.rbf{margin-bottom: 2rem;}
.rbf-card{background: var(--bs-body-bg,#fff);border-radius: 16px;overflow: hidden;box-shadow: 0 2px 12px rgba(0,0,0,0.06);border: 1px solid rgba(0,0,0,0.06);}
.rbf-strip{display: flex;flex-wrap: wrap;align-items: center;padding: 14px 16px;min-height: 52px;background: linear-gradient(180deg,#fafafa 0%,#f4f4f5 100%);border-bottom: 1px solid rgba(0,0,0,0.06);}
.rbf-strip-actions{display: flex;flex-wrap: wrap;align-items: center;gap: 10px;}
.rbf-btn{display: inline-flex;align-items: center;justify-content: center;min-height: 38px;padding: 0 16px;font-size: 0.875rem;font-weight: 500;border-radius: 10px;border: 1px solid transparent;cursor: pointer;transition: background 0.2s ease,color 0.2s ease,border-color 0.2s ease,transform 0.12s ease;-webkit-tap-highlight-color: transparent;}
.rbf-btn:active{transform: scale(0.98);}
.rbf-btn-primary{background: #a91d3a;color: #fff;border-color: #a91d3a;}
.rbf-btn-primary:hover{background: #8b1630;border-color: #8b1630;color: #fff;}
.rbf-btn-accent{background: #0e7490;color: #fff;border-color: #0e7490;}
.rbf-btn-accent:hover{background: #155e75;border-color: #155e75;color: #fff;}
.rbf-btn-ghost{background: transparent;color: #52525b;border-color: #d4d4d8;}
.rbf-btn-ghost:hover{background: #f4f4f5;color: #18181b;border-color: #a1a1aa;}
.rbf-body{display: flex;flex-direction: column;gap: 0;}
.rbf-pane{display: flex;flex-direction: column;min-height: 260px;}
.rbf-pane-head{display: flex;flex-wrap: wrap;align-items: baseline;justify-content: space-between;gap: 6px 12px;padding: 10px 16px;background: rgba(0,0,0,0.02);border-bottom: 1px solid rgba(0,0,0,0.05);}
.rbf-pane-title{font-size: 0.8125rem;font-weight: 600;letter-spacing: 0.02em;color: var(--bs-body-color,#18181b);}
.rbf-pane-hint{font-size: 0.75rem;color: var(--text-muted,#71717a);}
.rbf-editor{min-height: 440px;height: 280px;}
@media (min-width:768px){.rbf-body{flex-direction: row;min-height: 400px;}.rbf-pane{flex: 1;min-width: 0;min-height: 400px;}.rbf-pane-out{border-left: 1px solid rgba(0,0,0,0.06);}.rbf-editor{flex: 1;min-height: 360px;height: 100%;}}
@media (min-width:992px){.rbf-strip{padding: 16px 20px;}.rbf-pane-head{padding: 12px 20px;}.rbf-editor{min-height: 520px;}}