* { 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: #2c3e50;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #1a73e8; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #0d47a1; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header { background: #1a237e; color: white; padding: 15px 0; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            font-style: italic;
            background: linear-gradient(90deg, #00bcd4, #4caf50);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo a { color: inherit; }
        .hamburger { display: none; cursor: pointer; font-size: 1.8rem; }
        #nav-toggle { display: none; }
        nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav a:hover { background: rgba(255,255,255,0.2); }
        .breadcrumb {
            background: #e3f2fd;
            padding: 12px 20px;
            margin: 10px 0;
            border-radius: 8px;
            font-size: 0.95rem;
        }
        .breadcrumb a { color: #1565c0; }
        .breadcrumb span { color: #546e7a; }
        main { flex: 1; padding: 30px 0; }
        article { background: white; border-radius: 15px; padding: 30px; box-shadow: 0 8px 30px rgba(0,0,0,0.08); }
        h1 { font-size: 2.8rem; color: #0d47a1; margin-bottom: 20px; border-left: 6px solid #4caf50; padding-left: 15px; }
        h2 { font-size: 2rem; color: #1a237e; margin: 30px 0 15px; padding-bottom: 8px; border-bottom: 3px solid #bbdefb; }
        h3 { font-size: 1.6rem; color: #283593; margin: 25px 0 12px; }
        h4 { font-size: 1.3rem; color: #3949ab; margin: 20px 0 10px; }
        p { margin-bottom: 18px; font-size: 1.1rem; text-align: justify; }
        .highlight { background: #e8f5e9; padding: 20px; border-radius: 10px; border-left: 5px solid #4caf50; margin: 25px 0; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .bold { font-weight: 800; color: #0d47a1; }
        .image-wrapper {
            text-align: center;
            margin: 30px auto;
            max-width: 800px;
        }
        .image-wrapper img {
            border-radius: 12px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
            border: 5px solid #bbdefb;
        }
        .caption { font-style: italic; color: #546e7a; margin-top: 10px; }
        .form-section {
            background: #f1f8e9;
            padding: 25px;
            border-radius: 12px;
            margin: 30px 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        .form-box h3 { margin-top: 0; }
        .form-box input, .form-box textarea, .form-box select {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border: 2px solid #c8e6c9;
            border-radius: 8px;
            font-size: 1rem;
        }
        .form-box button {
            background: #388e3c;
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: bold;
            transition: background 0.3s;
        }
        .form-box button:hover { background: #2e7d32; }
        footer {
            background: #1a237e;
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h3 { color: #bbdefb; margin-bottom: 15px; }
        friend-link {
            display: block;
            margin: 8px 0;
            padding: 10px;
            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: #bbdefb; }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #bbdefb;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav ul {
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: #1a237e;
                padding: 20px;
                display: none;
                z-index: 1000;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            #nav-toggle:checked ~ ul { display: flex; }
            .header-content { flex-wrap: wrap; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .form-section { grid-template-columns: 1fr; }
            article { padding: 20px; }
        }
        .last-updated {
            text-align: right;
            font-style: italic;
            color: #757575;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        .link-list {
            background: #f3e5f5;
            padding: 20px;
            border-radius: 10px;
            margin: 25px 0;
        }
        .link-list ul { list-style: none; padding-left: 20px; }
        .link-list li { margin: 10px 0; }
        .rating { color: #ff9800; font-size: 1.2rem; }