.steel_structure_container_8dK3a {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;


    padding: var(--padding-vertical_8dK3a, 5%) var(--padding-horizontal_8dK3a, var(--contentPadding));
}

.steel_structure_container_8dK3a .steel_structure_title_8dK3a {
    font-size: var(--title_size);
    color: var(--text-color-primary_8dK3a);
}

.steel_structure_container_8dK3a .steel_structure_subtitle_8dK3a {
    font-size: var(--subtitle_size);
    color: var(--text-color-secondary_8dK3a);
}

.steel_structure_container_8dK3a .steel_structure_card_title_8dK3a {
    font-size: var(--card_title_size);
    color: var(--card_title_color);
}

.steel_structure_container_8dK3a .steel_structure_card_description_8dK3a {
    font-size: var(--card_description_size);
    color: var(--card_description_color);
}


.why_choose_us_container_inner_6bE2g {
    max-width: var(--contentMaxWidth, 100%);
    margin: 0 auto;
}

.steel_structure_header_8dK3a {
    text-align: center;
    margin-bottom: clamp(4rem, 6vw, 6rem);

}

.steel_structure_title_8dK3a {
    font-size: var(--card_title_size, 4.8rem);
    font-weight: 900;
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
    color: var(--text-color-primary_8dK3a);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.steel_structure_subtitle_8dK3a {
    font-size: clamp(1.6rem, 2.5vw, 2rem);
    color: var(--text-color-secondary_8dK3a);
    line-height: 1.6;
    font-weight: 300;
}

.steel_structure_grid_8dK3a {
    display: grid;
    grid-template-columns: repeat(var(--cols_8dK3a, 4), minmax(0, 1fr));
    gap: clamp(2rem, 3vw, 3rem);
    width: 100%;
    max-width: 100%;
}

.steel_structure_card_link_8dK3a {
    text-decoration: none;
    color: inherit;
    display: flex;
    width: 100%;
    height: 100%;
}

.steel_structure_card_8dK3a {
    background: var(--card-bg-color_8dK3a);
    border-radius: var(--card-border-radius_8dK3a);
    padding: clamp(3rem, 4vw, 4rem);
    text-align: center;
    box-shadow: var(--card-shadow_8dK3a);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-width: 0;

    display: flex;
    flex-direction: column;

}

.steel_structure_card_8dK3a::before {
    content: '';
    position: absolute;
    bottom: -80px;
    right: -80px;
    width: 160px;
    height: 160px;
    background: rgba(var(--theme-color-rgb_8dK3a), 0.1);
    border-radius: 50%;
    transition: all 1.3s ease;
    z-index: 0;
    transform-origin: bottom right;
}

.steel_structure_card_8dK3a::after {
    content: '';
    position: absolute;
    bottom: -65px;
    right: -65px;
    width: 130px;
    height: 130px;
    background: rgba(var(--theme-color-rgb_8dK3a), 0.05);
    border-radius: 50%;
    transition: all 0.4s ease;
    z-index: 0;
    transform-origin: bottom right;
}

.steel_structure_card_8dK3a:hover::before {
    bottom: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    border-radius: 0;
    background: rgba(var(--theme-color-rgb_8dK3a), 1);
}



.steel_structure_card_link_8dK3a:hover .steel_structure_card_8dK3a,
.steel_structure_card_8dK3a:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.steel_structure_card_link_8dK3a:hover .steel_structure_card_title_8dK3a,
.steel_structure_card_link_8dK3a:hover .steel_structure_card_description_8dK3a,
.steel_structure_card_8dK3a:hover .steel_structure_card_title_8dK3a,
.steel_structure_card_8dK3a:hover .steel_structure_card_description_8dK3a {
    color: #ffffff;
}

.steel_structure_card_link_8dK3a:hover .steel_structure_card_divider_8dK3a,
.steel_structure_card_8dK3a:hover .steel_structure_card_divider_8dK3a {
    background: #ffffff;
}

.steel_structure_card_link_8dK3a:hover .steel_structure_icon_wrapper_8dK3a,
.steel_structure_card_8dK3a:hover .steel_structure_icon_wrapper_8dK3a {
    background: #ffffff;
}

.steel_structure_card_link_8dK3a:hover .steel_structure_icon_8dK3a,
.steel_structure_card_8dK3a:hover .steel_structure_icon_8dK3a {
    color: var(--theme-color_8dK3a);
}

.steel_structure_card_link_8dK3a:hover .steel_structure_card_8dK3a::before {
    bottom: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    border-radius: 0;
    background: rgba(var(--theme-color-rgb_8dK3a), 1);
}


.steel_structure_icon_wrapper_8dK3a {
    width: 90px;
    height: 90px;
    background: var(--theme-color_8dK3a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2.5rem;
    position: relative;
    z-index: 1;
    transition: background 0.4s ease;
}

.steel_structure_icon_8dK3a {
    font-size: 48px;
    color: var(--icon-color_8dK3a);
    transition: color 0.4s ease;
    font-style: normal;
    font-weight: normal;
    display: inline-block;
}



.steel_structure_card_title_8dK3a {
    font-size: clamp(1.6rem, 2vw, 2rem);
    font-weight: 700;
    color: #374151;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
    position: relative;
    z-index: 1;
    line-height: 1.3;
}

.steel_structure_card_divider_8dK3a {
    width: 60px;
    height: 2px;
    background: var(--divider-color_8dK3a);
    border: none;
    margin: 1.5rem auto;
    position: relative;
    z-index: 1;
}

.steel_structure_card_description_8dK3a {
    font-size: clamp(1.4rem, 1.8vw, 1.6rem);
    color: #6b7280;
    line-height: 1.6;
    position: relative;
    z-index: 1;
    flex: 1;
}

/* 响应式布局 */
@media (max-width: 960px) {
    .steel_structure_grid_8dK3a {
        grid-template-columns: 1fr;
        gap: clamp(2rem, 3vw, 2.5rem);
    }

    .steel_structure_title_8dK3a {
        font-size: clamp(2.4rem, 5vw, 3.6rem);
    }

    .steel_structure_subtitle_8dK3a {
        font-size: clamp(1.4rem, 2.5vw, 1.8rem);
    }
}

@media (max-width: 640px) {
    .steel_structure_container_8dK3a {
        padding: var(--padding-vertical_8dK3a, var(--padding-vertical_8dK3a, 3rem)) var(--padding-horizontal_8dK3a, var(--padding-horizontal_8dK3a, 2rem));
        min-height: clamp(500px, 70vh, 800px);
    }

    .steel_structure_header_8dK3a {
        margin-bottom: 3rem;
    }

    .steel_structure_title_8dK3a {
        font-size: clamp(2.2rem, 5vw, 3rem);
        margin-bottom: 1.5rem;
    }

    .steel_structure_subtitle_8dK3a {
        font-size: clamp(1.3rem, 2.5vw, 1.6rem);
    }

    .steel_structure_grid_8dK3a {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .steel_structure_card_8dK3a {
        padding: 2.5rem;
    }

    .steel_structure_icon_wrapper_8dK3a {
        width: 75px;
        height: 75px;
        margin-bottom: 2rem;
    }

    .steel_structure_icon_8dK3a {
        font-size: 38px;
    }

    .steel_structure_card_title_8dK3a {
        font-size: 1.6rem;
        margin-bottom: 1.2rem;
    }

    .steel_structure_card_description_8dK3a {
        font-size: 1.3rem;
    }

    .steel_structure_card_divider_8dK3a {
        margin: 1.2rem auto;
    }
}