.page-products {
  --page-mobile-gap: 24px;
  --page-desktop-gap: 56px;
  --page-cut: 14px;
  --page-border-soft: rgba(184, 147, 74, .28);
  --page-border-glow: rgba(212, 175, 55, .6);
}

/* ========== Hero 首屏 ========== */
.page-products .products-hero {
  position: relative;
  padding: 36px 0 64px;
  background:
    radial-gradient(ellipse at 82% 12%, rgba(212, 175, 55, .14), transparent 52%),
    radial-gradient(ellipse at 8% 92%, rgba(255, 107, 91, .08), transparent 46%),
    linear-gradient(180deg, #0A1A2F 0%, #0D2036 100%);
  border-bottom: 2px solid rgba(212, 175, 55, .55);
  overflow: hidden;
}

.page-products .products-hero::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(135deg, transparent 0, transparent 14px, rgba(127, 166, 201, .025) 14px, rgba(127, 166, 201, .025) 15px);
  pointer-events: none;
}

.page-products .products-hero .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.page-products .hero-copy {
  position: relative;
}

.page-products .hero-copy .breadcrumb {
  margin-bottom: 34px;
}

.page-products .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-products .hero-kicker::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--gold);
}

.page-products .hero-copy h1 {
  font-family: var(--font-head);
  font-size: clamp(38px, 8vw, 68px);
  line-height: 1.08;
  letter-spacing: .02em;
  margin: 18px 0 20px;
  color: var(--ivory);
  text-shadow: 0 6px 30px rgba(10, 26, 47, .85);
}

.page-products .hero-lead {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 0 28px;
}

.page-products .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.page-products .hero-stats {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 0;
  margin: 0;
  border-top: 1px solid rgba(184, 147, 74, .25);
  padding-top: 24px;
}

.page-products .hero-stats li {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: .06em;
}

.page-products .hero-stats span {
  color: var(--gold);
  font-size: 16px;
  font-weight: 600;
  margin-left: 6px;
}

.page-products .hero-visual {
  position: relative;
  background: rgba(13, 32, 54, .55);
  border: 1px solid rgba(184, 147, 74, .28);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
  padding: 14px;
}

.page-products .hero-visual::after {
  content: 'DATA FLOW / 数据流向';
  position: absolute;
  right: 18px;
  bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: rgba(212, 175, 55, .4);
  pointer-events: none;
}

.page-products .hero-svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ========== 服务总览 / 技能树 ========== */
.page-products .products-overview {
  background:
    linear-gradient(180deg, #0A1A2F 0%, #0E2136 100%);
  padding: 72px 0 88px;
}

.page-products .skill-tree {
  position: relative;
  max-width: 980px;
  margin: 52px auto 0;
  padding: 10px 0;
}

.page-products .skill-tree::before {
  content: '';
  position: absolute;
  left: 22px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--line-gold) 8%, rgba(184, 147, 74, .35) 92%, transparent);
}

.page-products .skill-node {
  position: relative;
  width: calc(100% - 58px);
  margin-left: 58px;
  margin-bottom: 40px;
}

.page-products .skill-node:last-child {
  margin-bottom: 0;
}

.page-products .skill-node__diamond {
  position: absolute;
  left: -48px;
  top: 20px;
  width: 40px;
  height: 40px;
  transform: rotate(45deg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy-deep);
  border: 2px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--gold);
  text-decoration: none;
  z-index: 2;
  transition: background .3s var(--ease-standard), box-shadow .3s var(--ease-standard);
}

.page-products .skill-node__diamond span {
  transform: rotate(-45deg);
  display: block;
}

.page-products .skill-node__diamond:hover,
.page-products .skill-node__diamond:focus-visible {
  background: var(--gold);
  color: var(--navy-deep);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, .18);
  outline: none;
}

.page-products .skill-node__card {
  position: relative;
  background: rgba(31, 45, 61, .72);
  border: 1px solid rgba(184, 147, 74, .28);
  padding: 20px 22px;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: border-color .3s var(--ease-standard), transform .3s var(--ease-standard), background .3s var(--ease-standard);
}

.page-products .skill-node__card:hover {
  border-color: var(--page-border-glow);
  background: rgba(31, 45, 61, .92);
  transform: translateY(-2px);
}

.page-products .skill-node__card::before {
  content: '';
  position: absolute;
  left: -58px;
  top: 40px;
  width: 58px;
  height: 2px;
  background: rgba(184, 147, 74, .3);
}

.page-products .skill-node__card h3 {
  font-family: var(--font-head);
  font-size: 21px;
  color: var(--ivory);
  margin: 0 0 8px;
  letter-spacing: .03em;
}

.page-products .skill-node__card h3 a {
  color: inherit;
  text-decoration: none;
}

.page-products .skill-node__card h3 a:hover {
  color: var(--gold);
}

.page-products .skill-node__card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-dim);
  margin: 0 0 12px;
}

.page-products .skill-node__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
  opacity: .8;
}

/* ========== 核心功能 ========== */
.page-products .products-features {
  background:
    radial-gradient(ellipse at 90% 10%, rgba(47, 163, 107, .06), transparent 40%),
    #0A1A2F;
  padding: 72px 0;
}

.page-products .feature-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--page-mobile-gap);
  margin-bottom: 64px;
  align-items: center;
}

.page-products .feature-card:last-child {
  margin-bottom: 0;
}

.page-products .feature-card__visual .media-frame {
  box-shadow: var(--shadow-panel);
}

.page-products .feature-card__content {
  position: relative;
}

.page-products .feature-card__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.page-products .feature-card__index::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--gold);
}

.page-products .feature-card__content h3 {
  font-family: var(--font-head);
  font-size: 28px;
  line-height: 1.2;
  color: var(--ivory);
  margin: 0 0 14px;
  letter-spacing: .02em;
}

.page-products .feature-card__content > p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0 0 20px;
}

.page-products .feature-card__list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: grid;
  gap: 10px;
}

.page-products .feature-card__list li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-products .feature-card__list li::before {
  content: '◆';
  position: absolute;
  left: 0;
  top: 1px;
  color: var(--gold);
  font-size: 10px;
}

.page-products .feature-card__sample {
  background: rgba(10, 26, 47, .65);
  border-left: 3px solid var(--gold);
  padding: 14px 16px;
}

.page-products .sample-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 6px;
}

.page-products .sample-code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--glow);
  word-break: break-all;
}

/* ========== 使用场景 ========== */
.page-products .products-scenarios {
  background:
    radial-gradient(ellipse at 10% 90%, rgba(255, 107, 91, .05), transparent 45%),
    #0D2036;
  padding: 72px 0;
}

.page-products .scenario-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 48px;
}

.page-products .scenario-card {
  background: rgba(10, 26, 47, .62);
  border: 1px solid rgba(184, 147, 74, .22);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  transition: border-color .3s var(--ease-standard), transform .3s var(--ease-standard);
}

.page-products .scenario-card:hover {
  border-color: var(--page-border-glow);
  transform: translateY(-4px);
}

.page-products .scenario-card__visual {
  margin: 14px;
}

.page-products .scenario-card__visual .media-frame {
  min-height: 180px;
}

.page-products .scenario-placeholder {
  width: 100%;
  height: 100%;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, rgba(127, 166, 201, .06), rgba(10, 26, 47, .8)),
    repeating-linear-gradient(45deg, rgba(212, 175, 55, .04) 0, rgba(212, 175, 55, .04) 1px, transparent 1px, transparent 10px);
}

.page-products .scenario-glyph {
  font-family: var(--font-head);
  font-size: 44px;
  color: rgba(212, 175, 55, .75);
  letter-spacing: .2em;
  margin-bottom: 12px;
  text-shadow: 0 0 30px rgba(212, 175, 55, .25);
}

.page-products .scenario-placeholder__text {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--text-faint);
}

.page-products .scenario-card__body {
  padding: 8px 24px 28px;
}

.page-products .scenario-card__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--coral);
}

.page-products .scenario-card__body h3 {
  font-family: var(--font-head);
  font-size: 22px;
  color: var(--ivory);
  margin: 8px 0 12px;
}

.page-products .scenario-card__body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0 0 16px;
}

.page-products .text-link {
  color: var(--gold);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid rgba(212, 175, 55, .4);
  padding-bottom: 2px;
  transition: border-color .3s;
}

.page-products .text-link:hover {
  border-bottom-color: var(--gold);
}

/* ========== 数据格式与安全 ========== */
.page-products .products-format {
  background:
    radial-gradient(ellipse at 85% 20%, rgba(212, 175, 55, .08), transparent 45%),
    #0A1A2F;
  padding: 72px 0;
}

.page-products .format-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: 48px;
}

.page-products .format-preview-panel {
  background: rgba(13, 32, 54, .72);
  border: 1px solid rgba(184, 147, 74, .3);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
  padding: 24px;
}

.page-products .format-switch {
  position: relative;
}

.page-products .format-switch__radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.page-products .format-switch__label {
  display: inline-block;
  padding: 8px 22px;
  margin-right: 4px;
  cursor: pointer;
  border: 1px solid rgba(184, 147, 74, .4);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--text-dim);
  background: rgba(10, 26, 47, .6);
  transition: all .3s var(--ease-standard);
}

.page-products .format-switch__label:hover {
  border-color: var(--gold);
  color: var(--ivory);
}

.page-products .format-switch__radio:checked + .format-switch__label {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy-deep);
  font-weight: 600;
}

.page-products .format-preview {
  display: none;
  margin-top: 22px;
}

.page-products .format-preview__title {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-products .format-preview__code {
  margin: 0;
  padding: 18px 16px;
  background: rgba(10, 26, 47, .85);
  border: 1px solid rgba(127, 166, 201, .14);
  border-left: 3px solid rgba(79, 195, 247, .75);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.75;
  color: var(--glow);
  white-space: pre-wrap;
  word-break: break-word;
}

.page-products .format-preview--json .format-preview__code {
  border-left-color: rgba(47, 163, 107, .8);
}

.page-products .format-preview--csv {
  display: block;
}

.page-products #fmt-json:checked ~ .format-preview--csv {
  display: none;
}

.page-products #fmt-json:checked ~ .format-preview--json {
  display: block;
}

.page-products .format-security-panel {
  background: rgba(31, 45, 61, .62);
  border: 1px solid rgba(184, 147, 74, .22);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-products .format-security-panel .media-frame {
  width: 180px;
  margin-bottom: 20px;
}

.page-products .format-security-panel h3 {
  font-family: var(--font-head);
  font-size: 24px;
  color: var(--ivory);
  margin: 0 0 16px;
}

.page-products .security-list {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
  text-align: left;
  display: grid;
  gap: 12px;
}

.page-products .security-list li {
  position: relative;
  padding-left: 28px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-products .security-list li::before {
  content: '●';
  position: absolute;
  left: 8px;
  top: 1px;
  font-size: 9px;
  color: var(--coconut);
  letter-spacing: 0;
}

.page-products .security-list li:nth-child(2)::before {
  color: var(--gold);
}

.page-products .security-list li:nth-child(3)::before {
  color: var(--coral);
}

.page-products .security-list li:nth-child(4)::before {
  color: var(--glow);
}

.page-products .security-list li:nth-child(5)::before {
  color: var(--dark-red);
}

/* ========== CTA ========== */
.page-products .products-cta {
  background:
    linear-gradient(180deg, transparent, rgba(139, 30, 45, .22)),
    #0A1A2F;
  padding: 40px 0 72px;
}

.page-products .cta-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
  max-width: 760px;
  margin: 0 auto;
  background: rgba(13, 32, 54, .72);
  border: 1px solid rgba(184, 147, 74, .3);
  border-left: 4px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
  padding: 36px 32px;
}

.page-products .cta-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-products .cta-copy h2 {
  font-family: var(--font-head);
  font-size: 30px;
  color: var(--ivory);
  margin: 10px 0 12px;
}

.page-products .cta-copy p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0;
}

.page-products .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ========== 桌面端媒体查询 ========== */
@media (min-width: 768px) {
  .page-products .products-hero {
    padding: 56px 0 88px;
  }

  .page-products .hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr);
    gap: 64px;
  }

  .page-products .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-products .hero-stats li {
    padding-right: 20px;
    border-right: 1px solid rgba(184, 147, 74, .2);
  }

  .page-products .hero-stats li:last-child {
    border-right: 0;
  }

  .page-products .hero-visual {
    padding: 18px;
  }

  .page-products .products-overview {
    padding: 88px 0 104px;
  }

  .page-products .skill-tree {
    padding: 20px 0;
  }

  .page-products .skill-tree::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-products .skill-node {
    width: calc(50% - 64px);
    margin-left: 0;
    margin-right: 0;
  }

  .page-products .skill-node--left {
    margin-left: 0;
    margin-right: auto;
    text-align: right;
  }

  .page-products .skill-node--right {
    margin-left: auto;
    margin-right: 0;
    text-align: left;
  }

  .page-products .skill-node__diamond {
    left: auto;
    right: auto;
    top: 24px;
    width: 48px;
    height: 48px;
  }

  .page-products .skill-node--left .skill-node__diamond {
    right: -88px;
  }

  .page-products .skill-node--right .skill-node__diamond {
    left: -88px;
  }

  .page-products .skill-node__card {
    padding: 26px 30px;
  }

  .page-products .skill-node--left .skill-node__card::before {
    left: auto;
    right: -64px;
    width: 64px;
  }

  .page-products .skill-node--right .skill-node__card::before {
    left: -64px;
    width: 64px;
  }

  .page-products .skill-node__card h3 {
    font-size: 24px;
  }

  .page-products .skill-node__card p {
    font-size: 15px;
  }

  .page-products .products-features {
    padding: 88px 0 96px;
  }

  .page-products .feature-card {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--page-desktop-gap);
    margin-bottom: 88px;
  }

  .page-products .feature-card--flip .feature-card__visual {
    order: 2;
  }

  .page-products .feature-card--flip .feature-card__content {
    order: 1;
  }

  .page-products .feature-card__content h3 {
    font-size: 32px;
  }

  .page-products .feature-card__list {
    grid-template-columns: 1fr 1fr;
    gap: 12px 20px;
  }

  .page-products .products-scenarios {
    padding: 88px 0;
  }

  .page-products .scenario-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .page-products .scenario-card__visual {
    margin: 14px 14px 0;
  }

  .page-products .scenario-card__body {
    padding: 16px 22px 26px;
  }

  .page-products .products-format {
    padding: 88px 0;
  }

  .page-products .format-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr);
    gap: 44px;
    align-items: stretch;
  }

  .page-products .format-preview-panel {
    padding: 32px;
  }

  .page-products .format-security-panel {
    padding: 32px 28px;
  }

  .page-products .products-cta {
    padding: 56px 0 88px;
  }

  .page-products .cta-panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 44px 48px;
  }

  .page-products .cta-copy h2 {
    font-size: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .skill-node__card,
  .page-products .scenario-card,
  .page-products .feature-card__sample {
    transition: none;
  }
}