:root {
  --color-bg:        #ffffff;
  --color-bg-soft:   #f7f6f3;
  --color-line:      #e5e3de;
  --color-ink:       #111111;
  --color-ink-sub:   #3a3a3a;
  --color-muted:     #8a8a8a;
  --color-accent:    #111111;
  --ff-sans-jp: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --ff-serif-jp: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --ff-en: "Jost", "Helvetica Neue", Arial, sans-serif;
  --content-max: 1120px;
  --gutter: clamp(20px, 4vw, 48px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-bg);
  font-family: var(--ff-sans-jp);
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: 0.04em;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.en {
  font-family: var(--ff-en);
  font-weight: 300;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}
.section-eyebrow {
  font-family: var(--ff-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--color-muted);
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 600;
  line-height: 1.6;
  margin: 12px 0 40px;
  letter-spacing: 0.06em;
}
.section-lead {
  font-size: 15px;
  color: var(--color-ink-sub);
  line-height: 2.1;
  max-width: 640px;
}

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
section { padding: clamp(80px, 12vw, 160px) 0; }
.divider {
  height: 1px;
  background: var(--color-line);
  width: 100%;
  margin: 0;
}

.hero {
  min-height: calc(100vh - var(--g-header-h, 0px));    
  min-height: calc(100svh - var(--g-header-h, 0px));
  display: grid;
  grid-template-rows: 1fr auto;
  align-items: center;
  justify-items: center;
  padding: 64px var(--gutter) 36px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  left: 50%; transform: translateX(-50%);
  width: min(86%, 980px);
  height: 1px;
  background: var(--color-line);
  top: 48px;
}

.hero-inner {
  text-align: center;
  max-width: 880px;
  align-self: center;
}
.hero-logo {
  font-family: var(--ff-en);
  font-weight: 500;
  font-size: clamp(48px, 10vw, 128px);
  letter-spacing: 0.22em;
  line-height: 1;
  margin: 0 0 18px;
}
.hero-kanji {
  font-family: var(--ff-serif-jp);
  font-weight: 600;
  font-size: clamp(20px, 2.6vw, 28px);
  letter-spacing: 0.6em;
  color: var(--color-ink);
  margin-bottom: 40px;
  display: inline-block;
}
.hero-kanji::before, .hero-kanji::after {
  content: "—";
  color: var(--color-muted);
  margin: 0 14px;
  font-weight: 300;
  letter-spacing: 0;
}
.hero-message {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: 0.14em;
  margin: 0 0 24px;
}
.hero-sub {
  color: var(--color-ink-sub);
  font-size: 14.5px;
  line-height: 2.1;
  max-width: 560px;
  margin: 0 auto;
}
.hero-scroll {
  font-family: var(--ff-en);
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--color-muted);
  text-align: center;
  align-self: end;
  padding-top: 60px;
}
.hero-scroll::after {
  content: "";
  display: block;
  width: 1px; height: 32px;
  background: var(--color-muted);
  margin: 10px auto 0;
  animation: scrollLine 2.4s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@media (max-height: 660px) {
  .hero { padding-top: 28px; padding-bottom: 16px; }
  .hero::before { top: 14px; }
  .hero-scroll { padding-top: 16px; }
}

.about .grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
@media (max-width: 820px) {
  .about .grid { grid-template-columns: 1fr; }
}

.about .grid { align-items: stretch; }
.about-side { display: flex; flex-direction: column; justify-content: space-between; gap: 32px; }

.about-side .about-figure { aspect-ratio: 16 / 9; }
@media (max-width: 820px) { .about-side .about-figure { aspect-ratio: 3 / 2; } }
.about p { font-size: 15.5px; line-height: 2.2; color: var(--color-ink-sub); }
.about .quote {
  font-family: var(--ff-serif-jp);
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 2;
  letter-spacing: 0.12em;
  color: var(--color-ink);
  border-left: 1px solid var(--color-ink);
  padding: 4px 0 4px 28px;
  margin: 0;
}

.issues { background: var(--color-bg-soft); }
.issues .list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
  margin-top: 24px;
  padding: 0;   
}
.issues .list li {
  list-style: none;
  padding: 34px 28px;
  font-size: 15px;
  line-height: 1.9;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: #fff;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.issues .list li .num {
  font-family: var(--ff-en);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--color-muted);
  padding-top: 4px;
  min-width: 28px;
}
.issues .note {
  margin-top: 36px;
  font-family: var(--ff-serif-jp);
  font-size: 17px;
  letter-spacing: 0.1em;
  color: var(--color-ink);
}
@media (max-width: 860px) { .issues .list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .issues .list { grid-template-columns: 1fr; } }

.value .axes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  margin-top: 32px;
}
.value .axes > div {
  background: #fff;
  padding: 44px 32px;
}
.value .axes .en {
  font-size: 11px;
  color: var(--color-muted);
  margin-bottom: 10px;
}
.value .axes h3 {
  font-size: 22px;
  margin: 0 0 14px;
  letter-spacing: 0.12em;
}
.value .axes p {
  font-size: 13.5px;
  color: var(--color-ink-sub);
  line-height: 2;
  margin: 0;
}
@media (max-width: 860px) { .value .axes { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .value .axes { grid-template-columns: 1fr; } }

.value-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.value-head .section-title { margin-bottom: 24px; }
.value-head .section-lead { margin: 0; }
.value-head + .axes { margin-top: clamp(40px, 5vw, 56px); }
@media (max-width: 860px) { .value-head { grid-template-columns: 1fr; } }

.process { background: var(--color-bg-soft); }
.process .steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 40px);
  margin-top: 40px;
}
.process .step {
  background: #fff;
  padding: 44px 32px;
  border: 1px solid var(--color-line);
  position: relative;
}
.process .step .no {
  font-family: var(--ff-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--color-muted);
}
.process .step h3 {
  font-size: 22px;
  letter-spacing: 0.14em;
  margin: 10px 0 24px;
}
.process .step .icon {
  width: 86px; height: 86px;
  object-fit: contain;
  margin-bottom: 20px;
  filter: grayscale(100%) contrast(0.9);
  opacity: .9;
}
.process .step p {
  font-size: 13.5px;
  color: var(--color-ink-sub);
  margin: 0;
  line-height: 2;
}
.process .arrow {
  text-align: center;
  margin-top: 40px;
  font-family: var(--ff-en);
  font-size: 12px;
  letter-spacing: 0.4em;
  color: var(--color-muted);
}
@media (max-width: 860px) { .process .steps { grid-template-columns: 1fr; } }

.process .steps--photo .step { padding: 0; display: flex; flex-direction: column; }
.process .steps--photo .step .body { padding: 28px 28px 36px; }
.process .steps--photo .step h3 { margin: 10px 0 14px; }

.results .points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  margin-top: 32px;
}
.results .points > div {
  background: #fff;
  padding: 40px 28px;
  text-align: center;
}
.results .points .en {
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--color-muted);
  margin-bottom: 14px;
}
.results .points .number {
  font-family: var(--ff-en);
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.1;
  color: var(--color-ink);
}
.results .points p {
  font-size: 13px;
  color: var(--color-ink-sub);
  margin: 12px 0 0;
}
.results .cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 60px;
}
.results .case {
  border: 1px solid var(--color-line);
  background: #fff;
}
.results .case .thumb {
  aspect-ratio: 4 / 3;
  background: #ededea;
  position: relative;
  overflow: hidden;
}
.results .case .thumb svg { width: 100%; height: 100%; display: block; }
.results .case .body { padding: 22px 22px 26px; }
.results .case .tag {
  font-family: var(--ff-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--color-muted);
}
.results .case h4 {
  margin: 8px 0 6px;
  font-size: 15px;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.results .case .meta {
  font-size: 12px;
  color: var(--color-muted);
  margin: 0;
}
.results .disclaimer {
  margin-top: 36px;
  font-size: 12px;
  color: var(--color-muted);
  line-height: 2;
}
@media (max-width: 860px) {
  .results .points { grid-template-columns: 1fr; }
  .results .cases { grid-template-columns: 1fr; }
}

.company { background: var(--color-ink); color: #fff; }
.company .section-eyebrow { color: rgba(255,255,255,.5); }
.company .section-title { color: #fff; }
.company .table {
  margin-top: 24px;
  border-top: 1px solid rgba(255,255,255,.16);
}
.company .table > div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255,255,255,.16);
  font-size: 14px;
  letter-spacing: 0.06em;
}
.company .table dt {
  font-family: var(--ff-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,.5);
}
.company .table dd { margin: 0; color: rgba(255,255,255,.92); }
.company .strong {
  margin-top: 48px;
  font-size: 14px;
  color: rgba(255,255,255,.76);
  line-height: 2.2;
  max-width: 780px;
}
@media (max-width: 640px) {
  .company .table > div { grid-template-columns: 1fr; gap: 6px; }
}

.cta {
  text-align: center;
  padding: clamp(100px, 14vw, 180px) var(--gutter);
}
.cta h2 {
  font-family: var(--ff-serif-jp);
  font-size: clamp(22px, 3.2vw, 34px);
  letter-spacing: 0.16em;
  margin: 0 0 20px;
  line-height: 2;
}
.cta p {
  color: var(--color-ink-sub);
  font-size: 14.5px;
  line-height: 2.1;
  max-width: 520px;
  margin: 0 auto 48px;
}
.btn {
  display: inline-block;
  padding: 20px 52px;
  border: 1px solid var(--color-ink);
  font-family: var(--ff-en);
  font-size: 12px;
  letter-spacing: 0.4em;
  transition: background .2s, color .2s;
}
.btn:hover { background: var(--color-ink); color: #fff; }

.case-hero {
  padding: 160px var(--gutter) 80px;
  border-bottom: 1px solid var(--color-line);
}
.case-hero .inner {
  max-width: var(--content-max);
  margin: 0 auto;
}
.case-breadcrumb {
  font-family: var(--ff-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--color-muted);
  margin-bottom: 28px;
}
.case-breadcrumb a:hover { color: var(--color-ink); }
.case-breadcrumb span { margin: 0 10px; }
.case-eyebrow {
  font-family: var(--ff-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--color-muted);
  margin-bottom: 16px;
}
.case-title {
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.5;
  margin: 0 0 30px;
}
.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--color-line);
}
.case-meta > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1 1 220px;
  padding: 22px 28px 22px 0;
  border-bottom: 1px solid var(--color-line);
}
.case-meta dt {
  font-family: var(--ff-en);
  font-size: 10.5px;
  letter-spacing: 0.3em;
  color: var(--color-muted);
}
.case-meta dd {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.04em;
}

.case-mainvisual {
  aspect-ratio: 16 / 7;
  background: #e9e9e6;
  overflow: hidden;
}
.case-mainvisual svg { width: 100%; height: 100%; display: block; }

.case-section {
  padding: clamp(70px, 9vw, 120px) 0;
  border-bottom: 1px solid var(--color-line);
}
.case-section .inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.case-section .section-eyebrow {
  font-family: var(--ff-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--color-muted);
  display: block;
  margin-bottom: 12px;
}
.case-section h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.6;
  margin: 0 0 36px;
}
.case-section p {
  font-size: 15px;
  color: var(--color-ink-sub);
  line-height: 2.2;
  margin: 0 0 1.2em;
}
.case-section ul.flat {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--color-line);
}
.case-section ul.flat li {
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 14.5px;
  color: var(--color-ink);
  display: flex;
  align-items: baseline;
  gap: 18px;
  letter-spacing: 0.04em;
}
.case-section ul.flat li::before {
  content: "—";
  color: var(--color-muted);
}
.case-section .approach p { font-size: 15px; }
.case-section .approach .lede {
  font-family: var(--ff-serif-jp);
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: 0.1em;
  line-height: 2;
  color: var(--color-ink);
  margin-bottom: 32px;
}

.case-ba {
  padding: clamp(70px, 9vw, 120px) 0;
  background: var(--color-bg-soft);
}
.case-ba .inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.case-ba h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 600;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
}
.case-ba .ba-lead {
  font-size: 14px;
  color: var(--color-ink-sub);
  margin-bottom: 40px;
  max-width: 600px;
}
.ba-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  margin-bottom: 28px;
}
.ba-pair .ba {
  background: #fff;
  position: relative;
  overflow: hidden;
}
.ba-pair .ba .img {
  aspect-ratio: 4 / 3;
  background: #ddd;
}
.ba-pair .ba .img svg { width: 100%; height: 100%; display: block; }
.ba-pair .ba .label {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(17,17,17,.85);
  color: #fff;
  font-family: var(--ff-en);
  font-size: 10.5px;
  letter-spacing: 0.3em;
  padding: 5px 11px 4px;
}
.ba-pair .ba.is-after .label { background: var(--color-ink); }
.ba-pair .ba .caption {
  font-size: 12px;
  color: var(--color-ink-sub);
  padding: 12px 16px 16px;
  background: #fff;
  letter-spacing: 0.04em;
}
@media (max-width: 720px) {
  .ba-pair { grid-template-columns: 1fr; }
}

.case-back {
  text-align: center;
  padding: 60px var(--gutter);
}
.case-back a {
  font-family: var(--ff-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
  padding-bottom: 4px;
}
.case-back a:hover { color: var(--color-muted); border-color: var(--color-muted); }

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .9s ease, transform .9s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.hero-logo-img { width: min(70vw, 520px); height: auto; margin: 0 auto 44px; display: block; }
.process .cycle-note { text-align: center; margin: 18px 0 0; font-size: 13px; color: var(--color-muted); letter-spacing: 0.06em; }

.difference { background: var(--color-bg); }
.diff-list { list-style: none; margin: 32px 0 0; padding: 0; border-top: 1px solid var(--color-line); }
.diff-list li { display: flex; gap: 28px; padding: 28px 0; border-bottom: 1px solid var(--color-line); align-items: flex-start; }
.diff-list .num { font-family: var(--ff-en); font-size: 11px; letter-spacing: 0.3em; color: var(--color-muted); padding-top: 6px; min-width: 36px; }
.diff-list h3 { margin: 0 0 6px; font-size: 17px; font-weight: 600; letter-spacing: 0.08em; }
.diff-list p { margin: 0; font-size: 13.5px; color: var(--color-ink-sub); line-height: 2; }

.results .case .thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.results .more-link { margin: 32px 0 0; font-size: 13px; letter-spacing: 0.1em; }
.results .more-link a { border-bottom: 1px solid var(--color-ink); padding-bottom: 2px; }

.plan { background: var(--color-bg-soft); }
.plan .plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--color-line); border: 1px solid var(--color-line); margin-top: 32px; }
.plan .plans > div { background: #fff; padding: 44px 32px; }
.plan .plans .en { font-size: 11px; color: var(--color-muted); margin-bottom: 10px; }
.plan .plans h3 { font-size: 20px; margin: 0 0 18px; letter-spacing: 0.12em; }
.plan .plans .price { font-family: var(--ff-en); font-size: 30px; font-weight: 400; letter-spacing: 0.04em; margin-bottom: 14px; }
.plan .plans .price small { font-size: 14px; margin-left: 4px; }
.plan .plans p { font-size: 13.5px; color: var(--color-ink-sub); line-height: 2; margin: 0; }
.plan .disclaimer { margin-top: 24px; font-size: 12px; color: var(--color-muted); line-height: 2; }
@media (max-width: 860px) { .plan .plans { grid-template-columns: 1fr; } }

.company .company-link { margin-top: 36px; font-size: 12px; letter-spacing: 0.2em; }
.company .company-link a { color: rgba(255,255,255,.7); border-bottom: 1px solid rgba(255,255,255,.4); padding-bottom: 2px; }
.company .company-link a:hover { color: #fff; }

@media print, (prefers-reduced-motion: reduce) { .reveal { opacity: 1 !important; transform: none !important; transition: none; } }