:root {
            --primary-blue: #2c3e50;
            --accent-gold: #f39c12;
            --light-bg: #f8f9fa;
            --dark-text: #2c3e50;
            --medium-gray: #7f8c8d;
            --success-green: #27ae60;
            --card-shadow: 0 5px 15px rgba(0,0,0,0.08);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark-text);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-blue);
            text-decoration: none;
            letter-spacing: -0.5px;
        }
        .logo span {
            color: var(--accent-gold);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 30px;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--dark-text);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            position: relative;
            padding: 5px 0;
        }
        .nav-links a:hover {
            color: var(--accent-gold);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            background: none;
            border: none;
            padding: 10px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--primary-blue);
            margin: 3px 0;
            transition: var(--transition);
        }
        .breadcrumb {
            padding: 15px 0;
            background: #f1f2f6;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--medium-gray);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        .breadcrumb span {
            margin: 0 8px;
            color: #bdc3c7;
        }
        .search-container {
            margin: 30px auto;
            max-width: 600px;
        }
        .search-form {
            display: flex;
            box-shadow: var(--card-shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-form input {
            flex-grow: 1;
            padding: 15px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-form button:hover {
            background: var(--accent-gold);
        }
        main {
            padding: 30px 0 60px;
        }
        article {
            background: white;
            border-radius: 10px;
            padding: 40px;
            box-shadow: var(--card-shadow);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: var(--primary-blue);
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            margin: 40px 0 20px;
            color: var(--primary-blue);
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent-gold);
        }
        h3 {
            font-size: 1.5rem;
            margin: 30px 0 15px;
            color: var(--primary-blue);
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--medium-gray);
            font-weight: 500;
            margin-bottom: 30px;
            line-height: 1.6;
        }
        .highlight {
            background: linear-gradient(120deg, #fdf3d0 0%, #fdf3d0 100%);
            padding: 20px;
            border-left: 4px solid var(--accent-gold);
            margin: 30px 0;
            border-radius: 0 5px 5px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .stat-card {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 8px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
            border-top: 4px solid var(--primary-blue);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--accent-gold);
            margin-bottom: 15px;
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-blue);
            display: block;
            line-height: 1;
        }
        .stat-desc {
            color: var(--medium-gray);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            display: block;
            margin: 30px auto;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--medium-gray);
            margin-top: -20px;
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        blockquote {
            font-size: 1.3rem;
            font-style: italic;
            color: var(--primary-blue);
            border-left: 5px solid var(--accent-gold);
            padding-left: 25px;
            margin: 40px 0 40px 30px;
            line-height: 1.6;
        }
        blockquote footer {
            font-size: 1rem;
            color: var(--medium-gray);
            margin-top: 15px;
            font-style: normal;
        }
        ul, ol {
            margin-left: 30px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        .user-interaction {
            background: #f8f9fa;
            padding: 40px;
            border-radius: 10px;
            margin: 50px 0;
            border-top: 5px solid var(--primary-blue);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .interaction-form h3 {
            margin-top: 0;
        }
        .interaction-form label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .interaction-form input,
        .interaction-form textarea,
        .interaction-form select {
            width: 100%;
            padding: 12px 15px;
            margin-bottom: 20px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .interaction-form input:focus,
        .interaction-form textarea:focus,
        .interaction-form select:focus {
            outline: none;
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 2px rgba(243, 156, 18, 0.2);
        }
        .interaction-form button {
            background: var(--primary-blue);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .interaction-form button:hover {
            background: var(--accent-gold);
        }
        .star-rating {
            direction: rtl;
            display: inline-block;
            margin-bottom: 20px;
        }
        .star-rating input[type="radio"] {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            font-size: 1.8rem;
            padding: 0 3px;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating input[type="radio"]:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--accent-gold);
        }
        .web-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            margin: 50px 0 40px;
            padding: 30px 0;
            border-top: 1px solid #eee;
            border-bottom: 1px solid #eee;
        }
        .web-link {
            background: #f1f2f6;
            padding: 10px 20px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: var(--accent-gold);
            transform: translateY(-3px);
        }
        .web-link a {
            color: var(--primary-blue);
            text-decoration: none;
            font-weight: 600;
            white-space: nowrap;
        }
        .web-link:hover a {
            color: white;
        }
        footer {
            background: var(--primary-blue);
            color: white;
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-content {
            max-width: 800px;
            margin: 0 auto;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .lead { font-size: 1.2rem; }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: white;
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 40px;
                transition: var(--transition);
                box-shadow: 0 5px 15px rgba(0,0,0,0.1);
                z-index: 999;
            }
            .nav-links.active {
                left: 0;
            }
            .nav-links li {
                margin: 15px 0;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            article {
                padding: 25px;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .web-links {
                gap: 10px;
            }
            .web-link {
                padding: 8px 15px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 480px) {
            html { font-size: 14px; }
            .header-content { padding: 10px 0; }
            .logo a { font-size: 1.7rem; }
            .search-form input { padding: 12px 20px; }
            .search-form button { padding: 0 20px; }
        }