:root {
            --primary-green: #4CAF50;
            --secondary-green: #8BC34A;
            --accent-yellow: #FFEB3B;
            --dark-green: #2E7D32;
            --light-brown: #EFEBE9;
            --text-dark: #333;
            --text-light: #666;
            --white: #fff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f9f9f9;
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--dark-green);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-green);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark-green) 0%, var(--primary-green) 100%);
            color: var(--white);
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-yellow);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo span {
            color: var(--white);
        }
        .search-form {
            display: flex;
            flex-grow: 1;
            max-width: 500px;
            margin: 0 2rem;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: var(--accent-yellow);
            color: var(--dark-green);
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 0 24px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #ffd600;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav {
            background-color: rgba(255, 255, 255, 0.1);
            margin-top: 1rem;
            border-radius: 8px;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            justify-content: center;
            flex-wrap: wrap;
        }
        .nav-menu li {
            position: relative;
        }
        .nav-menu a {
            color: white;
            padding: 15px 22px;
            display: block;
            font-weight: 600;
            border-radius: 6px;
            margin: 2px;
        }
        .nav-menu a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            text-decoration: none;
        }
        .breadcrumb {
            padding: 12px 0;
            color: var(--light-brown);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--accent-yellow);
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: var(--white);
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--dark-green);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-yellow);
            padding-bottom: 15px;
        }
        h2 {
            color: var(--primary-green);
            margin: 2.5rem 0 1.2rem;
            font-size: 2rem;
            padding-left: 10px;
            border-left: 5px solid var(--secondary-green);
        }
        h3 {
            color: var(--dark-green);
            margin: 2rem 0 1rem;
            font-size: 1.6rem;
        }
        h4 {
            color: var(--text-light);
            margin: 1.5rem 0 0.8rem;
            font-size: 1.3rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            color: var(--text-light);
            background: #f1f8e9;
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 2.5rem;
            border-left: 4px solid var(--primary-green);
        }
        .highlight {
            background: linear-gradient(120deg, var(--accent-yellow) 0%, transparent 100%);
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .image-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 5px solid white;
        }
        .caption {
            font-style: italic;
            color: var(--text-light);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .link-list {
            background: #E8F5E9;
            padding: 25px;
            border-radius: 12px;
            margin: 2rem 0;
        }
        .link-list h3 {
            margin-top: 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 12px;
        }
        .link-list li {
            padding: 10px 15px;
            background: white;
            border-radius: 8px;
            border: 1px solid #C8E6C9;
            transition: var(--transition);
        }
        .link-list li:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .widget {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--primary-green);
            margin-top: 0;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .rating-form label {
            display: block;
            margin: 10px 0 5px;
            font-weight: 600;
        }
        .rating-form input, .rating-form select, .rating-form textarea {
            width: 100%;
            padding: 12px;
            margin-bottom: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
        }
        .rating-stars {
            display: flex;
            justify-content: space-between;
            margin: 15px 0 25px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #FFC107;
        }
        .btn {
            background: var(--primary-green);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            background: var(--dark-green);
            text-decoration: none;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(76, 175, 80, 0.3);
        }
        .update-time {
            font-size: 0.9rem;
            color: var(--text-light);
            text-align: right;
            margin-top: 30px;
            padding-top: 15px;
            border-top: 1px dashed #ccc;
        }
        footer {
            background: var(--dark-green);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-yellow);
            margin-bottom: 15px;
        }
        .friend-links {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 10px;
        }
        friend-link {
            display: inline-block;
            margin: 0 15px 10px 0;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 6px;
        }
        friend-link a {
            color: #C8E6C9;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #BDBDBD;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                align-items: stretch;
            }
            .my-logo {
                text-align: center;
                margin-bottom: 15px;
            }
            .search-form {
                max-width: 100%;
                margin: 15px 0;
            }
            .mobile-toggle {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-menu a {
                border-radius: 0;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            h1 {
                font-size: 2.2rem;
            }
            .article-content {
                padding: 25px;
            }
        }