.b2b-collab-page{background:#f5f5f5;padding:3rem 0;min-height:calc(100vh - 200px)}.b2b-collab-container{max-width:1000px;margin:0 auto;padding:0 2rem}.b2b-collab-header{text-align:center;margin-bottom:2.5rem}.b2b-collab-title{font-size:2.25rem;font-weight:700;color:#f97316;margin:0 0 1rem}.b2b-collab-intro{font-size:1rem;color:#6b7280;margin:0;line-height:1.6}.b2b-collab-form{background:white;border-radius:12px;padding:2.5rem;box-shadow:0 2px 8px rgba(0,0,0,.1)}.b2b-collab-section{margin-bottom:2.5rem;padding-bottom:2rem;border-bottom:1px solid #e5e7eb}.b2b-collab-section:last-of-type{border-bottom:none}.b2b-collab-section-title{font-size:1.5rem;font-weight:600;color:#1f2937;margin:0 0 1.5rem;padding-bottom:.75rem;border-bottom:2px solid #f97316}.b2b-collab-form-grid{display:grid;grid-template-columns:repeat(1,1fr);gap:1rem}.b2b-collab-form-group{display:flex;flex-direction:column;gap:6px}.b2b-collab-form-group.full-width{grid-column:1/-1}.b2b-collab-form-group label{font-size:.875rem;font-weight:500;color:#374151}.b2b-collab-form-group input[type=email],.b2b-collab-form-group input[type=file],.b2b-collab-form-group input[type=tel],.b2b-collab-form-group input[type=text],.b2b-collab-form-group input[type=url],.b2b-collab-form-group select,.b2b-collab-form-group textarea{padding:.5rem .6rem;border:1px solid #d1d5db;border-radius:6px;font-size:.9rem;font-family:inherit;transition:border-color .2s;width:100%;min-height:38px;box-sizing:border-box}.b2b-collab-form-group textarea{min-height:100px;resize:vertical;line-height:1.5}.b2b-collab-form-group input:focus,.b2b-collab-form-group select:focus,.b2b-collab-form-group textarea:focus{outline:none;border-color:#f97316}.b2b-collab-form-group input.error,.b2b-collab-form-group select.error,.b2b-collab-form-group textarea.error{border-color:#dc2626}.b2b-collab-error{color:#dc2626;font-size:.85rem;margin:0}.b2b-collab-hint{font-size:.8rem;color:#6b7280;margin:0}.b2b-collab-radio-group{display:flex;flex-wrap:wrap;gap:1rem 1.5rem;align-items:center}.b2b-collab-radio-group label{display:inline-flex;align-items:center;gap:.4rem;font-weight:400;cursor:pointer}.b2b-collab-radio-group input[type=radio]{accent-color:#f97316;cursor:pointer}.b2b-collab-form-actions{margin-top:2rem;display:flex;justify-content:center}.b2b-collab-submit-btn{background:#f97316;color:white;border:none;border-radius:8px;padding:1rem 2.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s;display:flex;align-items:center;justify-content:center;gap:.5rem;min-width:260px}.b2b-collab-submit-btn:hover:not(:disabled){background:#ea580c}.b2b-collab-submit-btn:disabled{opacity:.7;cursor:not-allowed}.b2b-collab-spin{animation:b2b-collab-spin 1s linear infinite}@keyframes b2b-collab-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@media (min-width:640px){.b2b-collab-form-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:768px){.b2b-collab-form-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:576px){.b2b-collab-title{font-size:22px}.b2b-collab-container{padding-inline:12px}.b2b-collab-form{padding:20px 12px}}