* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #f9f4ff 0%, #e6f0ff 100%);
            color: #333;
            line-height: 1.8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #6a5acd;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #ff69b4;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .site-header {
            background: #ffffff;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #8a2be2;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #ff69b4;
        }
        .my-logo:hover {
            color: #6a5acd;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            background: #f0f8ff;
        }
        .main-nav a:hover {
            background: #e6e6fa;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #8a2be2;
        }
        .breadcrumb {
            background: #f5f5f5;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb a:hover {
            color: #8a2be2;
        }
        main {
            flex: 1;
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        article {
            background: #ffffff;
            padding: 2.5rem;
            border-radius: 18px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.8rem;
            color: #4b0082;
            margin-bottom: 1.5rem;
            text-align: center;
            line-height: 1.3;
        }
        h2 {
            font-size: 2.2rem;
            color: #6a5acd;
            margin: 2.5rem 0 1rem;
            border-left: 6px solid #ffb6c1;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #9370db;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.5rem;
            color: #ba55d3;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: #fffacd;
            padding: 1.5rem;
            border-radius: 12px;
            border-left: 5px solid #ffd700;
            margin: 1.5rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .functional-forms {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        form {
            background: #f9f9ff;
            padding: 1.8rem;
            border-radius: 12px;
            border: 2px dashed #dda0dd;
        }
        form h3 {
            color: #8a2be2;
            margin-top: 0;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            margin: 0.5rem 0 1rem;
            border: 2px solid #ccc;
            border-radius: 8px;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #8a2be2;
            outline: none;
        }
        button {
            background: linear-gradient(90deg, #8a2be2, #6a5acd);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: bold;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        button:hover {
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(138, 43, 226, 0.4);
        }
        .featured-image {
            text-align: center;
            margin: 2.5rem 0;
        }
        .featured-image figcaption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
        }
        .content-links {
            display: inline-block;
            font-weight: 600;
            border-bottom: 2px dotted #6a5acd;
        }
        .content-links:hover {
            border-bottom-style: solid;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #888;
            margin-top: 3rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }
        footer {
            background: #4b0082;
            color: #fff;
            padding: 2.5rem 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ffb6c1;
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin: 0.8rem 0;
            padding: 0.5rem;
            background: rgba(255,255,255,0.1);
            border-radius: 6px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
        }
        friend-link a {
            color: #e6e6fa;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #6a5acd;
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                position: absolute;
                top: 100%;
                left: 0;
                box-shadow: 0 8px 16px rgba(0,0,0,0.1);
                padding: 1rem;
                border-radius: 0 0 12px 12px;
            }
            .main-nav.active ul {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.5rem;
            }
            .functional-forms {
                grid-template-columns: 1fr;
            }
        }