/* Modern Tech Style - Blue Theme */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0066FF;
    --secondary-color: #00D4FF;
    --dark-color: #0A1628;
    --light-color: #F8FAFC;
    --text-color: #334155;
    --text-light: #64748B;
    --border-color: #E2E8F0;
    --gradient: linear-gradient(135deg, #0066FF 0%, #00D4FF 100%);
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 20px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 800;
    color: var(--dark-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
}

/* Language Selector */
.language-selector {
    padding: 8px 12px;
    border: 2px solid #E2E8F0;
    border-radius: 8px;
    background: white;
    font-size: 14px;
    font-weight: 500;
    color: #0F172A;
    cursor: pointer;
    transition: all 0.3s;
    outline: none;
}

.language-selector:hover {
    border-color: #0066FF;
    background: #F0F9FF;
}

.language-selector:focus {
    border-color: #0066FF;
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.language-selector option {
    padding: 8px;
}

/* Buttons */
.btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary:hover {
    background: #0052CC;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.3);
}

.btn-secondary {
    color: var(--text-color);
    padding: 12px 28px;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    background: white;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
}

/* Hero Section */
.hero {
    padding: 150px 20px 100px;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--dark-color);
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 50px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
}

/* Card Mockup */
.card-mockup {
    position: relative;
    height: 400px;
}

.virtual-card {
    width: 380px;
    height: 240px;
    background: var(--gradient);
    border-radius: 20px;
    padding: 30px;
    color: white;
    box-shadow: 0 20px 60px rgba(0, 102, 255, 0.3);
    position: relative;
    animation: float 3s ease-in-out infinite;
}

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

.card-chip {
    width: 50px;
    height: 40px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    border-radius: 8px;
    margin-bottom: 40px;
}

.card-number {
    font-size: 24px;
    letter-spacing: 3px;
    margin-bottom: 30px;
    font-weight: 500;
}

.card-info {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    margin-bottom: 10px;
}

.card-logo {
    position: absolute;
    bottom: 30px;
    right: 30px;
    font-size: 24px;
    font-weight: 800;
    font-style: italic;
}

/* Features Section */
.features {
    padding: 100px 20px;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--light-color);
    padding: 40px 30px;
    border-radius: 16px;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 12px 30px rgba(0, 102, 255, 0.15);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Benefits Section */
.benefits {
    padding: 100px 20px;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

.benefit-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.benefit-text h2 {
    font-size: 42px;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 24px;
}

.benefit-text p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.benefit-list {
    list-style: none;
}

.benefit-list li {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 12px;
    padding-left: 0;
}

.image-placeholder {
    background: white;
    border-radius: 16px;
    padding: 60px;
    box-shadow: 0 12px 40px rgba(0, 102, 255, 0.1);
}

.brand-logos {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.brand-logo {
    font-size: 48px;
    font-weight: 800;
    text-align: center;
    padding: 30px;
    background: var(--light-color);
    border-radius: 12px;
    color: var(--primary-color);
}

/* Pricing Section */
.pricing {
    padding: 100px 20px;
    background: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.pricing-card {
    background: var(--light-color);
    border-radius: 16px;
    padding: 40px 30px;
    position: relative;
    border: 2px solid transparent;
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 102, 255, 0.15);
}

.pricing-card.featured {
    background: var(--dark-color);
    color: white;
    transform: scale(1.05);
}

.pricing-card.featured .pricing-header h3,
.pricing-card.featured .price,
.pricing-card.featured .pricing-features li {
    color: white;
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.price {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
}

.price span {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-light);
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 12px 0;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}

.pricing-card.featured .pricing-features li {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.pricing-card .btn-outline,
.pricing-card .btn-primary {
    width: 100%;
    text-align: center;
}

/* CTA Section */
/* CTA Section */
.cta {
    background-color: #f8f9fa; /* 非常浅的灰色背景 */
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
    color: #333;
    padding: 4rem 0;
    text-align: center;
}

.cta h2 {
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: #2d3436;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #636e72;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta .btn-primary {
    background-color: #0984e3; /* 清新蓝色 */
    color: white;
    border: none;
    padding: 0.9rem 2.2rem;
    font-size: 1rem;
    border-radius: 6px; /* 更小的圆角，更专业 */
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 2px 5px rgba(9, 132, 227, 0.3);
}

.cta .btn-primary:hover {
    background-color: #0770c4; /* 深一点的蓝色 */
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(9, 132, 227, 0.4);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 60px 20px 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 16px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Content Pages Styles */
.hero-small {
    padding: 140px 20px 60px;
    margin-top: 60px;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
    text-align: center;
}

.hero-small h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 12px;
    color: #0F172A;
}

.hero-small .subtitle {
    font-size: 18px;
    color: #64748B;
}

.content-section {
    padding: 80px 20px;
    background: #FFFFFF;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
}

.content-wrapper h2 {
    font-size: 32px;
    font-weight: 700;
    margin: 40px 0 20px 0;
    color: #0F172A;
}

.content-wrapper h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 30px 0 15px 0;
    color: #1E293B;
}

.content-wrapper p {
    margin-bottom: 16px;
    color: #475569;
}

.content-wrapper ul {
    margin: 20px 0;
    padding-left: 30px;
}

.content-wrapper ul li {
    margin-bottom: 12px;
    color: #475569;
}

.content-wrapper a {
    color: #0066FF;
    text-decoration: none;
}

.content-wrapper a:hover {
    text-decoration: underline;
}

/* Contact Page Styles */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.contact-info h2,
.contact-form-section h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #0F172A;
}

.contact-methods {
    margin-top: 30px;
}

.contact-method {
    margin-bottom: 40px;
    padding: 30px;
    background: #F8FAFC;
    border-radius: 12px;
    border: 1px solid #E2E8F0;
}

.contact-method h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #0F172A;
}

.contact-method p {
    margin-bottom: 8px;
    color: #475569;
}

.contact-method a {
    color: #0066FF;
    text-decoration: none;
}

.contact-method a:hover {
    text-decoration: underline;
}

.contact-method .note {
    font-size: 14px;
    color: #64748B;
    font-style: italic;
}

.qr-codes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 20px;
}

.qr-code-item {
    text-align: center;
}

.qr-code-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #0F172A;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    background: #FFFFFF;
    border: 2px dashed #CBD5E1;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #64748B;
    font-size: 24px;
}

.qr-placeholder p {
    margin: 4px 0;
}

.qr-placeholder .qr-note {
    font-size: 12px;
    color: #94A3B8;
}

.qr-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.contact-id {
    margin-top: 12px;
    font-size: 14px;
    color: #64748B;
    font-weight: 500;
}

/* Contact Form Styles */
.contact-form {
    background: #F8FAFC;
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #E2E8F0;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #0F172A;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #E2E8F0;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066FF;
}

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

.btn-submit {
    width: 100%;
    padding: 14px 24px;
    background: #0066FF;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-submit:hover {
    background: #0052CC;
}

.form-note {
    text-align: center;
    font-size: 14px;
    color: #64748B;
    margin-top: 12px;
}

.faq-link {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
    background: #F0F9FF;
    border-radius: 12px;
    text-align: center;
}

.faq-link h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #0F172A;
}

.faq-link p {
    color: #475569;
}

.faq-link a {
    color: #0066FF;
    text-decoration: none;
    font-weight: 600;
}

.faq-link a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 968px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .qr-codes {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}

@media (max-width: 768px) {
    .nav-menu, .nav-buttons {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-small h1 {
        font-size: 36px;
    }
    
    .content-wrapper h2 {
        font-size: 28px;
    }
    
    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .benefit-item {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .contact-method {
        padding: 20px;
    }
    
    .qr-placeholder {
        width: 180px;
        height: 180px;
    }
}