:root {
            --primary-color: #15b371; 
            --secondary-color: #f99e1a; 
            --dark-bg: #0f1923;
            --card-bg: #1e2a38;
            --text-light: #f0f0f0;
            --text-muted: #a0aec0;
            --accent-red: #eb4034;
            --accent-blue: #1e90ff;
            --border-radius: 8px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --font-body: 'Roboto', 'Open Sans', sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            line-height: 1.7;
            color: var(--text-light);
            background-color: var(--dark-bg);
            background-image: linear-gradient(rgba(15, 25, 35, 0.9), rgba(15, 25, 35, 0.95)), url('data:image/svg+xml,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><path d="M50,0 L100,50 L50,100 L0,50 Z" fill="%2315b371" opacity="0.03"/></svg>');
            background-size: 150px;
        }
        a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .site-header {
            background-color: rgba(15, 25, 35, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--primary-color);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-sm) 0;
        }
        .my-logo {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .my-logo:hover {
            color: var(--text-light);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--text-light);
            border-radius: 2px;
            transition: 0.3s;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -6px);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 500;
            padding: 0.5rem;
            border-radius: var(--border-radius);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a:hover {
            background-color: rgba(21, 179, 113, 0.2);
            text-decoration: none;
            color: var(--primary-color);
        }
        .breadcrumb {
            padding: var(--spacing-sm) 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            background-color: rgba(30, 42, 56, 0.5);
            margin-bottom: var(--spacing-md);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--secondary-color);
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        .search-container {
            background: var(--card-bg);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 12px 16px;
            border: 2px solid #2d3748;
            border-radius: var(--border-radius);
            background-color: #2d3748;
            color: var(--text-light);
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .search-btn {
            background: linear-gradient(135deg, var(--primary-color), #0d8a5a);
            color: white;
            border: none;
            padding: 0 24px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .search-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(21, 179, 113, 0.4);
            text-decoration: none;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
            margin: var(--spacing-lg) 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        .hero-image {
            width: 100%;
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-md);
            border: 3px solid var(--primary-color);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-sm) 0;
            border-top: 1px solid #2d3748;
            border-bottom: 1px solid #2d3748;
            margin: var(--spacing-md) 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .update-time {
            color: var(--secondary-color);
            font-weight: 600;
        }
        h1, h2, h3, h4 {
            font-family: var(--font-heading);
            color: var(--text-light);
            margin-top: var(--spacing-md);
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: var(--spacing-sm);
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-color);
            padding-left: 10px;
            border-left: 5px solid var(--primary-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--text-light);
        }
        h4 {
            font-size: 1.3rem;
            color: var(--text-muted);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--text-muted);
            font-weight: 300;
            margin-bottom: var(--spacing-md);
        }
        .highlight {
            background: linear-gradient(90deg, rgba(21, 179, 113, 0.1), transparent);
            padding: var(--spacing-sm);
            border-left: 4px solid var(--primary-color);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .important {
            color: var(--secondary-color);
            font-weight: 700;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-sm);
            margin: var(--spacing-md) 0;
        }
        .stat-card {
            background: rgba(30, 42, 56, 0.7);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            text-align: center;
            border: 1px solid #2d3748;
            transition: transform 0.3s, border-color 0.3s;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-color);
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .stat-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .sidebar-widget {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        .widget-title {
            font-size: 1.2rem;
            color: var(--secondary-color);
            margin-bottom: var(--spacing-sm);
            padding-bottom: 8px;
            border-bottom: 2px solid #2d3748;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #2d3748;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-light);
        }
        .related-links a:hover {
            color: var(--primary-color);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: var(--spacing-sm) 0;
        }
        .star {
            color: #4a5568;
            cursor: pointer;
            font-size: 1.8rem;
            transition: color 0.2s;
        }
        .star.active, .star:hover, .star:hover ~ .star {
            color: var(--secondary-color);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-sm);
        }
        .form-input, .form-textarea {
            padding: 12px;
            border-radius: var(--border-radius);
            border: 1px solid #2d3748;
            background-color: #2d3748;
            color: var(--text-light);
            font-family: var(--font-body);
        }
        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-submit {
            background: linear-gradient(135deg, var(--primary-color), #0d8a5a);
            color: white;
            border: none;
            padding: 12px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: transform 0.2s;
        }
        .form-submit:hover {
            transform: translateY(-2px);
        }
        .comment {
            background: rgba(30, 42, 56, 0.5);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-sm);
            border-left: 3px solid var(--primary-color);
        }
        .comment-author {
            color: var(--secondary-color);
            font-weight: 600;
        }
        .comment-date {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .site-footer {
            background-color: #0a0f14;
            padding: var(--spacing-lg) 0 var(--spacing-md);
            margin-top: var(--spacing-lg);
            border-top: 3px solid var(--primary-color);
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: var(--spacing-sm);
        }
        .footer-widget h3 {
            font-size: 1.2rem;
            color: var(--text-light);
            margin-bottom: var(--spacing-sm);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .friend-links {
            background: rgba(21, 179, 113, 0.05);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
        }
        friend-link {
            display: inline-block;
            margin-right: 15px;
            margin-bottom: 10px;
            padding: 5px 10px;
            background: rgba(30, 42, 56, 0.7);
            border-radius: 4px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(21, 179, 113, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid #2d3748;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.4rem; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--dark-bg);
                padding: var(--spacing-sm);
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
                border-top: 2px solid var(--primary-color);
            }
            .main-nav.active ul {
                display: flex;
            }
            .hamburger {
                display: flex;
            }
            .header-container {
                padding: var(--spacing-xs) 0;
            }
            .article-content {
                padding: var(--spacing-md);
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(21, 179, 113, 0.7); }
            70% { box-shadow: 0 0 0 10px rgba(21, 179, 113, 0); }
            100% { box-shadow: 0 0 0 0 rgba(21, 179, 113, 0); }
        }