/* Scoped to the assistant. The original interface remains the no-JS fallback. */
body.assistant-chat{background:#fff;overflow:hidden;color:#202828;--rhk:#087f82;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.assistant-chat button,.assistant-chat select{font:inherit}.assistant-chat button:focus-visible,.assistant-chat a:focus-visible,.assistant-chat summary:focus-visible{outline:2px solid #087f82;outline-offset:3px}
.assistant-chat .assistant-shell{height:var(--assistant-viewport-height,100dvh);min-height:0;overflow:hidden}
.assistant-chat .assistant-topbar,.assistant-chat .assistant-sidebar{display:none}
.assistant-chat .chat-header{height:62px;min-height:62px;display:flex;align-items:center;gap:12px;padding:0 20px;background:#fff;border-bottom:1px solid #f1f2f2}
.assistant-chat .chat-title{font-size:16px;font-weight:650;flex:1;letter-spacing:.01em}.assistant-chat .chat-icon{width:40px;height:40px;border:0;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:transparent;color:#536060;cursor:pointer;flex-shrink:0}.assistant-chat .chat-icon:hover{background:#f1f5f4}.assistant-chat .chat-icon:disabled{opacity:.4;cursor:wait}
.assistant-chat .assistant-layout,.assistant-chat.assistant-embedded .assistant-layout{padding:0;margin:0;width:100%;height:auto;display:flex;flex:1;min-height:0;gap:0}
.assistant-chat .chat-panel{border:0;border-radius:0;box-shadow:none;background:#fff;min-height:0;flex:1;width:100%;height:100%;overflow:hidden}
.assistant-chat .chat-log{width:100%;flex:1;min-height:0;padding:28px max(22px,calc((100% - 760px)/2));overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}
.assistant-chat .message{max-width:100%;margin-bottom:28px;gap:0}.assistant-chat .message-avatar,.assistant-chat .message-name{display:none}.assistant-chat .message-body{width:100%;max-width:100%;min-width:0}.assistant-chat .message-content{border:0;border-radius:0;box-shadow:none;background:transparent;padding:0;font-size:15px;line-height:1.85;color:#242c2c;overflow-wrap:anywhere}
.assistant-chat .user-message .message-body{width:auto;max-width:85%}.assistant-chat .user-message .message-content{background:#f0f3f2;border:0;border-radius:20px;padding:11px 17px;color:#263434}
.assistant-chat .welcome-message{display:none}.assistant-chat .chat-is-empty{display:flex;align-items:center;justify-content:center}.assistant-chat .chat-is-empty .welcome-message{display:block;width:100%;margin:0;text-align:center}.assistant-chat .welcome-message .message-content{white-space:normal;font-size:15px;line-height:1.8;color:#84918e}.assistant-chat .welcome-message .message-content strong{display:block;font-size:28px;font-weight:600;color:#233432;letter-spacing:-.03em;margin-bottom:12px}
.assistant-chat #assistantStatus{flex-shrink:0;margin:8px auto 0;max-width:760px;width:calc(100% - 32px);font-size:12px;line-height:1.6;padding:9px 12px}.assistant-chat #assistantStatus:not([data-visible="true"]){position:absolute!important;width:1px!important;height:1px!important;overflow:hidden!important;clip-path:inset(50%);padding:0!important;margin:0!important}
.assistant-chat .assistant-composer{flex-shrink:0;position:relative;bottom:auto;display:grid;grid-template-columns:40px minmax(0,1fr) 40px;gap:3px 7px;border:1px solid #dce3e0;border-radius:24px;background:#fff;box-shadow:0 3px 16px #17363108;margin:0 auto;padding:10px 12px;width:calc(100% - 32px);max-width:760px}
.assistant-chat .assistant-composer textarea{grid-column:1/-1;grid-row:2;font-size:16px;line-height:1.6;min-height:44px;max-height:150px;padding:6px 5px;color:#26312e}.assistant-chat .assistant-composer textarea::placeholder{color:#9aa39f}
.assistant-chat #chatAddBtn{grid-row:3;grid-column:1}.assistant-chat .chat-mode{grid-row:3;grid-column:2;justify-self:start;align-self:center;border:0;background:#eef5f3;border-radius:20px;padding:6px 10px;font-size:12px;color:#35746c;cursor:pointer}.assistant-chat .chat-mode[hidden]{display:none}
.assistant-chat .assistant-composer #sendBtn{grid-row:3;grid-column:3;min-width:38px;width:38px;height:38px;border-radius:50%;background:#078185;font-size:0;position:relative}.assistant-chat .assistant-composer #sendBtn::before{content:'';width:9px;height:9px;border-top:2px solid #fff;border-left:2px solid #fff;transform:rotate(45deg);position:absolute;top:12px;left:14px}.assistant-chat .assistant-composer #sendBtn::after{content:'';width:2px;height:15px;background:#fff;position:absolute;left:18px;top:12px}.assistant-chat .assistant-composer #sendBtn:disabled{background:#bad0cd}.assistant-chat .assistant-composer #sendBtn[data-waiting="true"]::before{width:15px;height:15px;left:11px;top:11px;border:2px solid #ffffff55;border-top-color:#fff;border-radius:50%;animation:chat-spin 1s linear infinite}.assistant-chat .assistant-composer #sendBtn[data-waiting="true"]::after{display:none}
.assistant-chat .chat-footnote{flex-shrink:0;font-size:10px;color:#a4ada8;text-align:center;padding:8px 0 max(10px,env(safe-area-inset-bottom))}
.assistant-chat .chat-assets{grid-column:1/-1;grid-row:1;display:flex;gap:8px;min-width:0;overflow-x:auto;max-height:100px}.assistant-chat .chat-assets[hidden]{display:none}.assistant-chat .bxt-strip{width:auto;min-width:0;flex-shrink:0;max-height:none}.assistant-chat .bxt-thumb{padding:4px 7px;background:#f6f9f7;border-color:#dde7e3;border-radius:12px;gap:7px}.assistant-chat .bxt-thumb img{width:42px;height:42px;border-radius:6px}.assistant-chat .bxt-thumb span{font-size:11px;max-width:90px}.assistant-chat .bxt-thumb button{font-size:11px;background:none;border:0;color:#6b7c76;cursor:pointer}
.assistant-chat .attachment-card{display:grid;grid-template-columns:28px minmax(75px,160px) auto;flex-shrink:0;max-width:100%;border:1px solid #e0e7e4;border-radius:12px;background:#f8faf9;padding:7px 8px;gap:6px}.assistant-chat .attachment-card[hidden]{display:none}.assistant-chat .attachment-icon{width:28px;height:28px;font-size:12px}.assistant-chat #attachmentName{font-size:12px;letter-spacing:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.assistant-chat #attachmentMeta{font-size:10px;color:#99a6a0}.assistant-chat #attachmentState{font-size:10px}.assistant-chat .attachment-card[data-state="ready"] #attachmentState{display:none}.assistant-chat .attachment-card[data-state="error"]{max-height:95px;overflow:auto}.assistant-chat #attachmentRemove{font-size:11px;border:0;background:transparent;padding:5px;color:#77887e}
.assistant-chat .chat-feedback{max-width:760px;width:calc(100% - 32px);margin:0 auto 9px;flex-shrink:0;border:1px solid #f0dad3;border-radius:12px;background:#fff9f6;padding:8px 12px;font-size:12px;color:#995645}.assistant-chat .chat-feedback[hidden]{display:none}.assistant-chat .chat-feedback summary{cursor:pointer}.assistant-chat .chat-feedback-body{max-height:110px;overflow:auto;overflow-wrap:anywhere}.assistant-chat .chat-feedback .bxt-notice{margin-top:7px;font-size:12px;line-height:1.6}
.assistant-chat .bxt-result{max-height:540px;border-radius:16px}.assistant-chat .bxt-request{font-size:14px;color:#6a7771;line-height:1.6}.assistant-chat .bxt-actions{gap:6px;font-size:11px}.assistant-chat .bxt-actions button,.assistant-chat .bxt-actions a{border:0;background:#f5f7f6;border-radius:8px;padding:6px 9px;color:#557065}
.assistant-chat .message-content strong{font-weight:650}.assistant-chat .message-content code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.9em;background:#f4f6f5;border-radius:4px;padding:1px 4px}.assistant-chat .message-content pre{max-width:100%;overflow-x:auto;white-space:pre;line-height:1.6;background:#f4f6f5;border-radius:12px;padding:12px;margin:10px 0}.assistant-chat .message-content pre code{padding:0;background:none}
.assistant-chat .tool-suggestions{max-width:760px;margin:0 auto;width:calc(100% - 32px);font-size:11px}
.chat-tools,.chat-drawer{color:#263a33;background:#fff;border:1px solid #e4eae6;padding:18px;box-shadow:0 18px 70px #20372c20;max-height:calc(var(--chat-screen-height,100dvh) - 40px);overflow-y:auto;overscroll-behavior:contain}.chat-tools::backdrop,.chat-drawer::backdrop{background:#14251d33}.chat-tools{border-radius:22px;width:min(420px,calc(100% - 24px));margin:auto}.chat-drawer{border:0;border-right:1px solid #e6eae7;border-radius:0 20px 20px 0;width:min(320px,87vw);height:var(--chat-screen-height,100dvh);max-height:var(--chat-screen-height,100dvh);margin:0 auto 0 0;padding:20px;inset:0 auto 0 0}.chat-dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px;gap:10px;font-size:15px}
.assistant-chat .chat-drawer .new-chat{display:block;width:100%;font-size:14px;text-align:left;padding:12px 14px;border-radius:12px;box-shadow:none;background:#edf5f1;color:#24564c}.chat-section-title{font-size:11px;font-weight:500;color:#93a298;margin:25px 9px 10px}.chat-history{display:flex;flex-direction:column;gap:4px;max-height:42vh;overflow:auto}.chat-history-item{border:0;background:transparent;text-align:left;padding:11px 10px;border-radius:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#4a5c53;font-size:13px;cursor:pointer}.chat-history-item:hover,.chat-history-item[aria-current="true"]{background:#f0f5f2}.chat-history-item:disabled{opacity:.5}.chat-empty-history{font-size:12px;color:#97a49b;padding:0 10px}.chat-history-select{display:none}
.chat-details{border-top:1px solid #edf0ee;padding:14px 2px;margin-top:14px;font-size:12px;color:#708278}.chat-details summary{cursor:pointer}.assistant-chat .chat-drawer .sidebar-section{display:flex;flex-direction:column;max-width:100%;margin:10px 0 0;overflow:visible;gap:3px}.assistant-chat .chat-drawer .sidebar-section>button{white-space:normal;font-size:12px;background:transparent;padding:10px;text-align:left;width:100%}.assistant-chat .chat-drawer .tool-links{display:grid;grid-template-columns:1fr}.chat-links{display:flex;flex-direction:column;gap:12px;border-top:1px solid #edf0ee;margin-top:12px;padding:16px 4px}.chat-links a{color:#647d70;text-decoration:none;font-size:12px}
.assistant-chat .chat-tools .chat-generate{display:block;width:100%;margin-top:16px;padding:12px 14px;text-align:left;border:1px solid #dfebe4;border-radius:12px;background:#f3f8f5;color:#365b48;font-size:14px;cursor:pointer}
.assistant-chat .chat-tools .composer-upload-row{display:flex;flex-wrap:wrap;gap:8px;border-bottom:1px solid #eef1ef;padding:0 0 16px}.assistant-chat .chat-tools .composer-upload-row>span{width:100%;font-size:11px;line-height:1.5;color:#91a295}.assistant-chat .chat-tools .composer-upload-row button,.assistant-chat .chat-tools .composer-upload-row a{border:1px solid #dfebe4;border-radius:10px;padding:10px 12px;font-size:13px;background:#f8fbf9;color:#365b48;cursor:pointer;text-decoration:none}.assistant-chat .chat-tools button:disabled{opacity:.5;cursor:default}.assistant-chat .chat-tools .bxt-toolbar{border:0;padding:16px 0 0;margin:0;background:transparent;gap:9px;font-size:13px;display:flex;flex-wrap:wrap}.assistant-chat .chat-tools .bxt-toolbar select{width:100%;max-width:none;border-color:#dfebe4;padding:10px;background:#fafcfb}.assistant-chat .chat-tools .bxt-toolbar button{padding:10px;border-color:#dfebe4;border-radius:10px}.assistant-chat .chat-tools .bxt-region-controls{width:100%;flex-wrap:wrap}.assistant-chat .chat-tools .attachment-prompts{margin-top:18px;gap:7px;display:flex;flex-wrap:wrap;font-size:12px}.assistant-chat .chat-tools .attachment-prompts[hidden]{display:none}.assistant-chat .chat-tools .attachment-prompts button{padding:8px 10px;border:1px solid #dfebe4;border-radius:9px;background:#f8fbf9;color:#426c58}.assistant-chat .chat-tools .attachment-prompts>span{width:100%;font-size:11px;color:#93a397}.assistant-chat .chat-help .privacy-note{display:block;font-size:11px;line-height:1.8;margin:10px 0;color:#8a9a90;padding:0}.chat-help>p{font-size:11px;line-height:1.8}
@keyframes chat-spin{to{transform:rotate(360deg)}}
@media(max-width:600px){.assistant-chat .chat-header{height:52px;min-height:52px;padding:0 12px}.assistant-chat .chat-title{font-size:14px}.assistant-chat .chat-log{padding:24px 20px 18px}.assistant-chat .message-content{font-size:15px}.assistant-chat .message{margin-bottom:24px}.assistant-chat .welcome-message .message-content strong{font-size:25px}.assistant-chat .welcome-message .message-content{font-size:13px}.assistant-chat .assistant-composer{width:calc(100% - 24px);padding:8px 10px;border-radius:23px}.assistant-chat .chat-footnote{padding-top:7px}.chat-tools{margin:auto auto max(8px,env(safe-area-inset-bottom));max-height:calc(var(--chat-screen-height,100dvh) - 28px)}.assistant-chat .chat-feedback{width:calc(100% - 24px)}.assistant-chat .bxt-result{max-height:450px}}
@media(prefers-reduced-motion:reduce){.assistant-chat .assistant-composer #sendBtn[data-waiting="true"]::before{animation:none}}

/* PPT results stay inside the existing conversation and plus menu. */
.ppt-tool-row,.ppt-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.ppt-tool-row{margin:12px 0}.ppt-card{margin:14px 0;padding:16px;border:1px solid #d9e7e7;border-radius:16px;background:#f6faf9;max-width:100%;overflow-wrap:anywhere}
.ppt-card-title{display:block;font-size:16px;line-height:1.5;color:#17474a}.ppt-meta{font-size:13px;line-height:1.65;color:#6d8587;margin:6px 0 12px}
.ppt-button,.ppt-download{font:inherit;font-size:14px;border:1px solid #c8dddd;border-radius:10px;padding:8px 12px;color:#24686a;background:white;cursor:pointer;text-decoration:none;line-height:1.4}
.ppt-button:disabled{opacity:.5;cursor:wait}.ppt-download{background:#087f84;color:#fff;border-color:#087f84}.assistant-chat .ppt-mode{grid-row:3;grid-column:2;justify-self:start;align-self:center;font-size:12px;padding:4px 10px;margin:0}.ppt-mode[hidden]{display:none}
.ppt-outline{margin-top:12px;font-size:14px}.ppt-outline summary{cursor:pointer;color:#557779}.ppt-outline h3{font-size:15px;margin:18px 0 8px}.ppt-outline ul{padding-left:20px;margin:0;line-height:1.8}.ppt-library{width:min(640px,calc(100vw - 32px))}.ppt-files{overflow-wrap:anywhere}

/* Ordered multi-image chips fit the existing horizontal attachment strip. */
.attachment-extras{display:contents}.attachment-extras[hidden]{display:none}
.assistant-chat .attachment-card[data-kind="image"]{grid-template-columns:44px minmax(70px,130px) auto;min-width:195px}
.assistant-chat .attachment-card[data-kind="image"] .attachment-icon{width:44px;height:44px;border-radius:8px;overflow:hidden}
.assistant-chat .attachment-icon img{width:100%;height:100%;object-fit:cover}
.assistant-chat .attachment-extras .attachment-info strong{font-size:12px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.assistant-chat .attachment-extras .attachment-info span{font-size:10px;color:#8c9f9a}
.assistant-chat .attachment-extras .attachment-card[data-state="ready"] .attachment-info span:last-child{display:none}
.assistant-chat .attachment-extras .attachment-remove{font-size:11px;border:0;background:transparent;padding:5px;color:#77887e}
.assistant-chat .bxt-thumb .bxt-source-remove,.assistant-chat .attachment-card :is(.attachment-remove,#attachmentRemove){display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:28px;height:28px;border:1px solid #d9e4de;border-radius:50%;background:#fff;color:#536c60;font-size:20px;line-height:1;cursor:pointer;padding:0}
.assistant-chat .bxt-thumb .bxt-source-remove:hover,.assistant-chat .attachment-card .attachment-remove:hover{background:#fff2ef;border-color:#e7b8aa;color:#a74c36}
.assistant-chat .bxt-thumb .bxt-source-remove:focus-visible,.assistant-chat .attachment-card .attachment-remove:focus-visible{outline:2px solid #087f80;outline-offset:2px}
.assistant-chat .attachment-card[data-state="error"] .attachment-info span:last-child{display:block;color:#b13d2f}

/* Keep history titles readable when the list reaches its scroll limit. */
.assistant-chat .chat-history-item {
  box-sizing: border-box;
  flex: 0 0 auto;
  min-height: 44px;
  line-height: 1.5;
}


/* The attachment sheet contains upload choices only. */
.chat-legacy-controls[hidden]{display:none!important}
.assistant-chat .chat-upload-menu{width:min(440px,calc(100vw - 28px));padding:20px;border:1px solid #e0e8e3;border-radius:22px;box-sizing:border-box}
.chat-upload-menu .chat-dialog-head{margin-bottom:20px}
.chat-upload-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:8px}
.assistant-chat .chat-upload-choice{display:flex;flex-direction:row;align-items:center;gap:13px;min-width:0;padding:16px 14px;border:1px solid #e0e9e3;border-radius:14px;background:#fafcf9;color:#234e42;text-align:left;cursor:pointer;transition:background .15s,border-color .15s}
.assistant-chat .chat-upload-choice:hover{background:#f0f6f0;border-color:#a9c9b5}
.chat-upload-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:#edf4ed;color:#326551}
.chat-upload-copy{display:grid;gap:5px;min-width:0}
.chat-upload-copy strong{font-size:14px;font-weight:600;line-height:1.4}
.chat-upload-copy small{font-size:11px;line-height:1.4;color:#899a8e;overflow-wrap:anywhere}
.chat-upload-hint{margin:17px 0 0;text-align:center;font-size:11px;line-height:1.65;color:#8c9c92}
.assistant-chat .attachment-card[data-kind="cad"][data-state="ready"] #attachmentState,.assistant-chat .attachment-extras .attachment-card[data-kind="cad"][data-state="ready"] .attachment-info span:last-child{display:block;color:#8b693e;white-space:normal}
.assistant-chat .attachment-card[data-kind="cad"]{max-width:310px;max-height:95px;overflow:auto}
@media(max-width:600px){.assistant-chat .chat-upload-menu{padding:18px;border-radius:20px;margin:auto auto max(10px,env(safe-area-inset-bottom))}.chat-upload-grid{gap:8px}.assistant-chat .chat-upload-choice{padding:14px;gap:10px}}
@media(prefers-reduced-motion:reduce){.assistant-chat .chat-upload-choice{transition:none}}

.assistant-chat .attachment-card[data-notice="true"][data-state="ready"] #attachmentState,.assistant-chat .attachment-extras .attachment-card[data-notice="true"][data-state="ready"] .attachment-info span:last-child{display:block;color:#8b693e;white-space:normal}