h1,
p {
    font-family: Tahoma, "Geneva CE", "Lucida Sans", Arial, Helvetica,
        sans-serif;
}
.step {
    padding-left: 20px;
    padding-bottom: 20px;
    overflow: hidden;
    display: inline-block;
}
.step li {
    list-style-type: none;
    padding: 15px;
    position: relative;
    border: 1px solid #d3d3d3;
    text-align: center;
    display: inline-block;
}
.step li h3 {
    font-size: 36px;
    margin: 10px 0;
    font-weight: bold;
}
.step li .t1 {
    font-size: 16px;
    padding: 0 0 10px 0;
    border-bottom: 1px solid #dadada;
    font-weight: bold;
}
.step li .t2 {
    font-size: 14px;
    padding: 10px 0;
    line-height: 22px;
}
.step li A {
    display: block;
    line-height: 40px;
    text-align: center;
    color: #fff !important;
    border-radius: 5px;
}
.step li A:hover {
    text-decoration: none;
}
.step-primary {
    width: 300px;
    border-radius: 8px;
    margin: 0 -5px 0 -5px;
    box-shadow: 0 0 8px #dcdcdc;
    z-index: 999;
}
.step-primary a {
    background-color: #158eef;
}
.step-primary h3 {
    color: #f60;
}
.step-Second {
    background-color: #f8f8f8;
    width: 260px;
    z-index: 3;
    margin-bottom: 8px;
}
.step-Second a {
    background-color: #3db116;
}
.ad_nav {
    border-bottom: 4px solid #1b8eed;
    overflow: hidden;
    text-align: center;
    width: 95%;
    margin: 0 auto;
}
.ad_nav li {
    font-size: 16px;
    line-height: 50px;
    width: 180px;
    display: inline-block;
    margin: 0 10px;
    cursor: pointer;
    color: #999;
}
#ad_plane2 .ad_nav li {
    width: auto;
    padding: 0 12px;
}
.ad_nav li.nav-on {
    font-weight: bold;
    color: #fff;
    background-color: #1b8eed;
}
.ad-div {
    background-color: none;
    padding: 30px 0;
}
.ad-div-img {
    width: 850px;
    margin: 30px auto;
    border-radius: 10px;
    overflow: hidden;
    display: none;
}
.Contacts {
    background-color: #ecf7ff;
    margin: 20px auto;
    text-align: center;
    padding: 10px 20px;
    border-radius: 30px;
    box-shadow: 0 0 12px #c3dcef;
    border: 1px solid #c1dff7;
    width: 80%;
}
.ad_nav2 {
    text-align: center;
    margin-bottom: 15px;
}
.ad_nav2 li {
    display: inline-block;
    position: relative;
    cursor: pointer;
    margin: 0 10px;
    color: #999;
    font-size: 14px;
    font-weight: bold;
    padding: 5px 0 20px 0;
    width: 155px;
}
.ad_nav2 .on {
    color: #1b8eed;
}
.ad_nav2 li i {
    display: block;
    background-image: url(/assets/images/sys.png);
    background-repeat: no-repeat;
    height: 60px;
    width: 65px;
    clear: both;
    margin: 5px auto;
}
.ad_nav2 li.pc i {
    background-position: center -70px;
}
.ad_nav2 li.Mobile i {
    background-position: center -140px;
}
.ad_nav2 li.pc.on i {
    background-position: center top;
}
.ad_nav2 li.Mobile.on i {
    background-position: center -210px;
}
.ad_nav2 li.pc.on:after,
.ad_nav2 li.Mobile.on:after {
    position: absolute;
    width: 0;
    height: 0;
    content: "";
    border: 6px solid transparent;
    border-top-color: #1b8eed;
    left: 71px;
    bottom: 4px;
}
.ad_nav2 span {
    background-color: #e0e0e0;
    width: 1px;
    height: 40px;
    display: inline-block;
    margin: 25px 10px;
    vertical-align: top;
}
.ad_plane img {
    width: 100%;
}
.relativeBox {
    position: relative;
}
.relativeBox .tabsBox {
    right: 0;
    top: 0;
    position: absolute;
    width: unset;
}
.tabsBox {
    border: solid 1px #1b8eed;
    display: flex;
    border-radius: 4px;
    line-height: 26px;
    float: left;
}
.tabsBox li {
    text-align: center;
    flex: 1;
    color: #333;
    cursor: pointer;
    white-space: nowrap;
    padding: 0 10px;
}
.tabsBox li img {
    vertical-align: middle;
    position: relative;
    top: -1px;
    margin-right: 3px;
}
.tabsBox li a {
    color: #333;
    text-decoration: none;
}
.tabsBox li:hover,
.tabsBox li a:hover {
    color: #f00;
}
.tabsBox li.on {
    background: #1b8eed;
    color: #fff;
}
.tabsBox li.on a {
    color: #fff;
}
.tabsBox li.on:hover,
.tabsBox li.on a:hover {
    color: #ff0;
}
.eng_content,
.thai_content {
    background: #fff;
    color: #333;
    font-size: 14px;
    line-height: 20px;
    padding: 30px;
    border-radius: 5px 5px 0 0;
}
.eng_content .info,
.thai_content .info {
    font-size: 15px;
    line-height: 28px;
    margin: 0;
    padding: 20px 20px 0 20px;
}
.eng_content a,
.thai_content a {
    color: #1b8eed !important;
    text-decoration: none;
}
.ad_title,
.ad_title > span {
    color: #444;
    font-size: 30px;
    line-height: 36px;
    text-align: center;
    font-weight: bold;
    margin: 10px 0 20px 0;
}
.merit {
    margin-top: 20px;
}
.merit li {
    font-weight: 800;
    line-height: 35px;
}
.merit li::before {
    content: "";
    background-color: #333;
    display: inline-block;
    width: 10px;
    height: 10px;
    vertical-align: middle;
    margin: 0 20px 3px 0;
    border-radius: 50%;
}
.Contacts {
    width: 90%;
    background-color: #ecf7ff;
    margin: 20px auto;
    text-align: center;
    padding: 10px 20px;
    border-radius: 30px;
    box-shadow: 0 0 12px #c3dcef;
    border: 1px solid #c1dff7;
}
.Contacts .adctt {
    color: #666;
    font-weight: bold;
    margin-right: 10px;
}
.Contacts .iconimg {
    width: 24px;
    height: 24px;
    vertical-align: middle;
    margin: 0 6px;
}
.mapimg {
    margin: 40px auto 0 auto;
    display: block;
}
.ad-div {
    border-radius: 0 0 5px 5px;
}
.disclaimer-container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-radius: 8px;
}
.disclaimer-container h1 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-weight: bold;
}
.disclaimer-container .intro {
    font-size: 16px;
    line-height: 1.6;
    color: #555;
    margin-bottom: 30px;
    text-align: justify;
}
.disclaimer-section {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 6px;
}
.disclaimer-section h2 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}
.disclaimer-section p {
    font-size: 15px;
    line-height: 1.6;
    color: #444;
    margin-bottom: 15px;
    text-align: justify;
}
.social-links {
    list-style: none;
    margin: 0;
}
.social-links li {
    margin-bottom: 10px;
}
.social-links a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}
.social-links a:hover {
    color: #0056b3;
    text-decoration: underline;
}
.contact-info {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 6px;
    margin-bottom: 30px;
}
.contact-info h2 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
}
.contact-info ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.contact-info li {
    margin-bottom: 12px;
    font-size: 15px;
    color: #444;
}
.contact-info strong {
    color: #2c3e50;
    margin-right: 10px;
}
.contact-info a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}
.contact-info a:hover {
    color: #0056b3;
    text-decoration: underline;
}
.footer-note {
    font-size: 14px;
    color: #666;
    text-align: center;
    margin-top: 30px;
    padding: 20px;
    border-top: 1px solid #eee;
    font-style: italic;
}
.contact-container {
    max-width: 1000px;
    margin: 40px auto;
    padding: 30px;
    background: #fff;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    border-radius: 12px;
}
.contact-container h1 {
    font-size: 32px;
    color: #333;
    margin-bottom: 30px;
    margin-left: 20px;
    font-weight: bold;
    padding-bottom: 20px;
    border-bottom: 1px solid #888888;
}
.intro-text {
    margin-bottom: 30px;
    padding: 0 20px;
}
.intro-text p {
    font-size: 16px;
    line-height: 1.6;
    color: #555;
}
.contact-section, .social-section {
    margin-bottom: 10px;
    padding: 20px;
}
.contact-section h2, .social-section h2 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}
.contact-item {
    padding: 15px;
    background: #fff;
    border-radius: 8px;
}
.contact-item h3 {
    font-size: 18px;
    color: #444;
    margin-bottom: 10px;
    font-weight: 600;
}
.contact-item p {
    font-size: 16px;
    color: #666;
    line-height: 1.5;
    margin: 0;
}
.email-note {
    font-size: 14px;
    color: #777;
    font-style: italic;
}
.social-intro {
    font-size: 16px;
    color: #555;
    margin-bottom: 15px;
    line-height: 1.6;
}
.social-links {
    display: grid;
}
.social-item {
    padding: 15px;
}
.social-item h3 {
    font-size: 18px;
    color: #444;
    margin-bottom: 10px;
    font-weight: 600;
}
.social-item a {
    color: #007bff;
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s ease;
    word-break: break-all;
}
.social-item a:hover {
    color: #0056b3;
    text-decoration: underline;
}
@media (max-width: 768px) {
    .contact-container {
        margin: 20px;
        padding: 20px;
    }
    .contact-container h1 {
        font-size: 24px;
    }
    .contact-section h2, .social-section h2 {
        font-size: 20px;
    }
    .contact-item, .social-item {
        padding: 12px;
    }
    .contact-item h3, .social-item h3 {
        font-size: 16px;
    }
    .contact-item p, .social-item a {
        font-size: 14px;
    }
}