* {
            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: #f8f9fa;
            margin: 0;
            padding: 0;
        }
        a {
            text-decoration: none;
            color: #d32f2f;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #9a0007;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1c1c1c, #3a3a3a);
            color: #fff;
            padding: 15px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 2px;
            color: #ff6f61;
            text-transform: uppercase;
            font-family: 'Arial Black', sans-serif;
        }
        .my-logo:hover {
            color: #ffccbc;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 25px;
        }
        .main-nav a {
            color: #fff;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background-color: #d32f2f;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ff6f61;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 12px 20px;
            margin-top: 10px;
            border-radius: 5px;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #d32f2f;
        }
        .main-content {
            padding: 30px 0;
            background-color: #fff;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-top: 20px;
        }
        .article-header {
            text-align: center;
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 3px solid #ff6f61;
        }
        h1 {
            font-size: 2.8rem;
            color: #1c1c1c;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .last-updated {
            font-style: italic;
            color: #666;
            font-size: 0.95rem;
            margin-top: 10px;
        }
        .content-section {
            margin-bottom: 40px;
        }
        h2 {
            font-size: 2rem;
            color: #d32f2f;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ffccbc;
        }
        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;
            font-size: 1.1rem;
            line-height: 1.8;
            text-align: justify;
        }
        .highlight {
            background-color: #fff3e0;
            padding: 15px;
            border-left: 5px solid #ff6f61;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .featured-image {
            text-align: center;
            margin: 30px 0;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            max-width: 800px;
            margin: 0 auto;
        }
        .functional-section {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            margin: 40px 0;
            border: 1px solid #ddd;
        }
        .functional-section h3 {
            color: #1c1c1c;
            margin-top: 0;
        }
        form {
            display: grid;
            gap: 15px;
            max-width: 600px;
            margin-top: 15px;
        }
        input, textarea, select {
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
            width: 100%;
        }
        button {
            background-color: #d32f2f;
            color: #fff;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: background-color 0.3s ease;
        }
        button:hover {
            background-color: #9a0007;
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ffd700;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .site-footer {
            background-color: #1c1c1c;
            color: #fff;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        .footer-section h4 {
            color: #ff6f61;
            margin-bottom: 20px;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section li {
            margin-bottom: 10px;
        }
        .footer-section a {
            color: #ccc;
        }
        .footer-section a:hover {
            color: #ff6f61;
        }
        friend-link {
            display: block;
            background-color: #2a2a2a;
            padding: 15px;
            border-radius: 5px;
            margin-top: 10px;
        }
        friend-link a {
            color: #ffccbc;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            margin-top: 30px;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .my-logo {
                font-size: 1.8rem;
                margin-bottom: 15px;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            .main-nav ul {
                flex-direction: column;
                display: none;
                width: 100%;
                background-color: #2a2a2a;
                padding: 15px;
                border-radius: 5px;
                margin-top: 10px;
            }
            .main-nav.active ul {
                display: flex;
            }
            .main-nav li {
                margin: 10px 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 15px;
            }
        }
        @media (min-width: 769px) {
            .main-nav ul {
                display: flex !important;
            }
        }