* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #0a2e38 0%, #1a1a2e 100%);
            color: #f0f0f0;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #29b6f6;
            transform: translateY(-1px);
        }
        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, 25, 47, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #00bcd4;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #00bcd4, #4fc3f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }
        .logo a {
            background: none;
            -webkit-text-fill-color: unset;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: #e0e0e0;
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #00bcd4;
            border-bottom-color: #00bcd4;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #00bcd4;
            cursor: pointer;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.05);
            padding: 12px 0;
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: #4fc3f7;
        }
        main {
            flex: 1;
            padding: 30px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 40px;
            padding: 20px;
            background: rgba(0, 188, 212, 0.1);
            border-radius: 12px;
            border-left: 5px solid #00bcd4;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 15px;
            color: #ffffff;
            line-height: 1.2;
        }
        .article-meta {
            color: #b0bec5;
            font-style: italic;
        }
        .article-content {
            background: rgba(30, 40, 60, 0.7);
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            margin-bottom: 40px;
        }
        h2, h3, h4 {
            color: #4fc3f7;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 2rem;
            border-bottom: 2px dashed #00bcd4;
            padding-bottom: 8px;
        }
        h3 {
            font-size: 1.6rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background: rgba(0, 188, 212, 0.15);
            border-left: 4px solid #00bcd4;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .key-term {
            font-weight: bold;
            color: #00bcd4;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: rgba(41, 182, 246, 0.1);
            padding: 20px;
            border-radius: 10px;
            text-align: center;
            border: 1px solid #29b6f6;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: bold;
            color: #00e5ff;
        }
        .interactive-section {
            background: rgba(25, 35, 55, 0.8);
            border-radius: 12px;
            padding: 30px;
            margin: 40px 0;
            border: 1px solid #3949ab;
        }
        .interactive-section h3 {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 600px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        label {
            font-weight: 600;
            color: #bbdefb;
        }
        input, textarea, select {
            padding: 12px 15px;
            border-radius: 8px;
            border: 1px solid #5c6bc0;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #00bcd4;
            box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.3);
        }
        button {
            padding: 14px 25px;
            background: linear-gradient(90deg, #00bcd4, #2962ff);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            align-self: flex-start;
        }
        button:hover {
            background: linear-gradient(90deg, #00acc1, #1a237e);
            transform: scale(1.03);
            box-shadow: 0 5px 15px rgba(0, 188, 212, 0.4);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ffeb3b;
            margin: 10px 0;
        }
        .star-rating i {
            cursor: pointer;
            transition: color 0.2s, transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .featured-image {
            margin: 40px auto;
            text-align: center;
            max-width: 800px;
        }
        .featured-image img {
            border-radius: 12px;
            border: 3px solid #00bcd4;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
        }
        .img-caption {
            font-style: italic;
            color: #b0bec5;
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 40px 0;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #444;
            transition: all 0.3s;
        }
        .web-link:hover {
            background: rgba(0, 188, 212, 0.1);
            border-color: #00bcd4;
            transform: translateY(-3px);
        }
        .site-footer {
            background: #0a1929;
            padding: 50px 0 20px;
            margin-top: 60px;
            border-top: 3px solid #00bcd4;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: #4fc3f7;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a3a5a;
            color: #90a4ae;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            .article-content { padding: 30px; }
            .stats-box { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: rgba(10, 25, 47, 0.98);
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease-in-out;
                padding: 20px;
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
            }
            .main-nav ul {
                flex-direction: column;
                gap: 20px;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .stats-box { grid-template-columns: 1fr; }
            .web-links { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .article-content { padding: 20px; }
            .container { padding: 0 15px; }
            button { width: 100%; align-self: stretch; }
        }