:root {
  --ink: #1a1a1a;
  --paper: #ffffff;
  --gray-bg: #f5f5f4;
  --gray-line: #ddd;
  --accent: #1a1a1a;
  --max-width: 680px;
}
* { box-sizing: border-box; }
video {
  display: block;
  width: 100%;
  height: auto;
  margin-left: auto;
  margin-right: auto;
}
img {
  margin-left: auto;
  margin-right: auto;
}
body {
  margin: 0;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  padding-bottom: 64px;
}
main {
  max-width: var(--max-width);
  margin: 0 auto;
}
.full-bleed {
  display: block;
  width: 100%;
  height: auto;
}
.story-carousel {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #0f0f0f;
}
.story-carousel-viewport { overflow: hidden; }
.story-carousel-track {
  display: flex;
  transition: transform 480ms ease;
  will-change: transform;
}
.story-slide {
  flex: 0 0 100%;
  min-width: 0;
  background: #0f0f0f;
}
.story-slide[hidden] { display: none; }
.story-slide img,
.story-slide video {
  display: block;
  width: 100%;
  height: auto;
}
.story-youtube-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
}
.story-youtube-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.story-carousel-button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 52px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.48);
  color: #fff;
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}
.story-carousel-button--prev { left: 8px; }
.story-carousel-button--next { right: 8px; }
.story-carousel-dots {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  gap: 8px;
  z-index: 2;
}
.story-carousel-dot {
  width: 9px;
  height: 9px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.3);
  cursor: pointer;
}
.story-carousel-dot[aria-current="true"] { background: #fff; }
@media (prefers-reduced-motion: reduce) {
  .story-carousel-track { transition: none; }
}
.draft-banner {
  position: sticky;
  top: 0;
  z-index: 110;
  background: #111;
  color: #fff;
  text-align: center;
  font-size: 12px;
  padding: 8px;
  letter-spacing: 0.02em;
}
.draft-banner-label {
  display: block;
  margin-bottom: 6px;
}
.fv { position: relative; }
.fv-cta { padding: 20px; }
.fv-body {
  padding: 20px 20px 28px;
  text-align: left;
}
.fv-sub {
  font-size: 12px;
  letter-spacing: 0.15em;
  color: #666;
  margin: 0 0 8px;
}
.fv-copy {
  font-size: 22px;
  margin: 0 0 6px;
  line-height: 1.5;
}
.fv-copy-sub {
  font-size: 15px;
  color: #444;
  margin: 0 0 16px;
}
.price {
  font-size: 24px;
  font-weight: bold;
  margin: 0 0 8px;
}
.price-tax,
.price-label {
  font-size: 13px;
  font-weight: normal;
  color: #666;
}
.price-tax { margin-left: 4px; }
.price-label { margin-right: 4px; }
.price-regular {
  font-size: 13px;
  color: #666;
  margin: 16px 0 4px;
}
.price-note {
  font-size: 13px;
  color: #444;
  margin: 0 0 20px;
}
/* CTAブロック内のカラー画像＋カラー表記 */
.cta-color-hero {
  margin-top: 20px;
  text-align: center;
}
.color-caption {
  font-size: 12px;
  color: #666;
  text-align: center;
  letter-spacing: 0.04em;
  margin: 8px 0 0;
}
.text-link {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.text-link:hover { opacity: 0.7; }
.cta-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
  padding: 16px 24px;
  min-height: 44px;
  background: var(--ink);
  color: var(--paper);
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  line-height: 1.4;
}
.cta-button:visited,
.cta-button:hover,
.cta-button:active,
.cta-button:focus {
  color: var(--paper);
  text-decoration: none;
}
.cta-button:hover { opacity: 0.85; }
.block {
  padding: 40px 20px;
  text-align: left;
  border-top: 1px solid var(--gray-line);
}
.block--flush {
  padding: 0;
  border-top: none;
}
.block-title {
  font-size: 19px;
  margin: 0 0 12px;
  line-height: 1.6;
}
.block-lead {
  font-size: 14px;
  color: #444;
  margin: 0 0 20px;
}
.asset-note {
  font-size: 12px;
  color: #b00020;
  background: #fff2f2;
  padding: 8px 12px;
  margin: 0;
  text-align: left;
}
body.teaser { padding-bottom: 0; }
.teaser-badge {
  display: block;
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--ink);
  margin: 24px 0;
  position: relative;
}
.teaser-badge::before,
.teaser-badge::after {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--ink);
  vertical-align: middle;
  margin: 0 12px;
}
.line-cta {
  text-align: center;
  padding: 8px 0 4px;
}
.line-cta-note {
  font-size: 13px;
  color: #444;
  margin: 0 0 14px;
  line-height: 1.8;
}
.line-cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 340px;
  padding: 16px 24px;
  min-height: 44px;
  background: #06C755;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: bold;
  line-height: 1.4;
}
.line-cta-button:hover { opacity: 0.85; }
.line-cta--compact { padding: 0; }
.line-cta-caution {
  font-size: 12px;
  color: #666;
  margin: 12px 0 0;
  line-height: 1.7;
}
.media-placeholder {
  width: 100%;
  aspect-ratio: 3 / 2;
  border: 1px dashed var(--gray-line);
  border-radius: 6px;
  background: var(--gray-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
  margin: 12px 0;
}
.media-placeholder--gif {
  border-color: #b9c4d4;
  background: #eef2f7;
}
.media-placeholder-label {
  font-size: 12px;
  color: #8a94a3;
  line-height: 1.5;
}
.feature-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-line);
}
.feature-item:last-child { border-bottom: none; }
.feature-item .block-subtitle { margin-top: 16px; }
.feature-media,
.scene-grid img,
.scene-grid video,
.storage-demo-grid img,
.storage-demo-grid video {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.scene-grid,
.storage-demo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 20px;
}
.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 20px;
}
.compare-grid img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.compare-head {
  font-size: 13px;
  font-weight: bold;
  letter-spacing: 0.04em;
  margin: 0;
}
.material-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--gray-line);
}
.material-item:last-child { border-bottom: none; }
.material-img,
video.material-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  margin-bottom: 12px;
}
.material-item .block-subtitle { margin-top: 0; }
.info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 480px;
  text-align: left;
}
.info-list li {
  font-size: 14px;
  color: #444;
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-line);
}
.info-list li:last-child { border-bottom: none; }
.info-list strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
  margin-bottom: 4px;
}
.info-list--spec li {
  border-bottom: none;
  padding: 4px 0;
}
.storage-list {
  text-align: left;
  margin: 0;
}
.storage-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-line);
}
.storage-img,
video.storage-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  margin-bottom: 12px;
}
.slideshow { margin-bottom: 12px; }
.slideshow-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 4px;
  overflow: hidden;
  background: var(--gray-bg);
}
.slideshow-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.slideshow-slide.is-current { opacity: 1; }
.slideshow-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  padding: 0 0 3px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.16);
  z-index: 2;
}
.slideshow-arrow--prev { left: 8px; }
.slideshow-arrow--next { right: 8px; }
.slideshow-arrow:hover { background: #fff; }
.slideshow-dots {
  display: flex;
  justify-content: center;
  gap: 2px;
  margin-top: 6px;
}
.slideshow-dot {
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.slideshow-dot::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ccc;
  transition: background 0.2s ease;
}
.slideshow-dot[aria-current="true"]::before { background: var(--ink); }
.storage-item:first-child { padding-top: 0; }
.storage-item:last-child { border-bottom: none; padding-bottom: 0; }
.storage-name {
  font-size: 15px;
  font-weight: bold;
  margin: 0;
}
.storage-dim {
  font-size: 13px;
  color: #666;
  margin: 4px 0 0;
  letter-spacing: 0.02em;
}
.storage-desc {
  font-size: 14px;
  color: #444;
  margin: 6px 0 0;
}
.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
@media (min-width: 480px) {
  .detail-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.detail-grid figure,
.color-grid figure { margin: 0; }
.detail-grid img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}
.detail-grid figcaption {
  font-size: 11px;
  color: #666;
  margin-top: 6px;
}
.color-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.color-card img,
.color-card video {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.color-card-placeholder {
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 6px;
  background: var(--gray-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 13px;
  text-align: center;
  line-height: 1.5;
}
.color-card-placeholder span { display: block; width: 100%; }
.block-subtitle {
  font-size: 16px;
  margin: 32px 0 16px;
}
.section-lead {
  font-size: 14px;
  color: #444;
  text-align: left;
  padding: 20px 20px 0;
  margin: 0;
}
.block--concept .block-lead {
  text-align: left;
  max-width: 480px;
  margin: 0 0 16px;
}
.block--faq { text-align: left; }
.faq-item {
  border-bottom: 1px solid var(--gray-line);
  padding: 14px 4px;
}
.faq-item summary {
  cursor: pointer;
  font-size: 15px;
  font-weight: bold;
  list-style: none;
  position: relative;
  padding-right: 24px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-weight: normal;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p {
  font-size: 14px;
  color: #444;
  margin: 10px 0 0;
}
.color-card figcaption {
  margin-top: 6px;
  font-size: 13px;
}
.review {
  margin: 0;
  padding: 20px 0;
  border-bottom: 1px solid var(--gray-line);
}
.review:last-of-type { border-bottom: none; }
.review-title {
  font-size: 15px;
  font-weight: bold;
  margin: 0 0 10px;
  line-height: 1.6;
}
.review-body { margin: 0; }
.review-body p {
  font-size: 14px;
  color: #444;
  line-height: 1.9;
  margin: 0 0 10px;
}
.review-body p:last-child { margin-bottom: 0; }
.review-meta {
  font-size: 12px;
  color: #666;
  margin-top: 12px;
}
.review-stars {
  color: var(--ink);
  letter-spacing: 0.1em;
  margin-right: 6px;
}
.review-note {
  font-size: 12px;
  color: #888;
  line-height: 1.8;
  margin: 20px 0 0;
}
.review-more > summary {
  list-style: none;
  cursor: pointer;
  display: block;
  max-width: 320px;
  margin: 20px auto 0;
  padding: 13px 20px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  text-align: center;
  font-size: 14px;
  font-weight: bold;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.review-more > summary::-webkit-details-marker { display: none; }
.review-more > summary:hover { opacity: 0.7; }
.review-more-close { display: none; }
.review-more[open] .review-more-open { display: none; }
.review-more[open] .review-more-close { display: inline; }
.review-more[open] > summary { margin-bottom: 4px; }
.cta-block { padding-bottom: 60px; }
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--paper);
  border-top: 1px solid var(--gray-line);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 100;
}
.cta-button--sticky {
  padding: 10px 20px;
  width: auto;
  max-width: 220px;
}
@media (min-width: 480px) {
  .fv-copy { font-size: 26px; }
}