:root{--ink:#091f33;--blue:#0d3d62;--accent:#f3b61f;--paper:#f3f6f8;--line:#c8d2da;--white:#fff;--muted:#516474;--radius:6px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--white);font-family:"Noto Sans JP",sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
.site-header{height:80px;display:flex;align-items:center;gap:34px;padding:0 clamp(20px,4vw,70px);border-bottom:1px solid rgba(9,31,51,.12);background:rgba(255,255,255,.94);backdrop-filter:blur(12px);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;margin-right:auto}
.brand img{display:block;width:auto;height:50px;max-width:min(360px,36vw);object-fit:contain;object-position:left center}
.site-header nav{display:flex;gap:24px;font-size:14px;font-weight:600}
.site-header nav a:hover{color:#b07800}
.header-cta{padding:11px 17px;background:var(--accent);font-size:14px;font-weight:700}
.menu{display:none;background:none;border:0}
.hero{min-height:calc(100vh - 80px);display:grid;grid-template-columns:1.02fr .98fr;overflow:hidden}
.hero-copy{padding:clamp(70px,8vw,130px) clamp(30px,7vw,110px);display:flex;flex-direction:column;justify-content:center;background:var(--paper);position:relative}
.hero-copy:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(9,31,51,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(9,31,51,.035) 1px,transparent 1px);background-size:28px 28px;pointer-events:none}
.hero-copy>*{position:relative}
.eyebrow{font:500 12px/1.4 "Roboto Mono",monospace;letter-spacing:.18em;color:#9b6900;text-transform:uppercase}
.hero h1{font-size:clamp(46px,6vw,88px);line-height:1.18;letter-spacing:-.05em;margin:20px 0 28px}
.hero h1 em{font-style:normal;color:var(--blue);position:relative}
.hero h1 em:after{content:"";height:8px;background:var(--accent);position:absolute;left:0;right:0;bottom:-4px}
.lead{max-width:660px;font-size:clamp(17px,1.6vw,21px);line-height:1.9;color:#334b5e}
.hero-actions{display:flex;gap:12px;margin:34px 0 18px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border:1px solid var(--ink);font-weight:700;cursor:pointer;border-radius:2px}
.btn.primary{background:var(--ink);color:white}
.btn.primary:hover{background:var(--blue)}
.btn.ghost{background:transparent}
.btn.ghost:hover{background:white}
.micro{font-size:12px;color:var(--muted)}
.hero-visual{position:relative;background:var(--ink);min-height:600px}
.hero-visual img{width:100%;height:100%;object-fit:cover;filter:saturate(.6) contrast(1.08);opacity:.83}
.hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(9,31,51,.15),rgba(9,31,51,.65))}
.metric-card{position:absolute;z-index:2;left:clamp(20px,5vw,70px);bottom:60px;background:var(--accent);padding:28px 34px;min-width:280px}
.metric-card span,.metric-card small{display:block;font-size:12px;font-family:"Roboto Mono",monospace;letter-spacing:.1em}
.metric-card strong{display:block;font-size:27px;line-height:1.4;margin:8px 0}
.grid-stamp{position:absolute;z-index:2;right:30px;top:35px;color:white;font:500 11px/2 "Roboto Mono",monospace;letter-spacing:.14em;text-align:right}
.problem-strip{background:var(--ink);color:white;padding:24px clamp(20px,5vw,76px);display:grid;grid-template-columns:280px 1fr;align-items:center;gap:30px}
.problem-strip p{font-weight:700}
.problem-strip div{display:flex;gap:10px;flex-wrap:wrap}
.problem-strip span{border:1px solid rgba(255,255,255,.25);padding:8px 14px;font-size:13px}
.section{padding:clamp(80px,10vw,150px) clamp(20px,6vw,96px)}
.section-head{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:end;margin-bottom:58px}
.section-head .eyebrow{grid-column:1/-1;margin:0}
.section h2{font-size:clamp(34px,4vw,58px);line-height:1.35;letter-spacing:-.04em;margin:10px 0}
.section-head>p:last-child{font-size:18px;color:var(--muted)}
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}
.solution-card{padding:36px;border-right:1px solid var(--line);position:relative}
.solution-card:last-child{border-right:0}
.solution-card.featured{background:var(--paper)}
.num{font:500 13px "Roboto Mono",monospace;color:#7990a2}
.tag{color:#9b6900;font-weight:700}
.solution-card h3{font-size:27px;line-height:1.55;margin:12px 0}
.solution-card>p:not(.tag){color:var(--muted)}
.solution-card ul{padding:0;list-style:none;margin:24px 0}
.solution-card li{padding:8px 0;border-bottom:1px solid var(--line);font-size:14px}
.solution-card a,.text-link{display:inline-block;margin-top:18px;border-bottom:2px solid var(--accent);font-weight:700}
.approach{background:var(--paper);display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(50px,9vw,140px)}
.approach-copy{position:sticky;top:130px;align-self:start}
.steps{list-style:none;margin:0;padding:0}
.steps li{display:grid;grid-template-columns:70px 1fr;gap:24px;padding:32px 0;border-top:1px solid var(--line)}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps span{width:52px;height:52px;border:1px solid var(--ink);display:grid;place-items:center;font:500 16px "Roboto Mono",monospace}
.steps h3{font-size:23px;margin:0 0 8px}
.steps p{margin:0;color:var(--muted)}
.cases{background:white}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case-grid article{padding:34px;background:var(--paper);border-top:5px solid var(--blue)}
.case-grid article>span{font-size:13px;color:#9b6900;font-weight:700}
.case-grid h3{font-size:23px;line-height:1.6}
.case-grid p{color:var(--muted)}
.case-grid b,.case-grid small{display:block}
.case-grid b{margin-top:25px;font-size:12px}
.case-grid small{color:var(--muted)}
.note{font-size:12px;color:var(--muted);margin-top:18px}
.partner{padding-top:0}
.partner-panel{background:var(--ink);color:white;padding:clamp(40px,7vw,90px);display:grid;grid-template-columns:1fr 1fr;gap:80px}
.partner-panel .eyebrow{color:var(--accent)}
.partner-panel p,.partner-panel li{color:#d9e3eb}
.partner-panel .btn.light{background:white;color:var(--ink);margin-top:20px}
.faq{background:var(--paper)}
.faq-list{max-width:920px;margin:auto}
.faq details{border-top:1px solid var(--line);padding:24px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{font-size:18px;font-weight:700;cursor:pointer}
.faq details p{color:var(--muted);padding-right:30px}
.diagnosis{display:grid;grid-template-columns:.9fr 1.1fr;background:var(--accent);padding:clamp(70px,9vw,130px) clamp(20px,8vw,130px);gap:clamp(50px,8vw,120px)}
.diagnosis-intro h2{font-size:clamp(38px,4vw,60px);line-height:1.35}
.contact-data{display:flex;flex-direction:column;border-top:1px solid rgba(9,31,51,.3);padding-top:22px;margin-top:35px}
.contact-data a{font:500 clamp(30px,4vw,52px) "Roboto Mono",monospace}
.diagnosis-form{background:white;padding:clamp(24px,4vw,50px);display:grid;gap:20px}
.diagnosis-form label,.diagnosis-form legend{font-weight:700;font-size:14px}
.diagnosis-form input,.diagnosis-form textarea{display:block;width:100%;border:1px solid #abb9c4;padding:13px 14px;margin-top:7px;background:#fafcfd}
.diagnosis-form fieldset{border:0;padding:0;margin:0}
.choices{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}
.choices label input{position:absolute;opacity:0}
.choices span{display:block;border:1px solid #abb9c4;padding:11px;text-align:center;cursor:pointer}
.choices input:checked+span{background:var(--ink);color:white;border-color:var(--ink)}
.submit{width:100%}
.diagnosis-form>small{text-align:center;color:var(--muted)}
footer{padding:50px clamp(20px,6vw,96px);background:#061522;color:#d5dee5;display:grid;grid-template-columns:1fr 1.5fr 1fr;gap:40px;font-size:13px}
.footer-brand{align-self:start;background:#fff;padding:10px 14px;width:max-content;max-width:100%}
.footer-brand img{height:54px;max-width:100%}
footer>div:nth-child(3){display:flex;flex-direction:column;gap:8px}
.copyright{grid-column:1/-1;border-top:1px solid #314352;padding-top:20px;margin:0}
.sub-hero{background:var(--paper);padding:clamp(72px,9vw,128px) clamp(20px,8vw,128px);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.sub-hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(9,31,51,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(9,31,51,.04) 1px,transparent 1px);background-size:30px 30px;pointer-events:none}
.sub-hero>*{position:relative;z-index:1}
.sub-hero h1{font-size:clamp(44px,6vw,78px);line-height:1.2;letter-spacing:-.05em;margin:16px 0 24px}
.sub-hero .lead{max-width:780px;margin:0}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:28px}
.breadcrumb a{border-bottom:1px solid var(--line)}
.content-page{padding:clamp(70px,9vw,130px) clamp(20px,8vw,128px)}
.content-grid{display:grid;grid-template-columns:minmax(190px,.34fr) minmax(0,1fr);gap:clamp(40px,9vw,130px);max-width:1200px;margin:0 auto}
.content-aside{position:sticky;top:120px;align-self:start}
.content-aside p{color:var(--muted);font-size:14px}
.content-main h2{font-size:clamp(27px,3vw,40px);line-height:1.4;margin:0 0 28px}
.content-main h3{font-size:22px;margin:48px 0 14px;padding-top:18px;border-top:1px solid var(--line)}
.content-main p,.content-main li{color:#334b5e}
.company-table{width:100%;border-collapse:collapse;margin:0 0 70px}
.company-table th,.company-table td{padding:18px 16px;border-top:1px solid var(--line);vertical-align:top;text-align:left}
.company-table th{width:190px;background:var(--paper);font-weight:700}
.company-table tr:last-child th,.company-table tr:last-child td{border-bottom:1px solid var(--line)}
.business-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:70px}
.business-list article{background:var(--paper);padding:26px;border-left:4px solid var(--blue)}
.business-list h3{border:0;margin:0 0 8px;padding:0;font-size:19px}
.business-list p{margin:0;font-size:14px}
.history{list-style:none;padding:0;margin:0 0 60px}
.history li{display:grid;grid-template-columns:150px 1fr;gap:30px;padding:18px 0;border-top:1px solid var(--line)}
.history time{font-family:"Roboto Mono",monospace;color:#9b6900;font-weight:600}
.policy-meta{font-size:13px;color:var(--muted);border-left:4px solid var(--accent);padding:8px 16px;margin-bottom:45px}
.policy-list{padding-left:1.4em}
.policy-list li{margin:8px 0}
.contact-box{background:var(--ink);color:white;padding:30px;margin-top:60px}
.contact-box p{color:#d9e3eb}
.contact-box a{color:white;border-bottom:2px solid var(--accent)}
dialog{width:min(660px,92vw);border:0;padding:40px;box-shadow:0 20px 80px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(2,16,27,.76)}
.dialog-close{position:absolute;right:16px;top:10px;border:0;background:none;font-size:30px;cursor:pointer}
.dialog-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:25px}
#confirmData{display:grid;grid-template-columns:120px 1fr;border-top:1px solid var(--line)}
#confirmData dt,#confirmData dd{margin:0;padding:10px;border-bottom:1px solid var(--line)}
#confirmData dt{font-weight:700}
.dialog-note{font-size:13px;color:var(--muted)}
.reveal{opacity:0;transform:translateY(18px);transition:.65s ease}
.reveal.visible{opacity:1;transform:none}
@media(max-width:980px){.site-header nav,.header-cta{display:none}
.menu{display:block}
.hero{grid-template-columns:1fr}
.hero-visual{min-height:480px}
.problem-strip,.section-head,.approach,.partner-panel,.diagnosis{grid-template-columns:1fr}
.solution-grid,.case-grid{grid-template-columns:1fr}
.solution-card{border-right:0;border-bottom:1px solid var(--line)}
.approach-copy{position:static}
.section-head{gap:10px}
.site-header.open nav{display:flex;position:absolute;top:80px;left:0;right:0;background:white;padding:20px;flex-direction:column;border-bottom:1px solid var(--line)}
footer{grid-template-columns:1fr}
.content-grid{grid-template-columns:1fr}
.content-aside{position:static}
.business-list{grid-template-columns:1fr}
.copyright{grid-column:auto}
}
@media(max-width:620px){.site-header{height:68px}
.brand img{height:40px;max-width:64vw}
.hero{min-height:auto}
.hero-copy{padding:70px 22px}
.hero h1{font-size:44px}
.hero-visual{min-height:420px}
.hero-actions{flex-direction:column}
.problem-strip{grid-template-columns:1fr}
.section{padding:75px 20px}
.section h2{font-size:36px}
.solution-card{padding:28px 22px}
.partner{padding-top:0}
.partner-panel{padding:42px 24px}
.diagnosis{padding:70px 20px}
.choices{grid-template-columns:1fr}
.dialog-actions{flex-direction:column}
footer{padding:45px 20px}
.company-table th,.company-table td{display:block;width:100%;padding:12px 14px}
.company-table th{border-top:1px solid var(--line)}
.company-table td{border-top:0}
.history li{grid-template-columns:1fr;gap:4px}
}