/* ===== 页面专属：home ===== */
.page-home {
  --split-bg-left: linear-gradient(135deg, var(--clr-primary-900) 0%, var(--clr-primary-700) 100%);
  --split-bg-right: linear-gradient(135deg, var(--clr-primary-700) 0%, var(--clr-primary-500) 100%);
  --card-border-accent: var(--clr-accent);
  --step-circle-size: 2.5rem;
  --bar-radius: 0.25rem;
  --trust-bg: var(--clr-neutral-100);
  display: block;
  width: 100%;
}

/* 分屏首屏 */
.page-home__hero {
  position: relative;
  background: var(--split-bg-left);
  overflow: hidden;
}

.page-home__hero-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-top: 2rem;
  padding-bottom: 2.5rem;
}

.page-home__hero-left,
.page-home__hero-right {
  flex: 1;
  padding: 1.5rem;
  border-radius: 0.75rem;
  position: relative;
  z-index: 2;
}

.page-home__hero-left {
  background: rgba(10, 25, 47, 0.75);
  backdrop-filter: blur(4px);
  border: 1px solid var(--clr-primary-500);
}

.page-home__hero-right {
  background: rgba(26, 58, 107, 0.75);
  backdrop-filter: blur(4px);
  border: 1px solid var(--clr-accent);
}

.page-home__label {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.tag--accent {
  background: var(--clr-accent);
  color: var(--clr-primary-900);
  border-color: var(--clr-accent);
}

.page-home__main-title {
  font-size: var(--fs-heading-lg);
  font-weight: var(--fw-heading);
  line-height: 1.15;
  color: var(--clr-neutral-100);
  margin: 0 0 1rem 0;
}

.page-home__section-title {
  font-size: var(--fs-heading-md);
  font-weight: var(--fw-heading);
  line-height: 1.2;
  color: var(--clr-neutral-100);
  margin: 0 0 0.75rem 0;
}

.page-home__hero-desc {
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--clr-primary-300);
  margin: 0 0 1.25rem 0;
  max-width: 38em;
}

.page-home__steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-bottom: 1.5rem;
}

.page-home__step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-home__step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--step-circle-size);
  height: var(--step-circle-size);
  border-radius: 50%;
  background: var(--clr-accent);
  color: var(--clr-primary-900);
  font-weight: 800;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.page-home__step-text {
  color: var(--clr-neutral-100);
  font-weight: 600;
  font-size: 0.95rem;
}

.page-home__hero-img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 0.5rem;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(100, 181, 246, 0.25);
}

.page-home__hero-link {
  display: inline-block;
  font-weight: 600;
}

/* 速度图表（纯CSS） */
.page-home__speed-chart {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: rgba(0,0,0,0.2);
  border-radius: 0.5rem;
}

.page-home__speed-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.page-home__speed-version {
  width: 6em;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--clr-accent-light);
  letter-spacing: 0.04em;
}

.page-home__speed-bar {
  height: 1.5rem;
  background: var(--clr-accent);
  border-radius: var(--bar-radius);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 0.5rem;
  font-weight: 800;
  font-size: 0.8rem;
  color: var(--clr-primary-900);
  min-width: 3rem;
  transition: width var(--duration-m) ease;
}

.page-home__speed-bar--fast {
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-light));
}

.page-home__speed-bar--stable {
  background: var(--clr-primary-300);
  color: var(--clr-primary-900);
}

.page-home__speed-label {
  width: 100%;
  font-size: 0.8rem;
  color: var(--clr-primary-300);
  letter-spacing: 0.02em;
}

/* 分割装饰 */
.page-home__hero-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-primary-500), var(--clr-accent));
  z-index: 3;
}

/* 适配清单速览 */
.page-home__versions {
  background: var(--clr-primary-900);
  padding: 3rem 0;
}

.page-home__versions-title {
  text-align: center;
  margin-bottom: 0.5rem;
}

.page-home__versions-desc {
  text-align: center;
  color: var(--clr-primary-300);
  max-width: 32em;
  margin: 0 auto 2rem auto;
  font-size: 0.95rem;
  line-height: 1.5;
}

.page-home__version-cards {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.page-home__version-card {
  background: var(--clr-primary-700);
  border: 1px solid var(--clr-primary-500);
  border-top: 4px solid var(--clr-accent);
  transition: transform var(--duration-m) ease, box-shadow var(--duration-m) ease;
  cursor: default;
}

.page-home__version-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.page-home__version-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.page-home__version-icon {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 0.25rem;
  flex-shrink: 0;
}

.page-home__version-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
}

.page-home__version-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--clr-accent-light);
  margin-bottom: 0.5rem;
}

.page-home__version-body {
  font-size: 0.9rem;
  color: var(--clr-neutral-100);
  line-height: 1.5;
}

.page-home__option-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-home__option-list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.9rem;
  color: var(--clr-primary-300);
}

.page-home__option-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--clr-accent);
  font-weight: 700;
}

.page-home__version-footer {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--clr-primary-500);
  display: flex;
  justify-content: flex-end;
}

.page-home__option-count {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-accent);
  letter-spacing: 0.04em;
}

.page-home__versions-more {
  text-align: center;
}

/* 品牌信赖声明 */
.page-home__trust {
  background: var(--trust-bg);
  padding: 3rem 0;
}

.page-home__trust-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.page-home__trust-icon {
  width: 80px;
  height: 80px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--clr-primary-900);
  padding: 0.5rem;
}

.page-home__trust-content {
  max-width: 36em;
}

.page-home__trust-title {
  color: var(--clr-primary-900);
  margin-bottom: 0.75rem;
}

.page-home__trust-text {
  color: var(--clr-primary-700);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0 0 1.25rem 0;
}

.page-home__trust-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  justify-content: center;
}

.page-home__trust-links .btn--outline {
  border-color: var(--clr-primary-500);
  color: var(--clr-primary-700);
}

.page-home__trust-links .btn--outline:hover {
  background: var(--clr-primary-500);
  color: var(--clr-neutral-100);
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-home__hero-inner {
    flex-direction: row;
    gap: 1.5rem;
    padding-top: 3rem;
    padding-bottom: 3.5rem;
  }

  .page-home__hero-left,
  .page-home__hero-right {
    padding: 2rem;
  }

  .page-home__steps {
    gap: 1rem 1.5rem;
  }

  .page-home__speed-item {
    flex-wrap: nowrap;
  }

  .page-home__speed-label {
    width: auto;
    margin-left: auto;
  }

  .page-home__version-cards {
    flex-direction: row;
    gap: 2rem;
  }

  .page-home__version-card {
    flex: 1;
  }

  .page-home__trust-inner {
    flex-direction: row;
    text-align: left;
    gap: 2.5rem;
  }

  .page-home__trust-icon {
    width: 100px;
    height: 100px;
  }

  .page-home__trust-links {
    justify-content: flex-start;
  }
}

@media (min-width: 1024px) {
  .page-home__hero-inner {
    gap: 2.5rem;
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .page-home__hero-left,
  .page-home__hero-right {
    padding: 2.5rem;
  }

  .page-home__main-title {
    font-size: 3rem;
  }

  .page-home__version-cards {
    gap: 3rem;
  }

  .page-home__trust {
    padding: 4rem 0;
  }
}

@media (max-width: 767px) {
  .page-home__hero-img {
    max-height: 220px;
    width: 100%;
    object-position: center;
  }

  .page-home__version-icon {
    width: 40px;
    height: 40px;
  }

  .page-home__trust-icon {
    width: 64px;
    height: 64px;
  }

  .page-home__speed-bar {
    height: 1.25rem;
    font-size: 0.7rem;
  }

  .page-home__step-num {
    width: 2rem;
    height: 2rem;
    font-size: 0.8rem;
  }
}