.page-products {
  --pp-orange: #E4452B;
  --pp-navy: #16324A;
  --pp-yellow: #F5B82E;
  --pp-line: #D6CBB9;
  --pp-paper: #F4EDE4;
  --pp-ink: #1A1A1A;
  --pp-gray: #6E6E6E;
  --pp-bai: #2E4F6B;
  --pp-cool: #EDF0F2;
  background-color: var(--pp-paper);
  color: var(--pp-ink);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
}

.page-products .page-rule {
  padding: 18px 20px 0;
}

.page-products .course-line {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--pp-gray);
}

.page-products .course-line a {
  color: var(--pp-navy);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.page-products .course-line a:hover {
  border-color: var(--pp-orange);
}

.page-products .course-line__sep {
  color: var(--pp-line);
}

.page-products .course-line__current {
  color: var(--pp-ink);
  font-weight: 600;
}

.page-products .device-hero {
  position: relative;
  padding: 28px 20px 56px;
  overflow: hidden;
}

.page-products .device-hero::before {
  content: "LDP";
  position: absolute;
  top: 8px;
  right: -10px;
  font-family: var(--font-num);
  font-size: 110px;
  font-weight: 900;
  line-height: 1;
  color: rgba(163, 58, 43, 0.07);
  letter-spacing: -0.04em;
  pointer-events: none;
  z-index: 0;
}

.page-products .device-hero__grid {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 36px;
  max-width: var(--content-w);
  margin: 0 auto;
}

.page-products .device-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-products .phone-shell {
  position: relative;
  width: 180px;
  height: 366px;
  padding: 12px 8px;
  background: linear-gradient(140deg, var(--pp-navy) 0%, #1D3D5B 55%, var(--pp-bai) 100%);
  border-radius: 26px;
  border: 1px solid var(--pp-line);
  box-shadow: 14px 18px 0 rgba(22, 50, 74, 0.10), 0 10px 30px rgba(0, 0, 0, 0.14);
  transform: rotate(-3deg);
  transition: transform var(--transition), box-shadow var(--transition);
}

.page-products .phone-shell:hover {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: 18px 22px 0 rgba(228, 69, 43, 0.10), 0 14px 34px rgba(0, 0, 0, 0.16);
}

.page-products .phone-shell__screen {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 18px;
  background-color: var(--pp-paper);
}

.page-products .phone-shell__notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 16px;
  background: var(--pp-navy);
  border-radius: 0 0 12px 12px;
  z-index: 2;
}

.page-products .device-stage__caption {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--pp-line);
  font-size: 13px;
  color: var(--pp-gray);
  letter-spacing: 0.02em;
  text-align: center;
}

.page-products .download-panel {
  position: relative;
  padding: 28px 22px 26px;
  background: var(--pp-paper);
  border: 1px solid var(--pp-line);
  border-left: 4px solid var(--pp-orange);
  box-shadow: 10px 12px 0 rgba(230, 60, 40, 0.06);
}

.page-products .download-panel h1 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 5.4vw, 40px);
  line-height: 1.28;
  margin: 6px 0 14px;
  font-weight: 800;
}

.page-products .download-panel__lead {
  font-size: 15px;
  color: var(--pp-gray);
  margin-bottom: 24px;
}

.page-products .os-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.page-products .os-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 15px;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.page-products .os-btn--android {
  background: var(--pp-navy);
  color: var(--pp-paper);
  border: 1px solid var(--pp-navy);
}

.page-products .os-btn--android:hover {
  background: #1E4568;
  transform: translate(2px, -2px);
  box-shadow: 4px 6px 0 var(--pp-orange);
}

.page-products .os-btn--ios {
  background: var(--pp-ink);
  color: var(--pp-paper);
  border: 1px solid var(--pp-ink);
}

.page-products .os-btn--ios:hover {
  background: #333333;
  transform: translate(2px, -2px);
  box-shadow: 4px 6px 0 var(--pp-yellow);
}

.page-products .os-btn__icon {
  flex-shrink: 0;
}

.page-products .os-btn__meta {
  margin-left: auto;
  font-size: 12px;
  opacity: 0.75;
  font-family: var(--font-num);
}

.page-products .sys-req {
  margin-top: 8px;
}

.page-products .sys-req h2 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--pp-line);
  letter-spacing: 0.02em;
}

.page-products .sys-req__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 6px;
}

.page-products .sys-req__list li {
  font-size: 14px;
  color: var(--pp-gray);
  padding-left: 18px;
  position: relative;
}

.page-products .sys-req__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 2px;
  background: var(--pp-orange);
}

.page-products .release-notes {
  position: relative;
  padding: 52px 20px;
  background: var(--pp-cool);
  border-top: 4px solid var(--pp-orange);
  border-bottom: 1px solid var(--pp-line);
}

.page-products .release-notes::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 8px;
  background: var(--pp-yellow);
}

.page-products .release-notes__head {
  max-width: var(--content-w);
  margin: 0 auto 28px;
}

.page-products .release-notes__lead {
  max-width: 640px;
  font-size: 15px;
  color: var(--pp-gray);
}

.page-products .release-notes__grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: var(--content-w);
  margin: 0 auto;
}

.page-products .release-notes__visual {
  margin: 0;
  padding: 10px;
  background: var(--pp-paper);
  border: 1px solid var(--pp-line);
}

.page-products .release-notes__visual img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.page-products .release-notes__visual figcaption {
  font-size: 12px;
  color: var(--pp-gray);
  padding: 8px 4px 2px;
}

.page-products .release-notes__updates {
  display: grid;
  border-left: 3px solid var(--pp-orange);
}

.page-products .update-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--pp-line);
  background: var(--pp-paper);
}

.page-products .update-item:last-child {
  border-bottom: none;
}

.page-products .update-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}

.page-products .update-item .status-chip {
  flex-shrink: 0;
  margin-top: 2px;
}

.page-products .version-history {
  padding: 52px 20px;
}

.page-products .version-history__head {
  max-width: var(--content-w);
  margin: 0 auto 30px;
}

.page-products .version-history__head p:last-child {
  max-width: 560px;
  font-size: 15px;
  color: var(--pp-gray);
}

.page-products .version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: var(--content-w);
  margin: 0 auto;
}

.page-products .version-card {
  position: relative;
  padding: 20px 22px;
  background: var(--pp-paper);
  border: 1px solid var(--pp-line);
  border-top: 3px solid var(--pp-navy);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.page-products .version-card:hover {
  transform: translateY(-3px);
  border-color: var(--pp-orange);
  box-shadow: 8px 12px 0 rgba(228, 69, 43, 0.08);
}

.page-products .version-card--featured {
  border-top-color: var(--pp-orange);
  background: linear-gradient(180deg, #FBF6EF 0%, var(--pp-paper) 100%);
}

.page-products .version-card--offset {
  margin-left: 24px;
}

.page-products .version-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.page-products .version-card__num {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--pp-navy);
}

.page-products .version-card--featured .version-card__num {
  color: var(--pp-orange);
}

.page-products .version-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
}

.page-products .version-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 6px;
}

.page-products .version-card li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  color: var(--pp-gray);
}

.page-products .version-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 2px;
  background: var(--pp-yellow);
}

.page-products .version-history__more {
  max-width: var(--content-w);
  margin: 28px auto 0;
  font-size: 14px;
  color: var(--pp-gray);
}

.page-products .inline-link {
  color: var(--pp-orange);
  text-decoration: none;
  border-bottom: 1px solid var(--pp-orange);
  transition: background-color var(--transition);
}

.page-products .inline-link:hover {
  background: rgba(228, 69, 43, 0.10);
}

.page-products .download-guide {
  padding: 52px 20px;
  background: var(--pp-navy);
  color: var(--pp-paper);
}

.page-products .download-guide h2 {
  max-width: var(--content-w);
  margin: 0 auto 28px;
  font-family: var(--font-serif);
  font-size: clamp(22px, 4vw, 36px);
}

.page-products .download-guide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  max-width: var(--content-w);
  margin: 0 auto;
}

.page-products .guide-note {
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.04);
  border-left: 3px solid var(--pp-yellow);
}

.page-products .guide-note__index {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  color: var(--pp-yellow);
}

.page-products .guide-note h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
}

.page-products .guide-note p:last-child {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 237, 228, 0.72);
}

.page-products .guide-verify {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  max-width: var(--content-w);
  margin: 32px auto 0;
}

.page-products .guide-verify__qrcode {
  width: 120px;
  height: 120px;
  padding: 4px;
  border: 2px solid var(--pp-yellow);
}

.page-products .guide-verify__qrcode img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .guide-verify__text {
  text-align: center;
}

.page-products .guide-verify__tip {
  margin: 0 0 8px;
  font-size: 13px;
  color: rgba(244, 237, 228, 0.72);
}

.page-products .guide-verify__link {
  color: var(--pp-yellow);
  text-decoration: none;
  border-bottom: 1px solid var(--pp-yellow);
  font-size: 14px;
}

.page-products .guide-verify__link:hover {
  background: rgba(245, 184, 46, 0.12);
}

.page-products .guide-accordion {
  max-width: var(--content-w);
  margin: 28px auto 0;
  border: 1px solid rgba(214, 203, 185, 0.35);
}

.page-products .guide-accordion .accordion__trigger {
  width: 100%;
  padding: 14px 18px;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(214, 203, 185, 0.35);
  color: var(--pp-paper);
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-products .guide-accordion .accordion__arrow {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--pp-yellow);
  border-bottom: 2px solid var(--pp-yellow);
  transform: rotate(45deg);
  transition: transform var(--transition);
}

.page-products .guide-accordion .accordion__panel {
  padding: 16px 18px;
  font-size: 13px;
  color: rgba(244, 237, 228, 0.85);
}

.page-products .feature-overview {
  padding: 52px 20px;
  background: var(--pp-paper);
}

.page-products .feature-overview__head {
  max-width: var(--content-w);
  margin: 0 auto 28px;
}

.page-products .feature-overview__head p:last-child {
  font-size: 15px;
  color: var(--pp-gray);
}

.page-products .feature-overview > img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
  max-width: var(--content-w);
  margin: 0 auto 36px;
  border: 1px solid var(--pp-line);
  box-shadow: 12px 16px 0 rgba(22, 50, 74, 0.08);
}

.page-products .feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: var(--content-w);
  margin: 0 auto;
}

.page-products .feature-item {
  position: relative;
  padding: 20px;
  background: var(--pp-paper);
  border: 1px solid var(--pp-line);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-products .feature-item:hover {
  border-color: var(--pp-orange);
  box-shadow: 6px 8px 0 rgba(228, 69, 43, 0.06);
}

.page-products .feature-item__tag {
  display: inline-block;
  margin-bottom: 10px;
  padding-bottom: 3px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pp-orange);
  border-bottom: 2px solid var(--pp-yellow);
}

.page-products .feature-item h3 {
  margin: 0 0 6px;
  font-size: 17px;
}

.page-products .feature-item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--pp-gray);
}

.page-products .usage-scene {
  position: relative;
  margin: 0;
}

.page-products .usage-scene img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center 35%;
}

.page-products .usage-scene__overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 30px 20px;
  background: linear-gradient(to top, rgba(22, 50, 74, 0.92) 0%, rgba(22, 50, 74, 0.55) 60%, transparent 100%);
  color: var(--pp-paper);
}

.page-products .usage-scene__title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: clamp(20px, 3.6vw, 32px);
  font-weight: 800;
}

.page-products .usage-scene__desc {
  margin: 0;
  font-size: 14px;
  color: rgba(244, 237, 228, 0.9);
}

.page-products .usage-scene__link {
  color: var(--pp-yellow);
  text-decoration: none;
  border-bottom: 1px solid var(--pp-yellow);
}

.page-products .usage-scene__link:hover {
  background: rgba(245, 184, 46, 0.12);
}

.page-products .scroll-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--pp-orange);
  border: 1px solid var(--pp-orange);
  border-radius: var(--radius);
  color: var(--pp-paper);
  font-size: 20px;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
  transition: transform var(--transition), background-color var(--transition), border-color var(--transition);
}

.page-products .scroll-top:hover {
  background: var(--pp-navy);
  border-color: var(--pp-navy);
  transform: translateY(-3px);
}

@media (min-width: 768px) {
  .page-products .device-hero {
    padding: 40px 32px 72px;
  }

  .page-products .device-hero__grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 48px;
    align-items: center;
  }

  .page-products .phone-shell {
    width: 240px;
    height: 488px;
  }

  .page-products .device-stage__caption {
    font-size: 14px;
  }

  .page-products .download-panel {
    padding: 40px 36px;
  }

  .page-products .os-actions {
    flex-direction: row;
  }

  .page-products .os-btn {
    flex: 1;
  }

  .page-products .os-btn__meta {
    font-size: 13px;
  }

  .page-products .release-notes__grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
    align-items: start;
  }

  .page-products .release-notes__visual img {
    height: 320px;
  }

  .page-products .version-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: stretch;
  }

  .page-products .version-card--featured {
    grid-column: span 2;
  }

  .page-products .version-card--offset {
    margin-left: 64px;
    margin-right: -24px;
  }

  .page-products .download-guide__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-products .guide-verify {
    flex-direction: row;
    justify-content: center;
    gap: 28px;
  }

  .page-products .guide-verify__text {
    text-align: left;
  }

  .page-products .feature-overview > img {
    height: 420px;
  }

  .page-products .feature-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-products .usage-scene img {
    height: 400px;
  }

  .page-products .usage-scene__overlay {
    padding: 44px 32px;
  }
}

@media (min-width: 1100px) {
  .page-products .usage-scene img {
    height: 500px;
  }

  .page-products .usage-scene__overlay {
    padding: 56px 48px;
  }
}