:root {
            --primary-dark: #2a2d43;
            --primary-accent: #6c5ce7;
            --secondary-accent: #a29bfe;
            --text-primary: #333344;
            --text-secondary: #555566;
            --background-light: #f8f9fa;
            --background-card: #ffffff;
            --border-color: #e0e0e6;
            --hover-transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --shadow-subtle: 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-elevated: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            background-color: var(--background-light);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--background-card);
            box-shadow: var(--shadow-subtle);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-accent);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--hover-transition);
        }
        .my-logo:hover {
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .my-logo i {
            font-size: 2rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--hover-transition);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-accent);
            transition: width 0.3s ease;
        }
        .main-nav a:hover {
            color: var(--primary-accent);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--primary-dark);
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .breadcrumb a {
            color: var(--primary-accent);
            text-decoration: none;
        }
        .breadcrumb span {
            margin: 0 5px;
        }
        .hero-section {
            padding: 3rem 0;
            text-align: center;
            background: linear-gradient(135deg, var(--background-card) 0%, #f0f2ff 100%);
            border-radius: 0 0 20px 20px;
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 3.2rem;
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .hero-tagline {
            font-size: 1.3rem;
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .search-module {
            max-width: 600px;
            margin: 2rem auto;
            padding: 2rem;
            background: var(--background-card);
            border-radius: 15px;
            box-shadow: var(--shadow-subtle);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid var(--border-color);
            border-radius: 50px;
            font-size: 1rem;
            transition: var(--hover-transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary-accent);
            box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
        }
        .search-button {
            padding: 1rem 2rem;
            background: var(--primary-accent);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--hover-transition);
        }
        .search-button:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        .article-content {
            background: var(--background-card);
            padding: 2.5rem;
            border-radius: 20px;
            box-shadow: var(--shadow-subtle);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary-dark);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary-accent);
        }
        h3 {
            font-size: 1.7rem;
            color: var(--text-primary);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--text-secondary);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--primary-dark);
            background: #f0f2ff;
            padding: 1.5rem;
            border-left: 4px solid var(--primary-accent);
            border-radius: 0 10px 10px 0;
            margin: 2rem 0;
        }
        .highlight {
            background: linear-gradient(120deg, #a29bfe20 0%, #a29bfe20 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 15px;
            margin: 2rem 0;
            box-shadow: var(--shadow-elevated);
            transition: var(--hover-transition);
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-secondary);
            margin-top: -1.5rem;
            margin-bottom: 2rem;
        }
        .content-link {
            color: var(--primary-accent);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--secondary-accent);
            transition: var(--hover-transition);
        }
        .content-link:hover {
            color: var(--primary-dark);
            border-bottom-style: solid;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            background: #f8f9ff;
            padding: 2rem;
            border-radius: 15px;
            margin: 2.5rem 0;
            border: 1px solid var(--border-color);
        }
        .stat {
            text-align: center;
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-accent);
            line-height: 1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-top: 0.5rem;
        }
        blockquote {
            border-left: 5px solid var(--secondary-accent);
            padding: 1.5rem 2rem;
            margin: 2.5rem 0;
            background: #f8f9ff;
            border-radius: 0 10px 10px 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        blockquote cite {
            display: block;
            margin-top: 1rem;
            font-style: normal;
            font-weight: 600;
            color: var(--primary-dark);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: var(--background-card);
            padding: 1.8rem;
            border-radius: 15px;
            box-shadow: var(--shadow-subtle);
        }
        .sidebar-title {
            font-size: 1.3rem;
            color: var(--primary-dark);
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 1px solid var(--border-color);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed var(--border-color);
        }
        .related-links a {
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--hover-transition);
            display: block;
        }
        .related-links a:hover {
            color: var(--primary-accent);
            padding-left: 5px;
        }
        .update-time {
            font-size: 0.9rem;
            color: var(--text-secondary);
            background: #f0f2ff;
            padding: 1rem;
            border-radius: 10px;
            text-align: center;
        }
        .interaction-module {
            background: var(--background-card);
            padding: 2.5rem;
            border-radius: 20px;
            box-shadow: var(--shadow-subtle);
            margin: 3rem 0;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            max-width: 600px;
            margin-top: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--hover-transition);
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffc107;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-label {
            font-weight: 600;
            color: var(--text-primary);
        }
        .form-input, .form-textarea {
            padding: 1rem;
            border: 2px solid var(--border-color);
            border-radius: 10px;
            font-size: 1rem;
            transition: var(--hover-transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary-accent);
            box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            align-self: flex-start;
            padding: 1rem 2.5rem;
            background: var(--primary-accent);
            color: white;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--hover-transition);
        }
        .submit-button:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }
        .site-footer {
            background: var(--primary-dark);
            color: #ccd0e6;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            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: white;
            margin-bottom: 1rem;
            display: block;
        }
        .footer-nav ul {
            list-style: none;
        }
        .footer-nav a {
            color: #ccd0e6;
            text-decoration: none;
            transition: var(--hover-transition);
            display: block;
            padding: 0.3rem 0;
        }
        .footer-nav a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        friend-link a {
            color: var(--secondary-accent);
            text-decoration: none;
            font-weight: 600;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #a0a4c9;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.8rem;
            }
            .hero-tagline {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                position: fixed;
                top: 80px;
                left: -100%;
                flex-direction: column;
                background: var(--background-card);
                width: 100%;
                padding: 2rem;
                box-shadow: var(--shadow-elevated);
                transition: left 0.4s ease;
                z-index: 999;
            }
            .main-nav.active ul {
                left: 0;
            }
            .main-nav a {
                display: block;
                padding: 1rem 0;
                border-bottom: 1px solid var(--border-color);
            }
            .main-nav a::after {
                display: none;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .stats-box {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-button {
                width: 100%;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 15px;
            }
            .article-content,
            .interaction-module {
                padding: 1.8rem;
            }
            h1 {
                font-size: 2rem;
            }
            .hero-tagline {
                font-size: 1.1rem;
            }
        }
        @media print {
            .site-header,
            .search-module,
            .sidebar,
            .interaction-module,
            .site-footer {
                display: none;
            }
            body {
                background: white;
                color: black;
                font-size: 12pt;
            }
            .container {
                max-width: 100%;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }