:root {
  color-scheme: dark;
  --bg: #0d0f12;
  --bg-soft: #14171b;
  --panel: #1b1e23;
  --panel-2: #22262c;
  --paper: #f4f3ef;
  --paper-2: #e7e6e1;
  --ink: #17191d;
  --text: #f7f7f5;
  --muted: #b7b9bc;
  --muted-dark: #62666c;
  --line: rgba(255, 255, 255, 0.13);
  --line-dark: rgba(23, 25, 29, 0.14);
  --orange: #ff6b16;
  --orange-bright: #ff8a22;
  --gold: #f2b643;
  --green: #59b98d;
  --danger: #ef7e72;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  --content: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI Variable", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

body.menu-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(242, 182, 67, 0.95);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--paper);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: 72px;
  border-bottom: 1px solid var(--line);
  background: rgba(13, 15, 18, 0.9);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  text-decoration: none;
  font-size: 17px;
  font-weight: 760;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--orange-bright), var(--gold));
  box-shadow: inset 0 -3px 7px rgba(77, 32, 0, 0.24), 0 0 24px rgba(255, 107, 22, 0.22);
}

.brand-sub {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 650;
  transition: color 160ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
}

.nav-buy,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 760;
  letter-spacing: 0;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.nav-buy,
.button-primary {
  color: #17120d;
  background: var(--orange);
  box-shadow: 0 12px 28px rgba(255, 107, 22, 0.22);
}

.nav-buy:hover,
.button-primary:hover {
  background: var(--orange-bright);
  transform: translateY(-1px);
}

.button-secondary {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.05);
}

.button-secondary:hover {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.09);
}

.button:disabled {
  opacity: 0.48;
  cursor: not-allowed;
  transform: none;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: transparent;
  cursor: pointer;
}

.menu-button span,
.menu-button::before,
.menu-button::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  transition: transform 160ms ease, opacity 160ms ease;
}

.menu-open .menu-button span {
  opacity: 0;
}

.menu-open .menu-button::before {
  transform: translateY(6px) rotate(45deg);
}

.menu-open .menu-button::after {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: min(82svh, 820px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: #171612 url("./promptcard-hero.png") center 34% / cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 10, 12, 0.94) 0%, rgba(9, 10, 12, 0.72) 38%, rgba(9, 10, 12, 0.16) 72%), linear-gradient(0deg, rgba(9, 10, 12, 0.92), transparent 52%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 96px 0 72px;
}

.hero-copy {
  max-width: 700px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  color: #f5d8bf;
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 18px rgba(255, 107, 22, 0.55);
}

.hero h1 {
  max-width: 680px;
  margin: 0;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 1.02;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-lead {
  max-width: 620px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.65;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
}

.hero-note {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

.hero-note span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-note span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

.section {
  padding: 92px 0;
}

.section-paper {
  color: var(--ink);
  background: var(--paper);
}

.section-dark {
  background: var(--bg);
}

.section-soft {
  background: var(--bg-soft);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 42px;
}

.section-heading h2 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-heading p {
  max-width: 430px;
  margin: 0;
  color: var(--muted-dark);
  text-wrap: pretty;
}

.section-dark .section-heading p,
.section-soft .section-heading p {
  color: var(--muted);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.price-card {
  position: relative;
  min-height: 316px;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 20px 50px rgba(28, 29, 32, 0.08);
}

.price-card.is-featured {
  color: var(--text);
  border-color: rgba(255, 107, 22, 0.5);
  background: var(--panel);
  box-shadow: 0 26px 60px rgba(21, 18, 15, 0.22);
}

.price-label {
  color: var(--muted-dark);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.is-featured .price-label {
  color: #e7c6ac;
}

.price-value {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin-top: 22px;
}

.price-value strong {
  font-size: 54px;
  line-height: 1;
  letter-spacing: 0;
}

.price-value span {
  color: var(--muted-dark);
}

.is-featured .price-value span {
  color: var(--muted);
}

.credit-count {
  margin-top: 14px;
  font-size: 23px;
  font-weight: 760;
}

.price-copy {
  margin: 10px 0 26px;
  color: var(--muted-dark);
  font-size: 14px;
}

.is-featured .price-copy {
  color: var(--muted);
}

.price-card .button {
  width: 100%;
  margin-top: auto;
}

.price-card:not(.is-featured) .button-secondary {
  color: #111;
  border-color: rgba(23, 25, 29, 0.28);
  background: #f0efeb;
  font-weight: 800;
}

.price-card:not(.is-featured) .button-secondary:hover {
  color: #000;
  border-color: rgba(23, 25, 29, 0.48);
  background: #e4e2dd;
}

.featured-tag {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 5px 9px;
  border-radius: 999px;
  color: #17120d;
  background: var(--gold);
  font-size: 11px;
  font-weight: 800;
}

.fine-print {
  margin: 24px 0 0;
  color: var(--muted-dark);
  font-size: 13px;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.workflow-item {
  min-height: 230px;
  padding: 30px;
  border-right: 1px solid var(--line);
}

.workflow-item:last-child {
  border-right: 0;
}

.step-number {
  color: var(--orange);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.workflow-item h3 {
  margin: 34px 0 10px;
  font-size: 24px;
}

.workflow-item p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.product-band {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 64px;
}

.product-image {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.product-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-copy h2 {
  margin: 0;
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.08;
}

.product-copy > p {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.feature-list {
  display: grid;
  gap: 0;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.feature-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.feature-list strong {
  color: #f5c6a4;
  font-size: 13px;
  text-transform: uppercase;
}

.feature-list span {
  color: var(--muted);
}

.compliance-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
  align-items: start;
}

.compliance-intro h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.08;
}

.compliance-intro p {
  margin: 20px 0 0;
  color: var(--muted-dark);
}

.fact-table {
  border-top: 1px solid var(--line-dark);
}

.fact-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line-dark);
}

.fact-row dt {
  color: var(--muted-dark);
}

.fact-row dd {
  margin: 0;
  font-weight: 650;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  padding: 22px 44px 22px 0;
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 18px;
  right: 0;
  color: var(--orange);
  font-size: 24px;
  font-weight: 400;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  max-width: 800px;
  margin: -6px 0 24px;
  color: var(--muted);
}

.site-footer {
  padding: 52px 0 30px;
  border-top: 1px solid var(--line);
  background: #090b0d;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 38px;
}

.footer-brand p {
  max-width: 380px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-column h2 {
  margin: 0 0 14px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-column a,
.footer-column span {
  display: block;
  margin: 8px 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.footer-column a:hover {
  color: var(--text);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
}

.footer-bottom a {
  text-decoration: none;
}

.icp-link:empty {
  display: none;
}

.page-hero {
  padding: 82px 0 50px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}

.page-hero .eyebrow {
  margin-bottom: 14px;
}

.page-hero h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(40px, 5vw, 66px);
  line-height: 1.08;
}

.page-hero p {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.document {
  color: var(--ink);
  background: var(--paper);
}

.document-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 760px);
  gap: 70px;
  align-items: start;
  padding: 68px 0 100px;
}

.document-nav {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 10px;
  color: var(--muted-dark);
  font-size: 13px;
}

.document-nav a {
  text-decoration: none;
}

.document-nav a:hover {
  color: var(--ink);
}

.document-content h2 {
  margin: 50px 0 12px;
  font-size: 28px;
  line-height: 1.25;
}

.document-content h2:first-child {
  margin-top: 0;
}

.document-content h3 {
  margin: 30px 0 8px;
  font-size: 20px;
}

.document-content p,
.document-content li {
  color: #4f5358;
}

.document-content ul,
.document-content ol {
  padding-left: 22px;
}

.document-note {
  margin: 28px 0;
  padding: 18px 20px;
  border-left: 3px solid var(--orange);
  color: #44372f;
  background: #fff7ef;
}

.checkout-page {
  min-height: calc(100svh - 72px);
  background: var(--paper);
  color: var(--ink);
}

.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 72px;
  align-items: start;
  padding: 72px 0 100px;
}

.checkout-intro h1 {
  margin: 0;
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.04;
}

.checkout-intro > p {
  max-width: 640px;
  margin: 22px 0 0;
  color: var(--muted-dark);
  font-size: 18px;
}

.package-selector {
  display: grid;
  margin-top: 42px;
  border-top: 1px solid var(--line-dark);
}

.package-option {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 18px;
  width: 100%;
  min-height: 86px;
  padding: 12px 4px;
  border: 0;
  border-bottom: 1px solid var(--line-dark);
  color: var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.package-radio {
  width: 20px;
  height: 20px;
  border: 2px solid #a9abb0;
  border-radius: 50%;
  box-shadow: inset 0 0 0 4px var(--paper);
}

.package-option.is-selected .package-radio {
  border-color: var(--orange);
  background: var(--orange);
}

.package-copy strong {
  display: block;
  font-size: 19px;
}

.package-copy small {
  display: block;
  margin-top: 3px;
  color: var(--muted-dark);
}

.package-price {
  font-size: 22px;
  font-weight: 800;
}

.checkout-tool {
  position: sticky;
  top: 104px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--panel);
  box-shadow: 0 28px 70px rgba(20, 21, 24, 0.22);
}

.checkout-tool.is-payment-active {
  position: static;
}

.checkout-tool h2 {
  margin: 0;
  font-size: 24px;
}

.checkout-summary {
  display: grid;
  gap: 12px;
  margin: 22px 0 26px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

.summary-row strong {
  color: var(--text);
  font-size: 16px;
}

.auth-block {
  display: grid;
  gap: 12px;
}

.field-label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.field-input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
  outline: none;
}

.field-input:focus {
  border-color: rgba(255, 107, 22, 0.78);
}

.otp-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.otp-row .button {
  min-width: 118px;
}

.signed-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signed-in strong,
.signed-in span {
  display: block;
}

.signed-in span {
  color: var(--muted);
  font-size: 12px;
}

.text-button {
  padding: 0;
  border: 0;
  color: #f4b481;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
}

.agreement {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  margin: 20px 0 16px;
  color: var(--muted);
  font-size: 12px;
}

.agreement input {
  width: 17px;
  height: 17px;
  margin: 2px 0 0;
  accent-color: var(--orange);
}

.agreement a {
  color: #f4c29d;
}

.pay-button {
  width: 100%;
  min-height: 54px;
  font-size: 17px;
}

.pay-method {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
}

.alipay-wordmark {
  color: #78b9ff;
  font-weight: 760;
}

.payment-qr {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.payment-qr-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.payment-qr-head div > span,
.payment-qr-head div > strong {
  display: block;
}

.payment-qr-head div > span {
  color: var(--muted);
  font-size: 12px;
}

.payment-qr-head div > strong {
  margin-top: 3px;
  color: var(--text);
  font-size: 24px;
}

.payment-status {
  flex: 0 0 auto;
  padding: 6px 9px;
  border: 1px solid rgba(255, 174, 73, 0.35);
  border-radius: 999px;
  color: #ffd69b;
  background: rgba(255, 145, 0, 0.12);
  font-size: 11px;
  font-weight: 760;
}

.payment-status.is-paid {
  border-color: rgba(68, 205, 139, 0.42);
  color: #9ce8c0;
  background: rgba(35, 170, 105, 0.13);
}

.payment-status.is-error {
  border-color: rgba(255, 105, 105, 0.4);
  color: #ffb2aa;
  background: rgba(214, 70, 61, 0.13);
}

.payment-qr-code {
  width: min(100%, 304px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  margin: 20px auto 14px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: #fff;
}

.payment-qr-code canvas {
  display: block;
  width: 100% !important;
  height: auto !important;
  aspect-ratio: 1;
}

.payment-qr-hint {
  margin: 0;
  color: var(--muted);
  text-align: center;
  font-size: 13px;
  line-height: 1.65;
}

.payment-qr-actions {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  text-align: center;
}

.payment-qr-actions .button {
  width: 100%;
}

.payment-qr-actions .text-button {
  justify-self: center;
  text-decoration: none;
}

.form-message {
  min-height: 22px;
  margin: 12px 0 0;
  color: #f3c09a;
  font-size: 13px;
}

.form-message.is-error {
  color: var(--danger);
}

.form-message.is-success {
  color: #82d9b1;
}

.is-hidden {
  display: none !important;
}

.success-page {
  min-height: calc(100svh - 72px);
  display: grid;
  place-items: center;
  padding: 60px 20px;
  background: #101215;
}

.success-panel {
  width: min(620px, 100%);
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #bde8d2;
  font-size: 13px;
  font-weight: 760;
}

.status-line::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
}

.success-panel h1 {
  margin: 18px 0 12px;
  font-size: clamp(36px, 7vw, 56px);
  line-height: 1.05;
}

.success-panel > p {
  margin: 0;
  color: var(--muted);
}

.balance-result {
  margin-top: 26px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.balance-result span,
.balance-result strong {
  display: block;
}

.balance-result span {
  color: var(--muted);
  font-size: 13px;
}

.balance-result strong {
  margin-top: 4px;
  color: var(--orange-bright);
  font-size: 34px;
}

.success-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.support-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  padding: 72px 0 100px;
}

.support-grid h2 {
  margin: 0;
  font-size: 36px;
}

.support-grid p {
  color: var(--muted-dark);
}

.support-list {
  border-top: 1px solid var(--line-dark);
}

.support-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--line-dark);
}

.support-item strong,
.support-item span {
  display: block;
}

.support-item span {
  margin-top: 5px;
  color: var(--muted-dark);
}

.notice-strip {
  padding: 14px 20px;
  color: #4d3a2c;
  background: #fff3e6;
  border-bottom: 1px solid #ead7c6;
  text-align: center;
  font-size: 13px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media (max-width: 920px) {
  .menu-button {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 72px;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    align-content: start;
    gap: 0;
    padding: 24px 20px;
    background: rgba(13, 15, 18, 0.98);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 180ms ease, visibility 0s linear 180ms;
  }

  .menu-open .site-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }

  .site-nav a {
    padding: 16px 4px;
    border-bottom: 1px solid var(--line);
    font-size: 17px;
  }

  .site-nav .nav-buy {
    margin-top: 22px;
    border: 0;
  }

  .section-heading,
  .product-band,
  .compliance-grid,
  .checkout-layout,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 16px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .price-card {
    min-height: 0;
  }

  .workflow {
    grid-template-columns: 1fr;
  }

  .workflow-item {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .workflow-item:last-child {
    border-bottom: 0;
  }

  .checkout-layout {
    gap: 42px;
  }

  .checkout-tool {
    position: static;
  }

  .document-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .document-nav {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, var(--content));
  }

  .site-header {
    height: 64px;
  }

  .site-nav {
    top: 64px;
  }

  .brand-sub {
    display: none;
  }

  .hero {
    min-height: calc(100svh - 96px);
    background-position: 58% 26%;
  }

  .hero::before {
    background: linear-gradient(0deg, rgba(8, 9, 11, 0.98) 0%, rgba(8, 9, 11, 0.8) 54%, rgba(8, 9, 11, 0.25) 100%);
  }

  .hero-inner {
    padding: 58px 0 38px;
  }

  .hero h1 {
    font-size: clamp(42px, 12vw, 56px);
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-actions .hero-learn {
    display: none;
  }

  .hero-lead {
    font-size: 17px;
  }

  .hero-note {
    gap: 8px 16px;
    margin-top: 20px;
  }

  .section {
    padding: 66px 0;
  }

  .section-heading {
    margin-bottom: 30px;
  }

  .price-card {
    padding: 24px;
  }

  .product-band {
    gap: 38px;
  }

  .feature-list li,
  .fact-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }

  .page-hero {
    padding: 62px 0 38px;
  }

  .document-layout,
  .support-grid,
  .checkout-layout {
    padding: 52px 0 72px;
  }

  .document-nav {
    grid-template-columns: 1fr;
  }

  .checkout-tool,
  .success-panel {
    padding: 22px;
  }

  .package-option {
    grid-template-columns: 24px 1fr auto;
    gap: 12px;
  }

  .otp-row {
    grid-template-columns: 1fr;
  }

  .otp-row .button {
    width: 100%;
  }
}