* {
            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%, #e4edf5 100%);
            background-attachment: fixed;
        }
        a {
            text-decoration: none;
            color: #2c5282;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a365d;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(90deg, #1a365d 0%, #2d3748 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;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #e53e3e;
        }
        .my-logo:hover {
            text-decoration: none;
            transform: scale(1.02);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        nav a {
            color: #e2e8f0;
            font-weight: 600;
            padding: 0.5rem 0.3rem;
            border-bottom: 2px solid transparent;
        }
        nav a:hover {
            color: #fff;
            border-bottom-color: #e53e3e;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #edf2f7;
            font-size: 0.9rem;
            border-bottom: 1px solid #cbd5e0;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #718096;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb a:hover {
            color: #1a365d;
        }
        main {
            padding: 2.5rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a365d;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #e53e3e;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2d3748;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.6rem;
            color: #4a5568;
            margin: 2rem 0 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #718096;
            margin: 1.5rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.05rem;
        }
        .intro {
            font-size: 1.2rem;
            color: #2d3748;
            font-weight: 500;
            background: #f7fafc;
            padding: 1.5rem;
            border-left: 5px solid #2c5282;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background: linear-gradient(120deg, #fed7d7 0%, #fed7d7 100%);
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .featured-image {
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            max-width: 800px;
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            color: #718096;
            padding: 0.8rem;
            background: #f7fafc;
        }
        blockquote {
            border-left: 4px solid #e53e3e;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #4a5568;
            background: #fef2f2;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .link-list {
            background: #ebf8ff;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.8rem;
        }
        .link-list li:before {
            content: "♠";
            margin-right: 10px;
            color: #2c5282;
        }
        aside {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget h3 {
            font-size: 1.4rem;
            color: #2d3748;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background: #2c5282;
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #1a365d;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #ffd700;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars span {
            transition: transform 0.2s;
        }
        .stars span:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            min-height: 120px;
            margin-bottom: 1rem;
        }
        .comment-form button {
            background: #e53e3e;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
            width: 100%;
        }
        .comment-form button:hover {
            background: #c53030;
        }
        footer {
            background: #1a202c;
            color: #e2e8f0;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: #fff;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links a {
            color: #cbd5e0;
        }
        .footer-links a:hover {
            color: #fff;
        }
        friend-link {
            display: block;
            background: #2d3748;
            padding: 1.2rem;
            border-radius: 8px;
            margin: 1rem 0;
            color: #cbd5e0;
        }
        friend-link a {
            color: #90cdf4;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a5568;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        .update-time {
            background: #fefcbf;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            display: inline-block;
            margin-bottom: 1.5rem;
            font-weight: 600;
            color: #744210;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav li {
                border-bottom: 1px solid #4a5568;
            }
            nav a {
                display: block;
                padding: 1rem;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.8rem;
            }
        }