.customer-service {
    background-color: #cee1e0;
}

.customer-service-herosec {
    display: flex;
    align-items: center;
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
    justify-content: space-between;
    text-align: center;
}

.customer-service-herosec h2 {
    font-size: 30px;
}

.customer-service-img img {
    max-width: 300px;
    width: 100%;
    height: auto;
    border-radius: 15px;
}

.container {
    max-width: 900px;
    margin: auto;
    padding: 0 20px;
}

.article-page h1 {
    margin: 20px 0 30px;
    color: #0f766e;
    text-align: center;
    text-decoration: underline;
}

.article-content a {
    color: #0f766e;
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
}

.article-content h2 {
    /* font-size: 26px; */
    margin-top: 22px;
    margin-bottom: 15px;
}

.article-content p {
    margin-bottom: 10px;
    line-height: 1.7;
    color: #444;
}

.article-content ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.article-content li {
    margin-bottom: 8px;
}

.article-content img {
    width: 100%;
    border-radius: 6px;
    margin: 25px 0;
}

.ei-video-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    /* background: #dcdcdc; */
    padding: 20px;
    border-radius: 10px;
    max-width: 1000px;
    margin: 30px auto;
}

.ei-video-box {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    cursor: pointer;
    background: #000;
}

.ei-video-box img {
    width: 100%;
    max-width: 465px;
    height: auto;
    display: block;
}

/* play button */
.ei-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 12px;
}

.ei-play-btn::after {
    content: "";
    position: absolute;
    left: 28px;
    top: 20px;
    border-left: 22px solid #fff;
    border-top: 14px solid transparent;
    border-bottom: 14px solid transparent;
}

/* bottom strip */
.ei-video-bar {
    position: absolute;
    bottom: 0;
    width: 100%;
    background: #ddd;
    display: flex;
    justify-content: space-between;
    padding: 6px 10px;
    font-size: 14px;
}

.iframe {
    min-height: 350px;
}

@media(max-width:768px) {
    .article-page h1 {
        font-size: 26px;
        padding: 0 20px;
    }

    .customer-service-herosec h2 {
        font-size: 26px;
    }
}

@media(max-width:600px) {
    .ei-video-grid {
        grid-template-columns: 1fr;
    }

    .customer-service-herosec {
        flex-direction: column-reverse;
        gap: 10px;
    }

    .customer-service-herosec h2 {
        line-height: normal;
    }

    .iframe {
        min-height: 250px;
    }

    .article-content a {
        word-wrap: break-word;
    }
}