.page-products .sol-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: clamp(16px, 3vw, 28px);
  font-size: var(--fs-13);
  letter-spacing: .04em;
  color: var(--muted);
}

.page-products .sol-crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .24s var(--ease), border-color .24s var(--ease);
}

.page-products .sol-crumbs a:hover {
  color: var(--lake);
  border-bottom-color: var(--lake);
}

.page-products .sol-crumbs__sep {
  color: var(--line-strong);
}

.page-products .sol-crumbs .crumbs__item--current {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */

.page-products .sol-hero {
  position: relative;
  padding: clamp(30px, 5vw, 56px) 0 clamp(48px, 7vw, 92px);
}

.page-products .sol-hero__beam {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-soft) 30%, var(--mist) 62%, var(--lake) 100%);
}

.page-products .sol-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}

.page-products .sol-hero__eyebrow {
  margin: 0;
  color: var(--lake);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: .16em;
}

.page-products .sol-hero__title {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 66px);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-products .sol-hero__lede {
  margin: 22px 0 0;
  max-width: 40em;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-products .sol-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .sol-hero__media {
  margin: 0;
}

.page-products .sol-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 4px solid var(--gold);
}

/* ---------- 章节索引 ---------- */

.page-products .sol-index {
  list-style: none;
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .sol-index__item {
  border-bottom: 1px solid var(--line);
}

.page-products .sol-index__link {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  padding: 20px 6px;
  text-decoration: none;
  color: var(--ink);
  transition: background .26s var(--ease), padding-left .26s var(--ease);
}

.page-products .sol-index__link:hover {
  background: var(--mist);
  padding-left: 18px;
}

.page-products .sol-index__num {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--lake);
  padding-top: 3px;
}

.page-products .sol-index__name {
  display: block;
  font-size: var(--fs-20);
  font-weight: 600;
  line-height: 1.3;
}

.page-products .sol-index__desc {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-16);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 设备对照 ---------- */

.page-products .sol-rig {
  position: relative;
  margin-top: clamp(30px, 4vw, 48px);
}

.page-products .sol-rig__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .sol-rig__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
}

.page-products .sol-rig__label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: .16em;
}

.page-products .sol-rig__toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--paper);
  cursor: pointer;
}

.page-products .sol-rig__opt {
  padding: 6px 20px;
  border-radius: 999px;
  font-size: var(--fs-13);
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--muted);
  background: transparent;
  transition: background .24s var(--ease), color .24s var(--ease);
}

.page-products .sol-rig__opt--phone {
  background: var(--lake);
  color: var(--paper);
}

.page-products .sol-rig__input:checked ~ .sol-rig__bar .sol-rig__opt--phone {
  background: transparent;
  color: var(--muted);
}

.page-products .sol-rig__input:checked ~ .sol-rig__bar .sol-rig__opt--pad {
  background: var(--lake);
  color: var(--paper);
}

.page-products .sol-rig__input:focus-visible ~ .sol-rig__bar .sol-rig__toggle {
  outline: 2px solid var(--lake);
  outline-offset: 3px;
}

.page-products .sol-rig__note {
  margin: 16px 0 0;
  font-size: var(--fs-16);
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-products .sol-rig__note--pad {
  display: none;
}

.page-products .sol-rig__input:checked ~ .sol-rig__note--phone {
  display: none;
}

.page-products .sol-rig__input:checked ~ .sol-rig__note--pad {
  display: block;
}

.page-products .sol-rig__stage {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 24px;
  padding: 24px;
  background: var(--mist);
}

.page-products .sol-rig__device {
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  transition: opacity .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-products .sol-rig__device--phone {
  grid-template-columns: 1fr;
  max-width: 260px;
  border-radius: 14px;
}

.page-products .sol-rig__device--pad {
  grid-template-columns: repeat(3, 1fr);
  border-radius: 8px;
  opacity: .45;
}

.page-products .sol-rig__bar-item {
  display: block;
  height: 12px;
  background: var(--mist);
}

.page-products .sol-rig__device--pad .sol-rig__bar-item {
  background: var(--gold-soft);
}

.page-products .sol-rig__input:checked ~ .sol-rig__stage .sol-rig__device--phone {
  opacity: .45;
  border-color: var(--line);
}

.page-products .sol-rig__input:checked ~ .sol-rig__stage .sol-rig__device--pad {
  opacity: 1;
  border-color: var(--lake);
  box-shadow: 0 6px 24px rgba(15, 110, 140, .14);
}

.page-products .sol-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: clamp(36px, 5vw, 64px);
}

.page-products .sol-split__col {
  padding: 4px 0 28px;
}

.page-products .sol-split__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--lake);
}

.page-products .sol-split__col--pad .sol-split__tag {
  color: var(--flag);
}

.page-products .sol-split__title {
  margin: 10px 0 0;
  font-size: var(--fs-24);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

.page-products .sol-split__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-products .sol-split__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 12px;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products .sol-split__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 8px;
  height: 1px;
  background: var(--lake-mid);
}

.page-products .sol-devices__figure img,
.page-products .sol-evolution__figure img,
.page-products .sol-morning__figure img,
.page-products .sol-start__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .sol-devices__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

/* ---------- 晨间场景（深色停顿） ---------- */

.page-products .sol-morning {
  position: relative;
  overflow: hidden;
  background: var(--deep);
  color: var(--paper);
}

.page-products .sol-morning__glow {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 260px;
  background: radial-gradient(120% 100% at 10% 0%, rgba(240, 180, 41, .24), rgba(240, 180, 41, 0) 62%);
  pointer-events: none;
}

.page-products .sol-morning .section-head__index {
  color: var(--gold);
}

.page-products .sol-morning .section-head__title {
  color: var(--paper);
}

.page-products .sol-morning .section-head__note {
  color: rgba(251, 249, 245, .72);
}

.page-products .sol-scenes {
  position: relative;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(32px, 4vw, 52px) 0 0;
  padding: 1px;
  background: var(--line-invert);
}

.page-products .sol-scenes__item {
  background: var(--deep);
  padding: 26px 22px;
  transition: background .3s var(--ease);
}

.page-products .sol-scenes__item:hover {
  background: #0d3549;
}

.page-products .sol-scenes__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-products .sol-scenes__title {
  margin: 12px 0 0;
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-products .sol-scenes__desc {
  margin: 10px 0 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: rgba(251, 249, 245, .78);
}

.page-products .sol-morning__figure {
  position: relative;
  margin: clamp(32px, 5vw, 56px) 0 0;
  border: 1px solid var(--line-invert);
}

.page-products .sol-morning__figure .media__caption {
  color: rgba(251, 249, 245, .66);
  padding: 12px 4px 0;
}

/* ---------- 版本阶梯 ---------- */

.page-products .sol-steps {
  list-style: none;
  display: flex;
  align-items: flex-end;
  gap: clamp(10px, 2vw, 26px);
  margin: clamp(32px, 4vw, 52px) 0 0;
  padding: 0 0 16px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
}

.page-products .sol-steps__item {
  flex: 1 0 96px;
  min-width: 96px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 10px;
}

.page-products .sol-steps__note {
  font-size: var(--fs-13);
  line-height: 1.6;
  color: var(--muted);
}

.page-products .sol-steps__bar {
  display: block;
  height: var(--bar-h, 52px);
  background: var(--bar-c, var(--lake-mid));
  transition: filter .24s var(--ease);
}

.page-products .sol-steps__item:hover .sol-steps__bar {
  filter: brightness(1.14);
}

.page-products .sol-steps__item:nth-child(1) {
  --bar-h: 52px;
  --bar-c: #DCEAEF;
}

.page-products .sol-steps__item:nth-child(2) {
  --bar-h: 78px;
  --bar-c: #C2DBE4;
}

.page-products .sol-steps__item:nth-child(3) {
  --bar-h: 104px;
  --bar-c: #A6CBDA;
}

.page-products .sol-steps__item:nth-child(4) {
  --bar-h: 132px;
  --bar-c: #7FB6C9;
}

.page-products .sol-steps__item:nth-child(5) {
  --bar-h: 162px;
  --bar-c: #4E9DB5;
}

.page-products .sol-steps__item:nth-child(6) {
  --bar-h: 196px;
  --bar-c: var(--lake);
}

.page-products .sol-steps__ver {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--deep);
}

.page-products .sol-steps__item:nth-child(6) .sol-steps__ver {
  color: var(--lake);
}

.page-products .sol-evolution__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

/* ---------- 上手路径 ---------- */

.page-products .sol-start__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 56px);
  margin-top: clamp(30px, 4vw, 52px);
}

.page-products .sol-path {
  list-style: none;
  margin: 0;
  padding: 0 0 0 28px;
  border-left: 2px solid var(--mist);
}

.page-products .sol-path__item {
  position: relative;
  padding-bottom: 30px;
}

.page-products .sol-path__item:last-child {
  padding-bottom: 0;
}

.page-products .sol-path__item::before {
  content: "";
  position: absolute;
  left: -35px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--lake);
  box-sizing: border-box;
}

.page-products .sol-path__item--now::before {
  background: var(--gold);
  border-color: var(--gold);
}

.page-products .sol-path__step {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-products .sol-path__title {
  margin: 8px 0 0;
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.page-products .sol-path__desc {
  margin: 8px 0 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products .sol-start__figure {
  margin: 0;
}

.page-products .sol-start__figure img {
  border-left: 5px solid var(--lake);
}

/* ---------- 常见卡点 ---------- */

.page-products .sol-faq {
  margin-top: clamp(44px, 6vw, 76px);
  border-top: 1px solid var(--line);
}

.page-products .sol-faq .accordion__item {
  border-bottom: 1px solid var(--line);
}

.page-products .sol-faq .accordion__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.page-products .sol-faq .accordion__trigger {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 22px 4px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-18);
  font-weight: 600;
  line-height: 1.5;
}

.page-products .sol-faq .accordion__trigger:hover {
  color: var(--lake);
}

.page-products .sol-faq .accordion__index {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--lake);
}

.page-products .sol-faq .accordion__sign {
  position: relative;
  width: 16px;
  height: 16px;
  justify-self: end;
}

.page-products .sol-faq .accordion__sign::before,
.page-products .sol-faq .accordion__sign::after {
  content: "";
  position: absolute;
  background: var(--lake);
  transition: transform .3s var(--ease);
}

.page-products .sol-faq .accordion__sign::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-products .sol-faq .accordion__sign::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-products .sol-faq .accordion__trigger[aria-expanded="true"] .accordion__sign::after {
  transform: scaleY(0);
}

.page-products .sol-faq .accordion__body {
  padding: 0 4px 24px 52px;
}

.page-products .sol-faq .accordion__body p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 结尾引导 ---------- */

.page-products .sol-next__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: clamp(28px, 5vw, 56px);
  background: var(--mist);
  border-left: 5px solid var(--gold);
}

.page-products .sol-next__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--lake);
}

.page-products .sol-next__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}

.page-products .sol-next__desc {
  margin: 12px 0 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products .sol-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: center;
}

/* ---------- 断点 ---------- */

@media (min-width: 700px) {
  .page-products .sol-index__link {
    grid-template-columns: 64px 180px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
    padding: 22px 8px;
  }

  .page-products .sol-index__desc {
    margin-top: 0;
  }

  .page-products .sol-rig__stage {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
    align-items: end;
    gap: 28px;
    padding: 32px;
  }

  .page-products .sol-scenes {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .sol-split {
    grid-template-columns: 5fr 7fr;
  }

  .page-products .sol-split__col--phone {
    padding-right: 32px;
  }

  .page-products .sol-split__col--pad {
    padding-left: 32px;
    border-left: 1px dashed var(--line-strong);
  }

  .page-products .sol-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

@media (min-width: 900px) {
  .page-products .sol-hero__media img {
    border-bottom-width: 6px;
  }

  .page-products .sol-start__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

  .page-products .sol-next__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-products .sol-faq .accordion__trigger {
    grid-template-columns: 56px minmax(0, 1fr) 20px;
    padding: 24px 4px;
    font-size: var(--fs-20);
  }

  .page-products .sol-faq .accordion__body {
    padding-left: 72px;
  }
}

@media (min-width: 1080px) {
  .page-products .sol-scenes {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .sol-scenes__item:nth-child(2) {
    padding-top: 58px;
  }

  .page-products .sol-scenes__item:nth-child(4) {
    padding-top: 42px;
  }
}

@media (hover: hover) and (min-width: 1080px) {
  .page-products .sol-scenes__desc {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height .3s var(--ease), opacity .3s var(--ease), margin-top .3s var(--ease);
  }

  .page-products .sol-scenes__item:hover .sol-scenes__desc,
  .page-products .sol-scenes__item:focus-within .sol-scenes__desc {
    max-height: 220px;
    margin-top: 10px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .sol-index__link,
  .page-products .sol-rig__device,
  .page-products .sol-scenes__item,
  .page-products .sol-scenes__desc,
  .page-products .sol-steps__bar,
  .page-products .sol-faq .accordion__sign::before,
  .page-products .sol-faq .accordion__sign::after {
    transition-duration: .01ms;
  }
}