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768px){.contact-title{font-size:28px}.contact-grid{grid-template-columns:1fr;gap:40px}.form-row{grid-template-columns:1fr}}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding-top:80px}:root{--primary-blue: #1e88e5;--primary-dark: #0d47a1;--primary-light: #64b5f6;--gradient-blue: linear-gradient(135deg, #1e88e5 0%, #0d47a1 100%);--text-dark: #1a1a2e;--text-gray: #5a6a7a;--text-light: #8a9aa8;--bg-light: #f5f9ff;--bg-gray: #e8eef5;--shadow-sm: 0 2px 8px rgba(30, 136, 229, .1);--shadow-md: 0 4px 20px rgba(30, 136, 229, .15);--shadow-lg: 0 8px 40px rgba(30, 136, 229, .2)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text-dark);line-height:1.6;background:#f8fafc}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 28px;font-size:15px;font-weight:600;border-radius:8px;text-decoration:none;cursor:pointer;transition:all .3s ease;border:none;font-family:inherit}.btn-primary{background:var(--gradient-blue);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-secondary{background:#fff;color:var(--primary-blue);border:2px solid var(--primary-blue)}.btn-secondary:hover{background:var(--bg-light)}.btn-full{width:100%}.section-container{max-width:1200px;margin:0 auto;padding:0 24px}.page-badge{display:inline-block;padding:8px 16px;background:var(--gradient-blue);color:#fff;font-size:13px;font-weight:600;border-radius:20px;margin-bottom:16px}.section-title{font-size:32px;font-weight:700;color:var(--text-dark);text-align:center;margin-bottom:12px}.section-subtitle{font-size:16px;color:var(--text-gray);text-align:center;margin-bottom:48px}@media (max-width: 768px){.main-content{padding-top:70px}.section-title{font-size:24px}.btn{padding:10px 20px;font-size:14px}}