* { 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-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-family: Georgia, 'Times New Roman', Times, serif; color: #2c3e50; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); margin-top: 1.5rem; border-bottom: 3px solid #e74c3c; padding-bottom: 0.5rem; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-top: 2.5rem; color: #34495e; padding-left: 0.5rem; border-left: 5px solid #3498db; }
        h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin-top: 2rem; color: #465c78; }
        h4 { font-size: 1.3rem; margin-top: 1.5rem; color: #5d6d7e; }
        p { margin-bottom: 1.2rem; text-align: justify; hyphens: auto; }
        a { color: #2980b9; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e74c3c; text-decoration: underline; }
        strong { color: #2c3e50; font-weight: 700; }
        em { font-style: italic; color: #7f8c8d; }
        .lead { font-size: 1.25rem; color: #555; font-weight: 300; }
        .last-updated { font-size: 0.9rem; color: #95a5a6; text-align: right; margin-bottom: 2rem; font-style: italic; }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        main.container { background-color: #fff; padding: 30px; border-radius: 10px; box-shadow: 0 5px 25px rgba(0,0,0,0.05); margin-top: 2rem; margin-bottom: 2rem; }
        .site-header {
            background: linear-gradient(135deg, #2c3e50 0%, #4a6491 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo a:hover { color: #ecf0f1; text-decoration: none; }
        .my-logo i { color: #e74c3c; }
        .main-nav { display: flex; align-items: center; }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #e74c3c;
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #ecf0f1;
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #7f8c8d;
        }
        .breadcrumb a { color: #3498db; }
        .interactive-module {
            background: #f1f8ff;
            border: 1px dashed #aac8e7;
            border-radius: 8px;
            padding: 1.5rem;
            margin: 2.5rem 0;
        }
        .module-title { font-size: 1.5rem; color: #2c3e50; margin-bottom: 1rem; display: flex; align-items: center; gap: 10px; }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #bdc3c7;
            border-radius: 5px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        .btn {
            display: inline-block;
            padding: 0.8rem 1.8rem;
            background: linear-gradient(to right, #3498db, #2980b9);
            color: white;
            border: none;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn:hover {
            background: linear-gradient(to right, #2980b9, #1c5a7a);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(41, 128, 185, 0.4);
            text-decoration: none;
            color: white;
        }
        .star-rating { display: flex; gap: 5px; margin: 1rem 0; direction: rtl; }
        .star-rating input { display: none; }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label { color: #f39c12; }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2.5rem 0;
            border: 5px solid #ecf0f1;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .insight-box {
            background: linear-gradient(145deg, #fff5e6, #ffe8cc);
            border-left: 6px solid #e67e22;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
            padding: 1.5rem;
            background-color: #f8f9fa;
            border-radius: 8px;
        }
        .link-list a {
            display: flex;
            align-items: center;
            padding: 0.8rem;
            background: white;
            border-radius: 5px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .link-list a:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            text-decoration: none;
        }
        .link-list i { margin-right: 10px; color: #3498db; }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 { color: #ecf0f1; margin-bottom: 1.5rem; font-size: 1.5rem; }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #bdc3c7;
            transition: color 0.3s;
        }
        friend-link a:hover { color: #3498db; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a5a6d;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .nav-links { gap: 1.2rem; }
        }
        @media (max-width: 768px) {
            .header-content { flex-direction: column; align-items: flex-start; gap: 1rem; }
            .main-nav { width: 100%; justify-content: space-between; }
            .hamburger { display: block; }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #34495e;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                gap: 0;
                border-top: 2px solid #2c3e50;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            }
            .nav-links.active { display: flex; }
            .nav-links li { width: 100%; }
            .nav-links a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid #4a5a6d;
            }
            .nav-links a::after { display: none; }
            main.container { padding: 20px; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
        }
        @media (max-width: 480px) {
            .link-list { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: 1fr; }
        }