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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: #fff;
  background: #111;
  font-family: "Yu Gothic", "Yu Gothic Medium", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

h1,
h2,
p {
  margin: 0;
}

p {
  font-weight: 600;
  letter-spacing: 0.05em;
}

.page {
  position: relative;
  min-height: 100vh;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background: #111;
}

.page-bg__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

:root {
  --aurora-gradient: linear-gradient(90deg, #084ea1 0%, #129fac 100%);
}

.side-nav__toggle {
  display: none;
}

.side-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 200px;
  height: 100vh;
}

.side-nav__inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 28px 20px;
}

.side-nav__logo {
  display: inline-block;
  order: 1;
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 28px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.04em;
}

.side-nav__nav {
  order: 2;
  margin-top: 40px;
}

.side-nav__nav > ul {
  display: block;
}

.side-nav__item {
  display: block;
  margin-bottom: 18px;
}

.side-nav__item:last-child {
  margin-bottom: 0;
}

.side-nav__item > a,
.side-nav__heading {
  font-family: "bodoni-egyptian-pro", "Yu Gothic", "Yu Gothic Medium", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.04em;
}

.side-nav__nav a,
.side-nav__contact a,
.side-nav__heading {
  display: inline-block;
}

.side-nav__subnav {
  display: block;
  margin-top: 8px;
  padding-left: 12px;
}

.side-nav__subnav li {
  margin: 0;
  padding: 0;
  margin-bottom: 10px;
}

.side-nav__subnav li:last-child {
  margin-bottom: 0;
}

.side-nav__subnav a {
  display: block;
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.side-nav__contact {
  order: 3;
  margin-top: auto;
  padding-top: 24px;
}

.side-nav__contact .side-nav__contact-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-width: 0;
  padding: 0 20px;
}

.side-nav__contact-button {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 10px;
  width: fit-content;
  max-width: none;
  min-width: 132px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--aurora-gradient);
  color: #fff;
  text-align: center;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  word-break: keep-all;
  overflow-wrap: normal;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
  vertical-align: middle;
}

.side-nav__contact-button span {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 1em;
  white-space: nowrap;
  word-break: keep-all;
  overflow-wrap: normal;
}

.side-nav__contact i {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  font-size: 15px;
  line-height: 1em;
}

.side-nav__item--mobile-contact {
  display: none;
}

.hero-view {
  position: sticky;
  top: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  --hero-title-progress: 0;
}

.hero-view:not(.is-ready) .hero__title,
.hero-view:not(.is-ready) .hero__corner-logo,
.hero-view:not(.is-ready) .scroll-hint {
  visibility: hidden;
}

.hero {
  width: 100%;
  padding: 64px 0 0;
}

.hero__title-wrap {
  position: relative;
  display: flex;
  flex: 1 1 auto;
  align-items: flex-end;
  min-height: 100%;
  padding-bottom: 32px;
}

.hero__eyebrow {
  margin-bottom: 18px;
  font-size: 14px;
  letter-spacing: 0.08em;
}

.hero__title {
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Noto Serif JP", serif;
  font-size: 100px;
  line-height: 1.15;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero__title-line {
  display: block;
  white-space: nowrap;
}

.hero__title-char,
.hero__corner-logo-char,
.scroll-hint__char,
.scroll-hint__arrow {
  display: inline-block;
  will-change: transform, opacity, filter;
  transition-property: transform, opacity, filter;
  transition-duration: 2s, 0.85s, 0.85s;
  transition-timing-function: ease, ease, ease;
  transition-delay: 0ms, var(--char-fade-delay, 0ms), var(--char-fade-delay, 0ms);
  transform: translate(
      calc(var(--char-scatter-x, 0px) * var(--hero-title-progress)),
      calc(var(--char-scatter-y, 0px) * var(--hero-title-progress))
    )
    rotate(calc(var(--char-rotate, 0deg) * var(--hero-title-progress)))
    scale(calc(1 + (var(--hero-title-progress) * 0.035)));
  opacity: calc(1 - var(--hero-title-progress));
  filter: blur(calc(var(--hero-title-progress) * 2px));
}

.scroll-hint {
  flex: 0 0 auto;
  padding: 0 0 20px;
}

.scroll-hint__label {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-align: center;
  opacity: 0.7;
}

.scroll-hint__arrow {
  position: relative;
  width: 10px;
  height: 10px;
}

.scroll-hint__arrow::before {
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  animation: scrollHintBounce 1.6s ease-in-out infinite;
}

@keyframes scrollHintBounce {
  0%,
  100% {
    transform: translateY(0) rotate(45deg);
    opacity: 0.45;
  }

  50% {
    transform: translateY(6px) rotate(45deg);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-hint__arrow::before {
    animation: none;
  }
}

.hero__corner-logo {
  position: absolute;
  right: 0;
  bottom: 32px;
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 50px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.04em;
}

.intro-copy {
  padding-top: 192px;
  margin-bottom: 500px;
}

.intro-copy > p {
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Noto Serif JP", serif;
  font-size: 24px;
  line-height: 1.9;
}

.intro-copy > p + p {
  margin-top: 16px;
}

.page-main {
  margin-left: 200px;
  min-width: 0;
}

.page-main__inner {
  width: min(1400px, 90%);
  margin: 0 auto;
  padding: 0;
}

.page-header {
  padding: 80px 0 72px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.page-header--service {
  padding-bottom: 40px;
}

.page-header__crumb {
  margin: 0 0 28px;
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.12em;
  opacity: 0.55;
}

.page-header__title {
  max-width: 1100px;
  margin: 0;
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Noto Serif JP", serif;
  font-size: 80px;
  line-height: 1.22;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.page-header__lead {
  max-width: 860px;
  margin-top: 28px;
}

.page-header__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 40px;
}

.page-header__nav-button {
  display: block;
  width: 192px;
  max-width: 100%;
}

.page-header__nav-svg {
  display: block;
  width: 100%;
  height: auto;
}

.content-block {
  padding: 72px 0 144px;
}

.content-block__eyebrow {
  margin: 0 0 3px;
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 20px;
  line-height: 1.7;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: underline;
  text-underline-offset: 6px;
  text-decoration-thickness: 1px;
}

.content-block__label {
  margin-bottom: 40px;
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Noto Serif JP", serif;
  font-size: 64px;
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #fff;
}

.content-block__katakana {
  letter-spacing: -0.1em;
}

.content-block__logo-word {
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.content-block__eyebrow + .content-block__label {
  margin-top: 0;
}

.content-block__eyebrow--spaced {
  margin-bottom: 20px;
}

.br-pc {
  display: block;
}

.br-sp {
  display: none;
}

.content-block p + p {
  margin-top: 16px;
}

.about-overview {
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.about-overview__row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  margin: 0;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.about-overview__term,
.about-overview__desc {
  margin: 0;
}

.about-overview__term {
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.72);
}

.about-overview__desc {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.92);
}

.about-overview__desc p {
  margin: 0;
}

.about-overview__desc p + p {
  margin-top: 10px;
}

.about-overview--values .about-overview__desc p:first-child {
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Noto Serif JP", serif;
  font-size: 36px;
  line-height: 1.35;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #fff;
}

.about-overview--body .about-overview__term,
.about-overview--body .about-overview__desc {
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: 0.05em;
}

.about-overview--body .about-overview__term {
  color: rgba(255, 255, 255, 0.92);
}

.services-intro {
  margin-bottom: 40px;
}

.js [data-fade-card] {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition:
    opacity 1.05s ease,
    transform 1.05s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--fade-delay, 0ms);
  will-change: opacity, transform;
}

.js [data-fade-card].is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (prefers-reduced-motion: reduce) {
  .js [data-fade-card] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.support-card {
  min-height: 100%;
  padding: 28px 28px 32px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.support-card__num {
  margin-bottom: 18px;
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 18px;
  line-height: 1;
  letter-spacing: 0.06em;
}

.support-card__title {
  margin: 0;
  font-size: 30px;
  line-height: 1.45;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.support-card__body {
  margin-top: 24px;
}

.support-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
  margin-top: 24px;
}

.support-tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  background:
    linear-gradient(rgba(14, 42, 96, 0.96), rgba(14, 42, 96, 0.96)) padding-box,
    linear-gradient(270deg, #084ea1 0%, #129fac 100%) border-box;
  color: #f6f8ff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.04em;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-bottom: 40px;
}

.process-card {
  min-height: 100%;
  padding: 28px 28px 32px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.process-card__num {
  margin-bottom: 18px;
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 18px;
  line-height: 1;
  letter-spacing: 0.06em;
}

.process-card__title {
  margin: 0;
  font-size: 30px;
  line-height: 1.45;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.process-card__body {
  margin-top: 24px;
}

.faq-card__toggle {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: default;
}

.faq-card__icon {
  display: none;
}

.faq-card__panel[hidden] {
  display: block;
}

.process-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
  margin-top: 24px;
}

.process-tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  font-size: 13px;
  line-height: 1.3;
  letter-spacing: 0.04em;
}

.services-link {
  margin-top: 48px;
  display: flex;
  justify-content: center;
}

.services-link__button {
  position: relative;
  display: block;
  width: min(100%, 360px);
  margin: 0 auto;
}

.services-link__svg {
  display: block;
  width: 100%;
  height: auto;
}

.grecaptcha-badge {
  bottom: 0 !important;
  transform: scale(0.8);
  transform-origin: right bottom;
}

.service-cta {
  position: relative;
  padding: 72px 56px 80px;
  border-radius: 32px;
  background:
    radial-gradient(circle at top right, rgba(18, 159, 172, 0.22), transparent 34%),
    radial-gradient(circle at top left, rgba(8, 78, 161, 0.2), transparent 38%),
    rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(16px);
}

.service-cta .content-block__label {
  margin-bottom: 24px;
  font-size: 64px;
}

.service-cta p {
  max-width: 760px;
  margin-bottom: 0;
}

.service-cta .services-link {
  justify-content: flex-start;
  margin-top: 36px;
}

.service-cta .services-link__button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 62px;
  padding: 0 28px;
  border-radius: 999px;
  background: var(--aurora-gradient);
  color: #fff;
  margin: 0;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
}

.cta-button__content {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.cta-button__icon {
  font-size: 16px;
  margin-right: 8px;
}

.cta-button__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.08em;
  text-align: center;
}

.cta-button__arrow {
  position: absolute;
  right: 28px;
  font-size: 22px;
  line-height: 1;
}

.contact-layout {
  width: min(100%, 860px);
}

#contact-form.content-block {
  padding-bottom: 0;
}

.contact-panel {
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 28px;
  background: #fff;
  backdrop-filter: blur(16px);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-form__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-form__field label,
.contact-form__check {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.contact-form__field label {
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  text-transform: uppercase;
  color: #1e2430;
  opacity: 1;
}

.contact-form__required {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(18, 159, 172, 0.12);
  color: #0f6c76;
  font-size: 10px;
  letter-spacing: 0.1em;
  vertical-align: middle;
}

.contact-form__field input,
.contact-form__field textarea,
.contact-form__field select {
  width: 100%;
  padding: 15px 18px;
  border: 1px solid rgba(14, 31, 56, 0.14);
  border-radius: 12px;
  background: #fff;
  color: #10151d;
  font-family: "Yu Gothic", "Yu Gothic Medium", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: 0.04em;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
  resize: vertical;
  appearance: none;
}

.contact-form__field input::placeholder,
.contact-form__field textarea::placeholder {
  color: rgba(16, 21, 29, 0.42);
}

.contact-form__field input:focus,
.contact-form__field textarea:focus,
.contact-form__field select:focus {
  border-color: rgba(18, 159, 172, 0.68);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(18, 159, 172, 0.12);
}

.contact-form__policy-note {
  font-size: 13px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: #243040;
}

.contact-form__policy-note a,
.contact-form__check a,
.privacy-link {
  color: #0b6f86;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.contact-panel .about-overview {
  border-top-color: rgba(14, 31, 56, 0.12);
}

.contact-panel .about-overview__row {
  border-bottom-color: rgba(14, 31, 56, 0.12);
}

.contact-panel .about-overview__term {
  color: rgba(36, 48, 64, 0.72);
}

.contact-panel .about-overview__desc {
  color: #1a2432;
}

.privacy-content {
  width: min(100%, 960px);
}

.privacy-overview {
  border-top-color: rgba(255, 255, 255, 0.18);
}

.privacy-overview .about-overview__row {
  border-bottom-color: rgba(255, 255, 255, 0.18);
}

.privacy-overview .about-overview__term {
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.9;
}

.privacy-overview .about-overview__desc {
  color: rgba(255, 255, 255, 0.92);
}

.contact-form__check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #243040;
}

.contact-form__check input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: #129fac;
  flex: 0 0 auto;
}

.contact-form__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding-top: 6px;
}

.contact-form__submit {
  min-height: 58px;
  padding: 0 34px;
  border: 0;
  border-radius: 999px;
  background: var(--aurora-gradient);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.contact-form__submit:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.contact-thanks__text {
  color: rgba(255, 255, 255, 0.92);
  font-size: 18px;
  line-height: 2;
  letter-spacing: 0.04em;
}

.contact-thanks__actions {
  justify-content: flex-start;
  margin-top: 36px;
}

.contact-thanks__actions .services-link__button {
  margin: 0;
}

.contact-thanks {
  width: min(100%, 720px);
}

.contact-form__note,
.contact-form__status {
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: 0.06em;
}

.contact-form__note {
  color: rgba(36, 48, 64, 0.72);
}

.contact-form__recaptcha-note {
  margin-top: 40px;
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: rgba(36, 48, 64, 0.72);
}

.contact-form__recaptcha-note a {
  text-decoration: underline;
}

.contact-form__status {
  min-height: 0;
  color: #0f6c76;
}

.contact-form__status:empty {
  display: none;
}

.contact-form__status.is-error {
  color: #c03434;
}

.contact-page .grecaptcha-badge {
  visibility: hidden;
}

.case-block {
  position: relative;
  padding: 56px 0 64px;
  border-top: 2px solid rgba(255, 255, 255, 0.32);
}

.case-block + .case-block {
  margin-top: 0;
}

.case-block__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
}

.case-block__eyebrow {
  margin-bottom: 18px;
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: 0.1em;
}

.case-block__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
  justify-content: flex-end;
}

.case-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  background:
    linear-gradient(rgba(14, 42, 96, 0.96), rgba(14, 42, 96, 0.96)) padding-box,
    linear-gradient(270deg, #084ea1 0%, #129fac 100%) border-box;
  color: #f6f8ff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
}

.case-block__title {
  margin: 24px 0 36px;
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Noto Serif JP", serif;
  font-size: 42px;
  line-height: 1.45;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #fff;
}

.case-block__period {
  display: inline-block;
  margin-top: 0;
  margin-bottom: 0;
  padding: 6px 14px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.7;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.08);
}

.case-block__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 40px;
}

.case-block__col {
  min-height: 100%;
  padding: 0;
}

.case-block__col-label {
  margin-bottom: 14px;
  padding-bottom: 14px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.12em;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.case-block__col-text {
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.92);
}

.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;
}

.site-footer {
  margin-top: 80px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0)),
    radial-gradient(circle at top right, rgba(18, 159, 172, 0.12), transparent 28%),
    rgba(5, 5, 5, 0.7);
}

.site-footer__inner {
  width: min(1400px, calc(100% - 244px - 44px));
  margin-left: 244px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 10px;
  padding: 32px 44px 20px;
}

.site-footer__logo {
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 40px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.1em;
}

.site-footer__copy {
  max-width: 560px;
  font-size: 15px;
  line-height: 1.75;
  opacity: 0.82;
}

.site-footer__info {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 40px;
  width: 100%;
  align-items: start;
  text-align: left;
  padding-top: 6px;
}

.site-footer__block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.site-footer__heading {
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.12em;
  color: #5f5f5f;
  opacity: 1;
}

.site-footer__address {
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
}

.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, max-content));
  grid-template-rows: repeat(5, auto);
  grid-auto-flow: column;
  gap: 8px 56px;
  padding: 0;
}

.site-footer__block:last-child .site-footer__nav {
  padding-top: 4px;
}

.site-footer__nav li + li {
  margin-top: 0;
}

.site-footer__nav a {
  display: inline-block;
  padding: 0;
  vertical-align: top;
  font-family: "bodoni-egyptian-pro", "Yu Gothic", "Yu Gothic Medium", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
  font-size: 13px;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: 0.06em;
  opacity: 0.86;
}

.site-footer__meta {
  font-family: "bodoni-egyptian-pro", Georgia, serif;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.08em;
  opacity: 0.7;
  text-align: left;
  padding-top: 6px;
}

@media (max-width: 1000px) {
  .hero-view {
    top: 0;
    min-height: 100svh;
  }

  .side-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    border-right: 0;
    background: transparent;
    z-index: 20;
  }

  .side-nav.is-open {
    height: 100vh;
    background: rgba(0, 0, 0, 0.9);
  }

  .side-nav.is-scrolled:not(.is-open) {
    background: #ffffff;
    box-shadow: 0 1px 12px rgba(0,0,0,0.1);
    transition: background 0.25s ease, box-shadow 0.25s ease;
  }

  .side-nav.is-scrolled:not(.is-open) .side-nav__logo {
    color: #1a1a1a;
  }

  .side-nav.is-scrolled:not(.is-open) .side-nav__toggle span {
    background: #1a1a1a;
  }

  .side-nav__inner {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    height: auto;
    padding: 14px 20px;
    gap: 12px;
  }

  .side-nav__logo {
    order: 1;
    justify-self: start;
    font-size: 24px;
    position: relative;
    z-index: 2;
  }

  .side-nav__toggle {
    order: 3;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    justify-self: end;
    position: relative;
    z-index: 2;
  }

  .side-nav__toggle span {
    display: block;
    width: 100%;
    height: 1px;
    background: #fff;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .side-nav.is-open .side-nav__logo,
  .side-nav.is-open .side-nav__toggle {
    color: #fff;
  }

  .side-nav.is-open .side-nav__toggle span {
    background: #fff;
  }

  .side-nav__nav {
    display: none;
    position: fixed;
    inset: 0;
    padding: 84px 20px 32px;
    overflow-y: auto;
  }

  .side-nav__nav > ul {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100%;
    text-align: right;
  }

  .side-nav__item {
    margin-bottom: 40px;
  }

  .side-nav.is-open .side-nav__nav {
    display: block;
  }

  .side-nav.is-open .side-nav__nav a,
  .side-nav.is-open .side-nav__heading {
    color: #fff;
  }

  .side-nav.is-open .side-nav__heading,
  .side-nav.is-open .side-nav__item > a {
    font-size: 28px;
  }

  .side-nav.is-open .side-nav__subnav a {
    font-size: 24px;
    line-height: 0.9;
    margin: 0;
    padding: 0;
  }

  .side-nav.is-open .side-nav__toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .side-nav.is-open .side-nav__toggle span:nth-child(2) {
    opacity: 0;
  }

  .side-nav.is-open .side-nav__toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .side-nav__subnav {
    display: block;
    margin-top: 8px;
    border-left-color: rgba(255, 255, 255, 0.35);
  }

  .side-nav__subnav li {
    margin-bottom: 20px;
  }

  .side-nav__contact {
    order: 2;
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
    justify-self: end;
    position: relative;
    z-index: 2;
  }

  .side-nav__contact .side-nav__contact-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    min-height: 40px;
    min-width: 40px;
    padding: 0;
    border-radius: 999px;
    font-size: 0;
    line-height: 1;
    gap: 0;
    box-shadow: none;
  }

  .side-nav__contact .side-nav__contact-button,
  .side-nav__contact .side-nav__contact-button i {
    color: #fff;
  }

  .side-nav__contact i {
    font-size: 16px;
  }

  .side-nav__contact span {
    display: none;
  }

  .side-nav__item--mobile-contact {
    display: block;
    margin-top: 20px;
  }

  .side-nav__item--mobile-contact .side-nav__contact-button {
    display: inline-flex;
    min-width: 220px;
    justify-content: center;
    font-size: 20px;
    min-height: 56px;
    margin-left: auto;
  }

  .side-nav.is-open .side-nav__item--mobile-contact .side-nav__contact-button {
    font-size: 20px;
  }

  .hero {
    width: auto;
    flex: initial;
    padding: 84px 0 0;
  }

  .hero__title {
    font-size: 63.36px;
    line-height: 1.12;
    letter-spacing: 0;
  }

  .content-block__label {
    font-size: 36px;
    line-height: 1.26;
  }

  .hero__title-char {
    filter: none;
  }

  .hero__title-wrap {
    min-height: calc(100svh - 164px);
    padding-right: 0;
    padding-bottom: 84px;
  }

  .hero__corner-logo {
    right: 0;
    bottom: 24px;
    font-size: 34.32px;
  }

  .scroll-hint {
    padding-top: 0;
    padding-bottom: 16px;
  }

  .intro-copy {
    padding-top: 80px;
    margin-bottom: 120px;
  }

  .intro-copy > p {
    font-size: 20px;
    line-height: 1.85;
  }

  .page-main {
    margin-left: 0;
    min-width: 0;
    padding-left: 0;
  }

  .page-main__inner {
    max-width: none;
    width: 100%;
    padding: 0 20px;
  }

  .page-header {
    padding: 88px 0 56px;
  }

  .page-header--service {
    padding-top: 92px;
    padding-bottom: 40px;
  }

  .page-header__crumb {
    margin-bottom: 20px;
    font-size: 12px;
  }

  .page-header__title {
    font-size: 42px;
    line-height: 1.32;
  }

  .page-header__lead {
    margin-top: 20px;
  }

  .page-header__nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 28px;
  }

  .page-header__nav-button {
    width: 100%;
  }

  .content-block {
    padding: 48px 0 96px;
  }

  .br-sp {
    display: block;
  }

  .br-pc {
    display: none;
  }

  .support-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .support-card {
    padding: 24px 22px 28px;
    border-radius: 18px;
  }

  .support-card__title {
    font-size: 28px;
  }

  .support-card__tags {
    gap: 8px 6px;
  }

  .support-tag {
    min-height: 30px;
    padding: 0 10px;
    font-size: 12px;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .process-card {
    padding: 24px 22px 28px;
    border-radius: 18px;
  }

  .process-card__title {
    font-size: 28px;
  }

  .faq-card {
    padding: 0;
    overflow: hidden;
  }

  .faq-card__toggle {
    position: relative;
    padding: 24px 56px 20px 22px;
    cursor: pointer;
  }

  .faq-card__toggle .process-card__title {
    margin-bottom: 0;
  }

  .faq-card__panel {
    padding: 0 22px 28px;
  }

  .faq-card__panel[hidden] {
    display: none;
  }

  .faq-card__icon {
    display: block;
    position: absolute;
    top: 24px;
    right: 18px;
    width: 28px;
    height: 28px;
    border: 1px solid rgba(255, 255, 255, 0.36);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
  }

  .faq-card__icon::before,
  .faq-card__icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 2px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.96);
    transform: translate(-50%, -50%);
    transition: transform 0.25s ease;
  }

  .faq-card__icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
  }

  .faq-card__toggle[aria-expanded="true"] .faq-card__icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
  }

  .faq-card__panel .process-card__body {
    margin-top: 0;
  }

  .process-card__tags {
    gap: 8px 6px;
  }

  .process-tag {
    min-height: 30px;
    padding: 0 10px;
    font-size: 12px;
  }

  .about-overview__row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px 0;
  }

  .about-overview__term,
  .about-overview__desc {
    font-size: 14px;
  }

  .about-overview__desc {
    font-size: 16px;
  }

  .about-overview--values .about-overview__desc p:first-child {
    font-size: 30px;
  }

  .services-link {
    margin-top: 36px;
  }

  .services-link__button {
    width: min(100%, 320px);
    justify-content: center;
  }

  .service-cta {
    padding: 48px 24px 56px;
    border-radius: 24px;
  }

  .service-cta .content-block__label {
    font-size: 36px;
    margin-bottom: 18px;
  }

  .contact-form__row {
    grid-template-columns: 1fr;
  }

  .contact-panel {
    padding: 24px 22px;
    border-radius: 20px;
  }

  .case-block {
    padding: 34px 0 40px;
  }

  .case-block + .case-block {
    margin-top: 0;
  }

  .case-block__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .case-block__eyebrow {
    margin-bottom: 16px;
    font-size: 24px;
    line-height: 1.2;
  }

  .case-block__tags {
    gap: 8px 6px;
    justify-content: flex-start;
  }

  .case-tag {
    min-height: 30px;
    padding: 0 10px;
    font-size: 12px;
  }

  .case-block__title {
    margin: 20px 0 24px;
    font-size: 30px;
  }

  .case-block__period {
    margin-top: 0;
    margin-bottom: 0;
    padding: 5px 12px;
    font-size: 15px;
  }

  .case-block__cols {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .case-block__col {
    padding: 0;
  }

  .case-block__col-label {
    margin-bottom: 10px;
    padding-bottom: 10px;
    font-size: 14px;
  }

  .case-block__col-text {
    font-size: 14px;
    line-height: 1.85;
  }

  .service-cta .services-link {
    margin-top: 28px;
  }

  .service-cta .services-link__button {
    min-height: 58px;
    padding: 0 22px;
  }

  .cta-button__label {
    font-size: 14px;
  }

  .cta-button__arrow {
    right: 22px;
    font-size: 20px;
  }

  .site-footer {
    margin-top: 80px;
  }

  .site-footer__inner {
    width: auto;
    margin-left: 0;
    gap: 10px;
    padding: 22px 22px 16px;
  }

  .site-footer__logo {
    font-size: 30px;
  }

  .site-footer__copy {
    font-size: 14px;
    max-width: 100%;
  }

  .site-footer__info {
    grid-template-columns: 1fr;
    gap: 14px;
    padding-top: 4px;
  }

  .site-footer__meta {
    padding-top: 4px;
  }
}


/* ============================================================
   BLOG – コラム一覧・記事詳細スタイル
   ============================================================ */

/* ---------- コラム一覧: グリッド ---------- */
.blog-archive {
  padding-top: 40px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 1024px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .blog-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* ---- カード ---- */
.blog-card {
  border-radius: 2px;
  overflow: hidden;
  transition: transform 0.3s;
  opacity: 0;
  transform: translateY(16px);
}
.blog-card.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.55s ease var(--fade-delay,0ms),
              transform 0.55s ease var(--fade-delay,0ms);
}
.blog-card:hover { transform: translateY(-3px); }
.blog-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}
.blog-card__thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #0d1f2d;
}
.blog-card__thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.blog-card:hover .blog-card__thumb-img { transform: scale(1.04); }
.blog-card__thumb-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0e1a2e 0%, #0d2a2d 100%);
}

/* カード本文: 白背景 */
.blog-card__body {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  background: #ffffff;
}
.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.blog-card__date {
  font-family: 'Helvetica Neue', sans-serif;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(0,0,0,0.4);
}
.blog-card__cat {
  font-family: 'Helvetica Neue', sans-serif;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: #129fac;
  border: 1px solid rgba(18,159,172,0.4);
  padding: 2px 8px;
  border-radius: 1px;
}
.blog-card__title {
  font-family: '游ゴシック', 'Yu Gothic', 'YuGothic', sans-serif;
  font-size: 20px;
  line-height: 1.65;
  color: #1a1a1a;
  letter-spacing: 0.02em;
  font-weight: 700;
}
.blog-card__excerpt {
  font-size: 12px;
  line-height: 1.7;
  color: rgba(0,0,0,0.5);
  letter-spacing: 0.02em;
  font-weight: 300;
  margin-top: 0;
}

/* ---- ページネーション ---- */
.blog-pagination {
  margin-top: 56px;
  display: flex;
  justify-content: center;
  gap: 8px;
}
.blog-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-family: 'Helvetica Neue', sans-serif;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.55);
  border: 1px solid rgba(255,255,255,0.12);
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s;
}
.blog-pagination .page-numbers:hover,
.blog-pagination .page-numbers.current {
  color: #129fac;
  border-color: rgba(18,159,172,0.5);
}
.blog-empty {
  text-align: center;
  color: rgba(255,255,255,0.3);
  padding: 80px 0;
  font-size: 14px;
  letter-spacing: 0.1em;
}

/* ===== タグ絞り込み ===== */
.blog-tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}
.blog-tag-filter__btn {
  display: inline-block;
  font-size: 12px;
  color: #ffffff;
  background: #1a1a1a;
  border: 1px solid #1a1a1a;
  padding: 5px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.18s;
  letter-spacing: 0.04em;
}
.blog-tag-filter__btn.is-active {
  background: #ffffff;
  color: #1a1a1a;
  border-color: #ffffff;
}

/* ===== BLOG / COLUMN ===== */

/* ------ 記事詳細: 大きな一枚白カード ------ */

/* IMPORTANT: .single-post は WordPress が <body> にも付与するため
   必ず article.single-post でスコープを限定する。
   content-block クラスの padding を上書きする。 */
article.single-post {
  max-width: 1080px;
  margin: 40px auto 80px;
  padding: 0;
  background: #ffffff;
  border-radius: 8px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.18);
  overflow: hidden;
}

.single-post__header {
  padding: 40px 60px 0;
  background: #ffffff;
}

/* article内のパンくずは暗色スコープ */
article.single-post .page-header__crumb {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(0,0,0,0.35);
  opacity: 1;
  margin-bottom: 20px;
}
article.single-post .page-header__crumb a {
  color: rgba(0,0,0,0.35);
  text-decoration: none;
}

.single-post__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.single-post__date {
  font-size: 12px;
  color: rgba(0,0,0,0.45);
  letter-spacing: 0.05em;
}

.single-post__cats { display: flex; gap: 8px; }

.single-post__cat {
  display: inline-block;
  font-size: 11px;
  color: #ffffff;
  background: #1a1a1a;
  border: 1px solid #1a1a1a;
  padding: 2px 10px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  text-decoration: none;
}

.single-post__title {
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 700;
  line-height: 1.55;
  color: #1a1a1a;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

/* OGP サムネイル: カード全幅 (.single-post__eyecatch / __thumbnail 両対応) */
.single-post__eyecatch,
.single-post__thumbnail {
  width: 100%;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.single-post__eyecatch-img,
.single-post__eyecatch img,
.single-post__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 本文エリア */
.single-post__content {
  padding: 48px 60px 56px;
  background: #ffffff;
  color: #1a1a1a;
  font-size: 16px;
  line-height: 1.9;
}
.single-post__content h2 {
  font-size: 28px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 80px 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(0,0,0,0.15);
  line-height: 1.5;
}
.single-post__content h3 {
  font-size: 22px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 80px 0 14px;
  line-height: 1.5;
}
.single-post__content p {
  color: #2a2a2a;
  margin-bottom: 22px;
  font-size: 16px;
  font-weight: 300;
  line-height: 1.9;
}
.single-post__content a { color: rgba(18,159,172,0.85); }

/* CTAボタン */
.single-post__content a.cta-link {
  display: block;
  width: fit-content;
  margin: 40px auto;
  padding: 18px 48px;
  background: #1a1a1a;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-decoration: none;
  border-radius: 2px;
  transition: background 0.2s, transform 0.2s;
}
.single-post__content a.cta-link:hover {
  background: #333;
  transform: translateY(-2px);
}
.single-post__content ul,
.single-post__content ol {
  padding-left: 1.5em;
  margin-bottom: 22px;
}
.single-post__content li { margin-bottom: 8px; color: #2a2a2a; }
.single-post__content blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 3px solid rgba(18,159,172,0.6);
  background: rgba(18,159,172,0.04);
  color: rgba(0,0,0,0.65);
  font-size: 15px;
  line-height: 1.85;
}

/* タグ（タイトル下） */
.single-post__tags--header {
  padding: 0 0 26px;
  background: transparent;
  border-top: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

/* タグ（記事末尾） */
.single-post__tags {
  padding: 22px 60px;
  background: #f7f7f7;
  border-top: 1px solid rgba(0,0,0,0.06);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.single-post__tag {
  display: inline-block;
  font-size: 12px;
  color: #ffffff;
  background: #1a1a1a;
  border: 1px solid #1a1a1a;
  padding: 4px 14px;
  border-radius: 20px;
  text-decoration: none;
  transition: all 0.2s;
}
.single-post__tag:hover {
  background: #333;
  border-color: #333;
}


/* 新着記事 */
.related-posts {
  padding: 40px 60px;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.related-posts__heading {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: rgba(0,0,0,0.4);
  margin-bottom: 20px;
}
.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-posts__card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: #f7f7f7;
  border-radius: 6px;
  overflow: hidden;
  transition: transform 0.2s;
}
.related-posts__card:hover { transform: translateY(-3px); }
.related-posts__thumb {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #e0e0e0;
}
.related-posts__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.related-posts__card:hover .related-posts__thumb img { transform: scale(1.04); }
.related-posts__thumb-placeholder {
  width: 100%;
  height: 100%;
  background: #ddd;
}
.related-posts__body {
  padding: 12px 14px 16px;
}
.related-posts__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.related-posts__meta time {
  font-size: 11px;
  color: rgba(0,0,0,0.4);
}
.related-posts__cat {
  font-size: 10px;
  color: #ffffff;
  background: #1a1a1a;
  padding: 1px 8px;
  border-radius: 20px;
}
.related-posts__title {
  font-size: 13px;
  font-weight: 600;
  color: #1a1a1a;
  line-height: 1.55;
}

/* 著者カード */
.author-card {
  padding: 28px 60px;
  background: #fafafa;
  border-top: 1px solid rgba(0,0,0,0.06);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.author-card__avatar {
  display: none;
}
.author-card__info { flex: 1; }
.author-card__label,
.author-card__role {
  font-size: 10px;
  color: rgba(0,0,0,0.35);
  margin-bottom: 4px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.author-card__name {
  font-size: 15px;
  color: #1a1a1a;
  margin-bottom: 8px;
  font-weight: 500;
}
.author-card__name a {
  color: inherit;
  text-decoration: none;
}
.author-card__name a:hover {
  text-decoration: underline;
}
.author-card__bio {
  font-size: 13px;
  color: rgba(0,0,0,0.55);
  line-height: 1.8;
}

/* 前後ナビ */
.post-nav {
  padding: 24px 40px;
  background: #f7f7f7;
  border-top: 1px solid rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  gap: 16px;
}
.post-nav__prev,
.post-nav__next {
  flex: 1;
  min-width: 0;
}
.post-nav__next { text-align: right; }
.post-nav__back-wrap { flex-shrink: 0; }
.post-nav__label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: rgba(0,0,0,0.3);
  margin-bottom: 6px;
}
.post-nav__title {
  font-size: 12px;
  color: rgba(0,0,0,0.55);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.55;
  transition: color 0.2s;
}
.post-nav__title:hover { color: rgba(18,159,172,0.9); }
.post-nav__back {
  display: inline-block;
  font-size: 12px;
  color: rgba(0,0,0,0.5);
  border: 1px solid rgba(0,0,0,0.18);
  padding: 8px 28px;
  border-radius: 24px;
  text-decoration: none;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: all 0.2s;
}
.post-nav__back:hover {
  border-color: rgba(18,159,172,0.5);
  color: rgba(18,159,172,0.9);
}

/* ------ アーカイブ一覧 ------ */

.blog-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
  padding: 20px 0 60px;
}
.blog-card {
  background: transparent;
  border-radius: 4px;
  overflow: hidden;
  text-decoration: none;
  display: block;
  transition: transform 0.2s;
}
.blog-card:hover { transform: translateY(-4px); }
.blog-card__thumbnail { width: 100%; aspect-ratio: 16/9; overflow: hidden; }
.blog-card__thumbnail img { width: 100%; height: 100%; object-fit: cover; }
.blog-card__body {
  padding: 18px 20px 22px;
  background: #ffffff;
}
.blog-card__date {
  font-size: 11px;
  color: rgba(0,0,0,0.4);
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}
.blog-card__cat {
  display: inline-block;
  font-size: 10px;
  color: rgba(18,159,172,0.9);
  border: 1px solid rgba(18,159,172,0.4);
  padding: 1px 8px;
  border-radius: 12px;
  margin-left: 8px;
}
.blog-card__excerpt {
  font-size: 13px;
  color: rgba(0,0,0,0.6);
  line-height: 1.7;
  margin-top: 0 !important;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-pagination {
  text-align: center;
  padding: 20px 0 40px;
}
.blog-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  border-radius: 50%;
  margin: 0 2px;
  transition: background 0.2s;
}
.blog-pagination .page-numbers:hover,
.blog-pagination .page-numbers.current {
  background: rgba(18,159,172,0.3);
  color: #fff;
}

/* ===== BLOG レスポンシブ (≤1000px) ===== */
@media (max-width: 1000px) {
  article.single-post {
    margin: 24px auto 60px;
    border-radius: 8px;
  }

  .single-post__header {
    padding: 32px 28px 0;
  }

  .single-post__title {
    margin-bottom: 28px;
  }

  .single-post__content {
    padding: 36px 28px 44px;
  }

  .single-post__content h2 {
    margin: 40px 0 16px;
  }

  .single-post__tags--header {
    padding: 0 0 16px;
  }

  .single-post__tags {
    padding: 18px 28px;
  }

  .related-posts {
    padding: 32px 28px;
  }

  .author-card {
    padding: 24px 28px;
  }

  .post-nav {
    padding: 20px 28px;
    flex-wrap: wrap;
    gap: 12px;
  }

  .post-nav__prev,
  .post-nav__next {
    flex: 1 1 40%;
    min-width: 0;
  }

  .post-nav__back-wrap {
    order: -1;
    width: 100%;
    text-align: center;
  }

  .post-nav__next { text-align: right; }

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  article.single-post {
    margin: 64px auto 48px;
  }

  .single-post__title {
    font-size: 28px;
  }

  .single-post__content h2 {
    font-size: 24px;
  }

  .single-post__content h3 {
    font-size: 20px;
  }

  .single-post__header {
    padding: 28px 20px 0;
  }

  .single-post__content {
    padding: 32px 20px 40px;
  }

  .single-post__tags--header {
    padding: 0 0 16px;
  }

  .single-post__tags {
    padding: 16px 20px;
  }

  .related-posts {
    padding: 28px 0 28px 20px;
  }
  .related-posts__grid {
    display: flex;
    overflow-x: scroll;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 14px;
    padding-right: 20px;
    scrollbar-width: none;
  }
  .related-posts__grid::-webkit-scrollbar { display: none; }
  .related-posts__card {
    flex: 0 0 78%;
    scroll-snap-align: start;
  }

  .author-card {
    padding: 20px;
  }

  .post-nav {
    padding: 16px 20px;
  }

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