:root{--bg:#f7f8fa;--card:#ffffff;--fg:#1a1d24;--muted:#6b7280;--primary:#2563eb;--primary-dark:#1d4ed8;--danger:#dc2626;--warning:#d97706;--border:#e5e7eb;--shadow:0 1px 2px rgba(0,0,0,0.04),0 8px 24px rgba(15,23,42,0.06)}*{box-sizing:border-box}body,html{padding:0;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Hiragino Kaku Gothic ProN,ヒラギノ角ゴ ProN W3,Meiryo,sans-serif;background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased}main{max-width:720px;margin:0 auto;padding:32px 20px 80px}.card{background:var(--card);border-radius:14px;box-shadow:var(--shadow);padding:28px;border:1px solid var(--border)}.brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--border)}.brand-name{font-weight:700;font-size:15px;letter-spacing:.02em;color:var(--fg)}.brand-tag{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.04em;background:#fef3c7;color:#92400e;border:1px solid #fde68a}h1{font-size:20px;margin:0 0 8px}.muted{color:var(--muted);font-size:14px;line-height:1.6}.dropzone{margin-top:20px;border:2px dashed var(--border);border-radius:12px;padding:32px;text-align:center;background:#fafbfc;cursor:pointer;transition:all .15s ease}.dropzone.dragging,.dropzone:hover{border-color:var(--primary);background:#eff6ff}.dropzone input{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;border-radius:10px;border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:all .15s ease}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-primary:disabled{background:#94a3b8;cursor:not-allowed}.btn-secondary{background:#fff;color:var(--fg);border-color:var(--border)}.btn-secondary:hover{background:#f3f4f6}.field-row{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field-row label{font-size:13px;color:var(--muted);font-weight:600}.field-row input{height:44px;padding:0 12px;border:1px solid var(--border);border-radius:8px;font-size:15px;background:#fff}.field-row input:focus{outline:2px solid var(--primary);outline-offset:-2px;border-color:var(--primary)}.field-warning input{border-color:var(--warning);background:#fffbeb}.alert{padding:14px 16px;border-radius:10px;font-size:14px;margin:16px 0}.alert-error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.alert-warning{background:#fffbeb;color:var(--warning);border:1px solid #fde68a}.alert-info{background:#eff6ff;color:var(--primary-dark);border:1px solid #bfdbfe}.consent{display:flex;gap:10px;align-items:flex-start;padding:14px;background:#f9fafb;border-radius:10px;border:1px solid var(--border);font-size:13px;line-height:1.6}.consent input[type=checkbox]{margin-top:3px;flex-shrink:0;width:18px;height:18px}.actions{display:flex;gap:12px;margin-top:24px}.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;margin-right:8px}@keyframes spin{to{transform:rotate(1turn)}}.preview{margin-top:16px;border-radius:10px;overflow:hidden;border:1px solid var(--border);max-height:240px}.preview img{width:100%;height:auto;display:block}footer{text-align:center;margin-top:40px;color:var(--muted);font-size:12px}