* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a { color: #2c5aa0; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e63946; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5em; margin: 1em 0; }
        p { margin-bottom: 1.2em; }
        h1 { font-size: 2.8rem; margin: 1em 0 0.5em; color: #1d3557; line-height: 1.2; border-bottom: 3px solid #e63946; padding-bottom: 0.3em; }
        h2 { font-size: 2.1rem; margin: 1.8em 0 0.8em; color: #2c5aa0; }
        h3 { font-size: 1.6rem; margin: 1.5em 0 0.7em; color: #457b9d; }
        h4 { font-size: 1.3rem; margin: 1.2em 0 0.5em; color: #6a8aaf; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.4rem; }
            h4 { font-size: 1.2rem; }
        }
        .site-header {
            background: linear-gradient(135deg, #1d3557 0%, #457b9d 100%);
            color: white;
            padding: 1.5rem 0;
            border-radius: 0 0 12px 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo span { color: #ffcc00; }
        .my-logo:hover { color: #ffcc00; }
        .my-logo:hover span { color: white; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            margin: 0;
        }
        .main-nav a {
            color: #e0fbfc;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: #ffcc00;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #1d3557;
                padding: 1rem;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
            }
            .main-nav ul.show { display: flex; }
            .main-nav ul li { width: 100%; }
            .main-nav a { display: block; padding: 0.8rem; }
        }
        .breadcrumb {
            padding: 0.8rem 1rem;
            background-color: #edf2f7;
            border-radius: 8px;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #e63946; }
        .breadcrumb span { color: #888; margin: 0 8px; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #eee;
        }
        .update-time { color: #e63946; font-weight: 600; }
        .featured-image {
            width: 100%;
            border-radius: 10px;
            overflow: hidden;
            margin: 2rem 0;
            border: 1px solid #ddd;
        }
        .featured-image img { width: 100%; height: auto; }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.5rem;
            font-size: 0.9rem;
        }
        .highlight-box {
            background: linear-gradient(to right, #f0f7ff, #e6f0ff);
            border-left: 5px solid #2c5aa0;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box p { margin-bottom: 0; }
        blockquote {
            font-size: 1.2rem;
            font-style: italic;
            color: #555;
            border-left: 4px solid #ffcc00;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }
        .widget h3 {
            margin-top: 0;
            color: #1d3557;
            font-size: 1.3rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group { display: flex; flex-direction: column; gap: 0.5rem; }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #2c5aa0;
            box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, #2c5aa0, #457b9d);
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            display: inline-block;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #e63946, #f4a261);
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        }
        .star-rating {
            display: flex;
            justify-content: space-between;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #ffcc00;
        }
        .site-footer {
            background-color: #1d3557;
            color: #e0fbfc;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: 12px 12px 0 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffcc00;
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1rem 0;
        }
        .friend-links a {
            background-color: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            border-radius: 5px;
            color: #e0fbfc;
        }
        .friend-links a:hover {
            background-color: #e63946;
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }