.page-home {
  --home-flow: clamp(56px, 9vw, 88px);
  --home-rule: 1px solid var(--line);
}

.page-home .mono {
  letter-spacing: 0.08em;
}

/* ---------- 封面首屏 ---------- */

.page-home .cover {
  display: grid;
  gap: var(--sp-5);
  padding: var(--sp-6) 0;
  border-bottom: var(--home-rule);
}

.page-home .cover__lead {
  position: relative;
  padding: var(--sp-5) var(--sp-4);
  background: linear-gradient(
    140deg,
    rgba(30, 26, 86, 0.85) 0%,
    rgba(16, 18, 53, 0.5) 55%,
    rgba(7, 6, 26, 0) 100%
  );
  border-left: 2px solid var(--neon);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-home .cover__kicker {
  margin: 0;
  font-size: var(--fs-2xs);
  color: var(--neon);
  letter-spacing: 0.18em;
}

.page-home .cover__title {
  margin: var(--sp-3) 0 0;
  font-size: clamp(30px, 7.5vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-home .cover__sub {
  margin: var(--sp-4) 0 0;
  max-width: 36ch;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper-soft);
}

.page-home .cover__index {
  position: relative;
}

.page-home .cover__figure {
  position: relative;
  margin: 0 0 var(--sp-4);
}

.page-home .cover__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: 0.72;
}

.page-home .cover__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 6, 26, 0.15) 0%, rgba(7, 6, 26, 0.9) 100%);
  pointer-events: none;
}

.page-home .cover__index-label {
  margin: 0 0 var(--sp-2);
  font-size: var(--fs-2xs);
  color: var(--stone);
  letter-spacing: 0.18em;
}

.page-home .cover__cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--sp-2);
  position: relative;
  z-index: 1;
}

.page-home .entry-card {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  align-items: center;
  gap: 2px var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: rgba(16, 18, 53, 0.9);
  border: 1px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-home .entry-card:hover,
.page-home .entry-card:focus-visible {
  border-color: var(--neon);
  background: rgba(30, 26, 86, 0.92);
}

.page-home .entry-card__no {
  grid-row: 1 / span 2;
  font-size: var(--fs-sm);
  color: var(--neon);
}

.page-home .entry-card__name {
  font-size: var(--fs-md);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-home .entry-card__desc {
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--paper-dim);
}

.page-home .entry-card--legacy {
  border-left: 3px solid var(--magenta);
}

.page-home .entry-card--legacy .entry-card__no {
  color: var(--magenta);
}

/* ---------- 三线索引 ---------- */

.page-home .section {
  padding: var(--sp-6) 0;
  border-top: var(--home-rule);
}

.page-home .paths__lede {
  margin: var(--sp-3) 0 0;
  max-width: 48ch;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper-soft);
}

.page-home .paths__body {
  display: grid;
  gap: var(--sp-5);
  margin-top: var(--sp-5);
}

.page-home .paths__list {
  display: grid;
  gap: 0;
}

.page-home .path {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: var(--sp-3);
  padding: var(--sp-4) 0;
  border-top: var(--home-rule);
}

.page-home .path:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-home .path__no {
  font-size: var(--fs-lg);
  line-height: 1;
  color: var(--stone);
}

.page-home .path__title {
  margin: 0;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--paper);
}

.page-home .path__text {
  margin: var(--sp-2) 0 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper-soft);
}

.page-home .path__meta {
  margin: var(--sp-2) 0 0;
  font-size: var(--fs-2xs);
  color: var(--gold);
}

.page-home .path__link,
.page-home .case-card__link {
  display: inline-block;
  margin-top: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 232, 218, 0.4);
}

.page-home .path__link:hover,
.page-home .path__link:focus-visible,
.page-home .case-card__link:hover,
.page-home .case-card__link:focus-visible {
  border-bottom-color: var(--neon);
}

.page-home .paths__aside {
  display: grid;
  gap: var(--sp-3);
  align-content: start;
}

.page-home .paths__media {
  border: 1px solid var(--line);
}

.page-home .paths__aside-text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper-soft);
  border-left: 2px solid var(--clay);
  padding-left: var(--sp-3);
}

/* ---------- 旧版入口专区 ---------- */

.page-home .legacy__panel {
  padding: var(--sp-5) var(--sp-4);
  background: linear-gradient(160deg, rgba(30, 26, 86, 0.95) 0%, rgba(16, 18, 53, 0.82) 100%);
  border: 1px solid var(--line);
  border-left: 4px solid var(--magenta);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-home .legacy__badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: var(--fs-2xs);
  letter-spacing: 0.18em;
  color: var(--magenta);
  border: 1px solid var(--magenta);
  background: rgba(255, 60, 155, 0.08);
}

.page-home .legacy__title {
  margin: var(--sp-4) 0 0;
  font-size: clamp(24px, 5.5vw, 36px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-home .legacy__text {
  margin: var(--sp-3) 0 0;
  max-width: 46ch;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper-soft);
}

.page-home .legacy__points {
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--sp-2);
}

.page-home .legacy__point {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--paper-soft);
}

.page-home .legacy__point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 8px;
  background: var(--magenta);
}

.page-home .legacy__panel .btn {
  margin-top: var(--sp-5);
}

/* ---------- 观战案例 ---------- */

.page-home .cases__grid {
  display: grid;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.page-home .case-card {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color 0.24s var(--ease);
}

.page-home .case-card:hover {
  border-color: rgba(53, 232, 218, 0.5);
}

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

.page-home .case-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  flex: 1;
  padding: var(--sp-4);
}

.page-home .case-card__title {
  margin: 0;
  font-size: var(--fs-base);
  line-height: 1.5;
  font-weight: 700;
  color: var(--paper);
}

.page-home .case-card__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper-soft);
}

.page-home .case-card__foot {
  margin-top: auto;
  padding-top: var(--sp-3);
  border-top: var(--home-rule);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
}

.page-home .case-card__meta {
  font-size: var(--fs-2xs);
  color: var(--stone);
}

/* ---------- 资料规模 ---------- */

.page-home .scale {
  position: relative;
  overflow: hidden;
}

.page-home .scale__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  z-index: 0;
}

.page-home .scale__inner {
  position: relative;
  z-index: 1;
}

.page-home .scale__title {
  margin: var(--sp-3) 0 0;
  font-size: clamp(26px, 6vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-home .scale__lead {
  margin: var(--sp-3) 0 0;
  max-width: 54ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--paper-soft);
}

.page-home .scale__stats {
  list-style: none;
  margin: var(--sp-5) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-4) var(--sp-3);
}

.page-home .stat-item {
  border-top: 2px solid var(--stone);
  padding-top: var(--sp-2);
}

.page-home .stat-item__num {
  display: block;
  font-size: clamp(26px, 6.5vw, 36px);
  line-height: 1.1;
  font-weight: 500;
  color: var(--gold);
}

.page-home .stat-item__unit {
  font-size: var(--fs-sm);
  color: var(--paper-dim);
  margin-left: 4px;
}

.page-home .stat-item__label {
  display: block;
  margin-top: var(--sp-2);
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--paper-dim);
}

.page-home .scale__note {
  margin: var(--sp-5) 0 0;
  padding-top: var(--sp-4);
  border-top: var(--home-rule);
  max-width: 58ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--paper-soft);
}

/* ---------- 按兴趣浏览 ---------- */

.page-home .browse__list {
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
}

.page-home .browse__item {
  background: var(--ink);
}

.page-home .browse__item a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--sp-2) var(--sp-3);
  padding: var(--sp-4);
  text-decoration: none;
  color: var(--paper);
  transition: background 0.24s var(--ease);
}

.page-home .browse__item a:hover,
.page-home .browse__item a:focus-visible {
  background: var(--panel);
}

.page-home .browse__name {
  font-size: var(--fs-md);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-home .browse__desc {
  grid-column: 1 / -1;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-home .browse__arrow {
  color: var(--neon);
  font-family: var(--font-mono);
}

/* ---------- 速答 ---------- */

.page-home .faq__list {
  margin-top: var(--sp-5);
  border-bottom: var(--home-rule);
}

.page-home .faq__item {
  border-top: var(--home-rule);
}

.page-home .faq__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-4) 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--paper);
}

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

.page-home .faq__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-md);
  color: var(--neon);
}

.page-home .faq__item[open] .faq__q::after {
  content: "−";
}

.page-home .faq__a {
  margin: 0;
  padding: 0 var(--sp-4) var(--sp-4) 0;
  max-width: 62ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--paper-soft);
}

.page-home .faq__more {
  margin-top: var(--sp-5);
  padding: var(--sp-5) var(--sp-4);
  background: rgba(16, 18, 53, 0.7);
  border-left: 2px solid var(--gold);
  display: grid;
  gap: var(--sp-4);
  align-items: start;
}

.page-home .faq__more-text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--paper-soft);
}

/* ---------- 响应式 ---------- */

@media (min-width: 600px) {
  .page-home .cover__sub {
    font-size: var(--fs-base);
  }

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

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

  .page-home .faq__more {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-home .cover {
    grid-template-columns: 5fr 7fr;
    gap: var(--sp-6);
    align-items: center;
    padding: var(--sp-7) 0 var(--sp-6);
  }

  .page-home .cover__figure {
    position: absolute;
    inset: 0;
    margin: 0;
    z-index: 0;
  }

  .page-home .cover__figure img {
    height: 100%;
    aspect-ratio: auto;
    opacity: 0.3;
  }

  .page-home .cover__cards {
    z-index: 1;
  }

  .page-home .paths__body {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: var(--sp-6);
  }

  .page-home .legacy__panel {
    padding: var(--sp-6) var(--sp-5);
  }

  .page-home .browse__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    background: none;
    border-top: var(--home-rule);
    border-bottom: var(--home-rule);
  }

  .page-home .browse__item {
    background: none;
  }

  .page-home .browse__item + .browse__item {
    border-left: var(--home-rule);
  }

  .page-home .browse__item a {
    height: 100%;
    align-content: start;
  }

  .page-home .scale__stats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-home .cases__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .case-card--lead {
    grid-column: span 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry-card,
  .page-home .case-card,
  .page-home .browse__item a {
    transition: none;
  }
}