* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        a {
            color: #2c5aa0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e67e22;
        }
        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, #1a237e, #283593);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffcc80;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            font-size: 2rem;
        }
        .my-logo:hover {
            color: #fff;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav a {
            color: #e3f2fd;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        nav a:hover, nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: #ffcc80;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #edf2f7;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #718096;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        aside {
            background: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffcc80;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2.5rem 0 1.2rem;
            padding-left: 0.8rem;
            border-left: 5px solid #e67e22;
        }
        h3 {
            font-size: 1.6rem;
            color: #2c5aa0;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #4a5568;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.2rem;
            color: #4a5568;
            font-weight: 500;
            background: #f0f9ff;
            padding: 1.2rem;
            border-radius: 8px;
            border-left: 4px solid #2c5aa0;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fff9db;
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px dashed #e67e22;
            margin: 1.5rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        strong {
            color: #1a237e;
        }
        ul, ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .search-box {
            margin-bottom: 2rem;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #cbd5e0;
            border-right: none;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-box button {
            background: #2c5aa0;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #1a237e;
        }
        .comment-form, .rating-form {
            background: #f8fafc;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            border: 1px solid #e2e8f0;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #4a5568;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(90deg, #e67e22, #d35400);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(230, 126, 34, 0.3);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffd700;
            margin: 0.5rem 0;
        }
        .star {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star:hover {
            transform: scale(1.2);
        }
        .article-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem auto;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            border: 5px solid white;
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #718096;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            border-bottom: 2px solid #ffcc80;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .related-links ul {
            list-style: none;
            padding-left: 0;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            border-left: 3px solid transparent;
            transition: all 0.3s;
        }
        .related-links li:hover {
            border-left-color: #2c5aa0;
            padding-left: 1.5rem;
        }
        footer {
            background: #1a237e;
            color: #e3f2fd;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            color: #ffcc80;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
            color: #bbdefb;
        }
        friend-link:hover {
            color: #ffcc80;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #283593;
            font-size: 0.9rem;
            color: #90caf9;
        }
        .last-updated {
            background: #e8f5e9;
            padding: 0.8rem;
            border-radius: 6px;
            margin: 1.5rem 0;
            font-size: 0.9rem;
            color: #2e7d32;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article, aside {
                padding: 1.5rem;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }