.page-products {
  background: var(--color-paper);
  overflow-x: hidden;
}

/* ===== HERO 首屏 ===== */
.page-products .hero {
  background: var(--color-ink);
  color: var(--color-card);
  position: relative;
  overflow: hidden;
}

.page-products .hero::before {
  content: "";
  position: absolute;
  top: 10%;
  right: -18%;
  width: 60%;
  height: 460px;
  background: repeating-linear-gradient(
    115deg,
    transparent 0 14px,
    rgba(255, 107, 53, 0.22) 14px 16px,
    transparent 16px 32px,
    rgba(230, 57, 70, 0.14) 32px 34px
  );
  transform: rotate(12deg);
  opacity: 0.4;
  pointer-events: none;
}

.page-products .hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 36px;
  background: var(--color-paper);
  clip-path: polygon(0 0, 75% 0, 100% 100%, 0 100%);
  z-index: 2;
}

.page-products .hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
  padding-top: 2.5rem;
  padding-bottom: 4.25rem;
}

.page-products .hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-orange);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 1.25rem;
}

.page-products .hero__title {
  color: var(--color-card);
  font-family: var(--font-title);
  font-size: 1.85rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-top: 0.75rem;
}

.page-products .hero__lead {
  color: rgba(253, 252, 250, 0.78);
  line-height: 1.75;
  margin-top: 1rem;
  max-width: 34em;
}

.page-products .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* 面包屑深色适配 */
.page-products .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin-bottom: 0;
}

.page-products .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(253, 252, 250, 0.35);
  margin-right: 0.4rem;
}

.page-products .breadcrumb__link {
  color: rgba(253, 252, 250, 0.65);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-products .breadcrumb__link:hover {
  color: var(--color-orange);
}

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

/* 手机模型 */
.page-products .hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-products .phone-model {
  position: relative;
  width: min(230px, 68vw);
  margin-inline: auto;
}

.page-products .phone-model__frame {
  position: relative;
  padding: 10px;
  background: var(--color-ink);
  border: 3px solid var(--color-slate);
  border-radius: 34px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 24px 48px -24px rgba(0, 0, 0, 0.75);
}

.page-products .phone-model__screen {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 24px;
  object-fit: cover;
  aspect-ratio: 1 / 2;
}

.page-products .phone-model__notch {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 84px;
  height: 16px;
  background: var(--color-ink);
  border-radius: 12px;
  z-index: 1;
}

.page-products .phone-model__badge {
  position: absolute;
  right: 14px;
  bottom: 14px;
  background: var(--color-orange);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  z-index: 1;
}

.page-products .phone-model__caption {
  margin-top: 0.75rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--color-orange);
}

/* ===== 章节基础 ===== */
.page-products .section {
  padding: 4rem 0;
}

.page-products .section--dark {
  background: var(--color-ink);
  color: var(--color-card);
  padding: 4.5rem 0;
}

.page-products .section--slate {
  background: var(--color-slate);
  color: var(--color-card);
  padding: 4.5rem 0;
}

.page-products .section--dark .section__title,
.page-products .section--slate .section__title {
  color: var(--color-card);
}

.page-products .section--dark .section__desc,
.page-products .section--slate .section__desc {
  color: rgba(253, 252, 250, 0.7);
}

.page-products .section--dark .coordinate,
.page-products .section--slate .coordinate {
  color: var(--color-orange);
}

.page-products .section__head {
  max-width: 640px;
}

.page-products .section__head .coordinate {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}

.page-products .section__title {
  font-family: var(--font-title);
  font-size: 1.6rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.page-products .section__desc {
  margin-top: 0.5rem;
  line-height: 1.7;
  font-size: 0.95rem;
}

/* ===== 核心功能 ===== */
.page-products .feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.page-products .feature-card {
  position: relative;
  overflow: hidden;
  background: var(--color-card);
  border: 1px solid rgba(26, 29, 38, 0.1);
  border-left: 4px solid var(--color-orange);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem 1.5rem 1.5rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.page-products .feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-style: solid;
  border-width: 0 28px 28px 0;
  border-color: transparent var(--color-orange) transparent transparent;
  opacity: 0.16;
}

.page-products .feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 36px -24px rgba(26, 29, 38, 0.45);
}

.page-products .feature-card__icon {
  width: 54px;
  height: 54px;
  margin-bottom: 1.1rem;
  display: grid;
  place-items: center;
  background: var(--color-ink);
  border-radius: 12px;
  color: var(--color-orange);
  transition: transform 0.5s var(--ease-out);
}

.page-products .feature-card:hover .feature-card__icon {
  transform: rotateY(180deg);
}

.page-products .feature-card__icon svg {
  width: 28px;
  height: 28px;
}

.page-products .feature-card__title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.4;
}

.page-products .feature-card__desc {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-slate);
}

.page-products .feature-illustration {
  margin-top: 2rem;
  padding: 1.25rem;
  background: var(--color-ink);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .feature-illustration img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: calc(var(--radius) - 2px);
}

.page-products .feature-illustration__caption {
  margin-top: 0.75rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: rgba(253, 252, 250, 0.7);
}

/* ===== 版本与更新记录 ===== */
.page-products .version-timeline {
  position: relative;
  margin-top: 2.5rem;
  padding-left: 1.5rem;
  border-left: 2px solid rgba(201, 162, 39, 0.45);
}

.page-products .version-item {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1rem;
  margin-bottom: 1rem;
}

.page-products .version-item::before {
  content: "";
  position: absolute;
  left: -1.63rem;
  top: 1.5rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.22);
}

.page-products .version-item--current {
  border-color: rgba(255, 107, 53, 0.45);
}

.page-products .version-item--current::before {
  background: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.22);
}

.page-products .version-item__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-ink);
  background: var(--color-orange);
  border-radius: 3px;
  padding: 3px 8px;
  margin-bottom: 0.75rem;
}

.page-products .version-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.75rem;
}

.page-products .version-item__title {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-card);
}

.page-products .version-item__meta {
  font-size: 0.8rem;
  color: rgba(253, 252, 250, 0.55);
  font-family: var(--font-mono);
}

.page-products .version-item__changes {
  margin: 0.9rem 0 0;
  padding-left: 1.1rem;
}

.page-products .version-item__changes li {
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(253, 252, 250, 0.78);
  margin-top: 0.35rem;
}

.page-products .version-details {
  margin-top: 0.5rem;
}

.page-products .version-details__summary {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-orange);
  cursor: pointer;
  padding: 0.6rem 0.25rem;
  list-style: none;
  transition: opacity var(--transition-fast);
}

.page-products .version-details__summary:hover {
  opacity: 0.8;
}

.page-products .version-details__summary::-webkit-details-marker {
  display: none;
}

.page-products .version-details__summary::before {
  content: "＋";
  margin-right: 0.4rem;
  font-family: var(--font-mono);
}

.page-products .version-details[open] .version-details__summary::before {
  content: "－";
}

.page-products .version-details__list {
  margin-top: 0.5rem;
}

.page-products .version-more {
  margin-top: 2rem;
  text-align: center;
}

/* ===== 下载指南 ===== */
.page-products .download-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: center;
  margin-top: 2.5rem;
  padding: 1.75rem;
  background: var(--color-card);
  border: 2px solid var(--color-gold);
  border-radius: 10px;
  position: relative;
}

.page-products .download-panel::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px dashed rgba(201, 162, 39, 0.4);
  border-radius: 6px;
  pointer-events: none;
}

.page-products .download-panel__qr {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-products .download-panel__qr img {
  display: block;
  width: 170px;
  max-width: 100%;
  height: auto;
  margin-inline: auto;
  border-radius: 8px;
  box-shadow: 0 10px 24px -16px rgba(26, 29, 38, 0.5);
}

.page-products .download-panel__qr-tip {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-slate);
}

.page-products .download-panel__info {
  position: relative;
  z-index: 1;
}

.page-products .download-panel__title {
  font-family: var(--font-title);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-ink);
}

.page-products .download-panel__desc {
  margin-top: 0.65rem;
  line-height: 1.7;
  font-size: 0.92rem;
  color: var(--color-slate);
}

.page-products .download-panel__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
}

.page-products .btn--download {
  animation: products-pulse 2.4s ease-in-out infinite;
}

.page-products .sys-req {
  position: relative;
  z-index: 1;
}

.page-products .sys-req__summary {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-slate);
  cursor: pointer;
  padding: 0.5rem 0;
  list-style: none;
}

.page-products .sys-req__summary::-webkit-details-marker {
  display: none;
}

.page-products .sys-req__summary::before {
  content: "▸ ";
  color: var(--color-orange);
}

.page-products .sys-req[open] .sys-req__summary::before {
  content: "▾ ";
}

.page-products .sys-req__list {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--color-slate);
}

.page-products .download-panel__note {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: rgba(26, 29, 38, 0.55);
  line-height: 1.6;
}

@keyframes products-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.55);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(255, 107, 53, 0);
  }
}

/* ===== 数据服务说明 ===== */
.page-products .data-service__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-top: 2.5rem;
}

.page-products .data-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
}

.page-products .data-stat {
  text-align: center;
  padding: 1.25rem 0.75rem;
  background: rgba(255, 255, 255, 0.07);
  border-top: 4px solid var(--color-orange);
  border-radius: var(--radius);
}

.page-products .data-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.05;
  color: var(--color-orange);
}

.page-products .data-stat__unit {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.82rem;
  color: rgba(253, 252, 250, 0.8);
}

.page-products .data-flow {
  background: var(--color-ink);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-products .data-service__note {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(253, 252, 250, 0.75);
}

/* ===== 安全隐私保障 ===== */
.page-products .privacy-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.page-products .privacy-panel__visual {
  background: var(--color-slate);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-products .privacy-panel__content {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.75rem;
}

.page-products .privacy-panel__content .section__head {
  margin-bottom: 0.75rem;
}

.page-products .privacy-panel__lead {
  margin-top: 0.5rem;
  line-height: 1.8;
  font-size: 0.92rem;
  color: rgba(253, 252, 250, 0.8);
}

.page-products .permission-list {
  list-style: none;
  margin: 1.25rem 0 1.5rem;
  padding: 0;
}

.page-products .permission-list__item {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.12);
}

.page-products .permission-list__item:last-child {
  border-bottom: 0;
}

.page-products .permission-list__tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-gold);
  background: rgba(201, 162, 39, 0.16);
  padding: 2px 8px;
  border-radius: 3px;
}

.page-products .permission-list__desc {
  font-size: 0.88rem;
  color: rgba(253, 252, 250, 0.85);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-products .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .data-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .page-products .section {
    padding: 5.5rem 0;
  }

  .page-products .section--dark,
  .page-products .section--slate {
    padding: 6rem 0;
  }

  .page-products .hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
    padding-top: 3.5rem;
    padding-bottom: 5rem;
  }

  .page-products .hero__title {
    font-size: 2.6rem;
    line-height: 1.25;
  }

  .page-products .hero__lead {
    font-size: 1.02rem;
  }

  .page-products .phone-model {
    width: 280px;
  }

  .page-products .section__title {
    font-size: 2rem;
  }

  .page-products .download-panel {
    grid-template-columns: 240px 1fr;
    padding: 2rem;
    gap: 2rem;
  }

  .page-products .download-panel__qr img {
    width: 200px;
  }

  .page-products .data-service__grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: 2.5rem;
  }

  .page-products .privacy-panel {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .page-products .feature-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .feature-illustration {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
  }

  .page-products .feature-illustration__caption {
    margin-top: 0;
    text-align: left;
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(253, 252, 250, 0.8);
  }

  .page-products .data-stats {
    grid-template-columns: 1fr;
  }

  .page-products .data-stat {
    text-align: left;
    padding: 1.25rem 1.5rem;
  }
}