:root{--bg:#f7f8fa;--bg-elev:#ffffff;--bg-sunken:#f1f3f6;--bg-hover:#eceff4;--bg-active:#e4e9f1;--border:#e2e6ec;--border-strong:#cfd6e0;--text:#161a20;--text-2:#5a6472;--text-3:#8b95a3;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-soft:#eaf0ff;--accent-ring:rgba(37,99,235,.25);--green:#12a150;--amber:#d97706;--red:#c9252d;--purple:#7c3aed;--green-soft:#e8f7ef;--amber-soft:#fdf4e3;--red-soft:#fdf2f2;--purple-soft:#f4ecfe;--radius:10px;--radius-sm:7px;--radius-lg:14px;--shadow-sm:0 1px 2px rgba(16,24,40,.06);--shadow:0 4px 16px rgba(16,24,40,.08);--shadow-lg:0 18px 50px rgba(16,24,40,.16);--sidebar-w:268px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);font-size:14px;line-height:1.6;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}.hidden{display:none!important}button{font-family:inherit;font-size:inherit;color:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}a{color:var(--accent);text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 14px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--bg-elev);color:var(--text);font-weight:500;transition:.16s;white-space:nowrap}.btn:hover{background:var(--bg-hover)}.btn:active{transform:translateY(.5px)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn.ghost{border-color:transparent;background:transparent}.btn.ghost:hover{background:var(--bg-hover)}.btn.danger{color:var(--red);border-color:#f0c4c6}.btn.danger:hover{background:#fdf3f3}.btn.block{width:100%}.btn.sm{height:30px;padding:0 10px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:7px;color:var(--text-2)}.icon-btn:hover{background:var(--bg-hover);color:var(--text)}.icon-btn.sm{width:22px;height:22px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field>span{font-size:13px;color:var(--text-2);font-weight:500}.field input,.field textarea,.field select{height:38px;padding:0 11px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--bg-elev);outline:none;transition:.15s;width:100%}.field textarea{height:auto;min-height:96px;padding:9px 11px;resize:vertical;line-height:1.65}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}.field-row{display:flex;align-items:center;justify-content:space-between;margin:-4px 0 16px}.check{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-2);cursor:pointer}.check input{width:15px;height:15px;accent-color:var(--accent);cursor:pointer}.link{font-size:13px;cursor:pointer;color:var(--accent)}.tag{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 8px;border-radius:6px;background:var(--bg-sunken);color:var(--text-2);font-size:12px;font-weight:500;white-space:nowrap}.tag.accent{background:var(--accent-soft);color:var(--accent)}.tag.green{background:#e6f7ee;color:var(--green)}.tag.amber{background:#fef4e2;color:var(--amber)}.tag.red{background:#fdeced;color:var(--red)}.tag.purple{background:#f2ecfe;color:var(--purple)}.auth-screen{display:grid;grid-template-columns:1.05fr .95fr;min-height:100vh}.auth-art{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;background:linear-gradient(150deg,#1e40af,#2563eb 45%,#1d4ed8);color:#fff;padding:48px}.auth-art-inner{position:relative;z-index:2;max-width:420px}.auth-grid{position:absolute;inset:0;z-index:1;opacity:.14;background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:radial-gradient(circle at 30% 40%,#000,transparent 75%);mask-image:radial-gradient(circle at 30% 40%,#000,transparent 75%)}.auth-art h1{font-size:34px;line-height:1.2;margin:0 0 6px;letter-spacing:-.8px}.auth-en{font-size:14px;font-weight:500;opacity:.82;margin:0 0 16px;letter-spacing:.5px}.auth-sub{opacity:.88;font-size:14.5px;margin:0 0 26px}.auth-points{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}.auth-points li{position:relative;padding-left:22px;opacity:.94;font-size:14px}.auth-points li:before{content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:50%;background:#ffffffd9}.auth-panel{display:flex;align-items:center;justify-content:center;padding:40px 24px;background:var(--bg-elev)}.auth-card{width:100%;max-width:368px}.auth-tabs{display:flex;gap:4px;margin-bottom:26px;border-bottom:1px solid var(--border)}.auth-tab{padding:0 2px 11px;margin-right:22px;font-weight:600;color:var(--text-3);border-bottom:2px solid transparent;margin-bottom:-1px}.auth-tab.active{color:var(--text);border-bottom-color:var(--accent)}.auth-msg{font-size:13px;min-height:18px;margin:10px 0 0;color:var(--red)}.auth-msg.ok{color:var(--green)}.auth-foot{font-size:12px;color:var(--text-3);margin-top:22px;text-align:center}.app{display:grid;grid-template-columns:var(--sidebar-w) 1fr;height:100vh;overflow:hidden}.app.collapsed{grid-template-columns:0 1fr}.sidebar{display:flex;flex-direction:column;min-width:0;background:var(--bg-elev);border-right:1px solid var(--border);overflow:hidden}.app.collapsed .sidebar{border-right:none}.side-head{display:flex;align-items:center;justify-content:space-between;padding:14px 12px 10px}.brand{display:flex;align-items:center;gap:9px;padding-left:4px}.brand-name{font-weight:650;font-size:15px;letter-spacing:-.2px;white-space:nowrap;display:flex;flex-direction:column;line-height:1.15}.brand-en{font-size:9.5px;font-weight:600;color:var(--text-3);letter-spacing:.6px}.new-chat{margin:4px 12px 12px;width:calc(100% - 24px)}.side-nav{display:flex;flex-direction:column;gap:1px;padding:0 8px}.nav-item{display:flex;align-items:center;gap:9px;height:34px;padding:0 10px;border-radius:7px;color:var(--text-2);font-size:13.5px;font-weight:500;white-space:nowrap;overflow:hidden;width:100%;text-align:left}.nav-item:hover{background:var(--bg-hover);color:var(--text)}.nav-item.active{background:var(--accent-soft);color:var(--accent)}.nav-item svg{flex:none}.side-section{flex:1;min-height:0;display:flex;flex-direction:column;margin-top:16px}.side-section-title{display:flex;align-items:center;justify-content:space-between;padding:0 16px 6px;font-size:11.5px;font-weight:600;color:var(--text-3);letter-spacing:.4px;text-transform:uppercase}.chat-list{flex:1;overflow-y:auto;padding:0 8px 8px}.chat-item{display:flex;align-items:center;gap:8px;padding:7px 9px;border-radius:7px;color:var(--text-2);font-size:13px;overflow:hidden;width:100%;text-align:left}.chat-item:hover{background:var(--bg-hover);color:var(--text)}.chat-item.active{background:var(--bg-active);color:var(--text);font-weight:500}.chat-item-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-item .icon-btn{opacity:0;flex:none}.chat-item:hover .icon-btn{opacity:1}.side-empty{padding:14px 12px;font-size:12.5px;color:var(--text-3);line-height:1.8}.side-foot{position:relative;border-top:1px solid var(--border);padding:8px}.account-btn{display:flex;align-items:center;gap:10px;width:100%;padding:7px 8px;border-radius:9px;text-align:left}.account-btn:hover{background:var(--bg-hover)}.avatar{flex:none;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px}.avatar.lg{width:44px;height:44px;font-size:17px}.account-meta{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px;line-height:1.35}.account-name{font-size:13px;font-weight:550;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-plan{font-size:11.5px;color:var(--text-3);line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.account-menu{position:absolute;left:8px;right:8px;bottom:62px;z-index:40;background:var(--bg-elev);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow-lg);padding:5px}.account-menu button{display:block;width:100%;text-align:left;padding:8px 10px;border-radius:6px;font-size:13px}.account-menu button:hover{background:var(--bg-hover)}.account-menu button.danger{color:var(--red)}.account-menu .sep{height:1px;background:var(--border);margin:4px 2px}.main{min-width:0;display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}.view-host{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.page{flex:1;overflow-y:auto;padding:28px 32px 60px}.page-narrow{max-width:900px;margin:0 auto}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}.page-title{font-size:20px;font-weight:650;margin:0 0 4px;letter-spacing:-.3px}.page-desc{font-size:13px;color:var(--text-2);margin:0}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}.card+.card{margin-top:14px}.card-title{font-size:14.5px;font-weight:600;margin:0 0 4px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.card-desc{font-size:12.5px;color:var(--text-2);margin:0 0 16px}.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}.kv{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--border);font-size:13px}.kv:last-child{border-bottom:none}.kv-k{color:var(--text-2);flex:none}.kv-v{font-weight:550;text-align:right;word-break:break-all}.chat-shell{display:flex;flex-direction:column;height:100%;min-height:0}.chat-top{display:flex;align-items:center;gap:10px;padding:11px 20px;border-bottom:1px solid var(--border);background:var(--bg-elev)}.chat-top-title{font-weight:600;font-size:14px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-top-meta{font-size:12px;color:var(--text-3);white-space:nowrap}.chat-scroll{flex:1;overflow-y:auto;padding:24px 0 8px}.chat-inner{max-width:780px;margin:0 auto;padding:0 24px;width:100%}.msg{display:flex;gap:13px;margin-bottom:22px;align-items:flex-start}.msg-avatar{flex:none;width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:650;margin-top:1px}.msg.user .msg-avatar{background:var(--bg-active);color:var(--text-2)}.msg.assistant .msg-avatar{background:var(--accent);color:#fff}.msg-body{flex:1;min-width:0;max-width:100%}.msg-role{font-size:12px;font-weight:600;color:var(--text-3);margin-bottom:5px}.msg-text{font-size:14.5px;line-height:1.75;word-wrap:break-word;overflow-wrap:anywhere}.msg-text p{margin:0 0 12px}.msg-text p:last-child{margin-bottom:0}.msg-text ul,.msg-text ol{margin:0 0 12px;padding-left:22px}.msg-text li{margin:3px 0}.msg-text h1,.msg-text h2,.msg-text h3,.msg-text h4{margin:18px 0 9px;line-height:1.4;font-weight:650}.msg-text h1{font-size:18px}.msg-text h2{font-size:16.5px}.msg-text h3{font-size:15px}.msg-text h4{font-size:14px}.msg-text code{font-family:var(--mono);font-size:.875em;background:var(--bg-sunken);padding:2px 5px;border-radius:4px;border:1px solid var(--border)}.msg-text pre{margin:0 0 12px;padding:0;border-radius:9px;overflow:hidden;background:#0f172a;border:1px solid #1e293b}.msg-text pre .pre-head{display:flex;align-items:center;justify-content:space-between;padding:7px 12px;background:#15213a;color:#94a3b8;font-size:11.5px;font-family:var(--mono);border-bottom:1px solid #1e293b}.msg-text pre .pre-head button{color:#94a3b8;font-size:11.5px;padding:1px 6px;border-radius:4px}.msg-text pre .pre-head button:hover{background:#1e293b;color:#e2e8f0}.msg-text pre code{display:block;padding:13px 14px;background:none;border:none;color:#e2e8f0;font-size:12.5px;line-height:1.65;overflow-x:auto;white-space:pre}.msg-text blockquote{margin:0 0 12px;padding:2px 0 2px 13px;border-left:3px solid var(--border-strong);color:var(--text-2)}.msg-text table{border-collapse:collapse;width:100%;margin:0 0 12px;font-size:13px}.msg-text th,.msg-text td{border:1px solid var(--border-strong);padding:6px 9px;text-align:left}.msg-text th{background:var(--bg-sunken);font-weight:600}.msg-text a{text-decoration:underline}.msg-actions{display:flex;gap:6px;margin-top:6px;opacity:0;transition:.15s;align-items:center}.msg:hover .msg-actions{opacity:1}.msg-sources{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}.typing{display:inline-flex;gap:4px;align-items:center;height:20px}.typing i{width:5px;height:5px;border-radius:50%;background:var(--text-3);animation:blink 1.3s infinite}.typing i:nth-child(2){animation-delay:.18s}.typing i:nth-child(3){animation-delay:.36s}@keyframes blink{0%,60%,to{opacity:.25;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}.tool-chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:13px;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:500;margin-bottom:9px}.tool-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:blink 1.2s infinite}.composer-wrap{padding:0 24px 18px;background:var(--bg)}.composer{max-width:780px;margin:0 auto}.composer-box{border:1px solid var(--border-strong);border-radius:var(--radius-lg);background:var(--bg-elev);box-shadow:var(--shadow-sm);transition:.16s;overflow:hidden}.composer-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}.composer-box textarea{display:block;width:100%;border:none;outline:none;resize:none;background:none;padding:14px 16px 6px;font-size:14.5px;line-height:1.6;max-height:220px;min-height:52px}.composer-bar{display:flex;align-items:center;gap:6px;padding:6px 9px 8px}.composer-bar .spacer{flex:1}.composer-hint{font-size:11.5px;color:var(--text-3);padding:6px 2px 0;display:flex;justify-content:space-between;gap:12px}.send-btn{width:32px;height:32px;border-radius:8px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center}.send-btn:hover{background:var(--accent-hover)}.send-btn:disabled{background:var(--border-strong);cursor:not-allowed}.send-btn.stop{background:var(--red)}.send-btn.stop:hover{background:#a81e25}.empty-chat{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px;text-align:center;overflow-y:auto}.empty-chat h2{font-size:22px;font-weight:650;margin:0 0 8px;letter-spacing:-.3px}.empty-chat p{color:var(--text-2);margin:0 0 26px;font-size:14px}.suggest-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;max-width:680px;width:100%}.suggest{text-align:left;padding:13px 15px;border:1px solid var(--border);border-radius:10px;background:var(--bg-elev);transition:.16s}.suggest:hover{border-color:var(--accent);background:var(--accent-soft)}.suggest b{display:block;font-size:13px;margin-bottom:2px}.suggest span{font-size:12px;color:var(--text-2);line-height:1.5}.list{display:flex;flex-direction:column;gap:8px}.list-row{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:9px;background:var(--bg-elev);transition:.15s}.list-row:hover{border-color:var(--border-strong);box-shadow:var(--shadow-sm)}.list-row-main{flex:1;min-width:0}.list-row-title{font-size:13.5px;font-weight:600;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;align-items:center;gap:8px}.list-row-sub{font-size:12px;color:var(--text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.list-row-act{display:flex;gap:5px;flex:none}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th{text-align:left;padding:9px 12px;background:var(--bg-sunken);color:var(--text-2);font-weight:600;font-size:12px;border-bottom:1px solid var(--border);white-space:nowrap}.data-table td{padding:9px 12px;border-bottom:1px solid var(--border);vertical-align:middle}.data-table tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:var(--bg-sunken)}.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elev)}.bar{height:6px;border-radius:3px;background:var(--bg-sunken);overflow:hidden;min-width:60px}.bar>i{display:block;height:100%;background:var(--accent);border-radius:3px;transition:width .3s}.bar>i.warn{background:var(--amber)}.bar>i.danger{background:var(--red)}.chart{display:flex;align-items:flex-end;gap:3px;height:90px;padding-top:8px}.chart .col{flex:1;background:var(--accent);border-radius:3px 3px 0 0;min-height:2px;opacity:.85;transition:.2s}.chart .col:hover{opacity:1}.chart-x{display:flex;justify-content:space-between;font-size:11px;color:var(--text-3);margin-top:6px}.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}.plan{border:1.5px solid var(--border);border-radius:var(--radius);padding:18px;background:var(--bg-elev);display:flex;flex-direction:column;transition:.18s}.plan:hover{border-color:var(--border-strong)}.plan.current{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}.plan-name{font-size:13px;font-weight:600;color:var(--text-2);letter-spacing:.3px;text-transform:uppercase;display:flex;align-items:center;gap:6px}.plan-price{font-size:26px;font-weight:680;margin:6px 0 2px;letter-spacing:-.8px}.plan-price small{font-size:13px;font-weight:500;color:var(--text-3)}.plan-feats{list-style:none;padding:0;margin:14px 0 16px;font-size:12.5px;color:var(--text-2);flex:1}.plan-feats li{padding:3px 0 3px 18px;position:relative}.plan-feats li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}.dropzone{border:1.5px dashed var(--border-strong);border-radius:var(--radius);padding:26px;text-align:center;color:var(--text-2);transition:.16s;cursor:pointer}.dropzone:hover,.dropzone.drag{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.toast-host{position:fixed;bottom:22px;left:50%;transform:translate(-50%);z-index:200;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}.toast{padding:10px 16px;border-radius:9px;background:#1f2937;color:#fff;font-size:13px;box-shadow:var(--shadow-lg);animation:toastIn .22s ease;max-width:420px}.toast.error{background:#b91c1c}.toast.ok{background:#15803d}@keyframes toastIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.modal-host{position:fixed;inset:0;z-index:150;display:flex;align-items:center;justify-content:center;padding:24px}.modal-backdrop{position:absolute;inset:0;background:#10182873;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.modal{position:relative;background:var(--bg-elev);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:520px;max-height:86vh;display:flex;flex-direction:column;animation:modalIn .2s ease}.modal.wide{max-width:760px}@keyframes modalIn{0%{opacity:0;transform:scale(.97) translateY(6px)}to{opacity:1;transform:none}}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--border)}.modal-head h3{margin:0;font-size:15.5px;font-weight:650}.modal-body{padding:18px;overflow-y:auto;flex:1}.modal-foot{padding:13px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap}.spinner{width:16px;height:16px;border:2px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.center-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--text-3);font-size:13px;padding:40px}@media(max-width:900px){.auth-screen{grid-template-columns:1fr}.auth-art{display:none}.app{grid-template-columns:1fr}.sidebar{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);z-index:100;transform:translate(-100%);transition:transform .22s ease;box-shadow:var(--shadow-lg)}.app.mobile-open .sidebar{transform:translate(0)}.app.collapsed .sidebar{transform:translate(-100%)}.page{padding:20px 16px 48px}.chat-inner{padding:0 14px}.composer-wrap{padding:0 12px 12px}.chat-top{padding:10px 14px}.mobile-menu-btn{display:inline-flex!important}}@media(min-width:901px){.mobile-menu-btn{display:none!important}}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#d3d9e2;border-radius:5px;border:3px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:#b9c1cd;background-clip:content-box;border:3px solid transparent}::-webkit-scrollbar-track{background:transparent}
