:root{
  --ink:#1f3a34;
  --muted:#5f756c;
  --soft:#8aa094;
  --sage:#3f6f5f;
  --sage-deep:#2d5749;
  --mist:#d7e6df;
  --foam:#eef6f1;
  --apricot:#e8b48a;
  --paper:rgba(255,255,255,.58);
  --line:rgba(63,111,95,.16);
  --shadow:0 18px 50px rgba(31,70,58,.12);
  --display:"ZCOOL XiaoWei","Noto Sans SC",sans-serif;
  --body:"Noto Sans SC",sans-serif;
  font-family:var(--body);
  color:var(--ink);
  font-synthesis:none;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{
  min-height:100vh;
  background:
    radial-gradient(1200px 700px at 12% -10%,rgba(232,180,138,.28),transparent 55%),
    radial-gradient(900px 600px at 92% 8%,rgba(122,168,150,.22),transparent 50%),
    linear-gradient(160deg,#e7f2ec 0%,#f3f8f5 42%,#e8f1ec 100%);
  color:var(--ink);
  overflow-x:hidden;
}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0;background:none;transition:transform .2s ease,background .2s ease,opacity .2s ease,box-shadow .2s ease}
button:disabled{opacity:.42;cursor:not-allowed}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--apricot);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.glow{position:fixed;border-radius:50%;filter:blur(40px);pointer-events:none;z-index:0}
.glow-a{width:280px;height:280px;left:-60px;top:20%;background:rgba(232,180,138,.22)}
.glow-b{width:340px;height:340px;right:-80px;bottom:8%;background:rgba(98,150,132,.18)}

.topbar,.stage,footer{position:relative;z-index:1}
.topbar{
  display:grid;
  grid-template-columns:auto 1fr auto auto;
  align-items:end;
  gap:10px 18px;
  max-width:1280px;
  margin:0 auto;
  padding:28px 36px 8px;
}
.brand{
  font-family:var(--display);
  font-size:34px;
  letter-spacing:.08em;
  color:var(--sage-deep);
  text-decoration:none;
  line-height:1;
}
.brand-sub{margin:0;font-size:12px;color:var(--muted);letter-spacing:.18em}
.mode{
  justify-self:end;
  font-size:12px;
  color:var(--sage);
  border:1px solid var(--line);
  background:rgba(255,255,255,.45);
  padding:7px 12px;
  border-radius:999px;
}
.ghost{
  color:var(--muted);
  padding:8px 12px;
  border-radius:999px;
}
.ghost:hover:not(:disabled){background:rgba(63,111,95,.08);color:var(--sage-deep)}

.stage{
  max-width:1280px;
  margin:0 auto;
  padding:12px 36px 24px;
  display:grid;
  grid-template-columns:minmax(280px,.92fr) minmax(0,1.15fr);
  gap:36px;
  min-height:calc(100vh - 140px);
  align-items:stretch;
}
.companion{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:22px;
  padding:12px 8px 24px;
}
.portrait-wrap{
  position:relative;
  width:min(100%,420px);
  margin:0 auto;
  aspect-ratio:3/4;
}
.portrait-halo{
  position:absolute;
  inset:8% 10% 4%;
  border-radius:46% 46% 42% 42%;
  background:radial-gradient(circle at 50% 40%,rgba(255,255,255,.55),rgba(232,180,138,.18) 42%,rgba(63,111,95,.08) 70%,transparent 78%);
  animation:breathe 5.5s ease-in-out infinite;
}
.portrait{
  position:relative;
  z-index:1;
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center top;
  border-radius:42% 42% 34% 34% / 36% 36% 48% 48%;
  box-shadow:var(--shadow);
  animation:floaty 6.5s ease-in-out infinite;
}
.companion-copy{max-width:420px;margin:0 auto;text-align:center}
.companion-copy h1{
  font-family:var(--display);
  font-size:clamp(34px,3.4vw,48px);
  font-weight:400;
  line-height:1.35;
  margin:0 0 14px;
  color:var(--sage-deep);
  letter-spacing:.04em;
}
.companion-copy p{margin:0;color:var(--muted);line-height:1.85;font-size:15px}
.care-note{margin-top:14px!important;font-size:12px!important;color:var(--soft)!important}

.cabin{
  display:flex;
  flex-direction:column;
  min-width:0;
  min-height:0;
  background:linear-gradient(180deg,rgba(255,255,255,.66),rgba(255,255,255,.42));
  border:1px solid var(--line);
  border-radius:28px 28px 22px 22px;
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:18px 18px 14px;
}
.cabin-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:4px 6px 14px;
  border-bottom:1px solid var(--line);
}
.status-line{display:flex;align-items:center;gap:10px;font-size:14px}
.pulse{
  width:9px;height:9px;border-radius:50%;
  background:var(--sage);
  box-shadow:0 0 0 0 rgba(63,111,95,.35);
  animation:pulse 2.4s ease-out infinite;
}
.pulse.listening{background:#c45b4b;animation:pulse-hot 1.1s ease-out infinite}
.pulse.busy{background:var(--apricot)}

.messages{
  flex:1;
  min-height:280px;
  max-height:min(48vh,460px);
  overflow:auto;
  padding:18px 8px 8px;
  scroll-behavior:smooth;
}
.bubble{max-width:88%;margin-bottom:16px}
.bubble span{display:block;font-size:11px;color:var(--soft);margin-bottom:6px;letter-spacing:.08em}
.bubble p{
  margin:0;
  padding:14px 18px;
  line-height:1.85;
  font-size:15px;
  white-space:pre-wrap;
  overflow-wrap:anywhere;
  background:var(--foam);
  border:1px solid rgba(63,111,95,.08);
  border-radius:4px 18px 18px 18px;
  color:var(--ink);
}
.bubble.user{margin-left:auto}
.bubble.user span{text-align:right}
.bubble.user p{
  background:linear-gradient(145deg,var(--sage),var(--sage-deep));
  color:#f7fffb;
  border:0;
  border-radius:18px 4px 18px 18px;
}
.bubble.enter{animation:rise .45s ease both}

.handoff{
  margin:8px;
  padding:14px 16px;
  border-radius:16px;
  background:rgba(232,180,138,.22);
  border:1px solid rgba(232,180,138,.35);
  color:var(--sage-deep);
  font-size:14px;
  line-height:1.7;
}
.suggestions{display:flex;flex-wrap:wrap;gap:8px;padding:8px 6px 12px}
.suggestions button{
  font-size:12px;
  color:var(--sage);
  border:1px solid var(--line);
  background:rgba(255,255,255,.4);
  border-radius:999px;
  padding:8px 12px;
}
.suggestions button:hover:not(:disabled){background:rgba(63,111,95,.08)}

.composer{
  margin:0 2px;
  padding:14px;
  border-radius:18px;
  background:rgba(255,255,255,.72);
  border:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:18px;
}
.draft-box{
  padding:2px 2px 8px;
  border-bottom:1px solid var(--line);
}
textarea{
  display:block;
  width:100%;
  border:0;
  resize:vertical;
  min-height:72px;
  max-height:160px;
  background:transparent;
  color:var(--ink);
  line-height:1.7;
  padding:4px 2px;
  margin:0;
}
textarea::placeholder{color:#9bb0a6}
.composer-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin:0;
  padding:0;
}
#count{font-size:11px;color:var(--soft);margin-right:auto}
.voice-toggle{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}
input[type=checkbox]{accent-color:var(--sage)}
.primary,.mic{
  border-radius:999px;
  padding:11px 18px;
  font-size:14px;
  font-weight:500;
}
.primary{background:var(--sage);color:#fff;box-shadow:0 8px 20px rgba(45,87,73,.2)}
.primary:hover:not(:disabled){background:var(--sage-deep);transform:translateY(-1px)}
.primary.wide{width:100%;margin-top:8px}
.mic{background:rgba(63,111,95,.1);color:var(--sage-deep)}
.mic.recording{
  background:#c45b4b;
  color:#fff;
  animation:pulse-hot 1.1s ease-out infinite;
}
#feedback{min-height:22px;margin:10px 6px 2px;font-size:12px;color:var(--muted);line-height:1.6}
footer{
  text-align:center;
  color:var(--soft);
  font-size:11px;
  letter-spacing:.16em;
  padding:8px 16px 28px;
}

dialog{
  border:1px solid var(--line);
  border-radius:28px;
  width:min(420px,92vw);
  padding:28px 26px 24px;
  background:linear-gradient(180deg,#f7fbf8,#eef5f1);
  color:var(--ink);
  box-shadow:var(--shadow);
}
dialog::backdrop{background:rgba(24,48,42,.45);backdrop-filter:blur(6px)}
dialog form{display:flex;flex-direction:column;gap:8px}
.login-portrait{
  width:112px;height:148px;object-fit:cover;object-position:center top;
  border-radius:40% 40% 32% 32%;
  margin:0 auto 6px;
  box-shadow:0 12px 30px rgba(31,70,58,.16);
  animation:floaty 5.5s ease-in-out infinite;
}
dialog h2{
  font-family:var(--display);
  font-size:32px;
  font-weight:400;
  text-align:center;
  margin:4px 0 0;
  color:var(--sage-deep);
}
dialog p{margin:0;text-align:center;color:var(--muted);font-size:14px;line-height:1.7}
dialog label{font-size:12px;color:var(--soft);margin-top:8px}
dialog input{
  width:100%;
  padding:12px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.8);
}
#loginError{color:#a24b3d;min-height:18px;font-size:13px}

@keyframes breathe{
  0%,100%{transform:scale(1);opacity:.9}
  50%{transform:scale(1.05);opacity:1}
}
@keyframes floaty{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-6px)}
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(63,111,95,.35)}
  70%{box-shadow:0 0 0 10px rgba(63,111,95,0)}
  100%{box-shadow:0 0 0 0 rgba(63,111,95,0)}
}
@keyframes pulse-hot{
  0%{box-shadow:0 0 0 0 rgba(196,91,75,.4)}
  70%{box-shadow:0 0 0 10px rgba(196,91,75,0)}
  100%{box-shadow:0 0 0 0 rgba(196,91,75,0)}
}
@keyframes rise{
  from{opacity:0;transform:translateY(10px)}
  to{opacity:1;transform:translateY(0)}
}

body:fullscreen{overflow:auto}

@media (max-width:960px){
  .topbar{padding:20px 18px 4px;gap:8px 12px}
  .brand{font-size:28px}
  .stage{
    grid-template-columns:1fr;
    gap:10px;
    padding:8px 14px 18px;
    min-height:auto;
  }
  .companion{
    flex-direction:row;
    align-items:center;
    gap:14px;
    padding:4px 2px 8px;
    text-align:left;
  }
  .portrait-wrap{width:96px;flex:0 0 96px;margin:0}
  .companion-copy{margin:0;text-align:left;max-width:none}
  .companion-copy h1{font-size:26px;margin-bottom:6px}
  .companion-copy p{font-size:13px;line-height:1.65}
  .care-note{display:none}
  .cabin{
    border-radius:22px;
    min-height:calc(100vh - 220px);
  }
  .messages{max-height:none;flex:1}
  .composer{position:sticky;bottom:0}
}

@media (max-width:560px){
  .topbar{grid-template-columns:1fr auto;align-items:center}
  .brand-sub{display:none}
  .mode{justify-self:start;grid-column:1}
  #fullscreen{grid-column:2;grid-row:1}
  .companion-copy h1{font-size:22px}
  .composer-row .ghost:nth-of-type(1){display:none}
  .bubble{max-width:94%}
  footer{letter-spacing:.06em}
}