* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #0056b3;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ff6b35;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            font-size: 2rem;
        }
        .search-form {
            display: flex;
            flex: 1;
            max-width: 400px;
            margin: 0 20px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 15px;
            border: none;
            border-radius: 25px 0 0 25px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: #ff6b35;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 0 25px 25px 0;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-form button:hover {
            background: #e55a2b;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        nav {
            background-color: #2a5298;
            margin-top: 1rem;
        }
        .nav-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            padding: 0.5rem 0;
        }
        .nav-links li {
            margin: 0 15px;
        }
        .nav-links a {
            color: white;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 5px;
            transition: background 0.3s ease;
        }
        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .breadcrumb {
            padding: 10px 0;
            background-color: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin: 0 10px;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #495057;
        }
        .breadcrumb a:hover {
            color: #0056b3;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.5rem;
            color: #1e3c72;
            margin-bottom: 1.5rem;
            text-align: center;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #2a5298;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ff6b35;
        }
        h3 {
            font-size: 1.5rem;
            color: #333;
            margin: 1.5rem 0 0.75rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #555;
            margin: 1rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 1rem;
            border-left: 4px solid #ffc107;
            margin: 1.5rem 0;
            border-radius: 5px;
        }
        .image-container {
            text-align: center;
            margin: 2rem 0;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 10px;
            font-style: italic;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 2rem 0;
        }
        .link-item {
            background: #f1f8ff;
            padding: 15px;
            border-radius: 8px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .link-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        }
        .link-item a {
            font-weight: bold;
            display: block;
            margin-bottom: 5px;
        }
        .update-time {
            text-align: right;
            font-size: 0.9rem;
            color: #888;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #ddd;
        }
        .form-section {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid #dee2e6;
        }
        .form-section h3 {
            color: #1e3c72;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px;
            border: 1px solid #ced4da;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #0056b3;
            outline: none;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .rating label:hover,
        .rating input:checked ~ label {
            color: #ffc107;
        }
        .btn {
            background: #0056b3;
            color: white;
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s ease;
        }
        .btn:hover {
            background: #004494;
        }
        footer {
            background: #1e3c72;
            color: white;
            padding: 2rem 0;
            margin-top: auto;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ff6b35;
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin: 5px 0;
            color: #b3d4ff;
        }
        friend-link:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1rem;
            border-top: 1px solid #2a5298;
            font-size: 0.9rem;
            color: #b3d4ff;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
            .search-form {
                max-width: 100%;
                margin: 10px 0;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1rem;
                right: 20px;
            }
            nav {
                display: none;
                margin-top: 0;
            }
            nav.active {
                display: block;
            }
            .nav-links {
                flex-direction: column;
                padding: 0;
            }
            .nav-links li {
                margin: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .nav-links a {
                display: block;
                padding: 12px 20px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            article {
                padding: 1.5rem;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
        }