/* ===== 技术平台 ===== */

/* ---------- Banner ---------- */
.banner.tech-banner,
.banner.contact_demo {
  position: relative;
}
.banner.tech-banner .banner-overlay,
.banner.contact_demo .banner-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.banner.tech-banner .banner-overlay .banner-text,
.banner.contact_demo .banner-overlay .banner-text {
  max-width: 960px;
  color: #fff;
  text-align: center;
}

.banner.tech-banner .banner-overlay .banner-text .banner-sub,
.banner.contact_demo .banner-overlay .banner-text .banner-sub {
  font-size: 64px;
  font-weight: 400;
  line-height: 100%;
  letter-spacing: 0.09em;
  margin-bottom: 18px;
  background: linear-gradient(90deg, #06B6D4 0%, #2DD4C0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  box-shadow: 0px 1px 1px 0px rgba(0,0,0,0.5);
  padding: 4px 16px;
}
.banner.tech-banner .banner-overlay .banner-text p,
.banner.contact_demo .banner-overlay .banner-text p {
  font-size: 24px;
  margin-bottom: 28px;
  line-height: 160%;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.85);
}
.banner.tech-banner .banner-overlay .banner-text .banner-btns,
.banner.contact_demo .banner-overlay .banner-text .banner-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
}
.banner.tech-banner .banner-overlay .banner-text .banner-btns .btn,
.banner.contact_demo .banner-overlay .banner-text .banner-btns .btn {
  display: inline-block;
  padding: 0 28px;
  height: 46px;
  line-height: 46px;
  border-radius: 23px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: all 0.3s ease;
}
.banner.tech-banner .banner-overlay .banner-text .banner-btns .btn-primary,
.banner.contact_demo .banner-overlay .banner-text .banner-btns .btn-primary {
  background: #0594b0;
  color: #fff;
}
.banner.tech-banner .banner-overlay .banner-text .banner-btns .btn-primary:hover,
.banner.contact_demo .banner-overlay .banner-text .banner-btns .btn-primary:hover {
  background:  #06B6D4;
}
.banner.tech-banner .banner-overlay .banner-text .banner-btns .btn-outline,
.banner.contact_demo .banner-overlay .banner-text .banner-btns .btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.6);
}
.banner.tech-banner .banner-overlay .banner-text .banner-btns .btn-outline:hover,
.banner.contact_demo .banner-overlay .banner-text .banner-btns .btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

/* ---------- 核心能力 ---------- */
.tech-capabilities {
  max-width: 1260px;
  margin: 0 auto;
  padding: 60px 20px;
}
.tech-capabilities .capabilities-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.tech-capabilities .cap-item {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.tech-capabilities .cap-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 128, 255, 0.12);
}
.tech-capabilities .cap-item img {
  width: 100%;
  height: auto;
  display: block;
}
.tech-capabilities .cap-item .cap-info {
  padding: 20px 24px 28px;
}
.tech-capabilities .cap-item h3 {
  font-size: 22px;
  color: #222;
  margin-bottom: 10px;
}
.tech-capabilities .cap-item p {
  font-size: 15px;
  color: #666;
  line-height: 1.7;
}

/* ---------- 技术优势 ---------- */
.tech-advantages {
  background: #f8f9fb;
  padding: 60px 0;
}
.tech-advantages .advantages-grid {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}
.tech-advantages .adv-item {
  background: #fff;
  border-radius: 8px;
  padding: 36px 28px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: transform 0.3s ease;
}
.tech-advantages .adv-item:hover {
  transform: translateY(-3px);
}
.tech-advantages .adv-item .adv-icon {
  font-size: 40px;
  margin-bottom: 16px;
  display: block;
}
.tech-advantages .adv-item h3 {
  font-size: 20px;
  color: #222;
  margin-bottom: 12px;
}
.tech-advantages .adv-item p {
  font-size: 15px;
  color: #666;
  line-height: 1.7;
}

/* ---------- 核心优势（左图右文） ---------- */
.advantage-layout {
  max-width: 1680px;
  margin: 0 auto;
  padding-bottom: 60px;
}

.advantage-layout .advantage-content {
  display: flex;
  gap: 0;
  align-items: flex-start;
}
.advantage-layout .advantage-image {
  flex: 0 0 auto;
  width: 42%;
}
.advantage-layout .advantage-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}
.advantage-layout .advantage-features {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.advantage-layout .advantage-features .feat-item {
  padding-top: 60px;
  position: relative;
}

.advantage-layout .advantage-features .feat-item .feat-tag {
  display: inline-block;
  background: linear-gradient(90deg, #06B6D4 0%, #2DD4C0 100%);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  padding: 4px 20px;
  position: absolute;
  top: 0;
  letter-spacing: 0.12em;
  line-height: 1.4;
}
.advantage-layout .advantage-features .feat-item:nth-child(odd) .feat-tag {
  left: 0;
  right: auto;
  margin-top: 16px;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}
.advantage-layout .advantage-features .feat-item:nth-child(even) .feat-tag {
  left: auto;
  right: 0;
  margin-top: 16px;
  clip-path: polygon(0 20px, 20px 0, 100% 0, 100% 100%, 0 100%);
}

.advantage-layout .advantage-features .feat-item:nth-child(odd) {
  background: url('/images/technology/left_feat_bg.png') no-repeat;
  background-size: 100% 100%;
  padding-left: 20px;
  padding-right: 40px;
  padding-bottom: 24px;
  margin-right: -20px;
}
.advantage-layout .advantage-features .feat-item:nth-child(even) {
  background: url('/images/technology/right_feat_bg.png') no-repeat;
  background-size: 100% 100%;
  padding-left: 46px;
  padding-right: 20px;
  padding-bottom: 24px;
  margin-left: -20px;
  text-align: right;
}

.advantage-layout .advantage-features .feat-item p {
  font-size: 16px;
  color: #444;
  line-height: 1.7;
  letter-spacing: 0.05em;
  margin: 0;
}

@media (max-width: 768px) {
  .advantage-layout .advantage-content {
    flex-direction: column;
  }
  .advantage-layout .advantage-image {
    width: 100%;
    margin-left: 0;
  }
  .advantage-layout .advantage-features {
    grid-template-columns: 1fr;
  }
  .advantage-layout .advantage-features .feat-item {
    clip-path: none !important;
    border-radius: 8px;
  }
  .advantage-layout .advantage-features {
    grid-template-columns: 1fr;
  }
}

/* ---------- 功能详情（交替左右布局） ---------- */
.detail-section {
  margin: 0 auto;
}
.detail-section .title h3 {
  font-size: 20px;
  color: #555;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-top: -10px;
  margin-bottom: 40px;
}
.detail-item {
  display: flex;
  gap: 0;
  align-items: center;
  margin-bottom: 60px;
}
.detail-item.reverse {
  flex-direction: row-reverse;
}
.detail-item .detail-image {
  flex: 0 0 50%;
}
.detail-item .detail-image img {
  width: 100%;
  height: auto;
  display: block;
}
.detail-item .detail-text {
  flex: 0 0 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 60px;
  box-sizing: border-box;
}
.detail-text-inner {
  width: fit-content;
}
.detail-text-inner .line {
  width: 74px;
  height: 5px;
  border-radius: 2.5px;
  background: linear-gradient(90deg, #06B6D4 0%, #2DD4C0 100%);
  margin-top: 20px;
}
.detail-item .detail-text h4 {
  color: #06B6D4;
  font-weight: 600;
  font-size: 24px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.detail-item .detail-text h4 img {
  width: 36px;
  height: auto;
  display: block;
}
.detail-item .detail-text h5 {
  font-size: 28px;
  color: #1a1a2e;
  font-weight: 400;
  margin: 10px 0;
  letter-spacing: 0.09em;
}
.detail-item .detail-text ul {
  list-style: none;
  padding: 0;
  margin: 0 0 0 10px;
}
.detail-item .detail-text ul li {
  position: relative;
  padding-left: 20px;
  font-size: 18px;
  color: #555;
  line-height: 1.6;
  letter-spacing: 0.09em;
  margin-bottom: 6px;
}
.detail-item .detail-text ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #06B6D4, #2DD4C0);
}

@media (max-width: 768px) {
  .detail-item {
    flex-direction: column !important;
    gap: 30px;
  }
  .detail-item .detail-image {
    width: 100%;
  }
  .detail-item .detail-text h5 {
    font-size: 22px;
  }
}

/* ---------- 技术架构 ---------- */
.tech-architecture {
  max-width: 1260px;
  margin: 0 auto;
  padding: 60px 20px;
}
.tech-architecture .arch-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

/* 联系浮窗样式已移至 /styles/contact-popup.css */

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .tech-capabilities .capabilities-grid {
    grid-template-columns: 1fr;
  }
  .tech-advantages .advantages-grid {
    grid-template-columns: 1fr;
  }
  .tech-capabilities {
    padding: 40px 16px;
  }
  .tech-advantages {
    padding: 40px 0;
  }
  .tech-architecture {
    padding: 40px 16px;
  }
  .tech-capabilities .cap-item h3 {
    font-size: 18px;
  }
  .tech-advantages .adv-item {
    padding: 24px 20px;
  }

  /* === Banner 手机端适配 === */
  .banner.tech-banner .banner-overlay .banner-text,
  .banner.contact_demo .banner-overlay .banner-text {
    max-width: 90%;
  }
  .banner.tech-banner .banner-overlay .banner-text .banner-sub,
  .banner.contact_demo .banner-overlay .banner-text .banner-sub {
    font-size: 28px;
    padding: 4px 12px;
  }
  .banner.tech-banner .banner-overlay .banner-text p,
  .banner.contact_demo .banner-overlay .banner-text p {
    font-size: 14px;
    margin-bottom: 16px;
    line-height: 150%;
  }
  .banner.tech-banner .banner-overlay .banner-text .banner-btns,
  .banner.contact_demo .banner-overlay .banner-text .banner-btns {
    gap: 10px;
    flex-wrap: wrap;
  }
  .banner.tech-banner .banner-overlay .banner-text .banner-btns .btn,
  .banner.contact_demo .banner-overlay .banner-text .banner-btns .btn {
    font-size: 13px;
    padding: 0 18px;
    height: 38px;
    line-height: 38px;
  }

  /* === 立即体验 标题 === */
  .banner.contact_demo .banner-overlay .banner-text h3 {
    font-size: 22px !important;
    margin-bottom: 10px !important;
  }

  /* === 功能详情 ul 手机端适配 === */
  .detail-item .detail-text {
    padding: 0 20px;
  }
  .detail-item .detail-text ul li {
    font-size: 14px;
    line-height: 1.5;
    padding-left: 16px;
  }
  .detail-item .detail-text ul li::before {
    width: 6px;
    height: 6px;
  }
  .detail-section .title h3 {
    font-size: 16px;
    padding: 0 16px;
  }

  /* === 核心优势手机端 === */
  .advantage-layout .advantage-features .feat-item p {
    font-size: 14px;
  }
  .advantage-layout .advantage-features .feat-item .feat-tag {
    font-size: 14px;
    padding: 3px 14px;
  }
  .advantage-layout .advantage-features .feat-item:nth-child(odd) {
    padding-left: 14px;
    padding-right: 20px;
    margin-right: 0;
    background: #f8f9fa;
    border-radius: 8px;
  }
  .advantage-layout .advantage-features .feat-item:nth-child(even) {
    padding-left: 20px;
    padding-right: 14px;
    margin-left: 0;
    text-align: left;
    background: #f8f9fa;
    border-radius: 8px;
  }
  .advantage-layout .advantage-features .feat-item:nth-child(odd) .feat-tag,
  .advantage-layout .advantage-features .feat-item:nth-child(even) .feat-tag {
    clip-path: none;
    border-radius: 4px;
    left: 0;
    right: auto;
  }
}

/* 小屏手机额外优化 */
@media (max-width: 480px) {
  .banner.tech-banner .banner-overlay .banner-text .banner-sub,
  .banner.contact_demo .banner-overlay .banner-text .banner-sub {
    font-size: 22px;
  }
  .banner.tech-banner .banner-overlay .banner-text p,
  .banner.contact_demo .banner-overlay .banner-text p {
    font-size: 12px;
  }
}

/* 取消 tech-banner 和 contact_demo 的图片缩放，防止 overlay 文字被裁切 */
.banner.tech-banner .banner-slide img,
.banner.contact_demo .banner-slide img {
  transform: none !important;
  object-fit: cover;
}

@media (max-width: 768px) {
  .banner.contact_demo .banner-overlay .banner-text h3 {
    font-size: 20px !important;
  }
  /* 确保 contact_demo 有足够高度显示文字 */
  .banner.contact_demo {
    max-height: none;
    min-height: 260px;
  }
  .banner.contact_demo .banner-slide img {
    transform: none !important;
    height: 100%;
    min-height: 260px;
  }
}