.page-products {
  --dl-gap: clamp(16px, 2.2vw, 28px);
}

.page-products .breadcrumb {
  padding-top: clamp(18px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  padding: clamp(24px, 4vw, 58px) 0 clamp(26px, 4vw, 54px);
  border-bottom: 1px solid var(--line);
}

.page-products .dl-hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 5.8vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 14px 0 0;
  max-width: 17ch;
}

.page-products .dl-hero .lead {
  margin-top: 18px;
  max-width: 64ch;
}

.page-products .dl-hero__facts {
  margin-top: clamp(24px, 3.6vw, 42px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .dl-fact {
  background: var(--ink-800);
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .dl-fact__k {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.6vw, 28px);
  font-weight: 500;
  line-height: 1.1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-products .dl-fact__v {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--paper-2);
}

.page-products .dl-hero__actions {
  margin-top: clamp(20px, 3vw, 32px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 章节骨架 ---------- */
.page-products .dl-section {
  padding: clamp(38px, 6vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.page-products .dl-section__head {
  max-width: 74ch;
}

.page-products .dl-section__head .section__title {
  margin-top: 10px;
}

.page-products .dl-section__head .lead {
  margin-top: 14px;
}

/* ---------- 桌面端 ---------- */
.page-products .dl-split {
  margin-top: clamp(22px, 3.4vw, 40px);
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .dl-shot {
  margin: 0;
  background: var(--ink-800);
  display: flex;
  flex-direction: column;
}

.page-products .dl-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .dl-shot__cap {
  padding: 12px 18px;
  font-size: 12px;
  letter-spacing: 0.07em;
  line-height: 1.6;
  color: var(--paper-2);
  border-top: 1px solid var(--line);
}

.page-products .dl-feed {
  background: var(--ink-800);
  display: flex;
  flex-direction: column;
}

.page-products .dl-feed__item {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.page-products .dl-feed__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--paper);
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .dl-feed__title .mono {
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.04em;
}

.page-products .dl-feed__desc {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--paper-2);
}

.page-products .dl-feed__foot {
  margin-top: auto;
  padding: 18px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  background: var(--ink-700);
}

/* ---------- 移动端 ---------- */
.page-products .dl-mobile {
  margin-top: clamp(22px, 3.4vw, 40px);
  display: grid;
  gap: var(--dl-gap);
}

.page-products .dl-mobile__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
  display: flex;
  flex-direction: column;
}

.page-products .dl-mobile__media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 620px;
  object-fit: cover;
}

.page-products .dl-mobile__panels {
  display: grid;
  gap: var(--dl-gap);
}

.page-products .dl-subpanel {
  background: var(--ink-700);
  border: 1px solid var(--line);
  padding: clamp(18px, 2.4vw, 28px);
}

.page-products .dl-subpanel__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-products .dl-subpanel__text {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-2);
}

.page-products .dl-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-products .dl-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper-2);
}

.page-products .dl-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

.page-products .dl-subpanel .copy-btn {
  margin-top: 18px;
}

.page-products .dl-shot--inline {
  margin-top: 16px;
  border: 1px solid var(--line);
}

/* ---------- 版本 ---------- */
.page-products .dl-shot--banner {
  margin-top: clamp(22px, 3.4vw, 38px);
  border: 1px solid var(--line);
}

.page-products .dl-shot--banner img {
  height: clamp(170px, 24vw, 300px);
  object-fit: cover;
}

.page-products .dl-log {
  margin-top: clamp(18px, 2.6vw, 28px);
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .dl-log__col {
  background: var(--ink-800);
  padding: clamp(18px, 2.4vw, 30px);
}

.page-products .dl-log__col--desktop {
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-products .dl-log__col--mobile {
  box-shadow: inset 3px 0 0 var(--magenta);
}

.page-products .dl-log__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-products .dl-log__ver {
  font-family: var(--font-mono);
  font-size: clamp(32px, 4.6vw, 50px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.page-products .dl-log__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-products .dl-log__list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--paper-2);
}

.page-products .dl-log__n {
  font-size: 11.5px;
  color: var(--amber);
  letter-spacing: 0.06em;
  padding-top: 3px;
}

.page-products .dl-note {
  margin-top: var(--dl-gap);
  border: 1px solid var(--line);
  background: var(--ink-800);
  padding: clamp(16px, 2.2vw, 24px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.page-products .dl-note__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper-2);
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1 1 320px;
}

/* ---------- 安装步骤 ---------- */
.page-products .dl-install {
  margin-top: clamp(22px, 3.4vw, 40px);
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-products .dl-steps {
  list-style: none;
  margin: 0 0 0 17px;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-products .dl-step {
  position: relative;
  padding: 0 0 28px 28px;
}

.page-products .dl-step:last-child {
  padding-bottom: 0;
}

.page-products .dl-step__num {
  position: absolute;
  left: 0;
  top: 2px;
  transform: translateX(-50%);
  width: 34px;
  height: 24px;
  display: grid;
  place-items: center;
  background: var(--ink-700);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .dl-step__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 500;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-products .dl-step__body p {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-2);
  max-width: 62ch;
}

.page-products .dl-install__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-products .dl-install__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .dl-install__note {
  padding: 14px 18px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  line-height: 1.65;
  color: var(--paper-2);
}

/* ---------- 答疑折叠 ---------- */
.page-products .dl-faq {
  margin-top: clamp(22px, 3.4vw, 40px);
  display: grid;
  gap: 10px;
}

.page-products .dl-fold {
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: 0 clamp(16px, 2vw, 22px);
}

.page-products .dl-fold > summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--paper);
}

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

.page-products .dl-fold > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--cyan);
}

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

.page-products .dl-fold__body {
  padding: 16px 0 20px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-2);
}

.page-products .dl-fold__body p {
  margin: 0 0 10px;
}

.page-products .dl-fold__body p:last-child {
  margin-bottom: 0;
}

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

/* ---------- 收尾 ---------- */
.page-products .dl-cta {
  padding: clamp(38px, 6vw, 84px) 0 clamp(24px, 4vw, 56px);
}

.page-products .dl-cta__grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .dl-cta__card {
  background: var(--ink-800);
  padding: clamp(20px, 2.4vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  transition: background 0.25s ease;
}

.page-products .dl-cta__card:hover,
.page-products .dl-cta__card:focus-visible {
  background: var(--ink-700);
}

.page-products .dl-cta__k {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .dl-cta__t {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 21px);
  font-weight: 500;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-products .dl-cta__d {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--paper-2);
}

.page-products .dl-cta__foot {
  margin-top: clamp(22px, 3vw, 34px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: clamp(20px, 2.6vw, 28px);
  border-top: 1px solid var(--line);
}

.page-products .dl-cta__lede {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper-2);
  max-width: 62ch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .dl-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-products .dl-split {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }

  .page-products .dl-mobile {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.6fr);
    align-items: start;
  }

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

  .page-products .dl-install {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-products .dl-cta__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .page-products .dl-feed__foot .btn,
  .page-products .dl-note .btn,
  .page-products .dl-cta__foot .btn {
    width: 100%;
    text-align: center;
  }

  .page-products .dl-log__ver {
    letter-spacing: -0.02em;
  }
}