* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0a1a2a;
            color: #e0e0e0;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: #00b4ff;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ffaa00;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(to bottom, #0a2a3d, #061320);
            padding: 1rem 0;
            border-bottom: 3px solid #ffaa00;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #ffaa00, #00b4ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.5);
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 1.8rem;
        }
        .main-nav a {
            color: #b0d0e8;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(0, 180, 255, 0.2);
            color: #00b4ff;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            background: none;
            border: none;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: #00b4ff;
            margin: 3px 0;
            border-radius: 2px;
            transition: 0.3s;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #8aa;
        }
        .breadcrumb a {
            color: #8aa;
        }
        .breadcrumb a:hover {
            color: #00b4ff;
        }
        .breadcrumb span {
            margin: 0 5px;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: rgba(10, 30, 50, 0.7);
            border-radius: 10px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            border: 1px solid #1a3a5a;
        }
        .sidebar {
            background: rgba(10, 30, 50, 0.7);
            border-radius: 10px;
            padding: 1.5rem;
            border: 1px solid #1a3a5a;
            align-self: start;
        }
        .sidebar h3 {
            color: #ffaa00;
            border-bottom: 2px solid #ffaa00;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            position: relative;
        }
        .sidebar li:before {
            content: "⚓";
            position: absolute;
            left: 0;
        }
        h1 {
            font-size: 3rem;
            color: #ffaa00;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 0 2px 5px rgba(0,0,0,0.7);
        }
        h2 {
            font-size: 2.2rem;
            color: #00b4ff;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #2a5a7a;
        }
        h3 {
            font-size: 1.8rem;
            color: #4dc3ff;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #80d4ff;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: bold;
            color: #b0d0e8;
            margin-bottom: 2rem;
            padding: 1rem;
            background: rgba(0, 100, 150, 0.2);
            border-left: 4px solid #00b4ff;
            border-radius: 0 5px 5px 0;
        }
        strong {
            color: #ffcc66;
        }
        em {
            color: #aaddff;
        }
        ul, ol {
            margin-bottom: 1.2rem;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        blockquote {
            border-left: 5px solid #ffaa00;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #ccddff;
            background: rgba(255, 170, 0, 0.05);
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .article-image {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            border: 3px solid #2a5a7a;
            box-shadow: 0 5px 15px rgba(0,0,0,0.5);
            max-width: 800px;
        }
        .article-image figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.8rem;
            background: rgba(20, 40, 60, 0.8);
            color: #aaccff;
            font-size: 0.9rem;
        }
        .interactive-module {
            background: rgba(15, 40, 70, 0.8);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2.5rem 0;
            border: 1px solid #2a6a9a;
        }
        .interactive-module h3 {
            margin-top: 0;
            color: #ffaa00;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            color: #b0d0e8;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            background-color: #0a2a3d;
            border: 1px solid #3a7a9a;
            border-radius: 5px;
            color: #e0e0e0;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #00b4ff;
            box-shadow: 0 0 8px rgba(0, 180, 255, 0.5);
        }
        button {
            background: linear-gradient(to right, #ffaa00, #ff7700);
            color: #000;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 5px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1rem;
        }
        button:hover {
            background: linear-gradient(to right, #ffbb33, #ff9900);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 170, 0, 0.4);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            font-size: 2rem;
            color: #444;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #444;
            margin-right: 5px;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffaa00;
        }
        .site-footer {
            background: #051220;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 3px solid #ffaa00;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
            margin-bottom: 2rem;
            padding-right: 2rem;
        }
        .footer-section h4 {
            color: #ffaa00;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 1rem 0;
        }
        .friend-link {
            background: rgba(0, 100, 150, 0.3);
            padding: 0.5rem 1rem;
            border-radius: 5px;
            border: 1px solid #2a5a7a;
            transition: all 0.3s;
        }
        .friend-link:hover {
            background: rgba(0, 150, 255, 0.3);
            border-color: #00b4ff;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2a5a7a;
            color: #8aa;
            font-size: 0.9rem;
            width: 100%;
        }
        .text-center {
            text-align: center;
        }
        .text-highlight {
            background-color: rgba(255, 170, 0, 0.2);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: bold;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #8aa;
            margin-bottom: 2rem;
            font-style: italic;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
            .article-content { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .main-nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                background: rgba(10, 40, 70, 0.95);
                border-radius: 10px;
                padding: 1rem;
            }
            .main-nav li {
                margin: 0.5rem 0;
            }
            .hamburger {
                display: flex;
            }
            .footer-section {
                flex: 100%;
                padding-right: 0;
            }
        }
        @media (max-width: 480px) {
            .article-content { padding: 1.5rem; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
        }