* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #2a4365;
            --secondary-color: #c53030;
            --accent-color: #ecc94b;
            --light-bg: #f7fafc;
            --dark-text: #1a202c;
            --light-text: #718096;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--dark-text);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul, ol {
            list-style-position: inside;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-color), #1a365d);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .logo-text {
            background: linear-gradient(to right, var(--accent-color), #f6e05e);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .nav-link {
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: var(--border-radius);
        }
        .nav-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumbs {
            background-color: var(--light-bg);
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumbs a {
            color: var(--primary-color);
        }
        .breadcrumbs a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        .breadcrumbs span {
            color: var(--light-text);
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto;
            padding: 0 1rem;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #cbd5e0;
            border-radius: 50px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(42, 67, 101, 0.2);
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 0 1.8rem;
            cursor: pointer;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #1a365d;
            transform: translateY(-2px);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-section {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 3px solid var(--accent-color);
        }
        .article-title {
            font-size: 2.8rem;
            line-height: 1.2;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--light-text);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .update-time {
            color: var(--secondary-color);
            font-weight: 600;
        }
        .content-block {
            margin-bottom: 3rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.5rem;
            color: #2d3748;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #4a5568;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            line-height: 1.8;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(236, 201, 75, 0.2);
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .featured-image {
            width: 100%;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--light-text);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .internal-link {
            color: var(--secondary-color);
            font-weight: 600;
            border-bottom: 1px dotted currentColor;
        }
        .internal-link:hover {
            color: #9b2c2c;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            text-align: center;
            border-top: 4px solid var(--primary-color);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 1.8rem;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .related-links {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .related-link {
            padding: 0.8rem;
            background-color: var(--light-bg);
            border-radius: var(--border-radius);
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .related-link:hover {
            background-color: #e2e8f0;
            transform: translateX(5px);
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary-color), #1a365d);
            color: white;
            text-align: center;
            padding: 2.5rem 1.5rem;
            border-radius: var(--border-radius);
        }
        .cta-button {
            display: inline-block;
            background-color: var(--accent-color);
            color: var(--dark-text);
            font-weight: 700;
            padding: 1rem 2rem;
            border-radius: 50px;
            margin-top: 1.5rem;
            transition: var(--transition);
        }
        .cta-button:hover {
            background-color: #f6e05e;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
        }
        .interaction-section {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            margin: 3rem 0;
            box-shadow: var(--shadow);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            direction: rtl;
            justify-content: flex-start;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #cbd5e0;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #f6e05e;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-label {
            font-weight: 600;
            color: var(--primary-color);
        }
        .form-input, .form-textarea {
            padding: 1rem;
            border: 2px solid #cbd5e0;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(42, 67, 101, 0.2);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            align-self: flex-start;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            padding: 1rem 2.5rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-button:hover {
            background-color: #1a365d;
            transform: translateY(-2px);
        }
        .site-footer {
            background-color: var(--primary-color);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-color);
            margin-bottom: 1rem;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .footer-link {
            color: #cbd5e0;
            transition: var(--transition);
        }
        .footer-link:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 1.5rem 0;
            padding: 1.5rem;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius);
        }
        friend-link a {
            color: var(--accent-color);
            font-weight: 600;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a5568;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--primary-color);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                transform: translateY(-150%);
                transition: transform 0.4s ease;
                box-shadow: var(--shadow);
            }
            .main-nav.active {
                transform: translateY(0);
            }
            .hamburger {
                display: block;
            }
            .article-title {
                font-size: 2.2rem;
            }
            .article-section {
                padding: 1.8rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-section, .sidebar-widget, .interaction-section {
            animation: fadeIn 0.6s ease-out;
        }
        .hover-underline {
            position: relative;
        }
        .hover-underline::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: width 0.3s ease;
        }
        .hover-underline:hover::after {
            width: 100%;
        }