:root {
  --navy: #082f72;
  --navy-dark: #03245d;
  --ink: #071f4d;
  --muted: #5a6678;
  --line: #dce4ef;
  --pale: #f5f8fc;
  --white: #fff;
  --shadow: 0 7px 22px rgba(11, 43, 91, .07);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: #fff;
  font-family: "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.site-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 8px clamp(20px, 4.5vw, 70px);
  border-bottom: 1px solid #d8e0eb;
  background: rgba(255,255,255,.97);
}
.brand { display: flex; align-items: center; gap: 17px; text-decoration: none; }
.logo { font-family: Georgia, "Times New Roman", serif; font-size: 27px; font-weight: 700; text-decoration: none; }
.brand-note { font-size: 12px; font-weight: 700; }
.header-nav { display: flex; align-items: center; gap: 10px; }
.back-link { padding: 8px 13px; color: #45607f; font-size: 12px; font-weight: 700; text-decoration: none; }
.header-cta {
  padding: 9px 22px;
  border: 1px solid #bfd0e5;
  border-radius: 999px;
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}
.hero {
  display: grid;
  grid-template-columns: minmax(430px, .86fr) minmax(540px, 1.14fr);
  min-height: 560px;
  overflow: hidden;
  background: linear-gradient(90deg, #fff 0%, #fff 43%, #f3f7fb 58%);
}
.hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
  align-self: center;
  padding: 46px 24px 42px max(38px, calc((100vw - 1180px) / 2));
}
.eyebrow { margin: 0 0 12px; color: var(--navy); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.hero h1 {
  margin: 0 0 22px;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(36px, 3.25vw, 48px);
  line-height: 1.42;
  letter-spacing: .035em;
}
.hero-lead { margin: 0; color: #263b59; font-size: 15px; font-weight: 700; }
.hero-actions { display: grid; gap: 10px; max-width: 410px; margin-top: 25px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border: 2px solid var(--navy);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}
.button img { width: 23px; height: 23px; }
.button-primary { color: #fff; background: var(--navy); }
.button-primary img { filter: brightness(0) invert(1); }
.button-secondary { color: var(--navy); background: #fff; }
.confidentiality { margin: 15px 0 0; color: #3d4c62; font-size: 11px; font-weight: 700; }
.hero-visual {
  display: grid;
  grid-template-rows: 1fr 1.14fr .86fr;
  min-width: 0;
  min-height: 560px;
  overflow: hidden;
  background: #e9eef5;
}
.collage-row { display: grid; min-height: 0; gap: 3px; }
.collage-top { grid-template-columns: 1fr .95fr 1fr; }
.collage-middle { grid-template-columns: 1.35fr 1fr; }
.collage-bottom { grid-template-columns: 1fr 1.15fr; }
.hero-visual img { display: block; width: 100%; height: 100%; min-width: 0; min-height: 0; object-fit: cover; object-position: center; }
.section { width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 52px 0 20px; }
.section-heading { margin-bottom: 26px; text-align: center; }
.section-heading h2 { margin: 0; font-size: clamp(25px, 2.7vw, 36px); line-height: 1.4; letter-spacing: .025em; }
.section-heading p { display: inline-block; margin: 4px 0 0 12px; color: #435878; font-size: 13px; font-weight: 700; }
.field-heading { display: flex; align-items: baseline; justify-content: center; }
.grid { display: grid; gap: 14px; }
.grid-five { grid-template-columns: repeat(5, 1fr); }
.grid-six { grid-template-columns: repeat(6, 1fr); }
.grid-four { grid-template-columns: repeat(4, 1fr); }
.card { border: 1px solid var(--line); border-radius: 9px; background: #fff; box-shadow: var(--shadow); }
.icon { display: block; width: 55px; height: 55px; margin: 0 auto; object-fit: contain; }
.data-card { min-height: 205px; padding: 25px 15px 18px; text-align: center; }
.data-card h3 { margin: 13px 0 6px; font-size: 16px; line-height: 1.45; }
.data-card p { margin: 0; color: #46566c; font-size: 12px; }
.support-section { padding-top: 38px; }
.support-card { min-height: 230px; padding: 25px 14px 18px; text-align: center; }
.support-card h3 { margin: 13px 0 8px; font-size: 15px; line-height: 1.45; }
.support-card p { margin: 0; color: #4a586c; font-size: 11px; }
.field-card { overflow: hidden; border-radius: 10px; }
.field-card > img { display: block; width: 100%; height: 164px; object-fit: cover; }
.field-card > div { min-height: 185px; padding: 15px 20px 18px; }
.field-card h3 { margin: 0 0 5px; font-size: 18px; }
.field-card ul { margin: 0; padding-left: 1.2em; color: #33445d; font-size: 12px; }
.poc-card { min-height: 180px; padding: 22px 14px 17px; text-align: center; }
.poc-card h3 { margin: 11px 0 5px; font-size: 15px; }
.poc-card p { margin: 0; color: #4c5b70; font-size: 11px; }
.notice { margin: 15px 0 0; color: #59677a; font-size: 11px; text-align: center; }
.process-section { padding-bottom: 48px; }
.process { display: flex; align-items: center; }
.process > span { padding: 0 7px; color: var(--navy); font-size: 29px; font-weight: 800; }
.process-card {
  position: relative;
  flex: 1;
  min-height: 235px;
  padding: 27px 14px 17px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  box-shadow: var(--shadow);
  text-align: center;
}
.process-card b {
  position: absolute;
  top: -13px;
  left: 16px;
  display: grid;
  width: 29px;
  height: 29px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--navy);
}
.process-card h3 { margin: 10px 0 7px; font-size: 15px; line-height: 1.4; }
.process-card p { margin: 0; color: #48586e; font-size: 11px; }
.strengths { padding: 30px 22px; color: #fff; background: linear-gradient(135deg, #06397f, #01265f); }
.strengths-inner { display: grid; grid-template-columns: repeat(5, 1fr); width: min(1220px, 100%); margin: 0 auto; }
.strengths article { min-height: 170px; padding: 10px 22px; border-right: 1px solid rgba(255,255,255,.55); text-align: center; }
.strengths article:last-child { border: 0; }
.strengths img { width: 48px; height: 48px; filter: brightness(0) invert(1); }
.strengths h3 { margin: 9px 0 7px; font-size: 14px; line-height: 1.5; }
.strengths p { margin: 0; color: #e3efff; font-size: 11px; }
.contact {
  display: grid;
  grid-template-columns: .8fr 1.35fr;
  gap: 30px;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 42px 0 50px;
}
.contact-copy { align-self: center; padding: 12px; }
.contact-copy h2 { margin: 0 0 15px; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(25px, 2.8vw, 38px); line-height: 1.5; }
.contact-copy > p:not(.eyebrow):not(.location) { color: #46556a; font-size: 13px; }
.contact-copy .button { margin-top: 12px; }
.location { margin: 16px 0 0; font-size: 12px; font-weight: 700; }
.contact-form { position: relative; padding: 26px; border: 1px solid var(--line); border-radius: 10px; background: #fff; box-shadow: var(--shadow); }
.website-field { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.field { display: grid; grid-template-columns: 155px 1fr; align-items: start; gap: 13px; margin-bottom: 10px; }
.field label { padding-top: 8px; font-size: 12px; font-weight: 800; }
.field em { margin-left: 4px; color: #dc4036; font-size: 9px; font-style: normal; }
input, textarea {
  width: 100%;
  min-height: 40px;
  padding: 9px 11px;
  border: 1px solid #d7e0eb;
  border-radius: 5px;
  color: #1e2d43;
  background: #fff;
  font: inherit;
  font-size: 12px;
}
textarea { min-height: 66px; resize: vertical; }
.privacy { margin: 4px 0 10px 168px; color: #69778a; font-size: 9px; }
.submit-button {
  display: block;
  width: calc(100% - 168px);
  min-height: 42px;
  margin-left: 168px;
  border: 0;
  border-radius: 5px;
  color: #fff;
  background: var(--navy);
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}
.submit-button:disabled { cursor: wait; opacity: .65; }
.form-status { min-height: 1.5em; margin: 7px 0 0; color: #43536b; font-size: 10px; text-align: right; }
.form-status.is-success { color: #177145; }
.form-status.is-error { color: #c43d34; }
footer {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(24px, 5vw, 70px);
  border-top: 1px solid #dce4ee;
  color: #5e6c7f;
  font-size: 11px;
}
footer span:last-child { margin-left: auto; }

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; }
  .hero-copy { padding: 54px 8vw 42px; }
  .hero-visual { min-height: 460px; margin: 0 8vw 40px; border-radius: 12px; }
  .grid-six { grid-template-columns: repeat(3, 1fr); }
  .grid-five { grid-template-columns: repeat(3, 1fr); }
  .grid-four { grid-template-columns: repeat(2, 1fr); }
  .process { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .process > span { display: none; }
  .strengths-inner { grid-template-columns: repeat(3, 1fr); }
  .strengths article { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.35); }
  .contact { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-header { min-height: 58px; padding: 8px 15px; }
  .brand { gap: 8px; }
  .logo { font-size: 22px; }
  .brand-note, .back-link { display: none; }
  .header-cta { padding: 7px 10px; font-size: 9px; }
  .hero-copy { padding: 40px 20px 32px; }
  .hero h1 { font-size: clamp(30px, 9vw, 38px); }
  .hero-lead br { display: none; }
  .hero-visual { min-height: 285px; margin: 0 14px 30px; }
  .section { width: calc(100% - 28px); padding-top: 42px; }
  .section-heading h2 { font-size: 24px; }
  .field-heading { display: block; }
  .field-heading p { margin-left: 0; }
  .grid-six, .grid-five, .grid-four { grid-template-columns: 1fr; }
  .data-card, .support-card, .poc-card { min-height: auto; }
  .field-card > img { height: 205px; }
  .process { grid-template-columns: 1fr; }
  .process-card { min-height: 205px; }
  .strengths-inner { grid-template-columns: 1fr; }
  .strengths article { min-height: auto; padding: 22px 14px; }
  .contact { width: calc(100% - 28px); padding-top: 34px; }
  .contact-copy { padding: 0; }
  .contact-copy .button { width: 100%; }
  .contact-form { padding: 20px 15px; }
  .field { grid-template-columns: 1fr; gap: 3px; }
  .privacy { margin-left: 0; }
  .submit-button { width: 100%; margin-left: 0; }
  footer { flex-wrap: wrap; gap: 8px 16px; }
  footer span:last-child { width: 100%; margin-left: 0; }
}