* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }
        :root {
            --primary: #1a73e8;
            --secondary: #34a853;
            --accent: #ea4335;
            --dark: #202124;
            --light: #f8f9fa;
            --gray: #dadce0;
            --text: #3c4043;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .py-1 { padding: 1rem 0; }
        .py-2 { padding: 2rem 0; }
        .my-2 { margin: 2rem 0; }
        .text-center { text-align: center; }
        .hidden { display: none !important; }
        .btn {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 12px 24px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background: var(--accent);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .site-header {
            background: var(--dark);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #1a73e8, #34a853);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .my-logo a { color: inherit; background: none; }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
        }
        .nav-desktop a {
            color: var(--light);
            font-weight: 500;
        }
        .nav-desktop a:hover {
            color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: var(--dark);
            padding: 1rem;
            border-top: 1px solid #333;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 12px;
            border-bottom: 1px solid #333;
        }
        .breadcrumb {
            background: #f1f3f4;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #5f6368;
        }
        .breadcrumb i { margin: 0 8px; }
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1556056504-5c7696c4c28d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            padding: 4rem 1rem;
            text-align: center;
            margin-bottom: 2rem;
            border-radius: 0 0 20px 20px;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.5rem; }
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.9;
        }
        .main-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-wrapper { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 16px;
            box-shadow: var(--shadow);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 2px solid var(--gray);
            padding-bottom: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .update-time {
            color: #5f6368;
            font-size: 0.95rem;
        }
        .article-content h1 { font-size: 2.8rem; margin-bottom: 1.5rem; color: var(--dark); }
        .article-content h2 { font-size: 2rem; margin: 2.5rem 0 1rem; color: var(--primary); padding-bottom: 0.5rem; border-bottom: 3px solid var(--secondary); }
        .article-content h3 { font-size: 1.6rem; margin: 2rem 0 1rem; color: var(--dark); }
        .article-content h4 { font-size: 1.3rem; margin: 1.5rem 0 0.8rem; color: #5a5a5a; }
        .article-content p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-content blockquote {
            border-left: 5px solid var(--accent);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background: #f9f9f9;
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
        }
        .article-content ul, .article-content ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            border-left: 5px solid var(--primary);
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 2rem 0;
        }
        .feature-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            margin: 2rem 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: 16px;
            box-shadow: var(--shadow);
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .widget h3 i { color: var(--primary); }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 14px;
            border: 2px solid var(--gray);
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 24px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-size: 1.1rem;
        }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 1.5rem 0;
        }
        .rating-widget .stars i {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget .stars i:hover,
        .rating-widget .stars i.active {
            color: #ffc107;
        }
        .rating-form button { width: 100%; }
        .comment-list {
            max-height: 400px;
            overflow-y: auto;
            margin-bottom: 1.5rem;
        }
        .comment {
            padding: 1rem;
            border-bottom: 1px solid #eee;
        }
        .comment:last-child { border: none; }
        .comment-author {
            font-weight: bold;
            color: var(--primary);
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid var(--gray);
            border-radius: 10px;
            resize: vertical;
            min-height: 120px;
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        .site-footer {
            background: var(--dark);
            color: white;
            margin-top: auto;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }
        .footer-links h4 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: #fff;
        }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a {
            color: #bdc1c6;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        friend-link {
            display: block;
            background: #2d2e30;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1rem 0;
            border-left: 4px solid var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            color: #9aa0a6;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .article-content { padding: 1.5rem; }
            .article-content h1 { font-size: 2.2rem; }
            .article-content h2 { font-size: 1.8rem; }
            .hero { padding: 2.5rem 1rem; }
            .main-wrapper { gap: 1.5rem; }
        }