:root {
            --primary-green: #6aaa64;
            --secondary-yellow: #c9b458;
            --dark-gray: #787c7e;
            --light-gray: #d3d6da;
            --bg-color: #ffffff;
            --text-color: #1a1a1b;
            --header-bg: #f8f9fa;
            --footer-bg: #212529;
            --footer-text: #adb5bd;
            --link-color: #0d6efd;
            --link-hover: #0a58ca;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--bg-color);
            font-size: 1.05rem;
        }
        a {
            color: var(--link-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--link-hover);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--header-bg);
            border-bottom: 1px solid var(--light-gray);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: Georgia, serif;
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-green);
            letter-spacing: 2px;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo a:hover {
            color: var(--primary-green);
            text-decoration: none;
        }
        .my-logo i {
            font-size: 1.8rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            color: var(--text-color);
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--primary-green);
            text-decoration: none;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--primary-green);
            transition: width 0.3s;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--text-color);
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: var(--dark-gray);
        }
        .breadcrumb a {
            color: var(--dark-gray);
        }
        .breadcrumb a:hover {
            color: var(--primary-green);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        .article-content {
            background-color: #fff;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .sidebar {
            background-color: var(--header-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--text-color);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--primary-green);
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-green);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed var(--light-gray);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--secondary-yellow);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--dark-gray);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--dark-gray);
            margin-bottom: 2rem;
            padding: 1rem;
            background-color: #f8f9fa;
            border-left: 4px solid var(--primary-green);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        strong {
            color: var(--primary-green);
            font-weight: 700;
        }
        em {
            color: var(--secondary-yellow);
            font-style: italic;
        }
        blockquote {
            border-left: 4px solid var(--secondary-yellow);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background-color: #fef9e7;
            padding: 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        .article-image {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .article-image img {
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            border: 1px solid var(--light-gray);
        }
        .caption {
            font-size: 0.9rem;
            color: var(--dark-gray);
            margin-top: 0.8rem;
            font-style: italic;
        }
        .search-box, .comment-form, .rating-form {
            background-color: #f8f9fa;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2.5rem 0;
            border: 1px solid var(--light-gray);
        }
        .form-title {
            font-size: 1.3rem;
            color: var(--primary-green);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid var(--light-gray);
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-green);
            box-shadow: 0 0 0 3px rgba(106, 170, 100, 0.2);
        }
        button, .btn {
            background-color: var(--primary-green);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        button:hover, .btn:hover {
            background-color: #5d9a5a;
            color: white;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: var(--light-gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--secondary-yellow);
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-title {
            font-size: 1.3rem;
            color: var(--primary-green);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-gray);
        }
        .link-list {
            list-style: none;
            margin-left: 0;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted var(--light-gray);
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-color);
        }
        .link-list a:hover {
            color: var(--primary-green);
            text-decoration: none;
        }
        .update-time {
            background-color: var(--primary-green);
            color: white;
            padding: 1rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            text-align: center;
            margin-top: 2rem;
        }
        .site-footer {
            background-color: var(--footer-bg);
            color: var(--footer-text);
            padding: 3rem 0 2rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            color: white;
            margin-bottom: 1rem;
        }
        .footer-nav ul {
            list-style: none;
        }
        .footer-nav li {
            margin-bottom: 0.8rem;
        }
        .footer-nav a {
            color: var(--footer-text);
        }
        .footer-nav a:hover {
            color: white;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            padding: 1rem;
            background-color: rgba(255,255,255,0.05);
            border-radius: var(--border-radius);
            margin: 1rem 0;
            text-align: center;
            font-weight: 600;
        }
        friend-link a {
            color: var(--primary-green);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 500px;
                margin-top: 1rem;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .lead {
                font-size: 1.1rem;
            }
        }