* {
            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;
            padding: 0;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: #2a7de1;
        }
        a:hover {
            color: #ff6600;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .header {
            background: linear-gradient(135deg, #1a237e, #311b92);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
        }
        .logo a {
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: #ffcc00;
        }
        .nav {
            display: flex;
            gap: 2rem;
        }
        .nav a {
            color: white;
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav a:hover {
            color: #ffcc00;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #e3f2fd;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #1a237e;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        .article {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .article h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article h2 {
            font-size: 2rem;
            color: #311b92;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        .article h3 {
            font-size: 1.5rem;
            color: #4527a0;
            margin: 1.5rem 0 0.8rem;
        }
        .article h4 {
            font-size: 1.2rem;
            color: #5e35b1;
            margin: 1rem 0 0.5rem;
        }
        .article p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            line-height: 1.8;
            text-align: justify;
        }
        .article strong {
            color: #d84315;
            font-weight: 700;
        }
        .highlight {
            background: #fff3e0;
            padding: 1rem;
            border-left: 5px solid #ff9800;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .image-container {
            margin: 2rem auto;
            text-align: center;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            max-width: 800px;
            width: 100%;
        }
        .caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .link-list {
            background: #f5f5f5;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .link-list h3 {
            color: #1a237e;
        }
        .link-list ul {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        .link-list li a {
            display: block;
            padding: 0.8rem;
            background: white;
            border-radius: 6px;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .link-list li a:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
            color: #ff6600;
        }
        .form-section {
            background: #f1f8ff;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .form-section h2 {
            color: #1a237e;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #333;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #2a7de1;
            outline: none;
        }
        button {
            background: linear-gradient(135deg, #2a7de1, #1a237e);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: bold;
            transition: background 0.3s, transform 0.2s;
        }
        button:hover {
            background: linear-gradient(135deg, #1a237e, #311b92);
            transform: scale(1.05);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating i {
            color: #ffcc00;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.3s;
        }
        .rating i:hover {
            color: #ff9800;
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        .sidebar h3 {
            color: #1a237e;
            margin-bottom: 1rem;
        }
        .footer {
            background: #1a237e;
            color: white;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: #ffcc00;
        }
        .footer-links a {
            color: #bbdefb;
            display: block;
            margin-bottom: 0.8rem;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
        }
        friend-link {
            display: block;
            background: #311b92;
            padding: 1rem;
            border-radius: 6px;
            margin: 1rem 0;
            text-align: center;
        }
        friend-link a {
            color: white;
            font-weight: bold;
            font-size: 1.1rem;
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #3949ab;
            color: #bbdefb;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                gap: 1rem;
            }
            .nav.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .article h1 {
                font-size: 2.2rem;
            }
            .article h2 {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 1rem;
                grid-template-columns: 1fr;
            }
            .link-list ul {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .special {
            color: #e91e63;
            font-weight: bold;
        }