:root {
            --primary: #0066b3; 
            --secondary: #d21034; 
            --accent: #f9a01b; 
            --dark: #1a1a1a;
            --light: #f8f9fa;
            --gray: #6c757d;
            --shadow: 0 5px 15px rgba(0,0,0,0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul { list-style: none; }
        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(to right, var(--primary), #005299);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(to right, #005299, var(--primary));
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .section-padding { padding: 60px 0; }
        .text-center { text-align: center; }
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
        }
        .logo i { color: var(--accent); margin-right: 8px; }
        .logo span { color: var(--secondary); }
        .desktop-nav ul {
            display: flex;
            gap: 25px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1rem;
            padding: 5px 0;
            position: relative;
        }
        .desktop-nav a:hover { color: var(--primary); }
        .desktop-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .desktop-nav a:hover:after { width: 100%; }
        .search-box {
            display: flex;
            background: var(--light);
            border-radius: 50px;
            overflow: hidden;
            padding: 5px;
            width: 300px;
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0 15px;
            outline: none;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 50px;
            cursor: pointer;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark);
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: white;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            padding: 20px;
            transform: translateY(-150%);
            transition: transform 0.4s ease;
            z-index: 999;
        }
        .mobile-nav.active { transform: translateY(0); }
        .mobile-nav ul { flex-direction: column; }
        .mobile-nav li { margin-bottom: 15px; }
        .mobile-nav a { font-size: 1.1rem; display: block; padding: 10px; }
        .breadcrumb {
            padding: 15px 0;
            background: var(--light);
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb a { color: var(--gray); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb span { color: var(--dark); margin: 0 8px; }
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            border-radius: var(--radius);
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        main { display: grid; grid-template-columns: 1fr 300px; gap: 40px; }
        article h2 {
            color: var(--primary);
            font-size: 2.2rem;
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent);
        }
        article h3 {
            font-size: 1.6rem;
            margin: 25px 0 15px;
            color: var(--dark);
        }
        article p {
            margin-bottom: 20px;
            font-size: 1.05rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(to right, #f0f7ff, #e3f2fd);
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .highlight-box h4 { color: var(--primary); margin-bottom: 10px; }
        .feature-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .interlink {
            background: var(--light);
            padding: 15px;
            border-radius: var(--radius);
            margin: 25px 0;
            font-size: 0.95rem;
        }
        .interlink a {
            color: var(--primary);
            font-weight: 600;
        }
        .interlink a:hover { text-decoration: underline; }
        aside { padding-top: 20px; }
        .sidebar-widget {
            background: var(--light);
            padding: 25px;
            border-radius: var(--radius);
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-widget ul li {
            padding: 12px 0;
            border-bottom: 1px dashed #ddd;
        }
        .sidebar-widget ul li:last-child { border-bottom: none; }
        .sidebar-widget a:hover { color: var(--primary); padding-left: 5px; }
        .rating-widget .stars { color: var(--accent); font-size: 1.2rem; margin-bottom: 15px; }
        .comment-form, .rating-form {
            background: white;
            padding: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-top: 40px;
        }
        .form-group { margin-bottom: 20px; }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0,102,179,0.1);
        }
        textarea.form-control { min-height: 150px; resize: vertical; }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            cursor: pointer;
            margin-bottom: 20px;
        }
        .star-rating i { color: #ccc; transition: var(--transition); }
        .star-rating i:hover, .star-rating i.active { color: var(--accent); }
        footer {
            background: var(--dark);
            color: white;
            padding-top: 60px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-col h4 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            color: var(--accent);
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background: var(--secondary);
        }
        .footer-links li { margin-bottom: 12px; }
        .footer-links a { color: #bbb; }
        .footer-links a:hover { color: white; padding-left: 5px; }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: var(--radius);
            margin-bottom: 10px;
            border-left: 3px solid var(--accent);
        }
        friend-link a { color: white; font-weight: 600; }
        friend-link a:hover { color: var(--accent); }
        .copyright {
            text-align: center;
            padding: 25px 0;
            border-top: 1px solid #333;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            main { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: repeat(2, 1fr); }
            .hero h1 { font-size: 2.5rem; }
        }
        @media (max-width: 768px) {
            .header-top { flex-wrap: wrap; }
            .desktop-nav, .search-box { display: none; }
            .mobile-toggle { display: block; }
            .footer-content { grid-template-columns: 1fr; }
            .hero { padding: 70px 0; }
            .hero h1 { font-size: 2rem; }
            article h2 { font-size: 1.8rem; }
        }