.page-home {
  --home-hero-glow: rgba(255, 107, 44, 0.16);
  --home-grid: rgba(255, 255, 255, 0.06);
  --home-glass: rgba(255, 255, 255, 0.07);
  --home-muted: #9FB3C8;

  background: var(--primary-blue);
  color: var(--text-light);
  overflow-x: hidden;
}

/* ========== 01 封面索引 ========== */
.home-hero {
  position: relative;
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(2.5rem, 5vw, 4.5rem);
  background:
    radial-gradient(ellipse 90% 70% at 12% 18%, rgba(16, 42, 67, 0.75) 0%, transparent 62%),
    radial-gradient(ellipse 46% 42% at 86% 82%, var(--home-hero-glow) 0%, transparent 70%),
    linear-gradient(180deg, var(--primary-blue) 0%, var(--deep-blue-glow) 100%);
}

.home-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.home-hero__kicker {
  color: var(--orange-accent);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin-bottom: 1rem;
}

.home-hero__title {
  margin: 0 0 1.25rem;
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #ffffff;
  background: linear-gradient(120deg, #ffffff 30%, var(--soft-orange-gradient) 110%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.home-hero__lead {
  max-width: 56ch;
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-light);
  opacity: 0.9;
}

.home-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 0 0 2rem;
  padding: 1.25rem;
  background: var(--home-glass);
  border: 1px solid var(--home-grid);
  border-radius: 0.75rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.home-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.home-hero__stat-num {
  order: 1;
  margin: 0;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.1;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.home-hero__stat-label {
  order: 2;
  font-size: 0.75rem;
  color: var(--home-muted);
  letter-spacing: 0.05em;
}

.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.home-hero__visual {
  position: relative;
  margin: 0;
}

.home-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 1rem;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.home-hero__badge {
  position: absolute;
  left: 1.5rem;
  bottom: 2.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: #ffffff;
  background: rgba(10, 27, 42, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.home-hero__badge-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--orange-accent);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, 0.2);
}

.home-hero__caption {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  text-align: center;
  letter-spacing: 0.06em;
  color: var(--home-muted);
}

/* ========== 02 索引面板 ========== */
.home-index {
  position: relative;
  padding: 3.5rem 0 4.5rem;
  background:
    linear-gradient(rgba(10, 27, 42, 0.94), rgba(10, 27, 42, 0.94)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0, rgba(255, 255, 255, 0.02) 1px, transparent 1px, transparent 14px);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.home-index__head {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.home-index__head-copy {
  max-width: 72ch;
}

.home-index__panel {
  position: relative;
  padding: 1rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.11) 0%, rgba(255, 255, 255, 0.04) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.home-index__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  overflow: hidden;
  white-space: nowrap;
}

.home-index__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.home-index__tab {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  cursor: pointer;
  transition:
    background var(--transition-duration) var(--transition-ease),
    border-color var(--transition-duration) var(--transition-ease),
    color var(--transition-duration) var(--transition-ease),
    transform var(--transition-duration) var(--transition-ease);
}

.home-index__tab:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

#idx-version:checked ~ .home-index__tabs label[for="idx-version"],
#idx-service:checked ~ .home-index__tabs label[for="idx-service"],
#idx-device:checked ~ .home-index__tabs label[for="idx-device"],
#idx-guide:checked ~ .home-index__tabs label[for="idx-guide"],
#idx-brand:checked ~ .home-index__tabs label[for="idx-brand"],
#idx-download:checked ~ .home-index__tabs label[for="idx-download"],
#idx-help:checked ~ .home-index__tabs label[for="idx-help"],
#idx-about:checked ~ .home-index__tabs label[for="idx-about"] {
  background: var(--orange-accent);
  border-color: var(--orange-accent);
  color: var(--primary-blue);
  font-weight: 700;
}

#idx-version:focus-visible ~ .home-index__tabs label[for="idx-version"],
#idx-service:focus-visible ~ .home-index__tabs label[for="idx-service"],
#idx-device:focus-visible ~ .home-index__tabs label[for="idx-device"],
#idx-guide:focus-visible ~ .home-index__tabs label[for="idx-guide"],
#idx-brand:focus-visible ~ .home-index__tabs label[for="idx-brand"],
#idx-download:focus-visible ~ .home-index__tabs label[for="idx-download"],
#idx-help:focus-visible ~ .home-index__tabs label[for="idx-help"],
#idx-about:focus-visible ~ .home-index__tabs label[for="idx-about"] {
  outline: 2px solid var(--orange-accent);
  outline-offset: 2px;
}

.home-index__panels {
  min-height: 9rem;
}

.home-index__panel-content {
  display: none;
}

#idx-version:checked ~ .home-index__panels .panel-version,
#idx-service:checked ~ .home-index__panels .panel-service,
#idx-device:checked ~ .home-index__panels .panel-device,
#idx-guide:checked ~ .home-index__panels .panel-guide,
#idx-brand:checked ~ .home-index__panels .panel-brand,
#idx-download:checked ~ .home-index__panels .panel-download,
#idx-help:checked ~ .home-index__panels .panel-help,
#idx-about:checked ~ .home-index__panels .panel-about {
  display: block;
}

.home-index__panel-label {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--home-muted);
}

.home-index__taglist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ========== 03 服务范围速览 ========== */
.home-scope {
  padding: 4rem 0;
  background: var(--background-gray);
  color: var(--text-dark);
}

.home-scope__head {
  margin-bottom: 2rem;
}

.home-scope__kicker {
  color: var(--orange-accent);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin-bottom: 0.75rem;
}

.home-scope__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.home-scope__intro {
  max-width: 62ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-dark);
  opacity: 0.86;
}

.home-scope__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.home-scope__chart {
  margin: 0;
}

.home-scope__chart img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  box-shadow: 0 12px 40px rgba(16, 42, 67, 0.12);
}

.home-scope__chart figcaption {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: rgba(27, 42, 58, 0.7);
}

.home-scope__docs {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem 1.25rem;
}

.home-scope__docs li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0;
  font-size: 0.875rem;
  border-bottom: 1px solid rgba(27, 42, 58, 0.08);
}

.home-scope__doc-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  flex: 0 0 auto;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--orange-accent);
  background: rgba(255, 107, 44, 0.1);
  border-radius: 999px;
}

.home-scope__more {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  color: var(--text-dark);
  opacity: 0.8;
}

.home-scope__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1.75rem;
  padding: 1.25rem;
  background: var(--primary-blue);
  border-radius: 0.75rem;
}

.home-scope__metric {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.home-scope__metric-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
}

.home-scope__metric-label {
  font-size: 0.75rem;
  color: var(--home-muted);
}

.home-scope__subscription {
  padding: 1.75rem;
  background: linear-gradient(145deg, var(--deep-blue-glow) 0%, var(--primary-blue) 100%);
  border-radius: 1rem;
  color: var(--text-light);
  box-shadow: 0 20px 60px rgba(10, 27, 42, 0.25);
}

.home-scope__sub-title {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.3;
}

.home-scope__sub-figure {
  margin: 0 0 1rem;
}

.home-scope__sub-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
}

.home-scope__sub-desc {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-light);
  opacity: 0.9;
}

.home-scope__sub-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.home-scope__sub-list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-light);
  opacity: 0.85;
}

.home-scope__sub-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--orange-accent);
}

.home-scope__cta {
  width: 100%;
  justify-content: center;
}

/* ========== 04 实时更新动态 ========== */
.home-updates {
  padding: 4rem 0;
  background: linear-gradient(180deg, var(--deep-blue-glow) 0%, var(--primary-blue) 100%);
}

.home-updates__head {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.home-updates__head-copy {
  max-width: 68ch;
}

.home-updates__signal {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  align-self: flex-start;
  padding: 0.5rem 1rem;
  background: rgba(255, 107, 44, 0.12);
  border: 1px solid rgba(255, 107, 44, 0.35);
  border-radius: 999px;
  color: var(--soft-orange-gradient);
  font-size: 0.8rem;
  font-weight: 600;
}

.home-updates__signal .status-dot {
  animation: home-pulse 2.4s ease-in-out infinite;
}

@keyframes home-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 44, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(255, 107, 44, 0); }
}

.home-updates__chart {
  margin-bottom: 2rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 0.75rem;
}

.home-updates__chart svg {
  display: block;
  width: 100%;
  height: auto;
}

.home-updates__grid-line {
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 1;
  fill: none;
}

.home-updates__area {
  fill: rgba(255, 107, 44, 0.14);
}

.home-updates__line {
  fill: none;
  stroke: var(--orange-accent);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.home-updates__peak {
  fill: var(--orange-accent);
}

.home-updates__label {
  fill: var(--soft-orange-gradient);
  font-size: 10px;
  font-family: var(--font-sans);
  font-weight: 700;
}

.home-updates__axis {
  fill: var(--text-light);
  font-size: 9px;
  font-family: var(--font-sans);
  opacity: 0.7;
}

.home-updates__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.home-updates__col {
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.75rem;
}

.home-updates__col-title {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.04em;
}

.home-updates__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.home-updates__list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.home-updates__list li:last-child {
  border-bottom: 0;
}

.home-updates__list a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-duration) var(--transition-ease);
}

.home-updates__list a:hover {
  color: var(--soft-orange-gradient);
}

.home-updates__meta {
  flex: 0 0 auto;
  font-size: 0.75rem;
  color: var(--home-muted);
}

/* ========== 05 新手引导 ========== */
.home-guide {
  padding: 4rem 0;
  background: var(--background-gray);
  color: var(--text-dark);
}

.home-guide__head {
  margin-bottom: 2rem;
}

.home-guide__kicker {
  color: var(--orange-accent);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin-bottom: 0.75rem;
}

.home-guide__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.home-guide__intro {
  max-width: 62ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-dark);
  opacity: 0.86;
}

.home-guide__steps {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.home-guide__step {
  position: relative;
  padding: 1.5rem;
  background: #ffffff;
  border-left: 4px solid var(--orange-accent);
  border-radius: 0.75rem;
  box-shadow: 0 8px 30px rgba(16, 42, 67, 0.08);
  transition:
    transform var(--transition-duration) var(--transition-ease),
    box-shadow var(--transition-duration) var(--transition-ease);
}

.home-guide__step:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(16, 42, 67, 0.14);
}

.home-guide__num {
  display: inline-block;
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--orange-accent);
}

.home-guide__step-title {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-dark);
}

.home-guide__step-desc {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--text-dark);
  opacity: 0.82;
}

.home-guide__step a {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(10, 27, 42, 0.25);
  transition:
    color var(--transition-duration) var(--transition-ease),
    border-color var(--transition-duration) var(--transition-ease);
}

.home-guide__step a:hover {
  color: var(--orange-accent);
  border-color: var(--orange-accent);
}

.home-guide__figure {
  margin: 0;
}

.home-guide__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  box-shadow: 0 12px 40px rgba(16, 42, 67, 0.12);
}

.home-guide__figure figcaption {
  margin-top: 0.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(27, 42, 58, 0.7);
}

/* ========== 响应式增强 ========== */
@media (min-width: 640px) {
  .home-hero__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .home-scope__docs {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .home-guide__steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .home-hero {
    padding-top: clamp(4rem, 8vw, 6.5rem);
    padding-bottom: clamp(3rem, 6vw, 5rem);
  }

  .home-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 3rem;
  }

  .home-hero__visual {
    order: 2;
  }

  .home-index__head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .home-index__panel {
    padding: 1.75rem;
  }

  .home-index__tabs {
    gap: 0.625rem;
    margin-bottom: 1.5rem;
  }

  .home-scope__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 2.5rem;
  }

  .home-scope__subscription {
    position: sticky;
    top: 2rem;
  }

  .home-updates__head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .home-guide__steps {
    grid-template-columns: repeat(5, 1fr);
    gap: 1.25rem;
  }

  .home-guide__step {
    padding: 1.75rem 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-updates__signal .status-dot {
    animation: none;
  }

  .home-guide__step:hover {
    transform: none;
  }

  .home-index__tab:hover {
    transform: none;
  }
}