/* ฟอร์มลงทะเบียนในหน้า /ai-business/first-business/ — แต่งให้เข้ากับ style.css ของหน้า (โคบอลต์–ขาวนวล–ส้ม) */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.so-form{margin-top:18px}
.so-form .round-picker{margin-bottom:6px}
.so-field{margin:0 0 12px;border:0;padding:0}
.so-field label,.so-field legend{display:block;font-size:.82rem;font-weight:500;margin-bottom:6px}
.so-field input[type=text],.so-field input[type=tel],.so-field input[type=email],.so-field input[type=number]{width:100%;box-sizing:border-box;border:1px solid var(--line);background:#fff;border-radius:7px;padding:11px 12px;font:inherit;font-size:.95rem;color:var(--navy)}
.so-field input:focus{outline:2px solid var(--blue);outline-offset:0}
.so-status label{display:inline-flex;align-items:center;gap:8px;margin:0 18px 6px 0;font-weight:400}
.so-status input{accent-color:var(--blue)}
.so-row{display:grid;grid-template-columns:1.4fr 1fr;gap:10px}
.so-consent{display:flex;gap:10px;align-items:flex-start;font-size:.75rem;line-height:1.6;color:var(--muted);margin:6px 0 14px}
.so-consent input{margin-top:4px;accent-color:var(--blue);flex:0 0 auto}
.so-consent a{text-decoration:underline}
.so-form .register-button{width:100%;border:0;cursor:pointer;font:inherit}
.so-status-msg{font-size:.85rem;margin:10px 0 0;min-height:1em}
.so-status-msg.ok{background:#e8eefc;color:var(--blue);border-radius:7px;padding:10px 12px}
.so-status-msg.err{color:var(--orange)}
.so-status-msg a{text-decoration:underline}
.so-form .round-picker{border:0;padding:0;margin:0 0 6px}
.so-form .round-picker legend{font-size:.85rem;font-weight:600;margin-bottom:10px}
.so-form .round-picker label{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:8px;cursor:pointer}
.so-form .round-picker label:has(input:checked){border-color:var(--blue);background:#e8eefc;box-shadow:inset 0 0 0 1px var(--blue)}
.so-form .round-picker input{accent-color:var(--blue);width:17px;height:17px;margin:0}
.so-form .round-picker strong{font-size:.9rem;font-weight:600}