.page-home {
  --home-max: 1280px;
  --home-body: rgba(17, 24, 23, .78);
  --home-body-soft: rgba(17, 24, 23, .62);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-home .wrap {
  max-width: var(--home-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-home .mono {
  font-family: var(--font-mono);
  letter-spacing: .06em;
  font-size: 12px;
}

.page-home .hairline {
  height: 1px;
  background: linear-gradient(90deg, var(--copper), rgba(184, 131, 62, 0));
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

/* ---------- buttons ---------- */
.page-home .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  background: var(--ink-teal);
  color: var(--white);
  border: 1px solid var(--ink-teal);
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.page-home .btn:hover {
  background: var(--ink-deep);
  border-color: var(--ink-deep);
}
.page-home .btn--ghost {
  background: transparent;
  color: var(--ink-teal);
  border-color: var(--line);
}
.page-home .btn--ghost:hover {
  background: transparent;
  border-color: var(--copper);
  color: var(--copper);
}

/* ---------- cover ---------- */
.page-home .cover {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-teal);
  color: var(--white);
  padding: clamp(40px, 6vw, 76px) 0 clamp(44px, 7vw, 92px);
}
.page-home .cover::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(214, 163, 92, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(214, 163, 92, .07) 1px, transparent 1px);
  background-size: 64px 64px;
}
.page-home .cover__img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
  filter: grayscale(.35) contrast(1.08);
}
.page-home .cover__inner {
  position: relative;
  max-width: var(--home-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-home .cover__rail {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.page-home .cover__rail-label {
  margin: 0 0 12px;
  color: var(--copper-bright);
  letter-spacing: .2em;
  text-transform: uppercase;
}
.page-home .cover__rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.page-home .cover__rail-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 8px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .76);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, .09);
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}
.page-home .cover__rail-list a:hover,
.page-home .cover__rail-list a:focus-visible {
  color: var(--amber);
  padding-left: 6px;
}
.page-home .cover__rail-list .mono {
  color: var(--copper-bright);
  flex: none;
}
.page-home .cover__rail-note {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, .46);
}

.page-home .cover__path {
  margin: 0 0 18px;
  color: var(--copper-bright);
  letter-spacing: .16em;
  text-transform: uppercase;
}
.page-home .cover__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(32px, 5.6vw, 66px);
  line-height: 1.16;
  letter-spacing: .01em;
  margin: 0 0 20px;
  max-width: 12em;
}
.page-home .cover__lede {
  margin: 0 0 30px;
  max-width: 44em;
  font-size: clamp(15px, 1.5vw, 17px);
  color: rgba(255, 255, 255, .8);
  line-height: 1.85;
}
.page-home .cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.page-home .cover .btn {
  background: var(--copper);
  border-color: var(--copper);
  color: var(--ink-deep);
}
.page-home .cover .btn:hover {
  background: var(--amber);
  border-color: var(--amber);
}
.page-home .cover .btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, .3);
  color: var(--white);
}
.page-home .cover .btn--ghost:hover {
  border-color: var(--copper-bright);
  color: var(--amber);
  background: transparent;
}
.page-home .cover__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  max-width: 460px;
}
.page-home .cover__facts dt {
  margin: 0 0 4px;
  color: rgba(255, 255, 255, .5);
  font-size: 11px;
  letter-spacing: .1em;
}
.page-home .cover__facts dd {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.4vw, 26px);
  color: var(--copper-bright);
  line-height: 1.2;
}

/* ---------- section shell ---------- */
.page-home .section {
  padding: clamp(48px, 6.5vw, 96px) 0;
}
.page-home .section--slate {
  background: var(--slate);
}
.page-home .section--ink {
  background: var(--ink-deep);
  color: var(--white);
}
.page-home .sec-head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 30px);
  max-width: 78ch;
}
.page-home .sec-num {
  margin: 0;
  color: var(--copper);
  letter-spacing: .16em;
}
.page-home .sec-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.3vw, 40px);
  line-height: 1.26;
  letter-spacing: .01em;
}
.page-home .sec-intro {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--home-body);
}

/* ---------- 01 index list ---------- */
.page-home .nav-split {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}
.page-home .index-list {
  border-top: 1px solid var(--hairline);
}
.page-home .index-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 18px;
  gap: 12px;
  align-items: baseline;
  padding: 16px 4px;
  border-bottom: 1px solid var(--hairline-soft);
  text-decoration: none;
  color: inherit;
  transition: background .18s var(--ease), padding-left .18s var(--ease);
}
.page-home .index-row:hover,
.page-home .index-row:focus-visible {
  background: rgba(184, 131, 62, .07);
  padding-left: 10px;
}
.page-home .index-row__num {
  color: var(--copper);
  font-size: 12px;
}
.page-home .index-row__body {
  display: grid;
  gap: 3px;
}
.page-home .index-row__title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
}
.page-home .index-row__desc {
  font-size: 14.5px;
  color: var(--home-body-soft);
  line-height: 1.7;
}
.page-home .index-row__arrow {
  color: var(--copper-bright);
  font-size: 15px;
  transition: transform .2s var(--ease);
}
.page-home .index-row:hover .index-row__arrow {
  transform: translateX(4px);
}

/* ---------- figures ---------- */
.page-home .figure {
  margin: 0;
}
.page-home .figure__media {
  position: relative;
  border: 1px solid var(--line);
  padding: 8px;
  background: var(--white);
}
.page-home .figure__media::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(184, 131, 62, .22);
  pointer-events: none;
}
.page-home .figure__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.9);
}
.page-home .figure__caption {
  margin-top: 10px;
  color: var(--home-body-soft);
  font-size: 11.5px;
}

/* ---------- 02 version ---------- */
.page-home .version__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}
.page-home .version__text > p {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--home-body);
}
.page-home .steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-home .steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(14, 42, 47, .12);
}
.page-home .steps__num {
  color: var(--copper);
  font-size: 12px;
  letter-spacing: .1em;
  padding-top: 4px;
}
.page-home .steps__title {
  margin: 0 0 4px;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
}
.page-home .steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--home-body-soft);
}
.page-home .version .btn {
  background: var(--ink-teal);
  border-color: var(--ink-teal);
  color: var(--white);
}
.page-home .version .btn:hover {
  background: var(--ink-deep);
  border-color: var(--ink-deep);
}

/* ---------- 03 favorites ---------- */
.page-home .fav-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}
.page-home .fav-panel {
  border: 1px solid var(--hairline);
  background: var(--white);
  padding: clamp(18px, 2.6vw, 28px);
}
.page-home .fav-panel__hint {
  margin: 0 0 16px;
  color: var(--celadon);
  font-size: 12px;
  letter-spacing: .08em;
}
.page-home .fav-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.page-home .fav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border: 1px solid var(--hairline-soft);
  background: var(--paper);
  font-size: 15px;
  cursor: pointer;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}
.page-home .fav-item:hover {
  border-color: var(--line);
  background: rgba(184, 131, 62, .06);
}
.page-home .fav-item input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.page-home .fav-item__box {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  border: 1px solid var(--copper);
  background: var(--white);
  transition: background .18s var(--ease);
}
.page-home .fav-item input:checked + .fav-item__box {
  background: var(--copper);
}
.page-home .fav-item input:checked + .fav-item__box::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--paper);
}
.page-home .fav-item input:checked ~ span:last-child {
  color: var(--copper);
}
.page-home .fav-item input:focus-visible + .fav-item__box {
  outline: 2px solid var(--celadon);
  outline-offset: 2px;
}

.page-home .fav-notes {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hairline);
}
.page-home .fav-note {
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline-soft);
}
.page-home .fav-note__num {
  margin: 0 0 6px;
  color: var(--copper);
  letter-spacing: .12em;
}
.page-home .fav-note h3 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
}
.page-home .fav-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--home-body-soft);
}

/* ---------- 04 support ---------- */
.page-home .support .sec-num {
  color: var(--copper-bright);
}
.page-home .support .sec-title {
  color: var(--white);
}
.page-home .support .sec-intro {
  color: rgba(255, 255, 255, .72);
}
.page-home .support__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}
.page-home .support .figure__media {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(214, 163, 92, .32);
}
.page-home .support .figure__media::after {
  border-color: rgba(214, 163, 92, .3);
}
.page-home .support .figure__caption {
  color: rgba(255, 255, 255, .5);
}
.page-home .support__list {
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(214, 163, 92, .3);
}
.page-home .support-row {
  display: block;
  padding: 20px 4px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  text-decoration: none;
  color: var(--white);
  transition: background .2s var(--ease), padding-left .2s var(--ease);
}
.page-home .support-row:hover,
.page-home .support-row:focus-visible {
  background: rgba(214, 163, 92, .08);
  padding-left: 12px;
}
.page-home .support-row__num {
  margin: 0 0 6px;
  color: var(--copper-bright);
  letter-spacing: .1em;
}
.page-home .support-row h3 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
}
.page-home .support-row p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .7);
}
.page-home .support-row__link {
  font-size: 13.5px;
  color: var(--amber);
  letter-spacing: .04em;
}
.page-home .support__foot {
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .48);
  font-size: 11.5px;
}

/* ---------- 05 service ---------- */
.page-home .service {
  background: var(--paper);
}
.page-home .service__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}
.page-home .service__list {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hairline);
}
.page-home .service__list > div {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-soft);
}
.page-home .service__list dt {
  color: var(--copper);
  font-size: 11.5px;
  letter-spacing: .14em;
}
.page-home .service__list dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}
.page-home .service__list a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 124, 116, .35);
}
.page-home .service__list a:hover {
  color: var(--copper);
  border-bottom-color: var(--copper);
}
.page-home .service__ask {
  border: 1px solid var(--line);
  background: var(--white);
  padding: clamp(20px, 3vw, 32px);
}
.page-home .service__ask h3 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.4;
}
.page-home .service__ask p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--home-body);
}
.page-home .service__note {
  color: var(--celadon);
  font-size: 12px;
  letter-spacing: .04em;
}
.page-home .service__ask .btn {
  margin-top: 6px;
  background: var(--copper);
  border-color: var(--copper);
  color: var(--ink-deep);
}
.page-home .service__ask .btn:hover {
  background: var(--copper-bright);
  border-color: var(--copper-bright);
}

/* ---------- responsive ---------- */
@media (min-width: 620px) {
  .page-home .cover__rail-list {
    grid-template-columns: 1fr 1fr;
    column-gap: 20px;
  }
  .page-home .fav-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .cover__inner {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 4vw, 64px);
  }
  .page-home .cover__rail {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 20px;
  }
  .page-home .cover__rail-list {
    grid-template-columns: 1fr;
  }
  .page-home .nav-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
  .page-home .nav-split__figure {
    margin-top: 10px;
  }
  .page-home .version__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-home .version__figure {
    margin-top: 6px;
  }
  .page-home .fav-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
  .page-home .fav-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .support__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-home .service__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 1120px) {
  .page-home .cover__title {
    font-size: clamp(46px, 5vw, 70px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .index-row,
  .page-home .index-row__arrow,
  .page-home .support-row,
  .page-home .fav-item,
  .page-home .btn,
  .page-home .cover__rail-list a {
    transition: none;
  }
  .page-home .index-row:hover .index-row__arrow {
    transform: none;
  }
}
<<<END>>>