.banner {
  position: relative;
  width: 100%;
  height: 100vh;
  background: url(../images/knowledge-banner.jpg) fixed;
}
.banner .infobox {
  display: flex;
  align-items: center;
  position: relative;
  width: 80%;
  height: 100vh;
  margin: 0 auto;
}
.banner .infobox .info {
  text-align: center;
  position: absolute;
  bottom: 25%;
  left: 50%;
  transform: translate(-50%);
}
.banner .infobox .info p {
  font-size: 24px;
  font-weight: 200;
  color: #fff;
}
.banner .infobox .info h4 {
  font-weight: normal;
  font-size: 46px;
  color: #ffffff;
}
.banner .mouse-prompt {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  left: 50%;
  bottom: 30px;
  transform: translate(-50%);
  animation: mouse 2s linear infinite;
}
.banner .mouse-prompt .icon-shubiao {
  color: #fff;
  opacity: 0.6;
  font-size: 24px;
}
.banner .mouse-prompt p {
  text-align: center;
  font-weight: 100;
  font-size: 16px;
  color: #fff;
  opacity: 0.6;
}
@keyframes mouse {
  0% {
    bottom: 30px;
    animation-timing-function: ease-in;
    opacity: 0;
  }
  25% {
    bottom: 25px;
    opacity: 0.8;
  }
  50% {
    bottom: 20px;
    opacity: 0.4;
  }
  75% {
    bottom: 15px;
    opacity: 0.1;
  }
  100% {
    bottom: 10px;
    animation-timing-function: ease-out;
    opacity: 0;
  }
}
.dw {
  width: 100%;
  min-height: 850px;
  padding-bottom: 60px;
  background: url(../images/knowledge-bg01.jpg) center center no-repeat;
  background-size: cover;
}
.dw .introduce {
  margin: 0 auto;
  width: 60%;
  text-align: center;
  padding-top: 100px;
}
.dw .introduce h5 {
  margin: 0 auto;
  font-size: 46px;
  font-weight: 400;
  background-image: linear-gradient(60deg, #1554a0, #07bba4);
  -webkit-background-clip: text;
  color: transparent;
  width: 50%;
}
.dw .introduce .line {
  margin: 0 auto;
  width: 600px;
  height: 1px;
  margin-top: 30px;
  background-image: linear-gradient(90deg, rgba(21, 83, 160, 0) 0%, rgba(21, 83, 160, 0.49) 50%, rgba(21, 83, 160, 0.49) 75%, rgba(21, 83, 160, 0) 100%);
}
.dw .introduce p {
  padding-top: 60px;
  font-size: 18px;
  color: #555;
  line-height: 36px;
}
.dw .ktable {
  width: 80%;
  max-width: 900px;
  margin: 0 auto;
  margin-top: 50px;
  font-size: 16px;
  color: #555555;
}
.dw .ktable table {
  border-collapse: collapse;
  border-spacing: 0;
  border: 1px solid #ddd;
  width: 100%;
  margin: 30px auto 20px;
  text-align: center;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  overflow: hidden;
}
.dw .ktable th {
  background: linear-gradient(135deg, #1553a0 0%, #1a6bb8 100%);
  font-size: 15px;
  font-weight: 500;
  color: #fff;
  padding: 16px 12px;
  border: none;
  border-right: 1px solid rgba(255,255,255,0.2);
}
.dw .ktable th:last-child {
  border-right: none;
}
.dw .ktable td {
  border: 1px solid #e8e8e8;
  color: #555;
  padding: 14px 12px;
  background-color: #fff;
  font-size: 14px;
}
.dw .ktable tr:nth-child(even) td {
  background-color: #f8fbff;
}
.dw .ktable tr:nth-child(2) td {
  background-color: #e8f4fd;
  font-weight: 500;
  color: #1553a0;
}
.dw .ktable tr td:first-child {
  font-weight: 600;
  background: #f5f5f5;
  color: #333;
  text-align: left;
  padding-left: 20px;
}
.dw .ktable tr:nth-child(2) td:first-child {
  background: linear-gradient(135deg, #e8f4fd 0%, #d4ecfa 100%);
  color: #1553a0;
}
.dw .ktable tr:hover td {
  background-color: #f0f7ff;
}
.dw .ktable tr:nth-child(2):hover td {
  background-color: #d9effc;
}
.adv {
  width: 100%;
  min-height: 650px;
  padding: 60px 0 80px;
  background: url(../images/knowledge-bg02.jpg) center center no-repeat;
  background-size: cover;
}
.adv .content {
  display: flex;
  width: 80%;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto;
  padding-top: 40px;
}
.adv .content .left {
  width: 45%;
}
.adv .content .left h5 {
  font-size: 36px;
  padding-bottom: 40px;
  font-weight: 400;
}
.adv .content .left p {
  font-size: 18px;
  color: #555555;
  line-height: 36px;
}
.adv .content .right {
  width: 50%;
}
.adv .content .right .box {
  width: 100%;
  height: 520px;
  border-radius: 4px;
  overflow: hidden;
  background-color: #555;
}
.adv .content .right .box img {
  width: 100%;
  transition: all 0.6s;
}
.adv .content .right .box:hover img {
  transform: scale(1.1);
}
.influence {
  width: 100%;
  min-height: 665px;
  padding: 60px 0 80px;
  background: url(../images/knowledge-bg03.jpg) center center no-repeat;
  background-size: cover;
}
.influence .content {
  width: 80%;
  margin: 0 auto;
}
.influence .content .tittle h5 {
  font-size: 36px;
  padding-bottom: 40px;
  font-weight: 400;
}
.influence .content .contbox {
  width: 100%;
  display: flex;
  justify-content: space-between;
}
.influence .content .contbox .box {
  display: flex;
  flex-direction: column;
  width: 30%;
  height: 440px;
  background-color: #fff;
  border-radius: 3px;
  padding: 50px 54px 80px;
  transition: all 1s;
}
.influence .content .contbox .box img {
  width: 46px;
  transition: all 0.6s;
}
.influence .content .contbox .box p {
  font-size: 18px;
  padding: 40px 0;
  color: #333333;
}
.influence .content .contbox .box span {
  font-size: 18px;
  color: #888888;
  line-height: 36px;
}
.influence .content .contbox .box:hover {
  box-shadow: 0px 0px 30px rgba(12, 24, 71, 0.1);
}
.influence .content .contbox .box:hover img {
  transform: scale(1.2);
}
.usage {
  width: 100%;
  height: 665px;
  background: url(../images/knowledge-bg04.jpg) center center no-repeat;
  background-size: cover;
}
.usage .content {
  width: 80%;
  margin: 0 auto;
}
.usage .content .tittle h5 {
  font-size: 36px;
  padding-bottom: 40px;
  font-weight: 400;
}
.usage .content ul {
  width: 100%;
  display: flex;
  justify-content: space-between;
}
.usage .content ul li {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 440px;
  overflow: hidden;
}
.usage .content ul li .pic {
  border-radius: 4px;
  height: 310px;
  overflow: hidden;
}
.usage .content ul li .pic img {
  width: 100%;
  height: 100%;
  transition: all 0.6s;
}
.usage .content ul li .mask {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 310px;
  padding: 30px;
  background-image: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
  opacity: 0;
  transition: all 0.5s;
  display: flex;
  align-items: flex-end;
}
.usage .content ul li .mask p {
  font-size: 16px;
  color: #fff;
  line-height: 30px;
}
.usage .content ul li .tittle {
  padding-top: 30px;
}
.usage .content ul li .tittle p {
  font-size: 20px;
  padding-bottom: 10px;
}
.usage .content ul li .tittle span {
  font-size: 18px;
  color: #555;
}
.usage .content ul li:hover .mask {
  opacity: 1;
}
.usage .content ul li:hover img {
  transform: scale(1.1);
}
@media screen and (max-width: 1280px) {
  .dw {
    height: auto;
    background-color: #f8fbff;
  }
  .adv .content .right .box {
    display: table-cell;
    text-align: center;
    vertical-align: middle;
    height: auto;
  }
  .influence .contbox .box {
    padding: 30px !important;
  }
  .usage img {
    width: auto !important;
  }
}
@media screen and (max-width: 992px) {
  h5 {
    font-size: 26px !important;
  }
  .banner {
    overflow: hidden;
  }
  .banner h4 {
    font-size: 30px !important;
  }
  .banner p {
    font-size: 18px !important;
  }
  .dw {
    height: auto;
    overflow: hidden;
  }
  .dw .introduce {
    width: 90%;
    overflow: hidden;
  }
  .dw .introduce .line {
    width: 60%;
  }
  .dw .introduce p {
    font-size: 16px;
  }
  .dw .ktable {
    width: 95%;
    overflow-x: auto;
    margin-top: 20px;
  }
  .dw .ktable table {
    margin: 20px auto;
    min-width: 600px;
  }
  .dw .ktable th {
    font-size: 13px;
    padding: 12px 8px;
  }
  .dw .ktable td {
    font-size: 12px;
    padding: 10px 8px;
  }
  .dw .ktable tr td:first-child {
    padding-left: 10px;
  }
  .adv {
    height: auto;
    overflow: hidden;
  }
  .adv .content {
    width: 90%;
    flex-direction: column;
  }
  .adv .content .left {
    width: 100%;
  }
  .adv .content .left p {
    font-size: 16px;
  }
  .adv .content .right {
    width: 100%;
    margin-top: 40px;
  }
  .adv .content .right .box {
    height: auto;
  }
  .influence {
    padding-top: 60px;
    height: auto;
    overflow: hidden;
  }
  .influence .content {
    width: 90%;
  }
  .influence .content .contbox {
    flex-direction: column;
  }
  .influence .content .contbox .box {
    width: 100%;
    margin-bottom: 30px;
    padding: 50px 30px 30px;
    height: 400px;
  }
  .influence .content .contbox .box span {
    font-size: 16px;
  }
  .usage {
    overflow: hidden;
    height: auto;
  }
  .usage .content {
    width: 90%;
  }
  .usage .content ul {
    flex-direction: column;
  }
}

/* 表格注释 */
.table-note {
  text-align: right;
  font-size: 13px;
  color: #999;
  margin-top: 0;
  margin-bottom: 20px;
  font-style: italic;
}

/* 标题副标题 */
.influence .content .tittle .subtitle {
  font-size: 16px;
  color: #666;
  margin-top: -30px;
  margin-bottom: 30px;
}

/* 四列布局调整 */
.influence .content .contbox {
  flex-wrap: wrap;
  gap: 20px;
}
.influence .content .contbox .box {
  width: calc(25% - 15px);
  height: auto;
  min-height: 380px;
  padding: 40px 30px;
}

/* FAQ问答区 */
.faq-section {
  width: 100%;
  padding: 80px 0;
  background: linear-gradient(135deg, #f8fbff 0%, #e8f4fd 100%);
}
.faq-content {
  width: 80%;
  margin: 0 auto;
}
.faq-content .tittle h5 {
  font-size: 36px;
  font-weight: 400;
  margin-bottom: 40px;
  text-align: center;
}
.faq-list {
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: 8px;
  margin-bottom: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}
.faq-question {
  display: flex;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  transition: background 0.3s;
}
.faq-question:hover {
  background: #f8fbff;
}
.faq-question .q-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #1553a0 0%, #07bba4 100%);
  color: #fff;
  border-radius: 50%;
  font-weight: bold;
  font-size: 16px;
  margin-right: 15px;
  flex-shrink: 0;
}
.faq-question h6 {
  flex: 1;
  font-size: 18px;
  font-weight: 500;
  color: #333;
  margin: 0;
}
.faq-question .arrow {
  color: #1553a0;
  font-size: 12px;
  transition: transform 0.3s;
}
.faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
}
.faq-answer {
  display: none;
  padding: 0 25px 25px 72px;
  font-size: 16px;
  color: #555;
  line-height: 1.8;
}
.faq-answer a {
  color: #1553a0;
  text-decoration: none;
}
.faq-answer a:hover {
  text-decoration: underline;
}
.faq-item.active .faq-answer {
  display: block;
}

/* 参考文献区 */
.references-section {
  width: 100%;
  padding: 60px 0 80px;
  background: #fff;
}
.references-content {
  width: 80%;
  margin: 0 auto;
}
.references-content .tittle h5 {
  font-size: 28px;
  font-weight: 400;
  margin-bottom: 30px;
  color: #333;
  border-bottom: 2px solid #1553a0;
  padding-bottom: 15px;
  display: inline-block;
}
.references-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.references-list li {
  padding: 15px 0;
  border-bottom: 1px solid #eee;
  font-size: 15px;
  color: #555;
  line-height: 1.7;
}
.references-list li:last-child {
  border-bottom: none;
}
.references-list .ref-type {
  display: inline-block;
  background: #e8f4fd;
  color: #1553a0;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 12px;
  margin-right: 10px;
}
.references-list em {
  font-style: italic;
  color: #333;
}
.references-list a {
  color: #1553a0;
  text-decoration: none;
  margin-left: 5px;
}
.references-list a:hover {
  text-decoration: underline;
}

/* 响应式调整 */
@media screen and (max-width: 1280px) {
  .influence .content .contbox .box {
    width: calc(50% - 10px);
  }
}
@media screen and (max-width: 992px) {
  .table-note {
    margin-top: 10px;
  }
  .influence .content .contbox .box {
    width: 100%;
    min-height: auto;
  }
  .faq-content,
  .references-content {
    width: 90%;
  }
  .faq-question h6 {
    font-size: 16px;
  }
  .faq-answer {
    padding-left: 25px;
  }
}