* {
            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: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #1a73e8;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .header {
            background: linear-gradient(90deg, #1e3c72, #2a5298);
            color: white;
            padding: 1rem 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;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 700;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            text-decoration: none;
            color: #ffcc00;
        }
        .logo i {
            font-size: 2.5rem;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #2a5298;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile a:hover {
            background: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #f1f3f4;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: #5f6368;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: #5f6368;
        }
        .main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .article h1 {
            font-size: 2.5rem;
            color: #1a73e8;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article h2 {
            font-size: 1.8rem;
            color: #2a5298;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffcc00;
        }
        .article h3 {
            font-size: 1.4rem;
            color: #1e3c72;
            margin: 1.5rem 0 0.8rem;
        }
        .article p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .article .highlight {
            background: #fff8e1;
            padding: 1rem;
            border-left: 4px solid #ffcc00;
            margin: 1.5rem 0;
            font-weight: 500;
        }
        .article em {
            color: #d32f2f;
            font-style: italic;
        }
        .article strong {
            color: #1e3c72;
            font-weight: 700;
        }
        .image-container {
            margin: 2rem auto;
            text-align: center;
        }
        .image-container img {
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            max-width: 800px;
        }
        .image-caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 0.5rem;
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            height: fit-content;
        }
        .sidebar h3 {
            color: #2a5298;
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        .search-box, .comment-box, .rating-box {
            margin-bottom: 2rem;
        }
        .search-box form, .comment-box form, .rating-box form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            width: 100%;
        }
        button {
            background: #1a73e8;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s ease;
        }
        button:hover {
            background: #0d47a1;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ffcc00;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .footer {
            background: #1e3c72;
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: #ffcc00;
        }
        friend-link {
            display: block;
            margin-top: 1rem;
        }
        .friend-links {
            list-style: none;
        }
        .friend-links a {
            color: #bbdefb;
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .friend-links a:hover {
            color: #ffcc00;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.2);
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #bbdefb;
        }
        .text-center { text-align: center; }
        .mb-2 { margin-bottom: 2rem; }
        .emoji { font-size: 1.2rem; }