:root{color-scheme:light;--ink: #16213a;--muted: #5b6b8c;--line: #d7deec;--accent: #1d4ed8;--panel: #ffffff;--bg: #eef2f9}*{box-sizing:border-box}body{margin:0;padding:1.25rem clamp(1rem,4vw,2.5rem) 3rem;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--ink)}header h1{margin:0 0 .25rem;font-size:1.4rem}header p{margin:0 0 1rem;max-width:62rem;color:var(--muted)}code{background:#e3e9f6;padding:.1rem .3rem;border-radius:4px;font-size:.9em}.controls{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .75rem;padding:.75rem 1rem;background:var(--panel);border:1px solid var(--line);border-radius:10px;margin-bottom:1rem}.controls label{font-weight:600;font-size:.9rem}.controls select,.controls button{font:inherit;padding:.35rem .6rem;border:1px solid var(--line);border-radius:8px;background:#fff}.controls button{background:var(--accent);border-color:var(--accent);color:#fff;cursor:pointer}main{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,2fr);gap:1rem;align-items:start}@media(max-width:900px){main{grid-template-columns:1fr}}.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:.9rem 1rem 1rem}.panel h2{margin:0 0 .6rem;font-size:1rem}.hint{color:var(--muted);font-size:.85rem;font-weight:400}#frame-slot iframe{width:100%;height:320px;border:1px dashed var(--line);border-radius:8px;background:#fff}pre{margin:0;padding:.6rem;background:#0f172a;color:#d8e6ff;border-radius:8px;font-size:.78rem;line-height:1.45;overflow-x:auto;white-space:pre-wrap;word-break:break-word}.result-status{margin:0 0 .5rem;font-weight:600}.log-panel{margin-top:1rem}#log{list-style:none;margin:0;padding:0;max-height:26rem;overflow-y:auto;display:flex;flex-direction:column;gap:.5rem}#log li{border:1px solid var(--line);border-radius:8px;padding:.5rem .6rem;background:#fbfcff}#log li[data-direction=in]{border-left:4px solid #059669}#log li[data-direction=out]{border-left:4px solid var(--accent)}#log li[data-direction=http]{border-left:4px solid #b45309}.log-head{font-size:.85rem;margin-bottom:.35rem}.tag{display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.72rem;font-weight:700;padding:.1rem .4rem;border-radius:999px;background:#e3e9f6;color:var(--ink)}