* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20, sans-serif;
    color: #222222;
    line-height: 1.5;
}

/* Banner区域 */
.ab-banner {
    position: relative;
    width: 100%;
    height: 560px;
    overflow: hidden;
}

.ab-banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.ab-banner-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.ab-banner-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    height: 100%;
}

.ab-banner-title {
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
    font-weight: normal;
    font-size: 72px;
    color: #222222;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin-bottom: 24px;
}

.ab-banner-subtitle {
    max-width: 424px;
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
    font-weight: normal;
    font-size: 28px;
    color: #333333;
    line-height: 44px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

/* 通用标题样式 */
.ab-section-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.ab-section-title {
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
    font-weight: normal;
    font-size: 36px;
    color: #000000;
    line-height: 36px;
    text-align: center;
    font-style: normal;
    text-transform: none;
}

.ab-section-subtitle {
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
    font-weight: normal;
    font-size: 14px;
    color: #9CA3AF;
    line-height: 14px;
    letter-spacing: 1px;
    text-align: center;
    font-style: normal;
    text-transform: none;
}

/* 关于至佳 */
.ab-about-section {
    padding: 80px 120px;
    background: #FFFFFF;
    display: flex;
    flex-direction: column;
    align-items: center;
    scroll-margin-top: 80px;
}

.ab-about-content {
    width: 1200px;
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.ab-about-middle {
    margin-top: 35px;
    display: flex;
    gap: 24px;
}

.ab-about-image {
    flex: 1;
    aspect-ratio: 588/378;
    flex-shrink: 0;
    overflow: hidden;
}

.ab-about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.intro {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ab-intro-btn {
    margin-top: auto;
    background: #96E633;
    box-shadow: 0px 3px 5px -3px rgba(165, 180, 171, 0.3);
    border-radius: 200px 200px 200px 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    width: fit-content;
}

.ab-intro-btn-text {
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
    font-weight: normal;
    font-size: 18px;
    color: #2F3248;
    text-align: center;
    font-style: normal;
    text-transform: none;
}

.ab-intro-btn img {
    width: 20px;
    height: 20px;
}

.ab-intro-btn-text:hover {
    background: #7fcc29;
}

.ab-about-stats {
    margin-top: 60px;
    padding: 18px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.ab-about-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.ab-stat-number {
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
    font-weight: normal;
    font-size: 50px;
    color: #000000;
    text-align: center;
    font-style: normal;
    text-transform: none;
}

.ab-stat-label {
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
    font-weight: normal;
    font-size: 18px;
    color: #6B7280;
    text-align: center;
    font-style: normal;
    text-transform: none;
}

/* 权威资质与成果 */
.ab-certifications-section {
    padding: 80px 120px;
    display: flex;
    flex-direction: column;
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    scroll-margin-top: 80px;
}

.ab-certifications-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    aspect-ratio: 1440/829;
}

.ab-certifications-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.ab-certifications-text {
    position: relative;
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    height: 100%;
    width: 341px;
    margin-top: 68px;
}

.ab-certifications-text p {
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
    font-weight: normal;
    font-size: 20px;
    color: #000000;
    line-height: 40px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

/* 公司介绍 */
.ab-company-section {
    width: 1440px;
    height: 832px;
    padding-top: 96px;
}

.ab-company-frame {
    position: relative;
    width: 1200px;
    height: 640px;
    margin: 0 auto;
}

.ab-company-inner {
    position: absolute;
    top: 1px;
    left: 0;
    width: 1200px;
    height: 638px;
    border-radius: 48px;
    background: #FFFFFF;
    display: flex;
    overflow: hidden;
}

.ab-company-left {
    width: 717px;
    padding: 48px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.ab-company-title {
    font-size: 36px;
    font-weight: normal;
    color: #000000;
    margin: 0;
    line-height: 1;
}

.ab-company-text {
    font-size: 16px;
    font-weight: normal;
    color: #333333;
    line-height: 1.8;
    margin: 0;
}

.ab-company-right {
    width: 483px;
    height: 638px;
    background: linear-gradient(135deg, #CDCDCD 0%, #ECF3E8 100%);
}

/* 页脚 */
.ab-footer {
    width: 1440px;
    height: 431px;
    background: #050F19;
    position: relative;
    padding: 40px 120px;
}

.ab-footer-top {
    display: flex;
    gap: 24px;
}

.ab-footer-column {
    width: 180px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.ab-footer-title {
    font-size: 18px;
    font-weight: normal;
    color: #FFFFFF;
    margin: 0;
}

.ab-footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ab-footer-link {
    font-size: 12px;
    font-weight: normal;
    color: #748EA6;
    text-decoration: none;
}

.ab-footer-contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ab-footer-phone {
    font-family: Roboto, sans-serif;
    font-size: 24px;
    font-weight: 500;
    color: #FFFFFF;
}

.ab-footer-postcode {
    font-size: 14px;
    font-weight: normal;
    color: #748EA6;
}

.ab-footer-qr-section {
    position: absolute;
    top: 157px;
    right: 268px;
    display: flex;
    gap: 20px;
}

.ab-footer-qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.ab-footer-qr-image {
    width: 108px;
    height: 108px;
    background-image: url('/v2/images/news/banner.png');
    background-size: cover;
    background-position: center;
}

.ab-footer-qr-text {
    font-size: 14px;
    font-weight: normal;
    color: #748EA6;
    margin: 0;
}

.ab-footer-divider {
    position: absolute;
    top: 337px;
    left: 120px;
    width: 1200px;
    height: 0.5px;
    background: #293A49;
}

.ab-footer-bottom {
    position: absolute;
    top: 361px;
    left: 511px;
    width: 418px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.ab-footer-address {
    font-size: 12px;
    font-weight: normal;
    color: #748EA6;
    margin: 0;
}

.ab-footer-copyright {
    font-size: 12px;
    font-weight: normal;
    color: #748EA6;
    margin: 0;
    width: 100%;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .ab-about-stats {
        padding: 18px 120px;
        flex-wrap: wrap;
        gap: 24px;
    }

    .ab-stat-number {
        font-size: 42px;
    }

    .ab-stat-label {
        font-size: 16px;
    }
}

@media (max-width: 992px) {
    .ab-about-stats {
        padding: 18px 120px;
        flex-wrap: wrap;
        gap: 24px;
    }

    .ab-about-stat {
        flex: 0 0 calc(50% - 12px);
        min-width: 150px;
    }

    .ab-stat-number {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .ab-about-stats {
        padding: 18px 120px;
        gap: 24px;
    }

    .ab-about-stat {
        flex: 0 0 calc(50% - 12px);
    }

    .ab-stat-number {
        font-size: 32px;
    }

    .ab-stat-label {
        font-size: 14px;
    }

    .ab-about-section {
        padding: 40px 24px;
    }
}

@media (max-width: 575px) {
    body {
        background: #f6f7fa;
    }

    /* Banner区域 */
    .ab-banner {
        height: 200px;
        margin-top: 60px;
        padding: 60px 22px;
    }

    .ab-banner-title {
        font-size: 34px;
        margin-bottom: 6px;
        line-height: normal;
    }

    .ab-banner-subtitle {
        font-size: 12px;
        line-height: normal;
    }

    /* 关于至佳 */
    .ab-about-section {
        padding: 32px 20px;
        background: #ffffff;
    }

    .ab-about-content {
        width: 100%;
        gap: 48px;
    }

    .ab-section-header {
        gap: 5px;
    }

    .ab-section-title {
        font-size: 20px;
        line-height: 28px;
        color: #0f172b;
    }

    .ab-section-subtitle {
        font-size: 12px;
        color: #90a1b9;
        letter-spacing: 1px;
        line-height: 15px;
    }

    .ab-about-middle {
        flex-direction: column;
        gap: 30px;
        margin-top: 16px;
    }

    .ab-about-image {
        width: 100%;
        aspect-ratio: 390/219;
        border-radius: 16px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.1);
    }

    .ab-about-image img {
        border-radius: 16px;
    }

    .intro {
        gap: 16px;
        align-items: center;
    }

    .intro p {
        font-size: 14px;
        line-height: 24px;
        color: #666666;
        align-self: flex-start;
        width: 100%;
    }

    .ab-intro-btn {
        padding: 14px 40px;
        margin-top: 17px;
        height: 50.5px;
        background: #96E633;
        box-shadow: 0px 4px 6px -4px rgba(216, 249, 153, 0.5), 0px 10px 15px -3px rgba(216, 249, 153, 0.5);
        border-radius: 33554400px 33554400px 33554400px 33554400px;
    }

    .ab-intro-btn-text {
        font-size: 15px;
        font-weight: 700;
        color: #222222;
        font-family: Inter, sans-serif;
    }

    .ab-about-stats {
        padding: 23px;
        gap: 0;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        margin-top: 48px;
        background: rgba(248, 250, 252, 0.5);
        border: 1px solid #f1f5f9;
        border-radius: 20px;
        width: 100%;
        margin-left: 0;
        margin-right: 0;
    }

    .ab-about-stat {
        flex: none;
        width: calc(50% - 12px);
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
        margin-bottom: 29px;
    }

    .ab-about-stat:nth-child(3),
    .ab-about-stat:nth-child(4) {
        margin-bottom: 0;
    }

    .ab-stat-number {
        font-size: 32px;
        color: #222222;
        font-weight: 900;
        font-family: Inter, sans-serif;
        line-height: 1;
    }

    .ab-stat-label {
        font-size: 13px;
        color: #6b7280;
        font-family: Inter, sans-serif;
        line-height: 1.5;
    }

    /* 资质区域 */
    .ab-certifications-section {
        padding: 0;
        height: 530px;
        position: relative;
        overflow: hidden;
    }

    .ab-certifications-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: 1;
    }

    .ab-certifications-bg {
        background-image: url('/v2/images/mobile/about/Qualifications.png');
        background-size: cover;
        background-position: center;
    }

    .ab-certifications-bg img {
        display: none;
    }

    .ab-certifications-section .ab-section-header {
        position: relative;
        z-index: 10;
        padding-top: 47px;
        gap: 9px;
    }

    .ab-certifications-section .ab-section-title {
        font-size: 26px;
        font-weight: 700;
        color: #222222;
        font-family: Inter, sans-serif;
        line-height: 1.5;
    }

    .ab-certifications-section .ab-section-subtitle {
        font-size: 9px;
        color: #9ca3af;
        letter-spacing: 1px;
        font-family: Inter, sans-serif;
        width: 200px;
    }

    .ab-certifications-text {
        position: relative;
        z-index: 10;
        width: calc(100% - 38px);
        height: auto;
        max-width: 350px;
        margin: 31px auto 0;
        padding: 24px;
        background: rgba(255, 255, 255, 0.8);
        box-shadow: 0px 1px 2px -1px rgba(0, 0, 0, 0.1), 0px 1px 3px 0px rgba(0, 0, 0, 0.1);
        border-radius: 16px 16px 16px 16px;
        border: 1px solid rgba(255, 255, 255, 0.5);
    }

    .ab-certifications-text p {
        font-size: 15px;
        font-weight: 500;
        color: #333333;
        line-height: 1.73;
        text-align: center;
        font-family: Inter, sans-serif;
        margin: 0;
    }

    /* 公司介绍 */
    .ab-company-section {
        width: 100%;
        height: auto;
        padding: 32px 16px;
    }

    .ab-company-frame {
        width: 100%;
        height: auto;
    }

    .ab-company-inner {
        width: 100%;
        height: auto;
        flex-direction: column;
        border-radius: 24px;
        overflow: hidden;
    }

    .ab-company-left {
        width: 100%;
        padding: 32px;
        gap: 16px;
    }

    .ab-company-title {
        font-size: 20px;
        line-height: 28px;
    }

    .ab-company-text {
        font-size: 14px;
        line-height: 24px;
        color: #666666;
    }

    .ab-company-right {
        width: 100%;
        height: 200px;
    }

    /* 页脚 */
    .ab-footer {
        width: 100%;
        height: auto;
        padding: 40px 16px 0;
        background: #0b121a;
    }

    .ab-footer-top {
        flex-direction: column;
        gap: 16px;
    }

    .ab-footer-column {
        width: 100%;
        gap: 16px;
    }

    .ab-footer-title {
        font-size: 14px;
        color: #ffffff;
    }

    .ab-footer-links {
        gap: 13px;
    }

    .ab-footer-link {
        font-size: 13px;
        color: #748ea6;
    }

    .ab-footer-contact {
        gap: 16px;
        margin-top: 16px;
    }

    .ab-footer-phone {
        font-size: 20px;
    }

    .ab-footer-postcode {
        font-size: 14px;
    }

    .ab-footer-qr-section {
        position: static;
        display: flex;
        gap: 20px;
        margin-top: 16px;
    }

    .ab-footer-qr-item {
        align-items: flex-start;
    }

    .ab-footer-qr-text {
        font-size: 12px;
    }

    .ab-footer-divider {
        position: static;
        width: 100%;
        height: 1px;
        background: #1d293d;
        margin-top: 24px;
    }

    .ab-footer-bottom {
        position: static;
        width: 100%;
        padding-top: 16px;
        gap: 8px;
    }

    .ab-footer-address,
    .ab-footer-copyright {
        font-size: 10px;
        color: #62748e;
        text-align: center;
    }
}