@media (max-width: 480px) {
    .container {
        width: 100% !important;
    }
    body {
        background-image: url('../images/bg-main.jpg');
        background-repeat: no-repeat;
        background-position: top;
        background-size: auto;
    }
    a.navtabMenu {
        flex-direction: column;
    }
    a.navtabMenu img {
        max-height: 58px;
        margin-right: 0;
        margin-bottom: 10px;
    }
    .slideMenu.open {
        width: 85%; /* กำหนดความกว้างเมื่อเมนูเปิด (85% ของหน้าจอ) */
      }
    .step .step-number {
        width: 60px;
        height: 60px;
        font-size: 54px;
    }
    .posTextLoto h1 {
        font-size: 38px;
    }
    .icoLotto {
        width: 140px;
    }
    .mainMenuBox {
        flex-direction: column;
    }
    .mainMenuBox img {
        height: auto;
        margin-bottom: 4px;
        margin-right: 0;
    }


    body {
        margin-bottom: 70px;
      }
      
      .bottom-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 78px;
        background: linear-gradient(0deg, #000 0%, #1E1E1E 100%);
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
        display: flex;
        justify-content: space-around;
        align-items: center;
        z-index: 10;
      }
      
      .nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-decoration: none;
        color: var(--secondary-color-light);
        transition: color 0.3s ease;
      }
      
      .nav-item .nav-icon {
        transition: filter 0.3s ease;
      }
      
      .nav-item .nav-label {
        font-size: 18px;
        margin-top: 2px;
      }
      
      .nav-item.active {
        color: var(--primary-color);
      }

}