/* ===== 页面专属样式：首页 .page-home ===== */
.page-home {
  --home-gold: #FFD700;
  --home-cyan: #00E5FF;
  --home-purple: #B388FF;
  --home-bg-deep: #0A192F;
  --home-bg-card: rgba(255,255,255,0.04);
  --home-border-light: rgba(255,255,255,0.08);
  --home-text-muted: #8899AA;
  --home-radius: 4px;
  --home-shadow: 0 2px 12px rgba(0,0,0,0.3);
  --home-transition: 0.35s ease;

  background-color: var(--home-bg-deep);
  color: var(--color-primary-text, #FFFFFF);
  font-family: var(--font-body, 'Inter', sans-serif);
  line-height: var(--lh-body, 1.6);
  overflow-x: hidden;
}

/* ===== 面包屑 ===== */
.page-home .breadcrumb {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 0.75rem 1rem 0;
  font-size: var(--fs-caption, 0.75rem);
  color: var(--home-text-muted);
  letter-spacing: 0.03em;
}
.page-home .breadcrumb-link {
  color: var(--home-cyan);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s);
}
.page-home .breadcrumb-link:hover {
  color: var(--home-gold);
}
.page-home .breadcrumb-sep {
  margin: 0 0.4em;
  color: var(--home-border-light);
}
.page-home .breadcrumb-current {
  color: var(--home-text-muted);
}

/* ===== 框景首屏 ===== */
.page-home .framed-viewport--home {
  position: relative;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 0 1rem 2rem;
  min-height: 70vh;
  display: flex;
  align-items: center;
}
.page-home .framed-viewport__inner {
  position: relative;
  width: 100%;
  border: 1px solid var(--home-border-light);
  background: linear-gradient(145deg, rgba(10,25,47,0.92), rgba(20,40,80,0.88));
  overflow: hidden;
  min-height: 60vh;
  display: flex;
  align-items: center;
}
.page-home .framed-viewport__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}
.page-home .framed-viewport__border {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.page-home .framed-viewport__scale {
  width: 100%;
  height: 100%;
}
.page-home .framed-viewport__content {
  position: relative;
  z-index: 2;
  padding: 3rem 2rem;
  width: 100%;
  max-width: 680px;
}
.page-home .framed-viewport__headline {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-xl, clamp(2.75rem,6vw,6rem));
  letter-spacing: var(--ls-heading, -0.02em);
  color: var(--home-gold);
  margin: 0 0 0.3em;
  line-height: 1.1;
}
.page-home .framed-viewport__subline {
  font-size: var(--fs-body, 1rem);
  color: var(--home-text-muted);
  margin: 0 0 2rem;
  letter-spacing: 0.04em;
}
.page-home .framed-viewport__cta {
  margin-top: 1.5rem;
}

/* 更新滚动列表 */
.page-home .updates-scroll {
  max-height: 280px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--home-gold) transparent;
  padding-right: 0.5rem;
}
.page-home .updates-scroll::-webkit-scrollbar {
  width: 4px;
}
.page-home .updates-scroll::-webkit-scrollbar-thumb {
  background: var(--home-gold);
  border-radius: 2px;
}
.page-home .updates-scroll__inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-home .update-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.6rem 0.8rem;
  background: var(--home-bg-card);
  border-left: 2px solid var(--home-gold);
  border-radius: 0 var(--home-radius) var(--home-radius) 0;
  transition: background var(--transition-fast, 0.2s), transform var(--transition-fast, 0.2s);
}
.page-home .update-item:hover {
  background: rgba(255,215,0,0.08);
  transform: translateX(4px);
}
.page-home .update-item__time {
  font-family: var(--font-caption, 'Inter', sans-serif);
  font-weight: var(--fw-caption, 300);
  font-size: var(--fs-caption, 0.75rem);
  color: var(--home-cyan);
  white-space: nowrap;
  flex-shrink: 0;
}
.page-home .update-item__desc {
  font-size: var(--fs-body, 0.9375rem);
  color: var(--color-text-body, #E0E0E0);
  line-height: 1.5;
}

/* ===== 区域通用 ===== */
.page-home .container {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 0 1rem;
}
.page-home .section {
  padding: var(--spacing-2xl, 6rem) 0;
}
.page-home .section-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-lg, clamp(2rem,4vw,3.5rem));
  letter-spacing: var(--ls-heading, -0.02em);
  color: var(--home-gold);
  margin: 0 0 0.3em;
  line-height: 1.2;
  position: relative;
  display: inline-block;
}
.page-home .section-title::after {
  content: '';
  display: block;
  width: 60%;
  height: 3px;
  background: var(--home-gold);
  margin-top: 0.4em;
  border-radius: 2px;
}
.page-home .section-intro {
  font-size: var(--fs-body, 1rem);
  color: var(--home-text-muted);
  margin: 0 0 2.5rem;
  max-width: 540px;
  line-height: 1.5;
}
.page-home .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.6em 1.4em;
  font-family: var(--font-special, 'Inter', sans-serif);
  font-weight: var(--fw-special, 500);
  font-size: var(--fs-special, 0.875rem);
  letter-spacing: var(--ls-special, 0.05em);
  border-radius: var(--home-radius);
  text-decoration: none;
  transition: all var(--transition-base, 0.35s);
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
}
.page-home .btn--gold {
  background: var(--home-gold);
  color: #0A192F;
  border-color: var(--home-gold);
}
.page-home .btn--gold:hover {
  background: transparent;
  color: var(--home-gold);
  box-shadow: inset 0 0 0 1px var(--home-gold);
}
.page-home .btn--outline {
  border-color: var(--home-gold);
  color: var(--home-gold);
}
.page-home .btn--outline:hover {
  background: var(--home-gold);
  color: #0A192F;
}

/* ===== 对角线分割 ===== */
.page-home .diagonal-divider {
  height: 3px;
  background: linear-gradient(135deg, var(--home-gold) 0%, var(--home-cyan) 50%, var(--home-purple) 100%);
  opacity: 0.3;
  margin: 0;
  transform: skewY(-1deg);
  transform-origin: left center;
}
.page-home .diagonal-divider--reverse {
  transform: skewY(1deg);
}

/* ===== 新版资料栏目 (三层目录) ===== */
.page-home .section--catalog {
  background: linear-gradient(180deg, rgba(10,25,47,1) 0%, rgba(15,30,55,0.98) 100%);
}
.page-home .catalog-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.page-home .catalog-layer {
  background: var(--home-bg-card);
  border: 1px solid var(--home-border-light);
  border-radius: var(--home-radius);
  overflow: hidden;
  transition: border-color var(--transition-base, 0.35s);
}
.page-home .catalog-layer:hover {
  border-color: rgba(255,215,0,0.3);
}
.page-home .catalog-layer__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
}
.page-home .catalog-layer__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--home-radius);
}
.page-home .catalog-layer__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-sm, clamp(1.125rem,1.8vw,1.5rem));
  color: var(--color-primary-text, #FFFFFF);
  margin: 0;
  flex: 1;
}
.page-home .catalog-layer__count {
  font-size: var(--fs-caption, 0.75rem);
  color: var(--home-text-muted);
  white-space: nowrap;
}
.page-home .catalog-layer__toggle {
  background: none;
  border: 1px solid var(--home-border-light);
  color: var(--home-cyan);
  font-size: var(--fs-caption, 0.75rem);
  padding: 0.3em 0.8em;
  border-radius: var(--home-radius);
  cursor: pointer;
  transition: all var(--transition-fast, 0.2s);
  font-family: var(--font-special, 'Inter', sans-serif);
  letter-spacing: 0.03em;
}
.page-home .catalog-layer__toggle:hover {
  background: var(--home-gold);
  color: #0A192F;
  border-color: var(--home-gold);
}
.page-home .catalog-layer__children {
  padding: 0 1.25rem 1rem;
}
.page-home .catalog-sublist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.page-home .catalog-link {
  color: var(--color-text-body, #E0E0E0);
  text-decoration: none;
  font-size: var(--fs-body, 0.9375rem);
  padding: 0.3em 0.6em;
  display: inline-block;
  border-radius: var(--home-radius);
  transition: all var(--transition-fast, 0.2s);
}
.page-home .catalog-link:hover {
  color: var(--home-gold);
  background: rgba(255,215,0,0.06);
  transform: translateX(4px);
}
.page-home .catalog-cta {
  text-align: center;
}

/* ===== 平板专访区 (横向滚动) ===== */
.page-home .section--feature {
  background: linear-gradient(180deg, rgba(15,30,55,0.98) 0%, rgba(10,25,47,1) 100%);
}
.page-home .feature-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}
.page-home .feature-cta {
  flex-shrink: 0;
}
.page-home .feature-scroll {
  position: relative;
  overflow: hidden;
}
.page-home .feature-scroll__track {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--home-gold) transparent;
  padding-bottom: 1rem;
  -webkit-overflow-scrolling: touch;
}
.page-home .feature-scroll__track::-webkit-scrollbar {
  height: 4px;
}
.page-home .feature-scroll__track::-webkit-scrollbar-thumb {
  background: var(--home-gold);
  border-radius: 2px;
}
.page-home .feature-card {
  flex: 0 0 300px;
  scroll-snap-align: start;
  background: var(--home-bg-card);
  border: 1px solid var(--home-border-light);
  border-radius: var(--home-radius);
  overflow: hidden;
  transition: transform var(--transition-base, 0.35s), box-shadow var(--transition-base, 0.35s);
}
.page-home .feature-card:hover {
  transform: scale(1.02);
  box-shadow: var(--home-shadow);
}
.page-home .feature-card__img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.page-home .feature-card__body {
  padding: 1rem 1.2rem 1.2rem;
}
.page-home .feature-card__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-sm, 1.125rem);
  margin: 0 0 0.4em;
  color: var(--home-gold);
}
.page-home .feature-card__text {
  font-size: var(--fs-body, 0.9375rem);
  color: var(--color-text-body, #E0E0E0);
  line-height: 1.5;
  margin: 0;
}
.page-home .feature-scroll__indicator {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1rem;
}
.page-home .feature-scroll__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--home-border-light);
  transition: background var(--transition-fast, 0.2s);
}
.page-home .feature-scroll__dot.is-active {
  background: var(--home-gold);
}

/* ===== 回访案例精选 ===== */
.page-home .section--cases {
  background: linear-gradient(180deg, rgba(10,25,47,1) 0%, rgba(15,30,55,0.97) 100%);
}
.page-home .cases-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}
.page-home .cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.page-home .case-card {
  background: var(--home-bg-card);
  border: 1px solid var(--home-border-light);
  border-radius: var(--home-radius);
  overflow: hidden;
  transition: transform var(--transition-base, 0.35s), box-shadow var(--transition-base, 0.35s);
  display: flex;
  flex-direction: column;
}
.page-home .case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--home-shadow);
  border-color: rgba(255,215,0,0.25);
}
.page-home .case-card__img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.page-home .case-card__body {
  padding: 1rem 1.2rem 1.2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.page-home .case-card__number {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-md, 1.5rem);
  color: var(--home-cyan);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.3em;
}
.page-home .case-card__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-sm, 1.125rem);
  color: var(--color-primary-text, #FFFFFF);
  margin: 0 0 0.4em;
}
.page-home .case-card__text {
  font-size: var(--fs-body, 0.9375rem);
  color: var(--color-text-body, #E0E0E0);
  line-height: 1.5;
  margin: 0 0 1rem;
  flex: 1;
}
.page-home .case-card__link {
  color: var(--home-gold);
  text-decoration: none;
  font-weight: var(--fw-special, 500);
  font-size: var(--fs-special, 0.875rem);
  transition: color var(--transition-fast, 0.2s);
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
}
.page-home .case-card__link:hover {
  color: var(--home-cyan);
}

/* ===== 资源下载 ===== */
.page-home .section--downloads {
  background: linear-gradient(180deg, rgba(15,30,55,0.97) 0%, rgba(10,25,47,1) 100%);
}
.page-home .downloads-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}
.page-home .downloads-filter__btn {
  background: transparent;
  border: 1px solid var(--home-border-light);
  color: var(--home-text-muted);
  padding: 0.4em 1.2em;
  border-radius: var(--home-radius);
  cursor: pointer;
  font-family: var(--font-special, 'Inter', sans-serif);
  font-size: var(--fs-special, 0.875rem);
  letter-spacing: 0.03em;
  transition: all var(--transition-fast, 0.2s);
}
.page-home .downloads-filter__btn.is-active,
.page-home .downloads-filter__btn:hover {
  border-color: var(--home-gold);
  color: var(--home-gold);
  background: rgba(255,215,0,0.06);
}
.page-home .downloads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.page-home .download-card {
  background: var(--home-bg-card);
  border: 1px solid var(--home-border-light);
  border-radius: var(--home-radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base, 0.35s), box-shadow var(--transition-base, 0.35s);
}
.page-home .download-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--home-shadow);
  border-color: rgba(255,215,0,0.2);
}
.page-home .download-card__icon {
  margin-bottom: 0.75rem;
}
.page-home .download-card__title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 700);
  font-size: var(--fs-heading-sm, 1.125rem);
  color: var(--color-primary-text, #FFFFFF);
  margin: 0 0 0.3em;
}
.page-home .download-card__meta {
  font-size: var(--fs-caption, 0.75rem);
  color: var(--home-text-muted);
  display: block;
  margin-bottom: 0.3em;
}
.page-home .download-card__tag {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--home-cyan);
  background: rgba(0,229,255,0.1);
  padding: 0.15em 0.6em;
  border-radius: 2px;
  margin-bottom: 1rem;
  align-self: flex-start;
}
.page-home .download-card__btn {
  margin-top: auto;
  align-self: flex-start;
}
.page-home .downloads-cta {
  text-align: center;
}

/* ===== 信任声明 ===== */
.page-home .trust-statement {
  padding: 1.5rem 1rem;
  text-align: center;
  font-size: var(--fs-caption, 0.75rem);
  color: var(--home-text-muted);
  border-top: 1px solid var(--home-border-light);
  margin-top: 0;
}

/* ===== 移动端优先适配 ===== */
@media (max-width: 767px) {
  .page-home .framed-viewport--home {
    min-height: auto;
    padding: 0 0.5rem 1.5rem;
  }
  .page-home .framed-viewport__inner {
    min-height: auto;
  }
  .page-home .framed-viewport__content {
    padding: 2rem 1.25rem;
  }
  .page-home .framed-viewport__headline {
    font-size: clamp(1.8rem, 8vw, 2.75rem);
  }
  .page-home .framed-viewport__subline {
    font-size: var(--fs-body, 0.9375rem);
  }
  .page-home .updates-scroll {
    max-height: 200px;
  }
  .page-home .section {
    padding: var(--spacing-xl, 4rem) 0;
  }
  .page-home .section-title {
    font-size: var(--fs-heading-md, 1.5rem);
  }
  .page-home .cases-grid {
    grid-template-columns: 1fr;
  }
  .page-home .downloads-grid {
    grid-template-columns: 1fr;
  }
  .page-home .feature-card {
    flex: 0 0 260px;
  }
  .page-home .feature-card__img {
    height: 160px;
  }
  .page-home .catalog-layer__header {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .page-home .catalog-layer__toggle {
    margin-left: auto;
  }
  .page-home .feature-header,
  .page-home .cases-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ===== 桌面端增强 ===== */
@media (min-width: 768px) {
  .page-home .framed-viewport__inner {
    border-width: 1px;
  }
  .page-home .catalog-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
  }
  .page-home .catalog-layer {
    border-width: 1px;
  }
  .page-home .cases-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-home .downloads-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-home .feature-scroll__track {
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-home .cases-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-home .downloads-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-home .framed-viewport__content {
    padding: 4rem 3rem;
  }
}