/* 护眼浅绿色背景，简洁风格 */
:root{
  --bg: #e8f5e9;
  --card: #ffffff;
  --accent: #ff5722;
  --muted: #8a8a8a;
  --dark: #222;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: "Microsoft Yahei", Arial, sans-serif;
  background: var(--bg);
  color:var(--dark);
  -webkit-font-smoothing:antialiased;
}
.container{
  max-width:920px;
  margin:28px auto;
  padding:20px;
}
header h1{
  margin:0 0 8px 0;
  color:var(--accent);
  font-size:24px;
}
header small{font-size:12px;color:var(--muted)}
.hint{background:rgba(255,255,255,0.6);padding:10px;border-radius:8px;margin:10px 0 18px;color:#333}

.input-area label{display:block;margin-bottom:8px;font-weight:600}
textarea#input{width:100%;height:200px;padding:12px;border-radius:8px;border:1px solid rgba(0,0,0,0.08);font-size:14px;resize:vertical;background:rgba(255,255,255,0.95)}
.buttons{margin-top:10px}
button{
  background:var(--accent);
  color:white;border:0;padding:8px 14px;border-radius:8px;font-weight:600;cursor:pointer;margin-right:10px;
}
button.muted{background:#7d7d7d}
.output-area{
  margin-top:18px;
  background:var(--card);
  padding:14px;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,0.06)
}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.field{display:flex;align-items:flex-start;gap:8px;padding:8px;border:1px solid rgba(0,0,0,0.04);border-radius:8px;background:#fafafa}
.field label{min-width:110px;font-weight:700;color:var(--muted)}
.value{flex:1;white-space:pre-wrap}
.value.long{min-height:48px}
.copyField{background:#2196f3}
#copyAll{width:100%;height:120px;padding:10px;border-radius:8px;border:1px solid rgba(0,0,0,0.06);margin-top:8px}
.note{font-size:12px;color:var(--muted);margin-top:8px}
footer{margin-top:14px;color:var(--muted);font-size:13px}
@media (max-width:720px){
  .fields{grid-template-columns:1fr;overflow:auto}
}