:root{
  --ink:#16202b; --ink2:#46535f; --ink3:#7c8893;
  --bg:#eef1f4; --panel:#f7f9fa; --card:#ffffff;
  --line:#dde3e8; --line2:#c6cfd6;
  --navy0:#0a0c2e; --navy1:#181c52; --red:#e2382c;
  --link:#1463b8; --danger:#c2402e; --radius:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:14px}
button{font-family:inherit}
input,select,textarea{font-family:inherit}
.topbar{background:linear-gradient(120deg,var(--navy0),var(--navy1));color:#fff;padding:13px 24px;display:flex;justify-content:space-between;align-items:center}
.topbar .logo{font-size:15px;font-weight:700;display:flex;align-items:center;gap:10px}
.topbar .logo a{color:#fff;text-decoration:none}
.topbar .logo a b{color:var(--red)}
.topbar .logo small{font-weight:400;opacity:.6;font-size:12px}
.topbar-actions{display:flex;gap:8px}
.topbar-actions button{font-size:12px;padding:7px 14px;background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.22);border-radius:7px;cursor:pointer}
.topbar-actions button:hover{background:rgba(255,255,255,.18)}
.layout{display:grid;grid-template-columns:380px 1fr;height:calc(100vh - 51px)}
@media(max-width:920px){.layout{grid-template-columns:1fr;height:auto}.stage{min-height:640px}}
.config{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden}
.tabs{display:flex;border-bottom:1px solid var(--line);background:var(--card)}
.tab{flex:1;font-size:12.5px;font-weight:500;padding:12px 0;border:none;background:none;color:var(--ink3);cursor:pointer;border-bottom:2px solid transparent}
.tab.on{color:var(--ink);border-bottom-color:var(--red)}
.scroll{flex:1;overflow-y:auto;padding:18px}
.pane{display:none}
.pane.on{display:block}
.sec{margin-bottom:20px}
.sec-t{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--ink3);margin-bottom:9px}
.f{margin-bottom:10px}
.f label{display:block;font-size:12px;color:var(--ink2);margin-bottom:4px}
.f input[type=text],.f input[type=number],.f select,.f textarea{width:100%;font-size:13px;padding:8px 10px;border:1px solid var(--line2);border-radius:7px;background:var(--card);color:var(--ink);outline:none}
.f input:focus,.f textarea:focus,.f select:focus{border-color:var(--ink2)}
.f textarea{resize:vertical;min-height:54px;line-height:1.5}
.colors{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.swatch{display:flex;align-items:center;gap:9px;padding:8px 10px;border:1px solid var(--line2);border-radius:7px;background:var(--card);cursor:pointer}
.swatch input{width:30px;height:30px;border:none;border-radius:6px;cursor:pointer;background:none;padding:0}
.swatch span{font-size:12px;color:var(--ink2)}
.qcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px;margin-bottom:10px}
.qhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.qnum{font-size:10.5px;font-weight:600;color:var(--ink3);background:var(--panel);padding:3px 10px;border-radius:100px;border:1px solid var(--line)}
.xbtn{background:none;border:none;color:var(--ink3);cursor:pointer;font-size:16px;line-height:1;padding:0 4px}
.xbtn:hover{color:var(--danger)}
.optrow{display:flex;gap:6px;margin-bottom:5px;align-items:center}
.optrow input[type=text]{flex:1;font-size:12px;padding:6px 8px;border:1px solid var(--line);border-radius:6px;background:var(--panel)}
.optrow input[type=number]{width:54px;font-size:12px;padding:6px 4px;text-align:center;border:1px solid var(--line);border-radius:6px;background:var(--panel)}
.optrow select{font-size:11.5px;padding:6px 4px;border:1px solid var(--line);border-radius:6px;background:var(--panel);max-width:110px}
.opthdr{display:grid;gap:6px;margin-bottom:4px}
.opthdr span{font-size:10px;color:var(--ink3)}
.addbtn{font-size:12px;color:var(--link);background:none;border:none;cursor:pointer;padding:3px 0}
.addbtn:hover{text-decoration:underline}
.hint{font-size:12px;color:var(--ink2);line-height:1.55;margin-bottom:12px;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.actions{padding:14px 18px;border-top:1px solid var(--line);background:var(--card);display:flex;flex-direction:column;gap:8px}
.genbtn{font-size:13px;font-weight:600;padding:11px;background:var(--red);color:#fff;border:none;border-radius:8px;cursor:pointer}
.genbtn:hover{background:#c52d22}
.tpls{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.tpls button{font-size:11px;padding:7px 2px;background:var(--panel);border:1px solid var(--line);border-radius:7px;cursor:pointer;color:var(--ink2)}
.tpls button:hover{border-color:var(--line2);color:var(--ink)}
.stage{display:flex;flex-direction:column;overflow:hidden}
.stagebar{display:flex;justify-content:space-between;align-items:center;padding:11px 22px;border-bottom:1px solid var(--line);background:var(--card)}
.stagebar span{font-size:11px;font-weight:600;color:var(--ink3);text-transform:uppercase;letter-spacing:.08em}
.modes{display:flex;gap:4px}
.mode{font-size:12px;padding:6px 14px;border:1px solid var(--line);background:none;color:var(--ink3);cursor:pointer;border-radius:100px}
.mode.on{background:var(--navy0);color:#fff;border-color:var(--navy0)}
.viewport{flex:1;overflow-y:auto;padding:34px 24px;display:flex;justify-content:center;align-items:flex-start}
.codeview{display:none;flex:1;overflow-y:auto;padding:18px 22px}
.codeview pre{font-size:11px;font-family:ui-monospace,'SF Mono',Menlo,Consolas,monospace;background:var(--card);padding:16px;border-radius:var(--radius);white-space:pre-wrap;word-break:break-all;color:var(--ink2);border:1px solid var(--line);line-height:1.6}
.copybtn{font-size:12px;padding:6px 14px;background:var(--card);border:1px solid var(--line2);border-radius:100px;cursor:pointer;color:var(--ink2);margin-bottom:10px}
.copybtn:hover{color:var(--ink)}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--navy0);color:#fff;font-size:13px;padding:11px 22px;border-radius:100px;opacity:0;transition:opacity .25s;pointer-events:none;z-index:50}
.toast.show{opacity:1}