.page-products {
  --page-max: 1120px;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  overflow-x: hidden;
  padding-bottom: 3rem;
}

.page-products img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-products a {
  color: inherit;
}

/* ------------------------------------------------------------------
   首屏 / 平台总览
------------------------------------------------------------------- */
.page-products .products-lead {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: 1.25rem;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 2rem 1.25rem 3.25rem;
}

.page-products .products-lead__gutter {
  display: none;
}

.page-products .products-lead__frame {
  position: relative;
  flex: 1;
  border: 1px solid var(--color-border-glass);
  border-radius: calc(var(--radius) + 6px);
  padding: 1.75rem 1.25rem 2.25rem;
  background:
    linear-gradient(150deg, rgba(35, 43, 54, 0.72) 0%, rgba(18, 24, 32, 0.5) 100%);
  backdrop-filter: blur(14px);
  overflow: hidden;
}

.page-products .products-lead__frame::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 24px;
  width: 72px;
  height: 4px;
  background: var(--color-accent-cyan);
  border-radius: 0 0 4px 4px;
}

.page-products .products-lead__frame::after {
  content: "";
  position: absolute;
  right: 24px;
  bottom: -1px;
  width: 4px;
  height: 72px;
  background: var(--color-accent-orange);
  border-radius: 4px 4px 0 0;
}

.page-products .products-lead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin: 1.75rem 0 0.75rem;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
}

.page-products .products-lead__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.page-products .products-lead__meta span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-cyan);
}

.page-products .products-lead__title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.page-products .products-lead__desc {
  margin: 0 0 1.75rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 36rem;
}

.page-products .products-lead__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-products .products-lead__rail {
  display: none;
}

@media (min-width: 768px) {
  .page-products .products-lead {
    padding: 3.5rem 2rem 4.5rem;
  }

  .page-products .products-lead__gutter {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 56px;
    gap: 0.75rem;
    padding-top: 1rem;
    color: var(--color-text-secondary);
    font-size: 12px;
    letter-spacing: 0.18em;
  }

  .page-products .products-lead__gutter-num {
    font-size: 2rem;
    font-weight: 200;
    color: var(--color-accent-cyan);
    line-height: 1;
  }

  .page-products .products-lead__gutter-line {
    width: 1px;
    flex: 1;
    min-height: 80px;
    background: linear-gradient(180deg, var(--color-accent-cyan), var(--color-accent-orange));
  }

  .page-products .products-lead__gutter-txt {
    writing-mode: vertical-rl;
    font-size: 12px;
    letter-spacing: 0.28em;
  }

  .page-products .products-lead__frame {
    padding: 2.5rem 3rem 3rem;
  }

  .page-products .products-lead__title {
    font-size: clamp(2.5rem, 6vw, 3.6rem);
  }

  .page-products .products-lead__rail {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1rem 0;
    color: var(--color-text-secondary);
    font-size: 12px;
    letter-spacing: 0.18em;
    writing-mode: vertical-rl;
    gap: 1rem;
  }

  .page-products .products-lead__rail span::after {
    content: "";
    display: inline-block;
    width: 4px;
    height: 4px;
    margin-left: 6px;
    background: var(--color-accent-orange);
    border-radius: 50%;
  }
}

/* ------------------------------------------------------------------
   通用章节
------------------------------------------------------------------- */
.page-products .products-section {
  position: relative;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 2.5rem 1.25rem;
}

@media (min-width: 768px) {
  .page-products .products-section {
    padding: 4rem 2rem;
  }
}

.page-products .products-section__head {
  margin-bottom: 2rem;
}

.page-products .products-section__index {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border-glass);
  margin-bottom: 0.75rem;
}

.page-products .products-section__title {
  margin: 0.75rem 0 0.5rem;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.page-products .products-section__lead {
  margin: 0;
  max-width: 38rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

/* ------------------------------------------------------------------
   01 / 核心功能
------------------------------------------------------------------- */
.page-products .products-core {
  background-image:
    linear-gradient(var(--color-border-glass) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-glass) 1px, transparent 1px);
  background-size: 44px 44px;
}

.page-products .products-figure {
  margin: 0;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius);
}

.page-products .products-figure img {
  width: 100%;
  border-radius: 4px;
}

.page-products .products-figure figcaption {
  margin-top: 0.6rem;
  font-size: 14px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-products .products-figure figcaption::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--color-accent-orange);
  flex-shrink: 0;
}

.page-products .products-figure--wide {
  margin: 1.5rem 0 2rem;
}

.page-products .products-figure--route {
  margin: 2.5rem 0 0;
  max-width: 640px;
}

@media (min-width: 768px) {
  .page-products .products-figure--route {
    margin-left: auto;
  }
}

.page-products .products-core__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  .page-products .products-core__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

/* 功能卡片 */
.page-products .products-card {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-glass);
  background: rgba(35, 43, 54, 0.45);
  backdrop-filter: blur(10px);
  outline: none;
}

.page-products .products-card__inner {
  border-radius: inherit;
}

.page-products .products-card__face {
  padding: 1.5rem;
}

.page-products .products-card__face--back {
  border-top: 1px dashed var(--color-border-glass);
  padding-top: 1.25rem;
}

.page-products .products-card__num {
  font-size: 2.4rem;
  font-weight: 200;
  color: var(--color-accent-cyan);
  display: block;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.page-products .products-card svg {
  color: var(--color-accent-cyan);
  margin-bottom: 1rem;
}

.page-products .products-card__title {
  font-size: 1.15rem;
  line-height: 1.4;
  margin: 0 0 0.5rem;
  font-weight: 700;
}

.page-products .products-card__desc {
  margin: 0;
  color: var(--color-text-secondary);
  line-height: 1.65;
  font-size: 0.95rem;
}

.page-products .products-card__face--back p {
  margin: 0;
  color: var(--color-text-primary);
  line-height: 1.7;
  font-size: 0.95rem;
}

/* 桌面端：悬停翻转 */
@media (hover: hover) and (min-width: 900px) {
  .page-products .products-card {
    perspective: 1200px;
    max-width: 100%;
  }

  .page-products .products-card__inner {
    position: relative;
    min-height: 300px;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.7s var(--ease);
  }

  .page-products .products-card:hover .products-card__inner,
  .page-products .products-card:focus .products-card__inner,
  .page-products .products-card:focus-within .products-card__inner {
    transform: rotateY(180deg);
  }

  .page-products .products-card__face {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    backface-visibility: hidden;
    border-radius: var(--radius);
    background: rgba(35, 43, 54, 0.55);
  }

  .page-products .products-card__face--back {
    transform: rotateY(180deg);
    border-top: none;
    background: rgba(18, 24, 32, 0.75);
  }
}

/* ------------------------------------------------------------------
   02 / 下载中心
------------------------------------------------------------------- */
.page-products .products-download {
  border-top: 1px solid var(--color-border-glass);
  border-bottom: 1px solid var(--color-border-glass);
}

.page-products .products-download__layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 768px) {
  .page-products .products-download__layout {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
  }

  .page-products .products-download__content {
    flex: 1 1 58%;
  }

  .page-products .products-download__visual {
    flex: 1 1 42%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }
}

.page-products .products-download__meta {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.page-products .products-download__meta-item {
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  background: rgba(255, 255, 255, 0.03);
}

.page-products .products-download__meta-label {
  display: block;
  font-size: 13px;
  color: var(--color-text-secondary);
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.page-products .products-download__meta-value {
  font-size: 1.05rem;
  font-weight: 700;
}

.page-products .products-download__actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
}

.page-products .products-download__ctl {
  position: relative;
  width: auto;
}

.page-products .products-download__ctl summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
}

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

.page-products .products-download__btn {
  background: linear-gradient(135deg, var(--color-accent-orange), #ff9a3d);
  color: #121820;
  border: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: calc(var(--radius) + 6px);
  box-shadow: 0 8px 24px rgba(255, 122, 0, 0.26);
  text-decoration: none;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-products .products-download__btn:hover,
.page-products .products-download__btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 122, 0, 0.38);
}

.page-products .products-download__bubble {
  margin-top: 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(255, 122, 0, 0.4);
  background: rgba(255, 122, 0, 0.1);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.6;
  max-width: 340px;
  animation: products-pop 0.3s var(--ease);
}

@keyframes products-pop {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-products .products-download__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 30rem;
}

.page-products .products-figure--cycle {
  max-width: 240px;
  margin: 0 auto;
}

.page-products .products-download__stripe {
  width: 100%;
  height: 4px;
  max-width: 260px;
  background: linear-gradient(90deg, var(--color-accent-cyan), var(--color-accent-purple), var(--color-accent-orange));
  border-radius: 4px;
  opacity: 0.7;
}

/* ------------------------------------------------------------------
   03 / 登录指引
------------------------------------------------------------------- */
.page-products .products-guide__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

@media (min-width: 700px) {
  .page-products .products-guide__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

.page-products .products-guide__step {
  position: relative;
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem 1.5rem;
  background: rgba(35, 43, 54, 0.4);
  overflow: hidden;
}

.page-products .products-guide__step::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 48px;
  height: 3px;
  background: var(--color-accent-cyan);
  border-radius: 0 0 0 4px;
}

.page-products .products-guide__step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: 10px;
  background: rgba(0, 184, 212, 0.14);
  color: var(--color-accent-cyan);
  margin-bottom: 1rem;
}

.page-products .products-guide__step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.page-products .products-guide__step p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.page-products .products-guide__upgrade {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border: 1px solid rgba(123, 97, 255, 0.35);
  border-radius: calc(var(--radius) + 6px);
  padding: 1.5rem;
  background:
    linear-gradient(145deg, rgba(123, 97, 255, 0.12), rgba(18, 24, 32, 0.4));
  backdrop-filter: blur(12px);
}

@media (min-width: 700px) {
  .page-products .products-guide__upgrade {
    flex-direction: row;
    align-items: flex-start;
    gap: 2rem;
    padding: 2rem;
  }
}

.page-products .products-guide__upgrade-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--color-accent-purple);
  color: #ffffff;
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 1rem;
  flex-shrink: 0;
}

.page-products .products-guide__upgrade-content h3 {
  margin: 0 0 0.6rem;
  font-size: 1.3rem;
}

.page-products .products-guide__upgrade-content p {
  margin: 0 0 0.9rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.page-products .products-guide__upgrade-content ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-products .products-guide__upgrade-content li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
  line-height: 1.55;
}

.page-products .products-guide__upgrade-content li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-purple);
  margin-top: 0.55rem;
  flex-shrink: 0;
}

/* ------------------------------------------------------------------
   04 / 资料库检索
------------------------------------------------------------------- */
.page-products .products-search__layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 900px) {
  .page-products .products-search__layout {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
  }

  .page-products .products-search__panel {
    flex: 1 1 52%;
    min-width: 0;
  }

  .page-products .products-search__figures {
    flex: 1 1 48%;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: end;
    gap: 1rem;
    min-width: 0;
  }
}

.page-products .products-search__panel {
  border: 1px solid var(--color-border-glass);
  border-radius: calc(var(--radius) + 8px);
  padding: 1.5rem;
  background: rgba(35, 43, 54, 0.45);
  backdrop-filter: blur(10px);
}

@media (min-width: 700px) {
  .page-products .products-search__panel {
    padding: 2rem;
  }
}

.page-products .products-search__bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius);
  padding: 0 1rem;
  background: rgba(18, 24, 32, 0.6);
  transition: border-color 0.3s var(--ease);
}

.page-products .products-search__bar:focus-within {
  border-color: var(--color-accent-cyan);
}

.page-products .products-search__bar svg {
  color: var(--color-accent-cyan);
  flex-shrink: 0;
}

.page-products .products-search__bar input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-size: 1rem;
  padding: 0.95rem 0;
  outline: none;
  font-family: inherit;
}

.page-products .products-search__bar input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.7;
}

.page-products .products-search__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0 1rem;
}

.page-products .products-search__stat {
  font-size: 13px;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-glass);
  border-radius: 20px;
  padding: 0.35rem 0.8rem;
}

.page-products .products-search__stat strong {
  color: var(--color-accent-orange);
  font-weight: 800;
  font-size: 15px;
}

.page-products .products-search__hints {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.page-products .products-search__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.page-products .products-search__note a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 184, 212, 0.4);
}

.page-products .products-search__figures {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-products .products-figure--shelf,
.page-products .products-figure--lens {
  margin: 0;
}

/* ------------------------------------------------------------------
   继续探索
------------------------------------------------------------------- */
.page-products .products-more {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 0;
}

@media (min-width: 768px) {
  .page-products .products-more {
    padding: 4rem 2rem 0;
  }
}

.page-products .products-more__title {
  font-size: 1.4rem;
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.page-products .products-more__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 700px) {
  .page-products .products-more__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

.page-products .products-more__card {
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.03);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-products .products-more__card:hover,
.page-products .products-more__card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--color-accent-cyan);
  background: rgba(0, 184, 212, 0.07);
}

.page-products .products-more__card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-bg-secondary);
  color: var(--color-accent-orange);
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
}

.page-products .products-more__card-text {
  flex: 1;
  font-weight: 600;
  font-size: 0.98rem;
}

.page-products .products-more__card-arrow {
  color: var(--color-text-secondary);
  transition: transform 0.3s var(--ease), color 0.3s var(--ease);
}

.page-products .products-more__card:hover .products-more__card-arrow {
  transform: translateX(4px);
  color: var(--color-accent-cyan);
}

/* 窄屏安全 */
@media (max-width: 480px) {
  .page-products .products-lead__meta {
    flex-direction: column;
    gap: 0.4rem;
  }

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

  .page-products .products-download__btn {
    width: 100%;
  }

  .page-products .products-search__figures {
    gap: 1rem;
  }
}