* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        h1, h2, h3, h4 {
            font-family: 'Arial Black', Gadget, sans-serif;
            color: #2c3e50;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        h1 {
            font-size: 2.8rem;
            color: #e74c3c;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
            border-bottom: 4px solid #3498db;
            padding-bottom: 0.5rem;
            margin-bottom: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #2980b9;
            margin-top: 2.5rem;
            padding-left: 0.75rem;
            border-left: 5px solid #f39c12;
        }
        h3 {
            font-size: 1.8rem;
            color: #16a085;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #8e44ad;
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(to right, #1a2980, #26d0ce);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Impact', Charcoal, sans-serif;
            font-size: 2.2rem;
            color: #f1c40f;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: #ffdd59;
            transform: scale(1.05);
        }
        .my-logo i {
            margin-right: 10px;
            color: #e74c3c;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .desktop-nav a:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: #2c3e50;
            flex-direction: column;
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            transition: background 0.3s;
        }
        .mobile-nav a:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background-color: #ecf0f1;
            padding: 0.8rem 0;
            margin-bottom: 2rem;
            border-radius: 5px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #7f8c8d;
        }
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 3fr 1fr;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        @media (max-width: 768px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px dashed #bdc3c7;
            color: #7f8c8d;
            font-size: 0.95rem;
        }
        .last-updated {
            font-weight: bold;
            color: #e74c3c;
        }
        .intro {
            font-size: 1.2rem;
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 2.5rem;
            border-left: 5px solid #3498db;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .content-img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #7f8c8d;
            margin-top: 0.5rem;
            margin-bottom: 2rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff9e6, #ffebcc);
            border-left: 5px solid #f39c12;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
            box-shadow: 0 4px 8px rgba(243, 156, 18, 0.1);
        }
        .tip {
            background-color: #e8f6f3;
            border-left: 5px solid #1abc9c;
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 0 5px 5px 0;
        }
        .strategy-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .strategy-card {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            border-top: 4px solid #3498db;
            transition: all 0.3s ease;
        }
        .strategy-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(52, 152, 219, 0.15);
        }
        .internal-link {
            color: #2980b9;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted #3498db;
            transition: all 0.3s;
        }
        .internal-link:hover {
            color: #e74c3c;
            border-bottom-style: solid;
        }
        aside {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: #2c3e50;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #f39c12;
            margin-bottom: 1.2rem;
        }
        .search-form {
            display: flex;
            margin-bottom: 1rem;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #bdc3c7;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-form input:focus {
            outline: none;
            border-color: #3498db;
        }
        .search-form button {
            background: #3498db;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #2980b9;
        }
        .rating-widget, .comment-widget {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin-top: 1.5rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #f39c12;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #3498db;
        }
        .submit-btn {
            background: linear-gradient(to right, #3498db, #2ecc71);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #2980b9, #27ae60);
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(41, 128, 185, 0.3);
        }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #f1c40f;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }
        friend-link a:hover {
            color: #3498db;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            .desktop-nav ul { gap: 1rem; }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .desktop-nav {
                display: none;
            }
            .mobile-nav {
                display: none;
            }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.5rem; }
            article, aside {
                padding: 1.5rem;
            }
            .main-grid {
                gap: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 { font-size: 1.8rem; }
            .my-logo {
                font-size: 1.8rem;
            }
            .strategy-list {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .fade-in {
            animation: fadeIn 1s ease-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .bold-highlight {
            font-weight: 800;
            color: #e74c3c;
            background-color: rgba(231, 76, 60, 0.1);
            padding: 0 3px;
            border-radius: 3px;
        }
        .divider {
            height: 2px;
            background: linear-gradient(to right, transparent, #3498db, transparent);
            margin: 2.5rem 0;
        }