/* ========== AI商品经营 页面样式 ========== */

/* 头图 banner（与其他产品页一致） */
.banner {
  cursor: pointer;
}

/* 副标题 */
.ai-sub {
  margin-top: 20px;
  text-align: center;
  color: #666666;
  font-size: 20px;
}

/* ========== 产品演示视频 ========== */
.ai-video {
  padding: 90px 5% 80px;
  background: #fff;
}

.ai-video__cover {
  position: relative;
  max-width: 1000px;
  margin: 56px auto 0;
  border-radius: 16px;
  overflow: hidden;
  background: #292929;
  box-shadow: 0 4px 20px 0 rgba(40, 49, 67, 0.08);
  cursor: pointer;
}

.ai-video__cover img {
  display: block;
  width: 100%;
  transition: transform 0.5s ease;
}

.ai-video__cover:hover img {
  transform: scale(1.03);
}

.ai-video__play {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 88px;
  height: 88px;
  margin: -44px 0 0 -44px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 6px 20px 0 rgba(0, 0, 0, 0.18);
  transition: transform 0.3s ease;
}

.ai-video__play::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  margin: -15px 0 0 -10px;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 24px solid #fb8536;
}

.ai-video__cover:hover .ai-video__play {
  transform: scale(1.08);
}

.ai-video__tag {
  position: absolute;
  left: 24px;
  bottom: 24px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  font-size: 16px;
}

.ai-video__tag .dur {
  font-weight: 600;
}

/* 弹层播放器 */
.layui-layer.ai-video-layer {
  border-radius: 12px;
  overflow: hidden;
  background: #000000;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.layui-layer.ai-video-layer .layui-layer-content {
  height: 100%;
  overflow: hidden;
}

.ai-video-modal {
  position: relative;
  width: 100%;
  line-height: 0;
  background: #000000;
}

.ai-video-modal__close {
  position: absolute;
  right: 12px;
  top: 12px;
  z-index: 2;
  width: 36px;
  height: 36px;
  line-height: 34px;
  text-align: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.ai-video-modal__close:hover {
  background: rgba(0, 0, 0, 0.75);
}

.ai-video-modal video {
  display: block;
  width: 100%;
  height: 100%;
  background: #000000;
  object-fit: contain;
}

/* ========== 为什么需要 ========== */
.ai-why {
  padding: 100px 5% 90px;
}

.ai-why__list {
  max-width: 1244px;
  margin: 64px auto 0;
  display: flex;
  gap: 24px;
}

.ai-why__list .item {
  flex: 1;
  padding: 40px 36px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 4px 20px 0 rgba(40, 49, 67, 0.08);
  border-top: 4px solid #fb8536;
}

.ai-why__list .item .num {
  font-size: 40px;
  font-weight: 700;
  color: rgba(251, 133, 54, 0.35);
}

.ai-why__list .item h6 {
  margin-top: 12px;
  font-size: 32px;
  font-weight: 700;
  color: #333333;
}

.ai-why__list .item .tag {
  margin-top: 8px;
  color: #ea5e39;
  font-size: 18px;
  font-weight: 600;
}

.ai-why__list .item p:not(.tag) {
  margin-top: 16px;
  color: #666666;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.8;
}

/* ========== 产品定位 ========== */
.ai-position {
  padding: 90px 5%;
  background: #f8f8f8;
}

.ai-position__list {
  max-width: 1244px;
  margin: 48px auto 0;
  display: flex;
  gap: 24px;
}

.ai-position__list .item {
  flex: 1;
  padding: 40px 36px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 4px 20px 0 rgba(40, 49, 67, 0.08);
}

.ai-position__list .item h6 {
  position: relative;
  padding-bottom: 18px;
  margin-bottom: 18px;
  font-size: 32px;
  font-weight: 700;
  color: #333333;
}

.ai-position__list .item h6::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 4px;
  border-radius: 2px;
  background: #fb8536;
}

.ai-position__list .item p {
  color: #666666;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.8;
}

.ai-quote {
  margin-top: 56px;
  text-align: center;
  color: #333333;
  font-size: 32px;
  font-weight: 600;
}

/* 决策链路 */
.ai-flow {
  max-width: 1244px;
  margin: 64px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.ai-flow .step {
  min-width: 132px;
  padding: 20px 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid #f0e4d8;
  text-align: center;
}

.ai-flow .step .name {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: #333333;
}

.ai-flow .step .desc {
  display: block;
  margin-top: 6px;
  color: #666666;
  font-size: 16px;
}

.ai-flow .arrow {
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 9px solid rgba(251, 133, 54, 0.5);
}

/* 传统软件对比 */
.ai-compare {
  max-width: 1244px;
  margin: 48px auto 0;
  display: flex;
  gap: 24px;
}

.ai-compare .item {
  flex: 1;
  padding: 32px 36px;
  border-radius: 16px;
  background: #fff;
  border-left: 4px solid #d9d9d9;
}

.ai-compare .item.new {
  border-left-color: #fb8536;
}

.ai-compare .item h6 {
  font-size: 32px;
  font-weight: 700;
  color: #666666;
}

.ai-compare .item.new h6 {
  color: #ea5e39;
}

.ai-compare .item p {
  margin-top: 14px;
  color: #666666;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.8;
}

/* ========== 能力全景 ========== */
.ai-ability {
  padding: 100px 5% 90px;
}

.ai-ability__list {
  max-width: 1244px;
  margin: 64px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.ai-ability__list .item {
  width: calc((100% - 4 * 20px) / 5);
  padding: 28px 20px;
  border-radius: 16px;
  background: #f8f8f8;
  border: 1px solid #f0e4d8;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.ai-ability__list .item:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 24px 0 rgba(40, 49, 67, 0.1);
}

.ai-ability__list .item .num {
  font-size: 20px;
  font-weight: 700;
  color: #fb8536;
}

.ai-ability__list .item h6 {
  margin-top: 10px;
  font-size: 32px;
  font-weight: 700;
  color: #333333;
}

.ai-ability__list .item p {
  margin-top: 8px;
  color: #666666;
  font-size: 18px;
  line-height: 1.7;
}

.ai-ability__output {
  max-width: 1244px;
  margin: 56px auto 0;
  padding: 44px 48px;
  border-radius: 16px;
  background: #fff7ef;
}

.ai-ability__output-title {
  font-size: 32px;
  font-weight: 700;
  color: #333333;
}

.ai-ability__output .list {
  margin-top: 28px;
  display: flex;
  gap: 24px;
}

.ai-ability__output .item {
  flex: 1;
}

.ai-ability__output .item h6 {
  font-size: 24px;
  font-weight: 700;
  color: #ea5e39;
}

.ai-ability__output .item p {
  margin-top: 10px;
  color: #666666;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
}

/* ========== 智能体协作 ========== */
.ai-agent {
  padding: 90px 5%;
  background: #f8f8f8;
}

.ai-agent__chat {
  max-width: 860px;
  margin: 64px auto 0;
  padding: 48px 48px 40px;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 4px 20px 0 rgba(40, 49, 67, 0.08);
}

.ai-agent__chat .msg {
  display: flex;
  margin-bottom: 24px;
}

.ai-agent__chat .msg:last-child {
  margin-bottom: 0;
}

.ai-agent__chat .msg.user {
  justify-content: flex-end;
}

.ai-agent__chat .bubble {
  max-width: 78%;
  padding: 18px 24px;
  border-radius: 16px;
  font-size: 20px;
  line-height: 1.8;
  color: #333333;
}

.ai-agent__chat .user .bubble {
  background: linear-gradient(180deg, #ffb330 0%, #e08a00 100%);
  color: #fff;
  border-top-right-radius: 4px;
}

.ai-agent__chat .ai .bubble {
  background: #f5f5f5;
  border-top-left-radius: 4px;
}

.ai-agent__chat .bubble b {
  color: #ea5e39;
}

.ai-agent__chat .chips {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ai-agent__chat .chips span {
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(251, 133, 54, 0.12);
  color: #ea5e39;
  font-size: 16px;
  font-weight: 600;
}

.ai-agent__note {
  margin-top: 40px;
  text-align: center;
  color: #666666;
  font-size: 20px;
}

/* ========== 可解释可审计 ========== */
.ai-trust {
  padding: 100px 5% 90px;
}

.ai-trust__list {
  max-width: 1244px;
  margin: 64px auto 0;
  display: flex;
  gap: 24px;
}

.ai-trust__list .item {
  flex: 1;
  padding: 40px 36px;
  border-radius: 16px;
  background: #f8f8f8;
  text-align: center;
}

.ai-trust__list .item h6 {
  font-size: 32px;
  font-weight: 700;
  color: #333333;
}

.ai-trust__list .item p {
  margin-top: 16px;
  color: #666666;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.8;
  text-align: left;
}

.ai-trust__note {
  margin-top: 48px;
  text-align: center;
  color: #666666;
  font-size: 20px;
}

/* ========== 结尾 ========== */
.ai-cta {
  padding: 100px 5% 90px;
  background: linear-gradient(160deg, #fff7ef 0%, #fdeedd 100%);
  text-align: center;
}

.ai-cta__list {
  max-width: 1000px;
  margin: 56px auto 0;
  display: flex;
  gap: 24px;
}

.ai-cta__list .item {
  flex: 1;
  padding: 32px 20px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 4px 20px 0 rgba(40, 49, 67, 0.08);
}

.ai-cta__list .item h6 {
  font-size: 32px;
  font-weight: 700;
  color: #ea5e39;
}

.ai-cta__list .item p {
  margin-top: 12px;
  color: #666666;
  font-size: 20px;
  font-weight: 400;
}

.ai-cta__tip {
  max-width: 820px;
  margin: 48px auto;
  color: #666666;
  font-size: 20px;
  line-height: 1.8;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .ai-why__list,
  .ai-position__list,
  .ai-trust__list,
  .ai-cta__list {
    flex-direction: column;
  }

  .ai-ability__list .item {
    width: calc((100% - 20px) / 2);
  }

  .ai-ability__output .list {
    flex-direction: column;
    gap: 20px;
  }

  .ai-compare {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .ai-sub {
    margin-top: 12px;
    font-size: 12px;
  }

  .ai-video,
  .ai-why,
  .ai-position,
  .ai-ability,
  .ai-agent,
  .ai-trust,
  .ai-cta {
    padding: 50px 6.5% 50px;
  }

  .ai-video__cover {
    margin-top: 28px;
    border-radius: 12px;
  }

  .ai-video__play {
    width: 56px;
    height: 56px;
    margin: -28px 0 0 -28px;
  }

  .ai-video__play::before {
    margin: -10px 0 0 -7px;
    border-top-width: 10px;
    border-bottom-width: 10px;
    border-left-width: 16px;
  }

  .ai-video__tag {
    left: 12px;
    bottom: 12px;
    gap: 6px;
    padding: 5px 12px;
    font-size: 12px;
  }

  .ai-video-modal__close {
    right: 8px;
    top: 8px;
    width: 30px;
    height: 30px;
    line-height: 28px;
    font-size: 20px;
  }

  .ai-why__list,
  .ai-position__list,
  .ai-trust__list,
  .ai-cta__list {
    margin-top: 28px;
    gap: 14px;
  }

  .ai-why__list .item,
  .ai-position__list .item {
    padding: 24px 20px;
  }

  .ai-why__list .item .num {
    font-size: 28px;
  }

  .ai-why__list .item h6,
  .ai-position__list .item h6,
  .ai-trust__list .item h6,
  .ai-cta__list .item h6 {
    font-size: 16px;
  }

  .ai-why__list .item p:not(.tag),
  .ai-position__list .item p,
  .ai-trust__list .item p,
  .ai-cta__list .item p {
    font-size: 12px;
  }

  .ai-why__list .item .tag,
  .ai-trust__note,
  .ai-agent__note,
  .ai-cta__tip {
    font-size: 12px;
  }

  .ai-quote {
    margin-top: 28px;
    font-size: 16px;
  }

  .ai-flow {
    margin-top: 28px;
    gap: 6px;
  }

  .ai-flow .step {
    min-width: calc((100% - 24px) / 3);
    padding: 12px 6px;
  }

  .ai-flow .step .name {
    font-size: 14px;
  }

  .ai-flow .step .desc {
    margin-top: 2px;
    font-size: 12px;
  }

  .ai-flow .arrow {
    display: none;
  }

  .ai-compare {
    margin-top: 24px;
    gap: 14px;
  }

  .ai-compare .item {
    padding: 20px;
  }

  .ai-compare .item h6 {
    font-size: 16px;
  }

  .ai-compare .item p {
    margin-top: 8px;
    font-size: 12px;
  }

  .ai-ability__list {
    margin-top: 28px;
    gap: 10px;
  }

  .ai-ability__list .item {
    width: calc((100% - 20px) / 3);
    padding: 16px 8px;
  }

  .ai-ability__list .item h6 {
    font-size: 16px;
  }

  .ai-ability__list .item p {
    font-size: 12px;
  }

  .ai-ability__output {
    margin-top: 28px;
    padding: 24px 20px;
  }

  .ai-ability__output-title {
    font-size: 16px;
  }

  .ai-ability__output .list {
    margin-top: 16px;
  }

  .ai-ability__output .item h6 {
    font-size: 16px;
  }

  .ai-ability__output .item p {
    font-size: 12px;
  }

  .ai-agent__chat {
    margin-top: 28px;
    padding: 24px 16px;
  }

  .ai-agent__chat .bubble {
    max-width: 88%;
    padding: 12px 16px;
    font-size: 14px;
  }

  .ai-agent__chat .chips span {
    font-size: 12px;
    padding: 3px 10px;
  }

  .ai-cta__list .item {
    padding: 20px 12px;
  }

  .ai-cta__tip {
    margin: 28px auto;
  }
}