.page-products {
  --prod-blue: #0A1F3D;
  --prod-blue-soft: #10294F;
  --prod-gold: #D4A017;
  --prod-red: #E23B2E;
  --prod-green: #3CB371;
  --prod-cream: #F5F0E6;
  --prod-brown: #2B1E16;
  --prod-orange: #FF6B35;
  --prod-glass: rgba(255, 255, 255, 0.2);
  --prod-radius: 24px;
  background-color: var(--prod-blue);
  color: var(--prod-cream);
  overflow-x: hidden;
}

.page-products .container {
  max-width: var(--content-max, 1180px);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.page-products .breadcrumb {
  padding-top: 1.25rem;
}

/* 首屏标题区 */
.page-products__hero {
  padding-block: 2.5rem 1.75rem;
}

.page-products__kicker {
  display: inline-block;
  font-family: var(--font-numeric);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--prod-gold);
  border: 1px solid rgba(212, 160, 23, 0.45);
  border-radius: 999px;
  padding: 0.25rem 0.875rem;
  margin: 0 0 1rem;
}

.page-products__hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.1;
  margin: 0 0 1rem;
  color: var(--prod-cream);
}

.page-products__lead {
  max-width: 44rem;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.82);
  margin: 0;
}

/* 章节编号 */
.page-products__chapter-num {
  display: inline-block;
  font-family: var(--font-numeric);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--prod-gold);
  border-bottom: 2px solid var(--prod-gold);
  padding-bottom: 0.25rem;
  margin-bottom: 1rem;
}

/* 01 产品概览 */
.page-products__overview {
  padding-block: 2rem 3rem;
  background:
    linear-gradient(
      112deg,
      rgba(16, 41, 79, 0.72) 0%,
      rgba(16, 41, 79, 0) 62%
    ),
    var(--prod-blue);
}

.page-products__overview-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-products__overview-copy {
  background: var(--prod-cream);
  color: var(--prod-brown);
  border-radius: var(--prod-radius);
  padding: 1.75rem 1.375rem;
  box-shadow:
    0 28px 64px rgba(2, 10, 26, 0.45),
    inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.page-products__overview-copy .page-products__chapter-num {
  border-bottom-color: var(--prod-red);
  color: var(--prod-red);
}

.page-products__overview-copy h2,
.page-products__features h2,
.page-products__download h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}

.page-products__overview-copy p,
.page-products__band-copy p,
.page-products__download-copy p {
  line-height: 1.75;
  color: inherit;
}

.page-products__overview-copy p {
  margin: 1rem 0;
}

.page-products__overview-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}

.page-products__overview-list li {
  position: relative;
  padding: 0.375rem 0 0.375rem 1.625rem;
  font-size: 0.9375rem;
}

.page-products__overview-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.875rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  border: 2px solid var(--prod-red);
}

.page-products__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  border-top: 3px solid rgba(42, 30, 22, 0.14);
  padding-top: 1.25rem;
}

.page-products__stats .stat {
  background: var(--prod-blue);
  color: var(--prod-cream);
  border-radius: 14px;
  padding: 0.875rem 0.5rem;
  text-align: center;
}

.page-products__stats .stat__num {
  display: block;
  font-family: var(--font-numeric);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--prod-gold);
  line-height: 1.2;
}

.page-products__stats .stat__label {
  display: block;
  font-size: 0.75rem;
  line-height: 1.35;
  margin-top: 0.375rem;
  color: rgba(245, 240, 230, 0.82);
}

/* 手机设备框 */
.page-products__phone-wrap {
  margin: 0;
}

.page-products__device {
  background: var(--prod-blue-soft);
  border: 6px solid rgba(245, 240, 230, 0.92);
  border-radius: 32px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
}

.page-products__device--phone {
  max-width: 320px;
  margin-inline: auto;
  border-width: 6px;
}

.page-products__device-screen {
  border-radius: 18px;
  background: var(--prod-blue);
  overflow: hidden;
  position: relative;
}

.page-products__device-screen img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products__phone-wrap figcaption {
  max-width: 320px;
  margin: 0.875rem auto 0;
  text-align: center;
  color: rgba(245, 240, 230, 0.68);
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* 02 功能详情 */
.page-products__features {
  padding-block: 2rem 4rem;
}

.page-products__features .container > h2 {
  margin-bottom: 0.75rem;
}

.page-products__section-note {
  max-width: 34rem;
  color: rgba(245, 240, 230, 0.72);
  line-height: 1.7;
  margin: 0 0 2rem;
}

.page-products__band {
  position: relative;
  background: var(--prod-cream);
  color: var(--prod-brown);
  border-radius: var(--prod-radius);
  padding: 1.875rem 1.25rem;
  overflow: hidden;
  margin-bottom: 1.75rem;
  display: grid;
  gap: 1.5rem;
}

.page-products__band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -15deg,
    rgba(226, 59, 46, 0.16) 0 2px,
    transparent 2px 20px
  );
  pointer-events: none;
  z-index: 0;
}

.page-products__band-index {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-family: var(--font-numeric);
  font-size: 3rem;
  font-weight: 600;
  color: rgba(42, 30, 22, 0.08);
  line-height: 1;
  z-index: 0;
  pointer-events: none;
}

.page-products__band-copy,
.page-products__band-media {
  position: relative;
  z-index: 1;
}

.page-products__band-copy h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.3125rem, 2.4vw, 1.75rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 0.875rem;
  padding-right: 2.5rem;
}

.page-products__band-copy p {
  margin: 0 0 1.125rem;
  color: rgba(42, 30, 22, 0.82);
}

.page-products__feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-products__feature-list li {
  position: relative;
  padding-left: 1.625rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: rgba(42, 30, 22, 0.88);
}

.page-products__feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.625rem;
  height: 0.625rem;
  background: var(--prod-red);
  border-radius: 2px 6px 6px 2px;
  transform: rotate(-4deg);
}

.page-products__band-media {
  min-width: 0;
}

/* 平板设备框 */
.page-products__device--tablet {
  border-radius: 18px;
  background: var(--prod-blue);
  padding: 0.625rem;
  border: 4px solid rgba(245, 240, 230, 0.88);
  box-shadow: 0 18px 40px rgba(42, 30, 22, 0.22);
}

.page-products__device--tablet .page-products__device-screen {
  border-radius: 10px;
  background: var(--prod-cream);
}

.page-products__device--tablet img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* 版本对比屏幕 */
.page-products__compare-screen {
  position: relative;
}

.page-products__compare-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2.5rem;
  height: 2.5rem;
  transform: translate(-50%, -50%);
  background: var(--prod-gold);
  border-radius: 50%;
  box-shadow:
    0 0 0 4px rgba(212, 160, 23, 0.3),
    0 8px 24px rgba(42, 30, 22, 0.35);
}

.page-products__compare-handle::after {
  content: "";
  position: absolute;
  inset: 0.875rem;
  border-top: 2px solid var(--prod-blue);
  border-bottom: 2px solid var(--prod-blue);
}

/* 03 下载指南 */
.page-products__download {
  padding-block: 2rem 4rem;
  background:
    linear-gradient(180deg, rgba(226, 59, 46, 0.12), rgba(226, 59, 46, 0) 42%),
    var(--prod-blue);
}

.page-products__download-grid {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.page-products__download-copy {
  background: rgba(245, 240, 230, 0.95);
  color: var(--prod-brown);
  border-radius: var(--prod-radius);
  padding: 1.75rem 1.375rem;
  box-shadow: 0 24px 56px rgba(2, 10, 26, 0.5);
}

.page-products__download-copy h2 {
  margin-bottom: 1rem;
}

.page-products__download-copy p {
  margin: 0 0 1rem;
  font-size: 1rem;
}

.page-products__download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 1.125rem;
}

.page-products .btn--primary {
  background: var(--prod-red);
  color: #fff;
  border: 2px solid var(--prod-red);
  border-radius: 999px;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
}

.page-products .btn--outline {
  background: transparent;
  color: var(--prod-blue);
  border: 2px solid var(--prod-blue);
  border-radius: 999px;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
}

.page-products .btn--primary:hover,
.page-products .btn--outline:hover {
  filter: brightness(1.1);
}

.page-products__service-note {
  background: rgba(16, 41, 79, 0.08);
  border-left: 4px solid var(--prod-gold);
  border-radius: 0 12px 12px 0;
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  color: rgba(42, 30, 22, 0.85);
}

.page-products__service-note p {
  margin: 0.25rem 0 0;
}

.page-products__service-note p:first-child {
  margin-top: 0;
}

.page-products__coverage {
  margin: 0;
}

.page-products__coverage .img-frame {
  display: block;
  border-radius: 20px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.18);
  padding: 0.75rem;
}

.page-products__coverage .img-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
}

.page-products__coverage figcaption {
  margin-top: 0.875rem;
  color: rgba(245, 240, 230, 0.76);
  font-size: 0.875rem;
  line-height: 1.55;
  text-align: center;
}

/* 延伸阅读 */
.page-products__related {
  padding-block: 1rem 4rem;
}

.page-products__related h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.page-products__related p {
  color: rgba(245, 240, 230, 0.72);
  max-width: 30rem;
  margin: 0 0 1.25rem;
}

.page-products__related .btn--outline {
  color: var(--prod-cream);
  border-color: rgba(245, 240, 230, 0.55);
}

/* 居中响应式 */
@media (min-width: 640px) {
  .page-products__overview-copy,
  .page-products__download-copy {
    padding: 2.25rem 2rem;
  }

  .page-products__band {
    padding: 2.25rem 2rem;
  }

  .page-products__feature-list {
    grid-template-columns: 1fr 1fr;
    gap: 0.625rem 1.25rem;
  }

  .page-products__stats {
    gap: 1rem;
  }

  .page-products__stats .stat {
    padding: 1.125rem 0.625rem;
  }

  .page-products__stats .stat__num {
    font-size: 1.625rem;
  }

  .page-products__band-index {
    font-size: 4rem;
  }
}

@media (min-width: 880px) {
  .page-products__hero {
    padding-block: 4rem 2.5rem;
  }

  .page-products__lead {
    font-size: 1.1875rem;
  }

  .page-products__overview {
    padding-block: 3rem 5rem;
  }

  .page-products__overview-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
  }

  .page-products__phone-wrap {
    justify-self: center;
  }

  .page-products__phone-wrap figcaption {
    max-width: 360px;
  }

  .page-products__features,
  .page-products__download {
    padding-block: 3rem 5rem;
  }

  .page-products__band {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    padding: 2.5rem 2.75rem;
  }

  .page-products__band--reverse .page-products__band-copy {
    order: 2;
  }

  .page-products__band--reverse .page-products__band-media {
    order: 1;
  }

  .page-products__band-copy h3 {
    padding-right: 0;
    margin-bottom: 1rem;
  }

  .page-products__band-copy p {
    font-size: 1.0625rem;
  }

  .page-products__band-media {
    display: flex;
    align-items: center;
  }

  .page-products__device--tablet {
    width: 100%;
  }

  .page-products__download-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .page-products__download-copy {
    position: sticky;
    top: 6.5rem;
  }
}