:root {
  color-scheme: light;
  --canvas: #f1f4f2;
  --surface: #fbfcfa;
  --surface-muted: #e6ebe7;
  --surface-blue: #d9f1f4;
  --surface-pink: #efd5e1;
  --ink: #171a19;
  --muted: #58615d;
  --line: #cdd4d0;
  --accent: #19afd0;
  --accent-deep: #087a94;
  --radius: 28px;
  --content: min(1280px, calc(100% - 64px));
  --shadow: 0 24px 70px rgba(19, 50, 48, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
picture { display: contents; }
a { color: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p { margin-top: 0; }

.skip {
  position: absolute;
  inset-inline-start: -999px;
  top: 12px;
  z-index: 10;
  padding: 12px 16px;
  border-radius: 14px;
  background: var(--ink);
  color: var(--surface);
}
.skip:focus { inset-inline-start: 12px; }
.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;
}
:focus-visible { outline: 3px solid var(--accent-deep); outline-offset: 4px; }

.site-nav {
  width: var(--content);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  flex: 0 0 auto;
  direction: ltr;
  unicode-bidi: isolate;
  font-size: 25px;
  font-weight: 800;
  letter-spacing: -.075em;
  font-family: "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
  text-decoration: none;
}
.nav-cluster, .nav-links, .nav-actions { display: flex; align-items: center; }
.nav-cluster { gap: 26px; }
.nav-links { gap: 24px; font-size: 14px; font-weight: 650; }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--accent-deep); }
.nav-actions { gap: 10px; }
.locale-picker { position: relative; }
.locale-picker select {
  min-height: 44px;
  max-width: 172px;
  padding: 0 34px 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: 700 13px/1 "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
  cursor: pointer;
}
[dir="rtl"] .locale-picker select { padding: 0 14px 0 34px; }

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 23px;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: var(--surface);
  font: 750 14px/1 "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 180ms ease, background-color 180ms ease;
}
.button:hover { transform: translateY(-2px); background: var(--accent-deep); }
.button:active { transform: translateY(1px) scale(.985); }
.nav-cta { min-height: 42px; padding-inline: 18px; font-size: 13px; }

main { overflow: clip; }
.hero {
  width: var(--content);
  height: clamp(680px, calc(100svh - 72px), 740px);
  margin: 0 auto;
  padding: 28px 0 42px;
  display: grid;
  grid-template-columns: minmax(0, 52fr) minmax(420px, 48fr);
  gap: clamp(36px, 6vw, 84px);
  align-items: center;
}
.hero-copy { max-width: 660px; padding-bottom: 12px; }
h1 {
  max-width: 100%;
  margin-bottom: 26px;
  font-size: clamp(60px, 5.3vw, 76px);
  font-weight: 650;
  letter-spacing: -.073em;
  line-height: .96;
}
.hero-copy > p {
  max-width: 49ch;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(18px, 1.45vw, 21px);
  line-height: 1.48;
}
.hero-visual {
  height: 100%;
  max-height: 670px;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--accent);
  box-shadow: var(--shadow);
}
.hero-visual img {
  position: absolute;
  inset: 26px 52px;
  width: calc(100% - 104px);
  height: calc(100% - 52px);
  max-width: none;
  object-fit: contain;
  filter: drop-shadow(0 26px 36px rgba(15, 45, 48, .22));
}

.product-showcase { padding: 64px 0; background: var(--surface); }
.showcase-wrap {
  width: min(1120px, var(--content));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  align-items: stretch;
}
.proof { min-width: 0; overflow: hidden; border-radius: var(--radius); }
.proof-primary, .proof-secondary {
  height: 540px;
  display: grid;
  grid-template-columns: minmax(300px, .95fr) minmax(300px, 1.05fr);
  grid-template-rows: minmax(0, 1fr);
}
.proof-primary { background: var(--surface-blue); }
.proof-secondary { background: var(--surface-pink); }
.proof-copy {
  padding: clamp(38px, 4vw, 62px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.proof-copy h2, .proof-copy h3 {
  margin-bottom: 18px;
  font-size: clamp(34px, 3.6vw, 54px);
  font-weight: 620;
  letter-spacing: -.058em;
  line-height: 1;
}
.proof-copy p {
  max-width: 36ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.52;
}
.proof-media { position: relative; display: grid; place-items: center; overflow: hidden; }
.proof-media img {
  position: absolute;
  inset: 16px 24px;
  width: calc(100% - 48px);
  height: calc(100% - 32px);
  max-width: none;
  object-fit: contain;
  filter: drop-shadow(0 22px 34px rgba(21, 43, 43, .18));
}
.proof-secondary .proof-copy { padding: clamp(38px, 4vw, 62px); justify-content: center; }
.proof-secondary .proof-copy h3 { max-width: 11ch; }
.proof-secondary .proof-copy p { max-width: 38ch; }

.capability-band {
  width: var(--content);
  margin: 0 auto;
  padding: 82px 0 86px;
  display: grid;
  grid-template-columns: minmax(260px, .72fr) minmax(0, 1.28fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: start;
}
.capability-band h2 {
  max-width: 11ch;
  margin-bottom: 0;
  font-size: clamp(42px, 4.5vw, 64px);
  font-weight: 620;
  letter-spacing: -.064em;
  line-height: 1;
}
.capability-list {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 38px;
  list-style: none;
  border-top: 1px solid var(--line);
}
.capability-list li {
  min-height: 88px;
  padding: 22px 0;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.35;
}
.capability-list li:last-child { grid-column: 1 / -1; }

.closing-section {
  width: var(--content);
  min-height: 450px;
  margin: 0 auto 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr);
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.trust-copy, .conversion-copy {
  padding: clamp(46px, 5vw, 68px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.trust-copy { background: var(--surface); }
.conversion-copy { background: var(--accent); }
.trust-copy h2, .conversion-copy h2 {
  margin-bottom: 22px;
  font-size: clamp(42px, 4.7vw, 68px);
  font-weight: 620;
  letter-spacing: -.066em;
  line-height: .98;
}
.trust-copy h2, .conversion-copy h2 { max-width: 11ch; }
.trust-copy p {
  max-width: 54ch;
  margin-bottom: 26px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.56;
}
.privacy-links { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; font-weight: 750; }
.privacy-links a { text-underline-offset: 4px; }
.conversion-copy .button { align-self: flex-start; }

footer {
  width: var(--content);
  margin: 0 auto;
  padding: 0 0 34px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}
footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
footer a { text-underline-offset: 4px; }

[dir="rtl"] h1,
[dir="rtl"] .proof-copy h2,
[dir="rtl"] .proof-copy h3,
[dir="rtl"] .capability-band h2,
[dir="rtl"] .trust-copy h2,
[dir="rtl"] .conversion-copy h2 { letter-spacing: 0; }
[lang="ja"] h1, [lang="ko"] h1, [lang="zh-Hans"] h1 { letter-spacing: -.035em; line-height: 1.08; }
[lang="ja"] .proof-copy h2, [lang="ja"] .proof-copy h3,
[lang="ko"] .proof-copy h2, [lang="ko"] .proof-copy h3,
[lang="zh-Hans"] .proof-copy h2, [lang="zh-Hans"] .proof-copy h3 { letter-spacing: -.025em; line-height: 1.12; }

@media (max-width: 1120px) {
  :root { --content: min(100% - 40px, 1040px); }
  .nav-links { display: none; }
  .hero { grid-template-columns: minmax(0, 1fr) minmax(380px, .82fr); gap: 38px; }
  h1 { font-size: clamp(54px, 6.4vw, 72px); }
  .proof-primary, .proof-secondary { grid-template-columns: minmax(280px, .95fr) minmax(260px, 1.05fr); }
  .proof-copy { padding: 40px; }
}

@media (max-width: 900px) {
  .site-nav { min-height: 70px; }
  .locale-picker select { max-width: 138px; }
  .hero {
    height: auto;
    min-height: 650px;
    padding: 48px 0 62px;
    grid-template-columns: minmax(0, 1fr) minmax(320px, .8fr);
  }
  .hero-visual { height: 570px; }
  .proof-primary, .proof-secondary { height: 520px; grid-template-columns: minmax(260px, .95fr) minmax(260px, 1.05fr); }
  .proof-primary .proof-copy, .proof-secondary .proof-copy { padding: 34px; }
  .capability-band { grid-template-columns: 1fr; gap: 40px; }
  .capability-band h2 { max-width: 13ch; }
  .closing-section { grid-template-columns: 1.05fr .95fr; }
}

@media (max-width: 767px) {
  :root { --content: calc(100% - 32px); --radius: 22px; }
  .site-nav { min-height: 68px; gap: 12px; }
  .brand { font-size: 23px; }
  .nav-cluster { gap: 8px; }
  .nav-actions { gap: 6px; }
  .locale-picker select { width: 48px; max-width: 48px; padding-inline: 11px; color: transparent; }
  .locale-picker::after {
    content: "文";
    pointer-events: none;
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: var(--ink);
    font-size: 15px;
    font-weight: 800;
  }
  .nav-cta { min-height: 40px; padding-inline: 15px; font-size: 12px; }
  .hero { min-height: 0; padding: 38px 0 56px; grid-template-columns: 1fr; gap: 42px; }
  .hero-copy { padding: 0; text-align: center; }
  h1 { max-width: 12ch; margin: 0 auto 22px; font-size: clamp(44px, 12.6vw, 62px); }
  :where([lang="ja"], [lang="ko"], [lang="zh-Hans"]) h1 {
    max-width: 15ch;
    font-size: clamp(38px, 10.8vw, 48px);
    line-height: 1.1;
    line-break: strict;
  }
  .hero-copy > p { margin: 0 auto 28px; font-size: 17px; }
  .hero-visual { height: min(540px, 132vw); }
  .hero-visual img { inset: 22px 34px; width: calc(100% - 68px); height: calc(100% - 44px); }
  .product-showcase { padding: 58px 0; }
  .showcase-wrap { gap: 28px; }
  .proof-primary, .proof-secondary { height: 760px; grid-template-columns: 1fr; grid-template-rows: 290px 470px; }
  .proof-copy, .proof-primary .proof-copy, .proof-secondary .proof-copy { padding: 36px 28px 18px; }
  .proof-copy h2, .proof-copy h3, .proof-secondary .proof-copy h3 { max-width: 13ch; font-size: 40px; }
  .proof-primary .proof-media img, .proof-secondary .proof-media img { inset: 16px 28px; width: calc(100% - 56px); height: calc(100% - 32px); }
  .capability-band { padding: 60px 0 64px; gap: 34px; }
  .capability-band h2 { font-size: 46px; }
  .capability-list { grid-template-columns: 1fr; }
  .capability-list li { min-height: 72px; padding: 18px 0; }
  .capability-list li:last-child { grid-column: auto; }
  .closing-section { min-height: 0; margin-bottom: 48px; grid-template-columns: 1fr; }
  .trust-copy, .conversion-copy { padding: 48px 28px; }
  .trust-copy h2, .conversion-copy h2 { font-size: 48px; }
  .conversion-copy .button { width: 100%; }
  footer { padding-bottom: 28px; align-items: flex-start; flex-direction: column; }
}

@media (max-width: 390px) {
  :root { --content: calc(100% - 24px); --radius: 20px; }
  .site-nav { min-height: 64px; }
  .nav-cta { padding-inline: 13px; font-size: 11px; }
  .hero { padding-top: 30px; }
  h1 { font-size: clamp(41px, 12.4vw, 50px); }
  :where([lang="ja"], [lang="ko"], [lang="zh-Hans"]) h1 { font-size: clamp(36px, 10.4vw, 42px); }
  .hero-visual { height: 470px; }
  .proof-primary, .proof-secondary { height: 780px; grid-template-rows: 350px 430px; }
  .proof-copy h2, .proof-copy h3, .proof-secondary .proof-copy h3 { font-size: 37px; }
  .capability-band h2 { font-size: 42px; }
  .trust-copy h2, .conversion-copy h2 { font-size: 43px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}