/* ============================================================
   BotChat 样式
   深色为主，light 主题通过 [data-theme="light"] 覆盖变量
   ============================================================ */

:root{
  --bg:#080a0f;
  --fg:#eef2f8;
  --dim:#9aa6b8;
  --line:rgba(255,255,255,.10);
  --glass:rgba(22,28,40,.58);
  --glass-strong:rgba(18,24,34,.86);
  --card:rgba(255,255,255,.045);
  --card-line:rgba(255,255,255,.06);
  --card-on:rgba(91,140,255,.16);
  --card-on-line:rgba(91,140,255,.35);
  --brand:#5b8cff;
  --brand2:#8b5cf6;
  --bub-in:rgba(30,38,54,.74);
  --bub-out:linear-gradient(135deg,#3b6fe0,#5b8cff);
  /* 气泡皮肤：默认跟随上面两个；抽屉里选了颜色后由 JS 覆盖到 #viewChat 上 */
  --bub-in-bg:var(--bub-in);
  --bub-out-bg:var(--bub-out);
  --bub-in-fg:var(--fg);
  --bub-out-fg:#fff;
  --ok:#22c55e;
  --err:#ef4444;
  --radius:18px;
  --safe-t:env(safe-area-inset-top,0px);
  --safe-b:env(safe-area-inset-bottom,0px);
}

[data-theme="light"]{
  --bg:#eef1f7;
  --fg:#14181f;
  --dim:#68727f;
  --line:rgba(16,24,40,.10);
  --glass:rgba(255,255,255,.62);
  --glass-strong:rgba(255,255,255,.88);
  --card:rgba(255,255,255,.62);
  --card-line:rgba(16,24,40,.06);
  --card-on:rgba(91,140,255,.14);
  --card-on-line:rgba(91,140,255,.32);
  --bub-in:rgba(255,255,255,.86);
  --bub-out:linear-gradient(135deg,#3b6fe0,#5b8cff);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}

html,body{height:100%}
body{
  margin:0;overflow:hidden;
  font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans CJK SC","PingFang SC",sans-serif;
  color:var(--fg);background:var(--bg);
  overscroll-behavior:none;
}

.glass{
  background:var(--glass);
  backdrop-filter:blur(22px) saturate(170%);
  -webkit-backdrop-filter:blur(22px) saturate(170%);
  border:1px solid var(--line);
}

/* ---------------- 视图容器 ---------------- */
.view{
  position:fixed;inset:0;width:100%;min-width:0;display:flex;flex-direction:column;
  transition:transform .30s cubic-bezier(.32,.72,0,1),filter .30s;
  will-change:transform;
}
#viewChat{transform:translateX(100%)}
#viewChat.show{transform:translateX(0)}
#viewChat.drawer-open{transform:scale(.94);transform-origin:15% 50%;filter:brightness(.68)}

.wall{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(520px 400px at 18% -6%,rgba(91,140,255,.30),transparent 65%),
    radial-gradient(520px 430px at 92% 104%,rgba(139,92,246,.28),transparent 65%),
    linear-gradient(170deg,#10151f,#0a0e15 60%,#0d1220);
  background-size:cover;background-position:center;
  transition:background-image .3s;
}
[data-theme="light"] .wall{
  background:
    radial-gradient(520px 400px at 18% -6%,rgba(91,140,255,.22),transparent 65%),
    radial-gradient(520px 430px at 92% 104%,rgba(139,92,246,.18),transparent 65%),
    linear-gradient(170deg,#f7f9ff,#eef1f7 60%,#e9eefb);
}

/* ---------------- 通用小件 ---------------- */
.icon-btn{
  border:0;background:rgba(255,255,255,.10);color:var(--fg);
  width:34px;height:34px;border-radius:12px;font-size:17px;line-height:1;
  display:grid;place-items:center;cursor:pointer;padding:0;flex:0 0 auto;
  border:1px solid var(--line);
}
.icon-btn:active{transform:scale(.94)}
.av{
  width:48px;height:48px;border-radius:16px;flex:0 0 auto;position:relative;
  background:linear-gradient(140deg,#6ea8ff,#8b5cf6);
  display:grid;place-items:center;font-size:18px;font-weight:600;color:#fff;
  text-shadow:0 1px 2px rgba(0,0,0,.35);overflow:hidden;background-size:cover;background-position:center;
  cursor:pointer;
}
.av img{width:100%;height:100%;object-fit:cover;display:block}
.av .dot{position:absolute;right:-1px;bottom:-1px;width:11px;height:11px;border-radius:50%;
  background:var(--ok);border:2.5px solid rgba(10,14,21,.9)}
.hidden{display:none !important}

/* 文件选择框：不用 hidden 属性（部分 iOS WebView 会拦掉程序化 click） */
.filepick{
  position:absolute;left:-9999px;top:0;width:1px;height:1px;
  opacity:0;border:0;padding:0;overflow:hidden;
}

/* ---------------- 页面 A ---------------- */
.ahead{
  position:relative;z-index:5;display:flex;align-items:center;justify-content:space-between;
  padding:calc(env(safe-area-inset-top,0px) + 14px) 18px 12px;
}
.ahead h1{margin:0;font-size:24px;letter-spacing:.5px}
.ahead-r{display:flex;gap:8px}

.cards{position:relative;z-index:5;flex:1;overflow-y:auto;padding:4px 12px calc(env(safe-area-inset-bottom,0px) + 24px);
  -webkit-overflow-scrolling:touch;overscroll-behavior:contain}
.card{
  display:flex;gap:12px;align-items:center;padding:12px;border-radius:var(--radius);margin-bottom:8px;
  background:var(--card);border:1px solid var(--card-line);cursor:pointer;
  transition:transform .12s,background .2s;
  -webkit-user-select:none;user-select:none;
}
.card:active{transform:scale(.985)}
.card.on{background:var(--card-on);border-color:var(--card-on-line)}
.cinfo{flex:1;min-width:0}
.crow{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.cname{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ctime{font-size:11px;color:var(--dim);flex:0 0 auto}
.cprev{font-size:12.5px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px;
  display:flex;align-items:center;gap:5px}
.newdot{width:8px;height:8px;border-radius:50%;background:var(--err);flex:0 0 auto}
.vmini{display:inline-flex;align-items:flex-end;gap:2px;height:10px}
.vmini i{width:2px;background:#8fb4ff;border-radius:2px}
.vmini i:nth-child(1){height:4px}.vmini i:nth-child(2){height:9px}.vmini i:nth-child(3){height:6px}

.empty{
  position:absolute;inset:0;z-index:4;display:none;flex-direction:column;
  align-items:center;justify-content:center;gap:6px;color:var(--dim);padding:0 40px;text-align:center;
}
.empty.show{display:flex}
.empty-ic{font-size:34px;opacity:.7}
.empty-t{font-size:15px;color:var(--fg);font-weight:600}
.empty-s{font-size:12.5px}

/* ---------------- 页面 B ---------------- */
.bhead{
  position:relative;z-index:6;display:flex;align-items:center;gap:10px;
  padding:calc(env(safe-area-inset-top,0px) + 10px) 14px 11px;
  background:var(--glass);border:0;border-bottom:1px solid var(--line);
}
.bhead .icon-btn.back{background:transparent;border:0;font-size:26px;width:28px;height:34px;padding-bottom:6px}
.bhead .av{width:36px;height:36px;border-radius:12px;font-size:14px}
.bhead-txt{flex:1;min-width:0}
.bname{font-size:15px;font-weight:600;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bstat{font-size:10.5px;color:var(--ok);letter-spacing:.3px}
.bstat.busy{color:#fbbf24}
.dots{font-size:18px;letter-spacing:1px;background:transparent;border:0}

.msgs{
  position:relative;z-index:5;flex:1 1 0;min-width:0;width:100%;overflow-y:auto;
  overscroll-behavior:contain;
  -webkit-overflow-scrolling:touch;
  padding:14px 14px 8px;display:flex;flex-direction:column;gap:9px;
}
.tsep{align-self:center;font-size:10px;color:rgba(255,255,255,.34);margin:6px 0}
[data-theme="light"] .tsep{color:rgba(0,0,0,.35)}

.mrow{display:flex;gap:8px;width:100%;max-width:100%;align-items:flex-start;min-width:0}
.mrow.me{justify-content:flex-end}
/* 分段回复的续接行：不占头像位、贴近上一条 */
.mrow.cont{margin-top:-5px;padding-left:38px}
.mrow.me.cont{padding-left:0;padding-right:0}
.mrow .av{width:30px;height:30px;border-radius:10px;font-size:12px;cursor:default}
.bub{
  padding:9px 13px;border-radius:16px;
  /* 注意：这里绝对不能用百分比 max-width。
     父容器宽度依赖子元素宽度时，百分比会形成自引用，
     浏览器只能取 min-content —— 中文就是「一个字一换行」。 */
  max-width:34em;
  font-size:14px;line-height:1.62;
  background:var(--bub-in-bg);color:var(--bub-in-fg);border:1px solid var(--card-line);
  border-bottom-left-radius:6px;white-space:pre-wrap;overflow-wrap:anywhere;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  flex:0 0 auto;min-width:0;
  animation:pop .16s ease-out;
}
@keyframes pop{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.mrow.me .bub{
  background:var(--bub-out-bg);border:0;color:var(--bub-out-fg);
  border-bottom-left-radius:16px;border-bottom-right-radius:6px;
  box-shadow:0 6px 18px -6px rgba(59,111,224,.7);
}
.bub.fail{background:rgba(239,68,68,.18);border:1px solid rgba(239,68,68,.5)}
.thinkchip{
  display:inline-flex;align-items:center;gap:6px;font-size:11px;color:#9db4d6;
  background:rgba(91,140,255,.12);border:1px solid rgba(91,140,255,.22);
  padding:4px 10px;border-radius:9px;margin-bottom:6px;cursor:pointer;
}
.thinkbody{
  font-size:12px;color:var(--dim);border-left:2px solid var(--line);
  padding-left:9px;margin-bottom:7px;white-space:pre-wrap;max-height:140px;overflow:auto;
}
.caret{display:inline-block;width:2px;height:14px;background:#cfe0ff;vertical-align:-2px;
  margin-left:2px;animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}
.ph{color:var(--dim);font-size:13px}

/* 语音条 */
.voice{
  display:flex;align-items:center;gap:10px;padding:10px 14px;
  background:var(--bub-in);border:1px solid var(--card-line);border-radius:16px;
  border-bottom-left-radius:6px;min-width:120px;cursor:pointer;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.voice.playing{border-color:rgba(91,140,255,.6);background:rgba(91,140,255,.16)}
.vplay{width:24px;height:24px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(140deg,#6ea8ff,#8b5cf6);
  display:grid;place-items:center;font-size:9px;color:#fff;padding-left:2px}
.vbars{display:flex;align-items:center;gap:2.5px;height:20px}
.vbars i{width:3px;border-radius:2px;background:linear-gradient(180deg,#9dbbff,#6ea8ff);opacity:.9}
.voice.playing .vbars i{animation:bounce .9s ease-in-out infinite}
.voice.playing .vbars i:nth-child(2){animation-delay:.08s}
.voice.playing .vbars i:nth-child(3){animation-delay:.16s}
.voice.playing .vbars i:nth-child(4){animation-delay:.24s}
.voice.playing .vbars i:nth-child(5){animation-delay:.32s}
.voice.playing .vbars i:nth-child(6){animation-delay:.40s}
.voice.playing .vbars i:nth-child(7){animation-delay:.48s}
@keyframes bounce{0%,100%{transform:scaleY(1)}50%{transform:scaleY(.45)}}
.vsec{font-size:11px;color:var(--dim);margin-left:auto;padding-left:8px}

.jump{
  position:absolute;bottom:86px;left:50%;transform:translateX(-50%) translateY(14px);
  z-index:7;opacity:0;pointer-events:none;transition:.2s;
  padding:6px 14px;border-radius:16px;font-size:12px;color:#fff;
  background:rgba(91,140,255,.9);border:0;box-shadow:0 8px 20px -8px rgba(0,0,0,.7);
}
.jump.show{opacity:1;pointer-events:auto;transform:translateX(-50%) translateY(0)}

/* 输入区 */
.pluspanel{
  position:relative;z-index:6;display:flex;gap:10px;margin:0 10px 8px;padding:12px;border-radius:18px;
}
.pl{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;padding:9px 4px;
  border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--fg);font:inherit;cursor:pointer;
}
.pl:active{transform:scale(.97)}
.pl .ic{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;font-size:15px;color:#fff}
.pl span:last-child{font-size:10.5px;color:var(--dim);text-align:center;line-height:1.3}

.composer{
  position:relative;z-index:6;display:flex;align-items:flex-end;gap:8px;
  padding:8px 10px;margin:0 8px calc(env(safe-area-inset-bottom,0px) + 8px);
  border-radius:22px;
}
.cbtn{
  width:32px;height:32px;border-radius:11px;flex:0 0 auto;border:1px solid var(--line);
  background:rgba(255,255,255,.09);color:var(--fg);font-size:17px;line-height:1;
  display:grid;place-items:center;cursor:pointer;padding:0;
}
.composer textarea{
  flex:1 1 0;min-width:0;width:100%;min-height:32px;max-height:110px;resize:none;border:0;outline:none;
  background:rgba(255,255,255,.06);border-radius:12px;padding:8px 12px;
  font:inherit;font-size:14px;color:var(--fg);line-height:1.5;
}
.composer textarea::placeholder{color:var(--dim)}
.send{
  width:32px;height:32px;border-radius:50%;flex:0 0 auto;border:0;cursor:pointer;
  background:var(--bub-out);color:#fff;font-size:14px;
  display:grid;place-items:center;box-shadow:0 6px 16px -6px rgba(59,111,224,.9);
}
.send:disabled{opacity:.45;box-shadow:none}

/* ---------------- 抽屉 ---------------- */
.shade{
  position:fixed;inset:0;z-index:20;background:rgba(4,6,10,.42);
  opacity:0;pointer-events:none;transition:opacity .26s;
}
.shade.open{opacity:1;pointer-events:auto}

.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:21;
  width:min(300px,84vw);display:flex;flex-direction:column;
  padding:calc(env(safe-area-inset-top,0px) + 18px) 16px calc(env(safe-area-inset-bottom,0px) + 16px);
  border-radius:26px 0 0 26px;border-right:0;
  background:var(--glass-strong);
  transform:translateX(103%);transition:transform .30s cubic-bezier(.32,.72,0,1);
  box-shadow:-18px 0 48px -12px rgba(0,0,0,.7);
  will-change:transform;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.dtitle{display:flex;align-items:center;justify-content:space-between;
  font-size:13px;font-weight:600;margin-bottom:16px}
.dclose{background:rgba(91,140,255,.18);border:1px solid rgba(91,140,255,.35);color:#bcd2ff;
  font:inherit;font-size:12px;padding:4px 12px;border-radius:9px;cursor:pointer}
[data-theme="light"] .dclose{color:#2b4f8a}

.davwrap{display:flex;flex-direction:column;align-items:center;gap:7px;margin-bottom:18px}
.dav{
  width:76px;height:76px;border-radius:24px;position:relative;cursor:pointer;
  background:linear-gradient(140deg,#6ea8ff,#8b5cf6);background-size:cover;background-position:center;
  display:grid;place-items:center;font-size:27px;font-weight:600;color:#fff;overflow:visible;
}
.dav em{position:absolute;right:-5px;bottom:-5px;width:25px;height:25px;border-radius:50%;
  background:#1b2130;border:1px solid var(--line);display:grid;place-items:center;
  font-style:normal;font-size:11px;color:var(--fg)}
.davhint{font-size:10.5px;color:var(--dim)}

.field{margin-bottom:15px}
.field label{display:block;font-size:11px;color:var(--dim);margin-bottom:6px}
.field label span{color:#8fb4ff}

.labelrow{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.labelrow label{margin-bottom:0}
.mini-btn{
  background:rgba(91,140,255,.18);border:1px solid rgba(91,140,255,.35);color:#bcd2ff;
  font:inherit;font-size:11px;padding:2px 10px;border-radius:8px;cursor:pointer;line-height:1.6;
}
[data-theme="light"] .mini-btn{color:#2b4f8a}
.ro-box{
  background:rgba(255,255,255,.04);border:1px dashed var(--line);border-radius:11px;
  padding:9px 11px;font-size:12.5px;color:var(--dim);white-space:pre-wrap;
  max-height:130px;overflow:auto;line-height:1.65;
}
[data-theme="light"] .ro-box{background:rgba(16,24,40,.03)}
textarea.finput{resize:vertical;min-height:76px;line-height:1.6}
.finput{
  width:100%;background:rgba(255,255,255,.07);border:1px solid var(--line);border-radius:11px;
  padding:9px 11px;font:inherit;font-size:13.5px;color:var(--fg);outline:none;
}
.finput:focus{border-color:rgba(91,140,255,.6)}
[data-theme="light"] .finput{background:rgba(16,24,40,.04)}

.bgrow{display:flex;gap:8px;flex-wrap:wrap}
.bgpick{width:44px;height:44px;border-radius:12px;border:2px solid transparent;cursor:pointer;padding:0;
  background-size:cover;background-position:center}
.bgpick.on{border-color:var(--brand)}
.bgpick.b1{background:linear-gradient(140deg,#1e293b,#0f172a)}
.bgpick.b2{background:linear-gradient(140deg,#22406b,#5b8cff)}
.bgpick.b3{background:linear-gradient(140deg,#3b0764,#8b5cf6)}
.bgpick.add{background:rgba(255,255,255,.06);border:1px dashed rgba(255,255,255,.28);
  display:grid;place-items:center;font-size:16px;color:var(--dim)}

.range{-webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:2px;
  background:rgba(255,255,255,.14);outline:none}
.range::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;
  background:#fff;border:0;box-shadow:0 1px 4px rgba(0,0,0,.4)}
.range::-moz-range-thumb{width:14px;height:14px;border:0;border-radius:50%;background:#fff}

.dfoot{
  margin-top:auto;text-align:center;padding:11px;border-radius:12px;font-size:12.5px;
  border:1px solid var(--line);color:var(--dim);cursor:pointer;background:rgba(255,255,255,.04);
}

/* 气泡皮肤：色块 */
.swrow{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:9px}
.sw{
  width:26px;height:26px;border-radius:9px;border:2px solid transparent;cursor:pointer;padding:0;
  background:var(--c,#444);position:relative;
}
.sw.on{border-color:#fff;box-shadow:0 0 0 2px rgba(91,140,255,.55)}
.sw.def{
  width:auto;padding:0 9px;font-size:11px;color:var(--dim);background:rgba(255,255,255,.06);
  border:1px solid var(--line);display:grid;place-items:center;
}

/* ---------------- 登录 ---------------- */
.gate{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;
  background:var(--bg);padding:24px}
.gate.hide{display:none}
.gate-card{width:100%;max-width:320px;padding:28px 22px;border-radius:24px;
  display:flex;flex-direction:column;align-items:center;gap:12px}
.gate-logo{font-size:26px;font-weight:700;letter-spacing:.5px}
.gate-logo span{color:var(--brand)}
.gate-sub{font-size:12.5px;color:var(--dim);margin-bottom:4px}
.gate-input{width:100%;text-align:center;padding:11px;border-radius:12px;
  background:rgba(255,255,255,.07);border:1px solid var(--line);color:var(--fg);font:inherit;outline:none}
.gate-btn{width:100%;padding:11px;border-radius:12px;border:0;cursor:pointer;font:inherit;font-weight:600;
  color:#fff;background:var(--bub-out);box-shadow:0 8px 20px -8px rgba(59,111,224,.9)}
.gate-err{font-size:12px;color:var(--err);min-height:16px}

/* ---------------- 背景裁剪 ---------------- */
.crop{
  position:fixed;inset:0;z-index:70;display:flex;align-items:center;justify-content:center;
  background:rgba(4,6,10,.86);padding:18px;
}
.crop.hide{display:none}
.crop-box{width:min(92vw,400px);display:flex;flex-direction:column;gap:12px}
.crop-tip{font-size:12px;color:var(--dim);text-align:center}
.crop-stage{
  position:relative;width:100%;min-height:240px;aspect-ratio:9/16;overflow:hidden;
  border-radius:18px;border:1px solid var(--line);background:#05070b;
  touch-action:none;cursor:grab;
}
.crop-stage:active{cursor:grabbing}
.crop-stage img{
  position:absolute;left:0;top:0;user-select:none;-webkit-user-drag:none;
  pointer-events:none;max-width:none;
}
.crop-actions{display:flex;gap:10px}
.crop-btn{
  flex:1;padding:11px;border-radius:12px;border:1px solid var(--line);cursor:pointer;
  font:inherit;font-size:13.5px;background:rgba(255,255,255,.07);color:var(--fg);
}
.crop-btn.primary{border:0;color:#fff;background:var(--bub-out);font-weight:600}

/* ---------------- 提示 ---------------- */
.toast{
  position:fixed;left:50%;bottom:96px;transform:translate(-50%,10px);z-index:60;
  padding:9px 18px;border-radius:14px;font-size:13px;color:#fff;
  background:rgba(20,26,38,.94);border:1px solid var(--line);
  opacity:0;pointer-events:none;transition:.22s;max-width:80vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}