/* Clean Pro: 简洁消费级默认模板 */
:root {
    --primary: #1d4ed8;
    --primary-dark: #1e40af;
    --secondary: #0f766e;
    --dark: #0f172a;
    --gray: #475569;
    --light-gray: #f8fafc;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #1d4ed8, #0f766e);
}

body {
    background: #ffffff;
}

.hero {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 65%);
}

.navbar {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid #e5e7eb;
}

.feature-card,
.download-card,
.pricing-card,
.faq-item,
.contact-card,
.article-card {
    border: 1px solid #e2e8f0;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}