* {
            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: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: #1a5fb4;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d4a9c;
        }
        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, #0d4a9c 0%, #1a5fb4 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-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -1px;
            color: white;
        }
        .my-logo span {
            color: #ffd166;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover, .main-nav a.active {
            border-bottom-color: #ffd166;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #6c757d;
        }
        .hero {
            text-align: center;
            padding: 3rem 1rem;
            background: linear-gradient(rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.98)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%23f1f3f4"/><path d="M0 0L100 100M100 0L0 100" stroke="%23d1d9e0" stroke-width="1"/></svg>');
        }
        .hero h1 {
            font-size: 3.2rem;
            color: #0d4a9c;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            color: #555;
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .search-bar {
            max-width: 600px;
            margin: 2rem auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        .search-bar input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
        }
        .search-bar button {
            background: #0d4a9c;
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-bar button:hover {
            background: #0a3d80;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
        }
        article > * + * {
            margin-top: 1.8rem;
        }
        article h2 {
            color: #1a5fb4;
            border-bottom: 3px solid #ffd166;
            padding-bottom: 0.7rem;
            margin-top: 2.5rem;
            font-size: 2rem;
        }
        article h3 {
            color: #2d3748;
            margin-top: 2rem;
            font-size: 1.6rem;
        }
        article h4 {
            color: #4a5568;
            margin-top: 1.5rem;
            font-size: 1.3rem;
        }
        article p {
            margin-bottom: 1.2rem;
            text-align: justify;
            hyphens: auto;
        }
        article strong {
            color: #0d4a9c;
            font-weight: 700;
        }
        article em {
            background-color: #fff9db;
            font-style: italic;
            padding: 0 0.2em;
        }
        .article-img {
            margin: 2.5rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            max-width: 800px;
        }
        .article-img figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.8rem;
            background: #f8f9fa;
        }
        .internal-links {
            background: #e8f4fd;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links h4 {
            margin-top: 0;
            color: #1a5fb4;
        }
        .internal-links ul {
            list-style: disc inside;
            padding-left: 1rem;
        }
        .internal-links li {
            margin-bottom: 0.5rem;
        }
        .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 {
            color: #1a5fb4;
            margin-bottom: 1.2rem;
            font-size: 1.4rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffd166;
        }
        .rating-stars {
            color: #ffc107;
            font-size: 1.5rem;
            margin: 1rem 0;
        }
        .rating-form label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .rating-form select,
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-family: inherit;
        }
        .rating-form button,
        .comment-form button {
            background: #0d4a9c;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
            width: 100%;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background: #0a3d80;
        }
        .update-time {
            font-size: 0.9rem;
            color: #6c757d;
            text-align: center;
            padding-top: 1rem;
            border-top: 1px dashed #dee2e6;
        }
        .site-footer {
            background: #2d3748;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        .footer-links a {
            color: #cbd5e0;
        }
        .footer-links a:hover {
            color: #ffd166;
        }
        friend-link {
            display: block;
            padding: 1rem;
            background: #4a5568;
            border-radius: 6px;
            margin-bottom: 0.7rem;
        }
        friend-link a {
            color: white;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a5568;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            .main-nav ul {
                position: fixed;
                top: 70px;
                right: -100%;
                flex-direction: column;
                background: #0d4a9c;
                width: 100%;
                text-align: center;
                padding: 2rem;
                transition: 0.3s;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                gap: 1.5rem;
            }
            .main-nav.active ul {
                right: 0;
            }
            .hamburger {
                display: block;
            }
            article {
                padding: 1.5rem;
            }
            .hero, .main-content {
                padding: 2rem 0;
            }
        }