.page-home {
  --home-pad: clamp(2.5rem, 6vw, 4.5rem);
  --home-accent-line: linear-gradient(90deg, var(--gold), var(--teal-deep));
}

.page-home section {
  scroll-margin-top: 6rem;
}

/* ============ 首屏刊头 ============ */
.page-home .home-front {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2rem, 5vw, 3.5rem) clamp(2.5rem, 6vw, 4rem);
}

.page-home .home-front::after {
  content: "";
  position: absolute;
  top: -22%;
  right: -14%;
  width: min(62vw, 640px);
  height: min(62vw, 640px);
  border-radius: 50%;
  background: radial-gradient(circle at 42% 42%, rgba(201, 162, 39, 0.15), transparent 66%);
  pointer-events: none;
  z-index: 0;
}

.page-home .home-front > .container {
  position: relative;
  z-index: 1;
}

.page-home .home-front .breadcrumbs {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-home .home-front__kicker {
  margin: 0;
  color: var(--gold);
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-home .home-front__title {
  margin: 0.4em 0 0.35em;
  max-width: 18ch;
  font-family: var(--font-cjk);
  font-weight: 300;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--cloud);
}

.page-home .home-front__lede {
  max-width: 34em;
  margin: 0;
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-front__figure {
  margin: clamp(2rem, 5vw, 3.25rem) 0 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-home .home-front__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .home-front__figure::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 11, 13, 0) 45%, rgba(10, 11, 13, 0.55) 100%);
  pointer-events: none;
  z-index: 1;
}

.page-home .home-front__figure .media-frame__caption {
  position: relative;
  z-index: 2;
}

/* ============ 三条线索主题带 ============ */
.page-home .home-lanes {
  padding-block: var(--home-pad);
  border-top: 1px solid var(--line);
}

.page-home .home-lanes__title,
.page-home .home-collect__title,
.page-home .home-digest__title,
.page-home .home-timeline__title,
.page-home .home-start__title {
  margin: 0.5rem 0 0.75rem;
  max-width: 20em;
  font-family: var(--font-cjk);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--cloud);
}

.page-home .home-lanes__intro,
.page-home .home-digest__intro {
  max-width: 34em;
  margin: 0;
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-lanes__list {
  display: flex;
  gap: 0;
  margin: clamp(1.75rem, 3.5vw, 2.75rem) 0 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  scrollbar-color: var(--line) transparent;
}

.page-home .home-lanes__item {
  position: relative;
  flex: 1 0 min(80%, 320px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1.25rem, 2.5vw, 2rem) clamp(1.5rem, 3vw, 2.25rem) 0;
  border-right: 1px solid var(--line);
  min-width: 0;
}

.page-home .home-lanes__item:nth-child(1) { flex-basis: min(82%, 340px); }
.page-home .home-lanes__item:nth-child(2) { flex-basis: min(88%, 420px); }
.page-home .home-lanes__item:nth-child(3) { flex-basis: min(82%, 380px); }

.page-home .home-lanes__item:last-child {
  border-right: none;
  padding-right: 0;
}

.page-home .home-lanes__item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 2.75rem;
  height: 2px;
  background: var(--home-accent-line);
}

.page-home .home-lanes__item .index-num {
  color: var(--gold);
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  font-variant-numeric: tabular-nums;
}

.page-home .home-lanes__name {
  margin: 0;
  font-family: var(--font-cjk);
  font-weight: 900;
  font-size: var(--step-22);
  letter-spacing: -0.02em;
  color: var(--cloud);
}

.page-home .home-lanes__desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-lanes__link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 3px;
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: color 0.25s var(--ease);
}

.page-home .home-lanes__link:hover {
  color: var(--gold-hi);
}

.page-home .home-lanes__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

.page-home .home-lanes__path {
  margin: clamp(1.5rem, 3vw, 2.5rem) 0 0;
  overflow: hidden;
}

.page-home .home-lanes__path img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 170px;
  object-fit: cover;
  opacity: 0.85;
}

/* ============ 收藏三步 ============ */
.page-home .home-collect {
  padding-block: var(--home-pad);
  border-top: 1px solid var(--line);
}

.page-home .home-collect .grid-12 {
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.page-home .home-collect__visual .media-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-home .home-collect__visual .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-collect__lead {
  max-width: 34em;
  margin: 0 0 clamp(1.25rem, 2.5vw, 2rem);
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-collect__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-home .home-collect__step {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 0.4rem 0.5rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.page-home .home-collect__step-num {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  padding-top: 0.3rem;
}

.page-home .home-collect__step h3 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-cjk);
  font-weight: 900;
  font-size: var(--step-17);
  letter-spacing: -0.01em;
  color: var(--cloud);
}

.page-home .home-collect__step p {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-collect__hint,
.page-home .home-timeline__more {
  margin: clamp(1.25rem, 2.5vw, 1.75rem) 0 0;
  max-width: 34em;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-collect__hint a,
.page-home .home-timeline__more a {
  color: var(--gold);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.page-home .home-collect__hint a:focus-visible,
.page-home .home-timeline__more a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ============ 维护摘要 ============ */
.page-home .home-digest {
  padding-block: var(--home-pad);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(20, 22, 27, 0) 0%, rgba(20, 22, 27, 0.55) 45%, rgba(20, 22, 27, 0) 100%);
}

.page-home .home-digest__grid {
  margin-top: clamp(1.75rem, 3.5vw, 2.75rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .home-digest__cell {
  background: var(--ink-1);
  padding: clamp(1.35rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-home .home-digest__cell .index-num {
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  color: var(--copper);
  font-variant-numeric: tabular-nums;
}

.page-home .home-digest__cell h3 {
  margin: 0;
  font-family: var(--font-cjk);
  font-weight: 900;
  font-size: var(--step-17);
  letter-spacing: -0.01em;
  color: var(--cloud);
}

.page-home .home-digest__cell p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ============ 更新节奏时间轴 ============ */
.page-home .home-timeline {
  padding-block: var(--home-pad);
  border-top: 1px solid var(--line);
}

.page-home .home-timeline__list {
  margin: clamp(1.75rem, 3.5vw, 2.75rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  padding: 1.5rem 0 1.5rem 1.75rem;
  border-left: 2px solid var(--line);
}

.page-home .home-timeline__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 2rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-0);
  border: 2px solid var(--gold);
  transition: background 0.25s var(--ease);
}

.page-home .home-timeline__item:hover::before,
.page-home .home-timeline__item:focus-within::before {
  background: var(--gold-hi);
}

.page-home .home-timeline__stamp {
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-home .home-timeline__body h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-cjk);
  font-weight: 900;
  font-size: var(--step-17);
  color: var(--cloud);
}

.page-home .home-timeline__body p {
  margin: 0;
  max-width: 34em;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-timeline__figure {
  margin: clamp(2rem, 4vw, 3rem) 0 0;
  overflow: hidden;
}

.page-home .home-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  opacity: 0.78;
}

.page-home .home-timeline__figure figcaption {
  margin-top: 0.75rem;
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ============ 新访客入口 ============ */
.page-home .home-start {
  padding-block: var(--home-pad) calc(var(--home-pad) * 1.4);
  border-top: 1px solid var(--line);
}

.page-home .home-start__grid {
  margin-top: clamp(1.75rem, 3.5vw, 2.75rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .home-start__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.4rem clamp(1rem, 2.5vw, 1.75rem);
  background: var(--ink-0);
  color: var(--cloud);
  text-decoration: none;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-home .home-start__item .index-num {
  font-family: var(--font-latin);
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-home .home-start__label {
  font-family: var(--font-cjk);
  font-weight: 900;
  font-size: var(--step-17);
  letter-spacing: -0.01em;
}

.page-home .home-start__arrow {
  color: var(--gold);
  font-size: var(--step-17);
  transition: transform 0.25s var(--ease);
}

.page-home .home-start__item:hover,
.page-home .home-start__item:focus-visible {
  background: var(--ink-1);
  outline: none;
  box-shadow: inset 3px 0 0 var(--gold);
}

.page-home .home-start__item:hover .home-start__arrow,
.page-home .home-start__item:focus-visible .home-start__arrow {
  transform: translateX(4px);
}

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

/* ============ 响应式 ============ */
@media (max-width: 899px) {
  .page-home .home-collect .grid-12 > .col-5,
  .page-home .home-collect .grid-12 > .col-7 {
    grid-column: 1 / -1;
  }

  .page-home .home-collect__visual .media-frame__img {
    max-height: 300px;
    object-fit: cover;
  }
}

@media (min-width: 768px) {
  .page-home .home-digest__grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .page-home .home-timeline__item {
    grid-template-columns: minmax(0, 12rem) minmax(0, 1fr);
    gap: 0 2rem;
    align-items: baseline;
  }
}

@media (min-width: 1000px) {
  .page-home .home-lanes__list {
    overflow: visible;
  }

  .page-home .home-lanes__item:nth-child(1) { flex: 3 1 0; }
  .page-home .home-lanes__item:nth-child(2) { flex: 4 1 0; }
  .page-home .home-lanes__item:nth-child(3) { flex: 3 1 0; }

  .page-home .home-front__figure img {
    aspect-ratio: 21 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-lanes__list {
    scroll-behavior: auto;
  }

  .page-home .home-lanes__link,
  .page-home .home-start__item,
  .page-home .home-start__arrow,
  .page-home .home-timeline__item::before {
    transition: opacity 0.2s linear;
  }

  .page-home .home-start__item:hover .home-start__arrow,
  .page-home .home-start__item:focus-visible .home-start__arrow {
    transform: none;
  }
}