.page-home {
  --home-gap: clamp(20px, 3vw, 32px);
}

/* ---------- 封面首屏 ---------- */
.page-home .hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 92vh;
  padding: clamp(100px, 15vh, 168px) 0 clamp(44px, 8vh, 88px);
  overflow: hidden;
  isolation: isolate;
}

.page-home .hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-home .hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 28%;
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(110% 75% at 12% 16%, rgba(86, 200, 222, 0.1) 0%, rgba(6, 10, 22, 0) 55%),
    linear-gradient(180deg, rgba(6, 10, 22, 0.62) 0%, rgba(6, 10, 22, 0.88) 55%, var(--ink) 100%);
}

.page-home .hero__inner {
  width: 100%;
}

.page-home .hero .breadcrumb {
  margin-bottom: clamp(22px, 4vh, 40px);
  color: var(--mute);
}

.page-home .hero__tag {
  display: inline-block;
  margin-bottom: 18px;
}

.page-home .hero__title {
  margin: 0 0 20px;
  max-width: 17ch;
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--silver);
}

.page-home .hero__lede {
  max-width: 46ch;
  margin: 0 0 clamp(28px, 5vh, 48px);
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.75;
  color: var(--body-text);
}

.page-home .hero__index {
  display: flex;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
}

.page-home .hero__index-item {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 20px 15px 0;
  font-size: 0.9375rem;
  color: var(--body-text);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-home .hero__index-item + .hero__index-item {
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.page-home .hero__index-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-home .hero__index-item:hover {
  color: var(--silver);
}

/* ---------- 通用段落说明 ---------- */
.page-home .section-head__desc {
  max-width: 62ch;
  margin-top: 14px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-home .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- 双通道 ---------- */
.page-home .dual {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
  margin-top: clamp(28px, 4vw, 44px);
}

@media (min-width: 900px) {
  .page-home .dual {
    grid-template-columns: 1fr 1fr;
  }
  .page-home .dual__card:nth-child(2) {
    margin-top: 32px;
  }
}

.page-home .dual__card {
  position: relative;
  padding: 30px 26px 26px;
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(13, 23, 48, 0.85) 0%, rgba(6, 10, 22, 0.55) 100%);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .dual__card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 26px;
  width: 52px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--star));
}

.page-home .dual__card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-home .dual__title {
  margin: 16px 0 12px;
  font-size: 1.375rem;
  line-height: 1.35;
  color: var(--silver);
}

.page-home .dual__text {
  margin: 0 0 20px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-home .dual__link {
  display: inline-block;
  font-size: 0.9375rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-home .dual__link:hover {
  border-bottom-color: var(--cyan);
}

.page-home .channels__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

.page-home .channels__figure img,
.page-home .versions__figure img,
.page-home .track__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 公告栏 ---------- */
.page-home .bulletin__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 900px) {
  .page-home .bulletin__head {
    grid-template-columns: 1fr 1fr;
    align-items: end;
  }
}

.page-home .bulletin__note {
  max-width: 48ch;
  margin: 0;
  line-height: 1.75;
  color: var(--body-text);
}

.page-home .bulletin__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
}

@media (min-width: 900px) {
  .page-home .bulletin__list {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-home .bulletin__item {
  padding: 26px 22px;
  background: var(--ink);
}

.page-home .bulletin__item p {
  margin: 14px 0 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--body-text);
}

.page-home .bulletin__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  margin-top: 28px;
}

.page-home .bulletin__hint {
  max-width: 52ch;
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--mute);
}

/* ---------- 更新记录速览 ---------- */
.page-home .log__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .log__item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 14px;
  align-items: center;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  background: rgba(13, 23, 48, 0.45);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

@media (min-width: 780px) {
  .page-home .log__item {
    grid-template-columns: 74px 118px minmax(0, 1fr) 96px;
    gap: 18px;
  }
}

.page-home .log__item:hover {
  border-color: var(--line);
  border-left-color: var(--cyan);
  transform: translateY(-2px);
}

.page-home .log__time {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--rock);
}

.page-home .log__text {
  grid-column: 1 / -1;
  margin: 0;
  line-height: 1.7;
  color: var(--body-text);
}

@media (min-width: 780px) {
  .page-home .log__text {
    grid-column: auto;
  }
}

.page-home .log__device {
  grid-column: 1 / -1;
  font-size: 0.8125rem;
  color: var(--mute);
}

@media (min-width: 780px) {
  .page-home .log__device {
    grid-column: auto;
    text-align: right;
  }
}

.page-home .log__more {
  display: inline-block;
  margin-top: 24px;
  font-size: 0.9375rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-home .log__more:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 版本线 ---------- */
.page-home .versions__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

@media (min-width: 1000px) {
  .page-home .versions__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  }
}

.page-home .versions__figure {
  margin: 0;
}

.page-home .versions__lead {
  max-width: 52ch;
  margin: 14px 0 0;
  line-height: 1.75;
  color: var(--body-text);
}

.page-home .versions__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 26px 0 28px;
  padding: 0;
  list-style: none;
  background: var(--line);
}

.page-home .vline {
  padding: 20px 20px 18px;
  background: var(--ink);
  transition: background var(--dur) var(--ease);
}

.page-home .vline:hover {
  background: var(--ink-2);
}

.page-home .vline__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-home .vline__name {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--silver);
}

.page-home .vline__num {
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--cyan);
  background: none;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .vline__num:hover {
  border-color: var(--cyan);
}

.page-home .vline__num.is-copied {
  border-color: var(--amber);
  color: var(--amber);
}

.page-home .vline__desc {
  margin: 12px 0 8px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--body-text);
}

.page-home .vline__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--mute);
}

/* ---------- 四步路径 ---------- */
.page-home .track {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 700px) {
  .page-home .track {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-home .track {
    grid-template-columns: repeat(4, 1fr);
  }
}

.page-home .track__step {
  padding: 26px 22px 22px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--line);
  background: rgba(13, 23, 48, 0.35);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .track__step:hover {
  border-top-color: var(--cyan);
  transform: translateY(-2px);
}

.page-home .track__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--star);
}

.page-home .track__title {
  margin: 0 0 10px;
  font-size: 1.125rem;
  color: var(--silver);
}

.page-home .track__text {
  margin: 0 0 16px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--body-text);
}

.page-home .track__link {
  font-size: 0.875rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-home .track__link:hover {
  border-bottom-color: var(--cyan);
}

.page-home .track__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

/* ---------- 典型场景 ---------- */
.page-home .scenes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
  margin-top: clamp(28px, 4vw, 44px);
}

@media (min-width: 760px) {
  .page-home .scenes__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-home .scenes__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-home .scene {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  background: rgba(13, 23, 48, 0.4);
  transition: transform var(--dur) var(--ease);
}

.page-home .scene:nth-child(1) {
  border-left-color: var(--moss);
}

.page-home .scene:nth-child(2) {
  border-left-color: var(--cyan);
}

.page-home .scene:nth-child(3) {
  border-left-color: var(--clay);
}

.page-home .scene:hover {
  transform: translateY(-2px);
}

.page-home .scene__title {
  margin: 16px 0 10px;
  font-size: 1.1875rem;
  line-height: 1.4;
  color: var(--silver);
}

.page-home .scene__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--body-text);
}

/* ---------- 地区与服务 ---------- */
.page-home .region__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-home .region__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  }
}

.page-home .region__text {
  max-width: 54ch;
  margin: 14px 0 26px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-home .region__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
}

.page-home .region__facts {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-home .region__facts > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 16px 20px;
  background: var(--ink);
}

.page-home .region__facts dt {
  font-size: 0.875rem;
  color: var(--mute);
}

.page-home .region__facts dd {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--silver);
}

.page-home .region__facts a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-home .region__facts a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 窄屏保护 ---------- */
@media (max-width: 560px) {
  .page-home .hero {
    min-height: 88vh;
  }

  .page-home .hero__index-item {
    padding-right: 14px;
  }

  .page-home .hero__index-item + .page-home .hero__index-item {
    padding-left: 14px;
  }

  .page-home .log__item {
    padding: 16px 16px;
  }

  .page-home .vline {
    padding: 18px 16px 16px;
  }
}