@font-face {
  font-family: "Noto Sans JP";
  src: url("/assets/aibpo-japanese.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
@media (max-width: 800px) {
  .site-header nav {
    display: none !important;
  }
  .site-header nav.is-open {
    display: flex !important;
  }
}
:root {
  --ink: #092b3c;
  --blue: #006b9f;
  --sky: #e8f7ff;
  --line: #bddbe9;
  --muted: #486878;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font:
    16px/1.8 "Noto Sans JP",
    sans-serif;
}
a {
  color: inherit;
}
img {
  max-width: 100%;
  height: auto;
}
.shell {
  width: min(1120px, calc(100% - 40px));
  margin: auto;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.site-header {
  height: 76px;
  width: min(1200px, calc(100% - 40px));
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 5;
}
.brand {
  display: inline-flex;
}
.brand img {
  display: block;
  width: 146px;
  height: auto;
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
}
.site-header nav a {
  text-decoration: none;
}
.nav-contact,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid var(--blue);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}
.nav-contact,
.button-primary {
  background: var(--blue);
  color: #fff;
}
.button:hover,
.nav-contact:hover {
  transform: translateY(-2px);
  box-shadow: 0 9px 20px #006b9f33;
}
.menu-toggle {
  display: none;
}
.hero {
  position: relative;
  overflow: hidden;
  padding: 80px 0 62px;
  background: linear-gradient(115deg, #f8fdff 15%, var(--sky) 100%);
}
.hero-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(
      circle at 85% 10%,
      transparent 0 145px,
      #c4eafa 146px 147px,
      transparent 148px
    ),
    radial-gradient(
      circle at 99% 83%,
      transparent 0 280px,
      #b4e3f7 281px 282px,
      transparent 283px
    );
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 1.05fr);
  align-items: center;
  gap: 48px;
}
.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.hero h1,
h2 {
  margin: 0;
  letter-spacing: -0.065em;
  line-height: 1.18;
}
.hero h1 {
  font-size: clamp(46px, 6vw, 76px);
  font-weight: 800;
}
.hero-lead {
  max-width: 490px;
  margin: 28px 0;
  font-size: 18px;
  line-height: 2;
}
.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
}
.text-link {
  font-size: 14px;
  font-weight: 700;
  text-underline-offset: 5px;
}
.hero-visual {
  position: relative;
  padding: 0 12px 40px 0;
}
.hero-visual figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  transform: rotate(1.5deg);
  box-shadow: 18px 24px #c9edfc;
}
.hero-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 1.5;
  object-fit: cover;
}
.hero-visual figcaption {
  position: absolute;
  right: 16px;
  top: 12px;
  padding: 4px 9px;
  background: #ffffffee;
  color: var(--ink);
  font-size: 11px;
}
.process-chip {
  position: absolute;
  bottom: 92px;
  left: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 16px;
  background: #fff;
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }
.table-scroll { overflow-x: auto; }
.scroll-hint { display: none; }
.founder-history { margin: 24px 0 0; font-size: 13px; }
.founder-history div { display: grid; grid-template-columns: 96px 1fr; gap: 12px; border-top: 1px solid var(--line); padding: 10px 0; }
.founder-history dt { font-weight: 700; }
.founder-history dd { margin: 0; color: var(--muted); }
.price-card .legal-note { margin-top: 24px; }
.price-card .text-link { display: inline-block; margin-top: 14px; }
.float-paper {
  position: absolute;
  min-width: 170px;
  padding: 13px 18px;
  background: #fff;
  box-shadow: 0 12px 35px #265a712b;
  line-height: 1.4;
}
.float-paper span {
  display: block;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.float-paper strong {
  display: block;
  margin: 7px 0 3px;
  font-size: 13px;
}
.float-paper small {
  color: var(--muted);
  font-size: 11px;
}
.float-paper.shared {
  left: -28px;
  top: 14%;
}
.float-paper.output {
  right: -8px;
  bottom: 4px;
}
.handoff-strip {
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.strip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.strip-grid p {
  display: grid;
  grid-template-columns: 42px 1fr;
  column-gap: 8px;
  margin: 0;
  padding: 23px 28px;
  border-left: 1px solid var(--line);
  line-height: 1.35;
}
.strip-grid p:last-child {
  border-right: 1px solid var(--line);
}
.strip-grid b {
  grid-row: span 2;
  color: var(--blue);
  font-size: 22px;
}
.strip-grid span {
  font-weight: 800;
}
.strip-grid small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}
.section {
  padding: 115px 0;
}
.section-heading {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: end;
  gap: 70px;
  margin-bottom: 54px;
}
.section h2 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
}
.section-heading p {
  margin: 0;
  color: var(--muted);
}
.issue-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.issue-list li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.issue-list b {
  color: var(--blue);
  font-size: 26px;
}
.issue-list h3 {
  margin: 0 0 6px;
  font-size: 21px;
}
.issue-list p {
  margin: 0;
  color: var(--muted);
}
.responsibility,
.contact {
  background: var(--sky);
}
.role-map {
  display: grid;
  grid-template-columns: 1fr 44px 1fr 44px 1fr;
  align-items: center;
}
.role-map article {
  min-height: 180px;
  padding: 24px;
  background: #fff;
  border-top: 4px solid var(--blue);
  box-shadow: 0 10px 24px #23526912;
}
.role-map article:nth-of-type(2) {
  border-color: #0aacc3;
}
.role-map article:nth-of-type(3) {
  border-color: #69a527;
}
.role-map span {
  color: var(--blue);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.role-map h3 {
  margin: 10px 0 5px;
  font-size: 20px;
}
.role-map p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.role-map i {
  text-align: center;
  color: var(--blue);
  font-size: 24px;
  font-style: normal;
}
.caution,
.legal-note,
.sample-note {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 13px;
}
.sample-section,
.faq,
.industries {
  background: #f8fcfe;
}
.sample-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 25px;
}
.sample-intro h2 {
  font-size: clamp(32px, 4vw, 52px);
}
.sample-intro p {
  max-width: 600px;
  color: var(--muted);
}
.download-link {
  white-space: nowrap;
  font-size: 14px;
  font-weight: 800;
  text-underline-offset: 5px;
}
.sample-tabs {
  display: none;
  gap: 8px;
  padding: 0 4px;
  border-bottom: 1px solid var(--line);
}
.sample-tabs.is-ready { display: flex; }
.sample-tabs button {
  min-height: 46px;
  padding: 0 16px;
  border: 0;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.sample-tabs button[aria-selected="true"] {
  border-color: var(--blue);
  color: var(--blue);
}
.sample-panels {
  margin-top: 26px;
}
.sample-paper {
  max-width: 850px;
  margin: auto;
  padding: 45px 52px;
  background: #fff;
  border: 1px solid #dcebf2;
  box-shadow: 0 10px 36px #31546419;
}
.paper-top {
  display: flex;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}
.paper-top b {
  color: var(--blue);
  letter-spacing: 0.1em;
}
.sample-paper h3 {
  margin: 28px 0 15px;
  font-size: 25px;
}
.sample-paper > p {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 14px;
}
.sample-paper table {
  width: 100%;
  margin-top: 22px;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}
.sample-paper th,
.sample-paper td {
  padding: 10px;
  border-bottom: 1px solid #dbe9ee;
}
.sample-paper th {
  color: var(--muted);
  font-size: 12px;
}
.sample-paper .hold td {
  background: #fff8df;
}
.sample-paper ul {
  padding-left: 22px;
}
.sample-paper li {
  margin: 10px 0;
}
.sample-paper dl {
  margin: 20px 0;
  border-top: 1px solid var(--line);
}
.sample-paper dl div {
  display: grid;
  grid-template-columns: 160px 1fr;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}
.sample-paper dt {
  color: var(--muted);
}
.sample-paper dd {
  margin: 0;
  font-weight: 700;
}
.sample-paper dd small { display: block; margin-top: 4px; font-size: 13px; font-weight: 400; line-height: 1.55; }
.service-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.service-bento article {
  min-height: 180px;
  padding: 24px;
  background: var(--sky);
}
.service-bento article:nth-child(2n) {
  background: #f4fbf4;
}
.service-bento .wide {
  grid-column: span 2;
}
.service-bento span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}
.service-bento h3 {
  margin: 20px 0 6px;
  font-size: 21px;
}
.service-bento p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.pricing {
  background: #e6f7ff;
}
.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 70px;
}
.price-card {
  padding: 34px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 12px 12px #bceafb;
}
.price-card p {
  margin-top: 0;
}
.price-card li {
  margin: 10px 0;
}
.button-light {
  margin-top: 14px;
  background: var(--blue);
  color: #fff;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.steps li {
  padding: 26px 26px 0 0;
}
.steps li + li {
  padding-left: 26px;
  border-left: 1px solid var(--line);
}
.steps b {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-size: 14px;
}
.steps h3 {
  margin: 18px 0 7px;
  font-size: 21px;
}
.steps p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.industries {
  padding: 80px 0;
}
.industry-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}
.industry-grid h2 {
  font-size: 37px;
}
.industry-grid a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  font-weight: 800;
}
.industry-grid a:first-child {
  border-top: 1px solid var(--line);
}
.industry-grid span {
  color: var(--blue);
  font-size: 24px;
}
.founder-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 65px;
  max-width: 850px;
}
.founder-grid img {
  width: 220px;
  border-radius: 50%;
  filter: saturate(0.85);
}
.founder-grid p {
  color: var(--muted);
}
.founder-name {
  color: var(--ink) !important;
  font-weight: 700;
}
.faq h2 {
  margin-bottom: 30px;
}
.faq details {
  padding: 0 4px;
  border-top: 1px solid var(--line);
}
.faq details:last-child {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  display: flex;
  align-items: center;
  min-height: 62px;
  font-weight: 800;
  cursor: pointer;
}
.faq summary::after {
  content: "+";
  margin-left: auto;
  color: var(--blue);
  font-size: 24px;
}
.faq details[open] summary::after {
  content: "−";
}
.faq details p {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 14px;
}
.contact-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: start;
  gap: 80px;
}
.contact aside h2 {
  font-size: 42px;
}
.contact aside ol {
  margin: 30px 0;
  padding: 0;
  list-style: none;
}
.contact aside li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 14px 0;
}
.contact aside b {
  display: grid;
  place-items: center;
  width: 29px;
  height: 29px;
  border: 1px solid var(--blue);
  border-radius: 50%;
  color: var(--blue);
  font-size: 12px;
}
.contact aside > p:last-child {
  color: var(--muted);
  font-size: 14px;
}
.contact-form {
  padding: 35px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 12px 14px #bceafb;
}
.form-note,
.privacy {
  color: #355767 !important;
  font-size: 13px;
}
.contact-form label {
  display: block;
  margin: 16px 0;
  font-size: 14px;
  font-weight: 700;
}
.contact-form label span {
  margin-left: 8px;
  color: var(--blue);
  font-size: 11px;
}
.contact-form input:not([type="hidden"]),
.contact-form select,
.contact-form textarea {
  display: block;
  width: 100%;
  margin-top: 5px;
  padding: 11px;
  border: 1px solid #a5c5d2;
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 16px;
}
.contact-form textarea {
  resize: vertical;
}
.contact-form .button {
  width: 100%;
  margin-top: 10px;
}
.privacy a {
  color: var(--blue);
}
.honeypot {
  display: none;
}
footer {
  padding: 42px 0;
  background: #edf8fc;
  color: var(--ink);
  font-size: 13px;
}
footer .shell {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 9px;
}
footer .brand img {
  width: 128px;
}
footer p {
  margin: 0;
  color: var(--muted);
}
footer div {
  display: flex;
  gap: 18px;
}
footer small {
  grid-column: 1/-1;
  color: var(--muted);
}
footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  grid-column: 1 / -1;
}
footer nav a { padding: 6px 0; }
:focus-visible {
  outline: 3px solid #d77900;
  outline-offset: 4px;
}
@media (max-width: 800px) {
  .site-header {
    height: 68px;
  }
  .scroll-hint { display: block; margin: 16px 0 0; color: var(--muted); font-size: 11px; }
  .site-header nav {
    display: none;
    position: absolute;
    top: 61px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px 20px;
    background: #fff;
    box-shadow: 0 8px 18px #153d4b24;
  }
  .site-header nav.is-open {
    display: flex;
  }
  .site-header nav a {
    display: flex;
    align-items: center;
    min-height: 44px;
  }
  .menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 0;
    background: transparent;
  }
  .menu-toggle span:not(.sr-only) {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--ink);
  }
  .hero {
    padding: 38px 0;
  }
  .hero-grid,
  .section-heading,
  .price-grid,
  .industry-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .hero h1 {
    font-size: 47px;
  }
  .hero-lead {
    margin: 20px 0;
    font-size: 16px;
    line-height: 1.85;
  }
  .hero-actions {
    gap: 16px;
  }
  .hero-visual {
    padding: 20px 8px 28px 0;
  }
  .hero-visual figure {
    box-shadow: 9px 12px #c9edfc;
  }
  .float-paper {
    min-width: 144px;
    padding: 10px 12px;
  }
  .float-paper.shared {
    left: -8px;
  }
  .float-paper.output {
    right: -5px;
  }
  .strip-grid p {
    display: block;
    padding: 16px 9px;
    border-left: 0;
  }
  .strip-grid b {
    display: block;
    font-size: 16px;
  }
  .strip-grid span {
    display: block;
    margin: 4px 0;
    font-size: 13px;
  }
  .strip-grid small {
    font-size: 11px;
  }
  .section {
    padding: 75px 0;
  }
  .section-heading {
    margin-bottom: 32px;
  }
  .role-map {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .role-map i {
    height: 30px;
    transform: rotate(90deg);
  }
  .role-map article {
    min-height: 0;
    padding: 20px;
  }
  .sample-intro {
    display: block;
  }
  .download-link {
    display: inline-block;
    margin-top: 8px;
  }
  .sample-tabs {
    overflow: auto;
  }
  .sample-tabs button {
    white-space: nowrap;
    font-size: 13px;
  }
  .sample-paper {
    padding: 28px 18px;
  }
  .sample-paper table {
    min-width: 0;
    table-layout: fixed;
    font-size: 12px;
  }
  .sample-paper th,
  .sample-paper td {
    padding: 7px 3px;
    overflow-wrap: anywhere;
    word-break: break-word;
  }
  .sample-paper dl div {
    grid-template-columns: 116px 1fr;
  }
  .service-bento {
    grid-template-columns: 1fr 1fr;
  }
  .service-bento .wide {
    grid-column: span 2;
  }
  .price-card {
    padding: 26px;
  }
  .steps {
    grid-template-columns: 1fr;
    border-top: 0;
  }
  .steps li,
  .steps li + li {
    padding: 20px 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
  .steps li:last-child {
    border-bottom: 1px solid var(--line);
  }
  .founder-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .founder-grid img {
    width: 150px;
  }
  .contact-form {
    padding: 24px;
    box-shadow: 8px 9px #bceafb;
  }
  footer .shell {
    grid-template-columns: 1fr;
  }
  footer div {
    grid-row: 3;
  }
  footer small {
    grid-column: auto;
  }
}
@media (max-width: 390px) {
  .shell,
  .site-header {
    width: calc(100% - 32px);
  }
  .hero h1 {
    font-size: 42px;
  }
  .button {
    padding: 10px 16px;
    font-size: 14px;
  }
  .float-paper { min-width: 138px; }
  .float-paper.shared {
    left: -14px;
  }
  .float-paper.output {
    right: -16px;
  }
  .section h2 {
    font-size: 30px;
  }
  .service-bento {
    gap: 8px;
  }
  .service-bento article {
    min-height: 150px;
    padding: 16px;
  }
  .service-bento h3 {
    font-size: 17px;
  }
  .contact aside h2 {
    font-size: 35px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  ::before,
  ::after {
    animation: none !important;
    transition: none !important;
  }
}