:root {
  color-scheme: light;
  --paper: #f7f7f4;
  --white: #fff;
  --ink: #192321;
  --muted: #687771;
  --line: #e5eae5;
  --green: #2f6e67;
  --green-dark: #19342f;
  --mint: #a8dbca;
  --pale: #e8f1eb;
  --serif: "Noto Sans JP", "Yu Gothic", sans-serif;
  font-family: "DM Sans", "Noto Sans JP", system-ui, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-size: 15px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button[hidden] { display: none !important; }
.section-wrap { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 20; top: 12px; left: 12px; padding: 10px 14px; transform: translateY(-160%); border-radius: 8px; color: white; background: var(--green-dark); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid #76b9a8; outline-offset: 3px; }

.site-header { position: sticky; z-index: 10; top: 0; border-bottom: 1px solid rgb(25 35 33 / 7%); background: rgb(247 247 244 / 92%); backdrop-filter: blur(16px); }
.header-inner { display: flex; width: min(1280px, calc(100% - 64px)); height: 76px; align-items: center; justify-content: space-between; margin: 0 auto; }
.brand { display: inline-flex; align-items: center; gap: 9px; white-space: nowrap; }
.brand img { display: block; border-radius: 9px; object-fit: contain; }
.brand-word { font-size: 21px; font-weight: 800; letter-spacing: -.045em; line-height: 1; }
.brand-caption { margin-left: 6px; color: #84928c; font-size: 9px; font-weight: 700; letter-spacing: .16em; }
.site-nav { display: flex; align-items: center; gap: clamp(16px, 2.6vw, 36px); color: #52615b; font-size: 12px; font-weight: 600; }
.site-nav > a:not(.nav-cta):hover, .site-footer nav a:hover { color: var(--green); }
.nav-cta { display: inline-flex; min-height: 42px; align-items: center; gap: 12px; padding: 0 17px; border-radius: 8px; color: white; background: var(--green-dark); transition: background .18s ease, transform .18s ease; }
.nav-cta:hover, .button-primary:hover { background: #28574f; transform: translateY(-1px); }

.hero { display: grid; min-height: 650px; grid-template-columns: minmax(0, 1.02fr) minmax(410px, .98fr); align-items: center; gap: 52px; padding-block: 76px 86px; }
.hero-copy { padding: 6px 0 14px 2px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 21px; color: var(--green); font-size: 10px; font-weight: 700; letter-spacing: .16em; line-height: 1.5; }
.signal-icon { width: 18px; height: 18px; flex: 0 0 auto; object-fit: contain; }
h1, h2, h3, p { overflow-wrap: anywhere; }
.hero h1 { margin: 0; font-family: var(--serif); font-size: clamp(42px, 5.2vw, 66px); font-weight: 700; letter-spacing: -.055em; line-height: 1.35; }
em { color: var(--green); font-style: normal; }
.hero-lede { max-width: 480px; margin: 24px 0 0; color: #65736d; font-size: 15px; line-height: 2.05; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 14px; padding: 0 20px; border: 1px solid transparent; border-radius: 9px; cursor: pointer; font-size: 12px; font-weight: 700; transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease; }
.button-primary { color: white; background: var(--green-dark); }
.button-install { color: var(--green-dark); border-color: #b9cfc5; background: transparent; }
.button-install:hover { border-color: var(--green); background: var(--pale); }
.hero-note { margin: 15px 0 0; color: #829089; font-size: 11px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 34px; color: #566760; font-size: 10px; font-weight: 600; }
.hero-facts span::before { margin-right: 7px; color: var(--green); content: "•"; }

.hero-art { position: relative; display: grid; min-height: 440px; place-items: center; overflow: hidden; border-radius: 23px; background: #1a302b; box-shadow: 0 28px 64px rgb(30 54 47 / 15%); isolation: isolate; }
.hero-art::before { position: absolute; z-index: -1; inset: 0; background: radial-gradient(ellipse at 75% 12%, rgb(116 177 150 / 24%), transparent 39%), linear-gradient(145deg, transparent 44%, rgb(255 255 255 / 3%) 44.2%, transparent 44.5%); content: ""; }
.art-orbit { position: absolute; z-index: -1; width: 300px; height: 300px; border: 1px solid rgb(176 218 197 / 14%); border-radius: 50%; }
.orbit-one { top: -205px; right: -85px; }
.orbit-two { bottom: -233px; left: -116px; width: 370px; height: 370px; }
.signal-large-icon { position: absolute; top: 38px; right: 42px; width: 42px; height: 42px; object-fit: contain; opacity: .9; filter: drop-shadow(0 3px 12px rgb(0 0 0 / 16%)); }
.preview-card { width: min(79%, 400px); padding: 22px 22px 17px; border: 1px solid rgb(230 243 235 / 42%); border-radius: 13px; color: var(--ink); background: #f8faf7; box-shadow: 0 20px 48px rgb(0 0 0 / 23%); transform: rotate(-2deg); }
.preview-top { display: flex; align-items: center; gap: 8px; padding-bottom: 13px; border-bottom: 1px solid #e4e9e4; color: #83918a; font-size: 8px; font-weight: 700; letter-spacing: .11em; }
.preview-dot, .status-dot { width: 7px; height: 7px; flex: 0 0 auto; border-radius: 50%; background: #71ae91; }
.preview-number { margin-left: auto; color: #a0aaa5; }
.preview-question { margin: 18px 0 15px; font-family: var(--serif); font-size: 25px; font-weight: 700; letter-spacing: -.05em; line-height: 1.48; }
.preview-modes { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.preview-modes > div { display: grid; min-height: 76px; grid-template-columns: 24px 1fr; align-content: center; align-items: center; column-gap: 6px; padding: 10px; border: 1px solid #e6ebe6; border-radius: 7px; background: white; }
.preview-modes > div:last-child:nth-child(odd) { grid-column: 1 / -1; }
.preview-modes > div > span { grid-row: span 2; color: #91a09a; font-size: 8px; }
.preview-modes strong { font-size: 11px; }
.preview-modes small { grid-column: 2; color: #7a8982; font-size: 8px; line-height: 1.45; }
.preview-modes .preview-mode-current { border-color: #aacfc0; background: #eaf3ee; }
.preview-footer { display: flex; align-items: center; gap: 7px; margin-top: 15px; color: #64746c; font-size: 9px; }
.status-dot { width: 6px; height: 6px; }
.art-caption { position: absolute; bottom: 18px; left: 24px; margin: 0; color: rgb(225 240 230 / 58%); font-size: 8px; font-weight: 700; letter-spacing: .17em; }

.intro-strip { border-block: 1px solid var(--line); background: #fff; }
.intro-inner { display: flex; min-height: 136px; align-items: center; justify-content: space-between; }
.intro-inner p { margin: 0; color: #79877f; font-size: 13px; line-height: 1.9; }
.intro-inner strong { color: var(--ink); font-size: 17px; font-weight: 600; }
.intro-mark { color: #e0eae3; font-size: 70px; font-weight: 700; letter-spacing: -.11em; }
.modes-section { padding-block: 110px 104px; }
.section-heading { max-width: 590px; }
.section-heading .eyebrow { margin-bottom: 17px; }
.section-heading h2, .privacy-heading h2 { margin: 0; font-family: var(--serif); font-size: clamp(32px, 4.2vw, 49px); font-weight: 700; letter-spacing: -.06em; line-height: 1.46; }
.section-heading > p:not(.eyebrow) { max-width: 530px; margin: 17px 0 0; color: var(--muted); font-size: 13px; line-height: 2; }
.mode-list { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 13px; margin-top: 48px; }
.mode-card { position: relative; min-height: 226px; padding: 21px 21px 19px; border: 1px solid #e2e8e2; border-radius: 12px; background: #fff; transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease; }
.mode-card:hover { border-color: #b5d0c4; box-shadow: 0 12px 30px rgb(42 82 67 / 7%); transform: translateY(-3px); }
.mode-index { color: #8c9a93; font-size: 9px; font-weight: 700; letter-spacing: .1em; }
.mode-signal { width: 24px; height: 24px; margin: 13px 0 10px; border-radius: 8px; background: #edf3ef; }
.mode-signal::before { display: block; width: 8px; height: 8px; margin: 8px; border-radius: 50%; background: var(--green); content: ""; }
.mode-casual-genius .mode-signal::before { width: 12px; height: 12px; margin: 6px; border-radius: 4px; }
.mode-genius { border-color: #b5d1c3; background: #f1f6f1; }
.mode-genius .mode-signal { background: #d9ebe1; }
.mode-genius .mode-signal::before { width: 15px; height: 15px; margin: 4.5px; border-radius: 5px; }
.mode-pro .mode-signal::before { width: 13px; height: 13px; margin: 5.5px; border-radius: 2px; }
.mode-pro-mx18 .mode-signal { background: #e9f0f3; }
.mode-pro-mx18 .mode-signal::before { width: 14px; height: 14px; margin: 5px; border-radius: 50%; background: #5e8091; }
.mode-card h3 { margin: 0; font-size: 18px; font-weight: 700; letter-spacing: -.03em; }
.mode-summary { margin: 4px 0 0; color: var(--green); font-size: 11px; font-weight: 600; }
.mode-detail { margin: 13px 0 0; color: #718078; font-size: 11px; line-height: 1.8; }
.mode-footnote { display: flex; align-items: flex-start; gap: 9px; margin: 19px 0 0; color: #79877f; font-size: 10px; }
.mode-footnote span { color: var(--green); }

.how-section { padding-block: 100px; border-block: 1px solid var(--line); background: #eef2ed; }
.how-layout { display: grid; grid-template-columns: minmax(0, .92fr) minmax(360px, 1.08fr); align-items: start; gap: 90px; }
.how-heading { position: sticky; top: 112px; }
.text-link { display: inline-flex; align-items: center; gap: 13px; margin-top: 24px; color: var(--green); font-size: 12px; font-weight: 700; }
.step-list { margin: 0; padding: 0; list-style: none; }
.step-list li { display: grid; grid-template-columns: 45px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid #d9e1da; }
.step-list li:first-child { padding-top: 5px; }
.step-number { color: #84a092; font-size: 10px; font-weight: 700; letter-spacing: .09em; }
.step-list h3 { margin: -3px 0 4px; font-size: 15px; font-weight: 700; }
.step-list p { max-width: 410px; margin: 0; color: #6d7b73; font-size: 12px; line-height: 1.9; }

.privacy-section { padding-block: 100px; }
.privacy-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 75px; padding: 49px 54px; border-radius: 17px; color: #ecf2ee; background: #1b302b; }
.privacy-heading .eyebrow { color: #a4d2be; }
.privacy-heading h2 { font-size: clamp(28px, 3.2vw, 39px); }
.privacy-heading h2 em { color: #a7d8c4; }
.privacy-copy p { margin: 0 0 13px; color: #d0ded5; font-size: 12px; line-height: 2; }
.privacy-copy .privacy-caveat { margin-top: 18px; padding-top: 14px; border-top: 1px solid rgb(236 242 238 / 17%); color: #9eb6a8; font-size: 10px; }

.install-section { padding-block: 100px; border-block: 1px solid var(--line); background: #fff; }
.install-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; }
.install-main-button { margin-top: 24px; }
.install-guides { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.install-guide { min-height: 186px; padding: 22px; border: 1px solid #e2e8e2; border-radius: 11px; background: #fcfcfa; }
.install-guide-windows { grid-column: 1 / -1; }
.guide-index { color: #7c9789; font-size: 9px; font-weight: 700; letter-spacing: .13em; }
.install-guide h3 { margin: 11px 0 8px; font-size: 15px; }
.install-guide p { margin: 0; color: #718078; font-size: 11px; line-height: 1.9; }
.install-note { grid-column: 1 / -1; margin: 2px 0 0; color: #718078; font-size: 10px; }

.faq-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: 70px; padding-block: 105px 112px; }
.faq-list details { border-bottom: 1px solid #dfe5df; }
.faq-list details:first-child { border-top: 1px solid #dfe5df; }
.faq-list summary { position: relative; padding: 19px 36px 19px 0; cursor: pointer; font-size: 13px; font-weight: 600; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; top: 16px; right: 2px; color: var(--green); font-size: 20px; font-weight: 400; content: "+"; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 700px; margin: -2px 25px 18px 0; color: #6d7b73; font-size: 12px; line-height: 1.95; }

.final-cta { display: flex; min-height: 205px; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 70px; padding: 38px 48px; border-radius: 15px; color: white; background: var(--green-dark); }
.final-cta .eyebrow { margin-bottom: 12px; color: #a8d6c1; }
.final-cta h2 { margin: 0; font-family: var(--serif); font-size: clamp(24px, 3vw, 34px); letter-spacing: -.05em; }
.button-light { flex: 0 0 auto; color: var(--green-dark); background: white; }
.button-light:hover { background: #e6f2eb; transform: translateY(-1px); }
.site-footer { border-top: 1px solid var(--line); background: #f0f2ee; }
.footer-inner { display: grid; min-height: 126px; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px 32px; padding-block: 25px; }
.footer-brand .brand-word { font-size: 22px; }
.footer-inner > p { margin: 0; color: #738078; font-size: 9px; }
.site-footer nav { display: flex; gap: 20px; color: #52615b; font-size: 10px; }
.footer-copy { grid-column: 1 / -1; justify-self: end; color: #9ba69f; font-size: 8px; font-weight: 700; letter-spacing: .15em; }

@media (max-width: 920px) {
  .hero { min-height: auto; grid-template-columns: 1fr 1fr; gap: 28px; padding-block: 62px 70px; }
  .hero-art { min-height: 390px; }
  .preview-card { width: 84%; padding: 18px; }
  .mode-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .how-layout, .install-layout { gap: 44px; }
  .privacy-panel { gap: 42px; padding: 40px; }
  .faq-section { gap: 36px; }
}
@media (max-width: 700px) {
  html { scroll-padding-top: 74px; }
  .section-wrap { width: min(100% - 36px, 520px); }
  .header-inner { width: calc(100% - 32px); height: 64px; }
  .brand { gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .brand-word { font-size: 22px; }
  .brand-caption { display: none; }
  .site-nav { gap: 0; }
  .site-nav > a:not(.nav-cta) { display: none; }
  .nav-cta { min-height: 39px; gap: 7px; padding-inline: 12px; font-size: 10px; }
  .hero { grid-template-columns: 1fr; gap: 34px; padding-block: 51px 56px; }
  .hero h1 { font-size: clamp(41px, 11vw, 58px); }
  .hero-lede { margin-top: 17px; font-size: 13px; }
  .hero-actions { gap: 9px; margin-top: 22px; }
  .button { min-height: 47px; padding-inline: 15px; font-size: 11px; }
  .hero-facts { gap: 8px 14px; margin-top: 24px; font-size: 9px; }
  .hero-art { min-height: 360px; border-radius: 17px; }
  .signal-large { top: 25px; right: 27px; }
  .preview-card { width: min(84%, 350px); transform: rotate(-1.4deg); }
  .preview-question { font-size: 22px; }
  .intro-inner { min-height: 110px; }
  .intro-inner p { font-size: 11px; }
  .intro-inner strong { font-size: 14px; }
  .intro-mark { font-size: 55px; }
  .modes-section, .privacy-section, .install-section { padding-block: 72px; }
  .section-heading h2, .privacy-heading h2 { font-size: clamp(30px, 8vw, 40px); }
  .section-heading > p:not(.eyebrow) { font-size: 12px; }
  .mode-list { grid-template-columns: 1fr 1fr; gap: 9px; margin-top: 30px; }
  .mode-card { min-height: 205px; padding: 15px 14px; }
  .mode-card h3 { font-size: 16px; }
  .mode-summary { font-size: 10px; }
  .mode-detail { font-size: 10px; }
  .mode-footnote { font-size: 9px; }
  .how-section { padding-block: 70px; }
  .how-layout, .install-layout, .faq-section { grid-template-columns: 1fr; gap: 34px; }
  .how-heading { position: static; }
  .step-list li { grid-template-columns: 35px 1fr; gap: 12px; }
  .privacy-panel { grid-template-columns: 1fr; gap: 22px; padding: 28px 22px; border-radius: 13px; }
  .privacy-heading h2 { font-size: 29px; }
  .privacy-copy p { font-size: 11px; }
  .install-guides { gap: 9px; }
  .install-guide { min-height: 210px; padding: 15px 13px; }
  .install-guide p { font-size: 10px; }
  .faq-section { padding-block: 72px 80px; }
  .faq-list summary { font-size: 12px; }
  .final-cta { min-height: auto; flex-direction: column; align-items: flex-start; margin-bottom: 45px; padding: 27px 22px; }
  .final-cta h2 { font-size: 25px; }
  .footer-inner { grid-template-columns: auto 1fr; gap: 14px; padding-block: 21px; }
  .footer-inner > p { grid-column: 1 / -1; grid-row: 2; }
  .site-footer nav { grid-column: 1 / -1; grid-row: 3; flex-wrap: wrap; gap: 12px 20px; }
  .footer-copy { grid-column: 1 / -1; grid-row: 4; }
}
@media (max-width: 380px) {
  .mode-card { min-height: 218px; padding-inline: 12px; }
  .install-guides { grid-template-columns: 1fr; }
  .install-guide { min-height: auto; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}