.page-home {
  --home-pad: clamp(18px, 5vw, 48px);
  --home-gap: clamp(56px, 9vw, 112px);
  --home-ink-soft: rgba(234, 242, 255, 0.8);
  color: var(--fog);
  font-family: var(--font-body);
}

.page-home > section + section {
  margin-top: var(--home-gap);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px, 6vw, 60px) var(--home-pad) clamp(30px, 6vw, 64px);
  border: 1px solid var(--edge);
  border-radius: var(--radius-xl);
  background: linear-gradient(158deg, #0C1430 0%, var(--bg) 70%);
}

.page-home .hero__bg {
  position: absolute;
  inset: -30% -16% auto -16%;
  height: 152%;
  z-index: -1;
  clip-path: polygon(0 0, 100% 0, 100% 62%, 0 96%);
  background:
    radial-gradient(circle at 76% 16%, rgba(61, 245, 208, 0.3), transparent 56%),
    linear-gradient(112deg, rgba(15, 111, 120, 0.62) 0%, rgba(15, 111, 120, 0) 54%),
    linear-gradient(296deg, rgba(255, 106, 61, 0.34) 0%, rgba(180, 55, 44, 0) 46%);
}

.page-home .hero__grid {
  display: grid;
  gap: var(--space-4);
}

.page-home .hero__crumb {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--metal);
}

.page-home .hero__crumb span {
  margin: 0 8px;
  color: var(--edge);
}

.page-home .hero__title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8.5vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.page-home .hero__hl {
  position: relative;
  display: inline-block;
  color: var(--cyan);
}

.page-home .hero__hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0.08em;
  bottom: 0.06em;
  height: 0.12em;
  background: linear-gradient(90deg, var(--cyan), rgba(61, 245, 208, 0));
  transform: skewY(-2deg);
  opacity: 0.55;
}

.page-home .hero__lede {
  margin: 0 0 var(--space-4);
  max-width: 36ch;
  font-size: clamp(16px, 2.2vw, 18px);
  line-height: 1.75;
  color: var(--home-ink-soft);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.page-home .hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  margin: 0;
  padding: var(--space-3) 0 0;
  border-top: 1px solid var(--edge);
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--metal);
}

.page-home .hero__metrics strong {
  display: block;
  margin-bottom: 4px;
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 700;
  letter-spacing: 0;
  color: var(--fog);
}

.page-home .hero__media {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  box-shadow: 0 26px 64px rgba(4, 8, 22, 0.8);
}

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

.page-home .hero__spotlight {
  padding: var(--space-3);
  border: 1px solid var(--edge);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius-lg);
  background: rgba(14, 22, 51, 0.86);
}

.page-home .spotlight__label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-home .spotlight__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: 10px 0;
  border-top: 1px dashed var(--edge);
  font-size: 14px;
  color: var(--home-ink-soft);
}

.page-home .spotlight__row:first-of-type {
  border-top: 0;
}

.page-home .spotlight__value {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  white-space: nowrap;
}

/* ---------- 通用面板 ---------- */
.page-home .block {
  padding: clamp(24px, 5vw, 52px);
  border: 1px solid var(--edge);
  border-radius: var(--radius-xl);
  background: var(--panel-1);
}

.page-home .block--teal {
  background:
    radial-gradient(circle at 88% 8%, rgba(61, 245, 208, 0.14), transparent 52%),
    linear-gradient(150deg, rgba(15, 111, 120, 0.3) 0%, var(--panel-1) 58%);
}

.page-home .block__head {
  max-width: 62ch;
  margin-bottom: var(--space-4);
}

.page-home .block__title {
  margin: var(--space-2) 0 var(--space-3);
}

.page-home .block__lede {
  margin: 0;
  max-width: 38ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--home-ink-soft);
}

.page-home .block__grid {
  display: grid;
  gap: var(--space-4);
}

.page-home .block__note {
  margin: var(--space-3) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--metal);
}

.page-home .link-inline {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 245, 208, 0.45);
}

.page-home .link-inline:hover,
.page-home .link-inline:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-home .block__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
}

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

.page-home .block__media.media-frame--tall {
  aspect-ratio: 4 / 5;
}

.page-home .block__media.media-frame--wide {
  aspect-ratio: 16 / 10;
}

.page-home .fact-list {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .fact-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px var(--space-2);
  border-radius: var(--radius-md);
  background: var(--panel-2);
  font-size: 15px;
  line-height: 1.65;
  color: var(--home-ink-soft);
}

.page-home .fact-list li > span:first-child {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  white-space: nowrap;
  padding-top: 2px;
}

/* ---------- 技能树 ---------- */
.page-home .tree {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .tree__node {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2);
  align-items: start;
}

.page-home .tree__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--edge);
  border-radius: var(--pill);
  background: var(--panel-2);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-home .tree__card {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  background: var(--panel-2);
  transition: border-color 0.25s ease;
}

.page-home .tree__card[open],
.page-home .tree__card:hover {
  border-color: rgba(61, 245, 208, 0.5);
}

.page-home .tree__card summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: 6px 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--fog);
  cursor: pointer;
  list-style: none;
}

.page-home .tree__card summary::-webkit-details-marker {
  display: none;
}

.page-home .tree__card summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}

.page-home .tree__card[open] summary::after {
  content: "–";
}

.page-home .tree__card p {
  margin: 4px 0 8px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--home-ink-soft);
}

/* ---------- 校准时间线 ---------- */
.page-home .calib {
  padding: clamp(24px, 5vw, 52px);
  border: 1px solid var(--edge);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 106, 61, 0.16), transparent 48%),
    linear-gradient(200deg, rgba(180, 55, 44, 0.18) 0%, var(--panel-1) 56%);
}

.page-home .calib__list {
  position: relative;
  display: grid;
  gap: var(--space-4);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  max-width: 60ch;
}

.page-home .calib__item {
  position: relative;
  padding-left: 34px;
}

.page-home .calib__item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 22px;
  bottom: calc(-1 * var(--space-4) + 6px);
  width: 1px;
  background: linear-gradient(180deg, var(--edge), rgba(42, 58, 95, 0));
}

.page-home .calib__item:last-child::before {
  display: none;
}

.page-home .calib__dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 17px;
  height: 17px;
  border-radius: var(--pill);
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 61, 0.16);
}

.page-home .calib__time {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-home .calib__title {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 700;
  color: var(--fog);
}

.page-home .calib__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--home-ink-soft);
}

/* ---------- 会员权益 ---------- */
.page-home .member {
  display: grid;
  gap: var(--space-4);
  padding: clamp(24px, 5vw, 52px);
  border: 1px solid var(--edge);
  border-radius: var(--radius-xl);
  background: var(--panel-1);
}

.page-home .member__tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-2);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .tier {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--edge);
  border-radius: var(--radius-md);
  background: linear-gradient(140deg, rgba(22, 35, 71, 0.95), rgba(14, 22, 51, 0.95));
}

.page-home .tier__name {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan);
}

.page-home .tier__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--metal);
}

.page-home .member__media {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
}

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

.page-home .benefits {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .benefit {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--edge);
  border-radius: var(--radius-md);
  background: linear-gradient(120deg, rgba(22, 35, 71, 0.95), rgba(14, 22, 51, 0.95));
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-home .benefit:hover,
.page-home .benefit:focus-within {
  border-color: rgba(61, 245, 208, 0.6);
  box-shadow: 0 0 0 1px rgba(61, 245, 208, 0.2);
}

.page-home .benefit__name {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--fog);
}

.page-home .benefit__scene {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--metal);
}

/* ---------- 回访入口 ---------- */
.page-home .reentry__grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-home .relink {
  display: block;
  padding: var(--space-3);
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  background: var(--panel-1);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-home .relink:hover,
.page-home .relink:focus-visible {
  border-color: rgba(61, 245, 208, 0.65);
  background: var(--panel-2);
}

.page-home .relink:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.page-home .relink__title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fog);
}

.page-home .relink__arrow {
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-home .relink__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--metal);
}

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

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

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    grid-template-areas:
      "copy media"
      "spot media";
    align-items: start;
    column-gap: var(--space-5);
    row-gap: var(--space-4);
  }

  .page-home .hero__copy {
    grid-area: copy;
  }

  .page-home .hero__media {
    grid-area: media;
    align-self: stretch;
    aspect-ratio: auto;
    min-height: 460px;
    margin-top: 26px;
  }

  .page-home .hero__spotlight {
    grid-area: spot;
  }

  .page-home .block__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-home .block__grid--reverse {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-home .tree {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .tree__node {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .page-home .tree__node::before {
    content: "";
    position: absolute;
    top: 21px;
    left: 42px;
    right: calc(-1 * var(--space-3));
    height: 1px;
    background: linear-gradient(90deg, rgba(61, 245, 208, 0.55), rgba(42, 58, 95, 0.2));
  }

  .page-home .tree__node:last-child::before {
    display: none;
  }

  .page-home .member {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    align-items: start;
  }

  .page-home .benefits {
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .reentry__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-home .hero__title {
    font-size: clamp(64px, 6.4vw, 96px);
  }

  .page-home .calib__list {
    max-width: 68ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .benefit,
  .page-home .relink,
  .page-home .tree__card {
    transition: none;
  }
}