:root {
            --primary-red: #c41e3a;
            --christmas-green: #165b33;
            --gold: #ffcc00;
            --snow: #f8f9fa;
            --coal: #2d3748;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--coal);
            background-color: var(--snow);
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.9) 0%, transparent 20%),
                radial-gradient(circle at 90% 80%, rgba(198, 30, 58, 0.05) 0%, transparent 20%);
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--christmas-green) 0%, #0d4727 100%);
            color: white;
            padding: 1.5rem 0;
            border-bottom: 5px solid var(--gold);
            margin-bottom: 2rem;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.8rem;
            font-weight: 900;
            text-decoration: none;
            color: white;
            text-shadow: 3px 3px 0 var(--primary-red);
            transition: var(--transition);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: var(--gold);
            text-shadow: 3px 3px 0 var(--christmas-green);
            transform: scale(1.03);
        }
        .my-logo i {
            color: var(--gold);
            margin-right: 8px;
        }
        .search-container {
            flex: 1;
            max-width: 400px;
            margin: 0 2rem;
        }
        .search-form {
            display: flex;
            position: relative;
        }
        .search-input {
            flex: 1;
            padding: 14px 20px;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            background: rgba(255, 255, 255, 0.95);
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 204, 0, 0.5);
            background: white;
        }
        .search-btn {
            background: var(--primary-red);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .search-btn:hover {
            background: #a0182f;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 10px;
        }
        .main-nav {
            flex: 100%;
            margin-top: 1.5rem;
        }
        .nav-list {
            display: flex;
            justify-content: center;
            list-style: none;
            flex-wrap: wrap;
            gap: 5px;
            background: rgba(255, 255, 255, 0.1);
            padding: 12px;
            border-radius: var(--border-radius);
        }
        .nav-list li {
            flex: 1;
            min-width: 120px;
            text-align: center;
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 12px 18px;
            border-radius: 8px;
            display: block;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .nav-link:hover,
        .nav-link.active {
            background: var(--gold);
            color: var(--christmas-green);
            border-color: white;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 2rem;
            border-bottom: 1px dashed #ccc;
        }
        .breadcrumb a {
            color: var(--primary-red);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .main-article {
            background: white;
            padding: 3rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            border-left: 8px solid var(--christmas-green);
        }
        h1 {
            color: var(--christmas-green);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.3;
            border-bottom: 3px solid var(--gold);
            padding-bottom: 15px;
        }
        h2 {
            color: var(--primary-red);
            font-size: 2.2rem;
            margin: 2.5rem 0 1.2rem;
            padding-left: 15px;
            border-left: 5px solid var(--gold);
        }
        h3 {
            color: var(--christmas-green);
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #555;
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--primary-red);
            font-weight: 600;
            background: #fff9e6;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border: 2px dashed var(--gold);
            margin-bottom: 2.5rem;
        }
        .highlight {
            background: linear-gradient(120deg, #ffcc0080 0%, #ffcc0080 100%);
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji {
            font-size: 1.3em;
            margin: 0 5px;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
            border: 5px solid white;
            transition: transform 0.5s ease;
        }
        .article-img:hover {
            transform: scale(1.01);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: -1rem;
            margin-bottom: 2rem;
        }
        .content-link {
            color: var(--primary-red);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-red);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--christmas-green);
            border-bottom-style: solid;
            background: #fff0f0;
            padding: 0 3px;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        .feature-list {
            background: #f0f9ff;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border: 2px solid #cfe2ff;
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--primary-red);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            text-align: center;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--gold);
        }
        .related-links {
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #eee;
        }
        .related-links a {
            color: var(--coal);
            text-decoration: none;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--primary-red);
            transform: translateX(5px);
        }
        .related-links i {
            color: var(--christmas-green);
            margin-right: 10px;
            font-size: 0.9rem;
        }
        .interactive-section {
            background: linear-gradient(to right, #fff9e6, #fff);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
            border: 2px solid var(--gold);
        }
        .rating-form,
        .comment-form {
            margin-top: 2rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            font-size: 2.5rem;
            cursor: pointer;
            transition: var(--transition);
            margin-right: 5px;
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: var(--gold);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--christmas-green);
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--primary-red);
            box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.2);
        }
        .submit-btn {
            background: linear-gradient(to right, var(--christmas-green), #0d4727);
            color: white;
            border: none;
            padding: 16px 40px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: block;
            margin: 2rem auto 0;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, var(--primary-red), #a0182f);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }
        .site-footer {
            background: var(--coal);
            color: white;
            padding: 3rem 0 2rem;
            border-radius: var(--border-radius) var(--border-radius) 0 0;
            margin-top: 4rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            color: white;
            text-decoration: none;
            font-weight: 900;
            margin-bottom: 1rem;
            display: inline-block;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        friend-link {
            background: rgba(255, 255, 255, 0.1);
            padding: 10px 20px;
            border-radius: 30px;
            transition: var(--transition);
        }
        friend-link a {
            color: var(--gold);
            text-decoration: none;
            font-weight: 600;
        }
        friend-link:hover {
            background: rgba(255, 204, 0, 0.2);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
            width: 100%;
        }
        .update-time {
            background: #e6f7ff;
            padding: 1rem;
            border-radius: var(--border-radius);
            text-align: center;
            margin: 2rem 0;
            border-left: 5px solid #1890ff;
            font-style: italic;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: stretch;
            }
            .my-logo {
                text-align: center;
                margin-bottom: 1rem;
                font-size: 2.2rem;
            }
            .search-container {
                max-width: 100%;
                margin: 1rem 0;
                order: 3;
            }
            .menu-toggle {
                display: block;
                position: absolute;
                top: 25px;
                right: 20px;
            }
            .main-nav {
                display: none;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                gap: 10px;
            }
            .nav-list li {
                min-width: auto;
            }
            .content-wrapper {
                gap: 2rem;
            }
            .main-article {
                padding: 2rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
            .footer-container {
                flex-direction: column;
                text-align: center;
            }
            .friend-links {
                justify-content: center;
            }
        }