* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #6a5acd;
            --secondary-color: #ff6b6b;
            --accent-color: #4ecdc4;
            --dark-color: #2d3047;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
            --text-color: #333;
            --text-light: #666;
            --border-color: #e1e5eb;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-color);
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 6px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
            color: white;
        }
        .section-padding {
            padding: 80px 0;
        }
        .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: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent-color);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            font-weight: 600;
            color: var(--dark-color);
            padding: 5px 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark-color);
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #f1f3f5;
            padding: 15px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 10px;
            color: var(--gray-color);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .search-container {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            padding: 40px 0;
            text-align: center;
            color: white;
        }
        .search-box {
            max-width: 600px;
            margin: 0 auto;
            position: relative;
        }
        .search-box input {
            width: 100%;
            padding: 18px 20px;
            border-radius: 50px;
            border: none;
            font-size: 1.1rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .search-box button {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--secondary-color);
            color: white;
            border: none;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: #ff5252;
        }
        .main-content {
            background-color: white;
            padding: 40px 0;
            min-height: 2000px;
        }
        .article-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            line-height: 1.8;
        }
        article h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 30px;
            color: var(--dark-color);
        }
        article h2 {
            font-size: 2rem;
            margin: 60px 0 25px;
            padding-bottom: 15px;
            border-bottom: 3px solid var(--accent-color);
            color: var(--dark-color);
        }
        article h3 {
            font-size: 1.5rem;
            margin: 40px 0 20px;
            color: var(--primary-color);
        }
        article h4 {
            font-size: 1.2rem;
            margin: 30px 0 15px;
            color: var(--text-color);
        }
        article p {
            margin-bottom: 25px;
            font-size: 1.1rem;
        }
        article strong {
            color: var(--dark-color);
            font-weight: 700;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .update-time {
            background-color: #fff9e6;
            padding: 10px 15px;
            border-radius: 6px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .featured-image {
            margin: 40px 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .content-highlight {
            background-color: #f0f7ff;
            border-left: 4px solid var(--accent-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
        }
        .content-warning {
            background-color: #fff3cd;
            border-left: 4px solid #ffc107;
            padding: 20px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
        }
        .sidebar {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: 12px;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            margin-bottom: 40px;
        }
        .sidebar-widget h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
            color: var(--dark-color);
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-left: 20px;
            position: relative;
        }
        .related-links li::before {
            content: '➤';
            position: absolute;
            left: 0;
            color: var(--accent-color);
        }
        .rating-section {
            background-color: #f9f9f9;
            padding: 40px;
            border-radius: 12px;
            margin: 60px 0;
            text-align: center;
        }
        .rating-title {
            font-size: 1.5rem;
            margin-bottom: 25px;
            color: var(--dark-color);
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 25px;
            flex-direction: row-reverse;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2.5rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: #ffc107;
        }
        .comments-section {
            margin: 80px 0;
        }
        .comments-section h2 {
            margin-bottom: 40px;
        }
        .comment-form {
            background-color: #f8f9fa;
            padding: 30px;
            border-radius: 12px;
            margin-bottom: 50px;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.2);
        }
        .comment-list {
            margin-top: 40px;
        }
        .comment {
            background-color: white;
            padding: 25px;
            border-radius: 12px;
            margin-bottom: 25px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .site-footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-section h3 {
            font-size: 1.2rem;
            margin-bottom: 25px;
            color: var(--accent-color);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #bbb;
        }
        .footer-links a:hover {
            color: white;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.1);
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .article-container {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-top: 40px;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: white;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                padding: 20px;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 20px;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.7rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
            .section-padding {
                padding: 50px 0;
            }
        }
        @media (max-width: 576px) {
            .header-container {
                padding: 15px;
            }
            .search-box input {
                padding: 15px;
                font-size: 1rem;
            }
            article h1 {
                font-size: 1.8rem;
            }
            .rating-section {
                padding: 30px 20px;
            }
            .comment-form {
                padding: 20px;
            }
        }