* { 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%, #e4e8f0 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #2c3e50; font-weight: 700; margin-bottom: 1rem; }
        h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); line-height: 1.2; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); border-bottom: 3px solid #e74c3c; padding-bottom: 0.5rem; margin-top: 2.5rem; }
        h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); color: #34495e; margin-top: 2rem; }
        h4 { font-size: 1.3rem; color: #7f8c8d; }
        p { margin-bottom: 1.2rem; font-size: 1.1rem; }
        .lead { font-size: 1.3rem; font-weight: 300; color: #555; }
        .highlight { background-color: #fffacd; padding: 2px 5px; border-radius: 3px; }
        .keyword { color: #e74c3c; font-weight: bold; }
        em { font-style: italic; }
        strong { font-weight: 700; color: #2c3e50; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        main.container { padding-top: 2rem; padding-bottom: 3rem; }
        header {
            background: #2c3e50;
            color: white;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: #e74c3c;
            text-decoration: none;
            letter-spacing: 1px;
            transition: color 0.3s;
        }
        .my-logo:hover { color: #ff7b6b; }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav li { margin-left: 1.8rem; }
        nav a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 5px;
            transition: color 0.3s, border-bottom 0.3s;
            border-bottom: 2px solid transparent;
        }
        nav a:hover, nav a.active {
            color: #e74c3c;
            border-bottom: 2px solid #e74c3c;
        }
        .breadcrumb {
            background: #34495e;
            padding: 12px 0;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #bdc3c7;
            text-decoration: none;
        }
        .breadcrumb a:hover { color: #e74c3c; }
        .breadcrumb span { color: #ecf0f1; margin: 0 8px; }
        .hero {
            background: linear-gradient(rgba(44, 62, 80, 0.85), rgba(44, 62, 80, 0.9)), url('https://images.unsplash.com/photo-1590099033615-be195f8d575c?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            padding: 4rem 20px;
            text-align: center;
            border-radius: 0 0 20px 20px;
            margin-bottom: 3rem;
        }
        .hero h1 { color: white; margin-bottom: 1rem; }
        .hero p { font-size: 1.4rem; max-width: 800px; margin: 0 auto 2rem; color: #ecf0f1; }
        section { margin-bottom: 3rem; }
        .content-card {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            margin-bottom: 2.5rem;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .content-card:hover { transform: translateY(-5px); box-shadow: 0 12px 30px rgba(0,0,0,0.12); }
        .img-container {
            margin: 2rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 6px 15px rgba(0,0,0,0.1);
        }
        .caption { text-align: center; font-style: italic; color: #7f8c8d; margin-top: 0.5rem; font-size: 0.95rem; }
        .form-box {
            background: #f8f9fa;
            border-left: 5px solid #3498db;
            padding: 1.8rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .form-title { color: #2c3e50; margin-bottom: 1.2rem; }
        .form-group { margin-bottom: 1.2rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        input, select, textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, select:focus, textarea:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        .btn {
            display: inline-block;
            background: #e74c3c;
            color: white;
            padding: 14px 28px;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        .btn:hover {
            background: #c0392b;
            transform: scale(1.03);
        }
        .btn-secondary { background: #3498db; }
        .btn-secondary:hover { background: #2980b9; }
        .rating-widget { display: flex; align-items: center; flex-wrap: wrap; gap: 15px; margin: 1.5rem 0; }
        .stars { display: flex; gap: 5px; }
        .star { font-size: 1.8rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #f1c40f; }
        .rating-text { font-size: 1.1rem; font-weight: 600; color: #2c3e50; }
        .internal-links {
            background: #e8f4fc;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links h3 { margin-top: 0; }
        .internal-links ul { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 10px; }
        .internal-links li { padding: 8px 0; border-bottom: 1px dashed #bdc3c7; }
        .internal-links a { color: #2c3e50; text-decoration: none; transition: color 0.3s; }
        .internal-links a:hover { color: #e74c3c; text-decoration: underline; }
        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: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 { color: white; border-bottom: 2px solid #e74c3c; padding-bottom: 0.7rem; }
        .footer-links { list-style: none; margin-top: 1rem; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover { color: #e74c3c; }
        friend-link {
            display: block;
            background: #34495e;
            padding: 15px;
            border-radius: 8px;
            margin: 15px 0;
            transition: background 0.3s;
        }
        friend-link:hover { background: #3d566e; }
        friend-link a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #34495e;
            font-size: 0.95rem;
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            .header-top { flex-wrap: wrap; }
            .mobile-toggle { display: block; }
            nav { width: 100%; display: none; margin-top: 1rem; }
            nav.active { display: block; }
            nav ul { flex-direction: column; }
            nav li { margin: 0; border-bottom: 1px solid #34495e; }
            nav a { display: block; padding: 12px 0; }
            .hero { padding: 3rem 20px; }
            .content-card { padding: 1.8rem; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
        }
        .text-center { text-align: center; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .last-updated { font-size: 0.9rem; color: #7f8c8d; font-style: italic; margin-top: 2rem; }
        .divider {
            height: 1px;
            background: linear-gradient(to right, transparent, #bdc3c7, transparent);
            margin: 2.5rem 0;
        }