.avatar-swap{
  position:relative;
  width:150px; height:150px;
  margin:0 auto;
  border-radius:50%;
  overflow:hidden;
}
.avatar-swap img{
  position:absolute; top:0; left:0;
  width:100%; height:100%;
  object-fit:cover;
  transition:opacity .4s ease;
}
.avatar-base{ opacity:1; }
.avatar-hover{ opacity:0; }
.avatar-swap:hover .avatar-base{ opacity:0; }
.avatar-swap:hover .avatar-hover{ opacity:1; }

.education-item{
  margin-bottom: 1.5rem;
  border-left: 4px solid #52adc8;
  padding-left: 1rem;
}
.institution{font-weight: bold;}
.date{color: #666; font-size: 0.9em;}
.edu-row{
  display: flex;
  align-items: center;
  margin-bottom: 2rem;
}
.edu-logo{
  flex: 0 0 80px;        /* logo 固定宽度 */
  margin-right: 1.2rem;
}
.edu-logo img{
  width: 100%;
  height: auto;
  max-width: 80px; 
  border-radius: 4px;    /* 想要圆角可开 */
}
.edu-text{ flex: 1; }
@media (max-width: 600px){
  .edu-row{ flex-direction: column; align-items: flex-start; }
  .edu-logo{ margin: 0 0 0.5rem 0; width: 60px; }
}
.edu-exchange{ margin-left: 1rem; border-left: 3px solid #ffd700; padding-left: 1rem; }

/* ---- 单条 Project 卡片 ---- */
.achieve-row{
  display: flex;
  align-items: flex-start;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #e5e5e5;   /* 分割线 */
}
.achieve-row:last-child{ border-bottom: none; }   /* 最后一条去掉线 */

.achieve-text h4{          /* title 最大 + 加粗 */
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 .5rem 0;
}

.achieve-text .authors,
.achieve-text .advisor{    /* author & advisor 同尺寸 */
  font-size: 1rem;
  margin: .3rem 0;
  color: #444;
}

.achieve-text .desc,
.achieve-text .outcome{    /* description 小字 */
  font-size: .9rem;
  line-height: 1.6;
  margin: .6rem 0 0 0;
  color: #555;
}

.achieve-text .year{       /* 年份保持原样 */
  font-size: .9rem;
  color: #777;
  margin: .2rem 0;
}

/* 无 logo 时文字占满 */
.achieve-text.no-logo{ flex: 1 1 100%; }

@media (max-width: 600px){
  .achieve-row{ flex-direction: column; }
  .achieve-logo{ margin: 0 0 1rem 0; width: 60px; }
}
#project,               /* Projects & Papers */
#prize {                /* Honors & Awards  */
  font-size: 1.4rem;      /* 想再大就改 2.2rem、2.5rem... */
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 1.2rem;
  color: #003366;          /* 想换颜色这里调 */
}