:root {
  color-scheme: light;
  --ink: #20292c;
  --muted: #626f70;
  --red: #ed3150;
  --red-dark: #cf2441;
  --mint: #d8f0e8;
  --mint-strong: #1d8c76;
  --yellow: #ffd66b;
  --blue: #dceefa;
  --paper: #fffdfb;
  --line: #e8ece9;
  --display: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --body: "Noto Sans CJK SC", "Microsoft YaHei", "PingFang SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
}

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

.section-shell {
  width: min(1160px, calc(100% - 64px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(32, 41, 44, 0.08);
  background: rgba(255, 253, 251, 0.96);
  backdrop-filter: blur(14px);
}

.header-inner {
  width: min(1280px, calc(100% - 64px));
  min-height: 82px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  font-size: 19px;
  font-weight: 800;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  object-fit: cover;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  color: #465255;
  font-size: 14px;
  font-weight: 650;
}

.site-nav a:not(.nav-download):hover,
.filing-link:hover,
.text-link:hover {
  color: var(--red);
}

.nav-download {
  min-width: 120px;
  padding: 10px 18px;
  border-radius: 6px;
  background: var(--red);
  color: white;
  text-align: center;
  transition: background-color 160ms ease, transform 160ms ease;
}

.nav-download:hover,
.button-primary:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: var(--ink);
  transition: transform 160ms ease;
}

.hero {
  position: relative;
  min-height: 670px;
  padding-top: 72px;
  padding-bottom: 102px;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: center;
  gap: 50px;
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-bottom: 20px;
  animation: rise-in 650ms ease-out both;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--mint-strong);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.hero .eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--red);
  font-size: 14px;
  letter-spacing: 0;
}

.eyebrow-mark {
  width: 26px;
  height: 3px;
  background: var(--yellow);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.hero h1 {
  margin-bottom: 22px;
  font-family: var(--display);
  font-size: 62px;
  font-weight: 750;
  line-height: 1.24;
}

.hero h1 span,
.showcase h2 span {
  color: var(--red);
}

.hero-description {
  max-width: 520px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 50px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  font-size: 15px;
  font-weight: 750;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button-primary {
  min-width: 180px;
  background: var(--red);
  color: white;
}

.button-secondary {
  border-color: #dfe5e2;
  background: transparent;
}

.button-secondary:hover {
  border-color: var(--ink);
  background: white;
}

.invite-inline {
  width: fit-content;
  min-height: 58px;
  margin-top: 28px;
  padding: 8px 10px 8px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: white;
  font-size: 14px;
}

.invite-inline > span:first-child {
  color: var(--muted);
}

.invite-inline strong {
  color: var(--red);
  font-size: 20px;
  letter-spacing: 1px;
}

.copy-link {
  min-width: 56px;
  min-height: 38px;
  padding: 6px 10px;
  border: 0;
  border-radius: 4px;
  background: var(--mint);
  color: #126e5e;
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
}

.copy-link:hover {
  background: #c5e8dc;
}

.hero-note {
  margin: 10px 0 0;
  color: #788382;
  font-size: 12px;
}

.hero-visual {
  position: relative;
  min-height: 500px;
  display: grid;
  place-items: center;
  isolation: isolate;
}

.hero-visual::before {
  position: absolute;
  z-index: -1;
  width: 400px;
  height: 400px;
  border: 1px solid #f5d9d6;
  border-radius: 50%;
  content: "";
}

.hero-visual::after {
  position: absolute;
  z-index: -2;
  inset: 32px -40px 18px 32px;
  background-color: #eff8f4;
  background-image: linear-gradient(rgba(29, 140, 118, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(29, 140, 118, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  clip-path: polygon(18% 0, 100% 0, 100% 82%, 78% 100%, 0 87%, 0 20%);
  content: "";
}

.visual-caption {
  position: absolute;
  top: 20px;
  left: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--mint-strong);
  font-size: 13px;
  font-weight: 750;
}

.caption-dot {
  width: 8px;
  height: 8px;
  background: var(--yellow);
  transform: rotate(45deg);
}

.phone-frame {
  width: 250px;
  height: 440px;
  margin-top: 25px;
  padding: 8px;
  border: 1px solid #e1e7e4;
  border-radius: 28px;
  background: white;
  box-shadow: 0 24px 60px rgba(29, 54, 47, 0.18);
  transform: rotate(3deg);
  overflow: hidden;
}

.phone-frame img {
  width: 100%;
  height: 100%;
  border-radius: 21px;
  object-fit: cover;
  object-position: top center;
}

.mascot-sticker {
  position: absolute;
  right: 4px;
  bottom: 52px;
  width: 140px;
  height: 140px;
  border: 7px solid white;
  border-radius: 24px;
  object-fit: cover;
  box-shadow: 0 14px 32px rgba(32, 41, 44, 0.15);
  transform: rotate(7deg);
}

.saving-note {
  position: absolute;
  bottom: 87px;
  left: 0;
  padding: 10px 15px 10px 10px;
  border: 1px solid #f0e5bc;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff9e9;
  box-shadow: 0 8px 20px rgba(32, 41, 44, 0.08);
  transform: rotate(-4deg);
}

.note-symbol {
  width: 38px;
  height: 38px;
  border-radius: 5px;
  display: grid;
  place-items: center;
  background: var(--yellow);
  color: #765500;
  font-size: 18px;
  font-weight: 850;
}

.saving-note strong,
.saving-note small {
  display: block;
}

.saving-note strong {
  font-size: 13px;
}

.saving-note small {
  color: var(--muted);
  font-size: 11px;
}

.hero-bottomline {
  position: absolute;
  right: 0;
  bottom: 34px;
  left: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  color: #667170;
  font-size: 13px;
}

.hero-bottomline i {
  width: 5px;
  height: 5px;
  background: var(--red);
  transform: rotate(45deg);
}

.intro-band {
  padding: 98px 0 90px;
  background: #f3f8f6;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 42px;
}

.section-heading h2,
.showcase h2,
.download-cta h2 {
  margin-bottom: 15px;
  font-family: var(--display);
  font-size: 42px;
  font-weight: 720;
  line-height: 1.38;
}

.section-heading > p:last-child,
.showcase-copy > p:not(.eyebrow) {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
}

.mobile-only {
  display: none;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.feature-item {
  position: relative;
  min-height: 275px;
  padding: 24px 22px;
  border: 1px solid rgba(32, 41, 44, 0.08);
  border-radius: 7px;
  background: white;
  overflow: hidden;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.feature-item:hover {
  box-shadow: 0 14px 28px rgba(32, 41, 44, 0.08);
  transform: translateY(-4px);
}

.feature-number {
  position: absolute;
  top: 21px;
  right: 21px;
  color: #a9b2b0;
  font-family: var(--display);
  font-size: 14px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  color: var(--ink);
  font-size: 20px;
  font-weight: 850;
}

.feature-coral .feature-icon { background: #ffe1e3; color: #ce2540; }
.feature-mint .feature-icon { background: #d8f0e8; color: #147b68; }
.feature-yellow .feature-icon { background: #fff0c5; color: #8b6700; }
.feature-blue .feature-icon { background: #dceefa; color: #276a91; }

.feature-item h3 {
  margin: 23px 0 9px;
  font-size: 19px;
  font-weight: 800;
}

.feature-item p {
  min-height: 72px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.feature-tag {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 3px;
  background: #f2f5f4;
  color: #4f5c5a;
  font-size: 11px;
  font-weight: 700;
}

.feature-disclaimer {
  margin: 18px 0 0;
  color: #77817f;
  font-size: 12px;
}

.coupon-scenes {
  padding: 105px 0 108px;
  background: #fffdfb;
}

.scenes-heading {
  max-width: 760px;
}

.scenes-heading > p:last-child {
  max-width: 720px;
}

.scene-layout {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 16px;
  align-items: stretch;
}

.scene-feature,
.scene-card {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: white;
  overflow: hidden;
}

.scene-feature {
  height: 548px;
  min-height: 0;
}

.scene-feature::after {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 24px;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(20, 27, 28, 0.72));
  content: "";
}

.scene-feature > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: top center;
}

.scene-feature-copy {
  position: absolute;
  z-index: 1;
  right: 32px;
  bottom: 27px;
  left: 32px;
  color: white;
}

.scene-label,
.scene-card span {
  color: var(--red);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.6px;
}

.scene-feature-copy .scene-label {
  color: var(--yellow);
}

.scene-feature-copy h3 {
  margin: 8px 0 6px;
  font-family: var(--display);
  font-size: 25px;
  line-height: 1.3;
}

.scene-feature-copy p {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 13px;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, minmax(0, 1fr));
  height: 548px;
  gap: 16px;
  min-height: 0;
}

.scene-card {
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: minmax(0, 1fr) auto;
}

.scene-card img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: top center;
}

.scene-card div {
  min-height: 100px;
  padding: 13px 16px 15px;
}

.scene-card strong,
.scene-card small {
  display: block;
}

.scene-card strong {
  margin: 7px 0 3px;
  color: var(--ink);
  font-size: 17px;
}

.scene-card small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.keyword-strip {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-strip span {
  padding: 6px 11px;
  border: 1px solid #e7ece9;
  border-radius: 4px;
  background: #f6faf8;
  color: #4f635e;
  font-size: 12px;
}

.showcase {
  min-height: 700px;
  padding-top: 110px;
  padding-bottom: 110px;
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: center;
  gap: 60px;
}

.showcase-copy {
  max-width: 440px;
}

.showcase h2 {
  margin-bottom: 20px;
}

.check-list {
  margin: 24px 0 25px;
  padding: 0;
  display: grid;
  gap: 12px;
  list-style: none;
  color: #45514f;
  font-size: 14px;
}

.check-list li {
  position: relative;
  padding-left: 25px;
}

.check-list li::before {
  position: absolute;
  top: 3px;
  left: 0;
  width: 16px;
  height: 16px;
  border: 1px solid #88cdb9;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #17816b;
  content: "✓";
  font-size: 10px;
  line-height: 1;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--red-dark);
  font-size: 14px;
  font-weight: 800;
}

.showcase-images {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.showcase-images::before {
  position: absolute;
  z-index: -1;
  inset: 44px 0;
  background: var(--blue);
  clip-path: polygon(8% 0, 100% 14%, 91% 100%, 0 86%);
  content: "";
}

.screen-shot {
  width: 44%;
  max-width: 240px;
  margin: 0;
  padding: 8px 8px 0;
  border: 1px solid #e5e9e7;
  border-radius: 9px;
  background: white;
  box-shadow: 0 18px 40px rgba(32, 41, 44, 0.13);
}

.screen-shot img {
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 16;
  border-radius: 5px;
  object-fit: cover;
  object-position: top center;
}

.screen-shot figcaption {
  padding: 9px 3px 11px;
  color: #465255;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.screenshot-main {
  transform: translateY(-18px) rotate(-3deg);
}

.screenshot-secondary {
  transform: translateY(24px) rotate(3deg);
}

.steps-band {
  padding: 88px 0 96px;
  background: #fff5e6;
}

.steps-heading {
  max-width: none;
  text-align: center;
}

.steps-heading .eyebrow {
  color: #b07900;
}

.steps-list {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
}

.steps-list li {
  position: relative;
  min-height: 142px;
  padding: 19px 23px;
  border-top: 1px solid #e8d9ba;
}

.steps-list li::after {
  position: absolute;
  top: -4px;
  right: -3px;
  width: 7px;
  height: 7px;
  background: var(--red);
  transform: rotate(45deg);
  content: "";
}

.steps-list li:last-child::after {
  display: none;
}

.steps-list li > span {
  display: block;
  margin-bottom: 9px;
  color: var(--red);
  font-family: var(--display);
  font-size: 13px;
}

.steps-list strong,
.steps-list small {
  display: block;
}

.steps-list strong {
  margin-bottom: 4px;
  font-size: 16px;
}

.steps-list small {
  color: var(--muted);
  font-size: 12px;
}

.steps-list b {
  color: var(--red-dark);
}

.faq-band {
  padding: 92px 0 100px;
  background: #f3f8f6;
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 90px;
  align-items: start;
}

.faq-grid h2 {
  margin-bottom: 15px;
  font-family: var(--display);
  font-size: 42px;
  line-height: 1.35;
}

.faq-intro {
  max-width: 280px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.faq-list {
  border-top: 1px solid #d8e5df;
}

.faq-list details {
  border-bottom: 1px solid #d8e5df;
}

.faq-list summary {
  padding: 19px 34px 19px 0;
  position: relative;
  color: var(--ink);
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 19px;
  right: 3px;
  color: var(--red);
  content: "+";
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
}

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

.faq-list details p {
  max-width: 700px;
  margin: -3px 35px 18px 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.download-cta {
  position: relative;
  min-height: 260px;
  margin-top: 80px;
  margin-bottom: 80px;
  padding: 42px 48px;
  border-radius: 8px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  background: var(--red);
  color: white;
  overflow: hidden;
}

.support-panel {
  position: relative;
  width: min(760px, calc(100vw - 40px));
  margin: 0;
  padding: 42px 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  grid-template-columns: 1fr 250px;
  align-items: center;
  gap: 48px;
  background: #f3f8f6;
}

.support-fab {
  position: fixed;
  z-index: 30;
  right: 18px;
  bottom: 24%;
  width: 58px;
  height: 58px;
  padding: 7px 4px;
  border: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  gap: 0;
  background: var(--red);
  box-shadow: 0 12px 28px rgba(207, 36, 65, 0.3);
  color: white;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
  transition: none;
}

.support-fab::before {
  position: absolute;
  inset: -6px;
  border: 1px solid rgba(237, 49, 80, 0.35);
  border-radius: inherit;
  animation: support-pulse 2.4s ease-out infinite;
  pointer-events: none;
  content: "";
}

.support-fab::after {
  position: absolute;
  inset: -6px;
  border: 1px solid rgba(255, 214, 107, 0.5);
  border-radius: inherit;
  animation: support-pulse 2.4s ease-out 1.2s infinite;
  pointer-events: none;
  content: "";
}

.support-fab:hover {
  background: var(--red-dark);
}

.support-fab-icon {
  width: 24px;
  height: 24px;
  border: 2px solid white;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 12px;
  line-height: 1;
}

.support-modal {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  padding: 20px;
  border: 0;
  display: none;
  place-items: center;
  background: transparent;
}

.support-modal[open] {
  display: grid;
}

.support-modal::backdrop {
  background: rgba(25, 33, 34, 0.45);
  backdrop-filter: blur(3px);
}

.support-close {
  position: absolute;
  top: 14px;
  right: 16px;
  z-index: 2;
  width: 34px;
  height: 34px;
  border: 1px solid #e3eae6;
  border-radius: 50%;
  background: white;
  color: var(--muted);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.support-close:hover {
  background: #f7faf8;
  color: var(--ink);
}

.support-copy h2 {
  max-width: 620px;
  margin-bottom: 10px;
  font-family: var(--display);
  font-size: 30px;
  line-height: 1.4;
}

.support-copy > p:not(.eyebrow) {
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 14px;
}

.wechat-copy-row {
  width: fit-content;
  min-height: 58px;
  padding: 8px 9px 8px 15px;
  border: 1px solid #dfe8e3;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: white;
}

.wechat-label {
  color: var(--muted);
  font-size: 13px;
}

.wechat-copy-row strong {
  color: #176e5f;
  font-size: 18px;
  letter-spacing: 0.3px;
}

.wechat-copy-row .copy-link {
  min-width: 92px;
}

.support-copy .support-note {
  margin: 10px 0 0;
  color: #7b8784;
  font-size: 12px;
}

@keyframes support-pulse {
  0% {
    opacity: 0.65;
    transform: scale(0.88);
  }
  100% {
    opacity: 0;
    transform: scale(1.18);
  }
}

.qr-card {
  padding: 14px;
  border: 1px solid #e3eae6;
  border-radius: 7px;
  display: grid;
  grid-template-columns: 104px 1fr;
  align-items: center;
  gap: 13px;
  background: white;
}

.qr-card img {
  width: 104px;
  height: 104px;
  border-radius: 4px;
  object-fit: contain;
}

.qr-card strong,
.qr-card span {
  display: block;
}

.qr-card strong {
  margin-bottom: 4px;
  font-size: 15px;
}

.qr-card span {
  color: var(--muted);
  font-size: 11px;
}

.download-cta::after {
  position: absolute;
  top: -82px;
  right: 220px;
  width: 245px;
  height: 390px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  transform: rotate(35deg);
  content: "";
}

.cta-mascot {
  position: relative;
  z-index: 1;
  width: 120px;
  height: 120px;
  border: 5px solid white;
  border-radius: 22px;
  overflow: hidden;
  transform: rotate(-5deg);
}

.cta-mascot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta-copy,
.cta-actions {
  position: relative;
  z-index: 1;
}

.download-cta .eyebrow {
  margin-bottom: 8px;
  color: #ffe89e;
}

.download-cta h2 {
  margin-bottom: 7px;
  font-size: 31px;
}

.download-cta p:not(.eyebrow) {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
}

.cta-actions {
  display: grid;
  gap: 9px;
}

.button-invite {
  cursor: pointer;
}

.button-dark {
  background: var(--ink);
  color: white;
}

.button-dark:hover {
  background: #101719;
  transform: translateY(-2px);
}

.button-light {
  border-color: rgba(255, 255, 255, 0.45);
  background: transparent;
  color: white;
}

.button-light:hover {
  background: rgba(255, 255, 255, 0.12);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #f7f9f7;
}

.footer-main {
  min-height: 118px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.footer-brand {
  font-size: 16px;
}

.footer-brand img {
  width: 42px;
  height: 42px;
}

.footer-main p {
  flex: 1;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.filing-link {
  color: #596563;
  font-size: 12px;
}

.footer-bottom {
  min-height: 46px;
  padding: 10px 32px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: center;
  gap: 22px;
  color: #84908e;
  font-size: 11px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr 0.85fr;
    gap: 20px;
  }

  .hero h1 {
    font-size: 52px;
  }

  .hero-visual {
    min-height: 460px;
    transform: scale(0.9);
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-item {
    min-height: 245px;
  }

  .feature-item p {
    min-height: auto;
  }

  .showcase {
    gap: 32px;
  }

  .download-cta {
    padding-inline: 32px;
    grid-template-columns: auto 1fr;
  }

  .support-panel {
    padding: 30px;
    grid-template-columns: 1fr 220px;
    gap: 24px;
  }

  .qr-card {
    grid-template-columns: 82px 1fr;
    padding: 10px;
  }

  .qr-card img {
    width: 82px;
    height: 82px;
  }

  .cta-actions {
    grid-column: 2;
    grid-template-columns: repeat(2, minmax(150px, 1fr));
  }
}

@media (max-width: 720px) {
  html {
    scroll-padding-top: 70px;
  }

  .section-shell,
  .header-inner {
    width: min(100% - 36px, 560px);
  }

  .header-inner {
    min-height: 68px;
    gap: 12px;
  }

  .brand {
    gap: 8px;
    font-size: 17px;
  }

  .brand img {
    width: 42px;
    height: 42px;
    border-radius: 12px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    padding: 0 18px;
    border-bottom: 1px solid var(--line);
    display: none;
    background: var(--paper);
  }

  .site-nav.is-open {
    padding-block: 12px 18px;
    display: grid;
    gap: 0;
  }

  .site-nav a:not(.nav-download) {
    padding: 11px 4px;
    border-bottom: 1px solid var(--line);
  }

  .nav-download {
    margin-top: 12px;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-6px) rotate(-45deg);
  }

  .hero {
    min-height: 0;
    padding-top: 48px;
    padding-bottom: 78px;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .hero-copy {
    padding-bottom: 0;
  }

  .hero .eyebrow {
    margin-bottom: 13px;
    font-size: 13px;
  }

  .hero h1 {
    margin-bottom: 15px;
    font-size: 44px;
    line-height: 1.28;
  }

  .hero-description {
    margin-bottom: 21px;
    font-size: 15px;
    line-height: 1.8;
  }

  .hero-actions {
    gap: 9px;
  }

  .button {
    min-height: 46px;
    padding: 11px 14px;
    font-size: 13px;
  }

  .button-primary {
    min-width: 0;
  }

  .invite-inline {
    min-height: 52px;
    margin-top: 18px;
  }

  .hero-visual {
    min-height: 420px;
    margin-top: 10px;
    transform: none;
  }

  .hero-visual::before {
    width: 300px;
    height: 300px;
  }

  .hero-visual::after {
    inset: 28px -18px 16px 14px;
  }

  .phone-frame {
    width: 205px;
    height: 360px;
  }

  .mascot-sticker {
    right: 4px;
    bottom: 42px;
    width: 112px;
    height: 112px;
    border-width: 5px;
    border-radius: 18px;
  }

  .saving-note {
    bottom: 70px;
    left: 0;
    padding: 7px 10px 7px 7px;
  }

  .note-symbol {
    width: 32px;
    height: 32px;
  }

  .hero-bottomline {
    bottom: 20px;
    gap: 10px;
    font-size: 11px;
  }

  .intro-band {
    padding: 66px 0 62px;
  }

  .section-heading {
    margin-bottom: 28px;
  }

  .eyebrow {
    margin-bottom: 12px;
    font-size: 11px;
  }

  .section-heading h2,
  .showcase h2 {
    font-size: 32px;
  }

  .mobile-only {
    display: initial;
  }

  .section-heading > p:last-child,
  .showcase-copy > p:not(.eyebrow) {
    font-size: 14px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .feature-item {
    min-height: auto;
    padding: 19px;
  }

  .feature-item h3 {
    margin-top: 16px;
    font-size: 17px;
  }

  .feature-item p {
    margin-bottom: 12px;
  }

  .feature-disclaimer {
    font-size: 11px;
    line-height: 1.7;
  }

  .coupon-scenes {
    padding: 67px 0 70px;
  }

  .scene-layout {
    grid-template-columns: 1fr;
  }

  .scene-feature {
    height: 390px;
  }

  .scene-feature > img {
    min-height: 0;
  }

  .scene-feature-copy {
    right: 22px;
    bottom: 20px;
    left: 22px;
  }

  .scene-feature-copy h3 {
    font-size: 22px;
  }

  .scene-grid {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    height: auto;
    gap: 10px;
  }

  .scene-card {
    min-height: 0;
    grid-template-rows: 176px auto;
  }

  .scene-card img {
    height: 176px;
    min-height: 0;
  }

  .scene-card div {
    min-height: 0;
    padding: 13px 14px 15px;
  }

  .scene-card strong {
    font-size: 14px;
  }

  .scene-card small {
    font-size: 10px;
  }

  .keyword-strip {
    gap: 6px;
  }

  .keyword-strip span {
    padding: 5px 8px;
    font-size: 10px;
  }

  .showcase {
    min-height: 0;
    padding-top: 68px;
    padding-bottom: 70px;
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .showcase-copy {
    max-width: none;
  }

  .showcase-images {
    min-height: 380px;
    gap: 14px;
  }

  .showcase-images::before {
    inset: 34px -12px;
  }

  .screen-shot {
    width: 46%;
    max-width: 190px;
    padding: 6px 6px 0;
  }

  .screen-shot figcaption {
    padding: 8px 2px 9px;
    font-size: 10px;
  }

  .steps-band {
    padding: 65px 0 68px;
  }

  .steps-heading {
    text-align: left;
  }

  .steps-heading h2 {
    font-size: 29px;
  }

  .steps-list {
    grid-template-columns: 1fr 1fr;
  }

  .steps-list li {
    min-height: 132px;
    padding: 16px 10px;
  }

  .steps-list li:nth-child(2)::after {
    display: none;
  }

  .steps-list li:nth-child(3),
  .steps-list li:nth-child(4) {
    border-top: 1px solid #e8d9ba;
  }

  .steps-list strong {
    font-size: 14px;
  }

  .steps-list small {
    font-size: 11px;
  }

  .faq-band {
    padding: 65px 0 68px;
  }

  .faq-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .faq-grid h2 {
    font-size: 32px;
  }

  .faq-intro {
    max-width: none;
    font-size: 13px;
  }

  .faq-list summary {
    padding-block: 16px;
    font-size: 14px;
  }

  .faq-list summary::after {
    top: 16px;
  }

  .faq-list details p {
    margin: -1px 28px 16px 0;
    font-size: 12px;
  }

  .download-cta {
    width: min(100% - 36px, 560px);
    min-height: 0;
    margin-top: 48px;
    margin-bottom: 48px;
    padding: 25px 21px;
    grid-template-columns: 62px 1fr;
    gap: 14px;
  }

  .support-panel {
    width: min(100%, 560px);
    padding: 22px 18px;
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .support-copy h2 {
    font-size: 24px;
  }

  .support-copy > p:not(.eyebrow) {
    margin-bottom: 15px;
    font-size: 13px;
  }

  .wechat-copy-row {
    width: 100%;
    gap: 9px;
  }

  .wechat-label {
    font-size: 12px;
  }

  .wechat-copy-row strong {
    flex: 1;
    font-size: 16px;
  }

  .wechat-copy-row .copy-link {
    min-width: 84px;
    padding-inline: 8px;
    font-size: 12px;
  }

  .support-copy .support-note {
    font-size: 11px;
  }

  .qr-card {
    width: 100%;
    grid-template-columns: 112px 1fr;
    padding: 12px;
  }

  .qr-card img {
    width: 112px;
    height: 112px;
  }

  .support-modal {
    padding: 14px;
  }

  .support-fab {
    right: 14px;
    bottom: 20%;
    width: 54px;
    height: 54px;
  }

  .cta-mascot {
    width: 62px;
    height: 62px;
    border-width: 3px;
    border-radius: 13px;
  }

  .download-cta .eyebrow {
    margin-bottom: 5px;
    font-size: 9px;
    letter-spacing: 0.8px;
  }

  .download-cta h2 {
    margin-bottom: 5px;
    font-size: 22px;
  }

  .download-cta p:not(.eyebrow) {
    font-size: 12px;
    line-height: 1.6;
  }

  .cta-actions {
    grid-column: 1 / -1;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .button-invite {
    grid-column: 1 / -1;
  }

  .cta-actions .button {
    padding-inline: 8px;
    font-size: 12px;
  }

  .footer-main {
    min-height: 0;
    padding-top: 25px;
    padding-bottom: 22px;
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  .footer-main p {
    flex-basis: 100%;
    order: 1;
    font-size: 12px;
  }

  .filing-link {
    margin-left: auto;
    font-size: 11px;
  }

  .footer-bottom {
    padding-inline: 18px;
    gap: 8px 15px;
    flex-wrap: wrap;
    justify-content: flex-start;
    font-size: 10px;
  }
}

@media (max-width: 380px) {
  .section-shell,
  .header-inner,
  .download-cta {
    width: calc(100% - 28px);
  }

  .hero h1 {
    font-size: 39px;
  }

  .hero-actions .button {
    flex: 1 1 auto;
  }

  .hero-visual {
    min-height: 360px;
  }

  .phone-frame {
    width: 178px;
    height: 315px;
  }

  .mascot-sticker {
    right: 0;
    bottom: 30px;
    width: 92px;
    height: 92px;
  }

  .saving-note {
    bottom: 55px;
  }

  .steps-list small {
    max-width: 145px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}