* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1e40af;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --text-color: #1f2937;
            --light-bg: #f8fafc;
            --white: #ffffff;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-bg);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: var(--white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--primary-color);
            text-decoration: none;
        }
        .logo span {
            color: var(--secondary-color);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            padding: 8px 12px;
            border: 2px solid #e5e7eb;
            border-radius: 6px;
            width: 300px;
        }
        .search-btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 6px;
            cursor: pointer;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        nav {
            background: var(--primary-color);
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li a {
            color: white;
            text-decoration: none;
            padding: 1rem 1.5rem;
            display: block;
            transition: background 0.3s;
        }
        .nav-links li a:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            padding: 1rem 0;
            background: var(--light-bg);
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        main {
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: #6b7280;
            margin-bottom: 1rem;
        }
        .content-section {
            background: var(--white);
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .content-section h2 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            border-bottom: 2px solid var(--accent-color);
            padding-bottom: 0.5rem;
        }
        .content-section h3 {
            color: var(--secondary-color);
            margin: 1.5rem 0 1rem 0;
        }
        .content-section p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .highlight {
            background: #fef3c7;
            padding: 1rem;
            border-left: 4px solid var(--accent-color);
            margin: 1.5rem 0;
        }
        .feature-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem 0;
        }
        .team-approach-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }
        .approach-card {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px solid #e5e7eb;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .approach-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .approach-card h4 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .rating-system {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .rating-star {
            color: #d1d5db;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.2s;
        }
        .rating-star:hover,
        .rating-star.active {
            color: var(--accent-color);
        }
        .comment-form, .rating-form {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 8px 12px;
            border: 2px solid #e5e7eb;
            border-radius: 6px;
            font-size: 1rem;
        }
        .btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .btn:hover {
            background: #1e3a8a;
        }
        .internal-links {
            background: var(--white);
            padding: 2rem;
            margin: 2rem 0;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: var(--light-bg);
            padding: 1rem;
            border-radius: 6px;
            text-align: center;
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background: var(--primary-color);
            color: white;
            text-align: center;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 1rem;
        }
        .footer-links a {
            color: white;
            text-decoration: none;
        }
        .footer-links a:hover {
            text-decoration: underline;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                width: 100%;
                margin-top: 1rem;
            }
            .search-input {
                width: 100%;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
            }
            .nav-links.active {
                display: flex;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .team-approach-grid {
                grid-template-columns: 1fr;
            }
            .footer-links {
                flex-direction: column;
                gap: 1rem;
            }
        }