:root {
  color-scheme: light;
  --teal: #1e8e8b;
  --deep: #0f5e5b;
  --ink: #1c2527;
  --copy: #3a4548;
  --muted: #5a6568;
  --line: #dce3e3;
  --pale: #f4f7f7;
  --mint: #eaf4f3;
}
* {
  box-sizing: border-box;
}
html {
  --header-h: 88px;
  scroll-behavior: smooth;
  /* 固定ヘッダー分だけページ内リンク・フォーカス移動の着地位置を下げる */
  scroll-padding-top: var(--header-h);
}
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font: 15px/1.95 'Noto Sans JP',sans-serif;
  letter-spacing: .3px;
}
.wrap {
  width: 1200px;
  max-width: calc(100% - 48px);
  margin-inline: auto;
}
a {
  color: inherit;
  text-decoration: none;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
/* ヘッダー固定（全ページ共通）。#menu は header 内の absolute なので、固定ヘッダー直下から開く */
body > header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: #fff;
}
.header {
  height: 88px;
  padding: 0 56px;
  border-bottom: 1px solid #e3e8e8;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header img,
footer img {
  width: 145px;
  height: 40px;
  object-fit: contain;
}
.desktop-nav {
  display: flex;
  gap: 40px;
  align-items: center;
  font: 500 14px/1 'Zen Kaku Gothic New','Noto Sans JP',sans-serif;
  letter-spacing: 1.12px;
}
.desktop-nav > a:not(.btn) {
  height: 30px;
  display: flex;
  align-items: flex-start;
  padding-top: 2px;
}
.active {
  color: #146c69;
  position: relative;
}
.active:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 16px;
  height: 2px;
  transform: translateX(-50%);
  background: var(--teal);
}
.btn {
  display: inline-flex;
  gap: 16px;
  align-items: center;
  justify-content: center;
  background: var(--deep);
  border-radius: 2px;
  color: #fff;
  padding: 18px 32px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .64px;
  white-space: nowrap;
}
.header-cta {
  padding: 14px 24px;
  font-size: 14px;
  letter-spacing: .56px;
}
.spbtn,
.hamb,
#menu {
  display: none;
}
.hero {
  position: relative;
  overflow: hidden;
}
.hero-stage {
  position: relative;
  --diagram-top: 235px;
}
.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-top: 56px;
  padding-bottom: 32px;
}
.hero-text {
  width: 720px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.eyebrow {
  margin: 0;
  color: #146c69;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: .64px;
}
.hero h1,
h2,
h3 {
  font-family: 'Zen Kaku Gothic New','Noto Sans JP',sans-serif;
}
.hero h1 {
  margin: 0;
  font-size: clamp(40px,5.8vw,84px);
  line-height: 1.28;
  letter-spacing: 1.68px;
}
.hero h1 span {
  display: block;
  white-space: nowrap;
}
.copy {
  width: 420px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.copy .btn {
  align-self: flex-start;
  min-width: 262px;
}
.copy p,
.intro {
  margin: 0;
  color: var(--copy);
  font-size: 15px;
  line-height: 2;
}
.hero-spacer {
  min-height: clamp(160px,17.36vw,250px);
}
.hero-stats {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  padding-bottom: 12px;
}
.stats {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  width: 100%;
  border-top: 1px solid var(--ink);
}
.stats > div {
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stats > div + div {
  border-left: 1px solid var(--line);
  padding-left: 32px;
}
.stats b {
  color: var(--teal);
  font: 500 44px/1.1 'Zen Kaku Gothic New',sans-serif;
  letter-spacing: 0;
  white-space: nowrap;
}
.stats small {
  color: var(--ink);
  font: 700 18px/2 'Zen Kaku Gothic New',sans-serif;
}
.stats strong {
  font-size: 15px;
  line-height: 1.6;
  white-space: nowrap;
}
@media (min-width:768px) and (max-width:1100px) {
  .stats > div { padding: 18px 14px; }
  .stats > div + div { padding-left: 18px; }
  .stats b { font-size: 34px; }
  .stats small { font-size: 15px; }
  .stats strong { font-size: 13px; }
}
.note {
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
}
.diagram {
  position: absolute;
  z-index: 0;
  inset: 0;
  pointer-events: none;
}
.diagram-static {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
/* PCは背景の図なので、キャッチより前に出ないよう全体を薄めに見せる（動きは assets/fv.js） */
.pc-diagram {
  opacity: .3;
}
.sp-diagram,
.sp-labels {
  display: none;
}
.pc-labels {
  display: none;
}
.diagram-labels span {
  position: absolute;
  font: 500 12px/1 'Noto Sans JP',sans-serif;
  white-space: nowrap;
}
.diagram-labels .phase {
  top: 3px;
}
.diagram-labels .one {
  left: 22.6417%;
  color: var(--muted);
}
.diagram-labels .two {
  left: 44.25%;
  color: var(--muted);
}
.diagram-labels .three {
  left: 65.007%;
  color: #146c69;
}
.diagram-labels .method {
  color: var(--muted);
  width: 202px;
  left: 0;
  text-align: right;
}
.diagram-labels .m1 {
  top: 33px;
}
.diagram-labels .m2 {
  top: 76px;
}
/* スマホの図：残る1本（中央の線＝手紙）以外のチャネル名は薄い灰色（完成形。動きの途中は fv.js が色を変える） */
.sp-labels .method:not(.m3) {
  color: #b3bcbe;
}
.diagram-labels .m3 {
  top: 119px;
}
.diagram-labels .m4 {
  top: 162px;
}
.diagram-labels .m5 {
  top: 205px;
}
.hero-top,
.hero-stats {
  position: relative;
  z-index: 1;
}
.hero-top:before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -48px -96px -40px -72px;
  background: radial-gradient(ellipse at 18% 34%,rgba(255,255,255,.88) 0,rgba(255,255,255,.58) 38%,rgba(255,255,255,0) 74%);
  pointer-events: none;
}
.section {
  padding: 112px 0;
}
.pale {
  background: var(--pale);
}
h2 {
  margin: 0;
  font-size: 44px;
  line-height: 1.45;
  letter-spacing: 1.32px;
}
h3 {
  margin: 0;
}
.issues {
  padding: 160px 0 140px;
}
.issuegrid {
  display: grid;
  grid-template-columns: 500px 644px;
  gap: 56px;
  margin-top: 64px;
}
.featured {
  padding: 56px 44px;
  background: #fff;
  border-top: 4px solid var(--teal);
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
}
.featured h3 {
  font-size: 32px;
  line-height: 1.5;
}
.featured p {
  margin: 0;
  font-size: 16px;
  line-height: 2;
  color: var(--copy);
}
.list {
  border-top: 1px solid var(--ink);
}
.list article {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.list h3 {
  font: 700 16px/1.5 'Noto Sans JP',sans-serif;
}
.list p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.solution {
  margin-top: 112px;
  padding: 36px;
  background: #fff;
}
.solution h3 {
  font-size: 30px;
  line-height: 1.55;
  margin-bottom: 28px;
}
.solution > div {
  display: grid;
  grid-template-columns: repeat(3,1fr);
}
.solution p {
  margin: 0;
  padding: 0 32px;
  border-left: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
}
.solution p:first-child {
  border-left: 0;
  padding-left: 0;
}
.solution b {
  display: block;
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
}
.solution span {
  color: var(--muted);
}
.lead {
  margin: 20px 0 12px;
  color: #146c69;
  font: 700 20px/1.4 'Zen Kaku Gothic New',sans-serif;
  letter-spacing: .4px;
}
.service .intro {
  width: 100%;
  margin: 0;
}
.cards {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  margin-top: 48px;
}
.cards article {
  border: 1px solid var(--line);
  padding: 0 36px 32px;
}
.cards article + article {
  border-left: 0;
}
.cards article:before {
  display: block;
  content: "";
  height: 3px;
  background: #a9d6d4;
  margin-bottom: 28px;
}
.cards small {
  font-size: 13px;
  letter-spacing: 2.08px;
  color: #146c69;
}
.cards h3 {
  margin: 4px 0 16px;
  font: 700 20px/1.5 'Noto Sans JP',sans-serif;
}
.cards ul {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--copy);
  font-size: 14px;
  line-height: 2;
}
.cards li:before {
  content: none;
}
.card-dash {
  display: inline-block;
  width: 6px;
  height: 1px;
  margin-right: 10px;
  background: var(--teal);
  vertical-align: middle;
}
.strength {
  padding-top: 112px;
  padding-bottom: 112px;
}
.strengths {
  margin-top: 56px;
}
.strengths article {
  display: grid;
  grid-template-columns: 300px 540px 1fr;
  gap: 48px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.strengths article:last-child {
  border-bottom: 1px solid var(--line);
}
.strengths h3 {
  font-size: 20px;
  line-height: 1.5;
}
.strengths p {
  margin: 0;
  color: var(--copy);
  font-size: 14px;
  line-height: 1.8;
}
.measure {
  margin-top: 12px;
}
.measure b {
  font-size: 12px;
  color: var(--muted);
}
.measure span,
.case-meta span {
  display: inline-block;
  padding: 1px 8px;
  border: 1px solid #c9d1d2;
  margin: 4px 3px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}
.steps p {
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 58px 1fr;
  column-gap: 10px;
}
.steps p:last-child {
  border-bottom: 0;
}
.steps b {
  color: #146c69;
  font-size: 12px;
}
.steps strong {
  font-size: 14px;
}
.steps span {
  grid-column: 2;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}
.strengths aside {
  align-self: start;
  background: #fff;
  padding: 16px;
  font-size: 12px;
  line-height: 1.8;
}
.strengths aside > b {
  color: #146c69;
  font-size: 12px;
}
.strengths aside p {
  margin-top: 4px;
  color: var(--ink);
  font-size: 13px;
}
.strengths aside p:before {
  content: none;
}
.deliverable-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  background: var(--teal);
  vertical-align: middle;
}
.band {
  background: var(--mint);
}
.band .wrap {
  min-height: 151px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.band b {
  font-size: 18px;
  line-height: 1.5;
}
.cases {
  padding-top: 104px;
  padding-bottom: 104px;
}
.cases .intro {
  margin-top: 14px;
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 12px;
  margin-top: 28px;
}
.case {
  border: 0;
  border-top: 2px solid var(--teal);
  padding-top: 24px;
}
.case-heading {
  padding: 24px 20px 18px;
  min-height: 108px;
}
.case-heading small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}
.case-heading h3 {
  margin-top: 12px;
  font-size: 18px;
  line-height: 1.55;
}
.case-flow {
  padding: 0;
}
.case-flow section {
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.case-flow b {
  font-size: 12px;
  line-height: 1;
  letter-spacing: .96px;
}
.case-flow p {
  margin: 0;
  color: var(--copy);
  font-size: 14px;
  line-height: 1.8;
}
.problem {
  background: transparent;
}
.problem b {
  color: var(--muted);
}
.support b {
  color: #146c69;
}
.case-flow > i {
  font-style: normal;
  color: #9aa6a8;
  line-height: 22px;
  text-align: center;
}
.case-flow > i:nth-of-type(2) {
  color: var(--teal);
}
.case-flow .result {
  padding: 0 0 24px;
  border-left: 0;
  background: transparent;
}
.result b {
  color: #146c69;
}
.result b span {
  font-size: 13px;
}
.result strong {
  display: block;
  margin-top: 4px;
  color: #146c69;
  font: 700 30px/1.25 'Zen Kaku Gothic New',sans-serif;
}
.case-meta {
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 16px;
  font-size: 12px;
  color: var(--muted);
}
.case-meta p {
  margin: 8px 0 2px;
  line-height: 1.5;
}
.case-meta strong {
  font-weight: 500;
  color: var(--ink);
}
.faq {
  padding: 112px 0;
}
.faq .wrap {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 120px;
}
.faq-list details {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}
.faq-list details:last-child {
  border-bottom: 1px solid var(--line);
}
summary {
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}
.faq-icon {
  margin-left: auto;
  color: var(--teal);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
}
summary::-webkit-details-marker {
  display: none;
}
.faq-list p {
  margin: 10px 0 0;
  color: var(--copy);
  font-size: 14px;
  line-height: 1.8;
}
.final {
  color: #fff;
  background: #126d6a;
}
.final .wrap {
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.final h2 {
  font-size: 40px;
  line-height: 1.5;
  letter-spacing: .8px;
}
.final p {
  margin: 12px 0 0;
  font-size: 13px;
}
.final b {
  display: block;
  margin-bottom: 12px;
  font-size: 13px;
}
.final .btn {
  background: #fff;
  color: var(--deep);
  padding: 22px 40px;
  font-size: 17px;
}
.final .wrap > div:last-child {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}
.final .wrap > div:last-child > b {
  margin: 0;
  font-size: 18px;
}
footer {
  padding: 64px 0 16px;
}
.footer-main p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
}
footer .wrap {
  position: relative;
}
footer nav {
  display: flex;
  gap: 32px;
  font: 500 12px/1 'Zen Kaku Gothic New',sans-serif;
  letter-spacing: .48px;
}
.footer-links {
  position: absolute;
  right: 0;
  top: 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 20px;
}
.footer-cta {
  padding: 14px 24px;
  font-size: 14px;
}
footer small {
  display: block;
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}
.fixed {
  display: none;
}
.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease-out,transform .6s ease-out;
}
.js .reveal.in {
  opacity: 1;
  transform: none;
}
.js .reveal:nth-child(2) {
  transition-delay: 80ms;
}
.js .reveal:nth-child(3) {
  transition-delay: 160ms;
}
@media (prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto;
  }
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}
@media (min-width:768px) {
  .list h3 {
    font-size: 17px;
    line-height: 1.6;
  }
  .solution {
    padding: 72px;
  }
  .solution h3 {
    margin-bottom: 48px;
  }
  .solution p {
    padding: 0 32px;
    font-size: 15px;
    line-height: 1.9;
  }
  .solution b {
    font-size: 18px;
    margin-bottom: 0;
  }
  .service {
    padding: 128px 0;
  }
  .service h2,
  .strength h2,
  .cases h2,
  .faq h2 {
    font-size: 40px;
  }
  .service .lead {
    margin: 28px 0 0;
    font-size: 22px;
    line-height: 1.6;
  }
  .service .intro {
    width: 760px;
    margin-top: 16px;
    font-size: 16px;
  }
  .cards {
    margin-top: 56px;
  }
  .cards article {
    padding: 40px 40px 48px;
  }
  .cards article:before {
    margin-bottom: 28px;
  }
  .cards small {
    font-size: 14px;
    letter-spacing: 2.24px;
  }
  .cards h3 {
    margin: 8px 0 28px;
    font-size: 22px;
  }
  .cards ul {
    font-size: 15px;
    line-height: 1.7;
  }
  .cards li + li {
    margin-top: 12px;
  }
  .cards li:before {
    content: none;
  }
  .card-dash {
    display: inline-block;
  }
  .strength {
    padding: 128px 0;
  }
  .strengths article {
    grid-template-columns: 300px 540px 264px;
    gap: 48px;
    padding: 48px 0;
  }
  .strengths h3 {
    font-size: 22px;
  }
  .strengths p {
    font-size: 16px;
    line-height: 1.95;
  }
  .measure {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 14px;
    align-items: flex-start;
  }
  .measure b {
    font-size: 13px;
    line-height: normal;
  }
  .measure span {
    padding: 4px 10px;
    margin: 0;
    font-size: 12px;
    line-height: normal;
  }
  .steps p {
    padding: 10px 0;
    grid-template-columns: 60px 1fr;
    column-gap: 12px;
    row-gap: 2px;
  }
  .steps b {
    font-size: 13px;
  }
  .steps strong {
    font-size: 16px;
    line-height: 1.2;
  }
  .steps span {
    font-size: 13px;
    line-height: 1.7;
  }
  .strengths aside {
    padding: 20px;
    font-size: 13px;
    line-height: 1.8;
  }
  .strengths aside > b {
    font-size: 13px;
  }
  .strengths aside p {
    font-size: 16px;
    line-height: 1.45;
  }
  .strengths aside p:before {
    content: none;
  }
  .deliverable-dot {
    width: 8px;
    height: 8px;
    margin-right: 8px;
  }
  .deliverable-dot:not(:first-child) {
    display: none;
  }
  .cases {
    padding: 160px 0 140px;
  }
  .cases .lead {
    margin: 28px 0 0;
    font-size: 28px;
  }
  .cases .lead small {
    margin-left: 20px;
    color: var(--muted);
    font: 400 13px/1 'Noto Sans JP';
  }
  .cases .intro {
    margin-top: 16px;
    font-size: 16px;
  }
  .cases-grid {
    gap: 24px;
    margin-top: 48px;
  }
  .case-heading {
    padding: 28px 28px 22px;
    min-height: 0;
  }
  .case-heading small {
    font-size: 13px;
    line-height: normal;
  }
  .case-heading h3 {
    margin-top: 12px;
    font-size: 20px;
  }
  .case-flow {
    padding: 0;
  }
  .case-flow section {
    padding: 0;
  }
  .case-flow .problem {
    padding-top: 24px;
  }
  .case-flow .support {
    padding: 16px 0 24px;
  }
  .case-flow .result {
    padding: 0 0 24px;
  }
  .result b span {
    display: block;
  }
  .case-meta {
    padding: 18px 0 0;
  }
  .case-meta span {
    padding: 4px 12px;
    margin: 0 4px 0 0;
    font-size: 12px;
  }
  .faq {
    padding: 128px 0;
  }
  .faq .wrap {
    grid-template-columns: 280px 800px;
    gap: 120px;
  }
  .faq-list details {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 28px 0;
    border-color: #c9d3d3;
  }
  .faq-list details:nth-child(-n + 2),
  .faq-list details:last-child {
    padding: 22px 0;
  }
  .faq-list summary {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    font-size: 17px;
    line-height: 1.6;
  }
  .faq-list .faq-icon {
    display: none;
  }
  .faq-list p {
    display: flex;
    gap: 20px;
    margin: 0;
    font-size: 15px;
    line-height: 1.9;
  }
  .faq-label {
    flex: 0 0 20px;
    font: 700 18px/1 'Zen Kaku Gothic New', sans-serif;
  }
  .faq-question {
    color: var(--teal);
  }
  .faq-answer {
    color: var(--muted);
  }
  .faq-list details:nth-child(-n + 2) p {
    align-items: center;
    color: var(--ink);
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
  }
  footer {
    padding: 72px 0 40px;
  }
  .footer-main p {
    margin-top: 16px;
    font-size: 13px;
    line-height: 1.9;
  }
  footer nav {
    top: 18px;
    gap: 40px;
    font-size: 13px;
    letter-spacing: 1.04px;
  }
  footer small {
    margin-top: 48px;
    padding-top: 24px;
    font-size: 12px;
  }
  .footer-arrow {
    display: none;
  }
}

@media (min-width:768px) and (max-width:1200px) {
  .header {
    padding: 0 28px;
  }
  .desktop-nav {
    gap: clamp(14px,2vw,24px);
    font-size: 12px;
    letter-spacing: .72px;
  }
  .header-cta {
    padding: 12px 16px;
    font-size: 12px;
  }
  .hero-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
  }
  .hero-text,
  .copy {
    width: 100%;
  }
  .copy {
    max-width: 680px;
  }
  .hero-spacer {
    min-height: 180px;
  }
  .issues {
    padding: 112px 0;
  }
  .issuegrid {
    grid-template-columns: minmax(250px,.85fr) minmax(0,1.15fr);
    gap: 32px;
    margin-top: 48px;
  }
  .featured {
    padding: 40px 32px;
  }
  .solution {
    margin-top: 72px;
    padding: 48px;
  }
  .solution > div {
    grid-template-columns: 1fr;
  }
  .solution p,
  .solution p:first-child {
    padding: 20px 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .cards {
    grid-template-columns: repeat(2,minmax(0,1fr));
  }
  .cards article + article {
    border-left: 1px solid var(--line);
  }
  .cards article:nth-child(3) {
    grid-column: 1 / -1;
  }
  .strengths article {
    grid-template-columns: minmax(210px,.8fr) minmax(0,1.2fr);
    gap: 28px;
  }
  .strengths aside {
    grid-column: 1 / -1;
  }
  .cases-grid {
    grid-template-columns: repeat(2,minmax(0,1fr));
  }
  .cases-grid .case:nth-child(3) {
    grid-column: 1 / -1;
  }
  .faq .wrap {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-links {
    max-width: 62%;
  }
  footer nav {
    gap: 18px;
  }
}

@media (min-width:768px) and (max-width:1023px) {
  .header {
    padding: 0 24px;
  }
  .header img {
    width: 120px;
    height: 34px;
  }
  .desktop-nav {
    display: none;
  }
  .spbtn {
    display: block;
    margin-left: auto;
    margin-right: 18px;
    padding: 11px 14px;
    background: var(--deep);
    border-radius: 2px;
    color: #fff;
    font-size: 13px;
    line-height: 1;
  }
  .hamb {
    display: flex;
    width: 24px;
    padding: 4px 0;
    border: 0;
    background: transparent;
    flex-direction: column;
    gap: 5px;
  }
  .hamb i {
    width: 24px;
    height: 2px;
    background: var(--ink);
  }
  #menu:not([hidden]) {
    position: absolute;
    z-index: 10;
    top: 88px;
    left: 0;
    width: 100%;
    padding: 8px 24px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    display: grid;
  }
  #menu a {
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
  }
  .hero-stage {
    display: flex;
    flex-direction: column;
  }
  .diagram {
    position: relative;
    inset: auto;
    order: 2;
    align-self: center;
    width: 375px;
    aspect-ratio: 375 / 200;
    margin: 44px 0 28px;
  }
  .hero-top {
    order: 1;
  }
  .hero-spacer {
    display: none;
  }
  .pc-diagram,
  .pc-labels {
    display: none;
  }
  .sp-diagram,
  .sp-labels {
    display: block;
  }
  .sp-labels span {
    font-size: 10px;
  }
  .sp-labels .phase {
    top: 2px;
  }
  .sp-labels .one {
    left: 100.25px;
  }
  .sp-labels .two {
    left: 198.25px;
  }
  .sp-labels .three {
    left: 243.13px;
  }
  .sp-labels .m1 {
    top: 25px;
  }
  .sp-labels .m2 {
    top: 66px;
  }
  .sp-labels .m3 {
    top: 107px;
  }
  .sp-labels .m4 {
    top: 148px;
  }
  .sp-labels .m5 {
    top: 189px;
  }
  .sp-labels .method {
    left: 14px;
    width: 60px;
    text-align: right;
  }
  .hero-stats {
    padding-top: 0;
  }
}

@media (max-width:767px) {
  html {
    --header-h: 60px;
    /* 画面下の固定CTA(68px)にフォーカス先が隠れないようにする */
    scroll-padding-bottom: 68px;
  }
  body {
    padding-bottom: 68px;
  }
  .wrap {
    width: 335px;
    max-width: calc(100% - 40px);
  }
  .header {
    height: 60px;
    padding: 0 16px;
  }
  .header img {
    width: 102px;
    height: 28px;
  }
  .desktop-nav {
    display: none;
  }
  .spbtn {
    display: block;
    margin-left: auto;
    margin-right: 14px;
    padding: 9px 10px;
    background: var(--deep);
    border-radius: 2px;
    color: #fff;
    font-size: 11px;
    line-height: 1;
    letter-spacing: .44px;
  }
  .hamb {
    display: flex;
    width: 22px;
    padding: 4px 0;
    border: 0;
    background: transparent;
    flex-direction: column;
    gap: 5px;
  }
  .hamb i {
    width: 22px;
    height: 2px;
    background: var(--ink);
  }
  #menu:not([hidden]) {
    position: absolute;
    z-index: 10;
    top: 60px;
    left: 0;
    width: 100%;
    padding: 8px 20px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    display: grid;
  }
  #menu a {
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
  }
  .hero-in {
    display: flex;
    flex-direction: column;
  }
  .hero-stage {
    display: contents;
  }
  .hero-top {
    order: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 36px;
    padding-bottom: 0;
  }
  .hero-top:before {
    display: none;
  }
  .hero-text {
    width: 335px;
    gap: 14px;
  }
  .eyebrow {
    font-size: 12px;
    letter-spacing: .24px;
  }
  .hero h1 {
    font-size: 40px;
    line-height: 1.35;
    letter-spacing: .4px;
  }
  .copy {
    width: 335px;
    margin-top: 24px;
    gap: 24px;
  }
  .copy p,
  .intro {
    font-size: 15px;
    line-height: 1.95;
  }
  .copy .btn {
    width: 335px;
    padding: 18px 24px;
  }
  .hero-spacer {
    display: none;
  }
  .hero-stats {
    order: 2;
    align-items: stretch;
    gap: 8px;
    padding-top: 32px;
    padding-bottom: 0;
  }
  .stats {
    display: block;
    width: 335px;
  }
  .stats > div {
    padding: 12px 0;
    gap: 2px;
    border-bottom: 1px solid var(--line);
  }
  .stats > div + div {
    border-left: 0;
    padding-left: 0;
  }
  .stats b {
    font-size: 30px;
  }
  .stats small {
    font-size: 14px;
    line-height: 2.2;
  }
  .stats strong {
    font-size: 13px;
    line-height: 1.6;
  }
  .note {
    font-size: 12px;
  }
  .diagram {
    order: 3;
    position: relative;
    top: auto;
    left: auto;
    margin-top: 48px;
    width: 375px;
    aspect-ratio: 375 / 200;
    align-self: center;
    margin-bottom: 28px;
  }
  .pc-diagram,
  .pc-labels {
    display: none;
  }
  .sp-diagram,
  .sp-labels {
    display: block;
  }
  .sp-labels span {
    font-size: 10px;
  }
  .sp-labels .phase {
    top: 2px;
  }
  .sp-labels .one {
    left: 100.25px;
  }
  .sp-labels .two {
    left: 198.25px;
  }
  .sp-labels .three {
    left: 243.13px;
  }
  .sp-labels .m1 {
    top: 25px;
  }
  .sp-labels .m2 {
    top: 66px;
  }
  .sp-labels .m3 {
    top: 107px;
  }
  .sp-labels .m4 {
    top: 148px;
  }
  .sp-labels .m5 {
    top: 189px;
  }
  .sp-labels .method {
    left: 14px;
    width: 60px;
    text-align: right;
  }
  .section {
    padding: 72px 0;
  }
  h2 {
    font-size: 24px;
    line-height: 1.5;
    letter-spacing: .48px;
  }
  .issues {
    padding: 80px 0 72px;
  }
  .issues h2 {
    font-size: 22px;
    line-height: 1.5;
    letter-spacing: .44px;
  }
  .issuegrid {
    display: block;
    margin-top: 28px;
  }
  .featured {
    padding: 28px 24px;
    gap: 12px;
  }
  .featured h3 {
    font-size: 22px;
    line-height: 1.5;
  }
  .featured p {
    font-size: 15px;
    line-height: 1.9;
  }
  .list {
    margin-top: 16px;
  }
  .list article {
    padding: 18px 0;
  }
  .list h3 {
    font-size: 15px;
  }
  .list p {
    font-size: 14px;
    line-height: 1.8;
    margin-top: 6px;
  }
  .solution {
    margin-top: 48px;
    padding: 36px 24px;
  }
  .solution h3 {
    font-size: 20px;
    line-height: 1.55;
    margin-bottom: 12px;
  }
  .solution > div {
    display: block;
  }
  .solution p,
  .solution p:first-child {
    padding: 18px 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .solution b {
    font-size: 16px;
  }
  .solution span {
    font-size: 14px;
  }
  .service .lead {
    margin-top: 20px;
  }
  .lead {
    font-size: 17px;
    line-height: 1.65;
  }
  .service .intro {
    margin-top: 12px;
  }
  .cards {
    display: block;
    margin-top: 28px;
  }
  .cards article {
    margin-top: 0;
    padding: 0 24px 28px;
  }
  .cards article + article {
    margin-top: 12px;
  }
  .cards article:before {
    margin-bottom: 20px;
  }
  .cards h3 {
    font-size: 19px;
    margin-top: 4px;
  }
  .cards ul {
    font-size: 14px;
    line-height: 1.7;
  }
  .cards li + li {
    margin-top: 8px;
  }
  .strength {
    padding-top: 72px;
    padding-bottom: 72px;
  }
  .strengths {
    margin-top: 24px;
  }
  .strengths article {
    display: block;
    padding: 28px 0;
  }
  .strengths h3 {
    font-size: 20px;
  }
  .strengths article > div {
    margin-top: 14px;
  }
  .strengths p {
    font-size: 15px;
    line-height: 1.95;
  }
  .strengths .measure {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: flex-start;
    margin-top: 12px;
  }
  .measure b {
    font-size: 13px;
    line-height: normal;
  }
  .measure span {
    margin: 0;
    padding: 4px 10px;
    font-size: 12px;
    line-height: normal;
  }
  .steps p {
    display: grid;
    grid-template-columns: 58px 1fr;
    padding: 10px 0;
  }
  .steps span {
    display: block;
    font-size: 13px;
  }
  .strengths aside {
    margin-top: 14px;
    padding: 16px;
  }
  .strengths aside p {
    font-size: 15px;
    line-height: normal;
  }
  .band .wrap {
    min-height: 0;
    padding: 36px 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
  }
  .band b {
    font-size: 18px;
    line-height: 1.5;
  }
  .band .btn {
    width: 335px;
    padding: 18px 24px;
  }
  .cases {
    padding-top: 80px;
    padding-bottom: 72px;
  }
  .cases .lead {
    margin: 16px 0 4px;
  }
  .cases .lead small {
    margin-left: 8px;
    font: 400 12px 'Noto Sans JP';
    color: var(--muted);
    white-space: nowrap;
  }
  .cases .intro {
    margin-top: 14px;
  }
  .cases-grid {
    display: block;
    margin-top: 28px;
  }
  .case {
    margin-top: 0;
  }
  .case + .case {
    margin-top: 16px;
  }
  .case-heading {
    padding: 24px 20px 18px;
    min-height: 0;
  }
  .case-heading h3 {
    font-size: 18px;
  }
  .case-flow { padding: 0 0 22px; }
  .case-flow section { padding: 0; }
  .case-flow .problem { padding: 24px 0 0; }
  .case-flow .result { padding: 0 0 24px; }
  .case-flow p {
    font-size: 14px;
  }
  .result strong {
    font-size: 28px;
  }
  .case-meta { margin-top: 24px; padding-top: 16px; }
  .case-meta span {
    margin: 0 4px 0 0;
    padding: 4px 12px;
    font-size: 12px;
  }
  .case-meta p:last-child strong {
    font-size: 14px;
  }
  .faq {
    padding: 72px 0;
  }
  .faq .wrap {
    display: block;
  }
  .faq-list {
    margin-top: 24px;
  }
  .faq-list details {
    padding: 18px 0;
  }
  .faq-list summary {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    font-size: 15px;
    line-height: 1.6;
  }
  .faq-label {
    display: none;
  }
  .faq-list summary:after {
    content: "";
    display: none;
  }
  .faq-list p {
    font-size: 14px;
  }
  .final {
    padding: 64px 0;
  }
  .final .wrap {
    min-height: 0;
    display: block;
  }
  .final h2 {
    font-size: 24px;
    line-height: 1.5;
    letter-spacing: .48px;
  }
  .final p {
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.95;
  }
  .final b {
    font-size: 16px;
  }
  .final .wrap > div:last-child {
    display: block;
    margin-top: 40px;
  }
  .final .wrap > div:last-child > b {
    margin-bottom: 16px;
    font-size: 16px;
  }
  .final .btn {
    width: 335px;
    padding: 18px 24px;
  }
  footer {
    padding: 48px 0 112px;
  }
  footer .wrap {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .footer-main {
    display: contents;
  }
  footer img {
    display: block;
    width: 116px;
    height: 32px;
  }
  .footer-main p {
    margin: 0;
    font-size: 13px;
    line-height: 1.9;
  }
  footer nav {
    position: static;
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    margin-top: 0;
  }
  .footer-links {
    position: static;
    display: contents;
  }
  .footer-cta {
    display: none;
  }
  footer nav a {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: 13px;
    letter-spacing: 1.04px;
  }
  footer nav a:after {
    content: "";
    display: none;
  }
  .footer-arrow {
    color: var(--muted);
    font: 400 14px/1 'Noto Sans JP', sans-serif;
    letter-spacing: 0;
  }
  footer small {
    margin-top: 0;
    padding-top: 0;
    border: 0;
  }
  .fixed {
    display: block;
    position: fixed;
    z-index: 20;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 68px;
    padding: 8px 16px;
    background: #fff;
    box-shadow: 0 -4px 16px rgba(28,37,39,.08);
  }
  .fixed .btn {
    width: 100%;
    height: 52px;
    padding: 0;
    font-size: 14px;
  }
  .fixed[hidden] {
    display: none;
  }
}

/* Top update: the PC background is deliberately independent from the 1200px content grid. */
@media (min-width:1024px) {
  .hero-stage { min-height: max(520px,calc(var(--diagram-top) + 15.4167vw + 18px)); }
  .hero-top {
    position: relative;
    z-index: 1;
    width: min(1200px,calc(100% - 80px));
    flex-direction: row;
    align-items: flex-end;
    padding-top: 72px;
    padding-bottom: 0;
  }
  .hero-text { width: min(57%,680px); }
  .hero h1 { font-size: clamp(56px,4.5vw,76px); line-height: 1.3; }
  .copy { width: min(36%,400px); align-self: flex-end; }
  .hero-spacer { min-height: 0; }
  .diagram {
    top: var(--diagram-top);
    bottom: auto;
    inset-inline: 0;
    aspect-ratio: 1440 / 222;
    mask-image: linear-gradient(to right,transparent 0%,black 10%,black 90%,transparent 100%);
    -webkit-mask-image: linear-gradient(to right,transparent 0%,black 10%,black 90%,transparent 100%);
  }
  .hero-stats { width: min(1200px,calc(100% - 80px)); }
  .pc-labels { display: none; }
  .strengths article { grid-template-columns: 300px minmax(0,852px); gap: 48px; }
  .measure { display: block; margin-top: 14px; }
  .measure b { color: var(--ink); font-size: 15px; }
  .cases-grid { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; align-items: start; }
  .case { border: 0; border-top: 2px solid var(--teal); display: block; padding-top: 24px; }
  .case-heading { min-height: 94px; padding: 0; }
  .case-flow { display: block; }
  .case-flow section { padding: 0; background: transparent; border: 0; }
  .case-flow .result { min-height: 0; display: block; padding: 0 0 24px; }
  .case-flow .problem { min-height: 0; padding-top: 24px; }
  .case-flow .support { min-height: 0; padding: 16px 0 24px; }
  .case-flow .result b, .case-flow .problem b, .case-flow .support b { color: var(--muted); font-size: 12px; line-height: 1.7; }
  .case-flow .result b { color: #146c69; font-weight: 500; }
  .result strong { font-size: 34px; }
  .case-meta { min-height: 0; margin-top: 24px; padding-top: 16px; }
  .case-meta p { margin: 0; font-size: 13px; line-height: 1.7; }
  .case-meta b { color: var(--muted); }
}

/* 支援実績：カードを5段の通常フローにし、PCでは親グリッドの段を共有する。 */
.case > section {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0;
}
.case > section b {
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .96px;
}
.case > section p {
  margin: 0;
  color: var(--copy);
  font-size: 14px;
  line-height: 1.8;
}
.case > .result { padding: 0 0 24px; }
.case > .problem { padding-top: 24px; }
.case > .support { padding: 16px 0 24px; }
.case > .result b { color: #146c69; font-weight: 500; }
.case > .problem b,
.case > .support b { color: var(--muted); }

@media (min-width:768px) and (max-width:1199px) {
  .case-heading { padding: 0 0 22px; }
}

@media (min-width:1200px) {
  .cases-grid {
    grid-template-columns: repeat(3,minmax(0,1fr));
    grid-template-rows: repeat(5,auto);
    column-gap: 24px;
    row-gap: 0;
  }
  .case {
    display: grid;
    grid-row: span 5;
    grid-template-rows: subgrid;
  }
  .case-heading { min-height: 0; }
  .case-meta { min-height: 0; }
}

@supports not (grid-template-rows: subgrid) {
  @media (min-width:1200px) {
    .cases-grid { grid-template-rows: none; }
    .case { display: block; grid-row: auto; grid-template-rows: none; }
  }
}


@media (max-width:767px) {
  .strengths .measure { display: block; }
  .measure b { color: var(--ink); font-size: 13px; }
  .case { border: 0; border-top: 2px solid var(--teal); }
  .case-heading { padding: 24px 0 18px; }
  .case-flow { display: block; padding: 0 0 22px; }
  .case-flow section { padding: 0; background: transparent; border: 0; }
  .case-flow .result { padding: 0 0 24px; display: block; }
  .case-flow .problem { padding: 24px 0 0; }
  .case-flow .support { padding: 16px 0 24px; }
  .case-flow .result b { color: #146c69; }
  .case-flow .problem b, .case-flow .support b { color: var(--muted); }
  .case-meta { padding-top: 16px; }
  .case-meta p { margin: 0; font-size: 13px; line-height: 1.7; }
  .case-meta b { color: var(--muted); }
}

/* フッター下段：個人情報の取り扱いリンクとコピーライト（2026-10-08 公開準備で追加） */
footer small {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
}
footer small a {
  text-decoration: underline;
}