.page-home {
  --home-warm: rgba(200, 162, 75, 0.16);
  --home-line: rgba(200, 162, 75, 0.24);
  --home-line-soft: rgba(242, 231, 211, 0.12);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

.page-home img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-home h2,
.page-home h3,
.page-home p,
.page-home ul,
.page-home ol,
.page-home dl,
.page-home figure {
  margin: 0;
}

.page-home h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.6vw, 44px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--frost);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 6vw, 76px) 0 clamp(42px, 6vw, 88px);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 84% 16%, var(--home-warm), transparent 56%),
    radial-gradient(circle at 4% 92%, rgba(47, 93, 98, 0.22), transparent 60%),
    linear-gradient(180deg, #0B0A09 0%, #17120F 100%);
}

.page-home .hero__lantern {
  display: none;
  position: absolute;
  top: 14%;
  right: 5%;
  width: 96px;
  height: auto;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.2;
  opacity: 0.38;
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

.page-home .hero__crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--sand);
}

.page-home .hero__crumb a {
  color: var(--sand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

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

.page-home .hero__crumb span[aria-hidden="true"] {
  color: var(--gold);
}

.page-home .hero__plate {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: clamp(20px, 3.2vw, 32px);
}

.page-home .hero__plate-glyph {
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 54px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(200, 162, 75, 0.62);
}

.page-home .hero__plate-tag {
  font-size: 12px;
  letter-spacing: 0.26em;
  color: var(--sand);
  border-left: 1px solid var(--home-line);
  padding-left: 14px;
}

.page-home .hero h1 {
  margin-top: clamp(16px, 2.6vw, 24px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 8vw, 72px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--frost);
}

.page-home .hero h1 em {
  font-style: normal;
  color: var(--gold-bright);
}

.page-home .hero__lead {
  margin-top: clamp(16px, 2.6vw, 22px);
  max-width: 46ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.9;
  color: var(--paper);
}

.page-home .search {
  margin-top: clamp(24px, 3.6vw, 34px);
  padding: clamp(18px, 2.8vw, 26px);
  background: linear-gradient(152deg, rgba(31, 42, 37, 0.92), rgba(23, 18, 15, 0.94));
  border: 1px solid var(--home-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-home .search__head {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold-bright);
}

.page-home .search__hint {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--sand);
}

.page-home .search__list {
  list-style: none;
  padding: 0;
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.page-home .search__list a {
  display: inline-block;
  padding: 7px 13px;
  font-size: 13px;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--home-line-soft);
  border-radius: 2px;
  background: rgba(11, 10, 9, 0.45);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-home .search__list a::after {
  content: " →";
  color: var(--gold);
}

.page-home .search__list a:hover,
.page-home .search__list a:focus-visible {
  color: var(--gold-bright);
  border-color: var(--gold);
  background: rgba(200, 162, 75, 0.1);
}

.page-home .hero__actions {
  margin-top: clamp(22px, 3.4vw, 32px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero__actions .btn {
  letter-spacing: 0.06em;
}

.page-home .hero__figure {
  position: relative;
  clip-path: polygon(0 5%, 100% 0, 100% 100%, 0 95%);
  border: 1px solid var(--home-line-soft);
}

.page-home .hero__figure img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(0.88) contrast(1.06) brightness(0.92);
}

/* ---------- 数据条 ---------- */
.page-home .metrics {
  border-top: 1px solid var(--home-line-soft);
  border-bottom: 1px solid var(--home-line-soft);
  background: rgba(23, 18, 15, 0.55);
}

.page-home .metrics__list {
  list-style: none;
  padding: clamp(20px, 3vw, 28px) 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px clamp(14px, 3vw, 30px);
}

.page-home .metrics__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 30px);
  line-height: 1.1;
  color: var(--gold-bright);
}

.page-home .metrics__label {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--sand);
}

/* ---------- 章节头 ---------- */
.page-home .sec-head {
  padding-top: clamp(44px, 7vw, 86px);
  padding-bottom: clamp(10px, 1.8vw, 16px);
}

.page-home .sec-head h2 {
  margin-top: 14px;
  max-width: 16em;
}

.page-home .sec-head__text {
  margin-top: 14px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--sand);
}

.page-home .rail__hint {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(200, 162, 75, 0.8);
}

/* ---------- 横向卷轴 ---------- */
.page-home .rail {
  display: flex;
  gap: clamp(14px, 2vw, 22px);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--gutter);
  -webkit-overflow-scrolling: touch;
  padding: clamp(20px, 3vw, 30px) var(--gutter) clamp(26px, 3.6vw, 40px);
}

.page-home .rail::-webkit-scrollbar {
  height: 3px;
}

.page-home .rail::-webkit-scrollbar-thumb {
  background: var(--home-line);
}

.page-home .rail__item {
  flex: 0 0 min(80vw, 344px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 24px);
  background: linear-gradient(165deg, rgba(31, 42, 37, 0.95), rgba(23, 18, 15, 0.98));
  border: 1px solid var(--home-line-soft);
  border-top: 2px solid var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease);
}

.page-home .rail__item:hover {
  transform: translateY(-4px);
  border-color: var(--home-line);
}

.page-home .rail__media {
  margin-bottom: 6px;
}

.page-home .rail__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.9) brightness(0.9);
}

.page-home .rail__no {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 38px);
  line-height: 1;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-home .rail__flag {
  align-self: flex-start;
  padding: 2px 9px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cinnabar);
  border: 1px solid rgba(182, 64, 46, 0.7);
}

.page-home .rail__title {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 700;
  color: var(--frost);
}

.page-home .rail__text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper);
}

.page-home .rail__who {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--sand);
  border-top: 1px solid var(--home-line-soft);
  padding-top: 10px;
}

.page-home .rail__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 13.5px;
  letter-spacing: 0.06em;
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--home-line);
  padding-bottom: 3px;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-home .rail__link::after {
  content: " ↗";
}

.page-home .rail__link:hover,
.page-home .rail__link:focus-visible {
  color: var(--frost);
  border-bottom-color: var(--gold-bright);
}

/* ---------- PC 端 ---------- */
.page-home .sec-pc {
  padding: clamp(46px, 7vw, 92px) 0;
  border-top: 1px solid var(--home-line-soft);
  background:
    radial-gradient(circle at 96% 0%, rgba(47, 93, 98, 0.18), transparent 52%),
    var(--ink);
}

.page-home .sec-pc__inner {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-home .sec-pc__index {
  display: none;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--sand);
}

.page-home .sec-pc__body h2 {
  margin-top: 14px;
  max-width: 15em;
}

.page-home .sec-pc__body .prose {
  margin-top: 16px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--paper);
}

.page-home .sec-pc__body .prose p + p {
  margin-top: 12px;
}

.page-home .pc-list {
  list-style: none;
  padding: 0;
  margin-top: clamp(20px, 3vw, 26px);
  display: grid;
  gap: 12px;
}

.page-home .pc-list li {
  position: relative;
  padding-left: 18px;
}

.page-home .pc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 1px;
  background: var(--gold);
}

.page-home .pc-list strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-bright);
  letter-spacing: 0.04em;
}

.page-home .pc-list span {
  display: block;
  margin-top: 3px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--sand);
}

.page-home .sec-pc__body .btn {
  margin-top: clamp(20px, 3vw, 28px);
}

.page-home .sec-pc__aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-home .sec-pc__fig {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  border: 1px solid var(--home-line-soft);
  overflow: hidden;
}

.page-home .sec-pc__fig img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.92);
}

.page-home .sec-pc__aside .note {
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--sand);
}

/* ---------- 下载 ---------- */
.page-home .sec-dl {
  position: relative;
  padding: clamp(44px, 6.5vw, 84px) 0;
  background: var(--paper);
  color: var(--ink);
}

.page-home .sec-dl::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(200px, 42%);
  height: 4px;
  background: var(--cinnabar);
}

.page-home .sec-dl__inner {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-home .sec-dl__eyebrow {
  color: #7A5A20;
}

.page-home .sec-dl h2 {
  margin-top: 14px;
  color: var(--ink);
  max-width: 14em;
}

.page-home .sec-dl__lead {
  margin-top: 14px;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: #3A2E22;
}

.page-home .versions {
  margin-top: clamp(20px, 3vw, 28px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 14px;
}

.page-home .version {
  padding-top: 12px;
  border-top: 1px solid rgba(11, 10, 9, 0.25);
}

.page-home .version__key {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: #6B5A45;
}

.page-home .version__val {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  color: var(--ink);
}

.page-home .sec-dl__text {
  margin-top: clamp(18px, 2.6vw, 24px);
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.85;
  color: #3A2E22;
}

.page-home .sec-dl__body .btn {
  margin-top: clamp(20px, 3vw, 28px);
}

.page-home .sec-dl__fig {
  align-self: start;
  border: 1px solid rgba(11, 10, 9, 0.2);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
  overflow: hidden;
}

.page-home .sec-dl__fig img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 服务与联系 ---------- */
.page-home .sec-service {
  padding: clamp(46px, 7vw, 92px) 0 clamp(54px, 8vw, 100px);
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
}

.page-home .sec-service h2 {
  margin-top: 14px;
  max-width: 15em;
}

.page-home .sec-service__lead {
  margin-top: 14px;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--sand);
}

.page-home .steps {
  list-style: none;
  padding: 0;
  margin-top: clamp(24px, 3.6vw, 34px);
  display: grid;
  gap: 18px;
}

.page-home .steps li {
  padding-top: 16px;
  border-top: 1px solid var(--home-line);
}

.page-home .steps li h3 {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 700;
  color: var(--frost);
}

.page-home .steps li h3::before {
  content: "";
  display: block;
  width: 26px;
  height: 1px;
  margin-bottom: 10px;
  background: var(--gold);
}

.page-home .steps li p {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--sand);
}

.page-home .service-foot {
  margin-top: clamp(26px, 4vw, 38px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--home-line-soft);
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-home .service-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}

.page-home .service-contact dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--sand);
}

.page-home .service-contact dd {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--frost);
  word-break: break-word;
}

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

.page-home .sec-service__foot {
  margin-top: clamp(22px, 3vw, 30px);
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--sand);
  max-width: 52ch;
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-home .hero__lantern {
    display: block;
  }

  .page-home .hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }

  .page-home .hero__figure {
    align-self: center;
  }

  .page-home .metrics__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .rail {
    padding-inline: max(var(--gutter), calc((100vw - var(--shell)) / 2));
    scroll-padding-inline: max(var(--gutter), calc((100vw - var(--shell)) / 2));
  }

  .page-home .rail__item {
    flex-basis: min(30vw, 330px);
  }

  .page-home .sec-pc__inner {
    grid-template-columns: 74px minmax(0, 1fr) minmax(0, 340px);
    align-items: start;
  }

  .page-home .sec-pc__index {
    display: block;
    position: sticky;
    top: 128px;
    writing-mode: vertical-rl;
    padding-top: 6px;
    border-left: 1px solid var(--home-line);
    padding-left: 12px;
  }

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

  .page-home .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 2.4vw, 28px);
  }

  .page-home .service-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 1180px) {
  .page-home .hero h1 {
    max-width: 13em;
  }

  .page-home .rail__item {
    flex-basis: 342px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .rail {
    scroll-behavior: auto;
  }

  .page-home .rail__item,
  .page-home .rail__link,
  .page-home .search__list a {
    transition: none;
  }

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