/* 公共样式 - 产品官网 */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* 按钮样式 */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color) !important;
}


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

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Pricing Section */
.pricing-section {
    padding: 80px 0;
    background-color: #ffffff;
}

.pricing-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
    background-color: #ffffff;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}

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

.pricing-card.highlight:hover {
    transform: scale(1.05) translateY(-5px);
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.price-unit {
    font-size: 1rem;
    color: #495057;
}

.pricing-card .card-title {
    color: #212529;
}

.pricing-card ul li {
    color: #495057;
}

.badge-popular {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #dc3545;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.card-wrapper {
    position: relative;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

/* Footer */
.footer {
    background-color: #212529;
    color: white;
    padding: 40px 0;
}

.footer a {
    color: #adb5bd !important;
}

.footer a:hover {
    color: #ffffff !important;
}

.footer .text-muted {
    color: #adb5bd !important;
}