.wow {
  visibility: hidden;
}
.video-controller a:hover {
  opacity: 0.6;
}
.video-controller a.disabled {
  pointer-events: none;
  cursor: not-allowed;
  color: darkgray;
}
.video-controller a {
  cursor: pointer;
  color: black;
}
.project_block .swiper .swiper-slide img,
.about_block2 .swiper .swiper-slide img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.project_block .swiper {
  padding-bottom: 20px;
}
.about_block2 .swiper {
  width: 100%;
  padding-bottom: 15px;
}
.swiper-pagination-bullet-active {
  background-color: #e2791d !important;
  opacity: 1;
}
.about_block2 .swiper-pagination-bullet {
  background: white;
  opacity: 1;
}
.swiper-pagination {
  top: unset !important;
  bottom: unset !important;
  left: unset !important;
}

/* products_txt_content - 产品特点卡片 */
.products_txt_content {
  margin-top: 2vh;
}
.products_intro {
  font-size: 1.8rem !important;
  line-height: 1.3 !important;
  color: #555;
  margin-bottom: 6vh;
  letter-spacing: 0.02em;
  border-left: 3px solid #e2791d;
  padding-left: 1.2vw;
}
.products_features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3vh 10px;
}
.feature_item {
  display: flex;
  align-items: flex-start;
  padding: 2vh 1.2vw;
  border: 1px solid #e8e0d8;
  border-radius: 4px;
  transition: all 0.4s ease;
  background: transparent;
}
.feature_item:hover {
  border-color: #e2791d;
  background: rgba(226, 121, 29, 0.03);
  transform: translateY(-3px);
}
.feature_number {
  font-size: 3.2rem;
  font-weight: 700;
  color: #e2791d;
  opacity: 0.25;
  line-height: 1;
  margin-right: 1vw;
  flex-shrink: 0;
  font-family: "Oswald", sans-serif;
}
.feature_body h4 {
  font-size: 1.6rem;
  font-weight: 600;
  color: #614f42;
  margin-bottom: 0.6vh;
  letter-spacing: 0.03em;
}
.feature_body p {
  font-size: 1.3rem !important;
  line-height: 1.7;
  color: #666;
  font-weight: 400 !important;
}
.feature_body .highlight {
  font-size: 2.2rem !important;
  font-weight: 700;
  color: #e2791d;
  padding: 0 4px;
}

/* products3_content - 简洁纵向列表 + 渐进动画 */
.products3_content {
  margin-top: 1.5vh;
  padding: 0 1vw;
}
.products3_intro {
  font-size: 1.8rem !important;
  line-height: 1.3 !important;
  color: #999;
  margin-bottom: 4vh;
  letter-spacing: 0.06em;
  font-weight: 300;
}
.products3_features {
  display: flex;
  flex-direction: column;
  gap: 3vh;
}
.products3_feature_item {
  opacity: 0;
  transform: translateX(-40px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}
.products3_feature_item:nth-child(even) {
  transform: translateX(40px);
}
.products3_feature_item.inview.show {
  opacity: 1;
  transform: translateX(0);
}
.products3_feature_item.inview.show:nth-child(1) {
  transition-delay: 0s;
}
.products3_feature_item.inview.show:nth-child(2) {
  transition-delay: 0.15s;
}
.products3_feature_item.inview.show:nth-child(3) {
  transition-delay: 0.3s;
}
.products3_feature_body h4 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 0.5vh;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.products3_feature_body p {
  font-size: 1.2rem !important;
  line-height: 1.6;
  color: #777;
  font-weight: 400 !important;
}

/* ========================================
   R&D 研发实力全屏区块（视频背景 + 居中文字 + 弹窗）
   ======================================== */

/* === 桌面端：视频背景 + 遮罩 + 居中内容 === */
.rd_block {
  position: relative;
  width: 100%;
  height: calc(100vh - 11.111vh);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* 背景视频 */
.rd_bg_video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

/* 半透明遮罩 */
.rd_overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.7) 50%,
    rgba(0, 0, 0, 0.7) 100%
  );
  z-index: 1;
}

.rd_inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  padding: 8vh 6vw;
}

/* 文字区（居中） */
.rd_content {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 1s ease,
    transform 1s ease;
}
.rd_content.inview.show {
  opacity: 1;
  transform: translateY(0);
}

.rd_label {
  font-size: 1.4rem;
  letter-spacing: 0.4em;
  color: rgba(226, 121, 29, 0.9);
  font-weight: 500;
  margin-bottom: 4vh;
  position: relative;
  display: inline-block;
  padding: 0;
}
.rd_label::before {
  display: none;
}
.rd_label::after {
  content: "";
  position: absolute;
  bottom: -1.5vh;
  left: 50%;
  transform: translateX(-50%);
  width: 3vw;
  height: 1px;
  background: #e2791d;
}

.rd_title {
  font-weight: 400;
  margin-bottom: 1.2vh;
}
.rd_title_line {
  display: block;
  font-size: 3.8rem;
  line-height: 1.6;
  color: #fff;
  letter-spacing: 0.1em;
  opacity: 0;
  transform: translateY(25px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}
.rd_content.inview.show .rd_line1 {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.3s;
}
.rd_content.inview.show .rd_line2 {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.5s;
}
.rd_content.inview.show .rd_line3 {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.7s;
}
.rd_content.inview.show .rd_line4 {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.9s;
}

.rd_title_line.rd_line2,
.rd_title_line.rd_line4 {
  font-size: 2.2rem;
  color: rgba(255, 255, 255, 1);
  font-weight: 300;
  letter-spacing: 0.06em;
}

.rd_divider {
  width: 3vw;
  height: 1px;
  background: linear-gradient(to right, transparent, #e2791d, transparent);
  margin: 3vh auto;
}

.rd_sub {
  margin-top: 4vh;
  font-size: 1.2rem;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.3);
  font-weight: 400;
  opacity: 0;
  transition: opacity 1s ease 1.2s;
}
.rd_content.inview.show .rd_sub {
  opacity: 1;
}

/* 播放按钮 */
.rd_play_btn {
  display: inline-flex;
  align-items: center;
  gap: 1vw;
  margin-top: 5vh;
  padding: 1.6vh 3vw;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50px;
  color: #fff;
  cursor: pointer;
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(15px);
  transition:
    opacity 0.8s ease 1.4s,
    transform 0.8s ease 1.4s,
    background 0.3s ease,
    border-color 0.3s ease;
}
.rd_play_btn.inview.show {
  opacity: 1;
  transform: translateY(0);
}
.rd_play_btn:hover {
  background: rgba(226, 121, 29, 0.85);
  border-color: #e2791d;
}
.rd_play_icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(226, 121, 29, 0.8);
  flex-shrink: 0;
}
.rd_play_icon svg {
  margin-left: 2px;
}
.rd_play_text {
  font-family: "Oswald", sans-serif;
}

/* 桌面端隐藏内嵌视频 */
.rd_video_inline {
  display: none;
}

/* 内嵌视频共享样式 */
.rd_video_wrapper {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.rd_video_wrapper video {
  display: block;
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: #000;
}
.rd_video_caption {
  margin-top: 1.5vh;
  font-size: 1rem;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.3);
  text-align: center;
}

/* === 弹窗 === */
.rd_modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
  background: rgba(0, 0, 0, 0.92);
  align-items: center;
  justify-content: center;
}
.rd_modal.is-open {
  display: flex;
}
.rd_modal_close {
  position: absolute;
  top: 2vh;
  right: 2vw;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  z-index: 10;
  transition:
    color 0.3s,
    transform 0.3s;
}
.rd_modal_close:hover {
  color: #fff;
  transform: scale(1.1);
}
.rd_modal_body video {
  display: block;
  max-width: 100%;
  min-height: 90vh;
  width: auto;
  height: auto;
  border-radius: 4px;
  object-fit: contain;
}

/* pad 响应式 */
@media (min-width: 768px) and (max-width: 1024px) {
  .rd_bg_video {
    display: none;
  }
  .rd_overlay {
    background: linear-gradient(135deg, #0a0f1a 0%, #1a1f2e 50%, #0d1117 100%);
  }
  .rd_inner {
    padding: 10vh 8vw;
    flex-direction: column;
  }
  .rd_label {
    font-size: 1rem;
  }
  .rd_label::after {
    width: 4vw;
  }
  .rd_title_line {
    font-size: 2rem;
  }
  .rd_title_line.rd_line2,
  .rd_title_line.rd_line4 {
    font-size: 1.2rem;
  }
  .rd_play_btn {
    display: none;
  }
  .rd_video_inline {
    display: block;
    position: relative;
    z-index: 2;
    padding: 0 8vw 8vh;
    opacity: 0;
    transform: translateY(30px);
    transition:
      opacity 0.8s ease 0.3s,
      transform 0.8s ease 0.3s;
  }
  .rd_video_inline.inview.show {
    opacity: 1;
    transform: translateY(0);
  }
}

/* phone 响应式 */
@media (max-width: 767px) {
  .rd_block {
    min-height: 100vh;
    min-height: 100svh;
  }
  .rd_bg_video {
    display: none;
  }
  .rd_overlay {
    background: linear-gradient(135deg, #0a0f1a 0%, #1a1f2e 50%, #0d1117 100%);
  }
  .rd_inner {
    padding: 8vh 6vw;
    flex-direction: column;
  }
  .rd_label {
    font-size: 0.85rem;
    letter-spacing: 0.25em;
  }
  .rd_label::after {
    width: 6vw;
  }
  .rd_title_line {
    font-size: 1.5rem;
    line-height: 1.5;
  }
  .rd_title_line.rd_line2,
  .rd_title_line.rd_line4 {
    font-size: 1.1rem;
  }
  .rd_divider {
    width: 8vw;
  }
  .rd_sub {
    font-size: 0.85rem;
    letter-spacing: 0.15em;
  }
  .rd_play_btn {
    display: none;
  }
  .rd_video_inline {
    display: block;
    position: relative;
    z-index: 2;
    padding: 0 6vw 6vh;
    opacity: 0;
    transform: translateY(20px);
    transition:
      opacity 0.8s ease 0.3s,
      transform 0.8s ease 0.3s;
  }
  .rd_video_inline.inview.show {
    opacity: 1;
    transform: translateY(0);
  }
  .rd_video_caption {
    font-size: 0.8rem;
  }
  .rd_modal_body {
    width: 94vw;
  }
}

/* products6_items - 智能制造简介段落 */
.products6_items {
  margin-top: 3vh;
  margin-bottom: 3vh;
  padding: 0 3vw;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.products6_item {
  display: flex;
  align-items: flex-start;
  padding: 3vh 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}
.products6_item:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.products6_item .item_num {
  font-size: 4.5rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.2);
  line-height: 1;
  min-width: 5vw;
  letter-spacing: -0.02em;
  padding-top: 0.3vh;
}
.products6_item p {
  font-size: 2.2rem !important;
  line-height: 1.9 !important;
  color: #fff;
  font-weight: 300;
  letter-spacing: 0.04em;
  margin: 0;
  padding: 0;
}
.products6_item.inview.show {
  opacity: 1;
  transform: translateY(0);
}
.products6_item:nth-child(1).inview.show {
  transition-delay: 0s;
}
.products6_item:nth-child(2).inview.show {
  transition-delay: 0.2s;
}
.products6_item:nth-child(3).inview.show {
  transition-delay: 0.4s;
}

/* pad 响应式 */
@media (min-width: 768px) and (max-width: 1024px) {
  .products_features {
    grid-template-columns: 1fr;
    gap: 1.5vh;
  }
  .feature_item {
    padding: 1.5vh 1.5vw;
  }
  .feature_number {
    font-size: 2.6rem;
    margin-right: 1.2vw;
  }
  .feature_body h4 {
    font-size: 1.5rem;
  }
  .feature_body p {
    font-size: 1.3rem !important;
  }
  .products3_content {
    margin-top: 1vh;
    padding: 0;
  }
  .products3_intro {
    font-size: 1.2rem;
    margin-bottom: 1.5vh;
  }
  .products3_features {
    gap: 1.5vh;
  }
  .products3_feature_body h4 {
    font-size: 1.6rem;
  }
  .products3_feature_body p {
    font-size: 1.2rem !important;
  }
}

/* phone 响应式 */
@media (max-width: 767px) {
  .products_txt_content {
    margin-top: 1.5vh;
  }
  .products_intro {
    font-size: var(--phone-fs-sm) !important;
    padding-left: 3vw;
    margin-bottom: 4vh;
  }
  .products_features {
    grid-template-columns: 1fr;
    gap: 1.5vh;
  }
  .feature_item {
    padding: 2vh 3vw;
  }
  .feature_number {
    font-size: 2.4rem;
    margin-right: 3vw;
  }
  .feature_body h4 {
    font-size: var(--phone-fs-md);
  }
  .feature_body p {
    font-size: var(--phone-fs-sm) !important;
  }
  .feature_body .highlight {
    font-size: var(--phone-fs-md) !important;
  }
  .products3_content {
    margin-top: 1vh;
    padding: 0;
  }
  .products3_intro {
    font-size: var(--phone-fs-sm) !important;
    margin-bottom: 1.5vh;
    text-align: left;
  }
  .products3_features {
    gap: 2vh;
  }
  .products3_feature_body h4 {
    font-size: 1.5rem;
  }
  .products3_feature_body p {
    font-size: var(--phone-fs-sm) !important;
    text-align: left;
  }
}