.chat-modal{display:flex;visibility:hidden;opacity:0;pointer-events:none;position:fixed;z-index:1000;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,0.48);align-items:flex-end;justify-content:center;transition:opacity 0.34s ease,visibility 0.34s}
.chat-modal.active{visibility:visible;opacity:1;pointer-events:auto}
.chat-modal .modal-content{background:white;max-width:480px;width:100%;height:85vh;padding:0;display:flex;flex-direction:column;touch-action:manipulation;border-radius:24px 24px 0 0;box-shadow:0 -8px 32px rgba(0,0,0,0.08);transform:translateY(28px);opacity:0;transition:transform 0.46s cubic-bezier(0.22,1,0.36,1),opacity 0.36s ease}
.chat-modal.active .modal-content{transform:translateY(0);opacity:1}
.chat-container{display:flex;flex-direction:column;height:100%;overflow:hidden}
.chat-header{padding:14px 16px;border-bottom:1px solid var(--border-light);display:flex;justify-content:space-between;align-items:center;background:rgba(255,255,255,0.92);flex-shrink:0}
.chat-header-left{display:flex;align-items:center;gap:10px}
.chat-header-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;display:block}
.chat-header-title{font-size:17px;font-weight:600;color:var(--primary)}
.chat-body{flex:1;min-height:0;display:flex;flex-direction:column}
.chat-sidebar{display:none}
.chat-main{flex:1;min-height:0;display:flex;flex-direction:column}
.chat-messages-wrap{position:relative;flex:1;min-height:0;display:flex;flex-direction:column}
.chat-messages{flex:1;overflow-y:auto;padding:20px 16px 54px;background:#FBFBFD;-webkit-overflow-scrolling:touch;min-height:0}
.chat-messages.is-empty{display:flex;align-items:center;justify-content:center;padding:0 16px 54px;overflow:hidden}
.chat-empty{flex:1;align-self:stretch;width:100%;min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 28px;box-sizing:border-box;background:#FBFBFD}
.chat-empty .empty-icon{margin-bottom:12px;opacity:0.42;width:48px;height:48px}
.chat-empty .empty-icon .ui-icon{width:48px;height:48px}
.chat-cap-label{margin:0 0 4px;font-size:18px;font-weight:600;color:var(--text-secondary);letter-spacing:0.02em}
.chat-cap-list{list-style:none;padding:0;margin:14px 0 0;max-width:300px;text-align:left}
.chat-cap-list li{position:relative;padding:5px 0 5px 14px;font-size:13px;line-height:1.45;color:var(--text-secondary)}
.chat-cap-list li::before{content:'';position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:rgba(0,122,255,0.32)}
.chat-message{margin-bottom:14px;display:flex;width:100%}
.chat-message.user{justify-content:flex-end}
.chat-message.assistant{justify-content:flex-start}
.chat-bubble{max-width:100%;padding:12px 16px;border-radius:20px;font-size:14px;line-height:1.6;white-space:pre-wrap;word-break:break-word;display:inline-block;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji",sans-serif}
.chat-message.user .chat-bubble{background:rgba(0,122,255,0.82);color:#fff;border-bottom-right-radius:6px;box-shadow:0 2px 10px rgba(0,122,255,0.14)}
.chat-message.assistant .chat-bubble{background:#fff;color:var(--text-primary);border-bottom-left-radius:6px;box-shadow:0 2px 8px rgba(0,122,255,0.06);border:none}
.chat-bubble-group{display:flex;flex-direction:column;gap:8px;width:100%;max-width:80%}
.chat-message.assistant .chat-bubble-group.is-wide{max-width:min(100%,640px)}
.chat-message.user .chat-bubble-group{align-items:flex-end}
.chat-message.assistant .chat-bubble-group{align-items:flex-start}
.chat-image-grid{display:flex;flex-wrap:wrap;gap:8px}
.chat-image-item{width:120px;height:120px;border-radius:14px;overflow:hidden;background:rgba(0,122,255,0.06);cursor:pointer}
.chat-image-item img{width:100%;height:100%;object-fit:cover;display:block}
.chat-image-item.is-gone{cursor:default;display:flex;align-items:center;justify-content:center;background:var(--border-light,#f0f0f3)}
.chat-image-gone{font-size:11px;line-height:1.5;color:var(--text-tertiary,#8e8e93);text-align:center;padding:8px}
.chat-input-area{padding:10px 12px;border-top:1px solid rgba(0,0,0,0.06);background:rgba(255,255,255,0.94);padding-bottom:calc(10px + var(--safe-area-bottom));flex-shrink:0}
.chat-shortcuts{position:absolute;left:0;right:0;bottom:0;z-index:2;pointer-events:none;overflow:hidden;background:linear-gradient(to top,rgba(251,251,253,0.98) 55%,rgba(251,251,253,0) 100%)}
.chat-shortcuts-scroll{display:flex;gap:8px;padding:10px 12px 6px;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;touch-action:pan-x;pointer-events:auto;scrollbar-width:none;max-width:100%}
.chat-shortcuts-scroll::-webkit-scrollbar{display:none}
.chat-shortcut-chip{flex:0 0 auto;border:none;border-radius:999px;padding:7px 13px;font-size:13px;font-weight:600;font-family:inherit;color:var(--primary);background:rgba(255,255,255,0.78);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 2px 10px rgba(0,0,0,0.06),inset 0 0 0 0.5px rgba(0,122,255,0.14);cursor:pointer;white-space:nowrap;transition:transform 0.1s,box-shadow 0.15s,background 0.15s}
.chat-shortcut-chip:active{transform:scale(0.97);background:rgba(255,255,255,0.92);box-shadow:0 1px 6px rgba(0,0,0,0.05),inset 0 0 0 0.5px rgba(0,122,255,0.18)}
.chat-compose{display:flex;align-items:flex-end;gap:8px}
.chat-ai-note{margin:6px 0 -4px;text-align:center;font-size:10.5px;line-height:1.3;color:var(--text-tertiary);opacity:0.85;letter-spacing:0.01em}
.chat-ai-note a{color:inherit;text-decoration:none;border-bottom:1px solid currentColor;opacity:0.9}
.chat-compose-field{flex:1;min-width:0;display:flex;align-items:flex-end;gap:0;background:var(--border-light);border-radius:16px;padding:0 12px 0 0;min-height:44px;transition:background 0.2s,box-shadow 0.2s}
.chat-compose-field:focus-within{background:var(--card);box-shadow:0 0 0 3px rgba(0,122,255,0.1)}
.chat-mode-btn{position:relative;width:36px;align-self:stretch;min-height:44px;margin:0;border:none;border-radius:16px 0 0 16px;background:transparent;color:var(--text-tertiary);cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:color 0.18s,background 0.18s}
.chat-mode-btn::after{content:'';position:absolute;right:0;top:10px;bottom:10px;width:0.5px;background:rgba(0,0,0,0.08)}
.chat-mode-btn:active{background:rgba(0,122,255,0.06);color:var(--text-secondary)}
.chat-mode-icon{width:18px;height:18px;display:block;opacity:0.72;transition:opacity 0.18s,transform 0.18s}
.chat-mode-icon--to-single{display:none}
.chat-compose.is-multiline .chat-mode-icon--to-multi{display:none}
.chat-compose.is-multiline .chat-mode-icon--to-single{display:block;opacity:0.88}
.chat-compose.is-multiline .chat-mode-btn{color:var(--primary);background:rgba(0,122,255,0.05)}
.chat-compose.is-multiline .chat-mode-btn::after{background:rgba(0,122,255,0.12)}
.chat-compose-field textarea{flex:1;width:100%;box-sizing:border-box;padding:11px 0 11px 8px;border:none;background:transparent;resize:none;font-size:16px;font-family:inherit;line-height:1.45;min-height:44px;max-height:44px;overflow:hidden;outline:none}
.chat-compose.is-multiline{align-items:stretch;display:grid;grid-template-columns:1fr 48px;grid-template-rows:auto auto;column-gap:8px;row-gap:8px}
.chat-compose.is-multiline .chat-compose-field{grid-column:1;grid-row:1 / span 2;align-items:stretch;padding:0 12px 0 0;min-height:108px;border-radius:14px}
.chat-compose.is-multiline .chat-mode-btn{min-height:0;border-radius:14px 0 0 14px}
.chat-compose.is-multiline .chat-mode-btn::after{top:12px;bottom:12px}
.chat-compose.is-multiline .chat-compose-field textarea{min-height:88px;max-height:184px;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:11px 0 11px 8px}
.chat-compose.is-multiline .chat-camera-btn{grid-column:2;grid-row:1}
.chat-compose.is-multiline .chat-send-btn{grid-column:2;grid-row:2}
.chat-camera-btn,.chat-send-btn{position:relative;width:48px;height:44px;border:none;border-radius:14px;background:rgba(0,122,255,0.1);cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:background 0.15s,transform 0.1s;font-family:inherit;padding:0}
.chat-camera-btn:active,.chat-send-btn:active{transform:scale(0.97);background:rgba(0,122,255,0.18)}
.chat-send-btn{color:var(--primary);font-size:13px;font-weight:600;line-height:1}
.chat-send-btn:disabled{opacity:0.45}
.chat-camera-vf{position:absolute;inset:0;pointer-events:none;border-radius:14px}
.chat-camera-vf-c{position:absolute;width:10px;height:10px;border:1.5px solid rgba(0,122,255,0.28)}
.chat-camera-vf-c.tl{top:5px;left:5px;border-right:none;border-bottom:none;border-radius:3px 0 0 0}
.chat-camera-vf-c.tr{top:5px;right:5px;border-left:none;border-bottom:none;border-radius:0 3px 0 0}
.chat-camera-vf-c.bl{bottom:5px;left:5px;border-right:none;border-top:none;border-radius:0 0 0 3px}
.chat-camera-vf-c.br{bottom:5px;right:5px;border-left:none;border-top:none;border-radius:0 0 3px 0}
.chat-camera-icon{position:relative;z-index:1;display:flex;align-items:center;justify-content:center}
.chat-camera-icon .ui-icon{width:20px;height:20px;color:var(--primary)}
.chat-sidebar-new{display:flex;align-items:center;justify-content:center;gap:6px;margin:12px 12px 8px;padding:10px 12px;border:none;border-radius:12px;background:rgba(0,122,255,0.1);color:var(--primary);font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;flex-shrink:0}
.chat-sidebar-new:active{background:rgba(0,122,255,0.16)}
.chat-sidebar-new .ui-icon{width:16px;height:16px}
.chat-sidebar-list{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:0 8px 12px}
.chat-side-item{display:flex;align-items:center;gap:6px;width:100%;padding:10px 10px;border:none;border-radius:12px;background:transparent;cursor:pointer;font-size:14px;font-family:inherit;color:var(--text-primary);text-align:left;transition:background 0.15s}
.chat-side-item:active{background:var(--border-light)}
.chat-side-item.active{background:rgba(0,122,255,0.1);color:var(--primary);font-weight:600}
.chat-side-title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-side-delete{font-size:15px;color:var(--text-tertiary);opacity:0.55;padding:2px 4px;flex-shrink:0;transition:opacity 0.15s,color 0.15s}
.chat-side-delete:hover{opacity:1;color:#FF9500}
.chat-side-delete.confirm{opacity:1;color:#FF9500;animation:shake 0.3s}
.chat-image-preview{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.chat-image-preview img{width:56px;height:56px;object-fit:cover;border-radius:10px;border:2px solid rgba(0,122,255,0.12)}
.chat-image-modal{position:fixed;inset:0;background:rgba(0,0,0,0.6);display:none;align-items:center;justify-content:center;z-index:1200}
.chat-image-modal.active{display:flex}
.chat-image-modal img{max-width:92vw;max-height:86vh;border-radius:12px;background:#000}
.chat-image-modal-close{position:fixed;top:16px;right:16px;width:34px;height:34px;border-radius:50%;background:rgba(0,0,0,0.6);color:#fff;font-size:18px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2}
.chat-image-modal img{cursor:zoom-in}
.chat-image-modal.is-zoomed{display:block;overflow:auto;text-align:center}
.chat-image-modal.is-zoomed img{max-width:none;max-height:none;border-radius:0;cursor:zoom-out}
.chat-image-modal-dl{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);padding:8px 18px;border-radius:999px;background:#fff;color:#1d1d1f;font-size:14px;font-weight:600;text-decoration:none;box-shadow:0 4px 16px rgba(0,0,0,0.25);z-index:2}
.chat-image-modal-dl[hidden]{display:none}
.chat-image-modal-hint{position:fixed;top:22px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,0.75);font-size:12px;pointer-events:none}
.chat-marked{margin-top:10px}
.chat-marked-hint{margin-left:8px;font-size:12px;font-weight:400;color:#8e8e93}
.chat-marked-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:6px}
.chat-marked-item{margin:0;border:1px solid rgba(0,0,0,0.08);border-radius:12px;overflow:hidden;background:#fff}
.chat-marked-item img{display:block;width:100%;height:200px;object-fit:cover;object-position:top;cursor:zoom-in;background:#f2f2f7}
.chat-marked-item.is-gone img{visibility:hidden}
.chat-marked-item figcaption{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:6px 8px;font-size:12px;color:#6e6e73}
.chat-marked-dl{display:inline-flex;align-items:center;gap:3px;flex-shrink:0;color:#007AFF;text-decoration:none;font-weight:600}
.chat-marked-dl svg{width:14px;height:14px}
.chat-loading{display:flex;align-items:center;gap:6px;padding:10px}
.chat-loading .dot{width:7px;height:7px;background: var(--primary-gradient);border-radius:50%;animation:chatDot 1.4s infinite}
.chat-loading .dot:nth-child(2){animation-delay:0.2s;background: var(--primary-gradient)}
.chat-loading .dot:nth-child(3){animation-delay:0.4s;background: var(--primary-gradient)}
@keyframes chatDot{0%,80%,100%{transform:scale(0)}40%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-2px)}75%{transform:translateX(2px)}}
.chat-sessions{border-bottom:1px solid var(--border-light);padding:10px 16px;background:rgba(255,255,255,0.9)}
.chat-sessions-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px}
.chat-sessions-scroll::-webkit-scrollbar{display:none}
.chat-session-chip{flex-shrink:0;padding:8px 14px;border-radius:20px;font-size:13px;background:var(--border-light);cursor:pointer;white-space:nowrap;border:none;display:flex;align-items:center;gap:6px;transition:all 0.2s}
.chat-session-chip.active{color:var(--primary);font-weight:600;background:rgba(0,122,255,0.1)}
.chat-session-chip.new{background:rgba(0,122,255,0.12);color:var(--primary);font-weight:600}
.session-title{max-width:80px;overflow:hidden;text-overflow:ellipsis}
.session-delete{font-size:14px;color:var(--text-secondary);opacity:0.6;transition:all 0.2s}
.session-delete:hover{opacity:1;color:#FF9500}
.session-delete.confirm{opacity:1;color:#FF9500;animation:shake 0.3s}
.selection-popup{position:fixed;background:rgba(255,255,255,0.94);color:var(--primary);padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;cursor:pointer;border:1px solid rgba(0,122,255,0.16);box-shadow:0 4px 16px rgba(0,0,0,0.08);z-index:999;display:none;white-space:nowrap;transition:transform 0.15s ease,background 0.15s}
.selection-popup:active{transform:scale(0.97);background:rgba(0,122,255,0.08)}
.selection-popup::after{content:'';position:absolute;bottom:-5px;left:50%;transform:translateX(-50%);border-width:5px 5px 0 5px;border-style:solid;border-color:rgba(255,255,255,0.94) transparent transparent transparent}
.selectable-content{user-select:text;-webkit-user-select:text}
.chat-meta{align-self:flex-start;margin:0 0 -2px 4px}
.chat-meta[hidden]{display:none}
.chat-meta summary{list-style:none;display:inline-block;cursor:pointer;outline:none}
.chat-meta summary::-webkit-details-marker{display:none}
.chat-meta-toggle{display:inline-flex;align-items:center;justify-content:center;padding:3px 5px;border-radius:10px;background:transparent;transition:all 0.2s cubic-bezier(0.4,0,0.2,1);cursor:pointer;color:#c7c7cc;line-height:0;opacity:0.7}
.chat-meta-toggle:hover{background:rgba(0,122,255,0.1);color:#007AFF;opacity:1;transform:translateY(-1px)}
.chat-meta[open] .chat-meta-toggle{background:rgba(0,122,255,0.13);color:#007AFF;opacity:1}
.cloud-icon{width:16px;height:11px;display:block;transition:all 0.3s ease}
.chat-meta-toggle:hover .cloud-icon{transform:translateY(-1px) scale(1.08)}
.chat-meta-toggle.streaming{color:#FF9500;opacity:1}
.chat-meta-toggle.streaming .cloud-icon{animation:cloudFloat 2.2s ease-in-out infinite}
@keyframes cloudFloat{0%,100%{transform:translateY(0) scale(1);opacity:0.85}50%{transform:translateY(-2px) scale(1.05);opacity:1}}
.chat-meta-panel{margin-top:6px;background:rgba(255,255,255,0.78);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(0,0,0,0.06);border-radius:14px;padding:10px 12px;box-shadow:0 6px 20px rgba(0,0,0,0.06);max-width:340px;display:flex;flex-direction:column;gap:9px;animation:metaPanelIn 0.22s cubic-bezier(0.4,0,0.2,1)}
@keyframes metaPanelIn{from{opacity:0;transform:translateY(-4px) scale(0.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.meta-block[hidden]{display:none}
.meta-block.reasoning{font-size:12px;line-height:1.55;color:#6e6e73;white-space:pre-wrap;word-break:break-word;max-height:240px;overflow-y:auto;padding-right:2px}
.meta-block.tools{display:flex;flex-wrap:wrap;gap:5px}
.meta-tool-chip{display:inline-flex;align-items:center;gap:5px;padding:3px 8px;border-radius:10px;background:rgba(0,0,0,0.04);font-size:11px;color:#3a3a3c;line-height:1.2;letter-spacing:0.1px;transition:all 0.2s ease;animation:chipIn 0.25s ease}
@keyframes chipIn{from{opacity:0;transform:translateY(-2px) scale(0.92)}to{opacity:1;transform:translateY(0) scale(1)}}
.meta-tool-chip.running{background:rgba(255,149,0,0.08);color:#C45F00}
.meta-tool-chip.done{background:rgba(52,199,89,0.08);color:#1E7A3C}
.mtc-dot{width:5px;height:5px;border-radius:50%;background:currentColor;opacity:0.6}
.mtc-dot.spinning{animation:metaPulse 1.1s ease-in-out infinite}
.meta-block.stats{display:flex;flex-wrap:wrap;gap:10px;font-size:11px;color:#86868b;font-variant-numeric:tabular-nums;letter-spacing:0.2px;border-top:1px solid rgba(0,0,0,0.05);padding-top:7px}
.meta-block.stats .stat{display:inline-flex;align-items:center;gap:3px}
.meta-block.stats .stat i{font-style:normal;opacity:0.55;font-size:10.5px}
.chat-bubble.md{white-space:normal}
.chat-bubble.md > *:first-child{margin-top:0}
.chat-bubble.md > *:last-child{margin-bottom:0}
.chat-bubble.md p{margin:0 0 8px;line-height:1.6}
.chat-bubble.md p:last-child{margin-bottom:0}
.chat-bubble.md h3,.chat-bubble.md h4,.chat-bubble.md h5{margin:10px 0 6px;font-weight:600;line-height:1.35;letter-spacing:0.2px}
.chat-bubble.md h3{font-size:15.5px}
.chat-bubble.md h4{font-size:14.5px}
.chat-bubble.md h5{font-size:13.5px;color:var(--text-secondary)}
.chat-bubble.md ul,.chat-bubble.md ol{margin:4px 0 8px;padding-left:22px}
.chat-bubble.md li{margin:3px 0;line-height:1.55}
.chat-bubble.md li > p{margin:0}
.chat-bubble.md ul{list-style:disc}
.chat-bubble.md ol{list-style:decimal}
.chat-bubble.md strong{font-weight:600}
.chat-bubble.md em{font-style:italic}
.chat-bubble.md del{opacity:0.6}
.chat-bubble.md hr{border:none;border-top:1px solid rgba(0,0,0,0.08);margin:10px 0}
.chat-bubble.md a{color:#007AFF;text-decoration:none;border-bottom:1px solid rgba(0,122,255,0.25)}
.chat-bubble.md a:hover{border-bottom-color:#007AFF}
.chat-bubble.md blockquote{margin:6px 0;padding:6px 12px;border-left:3px solid rgba(0,122,255,0.3);background:rgba(0,122,255,0.04);border-radius:0 8px 8px 0;color:var(--text-secondary)}
.chat-bubble.md blockquote p{margin:0}
.chat-bubble.md code.md-inline-code{background:rgba(0,0,0,0.05);padding:1px 6px;border-radius:5px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:0.88em;color:#d63384}
.chat-bubble.md pre.md-code-block{margin:8px 0;padding:10px 12px;background:rgba(0,0,0,0.04);border-radius:10px;overflow-x:auto;font-size:12.5px;line-height:1.5}
.chat-bubble.md pre.md-code-block code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#1d1d1f;background:none;padding:0}
.chat-message.user .chat-bubble.md a{color:#fff;border-bottom-color:rgba(255,255,255,0.5)}
.meta-block.reasoning p{margin:0 0 6px}
.meta-block.reasoning ul,.meta-block.reasoning ol{margin:3px 0 5px;padding-left:18px}
.meta-block.reasoning li{margin:2px 0}
.meta-block.reasoning code.md-inline-code{background:rgba(0,0,0,0.06);padding:0 4px;border-radius:4px;font-size:0.88em}
.meta-block.reasoning pre.md-code-block{margin:5px 0;padding:6px 8px;background:rgba(0,0,0,0.05);border-radius:6px;font-size:11.5px}
@media (min-width: 900px) {
  .chat-modal.active{align-items:center}
  .chat-modal .modal-content{max-width:min(1040px,calc(100vw - 64px));width:100%;height:min(760px,88vh);border-radius:24px;box-shadow:0 25px 60px -12px rgba(0,0,0,0.12);transform:translateY(16px) scale(0.97)}
  .chat-modal.active .modal-content{transform:translateY(0) scale(1)}
  .chat-body{flex-direction:row}
  .chat-sidebar{display:flex;flex-direction:column;width:228px;flex-shrink:0;border-right:1px solid var(--border-light);background:rgba(248,248,252,0.96)}
  .chat-sessions--mobile{display:none}
  .chat-messages:not(.is-empty){padding:24px 28px}
  .chat-empty{padding:40px 32px}
  .chat-cap-list{max-width:360px}
  .chat-header{padding-left:24px;padding-right:24px}
  .chat-input-area{padding:12px 20px 16px}
  .chat-bubble-group{max-width:88%}
  .chat-meta-panel{max-width:480px}
  .session-title{max-width:140px}
}
@media (prefers-reduced-motion: reduce){
  .chat-modal,.chat-modal .modal-content{transition:none!important}
  .chat-modal.active .modal-content{transform:none;opacity:1}
}
@media (prefers-color-scheme: dark){.chat-modal .modal-content{background:var(--card)}.chat-header,.chat-sessions{background:rgba(28,28,30,0.9)}.chat-sidebar{background:rgba(22,22,24,0.96);border-right-color:rgba(255,255,255,0.08)}.chat-message.assistant .chat-bubble{background:var(--card);border-color:var(--border-light)}.chat-message.user .chat-bubble{background:rgba(10,132,255,0.78)}.chat-messages{background:var(--background)}.chat-empty{background:var(--background)}.chat-input-area{background:var(--card)}.chat-compose-field{background:rgba(255,255,255,0.06)}.chat-camera-btn,.chat-send-btn{background:rgba(10,132,255,0.14)}.chat-send-btn{color:#64B5FF}.chat-camera-vf-c{border-color:rgba(100,210,255,0.34)}.chat-meta-toggle{background:transparent;color:#5c5c61}.chat-meta-toggle:hover{background:rgba(99,154,255,0.16);color:#7AB8FF}.chat-meta[open] .chat-meta-toggle{background:rgba(99,154,255,0.2);color:#7AB8FF}.chat-meta-panel{background:rgba(28,28,30,0.85);border-color:rgba(255,255,255,0.08)}.meta-block.reasoning{color:#b6b6bb}.meta-tool-chip{background:rgba(255,255,255,0.06);color:#d6d6db}.meta-tool-chip.running{background:rgba(255,149,0,0.14);color:#FFB45A}.meta-tool-chip.done{background:rgba(52,199,89,0.14);color:#7AE095}.meta-block.stats{border-top-color:rgba(255,255,255,0.08)}.chat-bubble.md hr{border-top-color:rgba(255,255,255,0.1)}.chat-bubble.md blockquote{background:rgba(99,154,255,0.07);border-left-color:rgba(99,154,255,0.4)}.chat-bubble.md code.md-inline-code{background:rgba(255,255,255,0.08);color:#FF9AC8}.chat-bubble.md pre.md-code-block{background:rgba(255,255,255,0.06)}.chat-bubble.md pre.md-code-block code{color:#e6e6eb}.selection-popup{background:rgba(40,40,42,0.94);border-color:rgba(10,132,255,0.22);color:#64B5FF}.selection-popup::after{border-top-color:rgba(40,40,42,0.94)}}
body.chat-cam-open{overflow:hidden}
.chat-cam{position:fixed;inset:0;z-index:1400;background:#000;overflow:hidden}
.chat-cam[hidden]{display:none!important}
.chat-cam-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#111;z-index:1;-webkit-transform:translateZ(0);transform:translateZ(0);-webkit-backface-visibility:hidden;backface-visibility:hidden}
.chat-cam-focus{position:absolute;left:0;right:0;top:calc(52px + var(--safe-area-top));bottom:calc(118px + var(--safe-area-bottom));z-index:6;border:none;padding:0;margin:0;background:transparent;cursor:crosshair;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
.chat-cam-vf-wrap{position:absolute;left:14px;right:14px;top:calc(52px + var(--safe-area-top));bottom:calc(118px + var(--safe-area-bottom));z-index:5;pointer-events:none}
.chat-cam-vf{position:relative;width:100%;height:100%;min-height:120px;border-radius:6px;box-shadow:0 0 0 200vmax rgba(0,0,0,0.42)}
.chat-cam-vf-caption{position:absolute;left:50%;top:10px;transform:translateX(-50%);z-index:2;white-space:nowrap;max-width:calc(100% - 24px);overflow:hidden;text-overflow:ellipsis;padding:5px 12px;border-radius:999px;font-size:11.5px;font-weight:600;color:#fff;background:rgba(0,0,0,0.62);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);pointer-events:none}
.chat-cam-corner{position:absolute;width:32px;height:32px;border:0 solid rgba(255,255,255,0.92)}
.chat-cam-corner.tl{top:0;left:0;border-top-width:3px;border-left-width:3px;border-top-left-radius:4px}
.chat-cam-corner.tr{top:0;right:0;border-top-width:3px;border-right-width:3px;border-top-right-radius:4px}
.chat-cam-corner.bl{bottom:0;left:0;border-bottom-width:3px;border-left-width:3px;border-bottom-left-radius:4px}
.chat-cam-corner.br{bottom:0;right:0;border-bottom-width:3px;border-right-width:3px;border-bottom-right-radius:4px}
.chat-cam-reticle{position:fixed;width:72px;height:72px;margin:-36px 0 0 -36px;border:2px solid rgba(255,255,255,0.95);border-radius:8px;box-shadow:0 0 0 9999px rgba(0,0,0,0.12),inset 0 0 0 1px rgba(0,0,0,0.25);pointer-events:none;z-index:7;animation:chatCamFocusPulse 0.55s ease-out}
.chat-cam-reticle[hidden]{display:none!important}
@keyframes chatCamFocusPulse{0%{transform:scale(1.35);opacity:0.55}100%{transform:scale(1);opacity:1}}
.chat-cam-hint{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;max-width:calc(100% - 40px);padding:9px 14px;font-size:13px;display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:999px;font-weight:600;color:#fff;line-height:1.35;text-align:center;background:rgba(0,0,0,0.58);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 2px 12px rgba(0,0,0,0.32);pointer-events:none}
.chat-cam-hint.is-soft{top:32%;font-size:12px;background:rgba(0,0,0,0.45)}
.chat-cam-hint[hidden]{display:none!important}
.chat-cam-hint-dot{width:7px;height:7px;border-radius:50%;background:#FF9500;box-shadow:0 0 0 3px rgba(255,149,0,0.32);flex-shrink:0;animation:chatCamHintPulse 1.1s ease-in-out infinite}
@keyframes chatCamHintPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.55;transform:scale(0.82)}}
.chat-cam-fallback{position:absolute;top:46%;left:16px;right:16px;transform:translateY(-50%);text-align:center;color:#fff;font-size:15px;background:rgba(0,0,0,0.72);padding:18px 16px;border-radius:16px;z-index:16;pointer-events:auto;display:flex;flex-direction:column;align-items:center;gap:10px}
.chat-cam-fallback[hidden]{display:none!important}
.chat-cam-fallback-title{font-size:17px;font-weight:800;line-height:1.3}
.chat-cam-fallback-desc{font-size:13px;line-height:1.5;color:rgba(255,255,255,0.82);font-weight:500}
.chat-cam-fallback-btn{width:100%;max-width:280px;border:none;border-radius:14px;min-height:46px;font-size:15px;font-weight:700;cursor:pointer;background:rgba(255,255,255,0.18);color:#fff}
.chat-cam-fallback-btn-primary{background:#007AFF}
.chat-cam-fallback-btn[hidden],.chat-cam-fallback-remember[hidden]{display:none!important}
.chat-cam-fallback-remember{display:flex;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,0.8);font-weight:500;cursor:pointer;margin-top:2px}
.chat-cam-fallback-remember input{width:16px;height:16px;accent-color:#007AFF;margin:0}
.chat-cam-fallback.is-native{top:auto;bottom:calc(110px + var(--safe-area-bottom));transform:none;padding:12px 14px;gap:4px;background:rgba(0,0,0,0.6)}
.chat-cam-fallback.is-native .chat-cam-fallback-title{font-size:15px}
.chat-cam-fallback.is-native .chat-cam-fallback-btn{display:none}
.chat-cam-mode.is-native{background:rgba(0,122,255,0.75)}
.chat-cam.is-native-cam .chat-cam-vf-wrap,.chat-cam.is-native-cam .chat-cam-video{display:none}
.chat-cam-top{position:absolute;top:0;left:0;right:0;z-index:8;display:flex;align-items:center;gap:8px;padding:calc(10px + var(--safe-area-top)) 12px 10px;background:linear-gradient(180deg,rgba(0,0,0,0.55),transparent)}
.chat-cam-top-btn{border:none;background:rgba(255,255,255,0.18);color:#fff;height:40px;border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;flex-shrink:0;padding:0 12px}
.chat-cam-top-btn[hidden]{display:none!important}
.chat-cam-top-btn[data-busy="1"]{opacity:0.55;pointer-events:none}
.chat-cam-meta{flex:1;min-width:0;text-align:center}
.chat-cam-title{font-size:14px;font-weight:600;color:#fff}
.chat-cam-sub{font-size:12px;color:rgba(255,255,255,0.82);margin-top:2px}
.chat-cam-pages-wrap{position:absolute;top:calc(52px + var(--safe-area-top));right:8px;bottom:calc(96px + var(--safe-area-bottom));z-index:20;width:52px;pointer-events:none;display:flex;flex-direction:column;justify-content:flex-end}
.chat-cam-pages{position:relative;display:flex;flex-direction:column;align-items:flex-end;gap:8px;pointer-events:auto;min-height:0;max-height:100%;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-top:8px}
.chat-cam-page{position:relative;width:44px;height:56px;border-radius:8px;overflow:visible;border:2px solid rgba(255,255,255,0.85);box-shadow:0 2px 8px rgba(0,0,0,0.35)}
.chat-cam-page img{width:100%;height:100%;object-fit:cover;display:block;border-radius:6px}
.chat-cam-page-remove{position:absolute;top:-6px;right:-6px;width:22px;height:22px;border:none;background:rgba(0,0,0,0.78);color:#fff;font-size:14px;line-height:22px;padding:0;cursor:pointer;border-radius:50%;z-index:2}
.chat-cam-bar{position:absolute;left:0;right:0;bottom:0;z-index:10;display:grid;grid-template-columns:minmax(108px,1.15fr) 72px minmax(108px,1.15fr);align-items:center;gap:10px;padding:12px 16px calc(14px + var(--safe-area-bottom));background:linear-gradient(0deg,rgba(0,0,0,0.72),transparent)}
.chat-cam-side{border:none;background:rgba(255,255,255,0.16);color:#fff;min-height:52px;border-radius:16px;font-size:14px;font-weight:700;padding:10px 6px;cursor:pointer}
.chat-cam-send{background:var(--primary,#007AFF);opacity:0.45}
.chat-cam-send.is-ready{opacity:1;box-shadow:0 0 0 3px rgba(0,122,255,0.35)}
.chat-cam-send:disabled{cursor:not-allowed}
.chat-cam-shutter{justify-self:center;width:72px;height:72px;border-radius:50%;border:4px solid #fff;background:rgba(255,255,255,0.22);box-shadow:0 0 0 4px rgba(255,255,255,0.28);cursor:pointer;transition:transform 0.12s}
.chat-cam-shutter:active{transform:scale(0.94)}
.chat-status{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:14px;background:rgba(0,122,255,0.06);color:var(--text-secondary);font-size:13px;line-height:1.4;max-width:100%;animation:metaPanelIn 0.2s ease}
.chat-status[hidden]{display:none}
.chat-status-dots{display:inline-flex;gap:3px;flex-shrink:0}
.chat-status-dots i{width:5px;height:5px;border-radius:50%;background:var(--primary);opacity:0.55;animation:chatDot 1.4s infinite}
.chat-status-dots i:nth-child(2){animation-delay:0.2s}
.chat-status-dots i:nth-child(3){animation-delay:0.4s}
.chat-status-text{min-width:0;word-break:break-word}
.chat-bubble[hidden]{display:none}
.chat-status-time{font-variant-numeric:tabular-nums;color:var(--text-tertiary);font-size:12px;flex-shrink:0}
.chat-aborted{margin-top:8px;font-size:12.5px;color:var(--text-tertiary)}
.chat-stream-error{margin-top:8px;font-size:12.5px;color:#FF3B30}
.chat-caret{position:relative;display:inline;width:0}
.chat-caret::after{content:'';position:absolute;left:2px;bottom:-0.15em;width:2px;height:1em;border-radius:1px;background:var(--primary,#007aff);opacity:.55;animation:chatCaretBreath 1.1s ease-in-out infinite}
@keyframes chatCaretBreath{0%,100%{opacity:.55}50%{opacity:.15}}
.chat-send-btn.is-stop{background:rgba(255,59,48,0.1);color:#FF3B30}
.chat-send-btn.is-stop .ui-icon{width:18px;height:18px}
.chat-ui-slot:empty{display:none}
.chat-options{display:flex;flex-direction:column;gap:8px;max-width:100%}
.chat-options-title{font-size:12.5px;color:var(--text-tertiary);padding-left:4px}
.chat-options-list{display:flex;flex-wrap:wrap;gap:8px}
.chat-option-chip{display:inline-flex;flex-direction:column;align-items:flex-start;gap:2px;min-height:40px;padding:8px 14px;border:none;border-radius:14px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,0.05),inset 0 0 0 1px rgba(0,122,255,0.22);color:var(--primary);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;text-align:left;transition:transform 0.1s,box-shadow 0.15s,background 0.15s;touch-action:manipulation}
.chat-option-chip:active{transform:scale(0.97)}
.chat-option-chip.is-recommended{background:rgba(0,122,255,0.08);box-shadow:inset 0 0 0 1.5px rgba(0,122,255,0.45)}
.chat-option-chip.is-picked{background:var(--primary);color:#fff;box-shadow:none}
.chat-option-chip.is-picked .chat-option-desc,.chat-option-chip.is-picked .chat-option-tag{color:rgba(255,255,255,0.85);background:rgba(255,255,255,0.18)}
.chat-option-chip.is-disabled{opacity:0.55;cursor:default}
.chat-option-chip.is-disabled.is-picked{opacity:1}
.chat-option-chip.is-other{color:var(--text-secondary);box-shadow:inset 0 0 0 1px rgba(0,0,0,0.1);font-weight:500}
.chat-option-label{display:inline-flex;align-items:center;gap:6px;line-height:1.3}
.chat-option-tag{font-size:10.5px;font-weight:700;padding:1px 6px;border-radius:999px;background:rgba(0,122,255,0.14);color:var(--primary);line-height:1.4}
.chat-option-desc{font-size:11.5px;font-weight:400;color:var(--text-tertiary);line-height:1.3}
.chat-option-confirm{align-self:flex-start;border:none;border-radius:12px;padding:9px 18px;background:var(--primary);color:#fff;font-size:14px;font-weight:700;font-family:inherit;cursor:pointer}
.chat-option-confirm[hidden]{display:none}
.chat-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.chat-action-btn{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:8px 16px;border:none;border-radius:14px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,0.05),inset 0 0 0 1px rgba(0,122,255,0.22);color:var(--primary);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;text-decoration:none;transition:transform 0.1s;touch-action:manipulation}
.chat-action-btn:active{transform:scale(0.97)}
.chat-action-btn.is-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(0,122,255,0.28)}
.chat-nav-peek{flex-shrink:0;min-height:36px;padding:6px 12px;border:none;border-radius:12px;background:transparent;color:var(--primary);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;touch-action:manipulation}
.chat-nav-peek:active{opacity:0.5}
.chat-nav-receipt{justify-content:space-between;padding:4px 4px 4px 14px;border-radius:16px;background:rgba(52,199,89,0.08);animation:chipIn 0.25s ease}
.chat-nav-receipt-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-secondary);min-width:0}
.chat-nav-receipt-text [data-icon],.chat-nav-receipt-text svg{color:#34C759;width:16px;height:16px;flex-shrink:0}
.chat-modal.no-anim,.chat-modal.no-anim .modal-content{transition:none!important}
.chat-action-btn .ui-icon{width:17px;height:17px}
.chat-action-btn:disabled{opacity:0.5;cursor:default}
.chat-preview{display:flex;flex-direction:column;gap:8px;width:100%;max-width:100%}
.chat-preview-table{display:flex;flex-direction:column;border-radius:14px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,0.05),inset 0 0 0 1px rgba(0,0,0,0.06);overflow:hidden;max-height:min(46vh,420px);overflow-y:auto;-webkit-overflow-scrolling:touch}
.chat-preview-row{display:flex;align-items:center;gap:6px;padding:4px 8px;border-bottom:1px solid rgba(0,0,0,0.05)}
.chat-preview-row:last-child{border-bottom:none}
.chat-preview-row.is-head{position:sticky;top:0;background:rgba(0,122,255,0.06);color:var(--text-tertiary);font-size:12px;font-weight:600;padding:6px 8px;z-index:1}
.chat-preview-cell{flex:1;min-width:0;font-size:14px;color:var(--text-primary);line-height:1.4;padding:6px 4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-preview-cell i{color:var(--text-tertiary);font-style:normal}
.chat-preview-input{border:none;background:transparent;border-radius:8px;font-family:inherit;font-size:16px;padding:6px 8px;color:var(--text-primary);outline:none;-webkit-appearance:none}
.chat-preview-input:focus{background:rgba(0,122,255,0.08)}
.chat-preview-input::placeholder{color:var(--text-tertiary);opacity:0.6}
.chat-preview-del{flex:0 0 28px;width:28px;height:28px;border:none;border-radius:50%;background:transparent;color:var(--text-tertiary);font-size:18px;line-height:1;cursor:pointer;font-family:inherit}
.chat-preview-del:active{background:rgba(255,59,48,0.12);color:#FF3B30}
.chat-preview-foot{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between}
.chat-preview-note{font-size:12px;color:var(--text-tertiary);padding-left:4px}
.chat-preview-static{font-size:12px;color:var(--text-tertiary);padding:6px 4px}
.chat-preview.is-done .chat-preview-table{opacity:0.75}
.chat-compose-field textarea{min-width:0}
.chat-doc-btn{flex:0 0 40px;width:40px;min-height:44px;align-self:stretch;margin:0;border:none;background:transparent;color:var(--primary);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;transition:color 0.18s}
.chat-doc-btn::before{content:'';position:absolute;width:30px;height:30px;border-radius:50%;background:rgba(0,122,255,0.1)}
.chat-doc-btn{position:relative}
.chat-doc-btn svg{position:relative;width:18px;height:18px}
.chat-doc-btn:active::before{background:rgba(0,122,255,0.2)}
.chat-doc-btn.is-busy{color:var(--primary);animation:chatDocPulse 0.9s ease-in-out infinite}
@keyframes chatDocPulse{0%,100%{opacity:1}50%{opacity:0.35}}
.chat-compose.is-multiline .chat-doc-btn{align-self:flex-end}
@media (max-width:340px){.chat-compose:not(.is-multiline) .chat-mode-btn{display:none}.chat-compose:not(.is-multiline) .chat-compose-field{padding-right:4px}.chat-compose:not(.is-multiline) .chat-compose-field textarea{padding-left:12px}.chat-doc-btn{flex-basis:34px;width:34px}}
@media (prefers-color-scheme: dark){.chat-preview-table{background:var(--card);box-shadow:inset 0 0 0 1px rgba(255,255,255,0.08)}.chat-preview-row.is-head{background:rgba(10,132,255,0.14)}}
@media (prefers-color-scheme: dark){.chat-status{background:rgba(10,132,255,0.12)}.chat-option-chip,.chat-action-btn{background:var(--card);box-shadow:inset 0 0 0 1px rgba(100,181,255,0.35);color:#64B5FF}.chat-option-chip.is-recommended{background:rgba(10,132,255,0.16)}.chat-option-chip.is-picked,.chat-action-btn.is-primary{background:#0A84FF;color:#fff}}