/* purchase_course_nav导航栏 */
/* 必要：保证"课程详情"在web不显示 */
.mobile-nav-controls {
  display: none; 
}

.nav-container .nav-right{
  text-decoration: none;
  transition: color 0.2s ease-in-out, font-weight 0.2s ease-in-out;
}

.nav-container .nav-right a{
  padding: 5px 15px;
  background-color: #4285F4;
  border-radius: 1000px;
  color: rgb(255, 255, 255);
  font-size: 14px;
  font-weight: 400;
}

.nav-container .nav-right a:hover{
  background-color: #000000;
}

/* 响应式样式 */
@media (max-width: 768px) {
  .mobile-nav-controls {
    display: flex;
  }

  .course-details-link {
    font-size: 12px;
    padding: 5px 15px;
    background-color: #4285F4;
    color: #fff;
    border-radius: 1000px;
    margin-right: 20px; 
  }
  .nav-right{
    display: none;
  }
}

.nav-container.active {
  display: block;
}

/* banner背景图 */
.banner {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  width: 100%;
  height: 500px;
  text-align: center;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  position: relative;
  margin-bottom: 10px;
}




.banner_1 {
  background-image: url('../uploads/course/PEP/course/banner_bgi.png');
}

.banner_2 {
  background-image: url('../uploads/course/Master/banner.png');
}

.banner_3 {
  background-image: url('../uploads/common/consult/zixun_bg.png');
}

.banner_4 {
  background-image: url('../uploads/common/join/bg2.png');
}

.banner_5 {
  background-image: url('../uploads/course/more_course/index_more_course_bg.png');
}

.banner .main_content {
  width: 100%;
  max-width: 1200px;
  height: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: absolute;
  top: 48%;
  transform: translateY(-50%);
}

.banner .text {
  margin-bottom: 60px;
}

.banner .text h2{
  font-size: 64px;
}

.banner .text p{
  font-size: 28px;
}

@media (max-width: 1068px) {
  .banner, .banner_1, .banner_2 {
    height: 400px;
  }

  .banner .text h2{
    font-size: 48px;
  }
  .banner .text p{
    font-size: 21px;
  }
  .banner {
    margin-bottom: 10px;
  }
}

@media (max-width: 734px) {
  .banner, .banner_1, .banner_2 {
    height: 300px;
  }
  .banner .text h2{
    font-size: 32px;
  }
  .banner .text p{
    font-size: 16px;
  }
  .banner {
    margin-bottom: 5px;
  }
}

.banner_2 .text h2,
.banner_2 .text p,
.banner_3 .text h2,
.banner_3 .text p{
  color:#ffffff;
}

/* 报名按钮 */ 
.baoming {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.baoming a{
  text-decoration: none;
}

.signup-button {
  --primary-color: #4285F4;
  --secondary-color: #fff;
  --hover-color: #111;
  --arrow-width: 10px;
  --arrow-stroke: 2px;
  box-sizing: border-box;
  border: 0;
  border-radius: 20000px;
  color: var(--secondary-color);
  padding: 12px 18px 12px 24px; 
  background: var(--primary-color);
  display: flex;
  transition: 0.2s background;
  align-items: center;
  gap: 10px; 
  font-weight: 400;
  margin: 0 auto;
  font-size: 16px;
}

.signup-button .arrow-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
}

.signup-button .arrow {
  margin-top: 1px;
  width: var(--arrow-width);
  background: var(--primary-color);
  height: var(--arrow-stroke);
  position: relative;
  transition: 0.2s;
}

.signup-button .arrow::before {
  content: "";
  box-sizing: border-box;
  position: absolute;
  border: solid var(--secondary-color);
  border-width: 0 var(--arrow-stroke) var(--arrow-stroke) 0;
  display: inline-block;
  top: -3px;
  right: 3px;
  transition: 0.2s;
  padding: 3px;
  transform: rotate(-45deg);
}

.signup-button:hover {
  background-color: var(--hover-color);
}

.signup-button:hover .arrow {
  background: var(--secondary-color);
}

.signup-button:hover .arrow:before {
  right: 0;
}

@media (max-width: 1068px) {
  .signup-button {
    padding: 10px 14px 10px 20px; 
    font-size: 14px;
  }
}

@media (max-width: 734px) {
  .signup-button {
    padding: 10px 14px 10px 20px; 
    font-size: 14px;
  }
}

/* 底部白色 */
.footer {
    background-color: #fff;
}