/* ============================================================
   站内 AI 助手 —— 悬浮对话面板
   颜色全部走站点 :root 变量，保持一致；打印时隐藏。
   ============================================================ */

.ai-fab{
  position:fixed;right:20px;bottom:22px;z-index:120;
  width:54px;height:54px;border-radius:50%;border:0;cursor:pointer;
  background:linear-gradient(140deg,#3d84a3,#225a75);color:#fff;
  box-shadow:0 6px 20px rgba(34,90,117,.32);
  display:grid;place-items:center;
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s;
}
.ai-fab:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(34,90,117,.4)}
.ai-fab:active{transform:scale(.94)}
.ai-fab svg{width:24px;height:24px}
.ai-fab::after{ /* 呼吸提示圈 */
  content:"";position:absolute;inset:-4px;border-radius:50%;
  border:2px solid rgba(43,111,143,.35);animation:aiPulse 2.6s ease-out infinite;pointer-events:none;
}
.ai-fab[data-busy="1"]::after{animation:none;opacity:0}
@keyframes aiPulse{
  0%{transform:scale(.9);opacity:.9}
  70%{transform:scale(1.35);opacity:0}
  100%{transform:scale(1.35);opacity:0}
}

/* ---------- 面板 ---------- */
.ai-panel{
  position:fixed;right:20px;bottom:88px;z-index:121;
  width:min(400px,calc(100vw - 40px));height:min(600px,calc(100vh - 130px));
  display:flex;flex-direction:column;
  background:var(--surface,#fff);
  border:1px solid var(--line,#e2eaf0);border-radius:var(--r,14px);
  box-shadow:0 18px 50px rgba(19,45,60,.18),0 2px 8px rgba(19,45,60,.06);
  overflow:hidden;
  opacity:0;visibility:hidden;transform:translateY(14px) scale(.97);transform-origin:100% 100%;
  transition:opacity .2s ease,transform .24s cubic-bezier(.22,.61,.36,1),visibility .24s;
}
.ai-panel[data-open="1"]{opacity:1;visibility:visible;transform:none}

.ai-hd{
  display:flex;align-items:center;gap:11px;padding:13px 14px;
  background:linear-gradient(135deg,#2b6f8f,#225a75);color:#fff;flex:0 0 auto;
}
.ai-logo{
  width:34px;height:34px;border-radius:10px;overflow:hidden;flex:0 0 auto;
  background:rgba(255,255,255,.16);display:grid;place-items:center;
}
.ai-logo img{width:100%;height:100%;display:block;object-fit:cover}
.ai-hd-txt{flex:1;min-width:0}
.ai-hd-t{font-size:14.5px;font-weight:700;letter-spacing:-.01em}
.ai-hd-s{font-size:11px;opacity:.82;margin-top:1px}
.ai-x{
  border:0;background:rgba(255,255,255,.16);color:#fff;width:28px;height:28px;border-radius:8px;
  cursor:pointer;font-size:16px;line-height:1;display:grid;place-items:center;padding:0;
}
.ai-x:hover{background:rgba(255,255,255,.28)}

.ai-body{
  flex:1;overflow-y:auto;overscroll-behavior:contain;padding:16px 14px;
  display:flex;flex-direction:column;gap:13px;background:var(--bg,#f5f8fa);
  scroll-behavior:smooth;
}
.ai-body::-webkit-scrollbar{width:7px}
.ai-body::-webkit-scrollbar-thumb{background:#c9d5dd;border-radius:4px}

/* ---------- 气泡 ---------- */
.msg{display:flex;gap:9px;max-width:100%;animation:aiIn .26s ease both}
@keyframes aiIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.msg.me{flex-direction:row-reverse}
.msg-ac{
  width:29px;height:29px;border-radius:9px;flex:0 0 auto;overflow:hidden;margin-top:2px;
  background:var(--primary-soft,#e8f2f7);display:grid;place-items:center;
  border:1px solid var(--line-soft,#eef3f7);
}
.msg-ac img{width:100%;height:100%;display:block;object-fit:cover}
.msg-bub{
  border-radius:14px;padding:11px 13px;font-size:14px;line-height:1.72;
  white-space:pre-wrap;word-break:break-word;color:var(--text,#16262f);
  background:var(--surface,#fff);border:1px solid var(--line,#e2eaf0);
  border-top-left-radius:4px;min-width:0;
}
.msg.me .msg-bub{
  background:linear-gradient(135deg,#2b6f8f,#225a75);color:#fff;border-color:transparent;
  border-top-left-radius:14px;border-top-right-radius:4px;
}
.msg-bub p{margin:0 0 9px}
.msg-bub p:last-child{margin-bottom:0}
.msg-bub strong{font-weight:700}
.msg-bub ol,.msg-bub ul{margin:5px 0 9px;padding-left:20px}
.msg-bub li{margin:4px 0}
.msg-bub code{
  background:rgba(0,0,0,.06);border-radius:5px;padding:1px 5px;font-size:12.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.msg.me .msg-bub code{background:rgba(255,255,255,.2)}
.msg-bub .ai-crisis{
  display:block;margin:9px 0 2px;padding:9px 11px;border-radius:10px;
  background:#fdeceb;border:1px solid #f3c9c5;color:#8a2018;font-size:13px;line-height:1.65;
}
.msg-bub .ai-crisis b{color:#b3261e}
.msg-bub .ai-crisis a{color:#b3261e;font-weight:600;text-decoration:underline}

/* 打字指示 */
.ai-typing{display:inline-flex;gap:4px;align-items:center;height:18px}
.ai-typing i{
  width:6px;height:6px;border-radius:50%;background:var(--primary,#2b6f8f);opacity:.35;
  animation:aiBlink 1.1s infinite;
}
.ai-typing i:nth-child(2){animation-delay:.18s}
.ai-typing i:nth-child(3){animation-delay:.36s}
@keyframes aiBlink{0%,60%,100%{opacity:.25;transform:translateY(0)}30%{opacity:.9;transform:translateY(-3px)}}
.caret{display:inline-block;width:2px;height:14px;background:var(--primary,#2b6f8f);
  vertical-align:-2px;margin-left:2px;animation:aiCare .9s steps(1) infinite}
@keyframes aiCare{0%,50%{opacity:1}51%,100%{opacity:0}}

/* ---------- 快捷问题 ---------- */
.ai-quick{display:flex;flex-wrap:wrap;gap:7px;padding:0 14px 10px;flex:0 0 auto;background:var(--bg,#f5f8fa)}
.ai-quick button{
  font:inherit;font-size:12.5px;cursor:pointer;padding:6px 11px;border-radius:999px;
  border:1px solid var(--line,#e2eaf0);background:var(--surface,#fff);color:var(--text-2,#42555f);
  transition:.18s;text-align:left;
}
.ai-quick button:hover{border-color:var(--primary,#2b6f8f);color:var(--primary-d,#225a75);background:var(--primary-soft,#e8f2f7)}

/* ---------- 底栏 ---------- */
.ai-ft{
  flex:0 0 auto;border-top:1px solid var(--line-soft,#eef3f7);background:var(--surface,#fff);
  padding:9px 12px 10px;
}
.ai-inputrow{display:flex;gap:8px;align-items:flex-end}
.ai-inputrow textarea{
  flex:1;resize:none;font:inherit;font-size:14px;line-height:1.6;
  padding:9px 11px;border-radius:11px;border:1px solid var(--line,#e2eaf0);
  background:var(--bg,#f5f8fa);color:var(--text,#16262f);max-height:104px;min-height:38px;
}
.ai-inputrow textarea:focus{outline:none;border-color:var(--primary,#2b6f8f);background:var(--surface,#fff)}
.ai-send{
  border:0;cursor:pointer;width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:var(--primary,#2b6f8f);color:#fff;display:grid;place-items:center;transition:.18s;padding:0;
}
.ai-send:hover{background:var(--primary-d,#225a75)}
.ai-send[data-busy="1"]{background:#9db3bf;cursor:not-allowed}
.ai-send svg{width:17px;height:17px}
.ai-note{
  font-size:10.5px;color:var(--muted,#71858f);line-height:1.55;margin-top:7px;
  display:flex;flex-wrap:wrap;gap:4px 10px;align-items:center;
}
.ai-note a{color:var(--primary-d,#225a75);font-weight:600;text-decoration:underline}

/* ---------- 响应式 ---------- */
@media (max-width:640px){
  .ai-fab{right:14px;bottom:14px;width:50px;height:50px}
  .ai-fab svg{width:22px;height:22px}
  .ai-panel{
    right:0;left:0;bottom:0;width:100%;height:100vh;height:100dvh;
    border-radius:0;border:0;transform-origin:50% 100%;
  }
  .ai-ft{padding-bottom:max(10px,env(safe-area-inset-bottom))}
}
@media (hover:none){ .ai-fab::after{animation:none} }
@media print{ .ai-fab,.ai-panel{display:none!important} }