* { box-sizing: border-box; }
:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --error: #dc2626;
  --success: #059669;
  --radius: 12px;
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--error); font-size: 13px; min-height: 18px; }

.view.center {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}
.login-card {
  width: 100%;
  max-width: 360px;
}
.login-card h1 { margin: 0 0 4px; text-align: center; }
.login-card p { text-align: center; margin: 0 0 18px; }
.login-card label {
  display: block;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--muted);
}
.login-card input {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}
.login-card input:focus { outline: 2px solid var(--primary); border-color: var(--primary); }

button {
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 14px;
  background: #fff;
  transition: all 0.15s;
}
button.primary { background: var(--primary); color: #fff; }
button.primary:hover { background: var(--primary-dark); }
button.primary:disabled { background: #9ca3af; cursor: not-allowed; }
button.ghost { background: #fff; border-color: var(--border); color: var(--text); }
button.ghost:hover { border-color: var(--primary); color: var(--primary); }
button.block { width: 100%; padding: 11px; font-size: 15px; }
button.icon { padding: 6px 12px; font-size: 18px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.topbar h1 { margin: 0; font-size: 18px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.container {
  max-width: 960px;
  margin: 24px auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.lang-row {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
}
.lang-row label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: var(--muted);
  flex: 1;
  min-width: 180px;
}
.lang-row select {
  margin-top: 6px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: #fff;
}

.tabs { display: flex; gap: 8px; }
.tab {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px 8px 0 0;
  padding: 9px 18px;
  font-size: 14px;
}
.tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.tab-panel { display: none; border-top-left-radius: 0; }
.tab-panel.active { display: block; }

#fileInput { display: block; margin-bottom: 8px; }
textarea {
  width: 100%;
  min-height: 90px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  resize: vertical;
  margin-bottom: 10px;
  font-family: inherit;
}
.mic-row { display: flex; align-items: center; gap: 14px; }
#micBtn.recording { background: var(--error); }
#micBtn.recording:hover { background: #b91c1c; }

.results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.result-card { display: flex; flex-direction: column; }
.result-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.result-head h3 { margin: 0; font-size: 14px; color: var(--muted); }
.result-box {
  margin: 0;
  min-height: 90px;
  max-height: 360px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  font-size: 14px;
  line-height: 1.6;
}

.status {
  min-height: 22px;
  font-size: 13px;
  text-align: center;
}
.status.info { color: var(--muted); }
.status.error { color: var(--error); }
.status.success { color: var(--success); }

@media (max-width: 640px) {
  .results { grid-template-columns: 1fr; }
}