.page-home {
  --home-rail: 172px;
  --home-line: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: clip;
}

.page-home img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-home .home-link {
  color: var(--bronze);
  text-decoration: none;
  box-shadow: inset 0 -2px 0 var(--gold-light);
  transition: box-shadow 0.2s var(--ease), color 0.2s var(--ease);
}

.page-home .home-link:hover,
.page-home .home-link:focus-visible {
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--gold);
}

/* ---------- 声明区 ---------- */
.page-home .home-statement {
  padding: clamp(40px, 6vw, 84px) 0 0;
}

.page-home .home-statement__inner {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: end;
}

.page-home .home-statement__copy {
  max-width: 46ch;
}

.page-home .home-statement__title {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-home .home-em {
  font-style: normal;
  box-shadow: inset 0 -3px 0 var(--gold);
}

.page-home .home-statement__lede {
  margin: 22px 0 0;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--ink);
}

.page-home .home-statement__lede--soft {
  color: var(--jade);
  margin-top: 12px;
}

.page-home .home-statement__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

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

.page-home .home-statement__figure .tb-figure__frame {
  aspect-ratio: 8 / 5;
  overflow: hidden;
  border: var(--home-line);
}

.page-home .home-statement__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 四行目录 ---------- */
.page-home .home-index {
  margin-top: clamp(40px, 6vw, 80px);
  border-top: 1px solid var(--rule-strong);
}

.page-home .home-index__row {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  align-items: baseline;
  gap: 4px 14px;
  padding: 18px 2px;
  border-bottom: var(--home-line);
  text-decoration: none;
  color: inherit;
}

.page-home .home-index__num {
  font-family: var(--serif);
  font-size: 0.875rem;
  color: var(--bronze-mist);
  font-variant-numeric: tabular-nums;
  transition: color 0.22s var(--ease);
}

.page-home .home-index__name {
  position: relative;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  align-self: center;
}

.page-home .home-index__name::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--bronze);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s var(--ease);
}

.page-home .home-index__desc {
  grid-column: 2;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--jade);
}

.page-home .home-index__row:hover .home-index__num,
.page-home .home-index__row:focus-visible .home-index__num {
  color: var(--bronze);
}

.page-home .home-index__row:hover .home-index__name::after,
.page-home .home-index__row:focus-visible .home-index__name::after {
  transform: scaleX(1);
}

/* ---------- 画布与章节 ---------- */
.page-home .home-canvas {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  padding-top: clamp(44px, 6vw, 88px);
}

.page-home .home-rail {
  order: -1;
  padding-bottom: 24px;
}

.page-home .home-rail__label {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rust);
}

.page-home .home-rail__list {
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0 0 12px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: var(--home-line);
}

.page-home .home-rail__list::-webkit-scrollbar {
  display: none;
}

.page-home .home-rail__list a {
  display: block;
  white-space: nowrap;
  font-size: 0.875rem;
  color: var(--jade);
  text-decoration: none;
}

.page-home .home-rail__list a:hover,
.page-home .home-rail__list a:focus-visible {
  color: var(--bronze);
}

.page-home .home-chapter {
  padding: clamp(36px, 5vw, 68px) 0;
  border-top: 1px solid var(--rule-strong);
  scroll-margin-top: calc(var(--head-h) + 20px);
  position: relative;
}

.page-home .home-flow > .home-chapter:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-home .home-chapter__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.page-home .home-chapter__num {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  line-height: 1;
  color: var(--bronze-mist);
  font-variant-numeric: tabular-nums;
  flex: none;
}

.page-home .home-chapter__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-home .home-chapter__lede {
  margin: 0 0 26px;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--jade);
}

/* ---------- 会员 ---------- */
.page-home .home-membership {
  display: grid;
  gap: 28px;
}

.page-home .home-membership__text {
  min-width: 0;
}

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

.page-home .home-membership__figure .tb-figure__frame {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: var(--home-line);
}

.page-home .home-membership__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .home-tiers {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-tiers__item {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: var(--home-line);
}

.page-home .home-tiers__item:last-child {
  border-bottom: var(--home-line);
}

.page-home .home-tiers__name {
  font-family: var(--serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--bronze);
}

.page-home .home-tiers__desc {
  font-size: 0.9688rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-home .home-membership__more {
  margin: 20px 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--jade);
}

/* ---------- 跨栏横图 ---------- */
.page-home .home-band {
  margin: clamp(28px, 4vw, 44px) 0;
}

.page-home .home-band .tb-figure__frame {
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border: var(--home-line);
}

.page-home .home-band img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .home-band .tb-figure__caption {
  margin-top: 10px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--rust);
}

/* ---------- 服务三栏 ---------- */
.page-home .home-triple {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border-top: var(--home-line);
  border-bottom: var(--home-line);
  margin-bottom: 34px;
}

.page-home .home-triple__col {
  background: var(--paper);
  padding: 22px 18px 24px;
}

.page-home .home-triple__title {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-home .home-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-home .home-list li {
  position: relative;
  padding-left: 16px;
}

.page-home .home-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 8px;
  height: 1px;
  background: var(--bronze);
}

.page-home .home-triple__note {
  margin: 0 0 16px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--jade);
}

.page-home .home-steps__title {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-home .home-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: home-step;
  display: grid;
  gap: 2px;
}

.page-home .home-steps li {
  counter-increment: home-step;
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 4px 10px;
  padding: 12px 0;
  border-top: var(--home-line);
}

.page-home .home-steps li:last-child {
  border-bottom: var(--home-line);
}

.page-home .home-steps li::before {
  content: "0" counter(home-step);
  font-family: var(--serif);
  font-size: 0.875rem;
  color: var(--bronze);
  font-variant-numeric: tabular-nums;
  line-height: 1.9;
}

.page-home .home-steps__name {
  font-weight: 600;
  font-size: 0.9688rem;
}

.page-home .home-steps__note {
  grid-column: 2;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--jade);
}

/* ---------- 切换面板 ---------- */
.page-home .home-switcher {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.page-home .home-switcher__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.page-home .home-switcher__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.13;
}

.page-home .home-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(230px, 78%);
  gap: 0;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 14px;
  -webkit-overflow-scrolling: touch;
  border-top: var(--home-line);
}

.page-home .home-track:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 6px;
}

.page-home .home-track::-webkit-scrollbar {
  height: 4px;
}

.page-home .home-track::-webkit-scrollbar-thumb {
  background: var(--bronze-mist);
}

.page-home .home-track__item {
  scroll-snap-align: start;
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 168px;
  padding: 22px 20px 24px;
  border-right: var(--home-line);
  text-decoration: none;
  color: inherit;
  background: rgba(246, 241, 231, 0.55);
  transition: background 0.22s var(--ease);
}

.page-home .home-track__item:hover,
.page-home .home-track__item:focus-visible {
  background: var(--gold-light);
}

.page-home .home-track__kicker {
  font-family: var(--serif);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--rust);
}

.page-home .home-track__name {
  font-family: var(--serif);
  font-size: 1.1875rem;
  font-weight: 600;
}

.page-home .home-track__note {
  font-size: 0.9063rem;
  line-height: 1.75;
  color: var(--jade);
}

/* ---------- 更新目录 ---------- */
.page-home .home-journal {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule-strong);
}

.page-home .home-journal__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 16px;
  padding: 16px 0;
  border-bottom: var(--home-line);
  align-items: baseline;
}

.page-home .home-journal__no {
  order: 1;
  grid-column: 1;
  font-family: var(--serif);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--bronze);
  font-variant-numeric: tabular-nums;
}

.page-home .home-journal__title {
  order: 2;
  grid-column: 1;
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  text-decoration: none;
  box-shadow: inset 0 -1px 0 transparent;
  transition: box-shadow 0.2s var(--ease);
}

.page-home .home-journal__title:hover,
.page-home .home-journal__title:focus-visible {
  box-shadow: inset 0 -2px 0 var(--bronze);
}

.page-home .home-journal__tag {
  order: 3;
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--rust);
  border: 1px solid var(--rule-strong);
  padding: 3px 9px;
  white-space: nowrap;
}

/* ---------- 帮助 ---------- */
.page-home .home-help {
  display: grid;
  gap: 24px;
}

.page-home .home-help__col {
  padding: 22px 18px;
  border: var(--home-line);
}

.page-home .home-help__col--mist {
  background: var(--bronze-mist);
  border-color: transparent;
}

.page-home .home-help__title {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 600;
}

.page-home .home-help__note {
  margin: 0 0 14px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-home .home-help__cats {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-home .home-help__cats li {
  border-bottom: 1px solid rgba(18, 33, 28, 0.18);
  padding-bottom: 6px;
}

.page-home .home-faq {
  border-bottom: var(--home-line);
  padding: 12px 0;
}

.page-home .home-faq summary {
  cursor: pointer;
  font-size: 0.9688rem;
  font-weight: 600;
  line-height: 1.65;
  list-style: none;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

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

.page-home .home-faq summary::before {
  content: "＋";
  color: var(--bronze);
  font-size: 0.875rem;
  flex: none;
}

.page-home .home-faq[open] summary::before {
  content: "－";
}

.page-home .home-faq p {
  margin: 10px 0 0 22px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--jade);
}

/* ---------- 收藏提示 ---------- */
.page-home .home-save {
  margin: clamp(36px, 5vw, 64px) 0 clamp(48px, 7vw, 88px);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--rule-strong);
  background: var(--paper-shadow);
  box-shadow: 0 1px 0 rgba(107, 74, 47, 0.06);
}

.page-home .home-save__title {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.2vw, 1.625rem);
}

.page-home .home-save__text {
  margin: 0 0 16px;
  max-width: 52ch;
  font-size: 0.9688rem;
  line-height: 1.85;
  color: var(--ink);
}

.page-home .home-save__steps {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--jade);
}

.page-home .home-save__steps summary {
  cursor: pointer;
  color: var(--bronze);
  list-style: none;
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

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

.page-home .home-save__steps summary::before {
  content: "";
  width: 16px;
  height: 1px;
  background: var(--bronze);
  transition: width 0.2s var(--ease);
}

.page-home .home-save__steps summary:hover::before,
.page-home .home-save__steps summary:focus-visible::before {
  width: 28px;
}

.page-home .home-save__steps p {
  margin: 12px 0 0;
}

/* ---------- 中屏及以上 ---------- */
@media (min-width: 720px) {
  .page-home .home-index__row {
    grid-template-columns: 3rem minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: baseline;
    padding: 20px 2px;
  }

  .page-home .home-index__desc {
    grid-column: 3;
    text-align: right;
  }

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

  .page-home .home-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-home .home-track {
    grid-auto-columns: minmax(220px, 1fr);
  }

  .page-home .home-help {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--rule);
  }

  .page-home .home-help__col {
    border: 0;
  }
}

/* ---------- 桌面：非对称画布 + 右侧章节索引 ---------- */
@media (min-width: 1000px) {
  .page-home .home-statement__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-home .home-canvas {
    grid-template-columns: minmax(0, 1fr) var(--home-rail);
    gap: clamp(36px, 4vw, 64px);
    align-items: start;
  }

  .page-home .home-rail {
    order: 0;
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: calc(var(--head-h) + 28px);
    padding-bottom: 0;
  }

  .page-home .home-rail__list {
    display: grid;
    gap: 10px;
    overflow: visible;
    padding-bottom: 0;
    border-bottom: 0;
    border-left: var(--home-line);
    padding-left: 16px;
  }

  .page-home .home-flow {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }

  .page-home .home-membership {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: clamp(28px, 3vw, 44px);
    align-items: start;
  }

  .page-home .home-triple__col {
    padding: 26px 24px 28px;
  }

  .page-home .home-journal__row {
    grid-template-columns: 5.5rem minmax(0, 1fr) auto;
  }

  .page-home .home-journal__no {
    grid-column: 1;
    grid-row: 1;
    order: 0;
  }

  .page-home .home-journal__title {
    grid-column: 2;
    grid-row: 1;
    order: 0;
  }

  .page-home .home-journal__tag {
    grid-column: 3;
    grid-row: 1;
    order: 0;
  }
}

/* ---------- 动效克制 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .home-index__name::after,
  .page-home .home-index__num,
  .page-home .home-track__item,
  .page-home .home-save__steps summary::before {
    transition: none;
  }
}
<<<END>>>