* { 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: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            max-width: 1400px;
            margin: 0 auto;
            box-shadow: 0 0 40px rgba(0,0,0,0.05);
        }
        h1, h2, h3, h4 { font-family: 'Trebuchet MS', sans-serif; color: #1a365d; margin-bottom: 1rem; }
        h1 { font-size: 2.8rem; border-bottom: 4px solid #2d5aa0; padding-bottom: 15px; margin-top: 1.5rem; }
        h2 { font-size: 2.2rem; color: #2d5aa0; padding-left: 10px; border-left: 5px solid #f0b400; margin-top: 2.5rem; }
        h3 { font-size: 1.8rem; color: #3a506b; margin-top: 2rem; }
        h4 { font-size: 1.4rem; color: #555; margin-top: 1.5rem; }
        p { margin-bottom: 1.2rem; text-align: justify; }
        a { color: #2d5aa0; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #f0b400; text-decoration: underline; }
        strong { color: #1a365d; font-weight: 700; }
        em { font-style: italic; color: #666; }
        .container { width: 95%; max-width: 1200px; margin: 0 auto; padding: 0 15px; }
        header { background: linear-gradient(90deg, #1a365d 0%, #2d5aa0 100%); color: white; padding: 1rem 0; 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; letter-spacing: 1px; }
        .my-logo a { color: white; }
        .my-logo span { color: #f0b400; }
        .main-nav ul { display: flex; list-style: none; }
        .main-nav li { margin-left: 2rem; }
        .main-nav a { color: white; font-weight: 600; padding: 8px 12px; border-radius: 4px; }
        .main-nav a:hover { background: rgba(255,255,255,0.15); text-decoration: none; }
        .breadcrumb { background: #e9f2fb; padding: 12px 20px; margin: 10px 0; border-radius: 6px; font-size: 0.9rem; }
        .breadcrumb a { color: #2d5aa0; }
        .breadcrumb span { color: #666; }
        .hamburger { display: none; font-size: 1.8rem; background: none; border: none; color: white; cursor: pointer; }
        main { display: grid; grid-template-columns: 1fr 300px; gap: 30px; padding: 30px 0; }
        article { background: white; padding: 30px; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.08); }
        aside { background: white; padding: 25px; border-radius: 12px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); height: fit-content; }
        .intro { font-size: 1.2rem; background: #f0f7ff; padding: 20px; border-radius: 8px; margin-bottom: 30px; border-left: 5px solid #2d5aa0; }
        .highlight { background: linear-gradient(120deg, #fffbcc 0%, #fff 100%); padding: 20px; border-radius: 8px; border: 1px dashed #f0b400; margin: 25px 0; }
        .stats-box { background: #1a365d; color: white; padding: 20px; border-radius: 10px; margin: 25px 0; }
        .quote { font-style: italic; border-left: 4px solid #f0b400; padding-left: 20px; margin: 25px 0; color: #555; }
        .img-container { text-align: center; margin: 30px 0; }
        .article-img { max-width: 100%; height: auto; border-radius: 10px; box-shadow: 0 8px 20px rgba(0,0,0,0.15); transition: transform 0.5s; }
        .article-img:hover { transform: scale(1.01); }
        .caption { font-size: 0.9rem; color: #666; margin-top: 10px; }
        ul, ol { padding-left: 2rem; margin-bottom: 1.5rem; }
        li { margin-bottom: 0.7rem; }
        .module { background: #f8fafc; padding: 25px; border-radius: 10px; margin: 30px 0; border: 1px solid #e2e8f0; }
        .module h3 { margin-top: 0; }
        .form-group { margin-bottom: 20px; }
        .form-group label { display: block; margin-bottom: 8px; font-weight: 600; }
        .form-control { width: 100%; padding: 12px 15px; border: 1px solid #cbd5e0; border-radius: 6px; font-size: 1rem; }
        .btn { background: linear-gradient(to right, #2d5aa0, #1a365d); color: white; border: none; padding: 14px 28px; border-radius: 6px; font-weight: 600; cursor: pointer; transition: all 0.3s; }
        .btn:hover { background: linear-gradient(to right, #3a6bc5, #2d5aa0); transform: translateY(-2px); box-shadow: 0 5px 12px rgba(45, 90, 160, 0.3); }
        .stars { display: flex; gap: 8px; margin: 15px 0; }
        .star { font-size: 1.8rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #f0b400; }
        .sidebar-widget { margin-bottom: 30px; }
        .sidebar-widget h4 { border-bottom: 2px solid #e2e8f0; padding-bottom: 10px; }
        .link-list { list-style: none; padding-left: 0; }
        .link-list li { margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px dashed #e2e8f0; }
        .link-list a:before { content: "🎱 "; }
        footer { background: #1a365d; color: #cbd5e0; padding: 40px 0 20px; margin-top: 50px; }
        .footer-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
        .footer-section h4 { color: white; border-bottom: 2px solid #2d5aa0; padding-bottom: 10px; }
        friend-link { display: block; background: rgba(255,255,255,0.05); padding: 12px; border-radius: 6px; margin-bottom: 10px; transition: background 0.3s; }
        friend-link:hover { background: rgba(255,255,255,0.1); }
        .copyright { text-align: center; padding-top: 30px; margin-top: 30px; border-top: 1px solid #2d5aa0; font-size: 0.9rem; color: #94a3b8; }
        @media (max-width: 992px) {
            main { grid-template-columns: 1fr; }
            aside { order: -1; }
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .hamburger { display: block; }
            .main-nav { display: none; width: 100%; order: 3; margin-top: 15px; }
            .main-nav.active { display: block; }
            .main-nav ul { flex-direction: column; }
            .main-nav li { margin: 10px 0; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mt-3 { margin-top: 1.5rem; }
        .emoji { font-size: 1.2em; }
        .last-updated { background: #fff8e1; padding: 10px 15px; border-radius: 6px; display: inline-block; margin-bottom: 20px; font-size: 0.9rem; }