:root {
  --ink: #233248;
  --muted: #5f6875;
  --blue: #15518b;
  --blue-deep: #0d355f;
  --blue-soft: #dcebf6;
  --cream: #fbf7ee;
  --paper: #fffdfa;
  --gold: #c79a45;
  --coral: #df745f;
  --line: #dce3e8;
  --shadow: 0 24px 70px rgba(35, 50, 72, .12);
  --radius: 28px;
  --content: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.9;
  letter-spacing: .025em;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.progress { position: fixed; inset: 0 0 auto; z-index: 100; height: 4px; background: rgba(255,255,255,.4); }
.progress span { display: block; width: 100%; height: 100%; background: var(--gold); transform: scaleX(0); transform-origin: left; }

.lp-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 10px clamp(18px, 4vw, 56px);
  background: rgba(255,253,250,.9);
  border-bottom: 1px solid rgba(35,50,72,.08);
  backdrop-filter: blur(18px);
}
.brand { display: flex; flex-direction: column; text-decoration: none; line-height: 1.2; }
.brand__name { font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-weight: 700; font-size: 18px; }
.brand__role { margin-top: 4px; font-size: 10px; letter-spacing: .18em; color: var(--blue); }
.header-cta { padding: 10px 18px; color: #fff; background: var(--blue); border-radius: 999px; font-weight: 700; font-size: 14px; text-decoration: none; }

.hero { position: relative; overflow: hidden; padding: clamp(72px, 10vw, 132px) 24px; background: linear-gradient(145deg, #fffdf8, #f2f7fb 60%, #eef5f8); }
.hero__glow { position: absolute; border-radius: 999px; filter: blur(3px); opacity: .7; }
.hero__glow--one { width: 460px; height: 460px; right: -180px; top: -170px; background: rgba(127,180,214,.24); }
.hero__glow--two { width: 320px; height: 320px; left: -160px; bottom: -170px; background: rgba(236,190,99,.2); }
.hero__inner { position: relative; z-index: 1; width: min(100%, var(--content)); margin: auto; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); gap: clamp(44px, 7vw, 96px); align-items: center; }
.eyebrow, .section-kicker { margin: 0 0 16px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .2em; }
.hero h1 { margin: 0; max-width: 780px; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(36px, 5.8vw, 72px); line-height: 1.34; letter-spacing: -.025em; }
.hero h1 .hero-title__line { display: block; color: inherit; background: none; }
.hero h1 .hero-title__line--middle { color: var(--blue); font-size: .72em; white-space: nowrap; }
.hero h1 .hero-title__line--last { white-space: nowrap; }
.hero h1 .hero-title__line--middle,
.hero h1 .hero-title__accent { background: linear-gradient(transparent 82%, rgba(199,154,69,.26) 0); }
.hero h1 .hero-title__accent { color: var(--blue); }
.hero__lead { margin: 32px 0 10px; font-weight: 700; font-size: clamp(17px, 2vw, 21px); }
.hero__body { max-width: 660px; margin: 0; color: var(--muted); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 18px 24px; align-items: center; margin-top: 34px; }
.button { display: inline-flex; min-height: 54px; padding: 14px 28px; align-items: center; justify-content: center; gap: 14px; border: 0; border-radius: 999px; font: inherit; font-weight: 800; text-decoration: none; cursor: pointer; box-shadow: 0 14px 30px rgba(21,81,139,.2); }
.button--primary { color: #fff; background: var(--blue); }
.button--primary:hover { background: var(--blue-deep); transform: translateY(-1px); }
.text-link { color: var(--blue); font-weight: 700; text-underline-offset: 6px; }
.reassurance { margin: 20px 0 0; color: var(--muted); font-size: 14px; }
.reassurance::before { content: "✓"; margin-right: 8px; color: var(--gold); font-weight: 900; }

.hero__note { position: relative; padding: 42px 36px; background: rgba(255,255,255,.88); border: 1px solid rgba(21,81,139,.14); border-radius: 34px 34px 34px 8px; box-shadow: var(--shadow); }
.hero__note::after { content: ""; position: absolute; right: 40px; bottom: -20px; width: 38px; height: 38px; background: #fff; border-right: 1px solid rgba(21,81,139,.14); border-bottom: 1px solid rgba(21,81,139,.14); transform: rotate(45deg); }
.note-label { color: var(--gold); font-size: 11px; font-weight: 800; letter-spacing: .2em; }
.note-quote { margin: 20px 0 34px; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(24px, 3vw, 34px); font-weight: 700; line-height: 1.65; }
.note-person { display: flex; flex-direction: column; color: var(--muted); font-size: 13px; }
.note-person__name { color: var(--ink); font-size: 18px; font-weight: 800; }
.note-marks { position: absolute; right: 28px; top: 26px; display: flex; gap: 5px; }
.note-marks i { width: 6px; height: 6px; border-radius: 50%; background: var(--blue-soft); }

.trust-strip { display: grid; grid-template-columns: repeat(3, 1fr); width: min(calc(100% - 32px), 960px); margin: -28px auto 0; position: relative; z-index: 2; background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
.trust-strip div { padding: 22px 24px; text-align: center; }
.trust-strip div + div { border-left: 1px solid var(--line); }
.trust-strip strong, .trust-strip span { display: block; }
.trust-strip strong { color: var(--blue); font-size: 18px; }
.trust-strip span { color: var(--muted); font-size: 12px; }

.section { padding: clamp(86px, 11vw, 142px) 24px; }
.section--cream { background: var(--cream); }
.section--blue { color: #fff; background: linear-gradient(145deg, #0d355f, #15518b 62%, #23689e); }
.section--story { background: linear-gradient(180deg, #fffdf9, #f4f8fb 48%, #fffdf9); }
.section__inner { width: min(100%, var(--content)); margin: auto; }
.section__inner.narrow { max-width: 860px; }
.section__inner.split { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(40px, 7vw, 96px); align-items: start; }
.section h2, .contact h2 { margin: 0 0 28px; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(31px, 4.5vw, 54px); line-height: 1.45; letter-spacing: -.02em; }
.pc-br, .sp-br { display: none; }
.section-lead { max-width: 760px; margin: 0 auto 52px; color: var(--muted); text-align: center; font-size: 18px; }
.section-lead--light, .section-kicker--light { color: rgba(255,255,255,.76); }
.section--blue h2, .section--blue .section-kicker { text-align: center; }

.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 52px; }
.scene-card { padding: 30px; background: #fff; border: 1px solid rgba(35,50,72,.08); border-radius: 20px; box-shadow: 0 14px 35px rgba(35,50,72,.06); }
.scene-card span { color: var(--gold); font-size: 12px; font-weight: 900; letter-spacing: .16em; }
.scene-card h3 { margin: 8px 0 6px; font-size: 19px; }
.scene-card p { margin: 0; color: var(--muted); font-size: 15px; }
.bridge-copy { margin: 54px 0 0; padding: 30px; text-align: center; background: #fff; border-radius: 20px; }

.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.check-list li { position: relative; padding: 17px 20px 17px 54px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 10px 25px rgba(35,50,72,.05); }
.check-list li::before { content: "✓"; position: absolute; left: 18px; top: 15px; display: grid; place-items: center; width: 24px; height: 24px; color: #fff; background: var(--blue); border-radius: 50%; font-weight: 900; }

.flow-visual { display: block; overflow: hidden; max-width: 980px; margin: 0 auto; border-radius: 26px; box-shadow: 0 26px 70px rgba(0,0,0,.22); }

.case-study-card { display: grid; grid-template-columns: minmax(0, .8fr) minmax(400px, 1.2fr); overflow: hidden; width: min(100%, 780px); margin: 52px auto 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.case-study-card__visual { display: block; align-self: center; height: 300px; margin: 24px 0 24px 24px; overflow: hidden; background: var(--blue-soft); border-radius: 18px; }
.case-study-card__visual img { width: 100%; height: 100%; object-fit: cover; object-position: center top; transition: transform .25s ease; }
.case-study-card__visual:hover img { transform: scale(1.015); }
.case-study-card__body { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: clamp(34px, 5vw, 58px); }
.case-study-card__label, .publication-card__label { display: inline-flex; padding: 6px 12px; color: var(--blue); background: var(--blue-soft); border-radius: 999px; font-size: 11px; font-weight: 900; letter-spacing: .08em; }
.case-study-card__category { margin: 22px 0 0; color: var(--gold); font-size: 12px; font-weight: 900; letter-spacing: .12em; }
.case-study-card h3 { margin: 4px 0 0; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(28px, 3vw, 38px); }
.case-study-card__company { margin: 0 0 18px; color: var(--blue); font-weight: 800; }
.case-study-card__body > p:last-of-type { margin: 0; color: var(--muted); font-size: 15px; }
.case-study-card .button { margin-top: 28px; }
#case-study-title { font-size: clamp(29px, 3.8vw, 46px); }
.publication-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 36px; align-items: center; margin-top: 24px; padding: clamp(30px, 5vw, 48px); color: #fff; background: var(--blue-deep); border-radius: var(--radius); box-shadow: var(--shadow); }
.publication-card__label { color: #fff; background: rgba(255,255,255,.12); }
.publication-card h3 { margin: 16px 0 10px; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(25px, 3.3vw, 36px); line-height: 1.5; }
.publication-card p { max-width: 700px; margin: 0; color: rgba(255,255,255,.76); font-size: 15px; }
.publication-card__link { display: inline-flex; min-height: 54px; padding: 14px 24px; align-items: center; justify-content: center; gap: 12px; color: var(--blue-deep); background: #fff; border-radius: 999px; font-weight: 800; text-decoration: none; white-space: nowrap; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 52px; }
.principles article { padding: 34px 30px; background: #fff; border-top: 4px solid var(--blue); border-radius: 0 0 20px 20px; box-shadow: 0 16px 42px rgba(35,50,72,.08); }
.principles span { color: var(--gold); font-weight: 900; }
.principles h3 { margin: 10px 0 12px; }
.principles p { margin: 0; color: var(--muted); font-size: 15px; }

.story-copy { max-width: 760px; margin: 50px auto 0; }
.story-copy h3 { margin: 58px 0 18px; padding-left: 18px; border-left: 4px solid var(--gold); font-size: clamp(23px, 3vw, 30px); line-height: 1.5; }
.story-copy p { margin: 0 0 22px; }
.story-copy blockquote { margin: 30px 0; padding: 24px 28px; color: var(--blue-deep); background: #fff; border: 1px solid #d9e7f1; border-radius: 18px; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: 20px; font-weight: 700; }
.story-copy .decision-quote { border-color: rgba(199,154,69,.45); background: #fffaf0; }
.story-lp__manga { width: min(100%, 440px); margin: 56px auto; }
.story-lp__manga img { width: 100%; border-radius: 10px; box-shadow: 0 24px 65px rgba(35,50,72,.18); }
.story-copy--after { margin-top: 0; }

.profile-card { position: relative; display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 56px; padding: clamp(40px, 6vw, 72px); background: var(--blue-deep); color: #fff; border-radius: var(--radius); box-shadow: var(--shadow); }
.profile-card__label { writing-mode: vertical-rl; color: rgba(255,255,255,.24); font-size: 48px; font-weight: 900; line-height: 1; letter-spacing: .08em; }
.profile-card .section-kicker { color: #a9cee8; }
.profile-card h2 { margin-bottom: 22px; }
.profile-card p { color: rgba(255,255,255,.82); }
.profile-quote { padding: 22px 26px; border-left: 3px solid var(--gold); background: rgba(255,255,255,.07); font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: 21px; font-weight: 700; }

.steps { list-style: none; margin: 54px auto 0; padding: 0; max-width: 880px; display: grid; gap: 18px; }
.steps li { display: grid; grid-template-columns: 80px 1fr; gap: 24px; align-items: start; padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 18px; }
.steps li > span { display: grid; place-items: center; width: 64px; height: 64px; color: #fff; background: var(--blue); border-radius: 20px 20px 20px 6px; font-weight: 900; }
.steps h3 { margin: 0 0 6px; }
.steps p { margin: 0; color: var(--muted); }

.faq-list { margin-top: 44px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 52px 24px 0; font-weight: 800; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 8px; top: 20px; color: var(--blue); font-size: 24px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -4px 0 24px; padding-right: 48px; color: var(--muted); }

.contact { padding: clamp(90px, 12vw, 150px) 24px 120px; color: #fff; background: var(--blue-deep); text-align: center; }
.contact__inner { width: min(100%, 820px); margin: auto; }
.contact p { color: rgba(255,255,255,.78); }
.button--light { margin-top: 26px; color: var(--blue-deep); background: #fff; box-shadow: none; }
.button--light:disabled { opacity: .72; cursor: not-allowed; }
.contact small { display: block; margin-top: 14px; color: rgba(255,255,255,.58); }
.contact-email a { color: inherit; text-underline-offset: 3px; }
.gmail-helper { display: flex; flex-direction: column; gap: 3px; margin-top: 18px; color: rgba(255,255,255,.72); font-size: 13px; }
.gmail-helper a { color: inherit; font-weight: 800; text-underline-offset: 3px; }

@media (min-width: 861px) {
  .pc-br { display: inline; }
  .pc-nowrap { white-space: nowrap; }
  .note-quote { font-size: 24px; }
  #check-title { font-size: 38px; }
  .contact h2 { font-size: 46px; }
  .floating-cta { right: 12px; bottom: 8px; min-width: 210px; padding: 9px 18px; }
}

.lp-footer { display: flex; justify-content: space-between; gap: 24px; padding: 34px clamp(20px, 5vw, 72px) 110px; color: var(--muted); background: #f6f7f7; font-size: 12px; }
.lp-footer div { display: flex; flex-direction: column; }
.lp-footer strong { color: var(--ink); font-size: 15px; }
.lp-footer p { margin: 0; max-width: 500px; text-align: right; }

.floating-cta { position: fixed; z-index: 40; right: 12px; bottom: 8px; display: flex; flex-direction: column; min-width: 210px; padding: 9px 18px; color: #fff; background: var(--blue); border: 2px solid #fff; border-radius: 999px; box-shadow: 0 12px 34px rgba(13,53,95,.3); text-align: center; text-decoration: none; }
.floating-cta span { font-size: 10px; opacity: .82; }
.floating-cta strong { font-size: 15px; }

@media (max-width: 860px) {
  body { font-size: 16px; }
  .hero__inner, .section__inner.split, .profile-card { grid-template-columns: 1fr; }
  .hero__note { max-width: 560px; }
  .trust-strip { grid-template-columns: 1fr; margin-top: 0; border-radius: 0; width: 100%; }
  .trust-strip div + div { border-left: 0; border-top: 1px solid var(--line); }
  .principles { grid-template-columns: 1fr; }
  .case-study-card, .publication-card { grid-template-columns: 1fr; }
  .publication-card__link { justify-self: start; }
  .profile-card__label { writing-mode: horizontal-tb; font-size: 25px; }
}

@media (max-width: 600px) {
  .sp-br { display: inline; }
  .lp-header { min-height: 62px; padding-inline: 16px; }
  .brand__name { font-size: 15px; }
  .brand__role { font-size: 8px; }
  .header-cta { padding: 9px 13px; font-size: 12px; }
  .hero { padding: 64px 18px 72px; }
  .hero h1 { font-size: clamp(34px, 10.6vw, 47px); }
  .hero__lead { margin-top: 24px; }
  .hero__actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .text-link { text-align: center; }
  .hero__note { padding: 30px 24px; }
  .note-quote { font-size: 24px; }
  .section { padding: 78px 18px; }
  .section h2, .contact h2 { font-size: 33px; }
  .section-lead { text-align: left; font-size: 16px; }
  .scene-grid { grid-template-columns: 1fr; }
  .scene-card { padding: 24px; }
  .bridge-copy { padding: 24px 18px; text-align: left; }
  .flow-visual { border-radius: 18px; }
  .case-study-card { margin-top: 38px; border-radius: 20px; }
  .case-study-card__visual { height: auto; margin: 0; aspect-ratio: 16 / 9; border-radius: 0; }
  .case-study-card__body { padding: 30px 24px 34px; }
  .case-study-card .button { width: 100%; }
  .publication-card { gap: 24px; padding: 30px 24px; border-radius: 20px; }
  .publication-card__link { width: 100%; }
  .story-copy blockquote { padding: 20px; font-size: 18px; }
  .story-lp__manga { width: 100%; }
  .profile-card { gap: 24px; padding: 34px 24px; border-radius: 20px; }
  .steps li { grid-template-columns: 52px 1fr; gap: 16px; padding: 22px 18px; }
  .steps li > span { width: 48px; height: 48px; border-radius: 15px 15px 15px 5px; }
  .lp-footer { flex-direction: column; padding-bottom: 112px; }
  .lp-footer p { text-align: left; }
  .floating-cta { left: auto; right: 14px; bottom: 12px; width: min(230px, calc(100% - 28px)); min-width: 0; padding: 11px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}