.start_main {
  padding: 50px 0 170px;
}
.start_main strong.title {
  color: var(--title_color);
  font-size: 54px;
  font-weight: 700;
  line-height: 74px;
}
.start_main .main {
  margin-top: 40px;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}
.start_main .main .left {
  width: 20.15873%;
  padding-top: 3rem;
  display: none;
}
.start_main .main .left span {
  display: block;
  color: var(--title_color);
  font-size: 26px;
  font-weight: 700;
  line-height: 59px;
  margin-bottom: 42px;
}
.start_main .main .left .sytech_filter .widget {
  margin-bottom: 22px;
}
.start_main .main .left .sytech_filter .widget.active strong::after {
  transform: rotate(180deg);
}
.start_main .main .left .sytech_filter .widget strong {
  color: #3f3f3f;
  font-size: 24px;
  font-weight: 500;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.start_main .main .left .sytech_filter .widget strong::after {
  content: '';
  display: block;
  width: 1rem;
  height: 1rem;
  background: url(../img/select.svg) no-repeat center / contain;
  transition: all 0.3s;
}
.start_main .main .left .sytech_filter .widget ul {
  padding: 25px 0 22px;
  display: none;
}
.start_main .main .left .sytech_filter .widget ul li {
  color: #686868;
  font-size: 20px;
  font-weight: 500;
  position: relative;
  padding-left: 35px;
  cursor: pointer;
  margin-bottom: 20px;
  transition: all 0.3s;
}
.start_main .main .left .sytech_filter .widget ul li:last-child {
  margin-bottom: 0;
}
.start_main .main .left .sytech_filter .widget ul li::before {
  content: '';
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 2px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  transition: all 0.3s;
  background: url(../img/gou-w.svg) no-repeat center / 75%;
  box-sizing: border-box;
  position: absolute;
  left: 0;
  top: 8px;
}
.start_main .main .left .sytech_filter .widget ul li.active {
  color: var(--theme_color);
}
.start_main .main .left .sytech_filter .widget ul li.active::before {
  background-color: var(--theme_color);
  border-color: var(--theme_color);
}
.start_main .main .left .sytech_filter .widget ul li:hover {
  color: var(--theme_color);
}
.start_main .main .right {
  width: 71.42857%;
  padding-top: 42px;
  margin-left: auto;
  margin-right: auto;
}
.start_main .main .right h1 {
  color: var(--title_color);
  font-size: 36px;
  font-weight: 700;
  line-height: 59px;
}
.start_main .main .right ul {
  margin-top: 42px;
}
.start_main .main .right ul li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 3rem;
}
.start_main .main .right ul li:last-child {
  margin-bottom: 0;
}
.start_main .main .right ul li i {
  color: #3f3f3f;
  font-size: 24px;
  font-weight: 700;
  width: 7.777%;
  padding-right: 1rem;
  margin-top: 0.2rem;
}
.start_main .main .right ul li .info {
  flex: 1;
}
.start_main .main .right ul li .info:hover h2 {
  color: var(--theme_color);
  text-decoration: underline;
}
.start_main .main .right ul li .info h2 {
  color: var(--theme_color);
  font-size: 24px;
  font-weight: 700;
}
.start_main .main .right ul li .info p {
  color: #374151;
  font-size: 20px;
  line-height: 34px;
  margin-top: 10px;
}