* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #0a1a2e;
            --secondary: #0078d4;
            --accent: #ff6a00;
            --light: #f0f2f5;
            --white: #ffffff;
            --text: #1a1a2e;
            --gray: #6c757d;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.75;
            color: var(--text);
            background: var(--white);
            max-width: 1440px;
            margin: 0 auto;
        }
        .site-header {
            background: linear-gradient(135deg, #0a1a2e, #001a2e);
            padding: 1rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--white);
            text-decoration: none;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo span {
            color: var(--accent);
        }
        .my-logo i {
            color: var(--accent);
            font-size: 2rem;
        }
        .nav-menu {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-menu a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0;
            transition: color 0.3s;
            border-bottom: 2px solid transparent;
        }
        .nav-menu a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 0.8rem 2rem;
            background: var(--light);
            font-size: 0.9rem;
            border-bottom: 1px solid #e0e0e0;
        }
        .breadcrumb a {
            color: var(--secondary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .separator {
            margin: 0 0.5rem;
            color: var(--gray);
        }
        .hero {
            background: linear-gradient(135deg, #0a1a2e 0%, #1a3a5e 100%);
            color: white;
            padding: 4rem 2rem;
            text-align: center;
        }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 800;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.95;
        }
        .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: white;
            padding: 0.4rem 1rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        .search-wrap {
            max-width: 600px;
            margin: 2rem auto 0;
            display: flex;
            background: white;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        .search-wrap input {
            flex: 1;
            border: none;
            padding: 1rem 1.5rem;
            font-size: 1rem;
            outline: none;
        }
        .search-wrap button {
            background: var(--accent);
            color: white;
            border: none;
            padding: 0 1.8rem;
            font-size: 1.2rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-wrap button:hover {
            background: #cc5500;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2rem;
            padding: 2rem;
            max-width: 1320px;
            margin: 0 auto;
        }
        .article-body {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .sidebar-widget {
            background: var(--light);
            border-radius: 12px;
            padding: 1.5rem;
            border: 1px solid #e8ecf0;
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }
        .sidebar-widget ul {
            list-style: none;
        }
        .sidebar-widget ul li {
            margin-bottom: 0.6rem;
        }
        .sidebar-widget ul li a {
            color: var(--secondary);
            text-decoration: none;
            font-size: 0.95rem;
        }
        .sidebar-widget ul li a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 2.5rem 0 1rem;
            padding-top: 1rem;
            border-top: 2px solid var(--light);
            color: var(--primary);
        }
        h2::before {
            content: "\f13b";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--accent);
            margin-right: 0.7rem;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 1.8rem 0 0.8rem;
            color: var(--primary);
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 1.2rem 0 0.5rem;
            color: var(--secondary);
        }
        p {
            margin-bottom: 1rem;
        }
        .featured-img {
            width: 100%;
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }
        .img-caption {
            font-size: 0.85rem;
            color: var(--gray);
            text-align: center;
            margin-top: 0.3rem;
        }
        ul,
        ol {
            margin: 1rem 0 1rem 2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        blockquote {
            border-left: 4px solid var(--accent);
            background: #fff8f0;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        table th,
        table td {
            padding: 0.8rem;
            border: 1px solid #dee2e6;
            text-align: left;
        }
        table th {
            background: var(--primary);
            color: white;
        }
        table tr:nth-child(even) {
            background: #f8f9fa;
        }
        .callout {
            background: #e8f4fd;
            border-left: 4px solid var(--secondary);
            padding: 1rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .callout-warning {
            background: #fff3cd;
            border-left-color: #ffc107;
        }
        .form-section {
            background: var(--light);
            border-radius: 12px;
            padding: 1.5rem;
            margin-top: 2rem;
            border: 1px solid #e8ecf0;
        }
        .form-section h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-family: inherit;
            font-size: 0.95rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-start;
            gap: 0.3rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating label:before {
            content: "\f005";
        }
        .star-rating input:checked~label {
            color: #ffc107;
        }
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #ffc107;
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.9);
            padding: 3rem 2rem 1rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-grid h4 {
            color: white;
            margin-bottom: 1rem;
            font-size: 1.1rem;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 0.5rem;
        }
        .footer-grid a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
        }
        .footer-grid a:hover {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        friend-link {
            display: block;
            padding: 1rem 0;
        }
        friend-link a {
            color: var(--accent);
            text-decoration: none;
            margin: 0 0.5rem;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 1rem 0;
                gap: 0.5rem;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .main-content {
                grid-template-columns: 1fr;
                padding: 1rem;
            }
            .article-body {
                padding: 1.5rem;
            }
            .hero {
                padding: 3rem 1rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .breadcrumb {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
                overflow-x: auto;
                white-space: nowrap;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.4rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .search-wrap {
                flex-direction: column;
                border-radius: 12px;
            }
            .search-wrap button {
                padding: 0.8rem;
                border-radius: 0;
            }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-in;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }