:root {
  color-scheme: light;
  --mint: #2ab58e;
  --mint-dark: #18795e;
  --mint-bg: #def7eb;
  --mint-light: #f2fbf7;
  --ink: #253b33;
  --ink-soft: #52695e;
  --line: #d6e8de;
  --orange: #f5a623;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--mint-light); color: var(--ink); font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif; font-size: 1rem; line-height: 1.9; -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-weight: 700; line-height: 1.55; overflow-wrap: anywhere; }
a { color: var(--mint-dark); text-underline-offset: 4px; }
img { display: block; max-width: 100%; height: auto; }
a, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--mint-dark); outline-offset: 5px; border-radius: 4px; }
.wrap { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; top: -100px; left: 16px; z-index: 30; padding: 10px 20px; background: white; }
.skip-link:focus { top: 12px; }
header { position: sticky; top: 0; z-index: 20; background: rgba(242,251,247,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.nav { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 1.0625rem; font-weight: 700; text-decoration: none; color: var(--ink); flex-shrink: 0; }
.brand img { border-radius: 9px; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { padding-block: 12px; font-size: .875rem; text-decoration: none; color: var(--ink-soft); }
.nav-links a:hover { color: var(--mint-dark); text-decoration: underline; }
.nav-cta { font-size: .875rem; font-weight: 700; text-decoration: none; border: 1px solid #8bc6ae; border-radius: 999px; padding: 9px 18px; white-space: nowrap; }
.nav-cta:hover { background: var(--mint-bg); }
section { padding-block: 100px; }
.eyebrow { color: var(--mint-dark); font-size: .875rem; font-weight: 700; letter-spacing: .08em; margin-bottom: 16px; }
.hero { padding: 76px 0 54px; background: linear-gradient(135deg, #e5f8ee 0%, #d7f3e5 62%, #c8ecdb 100%); }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 36px; }
.hero-text { min-width: 0; }
h1 { font-size: clamp(1.9rem, 3.25vw, 2.85rem); line-height: 1.6; letter-spacing: -.045em; }
h1 span { color: var(--mint-dark); }
.lead { color: var(--ink-soft); margin-top: 24px; font-size: 1rem; line-height: 2; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; padding: 13px 22px; border-radius: 12px; background: var(--mint-dark); color: white; font-size: .9375rem; font-weight: 700; text-decoration: none; box-shadow: 0 6px 16px #18795e16; transition: background .15s, transform .15s; }
.button:hover { background: #126149; transform: translateY(-2px); }
.download-button { background: var(--ink); }
.download-button:hover { background: #16271f; }
.download-button small { display: block; font-size: .8125rem; font-weight: 400; line-height: 1.5; margin-bottom: 2px; color: #deeee5; }
.button-secondary { background: transparent; color: var(--mint-dark); border: 1px solid #8bc6ae; box-shadow: none; }
.button-secondary:hover { background: #eaf9f1; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 4px 14px; list-style: none; padding: 0; margin: 22px 0 0; color: var(--ink-soft); font-size: .875rem; }
.hero-meta li + li { border-left: 1px solid #accfbb; padding-left: 14px; }
.hero-visual { min-width: 0; }
.hero-devices { display: flex; align-items: center; gap: 16px; padding-block: 10px 22px; }
.device { border: 6px solid var(--ink); background: var(--mint-light); box-shadow: 0 22px 44px #253b3326; }
.hero-phone { width: calc(43% - 8px); border-radius: 29px; }
.hero-tablet { width: calc(57% - 8px); border-radius: 19px; margin-top: 78px; }
figcaption { font-size: .8125rem; color: var(--ink-soft); text-align: center; margin-top: 18px; }
.section-heading { text-align: center; margin-bottom: 44px; }
.section-heading h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); letter-spacing: -.025em; }
.section-heading > p:last-child:not(.eyebrow) { margin-top: 16px; color: var(--ink-soft); }
.mobile-break { display: none; }
.features { background: white; padding-block: 80px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--mint-light); border: 1px solid var(--line); border-radius: 22px; padding: 28px; }
.card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.card-number { font-size: 1.5rem; font-weight: 700; color: #7eaa95; letter-spacing: .04em; }
.icon { width: 48px; height: 48px; flex-shrink: 0; border-radius: 14px; background: var(--mint-bg); display: grid; place-items: center; color: var(--mint-dark); }
.icon svg { width: 26px; height: 26px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.feature-card:nth-child(2) .icon { background: #fff0d6; color: #976018; }
.feature-card h3, .support-card h3 { font-size: 1.125rem; margin-bottom: 12px; }
.feature-card p, .support-card p { color: var(--ink-soft); }
.showcase { padding-bottom: 80px; }
.showcase > .wrap > .section-heading { margin-bottom: 64px; }
.showcase-item { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; margin-bottom: 80px; }
.showcase-item.reverse .showcase-visual { order: 2; }
.showcase-visual { padding: 36px 24px 24px; background: #e1f3e9; border-radius: 30px; min-width: 0; }
.showcase-visual.tone-1 { background: #edf2e8; }
.phone { width: 250px; border-radius: 32px; margin-inline: auto; }
.tag { display: inline-block; color: var(--mint-dark); font-size: .875rem; font-weight: 700; padding: 4px 14px; border: 1px solid #b4dcca; border-radius: 999px; margin-bottom: 18px; }
.showcase-text { min-width: 0; }
.showcase-text h3 { font-size: clamp(1.4rem, 2.4vw, 1.875rem); margin-bottom: 22px; }
.showcase-text > p { color: var(--ink-soft); }
.check-list { list-style: none; padding: 0; margin: 22px 0; }
.check-list li { position: relative; padding-left: 27px; margin-bottom: 10px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--mint-dark); font-weight: 700; }
.showcase-text .small-note { font-size: .875rem; padding-top: 18px; margin-top: 22px; border-top: 1px solid var(--line); }
.ipad-feature { border-radius: 30px; background: var(--mint-bg); padding: 48px 64px; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 70px; }
.ipad-feature figure { min-width: 0; }
.tablet { width: 340px; border-radius: 20px; margin-inline: auto; }
.support-grid { margin-top: 48px; display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.support-card { display: flex; gap: 18px; padding-top: 28px; border-top: 1px solid var(--line); }
.rolling { background: white; }
.rolling-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
.rolling-illust img { border-radius: 24px; }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: steps; }
.steps li { display: flex; gap: 20px; padding-block: 24px; border-bottom: 1px solid var(--line); counter-increment: steps; }
.steps li:first-child { padding-top: 0; }
.steps li:last-child { border-bottom: 0; padding-bottom: 0; }
.steps li::before { content: "0" counter(steps); display: grid; place-items: center; width: 42px; height: 42px; flex-shrink: 0; background: var(--mint-bg); color: var(--mint-dark); border-radius: 50%; font-weight: 700; }
.steps h3 { font-size: 1.125rem; margin-bottom: 8px; }
.steps p { color: var(--ink-soft); }
.faq-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 64px; }
.faq-layout .section-heading { text-align: left; }
.faq-list { min-width: 0; }
details { border-bottom: 1px solid var(--line); }
details:first-child { border-top: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 0; font-weight: 700; line-height: 1.7; }
summary::-webkit-details-marker { display: none; }
summary:hover { color: var(--mint-dark); }
.faq-toggle { position: relative; flex: 0 0 20px; height: 20px; }
.faq-toggle::before, .faq-toggle::after { content: ""; position: absolute; background: var(--mint-dark); inset: 9px 3px; }
.faq-toggle::after { transform: rotate(90deg); }
details[open] .faq-toggle::after { transform: rotate(0); }
details > p { color: var(--ink-soft); margin: 0 28px 24px 0; }
.cta { background: linear-gradient(130deg, #218966, #187356); color: white; text-align: center; padding-block: 80px; }
.cta-icon { margin: 0 auto 20px; border-radius: 15px; }
.cta .eyebrow { color: #d4f4e5; margin-bottom: 12px; }
.cta h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); margin-bottom: 18px; }
.cta > .wrap > p:not(.eyebrow) { color: #e4f6ee; }
.cta .download-button { margin: 28px auto 20px; }
.store-note { font-size: .875rem; }
footer { padding-block: 36px; background: white; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer nav a { font-size: .875rem; color: var(--ink-soft); }
footer p { color: var(--ink-soft); font-size: .8125rem; text-align: right; margin-top: 14px; }
@media (max-width: 1050px) {
  .nav-links { gap: 16px; }
  .nav-links a[href="#rolling"] { display: none; }
  .hero-inner { gap: 24px; }
  .hero-actions { gap: 12px; }
  .hero-phone { border-width: 5px; border-radius: 24px; }
  .hero-tablet { border-width: 5px; border-radius: 16px; }
  .feature-card { padding: 22px; }
  .showcase-item { gap: 48px; }
  .ipad-feature { padding: 40px; gap: 48px; }
  .faq-layout { gap: 36px; grid-template-columns: 1fr 1.8fr; }
}
@media (max-width: 800px) {
  .wrap { width: calc(100% - 40px); }
  section { padding-block: 72px; }
  .nav { min-height: 68px; gap: 12px; }
  .nav-links { display: none; }
  .hero { padding-block: 48px 36px; }
  .hero-inner { grid-template-columns: 1fr; gap: 34px; }
  .hero-text { text-align: center; }
  h1 { font-size: clamp(1.85rem, 5.6vw, 2.8rem); }
  .hero-actions, .hero-meta { justify-content: center; }
  .hero-visual { width: min(510px, 100%); margin-inline: auto; }
  .hero-tablet { margin-top: 48px; }
  .feature-grid { gap: 14px; }
  .feature-card { padding: 20px 16px; }
  .feature-card h3 { font-size: 1rem; }
  .showcase-item { gap: 28px; }
  .showcase-visual { padding: 28px 20px 20px; }
  .showcase-text h3 { font-size: 1.375rem; }
  .ipad-feature { gap: 32px; padding: 32px; }
  .support-grid { grid-template-columns: 1fr; gap: 24px; }
  .rolling-layout { grid-template-columns: 1fr; gap: 36px; }
  .rolling-illust { max-width: 480px; margin-inline: auto; }
  .faq-layout { grid-template-columns: 1fr; gap: 0; }
  .faq-layout .section-heading { text-align: center; margin-bottom: 28px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
  footer p { text-align: left; }
}
@media (max-width: 600px) {
  h1 { font-size: clamp(1.6rem, 7.2vw, 2.15rem); }
  .nav-cta { padding: 8px 12px; }
  .brand { font-size: 1rem; gap: 8px; }
  .brand img { width: 30px; height: 30px; }
  .eyebrow { font-size: .875rem; letter-spacing: .03em; }
  .lead { font-size: 1rem; margin-top: 20px; }
  .hero-actions { flex-direction: column; gap: 12px; margin-top: 24px; }
  .hero-meta { gap: 4px 8px; font-size: .8125rem; }
  .hero-meta li + li { padding-left: 8px; }
  .hero-devices { gap: 12px; }
  .hero-phone { width: calc(43% - 6px); border-width: 4px; border-radius: 21px; }
  .hero-tablet { width: calc(57% - 6px); border-width: 4px; border-radius: 13px; }
  .mobile-break { display: block; }
  .section-heading { margin-bottom: 32px; }
  .features { padding-block: 60px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 24px; }
  .card-top { margin-bottom: 14px; }
  .feature-card h3 { font-size: 1.125rem; }
  .showcase > .wrap > .section-heading { margin-bottom: 40px; }
  .showcase-item { grid-template-columns: 1fr; gap: 28px; margin-bottom: 60px; }
  .showcase-item .showcase-text { grid-row: 1; }
  .showcase-item.reverse .showcase-visual { order: initial; }
  .showcase-text h3 { font-size: 1.5rem; margin-bottom: 16px; }
  .showcase-visual { border-radius: 24px; }
  .phone { width: 240px; }
  .tag { margin-bottom: 14px; }
  .ipad-feature { grid-template-columns: 1fr; padding: 28px 22px; gap: 28px; border-radius: 24px; }
  .tablet { width: 100%; max-width: 340px; }
  .support-card { gap: 14px; }
  .support-card .icon { width: 40px; height: 40px; border-radius: 12px; }
  .support-card h3 { font-size: 1.0625rem; }
  .rolling-layout { gap: 32px; }
  .steps li { gap: 16px; }
  .cta { padding-block: 60px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
  .button:hover { transform: none; }
}