.page-home {
  background: var(--ink-900);
  color: var(--white-050);
  overflow-x: clip;
}

.page-home [id^="sec-"] {
  scroll-margin-top: calc(var(--hdr-h) + 20px);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-600);
  background: var(--ink-900);
}

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

.page-home .hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 74% 50%;
  filter: saturate(0.3) brightness(0.5) contrast(1.06);
}

.page-home .hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 11, 24, 0.94) 0%, rgba(6, 11, 24, 0.6) 44%, rgba(6, 11, 24, 0.98) 100%),
    linear-gradient(90deg, rgba(6, 11, 24, 0.97) 0%, rgba(6, 11, 24, 0.72) 56%, rgba(6, 11, 24, 0.3) 100%);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: 22px;
  width: 64%;
  height: 1px;
  background: linear-gradient(90deg, rgba(45, 242, 214, 0) 0%, rgba(45, 242, 214, 0.7) 50%, rgba(45, 242, 214, 0) 100%);
  transform: rotate(-4.5deg);
  pointer-events: none;
}

.page-home .hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
  padding-top: 40px;
  padding-bottom: 44px;
}

.page-home .ctx {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--steel-300);
}

.page-home .ctx .num {
  color: var(--cyan-400);
}

.page-home .hero h1 {
  margin: 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-size: clamp(30px, 7.4vw, 62px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--white-050);
  text-wrap: balance;
}

.page-home .hero-lede {
  margin: 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--steel-300);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero-actions .btn {
  flex: 0 1 auto;
  min-width: 208px;
  justify-content: center;
  text-align: center;
}

.page-home .steps {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
}

.page-home .step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 15px;
  border: 1px dashed var(--line-600);
  border-radius: var(--r-sm);
  background: rgba(13, 22, 48, 0.68);
  font-size: 15px;
  line-height: 1.6;
  color: var(--steel-300);
}

.page-home .step .num {
  flex: 0 0 auto;
  padding-top: 2px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-home .chapter-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 6px;
}

.page-home .chapter-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line-600);
  border-left: 2px solid rgba(45, 242, 214, 0.38);
  border-radius: var(--r-xs);
  background: rgba(27, 42, 82, 0.5);
  color: var(--white-050);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .chapter-item .num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
}

.page-home .chapter-item:hover,
.page-home .chapter-item:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan-400);
  background: rgba(27, 42, 82, 0.92);
}

/* ---------- 光影带状图 ---------- */
.page-home .band {
  margin: 0;
  background: var(--ink-800);
  border-bottom: 1px solid var(--line-600);
}

.page-home .band img {
  display: block;
  width: 100%;
  height: 170px;
  object-fit: cover;
  object-position: 50% 42%;
  filter: saturate(0.22) brightness(0.62) contrast(1.08);
}

.page-home .band figcaption {
  padding: 12px 20px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel-300);
}

/* ---------- 通用区块 ---------- */
.page-home .section {
  position: relative;
  padding: 56px 0;
}

.page-home .section--panel {
  background: var(--ink-800);
}

.page-home .sec-head {
  max-width: 800px;
  margin-bottom: 28px;
}

.page-home .sec-head .h2 {
  margin: 10px 0 0;
  color: var(--white-050);
}

.page-home .sec-lede {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--steel-300);
}

/* ---------- 版本对照 ---------- */
.page-home .vlist {
  list-style: none;
  display: grid;
  gap: 16px;
  margin: 0 0 30px;
  padding: 0 0 0 18px;
  border-left: 1px solid var(--line-600);
}

.page-home .vitem {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-md);
  background: rgba(13, 22, 48, 0.76);
}

.page-home .vitem::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 26px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--line-600);
}

.page-home .vitem--now {
  border-color: rgba(45, 242, 214, 0.5);
  background: linear-gradient(138deg, rgba(15, 110, 103, 0.38) 0%, rgba(13, 22, 48, 0.92) 72%);
}

.page-home .vitem--now::before {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(45, 242, 214, 0.16);
}

.page-home .vbadge {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 10px;
  border: 1px solid rgba(45, 242, 214, 0.34);
  border-radius: var(--r-pill);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
}

.page-home .vitem .h3 {
  margin: 0 0 8px;
  color: var(--white-050);
}

.page-home .vitem p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel-300);
}

.page-home .vresult {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .vstat {
  display: grid;
  gap: 5px;
  padding: 18px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-md);
  background: var(--ink-700);
}

.page-home .vnum {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--cyan-400);
}

.page-home .vstat span:last-child {
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel-300);
}

.page-home .vnote {
  margin: 20px 0 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel-300);
}

/* ---------- 内容板 ---------- */
.page-home .board-head {
  display: grid;
  gap: 22px;
  max-width: none;
}

.page-home .board-head-text .h2 {
  margin: 10px 0 0;
}

.page-home .board-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-600);
  border-radius: var(--r-md);
  background: var(--ink-700);
}

.page-home .board-figure img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
  object-position: 50% 30%;
  filter: saturate(0.34) brightness(0.66) contrast(1.06);
}

.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-600);
}

.page-home .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-pill);
  background: rgba(27, 42, 82, 0.5);
  color: var(--steel-300);
  font: inherit;
  font-size: 14px;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}

.page-home .filter-btn:hover {
  border-color: var(--cyan-400);
  color: var(--white-050);
}

.page-home .filter-btn[aria-pressed="true"] {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
  color: var(--ink-900);
  transform: translateY(-1px);
}

.page-home .filter-count {
  font-size: 11px;
  opacity: 0.72;
}

.page-home .board-sub {
  margin: 0 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--cyan-400);
  color: var(--white-050);
}

.page-home .feed-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 44px;
}

.page-home .feed-card {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 18px 18px 18px 22px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-md);
  background: var(--ink-700);
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .feed-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan-400) 0%, rgba(45, 242, 214, 0) 100%);
}

.page-home .feed-card:hover {
  transform: translateY(-2px);
  border-color: rgba(45, 242, 214, 0.45);
}

.page-home .fc-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-home .fc-time {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--steel-300);
  white-space: nowrap;
}

.page-home .fc-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--white-050);
}

.page-home .fc-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel-300);
}

.page-home .fc-clip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  border: 1px dashed var(--line-600);
  border-radius: var(--r-sm);
  background: rgba(6, 11, 24, 0.62);
  font-size: 13px;
  line-height: 1.5;
  color: var(--steel-300);
}

.page-home .fc-clip-label {
  color: var(--white-050);
}

.page-home .fc-dur {
  color: var(--cyan-400);
}

.page-home .fc-src {
  margin-left: auto;
  font-size: 12px;
  color: var(--steel-300);
}

/* ---------- 时间轴 ---------- */
.page-home .timeline-layout {
  display: grid;
  gap: 24px;
}

.page-home .timeline {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.page-home .tl-item {
  position: relative;
  display: grid;
  gap: 7px;
  padding: 14px 18px 14px 22px;
  border-left: 2px solid var(--line-600);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(13, 22, 48, 0.66);
}

.page-home .tl-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 3px rgba(45, 242, 214, 0.13);
}

.page-home .tl-date {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-home .tl-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--white-050);
}

.page-home .tl-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel-300);
}

.page-home .timeline-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-600);
  border-radius: var(--r-md);
  background: var(--ink-700);
}

.page-home .timeline-figure img {
  display: block;
  width: 100%;
  height: 190px;
  object-fit: cover;
  filter: saturate(0.28) brightness(0.6) contrast(1.1);
}

.page-home .filter-empty {
  margin: 24px 0 0;
  padding: 18px;
  border: 1px dashed var(--line-600);
  border-radius: var(--r-md);
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel-300);
}

/* ---------- 订阅视图 ---------- */
.page-home .follow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .follow-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-md);
  background: linear-gradient(158deg, rgba(27, 42, 82, 0.92) 0%, rgba(13, 22, 48, 0.96) 100%);
}

.page-home .fc-idx {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan-400);
}

.page-home .follow-card .h3 {
  margin: 0;
  font-size: 20px;
  color: var(--white-050);
}

.page-home .follow-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--steel-300);
}

.page-home .follow-preview {
  margin-top: 24px;
  padding: 22px 20px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-lg);
  background: rgba(6, 11, 24, 0.72);
}

.page-home .fp-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--steel-300);
}

.page-home .fp-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-home .fp-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-pill);
  background: rgba(27, 42, 82, 0.5);
  font-size: 14px;
  line-height: 1.4;
  color: var(--steel-300);
}

.page-home .fp-chip--on {
  border-color: var(--cyan-400);
  background: rgba(15, 110, 103, 0.3);
  color: var(--white-050);
}

.page-home .fp-note {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--steel-300);
}

/* ---------- 栏目通道 ---------- */
.page-home .sitemap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .sm-item {
  position: relative;
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-md);
  background: rgba(13, 22, 48, 0.72);
  color: inherit;
  text-decoration: none;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .sm-item::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: 0;
  height: 1px;
  background: var(--cyan-400);
  transition: width 240ms var(--ease);
}

.page-home .sm-item:hover,
.page-home .sm-item:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan-400);
  background: rgba(27, 42, 82, 0.92);
}

.page-home .sm-item:hover::after,
.page-home .sm-item:focus-visible::after {
  width: 48px;
}

.page-home .sm-idx {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan-400);
}

.page-home .sm-title {
  margin: 0;
  font-size: 20px;
  color: var(--white-050);
}

.page-home .sm-item p {
  margin: 0;
  padding-right: 56px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--steel-300);
}

/* ---------- 速答 ---------- */
.page-home .faq-list {
  display: grid;
  gap: 10px;
  max-width: 860px;
}

.page-home .faq-item {
  overflow: hidden;
  border: 1px solid var(--line-600);
  border-radius: var(--r-md);
  background: rgba(13, 22, 48, 0.72);
}

.page-home .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.5;
  color: var(--white-050);
  cursor: pointer;
  list-style: none;
}

.page-home .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-home .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--cyan-400);
}

.page-home .faq-item[open] summary::after {
  content: "−";
}

.page-home .faq-item p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel-300);
}

.page-home .faq-more {
  margin: 24px 0 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-home .chapter-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .vresult {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-home .band img {
    height: 240px;
  }
}

@media (min-width: 780px) {
  .page-home .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .feed-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .follow-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .sitemap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .section {
    padding: 84px 0;
  }

  .page-home .hero-inner {
    gap: 26px;
    padding-top: 64px;
    padding-bottom: 68px;
  }

  .page-home .chapter-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .band img {
    height: 280px;
  }

  .page-home .board-head {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: end;
    gap: 42px;
  }

  .page-home .board-figure img {
    height: 250px;
  }

  .page-home .timeline-layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-home .timeline-figure img {
    height: 100%;
    min-height: 260px;
  }
}

@media (min-width: 1024px) {
  .page-home .sitemap-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
<<<END>>>