:root {
            --primary-color: #6a5acd; 
            --secondary-color: #ff69b4; 
            --accent-color: #98fb98; 
            --dark-bg: #2a2a3c;
            --light-bg: #f9f9ff;
            --text-dark: #333344;
            --text-light: #f0f0fa;
            --border-radius: 12px;
            --shadow: 0 5px 15px rgba(106, 90, 205, 0.1);
            --transition: all 0.3s ease;
            --max-width: 1280px;
        }
        * {
            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: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--border-radius);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo a i {
            color: var(--secondary-color);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            background: transparent;
            border: none;
            padding: 5px;
        }
        .hamburger span {
            height: 3px;
            width: 25px;
            background: var(--accent-color);
            margin: 3px 0;
            border-radius: 2px;
            transition: var(--transition);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255,255,255,0.1);
            text-decoration: none;
            color: var(--accent-color);
        }
        .breadcrumb {
            background-color: #e6e6fa;
            padding: 1rem;
            border-radius: var(--border-radius);
            margin: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
        }
        .breadcrumb span {
            color: #777;
        }
        .hero {
            text-align: center;
            padding: 4rem 1rem;
            background: linear-gradient(135deg, #e0e7ff 0%, #fce7f3 100%);
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            color: var(--primary-color);
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: var(--text-dark);
        }
        .cta-button {
            display: inline-block;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-weight: bold;
            font-size: 1.2rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .cta-button:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(106, 90, 205, 0.3);
            text-decoration: none;
            color: white;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 3rem 0;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 { font-size: 3rem; }
        h2 { font-size: 2.2rem; border-bottom: 3px solid var(--accent-color); padding-bottom: 0.5rem; }
        h3 { font-size: 1.8rem; color: var(--secondary-color); }
        h4 { font-size: 1.4rem; }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fffacd;
            padding: 1.5rem;
            border-left: 5px solid #ffd700;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            font-style: italic;
        }
        .tip-box {
            background-color: #f0f8ff;
            border: 2px dashed var(--primary-color);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        .tip-box h4 {
            color: var(--primary-color);
            margin-top: 0;
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            margin-top: 0;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid #eee;
        }
        .sidebar a {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-container {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 3rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--primary-color);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            border-color: var(--primary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(106, 90, 205, 0.2);
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: var(--secondary-color);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating input { display: none; }
        .rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffd700;
        }
        friend-link {
            display: block;
            background-color: #f5f5ff;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        .friend-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        .friend-link-item {
            background: white;
            padding: 1rem;
            border-radius: var(--border-radius);
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .friend-link-item:hover {
            transform: translateY(-5px);
            background-color: var(--accent-color);
        }
        .site-footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-col h3 {
            color: var(--accent-color);
            margin-top: 0;
            margin-bottom: 1.5rem;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 0.8rem;
        }
        .footer-col a {
            color: #ccc;
        }
        .footer-col a:hover {
            color: var(--accent-color);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav ul {
                position: fixed;
                top: 80px;
                right: -100%;
                flex-direction: column;
                background-color: var(--dark-bg);
                width: 100%;
                height: calc(100vh - 80px);
                padding: 2rem;
                transition: var(--transition);
                z-index: 999;
                align-items: center;
                justify-content: start;
                gap: 2rem;
            }
            .main-nav.active ul {
                right: 0;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .content-grid {
                gap: 2rem;
            }
            article, .sidebar {
                padding: 1.5rem;
            }
        }
        .text-center { text-align: center; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .last-updated {
            font-style: italic;
            color: #777;
            font-size: 0.9rem;
            margin-top: 3rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }
        .emoji { font-size: 1.2em; }
        .keyword { font-weight: bold; color: var(--primary-color); }