#lu4 {
    background: url(../assets/paper.jpg);
    position: relative;
    padding: 8px 0;
    overflow-x: hidden;
    box-shadow: 0px 8px 12px 6px rgba(0, 0, 0, 0.15), 0px 4px 4px 0px rgba(0, 0, 0, 0.30), 0px -4px 4px 0px rgba(0, 0, 0, 0.30);
}

body.dark #lu4 {
    background: url(../assets/paper_black.jpg);
    background-size: cover;
}


#lu4:before,
#lu4:after {
    content: "";
    position: absolute;
    width: 100%;
    left: 0;
    height: 2px;
    background: linear-gradient(270deg, #4D4336 0.05%, #714A27 63.49%, #8B6849 78.97%, #5E5548 98.45%);
}

body.dark #lu4:before,
body.dark #lu4:after {
    background: linear-gradient(180deg, #877751 0%, #69582A 63.5%, #8B7336 79%, #65562F 98.5%); 
}

#lu4:before {
    bottom: 18px;
}

#lu4:after {
    top: 18px;
}

.lu4_border {
    background: linear-gradient(180deg, #4D4336 0%, #714A27 63.5%, #AA8E75 79%, #5E5548 98.5%);
    width: 100%;
    height: 100%;
    padding: 6px 0;
}

body.dark .lu4_border {
    background: linear-gradient(180deg, #877751 0%, #69582A 63.5%, #8B7336 79%, #65562F 98.5%);
}

.lu4_body {
    padding: 52px 16px 100px;
    background: url(../assets/paper.jpg);
    width: 100%;
    height: 100%;
}

body.dark .lu4_body {
    background: url(../assets/paper_black.jpg);
    background-size: cover;
}

.lu4_text {
    padding: 0 0 16px;
    text-align: center;
    ;
    font-size: 18px;
    line-height: 24px;
}

.lu4_buts {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    justify-content: center;
}

@media (min-width: 875px) {
    .lu4_text {
        font-size: 24px;
        line-height: 32px;
    }
}