@charset "UTF-8";
:root {
  --font-sans:
    'Noto Sans JP', 'Hiragino Sans', 'Noto Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-serif: 'Zen Old Mincho', 'Noto Serif JP', 'Hiragino Mincho ProN', serif;
  --font-roman: 'Crimson Text', 'Noto Serif', serif;
  --text: #0d1638;
  --text-inverse: #f0efef;
  --text-soft: #a2a8c0;
  --white: #fff;
  --white-soft: #fefeff;
  --border: #e1e3ea;
  --bg-section: #f7f7fa;
  --accent: #9c8562;
  --footer: #101522;
  /* Alpha variants for overlays/lines */
  --text-15: color-mix(in srgb, var(--text) 15%, transparent);
  --text-32: color-mix(in srgb, var(--text) 32%, transparent);
  --text-50: color-mix(in srgb, var(--text) 50%, transparent);
  --text-inverse-50: color-mix(in srgb, var(--text-inverse) 50%, transparent);
}

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

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}
@media (min-width: 768px) {
  html {
    scroll-padding-top: 100px;
  }
}

body {
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

img {
  height: auto;
  image-rendering: optimize-contrast;
}

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

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

/* ------------------------------
      レイアウト共通
    ------------------------------ */
.site {
  min-height: 100vh;
}

.container {
  --container-width: 67rem;
  --padding-inline: 1rem;
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: calc(var(--container-width, 128rem) + var(--padding-inline, 1.5rem) * 2);
  padding-inline: var(--padding-inline, 1.5rem);
  margin-inline: auto;
}

.site-main {
  display: block;
}

section {
  position: relative;
  padding-block: 4rem;
}
@media (min-width: 768px) {
  section {
    padding-block: 5.5rem;
  }
}

.skip-link {
  position: absolute;
  top: 0.5rem;
  left: -624.938rem;
  z-index: 1000;
  padding: 0.5rem 0.75rem;
  color: var(--text);
  background: var(--white);
  border: 2px solid var(--text);
}

.skip-link:focus-visible {
  left: 0.75rem;
}

/* ------------------------------
      ヘッダー
    ------------------------------ */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 900;
  backdrop-filter: blur(0);
  transition: backdrop-filter 0.3s ease;
}
.header::before, .header::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  transition: opacity 0.3s ease;
}
.header::before {
  background: linear-gradient(0deg, transparent 14.5%, var(--text-50) 150.5%);
  opacity: 1;
}
.header::after {
  background: linear-gradient(0deg, transparent 7%, var(--text) 121.5%);
  opacity: 0;
}

.header.is-scrolled {
  backdrop-filter: blur(4px);
}
.header.is-scrolled::before {
  opacity: 0;
}
.header.is-scrolled::after {
  opacity: 1;
}

.header__inner {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1rem;
}
@media (min-width: 768px) {
  .header__inner {
    padding: 1.5rem 35px;
  }
}

.header__brand {
  flex-shrink: 0;
}
.header__brand img {
  width: 10rem;
  height: auto;
}
@media (min-width: 768px) {
  .header__brand img {
    width: 212px;
  }
}

.header__nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 0.25rem;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: transparent;
  border: none;
}
@media (min-width: 1024px) {
  .header__nav-toggle {
    display: none;
  }
}

.header__nav-toggle-line {
  width: 1.5rem;
  height: 2px;
  background-color: var(--white);
}

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

.header__nav {
  display: none; /* モバイルでは非表示、JSで開閉を制御する想定 */
}
@media (min-width: 1024px) {
  .header__nav {
    display: block;
  }
}

.header__nav-list {
  display: flex;
  gap: 3rem;
  align-items: center;
  justify-content: flex-end;
}

.header__nav-link {
  display: inline-block;
  font-family: "Crimson Text", var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text-inverse);
  letter-spacing: 0.1125em;
  text-decoration: none;
  transition: color 0.3s ease, opacity 0.3s ease, letter-spacing 0.3s ease;
}
.header__nav-link.is-active {
  color: var(--accent);
  opacity: 1;
}

.header__nav-link:hover:not(.is-active),
.header__nav-link:focus-visible:not(.is-active) {
  font-family: "Crimson Text", var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text-inverse);
  letter-spacing: 0.1125em;
  opacity: 0.4;
}

.drawer-nav {
  position: fixed;
  inset: 0;
  z-index: 950;
  display: flex;
  height: 100vh;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}
@media (min-width: 1024px) {
  .drawer-nav {
    display: none;
  }
}

.drawer-nav.is-open {
  pointer-events: auto;
  opacity: 1;
}

.drawer-nav__panel {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 4rem;
  align-items: center;
  width: 100%;
  height: 100%;
  overflow: scroll;
  background: rgba(13, 22, 56, 0.9);
  opacity: 0;
  backdrop-filter: blur(2px);
  transition: opacity 0.35s ease;
}

.drawer-nav.is-open .drawer-nav__panel {
  opacity: 1;
}

.drawer-nav__header {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.drawer-nav__close {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  background: transparent;
  border: none;
}

.drawer-nav__close-line {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.5rem;
  height: 2px;
  background: var(--white);
  transform-origin: center;
}

.drawer-nav__close-line:first-child {
  transform: translate(-50%, -50%) rotate(45deg);
}

.drawer-nav__close-line:last-child {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.drawer-nav__list {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0 0 4rem;
}

.drawer-nav__link {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text-inverse);
  letter-spacing: 0.1125em;
  text-decoration: none;
}

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

/* ------------------------------
      セクション共通見出し
      ※Aboutはデザインが異なるため別クラス
    ------------------------------ */
.section-heading {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .section-heading {
    text-align: center;
  }
}
@media (min-width: 1024px) {
  .section-heading {
    text-align: start;
  }
}

.section-heading__title {
  margin-left: 0.4em;
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text);
  letter-spacing: 0.08em;
}
@media (min-width: 768px) {
  .section-heading__title {
    margin-left: unset;
    font-size: 3.5rem;
  }
}

.section-heading__label {
  margin-left: 1.5em;
  font-family: var(--font-roman);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text-soft);
  letter-spacing: 0.2em;
}
@media (min-width: 768px) {
  .section-heading__label {
    margin-left: unset;
    font-size: 1.5rem;
  }
}

/* ------------------------------
      ヒーロー
    ------------------------------ */
.hero {
  position: relative;
  padding-block: 0;
}

.hero__background img {
  width: 100%;
  height: auto;
  -o-object-fit: cover;
     object-fit: cover;
}

.hero__content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  max-width: 20rem;
  padding: 3.5rem 0;
  margin: auto;
}
@media (min-width: 768px) {
  .hero__content {
    max-width: 76rem;
    padding: 8rem 1rem;
  }
}

.hero__tagline {
  max-width: 35rem;
}
@media (min-width: 768px) {
  .hero__tagline {
    max-width: min(39.3055555556vw, 566px);
  }
}

/* ------------------------------
      About
      ------------------------------ */
.about {
  padding-top: 2.5rem;
  padding-bottom: 4rem;
}
@media (min-width: 768px) {
  .about {
    padding-top: 5.5rem;
    padding-bottom: 0;
  }
}
@media (min-width: 1024px) {
  .about {
    padding-bottom: 5.5rem;
  }
}

.about__inner {
  --container-width: 1026px;
  display: grid;
  gap: 2rem;
  max-width: 67rem;
}

.about__body {
  display: grid;
  grid-template-areas: "head" "media" "text";
  grid-template-columns: 1fr;
  gap: 0;
}
@media (min-width: 768px) {
  .about__body {
    grid-template-areas: "head" "text" "media";
  }
}
@media (min-width: 1024px) {
  .about__body {
    grid-template-areas: "media head" "media text";
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.2fr);
    gap: 1.5rem min(4.1666666667vw, 3.75rem);
    align-items: start;
  }
}

.about__media {
  position: relative;
  z-index: -1;
  grid-area: media;
  width: 100vw;
  margin: -5rem calc(50% - 50vw) 0;
  overflow: hidden;
}
@media (min-width: 768px) {
  .about__media {
    margin: 2rem calc(50% - 50vw) 0;
  }
}
@media (min-width: 1024px) {
  .about__media {
    width: auto;
    max-width: 464px;
    margin: unset;
  }
}
@media (min-width: 768px) {
  .about__media img {
    width: 100%;
    height: auto;
    aspect-ratio: 21/9;
    -o-object-fit: cover;
       object-fit: cover;
    -o-object-position: center top;
       object-position: center top;
  }
}
@media (min-width: 1024px) {
  .about__media img {
    aspect-ratio: unset;
  }
}

.about__head {
  display: grid;
  grid-area: head;
}
@media (min-width: 768px) {
  .about__head {
    width: 100%;
    max-width: 30rem;
    margin-inline: auto;
  }
}
@media (min-width: 1024px) {
  .about__head {
    width: unset;
    max-width: unset;
    padding-top: 1.5rem;
    margin-inline: unset;
  }
}
@media (min-width: 1280px) {
  .about__head {
    padding-left: 3rem;
  }
}

.about__heading {
  font-family: var(--font-roman);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text);
  letter-spacing: 0.1em;
}
@media (min-width: 768px) {
  .about__heading {
    font-size: 3.5rem;
  }
}

.about__subheading {
  display: grid;
  gap: 0.5rem;
  justify-items: start;
  margin-top: 1.5rem;
  margin-left: -1rem;
}
@media (min-width: 768px) {
  .about__subheading {
    margin-top: 2.5rem;
    margin-left: unset;
  }
}
.about__subheading span {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem 0.25rem;
  font-family: var(--font-serif);
  font-size: 1.69638rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-inverse);
  text-align: center;
  letter-spacing: 0.04em;
  background: var(--text);
}
@media (min-width: 768px) {
  .about__subheading span {
    font-size: 1.75rem;
    line-height: 1.6;
  }
}

.about__text {
  grid-area: text;
  padding: 2rem 1rem 0;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.8;
  color: var(--text);
  letter-spacing: 0.02em;
}
@media (min-width: 768px) {
  .about__text {
    width: 100%;
    max-width: 30rem;
    padding: 2rem 0 0;
    margin-inline: auto;
  }
}
@media (min-width: 1280px) {
  .about__text {
    width: unset;
    max-width: unset;
    padding: 0 0 0 3rem;
    margin-inline: unset;
  }
}

/* ------------------------------
      Business
    ------------------------------ */
.business {
  padding-top: 4rem;
  padding-bottom: 2.5rem;
  background: var(--bg-section);
}
@media (min-width: 768px) {
  .business {
    padding-top: 8.5rem;
    padding-bottom: 8rem;
  }
}

.business__background {
  position: absolute;
  inset: -5% 0 auto;
  z-index: 0;
  overflow: hidden;
}
@media (min-width: 768px) {
  .business__background {
    inset: 1% 0 0;
  }
}
.business__background img {
  width: 100%;
  max-width: unset;
}

.business__inner {
  display: flex;
  flex-direction: column;
}

.business__cards {
  display: flex;
  flex-direction: column;
  margin-top: 3rem;
}
@media (min-width: 768px) {
  .business__cards {
    margin-top: 5rem;
  }
}
@media (min-width: 1280px) {
  .business__cards {
    margin-top: unset;
  }
}

.business-card {
  position: relative;
  display: grid;
}
.business-card + .business-card {
  margin-top: 3rem;
}
@media (min-width: 768px) {
  .business-card + .business-card {
    margin-top: 6rem;
  }
}
@media (min-width: 1024px) {
  .business-card {
    align-items: center;
    padding-bottom: 2.5rem;
  }
}

.business-card__media {
  width: 100vw;
  height: auto;
  aspect-ratio: 1;
  margin-inline: calc(50% - 50vw);
}
@media (min-width: 768px) {
  .business-card__media {
    width: auto;
    max-width: 49.35663rem;
    aspect-ratio: 789.71/479.46;
    margin-inline: unset;
    overflow: hidden;
  }
}
@media (min-width: 1024px) {
  .business-card__media:where(.business__cards > *:nth-of-type(odd) *) {
    margin: 0 -1rem 0 auto;
  }
  .business-card__media:where(.business__cards > *:nth-of-type(even) *) {
    margin: 0 auto 0 -1rem;
  }
}
@media (min-width: 1280px) {
  .business-card__media:where(.business__cards > *:nth-of-type(odd) *) {
    margin: 0 -4rem 0 auto;
  }
  .business-card__media:where(.business__cards > *:nth-of-type(even) *) {
    margin: 0 auto 0 -4rem;
  }
}
.business-card__media img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}

.business-card__body {
  position: static;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
  width: 100%;
  padding: 2.5rem 2rem;
  margin: -8.5rem auto auto;
  background: var(--white);
}
@media (min-width: 768px) {
  .business-card__body {
    max-width: 30rem;
    padding: 2rem 1.5rem;
  }
}
@media (min-width: 1024px) {
  .business-card__body {
    position: absolute;
    width: 33rem;
    padding: 3.5rem 2.5rem;
    margin: unset;
  }
  .business-card__body:where(.business__cards > *:nth-of-type(odd) *) {
    inset: auto auto 0 5.5rem;
  }
  .business-card__body:where(.business__cards > *:nth-of-type(even) *) {
    inset: auto 1rem 0 auto;
  }
}

.business-card__title {
  width: -moz-fit-content;
  width: fit-content;
  margin-inline: auto;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
  letter-spacing: 0.05em;
}
@media (min-width: 768px) {
  .business-card__title {
    width: 100%;
  }
}
.business-card__title small {
  font-size: 0.8333333333em;
}

.business-card__text {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text);
  letter-spacing: 0.0625em;
}
@media (min-width: 768px) {
  .business-card__text {
    font-size: 1.125rem;
    line-height: 1.8;
  }
}

/* ------------------------------
      Cases
    ------------------------------ */
.cases {
  padding-top: 4rem;
  padding-bottom: 4.5rem;
}
@media (min-width: 768px) {
  .cases {
    padding-top: 8rem;
    padding-bottom: 6rem;
  }
}

.cases__background {
  top: -3%;
}

.cases__list {
  display: grid;
  gap: 4rem 1.5rem;
  padding-inline: 0.5rem;
  margin: 3.5rem auto 0;
}
@media (min-width: 768px) {
  .cases__list {
    max-width: 30rem;
    padding-inline: 0;
    margin-top: 5rem;
  }
}
@media (min-width: 1024px) {
  .cases__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-width: 1035px;
  }
}

.case-card {
  display: flex;
  flex-direction: column;
}

.case-card__media {
  position: relative;
  flex-shrink: 0;
  width: 100%;
  height: auto;
  aspect-ratio: 329/219;
}
.case-card__media img {
  width: 100%;
}

.case-card__title {
  position: absolute;
  inset: auto 0 0;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-serif);
  font-size: 1.19675rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text-inverse);
  text-align: center;
  letter-spacing: 0.02em;
  background: var(--text);
}
@media (min-width: 768px) {
  .case-card__title {
    font-size: 1.25rem;
  }
}

.case-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.case-card__client {
  font-family: var(--font-serif);
  font-size: 0.95744rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
  text-align: center;
}
@media (min-width: 768px) {
  .case-card__client {
    font-size: 1.125rem;
  }
}

.case-card__text {
  font-family: var(--font-sans);
  font-size: 0.95744rem;
  font-weight: 400;
  line-height: 1.8;
  color: var(--text);
}
@media (min-width: 768px) {
  .case-card__text {
    font-size: 1rem;
  }
}

/* ------------------------------
      Company
      ------------------------------ */
.company {
  padding-top: 4rem;
  padding-bottom: 3rem;
}
@media (min-width: 768px) {
  .company {
    padding-top: 6rem;
    padding-bottom: 6rem;
  }
}

.company__background {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.company__background * {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}

.company__header .section-heading__title {
  color: var(--white-soft);
}

.company__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem 2.5rem;
  align-items: flex-start;
  margin: 3rem auto 0;
}
@media (min-width: 768px) {
  .company__body {
    max-width: 30rem;
    margin-top: 5rem;
  }
}
@media (min-width: 1024px) {
  .company__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    max-width: 1040px;
  }
}
@media (min-width: 1280px) {
  .company__body {
    margin-top: 2rem;
  }
}

.company__map img {
  width: 100%;
  height: 27rem;
  -o-object-fit: cover;
     object-fit: cover;
}
@media (min-width: 768px) {
  .company__map img {
    height: 580px;
  }
}

.company__list {
  display: grid;
  grid-template-columns: 5rem 1fr;
  align-items: stretch;
  background: var(--white);
}
@media (min-width: 768px) {
  .company__list {
    grid-template-columns: 6rem 1fr;
    height: 100%;
  }
}

.company__term {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  justify-content: center;
  padding: 1rem 0.2rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--text);
  text-align: center;
  letter-spacing: 0.0625em;
  background: var(--bg-section);
  border-bottom: 1px solid var(--text-15);
}
@media (min-width: 768px) {
  .company__term {
    padding: 1.5rem 0.5rem;
    margin-bottom: 0;
  }
}

.company__description {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
  border-bottom: 1px solid var(--text-15);
}
@media (min-width: 768px) {
  .company__description {
    padding: 0.75rem 2.5rem;
    font-size: 1rem;
    line-height: 1.5;
  }
}
.company__description ul {
  line-height: 1.6;
  counter-reset: counter;
}
.company__description ul li {
  position: relative;
  padding-left: 1em;
}
.company__description ul li::before {
  position: absolute;
  left: 0;
  content: counter(counter) ". ";
  counter-increment: counter 1;
}

/* ------------------------------
      フッター
    ------------------------------ */
.footer {
  padding: 3rem 1rem;
  font-size: 0.85rem;
  color: var(--white);
  background-color: var(--footer);
}
@media (min-width: 768px) {
  .footer {
    padding: 3.5rem 2rem;
  }
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 77.5rem;
}
@media (min-width: 1024px) {
  .footer__inner {
    align-items: stretch;
  }
}

.footer__main {
  display: flex;
  flex-direction: column;
  gap: 2.5rem 1rem;
  align-items: flex-start;
  width: 100%;
}
@media (min-width: 1024px) {
  .footer__main {
    flex-direction: row;
    gap: 2rem;
    align-items: center;
    justify-content: space-between;
  }
}

.footer__brand {
  margin: auto;
}
@media (min-width: 768px) {
  .footer__brand {
    margin: auto auto auto 0;
  }
}
@media (min-width: 1024px) {
  .footer__brand {
    margin: auto;
  }
}

.footer__logo img {
  width: 9.98225rem;
}
@media (min-width: 768px) {
  .footer__logo img {
    width: 212px;
  }
}

.footer__nav {
  width: 100%;
}
@media (min-width: 1024px) {
  .footer__nav {
    display: flex;
    flex: 1;
    justify-content: flex-end;
  }
}

.footer__nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
}
@media (min-width: 768px) {
  .footer__nav-list {
    gap: 1rem 3rem;
    justify-content: flex-start;
  }
}
@media (min-width: 1024px) {
  .footer__nav-list {
    justify-content: flex-end;
  }
}

.footer__nav-link {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text-inverse);
  letter-spacing: 0.125em;
  text-decoration: none;
  transition: color 0.3s ease, letter-spacing 0.3s ease;
}

.footer__sub-nav {
  width: 100%;
  margin-top: 1rem;
}
@media (min-width: 768px) {
  .footer__sub-nav {
    margin-top: 2rem;
  }
}
@media (min-width: 1024px) {
  .footer__sub-nav {
    width: auto;
    margin-top: 0.5rem;
  }
}

.footer__sub-nav-link {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1;
  color: var(--text-inverse);
  -webkit-text-decoration: underline solid rgba(255, 255, 255, 0.5) 0.5px;
          text-decoration: underline solid rgba(255, 255, 255, 0.5) 0.5px;
  -webkit-text-decoration-skip: ink;
          text-decoration-skip-ink: auto;
  text-underline-position: from-font;
  text-underline-offset: auto;
  transition: color 0.3s ease, letter-spacing 0.3s ease;
}

.footer__nav-link:hover,
.footer__nav-link:focus-visible {
  color: var(--accent);
}

.footer__sub-nav-link:hover,
.footer__sub-nav-link:focus-visible {
  color: var(--accent);
}

.footer__sub-nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  justify-content: center;
}
@media (min-width: 768px) {
  .footer__sub-nav-list {
    justify-content: flex-end;
  }
}

.footer__copyright {
  width: 100%;
  margin-top: 2.5rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 300;
  line-height: 1;
  color: var(--text-inverse-50);
  text-align: center;
}
@media (min-width: 768px) {
  .footer__copyright {
    margin-top: 3rem;
    text-align: right;
  }
}

/* ------------------------------
      Display Utilities
    ------------------------------ */
.u-d-none {
  display: none !important;
}

.u-d-block {
  display: block !important;
}

@media (min-width: 768px) {
  .u-d-md-none {
    display: none !important;
  }
}

@media (min-width: 768px) {
  .u-d-md-block {
    display: block !important;
  }
}

@media (min-width: 1024px) {
  .u-d-lg-none {
    display: none !important;
  }
}

@media (min-width: 1024px) {
  .u-d-lg-block {
    display: block !important;
  }
}

/* ------------------------------
      Page Header (共通下層)
    ------------------------------ */
.page-header {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 17.5625rem;
  padding-block: 3rem 1rem;
  overflow: hidden;
  color: var(--text-inverse);
  text-align: center;
  isolation: isolate;
  backdrop-filter: blur(10px);
}
@media (min-width: 768px) {
  .page-header {
    min-height: 25rem;
    padding-block: 4rem 1rem;
  }
}

.page-header__background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-header__background::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background: linear-gradient(0deg, color-mix(in srgb, var(--text) 80%, transparent) 0%, color-mix(in srgb, var(--text) 80%, transparent) 100%);
}

.page-header__background picture,
.page-header__background img {
  display: block;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}

.page-header__inner {
  position: relative;
  z-index: 1;
}

.page-header__title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.4;
}
@media (min-width: 768px) {
  .page-header__title {
    font-size: 3rem;
    letter-spacing: 0.06em;
  }
}

.p-privacy {
  background: var(--white);
}

.privacy-content {
  display: flex;
  justify-content: center;
  padding: 5rem 1rem 6rem;
  background: var(--white);
}
@media (min-width: 768px) {
  .privacy-content {
    padding: 5rem 0 6rem;
  }
}

.privacy-content__inner {
  --container-width: 44rem;
  font-family: var(--font-sans);
  line-height: 1.8;
  color: var(--text);
  letter-spacing: 0.09rem;
}

.privacy-content__heading {
  width: 100%;
  margin-top: 3rem;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.8;
  color: var(--text);
  letter-spacing: 0.12rem;
}

.privacy-content__text {
  margin-top: 1rem;
  font-family: var(--font-sans);
  line-height: 1.8;
  color: var(--text);
  letter-spacing: 0.04rem;
}
@media (min-width: 768px) {
  .privacy-content__text {
    font-size: 1.125rem;
  }
}

/* ------------------------------
      Asset Preview (Temporary)
    ------------------------------ */
.asset-preview {
  padding: 3rem 0 4rem;
  background: var(--bg-section);
}

.asset-preview__inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  color: var(--text);
}

.asset-preview__title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.asset-preview__note {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.asset-preview__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.asset-preview__item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--white);
  border: 1px dashed var(--text-15);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--text) 6%, transparent);
}

.asset-preview__image {
  width: 100%;
  max-height: 260px;
  -o-object-fit: contain;
     object-fit: contain;
  background: var(--bg-section);
  border: 1px solid var(--text-15);
}

.asset-preview__caption {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.4;
  color: var(--text);
  word-break: break-all;
}