.page-home {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-home a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-home .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-home .chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.4;
  color: var(--slate);
  background: rgba(244, 241, 234, 0.03);
}

.page-home .chip--amber {
  border-color: var(--amber);
  color: var(--amber);
}

.page-home .chip--celadon {
  border-color: rgba(111, 199, 174, 0.55);
  color: var(--celadon);
}

.page-home .chapter--paper .chip {
  border-color: rgba(11, 23, 48, 0.22);
  color: rgba(11, 23, 48, 0.72);
}

.page-home .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border: 1px solid transparent;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform var(--dur), background-color var(--dur), border-color var(--dur), color var(--dur);
}

.page-home .btn--amber {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
}

.page-home .btn--amber:hover {
  background: var(--amber-deep);
  border-color: var(--amber-deep);
  transform: translateY(-2px);
}

.page-home .btn--ghost {
  background: transparent;
  border-color: var(--grid);
  color: var(--paper);
}

.page-home .btn--ghost:hover {
  border-color: var(--amber);
  color: var(--amber);
  transform: translateY(-2px);
}

.page-home .link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(242, 178, 62, 0.45);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  line-height: 1.6;
  color: var(--amber);
  text-decoration: none;
  transition: border-color var(--dur), color var(--dur);
}

.page-home .link-more:hover {
  border-bottom-color: var(--amber);
}

.page-home .chapter--paper .link-more {
  color: var(--amber-deep);
  border-bottom-color: rgba(201, 138, 31, 0.5);
}

/* ---------- 封面首屏 ---------- */
.page-home .cover {
  position: relative;
  padding: clamp(22px, 4.5vw, 52px) 0 clamp(38px, 7vw, 86px);
  overflow: hidden;
  border-bottom: 1px solid var(--grid);
  background:
    radial-gradient(120% 90% at 82% 10%, rgba(242, 178, 62, 0.10), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
}

.page-home .cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, var(--grid) 0 1px, transparent 1px 120px);
  opacity: 0.26;
  pointer-events: none;
}

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

.page-home .cover__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 23, 48, 0.55) 0%, rgba(11, 23, 48, 0.9) 70%);
}

.page-home .cover__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.2;
  filter: saturate(0.85);
}

.page-home .cover__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(30px, 5vw, 52px);
}

.page-home .cover__crumb {
  margin-bottom: clamp(20px, 3vw, 34px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-home .cover__crumb a {
  color: var(--slate);
  text-decoration: none;
}

.page-home .cover__crumb a:hover {
  color: var(--amber);
}

.page-home .cover__mark {
  display: block;
  width: 46px;
  height: 3px;
  margin-bottom: 18px;
  background: var(--amber);
}

.page-home .cover__title {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .cover__dek {
  max-width: 54ch;
  margin: 0 0 22px;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.8);
}

.page-home .cover__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}

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

/* 入口索引 */
.page-home .entry-index {
  position: relative;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--grid);
  border-left: 2px solid var(--amber);
  background: linear-gradient(180deg, rgba(22, 41, 77, 0.96), rgba(16, 31, 61, 0.96));
}

.page-home .entry-index__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--grid);
}

.page-home .entry-index__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-home .entry-index__state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--celadon);
}

.page-home .entry-index__state::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--celadon);
  box-shadow: 0 0 0 3px rgba(111, 199, 174, 0.16);
}

.page-home .entry-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .entry-index__item + .entry-index__item {
  border-top: 1px solid rgba(43, 64, 102, 0.65);
}

.page-home .entry-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 2px 14px;
  align-items: center;
  padding: 14px 0;
  color: var(--paper);
  text-decoration: none;
  transition: color var(--dur), padding-left var(--dur);
}

.page-home .entry-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
}

.page-home .entry-index__label {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
}

.page-home .entry-index__arrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber);
}

.page-home .entry-index__desc {
  grid-column: 2 / -1;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

.page-home .entry-index__link:hover {
  color: var(--amber);
  padding-left: 6px;
}

/* ---------- 章节导航 ---------- */
.page-home .chapter-nav {
  border-bottom: 1px solid var(--grid);
  background: var(--ink);
}

.page-home .chapter-nav__list {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .chapter-nav__list::-webkit-scrollbar {
  display: none;
}

.page-home .chapter-nav__link {
  display: block;
  padding: 14px 16px;
  border-bottom: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--slate);
  text-decoration: none;
  transition: color var(--dur), border-color var(--dur);
}

.page-home .chapter-nav__link:hover {
  color: var(--paper);
}

.page-home .chapter-nav__link[data-active="true"],
.page-home .chapter-nav__link.is-active {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 章节通用 ---------- */
.page-home .chapter {
  position: relative;
  padding: clamp(44px, 8vw, 100px) 0;
}

.page-home .chapter--ink {
  background: var(--ink);
}

.page-home .chapter--ink2 {
  background: var(--ink-2);
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-home .chapter--paper {
  background: var(--paper);
  color: var(--ink);
}

.page-home .chapter--paper .eyebrow {
  color: var(--amber-deep);
}

.page-home .chapter__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-home .chapter__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(36px, 7vw, 82px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: var(--amber);
  opacity: 0.3;
}

.page-home .chapter--paper .chapter__num {
  color: var(--amber-deep);
  opacity: 0.45;
}

.page-home .chapter__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 36px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-home .chapter--paper .chapter__title {
  color: var(--ink);
}

.page-home .chapter__note {
  max-width: 68ch;
  margin: 0;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.78);
}

.page-home .chapter--paper .chapter__note {
  color: rgba(11, 23, 48, 0.76);
}

.page-home .chapter__figure {
  margin: 0 0 clamp(24px, 4vw, 40px);
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-home .chapter--paper .chapter__figure {
  border-color: rgba(11, 23, 48, 0.16);
  background: rgba(11, 23, 48, 0.05);
}

.page-home .figure__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .figure__caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-home .chapter--paper .figure__caption {
  border-top-color: rgba(11, 23, 48, 0.14);
  color: rgba(11, 23, 48, 0.6);
}

.page-home .chapter__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

/* ---------- 频道矩阵 ---------- */
.page-home .cat-grid {
  display: grid;
  gap: 14px;
}

.page-home .cat-card {
  position: relative;
  padding: 20px 20px 22px;
  border: 1px solid var(--grid);
  background: rgba(22, 41, 77, 0.55);
  transition: transform var(--dur), border-color var(--dur), background-color var(--dur);
}

.page-home .cat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 0;
  background: var(--amber);
  transition: height var(--dur);
}

.page-home .cat-card:hover {
  transform: translateY(-2px);
  border-color: rgba(242, 178, 62, 0.55);
  background: rgba(22, 41, 77, 0.92);
}

.page-home .cat-card:hover::before {
  height: 100%;
}

.page-home .cat-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.page-home .cat-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-home .cat-card__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
}

.page-home .cat-card__desc {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 241, 234, 0.76);
}

.page-home .cat-card__path {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(43, 64, 102, 0.95);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--celadon);
}

/* ---------- 版本对照 ---------- */
.page-home .compare {
  margin-bottom: clamp(26px, 4vw, 42px);
  border: 1px solid rgba(11, 23, 48, 0.16);
  background: rgba(255, 255, 255, 0.55);
}

.page-home .compare__head {
  display: none;
}

.page-home .compare__item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid rgba(11, 23, 48, 0.12);
}

.page-home .compare__item:first-child {
  border-top: 0;
}

.page-home .compare__label {
  grid-column: 1 / -1;
  padding: 12px 14px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(11, 23, 48, 0.62);
}

.page-home .compare__cell {
  padding: 10px 14px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(11, 23, 48, 0.78);
}

.page-home .compare__cell--new {
  border-left: 2px solid var(--amber);
  background: rgba(242, 178, 62, 0.13);
  font-weight: 600;
  color: var(--ink);
}

.page-home .compare__badge {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  font-weight: 400;
  color: rgba(11, 23, 48, 0.5);
}

.page-home .compare__cell--new .compare__badge {
  color: var(--amber-deep);
}

.page-home .sub-title {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 22px);
  color: var(--ink);
}

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

.page-home .step {
  position: relative;
  padding: 18px 0 18px;
  border-top: 1px solid rgba(11, 23, 48, 0.16);
}

.page-home .step__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber-deep);
}

.page-home .step__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
}

.page-home .step__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(11, 23, 48, 0.72);
}

/* ---------- 同步 ---------- */
.page-home .sync {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-home .sync__text {
  margin: 0;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.8);
}

.page-home .sync__devices {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .sync__device {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-home .sync__device::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--celadon);
}

.page-home .sync__note {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--celadon);
  background: rgba(111, 199, 174, 0.08);
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.82);
}

.page-home .sync__figure {
  margin: 0;
}

/* ---------- 新手上路 ---------- */
.page-home .start-grid {
  display: grid;
  gap: 16px;
}

.page-home .start-card {
  padding: 20px;
  border: 1px solid rgba(11, 23, 48, 0.16);
  background: rgba(255, 255, 255, 0.55);
}

.page-home .start-card__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--amber-deep);
}

.page-home .start-card__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
}

.page-home .start-card__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(11, 23, 48, 0.74);
}

/* ---------- 收尾 ---------- */
.page-home .closing {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 7vw, 86px) 0;
  border-top: 1px solid var(--grid);
  background: var(--ink);
}

.page-home .closing::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, var(--grid) 0 1px, transparent 1px 96px);
  opacity: 0.2;
  pointer-events: none;
}

.page-home .closing__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-home .closing__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.26;
  color: var(--paper);
}

.page-home .closing__text {
  max-width: 56ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.78);
}

.page-home .closing__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-home .chapter__head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(16px, 3vw, 40px);
    align-items: start;
  }

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

@media (min-width: 820px) {
  .page-home .compare__head {
    display: grid;
    grid-template-columns: 150px 1fr 1fr;
    border-bottom: 1px solid rgba(11, 23, 48, 0.18);
    background: rgba(11, 23, 48, 0.05);
  }

  .page-home .compare__head span {
    padding: 12px 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    color: rgba(11, 23, 48, 0.62);
  }

  .page-home .compare__head .compare__head-new {
    color: var(--amber-deep);
  }

  .page-home .compare__item {
    grid-template-columns: 150px 1fr 1fr;
  }

  .page-home .compare__label {
    grid-column: auto;
    padding: 16px;
    border-right: 1px solid rgba(11, 23, 48, 0.1);
    color: rgba(11, 23, 48, 0.7);
    letter-spacing: 0.08em;
  }

  .page-home .compare__cell {
    padding: 16px;
  }

  .page-home .compare__badge {
    display: none;
  }

  .page-home .compare__cell--new {
    border-left: 0;
    box-shadow: inset 2px 0 0 var(--amber);
  }

  .page-home .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px dashed rgba(11, 23, 48, 0.28);
  }

  .page-home .step {
    padding: 24px 22px 0 0;
    border-top: 0;
  }

  .page-home .step::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 0;
    width: 9px;
    height: 9px;
    background: var(--amber-deep);
  }
}

@media (min-width: 900px) {
  .page-home .cover__media {
    inset: 0 0 0 44%;
  }

  .page-home .cover__media::after {
    background: linear-gradient(90deg, var(--ink) 0%, rgba(11, 23, 48, 0.55) 58%, rgba(11, 23, 48, 0.05) 100%);
  }

  .page-home .cover__media img {
    opacity: 0.42;
  }

  .page-home .cover__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
    column-gap: clamp(32px, 5vw, 72px);
  }

  .page-home .entry-index {
    margin-top: clamp(20px, 4vw, 62px);
  }

  .page-home .sync {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: center;
  }

  .page-home .closing__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

@media (min-width: 1020px) {
  .page-home .cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .cat-card,
  .page-home .btn,
  .page-home .entry-index__link,
  .page-home .link-more {
    transition: none;
  }

  .page-home .cat-card:hover,
  .page-home .btn:hover {
    transform: none;
  }
}
<<<END>>>