* {
            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%, #c3cfe2 100%);
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #4a6fa5;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ff7b9c;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            padding-left: 1.5em;
            margin: 1em 0;
        }
        h1, h2, h3, h4 {
            font-family: 'Comic Sans MS', 'Chalkboard SE', sans-serif;
            color: #2c3e50;
            margin-top: 1.5em;
            margin-bottom: 0.7em;
            line-height: 1.3;
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 3.8rem);
            background: linear-gradient(90deg, #ff7b9c, #4a6fa5);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-align: center;
            padding-bottom: 0.3em;
            border-bottom: 4px dashed #ffc4d6;
        }
        h2 {
            font-size: 2.2rem;
            color: #4a6fa5;
            border-left: 6px solid #ff7b9c;
            padding-left: 15px;
            margin-top: 2em;
        }
        h3 {
            font-size: 1.8rem;
            color: #5a7fb8;
        }
        h4 {
            font-size: 1.4rem;
            color: #6b8bc7;
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.3em 0.6em;
            border-radius: 5px;
            font-weight: bold;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(to right, #2c3e50, #4a6fa5);
            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;
        }
        .my-logo {
            font-family: 'Comic Sans MS', cursive;
            font-size: 2.5rem;
            font-weight: bold;
            color: #ffcc00;
            text-shadow: 2px 2px 0 #ff7b9c;
        }
        .my-logo:hover {
            color: #ffeb3b;
            transform: scale(1.05);
            transition: transform 0.3s;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.2);
            color: #ffcc00;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9f1fa;
            font-size: 0.95rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #888;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        main {
            background-color: white;
            padding: 2.5rem;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        aside.sidebar {
            background-color: #f8f9fa;
            padding: 1.8rem;
            border-radius: 15px;
            border: 2px solid #e3e9f1;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .search-widget {
            margin-bottom: 2rem;
        }
        .search-widget h3 {
            margin-top: 0;
            font-size: 1.5rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #c3cfe2;
            border-radius: 10px 0 0 10px;
            font-size: 1rem;
        }
        .search-form button {
            background: linear-gradient(to right, #4a6fa5, #2c3e50);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 10px 10px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: linear-gradient(to right, #ff7b9c, #ff4d7c);
        }
        .interactive-box {
            background: linear-gradient(145deg, #e6f2ff, #ffffff);
            border: 2px solid #a3c4ff;
            border-radius: 15px;
            padding: 2rem;
            margin: 2.5rem 0;
            box-shadow: 0 8px 20px rgba(163, 196, 255, 0.3);
        }
        .interactive-box h3 {
            color: #2c3e50;
            margin-top: 0;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #ffcc00;
            cursor: pointer;
        }
        .rating-stars .star:hover,
        .rating-stars .star:hover ~ .star {
            color: #ffcc00;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #c3cfe2;
            border-radius: 10px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #ff7b9c;
            outline: none;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #ff7b9c, #ff4d7c);
            color: white;
            padding: 0.9rem 2rem;
            border: none;
            border-radius: 10px;
            font-weight: bold;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(255, 123, 156, 0.4);
        }
        .article-image {
            margin: 2.5rem auto;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
            max-width: 800px;
            border: 5px solid white;
        }
        .article-image figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.8rem;
            background-color: #f8f9fa;
            color: #666;
        }
        .info-tip {
            background-color: #e8f4fd;
            border-left: 5px solid #4a6fa5;
            padding: 1.2rem;
            margin: 1.8rem 0;
            border-radius: 0 10px 10px 0;
        }
        .info-tip strong {
            color: #2c3e50;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-list a {
            background-color: #e9f1fa;
            padding: 0.7rem 1.5rem;
            border-radius: 50px;
            display: flex;
            align-items: center;
            gap: 0.7rem;
            font-weight: 600;
            border: 2px solid transparent;
        }
        .link-list a:hover {
            background-color: #d4e3f7;
            border-color: #4a6fa5;
            transform: translateY(-2px);
        }
        .site-footer {
            background: linear-gradient(to right, #2c3e50, #1a2530);
            color: #ddd;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h4 {
            color: #ffcc00;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #b0c4de;
        }
        .footer-links a:hover {
            color: #ffcc00;
            padding-left: 5px;
            transition: padding-left 0.3s;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 10px;
            margin-bottom: 1rem;
            border: 1px solid #444;
        }
        friend-link a {
            color: #ffcc00;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 500px;
                margin-top: 1rem;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .main-nav a {
                padding: 1rem;
            }
            main {
                padding: 1.5rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }