body {
  margin: auto;
  font-family: PingFangSC-Regular, Roboto, Helvetica Neue, Helvetica, Tahoma,
    Arial, PingFang SC-Light, Microsoft YaHei;
  background-color: #ffffff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* 背景流线装饰容器 */
.background-flow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

a {
  text-decoration:none;
  user-select:none;
  -webkit-user-drag: none;
}

span {
  user-select:none;
}

img {
  user-select:none;
  -webkit-user-drag: none;
}

.dox {
    width: 80%;
    padding-top: 10vh;
    margin: 10vh auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

/* 圆形流线装饰 */
.flow-circle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 134, 216, 0.1) 0%, rgba(52, 134, 216, 0) 70%);
  filter: blur(20px);
}

.circle-1 {
  width: 500px;
  height: 500px;
  top: -100px;
  right: -200px;
  animation: float 20s ease-in-out infinite;
}

.circle-2 {
  width: 400px;
  height: 400px;
  bottom: -150px;
  left: -150px;
  animation: float 25s ease-in-out infinite 5s;
}

/* 波浪流线装饰 */
.flow-wave {
  position: absolute;
  background: linear-gradient(135deg, rgba(52, 134, 216, 0.15) 0%, rgba(52, 134, 216, 0) 100%);
  border-radius: 50% / 50%;
  transform: rotate(45deg);
  filter: blur(15px);
}

.wave-1 {
  width: 300px;
  height: 150px;
  top: 30%;
  left: -100px;
  animation: wave-move 15s ease-in-out infinite;
}

.wave-2 {
  width: 400px;
  height: 200px;
  bottom: 20%;
  right: -150px;
  animation: wave-move 18s ease-in-out infinite 3s;
}

/* 音符装饰 */
.flow-note {
  position: absolute;
  width: 80px;
  height: 80px;
  opacity: 0.1;
  background-image: linear-gradient(135deg, #3486D8 0%, #3486D8 100%);
  clip-path: polygon(50% 0%, 80% 20%, 80% 60%, 50% 80%, 20% 60%, 20% 20%);
}

.note-1 {
  top: 20%;
  right: 20%;
  transform: rotate(30deg);
  animation: note-float 10s ease-in-out infinite;
}

.note-2 {
  bottom: 30%;
  left: 15%;
  transform: rotate(-45deg);
  animation: note-float 12s ease-in-out infinite 2s;
}

/* 音符尾部 */
.flow-note::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 30px;
  background-color: rgba(52, 134, 216, 0.1);
  border-radius: 50%;
  top: 100%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* 动画定义 */
@keyframes float {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-30px) scale(1.05);
  }
}

@keyframes wave-move {
  0%, 100% {
    transform: rotate(45deg) translateX(0) scale(1);
  }
  25% {
    transform: rotate(45deg) translateX(20px) scale(1.05);
  }
  50% {
    transform: rotate(45deg) translateX(0) scale(1);
  }
  75% {
    transform: rotate(45deg) translateX(-20px) scale(0.95);
  }
}

@keyframes note-float {
  0%, 100% {
    transform: rotate(0deg) translateY(0);
  }
  25% {
    transform: rotate(15deg) translateY(-15px);
  }
  50% {
    transform: rotate(0deg) translateY(0);
  }
  75% {
    transform: rotate(-15deg) translateY(15px);
  }
}

.left-Introduce {
    flex: 1;
    min-width: 300px;
    margin-right: 50px;
}

.title-group {
    margin-bottom: 20px;
}

.title {
    font-size: 70px;
    font-weight: 900;
    color: #000000;
    display: block;
    line-height: 75px;
    letter-spacing: -1px;
}

.discription {
    margin-bottom: 30px;
}

.discription-text {
    font-size: 28px;
    font-weight: 500;
    color: #000000;
    line-height: 1.6;
}

.inline-word {
    color: #3486D8;
    font-weight: 500;
}

.first-stack-links {
    margin-top: 20px;
}

.about-button {
    display: inline-block;
    padding: 12px 24px;
    background-color: #000000;
    color: #ffffff;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.about-button:hover {
    background-color: #3486D8;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.right-stack {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
}

.banner-img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 16px;
    transition: transform 0.3s ease;
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0px);
    }
}

.banner-img:hover {
    transform: scale(1.02) translateY(0);
    animation-play-state: paused;
}

.footer {
    width: 100%;
    padding: 20px;
    background-color: #ffffff;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    margin-top: auto;
}

.info {
    color: #999999;
    font-size: 12px;
    margin: 5px 0;
}

.info-group {
    margin-top: 5px;
}

@media (max-width: 768px) {
    .dox {
        padding-top: 1vh;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .left-Introduce {
        margin-right: 0;
        margin-bottom: 30px;
    }
    
    .title {
        font-size: 36px;
    }
    
    .banner-img {
        max-width: 300px;
    }
}