/* ============================================================
   codex-subscription.css — 套餐与用量 / 升级套餐
   对标：Codex 26.1007.2314
     · Settings → Usage & billing（limit meter d1i + settings-row）
     · pricing-page（planName 18/600 · price 28/medium · cadence toggle）
   命名：.cdx-sub-*；字号照抄 Codex electron 真值（24/18/16/14/13/11）
   ============================================================ */

:root{
  --sub-content-max: var(--page-wide-max);
  --sub-content-pad: var(--page-directory-pad);
  --sub-btn-h: 32px;
  --sub-ghost-hover: rgba(0, 0, 0, .05);
  --sub-ghost-hover-50: rgba(0, 0, 0, .025);
  --sub-border-subtle: color-mix(in oklab, var(--color-foreground) 5%, transparent);
  --sub-border-light: color-mix(in oklab, var(--color-foreground) 8%, transparent);
  --sub-border-strong: color-mix(in oklab, var(--color-foreground) 12%, transparent);
  --sub-text-secondary: color-mix(in oklab, var(--color-foreground) 65%, transparent);
  --sub-text-tertiary: color-mix(in oklab, var(--color-foreground) 50%, transparent);
  --sub-surface-elevated: color-mix(in oklab, var(--color-foreground) 2%, transparent);
  --sub-meter-track: color-mix(in oklab, var(--color-foreground) 10%, transparent);
}
.dark, .theme-zai-dark{
  --sub-ghost-hover: rgba(255, 255, 255, .1);
  --sub-ghost-hover-50: rgba(255, 255, 255, .05);
}

/* ---------- 页面壳（同资料库 / 管理：整页 panel 卡） ---------- */
.cdx-sub-root{
  position:relative;height:100%;min-height:0;
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--color-background);color:var(--color-foreground);
}

.cdx-sub-sticky{
  position:sticky;top:0;z-index:20;flex-shrink:0;
  background:var(--color-panel);
  border-bottom:1px solid transparent;
  transition:border-color .15s ease;
}
.cdx-sub-sticky.is-stuck{border-bottom-color:var(--sub-border-subtle)}

.cdx-sub-head{width:100%;max-width:var(--sub-content-max);margin:0 auto;padding:var(--sp-5) var(--sub-content-pad) var(--sp-2)}
.cdx-sub-head-inner{
  display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  max-width:var(--sub-content-max);margin:0 auto;
}
.cdx-sub-titleblock{display:flex;flex-direction:column;gap:2px;min-width:0}
.cdx-sub-h1{
  margin:0;display:flex;align-items:center;min-height:36px;
  font-size:var(--text-ui-2xl);font-weight:600;line-height:1.4;
  letter-spacing:0;color:var(--color-foreground);
}
.cdx-sub-sub{
  margin:0;max-width:52ch;
  font-size:var(--sub-fs-base);line-height:24px;
  color:var(--sub-text-secondary);
}
.cdx-sub-toolbar{display:flex;align-items:center;gap:var(--sp-3);flex-shrink:0;padding-top:0}
.cdx-sub-toolbar .cdx-sub-btn{height:36px;padding-inline:16px;font-size:var(--text-ui-base)}

/* underline tabs */
.cdx-sub-utabs{
  display:flex;align-items:center;gap:24px;
  max-width:var(--sub-content-max);margin:12px auto 0;
  padding:0 var(--sub-content-pad);
  border-bottom:1px solid var(--sub-border-light);
}
.cdx-sub-utab{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  padding:6px 2px 10px;border:0;background:transparent;
  color:var(--sub-text-secondary);font-size:var(--sub-fs-base);font-weight:500;
  line-height:20px;cursor:pointer;transition:color .12s ease;
}
.cdx-sub-utab:hover{color:var(--color-foreground)}
.cdx-sub-utab.is-active{color:var(--color-foreground)}
.cdx-sub-utab.is-active::after{
  content:'';position:absolute;inset-inline:0;bottom:-1px;height:2px;
  background:var(--color-foreground);border-radius:1px;
}
.cdx-sub-utab-ico{display:inline-flex;line-height:0;color:inherit;opacity:.85}

.cdx-sub-scroll{position:relative;flex:1;min-height:0;overflow-y:auto;overflow-x:hidden}
.cdx-sub-page{
  width:100%;max-width:var(--sub-content-max);
  margin:0 auto;padding:20px var(--sub-content-pad) 48px;
  container-type:inline-size;
}

/* ---------- 按钮 ---------- */
.cdx-sub-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:var(--sub-btn-h);padding:0 14px;border:1px solid transparent;
  border-radius:var(--radius-full);
  font-size:var(--sub-fs-sm);font-weight:500;line-height:1;cursor:pointer;
  transition:background .12s ease,color .12s ease,opacity .12s ease,border-color .12s ease;
  white-space:nowrap;
}
.cdx-sub-btn--primary{
  background:var(--color-foreground);color:var(--color-foreground-inverse);
}
.cdx-sub-btn--primary:hover{opacity:.88}
.cdx-sub-btn--secondary{
  background:transparent;color:var(--color-foreground);
  border-color:var(--sub-border-strong);
}
.cdx-sub-btn--secondary:hover{background:var(--sub-ghost-hover)}
.cdx-sub-btn--ghost{
  background:transparent;color:var(--sub-text-secondary);
  border-radius:var(--radius-lg);
}
.cdx-sub-btn--ghost:hover{background:var(--sub-ghost-hover);color:var(--color-foreground)}
.cdx-sub-btn:disabled,
.cdx-sub-btn[disabled]{
  opacity:.55;cursor:default;pointer-events:none;
}
.cdx-sub-btn svg{flex-shrink:0}

/* ---------- Section ---------- */
.cdx-sub-sec{margin-bottom:28px}
.cdx-sub-sec-h{
  display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  margin-bottom:12px;
}
.cdx-sub-sec-title{
  margin:0;font-size:var(--sub-fs-lg);font-weight:500;line-height:24px;
  color:var(--color-foreground);
}
.cdx-sub-sec-desc{
  margin:2px 0 0;font-size:var(--sub-fs-sm);line-height:20px;
  color:var(--sub-text-tertiary);max-width:56ch;
}

/* ---------- Settings rows（套餐摘要） ---------- */
.cdx-sub-rows{
  border:1px solid var(--sub-border-light);
  border-radius:var(--radius-xl);
  overflow:hidden;background:var(--color-card);
}
.cdx-sub-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:52px;padding:12px 16px;
  border-bottom:1px solid var(--sub-border-subtle);
}
.cdx-sub-row:last-child{border-bottom:0}
.cdx-sub-row-main{min-width:0;display:flex;flex-direction:column;gap:2px}
.cdx-sub-row-label{
  font-size:var(--sub-fs-base);font-weight:500;line-height:20px;
  color:var(--color-foreground);
}
.cdx-sub-row-desc{
  font-size:var(--sub-fs-sm);line-height:18px;color:var(--sub-text-tertiary);
}
.cdx-sub-row-value{
  font-size:var(--sub-fs-base);font-weight:500;line-height:20px;
  color:var(--color-foreground);font-variant-numeric:tabular-nums;
  text-align:end;white-space:nowrap;
}
.cdx-sub-badge{
  display:inline-flex;align-items:center;height:20px;padding:0 8px;
  border-radius:var(--radius-full);
  background:var(--sub-surface-elevated);
  border:1px solid var(--sub-border-light);
  font-size:var(--sub-fs-xs);font-weight:500;color:var(--sub-text-secondary);
}

/* ---------- Limit meters（对标 Codex d1i progress） ---------- */
.cdx-sub-meters{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
}
@container (max-width:720px){
  .cdx-sub-meters{grid-template-columns:1fr}
}
.cdx-sub-meter{
  display:flex;flex-direction:column;gap:10px;
  padding:16px;border-radius:var(--radius-xl);
  background:var(--sub-surface-elevated);
  border:1px solid var(--sub-border-subtle);
}
.cdx-sub-meter-top{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
}
.cdx-sub-meter-name{
  font-size:var(--sub-fs-base);font-weight:500;line-height:20px;
  color:var(--color-foreground);
}
.cdx-sub-meter-pct{
  font-size:var(--sub-fs-sm);font-weight:500;line-height:18px;
  color:var(--sub-text-secondary);font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.cdx-sub-meter-bar{
  position:relative;height:8px;border-radius:999px;overflow:hidden;
  background:var(--sub-meter-track);
}
.cdx-sub-meter-fill{
  position:absolute;inset:0;border-radius:999px;
  background:var(--color-foreground);
  transform-origin:left center;
  will-change:clip-path;
}
.cdx-sub-meter-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:var(--sub-fs-xs);line-height:16px;color:var(--sub-text-tertiary);
  font-variant-numeric:tabular-nums;
}
.cdx-sub-meter-foot b{
  font-weight:500;color:var(--sub-text-secondary);
}
.cdx-sub-meter-hint{color:var(--color-success);font-weight:500}

/* ---------- 加油包（Credits packs） ---------- */
.cdx-sub-packs{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px;
}
@container (max-width:720px){
  .cdx-sub-packs{grid-template-columns:1fr}
}
.cdx-sub-pack{
  display:flex;flex-direction:column;gap:6px;
  padding:14px 16px;border-radius:var(--radius-xl);
  border:1px solid var(--sub-border-light);
  background:var(--color-card);
  transition:background .12s ease,border-color .12s ease;
}
.cdx-sub-pack:hover{
  background:var(--sub-ghost-hover-50);
  border-color:var(--sub-border-strong);
}
.cdx-sub-pack-top{
  display:flex;align-items:flex-start;justify-content:space-between;gap:10px;
}
.cdx-sub-pack-name{
  font-size:var(--sub-fs-base);font-weight:500;line-height:20px;
  color:var(--color-foreground);
}
.cdx-sub-pack-credits{
  font-size:var(--sub-fs-sm);font-weight:500;line-height:18px;
  color:var(--color-foreground);font-variant-numeric:tabular-nums;
}
.cdx-sub-pack-desc{
  font-size:var(--sub-fs-sm);line-height:18px;color:var(--sub-text-tertiary);
}
.cdx-sub-pack-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:4px;
}
.cdx-sub-pack-price{
  font-size:var(--sub-fs-lg);font-weight:600;line-height:24px;
  letter-spacing:-.02em;color:var(--color-foreground);
  font-variant-numeric:tabular-nums;
}

/* ---------- 用量明细表 ---------- */
.cdx-sub-table-wrap{
  border:1px solid var(--sub-border-light);
  border-radius:var(--radius-xl);overflow:hidden;
  background:var(--color-card);
}
.cdx-sub-table{
  width:100%;border-collapse:collapse;
  font-size:var(--sub-fs-base);line-height:20px;
}
.cdx-sub-table th{
  text-align:left;padding:10px 14px;
  font-size:var(--sub-fs-xs);font-weight:500;line-height:16px;
  color:var(--sub-text-tertiary);
  border-bottom:1px solid var(--sub-border-subtle);
  background:transparent;
}
.cdx-sub-table td{
  padding:10px 14px;border-bottom:1px solid var(--sub-border-subtle);
  color:var(--color-foreground);vertical-align:middle;
}
.cdx-sub-table tr:last-child td{border-bottom:0}
.cdx-sub-table tr:hover td{background:var(--sub-ghost-hover)}
.cdx-sub-table .muted{color:var(--sub-text-secondary)}
.cdx-sub-table .num{
  font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap;
}

/* ---------- 升级套餐 / Pricing ---------- */
.cdx-sub-plans-lead{
  text-align:center;margin:4px auto 20px;max-width:42rem;
  font-size:var(--sub-fs-sm);line-height:22px;color:var(--sub-text-secondary);
}
.cdx-sub-cadence{
  display:flex;justify-content:center;margin-bottom:24px;
}
.cdx-sub-seg{
  display:inline-flex;align-items:center;gap:0;
  height:36px;padding:3px;border-radius:999px;
  background:var(--sub-surface-elevated);
  border:1px solid var(--sub-border-subtle);
}
.cdx-sub-seg-btn{
  height:30px;padding:0 14px;border:0;border-radius:999px;
  background:transparent;cursor:pointer;
  font-size:var(--sub-fs-sm);font-weight:500;line-height:1;
  color:var(--sub-text-secondary);
  transition:background .12s ease,color .12s ease;
}
.cdx-sub-seg-btn:hover{color:var(--color-foreground)}
.cdx-sub-seg-btn.is-active{
  background:var(--color-background);
  color:var(--color-foreground);
  box-shadow:0 0 0 1px var(--sub-border-subtle);
}

.cdx-sub-price-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;align-items:stretch;
}
@container (max-width:820px){
  .cdx-sub-price-grid{grid-template-columns:1fr}
}

/* pricing-page column */
.cdx-sub-price-card{
  position:relative;display:flex;flex-direction:column;
  padding:20px 18px 18px;
  border-radius:var(--radius-2xl);
  border:1px solid var(--sub-border-light);
  background:var(--color-card);
  min-height:100%;
}
.cdx-sub-price-card.is-current{
  border-color:color-mix(in oklab, var(--color-foreground) 28%, transparent);
  box-shadow:0 0 0 1px color-mix(in oklab, var(--color-foreground) 8%, transparent);
}
.cdx-sub-price-name-row{
  display:flex;align-items:center;gap:8px;min-height:32px;
}
.cdx-sub-price-name{
  font-size:var(--sub-fs-plan);font-weight:600;line-height:32px;
  letter-spacing:-.18px;color:var(--color-foreground);
}
.cdx-sub-price-amount{
  min-height:34px;margin-top:4px;
  font-size:var(--sub-fs-price);font-weight:500;line-height:34px;
  letter-spacing:-1px;color:var(--color-foreground);
  font-variant-numeric:tabular-nums;
}
.cdx-sub-price-amount span{
  font-size:var(--sub-fs-sm);font-weight:500;letter-spacing:0;
  color:var(--sub-text-secondary);margin-left:4px;
}
.cdx-sub-price-note{
  margin-top:2px;font-size:var(--sub-fs-xs);line-height:16px;
  color:var(--sub-text-tertiary);
}
.cdx-sub-price-desc{
  margin-top:8px;min-height:42px;
  font-size:var(--sub-fs-base);font-weight:400;line-height:21px;
  color:var(--sub-text-secondary);
}
.cdx-sub-price-list{
  list-style:none;margin:16px 0 0;padding:0;
  display:flex;flex-direction:column;gap:8px;flex:1;
}
.cdx-sub-price-list li{
  display:flex;align-items:flex-start;gap:8px;
  font-size:var(--sub-fs-sm);line-height:20px;
  color:var(--sub-text-secondary);
}
.cdx-sub-price-list li .cdx-sub-check{
  flex-shrink:0;width:16px;height:16px;margin-top:2px;
  color:var(--color-foreground);opacity:.72;display:inline-flex;
}
.cdx-sub-price-list li.is-muted{color:var(--sub-text-tertiary)}
.cdx-sub-price-cta{margin-top:18px}
.cdx-sub-price-cta .cdx-sub-btn{width:100%;height:36px;border-radius:999px}

@media (prefers-reduced-motion: reduce){
  .cdx-sub-meter-fill,
  .cdx-sub-btn,
  .cdx-sub-utab,
  .cdx-sub-pack{transition:none}
}

/* Full-screen upgrade surface — user screenshot references 2 / 3. */
.main-col .cdx-sub-root.cdx-sub-upgrade{position:fixed;inset:0;z-index:80;border:0;border-radius:0;background:color-mix(in srgb,var(--color-background-win-alt) 60%,var(--color-background));container-type:inline-size}
.cdx-sub-upgrade-scroll{height:100%;overflow:auto;padding:64px 32px 48px}
.cdx-sub-close{position:absolute;right:24px;top:20px;z-index:1;display:grid;place-items:center;width:36px;height:36px;border:0;border-radius:999px;background:transparent;color:var(--color-muted-foreground);cursor:pointer}
.cdx-sub-close:hover{background:var(--sub-surface-elevated);color:var(--color-foreground)}
.cdx-sub-upgrade-head{text-align:center;margin-bottom:28px}
.cdx-sub-upgrade-head h1{font-size:var(--text-display);font-weight:650;letter-spacing:-1px;margin:0;line-height:1.3}
.cdx-sub-upgrade-head p{font-size:var(--text-ui-base);color:var(--sub-text-secondary);margin:12px 0 0}
.cdx-sub-upgrade #subBody{max-width:1440px;margin:auto}
.cdx-sub-upgrade .cdx-sub-cadence{margin-bottom:48px}
.cdx-sub-upgrade .cdx-sub-seg{height:44px;padding:4px;border:0;background:color-mix(in srgb,var(--color-foreground) 10%,var(--color-background))}
.cdx-sub-upgrade .cdx-sub-seg-btn{height:36px;min-width:120px;font-size:var(--text-ui-base)}
.cdx-sub-saving{color:var(--color-icon-blue);margin-left:6px}
.cdx-sub-upgrade .cdx-sub-price-grid{gap:20px;grid-template-columns:repeat(4,minmax(0,1fr))}
@media(min-width:821px) and (max-width:1200px){.cdx-sub-upgrade .cdx-sub-price-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.cdx-sub-upgrade .cdx-sub-price-card{padding:24px;border-radius:24px;min-height:550px}
.cdx-sub-upgrade .cdx-sub-price-name-row{justify-content:space-between}
.cdx-sub-upgrade .cdx-sub-price-name{font-size:var(--text-ui-xl)}
.cdx-sub-price-heading{font-size:var(--text-display-sm);font-weight:500;letter-spacing:-.5px;margin:24px 0 0;line-height:1.35}
.cdx-sub-upgrade .cdx-sub-price-desc{font-size:var(--text-ui-base);line-height:1.65;min-height:48px;margin:12px 0 0}
.cdx-sub-upgrade .cdx-sub-price-amount{font-size:calc(var(--text-display) * 1.5);line-height:1.2;margin-top:28px;min-height:51px;letter-spacing:-1.5px}
.cdx-sub-price-amount small{font-size:var(--text-ui-lg);vertical-align:baseline;margin-right:5px;letter-spacing:0}
.cdx-sub-upgrade .cdx-sub-price-amount span{font-size:var(--text-ui-base)}
.cdx-sub-upgrade .cdx-sub-price-note{font-size:var(--text-ui-sm);min-height:20px;margin-top:6px}
.cdx-sub-upgrade .cdx-sub-price-cta{margin-top:24px}
.cdx-sub-upgrade .cdx-sub-price-cta button{height:44px;font-size:var(--text-ui-base);font-weight:600}
.cdx-sub-upgrade .cdx-sub-price-cta button:disabled{background:transparent;color:var(--sub-text-tertiary);border:1px solid var(--sub-border-light);opacity:1;cursor:default}
.cdx-sub-upgrade .cdx-sub-price-list{gap:16px;margin-top:28px}
.cdx-sub-upgrade .cdx-sub-price-list li{font-size:var(--text-ui-base);line-height:22px;color:var(--color-foreground);gap:12px}
.cdx-sub-upgrade .cdx-sub-price-list li.is-muted{color:var(--sub-text-tertiary)}
.cdx-sub-upgrade .cdx-sub-check{width:18px;height:18px;opacity:1}
.cdx-sub-upgrade .is-featured{border-color:color-mix(in srgb,var(--color-icon-blue) 50%,var(--sub-border-light));background:linear-gradient(var(--color-card),color-mix(in srgb,var(--color-icon-blue) 6%,var(--color-card)))}
.cdx-sub-upgrade .is-featured .cdx-sub-check{color:var(--color-icon-blue)}
.cdx-sub-upgrade .is-featured button:not(:disabled){background:var(--color-foreground);color:var(--color-background)}
.cdx-sub-upgrade button:focus-visible{outline:2px solid var(--color-ring,var(--color-icon-blue));outline-offset:3px}
@media(max-width:820px){.cdx-sub-upgrade-scroll{padding:64px 20px 32px}.cdx-sub-upgrade .cdx-sub-price-grid{grid-template-columns:1fr;max-width:480px;margin:auto}.cdx-sub-upgrade .cdx-sub-price-card{min-height:auto;padding:24px}.cdx-sub-upgrade .cdx-sub-cadence{margin-bottom:32px}}


/* Free has no outline, including when it is the current plan. */
.cdx-sub-upgrade .cdx-sub-price-card:first-child{border-color:transparent;box-shadow:none}

/* FAQ — centered heading, ruled disclosure rows, no extra card surface. */
.cdx-sub-faq{margin:80px auto 16px;max-width:960px}
.cdx-sub-faq h2{text-align:center;font-size:var(--text-display);font-weight:600;line-height:1.3;margin:0 0 40px}
.cdx-sub-faq-item{border-bottom:1px solid var(--sub-border-strong)}
.cdx-sub-faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 0;cursor:pointer;list-style:none;font-size:var(--text-ui-lg);font-weight:500;line-height:1.6}
.cdx-sub-faq-item summary::-webkit-details-marker{display:none}
.cdx-sub-faq-item summary>span:first-child{flex:1}
.cdx-sub-faq-plus,.cdx-sub-faq-minus{flex:none;display:inline-flex}
.cdx-sub-faq-minus{display:none}
.cdx-sub-faq-item[open] .cdx-sub-faq-plus{display:none}
.cdx-sub-faq-item[open] .cdx-sub-faq-minus{display:inline-flex}
.cdx-sub-faq-item p{margin:0;padding:8px 40px 28px 0;font-size:var(--text-ui-base);color:var(--sub-text-secondary);line-height:1.85}
.cdx-sub-faq-item summary:hover{color:var(--color-foreground);font-weight:600}
.cdx-sub-faq-item summary:focus-visible{outline:2px solid var(--color-icon-blue);outline-offset:4px;border-radius:var(--radius-sm)}
@media(max-width:820px){.cdx-sub-faq{margin-top:48px}.cdx-sub-faq h2{margin-bottom:24px}.cdx-sub-faq-item summary{padding:20px 0}.cdx-sub-faq-item p{padding-right:0}}

/* Pricing scroll uses the full viewport width without a native scrollbar gutter. */
.cdx-sub-upgrade-scroll{scrollbar-width:none;scrollbar-gutter:auto}
.cdx-sub-upgrade-scroll::-webkit-scrollbar{display:none;width:0;height:0}

.cdx-sub-plan-value{display:flex;flex-direction:column;align-items:flex-end;gap:4px}
.cdx-sub-plan-value .cdx-sub-badge{margin-left:8px}

.cdx-sub-plan-upgrade{flex-shrink:0;height:36px;padding-inline:16px;font-size:var(--text-ui-base)}
@media(max-width:480px){.cdx-sub-row:has(.cdx-sub-plan-upgrade){flex-wrap:wrap}}

/* Current plan and balances share one card; meters stack vertically. */
.cdx-sub-plan-card .cdx-sub-row{border-bottom:1px solid var(--sub-border-subtle)}
.cdx-sub-plan-card .cdx-sub-meters{display:flex;flex-direction:column;gap:24px;padding:20px 16px}
.cdx-sub-plan-card .cdx-sub-meter{border:0;border-radius:0;background:transparent;padding:0}

.cdx-sub-meter-top{flex-wrap:wrap;gap:8px 16px}
.cdx-sub-meter-pct{margin-left:auto}
@media(max-width:480px){.cdx-sub-meter-pct{width:100%;margin-left:0;text-align:left}}