* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #e0e0e0;
            background: #0a0f1c;
            background-image: radial-gradient(circle at 20% 30%, rgba(30, 60, 120, 0.2) 0%, transparent 20%),
                              radial-gradient(circle at 80% 70%, rgba(120, 30, 60, 0.15) 0%, transparent 20%);
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        h1, h2, h3, h4 {
            font-family: 'Arial Narrow', Arial, sans-serif;
            font-weight: 700;
            color: #4dabf7;
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            color: #00b4d8;
            text-align: center;
            border-bottom: 3px solid #0077b6;
            padding-bottom: 20px;
            margin-top: 1rem;
            text-shadow: 0 0 10px rgba(0, 180, 216, 0.3);
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid #0077b6;
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #90e0ef;
        }
        h4 {
            font-size: 1.5rem;
            color: #ade8f4;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .site-header {
            background: rgba(10, 20, 40, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid #0077b6;
            box-shadow: 0 5px 20px rgba(0, 20, 40, 0.7);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Orbitron', 'Arial Black', sans-serif;
            font-size: 2.5rem;
            font-weight: 900;
            color: #00b4d8;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 15px #0077b6;
            transition: all 0.3s ease;
            padding: 10px 20px;
            border: 2px solid transparent;
            border-image: linear-gradient(45deg, #0077b6, #00b4d8) 1;
        }
        .my-logo:hover {
            text-shadow: 0 0 20px #00b4d8;
            transform: scale(1.05);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .nav-link {
            color: #90e0ef;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 15px;
            border-radius: 5px;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        .nav-link:hover {
            background: rgba(0, 116, 217, 0.2);
            border-color: #0077b6;
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #00b4d8;
            cursor: pointer;
            background: none;
            border: none;
        }
        .breadcrumb {
            margin: 1.5rem 0;
            padding: 10px 15px;
            background: rgba(20, 40, 80, 0.5);
            border-radius: 8px;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #4dabf7;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-container {
            max-width: 600px;
            margin: 3rem auto;
            padding: 20px;
            background: rgba(20, 40, 80, 0.4);
            border-radius: 10px;
            border: 1px solid #0077b6;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 15px;
            background: rgba(10, 25, 50, 0.8);
            border: 2px solid #0077b6;
            border-right: none;
            color: #fff;
            font-size: 1.1rem;
            border-radius: 8px 0 0 8px;
        }
        .search-btn {
            padding: 0 25px;
            background: linear-gradient(45deg, #0077b6, #00b4d8);
            color: white;
            border: none;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: all 0.3s ease;
        }
        .search-btn:hover {
            background: linear-gradient(45deg, #00b4d8, #0077b6);
            transform: scale(1.05);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        .main-content {
            background: rgba(15, 30, 60, 0.6);
            padding: 2.5rem;
            border-radius: 15px;
            border: 1px solid rgba(0, 116, 217, 0.3);
            box-shadow: 0 10px 30px rgba(0, 20, 40, 0.5);
        }
        .sidebar {
            background: rgba(15, 30, 60, 0.6);
            padding: 2rem;
            border-radius: 15px;
            border: 1px solid rgba(0, 116, 217, 0.3);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            margin-top: 0;
            padding-bottom: 10px;
            border-bottom: 2px solid #0077b6;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 12px;
            padding: 10px;
            background: rgba(30, 60, 120, 0.3);
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .sidebar li:hover {
            background: rgba(0, 116, 217, 0.3);
            transform: translateX(5px);
        }
        .sidebar a {
            color: #90e0ef;
            text-decoration: none;
            display: block;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            border: 3px solid #0077b6;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(0, 80, 160, 0.3), rgba(0, 40, 100, 0.3));
            border-left: 5px solid #00b4d8;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        .user-interaction {
            margin: 3rem 0;
            padding: 2rem;
            background: rgba(20, 40, 80, 0.5);
            border-radius: 15px;
            border: 2px solid #0077b6;
        }
        .comment-form, .rating-form {
            margin-top: 2rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 8px;
            color: #90e0ef;
            font-weight: 600;
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 12px;
            background: rgba(10, 25, 50, 0.8);
            border: 2px solid #0077b6;
            color: #fff;
            border-radius: 8px;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(45deg, #0077b6, #00b4d8);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            background: linear-gradient(45deg, #00b4d8, #0077b6);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 116, 217, 0.4);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: #ffd700;
        }
        .site-footer {
            margin-top: 4rem;
            padding: 3rem 0;
            background: rgba(10, 20, 40, 0.95);
            border-top: 3px solid #0077b6;
            text-align: center;
        }
        .friend-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin: 2rem 0;
        }
        .friend-link {
            color: #4dabf7;
            text-decoration: none;
            padding: 10px 20px;
            background: rgba(30, 60, 120, 0.5);
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .friend-link:hover {
            background: rgba(0, 116, 217, 0.5);
            transform: translateY(-5px);
        }
        .copyright {
            margin-top: 2rem;
            color: #90a0b0;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .main-nav {
                flex-direction: column;
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 20px;
                right: 15px;
            }
            .nav-link {
                padding: 12px 0;
                border-bottom: 1px solid rgba(0, 116, 217, 0.3);
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .main-content, .sidebar, .user-interaction {
            animation: fadeIn 0.8s ease-out;
        }
        .text-bold {
            color: #00b4d8;
            font-weight: 700;
        }
        .update-time {
            color: #ffb347;
            font-weight: 600;
            font-size: 1.1rem;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 5px;
        }