* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a365d;
            --secondary-color: #c53030;
            --accent-color: #ecc94b;
            --text-color: #2d3748;
            --light-bg: #f7fafc;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text-color);
            background-color: var(--light-bg);
        }
        header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2d3748 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo:hover {
            color: var(--accent-color);
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-links {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .search-form {
            display: flex;
            background: white;
            border-radius: 50px;
            overflow: hidden;
            padding: 0.3rem;
            margin-left: 1rem;
        }
        .search-form input {
            border: none;
            padding: 0.5rem 1rem;
            width: 200px;
            outline: none;
        }
        .search-form button {
            background: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.5rem 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #9b2c2c;
        }
        .breadcrumb {
            background: var(--light-bg);
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ul {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 0.5rem;
            list-style: none;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
        }
        main {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.3;
        }
        h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        h3 {
            color: var(--secondary-color);
            font-size: 1.4rem;
            margin: 2rem 0 0.8rem;
        }
        h4 {
            color: var(--primary-color);
            font-size: 1.2rem;
            margin: 1.5rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.1rem;
            background: linear-gradient(135deg, #f0f4f8 0%, #e6fffa 100%);
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid var(--secondary-color);
            margin-bottom: 2rem;
        }
        strong {
            color: var(--primary-color);
            font-weight: 700;
        }
        em {
            color: var(--secondary-color);
            font-style: italic;
        }
        .content-link {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--secondary-color);
            transition: var(--transition);
        }
        .content-link:hover {
            color: #9b2c2c;
            border-bottom-style: solid;
        }
        ul, ol {
            margin: 1rem 0 1rem 2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .featured-image {
            width: 100%;
            max-height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #718096;
            margin-top: -1.5rem;
            margin-bottom: 2rem;
        }
        aside {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            height: fit-content;
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        .rating-widget {
            background: linear-gradient(135deg, #f0fff4 0%, #e6f7ff 100%);
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }
        .stars {
            color: #ecc94b;
            font-size: 1.5rem;
            margin: 0.5rem 0;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 1rem;
        }
        .rating-form select,
        .rating-form textarea {
            padding: 0.5rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
        }
        .rating-form button {
            background: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.7rem;
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background: #9b2c2c;
        }
        .comments-section {
            margin-top: 3rem;
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .comment-form {
            display: grid;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .comment-form input,
        .comment-form textarea {
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-family: inherit;
        }
        .comment-form button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.8rem;
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background: #2d3748;
        }
        footer {
            background: var(--primary-color);
            color: white;
            padding: 3rem 1rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: var(--accent-color);
            margin-bottom: 1.5rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            list-style: none;
        }
        .friend-links a {
            color: #cbd5e0;
            text-decoration: none;
            padding: 0.3rem 0.6rem;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            transition: var(--transition);
        }
        .friend-links a:hover {
            color: var(--accent-color);
            background: rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #cbd5e0;
            font-size: 0.9rem;
        }
        .update-time {
            background: var(--accent-color);
            color: var(--primary-color);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 1.5rem;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--primary-color);
                flex-direction: column;
                padding: 1rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                width: 100%;
                margin: 1rem 0 0 0;
            }
            .search-form input {
                width: 100%;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, aside, .comments-section {
            animation: fadeIn 0.5s ease-out;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff8e1 0%, #e3f2fd 100%);
            border-left: 4px solid var(--secondary-color);
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 2rem 0;
        }
        .provider-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            transition: var(--transition);
        }
        .provider-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }