/* ==========================================================================
   响应式媒体查询样式
   Responsive Media Queries
   ========================================================================== */

/* Large devices (desktops, less than 1200px) */
@media (max-width: 1199.98px) {
  /* Navigation */
  .nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }
  
  /* Search Input */
  .search-input {
    width: 150px;
  }
  
  /* Logo */
  .logo-img {
    height: 55px;
  }
  
  /* Page Banner */
  .page-banner {
    height: 280px;
  }
  
  .page-banner-title {
    font-size: 2.25rem;
  }
  
  /* Product Detail */
  .product-detail-title {
    font-size: 2.25rem;
  }
  
  .product-detail-description {
    font-size: 1rem;
  }
  
  /* Product Tabs */
  .tab-section-title {
    font-size: 1.75rem;
  }
  
  .tab-section-description {
    font-size: 1rem;
  }
  
  /* Banner */
  .banner-title {
    font-size: 3.5rem;
  }
  
  .banner-description {
    font-size: 1.125rem;
  }
  
  .carousel-control-prev {
    left: 1.5rem;
  }
  
  .carousel-control-next {
    right: 1.5rem;
  }
  
  /* Solutions Section */
  .section-title {
    font-size: 2.25rem;
  }
  
  .section-description {
    font-size: 1.0625rem;
  }
  
  /* Why Choose Us */
  .why-banner {
    padding: 2.5rem 2rem;
  }
  
  .banner-title {
    font-size: 1.625rem;
  }
  
  .banner-subtitle {
    font-size: 0.9375rem;
  }
  
  .feature-icon {
    width: 72px;
    height: 72px;
  }
  
  .feature-icon i {
    font-size: 2rem;
  }
  
  /* Products Section */
  .product-info {
    padding: 1.25rem;
  }
  
  .product-name {
    font-size: 1.0625rem;
  }
  
  /* About Section */
  .about-title {
    font-size: 2.5rem;
  }
  
  .about-description {
    font-size: 1.0625rem;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
  
  .stat-card {
    padding: 1.75rem;
  }
  
  /* Cases Section */
  .case-content {
    padding: 1.25rem;
  }
  
  .case-title {
    font-size: 1.0625rem;
  }
  
  /* News Section */
  .news-title {
    font-size: 1.25rem;
  }
  
  .news-content {
    padding: 1.5rem;
  }
  
  .news-item-image-wrapper {
    width: 110px;
    height: 75px;
  }
  
  .news-item-title {
    font-size: 0.9375rem;
  }
  
  /* Exhibition Section */
  .exhibition-card {
    padding: 1.25rem;
  }
  
  .exhibition-logo {
    height: 100px;
  }
  
  .exhibition-title {
    font-size: 1.0625rem;
  }
  
  /* Footer */
  .footer-main {
    padding: 3.5rem 0 2.5rem;
  }
  
  .footer-logo-img {
    height: 44px;
  }
  
  .footer-description {
    font-size: 0.9375rem;
  }
  
  /* News Archive Section */
  .news-archive-section {
    padding: 5rem 0;
  }
  
  .news-archive-title {
    font-size: 1.0625rem;
  }
  
  .news-archive-excerpt {
    font-size: 0.875rem;
  }
  
  /* Customer Feedback Section */
  .customer-feedback-section {
    padding: 6rem 0;
  }
  
  .feedback-main-title {
    font-size: 2.75rem;
  }
  
  .feedback-subtitle {
    font-size: 1.0625rem;
  }
  
  .feedback-card {
    padding: 1.75rem;
  }
  
  .feedback-country-flag {
    width: 44px;
    height: 44px;
  }
  
  .feedback-country-name {
    font-size: 1rem;
  }
  
  /* News Detail Section */
  .news-detail-section {
    padding: 5rem 0;
  }
  
  .news-detail-article {
    padding: 2.5rem;
  }
  
  .news-detail-title {
    font-size: 2.25rem;
  }
  
  .news-detail-content p {
    font-size: 1rem;
  }
  
  .sidebar-item-image {
    width: 70px;
    height: 70px;
  }
  
  /* Company Overview Section */
  .company-overview-section {
    padding: 2rem 0;
  }
  
  .company-overview-title {
    font-size: 2.125rem;
  }
  
  .company-overview-description {
    font-size: 0.9375rem;
  }
  
  .company-stats-grid {
    gap: 0.875rem;
  }
  
  .company-stat-item {
    padding: 0.875rem 0.625rem;
  }
  
  .stat-number {
    font-size: 1.75rem;
  }
  
  .stat-plus,
  .stat-percent {
    font-size: 1rem;
  }
  
  /* Why Choose Us Section */
  .why-choose-main-title {
    font-size: 2.25rem;
  }
  
  .why-choose-subtitle {
    font-size: 1rem;
  }
  
  .core-advantages-grid {
    gap: 1.5rem;
  }
  
  .advantage-card {
    padding: 1.75rem 1.25rem;
  }
  
  .advantage-icon-box {
    width: 70px;
    height: 70px;
    margin-bottom: 1.25rem;
  }
  
  .advantage-icon-box i {
    font-size: 1.75rem;
  }
  
  .performance-metrics-bar {
    padding: 2.25rem 2.5rem;
  }
  
  .metric-value {
    font-size: 2.5rem;
  }
  
  .metric-unit {
    font-size: 1.375rem;
  }
  
  /* Certificates Showcase Section */
  .certificates-section-title {
    font-size: 2.25rem;
  }
  
  .certificates-section-subtitle {
    font-size: 1rem;
  }
  
  .certificates-carousel-container {
    padding: 0 70px;
  }
  
  .certificates-nav-button {
    width: 52px;
    height: 52px;
  }
  
  .certificates-nav-button i {
    font-size: 1.125rem;
  }
  
  .certificates-carousel-track {
    gap: 0.875rem;
    padding: 0 0.875rem 1.75rem;
  }
  
  .certificate-carousel-item {
    flex: 0 0 calc(25% - 0.65625rem);
    min-width: 0;
  }
  
  .certificate-image-container {
    padding-top: 100%;
  }
}

/* Medium devices (tablets, less than 992px) */
@media (max-width: 991.98px) {
  /* Body Padding */
  body {
    padding-top: 70px;
  }
  
  /* Header */
  .site-header .navbar {
    padding: 0.75rem 0;
  }
  
  /* Logo */
  .logo-img {
    height: 50px;
  }
  
  /* Page Banner */
  .page-banner {
    height: 260px;
    margin-top: 0px;
  }
  
  .page-banner-title {
    font-size: 2rem;
  }
  
  .page-banner .breadcrumb {
    font-size: 0.875rem;
  }
  
  /* Product Detail */
  .product-media {
    position: static;
    margin-bottom: 2rem;
  }
  
  .thumbnail-item {
    width: 85px;
    height: 85px;
  }
  
  .product-detail-title {
    font-size: 2rem;
  }
  
  .product-detail-description {
    font-size: 0.9375rem;
  }
  
  .product-actions {
    flex-direction: column;
  }
  
  .product-actions .btn {
    width: 100%;
  }
  
  /* Product Tabs */
  .tabs-nav-wrapper {
    top: 70px;
  }
  
  .tabs-nav {
    gap: 1.25rem;
  }
  
  .tabs-nav .nav-link {
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
  }
  
  .tabs-nav .nav-link i {
    font-size: 1rem;
  }
  
  .tab-section {
    scroll-margin-top: 140px;
  }
  
  .tab-content-inner {
    padding: 2.5rem;
  }
  
  .tab-section-title {
    font-size: 1.625rem;
  }
  
  .tab-section-description {
    font-size: 0.9375rem;
  }
  
  .quote-form-wrapper {
    padding: 1.75rem;
  }
  
  /* Case Detail */
  .case-media {
    margin-bottom: 2rem;
  }
  
  .case-detail-title {
    font-size: 2.25rem;
  }
  
  .case-detail-specs {
    gap: 1.25rem;
    padding: 1.75rem;
  }
  
  .spec-icon {
    width: 44px;
    height: 44px;
    font-size: 1.125rem;
  }
  
  .spec-value {
    font-size: 1rem;
  }
  
  /* Solutions List */
  .solution-tabs {
    gap: 0.75rem;
  }
  
  .solution-tab-btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
  }
  
  .solution-tab-btn i {
    font-size: 1.125rem;
  }
  
  .solution-main {
    padding: 2rem;
  }
  
  .solution-media-toggle {
    gap: 0.625rem;
    margin-bottom: 0.875rem;
  }
  
  .media-toggle-btn {
    padding: 0.5rem 0.875rem;
    font-size: 0.8125rem;
  }
  
  .media-toggle-btn i {
    font-size: 0.9375rem;
  }
  
  .solution-item .solution-title {
    font-size: 1.75rem;
  }
  
  .solution-item .solution-description {
    font-size: 0.9375rem;
  }
  
  .solution-materials {
    padding: 2rem;
  }
  
  .materials-title {
    font-size: 1.125rem;
  }
  
  .material-name {
    font-size: 0.8125rem;
    padding: 0.75rem;
  }
  
  /* Mobile Menu */
  .navbar-collapse {
    margin-top: 1rem;
    padding: 1.5rem;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
  }
  
  /* Navigation Links */
  .navbar-nav {
    gap: 0;
    margin-bottom: 1.5rem;
  }
  
  /* .nav-item {
    border-bottom: 1px solid var(--gray-100);
  }
  
  .nav-item:last-child {
    border-bottom: none;
  } */
  
  .nav-link {
    padding: 0.875rem 0;
    font-size: 1rem;
    border-radius: 0;
  }
  
  .nav-link:hover,
  .nav-link:focus {
    background-color: transparent;
    padding-left: 0.5rem;
  }
  
  /* Hide Mega Menu on Mobile */
  .mega-menu {
    display: none !important;
  }
  
  /* Hide Dropdown Toggle Arrow on Mobile */
  .dropdown-toggle::after {
    display: none;
  }
  
  /* Search & Actions */
  .navbar-actions {
    flex-direction: column;
    gap: 0.75rem !important;
    width: 100%;
    margin-left: 0;
  }
  
  .search-form {
    width: 100%;
  }
  
  .search-input {
    width: 100%;
  }
  
  .input-group {
    width: 100%;
  }
  
  .btn-cta {
    width: 100%;
    padding: 0.75rem 1.5rem;
    justify-content: center;
  }
  
  /* Navbar Toggler */
  .navbar-toggler {
    padding: 0.625rem;
  }
  
  /* Banner */
  .hero-banner {
    margin-top: -32px;
   
  }
  
  .carousel-item {
    /* 使用img标签时，高度由图片自动决定 */
  }
  
  .banner-content {
    padding: 1.5rem 0;
  }
  
  .banner-title {
    font-size: 3rem;
    margin-bottom: 1.25rem;
  }
  
  .banner-description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
  }
  
  .carousel-control-prev,
  .carousel-control-next {
    width: 50px;
    height: 50px;
  }
  
  .carousel-control-prev {
    left: 1rem;
  }
  
  .carousel-control-next {
    right: 1rem;
  }
  
  .carousel-control-icon i {
    font-size: 1.5rem;
  }
  
  .carousel-indicators {
    bottom: 2rem;
  }
  
  /* Solutions Section */
  .section-title {
    font-size: 2rem;
  }
  
  .section-description {
    font-size: 1rem;
  }
  
  .solution-card .solution-content {
    padding: 1.25rem;
  }
  
  .solution-card .solution-title {
    font-size: 1.0625rem;
  }
  
  .waste-icon-item {
    width: calc((100% - 1rem) / 3);
  }
  
  .waste-icon-item img {
    width: 48px;
    height: 48px;
  }
  
  /* Why Choose Us */
  .why-banner {
    padding: 2rem 1.75rem;
  }
  
  .banner-title {
    font-size: 1.5rem;
    margin-bottom: 0.625rem;
  }
  
  .banner-subtitle {
    font-size: 0.9375rem;
  }
  
  .banner-btn {
    width: 100%;
    margin-top: 1.25rem;
  }
  
  .feature-card {
    padding: 2rem 1.5rem;
  }
  
  .feature-icon {
    width: 68px;
    height: 68px;
  }
  
  .feature-icon i {
    font-size: 1.875rem;
  }
  
  .feature-title {
    font-size: 1.125rem;
  }
  
  .feature-description {
    font-size: 0.9375rem;
  }
  
  /* Products Section */
  .product-card:hover {
    transform: scale(1.015);
  }
  
  .product-info {
    padding: 1.125rem;
  }
  
  .product-name {
    font-size: 1rem;
  }
  
  /* About Section */
  .about-section {
    min-height: 500px;
  }
  
  .about-content-wrapper {
    padding: 4rem 0;
  }
  
  .about-text {
    padding-right: 0;
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .about-title {
    font-size: 2.25rem;
  }
  
  .about-description {
    font-size: 1rem;
  }
  
  .about-btn {
    padding: 0.875rem 1.75rem;
  }
  
  .about-stats-grid {
    gap: 1rem;
  }
  
  .stat-card {
    padding: 1.5rem;
  }
  
  .stat-number {
    font-size: 2.25rem;
  }
  
  .stat-label {
    font-size: 0.875rem;
  }
  
  /* Cases Section */
  .case-card:hover {
    transform: scale(1.015);
  }
  
  .case-content {
    padding: 1.125rem;
  }
  
  .case-title {
    font-size: 1rem;
  }
  
  .case-tag {
    padding: 0.4375rem 0.75rem;
    font-size: 0.75rem;
  }
  
  /* News Section */
  .news-featured:hover {
    transform: scale(1.005);
  }
  
  .news-title {
    font-size: 1.125rem;
  }
  
  .news-content {
    padding: 1.25rem;
  }
  
  .news-item {
    padding: 0.875rem;
    gap: 0.875rem;
  }
  
  .news-item-image-wrapper {
    width: 100px;
    height: 68px;
  }
  
  .news-item-title {
    font-size: 0.875rem;
  }
  
  .news-item-date {
    font-size: 0.75rem;
  }
  
  /* Exhibition Section */
  .exhibition-card:hover {
    transform: scale(1.015);
  }
  
  .exhibition-card {
    padding: 1.125rem;
  }
  
  .exhibition-badge {
    padding: 0.3125rem 0.625rem;
    font-size: 0.6875rem;
  }
  
  .exhibition-logo {
    height: 90px;
    margin-top: 1.25rem;
  }
  
  .exhibition-title {
    font-size: 1rem;
  }
  
  .exhibition-info li {
    font-size: 0.8125rem;
  }
  
  /* Footer */
  .footer-main {
    padding: 3rem 0 2rem;
  }
  
  .footer-brand {
    max-width: 100%;
    margin-bottom: 1rem;
  }
  
  .footer-logo-img {
    height: 40px;
  }
  
  .footer-description {
    font-size: 0.875rem;
  }
  
  .footer-title {
    font-size: 0.9375rem;
    margin-bottom: 1rem;
  }
  
  .footer-links li a,
  .footer-contact li {
    font-size: 0.875rem;
  }
  
  /* News Archive Section */
  .news-archive-section {
    padding: 4.5rem 0;
  }
  
  .news-archive-content {
    padding: 1.25rem;
  }
  
  .news-archive-title {
    font-size: 1rem;
  }
  
  .news-archive-excerpt {
    font-size: 0.875rem;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  
  .news-archive-date {
    font-size: 0.8125rem;
  }
  

  
  .news-archive-featured-badge {
    padding: 0.375rem 0.875rem;
    font-size: 0.625rem;
  }
  
  /* Customer Feedback Section */
  .customer-feedback-section {
    padding: 2rem 0;
  }
  
  .feedback-main-title {
    font-size: 2.5rem;
  }
  
  .feedback-subtitle {
    font-size: 1rem;
  }
  
  .feedback-header {
    margin-bottom: 3rem;
  }
  
  .feedback-card {
    padding: 1.5rem;
    gap: 1.25rem;
  }
  
  .feedback-country-flag {
    width: 40px;
    height: 40px;
  }
  
  .feedback-country-name {
    font-size: 0.9375rem;
  }
  
  /* News Detail Section */
  .news-detail-section {
    padding: 4.5rem 0;
  }
  
  .news-detail-article {
    padding: 2rem;
  }
  
  .news-detail-title {
    font-size: 2rem;
  }
  
  .news-detail-content p {
    font-size: 1rem;
  }
  
  .news-detail-navigation {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .news-detail-navigation .nav-link {
    padding: 1.25rem;
  }
  
  .news-detail-navigation .nav-title {
    font-size: 0.9375rem;
  }
  
  .sidebar-widget {
    padding: 1.5rem;
  }
  
  .sidebar-item-image {
    width: 70px;
    height: 70px;
  }
  
  .sidebar-item-title {
    font-size: 0.875rem;
  }
  
  .sidebar-item-desc {
    font-size: 0.75rem;
  }
  
  .feedback-rating i {
    font-size: 1.125rem;
  }
  
  .feedback-quote {
    font-size: 0.875rem;
    padding: 0.875rem 0 0;
  }
  
  .feedback-quote i {
    font-size: 1.25rem;
  }
  
  /* Company Overview Section */
  .company-overview-section {
    padding: 2rem 0;
  }
  
  .company-overview-content {
    padding-right: 0;
    margin-bottom: 2rem;
  }
  
  .company-overview-title {
    font-size: 2rem;
  }
  
  .company-overview-description {
    font-size: 0.9375rem;
    margin-bottom: 2rem;
  }
  
  .company-stats-grid {
    gap: 0.875rem;
  }
  
  .company-stat-item {
    padding: 0.875rem 0.625rem;
  }
  
  .stat-number {
    font-size: 1.625rem;
  }
  
  .stat-plus,
  .stat-percent {
    font-size: 1rem;
  }
  
  .stat-label {
    font-size: 0.75rem;
  }
  
  /* Why Choose Us Section */
  .why-choose-us-section {
    padding: 2rem 0;
  }
  
  .why-choose-header {
    margin-bottom: 2rem;
  }
  
  .why-choose-main-title {
    font-size: 2rem;
  }
  
  .why-choose-subtitle {
    font-size: 1rem;
  }
  
  .core-advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-bottom: 3rem;
  }
  
  .advantage-card {
    padding: 1.5rem 1rem;
  }
  
  .advantage-icon-box {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
  }
  
  .advantage-icon-box i {
    font-size: 1.5rem;
  }
  
  .advantage-card-title {
    font-size: 1.125rem;
  }
  
  .advantage-card-desc {
    font-size: 0.875rem;
  }
  
  .performance-metrics-bar {
    padding: 2rem;
  }
  
  .metric-value {
    font-size: 2.25rem;
  }
  
  .metric-unit {
    font-size: 1.25rem;
  }
  
  .metric-label {
    font-size: 0.875rem;
  }
  
  /* Certificates Showcase Section */
  .certificates-showcase-section {
    padding: 2rem 0;
  }
  
  .certificates-section-header {
    margin-bottom: 3rem;
  }
  
  .certificates-section-title {
    font-size: 2rem;
  }
  
  .certificates-section-subtitle {
    font-size: 1rem;
  }
  
  .certificates-carousel-container {
    padding: 0 60px;
  }
  
  .certificates-carousel-track {
    gap: 0.75rem;
    padding: 0 0.75rem 1.5rem;
  }
  
  .certificate-carousel-item {
    flex: 0 0 calc(33.333% - 0.5rem);
    min-width: 0;
  }
  
  .certificate-image-container {
    padding-top: 105%;
  }
  
  .certificates-nav-button {
    width: 48px;
    height: 48px;
  }
  
  .certificates-nav-button i {
    font-size: 1rem;
  }
  
  .certificates-dots-container {
    margin-top: 2.5rem;
    gap: 0.625rem;
  }
  
  .certificate-dot {
    width: 9px;
    height: 9px;
  }
  
  .certificate-dot.active {
    width: 28px;
  }
}

/* Small devices (landscape phones, less than 768px) */
@media (max-width: 767.98px) {
  /* Body Padding */
  body {
    padding-top: 68px;
  }
  
  /* Header */
  .site-header .navbar {
    padding: 0.625rem 0;
  }
  
  /* Logo */
  .logo-img {
    height: 44px;
  }
  
  /* Page Banner */
  .page-banner {
    height: 240px;
   
  }
  
  .page-banner-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
  }
  
  .page-banner .breadcrumb {
    font-size: 0.8125rem;
  }
  
  /* Product Detail */
  .media-display {
    padding: 1rem;
  }
  
  .thumbnail-list {
    gap: 0.5rem;
  }
  
  .thumbnail-item {
    width: 75px;
    height: 75px;
  }
  
  .play-icon {
    font-size: 1.75rem;
  }
  
  /* .product-badge {
    font-size: 0.75rem;
    padding: 0.375rem 0.875rem;
  } */
  
  .product-detail-title {
    font-size: 1.75rem;
  }
  
  .product-detail-description {
    font-size: 0.875rem;
  }
  
  .product-actions .btn {
    padding: 0.875rem 1.25rem;
    font-size: 0.9375rem;
  }
  
  /* Product Tabs */
  .product-tabs-section {
    padding: 2rem 0;
  }
  
  .tabs-nav-wrapper {
    top: 68px;
    margin-bottom: 1.5rem;
  }
  
  .tabs-nav {
    padding: 0.875rem 0;
    gap: 1rem;
  }
  
  .tabs-nav .nav-link {
    padding: 0.625rem 1rem;
    font-size: 0.8125rem;
  }
  
  .tabs-nav .nav-link i {
    font-size: 0.9375rem;
  }
  
  .tab-section {
    scroll-margin-top: 130px;
  }
  
  .tab-content-inner {
    padding: 2rem 1.5rem;
  }
  
  .tab-section-title {
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
  }
  
  .tab-section-description {
    font-size: 0.875rem;
    line-height: 1.7;
  }
  
  .quote-form-wrapper {
    padding: 1.5rem;
  }
  
  .form-control,
  .form-select {
    padding: 0.75rem 0.875rem;
    font-size: 0.875rem;
  }
  
  /* Case Detail */
  .case-media-display {
    margin-bottom: 1.25rem;
  }
  
  .play-icon {
    width: 70px;
    height: 70px;
    font-size: 2.25rem;
  }
  
  .case-thumbnail-item {
    width: 90px;
    height: 90px;
  }
  
  .thumbnail-play-icon {
    width: 28px;
    height: 28px;
    font-size: 0.875rem;
  }
  
  .case-detail-title {
    font-size: 2rem;
  }
  
  .case-detail-specs {
    gap: 1rem;
    padding: 1.5rem;
  }
  
  .spec-icon {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .spec-label {
    font-size: 0.8125rem;
  }
  
  .spec-value {
    font-size: 0.9375rem;
  }
  
  .case-detail-actions .btn {
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
  }
  
  /* Solutions List */
  .solution-tabs-wrapper {
    margin-bottom: 2rem;
  }
  
  .solution-tabs {
    gap: 0.625rem;
  }
  
  .solution-tab-btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
  }
  
  .solution-tab-btn i {
    font-size: 1rem;
  }
  
  .solution-item {
    margin-bottom: 2rem;
  }
  
  .solution-main {
    padding: 1.5rem;
  }
  
  .solution-media-toggle {
    gap: 0.5rem;
    margin-bottom: 0.75rem;
  }
  
  .media-toggle-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
  }
  
  .media-toggle-btn i {
    font-size: 0.875rem;
  }
  
  .solution-item .solution-title {
    font-size: 1.5rem;
  }
  
  .solution-item .solution-description {
    font-size: 0.875rem;
  }
  
  .solution-item .solution-features {
    gap: 0.625rem;
    margin-bottom: 1.5rem;
  }
  
  .solution-feature-item {
    font-size: 0.875rem;
  }
  
  .solution-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
  }
  
  .solution-materials {
    padding: 1.5rem;
  }
  
  .materials-title {
    font-size: 1rem;
  }
  
  .material-name {
    font-size: 0.75rem;
    padding: 0.625rem;
  }
  
  /* Pagination */
  .archive-pagination {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
  }
  
  .pagination {
    gap: 0.375rem;
  }
  
  .page-link {
    min-width: 40px;
    height: 40px;
    padding: 0.5rem;
    font-size: 0.875rem;
  }
  
  /* Container Padding */
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  /* Navigation */
  .navbar-collapse {
    margin-top: 0.875rem;
    padding: 1.25rem;
  }
  
  .nav-link {
    font-size: 0.9375rem;
    padding: 0.75rem 0;
  }
  
  /* Search Input */
  .search-input {
    font-size: 1rem;
    padding: 0.625rem 1rem;
  }
  
  .btn-search {
    padding: 0.625rem 1rem;
  }
  
  .btn-cta {
    font-size: 1rem;
    padding: 0.875rem 1.5rem;
  }
  
  /* Banner */
  .hero-banner {
    margin-top: -72px;
  }
  
  .carousel-item {
    /* 使用img标签时，高度由图片自动决定 */
  }
  
  .banner-content {
    padding: 1.25rem 0;
    align-items: center;
    text-align: center;
  }
  
  .banner-title {
    font-size: 2.25rem;
    margin-bottom: 1rem;
  }
  
  .banner-description {
    font-size: 1rem;
    margin-bottom: 1.75rem;
    max-width: 100%;
  }
  
  .banner-buttons {
    justify-content: center;
    gap: 0.75rem;
  }
  
  .banner-buttons .btn {
    padding: 0.75rem 1.75rem;
    font-size: 0.9375rem;
  }
  
  .carousel-control-prev,
  .carousel-control-next {
    width: 45px;
    height: 45px;
  }
  
  .carousel-control-prev {
    left: 0.75rem;
  }
  
  .carousel-control-next {
    right: 0.75rem;
  }
  
  .carousel-control-icon i {
    font-size: 1.25rem;
  }
  
  .carousel-indicators {
    bottom: 1.5rem;
    gap: 0.625rem;
  }
  
  .carousel-indicators [data-bs-target] {
    width: 7px;
    height: 7px;
  }
  
  /* Solutions Section */
  .section-title {
    font-size: 1.75rem;
  }
  
  .section-description {
    font-size: 0.9375rem;
  }
  
  .solution-card:hover {
    transform: scale(1.015);
  }
  
  .solution-card .solution-content {
    padding: 1.125rem;
  }
  
  .solution-card .solution-title {
    font-size: 1rem;
    margin-bottom: 0.875rem;
  }
  
  .waste-types {
    padding: 0.875rem;
    margin-bottom: 1rem;
  }
  
  .waste-icons {
    gap: 0.5rem;
  }
  
  .waste-icon-item {
    width: calc((100% - 1rem) / 3);
  }
  
  .waste-icon-item img {
    width: 44px;
    height: 44px;
  }
  
  .waste-icon-item span {
    font-size: 0.6875rem;
  }
  
  /* Products Section */
  .product-card:hover {
    transform: scale(1.01);
  }
  
  .product-image-wrapper {
    padding-top: 70%;
  }
  
  .product-info {
    padding: 1rem;
  }
  
  .product-name {
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
  }
  
  .product-link {
    font-size: 0.875rem;
  }
  
  /* About Section */
  .about-section {
    min-height: 450px;
  }
  
  .about-content-wrapper {
    padding: 3rem 0;
  }
  
  .about-subtitle {
    font-size: 0.75rem;
    padding: 0.375rem 0.875rem;
  }
  
  .about-title {
    font-size: 1.875rem;
    margin-bottom: 1.25rem;
  }
  
  .about-description {
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
  }
  
  .about-btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
  }
  
  .stat-card {
    padding: 1.25rem;
  }
  
  .stat-number {
    font-size: 2rem;
    margin-bottom: 0.375rem;
  }
  
  .stat-label {
    font-size: 0.8125rem;
  }
  
  /* Cases Section */
  .case-card:hover {
    transform: scale(1.01);
  }
  
  .case-image-wrapper {
    padding-top: 60%;
  }
  
  .case-tags {
    top: 0.75rem;
    left: 0.75rem;
    right: 0.75rem;
  }
  
  .case-tag {
    padding: 0.375rem 0.625rem;
    font-size: 0.6875rem;
    gap: 0.25rem;
  }
  
  .case-tag i {
    font-size: 0.75rem;
  }
  
  .case-content {
    padding: 1rem;
  }
  
  .case-title {
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
  }
  
  .case-link {
    font-size: 0.875rem;
  }
  
  /* News Section */
  .news-featured {
    margin-bottom: 1.5rem;
  }
  
  .news-image-wrapper {
    padding-top: 42%;
  }
  
  .news-title {
    font-size: 1.0625rem;
  }
  
  .news-content {
    padding: 1.125rem;
  }
  

  
  .news-badge {
    padding: 0.375rem 0.75rem;
    font-size: 0.6875rem;
  }
  
  .news-list {
    gap: 0.75rem;
  }
  
  .news-item {
    padding: 0.75rem;
    gap: 0.75rem;
  }
  
  .news-item:hover {
    transform: translateX(2px);
  }
  
  .news-item-image-wrapper {
    width: 90px;
    height: 60px;
  }
  
  .news-item-title {
    font-size: 0.8125rem;
  }
  
  .news-item-date {
    font-size: 0.6875rem;
  }
  
  /* Exhibition Section */
  .exhibition-card:hover {
    transform: scale(1.01);
  }
  
  .exhibition-card {
    padding: 1rem;
  }
  
  .exhibition-badge {
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.625rem;
  }
  
  .exhibition-logo {
    height: 80px;
    margin-top: 1rem;
    padding: 0.75rem;
  }
  
  .exhibition-title {
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
  }
  
  .exhibition-info {
    gap: 0.5rem;
  }
  
  .exhibition-info li {
    font-size: 0.75rem;
  }
  
  .exhibition-info li i {
    font-size: 0.875rem;
  }
  
  /* Footer */
  .footer-main {
    padding: 2.5rem 0 1.5rem;
  }
  
  .footer-brand {
    text-align: center;
    margin-bottom: 1.5rem;
  }
  
  .footer-logo-img {
    height: 36px;
  }
  
  .footer-description {
    font-size: 0.8125rem;
    max-width: 100%;
  }
  
  .footer-title {
    font-size: 0.875rem;
    margin-bottom: 0.875rem;
    padding-bottom: 0.625rem;
  }
  
  .footer-title::after {
    width: 24px;
  }
  
  .footer-links {
    gap: 0.5rem;
  }
  
  .footer-links li a {
    font-size: 0.8125rem;
  }
  
  .footer-contact {
    gap: 0.75rem;
  }
  
  .footer-contact li {
    font-size: 0.8125rem;
    gap: 0.625rem;
  }
  
  .footer-contact li i {
    font-size: 1rem;
  }
  
  .footer-bottom {
    padding: 1.25rem 0;
  }
  
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
  }
  
  .copyright {
    font-size: 0.8125rem;
  }
  
  .footer-legal {
    gap: 1rem;
  }
  
  .footer-legal li a {
    font-size: 0.8125rem;
  }
  
  /* News Archive Section */
  .news-archive-section {
    padding: 4rem 0;
  }
  
  .news-archive-card:hover {
    transform: none;
  }
  
  .news-archive-content {
    padding: 1.125rem;
    gap: 0.875rem;
  }
  
  .news-archive-title {
    font-size: 0.9375rem;
  }
  
  .news-archive-excerpt {
    font-size: 0.8125rem;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  
  .news-archive-link {
    font-size: 0.875rem;
  }
  
  .news-archive-date {
    font-size: 0.75rem;
  }

  /* Contact Info Section */
  .contact-info-cards {
    position: static;
  }

  .contact-info-header {
    margin-bottom: 1.5rem;
  }

  /* Map Location Section */
  .map-location-section {
    padding: 2rem 0;
  }

  .map-location-header {
    margin-bottom: 2.5rem;
  }

  .map-location-title {
    font-size: 2rem;
  }

  .map-location-subtitle {
    font-size: 1rem;
  }

  .map-location-tabs {
    gap: 1rem;
  }

  .map-tab-btn {
    min-width: 240px;
  }

  .map-iframe-wrapper iframe {
    min-height: 320px;
  }

  .map-address-card {
    padding: 1.25rem;
  }

  .map-address-icon {
    width: 52px;
    height: 52px;
  }

  .map-address-icon i {
    font-size: 1.625rem;
  }

  .map-address-title {
    font-size: 1.125rem;
  }
  
  .news-archive-date i {
    font-size: 0.875rem;
  }
  
  /* Customer Feedback Section */
  .customer-feedback-section {
    padding: 2rem 0;
  }
  
  .feedback-main-title {
    font-size: 2rem;
  }
  
  .feedback-subtitle {
    font-size: 0.9375rem;
  }
  
  .feedback-header {
    margin-bottom: 2.5rem;
  }
  
  .feedback-title-underline {
    width: 60px;
    height: 3px;
  }
  
  .feedback-card {
    padding: 1.25rem;
    gap: 1rem;
  }
  
  .feedback-card:hover {
    transform: translateY(-4px);
  }
  
  .feedback-country-flag {
    width: 36px;
    height: 36px;
  }
  
  .feedback-country-name {
    font-size: 0.875rem;
  }
  
  /* News Detail Section */
  .news-detail-section {
    padding: 4rem 0;
  }
  
  .news-detail-article {
    padding: 1.5rem;
  }
  
  .news-detail-title {
    font-size: 1.75rem;
  }
  
  .news-detail-meta {
    gap: 1rem;
  }
  
  .meta-item {
    font-size: 0.875rem;
  }
  
  .news-detail-content p {
    font-size: 0.9375rem;
  }
  
  .tags-title,
  .share-title {
    font-size: 1rem;
  }
  
  .news-tag {
    font-size: 0.8125rem;
    padding: 0.375rem 1rem;
  }
  
  .share-btn {
    width: 44px;
    height: 44px;
    font-size: 1.125rem;
  }
  
  .news-detail-navigation {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .news-detail-navigation .nav-link {
    padding: 1rem;
    gap: 0.75rem;
  }
  
  .news-detail-navigation .nav-icon {
    width: 36px;
    height: 36px;
  }
  
  .news-detail-navigation .nav-icon i {
    font-size: 1.125rem;
  }
  
  .news-detail-navigation .nav-title {
    font-size: 0.875rem;
  }
  
  .news-sidebar {
    position: static;
    margin-top: 2rem;
  }
  
  .sidebar-widget {
    padding: 1.5rem;
    margin-bottom: 1.25rem;
  }
  
  .widget-title {
    font-size: 1.125rem;
  }
  
  .widget-link {
    font-size: 0.8125rem;
  }
  
  .sidebar-item {
    gap: 0.875rem;
    padding: 0.625rem;
  }
  
  .sidebar-item-image {
    width: 60px;
    height: 60px;
  }
  
  .sidebar-item-title {
    font-size: 0.875rem;
  }
  
  .sidebar-item-desc {
    font-size: 0.75rem;
  }
  
  .feedback-rating {
    gap: 0.25rem;
    padding: 0.625rem 0;
  }
  
  .feedback-rating i {
    font-size: 1rem;
  }
  
  .feedback-quote {
    font-size: 0.8125rem;
    padding: 0.75rem 0 0;
  }
  
  .feedback-quote i {
    font-size: 1.125rem;
  }
  
  /* Company Overview Section */
  .company-overview-section {
    padding: 2rem 0;
  }
  
  .company-overview-title {
    font-size: 1.75rem;
  }
  
  .company-overview-description {
    font-size: 0.9375rem;
    margin-bottom: 1.75rem;
  }
  
  .company-stats-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  
  .company-stat-item {
    padding: 0.875rem 0.625rem;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .stat-plus,
  .stat-percent {
    font-size: 0.9375rem;
  }
  
  .stat-label {
    font-size: 0.75rem;
  }
  
  /* Why Choose Us Section */
  .why-choose-us-section {
    padding: 2rem 0;
  }
  
  .why-choose-header {
    margin-bottom: 2rem;
  }
  
  .why-choose-main-title {
    font-size: 1.75rem;
  }
  
  .why-choose-subtitle {
    font-size: 0.9375rem;
  }
  
  .core-advantages-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 2.5rem;
  }
  
  .advantage-card {
    padding: 1.5rem 1rem;
  }
  
  .advantage-icon-box {
    width: 56px;
    height: 56px;
    margin-bottom: 1rem;
    border-radius: 16px;
  }
  
  .advantage-icon-box::after {
    border-radius: 18px;
  }
  
  .advantage-icon-box i {
    font-size: 1.375rem;
  }
  
  .advantage-card-title {
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }
  
  .advantage-card-desc {
    font-size: 0.8125rem;
  }
  
  .performance-metrics-bar {
    flex-direction: column;
    padding: 1.5rem 1rem;
    gap: 1.5rem;
  }
  
  .metric-item {
    width: 100%;
  }
  
  .metric-value {
    font-size: 2rem;
  }
  
  .metric-unit {
    font-size: 1.125rem;
  }
  
  .metric-label {
    font-size: 0.8125rem;
  }
  
  .metric-divider {
    display: none;
  }
  
  /* Certificates Showcase Section */
  .certificates-showcase-section {
    padding: 2rem 0;
  }
  
  .certificates-section-header {
    margin-bottom: 2.5rem;
  }
  
  .certificates-section-title {
    font-size: 1.75rem;
  }
  
  .certificates-section-subtitle {
    font-size: 0.9375rem;
  }
  
  .certificates-carousel-container {
    padding: 0 50px;
  }
  
  .certificates-carousel-track {
    gap: 0.75rem;
    padding: 0 0.75rem 1.5rem;
  }
  
  .certificate-carousel-item {
    flex: 0 0 calc(50% - 0.375rem);
    min-width: 0;
  }
  
  .certificate-image-container {
    padding-top: 110%;
  }
  
  .certificates-nav-button {
    width: 44px;
    height: 44px;
  }
  
  .certificates-nav-button i {
    font-size: 0.9375rem;
  }
  
  .certificates-dots-container {
    margin-top: 2.25rem;
    gap: 0.5rem;
  }
  
  .certificate-dot {
    width: 8px;
    height: 8px;
  }
  
  .certificate-dot.active {
    width: 24px;
  }
}

/* Extra small devices (portrait phones, less than 576px) */
@media (max-width: 575.98px) {
  /* Certificates Showcase Section */
  .certificates-showcase-section {
    padding: 2rem 0;
  }
  
  .certificates-section-header {
    margin-bottom: 2rem;
  }
  
  .certificates-section-title {
    font-size: 1.5rem;
  }
  
  .certificates-section-subtitle {
    font-size: 0.875rem;
  }
  
  .certificates-carousel-container {
    padding: 0 45px;
  }
  
  .certificates-carousel-track {
    gap: 1rem;
  }
  
  .certificates-carousel-track {
    gap: 0.5rem;
    padding: 0 0.5rem 1.25rem;
  }
  
  .certificate-carousel-item {
    flex: 0 0 calc(50% - 0.25rem);
    min-width: 0;
  }
  
  .certificate-image-container {
    padding-top: 110%;
  }
  
  .certificates-nav-button {
    width: 40px;
    height: 40px;
  }
  
  .certificates-nav-button i {
    font-size: 0.875rem;
  }
  
  .certificates-dots-container {
    margin-top: 2rem;
    gap: 0.5rem;
  }
  
  .certificate-dot {
    width: 7px;
    height: 7px;
  }
  
  .certificate-dot.active {
    width: 20px;
  }
  

  /* Body Padding */
  body {
    padding-top: 64px;
  }
  
  /* Header */
  .site-header .navbar {
    padding: 0.5rem 0;
  }
  
  /* Logo */
  .logo-img {
    height: 40px;
  }
  
  /* Page Banner */
  .page-banner {
    height: 200px;
  
  }
  
  .page-banner-content {
    padding: 1.5rem 0.75rem;
  }
  
  .page-banner-title {
    font-size: 1.5rem;
    margin-bottom: 0.875rem;
  }
  
  .page-banner .breadcrumb {
    font-size: 0.75rem;
  }
  
  /* Product Detail */
  .media-display {
    padding: 0.75rem;
    margin-bottom: 1rem;
  }
  
  .image-wrapper {
    padding: 0.75rem;
  }
  
  .thumbnail-list {
    gap: 0.375rem;
  }
  
  .thumbnail-item {
    width: 65px;
    height: 65px;
    padding: 0.25rem;
  }
  
  .play-icon {
    font-size: 1.5rem;
  }
  
  .product-badge-label {
    font-size: 0.75rem;
  }
  
  .product-badge {
    font-size: 0.6875rem;
    padding: 0.375rem 0.75rem;
  }
  
  .product-detail-title {
    font-size: 1.5rem;
  }
  
  .product-detail-description {
    font-size: 0.8125rem;
  }
  
  .product-actions {
    gap: 0.75rem;
  }
  
  .product-actions .btn {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
  }
  
  .product-actions .btn i {
    font-size: 1rem;
  }
  
  /* Product Tabs */
  .product-tabs-section {
    padding: 1.5rem 0;
  }
  
  .tabs-nav-wrapper {
    top: 64px;
    margin-bottom: 1rem;
  }
  
  .tabs-nav {
    padding: 0.75rem 0;
    gap: 0.75rem;
    justify-content: flex-start;
  }
  
  .tabs-nav .nav-link {
    padding: 0.625rem 0.875rem;
    font-size: 0.75rem;
  }
  
  /* 保留标题文字显示 Keep tab title text visible */
  /* .tabs-nav .nav-link span {
    display: none;
  } */
  
  .tabs-nav .nav-link i {
    font-size: 1.125rem;
  }
  
  .tab-section {
    scroll-margin-top: 120px;
  }
  
  .tab-content-inner {
    padding: 1.5rem 1rem;
  }
  
  .tab-section-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
  }
  
  .tab-section-description {
    font-size: 0.8125rem;
    line-height: 1.6;
  }
  
  .quote-form-wrapper {
    padding: 1.25rem;
  }
  
  .form-label {
    font-size: 0.75rem;
  }
  
  .form-control,
  .form-select {
    padding: 0.625rem 0.75rem;
    font-size: 0.8125rem;
  }
  
  .quote-submit-btn {
    max-width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
  }
  
  /* Case Detail */
  .case-media-display {
    margin-bottom: 1rem;
    border-radius: var(--radius-lg);
  }
  
  .play-icon {
    width: 60px;
    height: 60px;
    font-size: 2rem;
  }
  
  .case-thumbnail-item {
    width: 80px;
    height: 80px;
  }
  
  .thumbnail-play-icon {
    width: 24px;
    height: 24px;
    font-size: 0.75rem;
  }
  
  .case-info {
    padding: 0;
  }
  
  .case-detail-title {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
  }
  
  .case-detail-specs {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1.25rem;
  }
  
  .spec-icon {
    width: 36px;
    height: 36px;
    font-size: 0.9375rem;
  }
  
  .spec-label {
    font-size: 0.75rem;
  }
  
  .spec-value {
    font-size: 0.875rem;
  }
  
  .case-detail-actions {
    flex-direction: column;
  }
  
  .case-detail-actions .btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    justify-content: center;
  }
  
  .case-detail-actions .btn i {
    font-size: 1.125rem;
  }
  
  /* Related Products */
  .related-product-info {
    padding: 0.75rem;
  }
  
  .related-product-title {
    font-size: 0.8125rem;
    margin-bottom: 0.5rem;
  }
  
  .related-product-btn {
    font-size: 0.75rem;
  }
  
  /* Solutions List */
  .solution-tabs-wrapper {
    margin-bottom: 1.5rem;
  }
  
  .solution-tabs {
    gap: 0.5rem;
    padding: 0.75rem;
  }
  
  .solution-tab-btn {
    padding: 0.625rem 1rem;
    font-size: 0.8125rem;
    gap: 0.5rem;
  }
  
  .solution-tab-btn i {
    font-size: 0.9375rem;
  }
  
  .solution-item {
    margin-bottom: 1.5rem;
  }
  
  .solution-main {
    padding: 1.25rem;
  }
  
  .solution-media-toggle {
    gap: 0.5rem;
    margin-bottom: 0.625rem;
  }
  
  .media-toggle-btn {
    padding: 0.5rem 0.875rem;
    font-size: 0.75rem;
  }
  
  .media-toggle-btn i {
    font-size: 0.875rem;
  }
  
  .solution-item .solution-title {
    font-size: 1.25rem;
    margin-bottom: 0.875rem;
  }
  
  .solution-item .solution-description {
    font-size: 0.8125rem;
    margin-bottom: 1.25rem;
  }
  
  .solution-item .solution-features {
    gap: 0.5rem;
    margin-bottom: 1.25rem;
  }
  
  .solution-feature-item {
    font-size: 0.8125rem;
  }
  
  .solution-feature-item i {
    font-size: 1rem;
  }
  
  .solution-btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }
  
  .solution-materials {
    padding: 1.25rem;
  }
  
  .materials-title {
    font-size: 0.9375rem;
  }
  
  .materials-title i {
    font-size: 1.25rem;
  }
  
  .material-name {
    font-size: 0.6875rem;
    padding: 0.5rem;
  }
  
  /* Pagination */
  .archive-pagination {
    margin-top: 2rem;
    padding-top: 1.25rem;
  }
  
  .pagination {
    gap: 0.25rem;
    flex-wrap: wrap;
  }
  
  .page-link {
    min-width: 36px;
    height: 36px;
    padding: 0.375rem;
    font-size: 0.8125rem;
  }
  
  .page-link i {
    font-size: 0.875rem;
  }
  
  /* Container */
  .container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }
  
  /* Navigation */
  .navbar-collapse {
    margin-top: 0.75rem;
    padding: 1rem;
  }
  
  .navbar-nav {
    margin-bottom: 1rem;
  }
  
  .nav-link {
    font-size: 0.875rem;
    padding: 0.625rem 0;
  }
  
  /* Search */
  .search-input {
    font-size: 0.875rem;
    padding: 0.5rem 0.875rem;
  }
  
  .btn-search {
    padding: 0.5rem 0.875rem;
  }
  
  .btn-search i {
    font-size: 0.875rem;
  }
  
  .btn-cta {
    font-size: 0.9375rem;
    padding: 0.75rem 1.25rem;
  }
  
  /* Navbar Toggler */
  .navbar-toggler {
    padding: 0.5rem;
  }
  
  .navbar-toggler-icon {
    width: 1.25rem;
    height: 1.25rem;
  }

  /* Contact Info Section */
  .contact-info-section {
    padding: 2rem 0;
  }

  .contact-info-title {
    font-size: 1.375rem;
  }

  .contact-info-item {
    padding: 1.125rem;
    border-radius: 16px;
  }

  .contact-icon-wrapper {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .contact-icon {
    font-size: 1.375rem;
  }

  .contact-label {
    font-size: 0.75rem;
  }

  .contact-value {
    font-size: 0.9375rem;
  }

  /* 404 Error Page */
  .error-404-section {
    padding: 3rem 0;
  }

  .error-circle-1 {
    width: 300px;
    height: 300px;
  }

  .error-circle-2 {
    width: 250px;
    height: 250px;
  }

  .error-circle-3 {
    width: 150px;
    height: 150px;
  }

  .error-404-number {
    gap: 1rem;
    margin-bottom: 1.75rem;
  }

  .error-digit {
    font-size: 6rem;
  }

  .error-digit-middle {
    font-size: 4rem;
  }

  .error-404-content {
    margin-bottom: 2.5rem;
  }

  .error-404-title {
    font-size: 1.75rem;
  }

  .error-404-description {
    font-size: 0.9375rem;
  }

  .error-404-search {
    margin-bottom: 2rem;
  }

  .error-search-input {
    padding: 0.75rem 1rem 0.75rem 3.25rem;
    font-size: 0.9375rem;
  }

  .error-search-btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9375rem;
  }

  .error-404-actions {
    gap: 1rem;
    margin-bottom: 2.5rem;
  }

  .error-btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
  }

  .error-links-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .error-link-item {
    padding: 0.875rem;
  }

  .error-link-item i {
    font-size: 1.5rem;
  }

  /* Map Location Section */
  .map-location-section {
    padding: 2rem 0;
  }

  .map-location-header {
    margin-bottom: 2rem;
  }

  .map-location-title {
    font-size: 1.75rem;
  }

  .map-location-subtitle {
    font-size: 0.9375rem;
  }

  .map-location-tabs {
    flex-direction: column;
    gap: 0.875rem;
    margin-bottom: 2rem;
  }

  .map-tab-btn {
    min-width: auto;
    width: 100%;
    padding: 1rem 1.25rem;
  }

  .map-tab-icon {
    width: 44px;
    height: 44px;
  }

  .map-tab-icon i {
    font-size: 1.375rem;
  }

  .map-tab-title {
    font-size: 0.9375rem;
  }

  .map-iframe-wrapper {
    border-radius: 20px;
  }

  .map-iframe-wrapper iframe {
    min-height: 300px;
  }

  .map-address-card {
    border-radius: 18px;
    padding: 1.125rem;
    gap: 0.875rem;
  }

  .map-address-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .map-address-icon i {
    font-size: 1.5rem;
  }

  .map-address-title {
    font-size: 1rem;
  }

  .map-address-text {
    font-size: 0.75rem;
    margin-bottom: 0.875rem;
    padding-bottom: 0.875rem;
  }

  .map-address-link {
    padding: 0.625rem 0.875rem;
  }
  
  /* Banner */
  .hero-banner {
    margin-top: -2px;
  
  }
  
  .carousel-item {
    /* 使用img标签时，高度由图片自动决定 */
  }
  
  .banner-content {
    padding: 1rem 0;
  }
  
  .banner-title {
    font-size: 1.875rem;
    margin-bottom: 0.875rem;
    line-height: 1.15;
  }
  
  .banner-description {
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
  }
  
  .banner-buttons {
    flex-direction: column;
    width: 100%;
    gap: 0.625rem;
  }
  
  .banner-buttons .btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
  }
  
  .carousel-control-prev,
  .carousel-control-next {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.15);
  }
  
  .carousel-control-prev {
    left: 0.5rem;
  }
  
  .carousel-control-next {
    right: 0.5rem;
  }
  
  .carousel-control-icon i {
    font-size: 1.125rem;
  }
  
  .carousel-indicators {
    bottom: 1.25rem;
    gap: 0.5rem;
  }
  
  .carousel-indicators [data-bs-target] {
    width: 6px;
    height: 6px;
    border-width: 1.5px;
  }
  
  /* Solutions Section */
  .section-header {
    margin-bottom: 2rem;
  }
  
  .section-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
  }
  
  .section-description {
    font-size: 0.875rem;
  }
  
  .solution-card {
    margin-bottom: 1rem;
  }
  
  .solution-card:hover {
    transform: scale(1.01);
  }
  

  
  .solution-card .solution-content {
    padding: 1rem;
  }
  
  .solution-card .solution-title {
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
  }
  
  .waste-types {
    padding: 0.75rem;
    margin-bottom: 0.875rem;
  }
  
  .waste-label {
    font-size: 0.6875rem;
    margin-bottom: 0.5rem;
  }
  
  .waste-icons {
    gap: 0.5rem;
  }
  
  .waste-icon-item {
    width: calc((100% - 0.5rem) / 2);
  }
  
  .waste-icon-item img {
    width: 60px;
    height: 60px;
  }
  
  .waste-icon-item span {
    font-size: 0.75rem;
  }
  
  .solution-link {
    font-size: 0.875rem;
  }
  
  /* Why Choose Us */
  .why-banner {
    padding: 1.5rem 1.25rem;
  }
  
  .banner-title {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    line-height: 1.35;
  }
  
  .banner-subtitle {
    font-size: 0.8125rem;
    line-height: 1.5;
  }
  
  .banner-btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
    margin-top: 1rem;
  }
  
  .feature-card {
    padding: 1.5rem 1rem;
  }
  
  .feature-icon-wrapper {
    margin-bottom: 1rem;
  }
  
  .feature-icon {
    width: 60px;
    height: 60px;
  }
  
  .feature-icon i {
    font-size: 1.5rem;
  }
  
  .feature-title {
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }
  
  .feature-description {
    font-size: 0.8125rem;
  }
  
  /* Products Section */
  .product-image-wrapper {
    padding-top: 65%;
  }
  
  .product-info {
    padding: 1rem;
  }
  
  .product-name {
    font-size: 0.9375rem;
    margin-bottom: 0.625rem;
  }
  
  .product-link {
    font-size: 0.875rem;
  }
  
  /* About Section */
  .about-section {
    min-height: auto;
  }
  
  .about-content-wrapper {
    padding: 2.5rem 0;
  }
  
  .about-text {
    margin-bottom: 2rem;
  }
  
  .about-subtitle {
    font-size: 0.6875rem;
    padding: 0.3125rem 0.75rem;
    margin-bottom: 0.75rem;
  }
  
  .about-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .about-description {
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    line-height: 1.6;
  }
  
  .about-btn {
    width: 100%;
    justify-content: center;
    padding: 0.875rem 1.25rem;
    font-size: 0.9375rem;
  }
  
  .about-stats-grid {
    gap: 0.75rem;
  }
  
  .stat-card {
    padding: 1rem 0.75rem;
  }
  
  .stat-number {
    font-size: 1.75rem;
  }
  
  .stat-label {
    font-size: 0.6875rem;
    letter-spacing: 0.03em;
  }
  
  /* Cases Section */
  .case-image-wrapper {
    padding-top: 56.25%;
  }
  
  .case-tags {
    top: 0.625rem;
    left: 0.625rem;
    right: 0.625rem;
    flex-direction: row;
    align-items: center;
    gap: 0.375rem;
  }
  
  .case-tag {
    padding: 0.3125rem 0.5rem;
    font-size: 0.625rem;
  }
  
  .case-content {
    padding: 0.875rem;
  }
  
  .case-title {
    font-size: 0.9375rem;
    margin-bottom: 0.625rem;
  }
  
  .case-link {
    font-size: 0.8125rem;
  }
  
  /* News Section */
  .news-image-wrapper {
    padding-top: 50%;
  }
  
  .news-title {
    font-size: 1rem;
  }
  
  .news-content {
    padding: 1rem;
  }
  
  .news-meta {
    margin-bottom: 0.625rem;
  }
  
  .news-date {
    font-size: 0.75rem;
  }
  
 
  .news-link {
    font-size: 0.875rem;
  }
  
  .news-badge {
    padding: 0.3125rem 0.625rem;
    font-size: 0.625rem;
    top: 0.75rem;
    left: 0.75rem;
  }
  
  .news-list {
    gap: 0.625rem;
  }
  
  .news-item {
    padding: 0.625rem;
    gap: 0.625rem;
  }
  
  .news-item-image-wrapper {
    width: 80px;
    height: 56px;
  }
  
  .news-item-title {
    font-size: 0.8125rem;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  
  .news-item-date {
    font-size: 0.625rem;
    margin-bottom: 0.25rem;
  }
  
  /* Exhibition Section */
  .exhibition-card {
    padding: 0.875rem;
  }
  
  .exhibition-badge {
    top: 0.625rem;
    right: 0.625rem;
    padding: 0.1875rem 0.375rem;
    font-size: 0.5625rem;
    gap: 0.25rem;
  }
  
  .exhibition-badge i {
    font-size: 0.75rem;
  }
  
  .exhibition-logo {
    height: 70px;
    margin-top: 0.75rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
  }
  
  .exhibition-title {
    font-size: 0.875rem;
    margin-bottom: 0.625rem;
  }
  
  .exhibition-info {
    gap: 0.375rem;
  }
  
  .exhibition-info li {
    font-size: 0.6875rem;
    gap: 0.375rem;
  }
  
  .exhibition-info li i {
    font-size: 0.75rem;
    width: 1rem;
  }
  
  /* Footer */
  .footer-main {
    padding: 2rem 0 1.25rem;
  }
  
  .footer-logo-img {
    height: 32px;
  }
  
  .footer-description {
    font-size: 0.75rem;
    line-height: 1.6;
  }
  
  .footer-title {
    font-size: 0.8125rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
  }
  
  .footer-title::after {
    width: 20px;
  }
  
  .footer-links {
    gap: 0.375rem;
  }
  
  .footer-links li a {
    font-size: 0.75rem;
  }
  
  .footer-contact {
    gap: 0.625rem;
  }
  
  .footer-contact li {
    font-size: 0.75rem;
    gap: 0.5rem;
  }
  
  .footer-contact li i {
    font-size: 0.875rem;
  }
  
  .footer-bottom {
    padding: 1rem 0;
  }
  
  .copyright {
    font-size: 0.75rem;
  }
  
  .footer-legal {
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .footer-legal li a {
    font-size: 0.75rem;
  }
  
  /* News Archive Section */
  .news-archive-section {
    padding: 3rem 0;
  }
  
  .news-archive-image-wrapper {
    padding-top: 60%;
  }
  
  /* Contact Info Section */
  .contact-info-section {
    padding: 2rem 0;
  }

  .contact-info-header {
    margin-bottom: 1.25rem;
  }

  .contact-info-title {
    font-size: 1.25rem;
  }

  .contact-info-subtitle {
    font-size: 0.875rem;
  }

  .contact-info-item {
    padding: 1rem;
    gap: 0.875rem;
    border-radius: 14px;
    margin-bottom: 0.875rem;
  }

  .contact-icon-wrapper {
    width: 40px;
    height: 40px;
    border-radius: 10px;
  }

  .contact-icon {
    font-size: 1.25rem;
  }

  .contact-label {
    font-size: 0.6875rem;
  }

  .contact-value {
    font-size: 0.875rem;
  }

  .contact-hint {
    font-size: 0.75rem;
  }

  .contact-arrow {
    font-size: 1rem;
  }

  /* 404 Error Page */
  .error-404-section {
    padding: 2.5rem 0;
  }

  .error-circle {
    display: none;
  }

  .error-404-number {
    gap: 0.75rem;
    margin-bottom: 1.5rem;
  }

  .error-digit {
    font-size: 4.5rem;
  }

  .error-digit-middle {
    font-size: 3rem;
  }

  .error-404-content {
    margin-bottom: 2rem;
  }

  .error-404-title {
    font-size: 1.5rem;
  }

  .error-404-description {
    font-size: 0.875rem;
    padding: 0 1rem;
  }

  .error-404-search {
    margin-bottom: 1.75rem;
    padding: 0 1rem;
  }

  .error-search-wrapper {
    flex-direction: column;
    border-radius: 20px;
    padding: 1rem;
    gap: 0.75rem;
  }

  .error-search-icon {
    position: static;
    font-size: 1.125rem;
  }

  .error-search-input {
    padding: 0.75rem 1rem;
    text-align: center;
    font-size: 0.875rem;
  }

  .error-search-btn {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
  }

  .error-404-actions {
    flex-direction: column;
    gap: 0.875rem;
    margin-bottom: 2rem;
    padding: 0 1rem;
  }

  .error-btn {
    width: 100%;
    justify-content: center;
    padding: 0.875rem 1.25rem;
    font-size: 0.875rem;
  }

  .error-btn i {
    font-size: 1.125rem;
  }

  .error-404-links {
    padding: 1.75rem 1rem 0;
  }

  .error-links-title {
    font-size: 0.875rem;
    margin-bottom: 1rem;
  }

  .error-links-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.625rem;
  }

  .error-link-item {
    padding: 0.75rem 0.5rem;
  }

  .error-link-item i {
    font-size: 1.375rem;
  }

  .error-link-item span {
    font-size: 0.8125rem;
  }

  /* Map Location Section */
  .map-location-section {
    padding: 2rem 0;
  }

  .map-location-header {
    margin-bottom: 1.5rem;
  }

  .map-location-title {
    font-size: 1.5rem;
  }

  .map-location-subtitle {
    font-size: 0.875rem;
  }

  .map-location-tabs {
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
  }

  .map-tab-btn {
    padding: 0.875rem 1rem;
    gap: 0.875rem;
    border-radius: 16px;
    width: 100%;
  }

  .map-tab-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .map-tab-icon i {
    font-size: 1.25rem;
  }

  .map-tab-title {
    font-size: 0.875rem;
  }

  .map-iframe-wrapper {
    border-radius: 18px;
    height: auto;
  }

  .map-iframe-wrapper iframe {
    height: auto;
    min-height: 280px;
  }

  .map-address-card {
    padding: 1rem;
    gap: 0.75rem;
    border-radius: 16px;
  }

  .map-address-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .map-address-icon i {
    font-size: 1.25rem;
  }

  .map-address-title {
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
  }

  .map-address-text {
    font-size: 0.6875rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .map-address-text i {
    font-size: 0.8125rem;
  }

  .map-address-link {
    font-size: 0.75rem;
    padding: 0.5rem 0.75rem;
  }

  .map-address-link i {
    font-size: 0.875rem;
  }
  
  .news-archive-content {
    padding: 1rem;
    gap: 0.75rem;
  }
  
  .news-archive-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .news-archive-title {
    font-size: 0.875rem;
  }
  
  .news-archive-excerpt {
    font-size: 0.75rem;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  
  .news-archive-link {
    font-size: 0.8125rem;
  }
  
  .news-archive-date {
    font-size: 0.6875rem;
  }
  
  .news-archive-date i {
    font-size: 0.8125rem;
  }
  
  .news-archive-category {
    font-size: 0.5625rem;
    padding: 0.1875rem 0.4375rem;
  }
  
  /* Customer Feedback Section */
  .customer-feedback-section {
    padding: 2rem 0;
  }
  
  .customer-feedback-section::before {
    opacity: 0.5;
  }
  
  .feedback-main-title {
    font-size: 1.75rem;
    letter-spacing: -0.01em;
  }
  
  .feedback-subtitle {
    font-size: 0.875rem;
  }
  
  .feedback-header {
    margin-bottom: 2rem;
  }
  
  .feedback-title-underline {
    width: 50px;
    height: 3px;
  }
  
  .feedback-card {
    padding: 1rem;
    gap: 0.875rem;
  }
  
  .feedback-card:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
  
  .feedback-card-header {
    padding-bottom: 1rem;
    gap: 0.75rem;
  }
  
  .feedback-country-flag {
    width: 32px;
    height: 32px;
  }
  
  .feedback-country-name {
    font-size: 0.8125rem;
  }
  
  /* News Detail Section */
  .news-detail-section {
    padding: 3rem 0;
  }
  
  .news-detail-article {
    padding: 1.25rem;
  }
  
  .news-detail-title {
    font-size: 1.5rem;
  }
  
  .news-detail-meta {
    gap: 0.75rem;
    flex-direction: column;
    align-items: flex-start;
  }
  
  .meta-item {
    font-size: 0.8125rem;
  }
  
  .news-detail-content p {
    font-size: 0.875rem;
  }
  
  .news-detail-tags {
    padding: 1.5rem 0;
  }
  
  .tags-title,
  .share-title {
    font-size: 0.9375rem;
  }
  
  .tags-list {
    gap: 0.5rem;
  }
  
  .news-tag {
    font-size: 0.75rem;
    padding: 0.375rem 0.875rem;
  }
  
  .share-buttons {
    gap: 0.75rem;
  }
  
  .share-btn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .news-detail-share {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
  }
  
  .news-detail-navigation {
    gap: 0.875rem;
  }
  
  .news-detail-navigation .nav-link {
    padding: 0.875rem;
    gap: 0.625rem;
  }
  
  .news-detail-navigation .nav-icon {
    width: 32px;
    height: 32px;
  }
  
  .news-detail-navigation .nav-icon i {
    font-size: 1rem;
  }
  
  .news-detail-navigation .nav-label {
    font-size: 0.75rem;
  }
  
  .news-detail-navigation .nav-title {
    font-size: 0.8125rem;
  }
  
  .news-sidebar {
    margin-top: 1.5rem;
  }
  
  .sidebar-widget {
    padding: 1.25rem;
    margin-bottom: 1rem;
  }
  
  .widget-title {
    font-size: 1rem;
  }
  
  .widget-link {
    font-size: 0.75rem;
  }
  
  .widget-link i {
    font-size: 0.75rem;
  }
  
  .widget-content {
    gap: 1rem;
  }
  
  .sidebar-item {
    gap: 0.75rem;
    padding: 0.5rem;
  }
  
  .sidebar-item-image {
    width: 56px;
    height: 56px;
  }
  
  .sidebar-item-title {
    font-size: 0.8125rem;
  }
  
  .sidebar-item-desc {
    font-size: 0.6875rem;
  }

  .feedback-rating {
    gap: 0.1875rem;
    padding: 0.5rem 0;
  }
  
  .feedback-rating i {
    font-size: 0.875rem;
  }
  
  .feedback-quote {
    font-size: 0.75rem;
    padding: 0.625rem 0 0;
  }
  
  .feedback-quote i {
    font-size: 1rem;
    margin-right: 0.25rem;
  }
 
}

/* Desktop hover effects (only on devices that support hover) */
@media (hover: hover) and (pointer: fine) {
  .nav-link:hover {
    transform: translateY(-1px);
  }
  
  .btn:hover {
    transform: translateY(-2px);
  }
  
  .mega-menu-item:hover {
    transform: translateY(-4px);
  }
}

/* High resolution displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo-img {
    image-rendering: -webkit-optimize-contrast;
  }
  
  .mega-menu-thumb img {
    image-rendering: -webkit-optimize-contrast;
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .site-header,
  .navbar,
  .nav-link,
  .logo-img,
  .mega-menu,
  .mega-menu-item,
  .mega-menu-thumb img,
  .search-input,
  .btn,
  .dropdown-toggle::after {
    transition: none !important;
  }
  
  .nav-link:hover,
  .btn:hover,
  .mega-menu-item:hover {
    transform: none !important;
  }
}

/* Landscape orientation adjustments */
@media (max-width: 991.98px) and (orientation: landscape) {
  .navbar-collapse {
    max-height: 70vh;
    overflow-y: auto;
  }
  
  .navbar-nav {
    margin-bottom: 1rem;
  }
  
  .nav-link {
    padding: 0.625rem 0;
  }

  /* Contact Info Section */
  .contact-info-section {
    padding: 2rem 0;
  }

  .contact-info-title {
    font-size: 1.5rem;
  }

  .contact-info-subtitle {
    font-size: 0.9375rem;
  }

  .contact-info-item {
    padding: 1.25rem;
    gap: 1rem;
    margin-bottom: 1rem;
  }

  .contact-icon-wrapper {
    width: 48px;
    height: 48px;
  }

  .contact-icon {
    font-size: 1.5rem;
  }

  .contact-value {
    font-size: 1rem;
  }

  .contact-hint {
    font-size: 0.8125rem;
  }

  /* 404 Error Page */
  .error-404-section {
    padding: 4rem 0;
  }

  .error-404-number {
    gap: 1.25rem;
    margin-bottom: 2rem;
  }

  .error-digit {
    font-size: 7rem;
  }

  .error-digit-middle {
    font-size: 5rem;
  }

  .error-404-title {
    font-size: 2rem;
  }

  .error-404-description {
    font-size: 1rem;
  }

  .error-search-btn {
    padding: 0.75rem 1.5rem;
  }

  .error-btn {
    padding: 0.875rem 1.75rem;
  }

  .error-links-grid {
    gap: 0.875rem;
  }
}

/* Print styles */
@media print {
  .site-header {
    position: relative;
    box-shadow: none;
  }
  
  .navbar-toggler,
  .search-form,
  .btn-cta {
    display: none;
  }
  
  .navbar-nav {
    display: none;
  }
}