.wchat { display: flex; flex-direction: column; gap: 8px }
.wchat-hint { margin: 0; font-size: .85rem; color: #5B6B66 }
.wchat-list { max-height: 320px; min-height: 80px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; padding: 6px; background: #F3F6F5; border-radius: 12px }
.wchat-empty { margin: auto; color: #5B6B66; font-size: .9rem }
.wchat-msg { align-self: flex-start; max-width: 82%; background: #fff; border: 1px solid #DDE5E2; border-radius: 12px; padding: 6px 10px; display: flex; flex-direction: column; gap: 4px }
.wchat-msg.mine { align-self: flex-end; background: #E6F2EE; border-color: #CFE3DC }
.wchat-who { font-size: .72rem; color: #5B6B66; display: flex; gap: 8px; justify-content: space-between }
.wchat-msg img { max-width: 220px; max-height: 260px; border-radius: 8px; display: block }
.wchat-body { white-space: pre-wrap; overflow-wrap: anywhere }
.wchat-form { display: flex; gap: 6px; align-items: center }
.wchat-attach { flex: none; width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid #DDE5E2; border-radius: 10px; cursor: pointer; font-size: 1.2rem; background: #fff }
.wchat-text { flex: 1; min-width: 0; border: 1px solid #DDE5E2; border-radius: 10px; padding: 10px; font: inherit }
.wchat-send { flex: none; border: 0; border-radius: 10px; padding: 10px 14px; background: #0B5D4B; color: #fff; font: inherit; font-weight: 600; cursor: pointer }
.wchat-err { margin: 0; font-size: .85rem; color: #C2362B }

/* Pay box: QR + exact amount */
.paybox { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center }
.paybox img { width: 220px; max-width: 100%; aspect-ratio: 1; object-fit: contain; background: #fff; border: 1px solid #DDE5E2; border-radius: 12px; padding: 8px }
.paybox .amount { font-family: "Readex Pro", sans-serif; font-size: 1.8rem; color: #0B5D4B; font-variant-numeric: tabular-nums }
.paybox .acc { font-weight: 600 }