.page-home {
  overflow-x: clip;
  --ph-cut: 18px;
  --ph-pad: clamp(52px, 8vw, 104px);
}

/* ---------- Hero ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 52px) 0 0;
  color: var(--c-white);
  background:
    radial-gradient(120% 90% at 82% -10%, rgba(76, 201, 240, 0.22), transparent 62%),
    radial-gradient(90% 70% at 0% 110%, rgba(230, 57, 70, 0.24), transparent 60%),
    linear-gradient(180deg, #14152c 0%, var(--c-deep) 100%);
  overflow: hidden;
}

.page-home .hero::after {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: 78px;
  height: 5px;
  background: var(--c-red);
  transform: rotate(-6deg);
  opacity: 0.85;
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 3vw, 20px);
}

.page-home .hero__context {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-line);
}

.page-home .hero__title {
  margin: 0 0 18px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-home .hero__title-l1 {
  display: block;
}

.page-home .hero__title-l2 {
  display: inline-block;
  margin-top: 10px;
  padding: 0 0.16em 0.04em;
  background: var(--c-red);
  transform: skewX(-6deg);
  transform-origin: left bottom;
  color: var(--c-white);
}

.page-home .hero__lede {
  max-width: 36em;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}

.page-home .hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero__field,
.page-home .hero__shot {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(201, 203, 216, 0.24);
  background: linear-gradient(160deg, #22243f, #0d0e1c);
}

.page-home .hero__field {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 26px));
}

.page-home .hero__field img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  max-width: 100%;
}

.page-home .hero__field-cap {
  position: absolute;
  left: 12px;
  bottom: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.78);
  background: rgba(11, 12, 22, 0.66);
  padding: 4px 8px;
}

.page-home .hero__shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  max-width: 100%;
}

/* ---------- Board ---------- */
.page-home .board {
  position: relative;
  z-index: 1;
  margin-top: clamp(24px, 4vw, 44px);
  background: var(--c-deep);
  border-top: 1px solid rgba(201, 203, 216, 0.22);
  border-bottom: 1px solid rgba(201, 203, 216, 0.22);
}

.page-home .board__list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-home .board__item {
  flex: 0 0 auto;
  min-width: 178px;
  padding: 13px clamp(14px, 2.4vw, 24px);
  border-right: 1px solid rgba(201, 203, 216, 0.16);
  scroll-snap-align: start;
}

.page-home .board__k {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-line);
}

.page-home .board__v {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--c-white);
}

.page-home .board__item:first-child .board__v {
  color: var(--c-yellow);
}

.page-home .board__item:hover .board__v,
.page-home .board__item:focus-within .board__v {
  color: var(--c-blue);
}

/* ---------- Shared section shells ---------- */
.page-home .sec {
  padding: var(--ph-pad) 0;
}

.page-home .sec--paper {
  background-color: var(--c-paper);
  color: var(--c-ink);
}

.page-home .sec--dark {
  background: linear-gradient(180deg, #151633 0%, var(--c-ink) 100%);
  color: var(--c-white);
}

.page-home .sec--graphite {
  background: linear-gradient(160deg, var(--c-graphite) 0%, #1d1e30 100%);
  color: var(--c-white);
}

.page-home .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(10px, 2vw, 28px);
}

.page-home .split__idx span {
  display: block;
  width: 46px;
  padding-top: 7px;
  border-top: 2px solid var(--c-red);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--c-red);
}

.page-home .sec__title {
  margin: 6px 0 14px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.36;
  letter-spacing: -0.01em;
}

.page-home .sec__lede {
  max-width: 40ch;
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.8;
  opacity: 0.86;
}

.page-home .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-red);
}

.page-home .sec--dark .eyebrow,
.page-home .sec--graphite .eyebrow,
.page-home .eyebrow--light {
  color: var(--c-yellow);
}

.page-home .txt {
  max-width: 38em;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
}

.page-home .txt--meta {
  margin-top: 22px;
  font-size: 14.5px;
  opacity: 0.78;
}

.page-home .txt a,
.page-home .txt-link {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--c-red);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.page-home .txt-link {
  display: inline-block;
  margin-top: 4px;
  font-size: 14.5px;
  font-weight: 600;
}

.page-home .sec--dark .txt a,
.page-home .sec--graphite .txt a,
.page-home .sec--dark .txt-link,
.page-home .sec--graphite .txt-link {
  text-decoration-color: var(--c-blue);
}

.page-home .txt a:hover,
.page-home .txt-link:hover {
  color: var(--c-red);
}

.page-home .sec--dark .txt-link:hover,
.page-home .sec--graphite .txt-link:hover {
  color: var(--c-blue);
}

/* ---------- Guide block ---------- */
.page-home .guide {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 32px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-home .guide__fig {
  margin: 0;
}

.page-home .guide__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  max-width: 100%;
  border: 1px solid var(--c-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-home .guide__fig figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: #6a6d80;
}

.page-home .data-strip {
  margin-top: clamp(22px, 4vw, 36px);
}

/* ---------- Steps ---------- */
.page-home .steps {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(238px, 80%);
  gap: 14px;
  margin-top: clamp(20px, 3vw, 30px);
  padding-bottom: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-home .step {
  position: relative;
  scroll-snap-align: start;
  padding: 22px 20px 24px;
  background: rgba(43, 45, 66, 0.92);
  border: 1px solid rgba(201, 203, 216, 0.22);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ph-cut)), calc(100% - var(--ph-cut)) 100%, 0 100%);
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-home .step:hover,
.page-home .step:focus-within {
  border-color: var(--c-blue);
  transform: translateY(-2px);
}

.page-home .step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 32px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--c-yellow);
}

.page-home .step__name {
  margin: 10px 0 12px;
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-white);
}

.page-home .step__do,
.page-home .step__out {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.75;
}

.page-home .step__out {
  margin-bottom: 0;
  color: var(--c-blue);
}

.page-home .step__lab {
  display: inline-block;
  margin-right: 6px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-ink);
  background: var(--c-line);
}

.page-home .step__out .step__lab {
  background: var(--c-blue);
}

/* ---------- Service accordion ---------- */
.page-home .svc-banner {
  margin: clamp(16px, 3vw, 24px) 0 18px;
  overflow: hidden;
  border: 1px solid var(--c-line);
}

.page-home .svc-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  max-width: 100%;
}

.page-home .svc {
  margin-top: 10px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
}

.page-home .svc__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 14px;
  background: var(--c-ink);
  color: var(--c-white);
  cursor: pointer;
  list-style: none;
}

.page-home .svc__head::-webkit-details-marker {
  display: none;
}

.page-home .svc__head:focus-visible {
  outline: 2px solid var(--c-yellow);
  outline-offset: 2px;
}

.page-home .svc__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-yellow);
}

.page-home .svc__name {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 700;
}

.page-home .svc__count {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--c-blue);
  border: 1px solid rgba(76, 201, 240, 0.55);
  padding: 2px 8px;
}

.page-home .svc__head::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-line);
}

.page-home .svc[open] .svc__head::after {
  content: "−";
  color: var(--c-yellow);
}

.page-home .svc__list {
  margin: 0;
  padding: 16px 16px 18px;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-home .svc__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-ink);
}

.page-home .svc__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  background: var(--c-red);
}

/* ---------- Mobile section ---------- */
.page-home .mob {
  display: grid;
  gap: 0;
  margin: clamp(18px, 3vw, 26px) 0;
}

.page-home .mob__item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid rgba(201, 203, 216, 0.24);
}

.page-home .mob__item:last-child {
  border-bottom: 1px solid rgba(201, 203, 216, 0.24);
}

.page-home .mob__num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  line-height: 1.4;
  color: var(--c-red);
}

.page-home .mob__num--blue {
  color: var(--c-blue);
}

.page-home .mob__num--yellow {
  color: var(--c-yellow);
}

.page-home .mob__name {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-white);
}

.page-home .mob__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.82);
}

/* ---------- Reports ---------- */
.page-home .reps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-home .rep {
  padding: 20px 18px 22px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-red);
}

.page-home .rep:nth-child(2) {
  border-top-color: var(--c-blue);
}

.page-home .rep:nth-child(3) {
  border-top-color: var(--c-yellow);
}

.page-home .rep__title {
  margin: 12px 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-home .rep__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: #3c3e52;
}

/* ---------- Bookmark strip ---------- */
.page-home .book {
  padding: var(--ph-pad) 0 40px;
  background: var(--c-deep);
  color: var(--c-white);
}

.page-home .book__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
}

.page-home .book__lede {
  max-width: 34em;
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
}

.page-home .book__links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-home .book__link {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 14px 14px;
  border: 1px solid rgba(201, 203, 216, 0.26);
  color: var(--c-white);
  text-decoration: none;
  transition: border-color 220ms var(--ease), background-color 220ms var(--ease);
}

.page-home .book__link:hover,
.page-home .book__link:focus-visible {
  border-color: var(--c-blue);
  background: rgba(76, 201, 240, 0.08);
}

.page-home .book__link-k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-yellow);
}

.page-home .book__link-v {
  font-size: 14.5px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.86);
}

.page-home .book__meta {
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid rgba(201, 203, 216, 0.2);
}

.page-home .book__meta p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.68);
}

.page-home .book__meta a {
  color: var(--c-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 900px 以上 ---------- */
@media (min-width: 900px) {
  .page-home .hero {
    padding-bottom: 0;
  }

  .page-home .hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.62fr);
    grid-template-areas:
      "copy shot"
      "field shot";
    align-items: start;
  }

  .page-home .hero__copy {
    grid-area: copy;
  }

  .page-home .hero__field {
    grid-area: field;
  }

  .page-home .hero__shot {
    grid-area: shot;
    align-self: stretch;
  }

  .page-home .hero__shot img {
    height: 100%;
    aspect-ratio: auto;
    object-fit: cover;
  }

  .page-home .hero::after {
    bottom: 60px;
  }

  .page-home .split {
    grid-template-columns: 72px minmax(0, 1fr);
    align-items: start;
  }

  .page-home .split__idx {
    position: sticky;
    top: calc(var(--hdr-h) + 26px);
  }

  .page-home .guide {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-home .steps {
    grid-auto-columns: minmax(280px, 330px);
  }

  .page-home .svc__list {
    grid-template-columns: 1fr 1fr;
    column-gap: 26px;
  }

  .page-home .reps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-home .book__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-home .hero__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.55fr);
  }

  .page-home .svc-banner img {
    aspect-ratio: 21 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .step,
  .page-home .book__link,
  .page-home .board__v {
    transition: none;
  }

  .page-home .step:hover,
  .page-home .step:focus-within {
    transform: none;
  }
}
<<<END>>>