.page-products {
  --dl-gap: clamp(1.5rem, 4vw, 3rem);
  --dl-rule: 1px solid var(--border);
  display: block;
  overflow-x: clip;
}

.page-products .dl-crumb {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: clamp(0.5rem, 1.5vw, 1rem);
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(1rem, 2.5vw, 1.75rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .dl-hero::before {
  content: "";
  position: absolute;
  inset: -1.5rem -1rem 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(120% 90% at 16% 8%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 90% at 16% 8%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-products .dl-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--dl-gap);
}

.page-products .dl-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-products .dl-hero__eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--signal);
  flex: none;
}

.page-products .dl-hero__eyebrow .mono {
  color: var(--signal);
  letter-spacing: 0.04em;
  font-weight: 700;
}

.page-products .dl-hero__title {
  margin: 0 0 1.25rem;
  font-size: clamp(1.9rem, 6.2vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--text);
  text-wrap: balance;
}

.page-products .dl-hero__desc {
  margin: 0 0 1.75rem;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.page-products .dl-hero__feedback {
  font-size: 0.8125rem;
  color: var(--jade);
  letter-spacing: 0.02em;
}

.page-products .dl-hero__dial {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.5rem 1.25rem 1.25rem;
  border: var(--dl-rule);
  background: var(--bg-2);
}

.page-products .dl-hero__dial::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--signal) 0%, transparent 72%);
}

.page-products .dl-hero__dial .version-dial__label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-products .dl-hero__dial .version-dial__num {
  font-size: clamp(2.4rem, 10vw, 3.6rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--signal);
}

.page-products .dl-hero__dial .version-dial__tick {
  display: block;
  height: 10px;
  background-image: repeating-linear-gradient(90deg, var(--border) 0 1px, transparent 1px 9px);
  margin-bottom: 0.5rem;
}

.page-products .dl-hero__facts {
  margin: 0.75rem 0 0;
  padding-top: 1.25rem;
  border-top: var(--dl-rule);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 1rem;
}

.page-products .dl-hero__facts > div {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-products .dl-hero__facts dt {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.page-products .dl-hero__facts dd {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
}

/* ---------- 桌面端优势 ---------- */
.page-products .dl-why {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.page-products .dl-why__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .dl-why__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: dlwhy;
}

.page-products .dl-why__list li {
  position: relative;
  counter-increment: dlwhy;
  padding: 1.25rem 0 1.25rem 3.25rem;
  border-top: var(--dl-rule);
}

.page-products .dl-why__list li:last-child {
  border-bottom: var(--dl-rule);
}

.page-products .dl-why__list li::before {
  content: counter(dlwhy, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1.35rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--signal);
}

.page-products .dl-why__list h3 {
  margin: 0 0 0.4rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.page-products .dl-why__list p {
  margin: 0;
  max-width: 46ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .dl-why__figure {
  margin: 0;
}

/* ---------- 两条路径 ---------- */
.page-products .dl-paths {
  position: relative;
  padding-block: clamp(3rem, 8vw, 6rem);
  background: var(--bg-2);
}

.page-products .dl-paths::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, var(--wash) 0 1px, transparent 1px 20px);
  pointer-events: none;
}

.page-products .dl-paths > .container {
  position: relative;
  z-index: 1;
}

.page-products .dl-paths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .dl-path {
  padding: 1.5rem 1.25rem;
  background: var(--bg);
  border: var(--dl-rule);
  border-left: 3px solid var(--border);
}

.page-products .dl-path--mobile {
  border-left-color: var(--jade);
}

.page-products .dl-path--desktop {
  border-left-color: var(--signal);
  background-image: linear-gradient(155deg, rgba(255, 210, 0, 0.07), transparent 58%);
}

.page-products .dl-path__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
}

.page-products .dl-path__title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-products .dl-path__desc {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .dl-path__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .dl-path__list li {
  padding: 0.65rem 0;
  border-top: var(--dl-rule);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-products .dl-path__list li:last-child {
  border-bottom: var(--dl-rule);
}

.page-products .dl-path__list strong {
  display: inline-block;
  min-width: 3.2rem;
  margin-right: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text);
}

.page-products .dl-paths__figure {
  margin: clamp(1.75rem, 4vw, 2.5rem) auto 0;
  max-width: 340px;
}

/* ---------- 三步流程 ---------- */
.page-products .dl-steps {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.page-products .dl-steps__list {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  background-image: linear-gradient(var(--border), var(--border));
  background-size: 1px 100%;
  background-position: 0.7rem 0;
  background-repeat: no-repeat;
}

.page-products .dl-step {
  position: relative;
  padding: 1.5rem 0 1.5rem 3.25rem;
  border-top: var(--dl-rule);
}

.page-products .dl-step:last-child {
  border-bottom: var(--dl-rule);
}

.page-products .dl-step__num {
  position: absolute;
  left: 0;
  top: 1.6rem;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--signal);
  line-height: 1;
}

.page-products .dl-step__body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.page-products .dl-step__body > p {
  margin: 0 0 0.9rem;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .dl-step__details {
  background: var(--bg-2);
  border: var(--dl-rule);
}

.page-products .dl-step__details summary {
  cursor: pointer;
  padding: 0.7rem 0.9rem;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--accent-fg);
  list-style: none;
}

.page-products .dl-step__details summary::-webkit-details-marker {
  display: none;
}

.page-products .dl-step__details summary::before {
  content: "+";
  display: inline-block;
  width: 1.1rem;
  font-family: var(--font-mono);
  color: var(--jade);
}

.page-products .dl-step__details[open] summary::before {
  content: "−";
}

.page-products .dl-step__details p {
  margin: 0;
  padding: 0 0.9rem 0.9rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .dl-steps__figure {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
}

/* ---------- 版本变化 ---------- */
.page-products .dl-version {
  position: relative;
  padding-block: clamp(3rem, 8vw, 6rem);
  background: var(--bg-2);
  border-top: var(--dl-rule);
  border-bottom: var(--dl-rule);
}

.page-products .dl-version > .container {
  position: relative;
  z-index: 1;
}

.page-products .dl-version__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 2.5rem);
}

.page-products .dl-version__ruler {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin: 1.25rem 0 1.5rem;
  padding-bottom: 0.7rem;
  border-bottom: var(--dl-rule);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.page-products .dl-version__ruler .is-now {
  color: var(--signal);
  font-weight: 700;
}

.page-products .dl-version__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .dl-version__list li {
  position: relative;
  padding: 0.9rem 0 0.9rem 1.35rem;
  border-top: var(--dl-rule);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .dl-version__list li:last-child {
  border-bottom: var(--dl-rule);
}

.page-products .dl-version__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.45rem;
  width: 6px;
  height: 6px;
  background: var(--jade);
}

.page-products .dl-version__list strong {
  margin-right: 0.4rem;
  color: var(--text);
  font-weight: 700;
}

.page-products .dl-version__side {
  align-self: start;
  padding: 1.5rem 1.25rem;
  background: var(--bg);
  border: var(--dl-rule);
}

.page-products .dl-version__side h3 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-products .dl-version__side-list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
}

.page-products .dl-version__side-list li {
  border-top: var(--dl-rule);
}

.page-products .dl-version__side-list li:last-child {
  border-bottom: var(--dl-rule);
}

.page-products .dl-version__side-list a {
  display: block;
  padding: 0.7rem 0;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-products .dl-version__side-list a:hover,
.page-products .dl-version__side-list a:focus-visible {
  color: var(--jade);
}

.page-products .dl-version__figure {
  margin: clamp(2rem, 4vw, 3rem) 0 0;
}

/* ---------- 前提条件 ---------- */
.page-products .dl-prepare {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.page-products .dl-prepare__notice {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--amber);
  background: var(--wash);
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-products .dl-prepare__notice .tag {
  flex: none;
  margin-top: 0.1rem;
}

.page-products .dl-prepare__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 2.5rem);
  margin-top: clamp(1.5rem, 4vw, 2rem);
}

.page-products .dl-prepare__table {
  overflow-x: auto;
}

.page-products .dl-prepare__table table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-products .dl-prepare__table caption {
  padding-bottom: 0.75rem;
  text-align: left;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.page-products .dl-prepare__table th,
.page-products .dl-prepare__table td {
  padding: 0.85rem 0.9rem;
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
}

.page-products .dl-prepare__table thead th {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}

.page-products .dl-prepare__table tbody th {
  font-weight: 600;
  color: var(--text);
}

.page-products .dl-prepare__table tbody td {
  color: var(--text-dim);
}

.page-products .dl-prepare__table tbody tr:nth-child(odd) {
  background: var(--wash);
}

.page-products .dl-prepare__figure {
  margin: 0;
}

/* ---------- 下一步 ---------- */
.page-products .dl-next {
  padding-block: clamp(2.5rem, 6vw, 4rem) clamp(3rem, 8vw, 5rem);
  border-top: var(--dl-rule);
}

.page-products .dl-next__grid {
  margin-top: clamp(1.5rem, 4vw, 2rem);
}

.page-products .dl-next__card {
  display: block;
  padding: 1.25rem 1.15rem;
  background: var(--bg-2);
  border: var(--dl-rule);
  text-decoration: none;
  color: inherit;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-products .dl-next__card:hover,
.page-products .dl-next__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--signal);
}

.page-products .dl-next__card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.page-products .dl-next__card p {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .dl-next__go {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--accent-fg);
}

.page-products .dl-next__note {
  margin: 1.75rem 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .dl-next__note a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-products .dl-paths__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .dl-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 4rem);
  }

  .page-products .dl-why__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-products .dl-version__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
  }

  .page-products .dl-prepare__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .dl-steps__list {
    background-position: 1.1rem 0;
  }

  .page-products .dl-step {
    padding-left: 4rem;
  }
}

@media (min-width: 1100px) {
  .page-products .dl-paths__grid {
    gap: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-next__card,
  .page-products .dl-version__side-list a {
    transition: none;
  }

  .page-products .dl-next__card:hover,
  .page-products .dl-next__card:focus-visible {
    transform: none;
  }
}