:root{--primary:#7c5cff;--primary-2:#22d3ee;--bg:#f7f7fb;--panel:#fff;--text:#16161d;--muted:#6b6b7b;--border:#e7e7ef;--ok:#16a34a;--warn:#d97706;--bad:#dc2626;--radius:14px;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;background:var(--bg);color:var(--text);font-size:14px}
a{color:var(--primary);text-decoration:none}
.muted{color:var(--muted)}.small{font-size:12px}.err{color:var(--bad);min-height:1em;margin:4px 0}
.btn{font:inherit;border:1px solid var(--border);background:var(--panel);color:var(--text);padding:8px 14px;border-radius:10px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;transition:.15s}
.btn:hover{border-color:var(--primary)}.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.primary{background:linear-gradient(135deg,var(--primary),#9b7bff);color:#fff;border:none}
.btn.primary:hover{filter:brightness(1.07)}.btn.danger{color:var(--bad)}.btn.ghost{background:transparent}
.btn.link{border:none;background:none;color:var(--muted)}.btn.block{width:100%;justify-content:center}.btn.sm{padding:4px 10px;font-size:12px;border-radius:8px}
input,textarea,select{font:inherit;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:9px 11px;outline:none}
input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(124,92,255,.12)}
.topbar{height:56px;display:flex;align-items:center;gap:24px;padding:0 20px;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20;flex-wrap:nowrap;min-width:0}
.logo{font-size:17px;color:var(--text);display:flex;align-items:center;gap:6px;flex:none;white-space:nowrap}.logo b{color:var(--primary)}
.logo-mark{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-size:16px;flex:none}
.topbar nav{display:flex;gap:4px;min-width:0;flex:1 1 auto;overflow-x:auto;scrollbar-width:none}
.topbar nav::-webkit-scrollbar{display:none}
.topbar nav a{color:var(--muted);padding:6px 12px;border-radius:8px;white-space:nowrap;flex:none;writing-mode:horizontal-tb}
.topbar nav a.on,.topbar nav a:hover{color:var(--text);background:#f0eefc}
.userbox{margin-left:auto;display:flex;align-items:center;gap:8px;flex:none;min-width:0}
.userbox .uname{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:8em}
.up-short{display:none}
.avatar{width:28px;height:28px;border-radius:50%;display:inline-grid;place-items:center;background:#ece8ff;color:var(--primary);font-weight:700}
.tag{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:999px;font-size:12px;background:#f1f1f6;color:var(--muted)}
.tag.ai{background:#e8f8ee;color:var(--ok)}.tag.backup{background:#fff4e0;color:var(--warn)}.tag.demo{background:#fdecec;color:var(--bad)}.tag.preset{background:#ece8ff;color:var(--primary)}
/* 首页 */
.hero{max-width:880px;margin:0 auto;padding:56px 20px 24px;text-align:center}
.hero h1{font-size:40px;line-height:1.2;margin:0 0 12px;letter-spacing:-.5px}
.hero h1 .grad{background:linear-gradient(90deg,var(--primary),var(--primary-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);font-size:16px;margin:0 0 28px}
.composer{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:14px;box-shadow:0 10px 40px rgba(60,40,140,.08);text-align:left}
.composer textarea{width:100%;border:none;resize:none;min-height:92px;font-size:16px;padding:6px;box-shadow:none}
.composer .bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;border-top:1px dashed var(--border);padding-top:10px}
.composer .bar .spacer{flex:1}
.opt{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;white-space:nowrap}
.opt select{padding:4px 8px;border-radius:8px;font-size:13px}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}
.chip{border:1px solid var(--border);background:var(--panel);border-radius:999px;padding:6px 12px;cursor:pointer;color:var(--muted);font-size:13px}.chip:hover{color:var(--primary);border-color:var(--primary)}
.features{max-width:1080px;margin:30px auto 0;padding:0 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.feature{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px}.feature b{display:block;margin-bottom:4px}
.section{max-width:1180px;margin:0 auto;padding:28px 20px}
.section h2{font-size:20px;margin:0 0 4px}.section .sub{color:var(--muted);margin:0 0 16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.pcard{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:.2s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(40,30,90,.1)}
.thumb{height:170px;overflow:hidden;position:relative;background:#f3f3f8;border-bottom:1px solid var(--border)}
.thumb iframe{width:400%;height:400%;transform:scale(.25);transform-origin:0 0;border:0;pointer-events:none;background:#fff}
.pcard .body{padding:12px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.pcard .title{font-weight:600;font-size:15px}.pcard .desc{color:var(--muted);font-size:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pcard .foot{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:auto}.pcard .foot .r{margin-left:auto;display:flex;gap:4px}
.empty{padding:40px;text-align:center;color:var(--muted);background:var(--panel);border:1px dashed var(--border);border-radius:var(--radius)}
/* 工作台 */
.ws{display:grid;grid-template-columns:minmax(340px,420px) 1fr;height:calc(100vh - 56px)}
.chat{display:flex;flex-direction:column;border-right:1px solid var(--border);background:var(--panel);min-height:0}
.chat-head{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}
.chat-head input{flex:1;min-width:0;border:1px solid transparent;font-weight:600;font-size:15px;padding:4px 6px}.chat-head input:hover{border-color:var(--border)}
.msgs{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:12px}
.msg{display:flex;gap:8px;align-items:flex-start}.msg .who{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex:none;font-size:15px;background:#f1effc}
.msg .bubble{background:#f6f6fa;border-radius:12px;padding:9px 12px;line-height:1.6;max-width:100%;min-width:0;overflow-wrap:anywhere}
.msg .name{font-size:12px;color:var(--muted);margin-bottom:2px}
.msg.user{flex-direction:row-reverse}.msg.user .bubble{background:linear-gradient(135deg,var(--primary),#9b7bff);color:#fff}
.msg .bubble ul{margin:6px 0 0;padding-left:18px}
.vchip{display:inline-flex;margin-top:6px;font-size:12px;padding:2px 8px;border-radius:6px;background:#fff;border:1px solid var(--border);cursor:pointer;color:var(--primary)}
.board-wrap{overflow-x:auto;max-width:100%;margin-top:8px;border-radius:8px;border:1px solid var(--border);background:#fff}
.board{width:max-content;min-width:100%;border-collapse:collapse;margin:0;font-size:11px;background:#fff}
.board th,.board td{padding:3px 6px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap;overflow-wrap:normal;word-break:keep-all}
.board th{font-size:10px;font-weight:600;color:var(--muted)}
.board tr.win td{background:#f3fbf6}
.progress{border:1px solid #ddd6ff;background:#faf9ff;border-radius:10px;padding:6px 8px;display:flex;flex-direction:column;gap:4px;max-width:100%;min-width:0;overflow:hidden}
.progress .row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;min-width:0}.progress .stage{font-weight:600;min-width:0;font-size:13px}.progress .timer{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--muted)}
.stepper{display:flex;flex-wrap:wrap;gap:2px;align-items:center;min-width:0;max-width:100%}
.step{padding:1px 5px;border-radius:999px;background:#f1f1f6;color:var(--muted);font-size:10px;line-height:1.45;white-space:nowrap}
.step.on{background:#ece8ff;color:var(--primary);font-weight:600}.step.ok{background:#e8f8ee;color:var(--ok)}
.step-arr{color:#c8c8d4;font-size:10px}
.spinner{width:12px;height:12px;border:2px solid #d9d2ff;border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;flex:none}@keyframes spin{to{transform:rotate(360deg)}}
.lanes{display:grid;gap:4px;min-width:0}.lane{background:#fff;border:1px solid var(--border);border-radius:8px;padding:4px 6px;min-width:0;max-width:100%}
.lane .lh{display:flex;align-items:center;gap:4px;font-size:11px;flex-wrap:wrap;min-width:0;line-height:1.3}.lane .lh b{font-size:12px}.lane .lh .st{margin-left:auto}
.lane .meta{display:flex;flex-wrap:wrap;gap:1px 8px;margin-top:1px;font-size:10px;color:var(--muted);font-family:var(--mono);line-height:1.3}
.lane .track{height:4px;border-radius:99px;background:#eee;overflow:hidden;margin-top:3px}.lane .track>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--primary-2));transition:width .25s}
.lane details.tail{margin-top:2px;min-width:0}.lane details.tail summary{cursor:pointer;font-size:11px;color:var(--muted);line-height:1.3}
.lane pre{margin:2px 0 0;max-height:calc(1.35em * 6);overflow:auto;font:11px/1.35 var(--mono);color:#555;white-space:pre-wrap;word-break:break-all;background:#fbfbfd;border-radius:6px;padding:3px 5px;max-width:100%}
.lane.done{border-color:#bfe8cd}.lane.failed{border-color:#f5c2c2}
.dlg h3{margin:0;font-size:18px}
.logs{font-size:11px;color:var(--muted);max-height:64px;overflow:auto;line-height:1.35}.logs div.warn{color:var(--warn)}
.composer2{border-top:1px solid var(--border);padding:10px;display:flex;flex-direction:column;gap:8px}
.composer2 textarea{width:100%;resize:none;min-height:64px}
.composer2 .bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.composer2 .bar .spacer{flex:1}
.quick{display:flex;gap:6px;flex-wrap:wrap}.quick .chip{padding:3px 9px;font-size:12px}
.stage-panel{display:flex;flex-direction:column;min-width:0;min-height:0}
.toolbar{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--border);background:var(--panel);flex-wrap:wrap}
.seg{display:inline-flex;background:#f1f1f6;border-radius:10px;padding:3px}.seg button{border:none;background:none;padding:5px 12px;border-radius:8px;cursor:pointer;font:inherit;color:var(--muted)}.seg button.on{background:#fff;color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.toolbar .spacer{flex:1}
.viewport{flex:1;min-height:0;background:repeating-conic-gradient(#f3f3f7 0 25%,#fafafc 0 50%) 0 0/20px 20px;display:flex;justify-content:center;align-items:stretch;padding:14px;position:relative}
.frame-wrap{background:#fff;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.08);overflow:hidden;width:100%;transition:width .25s;display:flex;flex-direction:column}
.frame-wrap.mobile{width:390px;max-width:100%}
.frame-wrap iframe{flex:1;border:0;width:100%;background:#fff}
.errbar{position:absolute;left:24px;right:24px;bottom:24px;background:#fff5f5;border:1px solid #f5c2c2;color:var(--bad);border-radius:10px;padding:8px 12px;display:flex;gap:8px;align-items:center;font-size:13px;box-shadow:0 6px 20px rgba(0,0,0,.08)}
.errbar span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.code{flex:1;min-height:0;overflow:auto;background:#0f1020;color:#d7d9f0;font:12px/1.6 var(--mono);margin:0;padding:14px;white-space:pre;counter-reset:l}
.versions{flex:1;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:8px}
.vrow{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:10px 12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.vrow.cur{border-color:var(--primary);box-shadow:0 0 0 2px rgba(124,92,255,.12)}.vrow .n{font-weight:700;width:40px}.vrow .note{flex:1;min-width:160px}.vrow.cand{border-style:dashed}
.placeholder{margin:auto;text-align:center;color:var(--muted)}
.dlg{border:none;border-radius:18px;padding:22px;width:min(400px,92vw);box-shadow:0 20px 60px rgba(0,0,0,.2)}.dlg::backdrop{background:rgba(20,16,40,.4)}
.dlg form{display:flex;flex-direction:column;gap:10px}.dlg label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
.tabs{display:flex;gap:4px;background:#f1f1f6;border-radius:10px;padding:3px}.tabs button{flex:1;border:none;background:none;padding:7px;border-radius:8px;cursor:pointer;font:inherit}.tabs button.on{background:#fff;font-weight:600}
.toast{position:fixed;left:50%;top:70px;transform:translateX(-50%);background:#16161d;color:#fff;padding:9px 16px;border-radius:10px;z-index:100;max-width:90vw;box-shadow:0 8px 30px rgba(0,0,0,.2)}
.mobile-tabs{display:none}
@media(max-width:900px){
  .features{grid-template-columns:1fr 1fr}.hero h1{font-size:30px}
  .ws{grid-template-columns:minmax(0,1fr);height:auto}.chat{height:auto;border-right:none;min-width:0}.msgs{max-height:55vh}
  .stage-panel{height:80vh}.topbar{gap:8px;padding:0 8px}.topbar nav a{padding:6px 8px;font-size:13px;white-space:nowrap}
  .logo-demo{display:none}
  .userbox .uname{max-width:4.2em}
  .up-full{display:none}.up-short{display:inline}
  .step{font-size:10px;padding:1px 4px}.lane pre{max-height:calc(1.35em * 6)}
  .progress .timer{margin-left:0}
}
@media(max-width:480px){
  .topbar{gap:4px;padding:0 6px;height:48px}
  .logo{font-size:14px;gap:4px}
  .logo-mark{width:24px;height:24px;font-size:14px}
  .logo-demo{display:none}
  .topbar nav{gap:2px}
  .topbar nav a{padding:4px 6px;font-size:12px;white-space:nowrap}
  .userbox{gap:4px}
  .userbox .uname{display:none}
  .userbox .avatar{width:24px;height:24px}
  .userbox .btn.sm{padding:4px 7px;font-size:12px}
  .up-full{display:none}.up-short{display:inline}
}