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

.page-home [id] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏框景 ---------- */
.page-home .hero {
  padding-top: 16px;
}

.page-home .hero__frame {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--ink);
  background: var(--paper);
}

.page-home .hero__main {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 28px 20px 26px;
}

.page-home .hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(32px, 8vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-home .hero__lede {
  max-width: 36em;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-home .hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 4px;
}

.page-home .hero__side {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--ink);
}

.page-home .hero__media.frame-media {
  margin: 0;
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--ink-2);
}

.page-home .hero__media .frame-media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .hero__index {
  padding: 18px 20px 22px;
  border-top: 1px solid var(--grid);
  background: var(--card);
}

.page-home .hero__index-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--green);
}

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

.page-home .hero__index-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--grid);
  color: var(--ink);
  font-size: 14.5px;
  text-decoration: none;
  transition: color 160ms ease-out, padding-left 160ms ease-out;
}

.page-home .hero__index-list a:hover,
.page-home .hero__index-list a:focus-visible {
  color: var(--green);
  padding-left: 6px;
}

.page-home .hero__index-list .mono {
  font-size: 12px;
  color: var(--green);
}

/* ---------- 章节带与左侧刻度 ---------- */
.page-home .flow {
  padding-bottom: 40px;
}

.page-home .band {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--grid);
}

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

.page-home .band__body {
  padding: 34px 0 42px;
}

.page-home .band__head {
  max-width: 640px;
  margin-bottom: 28px;
}

.page-home .band h2 {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(25px, 4.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-home .band__lede {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 速览 ---------- */
.page-home .glance {
  display: grid;
  gap: 22px;
}

.page-home .glance__media.frame-media {
  margin: 0;
  position: relative;
  overflow: hidden;
  aspect-ratio: 10 / 7;
  background: var(--ink-2);
}

.page-home .glance__media .frame-media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .glance__stats {
  border-bottom: 1px solid var(--grid);
}

.page-home .stat {
  display: grid;
  grid-template-columns: minmax(76px, auto) 1fr;
  align-items: center;
  gap: 4px 18px;
  padding: 16px 0;
  border-top: 1px solid var(--grid);
}

.page-home .stat:first-child {
  border-top-color: var(--ink);
}

.page-home .stat__num {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(30px, 6.5vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-home .stat__unit {
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--green);
}

.page-home .stat__label {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-home .stat__label strong {
  font-weight: 500;
  color: var(--ink);
}

/* ---------- 四条路径 ---------- */
.page-home .paths {
  display: grid;
  gap: 14px;
}

.page-home .path {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 18px;
  background: var(--card);
  border: 1px solid var(--grid);
  transition: border-color 180ms ease-out, transform 180ms ease-out;
}

.page-home .path:hover,
.page-home .path:focus-within {
  border-color: var(--green);
  transform: translateY(-3px);
}

.page-home .path__num {
  align-self: flex-start;
  padding: 2px 7px;
  font-size: 12px;
  color: var(--ink);
  background: var(--whistle);
}

.page-home .path__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .path__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-home .path__link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--green);
}

.page-home .path__link::after {
  content: " →";
}

/* ---------- 深色闭环章节 ---------- */
.page-home .band--dark {
  margin-top: 8px;
  background: var(--green-deep);
  border-top-color: var(--green-deep);
  padding: 0 20px;
}

.page-home .band--dark .band__body {
  padding-left: 0;
  padding-right: 0;
}

.page-home .band--dark h2 {
  color: var(--paper);
}

.page-home .band--dark .eyebrow {
  color: var(--green-bright);
}

.page-home .band--dark .band__lede {
  color: var(--on-dark-dim);
}

.page-home .loop {
  display: grid;
  gap: 26px;
}

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

.page-home .loop__step {
  position: relative;
  padding: 0 0 22px 26px;
  border-left: 1px solid rgba(245, 242, 234, 0.24);
}

.page-home .loop__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-home .loop__step::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 7px;
  width: 8px;
  height: 8px;
  background: var(--green-bright);
}

.page-home .loop__step--done::before {
  background: var(--whistle);
}

.page-home .loop__marker {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--green-bright);
}

.page-home .loop__step--done .loop__marker {
  color: var(--whistle);
}

.page-home .loop__title {
  margin: 0 0 5px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.35;
  color: var(--paper);
}

.page-home .loop__step p {
  margin: 0;
  max-width: 40ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--on-dark-dim);
}

.page-home .loop__media.frame-media {
  margin: 0;
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--ink-2);
}

.page-home .loop__media .frame-media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 版本提示 ---------- */
.page-home .band--notice {
  margin-top: 8px;
  background: var(--ink);
  border-top-color: var(--ink);
  padding: 0 20px;
  color: var(--on-dark);
}

.page-home .band--notice .band__body {
  padding-left: 0;
  padding-right: 0;
}

.page-home .band--notice h2 {
  color: var(--paper);
}

.page-home .band--notice .eyebrow {
  color: var(--amber);
}

.page-home .notice {
  display: grid;
  gap: 24px;
}

.page-home .notice__text {
  margin: 14px 0 22px;
  max-width: 44ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--on-dark);
}

.page-home .notice__media.frame-media {
  margin: 0;
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 7;
  background: var(--ink-2);
}

.page-home .notice__media .frame-media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

/* ---------- 信任与联络 ---------- */
.page-home .band--trust .band__body {
  padding-bottom: 8px;
}

.page-home .trust {
  display: grid;
  gap: 26px;
  padding-bottom: 24px;
  border-top: 1px solid var(--ink);
  padding-top: 26px;
}

.page-home .trust__copy p {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-home .trust__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 18px;
}

.page-home .trust__links a {
  font-size: 14px;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--green);
  padding-bottom: 2px;
}

.page-home .trust__links a:hover,
.page-home .trust__links a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.page-home .trust__contact {
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--grid);
  border-left: 3px solid var(--whistle);
}

.page-home .trust__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--green);
}

.page-home .trust__email {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 15px;
  word-break: break-all;
}

.page-home .trust__email a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--grid);
}

.page-home .trust__email a:hover,
.page-home .trust__email a:focus-visible {
  border-bottom-color: var(--green);
  color: var(--green);
}

.page-home .trust__hours {
  margin: 0 0 16px;
  font-size: 12.5px;
  color: var(--ink-2);
}

.page-home .trust__icp {
  margin: 16px 0 0;
  font-size: 12px;
  color: var(--green);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-home .hero__main {
    padding: 40px 32px 34px;
  }

  .page-home .glance {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 28px;
    align-items: start;
  }

  .page-home .glance__media.frame-media {
    margin-top: 6px;
  }

  .page-home .paths {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .page-home .trust {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-home .hero__frame {
    grid-template-columns: minmax(0, 1fr) 344px;
  }

  .page-home .hero__main {
    padding: 54px 48px 46px;
    justify-content: center;
  }

  .page-home .hero__side {
    border-top: 0;
    border-left: 1px solid var(--ink);
  }

  .page-home .hero__media.frame-media {
    aspect-ratio: 3 / 4;
  }

  .page-home .band {
    grid-template-columns: var(--tick) minmax(0, 1fr);
  }

  .page-home .band__rail {
    display: block;
    border-right: 1px solid var(--grid);
    padding-top: 40px;
  }

  .page-home .band__rail .tick {
    position: sticky;
    top: 92px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--grid);
    transition: color 160ms ease-out;
  }

  .page-home .band__rail .tick[data-active="true"] {
    color: var(--green-bright);
  }

  .page-home .band__rail .tick::after {
    content: "";
    width: 1px;
    height: 54px;
    background: currentColor;
    opacity: 0.5;
  }

  .page-home .band__body {
    padding: 46px 0 56px 48px;
  }

  .page-home .band--dark .band__body,
  .page-home .band--notice .band__body {
    padding-left: 0;
    padding-right: 0;
  }

  .page-home .band--dark,
  .page-home .band--notice {
    padding-right: 0;
  }

  .page-home .loop {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-home .loop__media.frame-media {
    aspect-ratio: 4 / 5;
  }

  .page-home .notice {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 40px;
    align-items: center;
  }

  .page-home .notice__media.frame-media {
    aspect-ratio: 4 / 3;
  }

  .page-home .glance {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 40px;
  }
}

@media (min-width: 1080px) {
  .page-home .paths {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-home .path:nth-child(2) {
    margin-top: 26px;
  }

  .page-home .path:nth-child(3) {
    margin-top: 10px;
  }

  .page-home .path:nth-child(4) {
    margin-top: 50px;
  }

  .page-home .hero__main {
    padding: 64px 56px 54px;
  }
}
<<<END>>>