/* 公司结构样式 */
.company-structure {
    margin: 50px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.parent-company {
    margin-bottom: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    text-align: center;
}

.company-card {
    background-color: #fff;
    border-top: 4px solid #06c;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, .05);
    padding: 30px;
    transition: all .3s ease;
    margin: 0 auto;
    display: block;
}

.parent-company .company-card {
    max-width: 90%;
    margin: 0 auto;
    width: 90%;
}

@media (min-width: 992px) {
    .parent-company .company-card {
        max-width: 80%;
        width: 80%;
        margin: 0 auto;
    }
}

.company-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, .1);
}

.company-card h3 {
    color: #06c;
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-align: center;
    position: relative;
    padding-bottom: 10px;
}

.company-card h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #06c;
}

.company-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (min-width: 768px) {
    .company-content {
        flex-direction: row;
        align-items: center;
    }
}

.company-image {
    flex: 1;
    text-align: center;
}

.company-image img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, .1);
}

.company-description {
    flex: 2;
    color: #666;
    line-height: 1.8;
}

.company-description p {
    margin-bottom: 15px;
    font-size: 1.05rem;
}

/* 子公司样式 */
.subsidiary-companies {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    position: relative;
}

@media (min-width: 768px) {
    .subsidiary-companies {
        grid-template-columns: repeat(2, 1fr);
    }
}

.company-card.subsidiary {
    border-top: 4px solid #06c;
}

/* 资质证书样式 */
.qualification-section {
    margin: 60px 0;
    padding: 20px 0;
}

.qualification-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 30px;
    color: #666;
    font-size: 1.1rem;
}

.qualification-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, .05);
    padding: 30px;
    transition: all .3s ease;
}

.qualification-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, .1);
}

.qualification-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (min-width: 768px) {
    .qualification-images {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 992px) {
    .qualification-images {
        grid-template-columns: repeat(5, 1fr);
    }
}

.qualification-image {
    text-align: center;
}

.qualification-image img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    transition: all .3s ease;
    box-shadow: 0 3px 10px rgba(0, 0, 0, .1);
}

.qualification-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 0, 0, .2);
}