:root{--ink:#293c39;--muted:#687570;--green:#317c68;--line:#e3e7e1;--cream:#fbf7ef;--gold:#be8d38}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:white;color:var(--ink);font-family:"Noto Sans JP","Yu Gothic",Meiryo,system-ui,sans-serif;line-height:1.9;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%}.wrap{width:min(1120px,calc(100% - 64px));margin-inline:auto}.header{border-bottom:1px solid var(--line);background:#ffffffed;position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:23px;letter-spacing:-.04em;font-weight:850}.brand span{font-size:11px;letter-spacing:.02em;font-weight:400;margin-left:7px;color:var(--muted)}nav{display:flex;gap:30px;align-items:center;font-size:13px;font-weight:600}.header nav a:hover,.section-nav a:hover{color:var(--green)}.nav-download{border:1px solid #cbded4;padding:8px 17px;border-radius:6px}.hero{padding-top:54px}.app-identity{display:flex;gap:27px;align-items:center}.app-icon{border-radius:27px;box-shadow:0 8px 26px #70523112;border:1px solid #f0e6d8}.eyebrow{color:var(--green);font-size:10px;font-weight:750;letter-spacing:.16em;margin:0 0 12px}.app-identity .eyebrow{margin-bottom:1px;font-size:9px}.app-identity h1{font-size:40px;line-height:1.25;letter-spacing:.05em;margin:0 0 3px}.app-subtitle{font-size:13px;letter-spacing:.08em;margin:0}.byline{font-size:12px;color:var(--muted);margin:4px 0 0}.byline span{margin:0 10px}.hero-body{display:grid;grid-template-columns:1fr 1fr;gap:74px;align-items:center;padding:39px 0 44px}.hero-heading{font-size:clamp(36px,4.3vw,56px);font-weight:750;line-height:1.5;letter-spacing:.03em;margin:0 0 23px}.lead{font-size:16px;color:var(--muted);line-height:2.1;margin-bottom:28px}.button{display:inline-flex;align-items:center;justify-content:center;gap:33px;padding:14px 24px;background:var(--green);border:1px solid var(--green);border-radius:7px;color:#fff;font-size:14px;font-weight:650}.button:hover{background:#246551}.availability{font-size:11px;color:var(--muted);margin:12px 0 0}.dot{display:inline-block;width:6px;height:6px;background:#b28c42;border-radius:50%;margin-right:6px;vertical-align:middle}.reminder-story{background:var(--cream);border:1px solid #eee6d8;border-radius:16px;padding:27px 30px 20px;box-shadow:12px 12px 0 #f4f7f3}.story-top{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:650;padding-bottom:14px;border-bottom:1px solid #e8decd}.little-bell{font-size:29px;color:var(--gold)}.reminder-story ol{list-style:none;margin:22px 0 0;padding:0}.reminder-story li{display:flex;gap:17px;position:relative;padding-bottom:25px}.reminder-story li:not(:last-child):before{content:"";position:absolute;left:14px;top:31px;width:1px;height:calc(100% - 30px);background:#d9d9c8}.step-dot{flex:0 0 29px;height:29px;display:grid;place-items:center;border-radius:50%;background:#f1e3c7;color:#7b633a;font-size:12px}.reminder-story small{display:block;font-size:10px;color:#867a64}.reminder-story strong{display:block;font-size:16px;font-weight:650;margin:3px 0}.reminder-story li p{font-size:11px;color:var(--muted);margin:3px 0 0}.diagram-note{font-size:9px;color:#8a857a;margin:0;border-top:1px solid #e8decd;padding-top:13px}.app-facts{display:grid;grid-template-columns:repeat(4,1fr);padding:25px 0 32px;border-top:1px solid var(--line)}.app-facts div{padding:0 20px;text-align:center;border-right:1px solid var(--line)}.app-facts div:first-child{padding-left:0}.app-facts div:last-child{border:0}.app-facts span{display:block;color:var(--muted);font-size:10px}.app-facts strong{font-weight:600;font-size:13px;display:block;margin-top:5px}.section-nav{border-block:1px solid var(--line);background:#fcfdfb}.section-nav nav{justify-content:center;gap:46px;padding:19px 0;font-size:12px}.section{padding-block:80px}h2{font-size:30px;line-height:1.65;letter-spacing:.025em;margin:0 0 20px;font-weight:700}h3{font-weight:650}.about{display:grid;grid-template-columns:1fr 1.25fr;gap:75px}.about-text p{font-size:14px;margin:0 0 18px;color:var(--muted)}.about-text p:last-child{margin:0}.about-text strong{color:var(--ink);font-weight:600}.comic-section{background:#f7f4ec;border-block:1px solid #eee9df;padding-block:65px}.comic-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:75px;align-items:start}.comic-intro{padding-top:34px;position:sticky;top:110px}.comic-intro p:not(.eyebrow){color:var(--muted);font-size:14px;line-height:2}.text-link{display:inline-flex;align-items:center;gap:30px;color:var(--green);border-bottom:1px solid #a9bdb1;padding-bottom:5px;font-size:13px;margin-top:14px}.comic-image{box-shadow:0 10px 35px #3b382410;border:5px solid white}.comic-image img{width:100%;height:auto}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}.section-heading h2{margin:0}.section-heading>p{font-size:13px;color:var(--muted);margin:0 0 3px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 32px}.feature-grid article{border-top:1px solid var(--line);padding:24px 0}.feature-mark{font-size:11px;color:var(--gold);letter-spacing:.06em}.feature-grid h3{font-size:16px;margin:9px 0}.feature-grid p{font-size:12px;color:var(--muted);margin:0}.screen-note{display:flex;gap:20px;align-items:center;background:#f5f8f5;padding:23px 25px;border-radius:8px;margin-top:25px}.screen-symbol{font-size:28px;color:#8ba899}.screen-note h3{font-size:14px;margin:0 0 3px}.screen-note p{font-size:11px;margin:0;color:var(--muted)}.badge{white-space:nowrap;font-size:9px;letter-spacing:.1em;color:#7c887e;border:1px solid #d5ded4;border-radius:99px;padding:4px 11px;margin-left:auto}.fine-print{font-size:11px;color:var(--muted);margin-top:15px}.download-section{background:#edf4ef;padding-block:64px;border-block:1px solid #dfe9e1}.download-layout{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:center}.download-layout p:not(.eyebrow):not(.fine-print){font-size:13px;color:var(--muted);line-height:2}.disabled,.disabled:hover{background:#d4dfd7;border-color:#d4dfd7;color:#52675b;cursor:not-allowed;margin-top:13px;min-width:260px}.release-info{padding:25px 30px;background:#ffffffb8;border:1px solid #dae5dc;border-radius:10px}.release-info h3{font-size:16px;margin:0 0 12px}.release-info dl{margin:0}.release-info dl>div{display:grid;grid-template-columns:115px 1fr;gap:12px;padding:12px 0;border-bottom:1px solid #e2e9e3;font-size:11px}.release-info dl>div:last-child{border:0}.release-info dt{color:var(--muted)}.release-info dd{margin:0}.release-info dd small{display:block;font-size:10px;color:var(--muted)}.setup{display:grid;grid-template-columns:1fr 1.25fr;gap:75px;border-bottom:1px solid var(--line)}.muted{color:var(--muted);font-size:13px}.setup-list{list-style:none;padding:0;margin:0}.setup-list li{display:flex;gap:25px;padding:20px 0;border-bottom:1px solid var(--line)}.setup-list li:first-child{padding-top:0}.setup-list li:last-child{border:0;padding-bottom:0}.setup-list li>span{color:var(--gold);font-size:12px;padding-top:3px}.setup-list h3{font-size:15px;margin:0 0 8px}.setup-list p{font-size:12px;color:var(--muted);margin:0}.faq{max-width:850px}.faq details{border-bottom:1px solid var(--line)}.faq summary{font-size:14px;font-weight:600;cursor:pointer;padding:21px 28px 21px 0;position:relative;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"＋";position:absolute;right:0;color:var(--green)}.faq details[open] summary:after{content:"−"}.faq details p{font-size:13px;color:var(--muted);margin:0;padding:0 24px 23px 0}.support{background:#f7f8f5;border:1px solid var(--line);border-radius:9px;padding:24px 29px;display:flex;align-items:center;gap:24px;margin-bottom:65px}.support h2{font-size:14px;margin:0 0 5px}.support p{font-size:11px;color:var(--muted);margin:0}.footer{padding-block:26px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}.footer>a:not(.brand){font-size:11px;color:var(--muted)}.footer small{font-size:10px;color:var(--muted)}.mobile{display:none}.skip{position:fixed;left:16px;top:-100px;background:white;padding:10px;z-index:50}.skip:focus{top:10px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #c59840;outline-offset:5px}
@media(max-width:760px){html{scroll-padding-top:85px}.wrap{width:calc(100% - 36px)}.header-inner{min-height:65px;gap:10px}.brand{font-size:20px}.brand span{font-size:9px;margin-left:3px}.header nav{gap:12px;font-size:10px}.header nav>a:first-child{display:none}.nav-download{padding:6px 9px}.hero{padding-top:29px}.app-identity{gap:18px}.app-icon{width:92px;height:92px;border-radius:20px}.app-identity h1{font-size:32px}.app-identity .eyebrow{font-size:7px;letter-spacing:.07em}.app-subtitle{font-size:11px}.byline{font-size:10px}.hero-body{grid-template-columns:1fr;gap:32px;padding:27px 0 32px}.hero-heading{font-size:38px;margin-bottom:18px}.lead{font-size:14px;line-height:2}.button{padding:12px 20px}.reminder-story{padding:21px 22px 18px;box-shadow:6px 6px 0 #f4f7f3;border-radius:12px}.reminder-story strong{font-size:15px}.app-facts{grid-template-columns:1fr 1fr;padding:16px 0 21px;gap:15px 0}.app-facts div{padding:0 8px}.app-facts div:nth-child(2){border:0}.app-facts strong{font-size:11px}.section-nav nav{overflow-x:auto;justify-content:flex-start;gap:25px;white-space:nowrap;padding:15px 0;font-size:11px}.section{padding-block:49px}h2{font-size:25px}.about,.comic-layout,.download-layout,.setup{grid-template-columns:1fr;gap:22px}.about h2{margin:0}.about-text p{font-size:13px}.desktop{display:none}.comic-section{padding-block:38px}.comic-intro{position:static;padding:0}.comic-intro h2{font-size:25px}.comic-intro p:not(.eyebrow){font-size:12px}.text-link{margin-top:5px}.comic-image{border-width:3px}.section-heading{display:block;margin-bottom:27px}.section-heading>p{margin-top:14px;font-size:12px}.feature-grid{grid-template-columns:1fr 1fr;gap:0 21px}.feature-grid article{padding:19px 0}.feature-grid h3{font-size:14px;line-height:1.7}.feature-grid p{font-size:11px}.screen-note{gap:12px;padding:19px 16px;flex-wrap:wrap}.screen-note h3{font-size:12px}.screen-symbol{display:none}.screen-note .badge{margin:0}.fine-print{font-size:10px}.download-section{padding-block:42px}.download-layout{gap:28px}.download-layout h2{margin-bottom:14px}.release-info{padding:19px 20px}.release-info dl>div{grid-template-columns:90px 1fr;gap:10px}.setup-list li{gap:17px}.setup h2{margin-bottom:10px}.setup .muted{margin-bottom:5px}.faq summary{font-size:13px}.faq details p{font-size:12px}.support{padding:20px;display:block;margin-bottom:35px}.support .badge{display:inline-block;margin:13px 0 0}.support h2{font-size:13px}.footer{flex-wrap:wrap;gap:13px}.footer small{flex-basis:100%}.mobile{display:block}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* v2: legible copy and a purpose-first product presentation */
body{font-size:17px;line-height:1.75}
.header nav,.section-nav nav{font-size:15px}
.eyebrow,.app-identity .eyebrow{font-size:12px}
.app-subtitle,.byline,.availability,.story-top,.reminder-story small,.reminder-story li p,
.diagram-note,.app-facts span,.app-facts strong,.about-text p,.comic-intro p:not(.eyebrow),
.text-link,.section-heading>p,.feature-mark,.feature-grid p,.screen-note p,.fine-print,
.download-layout p:not(.eyebrow):not(.fine-print),.release-info dl>div,.release-info dd small,
.muted,.setup-list li>span,.setup-list p,.faq details p,.support p,.footer>a:not(.brand),.footer small{
font-size:clamp(15px,1.35vw,17px)}
.reminder-story strong,.feature-grid h3,.setup-list h3,.faq summary,.screen-note h3,.support h2{font-size:18px}
.button{font-size:17px;min-height:52px}
.lead{font-size:19px;line-height:1.85}
.release-info dl>div{grid-template-columns:125px 1fr;gap:15px}
.how-section{background:#f7faf8;border-block:1px solid #e5ebe6}
.how-lead{font-size:18px;color:var(--muted);max-width:760px}
.how-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:28px 0}
.how-grid article{background:#fff;border:1px solid var(--line);border-radius:15px;padding:25px}
.how-num{font-weight:800;color:var(--green);font-size:15px}
.how-icon{font-size:44px;color:var(--green);line-height:1.4}
.how-grid h3{font-size:21px;line-height:1.5;margin:12px 0}
.how-grid p,.how-extra,.feature-highlight p{font-size:17px;line-height:1.75;color:var(--muted)}
.how-extra,.feature-highlight{background:#fff;border-left:5px solid var(--green);padding:20px 24px;border-radius:8px}
.feature-highlight{background:#f7faf8;margin-top:18px}
.feature-highlight strong{font-size:20px}
.feature-highlight p{margin:8px 0 0}
.apk-download{margin-top:14px}
@media(max-width:760px){
body{font-size:16px}
.header nav,.section-nav nav{font-size:14px}
.lead{font-size:17px}
.how-grid{grid-template-columns:1fr}
.how-grid article{padding:19px}
.release-info dl>div{grid-template-columns:110px 1fr}
.button{font-size:16px}
}

/* v3: authentic product screenshots, responsive app-store style */
.hero-line{display:block;white-space:nowrap}
@media (min-width:761px) and (max-width:1190px){.hero-body{gap:32px;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.hero-heading{font-size:clamp(30px,3.45vw,46px);letter-spacing:-.015em}}
.screens-section{background:#f8f7fb;border-block:1px solid #e9e5ef}
.screens-heading{display:flex;justify-content:space-between;gap:35px;align-items:end;margin-bottom:28px}
.screens-heading p:not(.eyebrow){font-size:17px;color:var(--muted);max-width:440px}
.screens-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;align-items:stretch}
.screen-card{margin:0;background:#fff;border:1px solid #e8e2ed;border-radius:19px;overflow:hidden;box-shadow:0 9px 26px #2820330c;min-width:0}
.screen-image{background:#1d1824;aspect-ratio:9/13.2;overflow:hidden}
.screen-image img{width:100%;height:100%;object-fit:cover;object-position:center top}
.screen-image.widget-image{background:#154f6d}
.screen-image.widget-image img{object-fit:cover;object-position:center top}
.screen-card figcaption{padding:17px 17px 20px}
.screen-card figcaption span{font-size:13px;color:#746187;font-weight:700;display:block;margin-bottom:6px}
.screen-card figcaption strong{display:block;font-size:18px;line-height:1.5;color:var(--ink)}
.screen-card figcaption p{font-size:15px;line-height:1.65;color:var(--muted);margin:8px 0 0}
.screen-disclaimer{font-size:15px;color:var(--muted);margin:20px 0 0}
@media(max-width:760px){.hero-line{white-space:normal}.hero-heading{font-size:clamp(29px,7.5vw,38px);line-height:1.4}.screens-heading{display:block}.screens-heading p:not(.eyebrow){font-size:16px}.screens-grid{display:flex;overflow-x:auto;gap:14px;scroll-snap-type:x mandatory;padding:4px 2px 18px;scrollbar-width:thin}.screen-card{flex:0 0 min(70vw,280px);scroll-snap-align:start}.screen-card figcaption strong{font-size:17px}.screen-card figcaption p{font-size:15px}.screen-disclaimer{font-size:14px}}

.contact-link{display:inline-flex;padding:13px 20px;border-radius:9px;background:#287d6c;color:#fff;text-decoration:none;font-size:16px;font-weight:700}

/* Privacy policy entry */
.privacy-note{padding:28px 0;border-top:1px solid #e2e8e4}.privacy-note h2{font-size:20px;margin:0 0 8px}.privacy-note p{font-size:16px;line-height:1.75;margin:0}.privacy-note a{font-weight:700;text-underline-offset:3px}