* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
        }
        a {
            color: #2c5282;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a365d;
            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(135deg, #1a365d 0%, #2c5282 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo span {
            color: #63b3ed;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        nav a:hover {
            text-decoration: none;
            color: #63b3ed;
        }
        nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: #63b3ed;
            left: 0;
            bottom: 0;
            transition: width 0.3s;
        }
        nav a:hover::after {
            width: 100%;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }
        .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;
        }
        .search-bar {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem 0;
            text-align: center;
        }
        .search-bar h3 {
            margin-bottom: 1rem;
            color: #2c5282;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-input:focus {
            border-color: #2c5282;
        }
        .search-button {
            background: #2c5282;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-button:hover {
            background: #1a365d;
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.06);
        }
        article h1 {
            font-size: 2.8rem;
            color: #1a365d;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #63b3ed;
            padding-bottom: 0.5rem;
        }
        .article-meta {
            color: #718096;
            font-size: 0.95rem;
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .article-meta i {
            margin-right: 0.3rem;
        }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid #e2e8f0;
        }
        h2 {
            font-size: 2rem;
            color: #2c5282;
            margin: 2.5rem 0 1rem 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.5rem;
            color: #4a5568;
            margin: 1.8rem 0 0.8rem 0;
        }
        h4 {
            font-size: 1.2rem;
            color: #718096;
            margin: 1.5rem 0 0.5rem 0;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.05rem;
        }
        emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        strong {
            color: #2d3748;
            font-weight: 700;
        }
        .highlight-box {
            background: #ebf8ff;
            border-left: 5px solid #4299e1;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .link-list {
            background: #f7fafc;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.8rem;
        }
        .link-list li::before {
            content: '🃏';
            margin-right: 0.5rem;
        }
        aside {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 1.5rem;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: #2c5282;
            margin-top: 0;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #ecc94b;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars .star {
            transition: transform 0.2s;
        }
        .stars .star:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            resize: vertical;
            min-height: 120px;
            margin-bottom: 1rem;
            font-family: inherit;
        }
        .comment-form button {
            width: 100%;
            padding: 0.8rem;
            background: #38a169;
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .comment-form button:hover {
            background: #2f855a;
        }
        footer {
            background: #1a202c;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: #63b3ed;
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            background: #2d3748;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
        }
        friend-link h4 {
            color: #63b3ed;
            margin-top: 0;
        }
        friend-link ul {
            list-style: none;
        }
        friend-link li {
            padding: 0.4rem 0;
            border-bottom: 1px dashed #4a5568;
        }
        friend-link a {
            color: #cbd5e0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a5568;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .mobile-toggle {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #2c5282;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-top: 1px solid #4a5568;
            }
            nav ul.active {
                display: flex;
            }
            article {
                padding: 1.5rem;
            }
            article h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 576px) {
            .search-form {
                flex-direction: column;
            }
            .search-input, .search-button {
                width: 100%;
                border-radius: 8px;
                margin-bottom: 0.5rem;
            }
            .link-list ul {
                grid-template-columns: 1fr;
            }
        }
        .highlight-box:hover {
            transform: translateX(5px);
            transition: transform 0.3s ease;
        }
        .sidebar-widget:hover {
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            transition: box-shadow 0.3s ease;
        }
        .stars .star:hover ~ .star {
            color: #cbd5e0;
        }