.page-products {
  --pd-sticky: calc(var(--header-h) + 18px);
  --pd-line-soft: rgba(30, 58, 82, .55);
  --pd-cyan-soft: rgba(45, 226, 230, .14);
  --pd-warm-soft: rgba(255, 122, 61, .12);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

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

.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
  padding: clamp(18px, 4vw, 34px) 0 clamp(14px, 2vw, 20px);
}

.page-products .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
}

.page-products .breadcrumb a:hover {
  color: var(--cyan);
}

.page-products .breadcrumb span[aria-current] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(8px, 2vw, 18px);
  padding-bottom: clamp(36px, 6vw, 64px);
  border-bottom: 1px solid var(--pd-line-soft);
}

.page-products .pd-hero-main h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.15;
  letter-spacing: -.03em;
  margin: 10px 0 16px;
  color: var(--paper);
}

.page-products .pd-lede {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
  max-width: 62ch;
}

.page-products .pd-hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-products .pd-hero-figure {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background:
    linear-gradient(155deg, var(--pd-cyan-soft), rgba(10, 34, 56, .88) 58%),
    var(--ink-2);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-products .pd-verbadge {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.page-products .pd-verbadge-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 4.2rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
  text-shadow: 0 0 30px rgba(45, 226, 230, .35);
}

.page-products .pd-verbadge-label {
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-products .pd-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pd-line-soft);
}

.page-products .pd-hero-stats dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-products .pd-hero-stats dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.4vw, 1.4rem);
  color: var(--paper);
}

.page-products .pd-hero-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 版本横带 ---------- */
.page-products .pd-band {
  padding-top: clamp(36px, 6vw, 64px);
}

.page-products .pd-band-head,
.page-products .pd-compare-head,
.page-products .pd-services-head,
.page-products .pd-steps-head,
.page-products .pd-req-head,
.page-products .pd-faq-head {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-products .pd-band-head h2,
.page-products .pd-compare-head h2,
.page-products .pd-services-head h2,
.page-products .pd-steps-head h2,
.page-products .pd-req-head h2,
.page-products .pd-faq-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.1vw, 2.2rem);
  line-height: 1.25;
  letter-spacing: -.02em;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-products .pd-band-head p,
.page-products .pd-compare-head p,
.page-products .pd-services-head p,
.page-products .pd-steps-head p,
.page-products .pd-req-head p,
.page-products .pd-faq-head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 70ch;
}

.page-products .pd-vergrid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .pd-vcard {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 3vw, 26px);
  background: var(--panel-bg);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-products .pd-vcard--live {
  border-color: var(--cyan);
  background: linear-gradient(158deg, var(--pd-cyan-soft), rgba(10, 34, 56, .82) 58%);
}

.page-products .pd-vcard--legacy {
  border-color: rgba(255, 122, 61, .38);
  background: linear-gradient(158deg, var(--pd-warm-soft), rgba(10, 34, 56, .82) 58%);
}

.page-products .pd-vcard-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pd-vcard-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-products .pd-vcard--live .pd-vcard-num {
  color: var(--cyan);
  text-shadow: 0 0 22px rgba(45, 226, 230, .32);
}

.page-products .pd-vcard--legacy .pd-vcard-num {
  color: var(--orange);
}

.page-products .pd-vcard h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-products .pd-vcard p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .pd-vcard-link {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  align-self: flex-start;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-products .pd-vcard--legacy .pd-vcard-link {
  color: var(--orange);
}

.page-products .pd-vcard-link:hover {
  border-bottom-color: currentColor;
}

/* ---------- 版本对比 + 下载 ---------- */
.page-products .pd-compare {
  padding-top: clamp(40px, 7vw, 76px);
}

.page-products .pd-compare-figure {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  margin-bottom: clamp(18px, 3vw, 28px);
  background: var(--ink-2);
}

.page-products .pd-compare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-products .pd-table-wrap {
  overflow-x: auto;
}

.page-products .pd-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--panel-bg);
  border: 1px solid var(--line);
}

.page-products .pd-table caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-products .pd-table th,
.page-products .pd-table td {
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  border-bottom: 1px solid var(--pd-line-soft);
}

.page-products .pd-table thead th {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.page-products .pd-table tbody th {
  font-weight: 600;
  color: var(--paper);
  white-space: nowrap;
}

.page-products .pd-table td {
  color: var(--mist);
}

.page-products .pd-table .pd-th-live {
  color: var(--cyan);
}

.page-products .pd-table .pd-td-live {
  color: var(--paper);
  background: rgba(45, 226, 230, .06);
}

.page-products .pd-table tbody tr:hover td,
.page-products .pd-table tbody tr:hover th {
  background: rgba(45, 226, 230, .09);
}

.page-products .pd-table a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 61, .4);
}

.page-products .pd-table a:hover {
  color: var(--paper);
}

.page-products .pd-table-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .pd-dl {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 3vw, 26px);
  background: linear-gradient(165deg, var(--pd-cyan-soft), rgba(10, 34, 56, .88) 62%);
  border: 1px solid var(--cyan);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-products .pd-dl-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pd-dl-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 1.9rem);
  color: var(--cyan);
}

.page-products .pd-dl-figure {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-products .pd-dl h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-products .pd-plats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.page-products .pd-plats a {
  display: block;
  padding: 10px 8px;
  border: 1px solid var(--line);
  background: rgba(6, 20, 35, .72);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: center;
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.page-products .pd-plats a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-1px);
}

.page-products .pd-progress {
  height: 6px;
  background: rgba(30, 58, 82, .85);
  overflow: hidden;
}

.page-products .pd-progress-fill {
  display: block;
  width: 72%;
  height: 100%;
  background: linear-gradient(90deg, var(--ok), var(--cyan));
  box-shadow: 0 0 14px rgba(45, 226, 230, .55);
  animation: pd-flow 2.8s ease-in-out infinite;
}

@keyframes pd-flow {
  0%, 100% { opacity: .72; }
  50% { opacity: 1; }
}

.page-products .pd-dl-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 服务清单 ---------- */
.page-products .pd-services {
  padding-top: clamp(40px, 7vw, 76px);
}

.page-products .pd-svc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .pd-svc {
  padding: clamp(16px, 2.6vw, 24px);
  background: var(--panel-bg);
  border: 1px solid var(--line);
}

.page-products .pd-svc-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--pd-line-soft);
}

.page-products .pd-svc-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--cyan);
  line-height: 1;
}

.page-products .pd-svc-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--paper);
}

.page-products .pd-svc-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
  border: 1px solid var(--line);
  padding: 2px 8px;
}

.page-products .pd-svc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-products .pd-svc-list li {
  position: relative;
  padding-left: 17px;
}

.page-products .pd-svc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

/* ---------- 四步上手 ---------- */
.page-products .pd-steps {
  padding-top: clamp(40px, 7vw, 76px);
}

.page-products .pd-steps-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-products .pd-steps-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-products .pd-steps-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-products .pd-steps-figure figcaption {
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--mist);
  border-top: 1px solid var(--pd-line-soft);
}

.page-products .pd-step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
  counter-reset: none;
}

.page-products .pd-step {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pd-line-soft);
}

.page-products .pd-step:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pd-step-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--cyan);
  line-height: 1.2;
}

.page-products .pd-step h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--paper);
}

.page-products .pd-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 系统与分辨率 ---------- */
.page-products .pd-req {
  padding-top: clamp(40px, 7vw, 76px);
}

.page-products .pd-req-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .pd-req-card {
  padding: clamp(16px, 2.6vw, 24px);
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-products .pd-req-card h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--paper);
}

.page-products .pd-req-list,
.page-products .pd-res-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .pd-req-list li,
.page-products .pd-res-list li {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.page-products .pd-req-list .mono,
.page-products .pd-res-list .mono {
  display: inline-block;
  min-width: 92px;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--paper);
  letter-spacing: .02em;
}

.page-products .pd-res-list .mono {
  color: var(--cyan);
}

.page-products .pd-req-figure {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  margin-top: 16px;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-products .pd-req-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 旧版资料 ---------- */
.page-products .pd-legacy {
  padding-top: clamp(40px, 7vw, 76px);
}

.page-products .pd-legacy-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  background:
    linear-gradient(150deg, var(--pd-warm-soft), rgba(10, 34, 56, .9) 62%),
    var(--ink-2);
  border: 1px solid rgba(255, 122, 61, .42);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
  margin: 0;
}

.page-products .pd-legacy-body {
  padding: clamp(22px, 4vw, 38px);
}

.page-products .pd-legacy-body h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 2.9vw, 2rem);
  line-height: 1.28;
  letter-spacing: -.02em;
  margin: 12px 0 14px;
  color: var(--paper);
}

.page-products .pd-legacy-body p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 60ch;
}

.page-products .pd-legacy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-products .pd-legacy-figure {
  margin: 0;
  border-top: 1px solid rgba(255, 122, 61, .32);
}

.page-products .pd-legacy-figure img {
  width: 100%;
  height: 100%;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* ---------- FAQ ---------- */
.page-products .pd-faq {
  padding-top: clamp(40px, 7vw, 76px);
}

.page-products .pd-faq-list {
  border-top: 1px solid var(--pd-line-soft);
}

.page-products .pd-faq-item {
  border-bottom: 1px solid var(--pd-line-soft);
}

.page-products .pd-faq-item summary {
  position: relative;
  cursor: pointer;
  padding: 16px 44px 16px 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  list-style: none;
}

.page-products .pd-faq-item summary::-webkit-details-marker {
  display: none;
}

.page-products .pd-faq-item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  transition: transform .2s var(--ease);
}

.page-products .pd-faq-item[open] summary::after {
  content: "−";
}

.page-products .pd-faq-item summary:hover {
  color: var(--cyan);
}

.page-products .pd-faq-item p {
  margin: 0;
  padding: 0 44px 18px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 72ch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .pd-svc-grid,
  .page-products .pd-req-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .pd-vergrid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-products .pd-hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pd-steps-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
    gap: 32px;
  }

  .page-products .pd-legacy-card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-products .pd-legacy-figure {
    border-top: 0;
    border-left: 1px solid rgba(255, 122, 61, .32);
  }
}

@media (min-width: 940px) {
  .page-products .pd-compare-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }

  .page-products .pd-table-wrap {
    overflow: visible;
    position: sticky;
    top: var(--pd-sticky);
  }

  .page-products .pd-table {
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-progress-fill {
    animation: none;
    opacity: 1;
  }

  .page-products .pd-plats a,
  .page-products .pd-faq-item summary::after {
    transition: none;
  }
}