* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100%;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.3;
            color: #1a365d;
            margin-bottom: 1rem;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid #e63946;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #2d3748;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.7rem;
            color: #4a5568;
        }
        h4 {
            font-size: 1.4rem;
            color: #718096;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        a {
            color: #3182ce;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e63946;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        strong {
            color: #1a365d;
            font-weight: 700;
        }
        em {
            color: #718096;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
            color: white;
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: #fff;
            text-decoration: none;
            background: linear-gradient(90deg, #e63946, #f4a261);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo a:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: #e2e8f0;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: white;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb-list li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #718096;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb a:hover {
            color: #e63946;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 3rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px dashed #e2e8f0;
            color: #718096;
            font-size: 0.95rem;
        }
        .update-time {
            background-color: #ffeaa7;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-weight: 600;
        }
        .featured-img {
            margin: 2.5rem 0;
            text-align: center;
        }
        .featured-img figcaption {
            font-style: italic;
            color: #718096;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            padding: 1.8rem;
            border-radius: 16px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
        }
        .sidebar-widget h3 {
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #e63946;
        }
        .search-form {
            display: flex;
            margin-top: 1rem;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-input:focus {
            border-color: #3182ce;
        }
        .search-button {
            background: linear-gradient(to right, #3182ce, #2c5282);
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: opacity 0.3s;
        }
        .search-button:hover {
            opacity: 0.9;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #4a5568;
        }
        .form-control {
            padding: 0.8rem 1rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-control:focus {
            border-color: #3182ce;
            outline: none;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffd700;
            cursor: pointer;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .submit-button {
            background: linear-gradient(to right, #38a169, #2f855a);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: opacity 0.3s;
            margin-top: 1rem;
        }
        .submit-button:hover {
            opacity: 0.9;
        }
        .site-footer {
            background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
            color: #e2e8f0;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 1rem;
            background: linear-gradient(90deg, #e63946, #f4a261);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            list-style: none;
        }
        .friend-links a {
            color: #90cdf4;
            padding: 0.5rem 1rem;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            transition: all 0.3s;
        }
        .friend-links a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid #4a5568;
            color: #a0aec0;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                gap: 0;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                width: 100%;
                text-align: center;
            }
            .nav-links a {
                display: block;
                padding: 1rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .content-wrapper {
                gap: 2rem;
            }
        }
        .highlight-box {
            background: linear-gradient(120deg, #ffeaa7, #a5d6a7);
            border-left: 6px solid #e63946;
            padding: 1.8rem;
            margin: 2rem 0;
            border-radius: 0 12px 12px 0;
            font-size: 1.1rem;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
            margin: 2rem 0;
        }
        .tag {
            background-color: #edf2f7;
            color: #4a5568;
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        .tag:hover {
            background-color: #3182ce;
            color: white;
            transform: translateY(-3px);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: #e63946;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            text-decoration: none;
            box-shadow: 0 5px 15px rgba(230, 57, 70, 0.4);
            transition: all 0.3s;
            z-index: 99;
        }
        .back-to-top:hover {
            background-color: #c53030;
            transform: translateY(-5px);
        }