:root {
  color-scheme: light dark;
  word-break: normal;
  overflow-wrap: normal;
  line-break: strict;
  --page: #eef3ff;
  --surface: #ffffff;
  --surface-tint: #f7f9ff;
  --surface-blue: #e6edff;
  --ink: #10131c;
  --muted: #5b667a;
  --subtle: #79859c;
  --line: #d9e2f3;
  --line-strong: #c7d4ec;
  --blue: #3153c7;
  --blue-deep: #243c9d;
  --blue-pale: #e1e9ff;
  --mint: #157b6c;
  --mint-pale: #ddf4ee;
  --nav-bg: rgba(238, 243, 255, 0.9);
  --nav-line: rgba(198, 212, 240, 0.8);
  --nav-ink: #3b4962;
  --button-ink: #ffffff;
  --button-secondary-bg: rgba(255, 255, 255, 0.74);
  --button-secondary-ink: #2d3d58;
  --button-secondary-border: #c5d1e9;
  --footer-bg: #e7eefc;
  --contact-bg: #eaf0ff;
  --contact-ink: #14203a;
  --contact-eyebrow-bg: #dfe7ff;
  --contact-eyebrow-line: #c7d4f3;
  --contact-eyebrow-ink: #3153c7;
  --contact-secondary-line: #9eafcf;
  --contact-secondary-hover: #dce6ff;
  --contact-primary-bg: var(--blue);
  --contact-primary-ink: #ffffff;
  --contact-primary-hover: var(--blue-deep);
  --focus: #3153c7;
  --visual-radius: clamp(1.15rem, 2.4vw, 1.9rem);
  --radius-card: clamp(1rem, 2vw, 1.5rem);
  --leading-display: 1.08;
  --leading-heading: 1.18;
  --leading-hero: 1.8;
  --leading-body: 1.84;
  --leading-detail: 1.62;
  --motion-ease: cubic-bezier(0.22, 0.8, 0.24, 1);
  --shell: min(1180px, calc(100% - 3rem));
  --sans: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--page);
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  text-wrap: pretty;
}

a { color: inherit; }

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

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

h1,
h2,
h3 { text-wrap: balance; }

.copy-unit {
  display: inline-block;
  white-space: nowrap;
}

.page-shell {
  width: var(--shell);
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: max(1rem, env(safe-area-inset-top));
  left: max(1rem, env(safe-area-inset-left));
  padding: 0.66rem 0.9rem;
  border-radius: 0.75rem;
  background: var(--ink);
  color: var(--surface);
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 180ms var(--motion-ease);
}

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

.site-nav {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  min-height: 4.5rem;
  padding: 0.65rem max(1.5rem, env(safe-area-inset-right)) 0.65rem max(1.5rem, env(safe-area-inset-left));
  border-bottom: 1px solid var(--nav-line);
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.52rem;
  min-width: 0;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 760;
  letter-spacing: -0.018em;
  text-decoration: none;
}

.brand-lockup img { flex: 0 0 auto; }

.brand-company,
.brand-product { white-space: nowrap; }

.brand-separator { color: var(--subtle); }

.brand-product {
  color: var(--blue);
  letter-spacing: 0.045em;
}

.brand-product span {
  margin-left: 0.15rem;
  color: var(--ink);
  letter-spacing: -0.025em;
}

.product-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2.4vw, 1.35rem);
  margin-left: auto;
}

.product-nav a {
  color: var(--nav-ink);
  font-size: 0.9rem;
  font-weight: 680;
  text-decoration: none;
  white-space: nowrap;
  transition: color 180ms var(--motion-ease), background 180ms var(--motion-ease);
}

.product-nav a:hover { color: var(--blue); }

.product-nav .nav-cta {
  padding: 0.64rem 0.92rem;
  border-radius: 0.72rem;
  background: var(--ink);
  color: var(--surface);
}

.product-nav .nav-cta:hover { background: var(--blue-deep); }

.menu-toggle {
  display: none;
  margin-left: auto;
  padding: 0.55rem 0.72rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.68rem;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 750;
}

.hero {
  overflow: clip;
  padding: clamp(3.25rem, 7.7vw, 7.4rem) 0 clamp(4.75rem, 8.5vw, 7.8rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6.2rem);
}

.hero-copy { min-width: 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 1.9rem;
  margin: 0 0 0.9rem;
  padding: 0.27rem 0.64rem;
  border: 1px solid #d1dcfb;
  border-radius: 999px;
  background: var(--blue-pale);
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 810;
  letter-spacing: 0.06em;
}

.eyebrow span {
  margin-left: 0.52rem;
  color: var(--nav-ink);
  letter-spacing: -0.01em;
}

.product-support {
  margin-bottom: 0.82rem;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 770;
  letter-spacing: 0.045em;
}

.product-support span { color: var(--subtle); }

h1 {
  max-width: 10em;
  margin-bottom: 1.3rem;
  font-size: clamp(2.15rem, 4.1vw, 3.7rem);
  font-weight: 850;
  letter-spacing: -0.084em;
  line-height: var(--leading-display);
}

.hero-lede {
  max-width: 34rem;
  margin-bottom: 1.75rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.16rem);
  font-weight: 520;
  line-height: var(--leading-hero);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1.12rem;
  border: 1px solid transparent;
  border-radius: 0.82rem;
  font-size: 0.93rem;
  font-weight: 780;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 200ms var(--motion-ease), color 200ms var(--motion-ease), background 200ms var(--motion-ease), border-color 200ms var(--motion-ease);
}

.button-primary {
  background: var(--blue);
  color: var(--button-ink);
}

.button-primary:hover { background: var(--blue-deep); }

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

.button-secondary:hover { border-color: var(--blue); color: var(--blue); }

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.72rem 1.1rem;
  max-width: 33rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.proof-grid li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 0.42rem;
  min-width: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: var(--leading-detail);
}

.proof-grid strong {
  color: var(--ink);
  font-size: 0.84rem;
}

.proof-grid strong::before {
  content: "";
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  margin-right: 0.36rem;
  border-radius: 50%;
  background: var(--mint);
  vertical-align: 0.07em;
}

.hero-visual {
  width: min(27rem, 100%);
  margin: 0 auto;
}

.appstore-visual {
  position: relative;
  isolation: isolate;
  margin: 0;
  transition: transform 280ms var(--motion-ease);
}

.appstore-visual > picture {
  display: block;
  height: 100%;
  overflow: hidden;
  border-radius: var(--visual-radius);
}

.appstore-visual img {
  width: 100%;
  height: 100%;
  transition: transform 360ms var(--motion-ease);
}

.appstore-visual-portrait { aspect-ratio: 5 / 8;
}

.appstore-visual-portrait img { object-fit: contain; }

.appstore-visual-landscape { aspect-ratio: 16 / 10;
}

.appstore-visual-landscape img { object-fit: cover; }

.appstore-visual figcaption {
  margin-top: 0.72rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: var(--leading-detail);
  text-align: center;
}

.section { padding: clamp(4.8rem, 9vw, 8.5rem) 0; }

.section-tint { background: var(--surface-tint); }

.section-white { background: var(--surface); }

.story-grid,
.open-grid {
  display: grid;
  align-items: center;
  gap: clamp(2rem, 6vw, 5.6rem);
}

.subscription-grid { grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr); }

.reimbursement-grid { grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); }

.story-copy { min-width: 0; max-width: 35rem; }

.story-copy h2,
.open-intro h2,
.contact-band h2 {
  margin-bottom: 1.12rem;
  font-size: clamp(2rem, 3.85vw, 3.7rem);
  font-weight: 850;
  letter-spacing: -0.075em;
  line-height: var(--leading-heading);
}

.story-copy > p,
.open-intro > p {
  color: var(--muted);
  font-size: clamp(1rem, 1.45vw, 1.1rem);
  line-height: var(--leading-body);
}

.product-visual { min-width: 0; }

.reimbursement-visual {
  width: min(27rem, 100%);
  justify-self: center;
}

.detail-list {
  display: grid;
  gap: 0;
  margin: 2rem 0 0;
  border-top: 1px solid var(--line);
}

.detail-list div {
  display: grid;
  grid-template-columns: minmax(8.8rem, 0.82fr) minmax(0, 1.18fr);
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.detail-list dt {
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 780;
}

.detail-list dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: var(--leading-detail);
}

.flow-list {
  display: grid;
  gap: 0;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.flow-list li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.78rem;
  padding: 0.94rem 0;
  border-bottom: 1px solid var(--line);
}

.flow-number {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0.08em;
}

.flow-list strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--ink);
  font-size: 0.95rem;
}

.flow-list small {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: var(--leading-detail);
}

.section-open { background: var(--surface-blue); }

.open-grid {
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: clamp(2rem, 4vw, 3.5rem);
}

.open-intro { max-width: 34rem; }

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.82rem;
}

.boundary-grid article {
  min-width: 0;
  padding: clamp(1.1rem, 2.2vw, 1.45rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.64);
}

.boundary-kicker {
  display: block;
  margin-bottom: 1.35rem;
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0.1em;
}

.boundary-grid h3 {
  margin-bottom: 0.62rem;
  color: var(--ink);
  font-size: 1rem;
  letter-spacing: -0.035em;
  line-height: var(--leading-detail);
}

.boundary-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: var(--leading-detail);
}

.contact-band {
  padding: clamp(3.75rem, 8vw, 6.2rem) 0;
  background: var(--contact-bg);
  color: var(--contact-ink);
}

.contact-band-inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}

.contact-band .eyebrow {
  border-color: var(--contact-eyebrow-line);
  background: var(--contact-eyebrow-bg);
  color: var(--contact-eyebrow-ink);
}

.contact-band .eyebrow span { color: currentColor; }

.contact-band h2 { margin-bottom: 0; color: var(--contact-ink); }

.contact-band .button-primary { background: var(--contact-primary-bg); color: var(--contact-primary-ink); }

.contact-band .button-primary:hover { background: var(--contact-primary-hover); }

.contact-band .button-secondary {
  border-color: var(--contact-secondary-line);
  background: transparent;
  color: var(--contact-ink);
}

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

.site-footer {
  padding: 1.8rem 0 max(1.8rem, env(safe-area-inset-bottom));
  background: var(--footer-bg);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.2rem;
}

.footer-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: var(--leading-detail);
}

.footer-inner strong { color: var(--ink); }

.footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  justify-content: flex-end;
}

.footer-actions a {
  color: var(--blue);
  font-size: 0.84rem;
  font-weight: 780;
  text-decoration: none;
  white-space: nowrap;
}

.footer-actions a:hover { text-decoration: underline; text-underline-offset: 0.2em; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

@media (hover: hover) and (pointer: fine) and (prefers-reduced-motion: no-preference) {
  .button:hover { transform: translateY(-2px); }

  .appstore-visual:hover { transform: translateY(-3px); }

  .appstore-visual:hover img { transform: scale(1.012); }

  .boundary-grid article { transition: transform 220ms var(--motion-ease), border-color 220ms var(--motion-ease); }

  .boundary-grid article:hover {
    border-color: var(--blue);
    transform: translateY(-3px);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0a1020;
    --surface: #121a2c;
    --surface-tint: #0e1628;
    --surface-blue: #101a31;
    --ink: #f3f6ff;
    --muted: #bcc6da;
    --subtle: #95a4c0;
    --line: #2b3959;
    --line-strong: #35476d;
    --blue: #9eafff;
    --blue-deep: #c0ceff;
    --blue-pale: #18274a;
    --mint: #7bdbc8;
    --mint-pale: #143d3a;
    --nav-bg: rgba(10, 16, 32, 0.9);
    --nav-line: rgba(183, 202, 255, 0.19);
    --nav-ink: #dce5f8;
    --button-ink: #0c1427;
    --button-secondary-bg: #151f36;
    --button-secondary-ink: #e8edff;
    --button-secondary-border: #465979;
    --footer-bg: #0d1527;
    --contact-bg: #111b33;
    --contact-ink: #f3f6ff;
    --contact-eyebrow-bg: #18294b;
    --contact-eyebrow-line: #3a4d78;
    --contact-eyebrow-ink: #c3d0ff;
    --contact-secondary-line: #536584;
    --contact-secondary-hover: #1b2946;
    --contact-primary-bg: #bfccff;
    --contact-primary-ink: #0a1020;
    --contact-primary-hover: #d5deff;
    --focus: #b4c2ff;
  }

  .eyebrow {
    border-color: #344b79;
    background: #18284a;
    color: #b8c6ff;
  }

  .eyebrow span { color: #dce6fb; }

  .button-primary { background: #bfccff; color: #0a1020; }

  .button-primary:hover { background: #d5deff; }

  .button-secondary:hover { border-color: #aebdff; color: #dbe3ff; }

  .boundary-grid article {
    border-color: #324462;
    background: rgba(18, 27, 47, 0.76);
  }

}

@media (min-width: 1280px) {
  :root { --shell: min(1420px, calc(100% - 6rem)); }

  h1 { font-size: clamp(3rem, 4.1vw, 4.5rem); }

  .hero-visual { width: min(30rem, 100%); }
}

@media (max-width: 920px) {
  .hero-grid,
  .subscription-grid,
  .reimbursement-grid,
  .open-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-copy { max-width: 42rem; }

  .hero-visual { order: 2; }

  .product-visual { width: min(600px, 100%); }

  .reimbursement-visual { width: min(27rem, 100%); }

  .story-copy { max-width: 42rem; }

  .boundary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 46rem;
  }
}

@media (max-width: 760px) {
  :root { --shell: min(100% - 2.5rem, 1180px); }

  .site-nav { flex-wrap: wrap; min-height: 4.15rem; }

  .brand-lockup { gap: 0.42rem; font-size: 0.78rem; }

  .brand-company,
  .brand-separator { display: none; }

  .brand-product { max-width: 12.5rem; overflow: hidden; text-overflow: ellipsis; }

  .js .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }

  .product-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    width: 100%;
    margin: 0;
    border-top: 1px solid var(--line);
  }

  .product-nav a {
    min-height: 2.9rem;
    padding: 0.8rem 0.3rem;
    border-bottom: 1px solid var(--line);
    font-size: 0.86rem;
    text-align: center;
  }

  .product-nav .nav-cta {
    margin: 0.55rem 0.3rem;
    padding: 0.62rem;
    border-bottom: 0;
  }

  .js .product-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    padding: 0 1.25rem 1rem;
    background: var(--page);
    backdrop-filter: none;
  }

  .js .site-nav.is-menu-open .product-nav {
    position: static;
    display: grid;
  }

  .hero { padding-top: clamp(2.9rem, 10vw, 4.5rem); }

  .hero-actions,
  .contact-actions { display: grid; grid-template-columns: minmax(0, 1fr); }

  .button { width: 100%; }

  .proof-grid { gap: 0.68rem 0.85rem; }

  .detail-list div { grid-template-columns: minmax(0, 1fr); gap: 0.28rem; }

  .boundary-grid { grid-template-columns: minmax(0, 1fr); gap: 0.72rem; }

  .boundary-grid article { display: grid; grid-template-columns: 2.2rem minmax(0, 1fr); column-gap: 0.85rem; }

  .boundary-kicker { grid-row: span 2; margin: 0; }

  .boundary-grid h3 { margin: 0 0 0.35rem; }

  .contact-band-inner { display: grid; align-items: start; }

  .footer-inner { grid-template-columns: minmax(0, 1fr); gap: 0.35rem; }
}

@media (max-width: 390px) {
  h1 { font-size: clamp(1.86rem, 9.9vw, 2.2rem); letter-spacing: -0.075em; }

  .proof-grid { grid-template-columns: minmax(0, 1fr); }

  .flow-list li { grid-template-columns: 1.9rem minmax(0, 1fr); }
}

@media (horizontal-viewport-segments: 2) and (min-width: 620px) {
  .site-nav {
    padding-right: max(1.5rem, env(safe-area-inset-right), env(viewport-segment-right 1 0));
    padding-left: max(1.5rem, env(safe-area-inset-left), env(viewport-segment-left 0 0));
  }
}

html.motion-ready .motion-enter {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms var(--motion-ease) var(--motion-delay, 0ms), transform 520ms var(--motion-ease) var(--motion-delay, 0ms);
}

html.motion-ready .motion-enter.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  html.motion-ready .motion-enter {
    opacity: 1;
    transform: none;
  }
}