/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    position: relative;
    height: 100vh;
}

/* 导航指示器 */
.section-navigation {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    margin: 8px 0;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.nav-dot:hover,
.nav-dot.active {
    background: white;
    border-color: white;
    transform: scale(1.2);
}

.nav-dot:hover::after,
.nav-dot.active::after {
    content: attr(title);
    position: absolute;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
}

/* 滚动提示 */
.scroll-hint {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    z-index: 1000;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* 容器和section基础样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.section {
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(50px);
    transition: all 0.6s ease;
}

.section.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.8;
}

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

.tag {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Tech Section */
.tech-section {
    background: linear-gradient(135deg, #36d1dc 0%, #5b86e5 100%);
    color: white;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    width: 100%;
}

.tech-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 1rem;
    text-align: center;
    transition: transform 0.3s ease;
}

.tech-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.2);
}

.tech-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.tech-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.tech-card p {
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.tech-stats {
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem;
    border-radius: 8px;
}

/* Process Section */
.process-section {
    background: linear-gradient(135deg, #ff9a56 0%, #ff6b6b 100%);
    color: white;
}

.process-timeline {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    width: 100%;
    margin-bottom: 3rem;
}

.process-step {
    text-align: center;
    max-width: 200px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.process-arrow {
    font-size: 2rem;
    color: white;
    opacity: 0.7;
}

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

.feature-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.feature-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.feature-item p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
    width: 100%;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1.2rem;
    border-radius: 15px;
    text-align: center;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

.achievement-showcase {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2rem;
    border-radius: 15px;
    width: 100%;
}

.achievement-showcase h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: white;
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.achievement-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.achievement-item h4 {
    color: white;
    margin-bottom: 0.5rem;
}

/* Advantage Section */
.advantage-section {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    color: white;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.advantage-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.2);
}

.advantage-icon {
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
}

.advantage-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: white;
}

/* Partners Section */
.partners-section {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.partner-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.8rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
}

.partner-card:hover {
    transform: translateY(-5px);
}

.partner-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.partner-card h3 {
    color: white;
    margin-bottom: 0.3rem;
    font-size: 0.95rem;
}

.partner-card p {
    font-size: 0.8rem;
    opacity: 0.9;
}

/* Join Section */
.join-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.join-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    width: 100%;
    align-items: start;
}

.join-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1.5rem;
    border-radius: 15px;
}

.join-steps {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.join-step {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.step-num {
    width: 30px;
    height: 30px;
    background: white;
    color: #667eea;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 1rem;
}

.usage-tips {
    margin-top: 2rem;
}

.usage-tips h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

.tip-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 8px;
}

.tip-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.tip-item h5 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.tip-item p {
    font-size: 0.85rem;
    opacity: 0.9;
}

.contact-info {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem;
    border-radius: 12px;
}

.contact-info h4 {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.contact-info p {
    margin-bottom: 0.3rem;
    opacity: 0.9;
    font-size: 0.8rem;
}

.service-time {
    margin-top: 0.8rem;
    margin-bottom: 0.8rem;
}

.service-time h5 {
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.service-time p {
    margin-bottom: 0.2rem;
    font-size: 0.8rem;
}

.quick-access {
    margin-top: 0.8rem;
}

.quick-access h5 {
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.access-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.access-link {
    color: white;
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    font-size: 0.8rem;
    transition: background-color 0.3s;
}

.access-link:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .tech-grid,
    .stats-grid,
    .advantage-grid,
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .join-content {
        grid-template-columns: 1fr;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .process-timeline {
        flex-direction: column;
    }
    
    .process-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .feature-details {
        grid-template-columns: 1fr;
    }
    
    .section-navigation {
        right: 15px;
    }
}