* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

.box {
  width: 100%;
  height: 100%;
}
html {
  scroll-behavior: smooth;
}
body {
  overflow-x: hidden;
}

/* 头部 */
.top {
  width: 100%;
  height: 50px;
  background-color: black;
  color: white;
  display: flex;
  justify-content: space-between;
  position: fixed;
  z-index: 10;
}

.top-left {
  width: 40%;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-left a {
  width: 20%;
  font-size: 16px;
  color: #cdcbcb;
  text-decoration: none;
  text-align: center;
}

.top-center {
  width: 40%;
  cursor: pointer;

  color: #e5b1b1;
  height: 100%;
  display: flex;
  justify-content: left;
  padding-left: 6%;
  align-items: center;
  font-size: 35px;
  font-weight: bold;
  text-shadow: 
    1px 1px 0 #000, /* 右下角的阴影 */
    2px 2px 0 #000, /* 增加阴影的深度 */
    3px 3px 0 #000, /* 增加更多的阴影 */
    4px 4px 0 #000, /* 增加更多的阴影 */
    5px 5px 0 #000; /* 增加更多的阴影 */
}

.top-right {
  width: 20%;
  height: 100%;
  text-align: right;
  padding-right: 10%;
}

.top-right a {
  height: 50px;
  line-height: 50px;
  margin-right: 10px;
  text-decoration: none;
  color: white;
}

/* home */
.home {
  width: 100vw;
  height: 100vh;
  position: relative;
}

.home video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.two {
  width: 100vw;
  height: 100vh;
  background-color: #e195b3;
  display: flex;
  justify-content: center;
  align-items: center;
}

.two .avatar {
  width: 250px;
  height: 250px;
  border-radius: 100%;
  cursor: pointer;
}



.two .right {
  width: 800px;
  margin: 100px;
  display: none;
}

.two .left {
  width: 250px;
  height: 250px;
  border-radius: 100%;
  cursor: pointer;
  background-color: black;
  text-align: center;
  line-height: 250px;
  color: white;
  font-size: 20px;
  font-weight: bold;
  transition: all 0.5s;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  display: none;
}

.two .right .title {
  width: 100%;

  font-weight: bold;
  display: flex;
  justify-content: left;
  align-items: center;
  font-size: 40px;
}

.three {
  width: 100vw;
  height: 100vh;
  background-color: #000000;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.three-jisso {
  width: 25%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.three .avatar {
  width: 250px;
  height: 250px;
  border-radius: 100%;
  cursor: pointer;
}

.three .right {
  width: 500px;
  margin: 100px;
  display: none;
  color: white;
  position: absolute;
  left: 50%;
}

.three .left {
  width: 250px;
  height: 250px;
  border-radius: 100%;
  cursor: pointer;
  background-color: pink;
  text-align: center;
  line-height: 250px;
  color: white;
  font-size: 20px;
  font-weight: bold;
  transition: all 0.5s;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  display: none;
}

.three .right .title {
  font-weight: bold;
  text-align: center;
  font-size: 20px;
}

.three-jennie img {
  margin-bottom: 40%;
}

.three-lisa img {
  margin-bottom: 40%;
}

.three-jennie .left {
  margin-bottom: 40%;
}

.three-lisa .left {
  margin-bottom: 40%;
}

/* 第四部分 */
.four{
  width: 100vw;
  height: 120vh;
  background-color: black;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-left: 10%;
  padding-right: 10%;
  padding-top: 0;
  overflow: hidden;
}
.four h2{
  width: 100%;
  height: 10%;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 35px;
  margin-bottom: 30px;
}
.four-box{
  width: 100%;
  height: 18%;
  display: flex;
  justify-content: space-between;
  padding: 10px;
}
.four-box img{
  width: 14%;
  height: 100%;
}
.four-box span{
  width: 85%;
  height: 100%;
  font-size: 12px;
  color: white;
  padding: 2px;
}


/* 第五部分 */
.five {
  width: 100vw;
  height: 100vh;
  background-color: #e195b3;
  display: flex;
  justify-content: center;
  align-items: center;
}

.form {
  width: 40%;
  height: 60%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  justify-content: space-between;
  padding: 20px;
  border-radius: 20px;
  position: relative;
  background-color: transparent;
  color: #fff;
}

.title {
  width: 100%;
  height: 20%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 80px;
}

.form label {
  position: relative;
  height: 13%;
}

.form label .input {
  background-color: #f9d6d6;
  color: black;
  width: 100%;
  height: 100%;
  padding: 20px 05px 05px 10px;
  outline: 0;
  border: 1px solid rgba(105, 105, 105, 0.397);
  border-radius: 10px;
}

.form label span {
  color: black;
}

.form label .input + span {
  position: absolute;
  left: 10px;
  top: 0px;
  font-size: 0.9em;
  cursor: text;
  transition: 0.3s ease;
}

.form label .input:placeholder-shown + span {
  top: 12.5px;
  font-size: 0.9em;
}

/* 输入框获得焦点时，span 标签移动 */
.form label .input:focus + span {
  color: #00bfff;
  top: 0px;
  font-size: 0.7em;
  font-weight: 600;
}

.input {
  font-size: medium;
  
}

.submit {
  width: 30%;
  margin-left: 70%;
  height: 10%;
  border: none;
  outline: none;
  padding: 10px;
  border-radius: 50%;
  color: #fff;
  font-size: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  transform: .3s ease;
  background-color: #000000;
}

.message-input {
  height: calc(100% - 40px); /* 使 textarea 高度减去 padding 的高度 */
  padding-top: 10px; /* 确保文本从顶部开始 */
  resize: none;
}

.submit:hover {
  background-color: #2a8cac96;
  cursor: pointer;
}

@keyframes pulse {
  from {
    transform: scale(0.9);
    opacity: 1;
  }

  to {
    transform: scale(1.8);
    opacity: 0;
  }
}

/* 滑动的动画 */
@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.hidden {
    opacity: 0;
}

.animated {
    animation: slideUp 2s ease forwards;
}