:root {
            --primary-color: #e74c3c;
            --secondary-color: #2c3e50;
            --accent-color: #3498db;
        }
        
        body {
            font-family: 'Microsoft YaHei', sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
            color: #333;
            min-height: 100vh;
        }
        
        .hero-header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 3rem 0;
            margin-bottom: 2rem;
            border-radius: 0 0 30px 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            position: relative;
            overflow: hidden;
        }
        
        .hero-header::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('https://game.gtimg.cn/images/yxzj/img201606/skin/hero-info/194/194-bigskin-3.jpg') center/cover;
            opacity: 0.15;
            z-index: 0;
        }
        
        .hero-content {
            position: relative;
            z-index: 1;
        }
        
        .hero-title {
            font-weight: 800;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        
        .hero-subtitle {
            opacity: 0.9;
            font-weight: 300;
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
        }
        
        .query-card {
            border: none;
            border-radius: 20px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            margin-bottom: 2rem;
            background: white;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .query-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        
        .query-card .card-header {
            background: linear-gradient(135deg, var(--primary-color), #d63031);
            color: white;
            border-radius: 20px 20px 0 0 !important;
            font-weight: bold;
            font-size: 1.2rem;
            padding: 1.2rem;
            border: none;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), #d63031);
            border: none;
            padding: 0.8rem 1.5rem;
            font-weight: 600;
            border-radius: 12px;
            letter-spacing: 1px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
        }
        
        .btn-primary:hover {
            background: linear-gradient(135deg, #c0392b, #b71540);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(231, 76, 60, 0.4);
        }
        
        .form-control, .form-select {
            padding: 0.8rem 1.2rem;
            border-radius: 12px;
            border: 1px solid #e0e0e0;
            transition: all 0.3s ease;
        }
        
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(231, 76, 60, 0.25);
            transform: translateY(-1px);
        }
        
        #result {
            display: none;
            margin-top: 1.5rem;
            padding: 1.8rem;
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .hero-info {
            display: flex;
            align-items: center;
            margin-bottom: 1.8rem;
        }
        
        .hero-info img {
            width: 90px;
            height: 90px;
            border-radius: 50%;
            margin-right: 1.8rem;
            border: 4px solid var(--primary-color);
            object-fit: cover;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .hero-name {
            font-weight: 800;
            color: var(--secondary-color);
            margin-bottom: 0.3rem;
            font-size: 1.5rem;
        }
        
        .hero-details {
            color: #6c757d;
            font-size: 0.95rem;
        }
        
        .power-item {
            margin-bottom: 1.2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #eee;
            font-size: 1.05rem;
        }
        
        .power-value {
            font-weight: bold;
            color: var(--primary-color);
            font-size: 1.1rem;
        }
        
        .ad-container {
            margin: 2.5rem 0;
            padding: 1.5rem;
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
            text-align: center;
            transition: all 0.3s ease;
        }
        
        .ad-container:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .contact-card {
            margin-top: 2.5rem;
            border: none;
            border-radius: 20px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            background: white;
            transition: all 0.3s ease;
        }
        
        .contact-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        
        .contact-card .card-header {
            background: linear-gradient(135deg, var(--secondary-color), #34495e);
            color: white;
            border-radius: 20px 20px 0 0 !important;
            font-weight: bold;
            font-size: 1.2rem;
            padding: 1.2rem;
            border: none;
        }
        
        .contact-item {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        
        .contact-icon {
            color: var(--primary-color);
            margin-right: 0.8rem;
            font-size: 1.2rem;
        }
        
        .footer {
            margin-top: 4rem;
            padding: 2rem 0;
            background: linear-gradient(135deg, var(--secondary-color), #34495e);
            color: white;
            text-align: center;
            border-radius: 30px 30px 0 0;
        }
        
        .loading-spinner {
            display: none;
            text-align: center;
            margin: 1.5rem 0;
        }
        
        .spinner-border {
            width: 2.5rem;
            height: 2.5rem;
            color: var(--primary-color);
        }
        
        .navbar {
            background: linear-gradient(135deg, var(--secondary-color), #34495e);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            padding: 0.8rem 1rem;
        }
        
        .navbar-brand {
            font-weight: 700;
            font-size: 1.3rem;
        }
        
        .nav-link {
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 10px;
            transition: all 0.3s ease;
        }
        
        .nav-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        
        .nav-link.active {
            background-color: rgba(255, 255, 255, 0.2);
        }
        
        .hero-count {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.2);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        
        .feature-card {
            padding: 2rem;
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            height: 100%;
            text-align: center;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .feature-title {
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--secondary-color);
        }
        
        .feature-desc {
            color: #6c757d;
        }
        
        .section-title {
            position: relative;
            display: inline-block;
            margin-bottom: 2rem;
            font-weight: 700;
            color: var(--secondary-color);
        }
        
        .section-title::after {
            content: "";
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
            border-radius: 3px;
        }
        
        .popular-heroes {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
        }
        
        .popular-hero {
            display: flex;
            align-items: center;
            padding: 0.5rem 1rem;
            background: white;
            border-radius: 50px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .popular-hero:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
            background-color: var(--primary-color);
            color: white;
        }
        
        .popular-hero img {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            margin-right: 0.5rem;
        }
        
        .qr-code {
            max-width: 200px;
            margin: 0 auto;
            display: block;
        }
        
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
            }
            
            .hero-subtitle {
                font-size: 1rem;
            }
            
            .query-card {
                margin-bottom: 1.5rem;
            }
        }