/* ============================================================
   佳润环保 · 在线客服组件
   右下悬浮按钮 + 对话面板 + 微信直连
   独立文件，便于整块启停
   ============================================================ */

/* ---------- 悬浮按钮 ---------- */
.cs-fab{
  position:fixed;right:26px;bottom:26px;z-index:960;
  display:flex;align-items:center;gap:9px;
  height:54px;padding:0 18px 0 15px;border-radius:999px;
  background:var(--pine);color:var(--cream);
  border:1px solid rgba(196,240,74,.30);
  box-shadow:0 12px 30px rgba(13,42,34,.26),0 1px 0 rgba(255,255,255,.07) inset;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),background .3s;
  font-size:13.5px;letter-spacing:.02em;white-space:nowrap;
}
.cs-fab:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(13,42,34,.32)}
.cs-fab:active{transform:translateY(0) scale(.98)}
.cs-fab svg{width:21px;height:21px;flex:none;stroke:var(--lime)}
.cs-fab-tx{font-weight:600}
.cs-fab.on{background:var(--pine-3)}

/* 未读红点 */
.cs-dot{
  position:absolute;top:9px;right:11px;width:9px;height:9px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 0 rgba(196,240,74,.65);
  animation:csPulse 2.4s infinite;display:none;
}
.cs-fab.has-new .cs-dot{display:block}
@keyframes csPulse{
  0%{box-shadow:0 0 0 0 rgba(196,240,74,.55)}
  70%{box-shadow:0 0 0 9px rgba(196,240,74,0)}
  100%{box-shadow:0 0 0 0 rgba(196,240,74,0)}
}

/* 到访气泡 */
.cs-teaser{
  position:fixed;right:26px;bottom:94px;z-index:959;max-width:262px;
  background:#fff;border:1px solid rgba(20,35,27,.12);border-radius:14px 14px 4px 14px;
  padding:13px 15px 12px;box-shadow:0 16px 34px rgba(13,42,34,.16);
  font-size:13px;line-height:1.62;color:var(--ink-2);
  opacity:0;transform:translateY(8px);pointer-events:none;transition:.4s var(--ease);
}
.cs-teaser.on{opacity:1;transform:none;pointer-events:auto}
.cs-teaser b{display:block;color:var(--ink);font-size:13.5px;margin-bottom:3px}
.cs-teaser-x{
  position:absolute;top:6px;right:6px;width:20px;height:20px;line-height:18px;text-align:center;
  border-radius:50%;color:var(--ink-3);font-size:14px;
}
.cs-teaser-x:hover{background:rgba(20,35,27,.06);color:var(--ink)}

/* ---------- 面板 ---------- */
.cs-panel{
  position:fixed;right:26px;bottom:92px;z-index:961;
  width:378px;max-width:calc(100vw - 32px);
  height:min(578px,calc(100vh - 128px));
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--cream);border:1px solid rgba(13,42,34,.14);border-radius:16px;
  box-shadow:0 32px 70px rgba(13,42,34,.30),0 2px 0 rgba(255,255,255,.5) inset;
  opacity:0;transform:translateY(16px) scale(.985);pointer-events:none;
  transition:opacity .34s var(--ease),transform .34s var(--ease);
}
.cs-panel.on{opacity:1;transform:none;pointer-events:auto}

/* 头部 */
.cs-head{
  display:flex;align-items:center;gap:11px;padding:14px 14px 14px 16px;
  background:var(--pine);color:var(--cream);flex:none;position:relative;
}
.cs-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(196,240,74,.55),rgba(196,240,74,0));
}
.cs-ava{
  width:38px;height:38px;border-radius:11px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:rgba(196,240,74,.14);border:1px solid rgba(196,240,74,.34);
  color:var(--lime);font-size:17px;font-weight:700;letter-spacing:.02em;
}
.cs-hi{flex:1;min-width:0}
.cs-hi b{display:block;font-size:14px;font-weight:600;letter-spacing:.01em;line-height:1.35}
.cs-hi span{display:flex;align-items:center;gap:5px;font-size:11.5px;color:rgba(242,237,226,.62);margin-top:2px}
.cs-on{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:none;box-shadow:0 0 0 3px rgba(196,240,74,.16)}
.cs-x{
  width:28px;height:28px;flex:none;border-radius:8px;color:rgba(242,237,226,.7);
  font-size:19px;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:.2s;
}
.cs-x:hover{background:rgba(242,237,226,.1);color:#fff}

/* 对话区 */
.cs-body{
  flex:1;overflow-y:auto;padding:16px 14px 6px;
  background:
    radial-gradient(circle at 88% 4%,rgba(196,240,74,.10),transparent 42%),
    var(--cream);
  scroll-behavior:smooth;
}
.cs-body::-webkit-scrollbar{width:5px}
.cs-body::-webkit-scrollbar-thumb{background:rgba(20,35,27,.18);border-radius:9px}

.cs-msg{display:flex;margin-bottom:11px;animation:csIn .38s var(--ease)}
@keyframes csIn{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}
.cs-msg.bot{justify-content:flex-start}
.cs-msg.me{justify-content:flex-end}

.cs-bub{
  max-width:85%;padding:10px 13px;border-radius:13px;
  font-size:13px;line-height:1.72;color:var(--ink-2);
  word-break:break-word;
}
.cs-msg.bot .cs-bub{
  background:#fff;border:1px solid rgba(20,35,27,.10);
  border-top-left-radius:4px;box-shadow:0 2px 8px rgba(13,42,34,.05);
}
.cs-msg.me .cs-bub{
  background:var(--pine);color:rgba(242,237,226,.94);
  border-top-right-radius:4px;
}
.cs-bub b{color:var(--ink);font-weight:600}
.cs-msg.me .cs-bub b{color:#fff}

/* 卡片消息：不加气泡底，卡片自身承担边界 */
.cs-msg.bot .cs-bub.plain{
  max-width:100%;padding:0;background:none;border:0;box-shadow:none;
}
.cs-bub.plain .cs-wx{margin-top:0}
.cs-bub a{color:var(--pine-3);text-decoration:underline;text-underline-offset:2px;font-weight:600}
.cs-bub a:hover{color:var(--clay)}
.cs-bub .cs-li{display:block;position:relative;padding-left:12px;margin-top:3px}
.cs-bub .cs-li::before{content:"";position:absolute;left:2px;top:9px;width:4px;height:4px;border-radius:50%;background:var(--lime-d)}

/* 打字中 */
.cs-typing{display:flex;gap:4px;padding:12px 14px}
.cs-typing i{width:5px;height:5px;border-radius:50%;background:var(--ink-3);animation:csT 1.2s infinite}
.cs-typing i:nth-child(2){animation-delay:.16s}
.cs-typing i:nth-child(3){animation-delay:.32s}
@keyframes csT{0%,60%,100%{opacity:.28;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}

/* 微信卡片 */
.cs-wx{
  margin-top:9px;background:#fff;border:1px solid rgba(20,35,27,.12);border-radius:12px;
  padding:11px 12px;display:flex;align-items:center;gap:10px;
}
.cs-wx-ic{
  width:34px;height:34px;border-radius:9px;flex:none;background:#07C160;
  display:flex;align-items:center;justify-content:center;
}
.cs-wx-ic svg{width:19px;height:19px;fill:#fff}
.cs-wx-tx{flex:1;min-width:0}
.cs-wx-tx b{display:block;font-size:11px;color:var(--ink-3);font-weight:400;letter-spacing:.04em}
.cs-wx-tx span{display:block;font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.04em;font-variant-numeric:tabular-nums}
.cs-wx-btns{display:flex;gap:6px;margin-top:9px}
.cs-btn{
  flex:1;height:32px;border-radius:8px;font-size:12.5px;font-weight:600;
  display:flex;align-items:center;justify-content:center;gap:5px;transition:.2s;
}
.cs-btn.wx{background:#07C160;color:#fff}
.cs-btn.wx:hover{background:#06AD56}
.cs-btn.ghost{background:rgba(20,35,27,.05);color:var(--ink-2);border:1px solid rgba(20,35,27,.12)}
.cs-btn.ghost:hover{background:rgba(20,35,27,.09)}
.cs-btn.ink{background:var(--pine);color:var(--cream)}
.cs-btn.ink:hover{background:var(--pine-3)}

/* 电话行 */
.cs-tel{
  margin-top:9px;display:flex;align-items:center;gap:9px;
  background:#fff;border:1px dashed rgba(20,35,27,.2);border-radius:12px;padding:10px 12px;
}
.cs-tel svg{width:17px;height:17px;flex:none;stroke:var(--pine-3)}
.cs-tel a{font-size:14.5px;font-weight:700;color:var(--ink);letter-spacing:.03em}
.cs-tel small{display:block;font-size:11px;color:var(--ink-3);font-weight:400;letter-spacing:0}

/* 留电表单 */
.cs-lead{margin-top:9px;background:#fff;border:1px solid rgba(20,35,27,.12);border-radius:12px;padding:11px 12px}
.cs-lead p{font-size:11.5px;color:var(--ink-3);margin-bottom:8px;line-height:1.6}
.cs-lead-row{display:flex;gap:6px}
.cs-lead input{
  flex:1;min-width:0;height:34px;border:1px solid rgba(20,35,27,.16);border-radius:8px;
  padding:0 10px;font-size:13px;font-family:inherit;background:#FBF9F4;color:var(--ink);
}
.cs-lead input:focus{outline:none;border-color:var(--pine-3);background:#fff}
.cs-lead button{height:34px;padding:0 14px;border-radius:8px;background:var(--pine);color:var(--cream);font-size:12.5px;font-weight:600;white-space:nowrap}
.cs-lead button:hover{background:var(--pine-3)}
.cs-lead button:disabled{opacity:.6}
.cs-lead .cs-ok{font-size:12px;color:#1D9E75;font-weight:600}

/* 快捷问题 */
.cs-chips{
  flex:none;display:flex;gap:6px;overflow-x:auto;padding:9px 14px 0;
  scrollbar-width:none;mask-image:linear-gradient(90deg,#000 88%,transparent);
}
.cs-chips::-webkit-scrollbar{display:none}
.cs-chip{
  flex:none;height:29px;padding:0 11px;border-radius:999px;
  background:rgba(255,255,255,.85);border:1px solid rgba(20,35,27,.14);
  font-size:12px;color:var(--ink-2);white-space:nowrap;transition:.22s;
}
.cs-chip:hover{background:var(--pine);color:var(--cream);border-color:var(--pine)}

/* 输入栏 */
.cs-form{
  flex:none;display:flex;align-items:center;gap:8px;padding:10px 12px 12px;
  background:var(--cream);border-top:1px solid rgba(20,35,27,.08);
}
.cs-form input{
  flex:1;min-width:0;height:40px;border-radius:999px;border:1px solid rgba(20,35,27,.16);
  padding:0 15px;font-size:13px;font-family:inherit;background:#fff;color:var(--ink);
}
.cs-form input::placeholder{color:var(--ink-3)}
.cs-form input:focus{outline:none;border-color:var(--pine-3);box-shadow:0 0 0 3px rgba(27,74,58,.08)}
.cs-send{
  width:40px;height:40px;flex:none;border-radius:50%;background:var(--pine);
  display:flex;align-items:center;justify-content:center;transition:.22s;
}
.cs-send svg{width:17px;height:17px;stroke:var(--lime)}
.cs-send:hover{background:var(--pine-3);transform:scale(1.04)}

/* 底部小字 */
.cs-foot{
  flex:none;text-align:center;font-size:10.5px;color:var(--ink-3);
  padding:0 0 8px;background:var(--cream);letter-spacing:.02em;
}

/* 复制提示：贴在面板内，输入栏上方 */
.cs-toast{
  position:absolute;left:50%;bottom:118px;z-index:5;
  transform:translateX(-50%) translateY(8px);
  background:var(--pine);color:var(--cream);font-size:12.5px;
  padding:9px 15px;border-radius:9px;box-shadow:0 12px 26px rgba(13,42,34,.3);
  opacity:0;pointer-events:none;transition:.3s var(--ease);white-space:nowrap;
}
.cs-toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- 移动端 ---------- */
@media (max-width:620px){
  .cs-fab{right:14px;bottom:14px;height:50px;padding:0 15px 0 13px;font-size:12.5px}
  .cs-fab svg{width:19px;height:19px}
  .cs-teaser{right:14px;bottom:78px;max-width:232px}
  .cs-panel{
    right:0;left:0;bottom:0;width:100%;max-width:none;
    height:86vh;max-height:86vh;border-radius:16px 16px 0 0;border-bottom:0;
  }
  .cs-body{padding:14px 12px 4px}
  .cs-bub{font-size:13.5px;max-width:88%}
  .cs-chips{padding:8px 12px 0}
  .cs-form{padding:9px 10px calc(10px + env(safe-area-inset-bottom))}
  .cs-toast{bottom:calc(76px + env(safe-area-inset-bottom));font-size:12px;max-width:calc(100% - 24px);white-space:normal;text-align:center}
}

@media (prefers-reduced-motion:reduce){
  .cs-fab,.cs-panel,.cs-msg,.cs-toast,.cs-teaser{transition:none;animation:none}
  .cs-dot{animation:none}
}