/* ===== metro_jade: 墨玉 ===== */
:root {
    --tpl-primary: #2d4a3e;
    --tpl-secondary: #5f8575;
    --tpl-accent: #3d6b54;
    --tpl-hero-bg: #f0f5f2;
    --tpl-dark: #1a2a22;
    --tpl-light: #f5faf7;
    --tpl-border: rgba(0,0,0,0.1);
    --tpl-text: #333;
    --tpl-text-light: #666;
    --tpl-radius: 8px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; background: #fff; color: #333; line-height: 1.6; }
a { color: var(--tpl-primary); text-decoration: none; transition: all 0.3s; }
a:hover { color: var(--tpl-accent); }
img { max-width: 100%; height: auto; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 15px; }

/* Header */
.metro-header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 1000; }
.metro-nav { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; }
.metro-logo { font-size: 24px; font-weight: 700; color: var(--tpl-primary); display: flex; align-items: center; gap: 10px; }
.metro-logo-icon { width: 40px; height: 40px; background: var(--tpl-primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.metro-menu { display: flex; gap: 30px; list-style: none; }
.metro-menu a { color: #333; font-size: 15px; padding: 8px 0; position: relative; }
.metro-menu a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--tpl-accent); transition: width 0.3s; }
.metro-menu a:hover::after { width: 100%; }

/* Hero */
.metro-hero { background: var(--tpl-hero-bg); min-height: 500px; display: flex; align-items: center; padding: 80px 0; }
.metro-hero-content { max-width: 600px; }
.metro-hero h1 { font-size: 2.8rem; font-weight: 800; color: var(--tpl-dark); margin-bottom: 20px; line-height: 1.3; }
.metro-hero h1 span { color: var(--tpl-accent); }
.metro-hero p { font-size: 1.1rem; color: #666; margin-bottom: 30px; line-height: 1.8; }
.metro-hero-badges { display: flex; gap: 15px; flex-wrap: wrap; }
.metro-badge { background: var(--tpl-accent); color: #fff; padding: 8px 16px; border-radius: 20px; font-size: 14px; }
.metro-btn { display: inline-block; padding: 14px 32px; background: var(--tpl-primary); color: #fff; border-radius: var(--tpl-radius); font-weight: 600; transition: all 0.3s; }
.metro-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); color: #fff; }
.metro-btn-outline { background: transparent; border: 2px solid var(--tpl-primary); color: var(--tpl-primary); }

/* Stats */
.metro-stats { background: var(--tpl-dark); color: #fff; padding: 60px 0; }
.metro-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.metro-stat-item { padding: 20px; }
.metro-stat-num { font-size: 3rem; font-weight: 800; color: var(--tpl-accent); }
.metro-stat-label { font-size: 14px; color: rgba(255,255,255,0.7); margin-top: 5px; }

/* About */
.metro-about { padding: 80px 0; background: #fff; }
.metro-section-title { text-align: center; margin-bottom: 50px; }
.metro-section-title h2 { font-size: 2rem; font-weight: 700; color: var(--tpl-dark); margin-bottom: 10px; }
.metro-section-title p { color: #666; font-size: 1rem; }
.metro-about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.metro-about-img { border-radius: var(--tpl-radius); overflow: hidden; aspect-ratio: 16/10; background: var(--tpl-hero-bg); display: flex; align-items: center; justify-content: center; }
.metro-about-img i { font-size: 4rem; color: var(--tpl-accent); opacity: 0.5; }
.metro-about-text h3 { font-size: 1.5rem; color: var(--tpl-dark); margin-bottom: 20px; }
.metro-about-text p { color: #555; margin-bottom: 15px; line-height: 1.8; }

/* Products */
.metro-products { padding: 80px 0; background: var(--tpl-hero-bg); }
.metro-products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.metro-product-card { background: #fff; border-radius: var(--tpl-radius); overflow: hidden; box-shadow: 0 4px 15px rgba(0,0,0,0.05); transition: all 0.3s; }
.metro-product-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.metro-product-img { height: 200px; background: var(--tpl-hero-bg); display: flex; align-items: center; justify-content: center; }
.metro-product-img i { font-size: 3rem; color: var(--tpl-accent); opacity: 0.5; }
.metro-product-info { padding: 20px; }
.metro-product-info h4 { font-size: 1.1rem; color: var(--tpl-dark); margin-bottom: 10px; }
.metro-product-info p { color: #666; font-size: 14px; }

/* News */
.metro-news { padding: 80px 0; background: #fff; }
.metro-news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.metro-news-card { background: var(--tpl-hero-bg); border-radius: var(--tpl-radius); padding: 25px; transition: all 0.3s; }
.metro-news-card:hover { background: var(--tpl-light); box-shadow: 0 4px 15px rgba(0,0,0,0.08); }
.metro-news-date { color: var(--tpl-accent); font-size: 13px; margin-bottom: 10px; }
.metro-news-card h4 { font-size: 1rem; color: var(--tpl-dark); margin-bottom: 10px; line-height: 1.5; }
.metro-news-card p { color: #666; font-size: 14px; }

/* CTA */
.metro-cta { background: linear-gradient(135deg, var(--tpl-dark), var(--tpl-primary)); color: #fff; padding: 80px 0; text-align: center; }
.metro-cta h2 { font-size: 2rem; margin-bottom: 15px; }
.metro-cta p { opacity: 0.8; margin-bottom: 30px; }
.metro-cta .metro-btn { background: var(--tpl-accent); color: #fff; }

/* Footer */
.metro-footer { background: var(--tpl-dark); color: rgba(255,255,255,0.7); padding: 60px 0 30px; }
.metro-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.metro-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 20px; }
.metro-footer ul { list-style: none; }
.metro-footer ul li { margin-bottom: 10px; }
.metro-footer ul a { color: rgba(255,255,255,0.6); font-size: 14px; }
.metro-footer ul a:hover { color: var(--tpl-accent); }
.metro-footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; text-align: center; font-size: 13px; }

/* Responsive */
@media (max-width: 768px) {
    .metro-menu { display: none; }
    .metro-hero h1 { font-size: 2rem; }
    .metro-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .metro-about-grid, .metro-products-grid, .metro-news-grid { grid-template-columns: 1fr; }
    .metro-footer-grid { grid-template-columns: 1fr 1fr; }
}