.page-home {
  --home-panel: rgba(18, 38, 61, .82);
  --home-line: rgba(200, 205, 212, .18);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 44px 0 56px;
  background: var(--ink);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: linear-gradient(124deg, var(--ink) 0 62%, var(--ink-2) 62% 100%);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(78, 127, 184, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78, 127, 184, .16) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(130% 85% at 18% 0%, #000 0%, rgba(0, 0, 0, .35) 55%, transparent 78%);
  mask-image: radial-gradient(130% 85% at 18% 0%, #000 0%, rgba(0, 0, 0, .35) 55%, transparent 78%);
}

.page-home .hero__grid {
  display: grid;
  gap: 36px;
}

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

.page-home .hero__kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-home .hero__kicker::before {
  content: "";
  display: block;
  width: 22px;
  height: 1px;
  background: var(--cyan);
}

.page-home .hero h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 6.6vw, 54px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 16em;
}

.page-home .hero__lede {
  margin: 0 0 26px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

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

/* 版本牌 */
.page-home .plate {
  margin-top: 34px;
  padding: 20px;
  background: rgba(11, 26, 43, .74);
  border: 1px solid var(--home-line);
  border-top: 1px solid rgba(53, 224, 208, .5);
}

.page-home .plate__ver {
  display: block;
  margin-bottom: 16px;
  font-size: clamp(56px, 14vw, 98px);
  line-height: .88;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--cyan);
}

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

.page-home .plate__cell {
  display: block;
  padding: 12px 12px 14px;
  background: rgba(18, 38, 61, .9);
}

.page-home .plate__k {
  display: block;
  margin-bottom: 6px;
  font-style: normal;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--silver);
}

.page-home .plate__v {
  display: block;
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-home .plate__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--silver);
}

/* 首屏视觉 */
.page-home .hero__visual {
  margin: 0;
  padding: 10px;
  background: rgba(18, 38, 61, .62);
  border: 1px solid rgba(200, 205, 212, .22);
  box-shadow: 22px 22px 0 -1px rgba(78, 127, 184, .16);
}

.page-home .hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .hero__cap {
  padding: 10px 4px 2px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--silver);
}

/* ---------- 通用章节 ---------- */
.page-home .section {
  padding: 56px 0;
}

.page-home .section__head {
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
  max-width: 64ch;
}

.page-home .section__index {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-home .section__index::before {
  content: "";
  display: block;
  width: 18px;
  height: 1px;
  background: var(--cyan);
}

.page-home .section__title {
  margin: 0;
  font-size: clamp(22px, 4.8vw, 36px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .section__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 01 服务卡片 ---------- */
.page-home .home-svc {
  background: var(--ink);
}

.page-home .home-svc__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .home-svc__card {
  position: relative;
  padding: 26px 22px 22px;
  background: var(--ink-2);
  border: 1px solid var(--home-line);
  transition: transform .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-home .home-svc__card:hover,
.page-home .home-svc__card:focus-within {
  transform: translateY(-2px);
  border-color: rgba(53, 224, 208, .55);
  background: var(--hover);
}

.page-home .home-svc__code {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 8px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ink);
  background: var(--cyan);
  border-radius: 2px;
}

.page-home .home-svc__card .card__title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .home-svc__card .card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-home .home-svc__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .18s var(--ease);
}

.page-home .home-svc__link::after {
  content: "→";
  transition: transform .18s var(--ease);
}

.page-home .home-svc__link:hover,
.page-home .home-svc__link:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-home .home-svc__link:hover::after,
.page-home .home-svc__link:focus-visible::after {
  transform: translateX(3px);
}

/* ---------- 02 更新节奏 ---------- */
.page-home .home-rhythm {
  background: var(--void);
}

.page-home .home-rhythm__band {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 260px;
  background: var(--void);
  border: 1px solid var(--home-line);
}

.page-home .home-rhythm__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .4;
}

.page-home .home-rhythm__band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(104deg, rgba(5, 10, 18, .95) 0%, rgba(5, 10, 18, .76) 54%, rgba(30, 74, 99, .34) 100%);
}

.page-home .home-rhythm__inner {
  position: relative;
  z-index: 1;
  padding: 32px 22px;
  max-width: 46em;
}

.page-home .home-rhythm__inner .section__index {
  margin-bottom: 12px;
}

.page-home .home-rhythm__text {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-home .home-rhythm__facts {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--home-line);
  border: 1px solid var(--home-line);
}

.page-home .home-rhythm__facts li {
  padding: 22px 20px;
  background: var(--ink);
}

.page-home .home-rhythm__k {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-home .home-rhythm__facts p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 03 下载与索引 ---------- */
.page-home .home-path {
  background: var(--ink-2);
}

.page-home .home-path__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-home .home-path__figure {
  margin: 0;
  padding: 10px;
  background: var(--ink);
  border: 1px solid var(--home-line);
}

.page-home .home-path__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .home-path__figure figcaption {
  padding: 10px 2px 2px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--silver);
}

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

.page-home .home-path__steps li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--home-line);
}

.page-home .home-path__n {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-home .home-path__steps h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-home .home-path__steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.page-home .home-path__files {
  margin-top: 22px;
  padding: 18px;
  background: rgba(255, 122, 41, .07);
  border-left: 2px solid var(--orange);
}

.page-home .home-path__files p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 04 稳定版与成本 ---------- */
.page-home .home-plan {
  background: var(--ink);
}

.page-home .home-plan__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-home .home-plan__body .section__index {
  margin-bottom: 12px;
}

.page-home .home-plan__text {
  margin: 14px 0 0;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-home .home-plan__tiers {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--home-line);
  border: 1px solid var(--home-line);
}

.page-home .home-plan__tiers li {
  padding: 18px 16px;
  background: var(--ink-2);
}

.page-home .home-plan__tiers span {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-home .home-plan__tiers p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-home .home-plan__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-home .home-plan__figure {
  margin: 0;
  padding: 10px;
  background: var(--ink-2);
  border: 1px solid var(--home-line);
}

.page-home .home-plan__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-home .home-plan__costs {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--home-line);
  display: grid;
  gap: 10px;
}

.page-home .home-plan__costs-k {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-home .home-plan__costs-t {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 05 常见问题 ---------- */
.page-home .home-faq {
  background: var(--ink-2);
}

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

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

.page-home .home-faq__item summary {
  position: relative;
  padding: 17px 44px 17px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  transition: color .18s var(--ease);
}

.page-home .home-faq__item summary::-webkit-details-marker {
  display: none;
}

.page-home .home-faq__item summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 400;
  color: var(--cyan);
  transition: transform .2s var(--ease);
}

.page-home .home-faq__item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.page-home .home-faq__item summary:hover,
.page-home .home-faq__item summary:focus-visible {
  color: var(--cyan);
}

.page-home .home-faq__item p {
  margin: 0 0 20px;
  padding-right: 30px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--silver);
}

.page-home .home-faq__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 480px) {
  .page-home .plate__row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 640px) {
  .page-home .home-svc__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-plan__tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-home .home-rhythm__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .home-rhythm__inner {
    padding: 42px 36px;
  }
}

@media (min-width: 900px) {
  .page-home .home-path__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 42px;
    align-items: start;
  }

  .page-home .home-plan__grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, .78fr);
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-home .hero {
    padding: 64px 0 84px;
  }

  .page-home .hero::before {
    background: linear-gradient(122deg, var(--ink) 0 58%, var(--ink-2) 58% 100%);
  }

  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
    gap: 64px;
  }

  .page-home .hero__visual {
    transform: translateY(-10px) rotate(-1.4deg);
  }

  .page-home .section {
    padding: 86px 0;
  }

  .page-home .section__head {
    margin-bottom: 36px;
  }

  .page-home .home-svc__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-home .home-svc__card {
    padding: 30px 26px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-svc__card,
  .page-home .home-svc__link,
  .page-home .home-svc__link::after,
  .page-home .home-faq__item summary,
  .page-home .home-faq__item summary::after {
    transition: none;
  }

  .page-home .home-svc__card:hover,
  .page-home .home-svc__card:focus-within {
    transform: none;
  }

  .page-home .hero__visual {
    transform: none;
  }
}