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

:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --card-bg: #1e293b;
    --border-color: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--darker-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(37, 99, 235, 0.2);
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
}

.logo-icon {
    font-size: 32px;
}

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

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

.nav-link:hover::before {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.hero {
    margin-top: 80px;
    padding: 120px 24px 100px;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #2563eb 0%, transparent 70%);
    top: -200px;
    right: -100px;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #7c3aed 0%, transparent 70%);
    bottom: -150px;
    left: -100px;
    animation-delay: -5s;
}

.shape-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #06b6d4 0%, transparent 70%);
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -50px) scale(1.1); }
    66% { transform: translate(-50px, 50px) scale(0.9); }
}

.hero-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.hero-content h1 {
    font-size: 58px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #f8fafc 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.8;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 48px;
    padding: 40px;
    background: rgba(30, 41, 59, 0.5);
    border-radius: 24px;
    border: 1px solid var(--border-color);
}

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

.stat-number {
    font-size: 42px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

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

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    padding: 16px 40px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(37, 99, 235, 0.1);
    transform: translateY(-3px);
}

.section {
    padding: 100px 24px;
}

.section:nth-child(even) {
    background: var(--dark-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-tag {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.feature-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.2);
}

.feature-icon {
    width: 100%;
    height: 200px;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 24px;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.feature-card:hover .feature-icon img {
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.feature-list li {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 24px;
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

.technology-content {
    max-width: 1200px;
    margin: 0 auto;
}

.tech-showcase {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.tech-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 40px;
    padding: 40px;
    background: var(--card-bg);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    transition: all 0.4s ease;
}

.tech-item:hover {
    border-color: var(--primary-color);
    transform: translateX(10px);
}

.tech-number {
    font-size: 72px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.tech-info h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.tech-info p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.scenario-card {
    background: var(--card-bg);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s ease;
}

.scenario-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.2);
}

.scenario-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.scenario-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.scenario-card:hover .scenario-image img {
    transform: scale(1.1);
}

.scenario-overlay {
    position: absolute;
    top: 20px;
    left: 20px;
}

.scenario-tag {
    padding: 8px 20px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
}

.scenario-content {
    padding: 32px;
}

.scenario-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.scenario-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.scenario-benefits {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.scenario-benefits span {
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 50px;
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 600;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 40px;
    border: 1px solid var(--border-color);
    transition: all 0.4s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.2);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    border-width: 2px;
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 30px;
    padding: 6px 20px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
}

.pricing-header {
    text-align: center;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 32px;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price-currency {
    font-size: 24px;
    color: var(--text-secondary);
}

.price-amount {
    font-size: 56px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-period {
    font-size: 18px;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.check {
    color: var(--success-color);
    font-weight: 700;
}

.cross {
    color: var(--text-muted);
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 16px;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.pricing-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(37
, 99, 235, 0.3);
}

.cases-content {
display: flex;
flex-direction: column;
gap: 60px;
max-width: 1200px;
margin: 0 auto;
}

.case-item {
background: var(--card-bg);
border-radius: 24px;
padding: 50px;
border: 1px solid var(--border-color);
transition: all 0.4s ease;
}

.case-item:hover {
border-color: var(--primary-color);
box-shadow: 0 20px 60px rgba(37, 99, 235, 0.2);
}

.case-logo {
width: 100%;
height: 200px;
border-radius: 16px;
overflow: hidden;
margin-bottom: 32px;
}

.case-logo img {
width: 100%;
height: 100%;
object-fit: cover;
}

.case-info h3 {
font-size: 32px;
font-weight: 700;
margin-bottom: 12px;
color: var(--text-primary);
}

.case-industry {
font-size: 16px;
color: var(--accent-color);
margin-bottom: 20px;
font-weight: 600;
}

.case-desc {
font-size: 16px;
color: var(--text-secondary);
line-height: 1.8;
margin-bottom: 32px;
}

.case-results {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 32px;
padding-top: 32px;
border-top: 1px solid var(--border-color);
}

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

.result-value {
font-size: 48px;
font-weight: 900;
background: var(--gradient-primary);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
margin-bottom: 8px;
}

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

.api-content {
display: grid;
grid-template-columns: 1.5fr 1fr;
gap: 60px;
max-width: 1200px;
margin: 0 auto;
}

.api-demo {
background: var(--card-bg);
border-radius: 24px;
overflow: hidden;
border: 1px solid var(--border-color);
}

.api-tabs {
display: flex;
background: rgba(15, 23, 42, 0.5);
border-bottom: 1px solid var(--border-color);
}

.api-tab {
flex: 1;
padding: 16px;
text-align: center;
font-weight: 600;
color: var(--text-secondary);
cursor: pointer;
transition: all 0.3s ease;
}

.api-tab.active {
background: var(--card-bg);
color: var(--primary-color);
border-bottom: 2px solid var(--primary-color);
}

.api-code {
padding: 32px;
overflow-x: auto;
}

.api-code pre {
margin: 0;
}

.api-code code {
font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
font-size: 13px;
line-height: 1.8;
color: var(--text-secondary);
}

.api-features {
display: flex;
flex-direction: column;
gap: 32px;
}

.api-feature {
background: var(--card-bg);
padding: 32px;
border-radius: 20px;
border: 1px solid var(--border-color);
transition: all 0.4s ease;
}

.api-feature:hover {
border-color: var(--primary-color);
transform: translateX(10px);
}

.api-feature h3 {
font-size: 20px;
font-weight: 700;
margin-bottom: 12px;
color: var(--text-primary);
}

.api-feature p {
font-size: 15px;
color: var(--text-secondary);
line-height: 1.8;
}

.security-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 32px;
}

.security-card {
background: var(--card-bg);
padding: 40px;
border-radius: 20px;
border: 1px solid var(--border-color);
text-align: center;
transition: all 0.4s ease;
}

.security-card:hover {
border-color: var(--primary-color);
transform: translateY(-10px);
box-shadow: 0 20px 60px rgba(37, 99, 235, 0.2);
}

.security-icon {
font-size: 56px;
margin-bottom: 24px;
}

.security-card h3 {
font-size: 22px;
font-weight: 700;
margin-bottom: 16px;
color: var(--text-primary);
}

.security-card p {
font-size: 15px;
color: var(--text-secondary);
line-height: 1.8;
}

.contact-content {
display: grid;
grid-template-columns: 1.5fr 1fr;
gap: 60px;
max-width: 1200px;
margin: 0 auto;
}

.contact-form {
background: var(--card-bg);
padding: 50px;
border-radius: 24px;
border: 1px solid var(--border-color);
}

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

.form-group label {
display: block;
font-size: 14px;
font-weight: 600;
color: var(--text-primary);
margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
width: 100%;
padding: 14px 18px;
background: rgba(15, 23, 42, 0.5);
border: 1px solid var(--border-color);
border-radius: 12px;
color: var(--text-primary);
font-size: 15px;
transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
outline: none;
border-color: var(--primary-color);
background: rgba(37, 99, 235, 0.05);
}

.submit-btn {
width: 100%;
padding: 16px;
background: var(--gradient-primary);
color: white;
border: none;
border-radius: 12px;
font-size: 16px;
font-weight: 600;
cursor: pointer;
transition: all 0.3s ease;
}

.submit-btn:hover {
transform: translateY(-3px);
box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.contact-info {
display: flex;
flex-direction: column;
gap: 24px;
}

.contact-item {
background: var(--card-bg);
padding: 32px;
border-radius: 20px;
border: 1px solid var(--border-color);
display: flex;
gap: 20px;
transition: all 0.4s ease;
}

.contact-item:hover {
border-color: var(--primary-color);
transform: translateX(10px);
}

.contact-icon {
font-size: 40px;
flex-shrink: 0;
}

.contact-detail h4 {
font-size: 18px;
font-weight: 700;
margin-bottom: 8px;
color: var(--text-primary);
}

.contact-detail p {
font-size: 16px;
color: var(--primary-color);
margin-bottom: 4px;
font-weight: 600;
}

.contact-detail span {
font-size: 13px;
color: var(--text-secondary);
}

.footer {
background: var(--darker-bg);
padding: 80px 24px 40px;
border-top: 1px solid var(--border-color);
}

.footer-content {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 60px;
margin-bottom: 60px;
}

.footer-section h3 {
font-size: 20px;
font-weight: 700;
margin-bottom: 24px;
color: var(--text-primary);
}

.footer-section p {
font-size: 14px;
color: var(--text-secondary);
line-height: 1.8;
}

.footer-links {
list-style: none;
display: flex;
flex-direction: column;
gap: 12px;
}

.footer-links a {
color: var(--text-secondary);
text-decoration: none;
font-size: 14px;
transition: all 0.3s ease;
display: inline-block;
}

.footer-links a:hover {
color: var(--primary-color);
transform: translateX(5px);
}

.footer-bottom {
padding-top: 40px;
border-top: 1px solid var(--border-color);
}

.footer-info {
text-align: center;
margin-bottom: 24px;
}

.copyright {
font-size: 14px;
color: var(--text-secondary);
margin-bottom: 8px;
}

.icp {
font-size: 13px;
color: var(--text-muted);
margin-bottom: 8px;
}

.certificates {
font-size: 13px;
color: var(--text-muted);
}

.footer-disclaimer {
text-align: center;
padding-top: 24px;
border-top: 1px solid var(--border-color);
}

.footer-disclaimer p {
font-size: 13px;
color: var(--text-muted);
line-height: 1.8;
max-width: 1000px;
margin: 0 auto;
}

@media (max-width: 1024px) {
.nav {
display: none;
}
.menu-toggle {
    display: flex;
}

.hero-content h1 {
    font-size: 42px;
}

.hero-stats {
    grid-template-columns: repeat(2, 1fr);
}

.features-grid {
    grid-template-columns: 1fr;
}

.scenarios-grid {
    grid-template-columns: 1fr;
}

.pricing-cards {
    grid-template-columns: 1fr;
}

.api-content {
    grid-template-columns: 1fr;
}

.security-grid {
    grid-template-columns: repeat(2, 1fr);
}

.contact-content {
    grid-template-columns: 1fr;
}

.footer-content {
    grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 768px) {
.hero-content h1 {
font-size: 32px;
}
.section-title {
    font-size: 36px;
}

.hero-stats {
    grid-template-columns: 1fr;
}

.tech-item {
    grid-template-columns: 1fr;
    text-align: center;
}

.case-results {
    grid-template-columns: 1fr;
}

.security-grid {
    grid-template-columns: 1fr;
}

.footer-content {
    grid-template-columns: 1fr;
}