:root {
  --ink: #14233d;
  --muted: #566479;
  --blue: #2346e8;
  --blue-hover: #1535c0;
  --line: #d7dfe9;
  --pale: #eff3f9;
  --font: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 108px; }
body { margin: 0; color: var(--ink); background: #fff; font: 400 16px/1.9 var(--font); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, figure { margin: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible { outline: 3px solid #bd6700; outline-offset: 5px; }
::selection { color: #14233d; background: #dbe3ff; }
.container { width: min(1280px, calc(100% - 112px)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: 20px; padding: 10px 20px; z-index: 100; color: #fff; background: var(--ink); }
.skip-link:focus { top: 10px; }
#main:focus { outline: none; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: #fff; }
.header-inner { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.wordmark { display: inline-flex; align-items: baseline; gap: 8px; font: 900 35px/1 Arial, sans-serif; letter-spacing: -1.8px; padding-block: 8px; }
.wordmark > span { font-size: 25px; font-weight: 500; letter-spacing: -1.2px; }
.brand-dot { color: var(--blue); font-weight: 900; }
.main-nav { display: flex; align-items: center; gap: 36px; font-size: 14px; font-weight: 700; }
.main-nav a { min-height: 48px; display: inline-flex; align-items: center; gap: 16px; transition: color .18s; }
.main-nav a:hover { color: var(--blue); }
.main-nav a:last-child { margin-left: 8px; padding-left: 30px; border-left: 1px solid var(--line); }
.menu-toggle { display: none; }
.hero { padding-block: 64px 66px; }
.eyebrow { display: flex; align-items: center; gap: 13px; font-size: 14px; font-weight: 700; letter-spacing: .04em; }
.blue-line { display: inline-block; width: 28px; height: 3px; background: var(--blue); }
.hero-grid { display: grid; grid-template-columns: 1.7fr 1fr; gap: 40px; align-items: end; margin-top: 28px; }
h1 { font-size: clamp(38px, 4.45vw, 64px); font-weight: 800; line-height: 1.5; letter-spacing: -.055em; }
h1 > span { display: block; }
.hero-emphasis { color: var(--blue); }
.inline-word { display: inline-block; }
.hero-summary { padding: 0 0 6px 16px; }
.hero-summary > p { color: var(--muted); font-size: 16px; line-height: 1.95; }
.button { display: inline-flex; justify-content: space-between; align-items: center; min-height: 58px; padding: 16px 22px; gap: 32px; border: 1px solid transparent; font-weight: 700; font-size: 15px; line-height: 1.5; border-radius: 3px; transition: background .18s, box-shadow .18s; }
.button > span { font: 400 22px/1 Arial, sans-serif; }
.button-primary { color: #fff; background: var(--blue); }
.button-primary:hover { background: var(--blue-hover); box-shadow: 0 8px 18px #2346e818; }
.hero-summary .button { margin-top: 25px; min-width: 240px; }
.apps-section { padding-bottom: 78px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-block: 22px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-label { display: flex; align-items: center; gap: 20px; }
.section-number { font: 700 13px/1 Arial, sans-serif; color: var(--blue); }
.section-heading h2 { font-size: 23px; font-weight: 700; letter-spacing: -.025em; }
.section-heading > p { color: var(--muted); font-size: 14px; }
.app-feature { display: grid; grid-template-columns: .82fr 1.25fr; grid-template-areas: "intro visual" "actions visual"; column-gap: 54px; row-gap: 26px; align-items: start; padding-block: 44px 42px; border-bottom: 1px solid var(--line); }
.app-feature + .app-feature { margin-top: 8px; }
.app-intro { grid-area: intro; min-width: 0; padding-top: 6px; }
.app-name { display: flex; align-items: center; gap: 15px; }
.app-name img { width: 58px; height: 58px; border-radius: 14px; flex-shrink: 0; }
.app-category { color: var(--muted); font-size: 12px; letter-spacing: .035em; line-height: 1.6; }
.app-name h3 { font-family: Arial, var(--font); font-size: clamp(24px, 2.1vw, 29px); line-height: 1.5; letter-spacing: -.75px; margin-top: 2px; }
.app-pitch { font-size: clamp(25px, 2.25vw, 32px); line-height: 1.65; font-weight: 750; letter-spacing: -.045em; margin-top: 26px; }
.app-pitch > span { display: block; }
.app-description { font-size: 16px; line-height: 1.95; color: var(--muted); margin-top: 15px; max-width: 26em; }
.app-visual { grid-area: visual; min-width: 0; }
.screen-stage { background: var(--pale); padding: 25px 28px 13px; border-radius: 5px; }
.screen-title { color: var(--ink); font-size: 15px; font-weight: 700; margin-bottom: 20px; }
.screen-link { display: block; border: 8px solid #172338; border-radius: 12px; background: #172338; box-shadow: 0 18px 25px -16px #14233d75; transition: box-shadow .2s; }
.screen-link:hover { box-shadow: 0 20px 30px -12px #14233d75; }
.screen-link img { width: 100%; border-radius: 4px; }
figcaption { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; color: var(--muted); font-size: 12px; }
figcaption a { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; color: var(--ink); white-space: nowrap; }
figcaption a:hover { text-decoration: underline; text-underline-offset: 4px; }
.feature-list { display: flex; flex-wrap: wrap; gap: 14px 24px; list-style: none; padding: 18px 0 0; margin: 0; }
.feature-list li { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.feature-list li > span { font: 400 11px/1 Arial, sans-serif; color: var(--muted); }
.app-actions { grid-area: actions; align-self: end; min-width: 0; padding-bottom: 4px; }
.release-status { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #8793a5; }
.app-actions .button { min-width: min(100%, 280px); }
.release-note { margin-top: 12px; color: var(--muted); font-size: 12px; }
.release-note a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: underline; text-underline-offset: 3px; }
.upcoming-note { display: flex; align-items: baseline; gap: 13px; margin-top: 23px; font-size: 14px; color: var(--muted); }
.upcoming-note > span { color: var(--blue); font-size: 21px; }
.about-section { background: var(--ink); color: #fff; padding-block: 70px; }
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 88px; align-items: start; }
.section-kicker { display: flex; align-items: center; gap: 18px; font-size: 13px; letter-spacing: .05em; }
.section-kicker > span { font: 700 12px/1 Arial, sans-serif; color: #8b9ed2; }
.about-section .section-kicker { color: #c1cde1; }
.about-section h2 { font-size: clamp(28px, 2.75vw, 38px); line-height: 1.7; letter-spacing: -.045em; margin-top: 25px; font-weight: 700; }
.about-section h2 > span { display: block; }
.about-copy { padding-top: 4px; color: #d1daea; font-size: 16px; line-height: 2; }
.about-copy > p + p { margin-top: 20px; }
.about-copy .about-signature { margin-top: 28px; font-size: 14px; color: #fff; font-weight: 700; }
.about-signature > span { display: block; color: #bac8de; font-size: 12px; font-weight: 400; margin-top: 3px; }
.support-section { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; padding-block: 80px; align-items: center; }
.support-section .section-kicker { color: var(--muted); }
.support-section .section-kicker > span { color: var(--blue); }
.support-section h2 { font-size: 34px; letter-spacing: -.04em; margin-top: 18px; }
.support-copy > p:last-child { margin-top: 15px; color: var(--muted); max-width: 30em; }
.contact-block { min-width: 0; }
.contact-link { display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); padding-block: 22px; }
.contact-link strong { font-size: 20px; font-weight: 700; }
.contact-address { display: block; color: var(--muted); font: 400 15px/1.8 Arial, sans-serif; margin-top: 9px; overflow-wrap: anywhere; }
.contact-arrow { flex-shrink: 0; display: grid; place-items: center; border-radius: 50%; width: 52px; height: 52px; background: var(--blue); color: #fff; font: 400 25px/1 Arial, sans-serif; transition: background .2s; }
.contact-link:hover .contact-arrow { background: var(--blue-hover); }
.contact-link:hover strong { color: var(--blue); }
.contact-note { color: var(--muted); font-size: 13px; line-height: 1.9; margin-top: 15px; }
.site-footer { border-top: 1px solid var(--line); background: #f7f9fc; padding-top: 43px; }
.footer-top { display: grid; grid-template-columns: 1.1fr 1fr auto; align-items: start; gap: 35px; padding-bottom: 35px; }
.footer-brand-note { font-size: 12px; color: var(--muted); margin-top: 8px; }
.company { font-size: 13px; color: var(--muted); padding-top: 5px; }
.company strong { color: var(--ink); font-size: 14px; font-weight: 700; }
.company p { margin-top: 8px; }
.back-to-top { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; font-size: 12px; min-height: 44px; }
.back-to-top span { font-size: 22px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-block: 16px 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-bottom small { font: 400 11px/1.8 Arial, sans-serif; }
.footer-bottom a { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; }
.footer-bottom a:hover, .back-to-top:hover { color: var(--blue); }
@media (min-width: 1440px) {
  .hero { padding-block: 72px 76px; }
  .hero-grid { margin-top: 30px; }
  .hero-summary { padding-left: 36px; }
}
@media (max-width: 1100px) {
  .container { width: calc(100% - 72px); }
  .hero-grid { grid-template-columns: 1.65fr 1fr; gap: 24px; }
  .hero-summary { padding-left: 0; }
  .hero-summary .button { min-width: 220px; }
  .app-feature { gap: 26px 32px; }
  .app-name { gap: 12px; }
  .app-name img { width: 48px; height: 48px; border-radius: 12px; }
  .screen-stage { padding: 22px 20px 10px; }
  .app-actions .button { min-width: 0; gap: 25px; }
  .feature-list { gap: 12px 18px; }
  .feature-list li { font-size: 12px; }
  .about-grid { gap: 50px; }
  .support-section { gap: 42px; }
}
@media (max-width: 850px) {
  html { scroll-padding-top: 92px; }
  .container { width: calc(100% - 48px); }
  .header-inner { min-height: 76px; }
  .wordmark { font-size: 31px; }
  .wordmark > span { font-size: 23px; }
  .main-nav { gap: 22px; font-size: 13px; }
  .main-nav a:last-child { padding-left: 20px; margin-left: 0; }
  .hero { padding-block: 48px 48px; }
  .hero-grid { grid-template-columns: 1fr; gap: 22px; margin-top: 20px; }
  h1 { font-size: clamp(38px, 6.5vw, 52px); line-height: 1.55; }
  .hero-summary { display: flex; align-items: center; justify-content: space-between; gap: 26px; padding: 0; }
  .hero-summary .button { margin-top: 0; min-width: 240px; }
  .app-feature { grid-template-columns: .9fr 1fr; gap: 24px; }
  .app-pitch { font-size: 24px; }
  .app-name h3 { font-size: 22px; }
  .app-category { font-size: 11px; }
  .screen-stage { padding: 18px 16px 10px; }
  .screen-title { font-size: 13px; margin-bottom: 15px; }
  .screen-link { border-width: 5px; border-radius: 8px; }
  figcaption { flex-wrap: wrap; gap: 0; margin-top: 12px; font-size: 11px; }
  .feature-list { display: grid; gap: 5px; padding-top: 14px; }
  .app-actions .button { font-size: 14px; padding-inline: 17px; gap: 19px; }
  .about-grid { gap: 35px; }
  .about-section h2 { font-size: 28px; }
  .about-copy { font-size: 16px; }
  .support-section { gap: 32px; }
  .support-section h2 { font-size: 28px; }
  .contact-link strong { font-size: 18px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .back-to-top { justify-self: start; }
}
@media (max-width: 620px) {
  html { scroll-padding-top: 88px; }
  .container { width: calc(100% - 40px); }
  .header-inner { min-height: 72px; flex-wrap: wrap; gap: 0; }
  .wordmark { font-size: 30px; }
  .wordmark > span { font-size: 22px; }
  .menu-toggle:not([hidden]) { display: inline-flex; align-items: center; justify-content: flex-end; gap: 12px; min-width: 104px; min-height: 48px; padding: 10px 0 10px 12px; border: 0; color: var(--ink); background: none; cursor: pointer; font-size: 13px; font-weight: 700; }
  .menu-lines { width: 20px; height: 10px; position: relative; border-block: 1.5px solid currentColor; }
  .menu-toggle[aria-expanded="true"] .menu-lines { height: 0; border-bottom: 0; transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-lines::after { content: ""; position: absolute; left: 0; top: -1.5px; width: 20px; border-top: 1.5px solid currentColor; transform: rotate(90deg); }
  .main-nav { width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding-bottom: 14px; }
  .main-nav a { min-height: 52px; border-top: 1px solid var(--line); justify-content: space-between; font-size: 15px; }
  .main-nav a:last-child { border-left: 0; padding-left: 0; }
  .main-nav.js-nav:not(.is-open) { display: none; }
  .hero { padding-block: 35px 39px; }
  .eyebrow { font-size: 12px; gap: 10px; letter-spacing: 0; }
  .blue-line { width: 20px; }
  .hero-grid { margin-top: 21px; gap: 22px; }
  h1 { font-size: clamp(30px, 7.7vw, 47px); letter-spacing: -.06em; line-height: 1.6; }
  .hero-summary { display: block; }
  .hero-summary > p { font-size: 16px; line-height: 1.85; }

  .hero-summary .button { margin-top: 24px; min-width: 230px; }
  .button { font-size: 14px; min-height: 56px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 8px; padding-block: 21px; }
  .section-label { gap: 15px; }
  .section-heading h2 { font-size: 22px; }
  .section-heading > p { font-size: 13px; }
  .app-feature { grid-template-columns: 1fr; grid-template-areas: "intro" "visual" "actions"; gap: 25px; padding-block: 30px; }
  .app-intro { padding-top: 0; }
  .app-name { gap: 13px; }
  .app-name img { width: 54px; height: 54px; border-radius: 13px; }
  .app-name h3 { font-size: 27px; }
  .app-category { font-size: 12px; }
  .app-pitch { font-size: 29px; margin-top: 24px; line-height: 1.65; }
  .app-description { margin-top: 14px; max-width: none; }
  .screen-stage { padding: 19px 15px 7px; }
  .screen-title { font-size: 14px; }
  figcaption { justify-content: space-between; gap: 0 8px; font-size: 11px; }
  .feature-list { display: flex; flex-wrap: wrap; gap: 9px 15px; padding-top: 13px; }
  .feature-list li { font-size: 12px; gap: 6px; }
  .app-actions { padding: 0; }
  .release-status { font-size: 13px; }
  .app-actions .button { width: 100%; font-size: 15px; padding-inline: 21px; }
  .release-note { font-size: 12px; margin-top: 5px; }
  .upcoming-note { font-size: 13px; gap: 10px; margin-top: 19px; line-height: 1.9; }
  .apps-section { padding-bottom: 44px; }
  .about-section { padding-block: 43px; }
  .about-grid { grid-template-columns: 1fr; gap: 26px; }
  .about-section h2 { font-size: 30px; margin-top: 19px; line-height: 1.65; }
  .about-copy { font-size: 16px; padding: 0; }
  .about-copy > p + p { margin-top: 18px; }
  .about-copy .about-signature { margin-top: 24px; }
  .support-section { grid-template-columns: 1fr; gap: 22px; padding-block: 47px; }
  .support-section h2 { font-size: 30px; margin-top: 15px; }
  .support-copy > p:last-child { margin-top: 12px; }
  .contact-link { padding-block: 16px 20px; gap: 12px; }
  .contact-link strong { font-size: 19px; }
  .contact-address { font-size: 14px; }
  .contact-arrow { width: 46px; height: 46px; font-size: 23px; }
  .contact-note { margin-top: 13px; font-size: 12px; }
  .site-footer { padding-top: 30px; }
  .footer-top { grid-template-columns: 1fr; gap: 23px; padding-bottom: 24px; }
  .company { padding: 0; }
  .company p { margin-top: 6px; }
  .footer-bottom { align-items: flex-start; flex-direction: column-reverse; gap: 10px; padding-block: 15px 23px; }
  .footer-bottom a { font-size: 11px; gap: 8px; }
}
@media (max-width: 359px) {
  .container { width: calc(100% - 32px); }
  h1 { font-size: 29px; }
  .eyebrow { font-size: 11px; }
  .app-name h3 { font-size: 23px; }
  .app-name img { width: 48px; height: 48px; }
  .app-pitch { font-size: 25px; }
  .feature-list { gap: 5px 12px; }
  .contact-link strong { font-size: 17px; }
  .contact-address { font-size: 12px; }
}
/* Featured app: the tilted screen from the first LP, adapted to the new hero. */
.hero-grid { grid-template-columns: 1.05fr 1fr; align-items: center; gap: 52px; margin-top: 0; }
.hero-copy { min-width: 0; }
.hero h1 { margin-top: 24px; font-size: clamp(34px, 3.5vw, 51px); line-height: 1.65; }
.hero-summary { display: block; padding: 0; margin-top: 22px; }
.hero-summary .button { margin-top: 26px; }
.hero-visual { position: relative; isolation: isolate; display: flex; flex-direction: column; justify-content: space-between; min-width: 0; padding: 26px 28px 23px; border-radius: 12px; background: #eaf0ff; transition: background .25s ease; }
.visual-grid { position: absolute; inset: 0; z-index: -1; border-radius: inherit; pointer-events: none; background-image: linear-gradient(#a4baf023 1px, transparent 1px), linear-gradient(90deg, #a4baf023 1px, transparent 1px); background-size: 42px 42px; }
.visual-topline { display: flex; align-items: center; justify-content: space-between; gap: 14px; color: var(--blue); font: 700 12px/1.5 Arial, sans-serif; letter-spacing: .1em; }
.visual-topline > span:last-child { font-size: 25px; line-height: 1; }
.visual-word { position: absolute; top: 68px; left: 25px; z-index: -1; pointer-events: none; color: #c6d3f7; font: 900 clamp(56px, 6vw, 84px)/.94 Arial, sans-serif; letter-spacing: -4px; }
.screen-frame { margin: 66px -10px 30px 4px; padding: 7px; background: #172238; border: 1px solid #445369; border-radius: 13px; box-shadow: 0 22px 25px -18px #182341b0; transform: rotate(-5deg); transform-origin: center; transition: transform .4s ease, box-shadow .4s ease; }
.screen-frame img { width: 100%; border-radius: 5px; }
.screen-bar { display: flex; gap: 4px; align-items: center; height: 14px; padding: 0 4px 5px; color: #a9b5c9; }
.screen-bar i { width: 3px; height: 3px; background: #8290a7; border-radius: 50%; }
.screen-bar > span { font: 6px/1 Arial, sans-serif; margin-inline: auto; padding-right: 24px; }
.visual-caption { display: flex; align-items: center; gap: 12px; position: relative; }
.visual-caption > img { flex-shrink: 0; width: 40px; height: 40px; border-radius: 10px; }
.visual-caption > div { min-width: 0; }
.visual-caption strong { display: block; font-size: 14px; line-height: 1.6; }
.visual-caption div > span { display: block; color: #4e6083; font-size: 12px; line-height: 1.7; margin-top: 3px; }
.visual-arrow { margin-left: auto; color: var(--blue); font-size: 23px; flex-shrink: 0; }
.hero-visual:focus-visible { background: #e1e9ff; }
.hero-visual:focus-visible .screen-frame { transform: rotate(-3deg) translateY(-3px); box-shadow: 0 26px 30px -18px #182341b0; }
@media (hover: hover) and (pointer: fine) {
  .hero-visual:hover { background: #e1e9ff; }
  .hero-visual:hover .screen-frame { transform: rotate(-3deg) translateY(-3px); box-shadow: 0 26px 30px -18px #182341b0; }
}
@media (max-width: 1100px) {
  .hero-grid { gap: 32px; }
  .hero h1 { font-size: clamp(30px, 3.5vw, 39px); }
  .hero-visual { padding: 22px; }
  .screen-frame { margin-top: 62px; }
  .visual-word { top: 63px; left: 22px; font-size: 62px; }
  .visual-caption { gap: 9px; }
  .visual-caption div > span { font-size: 11px; }
}
@media (max-width: 850px) {
  .hero-grid { grid-template-columns: 1fr; gap: 38px; }
  .hero h1 { font-size: clamp(36px, 6.5vw, 52px); line-height: 1.55; }
  .hero-summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 20px; }
  .hero-summary .button { margin-top: 0; }
  .hero-visual { width: 100%; max-width: 590px; justify-self: center; padding: 25px; }
  .screen-frame { margin: 64px 3px 33px; }
  .visual-word { font-size: 82px; top: 68px; left: 25px; }
  .visual-caption div > span { font-size: 12px; }
}
@media (max-width: 620px) {
  .hero-grid { gap: 32px; }
  .hero h1 { margin-top: 21px; font-size: clamp(30px, 7.7vw, 47px); line-height: 1.6; }
  .hero-summary { display: block; margin-top: 22px; }
  .hero-summary .button { margin-top: 24px; }
  .hero-visual { padding: 20px 19px; border-radius: 10px; }
  .visual-topline { font-size: 10px; }
  .visual-topline > span:last-child { font-size: 23px; }
  .visual-word { top: 58px; left: 19px; font-size: clamp(44px, 15.5vw, 75px); letter-spacing: -3px; }
  .screen-frame { margin: 52px 0 28px; padding: 5px; border-radius: 10px; }
  .screen-bar { height: 10px; padding-bottom: 4px; }
  .visual-caption { gap: 10px; }
  .visual-caption > img { width: 36px; height: 36px; border-radius: 9px; }
  .visual-caption strong { font-size: 13px; }
  .visual-caption div > span { font-size: 11px; }
  .visual-arrow { font-size: 20px; }
}
@media (max-width: 359px) {
  .hero h1 { font-size: 29px; }
  .hero-visual { padding-inline: 16px; }
  .visual-caption { gap: 8px; }
  .visual-caption div > span { font-size: 10px; }
  .visual-arrow { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-visual .screen-frame, .hero-visual:hover .screen-frame, .hero-visual:focus-visible .screen-frame { transform: rotate(-5deg); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* アプリを使っている人のための操作ガイドへの導線 */
.app-guide-link { display: flex; align-items: center; gap: 14px; width: fit-content; min-height: 44px; margin-top: 10px; color: var(--blue, #2346e8); font-weight: 700; }
