.page-products {
  --product-line: rgba(176, 196, 222, 0.22);
  --product-gold-glow: rgba(245, 181, 0, 0.18);
}

.page-products .stable-section,
.page-products .changelog-section,
.page-products .switch-section,
.page-products .solutions-section,
.page-products .security-section {
  position: relative;
  padding: var(--space-5) 0;
  overflow: hidden;
}

@media (min-width: 768px) {
  .page-products .stable-section,
  .page-products .changelog-section,
  .page-products .switch-section,
  .page-products .solutions-section,
  .page-products .security-section {
    padding: var(--space-7) 0;
  }
}

.page-products .section__head {
  margin-bottom: var(--space-4);
}

.page-products .section__head h2 {
  margin: 0;
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  line-height: 1.25;
  color: var(--color-white);
}

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

/* ===== S.01 当前稳定版 ===== */
.page-products .stable-section {
  background:
    radial-gradient(circle at 85% 18%, rgba(245, 181, 0, 0.14), transparent 44%),
    linear-gradient(180deg, var(--color-primary-deep) 0%, var(--color-primary) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-products .stable-section::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 6px;
  width: 100%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-accent) 62%, transparent 100%);
  opacity: 0.88;
  pointer-events: none;
}

.page-products .stable-section__container {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

@media (min-width: 900px) {
  .page-products .stable-section__container {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: var(--space-6);
  }
}

.page-products .stable-section__info {
  position: relative;
  padding: var(--space-4);
  background: var(--color-glass);
  border: 1px solid var(--product-gold-glow);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(6px);
}

@media (min-width: 768px) {
  .page-products .stable-section__info {
    padding: var(--space-5);
  }
}

.page-products .stable-section__info::before {
  content: "";
  position: absolute;
  top: 0;
  right: 28px;
  width: 64px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-accent));
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  pointer-events: none;
}

.page-products .stable-section__info .section__number {
  display: inline-block;
}

.page-products .stable-section__info h1 {
  margin: var(--space-1) 0 0;
  font-size: clamp(1.8rem, 5.4vw, 3rem);
  line-height: 1.2;
  color: var(--color-white);
  letter-spacing: 0.01em;
}

.page-products .stable-section__lead {
  margin: var(--space-3) 0 0;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-products .stable-section__version {
  margin: var(--space-4) 0 var(--space-2);
}

.page-products .stable-section__version-text {
  display: block;
  margin-top: var(--space-1);
  font-size: clamp(2.6rem, 10vw, 5.2rem);
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.page-products .stable-section__meta {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px dashed var(--product-line);
  color: var(--color-muted);
  font-size: 0.82rem;
}

.page-products .stable-section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-products .stable-section__note {
  margin: var(--space-3) 0 0;
  color: var(--color-muted);
  font-size: 0.84rem;
  line-height: 1.6;
}

.page-products .stable-section__visual .image-frame {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  transform: rotate(0.4deg);
}

@media (min-width: 900px) {
  .page-products .stable-section__visual .image-frame {
    transform: rotate(1.2deg);
  }
}

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

/* ===== S.02 版本更新记录 ===== */
.page-products .changelog-section {
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
}

.page-products .changelog-section::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold));
  pointer-events: none;
}

.page-products .changelog-layout {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-4);
}

@media (min-width: 960px) {
  .page-products .changelog-layout {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    gap: var(--space-6);
    align-items: start;
  }
}

.page-products .changelog-table__head {
  display: none;
  grid-template-columns: 96px 110px 104px minmax(0, 1fr) auto;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  color: var(--color-muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media (min-width: 720px) {
  .page-products .changelog-table__head {
    display: grid;
  }
}

.page-products .changelog-table__lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-products .version-row-item {
  margin: 0;
}

.page-products .version-row {
  background: var(--color-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
}

.page-products .version-row:hover {
  border-color: rgba(245, 181, 0, 0.45);
  background: rgba(255, 255, 255, 0.1);
}

.page-products .version-row[open] {
  border-color: rgba(245, 181, 0, 0.55);
  background: var(--color-glass-strong);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.page-products .version-row__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-1) var(--space-2);
  align-items: center;
  padding: var(--space-3);
  cursor: pointer;
  list-style: none;
}

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

.page-products .version-row__num {
  grid-column: 1;
  grid-row: 1;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-gold);
}

.page-products .version-row__arrow {
  grid-column: 2;
  grid-row: 1;
  justify-self: end;
  color: var(--color-muted);
  font-size: 1.4rem;
  line-height: 1;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.page-products .version-row[open] .version-row__arrow {
  transform: rotate(45deg);
  color: var(--color-gold);
}

.page-products .version-row__date {
  grid-column: 1;
  grid-row: 2;
  color: var(--color-muted);
  font-size: 0.8rem;
}

.page-products .version-row__type {
  grid-column: 2;
  grid-row: 2;
  justify-self: end;
}

.page-products .version-row__brief {
  grid-column: 1 / -1;
  grid-row: 3;
  color: var(--color-white);
  font-size: 0.9rem;
  line-height: 1.6;
  overflow-wrap: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (min-width: 720px) {
  .page-products .version-row__grid {
    grid-template-columns: 96px 110px 104px minmax(0, 1fr) auto;
    gap: var(--space-2) var(--space-3);
    padding: var(--space-3) var(--space-4);
  }

  .page-products .version-row__num {
    grid-column: 1;
    grid-row: 1;
    font-size: 1.02rem;
  }

  .page-products .version-row__date {
    grid-column: 2;
    grid-row: 1;
  }

  .page-products .version-row__type {
    grid-column: 3;
    grid-row: 1;
    justify-self: start;
  }

  .page-products .version-row__brief {
    grid-column: 4;
    grid-row: 1;
    -webkit-line-clamp: 1;
  }

  .page-products .version-row__arrow {
    grid-column: 5;
    grid-row: 1;
  }
}

.page-products .version-row__detail {
  padding: var(--space-3);
  border-top: 1px dashed var(--product-line);
}

.page-products .version-row__detail ul {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: var(--space-2);
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

.page-products .version-row__detail li::marker {
  color: var(--color-gold);
}

.page-products .changelog-table__note,
.page-products .archive-list__note,
.page-products .solutions-footnote,
.page-products .security-note {
  margin: 0;
  padding: var(--space-3) var(--space-4);
  border-left: 3px solid var(--color-gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

.page-products .changelog-table__note {
  margin-top: var(--space-4);
}

.page-products .changelog-table__note a,
.page-products .archive-list__note a,
.page-products .solutions-footnote a,
.page-products .security-note a {
  color: var(--color-link);
}

.page-products .changelog-aside {
  display: grid;
  gap: var(--space-4);
  align-content: start;
}

@media (min-width: 960px) {
  .page-products .changelog-aside {
    position: sticky;
    top: calc(var(--header-h) + var(--space-3));
  }
}

.page-products .changelog-aside .image-frame,
.page-products .switch-visual .image-frame {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-products .changelog-aside img,
.page-products .switch-visual img,
.page-products .solution-card__image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .changelog-aside__stats {
  margin: 0;
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
}

.page-products .changelog-aside__stats > div {
  display: flex;
  flex-direction: column;
  padding-bottom: var(--space-2);
  border-bottom: 1px dashed var(--product-line);
}

.page-products .changelog-aside__stats > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .changelog-aside__stats dt {
  color: var(--color-muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.page-products .changelog-aside__stats dd {
  margin: 0;
}

.page-products .changelog-aside__stats .stat {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gold);
}

.page-products .changelog-aside__stats .stat-label {
  color: var(--color-muted);
  font-size: 0.78rem;
}

/* ===== S.03 切换站点记录 · 季度归档 ===== */
.page-products .switch-section {
  background:
    linear-gradient(90deg, rgba(245, 181, 0, 0.05) 0%, transparent 32%),
    var(--color-primary);
}

.page-products .switch-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-red) 0%, var(--color-gold) 35%, var(--color-green) 68%, var(--color-yellow) 100%);
  opacity: 0.6;
  pointer-events: none;
}

.page-products .switch-layout {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-4);
}

@media (min-width: 960px) {
  .page-products .switch-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: var(--space-6);
    align-items: start;
  }
}

.page-products .switch-visual {
  display: grid;
  gap: var(--space-3);
  align-content: start;
}

.page-products .switch-visual__note {
  margin: 0;
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-gold);
  color: var(--color-muted);
  font-size: 0.86rem;
  line-height: 1.75;
}

.page-products .archive-list {
  display: grid;
  gap: var(--space-2);
}

.page-products .archive-item {
  background: rgba(255, 255, 255, 0.05);
  border-left: 3px solid var(--color-gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.page-products .archive-item:hover {
  background: rgba(255, 255, 255, 0.09);
}

.page-products .archive-item[open] {
  background: rgba(255, 255, 255, 0.1);
}

.page-products .archive-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-1) var(--space-3);
  padding: var(--space-3);
  cursor: pointer;
  list-style: none;
}

.page-products .archive-item__head::-webkit-details-marker {
  display: none;
}

.page-products .archive-item__quarter {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--color-white);
}

.page-products .archive-item__count {
  flex: 1;
  text-align: right;
  color: var(--color-muted);
  font-size: 0.82rem;
}

.page-products .archive-item__toggle {
  color: var(--color-gold);
  font-size: 1.2rem;
  line-height: 1;
  transition: transform var(--transition-fast);
}

.page-products .archive-item[open] .archive-item__toggle {
  transform: rotate(45deg);
}

.page-products .archive-item__body {
  padding: 0 var(--space-3) var(--space-3);
}

.page-products .archive-item__list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: var(--space-2);
  color: var(--color-muted);
  font-size: 0.86rem;
  line-height: 1.7;
}

.page-products .archive-item__list li::marker {
  color: var(--color-gold);
}

.page-products .archive-list__note {
  margin-top: var(--space-2);
}

/* ===== S.04 解决方案 ===== */
.page-products .solutions-section {
  background: linear-gradient(180deg, var(--color-primary-deep) 0%, var(--color-primary) 100%);
}

.page-products .solutions-section::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 58%;
  height: 4px;
  background: linear-gradient(90deg, transparent, rgba(245, 181, 0, 0.45) 78%, var(--color-accent));
  pointer-events: none;
}

.page-products .solutions-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

@media (min-width: 900px) {
  .page-products .solutions-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

.page-products .solution-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.page-products .solution-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 181, 0, 0.5);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
}

.page-products .solution-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-products .solution-card__code {
  color: var(--color-muted);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

.page-products .solution-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-gold);
  background: linear-gradient(135deg, rgba(245, 181, 0, 0.22), rgba(255, 107, 53, 0.1));
}

.page-products .solution-card__icon svg {
  width: 26px;
  height: 26px;
}

.page-products .solution-card__title {
  margin: 0;
  font-size: 1.24rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.page-products .solution-card__desc {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.78;
}

.page-products .solution-card__points {
  list-style: none;
  margin: 0;
  padding: var(--space-2) 0 0;
  border-top: 1px dashed var(--product-line);
  display: grid;
  gap: var(--space-1);
}

.page-products .solution-card__points li {
  position: relative;
  padding-left: 18px;
  color: var(--color-muted);
  font-size: 0.84rem;
  line-height: 1.6;
}

.page-products .solution-card__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 2px;
  background: var(--color-gold);
}

.page-products .solution-card__image {
  margin-top: auto;
}

.page-products .solution-card__image img {
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.page-products .solution-card__band {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(245, 181, 0, 0.08);
  border-radius: var(--radius-sm);
}

.page-products .solution-card__band .mono {
  color: var(--color-gold);
  font-size: 0.78rem;
}

.page-products .solutions-footnote {
  margin-top: var(--space-5);
  border-left-color: var(--color-accent);
}

/* ===== S.05 下载安全说明 ===== */
.page-products .security-section {
  background:
    linear-gradient(135deg, rgba(46, 139, 87, 0.12), transparent 40%),
    var(--color-primary-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.page-products .security-section:target {
  box-shadow: inset 0 0 0 2px rgba(245, 181, 0, 0.4);
}

.page-products .security-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (min-width: 760px) {
  .page-products .security-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-products .security-item {
  position: relative;
  padding: var(--space-4);
  padding-top: var(--space-5);
  background: var(--color-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.page-products .security-item:hover {
  border-color: rgba(245, 181, 0, 0.35);
  transform: translateY(-2px);
}

.page-products .security-item__num {
  position: absolute;
  top: var(--space-2);
  left: var(--space-3);
  color: var(--color-gold);
  font-size: 0.88rem;
  opacity: 0.7;
}

.page-products .security-item__title {
  margin: 0 0 var(--space-1);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--color-white);
}

.page-products .security-item__desc {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.75;
}

.page-products .security-note {
  margin-top: var(--space-4);
  border-left-color: var(--color-green);
}