:root {
  --bg: #0f1115;
  --card: #181b22;
  --card-2: #1f232c;
  --text: #e8eaed;
  --muted: #9aa3af;
  --line: #2a2f3a;
  --brand: #ffe600;      /* 美客多黄 */
  --brand-ink: #2d3277;  /* 美客多蓝 */
  --ok: #2ecc71;
  --err: #ff6b6b;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #1a1f2b 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

.shell {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 20px 80px;
  display: grid;
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .35);
}

h1 { font-size: 22px; margin: 12px 0 6px; }

.muted { color: var(--muted); font-size: 14px; }
.hint { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }

code {
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  background: rgba(255, 255, 255, .06);
  padding: 1px 6px;
  border-radius: 6px;
  font-size: 13px;
}

.badge {
  display: inline-block;
  background: var(--brand);
  color: #1a1a1a;
  font-weight: 700;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: .3px;
}
.badge-ok { background: var(--ok); color: #06351a; }
.badge-error { background: var(--err); color: #3a0c0c; }

.form { display: grid; gap: 14px; margin-top: 18px; }

label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }

input, select {
  width: 100%;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  padding: 11px 12px;
  font-size: 14px;
  outline: none;
}
input:focus, select:focus { border-color: var(--brand); }

.checkbox { flex-direction: row; align-items: center; gap: 8px; display: flex; color: var(--text); }
.checkbox input { width: auto; }

.button {
  display: inline-block;
  text-align: center;
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--card-2);
  color: var(--text);
  padding: 11px 16px;
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
  transition: transform .04s ease, background .2s ease;
}
.button:hover { background: #262b35; }
.button:active { transform: translateY(1px); }
.button.primary { background: var(--brand); color: #1a1a1a; border-color: var(--brand); font-weight: 700; }
.button.ghost { background: transparent; }

.actions { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }

.callout {
  margin-top: 18px;
  padding: 14px;
  background: var(--card-2);
  border: 1px dashed var(--line);
  border-radius: 10px;
}
.callout-title { font-size: 12px; color: var(--muted); margin-bottom: 8px; }

.token-row { display: grid; gap: 4px; margin: 12px 0; }
.token-label { font-size: 12px; color: var(--muted); }
.token-value {
  display: flex; align-items: center; gap: 8px;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
}
.token-value code {
  flex: 1; background: transparent; padding: 0;
  word-break: break-all; white-space: pre-wrap;
}
.token-value.mono code { font-size: 12.5px; }

.copy {
  flex: none;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 12px;
  cursor: pointer;
}
.copy:hover { background: #2a2f3a; }

.switch { margin-top: 18px; font-size: 13px; }
.switch a { color: var(--brand); text-decoration: none; }

.raw { margin-top: 18px; }
.raw summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.raw pre {
  margin-top: 10px;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  overflow: auto;
  font-size: 12px;
}

.err { color: var(--err); font-size: 14px; }
.hidden { display: none; }