:root {
  --green: #4a7c59;
  --green-light: #eaf5ec;
  --bg: #f7f5f0;
  --card: #ffffff;
  --text: #2c3e33;
  --muted: #7a8a7e;
  --danger: #b3543f;
}
* { box-sizing: border-box; margin: 0; }
body {
  font-family: -apple-system, "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--card);
  border-bottom: 1px solid #e3e0d8;
}
.logo { font-weight: 700; color: var(--green); }
.hello { color: var(--muted); font-size: 14px; }
.content { padding: 16px; padding-bottom: 76px; max-width: 640px; margin: 0 auto; }
.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 10;
  display: flex; background: var(--card); border-top: 1px solid #e3e0d8;
}
.tabbar a {
  flex: 1; text-align: center; padding: 10px 0; text-decoration: none;
  color: var(--muted); font-size: 12px;
}
.tabbar a.active { color: var(--green); font-weight: 600; }
.tabbar a .ico { display: block; font-size: 20px; }
.card {
  background: var(--card); border-radius: 12px; padding: 14px 16px;
  margin-bottom: 12px; box-shadow: 0 1px 3px rgba(44, 62, 51, 0.08);
}
.card .meta { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.card .meta .badge {
  display: inline-block; background: var(--green-light); color: var(--green);
  border-radius: 8px; padding: 0 8px; margin-right: 6px; font-size: 12px;
}
textarea, input[type="text"], input[type="password"], select {
  width: 100%; padding: 10px; border: 1px solid #d8d5cc; border-radius: 10px;
  font-size: 16px; font-family: inherit; background: #fff; margin-bottom: 10px;
}
textarea { min-height: 120px; resize: vertical; }
button {
  padding: 10px 18px; border: none; border-radius: 10px; font-size: 15px;
  background: var(--green); color: #fff; cursor: pointer;
}
button.ghost { background: transparent; color: var(--green); border: 1px solid var(--green); }
button.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); padding: 4px 10px; font-size: 13px; }
button:disabled { opacity: 0.5; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.hint { color: var(--muted); font-size: 13px; }
.review-card { background: var(--green-light); border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; }
.review-card .review-title { color: var(--green); font-weight: 600; margin-bottom: 4px; }
img.att, video.att { max-width: 100%; border-radius: 10px; margin-top: 8px; }
audio { width: 100%; margin-top: 8px; }
.transcript { color: var(--muted); font-size: 14px; margin-top: 4px; }
.vision-desc { color: var(--muted); font-size: 13px; margin-top: 4px; }
.msg { margin-bottom: 10px; display: flex; }
.msg.user { justify-content: flex-end; }
.msg .bubble {
  max-width: 82%; padding: 10px 14px; border-radius: 14px; background: var(--card);
  box-shadow: 0 1px 2px rgba(44, 62, 51, 0.08); white-space: pre-wrap;
}
.msg.user .bubble { background: var(--green); color: #fff; }
.msg.ai .bubble { background: var(--card); }
.conv-item { cursor: pointer; }
.unread-badge {
  display: inline-block; min-width: 18px; height: 18px; line-height: 18px;
  background: var(--danger); color: #fff; border-radius: 9px;
  font-size: 12px; text-align: center; padding: 0 5px; margin-left: 6px;
}
.fact { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.fact p { flex: 1; }
.center-box { max-width: 360px; margin: 12vh auto 0; }
.center-box h1 { text-align: center; color: var(--green); margin-bottom: 16px; }
.error-text { color: var(--danger); font-size: 14px; margin-bottom: 8px; }
.tag { font-size: 12px; color: var(--muted); }
.invite-code {
  font-size: 28px; font-weight: 700; letter-spacing: 4px; text-align: center;
  color: var(--green); background: var(--green-light); border-radius: 10px;
  padding: 12px; margin: 10px 0; user-select: all;
}