* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #2a4365;
            --secondary: #c53030;
            --accent: #f6ad55;
            --light: #f7fafc;
            --dark: #1a202c;
            --gray: #718096;
            --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: 1.6;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        .header {
            background: linear-gradient(135deg, var(--primary) 0%, #1a365d 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 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo a {
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--accent);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--primary);
            padding: 1rem;
            transform: translateY(-100%);
            opacity: 0;
            transition: var(--transition);
            z-index: 999;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
        }
        .mobile-nav a {
            display: block;
            color: white;
            text-decoration: none;
            padding: 0.8rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            font-weight: 600;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.8rem 1.5rem;
            font-size: 0.9rem;
        }
        .breadcrumb-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem 1.5rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
        }
        .article-header {
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 3px solid var(--accent);
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            .article-header h1 {
                font-size: 2rem;
            }
        }
        .meta {
            display: flex;
            gap: 1.5rem;
            color: var(--gray);
            font-size: 0.9rem;
        }
        .meta i {
            margin-right: 0.3rem;
        }
        .article-content {
            font-size: 1.1rem;
        }
        .article-content h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .article-content h3 {
            font-size: 1.5rem;
            color: var(--secondary);
            margin: 2rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff5f5 0%, #fed7d7 100%);
            border-left: 4px solid var(--secondary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip {
            background-color: #ebf8ff;
            border-left: 4px solid #4299e1;
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .feature-img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .sidebar {
            position: sticky;
            top: 100px;
            height: fit-content;
        }
        .widget {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .search-form {
            display: flex;
            margin-top: 1rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem;
            border: 2px solid #cbd5e0;
            border-right: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #9b2c2c;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            margin: 1rem 0;
            font-size: 1.5rem;
            color: #e2e8f0;
        }
        .rating-stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: var(--accent);
        }
        .rating-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #cbd5e0;
            border-radius: 4px;
            margin: 1rem 0;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
        }
        .rating-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            width: 100%;
            font-weight: 600;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background-color: #1a365d;
        }
        .footer-links {
            background-color: #2d3748;
            padding: 3rem 1.5rem;
        }
        .links-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .web-link {
            background-color: #4a5568;
            padding: 1rem;
            border-radius: 6px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #5a6578;
            transform: translateY(-3px);
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: var(--accent);
        }
        .footer {
            background-color: var(--dark);
            color: white;
            text-align: center;
            padding: 2rem;
        }
        .footer p {
            margin-bottom: 0.5rem;
        }
        .bold { font-weight: 800; }
        .text-primary { color: var(--primary); }
        .text-secondary { color: var(--secondary); }
        .emoji { font-size: 1.2em; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }