/* ==========================================================
   page-home —— 首页专属样式（作用域全部限定在 .page-home）
   ========================================================== */

.page-home {
  --home-gutter: clamp(1rem, 4vw, 3rem);
}

/* ---------- 首屏 ---------- */
.page-home .home-cover {
  padding-block: clamp(2.25rem, 5.5vw, 4.5rem) clamp(2.5rem, 5vw, 4rem);
  overflow: hidden;
}

.page-home .home-cover .breadcrumbs {
  margin-bottom: clamp(1.5rem, 3vw, 2.75rem);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
}

.page-home .home-cover__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
}

@media (min-width: 900px) {
  .page-home .home-cover__grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr);
    gap: 3.5rem;
    align-items: end;
  }
}

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

.page-home .home-cover__title {
  margin: 0.65rem 0 1.15rem;
  font-family: var(--font-display);
  font-size: var(--fs-64);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--white);
  text-wrap: balance;
}

.page-home .home-cover__lede {
  max-width: 40ch;
  margin: 0 0 1.75rem;
}

.page-home .home-cover__stamp {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--blue);
  border-radius: var(--radius-sm);
  background: rgba(14, 107, 168, 0.18);
  color: var(--white);
  font-size: var(--fs-14);
  letter-spacing: 0.02em;
}

.page-home .home-cover__stamp-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(214, 154, 45, 0.2);
}

.page-home .home-cover__figure {
  margin: 0;
  border: 1px solid rgba(150, 162, 171, 0.34);
  border-radius: var(--radius);
  background: var(--ink-2);
  overflow: hidden;
}

.page-home .home-cover__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.04);
}

/* ---------- 三条主入口 ---------- */
.page-home .home-cover__entries {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: clamp(1.5rem, 3vw, 2.25rem);
  border-top: 1px solid rgba(150, 162, 171, 0.28);
}

@media (min-width: 780px) {
  .page-home .home-cover__entries {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
  }
}

.page-home .entry-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num desc";
  column-gap: 1rem;
  row-gap: 0.25rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid rgba(150, 162, 171, 0.3);
  border-radius: var(--radius);
  background: rgba(22, 28, 34, 0.72);
  color: var(--white);
  text-decoration: none;
  transition: border-color var(--dur-1) var(--ease),
              background-color var(--dur-1) var(--ease),
              transform var(--dur-1) var(--ease);
}

.page-home .entry-card:hover,
.page-home .entry-card:focus-visible {
  border-color: var(--blue);
  background: rgba(14, 107, 168, 0.18);
  transform: translateY(-2px);
}

.page-home .entry-card__num {
  grid-area: num;
  align-self: start;
  padding-top: 0.15rem;
  color: var(--amber);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
}

.page-home .entry-card__title {
  grid-area: title;
  font-size: var(--fs-17);
  font-weight: 700;
  line-height: 1.35;
}

.page-home .entry-card__desc {
  grid-area: desc;
  color: var(--silver-soft);
  font-size: var(--fs-14);
  line-height: 1.65;
}

/* ---------- 页内索引条 ---------- */
.page-home .home-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.5rem;
  margin-top: 1.75rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(150, 162, 171, 0.2);
}

.page-home .home-jump__label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  color: var(--silver);
}

.page-home .home-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--silver-soft);
  font-size: var(--fs-14);
  text-decoration: none;
  transition: color var(--dur-1) var(--ease);
}

.page-home .home-jump__link .mono {
  color: var(--blue);
  font-size: var(--fs-12);
}

.page-home .home-jump__link:hover,
.page-home .home-jump__link:focus-visible {
  color: var(--amber);
}

/* ---------- 通用章节标题 ---------- */
.page-home .home-sec-head {
  max-width: 44rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.page-home .home-sec-head .h-1 {
  margin: 0.7rem 0 1rem;
  text-wrap: balance;
}

.page-home .home-sec-head .lede {
  max-width: 40ch;
}

.page-home .home-sec-head__title-ink {
  color: var(--white);
}

/* ---------- 01 适用场景 ---------- */
.page-home .home-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

@media (min-width: 760px) {
  .page-home .home-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

.page-home .scene-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.5rem 1.6rem 1.65rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--white);
  transition: border-color var(--dur-2) var(--ease),
              box-shadow var(--dur-2) var(--ease),
              transform var(--dur-2) var(--ease);
}

.page-home .scene-card:hover,
.page-home .scene-card:focus-within {
  border-color: var(--blue);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}

.page-home .scene-card--feature {
  grid-column: 1 / -1;
  padding: 0;
  gap: 0;
  overflow: hidden;
}

@media (min-width: 760px) {
  .page-home .scene-card--feature {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: stretch;
  }
}

.page-home .scene-card__figure {
  margin: 0;
  border: none;
  border-radius: 0;
  min-height: 100%;
}

.page-home .scene-card__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .scene-card--feature .scene-card__body {
  padding: 1.75rem 1.85rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-home .scene-card__num {
  display: inline-block;
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-home .scene-card__title {
  margin: 0;
  font-size: var(--fs-21);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
  text-wrap: balance;
}

.page-home .scene-card__text {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--ink);
  opacity: 0.86;
}

/* ---------- 02 分类索引 ---------- */
.page-home .home-catalog {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 980px) {
  .page-home .home-catalog {
    grid-template-columns: minmax(0, 1fr) 288px;
    gap: 2.75rem;
    align-items: start;
  }
}

.page-home .home-catalog__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: catalog;
  border-top: 1px solid var(--rule);
}

@media (min-width: 700px) {
  .page-home .home-catalog__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 2.25rem;
  }
}

.page-home .catalog-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0.95rem;
  padding: 1.05rem 0.35rem;
  border-bottom: 1px solid var(--rule);
  transition: background-color var(--dur-1) var(--ease);
}

.page-home .catalog-item:hover,
.page-home .catalog-item:focus-within {
  background-color: rgba(14, 107, 168, 0.06);
}

.page-home .catalog-item__num {
  padding-top: 0.2rem;
  color: var(--blue);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
}

.page-home .catalog-item__body {
  min-width: 0;
}

.page-home .catalog-item__name {
  margin: 0 0 0.28rem;
  font-size: var(--fs-17);
  font-weight: 700;
  color: var(--ink);
}

.page-home .catalog-item__desc {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--ink);
  opacity: 0.72;
}

.page-home .home-catalog__aside {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.page-home .home-catalog__aside .media-frame {
  margin: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

.page-home .home-catalog__aside img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-catalog__cta {
  align-self: flex-start;
}

/* ---------- 03 编研流程 ---------- */
.page-home .home-band {
  margin: 0 0 clamp(2rem, 4vw, 3rem);
  border: 1px solid rgba(150, 162, 171, 0.26);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
}

.page-home .home-band img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.06);
}

.page-home .home-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}

@media (min-width: 820px) {
  .page-home .home-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.75rem;
  }
}

.page-home .flow-step {
  position: relative;
  padding: 1.6rem 0 0;
  border-top: 1px solid rgba(150, 162, 171, 0.3);
}

.page-home .flow-step::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(214, 154, 45, 0.18);
}

.page-home .flow-step__num {
  display: block;
  margin-bottom: 0.55rem;
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--silver);
}

.page-home .flow-step__title {
  margin: 0 0 0.5rem;
  font-size: var(--fs-21);
  font-weight: 700;
  color: var(--white);
}

.page-home .flow-step__text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--silver-soft);
}

/* ---------- 04 版本摘要 ---------- */
.page-home .home-release {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 900px) {
  .page-home .home-release {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 3rem;
    align-items: start;
  }
}

.page-home .home-release__intro .h-1 {
  margin: 0.7rem 0 1rem;
  text-wrap: balance;
}

.page-home .home-release__intro .lede {
  max-width: 36ch;
}

.page-home .home-release__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

@media (min-width: 900px) {
  .page-home .home-release__stats {
    grid-column: 2;
    grid-row: 1 / span 2;
  }
}

.page-home .release-stat {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.4rem 1rem 1.35rem;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--blue);
  border-radius: var(--radius);
  background: var(--white);
}

.page-home .release-stat--warn {
  border-top-color: var(--orange);
}

.page-home .release-stat__num {
  font-size: var(--fs-40);
  font-weight: 600;
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-home .release-stat--warn .release-stat__num {
  color: var(--orange-deep);
}

.page-home .release-stat__label {
  font-size: var(--fs-14);
  letter-spacing: 0.04em;
  color: var(--ink);
  opacity: 0.68;
}

.page-home .home-release__foot {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.35rem;
}

.page-home .home-release__foot .note {
  max-width: 42ch;
  font-size: var(--fs-14);
}

/* ---------- 05 反馈通道 ---------- */
.page-home .home-support__head {
  max-width: 44rem;
  margin-bottom: clamp(2rem, 4vw, 2.75rem);
}

.page-home .home-support__title {
  margin: 0.7rem 0 1rem;
  color: var(--white);
  text-wrap: balance;
}

.page-home .home-support__head .lede {
  max-width: 42ch;
}

.page-home .home-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 880px) {
  .page-home .home-support__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 3rem;
  }
}

.page-home .home-support__subtitle {
  margin: 0 0 1.15rem;
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-home .support-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(150, 162, 171, 0.28);
}

.page-home .support-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid rgba(150, 162, 171, 0.28);
}

@media (min-width: 560px) {
  .page-home .support-item {
    grid-template-columns: 8.25rem minmax(0, 1fr);
    gap: 1.25rem;
    align-items: baseline;
  }
}

.page-home .support-item__key {
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--silver);
}

.page-home .support-item__val {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--silver-soft);
}

.page-home .home-support__col--aside {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(150, 162, 171, 0.28);
}

@media (min-width: 880px) {
  .page-home .home-support__col--aside {
    padding-top: 0;
    padding-left: 2rem;
    border-top: none;
    border-left: 1px solid rgba(150, 162, 171, 0.28);
  }
}

.page-home .home-support__line {
  margin: 0 0 1.25rem;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--silver-soft);
}

.page-home .home-support__contact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.85rem;
  margin: 0 0 0.7rem;
}

.page-home .home-support__contact-key {
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--silver);
}

.page-home .home-support__contact-val {
  font-size: var(--fs-17);
  color: var(--white);
  word-break: break-all;
}

.page-home .home-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* ---------- 进视口动效（渐进增强） ---------- */
.js-on .page-home [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
}

.js-on .page-home [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 560px) {
  .page-home .home-cover__entries {
    gap: 0.7rem;
  }

  .page-home .entry-card {
    padding: 0.95rem 1rem;
  }

  .page-home .home-release__stats {
    grid-template-columns: 1fr;
  }

  .page-home .release-stat {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    padding: 1rem 1.1rem;
  }

  .page-home .release-stat__num {
    font-size: var(--fs-28);
  }

  .page-home .home-jump {
    gap: 0.5rem 1rem;
  }
}

/* ---------- 减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .entry-card,
  .page-home .scene-card,
  .page-home .catalog-item,
  .page-home .home-jump__link {
    transition: none;
  }

  .page-home .entry-card:hover,
  .page-home .entry-card:focus-visible,
  .page-home .scene-card:hover,
  .page-home .scene-card:focus-within {
    transform: none;
  }

  .js-on .page-home [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}