#zaiyu-sandbox-tool-button{position:fixed;right:24px;bottom:24px;z-index:2147483000;border:0;border-radius:999px;background:#111827;color:#fff;padding:12px 18px;font:600 13px/1.2 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;box-shadow:0 10px 30px rgba(0,0,0,.28);cursor:pointer}
#zaiyu-sandbox-tool-button:hover{transform:translateY(-1px)}
#zaiyu-sandbox-tool-overlay{position:fixed;inset:0;z-index:2147483001;background:rgba(15,23,42,.55);display:none;align-items:center;justify-content:center;padding:20px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
#zaiyu-sandbox-tool-overlay[data-open="true"]{display:flex}
#zaiyu-sandbox-tool-modal{width:min(640px,100%);max-height:85vh;overflow:auto;background:#fff;color:#111827;border-radius:18px;box-shadow:0 24px 80px rgba(0,0,0,.35);padding:24px}
#zaiyu-sandbox-tool-modal *{box-sizing:border-box}
.zst-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.zst-title{font-size:20px;font-weight:750;margin:0}.zst-sub{font-size:13px;line-height:1.55;color:#6b7280;margin:6px 0 0}.zst-close{border:0;background:transparent;font-size:24px;line-height:1;color:#6b7280;cursor:pointer;padding:2px 4px}.zst-row{display:flex;gap:10px;margin-top:20px}.zst-input{flex:1;min-width:0;border:1px solid #d1d5db;border-radius:10px;padding:11px 12px;font-size:14px;color:#111827;background:#fff}.zst-button{border:0;border-radius:10px;padding:11px 14px;font-size:13px;font-weight:700;cursor:pointer}.zst-primary{background:#111827;color:#fff}.zst-danger{background:#dc2626;color:#fff}.zst-muted{background:#f3f4f6;color:#374151}.zst-button:disabled{opacity:.45;cursor:not-allowed}.zst-status{margin-top:14px;border-radius:10px;padding:10px 12px;font-size:13px;line-height:1.5;background:#f3f4f6;color:#374151}.zst-status[data-kind="error"]{background:#fef2f2;color:#991b1b}.zst-status[data-kind="success"]{background:#ecfdf5;color:#065f46}.zst-results{display:grid;gap:10px;margin-top:14px}.zst-tester{width:100%;text-align:left;border:1px solid #e5e7eb;border-radius:12px;padding:12px;background:#fff;cursor:pointer}.zst-tester:hover,.zst-tester[data-selected="true"]{border-color:#111827;background:#f9fafb}.zst-name{font-size:14px;font-weight:700}.zst-meta{font-size:12px;color:#6b7280;margin-top:4px;line-height:1.45}.zst-selected{margin-top:16px;padding:14px;border:1px solid #e5e7eb;border-radius:12px;background:#f9fafb}.zst-warning{font-size:12px;line-height:1.55;color:#92400e;background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:10px 12px;margin-top:14px}.zst-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}@media(max-width:600px){#zaiyu-sandbox-tool-button{right:14px;bottom:14px}.zst-row{flex-direction:column}.zst-row .zst-button{width:100%}}