:root{color-scheme:light;--bg:#fafaf8;--paper:#fff;--text:#242b35;--muted:#63707c;--blue:#3c668b;--line:#e3e6e7;--soft:#f0f1ef;--shadow:0 14px 46px rgba(30,52,65,.055)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,sans-serif;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
a:hover{color:var(--blue)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #91bad4;outline-offset:4px}
button{font:inherit;cursor:pointer}
.wrap{width:calc(100% - 64px);max-width:1180px;margin-inline:auto}
.skip{position:absolute;left:-9999px;top:10px;padding:10px;background:#fff}
.skip:focus{left:10px;z-index:10}
.site-header{border-bottom:1px solid var(--line);background:#fafaf8}
.header-inner{min-height:88px;display:flex;justify-content:space-between;align-items:center;gap:28px}
.brand{display:flex;align-items:baseline;gap:6px;white-space:nowrap}
.brand-word{font-size:27px;font-weight:850;letter-spacing:-.085em}
.brand-slash{font-size:27px;font-weight:300;color:#b5c1c9}
.brand-sub{font-size:13px;font-weight:850;letter-spacing:.09em;color:var(--blue)}
.nav{display:flex;align-items:center;gap:32px}
.nav a{font-size:13px;color:#34414b;font-weight:650}
.nav a[aria-current="page"]{color:var(--blue)}
.nav-back{border:1px solid #d3dce1;border-radius:30px;padding:10px 16px}
.mobile-menu{display:none;position:relative}
.mobile-menu summary{cursor:pointer;list-style:none;border:1px solid var(--line);border-radius:9px;padding:9px 14px;font-size:13px}
.mobile-menu summary::-webkit-details-marker{display:none}
.mobile-menu-content{position:absolute;top:46px;right:0;background:#fff;border:1px solid var(--line);border-radius:9px;box-shadow:var(--shadow);min-width:210px;display:grid;z-index:10;padding:8px}
.mobile-menu-content a{font-size:13px;padding:10px 11px}
.eyebrow{font-size:11px;letter-spacing:.16em;color:var(--blue);font-weight:800}
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(260px,.85fr);gap:45px;padding:62px 0 80px;align-items:center}
.hero h1{font-size:clamp(31px,3.8vw,47px);font-weight:600;letter-spacing:0;line-height:1.5;margin:15px 0 18px}
.lead{font-size:15px;line-height:2;color:#4d5a65;max-width:40em}
.hero-note{background:#f0f1ef;border-radius:4px;padding:32px 36px}
.hero-note .eyebrow{letter-spacing:0;font-weight:600}
.hero-note h2{font-weight:600;line-height:1.6;font-size:21px;margin:10px 0 13px}
.hero-note p{font-size:13px;color:#586c78;line-height:1.9}
.section{padding:45px 0 85px;border-top:1px solid var(--line)}
.section h2{font-size:26px;letter-spacing:0;font-weight:600;margin:8px 0 10px}
.section-intro{color:var(--muted);font-size:13px;line-height:1.9;margin:0 0 25px}
.app-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.app-card{border:1px solid var(--line);background:#fff;border-radius:10px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .18s}
.app-card:hover{box-shadow:var(--shadow)}
.app-art{aspect-ratio:1.65;background:#e8ebea;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}
.preview-game{width:78%;padding:16px 19px;border:1px solid #cbd9df;background:#fff;border-radius:7px;box-shadow:0 8px 22px #30485c0e;transform:rotate(-3deg)}
.preview-game-label{font-size:9px;font-weight:750;letter-spacing:.14em;color:var(--blue)}
.preview-game-n{font-size:27px;font-weight:780;color:#2e4253;margin:9px 0 11px}
.preview-game-track{height:8px;border-radius:99px;background:#e2eaec;overflow:hidden}
.preview-game-progress{width:38%;height:100%;background:#6688a1}
.preview-game-foot{display:flex;justify-content:space-between;color:#8494a1;font-size:9px;margin-top:9px}
.app-card-copy{padding:24px 25px 29px;display:flex;flex-direction:column;flex:1}
.app-card-category{font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--blue)}
.app-card h3{font-size:21px;font-weight:600;line-height:1.5;margin:12px 0}
.app-card p{font-size:13px;line-height:1.9;color:var(--muted);margin:0 0 22px}
.app-link{margin-top:auto;align-self:flex-start;color:var(--blue);font-weight:750;font-size:13px;border-bottom:1px solid #a8bcca;padding-bottom:4px}
.app-link span{margin-left:6px}
.subsection{border-top:1px solid var(--line);padding:38px 0 67px}
.subsection h2{font-size:21px;font-weight:600;margin:0 0 13px}
.subsection p{line-height:2;color:var(--muted);font-size:14px;max-width:720px}
.subsection a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.page{padding:48px 0 95px;max-width:860px}
.page h1{font-size:clamp(30px,4vw,43px);font-weight:600;line-height:1.5;margin:14px 0 24px}
.page h2{font-size:22px;margin:42px 0 16px;font-weight:600}
.page p,.page li{line-height:2;color:#475663}
.page p{margin:0 0 18px}
.page ul{padding-left:1.5em}
.page a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.crumb{font-size:12px;color:#71808a}
.site-footer{background:#263845;color:#e0e7e8;padding:47px 0 27px}
.footer-top{display:flex;justify-content:space-between;gap:30px;padding-bottom:44px}
.footer-brand .brand-word{color:#fff}.footer-brand .brand-sub{color:#adc5d4}
.footer-lead{font-size:12px;color:#bbc7cd;line-height:1.9;max-width:340px;margin-top:15px}
.footer-nav{display:flex;align-items:flex-start;gap:19px 28px;flex-wrap:wrap}
.footer-nav a{font-size:11px;color:#cbd5d9}
.footer-bottom{border-top:1px solid #42535d;padding-top:20px;font-size:11px;color:#9fb0b9}
@media(max-width:900px){.app-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.wrap{width:calc(100% - 36px)}.header-inner{min-height:74px}.brand-word,.brand-slash{font-size:24px}.brand-sub{font-size:11px}.nav{display:none}.mobile-menu{display:block}.hero{grid-template-columns:1fr;gap:22px;padding:34px 0 50px}.hero h1{font-size:30px;margin:12px 0}.lead{font-size:13px}.hero-note{padding:23px}.hero-note h2{font-size:19px}.section{padding:38px 0 56px}.section h2{font-size:23px}.app-list{grid-template-columns:1fr}.app-card-copy{padding:20px 22px 25px}.app-art{aspect-ratio:1.95}.footer-top{flex-direction:column;gap:24px;padding-bottom:33px}.footer-nav{gap:14px 22px}.page{padding:36px 0 70px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}