.page-home {
  --home-ratio-wide: 16 / 10;
  --home-ratio-4x3: 4 / 3;
  --home-ratio-2x1: 2 / 1;
  --home-ratio-10x7: 10 / 7;
  --home-card: linear-gradient(165deg, rgba(16, 26, 56, 0.9), rgba(7, 11, 26, 0.72));
  --home-card-line: 1px solid var(--hair);
}

/* ---------- 页面上下文条 ---------- */
.page-home .page-ctx {
  background: var(--c-night-deep);
  border-bottom: 1px solid var(--hair);
}

.page-home .page-ctx__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding-block: 10px;
}

.page-home .page-ctx__path {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-mist);
}

.page-home .page-ctx__hint {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}

/* ---------- 首屏拼贴 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(28px, 5vw, 60px) clamp(40px, 7vw, 84px);
  background:
    radial-gradient(120% 90% at 84% 2%, rgba(108, 92, 224, 0.3), rgba(7, 11, 26, 0) 60%),
    radial-gradient(90% 70% at 6% 94%, rgba(58, 114, 248, 0.2), rgba(7, 11, 26, 0) 62%),
    linear-gradient(180deg, var(--c-night-deep) 0%, var(--c-night) 100%);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(127, 211, 224, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(127, 211, 224, 0.07) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.22) 72%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.22) 72%, transparent 100%);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.32;
  background-image: radial-gradient(rgba(245, 248, 255, 0.55) 0.8px, transparent 0.8px);
  background-size: 54px 54px;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 76%);
  mask-image: linear-gradient(180deg, #000, transparent 76%);
}

.page-home .hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

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

.page-home .hero__lead {
  padding: clamp(20px, 3.4vw, 36px);
  border-radius: var(--r-lg);
  border: 1px solid var(--hair);
  background: linear-gradient(158deg, rgba(16, 26, 56, 0.94) 0%, rgba(7, 11, 26, 0.82) 100%);
  box-shadow: var(--shadow-float);
}

.page-home .hero__lead h1 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.95rem, 5.2vw, 3.3rem);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .hero__lead .lede {
  margin: 0;
  color: var(--ink-dim);
  font-size: clamp(0.98rem, 1.6vw, 1.06rem);
  line-height: 1.85;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-home .hero__readout {
  padding: 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--hair-strong);
  background: linear-gradient(200deg, rgba(58, 114, 248, 0.18), rgba(7, 11, 26, 0.72) 64%);
}

.page-home .hero__readout .eyebrow {
  margin: 0 0 10px;
}

.page-home .hero__readout-coord {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.6vw, 1.4rem);
  letter-spacing: 0.02em;
  color: var(--c-mist);
}

.page-home .hero__readout-alt {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-slate);
}

.page-home .hero__facts {
  margin: 18px 0 0;
  display: grid;
  gap: 0;
}

.page-home .hero__fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-top: 1px solid var(--hair);
}

.page-home .hero__fact dt {
  color: var(--ink-mute);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-home .hero__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-flag-white);
}

.page-home .hero__quick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-home .hero__quick-link {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--hair);
  background: rgba(16, 26, 56, 0.62);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-home .hero__quick-link .eyebrow {
  margin: 0;
}

.page-home .hero__quick-link strong {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
}

.page-home .hero__quick-link:hover,
.page-home .hero__quick-link:focus-visible {
  border-color: var(--c-flag-blue);
  background: rgba(58, 114, 248, 0.16);
  transform: translateY(-2px);
  outline: none;
}

/* ---------- 通用章节 ---------- */
.page-home .sect {
  position: relative;
  padding-block: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--hair);
}

.page-home .sect--deep {
  background: var(--c-night);
}

.page-home .sect--ridge {
  background: linear-gradient(180deg, var(--c-ridge) 0%, var(--c-night) 100%);
}

.page-home .sect--cta {
  background:
    radial-gradient(90% 120% at 88% 0%, rgba(108, 92, 224, 0.22), rgba(7, 11, 26, 0) 62%),
    linear-gradient(140deg, rgba(58, 114, 248, 0.18), rgba(7, 11, 26, 0.94));
}

.page-home .sect__head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3.2vw, 38px);
}

.page-home .sect__head h2 {
  margin: 6px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .sect__lede {
  margin: 0;
  color: var(--ink-dim);
  font-size: clamp(0.96rem, 1.5vw, 1.02rem);
  line-height: 1.85;
}

/* ---------- 图片容器 ---------- */
.page-home .fig {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-home .fig--wide {
  --fig-ratio: 16 / 10;
}

.page-home .fig--4x3 {
  --fig-ratio: 4 / 3;
}

.page-home .fig--2x1 {
  --fig-ratio: 2 / 1;
}

.page-home .fig--10x7 {
  --fig-ratio: 10 / 7;
}

.page-home .fig__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid var(--hair);
  background: linear-gradient(180deg, var(--c-ridge), var(--c-night-deep));
}

.page-home .fig__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: var(--fig-ratio, 16 / 10);
  object-fit: cover;
  border-radius: inherit;
}

.page-home .fig figcaption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
  padding-left: 4px;
}

/* ---------- 坐标与维护状态 ---------- */
.page-home .status-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .status-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 30px);
  border-radius: var(--r-md);
  border: var(--home-card-line);
  background: var(--home-card);
}

.page-home .status-card--a {
  border-color: var(--hair-strong);
  background: linear-gradient(165deg, rgba(58, 114, 248, 0.22), rgba(7, 11, 26, 0.74));
}

.page-home .status-card .eyebrow {
  margin: 0;
}

.page-home .status-card__num {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4.6vw, 2.9rem);
  line-height: 1;
  color: var(--c-flag-white);
}

.page-home .status-card__num span {
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-mute);
}

.page-home .status-card p:last-child {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ---------- 按设备选路 ---------- */
.page-home .path-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .path-card {
  --accent: var(--c-flag-blue);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 30px);
  border-radius: var(--r-lg);
  border: 1px solid var(--hair);
  border-top: 3px solid var(--accent);
  background: rgba(7, 11, 26, 0.55);
}

.page-home .path-card--phone {
  --accent: var(--c-flag-blue);
}

.page-home .path-card--pad {
  --accent: var(--c-mist);
}

.page-home .path-card--desk {
  --accent: var(--c-flag-yellow);
}

.page-home .path-card .eyebrow {
  margin: 0;
  color: var(--accent);
}

.page-home .path-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.12rem, 2vw, 1.3rem);
  line-height: 1.5;
  color: var(--ink);
}

.page-home .path-card p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.82;
}

.page-home .path-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 安装前核对项 ---------- */
.page-home .check__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-home .check__body h2 {
  margin: 6px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.32;
  color: var(--ink);
}

.page-home .check__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--hair);
}

.page-home .check__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--hair);
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.page-home .check__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

.page-home .check__tail {
  margin: 22px 0 10px;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.page-home .tier-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-home .check__action {
  margin-top: 24px;
}

.page-home .check__figure {
  align-self: start;
}

/* ---------- 维护节奏 ---------- */
.page-home .rhythm__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 44px);
}

.page-home .rhythm__track {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
  display: grid;
  gap: 22px;
}

.page-home .rhythm__track::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--c-flag-blue), var(--c-flag-green) 42%, var(--c-flag-yellow) 72%, var(--c-flag-red));
  opacity: 0.6;
}

.page-home .rhythm__item {
  position: relative;
}

.page-home .rhythm__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: var(--r-pill);
  background: var(--c-flag-blue);
  box-shadow: 0 0 0 3px rgba(58, 114, 248, 0.18);
}

.page-home .rhythm__item:nth-child(2)::before {
  background: var(--c-flag-green);
  box-shadow: 0 0 0 3px rgba(35, 160, 106, 0.18);
}

.page-home .rhythm__item:nth-child(3)::before {
  background: var(--c-flag-yellow);
  box-shadow: 0 0 0 3px rgba(242, 178, 51, 0.18);
}

.page-home .rhythm__item:nth-child(4)::before {
  background: var(--c-mist);
  box-shadow: 0 0 0 3px rgba(127, 211, 224, 0.18);
}

.page-home .rhythm__item strong {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

.page-home .rhythm__item p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.82;
}

.page-home .rhythm__side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-home .rhythm__team {
  padding: 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--hair);
  background: rgba(7, 11, 26, 0.56);
}

.page-home .rhythm__team .eyebrow {
  margin: 0 0 10px;
}

.page-home .rhythm__team-line {
  margin: 0 0 8px;
  color: var(--ink-dim);
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-home .rhythm__team-line:last-child {
  margin-bottom: 0;
}

.page-home .rhythm__team-line .mono {
  color: var(--c-flag-white);
  font-size: 0.95rem;
}

/* ---------- 六步走 ---------- */
.page-home .walk__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .walk__steps li {
  padding: 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--hair);
  background: rgba(7, 11, 26, 0.6);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-home .walk__steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-flag-blue);
}

.page-home .walk__steps li:hover {
  border-color: var(--hair-strong);
  transform: translateY(-2px);
}

.page-home .walk__steps h3 {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
}

.page-home .walk__steps p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.9rem;
  line-height: 1.78;
}

.page-home .walk__tail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
}

.page-home .walk__tail p {
  flex: 1 1 320px;
  margin: 0;
  color: var(--ink-mute);
  font-size: 0.92rem;
  line-height: 1.8;
}

/* ---------- 高频疑问 ---------- */
.page-home .faq__fig {
  max-width: 640px;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

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

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

.page-home .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 1.8vw, 1.08rem);
  line-height: 1.6;
  color: var(--ink);
}

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

.page-home .qa summary::before {
  content: "+";
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  display: grid;
  place-items: center;
  border-radius: var(--r-pill);
  border: 1px solid var(--hair-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  color: var(--c-mist);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-home .qa[open] summary::before {
  content: "–";
  transform: rotate(180deg);
  background: rgba(58, 114, 248, 0.24);
  color: var(--c-flag-white);
}

.page-home .qa summary:hover {
  color: var(--c-mist);
}

.page-home .qa__a {
  padding: 0 0 18px 36px;
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-home .qa__a p {
  margin: 0;
}

.page-home .faq__more {
  margin: 22px 0 0;
  color: var(--ink-mute);
  font-size: 0.92rem;
  line-height: 1.85;
}

.page-home .faq__more-link {
  color: var(--c-flag-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(58, 114, 248, 0.5);
}

.page-home .faq__more-link:hover,
.page-home .faq__more-link:focus-visible {
  color: var(--c-mist);
  border-bottom-color: var(--c-mist);
  outline: none;
}

/* ---------- 结尾行动区 ---------- */
.page-home .cta__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-home .cta__body .eyebrow {
  margin: 0 0 8px;
}

.page-home .cta__body h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.34;
  color: var(--ink);
}

.page-home .cta__text {
  margin: 0;
  max-width: 60ch;
  color: var(--ink-dim);
  font-size: 0.98rem;
  line-height: 1.85;
}

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

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-home .check__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(18px, 3vw, 40px);
  }

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

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

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

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

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

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    grid-template-areas:
      "lead lead"
      "readout quick"
      "visual visual";
    gap: 16px;
  }

  .page-home .hero__lead {
    grid-area: lead;
  }

  .page-home .hero__readout {
    grid-area: readout;
  }

  .page-home .hero__quick {
    grid-area: quick;
    align-content: start;
  }

  .page-home .hero__visual {
    grid-area: visual;
  }

  .page-home .status-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr) minmax(0, 0.9fr);
  }

  .page-home .status-card--a {
    grid-column: auto;
  }

  .page-home .path-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 0.9fr);
  }

  .page-home .path-card--phone {
    grid-column: auto;
  }

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

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

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

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

  .page-home .cta__actions {
    justify-content: flex-end;
  }
}

/* ---------- 宽桌面：左缘刻度栏 ---------- */
@media (min-width: 1180px) {
  .page-home .hero__grid {
    grid-template-columns: 76px minmax(0, 1.45fr) minmax(0, 1fr);
    grid-template-areas:
      "rail lead readout"
      "rail lead visual"
      "rail quick visual";
    align-items: start;
    gap: 18px;
  }

  .page-home .hero__rail {
    grid-area: rail;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    align-self: stretch;
    padding-right: 14px;
    border-right: 1px solid var(--hair);
  }

  .page-home .hero__rail-text {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    color: var(--c-mist);
    writing-mode: vertical-rl;
    text-orientation: mixed;
  }

  .page-home .hero__rail-ticks {
    flex: 1 1 auto;
    width: 1px;
    background-image: repeating-linear-gradient(to bottom, var(--hair-strong) 0 1px, transparent 1px 14px);
  }

  .page-home .hero__visual .fig__frame {
    border-radius: var(--r-lg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero__quick-link,
  .page-home .walk__steps li,
  .page-home .qa summary::before {
    transition: none;
  }
}