/* ============================================================
   KA-HD Corporate Site
   Brand colors are centralized here for easy adjustment.
   ============================================================ */

:root {
  --blue-950: #061422;
  --blue-900: #0a243c;
  --blue-800: #0c355c;
  --blue-700: #114a7a;
  --blue-600: #1a63a0;
  --blue-500: #2b7db8;
  --blue-300: #7eafd0;
  --blue-200: #b7d3e6;
  --blue-100: #dceaf3;
  --blue-50: #f3f7fb;
  --ink: #1c2430;
  --ink-muted: #5a6570;
  --ink-faint: #8a94a0;
  --line: #d4dee7;
  --line-soft: #e7eef3;
  --white: #ffffff;
  --header-h: 80px;
  --container: 1120px;
  --container-wide: 1240px;
  --radius: 2px;
  --shadow-header: 0 1px 0 rgba(12, 53, 92, 0.08), 0 8px 24px rgba(12, 53, 92, 0.06);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-serif: "Cormorant Garamond", "Noto Serif JP", "Yu Mincho", serif;
  --font-mincho: "Noto Serif JP", "Yu Mincho", serif;
  --font-sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --focus: 0 0 0 2px var(--white), 0 0 0 4px var(--blue-600);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

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

button,
input,
select,
textarea {
  font-family: inherit;
}

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

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 200;
  background: var(--blue-800);
  color: var(--white);
  padding: 8px 16px;
  font-size: 13px;
}

.skip-link:focus {
  top: 12px;
}

.container {
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

.container-wide {
  width: min(100% - 48px, var(--container-wide));
  margin-inline: auto;
}

.no-js .reveal,
.no-js .reveal-left,
.no-js .reveal-scale {
  opacity: 1;
  transform: none;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line-soft);
  box-shadow: var(--shadow-header);
}

.site-header__inner {
  height: 100%;
  width: min(100% - 40px, var(--container-wide));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo img {
  width: auto;
  height: 56px;
  background: #fff;
  flex-shrink: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav__link {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink);
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--blue-700);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  border: 1px solid transparent;
  background: var(--blue-800);
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.btn:hover {
  background: var(--blue-700);
}

.btn--ghost {
  background: transparent;
  color: var(--blue-800);
  border-color: var(--blue-200);
}

.btn--ghost:hover {
  background: var(--blue-50);
  border-color: var(--blue-700);
}

.btn--light {
  background: var(--white);
  color: var(--blue-800);
}

.btn--light:hover {
  background: var(--blue-50);
}

.btn--header {
  min-height: 42px;
  padding: 0 22px;
  letter-spacing: 0.14em;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.menu-toggle span {
  position: absolute;
  left: 12px;
  right: 12px;
  height: 1.5px;
  background: var(--blue-800);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), top 0.3s var(--ease);
}

.menu-toggle span:nth-child(1) { top: 16px; }
.menu-toggle span:nth-child(2) { top: 21px; }
.menu-toggle span:nth-child(3) { top: 26px; }

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  top: 21px;
  transform: rotate(45deg);
}

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

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  top: 21px;
  transform: rotate(-45deg);
}

.nav-drawer {
  display: none;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: stretch;
  background: var(--white);
}

.hero__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 8vw 80px 7vw;
  container-type: inline-size;
}

.hero__eyebrow {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 28px;
}

.hero__brand {
  font-family: var(--font-mincho);
  font-size: clamp(22px, 9.2cqi, 64px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.08em;
  color: var(--blue-800);
  margin: 0 0 28px;
  white-space: nowrap;
}

.hero__lead {
  font-family: var(--font-mincho);
  font-size: clamp(20px, 2.1vw, 28px);
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--ink);
  margin: 0 0 28px;
}

.hero__text {
  max-width: 34em;
  color: var(--ink-muted);
  font-size: 15px;
  margin: 0 0 40px;
}

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

.hero__visual {
  position: relative;
  min-height: 100%;
  aspect-ratio: 4 / 5;
  background: linear-gradient(165deg, var(--blue-900) 0%, var(--blue-800) 58%, #163e63 100%);
  overflow: hidden;
}

.hero__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 40%, rgba(255, 255, 255, 0.05) 41%, transparent 42%),
    radial-gradient(circle at 70% 20%, rgba(255, 255, 255, 0.08), transparent 42%);
  pointer-events: none;
}

.hero__orbit {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  animation: orbitSpin 48s linear infinite;
}

.hero__orbit--inner {
  inset: 24%;
  animation-duration: 36s;
  animation-direction: reverse;
  border-color: rgba(255, 255, 255, 0.1);
}

.image-slot {
  position: relative;
  overflow: hidden;
  margin: 0;
  background: var(--blue-900);
}

.image-slot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.25s var(--ease), transform 0.8s var(--ease);
}

.image-slot.has-image img {
  opacity: 1;
}

.image-slot.has-image img:hover,
.image-slot.has-image:hover img {
  transform: scale(1.04);
}

.image-slot.has-image .image-slot__placeholder {
  opacity: 0;
  pointer-events: none;
}

.image-slot__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  color: rgba(255, 255, 255, 0.8);
  background:
    linear-gradient(180deg, transparent 40%, rgba(6, 20, 34, 0.55) 100%),
    repeating-linear-gradient(
      135deg,
      transparent 0 18px,
      rgba(255, 255, 255, 0.03) 18px 19px
    );
}

.image-slot__kicker {
  font-family: var(--font-serif);
  letter-spacing: 0.32em;
  font-size: 11px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.image-slot__caption {
  font-size: 14px;
  letter-spacing: 0.06em;
}

/* ---------- Sections ---------- */

.section {
  padding: 120px 0;
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.section--tight {
  padding: 88px 0;
}

.section--blue {
  background: var(--blue-800);
  color: var(--white);
}

.section--mist {
  background: var(--blue-50);
}

.section-heading {
  margin-bottom: 64px;
}

.section-heading--center {
  text-align: center;
}

.eyebrow {
  display: block;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 16px;
}

.section--blue .eyebrow {
  color: var(--blue-200);
}

.section-heading h2 {
  font-family: var(--font-mincho);
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: 0.06em;
  margin: 0 0 18px;
}

.section-heading p {
  margin: 0;
  max-width: 38em;
  color: var(--ink-muted);
  font-size: 15px;
}

.section-heading--center p {
  margin-inline: auto;
}

.section--blue .section-heading p {
  color: rgba(255, 255, 255, 0.78);
}

/* ---------- 16 YEARS ---------- */

.years {
  text-align: center;
  padding: 132px 0 120px;
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.years__number {
  font-family: var(--font-serif);
  font-size: clamp(7.5rem, 18vw, 15rem);
  font-weight: 600;
  line-height: 0.85;
  color: var(--blue-700);
  letter-spacing: -0.04em;
  margin: 0;
}

.years__unit {
  display: block;
  margin-top: 12px;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.4vw, 28px);
  letter-spacing: 0.48em;
  color: var(--blue-800);
}

.years__title {
  font-family: var(--font-mincho);
  font-size: clamp(20px, 2.2vw, 28px);
  margin: 40px 0 20px;
  letter-spacing: 0.08em;
}

.years__text {
  max-width: 40em;
  margin: 0 auto;
  color: var(--ink-muted);
}

.years__rule {
  width: 48px;
  height: 1px;
  background: var(--blue-600);
  margin: 36px auto 0;
}

/* ---------- Why KA-HD ---------- */

.strengths {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.strength {
  padding: 48px 40px 48px 0;
  border-bottom: 1px solid var(--line);
}

.strength:nth-child(odd) {
  padding-right: 48px;
  border-right: 1px solid var(--line);
}

.strength:nth-child(even) {
  padding-left: 48px;
}

.strength__num {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.28em;
  color: var(--blue-600);
  display: block;
  margin-bottom: 18px;
}

.strength__title {
  font-family: var(--font-mincho);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin: 0 0 16px;
}

.strength__text {
  margin: 0;
  color: var(--ink-muted);
  font-size: 15px;
}

/* ---------- Results ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}

.stat__value {
  font-family: var(--font-serif);
  font-size: clamp(56px, 7vw, 96px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--white);
}

.stat__label {
  display: block;
  margin-top: 14px;
  font-family: var(--font-serif);
  letter-spacing: 0.28em;
  font-size: 13px;
  color: var(--blue-200);
}

.stats-note {
  text-align: center;
  margin: 48px 0 0;
  color: rgba(255, 255, 255, 0.8);
}

/* ---------- Vietnam ---------- */

.vietnam-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.vietnam-copy p {
  color: var(--ink-muted);
  margin: 0 0 20px;
}

.vietnam-copy p:last-child {
  margin-bottom: 0;
}

.vietnam-points {
  display: grid;
  gap: 20px;
  margin-top: 36px;
}

.vietnam-point {
  display: grid;
  grid-template-columns: 11em minmax(0, 1fr);
  gap: 8px 24px;
  align-items: baseline;
}

.vietnam-point strong {
  font-family: var(--font-serif);
  color: var(--blue-700);
  letter-spacing: 0.16em;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.vietnam-point p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-muted);
}

.vietnam-visual {
  min-height: 520px;
  aspect-ratio: 4 / 5;
}

/* ---------- University ---------- */

.uni-note {
  font-size: 13px;
  color: var(--ink-muted);
  margin: -36px 0 40px;
  padding: 16px 20px;
  background: var(--blue-50);
  border-left: 2px solid var(--blue-600);
}

.uni-regions {
  display: grid;
  gap: 48px;
}

.uni-region h3 {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--blue-600);
  font-weight: 600;
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.uni-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.uni-list li {
  padding: 10px 16px;
  border: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: var(--white);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.uni-list li:hover {
  border-color: var(--blue-600);
  color: var(--blue-800);
}

.uni-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 32px;
  margin-top: 40px;
  font-size: 12px;
  color: var(--ink-muted);
}

.uni-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.uni-legend i {
  width: 8px;
  height: 8px;
  background: var(--blue-600);
  display: inline-block;
}

.uni-legend i.soft {
  background: var(--blue-200);
}

.uni-legend i.line {
  background: transparent;
  border: 1px solid var(--blue-600);
}

/* ---------- Education / Seminar ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.topic-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
}

.topic-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
}

.topic-list li::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--blue-600);
  flex-shrink: 0;
}

.seminar-visual {
  min-height: 420px;
  aspect-ratio: 16 / 10;
}

/* ---------- Service ---------- */

.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service {
  padding-top: 8px;
}

.service__num {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--blue-600);
}

.service__en {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--ink-faint);
  margin: 18px 0 8px;
}

.service h3 {
  font-family: var(--font-mincho);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin: 0 0 16px;
}

.service p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 15px;
}

.service__line {
  width: 32px;
  height: 1px;
  background: var(--blue-600);
  margin: 20px 0 0;
}

/* ---------- Flow ---------- */

.flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.flow::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: var(--blue-200);
}

.flow__item {
  text-align: center;
  padding: 0 12px;
  position: relative;
}

.flow__num {
  width: 36px;
  height: 36px;
  margin: 0 auto 20px;
  border: 1px solid var(--blue-600);
  background: var(--white);
  color: var(--blue-700);
  font-family: var(--font-serif);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.flow__item p {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.04em;
  line-height: 1.7;
}

/* ---------- Retention ---------- */

.retention-intro {
  max-width: 42em;
  color: var(--ink-muted);
  margin-bottom: 48px;
}

.retention-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.retention-card {
  padding: 32px 28px;
  background: var(--white);
  border-top: 2px solid var(--blue-700);
}

.retention-card h3 {
  font-family: var(--font-mincho);
  font-size: 18px;
  margin: 0 0 16px;
  letter-spacing: 0.06em;
}

.retention-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink-muted);
  font-size: 14px;
}

.retention-card li {
  padding: 7px 0;
  border-bottom: 1px solid var(--line-soft);
}

.retention-card li:last-child {
  border-bottom: 0;
}

/* ---------- Trusted by ---------- */

.trust-note {
  text-align: center;
  color: var(--ink-muted);
  font-size: 14px;
  margin: -24px 0 40px;
}

.marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  gap: 12px;
  width: max-content;
  animation: marquee 48s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee--reverse .marquee__track {
  animation-direction: reverse;
  animation-duration: 56s;
}

.company-chip {
  flex-shrink: 0;
  padding: 14px 22px;
  border: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--white);
  white-space: nowrap;
}

.core-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}

.core-visual {
  min-height: 380px;
  aspect-ratio: 5 / 4;
}

.core-copy p {
  color: var(--ink-muted);
  margin: 0 0 18px;
}

/* ---------- Representative ---------- */

.rep {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 72px;
  align-items: start;
}

.rep-visual {
  aspect-ratio: 4 / 5;
  min-height: 520px;
}

.rep-name {
  margin: 0 0 8px;
}

.rep-name span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--blue-600);
  margin-bottom: 10px;
}

.rep-name strong {
  font-family: var(--font-mincho);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 600;
  letter-spacing: 0.1em;
}

.rep-roles {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  color: var(--ink-muted);
  font-size: 14px;
}

.rep-roles li + li {
  margin-top: 4px;
}

.rep-message p {
  color: var(--ink-muted);
  margin: 0 0 18px;
}

.career {
  grid-column: 1 / -1;
  margin-top: 64px;
}

.career h3 {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.28em;
  color: var(--blue-600);
  margin: 0 0 24px;
}

.career ol,
.career__detail {
  list-style: none;
  margin: 0;
  padding: 0;
}

.career > ol > li {
  position: relative;
  display: grid;
  grid-template-columns: 13em minmax(0, 1fr);
  gap: 6px 20px;
  align-items: start;
  padding: 0 0 28px 28px;
  border-left: 1px solid var(--blue-200);
}

.career > ol > li:last-child {
  grid-template-columns: minmax(0, 1fr);
  padding-bottom: 8px;
}

.career > ol > li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--blue-700);
}

.career__role {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.career__role strong,
.career__detail strong {
  display: block;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.55;
}

.career__role strong {
  font-family: var(--font-mincho);
}

.career__role span {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--blue-600);
}

.career > ol > li > p,
.career__detail p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.75;
}

.career__detail {
  margin-top: 16px;
  padding: 8px 20px 4px;
  background: var(--blue-50);
  border-top: 2px solid var(--blue-700);
}

.career .career__detail li {
  position: static;
  padding: 14px 0;
  border-left: 0;
  border-bottom: 1px solid var(--line);
}

.career .career__detail li:last-child {
  border-bottom: 0;
}

.career .career__detail li::before {
  content: none;
}

.career__detail strong {
  margin-bottom: 4px;
  font-size: 14px;
}

.career__founding {
  margin: 20px 0 0;
  padding: 16px 20px;
  background: var(--blue-950);
  color: rgba(255, 255, 255, 0.92);
  font-size: 14px;
  letter-spacing: 0.04em;
  line-height: 1.75;
}

/* ---------- Company ---------- */

.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.profile-table {
  width: 100%;
  border-collapse: collapse;
}

.profile-table th,
.profile-table td {
  text-align: left;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-weight: 400;
}

.profile-table th {
  width: 8em;
  color: var(--ink-muted);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.story-card {
  background: var(--blue-50);
  padding: 40px 36px;
}

.story-card h3 {
  font-family: var(--font-mincho);
  font-size: 22px;
  margin: 0 0 20px;
  letter-spacing: 0.06em;
}

.story-card p {
  color: var(--ink-muted);
  margin: 0 0 16px;
  font-size: 15px;
}

.story-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.story-list li {
  display: grid;
  grid-template-columns: 7em 1fr;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.story-list strong {
  color: var(--blue-800);
  font-weight: 500;
}

/* ---------- Contact CTA ---------- */

.contact-cta {
  text-align: center;
  padding: 140px 0;
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.contact-cta h2 {
  font-family: var(--font-mincho);
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.55;
  margin: 0 0 24px;
}

.contact-cta p {
  color: var(--ink-muted);
  margin: 0 0 40px;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--blue-950);
  color: rgba(255, 255, 255, 0.82);
  padding: 72px 0 28px;
}

.site-footer .logo {
  background: transparent;
  padding: 0;
}

.site-footer .logo img {
  height: 76px;
  background: transparent;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand p {
  margin: 20px 0 0;
  font-family: var(--font-mincho);
  letter-spacing: 0.12em;
  color: var(--blue-200);
}

.footer-en {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.55);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  align-content: flex-start;
}

.footer-nav a {
  font-size: 13px;
  letter-spacing: 0.06em;
}

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

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding-top: 28px;
}

.footer-legal a {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.62);
}

.footer-legal a:hover,
.footer-legal a[aria-current="page"] {
  color: var(--white);
}

.footer-bottom {
  padding-top: 20px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------- Contact page ---------- */

.page-hero {
  padding: 88px 0 40px;
}

.page-hero h1 {
  font-family: var(--font-mincho);
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: 0.08em;
  margin: 12px 0 0;
}

.policy-section {
  padding-top: 12px;
}

.policy {
  max-width: 760px;
}

.policy-meta {
  margin: 0 0 36px;
  color: var(--ink-faint);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.policy h2 {
  font-family: var(--font-mincho);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin: 48px 0 14px;
}

.policy h2:first-of-type {
  margin-top: 0;
}

.policy p,
.policy li {
  color: var(--ink-muted);
  font-size: 15px;
}

.policy p {
  margin: 0 0 16px;
}

.policy ul,
.policy ol {
  margin: 0 0 16px;
  padding-left: 1.3em;
}

.policy li + li {
  margin-top: 8px;
}

.policy a {
  color: var(--blue-700);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.form {
  display: grid;
  gap: 22px;
  max-width: 720px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  gap: 8px;
}

.form-row--2 {
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.form label {
  font-size: 13px;
  letter-spacing: 0.08em;
}

.req {
  color: var(--blue-600);
  margin-left: 4px;
}

.form input,
.form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  padding: 14px 16px;
  font-size: 15px;
  border-radius: var(--radius);
}

.form-consent .check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  cursor: pointer;
}

.form-consent input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 4px 0 0;
  padding: 0;
  flex-shrink: 0;
  accent-color: var(--blue-800);
  cursor: pointer;
}

.form-consent a {
  color: var(--blue-700);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.form input:focus-visible,
.form textarea:focus-visible {
  border-color: var(--blue-600);
  outline: none;
  box-shadow: 0 0 0 3px rgba(26, 99, 160, 0.15);
}

.form textarea {
  min-height: 160px;
  resize: vertical;
}

.form-success {
  display: none;
  text-align: center;
  padding: 48px 24px;
  background: var(--blue-50);
}

.form-success.is-visible {
  display: block;
}

.form.is-hidden {
  display: none;
}

.form-error {
  color: #9b2c2c;
  font-size: 13px;
  min-height: 1em;
}

/* ---------- Motion ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--delay, 0s);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.98);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}

.reveal.is-visible,
.reveal-left.is-visible,
.reveal-scale.is-visible {
  opacity: 1;
  transform: none;
}

.hero__eyebrow,
.hero__brand,
.hero__lead,
.hero__text,
.hero__actions {
  animation: fadeUp 1s var(--ease) both;
}

.hero__brand { animation-delay: 0.12s; }
.hero__lead { animation-delay: 0.24s; }
.hero__text { animation-delay: 0.36s; }
.hero__actions { animation-delay: 0.48s; }

.hero__visual {
  animation: fadeIn 1.2s var(--ease) both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Responsive ---------- */

@media (max-width: 1100px) {
  .nav {
    gap: 18px;
  }

  .nav__link {
    font-size: 12px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero__copy {
    padding: 72px 6vw 56px;
  }

  .hero__visual {
    min-height: 420px;
  }

  .vietnam-grid,
  .split,
  .rep,
  .company-grid,
  .core-panel {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .services,
  .retention-grid {
    grid-template-columns: 1fr;
  }

  .flow {
    grid-template-columns: 1fr 1fr;
    gap: 32px 16px;
  }

  .flow::before {
    display: none;
  }
}

@media (max-width: 860px) {
  :root {
    --header-h: 68px;
  }

  .logo img {
    height: 44px;
  }

  .menu-toggle {
    display: block;
  }

  .nav {
    display: none;
  }

  .nav-drawer {
    display: block;
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: var(--white);
    padding: 32px 28px 48px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    overflow-y: auto;
    z-index: 90;
  }

  .nav-drawer.is-open {
    transform: none;
  }

  .nav-drawer a {
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--line-soft);
    font-size: 16px;
    letter-spacing: 0.08em;
  }

  .nav-drawer .btn {
    width: 100%;
    margin-top: 28px;
  }

  body.nav-open {
    overflow: hidden;
  }

  .section,
  .years,
  .contact-cta {
    padding: 88px 0;
  }

  .container,
  .container-wide,
  .site-header__inner {
    width: min(100% - 32px, var(--container-wide));
  }

  .strengths,
  .stats,
  .form-row--2,
  .topic-list {
    grid-template-columns: 1fr;
  }

  .strength,
  .strength:nth-child(odd),
  .strength:nth-child(even) {
    padding: 32px 0;
    border-right: 0;
  }

  .hero__visual {
    min-height: 320px;
  }

  .vietnam-visual,
  .rep-visual {
    min-height: 380px;
  }

  .footer-top {
    flex-direction: column;
  }

  .years__number {
    font-size: clamp(5.5rem, 28vw, 9rem);
  }
}

@media (max-width: 640px) {
  .vietnam-point {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .hero__actions .btn {
    width: 100%;
  }

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

  .story-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .career > ol > li {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .stat__value {
    font-size: 56px;
  }
}

/* ---------- Smartphone ---------- */

@media (max-width: 860px) {
  .container,
  .container-wide,
  .site-header__inner {
    width: min(100% - 48px, var(--container-wide));
  }

  .hero,
  .vietnam-grid,
  .split,
  .rep,
  .company-grid,
  .core-panel {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero__copy {
    padding: 36px 24px 28px;
  }

  .hero__eyebrow,
  .eyebrow {
    letter-spacing: 0.18em;
    margin-bottom: 14px;
  }

  .hero__brand {
    margin-bottom: 18px;
  }

  .hero__lead {
    font-size: 20px;
    line-height: 1.75;
    margin-bottom: 16px;
  }

  .hero__text {
    margin-bottom: 28px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn,
  .contact-cta .btn,
  .form .btn {
    width: 100%;
  }

  .hero__visual,
  .vietnam-visual,
  .seminar-visual,
  .core-visual,
  .rep-visual {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 0;
    height: auto;
    aspect-ratio: auto;
  }

  .hero__visual {
    width: calc(100% - 48px);
    max-width: calc(100% - 48px);
    margin: 0 auto 40px;
    justify-self: center;
  }

  .image-slot:not(.has-image) {
    min-height: 220px;
    aspect-ratio: 3 / 2;
  }

  .image-slot.has-image img {
    position: static;
    inset: auto;
    width: 100%;
    height: auto;
    object-fit: contain;
    transform: none;
  }

  .image-slot.has-image img:hover,
  .image-slot.has-image:hover img {
    transform: none;
  }

  .section,
  .years,
  .contact-cta {
    padding: 64px 0;
  }

  .section-heading {
    margin-bottom: 32px;
  }

  .section-heading h2,
  .contact-cta h2,
  .page-hero h1 {
    font-size: clamp(24px, 6.4vw, 32px);
    line-height: 1.55;
  }

  .page-hero {
    padding: 36px 0 8px;
  }

  .years {
    padding: 56px 0;
  }

  .years__number {
    font-size: clamp(4.5rem, 22vw, 7rem);
  }

  .years__unit {
    letter-spacing: 0.28em;
  }

  .story-card,
  .retention-card {
    padding: 24px 20px;
  }

  .profile-table,
  .profile-table tbody,
  .profile-table tr,
  .profile-table th,
  .profile-table td {
    display: block;
    width: 100%;
  }

  .profile-table th {
    padding: 16px 0 0;
    border-bottom: 0;
  }

  .profile-table td {
    padding: 4px 0 16px;
  }

  .uni-note {
    margin: 0 0 28px;
  }

  .form input,
  .form textarea {
    font-size: 16px;
  }

  .policy,
  .footer-en {
    overflow-wrap: anywhere;
  }

  .nav-drawer {
    padding: 12px 24px 40px;
  }

  .site-footer {
    padding: 48px 0 24px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal,
  .reveal-left,
  .reveal-scale,
  .hero__eyebrow,
  .hero__brand,
  .hero__lead,
  .hero__text,
  .hero__actions,
  .hero__visual {
    opacity: 1;
    transform: none;
  }

  .marquee__track {
    animation: none;
    flex-wrap: wrap;
    width: auto;
    justify-content: center;
  }
}