/* Extra small devices (md, <576px) */
/* 小屏手机（竖屏） */
@media (max-width: 575.98px) {
    .section-title {
        font-size: 22px;
        text-align: center;
    }

    .header-logo img {
        width: 28px;
        height: 28px;
    }

    .navbar {
        height: 60px;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 9999;
        background-color: #F9F9F9;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease-in-out;
    }

    .navbar-nav {
        gap: 0;
        margin-left: 12px;
    }

    .navbar-nav .nav-item {
        padding: 12px;
        border-bottom: 1px solid #F2F3F4;
        color: #222222 !important;
    }

    .navbar-toggler {
        border: none;
    }

    .nav-link::after {
        background-color: unset !important;
    }

    .navbar-toggler:focus {
        text-decoration: none;
        outline: 0;
        box-shadow: none;
        border: none;
    }

    .navbar-toggler .toggle-close-icon {
        display: none;
    }

    .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
        display: none;
    }

    .navbar-collapse .language {
        display: none !important;
    }

    .navbar-toggler[aria-expanded="true"] .toggle-close-icon {
        display: inline-block;
    }

    .custom-navbar {
        background-color: #FFFFFF;
        width: 100%;
        position: absolute;
        top: 60px;
        left: -2px;
        border-bottom-left-radius: 16px;
        border-bottom-right-radius: 16px;
        z-index: 9999;
    }

    .banner-area {
        position: relative;
        top: 60px;
    }

    .carousel-item {
        height: 250px;
    }

    .carousel-indicators {
        bottom: -36px;
    }

    .carousel-indicators [data-bs-target] {
        width: 35px;
        height: 3px;
        border-radius: 3px;
    }

    .carousel-item.banner-slide-1 .banner-description h1 {
        margin-top: 0;
        font-size: 16px;
        padding: 6px 0 6px 0;
    }

    .carousel-item.banner-slide-1 .banner-description h5 {
        font-size: 14px;
        width: 55%;
        margin-top: 0;
        line-height: 1.5;
    }

    .carousel-item.banner-slide-1 .banner-description p {
        margin-top: 12px;
        font-weight: 500;
        font-size: 14px;
        line-height: normal;
        letter-spacing: 0;
        color: #107FC8;

    }

    .carousel-item.banner-slide-2 .banner-description h1 {
        margin-top: 0;
        font-size: 16px;
        padding: 6px 0 6px 0;
    }

    .carousel-item.banner-slide-2 .banner-description h5 {
        font-weight: 400;
        width: 50%;
        margin-top: 0;
        font-size: 14px;
    }

    .carousel-item.banner-slide-3 .banner-description h1 {
        margin-top: 0;
        font-size: 16px;
        padding: 6px 0 6px 0;
    }

    .carousel-item.banner-slide-3 .banner-description h5 {
        font-weight: 400;
        width: 50%;
        margin-top: 0;
        font-size: 14px;
    }

    .carousel-item.banner-slide-4 {
        background-position: center center;
    }
    .carousel-item.banner-slide-2 {
        background-position: center center;
    }

    .carousel-item.banner-slide-4 .banner-description h1 {
        margin-top: 0;
        font-size: 16px;
        padding: 6px 0 6px 0;
    }

    .carousel-item.banner-slide-4 .banner-description h5 {
        font-weight: 400;
        width: 55%;
        margin-top: 0;
        font-size: 14px;
    }

    /*    为什么你需要 plugos*/
    .carousel-item {
        transition: opacity 0s ease-in-out !important;
    }

    .custom-divider {
        display: none;
    }

    .why-need {
        margin-top: 60px;
        padding-top: 48px;
        padding-bottom: 48px;
    }

    .why-you-need h3 {
        font-size: 22px;
        text-align: center;
    }

    .why-you-need p {
        margin-top: 13px;
        font-size: 14px;
        text-align: center;
    }

    .why-need-md-carousel {
        height: 368px;
    }

    .why-need-md-carousel-item {
        border-radius: 16px;
        box-shadow: 0 4px 12px 0 #0000000F;
        height: auto;
        text-align: center;
    }

    .why-need-md-carousel-item img {
        /*width: 100%;*/
        height: 226px;
        object-fit: cover; /* 等价于 background-size: cover */
        object-position: center center;
        border-radius: 16px;
    }

    .why-need-md-carousel-item p {
        font-family: PingFang SC;
        font-weight: 400;
        font-size: 14px;
        line-height: 24px;
        letter-spacing: 0;
        padding: 16px;

    }

    /*为什么选择我们*/
    .why-choose-us {
        padding-top: 48px;
        padding-bottom: 48px;
    }

    .section-tile-blue {
        font-size: 18px;
    }

    .section-description {
        width: 100%;
        font-size: 14px;
        line-height: 20px;
        padding: 0 20px 0 20px;
    }

    .section-description p {
        width: 100%;
        font-size: 1.25rem;
        line-height: 1.5;
    }

    .why-choose-us-card {
        height: auto;
    }

    .card-title {
        font-size: 14px;
        color: #222222;
        margin-top: 14px;
        padding: 0 10px 0 10px;
    }

    .card-description {
        font-size: 14px;
        line-height: 18px;
        color: #666666;
        margin-top: 16px;
        padding: 0 10px 0 10px;
    }

    /*核心特性*/
    .coreCharacteristics {
        padding-top: 48px;
        padding-bottom: 48px;
    }

    .coreCharacteristics-Carousel {
        height: 666px;
    }

    .coreCharacteristics-Carousel-item {
        border-radius: 16px;
        height: 100%
    }

    .coreCharacteristics-Carousel-item img {
        width: 100%;
        height: 320px;
        object-fit: cover; /* 等价于 background-size: cover */
        object-position: center center;
        border-radius: 16px;
    }

    .accordion-header p {
        font-family: PingFang SC;
        font-weight: 500;
        font-size: 16px;
        line-height: 100%;
        letter-spacing: 0;
        margin-top: 16px;
    }

    .accordion-body p {
        font-weight: 400;
        font-size: 14px;
        line-height: 26px;
        margin-bottom: 14px;
    }

    .accordion-body ul {
        font-size: 14px;
        line-height: 24px;
    }

    .feature-description {
        margin-top: 5px;
    }

    /*方案对比*/
    .scheme-area {
        padding-top: 48px;
        padding-bottom: 48px;
    }

    /* 整个滚动条 */
    .compare-section::-webkit-scrollbar {
        height: 3px; /* 水平滚动条设置 height，垂直设置 width */
        background-color: #D8D8D8;
    }

    /* 滚动条滑块 */
    .compare-section::-webkit-scrollbar-thumb {
        background-color: #067AFF;
        border-radius: 4px;
    }

    .compare-card {
        display: grid;
        grid-template-columns: 120px 150px 130px 130px 130px 130px 130px;
    }

    .compare-card-plugos .scheme-feature p {
        font-size: 14px;
        line-height: normal;
    }
    .scheme-feature {
        padding: 0px;
    }
    .scheme-feature p {
        font-size: 14px;
    }

    .scheme-title {
        font-size: 14px;
    }

    /*    硬件规格*/
    .size-area {
        padding-top: 48px;
        padding-bottom: 48px;
    }

    .product-card {
        padding-top: 0;
        margin-top: 10px;
    }

    /* PlugOS 卡片小屏幕响应式样式 */
    .plugos-card {
        flex-direction: column;
        text-align: center;
        padding: 0.75rem;
        margin-bottom: 1rem;
    }

    .card-icon {
        width: 40px;
        height: 40px;
        margin-right: 0;
        margin-bottom: 0.75rem;
        margin-left: auto;
        margin-right: auto;
    }

    .card-title {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }

    .card-text {
        font-size: 0.85rem;
        line-height: 1.4;
    }

    .product-image {
        height: 250px;
        border-radius: 16px 16px 0 0;
    }

    .product-image img {
        max-height: 100px;

    }

    .product-name {
        text-align: center;
        padding: 25px 50px 0;
    }

    .product-specs .title {
        font-size: 14px;
        padding: unset;
    }

    .product-specs .description {
        font-size: 14px;
        padding: unset;
    }

    .product-info {
        padding: 0 20px;
    }

    /*行业应用*/
    .scenario-features-item {
        height: 530px;
    }

    .applications-area{
        padding-top: 48px;
        padding-bottom: 48px;
    }
    .applications-card .card-title {
        font-size: 14px;
    }

    .applications-card .card-description {
        font-size: 14px;
        line-height: 18px;
    }

    .applications-card a {
        font-weight: 400;
        font-size: 14px;
        letter-spacing: 0;
        margin-left: 10px;
        line-height: normal;
        bottom: -60px;

    }

    .applications-card-button {
        margin-bottom: 10px;
    }

    .applications-card img {
        border-top-left-radius: 16px;
        border-top-right-radius: 16px;
    }

}