* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f8f9fa;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1d4ed8;
        }
        ul {
            list-style-position: inside;
            margin-left: 1em;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .page-header {
            background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
            color: white;
            padding: 1.5rem 1rem;
            border-bottom-left-radius: 20px;
            border-bottom-right-radius: 20px;
            margin-bottom: 2rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .my-logo {
            font-family: 'Courier New', monospace;
            font-size: 2.5rem;
            font-weight: 800;
            color: #fbbf24;
            text-shadow: 2px 2px 0 #1e3a8a;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #f59e0b;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .main-nav a {
            color: #e0f2fe;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            border: 2px solid transparent;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            border-color: #fbbf24;
        }
        .breadcrumb {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #bae6fd;
        }
        .breadcrumb a {
            color: #bae6fd;
        }
        .breadcrumb a:hover {
            color: white;
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto 3rem;
            padding: 1rem;
            background: white;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #cbd5e1;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
        }
        .search-input:focus {
            border-color: #2563eb;
        }
        .search-btn {
            background: #2563eb;
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background 0.3s ease;
        }
        .search-btn:hover {
            background: #1d4ed8;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }
        .main-article {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.06);
        }
        article h1 {
            font-size: 2.8rem;
            color: #1e3a8a;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #fbbf24;
            padding-bottom: 0.5rem;
        }
        article h2 {
            font-size: 2rem;
            color: #2563eb;
            margin: 2.5rem 0 1rem;
            padding-top: 1rem;
            border-top: 1px dashed #cbd5e1;
        }
        article h3 {
            font-size: 1.5rem;
            color: #374151;
            margin: 2rem 0 0.8rem;
        }
        article h4 {
            font-size: 1.2rem;
            color: #4b5563;
            margin: 1.5rem 0 0.5rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fef3c7;
            padding: 1.5rem;
            border-left: 5px solid #f59e0b;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
            font-style: italic;
        }
        .article-image {
            margin: 2rem auto;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        }
        .article-image figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: #6b7280;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .update-time {
            font-size: 0.9rem;
            color: #6b7280;
            text-align: right;
            margin-top: 3rem;
            padding-top: 1rem;
            border-top: 1px solid #e5e7eb;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .widget h3 {
            color: #1e3a8a;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #fbbf24;
            font-size: 1.3rem;
        }
        .rating-widget form, .comment-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
        }
        .rating-stars .active {
            color: #fbbf24;
        }
        .form-input, .form-textarea {
            padding: 0.8rem;
            border: 1px solid #cbd5e1;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .form-submit {
            background: #10b981;
            color: white;
            border: none;
            padding: 0.9rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .form-submit:hover {
            background: #0da271;
        }
        .related-links ul {
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted #e5e7eb;
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .related-links i {
            color: #10b981;
        }
        .page-footer {
            background: #1f2937;
            color: #f9fafb;
            padding: 2.5rem 1.5rem;
            border-top-left-radius: 20px;
            border-top-right-radius: 20px;
            margin-top: 3rem;
            text-align: center;
        }
        friend-link {
            display: block;
            margin: 1.5rem 0;
        }
        .friend-link-list {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        .friend-link-list a {
            color: #60a5fa;
            font-weight: 600;
            padding: 0.5rem 1rem;
            background: rgba(96, 165, 250, 0.1);
            border-radius: 6px;
        }
        .friend-link-list a:hover {
            background: rgba(96, 165, 250, 0.2);
            color: #93c5fd;
        }
        .copyright {
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid #374151;
            font-size: 0.9rem;
            color: #9ca3af;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .main-nav ul {
                gap: 1rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                text-align: center;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 1.5rem;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                background: rgba(30, 58, 138, 0.95);
                border-radius: 10px;
                padding: 1rem;
            }
            .main-nav.active ul {
                display: flex;
            }
            .main-nav a {
                display: block;
                text-align: center;
                padding: 0.8rem;
            }
            .main-article {
                padding: 1.8rem;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.7rem;
            }
        }