* {
            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%);
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(90deg, #1a237e 0%, #283593 100%);
            color: white;
            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;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(45deg, #ffd700, #ffecb3);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #e8eaf6;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            position: relative;
        }
        .desktop-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #ffd700;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: #ffd700;
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 80%;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .mobile-nav {
            display: none;
            background: #283593;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 1rem;
        }
        .mobile-nav a {
            color: #e8eaf6;
            text-decoration: none;
            font-weight: 600;
            display: block;
            padding: 0.8rem;
            border-radius: 4px;
            transition: background 0.3s ease;
        }
        .mobile-nav a:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #f8f9fa;
            border-bottom: 1px solid #e0e0e0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 0.5rem;
            color: #666;
        }
        .breadcrumb a {
            color: #1a237e;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1rem auto 0;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #1a237e;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s ease;
        }
        .search-input:focus {
            border-color: #ffd700;
        }
        .search-button {
            background: linear-gradient(45deg, #1a237e, #283593);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .search-button:hover {
            background: linear-gradient(45deg, #283593, #3949ab);
            transform: translateY(-2px);
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .content-area {
            background: white;
            border-radius: 16px;
            padding: 3rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
        }
        article h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffd700;
            padding-bottom: 1rem;
        }
        .article-meta {
            color: #666;
            margin-bottom: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.95rem;
        }
        .update-time {
            background: #e8f5e9;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-weight: 600;
        }
        article h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #e0e0e0;
        }
        article h3 {
            font-size: 1.6rem;
            color: #3949ab;
            margin: 2rem 0 1rem;
        }
        article h4 {
            font-size: 1.3rem;
            color: #5c6bc0;
            margin: 1.5rem 0 0.8rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            border-left: 5px solid #1a237e;
            padding: 1.8rem;
            margin: 2rem 0;
            border-radius: 0 12px 12px 0;
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
        }
        .highlight-box strong {
            color: #1a237e;
            font-size: 1.1rem;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .content-img:hover {
            transform: scale(1.02);
        }
        .internal-links {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links h3 {
            margin-top: 0;
            color: #1a237e;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.8rem;
            list-style: none;
        }
        .internal-links a {
            color: #3949ab;
            text-decoration: none;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
            display: block;
            transition: all 0.3s ease;
            border-left: 3px solid transparent;
        }
        .internal-links a:hover {
            background: #e8eaf6;
            border-left-color: #ffd700;
            padding-left: 1.2rem;
        }
        sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            color: #1a237e;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffd700;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star:hover,
        .star.active {
            color: #ffd700;
        }
        .rating-submit {
            background: linear-gradient(45deg, #1a237e, #283593);
            color: white;
            border: none;
            padding: 0.8rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .rating-submit:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(26, 35, 126, 0.2);
        }
        .comment-form textarea {
            width: 100%;
            min-height: 120px;
            padding: 1rem;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            margin-bottom: 1rem;
            font-family: inherit;
            resize: vertical;
            transition: border-color 0.3s ease;
        }
        .comment-form textarea:focus {
            border-color: #1a237e;
            outline: none;
        }
        .comment-submit {
            background: linear-gradient(45deg, #2e7d32, #4caf50);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .comment-submit:hover {
            background: linear-gradient(45deg, #1b5e20, #388e3c);
        }
        .comment-list {
            margin-top: 2rem;
        }
        .comment {
            background: #f8f9fa;
            padding: 1.2rem;
            border-radius: 8px;
            margin-bottom: 1.2rem;
            border-left: 4px solid #3949ab;
        }
        .comment-author {
            font-weight: 700;
            color: #1a237e;
            margin-bottom: 0.5rem;
        }
        .comment-date {
            color: #666;
            font-size: 0.9rem;
        }
        footer {
            background: linear-gradient(135deg, #1a237e 0%, #0d1536 100%);
            color: #e8eaf6;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #ffd700;
            margin-bottom: 1rem;
            display: block;
        }
        .footer-links h4 {
            color: #ffd700;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        .footer-links a {
            color: #c5cae9;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: #ffd700;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1.5rem;
            border-radius: 10px;
            margin-top: 1rem;
        }
        friend-link h4 {
            color: #ffd700;
            margin-bottom: 1rem;
        }
        friend-link a {
            color: #bbdefb;
            text-decoration: none;
            display: inline-block;
            padding: 0.5rem 1rem;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 6px;
            margin-right: 0.8rem;
            margin-bottom: 0.8rem;
            transition: all 0.3s ease;
        }
        friend-link a:hover {
            background: rgba(255, 215, 0, 0.2);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #9fa8da;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            article h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .header-container {
                padding: 0.8rem 0;
            }
            .content-area {
                padding: 2rem;
            }
            article h1 {
                font-size: 2rem;
            }
            article h2 {
                font-size: 1.7rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input,
            .search-button {
                width: 100%;
                border-radius: 8px;
                margin-bottom: 0.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .content-area {
                padding: 1.5rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content-area,
        .sidebar-widget {
            animation: fadeIn 0.8s ease-out;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .bold-highlight {
            background: linear-gradient(120deg, #fff9c4 0%, #fff9c4 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 700;
            color: #1a237e;
        }
        .paragraph-break {
            height: 1.5rem;
        }