@charset "utf-8";
/* CSS Document */

/* Base Styles */
        :root {
            --primary: #000000;
            --secondary: #ffffff;
            --accent: #ff4d6d;
            --dark: #121212;
            --light: #f8f9fa;
		    --grey: #666666;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Montserrat', sans-serif;
            background-color: #ffffff;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        
        h1, h2, h3, h4 {
            font-family: 'Playfair Display', serif;
            font-weight: 700;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        section {
            padding: 80px 0;
        }
        
        /* Header - Fixed Positioning Fix */
        header {
            background: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(10px);
            color: white;
            padding: 15px 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 5px 30px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
            height: 70px;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }
        
        .logo {
            font-size: 28px;
            font-weight: bold;
            display: flex;
            align-items: center;
        }
        
        .logo i {
            color: var(--accent);
            margin-right: 10px;
            font-size: 24px;
        }
        
        .logo span {
            color: var(--accent);
            
        }
        
        .nav-toggle {
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
            z-index: 1001;
            transition: all 0.3s ease;
        }
        
        .nav-toggle:hover {
            color: var(--accent);
        }
        
        nav {
            display: none;
        }
        
        nav.active {
            display: flex;
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            height: calc(100vh - 70px);
            background: var(--dark);
            z-index: 1000;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            animation: fadeIn 0.5s ease;
            overflow-y: auto;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        nav ul {
            list-style: none;
            text-align: center;
            margin-bottom: 30px;
        }
        
        nav ul li {
            margin-bottom: 25px;
            opacity: 0;
            transform: translateY(20px);
            animation: slideUp 0.5s ease forwards;
        }
        
        @keyframes slideUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        nav ul li:nth-child(1) { animation-delay: 0.2s; }
        nav ul li:nth-child(2) { animation-delay: 0.3s; }
        
        nav ul li a {
            color: white;
            text-decoration: none;
            font-size: 20px;
            font-weight: 300;
            letter-spacing: 1px;
            transition: all 0.3s ease;
            padding: 10px 20px;
            border-radius: 30px;
        }
        
        nav ul li a:hover, nav ul li a:focus {
            color: var(--accent);
            background: rgba(255,255,255,0.1);
        }
        
        .nav-btn {
            display: inline-block;
            background: var(--accent);
            color: var(--dark);
            padding: 10px 25px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin-left: 15px;
        }
        
        /* Hero Section - Fixed Positioning Fix */
        .hero {
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('main.jpg') no-repeat center center/cover;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 70px;
            position: relative;
            overflow: hidden;
            background-color: #1a1a1a; /* fallback if image missing */
        }
        
        .hero::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 150px;
            background: linear-gradient(to bottom, transparent 0%, #ffffff 100%);
            z-index: 1;
        }
        
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
            position: relative;
            z-index: 2;
            text-align: center;
            color: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
            width: 100%;
        }
        
        .search-form {
            background: rgba(255, 255, 255, 0.95);
            padding: 25px;
            border-radius: 15px;
            width: 350px;
            margin: 0 auto 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        
        .search-form h3 {
            color: var(--primary);
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        
        .form-group {
            margin-bottom: 20px;
            text-align: left;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #555;
            font-weight: 500;
        }
        
        /* 年龄范围特殊样式 - 双滑块 */
        .age-range-wrapper {
            margin-bottom: 8px;
			
        }
        
        .age-label-row {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        
        .age-label-row label {
            margin-bottom: 0;
            
        }
        
        .range-value {
            font-weight: 600;
            background: #f0f0f0;
            padding: 4px 12px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--primary);
        }
        
        .slider-container {
            position: relative;
            height: 40px;
            margin: 10px 0 15px;
			outline:none;
			 
			
        }
        
        .slider-track {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            height: 5px;
            width: 100%;
            background: #ddd;
            border-radius: 5px;
            pointer-events: none;
			
        }
        
        .slider-track-fill {
            position: absolute;
            height: 5px;
            
            
            pointer-events: none;
        }
        
        .range-slider {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            -webkit-appearance: none;
            background: transparent;
            pointer-events: none;
			 border: none !important;
    
        }
        
        .range-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            pointer-events: auto;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--grey);
            cursor: pointer;
            box-shadow: 0 2px 8px rgba(0,0,0,0.2);
            border: 2px solid white;
            margin-top: -6px;
			
        }
        
        .range-slider::-webkit-slider-runnable-track {
            height: 5px;
            background: transparent;
            border: none;
			
        }
        
        .range-slider::-moz-range-thumb {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--accent);
            cursor: pointer;
            border: 2px solid white;
            pointer-events: auto;
			
        }
        
        .range-slider::-moz-range-track {
            background: transparent;
            height: 5px;
        }
        
        .range-slider:focus {
            outline: none;
        }
        
       
        .form-group select, 
        .form-group input {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .form-group select:focus, 
        .form-group input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 77, 109, 0.2);
        }
        
        .search-btn {
            background: var(--accent);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            width: 100%;
            transition: all 0.3s ease;
            margin-top: 10px;
        }
        
        .search-btn:hover {
            background: #ff758f;
            transform: translateY(-3px);
        }
        
        .hero-text {
            flex: 1;
            max-width: 600px;
            margin: 0 auto;
        }
        
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            line-height: 1.2;
            text-shadow: 0 5px 15px rgba(0,0,0,0.2);
            animation: fadeInUp 1s ease;
        }
        
        .hero p {
            font-size: 1.4rem;
            margin-bottom: 30px;
            font-weight: 300;
            animation: fadeInUp 1s ease 0.2s forwards;
            opacity: 0;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Features */
        .features {
            padding: 100px 0;
            position: relative;
            background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
            font-size: 2.8rem;
            color: var(--primary);
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }

        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        .section-subtitle {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px;
            font-size: 1.2rem;
            color: #666;
            font-weight: 300;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
            position: relative;
            z-index: 2;
        }
        
        .feature-card {
            background: white;
            padding: 40px 30px;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transition: all 0.5s ease;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.05);
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.1);
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--accent), #ff8fa3);
        }
        
        .feature-icon {
            font-size: 60px;
            margin-bottom: 25px;
            color: var(--accent);
            transition: all 0.5s ease;
        }
        
        .feature-card:hover .feature-icon {
            transform: scale(1.1);
        }
        
        .feature-card h3 {
            margin-bottom: 20px;
            color: var(--dark);
            font-size: 1.5rem;
        }
        
        .feature-card p {
            color: #666;
            font-weight: 300;
        }
        
        /* Testimonials */
        .testimonials {
            background: linear-gradient(135deg, var(--primary), #2a2a2a);
            color: white;
            padding: 100px 0;
            position: relative;
        }
        
        .testimonials .section-title {
            color: white;
        }
        
        .testimonials .section-title::after {
            background: var(--accent);
        }
        
        .testimonial-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
            position: relative;
            z-index: 2;
        }
        
        .testimonial-card {
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
            padding: 40px;
            border-radius: 15px;
            border: 1px solid rgba(255,255,255,0.1);
            transition: all 0.5s ease;
        }
        
        .testimonial-card:hover {
            transform: translateY(-10px);
            background: rgba(255,255,255,0.15);
        }
        
        .testimonial-text {
            font-style: italic;
            margin-bottom: 30px;
            font-size: 1.1rem;
            line-height: 1.8;
            position: relative;
        }
        
        .testimonial-text::before, .testimonial-text::after {
            color: var(--accent);
            font-size: 30px;
            font-family: serif;
            line-height: 1;
            position: absolute;
        }
        
        .testimonial-text::before {
            content: '"';
            top: -15px;
            left: -20px;
        }
        
        .testimonial-text::after {
            content: '"';
            bottom: -35px;
            right: -20px;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
        }
        
        .author-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--accent);
            margin-right: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--dark);
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        
        .author-info h4 {
            margin-bottom: 5px;
            font-size: 1.2rem;
        }
        
        .author-info p {
            opacity: 0.8;
            font-size: 0.9rem;
            font-weight: 300;
        }
        
        .stars {
            color: var(--accent);
            margin-top: 5px;
            font-size: 14px;
        }
        
        /* Stats */
        .stats {
            padding: 80px 0;
            background: white;
        }
        
        .stats-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
            text-align: center;
        }
        
        .stat-item {
            padding: 30px;
        }
        
        .stat-number {
            font-size: 3.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            font-family: 'Playfair Display', serif;
        }
        
        .stat-text {
            color: #666;
            font-size: 1.1rem;
            font-weight: 300;
        }
        
        /* CTA */
        .cta {
            padding: 120px 0;
            text-align: center;
            background: linear-gradient(135deg, rgba(255,77,109,0.9), rgba(255,143,163,0.9)), url('https://images.unsplash.com/photo-1524504388940-b1c1722653e1?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
            color: var(--dark);
            position: relative;
        }
        
        .cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.3);
        }
        
        .cta .container {
            position: relative;
            z-index: 2;
        }
        
        .cta h2 {
            font-size: 3rem;
            margin-bottom: 20px;
            color: white;
            text-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }
        
        .cta p {
            font-size: 1.3rem;
            margin-bottom: 40px;
            color: white;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .cta .btn {
            background: var(--primary);
            color: white;
            padding: 18px 50px;
            font-size: 1.2rem;
            border-radius: 50px;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
        }
        
        .cta .btn:hover {
            background: var(--dark);
            transform: translateY(-3px);
        }
        
        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 80px 0 30px;
            position: relative;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            margin-bottom: 60px;
        }
        
        .footer-column h3 {
            font-size: 1.5rem;
            margin-bottom: 25px;
            position: relative;
            display: inline-block;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--accent);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 15px;
        }
        
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: all 0.3s ease;
            font-weight: 300;
            display: inline-block;
        }
        
        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(5px);
        }
        
        .footer-links i {
            margin-right: 10px;
            color: var(--accent);
            width: 20px;
            text-align: center;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        
        .social-links a {
            display: inline-block;
            transition: all 0.3s ease;
        }
        
        .social-links a:hover {
            transform: translateY(-5px);
            opacity: 0.9;
        }
        
        .app-download-img {
            width: 140px;
            height: auto;
            display: block;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 14px;
            opacity: 0.7;
            font-weight: 300;
        }
        
        .age-disclaimer {
            text-align: center;
            margin-top: 15px;
            font-size: 12px;
            opacity: 0.5;
        }
        
        /* Responsive Styles */
        @media (min-width: 992px) {
            .hero {
                align-items: center;
                justify-content: space-between;
                padding: 80px 50px 0;
            }
            
            .hero-content {
                display: flex;
                flex-direction: row;
                align-items: center;
                max-width: none;
                text-align: left;
            }
            
            .search-form {
                margin-right: 50px;
                margin-bottom: 0;
            }
            
            .hero-text {
                padding-left: 50px;
            }
        }
        
        @media (min-width: 768px) {
            .nav-toggle {
                display: none;
            }
            
            nav {
                display: flex;
                align-items: center;
            }
            
            nav ul {
                display: flex;
                align-items: center;
                margin-bottom: 0;
            }
            
            nav ul li {
                margin-bottom: 0;
                margin-left: 20px;
                opacity: 1;
                transform: none;
                animation: none;
            }
            
            nav ul li a {
                font-size: 16px;
                padding: 8px 15px;
            }
            
            .features-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .stats-container {
                grid-template-columns: repeat(4, 1fr);
            }
            
            .footer-content {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 991px) {
            .search-form {
                margin: 0 auto 30px;
            }
            
            .hero-content {
                flex-direction: column;
                text-align: center;
            }
        }
        
        @media (max-width: 768px) {
            header {
                height: 60px;
                padding: 10px 0;
            }
            
            .hero {
                padding-top: 60px;
                min-height: calc(100vh - 60px);
            }
            
            nav.active {
                top: 60px;
                height: calc(100vh - 60px);
            }
            
            .logo {
                font-size: 22px;
            }
            
            .logo i {
                font-size: 20px;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero p {
                font-size: 1.3rem;
            }
            
            .search-form {
                width: 100%;
                padding: 20px;
                margin-top: 20px;
            }
            
            .nav-btn {
                display: inline-block !important;
                margin-left: 0;
                margin-top: 20px;
            }
            
            .app-download-img {
                width: 120px;
            }
        }
        
        @media (max-width: 576px) {
            .section-title {
                font-size: 2.2rem;
            }
        }