:root{
  --bg:#f7f9fd;
  --bg-2:#eef3fa;
  --ink:#1f2b4d;
  --muted:#5a6a8c;
  --line:#dde6f5;
  --primary:#2baee8;
  --primary-ink:#0f7fb5;
  --holo:linear-gradient(115deg,#7fe7ff 0%,#b8f5e0 18%,#d9c8ff 38%,#ffc2ea 55%,#ffe9b8 72%,#a8f0ff 88%,#7fe7ff 100%);
  --holo-ink:linear-gradient(115deg,#1fa3e0 0%,#33c9c1 20%,#7c7cf0 40%,#d86bc4 58%,#e8944f 76%,#1fa3e0 100%);
  --radius:10px;
  --shadow:0 12px 40px rgba(31,43,77,.08);
  --font-jp:"Noto Sans JP",system-ui,sans-serif;
  --font-en:"Sora","Noto Sans JP",system-ui,sans-serif;
  --wrap:1200px;
  --pad:clamp(20px,5vw,64px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-jp);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700}
p,ul{margin:0}
ul{padding:0;list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}

#stardust{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.nav,main,.footer{position:relative;z-index:1}

.eyebrow{font-family:var(--font-en);font-size:12px;letter-spacing:.22em;color:var(--primary-ink);font-weight:600;margin-bottom:14px}
.lead{color:var(--muted);font-size:15px}
.holo-text{background:var(--holo-ink);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:holo-shift 6s linear infinite}
@keyframes holo-shift{to{background-position:300% 0}}
.en{font-family:var(--font-en)}

/* header */
.nav{position:sticky;top:0;z-index:20;backdrop-filter:blur(12px);background:rgba(247,249,253,.8);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-en);font-weight:700;letter-spacing:.14em;font-size:15px}
.mark{width:34px;height:19px;fill:url(#holoFill);filter:drop-shadow(0 1px 0 rgba(31,43,77,.35))}
.nav-links{display:flex;align-items:center;gap:32px;font-size:14px;font-weight:500}
.nav-links a{position:relative;padding:6px 0;color:var(--ink)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--holo-ink);background-size:300% 100%;transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav-links a:hover::after,.nav-links a[aria-current]::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:12px}
.menu-btn{display:none;width:44px;height:44px;border:0;background:none;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.menu-btn span{width:22px;height:2px;background:var(--ink);transition:transform .3s,opacity .3s}
@media(max-width:860px){
  .nav-links{display:none}
  .menu-btn{display:flex}
  .nav.open .nav-links{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px var(--pad) 16px}
  .nav.open .nav-links a{padding:14px 0;width:100%;border-bottom:1px solid var(--line);font-size:16px}
  .nav.open .menu-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav.open .menu-btn span:nth-child(2){opacity:0}
  .nav.open .menu-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-cta .btn{display:none}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 30px;border-radius:8px;font-weight:700;font-size:15px;transition:transform .3s,box-shadow .3s,background .3s;border:1.5px solid var(--line);background:#fff;color:var(--ink);min-height:48px}
.btn-sm{padding:9px 18px;font-size:13px;min-height:40px}
.btn-primary{position:relative;background:var(--ink);color:#fff;border-color:var(--ink);overflow:hidden}
.btn-primary::after{content:"";position:absolute;inset:0;background:var(--holo);background-size:300% 100%;opacity:0;mix-blend-mode:screen;transition:opacity .3s;animation:holo-shift 4s linear infinite}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(43,174,232,.35)}
.btn-primary:hover::after{opacity:.55}
.btn-outline{border-color:var(--primary);color:var(--primary-ink)}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid var(--primary);outline-offset:3px}
.link-arrow{font-weight:700;font-size:14px;color:var(--primary-ink)}
.link-arrow::after{content:" →";transition:margin .3s}
.link-arrow:hover::after{margin-left:6px}
.btn-block{width:100%}

/* hero (top) */
.hero{position:relative;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:32px;min-height:min(calc(100vh - 64px),720px);max-width:var(--wrap);margin:0 auto;padding:56px var(--pad)}
.hero h1{font-size:clamp(32px,3.8vw,52px);margin-bottom:20px;line-height:1.28}
.hero .lead{font-size:clamp(15px,1.3vw,17px);margin-bottom:32px;max-width:520px}
.cta-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-copy{animation:rise .8s cubic-bezier(.2,.8,.2,1) both}
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:300px;animation:rise .9s .15s cubic-bezier(.2,.8,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@media(max-width:900px){.hero-inner{grid-template-columns:1fr;padding-top:40px;min-height:0}.hero .lead br{display:none}}

.whale-glow{position:absolute;width:70%;aspect-ratio:1;border-radius:50%;background:var(--holo);filter:blur(70px);opacity:.45;animation:glow 8s ease-in-out infinite}
@keyframes glow{0%,100%{transform:scale(.9);opacity:.35}50%{transform:scale(1.05);opacity:.55}}
.whale-wrap{position:relative;width:min(620px,92vw);transform:rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .2s ease-out;will-change:transform}
@media(min-width:1100px){.whale-wrap{width:680px;margin-right:-80px}}
.whale-hero{width:100%;height:auto;overflow:visible;animation:swim 6s ease-in-out infinite;filter:drop-shadow(0 24px 40px rgba(43,174,232,.28))}
@keyframes swim{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-16px) rotate(1.5deg)}}
.sheen{animation:sheen 4.5s cubic-bezier(.4,0,.2,1) infinite}
@keyframes sheen{0%{transform:translateX(0)}60%,100%{transform:translateX(720px)}}
.spout path{transform-origin:center;animation:twinkle 2.4s ease-in-out infinite}
.spout path:nth-child(2){animation-delay:.6s}.spout path:nth-child(3){animation-delay:1.2s}
@keyframes twinkle{0%,100%{opacity:.3;transform:scale(.7)}50%{opacity:1;transform:scale(1.1)}}
.bubbles{position:absolute;inset:0;pointer-events:none}
.bubbles i{position:absolute;bottom:10%;left:calc(30% + var(--i) * 9%);width:10px;height:10px;border-radius:50%;border:1.5px solid rgba(43,174,232,.6);background:rgba(255,255,255,.5);animation:bubble 7s linear infinite;animation-delay:calc(var(--i) * -1.1s)}
.bubbles i:nth-child(1){--i:0}.bubbles i:nth-child(2){--i:1;width:6px;height:6px}.bubbles i:nth-child(3){--i:2}.bubbles i:nth-child(4){--i:3;width:14px;height:14px}.bubbles i:nth-child(5){--i:4;width:7px;height:7px}.bubbles i:nth-child(6){--i:5}
@keyframes bubble{0%{transform:translateY(0) translateX(0);opacity:0}15%{opacity:.9}100%{transform:translateY(-320px) translateX(20px);opacity:0}}

/* trust strip */
.trust{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-inner{display:grid;grid-template-columns:repeat(3,1fr);max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.trust-inner>div{padding:34px 16px;text-align:center;border-left:1px solid var(--line)}
.trust-inner>div:first-child{border-left:0}
.trust .num{font-family:var(--font-en);font-size:clamp(30px,3.6vw,46px);font-weight:700;line-height:1.1}
.trust .num small{font-family:var(--font-jp);font-size:15px;margin-left:4px;color:var(--ink)}
.trust .cap{font-size:13px;color:var(--muted);margin-top:6px}
@media(max-width:640px){.trust-inner{grid-template-columns:1fr}.trust-inner>div{border-left:0;border-top:1px solid var(--line);padding:22px 8px}.trust-inner>div:first-child{border-top:0}}

/* sections */
.section{padding:96px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{text-align:center;margin-bottom:52px}
.section-head h2,.h2{font-size:clamp(28px,3.4vw,40px)}
.section-head .en-title{font-family:var(--font-en);font-size:clamp(34px,4.4vw,56px);letter-spacing:-.02em;line-height:1.05;display:block}
.section-head .jp-title{display:block;font-size:14px;color:var(--muted);font-weight:500;margin-top:10px;letter-spacing:.1em}
.section-head.left{text-align:left}
.section-foot{text-align:center;margin-top:44px}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:1000px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.grid-3{grid-template-columns:1fr}}
@media(max-width:560px){.grid-4{grid-template-columns:1fr}}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px 28px;transition:transform .3s,box-shadow .3s;overflow:hidden;display:flex;flex-direction:column}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--holo);background-size:300% 100%;animation:holo-shift 6s linear infinite}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card img{height:140px;width:auto;margin:6px auto 22px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14px;flex:1}
.card .link-arrow{margin-top:16px}
.card .eyebrow{margin-bottom:8px}
.section .alt .card{background:var(--bg)}

/* zigzag feature rows */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:56px 0}
.feature+.feature{border-top:1px solid var(--line)}
.feature.rev .feature-visual{order:-1}
.feature h3{font-size:clamp(24px,2.8vw,34px);margin-bottom:16px;line-height:1.35}
.feature .lead{margin-bottom:22px}
.feature-visual{position:relative}
.feature-visual img{max-width:440px;width:100%;margin:0 auto}
.feature-visual::before{content:"";position:absolute;inset:10% 10%;border-radius:50%;background:var(--holo);filter:blur(60px);opacity:.3;z-index:-1}
.check{display:grid;gap:10px;margin-bottom:24px}
.check li{position:relative;padding-left:28px;font-size:15px}
.check li::before{content:"✦";position:absolute;left:0;top:0;color:var(--primary)}
@media(max-width:860px){.feature{grid-template-columns:1fr;gap:28px;padding:40px 0}.feature.rev .feature-visual{order:0}}

/* purpose (目的別) */
.purpose{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.purpose article{text-align:center;padding:10px}
.purpose img{height:150px;width:auto;margin:0 auto 22px}
.purpose .eyebrow{margin-bottom:8px}
.purpose h3{font-size:19px;margin-bottom:10px}
.purpose p{color:var(--muted);font-size:14px;margin-bottom:20px}
@media(max-width:820px){.purpose{grid-template-columns:1fr;gap:40px}}

/* about teaser */
.about-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.about-inner .role{font-family:var(--font-en);letter-spacing:.14em;font-size:12px;color:var(--primary-ink);font-weight:600;margin:8px 0 20px}
.about-inner .lead{margin-bottom:22px}
.about-inner img{max-width:420px;width:100%;margin:0 auto}
@media(max-width:800px){.about-inner{grid-template-columns:1fr}}

/* cta band */
.cta-band{position:relative;overflow:hidden;background:#fff;border-top:1px solid var(--line)}
.cta-band::before{content:"";position:absolute;inset:auto -10% -60% -10%;height:120%;background:var(--holo);filter:blur(90px);opacity:.35;pointer-events:none}
.cta-inner{position:relative;text-align:center;padding:96px var(--pad);max-width:var(--wrap);margin:0 auto}
.cta-inner h2{font-size:clamp(26px,3.4vw,40px);margin-bottom:14px}
.cta-inner .lead{margin-bottom:30px}
.cta-inner .cta-row{justify-content:center}

/* page hero (sub pages) */
.page-hero{padding:72px 0 40px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-10%;top:-40%;width:50%;aspect-ratio:1;border-radius:50%;background:var(--holo);filter:blur(90px);opacity:.3;pointer-events:none}
.page-hero .wrap{position:relative}
.page-hero .en-title{font-family:var(--font-en);font-size:clamp(40px,6vw,76px);letter-spacing:-.02em;line-height:1;display:block}
.page-hero .jp-title{display:block;font-size:clamp(16px,1.8vw,20px);color:var(--muted);font-weight:500;margin-top:14px}
.page-hero .lead{margin-top:22px;max-width:640px;font-size:16px}
.crumb{font-size:12px;color:var(--muted);margin-bottom:24px;font-family:var(--font-en);letter-spacing:.08em}
.crumb a:hover{color:var(--ink)}

/* company */
.mission{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.mission .big{font-family:var(--font-en);font-size:clamp(30px,4.2vw,56px);line-height:1.1;letter-spacing:-.02em;margin-bottom:22px}
.mission .lead{font-size:16px}
.mission img{max-width:420px;width:100%;margin:0 auto}
@media(max-width:800px){.mission{grid-template-columns:1fr}}
.message{max-width:760px;margin:0 auto}
.message .quote{font-size:clamp(20px,2.4vw,28px);font-weight:700;line-height:1.6;margin-bottom:24px}
.message .lead{font-size:16px;margin-bottom:14px}
.message .sign{margin-top:26px;font-weight:700}
.message .sign small{display:block;font-weight:500;color:var(--muted);font-size:12px;font-family:var(--font-en);letter-spacing:.14em;margin-bottom:4px}
.company-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:start}
.company-table{margin:0;border-top:1px solid var(--line)}
.company-table>div{display:grid;grid-template-columns:140px 1fr;gap:16px;padding:20px 4px;border-bottom:1px solid var(--line);font-size:15px}
.company-table dt{color:var(--muted);font-weight:500}
.company-table dd{margin:0}
.company-inner img{max-width:380px;width:100%;margin:0 auto}
@media(max-width:800px){.company-inner{grid-template-columns:1fr}.company-table>div{grid-template-columns:96px 1fr}}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.contact-grid img{max-width:400px;width:100%;margin:0 auto}
.contact-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:clamp(24px,4vw,40px);box-shadow:var(--shadow);position:relative;overflow:hidden}
.contact-box::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--holo);background-size:300% 100%;animation:holo-shift 6s linear infinite}
.contact-box h2{font-size:24px;margin-bottom:8px}
.contact-box .lead{margin-bottom:22px}
.contact-box .note{font-size:12px;color:var(--muted);margin-top:14px}
.topics{display:grid;gap:12px;margin:0 0 26px}
.topics li{display:flex;gap:12px;align-items:flex-start;font-size:14px;padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:var(--bg)}
.topics li b{font-family:var(--font-en);font-size:11px;letter-spacing:.14em;color:var(--primary-ink);white-space:nowrap;padding-top:4px}
@media(max-width:800px){.contact-grid{grid-template-columns:1fr}}

/* footer */
.footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 28px}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.footer .brand{margin-bottom:12px}
.footer .desc{font-size:13px;color:var(--muted);max-width:320px}
.footer h4{margin:0 0 14px;font-family:var(--font-en);font-size:12px;letter-spacing:.2em;color:var(--muted)}
.footer ul{display:grid;gap:10px;font-size:14px}
.footer ul a:hover{color:var(--primary-ink)}
.footer-bottom{max-width:var(--wrap);margin:40px auto 0;padding:20px var(--pad) 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-family:var(--font-en);font-size:12px;letter-spacing:.1em;color:var(--muted)}
@media(max-width:700px){.footer-inner{grid-template-columns:1fr}}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .whale-wrap{transform:none!important}
}

/* contact form */
.contact-side img{max-width:360px;width:100%;margin:0 auto 26px}
.contact-side .note{font-size:13px;color:var(--muted);margin-top:16px}
.contact-side .note .link-arrow{font-size:13px}
.field{display:grid;gap:6px;margin-bottom:16px}
.field label{font-size:13px;font-weight:700}
.req{display:inline-block;font-size:10px;font-weight:700;color:#fff;background:var(--primary-ink);border-radius:4px;padding:1px 6px;margin-left:6px;vertical-align:middle}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:8px;padding:12px 14px;transition:border-color .2s,box-shadow .2s}
.field textarea{resize:vertical;min-height:140px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,174,232,.2);background:#fff}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#d9534f}
.form-error{color:#c0392b;font-size:13px;margin:-4px 0 14px}
.contact-box .btn[disabled]{opacity:.6;pointer-events:none}
.contact-done{text-align:center}
.contact-done .lead{margin-bottom:22px}
.contact-grid{align-items:start}
@media(max-width:800px){.contact-side{order:1}}

/* products */
.products{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.product{display:grid;grid-template-columns:120px 1fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:transform .3s,box-shadow .3s;position:relative;overflow:hidden}
.product::before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--holo);background-size:100% 300%;animation:holo-shift 6s linear infinite}
.product:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.product img{width:120px;height:120px;object-fit:contain;border-radius:8px;background:var(--bg);padding:8px}
.product h3{font-size:18px;margin-bottom:4px}
.product .tag{font-size:12px;color:var(--primary-ink);font-weight:700;margin-bottom:8px}
.product p{font-size:14px;color:var(--muted)}
.product .link-arrow{display:inline-block;margin-top:10px}
@media(max-width:820px){.products{grid-template-columns:1fr}}
@media(max-width:480px){.product{grid-template-columns:1fr}.product img{width:96px;height:96px}}