:root{
  --accent:#8a6a35;--accent-ink:#fff;
  --bg:#e9e1d1;--dots:rgba(138,106,53,.13);
  --in:#fff;--out:#f1e4c3;--text:#1f1b16;--muted:#8c8274;
  --bar:#fff;--line:#e8e2d6;--wa:#25d366;
}
@media (prefers-color-scheme:dark){
  :root{--accent:#4a3a1f;--bg:#15120e;--dots:rgba(255,235,190,.05);--in:#262019;--out:#5b4620;--text:#f1ebe0;--muted:#a69b8a;--bar:#1c1812;--line:#2d261c}
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html{height:100%;background:#d8cfbd}
@media (prefers-color-scheme:dark){html{background:#0b0906}}
html,body{margin:0;overflow:hidden;overscroll-behavior:none}
body{
  height:var(--app-h,100dvh);display:flex;flex-direction:column;
  font:15px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Noto Sans SC","Microsoft YaHei",Roboto,sans-serif;
  color:var(--text);background:var(--bg);
}
@media (min-width:640px){body{max-width:480px;margin:0 auto;box-shadow:0 0 40px rgba(0,0,0,.25)}}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
a{color:inherit}

/* 顶部栏 */
.top{
  flex:none;display:flex;align-items:center;gap:2px;background:var(--accent);color:var(--accent-ink);
  padding:calc(env(safe-area-inset-top) + 6px) calc(env(safe-area-inset-right) + 6px) 6px calc(env(safe-area-inset-left) + 6px);
  box-shadow:0 1px 3px rgba(0,0,0,.25);z-index:2;
}
.who{flex:1;min-width:0;display:flex;align-items:center;gap:10px;text-align:left;padding:4px 6px;border-radius:10px}
.who:active{background:rgba(255,255,255,.12)}
.avatar{
  flex:none;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,#e8c98a,#b88a3e);color:#fff;font-weight:700;font-size:20px;
}
.meta{min-width:0;display:flex;flex-direction:column}
.meta b{font-size:16px;font-weight:600;line-height:1.2}
.meta small{font-size:12.5px;opacity:.85;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.icon{flex:none;width:44px;height:44px;display:grid;place-items:center;border-radius:50%;color:#fff;text-decoration:none}
.icon:active{background:rgba(255,255,255,.18)}

/* 安装提示 */
.install{flex:none;display:flex;align-items:center;gap:8px;padding:8px 8px 8px 14px;background:var(--bar);border-bottom:1px solid var(--line);font-size:13px}
.install span{flex:1}
.install button#install-btn{background:var(--accent);color:#fff;border-radius:16px;padding:5px 14px;font-weight:600}
.install button#install-close{opacity:.6;padding:6px}

/* 消息列表 */
.list{
  flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;
  padding:10px calc(env(safe-area-inset-right) + 8px) 6px calc(env(safe-area-inset-left) + 8px);
  background-color:var(--bg);background-image:radial-gradient(var(--dots) 1.3px,transparent 1.5px);background-size:22px 22px;
}
.day{display:table;margin:8px auto;padding:3px 12px;border-radius:12px;background:rgba(0,0,0,.28);color:#fff;font-size:12.5px;font-weight:500}
.msg{display:flex;margin:0 0 4px}
.msg.out{justify-content:flex-end}
.bubble{
  position:relative;max-width:82%;padding:7px 10px 6px;border-radius:14px;word-wrap:break-word;overflow-wrap:anywhere;
  box-shadow:0 1px 1.5px rgba(0,0,0,.13);white-space:pre-wrap;
}
.in .bubble{background:var(--in);border-bottom-left-radius:4px}
.out .bubble{background:var(--out);border-bottom-right-radius:4px}
.bubble .time{float:right;margin:6px 0 -3px 10px;font-size:11px;color:var(--muted);line-height:1;user-select:none}
.bubble::after{content:"";display:block;clear:both}

/* 打字中 */
.typing{display:inline-flex;gap:4px;padding:12px 14px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:b 1.1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes b{0%,60%,100%{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}

/* 产品卡片(横向滑动) */
.cards{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding:0 8px;margin:0;padding:2px 8px 4px;scrollbar-width:none}
.cards::-webkit-scrollbar{display:none}
.card{flex:none;width:210px;scroll-snap-align:start;text-align:left;padding:0;border:0;font:inherit;color:inherit;cursor:pointer;background:var(--in);border-radius:14px;overflow:hidden;text-decoration:none;box-shadow:0 1px 2px rgba(0,0,0,.15);display:flex;flex-direction:column}
.card .thumb{height:150px;background:linear-gradient(100deg,#ece7dd 30%,#f6f2ea 50%,#ece7dd 70%) 0 0/200% 100%;animation:shimmer 1.4s linear infinite}
.card .thumb img{width:100%;height:100%;object-fit:cover;display:block;opacity:0;transition:opacity .6s ease}
.card .thumb img.loaded{opacity:1}
@keyframes shimmer{to{background-position:-200% 0}}
.card .info{padding:8px 11px 10px;display:flex;flex-direction:column;gap:1px}
.card strong{font-size:14.5px;font-weight:600}
.card span{font-size:12.5px;color:var(--muted)}
.card em{margin-top:6px;font-style:normal;font-size:13px;font-weight:600;color:var(--accent)}
@media (prefers-color-scheme:dark){.card em{color:#e8c98a}}

/* 内联按钮(WhatsApp) */
.kb{display:flex;flex-direction:column;gap:4px}
.kb a{
  display:flex;align-items:center;justify-content:center;gap:8px;padding:10px 12px;border-radius:12px;
  background:var(--wa);color:#fff;text-decoration:none;font-weight:600;font-size:14px;box-shadow:0 1px 2px rgba(0,0,0,.2);
}
.kb a:active{filter:brightness(.92)}
.kb .branches-btn{
  display:flex;align-items:center;justify-content:center;padding:10px 12px;border-radius:12px;
  background:var(--accent);color:#fff;font-weight:600;font-size:14px;box-shadow:0 1px 2px rgba(0,0,0,.2);
}
.kb .branches-btn:active{filter:brightness(.92)}

/* ---- 出场动画:顺顺地一个一个出来 ---- */
:root{--ease:cubic-bezier(.22,.9,.28,1)}

/* 气泡轻轻浮起 */
.msg{animation:pop .38s var(--ease) both}
.msg.still{animation:none}
@keyframes pop{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:none}}

/* 卡片区 / 按钮区:高度从 0 缓缓展开(grid 0fr → 1fr),下面的内容不会"咚"地被顶下去 */
.reveal{display:grid;grid-template-rows:0fr;transition:grid-template-rows .55s var(--ease)}
.reveal.open{grid-template-rows:1fr}
.reveal>.inner{min-height:0;overflow:hidden;padding-bottom:3px}
.cards-reveal{margin:2px -8px 6px}
.kb-reveal{max-width:82%;margin:2px 0 6px}

/* 卡片从右边滑入,同时淡入、由小变大 */
.cards .card{opacity:0;transform:translateX(44px) scale(.93);transition:opacity .5s ease,transform .65s var(--ease)}
.cards .card.in{opacity:1;transform:none}

/* 按钮依次从下面浮上来 */
.kb>*{opacity:0;transform:translateY(10px);transition:opacity .4s ease,transform .5s var(--ease)}
.kb>*.in{opacity:1;transform:none}

/* 系统设置了"减少动态效果"的人,不播放动画 */
@media (prefers-reduced-motion:reduce){
  .msg,.reveal,.cards .card,.kb>*,.card .thumb img{animation:none!important;transition:none!important}
  .card .thumb{animation:none}
}

/* 快捷回复 */
.chips{flex:none;display:flex;gap:8px;overflow-x:auto;padding:8px calc(env(safe-area-inset-right) + 8px) 2px calc(env(safe-area-inset-left) + 8px);background:var(--bar);border-top:1px solid var(--line);scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chips button{flex:none;border:1px solid var(--line);border-radius:18px;padding:6px 14px;font-size:14px;background:var(--bar);white-space:nowrap}
.chips button:active{background:var(--line)}

/* 输入栏 */
.composer{
  flex:none;display:flex;align-items:flex-end;gap:8px;background:var(--bar);
  padding:8px calc(env(safe-area-inset-right) + 8px) calc(env(safe-area-inset-bottom) + 8px) calc(env(safe-area-inset-left) + 8px);
}
.chips[hidden]+.composer{border-top:1px solid var(--line)}
.composer textarea{
  flex:1;resize:none;max-height:120px;border:1px solid var(--line);border-radius:20px;padding:9px 16px;
  font:inherit;font-size:16px;line-height:1.35;background:transparent;color:inherit;outline:none;
}
.composer textarea:focus{border-color:var(--accent)}
.send{
  flex:none;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:var(--accent);color:#fff;transition:opacity .15s,transform .15s;
}
.send:disabled{opacity:.35;transform:scale(.92)}
@media (prefers-color-scheme:dark){.send{background:#b88a3e}}

/* 产品详情:全屏弹窗 */
.pdp{
  position:fixed;inset:0;z-index:20;max-width:480px;margin:0 auto;display:flex;flex-direction:column;
  background:var(--bar);animation:up .25s ease-out;
}
.pdp-top{
  flex:none;display:flex;align-items:center;gap:6px;background:var(--accent);color:#fff;
  padding:calc(env(safe-area-inset-top) + 6px) 12px 6px 4px;box-shadow:0 1px 3px rgba(0,0,0,.25);
}
.pdp-back{flex:none;width:44px;height:44px;display:grid;place-items:center;border-radius:50%;color:#fff}
.pdp-back:active{background:rgba(255,255,255,.18)}
.pdp-heading{min-width:0;display:flex;flex-direction:column}
.pdp-heading b{font-size:16px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pdp-heading small{font-size:12.5px;opacity:.85}
.pdp-scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}
.gallery-wrap{position:relative;background:#f4f1ea}
.gallery{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.gallery::-webkit-scrollbar{display:none}
.gallery img{flex:none;width:100%;height:min(78vw,380px);object-fit:contain;scroll-snap-align:center;background:#f4f1ea}
.count{position:absolute;right:10px;bottom:10px;padding:2px 10px;border-radius:12px;background:rgba(0,0,0,.5);color:#fff;font-size:12.5px}
.pdp-body{padding:14px 18px 24px;line-height:1.55}
.pdp-body h3{margin:16px 0 6px;font-size:15px;color:var(--accent)}
@media (prefers-color-scheme:dark){.pdp-body h3{color:#e8c98a}}
.pdp-body h3:first-child{margin-top:0}
.pdp-body p{margin:0 0 8px}
.pdp-body ul{margin:0 0 8px;padding-left:20px}
.pdp-body li{margin:4px 0}
.muted{color:var(--muted)}
.pdp-foot{
  flex:none;display:flex;gap:10px;padding:10px 12px calc(env(safe-area-inset-bottom) + 10px);
  background:var(--bar);border-top:1px solid var(--line);
}
.pdp-foot .ask{flex:1.4;display:flex;align-items:center;justify-content:center;padding:12px;border-radius:12px;background:var(--wa);color:#fff;font-weight:600;text-decoration:none}
.pdp-foot .more{flex:1;padding:12px;border-radius:12px;border:1px solid var(--accent);color:var(--accent);font-weight:600}
@media (prefers-color-scheme:dark){.pdp-foot .more{color:#e8c98a;border-color:#e8c98a}}

/* 分行弹窗(底部上滑) */
.sheet{position:fixed;inset:0;z-index:10;display:flex;justify-content:center;align-items:flex-end}
.backdrop{position:absolute;inset:0;background:rgba(0,0,0,.45);animation:fade .2s}
.panel{
  position:relative;width:100%;max-width:480px;max-height:86%;overflow-y:auto;background:var(--bar);
  border-radius:18px 18px 0 0;padding:6px 16px calc(env(safe-area-inset-bottom) + 16px);animation:up .25s ease-out;
}
.grab{width:38px;height:4px;border-radius:2px;background:var(--line);margin:4px auto 6px}
.panel-head{display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--bar);padding:4px 0 8px}
.panel-head h2{margin:0;font-size:18px}
.x{width:36px;height:36px;display:grid;place-items:center;border-radius:50%;color:var(--muted)}
.x:active{background:var(--line)}
.branches{list-style:none;margin:0;padding:0}
.branches li{padding:12px 0;border-top:1px solid var(--line)}
.b-name{font-weight:600;font-size:16px}
.tag{display:inline-block;margin-left:4px;padding:1px 8px;border-radius:9px;background:var(--accent);color:#fff;font-size:11.5px;font-weight:500;vertical-align:1px}
.addr{margin:3px 0 8px;color:var(--muted);font-size:13.5px;line-height:1.45}
.b-actions{display:flex;gap:8px;flex-wrap:wrap}
.b-actions a{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:16px;border:1px solid var(--line);text-decoration:none;font-size:13.5px;font-weight:500}
.b-actions a:active{background:var(--line)}
.phone{display:block;margin-top:6px;color:var(--muted);font-size:12.5px}
.clear{display:block;margin:10px auto 0;color:var(--muted);font-size:13px;text-decoration:underline;padding:8px}
@keyframes up{from{transform:translateY(40px);opacity:0}to{transform:none;opacity:1}}
@keyframes fade{from{opacity:0}to{opacity:1}}