/* ===== 页面专属样式：page-home ===== */
.page-home {
  --hero-track-width: 90px;
  --hero-min-height: 640px;
  --card-radius: 12px;
  --table-radius: 10px;
  --nav-card-min-height: 180px;
}

/* ----- Hero 区域 ----- */
.page-home__hero {
  position: relative;
  min-height: var(--hero-min-height);
  display: flex;
  align-items: stretch;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
  background-color: var(--color-primary, #0B3D5F);
  overflow: hidden;
}

.page-home__hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home__hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}

.page-home__hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(11, 61, 95, 0.85) 0%, rgba(11, 61, 95, 0.40) 60%, rgba(0, 180, 216, 0.20) 100%);
}

.page-home__hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  width: 100%;
  padding-top: 24px;
  padding-bottom: 60px;
  gap: 32px;
}

/* ----- 左侧章节索引轨道 ----- */
.page-home__hero-track {
  display: none;
  flex-shrink: 0;
  width: var(--hero-track-width);
  padding-top: 40px;
  position: relative;
}

@media (min-width: 1024px) {
  .page-home__hero-track {
    display: flex;
    flex-direction: column;
  }
}

.page-home__hero-track-label {
  font-family: var(--font-heading, "Source Han Sans SC", sans-serif);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 24px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  align-self: center;
}

.page-home__hero-track-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
}

.page-home__hero-track-item {
  position: relative;
}

.page-home__hero-track-item a {
  display: block;
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 0.8125rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  line-height: 1.4;
  padding: 6px 0;
  transition: color var(--transition-fast, 0.2s ease);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.05em;
}

.page-home__hero-track-item a:hover,
.page-home__hero-track-item a:focus-visible {
  color: #fff;
  outline: none;
  text-decoration: underline;
}

.page-home__hero-track-item.is-current a {
  color: #fff;
  font-weight: 600;
}

.page-home__hero-track-indicator {
  position: absolute;
  left: -8px;
  top: 0;
  width: 3px;
  height: 36px;
  background: var(--color-accent-blue, #00B4D8);
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(0, 180, 216, 0.5);
  transition: top var(--transition-base, 0.35s ease);
}

.page-home__hero-track-item:nth-child(1).is-current ~ .page-home__hero-track-indicator {
  top: 0;
}

/* ----- 移动端水平章节指示 ----- */
@media (max-width: 1023px) {
  .page-home__hero {
    clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%);
    min-height: 520px;
  }

  .page-home__hero-inner {
    flex-direction: column;
    padding-top: 16px;
    padding-bottom: 40px;
    gap: 16px;
  }

  .page-home__hero-track {
    display: flex;
    flex-direction: row;
    width: 100%;
    padding-top: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .page-home__hero-track::-webkit-scrollbar {
    display: none;
  }

  .page-home__hero-track-label {
    writing-mode: horizontal-tb;
    font-size: 0.6875rem;
    margin-bottom: 0;
    margin-right: 12px;
    flex-shrink: 0;
    align-self: center;
    color: rgba(255, 255, 255, 0.5);
  }

  .page-home__hero-track-list {
    flex-direction: row;
    gap: 8px;
    flex-wrap: nowrap;
  }

  .page-home__hero-track-item a {
    writing-mode: horizontal-tb;
    font-size: 0.75rem;
    padding: 6px 14px;
    white-space: nowrap;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
    transition: background var(--transition-fast, 0.2s ease), color var(--transition-fast, 0.2s ease);
  }

  .page-home__hero-track-item a:hover,
  .page-home__hero-track-item a:focus-visible {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
  }

  .page-home__hero-track-item.is-current a {
    background: var(--color-accent-blue, #00B4D8);
    color: #fff;
    font-weight: 600;
  }

  .page-home__hero-track-indicator {
    display: none;
  }
}

/* ----- Hero 右侧主内容 ----- */
.page-home__hero-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 0;
  min-width: 0;
}

.page-home__breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
}

.page-home__breadcrumb-item[aria-current="page"] {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.page-home__breadcrumb-sep {
  color: rgba(255, 255, 255, 0.35);
}

.page-home__hero-title {
  font-family: var(--font-heading, "Source Han Sans SC", sans-serif);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}

.page-home__hero-desc {
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: clamp(0.9375rem, 1.4vw, 1.125rem);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 0 32px;
}

.page-home__hero-btn {
  align-self: flex-start;
  font-size: 1.0625rem;
  padding: 14px 40px;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.35);
  transition: transform var(--transition-fast, 0.2s ease), box-shadow var(--transition-fast, 0.2s ease);
}

.page-home__hero-btn:hover,
.page-home__hero-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 107, 53, 0.45);
}

/* ----- 区块标题通用 ----- */
.page-home__section-header {
  text-align: center;
  margin-bottom: 40px;
}

.page-home__section-title {
  font-family: var(--font-heading, "Source Han Sans SC", sans-serif);
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 700;
  color: var(--color-text, #1A1A2E);
  margin: 0 0 8px;
  letter-spacing: 0.01em;
}

.page-home__section-desc {
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 640px;
  margin: 0 auto;
}

/* ----- 下载区域 ----- */
.page-home__download {
  padding: 80px 0 60px;
  background: var(--color-bg-alt, #ffffff);
}

.page-home__download-grid {
  gap: 28px;
}

.page-home__download-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 36px 28px;
  text-align: center;
  border-radius: var(--card-radius, 12px);
  box-shadow: var(--shadow-card, 0 2px 12px rgba(11, 61, 95, 0.08));
  border: var(--border-thin, 1px solid rgba(139, 155, 180, 0.3));
  transition: box-shadow var(--transition-base, 0.35s ease), transform var(--transition-base, 0.35s ease);
}

.page-home__download-card:hover,
.page-home__download-card:focus-within {
  box-shadow: var(--shadow-hover, 0 6px 24px rgba(11, 61, 95, 0.14));
  transform: translateY(-4px);
}

@media (min-width: 600px) {
  .page-home__download-card {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
  }
}

.page-home__download-icon {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  object-fit: contain;
  border-radius: 8px;
  background: var(--color-bg, #F4F6F9);
  padding: 12px;
}

.page-home__download-body {
  flex: 1;
  min-width: 0;
}

.page-home__download-card-title {
  font-family: var(--font-heading, "Source Han Sans SC", sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text, #1A1A2E);
  margin: 0 0 8px;
}

.page-home__download-card-desc {
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-secondary, #8B9BB4);
  margin: 0 0 16px;
}

.page-home__download-btn {
  display: inline-block;
  font-size: 0.9375rem;
  padding: 10px 28px;
  border-radius: 6px;
  cursor: pointer;
}

.page-home__download-btn--fake {
  position: relative;
  overflow: hidden;
}

/* 悬停时模拟进度条动画 */
.page-home__download-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(139, 155, 180, 0.15);
  border-radius: 2px;
  overflow: hidden;
  opacity: 0;
  transition: opacity var(--transition-base, 0.35s ease);
}

.page-home__download-card:hover .page-home__download-progress,
.page-home__download-btn--fake:focus-visible ~ .page-home__download-progress {
  opacity: 1;
}

.page-home__download-progress-bar {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-accent-blue, #00B4D8), var(--color-accent, #FF6B35));
  border-radius: 2px;
  transition: width 1.2s ease;
}

.page-home__download-card:hover .page-home__download-progress-bar,
.page-home__download-btn--fake:focus-visible ~ .page-home__download-progress .page-home__download-progress-bar {
  width: 85%;
}

/* ----- 对照表区域 ----- */
.page-home__comparison {
  padding: 60px 0 80px;
  background: var(--color-bg, #F4F6F9);
}

.page-home__table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--table-radius, 10px);
  box-shadow: var(--shadow-card, 0 2px 12px rgba(11, 61, 95, 0.08));
}

.page-home__table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 0.9375rem;
  background: var(--color-bg-alt, #ffffff);
  border-radius: var(--table-radius, 10px);
  overflow: hidden;
}

.page-home__table-th {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.9375rem;
  color: #fff;
  background: var(--color-primary, #0B3D5F);
  text-align: left;
  white-space: nowrap;
}

.page-home__table-th--new {
  background: linear-gradient(135deg, var(--color-primary, #0B3D5F), #0f4a72);
}

.page-home__table-th--old {
  background: linear-gradient(135deg, #0a2f49, var(--color-primary, #0B3D5F));
}

.page-home__table-icon {
  width: 24px;
  height: 24px;
  vertical-align: middle;
  margin-right: 6px;
  object-fit: contain;
  filter: brightness(10);
}

.page-home__table-row {
  transition: background var(--transition-fast, 0.2s ease);
}

.page-home__table-row:nth-child(even) {
  background: rgba(244, 246, 249, 0.6);
}

.page-home__table-row:hover,
.page-home__table-row:focus-within {
  background: rgba(0, 180, 216, 0.08);
}

.page-home__table-row:hover .page-home__table-cell::after {
  opacity: 1;
}

.page-home__table-cell {
  padding: 14px 20px;
  border-bottom: 1px solid rgba(139, 155, 180, 0.15);
  color: var(--color-text, #1A1A2E);
  line-height: 1.5;
  position: relative;
}

.page-home__table-cell--label {
  font-weight: 600;
  color: var(--color-primary, #0B3D5F);
  white-space: nowrap;
}

.page-home__table-row:last-child .page-home__table-cell {
  border-bottom: none;
}

/* 悬停时显示额外说明 */
.page-home__table-row .page-home__table-cell::after {
  content: attr(data-detail);
  display: none;
}

.page-home__table-row:hover .page-home__table-cell:first-child::after {
  display: none;
}

/* 为技术支持行添加悬停效果 */
.page-home__table-row:last-child:hover .page-home__table-cell {
  color: var(--color-accent-blue, #00B4D8);
  font-weight: 500;
}

/* ----- 快速导航区域 ----- */
.page-home__quick-nav {
  padding: 80px 0 60px;
  background: var(--color-bg-alt, #ffffff);
}

.page-home__nav-grid {
  gap: 24px;
}

.page-home__nav-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: var(--nav-card-min-height, 180px);
  padding: 32px 20px;
  border-radius: var(--card-radius, 12px);
  text-decoration: none;
  box-shadow: var(--shadow-card, 0 2px 12px rgba(11, 61, 95, 0.08));
  border: var(--border-thin, 1px solid rgba(139, 155, 180, 0.3));
  transition: box-shadow var(--transition-base, 0.35s ease), transform var(--transition-base, 0.35s ease), border-color var(--transition-base, 0.35s ease);
  position: relative;
  overflow: hidden;
}

.page-home__nav-card:hover,
.page-home__nav-card:focus-visible {
  box-shadow: var(--shadow-hover, 0 6px 24px rgba(11, 61, 95, 0.14));
  transform: translateY(-6px);
  border-color: var(--color-accent-blue, #00B4D8);
  outline: none;
}

.page-home__nav-card-title {
  font-family: var(--font-heading, "Source Han Sans SC", sans-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text, #1A1A2E);
  margin: 0 0 8px;
  transition: color var(--transition-fast, 0.2s ease);
}

.page-home__nav-card:hover .page-home__nav-card-title,
.page-home__nav-card:focus-visible .page-home__nav-card-title {
  color: var(--color-accent-blue, #00B4D8);
}

.page-home__nav-card-desc {
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 0.875rem;
  color: var(--color-text-secondary, #8B9BB4);
  line-height: 1.5;
  margin: 0;
}

.page-home__nav-card-indicator {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent-blue, #00B4D8);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-base, 0.35s ease);
  border-radius: 2px 2px 0 0;
}

.page-home__nav-card:hover .page-home__nav-card-indicator,
.page-home__nav-card:focus-visible .page-home__nav-card-indicator {
  transform: scaleX(1);
}

/* ----- 联系条 ----- */
.page-home__contact-bar {
  background: var(--color-primary, #0B3D5F);
  padding: 24px 0;
}

.page-home__contact-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-home__contact-bar-icon {
  font-size: 1.5rem;
  color: var(--color-accent, #FF6B35);
  flex-shrink: 0;
}

.page-home__contact-bar-text {
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  margin: 0;
  text-align: center;
}

.page-home__contact-bar-text a {
  color: var(--color-accent, #FF6B35);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast, 0.2s ease);
}

.page-home__contact-bar-text a:hover,
.page-home__contact-bar-text a:focus-visible {
  color: #ff8a5c;
  outline: none;
}

/* ----- 底部纹理装饰 ----- */
.page-home__texture {
  width: 100%;
  height: auto;
  line-height: 0;
  overflow: hidden;
  background: var(--color-footer-bg, #072438);
}

.page-home__texture-img {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  display: block;
  opacity: 0.6;
}

/* ----- 响应式增强 ----- */
@media (max-width: 599px) {
  .page-home__hero {
    min-height: 460px;
    clip-path: polygon(0 0, 100% 0, 100% 98%, 0 100%);
  }

  .page-home__hero-title {
    font-size: 1.75rem;
  }

  .page-home__hero-btn {
    align-self: stretch;
    text-align: center;
    padding: 14px 20px;
  }

  .page-home__section-header {
    margin-bottom: 28px;
  }

  .page-home__section-title {
    font-size: 1.375rem;
  }

  .page-home__download {
    padding: 48px 0 36px;
  }

  .page-home__download-card {
    padding: 24px 16px;
  }

  .page-home__comparison {
    padding: 36px 0 48px;
  }

  .page-home__table-th,
  .page-home__table-cell {
    padding: 10px 12px;
    font-size: 0.8125rem;
  }

  .page-home__quick-nav {
    padding: 48px 0 36px;
  }

  .page-home__nav-card {
    min-height: 140px;
    padding: 20px 16px;
  }

  .page-home__contact-bar-text {
    font-size: 0.8125rem;
  }
}

@media (min-width: 600px) and (max-width: 1023px) {
  .page-home__hero {
    min-height: 520px;
  }

  .page-home__download-card {
    padding: 28px 24px;
  }

  .page-home__nav-card {
    min-height: 160px;
    padding: 24px 16px;
  }
}

@media (min-width: 1024px) and (max-width: 1279px) {
  .page-home__hero-inner {
    gap: 24px;
  }

  .page-home__hero-track {
    width: 80px;
  }
}

/* ----- 打印优化 ----- */
@media print {
  .page-home__hero {
    clip-path: none;
    min-height: auto;
    background: var(--color-primary, #0B3D5F);
  }

  .page-home__hero-bg {
    display: none;
  }

  .page-home__hero-overlay {
    display: none;
  }

  .page-home__texture {
    display: none;
  }

  .page-home__download-progress {
    display: none;
  }
}