/* ============ 首页专属样式 · 作用域 .page-home ============ */
.page-home {
  --home-hair: rgba(201, 197, 214, .55);
  --home-on-dark: rgba(246, 243, 236, .82);
  --home-on-dark-soft: rgba(246, 243, 236, .62);
  --home-dark-line: rgba(231, 225, 250, .18);
}

/* ---------- 首屏封面 ---------- */
.page-home .cover__inner {
  display: grid;
  gap: clamp(34px, 5vw, 72px);
  align-items: end;
}

.page-home .cover__eyebrow {
  margin: 0 0 clamp(18px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--signal-cyan);
}

.page-home .cover__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(50px, 10vw, 104px);
  line-height: 1.05;
  letter-spacing: .02em;
  color: var(--paper-ivory);
}

.page-home .cover__lead {
  margin: clamp(20px, 3vw, 32px) 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--home-on-dark);
}

.page-home .cover__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-home .cover__textlink {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper-ivory);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(0, 180, 216, .5);
  transition: transform .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}

.page-home .cover__textlink:hover,
.page-home .cover__textlink:focus-visible {
  transform: translateX(4px);
  color: var(--signal-cyan);
  border-bottom-color: var(--signal-cyan);
}

.page-home .cover__side {
  display: grid;
  gap: 22px;
}

.page-home .home-cover-media {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--home-dark-line);
  transform: rotate(-1.5deg);
}

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

.page-home .cover__index {
  display: grid;
  border-top: 1px solid var(--home-dark-line);
}

.page-home .cover__index a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 6px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--home-on-dark-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--home-dark-line);
  transition: transform .16s var(--ease), color .16s var(--ease), background-color .16s var(--ease);
}

.page-home .cover__index a span {
  min-width: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal-cyan);
}

.page-home .cover__index a:hover,
.page-home .cover__index a:focus-visible {
  transform: translateX(4px);
  color: var(--paper-ivory);
  background-color: rgba(106, 43, 226, .22);
}

/* ---------- 三步 ---------- */
.page-home .home-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(22px, 3vw, 38px);
}

.page-home .home-steps__list .step {
  position: relative;
  padding-top: clamp(14px, 2vw, 24px);
  border-top: 1px solid var(--boundary-cloud);
  transition: transform .16s var(--ease), border-color .16s var(--ease);
}

.page-home .home-steps__list .step:hover {
  transform: translateY(-4px);
  border-top-color: var(--pulse-violet);
}

.page-home .home-steps__list .step__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(56px, 11vw, 104px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--pulse-violet);
  margin-bottom: 12px;
}

@supports (-webkit-text-stroke: 1px currentColor) {
  .page-home .home-steps__list .step:nth-child(odd) .step__num {
    color: transparent;
    -webkit-text-stroke: 2px var(--pulse-violet);
  }
}

.page-home .home-steps__list .step__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: .02em;
  color: var(--ink-graphite);
}

.page-home .home-steps__list .step__desc {
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-home .home-steps__note {
  margin-top: clamp(28px, 4vw, 44px);
  max-width: 60em;
}

/* ---------- 四个栏目 ---------- */
.page-home .home-columns__banner {
  margin: 0 0 clamp(24px, 3vw, 38px);
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--home-hair);
}

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

.page-home .home-columns__strip {
  display: grid;
  border-top: 1px solid var(--boundary-cloud);
}

.page-home .home-columns__strip .index-strip__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 4px 16px;
  padding: clamp(16px, 2vw, 22px) 12px;
  text-decoration: none;
  color: var(--ink-graphite);
  border-bottom: 1px solid var(--boundary-cloud);
  transition: transform .16s var(--ease), background-color .16s var(--ease), border-bottom-color .16s var(--ease);
}

.page-home .home-columns__strip .index-strip__num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--signal-cyan);
  padding-top: 4px;
}

.page-home .home-columns__strip .index-strip__title {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: .02em;
}

.page-home .home-columns__strip .index-strip__meta {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-mute);
}

.page-home .home-columns__strip .index-strip__item:hover,
.page-home .home-columns__strip .index-strip__item:focus-visible {
  transform: translateX(4px);
  background-color: var(--lilac-mist);
  border-bottom-color: var(--pulse-violet);
}

.page-home .home-columns__foot {
  margin: clamp(24px, 3vw, 34px) 0 0;
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 版本与节奏 ---------- */
.page-home .home-version__inner {
  display: grid;
  gap: clamp(30px, 4vw, 54px);
}

.page-home .home-version__timeline {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-home .home-version__timeline .timeline__node p {
  margin: 6px 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-home .home-version__timeline .timeline__title {
  margin: 4px 0 0;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--ink-graphite);
}

.page-home .home-version__side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-home .home-version__media {
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--home-hair);
}

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

/* ---------- 快答 ---------- */
.page-home .home-quick__list {
  margin-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--boundary-cloud);
}

.page-home .home-quick__item {
  border-bottom: 1px solid var(--boundary-cloud);
}

.page-home .home-quick__item summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 10px;
  cursor: pointer;
  list-style: none;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--ink-graphite);
  transition: background-color .16s var(--ease), color .16s var(--ease);
}

.page-home .home-quick__item summary::-webkit-details-marker {
  display: none;
}

.page-home .home-quick__item summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 400;
  color: var(--pulse-violet);
  min-width: 18px;
}

.page-home .home-quick__item[open] summary::before {
  content: "−";
}

.page-home .home-quick__item summary:hover,
.page-home .home-quick__item summary:focus-visible {
  background-color: var(--lilac-mist);
}

.page-home .home-quick__item p {
  margin: 0;
  padding: 0 10px 22px 42px;
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-home .home-quick__more {
  margin: clamp(24px, 3vw, 34px) 0 0;
}

/* ---------- 服务范围 ---------- */
.page-home .home-service__inner {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  align-items: center;
}

.page-home .home-service__media {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(246, 243, 236, .2);
}

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

.page-home .home-service__body .section__title {
  color: var(--paper-ivory);
}

.page-home .home-service__lead {
  margin: clamp(16px, 2vw, 22px) 0 0;
  max-width: 40em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--home-on-dark);
}

.page-home .home-service__facts {
  list-style: none;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .home-service__facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--home-on-dark-soft);
  border-bottom: 1px solid rgba(246, 243, 236, .16);
  padding-bottom: 10px;
}

.page-home .home-service__facts span {
  font-family: var(--font-display);
  font-size: 32px;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--amber-highland);
  min-width: 62px;
}

.page-home .home-service__note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 42em;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--home-on-dark-soft);
}

.page-home .home-service__link {
  margin: clamp(22px, 3vw, 30px) 0 0;
}

/* ---------- 继续往下 ---------- */
.page-home .home-next__list {
  display: grid;
  margin-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--boundary-cloud);
}

.page-home .home-next__link {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 16px;
  padding: clamp(18px, 2.4vw, 26px) 10px;
  text-decoration: none;
  color: var(--ink-graphite);
  border-bottom: 1px solid var(--boundary-cloud);
  transition: transform .16s var(--ease), background-color .16s var(--ease), border-bottom-color .16s var(--ease);
}

.page-home .home-next__link:hover,
.page-home .home-next__link:focus-visible {
  transform: translateX(4px);
  background-color: var(--lilac-mist);
  border-bottom-color: var(--pulse-violet);
}

.page-home .home-next__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan-ink);
}

.page-home .home-next__text {
  display: grid;
  gap: 4px;
}

.page-home .home-next__text strong {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: .02em;
}

.page-home .home-next__text em {
  font-style: normal;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-mute);
}

.page-home .home-next__arrow {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--pulse-violet);
  text-align: right;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-home .home-columns__strip .index-strip__item {
    grid-template-columns: 64px minmax(0, 1fr) 300px;
    align-items: baseline;
  }

  .page-home .home-columns__strip .index-strip__meta {
    grid-column: 3;
    text-align: right;
  }
}

@media (min-width: 860px) {
  .page-home .home-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-home .cover__inner {
    grid-template-columns: minmax(0, 1.18fr) minmax(300px, .82fr);
  }

  .page-home .home-service__inner {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }
}

@media (min-width: 980px) {
  .page-home .home-version__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(240px, .6fr);
  }
}

@media (max-width: 640px) {
  .page-home .home-cover-media {
    transform: none;
  }

  .page-home .home-quick__item p {
    padding-left: 10px;
  }

  .page-home .home-columns__strip .index-strip__item {
    padding-left: 4px;
    padding-right: 4px;
  }

  .page-home .home-service__facts li {
    flex-direction: column;
    gap: 4px;
  }
}