* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background: #f8f9fa;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(135deg, #2c3e50, #4a6491);
            color: white;
            padding: 1.5rem 0;
            border-bottom: 5px solid #e74c3c;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover { color: #1abc9c; }
        .my-logo i { font-size: 2.5rem; }
        .search-form {
            flex: 1;
            max-width: 400px;
            margin: 0 20px;
            position: relative;
        }
        .search-form input {
            width: 100%;
            padding: 12px 20px;
            border-radius: 50px;
            border: 2px solid transparent;
            font-size: 1rem;
            background: rgba(255,255,255,0.15);
            color: white;
            backdrop-filter: blur(10px);
        }
        .search-form input::placeholder { color: #ddd; }
        .search-form input:focus {
            outline: none;
            border-color: #1abc9c;
            background: rgba(255,255,255,0.25);
        }
        .search-form button {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: white;
            font-size: 1.2rem;
            cursor: pointer;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(255,255,255,0.2);
            color: #1abc9c;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            background: #f1f1f1;
            border-radius: 5px;
            margin: 10px 0;
            padding-left: 20px;
        }
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 30px 0;
        }
        article {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
        }
        .article-header {
            border-bottom: 2px solid #eee;
            padding-bottom: 20px;
            margin-bottom: 30px;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #2c3e50;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .meta {
            color: #7f8c8d;
            font-size: 0.95rem;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .meta i { margin-right: 5px; }
        .hero-image {
            width: 100%;
            border-radius: 10px;
            overflow: hidden;
            margin: 25px 0;
            border: 1px solid #eee;
        }
        .hero-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .hero-image:hover img { transform: scale(1.03); }
        h2 {
            font-size: 2rem;
            color: #2980b9;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 1px dashed #bdc3c7;
        }
        h3 {
            font-size: 1.6rem;
            color: #16a085;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: #8e44ad;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 1.2em;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.2rem;
            color: #2c3e50;
            font-weight: 500;
            background: #f8f9fa;
            padding: 20px;
            border-left: 5px solid #3498db;
            border-radius: 0 10px 10px 0;
            margin: 25px 0;
        }
        em, strong {
            color: #e74c3c;
        }
        .highlight {
            background: linear-gradient(120deg, #a1c4fd80, #c2e9fb80);
            padding: 2px 6px;
            border-radius: 3px;
        }
        .inset-link {
            display: inline-block;
            margin: 10px 0;
            color: #3498db;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted #3498db;
            transition: all 0.3s;
        }
        .inset-link:hover {
            color: #e74c3c;
            border-bottom-style: solid;
        }
        aside {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 150px;
        }
        .widget {
            margin-bottom: 30px;
        }
        .widget-title {
            font-size: 1.4rem;
            color: #2c3e50;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid #1abc9c;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 12px;
            padding: 10px;
            border-radius: 8px;
            transition: background 0.3s;
        }
        .link-list li:hover {
            background: #f1f8ff;
        }
        .link-list a {
            color: #2c3e50;
            text-decoration: none;
            display: block;
            font-weight: 500;
        }
        .link-list a:hover { color: #e74c3c; }
        .link-list i {
            color: #3498db;
            margin-right: 10px;
            width: 20px;
        }
        .interaction-box {
            background: #f8f9fa;
            border: 2px solid #e9ecef;
            border-radius: 12px;
            padding: 25px;
            margin: 40px 0;
        }
        .interaction-box h3 { margin-top: 0; }
        .rating {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }
        .stars {
            font-size: 1.8rem;
            color: #f1c40f;
        }
        .stars i { cursor: pointer; transition: color 0.2s; }
        .stars i:hover { color: #f39c12; }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #3498db;
            outline: none;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #3498db, #2c3e50);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(to right, #2980b9, #1a252f);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0,0,0,0.1);
        }
        .btn i { margin-right: 8px; }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 40px 0 20px;
            border-top: 5px solid #1abc9c;
            margin-top: 50px;
            border-radius: 15px 15px 0 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 15px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.1);
        }
        friend-link a {
            color: #1abc9c;
            text-decoration: none;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #bdc3c7;
        }
        @media (max-width: 992px) {
            .content-area { grid-template-columns: 1fr; }
            aside { position: static; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 500px;
                margin-top: 20px;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 10px;
            }
            .header-container { flex-wrap: wrap; }
            .search-form { order: 3; margin: 20px 0 0; max-width: 100%; }
            .article-header h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
        }
        @media (max-width: 480px) {
            .article-header h1 { font-size: 1.8rem; }
            .my-logo { font-size: 1.8rem; }
            .btn { width: 100%; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, aside { animation: fadeIn 0.8s ease-out; }