@font-face {
  font-family: 'Alibaba';
  src: url('../src/fonts/alibaba.ttf') format('truetype');
}

body {
    padding-top: 80px;
    margin: 0;
    background-color: #232529;
    overflow-x: hidden;
    /* background: linear-gradient(-45deg, #205072, #0077b6, #7be495, #90e0ef);
    background-size: 400% 400%;
    animation: mygradient 5s ease infinite; */
}
/* @keyframes mygradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
} */

h1 {
  font-family: 'Alibaba', sans-serif;
  font-weight:300;
  letter-spacing: 2px;
  font-size:48px;
}

h2 {
  font-family: 'Alibaba', Arial, Helvetica, sans-serif;
  font-weight:300;
  letter-spacing: 1px;
  font-size:32px;
}

p {
  font-family: 'Alibaba', Arial, Helvetica, sans-serif;
  letter-spacing: 1px;
  font-size:14px;
  /* color: white; */
}

.flex {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}




/* 轮播图外层容器控制宽度和居中 */
.carousel-wrapper {
  width: 85%;
  max-width: 2000px;
  margin: 100px auto;
  transform: translateY(15px);
  padding-bottom: 50px;
}

/* 默认值：小屏时最低配置 */
.carousel-inner img {
  width: 80%;
  height: 360px;
  object-fit: contain;
}

.carousel-caption {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  max-width: 1000px;
  min-width: 400px;
  text-align: center;
  background: rgba(0, 0, 0, 0.5);
  padding: 30px;
  border-radius: 8px;
}

.carousel-caption p {
  font-size: 10px;
  color: #fff;
  margin: 0;
}


/* 适配 ≥600px 的屏幕：600×360 */
@media (min-width: 700px) {
  .carousel-inner img {
    height: 360px;
  }
}

/* 适配 ≥800px 的屏幕：800×480 */
@media (min-width: 900px) {
  .carousel-inner img {
    height: 480px;
  }
}

/* 适配 ≥1000px 的屏幕：1000×600 */
@media (min-width: 1100px) {
  .carousel-inner img {
    height: 600px;
  }
  .carousel-caption p {
  font-size: 12px;
  }
}

/* 适配 ≥1200px 的屏幕：1200×720 */
@media (min-width: 1300px) {
  .carousel-inner img {
    height: 720px;
  }
  .carousel-caption p {
  font-size: 15px;
  }
}

@media (min-width: 1600px) {
  .carousel-inner img {
    height: 1000px;
  }
  .carousel-caption p {
  font-size: 18px;
  }
}



/* 左右箭头区域添加背景块 */
.carousel-control-prev,
.carousel-control-next {
  width: 60px;                          /* 水平方向大小 */
  height: 80px;                         /* ✅ 控制垂直高度 */
  top: 50%;                             /* 垂直居中定位 */
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.3); /* 半透明背景 */
  transition: background-color 0.3s ease;
  border-radius: 6px;                  /* 可选：圆角美观 */
}

/* 鼠标悬停时更明显 */
.carousel-control-prev:hover,
.carousel-control-next:hover {
  background-color: rgba(0, 0, 0, 0.5);
}

/* 调整箭头图标位置 */
.carousel-control-prev-icon,
.carousel-control-next-icon {
  width: 30px;
  height: 30px;
  background-size: 100% 100%;
  filter: drop-shadow(0 0 2px #fff); /* 可选：让箭头更突出 */
}


/* 主体介绍区整体样式 */
.main-section {
  padding: 0px;
  width: 100%;
  /* background-color: #f9f9f9; */
  background-color: transparent;
}

.main-section-header {
  position: relative;
  display: flex;
  flex-direction: column;
  text-align: center;
  justify-content: center;
  align-items: center;
  padding-bottom: 80px;
  padding-top: 10%;
  margin-bottom: 80px;
  height: 100vh;
  transform: translateY(-40px);
  background-image: linear-gradient(
      rgba(0, 0, 0, 0.8),
      rgba(0, 0, 0, 0.8)
    ),
    url('../src/images/homepage4.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.main-section-header .info-box {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  z-index: 2;
  max-width: 1200px;
  margin: 20px 20px;
  padding: 20px;
  background-color: transparent;
  border-radius: 8px;

}

.main-section-header .left-image {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 150px;
  height: 150px;
  background-image: url('../src/images/homepage-man.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.main-section-header .right-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.main-section-header::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 120px; /* 渐变高度可根据视觉效果调整 */
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, #232529 100%);
  pointer-events: none;
  z-index: 1;
}


.main-section h2 {
  font-size: 76px;
  margin-bottom: 10px;
  text-align: center;
  color: white;
  /* color: #e1e4ea; */
}

.main-section .aside-text {
  font-size: 48px;
  line-height: 1.6;
  color: #ece5e5;
  text-align: right;
  max-width: max(1200px, 90%);
  margin: 0 auto;
  font: "Alibaba", Arial, Helvetica, sans-serif;
}

@media (max-width: 1800px) {
  .main-section h2 {
    font-size: 54px;
  }
  .main-section .aside-text {
    font-size: 36px;
    text-align: center;
  }
}

@media (max-width: 1200px) {
  .main-section h2 {
    font-size: 45px;
  }
  .main-section .aside-text {
    font-size: 28px;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .main-section h2 {
    font-size: 32px;
  }
  .main-section .aside-text {
    font-size: 22px;
  }
}


/* 每一行flex布局 */
.flex-row {
  margin: 0 10%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

/* 文字块样式 */
.text-block {
  flex: 1;
  min-width: 350px;
  padding: 20px;
  border-radius: 10px;
}

.text-block h2 {
  font-size: 30px;
  margin-bottom: 15px;
  color: white;
}

.text-block p {
  font-size: 18px;
  line-height: 1.6;
  color: #e1e4ea;
  text-align: center;
}
.text-block-start p {
  font-size: 20px !important;
}
.text-block-start {
  min-width: 600px !important;
}

/* 图片块样式 */
.image-block {
  flex: 1;
  min-width: 300px;
  padding: 20px;
  text-align: center;
}

.image-block img {
  max-width: min(100%, 800px);
  min-width: 65%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.image-block-start {
  flex: 1;
  min-width: 200px;
  padding: 10px;
  text-align: center;
}
.image-block-start img:hover {
  transform: translateY(-10px);
}
.image-block-start img {
  max-width: min(60%, 600px);
  min-width: max(55%, 200px);
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: 0.3s ease;
}

/* 第二行反转左右 */
.flex-row.reverse {
  flex-direction: row-reverse;
}

/* 响应式优化 */
@media (max-width: 1200px) {
  .flex-row {
    flex-direction: column;
    text-align: center;
  }

  .flex-row.reverse {
    flex-direction: column;
  }

  .text-block, .image-block {
    padding: 10px;
  }

  .text-block-start {
  min-width: 400px !important;
}
}

@media (max-width: 1200px) {
  .flex-row {
    flex-direction: column;
  }

  .flex-row.reverse {
    flex-direction: column;
  }

  /* 小屏下，图片排在前，文字排在后 */
  .image-block {
    order: 1;
  }
  .image-block-start{
    order: 1;
    max-width: 350px;
    margin: 0 auto;
  }

  .text-block {
    order: 2;
  }

  .text-block, .image-block {
    padding: 10px;
    text-align: center;
  }

  .main-section-header {
    height: auto;
  }
}


.reveal {
  opacity: 0;
  transform: translateX(-120px);
  transition: all 1.2s ease-out;
  will-change: transform, opacity;
}

.reveal.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(120px);
  transition: all 1.2s ease-out;
  will-change: transform, opacity;
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}


.container-data {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 50px auto;
  /* background-color: #1c1e23; */
  /* background-color: transparent; */
  background-image: linear-gradient(
      rgba(0, 0, 0, 0.4),
      rgba(0, 0, 0, 0.4)
    ),
    url('../src/images/background/curve3.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 50px 0px;
}
/* 顶部渐变 */
.container-data::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0) 0%, #232529 100%);
  z-index: 1;
  pointer-events: none;
}
/* 底部渐变 */
.container-data::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, #232529 100%);
  z-index: 1;
  pointer-events: none;
}

.lab-info {
  text-align: left;
  font-size: 32px;
  line-height: 1.6;
  min-width: 300px;
  color: #e1e4ea;
  /* background-color: #ffffff; */
  background-color: transparent;
  padding: 40px 30px;
  border-radius: 16px;
  /* box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1); */
}

.lab-picture {
  width: 250px;
  height: 200px;
  margin: 250px 20px;
  /* background-color: white; */
  background-color: transparent;
}
@media (max-width: 898px) {
  .lab-picture {
    width: 100px;
  }
  .lab-info {
    padding: 10px 10px;
  }
}
@media (min-width: 1600px) {
  .lab-picture {
    width: 350px;
  }
}

.container-data > .lab-info p {
  font-size: max(2.8vw, 22px);
}
.very-big-data {
  font-size: max(4.2vw, 40px);
  color: #f9f9f9;
  font-weight: bold;
}


/* 动画 按钮 */
.footer {
  position: relative;
  text-align: center;
  /* background: linear-gradient(60deg, rgb(48, 80, 176), rgb(9, 48, 86), rgb(30, 60, 120), rgb(10, 30, 60));
  background-size: 400% 400%;
  animation: footerGradient 8s linear infinite; */
  background-color: #1c1e23;
  color: white;
}
/* @keyframes footerGradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
} */


.inner-footer {
  min-height: 65vh;
  width: 100%;
  margin: 0;
  padding: 5rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.card-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
  max-width: 1600px;
  padding: 0 1rem;
}
@media (min-width: 1500px) {
  .card-container {
    gap: 8rem;
  }
}

.footer-card {
  width: 250px;
  height: 250px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 1rem;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  z-index: 10;
}

.footer-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.card-text {
  background: rgba(0, 0, 0, 0.5);
  color: white;
  padding: 1rem;
  width: 100%;
  letter-spacing: 2px;
  font-size: 1.1rem;
  font-weight: bold;
  text-align: center;
  font-family: 'Alibaba', Arial, Helvetica, sans-serif;
}


.waves {
  position:relative;
  width: 100%;
  height:15vh;
  margin-bottom:-7px; /*Fix for safari gap*/
  min-height:100px;
  max-height:150px;
}


/* Animation */

.parallax > use {
  animation: move-forever 25s cubic-bezier(.55,.5,.45,.5)     infinite;
}
.parallax > use:nth-child(1) {
  animation-delay: -2s;
  animation-duration: 7s;
}
.parallax > use:nth-child(2) {
  animation-delay: -3s;
  animation-duration: 10s;
}
.parallax > use:nth-child(3) {
  animation-delay: -4s;
  animation-duration: 13s;
}
.parallax > use:nth-child(4) {
  animation-delay: -5s;
  animation-duration: 20s;
}
@keyframes move-forever {
  0% {
   transform: translate3d(-90px,0,0);
  }
  100% { 
    transform: translate3d(85px,0,0);
  }
}
/*Shrinking for mobile*/
@media (max-width: 768px) {
  .waves {
    height:40px;
    min-height:40px;
  }
  .content {
    height:30vh;
  }
  h1 {
    font-size:24px;
  }
}


/* Selected Publication */
.representative-paper{
  width: 90%;
  margin: 1rem auto 10rem auto;
  padding: 1rem;
}
.representative-paper h2{
  font-size: 45px;
  color: #f9f9f9;
  margin-bottom: 1rem;
  text-align: left;
}
.paper-container{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
  margin-bottom: 2rem;
}
.paper-text{
  color: #f9f9f9;
  padding: 2rem;
  width: 800px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  order: 0;
}
.paper-title{
  font-size: 28px;
  font-weight: bold;
  margin-bottom: 0.5rem;
  font-family: 'Alibaba', Arial, Helvetica, sans-serif;
}
.paper-intro > p{
  color: #f9f9f9;
  line-height: 1.5;
  font-size: 18px;
}
.paper-image{
  width: 350px;
  height: auto;
  border-radius: 1rem;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  order: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}
.paper-image > img{
  width: 100%;
  height: auto;
  border-radius: 1rem;
}
.paper-intro > a{
  margin-top: 1rem;
  color: #f9f9f9;
  text-decoration: none;
  font-weight: bold;
  font-family: 'Alibaba', Arial, Helvetica, sans-serif;
  font-size: 18px;
}
.paper-intro > a:hover {
  text-decoration: underline;
}

@media (min-width: 2000px) {
  .paper-text{
    width: 1200px;
  }
  .paper-title{
    font-size: 36px;
  }
  .paper-intro > p, .paper-intro > a {
    font-size: 22px;
  }
  .paper-image{
    width: 450px;
  }
  .paper-container{
    gap: 4rem;
  }
    .image-block-start {
    padding: 100px 200px;
    min-width: 700px;
  }
  .text-block-start p {
    font-size: 25px !important;
  }
  .text-block-start {
    min-width: 500px !important;
  }
  .text-block p{
    font-size: 25px;
  }
  .text-block-start {
    min-width: 720px !important;
  }
}

@media (min-width: 1700px) {
  .paper-text{
    width: 1000px;
  }
  .paper-image{
    width: 400px;
  }
  .image-block-start {
    padding: 50px 100px;
  }
}

@media (max-width: 1500px) {
  .paper-text{
    width: 600px;
  }
  .paper-title{
    font-size: 28px;
  }
  .paper-intro > p, .paper-intro > a {
    font-size: 18px;
  }
  .paper-image{
    width: 300px;
  }
}

@media (max-width: 600px) {
  .paper-text{
    width: 500px;
  }
  .paper-title{
    font-size: 18px;
  }
  .paper-intro > p, .paper-intro > a {
    font-size: 14px;
  }
    .representative-paper h2{
    font-size: 26px;
  }
}

@media (max-width: 824px) {
    .representative-paper h2{
    font-size: 32px;
  }
}

/* @media (max-width: 968px) {
  .paper-container {
    flex-direction: column;
    align-items: center;
  }
  .paper-title {
    font-size: 24px;
  }
  .paper-intro > p, .paper-intro > a {
    font-size: 16px;
  }
  .paper-image {
    order: 1;
    width: 360px;
  }
  .paper-text {
    order: 2;
    width: 400px;
  }
} */


/* 首页加载动画 */
/* loader 全屏 */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    z-index: 9999;
    overflow: hidden;
}

/* loader 中心内容 */
.loader-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-align: center;
    z-index: 10;
    padding: 50px;
    border-radius: 15px;
}

/* 转圈动画 */
.spinner {
    border: 8px solid rgba(255,255,255,0.2);
    border-top: 8px solid white;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    margin: 20px auto;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg);}
    100% { transform: rotate(360deg);}
}

/* 文字样式 */
.loader-content h1 { font-size: 2.7em; margin-bottom: 10px; }
.loader-content p { font-size: 2em; }

/* 黑色门帘 */
.door {
    position: absolute;
    left: 0;
    width: 100%;
    height: 50%;
    background-color: rgb(29, 28, 28, 1);
    z-index: 5;
    transition: transform 0.7s ease;
}
.door.mask-top { top: 0; transform: translateY(0); }
.door.mask-bottom { bottom: 0; transform: translateY(0); }

/* 开门动画 */
.door.open.mask-top { transform: translateY(-100%); }
.door.open.mask-bottom { transform: translateY(100%); }

/* 隐藏 loader 内容 */
.loader-content.hidden {
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* 星星样式 */
.star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: white;
  border-radius: 50%;
  opacity: 0.8;
  animation: twinkle 2s infinite alternate;
}

@keyframes twinkle {
  0% { opacity: 0.3; }
  50% { opacity: 1; }
  100% { opacity: 0.3; }
}