* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #2c5aa0;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1d3d6f;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(135deg, #4a90e2, #2c5aa0);
            color: white;
            padding: 12px 24px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(44, 90, 160, 0.2);
        }
        .btn:hover {
            background: linear-gradient(135deg, #2c5aa0, #1d3d6f);
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(44, 90, 160, 0.3);
        }
        section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2.5rem;
            color: #1d3d6f;
            margin-bottom: 30px;
            text-align: center;
            position: relative;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, #4a90e2, #2c5aa0);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        header {
            background: white;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: #2c5aa0;
            display: flex;
            align-items: center;
        }
        .logo a i {
            margin-right: 10px;
            color: #4a90e2;
        }
        .logo a:hover {
            color: #1d3d6f;
        }
        nav.desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav.desktop-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            position: relative;
        }
        nav.desktop-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: #4a90e2;
            bottom: -5px;
            left: 0;
            transition: width 0.3s ease;
        }
        nav.desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #2c5aa0;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: white;
            padding: 20px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin: 15px 0;
        }
        .mobile-nav a {
            font-weight: 600;
            font-size: 1.2rem;
            display: block;
            padding: 10px;
            border-radius: 8px;
            transition: background 0.3s;
        }
        .mobile-nav a:hover {
            background: #f0f5ff;
        }
        .breadcrumb {
            padding: 15px 20px;
            background: #f0f5ff;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb a:hover {
            color: #2c5aa0;
        }
        .breadcrumb span {
            color: #999;
        }
        .hero {
            background: linear-gradient(rgba(29, 61, 111, 0.85), rgba(44, 90, 160, 0.9)), url('https://images.unsplash.com/photo-1518837695005-2083093ee35b?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
            padding: 100px 20px;
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.95;
        }
        .search-container {
            max-width: 600px;
            margin: 40px auto;
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-form input {
            flex: 1;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-form input:focus {
            outline: none;
            border-color: #4a90e2;
        }
        .content-section {
            background: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.05);
            margin-bottom: 40px;
        }
        .content-section h2 {
            color: #1d3d6f;
            margin: 25px 0 15px;
            font-size: 2rem;
        }
        .content-section h3 {
            color: #2c5aa0;
            margin: 20px 0 10px;
            font-size: 1.5rem;
        }
        .content-section h4 {
            color: #4a90e2;
            margin: 15px 0 8px;
            font-size: 1.2rem;
        }
        .content-section p {
            margin-bottom: 15px;
            font-size: 1.1rem;
            line-height: 1.7;
        }
        .content-section ul, .content-section ol {
            margin-left: 20px;
            margin-bottom: 15px;
        }
        .content-section li {
            margin-bottom: 8px;
        }
        .highlight {
            background: linear-gradient(120deg, #e1f0ff 0%, #f0f5ff 100%);
            border-left: 5px solid #4a90e2;
            padding: 20px;
            border-radius: 0 10px 10px 0;
            margin: 25px 0;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            max-width: 800px;
            margin: 0 auto;
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .rating-section, .comment-section {
            background: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.05);
            margin: 40px 0;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        .rating-form input, .comment-form input, .comment-form textarea {
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .comment-form textarea {
            min-height: 150px;
            resize: vertical;
        }
        .rating-form input:focus, .comment-form input:focus, .comment-form textarea:focus {
            outline: none;
            border-color: #4a90e2;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ffc107;
            justify-content: center;
            cursor: pointer;
            margin: 15px 0;
        }
        .star-rating i {
            transition: transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .related-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .link-card {
            background: white;
            border-radius: 10px;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .link-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .link-card a {
            font-weight: 600;
            font-size: 1.1rem;
            display: block;
            margin-bottom: 10px;
        }
        .link-card p {
            color: #666;
            font-size: 0.95rem;
        }
        footer {
            background: #1d3d6f;
            color: white;
            padding: 60px 20px 30px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: #fff;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section li {
            margin-bottom: 10px;
        }
        .footer-section a {
            color: #c2d6ff;
        }
        .footer-section a:hover {
            color: white;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.1);
            padding: 15px;
            border-radius: 8px;
            margin: 10px 0;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
        }
        friend-link a {
            color: white;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #c2d6ff;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            .section-title {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .content-section {
                padding: 25px;
            }
            .search-form {
                flex-direction: column;
            }
            .rating-form, .comment-form {
                padding: 0;
            }
        }
        @media (max-width: 576px) {
            .hero {
                padding: 70px 20px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .content-section h2 {
                font-size: 1.6rem;
            }
            .content-section h3 {
                font-size: 1.3rem;
            }
        }