* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #2c3e50;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #3498db;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #2c3e50 0%, #1a2530 100%);
            color: #ecf0f1;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #3498db, #9b59b6);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #3498db;
            transition: width 0.3s ease;
        }
        .main-nav a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #ecf0f1;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #ecf0f1;
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #7f8c8d;
            border-bottom: 1px solid #bdc3c7;
        }
        .breadcrumb a {
            color: #3498db;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: #fff;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background: #fff;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.05);
            height: fit-content;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget-title {
            font-size: 1.3rem;
            color: #2c3e50;
            border-bottom: 2px solid #3498db;
            padding-bottom: 0.5rem;
            margin-bottom: 1.2rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem;
            border: 1px solid #bdc3c7;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background: #3498db;
            color: white;
            border: none;
            padding: 0.8rem 1.2rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #2980b9;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .comment-form textarea, .comment-form input, .rating-form select {
            padding: 0.8rem;
            border: 1px solid #bdc3c7;
            border-radius: 6px;
            font-size: 1rem;
        }
        .comment-form button, .rating-form button {
            background: #2ecc71;
            color: white;
            border: none;
            padding: 0.9rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .comment-form button:hover, .rating-form button:hover {
            background: #27ae60;
        }
        h1 {
            font-size: 2.8rem;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #3498db;
            padding-bottom: 0.7rem;
        }
        h2 {
            font-size: 2.1rem;
            color: #34495e;
            margin: 2.5rem 0 1.2rem;
            padding-top: 1rem;
        }
        h3 {
            font-size: 1.7rem;
            color: #2c3e50;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #7f8c8d;
            margin: 1.8rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        strong {
            color: #2c3e50;
            font-weight: 700;
        }
        .intro {
            font-size: 1.2rem;
            background: #f1f8ff;
            padding: 1.5rem;
            border-left: 5px solid #3498db;
            margin-bottom: 2.5rem;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fffde7, #f9fbe7);
            border: 1px solid #ffeaa7;
            padding: 1.8rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #7f8c8d;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .content-link {
            color: #9b59b6;
            font-weight: 600;
            border-bottom: 1px dashed #9b59b6;
        }
        .content-link:hover {
            color: #8e44ad;
            border-bottom-style: solid;
        }
        .update-time {
            display: inline-block;
            background: #e74c3c;
            color: white;
            padding: 0.4rem 0.8rem;
            border-radius: 20px;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-title {
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            color: #3498db;
        }
        friend-link {
            display: block;
            margin-bottom: 0.7rem;
        }
        friend-link a {
            color: #bdc3c7;
        }
        friend-link a:hover {
            color: #3498db;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: #2c3e50;
                flex-direction: column;
                align-items: center;
                padding: 2rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.4s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: center;
                gap: 1.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 1.5rem;
            }
        }