/* ============================================================
 * 前台客服悬浮窗样式
 * ============================================================ */

/* ---------- 悬浮球 ---------- */
.kefu-fab {
  position: fixed;
  right: 16px;
  bottom: 60px;
  z-index: 99999;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff6a00, #ff9a3c);
  box-shadow: 0 4px 18px rgba(255,106,0,.45);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s;
  font-size: 11px;
  user-select: none;
}
.kefu-fab:hover { transform: scale(1.05); box-shadow: 0 6px 22px rgba(255,106,0,.55); }
.kefu-fab:active { transform: scale(.92); }
.kefu-fab .fab-icon { font-size: 24px; line-height: 1; }
.kefu-fab .fab-text { margin-top: 3px; font-weight: 500; }
.kefu-fab .fab-badge {
  position: absolute;
  top: -3px;
  right: -3px;
  min-width: 20px;
  height: 20px;
  line-height: 20px;
  border-radius: 10px;
  background: #FF5722;
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  padding: 0 5px;
  border: 2px solid #fff;
  display: none;
}

/* ---------- 聊天窗口 ---------- */
.kefu-window {
  position: fixed;
  right: 16px;
  bottom: 124px;
  z-index: 99999;
  width: 360px;
  height: 520px;
  max-height: calc(100vh - 140px);
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0,0,0,.2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: kefuIn .25s ease;
}
@keyframes kefuIn { from { transform: translateY(24px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.kefu-window.hide { display: none; }

/* 头部：头像 + 标题 + 在线状态 + 关闭 */
.kefu-window .kw-head {
  background: linear-gradient(135deg, #ff6a00, #ff9a3c);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.kefu-window .kw-head .kw-head-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-right: 12px;
  flex-shrink: 0;
}
.kefu-window .kw-head .kw-head-info { flex: 1; min-width: 0; }
.kefu-window .kw-head .kw-title { font-size: 15px; font-weight: 700; line-height: 1.2; }
.kefu-window .kw-head .kw-sub {
  font-size: 12px;
  margin-top: 3px;
  opacity: .95;
  display: flex;
  align-items: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.kefu-window .kw-head .kw-sub .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #7CFC9A; margin-right: 5px; flex-shrink: 0;
  box-shadow: 0 0 0 2px rgba(124,252,154,.35);
}
.kefu-window .kw-head .kw-sub .dot.offline { background: #e0e0e0; box-shadow: none; }
.kefu-window .kw-head .kw-close {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  color: #fff;
  transition: background .2s;
  flex-shrink: 0;
}
.kefu-window .kw-head .kw-close:hover { background: rgba(255,255,255,.35); }

/* 欢迎语提示条 */
.kefu-window .kw-welcome {
  background: #fff7ee;
  border-bottom: 1px solid #ffe9d6;
  padding: 10px 16px;
  font-size: 12px;
  color: #b06a1f;
  line-height: 1.5;
  flex-shrink: 0;
}

/* 消息内容区 */
.kefu-window .kw-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 14px;
  background: #f6f7f9;
}
.kefu-window .kw-body::-webkit-scrollbar { width: 5px; }
.kefu-window .kw-body::-webkit-scrollbar-thumb { background: #ddd; border-radius: 3px; }

/* 消息行 */
.kefu-window .kw-msg { display: flex; margin-bottom: 16px; }
.kefu-window .kw-msg.service { justify-content: flex-start; }
.kefu-window .kw-msg.visitor { justify-content: flex-end; }
.kefu-window .kw-msg .kw-avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; color: #fff; font-weight: 600;
}
.kefu-window .kw-msg.service .kw-avatar { background: linear-gradient(135deg,#ff6a00,#ff9a3c); }
.kefu-window .kw-msg.visitor .kw-avatar { background: #aeb4bc; }

/* 消息主体（名称 + 气泡 + 时间） */
.kefu-window .kw-msg .kw-msg-main { max-width: 72%; margin: 0 8px; }
.kefu-window .kw-msg .kw-name { font-size: 11px; color: #999; margin: 0 4px 4px; }
.kefu-window .kw-msg.visitor .kw-name { text-align: right; }
.kefu-window .kw-msg .kw-bubble {
  padding: 10px 13px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.55;
  word-break: break-word;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.kefu-window .kw-msg.service .kw-bubble {
  background: #fff; color: #333; border-top-left-radius: 3px;
  border: 1px solid #eee;
}
.kefu-window .kw-msg.visitor .kw-bubble {
  background: linear-gradient(135deg,#ff6a00,#ff9a3c); color: #fff; border-top-right-radius: 3px;
}
/* 客服消息支持 HTML 渲染：富文本内部元素样式 */
.kefu-window .kw-msg .kw-bubble img { max-width: 100%; border-radius: 6px; display: block; }
.kefu-window .kw-msg .kw-bubble a { color: #ff6a00; text-decoration: underline; word-break: break-all; }
.kefu-window .kw-msg .kw-bubble p { margin: 0 0 6px; }
.kefu-window .kw-msg .kw-bubble p:last-child { margin-bottom: 0; }
.kefu-window .kw-msg .kw-bubble br { line-height: 1.8; }
.kefu-window .kw-msg .kw-bubble ul, .kefu-window .kw-msg .kw-bubble ol { margin: 4px 0 6px; padding-left: 20px; }
.kefu-window .kw-msg .kw-bubble li { margin-bottom: 2px; }
.kefu-window .kw-msg .kw-bubble h1, .kefu-window .kw-msg .kw-bubble h2,
.kefu-window .kw-msg .kw-bubble h3, .kefu-window .kw-msg .kw-bubble h4 { margin: 6px 0 4px; line-height: 1.4; font-weight: 600; }
.kefu-window .kw-msg .kw-bubble blockquote { margin: 4px 0; padding: 4px 10px; border-left: 3px solid #ffd0b0; color: #666; background: #fff8f2; }
.kefu-window .kw-msg .kw-bubble table { border-collapse: collapse; margin: 4px 0; }
.kefu-window .kw-msg .kw-bubble table th, .kefu-window .kw-msg .kw-bubble table td { border: 1px solid #e5e5e5; padding: 4px 8px; font-size: 13px; }
.kefu-window .kw-msg .kw-bubble code { background: #f4f4f4; padding: 1px 5px; border-radius: 4px; font-size: 12px; color: #d14; }
.kefu-window .kw-msg .kw-bubble pre { background: #f6f6f6; padding: 8px 10px; border-radius: 6px; overflow-x: auto; font-size: 12px; }
.kefu-window .kw-msg .kw-time { font-size: 10px; color: #c0c4cc; margin: 4px 4px 0; }
.kefu-window .kw-msg.visitor .kw-time { text-align: right; }

/* 系统消息 */
.kefu-window .kw-msg.system { justify-content: center; }
.kefu-window .kw-msg.system .kw-bubble {
  background: transparent; color: #999; font-size: 12px;
  padding: 4px 0; text-align: center; box-shadow: none; border: none;
}

/* 空状态 */
.kefu-window .kw-empty {
  text-align: center; color: #bbb; font-size: 13px;
  padding: 40px 0; line-height: 2;
}
.kefu-window .kw-empty .kw-empty-icon { font-size: 36px; display: block; margin-bottom: 6px; }

/* ---------- 输入区 ---------- */
.kefu-window .kw-input-area {
  border-top: 1px solid #eee;
  background: #fff;
  flex-shrink: 0;
}
/* 输入区工具条 */
.kefu-window .kw-tools {
  display: flex;
  align-items: center;
  padding: 4px 12px;
  border-bottom: 1px solid #f5f5f5;
}
.kefu-window .kw-tools .kw-tool {
  font-size: 12px; color: #999; cursor: pointer;
  padding: 2px 6px; margin-right: 4px;
  display: inline-flex; align-items: center;
}
.kefu-window .kw-tools .kw-tool:hover { color: #ff6a00; }
.kefu-window .kw-tools .kw-tool i { font-style: normal; font-size: 14px; margin-right: 3px; }
/* 输入框 */
.kefu-window .kw-input {
  display: flex;
  align-items: flex-end;
  padding: 8px 12px;
}
.kefu-window .kw-input textarea {
  flex: 1;
  border: none; outline: none; resize: none;
  font-size: 14px; font-family: inherit;
  height: 42px; max-height: 100px;
  padding: 6px 4px;
  line-height: 1.5;
}
.kefu-window .kw-input textarea::placeholder { color: #c0c4cc; }
/* 发送按钮 */
.kefu-window .kw-send {
  flex-shrink: 0;
  margin-left: 10px;
  background: linear-gradient(135deg, #ff6a00, #ff9a3c);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .2s, transform .1s;
  box-shadow: 0 2px 8px rgba(255,106,0,.3);
}
.kefu-window .kw-send:hover { opacity: .9; }
.kefu-window .kw-send:active { transform: scale(.96); }
.kefu-window .kw-send:disabled { opacity: .5; cursor: not-allowed; }
/* 输入区底部提示 */
.kefu-window .kw-tip {
  padding: 0 12px 8px;
  font-size: 11px;
  color: #c0c4cc;
}

/* ---------- 快捷回复面板 ---------- */
.kefu-quick-panel {
  position: absolute;
  left: 12px;
  bottom: 150px;
  z-index: 20;
  width: 220px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 6px 24px rgba(0,0,0,.15);
  overflow: hidden;
  animation: kefuIn .2s ease;
}
.kefu-quick-panel .kq-title {
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #333;
  background: #fafafa;
  border-bottom: 1px solid #f0f0f0;
}
.kefu-quick-panel .kq-item {
  padding: 10px 14px;
  font-size: 13px;
  color: #555;
  cursor: pointer;
  border-bottom: 1px solid #f7f7f7;
  transition: background .15s;
}
.kefu-quick-panel .kq-item:last-child { border-bottom: none; }
.kefu-quick-panel .kq-item:hover { background: #fff7ee; color: #ff6a00; }

/* ---------- 移动端适配 ---------- */
@media (max-width: 480px) {
  .kefu-window { right: 8px; left: 8px; bottom: 100px; width: auto; height: 72vh; }
  .kefu-fab { right: 12px; bottom: 40px; }
  .kefu-window .kw-msg .kw-msg-main { max-width: 78%; }
}