.page-home {
  --home-cut: 13px;
}

/* ---------- 首屏框景 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  background: var(--mist);
}

.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;
  opacity: 0.28;
}

.page-home .hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    152deg,
    rgba(246, 248, 247, 0.97) 0%,
    rgba(246, 248, 247, 0.9) 44%,
    rgba(191, 224, 234, 0.42) 100%
  );
}

.page-home .hero__wrap {
  position: relative;
  z-index: 1;
  padding-top: clamp(24px, 3.4vw, 48px);
  padding-bottom: clamp(28px, 3.8vw, 56px);
}

.page-home .hero__frame {
  position: relative;
  border: 1px solid var(--lake);
  background: rgba(255, 255, 255, 0.4);
  padding: clamp(24px, 3.4vw, 54px);
}

.page-home .hero__ticks {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--lake) 0 1px, transparent 1px 26px);
  opacity: 0.4;
  pointer-events: none;
}

.page-home .hero__corner {
  position: absolute;
  width: var(--home-cut);
  height: var(--home-cut);
  background: var(--lake-deep);
  z-index: 3;
}

.page-home .hero__corner--tl { top: -1px; left: -1px; }
.page-home .hero__corner--tr { top: -1px; right: -1px; }
.page-home .hero__corner--bl { bottom: -1px; left: -1px; }
.page-home .hero__corner--br { bottom: -1px; right: -1px; }

.page-home .hero__text {
  max-width: 46rem;
}

.page-home .hero__text h1 {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 12px 0 0;
}

.page-home .hero__text .lede {
  margin: 18px 0 0;
  max-width: 38rem;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 2.6vw, 32px);
}

/* ---------- 展开路径 ---------- */
.page-home .hero-path {
  position: relative;
  margin-top: clamp(30px, 3.8vw, 54px);
  display: grid;
  gap: 14px;
}

.page-home .hero-path__line {
  display: none;
}

.page-home .hero-path .path-node {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--hair);
  border-left: 3px solid var(--lake-deep);
  background: rgba(255, 255, 255, 0.62);
  text-decoration: none;
  transition: background var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-home .hero-path .path-node__dot {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lake-deep);
  margin-bottom: 10px;
}

.page-home .hero-path .path-node__label {
  display: block;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .hero-path .path-node__meta {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-faint);
}

.page-home .hero-path .path-node--2 {
  border-left-color: var(--orange);
}

.page-home .hero-path .path-node--2 .path-node__dot {
  background: var(--orange);
}

.page-home .hero-path .path-node--3 {
  border-left-color: var(--jade);
}

.page-home .hero-path .path-node--3 .path-node__dot {
  background: var(--jade);
}

.page-home .hero-path .path-node:hover,
.page-home .hero-path .path-node:focus-visible {
  background: var(--glow);
  transform: translateX(4px);
}

.page-home .hero-path .path-node--1:hover .path-node__label { color: var(--lake-deep); }
.page-home .hero-path .path-node--2:hover .path-node__label { color: var(--orange-deep); }
.page-home .hero-path .path-node--3:hover .path-node__label { color: var(--jade); }

/* ---------- 章节目录条 ---------- */
.page-home .home-toc {
  background: var(--mist);
  border-bottom: 1px solid var(--hair);
}

.page-home .home-toc__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.page-home .home-toc .toc__title {
  margin: 0;
  flex: 0 0 auto;
  font-family: var(--f-serif);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--lake-deep);
}

.page-home .home-toc .toc__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-toc .toc__link {
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-home .home-toc .toc__link:hover {
  color: var(--lake-deep);
  border-bottom-color: var(--lake);
}

.page-home .home-toc .toc__link.is-current {
  color: var(--lake-deep);
  font-weight: 600;
  border-bottom-color: var(--orange);
}

/* ---------- 区块骨架 ---------- */
.page-home .home-block {
  position: relative;
  padding-block: clamp(56px, 7.5vw, 108px);
}

.page-home .home-block--paper {
  background: var(--paper);
}

.page-home .home-block--deep {
  background: var(--ink);
  color: var(--mist);
}

.page-home .home-head {
  max-width: 44rem;
  margin-bottom: clamp(30px, 3.6vw, 52px);
}

.page-home .home-h2 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 10px 0 0;
}

.page-home .home-head .lede {
  margin: 16px 0 0;
  max-width: 38rem;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-home .home-block--deep .eyebrow {
  color: var(--glow);
}

.page-home .home-block--deep .home-h2 {
  color: var(--mist);
}

.page-home .home-block--deep .home-head .lede {
  color: var(--on-deep);
}

.page-home .home-split {
  align-items: start;
  row-gap: 34px;
}

.page-home .home-split__main p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-home .home-split__main > .eyebrow {
  margin: 0;
}

.page-home .home-split__main > .home-h2 {
  margin-top: 10px;
}

.page-home .home-cta-row {
  margin: 26px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-home .home-cta-row--center {
  justify-content: flex-start;
  margin-top: clamp(26px, 3vw, 40px);
}

.page-home .home-split__side {
  display: grid;
  gap: 20px;
}

/* ---------- 图片框 ---------- */
.page-home .home-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--hair);
  background: var(--paper);
}

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

.page-home .home-figure--4x3 img { aspect-ratio: 14 / 9; }
.page-home .home-figure--3x2 img { aspect-ratio: 3 / 2; }
.page-home .home-figure--banner img { aspect-ratio: 16 / 6; }

/* ---------- 入口速查 ---------- */
.page-home .home-tips {
  background: var(--mist);
  border: 1px solid var(--hair);
  border-left: 3px solid var(--lake-deep);
  padding: 20px 22px;
}

.page-home .home-tips__title {
  margin: 0 0 12px;
  font-family: var(--f-serif);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--lake-deep);
}

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

.page-home .home-tips__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-home .home-tips__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--lake);
}

/* ---------- 三步步骤卡 ---------- */
.page-home .home-steps__figure {
  margin-bottom: clamp(28px, 3.4vw, 46px);
  border-color: var(--line);
}

.page-home .home-steps-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-home .home-steps-list .step-card {
  display: flex;
  gap: 16px;
  padding: 24px 22px;
  background: var(--mist);
  border: 1px solid var(--hair);
  transition: border-color var(--t-fast) var(--ease);
}

.page-home .home-steps-list .step-card:hover {
  border-color: var(--lake);
}

.page-home .home-steps-list .step-card__index {
  flex: 0 0 auto;
  font-family: var(--f-mono);
  font-size: 26px;
  line-height: 1;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-home .home-steps-list .step-card__body h3 {
  margin: 2px 0 8px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--ink);
}

.page-home .home-steps-list .step-card__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 版本对照表 ---------- */
.page-home .home-split__table {
  min-width: 0;
}

.page-home .vtable {
  border: 1px solid var(--line);
  background: var(--mist);
}

.page-home .vtable__row {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1.25fr;
}

.page-home .vtable__row > span {
  padding: 13px 14px;
  border-top: 1px solid var(--hair);
  border-left: 1px solid var(--hair);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  min-width: 0;
}

.page-home .vtable__row > span:first-child {
  border-left: 0;
  font-weight: 600;
  color: var(--ink);
}

.page-home .vtable .vtable__head > span {
  border-top: 0;
  background: var(--glow);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--lake-deep);
}

.page-home .vtable .is-new {
  color: var(--jade);
  font-weight: 600;
}

/* ---------- 版本时间线 ---------- */
.page-home .home-timeline {
  list-style: none;
  margin: clamp(32px, 3.8vw, 52px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-home .home-timeline li {
  position: relative;
  padding: 24px 20px 0 0;
}

.page-home .home-timeline li::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line);
}

.page-home .home-timeline li::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--jade);
}

.page-home .home-timeline__v {
  display: block;
  margin-bottom: 6px;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--jade);
}

.page-home .home-timeline__t {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-home .home-footnote {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--jade);
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-faint);
}

/* ---------- 固定收藏价值区 ---------- */
.page-home .home-value {
  display: grid;
  gap: 1px;
  background: var(--hair-deep);
  border: 1px solid var(--hair-deep);
}

.page-home .home-value__item {
  background: var(--ink);
  padding: clamp(24px, 3vw, 38px);
}

.page-home .home-value__item h3 {
  margin: 14px 0 10px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--mist);
}

.page-home .home-value__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--on-deep);
}

.page-home .home-value__index {
  display: block;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--glow);
  opacity: 0.85;
}

.page-home .home-value__item:nth-child(2) .home-value__index { color: var(--orange); }
.page-home .home-value__item:nth-child(3) .home-value__index { color: var(--jade); }

.page-home .home-value__foot {
  margin: clamp(28px, 3vw, 44px) 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--hair-deep);
  font-size: 13px;
  line-height: 1.85;
  color: var(--on-deep-faint);
}

.page-home .home-block--deep .link-arrow {
  color: var(--glow);
}

/* ---------- 折叠问答 ---------- */
.page-home .home-accordion {
  border-top: 1px solid var(--line);
}

.page-home .home-accordion .accordion__item {
  border-bottom: 1px solid var(--line);
}

.page-home .home-accordion .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 22px 4px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.5;
  color: var(--ink);
  transition: color var(--t-fast) var(--ease);
}

.page-home .home-accordion .accordion__trigger:hover {
  color: var(--lake-deep);
}

.page-home .home-accordion .accordion__mark {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  margin-top: 7px;
  border: 1px solid var(--lake);
  background: transparent;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-home .home-accordion .accordion__trigger[aria-expanded="true"] .accordion__mark {
  background: var(--orange);
  border-color: var(--orange);
}

.page-home .home-accordion .accordion__panel-inner {
  padding: 0 4px 26px 30px;
}

.page-home .home-accordion .accordion__panel-inner p {
  margin: 0 0 12px;
  max-width: 46rem;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-home .home-accordion .accordion__panel-inner p:last-child {
  margin-bottom: 0;
}

/* ---------- 收束区 ---------- */
.page-home .home-closing {
  position: relative;
  background: var(--paper);
}

.page-home .home-closing::before {
  content: "";
  display: block;
  height: 10px;
  background-image: repeating-linear-gradient(90deg, var(--lake) 0 1px, transparent 1px 28px);
  opacity: 0.35;
}

.page-home .home-closing__figure {
  border: 0;
  background: var(--mist);
}

.page-home .home-closing__body {
  padding-block: clamp(38px, 4.6vw, 68px);
}

.page-home .home-closing__body p {
  margin: 16px 0 0;
  max-width: 42rem;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-home .home-closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: clamp(22px, 2.6vw, 34px);
  padding-top: 22px;
  border-top: 1px solid var(--hair);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-home .home-steps-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-home .home-timeline {
    grid-template-columns: repeat(4, 1fr);
  }

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

@media (min-width: 900px) {
  .page-home .hero-path {
    display: block;
    position: relative;
    height: 320px;
    margin-top: clamp(40px, 4.4vw, 64px);
  }

  .page-home .hero-path__line {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
  }

  .page-home .hero-path__line polyline {
    fill: none;
    stroke: var(--line);
    stroke-width: 1;
    stroke-dasharray: 5 6;
    vector-effect: non-scaling-stroke;
  }

  .page-home .hero-path .path-node {
    position: absolute;
    width: min(258px, 27%);
    transform: translateX(-50%);
    padding: 16px 18px;
  }

  .page-home .hero-path .path-node--1 { left: 18%; top: 0; }
  .page-home .hero-path .path-node--2 { left: 50%; top: 96px; }
  .page-home .hero-path .path-node--3 { left: 82%; top: 192px; }

  .page-home .home-split__main,
  .page-home .home-split__side,
  .page-home .home-split__table {
    min-width: 0;
  }
}

@media (min-width: 1040px) {
  .page-home .home-split__side {
    padding-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-path .path-node,
  .page-home .home-steps-list .step-card,
  .page-home .home-accordion .accordion__trigger,
  .page-home .home-accordion .accordion__mark,
  .page-home .home-toc .toc__link {
    transition: none;
  }

  .page-home .hero-path .path-node:hover,
  .page-home .hero-path .path-node:focus-visible {
    transform: none;
  }
}
<<<END>>>