.guestbook-page{position:relative;display:flex;justify-content:center;width:100vw;height:calc(100dvh - var(--guestbook-viewport-offset));margin-right:calc(50% - 50vw);margin-left:calc(50% - 50vw)}.guestbook-page .guestbook-chat{width:min(100%,var(--guestbook-chat-max-width));height:100%;min-height:0;border-radius:var(--radius-large)}.guestbook-chat{position:relative;display:grid;grid-template-rows:auto minmax(0,1fr);width:100%;height:var(--guestbook-chat-height);min-height:var(--guestbook-chat-min-height);overflow:hidden;border:1px solid var(--guestbook-line);border-radius:var(--radius-large);background:var(--guestbook-surface);color:var(--deep-text)}.guestbook-chat button{font:inherit;cursor:pointer}.guestbook-chat button:disabled{cursor:not-allowed;opacity:.48}.guestbook-chat button:focus-visible{outline:2px solid var(--guestbook-focus);outline-offset:2px}.guestbook-chat textarea:focus-visible,.guestbook-chat input:focus-visible{outline:0}.guestbook-chat input,.guestbook-chat textarea,.guestbook-chat input:focus,.guestbook-chat textarea:focus,.guestbook-chat input:focus-visible,.guestbook-chat textarea:focus-visible{box-shadow:none;outline:0}.guestbook-chat button:focus:not(:focus-visible),.guestbook-chat textarea:focus:not(:focus-visible),.guestbook-chat input:focus:not(:focus-visible){outline:0}.guestbook-chat__header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);min-height:4.25rem;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--guestbook-line);background:var(--guestbook-panel);z-index:3}.guestbook-chat__channel,.guestbook-chat__actions,.guestbook-chat__sync,.guestbook-chat__status,.guestbook-chat__sync-error,.guestbook-chat__new-messages{display:flex;align-items:center}.guestbook-chat__channel{min-width:0;gap:var(--space-3)}.guestbook-chat__channel>div{min-width:0}.guestbook-chat__mobile-channel-refresh{display:none}.guestbook-chat__empty-mark{display:grid;place-items:center;flex:0 0 auto;width:var(--guestbook-avatar-size);height:var(--guestbook-avatar-size);border-radius:var(--radius-medium);background:var(--guestbook-bubble);color:var(--guestbook-bubble-text);font:700 .75rem/1 ui-monospace,SFMono-Regular,Consolas,monospace}.guestbook-chat__title-row{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-1)}.guestbook-chat__title-row h2{margin:0;font-size:1.5rem;font-weight:800;line-height:1.2;letter-spacing:0}.guestbook-chat__title-row>span{color:var(--guestbook-muted);font-size:.75rem}.guestbook-chat__status{gap:var(--space-1);color:var(--guestbook-muted);font-size:.75rem;line-height:1.2}.guestbook-chat__sync{gap:var(--space-1)}.guestbook-chat__status.is-failed{color:var(--guestbook-danger)}.guestbook-chat__status>span{width:.4375rem;height:.4375rem;border-radius:var(--radius-full);background:var(--guestbook-success)}.guestbook-chat__status>span.is-offline{background:var(--guestbook-danger)}.guestbook-chat__actions{flex:0 0 auto;gap:var(--space-2)}.guestbook-chat__sidebar-toggle{display:none;align-items:center;justify-content:center;gap:var(--space-1);min-height:var(--control-size);padding:0 var(--space-3);border:1px solid var(--guestbook-line);border-radius:var(--radius-medium);background:transparent;color:var(--deep-text)}.guestbook-chat__refresh{display:grid;place-items:center;flex:0 0 auto;width:1.75rem;height:1.75rem;padding:0;border:0;background:transparent;color:var(--guestbook-danger);transition:color .18s ease,opacity .18s ease}.guestbook-chat__refresh svg{display:block}.guestbook-chat__refresh:hover:not(:disabled) svg{animation:guestbook-refresh-once .36s ease-out}.guestbook-chat__refresh.is-syncing svg{animation:guestbook-spin .85s linear infinite}.guestbook-chat__refresh:disabled{color:var(--guestbook-danger);cursor:not-allowed;opacity:.42}.guestbook-chat__workspace{position:relative;display:grid;grid-template-columns:minmax(0,1fr) var(--guestbook-sidebar-width);min-height:0;overflow:hidden}.guestbook-chat__conversation{position:relative;display:grid;grid-template-rows:minmax(0,1fr) auto;min-width:0;min-height:0}.guestbook-chat__announcement-bar{position:absolute;top:var(--space-3);left:clamp(var(--space-3),2vw,var(--space-5));right:clamp(var(--space-3),2vw,var(--space-5));z-index:2;display:flex;align-items:center;gap:var(--space-2);min-height:2.75rem;padding:var(--space-2) var(--space-2) var(--space-2) var(--space-3);border:1px solid color-mix(in srgb,var(--guestbook-danger) 68%,transparent);border-radius:var(--radius-medium);background:color-mix(in srgb,var(--guestbook-danger) 9%,var(--guestbook-surface));box-shadow:0 .375rem 1.25rem #00000014;backdrop-filter:blur(.75rem)}.guestbook-chat__announcement-bar-label{display:inline-flex;align-items:center;gap:var(--space-1);flex:0 0 auto;color:var(--guestbook-danger);font-size:.82rem}.guestbook-chat__announcement-bar-items{display:flex;align-items:center;gap:var(--space-1);min-width:0;overflow-x:auto;scrollbar-width:none}.guestbook-chat__announcement-bar-items::-webkit-scrollbar{display:none}.guestbook-chat__announcement-bar-items button{min-width:max-content;padding:var(--space-1) var(--space-2);border:0;border-radius:var(--radius-small);background:transparent;color:var(--deep-text);font-size:.82rem;font-weight:700;line-height:1.4}.guestbook-chat__announcement-bar-items button:hover{background:color-mix(in srgb,var(--guestbook-danger) 14%,transparent)}.guestbook-chat__announcement-bar-close{display:grid;place-items:center;flex:0 0 auto;width:2rem;height:2rem;padding:0;border:0;border-radius:var(--radius-small);background:transparent;color:var(--guestbook-danger)}.guestbook-chat__announcement-bar-close:hover{background:color-mix(in srgb,var(--guestbook-danger) 14%,transparent)}.guestbook-chat__sidebar{display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden;border-left:1px solid var(--guestbook-line);background:var(--guestbook-panel)}.guestbook-chat__sidebar-heading{display:none;align-items:center;justify-content:space-between;min-height:3.5rem;padding:0 var(--space-4);border-bottom:1px solid var(--guestbook-line)}.guestbook-chat__sidebar-heading button{display:grid;place-items:center;width:var(--control-size);height:var(--control-size);padding:0;border:0;border-radius:var(--radius-small);background:transparent;color:inherit}.guestbook-chat__panel-title{display:flex;align-items:center;gap:var(--space-2);color:var(--deep-text);font-size:.82rem;font-weight:700}.guestbook-chat__members{display:flex;flex-direction:column;flex:1;min-height:0}.guestbook-chat__member-list{min-height:0;overflow-y:auto;padding:var(--space-3) var(--space-2) var(--space-4)}.guestbook-chat__member-group+.guestbook-chat__member-group{margin-top:var(--space-4)}.guestbook-chat__member-group-title{display:flex;align-items:center;gap:var(--space-2);min-height:1.75rem;padding:0 var(--space-2) var(--space-1);color:var(--guestbook-muted);font-size:.76rem;font-weight:700}.guestbook-chat__member-group-title span{font-weight:500}.guestbook-chat__member-group-list{display:flex;flex-direction:column;gap:.125rem}.guestbook-chat__member{display:flex;align-items:center;gap:var(--space-2);min-height:var(--control-size);padding:var(--space-1) var(--space-2);border-radius:var(--radius-small);color:var(--deep-text);font-size:.8rem;text-decoration:none}.guestbook-chat__member:hover{background:var(--btn-plain-bg-hover)}.guestbook-chat__member-identity{display:flex;align-items:center;gap:var(--space-1);min-width:0}.guestbook-chat__member-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.guestbook-chat__member[href] .guestbook-chat__member-name{color:var(--guestbook-link)}.guestbook-chat__member-identity small{flex:0 0 auto;padding:.0625rem var(--space-1);border:1px solid var(--guestbook-line);border-radius:var(--radius-small);color:var(--guestbook-muted);font-size:.62rem;font-weight:600;line-height:1.35}.guestbook-chat__member-avatar{position:relative;display:grid;place-items:center;flex:0 0 auto;width:2rem;height:2rem;overflow:hidden;border:1px solid var(--guestbook-line);border-radius:var(--radius-full);color:var(--guestbook-muted);font-size:.62rem;font-weight:700}.guestbook-chat__member-avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.guestbook-chat__sidebar-overlay{display:none}.guestbook-chat__messages,.guestbook-chat__loading{position:relative;min-height:0;overflow-y:auto;padding:var(--space-3) clamp(var(--space-3),3vw,1.75rem) var(--space-6);scrollbar-gutter:stable}.guestbook-chat__workspace.has-announcement-bar .guestbook-chat__messages,.guestbook-chat__workspace.has-announcement-bar .guestbook-chat__loading{padding-top:4.75rem}.guestbook-chat__history{display:flex;justify-content:center;min-height:var(--control-size);margin-bottom:var(--space-3);color:var(--guestbook-muted);font-size:.75rem}.guestbook-chat__history button{display:inline-flex;align-items:center;gap:var(--space-1);min-height:var(--control-size);padding:0 var(--space-3);border:0;background:transparent;color:var(--guestbook-muted)}.guestbook-chat__history button:hover{color:var(--deep-text)}.guestbook-chat__history span{align-self:center}.guestbook-chat__date{display:flex;align-items:center;justify-content:center;margin:var(--space-4) 0;color:var(--guestbook-muted);font-size:.72rem}.guestbook-chat__date span{padding:var(--space-1) var(--space-2);border:1px solid var(--guestbook-line);border-radius:var(--radius-full);background:var(--guestbook-panel)}.guestbook-chat__empty,.guestbook-chat__state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100%;padding:var(--space-8);color:var(--guestbook-muted);text-align:center}.guestbook-chat__empty h3,.guestbook-chat__state h3{margin:var(--space-4) 0 var(--space-1);color:var(--deep-text);font-size:1rem}.guestbook-chat__empty p,.guestbook-chat__state p{margin:0;font-size:.85rem;line-height:1.6}.guestbook-chat__empty-mark{width:3.25rem;height:3.25rem}.guestbook-chat__state>button{display:inline-flex;align-items:center;gap:var(--space-1);min-height:var(--control-size);margin-top:var(--space-4);padding:0 var(--space-4);border:1px solid var(--deep-text);border-radius:var(--radius-medium);background:var(--deep-text);color:var(--page-bg)}.guestbook-chat__new-messages{position:absolute;left:50%;top:calc((var(--control-size) + var(--space-2)) * -1);display:inline-flex;align-items:center;justify-content:center;z-index:4;width:var(--control-size);height:var(--control-size);min-height:var(--control-size);padding:0;border:1px solid var(--guestbook-line);border-radius:var(--radius-full);background:var(--guestbook-panel);color:var(--primary);transform:translate(-50%)}.guestbook-chat__composer-area{position:relative;border-top:0;background:var(--guestbook-panel);z-index:3}.guestbook-chat__sync-error{gap:var(--space-2);min-height:2rem;padding:var(--space-1) var(--space-4) 0;color:var(--guestbook-danger);font-size:.72rem}.guestbook-chat__sync-error span{flex:1}.guestbook-chat__sync-error button{min-height:var(--control-size);border:0;background:transparent;color:inherit;font-weight:700}.guestbook-chat__loading{display:flex;flex-direction:column;gap:var(--space-4);overflow:hidden}.guestbook-chat__skeleton{display:flex;align-items:flex-start;gap:var(--space-3)}.guestbook-chat__skeleton.is-admin{flex-direction:row-reverse}.guestbook-chat__skeleton-avatar,.guestbook-chat__skeleton-name,.guestbook-chat__skeleton-bubble,.guestbook-chat__skeleton-meta{background:var(--guestbook-bubble);animation:guestbook-skeleton 1.4s ease-in-out infinite}.guestbook-chat__skeleton-avatar{flex:0 0 auto;width:var(--guestbook-avatar-size);height:var(--guestbook-avatar-size);border-radius:var(--radius-full)}.guestbook-chat__skeleton-copy{display:flex;flex-direction:column;gap:var(--space-2);width:min(64%,35rem)}.guestbook-chat__skeleton.is-admin .guestbook-chat__skeleton-copy{align-items:flex-end}.guestbook-chat__skeleton-name{width:7rem;height:.8rem;border-radius:var(--radius-small)}.guestbook-chat__skeleton-bubble{width:100%;height:4.5rem;border-radius:var(--radius-medium)}.guestbook-chat__skeleton-meta{width:10rem;height:.65rem;border-radius:var(--radius-small)}.guestbook-chat__fallback-action{background:var(--guestbook-bubble);animation:guestbook-skeleton 1.4s ease-in-out infinite}.guestbook-chat__fallback-textarea,.guestbook-chat__fallback-tool,.guestbook-chat__fallback-count,.guestbook-chat__fallback-login,.guestbook-chat__fallback-send,.guestbook-chat__fallback-panel-title,.guestbook-chat__fallback-member-list span,.guestbook-chat__fallback-member-list i{background:var(--guestbook-editor-line);animation:guestbook-skeleton 1.4s ease-in-out infinite}.guestbook-chat__fallback-action{flex:0 0 auto;display:none;width:var(--control-size);height:var(--control-size);border-radius:var(--radius-medium)}.guestbook-chat__fallback-composer{padding:var(--space-3) var(--space-4) var(--space-2);border-top:0;background:var(--guestbook-panel)}.guestbook-chat__fallback-editor{overflow:hidden;border:2px solid var(--guestbook-editor-line);border-radius:var(--radius-medium);background:transparent}.guestbook-chat__fallback-resize-handle{display:grid;place-items:center;height:var(--space-4)}.guestbook-chat__fallback-resize-handle:after{width:3rem;height:3px;border-radius:var(--radius-full);background:var(--guestbook-editor-line);content:""}.guestbook-chat__fallback-textarea{min-height:6rem;margin:var(--space-3);border-radius:var(--radius-small);opacity:.48}.guestbook-chat__fallback-toolbar,.guestbook-chat__fallback-toolbar>div{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2)}.guestbook-chat__fallback-toolbar{min-height:3.5rem;padding:var(--space-1) var(--space-2);border-top:0}.guestbook-chat__fallback-tool,.guestbook-chat__fallback-login,.guestbook-chat__fallback-send{display:block;width:var(--control-size);height:var(--control-size);border-radius:var(--radius-medium)}.guestbook-chat__fallback-count{display:block;width:2.5rem;height:.65rem;border-radius:var(--radius-small)}.guestbook-chat__fallback-login,.guestbook-chat__fallback-send{width:4.5rem}.guestbook-chat__fallback-sidebar{padding:var(--space-4)}.guestbook-chat__fallback-panel-title{width:42%;height:.8rem;border-radius:var(--radius-small)}.guestbook-chat__fallback-member-list{display:flex;flex-direction:column;flex:1;gap:var(--space-3);margin-top:var(--space-5)}.guestbook-chat__fallback-member-list>div{display:flex;align-items:center;gap:var(--space-2)}.guestbook-chat__fallback-member-list span{width:2rem;height:2rem;border-radius:var(--radius-full)}.guestbook-chat__fallback-member-list i{width:58%;height:.7rem;border-radius:var(--radius-small)}.guestbook-message{display:flex;flex-direction:column;align-items:flex-start;width:100%;margin-bottom:var(--space-5)}.guestbook-message.is-admin{align-items:flex-end}.guestbook-message__main{display:flex;align-items:flex-start;gap:var(--space-3);width:100%}.guestbook-message.is-admin .guestbook-message__main{flex-direction:row-reverse}.guestbook-message__avatar{position:relative;display:grid;place-items:center;flex:0 0 auto;width:var(--guestbook-avatar-size);height:var(--guestbook-avatar-size);overflow:hidden;border:1px solid var(--guestbook-line);border-radius:var(--radius-full);background:var(--guestbook-panel);color:var(--guestbook-muted);font-size:.7rem;font-weight:700;text-decoration:none}.guestbook-message__avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.guestbook-message__column{display:flex;flex-direction:column;align-items:flex-start;min-width:0;max-width:min(78%,45rem)}.guestbook-message.is-admin .guestbook-message__column{align-items:flex-end}.guestbook-message__heading,.guestbook-message__meta,.guestbook-message__failure{display:flex;align-items:center;flex-wrap:wrap}.guestbook-message__heading{gap:var(--space-1);min-height:1.375rem;margin-bottom:var(--space-1);color:var(--guestbook-muted);font-size:.76rem}.guestbook-message.is-admin .guestbook-message__heading,.guestbook-message.is-admin .guestbook-message__meta{justify-content:flex-end}.guestbook-message.is-admin .guestbook-message__time{order:1}.guestbook-message.is-admin .guestbook-message__badge{order:2}.guestbook-message.is-admin .guestbook-message__author{order:3}.guestbook-message__heading strong{color:var(--deep-text);font-size:.88rem}.guestbook-message__author-link{color:var(--guestbook-link);font-size:.88rem;font-weight:700;text-decoration:none}.guestbook-message__author-link:hover{text-decoration:underline;text-underline-offset:var(--space-1)}.guestbook-message__badge{padding:.1rem var(--space-1);border:1px solid var(--guestbook-line);border-radius:var(--radius-small);color:var(--guestbook-muted);font-size:.65rem;font-weight:650}.guestbook-message__badge--admin{border-color:var(--guestbook-admin-bubble);background:var(--guestbook-admin-bubble);color:var(--guestbook-admin-text)}.guestbook-message__badge--waiting{border-color:var(--guestbook-waiting);background:transparent;color:var(--guestbook-waiting)}.guestbook-message__bubble-row{position:relative;display:flex;align-items:flex-end;gap:var(--space-1);max-width:100%}.guestbook-message.is-admin .guestbook-message__bubble-row{flex-direction:row-reverse;align-items:flex-end}.guestbook-message__bubble{position:relative;min-width:3rem;max-width:100%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-medium);background:var(--guestbook-bubble);color:var(--guestbook-bubble-text);line-height:1.65}.guestbook-message.is-admin .guestbook-message__bubble{border-radius:var(--radius-medium);background:var(--guestbook-bubble);color:var(--guestbook-bubble-text)}.guestbook-message__body,.guestbook-message__body p{margin:0;overflow-wrap:anywhere;font-size:.95rem}.guestbook-message__body p+p{margin-top:var(--space-2)}.guestbook-message__body a{color:inherit;text-decoration:underline;text-underline-offset:var(--space-1)}.guestbook-message__body img{max-width:100%}.guestbook-message__body img[title=emoji]{display:inline-block;width:1.75em;height:1.75em;object-fit:contain;vertical-align:middle}.guestbook-message__body img:not([title=emoji]){display:block;width:auto;max-height:22rem;margin-top:var(--space-2);border:0;border-radius:var(--radius-small);object-fit:contain}.guestbook-message__quote{position:relative;display:grid;grid-template-columns:1.75rem minmax(0,1fr);align-items:center;gap:var(--space-2);width:min(calc(78% + var(--guestbook-avatar-size) + var(--space-3)),42rem);min-height:var(--control-size);margin:0 0 var(--space-2) calc(var(--guestbook-avatar-size) / 2);padding:var(--space-1) calc(var(--space-3) + .75rem);border:0;background:transparent;color:var(--guestbook-muted);text-align:left;cursor:pointer;transition:color .16s ease,background-color .16s ease}.guestbook-message.is-admin .guestbook-message__quote{grid-template-columns:minmax(0,1fr) 1.75rem;margin-right:calc(var(--guestbook-avatar-size) / 2);margin-left:0;text-align:right}.guestbook-message.is-admin .guestbook-message__quote-avatar{grid-column:2}.guestbook-message.is-admin .guestbook-message__quote-copy{grid-column:1;grid-row:1}.guestbook-message__quote:before,.guestbook-message__quote:after{position:absolute;left:0;content:"";pointer-events:none}.guestbook-message__quote:before{top:50%;width:.75rem;border-top:1px solid var(--guestbook-line)}.guestbook-message__quote:after{top:50%;height:calc(50% + var(--space-3));border-left:1px solid var(--guestbook-line)}.guestbook-message.is-admin .guestbook-message__quote:before,.guestbook-message.is-admin .guestbook-message__quote:after{right:0;left:auto}.guestbook-message__quote:hover,.guestbook-message__quote:focus-visible{background:color-mix(in srgb,var(--guestbook-panel) 72%,transparent);color:var(--deep-text)}.guestbook-message__quote:focus-visible{outline:2px solid color-mix(in srgb,var(--guestbook-focus) 72%,transparent);outline-offset:2px}.guestbook-message__quote-avatar{position:relative;display:grid;place-items:center;width:1.75rem;height:1.75rem;overflow:hidden;border:1px solid var(--guestbook-line);border-radius:var(--radius-full);background:var(--guestbook-panel);color:var(--guestbook-muted);font-size:.56rem;font-weight:700}.guestbook-message__quote-avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.guestbook-message__quote-copy{display:block;min-width:0}.guestbook-message__quote-copy strong,.guestbook-message__quote-copy small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.guestbook-message__quote-copy strong{font-size:.75rem;font-weight:700}.guestbook-message__quote-copy small{margin-top:.125rem;font-size:.72rem;font-weight:400}.guestbook-message__quote-emoji{display:inline-block;width:1.35em;height:1.35em;margin:0 .125em;object-fit:contain;vertical-align:-.28em}.guestbook-message__tools{display:flex;align-items:center;gap:var(--space-1);opacity:0;transition:opacity .16s ease}.guestbook-message__tools button{display:grid;place-items:center;width:2rem;height:2rem;padding:0;border:1px solid var(--guestbook-line);border-radius:var(--radius-full);background:var(--guestbook-panel);color:var(--guestbook-muted);transition:border-color .16s ease,color .16s ease}.guestbook-message:hover .guestbook-message__tools,.guestbook-message__tools:focus-within{opacity:1}.guestbook-message__tools button:hover:not(:disabled){border-color:var(--guestbook-muted);color:var(--primary)}.guestbook-message__edit-input{display:block;width:min(32rem,68vw);min-width:12rem;min-height:6rem;resize:vertical;padding:var(--space-2);border:1px solid currentColor;border-radius:var(--radius-small);background:transparent;color:inherit;font:inherit;line-height:1.6}.guestbook-message__edit-actions{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-1);margin-top:var(--space-2)}.guestbook-message__edit-actions>span{margin-right:auto;font-size:.7rem;opacity:.72}.guestbook-message__edit-actions 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