:root {
            --primary: #1a365d;
            --secondary: #c9a85c;
            --accent: #8b4513;
            --light: #f8f5ee;
            --dark: #0a1428;
            --text: #333333;
            --text-light: #666666;
            --shadow: 0 4px 12px rgba(10, 20, 40, 0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            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: var(--text);
            background-color: var(--light);
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path fill="%231a365d" opacity="0.03" d="M50,0 L100,50 L50,100 L0,50 Z"/></svg>');
            background-size: 150px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--primary);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Palatino Linotype', 'Book Antiqua', serif;
            font-size: 2rem;
            font-weight: bold;
            color: var(--secondary);
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            letter-spacing: 1px;
        }
        .my-logo span {
            color: white;
            font-style: italic;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            text-decoration: none;
            color: var(--secondary);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: rgba(26, 54, 93, 0.05);
            padding: 1rem 0;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        .search-box {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
            text-align: center;
        }
        .search-box h2 {
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--secondary);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 3rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 3rem;
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 2rem;
        }
        .article-header h1 {
            color: var(--primary);
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .meta-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        .update-time {
            background-color: rgba(201, 168, 92, 0.1);
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
        }
        .content-section {
            margin-bottom: 3rem;
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid rgba(26, 54, 93, 0.1);
        }
        h3 {
            color: var(--accent);
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--dark);
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(201, 168, 92, 0.15);
            border-left: 4px solid var(--secondary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .tip {
            background-color: rgba(26, 54, 93, 0.05);
            border: 1px dashed var(--primary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: var(--radius);
        }
        .tip i {
            color: var(--secondary);
            margin-right: 0.5rem;
        }
        .image-container {
            margin: 2.5rem auto;
            text-align: center;
        }
        .image-caption {
            font-style: italic;
            color: var(--text-light);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        ul, ol {
            margin: 1.5rem 0;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        strong {
            color: var(--primary);
            font-weight: 700;
        }
        em {
            color: var(--accent);
            font-style: italic;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-card {
            background: rgba(26, 54, 93, 0.03);
            border: 1px solid rgba(26, 54, 93, 0.1);
            padding: 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .link-card:hover {
            background: rgba(201, 168, 92, 0.1);
            transform: translateY(-3px);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            margin-bottom: 1.2rem;
            color: var(--primary);
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 0.5rem;
        }
        .related-links ul {
            list-style: none;
            padding-left: 0;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted #eee;
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .user-interaction {
            background: white;
            padding: 3rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            margin-top: 2rem;
        }
        @media (max-width: 768px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .rating-box, .comment-box {
            background: rgba(26, 54, 93, 0.02);
            padding: 1.5rem;
            border-radius: var(--radius);
            border: 1px solid rgba(26, 54, 93, 0.1);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
            margin: 1rem 0;
            min-height: 150px;
            resize: vertical;
        }
        .form-row {
            display: flex;
            gap: 1rem;
            margin-bottom: 1rem;
        }
        .form-row input {
            flex: 1;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-family: inherit;
        }
        .submit-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: var(--radius);
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: var(--secondary);
        }
        .site-footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 3rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .footer-section h3 {
            color: var(--secondary);
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 0.5rem;
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: var(--secondary);
            text-decoration: none;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.05);
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            margin: 0.3rem;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(201, 168, 92, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--primary);
                flex-direction: column;
                padding: 2rem;
                gap: 1.5rem;
                box-shadow: var(--shadow);
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
            }
            .main-nav.active ul {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .article-content {
                padding: 2rem 1.5rem;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .meta-info {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .delay-1 { animation-delay: 0.2s; opacity: 0; }
        .delay-2 { animation-delay: 0.4s; opacity: 0; }
        .delay-3 { animation-delay: 0.6s; opacity: 0; }