pre code.hljs{padding:1em;display:block;overflow-x:auto}code.hljs{padding:3px 5px}.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#79c0ff}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-comment,.hljs-code,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}@font-face{font-family:"LXGW 975 Hei SC";src:url(/fonts/lxgw-hei-sc-400.woff2)format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:"LXGW 975 Hei SC";src:url(/fonts/lxgw-hei-sc-700.woff2)format("woff2");font-weight:700;font-style:normal;font-display:swap}:root{--bg:#0f172a;--bg-soft:#1e293b;--bg-hover:#334155;--bg-inset:#0b1222;--border:#2a3a55;--border-soft:#1f2d44;--text:#e2e8f0;--text-dim:#94a3b8;--text-faint:#64748b;--accent:#6366f1;--accent-hover:#4f46e5;--accent-soft:#6366f129;--accent-ring:#6366f159;--user-bubble:#334155;--danger:#f87171;--danger-soft:#f871711f;--warn:#fbbf24;--warn-soft:#fbbf241f;--sidebar-w:268px;--radius:12px;--shadow:0 8px 30px #00000059;--code-bg:#0d1117}:root[data-theme=light]{--bg:#f8fafc;--bg-soft:#fff;--bg-hover:#e2e8f0;--bg-inset:#f1f5f9;--border:#cbd5e1;--border-soft:#e2e8f0;--text:#0f172a;--text-dim:#475569;--text-faint:#94a3b8;--accent:#4f46e5;--accent-hover:#4338ca;--accent-soft:#4f46e51a;--accent-ring:#4f46e538;--user-bubble:#e2e8f0;--danger:#dc2626;--danger-soft:#dc262614;--warn:#b45309;--warn-soft:#b453091a;--shadow:0 8px 30px #0f172a1f}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font:15px/1.65 "LXGW 975 Hei SC",-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}::selection{background:var(--accent-soft)}.app{height:100%;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-w);background:var(--bg-soft);border-right:1px solid var(--border-soft);flex-direction:column;flex-shrink:0;gap:10px;padding:14px;display:flex}.sidebar-backdrop{display:none}.conv-list{flex-direction:column;flex:1;gap:3px;margin:0 -4px;padding:0 4px;display:flex;overflow-y:auto}.conv-empty{color:var(--text-faint);padding:14px 8px;font-size:13px}.conv-item{cursor:pointer;color:var(--text-dim);border:1px solid #0000;border-radius:9px;align-items:center;gap:8px;padding:10px 11px;font-size:14px;transition:background .12s,color .12s;display:flex}.conv-item:hover{background:var(--bg-hover);color:var(--text)}.conv-item-active{background:var(--accent-soft);color:var(--text);border-color:#6366f140;font-weight:600}.conv-title{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.conv-del{opacity:0;flex-shrink:0;font-size:14px}.conv-item:hover .conv-del,.conv-item-active .conv-del{opacity:.5}.conv-del:hover{color:var(--danger);opacity:1!important}.sidebar-footer{color:var(--text-faint);text-align:center;padding-top:6px;font-size:12px}.main{background:var(--bg);flex-direction:column;flex:1;min-width:0;display:flex}.topbar{border-bottom:1px solid var(--border-soft);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172acc;flex-shrink:0;align-items:center;gap:10px;padding:12px 16px;display:flex}.topbar-title{text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:15px;font-weight:600;overflow:hidden}.menu-btn{display:none}.banner{background:var(--warn-soft);color:var(--warn);border-bottom:1px solid var(--border-soft);padding:11px 16px;font-size:13.5px}.messages{scroll-behavior:smooth;flex:1;padding:24px 16px 12px;overflow-y:auto}.empty-hint{text-align:center;max-width:460px;color:var(--text-dim);margin:14vh auto}.empty-hint h2{color:var(--text);margin:0 0 12px;font-size:22px;font-weight:700}.empty-hint p{margin:6px 0}.empty-hint-sub{color:var(--text-faint);margin-top:16px;font-size:13px}.msg{gap:14px;max-width:800px;margin:0 auto 24px;display:flex}.msg-role{background:var(--bg-hover);width:32px;height:32px;color:var(--text-dim);letter-spacing:.5px;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;font-weight:700;display:flex}.msg-user .msg-role{background:var(--accent);color:#fff}.msg-assistant .msg-role{background:var(--bg-soft);color:var(--text-dim);border:1px solid var(--border)}.msg-body{flex:1;min-width:0;padding-top:3px}.msg-user .msg-body>.msg-plain{background:var(--user-bubble);border-radius:var(--radius);max-width:100%;padding:9px 14px;display:inline-block}.msg-plain,.msg-streaming{white-space:pre-wrap;word-break:break-word}.msg-error{border:1px solid var(--danger);border-radius:var(--radius);background:var(--danger-soft);margin-top:6px;padding:11px 13px}.msg-error-title{color:var(--danger);margin-bottom:6px;font-size:14px;font-weight:600}.msg-error-detail{white-space:pre-wrap;word-break:break-word;color:var(--text);max-height:320px;margin:0;font-family:LXGW Bright Code GB,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;overflow:auto}.reasoning{color:var(--text-dim);margin-bottom:12px;font-size:13px}.reasoning summary{cursor:pointer;-webkit-user-select:none;user-select:none;color:var(--text-faint)}.reasoning summary:hover{color:var(--text-dim)}.reasoning-body{white-space:pre-wrap;border-left:2px solid var(--border);margin-top:8px;padding-left:12px}.typing-dots{gap:5px;padding-top:6px;display:inline-flex}.typing-dots i{background:var(--accent);border-radius:50%;width:7px;height:7px;animation:1.3s infinite blink}.typing-dots i:nth-child(2){animation-delay:.2s}.typing-dots i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.25;transform:translateY(0)}30%{opacity:1;transform:translateY(-2px)}}.markdown>:first-child{margin-top:0}.markdown>:last-child{margin-bottom:0}.markdown p{word-break:break-word;margin:0 0 12px}.markdown h1,.markdown h2,.markdown h3{margin:18px 0 10px;line-height:1.3}.markdown h1{font-size:1.4em}.markdown h2{font-size:1.25em}.markdown h3{font-size:1.1em}.markdown pre{background:var(--code-bg);border:1px solid var(--border);color:#c9d1d9;border-radius:10px;padding:13px 15px;font-size:13px;overflow-x:auto}.markdown code{font-family:LXGW Bright Code GB,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em}.markdown :not(pre)>code{background:var(--bg-hover);word-break:break-word;border-radius:5px;padding:2px 6px}.markdown table{border-collapse:collapse;margin:12px 0;display:block;overflow-x:auto}.markdown th,.markdown td{border:1px solid var(--border);padding:6px 11px}.markdown th{background:var(--bg-soft)}.markdown blockquote{border-left:3px solid var(--accent);color:var(--text-dim);margin:12px 0;padding-left:13px}.markdown ul,.markdown ol{margin:0 0 12px;padding-left:22px}.markdown a{color:#818cf8}.markdown img{border-radius:8px;max-width:100%}.markdown hr{border:none;border-top:1px solid var(--border);margin:16px 0}.composer{padding:10px 16px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--border-soft);background:var(--bg);flex-shrink:0}.composer-toolbar{flex-wrap:wrap;align-items:center;gap:12px;padding:0 2px 8px;display:flex}.model-picker select{appearance:none;background:var(--bg-soft);color:var(--text);border:1px solid var(--border);font:inherit;cursor:pointer;background-image:linear-gradient(45deg, transparent 50%, var(--text-dim) 50%), linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);background-position:calc(100% - 14px),calc(100% - 9px);background-repeat:no-repeat;background-size:5px 5px;border-radius:8px;max-width:220px;padding:6px 28px 6px 11px;font-size:13px}.model-picker select:focus{border-color:var(--accent);outline:none}.model-picker select:disabled{opacity:.5;cursor:not-allowed}.temp-picker{color:var(--text-dim);align-items:center;gap:8px;font-size:13px;display:inline-flex}.temp-label{color:var(--text-faint);font-family:LXGW Bright Code GB,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.temp-value{color:var(--accent);text-align:right;min-width:26px;font-family:LXGW Bright Code GB,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.temp-num{border:1px solid var(--border);background:var(--bg-soft);width:52px;color:var(--text);font:inherit;text-align:center;border-radius:6px;padding:4px 6px;font-family:LXGW Bright Code GB,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.temp-num:focus{border-color:var(--accent);outline:none}.temp-num::placeholder{color:var(--text-faint)}.temp-num::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.temp-num::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.temp-clear{color:var(--text-faint);cursor:pointer;background:0 0;border:none;padding:0 2px;font-size:12px;line-height:1}.temp-clear:hover{color:var(--danger)}.temp-picker input[type=range]{appearance:none;background:var(--bg-hover);cursor:pointer;border-radius:2px;outline:none;width:110px;height:4px}.temp-picker input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--accent);border:2px solid var(--bg);cursor:pointer;border-radius:50%;width:15px;height:15px}.temp-picker input[type=range]:disabled{opacity:.5}.composer-input{align-items:flex-end;gap:10px;display:flex}.composer textarea{resize:none;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-soft);color:var(--text);font:inherit;flex:1;max-height:200px;padding:12px 14px;line-height:1.5;transition:border-color .12s;overflow-y:auto}.composer textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring);outline:none}.composer textarea::placeholder{color:var(--text-faint)}.btn{cursor:pointer;font:inherit;border:none;border-radius:10px;flex-shrink:0;padding:10px 18px;font-weight:600;transition:background .12s,opacity .12s}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-send{background:var(--accent);color:#fff;padding:12px 20px}.btn-send:hover:not(:disabled){background:var(--accent-hover)}.btn-stop{background:var(--danger);color:#fff;padding:12px 20px}.btn-stop:hover{filter:brightness(1.08)}.btn-ghost{color:var(--text-dim);border:1px solid var(--border);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text)}.btn-new{color:var(--text-dim);border:1px dashed var(--border);text-align:center;background:0 0;border-radius:10px;width:100%;padding:11px}.btn-new:hover{background:var(--bg-hover);color:var(--text);border-color:var(--accent)}.btn-link{color:var(--accent);cursor:pointer;font:inherit;text-underline-offset:2px;background:0 0;border:none;padding:0;font-size:12.5px;text-decoration:underline}.btn-link:hover{color:#818cf8}.icon-btn{color:var(--text-dim);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px 9px;font-size:17px;line-height:1;transition:background .12s,color .12s}.icon-btn:hover{background:var(--bg-hover);color:var(--text)}.modal-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:50;background:#020617b3;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{background:var(--bg-soft);border:1px solid var(--border);width:100%;max-width:560px;max-height:90vh;box-shadow:var(--shadow);border-radius:16px;flex-direction:column;display:flex}.modal-header{border-bottom:1px solid var(--border-soft);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-header h2{margin:0;font-size:17px;font-weight:700}.modal-body{padding:20px;overflow-y:auto}.modal-footer{border-top:1px solid var(--border-soft);justify-content:flex-end;gap:10px;padding:14px 20px;display:flex}.field{margin-bottom:12px;display:block}.field-label{color:var(--text);margin-bottom:6px;font-size:13px;font-weight:600;display:block}.field input{border:1px solid var(--border);background:var(--bg);width:100%;color:var(--text);font:inherit;border-radius:9px;padding:10px 12px;transition:border-color .12s,box-shadow .12s}.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring);outline:none}.url-preview{background:var(--bg-inset);word-break:break-all;border:1px solid var(--border-soft);border-radius:8px;margin-bottom:8px;padding:9px 11px;font-family:LXGW Bright Code GB,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}.url-preview code{color:#818cf8}.url-preview-error{color:var(--danger);border-color:var(--danger);background:var(--danger-soft)}.url-preview-muted{color:var(--text-faint)}.hint{color:var(--text-dim);margin:0 0 16px;font-size:12.5px;line-height:1.55}.hint code{background:var(--bg-hover);border-radius:4px;padding:1px 5px;font-family:LXGW Bright Code GB,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.95em}.model-fetcher{margin-bottom:16px}.btn-fetch{padding:8px 14px;font-size:13px}.fetch-error{color:var(--danger);background:var(--danger-soft);border:1px solid var(--danger);word-break:break-word;border-radius:8px;margin-top:8px;padding:8px 10px;font-size:12.5px}.model-list{border:1px solid var(--border-soft);background:var(--bg-inset);border-radius:10px;max-height:220px;margin-top:10px;padding:6px;overflow-y:auto}.model-list-actions{background:var(--bg-inset);align-items:center;gap:12px;padding:4px 6px 8px;display:flex;position:sticky;top:0}.model-list-actions .hint{flex:1;margin:0}.model-item{cursor:pointer;border-radius:7px;align-items:center;gap:9px;padding:7px 8px;font-family:LXGW Bright Code GB,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;display:flex}.model-item:hover{background:var(--bg-hover)}.model-item input{accent-color:var(--accent);width:15px;height:15px}.model-item span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.messages::-webkit-scrollbar{width:9px}.conv-list::-webkit-scrollbar{width:9px}.modal-body::-webkit-scrollbar{width:9px}.model-list::-webkit-scrollbar{width:9px}.messages::-webkit-scrollbar-thumb{background:var(--bg-hover);background-clip:content-box;border:2px solid #0000;border-radius:5px}.conv-list::-webkit-scrollbar-thumb{background:var(--bg-hover);background-clip:content-box;border:2px solid #0000;border-radius:5px}.modal-body::-webkit-scrollbar-thumb{background:var(--bg-hover);background-clip:content-box;border:2px solid #0000;border-radius:5px}.model-list::-webkit-scrollbar-thumb{background:var(--bg-hover);background-clip:content-box;border:2px solid #0000;border-radius:5px}.messages::-webkit-scrollbar-thumb:hover{background:var(--border);background-clip:content-box}.conv-list::-webkit-scrollbar-thumb:hover{background:var(--border);background-clip:content-box}@media (width<=720px){.menu-btn{display:block}.sidebar{z-index:40;box-shadow:var(--shadow);transition:transform .22s;position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar-open{transform:translate(0)}.sidebar-backdrop{z-index:39;background:#00000080;display:block;position:fixed;inset:0}.messages{padding:18px 12px 8px}.msg{gap:10px;margin-bottom:20px}.model-picker select{max-width:150px}}