.page-home {
  --home-edge: 20px;
  --home-max: 1200px;
  display: block;
  width: 100%;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-2);
  line-height: 1.75;
  background: var(--paper);
}

.page-home *,
.page-home *::before,
.page-home *::after {
  box-sizing: border-box;
}

.page-home .wrap {
  width: 100%;
  max-width: var(--home-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--home-edge);
  padding-right: var(--home-edge);
}

/* ---------- 面包屑 ---------- */
.page-home .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 0 0;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--pit);
}

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

.page-home .breadcrumbs__link:hover,
.page-home .breadcrumbs__link:focus-visible {
  color: var(--mango-deep);
  border-bottom-color: var(--mango-deep);
}

.page-home .breadcrumbs__sep {
  color: var(--mango);
}

.page-home .breadcrumbs__current {
  color: var(--berry);
  font-weight: 700;
}

/* ---------- 首屏：索引轨 + 堆叠面板 ---------- */
.page-home .hero {
  padding: 22px 0 46px;
}

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

.page-home .hero__rail {
  border-top: 2px solid var(--ink);
  padding-top: 12px;
}

.page-home .hero__rail-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .22em;
  color: var(--pit);
}

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

.page-home .rail-list__item {
  border-bottom: var(--hair);
}

.page-home .rail-list__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px;
  color: var(--ink);
  text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease);
}

.page-home .rail-list__link:hover,
.page-home .rail-list__link:focus-visible {
  background: var(--mango);
}

.page-home .rail-list__num {
  font-size: 12px;
  font-weight: 900;
  color: var(--mango-deep);
}

.page-home .rail-list__link:hover .rail-list__num {
  color: var(--ink);
}

.page-home .rail-list__label {
  font-size: 15px;
  font-weight: 600;
}

.page-home .hero__rail-note {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--pit);
  line-height: 1.6;
}

.page-home .hero__stage {
  display: grid;
  gap: 0;
}

.page-home .hero-panel {
  position: relative;
  border: var(--line);
  background: var(--paper);
}

.page-home .hero-panel--cover {
  display: flex;
  align-items: flex-end;
  min-height: 360px;
  overflow: hidden;
}

.page-home .cover-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-home .hero-panel--cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(251, 244, 231, 0) 26%, rgba(251, 244, 231, .88) 70%, #FBF4E7 100%);
}

.page-home .cover-body {
  position: relative;
  z-index: 1;
  padding: 22px 18px 24px;
  width: 100%;
}

.page-home .eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
  color: var(--mango-deep);
}

.page-home .cover-title {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.6vw, 66px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-home .cover-lead {
  margin: 0;
  max-width: 30em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-home .hero-panel--peek {
  margin-top: -1px;
  padding: 22px 18px 20px;
  background: var(--apricot);
}

.page-home .tape-tag {
  position: absolute;
  top: -13px;
  right: 16px;
  transform: rotate(-2deg);
  background: var(--mango);
  color: var(--ink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  padding: 5px 12px;
}

.page-home .peek-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .peek-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 16px;
  font-weight: 700;
}

.page-home .peek-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 26px;
  flex: none;
  background: var(--paper);
  border: 1px solid var(--ink);
  font-size: 12px;
  font-weight: 900;
  color: var(--ink);
}

.page-home .peek-note {
  margin: 14px 0 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--pit);
}

.page-home .peek-go,
.page-home .dark-go,
.page-home .member-card__go,
.page-home .sub-go,
.page-home .status-go {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--mango);
  padding-bottom: 2px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-home .peek-go:hover,
.page-home .dark-go:hover,
.page-home .member-card__go:hover,
.page-home .sub-go:hover,
.page-home .status-go:hover,
.page-home .peek-go:focus-visible,
.page-home .dark-go:focus-visible,
.page-home .member-card__go:focus-visible,
.page-home .sub-go:focus-visible,
.page-home .status-go:focus-visible {
  color: var(--mango-deep);
  border-bottom-color: var(--mango-deep);
}

.page-home .hero-panel--dark {
  margin-top: -1px;
  padding: 20px 18px 22px;
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

.page-home .dark-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 900;
  letter-spacing: .04em;
  color: var(--mango);
}

.page-home .peek-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .28);
  font-size: 14px;
}

.page-home .peek-stat b {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
  color: var(--white);
}

.page-home .dark-go {
  margin-top: 14px;
  color: var(--white);
  border-bottom-color: var(--mango);
}

.page-home .dark-go:hover,
.page-home .dark-go:focus-visible {
  color: var(--mango);
  border-bottom-color: var(--mango);
}

/* ---------- 章节通用 ---------- */
.page-home .section {
  padding: 40px 0;
}

.page-home .section + .section {
  border-top: var(--line);
}

.page-home .section__head {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.page-home .section__head--tight {
  margin-bottom: 18px;
}

.page-home .section__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--mango);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 900;
  clip-path: polygon(0 0, 100% 0, 100% 74%, 84% 100%, 0 100%);
}

.page-home .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 5.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-home .section-lead {
  margin: 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--pit);
}

/* ---------- 01 三步 ---------- */
.page-home .steps-arrow {
  margin: 0 0 18px;
  border: var(--hair);
  background: var(--apricot);
}

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

.page-home .steps-arrow figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--pit);
  border-top: var(--hair);
}

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

.page-home .step-card {
  position: relative;
  padding: 20px 18px 18px;
  border: var(--line);
  background: var(--paper);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}

.page-home .step-card:hover,
.page-home .step-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 8px 8px 0 var(--apricot);
  background: var(--white);
}

.page-home .step-card__stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 44px;
  background: var(--mango);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 900;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 84% 100%, 0 100%);
}

.page-home .step-card__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -.01em;
}

.page-home .step-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-home .step-card__more {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pit);
}

.page-home .step-card__go {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--mango-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--mango-deep);
}

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

/* ---------- 02 会员中心 ---------- */
.page-home .member-grid {
  display: grid;
  gap: 18px;
}

.page-home .member-card {
  padding: 20px 18px 22px;
  border: var(--line);
  background: var(--paper);
}

.page-home .member-card--contact {
  background: var(--cream);
}

.page-home .member-card--files {
  background: var(--apricot);
}

.page-home .member-card__label {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
  color: var(--berry);
}

.page-home .member-card__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-home .contact-rows {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  border-top: var(--hair);
}

.page-home .contact-row {
  display: grid;
  gap: 2px;
  padding: 10px 0;
  border-bottom: var(--hair);
}

.page-home .contact-row__key {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--pit);
}

.page-home .contact-row__val {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  word-break: break-word;
}

.page-home .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--mango);
  color: var(--ink);
  border: 1px solid var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background .18s var(--ease), transform .12s var(--ease);
}

.page-home .copy-btn:hover,
.page-home .copy-btn:focus-visible {
  background: var(--mango-deep);
  color: var(--white);
}

.page-home .copy-btn:active {
  transform: translateY(1px);
}

.page-home .indexlist {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  border-top: var(--hair);
}

.page-home .indexlist__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 8px;
  border-bottom: var(--hair);
  font-size: 15px;
}

.page-home .indexlist__row:nth-child(odd) {
  background: var(--cream);
}

.page-home .indexlist__key {
  line-height: 1.6;
}

.page-home .indexlist__val {
  flex: none;
  font-weight: 900;
  color: var(--mango-deep);
}

.page-home .member-card__note {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pit);
}

/* ---------- 03 历史版本 ---------- */
.page-home .versions-wrap {
  display: grid;
  gap: 22px;
}

.page-home .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  position: relative;
}

.page-home .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--ink);
}

.page-home .timeline__item {
  position: relative;
  padding: 0 0 20px 0;
}

.page-home .timeline__item:last-child {
  padding-bottom: 0;
}

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--berry);
  border: 1px solid var(--ink);
}

.page-home .timeline__tag {
  display: inline-block;
  padding: 2px 8px;
  background: var(--paper);
  border: 1px solid var(--ink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
}

.page-home .timeline__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.74;
}

.page-home .versions-figure {
  margin: 0;
  border: var(--line);
  background: var(--apricot);
}

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

.page-home .versions-figure figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--pit);
  border-top: var(--hair);
}

/* ---------- 04 订阅指引 ---------- */
.page-home .section--subscribe {
  background: var(--paper);
}

.page-home .sub-steps {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-home .sub-step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  border-bottom: var(--hair);
}

.page-home .sub-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 28px;
  background: var(--lime);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 900;
}

.page-home .sub-step__text {
  font-size: 15px;
  line-height: 1.72;
}

.page-home .sub-note {
  margin: 0 0 14px;
  padding: 12px 14px;
  background: var(--apricot);
  border-left: 4px solid var(--berry);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 05 问答 ---------- */
.page-home .answers-panel {
  position: relative;
  overflow: hidden;
  border: var(--line);
  background: var(--cream);
}

.page-home .answers-panel__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
}

.page-home .answers-panel__body {
  position: relative;
  z-index: 1;
  padding: 22px 18px 24px;
}

.page-home .answer-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px 12px;
  margin-bottom: 10px;
  background: rgba(251, 244, 231, .9);
  border: var(--hair);
  color: var(--ink);
  text-decoration: none;
  transition: background .18s var(--ease), transform .18s var(--ease), border-color .18s var(--ease);
}

.page-home .answer-link:hover,
.page-home .answer-link:focus-visible {
  background: var(--white);
  border-color: var(--ink);
  transform: translateX(4px);
}

.page-home .page-home .tag,
.page-home .tag {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .06em;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
}

.page-home .tag--berry {
  background: var(--berry);
  border-color: var(--berry);
  color: var(--white);
}

.page-home .answer-link__q {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
}

.page-home .answer-link__go {
  font-size: 18px;
  font-weight: 900;
  color: var(--mango-deep);
}

.page-home .answers-contact {
  margin-top: 16px;
  padding-top: 16px;
  border-top: var(--hair);
}

.page-home .answers-contact__text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.72;
}

.page-home .answers-contact__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

/* ---------- 06 状态 ---------- */
.page-home .stat-grid {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-home .stat {
  display: grid;
  gap: 2px;
  padding: 14px 12px;
  border: var(--line);
  background: var(--paper);
}

.page-home .stat:nth-child(3n+2) {
  background: var(--apricot);
}

.page-home .stat__num {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .stat__label {
  font-size: 13px;
  color: var(--pit);
}

.page-home .status-line {
  margin: 0 0 12px;
  padding: 14px 16px;
  background: var(--ink);
  color: var(--white);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 768px) {
  .page-home {
    --home-edge: 32px;
  }

  .page-home .hero {
    padding-top: 28px;
  }

  .page-home .hero__grid {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-home .hero__stage {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    grid-template-rows: auto auto;
    align-items: start;
  }

  .page-home .hero-panel--cover {
    grid-column: 1 / -1;
    min-height: 400px;
  }

  .page-home .hero-panel--peek {
    margin-top: -24px;
    margin-left: -16px;
    margin-right: 10px;
    padding: 24px 20px 22px;
  }

  .page-home .hero-panel--dark {
    margin-top: -6px;
    margin-left: 10px;
    padding: 22px 20px 24px;
  }

  .page-home .cover-body {
    padding: 28px 26px 30px;
  }

  .page-home .section {
    padding: 52px 0;
  }

  .page-home .step-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    align-items: start;
  }

  .page-home .step-card__more {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height .22s var(--ease), opacity .22s var(--ease), margin .22s var(--ease);
    margin-top: 0;
  }

  .page-home .step-card:hover .step-card__more,
  .page-home .step-card:focus-within .step-card__more {
    max-height: 220px;
    opacity: 1;
    margin-top: 10px;
  }

  .page-home .member-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 16px;
    align-items: stretch;
  }

  .page-home .versions-wrap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 24px;
    align-items: start;
  }

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

  .page-home .answers-panel__body {
    padding: 28px 26px 30px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-home {
    --home-edge: 40px;
  }

  .page-home .hero__grid {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 36px;
  }

  .page-home .hero__rail {
    position: sticky;
    top: 88px;
  }

  .page-home .hero-panel--cover {
    min-height: 460px;
  }

  .page-home .hero-panel--peek {
    margin-top: -34px;
    margin-left: -24px;
    margin-right: 14px;
  }

  .page-home .section {
    padding: 62px 0;
  }

  .page-home .section__head {
    grid-template-columns: 56px minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 20px;
    align-items: start;
    margin-bottom: 30px;
  }

  .page-home .section__head .section__num {
    grid-row: 1 / span 2;
    width: 48px;
    height: 48px;
    font-size: 16px;
    align-self: start;
  }

  .page-home .section__head .section-title {
    grid-column: 2;
  }

  .page-home .section__head .section-lead {
    grid-column: 2;
  }

  .page-home .timeline {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding: 30px 0 0 0;
  }

  .page-home .timeline::before {
    left: 0;
    right: 0;
    top: 5px;
    bottom: auto;
    width: auto;
    height: 2px;
  }

  .page-home .timeline__item {
    padding: 0 18px 0 0;
  }

  .page-home .timeline__item::before {
    left: 0;
    top: -30px;
  }

  .page-home .sub-step {
    grid-template-columns: 46px minmax(0, 1fr);
    padding: 14px 0;
  }

  .page-home .answer-link {
    padding: 16px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .step-card,
  .page-home .answer-link,
  .page-home .rail-list__link,
  .page-home .copy-btn,
  .page-home .step-card__more {
    transition-duration: .01ms;
  }

  .page-home .step-card:hover,
  .page-home .answer-link:hover {
    transform: none;
  }
}