.page-home {
  --home-gutter: clamp(1.25rem, 4vw, 3.5rem);
  --home-flow: clamp(3.5rem, 7vw, 6.5rem);
}

/* ---------- 面包屑 ---------- */
.page-home .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding-top: clamp(1rem, 3vw, 1.75rem);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.page-home .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--blue-600);
}

.page-home .breadcrumb__item--now {
  color: var(--accent-soft);
}

/* ---------- 首屏：左右分屏 ---------- */
.page-home .hero {
  position: relative;
  padding-bottom: var(--home-flow);
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 60%;
  background:
    radial-gradient(60% 70% at 78% 20%, rgba(212, 175, 55, 0.14), transparent 70%),
    radial-gradient(45% 55% at 10% 0%, rgba(92, 138, 138, 0.14), transparent 72%);
  pointer-events: none;
}

.page-home .hero__stage {
  position: relative;
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  padding-top: clamp(1.75rem, 5vw, 3.5rem);
}

.page-home .hero__copy {
  max-width: 34rem;
}

.page-home .hero__copy h1 {
  margin: 1.25rem 0 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.25rem, 7.5vw, 4.5rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-home .hero__lead {
  margin: 1.5rem 0 0;
  max-width: 32rem;
  font-size: clamp(1rem, 2.4vw, 1.125rem);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.page-home .hero__hint {
  margin: 1.5rem 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--accent);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-home .hero__visual {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) 4px;
  overflow: hidden;
  background: linear-gradient(160deg, var(--blue-800), var(--blue-900) 65%);
  box-shadow: 0 30px 70px -40px rgba(0, 0, 0, 0.9);
}

.page-home .hero__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 4;
  opacity: 0.85;
  mix-blend-mode: luminosity;
}

.page-home .hero__ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(212, 175, 55, 0.35);
  pointer-events: none;
}

.page-home .hero__ring--a {
  width: 58%;
  aspect-ratio: 1;
  right: -14%;
  bottom: -12%;
}

.page-home .hero__ring--b {
  width: 34%;
  aspect-ratio: 1;
  left: -6%;
  top: 8%;
  border-color: rgba(92, 138, 138, 0.4);
}

.page-home .hero__caption {
  position: absolute;
  left: 1.25rem;
  bottom: 1.25rem;
  color: var(--accent-soft);
}

.page-home .hero__strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(2rem, 5vw, 3.25rem) auto 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-home .hero__strip li {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem 1rem;
  background: var(--bg-elevated);
}

.page-home .hero__num {
  font-family: var(--font-numeric);
  font-weight: 600;
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  line-height: 1;
  color: var(--accent);
}

.page-home .hero__num-suffix {
  font-size: 0.65em;
  margin-left: 0.15em;
}

.page-home .hero__unit {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

/* ---------- 品牌站选择 ---------- */
.page-home .board {
  position: relative;
  padding: var(--home-flow) 0;
  background:
    linear-gradient(180deg, rgba(18, 43, 66, 0.7), rgba(7, 20, 32, 0.95)),
    var(--bg);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .board__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
}

.page-home .board__intro h2 {
  margin: 1rem 0 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.75rem, 5.5vw, 2.75rem);
  line-height: 1.3;
  color: var(--text);
}

.page-home .board__text {
  margin: 1.25rem 0 1.75rem;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-home .board__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .board__dim {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(7, 20, 32, 0.5);
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), background 0.35s var(--ease);
}

.page-home .board__dim:hover,
.page-home .board__dim:focus-within {
  transform: translateY(-3px);
  border-color: var(--accent);
  background: rgba(212, 175, 55, 0.07);
}

.page-home .board__idx {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.page-home .board__name {
  font-size: 0.9375rem;
  color: var(--text);
}

.page-home .board__note {
  margin: 1.5rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--line);
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 三条主线 ---------- */
.page-home .tracks {
  padding: var(--home-flow) 0;
}

.page-home .tracks__head {
  max-width: 40rem;
}

.page-home .tracks__head h2 {
  margin: 1rem 0 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.75rem, 5.5vw, 2.75rem);
  line-height: 1.3;
  color: var(--text);
}

.page-home .tracks__sub {
  margin: 1rem 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-home .tracks__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: clamp(2rem, 5vw, 3rem);
}

.page-home .track {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.page-home .track:hover {
  transform: translateY(-6px);
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: 0 26px 50px -34px rgba(212, 175, 55, 0.5);
}

.page-home .track__media {
  position: relative;
  background: var(--blue-900);
}

.page-home .track__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  opacity: 0.9;
}

.page-home .track__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.5rem;
}

.page-home .track__body h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.375rem;
  line-height: 1.4;
  color: var(--text);
}

.page-home .track__body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-home .track__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--jade) !important;
}

.page-home .track__link {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  align-self: flex-start;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-home .track__link:hover {
  color: var(--accent-soft);
  border-bottom-color: var(--accent-soft);
}

/* ---------- 四步时间轴 ---------- */
.page-home .steps {
  padding: var(--home-flow) 0;
  background: linear-gradient(180deg, rgba(11, 28, 44, 0.6), rgba(7, 20, 32, 0.2));
}

.page-home .steps__head h2 {
  margin: 1rem 0 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.75rem, 5.5vw, 2.75rem);
  line-height: 1.3;
  color: var(--text);
}

.page-home .steps__list {
  position: relative;
  display: grid;
  gap: 1.5rem;
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  padding: 0 0 0 1.75rem;
  list-style: none;
}

.page-home .steps__list::before {
  content: "";
  position: absolute;
  left: 0.3125rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--accent), rgba(92, 138, 138, 0.5));
}

.page-home .step {
  position: relative;
  padding: 1.25rem 1.25rem 1.25rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(18, 43, 66, 0.55);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}

.page-home .step:hover {
  transform: translateX(5px);
  border-color: rgba(212, 175, 55, 0.45);
}

.page-home .step__dot {
  position: absolute;
  left: -1.75rem;
  top: 1.6rem;
  width: 0.6875rem;
  height: 0.6875rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.16);
}

.page-home .step__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--accent-soft);
}

.page-home .step__title {
  margin: 0.5rem 0 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1875rem;
  line-height: 1.45;
  color: var(--text);
}

.page-home .step__text {
  margin: 0.5rem 0 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-home .step__link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--jade);
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

.page-home .step__link:hover {
  color: var(--accent-soft);
}

/* ---------- 更新节奏 ---------- */
.page-home .pulse {
  padding: var(--home-flow) 0;
}

.page-home .pulse__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

.page-home .pulse__copy h2 {
  margin: 1rem 0 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.75rem, 5.5vw, 2.75rem);
  line-height: 1.3;
  color: var(--text);
}

.page-home .pulse__copy p {
  margin: 1.25rem 0 0;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-home .pulse__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-home .pulse__cell {
  padding: 1.5rem 1.25rem;
  background: var(--bg-elevated);
}

.page-home .pulse__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--jade);
}

.page-home .pulse__v {
  margin: 0.65rem 0 0;
  font-family: var(--font-numeric);
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--accent);
}

.page-home .pulse__d {
  margin: 0.65rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 会员中心 ---------- */
.page-home .member {
  padding: var(--home-flow) 0;
  background: linear-gradient(180deg, rgba(92, 138, 138, 0.09), rgba(7, 20, 32, 0));
  border-top: 1px solid var(--line);
}

.page-home .member__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3.25rem);
}

.page-home .member__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--blue-800);
}

.page-home .member__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  opacity: 0.86;
}

.page-home .member__body h2 {
  margin: 1rem 0 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.75rem, 5.5vw, 2.75rem);
  line-height: 1.3;
  color: var(--text);
}

.page-home .member__lead {
  margin: 1.25rem 0 0;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-home .member__cards {
  display: grid;
  gap: 0.75rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-home .member__card {
  padding: 1rem 1.15rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  background: rgba(18, 43, 66, 0.55);
}

.page-home .member__card h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--text);
}

.page-home .member__card p {
  margin: 0.4rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-home .member__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* ---------- 收束 ---------- */
.page-home .outro {
  padding: var(--home-flow) 0 calc(var(--home-flow) * 0.5);
}

.page-home .outro__inner {
  padding: clamp(1.75rem, 5vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(212, 175, 55, 0.13), transparent 62%),
    var(--bg-elevated);
}

.page-home .outro__inner h2 {
  margin: 1rem 0 0;
  max-width: 34rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  line-height: 1.35;
  color: var(--text);
}

.page-home .outro__text {
  margin: 1.25rem 0 0;
  max-width: 42rem;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-home .outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-top: 1.75rem;
}

.page-home .outro__links a {
  font-size: 0.9375rem;
  color: var(--accent);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.35);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-home .outro__links a:hover {
  color: var(--accent-soft);
  border-bottom-color: var(--accent-soft);
}

.page-home .outro__contact {
  margin: 1.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 响应式 ---------- */
@media (min-width: 48em) {
  .page-home .hero__stage {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: center;
  }

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

  .page-home .board__inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

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

  .page-home .steps__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem 2.5rem;
  }

  .page-home .pulse__inner {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .page-home .member__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
  }

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

@media (min-width: 64em) {
  .page-home .tracks__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .track--wide {
    grid-row: span 2;
  }

  .page-home .track--wide .track__media img {
    aspect-ratio: 16 / 10;
  }

  .page-home .hero__strip li {
    padding: 1.5rem 1.35rem;
  }

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

  .page-home .steps__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding-left: 0;
    padding-top: 2.25rem;
    gap: 1.5rem;
  }

  .page-home .steps__list::before {
    left: 0.5rem;
    right: 0.5rem;
    top: 0.3125rem;
    bottom: auto;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, var(--accent), rgba(92, 138, 138, 0.5));
  }

  .page-home .step {
    padding: 1.5rem 1.35rem;
  }

  .page-home .step__dot {
    left: 1.35rem;
    top: -2.25rem;
  }

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

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .track,
  .page-home .step,
  .page-home .board__dim {
    transition: none;
  }

  .page-home .track:hover,
  .page-home .step:hover,
  .page-home .board__dim:hover {
    transform: none;
  }
}