* {
            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, #f9f9ff 0%, #f0f2ff 100%);
            max-width: 120rem;
            margin: 0 auto;
            padding: 0 1rem;
        }
        a {
            text-decoration: none;
            color: #2a5aa7;
            transition: color 0.3s ease, background-color 0.3s ease;
        }
        a:hover {
            color: #1d3f7a;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .site-header {
            background: linear-gradient(90deg, #1a237e 0%, #283593 50%, #3949ab 100%);
            color: white;
            padding: 1rem 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;
            flex-wrap: wrap;
            max-width: 120rem;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(90deg, #FFD700, #FFECB3);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            color: #e3f2fd;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 0.8rem 1.5rem;
            margin-top: 0.2rem;
            font-size: 0.9rem;
            max-width: 120rem;
            margin: 0.2rem auto 0;
        }
        .breadcrumb a {
            color: #5c6bc0;
        }
        .breadcrumb span {
            color: #777;
        }
        .search-container {
            max-width: 50rem;
            margin: 2rem auto;
            padding: 0 1.5rem;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(41, 98, 255, 0.2);
        }
        .search-form input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
        }
        .search-form button {
            background: linear-gradient(90deg, #2962ff, #448aff);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s ease;
        }
        .search-form button:hover {
            background: linear-gradient(90deg, #1a56db, #2962ff);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            max-width: 120rem;
            margin: 2rem auto;
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .sidebar {
            background-color: #f8f9ff;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffd700;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2.5rem 0 1.2rem;
            padding-top: 1rem;
            border-top: 1px dashed #ddd;
        }
        h3 {
            font-size: 1.6rem;
            color: #3949ab;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #5c6bc0;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            color: #555;
            background-color: #f3f5ff;
            padding: 1.5rem;
            border-left: 5px solid #448aff;
            margin-bottom: 2.5rem;
            border-radius: 0 8px 8px 0;
        }
        .highlight {
            background-color: #fffde7;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 5px solid #ffd600;
            margin: 2rem 0;
        }
        .image-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            max-width: 800px;
            margin: 0 auto;
            border: 5px solid white;
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .quote {
            font-style: italic;
            color: #555;
            border-left: 4px solid #9fa8da;
            padding-left: 1.5rem;
            margin: 2rem 0;
            background-color: #f9faff;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        strong {
            color: #1a237e;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .rating-widget, .comment-widget {
            background-color: #f0f7ff;
            padding: 2rem;
            border-radius: 12px;
            margin: 3rem 0;
            border: 1px solid #d1e9ff;
        }
        .rating-widget h3, .comment-widget h3 {
            margin-top: 0;
            color: #1565c0;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #ffb300;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #333;
        }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-group input:focus, .form-group textarea:focus {
            border-color: #448aff;
            outline: none;
            box-shadow: 0 0 0 3px rgba(68, 138, 255, 0.2);
        }
        .submit-btn {
            background: linear-gradient(90deg, #00c853, #64dd17);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #00b248, #4caf50);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 200, 83, 0.3);
        }
        .sidebar h3 {
            color: #1a237e;
            border-bottom: 2px solid #ffd700;
            padding-bottom: 0.5rem;
            margin-top: 0;
        }
        .link-list {
            list-style: none;
            padding-left: 0;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted #ddd;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .link-list i {
            color: #448aff;
            width: 1.2rem;
        }
        .update-time {
            background-color: #e8f5e9;
            padding: 1rem;
            border-radius: 8px;
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #2e7d32;
            text-align: center;
        }
        .site-footer {
            background: linear-gradient(90deg, #1a237e, #283593);
            color: #e3f2fd;
            padding: 3rem 1.5rem 1.5rem;
            margin-top: 4rem;
            border-radius: 12px 12px 0 0;
        }
        .footer-container {
            max-width: 120rem;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-section h4 {
            color: #ffd700;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #bbdefb;
        }
        friend-link a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #3949ab;
            color: #90a4ae;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: flex;
            }
            .main-nav a {
                padding: 1rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.2rem;
                right: 1.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 1.5rem;
            }
        }