* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0a1a2a 0%, #1a3a5f 100%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #4dabf7; text-decoration: none; transition: color 0.3s, transform 0.2s; }
        a:hover { color: #74c0fc; transform: translateY(-2px); }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: rgba(10, 26, 42, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #2d5a91;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Palatino Linotype', 'Book Antiqua', serif;
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ffa500, #ff7b00, #ff5500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 5px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .my-logo:hover { transform: scale(1.05); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #c0d8f0;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background: rgba(45, 90, 145, 0.4);
            color: #ffffff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #ffa500;
            background: none;
            border: none;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: rgba(20, 40, 65, 0.7);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: #8a9bb2;
        }
        .search-module {
            background: rgba(30, 60, 90, 0.8);
            padding: 2rem;
            border-radius: 12px;
            margin: 2rem 0;
            text-align: center;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #2d5a91;
            border-radius: 50px 0 0 50px;
            background: #0a1a2a;
            color: #ffffff;
            font-size: 1.1rem;
            outline: none;
        }
        .search-btn {
            background: linear-gradient(90deg, #2d5a91, #3a7bc0);
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 0 2rem;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover { background: linear-gradient(90deg, #3a7bc0, #4dabf7); }
        .main-content {
            flex-grow: 1;
            padding: 2rem 0;
        }
        .article-content {
            background: rgba(20, 35, 55, 0.85);
            border-radius: 16px;
            padding: 3rem;
            margin-bottom: 3rem;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
            border: 1px solid #3a506b;
        }
        h1 {
            font-size: 3.2rem;
            color: #ffa500;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
            border-bottom: 3px dashed #2d5a91;
            padding-bottom: 1.5rem;
        }
        h2 {
            font-size: 2.4rem;
            color: #74c0fc;
            margin: 3rem 0 1.5rem;
            padding-left: 1rem;
            border-left: 5px solid #ffa500;
        }
        h3 {
            font-size: 1.8rem;
            color: #a5d8ff;
            margin: 2.5rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #c0d8f0;
            margin: 2rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.4rem;
            font-weight: 300;
            color: #b3d9ff;
            background: rgba(45, 90, 145, 0.2);
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 2.5rem;
            border-left: 5px solid #ffa500;
        }
        .highlight {
            background: rgba(255, 165, 0, 0.1);
            border-left: 4px solid #ffa500;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        ul, ol { margin: 1.5rem 0 1.5rem 2rem; }
        li { margin-bottom: 0.8rem; }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            border: 3px solid #2d5a91;
            margin: 2.5rem auto;
            box-shadow: 0 10px 25px rgba(0,0,0,0.7);
            transition: transform 0.5s;
        }
        .feature-img:hover { transform: scale(1.01); }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #8a9bb2;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .link-group {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-card {
            background: rgba(30, 60, 90, 0.7);
            padding: 1.2rem;
            border-radius: 8px;
            border: 1px solid #3a506b;
            transition: all 0.3s;
        }
        .link-card:hover {
            background: rgba(45, 90, 145, 0.7);
            border-color: #4dabf7;
            transform: translateY(-5px);
        }
        .interactive-module {
            background: rgba(25, 45, 70, 0.9);
            border-radius: 12px;
            padding: 2.5rem;
            margin: 3rem 0;
        }
        .rating-form, .comment-form {
            margin-bottom: 2.5rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.3rem;
            margin: 1rem 0;
        }
        .star-rating input { display: none; }
        .star-rating label {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label { color: #ffcc00; }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #a5d8ff;
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid #3a506b;
            background: #0a1a2a;
            color: #ffffff;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .form-input:focus, .form-textarea:focus { border-color: #4dabf7; }
        .form-textarea { min-height: 150px; resize: vertical; }
        .submit-btn {
            background: linear-gradient(90deg, #28a745, #20c997);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #20c997, #28a745);
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(32, 201, 151, 0.4);
        }
        .site-footer {
            background: #0a1a2a;
            border-top: 2px solid #2d5a91;
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffa500;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
        }
        .footer-section ul {
            list-style: none;
            margin: 0;
        }
        .footer-section a {
            color: #c0d8f0;
            display: block;
            padding: 0.3rem 0;
        }
        friend-link {
            display: block;
            padding: 0.5rem 0;
            color: #4dabf7;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d5a91;
            color: #8a9bb2;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.1rem; }
            .article-content { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; }
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active { max-height: 400px; margin-top: 1rem; }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li { width: 100%; }
            .main-nav a {
                display: block;
                padding: 0.8rem 1rem;
                border-bottom: 1px solid #2d5a91;
            }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.9rem; }
            .link-group { grid-template-columns: 1fr; }
            .footer-links { grid-template-columns: 1fr; }
        }
        @media (max-width: 576px) {
            .search-form { flex-direction: column; }
            .search-input, .search-btn { border-radius: 50px; width: 100%; }
            .search-input { margin-bottom: 0.5rem; }
            h1 { font-size: 2rem; }
            .article-content { padding: 1.5rem; }
        }