:root{
  --bg:#0b0d12; --panel:#12151c; --panel2:#171b24; --line:#232936;
  --text:#e6e9ef; --muted:#8b93a7; --accent:#5b8cff; --danger:#ff5c6c;
  --radius:12px;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:14px;}
.topbar{display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;border-bottom:1px solid var(--line);background:var(--panel);
  position:sticky;top:0;z-index:5;}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,#5b8cff,#7c5bff);
  display:grid;place-items:center;font-size:18px}
.title{font-weight:600;font-size:15px}
.sub{color:var(--muted);font-size:12px;margin-top:2px}
.actions{display:flex;align-items:center;gap:10px}
.count{color:var(--muted);font-size:12px;background:var(--panel2);
  padding:4px 10px;border-radius:20px;border:1px solid var(--line)}
.btn{background:var(--panel2);color:var(--text);border:1px solid var(--line);
  padding:7px 14px;border-radius:8px;cursor:pointer;font-size:13px;transition:.15s}
.btn:hover{border-color:var(--accent);color:#fff}
.btn.btn-danger:hover{border-color:var(--danger);color:var(--danger)}
.btn.sm{padding:4px 10px;font-size:12px}
main{padding:18px 22px;max-width:1200px;margin:0 auto}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px}
.empty{color:var(--muted);text-align:center;padding:40px;grid-column:1/-1}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;display:flex;flex-direction:column;gap:8px}
.card-top{display:flex;justify-content:flex-end}
.when{color:var(--muted);font-size:12px}
.row{display:flex;gap:10px;font-size:13px;line-height:1.5}
.row .k{color:var(--muted);min-width:48px;flex-shrink:0}
.row .v{word-break:break-all}
.code-big{margin:6px 0;padding:14px;text-align:center;font-size:2.2rem;font-weight:700;
  letter-spacing:6px;color:#fff;background:linear-gradient(135deg,#5b8cff,#7c5bff);
  border-radius:10px;cursor:pointer;user-select:all;box-shadow:0 4px 16px rgba(91,140,255,.25)}
.content{margin-top:4px;border-top:1px dashed var(--line);padding-top:10px;
  max-height:320px;overflow:auto}
.content.pre{white-space:pre-wrap;word-break:break-all;line-height:1.6;font-size:13px}
.content iframe{width:100%;min-height:220px;border:0;background:#fff;border-radius:8px}
.card-actions{display:flex;justify-content:flex-end;margin-top:4px}
#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);
  background:#1f2530;color:#fff;padding:10px 18px;border-radius:10px;border:1px solid var(--line);
  opacity:0;transition:.25s;pointer-events:none;z-index:20}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}