/* 青岛北海密封 - 精密制造专业风格 */
:root { --precision-blue: #34495e; --precision-gray: #95a5a6; --precision-orange: #e67e22; }
body { background: #ecf0f1; color: #2c3e50; }
.navbar { background: linear-gradient(135deg, var(--precision-blue), #2c3e50); border-bottom: 3px solid var(--precision-orange); }
.hero { background: linear-gradient(135deg, rgba(52,73,94,0.95), rgba(44,62,80,0.9)); min-height: 80vh; }
.precision-title { font-size: 4rem; font-weight: 900; color: white; text-transform: uppercase; letter-spacing: 3px; }
.tech-spec { background: white; padding: 1.5rem; border-left: 4px solid var(--precision-orange); margin: 1rem 0; }
.machinery-card { background: white; border: 2px solid #ddd; border-radius: 10px; padding: 2rem; transition: all 0.3s; }
.machinery-card:hover { border-color: var(--precision-orange); transform: translateY(-10px); box-shadow: 0 20px 50px rgba(230, 126, 34, 0.2); }
.tolerance-value { font-size: 2rem; font-weight: 900; color: var(--precision-orange); font-family: monospace; }