.page-home {
  --home-gap: clamp(1rem, 2.4vw, 1.75rem);
  --home-pad: clamp(1.15rem, 2.4vw, 1.6rem);
  background: var(--ink);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2.5rem, 7vw, 5.5rem) clamp(2.5rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(255, 107, 67, .16), transparent 62%),
    radial-gradient(90% 70% at 6% 100%, rgba(87, 227, 182, .07), transparent 66%),
    var(--ink);
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  top: -28%;
  left: -22%;
  width: 62%;
  height: 168%;
  transform: rotate(24deg);
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(255, 107, 67, .13) 34%,
    rgba(255, 211, 122, .10) 56%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 0;
}

.page-home .home-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

.page-home .home-hero__context {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .6rem;
  margin: 0 0 1rem;
  font-size: var(--step-2);
  color: var(--muted);
}

.page-home .home-hero__context-k {
  font-family: var(--font-mono);
  letter-spacing: .12em;
  color: var(--coral);
  border: 1px solid var(--line);
  padding: .22rem .55rem;
}

.page-home .home-hero__context-s {
  letter-spacing: .04em;
}

.page-home .home-hero__title {
  margin: 0 0 1.1rem;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.15rem, 6.4vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--text);
  text-wrap: balance;
}

.page-home .home-hero__lede {
  margin: 0;
  max-width: 36ch;
  font-size: var(--step-3);
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-hero__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .8rem 1rem;
  margin-top: clamp(1.5rem, 3.4vw, 2.1rem);
}

.page-home .home-hero__cta-note {
  font-size: var(--step-2);
  color: var(--muted);
  max-width: 24ch;
  line-height: 1.6;
}

.page-home .home-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1rem, 2.8vw, 2.4rem);
  margin: clamp(1.6rem, 3.6vw, 2.4rem) 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line-soft);
}

.page-home .home-hero__fact dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: .1em;
  color: var(--muted);
}

.page-home .home-hero__fact dd {
  margin: .35rem 0 0;
  font-size: var(--step-3);
  font-weight: 500;
  color: var(--coral);
}

.page-home .home-hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--ink-2), var(--ink));
  overflow: hidden;
}

.page-home .home-hero__visual::before {
  content: "";
  position: absolute;
  right: -20%;
  bottom: -32%;
  width: 86%;
  aspect-ratio: 1;
  border: 1px solid rgba(245, 175, 192, .35);
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
}

.page-home .home-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  opacity: .94;
}

.page-home .home-hero__visual-cap {
  position: absolute;
  left: 1rem;
  bottom: .9rem;
  z-index: 3;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .12em;
  color: var(--gold);
}

/* ---------- 章节公共 ---------- */
.page-home .home-block {
  padding-block: clamp(2.75rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .home-block--alt {
  background:
    linear-gradient(180deg, rgba(16, 42, 61, .85), rgba(10, 25, 38, .95)),
    var(--ink-2);
  border-top: 1px solid var(--line-soft);
}

.page-home .home-head {
  display: grid;
  gap: clamp(.9rem, 2vw, 1.5rem);
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-home .home-head__lead .section-index {
  display: block;
  margin-bottom: .65rem;
  color: var(--shell);
}

.page-home .home-head .section-title {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(1.75rem, 4.6vw, 3rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-home .home-head__aside {
  margin: 0;
  font-size: var(--step-3);
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-cat__link {
  display: inline-block;
  margin-top: .9rem;
  font-size: var(--step-2);
  color: var(--coral);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 67, .45);
  padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
}

.page-home .home-cat__link:hover,
.page-home .home-cat__link:focus-visible {
  color: var(--coral-soft);
  border-color: var(--coral-soft);
}

/* ---------- 01 分类总览 ---------- */
.page-home .home-strip {
  margin: 0 0 clamp(1.75rem, 4vw, 2.5rem);
}

.page-home .home-strip img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
}

.page-home .home-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--home-gap);
}

.page-home .home-cat {
  position: relative;
  padding: var(--home-pad);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 42, 61, .88), rgba(10, 25, 38, .96));
  transition: border-color .25s ease, transform .25s ease, background-color .25s ease;
}

.page-home .home-cat:hover {
  border-color: var(--coral);
  transform: translateY(-3px);
}

.page-home .home-cat__no {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: .14em;
  color: var(--shell);
}

.page-home .home-cat__title {
  margin: .7rem 0 .6rem;
  font-size: var(--step-4);
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
}

.page-home .home-cat__title::before {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  margin-bottom: .7rem;
  background: var(--coral);
}

.page-home .home-cat p {
  margin: 0;
  font-size: var(--step-2);
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 02 版本与指南 ---------- */
.page-home .home-updates {
  display: grid;
  gap: var(--home-gap);
}

.page-home .home-line {
  padding: clamp(1.2rem, 2.6vw, 1.9rem);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(22, 55, 79, .6), rgba(10, 25, 38, .94));
}

.page-home .home-line--version {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.6rem);
}

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

.page-home .home-line__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border: 1px solid var(--line-soft);
}

.page-home .home-line__title {
  margin: .85rem 0 .8rem;
  font-size: var(--step-4);
  font-weight: 400;
  line-height: 1.35;
  color: var(--text);
}

.page-home .home-line p {
  margin: 0 0 1rem;
  font-size: var(--step-3);
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-line__note {
  margin: 0 0 1.2rem;
  color: var(--gold);
}

.page-home .home-line__ticks {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1.1rem 0 1.3rem;
  padding: 0;
}

.page-home .home-line__ticks li {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .1em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: .34rem .65rem;
}

/* ---------- 03 访问线路 ---------- */
.page-home .home-routes {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

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

.page-home .home-route {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(.95rem, 2vw, 1.35rem) 0;
  border-top: 1px solid var(--line-soft);
  transition: background-color .25s ease;
}

.page-home .home-route:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .home-route:hover {
  background: rgba(255, 107, 67, .06);
}

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

.page-home .home-route__no {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: .14em;
  color: var(--shell);
}

.page-home .home-route__name {
  margin: .35rem 0 .35rem;
  font-size: var(--step-4);
  font-weight: 500;
  color: var(--text);
}

.page-home .home-route__desc {
  margin: 0;
  font-size: var(--step-2);
  line-height: 1.75;
  color: var(--muted);
}

.page-home .home-routes__tip {
  margin: 1.3rem 0 1.4rem;
  padding-left: .95rem;
  border-left: 2px solid var(--gold);
  font-size: var(--step-3);
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-routes__visual {
  position: relative;
  margin: 0;
}

.page-home .home-routes__visual::after {
  content: "";
  position: absolute;
  left: -14%;
  top: -12%;
  width: 58%;
  aspect-ratio: 1;
  border: 1px solid rgba(87, 227, 182, .28);
  border-radius: 50%;
  pointer-events: none;
}

.page-home .home-routes__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--line);
}

/* ---------- 04 反馈通道 ---------- */
.page-home .home-support {
  display: grid;
  gap: var(--home-gap);
}

.page-home .home-support__card {
  padding: clamp(1.2rem, 2.6vw, 1.8rem);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 42, 61, .78), rgba(10, 25, 38, .96));
}

.page-home .home-support__card--main {
  border-left: 2px solid var(--coral);
}

.page-home .home-support__title {
  margin: .85rem 0 .7rem;
  font-size: var(--step-4);
  font-weight: 500;
  color: var(--text);
}

.page-home .home-support__card--main .home-support__title {
  margin-top: 0;
}

.page-home .home-support__card p {
  margin: 0 0 1rem;
  font-size: var(--step-3);
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-support__card a:not(.btn):not(.home-cat__link) {
  color: var(--coral);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 67, .4);
}

.page-home .home-support__card a:not(.btn):not(.home-cat__link):hover {
  color: var(--coral-soft);
}

.page-home .home-support__side {
  display: grid;
  gap: var(--home-gap);
  align-content: start;
}

.page-home .home-steps {
  list-style: none;
  margin: 1.1rem 0 1.5rem;
  padding: 0;
  display: grid;
  gap: .65rem;
}

.page-home .home-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .8rem;
  align-items: baseline;
  padding-bottom: .55rem;
  border-bottom: 1px dashed var(--line-soft);
  font-size: var(--step-3);
  line-height: 1.7;
  color: var(--muted);
}

.page-home .home-steps .mono-note {
  color: var(--shell);
}

/* ---------- 05 品牌与动态 ---------- */
.page-home .home-brand {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .home-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line-soft);
}

.page-home .home-stats li {
  padding: clamp(1rem, 2.4vw, 1.5rem);
  background: var(--ink);
}

.page-home .home-stats__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(1.85rem, 4.4vw, 2.9rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-home .home-stats__num span {
  margin-left: .15em;
  font-size: .48em;
  color: var(--coral);
}

.page-home .home-stats__lab {
  display: block;
  margin-top: .6rem;
  font-size: var(--step-2);
  line-height: 1.7;
  color: var(--muted);
}

.page-home .home-brand__links {
  display: grid;
  gap: .9rem;
  align-content: start;
}

.page-home .home-brand__link {
  display: grid;
  gap: .4rem;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: border-color .25s ease, background-color .25s ease;
}

.page-home .home-brand__link:hover,
.page-home .home-brand__link:focus-visible {
  border-color: var(--gold);
  background: rgba(255, 211, 122, .07);
}

.page-home .home-brand__link .mono-note {
  color: var(--gold);
}

.page-home .home-brand__link strong {
  font-size: var(--step-3);
  font-weight: 500;
  color: var(--text);
}

.page-home .home-brand__link span:last-child {
  font-size: var(--step-2);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .home-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-line--version {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .home-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-home .home-routes {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-home .home-brand {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-home .home-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .home-updates {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .home-support {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (max-width: 559px) {
  .page-home .home-route {
    flex-direction: column;
    align-items: flex-start;
    gap: .6rem;
  }

  .page-home .home-hero__facts {
    gap: 1rem 1.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-cat,
  .page-home .home-route,
  .page-home .home-brand__link,
  .page-home .home-cat__link {
    transition: none;
  }

  .page-home .home-cat:hover {
    transform: none;
  }
}