.page-products {
  --pp-line: 3px solid var(--ink);
  --pp-shadow: 6px 6px 0 var(--ink);
  --pp-shadow-lift: 9px 9px 0 var(--ink);
  background: var(--lime);
  color: var(--ink);
  overflow-x: clip;
  font-family: var(--font-sans);
}

/* ---------- 面包屑 ---------- */
.page-products__crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  padding-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--grey);
}
.page-products__crumbs a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--clay);
  padding-bottom: 1px;
}
.page-products__crumbs a:hover {
  color: var(--clay);
}

/* ---------- 首屏 ---------- */
.page-products__hero {
  position: relative;
  padding: 10px 0 96px;
  overflow: hidden;
}
.page-products__hero::after {
  content: "";
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -78px;
  height: 190px;
  background: var(--clay);
  transform: rotate(-4deg);
  transform-origin: left bottom;
  z-index: 0;
  pointer-events: none;
}
.page-products__hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}
.page-products__kicker {
  display: inline-block;
  color: var(--clay-deep);
  font-family: var(--font-mono);
  letter-spacing: .12em;
  border-bottom: 3px solid var(--clay);
  padding-bottom: 4px;
}
.page-products__title {
  font-size: clamp(34px, 9vw, 72px);
  line-height: 1.03;
  letter-spacing: -.02em;
  font-weight: 900;
  margin: 18px 0 18px;
  max-width: 18ch;
}
.page-products__lede {
  font-size: 16px;
  line-height: 1.8;
  max-width: 56ch;
  margin: 0 0 26px;
  color: var(--ink);
}
.page-products__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-products__hero-side {
  display: none;
}
.page-products__hero-stamp {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(48px, 7vw, 92px);
  line-height: .92;
  letter-spacing: -.03em;
  color: var(--clay-deep);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.page-products__hero-anno {
  color: var(--grey);
  letter-spacing: .1em;
}

/* ---------- 区块骨架 ---------- */
.page-products__section {
  position: relative;
  padding: 52px 0;
}
.page-products__section-head {
  position: relative;
  padding-top: 40px;
  margin-bottom: 28px;
}
.page-products__section-head .specimen-tag {
  position: absolute;
  top: 0;
  left: 0;
}
.page-products__h2 {
  font-size: clamp(27px, 6.6vw, 50px);
  line-height: 1.08;
  letter-spacing: -.015em;
  font-weight: 900;
  margin: 0 0 14px;
}
.page-products__intro {
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--grey);
  margin: 0;
}
.page-products__intro a,
.page-products__path-text a,
.page-products__cadence-text a,
.page-products__fix-body a {
  color: var(--clay-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--clay);
}
.page-products__intro a:hover,
.page-products__path-text a:hover,
.page-products__cadence-text a:hover,
.page-products__fix-body a:hover {
  color: var(--orange);
  border-color: var(--orange);
}

/* ---------- 设备自检 ---------- */
.page-products__check-grid {
  display: grid;
  gap: 30px;
}
.page-products__check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--pp-line);
}
.page-products__check-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 2px 14px;
  padding: 18px 0;
  border-bottom: var(--pp-line);
}
.page-products__check-num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--clay);
  padding-top: 4px;
  letter-spacing: .04em;
}
.page-products__check-title {
  font-size: 18px;
  font-weight: 800;
  margin: 0;
  letter-spacing: -.01em;
}
.page-products__check-text {
  grid-column: 2;
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--grey);
}
.page-products__check-figure,
.page-products__path-figure,
.page-products__switch-figure,
.page-products__adapt-figure,
.page-products__help-figure {
  margin: 0;
}
.page-products__check-figure img,
.page-products__path-figure img,
.page-products__switch-figure img,
.page-products__adapt-figure img,
.page-products__help-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-products__check-figure .media-frame,
.page-products__path-figure .media-frame,
.page-products__switch-figure .media-frame {
  border: var(--pp-line);
  box-shadow: var(--pp-shadow);
  background: var(--lime);
}

/* ---------- 下载路径 ---------- */
.page-products__path-grid {
  display: grid;
  gap: 30px;
}
.page-products__path-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-products__path-item {
  position: relative;
  padding: 0 0 28px 46px;
}
.page-products__path-item:last-child {
  padding-bottom: 0;
}
.page-products__path-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--orange);
  border: 3px solid var(--ink);
  z-index: 1;
}
.page-products__path-item::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 24px;
  bottom: 0;
  width: 3px;
  background: var(--ink);
}
.page-products__path-item:last-child::after {
  display: none;
}
.page-products__path-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--grey);
  margin-bottom: 6px;
}
.page-products__path-title {
  font-size: 19px;
  font-weight: 800;
  margin: 0 0 6px;
  letter-spacing: -.01em;
}
.page-products__path-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--grey);
  max-width: 52ch;
}

/* ---------- 切换三步 ---------- */
.page-products__switch-grid {
  display: grid;
  gap: 30px;
}
.page-products__steps {
  display: grid;
  gap: 16px;
}
.page-products__step {
  display: block;
  width: 100%;
  text-align: left;
  font-family: inherit;
  color: var(--ink);
  background: var(--lime);
  border: var(--pp-line);
  box-shadow: var(--pp-shadow);
  padding: 22px 20px 24px;
  min-height: 44px;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.page-products__step .step__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--grey);
  margin-bottom: 10px;
}
.page-products__step-name {
  display: block;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -.01em;
  margin-bottom: 8px;
}
.page-products__step-text {
  display: block;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grey);
}
.page-products__step[aria-pressed="true"] {
  background: var(--green);
  color: var(--lime);
  transform: translate(-3px, -3px);
  box-shadow: var(--pp-shadow-lift);
}
.page-products__step[aria-pressed="true"] .step__index {
  color: var(--whistle);
}
.page-products__step[aria-pressed="true"] .page-products__step-text {
  color: rgba(244, 241, 234, .88);
}
.page-products__step:hover {
  transform: translate(-2px, -2px);
}
.page-products__step:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}
.page-products__switch-figure .media-frame {
  border: var(--pp-line);
  box-shadow: var(--pp-shadow);
  max-width: 460px;
  margin: 0 auto;
}

/* ---------- 板块对照带 ---------- */
.page-products__band {
  padding: 0;
  margin-top: 6px;
}
.page-products__scroller {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 30px 0 36px;
  margin: 0;
  scrollbar-width: thin;
}
.page-products__scroller:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}
.page-products__block {
  flex: 0 0 82%;
  min-width: 0;
  scroll-snap-align: start;
  position: relative;
  padding: 46px 20px 24px;
  background: var(--lime);
  color: var(--ink);
  border: var(--pp-line);
  box-shadow: 6px 6px 0 var(--clay);
}
.page-products__block .specimen-tag {
  position: absolute;
  top: -3px;
  left: -3px;
}
.page-products__block-title {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -.01em;
  margin: 0;
}
.page-products__block-dl {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 12px;
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.62;
}
.page-products__block-dl dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--clay);
  white-space: nowrap;
  padding-top: 3px;
}
.page-products__block-dl dd {
  margin: 0;
  color: var(--ink);
}

/* ---------- 适配区间 ---------- */
.page-products__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}
.page-products__adapt-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--pp-line);
}
.page-products__adapt-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 14px;
  padding: 15px 0;
  border-bottom: 2px solid var(--ink);
  transition: opacity .22s ease;
}
.page-products__adapt-item[data-hidden="true"] {
  display: none;
}
.page-products__adapt-item[data-enter="true"] {
  animation: pp-fade .28s ease both;
}
@keyframes pp-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}
.page-products__adapt-name {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 0;
}
.page-products__adapt-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  padding: 4px 9px;
  border: 2px solid var(--ink);
  background: var(--whistle);
  white-space: nowrap;
}
.page-products__adapt-text {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--grey);
  max-width: 62ch;
}
.page-products__cadence {
  margin-top: 30px;
  padding: 22px 22px 24px;
  background: var(--green);
  color: var(--lime);
  border: var(--pp-line);
  box-shadow: var(--pp-shadow);
}
.page-products__cadence-title {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -.01em;
  margin: 0 0 8px;
}
.page-products__cadence-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  max-width: 62ch;
  color: rgba(244, 241, 234, .92);
}
.page-products__cadence-text a {
  color: var(--whistle);
  border-color: var(--whistle);
}
.page-products__cadence-text a:hover {
  color: var(--lime);
  border-color: var(--lime);
}
.page-products__adapt-figure {
  margin: 30px 0 0;
}
.page-products__adapt-figure .media-frame {
  border: var(--pp-line);
  box-shadow: var(--pp-shadow);
  background: var(--lime);
}

/* ---------- 自助排查 ---------- */
.page-products__fix-list {
  display: grid;
  gap: 12px;
}
.page-products__fix-item {
  background: var(--lime);
  border: var(--pp-line);
  box-shadow: var(--pp-shadow);
}
.page-products__fix-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 16px 18px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.01em;
  cursor: pointer;
  list-style: none;
}
.page-products__fix-item summary::-webkit-details-marker {
  display: none;
}
.page-products__fix-item summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--clay);
  flex: 0 0 auto;
}
.page-products__fix-item[open] summary::before {
  content: "—";
}
.page-products__fix-item summary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: -3px;
}
.page-products__fix-body {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 2px solid var(--ink);
  font-size: 15px;
  line-height: 1.74;
  color: var(--grey);
}
.page-products__fix-body p {
  margin: 0;
  max-width: 64ch;
}

/* ---------- 求助 ---------- */
.page-products__help-grid {
  display: grid;
  gap: 30px;
  align-items: start;
}
.page-products__help-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}
.page-products__help-figure {
  margin: 0;
}
.page-products__help-figure .media-frame {
  border: var(--pp-line);
  box-shadow: var(--pp-shadow);
  background: var(--lime);
}
.page-products .media-frame {
  overflow: hidden;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products__check-item {
    grid-template-columns: 56px minmax(0, 1fr);
  }
  .page-products__block {
    flex: 0 0 62%;
  }
}

@media (min-width: 900px) {
  .page-products__section {
    padding: 72px 0;
  }
  .page-products__hero {
    padding: 20px 0 130px;
  }
  .page-products__hero::after {
    height: 230px;
    bottom: -96px;
  }
  .page-products__hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: end;
    gap: 40px;
  }
  .page-products__hero-side {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 16px;
    padding-bottom: 10px;
  }
  .page-products__check-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 44px;
    align-items: start;
  }
  .page-products__path-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    gap: 46px;
    align-items: start;
  }
  .page-products__switch-grid {
    gap: 36px;
  }
  .page-products__steps {
    position: relative;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    padding-top: 30px;
  }
  .page-products__steps::before {
    content: "";
    position: absolute;
    top: 0;
    left: 8px;
    right: 8px;
    height: 4px;
    background: repeating-linear-gradient(90deg, var(--ink) 0 16px, transparent 16px 28px);
  }
  .page-products__step {
    height: 100%;
  }
  .page-products__switch-figure .media-frame {
    max-width: 520px;
  }
  .page-products__adapt-item {
    grid-template-columns: 190px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 8px 20px;
  }
  .page-products__adapt-text {
    grid-column: 2;
    margin-top: 0;
  }
  .page-products__help-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 46px;
  }
  .page-products__block {
    flex: 0 0 330px;
  }
  .page-products__scroller {
    padding: 36px 0 44px;
  }
}

@media (min-width: 1200px) {
  .page-products__block {
    flex: 0 0 348px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products__step,
  .page-products__adapt-item {
    transition: none;
  }
  .page-products__step:hover,
  .page-products__step[aria-pressed="true"] {
    transform: none;
  }
  .page-products__adapt-item[data-enter="true"] {
    animation: none;
  }
  .page-products__scroller {
    scroll-snap-type: none;
  }
}