* { 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, #f9f9f9 0%, #f1f8ff 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(90deg, #1a3a5f 0%, #2c5282 100%);
            color: white;
            padding: 1rem 2rem;
            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;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffd166;
            text-decoration: none;
            letter-spacing: 1px;
            font-family: 'Georgia', serif;
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: #fff;
            transform: scale(1.05);
        }
        .my-logo span { color: #06d6a0; }
        .nav-desktop {
            display: flex;
            gap: 1.5rem;
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
        }
        .nav-desktop a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: all 0.3s;
        }
        .nav-desktop a:hover {
            background: #06d6a0;
            color: #1a3a5f;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #2c5282;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            color: #e2e8f0;
            padding: 0.8rem;
            text-decoration: none;
            border-bottom: 1px solid #4a7bb8;
            transition: background 0.3s;
        }
        .nav-mobile a:hover { background: #1a3a5f; }
        .breadcrumb {
            background: #edf2f7;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #cbd5e0;
        }
        .breadcrumb a {
            color: #2c5282;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        @media (max-width: 1024px) {
            .main-container { grid-template-columns: 1fr; }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .article-header { margin-bottom: 2rem; }
        h1 {
            color: #1a3a5f;
            font-size: 2.8rem;
            margin-bottom: 1rem;
            line-height: 1.2;
            border-left: 6px solid #06d6a0;
            padding-left: 1rem;
        }
        .meta-info {
            color: #718096;
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .meta-info i { color: #06d6a0; }
        h2 {
            color: #2c5282;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffd166;
            font-size: 2rem;
        }
        h3 {
            color: #1a3a5f;
            margin: 2rem 0 1rem;
            font-size: 1.6rem;
        }
        h4 {
            color: #4a5568;
            margin: 1.5rem 0 0.8rem;
            font-size: 1.3rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
            color: #2d3748;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd16630 0%, #06d6a030 100%);
            border-left: 4px solid #ffd166;
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        strong { color: #1a3a5f; }
        em { color: #2c5282; }
        a.content-link {
            color: #2c5282;
            text-decoration: underline;
            font-weight: 600;
            transition: color 0.3s;
        }
        a.content-link:hover {
            color: #06d6a0;
            text-decoration: none;
        }
        .feature-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem auto;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .feature-img:hover { transform: scale(1.01); }
        aside {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget h3 {
            font-size: 1.4rem;
            color: #1a3a5f;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #cbd5e0;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.8rem;
            border: 2px solid #cbd5e0;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background: #2c5282;
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover { background: #1a3a5f; }
        .rating-widget, .comment-widget {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ffd166;
            cursor: pointer;
        }
        .stars i:hover { transform: scale(1.2); }
        .rating-form input, .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #cbd5e0;
            border-radius: 6px;
            margin-bottom: 0.8rem;
            font-family: inherit;
        }
        .btn {
            background: linear-gradient(90deg, #06d6a0, #059669);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(90deg, #059669, #047857);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(6, 214, 160, 0.3);
        }
        footer {
            background: #1a3a5f;
            color: #e2e8f0;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #ffd166;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: #ffd166;
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.6rem; }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover { color: #06d6a0; }
        friend-link {
            display: block;
            background: #2c5282;
            padding: 1rem;
            border-radius: 6px;
            margin: 1rem 0;
        }
        friend-link a {
            color: #ffd166;
            font-weight: 600;
            text-decoration: none;
        }
        friend-link a:hover { text-decoration: underline; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a7bb8;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .main-container, .site-header, .breadcrumb { padding: 0 1rem; }
            article { padding: 1.5rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.4rem; }
        }