/* ============ 首页 page-home ============ */

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

.page-home .eyebrow {
  color: var(--fog);
  letter-spacing: .2em;
}

/* ---------- 首屏：对角切割 ---------- */

.page-home .hero {
  max-width: var(--maxw);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr;
  background-color: var(--paper);
  overflow: hidden;
}

.page-home .hero__panel {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
  padding: 40px 26px 48px;
  color: var(--paper);
  background-color: var(--green);
  background-image:
    repeating-linear-gradient(90deg, rgba(244, 241, 232, .07) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(0deg, rgba(244, 241, 232, .07) 0 1px, transparent 1px 34px),
    linear-gradient(158deg, var(--green) 0%, var(--green-deep) 100%);
}

.page-home .hero__panel .eyebrow {
  color: var(--line);
}

.page-home .hero__panel .version-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 4px 0 0;
}

.page-home .hero__panel .version-block__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--line);
  text-transform: uppercase;
}

.page-home .hero__panel .version-block__value {
  font-family: var(--font-mono);
  font-size: clamp(64px, 20vw, 108px);
  font-weight: 900;
  line-height: .9;
  letter-spacing: -.04em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-home .hero__note {
  margin: 0;
  max-width: 32ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 241, 232, .82);
}

.page-home .hero__panel .btn--ghost {
  margin-top: 2px;
}

.page-home .hero__aside {
  display: grid;
  align-content: start;
  gap: 20px;
  padding: 36px 26px 48px;
}

.page-home .hero__aside .display-1 {
  margin: 0;
  color: var(--green);
  font-size: clamp(34px, 8.4vw, 56px);
  line-height: 1.06;
}

.page-home .hero__aside .lead {
  margin: 0;
  max-width: 46ch;
  color: var(--rock);
}

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

.page-home .quick-link {
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--line);
  background: var(--paper-card);
  color: var(--green);
  font-size: 15px;
  text-decoration: none;
  transition: transform .24s var(--ease), border-color .24s var(--ease), color .24s var(--ease);
}

.page-home .quick-link:hover {
  transform: translateY(-2px);
  border-color: var(--blue);
  color: var(--blue-ink);
}

.page-home .quick-link:focus-visible {
  outline: 2px solid var(--blue-ink);
  outline-offset: 2px;
}

.page-home .hero__media {
  margin: 0;
  overflow: hidden;
  border-left: 3px solid var(--gold);
  background: var(--green-deep);
  aspect-ratio: 16 / 10;
}

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

/* ---------- 栏目清单卡片 ---------- */

.page-home .col-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: 34px;
}

.page-home .col-card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  transition: border-color .24s var(--ease);
}

.page-home .col-card[open] {
  border-color: var(--moss);
}

.page-home .col-card > summary {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 6px 14px;
  padding: 20px 20px 16px;
  list-style: none;
  cursor: pointer;
}

.page-home .col-card > summary::-webkit-details-marker {
  display: none;
}

.page-home .col-card > summary:focus-visible {
  outline: 2px solid var(--blue-ink);
  outline-offset: -3px;
}

.page-home .col-card__idx {
  grid-row: span 2;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-home .col-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--green);
}

.page-home .col-card__hint {
  font-size: 14px;
  line-height: 1.65;
  color: var(--fog);
}

.page-home .col-card__media {
  margin: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--moss);
}

.page-home .col-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .col-card__sub {
  list-style: none;
  margin: 0;
  padding: 14px 20px 20px;
}

.page-home .col-card__sub a {
  position: relative;
  display: block;
  padding: 10px 0 10px 18px;
  border-bottom: 1px dashed rgba(169, 195, 166, .6);
  color: var(--blue-ink);
  font-size: 15px;
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-home .col-card__sub li:last-child a {
  border-bottom: 0;
}

.page-home .col-card__sub a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--gold);
}

.page-home .col-card__sub a:hover {
  color: var(--green);
  padding-left: 24px;
}

/* ---------- 时间轴 ---------- */

.page-home .tl-band {
  background-color: var(--green-deep);
  background-image:
    repeating-linear-gradient(90deg, rgba(244, 241, 232, .05) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(0deg, rgba(244, 241, 232, .05) 0 1px, transparent 1px 40px);
  color: var(--paper);
}

.page-home .tl-band .eyebrow {
  color: var(--line);
}

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

.page-home .tl-band .lead {
  color: rgba(244, 241, 232, .78);
}

.page-home .tl {
  position: relative;
  list-style: none;
  margin: 38px 0 0;
  padding: 0 0 0 28px;
  border-left: 2px solid var(--moss);
}

.page-home .tl__item {
  position: relative;
  padding-bottom: 26px;
}

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

.page-home .tl__item::before {
  content: "";
  position: absolute;
  left: -36px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, .2);
}

.page-home .tl__link {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: transform .24s var(--ease);
}

.page-home .tl__link:hover {
  transform: translateX(3px);
}

.page-home .tl__link:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}

.page-home .tl__month {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-home .tl__month .tag {
  font-style: normal;
}

.page-home .tl__title {
  margin: 8px 0 4px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-home .tl__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 241, 232, .72);
}

.page-home .tl__figure {
  margin: 40px 0 0;
  border: 1px solid rgba(169, 195, 166, .35);
  overflow: hidden;
  background: var(--green);
}

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

/* ---------- 换设备三步 ---------- */

.page-home .return {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-home .return__body .h2 {
  margin-bottom: 8px;
}

.page-home .steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-home .steps__item {
  position: relative;
  margin-left: 19px;
  padding: 0 0 30px 34px;
  border-left: 1px dashed var(--line);
}

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

.page-home .steps__num {
  position: absolute;
  left: -19px;
  top: -3px;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--green);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .06em;
}

.page-home .steps__item .h3 {
  margin: 0 0 6px;
  font-size: 19px;
  color: var(--green);
}

.page-home .steps__item p {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

.page-home .return__note {
  margin: 22px 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--orange);
  background: var(--paper-card);
  font-size: 15px;
  line-height: 1.7;
  color: var(--rock);
}

.page-home .return__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--paper-card);
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

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

/* ---------- 三端差异 ---------- */

.page-home .dev-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: 32px;
}

.page-home .dev-card {
  padding: 26px 22px 28px;
  background: var(--green);
  color: var(--paper);
  border-left: 3px solid var(--gold);
}

.page-home .dev-card--lead {
  background-image: linear-gradient(150deg, var(--green) 0%, var(--green-deep) 100%);
}

.page-home .dev-card__k {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-home .dev-card .h3 {
  margin: 0 0 10px;
  font-size: 20px;
  color: var(--paper);
}

.page-home .dev-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 241, 232, .8);
}

/* ---------- 服务范围与联系方式 ---------- */

.page-home .service {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-home .service__intro .lead {
  margin-bottom: 24px;
}

.page-home .service__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-home .service__list li {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .service__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--fog);
}

.page-home .service__list span {
  font-size: 16px;
  color: var(--rock);
  word-break: break-word;
}

/* ---------- 中屏 ---------- */

@media (min-width: 720px) {
  .page-home .col-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-home .return {
    grid-template-columns: 1.1fr .9fr;
    gap: 44px;
    align-items: start;
  }

  .page-home .return__media {
    aspect-ratio: 1 / 1;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 900px) {
  .page-home .hero {
    grid-template-columns: 1.04fr .96fr;
    align-items: stretch;
  }

  .page-home .hero__panel {
    justify-content: center;
    min-height: 560px;
    padding: 76px 158px 84px 28px;
    clip-path: polygon(0 0, 100% 0, 76% 100%, 0 100%);
  }

  .page-home .hero__aside {
    align-content: center;
    padding: 72px 28px 84px 46px;
  }

  .page-home .hero__aside .display-1 {
    font-size: clamp(40px, 3.6vw, 54px);
  }

  .page-home .tl {
    padding: 46px 0 0;
    border-left: 0;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
  }

  .page-home .tl::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 10px;
    height: 2px;
    background: linear-gradient(90deg, var(--moss) 0%, var(--gold) 100%);
  }

  .page-home .tl__item {
    padding: 0 16px 0 0;
  }

  .page-home .tl__item::before {
    left: 0;
    top: 4px;
  }

  .page-home .dev-grid {
    grid-template-columns: 1.3fr 1fr 1fr;
  }

  .page-home .service {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-home .col-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-home .col-card:nth-child(2),
  .page-home .col-card:nth-child(5) {
    margin-top: 32px;
  }

  .page-home .hero__aside .lead {
    font-size: 18px;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-home .quick-link,
  .page-home .col-card,
  .page-home .col-card__sub a,
  .page-home .tl__link {
    transition: none;
  }

  .page-home .quick-link:hover,
  .page-home .tl__link:hover {
    transform: none;
  }
}