* { 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: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2a7de1; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e63946; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
        .site-header {
            background: linear-gradient(90deg, #1d3557, #457b9d);
            color: white;
            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;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #a8dadc;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover { color: #f1faee; }
        .search-form {
            display: flex;
            background: white;
            border-radius: 30px;
            overflow: hidden;
            flex-grow: 0.4;
        }
        .search-input {
            flex-grow: 1;
            border: none;
            padding: 12px 20px;
            font-size: 1rem;
            outline: none;
        }
        .search-button {
            background: #e63946;
            color: white;
            border: none;
            padding: 12px 25px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-button:hover { background: #d62828; }
        .main-nav { background: #457b9d; }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li { position: relative; }
        .nav-links a {
            color: #f1faee;
            padding: 18px 20px;
            display: block;
            font-weight: 600;
            border-bottom: 3px solid transparent;
        }
        .nav-links a:hover,
        .nav-links a.active { background: rgba(241, 250, 238, 0.1); border-bottom-color: #a8dadc; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 10px;
        }
        .breadcrumb {
            padding: 15px 0;
            background: #f1faee;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #1d3557; }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: #6c757d; }
        main { flex: 1; padding: 40px 0; }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .article-grid { grid-template-columns: 1fr; }
        }
        article {
            background: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .article-meta {
            color: #6c757d;
            font-size: 0.9rem;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid #e9ecef;
        }
        h1 {
            font-size: 2.8rem;
            color: #1d3557;
            margin-bottom: 20px;
            line-height: 1.2;
            border-left: 5px solid #e63946;
            padding-left: 20px;
        }
        h2 {
            font-size: 2rem;
            color: #457b9d;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #a8dadc;
        }
        h3 {
            font-size: 1.6rem;
            color: #1d3557;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: #e63946;
            margin: 25px 0 12px;
        }
        p { margin-bottom: 1.5em; }
        strong { color: #1d3557; font-weight: 700; }
        em { font-style: italic; color: #555; }
        .lead {
            font-size: 1.3rem;
            color: #457b9d;
            font-weight: 500;
            margin-bottom: 2em;
        }
        .highlight-box {
            background: linear-gradient(120deg, #f0f9ff, #e6f7ff);
            border-left: 5px solid #2a7de1;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .figure-wrapper {
            margin: 40px 0;
            text-align: center;
        }
        figure {
            display: inline-block;
            max-width: 800px;
            background: #f8f9fa;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        figcaption {
            font-size: 0.95rem;
            color: #6c757d;
            margin-top: 10px;
            font-style: italic;
        }
        aside {
            background: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget { margin-bottom: 30px; }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: #e63946;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 1px solid #dee2e6;
        }
        .widget-links {
            list-style: none;
        }
        .widget-links li { margin-bottom: 10px; }
        .widget-links a {
            display: block;
            padding: 10px 15px;
            background: #f8f9fa;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .widget-links a:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }
        .interactive-section {
            background: #f8f9fa;
            border-radius: 15px;
            padding: 30px;
            margin-top: 50px;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }
        .form-group { margin-bottom: 20px; }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #1d3557;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #2a7de1;
            box-shadow: 0 0 0 3px rgba(42, 125, 225, 0.2);
        }
        textarea { min-height: 150px; resize: vertical; }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            font-size: 2rem;
            color: #ddd;
        }
        .star-rating input { display: none; }
        .star-rating label { cursor: pointer; padding: 0 5px; }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label { color: #ffc107; }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #e63946, #d62828);
            color: white;
            padding: 14px 30px;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(to right, #d62828, #c1121f);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(214, 40, 40, 0.25);
        }
        .btn:active { transform: translateY(-1px); }
        .site-footer {
            background: #1d3557;
            color: #f1faee;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #a8dadc;
            margin-bottom: 15px;
        }
        .footer-links h4 {
            color: #a8dadc;
            font-size: 1.2rem;
            margin-bottom: 20px;
        }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: #ccc; }
        .footer-links a:hover { color: #a8dadc; }
        friend-link {
            display: block;
            background: rgba(168, 218, 220, 0.1);
            border: 1px solid #457b9d;
            border-radius: 8px;
            padding: 15px;
            margin-top: 20px;
        }
        friend-link a {
            color: #a8dadc;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #457b9d;
            color: #8d99ae;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            article { padding: 25px; }
            .header-top { flex-direction: column; gap: 15px; }
            .search-form { width: 100%; }
            .hamburger { display: block; }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                position: absolute;
                top: 100%;
                left: 0;
                background: #457b9d;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .nav-links.active { display: flex; }
            .nav-links li { width: 100%; }
            .nav-links a { padding: 15px 20px; border-bottom: 1px solid rgba(255,255,255,0.1); }
        }