/* ============================================
 * TPA - AI 助手 (RAG) 专用样式
 * 暗色科技风，复用 common.css 设计令牌
 * ============================================ */

/* 内容区改为横向 flex：左聊天 / 右知识面板，整体占满高度、内部滚动 */
.rag-content {
  display: flex;
  flex-direction: row;
  gap: 0.14rem;
  padding: 0.14rem 0.18rem;
  height: 100%;
  min-height: 0;
  overflow: hidden;            /* 由内部卡片各自滚动 */
}

/* ============== 左侧聊天卡片 ============== */
.rag-chat {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.rag-chat::before, .rag-chat::after {
  content: ""; position: absolute; width: 0.14rem; height: 0.14rem; border: 2px solid var(--c-cyan);
}
.rag-chat::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.rag-chat::after  { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.rag-msgs {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0.18rem 0.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}

/* 空状态欢迎区 */
.rag-empty {
  margin: auto;
  text-align: center;
  max-width: 6rem;
  padding: 0.3rem;
}
.rag-empty .re-logo {
  font-size: 0.6rem;
  line-height: 1;
  margin-bottom: 0.16rem;
  filter: drop-shadow(0 0 0.16rem rgba(45, 223, 255, 0.5));
}
.rag-empty h2 {
  font-size: 0.26rem; font-weight: 700; color: var(--text-1);
  letter-spacing: 0.04rem; margin-bottom: 0.1rem;
  text-shadow: 0 0 0.1rem rgba(45, 223, 255, 0.4);
}
.rag-empty p { font-size: 0.15rem; color: var(--text-2); line-height: 1.7; margin-bottom: 0.2rem; }
.rag-empty .re-chips { display: flex; flex-wrap: wrap; gap: 0.1rem; justify-content: center; }

/* 消息 */
.msg { display: flex; gap: 0.12rem; max-width: 100%; align-items: flex-start; }
.msg.user { flex-direction: row-reverse; }
.msg .avatar {
  width: 0.4rem; height: 0.4rem; flex-shrink: 0;
  border-radius: 0.08rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.2rem; font-weight: 700;
}
.msg.bot .avatar { background: linear-gradient(135deg, #2ddfff, #3889ff); color: #002133; }
.msg.user .avatar { background: rgba(45, 223, 255, 0.12); border: 1px solid var(--line-strong); color: var(--c-cyan); }
.msg .col { display: flex; flex-direction: column; gap: 0.04rem; min-width: 0; }
.msg .name { font-size: 0.12rem; color: var(--text-3); }
.msg .bubble {
  padding: 0.12rem 0.16rem;
  border-radius: 0.08rem;
  font-size: 0.15rem;
  line-height: 1.75;
  white-space: pre-wrap;
  word-break: break-word;
}
.msg.bot .bubble {
  background: rgba(13, 33, 60, 0.72);
  border: 1px solid var(--line);
  max-width: 86%;
}
.msg.user .bubble {
  background: linear-gradient(135deg, #2ddfff 0%, #3889ff 100%);
  color: #002133;
  font-weight: 500;
  max-width: 78%;
}
.msg .bubble b { color: var(--c-cyan); font-weight: 700; }
.msg.user .bubble b { color: #002133; }
.msg .bubble ul { margin: 0.06rem 0; padding-left: 0.22rem; }
.msg .bubble li { margin: 0.03rem 0; }
.msg .bubble .src-ref { color: var(--c-purple); cursor: pointer; border-bottom: 1px dashed var(--c-purple); }

.msg .acts { display: flex; gap: 0.12rem; margin-top: 0.02rem; }
.msg .acts a { font-size: 0.12rem; color: var(--text-4); cursor: pointer; user-select: none; }
.msg .acts a:hover { color: var(--c-cyan); }

/* 来源引用条 */
.srcs { margin-top: 0.08rem; display: flex; flex-direction: column; gap: 0.06rem; max-width: 86%; }
.srcs-label { font-size: 0.12rem; color: var(--text-3); display: flex; align-items: center; gap: 0.06rem; }
.src {
  display: flex; align-items: center; gap: 0.1rem;
  padding: 0.06rem 0.1rem;
  background: rgba(4, 16, 31, 0.55);
  border: 1px solid var(--line);
  border-radius: 0.04rem;
  font-size: 0.12rem; color: var(--text-2);
  cursor: pointer; transition: all 0.2s;
}
.src:hover { border-color: var(--c-cyan); color: var(--text-1); }
.src .cat { color: var(--c-cyan); flex-shrink: 0; }
.src .title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.src .bar-wrap { width: 0.9rem; flex-shrink: 0; display: flex; align-items: center; gap: 0.06rem; }
.src .bar { height: 0.06rem; border-radius: 0.03rem; background: rgba(45, 223, 255, 0.08); overflow: hidden; flex: 1; }
.src .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--c-green), var(--c-cyan)); }
.src .sim { color: var(--c-green); font-variant-numeric: tabular-nums; width: 0.5rem; text-align: right; }

/* 打字动画 */
.typing { display: inline-flex; align-items: center; gap: 0.05rem; padding: 0.04rem 0; }
.typing i { width: 0.07rem; height: 0.07rem; border-radius: 50%; background: var(--c-cyan); animation: rag-blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: 0.2s; }
.typing i:nth-child(3) { animation-delay: 0.4s; }
@keyframes rag-blink { 0%, 100% { opacity: 0.25; } 50% { opacity: 1; } }

/* ============== 输入区 ============== */
.rag-composer {
  border-top: 1px solid var(--line);
  padding: 0.12rem 0.16rem;
  display: flex;
  gap: 0.1rem;
  align-items: flex-end;
  background: rgba(7, 25, 47, 0.55);
  flex-shrink: 0;
}
.rag-input {
  flex: 1;
  resize: none;
  background: rgba(4, 16, 31, 0.6);
  border: 1px solid var(--line);
  color: var(--text-1);
  border-radius: 0.06rem;
  padding: 0.1rem 0.12rem;
  font-size: 0.15rem;
  font-family: inherit;
  line-height: 1.6;
  max-height: 1.3rem;
  min-height: 0.44rem;
  overflow-y: auto;
  outline: none;
  transition: all 0.2s;
}
.rag-input:focus { border-color: var(--c-cyan); box-shadow: 0 0 0.08rem rgba(45, 223, 255, 0.3); }
.rag-input::placeholder { color: var(--text-3); }
.rag-send { flex-shrink: 0; }

/* ============== 右侧面板 ============== */
.rag-side {
  width: 3.4rem;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.14rem;
  min-height: 0;
  overflow-y: auto;
  padding-right: 0.02rem;
}
.rag-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  min-height: 0;
  box-shadow: var(--shadow-card);
  position: relative;
}
.rag-card .card-title { padding: 0.1rem 0.16rem; }
.rag-card .rc-body { padding: 0.12rem 0.14rem; overflow-y: auto; }

.kb-chips { display: flex; flex-wrap: wrap; gap: 0.08rem; }
.chip {
  padding: 0.06rem 0.12rem;
  border: 1px solid var(--line);
  border-radius: 0.2rem;
  font-size: 0.12rem;
  color: var(--text-2);
  cursor: pointer;
  background: rgba(45, 223, 255, 0.05);
  transition: all 0.2s;
  user-select: none;
}
.chip:hover { color: var(--c-cyan); border-color: var(--c-cyan); background: rgba(45, 223, 255, 0.12); }
.chip.active { color: #002133; background: linear-gradient(135deg, #2ddfff, #3889ff); border-color: transparent; font-weight: 600; }

.qlist { display: flex; flex-direction: column; gap: 0.06rem; }
.qitem {
  padding: 0.1rem 0.12rem;
  border: 1px solid var(--line);
  border-radius: 0.04rem;
  font-size: 0.13rem;
  color: var(--text-2);
  cursor: pointer;
  line-height: 1.5;
  transition: all 0.2s;
}
.qitem:hover { background: rgba(45, 223, 255, 0.06); color: var(--text-1); border-color: var(--line-strong); }
.qitem .qi-icon { color: var(--c-cyan); margin-right: 0.06rem; }

/* 检索来源面板 */
.rag-retrieve .rc-body { flex: 1; }
.retrieve-head { display: flex; align-items: center; gap: 0.08rem; font-size: 0.13rem; color: var(--text-2); margin-bottom: 0.1rem; }
.retrieve-head .cnt { margin-left: auto; color: var(--c-cyan); font-weight: 600; }
.retrieve-empty { font-size: 0.13rem; color: var(--text-3); line-height: 1.7; padding: 0.1rem 0; }
.retrieve-item {
  padding: 0.1rem 0.12rem;
  border: 1px solid var(--line);
  border-radius: 0.04rem;
  background: rgba(4, 16, 31, 0.5);
  margin-bottom: 0.08rem;
  cursor: pointer;
  transition: all 0.2s;
}
.retrieve-item:hover { border-color: var(--c-cyan); }
.retrieve-item .ri-top { display: flex; align-items: center; gap: 0.08rem; margin-bottom: 0.06rem; }
.retrieve-item .ri-cat { font-size: 0.11rem; color: var(--c-cyan); border: 1px solid var(--line); border-radius: 0.2rem; padding: 0.01rem 0.08rem; }
.retrieve-item .ri-sim { margin-left: auto; font-size: 0.12rem; color: var(--c-green); font-variant-numeric: tabular-nums; }
.retrieve-item .ri-title { font-size: 0.13rem; color: var(--text-1); font-weight: 600; margin-bottom: 0.04rem; }
.retrieve-item .ri-snippet { font-size: 0.12rem; color: var(--text-3); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.retrieve-item .ri-bar { height: 0.05rem; border-radius: 0.03rem; background: rgba(45, 223, 255, 0.08); overflow: hidden; margin-top: 0.08rem; }
.retrieve-item .ri-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--c-green), var(--c-cyan)); }

.kb-stat { display: flex; gap: 0.1rem; padding: 0.12rem 0.14rem; flex-wrap: wrap; }
.kb-stat .ks { flex: 1; min-width: 0.9rem; background: rgba(4, 16, 31, 0.5); border: 1px solid var(--line); border-radius: 0.04rem; padding: 0.1rem; text-align: center; }
.kb-stat .ks .v { font-size: 0.22rem; font-weight: 700; color: var(--c-cyan); }
.kb-stat .ks .l { font-size: 0.11rem; color: var(--text-3); margin-top: 0.02rem; }