body {
  background: #f8f9fa;
}

.su-card {
  border: 0;
  border-radius: 1rem;
  box-shadow: 0 0.5rem 1.25rem rgba(0, 0, 0, 0.08);
}

.su-label {
  font-size: 0.85rem;
  color: #6c757d;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.su-word {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.1;
}

.su-pinyin {
  font-size: 1.15rem;
  color: #6c757d;
}

.su-meaning {
  font-size: 1.1rem;
  font-weight: 500;
}

.su-example-cn {
  font-size: 1.3rem;
  font-weight: 600;
}

.su-example-en {
  color: #6c757d;
  margin-top: 0.25rem;
}

.su-badge {
  display: inline-block;
  background: #e9f2ff;
  color: #0d6efd;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
}

.su-lia-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
}

.su-lia-bubble {
  background: #eef6ff;
  border-left: 4px solid #0d6efd;
  padding: 1rem;
  border-radius: 0.75rem;
  white-space: pre-wrap;
  min-height: 220px;
}

.su-textarea {
  min-height: 120px;
  border-radius: 0.75rem;
}

.su-hint,
.su-status {
  font-size: 0.95rem;
  color: #495057;
}

.hanzi-box {
  width: 220px;
  height: 220px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid #dee2e6;
  border-radius: 1rem;
}

@media (max-width: 575.98px) {
  .su-word {
    font-size: 2.4rem;
  }

  .hanzi-box {
    width: 190px;
    height: 190px;
  }
}

.su-chat-input {
  min-height: 90px;
  border-radius: 0.75rem;
}