.page-products {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== 首屏 ===== */
.page-products .prod-hero {
  position: relative;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 24px 0 0;
  overflow: hidden;
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
}

.page-products .prod-hero .container {
  position: relative;
}

.page-products .prod-hero .breadcrumb {
  margin-bottom: 32px;
}

.page-products .prod-hero__layout {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: center;
}

.page-products .prod-hero__art {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.page-products .prod-hero__icon-zone {
  position: relative;
  padding: 14px;
}

.page-products .prod-hero__icon-zone::before {
  content: "";
  position: absolute;
  inset: 6px;
  background: linear-gradient(135deg, var(--color-accent), #E8522A);
  transform: rotate(-7deg);
  border-radius: 32px;
  box-shadow: var(--shadow-accent);
}

.page-products .prod-hero__icon-zone::after {
  content: "";
  position: absolute;
  inset: -10px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 40px;
  pointer-events: none;
}

.page-products .prod-hero__icon {
  position: relative;
  width: 200px;
  height: 200px;
  max-width: 200px;
  border-radius: 28px;
  object-fit: cover;
  display: block;
  transform: rotate(3deg);
}

.page-products .prod-hero__batch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
}

.page-products .prod-hero__slogan {
  margin: 0 0 8px;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  font-weight: 600;
}

.page-products .prod-hero__body {
  text-align: center;
}

.page-products .prod-hero__body h1 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(44px, 10vw, 72px);
  line-height: 1.05;
  color: var(--color-heading);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.page-products .prod-hero__lead {
  margin: 0 auto 22px;
  max-width: 620px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
}

.page-products .prod-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.page-products .prod-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-heading);
  font-size: 13px;
  font-weight: 500;
}

.page-products .prod-hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 36px;
  padding: 20px 0 28px;
  border-top: 2px solid var(--color-accent);
}

.page-products .prod-stat {
  padding: 14px 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  text-align: center;
}

.page-products .prod-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1.1;
  color: var(--color-heading);
}

.page-products .prod-stat span {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ===== 功能区布局 ===== */
.page-products .prod-features {
  padding: 52px 0 0;
  background: var(--color-bg);
}

.page-products .prod-features__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

.page-products .prod-quick {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 24px;
  overflow: hidden;
}

.page-products .prod-quick::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-success));
}

.page-products .prod-quick__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--color-heading);
}

.page-products .prod-quick__list {
  margin: 0 0 22px;
}

.page-products .prod-quick__list div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  padding: 10px 0;
}

.page-products .prod-quick__list dt {
  font-size: 13px;
  color: var(--color-text-muted);
}

.page-products .prod-quick__list dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--color-heading);
}

.page-products .prod-section-head {
  margin-bottom: 28px;
}

.page-products .prod-section-head .section-title {
  margin-bottom: 10px;
}

.page-products .prod-section-head p {
  margin: 0;
  max-width: 480px;
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== 功能卡片 ===== */
.page-products .prod-feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-bottom: 28px;
}

.page-products .prod-feature {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.page-products .prod-feature:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
}

.page-products .prod-feature__stage {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--color-bg-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), 0 100%);
}

.page-products .prod-feature__stage::before {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: -16px;
  height: 34px;
  background: rgba(255, 107, 53, 0.18);
  transform: skewY(-4deg);
  pointer-events: none;
  z-index: 2;
}

.page-products .prod-feature__stage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  position: relative;
  z-index: 1;
}

.page-products .prod-feature__body {
  padding: 22px 22px 26px;
}

.page-products .prod-feature__index {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.page-products .prod-feature__body h3 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--color-heading);
  line-height: 1.3;
}

.page-products .prod-feature__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}

/* ===== 长期跟队横幅 ===== */
.page-products .prod-track {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 26px;
  background: linear-gradient(120deg, var(--color-accent), #E8522A);
  color: #ffffff;
  clip-path: polygon(0 0, 100% 0, calc(100% - 22px) 100%, 0 100%);
}

.page-products .prod-track__label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 6px;
}

.page-products .prod-track h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.2;
  color: #ffffff;
}

.page-products .prod-track p {
  margin: 0;
  max-width: 560px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.92);
}

.page-products .prod-track__data {
  text-align: right;
  flex-shrink: 0;
}

.page-products .prod-track__big {
  display: block;
  font-family: var(--font-display);
  font-size: 52px;
  line-height: 0.9;
  color: #ffffff;
}

.page-products .prod-track__unit {
  font-size: 12px;
  letter-spacing: 0.06em;
  opacity: 0.9;
}

/* ===== 版本历程 ===== */
.page-products .prod-versions {
  position: relative;
  padding: 56px 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  overflow: hidden;
}

.page-products .prod-versions::before {
  content: "3137";
  position: absolute;
  right: -20px;
  top: 24px;
  font-family: var(--font-display);
  font-size: 110px;
  line-height: 1;
  color: rgba(255, 255, 255, 0.03);
  pointer-events: none;
  user-select: none;
}

.page-products .prod-versions .container {
  position: relative;
}

.page-products .prod-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-products .prod-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-border) 70%);
}

.page-products .prod-timeline__item {
  position: relative;
  padding-left: 34px;
  margin-bottom: 18px;
}

.page-products .prod-timeline__marker {
  position: absolute;
  left: 0;
  top: 20px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 4px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.page-products .prod-timeline__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 18px 20px;
  transition: border-color var(--transition-base);
}

.page-products .prod-timeline__card[open] {
  border-color: rgba(255, 107, 53, 0.45);
}

.page-products .prod-timeline__card summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-products .prod-timeline__card summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-timeline__ver {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-accent);
  line-height: 1.1;
}

.page-products .prod-timeline__title {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--color-heading);
  line-height: 1.3;
}

.page-products .prod-timeline__year {
  margin-left: auto;
  font-size: 13px;
  color: var(--color-text-muted);
}

.page-products .prod-timeline__chevron {
  display: block;
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.page-products .prod-timeline__card[open] .prod-timeline__chevron {
  transform: rotate(180deg);
}

.page-products .prod-timeline__body {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.page-products .prod-timeline__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}

/* ===== 下载方式 ===== */
.page-products .prod-download {
  padding: 52px 0;
  background: var(--color-bg-deep);
  border-top: 1px solid var(--color-border);
}

.page-products .prod-download__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-products .prod-download__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 28px 24px;
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.page-products .prod-download__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-products .prod-download__os {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 15px;
  padding: 7px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.page-products .prod-download__os--ios {
  background: rgba(0, 208, 132, 0.12);
  color: var(--color-success);
  border: 1px solid rgba(0, 208, 132, 0.4);
}

.page-products .prod-download__os--android {
  background: rgba(255, 107, 53, 0.12);
  color: var(--color-accent);
  border: 1px solid rgba(255, 107, 53, 0.4);
}

.page-products .prod-download__card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--color-heading);
}

.page-products .prod-download__card p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}

.page-products .prod-download__card .btn {
  width: 100%;
  max-width: 220px;
}

.page-products .prod-download__card--qr img {
  display: block;
  width: 180px;
  height: 180px;
  margin: 0 auto 18px;
  padding: 12px;
  background: #ffffff;
  border-radius: 12px;
}

.page-products .prod-download__note {
  margin-top: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
}

.page-products .prod-download__note a {
  color: var(--color-accent);
  text-decoration: none;
}

/* ===== 常见用途 ===== */
.page-products .prod-usage {
  padding: 52px 0;
  background: var(--color-bg);
}

.page-products .prod-usage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-products .prod-usage__item {
  position: relative;
  background: var(--color-surface);
  border-left: 5px solid var(--color-accent);
  padding: 24px 22px;
}

.page-products .prod-usage__step {
  display: block;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.page-products .prod-usage__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--color-heading);
  line-height: 1.3;
}

.page-products .prod-usage__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}

/* ===== 保障与延伸 ===== */
.page-products .prod-assurance {
  padding: 52px 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.page-products .prod-assurance__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-products .prod-assurance__item {
  padding: 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.page-products .prod-assurance__mark {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--color-success);
  letter-spacing: 0.05em;
}

.page-products .prod-assurance__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}

.page-products .prod-assurance__link {
  margin: 28px 0 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

.page-products .prod-assurance__link a {
  color: var(--color-accent);
  text-decoration: none;
}

/* ===== 平板及以上 ===== */
@media (min-width: 720px) {
  .page-products .prod-hero__layout {
    flex-direction: row;
    align-items: center;
    gap: 52px;
  }

  .page-products .prod-hero__art {
    flex: 0 0 260px;
  }

  .page-products .prod-hero__body {
    flex: 1;
    text-align: left;
  }

  .page-products .prod-hero__lead {
    margin-left: 0;
    margin-right: 0;
  }

  .page-products .prod-hero__tags {
    justify-content: flex-start;
  }

  .page-products .prod-hero__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .prod-features__layout {
    grid-template-columns: 280px 1fr;
    gap: 44px;
  }

  .page-products .prod-feature-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .page-products .prod-download__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .prod-download__card--qr {
    grid-column: 1 / -1;
  }

  .page-products .prod-usage__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .prod-assurance__grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 1080px) {
  .page-products .prod-feature-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-products .prod-feature__stage {
    height: 280px;
  }

  .page-products .prod-feature--stats {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-products .prod-feature--stats .prod-feature__stage {
    height: 260px;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 22px));
  }

  .page-products .prod-feature--stats .prod-feature__body {
    padding: 32px;
  }

  .page-products .prod-download__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .page-products .prod-download__card--qr {
    grid-column: auto;
  }

  .page-products .prod-download__card--qr img {
    width: 200px;
    height: 200px;
  }

  .page-products .prod-usage__grid {
    grid-template-columns: 1fr 1fr 1fr 1fr;
  }

  .page-products .prod-usage__item {
    padding: 28px 24px;
  }

  .page-products .prod-assurance__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}