.page-home {
  --home-gap: clamp(52px, 9vw, 104px);
  --home-cut: 20px;
}

.page-home .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--anchor);
  transition: border-color 180ms var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  background: var(--void);
  padding: clamp(96px, 15vw, 152px) 0 clamp(36px, 6vw, 72px);
  border-bottom: 1px solid var(--anchor);
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(241, 247, 246, 0.05) 1px, transparent 0);
  background-size: 5px 5px;
}

.page-home .hero__bg svg {
  position: absolute;
  right: -12%;
  top: -8%;
  width: min(880px, 92%);
  height: auto;
  opacity: 0.45;
}

.page-home .hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 6vw, 56px);
  align-items: center;
}

.page-home .hero__title {
  margin: 16px 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 8.2vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--salt);
}

.page-home .hero__deck {
  max-width: 46ch;
  margin: 0 0 26px;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--mist);
}

.page-home .hero__deck::first-line {
  color: var(--salt);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero__ticks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 30px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--anchor);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-home .hero__ticks .data-num {
  font-size: var(--fs-sm);
  color: var(--cyan);
}

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

.page-home .hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%);
}

.page-home .hero__strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 14px;
  padding: 14px 14px 14px 12px;
  background: var(--tactic);
  border-left: 2px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 100%, 0 100%);
}

.page-home .hero__strip-cell {
  padding: 0 10px;
  border-left: 1px solid var(--anchor);
}

.page-home .hero__strip-cell:first-child {
  padding-left: 2px;
  border-left: 0;
}

.page-home .hero__strip-cell .data-num {
  display: block;
  font-size: clamp(17px, 2.4vw, 23px);
  color: var(--cyan);
}

.page-home .hero__strip-label {
  display: block;
  margin-top: 5px;
  font-size: var(--fs-xxs);
  line-height: 1.45;
  color: var(--mist);
}

/* ---------- 轮次条 ---------- */
.page-home .rounds {
  background: var(--teal);
  padding: clamp(42px, 7vw, 72px) 0 clamp(30px, 5vw, 52px);
  clip-path: polygon(0 0, 100% 26px, 100% 100%, 0 100%);
  margin-top: -1px;
  overflow: hidden;
}

.page-home .rounds .eyebrow {
  color: var(--salt);
}

.page-home .rounds__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h2);
  letter-spacing: -0.01em;
  color: var(--void);
}

.page-home .rounds__track {
  display: flex;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-home .rounds__node {
  flex: 0 0 auto;
  min-width: 138px;
  padding: 12px 14px;
  background: rgba(6, 24, 38, 0.82);
  border: 1px solid var(--anchor);
  color: var(--mist);
  clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
}

.page-home .rounds__node[aria-current="true"] {
  border-color: var(--coral);
  color: var(--salt);
}

.page-home .rounds__no {
  display: block;
  font-size: clamp(22px, 3vw, 30px);
  color: var(--cyan);
}

.page-home .rounds__node[aria-current="true"] .rounds__no {
  color: var(--signal);
}

.page-home .rounds__desc {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-xxs);
  line-height: 1.5;
}

/* ---------- 索引区 ---------- */
.page-home .index {
  background: var(--void);
  padding: var(--home-gap) 0;
}

.page-home .index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 44px);
}

.page-home .index__panel {
  padding: 22px 20px 24px;
  background: var(--tactic);
  border: 1px solid var(--anchor);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--home-cut)), calc(100% - var(--home-cut)) 100%, 0 100%);
}

.page-home .index__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h3);
  line-height: 1.25;
  color: var(--salt);
}

.page-home .index__note {
  margin: 0 0 18px;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

.page-home .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-home .tags .chip {
  display: inline-block;
  padding: 5px 11px;
  font-size: var(--fs-xxs);
  letter-spacing: 0.04em;
  border: 1px solid var(--anchor);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-home .index__meta {
  margin: 0 0 20px;
  padding-top: 16px;
  border-top: 1px solid var(--anchor);
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--mist);
}

.page-home .index__main {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 34px);
}

.page-home .index__figure {
  margin: 0;
  background: var(--tactic);
  border: 1px solid var(--anchor);
}

.page-home .index__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .index__figure figcaption {
  padding: 12px 16px 14px;
  font-size: var(--fs-xs);
  line-height: 1.65;
  color: var(--mist);
  border-top: 1px solid var(--anchor);
}

.page-home .index__block h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h3);
  letter-spacing: -0.005em;
  color: var(--salt);
}

.page-home .index__block p {
  max-width: 58ch;
  margin: 0 0 12px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mist);
}

.page-home .index__hint {
  padding-left: 14px;
  border-left: 2px solid var(--coral);
  color: var(--salt);
  font-size: var(--fs-sm);
}

/* ---------- 变更提示带 ---------- */
.page-home .changes {
  background: var(--coral);
  padding: clamp(20px, 3.4vw, 30px) 0 clamp(24px, 4vw, 34px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), 0 100%);
}

.page-home .changes__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  color: var(--ink);
}

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

.page-home .changes .chip--coral {
  background: var(--ink);
  color: var(--coral);
  border-color: var(--ink);
  padding: 4px 10px;
  font-size: var(--fs-xxs);
  letter-spacing: 0.06em;
}

.page-home .changes__text {
  flex: 1 1 260px;
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-home .changes__link {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  transition: opacity 180ms var(--ease);
}

.page-home .changes__link:hover {
  opacity: 0.65;
}

/* ---------- 统计 ---------- */
.page-home .metrics {
  background: var(--void);
  padding: var(--home-gap) 0;
}

.page-home .metrics__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.page-home .metrics h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h2);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--salt);
}

.page-home .metrics__lead > p {
  max-width: 44ch;
  margin: 0 0 24px;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--mist);
}

.page-home .metrics__figure {
  margin: 0;
  border: 1px solid var(--anchor);
}

.page-home .metrics__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-home .metrics__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .metrics__card {
  padding: 18px 20px 20px;
  background: var(--tactic);
  border: 1px solid var(--anchor);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: border-color 180ms var(--ease);
}

.page-home .metrics__card:hover {
  border-color: var(--cyan);
}

.page-home .metrics__big {
  display: block;
  font-size: clamp(28px, 4vw, 38px);
  color: var(--cyan);
  line-height: 1;
}

.page-home .metrics__card h3 {
  margin: 12px 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h3);
  color: var(--salt);
}

.page-home .metrics__card p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 回看 ---------- */
.page-home .replay {
  background: var(--tactic);
  border-top: 1px solid var(--anchor);
  border-bottom: 1px solid var(--anchor);
  padding: var(--home-gap) 0;
}

.page-home .replay__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4.5vw, 44px);
  align-items: center;
}

.page-home .replay__media {
  margin: 0;
  border: 1px solid var(--anchor);
}

.page-home .replay__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-home .replay h2 {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h2);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--salt);
}

.page-home .replay__body p {
  max-width: 52ch;
  margin: 0 0 14px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mist);
}

.page-home .replay__list {
  margin: 0 0 24px;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--anchor);
}

.page-home .replay__list li {
  position: relative;
  padding: 6px 0 6px 18px;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--salt);
}

.page-home .replay__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

.page-home .replay__list .data-num {
  color: var(--cyan);
}

/* ---------- 长期使用 ---------- */
.page-home .reasons {
  background: var(--sand);
  padding: var(--home-gap) 0;
}

.page-home .reasons__title {
  margin: 10px 0 clamp(26px, 4vw, 40px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h2);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .reasons__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
}

.page-home .reasons__item {
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}

.page-home .reasons__no {
  display: block;
  font-size: var(--fs-sm);
  color: var(--teal);
  letter-spacing: 0.1em;
}

.page-home .reasons__item h3 {
  margin: 10px 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-h3);
  line-height: 1.35;
  color: var(--ink);
}

.page-home .reasons__item p {
  margin: 0;
  max-width: 40ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 开始使用 ---------- */
.page-home .start {
  background: var(--void);
  padding: var(--home-gap) 0 calc(var(--home-gap) + 8px);
}

.page-home .start__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4.5vw, 44px);
  align-items: start;
}

.page-home .start h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h2);
  letter-spacing: -0.01em;
  color: var(--salt);
}

.page-home .start__lead p {
  max-width: 44ch;
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mist);
}

.page-home .start__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .start__link {
  display: block;
  padding: 18px 20px 20px;
  background: var(--tactic);
  border: 1px solid var(--anchor);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

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

.page-home .start__link strong {
  position: relative;
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h3);
  color: var(--salt);
}

.page-home .start__link strong::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms var(--ease);
}

.page-home .start__link:hover strong::after {
  transform: scaleX(1);
}

.page-home .start__link span {
  display: block;
  margin-top: 12px;
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-home .metrics__list {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: clamp(32px, 4vw, 56px);
    min-height: 58vh;
  }

  .page-home .hero__lead {
    grid-column: 1 / span 7;
  }

  .page-home .hero__visual {
    grid-column: 8 / span 5;
  }

  .page-home .hero__strip {
    position: absolute;
    left: -16%;
    right: 3%;
    bottom: 5%;
    margin-top: 0;
  }

  .page-home .index__grid {
    grid-template-columns: minmax(272px, 4fr) 7fr;
    gap: clamp(32px, 4vw, 52px);
  }

  .page-home .index__aside {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    align-self: start;
  }

  .page-home .metrics__grid {
    grid-template-columns: 5fr 7fr;
  }

  .page-home .replay__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-home .start__grid {
    grid-template-columns: 4fr 8fr;
    gap: clamp(32px, 4vw, 56px);
  }
}

@media (min-width: 1080px) {
  .page-home .index__main {
    padding-top: 6px;
  }

  .page-home .index__block {
    padding-left: clamp(0px, 2vw, 26px);
    border-left: 1px solid var(--anchor);
  }

  .page-home .hero__title {
    line-height: 1;
  }
}

@media (max-width: 420px) {
  .page-home .hero__strip {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 14px;
  }

  .page-home .hero__strip-cell {
    padding: 0 0 0 8px;
    border-left: 1px solid var(--anchor);
  }
}