:root {
  --ink: #1d2428;
  --muted: #667278;
  --line: #dfe5e7;
  --paper: #ffffff;
  --soft: #f4f7f5;
  --accent: #f07a24;
  --accent-dark: #bd5210;
  --teal: #1e746d;
  --shadow: 0 18px 55px rgba(26, 36, 40, 0.12);
  --max: 1120px;
  --header: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, Arial, sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}

body.is-nav-open {
  overflow: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: var(--paper);
  transition: opacity 0.55s ease, visibility 0.55s ease;
}

.loading-screen__mark {
  width: 54px;
  height: 54px;
  border: 3px solid #e6ecee;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.loading-screen p {
  position: absolute;
  top: calc(50% + 48px);
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  letter-spacing: 0;
}

.loading-screen.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.splash-wipe {
  position: fixed;
  inset: 0;
  z-index: 990;
  pointer-events: none;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
}

.splash-wipe.is-active {
  animation: splashWipe 1s cubic-bezier(.77, 0, .18, 1) both;
}

.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 900;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.68);
}

.progress-bar span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--teal));
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 800;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: var(--header);
  padding: 14px clamp(18px, 4vw, 48px);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(223, 229, 231, 0.55);
  backdrop-filter: blur(18px);
  transition: box-shadow 0.3s ease, min-height 0.3s ease;
}

.site-header.is-scrolled {
  min-height: 64px;
  box-shadow: 0 12px 34px rgba(20, 32, 36, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.brand__symbol {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: #fff;
  background: var(--ink);
  border-radius: 6px;
  font-size: 0.9rem;
}

.brand__text {
  font-size: 1rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.2vw, 28px);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding: 10px 0;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 2px;
  content: "";
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.site-nav a.is-current,
.site-nav a:hover {
  color: var(--ink);
}

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

.menu-button {
  display: none;
  position: relative;
  z-index: 820;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.menu-button span:not(.visually-hidden) {
  position: absolute;
  left: 12px;
  width: 20px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease, top 0.25s ease;
}

.menu-button span:nth-child(1) {
  top: 15px;
}

.menu-button span:nth-child(2) {
  top: 22px;
}

.menu-button span:nth-child(3) {
  top: 29px;
}

.menu-button[aria-expanded="true"] span:nth-child(1) {
  top: 22px;
  transform: rotate(45deg);
}

.menu-button[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-button[aria-expanded="true"] span:nth-child(3) {
  top: 22px;
  transform: rotate(-45deg);
}

.section-anchor {
  scroll-margin-top: calc(var(--header) + 16px);
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 100vh;
  padding: calc(var(--header) + 54px) clamp(18px, 6vw, 76px) 70px;
  overflow: hidden;
  isolation: isolate;
}

.hero__image {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero__image::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.82) 42%, rgba(255, 255, 255, 0.18) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(244, 247, 245, 0.86));
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__content {
  width: min(680px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 800;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero h1,
.section h2,
.faq h2,
.topics h2 {
  margin: 0;
  line-height: 1.16;
  letter-spacing: 0;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 5rem);
  font-weight: 900;
}

.cover-line {
  position: relative;
  display: block;
  width: fit-content;
  overflow: hidden;
}

.cover-line::before {
  position: absolute;
  inset: 0;
  z-index: 2;
  content: "";
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
}

.text-inner {
  display: inline-block;
  opacity: 0;
  transform: translateY(18px);
}

body.is-loaded .cover-line::before {
  animation: coverFlash 1.05s cubic-bezier(.77, 0, .18, 1) 0.2s both;
}

body.is-loaded .cover-line--delay::before {
  animation-delay: 0.42s;
}

body.is-loaded .text-inner {
  animation: heroText 0.55s ease 0.65s both;
}

body.is-loaded .cover-line--delay .text-inner {
  animation-delay: 0.87s;
}

.hero__lead {
  max-width: 600px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.button--primary {
  color: #fff;
  background: var(--ink);
}

.button--primary:hover {
  background: var(--accent-dark);
}

.button--ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.76);
  border-color: var(--line);
}

.hero__note {
  position: absolute;
  right: clamp(18px, 6vw, 76px);
  bottom: 34px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 12px;
  min-width: 245px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(223, 229, 231, 0.9);
  border-radius: 8px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero__note span {
  grid-row: 1 / 3;
  align-self: center;
  color: var(--accent);
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1;
}

.hero__note strong,
.hero__note small {
  display: block;
}

.hero__note small {
  color: var(--muted);
}

.topics {
  display: grid;
  grid-template-columns: minmax(190px, 0.4fr) minmax(0, 1fr);
  gap: 28px;
  width: min(var(--max), calc(100% - 36px));
  margin: -34px auto 0;
  padding: 24px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.topics h2 {
  font-size: 1.4rem;
}

.topics .eyebrow {
  color: #ffbf91;
}

.topics__ticker {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.topics__label {
  display: grid;
  place-items: center;
  min-height: 42px;
  margin: 0;
  color: var(--ink);
  background: #fff;
  border-radius: 4px;
  font-size: 0.82rem;
  font-weight: 900;
}

.topics__list {
  position: relative;
  height: 56px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  list-style: none;
}

.topics__list li {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.topics__list li.is-active {
  opacity: 1;
  transform: translateY(0);
}

.topics__list time {
  flex: 0 0 auto;
  color: #ffbf91;
  font-weight: 900;
}

.topics__list span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.section {
  width: min(var(--max), calc(100% - 36px));
  margin: 0 auto;
  padding: 104px 0;
}

.section-head {
  max-width: 620px;
  margin-bottom: 34px;
}

.section-head--center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section h2,
.faq h2,
.topics h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.8rem);
}

.vision {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}

.vision__media {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.vision__media img {
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.vision__body p:not(.eyebrow) {
  color: var(--muted);
}

.vision__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 28px;
}

.vision__stats div {
  padding: 18px 12px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
}

.vision__stats strong,
.vision__stats span {
  display: block;
}

.vision__stats strong {
  color: var(--teal);
  font-size: 1.9rem;
  line-height: 1.1;
}

.vision__stats span {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 800;
}

.cover-reveal {
  position: relative;
  isolation: isolate;
}

.cover-reveal::after {
  position: absolute;
  inset: 0;
  z-index: 2;
  content: "";
  background: var(--accent);
  transform: scaleX(1);
  transform-origin: right;
}

.cover-reveal img {
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 0.1s ease 0.45s, transform 1.2s ease 0.45s;
}

.cover-reveal.is-visible::after {
  animation: imageCover 1s cubic-bezier(.77, 0, .18, 1) both;
}

.cover-reveal.is-visible img {
  opacity: 1;
  transform: scale(1);
}

.service {
  width: 100%;
  max-width: none;
  padding-right: max(18px, calc((100% - var(--max)) / 2));
  padding-left: max(18px, calc((100% - var(--max)) / 2));
  background: var(--soft);
}

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

.service-card {
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(20, 32, 36, 0.08);
}

.service-card img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.service-card:hover img {
  transform: scale(1.05);
}

.service-card__body {
  padding: 24px;
}

.service-card__body span {
  color: var(--accent);
  font-weight: 900;
}

.service-card h3 {
  margin: 8px 0 10px;
  font-size: 1.28rem;
  line-height: 1.35;
}

.service-card p {
  margin: 0;
  color: var(--muted);
}

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

.about-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.about-row:last-child {
  border-bottom: 1px solid var(--line);
}

.about-row span {
  color: var(--teal);
  font-size: 1.25rem;
  font-weight: 900;
}

.about-row p {
  margin: 0;
  color: var(--muted);
}

.faq {
  position: relative;
  min-height: 680px;
  padding: 104px 18px;
  overflow: hidden;
  isolation: isolate;
}

.faq__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.faq__bg::after {
  position: absolute;
  inset: 0;
  content: "";
  background: rgba(255, 255, 255, 0.83);
}

.faq__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.faq__content {
  width: min(860px, 100%);
  margin: 0 auto;
}

.accordion {
  display: grid;
  gap: 12px;
}

.accordion__item {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(223, 229, 231, 0.9);
  border-radius: 8px;
  box-shadow: 0 14px 38px rgba(20, 32, 36, 0.08);
  overflow: hidden;
}

.accordion__title {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 68px;
  padding: 18px 58px 18px 22px;
  color: var(--ink);
  background: transparent;
  border: 0;
  text-align: left;
  font-weight: 800;
}

.accordion__title span {
  display: grid;
  place-items: center;
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  color: #fff;
  background: var(--teal);
  border-radius: 50%;
  font-size: 0.86rem;
}

.accordion__title::before,
.accordion__title::after {
  position: absolute;
  top: 50%;
  right: 24px;
  width: 18px;
  height: 2px;
  content: "";
  background: var(--accent);
  transition: transform 0.25s ease;
}

.accordion__title::after {
  transform: rotate(90deg);
}

.accordion__title[aria-expanded="true"]::after {
  transform: rotate(0deg);
}

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  color: var(--muted);
  transition: max-height 0.3s ease;
}

.accordion__panel p {
  margin: 0;
  padding: 0 24px 24px 70px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

.contact__body p:not(.eyebrow) {
  color: var(--muted);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #cfd8dc;
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--ink);
  background: #fff;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(240, 122, 36, 0.12);
}

.contact-form textarea {
  resize: vertical;
}

.form-status {
  min-height: 1.5em;
  margin: 0;
  color: var(--teal);
  font-weight: 800;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(18px, 4vw, 48px);
  color: #fff;
  background: var(--ink);
}

.site-footer p,
.site-footer small {
  margin: 0;
}

.site-footer small {
  color: rgba(255, 255, 255, 0.7);
}

.page-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 700;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: #fff;
  background: var(--ink);
  border: 0;
  border-radius: 50%;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateX(28px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.page-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.page-top:hover {
  background: var(--accent-dark);
}

.fade-up,
.flip-card {
  opacity: 0;
  will-change: transform, opacity;
}

.fade-up {
  transform: translateY(34px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.flip-card {
  transform: rotateY(18deg) translateY(24px);
  transform-origin: center;
  transition: opacity 0.55s ease, transform 0.65s ease;
}

.fade-up.is-visible,
.flip-card.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes splashWipe {
  0% {
    transform: scaleX(0);
    transform-origin: left;
  }
  45% {
    transform: scaleX(1);
    transform-origin: left;
  }
  55% {
    transform: scaleX(1);
    transform-origin: right;
  }
  100% {
    transform: scaleX(0);
    transform-origin: right;
  }
}

@keyframes coverFlash {
  0% {
    transform: scaleX(0);
    transform-origin: left;
  }
  48% {
    transform: scaleX(1);
    transform-origin: left;
  }
  52% {
    transform: scaleX(1);
    transform-origin: right;
  }
  100% {
    transform: scaleX(0);
    transform-origin: right;
  }
}

@keyframes heroText {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes imageCover {
  0% {
    transform: scaleX(1);
    transform-origin: right;
  }
  100% {
    transform: scaleX(0);
    transform-origin: right;
  }
}

@media (max-width: 920px) {
  :root {
    --header: 68px;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 0 0 0 auto;
    display: grid;
    align-content: center;
    width: min(360px, 82vw);
    padding: 86px 34px 34px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: -16px 0 42px rgba(20, 32, 36, 0.14);
    transform: translateX(100%);
    transition: transform 0.28s ease;
  }

  body.is-nav-open .site-nav {
    transform: translateX(0);
  }

  .site-nav a {
    padding: 14px 0;
    font-size: 1.08rem;
  }

  .hero {
    min-height: 92vh;
  }

  .hero__note {
    position: static;
    width: min(360px, 100%);
    margin-top: 34px;
  }

  .topics,
  .vision,
  .contact {
    grid-template-columns: 1fr;
  }

  .vision__stats,
  .service-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .brand__text {
    display: none;
  }

  .hero {
    padding-right: 18px;
    padding-left: 18px;
  }

  .hero h1 {
    font-size: clamp(2.5rem, 14vw, 4.2rem);
  }

  .topics {
    padding: 20px;
  }

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

  .topics__list {
    height: 76px;
  }

  .topics__list li {
    display: grid;
    align-content: center;
    gap: 4px;
  }

  .topics__list span {
    white-space: normal;
  }

  .section,
  .service,
  .faq {
    padding-top: 76px;
    padding-bottom: 76px;
  }

  .about-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .accordion__title {
    align-items: flex-start;
    padding-right: 48px;
  }

  .accordion__panel p {
    padding-left: 22px;
  }

  .contact-form {
    padding: 20px;
  }

  .site-footer {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

h1 span, h1 p, h2 span, h2 p { font-size: inherit; }