/* HZ 兑换 · HZAPI 家族前台样式（VI v4）
   紫 #5B3EFF 主色/动作 · 墨 #13141A 文字/深色面 · 纸 #F6F5F0 底色
   青柠 #D4FF3F 连接点/完成（小面积） · 青 #63D8EF 处理中/提示（小面积） */
:root {
  --hz-violet: #5B3EFF;
  --hz-violet-600: #4A2EF0;
  --hz-violet-700: #3418C8;
  --hz-violet-050: #EEEBFF;
  --hz-violet-100: #DED8FF;
  --hz-ink: #13141A;
  --hz-ink-2: #2A2B33;
  --hz-paper: #F6F5F0;
  --hz-paper-2: #EDEBE3;
  --hz-white: #FFFFFF;
  --hz-lime: #D4FF3F;
  --hz-lime-ink: #3E4A00;
  --hz-cyan: #63D8EF;
  --hz-cyan-050: #E3F8FC;
  --hz-cyan-ink: #0B6578;
  --hz-muted: #61626B;
  --hz-faint: #9A9BA3;
  --hz-line: rgba(19, 20, 26, .09);
  --hz-line-2: rgba(19, 20, 26, .16);
  --hz-ok: #13834D;
  --hz-ok-050: #E7F6EE;
  --hz-warn: #9A5B00;
  --hz-warn-050: #FFF4DE;
  --hz-err: #C42B40;
  --hz-err-050: #FDEEF0;
  --r-xl: 28px;
  --r-lg: 20px;
  --r-md: 14px;
  --r-sm: 10px;
  --shadow: 0 1px 0 rgba(19, 20, 26, .04), 0 24px 48px -32px rgba(19, 20, 26, .28);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, sans-serif;
  --display: "SF Pro Display", -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --hz-accent: var(--hz-violet);
  --hz-soft: var(--hz-paper);
  --ink: var(--hz-ink);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }
body {
  margin: 0; background: var(--hz-paper); color: var(--hz-ink);
  font: 15px/1.65 var(--font); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
img, svg { display: block; }
::selection { background: var(--hz-violet); color: #fff; }
:focus-visible { outline: 2px solid var(--hz-violet); outline-offset: 2px; }

.wrap { width: min(1200px, 100% - 48px); margin: 0 auto; }

/* ---------- brand lockup: HZ mark + name + lime cursor block ---------- */
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 900; letter-spacing: -.03em; font-size: 20px; line-height: 1; }
.brand img { width: 46px; height: 29px; }
.brand > span[data-site-name]::after { content: ""; display: inline-block; width: .5em; height: .2em; margin-left: .12em; background: var(--hz-lime); vertical-align: baseline; box-shadow: 0 0 0 1px rgba(19, 20, 26, .08) inset; }
.brand small { font-family: var(--font); font-weight: 600; font-size: 13px; color: var(--hz-ink-2); letter-spacing: 0; padding: 4px 9px; margin-left: 4px; border-radius: 7px; background: var(--hz-violet-050); color: var(--hz-violet-600); }

/* ---------- header ---------- */
.site-head { position: sticky; top: 0; z-index: 30; background: rgba(255, 255, 255, .88); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid var(--hz-line); }
.site-head .wrap { display: flex; align-items: center; height: 72px; gap: 44px; }
.nav { display: flex; gap: 34px; font-size: 15px; color: var(--hz-ink-2); font-weight: 500; }
.nav a { position: relative; padding: 24px 0; }
.nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 14px; height: 3px; border-radius: 2px; background: var(--hz-violet); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.nav a:hover { color: var(--hz-ink); }
.nav a:hover::after, .nav a.on::after { transform: scaleX(1); }
.nav a.on { color: var(--hz-ink); font-weight: 700; }
.head-cta { margin-left: auto; }
.site-head .head-cta { background: var(--hz-ink); color: #fff; border-color: var(--hz-ink); height: 42px; }
.site-head .head-cta:hover { background: var(--hz-violet); border-color: var(--hz-violet); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 22px; border-radius: var(--r-md); border: 1px solid transparent; cursor: pointer; font-weight: 700; font-size: 15px; transition: background .2s, border-color .2s, transform .2s var(--ease), box-shadow .2s, color .2s; white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--hz-violet); color: #fff; box-shadow: 0 10px 24px -14px rgba(91, 62, 255, .9); }
.btn-primary:hover { background: var(--hz-violet-600); box-shadow: 0 14px 30px -14px rgba(91, 62, 255, .95); }
.btn-dark { background: var(--hz-ink); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-ghost { background: #fff; border-color: var(--hz-line-2); color: var(--hz-ink); }
.btn-ghost:hover { border-color: var(--hz-ink); }
.btn-block { width: 100%; height: 56px; font-size: 16px; border-radius: 16px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; box-shadow: none; }
.btn .arrow { transition: transform .3s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }
.spin { width: 16px; height: 16px; border-radius: 50%; border: 2px solid rgba(255, 255, 255, .35); border-top-color: #fff; animation: spin .8s linear infinite; }
.btn-ghost .spin { border-color: rgba(19, 20, 26, .2); border-top-color: var(--hz-ink); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- typography ---------- */
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: .3em; text-transform: uppercase; color: var(--hz-ink-2); font-weight: 600; display: inline-flex; align-items: center; gap: 10px; }
.eyebrow::before { content: ""; width: 9px; height: 9px; background: var(--hz-lime); box-shadow: 0 0 0 1px rgba(19, 20, 26, .25) inset; }
.eyebrow.dark { color: rgba(255, 255, 255, .7); }
.eyebrow.dark::before { box-shadow: none; }
.display { font-family: var(--display); font-size: clamp(40px, 5.6vw, 76px); line-height: 1.04; font-weight: 900; letter-spacing: -.04em; margin: 22px 0 22px; }
.display em { font-style: normal; color: var(--hz-violet); }
.lead { font-size: 17px; color: var(--hz-muted); max-width: 30em; margin: 0; }
.h2 { font-family: var(--display); font-size: clamp(30px, 3.6vw, 48px); line-height: 1.12; font-weight: 900; letter-spacing: -.035em; margin: 16px 0 0; }
code { font-family: var(--mono); font-size: .92em; background: var(--hz-paper); border-radius: 6px; padding: 1px 6px; }

/* ---------- panel (white card with VI corner bracket) ---------- */
.panel { background: var(--hz-white); border: 1px solid var(--hz-line); border-radius: var(--r-lg); padding: 36px; box-shadow: var(--shadow); position: relative; }
.panel::before { content: ""; position: absolute; top: -1px; right: 28px; width: 92px; height: 26px; border-top: 4px solid var(--hz-lime); border-right: 4px solid var(--hz-lime); border-top-right-radius: 10px; pointer-events: none; }
.panel-tag { display: none; }
.panel h2 { margin: 6px 0 6px; font-size: 26px; font-weight: 900; letter-spacing: -.025em; }
.panel .sub { margin: 0 0 24px; color: var(--hz-muted); font-size: 14px; }
.panel-foot { margin-top: 24px; padding-top: 20px; border-top: 1px dashed var(--hz-line-2); font-size: 13px; color: var(--hz-muted); }

/* ---------- form ---------- */
.field { margin-bottom: 20px; }
.field label { display: flex; justify-content: space-between; font-size: 14px; font-weight: 700; margin-bottom: 8px; }
.field label span { font-weight: 400; color: var(--hz-faint); font-size: 13px; }
.input { width: 100%; min-width: 0; height: 56px; border-radius: var(--r-md); border: 1.5px solid var(--hz-line-2); background: #FCFCFA; padding: 0 16px; font-size: 15px; transition: border-color .2s, box-shadow .2s, background .2s; outline: none; }
textarea.input { height: 104px; padding: 14px 16px; resize: vertical; line-height: 1.55; }
#accountSession { font-family: var(--mono); font-size: 13px; height: 132px; }
.input:hover { border-color: rgba(19, 20, 26, .32); }
.input:focus { border-color: var(--hz-violet); background: #fff; box-shadow: 0 0 0 4px rgba(91, 62, 255, .14); }
.input.code { font-family: var(--mono); letter-spacing: .08em; text-transform: uppercase; font-size: 16px; }
.input.invalid { border-color: var(--hz-err); box-shadow: 0 0 0 4px rgba(196, 43, 64, .1); }
.hint { font-size: 12.5px; color: var(--hz-faint); margin-top: 8px; line-height: 1.6; }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; color: var(--hz-ink-2); margin: 8px 0 22px; padding: 14px 16px; border-radius: var(--r-md); background: var(--hz-paper); cursor: pointer; transition: background .2s, box-shadow .2s; }
.check:hover { background: var(--hz-paper-2); }
.check:has(input:checked) { background: var(--hz-violet-050); box-shadow: 0 0 0 1.5px var(--hz-violet-100) inset; }
.check input { width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--hz-violet); flex: none; }
.msg { display: none; margin: 0 0 16px; padding: 12px 14px; border-radius: var(--r-sm); font-size: 14px; line-height: 1.55; }
.msg.show { display: block; }
.msg.err { background: var(--hz-err-050); color: var(--hz-err); box-shadow: 0 0 0 1px rgba(196, 43, 64, .14) inset; }
.msg.ok { background: var(--hz-ok-050); color: var(--hz-ok); }
.msg.info { background: var(--hz-cyan-050); color: var(--hz-cyan-ink); }
.msg a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }

.link-row { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-radius: var(--r-md); border: 1px solid var(--hz-line); margin-top: 16px; transition: border-color .2s, background .2s; }
.link-row:hover { border-color: var(--hz-ink); background: #FCFCFA; }
.link-row b { font-size: 14px; display: block; }
.link-row span { font-size: 12px; color: var(--hz-muted); }

/* ---------- faq ---------- */
.faq { padding: 120px 0; }
.faq .wrap { display: grid; grid-template-columns: .8fr 1.2fr; gap: 72px; }
.faq details { background: #fff; border: 1px solid var(--hz-line); border-radius: var(--r-md); padding: 20px 24px; margin-bottom: 10px; transition: border-color .2s, box-shadow .2s; }
.faq details[open] { border-color: var(--hz-violet-100); box-shadow: 0 0 0 3px var(--hz-violet-050); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; font-weight: 700; font-size: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: none; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; background: var(--hz-paper); font-weight: 500; font-size: 18px; transition: transform .3s var(--ease), background .2s, color .2s; }
.faq details[open] summary::after { transform: rotate(45deg); background: var(--hz-violet); color: #fff; }
.faq details p { color: var(--hz-muted); margin: 12px 0 0; max-width: 46em; }

/* ---------- footer: ONE FAMILY ---------- */
.site-foot { background: #fff; border-top: 1px solid var(--hz-line); padding: 44px 0 40px; font-size: 13px; color: var(--hz-muted); }
.site-foot .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-foot .brand { font-size: 17px; color: var(--hz-ink); }
.site-foot .brand img { width: 36px; height: 23px; }
.site-foot nav { display: flex; gap: 24px; font-weight: 500; }
.site-foot nav a:hover { color: var(--hz-violet); }
.foot-code { font-family: var(--mono); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--hz-faint); }
.foot-family { display: flex; gap: 18px; align-items: center; font-family: var(--display); font-weight: 900; letter-spacing: -.02em; color: var(--hz-ink); font-size: 14px; }
.foot-family span::after { content: ""; display: inline-block; width: .55em; height: .2em; margin-left: .1em; background: var(--hz-lime); }
.foot-family span.agent::after { background: var(--hz-cyan); }
.foot-palette { display: flex; gap: 4px; }
.foot-palette i { width: 22px; height: 8px; border-radius: 2px; }

/* ---------- notice ---------- */
.notice { background: var(--hz-ink); color: rgba(255, 255, 255, .9); font-size: 13px; text-align: center; padding: 10px 24px; }
.notice::before { content: ""; display: inline-block; width: 7px; height: 7px; background: var(--hz-lime); margin-right: 10px; vertical-align: middle; }

/* ---------- flow pages ---------- */
.page { padding: 56px 0 112px; min-height: calc(100vh - 72px - 120px); }
.page-head { max-width: 760px; margin: 0 auto 40px; text-align: center; }
.page-head .display { font-size: clamp(34px, 4.4vw, 52px); margin: 18px 0 12px; }
.page-head .lead { margin: 0 auto; }
.flow { max-width: 760px; margin: 0 auto; }
.stepper { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 24px; }
.stepper div { position: relative; padding: 12px 14px; border-radius: var(--r-sm); background: #fff; border: 1px solid var(--hz-line); font-size: 14px; color: var(--hz-faint); font-weight: 600; }
.stepper div i { font-style: normal; font-family: var(--mono); font-size: 12px; margin-right: 8px; }
.stepper .done { color: var(--hz-ink); border-color: var(--hz-line-2); }
.stepper .done i { color: var(--hz-ok); }
.stepper .on { background: var(--hz-violet); border-color: var(--hz-violet); color: #fff; }
.stepper .on::after { content: ""; position: absolute; right: 10px; top: 10px; width: 8px; height: 8px; background: var(--hz-lime); }
.stepper .on i { color: rgba(255, 255, 255, .75); }

.product { display: flex; align-items: center; gap: 20px; padding: 20px 22px; border-radius: var(--r-md); background: var(--hz-ink); color: #fff; margin-bottom: 28px; position: relative; overflow: hidden; }
.product > div { min-width: 0; overflow-wrap: anywhere; }
.plan-chip { font-family: var(--mono); font-size: 12px; letter-spacing: .14em; padding: 6px 10px; border-radius: 6px; background: var(--hz-violet); }
.product b { display: block; font-size: 17px; }
.product span { font-size: 13px; color: rgba(255, 255, 255, .6); }
.product .meta { margin-left: auto; text-align: right; font-family: var(--mono); font-size: 12px; color: rgba(255, 255, 255, .6); }
.grid-2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 18px; }

.success { text-align: center; padding: 8px 0 4px; }
.success .tick { width: 64px; height: 64px; border-radius: 18px; background: var(--hz-violet); display: grid; place-items: center; margin: 0 auto 20px; position: relative; }
.success .tick::after { content: ""; position: absolute; right: -5px; bottom: -5px; width: 16px; height: 16px; background: var(--hz-lime); border: 3px solid #fff; }
.success h2 { font-size: 32px; font-weight: 900; letter-spacing: -.035em; margin: 10px 0 6px; }
.success .sub { max-width: 32em; margin-left: auto; margin-right: auto; }
.order-no { display: inline-flex; align-items: center; gap: 14px; margin: 14px 0 6px; padding: 12px 18px; border-radius: var(--r-md); background: var(--hz-ink); color: #fff; font-family: var(--mono); font-size: 17px; letter-spacing: .06em; }
.order-no .copy { color: var(--hz-lime); }
.copy { border: 0; background: transparent; cursor: pointer; color: var(--hz-violet); font-size: 13px; font-family: var(--font); font-weight: 700; }

.tabs { display: flex; gap: 32px; border-bottom: 1px solid var(--hz-line); margin-bottom: 26px; }
.tabs button { border: 0; background: none; padding: 0 0 14px; cursor: pointer; font-size: 15px; color: var(--hz-muted); position: relative; font-weight: 600; }
.tabs button.on { color: var(--hz-violet); font-weight: 800; }
.tabs button.on::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; border-radius: 2px; background: var(--hz-violet); }

.result { margin-top: 24px; }
.res-card { min-width: 0; border: 1px solid var(--hz-line); border-radius: var(--r-lg); background: #fff; overflow: hidden; overflow-wrap: anywhere; margin-bottom: 18px; box-shadow: var(--shadow); animation: rise .5s var(--ease) both; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
.res-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 26px; border-bottom: 1px solid var(--hz-line); background: linear-gradient(90deg, #fff, #FAFAF7); }
.res-top > div { min-width: 0; }
.res-top > .badge { flex-shrink: 0; }
.res-top b { font-size: 19px; font-weight: 900; letter-spacing: -.02em; }
.res-top small { display: block; color: var(--hz-muted); font-family: var(--mono); font-size: 12px; margin-top: 2px; }
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; padding: 5px 11px; border-radius: 999px; background: var(--hz-paper); color: var(--hz-ink-2); white-space: nowrap; }
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: currentColor; }
.badge.pending { color: var(--hz-warn); background: var(--hz-warn-050); }
.badge.processing { color: var(--hz-cyan-ink); background: var(--hz-cyan-050); }
.badge.done { color: var(--hz-ok); background: var(--hz-ok-050); }
.badge.failed, .badge.refunded { color: var(--hz-err); background: var(--hz-err-050); }
.badge.unused { color: var(--hz-violet-600); background: var(--hz-violet-050); }
.badge.disabled { color: var(--hz-faint); }
.res-body { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.res-body > div { min-width: 0; padding: 20px 26px; }
.res-body > div + div { border-left: 1px solid var(--hz-line); }
.res-body span { display: block; font-size: 12px; color: var(--hz-muted); margin-bottom: 4px; }
.res-body b { font-size: 15px; }
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); padding: 20px 26px 24px; border-top: 1px solid var(--hz-line); gap: 8px; }
.timeline div { font-size: 12px; color: var(--hz-faint); padding-top: 12px; border-top: 3px solid var(--hz-line-2); }
.timeline div.on { color: var(--hz-ink); border-top-color: var(--hz-violet); }
.timeline div.bad { color: var(--hz-err); border-top-color: var(--hz-err); }
.meter { height: 8px; border-radius: 4px; background: var(--hz-paper); overflow: hidden; margin-top: 10px; }
.meter i { display: block; height: 100%; background: linear-gradient(90deg, var(--hz-violet), var(--hz-violet) calc(100% - 10px), var(--hz-lime) calc(100% - 10px)); border-radius: 4px; transition: width 1s var(--ease); }

/* ---------- reveal (below-the-fold only; content stays readable without JS) ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- confirmation ---------- */
.redeem-confirm h2 { margin: 0 0 8px; font-size: 26px; font-weight: 900; letter-spacing: -.03em; }
.redeem-confirm-details { display: grid; gap: 0; margin: 20px 0 24px; border: 1px solid var(--hz-line); border-radius: var(--r-md); overflow: hidden; }
.redeem-confirm-details div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 12px; padding: 13px 16px; align-items: baseline; }
.redeem-confirm-details div + div { border-top: 1px solid var(--hz-line); }
.redeem-confirm-details div:first-child { background: var(--hz-violet-050); }
.redeem-confirm-details div:first-child b { color: var(--hz-violet-700); font-size: 16px; }
.redeem-confirm-details div:last-child { background: #FBFFE9; }
.redeem-confirm-details span { color: var(--hz-muted); font-size: 13px; }
.redeem-confirm-details b { overflow-wrap: anywhere; font-weight: 700; }
.redeem-confirm .btn + .btn { margin-top: 10px; }

/* ---------- account detection / guidance / retry ---------- */
.detected-account { font-weight: 700; color: var(--hz-violet-700); word-break: break-all; padding: 10px 12px; border-radius: var(--r-sm); background: var(--hz-violet-050); }
.detected-account.warn { color: var(--hz-warn); background: var(--hz-warn-050); }
.label-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.link-btn { background: none; border: 0; padding: 0; color: var(--hz-violet); font-size: 13px; font-weight: 700; cursor: pointer; }
.link-btn:hover { text-decoration: underline; text-underline-offset: 3px; }
.howto { margin: 4px 0 12px; border: 1px solid var(--hz-cyan); background: var(--hz-cyan-050); border-radius: var(--r-md); padding: 12px 16px; font-size: 14px; line-height: 1.75; }
.howto summary { cursor: pointer; font-weight: 700; color: var(--hz-cyan-ink); list-style: none; display: flex; align-items: center; gap: 8px; }
.howto summary::-webkit-details-marker { display: none; }
.howto summary::before { content: "?"; width: 20px; height: 20px; border-radius: 6px; background: var(--hz-cyan); color: var(--hz-ink); display: grid; place-items: center; font-size: 12px; font-weight: 900; }
.howto ol { margin: 10px 0 6px; padding-left: 20px; }
.howto li + li { margin-top: 6px; }
.howto a { color: var(--hz-violet-700); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.howto code { background: #fff; }
.howto .hint { color: var(--hz-cyan-ink); opacity: .85; }
.retry-banner { border-left: 4px solid var(--hz-lime); background: var(--hz-ink); color: #fff; border-radius: var(--r-sm); padding: 12px 16px; margin-bottom: 16px; font-size: 14px; line-height: 1.6; }

/* ---------- live progress (shared by redeem and query) ---------- */
.progress { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; margin: 22px 0 16px; text-align: left; }
.progress .step { display: flex; flex-direction: column; gap: 8px; font-size: 12.5px; color: var(--hz-faint); font-weight: 600; padding-top: 10px; border-top: 4px solid var(--hz-line-2); }
.progress .step i { width: 24px; height: 24px; border-radius: 7px; background: var(--hz-paper); display: inline-flex; align-items: center; justify-content: center; font-style: normal; font-size: 12px; font-weight: 800; font-family: var(--mono); flex: none; }
.progress .step.done { color: var(--hz-ink); border-top-color: var(--hz-violet); }
.progress .step.done i { background: var(--hz-violet); color: #fff; }
.progress .step.on { color: var(--hz-ink); border-top-color: var(--hz-cyan); }
.progress .step.on i { background: var(--hz-cyan); color: var(--hz-ink); animation: hz-pulse 1.6s ease-in-out infinite; }
.progress .step.bad { color: var(--hz-err); border-top-color: var(--hz-err); }
.progress .step.bad i { background: var(--hz-err); color: #fff; }
.progress .step:last-child.done { border-top-color: var(--hz-lime); }
.progress .step:last-child.done i { background: var(--hz-lime); color: var(--hz-ink); }
@keyframes hz-pulse { 50% { box-shadow: 0 0 0 6px rgba(99, 216, 239, .25); } }
.live-status { border-radius: var(--r-md); padding: 14px 16px; background: var(--hz-cyan-050); color: var(--hz-cyan-ink); font-size: 15px; font-weight: 600; line-height: 1.6; text-align: left; }
.live-status.bad { background: var(--hz-err-050); color: var(--hz-err); }
.live-status.good { background: #F4FFD1; color: var(--hz-lime-ink); box-shadow: 0 0 0 1.5px var(--hz-lime) inset; }
.live-meta { font-size: 12px; color: var(--hz-faint); margin-top: 8px; font-weight: 500; }
.live-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 18px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .faq .wrap { grid-template-columns: 1fr; gap: 36px; }
  .nav { display: none; }
}
@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  .site-head .wrap { height: 64px; gap: 16px; }
  .site-head .head-cta { height: 38px; padding: 0 14px; font-size: 14px; }
  .panel { padding: 24px 20px; border-radius: 18px; }
  .panel::before { right: 18px; width: 64px; height: 20px; }
  .res-body { grid-template-columns: 1fr; }
  .res-body > div + div { border-left: 0; border-top: 1px solid var(--hz-line); }
  .grid-2 { grid-template-columns: 1fr; }
  .brand small { display: none; }
  .faq { padding: 80px 0; }
  .progress { grid-template-columns: 1fr; gap: 4px; }
  .progress .step { flex-direction: row; align-items: center; border-top: 0; border-left: 4px solid var(--hz-line-2); padding: 6px 0 6px 10px; }
  .progress .step.done { border-left-color: var(--hz-violet); }
  .progress .step.on { border-left-color: var(--hz-cyan); }
  .progress .step.bad { border-left-color: var(--hz-err); }
  .progress .step:last-child.done { border-left-color: var(--hz-lime); }
  .redeem-confirm-details div { grid-template-columns: 1fr; gap: 2px; }
  .stepper div { padding: 10px; font-size: 13px; }
  .stepper div i { display: block; margin: 0 0 2px; }
  .site-foot .wrap { flex-direction: column; align-items: flex-start; }
}

/* Heavy display weight: system CJK fonts stop at semibold, so headings get a hairline
   stroke of their own colour to reach the VI's heavy grotesk weight. */
.display, .h2, .x-title, .x-sub-title, .x-tile h3, .x-aside-plan h3, .x-steps-list b, .x-close-card h2, .x-stage-word, .success h2, .panel h2, .redeem-confirm h2, .res-top b, .brand { -webkit-text-stroke: .022em currentColor; paint-order: stroke fill; }
.x-stage-word { -webkit-text-stroke-width: .03em; }