:root {
            --primary: #2E7D32;
            --secondary: #4CAF50;
            --accent: #FFC107;
            --light: #F1F8E9;
            --dark: #1B5E20;
            --gray: #757575;
            --light-gray: #EEEEEE;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --border-radius: 8px;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .site-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-xs) 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo span {
            color: var(--accent);
        }
        .nav-desktop {
            display: flex;
            gap: var(--spacing-md);
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            font-weight: 600;
            padding: var(--spacing-xs) 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            position: fixed;
            top: 0;
            right: -100%;
            height: 100vh;
            width: 280px;
            background-color: white;
            box-shadow: -5px 0 15px rgba(0,0,0,0.1);
            padding: var(--spacing-lg) var(--spacing-md);
            transition: right 0.4s ease;
            z-index: 1001;
            overflow-y: auto;
        }
        .nav-mobile.active {
            right: 0;
        }
        .close-menu {
            position: absolute;
            top: var(--spacing-sm);
            right: var(--spacing-sm);
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--gray);
            cursor: pointer;
        }
        .nav-mobile a {
            display: block;
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--light-gray);
            font-weight: 600;
        }
        .overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.5);
            z-index: 1000;
        }
        .overlay.active {
            display: block;
        }
        .breadcrumb {
            padding: var(--spacing-sm) 0;
            background-color: var(--light);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 5px;
        }
        .main-content {
            padding: var(--spacing-lg) 0;
        }
        .article-header {
            margin-bottom: var(--spacing-lg);
            text-align: center;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: var(--spacing-sm);
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: var(--spacing-md);
            color: var(--gray);
            font-size: 0.9rem;
            margin-bottom: var(--spacing-md);
        }
        .update-time {
            background-color: var(--light);
            padding: 0.3rem 0.8rem;
            border-radius: var(--border-radius);
            font-weight: 600;
        }
        .intro {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto var(--spacing-lg);
            color: var(--dark);
            text-align: center;
            padding: var(--spacing-md);
            background-color: var(--light);
            border-left: 5px solid var(--secondary);
            border-radius: var(--border-radius);
        }
        h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: var(--spacing-lg) 0 var(--spacing-md);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-gray);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: var(--spacing-md) 0 var(--spacing-sm);
        }
        h4 {
            font-size: 1.3rem;
            color: var(--gray);
            margin: var(--spacing-sm) 0 var(--spacing-xs);
        }
        p {
            margin-bottom: var(--spacing-md);
            text-align: justify;
        }
        .content-section {
            margin-bottom: var(--spacing-lg);
        }
        .highlight {
            background-color: #FFF9C4;
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
            margin: var(--spacing-md) 0;
        }
        .feature-image {
            margin: var(--spacing-lg) auto;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            max-width: 900px;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            padding: var(--spacing-xs);
            background-color: var(--light-gray);
            font-size: 0.9rem;
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: var(--spacing-md);
            margin: var(--spacing-lg) 0;
        }
        .tip-card {
            background-color: white;
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            box-shadow: var(--shadow);
            transition: transform 0.3s ease;
        }
        .tip-card:hover {
            transform: translateY(-5px);
        }
        .tip-card i {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: var(--spacing-sm);
        }
        .quote {
            font-size: 1.3rem;
            font-style: italic;
            color: var(--dark);
            text-align: center;
            max-width: 800px;
            margin: var(--spacing-lg) auto;
            padding: var(--spacing-lg);
            background-color: var(--light);
            border-radius: var(--border-radius);
            position: relative;
        }
        .quote::before, .quote::after {
            content: '"';
            font-size: 4rem;
            color: var(--secondary);
            opacity: 0.3;
            position: absolute;
        }
        .quote::before {
            top: 10px;
            left: 20px;
        }
        .quote::after {
            bottom: 10px;
            right: 20px;
        }
        .interactive-section {
            background-color: var(--light);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            margin: var(--spacing-lg) 0;
        }
        .form-group {
            margin-bottom: var(--spacing-md);
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
        }
        button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        button:hover {
            background-color: var(--dark);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: var(--spacing-sm) 0;
        }
        .star {
            font-size: 1.5rem;
            color: var(--light-gray);
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star:hover,
        .star.active {
            color: var(--accent);
        }
        .site-footer {
            background-color: var(--dark);
            color: white;
            padding: var(--spacing-lg) 0;
            margin-top: var(--spacing-lg);
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
            color: white;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: var(--spacing-sm);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.1);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-xs);
            transition: background-color 0.3s ease;
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-lg);
            margin-top: var(--spacing-lg);
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #ccc;
            font-size: 0.9rem;
        }
        .text-center {
            text-align: center;
        }
        .bold {
            font-weight: 700;
            color: var(--dark);
        }
        .emoji {
            font-size: 1.2em;
        }
        .divider {
            height: 1px;
            background-color: var(--light-gray);
            margin: var(--spacing-lg) 0;
        }