/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 应用主题色 */
    --primary: #2196F3;
    --primary-dark: #1976D2;
    --primary-light: #BBDEFB;
    --secondary: #FF9800;
    --success: #4CAF50;
    --danger: #F44336;
    --warning: #FFC107;
    
    /* 文字颜色 */
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --text-light: #999999;
    
    /* 背景色 */
    --bg-light: #F5F7FA;
    --bg-white: #FFFFFF;
    --bg-dark: #1A1A1A;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

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

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

/* 按钮样式 */
.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid #E0E0E0;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* 英雄区 */
.hero {
    padding: 120px 0 var(--spacing-3xl);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: white;
}

.gradient-text {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: white;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

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

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-frame {
    width: 300px;
    height: 600px;
    background: #1A1A1A;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 32px;
    overflow: hidden;
}

.screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 浮动卡片 */
.floating-card {
    position: absolute;
    background: white;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: float 3s ease-in-out infinite;
}

.card-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.card-2 {
    bottom: 15%;
    left: -10%;
    animation-delay: 1.5s;
}

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

.card-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.card-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

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

/* 功能特性 */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.feature-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.feature-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 工作流程 */
.workflow {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.workflow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
}

.workflow-step {
    flex: 1;
    max-width: 300px;
    position: relative;
}

.step-number {
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-light);
    z-index: 0;
}

.step-content {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 1;
    text-align: center;
}

.step-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.step-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.workflow-arrow {
    font-size: 32px;
    color: var(--primary);
    font-weight: 300;
}

/* 价格方案 */
.pricing {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.pricing-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border: 2px solid var(--primary);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--primary);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid #E0E0E0;
}

.pricing-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

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

.price-currency {
    font-size: 20px;
    color: var(--text-secondary);
}

.price-amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
}

.price-period {
    font-size: 16px;
    color: var(--text-secondary);
}

.pricing-save {
    margin-top: 8px;
    color: var(--success);
    font-size: 14px;
    font-weight: 600;
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    padding: 12px 0;
    color: var(--text-secondary);
    font-size: 14px;
    border-bottom: 1px solid #F5F5F5;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-card button {
    width: 100%;
}

/* 用户评价 */
.testimonials {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.testimonial-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.testimonial-rating {
    font-size: 20px;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.author-title {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 下载区域 */
.download {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-2xl);
    align-items: center;
}

.download-title {
    font-size: 42px;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.download-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.download-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

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

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

.download-qr {
    text-align: center;
}

.qr-code {
    background: white;
    padding: 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-sm);
}

.qr-text {
    color: white;
    font-size: 14px;
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.beian-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
    
}
#beian-link{
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}
.beian-link:hover {
    color: white;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: white;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content,
    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .features-grid,
    .pricing-cards,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .workflow-steps {
        flex-direction: column;
    }
    
    .workflow-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid,
    .pricing-cards,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .phone-frame {
        width: 250px;
        height: 500px;
    }
    
    .floating-card {
        display: none;
    }
}