/* ── Hero ── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.hero-slide.active {
  opacity: 1;
}

div.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes kenburns {
  from {
    transform: scale(1);
  }

  to {
    transform: scale(1.14);
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10, 22, 40, .45) 0%, rgba(10, 22, 40, .15) 60%, rgba(10, 22, 40, .55) 100%);
}

.hero-dots {
  position: absolute;
  right: 2.5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero-dot {
  width: 6px;
  height: 6px;
  padding: 0;
  border: 0;
  border-radius: 3px;
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255, 255, 255, .35);
  cursor: pointer;
  transition: height .4s ease, background .4s ease;
}

.hero-dots[hidden] {
  display: none;
}

.hero-dot.active {
  height: 22px;
  background: #fff;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .75rem;
}

.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: rgba(255, 255, 255, .5);
  animation: scrollpulse 2s ease infinite;
}

@keyframes scrollpulse {

  0%,
  100% {
    opacity: .3;
    transform: scaleY(1);
    transform-origin: top;
  }

  50% {
    opacity: 1;
  }
}

.hero-scroll span {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .4em;
  color: rgba(255, 255, 255, .5);
  text-transform: uppercase;
}

/* Philosophy — text only, narrow label col */
.philosophy {
  padding: 7rem 0;
  background: var(--color-bg);
}

.phil-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 5rem;
  align-items: start;
}

@media(max-width:768px) {
  .phil-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.phil-label-col {
  padding-top: .5rem;
}

.phil-sep {
  width: 2rem;
  height: 1px;
  background: var(--color-muted);
  opacity: .35;
  margin-bottom: 1rem;
}

.phil-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .5em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.phil-h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: .02em;
  margin-bottom: 2rem;
}

.phil-h2 em {
  color: var(--color-accent);
  font-style: normal;
}

.phil-body {
  font-size: 13px;
  line-height: 2.2;
  color: var(--color-muted);
  letter-spacing: .05em;
  margin-bottom: 2rem;
  max-width: 560px;
}

.phil-link {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .25em;
  color: var(--color-fg);
  border-bottom: 1px solid currentColor;
  padding-bottom: .25rem;
  transition: opacity .3s;
}

.phil-link:hover {
  opacity: .6;
}

/* Support guide / Sub-page cards */
.support-guide {
  background: #fff;
  overflow: hidden;
}

.support-guide__heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 460px);
  align-items: end;
  gap: 1rem 3rem;
  margin-bottom: 2.5rem;
}

.support-guide__heading .sec-lbl {
  grid-column: 1;
}

.support-guide__heading .sec-h2 {
  grid-column: 1;
}

.support-guide__lead {
  grid-column: 2;
  grid-row: 1 / span 2;
  font-size: 13px;
  line-height: 1.9;
  color: var(--color-muted);
  letter-spacing: .04em;
}

.sub-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.sub-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 490px;
  background: var(--color-fg);
  color: #fff;
}

article.sub-card>img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .8s cubic-bezier(.2, .65, .25, 1), filter .5s ease;
}

.sub-card:hover>img,
.sub-card.is-open>img {
  transform: scale(1.06);
  filter: saturate(.8);
}

.sub-card-ov {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, .92) 0%, rgba(10, 22, 40, .48) 55%, rgba(10, 22, 40, .12) 100%);
  transition: opacity .45s ease;
}

.sub-card-trigger {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  padding: 2.5rem 2rem;
  border: 0;
  background: transparent;
  color: #fff;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  cursor: pointer;
  font: inherit;
}

.sub-card-trigger:focus-visible {
  outline: 2px solid #fff;
  outline-offset: -6px;
}

.sub-card-en {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .35em;
  color: rgba(255, 255, 255, .58);
  margin-bottom: .75rem;
  text-transform: uppercase;
}

.sub-card-ja {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 2.4vw, 2.15rem);
  font-weight: 500;
  line-height: 1.35;
  margin-bottom: 1rem;
}

.sub-card-desc {
  font-size: 12px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .7);
  letter-spacing: .04em;
  max-width: 30em;
  margin-bottom: 1.4rem;
}

.sub-card-open {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, .3);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: rgba(255, 255, 255, .85);
}

.sub-card-open span {
  font-size: 1.15rem;
  font-family: var(--font-sans);
  font-weight: 300;
  transition: transform .35s ease;
}

.sub-card.is-open .sub-card-open span {
  transform: rotate(45deg);
}

.sub-card-panel {
  position: absolute;
  z-index: 4;
  inset: 0;
  padding: 2.25rem 2rem;
  background: linear-gradient(145deg, rgba(247, 249, 252, .98), rgba(232, 237, 243, .97));
  color: var(--color-fg);
  display: flex;
  flex-direction: column;
  transform: translateY(102%);
  opacity: .2;
  visibility: hidden;
  transition: transform .58s cubic-bezier(.22, .75, .25, 1), opacity .42s ease, visibility 0s linear .58s;
}

.sub-card.is-open .sub-card-panel {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}

@media(hover:hover) and (pointer:fine) {
  .sub-card:not(.is-hover-dismissed):hover .sub-card-panel {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
  }
}

.sub-card-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(10, 22, 40, .2);
  border-radius: 50%;
  background: rgba(255, 255, 255, .7);
  color: var(--color-fg);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  transition: background .25s ease, transform .25s ease;
}

.sub-card-close:hover {
  background: #fff;
  transform: rotate(90deg);
}

.sub-card-panel__head {
  padding-right: 2.5rem;
  margin-bottom: 1.5rem;
}

.sub-card-panel__en {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .28em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: .55rem;
}

.sub-card-panel__head h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.7vw, 1.65rem);
  font-weight: 500;
  line-height: 1.45;
}

.sub-card-panel__body {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  min-height: 0;
}

.sub-card-primary {
  min-height: 70px;
  padding: 1rem 1.15rem;
  display: grid;
  grid-template-columns: 24px 1fr auto;
  align-items: center;
  gap: .7rem;
  background: #B89A6A;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .04em;
  transition: background .25s ease, transform .25s ease;
}

.sub-card-primary:hover {
  background: #A98A5C;
  transform: translateY(-2px);
}

.sub-card-primary__icon {
  font-size: 1.35rem;
  text-align: center;
}

.sub-card-textlinks {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .4rem;
  padding: .1rem 0;
}

.sub-card-textlinks p {
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: .04em;
}

.sub-card-textlinks a {
  font-size: 12px;
  line-height: 1.5;
  color: var(--color-fg);
  text-decoration: underline;
  text-underline-offset: .2em;
  text-decoration-thickness: 1px;
}

.sub-card-textlinks a::before {
  content: '›';
  display: inline-block;
  margin-right: .35rem;
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
}

.sub-card-textlinks--single a {
  font-size: 12px;
  line-height: 1.7;
}

.sub-card-actions {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  margin-top: auto;
}

.sub-card-actions a {
  min-height: 42px;
  padding: .65rem .9rem;
  border: 1px solid rgba(10, 22, 40, .45);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
  background: rgba(255, 255, 255, .45);
  color: var(--color-fg);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: .03em;
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}

.sub-card-actions a:hover {
  background: #fff;
  border-color: var(--color-fg);
  transform: translateX(2px);
}

@media(max-width:960px) {
  .support-guide__heading {
    grid-template-columns: 1fr;
  }

  .support-guide__heading .sec-lbl,
  .support-guide__heading .sec-h2,
  .support-guide__lead {
    grid-column: 1;
    grid-row: auto;
  }

  .sub-cards {
    grid-template-columns: 1fr;
    gap: 1px;
  }

  .sub-card {
    min-height: 460px;
  }

  .sub-card-trigger {
    padding: 2.25rem;
  }

  .sub-card-panel {
    padding: 2.25rem;
  }
}

@media(max-width:640px) {
  .support-guide {
    padding: 4.5rem 0;
  }

  .support-guide__heading {
    margin-bottom: 2rem;
  }

  .sub-card {
    min-height: 440px;
  }

  .sub-card-trigger,
  .sub-card-panel {
    padding: 2rem 1.5rem;
  }

  .sub-card-panel__head {
    margin-bottom: 1.1rem;
  }

  .sub-card-panel__body {
    gap: 1rem;
  }

  .sub-card-primary {
    min-height: 62px;
  }
}

@media(prefers-reduced-motion:reduce) {

  .sub-card>img,
  .sub-card-panel,
  .sub-card-close,
  .sub-card-primary,
  .sub-card-actions a {
    transition: none;
  }
}

/* Products — 製品ラインナップ */
.products-sec {
  padding: 6rem 0;
  background: var(--color-bg);
}

.sec-hd {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.sec-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .5em;
  color: var(--color-muted);
  text-transform: uppercase;
  margin-bottom: .625rem;
}

.sec-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 500;
}

.sec-all {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--color-muted);
  transition: color .3s;
}

.sec-all:hover {
  color: var(--color-fg);
}

.prod-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  background: var(--color-border);
  margin-bottom: 0;
}

@media(max-width:640px) {
  .prod-3 {
    grid-template-columns: 1fr;
  }
}

.prod-3-card {
  background: #fff;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  text-decoration: none;
  border-right: 1px solid var(--color-border);
}

.prod-3-card:last-child {
  border-right: none;
}

.prod-3-card:hover .p3-img img {
  transform: scale(1.04);
}

.p3-img {
  aspect-ratio: 4/5;
  overflow: hidden;
  background: var(--color-card);
}

.p3-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .55s;
}

.p3-body {
  padding: 1.75rem 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.p3-cat {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--color-muted);
  margin-bottom: .875rem;
  text-transform: uppercase;
}

.p3-name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: .375rem;
}

.p3-sub {
  font-size: 12px;
  color: var(--color-muted);
  margin-bottom: 1rem;
  letter-spacing: .05em;
}

.p3-desc {
  font-size: 12px;
  line-height: 1.85;
  color: var(--color-muted);
  letter-spacing: .04em;
  margin-bottom: 1.5rem;
  flex: 1;
}

.p3-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

/* Disaster banner */
.disaster-banner {
  display: grid;
  grid-template-columns: 1fr 2fr 280px;
  background: #0A1628;
  color: #fff;
  min-height: 200px;
}

.disaster-col1 {
  padding: 2.5rem 2.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid rgba(255, 255, 255, .15);
}

.disaster-col2 {
  padding: 2.5rem 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.25rem;
}

.disaster-col3 {
  overflow: hidden;
}

.disaster-col3 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.disaster-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .4em;
  color: rgba(255, 255, 255, .45);
  text-transform: uppercase;
  margin-bottom: .75rem;
}

.disaster-h {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 500;
  color: #fff;
  line-height: 1.3;
  margin-bottom: .5rem;
}

.disaster-sub {
  font-size: 12px;
  color: rgba(255, 255, 255, .5);
  letter-spacing: .15em;
}

.disaster-p {
  font-size: 13px;
  color: rgba(255, 255, 255, .65);
  letter-spacing: .04em;
  line-height: 1.85;
}

.disaster-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border: 1px solid rgba(255, 255, 255, .4);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .25em;
  color: #fff;
  transition: all .3s;
  align-self: flex-start;
}

.disaster-btn:hover {
  background: #fff;
  color: #0A1628;
}

@media(max-width:768px) {
  .disaster-banner {
    grid-template-columns: 1fr;
  }

  .disaster-col1 {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, .15);
  }

  .disaster-col3 {
    height: 200px;
  }
}

/* Category grid */
.cat-sec {
  padding: 5rem 0;
  background: var(--color-bg);
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
}

@media(max-width:768px) {
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cat-tile {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-card);
}

.cat-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}

.cat-tile:hover img {
  transform: scale(1.07);
}

.cat-tile-ov {
  position: absolute;
  inset: 0;
  background: rgba(10, 22, 40, .35);
  transition: background .3s;
}

.cat-tile:hover .cat-tile-ov {
  background: rgba(10, 22, 40, .55);
}

.cat-tile-txt {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
}

.cat-tile-en {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .35em;
  color: rgba(255, 255, 255, .6);
  text-transform: uppercase;
  margin-bottom: .25rem;
}

.cat-tile-ja {
  font-size: .9375rem;
  font-weight: 500;
  color: #fff;
}

/* Technology — light blue, 2-col */
.tech-sec {
  padding: 7rem 0;
  background: #EBF2FA;
  position: relative;
  overflow: hidden;
}

.tech-bg-img {
  position: absolute;
  right: 0;
  bottom: 0%;
  width: 100%;
  height: 100%;
  opacity: .13;
  pointer-events: none;
}

div.tech-bg-img img {
  width: 100%;
  height: 100%;
  display: block;
  transform: scaleX(-1);
  object-fit: cover;
}

.tech-inner {
  position: relative;
}

.tech-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 6rem;
  align-items: start;
}

@media(max-width:900px) {
  .tech-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
}

.tech-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .5em;
  color: var(--color-muted);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.tech-h2 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 500;
  color: var(--color-fg);
  margin-bottom: 1.75rem;
  line-height: 1.15;
  letter-spacing: .02em;
}

.tech-body {
  font-size: 13px;
  line-height: 2;
  color: var(--color-muted);
  letter-spacing: .04em;
  margin-bottom: 2.5rem;
}

.tech-btn {
  display: inline-block;
  padding: .875rem 2rem;
  border: 1px solid var(--color-fg);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .25em;
  color: var(--color-fg);
  transition: all .3s;
}

.tech-btn:hover {
  background: var(--color-fg);
  color: #fff;
}

.tech-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-left: 1px solid rgba(10, 22, 40, .12);
}

.tech-col {
  padding: 0 2rem;
}

.tech-col+.tech-col {
  border-left: 1px solid rgba(10, 22, 40, .12);
}

.tech-col-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.tech-col-h {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--color-fg);
  margin-bottom: .875rem;
  line-height: 1.4;
}

.tech-col-p {
  font-size: 12px;
  line-height: 1.9;
  color: var(--color-muted);
  letter-spacing: .04em;
}

/* Environmental — left-aligned */
.env-sec {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

section.env-sec img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.env-ov {
  position: absolute;
  inset: 0;
  background: rgba(10, 22, 40, .72);
}

.env-content {
  position: relative;
  z-index: 1;
  padding: 5rem 0;
  max-width: 800px;
}

.env-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .5em;
  color: rgba(255, 255, 255, .5);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.env-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 500;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 2.5rem;
}

.env-stats {
  display: flex;
  align-items: flex-start;
  gap: 3rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.env-stat {
  text-align: left;
}

.env-stat-n {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 500;
  color: #fff;
  line-height: 1;
  margin-bottom: .375rem;
}

.env-stat-u {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .25em;
  color: rgba(255, 255, 255, .5);
}

.env-stat-sep {
  width: 1px;
  height: 52px;
  background: rgba(255, 255, 255, .2);
}

.env-btn {
  display: inline-block;
  padding: .875rem 2.25rem;
  border: 1px solid rgba(255, 255, 255, .5);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .25em;
  color: #fff;
  transition: all .3s;
}

.env-btn:hover {
  background: #fff;
  color: var(--color-fg);
}

/* Selected — 選ばれる浄水器 */
.selected-sec {
  padding: 8rem 0;
  background: var(--color-bg);
}

.sel-hd {
  text-align: center;
  margin-bottom: 4rem;
}

.sel-hd .sec-lbl {
  margin-bottom: .75rem;
}

.sel-hd .sec-h2 {
  margin-bottom: 1.25rem;
}

.sel-subcopy {
  font-size: 13px;
  line-height: 1.85;
  color: var(--color-muted);
  letter-spacing: .04em;
  max-width: 480px;
  margin: 0 auto;
}

.sel-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-left: 1px solid var(--color-border);
  margin-bottom: 3.5rem;
}

@media(max-width:640px) {
  .sel-cards {
    grid-template-columns: 1fr;
    border-left: none;
    border-top: 1px solid var(--color-border);
  }
}

.sel-card {
  padding: 2.5rem;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
}

@media(max-width:640px) {
  .sel-card {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
}

.sel-quote {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(0, 0, 0, .75);
  letter-spacing: .04em;
}

.sel-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.sel-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-card);
  flex-shrink: 0;
}

.sel-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sel-name {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
  margin-bottom: .2rem;
}

.sel-title {
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: .05em;
}

.sel-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 5rem;
}

.sel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: 1rem 2rem;
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--color-muted);
  min-width: 240px;
  transition: all .3s;
}

.sel-btn:hover {
  border-color: var(--color-fg);
  color: var(--color-fg);
}

.asin-wrap {
  margin-top: 2rem;
}

.asin-lbl {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .4em;
  color: var(--color-muted);
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}

.asin-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid var(--color-border);
}

@media(max-width:640px) {
  .asin-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.asin-item {
  padding: 1.5rem 2rem;
  border-right: 1px solid var(--color-border);
}

.asin-name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: -.01em;
  margin-bottom: .4rem;
}

.asin-sub {
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: .06em;
  line-height: 1.6;
}

/* Aftercare */
.aftercare-sec {
  background: #EBF2F8;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.ac-grid {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: 0;
}

@media(max-width:768px) {
  .ac-grid {
    grid-template-columns: 1fr;
  }
}

.ac-img {
  overflow: hidden;
  min-height: 600px;
}

.ac-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .7;
}

.ac-content {
  padding: 4rem 4.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-left: 1px solid var(--color-border);
}

@media(max-width:768px) {
  .ac-content {
    padding: 3rem 2rem;
    border-left: none;
    border-top: 1px solid var(--color-border);
  }
}

.ac-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .45em;
  color: var(--color-muted);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.ac-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 2.8vw, 2.5rem);
  font-weight: 500;
  line-height: 1.35;
  margin-bottom: 1.25rem;
}

.ac-subcopy {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.85;
  letter-spacing: .04em;
  margin-bottom: 2rem;
  max-width: 420px;
}

.ac-items {
  display: flex;
  flex-direction: column;
  margin-bottom: 2rem;
}

.ac-item {
  padding: 1.125rem 0;
  border-bottom: 1px solid var(--color-border);
}

.ac-item:first-child {
  border-top: 1px solid var(--color-border);
}

.ac-item-h {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: .4rem;
  letter-spacing: .04em;
}

.ac-item-p {
  font-size: 12px;
  color: var(--color-muted);
  line-height: 1.75;
  letter-spacing: .04em;
}

.ac-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--color-muted);
  transition: color .3s;
}

.ac-link:hover {
  color: var(--color-fg);
}

/* CTA */
.cta-sec {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

section.cta-sec img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
}

.cta-ov {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10, 22, 40, .65) 0%, rgba(10, 22, 40, .5) 50%, rgba(10, 22, 40, .75) 100%);
}

.cta-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 3rem;
}

.cta-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .4em;
  color: rgba(255, 255, 255, .6);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.cta-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 500;
  color: #fff;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  max-width: 650px;
}

.cta-sub {
  font-size: 13px;
  color: rgba(255, 255, 255, .7);
  letter-spacing: .08em;
  margin-bottom: 3rem;
}

.cta-btn {
  display: inline-block;
  padding: 1rem 3rem;
  background: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--color-fg);
  transition: all .3s;
}

.cta-btn:hover {
  background: rgba(255, 255, 255, .85);
}

/* ========================================
   TOP refinements 2026-08
   Sustainability / Trusted By
   ======================================== */

/* Sustainability subcopy */
.env-subcopy {
  max-width: 620px;
  margin: -1rem 0 2rem;
  font-size: 13px;
  line-height: 1.9;
  letter-spacing: .05em;
  color: rgba(255, 255, 255, .72);
}

/* Usage cases replace testimonial cards */
.sel-cards.sel-cards--cases {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 3rem;
  border: 1px solid var(--color-border);
  background: var(--color-border);
}

.sel-cards--cases .sel-case-card {
  min-width: 0;
  padding: 0;
  border: 0;
  background: #fff;
  gap: 0;
  justify-content: flex-start;
}

.sel-case-img {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-card);
}

.sel-case-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, .08), transparent 45%);
  pointer-events: none;
}

.sel-case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .55s ease;
}

.sel-case-card:hover .sel-case-img img {
  transform: scale(1.025);
}

.sel-case-body {
  padding: 1.75rem 2rem 2rem;
}

.sel-case-kicker,
.sel-guide-kicker {
  margin: 0 0 .65rem;
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.4;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.sel-case-name {
  margin: 0 0 .75rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--color-fg);
}

.sel-case-text {
  margin: 0;
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: .04em;
  color: var(--color-muted);
}

/* Guide/column CTA banners */
.sel-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--color-border);
  background: var(--color-border);
}

.sel-guide-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 150px;
  padding: 2rem 2.25rem;
  background: #fff;
  color: var(--color-fg);
  text-decoration: none;
  transition: background-color .3s ease, color .3s ease;
}

.sel-guide-card:hover {
  background: var(--color-fg);
  color: #fff;
}

.sel-guide-card:hover .sel-guide-kicker,
.sel-guide-card:hover .sel-guide-text {
  color: rgba(255, 255, 255, .68);
}

.sel-guide-title {
  margin: 0 0 .65rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.4;
}

.sel-guide-text {
  max-width: 430px;
  margin: 0;
  font-size: 11px;
  line-height: 1.8;
  letter-spacing: .04em;
  color: var(--color-muted);
  transition: color .3s ease;
}

.sel-guide-arrow {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  transition: transform .3s ease;
}

.sel-guide-card:hover .sel-guide-arrow {
  transform: translateX(4px);
}

@media (max-width: 768px) {
  .env-subcopy {
    margin-top: -.5rem;
  }

  .sel-cards.sel-cards--cases,
  .sel-guide-grid {
    grid-template-columns: 1fr;
  }

  .sel-case-body {
    padding: 1.5rem;
  }

  .sel-guide-card {
    min-height: 0;
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .sel-case-img {
    aspect-ratio: 4 / 3;
  }

  .sel-guide-card {
    gap: 1rem;
  }
}

/* ========================================
   Selected / round 4-column layout
   ======================================== */

.sel-cards.sel-cards--cases.sel-cards--round {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-bottom: 3rem;
  border: 0;
  background: transparent;
}

.sel-cards--round .sel-case-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  padding: 0 2rem;
  background: transparent;
  text-align: center;
}

/* 口コミブロックのように、カード間だけ細い線で区切る */
.sel-cards--round .sel-case-card+.sel-case-card {
  border-left: 1px solid var(--color-border);
}

.sel-cards--round .sel-case-img--round {
  width: min(78%, 190px);
  aspect-ratio: 1 / 1;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-card);
}

.sel-cards--round .sel-case-img--round::after {
  border-radius: 50%;
  background: linear-gradient(to top, rgba(10, 22, 40, .06), transparent 50%);
}

.sel-cards--round .sel-case-img--round img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sel-cards--round .sel-case-body {
  width: 100%;
  padding: 0;
}

.sel-cards--round .sel-case-kicker {
  margin-bottom: .5rem;
}

.sel-cards--round .sel-case-name {
  margin-bottom: .75rem;
  font-size: clamp(1.05rem, 1.5vw, 1.35rem);
}

.sel-cards--round .sel-case-text {
  max-width: 240px;
  margin: 0 auto;
  font-size: 11px;
  line-height: 1.85;
}

@media (max-width: 980px) {
  .sel-cards.sel-cards--cases.sel-cards--round {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sel-cards--round .sel-case-card {
    padding: 2rem;
  }

  .sel-cards--round .sel-case-card+.sel-case-card {
    border-left: 0;
  }

  .sel-cards--round .sel-case-card:nth-child(even) {
    border-left: 1px solid var(--color-border);
  }

  .sel-cards--round .sel-case-card:nth-child(n + 3) {
    border-top: 1px solid var(--color-border);
  }
}

@media (max-width: 600px) {
  .sel-cards.sel-cards--cases.sel-cards--round {
    grid-template-columns: 1fr;
  }

  .sel-cards--round .sel-case-card {
    padding: 1.75rem 1rem;
  }

  .sel-cards--round .sel-case-card:nth-child(even) {
    border-left: 0;
  }

  .sel-cards--round .sel-case-card+.sel-case-card,
  .sel-cards--round .sel-case-card:nth-child(n + 3) {
    border-top: 1px solid var(--color-border);
  }

  .sel-cards--round .sel-case-img--round {
    width: min(62vw, 180px);
  }

  .sel-cards--round .sel-case-text {
    max-width: 320px;
  }
}


/* Sustainability cost comparison / source: granddukes.com/life.html */
.env-stat-n span {
  margin-left: .25em;
  font-size: .36em;
  font-family: var(--font-mono);
  font-weight: 400;
  letter-spacing: .04em;
}

.env-stat-u {
  line-height: 1.7;
  letter-spacing: .12em;
}

.env-notes {
  margin: -1rem 0 2rem;
  font-size: 10px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: rgba(255, 255, 255, .55);
}

@media (max-width: 768px) {
  .env-stats {
    gap: 1.5rem;
  }

  .env-stat-sep {
    display: none;
  }

  .env-stat {
    width: 100%;
  }

  .env-stat-n {
    font-size: 2rem;
  }

  .env-notes {
    margin-top: -.5rem;
  }
}
/* Structured Matrix RS — responsive columns */
@media (max-width: 768px) {
  .tech-cols {
    grid-template-columns: 1fr;
    border-left: 0;
    border-top: 1px solid rgba(10, 22, 40, .12);
  }

  .tech-col {
    padding: 1.75rem 0;
  }

  .tech-col + .tech-col {
    border-left: 0;
    border-top: 1px solid rgba(10, 22, 40, .12);
  }

  .tech-col-num {
    margin-bottom: .75rem;
  }

  .tech-col-h {
    font-size: 1.125rem;
    margin-bottom: .625rem;
  }

  .tech-col-h br {
    display: none;
  }

  .tech-col-p {
    font-size: 13px;
    line-height: 1.9;
  }
}