* {
            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%, #e4e8f0 100%);
            min-height: 100vh;
            padding-bottom: 60px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1, h2, h3, h4 {
            font-family: 'Georgia', serif;
            color: #2c3e50;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid #3498db;
            padding-bottom: 15px;
            margin-top: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #2980b9;
            margin-top: 2.5rem;
            padding-left: 10px;
            border-left: 5px solid #e74c3c;
        }
        h3 {
            font-size: 1.8rem;
            color: #16a085;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #8e44ad;
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: #555;
            background-color: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            border-left: 5px solid #3498db;
        }
        .highlight {
            background-color: #fffacd;
            padding: 2px 5px;
            border-radius: 3px;
            font-weight: 600;
        }
        .note {
            background-color: #e8f4fc;
            border-left: 5px solid #3498db;
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .warning {
            background-color: #fde8e8;
            border-left: 5px solid #e74c3c;
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        a {
            color: #2980b9;
            text-decoration: none;
            transition: color 0.3s ease, background-color 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        blockquote {
            font-style: italic;
            color: #555;
            border-left: 4px solid #95a5a6;
            padding-left: 20px;
            margin: 25px 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
        }
        @media (min-width: 992px) {
            .main-grid {
                grid-template-columns: 3fr 1fr;
            }
        }
        .site-header {
            background: linear-gradient(90deg, #2c3e50, #4a6491);
            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;
            flex-wrap: wrap;
        }
        .my-logo a {
            color: white;
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #e74c3c;
        }
        .my-logo:hover {
            transform: scale(1.02);
            transition: transform 0.3s ease;
        }
        .nav-desktop {
            display: none;
        }
        @media (min-width: 768px) {
            .nav-desktop {
                display: flex;
                gap: 25px;
            }
            .nav-desktop a {
                color: #ecf0f1;
                font-weight: 500;
                padding: 8px 0;
                position: relative;
            }
            .nav-desktop a:after {
                content: '';
                position: absolute;
                width: 0;
                height: 3px;
                background: #e74c3c;
                left: 0;
                bottom: 0;
                transition: width 0.3s ease;
            }
            .nav-desktop a:hover:after {
                width: 100%;
            }
        }
        .hamburger {
            display: block;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        @media (min-width: 768px) {
            .hamburger {
                display: none;
            }
        }
        .nav-mobile {
            display: none;
            width: 100%;
            background-color: #34495e;
            padding: 15px 0;
            margin-top: 15px;
            border-radius: 0 0 10px 10px;
        }
        .nav-mobile.active {
            display: block;
            animation: fadeIn 0.3s ease;
        }
        .nav-mobile a {
            display: block;
            color: #ecf0f1;
            padding: 12px 20px;
            border-bottom: 1px solid #4a6491;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .nav-mobile a:hover {
            background-color: #3d566e;
            padding-left: 25px;
            transition: all 0.3s ease;
        }
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #7f8c8d;
            background-color: #f8f9fa;
            border-bottom: 1px solid #eaeaea;
        }
        .breadcrumb a {
            color: #3498db;
        }
        .breadcrumb span {
            margin: 0 8px;
            color: #95a5a6;
        }
        .search-container {
            background-color: #fff;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 30px 0;
            border: 1px solid #e0e6ed;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .search-input:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        .search-btn {
            background: linear-gradient(90deg, #3498db, #2980b9);
            color: white;
            border: none;
            padding: 15px 25px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-btn:hover {
            background: linear-gradient(90deg, #2980b9, #1c5a7a);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(41, 128, 185, 0.3);
        }
        .article-content {
            background-color: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.06);
            margin-bottom: 30px;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            color: #7f8c8d;
            font-size: 0.9rem;
            padding-bottom: 20px;
            margin-bottom: 25px;
            border-bottom: 1px dashed #ddd;
        }
        .featured-image {
            width: 100%;
            border-radius: 12px;
            overflow: hidden;
            margin: 30px 0;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .sidebar {
            background-color: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.06);
            align-self: start;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: #2c3e50;
            padding-bottom: 10px;
            border-bottom: 2px solid #f1c40f;
            margin-bottom: 20px;
        }
        .link-list a {
            display: block;
            padding: 12px 15px;
            margin-bottom: 10px;
            background-color: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid #3498db;
            transition: all 0.3s ease;
        }
        .link-list a:hover {
            background-color: #e3f2fd;
            border-left-color: #e74c3c;
            padding-left: 20px;
        }
        .interaction-section {
            background-color: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.06);
            margin-top: 40px;
        }
        .interaction-section h2 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #2c3e50;
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 14px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
            font-family: inherit;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        .rating-container {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 5px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #f1c40f;
        }
        .submit-btn {
            background: linear-gradient(90deg, #2ecc71, #27ae60);
            color: white;
            border: none;
            padding: 16px 35px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #27ae60, #219653);
            transform: translateY(-3px);
            box-shadow: 0 7px 20px rgba(46, 204, 113, 0.3);
        }
        .site-footer {
            background: linear-gradient(90deg, #2c3e50, #34495e);
            color: #ecf0f1;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }
        @media (min-width: 768px) {
            .footer-container {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .footer-widget h4 {
            color: #f1c40f;
            border-bottom: 2px solid #f1c40f;
            padding-bottom: 10px;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #3498db;
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            margin-top: 25px;
            border-top: 1px solid #4a6491;
            color: #bdc3c7;
            font-size: 0.9rem;
            grid-column: 1 / -1;
        }
        .text-center { text-align: center; }
        .mt-4 { margin-top: 2rem; }
        .mb-4 { margin-bottom: 2rem; }
        .emoji { font-size: 1.2em; }