:root {
    --primary-color: #3B82F6;
    --secondary-color: #8B5CF6;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --bg-white: #FFFFFF;
    --bg-gray: #F9FAFB;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    background: white;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    background: var(--bg-gray);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

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

.btn-purple {
    background: var(--secondary-color);
    color: white;
}

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo-image {
    height: 2.5rem;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.arrow {
    font-size: 0.75rem;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    margin-top: 0.5rem;
    display: none;
    opacity: 0;
    transition: opacity 0.2s;
}

.dropdown-menu.active {
    opacity: 1;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.dropdown-item:hover {
    background: var(--bg-gray);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn .bar {
    width: 1.5rem;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 4rem;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
    transform: translateY(-100%);
    transition: transform 0.3s;
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu-item {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-sm);
}

.mobile-menu-item:hover {
    background: var(--bg-gray);
}

.mobile-menu-actions {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hero {
    position: relative;
    padding: 5rem 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 50%, #FAF5FF 100%);
    overflow: hidden;
}

.hero-content {
    max-width: 56rem;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: bold;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat-dot {
    width: 0.5rem;
    height: 0.5rem;
    background: #10B981;
    border-radius: 50%;
}

.section-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.section-subtitle {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1rem;
    color: var(--text-secondary);
}

.products-section,
.features-section,
.scenes-section {
    padding: 5rem 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.product-card {
    padding: 1.25rem;
    background: white;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-name {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.product-title {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.product-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

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

.feature-card {
    padding: 2rem;
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.feature-title {
    margin-top: 0;
}
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.feature-description {
    color: var(--text-secondary);
}

.scenes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.scene-card {
    padding: 2rem;
    background: white;
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    transition: all 0.3s;
}

.scene-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.scene-title {
    margin-top: 0;
}
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.scene-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.scene-benefits {
    list-style: none;
    margin-bottom: 1.5rem;
}

.scene-benefits li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.scene-benefits li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.stats-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #FAF5FF 100%);
}

.stats-header {
    text-align: center;
    margin-bottom: 3rem;
}

.stats-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stats-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

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

.stat-box {
    text-align: center;
    padding: 2.5rem 2rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: 3.5rem;
    font-weight: bold;
    color: var(--primary-color);
    line-height: 1;
}

.stat-suffix {
    display: inline;
    font-size: 2rem;
    color: var(--primary-color);
}

.stat-label {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.stat-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.cta-content {
    text-align: center;
    color: white;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.cta-actions .btn-primary {
    background: white;
    color: var(--primary-color);
}

.cta-actions .btn-outline {
    border-color: white;
    color: white;
    background: transparent;
}

.cta-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.cta-note {
    font-size: 0.875rem;
    opacity: 0.8;
}

.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.footer-slogan {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.footer-contact {
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact p {
    margin: 0.5rem 0;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin: 0.5rem 0;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

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

.product-hero {
    padding: 5rem 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #FAF5FF 100%);
}

.product-hero-content {
    max-width: 56rem;
    margin: 0 auto;
    text-align: center;
}

.product-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
}

.product-hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

.product-hero-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.product-hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.product-features {
    padding: 5rem 0;
}

.product-workflow {
    padding: 5rem 0;
    background: var(--bg-gray);
}

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

.workflow-step {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--radius-lg);
}

.step-number {
    display: inline-block;
    width: 3rem;
    height: 3rem;
    line-height: 3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.step-title {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.step-description {
    color: var(--text-secondary);
}

.platforms-section {
    padding: 5rem 0;
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.platform-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
}

.platform-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.platform-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.platform-name {
    font-weight: 600;
}

.product-cta {
    padding: 5rem 0;
}

.cta-box {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-xl);
    color: white;
}

.cta-box h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-box p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-box .btn {
    background: white;
    color: var(--primary-color);
}

.pricing-hero {
    padding: 5rem 0 3rem;
    background: linear-gradient(135deg, #EFF6FF 0%, #FAF5FF 100%);
}

.pricing-section {
    padding: 3rem 0 5rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.pricing-card {
    position: relative;
    padding: 2.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.recommended {
    border-color: var(--primary-color);
}

.recommended-badge {
    position: absolute;
    top: -0.75rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.375rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-name {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.pricing-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.pricing-price {
    margin-bottom: 2rem;
}

.price-amount {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
}

.price-unit {
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.check-icon {
    color: #10B981;
    font-weight: bold;
}

.pricing-note {
    text-align: center;
    color: var(--text-secondary);
}

.pricing-note p {
    margin: 0.5rem 0;
}

.pricing-note a {
    color: var(--primary-color);
    text-decoration: none;
}

.faq-section {
    padding: 5rem 0;
    background: var(--bg-gray);
}

.faq-list {
    max-width: 48rem;
    margin: 0 auto;
}

.faq-item {
    padding: 2rem;
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.faq-question {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.faq-answer {
    color: var(--text-secondary);
}

.about-hero {
    padding: 5rem 0 3rem;
    background: linear-gradient(135deg, #EFF6FF 0%, #FAF5FF 100%);
}

.company-info-section {
    padding: 3rem 0;
}

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

.company-stat {
    text-align: center;
    padding: 2rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.company-stat .stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.company-stat .stat-label {
    color: var(--text-secondary);
}

.values-section {
    padding: 5rem 0;
}

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

.value-card {
    padding: 2rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
}

.value-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.value-title {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.value-description {
    color: var(--text-secondary);
}

.milestones-section {
    padding: 5rem 0;
    background: var(--bg-gray);
}

.timeline {
    max-width: 48rem;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 2rem;
    background: white;
    border-radius: var(--radius-lg);
}

.timeline-year {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    min-width: 6rem;
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-description {
    color: var(--text-secondary);
}

.join-section {
    padding: 5rem 0;
}

.contact-hero {
    padding: 5rem 0 3rem;
    background: linear-gradient(135deg, #EFF6FF 0%, #FAF5FF 100%);
}

.contact-section {
    padding: 3rem 0 5rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.contact-details h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-details p {
    color: var(--text-secondary);
}

.contact-form-wrapper h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
}

.toast {
    position: fixed;
    top: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    transform: translateX(400px);
    transition: transform 0.3s;
}

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

.toast-success {
    border-left: 4px solid #10B981;
}

.toast-error {
    border-left: 4px solid #EF4444;
}