* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f9f9;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            text-decoration: none;
            color: #007bff;
            transition: color 0.3s;
        }
        a:hover {
            color: #0056b3;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            padding: 20px 0;
            border-radius: 0 0 10px 10px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.5rem;
            font-weight: bold;
            color: #ffeb3b;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            color: #ffc107;
            text-decoration: none;
        }
        .logo i {
            font-size: 2.8rem;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links li a {
            color: white;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 5px;
            transition: background 0.3s;
        }
        .nav-links li a:hover {
            background: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #666;
            margin-top: 10px;
        }
        .breadcrumb a {
            color: #007bff;
        }
        .breadcrumb a:hover {
            color: #0056b3;
        }
        main {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            margin: 20px 0;
        }
        article {
            max-width: 900px;
            margin: 0 auto;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 20px;
            border-bottom: 3px solid #ffeb3b;
            padding-bottom: 10px;
        }
        h2 {
            font-size: 2rem;
            color: #4a148c;
            margin: 30px 0 15px;
            padding-left: 10px;
            border-left: 5px solid #007bff;
        }
        h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 25px 0 10px;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            line-height: 1.8;
        }
        .highlight {
            background: #fff9c4;
            padding: 15px;
            border-left: 4px solid #ffeb3b;
            margin: 20px 0;
            border-radius: 5px;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .featured-image {
            margin: 30px auto;
            text-align: center;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 6px 15px rgba(0,0,0,0.1);
        }
        .featured-image img {
            width: 100%;
            max-width: 800px;
            height: auto;
        }
        .image-caption {
            font-style: italic;
            color: #666;
            padding: 10px;
            background: #f5f5f5;
        }
        .functional-section {
            background: #e3f2fd;
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
            border: 1px solid #bbdefb;
        }
        .functional-section h3 {
            color: #1565c0;
            margin-top: 0;
        }
        form {
            display: grid;
            gap: 15px;
            margin-top: 15px;
        }
        input, textarea, select {
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
            width: 100%;
            max-width: 500px;
        }
        button {
            background: #007bff;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
            width: fit-content;
        }
        button:hover {
            background: #0056b3;
        }
        .inline-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 20px 0;
            padding: 15px;
            background: #f5f5f5;
            border-radius: 8px;
        }
        .inline-links a {
            background: white;
            padding: 8px 15px;
            border-radius: 20px;
            border: 1px solid #ddd;
            transition: all 0.3s;
        }
        .inline-links a:hover {
            background: #007bff;
            color: white;
            border-color: #007bff;
            text-decoration: none;
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 30px 20px;
            border-radius: 10px 10px 0 0;
            margin-top: 40px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .friend-links a {
            color: #ffeb3b;
            padding: 5px 0;
            border-bottom: 1px dashed rgba(255,235,59,0.3);
        }
        .friend-links a:hover {
            color: #ffc107;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.2);
            font-size: 0.9rem;
            color: #bbbbbb;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                display: none;
                margin-top: 20px;
            }
            .nav-links li {
                width: 100%;
                text-align: center;
            }
            .nav-links li a {
                display: block;
                padding: 15px;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 30px;
                right: 20px;
            }
            #nav-toggle:checked ~ .nav-links {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            main {
                padding: 20px;
            }
            .functional-section {
                padding: 20px;
            }
        }
        @media (min-width: 769px) {
            .nav-links {
                display: flex !important;
            }
        }
        .last-updated {
            font-style: italic;
            color: #888;
            text-align: right;
            margin-bottom: 20px;
            font-size: 0.9rem;
        }