* { 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: #e0e0e0;
            background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #4dabf7; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #a5d8ff; text-shadow: 0 0 8px rgba(77, 171, 247, 0.7); }
        img { max-width: 100%; height: auto; display: block; }
        .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);
            border-bottom: 2px solid #4dabf7;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(90deg, #4dabf7, #ff6b6b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 5px rgba(0,0,0,0.3);
        }
        .my-logo:hover { transform: scale(1.03); }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 12px;
            border-radius: 5px;
        }
        nav a:hover {
            background-color: rgba(77, 171, 247, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #4dabf7;
            cursor: pointer;
            padding: 5px;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #aaa;
            background-color: rgba(30, 30, 46, 0.8);
            margin-bottom: 30px;
        }
        .breadcrumb a { color: #aaa; }
        .breadcrumb a:hover { color: #4dabf7; }
        .breadcrumb span { color: #4dabf7; }
        main {
            flex: 1;
            padding: 30px 0;
        }
        article {
            background-color: rgba(25, 25, 40, 0.8);
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            margin-bottom: 40px;
            border: 1px solid #333;
        }
        h1 {
            font-size: 3.2rem;
            color: #fff;
            margin-bottom: 25px;
            line-height: 1.2;
            text-align: center;
            border-bottom: 3px solid #4dabf7;
            padding-bottom: 20px;
        }
        h2 {
            font-size: 2.4rem;
            color: #4dabf7;
            margin-top: 50px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #444;
        }
        h3 {
            font-size: 1.8rem;
            color: #ffa94d;
            margin-top: 35px;
            margin-bottom: 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: #69db7c;
            margin-top: 25px;
            margin-bottom: 10px;
        }
        p {
            margin-bottom: 22px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            color: #ccc;
            background: rgba(50, 50, 80, 0.3);
            padding: 25px;
            border-left: 5px solid #ff6b6b;
            border-radius: 0 10px 10px 0;
            margin-bottom: 35px;
        }
        strong { color: #ffd8a8; font-weight: 700; }
        em { color: #b2f2bb; }
        blockquote {
            border-left: 4px solid #ffa94d;
            padding-left: 25px;
            margin: 30px 0;
            font-style: italic;
            color: #d0bfff;
            background: rgba(255, 169, 77, 0.05);
            padding: 20px;
            border-radius: 0 10px 10px 0;
        }
        ul, ol {
            margin-left: 30px;
            margin-bottom: 25px;
        }
        li { margin-bottom: 10px; }
        .featured-image {
            width: 80%;
            margin: 40px auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 15px 25px rgba(0,0,0,0.7);
            border: 3px solid #4dabf7;
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #aaa;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .module {
            background: rgba(40, 40, 60, 0.6);
            border-radius: 10px;
            padding: 25px;
            margin: 40px 0;
            border: 1px solid #555;
        }
        .module h3 { margin-top: 0; }
        form {
            display: grid;
            gap: 20px;
            margin-top: 20px;
        }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #555;
            background-color: rgba(20, 20, 35, 0.9);
            color: #e0e0e0;
            font-size: 1rem;
        }
        button {
            background: linear-gradient(90deg, #4dabf7, #228be6);
            color: white;
            border: none;
            padding: 16px 30px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            justify-self: start;
            min-width: 150px;
        }
        button:hover {
            background: linear-gradient(90deg, #228be6, #1c7ed6);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(34, 139, 230, 0.4);
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .star {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active { color: #ffd43b; }
        .related-links {
            background: rgba(50, 50, 80, 0.4);
            padding: 25px;
            border-radius: 10px;
            margin: 40px 0;
        }
        .related-links h3 { color: #ffa94d; }
        .related-links ul { list-style: none; margin-left: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 15px; }
        .related-links li { background: rgba(30, 30, 50, 0.7); padding: 15px; border-radius: 8px; border-left: 4px solid #4dabf7; }
        .related-links a { display: block; font-weight: 600; }
        footer {
            background-color: #0a0a14;
            border-top: 2px solid #333;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: #4dabf7;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-section ul { list-style: none; margin-left: 0; }
        .footer-section li { margin-bottom: 12px; }
        friend-link {
            display: block;
            padding: 12px 20px;
            background: rgba(77, 171, 247, 0.1);
            border-radius: 8px;
            margin-bottom: 10px;
            border: 1px dashed #4dabf7;
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid #333;
            color: #888;
            font-size: 0.9rem;
        }
        .update-time {
            color: #ffa94d;
            font-weight: bold;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.7rem; }
            h2 { font-size: 2.1rem; }
            .featured-image { width: 90%; }
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: rgba(15, 15, 25, 0.98);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 20px;
                border-top: 1px solid #333;
                gap: 15px;
            }
            nav ul.active { display: flex; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 25px; }
            .related-links ul { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            h1 { font-size: 1.9rem; }
            .intro { font-size: 1.1rem; padding: 20px; }
            .module { padding: 20px; }
            button { width: 100%; }
        }