:root {
  --wx-green: #07C160;
  --wx-green-dark: #06AD56;
  --bg: #ededed;
  --panel: #ffffff;
  --text: #1f2329;
  --sub: #8a8f99;
  --line: #e5e5e5;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

.app {
  display: flex;
  height: 100vh;
  max-width: 1200px;
  margin: 0 auto;
  background: var(--panel);
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.08);
}

/* ===== 侧栏 ===== */
.sidebar {
  width: 260px;
  flex: none;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  background: #f7f7f7;
}

.sidebar-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 14px;
  border-bottom: 1px solid var(--line);
}

.sidebar-title { font-size: 17px; font-weight: 600; }

.sidebar-badge {
  background: linear-gradient(135deg, #07C160, #2fd67f);
  color: #fff;
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 10px;
}

.chat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  border-bottom: 1px solid #f0f0f0;
  background: #fff;
}

.chat-item.active {
  background: #e8f7ee;
  box-shadow: inset 3px 0 0 var(--wx-green);
}

.chat-list {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.chat-item .chat-meta { flex: 1; min-width: 0; }

.chat-name {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.ai-tag {
  font-style: normal;
  font-size: 10px;
  color: var(--wx-green);
  border: 1px solid var(--wx-green);
  border-radius: 4px;
  padding: 0 4px;
}

.chat-preview {
  font-size: 12px;
  color: var(--sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.chat-time { font-size: 11px; color: var(--sub); align-self: flex-start; padding-top: 4px; }

.sidebar-foot {
  margin-top: auto;
  padding: 12px 14px;
  font-size: 11px;
  color: var(--sub);
  border-top: 1px solid var(--line);
}

/* ===== 头像 ===== */
.avatar {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
}

.avatar-xiaoxi {
  background: linear-gradient(135deg, #ff9a9e, #fecfef);
  border: 1px solid #fbb6ce;
}

.avatar-xiaoyue {
  background: linear-gradient(135deg, #7f8fd8, #b5c6f0);
  border: 1px solid #a5b4e0;
}

.avatar-xiaoya {
  background: linear-gradient(135deg, #f2994a, #f2c14d);
  border: 1px solid #e8b44f;
}

/* ===== 主区 ===== */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.chat-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.topbar-info { flex: 1; }

.topbar-name { font-size: 16px; font-weight: 600; }

.topbar-status { font-size: 12px; color: var(--sub); display: flex; align-items: center; gap: 5px; }

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--wx-green);
  display: inline-block;
}

.clear-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--sub);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 14px;
  cursor: pointer;
}

.clear-btn:hover { color: #d9534f; border-color: #d9534f; }

/* ===== 消息区 ===== */
.messages {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  padding: 18px 16px;
  background: #f5f5f5;
}

.msg {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  animation: pop 0.18s ease-out;
}

@keyframes pop {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.msg .avatar { width: 34px; height: 34px; font-size: 15px; }

.msg-body { max-width: 68%; }

.msg.bot .msg-body { order: 2; }

.msg.user { flex-direction: row-reverse; }

.msg.user .msg-body { order: 2; }

.bubble {
  padding: 9px 13px;
  border-radius: 10px;
  font-size: 15px;
  line-height: 1.55;
  word-break: break-word;
  white-space: pre-wrap;
}

.msg.bot .bubble {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-top-left-radius: 2px;
}

.msg.user .bubble {
  background: var(--wx-green);
  color: #fff;
  border-top-right-radius: 2px;
}

.msg-time {
  font-size: 10px;
  color: #b0b0b0;
  margin-top: 3px;
}

.msg.user .msg-time { text-align: right; }

.typing .bubble::after {
  content: "…";
  animation: blink 1s infinite;
}

@keyframes blink { 50% { opacity: 0.2; } }

/* ===== 输入栏 ===== */
.inputbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  background: #f7f7f7;
}

.mic-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 18px;
  cursor: pointer;
  flex: none;
}

.mic-btn.recording {
  background: #ff4d4f;
  border-color: #ff4d4f;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  50% { transform: scale(1.08); }
}

.text-input {
  flex: 1;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 0 16px;
  font-size: 15px;
  outline: none;
  background: #fff;
  min-width: 0;
}

.text-input:focus { border-color: var(--wx-green); }

.send-btn {
  height: 40px;
  padding: 0 18px;
  border: none;
  border-radius: 20px;
  background: var(--wx-green);
  color: #fff;
  font-size: 15px;
  cursor: pointer;
  flex: none;
}

.send-btn:hover { background: var(--wx-green-dark); }

.recording-tip {
  position: fixed;
  bottom: 84px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  font-size: 14px;
  padding: 10px 18px;
  border-radius: 20px;
  z-index: 99;
}

.hidden { display: none; }

/* ===== 头像照片 ===== */
.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

/* ===== 朋友圈 ===== */
.sidebar-foot {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.moments-entry {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
}

.moments-entry:hover { border-color: var(--wx-green); color: var(--wx-green); }

.sidebar-note { font-size: 11px; color: var(--sub); }

.moments-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: #f2f2f2;
}

.moments-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: #4b4b4b;
  color: #fff;
}

.moments-back {
  border: none;
  background: transparent;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
  padding: 0 2px;
}

.moments-title { font-size: 17px; font-weight: 600; flex: 1; }

.moments-refresh {
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: transparent;
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 12px;
  cursor: pointer;
}

.moments-list {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  padding: 14px 12px 24px;
}

.moment-card {
  display: flex;
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid #e3e3e3;
}

.moment-card .avatar { width: 38px; height: 38px; border-radius: 6px; }

.moment-body { flex: 1; min-width: 0; }

.moment-name { font-size: 15px; font-weight: 600; color: #576b95; margin-bottom: 4px; }

.moment-text {
  font-size: 15px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 8px;
}

.moment-img {
  width: 100%;
  max-width: 320px;
  border-radius: 6px;
  cursor: pointer;
  display: block;
  margin-bottom: 8px;
}

.moment-time { font-size: 11px; color: #b0b0b0; }

.moments-empty { text-align: center; color: var(--sub); font-size: 14px; padding: 40px 0; }

/* 隐藏优先：确保视图切换时彻底隐藏（覆盖 .moments-view 等 display 规则） */
.hidden { display: none !important; }

/* ===== 手机抽屉（窄屏侧栏替代） ===== */
.drawer-btn { display: none; align-items: center; justify-content: center; width: 34px; height: 34px; border: none; background: transparent; font-size: 20px; color: #111; cursor: pointer; margin-right: 2px; border-radius: 8px; }
.drawer-btn:active { background: rgba(0, 0, 0, 0.06); }

.drawer-mask { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45); z-index: 90; }
.drawer {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 270px;
  background: #f7f7f7;
  z-index: 91;
  display: flex;
  flex-direction: column;
  transform: translateX(-102%);
  transition: transform 0.22s ease;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.12);
}
.drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; gap: 8px; padding: 16px 14px; border-bottom: 1px solid var(--line); }
.drawer-title { font-size: 17px; font-weight: 600; }
.drawer-badge {
  background: linear-gradient(135deg, #07C160, #2fd67f);
  color: #fff;
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 10px;
}
.drawer-list { flex: 1; overflow-y: auto; min-height: 0; }
.drawer-foot { padding: 12px 14px; font-size: 11px; color: var(--sub); border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 8px; }

/* ===== 窄屏（手机）：只显示聊天窗口 + 抽屉 ===== */
@media (max-width: 720px) {
  .sidebar { display: none; }
  .drawer-btn { display: inline-flex; }
}