:root {
            --primary-color: #FF6B00;
            --secondary-color: #1A237E;
            --dark-bg: #121212;
            --light-bg: #f8f9fa;
            --text-dark: #333;
            --text-light: #f1f1f1;
            --accent-color: #00E5FF;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--light-bg);
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--border-radius);
        }
        ul, ol {
            list-style-position: inside;
            padding-left: 1.2em;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .primary-color { color: var(--primary-color); }
        .secondary-bg { background-color: var(--secondary-color); color: var(--text-light); }
        .section-padding { padding: 60px 0; }
        .mb-2 { margin-bottom: 2rem; }
        .emoji { font-size: 1.2em; }
        .site-header {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--secondary-color) 100%);
            color: var(--text-light);
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--box-shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            background: linear-gradient(to right, var(--primary-color), var(--accent-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .nav-desktop ul {
            display: flex;
            gap: 30px;
            list-style: none;
        }
        .nav-desktop a {
            padding: 8px 12px;
            border-radius: var(--border-radius);
            font-weight: 600;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: var(--text-light);
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: var(--dark-bg);
            flex-direction: column;
            padding: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            box-shadow: 0 10px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile ul {
            list-style: none;
            width: 100%;
        }
        .nav-mobile li {
            margin-bottom: 15px;
        }
        .nav-mobile a {
            display: block;
            padding: 12px;
            border-radius: var(--border-radius);
            border-left: 3px solid transparent;
        }
        .nav-mobile a:hover {
            border-left-color: var(--primary-color);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .breadcrumb {
            padding: 15px 20px;
            background-color: rgba(0, 0, 0, 0.05);
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .search-container {
            max-width: 600px;
            margin: 40px auto;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            box-shadow: var(--box-shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-input {
            flex-grow: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #e05a00;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .article-header {
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 25px;
            margin-bottom: 40px;
        }
        .article-title {
            font-size: 2.8rem;
            color: var(--secondary-color);
            line-height: 1.2;
            margin-bottom: 15px;
        }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        .update-time {
            color: var(--primary-color);
            font-weight: 600;
        }
        .content-section {
            margin-bottom: 60px;
        }
        .content-section h2 {
            font-size: 2.2rem;
            color: var(--secondary-color);
            margin: 40px 0 25px;
            padding-bottom: 10px;
            border-bottom: 1px dashed #ccc;
        }
        .content-section h3 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin: 30px 0 20px;
        }
        .content-section h4 {
            font-size: 1.4rem;
            color: #555;
            margin: 25px 0 15px;
        }
        .content-section p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff8e1, #ffecb3);
            border-left: 5px solid var(--primary-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            box-shadow: 0 3px 8px rgba(0,0,0,0.08);
        }
        .img-with-caption {
            margin: 40px auto;
            text-align: center;
        }
        .img-with-caption figcaption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .related-links {
            background-color: #e3f2fd;
            padding: 25px;
            border-radius: var(--border-radius);
            margin: 40px 0;
        }
        .related-links h4 {
            color: var(--secondary-color);
            margin-bottom: 15px;
        }
        .related-links ul {
            list-style-type: square;
            column-count: 2;
        }
        .related-links li {
            margin-bottom: 10px;
            break-inside: avoid;
        }
        .related-links a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .widget-title {
            font-size: 1.4rem;
            color: var(--secondary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .stars {
            display: flex;
            gap: 10px;
            justify-content: center;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 10px;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #FFD700;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: #555;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 15px;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.2);
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 18px;
            border-radius: var(--border-radius);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: #e05a00;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(255, 107, 0, 0.3);
        }
        .site-footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding-top: 60px;
            margin-top: 80px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-widget h4 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            color: var(--accent-color);
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            padding: 15px;
            background-color: rgba(255,255,255,0.05);
            border-radius: var(--border-radius);
            margin-bottom: 15px;
            border: 1px solid rgba(255,255,255,0.1);
        }
        friend-link:hover {
            background-color: rgba(255,107,0,0.1);
            border-color: var(--primary-color);
        }
        .copyright {
            text-align: center;
            padding: 25px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-desktop { display: none; }
            .article-title { font-size: 2.2rem; }
            .article-content { padding: 25px; }
            .content-section h2 { font-size: 1.8rem; }
            .content-section h3 { font-size: 1.5rem; }
            .related-links ul { column-count: 1; }
            .header-container, .footer-container {
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }
        }