.billing-page .account-main { display: grid; gap: 20px; }
.billing-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.billing-heading h1 { margin: 6px 0 10px; font-size: clamp(26px, 4vw, 38px); }
.billing-heading p { margin: 6px 0; }
.billing-eyebrow { font-size: 11px; letter-spacing: .12em; font-weight: 800; color: var(--gold); text-transform: uppercase; }
.billing-test-notice { padding: 14px 18px; border: 1px dashed var(--gold); border-radius: 8px; background: #ece5d3; color: #5b343c; font-size: 13px; }
.billing-page #billing-content { display: grid; gap: 22px; }
.billing-page [hidden], .billing-dialog [hidden], .billing-funding [hidden] { display: none !important; }
.billing-wallet { background: #bcc998; border: 2px solid #8b9674; border-radius: 9px; padding: 20px; box-shadow: inset 2px 3px 8px #34452d26; }
.billing-metrics { display: grid; grid-template-columns: 1.45fr repeat(3, 1fr); gap: 16px; }
.billing-metric { display: flex; flex-direction: column; gap: 9px; min-width: 0; }
.billing-metric span { font-size: 12px; }
.billing-metric strong { font-family: monospace; font-size: 28px; letter-spacing: -.06em; }
.billing-metric:first-child strong { font-size: 46px; line-height: 1; }
.billing-muted { color: var(--muted); font-size: 13px; line-height: 1.6; }
.billing-pricing-note { border-left: 3px solid var(--gold); padding-left: 15px; }
.billing-pricing-note p:first-child { font-weight: 700; font-size: 13px; }
.billing-offers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.billing-offer { display: flex; flex-direction: column; align-items: flex-start; padding: 20px; gap: 4px; border: 1px solid var(--line); border-radius: 10px; background: #e6e9d3; box-shadow: 0 3px 0 #737b6020; }
.billing-offer h3 { font-size: 18px; margin: 10px 0; text-transform: capitalize; }
.billing-offer p { margin: 5px 0; }
.billing-price { font-size: 27px; }
.billing-offer button { margin-top: auto; width: 100%; }
.billing-offer .billing-muted { min-height: 44px; }
.billing-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 16px; }
.billing-plan-change { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-top: 16px; }
.billing-plan-change label { grid-column: 1 / -1; }
.billing-page input, .billing-page select, .billing-page textarea { max-width: 100%; min-width: 0; }
.billing-page textarea { width: 100%; box-sizing: border-box; font: 13px/1.6 monospace; white-space: pre; overflow: auto; color: #24382d; background: #f1f2e4; }
.billing-page label, .billing-page summary { color: #24382d; }
.billing-history-row { padding: 15px 0; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.billing-history-row:last-child { border-bottom: 0; }
.billing-history-row h3 { margin: 2px 0 7px; font-size: 15px; }
.billing-history-row p { font-size: 13px; margin: 8px 0; }
.billing-history-row code { font-size: 11px; color: var(--muted); }
.billing-ledger-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.billing-ledger-grid summary { cursor: pointer; font-weight: 700; min-height: 28px; }
.billing-pagination { display: flex; gap: 12px; align-items: center; justify-content: center; flex-wrap: wrap; font-size: 13px; }
.billing-error { padding: 12px; color: #702335; background: #f2e2df; border: 1px solid #b46c77; border-radius: 7px; overflow-wrap: anywhere; }
.billing-dialog { color: #24382d; background: #e6e9d3; border: 2px solid #899377; border-radius: 15px; padding: 25px; width: min(560px, calc(100vw - 30px)); max-height: calc(100dvh - 30px); overflow: auto; box-sizing: border-box; box-shadow: 0 16px 60px #0005; }
.billing-dialog::backdrop { background: #18261dc2; }
.billing-dialog h2 { font-size: 23px; margin-top: 0; }
.billing-dialog p { line-height: 1.6; overflow-wrap: anywhere; }
.billing-dialog form { display: block; }
.billing-dialog label { display: block; margin-bottom: 8px; font-weight: 700; }
.billing-dialog input, .billing-dialog select { color: #24382d; background: #f1f2e4; border: 1px solid #899377; width: 100%; min-height: 44px; box-sizing: border-box; }
.billing-dialog button { min-height: 44px; white-space: normal; color: white; background: #71233e; border: 1px solid #50192b; }
.billing-dialog .account-secondary { color: #24382d; background: #d6ddbf; border-color: #899377; }
.billing-dialog :focus-visible { outline: 3px solid #38618c; outline-offset: 3px; }
.billing-funding { padding: 15px; border: 1px solid #899377; border-radius: 9px; color: #24382d; background: #dbe2bc; margin: 14px 0; }
.billing-funding h3 { margin: 0 0 8px; font-size: 15px; }
.billing-funding p { font-size: 13px; }
@media (max-width: 680px) {
  .billing-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .billing-metrics { grid-template-columns: 1fr 1fr; gap: 22px; }
  .billing-offers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .billing-offer { padding: 14px; }
  .billing-ledger-grid, .billing-plan-change { grid-template-columns: 1fr; }
  .billing-actions button { flex: 1 1 160px; }
}
@media (max-width: 400px) {
  .billing-offers { grid-template-columns: 1fr; }
  .billing-wallet { padding: 15px; }
  .billing-dialog { padding: 19px; }
  .billing-price { font-size: 24px; }
}

/* Chinese: keep the monospace look for Latin glyphs, but let CJK glyphs come from a sans face rather than the platform serif fallback. */
.billing-metric strong:lang(zh) { font-family: var(--cjk-mono); }
.billing-page textarea:lang(zh) { font-family: var(--cjk-mono); }