* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a { color: #2a5db0; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e63946; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1d2b64 0%, #2a5db0 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: bold;
            background: linear-gradient(to right, #f8c630, #ffdd00);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo a { color: inherit; }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e0e0e0;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active { color: #f8c630; }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #f8c630;
            transition: width 0.3s;
        }
        .main-nav a:hover::after { width: 100%; }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #6c757d;
        }
        .breadcrumb a { color: #495057; }
        .main-content {
            flex: 1;
            padding: 2rem 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        h1 { font-size: 2.8rem; color: #1d2b64; margin-bottom: 1.5rem; line-height: 1.2; }
        h2 { font-size: 2rem; color: #2a5db0; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid #e9ecef; }
        h3 { font-size: 1.6rem; color: #343a40; margin: 2rem 0 1rem; }
        h4 { font-size: 1.3rem; color: #495057; margin: 1.5rem 0 0.8rem; }
        p, li { margin-bottom: 1.2rem; color: #444; font-size: 1.05rem; }
        strong { color: #1d2b64; }
        .intro {
            font-size: 1.2rem;
            background: #e7f1ff;
            padding: 1.5rem;
            border-left: 5px solid #2a5db0;
            border-radius: 8px;
            margin-bottom: 2.5rem;
        }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem auto;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 3px solid #dee2e6;
        }
        ul, ol { padding-left: 2rem; margin-bottom: 1.5rem; }
        blockquote {
            font-style: italic;
            background: #f8f9fa;
            border-left: 4px solid #f8c630;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: #1d2b64;
            margin-top: 0;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid #f8c630;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        button, .btn {
            background: linear-gradient(to right, #2a5db0, #1d2b64);
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #e63946, #c1121f);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .related-links ul { list-style: none; padding-left: 0; }
        .related-links li { margin-bottom: 0.8rem; padding-left: 1.2rem; position: relative; }
        .related-links li::before {
            content: '▶';
            color: #f8c630;
            position: absolute;
            left: 0;
            font-size: 0.8rem;
        }
        .site-footer {
            background: #1a1a2e;
            color: #b0b7c3;
            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;
        }
        .footer-logo {
            font-family: 'Impact', sans-serif;
            font-size: 2rem;
            color: #f8c630;
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.5rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #8a94a6;
        }
        @media (max-width: 768px) {
            .mobile-menu-btn { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: #1d2b64;
                transition: left 0.4s;
                padding: 2rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
                z-index: 999;
            }
            .main-nav.active { left: 0; }
            .main-nav ul { flex-direction: column; gap: 1.5rem; }
            .header-top { padding: 0.5rem 0; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 1.5rem; }
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mt-3 { margin-top: 1.5rem; }
        .highlight { background-color: #fff3cd; padding: 0.2rem 0.4rem; border-radius: 4px; }
        .emoji { font-size: 1.2em; margin-right: 5px; }