.installation-hvac {
    padding-top: 180px;
    padding-bottom: 180px;
    background: #FACD0A;
}

.img-hdvc {
    width: 100%;
    margin-top: 45px;
}

.installation-inner {
    margin-top: 60px;
}

.installation-inner .h3 {
    text-transform: none;
    font-size: 24px !important;
    margin-bottom: 35px;
    line-height: 1.5;
    font-family: 'Poppins-SemiBold';
}

.installation-inner strong {
    max-width: 451px;
}

.installation-inner span,
.installation-inner-sub {
    width: calc(100% - 451px);
    padding-left: 80px;
}

.installation-inner ol:not(ul) {
    list-style: none;
    counter-reset: li;
}

.installation-inner p,
.installation-inner span ul,
.installation-inner-sub ul {
    margin-bottom: 25px;
}

.installation-inner>*:last-child,
.installation-inner p:last-child {
    margin-bottom: 0;
}

.installation-inner ol li:not(ul li) {
    border-bottom: 1px solid rgba(0, 0, 0, .2);
    padding-bottom: 40px;
    position: relative;
    margin-bottom: 40px !important;
}

.installation-inner ol li div:not(.installation-inner-sub) {
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: flex-start;
}

.installation-inner ol li:last-child {
    margin-bottom: 0 !important;
    border: none;
    padding-bottom: 0;
}

.des-hvac {
    padding-top: 180px;
    padding-bottom: 180px;
}

.des-hvac .h2 {
    margin-bottom: 50px;
}

.des-hvac img {
    margin-top: 0;
    margin-bottom: 40px;
}

.des-hvac p:last-child {
    margin-bottom: 0;
}

.p-icon-bg {
    width: 90px;
    height: 90px;
    border-radius: 90px;
    background: #161112;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #FACD0A;
    font-size: 48px;
    margin-right: 40px;
    margin-left: 5px;
}

.all-principles {
    margin-top: 80px;
}

.des-principles {
    flex: 1;
}

.single-principles:first-child {
    padding-top: 0;
}

.single-principles {
    padding-top: 50px;
    position: relative;
    border-bottom: 1px solid rgba(0, 0, 0, .2);
    padding-bottom: 50px;
    display: flex;
}

.des-principles .h3 {
    font-size: 24px !important;
    font-family: 'Poppins-SemiBold';
    text-transform: none;
    margin-bottom: 12px;
    line-height: 1.5;
}

.des-principles p {
    max-width: 1000px;
    margin-bottom: 25px;
}

.des-principles p:last-child,
.inner-sec-con>*:last-child {
    margin-bottom: 0;
}

.single-principles:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.inner-sec-con>* {
    margin-bottom: 25px;
}

.serve-inner .inner-sec-con:not(:last-child) {
    padding-bottom: 40px;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(0, 0, 0, .2);
}

.serve-contain {
    background: #FACD0A;
    padding-top: 180px;
    padding-bottom: 180px;
}

.serve-img {
    width: 100%;
}

.serve-contain .h2 {
    margin-bottom: 50px;
}

.right-serve {
    padding-left: 90px;
}

.right-serve>* {
    margin-bottom: 25px;
}

.right-serve>*:last-child {
    margin-bottom: 0;
}

.right-serve .one-dark-btn {
    margin-top: 11px;
}

.change-serve-cols {
    background-color: #fff;
}

.installation-inner~.one-dark-btn {
    margin-top: 40px;
}

@media (min-width: 1500px) {
    .installation-inner strong {
        font-size: 20px;
    }
}

@media (min-width: 1800px) {
    .serve-img {
        width: 605px;
        max-width: 605px;
    }

    .installation-inner strong {
        font-size: 22px;
    }
}

@media (max-width: 1799px) {

    .des-hvac,
    .installation-hvac,
    .serve-contain {
        padding-top: 140px;
        padding-bottom: 140px;
    }

    .img-hdvc {
        margin-top: 30px;
    }

    .installation-inner {
        margin-top: 40px;
    }

    .installation-inner .h3,
    .des-principles .h3 {
        font-size: 22px !important;
    }

    .installation-inner ol li:not(ul li) {
        padding-bottom: 30px;
        margin-bottom: 30px !important;
    }

    .installation-inner span,
    .installation-inner-sub {
        padding-left: 60px;
    }

    .des-hvac .h2 {
        margin-bottom: 40px;
    }

    .all-principles {
        margin-top: 60px;
    }

    .single-principles {
        padding-top: 40px;
        padding-bottom: 40px;
    }

    .right-serve {
        padding-left: 40px;
    }

    .serve-contain .h2 {
        margin-bottom: 40px;
    }

    .installation-inner~.one-dark-btn {
        margin-top: 30px;
    }
}

@media (max-width: 1499px) {

    .des-hvac,
    .installation-hvac,
    .serve-contain {
        padding-top: 100px;
        padding-bottom: 100px;
    }

    .des-hvac img,
    .installation-inner .h3,
    .des-hvac .h2 {
        margin-bottom: 30px;
    }

    .img-hdvc {
        margin-top: 20px;
    }

    .installation-inner {
        margin-top: 30px;
    }

    .installation-inner .h3,
    .des-principles .h3 {
        font-size: 20px !important;
    }

    .installation-inner span,
    .installation-inner-sub {
        padding-left: 40px;
    }

    .des-principles p {
        margin-bottom: 20px;
    }

    .all-principles {
        margin-top: 40px;
    }

    .single-principles {
        padding-top: 30px;
        padding-bottom: 30px;
    }

    .p-icon-bg {
        margin-right: 30px;
        width: 80px;
        height: 80px;
    }

    .inner-sec-con>*,
    .installation-inner p,
    .installation-inner span ul,
    .installation-inner-sub ul {
        margin-bottom: 20px;
    }

    .serve-inner .inner-sec-con:not(:last-child) {
        padding-bottom: 30px;
        margin-bottom: 30px;
    }

    .serve-contain .h2 {
        margin-bottom: 30px;
    }

    .right-serve>* {
        margin-bottom: 20px;
    }

    .right-serve {
        padding-left: 20px;
    }

    .right-serve .one-dark-btn {
        margin-top: 5px;
    }
}

@media (max-width: 1199px) {

    .des-hvac,
    .installation-hvac,
    .serve-contain {
        padding-top: 80px;
        padding-bottom: 80px;
    }

    .img-hdvc {
        margin-top: 10px;
    }

    .installation-inner .h3,
    .des-principles .h3 {
        font-size: 18px !important;
    }

    .installation-inner span,
    .installation-inner-sub {
        padding-left: 20px;
        width: calc(100% - 250px);
    }

    .installation-inner strong {
        max-width: 250px;
    }

    .des-principles p,
    .inner-sec-con>* {
        margin-bottom: 15px;
    }

    .all-principles {
        margin-top: 30px;
    }

    .single-principles {
        padding-top: 25px;
        padding-bottom: 25px;
    }

    .p-icon-bg {
        margin-right: 25px;
    }

    .serve-inner .inner-sec-con:not(:last-child) {
        padding-bottom: 25px;
        margin-bottom: 25px;
    }

    .right-serve {
        padding-left: 10px;
    }

    .right-serve>*,
    .installation-inner p,
    .installation-inner span ul,
    .installation-inner-sub ul {
        margin-bottom: 15px;
    }

}

@media (max-width: 991px) {
    .right-serve {
        padding-left: 0;
        padding-top: 30px;
    }

    .what-we-section .right-serve {
        padding-top: 0;
    }

    .change-serve-cols .row [class*="col-"]:first-child:has(img) ~ [class*="col-"]:last-child .right-serve {
        padding-top: 30px;
    }

    .change-serve-cols .right-serve {
        padding-top: 0;
    }

}

@media (max-width: 767px) {

    .des-hvac,
    .installation-hvac,
    .serve-contain {
        padding-top: 50px;
        padding-bottom: 50px;
    }

    .des-hvac img,
    .installation-inner .h3,
    .des-hvac .h2 {
        margin-bottom: 20px;
    }

    .img-hdvc {
        margin-top: 5px;
    }

    .installation-hvac .h2 {
        margin-bottom: 15px;
    }

    .installation-inner {
        margin-top: 20px;
    }

    .installation-inner ol li:not(ul li) {
        padding-bottom: 20px;
        margin-bottom: 20px !important;
    }

    .installation-inner ol li div:not(.installation-inner-sub) {
        flex-direction: column;
    }

    .installation-inner span,
    .installation-inner-sub {
        padding-left: 0;
        width: 100%;
    }

    .installation-inner strong {
        max-width: 100%;
        margin-bottom: 10px;
    }

    .des-principles p,
    .inner-sec-con>* {
        margin-bottom: 10px;
    }

    .all-principles {
        margin-top: 20px;
    }

    .single-principles {
        padding-top: 20px;
        padding-bottom: 20px;
    }

    .p-icon-bg {
        width: 60px;
        height: 60px;
        margin-right: 15px;
        margin-left: 0;
        font-size: 36px;
    }

    .serve-inner .inner-sec-con:not(:last-child) {
        padding-bottom: 20px;
        margin-bottom: 20px;
    }

    .serve-contain .h2 {
        margin-bottom: 20px;
    }

    .right-serve>*,
    .installation-inner p,
    .installation-inner span ul,
    .installation-inner-sub ul {
        margin-bottom: 10px;
    }

    .right-serve {
        padding-top: 20px;
    }

    .change-serve-cols .row [class*="col-"]:first-child:has(img) ~ [class*="col-"]:last-child .right-serve {
        padding-top: 20px;
    }

    .installation-inner~.one-dark-btn {
        margin-top: 20px;
    }

    .des-principles .one-dark-btn {
        margin-top: 5px;
    }

}

@media (max-width: 575px) {
    .single-principles {
        flex-direction: column;
    }

    .p-icon-bg {
        margin-right: 0;
        margin-bottom: 10px;
    }
}