* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #f0f4f8 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #6a5acd; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #ff69b4; text-decoration: underline; }
        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(90deg, #4b0082, #8a2be2);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(45deg, #ffd700, #ff69b4);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo:hover { text-decoration: none; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(255, 255, 255, 0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #888;
        }
        .breadcrumb a { color: #555; }
        .main-content {
            flex: 1;
            padding: 2.5rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }
        .article-header { margin-bottom: 2.5rem; }
        .article-header h1 {
            font-size: 2.8rem;
            color: #4b0082;
            line-height: 1.2;
            margin-bottom: 1rem;
            border-bottom: 3px solid #ff69b4;
            padding-bottom: 1rem;
        }
        .meta-info {
            display: flex;
            justify-content: space-between;
            color: #666;
            font-size: 0.95rem;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        .update-time { color: #d9534f; font-weight: 600; }
        .intro {
            font-size: 1.2rem;
            color: #555;
            background: #f8f9ff;
            padding: 1.5rem;
            border-left: 5px solid #6a5acd;
            border-radius: 8px;
            margin-bottom: 2.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #8a2be2;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #c9c2ff;
        }
        h3 {
            font-size: 1.6rem;
            color: #5d3fd3;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #7b68ee;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
            color: #444;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd70044 0%, #ffd70044 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        b, strong { color: #4b0082; }
        em { color: #ff69b4; font-style: italic; }
        .article-img {
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(106, 90, 205, 0.2);
            max-width: 800px;
        }
        .article-img figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.8rem;
            background: #f9f9ff;
        }
        ul, ol { margin: 1.5rem 0 1.5rem 2rem; }
        li { margin-bottom: 0.7rem; }
        .feature-box {
            background: #f0f8ff;
            border: 2px solid #b0e0e6;
            border-radius: 12px;
            padding: 2rem;
            margin: 2.5rem 0;
        }
        .feature-box h3 { margin-top: 0; color: #2e8b57; }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .search-form input,
        .comment-form textarea,
        .rating-form select {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1rem;
            border: 2px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
        }
        .comment-form textarea { min-height: 120px; resize: vertical; }
        .form-btn {
            background: linear-gradient(90deg, #6a5acd, #9370db);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .form-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(106, 90, 205, 0.4);
            text-decoration: none;
        }
        .stars { display: flex; gap: 0.5rem; margin: 1rem 0; }
        .star { font-size: 1.8rem; color: #ddd; cursor: pointer; transition: color 0.3s; }
        .star:hover,
        .star.active { color: #ffd700; }
        .sidebar {
            background: white;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: #4b0082;
            margin-top: 0;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid #ffb6c1;
        }
        .related-links { list-style: none; margin: 1.5rem 0; }
        .related-links li { margin-bottom: 1rem; }
        .related-links a {
            display: block;
            padding: 0.8rem;
            background: #f8f9ff;
            border-radius: 8px;
            border-left: 4px solid #6a5acd;
        }
        .related-links a:hover {
            background: #e6e6ff;
            text-decoration: none;
            transform: translateX(5px);
            transition: all 0.3s ease;
        }
        .site-footer {
            background: #2d2d2d;
            color: #ccc;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffb6c1;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
            color: #b0c4de;
        }
        friend-link:hover { color: #ff69b4; text-decoration: underline; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #4b0082;
                padding: 1rem;
                border-top: 2px solid #ff69b4;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            }
            .main-nav.active ul { display: flex; }
            .article-header h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .article-content { padding: 1.5rem; }
        }