* {
            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-color: #f8f9fa;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: #1a365d;
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            margin-top: 1.5rem;
            border-bottom: 4px solid #e63946;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            margin-top: 2.5rem;
            color: #2d3748;
            border-left: 5px solid #4cc9f0;
            padding-left: 15px;
        }
        h3 {
            font-size: clamp(1.5rem, 3vw, 1.9rem);
            margin-top: 2rem;
            color: #4a5568;
        }
        h4 {
            font-size: 1.3rem;
            margin-top: 1.5rem;
            color: #718096;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #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-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: #ffd700;
            text-decoration: none;
            font-family: 'Trebuchet MS', sans-serif;
            letter-spacing: -1px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: #fff;
            text-shadow: 0 0 10px #ffd700;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: rgba(255, 255, 255, 0.15);
            color: #ffd700;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 1rem 0;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: #718096;
        }
        .breadcrumb a {
            color: #4a5568;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #e63946;
            text-decoration: underline;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            font-size: 1.5rem;
            margin-top: 0;
            color: #1a365d;
            border-bottom: 2px solid #e63946;
            padding-bottom: 0.5rem;
        }
        .search-box, .comment-form, .rating-form {
            margin-bottom: 2rem;
        }
        .search-box input, .comment-form textarea, .comment-form input, .rating-form input {
            width: 100%;
            padding: 0.8rem 1rem;
            margin-bottom: 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-box input:focus, .comment-form textarea:focus, .comment-form input:focus {
            outline: none;
            border-color: #4cc9f0;
            box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #e63946, #ff6b6b);
            color: white;
            padding: 0.8rem 1.8rem;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            text-decoration: none;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(230, 57, 70, 0.3);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .star {
            font-size: 1.8rem;
            color: #cbd5e0;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star.active,
        .star:hover {
            color: #ffd700;
        }
        .intro {
            font-size: 1.2rem;
            font-weight: 600;
            color: #2d3748;
            background: #f0f9ff;
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 2rem;
            border-left: 5px solid #4cc9f0;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd70025 0%, #ffd70025 100%);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid #ffd700;
        }
        .highlight h3 {
            color: #b8860b;
            margin-top: 0;
        }
        blockquote {
            font-style: italic;
            color: #4a5568;
            border-left: 4px solid #e63946;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        img.article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s ease;
        }
        img.article-image:hover {
            transform: scale(1.02);
        }
        .link-list {
            background: #f7fafc;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .link-list h4 {
            margin-top: 0;
        }
        .link-list ul {
            list-style: none;
            column-count: 2;
            column-gap: 2rem;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            break-inside: avoid;
        }
        .link-list a {
            color: #3182ce;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .link-list a:hover {
            color: #e63946;
            text-decoration: underline;
        }
        .update-time {
            font-size: 0.9rem;
            color: #718096;
            text-align: right;
            margin-top: 3rem;
            padding-top: 1rem;
            border-top: 1px dashed #cbd5e0;
        }
        .update-time i {
            margin-right: 0.5rem;
        }
        .site-footer {
            background: #1a365d;
            color: #e2e8f0;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffd700;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #a0aec0;
            text-decoration: none;
            transition: color 0.3s;
        }
        friend-link a:hover {
            color: #ffd700;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #2d3748;
                padding: 1rem;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
            }
            .main-nav.active ul {
                display: flex;
            }
            .main-nav a {
                padding: 1rem;
            }
            .link-list ul {
                column-count: 1;
            }
            .article-content {
                padding: 1.5rem;
            }
        }
        .text-bold {
            font-weight: 800;
            color: #1a365d;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .separator {
            height: 1px;
            background: linear-gradient(to right, transparent, #cbd5e0, transparent);
            margin: 2.5rem 0;
        }