/* ===== 服务项目页专属样式 ===== */
.page-products {
  --ps-orange: #FF6B35;
  --ps-blue: #1A73E8;
  --ps-gold: #FFD700;
  --ps-dark: #1C1C1E;
  --ps-light: #F5F5F7;
  --ps-white: #FFFFFF;
  --ps-text: #333333;
  --ps-gray: #8E8E93;
  --ps-radius-card: 20px;
  --ps-radius-btn: 48px;
  --ps-shadow-card: 0 4px 20px rgba(0,0,0,0.06);
  --ps-shadow-card-hover: 0 12px 40px rgba(0,0,0,0.12);
  --ps-transition: 0.35s cubic-bezier(0.4,0,0.2,1);
}

/* 首屏色块标题 */
.ps-hero {
  position: relative;
  background: var(--ps-orange);
  padding: 3rem 0 2.5rem;
  overflow: hidden;
  margin-top: 0;
}
.ps-hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--ps-orange) 40%, #e85d2c 100%);
  clip-path: polygon(0 0, 100% 0, 85% 100%, 0 100%);
  z-index: 0;
}
.ps-hero-inner {
  position: relative;
  z-index: 1;
}
.ps-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.8);
}
.ps-breadcrumb-link {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: color var(--ps-transition);
}
.ps-breadcrumb-link:hover,
.ps-breadcrumb-link:focus-visible {
  color: var(--ps-white);
  text-decoration: underline;
}
.ps-breadcrumb-sep {
  color: rgba(255,255,255,0.5);
  user-select: none;
}
.ps-breadcrumb-current {
  color: var(--ps-white);
  font-weight: 600;
}
.ps-hero-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--ps-white);
  line-height: 1.1;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.ps-hero-sub {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1.125rem;
  color: rgba(255,255,255,0.9);
  line-height: 1.5;
  max-width: 32rem;
  margin: 0;
}

/* 服务卡片区域 */
.ps-cards {
  padding: 3rem 0 2rem;
  background: var(--ps-light);
}
.ps-section-label {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ps-gray);
  margin: 0 0 1.5rem;
}
.ps-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.ps-card {
  background: var(--ps-white);
  border-radius: var(--ps-radius-card);
  box-shadow: var(--ps-shadow-card);
  overflow: hidden;
  transition: transform var(--ps-transition), box-shadow var(--ps-transition);
  display: flex;
  flex-direction: column;
}
.ps-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--ps-shadow-card-hover);
}
.ps-card:focus-within {
  transform: translateY(-6px);
  box-shadow: var(--ps-shadow-card-hover);
}
.ps-card-figure {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--ps-light);
}
.ps-card-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--ps-transition);
}
.ps-card:hover .ps-card-img,
.ps-card:focus-within .ps-card-img {
  transform: scale(1.05);
}
.ps-card-img-main {
  /* 首屏主图不延迟加载 */
}
.ps-card-body {
  padding: 1.25rem 1.25rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.ps-card-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ps-text);
  margin: 0 0 0.5rem;
  line-height: 1.3;
}
.ps-card-desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9375rem;
  color: var(--ps-gray);
  line-height: 1.6;
  margin: 0 0 1rem;
  flex: 1;
}
.ps-card-details {
  margin-top: auto;
}
.ps-card-summary {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ps-blue);
  cursor: pointer;
  padding: 0.25rem 0;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: color var(--ps-transition);
  border-bottom: 2px solid transparent;
}
.ps-card-summary::-webkit-details-marker {
  display: none;
}
.ps-card-summary::before {
  content: "+";
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1;
  transition: transform var(--ps-transition);
}
.ps-card-details[open] .ps-card-summary::before {
  content: "−";
}
.ps-card-summary:hover,
.ps-card-summary:focus-visible {
  color: var(--ps-orange);
  border-bottom-color: var(--ps-orange);
}
.ps-card-detail-content {
  padding: 0.75rem 0 0;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.875rem;
  color: var(--ps-text);
  line-height: 1.7;
  border-top: 1px solid rgba(0,0,0,0.06);
  margin-top: 0.5rem;
}
.ps-card-detail-content p {
  margin: 0;
}

/* 评测特色 */
.ps-features {
  padding: 3rem 0;
  background: var(--ps-blue);
  color: var(--ps-white);
}
.ps-section-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 2rem;
  font-weight: 800;
  color: var(--ps-text);
  margin: 0 0 1rem;
  line-height: 1.2;
}
.ps-section-title-light {
  color: var(--ps-white);
}
.ps-features-intro {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
  max-width: 36rem;
  margin: 0 0 2rem;
}
.ps-features-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.ps-feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.ps-feature-num {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--ps-gold);
  line-height: 1.1;
  flex-shrink: 0;
  min-width: 2.5rem;
}
.ps-feature-text {
  flex: 1;
}
.ps-feature-heading {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ps-white);
  margin: 0 0 0.25rem;
  line-height: 1.3;
}
.ps-feature-desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.82);
  line-height: 1.6;
  margin: 0;
}

/* 移动端优势 */
.ps-mobile {
  padding: 3rem 0;
  background: var(--ps-light);
}
.ps-mobile-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}
.ps-mobile-text {
  flex: 1;
}
.ps-mobile-desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1rem;
  color: var(--ps-text);
  line-height: 1.7;
  margin: 0 0 1.25rem;
  max-width: 36rem;
}
.ps-mobile-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.ps-mobile-item {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9375rem;
  color: var(--ps-text);
  line-height: 1.5;
  padding-left: 1.5rem;
  position: relative;
}
.ps-mobile-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--ps-orange);
}
.ps-mobile-link {
  display: inline-block;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ps-blue);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color var(--ps-transition), border-color var(--ps-transition);
}
.ps-mobile-link:hover,
.ps-mobile-link:focus-visible {
  color: var(--ps-orange);
  border-bottom-color: var(--ps-orange);
}
.ps-mobile-visual {
  flex-shrink: 0;
  width: 100%;
  max-width: 280px;
}
.ps-mobile-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--ps-radius-card);
  box-shadow: var(--ps-shadow-card);
}

/* 使用入口 */
.ps-cta {
  position: relative;
  padding: 3.5rem 0;
  overflow: hidden;
  background: var(--ps-dark);
}
.ps-cta-bg-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.ps-cta-bg-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}
.ps-cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--ps-white);
}
.ps-cta-text {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
  max-width: 28rem;
  margin: 0 auto 1.75rem;
}
.ps-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.ps-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  padding: 0.875rem 2.25rem;
  border-radius: var(--ps-radius-btn);
  transition: transform var(--ps-transition), box-shadow var(--ps-transition), background var(--ps-transition), border-color var(--ps-transition);
  cursor: pointer;
  border: 2px solid transparent;
  min-height: 48px;
}
.ps-btn:hover,
.ps-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.ps-btn-primary {
  background: var(--ps-orange);
  color: var(--ps-white);
  border-color: var(--ps-orange);
}
.ps-btn-primary:hover,
.ps-btn-primary:focus-visible {
  background: #e55d2b;
  border-color: #e55d2b;
}
.ps-btn-secondary {
  background: transparent;
  color: var(--ps-white);
  border-color: var(--ps-white);
}
.ps-btn-secondary:hover,
.ps-btn-secondary:focus-visible {
  background: rgba(255,255,255,0.12);
  border-color: var(--ps-gold);
  color: var(--ps-gold);
}
.ps-cta-note {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.5;
  max-width: 28rem;
  margin: 0 auto;
}

/* ===== 响应式 ===== */
/* ≥640px */
@media (min-width: 640px) {
  .ps-hero {
    padding: 4rem 0 3rem;
  }
  .ps-hero-title {
    font-size: 3rem;
  }
  .ps-cards {
    padding: 4rem 0 3rem;
  }
  .ps-cards-grid {
    grid-template-columns: 1fr 1fr;
  }
  .ps-card-wide {
    grid-column: 1 / -1;
  }
  .ps-features {
    padding: 4rem 0;
  }
  .ps-features-list {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .ps-mobile {
    padding: 4rem 0;
  }
  .ps-section-title {
    font-size: 2.25rem;
  }
  .ps-cta {
    padding: 4.5rem 0;
  }
}

/* ≥1024px 桌面 */
@media (min-width: 1024px) {
  .ps-hero {
    padding: 5rem 0 4rem;
  }
  .ps-hero-title {
    font-size: 4rem;
  }
  .ps-hero-sub {
    font-size: 1.25rem;
  }
  .ps-cards {
    padding: 5rem 0 4rem;
  }
  .ps-cards-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
  }
  .ps-card-wide {
    grid-column: span 2;
  }
  .ps-card-body {
    padding: 1.5rem 1.5rem 1.75rem;
  }
  .ps-card-title {
    font-size: 1.375rem;
  }
  .ps-features {
    padding: 5rem 0;
  }
  .ps-features-list {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    max-width: 48rem;
  }
  .ps-features-intro {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
  }
  .ps-mobile {
    padding: 5rem 0;
  }
  .ps-mobile-wrapper {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }
  .ps-mobile-visual {
    max-width: 260px;
    order: 1;
  }
  .ps-mobile-text {
    order: 0;
  }
  .ps-section-title {
    font-size: 2.5rem;
  }
  .ps-cta {
    padding: 5rem 0;
  }
  .ps-cta-text {
    font-size: 1.125rem;
  }
  .ps-btn {
    font-size: 1.0625rem;
    padding: 1rem 2.5rem;
  }
}

/* ≥1280px 宽屏 */
@media (min-width: 1280px) {
  .ps-hero {
    padding: 6rem 0 5rem;
  }
  .ps-hero-title {
    font-size: 4.5rem;
  }
  .ps-cards-grid {
    gap: 1.75rem;
  }
  .ps-features-list {
    gap: 3rem;
  }
  .ps-mobile-visual {
    max-width: 300px;
  }
}