pointer;
    transition: text-decoration 0.2s;
  }
  .terms a:hover {
    text-decoration: underline;
  }
  
  .terms-line {
    white-space: nowrap;
    position: relative;
    right: 15px;
  }
  
  .start-btn {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 16px;
    background: #0E72ED;
    color: #fff;
    border: none;
    border-radius: 16px;
    padding: 14px 40px;
    font-weight: 400;
    cursor: pointer;
    margin: 12px 0 0 0;
    transition: background 0.2s;
    outline: none;
    box-shadow: none;
    display: inline-block;
  }
  .start-btn:hover {
    background: #1664c0;
  }
  .download-link {
    margin-top: 100px;
    font-size: 13px;
    color: #222;
  }
  .download-link a {
    color: #2D8CFF;
    text-decoration: none;
  }
  .download-link a:hover {
    text-decoration: underline;
  }
  
  .footer {
    width: 100%;
    text-align: center;
    margin-top: -200px !important;
    color: #888;
    font-size: 12px;
    padding-bottom: 24px;
  }
  .footer-links {
    margin-bottom: 6px;
  }
  .footer-links a {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: #0404138F;
    font-weight: 400;
    margin: 2px 0;
    padding: 0 6px;
    text-decoration: none;
    cursor: pointer;
    transition: text-decoration 0.2s;
  }
  .footer-links a:hover {
    text-decoration: underline;
  }
  .footer .copyright {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: #0404138F;
    font-weight: 400;
    margin: 0 0 8px 0;
  }
  
  .chat-btn {
    position: fixed;
    right: 32px;
    bottom: 32px;
    z-index: 100;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(45,140,255,0.15);
    border-radius: 50%;
    background: #fff;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  @media (max-width: 600px) {
    body {
      padding: 0;
      margin: 0;
    }
    .header {
      flex-direction: row;
      align-items: center;
      justify-content: space-between;
      padding: 12px 4vw 0 4vw;
    }
    .logo-link {
      margin-left: 0;
      justify-content: flex-start;
      width: auto;
      flex: 1 1 auto;
    }
    .logo {
      height: 36px;
      margin-bottom: 0;
      margin-left: 0;
    }
    .top-nav {
      margin-right: 0;
      gap: 12px;
      width: auto;
      justify-content: flex-end;
      flex: 1 1 auto;
    }
    .main-content {
      min-height: 60vh;
      padding-top: 12px;
      padding-bottom: 12px;
      align-items: center;
    }
    .center-box {
      margin-top: 16px;
      padding: 0 0 24px 0;
      max-width: 100%;
      border-radius: 0;
      box-shadow: none;
      text-align: center;
    }
    .main-instruction {
      font-size: 16px;
      white-space: normal;
      padding: 6px 0;
      text-align: center;
      margin-bottom: 0;
    }
    .secondary-instruction {
      font-size: 16px;
      white-space: normal;
      padding: 6px 0 0 0;
      text-align: center;
      position: static;
      right: 0;
      margin-left: auto;
      margin-right: auto;
      display: block;
      margin-bottom: 0;
    }
    .instruction-sub {
      font-size: 16px;
      white-space: normal;
      padding: 0 0 10px 0;
      text-align: center;
      margin-top: 0;
      margin-bottom: 0;
      display: block;
    }
    .main-bold {
      font-size: 16px;
    }
    .terms {
      font-size: 13px;
      margin-top: 18px;
      margin-bottom: 18px;
      text-align: center;
    }
    .terms a, .terms a:last-child {
      display: inline;
      margin: 0 2px 0 0;
      text-align: inherit;
      width: auto;
    }
    .start-btn {
      font-size: 15px;
      padding: 12px 18px;
      border-radius: 12px;
      margin-top: 10px;
      width: 90%;
      max-width: 320px;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }
    .footer {
      font-size: 10px;
      margin-top: 24px !important;
      padding-bottom: 12px;
      position: static;
      text-align: center;
    }
    .footer-links {
      flex-wrap: wrap;
      font-size: 10px;
      line-height: 1.2;
      margin-bottom: 2px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
    }
    .footer-links a {
      font-size: 10px;
      padding: 0 2px;
      display: inline-block;
    }
    .copyright {
      font-size: 10px;
      margin-bottom: 2px;
      text-align: center;
    }
    .rm-presentation {
      text-align: center;
      font-size: 12px;
      left: 0;
      margin-top: 24px;
      position: static;
    }
    .rm-presentation span, .rm-presentation p {
      display: block;
      margin: 0 auto;
      text-align: center;
      width: max-content;
    }
    .rm-presentation a {
      display: block;
      margin: 0 auto 0 18vw;
      margin-top: 2px;
      text-align: left;
      width: max-content;
    }
    .footer-links a:last-child {
      display: block;
      text-align: center;
      margin-left: auto;
      margin-right: auto;
      width: max-content;
    }
    .chat-btn {
      right: 8px;
      bottom: 8px;
      width: 36px;
      height: 36px;
    }
    .top-divider {
      top: 56px;
      height: 1px;
    }
    .center-divider {
      margin: 24px 0 0 0;
      height: 1px;
    }
    .terms-line {
      display: block;
      white-space: normal;
      margin-bottom: 2px;
    }
    .terms a {
      display: block;
      margin: 0 auto;
      text-align: center;
      width: max-content;
    }
    .terms a:last-child {
      margin-top: 0;
      margin-bottom: 0;
      margin-left: auto;
      margin-right: auto;
    }
    .rm-presentation .center-mobile-text {
      display: block;
      text-align: left;
      margin-left: -30px;
      margin-right: 0px;
    }
  }
  
  .rm-presentation {
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: #232333;
    font-weight: 400;
    margin-top: 60px;
    text-align: left;
    position: relative;
    left: 80px;
  }
  .rm-presentation a {
    color: #0E72ED;
    font-family: 'Open Sans', Helvetica, Arial, sans-serif;
    font-size: 14px;
    text-decoration: none;
    font-weight: 400;
    cursor: pointer;
  }
  .rm-presentation a:hover {
    text-decoration: underline;
  }
  
  .top-divider {
    width: 100vw;
    height: 2px;
    background: #f4f4f6;
    position: absolute;
    left: 0;
    top: 63px;
    z-index: 10;
  }
  
  .center-divider {
    width: 100vw;
    max-width: 750px;
    height: 1px;
    margin: 48px 0 0 0;
    background: #e9eaf0;
    border-radius: 1px;
    border: none;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
  }
  
  html, body {
    overflow-x: hidden;
    overscroll-behavior-x: none;
    touch-action: pan-y;
  }