.rchat{position:fixed;top:40px;right:0;width:630px;max-width:100vw;max-height:calc(100vh - 40px);padding:var(--pad-lg,16px);background-color:var(--color-surface-card);border-left:1px solid var(--color-border-subtle);border-bottom:1px solid var(--color-border-subtle);border-radius:0 0 0 var(--radius-lg);box-shadow:-4px 4px 16px rgba(0,0,0,.08);z-index:900;display:flex;flex-direction:column}.rchat__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--gap-md,12px)}.rchat__title{margin:0;font-size:var(--font-size-t4,16px);font-weight:var(--font-weight-semibold,600)}.rchat__close,.rchat__title{color:var(--color-text-default)}.rchat__close{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;padding:0;border:none;border-radius:var(--radius-xs);background:transparent;cursor:pointer;transition:background-color .15s}.rchat__close:hover{background-color:var(--color-bg-inset)}.rchat__close:focus-visible{outline:2px solid var(--color-border-focus);outline-offset:1px}.rchat__body{flex:1 1 auto;min-height:0;background-color:var(--color-bg-inset);border-radius:var(--radius-lg);overflow:hidden}.rchat__scroll{height:100%;overflow-y:auto;padding:var(--pad-lg,16px) var(--pad-md,16px);display:flex;flex-direction:column;gap:var(--gap-md,12px)}.rchat__empty{margin:0;padding:var(--pad-2xl,24px);text-align:center;color:var(--color-text-placeholder);font-size:var(--font-size-t7,13px)}.rchat__row{display:flex;align-items:center;gap:var(--gap-sm,8px);max-width:100%}.rchat__row--customer{justify-content:flex-start}.rchat__row--me{justify-content:flex-end}.rchat__avatar{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:40px;height:40px;border-radius:50%;font-size:var(--font-size-t7,13px);font-weight:var(--font-weight-semibold,600)}.rchat__avatar--customer{background-color:var(--color-lnb-1depth-bg-default);color:var(--color-text-inset)}.rchat__avatar--me{background-color:var(--color-bg-section);color:var(--color-text-secondary)}.rchat__bubble{margin:0;max-width:540px;padding:8px 14px;background-color:var(--color-surface-card);border:1px solid var(--color-border-subtle);border-radius:18px;font-size:var(--font-size-t7,13px);line-height:var(--line-height-t6,1.4);color:var(--color-text-default);word-break:break-word}.rchat__bubble--customer{border-bottom-left-radius:4px}.rchat__bubble--me{border-bottom-right-radius:4px}.rchat__time{flex-shrink:0;font-size:var(--font-size-t8,12px);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.rchat__note,.rchat__time{color:var(--color-text-placeholder)}.rchat__note{margin:var(--gap-sm,8px) 0 0;font-size:var(--font-size-t8,12px)}