.page-home {
  --home-cut: 16px;
  --home-rgb-paper: 244, 241, 234;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
  padding-bottom: 4.8rem;
}

.page-home .home-crumb {
  padding-top: 1rem;
  padding-bottom: .4rem;
}

.page-home .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-home .eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- hero ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(1.8rem, 5vw, 3.4rem) 0 clamp(2.4rem, 6vw, 4.6rem);
  background:
    radial-gradient(80% 60% at 82% 8%, rgba(255, 77, 26, .16), transparent 62%),
    radial-gradient(70% 55% at 10% 90%, rgba(0, 229, 255, .10), transparent 65%),
    linear-gradient(158deg, var(--ink) 0%, var(--teal-black) 64%, #07171c 100%);
  border-bottom: 1px solid var(--line);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(var(--home-rgb-paper), .09) 1px, transparent 1px);
  background-size: 4px 4px;
  opacity: .5;
  pointer-events: none;
}

.page-home .hero__grid {
  position: relative;
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: center;
}

.page-home .hero__copy > * + * {
  margin-top: 1rem;
}

.page-home .hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.95rem, 6.2vw, 3.55rem);
  line-height: 1.06;
  letter-spacing: -.012em;
  color: var(--paper);
}

.page-home .hero__title em {
  display: inline-block;
  font-style: italic;
  font-weight: 800;
  color: var(--flame);
  transform: skewX(-4deg);
}

.page-home .hero__lead {
  max-width: 48ch;
  font-size: clamp(.96rem, 1.7vw, 1.08rem);
  line-height: 1.78;
  color: rgba(var(--home-rgb-paper), .8);
}

.page-home .hero__points {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-home .hero__points li {
  position: relative;
  padding-left: 1.15rem;
  font-size: .9rem;
  line-height: 1.62;
  color: rgba(var(--home-rgb-paper), .72);
}

.page-home .hero__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 9px;
  height: 2px;
  background: var(--flame);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-home .hero__board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .9rem 1.1rem;
  margin-top: 1.7rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line-strong);
}

.page-home .board-item {
  display: flex;
  flex-direction: column;
  gap: .2rem;
}

.page-home .board-num {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4.4vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--paper);
  animation: home-rise .55s var(--ease) both;
}

.page-home .board-item:nth-child(2) .board-num { animation-delay: .08s; }
.page-home .board-item:nth-child(3) .board-num { animation-delay: .16s; }

.page-home .board-plus,
.page-home .board-unit {
  font-size: .5em;
  color: var(--flame);
  margin-left: .1em;
}

.page-home .board-label {
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-home .hero__visual {
  position: relative;
}

.page-home .hero__figure {
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-lift);
}

.page-home .hero__figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 6 / 7;
}

.page-home .hero__track {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: .85;
}

@keyframes home-rise {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- band shell ---------- */
.page-home .band {
  position: relative;
  padding: clamp(2.4rem, 6.5vw, 5rem) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .band--teal { background: var(--teal-black); }
.page-home .band--wine { background: var(--wine-black); }
.page-home .band--indigo { background: var(--indigo-black); }
.page-home .band--ink { background: var(--ink); }

.page-home .section__head {
  display: grid;
  gap: .55rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.6rem);
  max-width: 68ch;
}

.page-home .section__index {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(3.2rem, 11vw, 6.4rem);
  line-height: .78;
  color: transparent;
  -webkit-text-stroke: 1px rgba(var(--home-rgb-paper), .26);
  letter-spacing: .02em;
}

.page-home .section__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.45rem, 3.6vw, 2.35rem);
  line-height: 1.14;
  color: var(--paper);
}

.page-home .section__lead {
  max-width: 60ch;
  font-size: .95rem;
  line-height: 1.76;
  color: rgba(var(--home-rgb-paper), .72);
}

/* ---------- steps ---------- */
.page-home .steps {
  display: grid;
  gap: .9rem;
}

.page-home .step {
  position: relative;
  padding: 1.35rem 1.2rem 1.5rem;
  background: linear-gradient(165deg, rgba(44, 50, 56, .92), rgba(17, 20, 23, .92));
  border-top: 2px solid var(--flame);
  clip-path: polygon(0 0, calc(100% - var(--home-cut)) 0, 100% var(--home-cut), 100% 100%, 0 100%);
}

.page-home .step__num {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .14em;
  color: var(--flame);
}

.page-home .step__title {
  margin-top: .45rem;
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .step__text {
  margin-top: .5rem;
  font-size: .88rem;
  line-height: 1.7;
  color: rgba(var(--home-rgb-paper), .72);
}

.page-home .steps__figure {
  margin-top: 1.2rem;
  border: 1px solid var(--line);
}

.page-home .steps__figure img,
.page-home .entry-figure img,
.page-home .flow-figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- entries ---------- */
.page-home .entry-grid {
  display: grid;
  gap: .9rem;
}

.page-home .entry-card {
  padding: 1.3rem 1.15rem 1.4rem;
  background: rgba(44, 50, 56, .72);
  border: 1px solid var(--line);
}

.page-home .entry-card__title {
  margin-top: .7rem;
  font-family: var(--font-display);
  font-size: 1.24rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .entry-card__text {
  margin-top: .5rem;
  font-size: .88rem;
  line-height: 1.72;
  color: rgba(var(--home-rgb-paper), .72);
}

.page-home .entry-card__link {
  display: inline-block;
  margin-top: .9rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
  padding-bottom: 2px;
}

.page-home .entry-card__link:hover,
.page-home .entry-card__link:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-home .fold {
  margin-top: 1.3rem;
  border: 1px solid var(--line);
  background: rgba(11, 31, 36, .6);
}

.page-home .fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--cyan);
}

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

.page-home .fold summary::after {
  content: "+";
  font-size: 1rem;
  color: var(--flame);
}

.page-home .fold[open] summary::after { content: "−"; }

.page-home .table-scroll {
  overflow-x: auto;
  border-top: 1px solid var(--line);
}

.page-home .data-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: .82rem;
}

.page-home .data-table caption {
  padding: .6rem 1rem;
  text-align: left;
  font-size: .74rem;
  color: var(--steel);
  letter-spacing: .04em;
}

.page-home .data-table th,
.page-home .data-table td {
  padding: .7rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  color: rgba(var(--home-rgb-paper), .82);
  white-space: nowrap;
}

.page-home .data-table th {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--steel);
  background: rgba(17, 20, 23, .6);
}

.page-home .data-table tbody tr:last-child td { border-bottom: 0; }

.page-home .entry-figure {
  margin-top: 1.3rem;
  border: 1px solid var(--line);
}

/* ---------- version ---------- */
.page-home .version {
  display: grid;
  gap: 1.8rem;
}

.page-home .version__intro > * + * {
  margin-top: .7rem;
}

.page-home .version__intro .btn {
  margin-top: 1.1rem;
}

.page-home .notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-home .note {
  padding: .95rem 1rem 1.05rem;
  border-left: 2px solid var(--flame);
  background: rgba(17, 20, 23, .5);
}

.page-home .note__num {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--ember);
}

.page-home .note__title {
  margin-top: .3rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .note__text {
  margin-top: .35rem;
  font-size: .86rem;
  line-height: 1.7;
  color: rgba(var(--home-rgb-paper), .72);
}

/* ---------- flow ---------- */
.page-home .chain {
  display: grid;
  gap: .9rem;
  counter-reset: none;
}

.page-home .chain__step {
  position: relative;
  padding: 1.1rem 1rem 1.2rem;
  background: rgba(44, 50, 56, .6);
  border-top: 1px solid var(--line-strong);
}

.page-home .chain__step::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 1rem;
  width: 34px;
  height: 2px;
  background: var(--cyan);
}

.page-home .chain__num {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-home .chain__title {
  margin-top: .4rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .chain__text {
  margin-top: .35rem;
  font-size: .86rem;
  line-height: 1.7;
  color: rgba(var(--home-rgb-paper), .7);
}

.page-home .flow-figure {
  margin-top: 1.3rem;
  border: 1px solid var(--line);
}

/* ---------- figures ---------- */
.page-home .figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-home .figure {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: 1.05rem .9rem 1.15rem;
  background: linear-gradient(170deg, rgba(11, 31, 36, .95), rgba(17, 20, 23, .95));
}

.page-home .figure__num {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 4.2vw, 2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--flame);
}

.page-home .figure__unit {
  font-size: .55em;
  color: var(--ember);
  margin-left: .12em;
}

.page-home .figure__label {
  font-size: .74rem;
  letter-spacing: .03em;
  color: var(--steel);
}

.page-home .assure {
  margin-top: 1.4rem;
  display: grid;
  gap: .85rem;
}

.page-home .assure__item {
  padding: .95rem 1rem 1.05rem;
  background: rgba(17, 20, 23, .55);
  border-left: 2px solid var(--cyan);
}

.page-home .assure__title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .assure__text {
  margin-top: .38rem;
  font-size: .86rem;
  line-height: 1.72;
  color: rgba(var(--home-rgb-paper), .72);
}

/* ---------- help ---------- */
.page-home .help-grid {
  display: grid;
  gap: .9rem;
}

.page-home .help-card {
  padding: 1.25rem 1.1rem 1.3rem;
  background: rgba(44, 50, 56, .68);
  border: 1px solid var(--line);
}

.page-home .help-card__title {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .help-card__text {
  margin-top: .5rem;
  font-size: .87rem;
  line-height: 1.74;
  color: rgba(var(--home-rgb-paper), .72);
  overflow-wrap: anywhere;
}

.page-home .help-card__link {
  display: inline-block;
  margin-top: .85rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
  padding-bottom: 2px;
}

/* ---------- rail ---------- */
.page-home .rail {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  gap: .4rem;
  padding: .5rem .6rem calc(.5rem + env(safe-area-inset-bottom, 0px));
  background: rgba(17, 20, 23, .94);
  border-top: 1px solid var(--line-strong);
  backdrop-filter: blur(8px);
}

.page-home .rail__link {
  flex: 1;
  text-align: center;
  padding: .55rem .4rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-home .rail__link:first-child {
  color: var(--cyan);
  border-color: rgba(0, 229, 255, .4);
}

.page-home .rail__link:hover,
.page-home .rail__link:focus-visible {
  color: var(--flame);
  border-color: var(--flame);
}

/* ---------- responsive ---------- */
@media (min-width: 620px) {
  .page-home .hero__board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-home .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-home .entry-card:nth-child(2) {
    transform: translateY(18px);
  }

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

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

  .page-home .chain {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

  .page-home .hero__grid {
    grid-template-columns: 5fr 7fr;
  }

  .page-home .version {
    grid-template-columns: 5fr 7fr;
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
  }

  .page-home .version__intro {
    position: sticky;
    top: 5.5rem;
  }

  .page-home .rail {
    left: auto;
    right: 1.1rem;
    top: 50%;
    bottom: auto;
    transform: translateY(-50%);
    flex-direction: column;
    width: auto;
    padding: .5rem;
    border: 1px solid var(--line-strong);
    border-radius: 22px;
    background: rgba(17, 20, 23, .88);
  }

  .page-home .rail__link {
    flex: none;
    width: 5.6rem;
  }
}

@media (min-width: 1100px) {
  .page-home .section__head {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .board-num {
    animation: none;
  }

  .page-home .entry-card:nth-child(2) {
    transform: none;
  }

  .page-home .rail__link {
    transition: none;
  }
}
<<<END>>>