.page-home {
  position: relative;
  background: var(--night);
  color: var(--snow);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: clip;
}

.page-home .eyebrow {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-home .mono {
  font-family: var(--f-mono);
  letter-spacing: 0.06em;
}

.page-home .section-heading {
  margin: 12px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.28;
  letter-spacing: 0.025em;
  color: var(--snow);
}

.page-home .lede {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--rock);
  max-width: 46ch;
}

/* ---------- 01 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: 40px 0 56px;
  isolation: isolate;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(190deg, rgba(20, 44, 78, 0) 0 44%, rgba(20, 44, 78, 0.9) 44.4% 100%),
    radial-gradient(120% 78% at 90% 4%, rgba(227, 169, 60, 0.14), rgba(227, 169, 60, 0) 62%);
}

.page-home .hero__grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

.page-home .hero__title {
  margin: 14px 0 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 32px;
  line-height: 1.18;
  letter-spacing: 0.03em;
  color: var(--snow);
}

.page-home .hero__lede {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(242, 245, 248, 0.82);
  max-width: 40ch;
}

.page-home .hero__return {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 44px;
  margin-top: 32px;
  padding: 20px 22px;
  border: 1px solid rgba(227, 169, 60, 0.42);
  border-radius: var(--radius);
  background: linear-gradient(118deg, rgba(227, 169, 60, 0.18), rgba(227, 169, 60, 0.03) 62%);
  text-decoration: none;
  color: var(--snow);
  transition: transform var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}

.page-home .hero__return:hover,
.page-home .hero__return:focus-visible {
  transform: translateY(-4px);
  background: linear-gradient(118deg, rgba(227, 169, 60, 0.3), rgba(227, 169, 60, 0.08) 62%);
  border-color: var(--orange);
}

.page-home .hero__return:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-home .hero__return-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .hero__return-tag {
  font-size: 13px;
  color: var(--gold);
}

.page-home .hero__return-title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.page-home .hero__return-note {
  font-size: 14px;
  color: rgba(242, 245, 248, 0.7);
}

.page-home .hero__return-go {
  flex: 0 0 auto;
  font-size: 24px;
  line-height: 1;
  color: var(--gold);
}

/* 三枚主导航标签 */
.page-home .hero-tabs {
  position: relative;
  margin-top: 30px;
}

.page-home .hero-tabs__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-home .hero-tabs__strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.page-home .hero-tabs__tab {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  min-height: 44px;
  padding: 12px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast);
  -webkit-tap-highlight-color: transparent;
}

.page-home .hero-tabs__no {
  font-size: 18px;
  line-height: 1.2;
  color: rgba(242, 245, 248, 0.32);
  transition: color var(--t-fast);
}

.page-home .hero-tabs__name {
  font-size: 13px;
  line-height: 1.5;
  color: rgba(242, 245, 248, 0.72);
  transition: color var(--t-fast);
}

.page-home .hero-tabs__input:nth-of-type(1):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(1),
.page-home .hero-tabs__input:nth-of-type(2):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(2),
.page-home .hero-tabs__input:nth-of-type(3):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(3) {
  background: rgba(241, 128, 74, 0.14);
  border-color: var(--orange);
}

.page-home .hero-tabs__input:nth-of-type(1):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(1) .hero-tabs__no,
.page-home .hero-tabs__input:nth-of-type(2):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(2) .hero-tabs__no,
.page-home .hero-tabs__input:nth-of-type(3):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(3) .hero-tabs__no {
  color: var(--gold);
}

.page-home .hero-tabs__input:nth-of-type(1):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(1) .hero-tabs__name,
.page-home .hero-tabs__input:nth-of-type(2):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(2) .hero-tabs__name,
.page-home .hero-tabs__input:nth-of-type(3):checked ~ .hero-tabs__strip .hero-tabs__tab:nth-child(3) .hero-tabs__name {
  color: var(--snow);
}

.page-home .hero-tabs__input:nth-of-type(1):focus-visible ~ .hero-tabs__strip .hero-tabs__tab:nth-child(1),
.page-home .hero-tabs__input:nth-of-type(2):focus-visible ~ .hero-tabs__strip .hero-tabs__tab:nth-child(2),
.page-home .hero-tabs__input:nth-of-type(3):focus-visible ~ .hero-tabs__strip .hero-tabs__tab:nth-child(3) {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-home .hero-tabs__panels {
  margin-top: 14px;
  min-height: 48px;
}

.page-home .hero-tabs__panel {
  display: none;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock);
}

.page-home .hero-tabs__input:nth-of-type(1):checked ~ .hero-tabs__panels .hero-tabs__panel[data-panel="a"],
.page-home .hero-tabs__input:nth-of-type(2):checked ~ .hero-tabs__panels .hero-tabs__panel[data-panel="b"],
.page-home .hero-tabs__input:nth-of-type(3):checked ~ .hero-tabs__panels .hero-tabs__panel[data-panel="c"] {
  display: block;
}

/* 首屏视觉 */
.page-home .hero__visual {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--deep);
}

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

.page-home .hero__trace {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.75;
}

/* ---------- 02 动线变化 ---------- */
.page-home .path,
.page-home .cross,
.page-home .cadence,
.page-home .help {
  padding: 60px 0;
}

.page-home .path__head,
.page-home .help__head {
  max-width: 60ch;
}

.page-home .path__grid {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}

.page-home .path__card {
  position: relative;
  padding: 26px 22px 28px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--clay);
  border-radius: var(--radius);
  background: var(--glass);
  transition: transform var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}

.page-home .path__card--now {
  border-top-color: var(--gold);
  background: linear-gradient(160deg, rgba(227, 169, 60, 0.1), rgba(242, 245, 248, 0.05) 58%);
}

.page-home .path__card--data {
  border-top-color: var(--moss);
}

.page-home .path__card:hover {
  transform: translateY(-4px);
  background: var(--glass-hover);
  border-left-color: var(--line-strong);
  border-right-color: var(--line-strong);
  border-bottom-color: var(--line-strong);
}

.page-home .path__no {
  margin: 0;
  font-size: 13px;
  color: var(--gold);
}

.page-home .path__card h3 {
  margin: 10px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--snow);
}

.page-home .path__steps {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-home .path__steps li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 245, 248, 0.78);
}

.page-home .path__steps .mono {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--rock);
}

.page-home .path__note {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--gold);
}

.page-home .path__stats {
  margin: 16px 0 0;
}

.page-home .path__stats > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.page-home .path__stats dt {
  font-size: 14px;
  color: var(--rock);
}

.page-home .path__stats dd {
  margin: 0;
  font-size: 18px;
  color: var(--gold);
}

/* ---------- 03 跨端标签 ---------- */
.page-home .cross {
  border-top: 1px solid var(--line);
}

.page-home .cross__grid {
  display: grid;
  gap: 32px;
}

.page-home .cross__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-home .cross__list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.page-home .cross__idx {
  flex: 0 0 auto;
  padding-top: 5px;
  font-size: 13px;
  color: var(--gold);
}

.page-home .cross__list h3 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--snow);
}

.page-home .cross__list p {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

.page-home .cross__link {
  margin-top: 30px;
}

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

.page-home .cross__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-home .cross__caption {
  margin-top: 14px;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 04 更新节奏 ---------- */
.page-home .cadence {
  background: var(--deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .cadence__grid {
  display: grid;
  gap: 32px;
}

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

.page-home .cadence__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 15 / 8;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-home .cadence__list {
  margin: 30px 0 0;
  display: grid;
}

.page-home .cadence__row {
  display: grid;
  gap: 4px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-home .cadence__row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-home .cadence__row dt {
  font-size: 13px;
  color: var(--gold);
}

.page-home .cadence__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(242, 245, 248, 0.82);
}

.page-home .cadence__link {
  margin-top: 30px;
}

/* ---------- 05 遇到问题 ---------- */
.page-home .help__grid {
  display: grid;
  gap: 18px;
  margin-top: 40px;
}

.page-home .help__card {
  display: block;
  min-height: 44px;
  padding: 26px 22px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  text-decoration: none;
  color: var(--snow);
  transition: transform var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}

.page-home .help__card:hover,
.page-home .help__card:focus-visible {
  transform: translateY(-4px);
  background: var(--glass-hover);
  border-color: rgba(241, 128, 74, 0.55);
}

.page-home .help__card:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-home .help__no {
  display: block;
  font-size: 13px;
  color: var(--gold);
}

.page-home .help__card h3 {
  margin: 12px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.page-home .help__card p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

.page-home .help__go {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-home .help__more {
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
  max-width: 62ch;
}

/* ---------- 06 收束 ---------- */
.page-home .closing {
  position: relative;
  margin-top: 20px;
  padding: 72px 0 80px;
  overflow: hidden;
  isolation: isolate;
}

.page-home .closing__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  opacity: 0.4;
}

.page-home .closing::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 27, 51, 0.5), rgba(11, 27, 51, 0.94) 62%, var(--night));
}

.page-home .closing__inner {
  max-width: 720px;
}

.page-home .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

/* ---------- 中屏及以上 ---------- */
@media (min-width: 700px) {
  .page-home .cadence__row {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }

  .page-home .help__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-home .section-heading {
    font-size: 40px;
    line-height: 1.22;
  }

  .page-home .lede {
    font-size: 17px;
  }

  .page-home .hero {
    padding: 64px 0 88px;
  }

  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
  }

  .page-home .hero__title {
    font-size: 56px;
    line-height: 1.12;
  }

  .page-home .hero__shot {
    aspect-ratio: 16 / 10;
  }

  .page-home .path,
  .page-home .cross,
  .page-home .cadence,
  .page-home .help {
    padding: 96px 0;
  }

  .page-home .path__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    align-items: start;
    margin-top: 56px;
  }

  .page-home .path__card:nth-child(2) {
    margin-top: 56px;
  }

  .page-home .path__card:nth-child(3) {
    margin-top: 22px;
  }

  .page-home .cross__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    gap: 56px;
    align-items: center;
  }

  .page-home .cadence__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 56px;
    align-items: center;
  }

  .page-home .help__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
    align-items: start;
  }

  .page-home .help__card:nth-child(2) {
    margin-top: 40px;
  }

  .page-home .help__card:nth-child(3) {
    margin-top: 14px;
  }
}

@media (min-width: 1200px) {
  .page-home .hero {
    padding: 80px 0 104px;
  }

  .page-home .hero__grid {
    gap: 72px;
  }
}

/* ---------- 低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .hero__return,
  .page-home .hero-tabs__tab,
  .page-home .path__card,
  .page-home .help__card {
    transition: background var(--t-fast), border-color var(--t-fast), opacity var(--t-fast);
  }

  .page-home .hero__return:hover,
  .page-home .hero__return:focus-visible,
  .page-home .path__card:hover,
  .page-home .help__card:hover,
  .page-home .help__card:focus-visible {
    transform: none;
  }
}