* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a237e;
            --secondary: #ff4081;
            --accent: #00bcd4;
            --light: #f5f5f5;
            --dark: #121212;
            --text: #333;
            --text-light: #666;
            --border: #ddd;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
            --radius: 8px;
            --max-width: 1200px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-header {
            background: var(--primary);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo span {
            color: var(--secondary);
            background: white;
            padding: 2px 8px;
            border-radius: 4px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-links {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            padding: 0.5rem;
            border-radius: var(--radius);
        }
        .nav-links a:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
        }
        .search-input {
            padding: 0.5rem 1rem;
            border: none;
            border-radius: var(--radius);
            min-width: 200px;
        }
        .search-btn {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: #e91e63;
            transform: scale(1.05);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0.5rem;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background: var(--light);
            padding: 1rem 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-links {
            display: flex;
            gap: 0.5rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb-links a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb-links li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        .article-section {
            background: white;
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
            height: fit-content;
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 0.5rem;
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            padding-left: 1rem;
            border-left: 5px solid var(--accent);
        }
        h3 {
            color: var(--primary);
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--text);
            font-size: 1.2rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            background: linear-gradient(90deg, #e3f2fd, transparent);
            padding: 1rem;
            border-radius: var(--radius);
            border-left: 4px solid var(--accent);
        }
        .highlight {
            background: linear-gradient(120deg, #ffeb3b44 0%, #ffeb3b44 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
        }
        .bold {
            font-weight: 800;
            color: var(--primary);
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .featured-image:hover {
            transform: scale(1.01);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .content-link {
            color: var(--secondary);
            text-decoration: none;
            border-bottom: 1px dashed var(--secondary);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
        }
        .info-box {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: var(--radius);
        }
        .interaction-section {
            background: white;
            border-radius: var(--radius);
            padding: 2rem;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--primary);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-family: inherit;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,188,212,0.2);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            margin: 1rem 0;
        }
        .rating-stars i {
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #ffc107;
        }
        .submit-btn {
            background: linear-gradient(135deg, var(--primary), #283593);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .submit-btn:hover {
            background: linear-gradient(135deg, #283593, var(--primary));
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(26,35,126,0.2);
        }
        .sidebar-title {
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding: 0.8rem;
            background: var(--light);
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .related-links li:hover {
            background: #e8eaf6;
            transform: translateX(5px);
        }
        .related-links a {
            color: var(--text);
            text-decoration: none;
            display: block;
        }
        .related-links i {
            color: var(--secondary);
            margin-right: 0.5rem;
        }
        .main-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        friend-link a {
            color: var(--accent);
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                padding: 2rem;
                gap: 1rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .header-container {
                padding: 0.8rem 0;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .search-form {
                margin-top: 1rem;
                width: 100%;
            }
            .search-input {
                flex-grow: 1;
            }
        }
        @media (max-width: 576px) {
            .article-section, .sidebar {
                padding: 1.5rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .submit-btn {
                width: 100%;
                justify-content: center;
            }
        }
        .last-updated {
            display: inline-block;
            background: var(--accent);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 0.2rem;
        }
        .text-center {
            text-align: center;
        }
        .mt-3 { margin-top: 3rem; }
        .mb-3 { margin-bottom: 3rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }