* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
        :root {
            --primary: #6a5acd; 
            --secondary: #ff7b54; 
            --accent: #9d4edd; 
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --success: #2ecc71;
            --border-radius: 12px;
            --shadow: 0 5px 15px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        html { scroll-behavior: smooth; }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: var(--dark);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section { padding: 60px 0; }
        h1, h2, h3, h4 { color: var(--dark); font-weight: 800; line-height: 1.3; margin-bottom: 1rem; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); }
        h2 { font-size: clamp(2rem, 4vw, 2.8rem); border-left: 5px solid var(--accent); padding-left: 15px; margin-top: 2rem; }
        h3 { font-size: clamp(1.5rem, 3vw, 2rem); color: var(--primary); margin-top: 1.5rem; }
        h4 { font-size: 1.3rem; color: var(--secondary); }
        p { margin-bottom: 1.2rem; font-size: 1.1rem; }
        .lead { font-size: 1.3rem; color: var(--gray); font-weight: 300; }
        .highlight { background-color: #fff9db; padding: 2px 6px; border-radius: 4px; }
        .updated { font-style: italic; color: var(--gray); font-size: 0.95rem; }
        .site-header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { color: var(--secondary); font-size: 2rem; }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 0;
            position: relative;
        }
        .desktop-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary);
            transition: width 0.3s;
        }
        .desktop-nav a:hover:after { width: 100%; }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
        }
        .mobile-nav {
            position: fixed;
            top: 0;
            left: -100%;
            width: 280px;
            height: 100vh;
            background: white;
            box-shadow: 5px 0 15px rgba(0,0,0,0.1);
            padding: 80px 30px 30px;
            transition: left 0.4s ease;
            z-index: 999;
        }
        .mobile-nav.active { left: 0; }
        .mobile-nav ul { list-style: none; }
        .mobile-nav li { margin-bottom: 20px; }
        .mobile-nav a { font-size: 1.2rem; font-weight: 600; }
        .close-menu {
            position: absolute;
            top: 25px;
            right: 25px;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--gray);
            cursor: pointer;
        }
        .overlay {
            display: none;
            position: fixed;
            top: 0; left: 0;
            width: 100%; height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 998;
        }
        .overlay.active { display: block; }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.95rem;
            color: var(--gray);
        }
        .breadcrumb a { color: var(--gray); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb span { margin: 0 8px; }
        .hero {
            background: linear-gradient(rgba(106, 90, 205, 0.85), rgba(157, 78, 221, 0.85)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
            padding: 100px 20px;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
            margin-bottom: 40px;
        }
        .hero h1 { color: white; margin-bottom: 20px; }
        .hero .lead { color: rgba(255,255,255,0.9); font-size: 1.4rem; max-width: 800px; margin: 0 auto 30px; }
        .search-widget {
            background: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 40px auto;
            max-width: 800px;
        }
        .search-widget h3 { text-align: center; margin-top: 0; }
        .search-form {
            display: flex;
            margin-top: 20px;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid #e0e0e0;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus { border-color: var(--primary); }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 30px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-btn:hover { background: var(--accent); }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-body { background: white; padding: 40px; border-radius: var(--border-radius); box-shadow: var(--shadow); }
        .sidebar { position: sticky; top: 120px; height: fit-content; }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 25px;
        }
        .sidebar-widget h4 { margin-top: 0; border-bottom: 2px solid #f0f0f0; padding-bottom: 10px; }
        .value-list { list-style: none; }
        .value-list li {
            padding: 12px 0;
            border-bottom: 1px dashed #eee;
            display: flex;
            justify-content: space-between;
        }
        .value-list li:last-child { border-bottom: none; }
        .pet-tier { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: 10px; }
        .tier-legend { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 15px; }
        .legend-item { display: flex; align-items: center; font-size: 0.9rem; }
        .img-box {
            float: right;
            width: 350px;
            margin: 15px 0 20px 30px;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        @media (max-width: 768px) {
            .img-box { float: none; width: 100%; margin: 20px 0; }
        }
        .btn {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover { background: var(--accent); transform: translateY(-3px); box-shadow: 0 7px 15px rgba(0,0,0,0.1); }
        .btn-secondary { background: var(--secondary); }
        .btn-secondary:hover { background: #ff6b40; }
        .tooltip {
            position: relative;
            border-bottom: 1px dotted var(--primary);
            cursor: help;
        }
        .tooltip-text {
            visibility: hidden;
            width: 250px;
            background: var(--dark);
            color: white;
            text-align: center;
            padding: 10px;
            border-radius: 6px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.9rem;
        }
        .tooltip:hover .tooltip-text { visibility: visible; opacity: 1; }
        .interaction-form {
            background: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 50px 0;
        }
        .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
        @media (max-width: 768px) { .form-grid { grid-template-columns: 1fr; } }
        .form-group { margin-bottom: 20px; }
        label { display: block; margin-bottom: 8px; font-weight: 600; }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            border: 2px solid #e0e0e0;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus { border-color: var(--primary); outline: none; }
        textarea { min-height: 150px; resize: vertical; }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            margin: 10px 0;
        }
        .star-rating .star { cursor: pointer; transition: var(--transition); }
        .star-rating .star:hover, .star-rating .star.active { color: #ffc107; }
        .site-footer {
            background: var(--dark);
            color: #adb5bd;
            padding: 60px 0 30px;
            margin-top: auto;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        @media (max-width: 992px) { .footer-content { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 576px) { .footer-content { grid-template-columns: 1fr; } }
        .footer-col h4 { color: white; border: none; padding: 0; }
        .footer-links { list-style: none; margin-top: 20px; }
        .footer-links li { margin-bottom: 12px; }
        .footer-links a { color: #adb5bd; }
        .footer-links a:hover { color: white; padding-left: 5px; }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 12px 20px;
            border-radius: 8px;
            margin-bottom: 10px;
            border-left: 3px solid var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 40px;
            margin-top: 40px;
            border-top: 1px solid #495057;
            font-size: 0.9rem;
        }