:root {
  --navy: #0b1b2b;
  --deep-navy: #06131f;
  --orange: #f26522;
  --ink: #18222c;
  --muted: #6f7880;
  --paper: #f4f1eb;
  --line: #d9d7d0;
  --sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --latin: Inter, Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin-top: 0; }
.section-shell { width: min(100% - 64px, 1240px); margin-inline: auto; }

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  width: 100%;
  height: 96px;
  padding: 0 4vw;
  color: #fff;
  border-bottom: 1px solid #ffffff24;
}
.brand { display: inline-flex; flex-shrink: 0; align-items: center; gap: 13px; }
.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 47px;
  height: 47px;
  color: #fff;
  border: 1px solid #fffc;
  transform: rotate(45deg);
}
.brand-mark span { position: absolute; font-weight: 900; line-height: 1; transform: rotate(-45deg); }
.brand-mark span:first-child { top: 7px; left: 7px; color: var(--orange); font-size: 22px; }
.brand-mark span:last-child { right: 9px; bottom: 7px; font-size: 17px; }
.brand-name { display: flex; flex-direction: column; gap: 4px; white-space: nowrap; font-size: 15px; font-weight: 700; letter-spacing: .07em; }
.brand-name small { font-family: var(--latin); font-size: 8px; font-weight: 600; letter-spacing: .23em; opacity: .7; }
.site-header nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 54px); margin-left: auto; padding-inline: 30px; font-size: 13px; font-weight: 600; letter-spacing: .06em; }
.site-header nav a { position: relative; padding: 38px 0; }
.site-header nav a::after { position: absolute; bottom: 26px; left: 0; width: 0; height: 2px; content: ""; background: var(--orange); transition: width .25s; }
.site-header nav a:hover::after, .site-header nav a:focus-visible::after { width: 100%; }
.header-contact { display: flex; align-items: center; justify-content: space-between; gap: 28px; height: 100%; padding: 0 30px; background: var(--orange); font-size: 13px; font-weight: 700; }
.header-contact span { font-size: 17px; }

.hero {
  position: relative;
  display: flex;
  align-items: center;
  height: 100svh;
  min-height: 780px;
  max-height: 980px;
  overflow: hidden;
  color: #fff;
  background: radial-gradient(circle at 78% 54%, #3767853b, #0000 25%), linear-gradient(115deg, #071522 0%, #0c2335 58%, #0b1c2a 100%);
}
.hero::after { position: absolute; right: -7vw; bottom: -25%; width: 50vw; height: 100%; content: ""; border: 1px solid #ffffff17; transform: skew(-28deg) rotate(-13deg); }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(#ffffff09 1px, #0000 1px), linear-gradient(90deg, #ffffff09 1px, #0000 1px); background-size: 76px 76px; opacity: .7; mask-image: linear-gradient(90deg, #0000 10%, #000 45% 100%); }
.hero-orbit { position: absolute; border: 1px solid #ffffff14; border-radius: 50%; }
.orbit-one { top: 20%; right: -80px; width: 600px; height: 600px; }
.orbit-two { top: 38%; right: 50px; width: 340px; height: 340px; }
.hero-content { position: relative; z-index: 2; width: min(100% - 12vw, 1240px); margin-inline: auto; padding-top: 70px; }
.eyebrow, .kicker { font-family: var(--latin); font-size: 11px; font-weight: 700; letter-spacing: .24em; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: #ffffff9e; }
.eyebrow span { width: 36px; height: 2px; background: var(--orange); }
.hero h1 { margin: 30px 0 32px; font-size: clamp(54px, 7.2vw, 104px); font-weight: 800; line-height: 1.16; letter-spacing: .04em; }
.hero h1 em { color: var(--orange); font-style: normal; }
.hero-copy { margin: 0; color: #ffffffbf; font-size: 16px; font-weight: 500; line-height: 2; letter-spacing: .08em; }
.hero-link { display: flex; justify-content: space-between; width: 205px; margin-top: 44px; padding-bottom: 14px; border-bottom: 1px solid #ffffff80; font-size: 13px; font-weight: 700; }
.hero-link span:last-child { color: var(--orange); }
.hero-side { position: absolute; top: 50%; right: 4vw; display: flex; flex-direction: column; gap: 18px; color: #ffffff38; font-family: var(--latin); font-size: 9px; font-weight: 700; letter-spacing: .35em; writing-mode: vertical-rl; transform: translateY(-50%); }
.scroll-label { position: absolute; z-index: 2; bottom: 40px; left: 4vw; margin: 0; color: #ffffff59; font-family: var(--latin); font-size: 8px; letter-spacing: .3em; }
.scroll-label::after { display: inline-block; width: 70px; height: 1px; margin-left: 18px; content: ""; vertical-align: middle; background: #ffffff40; }

.statement { display: grid; grid-template-columns: 170px 1fr; padding-top: 150px; padding-bottom: 160px; }
.section-index { padding-top: 6px; color: #a3a4a1; font-family: var(--latin); }
.section-index span { display: block; margin-bottom: 8px; color: var(--orange); font-size: 13px; font-weight: 700; }
.section-index p { margin: 0; font-size: 10px; font-weight: 700; letter-spacing: .25em; writing-mode: vertical-rl; }
.section-index.light { color: #ffffff61; }
.kicker { margin: 0 0 28px; color: #899097; }
.kicker.orange { color: var(--orange); }
.statement h2, .principles h2, .contact h2 { margin: 0; font-size: clamp(36px, 4.2vw, 62px); font-weight: 750; line-height: 1.55; letter-spacing: .055em; }
.statement h2 span { position: relative; z-index: 1; }
.statement h2 span::after { position: absolute; z-index: -1; right: -4px; bottom: 8px; left: -4px; height: 13px; content: ""; background: #f2652233; }
.statement-copy { display: grid; grid-template-columns: repeat(2, 1fr); gap: 60px; margin-top: 68px; padding-top: 40px; border-top: 1px solid var(--line); }
.statement-copy p { margin: 0; color: #586169; font-size: 15px; line-height: 2.15; }

.image-showcase { padding: 0 0 150px; }
.showcase-heading { display: grid; grid-template-columns: 170px 1fr .9fr; align-items: end; gap: 30px; margin-bottom: 54px; }
.showcase-heading h2 { margin: 0; font-size: clamp(42px, 4.6vw, 66px); line-height: 1.3; letter-spacing: .06em; }
.showcase-lead { margin: 0 0 8px; color: #667078; font-size: 14px; line-height: 2; }
.concept-grid { display: grid; grid-template-columns: 1.35fr .85fr; grid-template-rows: repeat(2, minmax(0, 1fr)); gap: 18px; }
.concept-card { position: relative; min-height: 290px; margin: 0; overflow: hidden; background: var(--navy); }
.concept-card::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, transparent 55%, #06131fcc 100%); pointer-events: none; }
.concept-main { grid-row: 1 / 3; min-height: 598px; }
.concept-card img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.concept-card:hover img { transform: scale(1.025); }
.concept-card figcaption { position: absolute; z-index: 1; right: 24px; bottom: 22px; left: 24px; display: flex; align-items: center; gap: 13px; margin: 0; color: #fff; font-size: 14px; font-weight: 700; letter-spacing: .06em; }
.concept-card figcaption span { display: grid; place-items: center; width: 32px; height: 32px; color: var(--orange); border: 1px solid #ffffff66; border-radius: 50%; font-family: var(--latin); font-size: 9px; }
.image-disclaimer { margin: 14px 0 0; color: #7b8389; font-size: 11px; line-height: 1.8; text-align: right; }

.services { padding: 135px 0 150px; color: #fff; background: var(--navy); }
.services-heading { display: grid; grid-template-columns: 170px 1fr 1fr; align-items: end; padding-bottom: 80px; }
.services-heading h2, .company h2 { margin: 0; font-size: clamp(42px, 4.6vw, 66px); line-height: 1; letter-spacing: .08em; }
.services-lead { margin: 0; color: #ffffff94; font-size: 14px; line-height: 2.1; }
.service-list { border-top: 1px solid #ffffff2e; }
.service-row { position: relative; display: grid; grid-template-columns: 80px minmax(280px, 1fr) minmax(300px, .9fr) 50px; align-items: center; gap: 30px; min-height: 168px; border-bottom: 1px solid #ffffff2e; transition: background .25s, padding .25s; }
.service-row:hover { padding-inline: 18px; background: #ffffff09; }
.service-number { color: var(--orange); font-family: var(--latin); font-size: 12px; font-weight: 700; }
.service-title p { margin: 0 0 9px; color: #ffffff52; font-family: var(--latin); font-size: 9px; font-weight: 700; letter-spacing: .22em; }
.service-title h3 { margin: 0; font-size: 25px; letter-spacing: .06em; }
.service-description { margin: 0; color: #ffffff8c; font-size: 13px; line-height: 1.9; }
.service-arrow { display: grid; place-items: center; width: 46px; height: 46px; color: var(--orange); border: 1px solid #fff3; border-radius: 50%; }

.principles { display: grid; grid-template-columns: .85fr 1.35fr; gap: 9vw; padding-top: 150px; padding-bottom: 160px; }
.principles-intro { align-self: start; }
.principle-cards { display: grid; grid-template-columns: repeat(3, 1fr); }
.principle-cards article { display: flex; flex-direction: column; min-height: 360px; padding: 38px 28px; border: 1px solid var(--line); border-right: 0; }
.principle-cards article:last-child { border-right: 1px solid var(--line); }
.principle-cards span { color: var(--orange); font-family: var(--latin); font-size: 11px; font-weight: 700; }
.principle-cards h3 { margin: auto 0 20px; font-size: 20px; }
.principle-cards p { margin: 0; color: #70787f; font-size: 13px; line-height: 1.9; }

.company { padding: 140px 0 150px; color: #fff; background: #101d28; }
.company-grid { display: grid; grid-template-columns: 170px 1fr; }
.company-main dl { max-width: 820px; margin: 70px 0 0; border-top: 1px solid #ffffff2e; }
.company-main dl div { display: grid; grid-template-columns: 180px 1fr; padding: 27px 8px; border-bottom: 1px solid #ffffff2e; }
.company-main dt { color: #ffffff73; font-size: 12px; }
.company-main dd { margin: 0; font-size: 14px; line-height: 1.9; }
.map-link { display: flex; gap: 30px; width: fit-content; margin-top: 30px; padding-bottom: 9px; border-bottom: 1px solid #ffffff59; font-size: 12px; font-weight: 700; }
.map-link span { color: var(--orange); }

.contact { display: grid; grid-template-columns: 1fr .7fr; align-items: end; gap: 100px; padding-top: 135px; padding-bottom: 135px; }
.contact h2 { line-height: 1.45; }
.contact-note { padding: 35px 0 8px; border-top: 2px solid var(--orange); }
.contact-note p { margin: 0 0 12px; color: #687078; font-size: 14px; line-height: 1.9; }

footer { color: #fff; background: var(--deep-navy); }
.footer-main { display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; min-height: 220px; }
.footer-main > p { margin: 0; color: #ffffff85; font-size: 12px; line-height: 1.9; }
.back-top { display: flex; align-items: center; gap: 25px; color: #ffffff8c; font-family: var(--latin); font-size: 9px; font-weight: 700; letter-spacing: .2em; }
.back-top span { display: grid; place-items: center; width: 43px; height: 43px; color: var(--orange); border: 1px solid #ffffff38; border-radius: 50%; font-size: 15px; }
.copyright { padding-top: 22px; padding-bottom: 22px; border-top: 1px solid #ffffff1c; }
.copyright p { margin: 0; color: #ffffff40; font-family: var(--latin); font-size: 8px; letter-spacing: .16em; }

@media (max-width: 980px) {
  .site-header { height: 82px; padding: 0 26px; }
  .site-header nav { display: none; }
  .header-contact { height: 46px; margin-left: auto; padding: 0 18px; }
  .hero-content { width: min(100% - 64px, 820px); }
  .statement, .company-grid, .services-heading { grid-template-columns: 105px 1fr; }
  .showcase-heading { grid-template-columns: 105px 1fr; }
  .showcase-lead { display: none; }
  .services-lead { display: none; }
  .service-row { grid-template-columns: 55px minmax(230px, .9fr) 1fr 46px; gap: 20px; }
  .principles { grid-template-columns: 1fr; gap: 60px; }
  .contact { grid-template-columns: 1fr .8fr; gap: 55px; }
}

@media (max-width: 700px) {
  .section-shell { width: min(100% - 40px, 600px); }
  .site-header { height: 76px; padding: 0 20px; }
  .brand-mark { width: 39px; height: 39px; }
  .brand-mark span:first-child { top: 5px; left: 5px; font-size: 19px; }
  .brand-mark span:last-child { right: 7px; bottom: 6px; font-size: 14px; }
  .brand-name { font-size: 12px; }
  .brand-name small { font-size: 6px; }
  .header-contact { justify-content: center; width: 42px; height: 42px; padding: 0; border-radius: 50%; font-size: 0; }
  .header-contact span { font-size: 17px; }
  .hero { min-height: 710px; }
  .hero-content { width: calc(100% - 40px); padding-top: 20px; }
  .eyebrow { font-size: 8px; letter-spacing: .16em; }
  .eyebrow span { width: 24px; }
  .hero h1 { margin: 28px 0 26px; font-size: clamp(42px, 13vw, 60px); line-height: 1.25; letter-spacing: .02em; }
  .hero-copy { font-size: 13px; line-height: 1.95; }
  .hero-side, .scroll-label { display: none; }
  .orbit-one { right: -230px; width: 430px; height: 430px; }
  .orbit-two { right: -130px; }
  .statement { display: block; padding-top: 90px; padding-bottom: 95px; }
  .section-index { display: flex; align-items: center; gap: 12px; margin-bottom: 42px; }
  .section-index span { margin: 0; }
  .section-index p { writing-mode: horizontal-tb; }
  .kicker { margin-bottom: 20px; }
  .statement h2, .principles h2, .contact h2 { font-size: 32px; line-height: 1.55; }
  .statement-copy { grid-template-columns: 1fr; gap: 20px; margin-top: 46px; padding-top: 30px; }
  .statement-copy p { font-size: 14px; }
  .image-showcase { padding-bottom: 90px; }
  .showcase-heading { display: block; margin-bottom: 36px; }
  .showcase-heading h2 { font-size: 38px; }
  .concept-grid { grid-template-columns: 1fr; grid-template-rows: auto; gap: 12px; }
  .concept-card, .concept-main { grid-row: auto; min-height: 0; aspect-ratio: 16 / 10; }
  .concept-card figcaption { right: 18px; bottom: 16px; left: 18px; font-size: 13px; }
  .image-disclaimer { font-size: 10px; text-align: left; }
  .services { padding: 88px 0 95px; }
  .services-heading { display: block; padding-bottom: 55px; }
  .services-heading h2, .company h2 { font-size: 44px; }
  .service-row { grid-template-columns: 34px 1fr 36px; gap: 14px; min-height: 0; padding: 28px 0; }
  .service-row:hover { padding-inline: 0; }
  .service-title h3 { font-size: 20px; }
  .service-description { grid-column: 2 / 4; font-size: 12px; }
  .service-arrow { width: 34px; height: 34px; }
  .principles { padding-top: 90px; padding-bottom: 95px; }
  .principle-cards { grid-template-columns: 1fr; }
  .principle-cards article, .principle-cards article:last-child { min-height: 250px; border-right: 1px solid var(--line); border-bottom: 0; }
  .principle-cards article:last-child { border-bottom: 1px solid var(--line); }
  .company { padding: 88px 0 95px; }
  .company-grid { display: block; }
  .company-main dl { margin-top: 48px; }
  .company-main dl div { grid-template-columns: 1fr; gap: 10px; padding: 23px 0; }
  .company-main dd { font-size: 13px; }
  .contact { grid-template-columns: 1fr; gap: 50px; padding-top: 90px; padding-bottom: 90px; }
  .footer-main { grid-template-columns: 1fr auto; align-items: start; gap: 35px; min-height: 280px; padding-top: 55px; padding-bottom: 45px; }
  .footer-brand { grid-column: 1 / -1; }
  .back-top { gap: 0; font-size: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}