* {
            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: #f0f0f0;
            background: linear-gradient(180deg, #0a1520 0%, #1a2b3d 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #74c0fc;
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .site-header {
            background-color: rgba(10, 21, 32, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #1e4b6d;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
        }
        .header-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .header-container {
                flex-direction: row;
                justify-content: space-between;
            }
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(90deg, #00b4d8, #0077b6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
            text-decoration: none !important;
        }
        .my-logo:hover {
            text-decoration: none;
            transform: scale(1.03);
        }
        .mobile-toggle {
            display: block;
            background: none;
            border: 1px solid #2c5a7a;
            color: #fff;
            font-size: 1.5rem;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            cursor: pointer;
            position: absolute;
            top: 1rem;
            right: 20px;
        }
        @media (min-width: 768px) {
            .mobile-toggle {
                display: none;
            }
        }
        .main-nav {
            width: 100%;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease-in-out;
        }
        .main-nav.active {
            max-height: 500px;
        }
        @media (min-width: 768px) {
            .main-nav {
                max-height: none;
                width: auto;
                display: block;
            }
        }
        .nav-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            padding: 1rem 0;
        }
        @media (min-width: 768px) {
            .nav-list {
                flex-direction: row;
                align-items: center;
                gap: 1.5rem;
                padding: 0;
            }
        }
        .nav-list a {
            color: #caf0f8;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            display: block;
            font-weight: 500;
        }
        .nav-list a:hover {
            background-color: rgba(30, 75, 109, 0.5);
            text-decoration: none;
        }
        .breadcrumb {
            background-color: rgba(30, 75, 109, 0.3);
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #4dabf7;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (min-width: 992px) {
            .main-content {
                grid-template-columns: 1fr 300px;
            }
        }
        .article-content {
            background: rgba(20, 40, 60, 0.7);
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            border: 1px solid #2c5a7a;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        h1, h2, h3, h4 {
            color: #90e0ef;
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid #0077b6;
            padding-bottom: 0.5rem;
            margin-top: 0;
        }
        h2 {
            font-size: 2rem;
            color: #48cae4;
        }
        h3 {
            font-size: 1.6rem;
            color: #ade8f4;
        }
        h4 {
            font-size: 1.3rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        strong {
            color: #90e0ef;
            font-weight: 700;
        }
        em {
            color: #caf0f8;
            font-style: italic;
        }
        blockquote {
            border-left: 4px solid #0077b6;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            background: rgba(0, 119, 182, 0.1);
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        ul, ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(0, 119, 182, 0.2), rgba(0, 180, 216, 0.2));
            border: 1px solid #00b4d8;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            font-size: 0.9rem;
            color: #aaa;
            margin-top: 0.5rem;
        }
        .module {
            background: rgba(25, 50, 75, 0.8);
            border-radius: 10px;
            padding: 1.5rem;
            border: 1px solid #3a6d8c;
        }
        .module h3 {
            margin-top: 0;
            color: #4dabf7;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .module h3 i {
            font-size: 1.4rem;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        label {
            font-weight: 600;
            color: #caf0f8;
        }
        input, textarea, select {
            padding: 0.8rem;
            border-radius: 6px;
            border: 1px solid #4dabf7;
            background-color: rgba(10, 21, 32, 0.7);
            color: #fff;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #90e0ef;
            box-shadow: 0 0 0 3px rgba(144, 224, 239, 0.3);
        }
        button, .btn {
            background: linear-gradient(90deg, #0077b6, #0096c7);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(90deg, #0096c7, #00b4d8);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 150, 199, 0.4);
            text-decoration: none;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffd700;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .stars span {
            transition: transform 0.2s;
        }
        .stars span:hover {
            transform: scale(1.2);
        }
        .site-footer {
            background-color: #0a1520;
            border-top: 2px solid #1e4b6d;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 768px) {
            .footer-container {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .footer-section h4 {
            color: #48cae4;
            margin-top: 0;
            border-bottom: 1px solid #2c5a7a;
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            background: rgba(30, 75, 109, 0.3);
            padding: 0.8rem 1rem;
            margin-bottom: 0.8rem;
            border-radius: 6px;
            border-left: 4px solid #0077b6;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: rgba(30, 75, 109, 0.6);
            border-left-color: #00b4d8;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2c5a7a;
            color: #8b9cad;
            font-size: 0.9rem;
        }
        .last-updated {
            text-align: right;
            font-style: italic;
            color: #8b9cad;
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #3a6d8c;
        }