:root{
    --navy:#173e70;
    --blue:#216bd6;
    --blue2:#0f5ebc;
    --green:#0a8f66;
    --ice:#eef4fb;
    --line:#d6e1ef;
    --ink:#13233b;
    --muted:#6a7890;
    --white:#fff;
    --max:1240px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    color:var(--ink);
    background:#fff;
    font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Yu Gothic","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
    line-height:1.8;
    overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.container.narrow{width:min(calc(100% - 48px),1040px)}
.section{padding:120px 0}
.eyebrow{margin:0 0 20px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.22em}
.controlled-title{line-height:1.45;letter-spacing:.03em;word-break:keep-all;overflow-wrap:normal}
.controlled-title span{display:block;width:max-content;max-width:100%}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.is-visible{opacity:1;transform:none}

.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.95);border-bottom:1px solid rgba(23,62,112,.08);backdrop-filter:blur(14px)}
.header-inner{width:min(calc(100% - 48px),1380px);min-height:88px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand img{width:180px}
.global-nav{display:flex;align-items:center;gap:34px;font-size:13px;font-weight:700}
.nav-cta{padding:14px 24px;background:var(--navy);color:#fff;border-radius:999px}
.menu-button{display:none;border:0;background:none;padding:10px}
.menu-button span{display:block;width:28px;height:2px;margin:6px;background:var(--navy)}

.hero{position:relative;padding:110px 0 130px;overflow:hidden;background:linear-gradient(135deg,#f9fbfe 0%,#eef4fb 64%,#e2ecf8 100%)}
.grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(23,62,112,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(23,62,112,.045) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 88%)}
.hero-grid{position:relative;z-index:1;width:min(calc(100% - 48px),1380px);margin:auto;display:grid;grid-template-columns:minmax(0,.9fr) minmax(520px,1.1fr);gap:72px;align-items:center}
.breadcrumb{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 36px;font-size:11px;letter-spacing:.16em;color:var(--muted)}
.status-badge{display:inline-block;margin-bottom:24px;padding:8px 14px;border:1px solid var(--blue);border-radius:999px;color:var(--blue);font-size:10px;font-weight:800;letter-spacing:.15em}
.hero h1{margin:0 0 28px;color:var(--navy);line-height:1.08}
.hero h1 span{display:block;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(48px,6vw,84px);font-weight:600}
.hero h1 small{display:block;margin-top:20px;font-size:clamp(18px,2vw,28px);font-weight:700}
.hero-lead{margin:0 0 24px;color:var(--blue2);font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(27px,3vw,42px);font-weight:600}
.hero-text{margin:0;max-width:640px;color:var(--muted)}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.hero-meta span{padding:8px 13px;border:1px solid rgba(23,62,112,.18);border-radius:999px;font-size:10px;font-weight:800;letter-spacing:.12em}

.hero-visual{position:relative;min-height:610px}
.screen{position:absolute;background:#fff;border:1px solid var(--line);box-shadow:0 26px 64px rgba(23,62,112,.16);overflow:hidden}
.main-screen{width:72%;left:0;top:20px;border-radius:24px}
.sub-screen{width:38%;right:0;bottom:0;border-radius:24px;border:8px solid #fff}

.notice{background:#fff5dc;border-top:1px solid #f0d999;border-bottom:1px solid #f0d999}
.notice-inner{display:flex;gap:24px;align-items:center;padding:22px 0}
.notice strong{color:#765300}
.notice p{margin:0;color:#766b50}

.section-head{display:grid;grid-template-columns:1fr .75fr;gap:80px;align-items:end;margin-bottom:70px}
.section-head h2,.large-title,.result h2,.cta h2{margin:0;color:var(--navy);font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(38px,5vw,64px);font-weight:600;line-height:1.4}
.section-head>p{margin:0;color:var(--muted)}

.overview-grid{display:grid;grid-template-columns:1.2fr .8fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.overview-grid dl{margin:0;padding:22px 0}
.overview-grid dl div{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:18px 24px;border-bottom:1px solid var(--line)}
.overview-grid dl div:last-child{border-bottom:0}
.overview-grid dt{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--blue)}
.overview-grid dd{margin:0;font-weight:700}
.overview-message{padding:52px;background:var(--navy);color:#fff;display:flex;flex-direction:column;justify-content:center}
.overview-message strong{font-size:11px;letter-spacing:.18em;color:#bcd0e9}
.overview-message p{margin:18px 0 0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:28px;line-height:1.7}

.challenge{background:var(--ice)}
.challenge .large-title{margin-bottom:70px}
.challenge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.challenge-card{padding:42px;background:#fff;border-top:4px solid var(--blue);box-shadow:0 16px 40px rgba(23,62,112,.06)}
.challenge-card>span{font-family:Georgia,serif;font-size:54px;color:#dce7f4}
.challenge-card h3{margin:12px 0 16px;color:var(--navy);font-size:22px}
.challenge-card p{margin:0;color:var(--muted)}

.solution{background:linear-gradient(145deg,#173e70,#20558d);color:#fff}
.solution .section-head h2{color:#fff}
.solution .section-head>p{color:#c9d8ea}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.15)}
.feature-card{padding:54px;background:rgba(23,62,112,.96)}
.feature-card>span{display:inline-grid;place-items:center;width:44px;height:44px;border:1px solid rgba(255,255,255,.3);border-radius:50%;font-size:12px;color:#9ac2ff}
.feature-card h3{margin:24px 0 14px;font-size:27px}
.feature-card p{margin:0;color:#c9d8ea}

.showcase-item{display:grid;grid-template-columns:.42fr .58fr;gap:60px;align-items:center;padding:70px 0;border-top:1px solid var(--line)}
.showcase-item.reverse{grid-template-columns:.58fr .42fr}
.showcase-item.reverse .showcase-copy{order:2}
.showcase-item.reverse .showcase-image{order:1}
.showcase-copy>span{font-size:11px;font-weight:800;letter-spacing:.18em;color:var(--blue)}
.showcase-copy h3{margin:16px 0 20px;font-size:34px;color:var(--navy)}
.showcase-copy p{margin:0;color:var(--muted)}
.showcase-image{background:#f5f8fc;border:1px solid var(--line);padding:20px;box-shadow:0 20px 50px rgba(23,62,112,.08)}
.showcase-image.narrow-image{max-width:460px;margin:auto}
.showcase-image img{width:100%}

.roadmap{background:#f7f9fc}
.roadmap-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.roadmap-list article{padding:30px;background:#fff;border:1px solid var(--line)}
.roadmap-list span{font-size:10px;font-weight:800;letter-spacing:.16em;color:var(--blue)}
.roadmap-list h3{margin:14px 0;color:var(--navy)}
.roadmap-list p{margin:0;color:var(--muted)}

.function-list{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.function-list span{display:flex;gap:18px;align-items:center;padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);font-weight:700}
.function-list small{color:var(--blue);font-size:10px}

.result{background:linear-gradient(135deg,#f1f5fa,#e4edf7)}
.result-grid{display:grid;grid-template-columns:1fr .8fr;gap:70px;align-items:center}
.result-copy>p:last-child{color:var(--muted)}
.client-voice{margin:0;padding:50px;background:#fff;border-left:6px solid var(--blue);box-shadow:0 20px 50px rgba(23,62,112,.08)}
.client-voice span{font-size:11px;font-weight:800;letter-spacing:.18em;color:var(--blue)}
.client-voice p{margin:20px 0 0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:28px;line-height:1.7;color:var(--navy)}

.cta{background:var(--navy);color:#fff;text-align:center}
.cta h2{color:#fff}
.cta p:not(.eyebrow){color:#c9d8ea}
.cta-button{display:inline-flex;align-items:center;gap:34px;margin-top:28px;padding:20px 34px;background:var(--blue);font-weight:800}
.cta-button span{font-size:22px}

.site-footer{background:#0c2749;color:#fff;padding:60px 0}
.footer-inner{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
.footer-brand img{width:170px;filter:brightness(0) invert(1)}
.footer-links{display:flex;gap:24px;font-size:12px}
.footer-inner>p{grid-column:1/-1;margin:0;color:#91a7c4;font-size:11px}
.page-top{position:fixed;right:24px;bottom:24px;z-index:100;width:50px;height:50px;border-radius:50%;display:grid;place-items:center;background:var(--blue);color:#fff}

@media (max-width:1100px){
    .hero-grid{grid-template-columns:1fr;gap:60px}
    .hero-visual{min-height:560px}
    .section-head{grid-template-columns:1fr;gap:24px}
    .roadmap-list{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:820px){
    .section{padding:84px 0}
    .header-inner{min-height:74px}
    .brand img{width:150px}
    .menu-button{display:block}
    .global-nav{position:absolute;left:0;right:0;top:74px;display:none;flex-direction:column;align-items:stretch;gap:0;padding:14px 24px 24px;background:#fff;border-bottom:1px solid var(--line)}
    .global-nav.is-open{display:flex}
    .global-nav a{padding:14px 0}
    .nav-cta{text-align:center;margin-top:10px}
    .hero{padding:72px 0 90px}
    .hero-grid{width:min(calc(100% - 32px),1380px)}
    .hero-visual{min-height:500px}
    .main-screen{width:78%}
    .sub-screen{width:40%}
    .overview-grid,.result-grid{grid-template-columns:1fr}
    .challenge-grid,.feature-grid{grid-template-columns:1fr}
    .showcase-item,.showcase-item.reverse{grid-template-columns:1fr;gap:30px}
    .showcase-item.reverse .showcase-copy,.showcase-item.reverse .showcase-image{order:initial}
    .function-list{grid-template-columns:repeat(2,1fr)}
    .notice-inner{align-items:flex-start;flex-direction:column;gap:4px}
    .footer-inner{grid-template-columns:1fr}
    .footer-links{flex-wrap:wrap}
    .footer-inner>p{grid-column:auto}
}

@media (max-width:560px){
    .container,.container.narrow{width:min(calc(100% - 30px),var(--max))}
    .header-inner{width:min(calc(100% - 30px),1380px)}
    .hero-grid{width:min(calc(100% - 30px),1380px)}
    .hero-visual{min-height:380px}
    .main-screen{width:82%;border-radius:18px}
    .sub-screen{width:42%;border-width:5px;border-radius:16px}
    .controlled-title{font-size:clamp(34px,10.5vw,48px);line-height:1.5;letter-spacing:.01em}
    .controlled-title span{width:auto}
    .overview-grid dl div{grid-template-columns:1fr;gap:4px;padding-inline:0}
    .overview-message{padding:34px}
    .overview-message p{font-size:23px}
    .challenge-card,.feature-card{padding:34px 28px}
    .roadmap-list{grid-template-columns:1fr}
    .function-list{grid-template-columns:1fr}
    .client-voice{padding:34px 28px}
    .client-voice p{font-size:22px}
    .cta-button{width:100%;justify-content:center}
}


/* Version 2：ヒーロー見出しの改行位置を固定 */
.hero-title{
    margin:0 0 28px;
    color:var(--navy);
    line-height:1.08;
}

.hero-title > span{
    display:block;
    width:max-content;
    max-width:100%;
    white-space:nowrap;
    font-family:"Yu Mincho","Hiragino Mincho ProN",serif;
    font-size:clamp(48px,5.4vw,80px);
    font-weight:600;
}

.hero-title small{
    display:block;
    margin-top:20px;
    font-size:clamp(18px,2vw,28px);
    font-weight:700;
}

@media (max-width:820px){
    .hero-title > span{
        white-space:normal;
        width:auto;
        font-size:clamp(42px,11vw,64px);
    }
}

@media (max-width:560px){
    .hero-title > span{
        font-size:clamp(38px,10.5vw,54px);
        line-height:1.15;
    }
}