/* ===== 通用 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===== 轮播图 ===== */
.carousel {
  margin-top: 90px;
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 700px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.carousel-inner {
  position: relative;
  width: 100%;
  height: 100%;
}

.carousel-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.carousel-item.active {
  opacity: 1;
}



/* 图片保持在下面 */
.carousel-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  position: relative;
}

.carousel-caption {
  position: absolute;
  left: 150px;
  bottom: 100px;
  z-index: 2;
  max-width: 600px;
  padding: 20px 25px;
  border-radius: 8px;
  animation: fadeInUp 0.8s ease-out;
}

.carousel-caption h1 {
  margin: 0;
  font-size: 48px;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
}

.carousel-indicators {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.indicator.active {
  background: #fff;
  transform: scale(1.2);
}

.indicator:hover {
  background: rgba(255, 255, 255, 0.8);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  z-index: 3;
  transition: all 0.3s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

.carousel-btn:hover {
  background: rgba(0, 0, 0, 0.7);
  transform: translateY(-50%) scale(1.1);
}

.carousel-btn.prev {
  left: 20px;
}

.carousel-btn.next {
  right: 20px;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 关于我们部分 - 修复移动端问题 ===== */
.section-about {
  width: 100%;
  min-height: 0;
  background: #f7f9fc;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 60px 0;
}

.about-container {
  padding: 0;
  background: #f7f9fc;
  max-width: 1480px;
  width: 94%;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 28px;
  border-radius: 12px;
}

.about-video-col {
  flex: 1.08;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
  align-self: stretch;
}

.about-video-main {
  width: 100%;
  margin: 0;
  flex: 0 0 auto;
  align-self: stretch;
}

/* 16:9 比例盒（移动端）；桌面端随右栏等高拉伸 */
.about-video-player {
  position: relative;
  width: 100%;
  max-width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 32px rgba(15, 23, 42, 0.14);
  background: #000;
}

.about-video-player .video-facade--about {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  aspect-ratio: unset;
  min-height: 0;
  border-radius: 0;
  box-shadow: none;
  cursor: pointer;
}

.about-video-player .video-facade--about img {
  object-fit: cover;
}

.about-video-player .video-facade--about iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
  border: 0;
  border-radius: 0;
}

.about-video-player:focus {
  outline: 2px solid rgba(26, 115, 232, 0.65);
  outline-offset: 2px;
}

.about-video-player:focus:not(:focus-visible) {
  outline: none;
}

/* 主视频下方：本频道片单（与播放器同宽对齐） */
.about-video-more-below {
  flex-shrink: 0;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
  border-top: none;
  align-self: stretch;
  box-sizing: border-box;
}

.about-video-more-below[hidden] {
  display: none;
}

.about-video-more-head {
  margin: 0 0 10px;
  padding: 0;
  font-size: 0.78rem;
  color: #6b7280;
}

.about-video-more-head a {
  color: #1a73e8;
  font-weight: 600;
  text-decoration: none;
}

.about-video-more-head a:hover,
.about-video-more-head a:focus {
  text-decoration: underline;
}

.about-video-more-trigger {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px 9px 12px;
  border: 1px solid #e3e8f0;
  border-radius: 999px;
  background: linear-gradient(180deg, #fff 0%, #f6f8fb 100%);
  color: #1a1a1a;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.about-video-more-trigger:hover,
.about-video-more-trigger:focus {
  outline: none;
  border-color: #c5d4ea;
  box-shadow: 0 3px 10px rgba(26, 115, 232, 0.12);
}

.about-video-more-trigger-icon {
  width: 28px;
  height: 20px;
  border-radius: 5px;
  background: #1a1a1a;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  position: relative;
  flex-shrink: 0;
}

.about-video-more-trigger-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-35%, -50%);
  border-style: solid;
  border-width: 4px 0 4px 7px;
  border-color: transparent transparent transparent #fff;
}

.about-video-more-trigger-thumb {
  width: 44px;
  height: 30px;
  border-radius: 6px;
  object-fit: cover;
  display: block;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06);
}

.about-video-more-panel {
  display: none;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 14px;
  border-radius: 12px;
  background: #f4f6f9;
  border: 1px solid #e8edf3;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.05);
  box-sizing: border-box;
}

.about-video-more-below:hover .about-video-more-panel,
.about-video-more-below.is-open .about-video-more-panel {
  display: block;
}

.about-video-more-list {
  display: flex;
  flex-wrap: nowrap;
  gap: 12px;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  padding-bottom: 2px;
  box-sizing: border-box;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: #c5ced9 transparent;
}

.about-video-more-list::-webkit-scrollbar {
  height: 6px;
}

.about-video-more-list::-webkit-scrollbar-thumb {
  background: #c5ced9;
  border-radius: 3px;
}

.about-video-more-item {
  flex: 0 0 132px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 0;
  margin: 0;
  border: 2px solid transparent;
  border-radius: 10px;
  background: #fff;
  appearance: none;
  cursor: pointer;
  text-align: left;
  color: #222;
  font: inherit;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.about-video-more-item:hover,
.about-video-more-item:focus {
  border-color: rgba(26, 115, 232, 0.5);
  transform: translateY(-2px);
  outline: none;
}

.about-video-more-item.is-active {
  border-color: #1a73e8;
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.18);
}

.about-video-more-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background: #fff;
}

.about-video-more-item span {
  padding: 0 8px 8px;
  font-size: 0.72rem;
  line-height: 1.35;
  color: #4b5563;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 桌面端：左宽（视频拉高 + 片单）与右栏文字底对齐 */
@media (min-width: 959px) {
  .section-about {
    padding: 60px 0;
    min-height: 0;
  }

  .about-container {
    display: grid;
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    grid-template-rows: auto auto;
    gap: 0 26px;
    max-width: 1480px;
    align-items: stretch;
  }

  .about-video-col {
    grid-column: 1;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 100%;
    height: 100%;
  }

  .about-title {
    grid-column: 2;
    grid-row: 1;
    align-self: end;
    margin: 0;
    padding: 34px 36px 12px;
    background: #fff;
    border-radius: 12px 12px 0 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    box-sizing: border-box;
  }

  .about-body {
    grid-column: 2;
    grid-row: 2;
    align-self: start;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 0 36px 32px;
    background: #fff;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    box-sizing: border-box;
  }

  .about-video-main {
    flex: 1 1 auto;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    width: 100%;
  }

  .about-video-player {
    position: relative;
    flex: 1 1 auto;
    width: 100%;
    height: auto;
    min-height: 280px;
    padding-bottom: 0;
    border-radius: 12px;
  }

  .about-video-player .video-facade--about {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .about-video-more-below {
    flex: 0 0 auto;
    margin-top: auto;
  }

  .about-video-more-panel {
    display: block;
    padding: 16px;
  }

  .about-video-more-trigger {
    display: none;
  }

  .about-video-more-item {
    flex: 0 0 136px;
  }

  .about-paragraph {
    font-size: 0.96rem;
    line-height: 1.75;
  }
}

.about-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-title {
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  font-weight: 700;
  color: #111;
  line-height: 1.25;
  margin: 0;
}

.about-paragraph {
  font-size: 1rem;
  line-height: 1.8;
  color: #444;
}

.about-updated {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.about-updated time {
  font-style: normal;
}

.about-buttons {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  text-decoration: none;
  cursor: pointer;
  border: none;
  outline: none;
}

.button-primary {
  background: linear-gradient(135deg, #1a73e8, #0d47a1);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26, 115, 232, 0.4);
}

.button-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(26, 115, 232, 0.5);
}

.button-secondary {
  background: #fff;
  color: #1a73e8;
  border: 2px solid #1a73e8;
}

.button-secondary:hover {
  background: #f0f7ff;
  transform: translateY(-3px);
}

/* ========= 移动端响应式修复 ========= */
@media (max-width: 1024px) {
  .section-about {
    padding: 40px 0;
    min-height: auto;
  }

  .about-container {
    width: 95%;
    gap: 30px;
  }

  .about-paragraph {
    font-size: 0.95rem;
  }
}

@media (max-width: 958px) {
  .section-about {
    padding: 30px 0;
    height: auto;
  }

  .about-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 100%;
    border-radius: 0;
    gap: 0;
    padding: 0;
  }

  .about-title {
    width: 100%;
    box-sizing: border-box;
    padding: 30px 20px 12px;
    border-top: 1px solid #eaeaea;
    font-size: 1.8rem;
    text-align: center;
    margin: 0;
  }

  .about-video-col {
    flex: none;
    width: 100%;
    height: auto;
    min-height: 0;
    padding: 0 20px 16px;
    gap: 12px;
  }

  .about-body {
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 8px 20px 30px;
    box-sizing: border-box;
  }

  .about-paragraph {
    padding: 0;
    box-sizing: border-box;
    font-size: 0.95rem;
    line-height: 1.7;
    text-align: left;
  }

  .about-video-main {
    flex: 0 0 auto;
    min-height: 0;
    display: block;
  }

  .about-video-player {
    flex: none;
    height: 0;
    min-height: 0;
    padding-bottom: 56.25%;
  }

  .about-video-more-below {
    margin-top: 0;
  }

  .about-video-more-panel {
    display: none;
  }

  .about-video-more-below:hover .about-video-more-panel,
  .about-video-more-below.is-open .about-video-more-panel {
    display: block;
  }

  .about-video-more-trigger {
    display: inline-flex;
    min-height: 48px;
  }

  .about-buttons {
    margin-top: 25px;
    justify-content: center;
    gap: 15px;
    flex-direction: column;
    align-items: center;
  }

  .button {
    width: 100%;
    max-width: 280px;
    padding: 14px 24px;
  }
}


@media (max-width: 480px) {
  .section-about {
    padding: 20px 0;
  }

  .about-title {
    padding: 25px 15px 10px;
    font-size: 1.6rem;
  }

  .about-video-col {
    padding: 0 15px 12px;
  }

  .about-body {
    padding: 8px 15px 25px;
    gap: 16px;
  }

  .about-paragraph {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  .about-buttons {
    margin-top: 20px;
    gap: 12px;
  }

  .button {
    padding: 12px 20px;
    font-size: 0.95rem;
  }
}

@media (max-width: 360px) {
  .about-title {
    font-size: 1.4rem;
  }

  .about-paragraph {
    font-size: 0.85rem;
  }

  .about-buttons {
    gap: 10px;
  }
}

/* 修复其他部分在移动端的标题字体大小 */
@media (max-width: 768px) {

  .section-header h2,
  .history-title,
  .Company-title,
  .company-tour-title,
  .partner-case-title,
  .equipment-title,
  .news-header h2,
  .advantages-title,
  .certification-title,
  .partners-title,
  .faq-title {
    font-size: 1.8rem !important;
    line-height: 1.3;
    padding: 0 15px;
    margin: 0 auto 15px;
  }

  .section-header p,
  .history-intro,
  .company-tour-intro,
  .partner-case-intro,
  .equipment-intro,
  .news-header p,
  .advantages-subtitle,
  .certification-subtitle,
  .faq-subtitle {
    font-size: 0.95rem !important;
    line-height: 1.6;
    padding: 0 15px;
    margin: 0 auto 25px;
  }
}

@media (max-width: 480px) {

  .section-header h2,
  .history-title,
  .Company-title,
  .company-tour-title,
  .partner-case-title,
  .equipment-title,
  .news-header h2,
  .advantages-title,
  .certification-title,
  .partners-title,
  .faq-title {
    font-size: 1.5rem !important;
  }

  .section-header p,
  .history-intro,
  .company-tour-intro,
  .partner-case-intro,
  .equipment-intro,
  .news-header p,
  .advantages-subtitle,
  .certification-subtitle,
  .faq-subtitle {
    font-size: 0.9rem !important;
  }
}

/* 修复新闻部分的移动端显示 */
@media (max-width: 768px) {
  .news-item {
    width: 100%;
    max-width: 100%;
    margin-bottom: 15px;
  }

  .news-item-image {
    height: 200px;
  }

  .news-item-content {
    padding: 20px;
  }

  .news-item-title {
    font-size: 1.2rem;
  }
}

.Company-section {
  width: 100%;
  padding: 130px 0 80px 0;
  background: #f7f9fc;
}

.Company-inner {
  width: 80%;
  max-width: 1200px;
  margin: 0 auto;
}

.Company-title {
  font-size: 2.8rem;
  font-weight: 700;
  text-align: center;
  color: #111;
  margin-bottom: 20px;
}

/* =========  发展历程  ========= */
.history-section {
  width: 100%;
  padding: 50px 0 40px 0;
  background: #f7f9fc;
}

.history-inner {
  width: 80%;
  max-width: 1200px;
  margin: 0 auto;
}

.history-title {
  font-size: 2.8rem;
  font-weight: 700;
  text-align: center;
  color: #111;
  margin-bottom: 20px;
}

.history-intro {
  font-size: 1.2rem;
  line-height: 1.8;
  color: #444;
  text-align: center;
  margin-bottom: 60px;
}

.timeline {
  position: relative;
  padding-left: 30px;
  border-left: 3px solid #5dade2;
}

.timeline-item {
  position: relative;
  margin-bottom: 50px;
}

.timeline-dot {
  position: absolute;
  left: -42px;
  top: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #5dade2;
  border: 4px solid #fff;
  box-shadow: 0 0 0 3px #5dade2;
}

.timeline-content {
  background: #fff;
  padding: 25px 30px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
  position: relative;
}

.timeline-content .year {
  display: inline-block;
  font-size: 1.4rem;
  font-weight: 700;
  color: #5dade2;
  margin-bottom: 10px;
}

.timeline-content h3 {
  font-size: 1.2rem;
  margin: 8px 0 12px;
  color: #222;
}

.timeline-content p {
  font-size: 1rem;
  line-height: 1.7;
  color: #555;
}

/* =========  公司实景  ========= */
.company-tour-section {
  width: 100%;
  background: #f7f9fc;
  text-align: center;
}

.company-tour-inner {
  width: 80%;
  max-width: 1200px;
  margin: 0 auto;
}

.company-tour-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #111;
  margin-bottom: 20px;
}

.company-tour-intro {
  font-size: 1.2rem;
  line-height: 1.8;
  color: #444;
  margin-bottom: 40px;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.image-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  height: 250px;
}

.image-item:hover {
  transform: translateY(-5px);
}

.company-tour-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
  transition: transform 0.3s ease;
}

.image-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  padding: 10px;
  font-size: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.image-item:hover .image-caption {
  opacity: 1;
}

/* =========  合作案例  ========= */
.partner-case-section {
  width: 100%;
  padding: 80px 0;
  background: #f7f9fc;
  text-align: center;
}

.partner-case-inner {
  width: 80%;
  max-width: 1200px;
  margin: 0 auto;
}

.partner-case-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #111;
  margin-bottom: 20px;
}

.partner-case-intro {
  font-size: 1.2rem;
  line-height: 1.8;
  color: #444;
  margin-bottom: 40px;
}

.partner-case-images {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.partner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid #ddd;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  padding: 20px;
}

.partner-logo img {
  border-radius: 20px;
  width: 330px;
  height: 200px;
  margin: 20px 0;
}

.partner-image img {
  transition: transform 0.3s ease;
}

.partner-image img:hover {
  transform: scale(1.1);
}

.partner-caption {
  padding: 15px;
  font-size: 1.2rem;
  color: #444;
  z-index: 1;
}

.high-precision-equipment-section {
  width: 100%;
  background: #f7f9fc;
  text-align: center;
}

.equipment-inner {
  width: 80%;
  max-width: 1350px;
  margin: 0 auto;
  padding: 80px 0 0 0;
}

.equipment-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #111;
  margin-bottom: 20px;
}

.equipment-intro {
  font-size: 1.2rem;
  line-height: 1.8;
  color: #444;
  margin-bottom: 40px;
}

.equipment-images {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 30px;
}

.equipment-inner > .button-primary {
  margin: 10px auto 0;
}

.equipment-item {
  border-radius: 12px;
  overflow: hidden;
  padding: 12px 12px 16px;
  text-decoration: none;
  background: #fff;
  display: flex;
  flex-direction: column;
}

.equipment-image {
  width: 100%;
  border-radius: 10px;
  height: 340px;
  min-height: 340px;
  object-fit: contain;
  object-position: center;
  background: transparent;
  transition: transform 0.3s ease;
}

.equipment-item:hover .equipment-image {
  transform: scale(1.06);
}

.equipment-description {
  padding: 8px 4px 4px;
  font-size: 1rem;
  background: transparent;
  color: #444;
  margin-top: 4px;
  flex: 1;
  display: flex;
  flex-direction: column;
  text-align: left;
}

.equipment-description h3 {
  font-size: 19px;
  font-weight: bolder;
  margin-bottom: 10px;
  color: #111;
}

.equipment-description p {
  font-size: 14px;
  color: #666;
  flex: 1;
}

/* 新闻中心 */
.news-section {
  width: 100%;
  background: #f7f9fc;
  text-align: center;
  padding: 65px 0;
}

.news-header h2 {
  font-size: 2.8rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 10px;
}

.news-header p {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 40px;
}

.tech-articles-header {
  margin-top: 50px;
}

.tech-articles-header p {
  margin-bottom: 30px;
}

.news-subtitle-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
}

.news-subtitle {
  font-size: 1.4rem;
  font-weight: 600;
  color: #070707;
  margin-top: 20px;
  margin-bottom: 20px;
  width: 100%;
  max-width: 1220px;
  padding-left: 10px;
  text-align: left;
}

.news-subtitle-description {
  font-size: 1rem;
  color: #666;
  margin-bottom: 20px;
}

.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  text-decoration: none;
}

.news-list a {
  text-decoration: none;
  display: block;
  height: 100%;
  color: inherit;
}

.tech-articles-list {
  align-items: stretch;
}

.tech-articles-list .news-item-title {
  color: #333;
  display: block;
  overflow: visible;
  -webkit-line-clamp: unset;
  min-height: auto;
}

.tech-articles-list .news-item-excerpt {
  display: block;
  overflow: visible;
  -webkit-line-clamp: unset;
  flex: 1;
}

.tech-articles-list .news-item-content {
  padding: 24px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-item {
  width: 100%;
  border: 1px solid #ddd;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
  margin-bottom: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #fff;
}

.news-item:hover {
  transform: translateY(-5px);
}

.news-item-image {
  width: 100%;
  height: 350px;
}

.news-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-item-content {
  padding: 28px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  text-align: left;
}

.news-item-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #222;
  text-decoration: none;
  transition: color 0.25s ease;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
  min-height: calc(1.5rem * 1.4 * 3);
}

.news-item-title:hover {
  color: rgb(26, 115, 232);
  cursor: pointer;
}

.news-item-date {
  font-size: 1rem;
  color: #999;
  margin-top: 10px;
  margin-bottom: 10px;
}

.news-item-excerpt {
  font-size: 1rem;
  color: #666;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.6;
  flex: 1;
}

.news-item-readmore {
  display: inline-block;
  padding: 10px 20px;
  background-color: #007bff;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.news-item-readmore:hover {
  background-color: #0056b3;
}

.news-item-more {
  margin-top: 30px;
  text-align: center;
}

.news-item-more .button-primary {
  padding: 15px 40px;
  font-weight: 700;
  font-size: 1.05rem;
}

.news-list .news-item-content::after {
  content: "阅读更多 →";
  display: inline-block;
  margin-top: auto;
  padding-top: 14px;
  color: #1a73e8;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: color 0.25s ease, transform 0.25s ease;
}

.news-list a:hover .news-item-content::after {
  color: #0d47a1;
  transform: translateX(4px);
}

.news-list a:hover .news-item-title {
  color: #1a73e8;
}

.news-item-more .news-item-readmore {
  border: 1px solid #007bff;
  background-color: #f0f7ff;
  color: #007bff;
}

.news-item-more .news-item-readmore:hover {
  border: 1px solid #007bff;
  color: #f0f7ff;
  background-color: #007bff;
}

.arrow {
  margin-left: 5px;
}

/* =========  技术优势  ========= */
.tech-advantages-section {
  width: 100%;
  background: #f7f9fc;
  text-align: center;
}

.advantages-container {
  width: 80%;
  padding: 0px 0 0 0;
  max-width: 1200px;
  margin: 0 auto;
}

.advantages-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 20px;
}

.advantages-subtitle {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 40px;
}

.advantages-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.advantage-item {
  background: #f7f9fc;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  transition: border-color 0.3s ease;
  width: calc(33.333% - 20px);
  box-sizing: border-box;
}

.advantage-item:hover {
  border-color: #007bff;
}

.advantage-icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.advantage-icon img {
  width: 45px;
  height: 45px;
}

.advantage-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 10px;
}

.advantage-desc {
  font-size: 1rem;
  color: #666;
  line-height: 1.6;
}

/* =========  认证与专利  ========= */
.certification-section {
  width: 100%;
  padding: 80px 0;
  background: #f7f9fc;
  text-align: center;
}

.certification-container {
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
}

.certification-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 20px;
}

.certification-subtitle {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 40px;
}

.certification-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: 20px;
}

.certification-item {
  width: 300px;
  height: 460px;
  border: 1px solid #ddd;
  overflow: hidden;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
}

.certification-image {
  width: 100%;
  height: 400px;
  max-width: 100%;
  max-height: 800px;
  display: block;
}

.certification-caption {
  padding: 20px;
  font-size: 1.2rem;
  background: #fff;
  color: #444;
  margin-top: -10px;
  z-index: 1;
}

/* =========  合作伙伴  ========= */
.partners-section {
  width: 100%;
  background: #f7f9fc;
  text-align: center;
}

.partners-container {
  padding-bottom: 50px;
  margin: 0 auto;
}

.partners-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 40px;
}

.partners-grid {
  max-width: 1400px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(20px, 10vw, 100px);
  margin: 0 auto;
}

.partner-image {
  width: 400px;
  height: 200px;
  border: 1px solid #ddd;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  margin-bottom: 20px;
  max-width: 100%;
  object-fit: cover;
}

.partner-image:hover {
  transform: scale(1.1);
}

/* 适用场景 */
.scenes-section {
  width: 100%;
  padding: 80px 80px;
  background: rgb(247, 249, 252);
}

.section-header {
  text-align: center;
  margin: 0 auto 28px;
  max-width: 980px;
}

.section-header h2 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.section-header p {
  font-size: 1.2rem;
  color: #6b7280;
  margin: 0;
  margin-bottom: 20px;
}

.scenes-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  width: 90%;
  max-width: 1250px;
  margin: 0 auto;
  align-items: stretch;
}

.scene-card {
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  display: flex;
  flex-direction: column;
  height: 100%;
  cursor: pointer;
  text-decoration: none;
  padding: 12px 12px 16px;
}

.scenes-section .card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  flex-shrink: 0;
  background: #f3f4f6;
  border-radius: 10px;
}

.scenes-section .card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 8px 4px 4px;
}

.card-title {
  font-size: 1.15rem;
  margin: 0 0 6px;
  color: #111827;
}

.card-desc {
  color: #6b7280;
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0 0 12px;
  flex: 1;
}

.button-footer {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

/* =========  B2B sourcing guide  ========= */
.b2b-guide-section {
  width: 100%;
  padding: 70px 0;
  background: #fff;
}

.b2b-guide-inner {
  width: 88%;
  max-width: 1180px;
  margin: 0 auto;
}

.b2b-guide-title {
  font-size: 2.4rem;
  font-weight: 700;
  color: #111;
  text-align: center;
  margin-bottom: 16px;
}

.b2b-guide-intro,
.b2b-guide-outro {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #444;
  text-align: center;
  max-width: 920px;
  margin: 0 auto 36px;
}

.b2b-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-bottom: 40px;
}

.b2b-guide-col h3 {
  font-size: 1.25rem;
  color: #222;
  margin-bottom: 12px;
}

.b2b-guide-col p {
  font-size: 1rem;
  line-height: 1.8;
  color: #555;
  margin-bottom: 14px;
}

.b2b-guide-col a {
  color: #1a73e8;
  text-decoration: none;
}

.b2b-guide-col a:hover {
  text-decoration: underline;
}

.b2b-spec-table-wrap {
  background: #f7f9fc;
  border-radius: 14px;
  padding: 28px 32px;
  margin-bottom: 32px;
}

.b2b-spec-table-wrap h3 {
  font-size: 1.2rem;
  margin-bottom: 18px;
  color: #222;
}

.b2b-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.98rem;
}

.b2b-spec-table th,
.b2b-spec-table td {
  border: 1px solid #e5e7eb;
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.b2b-spec-table th {
  background: #eef4fb;
  font-weight: 600;
  color: #333;
}

.b2b-spec-table td a {
  color: #1a73e8;
  text-decoration: none;
}

.b2b-spec-table td a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .b2b-guide-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .b2b-guide-title {
    font-size: 1.9rem;
  }

  .b2b-spec-table-wrap {
    padding: 20px 16px;
    overflow-x: auto;
  }
}

/* =========  Customer reviews marquee  ========= */
.reviews-section {
  width: 100%;
  padding: 70px 0;
  background: #f7f9fc;
  overflow: hidden;
}

.reviews-header {
  width: 88%;
  max-width: 1180px;
  margin: 0 auto 36px;
  text-align: center;
}

.reviews-title {
  font-size: 2.4rem;
  font-weight: 700;
  color: #111;
  margin-bottom: 12px;
}

.reviews-subtitle {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #555;
  max-width: 720px;
  margin: 0 auto;
}

.reviews-marquee {
  position: relative;
  width: 88%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 12px;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.reviews-marquee-track {
  display: flex;
  align-items: stretch;
  gap: 16px;
  width: max-content;
  padding: 8px 4px 12px;
  animation: reviews-marquee-scroll 70s linear infinite;
  will-change: transform;
}

.reviews-marquee-track:hover {
  animation-play-state: paused;
}

@keyframes reviews-marquee-scroll {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

.review-card {
  flex: 0 0 250px;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.07);
  overflow: hidden;
  border: 1px solid #eef1f5;
}

.review-photo {
  aspect-ratio: 16 / 10;
  max-height: 110px;
  overflow: hidden;
  background: #e8edf2;
}

.review-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.review-card--text {
  min-height: 220px;
}

.review-card--text .review-body {
  min-height: 220px;
  padding: 16px 14px 14px;
}

.review-card--text .review-quote {
  -webkit-line-clamp: 5;
}

.review-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px 14px;
  flex: 1;
}

.review-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.review-stars {
  color: #f5a623;
  font-size: 0.9rem;
  letter-spacing: 1px;
  line-height: 1;
}

.review-star-empty {
  color: #d0d5dc;
}

.review-date {
  font-size: 0.78rem;
  color: #888;
  white-space: nowrap;
}

.review-quote {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.55;
  color: #333;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.review-author {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: #666;
  padding-top: 8px;
  margin-top: auto;
  border-top: 1px solid #f0f2f5;
}

.review-name {
  font-weight: 600;
  color: #222;
}

.review-country::before {
  content: "·";
  margin-right: 6px;
  color: #ccc;
}

.review-verified {
  margin-left: auto;
  font-size: 0.7rem;
  color: #1a9c5a;
  background: #e8f7ef;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .reviews-section {
    padding: 50px 0;
  }

  .reviews-title {
    font-size: 1.9rem;
  }

  .reviews-marquee {
    width: 92%;
    padding: 0 6px;
    mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
  }

  .review-card {
    flex: 0 0 220px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reviews-marquee {
    mask-image: none;
    -webkit-mask-image: none;
    overflow-x: auto;
    padding: 0 4%;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .reviews-marquee-track {
    animation: none;
    padding-bottom: 8px;
  }

  .review-card {
    scroll-snap-align: start;
  }

  .review-card[aria-hidden="true"] {
    display: none;
  }
}

/* FAQ 样式 */
.faq-section {
  width: 100%;
  padding: 80px 0 10px 0;
  background: #f7f9fc;
  text-align: center;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.faq-inner {
  width: 100%;
  max-width: 1350px;
  margin: 0 auto;
}

.faq-title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #111;
  text-align: center;
  margin-bottom: 30px;
}

.faq-subtitle {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 40px;
  line-height: 1.6;
}

.faq-list {
  list-style: none;
  padding: 0;
  max-width: 1380px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 20px;
  border: 1px solid #e1e5eb;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 24px 30px;
  background: #fff;
  border: none;
  font-family: inherit;
  font-size: 1.1rem;
  cursor: pointer;
  text-align: left;
  color: #303030;
  font-weight: 600;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  color: #666;
}

.faq-answer {
  padding: 0 24px;
  background: #fff;
  font-family: inherit;
  text-align: left;
}

.faq-answer p,
.faq-answer > p {
  overflow: hidden;
  margin: 0;
  font-family: inherit;
  font-size: 0.975rem;
  line-height: 1.85;
  color: #5a6578;
  font-weight: 600;
  text-align: left;
  -webkit-font-smoothing: antialiased;
}

/* ========= 移动端适配 ========= */
@media (max-width: 1024px) {
  .carousel-caption h1 {
    font-size: 22px;
  }

  .equipment-images {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .history-section,
  .Company-section {
    padding: 40px 0;
  }

  .carousel {
    margin-top: 80px;
    height: 300px;
  }

  .carousel-btn {
    width: 36px;
    height: 36px;
    font-size: 22px;
  }

  .carousel-btn.prev {
    left: 8px;
  }

  .carousel-btn.next {
    right: 8px;
  }

  .carousel-caption {
    left: 40px;
    bottom: 30px;
    padding: 15px;
  }

  .section-about {
    height: auto;
    min-height: auto;
    padding: 40px 0;
    display: block;
  }

  .about-container {
    padding: 0;
    max-width: 100%;
    height: auto;
    border-radius: 0;
    margin: 0;
    width: 100%;
  }

  .history-inner,
  .company-tour-inner,
  .partner-case-inner,
  .equipment-inner,
  .advantages-container {
    width: 92%;
  }

  .equipment-inner {
    padding: 20px 0 0 0 !important;
  }

  .timeline {
    padding-left: 20px;
  }

  .timeline-dot {
    left: -32px;
    width: 14px;
    height: 14px;
  }

  .timeline-content {
    padding: 18px 20px;
  }

  .image-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
  }

  .image-item {
    height: 160px;
  }

  .partner-case-images {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .partner-logo img {
    width: 100%;
    height: auto;
    max-height: 160px;
    object-fit: cover;
  }

  .news-list {
    grid-template-columns: 1fr;
    width: 92%;
    padding: 0;
  }

  .news-item {
    width: 100%;
    max-width: none;
  }

  .advantage-item {
    width: 100%;
  }

  .certification-container {
    width: 92%;
  }

  .certification-grid {
    flex-direction: column;
    align-items: center;
  }

  .certification-item {
    width: 100%;
    max-width: 300px;
  }

  .partners-container {
    width: 92%;
  }

  .partner-image {
    width: 100%;
    max-width: 400px;
    height: auto;
  }

  .partners-grid {
    gap: 60px;
  }

  .scenes-grid {
    grid-template-columns: 1fr;
    width: 92%;
  }
}

@media (max-width: 768px) {
  .equipment-images {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .equipment-image {
    height: auto;
    min-height: 200px;
    max-height: 280px;
  }

  .equipment-description h3 {
    font-size: 1.05rem;
  }

  .equipment-description p {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  .carousel {
    margin-top: -10px !important;
    height: 300px !important;
    border-radius: 0;
  }

  .carousel-caption {
    left: 20px;
    bottom: 20px;
    padding: 15px;
    max-width: calc(100% - 40px);
  }

  .carousel-caption h1 {
    font-size: 20px;
  }

  .carousel-btn {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .carousel-btn.prev,
  .carousel-btn.next {
    display: none;
  }

  .indicator {
    width: 10px;
    height: 10px;
  }

  .section-header h2,
  .history-title,
  .Company-title,
  .company-tour-title,
  .partner-case-title,
  .equipment-title,
  .news-header h2,
  .advantages-title,
  .certification-title,
  .partners-title {
    font-size: 1.6rem !important;
    line-height: 1.3;
    padding: 0 20px;
    margin: 0 auto 12px;
    text-align: center;
  }

  .section-header p,
  .history-intro,
  .company-tour-intro,
  .partner-case-intro,
  .equipment-intro,
  .news-header p,
  .advantages-subtitle,
  .certification-subtitle {
    font-size: 0.9rem !important;
    line-height: 1.5;
    color: #6b7280;
    padding: 0 20px;
    margin: 0 auto 30px;
    text-align: center;
  }

  .certification-section {
    padding: 0;
  }

  .scenes-section {
    padding: 30px 0 40px;
  }

  .history-section,
  .Company-section {
    padding: 0px 0 30px 0;
  }

  .section-header {
    margin: 0 auto 20px;
    padding: 0 20px;
  }

  .section-header h2 {
    font-size: 1.6rem;
  }

  .section-header p {
    font-size: 0.9rem;
  }

  .scenes-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    width: 92%;
  }

  .scene-card {
    border-radius: 12px;
  }

  .scenes-section .card-image {
    height: 200px;
  }

  .scenes-section .card-content {
    padding: 14px 16px 16px;
  }

  .card-title {
    font-size: 1.05rem;
  }

  .card-desc {
    font-size: 0.9rem;
  }

  .faq-section {
    padding: 60px 0;
  }

  .faq-inner {
    width: 92%;
  }

  .faq-title {
    font-size: 1.6rem;
    margin-bottom: 20px;
  }

  .faq-subtitle {
    font-size: 0.9rem;
    margin-bottom: 30px;
  }

  .faq-question {
    padding: 18px 20px;
    font-size: 1rem;
  }

  .faq-answer {
    padding: 0 18px 18px;
  }

  .faq-answer p,
  .faq-answer > p {
    font-size: 0.925rem;
    line-height: 1.75;
  }

  .partners-grid {
    gap: 40px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .carousel {
    height: 300px !important;
  }

  .carousel-caption h1 {
    font-size: 18px !important;
  }

  .section-about {
    padding: 30px 0;
  }

  .history-section {
    padding: 0px 0 20px 0;
  }

  .Company-section {
    padding: 0px 0 40px 0;
  }

  .about-title {
    font-size: 1.6rem;
  }

  .about-paragraph {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .about-buttons {
    gap: 10px;
  }

  .button {
    width: 100%;
    max-width: 280px;
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .section-header h2,
  .history-title,
  .Company-title,
  .company-tour-title,
  .partner-case-title,
  .equipment-title,
  .news-header h2,
  .advantages-title,
  .certification-title,
  .partners-title {
    font-size: 1.8rem !important;
    padding: 0 15px;
  }

  .section-header p,
  .history-intro,
  .company-tour-intro,
  .partner-case-intro,
  .equipment-intro,
  .news-header p,
  .advantages-subtitle,
  .certification-subtitle {
    font-size: 0.85rem !important;
    padding: 0 15px;
  }

  .scenes-section {
    padding: 20px 0 30px;
  }

  .section-header {
    margin: 0 auto 15px;
  }

  .section-header h2 {
    font-size: 1.4rem;
  }

  .section-header p {
    font-size: 0.85rem;
  }

  .scenes-grid {
    gap: 16px;
    width: 94%;
  }

  .scenes-section .card-image {
    height: 180px;
  }

  .scenes-section .card-content {
    padding: 12px 14px 14px;
  }

  .card-title {
    font-size: 1rem;
  }

  .card-desc {
    font-size: 0.85rem;
  }

  .faq-section {
    padding: 40px 0;
  }

  .faq-title {
    font-size: 1.4rem;
  }

  .faq-subtitle {
    font-size: 0.85rem;
  }

  .faq-question {
    padding: 16px 18px;
    font-size: 0.95rem;
  }

  .faq-answer {
    padding: 0 18px 18px;
  }

  .faq-answer p,
  .faq-answer > p {
    font-size: 0.925rem;
    line-height: 1.75;
  }

  .partners-grid {
    gap: 30px;
  }
}

@media (max-width: 360px) {
  .carousel {
    height: 200px !important;
  }

  .about-title {
    font-size: 1.4rem;
  }

  .about-paragraph {
    font-size: 0.85rem;
  }
}

@media (max-width: 400px) {
  .news-subtitle {
    display: block !important;
    font-size: 18px;
  }
}

@media (max-width: 1220px) {
  .news-subtitle {
    display: none;
  }
}

@media (max-width: 1350px) {
  .about-paragraph {
    font-size: 0.9rem;
  }
}

/* ========= 移动端性能优化 ========= */
@media (max-width: 768px) {
  .carousel {
    touch-action: pan-y pinch-zoom;
  }

  .carousel-item {
    will-change: opacity;
  }

  .carousel-item:not(.active) {
    will-change: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .carousel-item {
    transition: none;
  }

  .carousel-caption {
    animation: none;
  }

  .indicator,
  .carousel-btn,
  .button,
  .scene-card,
  .equipment-card,
  .news-item {
    transition: none;
  }
}