:root {
            --primary-blue: #0a2e5c;
            --secondary-gold: #c9a35e;
            --accent-red: #8b1a1a;
            --dark-bg: #0c1622;
            --light-bg: #f5f1e8;
            --text-dark: #1a1a1a;
            --text-light: #e8e6e1;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
            --transition: all 0.3s ease;
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--light-bg);
            background-image: url('data:image/svg+xml;utf8,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><path d="M0,50 Q25,40 50,50 T100,50 L100,100 L0,100 Z" fill="%230a2e5c" opacity="0.03"/></svg>');
            background-size: 300px;
        }
        .header-container {
            background-color: var(--primary-blue);
            color: var(--text-light);
            padding: 1rem 2rem;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        .my-logo {
            font-family: 'Palatino Linotype', 'Book Antiqua', serif;
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary-gold);
            text-decoration: none;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: #fff;
            transform: scale(1.03);
        }
        .my-logo i {
            margin-right: 0.5rem;
        }
        .search-form {
            flex-grow: 1;
            max-width: 500px;
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.75rem 1rem;
            border: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            background-color: rgba(255, 255, 255, 0.95);
        }
        .search-button {
            background-color: var(--accent-red);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-button:hover {
            background-color: #a52a2a;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
            margin-top: 1.5rem;
            padding: 1rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-menu li a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-menu li a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--secondary-gold);
        }
        .breadcrumb {
            padding: 0.8rem 2rem;
            background-color: #1a3a6c;
            color: #b0b8c5;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--secondary-gold);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        article {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 3px solid var(--secondary-gold);
            padding-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-blue);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }
        .update-time {
            background-color: #f0f7ff;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            color: var(--primary-blue);
            font-weight: 600;
        }
        h2 {
            font-size: 2rem;
            color: var(--accent-red);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #e0e0e0;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-blue);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #333;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 4px solid var(--secondary-gold);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight strong {
            color: var(--accent-red);
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
            transition: var(--transition);
        }
        .featured-image:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 22px rgba(0, 0, 0, 0.25);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .content-link {
            color: var(--accent-red);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--accent-red);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--primary-blue);
            border-bottom-style: solid;
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .tip-card {
            background-color: #f8f9fa;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-top: 4px solid var(--secondary-gold);
            transition: var(--transition);
        }
        .tip-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
        }
        .tip-card h4 {
            color: var(--primary-blue);
            margin-top: 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-title {
            font-size: 1.4rem;
            color: var(--primary-blue);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary-gold);
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid #eee;
        }
        .related-links a {
            color: var(--text-dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.7rem;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--accent-red);
            padding-left: 5px;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #ddd;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #ffc107;
        }
        .rating-form input,
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
        }
        .rating-form button,
        .comment-form button {
            width: 100%;
            padding: 0.9rem;
            background-color: var(--primary-blue);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background-color: var(--accent-red);
        }
        footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            color: var(--secondary-gold);
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: var(--secondary-gold);
            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: #b0b8c5;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary-gold);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 1.5rem 0;
            padding: 1rem;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
        }
        friend-link a {
            color: var(--secondary-gold);
            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);
            color: #8a94a2;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .top-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .search-form {
                max-width: 100%;
                order: 3;
                margin-top: 1rem;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 2rem;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                border-top: none;
                margin-top: 1rem;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-menu li a {
                padding: 1rem;
                justify-content: center;
            }
            article {
                padding: 1.5rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .interactive {
            cursor: pointer;
            user-select: none;
        }
        .expandable {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
        }
        .expandable.expanded {
            max-height: 1000px;
        }
        .btn-expand {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin: 1rem 0;
            transition: var(--transition);
        }
        .btn-expand:hover {
            background-color: var(--accent-red);
        }
        #scrollTop {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: var(--accent-red);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: var(--shadow);
            display: none;
            transition: var(--transition);
            z-index: 999;
        }
        #scrollTop:hover {
            background-color: var(--primary-blue);
            transform: translateY(-3px);
        }