:root {
            --primary-blue: #006994;
            --secondary-gold: #c9a227;
            --dark-navy: #0a1a2a;
            --light-sand: #f4e9d8;
            --storm-gray: #7a8b99;
            --accent-red: #b32f2f;
            --text-dark: #2c3e50;
            --text-light: #ecf0f1;
            --shadow: 0 4px 12px rgba(10, 26, 42, 0.15);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
            min-height: 100vh;
        }
        .page-header {
            background-color: var(--dark-navy);
            background-image: linear-gradient(to right, var(--dark-navy) 30%, #123456 100%);
            color: var(--text-light);
            padding: 1rem 2rem;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Palatino Linotype', 'Book Antiqua', serif;
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary-gold);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            transition: var(--transition);
        }
        .my-logo:hover {
            color: #e6d08c;
            transform: scale(1.03);
        }
        .my-logo span {
            color: var(--light-sand);
            font-size: 1.8rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--light-sand);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: rgba(201, 162, 39, 0.2);
            color: var(--secondary-gold);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            max-width: 1200px;
            margin: 1rem auto;
            padding: 0 2rem;
            font-size: 0.9rem;
            color: var(--storm-gray);
        }
        .breadcrumb a {
            color: var(--primary-blue);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid var(--primary-blue);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #0086c2;
        }
        .main-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem 3rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .article-content {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 3px solid var(--secondary-gold);
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark-navy);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            color: var(--storm-gray);
            font-size: 0.95rem;
        }
        .update-time {
            color: var(--accent-red);
            font-weight: 600;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-blue);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-sand);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark-navy);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            color: var(--dark-navy);
            background-color: #f0f8ff;
            padding: 1.5rem;
            border-left: 5px solid var(--primary-blue);
            border-radius: var(--border-radius);
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 6px 20px rgba(0,0,0,0.1);
            border: 2px solid var(--secondary-gold);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--storm-gray);
            margin-top: -1.5rem;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .internal-links {
            background-color: #f9f9f9;
            border-left: 4px solid var(--secondary-gold);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: var(--border-radius);
        }
        .internal-links h4 {
            color: var(--dark-navy);
            margin-top: 0;
        }
        .internal-links ul {
            list-style-type: none;
            columns: 2;
        }
        .internal-links li {
            margin-bottom: 0.8rem;
            break-inside: avoid;
        }
        .internal-links a {
            color: var(--primary-blue);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            display: inline-block;
        }
        .internal-links a:hover {
            color: var(--accent-red);
            text-decoration: underline;
            transform: translateX(5px);
        }
        blockquote {
            font-style: italic;
            color: #555;
            border-left: 4px solid var(--secondary-gold);
            padding-left: 1.5rem;
            margin: 2rem 0;
            background-color: #fafafa;
            padding: 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            color: var(--primary-blue);
            border-bottom: 1px solid #eee;
            padding-bottom: 0.8rem;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 1.8rem;
            margin: 1rem 0;
        }
        .stars input {
            display: none;
        }
        .stars label {
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .stars label:hover,
        .stars label:hover ~ label {
            color: #ffc107;
        }
        .stars input:checked ~ label {
            color: #ffc107;
        }
        .rating-button {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 0.8rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .rating-button:hover {
            background-color: #0086c2;
        }
        .quick-links ul {
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted #eee;
        }
        .quick-links a {
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .quick-links a:hover {
            color: var(--primary-blue);
            transform: translateX(5px);
        }
        .comments-section {
            margin-top: 3rem;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-bottom: 3rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea {
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(0, 105, 148, 0.1);
        }
        .submit-button {
            background-color: var(--secondary-gold);
            color: var(--dark-navy);
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 700;
            font-size: 1.1rem;
            align-self: flex-start;
            transition: var(--transition);
        }
        .submit-button:hover {
            background-color: #d4b125;
            transform: translateY(-3px);
        }
        .comment-list {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .comment {
            background-color: #f9f9f9;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            border-left: 4px solid var(--storm-gray);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1rem;
            font-size: 0.9rem;
            color: var(--storm-gray);
        }
        .comment-author {
            font-weight: 700;
            color: var(--dark-navy);
        }
        .page-footer {
            background-color: var(--dark-navy);
            color: var(--text-light);
            padding: 3rem 2rem 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary-gold);
            margin-bottom: 1rem;
            display: block;
        }
        .footer-links h4 {
            color: var(--light-sand);
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        .footer-links a {
            color: #b0b7c0;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary-gold);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            border: 1px solid rgba(201, 162, 39, 0.3);
            border-radius: var(--border-radius);
            padding: 1rem;
            margin: 1.5rem 0;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.1);
            transform: translateY(-3px);
        }
        friend-link a {
            color: var(--secondary-gold);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .copyright {
            max-width: 1200px;
            margin: 2.5rem auto 0;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            color: #b0b7c0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .internal-links ul {
                columns: 1;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                background-color: rgba(10, 26, 42, 0.95);
                border-radius: var(--border-radius);
                padding: 1rem;
            }
            .main-nav.active ul {
                display: flex;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .intro {
                font-size: 1.1rem;
            }
        }
        @media (max-width: 576px) {
            .page-header,
            .main-content,
            .footer-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .meta-info {
                flex-direction: column;
                align-items: flex-start;
            }
            .stars {
                font-size: 1.5rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        strong {
            color: var(--dark-navy);
        }
        a {
            color: var(--primary-blue);
        }