* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-dark: #1a365d;
            --primary: #2d4f8b;
            --accent: #e63946;
            --light-bg: #f8f9fa;
            --dark-text: #2d3748;
            --light-text: #4a5568;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s ease;
        }
        body {
            color: var(--dark-text);
            background-color: #fff;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        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: var(--primary);
            color: white;
            padding: 12px 24px;
            border-radius: 6px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }
        .site-header {
            background-color: var(--primary-dark);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: white;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            color: var(--accent);
            margin-right: 10px;
            font-size: 2.5rem;
        }
        .my-logo:hover {
            color: #fff;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 12px;
            border-radius: 4px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
            color: var(--light-text);
        }
        .search-box {
            background: var(--light-bg);
            padding: 3rem 0;
            text-align: center;
            margin-bottom: 3rem;
            border-radius: 12px;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 20px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary);
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .content-area {
                grid-template-columns: 1fr;
            }
        }
        .main-content h1 {
            font-size: 2.8rem;
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 15px;
        }
        .main-content h2 {
            font-size: 2.2rem;
            color: var(--primary);
            margin: 2.5rem 0 1.5rem;
            padding-top: 1rem;
        }
        .main-content h3 {
            font-size: 1.7rem;
            color: var(--dark-text);
            margin: 2rem 0 1rem;
        }
        .main-content h4 {
            font-size: 1.3rem;
            color: var(--light-text);
            margin: 1.5rem 0 0.8rem;
        }
        .main-content p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            color: var(--light-text);
        }
        .highlight-box {
            background: linear-gradient(135deg, #f0f4ff, #e6f0ff);
            border-left: 5px solid var(--primary);
            padding: 2rem;
            margin: 2.5rem 0;
            border-radius: 0 12px 12px 0;
            box-shadow: var(--shadow);
        }
        .featured-image {
            width: 100%;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .inline-link {
            font-weight: 700;
            border-bottom: 2px dotted var(--primary);
        }
        .inline-link:hover {
            border-bottom-style: solid;
        }
        .emoji {
            font-size: 1.3em;
            margin-right: 5px;
        }
        .sidebar {
            background-color: var(--light-bg);
            padding: 2rem;
            border-radius: 12px;
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed var(--border-color);
        }
        .sidebar li:last-child {
            border-bottom: none;
        }
        .user-interaction {
            background-color: var(--light-bg);
            padding: 3rem;
            border-radius: 12px;
            margin: 4rem 0;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        .rating-stars {
            color: #ffc107;
            font-size: 1.5rem;
            margin: 10px 0;
            cursor: pointer;
        }
        .rating-stars .star:hover {
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links a {
            color: #cbd5e0;
            display: block;
            padding: 0.4rem 0;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: 8px;
            margin-top: 1rem;
            font-style: italic;
        }
        friend-link a {
            color: #90cdf4;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #a0aec0;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                background: var(--primary-dark);
                width: 100%;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .main-nav ul {
                flex-direction: column;
                padding: 2rem;
                gap: 1rem;
            }
            .main-content h1 {
                font-size: 2.2rem;
            }
            .main-content h2 {
                font-size: 1.8rem;
            }
            .search-form {
                flex-direction: column;
            }
        }