:root {
  color-scheme: light;
  --paper: #fbf8f4;
  --ink: #281f2b;
  --muted: #625568;
  --plum: #762466;
  --plum-dark: #5c194f;
  --line: #e5dbe2;
  --soft: #f3ebf1;
  --serif: Georgia, "Hiragino Mincho ProN", "Yu Mincho", serif;
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.75 system-ui, -apple-system, "Hiragino Sans", sans-serif;
}
h1, h2, h3, p, figure { margin: 0; }
a { color: inherit; text-underline-offset: .22em; }
a:focus-visible { outline: 2px solid var(--plum); outline-offset: 4px; }
section[id] { scroll-margin-block-start: 24px; }
.wrap { width: min(1176px, calc(100% - 64px)); margin-inline: auto; }

.skip-link {
  position: fixed;
  z-index: 2;
  inset: 12px auto auto 12px;
  padding: 10px 16px;
  background: white;
  transform: translateY(calc(-100% - 20px));
}
.skip-link:focus { transform: none; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner, .footer-inner { display: flex; align-items: center; gap: 20px; min-height: 70px; }
.brand, .header-links a, .language {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
}
.brand { gap: 10px; font-size: 22px; font-weight: 760; letter-spacing: -.035em; }
.brand img { display: block; flex: none; }
.header-links { display: flex; gap: clamp(16px, 3vw, 32px); margin-inline-start: auto; }
.header-links a, .language { font-size: 14px; font-weight: 650; }
.header-links a { color: var(--muted); }
.header-links a:hover { color: var(--plum); }
.language { padding-inline: 14px; border: 1px solid var(--line); border-radius: 24px; }
.language:hover { border-color: var(--plum); color: var(--plum); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.07fr);
  align-items: center;
  gap: clamp(26px, 5vw, 74px);
  padding-block: clamp(48px, 7.6vw, 106px);
}
.launch-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 4px 12px;
  border: 1px solid #e9d7e3;
  border-radius: 20px;
  background: #f7edf3;
  color: var(--plum);
  font-size: 13px;
  font-weight: 700;
}
.launch-status::before { content: ""; flex: none; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
h1, h2 { font-family: var(--serif); font-weight: 600; line-height: 1.24; }
h1 { margin-top: 22px; font-size: clamp(32px, 4.45vw, 64px); letter-spacing: -.045em; }
html[lang="ja"] h1 { font-size: clamp(32px, 4.1vw, 58px); }
h2 { font-size: clamp(26px, 3.15vw, 42px); letter-spacing: -.035em; }
.lead { max-width: 31em; margin-top: 20px; color: var(--muted); font-size: clamp(15px, 1.6vw, 17px); }
.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 48px;
  margin-top: 27px;
  padding: 9px 17px;
  border-radius: 8px;
  background: var(--plum);
  color: white;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.primary-link:hover { background: var(--plum-dark); }
.primary-link span { font-size: 18px; line-height: 1; }
.hero-visual { position: relative; isolation: isolate; padding: 0 14px 14px 0; }
.hero-visual::before {
  position: absolute;
  inset: 18px 0 0 18px;
  z-index: -1;
  border: 1px solid #eadcde;
  border-radius: 22px;
  background: #f0e2e8;
  content: "";
}
.hero-photo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: 55% center;
  border-radius: 20px;
  background: #e8ded9;
}

.workflow {
  padding-block: clamp(40px, 6vw, 76px);
  border-block: 1px solid var(--line);
  background: #f5eff3;
}
.section-label { margin-bottom: 8px; color: var(--plum); font-size: 13px; font-weight: 750; letter-spacing: .04em; }
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 34px);
  margin: clamp(22px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}
.steps li { padding-top: 19px; border-top: 1px solid #d7c6d4; }
.step-number { color: var(--plum); font: 600 24px/1 var(--serif); font-variant-numeric: lining-nums; }
.steps h3 { margin: 8px 0 5px; font-size: 17px; line-height: 1.45; }
.steps p, .section-copy, .contact p { color: var(--muted); }
.steps p { max-width: 27em; font-size: 15px; }

.preview {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
  align-items: center;
  gap: clamp(28px, 5vw, 70px);
  padding-block: clamp(48px, 8vw, 106px);
}
.section-copy { max-width: 28em; margin-top: 16px; }
.feedback-example {
  max-width: 25em;
  margin-top: 23px;
  padding: 14px 17px 15px;
  border-inline-start: 3px solid #c18bb4;
  border-radius: 0 8px 8px 0;
  background: var(--soft);
  font-size: 14px;
}
.feedback-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 5px; color: var(--plum); font-size: 12px; font-weight: 750; }
.timestamp { padding: 0 6px; border: 1px solid #dec9d9; border-radius: 5px; background: #fff9fe; font-variant-numeric: tabular-nums; }
.preview-frame { padding: clamp(5px, 1.2vw, 12px); border: 1px solid var(--line); border-radius: 16px; background: white; box-shadow: 0 15px 35px #3e203812; }
.preview-frame img { display: block; width: 100%; height: auto; border-radius: 9px; }
.app-preview figcaption { margin-top: 10px; color: var(--muted); font-size: 13px; }

.contact {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px 28px;
  margin-bottom: clamp(35px, 6vw, 68px);
  padding: clamp(20px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--soft);
}
.contact h2 { margin-bottom: 7px; font-size: clamp(22px, 2.4vw, 30px); }
.contact a { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--plum-dark); font-weight: 700; overflow-wrap: anywhere; }
.contact a:hover { color: var(--plum); }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer-inner { justify-content: space-between; }
.footer-brand { color: var(--ink); font-size: 16px; font-weight: 750; }

@media (max-width: 760px) {
  .wrap { width: calc(100% - 36px); }
  .header-inner { min-height: 61px; }
  .header-links { display: none; }
  .language { margin-inline-start: auto; }
  .hero, .preview { grid-template-columns: 1fr; }
  .hero { gap: 25px; padding-block: 36px 40px; }
  .hero-photo { aspect-ratio: 3 / 2; }
  .hero-visual { padding: 0 9px 9px 0; }
  .hero-visual::before { inset: 12px 0 0 12px; }
  .steps { grid-template-columns: 1fr; gap: 16px; }
  .steps li { display: grid; grid-template-columns: 35px minmax(0, 1fr); gap: 4px 9px; padding-top: 14px; }
  .steps h3 { margin: 0; }
  .steps p { grid-column: 2; }
  .contact { flex-direction: column; align-items: flex-start; }
  .footer-inner { min-height: 58px; }
}