/* إعدادات أساسية */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: Arial, sans-serif;
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }

        /* قاعدة أمان للصور لمنع تأثير الأبعاد على التصميم */
        img {
            max-width: 100%;
            height: auto !important;
        }

        /* زر العودة للرئيسية */
        .back-to-home {
            position: fixed;
            top: 60px;
            right: 20px;
            background-color: #3498db;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            text-decoration: none;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            z-index: 1001;
            transition: all 0.3s ease;
        }

        .back-to-home:hover {
            background-color: #2980b9;
            transform: scale(1.1);
        }

        /* شريط التنقل */
        .main-nav {
            background-color: #2c3e50;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 999;
        }

        .main-nav ul {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
        }

        .main-nav a {
            color: white;
            text-decoration: none;
            padding: 8px 15px;
            border-radius: 4px;
            transition: background-color 0.3s ease;
        }

        .main-nav a:hover {
            background-color: #3498db;
        }

        /* رأس الصفحة */
        .header-image {
            width: 100%;
            height: auto;
            display: block;
        }

        /* العناوين الرئيسية */
        h1,
        h2,
        h3 {
            color: #2c3e50;
            margin: 20px 0;
            text-align: center;
        }

        h1 {
            font-size: 2.5rem;
            padding: 20px;
            background-color: #ecf0f1;
        }

        h2 {
            font-size: 2rem;
            border-bottom: 2px solid #3498db;
            padding-bottom: 10px;
            margin-top: 40px;
        }

        h3 {
            font-size: 1.5rem;
            color: #2980b9;
            margin: 15px 0;
        }

        /* قسم المقالات (المحتوى الجديد) */
        .articles-section {
            padding: 40px 20px;
            background-color: white;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .article-box {
            background-color: #f8f9fa;
            border-right: 4px solid #3498db;
            padding: 25px;
            margin: 30px 0;
            border-radius: 4px;
            box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
        }

        .article-title {
            color: #2c3e50;
            font-size: 1.8rem;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #3498db;
        }

        .article-subtitle {
            color: #3498db;
            font-size: 1.3rem;
            margin: 15px 0 10px 0;
        }

        .article-date {
            color: #7f8c8d;
            font-size: 0.9rem;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-date i {
            color: #3498db;
        }

        .article-content {
            font-size: 1.1rem;
            line-height: 1.8;
            color: #333;
            text-align: justify;
            margin-bottom: 20px;
        }

        .article-highlight {
            background-color: #ecf0f1;
            padding: 15px;
            border-right: 4px solid #2ecc71;
            margin: 15px 0;
            border-radius: 4px;
            font-style: italic;
        }

        .article-image {
            width: 100%;
            height: 300px;
            object-fit: cover;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        /* جدول التنقل الداخلي */
        .page-navigation {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            margin: 20px 0;
            position: sticky;
            top: 80px;
            z-index: 998;
        }

        .nav-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .nav-links a {
            background: #3498db;
            color: white;
            padding: 8px 15px;
            border-radius: 4px;
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 14px;
        }

        .nav-links a:hover {
            background: #2980b9;
            transform: translateY(-2px);
        }

        /* معرض الصور */
        .gallery-section {
            padding: 40px 20px;
            background-color: white;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }

        .gallery-item {
            background-color: #f9f9f9;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
            position: relative;
        }

        .gallery-item:hover {
            transform: translateY(-5px);
        }

        .gallery-item img {
            width: 100%;
            height: 250px;
            object-fit: cover;
            display: block;
        }

        /* الأيقونات الصغيرة في الزاوية */
        .image-icons {
            position: absolute;
            top: 10px;
            left: 10px;
            display: flex;
            gap: 8px;
            z-index: 2;
        }

        .icon-btn {
            background-color: rgba(255, 255, 255, 0.9);
            color: #333;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        }

        .icon-btn:hover {
            background-color: white;
            transform: scale(1.1);
        }

        .icon-btn.phone {
            color: #3498db;
        }

        .icon-btn.whatsapp {
            color: #25D366;
        }

        .image-title {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background-color: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 14px;
            max-width: 80%;
        }

        /* شريط أدوات التطوير */
        .dev-tools-bar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background-color: #202124;
            color: white;
            padding: 8px 15px;
            font-size: 12px;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 9999;
            border-bottom: 1px solid #3c4043;
        }

        .dev-tools-left,
        .dev-tools-center,
        .dev-tools-right {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .dev-select {
            background-color: #3c4043;
            color: white;
            border: 1px solid #5f6368;
            padding: 2px 5px;
            border-radius: 3px;
            font-size: 11px;
        }

        .dev-tab {
            color: #9aa0a6;
            font-size: 11px;
        }

        .dev-active-tab {
            color: white;
            border-bottom: 2px solid #8ab4f8;
            padding-bottom: 2px;
        }

        .dev-switch {
            color: #8ab4f8;
            font-size: 11px;
            cursor: pointer;
        }

        /* التذييل */
        footer {
            background-color: #1a252f;
            color: white;
            padding: 40px 20px;
            text-align: center;
            margin-top: 40px;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #95a5a6;
        }

        /* زر الاتصال العائم */
        .floating-phone {
            position: fixed;
            bottom: 30px;
            left: 30px;
            background-color: #2ecc71;
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .floating-phone:hover {
            background-color: #27ae60;
            transform: scale(1.1);
        }

        /* مساحة المحتوى الرئيسي */
        .main-content {
            margin-top: 40px;
        }

        /* وسائط الاستجابة */
        @media (max-width: 768px) {
            .main-nav ul {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }

            .back-to-home {
                top: 50px;
                right: 15px;
                width: 45px;
                height: 45px;
                font-size: 18px;
            }

            .gallery-grid {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            }

            h1 {
                font-size: 2rem;
            }

            h2 {
                font-size: 1.5rem;
            }

            h3 {
                font-size: 1.2rem;
            }

            .dev-tools-bar {
                flex-direction: column;
                height: auto;
                padding: 5px;
            }

            .dev-tools-left,
            .dev-tools-center,
            .dev-tools-right {
                flex-wrap: wrap;
                justify-content: center;
                gap: 8px;
            }

            .icon-btn {
                width: 35px;
                height: 35px;
                font-size: 16px;
            }

            .article-title {
                font-size: 1.5rem;
            }

            .article-subtitle {
                font-size: 1.1rem;
            }

            .nav-links {
                flex-direction: column;
                align-items: center;
            }

            .nav-links a {
                width: 100%;
                text-align: center;
            }

            .page-navigation {
                position: static;
            }
        }

        @media (max-width: 480px) {
            .gallery-grid {
                grid-template-columns: 1fr;
            }

            .gallery-item img {
                height: 200px;
            }

            .image-title {
                font-size: 12px;
                padding: 6px 10px;
            }

            .article-title {
                font-size: 1.3rem;
            }

            .article-content {
                font-size: 1rem;
            }
        }

        /* إضافة أنماط CSS داخل الوسم style */
        .type-card:hover {
            transform: translateY(-10px);
        }

        .shape-item:hover {
            background-color: #edf2f7 !important;
            transform: translateX(-5px);
        }

        .related-link a:hover {
            background-color: rgba(255, 255, 255, 0.25) !important;
            transform: scale(1.05);
        }

        @media (max-width: 768px) {
            .types-grid {
                grid-template-columns: 1fr !important;
            }

            .shapes-grid {
                grid-template-columns: 1fr !important;
            }
        }

        @media (max-width: 480px) {
            .type-card {
                padding: 20px !important;
            }

            .shape-item {
                flex-direction: column;
                text-align: center;
                padding: 20px !important;
            }

            .shape-icon {
                margin-left: 0 !important;
                margin-bottom: 15px;
            }
        }

        /* إضافة أنماط CSS داخل الوسم style للتجاوبية */
        .material-content,
        .installation-steps,
        .table-row {
            display: flex;
            flex-wrap: wrap;
        }

        .feature-item:hover,
        .step-card:hover {
            transform: translateY(-5px);
            transition: transform 0.3s ease;
        }

        .contact-cta a:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(52, 152, 219, 0.4);
        }

        /* تجاوبية للشاشات الصغيرة */
        @media (max-width: 768px) {
            .section-header {
                flex-direction: column;
                text-align: center;
            }

            .header-icon {
                margin-left: 0 !important;
                margin-bottom: 15px;
            }

            .material-content {
                flex-direction: column;
            }

            .material-text,
            .material-image {
                min-width: 100% !important;
            }

            .table-row {
                flex-direction: column;
            }

            .table-cell {
                min-width: 100% !important;
                border-bottom: 1px solid #eee;
                padding: 12px !important;
            }

            .table-cell:last-child {
                border-bottom: none;
            }

            .table-header .table-cell {
                border-bottom: 1px solid #4a627a;
            }

            .step-card {
                min-width: 100% !important;
                max-width: 100% !important;
            }

            .contact-cta a {
                flex-direction: column;
                padding: 12px 20px !important;
                font-size: 1rem !important;
            }

            .contact-cta i {
                margin-bottom: 8px;
            }
        }

        @media (max-width: 480px) {
            .lexan-details-section {
                padding: 30px 15px !important;
            }

            h2 {
                font-size: 1.6rem !important;
            }

            h3 {
                font-size: 1.3rem !important;
            }

            .feature-item {
                flex-direction: column;
                align-items: center !important;
                text-align: center;
            }

            .feature-icon {
                margin-left: 0 !important;
                margin-bottom: 10px;
            }

            .material-image div {
                padding: 20px !important;
            }

            .material-image i {
                font-size: 60px !important;
            }

            .step-card {
                padding: 20px !important;
            }

            .company-commitment {
                padding: 20px 15px !important;
            }

            .price-note {
                padding: 15px !important;
            }
        }

        /* تجاوبية للشاشات المتوسطة */
        @media (min-width: 769px) and (max-width: 1024px) {
            .step-card {
                min-width: calc(50% - 20px) !important;
                max-width: calc(50% - 20px) !important;
            }

            .table-cell {
                min-width: 120px !important;
            }
        }

        /* زر شجرة التنقل تحت زر الرئيسية */
        .nav-tree-btn {
            position: fixed;
            top: 120px;
            /* تحت زر الرئيسية */
            right: 20px;
            /* نفس مكان زر الرئيسية */
            background-color: #e74c3c;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            z-index: 1001;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .nav-tree-btn:hover {
            background-color: #c0392b;
            transform: scale(1.1);
        }

        /* شجرة التنقل */
        #navTree {
            display: none;
            position: fixed;
            top: 180px;
            /* تحت زر الشجرة */
            right: 20px;
            /* نفس مكان زر الشجرة */
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            padding: 20px;
            z-index: 1002;
            width: 300px;
            max-height: 400px;
            overflow-y: auto;
            direction: rtl;
        }

        #navTree.active {
            display: block;
        }

        #navTree h3 {
            color: #2c3e50;
            margin-bottom: 15px;
            border-bottom: 2px solid #3498db;
            padding-bottom: 10px;
            text-align: center;
        }

        #navTree ul {
            list-style: none;
            padding: 0;
        }

        #navTree li {
            margin-bottom: 10px;
        }

        #navTree a {
            color: #3498db;
            text-decoration: none;
            display: flex;
            align-items: center;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s;
            font-weight: bold;
        }

        #navTree a:hover {
            background-color: #f0f7ff;
            transform: translateX(-5px);
        }

        #navTree a i {
            margin-left: 10px;
            color: #3498db;
        }

        /* تجاوبية */
        @media (max-width: 768px) {
            .nav-tree-btn {
                top: 105px;
                right: 15px;
                width: 45px;
                height: 45px;
                font-size: 18px;
            }

            #navTree {
                top: 160px;
                right: 15px;
                width: 280px;
            }
        }

        @media (max-width: 480px) {
            #navTree {
                width: 90%;
                right: 5%;
                left: 5%;
            }
        }

        /* أنيميشن للخلفية المتغيرة */
        @keyframes slideChange {
            0% {
                opacity: 0;
            }

            33% {
                opacity: 0.15;
            }

            66% {
                opacity: 0;
            }

            100% {
                opacity: 0;
            }
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: Arial, sans-serif;
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }

        /* قاعدة أمان للصور لمنع تأثير الأبعاد على التصميم */
        img {
            max-width: 100%;
            height: auto !important;
        }

        /* زر العودة للرئيسية */
        .back-to-home {
            position: fixed;
            top: 60px;
            right: 20px;
            background-color: #3498db;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            text-decoration: none;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            z-index: 1001;
            transition: all 0.3s ease;
        }

        .back-to-home:hover {
            background-color: #2980b9;
            transform: scale(1.1);
        }

        /* شريط التنقل */
        .main-nav {
            background-color: #2c3e50;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 999;
        }

        .main-nav ul {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
        }

        .main-nav a {
            color: white;
            text-decoration: none;
            padding: 8px 15px;
            border-radius: 4px;
            transition: background-color 0.3s ease;
        }

        .main-nav a:hover {
            background-color: #3498db;
        }

        /* رأس الصفحة */
        .header-image {
            width: 100%;
            height: auto;
            display: block;
        }

        /* العناوين الرئيسية */
        h1,
        h2,
        h3 {
            color: #2c3e50;
            margin: 20px 0;
            text-align: center;
        }

        h1 {
            font-size: 2.5rem;
            padding: 20px;
            background-color: #ecf0f1;
        }

        h2 {
            font-size: 2rem;
            border-bottom: 2px solid #3498db;
            padding-bottom: 10px;
            margin-top: 40px;
        }

        h3 {
            font-size: 1.5rem;
            color: #2980b9;
            margin: 15px 0;
        }

        /* قسم المقالات (المحتوى الجديد) */
        .articles-section {
            padding: 40px 20px;
            background-color: white;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .article-box {
            background-color: #f8f9fa;
            border-right: 4px solid #3498db;
            padding: 25px;
            margin: 30px 0;
            border-radius: 4px;
            box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
        }

        .article-title {
            color: #2c3e50;
            font-size: 1.8rem;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #3498db;
        }

        .article-subtitle {
            color: #3498db;
            font-size: 1.3rem;
            margin: 15px 0 10px 0;
        }

        .article-date {
            color: #7f8c8d;
            font-size: 0.9rem;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-date i {
            color: #3498db;
        }

        .article-content {
            font-size: 1.1rem;
            line-height: 1.8;
            color: #333;
            text-align: justify;
            margin-bottom: 20px;
        }

        .article-highlight {
            background-color: #ecf0f1;
            padding: 15px;
            border-right: 4px solid #2ecc71;
            margin: 15px 0;
            border-radius: 4px;
            font-style: italic;
        }

        .article-image {
            width: 100%;
            height: 300px;
            object-fit: cover;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        /* جدول التنقل الداخلي */
        .page-navigation {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            margin: 20px 0;
            position: sticky;
            top: 80px;
            z-index: 998;
        }

        .nav-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .nav-links a {
            background: #3498db;
            color: white;
            padding: 8px 15px;
            border-radius: 4px;
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 14px;
        }

        .nav-links a:hover {
            background: #2980b9;
            transform: translateY(-2px);
        }

        /* معرض الصور */
        .gallery-section {
            padding: 40px 20px;
            background-color: white;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }

        .gallery-item {
            background-color: #f9f9f9;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
            position: relative;
        }

        .gallery-item:hover {
            transform: translateY(-5px);
        }

        .gallery-item img {
            width: 100%;
            height: 250px;
            object-fit: cover;
            display: block;
        }

        /* الأيقونات الصغيرة في الزاوية */
        .image-icons {
            position: absolute;
            top: 10px;
            left: 10px;
            display: flex;
            gap: 8px;
            z-index: 2;
        }

        .icon-btn {
            background-color: rgba(255, 255, 255, 0.9);
            color: #333;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        }

        .icon-btn:hover {
            background-color: white;
            transform: scale(1.1);
        }

        .icon-btn.phone {
            color: #3498db;
        }

        .icon-btn.whatsapp {
            color: #25D366;
        }

        .image-title {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background-color: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 14px;
            max-width: 80%;
        }

        /* شريط أدوات التطوير -->
<!-- حذف شريط أدوات التطوير لإخفائه -->

        /* التذييل */
        footer {
            background-color: #1a252f;
            color: white;
            padding: 40px 20px;
            text-align: center;
            margin-top: 40px;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #95a5a6;
        }

        /* زر الاتصال العائم */
        .floating-phone {
            position: fixed;
            bottom: 30px;
            left: 30px;
            background-color: #2ecc71;
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .floating-phone:hover {
            background-color: #27ae60;
            transform: scale(1.1);
        }

        /* مساحة المحتوى الرئيسي */
        .main-content {
            margin-top: 40px;
        }

        /* وسائط الاستجابة */
        @media (max-width: 768px) {
            .main-nav ul {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }

            .back-to-home {
                top: 50px;
                right: 15px;
                width: 45px;
                height: 45px;
                font-size: 18px;
            }

            .gallery-grid {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            }

            h1 {
                font-size: 2rem;
            }

            h2 {
                font-size: 1.5rem;
            }

            h3 {
                font-size: 1.2rem;
            }

            .dev-tools-bar {
                flex-direction: column;
                height: auto;
                padding: 5px;
            }

            .dev-tools-left,
            .dev-tools-center,
            .dev-tools-right {
                flex-wrap: wrap;
                justify-content: center;
                gap: 8px;
            }

            .icon-btn {
                width: 35px;
                height: 35px;
                font-size: 16px;
            }

            .article-title {
                font-size: 1.5rem;
            }

            .article-subtitle {
                font-size: 1.1rem;
            }

            .nav-links {
                flex-direction: column;
                align-items: center;
            }

            .nav-links a {
                width: 100%;
                text-align: center;
            }

            .page-navigation {
                position: static;
            }
        }

        @media (max-width: 480px) {
            .gallery-grid {
                grid-template-columns: 1fr;
            }

            .gallery-item img {
                height: 200px;
            }

            .image-title {
                font-size: 12px;
                padding: 6px 10px;
            }

            .article-title {
                font-size: 1.3rem;
            }

            .article-content {
                font-size: 1rem;
            }
        }

        /* إضافة أنماط CSS داخل الوسم style */
        .type-card:hover {
            transform: translateY(-10px);
        }

        .shape-item:hover {
            background-color: #edf2f7 !important;
            transform: translateX(-5px);
        }

        .related-link a:hover {
            background-color: rgba(255, 255, 255, 0.25) !important;
            transform: scale(1.05);
        }

        @media (max-width: 768px) {
            .types-grid {
                grid-template-columns: 1fr !important;
            }

            .shapes-grid {
                grid-template-columns: 1fr !important;
            }
        }

        @media (max-width: 480px) {
            .type-card {
                padding: 20px !important;
            }

            .shape-item {
                flex-direction: column;
                text-align: center;
                padding: 20px !important;
            }

            .shape-icon {
                margin-left: 0 !important;
                margin-bottom: 15px;
            }
        }

        /* إضافة أنماط CSS داخل الوسم style للتجاوبية */
        .material-content,
        .installation-steps,
        .table-row {
            display: flex;
            flex-wrap: wrap;
        }

        .feature-item:hover,
        .step-card:hover {
            transform: translateY(-5px);
            transition: transform 0.3s ease;
        }

        .contact-cta a:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(52, 152, 219, 0.4);
        }

        /* تجاوبية للشاشات الصغيرة */
        @media (max-width: 768px) {
            .section-header {
                flex-direction: column;
                text-align: center;
            }

            .header-icon {
                margin-left: 0 !important;
                margin-bottom: 15px;
            }

            .material-content {
                flex-direction: column;
            }

            .material-text,
            .material-image {
                min-width: 100% !important;
            }

            .table-row {
                flex-direction: column;
            }

            .table-cell {
                min-width: 100% !important;
                border-bottom: 1px solid #eee;
                padding: 12px !important;
            }

            .table-cell:last-child {
                border-bottom: none;
            }

            .table-header .table-cell {
                border-bottom: 1px solid #4a627a;
            }

            .step-card {
                min-width: 100% !important;
                max-width: 100% !important;
            }

            .contact-cta a {
                flex-direction: column;
                padding: 12px 20px !important;
                font-size: 1rem !important;
            }

            .contact-cta i {
                margin-bottom: 8px;
            }
        }

        @media (max-width: 480px) {
            .lexan-details-section {
                padding: 30px 15px !important;
            }

            h2 {
                font-size: 1.6rem !important;
            }

            h3 {
                font-size: 1.3rem !important;
            }

            .feature-item {
                flex-direction: column;
                align-items: center !important;
                text-align: center;
            }

            .feature-icon {
                margin-left: 0 !important;
                margin-bottom: 10px;
            }

            .material-image div {
                padding: 20px !important;
            }

            .material-image i {
                font-size: 60px !important;
            }

            .step-card {
                padding: 20px !important;
            }

            .company-commitment {
                padding: 20px 15px !important;
            }

            .price-note {
                padding: 15px !important;
            }
        }

        /* تجاوبية للشاشات المتوسطة */
        @media (min-width: 769px) and (max-width: 1024px) {
            .step-card {
                min-width: calc(50% - 20px) !important;
                max-width: calc(50% - 20px) !important;
            }

            .table-cell {
                min-width: 120px !important;
            }
        }

        /* زر شجرة التنقل تحت زر الرئيسية */
        .nav-tree-btn {
            position: fixed;
            top: 120px;
            /* تحت زر الرئيسية */
            right: 20px;
            /* نفس مكان زر الرئيسية */
            background-color: #e74c3c;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            z-index: 1001;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .nav-tree-btn:hover {
            background-color: #c0392b;
            transform: scale(1.1);
        }

        /* شجرة التنقل */
        #navTree {
            display: none;
            position: fixed;
            top: 180px;
            /* تحت زر الشجرة */
            right: 20px;
            /* نفس مكان زر الشجرة */
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            padding: 20px;
            z-index: 1002;
            width: 300px;
            max-height: 400px;
            overflow-y: auto;
            direction: rtl;
        }

        #navTree.active {
            display: block;
        }

        #navTree h3 {
            color: #2c3e50;
            margin-bottom: 15px;
            border-bottom: 2px solid #3498db;
            padding-bottom: 10px;
            text-align: center;
        }

        #navTree ul {
            list-style: none;
            padding: 0;
        }

        #navTree li {
            margin-bottom: 10px;
        }

        #navTree a {
            color: #3498db;
            text-decoration: none;
            display: flex;
            align-items: center;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s;
            font-weight: bold;
        }

        #navTree a:hover {
            background-color: #f0f7ff;
            transform: translateX(-5px);
        }

        #navTree a i {
            margin-left: 10px;
            color: #3498db;
        }

        /* تجاوبية */
        @media (max-width: 768px) {
            .nav-tree-btn {
                top: 105px;
                right: 15px;
                width: 45px;
                height: 45px;
                font-size: 18px;
            }

            #navTree {
                top: 160px;
                right: 15px;
                width: 280px;
            }
        }

        @media (max-width: 480px) {
            #navTree {
                width: 90%;
                right: 5%;
                left: 5%;
            }
        }

        /* أنيميشن للخلفية المتغيرة */
        @keyframes slideChange {
            0% {
                opacity: 0;
            }

            33% {
                opacity: 0.15;
            }

            66% {
                opacity: 0;
            }

            100% {
                opacity: 0;
            }
        }















    
    
        .related-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
        }

        .related-item:hover .related-image img {
            transform: scale(1.05);
        }

        .read-more-btn:hover {
            background: #2980b9 !important;
            transform: translateX(-5px);
        }

        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr;
            }

            .related-image {
                height: 220px !important;
            }
        }

        @media (max-width: 480px) {
            .related-image {
                height: 200px !important;
            }

            .related-content {
                padding: 20px !important;
            }
        }








        @keyframes pulse-whatsapp {
            0% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
            }

            70% {
                box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
            }

            100% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
            }
        }