:root {
  --adtp-cyan: #47e6ff;
  --adtp-cyan-deep: #0bb7dc;
  --adtp-navy: #071b42;
  --adtp-ink: #102751;
  --adtp-copy: #263550;
  --adtp-mist: #f5f9fc;
  --adtp-line: rgba(15, 42, 81, .16);
  --adtp-max: 1220px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.adtp-page { margin: 0 !important; background: #fff; color: var(--adtp-copy); overflow-x: hidden; }
body.adtp-page, .adtp-page button, .adtp-page input, .adtp-page select { font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "YuGothic", Meiryo, sans-serif; }
.adtp-site { overflow: clip; background: #fff; }
.adtp-container { width: min(var(--adtp-max), calc(100% - 80px)); margin-inline: auto; }

.adtp-header { position: fixed; z-index: 30; top: 0; left: 0; right: 0; min-height: 96px; display: flex; align-items: center; justify-content: space-between; padding: 18px max(40px, calc((100vw - var(--adtp-max)) / 2)); color: #fff; background: linear-gradient(104deg, #27cbeb 0%, #47e6ff 50%, #30cce8 100%); border-bottom: 1px solid rgba(255,255,255,.45); transition: box-shadow .25s ease, min-height .25s ease; }
.adtp-header.is-scrolled { min-height: 78px; box-shadow: 0 8px 28px rgba(7, 27, 66, .15); }
.adtp-brand { display: inline-flex; flex-direction: column; gap: 2px; text-decoration: none; color: #fff; letter-spacing: -.02em; }
.adtp-brand__en { font-size: clamp(22px, 2vw, 34px); line-height: 1; font-weight: 650; }
.adtp-brand__ja { font-size: clamp(12px, 1.05vw, 16px); line-height: 1.5; font-weight: 600; }
.adtp-nav { display: flex; align-items: center; gap: clamp(26px, 4vw, 72px); }
.adtp-nav a { color: #fff; text-decoration: none; font-size: 16px; line-height: 1; letter-spacing: .03em; padding: 14px 0; position: relative; }
.adtp-nav a::after { content: ""; position: absolute; left: 0; bottom: 5px; width: 0; height: 1px; background: #fff; transition: width .2s ease; }
.adtp-nav a:hover::after, .adtp-nav a:focus-visible::after { width: 100%; }
.adtp-menu-toggle { display: none; border: 0; background: transparent; width: 52px; height: 52px; padding: 10px; cursor: pointer; }
.adtp-menu-toggle span { display: block; height: 3px; width: 100%; background: #fff; border-radius: 99px; margin: 6px 0; transition: transform .25s ease, opacity .25s ease; }
.adtp-mobile-menu { position: fixed; z-index: 29; inset: 0; padding-top: 96px; display: none; background: rgba(7,27,66,.98); opacity: 0; pointer-events: none; transition: opacity .25s ease; }
.adtp-mobile-menu.is-open { opacity: 1; pointer-events: auto; }
.adtp-mobile-menu nav { display: flex; flex-direction: column; padding: 42px 28px; }
.adtp-mobile-menu a { color: #fff; text-decoration: none; font-size: 28px; padding: 20px 0; border-bottom: 1px solid rgba(255,255,255,.2); }

.adtp-hero { position: relative; display: grid; min-height: 780px; align-items: center; padding-top: 96px; isolation: isolate; overflow: hidden; background: linear-gradient(135deg, #fafcff 0%, #f4fbff 47%, #e5f8ff 100%); }
.adtp-hero::after { content: ""; position: absolute; z-index: -1; left: -5%; right: -5%; bottom: -70px; height: 43%; background: linear-gradient(0deg, rgba(84, 204, 245, .38), rgba(215, 246, 255, .04)); clip-path: polygon(0 78%, 5% 65%, 10% 72%, 15% 54%, 20% 75%, 25% 40%, 30% 70%, 35% 54%, 40% 79%, 45% 50%, 50% 72%, 55% 44%, 60% 77%, 65% 56%, 70% 76%, 75% 42%, 80% 67%, 85% 51%, 90% 70%, 95% 43%, 100% 72%, 100% 100%, 0 100%); opacity: .55; }
.adtp-hero__glow { position: absolute; z-index: -1; border-radius: 50%; filter: blur(12px); }
.adtp-hero__glow--one { width: 58vw; height: 58vw; max-width: 800px; max-height: 800px; right: -18vw; bottom: -24vw; background: radial-gradient(circle, rgba(72, 229, 255, .5), transparent 64%); }
.adtp-hero__glow--two { width: 32vw; height: 32vw; left: 42%; top: 7%; background: radial-gradient(circle, rgba(255,255,255,.94), transparent 62%); }
.adtp-hero__network { position: absolute; z-index: -1; width: 1150px; height: 500px; right: -90px; bottom: 12px; opacity: .75; }
.adtp-hero__network span { position: absolute; display: block; width: 460px; height: 250px; border: 1.2px solid rgba(255,255,255,.85); border-radius: 50%; transform: rotate(-10deg); box-shadow: 0 0 6px rgba(255,255,255,.65); }
.adtp-hero__network span:nth-child(1){ right:0; bottom:10px; }
.adtp-hero__network span:nth-child(2){ right:150px; bottom:72px; transform:rotate(7deg); }
.adtp-hero__network span:nth-child(3){ right:330px; bottom:-15px; transform:rotate(-22deg); }
.adtp-hero__network span:nth-child(4){ right:470px; bottom:102px; transform:rotate(18deg); }
.adtp-hero__network span:nth-child(5){ right:610px; bottom:-20px; transform:rotate(-7deg); }
.adtp-hero__network span:nth-child(6){ right:750px; bottom:85px; transform:rotate(14deg); }
.adtp-hero__content { padding: 110px 0 132px; }
.adtp-eyebrow { margin: 0 0 24px; color: #0c68b7; font-size: 12px; letter-spacing: .18em; font-weight: 700; }
.adtp-hero h1, .adtp-philosophy h2, .adtp-section-heading h2, .adtp-ai h2 { font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif; font-weight: 500; letter-spacing: .04em; color: var(--adtp-navy); }
.adtp-hero h1 { margin: 0; font-size: clamp(56px, 7.3vw, 118px); line-height: 1.22; }
.adtp-hero__lead { margin: 46px 0 0; color: #18396b; font-size: clamp(18px, 2.05vw, 29px); line-height: 1.72; font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif; }

.adtp-philosophy { padding: 142px 0 136px; background: #fff; }
.adtp-philosophy__inner { max-width: 980px; }
.adtp-section-label { margin: 0 0 23px; color: #006fce; font-size: 13px; letter-spacing: .15em; font-weight: 700; }
.adtp-philosophy h2 { margin: 0; font-size: clamp(37px, 4.5vw, 64px); line-height: 1.35; }
.adtp-philosophy__copy { margin-top: 52px; max-width: 770px; display: grid; gap: 24px; font-size: 16px; line-height: 2; }
.adtp-philosophy__copy p { margin: 0; }

.adtp-business { padding: 120px 0 142px; background: linear-gradient(180deg, #f4f8fc 0%, #fff 100%); }
.adtp-section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 42px; }
.adtp-section-heading h2 { margin: 0; font-size: clamp(47px, 5.4vw, 76px); line-height: 1; }
.adtp-section-heading__meta { color: #006fce; font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.adtp-business-card { display: grid; grid-template-columns: minmax(300px, 48%) 1fr; gap: clamp(30px, 4.5vw, 72px); align-items: center; margin-top: 26px; padding: clamp(20px, 2.2vw, 32px); background: rgba(255,255,255,.96); border: 1px solid rgba(15, 42, 81, .06); border-radius: 18px; box-shadow: 0 15px 35px rgba(20,47,79,.09); }
.adtp-business-card__image { overflow: hidden; border-radius: 12px; background: #071525; line-height: 0; }
.adtp-business-card__image img { width: 100%; height: auto; display: block; }
.adtp-business-card__image--portrait { max-width: 470px; justify-self: center; }
.adtp-business-card__body { padding: 8px 0; }
.adtp-business-card__number { margin: 0 0 10px; font-size: 12px; color: #078ee7; letter-spacing: .16em; font-weight: 700; }
.adtp-business-card h3 { position: relative; margin: 0 0 30px; padding-bottom: 18px; color: var(--adtp-navy); font-size: clamp(27px, 3vw, 43px); line-height: 1.3; font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif; font-weight: 500; }
.adtp-business-card h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 48px; height: 3px; background: var(--adtp-cyan-deep); }
.adtp-business-card p { margin: 0 0 14px; font-size: 15px; line-height: 1.95; }
.adtp-business-card p:last-child { margin-bottom: 0; }
.adtp-business-card a { color: #006fce; font-weight: 700; text-decoration-color: rgba(0,111,206,.35); text-underline-offset: 3px; }

.adtp-ai { padding: 128px 0; background: radial-gradient(circle at 72% 20%, rgba(40, 120, 210, .32), transparent 35%), linear-gradient(125deg, #03122f 0%, #071b42 57%, #04172c 100%); color: #fff; }
.adtp-ai__inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(38px, 6vw, 94px); align-items: center; }
.adtp-ai .adtp-section-label { color: var(--adtp-cyan); }
.adtp-ai h2 { color: #fff; margin: 0; font-size: clamp(43px, 5.2vw, 74px); line-height: 1.32; }
.adtp-ai__copy { margin-top: 36px; max-width: 520px; font-size: 15px; line-height: 1.95; color: rgba(255,255,255,.88); }
.adtp-ai__copy p { margin: 0 0 18px; }
.adtp-ai__copy p:last-child { margin-bottom: 0; }
.adtp-ai__image { overflow: hidden; border: 1px solid rgba(255,255,255,.22); border-radius: 16px; line-height: 0; box-shadow: 0 18px 45px rgba(0,0,0,.35); }
.adtp-ai__image img { display: block; width: 100%; height: auto; }

.adtp-footer { padding: 72px 0 28px; background: #fff; color: var(--adtp-ink); }
.adtp-footer__brand { display: flex; flex-direction: column; gap: 4px; margin-bottom: 36px; font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.adtp-footer__brand small { font-size: 13px; font-weight: 500; }
.adtp-footer__links { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--adtp-line); border-left: 1px solid var(--adtp-line); }
.adtp-footer__links a { display: flex; justify-content: space-between; gap: 12px; align-items: center; min-height: 64px; padding: 18px 20px; text-decoration: none; color: inherit; border-right: 1px solid var(--adtp-line); border-bottom: 1px solid var(--adtp-line); font-size: 14px; transition: color .2s, background .2s; }
.adtp-footer__links a:hover, .adtp-footer__links a:focus-visible { color: #006fce; background: #f7fcff; }
.adtp-footer__links b { font-size: 24px; font-weight: 400; line-height: .5; }
.adtp-footer__bottom { padding-top: 25px; text-align: center; font-size: 13px; color: #5f6c81; }

@media (max-width: 820px) {
  .adtp-container { width: min(100% - 40px, 620px); }
  .adtp-header { min-height: 82px; padding: 14px 20px; }
  .adtp-header.is-scrolled { min-height: 72px; }
  .adtp-brand__en { font-size: 23px; }
  .adtp-brand__ja { font-size: 11px; }
  .adtp-nav { display: none; }
  .adtp-menu-toggle { display: block; }
  .adtp-mobile-menu { display: block; padding-top: 82px; }
  .adtp-menu-toggle.is-open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
  .adtp-menu-toggle.is-open span:nth-child(2) { opacity: 0; }
  .adtp-menu-toggle.is-open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
  .adtp-hero { min-height: 670px; padding-top: 82px; }
  .adtp-hero__content { padding: 78px 0 90px; }
  .adtp-eyebrow { margin-bottom: 18px; font-size: 10px; }
  .adtp-hero h1 { font-size: clamp(46px, 13vw, 66px); line-height: 1.3; letter-spacing: .02em; }
  .adtp-hero__lead { margin-top: 30px; font-size: 18px; }
  .adtp-hero__network { right: -580px; bottom: -22px; opacity: .68; }
  .adtp-philosophy { padding: 92px 0; }
  .adtp-philosophy h2 { font-size: 33px; line-height: 1.48; }
  .adtp-philosophy__copy { margin-top: 37px; gap: 21px; font-size: 15px; line-height: 1.95; }
  .adtp-business { padding: 82px 0 94px; }
  .adtp-section-heading { margin-bottom: 26px; }
  .adtp-section-heading h2 { font-size: 48px; }
  .adtp-business-card { grid-template-columns: 1fr; gap: 24px; margin-top: 18px; padding: 14px; border-radius: 14px; }
  .adtp-business-card__image--portrait { max-width: 100%; }
  .adtp-business-card__body { padding: 6px 7px 13px; }
  .adtp-business-card h3 { margin-bottom: 22px; font-size: 30px; }
  .adtp-business-card p { font-size: 14px; line-height: 1.9; }
  .adtp-ai { padding: 84px 0 92px; }
  .adtp-ai__inner { grid-template-columns: 1fr; gap: 35px; }
  .adtp-ai h2 { font-size: 40px; }
  .adtp-ai__copy { margin-top: 28px; font-size: 14px; }
  .adtp-footer { padding: 54px 0 25px; }
  .adtp-footer__brand { font-size: 22px; margin-bottom: 26px; }
  .adtp-footer__links { grid-template-columns: 1fr; }
  .adtp-footer__links a { min-height: 58px; padding: 15px 14px; }
}

@media (max-width: 390px) {
  .adtp-container { width: min(100% - 32px, 620px); }
  .adtp-brand__en { font-size: 20px; }
  .adtp-hero h1 { font-size: 44px; }
  .adtp-philosophy h2 { font-size: 30px; }
}

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