.section1 {
    background: #f6f7f6;
    padding: 60px 20px;
    min-height: 900px;
}

.section1 h1 {
    font-size: 54px;
    max-width: 950px;
    margin: 0 auto 100px auto;
    text-align: center;
}

.card-content {
    display: flex;
    flex-direction: row;
    /* đảm bảo nằm ngang */
    justify-content: center;
    align-items: stretch;
    gap: 30px;
    max-width: 1300px;
    /* nới rộng hơn một chút */
    margin: 0 auto;
    flex-wrap: wrap;
}

.card {
    position: relative;
    height: 800px;
    width: 600px;
    border-radius: 16px;
    padding: 20px;
    background-position: center;
    background-size: cover;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* Card background */
.card1 {
    background-image: url("https://www.orionstar.com/res/orics/down/ow001_20250714_36febb1da699152d556a98a0c97ccba1.webp");
}

.card2 {
    background-image: url("https://www.orionstar.com/res/orics/down/ow001_20250714_76ca62b83bc98106618b2c054f3a5886.webp");
}

/* Typography chung cho card */
.card span:nth-child(1) {
    font-size: 48px;
    font-weight: 400;
}

.card span:nth-child(2) {
    font-size: 52px;
    font-weight: 700;
}

.card span:nth-child(3) {
    font-size: 28px;
    font-weight: 300;
}



/* Responsive cho tablet */


/* section2 */

.section2 {
    margin-top: 100px;
    display: flex;
    flex-direction: column;
    text-align: center;
}
.section2 h1 {
    margin-bottom: 20px;
}
.section2 p {
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-size: 18px;
    color: black;
    padding:10px;
    text-align: left;
}

.section2 .text-desc {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}


@media (max-width: 575.98px) {
    .section2 .text-desc {
        flex-direction: column;
        padding: 20px 10px;
    }
}



@media (max-width: 1024px) {
    .card {
        width: 100%;
        height: 500px;
    }

    .section1 h1 {
        font-size: 42px;
        margin-bottom: 60px;
    }
}

/* Responsive cho mobile */
@media (max-width: 768px) {
    .section1 {
        padding: 40px 10px;
        min-height: auto;
    }

    .section1 h1 {
        font-size: 32px;
        margin-bottom: 40px;
    }

    .card {
        width: 100%;
        height: 400px;
        padding: 15px;
    }

    .card span:nth-child(1) {
        font-size: 28px;
    }

    .card span:nth-child(2) {
        font-size: 32px;
    }

    .card span:nth-child(3) {
        font-size: 18px;
    }
}


/* banner */
.banner {
    position: relative;
    height: 800px;
    overflow: hidden;
}

.banner-bottom {
    position: absolute;
    inset: 0;
    /* phủ toàn bộ */
    background: url(https://www.orionstar.com/res/orics/down/ow001_20250715_88bf555f89b30d5a2decdef1951405f1.png) no-repeat center/cover;
}

.text-dsc-os {
    position: relative;
    z-index: 1;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: rgba(242, 245, 249, 0.6);
}

.text-dsc-os h1 {
    font-size: 80px;
    margin-bottom: 30px;
}

.text-dsc-os h2 {
    font-size: 54px;
    margin-bottom: 15px;
}

.text-dsc-os ul {
    display: flex;
    gap: 20px;
    font-size: 28px;
    justify-content: center;
    margin-top: 20px;
    list-style: none;
}
.text-dsc-os  li{
    font-size: 16px;
    color: #000;
}

/* Responsive cho mobile */
@media (max-width: 768px) {
    .banner {
        display: flex;
        flex-direction: column-reverse;
        background: #F3F4F9;
        height: auto;
        position: static;
        height: 770px;

    }

    .banner-bottom {
        position: static;
        /* bỏ absolute để nó xuống dưới */
        width: 100%;
        height: 48vw;
        background-size: cover;
        background-position: center;
    }

    .text-dsc-os {
        height: auto;
        padding: 40px 20px;
    }

    .text-dsc-os h1 {
        font-size: 40px;
    }

    .text-dsc-os h2 {
        font-size: 16px;
    }

    .text-dsc-os ul {
        font-size: 16px;
        flex-direction: column;
        /* cho dễ đọc trên mobile */
        gap: 10px;
    }
     .text-dsc-os ul li{
        font-size: 16px;

    }
}

/* end mobile */


/* Responsive */