/* ---------- agent (小梦) ---------- */
.agent-fab{position:fixed;right:clamp(16px,3vw,32px);bottom:clamp(16px,3vw,32px);z-index:120;display:inline-flex;align-items:center;gap:11px;height:52px;padding:0 24px 0 19px;border-radius:999px;background:#F0EEE9;color:#1A1A18;border:none;font-family:inherit;font-size:15px;font-weight:500;letter-spacing:.02em;cursor:pointer;box-shadow:0 10px 36px rgba(0,0,0,.5);transition:transform .35s var(--ease,cubic-bezier(.2,.7,.2,1)),box-shadow .3s}
.agent-fab:hover{transform:translateY(-3px);box-shadow:0 16px 48px rgba(0,0,0,.6)}
.agent-fab .agent-dots{width:20px;height:20px;flex:none;animation:agent-pulse 3.2s ease-in-out infinite}
@keyframes agent-pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.12)}}
.agent-fab[aria-expanded="true"]{transform:scale(0);opacity:0;pointer-events:none}
.agent-panel{position:fixed;right:clamp(16px,3vw,32px);bottom:clamp(16px,3vw,32px);z-index:121;width:min(392px,calc(100vw - 24px));height:min(600px,calc(100dvh - 48px));background:var(--ink,#0B0B0A);border:1px solid var(--line,#262624);border-radius:18px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 24px 80px rgba(0,0,0,.6);opacity:0;transform:translateY(18px) scale(.97);pointer-events:none;transition:opacity .35s var(--ease,cubic-bezier(.2,.7,.2,1)),transform .35s var(--ease,cubic-bezier(.2,.7,.2,1))}
.agent-panel.open{opacity:1;transform:none;pointer-events:auto}
.agent-head{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line,#262624);flex:none}
.agent-ava{width:38px;height:38px;border-radius:50%;background:var(--ink-2,#141412);border:1px solid var(--line,#262624);display:flex;align-items:center;justify-content:center;position:relative;flex:none}
.agent-ava i{width:8px;height:8px;border-radius:50%;background:var(--academy,#C8FF3D);display:block}
.agent-ava .blink{animation:agent-blink 2.6s infinite}
@keyframes agent-blink{0%,100%{opacity:1}50%{opacity:.25}}
.agent-head h3{font-size:15px;font-weight:500;letter-spacing:-.01em;color:var(--fg,#F2F2EE)}
.agent-head .label{color:var(--fg-3,#7C7C76);margin-top:2px}
.agent-x{margin-left:auto;background:none;border:1px solid var(--line,#262624);border-radius:50%;width:30px;height:30px;color:var(--fg-2,#B4B4AC);cursor:pointer;font-size:13px;line-height:1;transition:background .3s,color .3s;flex:none}
.agent-x:hover{background:var(--ink-2,#141412);color:var(--fg,#F2F2EE)}
.agent-body{flex:1;overflow-y:auto;padding:18px 16px 8px;display:flex;flex-direction:column;gap:14px;scrollbar-width:thin;scrollbar-color:var(--line,#262624) transparent}
.agent-msg{max-width:86%;font-size:14px;line-height:1.75;color:var(--fg,#F2F2EE)}
.agent-msg.bot{align-self:flex-start;background:var(--ink-2,#141412);border:1px solid var(--line,#262624);border-radius:14px 14px 14px 4px;padding:12px 14px;white-space:pre-wrap;word-break:break-word}
.agent-msg.user{align-self:flex-end;background:#1C1C19;border-radius:14px 14px 4px 14px;padding:12px 14px;color:var(--fg,#F2F2EE)}
.agent-msg.typing i{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--fg-3,#7C7C76);margin-right:4px;animation:agent-typ 1.2s infinite}
.agent-msg.typing i:nth-child(2){animation-delay:.18s}
.agent-msg.typing i:nth-child(3){animation-delay:.36s}
@keyframes agent-typ{0%,60%,100%{transform:none;opacity:.4}30%{transform:translateY(-4px);opacity:1}}
.agent-chips{display:flex;flex-wrap:wrap;gap:8px;padding:4px 16px 10px;flex:none}
.agent-chip{background:none;border:1px solid var(--line,#262624);border-radius:999px;color:var(--fg-2,#B4B4AC);font-size:12.5px;padding:7px 13px;cursor:pointer;transition:border-color .3s,color .3s,background .3s;font-family:inherit}
.agent-chip:hover{border-color:var(--academy,#C8FF3D);color:var(--fg,#F2F2EE);background:var(--ink-2,#141412)}
.agent-foot{flex:none;padding:10px 14px 14px;border-top:1px solid var(--line,#262624)}
.agent-in{display:flex;gap:8px;align-items:flex-end}
.agent-in textarea{flex:1;background:var(--ink-2,#141412);border:1px solid var(--line,#262624);border-radius:12px;padding:11px 13px;color:var(--fg,#F2F2EE);font-size:14px;line-height:1.5;font-family:inherit;resize:none;min-height:44px;max-height:110px;outline:none;transition:border-color .3s}
.agent-in textarea:focus{border-color:#3A3A36}
.agent-in textarea::placeholder{color:var(--fg-3,#7C7C76)}
.agent-send{flex:none;width:44px;height:44px;border-radius:12px;background:var(--fg,#F2F2EE);border:none;color:var(--ink,#0B0B0A);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .3s var(--ease,cubic-bezier(.2,.7,.2,1)),opacity .3s}
.agent-send:hover{transform:translateY(-2px)}
.agent-send:disabled{opacity:.35;transform:none;cursor:default}
.agent-send svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.agent-wx{display:block;width:100%;margin-top:8px;background:none;border:1px dashed var(--line,#262624);border-radius:10px;color:var(--fg-3,#7C7C76);font-size:12px;padding:8px;cursor:pointer;font-family:inherit;transition:color .3s,border-color .3s}
.agent-wx:hover{color:var(--fg-2,#B4B4AC);border-color:#3A3A36}
@media (max-width:640px){
  .agent-panel{right:8px;left:8px;bottom:8px;width:auto;height:min(560px,calc(100dvh - 24px))}
  .agent-fab{right:14px;bottom:14px}
}
@media (prefers-reduced-motion:reduce){
  .agent-fab,.agent-panel,.agent-send{transition:none}
  .agent-ava .blink,.agent-msg.typing i{animation:none}
}