:root{
  --bg0:#070A12; --bg1:#0A0F1E;
  --text:#EAF0FF; --muted:rgba(234,240,255,.65);
  --good:#38F2B3; --warn:#FFD36A; --bad:#FF5B7A;
  --shadow:0 24px 80px rgba(0,0,0,.55);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --app-h: 100vh;
}
@supports (height: 100dvh){
  :root{ --app-h: 100dvh; }
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; color:var(--text);
  font-family: ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,"PingFang SC","Microsoft YaHei";
  background: linear-gradient(180deg, #241d3d 0%, #201032 100%);
  overflow:hidden;
}

/* FAB */
.chatFabIcon{
  width:28px;height:28px;
  background-image: url("/pic/ai_sci.png");
  background-size: cover;
  background-position:center;
  border-radius:999px;
  box-shadow: 0 0 0 4px rgba(56,242,179,.16);
}

/* Modal */
.chatModal{
  position:fixed; 
  inset:0; 
  display:block; 
  z-index:9998; 
  background-image: url("/pic/bg.png");
  background-position: top;
    background-size: 100% auto;
    background-repeat: no-repeat;
}
.chatOverlay{ position:absolute; inset:0;}

.chatPanel{
  position:absolute;
  right:16px;
  bottom: calc(84px + var(--safe-bottom));
  width: min(420px, calc(100vw - 32px));
  height: min(720px, calc(var(--app-h) - 120px));
  border-radius: 22px;
  overflow:hidden;
  box-shadow: var(--shadow);
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}
@media (max-width: 520px){
  .chatPanel{
    right:0; left:0; top:0; bottom:0;
    width:100%;
    height: var(--app-h);
    border-radius:0;
    border-left:0;border-right:0;
  }
}

.shell{
  width:100%; height:100%;
  overflow:hidden;
  display:flex; flex-direction:column;
}

/* Top */
.top{
  padding:12px 14px;
  display:flex; gap:10px; align-items:center;
}
.statusDot{width:10px;height:10px;border-radius:999px;background:var(--good);box-shadow:0 0 22px rgba(56,242,179,.65);}
.topLeft{min-width:0;}
.topDesc{font-weight:800;}

.topSub{
  margin-left:auto;
  display:flex;
  gap:8px;
  align-items:center;
}

.closeBtn{
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width:520px){
  .top{ padding:10px 12px; }
  #statusText{ display:none; }
}

/* View */
.viewPort{flex:1; position:relative;}
.view{position:absolute; inset:0; display:none; flex-direction:column;}
.view.active{display:flex;}

.msgs{
  flex:1; padding:12px; overflow:auto;
  scroll-behavior:smooth;
}

/* ✅ 微信上面那种居中时间条 */
.timeDivider{
  margin: 10px 0;
  display:flex;
  justify-content:center;
}
.timeDivider span{
  font-size:12px;
  color: rgba(234,240,255,.55);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
  backdrop-filter: blur(10px);
}

/* Rows */
.row{display:flex; margin:10px 0; gap:8px; align-items:flex-start;}
.row.bot{justify-content:flex-start;}
.row.me{justify-content:flex-end;}
.msgCol{display:flex; flex-direction:column; max-width:86%; width: 82%;}
.row.me .bubble{margin-left:auto;}

/* Bubble */
.bubble{
  width:fit-content;
  padding:12px 12px; border-radius:18px;
  line-height:1.45; font-size:14px;
  white-space:pre-wrap; word-break:break-word;
  border-radius: 10px;
  background: #ffffff1a;
  position:relative;
  color: #f2d1ff;
}

/* ✅ AI 气泡背景：更协调（深色玻璃） */
.bot .bubble{
}

/* 我：保持好看但更柔和 */
.me .bubble{
  background: #50459A;
  border-top-right-radius:10px; 
  color: #FFF;
}

/* Quick bar */
.quickBar{
  padding:10px 12px 0;
  display:flex;
  gap:10px;
  overflow-x: auto;
  scrollbar-width: none; /* 隐藏滚动条（Firefox） */
  &::-webkit-scrollbar {
      display: none; /* 隐藏滚动条（Chrome） */
  }
}
/* ✅ 优化后的按钮样式 */
.pillBtn{
  border: 1px solid #ffffff33;
  background: #ffffff33;
  color: #FFFFFF;  /* 保持白色字体 */
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); /* 增加柔和的阴影，提升立体感 */
}

.pillBtn:hover {
  background: #3B7E98;  /* 悬浮时背景稍微加深 */
  border-color: #2D6B82;  /* 悬浮时边框颜色稍微加深 */
  transform: translateY(-2px);  /* 提升按钮的悬浮效果 */
}

.pillBtn--sm {
  padding: 7px 12px;
  font-size: 13px;
}

.pillBtn--ghost {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* 提供渐变色样式（更现代） */
.pillBtn--gradient {
  background: linear-gradient(135deg, #6A9DB8, #5C8DA2);
  border-color: #4E7C92;
}


/* 顶部状态小圆点 */
.pillDot{
  width:8px;height:8px;border-radius:999px;
  background:var(--good);
  box-shadow:0 0 18px rgba(56,242,179,.55);
  display:inline-block;
}

/* 气泡里的按钮布局 */
.btns{display:flex; flex-wrap:wrap; gap:8px; margin-top:8px;}
.btns .pillBtn{background: #4e89f5;}

/* Bottom */
.bottom{
  padding:10px 12px;
  padding-bottom: calc(10px + var(--safe-bottom));
  display:flex; gap:10px; align-items:center;
}
.rectangle{
  border: 1px solid #44325e;
  border-radius: 99px;
  background: #2a1b40;
  padding: 4px 7px;
  box-sizing: border-box;
  width: 100%;
  display: flex;
  align-items: center;
}
.input{
  flex:1; border-radius:999px; padding:12px 14px 12px 10px;
  outline:none; font-size:14px; color:var(--text);
  border: none;
  background: none;
}
.input::placeholder{color:#ffffff80;}
.send{
  border:0; border-radius:999px;
  cursor:pointer; color:#061018; font-weight:800;
  transition: transform .15s ease, filter .15s ease;
  white-space:nowrap;
  margin-left: 4px;
}
.send:hover{transform: translateY(-1px); filter: brightness(1.04);}
.send:disabled{opacity:.55; cursor:not-allowed;}

/* To bottom */
.toBottom{
  position:absolute;
  right:12px;
  bottom: calc(94px + var(--safe-bottom));
  border:1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.30);
  color:rgba(234,240,255,.85);
  border-radius:999px;
  padding:10px 12px;
  cursor:pointer;
  backdrop-filter: blur(10px);
  display:none;
  box-shadow: 0 12px 40px rgba(0,0,0,.35);
}

/* Avatar（不依赖外网） */
.avatar{
  width:34px; height:34px; border-radius:999px;
  background: rgba(255,255,255,.06);
  flex:0 0 auto;
  overflow:hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,.20);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.avatar--user{ background-image: url("/pic/user.png"); }
.avatar--ai{ background-image: url("/pic/ai_sci.png"); }
.avatar--agent{ background-image: url("/pic/agent_female.png"); }

/* Thinking */
.typingLine{display:inline-flex; align-items:center; gap:10px;}
.dots{display:inline-flex; gap:6px; align-items:center;}
.dot{
  width:6px; height:6px; border-radius:999px;
  background: rgba(234,240,255,.65);
  animation: bob 1s infinite ease-in-out;
}
.dot:nth-child(2){ animation-delay:.12s; }
.dot:nth-child(3){ animation-delay:.24s; }
@keyframes bob{
  0%,100%{ transform: translateY(0); opacity:.55; }
  50%{ transform: translateY(-3px); opacity:1; }
}

/* ================================
   聊天消息区滚动条美化
   作用于 #aiMsgs / #huMsgs
   ================================ */

/* Chrome / Edge / Safari */
#aiMsgs::-webkit-scrollbar,
#huMsgs::-webkit-scrollbar {
  width: 6px;
}

#aiMsgs::-webkit-scrollbar-track,
#huMsgs::-webkit-scrollbar-track {
  background: transparent;
}

#aiMsgs::-webkit-scrollbar-thumb,
#huMsgs::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.25);
  border-radius: 6px;
}

#aiMsgs::-webkit-scrollbar-thumb:hover,
#huMsgs::-webkit-scrollbar-thumb:hover {
  background-color: rgba(255, 255, 255, 0.45);
}

/* Firefox */
#aiMsgs,
#huMsgs {
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.35) transparent;
  
}

#toggleBtn {
  display: none;
}

#toggleBtn.active {
  display: inline-flex; /* 或 inline-block / block，按你布局 */
}

html.rtl { direction: rtl; }
html.rtl body { text-align: right; }
html.rtl input, html.rtl textarea { text-align: right; }

html.rtl .aiMsgs { flex-direction: row-reverse; }

/* 顶部联系方式 */
.contactBox {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  margin-right: 8px;
  font-size: 12px;
  line-height: 1.2;
}

.contactItem {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  margin-bottom: 2px;
  white-space: nowrap;
}

.contactItem:hover {
  color: #ffffff;
  text-decoration: underline;
}

.contactBtn {
  background: #f1e6ff;
  border: none;
  border-radius: 8px;
  color: #8f4dde;
  font-size: 14px;
  padding: 8px 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: "Noto Sans SC";
}

.contactBtn:hover {
    transform: scale(1.05);  /* 鼠标悬停时放大 */
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);  /* 更强的阴影效果 */
}

.contactBtn:active {
    transform: scale(0.98);  /* 点击时缩小 */
}

.view {
  transition: opacity 0.3s ease-in-out;
}
.timestamp {
  font-size: 12px;
  color: #999;
  text-align: center;
  margin:0 auto 10px; /* 增加底部间距 */
  display: inline-block; /* 使时间戳和气泡紧密包裹 */
  padding: 5px 10px; /* 给时间戳添加一些内边距 */
  border-radius: 20px; /* 创建小气泡效果 */
  font-weight: bold; /* 让时间戳更突出 */
  position: relative;
  max-width: 80%; /* 限制时间戳的最大宽度 */
  min-width: 30px;
}

/* 确保时间戳样式在聊天框中的位置 */
.chat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#fileInput {
	display: none;
}