:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #e3e6ea;
  --text: #1c2733;
  --muted: #8a94a0;
  --interim: #9aa5b1;
  --accent: #2563eb;
  --accent-hover: #1d4fd7;
  --danger: #dc2626;
  --ok: #16a34a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  padding: 16px 28px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.brand h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 650;
}

.brand .sub {
  font-size: 14px;
  color: var(--muted);
}

.controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.field {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--muted);
}

.field select {
  padding: 7px 10px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}

.hotwords-input {
  width: 230px;
  padding: 7px 10px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}

.hotwords-input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: -1px;
}

.hotwords-input:disabled { opacity: 0.6; }

.chip {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  user-select: none;
}

.chip input { margin: 0; cursor: pointer; }

.meter {
  width: 80px;
  height: 10px;
  border-radius: 999px;
  background: #e9edf1;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--ok), #eab308, var(--danger));
  transition: width 80ms linear;
}

.btn {
  padding: 10px 26px;
  font-size: 17px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

.btn.primary:hover { background: var(--accent-hover); }

.btn.primary.active {
  background: var(--danger);
}

.btn.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
}

.btn.ghost:hover { color: var(--text); }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.banner {
  margin: 14px 28px 0;
  padding: 12px 16px;
  font-size: 15px;
  border-radius: 10px;
  background: #fef2f2;
  color: var(--danger);
  border: 1px solid #fecaca;
}

.banner.hidden { display: none; }

.cards {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  padding: 18px 28px;
  min-height: 0;
}

@media (max-width: 1200px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .cards { grid-template-columns: 1fr; }
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  min-height: 240px;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.card-head .name { font-weight: 600; font-size: 17px; }

.card-head .spacer { flex: 1; }

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #cbd2d9;
}

.dot.connecting { background: #f59e0b; animation: pulse 1s infinite; }
.dot.listening { background: var(--ok); }
.dot.error { background: var(--danger); }
.dot.closed { background: #cbd2d9; }
.dot.ref { background: var(--accent); }

@keyframes pulse { 50% { opacity: 0.35; } }

.latency {
  font-size: 13px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  min-width: 58px;
  text-align: right;
}

.card-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
  font-size: 19px;
  line-height: 1.7;
  word-break: break-word;
}

.card-body .final-line {
  color: var(--text);
  min-height: 1.7em;
}

.card-body .final-line.latest {
  color: var(--accent);
  background: #eef4ff;
  border-radius: 6px;
  padding: 0 8px;
  margin: 0 -8px;
}

.card-body .interim {
  color: var(--interim);
  font-style: italic;
}

.card-body .interim:empty { display: none; }

.card-body .placeholder { color: #c4ccd4; display: block; }

.card-foot {
  padding: 8px 16px;
  font-size: 14px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  min-height: 32px;
  display: flex;
  align-items: center;
}

.card-foot.error { color: var(--danger); }

/* 参考文本列 */
.card.reference {
  background: #f7faff;
  border-color: #c7d9f7;
}

.script-body {
  display: flex;
  align-items: center;
  font-size: 20px;
  font-weight: 550;
  color: #16324f;
}

.foot-spacer { flex: 1; }

.btn.small {
  padding: 6px 14px;
  font-size: 14px;
}

.footnote {
  padding: 10px 28px 16px;
  font-size: 14px;
  color: var(--muted);
}