@font-face {
  font-family: "Pretendard";
  src: url("/assets/Pretendard-Regular.subset.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color: #191f28;
  background: #ffffff;
  font-family: "Pretendard", "Apple SD Gothic Neo", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --ink: #191f28;
  --body: #4e5968;
  --muted: #8b95a1;
  --line: #e5e8eb;
  --surface: #f2f4f6;
  --surface-soft: #f7f8fa;
  --blue: #3182f6;
  --blue-hover: #1b64da;
  --blue-soft: #e8f3ff;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: #ffffff;
}

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

.footer-meta {
  display: flex;
  align-items: center;
  gap: 18px;
}

.footer-meta a {
  color: var(--body);
  font-size: 12px;
}

.footer-meta a:hover {
  color: var(--blue);
}

.security-notice {
  width: min(840px, calc(100% - 48px));
  margin: 0 auto;
  padding: 104px 0 140px;
}

.notice-heading {
  padding-bottom: 54px;
  border-bottom: 1px solid var(--line);
}

.notice-heading h1 {
  margin-top: 16px;
  font-size: clamp(42px, 6vw, 64px);
}

.notice-heading > p:not(.section-label) {
  max-width: 650px;
  margin-top: 24px;
  color: var(--body);
  font-size: 18px;
  line-height: 1.7;
}

.notice-heading > span {
  display: block;
  margin-top: 20px;
  color: var(--muted);
  font-size: 12px;
}

.security-notice section {
  padding: 48px 0;
  border-bottom: 1px solid var(--line);
}

.security-notice section h2 {
  font-size: 25px;
  letter-spacing: -0.035em;
}

.security-notice section p,
.security-notice li {
  color: var(--body);
  font-size: 15px;
  line-height: 1.8;
}

.security-notice section p {
  margin-top: 16px;
}

.security-notice ul {
  margin: 18px 0 0;
  padding-left: 22px;
}

.security-notice aside {
  margin-top: 42px;
  padding: 22px 24px;
  border-radius: 16px;
  color: var(--body);
  background: var(--surface);
  font-size: 14px;
  line-height: 1.75;
}

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

h1,
h2,
h3,
p,
dl,
dd {
  margin: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

p,
dd {
  text-wrap: pretty;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 11px 15px;
  border-radius: 10px;
  color: #ffffff;
  background: var(--ink);
  transform: translateY(-160%);
}

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

.site-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}

.header-inner,
.footer-inner {
  display: flex;
  width: min(1120px, calc(100% - 48px));
  min-height: 72px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.035em;
}

.brand img {
  flex: 0 0 auto;
  border-radius: 9px;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  font-weight: 650;
}

.nav-disabled {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  cursor: not-allowed;
  white-space: nowrap;
}

.nav-disabled small {
  padding: 3px 6px;
  border-radius: 6px;
  color: #6b7684;
  background: var(--surface);
  font-size: 10px;
  font-weight: 750;
  line-height: 1.2;
}

.header-cta,
.primary-action {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 15px;
  font-size: 16px;
  font-weight: 750;
  letter-spacing: -0.02em;
  transition: color 160ms ease, background-color 160ms ease, transform 160ms ease;
}

.header-cta {
  min-height: 42px;
  padding-inline: 17px;
  border-radius: 12px;
  color: #ffffff;
  background: var(--blue);
  font-size: 14px;
}

.header-cta:hover,
.primary-action:hover {
  background: var(--blue-hover);
  transform: translateY(-1px);
}

.hero {
  padding: 104px 24px 0;
  overflow: hidden;
  text-align: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 850px;
  margin: 0 auto;
  animation: rise-in 700ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

h1 {
  color: #101114;
  font-size: clamp(54px, 5.8vw, 78px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.062em;
}

.hero-description {
  margin-top: 27px;
  color: var(--body);
  font-size: clamp(18px, 1.7vw, 21px);
  line-height: 1.6;
  letter-spacing: -0.025em;
}

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

.primary-action {
  color: #ffffff;
  background: var(--blue);
}

.hero-note {
  margin-top: 17px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  letter-spacing: -0.015em;
}

.hero-stage {
  position: relative;
  width: min(1120px, 100%);
  height: 610px;
  margin: 78px auto 0;
  overflow: hidden;
  border-radius: 40px 40px 0 0;
  background:
    radial-gradient(circle at 50% 34%, rgba(255, 255, 255, 0.96) 0 8%, rgba(255, 255, 255, 0.32) 36%, transparent 63%),
    var(--blue-soft);
  animation: stage-in 850ms 120ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-stage::before,
.hero-stage::after {
  position: absolute;
  top: 50%;
  width: clamp(160px, 18vw, 260px);
  height: 1px;
  background: rgba(49, 130, 246, 0.2);
  content: "";
}

.hero-stage::before {
  left: 7%;
}

.hero-stage::after {
  right: 7%;
}

.stage-word {
  position: absolute;
  top: calc(50% - 20px);
  color: rgba(49, 130, 246, 0.58);
  font-size: clamp(20px, 2.2vw, 30px);
  font-weight: 750;
  letter-spacing: -0.04em;
}

.stage-word-left {
  left: 13%;
}

.stage-word-right {
  right: 13%;
}

.product-visual {
  position: absolute;
  top: 58px;
  left: 50%;
  width: min(340px, calc(100% - 52px));
  height: 660px;
  overflow: hidden;
  border: 1px solid rgba(16, 17, 20, 0.14);
  border-radius: 30px 30px 0 0;
  background: #111217;
  box-shadow: 0 32px 80px rgba(49, 130, 246, 0.2), 0 12px 30px rgba(25, 31, 40, 0.14);
  transform: translateX(-50%);
}

.product-visual img {
  width: 100%;
  height: auto;
}

.experience-section {
  padding: 160px 24px;
  background: var(--surface-soft);
}

.experience-inner {
  display: grid;
  width: min(1080px, 100%);
  margin: 0 auto;
  grid-template-columns: minmax(340px, 0.86fr) minmax(420px, 1fr);
  align-items: center;
  gap: clamp(72px, 10vw, 140px);
}

.detail-visual {
  position: relative;
  width: min(100%, 430px);
  height: 690px;
  justify-self: center;
  overflow: hidden;
  border-radius: 32px;
  background: #111217;
  box-shadow: 0 34px 80px rgba(25, 31, 40, 0.16);
}

.detail-visual img {
  width: 100%;
  height: auto;
  transform: scale(1.18);
  transform-origin: 50% 26%;
}

.section-label {
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 17px;
  font-weight: 750;
  line-height: 1.45;
  letter-spacing: -0.025em;
}

.experience-copy h2,
.moment-copy h2,
.closing-section h2 {
  font-size: clamp(44px, 4.7vw, 64px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.058em;
}

.section-description {
  max-width: 520px;
  margin-top: 27px;
  color: var(--body);
  font-size: 19px;
  line-height: 1.72;
  letter-spacing: -0.025em;
}

.experience-list {
  margin-top: 54px;
}

.experience-list > div {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.experience-list > div:last-child {
  border-bottom: 1px solid var(--line);
}

.experience-list dt {
  color: var(--ink);
  font-size: 19px;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.experience-list dd {
  margin-top: 8px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: -0.02em;
}

.moment-section {
  display: grid;
  width: min(1080px, calc(100% - 48px));
  min-height: 760px;
  margin: 0 auto;
  padding: 150px 0;
  grid-template-columns: minmax(360px, 0.9fr) minmax(460px, 1.1fr);
  align-items: center;
  gap: clamp(70px, 11vw, 150px);
}

.moment-sequence {
  position: relative;
  padding-left: 40px;
}

.moment-sequence::before {
  position: absolute;
  top: 30px;
  bottom: 30px;
  left: 6px;
  width: 2px;
  border-radius: 2px;
  background: #dbeafe;
  content: "";
}

.moment-sequence > div {
  position: relative;
  display: flex;
  min-height: 116px;
  padding: 24px 0;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--line);
}

.moment-sequence > div::before {
  position: absolute;
  top: 50%;
  left: -40px;
  width: 14px;
  height: 14px;
  border: 4px solid #ffffff;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 1px #b9d7ff;
  content: "";
  transform: translateY(-50%);
}

.moment-sequence span {
  color: var(--blue);
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.moment-sequence strong {
  margin-top: 8px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 750;
  letter-spacing: -0.035em;
}

.closing-section {
  padding: 170px 24px 180px;
  color: #ffffff;
  background: var(--blue);
  text-align: center;
}

.closing-section h2 {
  max-width: 850px;
  margin: 0 auto;
}

.closing-action {
  margin-top: 42px;
  color: var(--blue);
  background: #ffffff;
}

.closing-action:hover {
  color: var(--blue-hover);
  background: #f7fbff;
}

footer {
  padding: 34px 24px;
  background: var(--surface-soft);
}

.footer-inner {
  min-height: 76px;
}

.footer-brand {
  font-size: 16px;
}

footer small {
  color: var(--muted);
  font-size: 12px;
}

a:focus-visible {
  outline: 3px solid rgba(49, 130, 246, 0.36);
  outline-offset: 3px;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes stage-in {
  from {
    opacity: 0;
    transform: translateY(28px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 900px) {
  .header-inner,
  .footer-inner {
    width: min(100% - 40px, 720px);
  }

  .hero {
    padding-top: 84px;
  }

  .hero-stage {
    height: 590px;
    margin-top: 64px;
  }

  .hero-stage::before,
  .hero-stage::after,
  .stage-word {
    display: none;
  }

  .experience-section {
    padding: 112px 24px;
  }

  .experience-inner {
    width: min(720px, 100%);
    grid-template-columns: 1fr;
    gap: 72px;
  }

  .detail-visual {
    width: min(430px, 100%);
    height: 640px;
  }

  .experience-copy {
    grid-row: 1;
  }

  .moment-section {
    width: min(720px, calc(100% - 48px));
    min-height: auto;
    padding: 112px 0;
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .moment-copy {
    max-width: 590px;
  }

  .moment-sequence {
    max-width: 590px;
  }

  .closing-section {
    padding: 125px 24px 135px;
  }
}

@media (max-width: 560px) {
  .header-inner {
    min-height: 64px;
  }

  .brand {
    gap: 8px;
    font-size: 17px;
  }

  .brand img {
    width: 32px;
    height: 32px;
  }

  .header-cta {
    min-height: 40px;
    padding-inline: 14px;
    font-size: 13px;
  }

  .site-header nav {
    gap: 10px;
  }

  .site-header .brand > span {
    display: none;
  }

  .nav-disabled {
    min-height: 40px;
    flex-direction: column;
    justify-content: center;
    gap: 1px;
    font-size: 11px;
  }

  .nav-disabled small {
    padding: 0;
    color: var(--muted);
    background: transparent;
    font-size: 9px;
  }

  .hero {
    padding: 68px 16px 0;
  }

  h1 {
    font-size: clamp(42px, 12.6vw, 54px);
    line-height: 1.12;
  }

  .hero-description {
    max-width: 330px;
    margin: 22px auto 0;
    font-size: 17px;
    line-height: 1.58;
  }

  .hero-actions {
    margin-top: 32px;
    flex-direction: column;
  }

  .primary-action {
    width: 100%;
    min-height: 54px;
  }

  .hero-note {
    max-width: 310px;
    margin: 15px auto 0;
    font-size: 12px;
  }

  .hero-stage {
    height: 565px;
    margin-top: 52px;
    border-radius: 28px 28px 0 0;
  }

  .product-visual {
    top: 36px;
    width: min(310px, calc(100% - 34px));
    height: 610px;
    border-radius: 24px 24px 0 0;
  }

  .experience-section {
    padding: 94px 20px;
  }

  .experience-inner {
    gap: 56px;
  }

  .section-label {
    margin-bottom: 14px;
    font-size: 15px;
  }

  .experience-copy h2,
  .moment-copy h2,
  .closing-section h2 {
    font-size: clamp(38px, 11vw, 48px);
    line-height: 1.16;
  }

  .section-description {
    margin-top: 22px;
    font-size: 17px;
    line-height: 1.68;
  }

  .experience-list {
    margin-top: 38px;
  }

  .experience-list > div {
    padding: 22px 0;
  }

  .experience-list dt {
    font-size: 18px;
  }

  .experience-list dd {
    font-size: 15px;
  }

  .detail-visual {
    height: 570px;
    border-radius: 26px;
  }

  .moment-section {
    width: calc(100% - 40px);
    padding: 94px 0;
    gap: 48px;
  }

  .moment-sequence {
    padding-left: 34px;
  }

  .moment-sequence > div::before {
    left: -34px;
  }

  .moment-sequence strong {
    font-size: 21px;
  }

  .closing-section {
    padding: 104px 20px 112px;
  }

  .closing-action {
    max-width: 360px;
    margin-top: 34px;
  }

  .security-notice {
    width: calc(100% - 40px);
    padding: 72px 0 96px;
  }

  .notice-heading {
    padding-bottom: 40px;
  }

  .notice-heading h1 {
    font-size: clamp(38px, 11vw, 48px);
  }

  .notice-heading > p:not(.section-label) {
    margin-top: 19px;
    font-size: 16px;
  }

  .security-notice section {
    padding: 38px 0;
  }

  .security-notice section h2 {
    font-size: 22px;
  }

  .security-notice section p,
  .security-notice li {
    font-size: 14px;
  }

  .security-notice aside {
    margin-top: 32px;
    padding: 19px 20px;
    font-size: 13px;
  }

  footer {
    padding: 34px 20px 42px;
  }

  .footer-inner {
    width: 100%;
    flex-wrap: wrap;
    gap: 18px 24px;
  }

}

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

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