.page-home {
  --home-tick: 20px;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* ---------- 首屏框景 ---------- */
.page-home .home-hero {
  position: relative;
  padding: clamp(1rem, 2.6vw, 2rem) 0 clamp(1.6rem, 3.4vw, 2.8rem);
}
.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(58% 46% at 50% 0%, rgba(201, 161, 91, .16), transparent 72%);
}
.page-home .hero-frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(25, 21, 18, .94), rgba(15, 13, 11, .97));
  padding: clamp(1.8rem, 5vw, 4.2rem) clamp(1.05rem, 4vw, 3.4rem);
}
.page-home .hero-frame__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  z-index: -2;
  filter: grayscale(.3) saturate(.85);
}
.page-home .hero-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(15, 13, 11, .5), rgba(15, 13, 11, .92) 72%);
}
.page-home .tick {
  position: absolute;
  width: var(--home-tick);
  height: var(--home-tick);
  border: 0 solid var(--bronze);
  z-index: 2;
}
.page-home .tick--tl { top: 9px; left: 9px; border-top-width: 2px; border-left-width: 2px; }
.page-home .tick--tr { top: 9px; right: 9px; border-top-width: 2px; border-right-width: 2px; }
.page-home .tick--bl { bottom: 9px; left: 9px; border-bottom-width: 2px; border-left-width: 2px; }
.page-home .tick--br { bottom: 9px; right: 9px; border-bottom-width: 2px; border-right-width: 2px; }

.page-home .hero-frame__inner {
  position: relative;
  max-width: 940px;
  margin: 0 auto;
  text-align: center;
}
.page-home .hero-eyebrow {
  margin: 0 0 clamp(.9rem, 2vw, 1.4rem);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--bronze);
}
.page-home .hero-title {
  margin: 0;
  font-family: var(--font-serif);
}
.page-home .hero-title__big {
  display: block;
  font-size: clamp(4.4rem, 21vw, 11rem);
  line-height: .86;
  font-weight: 900;
  letter-spacing: .08em;
  margin-left: .08em;
  color: var(--paper);
  text-shadow: 0 18px 40px rgba(0, 0, 0, .55);
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-home .hero-title__big {
    background: linear-gradient(178deg, var(--paper) 26%, var(--bronze) 116%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
  }
}
.page-home .hero-title__small {
  display: block;
  margin-top: clamp(.85rem, 2vw, 1.3rem);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(.95rem, 2.2vw, 1.18rem);
  letter-spacing: .05em;
  color: var(--paper);
  opacity: .82;
}
.page-home .hero-lede {
  max-width: 60ch;
  margin: clamp(1rem, 2.4vw, 1.5rem) auto 0;
  font-size: clamp(.94rem, 1.6vw, 1.05rem);
  line-height: 1.85;
  color: var(--text-dim);
}
.page-home .hero-version {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .55rem .7rem;
  margin-top: clamp(1.3rem, 3vw, 1.9rem);
  padding: .55rem .95rem;
  border: 1px solid var(--line);
  background: rgba(15, 13, 11, .72);
  font-size: .76rem;
}
.page-home .hero-version__dot {
  width: 8px;
  height: 8px;
  background: var(--cinnabar);
  box-shadow: 0 0 0 3px rgba(201, 72, 50, .16);
}
.page-home .hero-version__label {
  letter-spacing: .12em;
  color: var(--text-dim);
}
.page-home .hero-version__no {
  font-size: 1.12rem;
  letter-spacing: .12em;
  color: var(--bronze-bright);
}
.page-home .hero-version__state {
  padding-left: .7rem;
  border-left: 1px solid var(--line-soft);
  color: var(--bronze);
  letter-spacing: .1em;
}
.page-home .hero-version__copy {
  margin-left: .3rem;
  padding: .3rem .65rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--bronze-bright);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background var(--dur), border-color var(--dur), color var(--dur);
}
.page-home .hero-version__copy:hover,
.page-home .hero-version__copy:focus-visible {
  background: rgba(201, 161, 91, .14);
  border-color: var(--bronze);
}
.page-home .hero-version__copy[data-copied] {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}
.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .7rem .9rem;
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

/* ---------- 规模条 ---------- */
.page-home .home-figures {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: var(--ink-deep);
}
.page-home .home-figures__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
}
.page-home .home-figures__item {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  padding: clamp(1rem, 2.4vw, 1.5rem) clamp(.8rem, 2vw, 1.5rem);
  background: var(--ink-deep);
}
.page-home .fig-num {
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  line-height: 1;
  color: var(--bronze-bright);
}
.page-home .fig-unit {
  margin-left: .12em;
  font-size: .56em;
  color: var(--bronze);
}
.page-home .fig-label {
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--text-dim);
}

/* ---------- 主体栅格 ---------- */
.page-home .home-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.4rem, 3vw, 2.2rem);
  padding-top: clamp(2.2rem, 4.5vw, 3.6rem);
  padding-bottom: clamp(2.6rem, 5vw, 4.4rem);
}
.page-home .home-aside {
  border-top: 1px solid var(--line);
  padding-top: .9rem;
}
.page-home .home-aside__title {
  margin: 0;
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--cinnabar);
}
.page-home .home-toc {
  list-style: none;
  margin: .7rem 0 0;
  padding: 0;
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-home .home-toc::-webkit-scrollbar { display: none; }
.page-home .home-toc__link {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: .4rem .7rem;
  border: 1px solid var(--line-soft);
  color: var(--text-dim);
  font-size: .82rem;
  text-decoration: none;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}
.page-home .home-toc__link:hover,
.page-home .home-toc__link:focus-visible {
  color: var(--bronze-bright);
  border-color: var(--line);
}
.page-home .home-toc__link[aria-current] {
  color: var(--bronze-bright);
  border-color: var(--cinnabar);
  background: rgba(201, 72, 50, .1);
}
.page-home .home-aside__cta {
  display: inline-block;
  margin-top: 1rem;
  font-size: .84rem;
  letter-spacing: .06em;
  color: var(--bronze);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: .15rem;
}
.page-home .home-aside__cta:hover { color: var(--bronze-bright); }

/* ---------- 章节通用 ---------- */
.page-home .home-sec + .home-sec {
  margin-top: clamp(2.4rem, 5vw, 4rem);
  padding-top: clamp(1.8rem, 4vw, 3rem);
  border-top: 1px solid var(--line-soft);
}
.page-home .home-sec__eyebrow {
  margin: 0 0 .5rem;
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--cinnabar);
}
.page-home .home-sec__head h2 {
  margin: 0 0 .7rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.22;
  color: var(--paper);
  letter-spacing: .01em;
}
.page-home .home-sec__lede {
  max-width: 58ch;
  margin: 0;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 概览仪表板 ---------- */
.page-home .home-overview {
  display: grid;
  gap: clamp(1.2rem, 2.6vw, 2rem);
  margin-top: clamp(1.2rem, 2.6vw, 1.8rem);
}
.page-home .home-overview__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .65rem;
  counter-reset: ov;
}
.page-home .ov-card {
  counter-increment: ov;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .85rem;
  padding: .95rem 1rem;
  background: rgba(43, 37, 32, .72);
  border-left: 2px solid var(--line);
  transition: border-color var(--dur), background var(--dur);
}
.page-home .ov-card::before {
  content: counter(ov, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--stone);
  padding-top: .3rem;
}
.page-home .ov-card:hover,
.page-home .ov-card:focus-within {
  border-left-color: var(--bronze);
  background: rgba(43, 37, 32, 1);
}
.page-home .ov-card__body { min-width: 0; }
.page-home .ov-card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.12rem;
  line-height: 1.4;
}
.page-home .ov-card__title a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur), border-color var(--dur);
}
.page-home .ov-card__title a:hover,
.page-home .ov-card__title a:focus-visible {
  color: var(--bronze-bright);
  border-bottom-color: var(--bronze);
}
.page-home .ov-card__meta {
  margin: .35rem 0 .45rem;
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--bronze);
}
.page-home .ov-card__text {
  margin: 0;
  font-size: .89rem;
  line-height: 1.72;
  color: var(--text-dim);
}
.page-home .ov-card__note {
  margin: .5rem 0 0;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--stone);
  opacity: .8;
  transition: opacity var(--dur);
}
.page-home .ov-card:hover .ov-card__note,
.page-home .ov-card:focus-within .ov-card__note { opacity: 1; }

.page-home .ov-figure,
.page-home .step-figure,
.page-home .ct-figure {
  margin: 0;
}
.page-home .ov-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border: 1px solid var(--line-soft);
  filter: saturate(.85);
}
.page-home .ov-figure figcaption,
.page-home .step-figure figcaption,
.page-home .ct-figure figcaption {
  padding-top: .6rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ---------- 三步路径 ---------- */
.page-home .home-route {
  display: grid;
  gap: clamp(1.3rem, 3vw, 2.2rem);
  margin-top: clamp(1.2rem, 2.6vw, 1.8rem);
}
.page-home .home-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-home .step {
  position: relative;
  padding: .2rem 0 1.4rem 1.3rem;
  border-left: 1px solid var(--line);
}
.page-home .step:last-child { padding-bottom: .2rem; }
.page-home .step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: .45rem;
  width: 7px;
  height: 7px;
  background: var(--cinnabar);
}
.page-home .step__no {
  margin: 0;
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--cinnabar);
}
.page-home .step__title {
  margin: .35rem 0 .45rem;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 1.4;
  color: var(--paper);
}
.page-home .step__text {
  margin: 0 0 .55rem;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--text-dim);
}
.page-home .step__link {
  display: inline-block;
  font-size: .84rem;
  letter-spacing: .05em;
  color: var(--bronze);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: .1rem;
  transition: color var(--dur), border-color var(--dur);
}
.page-home .step__link:hover,
.page-home .step__link:focus-visible {
  color: var(--bronze-bright);
  border-bottom-color: var(--bronze-bright);
}
.page-home .step-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line-soft);
}

/* ---------- 档案摘要 ---------- */
.page-home .arc-list {
  list-style: none;
  margin: clamp(1.1rem, 2.4vw, 1.6rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}
.page-home .arc-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .35rem .8rem;
  padding: 1rem .1rem;
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--dur);
}
.page-home .arc-item:hover { background: rgba(43, 37, 32, .5); }
.page-home .arc-date {
  grid-column: 1 / -1;
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--stone);
}
.page-home .arc-body { min-width: 0; }
.page-home .arc-title {
  font-family: var(--font-serif);
  font-size: 1.04rem;
  line-height: 1.5;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur), border-color var(--dur);
}
.page-home .arc-title:hover,
.page-home .arc-title:focus-visible {
  color: var(--bronze-bright);
  border-bottom-color: var(--bronze);
}
.page-home .arc-desc {
  margin: .35rem 0 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--text-dim);
}
.page-home .arc-item .wd-tag { justify-self: start; align-self: start; }
.page-home .arc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: clamp(1.1rem, 2.4vw, 1.6rem);
}

/* ---------- 联系 ---------- */
.page-home .home-contact__grid {
  display: grid;
  gap: clamp(1.3rem, 3vw, 2rem);
  margin-top: clamp(1.2rem, 2.6vw, 1.8rem);
}
.page-home .ct-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}
.page-home .ct-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem .8rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.page-home .ct-item__label {
  flex: 0 0 auto;
  min-width: 4.8rem;
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--bronze);
}
.page-home .ct-item__value {
  flex: 1 1 12rem;
  min-width: 0;
  font-size: .92rem;
  line-height: 1.65;
  color: var(--paper);
  word-break: break-word;
}
.page-home .ct-item__copy {
  flex: 0 0 auto;
  padding: .28rem .6rem;
  border: 1px solid var(--line-soft);
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}
.page-home .ct-item__copy:hover,
.page-home .ct-item__copy:focus-visible {
  color: var(--bronze-bright);
  border-color: var(--bronze);
  background: rgba(201, 161, 91, .12);
}
.page-home .ct-item__copy[data-copied] {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}
.page-home .ct-note {
  margin: .9rem 0 0;
  font-size: .85rem;
  line-height: 1.8;
  color: var(--text-dim);
}
.page-home .ct-note a {
  color: var(--bronze);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}
.page-home .ct-note a:hover { color: var(--bronze-bright); }
.page-home .ct-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.1rem;
}
.page-home .ct-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line-soft);
  filter: saturate(.85);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .arc-item {
    grid-template-columns: 8.5rem minmax(0, 1fr) auto;
    align-items: start;
  }
  .page-home .arc-date {
    grid-column: auto;
    padding-top: .28rem;
  }
}

@media (min-width: 820px) {
  .page-home .home-figures__list { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .home-overview { grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr); align-items: start; }
  .page-home .home-contact__grid { grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); align-items: start; }
}

@media (min-width: 900px) {
  .page-home .home-route { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); align-items: start; }
}

@media (min-width: 980px) {
  .page-home .home-body {
    grid-template-columns: minmax(0, .92fr) minmax(0, 3fr);
    gap: clamp(2rem, 3.6vw, 3.2rem);
    align-items: start;
  }
  .page-home .home-aside {
    position: sticky;
    top: 92px;
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: .2rem 0 0 1.1rem;
  }
  .page-home .home-toc {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    margin-top: .9rem;
  }
  .page-home .home-toc__link {
    width: 100%;
    padding: .45rem 0 .45rem .8rem;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    font-size: .86rem;
  }
  .page-home .home-toc__link:hover,
  .page-home .home-toc__link:focus-visible {
    border-left-color: var(--line);
    background: transparent;
  }
  .page-home .home-toc__link[aria-current] {
    border-left-color: var(--cinnabar);
    background: transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .ov-card,
  .page-home .ov-card__note,
  .page-home .arc-item,
  .page-home .home-toc__link,
  .page-home .hero-version__copy,
  .page-home .ct-item__copy {
    transition: none;
  }
}