/* 璞玉todo 产品展示页 - 品牌色与响应式 */

:root {
    --jade: #2E5C4F;
    --jade-dark: #1B3A31;
    --jade-light: #4A7C6A;
    --gold: #B8860B;
    --gold-light: #D4A61F;
    --bg-base: #F5F5F5;
    --bg-card: #FFFFFF;
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-on-primary: #FFFFFF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Hero 区 */
.hero {
    background: linear-gradient(135deg, var(--jade) 0%, var(--jade-dark) 100%);
    color: var(--text-on-primary);
    padding: 4rem 1.5rem;
    text-align: center;
}

.hero-content {
    max-width: 640px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.hero-slogan {
    font-size: 1.25rem;
    color: var(--gold-light);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero-desc {
    font-size: 1rem;
    opacity: 0.95;
}

/* 功能展示 */
.features {
    padding: 4rem 1.5rem;
    max-width: 960px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 1.75rem;
    color: var(--jade);
    margin-bottom: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(46, 92, 79, 0.08);
    border: 1px solid rgba(46, 92, 79, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(46, 92, 79, 0.15);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    color: var(--jade);
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* CTA */
.cta {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    color: var(--text-on-primary);
    padding: 3rem 1.5rem;
    text-align: center;
}

.cta-content h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.cta-content p {
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.2s;
}

.btn:hover {
    opacity: 0.9;
}

.btn-primary {
    background: var(--jade);
    color: var(--text-on-primary);
}

/* Footer */
.footer {
    background: var(--jade-dark);
    color: var(--text-on-primary);
    padding: 2rem 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}

.footer p {
    margin-bottom: 0.25rem;
}

.footer-copy {
    opacity: 0.8;
}

/* 响应式 */
@media (max-width: 600px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-slogan {
        font-size: 1.1rem;
    }

    .features {
        padding: 3rem 1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}