:root {
            --primary-color: #1a73e8;
            --secondary-color: #0d47a1;
            --accent-color: #4fc3f7;
            --light-color: #f8f9fa;
            --dark-color: #1a237e;
            --gradient-start: #1a73e8;
            --gradient-end: #0d47a1;
            --glass-bg: rgba(255, 255, 255, 0.1);
            --glass-border: rgba(255, 255, 255, 0.2);
        }
 .about-hero {
    /* background: linear-gradient(135deg, 
        rgba(26, 115, 232, 0.85) 0%, 
        rgba(13, 71, 161, 0.8) 50%,
        rgba(26, 115, 232, 0.7) 100%),
        url('https://images.unsplash.com/photo-1588776814546-1ffcf47267a5?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1167&q=80'); */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" preserveAspectRatio="none"><path fill="rgba(255,255,255,0.05)" d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" opacity=".25" class="shape-fill"></path></svg>');
    background-size: cover;
    animation: float 6s ease-in-out infinite;
}

.about-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(transparent, rgba(255, 255, 255, 0.1));
    clip-path: polygon(0 100%, 100% 100%, 100% 0, 0 100%);
}

.about-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.about-hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 25px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    background: linear-gradient(45deg, #ffffff, #e3f2fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

.about-hero h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    right: 50%;
    transform: translateX(50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(45deg, var(--accent-color), #ffffff);
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(0, 229, 255, 0.5);
}

.about-hero p {
    font-size: 1.3rem;
    line-height: 1.8;
    margin: 0 auto 35px;
    max-width: 600px;
    opacity: 0.95;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
    font-weight: 400;
}
/* Breadcrumb بهبود یافته */
.breadcrumb {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    border-radius: 50px;
    padding: 12px 30px;
    display: inline-flex;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.breadcrumb::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.breadcrumb:hover::before {
    transform: translateX(100%);
}

.breadcrumb-item a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
}

.breadcrumb-item a:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.breadcrumb-item.active {
    color: var(--accent-color);
    font-weight: 600;
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255, 255, 255, 0.6);
    font-weight: bold;
    margin: 0 15px;
}
.breadcrumb-item+.breadcrumb-item::before {
    float: right;
    padding-right: var(--bs-breadcrumb-item-padding-x);
}

   
        /* بخش اصلی */
        .blog-main {
            padding: 5rem 0;
        }
        
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 3rem;
            position: relative;
            padding-bottom: 1rem;
            color: var(--dark-color);
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            right: 0;
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
            border-radius: 2px;
        }
        
        /* کارت مقالات */
        .article-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            /* box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08); */
            transition: all 0.3s ease;
            margin-bottom: 2rem;
            height: 100%;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .article-card:hover {
            transform: translateY(-10px);
            /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15); */
        }
        
        .article-image {
            height: 220px;
            background: linear-gradient(135deg, #e2e8f0, #cbd5e0);
            position: relative;
            overflow: hidden;
        }
        
        .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .article-card:hover .article-image img {
            transform: scale(1.05);
        }
        
        .article-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--primary-color);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
        }
        
        .article-content {
            padding: 2rem;
        }
        
        .article-category {
            color: var(--primary-color);
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            display: block;
        }
        
        .article-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.4;
            color: var(--dark-color);
            height: 100px;
            overflow: hidden;
        }
        
        .article-excerpt {
            color: #666;
            margin-bottom: 1.5rem;
            line-height: 1.7;
            height: 195px;
            overflow: hidden;
        }
        
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1rem;
            border-top: 1px solid #e2e8f0;
        }
        
        .article-author {
            display: flex;
            align-items: center;
        }
        
        .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-color);
            margin-left: 0.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
        }
        
        .author-name {
            font-weight: 600;
            color: #333;
        }
        
        .article-date {
            color: #666;
            font-size: 0.9rem;
        }
        
        /* سایدبار */
        .sidebar {
            background: white;
            border-radius: 20px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            margin-bottom: 2rem;
        }
        
        .sidebar-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid #e2e8f0;
            color: var(--dark-color);
        }
        
        /* جستجو در سایدبار */
        .search-sidebar {
            position: relative;
            margin-bottom: 2rem;
        }
        
        .search-sidebar-input {
            border: 2px solid #e2e8f0;
            border-radius: 50px;
            padding: 1rem 3rem 1rem 1.5rem;
            font-size: 1rem;
            width: 100%;
            transition: all 0.3s ease;
        }
        
        .search-sidebar-input:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
        }
        
        .search-sidebar-btn {
            position: absolute;
            left: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary-color);
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }
        
        .search-sidebar-btn:hover {
            background: var(--secondary-color);
        }
        
        .categories-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .categories-list li {
            margin-bottom: 0.8rem;
        }
        
        .categories-list a {
            display: flex;
            justify-content: space-between;
            color: #666;
            text-decoration: none;
            padding: 0.8rem 0;
            border-bottom: 1px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        
        .categories-list a:hover {
            color: var(--primary-color);
            padding-right: 0.5rem;
        }
        
        .categories-list .count {
            background: var(--light-color);
            color: #333;
            padding: 0.2rem 0.6rem;
            border-radius: 20px;
            font-size: 0.8rem;
        }
        
        .popular-articles {
            margin-top: 2rem;
        }
        
        .popular-article {
            display: flex;
            margin-bottom: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .popular-article:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        
        .popular-image {
            width: 80px;
            height: 80px;
            border-radius: 12px;
            overflow: hidden;
            margin-left: 1rem;
            flex-shrink: 0;
        }
        
        .popular-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .popular-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        
        .popular-content .date {
            color: #666;
            font-size: 0.8rem;
        }
        
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1rem;
        }
        
        .tag {
            background: var(--light-color);
            color: #333;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .tag:hover {
            background: var(--primary-color);
            color: white;
        }
        
        /* خبرنامه */
        .newsletter {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 3rem;
            border-radius: 20px;
            text-align: center;
            margin-top: 3rem;
        }
        
        .newsletter h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        .newsletter p {
            opacity: 0.9;
            margin-bottom: 2rem;
        }
        
        .newsletter-form {
            max-width: 500px;
            margin: 0 auto;
            display: flex;
            gap: 1rem;
        }
        
        .newsletter-input {
            flex: 1;
            border: none;
            border-radius: 50px;
            padding: 1rem 1.5rem;
            font-size: 1rem;
        }
        
        .newsletter-btn {
            background: var(--accent-color);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 1rem 2rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .newsletter-btn:hover {
            background: #29b6f6;
            transform: translateY(-2px);
        }
        
        /* پagination */
        .pagination {
            justify-content: center;
            margin-top: 3rem;
        }
        
        .page-link {
            border: none;
            color: #333;
            padding: 0.75rem 1.25rem;
            margin: 0 0.25rem;
            border-radius: 12px;
            transition: all 0.3s ease;
        }
        
        .page-link:hover {
            background: var(--primary-color);
            color: white;
        }
        
        .page-item.active .page-link {
            background: var(--primary-color);
            color: white;
        }
        
        
        
        /* رسپانسیو */
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            
            .newsletter-form {
                flex-direction: column;
            }
            
            .sidebar {
                padding: 2rem;
            }
        }

           /* بخش اصلی */
        .article-main {
            padding: 4rem 0;
        }
        
        .article-content {
            background: white;
            border-radius: 20px;
            padding: 3rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            margin-bottom: 2rem;
        }
        
        .article-image {
            width: 100%;
            height: 400px;
            border-radius: 15px;
            overflow: hidden;
            margin-bottom: 2.5rem;
        }
        
        .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .content-section {
            margin-bottom: 2.5rem;
        }
        .content-section {
            padding: 20px 20px;
            background: var(--light-color);
        }
        .content-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: var(--dark-color);
            position: relative;
            padding-bottom: 0.5rem;
        }
        
        .content-section h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            right: 0;
            width: 60px;
            height: 3px;
            background: var(--primary-color);
            border-radius: 2px;
        }
        
        .content-section p {
            margin-bottom: 1.2rem;
            color: #555;
            line-height: 1.8;
        }
        
        .content-section ul, .content-section ol {
            margin-right: 1.5rem;
            margin-bottom: 1.5rem;
        }
        
        .content-section li {
            margin-bottom: 0.8rem;
            color: #555;
        }
        
        .highlight-box {
            background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
            color: white;
            padding: 2rem;
            border-radius: 15px;
            margin: 2rem 0;
            box-shadow: 0 10px 25px rgba(79, 195, 247, 0.3);
        }
        
        .highlight-box h4 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        /* سایدبار */
        .sidebar {
            background: white;
            border-radius: 20px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            margin-bottom: 2rem;
        }
        
        .sidebar-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid #e2e8f0;
            color: var(--dark-color);
        }
        
        .author-card {
            text-align: center;
            padding: 2rem 1rem;
            border-radius: 15px;
            background: var(--light-color);
        }
        
        .author-avatar {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--primary-color);
            margin: 0 auto 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            font-weight: 700;
        }
        
        .author-name {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--dark-color);
        }
        
        .author-title {
            color: var(--primary-color);
            margin-bottom: 1rem;
            font-weight: 600;
        }
        
        .author-bio {
            color: #666;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        
        /* .social-links {
            display: flex;
            justify-content: center;
            gap: 0.8rem;
        }
        
        .social-link {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: all 0.3s ease;
        } */
        
        .social-link:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
        }
        
        .related-articles {
            margin-top: 2rem;
        }
        
        .related-article {
            display: flex;
            margin-bottom: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .related-article:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        
        .related-image {
            width: 80px;
            height: 80px;
            border-radius: 12px;
            overflow: hidden;
            margin-left: 1rem;
            flex-shrink: 0;
        }
        
        .related-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .related-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        
        .related-content .date {
            color: #666;
            font-size: 0.8rem;
        }
        
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1rem;
        }
        
        .tag {
            background: var(--light-color);
            color: #333;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .tag:hover {
            background: var(--primary-color);
            color: white;
        }
        
        /* بخش نظرات */
        .comments-section {
            background: white;
            border-radius: 20px;
            padding: 3rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            margin-top: 3rem;
        }
        
        .comments-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 2rem;
            color: var(--dark-color);
        }
        
        .comment {
            padding: 2rem 0;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .comment:last-child {
            border-bottom: none;
        }
        
        .comment-header {
            display: flex;
            align-items: center;
            margin-bottom: 1rem;
        }
        
        .comment-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary-color);
            margin-left: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
        }
        
        .comment-info h5 {
            font-weight: 700;
            margin-bottom: 0.2rem;
            color: var(--dark-color);
        }
        
        .comment-date {
            color: #666;
            font-size: 0.9rem;
        }
        
        .comment-text {
            color: #555;
            line-height: 1.7;
        }
        
        .comment-form {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e2e8f0;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--dark-color);
        }
        
        .form-control {
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            padding: 0.75rem 1rem;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
        }
        
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        
        .submit-btn {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            border: none;
            border-radius: 12px;
            padding: 1rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(26, 115, 232, 0.3);
        }
        
        /* اشتراک گذاری */
        .share-section {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #e2e8f0;
        }
        
        .share-text {
            font-weight: 600;
            color: var(--dark-color);
        }
        
        .share-buttons {
            display: flex;
            gap: 0.5rem;
        }
        
        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .share-btn.telegram { background: #0088cc; }
        .share-btn.whatsapp { background: #25D366; }
        .share-btn.twitter { background: #1DA1F2; }
        .share-btn.linkedin { background: #0077B5; }
        
        .share-btn:hover {
            transform: translateY(-3px);
        }
        
        /* رسپانسیو */
        @media (max-width: 768px) {
            .article-title {
                font-size: 2rem;
            }
            
            .article-content, .sidebar, .comments-section {
                padding: 2rem;
            }
            
            .article-image {
                height: 250px;
            }
            
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
        }
        /* بخش ناوبری مقالات */
.article-navigation {
    padding: 3rem 0;
    margin-top: 2rem;
}

.nav-article {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid #e8eaed;
}

.nav-article:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    text-decoration: none;
    color: inherit;
}

.prev-article {
    text-align: right;
}

.next-article {
    text-align: left;
    justify-content: space-between;
}

.nav-arrow {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.nav-article:hover .nav-arrow {
    background: var(--secondary-color);
    transform: scale(1.1);
}

.nav-content {
    flex: 1;
    padding: 0 1rem;
}

.nav-label {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}

.nav-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    line-height: 1.4;
    color: var(--dark-color);
}

.nav-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #666;
    font-size: 0.9rem;
}

.nav-meta i {
    color: var(--primary-color);
}

/* رسپانسیو */
@media (max-width: 768px) {
    .article-navigation {
        padding: 2rem 0;
    }
    
    .nav-article {
        padding: 1.2rem;
        margin-bottom: 1rem;
    }
    
    .nav-title {
        font-size: 1rem;
    }
    
    .nav-arrow {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}