.chat-section {
  max-width: 640px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* チャット履歴エリア */
.chat-messages {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  max-height: 460px;
  overflow-y: auto;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 12px;
  margin-bottom: 1rem;
}

.chat-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.chat-row--left {
  justify-content: flex-start;
}

.chat-row--right {
  justify-content: flex-end;
}

/* 爬虫類アバター画像 */
.chat-avatar-img {
  width: 90px;
  height: auto;
  flex-shrink: 0;
  display: block;
}

/* 爬虫類の吹き出し（左） */
.speech-bubble--left {
  position: relative;
  background: #ffffff;
  border: 2px solid #5aab6e;
  border-radius: 16px;
  padding: 0.8rem 1rem;
  max-width: 70%;
  text-align: left;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  word-break: break-word;
}

.speech-bubble--left::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 14px;
  border-width: 8px 14px 8px 0;
  border-style: solid;
  border-color: transparent #5aab6e transparent transparent;
}

.speech-bubble--left::after {
  content: "";
  position: absolute;
  left: -10px;
  top: 16px;
  border-width: 6px 10px 6px 0;
  border-style: solid;
  border-color: transparent #ffffff transparent transparent;
}

/* ユーザーの吹き出し（右） */
.speech-bubble--right {
  position: relative;
  background: #dcf8c6;
  border: 2px solid #a5d6a7;
  border-radius: 16px;
  padding: 0.8rem 1rem;
  max-width: 70%;
  text-align: left;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  word-break: break-word;
}

.speech-bubble--right::before {
  content: "";
  position: absolute;
  right: -14px;
  top: 14px;
  border-width: 8px 0 8px 14px;
  border-style: solid;
  border-color: transparent transparent transparent #a5d6a7;
}

.speech-bubble--right::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 16px;
  border-width: 6px 0 6px 10px;
  border-style: solid;
  border-color: transparent transparent transparent #dcf8c6;
}

.speech-bubble--left p,
.speech-bubble--right p {
  margin: 0;
  line-height: 1.6;
  font-size: 0.95rem;
  color: #333;
}

/* 考え中... のアニメーション */
.chat-loading p {
  color: #999;
  animation: blink 1.2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* 質問フォーム */
.chat-form {
  display: flex;
  gap: 0.5rem;
}

.chat-input {
  flex: 1;
  padding: 0.6rem 0.8rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.chat-input:focus {
  border-color: #5aab6e;
}

.chat-submit {
  padding: 0.6rem 1.2rem;
  background: #5aab6e;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s;
}

.chat-submit:hover {
  background: #489059;
}

/* フォーム下部（警告・文字数カウンター） */
.chat-form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 1.4rem;
  margin-top: 0.4rem;
}

/* 個人情報警告メッセージ */
.chat-pii-warning {
  display: none;
  color: #e53e3e;
  font-size: 0.85rem;
  font-weight: 500;
  margin: 0;
}

.chat-pii-warning.is-visible {
  display: block;
}

.chat-input.has-pii-error {
  border-color: #e53e3e;
}

/* 文字数カウンター */
.chat-char-count {
  font-size: 0.8rem;
  color: #999;
  margin-left: auto;
}

.chat-char-count.is-over-limit {
  color: #e53e3e;
  font-weight: 500;
}