* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-green: #4CAF50;
            --dark-green: #2E7D32;
            --light-green: #C8E6C9;
            --zombie-yellow: #FFEB3B;
            --accent-orange: #FF9800;
            --dark-gray: #333;
            --medium-gray: #666;
            --light-gray: #f5f5f5;
            --card-shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        body {
            background-color: #f9f9f9;
            color: var(--dark-gray);
            line-height: 1.6;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark-green) 0%, var(--primary-green) 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: white;
            text-decoration: none;
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            margin-right: 10px;
            color: var(--zombie-yellow);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .desktop-nav a:hover {
            color: var(--zombie-yellow);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--zombie-yellow);
            transition: width 0.3s;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: var(--dark-green);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 1rem;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
            display: block;
            padding: 0.5rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            background: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background: var(--light-gray);
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--medium-gray);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary-green);
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            color: #999;
            font-size: 0.8rem;
        }
        main {
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px solid var(--light-green);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark-green);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            color: var(--medium-gray);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }
        .intro {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: var(--dark-gray);
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto 3rem;
            padding: 1rem;
            background: white;
            border-radius: 10px;
            box-shadow: var(--card-shadow);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid var(--light-green);
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary-green);
        }
        .search-button {
            background: var(--primary-green);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            font-weight: 500;
        }
        .search-button:hover {
            background: var(--dark-green);
        }
        .tier-section {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 3rem;
            box-shadow: var(--card-shadow);
        }
        h2 {
            color: var(--dark-green);
            font-size: 2.2rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-green);
        }
        h3 {
            color: var(--accent-orange);
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--dark-gray);
            font-size: 1.4rem;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }
        .tier-card {
            background: var(--light-gray);
            border-radius: 10px;
            padding: 1.5rem;
            border-left: 5px solid;
            transition: var(--transition);
        }
        .tier-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .tier-card.s-tier {
            border-left-color: #FFD700;
        }
        .tier-card.a-tier {
            border-left-color: #FF6B6B;
        }
        .tier-card.b-tier {
            border-left-color: #4ECDC4;
        }
        .tier-card.c-tier {
            border-left-color: #95A5A6;
        }
        .tier-card-header {
            display: flex;
            align-items: center;
            margin-bottom: 1rem;
        }
        .tier-rank {
            font-size: 1.8rem;
            font-weight: 700;
            margin-right: 1rem;
            min-width: 50px;
        }
        .tier-card.s-tier .tier-rank {
            color: #FFD700;
        }
        .tier-card.a-tier .tier-rank {
            color: #FF6B6B;
        }
        .tier-card.b-tier .tier-rank {
            color: #4ECDC4;
        }
        .tier-card.c-tier .tier-rank {
            color: #95A5A6;
        }
        .plant-name {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--dark-gray);
        }
        .plant-stats {
            display: flex;
            justify-content: space-between;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px dashed #ccc;
            font-size: 0.9rem;
            color: var(--medium-gray);
        }
        .hero-image {
            width: 100%;
            height: 400px;
            background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1588872657578-7efd1f1555ed?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            border-radius: 12px;
            margin: 2rem 0 3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
            padding: 2rem;
        }
        .hero-text h2 {
            color: white;
            border: none;
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        .hero-text p {
            font-size: 1.3rem;
            max-width: 700px;
            margin: 0 auto;
        }
        .highlight {
            background: linear-gradient(120deg, var(--light-green) 0%, transparent 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .tip-box {
            background: #E3F2FD;
            border-left: 4px solid #2196F3;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box h4 {
            color: #1976D2;
            margin-top: 0;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            border-radius: 8px;
            overflow: hidden;
        }
        .comparison-table th, .comparison-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        .comparison-table th {
            background: var(--dark-green);
            color: white;
            font-weight: 600;
        }
        .comparison-table tr:nth-child(even) {
            background: #f9f9f9;
        }
        .comparison-table tr:hover {
            background: #f0f0f0;
        }
        .user-interaction {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            margin: 3rem 0;
            box-shadow: var(--card-shadow);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--dark-gray);
        }
        textarea, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        textarea:focus, input[type="text"]:focus, input[type="email"]:focus {
            outline: none;
            border-color: var(--primary-green);
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars label:hover,
        .rating-stars label:hover ~ label {
            color: #FFD700;
        }
        .rating-stars input:checked ~ label {
            color: #FFD700;
        }
        .submit-button {
            background: var(--primary-green);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-button:hover {
            background: var(--dark-green);
        }
        .footer-links {
            background: var(--light-gray);
            padding: 3rem 0;
            margin-top: 3rem;
            border-top: 1px solid #ddd;
        }
        .web-link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--dark-green);
            text-decoration: none;
            font-weight: 500;
            display: flex;
            align-items: center;
        }
        .web-link i {
            margin-right: 10px;
            color: var(--accent-orange);
        }
        footer {
            background: var(--dark-gray);
            color: white;
            padding: 3rem 0 2rem;
            text-align: center;
        }
        .copyright {
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .hero-image {
                height: 300px;
            }
            .hero-text h2 {
                font-size: 2rem;
            }
            .tier-grid {
                grid-template-columns: 1fr;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .header-container {
                padding: 0 1rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: 8px;
                margin-bottom: 0.5rem;
            }
            .search-button {
                border-radius: 8px;
                padding: 0.9rem;
            }
            .tier-section, .user-interaction {
                padding: 1.5rem;
            }
        }