:root {
  --navy: #16335b;
  --navy-2: #1f4f8f;
  --blue: #2f6fed;
  --blue-soft: #e8f0fe;
  --ink: #20293a;
  --muted: #5b6b82;
  --surface: #ffffff;
  --soft: #eef2f7;
  --line: #d8e0eb;
  --green: #2eaf7d;
  --amber: #f0a800;
  --shadow: 0 22px 60px rgba(17, 42, 78, .18);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--surface); font-family: "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif; line-height: 1.75; }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.35; letter-spacing: -.035em; }

.site-header { position: sticky; top: 0; z-index: 20; min-height: 72px; display: flex; align-items: center; gap: 30px; padding: 12px max(24px, calc((100vw - 1180px) / 2)); background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(22,51,91,.1); backdrop-filter: blur(16px); }
.brand { display: inline-flex; align-items: center; gap: 12px; margin-right: auto; color: var(--navy); font-size: .96rem; font-weight: 800; text-decoration: none; }
.brand-mark { width: 34px; height: 28px; display: grid; grid-template-columns: repeat(3, 1fr); align-items: end; gap: 3px; padding: 5px; border-radius: 9px; background: var(--navy); }
.brand-mark span { display: block; border-radius: 3px 3px 1px 1px; background: #fff; }
.brand-mark span:nth-child(1) { height: 7px; opacity: .65; }
.brand-mark span:nth-child(2) { height: 13px; }
.brand-mark span:nth-child(3) { height: 18px; background: #69a0ff; }
.site-header nav { display: flex; gap: 26px; }
.site-header nav a { color: var(--muted); font-size: .86rem; font-weight: 700; text-decoration: none; }
.site-header nav a:hover { color: var(--blue); }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 24px; border-radius: 10px; font-weight: 800; text-decoration: none; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-small { min-height: 42px; padding: 0 18px; color: #fff; background: var(--navy); font-size: .84rem; }
.button-primary { color: #fff; background: var(--blue); box-shadow: 0 14px 30px rgba(47,111,237,.27); }
.button-primary:hover { background: #245fce; box-shadow: 0 18px 36px rgba(47,111,237,.36); }

.section { padding: 112px max(24px, calc((100vw - 1180px) / 2)); }
.section-dark { color: #fff; background: linear-gradient(135deg, #102b4f 0%, var(--navy) 48%, var(--navy-2) 100%); }
.section-soft { background: var(--soft); }
.eyebrow { margin-bottom: 18px; color: #9fc1ff; font-size: .78rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow-blue { color: var(--blue); }
.section-heading { max-width: 680px; margin-bottom: 54px; }
.section-heading.centered { margin-right: auto; margin-left: auto; text-align: center; }
.section-heading h2 { margin-bottom: 18px; color: var(--navy); font-size: clamp(2rem, 4vw, 3.45rem); }
.section-heading p:last-child { color: var(--muted); }
.section-heading.light h2 { color: #fff; }

.hero { min-height: calc(100vh - 72px); display: grid; grid-template-columns: minmax(0, .82fr) minmax(520px, 1.18fr); align-items: center; gap: 62px; padding: 86px max(24px, calc((100vw - 1320px) / 2)) 94px; overflow: hidden; }
.hero h1 { margin-bottom: 24px; font-size: clamp(3rem, 5.2vw, 5.3rem); letter-spacing: -.065em; }
.hero-lead { max-width: 670px; color: #d9e5f7; font-size: 1.04rem; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 34px; }
.text-link { color: #fff; font-weight: 800; text-decoration: none; }
.access-note { margin: 12px 0 0; color: #aec4e5; font-size: .78rem; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin: 34px 0 0; padding: 0; list-style: none; }
.hero-points li { padding: 7px 12px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; color: #dbe8f9; background: rgba(255,255,255,.06); font-size: .75rem; font-weight: 700; }
.hero-visual { margin: 0; border: 1px solid rgba(255,255,255,.22); border-radius: 17px; background: #fff; box-shadow: 0 35px 80px rgba(0,0,0,.3); transform: perspective(1400px) rotateY(-3deg); overflow: hidden; }
.hero-visual img { width: 100%; }
.hero-visual figcaption { padding: 10px 16px; color: var(--muted); background: #fff; font-size: .72rem; text-align: right; }
.window-bar { height: 38px; display: flex; align-items: center; gap: 7px; padding: 0 13px; color: var(--muted); background: #f6f8fb; border-bottom: 1px solid #e2e7ee; }
.window-bar span { width: 8px; height: 8px; border-radius: 50%; background: #c5cfdd; }
.window-bar b { margin-left: 7px; font-size: .68rem; }

.problem { display: grid; grid-template-columns: .75fr 1.25fr; gap: 76px; align-items: start; }
.problem-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.problem-grid article { min-height: 210px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 12px 34px rgba(22,51,91,.07); }
.problem-grid span, .feature-grid b { color: var(--blue); font-size: .75rem; letter-spacing: .12em; }
.problem-grid h3 { margin: 34px 0 8px; color: var(--navy); font-size: 1.15rem; }
.problem-grid p { margin: 0; color: var(--muted); font-size: .9rem; }

.role-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.role-card { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.role-card.featured { color: #fff; background: var(--navy); border-color: var(--navy); transform: translateY(-14px); box-shadow: var(--shadow); }
.role-label { display: inline-block; margin-bottom: 42px; padding: 6px 10px; border-radius: 999px; color: var(--blue); background: var(--blue-soft); font-size: .74rem; font-weight: 900; }
.featured .role-label { color: #fff; background: rgba(255,255,255,.13); }
.role-card h3 { font-size: 1.35rem; }
.role-card p:last-child { margin-bottom: 0; color: var(--muted); font-size: .91rem; }
.role-card.featured p:last-child { color: #d3e0f3; }

.flow-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin: 0; padding: 0; list-style: none; counter-reset: flow; }
.flow-list li { position: relative; display: flex; gap: 18px; padding: 28px 12px 28px 0; border-top: 2px solid var(--line); }
.flow-list li::after { content: ""; position: absolute; top: -2px; left: 0; width: 34%; height: 2px; background: var(--blue); }
.flow-list li > span { flex: 0 0 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--navy); font-weight: 900; }
.flow-list h3 { margin: 4px 0 10px; color: var(--navy); }
.flow-list p { margin: 0; color: var(--muted); font-size: .9rem; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature-grid article { min-height: 240px; padding: 30px; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); background: rgba(255,255,255,.07); }
.feature-grid b { color: #8ab4ff; }
.feature-grid h3 { margin: 45px 0 10px; font-size: 1.2rem; }
.feature-grid p { margin: 0; color: #cedbf0; font-size: .89rem; }

.screen-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.screen-grid figure { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 16px 50px rgba(22,51,91,.1); overflow: hidden; }
.screen-grid .screen-wide { grid-column: 1 / -1; }
.screen-grid img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; object-position: top; border-bottom: 1px solid var(--line); }
.screen-grid figcaption { display: flex; align-items: baseline; gap: 14px; padding: 18px 22px; }
.screen-grid figcaption b { color: var(--navy); }
.screen-grid figcaption span { color: var(--muted); font-size: .82rem; }

.faq { display: grid; grid-template-columns: .65fr 1.35fr; gap: 70px; }
.faq-list { border-top: 1px solid #cad4e1; }
.faq-list details { border-bottom: 1px solid #cad4e1; }
.faq-list summary { padding: 24px 42px 24px 0; color: var(--navy); font-weight: 800; cursor: pointer; }
.faq-list p { padding: 0 40px 22px 0; color: var(--muted); font-size: .92rem; }

.final-cta { padding: 110px 24px; text-align: center; }
.final-cta h2 { margin-bottom: 18px; font-size: clamp(2.4rem, 5vw, 4rem); }
.final-cta > p:not(.eyebrow) { max-width: 660px; margin: 0 auto 30px; color: #d8e4f5; }
footer { display: flex; justify-content: space-between; gap: 20px; padding: 28px max(24px, calc((100vw - 1180px) / 2)); color: var(--muted); background: #0d213d; }
footer span { color: #fff; font-weight: 800; }

.mobile-only { display: none; }
@media (max-width: 980px) {
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 54px; }
  .hero-visual { transform: none; }
  .problem, .faq { grid-template-columns: 1fr; gap: 30px; }
  .role-grid, .flow-list, .feature-grid { grid-template-columns: 1fr; }
  .role-card.featured { transform: none; }
  .feature-grid article { min-height: 190px; }
}
@media (max-width: 640px) {
  .site-header { min-height: 64px; padding: 10px 16px; }
  .brand { font-size: .78rem; }
  .brand-mark { width: 30px; height: 26px; }
  .button-small { min-height: 38px; padding: 0 12px; font-size: .72rem; }
  .section { padding: 78px 20px; }
  .hero { padding: 68px 20px 76px; }
  .hero h1 { font-size: 2.65rem; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 16px; }
  .hero-actions .text-link { text-align: center; }
  .problem-grid, .screen-grid { grid-template-columns: 1fr; }
  .screen-grid .screen-wide { grid-column: auto; }
  .problem-grid article { min-height: auto; }
  .screen-grid figcaption { align-items: flex-start; flex-direction: column; gap: 2px; }
  footer { align-items: flex-start; flex-direction: column; }
  .mobile-only { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}