body {
  font-size: 18px;
  min-width: 1400px;
}
.title-wrap {
  position: relative;
}
.title-wrap img {
  display: block;
}
.title-wrap span {
  font-size: 44px;
  position: relative;
}
.title-wrap span::after {
  content: '';
  display: inline-block;
  width: 48px;
  height: 2px;
  background-color: var(--second-color);
  vertical-align: middle;
  margin-left: 20px;
}
.title-wrap .title-tag {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  display: flex;
  align-items: center;
}
.title-wrap .title-tag span {
  width: 0.28rem;
  height: 0.1rem;
}
.title-wrap .title-tag span::after {
  display: none;
}
.title-wrap .title-tag .main-color {
  background-color: var(--color-primary);
}
.title-wrap .title-tag .sub-color {
  background-color: var(--second-color);
}
.title-wrap .title-tag .white {
  background-color: #fff;
}
.title-wrap.white span {
  color: #fff;
}
.banner {
  min-width: 1400px;
  position: relative;
}
.banner img {
  width: 100%;
  display: block;
}
.banner .child {
  position: absolute;
  left: 13.640625%;
}
.banner .child-1 {
  width: 44.90625%;
  top: 29.714286%;
}
.banner .child-2 {
  width: 14.58333333%;
  top: 67.142857%;
}
#part1 {
  padding-top: 0;
}
/* ========== 占位符色块：Part1 项目介绍 ========== */
.school-intro {
  background-image: url(../images/bg-overview.png);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center center;
  margin-bottom: 0.6rem;
  padding-top: 0.8rem;
}
.school-intro .cont {
  gap: 0.6rem;
}
.school-intro .sub-title {
  margin-bottom: 0.2rem;
}
.school-intro-content {
  width: 6.7rem;
}
#part1 {
  padding-bottom: 0;
}
#part1 .project-intro {
  background-image: url(../images/bg-overview2.png);
  background-repeat: no-repeat;
  background-position: center;
}
#part1 .project-intro-content {
  padding-left: 6rem;
  padding-bottom: 1.5rem;
  padding-top: 0.8rem;
}
#part1 .intro-desc {
  color: #fff;
}
#part1 .intro-tags {
  display: flex;
  gap: 0.4rem;
  color: #fff;
}
#part1 .intro-tags .tag-text strong {
  font-size: 0.24rem;
  display: inline-block;
  margin-right: 0.2rem;
}
/* ========== 占位符色块：Part2 课程设置 ========== */
#part2 {
  background-image: url(../images/bg-curriculum.png);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: top center;
  overflow: visible;
  padding-top: 0;
}
#part2 .basic-info {
  margin-top: -0.9rem;
  position: relative;
  z-index: 20;
}
#part2 .basic-info .info-grid {
  background-color: #fff;
  background-image: url(../images/bg-overview3.png);
  box-shadow: 0 0 0.1rem rgba(0, 0, 0, 0.1);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: right bottom;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  padding: 1rem 0.7rem;
  row-gap: 1rem;
}
#part2 .basic-info .info-grid .info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.2rem;
  line-height: 1.5;
}
#part2 .basic-info .info-grid .info-item:nth-child(1),
#part2 .basic-info .info-grid .info-item:nth-child(2),
#part2 .basic-info .info-grid .info-item:nth-child(3),
#part2 .basic-info .info-grid .info-item:nth-child(4) {
  grid-column: span 2;
}
#part2 .basic-info .info-grid .info-item:nth-child(5),
#part2 .basic-info .info-grid .info-item:nth-child(6) {
  grid-column: span 3;
}
#part2 .basic-info .info-grid .info-item:nth-child(7) {
  grid-column: span 2;
}
#part2 .basic-info .info-grid .info-item .info-icon {
  width: 0.48rem;
  height: 0.48rem;
  background-color: #f3f4f6;
  border-radius: 0.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
#part2 .basic-info .info-grid .info-item .info-label {
  font-size: 0.28rem;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.1rem;
}
#part2 .basic-info .download-btn {
  margin-top: 0.4rem;
}
#part2 .basic-info .download-btn img {
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.45rem;
  box-shadow: 0 0 0.1rem rgba(0, 0, 0, 0.1);
  border-radius: 50%;
}
#part2 .basic-info .download-btn a {
  background-color: #dbe3eb;
  width: 2.6rem;
  height: 0.6rem;
  border-radius: 0.3rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  padding-left: 0.05rem;
}
#part2 .basic-info .download-btn span {
  font-size: 0.2rem;
  color: var(--color-primary);
  font-weight: bold;
}
#part2 .curriculum-title {
  margin-top: 1rem;
}
#part2 .curriculum-overview {
  width: 8.5rem;
  margin: 0 auto;
}
#part2 .curriculum-overview .curriculum-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 0.4rem;
}
#part2 .curriculum-overview .curriculum-stats .stat-item {
  width: 50%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  height: 1.75rem;
  padding-left: 1.1rem;
  gap: 0.2rem;
}
#part2 .curriculum-overview .curriculum-stats .stat-item:nth-child(1),
#part2 .curriculum-overview .curriculum-stats .stat-item:nth-child(2) {
  border-bottom: 1px solid #666;
}
#part2 .curriculum-overview .curriculum-stats .stat-item:nth-child(1),
#part2 .curriculum-overview .curriculum-stats .stat-item:nth-child(3) {
  border-right: 1px solid #666;
}
#part2 .curriculum-overview .curriculum-stats .stat-item .num {
  font-size: 0.6rem;
  font-weight: bold;
  color: var(--color-primary);
  line-height: 1;
}
#part2 .curriculum-overview .curriculum-stats .stat-item .label {
  line-height: 1.5;
}
#part2 .core-courses {
  display: flex;
}
#part2 .core-courses .core-course-item {
  width: 2.6rem;
  position: relative;
  transition: width 0.3s ease-in-out;
}
#part2 .core-courses .core-course-item .cover {
  overflow: hidden;
}
#part2 .core-courses .core-course-item .cover img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  display: block;
  max-width: unset;
  width: auto;
}
#part2 .core-courses .core-course-item .course-content {
  display: none;
}
#part2 .core-courses .core-course-item.active {
  width: 8.8rem;
}
#part2 .core-courses .core-course-item.active .info {
  background-image: unset;
  background-color: rgba(0, 73, 149, 0.7);
}
#part2 .core-courses .core-course-item.active .course-content {
  display: block;
  margin-top: 0.5em;
}
#part2 .core-courses .core-course-item.active .course-content p {
  color: #fff;
  line-height: 1.65;
  margin: 0;
}
#part2 .core-courses .core-course-item.active .course-content p.course-highlight {
  color: #e83828;
  font-size: 0.22rem;
  line-height: 1.5;
  margin-top: 0.1rem;
}
#part2 .core-courses .core-course-item.active .course-content.core-course-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 0.5rem;
  align-items: flex-start;
}
#part2 .core-courses .core-course-item .info {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  padding-left: 0.5rem;
  padding-bottom: 0.5rem;
  background-image: linear-gradient(to top, var(--color-primary), transparent 30%);
}
#part2 .core-courses .core-course-item .info .course-title {
  font-size: 0.36rem;
  color: #fff;
  line-height: 1;
  margin-bottom: 0.3rem;
}
/* ========== 占位符色块：Part3 师资力量 ========== */
.part3-faculty-overview .faculty-stats {
  display: grid;
  grid-template-columns: 4.8rem 1fr 8rem;
}
.part3-faculty-overview .faculty-stats .stat-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0.4rem;
  position: relative;
  padding: 0.4rem 0.3rem;
}
.part3-faculty-overview .faculty-stats .stat-item.multi-line {
  flex-direction: row;
  gap: 0;
  padding: 0;
}
.part3-faculty-overview .faculty-stats .stat-item .stat-item-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0.4rem;
  position: relative;
  padding: 0.4rem 0.3rem;
}
.part3-faculty-overview .faculty-stats .stat-item .num {
  font-size: 0.7rem;
  font-weight: bold;
  line-height: 1;
}
.part3-faculty-overview .faculty-stats .stat-item .stat-icon {
  width: 1.2rem;
  height: 1.2rem;
}
.part3-faculty-overview .faculty-stats .stat-item .stat-icon {
  position: absolute;
  right: 0.2rem;
  top: 0.2rem;
  width: 0.3rem;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(1) {
  background-color: #f3f4f6;
  grid-column: span 2;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(1) .num {
  color: var(--color-primary);
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(2) .stat-item-inner:nth-child(1) {
  background-color: #4a5565;
  flex: 4;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(2) .stat-item-inner:nth-child(1) .num,
.part3-faculty-overview .faculty-stats .stat-item:nth-child(2) .stat-item-inner:nth-child(1) .label {
  color: #fff;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(2) .stat-item-inner:nth-child(2) {
  flex: 5;
  background-color: #4ea8ce;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(2) .stat-item-inner:nth-child(2) .num,
.part3-faculty-overview .faculty-stats .stat-item:nth-child(2) .stat-item-inner:nth-child(2) .label {
  color: #fff;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(3) {
  grid-row: span 3;
  background-color: #fecd4c;
  justify-content: flex-end;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(3) .num,
.part3-faculty-overview .faculty-stats .stat-item:nth-child(3) .label {
  color: #fff;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(4) {
  grid-column: span 2;
  background-color: #e5e7eb;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(4) .num {
  color: var(--color-primary);
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(5) {
  grid-row: span 2;
  background-color: #f3f4f6;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(6) {
  align-items: flex-end;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(7) .stat-item-inner:nth-child(1) {
  flex: 2;
  background-color: var(--color-primary);
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(7) .stat-item-inner:nth-child(1) .num {
  color: #fecd4c;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(7) .stat-item-inner:nth-child(1) .label {
  color: #fff;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(7) .stat-item-inner:nth-child(2) {
  flex: 3;
  background-color: #f3f4f6;
}
.part3-faculty-overview .faculty-stats .stat-item:nth-child(7) .stat-item-inner:nth-child(2) .num {
  color: var(--color-primary);
}
.part3-core-professors .professor-list {
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
  margin-top: 0.8rem;
}
.part3-core-professors .professor-list .professor-item {
  width: 1.6rem;
  overflow: hidden;
  background-color: #71b6fb;
  padding-top: 2rem;
  transition: width 0.3s ease-in-out;
  position: relative;
}
.part3-core-professors .professor-list .professor-item .professor-img {
  transform: translateX(-50%);
}
.part3-core-professors .professor-list .professor-item .professor-img img {
  max-width: unset;
  display: block;
}
.part3-core-professors .professor-list .professor-item .professor-info,
.part3-core-professors .professor-list .professor-item .research {
  display: none;
}
.part3-core-professors .professor-list .professor-item.active {
  width: 5.2rem;
}
.part3-core-professors .professor-list .professor-item.active .professor-img {
  transform: translateX(0);
}
.part3-core-professors .professor-list .professor-item.active .professor-info,
.part3-core-professors .professor-list .professor-item.active .research {
  display: block;
  position: absolute;
}
.part3-core-professors .professor-list .professor-item.active .professor-info {
  right: 0.5rem;
  top: 2rem;
  writing-mode: vertical-lr;
}
.part3-core-professors .professor-list .professor-item.active .professor-info .professor-name {
  color: #fff;
  font-size: 0.24rem;
}
.part3-core-professors .professor-list .professor-item.active .professor-info .professor-title {
  color: #fff;
  padding-top: 1em;
}
.part3-core-professors .professor-list .professor-item.active .research {
  top: 0.3rem;
  left: 0.4rem;
}
.part3-core-professors .professor-list .professor-item.active .research .research-title {
  background-color: #fff;
  color: var(--color-primary);
  display: inline-block;
  padding: 0 0.15rem;
  line-height: 0.36rem;
  text-align: center;
  border-radius: 0.1rem 0;
  margin-bottom: 0.1rem;
  font-weight: bold;
}
.part3-core-professors .professor-list .professor-item.active .research .research-content {
  padding-left: 0.15rem;
}
.part3-core-professors .professor-list .professor-item.active .research .research-content p {
  line-height: 1.5;
  margin: 0;
}
/* ========== 占位符色块：Part6 项目特色 ========== */
.sub-title {
  width: 2.6rem;
  line-height: 0.56rem;
  font-size: 0.32rem;
  background-color: #fecd4c;
  background: linear-gradient(90deg, #f2c533 0%, #f6d778 45%, transparent 100%);
  color: #ffffff;
  padding-left: 0.3rem;
  margin-bottom: 0.5rem;
}
.sub-title3 {
  font-size: 0.24rem;
  width: 2.6rem;
  line-height: 1;
  margin-bottom: 0.5rem;
  position: relative;
}
.sub-title3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.07rem;
  width: 4em;
  height: 0.04rem;
  background: linear-gradient(90deg, #f2c533 0%, transparent 100%);
  display: block;
  z-index: -1;
}
/* ========== Footer 底部样式（zibs.zju.edu.cn 原版结构） ========== */