/* ============================================
   响应式样式
   策略：保持PC布局结构不变，缩小尺寸适配
   ============================================ */

/* ===== 平板竖屏 / 小桌面 (768px ~ 1024px) ===== */
@media (max-width: 1024px) {
    .header {
        padding: 0 12px;
    }

    .shortcut {
        gap: 20px;
    }

    .shortcut .sItem a {
        font-size: 15px;
    }

    .header .shortcut .logoBtn {
        padding: 8px 16px;
    }

    .header .shortcut .logoBtn a {
        font-size: 13px;
    }

    .logo .l-img {
        width: 130px;
        height: 48px;
    }

    /* Banner - 保持PC定位比例 */


    /* .bannerImg {
        height: 520px;
    } */


    /* 板块间距缩小 */
    .introduceOne {
        padding: 100px 20px 60px;
    }

    .introduceBox .bigTit {
        font-size: 32px;
        margin-bottom: 20px;
    }

    .introduceBox .littleTit {
        font-size: 16px;
        width: 560px;
    }

    .functionList {
        margin: 36px 0 28px;
        gap: 10px;
    }

    .functionItem {
        width: 160px;
        height: 48px;
        font-size: 15px;
    }

    .functionInfoImg {
        width: 420px;
    }

    .functionInfo .functionInfoTit {
        font-size: 24px;
    }

    .functionInfo .functionInfoTit .tip {
        font-size: 20px;
    }

    .functionTipTit {
        font-size: 15px;
    }

    .functionInfoItem {
        font-size: 16px;
        margin-top: 22px;
    }

    .functionInfoBtn {
        width: 120px;
        height: 42px;
        line-height: 42px;
        font-size: 14px;
        margin-top: 36px;
    }

    .introduceTwo {
        padding: 8px 20px 80px;
    }

    .showUseItem {
        width: 220px;
        height: 220px;
    }

    .showUseVideo {
        width: 520px;
        height: 400px;
    }

    .introduceThree {
        padding: 80px 0;
    }

    .introduceFour {
        padding: 80px 0;
    }

    .introduceFour .bigTit {
        font-size: 32px;
    }

    .carousel-track .slide {
        width: 500px;
        height: 250px;
        margin-right: 50px;
    }

    .caseBlock {
        width: 100%;
        max-width: 960px;
    }

    .caseDetailBox {
        width: 700px;
    }

    .footerList {
        padding: 40px 20px;
    }

    .footerItem {
        margin-right: 24px;
    }

    .footerItem li {
        font-size: 14px;
    }
}

/* ===== 手机横屏 / 小平板 (576px ~ 767px) ===== */
@media (max-width: 767px) {
    /* 头部：显示汉堡按钮 */
    .shortcut {
        display: none !important;
    }

    .mobile-menu-btn {
        display: flex !important;
    }

    .header {
        padding: 8px 12px;
        background-color: #fff;
    }

    .headerBlock {
        background-color: #fff;
    }

    .logo .l-img {
        width: 110px;
        height: 40px;
    }

    .logo {
        padding: 6px 0;
    }

    /* Banner - 保持PC定位，用百分比 */
    .banner {
        margin-top: 56px;
    }

    /* .bannerImg {
        height: 400px;
    } */


    /* 通用 */
    .introduceOne {
        padding: 60px 16px 40px;
    }

    .introduceBox .bigTit {
        font-size: 26px;
        margin-bottom: 14px;
    }

    .introduceBox .littleTit {
        font-size: 14px;
        width: 90%;
        line-height: 1.6;
    }

    .functionList {
        margin: 24px 0 18px;
        gap: 8px;
    }

    .functionItem {
        width: 130px;
        height: 42px;
        font-size: 13px;
    }

    .functionIconBox {
        width: 22px;
        height: 22px;
    }

    .functionIcon {
        width: 22px;
        height: 22px;
    }

    .functionInfoImg {
        width: 280px;
    }

    .functionInfo .functionInfoTit {
        font-size: 20px;
    }

    .functionInfo .functionInfoTit .tip {
        font-size: 16px;
    }

    .functionTipTit {
        font-size: 13px;
        padding: 10px 0 18px;
    }

    .functionInfoItem {
        font-size: 13px;
        margin-top: 14px;
    }

    .functionInfoItemImg {
        width: 18px;
        height: 18px;
    }

    .functionInfoBtn {
        width: 100px;
        height: 36px;
        line-height: 36px;
        font-size: 13px;
        margin-top: 24px;
    }

    /* 功能强大 */
    .introduceTwo {
        padding: 20px 16px 50px;
    }

    .showUseItem {
        width: 170px;
        height: 170px;
        border-radius: 12px;
    }

    .showUseTit {
        font-size: 14px;
    }

    .showUseTip {
        font-size: 10px;
        line-height: 17px;
    }

    .showUseVideo {
        width: 340px;
        height: 360px;
    }

    /* 案例 - 保持按钮显示 */
    .introduceThree {
        padding: 50px 0;
    }

    .caseBlock {
        width: 90%;
        max-width: 100%;
    }

    .casePrebtn,
    .caseNextBtn {
        width: 30px;
        height: 30px;
    }

    .caseDetailBox {
        width: 100%;
        height: 240px;
        margin: 0 12px;
    }

    .caseMoreBtn {
        width: 120px;
        height: 36px;
    }

    /* 解决方案 */
    .introduceFour {
        padding: 50px 0;
    }

    .introduceFour .bigTit {
        font-size: 24px;
        margin-bottom: 24px;
    }

    .solutionTitList {
        width: 90%;
        gap: 4px 12px;
    }

    .solutionTit {
        padding: 12px 4px;
        font-size: 14px;
    }

    .carousel-track .slide {
        width: 300px;
        height: 150px;
        margin-right: 30px;
    }

    /* 底部 - 保持横向排列 */
    .footerList {
        padding: 30px 16px;
    }

    .footerItem {
        margin-right: 16px;
    }

    .footerItem .tipTit {
        margin-bottom: 18px;
        font-size: 16px;
    }

    .footerItem li {
        font-size: 13px;
        margin-bottom: 14px;
    }

    .footerItemTip {
        font-size: 14px;
    }

    .ercodeImg {
        width: 90px;
        height: 90px;
    }

    .ercodeItem {
        font-size: 12px;
        margin-right: 20px;
    }

    .contactItem {
        width: 220px;
        margin-bottom: 24px;
    }

    .contactItem .contactImg {
        width: 32px;
        height: 32px;
    }

    .contactItem .contactInfo {
        font-size: 13px;
    }

    .contactItem .contactInfo .contactTit {
        font-size: 15px;
        margin-bottom: 6px;
    }

    .copyRight {
        font-size: 12px;
        padding: 14px 0;
    }
}

/* ===== 手机竖屏 (< 576px) ===== */
@media (max-width: 480px) {
    .logo .l-img {
        width: 90px;
        height: 33px;
    }

    .banner {
        margin-top: 50px;
    }

    /* .bannerImg {
        height: 300px;
    } */


    .introduceBox .bigTit {
        font-size: 22px;
    }

    .introduceBox .littleTit {
        font-size: 13px;
    }

    .functionItem {
        width: 110px;
        height: 38px;
        font-size: 12px;
    }

    .functionIconBox {
        width: 18px;
        height: 18px;
        margin-right: 4px;
    }

    .functionIcon {
        width: 18px;
        height: 18px;
    }

    .functionInfoImg {
        width: 200px;
    }

    .functionInfo .functionInfoTit {
        font-size: 17px;
    }

    .functionInfo .functionInfoTit .tip {
        font-size: 14px;
    }

    .functionTipTit {
        font-size: 12px;
    }

    .functionInfoItem {
        font-size: 12px;
        margin-top: 10px;
    }

    .functionInfoItemImg {
        width: 16px;
        height: 16px;
    }

    .functionInfoBtn {
        width: 90px;
        height: 32px;
        line-height: 32px;
        font-size: 12px;
        margin-top: 18px;
    }

    .showUseItem {
        width: 140px;
        height: 140px;
        border-radius: 10px;
    }

    .showUseTit {
        font-size: 13px;
    }

    .showUseTip {
        font-size: 9px;
        line-height: 15px;
    }

    .showUseVideo {
        width: 260px;
        height: 280px;
    }

    .caseBlock {
        width: 95%;
    }

    .casePrebtn,
    .caseNextBtn {
        width: 24px;
        height: 24px;
    }

    .caseDetailBox {
        height: 180px;
        margin: 0 8px;
    }

    .introduceFour .bigTit {
        font-size: 20px;
    }

    .solutionTitList {
        font-size: 12px;
        gap: 2px 8px;
    }

    .solutionTit {
        padding: 10px 2px;
        font-size: 12px;
    }

    .carousel-track .slide {
        width: 220px;
        height: 110px;
        margin-right: 20px;
    }

    .footerItem {
        margin-right: 10px;
    }

    .footerItem .tipTit {
        font-size: 14px;
        margin-bottom: 12px;
    }

    .footerItem li {
        font-size: 11px;
        margin-bottom: 10px;
    }

    .ercodeImg {
        width: 70px;
        height: 70px;
    }

    .contactItem {
        width: 180px;
        margin-bottom: 16px;
    }

    .contactItem .contactImg {
        width: 26px;
        height: 26px;
    }

    .contactItem .contactInfo {
        font-size: 11px;
    }

    .contactItem .contactInfo .contactTit {
        font-size: 13px;
    }

    .mobile-menu {
        width: 240px;
    }
}