* {
            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;
            font-size: 1.05rem;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: #2c5282;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a365d;
        }
        ul, ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        p, li {
            margin-bottom: 1.2rem;
        }
        blockquote {
            border-left: 4px solid #4a5568;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #4a5568;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .site-header {
            background: linear-gradient(135deg, #1a365d 0%, #2d3748 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-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: #f7fafc;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
        }
        .my-logo span {
            color: #ecc94b;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: #e2e8f0;
            font-weight: 500;
            padding: 0.5rem 0.25rem;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #fbd38d;
            border-bottom-color: #fbd38d;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb a:hover {
            color: #2d3748;
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            color: #a0aec0;
        }
        .search-section {
            background: linear-gradient(to right, #4299e1, #38b2ac);
            padding: 2rem 0;
            margin-bottom: 2.5rem;
            border-radius: 0.5rem;
            text-align: center;
            color: white;
        }
        .search-form {
            max-width: 600px;
            margin: 1.5rem auto 0;
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: none;
            border-radius: 0.375rem 0 0 0.375rem;
            font-size: 1rem;
        }
        .search-button {
            background-color: #2d3748;
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 0.375rem 0.375rem 0;
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s;
        }
        .search-button:hover {
            background-color: #1a202c;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2.5rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: 0.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-content h1 {
            font-size: 2.8rem;
            color: #1a365d;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ecc94b;
            padding-bottom: 0.5rem;
        }
        .article-content h2 {
            font-size: 2rem;
            color: #2d3748;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: #4a5568;
            margin: 2rem 0 1rem;
        }
        .article-content h4 {
            font-size: 1.3rem;
            color: #718096;
            margin: 1.5rem 0 0.8rem;
        }
        .highlight {
            background-color: #fefcbf;
            padding: 1.5rem;
            border-radius: 0.375rem;
            border-left: 4px solid #d69e2e;
            margin: 1.5rem 0;
        }
        .lead {
            font-size: 1.3rem;
            color: #4a5568;
            font-weight: 500;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 0.5rem;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            color: #718096;
            padding: 0.8rem;
            background-color: #f7fafc;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            padding: 1.8rem;
            border-radius: 0.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            color: #2d3748;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ecc94b;
        }
        .link-list {
            list-style: none;
            padding-left: 0;
        }
        .link-list li {
            margin-bottom: 0.8rem;
        }
        .link-list a {
            display: block;
            padding: 0.6rem 0.8rem;
            background-color: #edf2f7;
            border-radius: 0.25rem;
            border-left: 3px solid #4299e1;
        }
        .link-list a:hover {
            background-color: #e2e8f0;
            border-left-color: #1a365d;
        }
        .interactive-module {
            background-color: #f7fafc;
            border: 1px solid #e2e8f0;
            border-radius: 0.5rem;
            padding: 2rem;
            margin: 2.5rem 0;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            color: #2d3748;
            margin-bottom: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            margin: 1rem 0;
        }
        .rating-stars i {
            color: #ecc94b;
            cursor: pointer;
            font-size: 1.5rem;
            transition: transform 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #4a5568;
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #cbd5e0;
            border-radius: 0.375rem;
            font-family: inherit;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .form-submit {
            background-color: #4299e1;
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 0.375rem;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .form-submit:hover {
            background-color: #3182ce;
        }
        .comment-list {
            list-style: none;
            padding-left: 0;
        }
        .comment-item {
            border-bottom: 1px solid #e2e8f0;
            padding: 1.2rem 0;
        }
        .comment-meta {
            display: flex;
            justify-content: space-between;
            color: #718096;
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
        }
        .site-footer {
            background-color: #1a202c;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-widget h4 {
            color: #f7fafc;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: inline-block;
            background-color: #2d3748;
            color: #e2e8f0;
            padding: 0.5rem 1rem;
            border-radius: 0.25rem;
            margin: 0 0.5rem 0.5rem 0;
            font-size: 0.9rem;
        }
        friend-link:hover {
            background-color: #4a5568;
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #4a5568;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        .update-time {
            color: #a0aec0;
            font-style: italic;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #e2e8f0;
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #2d3748;
                padding: 1rem;
                transform: translateY(-150%);
                transition: transform 0.4s ease;
                box-shadow: 0 5px 10px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                transform: translateY(0);
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 0.9rem 1rem;
                border-bottom: 1px solid #4a5568;
            }
            .article-content {
                padding: 1.5rem;
            }
            .article-content h1 {
                font-size: 2.2rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input,
            .search-button {
                width: 100%;
                border-radius: 0.375rem;
                margin-bottom: 0.5rem;
            }
        }