/* 关于我们 开始 */
.about-section {
    padding: 48px 0 41px;
}

.about-section .about-text {
    float: left;
    width: calc(100% - 600px - 30px);
}

.about-section .about-text h1 { margin-top: 20px;
    font-size: 48px;
    color: #0b3058;
    margin-bottom: 20px;
}

.about-section .about-text p {
    line-height: 1.6em;
    /* text-align: justify; */
    color: #486482;
    margin-top: 29px;
}

.about-section .social-icons-small {
    display: flex;
    gap: 10px;
    margin-top: 34px;
}

.about-section img {
    width: 39px;
    aspect-ratio: 1;
    object-fit: cover;
}

.about-section .about-img {
    float: right;
}

.about-section .about-img img {
    width: 600px;
    aspect-ratio: 600/400;
}

/* 关于我们 结束 */

/* 证书 开始 */
.certificates-section {
    background-color: #0b3058;
    color: #fff;
    padding: 31px 0 53px;
    position: relative;
}

.certificates-section h2 {
    text-align: center;
    font-size: 36px;
}

.certificates-section .certificates-grid {
    display: flex;
    justify-content: center;
    gap: 36px;
    margin-top: 31px;
}

.certificates-section .certificate-img {
    background-color: #fff;
    border: 8px solid #fff;
    box-shadow: 0 0 5px rgba(0, 0, 0, .1);
}

.certificates-section .certificate-img img {
    width: 193px;
    aspect-ratio: 193/273;
    object-fit: cover;
}

.certificates-section .certificate-name {
    line-height: 1.6em;
    font-size: 18px;
    text-align: center;
    margin-top: 14px;
}

/* 证书 结束 */

/* 工厂 开始 */
.factory-section {
    padding: 28px 0 40px;
    text-align: center;
}

.factory-section h2 {
    font-size: 36px;
    color: #0b3058;
}

.factory-section .factory-subtitle {
    color: #486482;
    margin-top: 12px;
}

.factory-section .factory-grid {
    display: grid;
    grid-template-columns: repeat(3, calc(100% / 3 - 124px / 3));
    gap: 23px 62px;
    margin-top: 43px;
}

.factory-section .factory-img img {
    width: 100%;
    aspect-ratio: 350/210;
    object-fit: cover;
}

/* 工厂 结束 */

/* 优势 开始 */
.advantage-section {
    background-color: #f2f8ff;
    padding: 16px 0 31px;
}

.advantage-section h2 {
    font-size: 36px;
    color: #0b3058;
    text-align: center;
}

.advantage-section .advantage-list {
    margin-top: 36px;
}

.advantage-section .advantage-item:nth-child(n+2) {
    margin-top: 34px;
}

.advantage-section .advantage-item h3 {
    font-size: 28px;
    color: #0b3058;
}

.advantage-section .advantage-item p {
    color: #486482;
    margin-top: 7px;
}

.advantage-section .advantage-item a {
    text-decoration: underline;
}

.advantage-section .desc {
    color: #0b3058;
    line-height: 1.6em;
    margin-top: 20px;
}

.advantage-section .contact-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 177px;
    height: 32px;
    background-color: #0F6EEC;
    color: #fff;
    font-size: 14px;
    letter-spacing: 0.1em;
    margin-top: 35px;
    transition: all 0.2s ease, visibility 0s;
}

.advantage-section .contact-btn:hover {
    background-color: #6E7088;
}

/* 优势 结束 */

/* 联系我们 开始 */
.contact-section {
    padding: 26px 0 66px;
}

.contact-section h2 {
    line-height: 1.34em;
    font-size: 32px;
    color: #0b3058;
}

.contact-section .pdf-links {
    display: grid;
    grid-template-columns: repeat(2, calc(50% - 20px));
    gap: 25px 40px;
    margin-top: 22px;
}

.contact-section .pdf-links a {
    color: #3d5671;
    text-decoration: underline;
}

/* 联系我们 结束 */

/* 响应式样式 */

/* 关于我们区域响应式 */
@media (max-width: 992px) {
    .about-section {
        padding: 30px 0 25px;
    }

    .about-section .about-text {
        float: none;
        width: 100%;
    }

    .about-section .about-text h1 {
        font-size: 36px;
        margin-top: 10px;
    }

    .about-section .about-img {
        float: none;
        margin-top: 20px;
    }

    .about-section .about-img img {
        width: 100%;
        aspect-ratio: 600/400;
    }
}

@media (max-width: 768px) {
    .about-section .about-text h1 {
        font-size: 28px;
    }

    .about-section .about-text p {
        font-size: 14px;
        line-height: 1.5em;
    }
}

@media (max-width: 480px) {
    .about-section {
        padding: 20px 0 15px;
    }

    .about-section .about-text h1 {
        font-size: 22px;
        margin-bottom: 12px;
        text-align: center;
    }

    .about-section .about-text p {
        font-size: 14px;
        line-height: 1.4em;
        margin-top: 15px; text-align: center;
    }
}

/* 证书区域响应式 */
@media (max-width: 768px) {
    .certificates-section {
        padding: 20px 0 35px;
    }

    .certificates-section h2 {
        font-size: 28px;
    }

    .certificates-section .certificates-grid {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .certificates-section .certificate-img img {
        width: 150px;
        aspect-ratio: 193/273;
    }

    .certificates-section .certificate-name {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .certificates-section h2 {
        font-size: 22px;
    }

    .certificates-section .certificate-img img {
        width: 120px;
    }

    .certificates-section .certificate-name {
        font-size: 14px;
    }
}

/* 工厂区域响应式 */
@media (max-width: 992px) {
    .factory-section {
        padding: 20px 0 30px;
    }

    .factory-section h2 {
        font-size: 28px;
    }

    .factory-section .factory-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .factory-section h2 {
        font-size: 24px;
    }

    .factory-section .factory-subtitle {
        font-size: 14px;
    }

    .factory-section .factory-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .factory-section .factory-img img {
        aspect-ratio: 4/3;
    }
}

@media (max-width: 480px) {
    .factory-section h2 {
        font-size: 20px;
    }

    .factory-section .factory-subtitle {
        font-size: 12px;
    }

    .factory-section .factory-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .factory-section .factory-img img {
        aspect-ratio: 4/3;
    }
}

/* 优势区域响应式 */
@media (max-width: 992px) {
    .advantage-section {
        padding: 15px 0 25px;
    }

    .advantage-section h2 {
        font-size: 28px;
    }

    .advantage-section .advantage-item h3 {
        font-size: 24px;
    }

    .advantage-section .advantage-item p {
        font-size: 15px;
    }
}

@media (max-width: 768px) {
    .advantage-section h2 {
        font-size: 24px;
    }

    .advantage-section .advantage-item h3 {
        font-size: 20px;
    }

    .advantage-section .advantage-item p {
        font-size: 14px;
    }

    .advantage-section .contact-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .advantage-section {
        padding: 10px 0 20px;
    }

    .advantage-section h2 {
        font-size: 20px;
    }

    .advantage-section .advantage-list {
        margin-top: 20px;
    }

    .advantage-section .advantage-item:nth-child(n+2) {
        margin-top: 20px;
    }

    .advantage-section .advantage-item h3 {
        font-size: 18px;
    }

    .advantage-section .advantage-item p {
        font-size: 12px;
        line-height: 1.5em;
    }

    .advantage-section .desc {
        font-size: 12px;
    }

    .advantage-section .contact-btn {
        width: 100%;
        height: 36px;
        font-size: 13px;
    }
}

/* 联系我们区域响应式 */
@media (max-width: 768px) {
    .contact-section h2 {
        font-size: 26px;
    }

    .contact-section .pdf-links {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .contact-section h2 {
        font-size: 22px;
    }
}