@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;900&display=swap";:root{--bp-blue: #2563eb;--bp-blue-dark: #1d4ed8;--bp-blue-light: #eff6ff;--bp-green: #059669;--bp-green-light: #ecfdf5;--bp-purple: #7c3aed;--bp-purple-light: #f5f3ff;--bp-red: #dc2626;--bp-navy: #0f172a;--bp-gray-50: #f8fafc;--bp-gray-100: #f1f5f9;--bp-gray-200: #e2e8f0;--bp-gray-600: #475569;--bp-gray-900: #0f172a;--bp-radius: 10px;--bp-radius-lg: 16px;--bp-shadow: 0 4px 24px rgba(15, 23, 42, .08);--bp-shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);--font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--font-en: "Inter", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);color:var(--bp-gray-900);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:1200px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--bp-radius);border:none;font-family:var(--font);font-weight:600;font-size:.95rem;cursor:pointer;transition:all .2s ease}.btn-primary{background:var(--bp-blue);color:#fff;box-shadow:0 4px 14px #2563eb59}.btn-primary:hover{background:var(--bp-blue-dark);transform:translateY(-1px)}.btn-green{background:var(--bp-green);color:#fff}.btn-green:hover{filter:brightness(1.05);transform:translateY(-1px)}.btn-purple{background:var(--bp-purple);color:#fff}.btn-purple:hover{filter:brightness(1.05);transform:translateY(-1px)}.btn-outline{background:#fff;border:1.5px solid var(--bp-gray-200);color:var(--bp-gray-900)}.btn-outline:hover{border-color:var(--bp-blue);color:var(--bp-blue)}.btn-lg{padding:14px 32px;font-size:1rem;border-radius:var(--bp-radius-lg)}.card{background:#fff;border-radius:var(--bp-radius-lg);box-shadow:var(--bp-shadow);border:1px solid var(--bp-gray-200)}.section{padding:72px 0}.section-gray{background:var(--bp-gray-50)}.section-title{font-size:clamp(1.75rem,3vw,2.125rem);font-weight:900;letter-spacing:.02em;text-align:center;margin-bottom:12px}.section-sub{text-align:center;color:var(--bp-gray-600);margin-bottom:40px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.form-group{margin-bottom:18px}.form-group label{display:block;font-weight:600;margin-bottom:8px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border:1.5px solid var(--bp-gray-200);border-radius:var(--bp-radius);font-family:var(--font);font-size:1rem}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--bp-blue);box-shadow:0 0 0 3px #2563eb1f}.form-field{margin-bottom:22px}.form-field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:8px;color:var(--bp-gray-900)}.form-field label .req{color:var(--bp-red);margin-left:2px}.form-field input,.form-field select,.form-field textarea{width:100%;padding:14px 16px;border:none;background:var(--bp-gray-50);border-radius:var(--bp-radius);font-family:var(--font);font-size:1rem;transition:background .2s,box-shadow .2s}.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;background:#fff;box-shadow:0 0 0 2px #2563eb33}.form-field textarea{resize:vertical;min-height:100px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}.form-actions{margin-top:32px}.form-actions .btn{width:100%;padding:16px;font-size:1rem}.form-error{color:#ef4444;background:#fef2f2;padding:12px 16px;border-radius:var(--bp-radius);margin-bottom:16px;font-size:.9rem}.form-hint{color:var(--bp-gray-600);font-size:.85rem;margin-bottom:24px}.form-footer-link{margin-top:24px;text-align:center;color:var(--bp-gray-600);font-size:.9rem}.form-footer-link a{color:var(--bp-blue);font-weight:600}@media (max-width: 640px){.form-row{grid-template-columns:1fr}}@media (max-width: 960px){.grid-3,.grid-4{grid-template-columns:1fr}.section{padding:48px 0}}