* {
            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;
            max-width: 100%;
            overflow-x: hidden;
        }
        a {
            color: #1a6bc4;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e63946;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0c2461 0%, #1a6bc4 100%);
            color: white;
            padding: 1rem 0;
            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;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #ffd166;
        }
        .my-logo:hover {
            color: #ffd166;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: #ffd166;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #ffd166;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #495057;
        }
        .breadcrumb a:hover {
            color: #1a6bc4;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            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);
        }
        .article-header {
            margin-bottom: 2.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid #f1f3f5;
        }
        h1 {
            font-size: 2.8rem;
            color: #0c2461;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: #6c757d;
            font-size: 0.95rem;
            margin-bottom: 1rem;
        }
        .update-time {
            color: #e63946;
            font-weight: 600;
        }
        h2 {
            font-size: 2rem;
            color: #1a6bc4;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #ced4da;
        }
        h3 {
            font-size: 1.6rem;
            color: #343a40;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #495057;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight-box {
            background: linear-gradient(120deg, #f8f9fa 0%, #e9ecef 100%);
            border-left: 5px solid #1a6bc4;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        blockquote {
            font-style: italic;
            color: #555;
            border-left: 4px solid #ffd166;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        em {
            color: #e63946;
            font-style: normal;
            font-weight: 600;
        }
        strong {
            color: #0c2461;
            font-weight: 700;
        }
        .featured-image {
            margin: 2.5rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.12);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #6c757d;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .widget-title {
            font-size: 1.4rem;
            color: #0c2461;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffd166;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .widget-title i {
            color: #e63946;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1rem;
            border: 2px solid #ced4da;
            border-right: none;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-button {
            background: #1a6bc4;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-button:hover {
            background: #0c2461;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        .form-input, .form-textarea, .form-select {
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffd166;
            cursor: pointer;
        }
        .star-rating i:hover {
            color: #ff9e00;
        }
        .submit-button {
            background: linear-gradient(to right, #1a6bc4, #0c2461);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .submit-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(26, 107, 196, 0.3);
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #f1f3f5;
        }
        .related-links li:last-child {
            margin-bottom: 0;
            border-bottom: none;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #343a40;
            font-weight: 500;
        }
        .related-links a:hover {
            color: #1a6bc4;
        }
        .related-links i {
            color: #e63946;
            font-size: 0.9rem;
        }
        .site-footer {
            background: #0c2461;
            color: #e9ecef;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            margin-bottom: 1rem;
            display: inline-block;
        }
        .footer-about p {
            font-size: 1rem;
            margin-bottom: 1.5rem;
        }
        .footer-links h4, .footer-contact h4 {
            font-size: 1.3rem;
            color: #ffd166;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .footer-links h4::after, .footer-contact h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: #e63946;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #adb5bd;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color 0.3s, transform 0.3s;
        }
        .footer-links a:hover {
            color: #ffd166;
            transform: translateX(5px);
        }
        .footer-links i {
            font-size: 0.8rem;
        }
        friend-link {
            display: block;
            background: #1a6bc4;
            padding: 1.2rem;
            border-radius: 8px;
            margin: 1.5rem 0;
        }
        friend-link a {
            color: white;
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
        }
        friend-link a:hover {
            color: #ffd166;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2d3748;
            color: #adb5bd;
            font-size: 0.95rem;
        }
        .copyright a {
            color: #ffd166;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 80%;
                height: calc(100vh - 70px);
                background: #0c2461;
                padding: 2rem;
                transition: left 0.4s ease;
                box-shadow: 5px 0 15px rgba(0,0,0,0.2);
                z-index: 999;
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .article-content {
                padding: 1.8rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .header-container {
                padding: 0 15px;
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .article-content {
            animation: fadeInUp 0.6s ease-out;
        }
        .highlight-box, .featured-image, .sidebar-widget {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .highlight-box:hover, .featured-image:hover, .sidebar-widget:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.15);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .text-center {
            text-align: center;
        }
        .mb-4 {
            margin-bottom: 2rem;
        }
        .mt-4 {
            margin-top: 2rem;
        }