* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0a0e2a;
            color: #e8e8e8;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #29b6f6;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #001f3f 0%, #003366 100%);
            padding: 1rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, #ffcc00, #ff9900);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
        }
        .logo a:hover {
            transform: scale(1.05);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 6px;
        }
        .desktop-nav a:hover {
            background-color: rgba(255, 204, 0, 0.15);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffcc00;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #00264d;
            padding: 1rem;
            border-radius: 0 0 10px 10px;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            font-weight: 600;
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: rgba(255,255,255,0.05);
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #ffcc00;
        }
        .breadcrumb span {
            color: #aaa;
            margin: 0 0.5rem;
        }
        main {
            padding: 2rem 0;
            min-height: 150vh;
        }
        article {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            margin-bottom: 2rem;
            backdrop-filter: blur(10px);
        }
        h1, h2, h3, h4 {
            color: #ffcc00;
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 3rem;
            text-align: center;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 1rem;
            margin-top: 0;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid #4fc3f7;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #29b6f6;
        }
        h4 {
            font-size: 1.4rem;
            color: #80deea;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(255, 204, 0, 0.1);
            border-left: 4px solid #ffcc00;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .figure-wrapper {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .figure-wrapper img {
            box-shadow: 0 5px 20px rgba(0,0,0,0.7);
            transition: transform 0.5s ease;
        }
        .figure-wrapper img:hover {
            transform: scale(1.02);
        }
        .figure-wrapper figcaption {
            font-style: italic;
            margin-top: 0.5rem;
            color: #aaa;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .keywords {
            display: inline-block;
            background: rgba(41, 182, 246, 0.2);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-weight: bold;
            margin: 0.2rem;
            font-size: 0.9rem;
        }
        .interactive-section {
            background: rgba(0, 40, 85, 0.7);
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        .feature-box {
            background: rgba(255, 255, 255, 0.08);
            padding: 1.5rem;
            border-radius: 10px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 25px rgba(0, 0, 0, 0.4);
        }
        .feature-box h3 {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .feature-box form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .feature-box input, .feature-box textarea, .feature-box select {
            padding: 0.8rem;
            border-radius: 6px;
            border: 1px solid #4fc3f7;
            background-color: rgba(255,255,255,0.1);
            color: white;
            font-size: 1rem;
        }
        .feature-box button {
            background: linear-gradient(to right, #ff9800, #ff5722);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .feature-box button:hover {
            background: linear-gradient(to right, #ff5722, #ff9800);
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            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;
        }
        .longtail-links {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.5rem;
            margin: 3rem 0;
            padding: 2rem;
            background-color: rgba(0, 30, 60, 0.8);
            border-radius: 15px;
        }
        @media (max-width: 992px) {
            .longtail-links {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 576px) {
            .longtail-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255, 204, 0, 0.15);
            transform: translateX(5px);
        }
        .web-link a {
            display: block;
            font-weight: 600;
        }
        footer {
            background-color: #001122;
            padding: 3rem 0 1.5rem;
            text-align: center;
            border-top: 2px solid #ffcc00;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2rem;
        }
        .copyright {
            color: #aaa;
            font-size: 0.9rem;
            margin-top: 1rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 1rem;
            width: 100%;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .desktop-nav { display: none; }
            .mobile-toggle { display: block; }
            .header-container { padding: 0 1rem; }
            article { padding: 1.5rem; }
            .interactive-section { grid-template-columns: 1fr; padding: 1.5rem; }
        }