/* Header 样式 */
.site-header {
    width: 100%;
    position: relative;
    z-index: 1000;
}

/* 顶部信息栏样式 - 全新设计 */
.top-bar {
    background-color: #2c3e50;
    color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
    line-height: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    height: 40px;
}

.top-bar-left, .top-bar-right {
    display: flex;
    align-items: center;
}

.welcome-text {
    font-weight: 500;
    letter-spacing: 0.2px;
}

.business-hours {
    display: flex;
    align-items: center;
    gap: 5px;
}

.business-hours i {
    color: #e74c3c;
}

.top-bar-separator {
    width: 1px;
    height: 16px;
    background-color: rgba(255, 255, 255, 0.15);
    margin: 0 10px;
}

.contact-item {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color 0.2s ease;
    font-size: 12px;
    white-space: nowrap;
}

.contact-item:hover {
    color: #fff;
}

.contact-item i {
    font-size: 11px;
    color: #3498db;
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    transition: color 0.2s ease;
    text-decoration: none;
}

.social-link:hover {
    color: #3498db;
}

.language-selector {
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}

.current-lang {
    font-weight: 500;
}

.language-selector i {
    font-size: 10px;
    transition: transform 0.2s ease;
}

.language-selector:hover i {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: #2c3e50;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    width: 100px;
    border-radius: 3px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s ease;
    z-index: 100;
    overflow: hidden;
}

.language-selector:hover .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    padding: 8px 12px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.lang-option:hover, .lang-option.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* 主导航样式 */
.header-main {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 18px 0;
    transition: all 0.3s ease;
}

/* 固定导航条样式 */
.header-main.fixed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1001;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    animation: slideDown 0.5s forwards;
}

/* 为固定导航条添加一个下滑动画 */
@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* 当导航条固定时，为body添加padding-top，防止内容跳动 */
body.has-fixed-nav {
    transition: padding-top 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
}

/* 固定导航条时的logo大小调整 */
.fixed .logo img {
    height: 45px;
}

.main-nav {
    margin-left: auto;
    margin-right: 20px;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 25px;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    padding: 5px 0;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s;
}

.nav-link:hover {
    color: #0056b3;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    padding: 10px 0;
    list-style: none;
    display: none;
    z-index: 100;
}

.nav-item.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 8px 20px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s, color 0.3s;
}

.dropdown-menu a:hover {
    background-color: #f5f5f5;
    color: #0056b3;
}

/* 头部操作按钮 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #0056b3;
    color: #0056b3;
    padding: 8px 20px;
    border-radius: 4px;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.3s, color 0.3s;
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 30px;
    height: 25px;
    position: relative;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: #333;
    border-radius: 3px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: .25s ease-in-out;
}

.mobile-menu-toggle span:nth-child(1) {
    top: 0px;
}

.mobile-menu-toggle span:nth-child(2) {
    top: 10px;
}

.mobile-menu-toggle span:nth-child(3) {
    top: 20px;
}

/* 移动端导航 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100%;
    background-color: #fff;
    z-index: 2000;
    overflow-y: auto;
    transition: right 0.3s;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #eee;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 20px;
    color: #333;
    cursor: pointer;
}

.mobile-nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav-item {
    border-bottom: 1px solid #eee;
}

.mobile-nav-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
}

.mobile-dropdown-menu {
    display: none;
    list-style: none;
    padding: 0;
    background-color: #f5f5f5;
}

.mobile-dropdown-menu.active {
    display: block;
}

.mobile-dropdown-menu li a {
    display: block;
    padding: 12px 30px;
    color: #333;
    text-decoration: none;
}

.mobile-contact-info {
    padding: 20px;
    border-top: 1px solid #eee;
}

.mobile-contact-info .info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: #666;
}

/* 移动端社交媒体链接 */
.mobile-contact-info .social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.mobile-contact-info .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: #f5f5f5;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s, color 0.3s;
}

.mobile-contact-info .social-link:hover {
    background-color: #0056b3;
    color: #fff;
}

/* 响应式设计 */
@media (max-width: 991px) {
    .top-bar-left .welcome-text,
    .top-bar-left .business-hours,
    .top-bar-right .social-links {
        display: none;
    }
    
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .header-actions .btn-outline {
        display: none;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    
    .logo img {
        height: 40px;
    }
    
    .fixed .logo img {
        height: 35px;
    }
}

/* 统计数据显示板块 */
.stats-counter {
    background-color: #0056b3;
    color: #fff;
    padding: 50px 0;
    margin: 40px 0;
}

.stats-row {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    text-align: center;
}

.stat-item {
    flex: 1;
    padding: 20px;
    min-width: 200px;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item:last-child {
    border-right: none;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
    position: relative;
    line-height: 1;
}

.plus, .percent {
    font-size: 30px;
    font-weight: 600;
    position: relative;
    top: -10px;
    margin-left: 2px;
}

.stat-title {
    font-size: 16px;
    font-weight: 500;
    opacity: 0.85;
}

/* 统计数据动画效果 */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stats-counter.animated .stat-item {
    animation: countUp 0.6s ease-out forwards;
}

.stats-counter.animated .stat-item:nth-child(1) {
    animation-delay: 0.1s;
}

.stats-counter.animated .stat-item:nth-child(2) {
    animation-delay: 0.2s;
}

.stats-counter.animated .stat-item:nth-child(3) {
    animation-delay: 0.3s;
}

.stats-counter.animated .stat-item:nth-child(4) {
    animation-delay: 0.4s;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .stats-row {
        flex-direction: column;
    }
    
    .stat-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 25px 0;
    }
    
    .stat-item:last-child {
        border-bottom: none;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .plus, .percent {
        font-size: 24px;
    }
}

/* 视频模块样式 */
.video-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.video-container {
    max-width: 1100px;
    margin: 0 auto;
}

.video-player {
    position: relative;
    width: 100%;
    max-width: 1000px;
    margin: 40px auto 0;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    border-radius: 10px;
    overflow: hidden;
}

.video-thumbnail {
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.video-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

.video-thumbnail:hover {
    transform: scale(1.01);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.play-button i {
    color: #fff;
    font-size: 36px;
}

.video-thumbnail:hover .play-button {
    background-color: rgba(0, 86, 179, 0.9);
    transform: translate(-50%, -50%) scale(1.1);
}

.video-iframe {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 比例 */
}

.video-iframe iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .video-container {
        max-width: 100%;
        padding: 0 15px;
    }
    
    .video-player {
        max-width: 100%;
    }
    
    .play-button {
        width: 70px;
        height: 70px;
    }
    
    .play-button i {
        font-size: 28px;
    }
}

/* 应用场景板块样式 */
.applications-section *,
.applications-section *::before,
.applications-section *::after {
    box-sizing: border-box; /* Apply universally within this section */
}

.applications-section {
    background-color: #1a4b8b;
    color: #fff;
    padding: 80px 0;
    position: relative;
}

.applications-section .section-header.light h2,
.applications-section .section-header.light p {
    color: #fff;
}

.applications-section .section-header.light h2:after {
    background-color: #fff;
}

.applications-slider {
    display: flex;
    overflow-x: hidden;
    margin: 0 -15px;
    position: relative;
    box-sizing: border-box;
}

/* New styles for the inner wrapper */
.applications-slider-inner {
    display: flex;
    flex-wrap: nowrap;
    transition: transform 0.3s ease;
    box-sizing: border-box;
}

.application-card {
    margin: 0 15px;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    min-width: 300px;
    box-sizing: border-box;
}

.application-card:hover {
    transform: translateY(-10px);
}

.application-image {
    height: 200px;
    overflow: hidden;
}

.application-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.application-card:hover .application-image img {
    transform: scale(1.05);
}

.application-content {
    padding: 25px;
    color: #333;
}

.application-content h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1a4b8b;
}

.application-content p {
    font-size: 15px;
    margin-bottom: 20px;
    line-height: 1.6;
}

.read-more {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    font-weight: 600;
    color: #1a4b8b;
    text-decoration: none;
    transition: color 0.3s ease;
}

.read-more i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.read-more:hover {
    color: #ff5722;
}

.read-more:hover i {
    transform: translateX(5px);
}

.slider-controls {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    gap: 15px;
}

.prev-btn, 
.next-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.prev-btn:hover, 
.next-btn:hover {
    background-color: #fff;
    color: #1a4b8b;
}

@media (max-width: 992px) {
    .application-card {
        flex: 0 0 calc(50% - 30px);
    }
}

@media (max-width: 768px) {
    .applications-slider {
        /* Enable native scrolling */
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; 
    }

    /* Hide controls via CSS on mobile */
    .applications-section .slider-controls { 
        display: none; 
    }
    
    .applications-slider::-webkit-scrollbar {
        display: none;
    }
    
    .applications-slider-inner {
        transition: none;
    }
    
    .application-card {
        flex: 0 0 calc(100% - 30px);
        scroll-snap-align: start;
    }
}

/* Product Detail Page Styles */
.page-banner {
    background-size: cover;
    background-position: center;
    background-color: #2c3e50;
    color: #fff;
    padding: 60px 0;
    position: relative;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 62, 80, 0.7);
}

.page-banner .container {
    position: relative;
    z-index: 1;
}

.page-banner h1 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumb a:hover {
    color: #3498db;
}

.breadcrumb span {
    color: #3498db;
}

/* Product Detail Layout */
.product-detail-section {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.product-detail-layout {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
}

.product-gallery {
    flex: 0 0 45%;
}

.main-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    background-color: #fff;
    margin-bottom: 15px;
}

.main-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.main-image:hover img {
    transform: scale(1.02);
}

.thumbnail-gallery {
    display: flex;
    gap: 10px;
}

.thumbnail {
    flex: 0 0 calc(25% - 8px);
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

.thumbnail.active {
    border-color: #3498db;
}

.product-info {
    flex: 1;
}

.product-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2c3e50;
}

.product-description {
    margin-bottom: 20px;
    color: #555;
    line-height: 1.6;
}

.key-features {
    margin-bottom: 30px;
}

.key-features h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2c3e50;
}

.key-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.key-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.key-features li i {
    color: #3498db;
    font-size: 16px;
    margin-top: 3px;
}

.product-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.product-actions .btn {
    min-width: 180px;
}

/* Product Tabs */
.product-tabs {
    margin-bottom: 60px;
}

.tab-controls {
    display: flex;
    border-bottom: 1px solid #ddd;
    margin-bottom: 25px;
}

.tab-btn {
    padding: 12px 20px;
    border: none;
    background: none;
    font-size: 16px;
    font-weight: 500;
    color: #555;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.tab-btn:after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: #3498db;
    transition: width 0.3s ease;
}

.tab-btn.active {
    color: #3498db;
}

.tab-btn.active:after {
    width: 100%;
}

.tab-btn:hover {
    color: #3498db;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Specifications Tab */
.specs-table {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.specs-table table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table th, .specs-table td {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.specs-table th {
    width: 40%;
    font-weight: 600;
    color: #2c3e50;
    background-color: rgba(52, 152, 219, 0.05);
}

.specs-table tr:last-child th,
.specs-table tr:last-child td {
    border-bottom: none;
}

/* Applications Tab */
.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.application-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.application-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.application-item .icon {
    flex: 0 0 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(52, 152, 219, 0.1);
    border-radius: 50%;
    color: #3498db;
    font-size: 16px;
}

.application-item .text {
    flex: 1;
}

.application-item h4 {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
}

.application-item p {
    margin: 0;
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

/* Installation Guide Tab */
.installation-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step {
    display: flex;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.step-number {
    flex: 0 0 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #3498db;
    color: #fff;
    font-size: 20px;
    font-weight: 600;
}

.step-content {
    flex: 1;
    padding: 20px;
}

.step-content h4 {
    margin: 0 0 10px;
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
}

.step-content p {
    margin: 0;
    color: #666;
    line-height: 1.5;
}

.installation-notice {
    margin-top: 30px;
    padding: 15px;
    background-color: rgba(243, 156, 18, 0.1);
    border-left: 4px solid #f39c12;
    border-radius: 0 4px 4px 0;
}

.installation-notice p {
    margin: 0;
    color: #666;
    line-height: 1.5;
}

.installation-notice strong {
    color: #f39c12;
}

/* Related Products Section */
.related-products-section {
    padding: 60px 0;
    background-color: #fff;
}

.section-title {
    font-size: 28px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
}

.section-title:after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background-color: #3498db;
    margin: 15px auto 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.product-image {
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-card .product-info {
    padding: 20px;
    text-align: center;
}

.product-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #2c3e50;
    transition: color 0.3s ease;
}

.product-card:hover h3 {
    color: #3498db;
}

.product-card p {
    margin-bottom: 15px;
    color: #666;
    line-height: 1.5;
}

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

/* Inquiry Section */
.inquiry-section {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.inquiry-container {
    display: flex;
    gap: 30px;
}

.inquiry-content {
    flex: 1;
    background-color: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.inquiry-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
}

.inquiry-form {
    margin-top: 25px;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #3498db;
    outline: none;
}

.captcha-row {
    align-items: center;
}

.captcha-row .form-group {
    flex: 0 0 60%;
}

.captcha-img {
    flex: 0 0 40%;
    background-color: #f4f4f4;
    border-radius: 4px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 5px;
    color: #2c3e50;
}

.inquiry-contact {
    flex: 0 0 350px;
    background-color: #2c3e50;
    border-radius: 8px;
    padding: 30px;
    color: #fff;
}

.inquiry-contact h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 25px;
    color: #fff;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-item i {
    flex: 0 0 30px;
    font-size: 20px;
    color: #3498db;
}

.contact-text {
    flex: 1;
}

.contact-text span {
    display: block;
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.contact-text a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-text a:hover {
    color: #3498db;
}

/* Download Section */
.download-section {
    padding: 60px 0;
    background-color: #fff;
}

.download-container {
    background-color: #2c3e50;
    border-radius: 8px;
    padding: 40px;
    color: #fff;
    text-align: center;
}

.download-content h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
}

.download-content p {
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto 25px;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.download-buttons .btn {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
}

.download-buttons .btn:hover {
    background-color: #3498db;
    border-color: #3498db;
}

.download-buttons .btn i {
    margin-right: 8px;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .product-detail-layout {
        flex-direction: column;
    }
    
    .inquiry-container {
        flex-direction: column;
    }
    
    .inquiry-contact {
        flex: 0 0 auto;
    }
}

@media (max-width: 768px) {
    .page-banner {
        padding: 40px 0;
    }
    
    .page-banner h1 {
        font-size: 28px;
    }
    
    .product-title {
        font-size: 24px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .captcha-row {
        flex-direction: row;
        gap: 20px;
    }
    
    .tab-controls {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 1 0 auto;
        text-align: center;
        padding: 10px;
        font-size: 14px;
    }
    
    .specs-table th, .specs-table td {
        padding: 10px 15px;
        font-size: 14px;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .installation-steps {
        gap: 15px;
    }
    
    .step-number {
        flex: 0 0 50px;
        font-size: 18px;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 20px;
    }
}