/* Trang giới thiệu Đức Thắng - tách riêng khỏi bộ CSS homepage cũ. */
.dt-about,
.dt-about * {
    box-sizing: border-box;
}

.dt-about {
    --dt-about-blue: #0755a5;
    --dt-about-green: #04ade3;
    --dt-about-gold: #e99c12;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 76px 0 38px;
    color: #40566e;
    background: linear-gradient(145deg, #f8fcff 0%, #eef7ff 55%, #f7fcf7 100%);
}

    .dt-about::before,
    .dt-about::after {
        content: "";
        position: absolute;
        z-index: -1;
        border-radius: 50%;
        pointer-events: none;
    }

    .dt-about::before {
        width: 420px;
        height: 420px;
        top: -180px;
        left: -150px;
        background: rgba(25,168,91,.09);
    }

    .dt-about::after {
        width: 360px;
        height: 360px;
        right: -140px;
        bottom: -180px;
        background: rgba(0,83,171,.08);
    }

.dt-about-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0,1fr) minmax(0,1.09fr);
    align-items: center;
    gap: clamp(32px,2vw,78px);
    min-height: 500px;
}

.dt-about-copy {
    padding: 0;
}

.dt-about-eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    color: var(--dt-about-green);
    font: 700 15px/1.2 'Montserrat-Bold',Arial,sans-serif;
    letter-spacing: 1.5px;
}

    .dt-about-eyebrow i {
        width: 34px;
        height: 2px;
        border-radius: 10px;
        background: #f2bd28;
    }

    .dt-about-eyebrow strong {
        color: #1e2f5a;
        font-size: 15px;
        letter-spacing: .7px;
    }

.dt-about h2 {
    margin: 0 0 21px;
    color: var(--dt-about-blue);
    font: 800 clamp(29px,3.3vw,42px)/1.12 'Montserrat-ExtraBold',Arial,sans-serif;
    letter-spacing: -.8px;
}

    .dt-about h2 em {
        color: var(--dt-about-gold);
        font-style: normal;
    }

.dt-about-lead,
.dt-about-detail {
    margin: 0;
    font-family: 'Montserrat-Medium',Arial,sans-serif;
    text-align: justify;
}

.dt-about-lead {
    font-size: 15px;
    line-height: 1.75;
    text-align: justify;
}

.dt-about-detail {
    color: #708399;
    font-size: 15px;
    line-height: 1.6;
}

.dt-about-facts {
    display: grid;
    grid-template-columns: repeat(4,minmax(0,1fr));
    gap: 4px;
    max-width: 625px;
    margin: 27px 0 25px;
}

.dt-about-fact {
    display: flex;
    align-items: center;
    gap: 5px;
    min-width: 0;
    padding: 10px 7px 10px;
    border: 1px solid rgba(7,85,165,.11);
    border-radius: 14px;
    background: rgba(255,255,255,.76);
    box-shadow: 0 8px 18px rgba(0,57,113,.06);
    transition: transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}

    .dt-about-fact:hover {
        transform: translateY(-4px);
        border-color: rgba(7,85,165,.28);
        box-shadow: 0 13px 25px rgba(0,57,113,.12);
    }

    .dt-about-fact > i {
        display: inline-grid;
        place-items: center;
        flex: 0 0 30px;
        width: 30px;
        height: 30px;
        border-radius: 10px;
        background: #eaf3ff;
        color: var(--dt-about-blue);
        font-size: 15px;
        transition: transform .25s ease, background .25s ease, color .25s ease;
    }

    .dt-about-fact:nth-child(2) > i {
        background: #eaf8f0;
        color: var(--dt-about-green);
    }

    .dt-about-fact:nth-child(3) > i {
        background: #fff4cf;
        color: #a87500;
    }

    .dt-about-fact:nth-child(4) > i {
        background: #ffeaf3;
        color: #d12d78;
    }

    .dt-about-fact:hover > i {
        transform: rotate(-7deg) scale(1.08);
        background: var(--dt-about-blue);
        color: #fff;
    }

    .dt-about-fact strong, .dt-about-fact span {
        display: block;
    }

    .dt-about-fact strong {
        color: var(--dt-about-blue);
        font: 800 20px/1 'Montserrat-Bold',Arial,sans-serif;
    }

    .dt-about-fact span {
        margin-top: 6px;
        color: #71859a;
        font: 600 11px/1.5 'Montserrat-SemiBold',Arial,sans-serif;
        text-transform: uppercase;
    }

.dt-about-primary-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 12px 20px;
    border-radius: 999px;
    background: var(--dt-about-blue);
    color: #fff !important;
    font: 700 15px 'Montserrat-Bold',Arial,sans-serif;
    box-shadow: 0 12px 24px rgba(7,85,165,.2);
    transition: transform .25s ease,background .25s ease,box-shadow .25s ease;
}

    .dt-about-primary-link:hover {
        color: #fff !important;
        background: var(--dt-about-green);
        transform: translateY(-3px);
    }

.dt-about-visual {
    position: relative;
    min-height: 470px;
    padding: 0 0px 20px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dt-about-image-frame {
    position: relative;
    width: min(100%,600px);
    height: 430px;
    overflow: hidden;
    border: 9px solid #fff;
    border-radius: 28px 28px 110px 28px;
    background: #dceaf6;
    box-shadow: 0 20px 45px rgba(0,55,110,.18);
    transform: rotate(1deg);
}

    .dt-about-image-frame > a {
        display: block;
        width: 100%;
        height: 100%;
    }

.dt-about-main-img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    border-radius: 18px 18px 98px 18px;
    transition: transform .6s ease;
}

.dt-about-image-frame:hover .dt-about-main-img {
    transform: scale(1.045);
}

.dt-about-image-caption {
    position: absolute;
    right: 142px;
    bottom: 2px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 13px;
    border: 1px solid rgba(255,255,255,.35);
    border-radius: 999px;
    background: rgba(7,52,102,.78);
    color: #fff;
    font: 600 14px 'Montserrat-SemiBold',Arial,sans-serif;
    backdrop-filter: blur(8px);
}

    .dt-about-image-caption i {
        color: #ffdc66;
    }

.dt-about-badge {
    position: absolute;
    left: -26px;
    bottom: 5px;
    z-index: 5;
    display: grid;
    grid-template-columns: 35px 1fr;
    align-items: center;
    column-gap: 9px;
    width: 235px;
    padding: 12px 13px;
    border: 3px solid #fff;
    border-radius: 16px;
    background: var(--dt-about-green);
    color: #fff;
    box-shadow: 0 12px 25px rgba(0,70,48,.2);
}

    .dt-about-badge i {
        grid-row: span 2;
        display: grid;
        place-items: center;
        width: 34px;
        height: 34px;
        border-radius: 10px;
        background: #ffffff20;
        color: #ffdc66;
    }

    .dt-about-badge strong {
        font: 800 18px 'Montserrat-Bold',Arial,sans-serif;
        color: #f9e61d;
    }

    .dt-about-badge span {
        margin-top: 2px;
        color: #fff;
        font: 500 14px 'Montserrat-Medium',Arial,sans-serif;
    }

.dt-about-circle {
    position: absolute;
    z-index: 4;
    display: block;
    width: 175px;
    height: 175px;
    overflow: hidden;
    border: 6px solid #fff;
    border-radius: 50%;
    background: #e7eef8;
    box-shadow: 0 10px 25px rgba(0,43,112,.2);
}

    .dt-about-circle img {
        width: 100%;
        height: 100%;
        display: block;
        object-fit: cover;
    }

.dt-about-circle-a {
    left: -28px;
    top: -38px;
}

.dt-about-circle-b {
    right: 1px;
    bottom: 43px;
}

.dt-about-circle-c {
    right: 0;
    top: -35px;
    display: none;
}

.dt-about-quality-band {
    position: relative;
    margin-top: 34px;
}

.dt-about-core-values {
    width: 100%;
    border-radius: 18px;
    background: rgba(255,255,255,.72);
    box-shadow: 0 10px 25px rgba(0,43,112,.07);
}

.dt-about-core-values__inner {
    width: 100%;
    max-width: 1180px;
    min-height: 82px;
    margin: 0 auto;
    padding: 8px 14px;
    display: grid;
    grid-template-columns: repeat(4,minmax(0,1fr));
    align-items: center;
    column-gap: 32px;
}

.dt-about-core-value {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 5px;
}

.dt-about-core-value__icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #fff;
}

    .dt-about-core-value__icon svg {
        width: 28px;
        height: 28px;
        display: block;
    }

.dt-about-core-value__content {
    min-width: 0;
    line-height: 1.2;
}

    .dt-about-core-value__content h3 {
        margin: 0 0 5px;
        color: var(--dt-about-blue);
        font-size: 17px;
        line-height: 1.05;
        text-transform: uppercase;
        white-space: nowrap;
    }

    .dt-about-core-value__content p {
        margin: 0;
        color: #3d3d3d;
        font-size: 16px;
        line-height: 1.25;
        white-space: nowrap;
    }

.dt-about-core-value--knowledge .dt-about-core-value__icon {
    background: #1174cf;
}

.dt-about-core-value--knowledge h3 {
    color: #176cc2;
}

.dt-about-core-value--character .dt-about-core-value__icon {
    background: #ef3473;
}

.dt-about-core-value--character h3 {
    color: #e83770;
}

.dt-about-core-value--creative .dt-about-core-value__icon {
    background: #f7a10c;
}

.dt-about-core-value--creative h3 {
    color: #ef9805;
}

.dt-about-core-value--integration .dt-about-core-value__icon {
    background: #51a921;
}

.dt-about-core-value--integration h3 {
    color: #4d9f28;
}

@media (max-width:1023px) {
    .dt-about {
        padding-top: 55px;
    }

    .dt-about-detail {
        background: url(/Design/img/TieuHocDucThang/dt-ab.png) no-repeat;
        background-size: cover;
    }

    .dt-about p.dt-about-detail {
        background: transparent;
    }

    .dt-about-grid {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .dt-about-visual {
        min-height: 410px;
        padding-right: 0;
    }

    .dt-about-image-frame {
        width: min(100%,680px);
    }

    .dt-about-circle-a {
        left: 2%;
    }

    .dt-about-circle-b {
        right: 2%;
    }

    .dt-about-core-values__inner {
        grid-template-columns: repeat(2,minmax(0,1fr));
        row-gap: 18px;
        padding: 18px 20px;
    }
}

@media (max-width:575px) {
    .dt-about {
        padding: 42px 0 26px;
    }

    .dt-about-grid {
        gap: 25px;
    }

    .dt-about-eyebrow {
        gap: 7px;
        margin-bottom: 13px;
        font-size: 14px;
        letter-spacing: 1px;
    }

        .dt-about-eyebrow strong {
            font-size: 14px;
            letter-spacing: .2px;
        }

    .dt-about h2 {
        margin-bottom: 16px;
        font-size: 31px;
    }

    .dt-about-lead {
        font-size: 15px;
        line-height: 1.65;
    }

    .dt-about-detail {
        font-size: 15px;
        line-height: 1.55;
    }

    .dt-about-facts {
        margin: 20px 0;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        max-width: 100%;
    }

    .dt-about-fact {
        padding: 5px 5px;
        border-radius: 11px;
    }

        .dt-about-fact > i {
            flex-basis: 38px;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            font-size: 15px;
        }

        .dt-about-fact strong {
            font-size: 16px;
        }

        .dt-about-fact span {
            margin-top: 1px;
            font-size: 13px;
        }

    .dt-about-primary-link {
        width: max-content;
    }

    .dt-about-visual {
        min-height: 285px;
    }

    .dt-about-image-frame {
        height: 270px;
        border-width: 6px;
        border-radius: 20px 20px 66px 20px;
    }

    .dt-about-main-img {
        border-radius: 14px 14px 58px 14px;
    }

    .dt-about-image-caption {
        right: 87px;
        bottom: 2px;
        padding: 7px 10px;
        font-size: 9px;
    }

    .dt-about-badge {
        left: 3px;
        bottom: -10px;
        width: 150px;
        padding: 9px 10px;
        border-width: 4px;
        column-gap: 5px;
    }

        .dt-about-badge i {
            width: 28px;
            height: 28px;
        }

        .dt-about-badge strong {
            font-size: 13px;
        }

        .dt-about-badge span {
            font-size: 11px;
        }

    .dt-about-circle {
        width: 95px;
        height: 95px;
        border-width: 4px;
    }

    .dt-about-circle-a {
        left: -5px;
        top: -15px;
    }

    .dt-about-circle-b {
        right: -5px;
        bottom: -4px;
    }

    .dt-about-quality-band {
        margin-top: 25px;
    }

    .dt-about-core-values__inner {
        gap: 14px 10px;
        padding: 16px 10px;
    }

    .dt-about-core-value__icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
    }

        .dt-about-core-value__icon svg {
            width: 20px;
            height: 20px;
        }

    .dt-about-core-value__content h3 {
        margin-bottom: 3px;
        font-size: 12px;
        white-space: normal;
    }

    .dt-about-core-value__content p {
        font-size: 12px;
        white-space: normal;
    }
}

@media (max-width:375px) {
    .dt-about {
        padding: 42px 0 26px;
    }

    .dt-about-grid {
        gap: 25px;
    }

    .dt-about-eyebrow {
        gap: 7px;
        margin-bottom: 13px;
        font-size: 11px;
        letter-spacing: 1px;
        line-height: 1.5;
    }

        .dt-about-eyebrow strong {
            font-size: 11px;
            letter-spacing: .2px;
        }

    .dt-about h2 {
        margin-bottom: 16px;
        font-size: 25px;
    }

    .dt-about-lead {
        font-size: 14px;
        line-height: 1.65;
    }

    .dt-about-detail {
        font-size: 14px;
        line-height: 1.65;
        padding-top: 10px;
    }

    .dt-about-facts {
        margin: 20px 0;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        max-width: 100%;
    }

    .dt-about-fact {
        padding: 5px 5px;
        border-radius: 11px;
    }

        .dt-about-fact > i {
            flex-basis: 38px;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            font-size: 15px;
        }

        .dt-about-fact strong {
            font-size: 15px;
        }

        .dt-about-fact span {
            margin-top: 1px;
            font-size: 12px;
        }

    .dt-about-primary-link {
        width: max-content;
        font-size: 14px;
        min-height: 42px;
        padding: 9px 13px;
    }

    .dt-about-visual {
        min-height: 285px;
    }

    .dt-about-image-frame {
        height: 270px;
        border-width: 6px;
        border-radius: 20px 20px 66px 20px;
    }

    .dt-about-main-img {
        border-radius: 14px 14px 58px 14px;
    }

    .dt-about-image-caption {
        right: 30px;
        bottom: 2px;
        padding: 7px 10px;
        font-size: 9px;
    }

    .dt-about-badge {
        left: 3px;
        bottom: -13px;
        width: 145px;
        padding: 9px 10px;
        border-width: 4px;
        column-gap: 5px;
    }

        .dt-about-badge i {
            width: 28px;
            height: 28px;
        }

        .dt-about-badge strong {
            font-size: 13px;
        }

        .dt-about-badge span {
            font-size: 11px;
        }

    .dt-about-circle {
        width: 95px;
        height: 95px;
        border-width: 4px;
    }

    .dt-about-circle-a {
        left: -5px;
        top: -15px;
    }

    .dt-about-circle-b {
        right: -5px;
        bottom: 56px;
    }

    .dt-about-quality-band {
        margin-top: 25px;
    }

    .dt-about-core-values__inner {
        gap: 14px 10px;
        padding: 16px 10px;
    }

    .dt-about-core-value__icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
    }

        .dt-about-core-value__icon svg {
            width: 20px;
            height: 20px;
        }

    .dt-about-core-value__content h3 {
        margin-bottom: 3px;
        font-size: 12px;
        white-space: normal;
    }

    .dt-about-core-value__content p {
        font-size: 12px;
        white-space: normal;
    }
}

@media (prefers-reduced-motion:reduce) {
    .dt-about * {
        transition: none !important;
    }
}