.page-products {
  --color-bg-primary: #0A0E1A;
  --color-bg-secondary: #12172B;
  --color-accent-blue: #00D4FF;
  --color-accent-purple: #9500FF;
  --color-text-white: #FFFFFF;
  --color-text-light: #B0B8C8;
  --color-text-dim: #6A7284;
  --color-data-highlight: #FF3366;
  --font-heading: 'Inter','PingFang SC',system-ui,sans-serif;
  --font-body: 'Inter','PingFang SC',system-ui,sans-serif;
  --font-data: 'JetBrains Mono','Courier New',monospace;
  --header-height: 72px;
  --container-max: 1280px;
  --gap: 24px;
  --radius: 8px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --skill-node-gap: 32px;
  --connector-color: #00D4FF;
}

/* ---- 容器 ---- */
.page-products .container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- 共用标记 ---- */
.page-products .section-label {
  font-family: var(--font-data);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  margin-bottom: 12px;
}

/* ============================================
   首屏
   ============================================ */
.page-products .hero-section {
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
}
.page-products .hero-section__glow {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle at 60% 40%, rgba(149,0,255,0.15), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.page-products .hero-section__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.page-products .hero-content {
  flex: 1 1 auto;
}
.page-products .hero-content__tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent-blue);
  letter-spacing: 0.1em;
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: 4px;
  padding: 4px 12px;
  margin-bottom: 16px;
}
.page-products .hero-content__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2.6rem;
  line-height: 1.1;
  color: var(--color-text-white);
  margin: 0 0 16px 0;
}
.page-products .hero-content__desc {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-text-light);
  max-width: 540px;
  margin: 0 0 28px 0;
}
.page-products .hero-content__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.page-products .hero-content__btn {
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  transition: var(--transition);
}
.page-products .hero-content__btn.btn-primary {
  background: var(--color-accent-blue);
  color: #0A0E1A;
  border: 2px solid var(--color-accent-blue);
}
.page-products .hero-content__btn.btn-primary:hover {
  background: transparent;
  color: var(--color-accent-blue);
  box-shadow: 0 0 24px rgba(0,212,255,0.3);
}
.page-products .hero-content__btn.btn-outline {
  background: transparent;
  color: var(--color-accent-purple);
  border: 2px solid var(--color-accent-purple);
}
.page-products .hero-content__btn.btn-outline:hover {
  background: rgba(149,0,255,0.12);
  box-shadow: 0 0 20px rgba(149,0,255,0.2);
}
.page-products .hero-visual {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}
.page-products .hero-visual__img {
  width: 100%;
  max-width: 320px;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0,0,0,0.6), 0 0 0 1px rgba(0,212,255,0.1);
  object-fit: cover;
}

/* ============================================
   技能树区域
   ============================================ */
.page-products .features-section {
  padding: 60px 0 80px;
}
.page-products .features-section__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2rem;
  line-height: 1.15;
  color: var(--color-text-white);
  margin: 0 0 8px 0;
}
.page-products .features-section__subtitle {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-light);
  margin: 0 0 48px 0;
  max-width: 480px;
}

/* ---- 技能树容器 ---- */
.page-products .skill-tree {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ---- 技能节点 ---- */
.page-products .skill-node {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--color-bg-secondary);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: var(--radius);
  padding: 24px 20px;
  transition: var(--transition);
  position: relative;
}
.page-products .skill-node:hover {
  border-color: rgba(0,212,255,0.45);
  box-shadow: 0 0 30px rgba(0,212,255,0.08), inset 0 0 30px rgba(0,212,255,0.03);
  transform: translateY(-2px);
}
.page-products .skill-node__num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.6rem;
  color: rgba(0,212,255,0.2);
  line-height: 1;
  margin-bottom: -8px;
}
.page-products .skill-node__media {
  flex: 0 0 auto;
}
.page-products .skill-node__img {
  width: 100%;
  height: auto;
  max-height: 180px;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}
.page-products .skill-node__body {
  flex: 1 1 auto;
}
.page-products .skill-node__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--color-text-white);
  margin: 0 0 8px 0;
}
.page-products .skill-node__desc {
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-light);
  margin: 0;
}

/* ---- 连接器 ---- */
.page-products .connector {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 8px 0;
  color: var(--connector-color);
  opacity: 0.5;
  transition: var(--transition);
}
.page-products .skill-tree:hover .connector {
  opacity: 0.85;
}
.page-products .connector__svg {
  width: 60px;
  height: 20px;
  display: block;
}
.page-products .connector--down-left .connector__svg {
  width: 20px;
  height: 60px;
}
.page-products .connector--left .connector__svg {
  transform: scaleX(-1);
}

/* ============================================
   使用场景
   ============================================ */
.page-products .scenarios-section {
  padding: 60px 0 80px;
}
.page-products .scenarios-section__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2rem;
  line-height: 1.15;
  color: var(--color-text-white);
  margin: 0 0 8px 0;
}
.page-products .scenarios-section__subtitle {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-light);
  margin: 0 0 40px 0;
  max-width: 480px;
}
.page-products .scenario-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-products .scenario-card {
  background: var(--color-bg-secondary);
  border: 1px solid rgba(149,0,255,0.2);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
}
.page-products .scenario-card:hover {
  border-color: rgba(149,0,255,0.5);
  box-shadow: 0 0 28px rgba(149,0,255,0.07);
}
.page-products .scenario-card__icon {
  width: 40px;
  height: 40px;
  color: var(--color-accent-purple);
  margin-bottom: 16px;
}
.page-products .scenario-card__icon svg {
  width: 100%;
  height: 100%;
}
.page-products .scenario-card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1.3;
  color: var(--color-text-white);
  margin: 0 0 10px 0;
}
.page-products .scenario-card__desc {
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-light);
  margin: 0 0 16px 0;
}
.page-products .scenario-card__link {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent-blue);
  text-decoration: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.page-products .scenario-card__link:hover {
  color: var(--color-text-white);
  gap: 8px;
}

/* ============================================
   下载引导
   ============================================ */
.page-products .download-section {
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
}
.page-products .download-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 60%, rgba(0,212,255,0.06), transparent 70%);
  pointer-events: none;
}
.page-products .download-section__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 40px;
}
.page-products .download-content__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2.2rem;
  line-height: 1.15;
  color: var(--color-text-white);
  margin: 0 0 12px 0;
}
.page-products .download-content__desc {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 440px;
  margin: 0 auto 28px;
  line-height: 1.6;
}
.page-products .download-content__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}
.page-products .download-content__btn {
  padding: 14px 36px;
  font-size: 1.05rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  transition: var(--transition);
}
.page-products .download-content__btn.btn-primary {
  background: var(--color-accent-blue);
  color: #0A0E1A;
  border: 2px solid var(--color-accent-blue);
}
.page-products .download-content__btn.btn-primary:hover {
  background: transparent;
  color: var(--color-accent-blue);
  box-shadow: 0 0 32px rgba(0,212,255,0.35);
}
.page-products .download-content__btn.btn-outline {
  background: transparent;
  color: var(--color-accent-purple);
  border: 2px solid var(--color-accent-purple);
}
.page-products .download-content__btn.btn-outline:hover {
  background: rgba(149,0,255,0.12);
  box-shadow: 0 0 24px rgba(149,0,255,0.2);
}
.page-products .download-content__note {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--color-text-dim);
  margin: 0;
}
.page-products .download-visual {
  display: none;
}
.page-products .download-visual__ring {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 1px solid rgba(0,212,255,0.1);
  position: relative;
  animation: ringPulse 4s ease-in-out infinite;
}
.page-products .download-visual__ring--slow {
  width: 260px;
  height: 260px;
  animation-duration: 6s;
  border-color: rgba(149,0,255,0.08);
}
@keyframes ringPulse {
  0%,100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.04); opacity: 1; }
}

/* ============================================
   页内导航
   ============================================ */
.page-products .page-nav {
  padding: 20px 0 40px;
}
.page-products .page-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 24px;
}
.page-products .page-nav__list a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-dim);
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}
.page-products .page-nav__list a:hover {
  color: var(--color-accent-blue);
  border-bottom-color: var(--color-accent-blue);
}

/* ============================================
   桌面端 ≥768px
   ============================================ */
@media (min-width: 768px) {
  .page-products .container {
    padding: 0 32px;
  }

  /* 首屏：左右并排 */
  .page-products .hero-section {
    padding: 100px 0 80px;
  }
  .page-products .hero-section__inner {
    flex-direction: row;
    align-items: center;
    gap: 60px;
  }
  .page-products .hero-content {
    flex: 0 0 55%;
  }
  .page-products .hero-content__title {
    font-size: 3.4rem;
  }
  .page-products .hero-content__desc {
    font-size: 1.1rem;
  }
  .page-products .hero-visual {
    flex: 0 0 40%;
    justify-content: flex-end;
  }
  .page-products .hero-visual__img {
    max-width: 380px;
  }

  /* 技能树：两行两列 + 连接线 */
  .page-products .skill-tree {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    grid-template-rows: auto auto auto auto;
    gap: 16px 24px;
    align-items: center;
  }
  /* 节点位置 */
  .page-products .skill-node[data-node="1"] { grid-column: 1; grid-row: 1; }
  .page-products .connector[data-connector="1-2"] { grid-column: 2; grid-row: 1; }
  .page-products .skill-node[data-node="2"] { grid-column: 3; grid-row: 1; }
  .page-products .connector[data-connector="2-3"] { grid-column: 2; grid-row: 2; }
  .page-products .skill-node[data-node="3"] { grid-column: 1; grid-row: 3; }
  .page-products .connector[data-connector="3-4"] { grid-column: 2; grid-row: 3; }
  .page-products .skill-node[data-node="4"] { grid-column: 3; grid-row: 3; }
  /* 占位空白行 */
  .page-products .skill-tree::before {
    content: '';
    display: block;
    grid-column: 1 / 4;
    grid-row: 2;
    height: 8px;
  }
  .page-products .skill-tree::after {
    content: '';
    display: block;
    grid-column: 1 / 4;
    grid-row: 4;
    height: 0;
  }
  /* 连接器方向调整 */
  .page-products .connector[data-connector="1-2"] .connector__svg,
  .page-products .connector[data-connector="3-4"] .connector__svg {
    width: 72px;
    height: 20px;
  }
  .page-products .connector[data-connector="2-3"] .connector__svg {
    width: 20px;
    height: 72px;
  }
  /* 节点增强 */
  .page-products .skill-node {
    padding: 32px 28px;
  }
  .page-products .skill-node__img {
    max-height: 200px;
  }

  /* 场景：三列 */
  .page-products .scenario-grid {
    flex-direction: row;
    gap: 24px;
  }
  .page-products .scenario-card {
    flex: 1 1 0;
    min-width: 0;
  }

  /* 下载：左右并排 */
  .page-products .download-section__inner {
    flex-direction: row;
    text-align: left;
    justify-content: space-between;
  }
  .page-products .download-content {
    flex: 0 0 55%;
  }
  .page-products .download-content__title {
    font-size: 2.6rem;
  }
  .page-products .download-content__desc {
    margin-left: 0;
    margin-right: 0;
  }
  .page-products .download-content__actions {
    justify-content: flex-start;
  }
  .page-products .download-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 0 0 35%;
    position: relative;
  }
}

/* ============================================
   大桌面 ≥1024px
   ============================================ */
@media (min-width: 1024px) {
  .page-products .hero-content__title {
    font-size: 4rem;
  }
  .page-products .hero-visual__img {
    max-width: 420px;
  }
  .page-products .features-section__title,
  .page-products .scenarios-section__title {
    font-size: 2.4rem;
  }
  .page-products .skill-tree {
    gap: 20px 32px;
  }
  .page-products .skill-node {
    padding: 40px 32px;
  }
  .page-products .skill-node__num {
    font-size: 2rem;
  }
}
</PAGE_CSS>