/* reset */
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
form,
fieldset,
input,
button,
textarea,
p,
blockquote,
th,
td {
  padding: 0;
  margin: 0;
}

img {
  border: 0;
  vertical-align: middle;
}

ol,
ul {
  list-style: none;
}

a {
  color: #333;
  text-decoration: none;
}

/* 基础布局 - 活动页最小宽度 1200px，最大宽度 1920px */
html,
body {
  font:
    14px/1.5 "Microsoft YaHei",
    "PingFang SC",
    Arial,
    "Helvetica Neue",
    Helvetica,
    sans-serif;
  color: #333;
  background: #fff;
  min-width: 1200px;
  max-width: 1920px;
  margin: 0 auto;
}

.main {
  min-width: 1200px;
}

/* 通用内容模块 - 与导航、Banner 保持相同风格 */
.section {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  padding: 80px 0 0 0;
  background: #fff;
  box-sizing: border-box;
}

.section-container {
  width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a1a;
  margin: 0 0 40px;
  text-align: center;
}

.section-title--accent {
  color: #8c3315;
}

.section-desc {
  font-size: 18px;
  color: #666;
  line-height: 30px;
  margin: 0 0 20px;
}

/* 关于研修班模块 */
.about-title {
  font-size: 38px;
  line-height: 38px;
  font-weight: 600;
  color: #000;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 40px;
}

.about-title::before,
.about-title::after {
  content: "";
  flex: 1;
  max-width: 127px;
  height: 1px;
  background: #d2d2d2;
}

.about-title::before {
  margin-right: 30px;
}

.about-title::after {
  margin-left: 30px;
}

.about-content {
  display: flex;
  align-items: center;
}

.about-left {
  flex-shrink: 0;
  margin-right: 65px;
}

.about-img-wrap {
  position: relative;
  width: 485px;
}

.about-img {
  display: block;
  width: 100%;
  height: auto;
  position: relative;
  z-index: 2;
}

.about-img-bg {
  position: absolute;
  background-repeat: no-repeat;
  background-size: contain;
  pointer-events: none;
  z-index: 1;
}

.about-img-bg--left {
  top: -20px;
  left: -44px;
  width: 167px;
  height: 72px;
  background-image: url("../images/about/about-left-bg.png");
  background-position: left top;
}

.about-img-bg--right {
  bottom: -20px;
  right: -44px;
  width: 167px;
  height: 72px;
  background-image: url("../images/about/about-right-bg.png");
  background-position: right bottom;
}

.about-right {
  width: 543px;
}

.about-desc {
  font-size: 18px;
  color: #000;
  line-height: 30px;
  text-indent: 2em;
  font-family: "PingFang SC";
}

.about-highlight {
  color: #8c3315;
  font-weight: 600;
  font-style: normal;
}

/* 演讲嘉宾模块 */
.speakers-title {
  font-size: 38px;
  line-height: 38px;
  font-weight: 600;
  color: #000;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 50px;
}

.speakers-title::before,
.speakers-title::after {
  content: "";
  flex: 1;
  max-width: 127px;
  height: 1px;
  background: #d2d2d2;
}

.speakers-title::before {
  margin-right: 30px;
}

.speakers-title::after {
  margin-left: 30px;
}

.speakers-list {
  display: block;
}

.speaker-item {
  position: relative;
  display: flex;
  width: 1200px;
  height: 279px;
  margin-bottom: 14px;
  box-sizing: border-box;
}

.speaker-item:last-child {
  margin-bottom: 0;
}

/* 引号装饰图，相对于 speaker-item 定位 */
.speaker-yinhao {
  position: absolute;
  pointer-events: none;
  z-index: 10;
}

.speaker-yinhao-left {
  bottom: 0;
  left: 0;
  width: 31px;
  height: auto;
}

.speaker-yinhao-right {
  top: 76px;
  right: 36px;
  width: 58px;
  height: 45px;
}

.speaker-avatar-wrap {
  position: relative;
  flex-shrink: 0;
  width: 228px;
  height: 279px;
  margin-right: 24px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

/* avatar-bg 位于头像下层，底边与头像底边重合 */
.speaker-avatar-bg {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 228px;
  height: 228px;
  object-fit: contain;
  object-position: bottom;
  z-index: 1;
}

.speaker-avatar {
  position: relative;
  width: 228px;
  height: 279px;
  /* 底边为半圆，与 228px 宽的圆形背景底边重合，半径=宽度一半=114px */
  border-radius: 0 0 114px 114px;
  object-fit: cover;
  z-index: 1;
}

/* 相对于 speaker-item 定位，可调整 top/left 修改位置 */
.speaker-info {
  color: #000;
  font-family: "PingFang SC";
  position: absolute;
  padding-left: 238px;
  top: 42px;
  font-size: 24px;
  line-height: 30px;
  font-weight: 600;
}

/* 相对于 speaker-item 定位，可调整 top/left 修改位置 */
.speaker-content-box {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 1088px;
  height: 220px;
  background: #fff2e6;
  padding: 32px 36px 32px 16px;
  box-sizing: border-box;
  padding-left: 162px;
  border-radius: 0 18px 18px 0;
}

.speaker-topic {
  color: #000;
  font-family: "PingFang SC";
  font-size: 24px;
  line-height: 30px;
  font-weight: 600;
  margin-bottom: 32px;
  white-space: nowrap;
}

.speaker-name-row {
  font-size: 20px;
  margin-bottom: 20px;
  line-height: 22px;
}

.speaker-name-row .speaker-name {
  font-style: normal;
  font-weight: 600;
  line-height: normal;
  color: #8c3315;
  margin-right: 10px;
}

.speaker-name-row .speaker-affiliation {
  color: #8e8e8e;
}

.speaker-desc-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.speaker-desc {
  flex-shrink: 0;
  width: 545px;
  margin: 0;
  color: #000;
  text-align: justify;
  font-family: "PingFang SC";
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 26px;
}

.speaker-replay-btn {
  flex-shrink: 0;
  display: flex;
  width: 270px;
  height: 54px;
  box-sizing: border-box;
  justify-content: center;
  align-items: center;
  background: #fff;
  border: 1px solid transparent;
  border-radius: 54px;
  color: #8c3315;
  font-size: 16px;
  font-weight: 500;
  line-height: 22px;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background 0.2s,
    border-color 0.2s,
    box-shadow 0.2s;
}

.speaker-replay-btn:hover {
  border-color: #ffd1c0;
  box-shadow: 0 0 23.5px 0 #fadfd5;
}

/* 研修亮点 - 深棕红背景区，叠加背景图，宽度变化时两端裁剪不缩放 */
.section-highlights {
  background: #923f24 url("../images/highlights/yxld-bg.png") no-repeat center
    center;
  background-size: 1920px auto;
  padding: 60px 0 60px 0;
  margin-top: 80px;
}

.highlights-title {
  font-size: 38px;
  line-height: 38px;
  font-weight: 600;
  color: #fff;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 50px;
}

.highlights-title::before,
.highlights-title::after {
  content: "";
  flex: 1;
  max-width: 127px;
  height: 1px;
  background: rgba(255, 255, 255, 0.6);
}

.highlights-title::before {
  margin-right: 30px;
}

.highlights-title::after {
  margin-left: 30px;
}

.highlights-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.highlight-item {
  width: 592px;
  height: 204px;
  box-sizing: border-box;
  margin-bottom: 16px;
  border-radius: 24px;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  box-shadow: 0 4px 5.7px 0 rgba(80, 12, 0, 0.55);
}

.highlight-item:nth-last-child(-n + 2) {
  margin-bottom: 0;
}

.highlight-card {
  display: flex;
  align-items: center;
  padding-left: 266px;
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  border-radius: 24px;
}

.highlight-content {
  position: relative;
}

.highlight-title {
  font-size: 22px;
  line-height: 20px;
  font-weight: 600;
  color: #000;
  margin-bottom: 15px;
  position: relative;
  z-index: 1;
}

.highlight-desc {
  color: #5d5d5d;
  font-family: "PingFang SC";
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 26px;
}

/* 研修收获 - 背景图 */
.section-gains {
  background: #fff2e6 url("../images/gains/gain-bg.png") no-repeat center center;
  background-size: cover;
  padding: 80px 0 80px;
}

.gains-title {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  line-height: 38px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0 0 24px;
  padding-bottom: 24px;
}

.gains-title::before,
.gains-title::after {
  content: "";
  flex: 1;
  max-width: 127px;
  height: 1px;
  background: #d2d2d2;
}

.gains-title::before {
  margin-right: 30px;
}

.gains-title::after {
  margin-left: 30px;
}

.gains-list {
  display: flex;
  flex-direction: column;
}

.gain-item {
  display: flex;
  align-items: center;
  width: 746px;
  height: 80px;
  border-radius: 60px;
  border: 2px solid #fff;
  background: linear-gradient(
    90deg,
    #ffddc2 4.19%,
    rgba(255, 223, 196, 0.19) 86.53%
  );
  margin-bottom: 10px;
}

/* 奇数项：渐变色方向相反，icon 在右侧，距左 484px */
.gain-item:nth-child(odd) {
  flex-direction: row-reverse;
  margin-left: 80px;
  background: linear-gradient(
    270deg,
    #ffddc2 4.19%,
    rgba(255, 223, 196, 0.19) 86.53%
  );
}

/* 偶数项：默认渐变，icon 在左侧，距左 690px */
.gain-item:nth-child(even) {
  flex-direction: row;
  padding-left: 8px;
  margin-left: 330px;
}

.gain-item:last-child {
  margin-bottom: 0;
}

.gain-icon-wrap {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  /* background: rgba(255, 180, 130, 0.4); */
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 奇数项 icon 在右，改用 margin-left 与文字间距 */
.gain-item:nth-child(odd) .gain-icon-wrap {
  margin-right: 0;
  padding-right: 8px;
}

.gain-icon {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.gain-icon-svg {
  pointer-events: none;
}

.gain-icon-placeholder {
  background: rgba(255, 180, 130, 0.5);
}

.gain-text {
  flex: 1;
  display: flex;
  align-items: center;
  font-size: 18px;
  color: #1a1a1a;
  line-height: 28px;
  padding-left: 126px;
}

.gain-title {
  display: inline-flex;
  align-items: center;
  color: #8c3415;
  text-align: center;
  font-family: "PingFang SC";
  font-size: 22px;
  font-style: normal;
  font-weight: 600;
  line-height: 38px;
  flex-shrink: 0;
}

.gain-title::before {
  content: "";
  width: 9px;
  height: 9px;
  margin-right: 12px;
  background: url("../images/gains/pot.svg") no-repeat center center;
  background-size: contain;
}

.gain-title-desc {
  color: #000;
  font-family: "PingFang SC";
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: 28px;
  margin-left: 8px;
}

/* 研修需知 */
.section-notice {
  background: #fff;
  padding: 80px 0 80px;
}

.notice-title {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  line-height: 38px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0 0 40px;
}

.notice-title::before,
.notice-title::after {
  content: "";
  flex: 1;
  max-width: 127px;
  height: 1px;
  background: #d2d2d2;
}

.notice-title::before {
  margin-right: 30px;
}

.notice-title::after {
  margin-left: 30px;
}

.notice-content {
  display: flex;
  border: 1px solid #e7bb9e;
  background: #fffaf5;
  overflow: hidden;
  padding: 33px 37px;
  box-sizing: border-box;
}

.notice-item {
  flex: 1;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.notice-label {
  display: flex;
  align-items: center;
  font-size: 20px;
  line-height: 38px;
  color: #000;
  margin: 0 0 16px;
}

.notice-label-title {
  font-weight: 600;
}

.notice-icon {
  width: 20px;
  height: 20px;
  margin-right: 12px;
  flex-shrink: 0;
  vertical-align: middle;
}

.notice-img-wrap {
  width: 100%;
  height: 357px;
  overflow: hidden;
}

.notice-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 尾部 */
.footer {
  background: #fdf5ed url("../images/footer/footer-bg.png") no-repeat center
    center;
  background-size: cover;
  padding: 60px 0 80px;
}

.footer-container {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
  padding: 0 250px;
}

.footer-left {
  flex: 1;
}

.footer-slogan {
  color: #000;
  font-family: "PingFang SC";
  font-size: 20px;
  font-style: normal;
  font-weight: 600;
  line-height: 30px;
  margin-bottom: 22px;
}

.footer-contacts {
  display: flex;
  flex-direction: column;
}

.footer-contact-item {
  display: flex;
  flex-direction: column;
  margin-bottom: 18px;
}

.footer-contact-item:last-child {
  margin-bottom: 0;
}

.footer-contact-label {
  color: #8c3315;
  font-size: 18px;
  font-style: normal;
  font-weight: 600;
  line-height: 24px;
  margin-bottom: 4px;
}

.footer-contact-detail {
  color: #000;
  font-family: "PingFang SC";
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 24px;
}

.footer-right {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-qr-wrap {
  width: 150px;
  height: 150px;
  margin-bottom: 12px;
  overflow: hidden;
  background-color: #fff;
  padding: 8px;
  border: 1px solid #d3917d;
  box-sizing: border-box;
}

.footer-qrcode {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.footer-qr-caption {
  color: #101010;
  text-align: center;
  font-family: "PingFang SC";
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: 38px;
}

/* 导航栏 - 背景图长度不够时，居中显示，两侧裁剪，吸顶展示 */
.nav {
  position: sticky;
  top: 0;
  z-index: 200;
  overflow: visible;
  max-width: 1920px;
  height: 70px;
  background-color: #fff;
  background-image: url("../images/nav/nav-bg.png");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  box-sizing: border-box;
}

.nav-container {
  width: 1200px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}

/* 左侧 Logo */
.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-logo a {
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 30px;
  width: auto;
  display: block;
}

/* 右侧导航项容器 */
.nav-items-container {
  display: flex;
  align-items: center;
}

.nav-item-wrapper {
  position: relative;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  margin-right: 12px;
  font-size: 18px;
  font-weight: 400;
  color: #000;
  white-space: nowrap;
  transition: color 0.2s;
}

.nav-item:hover {
  color: #8c3315;
}

.nav-item.selected {
  color: #8c3315;
}

/* 带下拉的导航项 */

.nav-dropdown-icon {
  width: 10px;
  height: 6px;
  margin-left: 6px;
  vertical-align: middle;
  transition: transform 0.2s;
}

.nav-item-wrapper.active .nav-dropdown-icon {
  transform: rotate(180deg);
}

/* 下拉菜单 */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: -2px;
  padding: 8px 0;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 9999;
}

.nav-dropdown-with-qr {
  display: flex;
  padding: 0;
}

.nav-dropdown-qr-only {
  min-width: 0;
  height: auto;
  display: block;
}

.nav-dropdown-qr-only .nav-dropdown-qr {
  position: static;
  left: auto;
  border-left: none;
  padding: 0;
}

.nav-dropdown-qr-only .nav-dropdown-qr-caption {
  margin: 0 0 8px 0;
}

.nav-dropdown-items {
  flex-shrink: 0;
  padding: 8px 10px;
}

.nav-dropdown-qr {
  position: absolute;
  top: 0;
  left: 100%;
  padding-bottom: 8px;
  border-left: 1px solid #c8c8c8;
  background: #fff;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.2s,
    visibility 0.2s;
}

.nav-dropdown-qr.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-dropdown-qr-img {
  display: block;
  width: 130px;
  height: 130px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 6px 9px;
  box-sizing: border-box;
}

.nav-dropdown-qr-caption {
  color: #757575;
  font-family: "PingFang SC";
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
  text-align: center;
}

.nav-dropdown.active-show,
.nav-item-wrapper.active .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* 参与分享等仅二维码的下拉：下拉出现时二维码直接展示，无需 hover */
.nav-item-wrapper.active .nav-dropdown-qr-only .nav-dropdown-qr {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-dropdown-item {
  width: 112px;
  padding: 9px 12px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  border-radius: 6px;
  cursor: pointer;
}

.nav-dropdown-item-text {
  flex: 1;
  color: #444;
  font-size: 16px;
  font-weight: 400;
  line-height: 16px;
}

.nav-dropdown-item-icon {
  width: 10px;
  height: 10px;
  padding-left: 4px;
  object-fit: contain;
  filter: brightness(0);
}

.nav-dropdown-item:hover,
.nav-dropdown-item.highlight_hover {
  color: #fff !important;
  background: #8c3315 !important;
}

.nav-dropdown-item.has-qrcode:hover,
.nav-dropdown-item.has-qrcode.highlight_hover {
  background: #8c3315 !important;
}

.nav-dropdown-item:hover .nav-dropdown-item-text,
.nav-dropdown-item.highlight_hover .nav-dropdown-item-text {
  color: #fff !important;
}

.nav-dropdown-item:hover .nav-dropdown-item-icon,
.nav-dropdown-item.highlight_hover .nav-dropdown-item-icon {
  filter: brightness(0) invert(1);
}

.nav-dropdown-item.selected {
  color: #8c3315;
  font-weight: 500;
}

/* Banner - 视频高度 792px，保持视频比例不变 */
.banner {
  position: relative;
  width: 100%;
  height: 792px;
  min-width: 1200px;
  overflow: hidden;
  background: #fff;
}

.banner-swiper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.banner-swiper .swiper-slide {
  position: relative;
  width: 100%;
  height: 100%;
}

.banner-video {
  width: 100%;
  height: 792px;
  object-fit: contain;
  object-position: right; /* 视频在父容器内靠右展示 */
  background: #fff;
}

/* 蒙层与视频同属 banner-swiper，蒙层靠左展示 */
.banner-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("../images/banner/banner-bg.png") no-repeat left top;
  background-size: cover;
  background-position: left;
  z-index: 1;
  pointer-events: none;
}

.banner-content {
  position: absolute;
  top: 50%;
  left: 360px;
  transform: translateY(-50%);
  width: 770px;
  box-sizing: border-box;
  z-index: 2;
}

.banner-title {
  margin: 0 0 16px;
}

.banner-title-img {
  display: block;
  width: 770px;
  height: auto;
}

.banner-subtitle {
  margin: 0 0 20px;
}

.banner-subtitle-img {
  display: block;
  width: 627px;
  height: auto;
}

.banner-date {
  color: #8c3315;
  font-family: "PingFang SC";
  font-size: 27.143px;
  font-style: normal;
  font-weight: 500;
  line-height: normal;
  margin-bottom: 46px;
}

.banner-btns {
  display: flex;
}

.banner-btns .banner-btn-wrap {
  margin-left: 16px;
}

.banner-btns .banner-btn-wrap:first-child {
  margin-left: 0;
}

.banner-btn-wrap {
  position: relative;
}

.banner-qr-popover {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-12px);
  padding: 8px;
  background: #fff;
  /* border: 1px solid #d3917d; */
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.2s,
    visibility 0.2s;
  z-index: 100;
}

.banner-qr-popover.show {
  opacity: 1;
  visibility: visible;
}

.banner-qr-img {
  display: block;
  width: 130px;
  height: 130px;
  object-fit: contain;
}

.banner-qr-pointer {
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid #fff;
}

.banner-btn {
  display: inline-block;
  padding: 10px 46px;
  font-size: 28px;
  text-align: center;
  border-radius: 80px;
  transition: opacity 0.2s;
}

.banner-btn:hover {
  opacity: 0.9;
}

.banner-btn-primary {
  background: #8c3315;
  color: #fff;
  box-shadow: 0 12px 22.4px 0 rgba(223, 193, 140, 0.25);
}

.banner-btn-primary:hover {
  background: #c26040;
}

.banner-btn-secondary {
  background: transparent;
  background: #ffd798;
  color: #8c3315;
}

.banner-btn-secondary:hover {
  background: #ffe9b2;
}

/* 侧边导航 - 常驻展示 */
.side-nav {
  position: fixed;
  top: 570px;
  right: 0;
  z-index: 300;
}

.side-nav-panel {
  width: 106px;
  background: #fffaec;
  border-radius: 12px 0 0 12px;
  /* box-shadow: -4px 0 20px rgba(0, 0, 0, 0.08); */
  position: relative;
  border-radius: 8px 0 0 8px;
}

.side-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 20px 18px 20px;
  color: #000;
  text-align: justify;
  font-family: "PingFang SC";
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 16px;
  transition:
    color 0.2s,
    background 0.2s;
}

.side-nav-item:hover {
  color: #fff;
  background: #8c3315;
}

.side-nav-inner > .side-nav-item-wrap--contact > .side-nav-item:hover {
  border-radius: 8px 0 0 0;
}
.side-nav-inner > .side-nav-item-wrap--qrcode > .side-nav-item:hover {
  border-radius: 0 0 0 8px;
}

.side-nav-item:hover .side-nav-icon {
  filter: brightness(0) invert(1);
}

.side-nav-icon {
  width: 26px;
  height: 26px;
  margin-bottom: 8px;
  object-fit: contain;
  transition: filter 0.2s;
}

.side-nav-divider {
  height: 1px;
  background: #e8e0d9;
}

.side-nav-qr-popover {
  position: absolute;
  right: 100%;
  top: 50%;
  transform: translateY(-48%) translateX(-2px);
  padding: 10px;
  background: #fff;
  border: 1px solid #d3917d;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.2s,
    visibility 0.2s;
  pointer-events: none;
}

.side-nav-inner {
  position: relative;
}

.side-nav-item-wrap--contact:hover ~ .side-nav-qr-popover--contact,
.side-nav-item-wrap--qrcode:hover ~ .side-nav-qr-popover--qrcode,
.side-nav-qr-popover:hover {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.side-nav-panel {
  position: relative;
}

.side-nav-qr-img {
  display: block;
  width: 140px;
  height: 140px;
  object-fit: contain;
}

.side-nav-qr-caption {
  margin: 8px 0 0;
  color: #000;
  text-align: center;
  font-family: "PingFang SC";
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 16px;
}

/* 页面宽度小于 1920px 时，轮播区域固定 1920px 宽，整体两侧裁剪 */
@media (max-width: 1920px) {
  .main {
    overflow-x: hidden;
  }

  .banner {
    width: 1920px;
    margin-left: 50%;
    transform: translateX(-50%);
  }
}