*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:PingFang SC,PingFang HK,Helvetica Neue,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,system-ui,sans-serif;background:#fafafa;color:#1a2029;--brand-accent: #7B1811;--brand-accent-hover: #5A0F0A;--brand-accent-soft: rgba(123, 24, 17, .08);--brand-accent-ring: rgba(123, 24, 17, .3);--hitl-accent: #841811;--hitl-accent-hover: #6a130e;--hitl-accent-soft: rgba(132, 24, 17, .1);--hitl-accent-ring: rgba(132, 24, 17, .35);--hitl-fg: #1f1f1f;--hitl-fg-muted: #6b6b6b;--hitl-border: #d4d4d4;--hitl-bg: #ffffff;--hitl-bg-soft: #f7f8f9;--hitl-error: #b00020;--chat-accent: #7B1811;--chat-accent-hover: #5e120d;--chat-accent-soft: rgba(123, 24, 17, .08);--chat-accent-ring: rgba(123, 24, 17, .28);--chat-fg: #1A2029;--chat-fg-muted: #6b7280;--chat-border: #e7e7eb;--chat-border-strong: #d4d4d4;--chat-bg: #ffffff;--chat-bg-soft: #f7f8fa;--chat-bg-hover: #ececef;--chat-shadow-sm: 0 1px 2px rgba(15,23,42,.04);--chat-shadow-md: 0 4px 16px rgba(15,23,42,.08)}.login-page{height:100%;display:grid;place-items:center;background:var(--chat-bg-soft)}.login-form{width:360px;padding:28px 32px 24px;background:var(--chat-bg);border:1px solid var(--chat-border);border-radius:14px;box-shadow:0 12px 48px #0f172a1a;display:flex;flex-direction:column;gap:14px;color:var(--chat-fg)}.login-form h1{margin:0 0 4px;font-size:20px;font-weight:600;color:var(--chat-fg)}.login-form label{display:flex;flex-direction:column;gap:4px;font-size:12.5px;color:var(--chat-fg-muted);font-weight:500}.login-form input{height:36px;padding:0 12px;border:1px solid var(--chat-border-strong);border-radius:8px;background:var(--chat-bg);font-size:13.5px;color:var(--chat-fg);font-family:inherit;outline:none;transition:border-color .12s ease,box-shadow .12s ease}.login-form input:focus{border-color:var(--chat-accent);box-shadow:0 0 0 3px var(--chat-accent-ring)}.login-form button{margin-top:6px;height:38px;background:var(--chat-accent);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:background .12s ease}.login-form button:hover:not(:disabled){background:var(--chat-accent-hover)}.login-form button[disabled]{opacity:.55;cursor:wait}.login-form .error{color:#b00020;font-size:12.5px;padding:6px 10px;background:#b000200f;border-radius:6px}.login-form .form-footer{margin-top:2px;font-size:12.5px;color:var(--chat-fg-muted);text-align:center}.link-btn{background:none;border:none;padding:0 4px;color:var(--chat-accent);cursor:pointer;font-size:inherit;font-family:inherit;text-decoration:underline}.link-btn:hover{color:var(--chat-accent-hover)}.chat-shell{--sidebar-w: 280px;--topbar-h: 56px;display:grid;grid-template-rows:var(--topbar-h) 1fr;height:100%;background:var(--chat-bg);color:var(--chat-fg);--ak-accent: var(--chat-accent);--ak-accent-fg: #ffffff;--ak-accent-soft: var(--chat-accent-soft);--ak-bg: var(--chat-bg);--ak-fg: var(--chat-fg);--ak-fg-muted: var(--chat-fg-muted);--ak-border: var(--chat-border);--ak-border-strong: var(--chat-border-strong);--ak-surface: var(--chat-bg-soft);--ak-surface-2: var(--chat-bg-hover);--ak-user-bg: var(--chat-bg-soft);--ak-user-fg: var(--chat-fg);--ak-radius: 12px;--ak-radius-bubble: 14px}.chat-shell.is-sidebar-collapsed{--sidebar-w: 56px}.chat-body{display:grid;grid-template-columns:var(--sidebar-w) 1fr;min-height:0;transition:grid-template-columns .2s ease}.chat-topbar{display:flex;align-items:center;gap:12px;padding:0 14px;border-bottom:1px solid var(--chat-border);background:var(--chat-bg);z-index:5}.chat-topbar__toggle{width:34px;height:34px;border:1px solid transparent;border-radius:8px;background:transparent;color:var(--chat-fg-muted);cursor:pointer;font-size:20px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:background .12s ease,color .12s ease,border-color .12s 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4px;font-size:11.5px;font-weight:600;color:var(--chat-fg-muted);letter-spacing:.04em}.sidebar-section__label{flex:1;min-width:0;text-transform:none}.sidebar-section__body{flex:1 1 auto;overflow:auto;min-height:0;padding:0 2px}.sidebar-section__body .chat-thread-list{padding:4px 2px}.sidebar-fn-wrap{position:relative}.sidebar-popover{position:absolute;left:calc(100% + 6px);top:0;z-index:30;width:280px;max-height:70vh;background:var(--chat-bg);border:1px solid var(--chat-border);border-radius:10px;box-shadow:var(--chat-shadow-md);display:flex;flex-direction:column;visibility:hidden;opacity:0;transform:translate(-6px);transition:opacity .14s ease,transform .14s ease,visibility .14s}.sidebar-popover:before{content:"";position:absolute;left:-8px;top:0;width:8px;height:100%}.sidebar-fn-wrap:hover .sidebar-popover,.sidebar-fn-wrap:focus-within .sidebar-popover{visibility:visible;opacity:1;transform:translate(0)}.sidebar-popover__head{padding:10px 12px;font-size:12.5px;font-weight:600;color:var(--chat-fg-muted);border-bottom:1px solid var(--chat-border)}.sidebar-popover__body{flex:1;overflow:auto;min-height:0;padding:6px}.chat-thread-list{padding:0}.chat-sidebar-header{display:none}.chat-thread-list{flex:1;overflow:auto;min-height:0;padding:8px}.agentkit-thread-list__newbtn{width:100%;height:36px;margin-bottom:8px;border:1px solid var(--chat-border-strong)!important;border-radius:8px!important;background:var(--chat-bg)!important;color:var(--chat-fg)!important;font-size:13px;font-weight:500;cursor:pointer;transition:background .12s ease,border-color .12s ease,color .12s ease}.agentkit-thread-list__newbtn:hover{background:var(--chat-accent-soft)!important;border-color:var(--chat-accent-ring)!important;color:var(--chat-accent)!important}.agentkit-thread-list__item{border-radius:8px!important;padding:8px 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var(--chat-border);padding:12px 14px;background:var(--chat-bg-soft);display:flex;align-items:center;gap:10px;font-size:12px}.mode-picker__label{color:var(--chat-fg-muted);font-weight:500;flex-shrink:0;letter-spacing:.02em}.mode-picker__select{flex:1;min-width:0;height:30px;padding:0 28px 0 12px;border:1px solid var(--chat-border-strong);border-radius:999px;background:linear-gradient(45deg,transparent 50%,var(--chat-fg-muted) 50%) calc(100% - 14px) center / 5px 5px no-repeat,linear-gradient(135deg,var(--chat-fg-muted) 50%,transparent 50%) calc(100% - 9px) center / 5px 5px no-repeat,var(--chat-bg);appearance:none;-webkit-appearance:none;font-size:12.5px;font-weight:500;color:var(--chat-fg);cursor:pointer;transition:border-color .12s ease,box-shadow .12s ease}.mode-picker__select:hover:not(:disabled){border-color:var(--chat-accent-ring)}.mode-picker__select:focus{outline:none;border-color:var(--chat-accent);box-shadow:0 0 0 3px var(--chat-accent-ring)}.mode-picker__select:disabled{background-color:var(--chat-bg-soft);cursor:not-allowed;color:var(--chat-fg-muted);opacity:.85}.mode-picker__hint{font-size:13px;color:var(--chat-fg-muted);flex-shrink:0}.composer{position:relative;margin:12px auto 16px;padding:10px 12px 8px;max-width:768px;width:calc(100% - 24px);box-sizing:border-box;background:var(--chat-bg);border:1px solid var(--chat-border);border-radius:16px;box-shadow:var(--chat-shadow-sm);display:flex;flex-direction:column;gap:6px;transition:border-color .15s ease,box-shadow .15s ease}.composer:focus-within{border-color:var(--chat-accent-ring);box-shadow:0 0 0 3px var(--chat-accent-ring),var(--chat-shadow-md)}.composer--drag-over{border-color:var(--chat-accent);box-shadow:0 0 0 3px var(--chat-accent-ring),var(--chat-shadow-md);background:var(--chat-accent-soft)}.composer__drop-hint{position:absolute;inset:4px;display:grid;place-items:center;background:var(--chat-accent-soft);color:var(--chat-accent);font-size:14px;font-weight:600;border-radius:12px;pointer-events:none;z-index:10}.composer__attachments{display:flex;flex-wrap:wrap;gap:6px;padding:2px 2px 4px}.composer__textarea{width:100%;min-height:24px;max-height:220px;resize:none;padding:6px 4px;border:none;background:transparent;font-size:15px;line-height:1.5;font-family:inherit;color:var(--chat-fg);outline:none}.composer__textarea::placeholder{color:#9ca3af}.composer__error{color:#b00020;font-size:12px;padding:2px 4px}.composer__toolbar{display:flex;align-items:center;gap:8px;padding-top:2px}.composer__spacer{flex:1}.composer__attach-btn{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--chat-border);border-radius:8px;cursor:pointer;font-size:16px;padding:0;line-height:1;color:var(--chat-fg-muted);transition:background .12s ease,color .12s ease,border-color .12s ease}.composer__attach-btn:hover{background:var(--chat-accent-soft);color:var(--chat-accent);border-color:var(--chat-accent-ring)}.composer__attach-btn[disabled]{opacity:.45;cursor:not-allowed}.composer__web-btn,.composer__think-btn{position:relative;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--chat-border);border-radius:8px;cursor:pointer;padding:0;line-height:1;color:var(--chat-fg-muted);transition:background .12s ease,color .12s ease,border-color .12s ease;margin-left:6px}.composer__web-btn:hover,.composer__think-btn:hover,.composer__web-btn.is-on,.composer__think-btn.is-on{background:var(--chat-accent-soft);color:var(--chat-accent);border-color:var(--chat-accent-ring)}.composer__web-btn.is-off,.composer__think-btn.is-off{color:#94a3b8;background:transparent}.composer__web-btn[disabled],.composer__think-btn[disabled]{opacity:.45;cursor:not-allowed}.composer__web-slash{position:absolute;font-size:22px;line-height:1;font-weight:700;color:#ef4444;pointer-events:none;transform:rotate(20deg)}.composer__send-btn{height:32px;padding:0 18px;border:none;background:var(--chat-accent);color:#fff;border-radius:999px;font-size:13px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:background .15s 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2px}.examples-grid__title{font-size:13px;font-weight:600;color:var(--chat-fg);letter-spacing:.02em}.examples-grid__body{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}@media(max-width:560px){.examples-grid__body{grid-template-columns:1fr}}.example-card{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;background:var(--chat-bg);border:1px solid var(--chat-border);border-radius:12px;cursor:pointer;text-align:left;font-family:inherit;color:var(--chat-fg);min-width:0;transition:border-color .15s ease,background .15s ease}.example-card:hover{border-color:var(--chat-accent-ring);background:var(--chat-bg-soft)}.example-card__mode-icon{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:8px;background:var(--chat-bg-soft);color:var(--chat-fg-muted)}.example-card__mode-icon[data-mode=ppt]{color:#b45309;background:#b453091a}.example-card__mode-icon[data-mode=deep_research]{color:#1d4ed8;background:#1d4ed81a}.example-card__mode-icon[data-mode=agent]{color:var(--chat-accent);background:var(--chat-accent-soft)}.example-card__body{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}.example-card__title{font-weight:600;font-size:13.5px;color:var(--chat-fg);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.example-card__desc{font-size:12px;color:var(--chat-fg-muted);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.example-card__mode-tag{font-size:11px;color:var(--chat-fg-muted);margin-top:2px}.agentkit-chat__header-status,.agentkit-error,.agentkit-thread-list__newbtn{display:none!important}.tool-fold-group{margin:4px 0;border:1px solid var(--chat-border);border-radius:10px;background:var(--chat-bg-soft);overflow:hidden;max-width:720px}.tool-fold-group.has-running{border-color:var(--chat-accent-ring)}.tool-fold-summary{display:flex;align-items:center;gap:8px;width:100%;height:34px;padding:0 12px;border:none;background:transparent;font-family:inherit;font-size:12.5px;color:var(--chat-fg);cursor:pointer;text-align:left;transition:background .1s ease}.tool-fold-summary:hover{background:var(--chat-bg-hover)}.tool-fold-icon{width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--chat-accent)}.tool-fold-label{flex:1;font-weight:500;color:var(--chat-fg);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-fold-caret{color:var(--chat-fg-muted);font-size:10px;width:12px;text-align:center}.tool-fold-spinner{width:10px;height:10px;border-radius:50%;border:1.5px solid var(--chat-accent-ring);border-top-color:var(--chat-accent);animation:spin .8s linear infinite;flex-shrink:0}.tool-fold-body{padding:6px 10px 10px;display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--chat-border);background:var(--chat-bg)}.tool-fold-body>.tool-card,.tool-fold-body>.web-search-card,.tool-fold-body>.agent-outline-card{margin:0}.toast-container{position:fixed;top:16px;right:16px;z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none;max-width:min(420px,calc(100vw - 32px))}.toast{pointer-events:auto;cursor:pointer;padding:10px 14px;border-radius:8px;font-size:14px;line-height:1.4;color:var(--chat-fg);background:#fff;border:1px solid var(--chat-border);border-left-width:4px;box-shadow:0 8px 24px #00000014;text-align:left;font-family:inherit;animation:toast-in .18s ease-out}.toast:hover{background:#fafafa}.toast--success{border-left-color:#16a34a}.toast--error{border-left-color:#dc2626}.toast--info{border-left-color:#2563eb}@keyframes toast-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}