:root {
  --bg: #091425;
  --bg-soft: #10203b;
  --panel: rgba(8, 20, 42, 0.78);
  --panel-strong: rgba(12, 28, 56, 0.92);
  --text: #edf6ff;
  --muted: #bfd0e8;
  --line: rgba(196, 220, 255, 0.12);
  --accent: #59d5ff;
  --accent-deep: #a7ecff;
  --accent-soft: rgba(89, 213, 255, 0.14);
  --shadow: 0 24px 60px rgba(2, 8, 20, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(89, 213, 255, 0.18), transparent 26%),
    radial-gradient(circle at 88% 16%, rgba(112, 229, 255, 0.12), transparent 22%),
    linear-gradient(180deg, #07111f 0%, #0b1730 42%, #08101d 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.5;
  pointer-events: none;
}

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

body.has-intro-splash {
  overflow: hidden;
}

.intro-splash {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: minmax(280px, 430px) minmax(280px, 520px);
  justify-content: center;
  align-items: center;
  gap: 42px;
  padding: 32px;
  background:
    linear-gradient(90deg, rgba(3, 9, 20, 0.9), rgba(6, 18, 38, 0.76)),
    radial-gradient(circle at 18% 20%, rgba(89, 213, 255, 0.2), transparent 30%),
    #050b15;
  opacity: 1;
  transition: opacity 0.38s ease, visibility 0.38s ease;
}

.intro-splash[hidden] {
  display: none;
}

.intro-splash--hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-splash__media {
  width: min(100%, 360px);
  aspect-ratio: 9 / 16;
  justify-self: end;
  border-radius: 28px;
  overflow: hidden;
  background: #020711;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 34px 84px rgba(0, 0, 0, 0.48);
}

.intro-splash__media iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.intro-splash__content {
  min-width: 0;
}

.intro-splash__kicker {
  margin: 0;
  color: var(--accent-deep);
  font-family: "Outfit", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.intro-splash__content h2 {
  margin: 12px 0 16px;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  line-height: 1.08;
}

.intro-splash__content p:not(.intro-splash__kicker) {
  max-width: 30rem;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.intro-splash__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.intro-splash__button {
  margin-top: 28px;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
}

.intro-splash__actions .intro-splash__button {
  margin-top: 0;
}

.intro-splash__button:disabled {
  cursor: default;
  opacity: 0.72;
  transform: none;
}

.site-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(6, 18, 38, 0.72);
  backdrop-filter: blur(14px);
  border-radius: 24px;
  position: sticky;
  top: 18px;
  z-index: 10;
  box-shadow: var(--shadow);
}

.brand-mark,
.brand-name,
.section-kicker,
.eyebrow,
.panel-label,
.service-index {
  margin: 0;
}

.brand-mark,
.eyebrow,
.section-kicker,
.panel-label,
.service-index {
  color: var(--accent-deep);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: "Outfit", sans-serif;
  font-size: 0.82rem;
}

.brand-name {
  margin-top: 4px;
  font-size: 1.1rem;
  font-weight: 800;
}

.site-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.94rem;
}

.site-nav a:hover,
.site-nav a:focus {
  color: #fff;
}

.hero,
.section,
.contact-card {
  border-radius: 32px;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 30px;
  padding: 44px;
  margin-top: 28px;
  overflow: hidden;
  position: relative;
}

.site-cover-image {
  margin: 0 0 28px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.site-cover-image img {
  display: block;
  width: 100%;
  height: auto;
}

.hero-copy,
.hero-visual {
  position: relative;
  z-index: 1;
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto auto -160px -110px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(89, 213, 255, 0.18), transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 40%),
    radial-gradient(circle at 72% 32%, rgba(89, 213, 255, 0.11), transparent 24%);
  pointer-events: none;
}

.hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.hero-logo {
  display: block;
  width: min(220px, 54%);
  margin-top: 16px;
  border-radius: 26px;
  box-shadow: 0 20px 48px rgba(4, 10, 24, 0.3);
}

.hero-text,
.intro-card p,
.feature-main-card p,
.point-card p,
.support-card p,
.notice-box p,
.shop-card p,
.contact-card p,
.visual-caption,
.mini-note p {
  color: var(--muted);
  line-height: 1.85;
}

.hero-emphasis {
  display: block;
  margin: 1em 0;
  color: #fff;
  font-size: 1.06em;
  font-weight: 800;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #d8f6ff;
  font-weight: 700;
  font-size: 0.92rem;
}

.hero-proof-card {
  margin-top: 20px;
  padding: 18px 20px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(89, 213, 255, 0.12), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(167, 236, 255, 0.18);
  box-shadow: inset 0 0 24px rgba(89, 213, 255, 0.06);
}

.hero-proof-label,
.hero-proof-card h2,
.hero-proof-card ul,
.hero-proof-note {
  margin: 0;
}

.hero-proof-label {
  color: var(--accent-deep);
  font-family: "Outfit", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-proof-card h2 {
  margin-top: 8px;
  font-size: 1.08rem;
  line-height: 1.5;
}

.hero-proof-card ul {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  padding-left: 1.1em;
  color: var(--text);
  font-weight: 700;
  line-height: 1.65;
}

.hero-proof-note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.hero-actions,
.contact-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.contact-side {
  display: grid;
  gap: 20px;
  min-width: 0;
  align-content: start;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  font-weight: 700;
}

.social-link:hover,
.social-link:focus {
  background: rgba(89, 213, 255, 0.12);
}

.contact-card .section-kicker {
  color: var(--accent-deep);
}

.shop-card {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  align-items: center;
  gap: 24px;
  padding: 28px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
}

.shop-card h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.shop-card p {
  margin: 0;
}

.shop-copy .button {
  margin-top: 22px;
}

.shop-use-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.shop-use-list span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(89, 213, 255, 0.12);
  border: 1px solid rgba(89, 213, 255, 0.22);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
}

.shop-visual {
  overflow: hidden;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.45);
  box-shadow: 0 20px 48px rgba(4, 10, 24, 0.2);
}

.shop-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 22px;
}

.contact-product-image {
  display: block;
  width: min(100%, 360px);
  margin-top: 34px;
  padding: 14px;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 20px 48px rgba(4, 10, 24, 0.24);
}

.social-embeds {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.social-embed-card {
  padding: 20px;
  border-radius: 24px;
  background: rgba(12, 28, 56, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 100%;
  min-width: 0;
  overflow: hidden;
}

.social-embed-card .panel-label {
  margin-bottom: 14px;
}

.social-embed-card iframe,
.social-embed-card .instagram-media {
  width: 100% !important;
}

.social-embed-card iframe {
  max-width: 100% !important;
}

.social-embed-card .instagram-media {
  max-width: 100% !important;
  min-width: 0 !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
}

.x-profile-card {
  display: grid;
  gap: 18px;
  padding: 22px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(17, 29, 54, 0.96), rgba(9, 18, 35, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.x-profile-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.x-profile-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: #0b111b;
  color: #fff;
  font-family: "Outfit", sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.x-profile-name,
.x-profile-handle,
.x-profile-text {
  margin: 0;
}

.x-profile-name {
  color: #fff;
  font-weight: 800;
  font-size: 1.05rem;
}

.x-profile-handle {
  margin-top: 4px;
  color: var(--accent-deep);
  font-size: 0.94rem;
}

.x-profile-text {
  color: var(--muted);
  line-height: 1.8;
}

.x-profile-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  background: rgba(89, 213, 255, 0.12);
  border: 1px solid rgba(89, 213, 255, 0.24);
  color: #e9fbff;
  font-weight: 800;
}

.x-profile-button:hover,
.x-profile-button:focus {
  background: rgba(89, 213, 255, 0.2);
}

@media (max-width: 980px) {
  .social-embeds {
    grid-template-columns: 1fr;
  }
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover,
.button:focus {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(4, 10, 24, 0.28);
}

.button-primary {
  background: linear-gradient(135deg, #16b9f2, #7bddff);
  color: #08304f;
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.hero-symbols {
  position: absolute;
  inset: 10px 8px 10px auto;
  width: min(46%, 460px);
  pointer-events: none;
  opacity: 1;
  z-index: 0;
}

.shell-fan {
  position: absolute;
  top: -8px;
  right: -4px;
  width: 280px;
  height: 210px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 12px;
}

.shell-fan span {
  display: block;
  width: 28px;
  height: 182px;
  border-radius: 999px 999px 18px 18px;
  background: linear-gradient(180deg, rgba(233, 251, 255, 0.98), rgba(120, 226, 255, 0.4));
  transform-origin: center bottom;
  box-shadow:
    0 0 26px rgba(89, 213, 255, 0.22),
    0 0 56px rgba(89, 213, 255, 0.12);
}

.shell-fan span:nth-child(1) { transform: rotate(-44deg) translateY(16px); }
.shell-fan span:nth-child(2) { transform: rotate(-29deg) translateY(8px); }
.shell-fan span:nth-child(3) { transform: rotate(-15deg) translateY(3px); }
.shell-fan span:nth-child(4) { transform: rotate(0deg); }
.shell-fan span:nth-child(5) { transform: rotate(15deg) translateY(3px); }
.shell-fan span:nth-child(6) { transform: rotate(29deg) translateY(8px); }
.shell-fan span:nth-child(7) { transform: rotate(44deg) translateY(16px); }

.fuji-silhouette {
  position: absolute;
  right: 0;
  bottom: -8px;
  width: 360px;
  height: 230px;
  background:
    linear-gradient(180deg, rgba(246, 252, 255, 0.96) 0 20%, transparent 20%),
    linear-gradient(180deg, rgba(190, 241, 255, 0.28), rgba(17, 44, 81, 0));
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  border-radius: 18px;
  opacity: 0.62;
  filter:
    drop-shadow(0 14px 30px rgba(4, 10, 24, 0.32))
    drop-shadow(0 0 30px rgba(89, 213, 255, 0.14));
}

.hero-visual {
  display: grid;
  gap: 18px;
  align-content: start;
}

.visual-card,
.intro-card,
.feature-main-card,
.feature-side-card,
.support-card,
.notice-box,
.point-card {
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.visual-card {
  padding: 18px;
}

.visual-link {
  display: block;
  border-radius: 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.visual-link:hover,
.visual-link:focus {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(4, 10, 24, 0.24);
  outline: none;
}

.visual-link:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 4px;
}

.product-image {
  display: block;
  width: 100%;
  margin: 0 auto;
  background: #fff;
  border-radius: 18px;
}

.product-image-large {
  max-width: 380px;
  padding: 12px;
}

.sdgs-image {
  display: block;
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  margin: 0 auto;
  border-radius: 18px;
  box-shadow: 0 18px 44px rgba(4, 10, 24, 0.22);
}

.flyer-image {
  display: block;
  width: min(100%, 330px);
  margin: 0 auto 12px;
  border-radius: 18px;
  box-shadow: 0 16px 36px rgba(4, 10, 24, 0.22);
}

.visual-caption {
  margin: 0;
  font-size: 0.93rem;
}

.section {
  margin-top: 28px;
  padding: 38px;
}

.section-heading {
  margin-bottom: 22px;
}

.section-heading h2 {
  margin: 10px 0 0;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.24;
}

.intro-grid,
.support-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.intro-card,
.support-card {
  padding: 24px;
}

.intro-card {
  padding-top: 26px;
}

.intro-icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 24%, rgba(255, 255, 255, 0.22), transparent 34%),
    rgba(89, 213, 255, 0.14);
  border: 1px solid rgba(167, 236, 255, 0.28);
  box-shadow:
    inset 0 0 18px rgba(89, 213, 255, 0.12),
    0 12px 26px rgba(4, 10, 24, 0.2);
  color: var(--accent-deep);
}

.intro-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.concept-table {
  margin-top: 22px;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.concept-row {
  display: grid;
  grid-template-columns: 0.9fr 1.05fr 1.05fr;
}

.concept-row > div {
  padding: 18px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  line-height: 1.7;
}

.concept-row > div:last-child {
  border-right: none;
}

.concept-row:last-child > div {
  border-bottom: none;
}

.concept-head > div {
  background: rgba(89, 213, 255, 0.16);
  color: #f5fbff;
  font-weight: 800;
}

.concept-row > div:first-child {
  color: var(--accent-deep);
  font-weight: 700;
}

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

.video-card {
  padding: 18px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.video-frame {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 18px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-link {
  margin: 12px 4px 2px;
}

.video-link a {
  color: var(--accent-deep);
  font-weight: 700;
  text-decoration: underline;
}

.feature-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.feature-main-card,
.feature-side-card {
  padding: 26px;
}

.lead {
  color: var(--text);
  font-size: 1.14rem;
  font-weight: 500;
}

.feature-points {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.point-card {
  padding: 18px 20px;
}

.point-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.point-icon {
  display: inline-grid;
  flex: 0 0 auto;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background:
    radial-gradient(circle at 30% 22%, rgba(255, 255, 255, 0.18), transparent 35%),
    rgba(89, 213, 255, 0.13);
  border: 1px solid rgba(167, 236, 255, 0.24);
  color: var(--accent-deep);
}

.point-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.point-card-head h4 {
  margin: 0;
}

.point-card h4,
.intro-card h3,
.feature-main-card h3,
.support-card h3,
.feature-side-card h3,
.feature-side-card h4,
.use-case-card h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

.check-list {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--text);
  line-height: 1.9;
  font-weight: 500;
}

.mini-note {
  margin-top: 22px;
  padding: 16px 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(89, 213, 255, 0.12), rgba(255, 255, 255, 0.04));
}

.ingredient-card h3 {
  margin-top: 10px;
}

.sds-card {
  margin-top: 22px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.sds-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: end;
  margin-bottom: 14px;
}

.sds-header h4,
.sds-header p {
  margin: 0;
}

.sds-header h4 {
  font-size: 1rem;
  color: #fff;
}

.sds-header p {
  color: var(--accent-deep);
  font-weight: 800;
}

.sds-table {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.sds-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
}

.sds-row > div {
  padding: 12px 10px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  line-height: 1.6;
  font-size: 0.92rem;
}

.sds-row > div:last-child {
  border-right: none;
}

.sds-row:last-child > div {
  border-bottom: none;
}

.sds-head > div {
  background: rgba(89, 213, 255, 0.16);
  color: #f5fbff;
  font-weight: 800;
}

.sds-highlight {
  color: #ffd95e;
  font-weight: 800;
}

.cod-box {
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(89, 213, 255, 0.08));
}

.cod-label {
  display: inline-block;
  color: var(--accent-deep);
  font-weight: 800;
  margin-bottom: 6px;
}

.cod-box strong {
  display: block;
  font-size: 2rem;
  line-height: 1.1;
  color: #fff;
}

.cod-box p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.92rem;
}

.faq-card {
  margin-top: 22px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-card h3 {
  margin: 8px 0 14px;
}

.faq-card details {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-card details:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-card summary {
  cursor: pointer;
  padding: 13px 0;
  color: #fff;
  font-weight: 800;
  line-height: 1.6;
}

.faq-card summary::marker {
  color: var(--accent-deep);
}

.faq-card details[open] summary {
  color: var(--accent-deep);
}

.faq-card details p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 0.93rem;
}

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

.use-case-card {
  padding: 22px;
  border-radius: 22px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.use-case-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.use-case-link-card {
  display: block;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.use-case-link-card:hover,
.use-case-link-card:focus {
  transform: translateY(-2px);
  border-color: rgba(89, 213, 255, 0.32);
  background: rgba(18, 42, 82, 0.96);
}

.use-case-link-card .text-link {
  margin-top: 14px;
}

.support-link-card,
.column-link-card {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.support-link-card:hover,
.support-link-card:focus,
.column-link-card:hover,
.column-link-card:focus {
  transform: translateY(-2px);
  border-color: rgba(89, 213, 255, 0.32);
  background: rgba(18, 42, 82, 0.96);
}

.support-link-card:focus-visible,
.column-link-card:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 4px;
}

.article-image-note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.article-photo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 18px 0 26px;
}

.article-photo-grid .article-hero-image {
  height: 100%;
  margin: 0;
  object-fit: cover;
}

.notice-box {
  padding: 24px;
}

.column-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.column-card {
  padding: 24px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.column-meta {
  margin: 0 0 10px;
  color: var(--accent-deep);
  font-family: "Outfit", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.84rem;
}

.column-card h3 {
  margin: 0 0 12px;
  font-size: 1.12rem;
}

.column-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.text-link {
  display: inline-block;
  margin-top: 16px;
  color: var(--accent-deep);
  font-weight: 700;
  text-decoration: underline;
}

.article-shell {
  padding-top: 28px;
}

.back-link {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--accent-deep);
  font-weight: 700;
}

.article-page {
  padding: 38px;
  border-radius: 32px;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.article-page h1 {
  margin: 8px 0 18px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.2;
}

.article-lead {
  margin: 0 0 18px;
  font-size: 1.14rem;
  line-height: 1.9;
  color: #fff;
}

.article-video-section {
  margin: 18px 0 26px;
  padding: 18px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.article-video-section .video-frame {
  border-radius: 18px;
}

.article-hero-image {
  display: block;
  width: 100%;
  margin: 18px 0 24px;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 26px 60px rgba(2, 8, 20, 0.34);
  object-fit: cover;
}

.article-secondary-image {
  margin-top: 30px;
}

.article-body p {
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.9;
}

.article-section-title {
  margin: 42px 0 18px;
  font-size: clamp(1.6rem, 3vw, 2.35rem);
}

.article-data-card {
  margin-top: 24px;
  padding: 22px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
}

.article-data-card h3 {
  margin: 0 0 16px;
  font-size: 1.25rem;
}

.article-table-wrap {
  overflow-x: auto;
}

.article-data-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  color: var(--text);
  font-size: 0.96rem;
}

.article-data-table th,
.article-data-table td {
  padding: 13px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-align: left;
  vertical-align: top;
}

.article-data-table th {
  background: rgba(40, 200, 255, 0.16);
  color: #fff;
}

.article-data-table td {
  color: var(--muted);
}

.article-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.flyer-doc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.flyer-doc-card {
  min-width: 0;
  padding: 20px;
  border-radius: 24px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.flyer-doc-head {
  margin-bottom: 14px;
}

.flyer-doc-head h2 {
  margin: 8px 0 0;
  font-size: 1.3rem;
}

.flyer-doc-frame {
  display: block;
  width: 100%;
  height: min(72vh, 760px);
  min-height: 560px;
  border: 0;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
}

.flyer-doc-button {
  width: 100%;
  margin-top: 16px;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 24px;
  padding: 34px;
}

.contact-card > * {
  min-width: 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
  padding: 0 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .intro-splash {
    grid-template-columns: 1fr;
    gap: 24px;
    align-content: center;
  }

  .intro-splash__media {
    justify-self: center;
    width: min(68vw, 300px);
  }

  .intro-splash__content {
    text-align: center;
  }

  .intro-splash__content p:not(.intro-splash__kicker) {
    margin: 0 auto;
  }

  .intro-splash__actions {
    justify-content: center;
  }

  .site-header,
  .hero,
  .feature-layout,
  .contact-card,
  .shop-card,
  .intro-grid,
  .support-grid,
  .video-grid,
  .use-cases-grid,
  .article-photo-grid,
  .column-grid,
  .flyer-doc-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    position: static;
  }
}

@media (max-width: 720px) {
  .intro-splash {
    padding: 18px;
  }

  .intro-splash__media {
    width: min(70vw, 245px);
    border-radius: 22px;
  }

  .intro-splash__content h2 {
    font-size: 2.1rem;
  }

  .site-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 14px;
  }

  .site-header,
  .hero,
  .section,
  .contact-card {
    padding: 24px;
    border-radius: 24px;
  }

  .site-nav {
    gap: 12px 16px;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .concept-row {
    grid-template-columns: 1fr;
  }

  .concept-row > div {
    border-right: none;
  }

  .sds-row {
    grid-template-columns: 1fr;
  }

  .sds-row > div {
    border-right: none;
  }
}