* { 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-color: #f9f9f9;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a { color: #3a86ff; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #2667cc; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5em; margin: 1em 0; }
        li { margin-bottom: 0.5em; }
        h1 { font-size: 2.8rem; color: #1a5fb4; margin-bottom: 1rem; line-height: 1.2; }
        h2 { font-size: 2.2rem; color: #1c71d8; margin: 2.5rem 0 1rem; border-bottom: 2px solid #e0e0e0; padding-bottom: 0.5rem; }
        h3 { font-size: 1.8rem; color: #2d7ad6; margin: 2rem 0 1rem; }
        h4 { font-size: 1.4rem; color: #4586d6; margin: 1.5rem 0 0.8rem; }
        p { margin-bottom: 1.5em; font-size: 1.1rem; }
        .lead { font-size: 1.3rem; font-weight: 300; color: #555; }
        .highlight { background-color: #fffacd; padding: 0.2em 0.4em; border-radius: 3px; }
        b, strong { font-weight: 700; color: #222; }
        i, em { font-style: italic; }
        .emoji { font-size: 1.2em; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 300px;
            gap: 40px;
            margin-top: 30px;
        }
        @media (max-width: 992px) {
            .main-grid { grid-template-columns: 1fr; }
        }
        .site-header {
            background: linear-gradient(135deg, #1a5fb4 0%, #2d7ad6 100%);
            color: white;
            padding: 1.5rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.5rem;
            font-weight: bold;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover { color: #ffcc00; }
        .my-logo i { font-size: 2rem; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: #ffcc00;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: 0.3s;
        }
        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background-color: #1a5fb4;
                flex-direction: column;
                padding: 2rem;
                transition: left 0.5s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active { left: 0; }
            .main-nav ul { flex-direction: column; gap: 1.5rem; }
            .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
            .hamburger.active span:nth-child(2) { opacity: 0; }
            .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #edf5ff;
            font-size: 0.95rem;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #1a5fb4; }
        .breadcrumb span { color: #888; }
        .content-card {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            margin-bottom: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border: 1px solid #eaeaea;
        }
        .featured-image {
            border-radius: 10px;
            overflow: hidden;
            margin: 2rem auto;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 5px solid #fff;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            margin-bottom: 2rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border: 1px solid #eaeaea;
        }
        .sidebar-widget h3 {
            font-size: 1.5rem;
            color: #1a5fb4;
            margin-top: 0;
            border-bottom: 2px solid #f0f0f0;
            padding-bottom: 0.7rem;
        }
        .related-links li { margin-bottom: 0.8rem; }
        .form-group { margin-bottom: 1.2rem; }
        .form-label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        .form-input, .form-textarea {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: #3a86ff;
            box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.2);
        }
        .form-textarea { min-height: 150px; resize: vertical; }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #3a86ff, #1a5fb4);
            color: white;
            padding: 0.9rem 2rem;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn:hover {
            background: linear-gradient(to right, #2667cc, #154b8c);
            transform: translateY(-2px);
            box-shadow: 0 5px 12px rgba(0,0,0,0.15);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .rating-stars input { display: none; }
        .rating-stars label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars input:checked ~ label,
        .rating-stars label:hover,
        .rating-stars label:hover ~ label { color: #ffcc00; }
        .site-footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-widget h4 {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            border-bottom: 1px solid #444;
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-3 { margin-top: 3rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }