.page-home {
  --home-hair: rgba(30, 74, 110, .16);
  --home-hair-ink: rgba(155, 243, 228, .22);
  --home-mist: rgba(47, 227, 196, .08);
  background: var(--paper-50);
  color: var(--text-900);
  overflow-x: hidden;
}

.page-home .mono {
  font-family: var(--font-mono);
  letter-spacing: .05em;
}

/* ---------- 面包屑 ---------- */
.page-home .breadcrumb {
  padding: var(--s-12) 0 var(--s-12);
  background: var(--ink-950);
}
.page-home .breadcrumb__list {
  display: flex;
  gap: var(--s-12);
  list-style: none;
  margin: 0;
  padding: 0 var(--s-20);
  max-width: var(--shell);
  margin-inline: auto;
}
.page-home .breadcrumb__item {
  font-size: var(--s-12);
  color: var(--cyan-200);
  font-family: var(--font-mono);
  letter-spacing: .05em;
}

/* ---------- 首屏框景 ---------- */
.page-home .hero-frame {
  position: relative;
  padding-block: clamp(2rem, 5vw, 4rem) clamp(2.5rem, 6vw, 5rem);
  background:
    radial-gradient(900px 520px at 82% -10%, rgba(47, 227, 196, .14), transparent 62%),
    linear-gradient(172deg, var(--ink-950) 0%, var(--ink-800) 62%, var(--ink-600) 100%);
  color: var(--text-invert);
  isolation: isolate;
}
.page-home .hero-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--home-hair-ink) 0 1px, transparent 1px),
    linear-gradient(to bottom, var(--home-hair-ink) 0 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .32;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 84%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 84%);
  z-index: -1;
}
.page-home .hero-frame::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(155, 243, 228, .16);
  pointer-events: none;
}

.page-home .hero-frame__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-28);
  align-items: center;
  padding-inline: var(--s-20);
  max-width: var(--shell);
  margin-inline: auto;
}
.page-home .hero-frame__kicker {
  font-size: var(--s-12);
  color: var(--cyan-400);
  margin: 0 0 var(--s-12);
}
.page-home .hero-frame h1 {
  font-size: 28px;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0 0 var(--s-20);
  max-width: 20ch;
}
.page-home .hero-frame__body {
  font-size: var(--s-16);
  line-height: 1.75;
  margin: 0 0 var(--s-14);
  color: var(--text-invert);
  max-width: 46ch;
}
.page-home .hero-frame__sub {
  font-size: var(--s-14);
  line-height: 1.75;
  margin: 0 0 var(--s-28);
  color: rgba(232, 240, 247, .72);
  max-width: 46ch;
}
.page-home .hero-frame__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-12);
}
.page-home .hero-frame__media {
  margin: 0;
  border: 1px solid var(--glass-line);
  background: var(--glass);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-home .hero-frame__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

/* ---------- 12 分类索引 ---------- */
.page-home .cat-index {
  list-style: none;
  margin: var(--s-40) 0 0;
  padding: 0 var(--s-20);
  max-width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--home-hair-ink);
}
.page-home .cat-row a {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas: "num name" "num meta";
  align-items: baseline;
  column-gap: var(--s-14);
  padding: var(--s-14) var(--s-12) var(--s-14) 0;
  border-bottom: 1px solid rgba(155, 243, 228, .14);
  color: var(--text-invert);
  text-decoration: none;
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.page-home .cat-row a:hover,
.page-home .cat-row a:focus-visible {
  border-color: var(--cyan-400);
  transform: translateX(4px);
}
.page-home .cat-row__num {
  grid-area: num;
  font-size: var(--s-14);
  color: var(--cyan-400);
  padding-top: 2px;
}
.page-home .cat-row__name {
  grid-area: name;
  font-size: var(--s-16);
  font-weight: 600;
  line-height: 1.4;
}
.page-home .cat-row__meta {
  grid-area: meta;
  font-size: var(--s-12);
  color: rgba(232, 240, 247, .6);
  margin-top: 2px;
}

/* ---------- 正文骨架 ---------- */
.page-home .home-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-28);
  padding-block: var(--s-40) var(--s-56);
  padding-inline: var(--s-20);
}

/* ---------- 章节索引栏 ---------- */
.page-home .chapter-rail {
  display: flex;
  gap: var(--s-12);
  overflow-x: auto;
  padding-bottom: var(--s-12);
  border-bottom: 1px solid var(--paper-200);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.page-home .chapter-rail__cap {
  display: none;
}
.page-home .chapter-rail__link {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--paper-200);
  border-radius: 999px;
  font-size: var(--s-12);
  color: var(--text-500);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
}
.page-home .chapter-rail__num {
  font-size: var(--s-12);
  color: var(--cyan-600);
}
.page-home .chapter-rail__link:hover,
.page-home .chapter-rail__link:focus-visible,
.page-home .chapter-rail__link.is-active {
  border-color: var(--orange-500);
  color: var(--text-900);
}
.page-home .chapter-rail__link.is-active {
  transform: translateX(4px);
}
.page-home .chapter-rail__link.is-active .chapter-rail__num {
  color: var(--orange-500);
}

/* ---------- 章节 ---------- */
.page-home .home-flow {
  display: flex;
  flex-direction: column;
  gap: var(--s-40);
  min-width: 0;
}
.page-home .home-sec {
  position: relative;
  border-top: 1px solid var(--paper-200);
  padding-top: var(--s-28);
}
.page-home .home-sec__head {
  display: flex;
  align-items: baseline;
  gap: var(--s-12);
  margin-bottom: var(--s-12);
}
.page-home .home-sec__num {
  font-size: var(--s-14);
  color: var(--orange-500);
  font-weight: 700;
}
.page-home .home-sec__title {
  font-size: 20px;
  line-height: 1.35;
  font-weight: 700;
  margin: 0;
  letter-spacing: -.005em;
}
.page-home .home-sec__intro {
  font-size: var(--s-16);
  line-height: 1.75;
  color: var(--text-900);
  max-width: 62ch;
  margin: 0 0 var(--s-20);
}
.page-home .home-sec__tail {
  font-size: var(--s-14);
  line-height: 1.7;
  color: var(--text-500);
  margin: var(--s-20) 0 var(--s-12);
  max-width: 58ch;
}

/* ---------- 02 内容中心 ---------- */
.page-home .press-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-16);
}
.page-home .press-board__lead {
  display: block;
  background: var(--paper-50);
  border: 1px solid var(--paper-200);
  border-left: 3px solid var(--orange-500);
  border-radius: var(--radius-sm);
  padding: var(--s-20);
  text-decoration: none;
  color: inherit;
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.page-home .press-board__lead:hover,
.page-home .press-board__lead:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan-400);
  border-left-color: var(--orange-500);
}
.page-home .press-board__lead h3 {
  margin: var(--s-12) 0 var(--s-12);
  font-size: var(--s-20);
  line-height: 1.4;
  font-weight: 700;
}
.page-home .press-board__lead p {
  margin: 0 0 var(--s-14);
  font-size: var(--s-14);
  line-height: 1.75;
  color: var(--text-500);
}
.page-home .press-board__more {
  font-size: var(--s-12);
  color: var(--cyan-600);
}
.page-home .press-back {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--paper-200);
}
.page-home .press-back li {
  border-bottom: 1px solid var(--paper-200);
}
.page-home .press-back a {
  display: block;
  padding: var(--s-12) 0;
  font-size: var(--s-14);
  line-height: 1.6;
  color: var(--text-900);
  text-decoration: none;
}
.page-home .press-back a:hover,
.page-home .press-back a:focus-visible {
  color: var(--cyan-600);
}
.page-home .press-back .mono {
  display: inline-block;
  min-width: 5.2em;
  color: var(--text-500);
  font-size: var(--s-12);
}

/* ---------- 03 功能对比 ---------- */
.page-home .compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-20);
  margin-bottom: var(--s-20);
}
.page-home .compare-table {
  border: 1px solid var(--paper-200);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #fff;
}
.page-home .compare-table__head {
  display: grid;
  grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr));
  gap: 4px;
  padding: 10px var(--s-12);
  background: var(--ink-800);
  color: var(--cyan-200);
  font-size: 11px;
  text-align: left;
}
.page-home .compare-row {
  display: grid;
  grid-template-columns: auto minmax(0, 2fr) repeat(3, minmax(0, 1fr));
  grid-template-areas: "box name d m w";
  gap: 4px;
  align-items: center;
  padding: 12px var(--s-12);
  border-bottom: 1px solid var(--paper-200);
  cursor: pointer;
  transition: background .18s var(--ease);
}
.page-home .compare-row:last-child {
  border-bottom: 0;
}
.page-home .compare-row input {
  grid-area: box;
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin: 0 8px 0 0;
  border: 1px solid var(--cyan-600);
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  position: relative;
  flex: none;
}
.page-home .compare-row input::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 2px;
  background: transparent;
  transition: background .16s var(--ease);
}
.page-home .compare-row input:checked {
  border-color: var(--cyan-400);
}
.page-home .compare-row input:checked::after {
  background: var(--cyan-400);
}
.page-home .compare-row__name {
  grid-area: name;
  font-size: var(--s-14);
  line-height: 1.45;
  padding-right: var(--s-12);
}
.page-home .compare-row__cell {
  font-size: var(--s-12);
  font-family: var(--font-mono);
  color: var(--text-500);
  line-height: 1.4;
}
.page-home .compare-row__cell--on {
  color: var(--text-900);
}
.page-home .compare-row input:checked ~ * {
  background-color: rgba(255, 227, 210, .55);
}
.page-home .compare-row input:checked ~ .compare-row__cell {
  color: var(--orange-700);
  font-weight: 600;
  box-shadow: inset 0 -1px 0 rgba(255, 122, 47, .55);
}
.page-home .compare-row:nth-child(odd) input:checked ~ * {
  background-color: rgba(255, 227, 210, .7);
}
.page-home .compare-figure {
  margin: 0;
  border: 1px solid var(--paper-200);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--ink-950);
}
.page-home .compare-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 1200 / 760;
}

/* ---------- 04 反馈归档 ---------- */
.page-home .home-sec--ink {
  background: linear-gradient(168deg, var(--ink-950) 0%, var(--ink-800) 100%);
  color: var(--text-invert);
  border-top-color: transparent;
  border-radius: var(--radius);
  padding: var(--s-28) var(--s-20) var(--s-28);
  overflow: hidden;
}
.page-home .home-sec--ink .home-sec__intro {
  color: rgba(232, 240, 247, .8);
}
.page-home .home-sec--ink .home-sec__title {
  color: var(--text-invert);
}
.page-home .sec-ghost {
  position: absolute;
  inset: 0;
  opacity: .1;
  pointer-events: none;
  overflow: hidden;
  display: block;
}
.page-home .sec-ghost img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-home .archive-list {
  position: relative;
  list-style: none;
  margin: 0 0 var(--s-20);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--home-hair-ink);
}
.page-home .archive-item {
  border-bottom: 1px solid var(--home-hair-ink);
}
.page-home .archive-item a {
  display: block;
  padding: var(--s-14) 0;
  text-decoration: none;
  color: inherit;
}
.page-home .archive-item a:hover h3,
.page-home .archive-item a:focus-visible h3 {
  color: var(--cyan-200);
}
.page-home .archive-item__when {
  display: inline-block;
  font-size: var(--s-12);
  color: var(--cyan-400);
  margin-bottom: 6px;
}
.page-home .archive-item h3 {
  font-size: var(--s-16);
  font-weight: 600;
  line-height: 1.45;
  margin: 0 0 6px;
  transition: color .18s var(--ease);
}
.page-home .archive-item p {
  margin: 0;
  font-size: var(--s-14);
  line-height: 1.7;
  color: rgba(232, 240, 247, .68);
  max-width: 58ch;
}

/* ---------- 05 服务范围与阅读建议 ---------- */
.page-home .scope-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-20);
}
.page-home .scope-col {
  border: 1px solid var(--paper-200);
  border-radius: var(--radius-sm);
  padding: var(--s-20);
  background: #fff;
}
.page-home .scope-col--alt {
  background: linear-gradient(180deg, rgba(47, 227, 196, .07), transparent 70%), #fff;
  border-color: rgba(12, 140, 121, .32);
}
.page-home .scope-col__title {
  font-size: var(--s-16);
  font-weight: 700;
  margin: 0 0 var(--s-14);
  padding-bottom: var(--s-12);
  border-bottom: 1px solid var(--paper-200);
}
.page-home .scope-col__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-home .scope-col__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: var(--s-12);
  font-size: var(--s-14);
  line-height: 1.72;
  color: var(--text-900);
}
.page-home .scope-col__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 1px;
  background: var(--cyan-400);
}
.page-home .scope-col__list li:last-child {
  margin-bottom: 0;
}
.page-home .scope-col__order {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}
.page-home .scope-col__order li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-12);
  align-items: baseline;
  padding: var(--s-12) 0;
  border-bottom: 1px dashed var(--paper-200);
  font-size: var(--s-14);
  line-height: 1.7;
}
.page-home .scope-col__order li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-home .scope-col__order .mono {
  color: var(--orange-500);
  font-weight: 700;
  font-size: var(--s-12);
}

/* ---------- 06 移动端路径 ---------- */
.page-home .home-sec--plain {
  border-top-style: dashed;
}
.page-home .route-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-16);
}
.page-home .route-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-14);
  align-items: start;
  padding: var(--s-16) 0;
  border-top: 1px solid var(--paper-200);
}
.page-home .route-step:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-home .route-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--cyan-400);
  color: var(--cyan-600);
  font-size: var(--s-12);
  flex: none;
}
.page-home .route-step h3 {
  font-size: var(--s-16);
  font-weight: 600;
  margin: 4px 0 6px;
  line-height: 1.45;
}
.page-home .route-step p {
  margin: 0;
  font-size: var(--s-14);
  line-height: 1.72;
  color: var(--text-500);
  max-width: 56ch;
}

/* ---------- 按钮微调 ---------- */
.page-home .home-sec .btn {
  margin-top: var(--s-12);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .cat-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--s-28);
  }
  .page-home .press-board {
    grid-template-columns: 1fr;
  }
  .page-home .scope-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .hero-frame__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: var(--s-40);
  }
  .page-home .hero-frame h1 {
    font-size: 40px;
    max-width: 18ch;
  }
  .page-home .home-body {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: var(--s-40);
    padding-block: var(--s-56) var(--s-56);
  }
  .page-home .chapter-rail {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    border-bottom: 0;
    border-left: 1px solid var(--paper-200);
    padding: 0 0 0 var(--s-12);
    position: sticky;
    top: 96px;
    align-self: start;
  }
  .page-home .chapter-rail__cap {
    display: block;
    font-size: var(--s-12);
    color: var(--text-500);
    margin: 0 0 var(--s-12);
    letter-spacing: .18em;
  }
  .page-home .chapter-rail__link {
    border: 0;
    border-radius: 0;
    padding: 8px 10px;
    font-size: var(--s-14);
    color: var(--text-500);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 10px;
    align-items: baseline;
    border-left: 2px solid transparent;
    margin-left: -1px;
    white-space: normal;
  }
  .page-home .chapter-rail__link:hover,
  .page-home .chapter-rail__link:focus-visible {
    color: var(--text-900);
    border-left-color: var(--paper-200);
  }
  .page-home .chapter-rail__link.is-active {
    color: var(--text-900);
    border-left-color: var(--orange-500);
    transform: translateX(4px);
  }
  .page-home .home-flow {
    gap: var(--s-56);
  }
  .page-home .home-sec {
    padding-top: var(--s-40);
  }
  .page-home .home-sec__title {
    font-size: 28px;
  }
  .page-home .press-board {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: var(--s-28);
    align-items: start;
  }
  .page-home .press-back {
    border-top: 0;
  }
  .page-home .press-back li:first-child {
    border-top: 1px solid var(--paper-200);
  }
  .page-home .compare-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .78fr);
    gap: var(--s-28);
    align-items: start;
  }
  .page-home .archive-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--s-28);
  }
  .page-home .archive-item:nth-child(odd) {
    padding-right: var(--s-12);
  }
  .page-home .route-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--s-40);
  }
  .page-home .route-step:nth-child(2) {
    border-top: 0;
    padding-top: 0;
  }
  .page-home .home-sec--ink {
    padding: var(--s-40) var(--s-40);
  }
}

@media (min-width: 1200px) {
  .page-home .hero-frame h1 {
    font-size: 56px;
  }
  .page-home .home-body {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: var(--s-56);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .cat-row a,
  .page-home .press-board__lead,
  .page-home .chapter-rail__link,
  .page-home .archive-item h3 {
    transition: none;
  }
  .page-home .cat-row a:hover,
  .page-home .cat-row a:focus-visible,
  .page-home .chapter-rail__link.is-active,
  .page-home .press-board__lead:hover,
  .page-home .press-board__lead:focus-visible {
    transform: none;
  }
}
</main>