* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
        :root {
            --primary: #2A5CAA; 
            --secondary: #FF9800; 
            --accent: #4CAF50; 
            --dark: #1A1A2E;
            --light: #F8F9FA;
            --gray: #6C757D;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        html { scroll-behavior: smooth; }
        body {
            background-color: var(--light);
            color: #333;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header { background: var(--dark); color: white; padding: 1rem 0; box-shadow: var(--shadow); position: sticky; top: 0; z-index: 1000; }
        .header-container { display: flex; justify-content: space-between; align-items: center; }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #FF9800, #FFEB3B);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }
        .my-logo a { background: transparent; }
        nav ul { display: flex; list-style: none; }
        nav li { margin-left: 2rem; }
        nav a { color: white; font-weight: 600; padding: 0.5rem 0; position: relative; }
        nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--secondary); transition: width 0.3s; }
        nav a:hover::after { width: 100%; }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a { color: var(--primary); }
        .breadcrumb span { margin: 0 8px; }
        main { flex: 1; padding: 2rem 0; }
        article { background: white; border-radius: 12px; padding: 2.5rem; box-shadow: var(--shadow); margin-bottom: 2rem; }
        h1 { color: var(--dark); font-size: 2.8rem; margin-bottom: 1.5rem; line-height: 1.2; border-left: 6px solid var(--secondary); padding-left: 1rem; }
        h2 { color: var(--primary); font-size: 2rem; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px dashed #eee; }
        h3 { color: var(--dark); font-size: 1.5rem; margin: 2rem 0 0.8rem; }
        h4 { color: var(--gray); font-size: 1.2rem; margin: 1.5rem 0 0.6rem; }
        p { margin-bottom: 1.2rem; text-align: justify; }
        strong { color: var(--dark); font-weight: 700; }
        em { color: var(--secondary); font-style: italic; }
        .highlight {
            background: linear-gradient(120deg, #ffeb3b30 0%, #ffeb3b30 100%);
            padding: 1.5rem;
            border-left: 4px solid var(--secondary);
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .img-container {
            margin: 2rem auto;
            text-align: center;
            max-width: 800px;
        }
        .img-container img {
            border-radius: 10px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s;
        }
        .img-container img:hover { transform: scale(1.02); }
        .caption { font-size: 0.9rem; color: var(--gray); margin-top: 0.5rem; font-style: italic; }
        .module {
            background: var(--light);
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
            border: 1px solid #dee2e6;
        }
        .module h3 { margin-top: 0; }
        form { display: grid; gap: 1rem; }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(42, 92, 170, 0.2); }
        button, .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-block;
            text-align: center;
        }
        button:hover, .btn:hover { background: var(--secondary); transform: translateY(-2px); box-shadow: 0 6px 12px rgba(255, 152, 0, 0.3); }
        .rating { display: flex; align-items: center; gap: 1rem; margin: 1rem 0; }
        .stars { color: #FFD700; font-size: 1.5rem; cursor: pointer; }
        .stars span { margin-right: 5px; }
        .stars span:hover, .stars span.active { color: #FF9800; }
        footer {
            background: var(--dark);
            color: #ccc;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #FF9800;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            nav { width: 100%; order: 3; margin-top: 1rem; display: none; }
            nav.active { display: block; }
            nav ul { flex-direction: column; }
            nav li { margin: 0; border-bottom: 1px solid #444; }
            nav a { display: block; padding: 0.8rem 0; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 1.5rem; }
            .footer-content { grid-template-columns: 1fr; }
        }
        .text-center { text-align: center; }
        .mt-3 { margin-top: 3rem; }
        .mb-3 { margin-bottom: 3rem; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .update-time { font-size: 0.9rem; color: var(--accent); font-weight: 600; background: #E8F5E9; padding: 0.3rem 0.8rem; border-radius: 20px; display: inline-block; }