:root {
            --primary: #1a73e8;
            --primary-dark: #0d47a1;
            --secondary: #fbbc04;
            --dark: #202124;
            --light: #f8f9fa;
            --gray: #5f6368;
            --gray-light: #dadce0;
            --success: #34a853;
            --danger: #ea4335;
            --shadow: 0 2px 10px rgba(0,0,0,0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(45deg, var(--secondary), #fff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-links {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background: var(--light);
            padding: 1rem 0;
            border-bottom: 1px solid var(--gray-light);
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .search-box {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 2rem 0;
        }
        .search-form {
            display: flex;
            gap: 10px;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid var(--gray-light);
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary);
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--primary-dark);
        }
        main {
            padding: 2rem 0;
        }
        article {
            max-width: 800px;
            margin: 0 auto;
        }
        .article-header {
            margin-bottom: 3rem;
            text-align: center;
        }
        h1 {
            font-size: 2.5rem;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: var(--dark);
        }
        h2 {
            font-size: 2rem;
            margin: 3rem 0 1.5rem;
            color: var(--primary-dark);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary);
        }
        h3 {
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
            color: var(--dark);
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .highlight {
            background: linear-gradient(120deg, var(--secondary) 0%, var(--secondary) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: 600;
        }
        .featured-image {
            width: 100%;
            max-width: 800px;
            margin: 2rem auto;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s ease;
        }
        .featured-image:hover img {
            transform: scale(1.02);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            padding: 0.5rem;
            background: var(--light);
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .tip-card {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .tip-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }
        .tip-card i {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .user-interaction {
            background: var(--light);
            padding: 3rem;
            border-radius: var(--radius);
            margin: 4rem 0;
        }
        .rating-section, .comment-section {
            margin-bottom: 2rem;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            font-size: 2rem;
            color: var(--gray-light);
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating input:checked ~ label {
            color: var(--secondary);
        }
        .comment-form textarea {
            width: 100%;
            min-height: 150px;
            padding: 1rem;
            border: 2px solid var(--gray-light);
            border-radius: var(--radius);
            margin: 1rem 0;
            font-family: inherit;
            resize: vertical;
        }
        .submit-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background: var(--primary-dark);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .web-link {
            background: var(--light);
            padding: 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: var(--primary);
            color: white;
        }
        .web-link:hover a {
            color: white;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: var(--gray-light);
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                flex-direction: column;
                background: var(--primary-dark);
                padding: 2rem;
                transition: var(--transition);
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                left: 0;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .user-interaction {
                padding: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-btn {
                padding: 12px;
            }
        }