.page-home {
  --home-gap: clamp(18px, 3vw, 34px);
  --home-y: clamp(56px, 9vw, 112px);
  --home-nudge: clamp(0px, 2vw, 22px);
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  padding-top: clamp(24px, 5vw, 56px);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-home .hero__grid {
  display: grid;
  gap: var(--home-gap);
  align-items: center;
}

.page-home .hero__copy .display-xl {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-home .hero__lede {
  margin-top: clamp(16px, 2.4vw, 24px);
  max-width: 46ch;
  color: var(--text-soft);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-home .hero__facts {
  list-style: none;
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  padding: clamp(18px, 2.4vw, 24px) 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  border-top: 1px solid var(--line);
}

.page-home .hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-home .hero__facts .data-num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.6rem, 5vw, 2.3rem);
  line-height: 1;
  font-weight: 600;
}

.page-home .hero__facts .label {
  color: var(--text-dim);
  line-height: 1.5;
}

/* 首屏右侧数据舞台 */
.page-home .hero__stage {
  position: relative;
  isolation: isolate;
  padding-left: clamp(0px, 2vw, 22px);
}

.page-home .stage__glow {
  position: absolute;
  inset: -14% -12% -16% 2%;
  z-index: -1;
  border-radius: 50%;
  background:
    radial-gradient(46% 46% at 28% 26%, rgba(200, 255, 77, 0.2), transparent 70%),
    radial-gradient(52% 52% at 76% 72%, rgba(53, 208, 186, 0.16), transparent 72%);
  filter: blur(8px);
  pointer-events: none;
}

.page-home .stage__frame {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--ink-900);
  box-shadow: var(--shadow-panel);
}

.page-home .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-home .stage__frame img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .scorecard {
  position: absolute;
  left: clamp(-16px, -1.2vw, 0px);
  bottom: clamp(-20px, -2vw, -8px);
  z-index: 2;
  width: min(86%, 340px);
  padding: 16px 18px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-strong);
  background: linear-gradient(158deg, rgba(18, 41, 63, 0.96), rgba(10, 22, 38, 0.98));
  box-shadow: 0 30px 56px -32px rgba(0, 0, 0, 0.95);
}

.page-home .scorecard__label {
  margin: 0;
  color: var(--cool-grey);
}

.page-home .scorecard__row {
  display: grid;
  grid-template-columns: 1fr auto auto auto 1fr;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.page-home .scorecard__side {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text-soft);
}

.page-home .scorecard__side:first-of-type {
  text-align: left;
}

.page-home .scorecard__side:last-of-type {
  text-align: right;
}

.page-home .scorecard__colon {
  font-family: var(--font-data);
  font-size: 1.5rem;
  color: var(--cool-grey);
}

.page-home .scorecard .data-num--xl {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  color: var(--paper-100);
}

.page-home .scorecard__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.page-home .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

.page-home .tag--yellow {
  border-color: rgba(245, 197, 66, 0.44);
  color: var(--card-yellow);
}

.page-home .tag--red {
  border-color: rgba(226, 87, 76, 0.44);
  color: var(--card-red);
}

.page-home .tag--volt {
  border-color: rgba(200, 255, 77, 0.44);
  color: var(--volt-400);
}

.page-home .card-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

/* ---------- 章节导航 ---------- */
.page-home .chapter-nav {
  position: sticky;
  top: var(--header-h-scrolled);
  z-index: 40;
  margin-top: clamp(8px, 2vw, 20px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(6, 13, 22, 0.94), rgba(6, 13, 22, 0.76));
  backdrop-filter: blur(12px);
}

.page-home .chapter-nav__inner {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
  padding-top: 10px;
  padding-bottom: 10px;
}

.page-home .chapter-nav__inner::-webkit-scrollbar {
  display: none;
}

.page-home .chapter-nav__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .chapter-link {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-home .chapter-link:hover {
  color: var(--paper-100);
  border-color: var(--line-strong);
}

.page-home .chapter-link[aria-current="true"] {
  color: var(--ink-950);
  background: var(--volt-400);
  border-color: var(--volt-400);
}

/* ---------- 通用区块 ---------- */
.page-home .section-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.7rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-home .eyebrow {
  color: var(--cool-grey);
}

.page-home .text-link {
  display: inline-block;
  margin-top: 18px;
  padding-bottom: 3px;
  color: var(--volt-400);
  font-size: 14px;
  letter-spacing: 0.03em;
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 77, 0.4);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-home .text-link:hover {
  color: var(--paper-100);
  border-color: var(--paper-100);
}

/* ---------- 一屏摘要 ---------- */
.page-home .summary__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-home .summary__list {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .summary__list li {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}

.page-home .summary__list li::before {
  content: "";
  width: 12px;
  height: 12px;
  margin-top: 0.42em;
  border-radius: 3px;
  background: var(--volt-400);
}

.page-home .summary__list strong {
  display: block;
  color: var(--paper-100);
  font-size: 15px;
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}

.page-home .summary__list span {
  display: block;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.72;
}

.page-home .summary__note {
  margin-top: clamp(18px, 2.4vw, 26px);
  padding-left: 14px;
  border-left: 2px solid var(--cyan-400);
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
}

.page-home .summary__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-panel);
}

.page-home .summary__figure img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .media-frame__caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
  background: rgba(10, 22, 38, 0.72);
}

/* ---------- 版本演进 ---------- */
.page-home .version__head {
  max-width: 62ch;
}

.page-home .version__head .lede {
  margin-top: 14px;
  color: var(--text-soft);
}

.page-home .version__timeline {
  margin-top: clamp(30px, 5vw, 52px);
}

.page-home .timeline {
  position: relative;
  list-style: none;
  padding: 0 0 0 30px;
  display: grid;
  gap: clamp(20px, 3.4vw, 36px);
}

.page-home .timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cool-grey), var(--amber-500) 55%, var(--volt-400));
  opacity: 0.62;
}

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

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 0.42em;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-950);
  border: 2px solid var(--amber-500);
}

.page-home .timeline__tag {
  margin: 0;
  color: var(--amber-500);
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
}

.page-home .panel-title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  letter-spacing: -0.005em;
  color: var(--paper-100);
}

.page-home .timeline__item p:last-child {
  margin: 0;
  max-width: 62ch;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
}

.page-home .version__cards {
  margin-top: clamp(30px, 5vw, 52px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-home .vcard {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(18, 41, 63, 0.72), rgba(10, 22, 38, 0.86));
  box-shadow: var(--shadow-panel);
}

.page-home .vcard::after {
  content: "";
  position: absolute;
  left: clamp(20px, 3vw, 28px);
  right: clamp(20px, 3vw, 28px);
  top: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--volt-400), var(--cyan-400), transparent);
  opacity: 0.6;
}

.page-home .vcard__num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  color: var(--cool-grey);
}

.page-home .vcard__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.6vw, 1.3rem);
  color: var(--paper-100);
}

.page-home .vcard p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 近 12 轮 ---------- */
.page-home .rounds__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-home .rounds__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-panel);
}

.page-home .rounds__figure img {
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-home .rounds__points {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-home .rounds__points li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-home .rounds__points .data-num {
  font-family: var(--font-data);
  letter-spacing: 0.08em;
  padding-top: 3px;
  white-space: nowrap;
}

.page-home .rounds__points p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 收藏与订阅 ---------- */
.page-home .flow__head {
  max-width: 62ch;
}

.page-home .flow__head .lede {
  margin-top: 14px;
  color: var(--text-soft);
}

.page-home .flow__steps {
  list-style: none;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-home .fstep {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(10, 22, 38, 0.62);
}

.page-home .fstep__idx {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--amber-500);
}

.page-home .fstep__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.8vw, 1.35rem);
  line-height: 1.3;
  color: var(--paper-100);
}

.page-home .fstep p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
}

.page-home .subscribe-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-home .chip {
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-home .chip:hover {
  color: var(--paper-100);
}

.page-home .chip[aria-pressed="true"],
.page-home .chip.is-active {
  color: var(--ink-950);
  background: var(--volt-400);
  border-color: var(--volt-400);
}

/* ---------- 移动端 ---------- */
.page-home .mobile__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-home .mobile__copy > p:not(.eyebrow) {
  margin-top: 16px;
  max-width: 52ch;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.78;
}

.page-home .mobile__path {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: pathstep;
}

.page-home .mobile__path li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan-400);
  background: rgba(18, 41, 63, 0.42);
}

.page-home .mobile__path .label {
  color: var(--cyan-400);
}

.page-home .mobile__path p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.7;
}

.page-home .mobile__note {
  margin-top: 18px;
  padding-left: 14px;
  border-left: 2px solid var(--amber-500);
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
}

.page-home .mobile__figure {
  margin: 0 auto;
  width: min(100%, 420px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-panel);
}

.page-home .mobile__figure img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

/* ---------- 问答 ---------- */
.page-home .faq__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-home .faq__intro > p:not(.eyebrow) {
  margin-top: 16px;
  max-width: 48ch;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.78;
}

.page-home .faq__list {
  display: grid;
  gap: 12px;
}

.page-home .accordion__item {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(18, 41, 63, 0.4);
  overflow: hidden;
}

.page-home .accordion__item h3 {
  margin: 0;
}

.page-home .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border: 0;
  background: none;
  color: var(--paper-100);
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.4vw, 1.14rem);
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

.page-home .accordion__trigger:hover {
  color: var(--volt-400);
}

.page-home .accordion__icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
}

.page-home .accordion__icon::before,
.page-home .accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--volt-400);
  border-radius: 2px;
}

.page-home .accordion__icon::before {
  left: 5px;
  right: 5px;
  top: 10px;
  height: 2px;
}

.page-home .accordion__icon::after {
  top: 5px;
  bottom: 5px;
  left: 10px;
  width: 2px;
  transition: opacity 0.2s ease;
}

.page-home .accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  opacity: 0;
}

.page-home .accordion__panel {
  padding: 0 20px 20px;
}

.page-home .accordion__panel p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 收束行动区 ---------- */
.page-home .start__panel {
  display: grid;
  gap: clamp(22px, 3.4vw, 34px);
  padding: clamp(26px, 4.4vw, 48px);
  border-radius: var(--radius-lg);
}

.page-home .start__copy p:not(.eyebrow) {
  margin-top: 14px;
  max-width: 54ch;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.78;
}

.page-home .start__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 720px) {
  .page-home .version__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(26px, 4vw, 60px);
  }

  .page-home .summary__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-home .summary__figure {
    transform: translateY(calc(var(--home-nudge) * -1));
  }

  .page-home .rounds__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-home .rounds__figure {
    transform: translateY(var(--home-nudge));
  }

  .page-home .mobile__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
  }

  .page-home .faq__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  }

  .page-home .version__timeline {
    padding-left: 34px;
  }

  .page-home .timeline::before {
    left: 11px;
  }

  .page-home .timeline__item::before {
    left: -31px;
  }

  .page-home .start__panel {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-home .start__actions {
    justify-content: flex-end;
  }
}

@media (max-width: 719px) {
  .page-home .scorecard {
    position: static;
    width: 100%;
    margin-top: 14px;
  }

  .page-home .hero__stage {
    padding-left: 0;
  }

  .page-home .hero__facts {
    gap: 14px;
  }
}

@media (max-width: 420px) {
  .page-home .hero__facts {
    grid-template-columns: 1fr;
  }

  .page-home .hero__facts li {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .summary__figure,
  .page-home .rounds__figure {
    transform: none;
  }

  .page-home .chapter-link,
  .page-home .chip,
  .page-home .accordion__icon::after,
  .page-home .text-link {
    transition: none;
  }
}