.page-products {
  --svc-gap: clamp(1.5rem, 3.5vw, 3rem);
  --svc-line: rgba(217, 199, 163, 0.85);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-products .svc-crumb {
  padding: clamp(1rem, 3vw, 1.5rem) 0 0;
}

.page-products .breadcrumb__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.page-products .breadcrumb__list a {
  color: var(--azurite);
  text-decoration: none;
}

.page-products .breadcrumb__list a:hover {
  color: var(--cinnabar);
}

.page-products .breadcrumb__current {
  color: var(--ink-soft);
}

/* ---------- 首屏 ---------- */

.page-products .svc-hero {
  position: relative;
  padding: clamp(1.4rem, 3.5vw, 2.4rem) 0 clamp(2.2rem, 5vw, 3.8rem);
  border-bottom: 1px solid var(--sand);
  background: linear-gradient(180deg, rgba(217, 199, 163, 0.32) 0%, rgba(246, 240, 228, 0) 62%);
}

.page-products .svc-hero::before,
.page-products .svc-hero::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--sand) 0%, rgba(217, 199, 163, 0) 88%);
  pointer-events: none;
}

.page-products .svc-hero::before { left: max(8px, 2vw); }
.page-products .svc-hero::after { right: max(8px, 2vw); }

.page-products .svc-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--svc-gap);
  align-items: start;
}

.page-products .eyebrow {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
  text-transform: uppercase;
}

.page-products .svc-hero__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.4vw, 3.7rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--ink);
  max-width: 20ch;
}

.page-products .svc-hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-products .svc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-products .svc-hero__aside {
  border-top: 2px solid var(--cinnabar);
  padding-top: 0.85rem;
}

.page-products .svc-hero__aside-label {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--ochre);
}

.page-products .svc-toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.page-products .svc-toc a {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.42rem 0;
  border-bottom: 1px dashed var(--svc-line);
  color: var(--ink-soft);
  font-size: 0.92rem;
  text-decoration: none;
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-products .svc-toc a span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ochre);
}

.page-products .svc-toc a:hover,
.page-products .svc-toc a[aria-current="true"] {
  color: var(--cinnabar);
  padding-left: 0.3rem;
}

.page-products .svc-toc a[aria-current="true"] span {
  color: var(--cinnabar);
}

/* ---------- 章节骨架 ---------- */

.page-products .svc-section {
  padding: clamp(2.4rem, 6vw, 4.6rem) 0;
  border-bottom: 1px solid var(--svc-line);
}

.page-products .svc-section--deep {
  background: rgba(234, 223, 203, 0.55);
}

.page-products .svc-section--pine {
  background: var(--pine);
  border-bottom-color: var(--pine);
}

.page-products .svc-section__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.1rem, 3vw, 2.2rem);
}

.page-products .svc-section__marker {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}

.page-products .svc-section__marker .chapter-num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  line-height: 1;
  color: var(--ochre);
}

.page-products .svc-section__note {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.98rem;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

.page-products .svc-section__body {
  min-width: 0;
}

.page-products .svc-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.55rem, 3.4vw, 2.5rem);
  line-height: 1.22;
  color: var(--ink);
  max-width: 24ch;
}

.page-products .svc-section__body > p {
  margin: 0 0 1.05rem;
  font-size: 1rem;
  line-height: 1.88;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* ---------- 标签 ---------- */

.page-products .svc-chipset {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.4rem 0 0;
  padding: 0;
}

.page-products .svc-chipset--tight {
  margin-top: 1.1rem;
}

.page-products .tag {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  border-radius: 2px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
}

.page-products .tag--azurite {
  color: var(--azurite);
  border-color: rgba(47, 100, 115, 0.45);
  background: rgba(47, 100, 115, 0.07);
}

.page-products .tag--cinnabar {
  color: var(--cinnabar);
  border-color: rgba(181, 65, 47, 0.45);
  background: rgba(181, 65, 47, 0.07);
}

.page-products .tag--ochre {
  color: #8a6520;
  border-color: rgba(200, 155, 74, 0.6);
  background: rgba(200, 155, 74, 0.14);
}

.page-products .tag--pine {
  color: var(--pine);
  border-color: rgba(41, 71, 58, 0.45);
  background: rgba(41, 71, 58, 0.07);
}

/* ---------- 图片 ---------- */

.page-products .svc-media {
  margin: 1.8rem 0 0;
  padding: 0;
}

.page-products .svc-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--paper-deep);
  border: 1px solid var(--svc-line);
}

.page-products .svc-media--cut img {
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

.page-products .svc-media--square img {
  max-width: 560px;
  aspect-ratio: 1 / 1;
}

.page-products .svc-media--strip img {
  aspect-ratio: 16 / 5;
}

.page-products .svc-media__cap {
  margin: 0.6rem 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--ink-soft);
  border-left: 2px solid var(--ochre);
  padding-left: 0.7rem;
}

/* ---------- 能力模块 ---------- */

.page-products .svc-modules {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1.6rem;
}

.page-products .svc-module {
  position: relative;
  padding: 1.25rem 1.2rem 1.1rem;
  background: var(--paper);
  border: 1px solid var(--svc-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-products .svc-module::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--azurite);
}

.page-products .svc-module--cinnabar::before { background: var(--cinnabar); }
.page-products .svc-module--pine::before { background: var(--pine); }
.page-products .svc-module--ochre::before { background: var(--ochre); }

.page-products .svc-module:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 26px -18px rgba(42, 33, 28, 0.65);
}

.page-products .svc-module__idx {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--ochre);
}

.page-products .svc-module__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--ink);
}

.page-products .svc-module p {
  margin: 0 0 0.6rem;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products .svc-fold {
  margin-top: 0.7rem;
  border-top: 1px dashed rgba(42, 33, 28, 0.22);
}

.page-products .svc-fold summary {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0 0.2rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--azurite);
}

.page-products .svc-fold summary::-webkit-details-marker {
  display: none;
}

.page-products .svc-fold summary::after {
  content: "＋";
  margin-left: auto;
  color: var(--cinnabar);
}

.page-products .svc-fold[open] summary::after {
  content: "－";
}

.page-products .svc-fold__body p {
  margin: 0.4rem 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 流程 ---------- */

.page-products .svc-flow {
  margin-top: 1.5rem;
}

.page-products .svc-flow__svg {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 0.9rem;
}

.page-products .svc-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
}

.page-products .svc-step {
  border-left: 3px solid var(--sand);
  padding: 0.45rem 0 0.55rem 0.85rem;
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-products .svc-step:hover,
.page-products .svc-step:target {
  border-left-color: var(--cinnabar);
  background: rgba(234, 223, 203, 0.7);
}

.page-products .svc-step__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--ochre);
  text-decoration: none;
}

.page-products .svc-step:hover .svc-step__no,
.page-products .svc-step:target .svc-step__no {
  color: var(--cinnabar);
}

.page-products .svc-step__title {
  margin: 0.15rem 0 0.3rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.page-products .svc-step__text {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 版本 ---------- */

.page-products .svc-version {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.page-products .svc-version__cell {
  padding: 0.9rem 1rem;
  background: var(--paper);
  border: 1px solid var(--svc-line);
  border-left: 3px solid var(--azurite);
}

.page-products .svc-version__val {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.1;
  color: var(--pine);
}

.page-products .svc-version__label {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.page-products .svc-version__foot {
  margin: 1.1rem 0 0;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--svc-line);
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 场景 ---------- */

.page-products .svc-cases {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.page-products .svc-case {
  padding: 1rem 1.1rem;
  background: var(--paper);
  border-bottom: 2px solid var(--sand);
}

.page-products .svc-case:nth-child(odd) {
  border-bottom-color: var(--azurite);
}

.page-products .svc-case:nth-child(even) {
  border-bottom-color: var(--cinnabar);
}

.page-products .svc-case__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
}

.page-products .svc-case__text {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 理由（深底） ---------- */

.page-products .svc-section--pine .svc-section__note,
.page-products .svc-section--pine .svc-section__marker .chapter-num {
  color: var(--sand);
}

.page-products .svc-section--pine .svc-title {
  color: var(--paper);
}

.page-products .svc-section--pine .svc-section__body > p {
  color: rgba(246, 240, 228, 0.82);
}

.page-products .svc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.4rem;
}

.page-products .svc-links .btn--quiet {
  color: var(--sand);
  border: 1px solid rgba(217, 199, 163, 0.45);
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-products .svc-links .btn--quiet:hover {
  color: var(--paper);
  border-color: var(--cinnabar);
}

/* ---------- 尾部行动区 ---------- */

.page-products .svc-cta {
  padding: clamp(2rem, 5vw, 3.4rem) 0 clamp(2.4rem, 5vw, 4rem);
  background: var(--paper-deep);
  border-top: 3px solid var(--cinnabar);
}

.page-products .svc-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.3rem;
  align-items: center;
}

.page-products .svc-cta__title {
  margin: 0 0 0.8rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.24;
  color: var(--ink);
}

.page-products .svc-cta__text p {
  margin: 0;
  max-width: 56ch;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-products .svc-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-products .btn {
  display: inline-block;
  padding: 0.68rem 1.25rem;
  font-size: 0.9rem;
  text-decoration: none;
  border-radius: 2px;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-products .btn--solid {
  background: var(--cinnabar);
  color: var(--paper);
  border: 1px solid var(--cinnabar);
}

.page-products .btn--solid:hover {
  background: var(--ember);
  border-color: var(--ember);
}

.page-products .btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink-soft);
}

.page-products .btn--ghost:hover {
  color: var(--azurite);
  border-color: var(--azurite);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-products .svc-modules {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-products .svc-module:nth-child(2) {
    margin-top: 2.4rem;
  }

  .page-products .svc-module:nth-child(3) {
    margin-top: -0.6rem;
  }

  .page-products .svc-module:nth-child(4) {
    margin-top: 1.8rem;
  }

  .page-products .svc-cases {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .svc-version {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .svc-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

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

@media (min-width: 900px) {
  .page-products .svc-hero__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 3fr);
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-products .svc-hero__aside {
    margin-top: 0.4rem;
  }

  .page-products .svc-section__grid {
    grid-template-columns: minmax(0, 2.6fr) minmax(0, 9fr);
    gap: clamp(1.6rem, 3vw, 3rem);
  }

  .page-products .svc-section__marker {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-products .svc-section__marker .chapter-num {
    font-size: clamp(2rem, 4vw, 3rem);
  }

  .page-products .svc-version {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .svc-steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.6rem;
  }

  .page-products .svc-step {
    padding-left: 0.6rem;
  }

  .page-products .svc-step__text {
    font-size: 0.79rem;
  }

  .page-products .svc-cases {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .svc-media--strip img {
    max-height: 320px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .svc-module,
  .page-products .svc-step,
  .page-products .svc-toc a,
  .page-products .btn {
    transition: none;
  }

  .page-products .svc-module:hover {
    transform: none;
  }
}