.bann {
    width: 1400px;
    height: auto;
    position: relative;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    margin-top: 60px;
}

.bann-introduce {
    width: 100%;
    height: auto;
    background-color: #ffffff;
    padding-bottom: 60px;
}

.introduce-title {
    width: 100%;
    height: 100px;
    color: #000000;
    text-indent: 2em;
    line-height: 100px;
    border-bottom: 2px solid rgb(196, 196, 196, 0.2);
}

.introduce-content {
    width: 100%;
    height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 50px 0;
}

.introduce-left {
    width: 700px;
    height: 100%;
    float: left;
}

.left-text {
    width: 600px;
    height: auto;
    float: left;
    margin: 80px 50px 0px 50px;
}

.left-text p {
    color: #666666;
    text-indent: 2em;
    line-height: 30px;
}

.introduce-right {
    width: 700px;
    height: 100%;
    float: left;
    display: flex;
    justify-content: center;
    align-items: center;
}

.introduce-right img {
    width: 650px;
    height: auto;
}

/* 荣誉资质样式 */
.bann-certification {
    width: 100%;
    height: auto;
    background-color: #fff;
    margin-top: 60px;
    padding-bottom: 60px;
}

.certification-title {
    width: 100%;
    height: 100px;
    color: #000000;
    text-indent: 2em;
    line-height: 100px;
    border-bottom: 2px solid rgb(196, 196, 196, 0.2);
    font-size: 28px;
    font-weight: bold;
}

.certification-subtitle {
    width: 100%;
    text-align: center;
    padding: 30px 0;
    color: #666666;
    font-size: 16px;
    line-height: 1.8;
}

.certification-content {
    width: 1300px;
    margin: 40px auto 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
}

.certification-item {
    width: 413px;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.certification-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.certification-item img {
    width: 413px;
    height: 280px;
    object-fit: cover;
    display: block;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.certification-item:hover img {
    transform: scale(1.05);
}

.certification-name {
    padding: 20px;
    text-align: center;
    background-color: #f9f9f9;
    border-top: 1px solid #eaeaea;
}

.certification-name h3 {
    margin: 0;
    font-size: 16px;
    color: #333;
    font-weight: normal;
    line-height: 1.5;
}

/* 响应式布局 */
@media screen and (max-width: 1400px) {
    .bann {
        width: 100%;
        padding: 0 20px;
    }
    
    .certification-content {
        width: calc(100% - 40px);
        margin: 40px auto 0;
    }
    
    .certification-item {
        width: calc(33.333% - 20px);
    }
}

@media screen and (max-width: 768px) {
    .certification-content {
        flex-direction: column;
        align-items: center;
    }
    
    .certification-item {
        width: 100%;
        max-width: 400px;
    }
    
    .certification-item img {
        width: 100%;
        height: auto;
    }
}