.bkbg-cb-app{font-family:system-ui,-apple-system,sans-serif;box-sizing:border-box}.bkbg-cb-wrap{border-radius:12px;padding:28px;margin:0 auto}.bkbg-cb-title{font-family:var(--bkbg-cb-ttl-font-family,inherit);font-size:var(--bkbg-cb-ttl-font-size-d,26px);font-weight:var(--bkbg-cb-ttl-font-weight,700);font-style:var(--bkbg-cb-ttl-font-style,normal);text-transform:var(--bkbg-cb-ttl-text-transform,none);text-decoration:var(--bkbg-cb-ttl-text-decoration,none);line-height:var(--bkbg-cb-ttl-line-height-d,1.2);letter-spacing:var(--bkbg-cb-ttl-letter-spacing-d,normal);word-spacing:var(--bkbg-cb-ttl-word-spacing-d,normal);margin:0 0 6px}.bkbg-cb-subtitle{font-family:var(--bkbg-cb-sub-font-family,inherit);font-size:var(--bkbg-cb-sub-font-size-d,15px);font-weight:var(--bkbg-cb-sub-font-weight,normal);font-style:var(--bkbg-cb-sub-font-style,normal);text-transform:var(--bkbg-cb-sub-text-transform,none);text-decoration:var(--bkbg-cb-sub-text-decoration,none);line-height:var(--bkbg-cb-sub-line-height-d,1.5);letter-spacing:var(--bkbg-cb-sub-letter-spacing-d,normal);word-spacing:var(--bkbg-cb-sub-word-spacing-d,normal);margin:0 0 22px}.bkbg-cb-card{border-radius:10px;padding:20px;margin-bottom:16px;box-shadow:0 2px 8px rgb(0 0 0 / .06)}.bkbg-cb-presets{display:flex;gap:8px;flex-wrap:wrap;border-radius:10px;padding:16px;margin-bottom:16px;box-shadow:0 2px 8px rgb(0 0 0 / .05)}.bkbg-cb-preset-btn{border:none;border-radius:6px;padding:6px 14px;font-size:12px;font-weight:500;cursor:pointer;transition:background 0.15s,color 0.15s}.bkbg-cb-preset-btn:hover{opacity:.85}.bkbg-cb-fields{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:16px}.bkbg-cb-field-col{display:flex;flex-direction:column;align-items:center;gap:6px}.bkbg-cb-field-input{border-radius:8px;padding:10px;text-align:center;font-size:20px;font-family:'Courier New',Courier,monospace;font-weight:700;width:70px;border:2px solid #fff0;outline:none;transition:border-color 0.2s;-moz-appearance:textfield}.bkbg-cb-field-input::-webkit-outer-spin-button,.bkbg-cb-field-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.bkbg-cb-field-input:focus{border-color:currentColor}.bkbg-cb-field-label{font-size:11px;font-weight:600;opacity:.65;text-align:center}.bkbg-cb-expr-display{border-radius:8px;padding:14px;text-align:center;font-family:'Courier New',Courier,monospace;font-size:24px;font-weight:700;letter-spacing:.12em;margin-bottom:14px;user-select:all}.bkbg-cb-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.bkbg-cb-btn{border:none;border-radius:8px;padding:10px 22px;font-size:14px;font-weight:600;cursor:pointer;transition:filter 0.15s;color:#fff}.bkbg-cb-btn:hover{filter:brightness(.9)}.bkbg-cb-btn-outline{background:transparent!important;border:2px solid}.bkbg-cb-desc-card{border-radius:10px;padding:16px 20px;margin-bottom:16px;box-shadow:0 2px 8px rgb(0 0 0 / .05);border-left-width:4px;border-left-style:solid}.bkbg-cb-desc-label{font-size:11px;font-weight:700;opacity:.6;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}.bkbg-cb-desc-text{font-size:16px;line-height:1.5}.bkbg-cb-error{font-size:13px;color:#ef4444;background:#fef2f2;border:1px solid #fecaca;border-radius:6px;padding:8px 14px;margin-bottom:12px}.bkbg-cb-next-title{font-size:14px;font-weight:700;margin-bottom:10px}.bkbg-cb-next-item{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid #f3f4f6;font-size:14px}.bkbg-cb-next-item:last-child{border-bottom:none}.bkbg-cb-next-arrow{font-weight:700;font-size:16px}.bkbg-cb-next-relative{margin-left:auto;font-size:11px;opacity:.6;white-space:nowrap}.bkbg-cb-copy-msg{font-size:13px;text-align:center;height:20px;transition:opacity 0.3s;opacity:0;margin-top:8px}@media (max-width:1024px){.bkbg-cb-title{font-size:var(--bkbg-cb-ttl-font-size-t,var(--bkbg-cb-ttl-font-size-d,26px));line-height:var(--bkbg-cb-ttl-line-height-t,var(--bkbg-cb-ttl-line-height-d,1.2));letter-spacing:var(--bkbg-cb-ttl-letter-spacing-t,var(--bkbg-cb-ttl-letter-spacing-d,normal));word-spacing:var(--bkbg-cb-ttl-word-spacing-t,var(--bkbg-cb-ttl-word-spacing-d,normal))}.bkbg-cb-subtitle{font-size:var(--bkbg-cb-sub-font-size-t,var(--bkbg-cb-sub-font-size-d,15px));line-height:var(--bkbg-cb-sub-line-height-t,var(--bkbg-cb-sub-line-height-d,1.5));letter-spacing:var(--bkbg-cb-sub-letter-spacing-t,var(--bkbg-cb-sub-letter-spacing-d,normal));word-spacing:var(--bkbg-cb-sub-word-spacing-t,var(--bkbg-cb-sub-word-spacing-d,normal))}}@media (max-width:767px){.bkbg-cb-title{font-size:var(--bkbg-cb-ttl-font-size-m,var(--bkbg-cb-ttl-font-size-t,var(--bkbg-cb-ttl-font-size-d,26px)));line-height:var(--bkbg-cb-ttl-line-height-m,var(--bkbg-cb-ttl-line-height-t,var(--bkbg-cb-ttl-line-height-d,1.2)));letter-spacing:var(--bkbg-cb-ttl-letter-spacing-m,var(--bkbg-cb-ttl-letter-spacing-t,var(--bkbg-cb-ttl-letter-spacing-d,normal)));word-spacing:var(--bkbg-cb-ttl-word-spacing-m,var(--bkbg-cb-ttl-word-spacing-t,var(--bkbg-cb-ttl-word-spacing-d,normal)))}.bkbg-cb-subtitle{font-size:var(--bkbg-cb-sub-font-size-m,var(--bkbg-cb-sub-font-size-t,var(--bkbg-cb-sub-font-size-d,15px)));line-height:var(--bkbg-cb-sub-line-height-m,var(--bkbg-cb-sub-line-height-t,var(--bkbg-cb-sub-line-height-d,1.5)));letter-spacing:var(--bkbg-cb-sub-letter-spacing-m,var(--bkbg-cb-sub-letter-spacing-t,var(--bkbg-cb-sub-letter-spacing-d,normal)));word-spacing:var(--bkbg-cb-sub-word-spacing-m,var(--bkbg-cb-sub-word-spacing-t,var(--bkbg-cb-sub-word-spacing-d,normal)))}}.bkbg-cb-copy-msg.bkbg-cb-show{opacity:1}@media (max-width:480px){.bkbg-cb-wrap{padding:16px}.bkbg-cb-field-input{width:56px;font-size:17px}.bkbg-cb-expr-display{font-size:18px}}