:root {
  --navy: #20354e;
  --ink: #293b4d;
  --muted: #50616d;
  --teal: #087b77;
  --mint: #d8f4f0;
  --surface: #f2f7f7;
  --border: #c9dcda;
  --yellow: #ffe879;
  --coral: #ff6c60;
  --font: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scrollbar-color: #7b969b #f2f7f7; }
body { margin: 0; color: var(--ink); background: #fff; font: 400 16px/1.9 var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; text-underline-offset: .22em; }
button { font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; height: auto; }
figure, h1, h2, h3, p { margin: 0; }
p + p { margin-top: 1em; }
h1, h2, h3 { color: var(--navy); font-weight: 800; overflow-wrap: anywhere; text-wrap: balance; }
h1 { line-height: 1.45; letter-spacing: -.025em; }
h2 { font-size: clamp(27px, 2.9vw, 38px); line-height: 1.55; letter-spacing: -.025em; }
h3 { font-size: 22px; line-height: 1.6; }
h3 + p { margin-top: 12px; }
p + h3 { margin-top: 30px; }
::selection { background: var(--yellow); color: var(--navy); }
:focus-visible { outline: 3px solid var(--teal); outline-offset: 5px; }
section[id], #main { scroll-margin-top: 110px; }
.wrap { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -100px; padding: 12px 20px; background: #fff; z-index: 110; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 100; background: #fff; border-bottom: 1px solid #e5eeed; }
.header-inner { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-block; width: 192px; flex-shrink: 0; }
.brand img { width: 100%; height: auto; }
#primary-nav { display: flex; align-items: center; gap: 26px; }
#primary-nav a { font-size: 14px; font-weight: 700; white-space: nowrap; transition: color .2s, background .2s; }
#primary-nav a:hover, #primary-nav a[aria-current="page"] { color: var(--teal); }
#primary-nav .nav-contact { background: var(--navy); color: #fff; padding: 12px 18px; border-radius: 8px; }
#primary-nav .nav-contact:hover, #primary-nav .nav-contact[aria-current="page"] { background: var(--teal); color: #fff; }
.menu-toggle { display: none; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; padding: 15px 24px; min-height: 56px; background: var(--navy); color: #fff; border-radius: 8px; font-size: 15px; font-weight: 700; transition: background .2s; }
.button:hover { background: var(--teal); }
.arrow { width: 22px; height: 22px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.text-link, .entry-link { display: inline-flex; gap: 20px; align-items: center; font-size: 15px; font-weight: 700; color: var(--navy); }
.text-link:hover { color: var(--teal); }
.text-link:hover .arrow, a:hover .entry-link .arrow { transform: translateX(4px); }
.arrow { transition: transform .2s ease-out; }
.home-hero { background: var(--mint); padding: 80px 0 66px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 36px; align-items: center; }
.home-hero h1 { font-size: clamp(34px, 3.5vw, 50px); }
.home-hero h1 span { color: var(--teal); }
.hero-lead { margin-top: 24px; font-size: 17px; line-height: 2; }
.actions { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; margin-top: 34px; }
.hero-diagram { padding-top: 6px; }
.hero-diagram img { width: 100%; border-radius: 12px; }
.hero-diagram figcaption { display: flex; justify-content: space-between; gap: 12px; margin-top: 20px; font-size: 14px; font-weight: 700; }
.notice-bar { display: flex; align-items: baseline; gap: 25px; padding-top: 28px; padding-bottom: 28px; border-bottom: 1px solid var(--border); font-size: 14px; }
.notice-label { color: var(--teal); font-weight: 700; }
.notice-bar time { color: var(--muted); font-variant-numeric: tabular-nums; }
.section { padding: 88px 0; }
.mint { background: var(--mint); }
.surface { background: var(--surface); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 44px; }
.section-intro { color: var(--muted); font-size: 16px; }
.service-list { display: grid; gap: 28px; }
.service-entry { display: grid; grid-template-columns: 1fr 1.05fr; gap: 54px; align-items: center; padding: 40px 44px; background: var(--surface); border-radius: 16px; transition: background .2s; }
.service-entry:nth-child(2) { background: var(--mint); }
.service-entry:hover { background: #e7f1f0; }
.service-entry:nth-child(2):hover { background: #c8ebe6; }
.service-entry h3 { font-size: 30px; margin-top: 15px; }
.service-summary > p:not(.tag) { margin-top: 18px; }
.entry-link { margin-top: 26px; }
.service-entry figure img { border-radius: 8px; width: 100%; }
.tag { font-size: 14px; font-weight: 700; color: var(--teal); }
.status { display: inline-block; padding: 2px 9px; margin-left: 9px; color: var(--navy); background: var(--yellow); border-radius: 4px; font-size: 12px; }
.approach-grid, .split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.body-lead { font-size: 18px; line-height: 2; margin-top: 23px; }
.body-lead + p { margin-top: 19px; }
.approach-grid .text-link { margin-top: 26px; }
.process-list { display: grid; }
.process-list > div { position: relative; display: grid; grid-template-columns: 50px 1fr; column-gap: 16px; padding: 23px 0; border-bottom: 1px solid #a7d3cd; }
.process-list > div:first-child { padding-top: 0; }
.process-list > div:last-child { border: 0; padding-bottom: 0; }
.process-list span { grid-row: span 2; color: var(--teal); font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.process-list h3 { font-size: 21px; }
.process-list p { margin-top: 7px; font-size: 15px; }
.article-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 32px; }
.article-card { min-width: 0; }
.article-card > a { display: block; }
.article-card figure { background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.article-card img { width: 100%; aspect-ratio: 16/9; object-fit: contain; }
.article-card-copy { padding: 22px 0 0; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: baseline; color: var(--muted); font-size: 13px; }
.article-meta > span:first-child { font-weight: 700; color: var(--teal); }
.article-meta time { font-variant-numeric: tabular-nums; }
.article-card h3 { margin-top: 12px; font-size: 21px; }
.article-card p { margin-top: 12px; color: var(--muted); font-size: 14px; }
.article-card .entry-link { margin-top: 17px; font-size: 14px; }
.article-card a:hover h3 { color: var(--teal); }
.contact-band { padding: 58px 0; color: #fff; background: var(--navy); }
.contact-band .wrap { display: flex; justify-content: space-between; align-items: center; gap: 36px; }
.contact-band h2 { color: #fff; font-size: 29px; }
.contact-band p { color: #d5e5ea; margin-top: 14px; font-size: 15px; }
.button.light { background: #fff; color: var(--navy); flex-shrink: 0; }
.button.light:hover { background: var(--mint); }
.site-footer { background: #fff; padding: 54px 0 22px; font-size: 14px; }
.footer-main { display: flex; justify-content: space-between; gap: 42px; }
.footer-main p { margin-top: 18px; }
.footer-main > div > a:last-child { display: inline-block; margin-top: 12px; color: var(--teal); }
.footer-main nav { display: grid; grid-template-columns: auto auto; gap: 15px 40px; align-content: start; }
.footer-main nav a:hover { color: var(--teal); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--border); padding-top: 22px; margin-top: 45px; font-size: 12px; color: var(--muted); }
.breadcrumbs { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; padding-top: 20px; padding-bottom: 20px; font-size: 12px; color: var(--muted); }
.breadcrumbs a:hover { color: var(--teal); text-decoration: underline; }
.page-heading { background: var(--mint); padding: 48px 0; }
.page-heading h1 { font-size: clamp(31px, 3.7vw, 46px); }
.page-heading p { margin-top: 16px; font-size: 17px; }
.diagram img { width: 100%; border-radius: 12px; }
.pilot-block { display: grid; grid-template-columns: .85fr 1.4fr; gap: 68px; }
.pilot-title .body-lead { max-width: 30em; }
.week-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 32px 38px; }
.week-list li { border-top: 2px solid var(--teal); padding-top: 17px; }
.week-list span { color: var(--teal); font-size: 14px; font-weight: 700; }
.week-list h3 { margin-top: 6px; font-size: 21px; }
.week-list p { margin-top: 10px; font-size: 15px; }
.detail-list { margin: 0; }
.detail-list > div { display: grid; grid-template-columns: 145px 1fr; gap: 26px; padding: 22px 0; border-top: 1px solid var(--border); }
.detail-list > div:last-child { border-bottom: 1px solid var(--border); }
.detail-list dt { color: var(--navy); font-weight: 700; }
.detail-list dd { margin: 0; }
.detail-list a { color: var(--teal); text-decoration: underline; }
.compact { margin-top: 34px; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px 56px; }
.feature-grid article { padding-top: 24px; border-top: 1px solid #9ecac4; }
.feature-grid p { margin-top: 12px; }
.work-example { display: grid; grid-template-columns: .8fr 1.5fr; gap: 54px; background: var(--surface); padding: 38px; border-radius: 16px; }
.work-example-title span { font-size: 14px; color: var(--teal); }
.work-example-title h3 { font-size: 28px; margin-top: 17px; }
.work-example-title p { margin-top: 18px; }
.work-example .detail-list > div { grid-template-columns: 145px 1fr; }
.below-link { margin-top: 28px; }
.demo-callout { display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.demo-callout > div { max-width: 730px; }
.demo-callout h2 { margin: 12px 0 18px; }
.demo-callout .button { flex-shrink: 0; }
.small { font-size: 14px; color: var(--muted); }
.about-intro { display: grid; grid-template-columns: 1fr 1.05fr; gap: 70px; }
.contact-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: start; }
.mail-panel { padding: 38px; background: var(--mint); border-radius: 16px; }
.mail-address { display: block; font-size: clamp(21px, 2.5vw, 32px); font-weight: 700; color: var(--navy); overflow-wrap: anywhere; }
.mail-panel > p { margin-top: 16px; }
.mail-panel .button { margin-top: 28px; }
.mail-panel .small { margin-top: 23px; }
.article-index { padding-top: 62px; }
.article-heading { padding-top: 36px; padding-bottom: 50px; }
.article-heading h1 { max-width: 24em; font-size: clamp(28px, 3.3vw, 42px); margin-top: 22px; }
.article-intro { max-width: 47em; font-size: 18px; margin-top: 25px; }
.article-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 70px; align-items: start; padding-bottom: 80px; }
.article-toc { position: sticky; top: 118px; border-top: 2px solid var(--teal); padding-top: 18px; }
.article-toc h2 { font-size: 17px; margin-bottom: 15px; }
.article-toc a { display: block; color: var(--muted); font-size: 14px; line-height: 1.8; padding: 9px 0; }
.article-toc a:hover { color: var(--teal); text-decoration: underline; }
.article-body { max-width: 740px; min-width: 0; }
.article-body p { line-height: 2.05; }
.article-body h2 { font-size: 27px; margin-bottom: 22px; }
.article-body h3 { font-size: 21px; margin: 30px 0 16px; }
.article-body section { margin-top: 54px; }
.article-body a { color: var(--teal); text-decoration: underline; overflow-wrap: anywhere; }
.article-body li { padding: 5px 0; }
.article-body ul, .article-body ol { padding-left: 1.5em; }
.article-figure { background: #fff; }
.article-figure img { width: 100%; border: 1px solid var(--border); border-radius: 12px; }
.article-figure figcaption { margin-top: 12px; color: var(--muted); font-size: 13px; }
.table-wrap { overflow-x: auto; margin: 26px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; font-variant-numeric: tabular-nums; }
th { text-align: left; color: var(--navy); background: var(--mint); }
th, td { padding: 14px 17px; border-bottom: 1px solid var(--border); vertical-align: top; }
.article-body pre { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--surface); border-radius: 12px; padding: 24px; font: 14px/1.9 var(--font); }
.sources { border-top: 1px solid var(--border); padding-top: 32px; }
.article-service { padding-top: 60px; padding-bottom: 60px; }
.article-service h2 { font-size: 26px; }
.article-service p { margin-top: 17px; }
.article-service .text-link { margin-top: 22px; }
@media (max-width: 1079px) {
 .header-inner { min-height: 76px; }
 .brand { width: 168px; }
 .menu-toggle { display: flex; align-items: center; gap: 14px; border: 0; padding: 12px 0 12px 12px; color: var(--navy); background: transparent; font-size: 13px; font-weight: 700; }
 .menu-lines { width: 23px; height: 14px; border-top: 2px solid currentColor; border-bottom: 2px solid currentColor; transition: transform .2s; }
 .nav-open .menu-lines { transform: rotate(-45deg); }
 #primary-nav { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: #fff; border-bottom: 1px solid var(--border); padding: 20px 32px 32px; max-height: calc(100dvh - 76px); overflow-y: auto; }
 .nav-open #primary-nav { display: grid; gap: 0; }
 #primary-nav a { padding: 17px 0; border-bottom: 1px solid #e5eeed; }
 #primary-nav .nav-contact { margin-top: 20px; padding: 15px 18px; border: 0; }
 .hero-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
 .home-hero h1 { font-size: clamp(30px, 4vw, 43px); }
 .hero-lead { font-size: 15px; }
 .hero-lead br { display: none; }
 .hero-diagram figcaption { font-size: 12px; gap: 8px; }
 .actions { gap: 18px; }
 .service-entry { padding: 30px; gap: 35px; }
 .approach-grid, .split, .about-intro, .contact-layout { gap: 40px; }
 .pilot-block { gap: 40px; }
 .article-grid { gap: 24px; }
 .article-card h3 { font-size: 19px; }
 .detail-list > div, .work-example .detail-list > div { grid-template-columns: 1fr; gap: 8px; }
 .demo-callout { align-items: start; flex-direction: column; gap: 28px; }
 .article-layout { grid-template-columns: 230px minmax(0,1fr); gap: 36px; }
}
@media (max-width: 720px) {
 body { font-size: 15px; }
 .wrap { width: calc(100% - 40px); }
 .home-hero { padding: 42px 0 35px; }
 .hero-grid { grid-template-columns: 1fr; gap: 38px; }
 .home-hero h1 { font-size: clamp(28px, 7.9vw, 42px); }
 .hero-lead { font-size: 16px; margin-top: 20px; }
 .hero-diagram figcaption { font-size: 12px; margin-top: 16px; }
 .actions { gap: 24px; margin-top: 25px; }
 .actions .text-link { font-size: 14px; }
 .notice-bar { flex-wrap: wrap; gap: 8px 19px; padding-top: 22px; padding-bottom: 22px; }
 .notice-bar p { flex-basis: 100%; }
 .section { padding: 56px 0; }
 .section-head { align-items: start; flex-direction: column; gap: 22px; margin-bottom: 30px; }
 .section-head h2 { font-size: 28px; }
 .section-intro br { display: none; }
 .service-list { gap: 22px; }
 .service-entry { grid-template-columns: 1fr; padding: 28px 24px; gap: 28px; }
 .service-entry h3 { font-size: 27px; }
 .entry-link { gap: 14px; font-size: 14px; }
 .approach-grid, .split, .about-intro, .pilot-block, .contact-layout { grid-template-columns: 1fr; gap: 34px; }
 .body-lead { font-size: 17px; }
 .process-list p { font-size: 14px; }
 .article-grid { grid-template-columns: 1fr; gap: 38px; }
 .article-card h3 { font-size: 21px; }
 .article-card-copy { padding-top: 18px; }
 .contact-band { padding: 42px 0; }
 .contact-band .wrap { flex-direction: column; align-items: start; gap: 27px; }
 .contact-band h2 { font-size: 25px; }
 .footer-main { flex-direction: column; gap: 36px; }
 .footer-main nav { gap: 16px 24px; }
 .footer-bottom { flex-direction: column; gap: 10px; margin-top: 36px; }
 .site-footer { padding-top: 40px; }
 .breadcrumbs { padding-top: 16px; padding-bottom: 16px; gap: 9px; font-size: 11px; }
 .page-heading { padding: 32px 0; }
 .page-heading h1 { font-size: 30px; }
 .page-heading p { font-size: 15px; }
 .week-list { gap: 30px; grid-template-columns: 1fr; }
 .detail-list > div { padding: 19px 0; }
 .feature-grid { grid-template-columns: 1fr; gap: 27px; }
 .work-example { grid-template-columns: 1fr; gap: 24px; padding: 26px 22px; }
 .work-example-title h3 { font-size: 25px; }
 .demo-callout .button { max-width: 100%; gap: 16px; }
 .mail-panel { padding: 27px 23px; }
 .mail-address { font-size: 25px; }
 .article-heading { padding-top: 28px; padding-bottom: 32px; }
 .article-heading h1 { font-size: 28px; line-height: 1.6; }
 .article-intro { font-size: 16px; margin-top: 20px; }
 .article-layout { display: flex; flex-direction: column; gap: 32px; padding-bottom: 56px; }
 .article-toc { position: static; width: 100%; }
 .article-toc a { padding: 7px 0; }
 .article-body { width: 100%; }
 .article-body h2 { font-size: 23px; margin-bottom: 18px; }
 .article-body section { margin-top: 38px; }
 .article-body pre { padding: 19px; font-size: 13px; }
 th, td { padding: 12px; }
 .small { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after { transition: none !important; }
}

.keep { display: inline-block; max-width: 100%; }
.page-heading .status { vertical-align: middle; letter-spacing: normal; font-size: 13px; padding: 4px 11px; }