* { 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: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #6a11cb; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #2575fc; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 2rem; margin: 1rem 0; }
        li { margin-bottom: 0.5rem; }
        h1, h2, h3, h4, .lead, p, blockquote { margin-bottom: 1.5rem; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); color: #2d3436; line-height: 1.2; border-bottom: 4px solid #6a11cb; padding-bottom: 1rem; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); color: #2575fc; margin-top: 3rem; padding-bottom: 0.5rem; border-bottom: 2px dashed #dfe6e9; }
        h3 { font-size: 1.6rem; color: #0984e3; margin-top: 2rem; }
        h4 { font-size: 1.3rem; color: #00b894; margin-top: 1.5rem; }
        .lead {
            font-size: 1.4rem;
            color: #636e72;
            font-weight: 300;
            padding: 1.5rem;
            background: #fff;
            border-left: 5px solid #fd79a8;
            border-radius: 0 8px 8px 0;
        }
        p { font-size: 1.1rem; }
        blockquote {
            font-style: italic;
            color: #555;
            padding: 1.5rem 2rem;
            background: linear-gradient(to right, #ffffff, #f8f9fa);
            border-left: 8px solid #00b894;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .highlight { background-color: #fffacd; padding: 0.2rem 0.5rem; border-radius: 3px; }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        main.container { flex: 1; padding-top: 2rem; padding-bottom: 4rem; }
        header {
            background: linear-gradient(90deg, #2d3436 0%, #1a1e1f 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(to right, #6a11cb, #2575fc);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { color: #fd79a8; }
        nav { display: flex; align-items: center; }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: #dfe6e9;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-links a:hover, .nav-links a.active {
            background: rgba(106, 17, 203, 0.7);
            color: white;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.95rem;
            color: #636e72;
            background: #f8f9fa;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a { color: #6a11cb; }
        .breadcrumb span { color: #777; }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            padding: 1.5rem 0;
            border-bottom: 1px solid #dee2e6;
            color: #636e72;
            font-size: 0.95rem;
        }
        .update-time { color: #00b894; font-weight: bold; }
        .featured-img {
            margin: 3rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            max-width: 900px;
        }
        .featured-img figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.8rem;
            background: #f8f9fa;
            color: #555;
        }
        .content-section {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.06);
            margin: 2rem 0;
        }
        .link-box {
            background: #e3f2fd;
            border-left: 5px solid #2196f3;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .link-box h4 { margin-top: 0; color: #0d47a1; }
        .interactive-module {
            background: linear-gradient(145deg, #ffffff, #f0f2f5);
            border: 1px solid #ddd;
            border-radius: 12px;
            padding: 2.5rem;
            margin: 3rem 0;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
        }
        .module-title { color: #2d3436; margin-bottom: 1.8rem; display: flex; align-items: center; gap: 10px; }
        .form-group { margin-bottom: 1.5rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: #444; }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 2px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s, box-shadow 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #6a11cb;
            box-shadow: 0 0 0 3px rgba(106, 17, 203, 0.2);
        }
        textarea { min-height: 150px; resize: vertical; }
        .btn {
            display: inline-block;
            padding: 0.9rem 2.2rem;
            background: linear-gradient(to right, #6a11cb, #2575fc);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(106, 17, 203, 0.3);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 18px rgba(106, 17, 203, 0.4);
            text-decoration: none;
            color: white;
        }
        .rating { display: flex; gap: 0.5rem; font-size: 2rem; color: #ffd700; margin: 1rem 0; }
        .rating i { cursor: pointer; transition: transform 0.2s; }
        .rating i:hover { transform: scale(1.2); }
        footer {
            background: #2d3436;
            color: #dfe6e9;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo { font-size: 2rem; font-weight: 800; color: #6a11cb; margin-bottom: 1rem; }
        .footer-links h3 { color: #fd79a8; margin-bottom: 1.5rem; font-size: 1.3rem; }
        .footer-links ul { list-style: none; padding: 0; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #b2bec3; }
        .footer-links a:hover { color: #6a11cb; }
        friend-link {
            display: block;
            padding: 1rem;
            background: rgba(255,255,255,0.05);
            border-radius: 6px;
            margin-bottom: 0.8rem;
            text-align: center;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .nav-links {
                position: fixed;
                top: 70px;
                right: -100%;
                flex-direction: column;
                background: #2d3436;
                width: 280px;
                height: calc(100vh - 70px);
                padding: 2rem;
                transition: right 0.4s ease;
                box-shadow: -5px 0 15px rgba(0,0,0,0.1);
            }
            .nav-links.active { right: 0; }
            .hamburger { display: block; }
            .content-section { padding: 1.8rem; }
            .interactive-module { padding: 2rem; }
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
        }
        @media (max-width: 576px) {
            .header-container, .article-meta { flex-direction: column; align-items: flex-start; }
            .article-meta { gap: 0.5rem; }
            .container { padding: 0 1rem; }
            .btn { width: 100%; text-align: center; }
        }