:root {
  --navy: #164b60;
  --navy-2: #1f2a33;
  --teal: #1f6f8b;
  --teal-dark: #164b60;
  --teal-soft: #eef9fb;
  --mint: #f5f9fb;
  --line: rgba(31, 111, 139, 0.12);
  --text: #1f2a33;
  --muted: #667783;
  --accent: #7fd3c6;
  --accent-2: #f3c96b;
  --white: #fff;
  --shadow: 0 18px 50px rgba(28, 74, 91, 0.12);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic Light", "Yu Gothic", YuGothic, "Helvetica Neue", Arial, sans-serif;
  font-weight: 300;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  line-height: 1.85;
  letter-spacing: 0;
}

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

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

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.7);
  border-bottom: 0;
  backdrop-filter: blur(14px);
  animation: header-drop 0.64s ease both;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--navy);
  font-weight: 400;
}

.brand img {
  width: 117px;
}

.brand span {
  color: var(--teal);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 400;
}

.site-nav a {
  position: relative;
  padding: 10px 14px;
}

.site-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: #bf0000;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s ease;
}

.site-nav a:hover::after {
  transform: scaleX(1);
}

.site-nav a:hover {
  color: #bf0000;
}

.nav-cta {
  color: var(--white);
  background: linear-gradient(135deg, var(--teal) 0%, var(--accent) 100%);
  border-radius: 999px;
  box-shadow: 0 10px 24px rgba(31, 111, 139, 0.18);
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.narrow {
  width: min(880px, calc(100% - 40px));
}

.section {
  padding: clamp(78px, 9vw, 110px) 0;
}

.section-angle {
  position: relative;
  overflow: hidden;
}

.section-angle::before,
.section-angle::after {
  content: "";
  position: absolute;
  inset: 9% 7% auto auto;
  width: 260px;
  height: 260px;
  transform: none;
  border: 0;
  border-radius: 999px;
  background: rgba(127, 211, 198, 0.22);
  filter: blur(1px);
  pointer-events: none;
}

.section-angle::after {
  inset: auto auto 10% 5%;
  width: 160px;
  height: 160px;
  background: rgba(243, 201, 107, 0.18);
  opacity: 0.8;
}

.hero {
  min-height: 720px;
  padding: 120px 0 90px;
  background:
    radial-gradient(circle at 15% 15%, rgba(127, 211, 198, 0.35), transparent 28%),
    radial-gradient(circle at 90% 10%, rgba(243, 201, 107, 0.25), transparent 30%),
    linear-gradient(135deg, #eef9fb 0%, #ffffff 48%, #f7fbff 100%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.75fr);
  gap: clamp(26px, 3.2vw, 46px);
  align-items: center;
}

.hero-copy {
  animation: hero-copy-in 0.82s 0.12s ease both;
}

.hero-visual {
  position: relative;
  animation: hero-visual-in 0.88s 0.22s ease both;
}

.hero-visual img {
  width: min(620px, 100%);
  filter: drop-shadow(0 18px 38px rgba(28, 74, 91, 0.12));
}

.audience {
  display: inline-block;
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.12em;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--navy);
  line-height: 1.35;
  font-weight: 400;
}

h1,
h2 {
  font-weight: 500;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(34px, 3.4vw, 48px);
  line-height: 1.28;
  letter-spacing: 0.01em;
  word-break: keep-all;
  line-break: strict;
}

h1 span {
  display: block;
  margin-top: 12px;
  color: var(--navy);
  font-size: clamp(30px, 3.5vw, 48px);
}

.headline-main {
  margin-top: 0;
  font-size: clamp(38px, 3.8vw, 50px);
}

.headline-support {
  font-size: clamp(28px, 2.7vw, 36px);
  line-height: 1.38;
}

.headline-main span,
.headline-support span {
  display: inline-block;
  white-space: nowrap;
}

.lead {
  width: min(900px, 100%);
  margin: 0;
  color: var(--text);
  font-size: clamp(16px, 1.32vw, 18px);
  font-weight: 300;
  line-height: 1.85;
  word-break: keep-all;
  line-break: strict;
}

.lead span {
  display: block;
}

.lead-main {
  white-space: nowrap;
}

@media (min-width: 1280px) {
  .hero .container {
    width: min(1280px, calc(100% - 64px));
  }

  h1 {
    max-width: 940px;
  }

  h1 span {
    max-width: 940px;
    font-size: clamp(30px, 2.8vw, 40px);
  }

  .headline-main {
    font-size: clamp(42px, 3.9vw, 50px);
  }

  .headline-support {
    font-size: clamp(30px, 2.55vw, 36px);
  }

  .lead {
    font-size: 15.5px;
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 56px;
  padding: 0 28px;
  border: 1px solid var(--teal);
  border-radius: 999px;
  font-weight: 400;
  line-height: 1.4;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.button::before {
  content: "";
  position: absolute;
  inset: -60% auto -60% -40%;
  width: 36%;
  transform: rotate(18deg);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transition: left 0.44s ease;
}

.button:hover::before {
  left: 108%;
}

.button::after {
  content: "";
  width: 9px;
  height: 9px;
  margin-left: 14px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
}

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

.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--teal) 0%, var(--accent) 100%);
  box-shadow: 0 14px 30px rgba(31, 111, 139, 0.22);
}

.secondary {
  color: var(--teal);
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(31, 111, 139, 0.18);
}

.service-card:hover,
.reason-grid article:hover,
.flow-list li:hover {
  transform: translateY(-5px);
  border-color: rgba(52, 143, 131, 0.72);
  box-shadow: var(--shadow);
}

.section-head {
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: 36px;
  text-align: center;
}

.section-head.wide {
  width: min(980px, 100%);
}

.section-head h2 {
  font-size: clamp(28px, 3.3vw, 44px);
  letter-spacing: 0.04em;
  word-break: keep-all;
  line-break: strict;
}

.service-heading {
  white-space: nowrap;
}

.service-heading span {
  display: inline-block;
  white-space: nowrap;
}

.section-head p:not(.eyebrow) {
  margin: 16px 0 0;
  color: var(--muted);
  font-weight: 400;
}

.check-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  width: calc((100% - 24px) / 2);
  min-height: 132px;
  padding: 28px 28px 28px 76px;
  border: 1px solid rgba(31, 111, 139, 0.08);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
  color: var(--navy);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.65;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  left: 28px;
  top: 32px;
  width: 34px;
  height: 34px;
  border: 2px solid var(--teal);
  border-radius: 50%;
}

.check-list li::after {
  content: "";
  position: absolute;
  left: 12px;
  left: 40px;
  top: 43px;
  width: 11px;
  height: 7px;
  border-left: 3px solid var(--teal);
  border-bottom: 3px solid var(--teal);
  transform: rotate(-45deg);
}

.service {
  position: relative;
  background: var(--mint);
}

.service .container {
  position: relative;
  z-index: 1;
}

.section-visual {
  position: absolute;
  z-index: 0;
  top: -36px;
  right: -120px;
  width: min(48vw, 520px);
  opacity: 0.22;
  pointer-events: none;
}

.section-visual img {
  width: 100%;
  border-radius: 40px;
  filter: saturate(0.85);
  mask-image: radial-gradient(circle at 55% 45%, #000 0 46%, rgba(0, 0, 0, 0.55) 62%, transparent 76%);
}

.service-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  position: relative;
  min-height: 270px;
  padding: 34px 30px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 40px rgba(28, 74, 91, 0.08);
  overflow: hidden;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.card-icon,
.reason-icon,
.contact-heading-icon {
  width: 56px;
  height: 56px;
  object-fit: contain;
}

.card-icon {
  position: absolute;
  right: 24px;
  top: 24px;
  z-index: 1;
  opacity: 0.9;
}

.service-card::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 130px;
  height: 130px;
  border-radius: 999px;
  background: rgba(127, 211, 198, 0.16);
}

.service-card span,
.reason-grid span,
.flow-list span {
  color: var(--teal);
  font-size: 15px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.14em;
}

.service-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin-bottom: 22px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(31, 111, 139, 0.12), rgba(127, 211, 198, 0.22));
}

.service-card h3 {
  position: relative;
  z-index: 1;
  margin: 0 0 14px;
  padding-bottom: 0;
  border-bottom: 0;
  font-size: 22px;
}

.service-card p,
.reason-grid p,
.flow-list p,
.faq-list p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 400;
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 0;
  border-bottom: 0;
}

.reason-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
  margin-bottom: 46px;
  padding: clamp(26px, 4vw, 38px);
  background: #ffffff;
  border: 1px solid rgba(31, 111, 139, 0.1);
  border-radius: 34px;
  box-shadow: var(--shadow);
}

.reason-feature img {
  width: 100%;
  border-radius: 26px;
}

.reason-feature h3 {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.45;
}

.reason-feature p:not(.eyebrow) {
  margin: 18px 0 0;
  color: var(--muted);
}

.reason-grid article {
  min-height: 250px;
  padding: 28px 26px;
  text-align: center;
  background: #ffffff;
  border: 1px solid rgba(31, 111, 139, 0.1);
  border-radius: var(--radius);
  box-shadow: 0 12px 34px rgba(28, 74, 91, 0.07);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.reason-icon {
  margin: 0 auto 12px;
}

.reason-grid article + article {
  border-left: 1px solid rgba(31, 111, 139, 0.1);
}

.reason-grid h3 {
  margin-top: 16px;
  font-size: 20px;
}

.reason-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 62px;
  height: 62px;
  border-radius: 18px;
  background: var(--mint);
}

.flow {
  background: var(--mint);
}

.flow-list {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.flow-list li {
  position: relative;
  min-height: 220px;
  padding: 30px;
  background: var(--white);
  border: 0;
  border-radius: var(--radius);
  box-shadow: 0 14px 40px rgba(28, 74, 91, 0.08);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.flow-list li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -18px;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--teal);
  border-right: 2px solid var(--teal);
  transform: translateY(-50%) rotate(45deg);
}

.flow-list strong {
  display: block;
  margin-top: 14px;
  color: var(--navy);
  font-size: 20px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  background: var(--white);
  border: 1px solid rgba(31, 111, 139, 0.12);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(28, 74, 91, 0.06);
  overflow: hidden;
  transition: border-color 0.22s ease, box-shadow 0.22s ease;
}

details[open] {
  border-color: rgba(52, 143, 131, 0.72);
  box-shadow: 0 12px 30px rgba(24, 79, 89, 0.08);
}

summary {
  position: relative;
  cursor: pointer;
  padding: 24px 64px 24px 26px;
  color: var(--navy);
  font-size: 17px;
  font-weight: 400;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::before,
summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 26px;
  width: 14px;
  height: 2px;
  border-radius: 999px;
  background: var(--teal);
}

summary::after {
  transform: rotate(90deg);
  transition: transform 0.2s ease;
}

details[open] summary::after {
  transform: rotate(0deg);
}

details p {
  padding: 0 24px 24px;
}

.contact {
  padding: 110px 0;
  background:
    radial-gradient(circle at 15% 10%, rgba(127, 211, 198, 0.25), transparent 24%),
    radial-gradient(circle at 90% 80%, rgba(243, 201, 107, 0.22), transparent 28%),
    linear-gradient(135deg, #eef9fb 0%, #ffffff 100%);
}

.contact-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 380px);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
  padding: clamp(42px, 5vw, 64px);
  background: rgba(255, 255, 255, 0.82);
  border: 0;
  border-radius: 34px;
  box-shadow: var(--shadow);
}

.contact-visual {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  width: min(380px, 100%) !important;
  min-width: 260px;
  max-width: 100%;
  height: auto !important;
  justify-self: end;
  object-fit: contain;
  border-radius: 24px;
  box-shadow: 0 12px 32px rgba(28, 74, 91, 0.08);
}

.contact-copy .button {
  margin-top: 28px;
}

.contact-heading-icon {
  margin-bottom: 16px;
}

.contact h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 500;
}

.contact p:not(.eyebrow) {
  margin: 12px 0 0;
  color: var(--muted);
  font-weight: 400;
}

.site-footer {
  padding: 48px 0;
  color: rgba(255, 255, 255, 0.72);
  background: #2c2929;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-inner img {
  width: 122px;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.68s ease var(--reveal-delay, 0ms), transform 0.68s ease var(--reveal-delay, 0ms);
}

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

@keyframes header-drop {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-copy-in {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes hero-visual-in {
  from {
    opacity: 0;
    transform: translateX(24px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes typing-dots {
  0%,
  100% {
    opacity: 0.45;
    transform: translate(-50%, -50%) translateY(0);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) translateY(-2px);
  }
}

@keyframes soft-rotate {
  0%,
  100% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(7deg);
  }
}

@keyframes soft-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 960px) {
  .site-nav a:not(.nav-cta) {
    display: none;
  }

  .hero-grid,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    width: min(860px, 100%);
    margin-inline: auto;
  }

  .reason-feature {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .headline-main span,
  .headline-support span,
  .service-heading span {
    display: block;
  }

  .service-heading {
    white-space: normal;
  }

  .service-grid,
  .reason-grid,
  .flow-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .check-list li {
    width: 100%;
  }

  .reason-grid article:nth-child(3),
  .reason-grid article:nth-child(4) {
    border-top: 1px solid rgba(31, 111, 139, 0.1);
  }

  .flow-list li:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 64px;
    padding-inline: 16px;
  }

  .brand span {
    display: none;
  }

  .site-nav {
    font-size: 13px;
  }

  .site-nav a {
    padding: 9px 11px;
  }

  .container,
  .narrow {
    width: min(100% - 28px, 1120px);
  }

  .section {
    padding: 74px 0;
  }

  .hero {
    padding: 80px 0 70px;
  }

  h1 {
    font-size: clamp(32px, 10vw, 42px);
  }

  h1 span {
    font-size: clamp(26px, 8vw, 34px);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .service-grid,
  .reason-grid,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .reason-feature,
  .contact-box {
    border-radius: 26px;
  }

  .section-visual {
    top: 18px;
    right: -140px;
    width: 360px;
    opacity: 0.14;
  }

  .service-card {
    background: rgba(255, 255, 255, 0.92);
  }

  .section-head {
    margin-bottom: 34px;
    text-align: left;
  }

  .reason-grid article,
  .reason-grid article + article {
    border-left: 0;
    border-top: 1px solid rgba(31, 111, 139, 0.1);
  }

  .reason-grid article:first-child {
    border-top: 0;
  }

  .contact-box {
    padding: 38px 24px;
    border-radius: 26px;
    text-align: left;
  }

  .footer-inner {
    display: grid;
  }
}