/* Databricks风格升级 - 贵气科技感设计 */

/* 全局字体和基础样式优化 */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background: #ffffff;
}

/* 高端渐变背景 */
.hero {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #fff5f0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 106, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 106, 0, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* 现代化标题样式 */
.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: #1a1a1a;
    margin-bottom: 1.5rem;
}

.hero .subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

/* 高端按钮设计 */
.cta-button, .btn-primary {
    background: linear-gradient(135deg, #FF6A00 0%, #FF8533 100%);
    border: none;
    border-radius: 12px;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(255, 106, 0, 0.3);
}

.cta-button:hover, .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 106, 0, 0.4);
}

/* 卡片设计升级 */
.feature-card, .mission-card, .vision-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid #f3f4f6;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before, .mission-card::before, .vision-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6A00, #FF8533);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover, .mission-card:hover, .vision-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

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

/* 现代化导航栏 */
.navbar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1rem 5%;
}

.nav-links a {
    font-weight: 500;
    color: #374151;
    transition: color 0.2s ease;
    position: relative;
}

.nav-links a:hover {
    color: #FF6A00;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: #FF6A00;
    border-radius: 1px;
}

/* 高端footer设计 */
.unified-footer {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
    padding: 4rem 0 2rem;
    margin-top: 6rem;
    position: relative;
}

.unified-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #FF6A00, transparent);
}

/* 响应式优化 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .subtitle {
        font-size: 1.125rem;
    }
    
    .feature-card, .mission-card, .vision-card {
        padding: 1.5rem;
    }
}

/* 微交互动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card, .mission-card, .vision-card {
    animation: fadeInUp 0.6s ease-out;
}

/* 高端色彩系统 */
:root {
    --primary-orange: #FF6A00;
    --secondary-orange: #FF8533;
    --accent-orange: #FFA366;
    --light-orange: #FFF2E6;
    --dark-gray: #1a1a1a;
    --medium-gray: #6b7280;
    --light-gray: #f3f4f6;
    --white: #ffffff;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.2);
}