:root {
            --primary: #1e3a8a;
            --secondary: #dc2626;
            --accent: #059669;
            --light: #f8fafc;
            --dark: #0f172a;
            --gray: #64748b;
            --transition: all 0.3s ease;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        .site-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--secondary);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            transition: var(--transition);
            padding: 0.5rem;
        }
        .nav-desktop a:hover {
            color: var(--secondary);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background: white;
            padding: 1rem;
            box-shadow: var(--shadow);
            transform: translateY(-100%);
            opacity: 0;
            transition: var(--transition);
            z-index: 999;
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
        }
        .mobile-nav a {
            display: block;
            padding: 0.8rem 0;
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb {
            max-width: 1200px;
            margin: 1rem auto;
            padding: 0 1rem;
        }
        .breadcrumb a {
            color: var(--gray);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        article {
            background: white;
            border-radius: var(--radius);
            padding: 2rem;
            margin: 2rem auto;
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
        }
        h2 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.4rem;
            color: var(--accent);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--gray);
            font-weight: 500;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fef3c7;
            border-left: 4px solid #f59e0b;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: var(--primary);
            color: white;
            padding: 1.5rem;
            border-radius: var(--radius);
            text-align: center;
        }
        .stat-card i {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .stat-card h4 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }
        .float-right {
            float: right;
            margin: 0 0 1rem 2rem;
            max-width: 400px;
        }
        @media (max-width: 768px) {
            .float-right {
                float: none;
                margin: 1rem auto;
                display: block;
            }
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary), #2563eb);
            color: white;
            padding: 2rem;
            border-radius: var(--radius);
            margin: 3rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto;
        }
        .search-input {
            flex: 1;
            padding: 1rem;
            border: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-button:hover {
            background: #b91c1c;
        }
        .user-feedback {
            margin: 3rem 0;
            padding: 2rem;
            background: #f8fafc;
            border-radius: var(--radius);
        }
        .rating-system {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .stars {
            display: flex;
            gap: 0.2rem;
        }
        .star {
            color: #d1d5db;
            cursor: pointer;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .star.active,
        .star:hover {
            color: #fbbf24;
        }
        .comment-form {
            display: grid;
            gap: 1rem;
            margin-top: 2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        input, textarea {
            padding: 0.8rem;
            border: 1px solid #cbd5e1;
            border-radius: var(--radius);
            font-family: inherit;
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            background: var(--accent);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            justify-self: start;
        }
        .submit-button:hover {
            background: #047857;
        }
        footer {
            background: var(--dark);
            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;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
        }
        friend-link a {
            color: #60a5fa;
            text-decoration: none;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .text-bold {
            font-weight: 700;
        }
        .text-primary {
            color: var(--primary);
        }
        .text-center {
            text-align: center;
        }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }