/* 隐藏桌面端头部 */
.mobile-header {
    display: none;
}

@media screen and (max-width: 768px) {
    html, body {
        overflow-x: hidden;
        width: 100%;
    }
    /* 调整通用的上下间距 */
    .pt10{padding-top: 5px;}
    .pt20{padding-top: 10px;}
    .pt30{padding-top: 15px;}
    .pt40{padding-top: 20px;}
    .pt50{padding-top: 25px;}
    .pt60{padding-top: 30px;}
    .pt70{padding-top: 35px;}
    .pt80{padding-top: 40px;}
    .pt90{padding-top: 45px;}
    .pt100{padding-top: 50px;}

    .pb10{padding-bottom: 5px;}
    .pb20{padding-bottom: 10px;}
    .pb30{padding-bottom: 15px;}
    .pb40{padding-bottom: 20px;}
    .pb50{padding-bottom: 25px;}
    .pb60{padding-bottom: 30px;}
    .pb70{padding-bottom: 35px;}
    .pb80{padding-bottom: 40px;}
    .pb90{padding-bottom: 45px;}
    .pb100{padding-bottom: 50px;}
    .mb30{margin-bottom: 15px;}

    /* 强制隐藏原桌面头部和横幅区域，显示新移动端头部 */
    .nav-wrap, .header-top,.banner-area, .header {
        display: none !important;
    }
    
    .mobile-header {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        background-color: #fff;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        min-height: 50px;
    }

    /* 确保页面内容不被固定头部遮挡 */
    body {
        padding-top: 50px;
    }

    /* 全局容器边距缩减 */
    .container-full {
        padding: 0 15px;
    }
    
    /* ================= 头部交互 ================= */
    .mobile-header-menu {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 50px;
        padding: 0 15px;
    }

    .top-login a,.member-manage,.member-manage a{color: #313131;}
    .mobile-right{display: flex;gap: 15px;}

    .mobile-menu-btn {
        display: block;
        width: 30px;
        height: 30px;
        cursor: pointer;
        position: relative;
        padding: 5px;
        margin-left: auto;
        margin-right: 0;
        z-index: 9999;
    }
    .mobile-menu-btn span {
        display: block;
        position: absolute;
        top: 50%;
        left: 0;
        width: 100%;
        height: 2px;
        margin-top: -1px;
        background-color: #333;
        transition: opacity 0.3s ease;
    }
    .mobile-menu-btn i {
        display: block;
        background-color: #333;
        width: 100%;
        height: 2px;
        position: absolute;
        left: 0;
        transition: top 0.3s ease, transform 0.3s ease;
    }
    .mobile-menu-btn .mbtn-top { top: -8px; }
    .mobile-menu-btn .mbtn-bottom { top: 8px; }

    .mobile-menu-btn.menu-btn-on .mbtn-top {
        top: 0;
        transform: rotate(45deg);
    }
    .mobile-menu-btn.menu-btn-on .mbtn-bottom {
        top: 0;
        transform: rotate(-45deg);
    }
    .mobile-menu-btn.menu-btn-on span {
        background-color: #f8f8f8;
    }

    .menu-m {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background-color: #fff;
        z-index: 999;
        overflow-y: auto;
        transform: translateX(100%);
        transition-duration: 400ms;
    }
    .menu-m.menu-top-show { transform: translateX(0); }
    .menu-m .close_ico { display: none; }

    .mobile-nav-menu { padding-top: 50px; }
    .mobile-nav-menu ul { list-style: none; padding: 0; margin: 0; }
    .mobile-nav-menu li { border-bottom: 1px solid #e0e0e0; }
    .mobile-nav-menu li a {
        display: block;
        padding: 12px 20px;
        font-size: 16px;
        line-height: 20px;
        color: #333;
        position: relative;
    }
    .menu-sw-btn i,.menu-smin-btn i {
        font-style: normal;
        position: absolute;
        right: 20px;
        top: 50%;
        margin-top: -10px;
        width: 20px;
        height: 20px;
        line-height: 20px;
        text-align: center;
        transition: transform 0.3s ease;
        font-size: 28px;
        color: #009b4c;
    }
    .menu-smin-btn i{font-size: 22px;}
    .menu-sw-btn.open i,.menu-smin-btn.open i { transform: rotate(45deg); }

    .menu-son {
        display: none;
        background-color: #f9f9f9;
        padding: 0;
    }
    .menu-son li { border-bottom: none; }
    .menu-son li a {
        padding: 10px 15px 10px 30px;
        font-size: 14px;
        color: #666;
    }
    .menu-son li a.menu-on,.mobile-nav-menu li a.menu-on{background: #313131;color: #fff;}
    .menu-sw-btn.menu-on i,.menu-smin-btn.menu-on i{color: #fff;}
    .submenu-son { background-color: #f1f7f7; display: none; }

    /* 移动端搜索框 */
    .mobile-search { position: relative; margin: 2rem 20px; }
    .mobile-search-input {
        width: 100%;
        background: none;
        border: 1px solid #ddd;
        padding: 0 50px 0 15px;
        height: 45px;
        line-height: 45px;
        border-radius: 5px;
        outline: none;
        font-size: 14px;
        color: #333;
    }
    .mobile-search-btn {
        position: absolute;
        top: 0;
        right: 0;
        width: 45px;
        height: 45px;
        background: none;
        cursor: pointer;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: center;
        border: none;
    }
    .mobile-search-btn img{ width: 22px; }

    /* 分页器压缩 */
    .page-list { margin: 30px auto; }
    .page-list li { margin: 2px; }
    .page-list li a, .page-list li span {
        padding: 0 10px;
        font-size: 1.2rem;
        width: auto;
        height: 30px;
        line-height: 28px;
    }
    .page-list li span.pageinfo { display: block; margin-top: 10px; }


    /* ================= 首页 (Index) ================= */
    .concept-header .vertical-line{display: none;}
    .banner {height: 60vh; }
    .slide-content { bottom: 40px; padding: 0 15px; }
    .slide-content .container { max-width: 100%; }
    .slide-content h1 { font-size: 2.8rem; margin-bottom: 10px; }
    .slide-content p { font-size: 1.3rem; }

    .standard-intro { padding: 60px 0; }
    .standard-intro .main-title { font-size: 2.2rem; line-height: 1.4; }
    .standard-intro .title-line { margin: 30px auto 0; }

    .feature-text { bottom: 20px; left: 20px; }
    .feature-text h3 { font-size: 2.2rem; }
    .feature-text p { font-size: 1.2rem; }

    /* 手机端产品列表一般采用 2 列，空间太小则采用 1 列 */
    .product-grid { padding-bottom: 60px; }
    .grid-row { grid-template-columns: repeat(2, 1fr); gap: 20px 10px; }
    /*.index-product .grid-row .product-item:nth-child(3){display: none;}*/
    .info-left h4 { font-size: 1.5rem; }
    .info-left p { font-size: 1.1rem; }

    .industrial-standard { padding: 60px 0 0; }
    .industrial-standard .section-header { margin-bottom: 40px; padding: 0; text-align: center; }
    .industrial-standard .title { font-size: 2.5rem; letter-spacing: 2px; }
    .industrial-standard .subtitle { font-size: 1.3rem; }
    .industrial-standard .header-line { margin: 0 auto; }
    .standard-grid { flex-direction: column; }
    .standard-item { width: 100%; }
    .standard-item .item-overlay { bottom: 20px; left: 20px; right: 20px; }
    .standard-item h3 { font-size: 2.2rem; }

    .concept-innovation { padding: 60px 0; }
    .concept-header { margin-bottom: 50px; }
    .concept-header .title { font-size: 2.5rem; letter-spacing: 2px; }
    .concept-content { flex-direction: column; gap: 20px; }
    .concept-info-box { padding: 30px 20px; }
    .concept-info-box h3 { font-size: 2rem; }

    .essential-accessories { padding: 60px 0; }
    .essential-accessories .section-header { margin-bottom: 40px; text-align: center; }
    .essential-accessories .title { font-size: 2.5rem; }
    .essential-accessories .subtitle { font-size: 1.3rem; }
    .accessory-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .accessory-info { padding: 15px; }
    .accessory-info h4 { font-size: 1.5rem; }
    .accessory-info p { font-size: 1.1rem; margin-bottom: 10px; }

    .production-flows { padding: 60px 0; }
    .flow-content { flex-direction: column; }
    .flow-right { padding-left: 0; padding-top: 40px; }
    .flow-text-wrap .badge { font-size: 1.1rem; margin-bottom: 20px; }
    .flow-text-wrap .title { font-size: 3rem; margin-bottom: 30px; }
    .flow-item { _flex-direction: column; align-items: flex-start; margin-bottom: 25px; }
    .flow-icon { margin-right: 1rem; margin-bottom: 15px; width: 60px; height: 60px; }
    .flow-info h3 { font-size: 1.8rem; }
    .flow-info p { font-size: 1.3rem; }

    .engineering-excellence { padding: 60px 0; background: none; }
    .eng-content { flex-direction: column; gap: 40px; }
    .eng-title { font-size: 2.8rem; margin-bottom: 20px; }
    .eng-text p { font-size: 1.4rem; }
    .eng-logos { padding-top: 20px; gap: 30px; width: 100%;flex-direction: unset;display: flex; }
    .logo-row { justify-content: space-around; gap: 15px; }
    .logo-row img { max-width: 45%; }

    .inspiration-gallery { padding: 60px 0 0; }
    .inspiration-gallery .section-header { margin-bottom: 40px; }
    .inspiration-gallery .index-title { font-size: 2.5rem; letter-spacing: 2px; }
    .inspiration-gallery .index-subtitle { font-size: 1.4rem; }
    .gallery-grid { grid-template-columns: 1fr; }
    .gallery-left img { min-height: 250px; }
    .gallery-right img { min-height: 200px; }

    .cta-section { padding: 60px 0; }
    .cta-section .index-title { font-size: 2.8rem; }
    .cta-section .index-subtitle { font-size: 1.4rem; margin-bottom: 30px; }
    .cta-btns { flex-direction: column; gap: 15px; }
    .cta-btns a { width: 100%; padding: 0; text-align: center;line-height: 4.5rem;}


    /* ================= 关于我们 & 制造 (About & Manufacturing) ================= */
    .section-global-mfg { padding-top: 60px; }
    .mfg-text-wrap { padding: 0 15px; margin-bottom: 30px; }
    .mfg-title { font-size: 3rem; }
    .mfg-desc { padding: 0; font-size: 1.3rem; }

    .section-about-gradient { padding: 60px 0; }
    .about-grad-wrap { flex-direction: column; gap: 40px; }
    .grad-text-col, .grad-img-col { width: 100%; max-width: 100%; }
    .grad-title { font-size: 2.8rem; margin-bottom: 25px; }
    .about-swiper { min-height: 250px; }

    .section-milestone { padding: 60px 0; }
    .ms-title { font-size: 2.8rem; }
    .ms-subtitle { font-size: 1.3rem; }
    .milestone-content { padding: 0; } 
    .ms-btn-prev, .ms-btn-next { display: none; }
    .ms-card { padding: 30px 15px; min-height: 220px; height: auto; }

    .section-numbers { padding: 60px 0; }
    .numbers-wrapper { flex-direction: column; gap: 40px; }
    .num-text-col { text-align: center; }
    .num-title { font-size: 2.8rem; margin-bottom: 20px; }
    .num-grid-col { grid-template-columns: repeat(2, 1fr); gap: 30px 15px; }
    .stat-item { margin: 0 !important; }
    .stat-value { font-size: 2.8rem; }
    .stat-label { font-size: 1.2rem; }

    .section-cert { padding: 60px 0; }
    .cert-title { font-size: 2.5rem; }
    .cert-desc { font-size: 1.3rem; margin-bottom: 40px; }
    .cert-grid { gap: 20px; }
    .cert-item { flex: 0 0 45%; margin-bottom: 15px; min-width: unset; }
    .cert-item img { max-height: 60px; }


    /* ================= 可持续发展 & 零碳 (Sustainability) ================= */
    .factory-banner .banner-text h1 { font-size: 2.5rem; }
    
    .sus-roadmap-section { padding: 60px 0; }
    .sus-header { margin-bottom: 40px; }
    .sus-title { font-size: 2.8rem; }
    .sus-desc { font-size: 1.3rem; }
    .sus-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .sus-card { padding: 30px 10px; }
    .card-icon-circle { width: 50px; height: 50px; margin-bottom: 20px; }
    .card-icon-circle svg { width: 24px; height: 24px; }
    .card-label { font-size: 10px; }
    .card-value { font-size: 2.2rem; margin-bottom: 10px; }

    .zero-carbon-section { padding: 60px 0; }
    .zc-header { flex-direction: column; align-items: flex-start; gap: 15px; margin-bottom: 30px; }
    .zc-title { font-size: 2.8rem; }
    .zc-right p { font-size: 1.3rem; }
    .zc-content-grid { flex-direction: column; gap: 30px; }
    .zc-green-card { padding: 30px 20px; flex: auto; }
    .zc-value { font-size: 4rem; }
    .zc-sub { font-size: 1.6rem; margin-bottom: 20px; }
    .zc-chart-wrap { padding: 25px 15px; }
    .js-bar-chart { height: 220px; padding-left: 30px; }

    .material-circular-section { padding: 60px 0; }
    .mc-wrapper { flex-direction: column; gap: 40px; }
    .mc-content { padding-right: 0; }
    .mc-title { font-size: 2.8rem; }
    .mc-desc { font-size: 1.3rem; margin-bottom: 30px; max-width: 100%; }
    .mc-image-col { min-height: 250px; }
    .img-overlay { padding: 30px 20px; }
    .overlay-year { font-size: 3.5rem; left: 15px; }


    /* ================= 车间与工厂 (Workshop Tour) ================= */
    .workshop-section { padding: 60px 0; }
    .ws-box { flex-direction: column; gap: 30px; }
    .ws-title { font-size: 2.5rem; margin-bottom: 20px; }
    .ws-list li { font-size: 1.3rem; }
    .ws-list.two-col { grid-template-columns: 1fr; gap: 10px; }


    /* ================= 联系我们 (Contact Us) ================= */
    .contact-section { padding: 60px 0; }
    .contact-layout { flex-direction: column; gap: 30px; }
    .contact-info-col, .contact-form-col { flex: auto; width: 100%; }
    .contact-card { padding: 30px 20px; }
    .icon-box-square { width: 45px; height: 45px; margin-bottom: 20px; }
    .info-text-lg { font-size: 1.6rem; }
    .info-email { font-size: 1.6rem; }
    
    .form-wrapper { padding: 30px 20px; }
    .form-title { font-size: 2.2rem; }
    .form-subtitle { font-size: 1.3rem; margin-bottom: 30px; }
    .form-row-2 { grid-template-columns: 1fr; gap: 0; }
    .custom-form input, .custom-form textarea { padding: 12px 15px; margin-bottom: 20px; }
    .btn-submit { width: 100%; justify-content: center; }


    /* ================= 列表页 & 详情页 ================= */
    .product-layout { flex-direction: column; gap: 30px; }
    .product-sidebar { width: 100%; }
    .list-header h2 { font-size: 2.5rem; margin-bottom: 20px; }
    .product-content .grid-row { grid-template-columns: repeat(2, 1fr); }

    .product-view { flex-direction: column; gap: 30px; }
    .gallery-section { width: 100%; height: auto; flex-direction: column-reverse; gap: 10px; }
    .gallery-thumbs { width: 100%; height: 60px; }
    .gallery-thumbs .swiper-wrapper { flex-direction: row; }
    .gallery-top { height: auto; aspect-ratio: 1/1; }
    
    .info-section { width: 100%; padding: 0; }
    .title-share-wrapper { flex-direction: column; align-items: flex-start; gap: 15px; margin-bottom: 15px; }
    .product-title { font-size: 2.2rem; }
    .spec-header { font-size: 1.8rem; }
    .spec-row { flex-direction: column; align-items: flex-start; gap: 5px; padding: 10px 0; }
    .spec-label { width: 100%; font-size: 1.2rem; }
    .spec-value { width: 100%; font-size: 1.2rem; }
    .btn-black { width: 100%; text-align: center; }

    .related-section { margin-top: 60px; padding-top: 40px; }
    .related-title { font-size: 2.2rem; margin-bottom: 20px; }
    .related-grid-swiper { flex-direction: row; }
    .related-prev, .related-next { display: none; } /* 移动端靠滑动 */

    /* News */
    .news-module { padding: 60px 0; }
    .news-menu { padding-bottom: 30px; }
    .news-menu li { margin: 0 10px; margin-bottom: 15px; }
    .news-menu li a { font-size: 1.6rem; padding: 5px 10px; }
    .news-grid { grid-template-columns: 1fr; gap: 25px; }
    .article-page { padding: 40px 0 60px; }
    .article-crumb { margin-bottom: 25px; }
    .article-header { margin-bottom: 35px; }
    .article-title { font-size: 2.2rem; }
    .article-date { font-size: 1.2rem; }
    .article-content { font-size: 1.4rem; line-height: 1.9; }
    .article-content h2 { font-size: 2rem; margin: 30px 0 15px; }
    .article-content h3 { font-size: 1.8rem; margin: 25px 0 12px; }
    .article-content img { max-width: 100% !important; height: auto !important; margin: 20px auto; }
    .article-pagelist { margin-top: 40px; gap: 15px; }
    .article-pagelist a { max-width: 100%; width: 100%; font-size: 1.3rem; }
    .article-back { margin-top: 40px; }
    .article-back a { width: 100%; text-align: center; padding: 13px 20px; }

    /* ================= 底部 (Footer) ================= */
    .footer { padding: 50px 0 20px; }
    .footer-top { flex-direction: column; margin-bottom: 30px; text-align: center; }
    .footer-bottom{padding-top: 0;}
    .footer-brand { padding-right: 0; margin-bottom: 40px; }
    .footer-logo { margin: 0 auto 20px; }
    .social-links { justify-content: center; }
    .footer-links { flex-direction: column; gap: 30px; }
    .footer-links .link-col:nth-child(1),.footer-links .link-col:nth-child(2){display: none;}
    .link-col h4 { font-size: 1.8rem; margin-bottom: 15px; }
    .contact-info p { font-size: 1.2rem; }
    .footer-bottom p { font-size: 1rem; line-height: 1.5; padding: 0 10px; }
}
/* ===== 手机端 lang-btn / 分享 ===== */
.lang-btn { font-size: 1.3rem; }
.social-links a { width: 36px; height: 36px; }
.social-links img { width: 22px; }