.page {
    background-color: var(--gray-700);
    overflow: visible;
}
.page * {
    color: var(--white);
}

.footer {
    background-color: var(--gray-700);
}

/*-- sec_box --*/
.sec_box > * {
    opacity: 0;
    transform: translateY(20px);
}
.sec_name {
    width: fit-content;
    margin: 0 auto 32px;
    padding: 10px 20px;
    border-radius: var(--radius);
    background-color: var(--primary);
    font-size: var(--ft20);
    font-weight: var(--medium);
}
.sec_title {
    margin-bottom: 40px;
    font-size: var(--ft50);
    font-weight: var(--semi-bold);
}
.sec_text {
    font-size: var(--ft28);
    font-weight: var(--medium);
}

/*-------------------------- sec1 --------------------------*/
.sec1 {
    width: 100%;
    height: 100svh;
}
.main_bg {
    width: 100%;
    height: 100%;
}
.main_bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background-color: var(--gray-500);
}
.main_inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.00) 0%, #111 100%);
    position: absolute;
    top: 0;
    left: 0;
}
.main_inner > div {
    width: 100%;
    height: 100%;
    padding-bottom: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.main_title {
    margin-bottom: 32px;
    font-size: var(--ft50);
    font-weight: var(--semi-bold);
    text-align: center;
}
.main_text {
    font-size: var(--ft22);
    font-weight: var(--semi-bold);
    text-align: center;
}
.main_btn {
    display: none;
}
.scroll_down {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    position: absolute;
    bottom: 250px;
    animation: scroll .8s alternate infinite;
}
@keyframes scroll {
    to {
        transform: translateY(-10px);
    }
}
.scroll_down p {
    font-size: var(--ft14);
    font-weight: var(--semi-bold);
    opacity: .6;
}
.scroll_icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--white-100);
    display: flex;
    justify-content: center;
    align-items: center;
}
.scroll_icon img {
    width: 10px;
    height: 10px;
}


/*-------------------------- sec2 --------------------------*/
.sec2 {
    margin-top: var(--sec-gap);
}

/*-- solution_wrap --*/
.solution_wrap {
    margin-top: 100px;
    width: 100%;
    height: 450vh;
    position: relative;
}
.sticky_pin {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    opacity: 0;
}
.sticky {
    width: 100%;
    height: calc(100vh - 40px);
    position: sticky;
    top: 20px;
    left: 0;
}

/*-- solution_list --*/
.solution_list {
    width: 100%;
    height: 100%;
    display: flex;
    gap: 10px;
    overflow: hidden;
}
.solution_list li {
    width: 100%;
    height: 100%;
    border-radius: var(--radius);
    background-color: var(--gray-600);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateY(20px);
    opacity: 0;
}
.solution_top {
    opacity: 0;
    transform: translateX(-20px);
}
.solution_eng {
    margin-bottom: 24px;
    font-size: var(--ft24);
    font-weight: var(--semi-bold);
    color: #991414;
}
.solution_title {
    margin-bottom: 40px;
    font-size: var(--ft50);
    font-weight: var(--semi-bold);
}
.solution_text {
    font-size: var(--ft22);
    font-weight: var(--medium);
}
.solution_img {
    width: 780px;
}

/*-- solution_box_list --*/
.solution_box_list {
    position: absolute;
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
}
.solution_box {
    width: 100%;
    height: calc(100vh - 40px);
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
}
.solution_box:last-child {
    position: absolute;
    top: 0;
    left: 0;
    margin-top: 100vh;
}
.solution_bg {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}
.solution_bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.solution_inner {
    width: 100%;
    height: 100%;
    padding: 160px 70px 30px;
    background-color: var(--bg);
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.solution_btm {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius);
    background-color: var(--white-100);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    justify-content: space-between;
    opacity: 0;
    transform: translateY(-20px);
}
.situation {
    width: 100%;
    padding: 40px;
    display: flex;
    gap: 70px;
}
.situation > p {
    font-size: var(--ft22);
    font-weight: var(--semi-bold);
}
.situation_list {
    display: grid;
    grid-template-rows: repeat(2, auto); 
    grid-auto-flow: column; 
    gap: 16px 40px;
}
.situation_list li {
    display: flex;
    align-items: center;
    gap: 12px;
}
.situation_list span {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    background-color: var(--white-100);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: var(--ft14);
    flex-shrink: 0;
}
.situation_list p {
    font-size: var(--ft18);
    font-weight: var(--medium);
}
.solution_contact {
    width: 100%;
    max-width: 320px;
    padding: 0 10px;
    border-radius: var(--radius);
    background-color: var(--primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    cursor: pointer;
}
.solution_contact img {
    width: 32px;
    height: 32px;
}
.solution_contact p {
    font-size: var(--ft20);
    font-weight: var(--semi-bold);
    text-align: center;
}


/*-------------------------- sec3 --------------------------*/
.sec3 {
    margin-top: var(--sec-gap);
}
.process_list {
    margin-top: 80px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}
.process_list li {
    width: 100%;
    height: 500px;
    padding: 50px 40px;
    border-radius: var(--radius);
    background-color: var(--gray-600);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transform: translateY(20px);
    opacity: 0;
}
.process_list li.primary {
    background-color: var(--primary);
}
.process_num {
    font-size: var(--ft32);
}
.process_title {
    margin-bottom: 20px;
    font-size: var(--ft24);
    font-weight: var(--semi-bold);
}
.process_text {
    font-size: var(--ft18);
    font-weight: var(--medium);
}
.process_btn {
    width: 100%;
    height: 60px;
    padding: 0 20px;
    margin-top: 32px;
    border-radius: var(--radius);
    background-color: var(--white-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}
.process_btn div {
    display: flex;
    align-items: center;
    gap: 10px;
}
.process_btn div img {
    width: 16px;
    height: 16px;
}
.process_btn div p {
    font-size: var(--ft18);
    font-weight: var(--semi-bold);
}
.process_btn > img {
    width: 14px;
    height: 14px;
}

@media all and (max-width: 1600px) {
    .sec_title {
        font-size: var(--ft45);
    }
    .sec_text {
        font-size: var(--ft24);
    }

    /*-- sec1 --*/
    .main_title {
        font-size: var(--ft45);
    }

    /*-- sec2 --*/
    .solution_eng {
        margin-bottom: 16px;
        font-size: var(--ft20);
    }
    .solution_img {
        width: 70%;
        max-width: 400px;
    }
    .solution_title {
        margin-top: 24px;
        font-size: var(--ft40);
    }
    .solution_text {
        font-size: var(--ft18);
    }
    .situation {
        padding: 24px 32px;
        flex-direction: column;
        gap: 24px;
    }
    .situation_list p {
        font-size: var(--ft16);
    }
    .solution_contact p {
        font-size: var(--ft18);
    }
    .solution_inner {
        padding-top: 120px;
    }

    /*-- sec3 --*/
    .process_list li {
        height: 100%;
    }
    .process_list {
        grid-template-columns: repeat(2, 1fr);
    }
    .process_num {
        margin-bottom: 32px;
    }
}

@media all and (max-width: 1400px) {
    .sec_name {
        font-size: var(--ft18);
        margin-bottom: 24px;
    }
    .sec_title {
        margin-bottom: 30px;
        font-size: var(--ft40);
    }
    .sec_text {
        font-size: var(--ft22);
    }

    /*-- sec1 --*/
    .main_title {
        font-size: var(--ft40);
    }
    .main_text {
        font-size: var(--ft18);
    }

    /*-- sec2 --*/
    .solution_wrap {
        height: fit-content;
    }
    .solution_list,
    .sticky_pin {
        display: none;
    }
    .sticky {
        height: fit-content;
        position: static;
    }
    .solution_box_list {
        height: fit-content;
        opacity: 1;
        pointer-events: all;
    }
    .solution_box_list {
        position: static;
    }
    .solution_box {
        height: fit-content;
        border-radius: var(--radius);
        overflow: hidden;
        position: relative;
    }
    .solution_box:last-child {
        margin-top: 20px;
        position: relative;
    }
    .solution_inner {
        padding: 80px 60px 40px;
    }
    .solution_eng {
        font-size: var(--ft16);
    }
    .solution_title {
        margin-bottom: 24px;
        font-size: var(--ft36);
    }
    .solution_text {
        font-size: var(--ft18);
    }
    .solution_btm {
        margin-top: 80px;
    }
    .solution_contact img {
        width: 26px;
        height: 26px;
    }
    .solution_contact {
        max-width: 200px;
    }
    .solution_contact p {
        font-size: var(--ft16);
    }
}

@media all and (max-width: 1200px) {
    .sec_title {
        font-size: var(--ft36);
    }
    /*-- sec1 --*/
    .main_title {
        margin-bottom: 20px;
        font-size: var(--ft36);
    }
    .scroll_down {
        bottom: 230px;
    }

    /*-- sec2 --*/
    .solution_inner {
        padding: 80px 32px 32px;
    }
    .solution_btm {
        margin-top: 40px;
        padding: 24px;
    }
    .situation {
        padding: 24px 0;
    }
    .situation_list {
        grid-template-columns: repeat(1, 1fr);
        grid-auto-flow: row;
    }
    .solution_btm {
        flex-direction: column;
    }
    .solution_contact {
        max-width: 100%;
        padding: 20px;
        flex-direction: row;
    }

    /*-- sec3 --*/
    .process_list li {
        padding: 40px 32px;
    }
}

@media all and (max-width: 1024px) {
    .h_top {
        background-color: var(--black-500);
    }
    .h_inner {
        border: none
    }
    .h_menu {
        color: var(--white);
    }
    .h_nav li.active .h_menu {
        color: var(--white);
        background-color: var(--white-100);
    }

    /*-- sec1 --*/
    .main_inner > div {
        padding-bottom: 0;
    }
    .scroll_down {
        bottom: 80px;
        right: 20px;
    }
    .main_btn {
        margin-top: 50px;
        width: 240px;
        height: 50px;
        border-radius: var(--radius);
        background-color: var(--primary);
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: var(--ft16);
        font-weight: var(--semi-bold);
    }
}

@media all and (max-width: 768px) {
    .sec_name {
        margin-bottom: 12px;
        padding: 8px 14px;
        font-size: var(--ft16);
    }
    .sec_title {
        margin-bottom: 16px;
        font-size: var(--ft28);
    }
    .sec_text {
        font-size: var(--ft18);
    }

    /*-- sec1 --*/
    .main_title {
        font-size: var(--ft28);
    }
    .main_text {
        font-weight: var(--medium);
    }

    /*-- sec2 --*/
    .solution_bg {
        position: static;
    }
    .solution_bg video {
        border-radius: var(--radius);
        overflow: hidden;
    }
    .solution_inner {
        margin-top: 20px;
        padding: 0;
        background: none;
    }
    .solution_title {
        margin-bottom: 16px;
        font-size: var(--ft24);
    }
    .solution_text {
        font-size: var(--ft16);
    }
    .solution_btm {
        margin-top: 32px;
        padding: 20px;
    }
    .situation > p {
        font-size: var(--ft20);
    }
    .situation_list span {
        width: 22px;
        height: 22px;
    }
    .solution_contact img {
        width: 18px;
        height: 18px;
    }

    /*-- sec3 --*/
    .process_list {
        margin-top: 40px;
        grid-template-columns: repeat(1, 1fr);
    }
    .process_list li {
        background-color: var(--white-100);
        padding: 32px 20px;
    }
    .process_num {
        font-size: var(--ft24);
        margin-bottom: 24px;
    }
    .process_title {
        margin-bottom: 12px;
        font-size: var(--ft20);
    }
    .process_text {
        font-size: var(--ft16);
        font-weight: var(--normal);
    }
}