/* === 1. Block: About Intro (合并 about-hero 和 about-company) === */
.about-intro {
    background-color: var(--color-white);
}

.about-intro .container {
    display: flex;
    flex-direction: column;
}

/* 标题和描述 - 居中 */
.about-intro .about-hero__subtitle {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-lg);
    color: var(--color-text);
    text-align: center;
    margin-top: var(--space-2xl);
}

.about-intro .about-hero__desc {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    /*max-width: 800px;*/
    margin: 0 auto var(--space-2xl);
    line-height: var(--line-height-loose);
    text-align: center;
}

/* PC端内容区域：2x2网格布局 */
.about-intro__content {
    display: grid;
    grid-template-columns: 1.2fr 0.2fr 0.6fr 2fr;
    grid-template-rows: auto 0.2fr 0.6fr 0.2fr;
    gap: var(--space-2xs) var(--space-sm);
    align-items: start;
    margin-right: calc(-1 * (50vw - 50%));
}

/* PC端：公司介绍文字（左上） */
.about-intro .about-company__text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-loose);
    text-align: justify;
    margin: 0;
    position: relative;
    padding-top: var(--space-md);
    grid-column: 1 / 4;
    grid-row: 1;
    max-width: 100%;
}

.about-intro .about-company__text::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: black;
}

/* PC端：第一张图片（左下）- 缩小尺寸 */
.about-intro .about-company__img-small {
    margin-bottom: 60px;
    overflow: hidden;
    aspect-ratio: 3/2;
    padding: 10px;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    grid-column: 1;
    grid-row: 3 / 5;
    max-width: 85%;
    align-self: start;
}

.about-intro .about-company__img-small img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* PC端：第二张图片（右下）- 增大尺寸并下沉到底部 */
.about-intro .about-company__img-large {
    display: block;
    grid-column: 3 / 5;
    grid-row: 2 / 5;
    align-self: end;
    margin-left: auto;
    margin-right:10px;
}

.about-intro .about-company__img-large img {
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: bottom right;
    display: block;
}

/* 保留旧类名兼容性 */
.about-hero {
    text-align: center;
    padding: var(--space-2xl) 0 var(--space-xl);
    background-color: var(--color-white);
}

.about-company {
    padding: var(--space-xl) 0;
    padding-bottom: 0;
    background-color: var(--color-white);
}

.about-company__images {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--space-xl);
    align-items: flex-start;
}

/* === 3. Block: About Stats Section === */
.about-stats-section {
    padding: var(--space-5xl) 0;
    background-color: rgb(243, 243, 243);
}

/* New Stats Module - Desktop: 2 rows (top 2, bottom 3) */
.about-stats-new {
    max-width: 1200px;
    margin: 0 auto var(--space-xs);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: relative;
}

.about-stats-new__row {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: var(--space-md) 0;
}

.about-stats-new__row--top {
    gap: 0;
    padding-bottom: 0;
}

.about-stats-new__row--bottom {
    gap: 0;
    padding-top: 0;
}

.about-stats-new__item {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
    /*padding: var(--space-md) var(--space-xl);*/
}

.about-stats-new__row--top .about-stats-new__item {
    flex: 0 0 auto;
}

.about-stats-new__row--bottom .about-stats-new__item {
    flex: 1;
    justify-content: center;
}

.about-stats-new__number {
    font-family: DINCcond-Bold, serif;
    font-size: var(--font-size-5xl);
    font-weight: 900;
    color: var(--color-text);
    line-height: 1;
}

.about-stats-new__number sup {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    vertical-align: super;
    margin-left: 2px;
}

.about-stats-new__label {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    line-height: 1.4;
    white-space: nowrap;
}

.about-stats-new_down_number {
    font-family: DINCcond-Bold, serif;
    font-size: var(--font-size-4xl);
    font-weight: 900;
    color: var(--color-text);
    line-height: 1;
}

.about-stats-new_down_number sup {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    vertical-align: super;
    margin-left: 2px;
}

.about-stats-new_down_label {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    line-height: 1.4;
    white-space: nowrap;
}

/* Vertical divider between items - extended to touch horizontal line */
.about-stats-new__divider {
    width: 1px;
    height: calc(50px + var(--space-md) * 2);
    background-color: black;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    margin: 0 45px;
}

/* Horizontal divider between rows */
.about-stats-new__divider-h {
    width: 100%;
    height: 1px;
    background-color: black;
    position: relative;
    z-index: 0;
}

/* Stats Layout - Left: stats+text, Right: images */
.about-stats-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.about-stats-layout__left {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.about-stats-layout__text {
    font-size: var(--font-size-base);
    color: var(--color-text);
    line-height: var(--line-height-loose);
    text-align: justify;
    max-width: 800px;
}

.about-stats-layout__right {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    width: 74%;
}

.about-stats-layout__img-main img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.about-stats-layout__img-row img {
    width: 100%;
    height: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
    background-color: var(--color-bg-alt);
}

/* === 4. Block: About Technology === */
.about-tech {
    padding: var(--space-5xl) 0;
}

.about-tech__showcase {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.about-tech__images {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.about-tech__img-main {
    overflow: hidden;
    background-color: var(--color-white);
}

.about-tech__img-main img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.about-tech__img-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
}

.about-tech__img-row img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background-color: var(--color-white);
}

/* Top row images - same height */
.about-tech__img-row--top {
    align-items: stretch;
}

.about-tech__img-row--top img {
    aspect-ratio: 4/3;
}

/* Bottom images row - same line */
.about-tech__bottom-images {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-md);
    max-width: 900px;
    margin-left: auto;
    margin-right: 150px;
    align-items: center;
}

.about-tech__bottom-images img {
    height: auto;
    object-fit: contain;
    display: block;
}
.about-tech__bottom-image-left {
    width: 100%;
}
.about-tech__bottom-image-right {
    width: 100%;
}
.about-tech__content {
    padding-top: var(--space-2xs);
}

.about-tech__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-2xs);
    color: var(--color-text);
}

.about-tech__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.about-tech__list li {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    line-height: var(--line-height-loose);
    padding-left: 14px;
    position: relative;
    margin-bottom: 4px;
}

.about-tech__list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 15px;
    width: 8px;
    height: 3px;
    background-color: var(--color-text);
}

/* === 5. Block: About Certificates === */
.about-certs-section {
    padding: var(--space-5xl) 0;
    background-color: var(--color-border);
}

.about-section-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.about-section-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-loose);
    margin-bottom: var(--space-xl);
    /*max-width: 900px;*/
}

.about-certs-slider {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 40px; /* 为左右箭头留出空间 */
}

.about-certs-slider__track {
    display: flex;
    gap: var(--space-md);
    overflow-x: hidden; /* 隐藏溢出部分 */
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    /*width: calc(200px * 4 + var(--space-md) * 3); /* 4张图片宽度 + 3个间距 */
}

.about-certs-slider__track::-webkit-scrollbar {
    display: none;
}

.about-certs-slider__item {
    flex-shrink: 0;
    height: 420px;
    width: 290px;
    aspect-ratio: 3/4;
    background-color: var(--color-bg-alt);
    overflow: hidden;
}

.about-certs-slider__item_h {
    flex-shrink: 0;
    height: 420px;
    width: 600px;
    aspect-ratio: 3/4;
    background-color: var(--color-bg-alt);
    overflow: hidden;
}

.about-certs-slider__item img,
.about-certs-slider__item_h img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-certs-slider__btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    cursor: pointer;
    color: var(--color-text);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.about-certs-slider__btn:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* Slider Arrows - Consistent with case-detail gallery */
.about-certs-slider__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: black;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
}

.about-certs-slider__arrow:hover {
    background-color: var(--color-bg-alt);
}

.about-certs-slider__arrow--left {
    left: 0;
}

.about-certs-slider__arrow--right {
    right: 0;
}

.about-certs-slider__arrow svg {
    width: 40px;
    height: 40px;
    color: white;
}

/* Slider Arrow Disabled State */
.about-certs-slider__arrow--disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.about-certs-slider__more {
    display: none;
}

.about-certs-slider__more_map {
    display: none;
}

/* === 6. Block: About Service === */
.about-service {
    padding: var(--space-5xl) 0 var(--space-3xl);
    background-color: var(--color-white);
}

.about-service__desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-loose);
    margin-bottom: var(--space-xl);
    max-width: 900px;
}

.about-service__map {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.about-service__map img {
    width: 100%;
    height: auto;
    display: block;
}

/* === Map Hotspot & Tooltip Styles === */
.map-hotspot {
    position: absolute;
    width: 20px;
    height: 20px;
    transform: translate(-50%, -50%);
    cursor: pointer;
    z-index: 9;
}

.map-hotspot:hover,
.map-hotspot--active {
    z-index: 111;
}

.map-hotspot__dot {
    display: block;
    width: 8px;
    height: 8px;
    background-color: #333333;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: all var(--transition-base);
    z-index: 10;
}

.map-hotspot:hover .map-hotspot__dot,
.map-hotspot--active .map-hotspot__dot {
    background-color: #000000;
    width: 10px;
    height: 10px;
    z-index: 10;
}

/* Blue marker style for headquarters and branch - always hidden */
.map-hotspot--blue .map-hotspot__dot,
.map-hotspot--blue:hover .map-hotspot__dot,
.map-hotspot--blue.map-hotspot--active .map-hotspot__dot {
    background-color: transparent;
    width: 20px;
    height: 20px;
    box-shadow: none;
    z-index: 10;
}

.map-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    min-width: 180px;
    max-width: 260px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    pointer-events: none;
    z-index: 11;
}

.map-tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--color-white);
    z-index: 11;
}

.map-hotspot:hover .map-tooltip,
.map-hotspot--active .map-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-12px);
    z-index: 100;
}

.map-tooltip__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--space-2xs);
    white-space: nowrap;
}

.map-tooltip__address {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
}

.about-service__marker {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.about-service__marker--hq {
    right: 25%;
    top: 45%;
}

.about-service__marker::before {
    content: "";
    width: 12px;
    height: 12px;
    background-color: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(0, 114, 206, 0.3);
}

.about-service__marker-label {
    font-size: var(--font-size-xs);
    color: var(--color-text);
    background-color: var(--color-white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    white-space: nowrap;
}

.auto-scroll-container {
    height: 100vh;
    overflow-y: auto;
    scroll-snap-type: y mandatory;
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    position: relative;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.auto-scroll-container::-webkit-scrollbar {
    display: none;
}

.auto-scroll-slide {
    height: calc(100vh - var(--header-height));
    scroll-snap-align: start;
    scroll-snap-stop: always;
    position: relative;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.auto-scroll-slide > .container {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auto-scroll-slide-first {
    height: auto;
    min-height: auto;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    width: 100%;
    display: block;
}

.auto-scroll-slide-first > .container {
    height: auto;
    max-height: none;
}


/* ============================================
   Mobile Styles - About Page
   ============================================ */
@media (max-width: 768px) {
    /* Page Title Mobile */
    .page-title {
        padding: calc(var(--header-height) + var(--space-lg))
            var(--container-padding) var(--space-lg);
        margin: 0 calc(-1 * var(--container-padding));
    }

    /* About Hero Mobile - 按照设计图 */
    .about-hero {
        padding: var(--space-xl) 0;
        text-align: center;
        background-color: var(--color-white);
    }

    .about-hero__subtitle {
        font-size: 24px;
        font-weight: var(--font-weight-bold);
        margin-bottom: var(--space-lg);
        color: var(--color-text);
        text-align: center;
    }

    .about-hero__desc {
        font-size: var(--font-size-base);
        text-align: left;
        margin: 0 0 var(--space-lg) 0;
        color: var(--color-text-secondary);
        line-height: 1.8;
    }

    /* About Intro Mobile - 按照设计图重构布局 */
    .about-intro {
        padding: var(--space-md) 0 var(--space-md);
        background-color: var(--color-white);
        display: flex;
        flex-direction: column;
    }

    /* 移动端：container使用contents让子元素可以统一排序 */
    .about-intro .container {
        display: contents;
    }

    /* 标题 */
    .about-intro .about-hero__subtitle {
        font-size: 24px;
        font-weight: var(--font-weight-bold);
        margin-top: var(--space-md);
        margin-bottom: var(--space-lg);
        padding-top: 0;
        color: var(--color-text);
        text-align: center;
    }

    /* 移动端内容区域：垂直排列 */
    .about-intro__content {
        display: flex;
        flex-direction: column;
    }

    /* 描述文字 - 在副标题下方 */
    .about-intro .about-hero__desc {
        font-size: var(--font-size-base);
        text-align: left;
        margin: 0 var(--space-sm) var(--space-lg) var(--space-sm);
        color: var(--color-text-secondary);
        line-height: 1.8;
        max-width: 100%;
        order: 2;
    }

    /* 第一张图片（company-aerial.png）- 带边框效果，在描述文字上方 */
    .about-intro .about-company__img-small {
        flex: none;
        width: 100%;
        max-width: 100%;
        margin: 0 0 var(--space-lg) 0;
        aspect-ratio: 16/12;
        border: 1px solid var(--color-border);
        padding: var(--space-sm);
        background-color: var(--color-white);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        order: 1;
        grid-column: auto;
        grid-row: auto;
    }

    .about-intro .about-company__img-small img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

    /* 公司介绍文字 - 在第一张图片下方 */
    .about-intro .about-company__text {
        max-width: 100%;
        font-size: var(--font-size-base);
        margin: 0 var(--space-sm) var(--space-lg) var(--space-sm);
        text-align: left;
        line-height: 1.8;
        color: var(--color-text-secondary);
        order: 3;
        position: relative;
        padding-top: var(--space-md);
        flex: none;
        grid-column: auto;
        grid-row: auto;
    }

    /* 公司介绍文字顶部横线 */
    .about-intro .about-company__text::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 40px;
        height: 3px;
        background-color: var(--color-text);
        display: block;
    }

    /* 第二张图片（company-building-blue.png）- 全宽显示 */
    .about-intro .about-company__img-large {
        display: block;
        width: calc(100% + var(--container-padding) * 2);
        margin: 0 calc(-1 * var(--container-padding));
        order: 4;
        grid-column: auto;
        grid-row: auto;
    }

    .about-intro .about-company__img-large img {
        width: 100%;
        height: auto;
        object-fit: cover;
        display: block;
    }

    /* 保留旧类名兼容性 */
    .about-company {
        padding: 0 0 var(--space-lg) 0;
    }

    .about-company__images {
        display: flex;
        flex-direction: column;
        gap: var(--space-lg);
        margin-bottom: var(--space-lg);
    }

    .about-company__text::before {
        display: none;
    }

    /* About Stats Mobile - 按照设计图 2x2+1x3 网格布局 */
    .about-stats-section {
        padding: var(--space-lg) 0;
        background-color: rgb(243, 243, 243);
    }

    .about-stats-layout {
        display: flex;
        flex-direction: column;
        gap: var(--space-lg);
    }

    /* 左侧区域：统计数字 + 描述文字 */
    .about-stats-layout__left {
        order: 1;
        display: flex;
        flex-direction: column;
    }

    /* 统计数字区域 */
    .about-stats-new {
        order: 1;
        margin-bottom: -50px;
    }

    /* 描述文字在统计数字下方 */
    .about-stats-layout__text {
        order: 2;
        font-size: var(--font-size-base);
        max-width: 100%;
        text-align: left;
        line-height: 1.8;
        color: var(--color-text-secondary);
        position: relative;
        padding-top: var(--space-md);
        margin-top: var(--space-lg);
    }

    /* 图片在描述文字下方 */
    .about-stats-layout__right {
        width: 100%;
        order: 2;
    }

    .about-stats-layout__right img {
        width: 100%;
        height: auto;
    }

    /* 第一行：2个数据 */
    .about-stats-new__row--top {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0;
        border-bottom: 1px solid black;
    }

    /* 第二行：3个数据 */
    .about-stats-new__row--bottom {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 0;
    }

    .about-stats-new__item {
        flex: none !important;
        padding: var(--space-md) var(--space-2xs);
        justify-content: center !important;
        text-align: center;
        flex-direction: column;
        align-items: center;
        gap: 4px;
    }

    /* 第一行右边框 - 第一个item右边框 */
    .about-stats-new__row--top .about-stats-new__item:first-child {
        border-right: 1.5px solid black;
    }

    /* 第二行右边框 - 第1和第2个item右边框 */
    .about-stats-new__row--bottom .about-stats-new__item:nth-child(1) {
        border-right: 1.5px solid black;
    }
    .about-stats-new__row--bottom .about-stats-new__item:nth-child(3) {
        border-right: 1.5px solid black;
    }

    .about-stats-new__number {
        font-size: var(--font-size-3xl);
        font-weight: 900;
        color: var(--color-text);
        line-height: 1;
        font-family: DINCcond-Bold, serif;
    }

    .about-stats-new_down_number {
        font-size: var(--font-size-4xl);
        font-weight: 900;
        color: var(--color-text);
        line-height: 1;
        font-family: DINCcond-Bold, serif;
    }

    .about-stats-new__number sup {
        font-size: var(--font-size-2xl);
        font-weight: 700;
    }

    .about-stats-new__label {
        font-size: var(--font-size-base);
        white-space: normal;
        color: var(--color-text);
        line-height: 1.4;
    }

    .about-stats-new__divider,
    .about-stats-new__divider-h {
        display: none;
    }

    /* About Tech Mobile - 按照设计图：图片在上，文字在下 */
    .about-tech {
        padding: var(--space-lg) 0;
        background-color: var(--color-white);
    }

    .about-tech__showcase {
        display: flex;
        flex-direction: column;
        gap: var(--space-lg);
    }

    .about-tech__images {
        order: 2;
        gap: var(--space-sm);
    }

    .about-tech__img-row--top {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--space-sm);
    }

    .about-tech__img-row--top img {
        aspect-ratio: 1/1;
        width: 100%;
        height: auto;
        object-fit: cover;
    }

    .about-tech__content {
        order: 1;
        padding-top: 0;
    }

    .about-tech__title {
        font-size: 20px;
        font-weight: var(--font-weight-bold);
        margin-bottom: var(--space-md);
        color: var(--color-text);
    }

    .about-tech__list {
        padding-left: 0;
    }

    .about-tech__list li {
        font-size: var(--font-size-base);
        padding-left: var(--space-md);
        line-height: 1.6;
        color: var(--color-text-secondary);
    }

    .about-tech__list li::before {
        content: "";
        position: absolute;
        left: 0;
        top: 8px;
        width: 8px;
        height: 3px;
        background-color: var(--color-text);
        border-radius: 0;
    }

    .about-tech__bottom-images {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: var(--space-sm);
        margin-top: var(--space-md);
        max-width: 100%;
    }
    .about-tech__bottom-image-left {
        width: 80%;
        margin-right: auto;
        align-self: flex-start;
    }
    .about-tech__bottom-image-right {
        width: 60%;
        margin-left: auto;
        align-self: flex-end;
    }

    /* About Certs Mobile - 按照设计图横向滚动 */
    .about-certs-section {
        padding: var(--space-lg) 0;
        background-color: rgb(234, 234, 234);
    }

    .about-section-title {
        font-size: 20px;
        font-weight: var(--font-weight-bold);
        margin-bottom: var(--space-sm);
        color: var(--color-text);
    }

    .about-section-desc {
        font-size: var(--font-size-base);
        margin-bottom: var(--space-lg);
        max-width: 100%;
        line-height: 1.8;
        color: var(--color-text-secondary);
    }

    .about-certs-slider {
        position: relative;
        padding: 0;
    }

    .about-certs-slider__arrow {
        display: none;
    }

    .about-certs-slider__more {
        display: flex;
        justify-content: flex-end;
        padding-top: var(--space-xs);
        padding-right: var(--space-md);
        color: rgb(153, 153, 153);
        font-size: var(--font-size-sm);
    }

    .about-certs-slider__more_map {
        display: flex;
        justify-content: flex-start;
        padding-top: var(--space-xs);
        padding-left: var(--space-md);
        color: rgb(153, 153, 153);
        font-size: var(--font-size-sm);
    }

    .about-certs-slider__track {
        display: flex;
        gap: var(--space-sm);
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        justify-content: flex-start;
        padding-bottom: var(--space-sm);
    }

    .about-certs-slider__track::-webkit-scrollbar {
        display: none;
    }

    .about-certs-slider__item {
        flex: 0 0 120px;
        width: 120px;
        scroll-snap-align: start;
        background-color: var(--color-white);
    }

    /* About Service Mobile - 按照设计图地图全宽 */
    .about-service {
        padding: var(--space-lg) 0 var(--space-xl);
        background-color: var(--color-white);
    }

    .about-service__desc {
        font-size: var(--font-size-base);
        margin-bottom: var(--space-lg);
        max-width: 100%;
        line-height: 1.8;
        color: var(--color-text-secondary);
    }

    .about-service__map {
        max-width: 100%;
        margin: 0 calc(-1 * var(--container-padding));
        width: calc(100% + var(--container-padding) * 2);
        overflow: auto;
        -webkit-overflow-scrolling: touch;
        position: relative;
    }

    .about-service__map::-webkit-scrollbar {
        display: none;
    }

    .map-scroll-wrapper {
        position: relative;
        width: 260%;
        height: auto;
    }

    .map-scroll-wrapper > img {
        width: 100%;
        height: auto;
        display: block;
    }

    /* Map Hotspot Mobile Styles */
    .map-scroll-wrapper .map-hotspot {
        position: absolute;
        left: 76%;
        top: 47%;
        transform: translate(-50%, -50%) scale(1.2);
    }

    .map-hotspot {
        z-index: 9;
    }

    .map-hotspot__dot {
        width: 6px;
        height: 6px;
        z-index: 10;
    }

    .map-hotspot:hover .map-hotspot__dot,
    .map-hotspot--active .map-hotspot__dot {
        width: 8px;
        height: 8px;
        z-index: 10;
    }

    /* Blue marker mobile style - always hidden */
    .map-hotspot--blue .map-hotspot__dot,
    .map-hotspot--blue:hover .map-hotspot__dot,
    .map-hotspot--blue.map-hotspot--active .map-hotspot__dot {
        background-color: transparent;
        width: 24px;
        height: 24px;
        box-shadow: none;
        z-index: 10;
    }

    /* Mobile: tooltip appears below hotspot to avoid cutoff */
    .map-tooltip {
        min-width: 140px;
        max-width: 200px;
        padding: var(--space-xs) var(--space-sm);
        bottom: auto;
        top: 100%;
        transform: translateX(-50%) translateY(8px);
        z-index: 11;
    }

    .map-tooltip__title {
        font-size: 13px;
    }

    .map-tooltip__address {
        font-size: 12px;
    }

    .map-tooltip::after {
        top: auto;
        bottom: 100%;
        border-top-color: transparent;
        border-bottom-color: var(--color-white);
        z-index: 11;
    }

    .map-hotspot:hover .map-tooltip,
    .map-hotspot--active .map-tooltip {
        transform: translateX(-50%) translateY(12px);
        z-index: 11;
    }

    .auto-scroll-container {
        height: auto;
        overflow-y: visible;
        scroll-snap-type: none;
    }

    .auto-scroll-container .auto-scroll-slide {
        height: auto;
        min-height: auto;
        scroll-snap-align: none;
        overflow: visible;
        display: block;
    }

    .auto-scroll-container .auto-scroll-slide > .container {
        height: auto;
        max-height: none;
        overflow: visible;
    }

    /* 恢复原有padding */
    .auto-scroll-slide.about-intro,
    .auto-scroll-slide.about-stats-section,
    .auto-scroll-slide.about-tech,
    .auto-scroll-slide.about-certs-section,
    .auto-scroll-slide.about-service {
        padding: var(--space-lg) 0;
    }

    .auto-scroll-slide.about-intro {
        padding-bottom: 0;
    }
}