@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@100..900&family=Noto+Serif+SC:wght@200..900&family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap');

/* 
.open-sans-<uniquifier> {
  font-family: "Open Sans", sans-serif;
  font-optical-sizing: auto;
  font-weight: <weight>;
  font-style: normal;
  font-variation-settings:
    "wdth" 100;
}

.noto-sans-sc-<uniquifier> {
  font-family: "Noto Sans SC", sans-serif;
  font-optical-sizing: auto;
  font-weight: <weight>;
  font-style: normal;
}

.noto-serif-sc-<uniquifier> {
  font-family: "Noto Serif SC", serif;
  font-optical-sizing: auto;
  font-weight: <weight>;
  font-style: normal;
} 
*/

:root {
  --c-blue: #266bb9;
  --c-green: #339966;
  --c-graygreen: #94a3a3;
}

* {
  margin: 0;
  box-sizing: border-box;
  font-family: "Open Sans", "Noto Sans SC", sans-serif;
}

html {
  font-size: 16px;
}

h2,
p {
  font-family: "Open Sans", "Noto Sans SC", sans-serif;
}

/* logo area ===================================== */
.logo-area {
  background: url(./img/hr_header.svg) no-repeat center center;
  max-width: 1200px;
  height: 250px;
  margin: 0 auto;

  display: flex;
}

.logo-area p {
  font-weight: bold;
}

.dulub-logo {
  /* background-color: blue; */
  padding-top: 30px;
  padding-left: 80px;
  margin-left: 20px;

  text-align: center;
}

.dulub-logo img {
  max-width: 280px;
}

.tse-logo {
  padding-top: 100px;
  padding-left: 90px;

  text-align: center;
}

.tse-logo p {
  color: var(--c-blue);
}

.tse-logo hr {
  background-color: var(--c-blue);
  height: 5px;
}

/* introduce area ========================== */
/* paul */
.introduce {
  background-color: #f7f6ee76;
}

.paul {
  max-width: 1000px;
  /* height: 500px; */
  margin-top: 25px;
  margin-left: auto;
  margin-right: auto;
  padding-bottom: 25px;
}

.intro {
  display: inline-flex;
  margin: 15px auto;
  text-align: center;
  align-items: center;
}

.paul img {
  border-radius: 50%;
  margin-right: 15px;
}

.intro-name {
  background-color: var(--c-blue);
  height: 150px;
  color: white;
  font-size: 40px;
  text-align: center;
  align-content: end;

  border-radius: 25px 25px 0 0;
}

.intro-name p{
  font-size: 25px;
}

.intro-txt p {
  margin: 10px;
}

/* honor */
.honor {
  display: flex;
  margin: 0 auto;
  align-items: center;
  margin-top: 15px;
}

.honor h2 {
  background-color: var(--c-blue);
  color: white;
  font-size: 30px;
  margin-right: 20px;
  padding: 25px 15px;
  border-radius: 4px;
}

.honor img {
  border-radius: 4px;
  margin-left: 40px;
}

/* experience */
.experience {
  margin-top: 20px;
  text-align: center;
}

.experience h2 {
  color: var(--c-blue);
  font-size: 30px;
}

.experience hr {
  background-color: var(--c-blue);
  height: 5px;
}

.experience p {
  margin-top: 15px;
  text-align: left;
}

/* research */
.research {
  margin: 15px;
  text-align: center;
}

.research h2 {
  color: var(--c-blue);
  font-size: 30px;
}

.research hr {
  background-color: var(--c-blue);
  height: 5px;
}

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

.research-txt p,
.research-txt img {
  margin-top: 15px;
  margin-right: 10px;
}

.research-txt img{
  border-radius: 25px;
  width: 300px;
}

button {
  display: block;
  margin: 25px auto;
  background-color: var(--c-blue);
  border-radius: 25px;
}

a {
  display: inline-block;
  color: white;
  text-decoration: none;
  font-size: 20px;
  margin: 10px 25px;
}

/* footer area ==================================== */
footer {
  background-color: #222;
  /* height: 300px; */
}

.contact{
  color: white;
  text-align: center;
  padding-top: 10px;
  max-width: 1200px;
  margin: 0 auto;

  display: flex;
  justify-content: center;
  align-items: center;
}

.contact-txt{
  margin-right: 15px;
}

.wechat-img{
  text-align: center;
}

.wechat-img img{
  width: 150px;
}