:root{--ink:#122033;--muted:#657184;--blue:#1457d9;--cyan:#11a7c7;--paper:#f5f8fc;--line:#dfe6ef;--white:#fff;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:#fff;line-height:1.8}
a{color:inherit;text-decoration:none}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(18,32,51,.08)}
.nav{height:74px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:800;letter-spacing:.03em;display:flex;align-items:center;gap:0}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;margin-top:-4px}.navlinks{display:flex;gap:26px;align-items:center}.navlinks a{font-size:14px;font-weight:700;color:#3c495b}.navlinks a:hover,.navlinks a.active{color:var(--blue)}.menu{display:none;border:0;background:none;font-size:28px}
.hero{position:relative;overflow:hidden;padding:120px 0 112px}.hero-banner{min-height:560px;background:linear-gradient(90deg,rgba(8,28,49,.72) 0%,rgba(8,28,49,.58) 34%,rgba(8,28,49,.24) 62%,rgba(8,28,49,.12) 100%),url("./banner-ducks.jpg") center center/cover no-repeat}.hero-banner:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,0))}.hero-content{position:relative;z-index:1;max-width:720px}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.18em;color:var(--blue);text-transform:uppercase}.hero-banner .eyebrow{color:#bfe5ff}.hero h1{font-size:clamp(44px,6.8vw,84px);line-height:1.03;margin:18px 0 24px;letter-spacing:-.04em;color:#fff}.hero p{max-width:620px;font-size:18px;color:rgba(255,255,255,.92)}.btns{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:999px;font-weight:800;border:1px solid var(--blue)}.hero-banner .btn.primary{background:#fff;color:var(--blue);border-color:#fff;box-shadow:0 12px 30px rgba(7,21,37,.2)}.hero-banner .btn.secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.82)}.btn.primary{background:var(--blue);color:#fff;box-shadow:0 12px 30px rgba(20,87,217,.22)}.btn.secondary{background:#fff;color:var(--blue)}
.pagehead{position:relative;overflow:hidden;padding:88px 0 70px;background:linear-gradient(90deg,rgba(8,28,49,.76) 0%,rgba(8,28,49,.58) 40%,rgba(8,28,49,.24) 72%,rgba(8,28,49,.12) 100%),url("./banner-ducks.jpg") center 46%/cover no-repeat;border-bottom:1px solid rgba(255,255,255,.18)}.pagehead:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,0))}.pagehead .wrap{position:relative;z-index:1}.pagehead .eyebrow{color:#bfe5ff}.pagehead h1{font-size:48px;margin:8px 0 0;color:#fff}.pagehead p{color:rgba(255,255,255,.9);max-width:700px}
section{padding:80px 0}.section-title{font-size:34px;margin:0 0 12px}.lead{color:var(--muted);max-width:760px;margin:0 0 40px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:0 14px 40px rgba(34,56,86,.06)}.card h3{margin:10px 0 8px;font-size:21px}.card p,.card li{color:#5c6879}.icon{font-size:28px}.card ul{padding-left:20px;margin-bottom:0}.soft{background:var(--paper)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.quote{font-size:28px;font-weight:800;line-height:1.5;border-left:5px solid var(--cyan);padding-left:24px}.facts{display:grid;grid-template-columns:160px 1fr;border-top:1px solid var(--line)}.facts dt,.facts dd{margin:0;padding:17px 10px;border-bottom:1px solid var(--line)}.facts dt{font-weight:800;color:#3b4b60}.facts dd{color:#566377}.mail{color:var(--blue);font-weight:800}
.timeline{position:relative;margin-top:36px}.timeline:before{content:"";position:absolute;left:122px;top:0;bottom:0;width:1px;background:var(--line)}.item{display:grid;grid-template-columns:100px 1fr;gap:45px;padding:0 0 32px}.year{font-weight:900;color:var(--blue);text-align:right}.work{padding:0 0 28px}.work h3{font-size:20px;margin:0 0 8px}.work p{color:#5d697a;margin:0}.tag{font-size:11px;padding:3px 8px;border-radius:999px;background:#eaf1ff;color:var(--blue);font-weight:800;margin-left:8px}
.pricing{font-size:34px;font-weight:900;color:var(--blue);margin:4px 0}.notice{border-left:4px solid var(--cyan);background:#eefbfe;padding:18px 22px;border-radius:0 12px 12px 0}
footer{background:#101d2f;color:#dce5f2;padding:42px 0}.foot{display:flex;justify-content:space-between;gap:30px;align-items:end}.foot small{color:#9caabe}.footnav{display:flex;gap:18px;font-size:13px}
@media(max-width:820px){.menu{display:block}.navlinks{display:none;position:absolute;left:0;right:0;top:74px;background:#fff;border-bottom:1px solid var(--line);padding:20px;flex-direction:column}.navlinks.open{display:flex}.hero{padding:88px 0 84px;min-height:460px}.hero-banner{background-position:62% center}.split{grid-template-columns:1fr}.grid3{grid-template-columns:1fr}.pagehead{padding:68px 0 54px;background-position:62% center}.pagehead h1{font-size:38px}.timeline:before{left:0}.item{grid-template-columns:1fr;gap:4px;padding-left:24px}.year{text-align:left}.facts{grid-template-columns:1fr}.facts dt{padding-bottom:0;border-bottom:0}.foot{display:block}.footnav{margin-top:20px;flex-wrap:wrap}}