.page-home {
  --home-plate: rgba(181, 58, 45, 0.07);
  --home-plate-2: rgba(217, 164, 65, 0.22);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-home .reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: var(--progress, 0%);
  background: var(--cinnabar);
  z-index: 70;
  transition: width 90ms linear;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + 28px);
  padding-bottom: 32px;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 62%;
  background: linear-gradient(135deg, var(--home-plate), var(--home-plate-2));
  clip-path: polygon(0 0, 100% 0, 100% 74%, 0 100%);
  pointer-events: none;
}

.page-home .hero__seal {
  display: none;
  position: absolute;
  top: 112px;
  right: 3vw;
  writing-mode: vertical-rl;
  font-family: var(--font-title);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5em;
  color: rgba(181, 58, 45, 0.6);
  border: 1px solid rgba(181, 58, 45, 0.38);
  padding: 16px 8px;
  background: rgba(255, 249, 239, 0.45);
}

.page-home .hero__top {
  position: relative;
  display: grid;
  gap: 26px;
}

.page-home .hero__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
}

.page-home .hero__place {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--umber);
}

.page-home .hero__title {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-size: clamp(2.5rem, 9.5vw, 5.2rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-home .hero__title em {
  font-style: normal;
  color: var(--cinnabar);
  box-shadow: inset 0 -0.18em 0 var(--gold-pale);
}

.page-home .hero__intro {
  margin: 0 0 24px;
  max-width: 34em;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-home .hero__meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  background: var(--card);
  border: var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 rgba(217, 164, 65, 0.35);
}

.page-home .version-plate {
  display: flex;
  flex-direction: column;
  gap: 2px;
  cursor: help;
}

.page-home .version-plate__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--umber);
}

.page-home .version-plate__value {
  font-family: var(--font-mono);
  font-size: 2rem;
  line-height: 1.1;
  color: var(--cinnabar);
}

.page-home .version-plate__note {
  font-size: 13px;
  color: var(--umber);
}

.page-home .version-note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(122, 75, 50, 0.45);
  font-size: 12px;
  line-height: 1.7;
  color: var(--umber);
}

.page-home .hero__chapters {
  position: relative;
  margin-top: 34px;
}

.page-home .chapters-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--umber);
}

.page-home .chapter-cards {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .chapter-card {
  position: relative;
  display: block;
  padding: 16px 18px 20px;
  background: var(--card);
  border: var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink);
  text-decoration: none;
  box-shadow: 4px 4px 0 rgba(43, 31, 26, 0.08);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-home .chapter-card:hover,
.page-home .chapter-card:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(181, 58, 45, 0.28);
  border-color: var(--cinnabar);
}

.page-home .chapter-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-home .chapter-card__title {
  display: block;
  margin: 6px 0 6px;
  font-family: var(--font-title);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
}

.page-home .chapter-card__desc {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  color: var(--umber);
}

.page-home .chapter-card__arrow {
  position: absolute;
  right: 16px;
  bottom: 14px;
  font-size: 15px;
  color: var(--cinnabar);
}

.page-home .index-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 28px;
  padding: 10px 0;
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-home .index-bar__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cinnabar);
}

.page-home .index-bar__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-home .index-bar__list a {
  display: block;
  padding: 5px 12px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid rgba(122, 75, 50, 0.4);
  border-radius: 999px;
  background: rgba(255, 249, 239, 0.7);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-home .index-bar__list a:hover,
.page-home .index-bar__list a:focus-visible {
  background: var(--cinnabar);
  color: var(--card);
  border-color: var(--cinnabar);
}

/* ---------- 章节通用 ---------- */
.page-home .section {
  padding: 56px 0;
}

.page-home .chapter-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-home .chapter-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-home .chapter-rule {
  display: block;
  width: 34px;
  height: 2px;
  background: var(--cinnabar);
}

.page-home .chapter-title {
  margin: 0 0 16px;
  font-family: var(--font-title);
  font-size: clamp(1.6rem, 5.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: 0.03em;
}

/* ---------- 会客厅 ---------- */
.page-home .visit__text p {
  margin: 0 0 14px;
  font-size: 1rem;
  line-height: 1.85;
}

.page-home .visit__lead {
  font-size: 1.05rem;
  color: var(--ink);
}

.page-home .visit__facts {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 2px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  background: rgba(122, 75, 50, 0.22);
  border: var(--line-strong);
}

.page-home .visit__facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  background: var(--card);
}

.page-home .fact-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cinnabar);
  line-height: 1;
}

.page-home .fact-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--umber);
}

.page-home .visit__figure {
  margin: 26px 0 0;
  border: var(--line-strong);
  background: var(--card);
  padding: 10px;
  box-shadow: 8px 8px 0 rgba(217, 164, 65, 0.28);
}

.page-home .visit__figure img,
.page-home .services__figure img,
.page-home .start__figures img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-home .visit__figure img {
  aspect-ratio: 16 / 10;
}

.page-home .media-caption {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--umber);
}

/* ---------- 产品与服务 ---------- */
.page-home .services__lead,
.page-home .start__lead,
.page-home .news__lead {
  margin: 0 0 20px;
  max-width: 40em;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--umber);
}

.page-home .index-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-home .index-tag {
  padding: 7px 15px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--ink);
  background: transparent;
  border: 1px solid rgba(122, 75, 50, 0.45);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-home .index-tag:hover {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.page-home .index-tag[aria-pressed="true"] {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--card);
}

.page-home .services__grid {
  display: grid;
  gap: 14px;
}

.page-home .service-card {
  position: relative;
  padding: 20px 18px 22px;
  background: var(--card);
  border: var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 5px 5px 0 rgba(43, 31, 26, 0.07);
}

.page-home .service-card[hidden] {
  display: none;
}

.page-home .service-card h3 {
  margin: 12px 0 8px;
  font-family: var(--font-title);
  font-size: 1.15rem;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.page-home .service-card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--umber);
}

.page-home .service-card__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-home .service-card__link:hover {
  color: var(--ink);
}

.page-home .service-card--a {
  border-left: 5px solid var(--cinnabar);
}

.page-home .service-card--b {
  background: var(--gold-pale);
  border-color: rgba(122, 75, 50, 0.5);
}

.page-home .service-card--b p {
  color: #5B3A26;
}

.page-home .service-card--c {
  background: rgba(201, 211, 197, 0.55);
}

.page-home .service-card--d {
  background: var(--ink);
  color: var(--paper);
}

.page-home .service-card--d h3 {
  color: var(--gold-pale);
}

.page-home .service-card--d p {
  color: rgba(247, 240, 227, 0.82);
}

.page-home .service-card--d .service-card__link {
  color: var(--gold-pale);
}

.page-home .service-card--e {
  border-right: 5px solid var(--gold);
}

.page-home .services__figure {
  margin: 0;
  padding: 10px;
  background: var(--card);
  border: var(--line-strong);
  border-radius: var(--radius);
}

.page-home .services__figure img {
  aspect-ratio: 14 / 10;
}

/* ---------- 首次访问 ---------- */
.page-home .start__steps {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
  background: rgba(122, 75, 50, 0.2);
  border-top: var(--line-strong);
  border-bottom: var(--line-strong);
}

.page-home .start-step {
  display: flex;
  gap: 14px;
  padding: 18px 16px;
  background: var(--paper);
}

.page-home .start-step__num {
  flex: none;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--card);
  background: var(--celadon-deep);
  border-radius: 50%;
}

.page-home .start-step h3 {
  margin: 0 0 6px;
  font-family: var(--font-title);
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}

.page-home .start-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--umber);
}

.page-home .start-step__link {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-home .start__figures {
  display: grid;
  gap: 16px;
}

.page-home .start__figures .media-frame {
  margin: 0;
  padding: 10px;
  background: var(--card);
  border: var(--line-strong);
  border-radius: var(--radius);
}

.page-home .start__figures img {
  aspect-ratio: 3 / 2;
}

.page-home .start__figures .media-frame--tall {
  transform: rotate(-1.2deg);
  box-shadow: 7px 7px 0 rgba(181, 58, 45, 0.16);
}

/* ---------- 动态 ---------- */
.page-home .timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-home .timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: rgba(217, 164, 65, 0.75);
}

.page-home .timeline-item {
  position: relative;
  padding-bottom: 22px;
}

.page-home .timeline-dot {
  position: absolute;
  left: -26px;
  top: 8px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 1px var(--gold);
}

.page-home .timeline-dot.is-current {
  background: var(--orange);
  box-shadow: 0 0 0 1px var(--orange), 0 0 0 5px rgba(229, 107, 63, 0.18);
}

.page-home .timeline-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
}

.page-home .timeline-item__time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--umber);
}

.page-home .timeline-item h3 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-size: 1.05rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.page-home .fold-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--celadon-deep);
  cursor: pointer;
  list-style: none;
}

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

.page-home .fold-trigger::after {
  content: "+";
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 13px;
  line-height: 1;
}

.page-home .fold-panel[open] .fold-trigger::after {
  content: "−";
  background: var(--celadon-deep);
  color: var(--paper);
}

.page-home .fold-body {
  margin-top: 10px;
  padding: 12px 14px;
  background: var(--card);
  border-left: 3px solid var(--gold);
}

.page-home .fold-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--umber);
}

.page-home .news__more {
  margin: 8px 0 0;
}

/* ---------- 联系 ---------- */
.page-home .contact-block {
  background: var(--ink);
  color: var(--paper);
}

.page-home .contact-block__grid {
  display: grid;
  gap: 26px;
}

.page-home .contact-block .chapter-num {
  color: var(--gold);
}

.page-home .contact-block .chapter-title {
  color: var(--paper);
}

.page-home .contact-block__text p {
  margin: 0 0 14px;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(247, 240, 227, 0.86);
}

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

.page-home .contact-block__prep li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 240, 227, 0.9);
}

.page-home .contact-block__prep li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--cinnabar);
  transform: rotate(45deg);
}

.page-home .contact-block__card {
  padding: 22px 18px;
  background: var(--card);
  color: var(--ink);
  border-radius: var(--radius);
  box-shadow: 8px 8px 0 rgba(181, 58, 45, 0.4);
}

.page-home .contact-block__card-title {
  margin: 0 0 16px;
  font-family: var(--font-title);
  font-size: 1.1rem;
  letter-spacing: 0.03em;
}

.page-home .contact-block__list {
  margin: 0 0 20px;
  display: grid;
  gap: 14px;
}

.page-home .contact-block__row {
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(122, 75, 50, 0.4);
}

.page-home .contact-block__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-home .contact-block__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--umber);
  margin-bottom: 4px;
}

.page-home .contact-block__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  word-break: break-word;
}

.page-home .contact-block__row dd a {
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-home .contact-block__hint {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--umber);
}

.page-home .back-to-top {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 50;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--card);
  background: var(--cinnabar);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease);
}

.page-home .back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-home .hero {
    padding-top: calc(var(--header-h) + 44px);
    padding-bottom: 44px;
  }

  .page-home .chapter-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

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

  .page-home .visit__facts li {
    flex-direction: column;
    gap: 6px;
  }

  .page-home .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-home .services__figure {
    grid-column: span 2;
  }

  .page-home .start__figures {
    grid-template-columns: repeat(2, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-home .section {
    padding: 76px 0;
  }

  .page-home .hero__seal {
    display: block;
  }

  .page-home .hero__top {
    grid-template-columns: minmax(0, 1fr) 250px;
    align-items: start;
    gap: 40px;
  }

  .page-home .hero__meta {
    margin-top: 8px;
  }

  .page-home .hero__chapters {
    margin-top: 46px;
  }

  .page-home .chapter-cards {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-home .index-bar {
    margin-top: 34px;
  }

  .page-home .visit__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: start;
  }

  .page-home .visit__figure {
    margin-top: 4px;
  }

  .page-home .services__grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }

  .page-home .service-card--a {
    grid-column: span 3;
  }

  .page-home .service-card--b {
    grid-column: span 3;
  }

  .page-home .services__figure {
    grid-column: span 6;
    margin: 4px 0;
  }

  .page-home .service-card--c {
    grid-column: span 2;
  }

  .page-home .service-card--d {
    grid-column: span 2;
  }

  .page-home .service-card--e {
    grid-column: span 2;
  }

  .page-home .start__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 44px;
    align-items: start;
  }

  .page-home .start__figures {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .page-home .contact-block__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    gap: 52px;
    align-items: start;
  }

  .page-home .back-to-top {
    right: 28px;
    bottom: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .chapter-card,
  .page-home .start__figures .media-frame--tall {
    transition: none;
    transform: none;
  }

  .page-home .chapter-card:hover,
  .page-home .chapter-card:focus-visible {
    transform: none;
  }
}

.page-home {
  --progress: 1rem;
}