:root {
  --ink: #142033;
  --ink-soft: #415066;
  --muted: #6f7b89;
  --paper: #f4f6f4;
  --paper-warm: #fbfcfa;
  --line: #d9e0e0;
  --line-dark: rgba(255, 255, 255, 0.18);
  --accent: #8aa27d;
  --accent-deep: #526b56;
  --sky: #dce9ee;
  --night: #142033;
  --shadow: 0 24px 80px rgba(26, 43, 57, 0.1);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Avenir Next", "Hiragino Sans", "Yu Gothic", YuGothic, Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::selection {
  color: var(--paper-warm);
  background: var(--accent-deep);
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 8px 14px;
  color: var(--paper-warm);
  background: var(--night);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
  border-bottom: 1px solid transparent;
  background: rgba(244, 246, 244, 0.72);
  backdrop-filter: blur(18px);
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(251, 252, 250, 0.92);
  box-shadow: 0 12px 30px rgba(20, 32, 51, 0.05);
}

.header-inner {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
}

.brand-copy {
  display: grid;
  line-height: 1.1;
}

.brand-name {
  color: var(--ink);
  font-size: 0.99rem;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.brand-kicker {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.57rem;
  font-weight: 700;
  letter-spacing: 0.21em;
  text-transform: uppercase;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.desktop-nav a {
  position: relative;
  padding: 8px 0;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--accent-deep);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  background: var(--paper-warm);
  font: inherit;
  cursor: pointer;
}

.mobile-nav {
  display: none;
  padding: 4px 24px 20px;
  border-top: 1px solid var(--line);
  background: var(--paper-warm);
}

.mobile-nav a {
  display: block;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  font-weight: 700;
}

.mobile-nav a:last-child {
  border-bottom: 0;
}

.hero {
  position: relative;
  min-height: 780px;
  overflow: hidden;
  background:
    radial-gradient(circle at 77% 22%, rgba(204, 224, 227, 0.72), transparent 28%),
    radial-gradient(circle at 12% 18%, rgba(225, 235, 216, 0.56), transparent 25%),
    linear-gradient(135deg, #f9faf8 0%, #eef3f2 100%);
}

.hero::after {
  position: absolute;
  right: -12vw;
  bottom: -22vw;
  width: min(58vw, 720px);
  height: min(58vw, 720px);
  border: 1px solid rgba(82, 107, 86, 0.13);
  border-radius: 50%;
  content: "";
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 780px;
  align-items: center;
  grid-template-columns: minmax(0, 1.06fr) minmax(360px, 0.94fr);
  gap: clamp(42px, 8vw, 120px);
  padding-top: 82px;
  padding-bottom: 64px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-deep);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero-title {
  max-width: 720px;
  margin: 0;
  font-size: clamp(3.25rem, 7.8vw, 7.6rem);
  font-weight: 650;
  letter-spacing: -0.08em;
  line-height: 0.99;
}

.hero-title .accent-line {
  color: var(--accent-deep);
}

.hero-lead {
  max-width: 520px;
  margin: 30px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.5vw, 1.14rem);
  line-height: 2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 13px;
  padding: 12px 19px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--paper-warm);
  background: var(--night);
  box-shadow: 0 12px 24px rgba(20, 32, 51, 0.15);
}

.button-primary:hover {
  background: var(--accent-deep);
  box-shadow: 0 16px 28px rgba(82, 107, 86, 0.19);
}

.button-secondary {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.48);
}

.button-secondary:hover {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.9);
}

.arrow {
  display: inline-grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.13);
  font-size: 1rem;
  line-height: 1;
}

.button-secondary .arrow {
  color: var(--accent-deep);
  background: rgba(138, 162, 125, 0.16);
}

.hero-visual {
  position: relative;
  min-height: 510px;
}

.visual-orbit {
  position: absolute;
  border: 1px solid rgba(82, 107, 86, 0.23);
  border-radius: 50%;
  transform: rotate(-18deg);
}

.orbit-one {
  top: 10%;
  right: 2%;
  width: 78%;
  height: 62%;
}

.orbit-two {
  top: 22%;
  right: 12%;
  width: 78%;
  height: 62%;
  border-color: rgba(20, 32, 51, 0.13);
  transform: rotate(36deg);
}

.orbit-dot {
  position: absolute;
  top: 29%;
  right: 9%;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent-deep);
  box-shadow: 0 0 0 9px rgba(138, 162, 125, 0.17), 0 0 0 18px rgba(138, 162, 125, 0.08);
}

.visual-card {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  width: min(100%, 390px);
  min-height: 360px;
  flex-direction: column;
  justify-content: space-between;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.76), rgba(222, 235, 235, 0.48));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(18px);
  transform: translate(-50%, -50%) rotate(4deg);
}

.visual-topline,
.visual-bottomline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.visual-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.visual-status::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-deep);
  content: "";
  box-shadow: 0 0 0 4px rgba(138, 162, 125, 0.17);
}

.visual-middle {
  padding: 26px 0;
}

.visual-k {
  margin: 0;
  color: var(--accent-deep);
  font-size: clamp(5.5rem, 12vw, 8.8rem);
  font-weight: 700;
  letter-spacing: -0.1em;
  line-height: 0.8;
}

.visual-logo {
  width: 210px;
  height: 210px;
  margin: 0 0 6px -4px;
  object-fit: contain;
}

.visual-name {
  margin: 18px 0 0;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.visual-copy {
  max-width: 230px;
  margin: 7px 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.7;
}

.visual-bottomline {
  padding-top: 16px;
  border-top: 1px solid rgba(20, 32, 51, 0.13);
}

.trust-strip {
  position: relative;
  z-index: 2;
  margin-top: -1px;
  color: var(--paper-warm);
  background: var(--night);
}

.trust-inner {
  display: grid;
  min-height: 116px;
  align-items: center;
  grid-template-columns: 1.1fr 1fr 1fr 1fr;
  gap: 24px;
}

.trust-label {
  color: #b9c7bd;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.trust-item {
  padding-left: 22px;
  border-left: 1px solid var(--line-dark);
  color: #f3f5f2;
  font-size: 0.84rem;
  font-weight: 700;
}

.trust-item span {
  display: block;
  margin-top: 3px;
  color: #a9b4c0;
  font-size: 0.68rem;
  font-weight: 500;
}

.section {
  padding: 132px 0;
}

.section-light {
  background: var(--paper-warm);
}

.section-dark {
  color: var(--paper-warm);
  background: var(--night);
}

.section-heading {
  max-width: 650px;
  margin-bottom: 58px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  font-weight: 650;
  letter-spacing: -0.07em;
  line-height: 1.03;
}

.section-heading p:last-child {
  max-width: 550px;
  margin: 22px 0 0;
  color: var(--ink-soft);
}

.section-dark .section-heading p:last-child {
  color: #b8c2cc;
}

.about-grid {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: clamp(40px, 9vw, 140px);
}

.about-lead {
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1.35rem, 2.5vw, 2.1rem);
  letter-spacing: -0.04em;
  line-height: 1.55;
}

.about-copy {
  margin: 22px 0 0;
  color: var(--ink-soft);
}

.stat-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, #f8faf7, #edf3f1);
}

.stat-card + .stat-card {
  margin-top: 14px;
}

.stat-value {
  margin: 0;
  color: var(--accent-deep);
  font-size: 2rem;
  font-weight: 750;
  letter-spacing: -0.05em;
  line-height: 1;
}

.stat-label {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.value-card {
  min-height: 300px;
  padding: 28px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  transition: transform 180ms ease, background 180ms ease;
}

.value-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-5px);
}

.value-number {
  color: #a9c39d;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.value-card h3 {
  margin: 72px 0 14px;
  color: #f5f7f4;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.35;
}

.value-card p {
  margin: 0;
  color: #b8c2cc;
  font-size: 0.9rem;
  line-height: 1.8;
}

.contact-section {
  padding-top: 106px;
  padding-bottom: 118px;
}

.contact-grid {
  display: grid;
  align-items: end;
  grid-template-columns: minmax(0, 1fr) minmax(270px, 0.72fr);
  gap: 40px;
}

.contact-copy {
  max-width: 540px;
  color: #b8c2cc;
}

.contact-email {
  display: inline-block;
  margin-top: 26px;
  padding-bottom: 6px;
  border-bottom: 1px solid #a9c39d;
  color: #f5f7f4;
  font-size: clamp(1.1rem, 2.5vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.contact-email:hover {
  color: #a9c39d;
}

.contact-note {
  padding: 24px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  color: #b8c2cc;
  font-size: 0.84rem;
}

.contact-note strong {
  display: block;
  margin-bottom: 9px;
  color: #f5f7f4;
}

.site-footer {
  display: grid;
  align-items: center;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  padding: 28px max(24px, calc((100vw - 1180px) / 2));
  color: var(--ink-soft);
  background: #edf1ef;
  font-size: 0.75rem;
}

.site-footer .brand-name {
  font-size: 0.88rem;
}

.site-footer .brand-kicker {
  font-size: 0.5rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  font-weight: 700;
}

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

.copyright {
  margin: 0;
  text-align: right;
}

/* Privacy page */
.policy-main {
  width: min(900px, calc(100% - 48px));
  margin: 0 auto;
  padding: 164px 0 100px;
}

.policy-header {
  max-width: 760px;
  margin-bottom: 44px;
}

.policy-header h1 {
  margin: 0;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  font-weight: 650;
  letter-spacing: -0.08em;
  line-height: 1.03;
}

.policy-lead {
  margin: 24px 0 12px;
  color: var(--ink-soft);
}

.policy-updated {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.policy-card {
  padding: clamp(25px, 5vw, 54px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.policy-card section + section {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.policy-card h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: clamp(1.22rem, 2.4vw, 1.62rem);
  letter-spacing: -0.03em;
  line-height: 1.4;
}

.policy-card p {
  margin: 0 0 13px;
  color: var(--ink-soft);
}

.policy-card p:last-child {
  margin-bottom: 0;
}

.policy-card ul {
  margin: 10px 0 14px;
  padding-left: 1.3em;
  color: var(--ink-soft);
}

.policy-card li + li {
  margin-top: 7px;
}

.policy-card a,
.policy-back {
  color: var(--accent-deep);
  font-weight: 800;
}

.policy-card a:hover,
.policy-back:hover {
  color: var(--ink);
}

.policy-contact {
  margin-top: 18px;
  padding: 18px 20px;
  border-left: 4px solid var(--accent-deep);
  background: #edf3ed;
}

.policy-contact p {
  margin: 0;
}

.policy-back {
  display: inline-block;
  margin-top: 28px;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.78fr);
    gap: 35px;
  }

  .hero-visual {
    min-height: 440px;
  }

  .visual-card {
    min-height: 320px;
  }

  .trust-inner {
    grid-template-columns: repeat(2, 1fr);
    padding: 28px 0;
  }

  .trust-label {
    grid-column: 1 / -1;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }

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

  .copyright {
    grid-column: 1 / -1;
    text-align: left;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 36px, 560px);
  }

  .header-inner {
    min-height: 72px;
  }

  .desktop-nav {
    display: none;
  }

  .menu-button {
    display: inline-grid;
    place-items: center;
  }

  .mobile-nav:not([hidden]) {
    display: block;
  }

  .hero,
  .hero-inner {
    min-height: auto;
  }

  .hero-inner {
    display: block;
    padding-top: 150px;
    padding-bottom: 70px;
  }

  .hero-title {
    font-size: clamp(3.25rem, 16vw, 5.5rem);
  }

  .hero-lead {
    margin-top: 23px;
    line-height: 1.85;
  }

  .hero-actions {
    margin-top: 28px;
  }

  .hero-visual {
    min-height: 400px;
    margin-top: 34px;
  }

  .orbit-one {
    right: 0;
    width: 92%;
  }

  .orbit-two {
    right: 4%;
    width: 88%;
  }

  .visual-card {
    width: min(88%, 350px);
    min-height: 300px;
    padding: 24px;
  }

  .visual-k {
    font-size: 6.8rem;
  }

  .visual-logo {
    width: 176px;
    height: 176px;
  }

  .trust-inner {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 28px 0 34px;
  }

  .trust-label {
    grid-column: auto;
  }

  .trust-item {
    padding: 10px 0 0;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .section {
    padding: 90px 0;
  }

  .section-heading {
    margin-bottom: 38px;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

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

  .value-card {
    min-height: 240px;
  }

  .value-card h3 {
    margin-top: 52px;
  }

  .site-footer {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 26px 18px;
  }

  .footer-nav {
    justify-content: flex-start;
    gap: 13px 18px;
  }

  .copyright {
    text-align: left;
  }

  .policy-main {
    width: min(100% - 36px, 560px);
    padding-top: 132px;
    padding-bottom: 76px;
  }

  .policy-card {
    border-radius: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}