.page {
  width: 100vw;
  height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#center {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center; /* 垂直居中 */
  align-items: center;     /* 水平居中 */
}

#center > div:first-child {
  display: flex;
  width: 100%;
  max-width: 600px;
  margin-bottom: 2rem;
}

/* 输入框美化 */
#vidInput {
  flex: 1;
  padding: 12px 20px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 24px 0 0 24px; /* 左侧圆角 */
  outline: none;
  transition: border-color 0.3s;
}

#vidInput:focus {
  border-color: #0088ff;
}

/* 按钮美化 */
#vidEnter {
  padding: 0 25px;
  background-color: #f8f8f8;
  border: 1px solid #ccc;
  border-left: none;
  border-radius: 0 24px 24px 0; /* 右侧圆角 */
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 0.2s;
}

#vidEnter:hover {
  background-color: #f0f0f0;
}

/* 提示文字美化 */
#centerTips {
  color: #606060;
  font-size: 0.95rem;
  max-width: 500px;
  text-align: center;
  line-height: 1.6;
  white-space: pre;
}

/* 底部栏微调 */
.bottombar {
  font-size: 0.85rem;
  color: #717171;
  border-top: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.bottombar a {
  color: #065fd4;
  text-decoration: none;
}