/* CSS Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 清除默认样式 */
div, input, p, dl, dd, dt, ul, ol, li, h1, h2, h3, h4, h5, h6 {
  margin: 0;
  padding: 0;
}

ul, ol {
  list-style-type: none;
}

img {
  display: block;
  border: none;
  max-width: 100%;
  height: auto;
  vertical-align: top; /* 消除图片底部间隙 */
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

a {
  text-decoration: none;
  display: block;
}

a:hover {
  text-decoration: none;
}

/* 主容器样式 */
.main_container {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  background: #fff;
  overflow: hidden;
  font-size: 0;
  line-height: 0;
}

.main_container > .image_section,
.main_container > .expandable_section {
  font-size: 14px;
  line-height: normal;
}

.main_container > * {
  display: block;
  margin: 0;
  padding: 0;
  border: 0;
  vertical-align: top;
  line-height: 0;
}

/* 图片区域通用样式 */
.image_section {
  width: 100%;
  position: relative;
  display: block;
  overflow: hidden;
  line-height: 0; /* 消除行高产生的间隙 */
  font-size: 0; /* 消除字体大小产生的间隙 */
}

.image_section img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: top;
  border: none;
  outline: none;
}

/* 可点击区域样式 */
.image_section.clickable {
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.image_section.clickable:hover {
  opacity: 0.95;
}

.image_section.clickable:active {
  opacity: 0.9;
}

/* 图片尺寸比例 */
.image1 {
  aspect-ratio: 1000/810;
}

.image2 {
  aspect-ratio: 1000/824;
}

.image3 {
  aspect-ratio: 1000/2096;
}

.image4 {
  aspect-ratio: 1000/466;
}

.image5 {
  aspect-ratio: 1000/1209;
}

/* 展开区域样式 */
.expandable_section {
  width: 100%;
  display: none;
  overflow: hidden;
  line-height: 0;
  font-size: 0;
  transition: all 0.3s ease;
}

.expandable_section.show {
  display: block;
}

.expandable_section img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: top;
}

#expand2 {
  aspect-ratio: 1000/1898;
}

#expand3-1, #expand3-2, #expand3-3 {
  aspect-ratio: 1000/668;
}

/* 透明按钮容器 */
.buttons_container {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 300px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  pointer-events: none;
}

.transparent_button {
  width: 333px;
  height: 300px;
  background: transparent;
  cursor: pointer;
  pointer-events: auto;
  transition: background-color 0.3s ease;
  border: none;
  outline: none;
}

.transparent_button:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.transparent_button:active {
  background-color: rgba(255, 255, 255, 0.2);
}

/* 箭头容器 */
.arrows_container {
  position: absolute;
  bottom: 30px;
  left: 160px;
  right: 160px;
  height: auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  pointer-events: none;
  z-index: 10;
}

.arrows_container img {
  width: auto;
  height: auto;
  max-width: 100px;
  transition: transform 0.3s ease;
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

.expandable_section.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

.expandable_section.fade-out {
  animation: fadeOut 0.3s ease forwards;
}

/* 加载状态 */
.image_section.loading {
  background: #f5f5f5;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image_section.loading::before {
  content: "加载中...";
  color: #999;
  font-size: 16px;
}

/* 表单相关样式 */
.home_container4 {
  margin: 0px auto;
  width: 1000px;
}

.home_container4b {
  width: 100%;
  height: 3413px;
  background: #d8d8d8 url(../images/form1_bg.jpg) no-repeat center top;
  background-size: 100% auto;
}

.container_details1 {
  width: 100%;
}

/* 输入框样式 */
.container_details1 .input_nr {
  float: left;
  margin: 1180px 0 0 0;
  width: 1000px;
}

.container_details1 .input_auto {
  display: flex;
  margin: 0 auto;
  width: 750px;
  justify-content: space-between;
  flex-wrap: wrap;
}

.container_details1 .input_list_1 {
  display: flex;
  box-sizing: border-box;
  margin: 12px 0;
  width: 360px;
  border: #007ec6 solid 1px;
  border-radius: 10px;
  flex-wrap: wrap;
  align-items: center;
  background: #fff;
  height: 57px;
}

.container_details1 .input_list_1.width100 {
  width: 100%;
}

.container_details1 .input_list_1 img {
  margin: 0px 10px;
  height: 22px;
  flex: 0 0 auto;
}

.container_details1 .input_list_1 strong {
  height: 57px;
  color: #007ec6;
  font-weight: bold;
  font-size: 24px;
  line-height: 57px;
  flex: 0 0 auto;
}

.container_details1 .input_list_1 input {
  box-sizing: border-box;
  padding: 0 20px 0 15px;
  width: 100px;
  height: 57px;
  outline: none;
  border: none;
  background: none;
  font-size: 24px;
  font-weight: bold;
  line-height: 57px;
  flex: 1 1 100px;
  color: #007ec6;
}

.container_details1 .input_list_1 textarea {
  box-sizing: border-box;
  padding: 0 20px 0 15px;
  height: 110px;
  outline: none;
  border: none;
  background: none;
  font-size: 16px;
  line-height: 26px;
  flex: 1 1 100%;
}

/* 单选框样式 */
.container_details1 .radio1_nr {
  width: 1000px;
  float: left;
  margin: 0px 0 0 0;
}

.container_details1 .radio1_auto {
  width: 750px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.container_details1 .radio1_bt {
  flex: 0 0 100%;
  font-size: 24px;
  color: #007ec6;
  font-weight: bold;
  line-height: 47px;
  padding: 10px 0 0 0px;
  box-sizing: border-box;
}

.options_container {
  display: flex;
  justify-content: space-between;
  width: 100%;
  margin: 12px 0;
}

.container_details1 .radio1_1 {
  width: 280px;
  height: 39px;
  line-height: 39px;
  box-sizing: border-box;
  margin: 10px 0;
  font-size: 24px;
  font-weight: bold;
}

.container_details1 .radio1_1 a {
  display: block;
  background: url(../images/details_07.png) no-repeat center left;
  background-size: 20px 20px;
  color: #575757;
  text-indent: 35px;
  font-weight: bold;
  font-size: 24px;
}

.container_details1 .radio1_1 a.hover {
  display: block;
  background: url(../images/details_06.png) no-repeat center left;
  background-size: 20px 20px;
}

/* 协议复选框样式 */
.container_details1 .radio3_nr {
  float: left;
  margin: 50px 0 0 0;
  width: 100%;
}

.container_details1 .radio3_auto {
  display: flex;
  margin: 0 auto;
  width: 200px;
  justify-content: space-between;
  flex-wrap: wrap;
}

.container_details1 .radio3_list_1 {
  box-sizing: border-box;
  margin: 2px 0 2px;
  width: 100%;
  height: 30px;
  font-weight: bold;
  font-size: 15px;
  line-height: 30px;
}

.container_details1 .radio3_list_1a {
  float: left;
  box-sizing: border-box;
  width: auto;
  height: 50px;
  line-height: 50px;
}

.container_details1 .radio3_list_1a a {
  display: block;
  overflow: hidden;
  background: url(../images/details_09.png) no-repeat center left;
  background-size: 18px 18px;
  color: #1e72c8;
  text-indent: 30px;
}

.container_details1 .radio3_list_1a a.hover {
  display: block;
  background: url(../images/details_08.png) no-repeat center left;
  background-size: 18px 18px;
}

.container_details1 .radio3_list_1b {
  float: left;
  box-sizing: border-box;
  width: auto;
  height: 50px;
  line-height: 50px;
}

.container_details1 .radio3_list_1b a {
  display: block;
  color: #ff7e00;
  text-decoration: underline;
}

.container_details1 .radio3_list_1b a.hover {
  color: #e84747;
}

/* 提交按钮样式 */
.container_details1 .button1 {
  float: left;
  margin: 20px 0 0 0;
  width: 1000px;
  min-width: 560px;
}

.container_details1 .button1_auto {
  display: flex;
  margin: 0 auto;
  width: 197px;
  justify-content: space-between;
  flex-wrap: wrap;
}

.container_details1 .button1_1 {
  box-sizing: border-box;
  margin: 2px 0 2px;
  width: 100%;
  height: 70px;
  font-weight: bold;
}

.container_details1 .button1_1 button {
  width: 100%;
  height: 70px;
  outline: none;
  border: none;
  background: url(../images/details_12.png) no-repeat;
  background-size: auto 70px;
  font-size: 0px;
  cursor: pointer;
}

.form_return_btn {
  width: 100%;
  text-align: center;
  position: relative;
  margin-top: 260px;
}

.form_return_link {
  display: inline-block;
  width: 200px;
  height: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.form_return_link img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.form_return_link:hover {
  opacity: 0.8;
}

/* 弹出层样式 */
.popup_bg {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  display: flex;
  width: 100%;
  height: 100vh;
  background: rgb(0, 0, 0, 0.6);
  justify-content: center;
  align-items: center;
}

.popup1 {
  margin: 0 auto;
  width: 90%;
  height: 580px;
  max-width: 1000px;
  border-radius: 20px;
  background: #fff;
}

.popup1_t {
  position: relative;
  margin: 20px 0;
  width: 100%;
  height: 40px;
  color: #1e72c8;
  text-align: center;
  font-weight: bold;
  font-size: 24px;
  line-height: 40px;
}

.popup1_tr {
  position: absolute;
  top: 3px;
  right: 20px;
  z-index: 10;
  width: 34px;
  height: 34px;
}

.popup1_tr img {
  margin: 5px;
  width: 24px;
  height: 24px;
}

.popup1_c {
  overflow-y: scroll;
  box-sizing: border-box;
  padding: 0px 50px;
  width: 100%;
  height: 400px;
  border-radius: 20px;
  background: #fff;
  color: #323232;
  font-size: 15px;
  line-height: 28px;
}

.popup1_b {
  box-sizing: border-box;
  margin: 0 auto;
  width: 300px;
  height: 53px;
  font-weight: bold;
}

.popup1_b button {
  float: left;
  margin: 20px 0 0 0;
  width: 300px;
  height: 53px;
  outline: none;
  border: none;
  background: url(../images/details_15.png) no-repeat;
  background-size: 300px 53px;
  font-size: 0px;
  cursor: pointer;
}

.popup2 {
  position: relative;
  width: 617px;
  height: 356px;
  border-radius: 10px;
  background: url(../images/details_16.png) no-repeat;
  background-size: 617px 356px;
}

.popup2_tr2 {
  position: absolute;
  top: 280px;
  left: 165px;
  z-index: 10;
  width: 110px;
  height: 42px;
}

.popup2_tr2 img {
  width: 110px;
  height: 42px;
}

.popup2_tr3 {
  position: absolute;
  top: 280px;
  left: 340px;
  z-index: 10;
  width: 110px;
  height: 42px;
}

.popup2_tr3 img {
  width: 110px;
  height: 42px;
}

/* 响应式设计 */
@media screen and (max-width: 1024px) {
  .arrows_container {
    left: 150px;
    right: 150px;
    bottom: 40px;
  }
  
  .arrows_container img {
    max-width: 80px;
  }
}

@media screen and (max-width: 768px) {
  .arrows_container {
    left: 100px;
    right: 100px;
    bottom: 20px;
  }
  
  .arrows_container img {
    max-width: 60px;
  }
}

@media screen and (max-width: 480px) {
  .arrows_container {
    left: 50px;
    right: 50px;
    bottom: 20px;
  }
  
  .arrows_container img {
    max-width: 50px;
  }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
  .image_section.clickable:hover {
    opacity: 1;
  }
  
  .transparent_button:hover {
    background-color: transparent;
  }
  
  .image_section.clickable:active {
    opacity: 0.8;
  }
  
  .transparent_button:active {
    background-color: rgba(255, 255, 255, 0.3);
  }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .image_section img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* iOS Safari 特殊处理 */
@supports (-webkit-touch-callout: none) {
  .image_section img {
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
  }
}

.question_text_compact {
  float: left;
  color: #007ec6;
  font-size: 22px;
  font-weight: bold;
  line-height: 28px !important;  /* 更紧凑的行距 */
  padding: 8px 0;  /* 同时减少上下padding */
  width: 100%;
}