:root {
  --bg: #f3efe6;
  --bg-soft: #f8f5ee;
  --surface: #fffdf8;
  --surface-strong: #f7f1e6;
  --ink: #1d2a31;
  --muted: #49575f;
  --line: #d7cfbf;
  --accent: #0e7a70;
  --accent-deep: #0b5f63;
  --accent-ink: #0f3f5a;
  --warning: #9a5b1b;
  --radius: 18px;
  --max: 1080px;
  --shadow-soft: 0 16px 34px rgba(22, 34, 45, 0.08);
  --font-sans: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-serif: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 4%, rgba(14, 122, 112, 0.15), transparent 32%),
    radial-gradient(circle at 88% 12%, rgba(154, 91, 27, 0.12), transparent 30%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 56%, #fff 100%);
  font-family: var(--font-sans);
  line-height: 1.9;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 0 24px;
}

.section-space {
  padding: 84px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(8px);
  background: rgba(248, 244, 234, 0.86);
  border-bottom: 1px solid rgba(29, 42, 49, 0.09);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 74px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 22px;
  height: 22px;
  display: block;
  flex-shrink: 0;
  transform-origin: center;
  will-change: transform;
}

.brand-text {
  display: inline-flex;
  gap: 9px;
  align-items: baseline;
  font-family: "Righteous", var(--font-sans);
  font-size: 21px;
  letter-spacing: 0.02em;
}

.brand-text small {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}

.nav a {
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.22s ease, border-color 0.22s ease;
}

.nav a:hover {
  color: var(--accent-deep);
  border-bottom-color: var(--accent);
}

.hero {
  position: relative;
  overflow: clip;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 16px 0 0 auto;
  width: min(420px, 62vw);
  height: 220px;
  border-radius: 220px 0 0 220px;
  background: linear-gradient(135deg, rgba(14, 122, 112, 0.18), rgba(15, 63, 90, 0.06));
  pointer-events: none;
}

.hero-inner {
  position: relative;
}

.kicker {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-ink);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.45;
}

h1 {
  margin-top: 16px;
  font-size: clamp(30px, 5.3vw, 52px);
  font-family: var(--font-serif);
  letter-spacing: 0.01em;
}

h2 {
  margin-top: 6px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.6vw, 36px);
}

h3 {
  font-size: 21px;
  font-family: var(--font-serif);
}

.lead {
  max-width: 70ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.actions {
  margin-top: 30px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(14, 122, 112, 0.35);
  padding: 10px 16px;
  min-height: 44px;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-ink);
  background: #fff;
  transition: transform 0.24s ease, box-shadow 0.24s ease, background-color 0.24s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(15, 63, 90, 0.12);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-ink) 100%);
  border-color: transparent;
  color: #fff;
}

.highlights,
.hero-services {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.highlights li,
.hero-services li {
  margin: 0;
  padding: 6px 12px;
  border: 1px solid rgba(14, 122, 112, 0.25);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  color: var(--muted);
  font-size: 13px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--accent-ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.section-label::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 10px;
}

p {
  margin: 14px 0 0;
  color: var(--muted);
}

.section-intro {
  max-width: 72ch;
  margin-top: 12px;
}

.about-points {
  margin: 14px 0 0;
  padding-left: 18px;
}

.about-points li {
  margin: 4px 0;
  color: var(--muted);
}

br.sp-only {
  display: none;
}

.two-col {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 24px;
  align-items: start;
}

.profile-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 20px;
  box-shadow: var(--shadow-soft);
}

.profile-card img {
  border-radius: 50%;
  border: 2px solid rgba(14, 122, 112, 0.26);
  width: min(100%, 220px);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center;
  margin-inline: auto;
  box-shadow: 0 10px 24px rgba(15, 63, 90, 0.14);
}

.profile-card h3 {
  margin-top: 18px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-ink);
}

.founder-name {
  margin-top: 8px;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.founder-name-en {
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.service-grid {
  margin-top: 22px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.service-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.service-card p {
  margin-top: 10px;
}

.accent-section {
  background: linear-gradient(180deg, rgba(14, 122, 112, 0.1) 0%, rgba(255, 255, 255, 0.75) 100%);
  border-top: 1px solid rgba(14, 122, 112, 0.18);
  border-bottom: 1px solid rgba(14, 122, 112, 0.15);
}

.flow-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  counter-reset: flow-step;
}

.flow-list li {
  position: relative;
  counter-increment: flow-step;
  border: 1px solid rgba(14, 122, 112, 0.26);
  background: rgba(255, 255, 255, 0.78);
  border-radius: var(--radius);
  padding: 20px 20px 20px 58px;
  box-shadow: var(--shadow-soft);
}

.flow-list li::before {
  content: counter(flow-step);
  position: absolute;
  left: 18px;
  top: 18px;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-ink));
}

.flow-list h3 {
  margin: 0;
  font-size: 19px;
}

.flow-list p {
  margin-top: 8px;
}

.works-grid {
  margin-top: 22px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.work-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.work-card.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
}

.work-media {
  border-right: 1px solid var(--line);
  padding: 16px;
  background: rgba(14, 122, 112, 0.05);
  display: grid;
  place-items: center;
}

.work-media img {
  width: 100%;
  max-height: 220px;
  object-fit: contain;
  border: 1px solid rgba(29, 42, 49, 0.12);
  border-radius: 12px;
  background: #fff;
}

.work-body {
  padding: 20px;
}

.work-body h3 {
  margin-top: 7px;
  font-size: 19px;
}

.work-body p {
  margin-top: 8px;
}

.works-note {
  margin-top: 16px;
  font-size: 13px;
}

.case-grid {
  margin-top: 22px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
  padding: 22px;
}

.work-tag {
  margin-top: 0;
  color: var(--warning);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 700;
}

.case-card h3 {
  margin-top: 7px;
  font-size: 19px;
}

.case-card p {
  margin-top: 8px;
}

.blog-grid {
  margin-top: 22px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.blog-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  padding: 22px;
}

.blog-date {
  margin: 0;
  color: var(--warning);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 700;
}

.blog-card h3 {
  margin-top: 8px;
  font-size: 19px;
}

.blog-card p {
  margin-top: 8px;
}

.faq-list {
  margin-top: 22px;
  display: grid;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  padding: 14px 16px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--ink);
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item[open] summary {
  color: var(--accent-deep);
}

.faq-item p {
  margin-top: 10px;
}

.contact-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface) 0%, var(--surface-strong) 100%);
  box-shadow: var(--shadow-soft);
  padding: 28px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
}

.contact-points {
  margin-top: 14px;
  padding-left: 18px;
  color: var(--muted);
}

.contact-points li {
  margin: 4px 0;
}

.contact-actions {
  display: grid;
  gap: 10px;
  align-content: center;
}

.site-footer {
  border-top: 1px solid rgba(29, 42, 49, 0.14);
  padding: 24px 0 14px;
  background: rgba(255, 255, 255, 0.6);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(29, 42, 49, 0.12);
}

.footer-brand .brand-text {
  font-size: 20px;
}

.footer-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.footer-nav a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.footer-nav a:hover {
  color: var(--accent-deep);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
}

.footer-inner p {
  margin: 0;
  font-size: 13px;
}

.footer-inner a {
  font-size: 13px;
  color: var(--accent-ink);
  font-weight: 700;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.66s ease, transform 0.66s ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1040px) {
  .works-grid,
  .case-grid,
  .blog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .work-card.featured {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  .section-space {
    padding: 62px 0;
  }

  .two-col,
  .contact-box,
  .flow-list,
  .work-card.featured,
  .service-grid,
  .case-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .works-grid {
    grid-template-columns: 1fr;
  }

  .work-media {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .footer-top,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-nav {
    justify-content: flex-start;
  }

  .header-inner {
    min-height: 64px;
  }

  .nav {
    gap: 12px;
  }

  .hero::before {
    width: 76vw;
    height: 140px;
  }
}

@media (max-width: 560px) {
  .site-header .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  br.pc-only {
    display: none;
  }

  br.sp-only {
    display: inline;
  }

  .container {
    padding: 0 16px;
  }

  .brand-text {
    font-size: 18px;
  }

  .brand-text small {
    display: none;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    margin-top: 2px;
  }

  .header-inner {
    flex-wrap: wrap;
    padding: 8px 0 12px;
  }

  .actions {
    gap: 8px;
  }

  .btn {
    width: 100%;
  }

  .contact-box {
    padding: 20px;
  }
}