* { 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, #0a1a2d 0%, #1a2b3e 100%);
            color: #e8f1f5;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #4fc3f7; text-decoration: none; transition: color 0.3s, transform 0.2s; }
        a:hover { color: #29b6f6; transform: translateY(-1px); }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(10, 25, 47, 0.95);
            border-bottom: 2px solid #1e88e5;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #1e88e5, #00bcd4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.5px;
        }
        .logo a { background: none; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
        }
        .main-nav a:hover {
            background: rgba(30, 136, 229, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #4fc3f7;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #a0c5e8;
        }
        .breadcrumb a { margin: 0 5px; }
        .breadcrumb a:first-child { margin-left: 0; }
        .search-section {
            background: rgba(25, 45, 70, 0.7);
            padding: 1.5rem;
            border-radius: 12px;
            margin: 1.5rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            background: #1c3048;
            color: #fff;
            font-size: 1rem;
        }
        .search-btn {
            background: linear-gradient(90deg, #1e88e5, #00bcd4);
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0 25px;
            cursor: pointer;
            font-weight: bold;
            transition: opacity 0.3s;
        }
        .search-btn:hover { opacity: 0.9; }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background: rgba(15, 30, 50, 0.7);
            border-radius: 16px;
            padding: 2.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            border: 1px solid #2a4365;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            background: linear-gradient(90deg, #fff, #4fc3f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #29b6f6;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #1e88e5;
        }
        h3 {
            font-size: 1.5rem;
            color: #81d4fa;
            margin: 1.8rem 0 1rem;
        }
        p {
            margin-bottom: 1.3rem;
            font-size: 1.1rem;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(30, 136, 229, 0.2), transparent);
            border-left: 4px solid #1e88e5;
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .table-container {
            overflow-x: auto;
            margin: 2rem 0;
            border-radius: 10px;
            border: 1px solid #2a4365;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
        }
        thead {
            background: linear-gradient(90deg, #1a237e, #0d47a1);
        }
        th, td {
            padding: 1rem;
            text-align: center;
            border-bottom: 1px solid #2a4365;
        }
        tbody tr:nth-child(even) {
            background: rgba(30, 136, 229, 0.05);
        }
        tbody tr:hover {
            background: rgba(30, 136, 229, 0.15);
        }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .featured-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem auto;
            border: 3px solid #1e88e5;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
        }
        .interactive-module {
            background: rgba(20, 40, 70, 0.8);
            border-radius: 12px;
            padding: 2rem;
            margin: 3rem 0;
            border: 1px solid #00bcd4;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #00bcd4;
            margin-bottom: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .rating-stars i {
            color: #ffcc00;
            cursor: pointer;
            font-size: 1.5rem;
            transition: transform 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        textarea, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border-radius: 8px;
            border: 1px solid #2a4365;
            background: #1c3048;
            color: #fff;
            font-size: 1rem;
        }
        .submit-btn {
            background: linear-gradient(90deg, #00c853, #64dd17);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 30px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            display: inline-block;
            margin-top: 10px;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(100, 221, 23, 0.4);
        }
        .longtail-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2.5rem 0;
        }
        .web-link {
            background: rgba(30, 136, 229, 0.1);
            padding: 1rem;
            border-radius: 8px;
            border-left: 4px solid #00bcd4;
            transition: background 0.3s;
        }
        .web-link:hover {
            background: rgba(30, 136, 229, 0.25);
        }
        footer {
            background: #0a1a2d;
            border-top: 2px solid #1e88e5;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .copyright {
            color: #a0c5e8;
            font-size: 0.9rem;
            margin-top: 1rem;
            border-top: 1px solid #2a4365;
            padding-top: 1rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .header-container { flex-direction: column; align-items: flex-start; }
            .main-nav { width: 100%; margin-top: 1rem; display: none; }
            .main-nav.active { display: block; }
            .main-nav ul { flex-direction: column; gap: 0.5rem; }
            .hamburger { display: block; align-self: flex-end; margin-top: -3rem; }
            article { padding: 1.8rem; }
        }
        @media (max-width: 768px) {
            .container { padding: 0 15px; }
            h1 { font-size: 2rem; }
            .logo { font-size: 1.8rem; }
            .interactive-module { padding: 1.5rem; }
            .longtail-links { grid-template-columns: 1fr; }
            .search-form { flex-direction: column; }
            .search-input, .search-btn { border-radius: 30px; margin: 5px 0; }
        }