:root {
            --primary-red: #e63946;
            --primary-green: #2a9d8f;
            --holiday-gold: #e9c46a;
            --holiday-dark: #264653;
            --light-bg: #f8f9fa;
            --text-dark: #333;
            --text-light: #555;
            --border-color: #ddd;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--holiday-dark) 0%, #1a3342 100%);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .my-logo span {
            color: var(--primary-red);
            text-transform: uppercase;
        }
        .my-logo i {
            color: var(--holiday-gold);
            font-size: 1.8rem;
        }
        .search-box {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-box input {
            flex: 1;
            padding: 12px 15px;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 0.95rem;
        }
        .search-box button {
            background-color: var(--primary-green);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background-color: #21867a;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        nav {
            padding: 15px 0;
        }
        .nav-list {
            display: flex;
            justify-content: center;
            list-style: none;
            gap: 30px;
            flex-wrap: wrap;
        }
        .nav-list a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover, .nav-list a.active {
            color: var(--holiday-gold);
            border-bottom-color: var(--holiday-gold);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--light-bg);
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-green);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: var(--text-light);
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
        }
        .article-header {
            padding: 40px 0 30px;
            text-align: center;
            border-bottom: 3px solid var(--holiday-gold);
            margin-bottom: 30px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--holiday-dark);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: var(--text-light);
            font-size: 0.95rem;
            margin-top: 20px;
        }
        .article-meta i {
            margin-right: 5px;
            color: var(--primary-green);
        }
        .content-section {
            margin-bottom: 50px;
            padding: 0 20px;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-red);
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light-bg);
            position: relative;
        }
        h2:after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 80px;
            height: 2px;
            background-color: var(--holiday-gold);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--holiday-dark);
            margin: 25px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--primary-green);
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            color: var(--text-dark);
            font-size: 1.05rem;
        }
        .intro-text {
            font-size: 1.2rem;
            line-height: 1.8;
            color: var(--text-light);
            background-color: #f0f9ff;
            padding: 25px;
            border-radius: 8px;
            border-left: 5px solid var(--primary-green);
            margin-bottom: 30px;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 25px;
            border-radius: 8px;
            border: 1px solid var(--holiday-gold);
            margin: 25px 0;
        }
        .highlight h3 {
            color: var(--holiday-dark);
            margin-top: 0;
        }
        .word-list-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .word-category {
            background-color: white;
            border-radius: 8px;
            padding: 25px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border-top: 4px solid var(--primary-red);
        }
        .word-category:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .word-category h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .word-category h4 i {
            color: var(--primary-red);
        }
        .word-list {
            list-style: none;
            columns: 2;
            column-gap: 20px;
        }
        .word-list li {
            padding: 6px 0;
            border-bottom: 1px dashed var(--border-color);
            page-break-inside: avoid;
            break-inside: avoid;
        }
        .word-list li:last-child {
            border-bottom: none;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 25px 0;
            box-shadow: var(--shadow);
            border: 5px solid white;
            display: block;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: -15px;
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        .interactive-section {
            background-color: var(--light-bg);
            border-radius: 8px;
            padding: 30px;
            margin: 40px 0;
        }
        .interactive-section h3 {
            margin-top: 0;
        }
        .rating-form, .comment-form {
            margin-top: 20px;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 15px 0;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars input:checked ~ label,
        .rating-stars label:hover,
        .rating-stars label:hover ~ label {
            color: var(--holiday-gold);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--holiday-dark);
        }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
            outline: none;
            border-color: var(--primary-green);
            box-shadow: 0 0 0 3px rgba(42, 157, 143, 0.1);
        }
        .form-buttons {
            display: flex;
            gap: 15px;
        }
        .btn {
            padding: 12px 25px;
            border: none;
            border-radius: 4px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary {
            background-color: var(--primary-green);
            color: white;
        }
        .btn-primary:hover {
            background-color: #21867a;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background-color: var(--holiday-dark);
            color: white;
        }
        .btn-secondary:hover {
            background-color: #1d3e4f;
            transform: translateY(-2px);
        }
        aside {
            background-color: white;
            border-radius: 8px;
            padding: 25px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-section {
            margin-bottom: 35px;
        }
        .sidebar-section h3 {
            font-size: 1.3rem;
            color: var(--holiday-dark);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light-bg);
            margin-bottom: 20px;
            position: relative;
        }
        .sidebar-section h3:after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--primary-red);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed var(--border-color);
        }
        .related-links li:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .related-links a {
            color: var(--holiday-dark);
            text-decoration: none;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--primary-red);
            transform: translateX(5px);
        }
        .related-links i {
            color: var(--primary-green);
            font-size: 0.9rem;
        }
        .quick-nav {
            list-style: none;
        }
        .quick-nav li {
            margin-bottom: 10px;
        }
        .quick-nav a {
            color: var(--text-light);
            text-decoration: none;
            display: block;
            padding: 10px 15px;
            background-color: var(--light-bg);
            border-radius: 4px;
            transition: var(--transition);
        }
        .quick-nav a:hover {
            background-color: #e9ecef;
            color: var(--primary-green);
            padding-left: 20px;
        }
        footer {
            background-color: var(--holiday-dark);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: white;
            text-decoration: none;
            display: inline-block;
        }
        .footer-logo span {
            color: var(--primary-red);
        }
        .footer-links h4 {
            color: var(--holiday-gold);
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 20px;
            border-radius: 6px;
            margin: 25px 0;
        }
        friend-link h4 {
            color: var(--holiday-gold);
            margin-bottom: 15px;
        }
        friend-link a {
            color: #8bb8ff;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .mobile-toggle {
                display: block;
            }
            .search-box {
                order: 3;
                margin-top: 15px;
                max-width: 100%;
            }
            nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--holiday-dark);
                padding: 0;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .nav-list {
                flex-direction: column;
                gap: 0;
            }
            .nav-list li {
                width: 100%;
                border-bottom: 1px solid rgba(255,255,255,0.05);
            }
            .nav-list a {
                display: block;
                padding: 15px 20px;
                border-bottom: none;
            }
            .nav-active {
                display: block;
            }
            .word-list-container {
                grid-template-columns: 1fr;
            }
            .word-list {
                columns: 1;
            }
            .article-meta {
                flex-direction: column;
                gap: 10px;
                align-items: center;
            }
        }
        @media print {
            header, aside, .interactive-section, footer, .breadcrumb {
                display: none;
            }
            main {
                grid-template-columns: 1fr;
                padding: 0;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
            h1, h2, h3, h4 {
                color: black;
            }
            .intro-text, .highlight {
                border: 1px solid #ccc;
            }
        }
        .text-center {
            text-align: center;
        }
        .text-bold {
            font-weight: 700;
        }
        .text-red {
            color: var(--primary-red);
        }
        .text-green {
            color: var(--primary-green);
        }
        .mb-30 {
            margin-bottom: 30px;
        }
        .mt-30 {
            margin-top: 30px;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }