* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            max-width: 100%;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #2c5282;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a365d;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .italic { font-style: italic; }
        .underline { text-decoration: underline; }
        .highlight {
            background-color: #fffacd;
            padding: 2px 5px;
            border-radius: 3px;
        }
        header {
            background: linear-gradient(135deg, #1a365d 0%, #2d3748 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-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #f7fafc;
            letter-spacing: 1px;
            font-family: 'Georgia', serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            color: #e2e8f0;
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #cbd5e0;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .desktop-nav a:hover {
            background-color: rgba(255,255,255,0.1);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #2d3748;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 10px 15px rgba(0,0,0,0.2);
        }
        .mobile-nav a {
            color: #cbd5e0;
            padding: 1rem;
            border-bottom: 1px solid #4a5568;
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #edf2f7;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb a:hover {
            color: #2d3748;
        }
        .breadcrumb span {
            color: #718096;
        }
        main {
            padding: 2rem 0;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem auto;
        }
        article {
            padding: 0 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a365d;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #e2e8f0;
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #2d3748;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.8rem;
            color: #4a5568;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #718096;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            color: #2d3748;
            background-color: #f7fafc;
            padding: 1.5rem;
            border-left: 5px solid #2c5282;
            margin-bottom: 2.5rem;
            border-radius: 0 8px 8px 0;
        }
        .featured-image {
            float: right;
            margin: 0 0 2rem 2rem;
            max-width: 500px;
            border-radius: 10px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }
        blockquote {
            background: linear-gradient(to right, #e2e8f0, #f7fafc);
            border-left: 10px solid #2c5282;
            margin: 2rem 0;
            padding: 1.5rem 2rem;
            font-style: italic;
            color: #2d3748;
            border-radius: 0 10px 10px 0;
        }
        blockquote cite {
            display: block;
            margin-top: 1rem;
            font-weight: bold;
            color: #4a5568;
        }
        ul, ol {
            margin: 1.5rem 0;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        .stats-box {
            background-color: #f0fff4;
            border: 2px solid #68d391;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .stats-box h3 {
            color: #2f855a;
            margin-top: 0;
        }
        .tips {
            background-color: #fffaf0;
            border: 2px solid #ed8936;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .tips h3 {
            color: #c05621;
        }
        .interactive-section {
            background-color: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 1px solid #e2e8f0;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .search-form input, .comment-form input, .comment-form textarea, .rating-form select {
            padding: 0.8rem 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 5px;
            font-size: 1rem;
            flex: 1;
            min-width: 250px;
        }
        .comment-form textarea {
            min-height: 150px;
            width: 100%;
            resize: vertical;
        }
        button {
            background: linear-gradient(to right, #2c5282, #1a365d);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        button:hover {
            background: linear-gradient(to right, #1a365d, #2c5282);
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #e2e8f0;
            margin: 1rem 0;
        }
        .stars .active {
            color: #f6ad55;
        }
        footer {
            background-color: #1a202c;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #f7fafc;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .footer-links a {
            display: block;
            color: #a0aec0;
            margin-bottom: 0.8rem;
        }
        .footer-links a:hover {
            color: #fff;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            color: #68d391;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        .last-updated {
            color: #e2e8f0;
            font-style: italic;
            margin-top: 1rem;
        }
        @media (max-width: 992px) {
            .header-content {
                flex-direction: column;
                gap: 1rem;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 20px;
            }
            .featured-image {
                float: none;
                margin: 0 auto 2rem;
                max-width: 100%;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }
            article {
                padding: 0 1rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
            .search-form, .comment-form, .rating-form {
                flex-direction: column;
            }
            .search-form input, .comment-form input, .comment-form textarea, .rating-form select {
                min-width: 100%;
            }
        }