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

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-2: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.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;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

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

.btn-download {
    background: var(--gradient-1);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.btn-download:hover {
    transform: translateY(-2px);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域 */
.hero {
    margin-top: 70px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(-50%, -50%) rotate(0deg); }
    50% { transform: translate(-50%, -50%) rotate(180deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

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

.btn-primary {
    background: var(--gradient-1);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-secondary);
    padding: 14px 30px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 手机模型 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1f2937, #374151);
    border-radius: 40px;
    padding: 20px;
    box-shadow: var(--shadow-xl);
    position: relative;
    animation: phoneFloat 3s ease-in-out infinite;
}

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

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border-radius: 30px;
    padding: 30px 20px;
    overflow: hidden;
}

.wallet-interface {
    color: white;
}

.balance-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
}

.balance-card h3 {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 10px;
}

.balance {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 5px;
}

.balance-change {
    color: #10b981;
    font-size: 14px;
}

.crypto-list {
    space-y: 15px;
}

.crypto-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 15px;
    border-radius: 15px;
    margin-bottom: 10px;
}

.crypto-icon {
    font-size: 20px;
    font-weight: bold;
}

.crypto-name {
    flex: 1;
    font-weight: 600;
}

.crypto-value {
    font-weight: 700;
}

/* 功能区域 */
.features {
    padding: 120px 0;
    background: var(--bg-primary);
}

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

.section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 使用场景 */
.scenarios {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.scenarios-container {
    display: grid;
    gap: 40px;
}

.scenario-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: grid;
    grid-template-columns: 200px 1fr;
}

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

.scenario-image {
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.scenario-content {
    padding: 40px;
}

.scenario-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.scenario-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.scenario-content ul {
    list-style: none;
    space-y: 8px;
}

.scenario-content li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.scenario-content li::before {
    content: '✓';
    color: #10b981;
    font-weight: bold;
    font-size: 1.2rem;
}

/* 安全性区域 */
.security {
    padding: 120px 0;
    background: var(--bg-dark);
    color: white;
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.security-text h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.security-text > p {
    font-size: 1.25rem;
    color: #94a3b8;
    margin-bottom: 40px;
}

.security-features {
    space-y: 30px;
}

.security-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.security-item i {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-top: 5px;
}

.security-item h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.security-item p {
    color: #94a3b8;
}

.security-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-shield {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.security-shield i {
    font-size: 5rem;
    color: var(--accent-color);
    z-index: 2;
    position: relative;
}

.security-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.ring {
    position: absolute;
    border: 2px solid rgba(245, 158, 11, 0.3);
    border-radius: 50%;
    animation: pulse 3s ease-in-out infinite;
}

.ring-1 {
    width: 150px;
    height: 150px;
    animation-delay: 0s;
}

.ring-2 {
    width: 200px;
    height: 200px;
    animation-delay: 1s;
}

.ring-3 {
    width: 250px;
    height: 250px;
    animation-delay: 2s;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.3;
    }
}

/* 下载区域 */
.download {
    padding: 120px 0;
    background: var(--gradient-1);
    color: white;
    text-align: center;
}

.download-content h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.download-content p {
    font-size: 1.25rem;
    margin-bottom: 60px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.download-btn {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    padding: 20px 30px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    min-width: 200px;
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.download-btn i {
    font-size: 2rem;
}

.download-btn div {
    text-align: left;
}

.download-btn span {
    display: block;
    font-size: 0.9rem;
    opacity: 0.8;
}

.download-btn strong {
    font-size: 1.1rem;
    font-weight: 600;
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.footer-section p {
    color: #94a3b8;
    margin-bottom: 30px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.footer-section ul {
    list-style: none;
    space-y: 12px;
}

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

.footer-section ul a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    text-align: center;
    color: #64748b;
}

.footer-bottom p {
    margin: 0;
}

/* 关于我们 */
.about {
    padding: 120px 0;
    background: var(--bg-primary);
}

.about-content {
    margin-top: 60px;
}

.about-story {
    margin-bottom: 80px;
}

.about-story h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.about-story p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.mission-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.value-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 30px;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.value-item i {
    color: var(--primary-color);
    font-size: 2rem;
    margin-top: 5px;
}

.value-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.value-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.team-section {
    margin-bottom: 80px;
}

.team-section h3 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-primary);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.team-member {
    background: white;
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.member-avatar {
    width: 100px;
    height: 100px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 2.5rem;
}

.member-info h4 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.member-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 16px;
}

.member-bio {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.member-social {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.member-social a {
    width: 35px;
    height: 35px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.member-social a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.milestones-section {
    margin-bottom: 80px;
}

.milestones-section h3 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-primary);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-1);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 50%;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: var(--shadow-md);
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-date {
    background: var(--gradient-1);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    margin: 0 30px;
}

.timeline-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #f1f5f9;
    flex: 1;
    margin: 0 30px;
}

.timeline-content h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.partners-section {
    margin-bottom: 80px;
}

.partners-section h3 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-primary);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.partner-logo {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.partner-logo i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.partner-logo span {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.join-us-section {
    background: var(--bg-secondary);
    border-radius: 30px;
    padding: 60px;
    text-align: center;
}

.join-us-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.join-us-content > p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.open-positions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.position-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.position-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.position-item h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.position-item p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.5;
}

.location {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.join-btn {
    margin-top: 20px;
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .scenario-card {
        grid-template-columns: 1fr;
    }
    
    .scenario-image {
        padding: 40px;
    }
    
    .security-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    /* 关于我们移动端响应式 */
    .mission-values {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 50px;
    }
    
    .timeline-item::before {
        left: 20px;
        transform: translateX(-50%);
    }
    
    .timeline-date {
        margin: 0 0 15px 0;
        align-self: flex-start;
    }
    
    .timeline-content {
        margin: 0;
        width: 100%;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .open-positions {
        grid-template-columns: 1fr;
    }
    
    .join-us-section {
        padding: 40px 20px;
    }
    
    .about-story h3,
    .team-section h3,
    .milestones-section h3,
    .partners-section h3,
    .join-us-content h3 {
        font-size: 2rem;
    }
}