/* ================= page-home ================= */
.page-home {
  --home-tile-bg: rgba(20, 41, 63, .78);
  --home-grid-line: rgba(157, 176, 196, .085);
  --home-glow: rgba(47, 214, 232, .18);
  overflow-x: clip;
}

.page-home [id] {
  scroll-margin-top: 108px;
}

.page-home .home-h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.2;
  letter-spacing: .02em;
  color: var(--sand);
  margin: 10px 0 0;
}

.page-home .home-link {
  display: inline-block;
  padding: 10px 2px;
  color: var(--cyan);
  font-size: 14px;
  letter-spacing: .04em;
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 214, 232, .38);
  transition: border-color .2s ease, color .2s ease;
}

.page-home .home-link:hover {
  color: var(--sand);
  border-bottom-color: var(--sand);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  background: var(--ink);
  padding: clamp(24px, 4vw, 46px) 0 clamp(36px, 5vw, 68px);
  overflow: hidden;
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, var(--home-grid-line) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(90deg, var(--home-grid-line) 0 1px, transparent 1px 96px);
  pointer-events: none;
}

.page-home .home-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
}

/* --- 左侧垂直索引 --- */
.page-home .home-index {
  border-top: 1px solid var(--line-strong);
  padding-top: 14px;
}

.page-home .home-index__eyebrow {
  margin: 0;
  color: var(--amber);
}

.page-home .home-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

.page-home .home-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 0;
  color: var(--silver);
  font-size: 14px;
  letter-spacing: .04em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

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

.page-home .home-index__num {
  color: var(--steel);
  font-size: 11px;
  letter-spacing: .12em;
}

.page-home .home-index__meter {
  margin: 16px 0 0;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--steel);
}

/* --- 右侧拼贴面板 --- */
.page-home .home-hero__panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  padding: clamp(20px, 3.2vw, 46px);
  box-shadow: var(--shadow);
}

.page-home .home-hero__texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  z-index: 0;
  pointer-events: none;
}

.page-home .home-hero__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 82% 10%, var(--home-glow), transparent 58%),
    linear-gradient(162deg, rgba(10, 26, 47, .48) 0%, rgba(10, 26, 47, .95) 68%);
}

.page-home .home-hero__content,
.page-home .home-tiles {
  position: relative;
  z-index: 2;
}

.page-home .home-hero__title {
  margin: 0 0 20px;
}

.page-home .home-hero__title-main {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 8vw, 86px);
  line-height: 1.03;
  letter-spacing: .05em;
  color: var(--sand);
}

.page-home .home-hero__title-sub {
  display: block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: clamp(11px, 1.3vw, 13px);
  letter-spacing: .24em;
  color: var(--amber);
}

.page-home .home-hero__lede {
  max-width: 48ch;
  margin: 0 0 24px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--silver);
}

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

/* --- 首屏拼贴信息块 --- */
.page-home .home-tiles {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(26px, 3.6vw, 44px);
}

.page-home .home-tile {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 16px 18px;
  border: 1px solid var(--line-strong);
  background: var(--home-tile-bg);
  color: var(--sand);
  text-decoration: none;
  transition: border-color .22s ease, box-shadow .22s ease, background-color .22s ease;
}

.page-home .home-tile:hover {
  border-color: var(--cyan);
  background: rgba(20, 41, 63, .95);
  box-shadow: var(--shadow);
}

.page-home .home-tile__num {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-home .home-tile__title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .05em;
}

.page-home .home-tile__text {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 资料库总览 ---------- */
.page-home .home-overview__head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-home .home-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.2vw, 40px);
}

.page-home .home-overview__img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-home .stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 14px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .stat {
  background: var(--ink);
  padding: 15px 16px;
}

.page-home .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(23px, 2.8vw, 32px);
  letter-spacing: .02em;
  color: var(--amber);
  line-height: 1.1;
}

.page-home .stat__label {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--silver);
}

.page-home .home-overview__body p {
  margin: 0 0 1.15em;
  max-width: 42ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

.page-home .home-overview__body .btn {
  margin-top: 6px;
}

/* ---------- 版本对照 ---------- */
.page-home .home-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.2vw, 42px);
  align-items: center;
}

.page-home .home-compare__body p {
  max-width: 44ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

.page-home .home-compare__points {
  list-style: none;
  margin: 20px 0 26px;
  padding: 0;
}

.page-home .home-compare__points li {
  position: relative;
  padding: 9px 0 9px 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--sand);
  border-bottom: 1px solid var(--line);
}

.page-home .home-compare__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

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

.page-home .home-compare__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-home .home-compare__list {
  margin-top: clamp(26px, 3.4vw, 44px);
  border-top: 1px solid var(--line-strong);
}

.page-home .home-compare__list .data-list__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 5px;
  padding: 15px 10px 15px 12px;
  border-bottom: 1px solid var(--line);
  box-shadow: inset 0 0 0 0 var(--cyan);
  transition: box-shadow .22s ease;
}

.page-home .home-compare__list .data-list__row:hover {
  box-shadow: inset 2px 0 0 0 var(--cyan);
}

.page-home .home-compare__list .data-list__key {
  font-size: 14.5px;
  letter-spacing: .04em;
  color: var(--sand);
}

.page-home .home-compare__list .data-list__val {
  font-size: 14px;
  color: var(--amber);
}

.page-home .home-compare__list .data-list__meta {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--silver);
}

/* ---------- 移动端通道 ---------- */
.page-home .home-mobile {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.2vw, 44px);
  align-items: start;
}

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

.page-home .home-mobile__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-home .home-mobile__cap {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--silver);
}

.page-home .home-mobile__body p:not(.eyebrow) {
  max-width: 44ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

.page-home .home-mobile__steps {
  list-style: none;
  margin: 22px 0 26px;
  padding: 0;
  counter-reset: step;
}

.page-home .home-mobile__steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--sand);
}

.page-home .home-mobile__step {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--green);
}

/* ---------- 归档动态 ---------- */
.page-home .home-updates {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 46px);
}

.page-home .home-updates__lead p:not(.eyebrow) {
  max-width: 46ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

.page-home .home-updates__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
}

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

.page-home .home-updates__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 5px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .home-updates__stamp {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-home .home-updates__name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--sand);
}

.page-home .home-updates__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 订阅与联系（浅底） ---------- */
.page-home .section--paper {
  --sand: #0A1A2F;
  --silver: #40566E;
  --cyan: #0B6E7C;
  --amber: #B85A05;
  --line: rgba(10, 26, 47, .14);
  --line-strong: rgba(10, 26, 47, .3);
}

.page-home .home-close {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
}

.page-home .home-close__col p:not(.eyebrow) {
  max-width: 42ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

.page-home .home-close__col .btn {
  margin-top: 22px;
}

.page-home .home-close__contact {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-home .home-close__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .home-close__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-home .home-close__v {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--sand);
  word-break: break-word;
}

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

  .page-home .stat-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-close__row {
    grid-template-columns: minmax(0, 140px) minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-home .home-mobile__steps li {
    grid-template-columns: 44px minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(180px, 216px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3vw, 48px);
  }

  .page-home .home-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    margin-top: 18px;
  }

  .page-home .home-index__link {
    border-bottom: 1px solid var(--line);
    padding: 11px 0;
  }

  .page-home .home-index__meter {
    margin-top: 22px;
  }

  .page-home .home-overview {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-home .home-compare {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }

  .page-home .home-compare__list .data-list__row {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr) minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-home .home-mobile {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    align-items: center;
  }

  .page-home .home-updates {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-home .home-close {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-home .home-tiles {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-home .home-tile {
    grid-column: span 3;
  }

  .page-home .home-tile:nth-child(1) {
    grid-column: span 4;
  }

  .page-home .home-tile:nth-child(2) {
    grid-column: span 2;
  }

  .page-home .home-tile:nth-child(3) {
    grid-column: span 2;
  }

  .page-home .home-tile:nth-child(4) {
    grid-column: span 4;
  }

  .page-home .home-hero__panel {
    padding: clamp(28px, 3.4vw, 52px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-tile,
  .page-home .home-index__link,
  .page-home .home-link,
  .page-home .home-compare__list .data-list__row {
    transition: none;
  }
}