.header {
  height: 13vh;
  background-color: #00309c;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
}

.header-slogan {
  font-size: 12px;
  font-family: "宋体";
  font-weight: bold;
  margin: auto 20px;
  overflow: hidden;
}
.header-slogan-date {
  color: #f8941f;
  margin: 12px 6px;
}
.header-slogan-salutation {
  margin-left: 3em;
  color: #dbe2f7;
}

.header-slogan-salutation em {
  font-style: italic;
  /* animation: blink 1s infinite; */
}


@keyframes blink {
  0% { opacity: 0.9; }
  50% { opacity: 0.6; }
  100% { opacity: 0.9; }
}

.header-slogan-salutation span {
  font-style: italic;
  animation: blink 3s infinite;
}

.header-author {
  text-align: right;
  margin: 3px 6px;
}

.header-border {
  height: 1px;
  width: 100%;
}

.main {
  height: 74vh;
  background-image: url(../image/bg.gif);
  background-size: cover;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.main-left {
  margin-right: 36px;
}

.main-center {
  width: 1px;
  height: 100%;
  margin: 0 10px;
}

.main-center img {
  width: 50%;
  height: 50%;
}

.main-right {
  margin-left: 10px;
}

.footer {
  height: 13vh;
  width: 100%;
  background-color: #00309c;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  overflow: hidden;
}

.footer-border {
  height: 1px;
  width: 100%;
}

.footer-content {
  width: 100%;
  height: calc(13vh-1px);
  color: white;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: stretch;
}

.footer-content-left {
  width: 240px;
  margin-left: 20px;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
}

.footer-content-left a:nth-child(2n + 1) {
  width: 40px;
}

.footer-content-left a:nth-child(2n) {
  width: 80px;
  color: #f8941f;
  font-weight: bold;
  font-size: 14px;
  font-family: "宋体";
}

.footer-content-right {
  margin: 10px 10px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-end;
}

.footer-content-right strong {
  color: #dbe2f7;
  margin-bottom: 20px;
  font-size: 12px;
  font-family: "宋体";
  font-weight: bold;
}

.footer-content-right p {
  font-size: 9px;
  margin-top: 4px;
  font-family: "Verdana";
  color: #dbe2f7;
}

.footer-content-right p em {
  font-size: 9px;
  font-weight: bold;
  color: white;
  font-style: italic;
}