:root {
  --navy: #082f72;
  --ink: #071f4d;
  --muted: #58667a;
  --line: #dce4ee;
  --pale: #f4f8fc;
  --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 { 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 42%, #edf4fa 57%); }
.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: .06em; }
.hero h1 { margin: 0 0 22px; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(36px, 3.25vw, 49px); line-height: 1.42; letter-spacing: .03em; }
.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; }
.location { display: flex; align-items: center; gap: 7px; margin: 16px 0 0; font-size: 12px; font-weight: 700; }
.location img { width: 20px; height: 20px; }
.hero-visual { position: relative; min-width: 0; min-height: 560px; overflow: hidden; background: #dce7f0; }
.hero-visual > img { display: block; width: 100%; height: 100%; min-height: 560px; object-fit: cover; object-position: center; }
.hero-visual > p { position: absolute; right: 18px; bottom: 0; left: 18px; margin: 0; padding: 7px 14px; border-radius: 5px 5px 0 0; color: #fff; background: rgba(4,43,103,.94); font-size: 11px; font-weight: 700; text-align: center; }
.section { width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 50px 0 20px; }
.section-heading { margin-bottom: 25px; text-align: center; }
.section-heading h2 { margin: 0; font-size: clamp(25px, 2.7vw, 36px); line-height: 1.4; }
.section-heading p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.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; }
.issue-card { min-height: 210px; padding: 25px 15px 18px; text-align: center; }
.issue-card h3 { margin: 13px 0 7px; font-size: 16px; line-height: 1.45; }
.issue-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; }
.usecase-card { overflow: hidden; border-radius: 10px; }
.usecase-card > img { display: block; width: 100%; height: 164px; object-fit: cover; }
.usecase-card > div { min-height: 180px; padding: 15px 20px 18px; }
.usecase-card h3 { margin: 0 0 5px; font-size: 18px; }
.usecase-card ul { margin: 0; padding-left: 1.2em; color: #33445d; font-size: 12px; }
.notice { margin: 15px 0 0; color: #59677a; font-size: 11px; text-align: center; }
.process-section { padding-bottom: 42px; }
.process { display: flex; align-items: center; }
.process > span { padding: 0 9px; color: var(--navy); font-size: 29px; font-weight: 800; }
.process-card { position: relative; flex: 1; min-height: 230px; padding: 28px 15px 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: 15px; padding: 5px 9px; border-radius: 999px; color: #fff; background: var(--navy); font-size: 10px; }
.process-card h3 { margin: 10px 0 7px; font-size: 16px; line-height: 1.4; }
.process-card p { margin: 0; color: #48586e; font-size: 11px; }
.process-note { margin: 22px auto 0; max-width: 850px; padding: 7px 18px; border-radius: 5px; color: #fff; background: var(--navy); font-size: 12px; font-weight: 700; text-align: center; }
.strengths { padding: 25px 22px 32px; color: #fff; background: linear-gradient(135deg, #06397f, #01265f); }
.strengths .section-heading { margin-bottom: 22px; }
.strengths-inner { display: grid; grid-template-columns: repeat(5, 1fr); width: min(1220px, 100%); margin: 0 auto; }
.strengths article { min-height: 175px; padding: 10px 22px; border-right: 1px solid rgba(255,255,255,.55); text-align: center; }
.strengths article:last-child { border: 0; }
.strengths img { width: 49px; height: 49px; filter: brightness(0) invert(1); }
.strengths h3 { margin: 9px 0 7px; font-size: 15px; line-height: 1.45; }
.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; }
.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; }
  .hero-visual > img { min-height: 460px; }
  .grid-six, .grid-five { grid-template-columns: repeat(3, 1fr); }
  .grid-four { grid-template-columns: repeat(2, 1fr); }
  .process { display: grid; grid-template-columns: repeat(2, 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(29px, 8.8vw, 37px); }
  .hero-lead br { display: none; }
  .hero-visual { min-height: 300px; margin: 0 14px 30px; }
  .hero-visual > img { min-height: 300px; }
  .hero-visual > p { right: 0; left: 0; font-size: 9px; }
  .section { width: calc(100% - 28px); padding-top: 42px; }
  .section-heading h2 { font-size: 24px; }
  .grid-six, .grid-five, .grid-four { grid-template-columns: 1fr; }
  .issue-card, .support-card { min-height: auto; }
  .usecase-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; }
}