/* ════════════════════════════════════════════════════════════════
   PAGES STYLES - 页面通用样式
   包含：页面头部、粘性导航、产品网格、表单样式等
════════════════════════════════════════════════════════════════ */

/* ════════════════════════════════════════════════════════════════
   PAGE HEADER - 页面头部横幅
════════════════════════════════════════════════════════════════ */
#page-header {
  position: relative;
  min-height: 400px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1565C0 0%, #0D47A1 60%, #0A2E6E 100%);
  padding-top: 120px;
  padding-bottom: 4rem;
  overflow: hidden;
}
.page-header-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://media.base44.com/images/public/69d4935f66a37d69b53f0f3d/018709eb2_generated_e5c2dc89.png');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}
.page-header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(21,101,192,.85) 0%, rgba(21,101,192,.6) 100%);
}
.page-header-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
}
.page-header-content .label {
  color: rgba(255,255,255,.7);
}
.page-header-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: #fff;
  margin-top: 1rem;
  line-height: 1.1;
}
.page-header-content p {
  color: rgba(255,255,255,.8);
  font-size: 1.125rem;
  margin-top: 1.25rem;
  line-height: 1.7;
}

/* ════════════════════════════════════════════════════════════════
   STICKY NAVIGATION - 粘性产品导航
════════════════════════════════════════════════════════════════ */
#product-nav {
  background: var(--card);
  border-bottom: .5px solid var(--border);
  position: sticky;
  top: 64px;
  z-index: 50;
}
.product-nav-inner {
  display: flex;
  gap: .5rem;
  padding: 1rem 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.product-nav-inner::-webkit-scrollbar { display: none; }
.product-nav-link {
  padding: .5rem 1rem;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  border-radius: 8px;
  white-space: nowrap;
  transition: color .2s, background .2s;
}
.product-nav-link:hover {
  color: var(--primary);
  background: var(--cyan);
}

/* ════════════════════════════════════════════════════════════════
   PRODUCT SECTIONS - 产品区块
════════════════════════════════════════════════════════════════ */
.product-section {
  padding: 5rem 0;
  border-bottom: .5px solid var(--border);
}
.product-section.section--alt {
  background: var(--card);
}

/* ════════════════════════════════════════════════════════════════
   PRODUCT GRID & CARDS - 产品网格和卡片
════════════════════════════════════════════════════════════════ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1023px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .product-grid { grid-template-columns: 1fr; }
}

.product-card {
  background: var(--bg);
  border-radius: 16px;
  border: .5px solid var(--border);
  overflow: hidden;
  transition: border-color .4s, box-shadow .4s, transform .3s;
}
.product-card:hover {
  border-color: rgba(21,101,192,.2);
  box-shadow: 0 12px 40px rgba(21,101,192,.08);
  transform: translateY(-4px);
}
.product-img-wrap {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform .5s;
}
.product-card:hover .product-img-wrap img {
  transform: scale(1.05);
}
.product-body {
  padding: 1.5rem;
}
.product-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
}
.product-body p {
  color: var(--muted);
  font-size: 13px;
  margin-top: .5rem;
  line-height: 1.6;
}
.product-specs {
  display: flex;
  gap: .5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}
.spec-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(21,101,192,.06);
  padding: .25rem .625rem;
  border-radius: 4px;
}
.product-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 1.25rem;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  transition: gap .2s;
}
.product-link svg {
  width: 14px;
  height: 14px;
  transition: transform .2s;
}
.product-link:hover {
  gap: 8px;
}
.product-link:hover svg {
  transform: translateX(4px);
}

/* ════════════════════════════════════════════════════════════════
   CASES PAGE - 案例页面
════════════════════════════════════════════════════════════════ */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
@media (max-width: 768px) {
  .cases-grid { grid-template-columns: 1fr; }
}

.case-card {
  background: var(--card);
  border-radius: 20px;
  border: .5px solid var(--border);
  overflow: hidden;
  transition: border-color .4s, box-shadow .4s, transform .3s;
}
.case-card:hover {
  border-color: rgba(21,101,192,.2);
  box-shadow: 0 16px 50px rgba(21,101,192,.1);
  transform: translateY(-4px);
}
.case-img-wrap {
  aspect-ratio: 16/10;
  overflow: hidden;
  position: relative;
}
.case-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s;
}
.case-card:hover .case-img-wrap img {
  transform: scale(1.05);
}
.case-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30,41,59,.8) 0%, transparent 50%);
}
.case-location {
  position: absolute;
  bottom: 1rem;
  left: 1.5rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  color: #fff;
  font-size: 13px;
}
.case-location svg {
  width: 16px;
  height: 16px;
}
.case-body {
  padding: 1.75rem;
}
.case-industry {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--primary);
}
.case-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--fg);
  margin-top: .5rem;
}
.case-body p {
  color: var(--muted);
  font-size: 14px;
  margin-top: .75rem;
  line-height: 1.6;
}
.case-stats {
  display: flex;
  gap: 2rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: .5px solid var(--border);
}
.case-stat {
  text-align: center;
}
.case-stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--fg);
}
.case-stat-label {
  font-size: 11px;
  color: var(--muted);
  margin-top: .25rem;
}

/* ════════════════════════════════════════════════════════════════
   ABOUT PAGE - 关于我们页面
════════════════════════════════════════════════════════════════ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
@media (max-width: 900px) {
  .about-intro { grid-template-columns: 1fr; }
}
.about-intro-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--fg);
}
.about-intro-content p {
  color: var(--muted);
  margin-top: 1rem;
  line-height: 1.8;
}
.about-intro-img {
  border-radius: 20px;
  overflow: hidden;
}
.about-intro-img img {
  width: 100%;
  height: auto;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1023px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .services-grid { grid-template-columns: 1fr; }
}

.service-card {
  background: var(--card);
  border-radius: 16px;
  border: .5px solid var(--border);
  padding: 2rem;
  transition: border-color .4s, box-shadow .4s, transform .3s;
}
.service-card:hover {
  border-color: rgba(21,101,192,.2);
  box-shadow: 0 12px 40px rgba(21,101,192,.08);
  transform: translateY(-4px);
}
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.service-icon svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}
.service-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
}
.service-card p {
  color: var(--muted);
  font-size: 13px;
  margin-top: .5rem;
  line-height: 1.6;
}

/* Certifications */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1023px) {
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .certs-grid { grid-template-columns: 1fr; }
}

.cert-card {
  background: var(--card);
  border-radius: 16px;
  border: .5px solid var(--border);
  padding: 2rem;
  text-align: center;
  transition: border-color .4s, box-shadow .4s;
}
.cert-card:hover {
  border-color: rgba(21,101,192,.2);
  box-shadow: 0 12px 40px rgba(21,101,192,.08);
}
.cert-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  background: var(--cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cert-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}
.cert-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--fg);
}
.cert-card p {
  color: var(--muted);
  font-size: 12px;
  margin-top: .5rem;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card);
  border-radius: 12px;
  border: .5px solid var(--border);
  margin-bottom: 1rem;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 15px;
  color: var(--fg);
  transition: background .2s;
}
.faq-question:hover {
  background: var(--bg);
}
.faq-question svg {
  width: 20px;
  height: 20px;
  color: var(--muted);
  transition: transform .3s;
}
.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
}
.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem;
}
.faq-answer p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ════════════════════════════════════════════════════════════════
   RESOURCES PAGE - 资源页面
════════════════════════════════════════════════════════════════ */
.resources-tabs {
  display: flex;
  gap: .5rem;
  margin-bottom: 2.5rem;
  border-bottom: .5px solid var(--border);
  padding-bottom: 1rem;
}
.resource-tab {
  padding: .625rem 1.25rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: var(--muted);
  border-radius: 8px;
  transition: color .2s, background .2s;
}
.resource-tab:hover {
  color: var(--fg);
  background: var(--cyan);
}
.resource-tab.active {
  color: #fff;
  background: var(--primary);
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1023px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .blog-grid { grid-template-columns: 1fr; }
}

.blog-card {
  background: var(--card);
  border-radius: 16px;
  border: .5px solid var(--border);
  overflow: hidden;
  transition: border-color .4s, box-shadow .4s, transform .3s;
}
.blog-card:hover {
  border-color: rgba(21,101,192,.2);
  box-shadow: 0 12px 40px rgba(21,101,192,.08);
  transform: translateY(-4px);
}
.blog-img-wrap {
  aspect-ratio: 16/10;
  overflow: hidden;
}
.blog-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.blog-card:hover .blog-img-wrap img {
  transform: scale(1.05);
}
.blog-body {
  padding: 1.5rem;
}
.blog-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: .75rem;
}
.blog-category {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(21,101,192,.06);
  padding: .25rem .625rem;
  border-radius: 4px;
}
.blog-date {
  font-size: 12px;
  color: var(--muted);
}
.blog-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
  line-height: 1.4;
  transition: color .2s;
}
.blog-card:hover .blog-body h3 {
  color: var(--primary);
}
.blog-body p {
  color: var(--muted);
  font-size: 13px;
  margin-top: .5rem;
  line-height: 1.6;
}

/* Catalog Grid */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1023px) {
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .catalog-grid { grid-template-columns: 1fr; }
}

.catalog-card {
  background: var(--card);
  border-radius: 16px;
  border: .5px solid var(--border);
  padding: 2rem;
  text-align: center;
  transition: border-color .4s, box-shadow .4s, transform .3s;
}
.catalog-card:hover {
  border-color: rgba(21,101,192,.2);
  box-shadow: 0 12px 40px rgba(21,101,192,.08);
  transform: translateY(-4px);
}
.catalog-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 1.25rem;
  background: var(--cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.catalog-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}
.catalog-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--fg);
}
.catalog-card p {
  color: var(--muted);
  font-size: 12px;
  margin-top: .5rem;
  margin-bottom: 1.25rem;
}
.catalog-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .625rem 1.25rem;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  border-radius: 8px;
  transition: background .2s;
}
.catalog-btn:hover {
  background: #0D47A1;
}

/* Video Grid */
.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (max-width: 768px) {
  .video-grid { grid-template-columns: 1fr; }
}

.video-card {
  background: var(--card);
  border-radius: 16px;
  border: .5px solid var(--border);
  overflow: hidden;
  transition: border-color .4s, box-shadow .4s;
}
.video-card:hover {
  border-color: rgba(21,101,192,.2);
  box-shadow: 0 12px 40px rgba(21,101,192,.08);
}
.video-thumb {
  aspect-ratio: 16/9;
  position: relative;
  overflow: hidden;
  background: var(--fg);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .8;
  transition: opacity .3s, transform .5s;
}
.video-card:hover .video-thumb img {
  opacity: .6;
  transform: scale(1.05);
}
.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .3s, background .3s;
}
.video-card:hover .video-play-btn {
  transform: translate(-50%, -50%) scale(1.1);
  background: #fff;
}
.video-play-btn svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
  margin-left: 4px;
}
.video-info {
  padding: 1.25rem;
}
.video-duration {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: .5rem;
}
.video-info h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--fg);
}

/* ════════════════════════════════════════════════════════════════
   CONTACT PAGE - 联系页面
════════════════════════════════════════════════════════════════ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
}
@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; }
}

.contact-info h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--fg);
}
.contact-info > p {
  color: var(--muted);
  margin-top: 1rem;
  line-height: 1.7;
}

.contact-methods {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.contact-method {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.contact-method-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-method-icon svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}
.contact-method-content h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: var(--fg);
}
.contact-method-content p {
  color: var(--muted);
  font-size: 13px;
  margin-top: .25rem;
}
.contact-method-content a {
  color: var(--primary);
  font-weight: 500;
}

/* Contact Form */
.contact-form-wrap {
  background: var(--card);
  border-radius: 20px;
  border: .5px solid var(--border);
  padding: 2.5rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
@media (max-width: 500px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-group {
  margin-bottom: 1rem;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: .5rem;
}
.form-group label span {
  color: var(--primary);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: .5px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  color: var(--fg);
  background: var(--bg);
  transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(21,101,192,.1);
}
.form-group textarea {
  min-height: 120px;
  resize: vertical;
}
.form-submit {
  width: 100%;
  padding: 1rem;
  background: var(--primary);
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 15px;
  border-radius: 10px;
  transition: background .2s, transform .15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}
.form-submit:hover {
  background: #0D47A1;
  transform: translateY(-1px);
}
.form-submit svg {
  width: 18px;
  height: 18px;
}

/* Map Section */
.map-section {
  height: 400px;
  background: var(--fg);
  position: relative;
  overflow: hidden;
}
.map-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  color: rgba(255,255,255,.5);
}
.map-placeholder svg {
  width: 48px;
  height: 48px;
}
.map-placeholder p {
  font-size: 14px;
}

/* ════════════════════════════════════════════════════════════════
   INDUSTRIES PAGE - 行业页面
════════════════════════════════════════════════════════════════ */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (max-width: 768px) {
  .industries-grid { grid-template-columns: 1fr; }
}

.industry-card {
  background: var(--card);
  border-radius: 20px;
  border: .5px solid var(--border);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  transition: border-color .4s, box-shadow .4s;
}
@media (max-width: 600px) {
  .industry-card { grid-template-columns: 1fr; }
}
.industry-card:hover {
  border-color: rgba(21,101,192,.2);
  box-shadow: 0 16px 50px rgba(21,101,192,.1);
}
.industry-card-img {
  aspect-ratio: 1;
  overflow: hidden;
}
.industry-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.industry-card:hover .industry-card-img img {
  transform: scale(1.05);
}
.industry-card-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.industry-card-content h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--fg);
}
.industry-card-content p {
  color: var(--muted);
  font-size: 13px;
  margin-top: .75rem;
  line-height: 1.6;
}
.industry-products {
  margin-top: 1.25rem;
}
.industry-products .spec-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--muted);
}
.industry-products .spec-val {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--fg);
  margin-top: .25rem;
}
.industry-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 1.25rem;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  transition: gap .2s;
}
.industry-link:hover {
  gap: 8px;
}
.industry-link svg {
  width: 14px;
  height: 14px;
}
/* v202604211532 */
/* updated-154632 */