/* ============ 首页 page-home ============ */
.page-home {
  --hp-gap: 16px;
  --hp-rail: 180px;
  background: var(--ink-800);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-home .container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gut);
  padding-right: var(--gut);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  padding: clamp(96px, 13vh, 132px) 0 56px;
  background:
    radial-gradient(1100px 480px at 82% -8%, rgba(59, 240, 196, 0.11), transparent 62%),
    radial-gradient(820px 400px at 4% 4%, rgba(201, 162, 39, 0.08), transparent 60%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 62%, var(--ink-800) 100%);
}

.page-home .home-hero__top {
  margin-bottom: 40px;
}

.page-home .home-hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(31px, 5.2vw, 58px);
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--paper);
  margin: 14px 0 20px;
  max-width: 19ch;
}

.page-home .home-hero__lede {
  font-size: 17px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 62ch;
  margin: 0;
}

.page-home .home-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--hp-gap);
}

/* 主视觉 */
.page-home .home-hero__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-900);
  aspect-ratio: 16 / 10;
}

.page-home .home-hero__visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.05) contrast(1.04);
}

.page-home .home-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 17, 14, 0.12) 0%, rgba(4, 17, 14, 0.72) 100%);
  pointer-events: none;
}

.page-home .home-hero__visual .exhibit-label {
  position: absolute;
  left: 18px;
  bottom: 16px;
  z-index: 2;
}

/* 竖长数据块 */
.page-home .home-hero__data {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 42, 35, 0.92) 0%, rgba(7, 26, 22, 0.96) 100%);
}

.page-home .home-hero__stat {
  border-left: 2px solid var(--cyan);
  padding-left: 16px;
}

.page-home .home-hero__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(56px, 9vw, 84px);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.03em;
  color: var(--cyan);
  margin: 0;
}

.page-home .home-hero__unit {
  display: inline-block;
  margin-top: 6px;
  font-size: 14px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold-lt);
}

.page-home .home-hero__statnote {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .home-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
}

.page-home .home-hero__facts li {
  font-size: 14px;
  line-height: 1.68;
  color: var(--mist);
}

.page-home .home-hero__facts span {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}

.page-home .home-hero__heat {
  margin: 0;
  flex: 1 1 auto;
  min-height: 110px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.page-home .home-hero__heat img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.86;
}

/* 登录入口块 */
.page-home .home-hero__login {
  padding: 24px;
  border: 1px solid var(--line-cyan);
  background: linear-gradient(158deg, rgba(59, 240, 196, 0.10) 0%, rgba(7, 26, 22, 0.72) 68%);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-home .home-hero__logintitle {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(21px, 2.4vw, 26px);
  line-height: 1.3;
  color: var(--paper);
  margin: 0;
}

.page-home .home-hero__logintext {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 34ch;
}

.page-home .home-hero__loginbtn {
  margin-top: 4px;
  text-decoration: none;
}

/* ---------- 主体骨架 ---------- */
.page-home .home-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-top: 8px;
  padding-bottom: 96px;
}

.page-home .home-rail {
  display: none;
}

.page-home .home-flow {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-home .home-sec {
  position: relative;
  padding: 56px 0 64px;
  border-top: 1px solid var(--line-soft);
}

.page-home .home-sec:first-child {
  border-top-color: var(--line-cyan);
}

.page-home .home-sec__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.page-home .home-sec__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 300;
  font-size: 52px;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--gold);
  opacity: 0.58;
  display: block;
}

.page-home .home-sec__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3.3vw, 36px);
  line-height: 1.24;
  letter-spacing: -0.005em;
  color: var(--paper);
  margin: 8px 0 0;
}

.page-home .home-sec__lede {
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 68ch;
  margin: 0 0 32px;
}

.page-home .home-sec__more {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 32px 0 0;
}

.page-home .home-sec__more a {
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  padding-bottom: 2px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .home-sec__more a:hover {
  color: var(--gold-lt);
  border-bottom-color: var(--gold-lt);
}

/* ---------- 01 资料范围卡片 ---------- */
.page-home .home-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--hp-gap);
}

.page-home .home-card {
  padding: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 42, 35, 0.7) 0%, rgba(7, 26, 22, 0.86) 100%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

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

.page-home .home-card h3 {
  font-size: 19px;
  line-height: 1.42;
  font-weight: 600;
  color: var(--paper);
  margin: 0;
  letter-spacing: -0.005em;
}

.page-home .home-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-home .home-card .tag {
  align-self: flex-start;
  margin: 0;
}

/* ---------- 02 更新节奏 ---------- */
.page-home .home-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-home .home-timeline__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 22px 0 22px 22px;
  border-left: 1px solid var(--line);
  position: relative;
}

.page-home .home-timeline__item::before {
  content: "";
  position: absolute;
  left: -3px;
  top: 28px;
  width: 5px;
  height: 5px;
  background: var(--cyan);
}

.page-home .home-timeline__time {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold-lt);
  text-transform: uppercase;
}

.page-home .home-timeline__body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--paper);
  margin: 0 0 6px;
  line-height: 1.4;
}

.page-home .home-timeline__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 03 数据规模 ---------- */
.page-home .home-numbers {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--hp-gap);
}

.page-home .home-numbers__main {
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(13, 42, 35, 0.85) 0%, rgba(7, 26, 22, 0.9) 100%);
  padding: 24px;
}

.page-home .home-numbers__main .tabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-home .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 20px;
}

.page-home .tabs__tab {
  appearance: none;
  background: none;
  border: 0;
  padding: 10px 4px 12px;
  margin-right: 20px;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--mist);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .tabs__tab:hover {
  color: var(--paper);
}

.page-home .tabs__tab[aria-selected="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-home .tabs__panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-home .home-metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-home .home-metric__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 400;
  font-size: clamp(46px, 8vw, 82px);
  line-height: 0.94;
  letter-spacing: -0.04em;
  color: var(--paper);
}

.page-home .home-metric__value--cyan {
  color: var(--cyan);
}

.page-home .home-metric__value--gold {
  color: var(--gold);
}

.page-home .home-metric__value em {
  font-style: normal;
  font-size: 0.45em;
  letter-spacing: 0;
  margin-left: 4px;
  color: var(--gold-lt);
}

.page-home .home-metric__label {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .home-numbers__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-900);
  aspect-ratio: 1 / 1;
  max-height: 420px;
}

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

/* ---------- 04 开始使用 ---------- */
.page-home .home-steps-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--hp-gap);
}

.page-home .home-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  counter-reset: none;
}

.page-home .home-steps__item {
  padding: 22px 24px;
  border: 1px solid var(--line);
  background: rgba(13, 42, 35, 0.5);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  align-items: baseline;
}

.page-home .home-steps__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
  grid-row: 1 / 3;
}

.page-home .home-steps__item h3 {
  grid-column: 2;
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
}

.page-home .home-steps__item p {
  grid-column: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--mist);
  max-width: 56ch;
}

.page-home .home-steps__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-900);
  aspect-ratio: 14 / 9;
}

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

/* ---------- 05 专栏速览 ---------- */
.page-home .home-digest {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--hp-gap);
}

.page-home .home-digest__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-top: 1px solid var(--line-soft);
}

.page-home .home-digest__item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-home .home-digest__item .tag {
  align-self: flex-start;
  margin: 0;
}

.page-home .home-digest__item h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.45;
  font-weight: 600;
  color: var(--paper);
}

.page-home .home-digest__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--mist);
  max-width: 60ch;
}

.page-home .home-digest__side {
  padding: 24px;
  border: 1px solid var(--line-cyan);
  background: linear-gradient(165deg, rgba(28, 142, 119, 0.14) 0%, rgba(7, 26, 22, 0.8) 70%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-self: start;
}

.page-home .home-digest__sidetitle {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--gold-lt);
}

.page-home .home-digest__updates {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-home .home-digest__updates li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.76;
  color: var(--mist);
}

.page-home .home-digest__updates li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--coral);
}

.page-home .home-digest__side .btn {
  align-self: flex-start;
  text-decoration: none;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-home .home-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-card--wide {
    grid-column: span 2;
  }

  .page-home .home-timeline__item {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 24px;
    padding-left: 24px;
  }
}

@media (min-width: 960px) {
  .page-home .home-hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-rows: auto auto;
  }

  .page-home .home-hero__visual {
    grid-column: 1 / 8;
    grid-row: 1 / 3;
    aspect-ratio: auto;
    min-height: 460px;
  }

  .page-home .home-hero__data {
    grid-column: 8 / 13;
    grid-row: 1 / 2;
  }

  .page-home .home-hero__login {
    grid-column: 8 / 13;
    grid-row: 2 / 3;
  }

  .page-home .home-numbers {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .home-numbers__media {
    aspect-ratio: auto;
    max-height: none;
    min-height: 320px;
  }

  .page-home .home-steps-wrap {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-home .home-digest {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }
}

@media (min-width: 1024px) {
  .page-home .home-body {
    grid-template-columns: var(--hp-rail) minmax(0, 1fr);
    gap: 56px;
  }

  .page-home .home-rail {
    display: block;
    align-self: start;
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-home .home-sec__head {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-home .home-sec__num {
    font-size: 84px;
    text-align: right;
  }

  .page-home .home-cards {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .home-card {
    grid-column: span 5;
  }

  .page-home .home-card--wide {
    grid-column: span 7;
  }

  .page-home .home-card:nth-child(1) { grid-column: 1 / 8; }
  .page-home .home-card:nth-child(2) { grid-column: 8 / 13; }
  .page-home .home-card:nth-child(3) { grid-column: 1 / 6; }
  .page-home .home-card:nth-child(4) { grid-column: 6 / 13; }
}

@media (min-width: 1200px) {
  .page-home .home-sec__num {
    font-size: 96px;
  }
}

/* 侧边索引 */
.page-home .home-rail__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mist);
  margin: 0 0 14px;
}

.page-home .home-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--line);
}

.page-home .home-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0 9px 16px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .home-rail__link:hover {
  color: var(--gold-lt);
}

.page-home .home-rail__link.is-active,
.page-home .home-rail__link[aria-current="true"],
.page-home .home-rail__link[aria-current="page"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-home .home-rail__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-home .home-rail__link.is-active .home-rail__idx,
.page-home .home-rail__link[aria-current="true"] .home-rail__idx {
  color: var(--gold-lt);
}

/* 减弱动效 */
@media (prefers-reduced-motion: reduce) {
  .page-home .home-card,
  .page-home .home-rail__link,
  .page-home .tabs__tab,
  .page-home .home-sec__more a {
    transition: none;
  }

  .page-home .home-card:hover {
    transform: none;
  }
}

/* 窄屏兜底 */
@media (max-width: 480px) {
  .page-home .home-hero__num {
    font-size: 52px;
  }

  .page-home .home-sec__num {
    font-size: 42px;
  }

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

  .page-home .home-steps__num {
    grid-row: auto;
    margin-bottom: 4px;
  }

  .page-home .home-steps__item h3,
  .page-home .home-steps__item p {
    grid-column: 1;
  }
}
</main>