/* iOS风格首页 - PC端 */

/* 动态背景背景球 */
.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    z-index: 0;
}

.bg-blob-1 {
    width: 500px;
    height: 500px;
    background: var(--gradient-start);
    top: -100px;
    right: -100px;
    animation: float 6s ease-in-out infinite;
}

.bg-blob-2 {
    width: 400px;
    height: 400px;
    background: var(--gradient-end);
    bottom: 10%;
    left: -100px;
    animation: float 8s ease-in-out infinite reverse;
}

.bg-blob-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    top: 50%;
    left: 30%;
    animation: float 10s ease-in-out infinite 2s;
}

/* Hero区域 */
.hero-section {
    position: relative;
    height: 50vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    overflow: hidden;
    background: radial-gradient(ellipse at 50% 50%, rgba(5, 175, 181, 0.05) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero-content > div {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 32px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* 特性区域 */
.features-section {
    padding: 100px 20px;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.68);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 24px;
    padding: 42px 32px;
    transition: all 0.45s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.06),
        0 1px 2px rgba(0, 0, 0, 0.04);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow:
        0 16px 48px rgba(0, 0, 0, 0.12),
        0 4px 12px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.85);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 28px;
    color: white;
    box-shadow:
        0 4px 16px rgba(5, 175, 181, 0.3),
        0 1px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow:
        0 8px 24px rgba(5, 175, 181, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.15);
}

.feature-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 产品区域 */
.products-section {
    padding: 100px 20px;
    background: var(--bg-secondary);
    position: relative;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.45s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.06),
        0 1px 2px rgba(0, 0, 0, 0.04);
}

.product-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow:
        0 16px 48px rgba(0, 0, 0, 0.12),
        0 4px 12px rgba(0, 0, 0, 0.08);
    background: rgba(255, 255, 255, 0.88);
}

.product-image {
    height: 260px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-content {
    padding: 30px;
}

.product-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 12px;
}

.product-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 统计数据区域 */
.stats-section {
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

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

.stat-number {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 8px;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* CTA区域 */
.cta-section {
    padding: 120px 20px;
    position: relative;
}

.cta-card {
    max-width: 900px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    padding: 60px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.cta-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0 20px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cta-card {
        padding: 40px 24px;
    }
    
    .cta-title {
        font-size: 28px;
    }
}