:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-subtle: #f8faf9;
  --surface-muted: #f0f3f2;
  --line: #d9e1de;
  --line-strong: #c6d1cd;
  --text: #14211d;
  --text-soft: #4f5f59;
  --muted: #718079;
  --green: #176b5a;
  --green-hover: #125749;
  --green-soft: #eaf3f0;
  --cyan: #2b7187;
  --red: #c8475c;
  --amber: #a66a22;
  --shadow: 0 12px 32px rgba(23, 39, 33, .07), 0 2px 7px rgba(23, 39, 33, .035);
}

* {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html {
  background: var(--bg);
}

body {
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(31, 51, 44, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 51, 44, .022) 1px, transparent 1px);
  background-position: -1px -1px;
  background-size: 32px 32px;
}

.ambient {
  display: none;
}

header {
  width: calc(100% - 40px);
  max-width: 1180px;
  min-height: 64px;
  margin: 16px auto 0;
  padding: 11px 14px;
  border: 1px solid rgba(207, 216, 212, .92);
  border-radius: 16px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 6px 18px rgba(23, 39, 33, .045);
  backdrop-filter: blur(12px);
}

.header-left {
  gap: 18px;
}

.logo {
  gap: 10px;
  color: var(--text);
}

.logo > span {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--green);
  color: #fff;
  box-shadow: 0 5px 12px rgba(23, 107, 90, .15);
}

.logo b {
  font-size: 13px;
  letter-spacing: -.01em;
}

.product-switch {
  gap: 3px;
  padding: 4px;
  border-color: #e1e6e4;
  border-radius: 12px;
  background: #f1f4f3;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .7);
}

.product-switch a,
.product-switch > span {
  min-height: 34px;
  padding: 8px 13px;
  border-radius: 8px;
  color: #5d6c66;
  font-size: 10px;
  font-weight: 800;
  transition: color .18s ease, background .18s ease, box-shadow .18s ease;
}

.product-switch a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, .78);
}

.product-switch a.active {
  color: #fff;
  background: var(--green);
  box-shadow: 0 4px 10px rgba(23, 107, 90, .17);
}

.product-switch a.active:hover {
  color: #fff;
  background: var(--green-hover);
}

.product-switch i {
  width: 5px;
  height: 5px;
}

.product-switch small {
  display: none;
}

.service {
  min-height: 34px;
  padding: 8px 12px;
  border-color: #dce3e0;
  background: #fbfcfc;
  color: #566660;
  font-size: 10px;
  font-weight: 650;
}

.service i {
  width: 6px;
  height: 6px;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(23, 107, 90, .08);
}

.portal-tabs {
  width: min(980px, calc(100% - 40px));
  margin: 12px auto 0;
  padding: 5px;
  gap: 4px;
  border-color: rgba(207, 216, 212, .96);
  border-radius: 14px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 6px 18px rgba(23, 39, 33, .045);
}

.portal-tabs button {
  min-height: 44px;
  gap: 8px;
  border-radius: 9px;
  color: #53635d;
  font-size: 11px;
  font-weight: 800;
  transition: color .18s ease, background .18s ease, box-shadow .18s ease;
}

.portal-tabs button span {
  color: #87938e;
  font-size: 8px;
}

.portal-tabs button:hover {
  color: var(--text);
  background: #f2f5f4;
}

.portal-tabs button.active {
  color: #fff;
  background: var(--green);
  box-shadow: 0 5px 12px rgba(23, 107, 90, .16);
}

.portal-tabs button.active:hover {
  color: #fff;
  background: var(--green-hover);
}

.portal-tabs button.active span {
  color: rgba(255, 255, 255, .72);
}

main.portal-view {
  width: 100%;
  max-width: 1120px;
  min-height: auto;
  padding: 34px 30px 68px;
  grid-template-columns: minmax(0, 1.04fr) minmax(420px, .96fr);
  gap: 52px;
  align-items: start;
}

.intro {
  padding-top: 18px;
}

.kicker,
.mini {
  color: var(--green);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .18em;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--green);
}

.intro h1 {
  margin: 18px 0 20px;
  color: var(--text);
  font-size: clamp(44px, 4vw, 56px);
  line-height: 1.08;
  letter-spacing: -.055em;
}

.intro h1 em {
  display: inline-block;
  color: #4a5b55;
  font-style: normal;
  white-space: nowrap;
}

.intro > p {
  max-width: 540px;
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.85;
}

.steps {
  gap: 12px;
  margin-top: 34px;
}

.steps > div {
  gap: 6px;
}

.steps b {
  color: #7d8a85;
  font-size: 9px;
  letter-spacing: .04em;
}

.steps span {
  color: #566660;
  font-size: 11px;
  font-weight: 650;
}

.steps .active b {
  color: var(--green);
}

.steps .active span {
  color: var(--text);
}

.steps > i {
  width: 42px;
  background: #cfd8d4;
}

.trust {
  gap: 7px;
  margin-top: 28px;
}

.trust span {
  padding: 7px 10px;
  border-color: #c4d4ce;
  border-radius: 8px;
  background: #f0f5f3;
  color: #3f6055;
  font-size: 9px;
  font-weight: 650;
}

.redeem-card {
  min-height: 0;
  padding: 26px;
  border-color: var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card-head {
  margin-bottom: 22px;
}

.card-head h2 {
  margin-top: 7px;
  color: var(--text);
  font-size: 23px;
  letter-spacing: -.035em;
}

.card-head > span {
  padding: 7px 10px;
  border-color: #dce3e0;
  border-radius: 999px;
  background: #f7f9f8;
  color: #687771;
  font-size: 9px;
  font-weight: 650;
}

.stage.active {
  animation: rise .2s ease;
}

label {
  gap: 9px;
  margin-bottom: 16px;
  color: #31413b;
  font-size: 11px;
  font-weight: 750;
}

input,
textarea {
  border-color: #d5ddda;
  border-radius: 10px;
  background: #fbfcfc;
  color: var(--text);
  transition: border-color .18s ease, background .18s ease, box-shadow .18s ease;
}

input {
  height: 50px;
  padding: 13px 14px;
  letter-spacing: .025em;
}

textarea {
  padding: 13px 14px;
}

input::placeholder,
textarea::placeholder {
  color: #87938e;
}

input:hover,
textarea:hover {
  border-color: #b9c7c2;
  background: #fff;
}

input:focus,
textarea:focus {
  border-color: var(--green);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(23, 107, 90, .11);
}

button,
.guide a {
  border-radius: 10px;
  transition: color .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease, transform .12s ease;
}

.primary {
  min-height: 48px;
  padding: 12px 14px;
  background: var(--green);
  color: #fff;
  font-size: 12px;
  box-shadow: 0 6px 14px rgba(23, 107, 90, .16);
}

.primary:hover {
  background: var(--green-hover);
  box-shadow: 0 8px 18px rgba(23, 107, 90, .2);
  transform: translateY(-1px);
}

.primary:active {
  transform: translateY(0);
}

.secondary {
  min-height: 46px;
  border-color: #d4ddda;
  background: #f4f6f5;
  color: #2c3e37;
  font-size: 11px;
}

.secondary:hover {
  border-color: #c3cfca;
  background: #e9eeec;
}

button:focus-visible,
.guide a:focus-visible,
.product-switch a:focus-visible {
  outline: 3px solid rgba(23, 107, 90, .18);
  outline-offset: 2px;
}

button:disabled {
  box-shadow: none;
  transform: none;
}

.hint,
.privacy {
  color: var(--muted);
  font-size: 9px;
  line-height: 1.6;
}

.code-summary {
  border-color: #bdd0c8;
  border-radius: 10px;
  background: var(--green-soft);
  color: #31443c;
}

.code-summary b {
  color: var(--green);
}

.guide article {
  border-color: #dbe2df;
  border-radius: 10px;
  background: #f8faf9;
}

.guide article > span {
  border-radius: 7px;
  background: #e5eeea;
  color: var(--green);
}

.guide b {
  color: #263730;
}

.guide p {
  color: #66756f;
}

.guide a {
  background: #e8eeeb;
  color: #2e473d;
}

.guide a:hover {
  background: #dfe8e4;
}

.recognition {
  border-color: #dbe2df;
  background: #f8faf9;
}

.recognition > i {
  background: #e6ebe9;
  color: #66756f;
}

.recognition b {
  color: #31413b;
}

.recognition span {
  color: #6e7c76;
}

.recognition.success {
  border-color: #aecabe;
  background: #edf5f2;
}

.recognition.success > i {
  background: var(--green);
  color: #fff;
}

.recognition.success b {
  color: var(--green);
}

.recognition.error {
  border-color: rgba(200, 71, 92, .28);
  background: rgba(200, 71, 92, .045);
}

.check {
  color: var(--text-soft);
}

#errorBox,
.page-error {
  border-color: rgba(200, 71, 92, .24);
  background: rgba(200, 71, 92, .055);
  color: #a83548;
}

.pulse {
  border-color: #b9d2c8;
  background: #edf5f2;
  box-shadow: 0 5px 16px rgba(23, 107, 90, .08);
}

.pulse span {
  background: var(--green);
}

.status-label {
  color: var(--green);
}

#statusStage > p {
  color: var(--text-soft);
}

.task-meta {
  background: #f1f4f3;
  color: #263730;
}

.task-meta span,
.record-details span {
  color: var(--muted);
}

.record-details > div {
  border-color: #d9e1de;
  background: #fafbfb;
}

.record-details b {
  color: #24352e;
}

.progress {
  background: #dce4e1;
}

.progress i {
  background: linear-gradient(90deg, var(--green), #2c7780);
}

.success-account {
  border-color: #b3cec3;
  background: #edf5f2;
  color: #284a3e;
}

.success-account i {
  background: var(--green);
  color: #fff;
}

.success-account b {
  color: var(--green);
}

.query-result {
  border-color: #d7dfdc;
  background: #fafbfb;
}

.query-result.unused {
  border-color: #b4cfc4;
  background: #eef5f2;
}

.query-result.used {
  border-color: #b9cfd7;
  background: #f0f5f7;
}

.query-result.inactive {
  border-color: #dcc9aa;
  background: #faf6ed;
}

.query-result-head {
  border-color: #d9e1de;
}

.query-result-head span,
.query-result-grid span {
  color: var(--muted);
}

.query-result-head b {
  color: var(--green);
}

.query-result.used .query-result-head b {
  color: var(--cyan);
}

.query-result-grid b {
  color: #263730;
}

.portal-page {
  max-width: 980px;
  min-height: calc(100vh - 214px);
  padding: 30px 30px 68px;
}

.portal-page-shell {
  padding: 30px;
  border-color: var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.page-heading {
  padding-bottom: 22px;
  border-color: var(--line);
}

.page-heading > span {
  color: var(--green);
  font-size: 9px;
  letter-spacing: .18em;
}

.page-heading h1 {
  color: var(--text);
  font-size: 29px;
}

.page-heading p {
  color: var(--text-soft);
  font-size: 11px;
}

.page-form {
  padding-top: 23px;
}

.guide-shell {
  padding: 0;
}

.guide-shell .page-heading {
  padding: 30px;
}

.chatgpt-guide-cards {
  gap: 11px;
  padding: 22px 30px 30px;
}

.chatgpt-guide-cards article {
  padding: 18px;
  border-color: #d8e1dd;
  border-radius: 12px;
  background: #f9fbfa;
}

.guide-number {
  background: #e5efeb;
  color: var(--green);
}

.chatgpt-guide-cards h2 {
  color: #205c4c;
}

.chatgpt-guide-cards ol {
  color: #50625b;
}

.guide-links a {
  border-color: #bfd1ca;
  background: #fff;
  color: #245f50;
}

.guide-links a:hover {
  border-color: var(--green);
  background: var(--green-soft);
}

footer {
  width: calc(100% - 40px);
  max-width: 1120px;
  padding: 18px 4px 24px;
  border-color: #d5ddda;
  color: #67756f;
}

body.review .pulse span {
  background: #b4772f;
}

@media (max-width: 1040px) and (min-width: 901px) {
  main.portal-view {
    grid-template-columns: minmax(0, 1fr) minmax(400px, .92fr);
    gap: 38px;
  }

  .intro h1 {
    font-size: 46px;
  }
}

@media (max-width: 900px) {
  header {
    width: calc(100% - 32px);
  }

  .portal-tabs {
    width: calc(100% - 32px);
  }

  main.portal-view {
    max-width: 720px;
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 28px 24px 58px;
  }

  .intro {
    padding-top: 4px;
  }

  .intro h1 {
    font-size: 46px;
  }

  .intro > p {
    max-width: 620px;
  }

  .redeem-card {
    width: 100%;
  }

  .portal-page {
    padding: 28px 20px 58px;
  }
}

@media (max-width: 760px) {
  header {
    align-items: flex-start;
    gap: 12px;
    margin-top: 12px;
    padding: 12px;
  }

  .header-left {
    width: 100%;
    gap: 11px;
  }

  .product-switch {
    max-width: 100%;
  }

  .product-switch a,
  .product-switch > span {
    padding: 8px 11px;
  }
}

@media (max-width: 560px) {
  header {
    width: calc(100% - 24px);
  }

  .logo b {
    font-size: 12px;
  }

  .portal-tabs {
    width: calc(100% - 24px);
    grid-template-columns: repeat(3, 1fr);
    margin-top: 10px;
  }

  .portal-tabs button {
    justify-content: center;
    min-height: 42px;
    padding: 8px 5px;
    font-size: 10px;
  }

  .portal-tabs button span {
    display: none;
  }

  main.portal-view {
    gap: 25px;
    padding: 26px 16px 48px;
  }

  .intro h1 {
    margin: 15px 0 17px;
    font-size: 38px;
  }

  .intro > p {
    font-size: 12px;
  }

  .steps {
    gap: 8px;
    margin-top: 27px;
  }

  .steps > i {
    width: 22px;
  }

  .steps span {
    font-size: 10px;
  }

  .trust {
    margin-top: 23px;
  }

  .redeem-card {
    padding: 21px;
    border-radius: 16px;
  }

  .portal-page-shell {
    padding: 22px;
    border-radius: 16px;
  }

  .guide-shell {
    padding: 0;
  }

  .guide-shell .page-heading {
    padding: 23px 21px;
  }

  .chatgpt-guide-cards {
    padding: 18px 20px 24px;
  }

  footer {
    width: calc(100% - 32px);
  }
}

@media (max-width: 380px) {
  .intro h1 {
    font-size: 32px;
  }

  .intro h1 em {
    font-size: .9em;
  }

  .product-switch a,
  .product-switch > span {
    padding-inline: 9px;
  }
}