/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.8;
    color: #333;
    overflow-x: hidden;
    background: 
        radial-gradient(circle at 10% 20%, rgba(0, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(0, 212, 255, 0.02) 0%, transparent 50%),
        linear-gradient(135deg, #fafafa 0%, #f0f8ff 100%);
    background-attachment: fixed;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(135deg, rgba(15, 15, 35, 0.95), rgba(26, 26, 46, 0.9));
    backdrop-filter: blur(15px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 255, 255, 0.2);
    box-shadow: 0 2px 20px rgba(0, 255, 255, 0.1);
}

/* 导航栏科技感边框 */
.navbar::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.8), transparent);
    animation: dataFlow 3s ease-in-out infinite;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo-img {
    height: 40px;
    width: auto;
}

.nav-logo h2 {
    color: #00d4ff;
    font-weight: 700;
    font-size: 1.5rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.nav-menu a:hover {
    color: #00ffff;
    background: rgba(0, 255, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
    text-shadow: 0 0 8px rgba(0, 255, 255, 0.6);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #00ffff, transparent);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-menu a:hover::after {
    width: 100%;
    box-shadow: 0 0 8px rgba(0, 255, 255, 0.8);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

/* 科技背景粒子效果 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.1) 0%, transparent 50%);
    animation: particleFloat 8s ease-in-out infinite;
}

/* 动态网格背景 */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    opacity: 0.5;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out;
}

.highlight {
    color: #fbbf24;
    text-shadow: 0 0 20px rgba(251, 191, 36, 0.5);
    background: linear-gradient(45deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease-out 0.4s both;
    flex-wrap: wrap;
    align-items: center;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn span {
    font-size: 0.9rem;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: white;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #00d4ff, #0099cc, #00ffff, #0099cc);
    border-radius: inherit;
    z-index: -1;
    filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(45deg, #00ffff, #00d4ff);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 
        0 15px 30px rgba(0, 212, 255, 0.4),
        0 0 40px rgba(0, 255, 255, 0.3);
}

.btn-primary:hover::before {
    opacity: 1;
    animation: glowPulse 2s ease-in-out infinite;
}

.btn-secondary {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border: 2px solid #10b981;
    font-weight: 600;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #059669, #047857);
    color: white;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4);
    border-color: #059669;
}

.btn-outline {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-outline:hover {
    background: #2563eb;
    color: white;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
    margin-top: 1rem;
    padding: 18px 32px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    cursor: pointer;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.btn-full::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.btn-full:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4), 0 5px 15px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.btn-full:hover::before {
    left: 100%;
}

.btn-full:active {
    transform: translateY(-1px) scale(1.01);
    transition: all 0.1s ease;
}

.btn-full i {
    margin-right: 0.75rem;
    font-size: 1.2rem;
}

/* Form Validation States */
.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #ef4444;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15);
    background: rgba(254, 242, 242, 0.8);
}

.form-group input.success,
.form-group select.success,
.form-group textarea.success {
    border-color: #10b981;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15);
    background: rgba(240, 253, 244, 0.8);
}

/* Loading State */
.btn-full.loading {
    pointer-events: none;
    opacity: 0.8;
    position: relative;
}

.btn-full.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.btn-full.loading span {
    opacity: 0;
}

/* Success/Error Messages */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    z-index: 3000;
    transform: translateX(400px);
    transition: all 0.4s ease;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.notification.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.notification i {
    margin-right: 8px;
    font-size: 1.1rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .modal-content {
        margin: 5% auto;
        width: 95%;
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 2rem 1.5rem 1rem;
    }
    
    .modal form {
        padding: 1.5rem;
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
    }
    
    .form-group {
        margin-bottom: 1.5rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 14px 16px;
    }
    
    .btn-full {
        padding: 16px 24px;
        font-size: 1rem;
    }
    
    .notification {
        top: 10px;
        right: 10px;
        left: 10px;
        transform: translateY(-100px);
    }
    
    .notification.show {
        transform: translateY(0);
    }
}

.hero-stats {
    display: flex;
    gap: 2rem;
    animation: fadeInUp 1s ease-out 0.6s both;
    background: linear-gradient(145deg, rgba(0, 255, 255, 0.1), rgba(0, 212, 255, 0.05));
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid rgba(0, 255, 255, 0.3);
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* 统计数据光效背景 */
.hero-stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    animation: dataFlow 5s ease-in-out infinite;
    pointer-events: none;
}

.stat {
    text-align: center;
    position: relative;
    padding: 0.5rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.stat:hover {
    background: rgba(0, 255, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.stat-number {
    display: block;
    font-size: 2.2rem;
    font-weight: 700;
    color: #00ffff;
    text-shadow: 
        0 0 10px rgba(0, 255, 255, 0.8),
        0 2px 8px rgba(0,0,0,0.5);
    animation: countUp 2s ease-out 0.8s both;
    position: relative;
}

/* 数字光晕效果 */
.stat-number::after {
    content: attr(data-number);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    color: rgba(0, 255, 255, 0.3);
    filter: blur(3px);
    z-index: -1;
    animation: glowPulse 3s ease-in-out infinite;
}

.stat-label {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1rem 0;
}

.hero-image {
    width: 320px;
    height: 320px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.hero-image i {
    font-size: 8rem;
    color: #fbbf24;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Hero Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes countUp {
    from {
        transform: scale(0.5);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes ideaPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.2) rotate(10deg);
    }
}

@keyframes developmentFlash {
    0%, 50%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    25%, 75% {
        opacity: 0.5;
        transform: scale(1.1);
    }
}

@keyframes infinityTwinkle {
    0%, 100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
    33% {
        opacity: 0.6;
        transform: scale(1.1) rotate(120deg);
    }
    66% {
        opacity: 0.8;
        transform: scale(0.9) rotate(240deg);
    }
}

@keyframes thinkingDots {
    0% { content: '思考创新方案'; }
    25% { content: '思考创新方案.'; }
    50% { content: '思考创新方案..'; }
    75% { content: '思考创新方案...'; }
    100% { content: '思考创新方案'; }
}

@keyframes developmentProgress {
    0% {
        transform: translateX(-5px);
        opacity: 0.7;
    }
    50% {
        transform: translateX(0);
        opacity: 1;
    }
    100% {
        transform: translateX(5px);
        opacity: 0.7;
    }
}

@keyframes infinityShimmer {
    0% {
        background: linear-gradient(90deg, transparent, rgba(78, 205, 196, 0.3), transparent);
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.pulse-animation {
    animation: pulse 2s infinite;
}

.animate-text {
    animation: fadeInUp 1s ease-out;
}

.animate-counter {
    animation: countUp 2s ease-out 0.6s both;
}

.hover-lift:hover {
    transform: translateY(-5px);
    transition: transform 0.3s ease;
}

/* Sections */
.section {
    padding: 80px 0;
}

.bg-light {
    background: #f8fafc;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1f2937;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #7c3aed);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    line-height: 1.6;
    color: #6b7280;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #4b5563;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #2563eb, #7c3aed);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    background: #2563eb;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px #2563eb;
}

.timeline-content h4 {
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: #6b7280;
    font-size: 0.9rem;
}

/* Values Section */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.value-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.value-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.value-icon i {
    font-size: 2rem;
    color: white;
}

.value-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.value-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* Products Section */
.products-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

/* 大屏下2*2布局 */
@media (min-width: 1200px) {
    .products-showcase {
        grid-template-columns: repeat(2, 1fr);
        max-width: 1200px;
        margin: 3rem auto 0;
    }
}

.product-card {
    background: linear-gradient(145deg, rgba(255,255,255,0.95), rgba(240,248,255,0.9));
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(0, 255, 255, 0.1);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

/* 全息投影边框效果 */
.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #00d4ff, #0099cc, #00ffff, #0066ff);
    background-size: 300% 100%;
    animation: gradient-shift 3s ease infinite;
}

/* 扫描线效果 */
.product-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.8), transparent);
    animation: scanLine 3s ease-in-out infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card.featured {
    transform: scale(1.02);
    box-shadow: 
        0 20px 50px rgba(0, 212, 255, 0.15),
        0 0 30px rgba(0, 255, 255, 0.2);
    animation: hologram 4s ease-in-out infinite;
}

.product-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.2),
        0 0 40px rgba(0, 255, 255, 0.3),
        inset 0 0 20px rgba(0, 255, 255, 0.1);
}

.product-card:hover::after {
    opacity: 1;
}

.product-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.product-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-icon.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    animation: icon-glow 2s ease-in-out infinite alternate;
}

.product-icon i {
    font-size: 1.5rem;
    color: white;
    z-index: 2;
}

.product-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
}

.product-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.3rem;
}

.product-tagline {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
}

.product-metrics {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.mrr-badge, .rating-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.mrr-badge {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
}

.rating-badge {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

/* Phone Mockup Styles */
.product-screenshots {
    margin: 1.5rem 0;
    position: relative;
}

.screenshot-carousel {
    position: relative;
    height: 300px;
    overflow: hidden;
    border-radius: 15px;
}

.screenshot-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    display: flex;
    justify-content: center;
    align-items: center;
}

.screenshot-item.active {
    opacity: 1;
}

.phone-mockup {
    width: 180px;
    height: 320px;
    background: transparent;
    border-radius: 8px;
    padding: 0;
    position: relative;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.phone-mockup:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.screen-content {
    width: 100%;
    height: 100%;
    background: #f8f9fa;
    border-radius: 15px;
    overflow: hidden;
    position: relative;
}

.app-interface {
    padding: 15px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* App-specific interfaces */
.language-app .chat-bubble {
    background: white;
    padding: 8px 12px;
    border-radius: 15px;
    margin: 5px 0;
    font-size: 0.7rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.language-app .chat-bubble.ai {
    background: #667eea;
    color: white;
    align-self: flex-start;
}

.language-app .chat-bubble.user {
    background: #e9ecef;
    color: #333;
    align-self: flex-end;
}

.language-app .pronunciation-wave {
    width: 80px;
    height: 20px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 10px;
    margin-top: 10px;
    animation: wave-pulse 1.5s ease-in-out infinite;
}

.language-app .progress-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: conic-gradient(#667eea 85%, #e9ecef 85%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
    color: #667eea;
}

.health-app .vital-card {
    background: white;
    padding: 8px;
    border-radius: 10px;
    margin: 5px 0;
    font-size: 0.7rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.stories-app .story-text {
    background: white;
    padding: 10px;
    border-radius: 10px;
    font-size: 0.6rem;
    margin-bottom: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.stories-app .choice-buttons button {
    background: #667eea;
    color: white;
    border: none;
    padding: 5px 8px;
    border-radius: 8px;
    font-size: 0.6rem;
    margin: 2px;
    cursor: pointer;
}

.interview-app .interviewer-avatar {
    font-size: 2rem;
    margin-bottom: 10px;
}

.interview-app .question-bubble {
    background: white;
    padding: 8px;
    border-radius: 10px;
    font-size: 0.6rem;
    margin-bottom: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* SpeakAI App Specific Styles */
.speakai-app .app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 10px;
}

.speakai-app .app-header h4 {
    font-size: 0.8rem;
    font-weight: bold;
    color: #2563eb;
    margin: 0;
}

.speakai-app .pronunciation-feedback {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    padding: 8px;
    background: #f0f9ff;
    border-radius: 8px;
    margin-top: 8px;
}

.speakai-app .feedback-score,
.speakai-app .fluency-score {
    font-size: 0.6rem;
    font-weight: 600;
    color: #0369a1;
}

.speakai-app .roleplay-scene {
    padding: 10px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.speakai-app .scene-title {
    font-size: 0.7rem;
    font-weight: bold;
    color: #1f2937;
    text-align: center;
    padding: 6px;
    background: #fef3c7;
    border-radius: 8px;
    margin-bottom: 8px;
}

.speakai-app .suggestion-box {
    background: #ecfdf5;
    padding: 6px 8px;
    border-radius: 8px;
    margin-top: 8px;
}

.speakai-app .suggestion {
    font-size: 0.6rem;
    color: #059669;
    font-style: italic;
}

.speakai-app .learning-report {
    padding: 10px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.speakai-app .report-title {
    font-size: 0.8rem;
    font-weight: bold;
    color: #1f2937;
    text-align: center;
    margin-bottom: 8px;
}

.speakai-app .progress-stats {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: #f8fafc;
    padding: 8px;
    border-radius: 8px;
}

.speakai-app .stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.speakai-app .stat-label {
    font-size: 0.6rem;
    color: #6b7280;
}

.speakai-app .stat-value {
    font-size: 0.6rem;
    font-weight: bold;
    color: #059669;
}

.speakai-app .improvement-tips {
    background: #fef3c7;
    padding: 6px 8px;
    border-radius: 8px;
    margin-top: 8px;
}

.speakai-app .tip {
    font-size: 0.6rem;
    color: #d97706;
    font-style: italic;
}

/* AI视频通话界面 */
.video-call-interface {
    padding: 20px;
    text-align: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.ai-avatar {
    margin: 20px 0;
}

.avatar-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin: 0 auto 10px;
    animation: pulse 2s infinite;
}

.speaking-indicator {
    color: #667eea;
    font-size: 12px;
    font-weight: bold;
}

.call-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
}

.control-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-btn.active {
    background: #4CAF50;
    color: white;
}

.control-btn.end-call {
    background: #f44336;
    color: white;
}

.control-btn:not(.active):not(.end-call) {
    background: #e0e0e0;
    color: #666;
}

.real-time-feedback {
    background: rgba(76, 175, 80, 0.1);
    padding: 10px;
    border-radius: 10px;
    border-left: 4px solid #4CAF50;
}

.feedback-text {
    color: #4CAF50;
    font-weight: bold;
    font-size: 14px;
}

/* 场景选择网格 */
.scenario-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    padding: 20px;
    background: #f8f9fa;
}

.scenario-card {
    background: white;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.scenario-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.scenario-card.active {
    border-color: #667eea;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.scenario-icon {
    font-size: 30px;
    margin-bottom: 10px;
}

.scenario-title {
    font-size: 12px;
    font-weight: bold;
}

.speakai-app .app-title {
    font-size: 0.8rem;
    font-weight: bold;
    color: #2563eb;
}

.speakai-app .language-selector {
    font-size: 0.7rem;
    background: #f3f4f6;
    padding: 2px 6px;
    border-radius: 8px;
}

.speakai-app .conversation-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
}

.speakai-app .ai-message,
.speakai-app .user-message {
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

.speakai-app .user-message {
    flex-direction: row-reverse;
}

.speakai-app .ai-avatar,
.speakai-app .user-avatar {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.speakai-app .message-bubble {
    background: #f3f4f6;
    padding: 6px 10px;
    border-radius: 12px;
    font-size: 0.65rem;
    line-height: 1.3;
    max-width: 80%;
}

.speakai-app .message-bubble.user {
    background: #2563eb;
    color: white;
}

.speakai-app .score-panel {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    padding: 8px;
    background: #f8fafc;
    border-radius: 8px;
}

.speakai-app .pronunciation-score,
.speakai-app .fluency-score {
    font-size: 0.6rem;
    font-weight: 600;
    color: #059669;
}

/* Role Play Interface */
.speakai-app .role-play-interface {
    padding: 10px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.speakai-app .scenario-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e5e7eb;
}

.speakai-app .scenario-title {
    font-size: 0.7rem;
    font-weight: bold;
    color: #1f2937;
}

.speakai-app .difficulty-level {
    font-size: 0.6rem;
    background: #fef3c7;
    color: #d97706;
    padding: 2px 6px;
    border-radius: 6px;
}

.speakai-app .character-selection {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.speakai-app .character {
    flex: 1;
    text-align: center;
    padding: 8px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.speakai-app .character.active {
    background: #eff6ff;
    border-color: #2563eb;
}

.speakai-app .character-avatar {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.speakai-app .character-name {
    font-size: 0.6rem;
    font-weight: 500;
    color: #374151;
}

.speakai-app .conversation-prompt {
    background: #f8fafc;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 12px;
    border-left: 3px solid #2563eb;
}

.speakai-app .conversation-prompt p {
    font-size: 0.65rem;
    color: #374151;
    margin: 0;
    font-style: italic;
}

.speakai-app .response-options {
    display: flex;
    gap: 6px;
    margin-top: auto;
}

.speakai-app .response-btn,
.speakai-app .hint-btn {
    flex: 1;
    padding: 6px 8px;
    border: none;
    border-radius: 6px;
    font-size: 0.6rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.speakai-app .response-btn {
    background: #2563eb;
    color: white;
}

.speakai-app .hint-btn {
    background: #f3f4f6;
    color: #374151;
}

/* Feedback Interface */
.speakai-app .feedback-interface {
    padding: 10px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.speakai-app .feedback-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e5e7eb;
}

.speakai-app .session-title {
    font-size: 0.7rem;
    font-weight: bold;
    color: #1f2937;
}

.speakai-app .session-time {
    font-size: 0.6rem;
    color: #6b7280;
}

.speakai-app .progress-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.speakai-app .stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.speakai-app .stat-value {
    font-size: 0.8rem;
    font-weight: bold;
    color: #059669;
    min-width: 30px;
}

.speakai-app .stat-label {
    font-size: 0.6rem;
    color: #374151;
    min-width: 50px;
}

.speakai-app .progress-bar {
    flex: 1;
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
}

.speakai-app .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #059669, #10b981);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.speakai-app .improvement-tips {
    background: #fef7ff;
    padding: 8px;
    border-radius: 8px;
    border-left: 3px solid #a855f7;
}

.speakai-app .improvement-tips h4 {
    font-size: 0.65rem;
    font-weight: 600;
    color: #7c2d12;
    margin: 0 0 6px 0;
}

.speakai-app .improvement-tips ul {
    margin: 0;
    padding-left: 12px;
}

.speakai-app .improvement-tips li {
    font-size: 0.6rem;
    color: #374151;
    margin-bottom: 2px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: background 0.3s ease;
}

.dot.active {
    background: #667eea;
}

.product-description p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.feature-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.feature-pill {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: #495057;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid #dee2e6;
    transition: all 0.3s ease;
}

.feature-pill:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.product-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-app-store {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-app-store:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
    color: white;
    text-decoration: none;
}

.btn-google-play {
    background: linear-gradient(135deg, #34a853 0%, #137333 100%);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-google-play:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(52, 168, 83, 0.3);
    color: white;
    text-decoration: none;
}

.dev-status {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-weight: 500;
    margin-left: 0.5rem;
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.btn-demo {
    background: transparent;
    color: #667eea;
    padding: 0.8rem 1.5rem;
    border: 2px solid #667eea;
    border-radius: 25px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-demo:hover {
    background: #667eea;
    color: white;
    transform: translateY(-3px);
}

.products-summary {
    margin-top: 4rem;
    text-align: center;
}

.innovation-pipeline {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 50%, rgba(255, 154, 158, 0.08) 100%);
    border-radius: 24px;
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.1), 0 8px 16px rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
}

.innovation-pipeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 50%, rgba(255, 154, 158, 0.15) 100%);
    border-radius: 24px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.innovation-pipeline:hover::before {
    opacity: 1;
}

.innovation-pipeline:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px rgba(102, 126, 234, 0.15), 0 12px 24px rgba(0, 0, 0, 0.08);
}

.pipeline-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #ff9a9e 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease-in-out infinite;
    text-align: center;
    position: relative;
}

.pipeline-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #ff9a9e 100%);
    border-radius: 2px;
    animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.pipeline-description {
    font-size: 1.2rem;
    color: #555;
    line-height: 1.8;
    margin-bottom: 3rem;
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    padding: 0 1rem;
}

.pipeline-description::before {
    content: '"';
    font-size: 3rem;
    color: rgba(102, 126, 234, 0.3);
    position: absolute;
    top: -10px;
    left: -10px;
    font-family: serif;
}

.pipeline-description::after {
    content: '"';
    font-size: 3rem;
    color: rgba(102, 126, 234, 0.3);
    position: absolute;
    bottom: -30px;
    right: -10px;
    font-family: serif;
}

.pipeline-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.pipeline-stats .stat-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: center;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.pipeline-stats .stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.6s ease;
}

.pipeline-stats .stat-item:hover::before {
    left: 100%;
}

.pipeline-stats .stat-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 30px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.4);
}

/* 为不同状态添加特殊样式 */
.pipeline-stats .stat-item:nth-child(1) {
    border-left: 4px solid #ffd700;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 255, 255, 0.8) 100%);
}

.pipeline-stats .stat-item:nth-child(1)::after {
    content: '💡';
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    animation: ideaPulse 2s ease-in-out infinite;
}

.pipeline-stats .stat-item:nth-child(2) {
    border-left: 4px solid #ff6b6b;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1) 0%, rgba(255, 255, 255, 0.8) 100%);
}

.pipeline-stats .stat-item:nth-child(2)::after {
    content: '⚡';
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    animation: developmentFlash 1.5s ease-in-out infinite;
}

.pipeline-stats .stat-item:nth-child(3) {
    border-left: 4px solid #4ecdc4;
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.1) 0%, rgba(255, 255, 255, 0.8) 100%);
}

.pipeline-stats .stat-item:nth-child(3)::after {
    content: '🌟';
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    animation: infinityTwinkle 3s ease-in-out infinite;
}

.pipeline-stats .stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 0.5rem;
    animation: pulse 2s ease-in-out infinite;
    position: relative;
}

.pipeline-stats .stat-label {
    font-size: 1rem;
    color: #666;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

/* 为标签添加状态描述 */
.pipeline-stats .stat-item:nth-child(1) .stat-label::after {
    content: '思考创新方案';
    display: block;
    font-size: 0.75rem;
    margin-top: 8px;
    color: #ffd700;
    font-style: italic;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    animation: thinkingDots 3s ease-in-out infinite;
}

.pipeline-stats .stat-item:nth-child(2) .stat-label::after {
    content: '快速迭代开发';
    display: block;
    font-size: 0.75rem;
    margin-top: 8px;
    color: #ff6b6b;
    font-style: italic;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    animation: developmentProgress 2s ease-in-out infinite;
}

.pipeline-stats .stat-item:nth-child(3) .stat-label::after {
    content: '无限创新空间';
    display: block;
    font-size: 0.75rem;
    margin-top: 8px;
    color: #4ecdc4;
    font-style: italic;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    animation: infinityShimmer 2.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@media (max-width: 768px) {
    .innovation-pipeline {
        margin: 0 1rem;
        padding: 2rem 1.5rem;
    }
    
    .pipeline-title {
        font-size: 1.8rem;
    }
    
    .pipeline-description {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .pipeline-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .pipeline-stats .stat-item {
        padding: 1.5rem 1rem;
    }
    
    .pipeline-stats .stat-number {
        font-size: 2rem;
    }
}

.summary-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: #666;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Animations */
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes icon-glow {
    0% { box-shadow: 0 0 20px rgba(102, 126, 234, 0.3); }
    100% { box-shadow: 0 0 30px rgba(102, 126, 234, 0.6); }
}

@keyframes wave-pulse {
    0%, 100% { transform: scaleX(1); }
    50% { transform: scaleX(1.2); }
}

.product-revenue {
    text-align: right;
}

.revenue-amount {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #059669;
}

.revenue-label {
    font-size: 0.8rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.product-card p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.feature-tag {
    background: #eff6ff;
    color: #2563eb;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Team Section */
.team-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.team-member {
    background: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(240,248,255,0.8));
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(0, 255, 255, 0.15);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(8px);
}

/* 团队卡片数据流效果 */
.team-member::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #00d4ff, #0099cc, #00ffff, #0066ff);
    background-size: 300% 100%;
    animation: gradient-shift 3s ease infinite;
}

/* 团队卡片扫描效果 */
.team-member::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    animation: dataFlow 4s ease-in-out infinite;
    pointer-events: none;
}

.team-member:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.2),
        0 0 30px rgba(0, 255, 255, 0.4),
        inset 0 0 15px rgba(0, 255, 255, 0.1);
    animation: hologram 3s ease-in-out infinite;
}

.member-avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    margin: 0 auto 2rem;
    position: relative;
    overflow: hidden;
    border: 4px solid transparent;
    background: linear-gradient(white, white) padding-box, linear-gradient(135deg, #667eea, #764ba2, #f093fb, #f5576c) border-box;
    animation: avatar-glow 3s ease-in-out infinite alternate;
}

.avatar-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* Male Founder Avatar */
.male-founder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    border: 3px solid #fff;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.male-founder .avatar-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.male-founder .avatar-face {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
}

.male-founder .glasses {
    position: absolute;
    top: 35%;
    left: 20%;
    width: 60%;
    height: 20%;
    border: 3px solid #2c3e50;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.male-founder .glasses::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -15%;
    width: 30%;
    height: 3px;
    background: #2c3e50;
    transform: translateY(-50%);
}

.male-founder .glasses::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -15%;
    width: 30%;
    height: 3px;
    background: #2c3e50;
    transform: translateY(-50%);
}

.male-founder .hair {
    position: absolute;
    top: 10%;
    left: 15%;
    width: 70%;
    height: 40%;
    background: #2c3e50;
    border-radius: 50% 50% 0 0;
}

.male-founder .eyes {
    position: absolute;
    top: 40%;
    left: 25%;
    width: 50%;
    height: 15%;
    background: white;
    border-radius: 50%;
}

.male-founder .eyes::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 20%;
    width: 25%;
    height: 60%;
    background: #2c3e50;
    border-radius: 50%;
}

.male-founder .eyes::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 20%;
    width: 25%;
    height: 60%;
    background: #2c3e50;
    border-radius: 50%;
}

.male-founder .mouth {
    position: absolute;
    top: 65%;
    left: 40%;
    width: 20%;
    height: 10%;
    background: #2c3e50;
    border-radius: 0 0 50% 50%;
}

/* Female Founder Avatar */
.female-founder {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    position: relative;
    border: 3px solid #fff;
    box-shadow: 0 8px 25px rgba(240, 147, 251, 0.3);
}

.female-founder .avatar-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.female-founder .avatar-face {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
}

.female-founder .hair-female {
    position: absolute;
    top: 5%;
    left: 10%;
    width: 80%;
    height: 50%;
    background: #8b4513;
    border-radius: 50% 50% 40% 40%;
}

.female-founder .hair-female::before {
    content: '';
    position: absolute;
    top: 60%;
    left: -10%;
    width: 40%;
    height: 60%;
    background: #8b4513;
    border-radius: 50%;
}

.female-founder .hair-female::after {
    content: '';
    position: absolute;
    top: 60%;
    right: -10%;
    width: 40%;
    height: 60%;
    background: #8b4513;
    border-radius: 50%;
}

.female-founder .eyes {
    position: absolute;
    top: 40%;
    left: 25%;
    width: 50%;
    height: 15%;
    background: white;
    border-radius: 50%;
}

.female-founder .eyes::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 20%;
    width: 25%;
    height: 60%;
    background: #2c3e50;
    border-radius: 50%;
}

.female-founder .eyes::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 20%;
    width: 25%;
    height: 60%;
    background: #2c3e50;
    border-radius: 50%;
}

.female-founder .mouth {
    position: absolute;
    top: 65%;
    left: 40%;
    width: 20%;
    height: 8%;
    background: #e74c3c;
    border-radius: 50%;
}

.female-founder .earrings {
    position: absolute;
    top: 50%;
    left: 5%;
    width: 8%;
    height: 8%;
    background: #f1c40f;
    border-radius: 50%;
}

.female-founder .earrings::after {
    content: '';
    position: absolute;
    top: 0;
    right: -70px;
    width: 8px;
    height: 8px;
    background: #f1c40f;
    border-radius: 50%;
}

.team-member:hover .avatar-image {
    transform: scale(1.1);
}

.avatar-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.8), rgba(118, 75, 162, 0.8));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.team-member:hover .avatar-overlay {
    opacity: 1;
}

.member-info h3 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-weight: 700;
}

.member-role {
    color: #667eea;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.member-description {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.member-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.skill-tag {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: #495057;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid #dee2e6;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-color: transparent;
}

.member-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #f0f0f0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
}

.stat-label {
    font-size: 0.8rem;
    color: #666;
    margin-top: 0.2rem;
}

.team-culture {
    margin-top: 4rem;
    text-align: center;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.culture-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.culture-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.culture-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: #2c3e50;
}

.culture-item p {
    color: #666;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* Avatar glow animation */
@keyframes avatar-glow {
    0% { box-shadow: 0 0 20px rgba(102, 126, 234, 0.3); }
    100% { box-shadow: 0 0 30px rgba(102, 126, 234, 0.6); }
}

/* Investment Section */
.investment-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.investment-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.investment-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid #f0f0f0;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.investment-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.investment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.card-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    border-radius: 16px;
}

.card-icon i {
    font-size: 1.8rem;
    color: white;
    z-index: 1;
    position: relative;
}

.investment-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1f2937;
    letter-spacing: -0.025em;
}

.investment-card p {
    color: #6b7280;
    line-height: 1.7;
    font-size: 1rem;
}

.investment-action {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border: 1px solid #f0f0f0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.investment-action::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(102, 126, 234, 0.05), transparent 70%);
    pointer-events: none;
}

.investment-highlight {
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 1;
}

.investment-highlight h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #1f2937;
    position: relative;
    display: inline-block;
}

.investment-highlight h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
}

.investment-highlight ul {
    list-style: none;
    text-align: left;
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.investment-highlight li {
    padding: 0.75rem 0;
    color: #4b5563;
    border-bottom: 1px solid #f3f4f6;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.investment-highlight li:last-child {
    border-bottom: none;
}

.investment-highlight li::before {
    content: '✓';
    color: #10b981;
    font-weight: bold;
    font-size: 1.1rem;
}

/* 大屏幕下恢复左右布局 */
@media (min-width: 1024px) {
    .investment-content {
        grid-template-columns: 2fr 1fr;
        gap: 4rem;
    }
    
    .investment-info {
        grid-template-columns: 1fr;
    }
}

/* Cooperation Section */
.cooperation-content {
    max-width: 1000px;
    margin: 0 auto;
}

.cooperation-section {
    margin-bottom: 3rem;
}

.cooperation-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #1f2937;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cooperation-section h3 i {
    color: #2563eb;
}

.job-positions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

/* 2x2 职位布局 */
.job-positions.job-grid-2x2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 800px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .job-positions.job-grid-2x2 {
        grid-template-columns: 1fr;
    }
}

.position-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.position-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.position-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: #1f2937;
}

.position-card p {
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.position-type {
    background: #eff6ff;
    color: #2563eb;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.ai-requirements {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.ai-tag {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: #667eea;
    padding: 0.3rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
}

.ai-tag:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateY(-1px);
}

/* Partnership Section Styles */
.partnership-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.partnership-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e2e8f0" stroke-width="0.5" opacity="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') repeat;
    opacity: 0.5;
    z-index: 0;
}

.partnership-section .container {
    position: relative;
    z-index: 1;
}

.partnership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.partnership-grid.partnership-grid-2x2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 800px;
    margin: 3rem auto 0;
}

@media (max-width: 768px) {
    .partnership-grid.partnership-grid-2x2 {
        grid-template-columns: 1fr;
    }
}

.partnership-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.partnership-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s ease;
}

.partnership-card:hover::before {
    left: 100%;
}

.partnership-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    border-color: rgba(37, 99, 235, 0.2);
}

.partnership-card .card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.partnership-card .card-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    border-radius: 16px;
}

.partnership-card:hover .card-icon {
    transform: rotate(5deg) scale(1.1);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.partnership-card .card-icon i {
    font-size: 1.8rem;
    color: white;
    z-index: 1;
    position: relative;
}

.partnership-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1e293b;
    letter-spacing: -0.025em;
}

.partnership-card p {
    color: #64748b;
    line-height: 1.7;
    font-size: 0.95rem;
}

.partnership-highlights {
    margin-top: 4rem;
    text-align: center;
}

.partnership-highlights h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #1e293b;
    position: relative;
    display: inline-block;
}

.partnership-highlights h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.highlight-item:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.highlight-item i {
    font-size: 1.2rem;
    color: #667eea;
    flex-shrink: 0;
}

.highlight-item span {
    font-weight: 600;
    color: #374151;
    font-size: 0.9rem;
}

.partnership-action {
    text-align: center;
    margin-top: 3rem;
}

.partnership-action .btn {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.partnership-action .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.partnership-action .btn:hover::before {
    left: 100%;
}

.partnership-action .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

.partnership-action .btn i {
    margin-right: 0.5rem;
}

.cooperation-actions {
    text-align: center;
    margin-top: 3rem;
}

.cooperation-actions .btn {
    margin: 0 1rem;
}

/* Job Actions */
.job-actions {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
}

.job-actions .btn {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
}

/* Careers Section */
.careers-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.career-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.career-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 300% 100%;
    animation: gradient-shift 3s ease infinite;
}

.career-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.career-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.career-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: icon-glow 2s ease-in-out infinite alternate;
}

.career-icon i {
    font-size: 1.8rem;
    color: white;
}

.career-title {
    flex: 1;
}

.career-title h3 {
    font-size: 1.6rem;
    margin-bottom: 0.3rem;
    color: #2c3e50;
    font-weight: 700;
}

.career-type {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    display: inline-block;
    font-size: 0.85rem;
}

.career-description {
    color: #666;
    line-height: 1.6;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.career-requirements {
    margin-bottom: 2rem;
}

.career-requirements h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #2c3e50;
    font-weight: 600;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.requirement-category {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.requirement-category h5 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.requirement-category ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.requirement-category li {
    padding: 0.2rem 0;
    color: #666;
    position: relative;
    padding-left: 1.2rem;
    font-size: 0.85rem;
}

.requirement-category li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.career-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-apply {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    flex: 1;
    justify-content: center;
}

.btn-apply:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
    color: white;
    text-decoration: none;
}

.btn-learn-more {
    background: transparent;
    color: #667eea;
    padding: 0.8rem 2rem;
    border: 2px solid #667eea;
    border-radius: 25px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    flex: 1;
    justify-content: center;
}

.btn-learn-more:hover {
    background: #667eea;
    color: white;
    transform: translateY(-3px);
    text-decoration: none;
}

/* Collaboration Section */
.collaboration-section {
    margin-top: 4rem;
    text-align: center;
}

.collaboration-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.collaboration-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shine 4s infinite;
}

.collaboration-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.collaboration-card h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.collaboration-card p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.btn-collaborate {
    background: white;
    color: #667eea;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-collaborate:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    color: #667eea;
    text-decoration: none;
}

/* Shine animation */
@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e5e7eb;
    text-align: center;
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.contact-icon i {
    font-size: 2rem;
    color: white;
}

.contact-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.contact-title {
    font-size: 1rem;
    color: #667eea;
    font-weight: 500;
    margin-bottom: 1rem;
    font-style: italic;
}

.contact-details p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #4b5563;
}

.contact-details i {
    color: #2563eb;
    width: 20px;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e5e7eb;
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #1f2937;
}

/* Forms */
.form-group {
    margin-bottom: 1.75rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: #1e293b;
    font-size: 0.95rem;
    letter-spacing: 0.025em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15), 0 4px 12px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 1);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: #cbd5e1;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

.form-group select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 48px;
    appearance: none;
}

.form-group input[type="tel"],
.form-group input[type="email"] {
    background-image: none;
}

.form-group input[type="email"] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3e%3cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M16 12a4 4 0 10-8 0 4 4 0 008 0zm0 0v1.5a2.5 2.5 0 005 0V12a9 9 0 10-9 9m4.5-1.206a8.959 8.959 0 01-4.5 1.207'/%3e%3c/svg%3e");
    background-position: right 16px center;
    background-repeat: no-repeat;
    background-size: 20px;
    padding-right: 48px;
}

.form-group input[type="tel"] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3e%3cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M3 5a2 2 0 012-2h3.28a1 1 0 01.948.684l1.498 4.493a1 1 0 01-.502 1.21l-2.257 1.13a11.042 11.042 0 005.516 5.516l1.13-2.257a1 1 0 011.21-.502l4.493 1.498a1 1 0 01.684.949V19a2 2 0 01-2 2h-1C9.716 21 3 14.284 3 6V5z'/%3e%3c/svg%3e");
    background-position: right 16px center;
    background-repeat: no-repeat;
    background-size: 20px;
    padding-right: 48px;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    margin: 3% auto;
    padding: 0;
    border-radius: 24px;
    width: 90%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.4s ease-out;
    position: relative;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #667eea 100%);
    border-radius: 24px 24px 0 0;
}

.modal-header {
    padding: 2.5rem 2.5rem 1.5rem;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 24px 24px 0 0;
}

.modal-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-header h2::before {
    content: '✨';
    font-size: 1.5rem;
}

.close {
    color: #64748b;
    font-size: 1.75rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(248, 250, 252, 0.8);
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.close:hover {
    color: #ef4444;
    background: rgba(254, 242, 242, 0.9);
    border-color: rgba(248, 113, 113, 0.3);
    transform: scale(1.1);
}

.modal form {
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 0 0 24px 24px;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #fbbf24;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #fbbf24;
}

.footer-section p {
    color: #d1d5db;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 60px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 1.5rem 0;
        z-index: 1000;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    /* 导航栏移动端优化 */
    .navbar {
        padding: 1rem 0;
    }
    
    .nav-logo-img {
        height: 35px;
    }
    
    /* Hero区域移动端优化 */
    .hero {
        padding-top: 80px; /* 避免被导航栏遮挡 */
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        text-align: center;
        gap: 1.5rem;
        padding: 1rem;
    }
    
    .hero-visual {
        order: -1; /* 将图标移到顶部 */
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.2;
        margin-bottom: 1rem;
        white-space: normal;
        word-wrap: break-word;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        line-height: 1.5;
        margin-bottom: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .btn {
        padding: 1rem 2rem;
        font-size: 1rem;
        min-height: 48px; /* 触摸友好的最小高度 */
        width: 100%;
        max-width: 280px;
    }
    
    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1.5rem;
    }
    
    /* 英雄区域图标768px以下优化 */
    .hero-image {
        width: 200px;
        height: 200px;
    }
    
    .hero-image i {
        font-size: 4.5rem;
    }
    
    /* 产品展示移动端优化 */
    .products-showcase {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-card {
        padding: 1.5rem;
    }
    
    .product-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .product-icon {
        margin: 0 auto;
    }
    
    .product-name {
        font-size: 1.3rem;
    }
    
    .product-metrics {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .product-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    /* 团队部分移动端优化 */
    .team-showcase {
        grid-template-columns: 1fr;
    }
    
    /* 关于我们移动端优化 */
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* 投资信息移动端优化 */
    .investment-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* 联系方式移动端优化 */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* 合作部分移动端优化 */
    .cooperation-actions .btn {
        display: block;
        margin: 0.5rem 0;
        width: 100%;
    }
    
    /* 合作板块移动端优化 */
    .partnership-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .partnership-card {
        padding: 2rem 1.5rem;
        margin: 0 1rem;
    }
    
    .partnership-card .card-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }
    
    .partnership-card .card-icon i {
        font-size: 1.5rem;
    }
    
    .partnership-card h3 {
        font-size: 1.2rem;
    }
    
    .partnership-card p {
        font-size: 0.9rem;
    }
    
    .partnership-highlights {
        margin-top: 3rem;
    }
    
    .partnership-highlights h3 {
        font-size: 1.3rem;
    }
    
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .highlight-item {
        padding: 1rem;
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .highlight-item span {
        font-size: 0.8rem;
    }
    
    .partnership-action {
        margin-top: 2rem;
    }
    
    .partnership-action .btn {
        padding: 0.875rem 2rem;
        font-size: 1rem;
        width: 100%;
        max-width: 300px;
    }
    
    /* 模态框移动端优化 */
    .modal-content {
        width: 95%;
        margin: 10% auto;
        max-height: 80vh;
        overflow-y: auto;
    }
    
    /* 通用移动端优化 */
    .section {
        padding: 3rem 0;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .section-title {
        font-size: 2rem;
        line-height: 1.2;
        margin-bottom: 1rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    /* 价值观卡片移动端优化 */
    .values-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .value-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    /* 超小屏幕优化 */
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
        margin-bottom: 0.8rem;
        white-space: normal;
        word-wrap: break-word;
    }
    
    /* 英雄区域图标超小屏优化 */
    .hero {
        padding-top: 70px; /* 超小屏幕下稍微减少顶部间距 */
    }
    
    .hero-image {
        width: 180px;
        height: 180px;
    }
    
    .hero-image i {
        font-size: 4rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.4;
        margin-bottom: 1.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .stat-item {
        padding: 1rem;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 12px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    /* 导航栏超小屏优化 */
    .nav-logo-img {
        height: 30px;
    }
    
    .navbar {
        padding: 0.8rem 0;
    }
    
    /* 产品卡片超小屏优化 */
    .product-card {
        padding: 1.2rem;
        margin-bottom: 1.5rem;
    }
    
    .product-name {
        font-size: 1.2rem;
    }
    
    .product-tagline {
        font-size: 0.85rem;
    }
    
    .product-metrics {
        gap: 0.5rem;
    }
    
    .mrr-badge, .rating-badge {
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
    }
    
    /* 按钮超小屏优化 */
    .btn {
        padding: 0.9rem 1.5rem;
        font-size: 0.9rem;
        min-height: 44px;
    }
    
    .btn-app-store, .btn-demo {
        padding: 0.7rem 1.2rem;
        font-size: 0.85rem;
    }
    
    /* 网格布局超小屏优化 */
    .products-grid,
    .team-grid,
    .values-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .job-positions,
    .partnership-options {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* 卡片内容超小屏优化 */
    .value-card,
    .team-member,
    .position-card,
    .partnership-card {
        padding: 1.2rem;
    }
    
    .value-icon,
    .partnership-icon {
        width: 60px;
        height: 60px;
    }
    
    .value-icon i,
    .partnership-icon i {
        font-size: 1.5rem;
    }
    
    /* 模态框超小屏优化 */
    .modal-content {
        margin: 5% auto;
        width: 98%;
        max-height: 90vh;
    }
    
    .modal-header,
    .modal form {
        padding: 1.2rem;
    }
    
    /* 文字大小超小屏优化 */
    .section-title {
        font-size: 1.6rem;
        margin-bottom: 0.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    /* 容器超小屏优化 */
    .container {
        padding: 0 0.8rem;
    }
    
    .section {
        padding: 2.5rem 0;
    }
    
    /* 特殊元素超小屏优化 */
    .phone-mockup {
        width: 150px;
        height: 270px;
    }
    
    .screenshot-carousel {
        height: 250px;
    }
    
    /* 表单元素超小屏优化 */
    input, textarea, select {
        font-size: 16px; /* 防止iOS缩放 */
        padding: 0.8rem;
    }
    
    /* 触摸优化 */
    .nav-menu a,
    .btn,
    .product-card,
    .value-card {
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* 移动端性能优化 */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 移动端触摸优化 */
.btn, .product-card, .value-card, .team-member, .nav-menu a {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 移动端视口优化 */
@media (max-width: 768px) {
    /* 防止横向滚动 */
    body {
        overflow-x: hidden;
    }
    
    /* 优化文本可读性 */
    p, li {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    /* 优化链接点击区域 */
    a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
    
    /* 优化图片加载 */
    img {
        max-width: 100%;
        height: auto;
        loading: lazy;
    }
}

/* 投资者关注的关键信息突出显示 */
@media (max-width: 768px) {
    .mrr-badge {
        font-weight: 700;
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }
    
    .rating-badge {
        font-weight: 700;
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }
    
    .hero-stats .stat-number {
        font-size: 2rem;
        font-weight: 800;
    }
    
    .hero-stats .stat-label {
        font-size: 0.9rem;
        font-weight: 600;
    }
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 新增界面样式 - 基于真实截图 */
/* 主界面样式 */
.main-interface {
    padding: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 300px;
}

.welcome-section {
    text-align: center;
    margin-bottom: 25px;
}

.welcome-section h3 {
    color: #333;
    font-size: 18px;
    margin-bottom: 8px;
}

.welcome-section p {
    color: #666;
    font-size: 14px;
}

.quick-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
}

.action-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-btn.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.action-btn.secondary {
    background: white;
    color: #667eea;
    border: 2px solid #667eea;
}

.progress-overview {
    background: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.progress-text {
    display: block;
    color: #333;
    font-size: 14px;
    margin-bottom: 10px;
}

.progress-bar {
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

/* 对话练习界面 */
.chat-interface {
    padding: 15px;
    background: #f8f9fa;
    min-height: 300px;
    position: relative;
}

.chat-interface .chat-bubble {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.chat-interface .chat-bubble.ai {
    justify-content: flex-start;
}

.chat-interface .chat-bubble.user {
    justify-content: flex-end;
    flex-direction: row-reverse;
}

.chat-interface .avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #667eea;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: white;
}

.chat-interface .message {
    background: white;
    padding: 10px 15px;
    border-radius: 15px;
    max-width: 70%;
    font-size: 14px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.chat-interface .user .message {
    background: #667eea;
    color: white;
}

.pronunciation-score {
    font-size: 12px;
    color: #4CAF50;
    margin-top: 5px;
    font-weight: bold;
}

.input-area {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: white;
    padding: 10px;
    border-radius: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.mic-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: #f44336;
    color: white;
    font-size: 18px;
    cursor: pointer;
    animation: pulse 1.5s infinite;
}

.mic-btn.recording {
    background: #4CAF50;
}

.recording-text {
    color: #f44336;
    font-size: 14px;
    font-weight: bold;
}

/* 课程选择界面 */
.course-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    padding: 20px;
    background: #f8f9fa;
}

.course-card {
    background: white;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.course-card.featured {
    border-color: #667eea;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.course-icon {
    font-size: 30px;
    margin-bottom: 10px;
}

.course-title {
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 8px;
}

.course-progress {
    font-size: 12px;
    opacity: 0.8;
}

/* 截图图片样式 */
.screenshot-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.screenshot-image:hover {
    transform: scale(1.02);
}

/* 图片放大模态框 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.image-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    margin: auto;
}

.modal-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: white;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    background: none;
    border: none;
    padding: 5px 10px;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.modal-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    font-size: 24px;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.modal-nav:hover {
    background: rgba(255, 255, 255, 0.3);
}

.modal-prev {
    left: -60px;
}

.modal-next {
    right: -60px;
}

@media (max-width: 768px) {
    .modal-nav {
        font-size: 20px;
        padding: 8px 12px;
    }
    
    .modal-prev {
        left: -50px;
    }
    
    .modal-next {
        right: -50px;
    }
    
    .modal-close {
        top: -35px;
        font-size: 24px;
    }
}

/* Writing App Styles */
.writing-app {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 12px;
    height: 100%;
}

.writing-interface {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 15px;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.doc-title {
    font-size: 16px;
    font-weight: 600;
}

.ai-status {
    font-size: 12px;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 8px;
    border-radius: 12px;
}

.writing-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.content-block {
    background: rgba(255, 255, 255, 0.1);
    padding: 12px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.4;
}

.ai-suggestion {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 12px;
}

.suggestion-icon {
    font-size: 14px;
}

.writing-tools {
    display: flex;
    gap: 8px;
    margin-top: auto;
}

.tool-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 11px;
    cursor: pointer;
    transition: background 0.2s;
}

.tool-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Animation Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 新增科技感动画 */
@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.8;
    }
    33% {
        transform: translateY(-20px) rotate(120deg);
        opacity: 1;
    }
    66% {
        transform: translateY(10px) rotate(240deg);
        opacity: 0.6;
    }
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

@keyframes glowPulse {
    0%, 100% {
        filter: blur(8px);
        opacity: 0.8;
    }
    50% {
        filter: blur(12px);
        opacity: 1;
    }
}

@keyframes dataFlow {
    0% {
        transform: translateX(-100%);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(100%);
        opacity: 0;
    }
}

@keyframes hologram {
    0%, 100% {
        box-shadow: 
            0 0 20px rgba(0, 255, 255, 0.3),
            inset 0 0 20px rgba(0, 255, 255, 0.1);
    }
    50% {
        box-shadow: 
            0 0 40px rgba(0, 255, 255, 0.6),
            inset 0 0 30px rgba(0, 255, 255, 0.2);
    }
}

@keyframes scanLine {
    0% {
        top: 0;
        opacity: 1;
    }
    100% {
        top: 100%;
        opacity: 0;
    }
}

@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes avatar-glow {
    0%, 100% {
        filter: drop-shadow(0 0 10px rgba(0, 255, 255, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(0, 255, 255, 0.6));
    }
}

/* Fade-in animation classes */
.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.fade-in-up:nth-child(1) {
    animation-delay: 0.1s;
}

.fade-in-up:nth-child(2) {
    animation-delay: 0.2s;
}

.fade-in-up:nth-child(3) {
    animation-delay: 0.3s;
}

.fade-in-up:nth-child(4) {
    animation-delay: 0.4s;
}

/* Updated 2025年 8月11日 星期一 10时50分07秒 CST */