.page-home {
  background: var(--cloud);
  color: var(--graphite);
  overflow-x: clip;
}

/* ============ 首屏 ============ */
.page-home .hero {
  position: relative;
  isolation: isolate;
  padding: calc(var(--header-h) + clamp(34px, 7vw, 86px)) 0 clamp(44px, 7vw, 96px);
  background:
    radial-gradient(90% 70% at 88% 4%, rgba(41, 199, 183, .20), transparent 62%),
    linear-gradient(158deg, var(--deep) 0%, var(--deep-dark) 100%);
  color: var(--cloud);
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -22vw;
  right: -16vw;
  width: 52vw;
  height: 52vw;
  max-width: 660px;
  max-height: 660px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, rgba(232, 163, 61, .30), transparent 66%);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -10vw;
  bottom: -16vw;
  width: 40vw;
  height: 40vw;
  max-width: 460px;
  max-height: 460px;
  border-radius: 42% 58% 55% 45% / 48% 42% 58% 52%;
  background: linear-gradient(140deg, rgba(41, 199, 183, .16), transparent 70%);
}

.page-home .hero__grid {
  display: grid;
  gap: clamp(30px, 5vw, 46px);
}

.page-home .hero__eyebrow {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-home .hero__title {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  font-size: clamp(2.05rem, 6.6vw, 4.15rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: .025em;
  color: var(--cloud);
}

.page-home .hero__lede {
  max-width: 34ch;
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: 1.0625rem;
  line-height: 1.78;
  color: rgba(247, 244, 238, .78);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero__side {
  display: grid;
  gap: clamp(18px, 2.5vw, 26px);
  align-content: start;
}

.page-home .hero__media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(247, 244, 238, .16);
}

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

.page-home .hero__log-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .16em;
  color: rgba(247, 244, 238, .58);
}

.page-home .hero-log {
  list-style: none;
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 1px solid rgba(247, 244, 238, .18);
}

.page-home .hero-log__item {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(247, 244, 238, .10);
}

.page-home .hero-log__item:last-child {
  border-bottom: 0;
}

.page-home .hero-log__item::before {
  content: "";
  position: absolute;
  left: -22.5px;
  top: 17px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
}

.page-home .hero-log__item:first-child::before {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(232, 163, 61, .22);
}

.page-home .hero-log__time {
  flex: 0 0 78px;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-home .hero-log__text {
  flex: 1 1 160px;
  font-size: .9375rem;
  line-height: 1.62;
  color: rgba(247, 244, 238, .82);
}

@media (min-width: 960px) {
  .page-home .hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(34px, 4.5vw, 68px);
    align-items: start;
  }
}

/* ============ 章节导航 ============ */
.page-home .chapter-rail {
  background: var(--cloud);
  border-bottom: 1px solid var(--line);
}

.page-home .chapter-rail__inner {
  display: flex;
  gap: 6px;
  padding: 12px 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .chapter-rail__inner::-webkit-scrollbar {
  display: none;
}

.page-home .sec-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .9375rem;
  color: var(--graphite);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .24s var(--ease), border-color .24s var(--ease), color .24s var(--ease);
}

.page-home .sec-link__num {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--gold);
  transition: color .24s var(--ease);
}

.page-home .sec-link:hover,
.page-home .sec-link:focus-visible {
  border-color: var(--line-gold);
  background: rgba(232, 163, 61, .08);
}

.page-home .sec-link.is-active {
  background: var(--mint);
  border-color: rgba(41, 199, 183, .5);
}

.page-home .sec-link.is-active .sec-link__num {
  color: var(--deep);
}

/* ============ 章节通用 ============ */
.page-home .sec {
  padding: clamp(52px, 8vw, 108px) 0;
}

.page-home .sec + .sec {
  border-top: 1px solid var(--line);
}

.page-home .sec__head {
  max-width: 60ch;
  margin-bottom: clamp(30px, 4.5vw, 54px);
}

.page-home .sec-num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5.6vw, 3.4rem);
  line-height: 1;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-home .sec__title {
  margin: 0 0 12px;
  font-size: clamp(1.55rem, 3.9vw, 2.45rem);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: .02em;
  color: var(--graphite);
}

.page-home .sec__lede {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ============ 02 电脑端说明 ============ */
.page-home .desktop-grid {
  align-items: start;
}

.page-home .sec__aside {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-home .aside-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-home .sec__aside-cap {
  margin: 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--mist);
}

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

.page-home .steps__item {
  display: grid;
  grid-template-columns: 42px 1fr;
  column-gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.page-home .steps__item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-home .steps__num {
  grid-area: 1 / 1 / 3 / 2;
  font-family: var(--font-mono);
  font-size: .9375rem;
  line-height: 1.7;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-home .steps__title {
  grid-area: 1 / 2;
  margin: 0 0 6px;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--graphite);
}

.page-home .steps__text {
  grid-area: 2 / 2;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ============ 03 下载通道 ============ */
.page-home .channels {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-home .chan {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--radius-md);
}

.page-home .chan__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .16em;
}

.page-home .chan__title {
  margin: 0;
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.3;
}

.page-home .chan__desc {
  margin: 0;
  font-size: .9688rem;
  line-height: 1.75;
}

.page-home .chan__fit {
  margin: 0;
  font-size: .875rem;
  line-height: 1.7;
}

.page-home .chan__link {
  margin-top: auto;
  padding-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9375rem;
  font-weight: 700;
  text-decoration: none;
  transition: color .24s var(--ease);
}

.page-home .chan__link::after {
  content: "→";
  transition: transform .24s var(--ease);
}

.page-home .chan__link:hover::after,
.page-home .chan__link:focus-visible::after {
  transform: translateX(4px);
}

.page-home .chan--mobile {
  background: linear-gradient(155deg, var(--deep) 0%, var(--deep-dark) 100%);
  color: var(--cloud);
}

.page-home .chan--mobile .chan__kicker {
  color: var(--teal);
}

.page-home .chan--mobile .chan__desc,
.page-home .chan--mobile .chan__fit {
  color: rgba(247, 244, 238, .78);
}

.page-home .chan--mobile .chan__link {
  color: var(--gold);
}

.page-home .chan--desktop {
  background: var(--gold-light);
  color: var(--graphite);
}

.page-home .chan--desktop .chan__kicker {
  color: rgba(27, 36, 48, .58);
}

.page-home .chan--desktop .chan__desc {
  color: rgba(27, 36, 48, .84);
}

.page-home .chan--desktop .chan__fit {
  color: rgba(27, 36, 48, .6);
}

.page-home .chan--desktop .chan__link {
  color: var(--deep);
}

.page-home .chan--offline {
  background: rgba(232, 163, 61, .06);
  border: 1px solid var(--line-gold);
  color: var(--graphite);
}

.page-home .chan--offline .chan__kicker {
  color: var(--mist);
}

.page-home .chan--offline .chan__desc {
  color: rgba(27, 36, 48, .8);
}

.page-home .chan--offline .chan__link {
  color: var(--deep);
}

.page-home .channels__foot {
  margin-top: clamp(24px, 4vw, 44px);
  display: grid;
  gap: 18px;
  align-items: center;
}

.page-home .channels__media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-home .channels__foot p {
  margin: 0;
  font-size: .9688rem;
  line-height: 1.8;
  color: var(--mist);
}

@media (min-width: 860px) {
  .page-home .channels {
    grid-template-columns: 1.12fr .88fr;
  }

  .page-home .chan--offline {
    grid-column: 1 / -1;
  }

  .page-home .channels__foot {
    grid-template-columns: 340px 1fr;
    gap: clamp(24px, 4vw, 52px);
  }
}

/* ============ 04 更新条目 ============ */
.page-home .log__banner {
  margin-bottom: clamp(22px, 3.5vw, 40px);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-home .log-list {
  border-top: 1px solid var(--line);
}

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

.page-home .log-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 20px;
  padding: 20px 6px;
  list-style: none;
  cursor: pointer;
  transition: background-color .24s var(--ease);
}

.page-home .log-item__head::-webkit-details-marker {
  display: none;
}

.page-home .log-item__head:hover,
.page-home .log-item__head:focus-visible {
  background: rgba(232, 163, 61, .07);
}

.page-home .log-item__date {
  flex: 0 0 92px;
  font-family: var(--font-mono);
  font-size: .8438rem;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-home .log-item__title {
  flex: 1 1 220px;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--graphite);
}

.page-home .log-item__chev {
  flex: 0 0 auto;
  align-self: center;
  margin-left: auto;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--mist);
  border-bottom: 1.5px solid var(--mist);
  transform: rotate(45deg);
  transition: transform .24s var(--ease);
}

.page-home .log-item[open] .log-item__chev {
  transform: rotate(-135deg);
}

.page-home .log-item__body {
  padding: 0 6px 22px;
  max-width: 66ch;
}

.page-home .log-item__body p {
  margin: 0;
  font-size: .9688rem;
  line-height: 1.8;
  color: var(--graphite);
}

/* ============ 05 服务与联系 ============ */
.page-home .sec--service {
  background: linear-gradient(180deg, var(--deep) 0%, var(--deep-dark) 100%);
  color: var(--cloud);
  border-top-color: transparent;
}

.page-home .sec--service .sec__title {
  color: var(--cloud);
}

.page-home .sec--service .sec__lede {
  color: rgba(247, 244, 238, .72);
}

.page-home .svc {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-home .svc__mail {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-md);
  background: rgba(232, 163, 61, .08);
}

.page-home .svc__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-home .svc__addr {
  margin: 10px 0 20px;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--cloud);
  overflow-wrap: anywhere;
}

.page-home .svc__hint {
  margin: 18px 0 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: rgba(247, 244, 238, .72);
}

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

.page-home .svc__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-home .svc__row:first-child {
  border-top: 1px solid var(--line-light);
}

.page-home .svc__key {
  flex: 0 0 116px;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-home .svc__val {
  flex: 1 1 200px;
  font-size: .9688rem;
  line-height: 1.7;
  color: rgba(247, 244, 238, .9);
}

.page-home .svc__more {
  margin: clamp(26px, 4vw, 44px) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: .9375rem;
}

.page-home .svc__more a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 199, 183, .42);
  padding-bottom: 2px;
  transition: color .24s var(--ease), border-color .24s var(--ease);
}

.page-home .svc__more a:hover,
.page-home .svc__more a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--line-gold);
}

@media (min-width: 900px) {
  .page-home .svc {
    grid-template-columns: 5fr 4fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}