/* =============================================================
   Site Preloader (全屏高质感页面加载动画)
============================================================= */
.site-preloader {
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #11284b 0%, #0b1d3a 100%);
  color: #ffffff;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.6s cubic-bezier(0.25, 1, 0.5, 1), visibility 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  pointer-events: auto;
}

.site-preloader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}

.preloader-brand {
  margin-bottom: 28px;
  animation: preloaderPulse 2s infinite ease-in-out;
}

.preloader-brand img {
  height: 52px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 16px rgba(220, 163, 44, 0.3));
}

.preloader-spinner-wrap {
  position: relative;
  width: 64px;
  height: 64px;
  margin-bottom: 24px;
}

.preloader-spinner {
  position: absolute;
  inset: 0;
  border: 3px solid rgba(220, 163, 44, 0.15);
  border-top-color: #dca32c;
  border-radius: 50%;
  animation: preloaderSpin 1s infinite linear;
}

.preloader-spinner-inner {
  position: absolute;
  inset: 8px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-bottom-color: #ffd978;
  border-radius: 50%;
  animation: preloaderSpinReverse 1.5s infinite linear;
}

.preloader-bar-wrap {
  width: 180px;
  height: 4px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 14px;
  position: relative;
}

.preloader-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #dca32c, #ffd978);
  border-radius: 2px;
  animation: preloaderBar 1.2s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.preloader-text {
  margin: 0;
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
}

@keyframes preloaderSpin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes preloaderSpinReverse {
  0% { transform: rotate(360deg); }
  100% { transform: rotate(0deg); }
}

@keyframes preloaderPulse {
  0%, 100% { transform: scale(1); opacity: 0.92; }
  50% { transform: scale(1.04); opacity: 1; }
}

@keyframes preloaderBar {
  0% { width: 0%; }
  60% { width: 70%; }
  100% { width: 100%; }
}

/* =============================================================
   Scroll Reveal Animation System (全站滚动视差触发淡入动画)
============================================================= */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 1.25s cubic-bezier(0.16, 1, 0.3, 1), transform 1.25s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-left {
  transform: translateX(-54px);
}

.reveal-right {
  transform: translateX(54px);
}

.reveal-zoom {
  transform: scale(0.9);
}

/* 视口激活状态 */
.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* 无障碍减少动画支持 */
@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* -------------------------------------------------------------
   Hero Banner Swiper & Modern Navigation Controls (精美 Hero Banner 轮播与导航控件)
------------------------------------------------------------- */
.hero-banner {
  position: relative;
  min-height: clamp(500px, 52.9vw, 940px);
  overflow: hidden;
  background: #0b1d3a;
}

.hero-banner .swiper-wrapper,
.hero-banner .swiper-slide {
  height: clamp(500px, 52.9vw, 940px);
}

.hero-banner img {
  display: block;
  width: 100%;
  height: clamp(500px, 52.9vw, 940px);
  object-fit: cover;
  object-position: center center;
}

/* 1. 左右悬浮翻页按钮 (带有玻璃磨砂质感与暖金悬停动效) */
.hero-swiper-btn {
  position: absolute;
  top: 50%;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(44px, 4vw, 62px);
  height: clamp(44px, 4vw, 62px);
  border: 1.5px solid rgba(220, 163, 44, 0.45);
  border-radius: 50%;
  background: rgba(11, 29, 58, 0.48);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: clamp(16px, 1.4vw, 20px);
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transform: translateY(-50%);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-swiper-btn:hover {
  background: #dca32c;
  border-color: #dca32c;
  color: #0b1d3a;
  box-shadow: 0 10px 30px rgba(220, 163, 44, 0.4);
}

.hero-swiper-prev {
  left: clamp(16px, 3.5vw, 60px);
}

.hero-swiper-prev:hover {
  transform: translateY(-50%) translateX(-4px) scale(1.06);
}

.hero-swiper-next {
  right: clamp(16px, 3.5vw, 60px);
}

.hero-swiper-next:hover {
  transform: translateY(-50%) translateX(4px) scale(1.06);
}

/* 2. 底部分页胶囊圆点 (Swiper Pagination Pill Dots) */
.hero-pagination {
  position: absolute;
  left: 50% !important;
  bottom: clamp(20px, 3vw, 42px) !important;
  right: auto !important;
  top: auto !important;
  width: auto !important;
  z-index: 10;
  display: flex !important;
  align-items: center;
  gap: 10px;
  transform: translateX(-50%) !important;
}

.hero-pagination .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  margin: 0 !important;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.25);
  opacity: 1;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-pagination .swiper-pagination-bullet:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: scale(1.2);
}

/* 激活项：长胶囊亮金发光拉伸 */
.hero-pagination .swiper-pagination-bullet-active {
  width: 32px;
  height: 10px;
  border-radius: 10px;
  background: linear-gradient(90deg, #dca32c, #ffd978);
  border-color: #ffd978;
  box-shadow: 0 0 12px rgba(220, 163, 44, 0.6);
}

.products-section {
  position: relative;
  overflow: hidden;
  background: #ffffff;
  color: #1a1a1a;
  padding: clamp(48px, 5vw, 74px) 0 clamp(52px, 5.6vw, 82px);
}

.products-shell {
  /* 缁ф壙鍏ㄥ眬 .container 缁熶竴瀹藉害涓庣暀鐧?*/
}



.products-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: clamp(16px, 1.8vw, 24px);
  row-gap: clamp(44px, 4.5vw, 72px);
}

.product-card {
  position: relative;
  min-width: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  overflow: visible;
  box-shadow: none !important;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: none !important;
}

/* 独占图片框容器 (限定斜光只在图片内划过) */
.product-thumb {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #f8f8f8;
  border: 1px solid #e9e9e9;
}

.product-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.35s ease;
}

/* 真正的 45 度对角全屏大光束 (仅划过图片，从最左上角慢速 2.4s 划过最右下角) */
.product-thumb::before {
  content: "";
  position: absolute;
  top: -100%;
  left: -100%;
  width: 300%;
  height: 300%;
  background: linear-gradient(
    135deg, 
    rgba(255, 255, 255, 0) 0%, 
    rgba(255, 255, 255, 0) 38%, 
    rgba(255, 255, 255, 0.6) 50%, 
    rgba(255, 255, 255, 0) 62%, 
    rgba(255, 255, 255, 0) 100%
  );
  transform: translate(-100%, -100%);
  transition: transform 2.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 3;
  pointer-events: none;
}

.product-card:hover .product-thumb::before {
  transform: translate(100%, 100%);
}

.product-card:hover .product-thumb img {
  transform: scale(1.05);
  filter: brightness(1.02);
}

/* -------------------------------------------------------------
   Products Grid 滚动视差渐显升起与交错加载动效 (Stagger Reveal)
------------------------------------------------------------- */
.products-grid.reveal-on-scroll .product-card {
  opacity: 0;
  transform: translateY(38px) scale(0.98);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
  will-change: opacity, transform;
}

.products-grid.is-revealed .product-card {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* 8 个卡片的阶梯式交错延时 (0.06s 递增) */
.products-grid.is-revealed .product-card:nth-child(1) { transition-delay: 0.04s; }
.products-grid.is-revealed .product-card:nth-child(2) { transition-delay: 0.10s; }
.products-grid.is-revealed .product-card:nth-child(3) { transition-delay: 0.16s; }
.products-grid.is-revealed .product-card:nth-child(4) { transition-delay: 0.22s; }
.products-grid.is-revealed .product-card:nth-child(5) { transition-delay: 0.28s; }
.products-grid.is-revealed .product-card:nth-child(6) { transition-delay: 0.34s; }
.products-grid.is-revealed .product-card:nth-child(7) { transition-delay: 0.40s; }
.products-grid.is-revealed .product-card:nth-child(8) { transition-delay: 0.46s; }

.product-card a {
  display: block;
  padding: 14px 4px 0;
  background: transparent;
  color: #232329;
  font-size: clamp(14px, 1vw, 15px);
  font-weight: 700;
  line-height: 1.35;
  text-align: left;
  transition: color 0.25s ease;
}

.product-card a span {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 40.5px;
  height: 40.5px;
  word-break: break-word;
}

.product-card a:hover,
.product-card:hover a {
  color: #c89429;
}

/* -------------------------------------------------------------
   全站统一标准按钮系统 - 从左往右背景覆盖扫过动画 (0.75s 舒缓平滑版)
------------------------------------------------------------- */
.btn-primary-capsule {
  position: relative;
  overflow: hidden;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 44px;
  padding: 0 32px;
  border: 1.5px solid #dca32c;
  border-radius: 22px;
  background: #ffffff;
  color: #dca32c;
  font-size: 13.5px;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(220, 163, 44, 0.12);
  transition: color 0.45s ease, border-color 0.45s ease, transform 0.35s ease, box-shadow 0.35s ease;
  cursor: pointer;
}

/* 从左往右填满的暖金渐变背景层 */
.btn-primary-capsule::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #dca32c, #f5cb66);
  transform: translateX(-101%);
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1;
}

/* 鼠标悬停：背景从左往右慢速舒缓覆盖滑动扫出 */
.btn-primary-capsule:hover::before {
  transform: translateX(0);
}

.btn-primary-capsule:hover {
  color: #ffffff;
  border-color: #dca32c;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(220, 163, 44, 0.35);
}

.btn-primary-capsule span,
.btn-primary-capsule i {
  position: relative;
  z-index: 2;
  transition: transform 0.35s ease, color 0.45s ease;
}

.btn-primary-capsule:hover span,
.btn-primary-capsule:hover i {
  color: #ffffff;
}

.btn-primary-capsule:hover i {
  transform: translateX(4px);
}

.products-action,
.news-action {
  text-align: center;
  margin-top: clamp(38px, 4vw, 56px);
}



.about-section {
  position: relative;
  overflow: hidden;
  min-height: 810px;
  padding: clamp(74px, 7vw, 104px) 0 clamp(34px, 4vw, 52px);
  background: url('../images/index-aboutbg.png') no-repeat center center / cover;
  color: #35353a;
}

.about-section::before,
.about-section::after {
  display: none;
}

.about-visual {
  display: none;
}



.about-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.about-shell {
  position: relative;
  z-index: 4;
  width: min(100% - 96px, 1550px);
  margin: 0 auto;
}

.about-content {
  width: min(47%, 650px);
}

.about-kicker {
  margin: 0 0 8px;
  color: #f5a623;
  font-size: clamp(13px, 0.95vw, 15px);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.about-kicker::after {
  display: none;
}

.about-content h2 {
  margin: 0 0 16px;
  color: #0b1d3a;
  font-size: clamp(28px, 2.8vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.about-content h2 span {
  display: block;
  color: #0b1d3a;
}

.about-heading-divider {
  margin: 0 0 24px 0;
  max-width: 180px;
}

.about-copy {
  display: grid;
  gap: 18px;
  color: #585b63;
  font-size: clamp(15px, 1.05vw, 17px);
  font-weight: 500;
  line-height: 1.68;
}

.about-copy p {
  margin: 0;
}

.about-actions {
  display: flex;
  align-items: center;
  gap: 44px;
  margin-top: 32px;
}

.watch-video {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: #343438;
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
}

.play-icon {
  width: 54px;
  height: 54px;
  display: inline-grid;
  place-items: center;
  border: 1px solid #dca52d;
  border-radius: 50%;
  color: #dca52d;
  font-size: 21px;
}

.play-icon i {
  transform: translateX(2px);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-top: clamp(64px, 6vw, 92px);
  padding: 36px 26px 30px;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 8px;
  box-shadow: 0 16px 34px rgba(35, 28, 18, 0.12);
}

.stat-item {
  min-width: 0;
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 10px;
  min-height: 150px;
  padding: 0 22px;
  text-align: center;
  color: #55575d;
  border-right: 1px solid rgba(80, 80, 80, 0.18);
}

.stat-item:last-child {
  border-right: 0;
}

.line-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #dca52d;
}

.line-icon svg {
  width: 100%;
  height: 100%;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.stat-item > i {
  color: #dca52d;
  font-size: 38px;
  line-height: 1;
}

.stat-item strong {
  color: #dca52d;
  font-size: clamp(24px, 2vw, 34px);
  font-weight: 700;
  line-height: 1;
}

.stat-item small {
  font-size: 0.45em;
}

.stat-item span {
  font-size: clamp(13px, 1vw, 16px);
  font-weight: 500;
  line-height: 1.35;
}

@media (max-width: 1200px) {
.products-shell {
    width: min(100% - 56px, 980px);
  }

  .products-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .about-section {
    min-height: auto;
  }

  .about-content {
    width: min(52%, 600px);
  }

  .about-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 0 !important;
    padding: 24px 16px !important;
  }

  .stat-item {
    border-right: 1px solid rgba(80, 80, 80, 0.15) !important;
    padding: 16px 10px !important;
    min-height: auto !important;
  }

  /* 每行第 2 个 (偶数项) 取消右边框 */
  .stat-item:nth-child(2n) {
    border-right: 0 !important;
  }

  /* 从第 3 个开始 (第 2 行起) 加上上边框分隔 */
  .stat-item:nth-child(n + 3) {
    border-top: 1px solid rgba(80, 80, 80, 0.15) !important;
    padding-top: 20px !important;
  }
}

/* -------------------------------------------------------------
   Application Section (搴旂敤棰嗗煙妯″潡 - 鎸囧畾鑳屾櫙 index-appbg.png)
------------------------------------------------------------- */
.application-section {
  position: relative;
  background: url('../images/index-appbg.png') no-repeat center center / cover;
  padding: clamp(68px, 6.8vw, 104px) 0 clamp(72px, 7.2vw, 108px);
  color: #1c2738;
  overflow: hidden;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.2vw, 32px);
  margin-top: clamp(34px, 3.8vw, 52px);
}

.app-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.07);
  background: #ffffff;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.app-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(220, 163, 44, 0.2);
}

/* 涓婂崐鍦烘櫙鍥剧墖鍖?*/
.app-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10.2;
  overflow: hidden;
  background: #f0f0f5;
}

.app-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transition: transform 0.4s ease;
}

.app-card:hover .app-media img {
  transform: scale(1.06);
}

/* 涓嬪崐鏆栭噾鑹叉爣棰樺簳鍗?(Gold Tag) */
.app-tag {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  min-height: 52px;
  padding: 13px 16px;
  background: rgba(0, 0, 0, 0.58);
  color: #ffffff;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid rgba(255, 255, 255, 0.26);
  backdrop-filter: blur(8px);
}

.app-tag span {
  color: #ffffff;
  font-size: clamp(14px, 1.05vw, 17px);
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  line-height: 1.25;
}

@media (max-width: 992px) {
  .application-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .application-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .hero-banner,
  .hero-banner .swiper-wrapper,
  .hero-banner .swiper-slide,
  .hero-banner img {
    min-height: 360px;
    height: 58vw;
  }

  .products-shell {
    width: min(100% - 36px, 680px);
  }

  .products-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-card a {
    min-height: 54px;
  }

  .about-section {
    padding-top: 0;
    background: #ffffff;
  }

  .about-section::before,
  .about-section::after {
    display: none;
  }

  .about-visual {
    position: relative;
    width: 100%;
    height: 420px;
  }

  .about-visual::before {
    display: none;
  }

  .about-shell {
    width: min(100% - 36px, 680px);
    padding-top: 44px;
  }

  .about-content {
    width: 100%;
  }

  .about-actions {
    flex-wrap: wrap;
    gap: 18px 28px;
  }

  .about-stats {
    margin-top: 44px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 26px 18px;
  }

  .stat-item,
  .stat-item:nth-child(3) {
    border-right: 1px solid rgba(80, 80, 80, 0.18);
  }

  .stat-item:nth-child(even) {
    border-right: 0;
  }

  .stat-item:nth-child(n + 3) {
    padding-top: 24px;
    border-top: 1px solid rgba(80, 80, 80, 0.18);
  }
}

@media (max-width: 560px) {
  .hero-banner,
  .hero-banner .swiper-wrapper,
  .hero-banner .swiper-slide,
  .hero-banner img {
    min-height: 300px;
    height: 66vw;
  }

  .products-section {
    padding: 44px 0 74px;
  }

  .products-shell {
    width: min(100% - 28px, 360px);
  }

  .products-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .about-visual {
    height: 320px;
  }

  .about-shell {
    width: min(100% - 28px, 360px);
    padding-top: 38px;
  }

  .about-kicker {
    margin-bottom: 18px;
  }

  .about-content h2 {
    font-size: 30px;
  }

  .about-copy {
    font-size: 14px;
    line-height: 1.65;
  }

  .about-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .about-stats {
    grid-template-columns: 1fr;
    padding: 24px 20px;
  }

  .stat-item,
  .stat-item:nth-child(3),
  .stat-item:nth-child(even) {
    min-height: auto;
    padding: 20px 10px;
    border-right: 0;
  }

  .stat-item:first-child {
    padding-top: 0;
  }

  .stat-item:nth-child(n + 2) {
    border-top: 1px solid rgba(80, 80, 80, 0.18);
  }
}

/* -------------------------------------------------------------
   Patents & Certificates Section (涓撳埄涓庤瘉涔︽ā鍧?- 鑳屾櫙浣跨敤 index-cer.bg.png)
------------------------------------------------------------- */
.certificates-section {
  position: relative;
  overflow: hidden;
  background-image: url('../images/index-cer.bg.png');
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  padding: clamp(60px, 6vw, 96px) 0 clamp(70px, 7vw, 106px);
  color: #1c2738;
}

.cert-heading {
  text-align: center;
  margin-bottom: clamp(32px, 3.5vw, 50px);
}

.cert-kicker {
  margin: 0 0 6px;
  color: #c8963e;
  font-size: clamp(13px, 1vw, 15px);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.cert-title {
  margin: 0 0 16px;
  color: #1c2738;
  font-size: clamp(26px, 2.5vw, 38px);
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.cert-diamond {
  position: relative;
  width: 10px;
  height: 10px;
  margin: 0 auto 20px;
  background: #ffd978;
  border: 1px solid #dca32c;
  transform: rotate(45deg);
  box-shadow: 0 0 10px rgba(220, 163, 44, 0.5);
}

.cert-desc {
  max-width: 740px;
  margin: 0 auto;
  color: #55555e;
  font-size: clamp(13.5px, 1vw, 15.5px);
  line-height: 1.65;
  text-align: center;
}

/* -------------------------------------------------------------
   Patents & Certificates Section (专利与证书模块 - 指定背景 index-cer.bg.png)
------------------------------------------------------------- */
.certificates-section {
  position: relative;
  background: url('../images/index-cer.bg.png') no-repeat center center / cover;
  padding: clamp(64px, 6.5vw, 98px) 0 clamp(70px, 7vw, 104px);
  color: #1c2738;
  overflow: hidden;
}

.cert-swiper-container {
  padding: 16px 8px 52px !important;
  overflow: hidden;
  touch-action: auto;
}

.certificate-card {
  position: relative;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.cert-frame {
  position: relative;
  background: #ffffff;
  padding: 6px;
  border: 3px solid #dfb867;
  outline: 1px solid rgba(223, 184, 103, 0.45);
  outline-offset: 3px;
  box-shadow: 0 10px 24px rgba(30, 35, 45, 0.12), 0 2px 6px rgba(0, 0, 0, 0.05);
  border-radius: 2px;
  transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.35s ease, border-color 0.35s ease;
}

.cert-frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4.25;
  object-fit: cover;
  background: #ffffff;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.certificate-card:hover .cert-frame {
  transform: translateY(-8px);
  border-color: #ffd978;
  box-shadow: 0 18px 36px rgba(220, 165, 45, 0.28), 0 4px 12px rgba(0, 0, 0, 0.1);
}

.cert-pagination {
  bottom: 6px !important;
}

.cert-pagination .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background: #bbbbbb;
  opacity: 0.6;
  transition: all 0.25s ease;
}

.cert-pagination .swiper-pagination-bullet-active {
  width: 26px;
  border-radius: 5px;
  background: #dca32c;
  opacity: 1;
}

/* -------------------------------------------------------------
   Our Factory Section (宸ュ巶瀹炴櫙涓庤鏂芥ā鍧?- 鍙傜収鍙傝€冨浘 1:1 鎼缓)
------------------------------------------------------------- */
.factory-section {
  position: relative;
  background: #ffffff;
  padding: clamp(64px, 6.5vw, 98px) 0 clamp(70px, 7vw, 104px);
  color: #1c2738;
}

.factory-carousel-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: clamp(32px, 3.5vw, 48px);
}

.factory-swiper-container {
  flex: 1 1 auto;
  min-width: 0;
  padding-bottom: 50px !important; /* 缁欏垎椤靛渾鐐归鐣欏簳閮ㄧ┖闂?*/
}

/* 宸ュ巶鍗＄墖 (Factory Card) 缁撴瀯 */
.factory-card {
  display: flex;
  flex-direction: column;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  background: #ffffff;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.factory-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 34px rgba(220, 163, 44, 0.2);
}

/* 涓婂崐鍥剧墖鍖?- 4:3 榛勯噾姣斾緥 */
.factory-media {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f0f0f5;
}

.factory-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transition: transform 0.4s ease;
}

.factory-card:hover .factory-media img {
  transform: scale(1.06);
}

/* 涓嬪崐鏆栭噾鑹插簳鍗?(Bottom Info Card) */
.factory-info {
  padding: 16px 14px 18px;
  background: linear-gradient(135deg, #c89429, #dca32c);
  color: #ffffff;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.factory-info .info-line {
  width: 30px;
  height: 2px;
  background: #ffffff;
  margin: 0 auto 8px;
  border-radius: 1px;
  opacity: 0.9;
}

.factory-info .info-title {
  margin: 0;
  color: #ffffff;
  font-size: clamp(16px, 1.15vw, 19px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.3px;
}
}

.factory-info .info-desc {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(12px, 0.9vw, 13.5px);
  font-weight: 500;
  line-height: 1.35;
}

/* 宸﹀彸杞挱鎸夐挳 (Swiper Navigation Buttons) */
.factory-swiper-btn {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  border: 1.5px solid #dca32c;
  background: #ffffff;
  color: #dca32c;
  font-size: 15px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
  transition: all 0.25s ease;
  z-index: 5;
}

.factory-swiper-btn:hover {
  background: #dca32c;
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(220, 163, 44, 0.35);
  transform: scale(1.05);
}

.factory-swiper-btn.swiper-button-disabled {
  opacity: 0.4;
  cursor: not-allowed;
  border-color: #d4d6e0;
  color: #a5a8b5;
}

/* 搴曢儴鍒嗛〉鎸囩ず鍦嗙偣 (Pagination Dots) */
.factory-pagination {
  bottom: 10px !important;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.factory-pagination .swiper-pagination-bullet {
  width: 9px;
  height: 9px;
  margin: 0 !important;
  background: #d4d6e0;
  opacity: 1;
  transition: all 0.25s ease;
}

.factory-pagination .swiper-pagination-bullet-active {
  background: #dca32c;
  transform: scale(1.25);
  box-shadow: 0 0 8px rgba(220, 163, 44, 0.5);
}

/* -------------------------------------------------------------
   News & Insights Section (鏂伴椈涓庢礊瀵熸ā鍧?
------------------------------------------------------------- */
.news-section {
  position: relative;
  background: #ffffff;
  padding: clamp(60px, 6vw, 96px) 0 clamp(70px, 7vw, 106px);
  color: #1c2738;
}

.news-heading {
  text-align: center;
  margin-bottom: clamp(36px, 4vw, 54px);
}

.news-kicker {
  margin: 0 0 6px;
  color: #dca32c;
  font-size: clamp(13px, 1vw, 15px);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.news-title {
  margin: 0 0 16px;
  color: #1c2738;
  font-size: clamp(26px, 2.5vw, 38px);
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.news-diamond {
  position: relative;
  width: 10px;
  height: 10px;
  margin: 0 auto 20px;
  background: #ffd978;
  border: 1px solid #dca32c;
  transform: rotate(45deg);
  box-shadow: 0 0 10px rgba(220, 163, 44, 0.5);
}

.news-desc {
  max-width: 740px;
  margin: 0 auto;
  color: #55555e;
  font-size: clamp(13.5px, 1vw, 15.5px);
  line-height: 1.65;
  text-align: center;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.2vw, 32px);
}

.news-card {
  position: relative;
  background: #ffffff;
  border: 1px solid #edeef2;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(20, 25, 35, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.news-card:hover {
  transform: translateY(-6px);
  border-color: rgba(220, 163, 44, 0.4);
  box-shadow: 0 16px 36px rgba(20, 25, 35, 0.1);
}

.news-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10.5;
  overflow: hidden;
  background: #f4f5f8;
}

.news-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.news-card:hover .news-media img {
  transform: scale(1.06);
}

.news-body {
  padding: 18px 20px 20px;
  background: #ffffff;
}

.news-card-title {
  margin: 0 0 16px;
  font-size: clamp(14px, 1.05vw, 16px);
  font-weight: 700;
  line-height: 1.45;
}

.news-card-title a {
  color: #1c2738;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}

.news-card-title a:hover,
.news-card:hover .news-card-title a {
  color: #dca32c;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid #f0f1f5;
  font-size: 13px;
}

.news-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #777782;
  font-weight: 500;
}

.news-date i {
  color: #9999a3;
  font-size: 14px;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #dca32c;
  font-weight: 700;
  transition: color 0.2s ease;
}

.news-link i {
  font-size: 12px;
  transition: transform 0.25s ease;
}

.news-card:hover .news-link i {
  transform: translateX(4px);
}

.news-action {
  text-align: center;
  margin-top: clamp(36px, 4vw, 54px);
}

.view-all-news-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 32px;
  border: 1.5px solid #dca32c;
  border-radius: 24px;
  background: #ffffff;
  color: #dca32c;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  box-shadow: 0 4px 12px rgba(220, 163, 44, 0.1);
  transition: all 0.25s ease;
}

.view-all-news-btn:hover {
  background: linear-gradient(135deg, #dca32c, #e9bc54);
  border-color: transparent;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(220, 163, 44, 0.3);
}

.view-all-news-btn i {
  font-size: 11px;
  transition: transform 0.25s ease;
}

.view-all-news-btn:hover i {
  transform: translateX(4px);
}

@media (max-width: 992px) {
  .news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================================
   Mobile Drawer Sidebar System (移动端抽屉式侧边栏导航菜单)
============================================================= */

/* 1. 顶栏汉堡包 toggle 按钮 (现代精美动效) */
.mobile-menu-toggle {
  display: none;
  position: relative;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: #ffffff;
  border: 1.5px solid #dca32c;
  border-radius: 8px;
  cursor: pointer;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(220, 163, 44, 0.18);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu-toggle:hover {
  background: rgba(220, 163, 44, 0.08);
  transform: scale(1.04);
}

.hamburger-bar {
  display: block;
  width: 20px;
  height: 2.2px;
  background-color: #0b1d3a;
  border-radius: 4px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease, background-color 0.3s ease;
}

/* 点击/打开时的 X 变型转换 */
.mobile-menu-toggle.is-open .hamburger-bar:nth-child(1) {
  transform: translateY(7.2px) rotate(45deg);
  background-color: #dca32c;
}

.mobile-menu-toggle.is-open .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.mobile-menu-toggle.is-open .hamburger-bar:nth-child(3) {
  transform: translateY(-7.2px) rotate(-45deg);
  background-color: #dca32c;
}

/* 2. 锁定背景页面滚动 */
body.drawer-active {
  overflow: hidden !important;
}

/* 3. 抽屉毛玻璃背景遮罩 */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 29, 58, 0.68);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.42s ease, visibility 0.42s ease;
  z-index: 9998;
}

.mobile-drawer-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

/* 4. 抽屉侧边栏主体面板 (改在左侧 + 纯白背景) */
.mobile-drawer-panel {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(85vw, 340px);
  background: #ffffff;
  box-shadow: 10px 0 36px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  transform: translateX(-105%);
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 9999;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-drawer-panel.is-active {
  transform: translateX(0);
}

/* 抽屉头部 Header */
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid #f0f1f5;
  background: #ffffff;
}

.drawer-brand img {
  height: 38px;
  width: auto;
  display: block;
}

.drawer-close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid #e5e7eb;
  border-radius: 50%;
  background: #f8fafc;
  color: #1b2537;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.drawer-close-btn:hover {
  background: #dca32c;
  border-color: #dca32c;
  color: #ffffff;
  transform: rotate(90deg);
}

/* 抽屉导航链接列表与二级菜单层级 */
.drawer-nav {
  display: flex;
  flex-direction: column;
  padding: 12px 0;
  flex: 1;
}

.drawer-nav-group {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.drawer-nav-parent {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.drawer-nav-parent .drawer-nav-item {
  flex: 1;
}

.submenu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-right: 12px;
  background: transparent;
  border: 0;
  color: #6b7280;
  font-size: 13px;
  cursor: pointer;
  transition: color 0.25s ease, transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.submenu-toggle:hover {
  color: #dca32c;
}

.drawer-nav-group.is-expanded .submenu-toggle {
  transform: rotate(180deg);
  color: #dca32c;
}

.drawer-nav-item {
  display: flex;
  align-items: center;
  padding: 13px 26px;
  color: #2c3647;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all 0.25s ease;
}

.drawer-nav-item:hover,
.drawer-nav-item.is-active {
  color: #dca32c;
  background: rgba(220, 163, 44, 0.08);
  border-left-color: #dca32c;
}

/* 移动端二级子菜单手风琴精细美化 */
.drawer-submenu {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 0;
  overflow: hidden;
  background: #f8fafc;
  border-left: 3px solid #cbd5e1;
  margin: 4px 18px 8px 26px;
  padding: 0 10px;
  border-radius: 0 8px 8px 0;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.3s ease;
}

.drawer-nav-group.is-expanded .drawer-submenu {
  max-height: 380px;
  padding: 8px 10px;
  border-left-color: #dca32c;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.03);
}

.drawer-submenu-item {
  position: relative;
  display: flex;
  align-items: center;
  padding: 12px 14px 12px 24px;
  color: #475569;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.22s ease;
}

.drawer-submenu-item::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #94a3b8;
  transition: background 0.2s ease, transform 0.2s ease;
}

.drawer-submenu-item:hover {
  color: #dca32c;
  background: #ffffff;
  padding-left: 26px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.drawer-submenu-item:hover::before {
  background: #dca32c;
  transform: translateY(-50%) scale(1.5);
}

/* 抽屉底部联系信息与 CTA */
.drawer-footer {
  padding: 24px;
  border-top: 1px solid #f0f1f5;
  background: #fdfdfd;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.drawer-contact-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.drawer-contact-row {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #4b5563;
  font-size: 13.5px;
  text-decoration: none;
  transition: color 0.25s ease;
}

.drawer-contact-row i {
  color: #dca32c;
  font-size: 14px;
}

.drawer-contact-row:hover {
  color: #dca32c;
}

.drawer-cta-btn {
  width: 100%;
  height: 42px;
  font-size: 12.5px;
}

/* 响应式断点显示控制 (< 992px 移动端导航栏：默认纯白背景、Logo 尺寸自适应防换行、汉堡包高亮清晰) */
@media (max-width: 992px) {
  /* 1. 隐藏桌面端 Top Bar 与导航链接 */
  .top-bar {
    display: none !important;
  }

  .nav-links {
    display: none !important;
  }

  /* 2. 移动端 Header & Main Nav 默认显示纯白色背景 */
  .site-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    background: #ffffff !important;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08) !important;
    border-bottom: 1px solid #eaeaea !important;
  }

  .main-nav {
    background: #ffffff !important;
    padding: 0 !important;
  }

  .main-nav__inner {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    min-height: 58px !important;
    height: 58px !important;
    padding: 0 16px !important;
    gap: 0 !important;
  }

  /* 3. 彻底解决 .brand 宽度过宽导致换行的问题 */
  .brand {
    flex: 0 1 auto !important;
    width: auto !important;
    max-width: 65% !important;
    min-width: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    margin: 0 !important;
  }

  .brand img {
    height: 32px !important;
    max-height: 32px !important;
    width: auto !important;
    max-width: 100% !important;
    object-fit: contain !important;
    mix-blend-mode: normal !important;
    filter: none !important;
  }

  /* 4. 汉堡包按钮：默认状态清晰突出 (暖金边框 + 醒目深色横杠) */
  .mobile-menu-toggle {
    display: flex !important;
    flex: 0 0 auto !important;
    margin-left: auto !important;
    width: 40px !important;
    height: 38px !important;
    padding: 8px 6px !important;
    background: #ffffff !important;
    border: 1.5px solid #dca32c !important;
    border-radius: 6px !important;
    box-shadow: 0 2px 6px rgba(220, 163, 44, 0.15) !important;
  }

  .hamburger-bar {
    display: block !important;
    width: 100% !important;
    height: 2.5px !important;
    background-color: #0b1d3a !important;
    border-radius: 2px !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  /* 悬停/点击激活时横杠变暖金色 */
  .mobile-menu-toggle:hover .hamburger-bar,
  .mobile-menu-toggle:active .hamburger-bar {
    background-color: #dca32c !important;
  }

  /* 5. 移动端产品网格：一行显示 2 个产品 (2-Column Mobile Product Grid) */
  .products-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    column-gap: clamp(10px, 2.5vw, 18px) !important;
    row-gap: clamp(20px, 4vw, 32px) !important;
  }
}

@media (max-width: 576px) {
  .products-shell {
    width: min(100% - 24px, 980px) !important;
  }

  .products-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    column-gap: 10px !important;
    row-gap: 20px !important;
  }

  .product-card a {
    padding: 10px 2px 0 !important;
    font-size: 13px !important;
    line-height: 1.3 !important;
  }

  .product-card a span {
    min-height: 34px !important;
    height: 34px !important;
  }
}