:root {
            --primary-dark: #1a1a2e;
            --secondary-dark: #16213e;
            --accent-blue: #0f4c75;
            --accent-teal: #00adb5;
            --text-light: #eeeeee;
            --text-gray: #b0b0b0;
            --highlight-yellow: #ffd369;
            --card-bg: rgba(255, 255, 255, 0.05);
            --border-radius: 12px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            --transition: all 0.3s ease;
        }
        * {
            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: var(--text-light);
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
            min-height: 100vh;
            padding-top: 80px;
        }
        a {
            color: var(--accent-teal);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--highlight-yellow);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(10, 10, 20, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 173, 181, 0.2);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--accent-teal), var(--highlight-yellow));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -1px;
        }
        .my-logo:hover {
            text-decoration: none;
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.05rem;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 0;
            background-color: var(--highlight-yellow);
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--text-light);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--secondary-dark);
            padding: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-weight: 600;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--text-gray);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--text-gray);
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        .search-container {
            background-color: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 25px;
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px;
            border: 2px solid rgba(0, 173, 181, 0.3);
            border-radius: 50px;
            background-color: rgba(0, 0, 0, 0.3);
            color: var(--text-light);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--accent-teal);
            box-shadow: 0 0 0 3px rgba(0, 173, 181, 0.2);
        }
        .search-button {
            padding: 0 30px;
            background: linear-gradient(to right, var(--accent-teal), var(--accent-blue));
            color: white;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 173, 181, 0.4);
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-bottom: 50px;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            color: var(--highlight-yellow);
        }
        h2 {
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(0, 173, 181, 0.5);
            color: var(--accent-teal);
        }
        h3 {
            font-size: 1.5rem;
            margin: 30px 0 15px;
            color: var(--text-light);
        }
        h4 {
            font-size: 1.2rem;
            margin: 25px 0 10px;
            color: var(--text-gray);
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--highlight-yellow);
            margin-bottom: 30px;
            line-height: 1.5;
        }
        .highlight {
            background-color: rgba(255, 211, 105, 0.1);
            border-left: 4px solid var(--highlight-yellow);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .info-box {
            background-color: rgba(15, 76, 117, 0.2);
            border: 1px solid var(--accent-blue);
            border-radius: var(--border-radius);
            padding: 25px;
            margin: 25px 0;
        }
        .gem-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .gem-card {
            background-color: rgba(255, 255, 255, 0.03);
            border-radius: var(--border-radius);
            padding: 20px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .gem-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-teal);
            box-shadow: var(--shadow);
        }
        .gem-icon {
            font-size: 2.5rem;
            color: var(--highlight-yellow);
            margin-bottom: 15px;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 25px 0;
            box-shadow: var(--shadow);
            border: 2px solid rgba(255, 255, 255, 0.1);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-gray);
            margin-top: -15px;
            margin-bottom: 25px;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        strong {
            color: var(--highlight-yellow);
            font-weight: 700;
        }
        em {
            color: var(--accent-teal);
            font-style: italic;
        }
        blockquote {
            border-left: 4px solid var(--accent-teal);
            padding-left: 20px;
            margin: 30px 0;
            font-style: italic;
            color: var(--text-gray);
        }
        sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--highlight-yellow);
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .related-links li {
            margin-bottom: 15px;
            padding-left: 10px;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }
        .related-links li:hover {
            border-left-color: var(--accent-teal);
            padding-left: 15px;
        }
        .update-time {
            font-size: 0.9rem;
            color: var(--text-gray);
            text-align: center;
            padding-top: 15px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .user-interaction {
            background-color: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 30px;
            margin-top: 40px;
            box-shadow: var(--shadow);
        }
        .interaction-title {
            font-size: 1.5rem;
            margin-bottom: 25px;
            color: var(--highlight-yellow);
            text-align: center;
        }
        .rating-container {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        .star {
            font-size: 2rem;
            color: var(--text-gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--highlight-yellow);
            transform: scale(1.1);
        }
        .comment-form,
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-label {
            font-weight: 600;
        }
        .form-input,
        .form-textarea {
            padding: 15px;
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.1);
            background-color: rgba(0, 0, 0, 0.3);
            color: var(--text-light);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--accent-teal);
            box-shadow: 0 0 0 3px rgba(0, 173, 181, 0.2);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            padding: 15px 30px;
            background: linear-gradient(to right, var(--accent-teal), var(--accent-blue));
            color: white;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 20px rgba(0, 173, 181, 0.4);
        }
        footer {
            background-color: rgba(5, 5, 15, 0.98);
            padding: 50px 0 30px;
            margin-top: 50px;
            border-top: 1px solid rgba(0, 173, 181, 0.3);
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
        }
        .footer-section h4 {
            color: var(--accent-teal);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-section ul li {
            margin-bottom: 12px;
            list-style: none;
        }
        friend-link {
            display: block;
            padding: 12px 20px;
            background-color: rgba(255, 255, 255, 0.03);
            border-radius: 8px;
            margin-bottom: 10px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        friend-link:hover {
            border-color: var(--accent-teal);
            background-color: rgba(0, 173, 181, 0.05);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-gray);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 15px;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .article-content,
            .sidebar-widget,
            .user-interaction {
                padding: 25px 20px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-button {
                width: 100%;
                padding: 15px;
            }
        }
        @media (max-width: 480px) {
            body {
                padding-top: 70px;
            }
            h1 {
                font-size: 1.9rem;
            }
            .my-logo {
                font-size: 1.8rem;
            }
            .gem-grid {
                grid-template-columns: 1fr;
            }
        }