@media (max-width: 991px) {
    .page-banner { padding: 50px 0 45px; }
    .page-banner h1 { font-size: 26px; }
    .navbar-brand { font-size: 15px; max-width: 280px; }
    .navbar-nav .nav-link { padding: 12px 16px !important; }
}

@media (max-width: 767px) {
    .contact-bar .text-right { text-align: left; margin-top: 2px; }
    .contact-bar { padding: 8px 0; font-size: 12px; }
    .navbar-brand { font-size: 14px; padding: 14px 0; max-width: 240px; }
    .navbar-toggler { border: none; }
    .navbar-toggler-icon { 
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='%231e3a5f' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    #navbarSupportedContent {
        background: #fff;
        border-radius: 8px;
        box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        padding: 10px 0;
    }
    #navbarSupportedContent .nav-link {
        padding: 10px 20px !important;
        border-bottom: 1px solid #f0f0f0;
    }
    #navbarSupportedContent .nav-link:after { display: none; }
    .page-banner { padding: 40px 0 35px; }
    .page-banner h1 { font-size: 22px; }
    .page-banner p { font-size: 15px; }
    .section-title h2 { font-size: 24px; }
    .section-title { margin-bottom: 30px; }
    .about { padding: 45px 0; }
    .about h2 { font-size: 20px; }
    .features { padding: 45px 0; }
    .feature-card { margin-bottom: 18px; padding: 28px 20px; }
    .services { padding: 45px 0; }
    .service-card { margin-bottom: 18px; padding: 24px 20px; }
    .tab-container { padding: 40px 0; }
    .tab-nav { gap: 4px; overflow-x: auto; flex-wrap: nowrap; }
    .tab-nav .tab-btn { padding: 10px 16px; font-size: 13px; white-space: nowrap; }
    .alternate-section { padding: 45px 0; }
    .alternate-section .alt-img { margin-bottom: 15px; }
    .alternate-section .alt-img i { font-size: 48px; width: 80px; height: 80px; line-height: 80px; }
    .accordion-section { padding: 40px 0; }
    .accordion-header { font-size: 14px; padding: 14px 18px; }
    .faq-section { padding: 45px 0; }
    .faq-item { padding: 16px 18px; }
    .guarantee { padding: 45px 0; }
    .news-section { padding: 45px 0; }
    footer { padding: 40px 0 0; }
    footer .col-md-4 { margin-bottom: 25px; }
    .tab-card { padding: 18px; }
}

@media (max-width: 575px) {
    .navbar-brand { max-width: 200px; font-size: 13px; padding: 12px 0; }
    .page-banner h1 { font-size: 19px; }
    .page-banner p { font-size: 14px; }
    .feature-card { padding: 22px 16px; }
    .feature-card i { width: 60px; height: 60px; line-height: 60px; font-size: 32px; }
    .service-card { padding: 20px 16px; }
}