:root {
  --bg: #f7fbff;
  --sky: #eaf3fc;
  --sky-strong: #dcebfa;
  --line: #c7def3;
  --navy: #1e3a6e;
  --navy-dark: #102748;
  --text: #3d5573;
  --muted: #71859d;
  --blue: #2e6fd6;
  --blue-dark: #1d5bc4;
  --green: #16864b;
  --white: #fff;
  font-family: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", "Yu Gothic UI", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
html, body { max-width: 100%; overflow-x: hidden; }
body { margin: 0; color: var(--text); background: var(--bg); font-weight: 500; line-height: 1.75; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 200; padding: 9px 13px; color: var(--navy); background: #fff; border: 1px solid var(--line); border-radius: 6px; opacity: 0; pointer-events: none; font-weight: 900; }
.skip-link:focus { top: 12px; opacity: 1; pointer-events: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 16px;
  background: rgba(247, 251, 255, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.brand { display: inline-flex; align-items: center; gap: 9px; min-width: 0; color: var(--navy); }
.brand img { width: 34px; height: 34px; border-radius: 7px; object-fit: cover; }
.brand span { display: flex; align-items: baseline; gap: 6px; white-space: nowrap; }
.brand strong { font-size: 16px; line-height: 1; font-weight: 900; }
.brand small { color: var(--muted); font-size: 8px; line-height: 1; font-weight: 900; }
.site-header nav a { display: inline-flex; align-items: center; min-height: 38px; padding: 0 12px; color: var(--navy); border: 1px solid var(--line); border-radius: 6px; background: #fff; font-size: 11px; font-weight: 900; }
.site-header nav a:hover, .site-header nav a:focus-visible { color: #fff; background: var(--blue); border-color: var(--blue); }

.hero { background: var(--sky); border-bottom: 1px solid var(--line); }
.hero-shell { width: min(100%, 1080px); min-height: 410px; margin: 0 auto; padding: 46px 18px 40px; display: grid; grid-template-columns: minmax(0, 1fr) 96px; gap: 18px; align-items: center; }
.hero-copy { min-width: 0; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 7px 10px; }
.eyebrow, .section-label, .mini-label, .development-label { margin: 0; color: var(--blue); font-size: 10px; line-height: 1.4; font-weight: 900; }
.beta-flag { display: inline-flex; align-items: center; gap: 5px; margin: 0; padding: 3px 7px 3px 4px; color: #fff; background: #df3557; border-radius: 999px; font-size: 9px; line-height: 1; font-weight: 900; }
.beta-flag span { width: 18px; height: 18px; display: grid; place-items: center; color: #df3557; background: #fff; border-radius: 50%; font-size: 11px; }
.hero h1 { margin: 8px 0 0; color: var(--navy); font-size: 42px; line-height: .98; font-weight: 900; overflow-wrap: anywhere; }
.hero-statement { margin: 19px 0 0; color: var(--navy); font-size: 21px; line-height: 1.35; font-weight: 900; }
.hero-lead { margin: 9px 0 0; font-size: 13px; line-height: 1.8; }
.hero-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; margin-top: 20px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 45px; padding: 0 15px; border-radius: 6px; font-size: 12px; font-weight: 900; }
.button-primary { min-width: 181px; color: #fff; background: var(--blue); }
.button-primary:hover, .button-primary:focus-visible { background: var(--blue-dark); }
.quiet-link { color: var(--navy); border-bottom: 1px solid var(--navy); font-size: 11px; font-weight: 900; }
.quiet-link:hover, .quiet-link:focus-visible { color: var(--blue); border-color: var(--blue); }
.hero-device { width: 96px; margin: 0; justify-self: end; text-align: center; }
.hero-device img { width: 96px; aspect-ratio: 600 / 1299; object-fit: cover; object-position: top; border: 4px solid var(--navy-dark); border-radius: 8px; box-shadow: 0 12px 28px rgba(30, 58, 110, .16); }
.hero-device figcaption { margin-top: 7px; color: var(--navy); font-size: 8px; line-height: 1.4; font-weight: 900; }
.beta-promo { grid-column: 1 / -1; display: grid; gap: 8px; margin-top: 7px; padding: 14px 0; color: var(--navy); border-top: 1px solid #a8c9e9; border-bottom: 1px solid #a8c9e9; }
.beta-promo div { display: flex; flex-wrap: wrap; align-items: baseline; gap: 3px 10px; }
.beta-promo strong { color: #df3557; font-size: 11px; line-height: 1.5; font-weight: 900; }
.beta-promo b { font-size: 16px; line-height: 1.45; font-weight: 900; }
.beta-promo p { margin: 0; font-size: 11px; line-height: 1.65; }
.beta-promo small { display: block; margin-top: 2px; color: var(--muted); font-size: 10px; line-height: 1.6; font-weight: 700; }

.section-shell { width: min(100%, 1080px); margin: 0 auto; padding: 42px 18px; }
.chooser { background: #fff; border-bottom: 1px solid var(--line); }
.chooser h2 { margin: 5px 0 0; color: var(--navy); font-size: 27px; line-height: 1.35; font-weight: 900; }
.choice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 24px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.choice-grid a { min-height: 88px; display: grid; align-content: center; gap: 1px; padding: 11px 12px; background: #fff; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.choice-grid a:hover, .choice-grid a:focus-visible { background: var(--sky); }
.choice-grid span { color: var(--blue); font-size: 9px; font-weight: 900; }
.choice-grid strong { color: var(--navy); font-size: 13px; font-weight: 900; }
.choice-grid small { color: var(--muted); font-size: 10px; font-weight: 700; }

.product-band { background: #fff; border-bottom: 1px solid var(--line); }
.product-band-tint, .product-band-main { background: var(--bg); }
.product-layout { width: min(100%, 1080px); margin: 0 auto; padding: 42px 18px; display: grid; grid-template-columns: minmax(0, 1fr) 96px; gap: 20px; align-items: start; }
.product-copy { min-width: 0; }
.product-kicker { display: flex; align-items: center; gap: 8px; min-height: 24px; }
.product-kicker span { color: var(--blue); font-size: 9px; font-weight: 900; }
.product-kicker b { display: inline-flex; align-items: center; min-height: 22px; padding: 0 7px; color: var(--green); background: #eaf8f0; border: 1px solid #bfe7cf; border-radius: 999px; font-size: 9px; font-weight: 900; }
.product-band-main .product-kicker b { color: #fff; background: var(--blue); border-color: var(--blue); }
.product-copy h2 { margin: 7px 0 0; color: var(--navy); font-size: 28px; line-height: 1.2; font-weight: 900; overflow-wrap: anywhere; }
.product-tagline { margin: 7px 0 0; color: var(--navy); font-size: 15px; line-height: 1.55; font-weight: 900; }
.mini-label { margin-top: 21px; }
.product-overview { max-width: 720px; margin: 5px 0 0; font-size: 13px; line-height: 1.8; }
.use-list { max-width: 720px; display: grid; gap: 5px; margin: 7px 0 0; padding: 0; list-style: none; }
.use-list li { position: relative; padding-left: 15px; color: var(--text); font-size: 13px; line-height: 1.65; }
.use-list li::before { content: ""; position: absolute; left: 1px; top: .7em; width: 5px; height: 5px; background: var(--blue); border-radius: 50%; }
.product-link { width: fit-content; min-height: 44px; display: inline-flex; align-items: center; justify-content: space-between; gap: 22px; margin-top: 22px; padding: 0 13px; color: var(--navy); background: #fff; border: 1px solid var(--navy); border-radius: 6px; font-size: 11px; font-weight: 900; }
.product-link:hover, .product-link:focus-visible { color: #fff; background: var(--blue); border-color: var(--blue); }
.product-visual { width: 96px; margin: 33px 0 0; justify-self: end; overflow: hidden; background: var(--sky-strong); border: 1px solid var(--line); border-radius: 8px; }
.product-visual img { width: 100%; height: 100%; object-fit: cover; }
.cotoa-slider { width: 96px; margin: 33px 0 0; justify-self: end; }
.slider-viewport { width: 100%; aspect-ratio: 780 / 1688; overflow: hidden; background: var(--navy-dark); border: 4px solid var(--navy-dark); border-radius: 8px; box-shadow: 0 10px 22px rgba(30, 58, 110, .14); }
.slider-slide { width: 100%; height: 100%; margin: 0; }
.slider-slide img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.slider-controls { display: grid; grid-template-columns: 27px minmax(0, 1fr) 27px; gap: 4px; align-items: center; margin-top: 7px; }
.slider-button { width: 27px; height: 27px; display: grid; place-items: center; padding: 0; color: var(--navy); background: #fff; border: 1px solid var(--line); border-radius: 50%; cursor: pointer; font: inherit; font-size: 12px; line-height: 1; font-weight: 900; }
.slider-button:hover, .slider-button:focus-visible { color: #fff; background: var(--blue); border-color: var(--blue); }
.slider-count { color: var(--muted); font-size: 8px; line-height: 1; text-align: center; font-weight: 700; }
.slider-count b { color: var(--navy); font-size: 10px; }
.slider-label, .screen-note { margin: 5px 0 0; text-align: center; font-size: 8px; line-height: 1.4; font-weight: 900; }
.slider-label { color: var(--navy); }
.screen-note { margin-top: 2px; color: #df3557; }
.photo-visual { height: 96px; }
.photo-visual img { object-position: center; }
.chat-visual { height: 122px; }
.chat-visual img { object-position: top; }
.dashboard-visual { width: 112px; height: 78px; }
.dashboard-visual img { object-position: top; }

.development { color: #fff; background: var(--navy-dark); }
.development-inner { width: min(100%, 1080px); min-height: 142px; margin: 0 auto; padding: 30px 18px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.development-label { color: #91bbe7; }
.development h2 { margin: 5px 0 0; font-size: 28px; line-height: 1.2; }
.development p:not(.development-label) { max-width: 320px; margin: 0; color: #c8d8e8; font-size: 12px; text-align: right; }

footer { color: #d9e6f2; background: #0b1e38; }
.footer-inner { width: min(100%, 1080px); margin: 0 auto; padding: 38px 18px 22px; }
.footer-brand { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-bottom: 22px; border-bottom: 1px solid rgba(255,255,255,.16); }
.footer-brand .brand { color: #fff; }
.footer-brand .brand small { color: #9fb9d0; }
.footer-brand p { margin: 0; color: #9fb9d0; font-size: 10px; font-weight: 900; }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 22px; border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.footer-links a { min-height: 44px; display: flex; align-items: center; padding: 0 10px; border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); font-size: 10px; font-weight: 900; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--navy-dark); background: #fff; }
.copyright { margin: 21px 0 0; color: #6f8aa3; font-size: 9px; }

.not-found { min-height: 70svh; display: grid; align-content: center; }
.not-found h1 { margin: 6px 0 0; color: var(--navy); font-size: 32px; line-height: 1.3; }
.not-found p { margin: 12px 0 0; }

@media (max-width: 359px) {
  .hero-shell { grid-template-columns: minmax(0, 1fr) 82px; gap: 12px; }
  .hero h1 { font-size: 37px; }
  .hero-statement { font-size: 19px; }
  .hero-device, .hero-device img { width: 82px; }
  .button-primary { width: 100%; min-width: 0; gap: 10px; padding-inline: 10px; }
  .product-layout { grid-template-columns: minmax(0, 1fr) 82px; gap: 16px; }
  .product-visual { width: 82px; }
  .cotoa-slider { width: 82px; }
  .slider-controls { grid-template-columns: 25px minmax(0, 1fr) 25px; gap: 2px; }
  .slider-button { width: 25px; height: 25px; }
  .photo-visual { height: 82px; }
  .chat-visual { height: 104px; }
  .dashboard-visual { width: 82px; height: 60px; }
  .product-link { max-width: 100%; gap: 10px; padding-inline: 9px; font-size: 10px; }
  .development-inner { min-height: 156px; flex-direction: column; align-items: flex-start; justify-content: center; gap: 9px; }
  .development h2 { white-space: nowrap; }
  .development p:not(.development-label) { text-align: left; }
}

@media (min-width: 480px) {
  .hero-shell { grid-template-columns: minmax(0, 1fr) 118px; gap: 28px; }
  .hero-device, .hero-device img { width: 118px; }
  .product-layout { grid-template-columns: minmax(0, 1fr) 118px; gap: 28px; }
  .product-visual { width: 112px; }
  .cotoa-slider { width: 112px; }
  .photo-visual { height: 112px; }
  .chat-visual { height: 142px; }
  .dashboard-visual { width: 126px; height: 88px; }
}

@media (min-width: 760px) {
  html { scroll-padding-top: 74px; }
  .site-header { min-height: 66px; padding: 10px 28px; }
  .brand img { width: 38px; height: 38px; }
  .brand strong { font-size: 18px; }
  .site-header nav a { min-height: 40px; padding-inline: 15px; font-size: 12px; }
  .hero-shell { min-height: 500px; grid-template-columns: minmax(0, 1fr) 148px; gap: 20px 70px; padding: 64px 40px 58px; }
  .hero h1 { font-size: 62px; }
  .hero-statement { font-size: 27px; }
  .hero-lead { font-size: 15px; }
  .hero-actions { flex-direction: row; align-items: center; gap: 20px; }
  .button-primary { min-width: 205px; min-height: 48px; font-size: 13px; }
  .hero-device, .hero-device img { width: 148px; }
  .section-shell { padding: 62px 40px 54px; }
  .chooser h2 { font-size: 36px; }
  .choice-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .choice-grid a { min-height: 98px; padding-inline: 16px; }
  .choice-grid strong { font-size: 14px; }
  .product-layout { width: min(100%, 920px); min-height: 360px; grid-template-columns: minmax(0, 1fr) 160px; gap: 50px; padding: 50px 0; align-items: center; }
  .product-copy h2 { font-size: 38px; }
  .product-tagline { font-size: 18px; }
  .product-overview, .use-list li { font-size: 13px; }
  .product-visual { width: 132px; margin-top: 0; }
  .cotoa-slider { width: 126px; margin-top: 0; }
  .photo-visual { height: 112px; }
  .chat-visual { height: 166px; }
  .dashboard-visual { width: 160px; height: 112px; }
  .development-inner { min-height: 154px; padding: 38px 40px; }
  .development h2 { font-size: 36px; }
  .development p:not(.development-label) { font-size: 13px; }
  .footer-inner { padding: 46px 40px 25px; }
  .footer-links { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1120px) {
  .hero-shell, .section-shell, .development-inner, .footer-inner { padding-left: 0; padding-right: 0; }
}

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