:root {
            --primary: #1a1a2e;
            --secondary: #16213e;
            --accent: #0f4c75;
            --highlight: #00adb5;
            --text: #eeeeee;
            --text-secondary: #b0b0b0;
            --card-bg: rgba(30, 30, 46, 0.9);
            --border: rgba(100, 100, 150, 0.3);
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            --transition: all 0.3s ease;
            --radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text);
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            min-height: 100vh;
            padding-top: 80px;
        }
        a {
            color: var(--highlight);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #fff;
            text-shadow: 0 0 8px rgba(0, 173, 181, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(22, 33, 62, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--highlight) 0%, #fff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -1px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        nav {
            display: flex;
            gap: 30px;
        }
        nav a {
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 6px;
        }
        nav a:hover {
            background: rgba(0, 173, 181, 0.1);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: transparent;
            border: none;
            padding: 10px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--highlight);
            border-radius: 2px;
            transition: var(--transition);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 15px;
            background: var(--secondary);
            padding: 20px;
            border-radius: var(--radius);
            margin-top: 20px;
        }
        .search-container {
            margin: 30px 0;
            max-width: 600px;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid var(--border);
            border-radius: 50px;
            background: var(--card-bg);
            color: var(--text);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--highlight);
            box-shadow: 0 0 15px rgba(0, 173, 181, 0.3);
        }
        .search-btn {
            padding: 15px 30px;
            background: linear-gradient(90deg, var(--accent) 0%, var(--highlight) 100%);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 20px rgba(0, 173, 181, 0.4);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--highlight);
        }
        main {
            padding: 40px 0;
        }
        article {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 40px;
            margin-bottom: 40px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: #fff;
            line-height: 1.3;
            background: linear-gradient(90deg, #fff 0%, var(--highlight) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        h2 {
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
            color: #fff;
        }
        h3 {
            font-size: 1.6rem;
            margin: 30px 0 15px;
            color: var(--highlight);
        }
        h4 {
            font-size: 1.3rem;
            margin: 25px 0 10px;
            color: #fff;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: var(--text);
            margin-bottom: 30px;
            line-height: 1.7;
        }
        .highlight {
            background: rgba(0, 173, 181, 0.1);
            padding: 20px;
            border-left: 4px solid var(--highlight);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 25px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: rgba(15, 76, 117, 0.2);
            padding: 25px;
            border-radius: var(--radius);
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--highlight);
            display: block;
            margin-bottom: 10px;
        }
        .image-container {
            margin: 40px 0;
            position: relative;
            overflow: hidden;
            border-radius: var(--radius);
        }
        .image-container img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .image-container:hover img {
            transform: scale(1.02);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-secondary);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            margin-top: 40px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .related-links {
            background: var(--secondary);
            padding: 25px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }
        .related-links h3 {
            margin-top: 0;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .updated-time {
            text-align: right;
            font-style: italic;
            color: var(--text-secondary);
            margin: 30px 0;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .user-interaction {
            margin: 60px 0;
            padding: 40px;
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }
        .rating-container {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 40px;
        }
        .rating-form, .comment-form {
            flex: 1;
            min-width: 300px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 15px;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            background: var(--secondary);
            color: var(--text);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--highlight);
            box-shadow: 0 0 15px rgba(0, 173, 181, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            margin-bottom: 15px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: #ffc107;
        }
        .btn-submit {
            padding: 15px 40px;
            background: linear-gradient(90deg, var(--accent) 0%, var(--highlight) 100%);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-submit:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 173, 181, 0.4);
        }
        friend-link {
            display: block;
            background: var(--secondary);
            padding: 30px;
            border-radius: var(--radius);
            margin: 40px 0;
            border: 1px solid var(--border);
        }
        friend-link h2 {
            margin-top: 0;
        }
        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 20px;
        }
        .friend-links-list a {
            background: rgba(0, 173, 181, 0.1);
            padding: 10px 20px;
            border-radius: 50px;
            border: 1px solid rgba(0, 173, 181, 0.3);
        }
        .friend-links-list a:hover {
            background: rgba(0, 173, 181, 0.2);
            transform: translateY(-3px);
        }
        footer {
            background: rgba(10, 15, 35, 0.95);
            padding: 50px 0 30px;
            margin-top: 60px;
            border-top: 1px solid var(--border);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            .mobile-nav.active {
                display: flex;
            }
            article {
                padding: 25px;
            }
            .user-interaction {
                padding: 25px;
            }
        }