* {
            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;
        }
        a {
            color: #1a73e8;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
        }
        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, #1a237e 0%, #283593 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -1px;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            color: #00c853;
            margin-right: 10px;
            font-size: 2.5rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 2rem;
        }
        .main-nav a {
            color: #fff;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            font-size: 1rem;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e3f2fd;
            padding: 0.8rem 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #bbdefb;
        }
        .breadcrumb a {
            color: #1a73e8;
        }
        .breadcrumb span {
            color: #5f6368;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #5f6368;
            font-size: 0.8rem;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
        }
        .article-header {
            border-bottom: 2px solid #e0e0e0;
            padding-bottom: 1.5rem;
            margin-bottom: 2.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            color: #666;
            font-size: 0.95rem;
        }
        .last-updated {
            background-color: #e8f5e9;
            padding: 0.4rem 0.8rem;
            border-radius: 20px;
            font-weight: 600;
        }
        .article-body h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #c5cae9;
        }
        .article-body h3 {
            font-size: 1.6rem;
            color: #3949ab;
            margin: 2rem 0 1rem;
        }
        .article-body h4 {
            font-size: 1.3rem;
            color: #5c6bc0;
            margin: 1.5rem 0 0.8rem;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .article-body strong {
            color: #1a237e;
            font-weight: 700;
        }
        .article-body em {
            background-color: #f5f5f5;
            font-style: italic;
            padding: 0 3px;
        }
        .highlight-box {
            background: linear-gradient(to right, #e3f2fd, #f3e5f5);
            border-left: 5px solid #1a73e8;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .image-wrapper {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .image-wrapper img {
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
        }
        .image-caption {
            font-size: 0.95rem;
            color: #666;
            margin-top: 0.8rem;
            font-style: italic;
        }
        .internal-links-list {
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links-list h3 {
            margin-top: 0;
        }
        .internal-links-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .internal-links-list li a {
            display: block;
            padding: 0.8rem;
            background: white;
            border-radius: 6px;
            border: 1px solid #e0e0e0;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .internal-links-list li a:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 6px 15px rgba(0,0,0,0.05);
        }
        .widget h3 {
            color: #1a237e;
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid #e0e0e0;
            font-size: 1.4rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1rem;
            border: 2px solid #1a73e8;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: #1a73e8;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #0d47a1;
        }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin-bottom: 1.2rem;
        }
        .rating-widget .stars i {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-widget .stars i.active,
        .rating-widget .stars i:hover {
            color: #ffc107;
        }
        .rating-form input, .rating-form textarea {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
        }
        .rating-form button {
            width: 100%;
            padding: 0.9rem;
            background: #00c853;
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .rating-form button:hover {
            background: #00a844;
        }
        .comments-widget .comment-list {
            max-height: 400px;
            overflow-y: auto;
            padding-right: 10px;
        }
        .comment {
            padding: 1rem 0;
            border-bottom: 1px solid #eee;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 700;
            color: #1a237e;
        }
        .comment-date {
            font-size: 0.85rem;
            color: #888;
            margin-left: 10px;
        }
        .comment-text {
            margin-top: 0.5rem;
            color: #555;
        }
        .site-footer {
            background: #1a237e;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-widget h4 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: #bbdefb;
        }
        .footer-widget ul {
            list-style: none;
        }
        .footer-widget li {
            margin-bottom: 0.8rem;
        }
        .footer-widget a {
            color: #c5cae9;
            transition: color 0.3s;
        }
        .footer-widget a:hover {
            color: #fff;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: #0d47a1;
            padding: 1.2rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        friend-link a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #3949ab;
            color: #bbdefb;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
            }
            .main-nav.active {
                max-height: 300px;
            }
            .main-nav ul {
                flex-direction: column;
                padding-top: 1rem;
            }
            .main-nav li {
                margin: 0.5rem 0;
                margin-left: 0;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .article-body h2 {
                font-size: 1.8rem;
            }
            .article-body h3 {
                font-size: 1.5rem;
            }
            .article-content {
                padding: 1.5rem;
            }
        }