* { 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: #f8f9fa;
            background-image: linear-gradient(to bottom right, #f0f4f8, #e3e9f2);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #2c3e50; font-weight: 700; line-height: 1.2; margin-bottom: 0.8rem; }
        h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); margin-top: 1.5rem; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); border-left: 5px solid #3498db; padding-left: 15px; margin-top: 2.5rem; }
        h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); color: #2980b9; margin-top: 2rem; }
        h4 { font-size: 1.2rem; color: #555; margin-top: 1.5rem; }
        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; }
        strong { color: #2c3e50; font-weight: 700; }
        em { font-style: italic; color: #7f8c8d; }
        blockquote {
            border-left: 4px solid #3498db;
            background: #ecf0f1;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
        }
        .highlight { background-color: #fffacd; padding: 2px 5px; border-radius: 3px; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-wrapper {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 992px) {
            .main-wrapper { grid-template-columns: 3fr 1fr; }
        }
        .site-header {
            background: linear-gradient(135deg, #2c3e50 0%, #1a2530 100%);
            color: #fff;
            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-size: 2rem;
            font-weight: 900;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        .my-logo span {
            color: #3498db;
            text-shadow: 0 0 5px rgba(52, 152, 219, 0.5);
        }
        .my-logo:hover { color: #ecf0f1; }
        .breadcrumb {
            padding: 1rem 0;
            background: #ecf0f1;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #7f8c8d; }
        .breadcrumb a:hover { color: #3498db; }
        .breadcrumb span { color: #2c3e50; font-weight: 600; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .main-nav a {
            color: #ecf0f1;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover { color: #3498db; }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #3498db;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                right: -100%;
                width: 80%;
                max-width: 300px;
                height: calc(100vh - 70px);
                background: #2c3e50;
                transition: right 0.4s ease;
                padding: 2rem;
                box-shadow: -5px 0 15px rgba(0,0,0,0.2);
                overflow-y: auto;
            }
            .main-nav.active { right: 0; }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
        }
        .content-main {
            background: #fff;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }
        .article-meta {
            color: #7f8c8d;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #ddd;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .last-updated { color: #e74c3c; font-weight: 600; }
        .featured-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .sidebar {
            background: #fff;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            height: fit-content;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget-title {
            font-size: 1.3rem;
            color: #2c3e50;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3498db;
            margin-bottom: 1rem;
        }
        .search-form {
            display: flex;
            margin-bottom: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-btn {
            background: #3498db;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-btn:hover { background: #2980b9; }
        .rating-form, .comment-form {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 8px;
            margin-top: 1.5rem;
        }
        .form-group { margin-bottom: 1rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: #2c3e50; }
        input, select, textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        textarea { min-height: 120px; resize: vertical; }
        .submit-btn {
            background: #2ecc71;
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s ease;
        }
        .submit-btn:hover { background: #27ae60; }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
        }
        .star-rating input { display: none; }
        .star-rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label { color: #f39c12; }
        .internal-links {
            background: #ecf0f1;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .internal-links h3 { margin-top: 0; }
        .internal-links ul { list-style: none; padding-left: 0; }
        .internal-links li { margin-bottom: 0.7rem; padding-left: 1.5rem; position: relative; }
        .internal-links li::before {
            content: '🔗';
            position: absolute;
            left: 0;
        }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-widget h4 { color: #fff; border-left: 4px solid #3498db; padding-left: 10px; }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
            color: #bdc3c7;
        }
        friend-link a { color: #bdc3c7; }
        friend-link a:hover { color: #3498db; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #34495e;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        .emoji { font-size: 1.2em; }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 3rem; }
        .p-3 { padding: 1.5rem; }
        .rounded { border-radius: 8px; }
        .shadow { box-shadow: 0 4px 8px rgba(0,0,0,0.05); }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content-main, .sidebar { animation: fadeIn 0.6s ease-out; }