.page-products {
  --pd-accent-gradient: linear-gradient(90deg, var(--color-accent-orange), var(--color-accent-green));
  --pd-dashed-line: 1px dashed rgba(176, 184, 196, 0.25);
  position: relative;
  background: var(--color-bg);
  color: var(--color-text-light);
  overflow-x: hidden;
  padding-bottom: 2rem;
}

/* ===== Hero 首屏 ===== */
.pd-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: calc(var(--header-height) + 2rem) 1.5rem 3rem;
}
.pd-hero::before {
  content: "196";
  position: absolute;
  top: 4rem;
  right: -0.5rem;
  font-family: var(--font-display);
  font-size: clamp(7rem, 28vw, 14rem);
  line-height: 1;
  color: rgba(255, 255, 255, 0.035);
  pointer-events: none;
  z-index: 0;
}
.pd-hero__text {
  position: relative;
  z-index: 1;
}
.pd-hero__kicker {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-green);
  background: rgba(57, 255, 20, 0.06);
  border: 1px solid rgba(57, 255, 20, 0.28);
  padding: 0.4rem 0.75rem;
  margin-bottom: 1.25rem;
}
.pd-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 9vw, 5rem);
  line-height: 0.96;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin: 0 0 1.25rem;
}
.pd-hero__title::after {
  content: "";
  display: block;
  width: clamp(56px, 14vw, 110px);
  height: 6px;
  margin-top: 1rem;
  background: var(--pd-accent-gradient);
}
.pd-hero__lead {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  line-height: 1.8;
  max-width: 34em;
}
.pd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0 1rem;
}
.pd-hero__aux {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.pd-hero__aux::before {
  content: "?";
  width: 20px;
  height: 20px;
  border: 1px solid var(--color-accent-orange);
  border-radius: 50%;
  text-align: center;
  line-height: 18px;
  font-size: 12px;
  color: var(--color-accent-orange);
}
.pd-hero__figure {
  position: relative;
  z-index: 1;
  margin: 0;
}
.pd-hero__figure::before {
  content: "";
  position: absolute;
  right: -6%;
  bottom: -5%;
  width: 66%;
  height: 52%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.35), transparent 70%);
  filter: blur(24px);
  z-index: -1;
}
.pd-hero__figure::after {
  content: "";
  position: absolute;
  left: -5%;
  top: -5%;
  width: 48%;
  height: 42%;
  background: radial-gradient(circle, rgba(57, 255, 20, 0.2), transparent 70%);
  filter: blur(18px);
  z-index: -1;
}
.pd-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  background: var(--color-bg-secondary);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8%), 92% 100%, 0 100%);
}

@media (min-width: 900px) {
  .pd-hero {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4rem;
    padding-top: calc(var(--header-height) + 5rem);
    padding-bottom: 6rem;
  }
  .pd-hero::before {
    right: 7%;
  }
}

/* ===== 服务总览 ===== */
.pd-overview {
  position: relative;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 4rem 1.5rem;
}
.pd-overview::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.5rem;
  right: 1.5rem;
  height: 2px;
  background: linear-gradient(to right, transparent, rgba(255, 107, 53, 0.35) 30%, rgba(57, 255, 20, 0.35) 70%, transparent);
}
.pd-overview__intro {
  max-width: 52em;
  margin: 1rem 0 2.75rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.75;
}

/* 瀑布流：移动端单列 */
.pd-waterfall {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

/* 卡片基础 */
.pd-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  background: linear-gradient(160deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.25));
  transition: transform var(--transition-fast), border-color var(--transition-fast), filter var(--transition-fast);
}
.pd-card:hover {
  transform: translateY(-6px);
  border-color: rgba(57, 255, 20, 0.45);
  filter: drop-shadow(0 16px 32px rgba(0, 0, 0, 0.4));
}
.pd-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 1.25rem;
  color: var(--color-accent-orange);
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.35);
}
.pd-card__icon svg {
  width: 22px;
  height: 22px;
}
.pd-card h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 0.75rem;
}
.pd-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
  margin: 0;
}
.pd-card__more {
  margin-top: 1.25rem;
  border-top: var(--pd-dashed-line);
  padding-top: 0.75rem;
}
.pd-card__more summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-accent-green);
  font-weight: 700;
  font-size: 0.875rem;
}
.pd-card__more summary::-webkit-details-marker {
  display: none;
}
.pd-card__more summary::before {
  content: "+";
  color: var(--color-accent-orange);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1;
}
.pd-card__more[open] summary::before {
  content: "–";
}
.pd-card__more p {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
}
.pd-card__detail {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  align-items: center;
  margin-top: 1.5rem;
  padding-top: 0.75rem;
  border-top: var(--pd-dashed-line);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.pd-card__detail strong {
  color: var(--color-text-light);
}
.pd-card__tag {
  color: var(--color-accent-green);
  font-weight: 700;
}
.pd-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
  color: var(--color-accent-orange);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid rgba(255, 107, 53, 0.55);
  padding-bottom: 0.15rem;
}
.pd-card__link::after {
  content: "→";
}
.pd-card__link:hover {
  color: var(--color-accent-green);
  border-color: var(--color-accent-green);
}

/* 卡片形状与倾斜 */
.pd-card--broadcast {
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}
.pd-card--notice {
  clip-path: polygon(0 0, 100% 0, calc(100% - 20px) 100%, 0 100%);
  transform: rotate(0.6deg);
}
.pd-card--data {
  clip-path: polygon(20px 0, 100% 0, 100% 100%, 0 100%, 0 20px);
  transform: rotate(-0.4deg);
}
.pd-card--fav {
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transform: rotate(0.3deg);
}
.pd-card--access {
  clip-path: polygon(0 0, 88% 0, 100% 12%, 100% 88%, 88% 100%, 0 100%);
  transform: rotate(-0.3deg);
}
.pd-card--team {
  clip-path: polygon(7% 0, 100% 0, 93% 100%, 0 100%);
  transform: rotate(0.5deg);
}
.pd-card--notice:hover,
.pd-card--data:hover,
.pd-card--fav:hover,
.pd-card--access:hover,
.pd-card--team:hover {
  transform: rotate(0deg) translateY(-6px);
}

@media (min-width: 720px) {
  .pd-waterfall {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem 2rem;
  }
  .pd-card--notice {
    grid-column: 2;
    margin-top: 4.5rem;
  }
  .pd-card--data {
    grid-column: 1;
    margin-top: 2.5rem;
  }
  .pd-card--fav {
    grid-column: 2;
    margin-top: 2rem;
  }
  .pd-card--access {
    grid-column: 1;
    margin-top: 3.5rem;
  }
  .pd-card--team {
    grid-column: 2;
    margin-top: 2.5rem;
  }
}

/* ===== 核心功能 ===== */
.pd-features {
  position: relative;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 4rem 1.5rem 5rem;
}
.pd-features__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-top: 2.5rem;
}

.pd-feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 1.75rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}
.pd-feature:nth-child(odd) {
  transform: rotate(-0.4deg);
}
.pd-feature:nth-child(even) {
  transform: rotate(0.3deg);
}
.pd-feature:hover {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 107, 53, 0.45);
}
.pd-feature__copy {
  min-width: 0;
}
.pd-feature__index {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--color-accent-orange);
  border: 1px solid rgba(255, 107, 53, 0.4);
  padding: 0.2rem 0.55rem;
  margin-bottom: 1rem;
}
.pd-feature__copy h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}
.pd-feature__copy p {
  color: var(--color-text-muted);
  font-size: 0.9625rem;
  line-height: 1.75;
  margin: 0 0 1rem;
}
.pd-feature__more {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  padding: 0.875rem 1rem;
}
.pd-feature__more summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent-green);
  font-weight: 700;
  font-size: 0.9rem;
}
.pd-feature__more summary::-webkit-details-marker {
  display: none;
}
.pd-feature__more summary::before {
  content: "+";
  color: var(--color-accent-orange);
  font-weight: 700;
  font-size: 1.1rem;
}
.pd-feature__more[open] summary::before {
  content: "–";
}
.pd-feature__more p {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
}
.pd-feature__media {
  margin: 0;
  overflow: hidden;
  position: relative;
}
.pd-feature__media::after {
  content: "";
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  pointer-events: none;
}
.pd-feature__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.pd-feature:hover .pd-feature__media img {
  transform: scale(1.02);
}
.pd-feature__route {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: var(--pd-dashed-line);
}
.pd-feature__route-node {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.65rem;
  background: rgba(57, 255, 20, 0.07);
  border: 1px solid rgba(57, 255, 20, 0.3);
  color: var(--color-accent-green);
  white-space: nowrap;
}
.pd-feature__route-line {
  flex: 1;
  height: 2px;
  min-width: 18px;
  background: linear-gradient(to right, var(--color-accent-green), var(--color-accent-orange));
  position: relative;
}
.pd-feature__route-line::after {
  content: "";
  position: absolute;
  right: -2px;
  top: -3px;
  width: 8px;
  height: 8px;
  background: var(--color-accent-orange);
  transform: rotate(45deg);
}

@media (min-width: 720px) {
  .pd-feature {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
  }
  .pd-feature--notice .pd-feature__media {
    order: -1;
  }
}
@media (min-width: 992px) {
  .pd-features__list {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem 3rem;
  }
  .pd-feature--fav {
    grid-column: 1;
    margin-top: 3rem;
  }
  .pd-feature--notice {
    grid-column: 2;
    margin-top: 1rem;
  }
  .pd-feature--data {
    grid-column: 1;
    margin-top: 5rem;
  }
  .pd-feature--access {
    grid-column: 2;
    margin-top: 2rem;
  }
}

/* ===== 使用场景 ===== */
.pd-scenarios {
  position: relative;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 4rem 1.5rem 5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.pd-scenarios__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.pd-scenario {
  padding: 2rem 1.5rem;
  background: transparent;
  border: 1px dashed rgba(176, 184, 196, 0.3);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.pd-scenario:hover {
  border-color: var(--color-accent-orange);
  background: rgba(255, 107, 53, 0.04);
}
.pd-scenario__step {
  display: block;
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1;
  color: var(--color-accent-orange);
  opacity: 0.85;
  margin-bottom: 1rem;
}
.pd-scenario:nth-child(2) .pd-scenario__step {
  color: var(--color-accent-green);
}
.pd-scenario:nth-child(3) .pd-scenario__step {
  color: var(--color-text-muted);
}
.pd-scenario h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}
.pd-scenario p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0 0 1.5rem;
}
@media (min-width: 900px) {
  .pd-scenarios__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

/* ===== 版本说明 ===== */
.pd-version {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 5rem 1.5rem 6rem;
}
.pd-version::before {
  content: "V4";
  position: absolute;
  right: 0.5rem;
  top: 2rem;
  font-family: var(--font-display);
  font-size: clamp(7rem, 18vw, 13rem);
  line-height: 1;
  color: rgba(255, 255, 255, 0.035);
  pointer-events: none;
  z-index: 0;
}
.pd-version__text {
  position: relative;
  z-index: 1;
}
.pd-version__text p {
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 34em;
}
.pd-version__list {
  list-style: none;
  margin: 1.5rem 0 2rem;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}
.pd-version__list li {
  position: relative;
  padding-left: 1.75rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.pd-version__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 10px;
  height: 10px;
  background: var(--color-accent-green);
  transform: rotate(45deg);
}
.pd-version__media {
  position: relative;
  z-index: 1;
  margin: 0;
}
.pd-version__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}
.pd-version__compare {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}
.pd-version__column {
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}
.pd-version__column--old {
  background: rgba(255, 255, 255, 0.03);
}
.pd-version__column--new {
  border-color: rgba(57, 255, 20, 0.4);
  background: linear-gradient(160deg, rgba(57, 255, 20, 0.07), rgba(57, 255, 20, 0.01) 70%);
}
.pd-version__column h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  text-transform: uppercase;
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pd-version__column--old h3 {
  color: var(--color-text-muted);
}
.pd-version__column--new h3 {
  color: var(--color-text-light);
}
.pd-version__column--new h3::before {
  content: "";
  width: 12px;
  height: 12px;
  background: var(--color-accent-green);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.55);
}
.pd-version__column ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}
.pd-version__column li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}
.pd-version__column li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent-orange);
  font-weight: 700;
}
.pd-version__column--new li::before {
  content: "+";
  color: var(--color-accent-green);
}
@media (min-width: 992px) {
  .pd-version {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding-top: 6rem;
  }
  .pd-version__compare {
    grid-column: 1 / -1;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1rem;
  }
}

/* ===== 减少动效偏好 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition: none !important;
    animation: none !important;
  }
  .page-products .pd-card,
  .page-products .pd-feature {
    transform: none;
  }
}