:root{--blue:#1a47a3;--deep:#0f2a66;--soft:#e8eef8;--sky:#2eaee0;--sun:#f4ae2b;--sun-soft:#fdf1da;--surface:#f6f2ea;--white:#ffffff;--sand:#d9c4a6;--line:#e2dbd0;--ink:#1d2129;--muted:#5a5f6b}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--surface);color:var(--ink);font-family:"Zen Kaku Gothic New","Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;font-size:16px;line-height:28px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}a:hover{color:var(--deep)}
a:focus-visible,summary:focus-visible{outline:2px solid var(--deep);outline-offset:3px}
.on-dark a:focus-visible{outline-color:#fff}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.narrow{max-width:880px;margin:0 auto;padding:0 24px}
/* header */
.hd{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px 24px;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand img{width:52px;height:52px;object-fit:contain}
.brand b{display:block;font-size:17px;line-height:24px;letter-spacing:.02em}
.brand small{display:block;font-size:12px;line-height:18px;color:var(--muted)}
.gnav{display:flex;align-items:center;gap:22px}
.gnav a{display:flex;flex-direction:column;align-items:center;text-decoration:none;color:var(--ink);padding:4px 0}
.gnav a span{font-size:14px;line-height:20px;font-weight:700}
.gnav a.btn-p{flex-direction:row;color:#fff}
.gnav a em{font-style:normal;font-size:11px;line-height:14px;color:var(--blue);letter-spacing:.06em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;padding:0 24px;border-radius:999px;text-decoration:none;font-size:15px;font-weight:700;letter-spacing:.04em}
.btn-p{background:var(--blue);color:#fff}.btn-p:hover{color:#fff;background:var(--deep)}
.btn-s{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.btn-sm{min-height:46px;font-size:14px;padding:0 20px}
.arrow{width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;flex:none;background:var(--blue);color:#fff}
.btn-p .arrow{background:#fff;color:var(--blue);margin-right:-14px}
.btn-on-dark{background:#fff;color:var(--blue)}
.btn-ghost{background:transparent;color:#fff;border:2px solid #fff}.btn-ghost:hover{color:#fff}
/* breadcrumb */
.bc{font-size:13px;line-height:20px;color:var(--muted);padding-top:16px}
.bc ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 8px}
.bc li+li::before{content:"›";margin-right:8px;color:var(--muted)}
.bc a{color:var(--muted)}
/* hero */
.hero{padding:28px 0 0;overflow:hidden}
.hero .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:32px 56px}
.hero-txt{flex:1 1 440px;min-width:0;display:flex;flex-direction:column;gap:18px}
.eyebrow{margin:0;font-size:15px;line-height:24px;font-weight:700;color:var(--blue);letter-spacing:.06em}
h1{margin:0;font-size:clamp(28px,3.4vw,42px);line-height:1.4;font-weight:900;letter-spacing:.02em}
.lead{margin:0;font-size:17px;line-height:31px;font-weight:500}
.hero-img{flex:1 1 380px;min-width:0;position:relative;padding-bottom:16px}
.hero-img::before{content:"";position:absolute;right:-30px;top:-10px;width:58%;aspect-ratio:1/1;border-radius:50%;background:var(--sky);opacity:.18}
.hero-img img{position:relative;width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:56% 44% 48% 52%/46% 52% 48% 54%}
.ctas{display:flex;flex-wrap:wrap;gap:12px}
.wave{display:block;width:100%;height:60px}
/* sections */
.sec{padding:40px 0 80px}
.sec-white{background:#fff}
.sec-soft{background:var(--soft)}
.sh{display:flex;flex-direction:column;gap:4px;margin-bottom:28px}
.sh.c{align-items:center;text-align:center}
.sh .en{font-size:28px;line-height:36px;font-weight:900;letter-spacing:.02em;color:var(--blue)}
.sh h2{margin:0;font-size:26px;line-height:38px;font-weight:700;letter-spacing:.02em}
.checks{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin:0;padding:0;list-style:none}
.checks li{background:var(--surface);border-radius:999px;padding:14px 22px;display:flex;gap:12px;align-items:center}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.card{background:#fff;border-radius:24px;padding:24px;display:flex;flex-direction:column;gap:8px}
.sec-white .card{background:var(--surface)}
.card h3{margin:0;font-size:19px;line-height:30px;font-weight:700}
.card p{margin:0;font-size:15px;line-height:26px}
.num{font-size:28px;line-height:32px;font-weight:900;color:var(--blue)}
.point{margin:28px 0 0;text-align:center;font-size:20px;line-height:34px;font-weight:700}
.point span{color:var(--blue)}
.two{display:flex;flex-wrap:wrap;align-items:center;gap:32px 56px}
.two>*{flex:1 1 380px;min-width:0}
.two p{margin:0 0 14px}
.blob{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:46% 54% 42% 58%/56% 44% 56% 44%}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.steps li{background:#fff;border-radius:20px;padding:16px 20px;display:flex;gap:16px;align-items:flex-start}
.steps li b{width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;display:inline-flex;align-items:center;justify-content:center;flex:none;font-weight:900}
.note{margin:14px 0 0;font-size:14px;line-height:24px;color:var(--muted)}
.alert{background:var(--sun-soft);border-radius:20px;padding:18px 22px;margin-top:24px}
.alert h3{margin:0 0 6px;font-size:16px;line-height:26px}
.alert ul{margin:0;padding-left:1.2em}
.voice{background:#fff;border-radius:24px;padding:26px;margin:0}
.voice blockquote{margin:0 0 10px}
.tag{display:inline-block;background:var(--sand);font-size:13px;line-height:20px;font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:10px}
.price{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;max-width:760px;margin:0 auto}
.price>div{border-radius:24px;padding:24px 26px}
.price .f{background:var(--soft);border:2px solid var(--blue)}
.price .n{background:var(--surface)}
.price h3{margin:0;font-size:18px}
.price .yen{font-size:40px;line-height:50px;font-weight:900;color:var(--blue)}
.price .n .yen{color:var(--ink)}
.price s{color:var(--muted);margin-right:10px}
.badge{display:inline-block;font-size:12px;line-height:18px;font-weight:700;padding:3px 10px;border-radius:999px;margin:0 6px 8px 0}
.b-blue{background:var(--blue);color:#fff}.b-sun{background:var(--sun);color:var(--ink)}
details{background:#fff;border-radius:20px;padding:0 22px;margin-bottom:10px}
summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;min-height:60px;font-weight:700;padding:12px 0}
summary::-webkit-details-marker{display:none}
summary .q{width:32px;height:32px;border-radius:50%;background:var(--blue);color:#fff;display:inline-flex;align-items:center;justify-content:center;flex:none;font-size:15px}
summary .pl{margin-left:auto;color:var(--blue);font-size:22px;transition:transform .2s}
details[open] .pl{transform:rotate(45deg)}
details p{margin:0;padding:0 0 20px 46px}
.rel{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.rel a{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border-radius:999px;padding:10px 10px 10px 22px;text-decoration:none;color:var(--ink);font-weight:700}
.cta{background:var(--deep);color:#fff;padding:32px 0 80px}
.cta .narrow{display:flex;flex-direction:column;align-items:center;text-align:center;gap:18px}
.cta h2{margin:0;font-size:clamp(24px,3.6vw,32px);line-height:1.5;font-weight:900}
.cta p{margin:0}
.ft{background:var(--surface);padding:32px 0}
.ft .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;font-size:14px;line-height:24px;color:var(--muted)}
.ft b{color:var(--ink);font-size:16px}
.sp-bar{display:none}
@media (max-width:760px){
.gnav{display:none}
.sp-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;background:#fff;border-top:1px solid var(--line);padding:8px 10px;gap:8px}
.sp-bar a{flex:1 1 0;min-width:0;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:52px;border-radius:999px;text-decoration:none;font-size:15px;font-weight:700}
.sp-bar .t{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.sp-bar .l{flex-grow:1.4;background:var(--blue);color:#fff}
body{padding-bottom:72px}
br.pc{display:none}
}
/* blog */
.post-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.post-card a{display:flex;flex-direction:column;height:100%;background:#fff;border-radius:24px;overflow:hidden;text-decoration:none;color:var(--ink)}
.post-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.pc-body{padding:18px 22px 24px;display:flex;flex-direction:column;gap:8px}
.post-card h3{margin:0;font-size:18px;line-height:29px;font-weight:700}
.post-card p{margin:0;font-size:14px;line-height:24px;color:var(--muted)}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;font-size:14px;line-height:20px;color:var(--muted)}
.cat{background:var(--soft);color:var(--blue);font-size:12px;line-height:18px;font-weight:700;padding:3px 10px;border-radius:999px}
.post{padding-bottom:56px}
.post-hd{padding-top:20px;display:flex;flex-direction:column;gap:14px}
.post-hd h1{font-size:clamp(24px,3vw,32px);line-height:1.5;font-weight:900}
.byline{display:flex;align-items:center;gap:12px;font-size:13px;line-height:20px;color:var(--muted)}
.byline img{width:48px;height:48px;object-fit:cover;object-position:top;border-radius:50%;background:var(--soft)}
.byline b{color:var(--ink);font-size:15px}
.post-eye{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:24px;margin:24px 0 8px}
.post-body{font-size:17px;line-height:32px}
.post-body h2{margin:44px 0 14px;padding:10px 0 10px 18px;font-size:22px;line-height:34px;font-weight:700;border-left:5px solid var(--blue);background:#fff;border-radius:0 12px 12px 0}
.post-body p{margin:0 0 18px}
.post-body ul{margin:0 0 20px;padding:16px 20px 16px 2.2em;background:#fff;border-radius:16px}
.post-body li{margin:6px 0}
.post-body strong{color:var(--blue)}
.post-body .note{font-size:14px;line-height:24px}
.post-book{margin-top:32px;background:var(--sun-soft);border-radius:24px;padding:22px 24px;display:flex;flex-direction:column;gap:12px}
.post-book p{margin:0}
.post-rel{margin-top:28px}
.post-rel h2{margin:0 0 12px;font-size:18px}
.cat-nav{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px}
.cat-nav a{display:inline-flex;align-items:center;min-height:40px;padding:0 16px;border-radius:999px;background:#fff;color:var(--ink);text-decoration:none;font-size:14px;font-weight:700;border:1px solid var(--line)}
.cat-nav a[aria-current]{background:var(--blue);color:#fff;border-color:var(--blue)}
a.cat{text-decoration:none}
.post-body .steps{margin:0 0 12px}
.post-body .alert{margin:8px 0 24px}
.post-body .alert ul{background:none;padding:0 0 0 1.2em;margin:0}
.post-body ol.steps li span{font-size:16px;line-height:28px}
.flow3{margin:10px 0 0;padding:12px 14px 12px 2em;background:#fff;border-radius:12px;font-size:14px;line-height:24px}
.flow3 b{color:var(--blue)}