.chat-page{display:flex;height:100vh;overflow:hidden}.chat-sidebar{width:280px;border-right:1px solid var(--border);background:var(--surface);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}.chat-main{flex:1;display:flex;flex-direction:column;overflow:hidden}.conv-list{flex:1;overflow-y:auto;padding:6px}.conv-item{display:flex;flex-direction:column;gap:3px;padding:10px 12px;border-radius:10px;cursor:pointer;transition:all .15s;border:1px solid transparent}.conv-item:hover{background:var(--gray-100)}.conv-item.active{background:var(--gray-100);border-color:var(--gray-300);box-shadow:var(--shadow)}.conv-item.active .conv-title{font-weight:600}.conv-title{font-size:.82rem;font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conv-snippet{font-size:.68rem;color:var(--muted);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conv-tags{display:flex;gap:4px;margin-top:3px}.conv-tag-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}body.dark .conv-item:hover{background:var(--gray-200)}body.dark .conv-item.active{background:var(--gray-200);border-color:var(--gray-400)}.message-list{flex:1;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column;gap:1rem}.message{display:flex;gap:12px;max-width:85%;animation:fadeIn .2s ease}.message.user{margin-left:auto;flex-direction:row-reverse}.message-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:600;color:#fff;flex-shrink:0}.message-bubble{padding:10px 14px;border-radius:12px;font-size:.82rem;line-height:1.6;color:var(--text)}.message.assistant .message-avatar{background:var(--gray-400)}.message.assistant .message-bubble{background:var(--gray-100)}.message.user .message-avatar{background:var(--accent)}.message.user .message-bubble{background:var(--accent-container);color:var(--on-accent-container)}.message-actions{display:flex;gap:4px;margin-top:4px;opacity:0;transition:opacity .15s}.message:hover .message-actions{opacity:1}.message-action-btn{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;border:none;background:var(--gray-100);color:var(--muted);cursor:pointer;font-size:0;padding:0}.message-action-btn .material-symbols-outlined{font-size:14px}.message-action-btn:hover{background:var(--gray-200);color:var(--text)}.message-time{font-size:.6rem;color:var(--gray-400);margin-top:2px}body.dark .message.assistant .message-bubble{background:var(--gray-200)}body.dark .message.user .message-bubble{background:var(--accent-container);color:var(--on-accent-container)}body.dark .message-action-btn{background:var(--gray-200)}body.dark .message-action-btn:hover{background:var(--gray-300)}.typing-indicator{display:flex;gap:4px;padding:10px 14px;background:var(--gray-100);border-radius:12px;width:fit-content}.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--gray-400);animation:typingBounce 1.2s infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-4px)}}body.dark .typing-indicator{background:var(--gray-200)}.thinking-block{margin:8px 0;border-radius:8px;border:1px solid var(--border);overflow:hidden}.thinking-block summary{padding:8px 12px;font-size:.72rem;font-weight:500;color:var(--muted);cursor:pointer;background:var(--gray-50);display:flex;align-items:center;gap:6px;list-style:none}.thinking-block summary:before{content:"psychology";font-family:Material Symbols Outlined;font-size:16px;color:var(--purple)}.thinking-block[open] summary{border-bottom:1px solid var(--border)}.thinking-content{padding:10px 12px;font-size:.75rem;color:var(--gray-600);line-height:1.6;background:var(--surface)}body.dark .thinking-block summary{background:var(--gray-100)}body.dark .thinking-content{background:var(--gray-100)}.chat-input-area{display:flex;align-items:flex-end;gap:8px;padding:12px 16px;border-top:1px solid var(--border);background:var(--white)}.chat-input{flex:1;resize:none;border:1px solid var(--outline-variant);border-radius:12px;padding:10px 14px;font-size:.82rem;font-family:inherit;background:var(--surface);color:var(--text);min-height:44px;max-height:200px;outline:none;transition:border-color .15s}.chat-input:focus{border-color:var(--accent)}.chat-input::placeholder{color:var(--gray-400)}.chat-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:none;cursor:pointer;flex-shrink:0;padding:0;transition:all .15s}.chat-btn .material-symbols-outlined{font-size:20px}.chat-btn-send{background:var(--accent);color:#fff}.chat-btn-send:hover{background:var(--accent-dark)}.chat-btn-attach{background:var(--gray-100);color:var(--gray-600)}.chat-btn-attach:hover{background:var(--gray-200)}.chat-btn-mic{background:var(--gray-100);color:var(--gray-600)}.chat-btn-mic:hover{background:var(--gray-200)}.chat-btn-mic.recording{background:var(--red);color:#fff;animation:micPulse 1.5s infinite}@keyframes micPulse{0%,to{box-shadow:0 0 #ba1a1a66}50%{box-shadow:0 0 0 8px #ba1a1a00}}body.dark .chat-input-area{background:var(--surface)}body.dark .chat-input{background:var(--gray-100);border-color:var(--gray-300)}body.dark .chat-btn-attach,body.dark .chat-btn-mic{background:var(--gray-200);color:var(--gray-500)}.model-selector{position:relative;display:inline-block}.model-selector-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:8px;border:1px solid var(--border);background:var(--white);color:var(--text);cursor:pointer;font-size:.75rem;font-weight:500;font-family:inherit;transition:all .15s}.model-selector-btn:hover{background:var(--gray-50);border-color:var(--gray-300)}.model-selector-btn .material-symbols-outlined{font-size:16px;color:var(--muted)}.model-selector-menu{position:absolute;top:calc(100% + 4px);left:0;z-index:1000;min-width:240px;background:var(--white);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow-lg);padding:4px 0;opacity:0;visibility:hidden;transform:translateY(-4px);transition:all .15s}.model-selector-menu.open{opacity:1;visibility:visible;transform:translateY(0)}.model-selector-item{display:flex;align-items:center;gap:8px;width:100%;padding:8px 12px;font-size:.78rem;color:var(--text);background:none;border:none;cursor:pointer;font-family:inherit;text-align:left;transition:background .1s}.model-selector-item:hover{background:var(--gray-50)}.model-selector-item.active{background:var(--accent-container)}.model-selector-item .material-symbols-outlined{font-size:16px;color:var(--green)}body.dark .model-selector-btn,body.dark .model-selector-menu{background:var(--gray-100);border-color:var(--gray-300)}body.dark .model-selector-item:hover{background:var(--gray-200)}.ft-tag{display:inline-flex;padding:2px 8px;border-radius:4px;font-size:.6rem;font-weight:600;letter-spacing:.02em}.ft-tag-code{background:var(--blue-50);color:var(--blue)}.ft-tag-vision{background:var(--purple, #7B5E8E);color:#fff}.ft-tag-long{background:var(--green-50);color:var(--green)}.ft-tag-fast{background:var(--orange-50);color:var(--orange)}.chat-toolbar{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;border-bottom:1px solid var(--border);background:var(--white);gap:8px}.toolbar-toggle{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:6px;border:1px solid var(--border);background:var(--white);color:var(--muted);cursor:pointer;font-size:.72rem;font-weight:500;font-family:inherit;transition:all .15s}.toolbar-toggle .material-symbols-outlined{font-size:16px}.toolbar-toggle:hover{background:var(--gray-50)}.toolbar-toggle.active{background:var(--accent-container);color:var(--on-accent-container);border-color:var(--accent)}.token-counter{font-size:.65rem;font-family:var(--mono);font-weight:500;padding:2px 8px;border-radius:4px;background:var(--gray-100);color:var(--muted)}.token-counter.warning{background:var(--orange-50);color:var(--orange)}.token-counter.danger{background:var(--red-50);color:var(--red)}body.dark .chat-toolbar{background:var(--surface)}body.dark .toolbar-toggle{background:var(--gray-100);border-color:var(--gray-300)}.attach-list{display:flex;gap:6px;padding:8px 16px 0;flex-wrap:wrap}.attach-preview{display:flex;align-items:center;gap:6px;padding:6px 10px;border-radius:8px;background:var(--gray-100);border:1px solid var(--border);font-size:.72rem;color:var(--text)}.attach-preview-icon{font-size:16px;color:var(--muted)}.attach-preview-name{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attach-preview-remove{display:inline-flex;width:18px;height:18px;border-radius:50%;align-items:center;justify-content:center;background:var(--gray-200);color:var(--gray-500);border:none;cursor:pointer;font-size:0;padding:0}.attach-preview-remove .material-symbols-outlined{font-size:12px}.attach-preview-remove:hover{background:var(--red-50);color:var(--red)}.compare-columns{display:grid;gap:1px;background:var(--border);flex:1;overflow:hidden}.compare-columns-2{grid-template-columns:1fr 1fr}.compare-columns-3{grid-template-columns:1fr 1fr 1fr}.compare-column{display:flex;flex-direction:column;background:var(--white);overflow:hidden}.compare-column-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--border);background:var(--gray-50)}.compare-model-badge{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;font-weight:600;color:var(--text)}.compare-duration{font-size:.65rem;font-family:var(--mono);color:var(--muted)}.compare-keep-btn{padding:4px 10px;border-radius:6px;border:1px solid var(--green);background:var(--green-50);color:var(--green);cursor:pointer;font-size:.68rem;font-weight:600;font-family:inherit}.compare-keep-btn:hover{background:var(--green-100)}body.dark .compare-column{background:var(--surface)}body.dark .compare-column-header{background:var(--gray-100)}.pinned-bar{display:flex;gap:6px;padding:6px 16px;border-bottom:1px solid var(--border);overflow-x:auto;background:var(--surface)}.pinned-item{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:6px;background:var(--orange-50);color:var(--orange);font-size:.68rem;font-weight:500;white-space:nowrap;cursor:pointer;flex-shrink:0}.pinned-item .material-symbols-outlined{font-size:14px}.pinned-item:hover{background:var(--orange-100)}