:root {
  --navy: #0b1f33;
  --navy-2: #102a43;
  --navy-3: #173b5f;
  --orange: #f59e0b;
  --orange-2: #ffb629;
  --cream: #f7f4ed;
  --paper: #ffffff;
  --ink: #17212b;
  --muted: #617080;
  --line: #d9e0e6;
  --shadow: 0 22px 55px rgba(8, 29, 48, .14);
  --radius: 18px;
  --container: min(1160px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
.container { width: var(--container); margin-inline: auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 9999;
  background: #fff; color: var(--navy); padding: 12px 18px; border-radius: 8px;
}
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(11,31,51,.08);
}
.header-inner { height: 78px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 42px; height: 42px; display: grid; place-items: center;
  background: var(--navy); color: var(--orange); font-weight: 900; font-size: 23px;
  border-radius: 9px 2px 9px 2px; transform: skew(-5deg);
}
.brand-text { display: grid; line-height: 1.1; }
.brand-text strong { font-size: 16px; font-weight: 900; letter-spacing: .06em; }
.brand-text small { margin-top: 5px; font-size: 9px; color: var(--muted); letter-spacing: .15em; }
.global-nav { display: flex; align-items: center; gap: 27px; font-size: 14px; font-weight: 700; }
.global-nav > a:not(.nav-cta) { position: relative; }
.global-nav > a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px;
  background: var(--orange); transition: right .25s ease;
}
.global-nav > a:hover::after { right: 0; }
.nav-cta { background: var(--navy); color: #fff; padding: 11px 18px; border-radius: 999px; }
.menu-button { display: none; width: 46px; height: 46px; border: 0; background: transparent; padding: 10px; }
.menu-button span:not(.sr-only) { display: block; height: 2px; background: var(--navy); margin: 6px 0; transition: .25s; }

.hero {
  position: relative; overflow: hidden; min-height: 720px; display: grid; align-items: center;
  color: #fff; background:
    radial-gradient(circle at 80% 15%, rgba(245,158,11,.19), transparent 24%),
    linear-gradient(120deg, #071725 0%, #0b1f33 52%, #133b5b 100%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .13;
  background-image: linear-gradient(rgba(255,255,255,.2) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.2) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to right, transparent, #000 40%);
}
.hero-shape { position: absolute; border: 1px solid rgba(255,255,255,.12); transform: rotate(35deg); }
.hero-shape-one { width: 480px; height: 480px; right: -210px; top: -210px; }
.hero-shape-two { width: 380px; height: 380px; left: -260px; bottom: -220px; }
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.25fr .75fr; gap: 70px; align-items: center; padding-block: 90px; }
.eyebrow { margin: 0 0 14px; color: var(--orange-2); font-size: 13px; font-weight: 900; letter-spacing: .18em; text-transform: uppercase; }
.hero .eyebrow { white-space: nowrap; }
.hero h1 { margin: 0; font-size: clamp(24px, 4vw, 52px); line-height: 1.25; letter-spacing: -.035em; font-weight: 900; }
.hero h1 .hero-line { display: block; white-space: nowrap; color: inherit; }
.hero h1 .hero-accent { color: var(--orange-2); }
.hero-lead { margin: 27px 0 0; color: #d9e5ef; font-size: 17px; line-height: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 34px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 25px;
  border-radius: 8px; border: 1px solid transparent; font-weight: 800; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--orange); color: #18212a; box-shadow: 0 12px 30px rgba(245,158,11,.22); }
.button-primary:hover { background: var(--orange-2); }
.button-ghost { border-color: rgba(255,255,255,.35); color: #fff; background: rgba(255,255,255,.06); }
.hero-points { display: flex; flex-wrap: wrap; gap: 20px; margin: 30px 0 0; padding: 0; list-style: none; color: #d9e5ef; font-size: 13px; font-weight: 600; }
.hero-points li::before { content: "✓"; margin-right: 7px; color: var(--orange-2); font-weight: 900; }
.hero-panel { position: relative; }
.panel-label { margin: 0 0 10px 8px; color: rgba(255,255,255,.5); letter-spacing: .24em; font-size: 11px; }
.blueprint-card {
  position: relative; aspect-ratio: .82; overflow: hidden; padding: 23px;
  border: 1px solid rgba(255,255,255,.25); border-radius: 6px;
  background: linear-gradient(145deg, rgba(32,92,129,.7), rgba(10,39,61,.55));
  box-shadow: 28px 30px 0 rgba(245,158,11,.9), 0 30px 65px rgba(0,0,0,.3);
}
.blueprint-card::before, .blueprint-card::after {
  content: ""; position: absolute; background: rgba(255,255,255,.14);
}
.blueprint-card::before { width: 1px; top: 0; bottom: 0; left: 58%; }
.blueprint-card::after { height: 1px; left: 0; right: 0; top: 62%; }
.blueprint-header, .blueprint-footer { position: relative; z-index: 2; display: flex; justify-content: space-between; color: rgba(255,255,255,.65); font-size: 10px; letter-spacing: .14em; }
.blueprint-lines { position: absolute; inset: 76px 23px 83px; border: 1px solid rgba(255,255,255,.2); }
.blueprint-lines span { position: absolute; height: 1px; background: rgba(255,255,255,.2); transform-origin: left center; }
.blueprint-lines span:nth-child(1) { width: 72%; left: 8%; top: 24%; transform: rotate(32deg); }
.blueprint-lines span:nth-child(2) { width: 64%; left: 22%; top: 32%; transform: rotate(118deg); }
.blueprint-lines span:nth-child(3) { width: 80%; left: 4%; top: 72%; transform: rotate(-20deg); }
.blueprint-lines span:nth-child(4) { width: 55%; left: 24%; top: 55%; transform: rotate(12deg); }
.blueprint-lines span:nth-child(5) { width: 45%; left: 36%; top: 13%; transform: rotate(82deg); }
.blueprint-center { position: absolute; z-index: 3; left: 42px; bottom: 102px; }
.blueprint-number { display: block; color: var(--orange-2); font-size: 13px; font-weight: 900; letter-spacing: .2em; }
.blueprint-center strong { display: block; margin-top: 6px; font-size: clamp(23px, 2.2vw, 33px); line-height: 1.4; }
.blueprint-footer { position: absolute; left: 23px; right: 23px; bottom: 23px; }
.panel-note { margin: 22px 0 0 28px; color: #c7d7e4; font-size: 12px; }

.trust-strip { background: var(--orange); color: #151c24; }
.trust-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.trust-grid > div { padding: 24px 20px; border-right: 1px solid rgba(10,30,50,.18); }
.trust-grid > div:first-child { border-left: 1px solid rgba(10,30,50,.18); }
.trust-grid strong, .trust-grid span { display: block; }
.trust-grid strong { font-size: 17px; font-weight: 900; }
.trust-grid span { margin-top: 3px; font-size: 11px; font-weight: 600; opacity: .7; }

.section { padding: 110px 0; }
.section-heading { max-width: 700px; margin-bottom: 46px; }
.section-heading h2 { margin: 0; color: var(--navy); font-size: clamp(31px,4vw,47px); line-height: 1.35; letter-spacing: -.035em; }
.section-heading > p:last-child { color: var(--muted); margin: 17px 0 0; font-size: 16px; }
.section-problems { background: var(--cream); }
.problem-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.problem-card { position: relative; background: #fff; padding: 32px; border-radius: var(--radius); box-shadow: 0 15px 45px rgba(18,43,64,.07); border: 1px solid rgba(11,31,51,.06); }
.card-no { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: var(--navy); color: var(--orange); font-weight: 900; font-size: 12px; }
.problem-card h3 { margin: 22px 0 10px; font-size: 20px; color: var(--navy); }
.problem-card p { margin: 0; color: var(--muted); font-size: 14px; }

.section-service { background: var(--navy); position: relative; overflow: hidden; }
.section-service::after { content: "SERVICE"; position: absolute; right: -30px; top: 35px; color: rgba(255,255,255,.025); font-size: 170px; font-weight: 900; letter-spacing: -.06em; }
.heading-light { position: relative; z-index: 1; }
.heading-light h2 { color: #fff; }
.heading-light > p:last-child { color: #b9cad8; }
.service-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.service-card { min-height: 315px; padding: 32px; color: #fff; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.11); border-radius: 14px; transition: transform .25s, background .25s, border-color .25s; }
.service-card:hover { transform: translateY(-6px); background: rgba(255,255,255,.085); border-color: rgba(245,158,11,.6); }
.service-icon { color: var(--orange-2); font-size: 12px; font-weight: 900; letter-spacing: .2em; }
.service-card h3 { margin: 19px 0 20px; font-size: 22px; }
.service-card ul { margin: 0; padding: 0; list-style: none; color: #cbd9e4; font-size: 14px; }
.service-card li { padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
.service-card li::before { content: "/"; margin-right: 9px; color: var(--orange); font-weight: 900; }

.section-works { background: #fff; }
.works-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: center; }
.work-tags { display: flex; flex-wrap: wrap; gap: 13px; }
.work-tags span { padding: 14px 20px; border: 1px solid var(--line); border-radius: 999px; color: var(--navy); font-size: 14px; font-weight: 800; background: #fff; box-shadow: 0 8px 22px rgba(11,31,51,.05); }
.work-tags span:nth-child(3n+1) { transform: translateY(-7px); }

.section-strength { background: var(--cream); }
.strength-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 25px; }
.strength-card { padding: 38px 33px; border-left: 4px solid var(--orange); background: #fff; box-shadow: var(--shadow); }
.strength-number { color: var(--orange); font-size: 12px; font-weight: 900; letter-spacing: .2em; }
.strength-card h3 { margin: 20px 0 13px; color: var(--navy); font-size: 22px; }
.strength-card p { margin: 0; color: var(--muted); font-size: 14px; }

.section-flow { background: #fff; }
.flow-list { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin: 0; padding: 0; list-style: none; counter-reset: flow; }
.flow-list li { position: relative; padding: 0 24px; }
.flow-list li:first-child { padding-left: 0; }
.flow-list li:last-child { padding-right: 0; }
.flow-list li:not(:last-child)::after { content: "→"; position: absolute; right: -8px; top: 19px; color: var(--orange); font-size: 24px; font-weight: 900; }
.flow-list > li > span { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 50%; background: var(--navy); color: var(--orange); font-weight: 900; }
.flow-list h3 { margin: 20px 0 8px; color: var(--navy); font-size: 19px; }
.flow-list p { margin: 0; color: var(--muted); font-size: 13px; }

.section-area { background: var(--navy); color: #fff; overflow: hidden; }
.area-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 85px; align-items: center; }
.area-map { position: relative; aspect-ratio: 1; border-radius: 50%; border: 1px solid rgba(255,255,255,.15); background: radial-gradient(circle, rgba(245,158,11,.14), transparent 60%); display: grid; place-items: center; }
.area-map::before, .area-map::after { content: ""; position: absolute; background: rgba(255,255,255,.12); }
.area-map::before { width: 1px; height: 118%; }
.area-map::after { width: 118%; height: 1px; }
.map-ring { position: absolute; border: 1px solid rgba(255,255,255,.13); border-radius: 50%; }
.ring-one { inset: 12%; }.ring-two { inset: 27%; }.ring-three { inset: 41%; }
.map-pin { position: relative; z-index: 2; width: 52px; height: 52px; display: grid; place-items: center; background: var(--orange); border-radius: 50% 50% 50% 8px; transform: rotate(-45deg); box-shadow: 0 0 0 13px rgba(245,158,11,.13); }
.map-pin span { width: 16px; height: 16px; background: var(--navy); border-radius: 50%; }
.area-map p { position: absolute; bottom: 13%; letter-spacing: .28em; font-weight: 900; font-size: 12px; color: rgba(255,255,255,.65); }
.area-copy h2 { margin: 0; font-size: clamp(31px,4vw,47px); line-height: 1.35; }
.area-copy > p:not(.eyebrow):not(.area-note) { color: #c7d6e2; }
.area-copy dl { margin: 34px 0 0; }
.area-copy dl > div { display: grid; grid-template-columns: 125px 1fr; padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.area-copy dt { color: var(--orange-2); font-weight: 800; font-size: 13px; }
.area-copy dd { margin: 0; color: #e0e9f0; font-size: 14px; }
.area-note { color: #95aabd; font-size: 12px; }

.section-faq { background: var(--cream); }
.faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 75px; }
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: 12px; margin-bottom: 13px; overflow: hidden; }
.faq-list summary { position: relative; cursor: pointer; padding: 22px 60px 22px 24px; color: var(--navy); font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); color: var(--orange); font-size: 25px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 0; padding: 0 24px 23px; color: var(--muted); font-size: 14px; }

.contact-section { padding: 110px 0; background: linear-gradient(135deg, #0b1f33, #174364); color: #fff; }
.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 72px; align-items: start; }
.contact-copy h2 { margin: 0; font-size: clamp(33px,4vw,49px); line-height: 1.4; }
.contact-copy > p:not(.eyebrow) { color: #c7d5e0; }
.contact-info { display: grid; gap: 10px; margin-top: 30px; }
.contact-info a { padding: 16px 18px; border: 1px solid rgba(255,255,255,.16); border-radius: 10px; background: rgba(255,255,255,.05); }
.contact-info small, .contact-info strong { display: block; }
.contact-info small { color: #aebfce; font-size: 11px; }
.contact-info strong { color: var(--orange-2); margin-top: 3px; font-size: 19px; }
.company-details { display: grid; gap: 9px; margin-top: 14px; }
.company-details p { margin: 0; padding: 13px 18px; border: 1px solid rgba(255,255,255,.13); border-radius: 10px; background: rgba(255,255,255,.035); }
.company-details span, .company-details strong { display: block; }
.company-details span { color: #aebfce; font-size: 11px; }
.company-details strong { margin-top: 2px; color: #fff; font-size: 14px; font-weight: 700; }
.contact-form { background: #fff; color: var(--ink); padding: 34px; border-radius: var(--radius); box-shadow: 0 30px 70px rgba(0,0,0,.22); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.contact-form label { display: block; margin-bottom: 17px; color: var(--navy); font-size: 13px; font-weight: 800; }
.contact-form label span { margin-left: 8px; padding: 2px 6px; border-radius: 4px; background: #fff0da; color: #b15c00; font-size: 9px; }
.contact-form input, .contact-form textarea { width: 100%; margin-top: 7px; padding: 13px 14px; border: 1px solid #cdd7df; border-radius: 8px; background: #fbfcfd; color: var(--ink); outline: none; transition: border .2s, box-shadow .2s; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(245,158,11,.13); }
.form-submit { width: 100%; border: 0; }
.form-note { margin: 11px 0 0; text-align: center; color: var(--muted); font-size: 11px; }

.site-footer { padding: 55px 0 20px; background: #06131f; color: #adbecb; }
.footer-inner { display: grid; grid-template-columns: 1.1fr 1fr .8fr; gap: 45px; align-items: start; }
.footer-brand strong { color: #fff; font-size: 21px; }
.footer-brand p, .footer-data p { margin: 7px 0; font-size: 12px; }
.site-footer nav { display: grid; gap: 8px; font-size: 12px; }
.site-footer nav a:hover { color: var(--orange-2); }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 38px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.1); font-size: 11px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .08s; }.delay-2 { transition-delay: .16s; }.delay-3 { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 900px) {
  :root { --container: min(100% - 30px, 720px); }
  .site-header { z-index: 3000; }
  .menu-button { display: block; position: relative; z-index: 3002; }
  .global-nav {
    position: fixed;
    top: 78px; right: 0; bottom: 0; left: auto;
    width: min(86vw, 380px);
    height: calc(100dvh - 78px);
    padding: 24px 26px 40px;
    background: #06131f;
    color: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    box-shadow: -18px 0 46px rgba(0,0,0,.28);
    transform: translateX(110%);
    transition: transform .28s ease;
    z-index: 3001;
  }
  .global-nav.open { transform: translateX(0); }
  .global-nav a { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.12); font-size: 18px; }
  .nav-cta { background: transparent; border-radius: 0; }
  .nav-backdrop {
    position: fixed;
    top: 78px; right: 0; bottom: 0; left: 0;
    background: rgba(3,12,20,.62);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .28s ease, visibility .28s ease;
    z-index: 2990;
  }
  .nav-backdrop.open { opacity: 1; visibility: visible; pointer-events: auto; }
  body.menu-open { overflow: hidden; touch-action: none; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); background: var(--navy); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); background: var(--navy); }
  .hero { min-height: auto; }
  .hero-inner, .works-layout, .area-layout, .faq-layout, .contact-layout { grid-template-columns: 1fr; }
  .hero-inner { padding-block: 78px; gap: 70px; }
  .hero-panel { max-width: 440px; margin-inline: auto; width: 82%; }
  .problem-grid, .service-grid, .strength-grid { grid-template-columns: repeat(2,1fr); }
  .trust-grid { grid-template-columns: repeat(2,1fr); }
  .flow-list { grid-template-columns: repeat(2,1fr); gap: 36px 0; }
  .flow-list li:nth-child(2)::after { display: none; }
  .section { padding: 85px 0; }
  .area-map { max-width: 460px; margin-inline: auto; width: 85%; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  :root { --container: calc(100% - 28px); }
  .header-inner { height: 68px; }
  .global-nav { top: 68px; height: calc(100dvh - 68px); width: min(88vw, 360px); padding: 20px 22px 36px; }
  .nav-backdrop { top: 68px; }
  .brand-text small { display: none; }
  .hero-inner { padding-block: 60px 82px; }
  .hero h1 { font-size: clamp(24px, 7.2vw, 34px); }
  .hero-lead { font-size: 14px; }
  .hero-actions, .hero-actions .button { width: 100%; }
  .hero-points { gap: 8px 15px; }
  .hero-panel { width: 86%; }
  .blueprint-card { padding: 18px; }
  .blueprint-center { left: 30px; bottom: 88px; }
  .blueprint-footer { left: 18px; right: 18px; bottom: 18px; }
  .panel-note { margin-left: 0; }
  .trust-grid, .problem-grid, .service-grid, .strength-grid, .flow-list, .form-row, .footer-inner { grid-template-columns: 1fr; }
  .trust-grid > div { padding: 17px 14px; border-left: 1px solid rgba(10,30,50,.18); border-bottom: 1px solid rgba(10,30,50,.18); }
  .section { padding: 72px 0; }
  .section-heading { margin-bottom: 33px; }
  .section-heading h2, .area-copy h2, .contact-copy h2 { font-size: 31px; }
  .problem-card, .service-card, .strength-card { padding: 26px; }
  .service-card { min-height: auto; }
  .works-layout, .area-layout, .faq-layout, .contact-layout { gap: 40px; }
  .flow-list { gap: 29px; }
  .flow-list li { padding: 0; display: grid; grid-template-columns: 55px 1fr; gap: 16px; }
  .flow-list li:not(:last-child)::after { display: none; }
  .flow-list > li > span { width: 52px; height: 52px; }
  .flow-list h3 { margin-top: 0; }
  .area-copy dl > div { grid-template-columns: 1fr; gap: 5px; }
  .area-map { width: 90%; }
  .contact-form { padding: 24px 18px; }
  .footer-bottom { flex-direction: column; gap: 10px; }
}