* {
            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: 100%;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1a73e8;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
        }
        ul, ol {
            padding-left: 2rem;
            margin-bottom: 1.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .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);
            white-space: nowrap;
            border: 0;
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            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: 1rem 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #ffcc00;
            text-shadow: 2px 2px 0 #1a237e;
            letter-spacing: 1px;
        }
        .my-logo a {
            color: inherit;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
            padding: 0;
            margin: 0;
        }
        nav a {
            color: #e3f2fd;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        nav a:hover, nav a:focus {
            background-color: rgba(255, 255, 255, 0.15);
            color: #ffcc00;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e8eaf6;
            font-size: 0.9rem;
            color: #5f6368;
        }
        .breadcrumb a {
            color: #5f6368;
        }
        .breadcrumb a:hover {
            color: #1a73e8;
        }
        .breadcrumb i {
            margin: 0 0.5rem;
        }
        main {
            padding: 2rem 0;
            background: white;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
            min-height: 80vh;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            padding-right: 1rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #283593;
            margin: 3rem 0 1.5rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }
        h3 {
            font-size: 1.8rem;
            color: #3949ab;
            margin: 2.5rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #5c6bc0;
            margin: 2rem 0 1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
            margin-bottom: 2rem;
            padding: 1rem;
            background-color: #f3f4fd;
            border-left: 5px solid #1a73e8;
        }
        .highlight-box {
            background: linear-gradient(to right, #e3f2fd, #f3e5f5);
            padding: 2rem;
            border-radius: 10px;
            margin: 2.5rem 0;
            border-left: 6px solid #7e57c2;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .feature-img {
            width: 100%;
            margin: 2.5rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        .feature-img figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.8rem;
            background-color: #f9f9f9;
        }
        .internal-links {
            background-color: #f1f8e9;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .internal-links h3 {
            margin-top: 0;
            color: #33691e;
        }
        .internal-links ul {
            columns: 2;
            gap: 2rem;
        }
        .internal-links li {
            margin-bottom: 0.8rem;
            break-inside: avoid;
        }
        @media (max-width: 768px) {
            .internal-links ul {
                columns: 1;
            }
        }
        aside {
            background-color: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: inset 0 0 10px rgba(0,0,0,0.05);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget h3 {
            font-size: 1.4rem;
            color: #1a237e;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        .search-form input[type="text"] {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            margin-bottom: 1rem;
        }
        .search-form button {
            width: 100%;
            padding: 0.9rem;
            background: linear-gradient(to right, #1a237e, #283593);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .search-form button:hover {
            background: linear-gradient(to right, #283593, #3949ab);
            transform: translateY(-2px);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #ffc107;
            margin-bottom: 1rem;
            cursor: pointer;
        }
        .stars i {
            margin: 0 2px;
            transition: transform 0.2s;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .update-time {
            font-size: 0.9rem;
            color: #666;
            background-color: #fff8e1;
            padding: 1rem;
            border-radius: 6px;
            border-left: 4px solid #ffb300;
        }
        .update-time i {
            margin-right: 0.5rem;
            color: #ff8f00;
        }
        .comment-section {
            margin-top: 4rem;
            padding-top: 2rem;
            border-top: 2px solid #eee;
        }
        .comment-form {
            background-color: #f3f4fd;
            padding: 2rem;
            border-radius: 10px;
            margin-bottom: 3rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(to right, #00c853, #64dd17);
            color: white;
            padding: 1rem 2rem;
            border: none;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #00e676, #76ff03);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 200, 83, 0.3);
        }
        footer {
            background: #1a237e;
            color: #e3f2fd;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #ffcc00;
            margin-bottom: 1rem;
        }
        .footer-section h4 {
            color: #ffcc00;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-section ul {
            list-style: none;
            padding: 0;
        }
        .footer-section li {
            margin-bottom: 0.8rem;
        }
        .footer-section a {
            color: #bbdefb;
        }
        .footer-section a:hover {
            color: #ffcc00;
            padding-left: 5px;
            transition: all 0.3s ease;
        }
        friend-link {
            display: block;
            background-color: #283593;
            padding: 1.5rem;
            border-radius: 8px;
            margin-top: 1rem;
        }
        friend-link a {
            color: #ffcc00;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #9fa8da;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #283593;
                padding: 1rem;
                margin-top: 1rem;
                border-radius: 8px;
            }
            nav ul.show {
                display: flex;
            }
            nav li {
                width: 100%;
                text-align: center;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .lead {
                font-size: 1.1rem;
            }
            aside {
                position: static;
            }
        }
        .btn {
            display: inline-block;
            padding: 0.8rem 1.8rem;
            background-color: #1a73e8;
            color: white;
            border-radius: 6px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            text-align: center;
        }
        .btn:hover {
            background-color: #0d47a1;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(13, 71, 161, 0.2);
        }
        .tag {
            display: inline-block;
            background-color: #e8eaf6;
            color: #3949ab;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
        .quote {
            font-style: italic;
            border-left: 4px solid #7e57c2;
            padding-left: 1.5rem;
            margin: 2rem 0;
            color: #555;
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: #333;
            margin-top: 1rem;
        }