* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: #f0f4f8;
  color: #1f2937;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: linear-gradient(135deg, #0f766e, #115e59);
  color: #fff;
}

.topbar h1 { font-size: 20px; font-weight: 600; }

.user-info { display: flex; align-items: center; gap: 12px; }

main {
  max-width: 900px;
  margin: 24px auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background: #fff;
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, .08);
}

.panel h2 {
  font-size: 16px;
  margin-bottom: 12px;
  color: #0f766e;
  border-left: 4px solid #0f766e;
  padding-left: 10px;
}

.hint { font-size: 13px; color: #6b7280; margin-bottom: 14px; line-height: 1.6; }

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

input {
  flex: 1 1 180px;
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  transition: border-color .15s;
}

input:focus { border-color: #0f766e; }

.btn {
  padding: 10px 18px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  background: #fff;
  color: #374151;
  font-size: 14px;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}

.btn:hover { border-color: #0f766e; color: #0f766e; }

.btn-primary { background: #0f766e; border-color: #0f766e; color: #fff; }
.btn-primary:hover { background: #115e59; color: #fff; }

.btn-sm { padding: 6px 12px; font-size: 13px; }

.result {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
}

.result.ok { color: #047857; }
.result.err { color: #b91c1c; }

.raw {
  background: #0f172a;
  color: #a5f3fc;
  border-radius: 8px;
  padding: 14px;
  font-size: 12px;
  line-height: 1.6;
  overflow-x: auto;
  max-height: 320px;
  overflow-y: auto;
}

.hidden { display: none; }