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

html {
  /* 设置基准字体大小：10px = 0.625rem，方便计算 */
  font-size: 62.5%;
  /* 1rem = 10px */
  width: 100%;
  height: 100%;
}

body {
  font-size: 1.6rem;
  /* 16px */
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  /* 防止水平滚动条 */
}

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: #333;
}

.container {
  width: 100%;
  max-width: 1440px;
  /* 1440px */
  margin: 0 auto;
  position: relative;
  height: 100%;
  padding: 0 1rem;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  left: 0;
  right: 0;
}

/* 滚动后的导航栏样式 */
.navbar.scrolled {
  background: rgba(255, 255, 255, 1);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

/* 滚动后导航栏文字颜色变化 */
.navbar.scrolled .nav-menu a {
  color: #333 !important;
}

.navbar.scrolled .nav-menu a:hover {
  color: #3a98fa !important;
}

.navbar.scrolled .nav-menu a.active::after {
  background-color: #3a98fa;
}

.navbar.scrolled .nav-right .tel {
  color: #333 !important;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  max-width: 1440px;
  /* 1440px */
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
  height: 6.4rem;
  /* 64px */
}

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

.nav-left a {
  display: flex;
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.2rem;
}

.logo img {
  transition: all 0.3s ease;
  height: auto;
  max-height: 4rem;
  /* 40px */
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 5rem;
  margin-left: 9.2rem;
  /* 92px */
  flex-wrap: nowrap;
  white-space: nowrap;
}

.nav-item {
  position: relative;
}

.nav-menu a {
  color: white;
  text-decoration: none;
  transition: color 0.3s ease;
  position: relative;
  font-size: 1.6rem;
  /* 16px */
  font-weight: 500;
  display: flex;
  align-items: center;
  padding: 1rem 0;
}

.nav-menu a:hover {
  color: #3a98fa;
}

.nav-menu a:hover::after {
  width: 100%;
}

/* 选中状态样式 */
.nav-menu a.active {
  color: white;
}

.nav-menu a.active::after {
  content: "";
  position: absolute;
  bottom: -1.1rem;
  left: 0;
  width: 100%;
  height: 0.3rem;
  background-color: white;
  transition: width 0.3s ease;
}

.navbar-dark .nav-menu a.active::after {
  background-color: #3a98fa !important;
}

/* 二级菜单样式 */
.dropdown-menu {
  position: absolute;
  top: 120%;
  left: 0;
  background: white;
  border-radius: 0;
  box-shadow: 0 0.4rem 2rem rgba(0, 0, 0, 0.15);
  min-width: 20rem;
  /* 200px */
  padding: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-1rem);
  transition: all 0.3s ease;
  z-index: 1000;
  list-style: none;
  border: 0.1rem solid rgba(0, 0, 0, 0.1);
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.has-dropdown .icon-youjiantou{
  display: none;
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: 1.5rem 2rem;
  color: #333;
  font-size: 1.4rem;
  /* 14px */
  font-weight: 400;
  border-radius: 0;
  transition: all 0.3s ease;
  border-bottom: 0.1rem solid rgba(0, 0, 0, 0.05);
}

.dropdown-menu li:last-child a {
  border-bottom: none;
}

.dropdown-menu a:hover {
  background: #f8f9fa;
  color: #3a98fa;
  padding-left: 2rem;
}

.dropdown-menu a::after {
  display: none;
}

.dropdown-menu a::before {
  display: none;
}

/* 防止二级菜单被其他元素遮挡 */
.navbar {
  z-index: 1000;
}

.dropdown-menu {
  z-index: 1001;
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 2.4rem;
  /* 24px */
  font-size: 1.6rem;
}

.nav-right .tel {
  color: white;
  display: flex;
  align-items: center;
}

.nav-right .tel .iconfont {
  margin-right: 0.4rem;
  font-size: 2rem;
  /* 20px */
}

.nav-right .nav-btn {
  border-radius: 2px;
  background: linear-gradient(90deg,
      rgba(35, 167, 253, 1) 0%,
      rgba(253, 26, 226, 1) 100%);
  color: white;
  border: none;
  cursor: pointer;
  padding: 0.4rem 1rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  transform: translateY(0);
  font-size: 1.4rem;
}

/* 悬停效果 */
.nav-right .nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(35, 167, 253, 0.4);
  background: linear-gradient(90deg,
      rgba(35, 167, 253, 0.9) 0%,
      rgba(253, 26, 226, 0.9) 100%);
}

/* 点击效果 */
.nav-right .nav-btn:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 0.2rem 1rem rgba(35, 167, 253, 0.5);
  transition: all 0.1s ease;
}

/* 点击波纹效果 */
.nav-right .nav-btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition:
    width 0.6s ease,
    height 0.6s ease;
}

.nav-right .nav-btn:active::before {
  width: 30rem;
  height: 30rem;
}

/* 深色导航栏样式 */
.navbar-dark .nav-menu a {
  color: #333;
}

.navbar-dark .nav-menu a:hover {
  color: #3b82f6;
}

.navbar-dark .nav-right .tel {
  color: #333;
}

.navbar-dark {
  background: transparent;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar-dark .scrolled {
  background: white;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

/* 统一分页器样式 */
:root {
  --primary-color: #3a98fa;
  --pagination-bg: #DDDEE1;
  --pagination-active: #A2A3A5;
  --pagination-hover: #3a98fa;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.6rem;
  margin-top: 2rem;
}

/* 指示器（Dash）样式 - 以首页为准 */
.page-indicator,
.indicator {
  width: 4rem;
  height: 0.5rem;
  border: none;
  background-color: var(--pagination-bg);
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 0;
  /* 首页是直角 */
}

.page-indicator.active,
.indicator.active {
  background-color: var(--pagination-active);
}

.page-indicator:hover,
.indicator:hover {
  background-color: var(--pagination-hover);
}

/* 数字分页器样式 - 统一颜色和hover效果 */
.pagination-btn,
.pagination-number {
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #E5E5E5 !important;
  border-radius: 0.4rem;
  font-size: 1.6rem;
  color: #666;
  background: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.pagination-btn:hover:not(:disabled):not(.disabled),
.pagination-number:hover {
  border-color: var(--pagination-hover) !important;
  color: var(--pagination-hover);
}

.pagination-number.active {
  background-color: var(--pagination-hover);
  border-color: var(--pagination-hover) !important;
  color: white;
}

.pagination-btn:disabled,
.pagination-btn.disabled {
  cursor: not-allowed;
  opacity: 0.5;
  pointer-events: none;
}

/* 页脚 */
.footer {
  background: transparent;
  color: white;
  padding: 0;
}

/* 页脚顶部紫色区域 */
.footer-top {
  background: url(../images/b-1.png) no-repeat;
  background-size: 100%;
  padding: 6rem 0;
}

.footer-top-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 4rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 2.4rem;
  flex: 1;
}

.footer-logo img {
  height: 8rem;
  /* 80px */
  width: auto;
}

.footer-logo img::before {
  content: "LOGO";
  display: block;
  text-align: center;
  line-height: 6rem;
  color: rgba(255, 255, 255, 0.5);
  font-size: 1.2rem;
}

.partner-logo img::before {
  content: "PARTNER";
  display: block;
  text-align: center;
  line-height: 4rem;
  color: #999;
  font-size: 1rem;
}

.qr-code img::before {
  content: "QR";
  display: block;
  text-align: center;
  line-height: 8rem;
  color: #999;
  font-size: 1.2rem;
}

.footer-brand-info h3 {
  font-size: 2.4rem;
  font-weight: bold;
  color: white;
}

.footer-brand-info p {
  font-size: 1.4rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  max-width: 50rem;
  white-space: nowrap;
}

.footer-buttons {
  display: flex;
  gap: 2rem;
  flex-shrink: 0;
}

.footer-btn {
  padding: 1.2rem 3.6rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-block;
  background: radial-gradient(62% 193.75% at 50% 50%,
      rgba(130, 255, 242, 0) 0%,
      rgba(39, 198, 236, 0.1) 41.61%,
      rgba(39, 198, 236, 0.7) 100%);
  border: 0.5px solid rgba(7, 255, 244, 1);
  color: rgba(7, 255, 244, 1);
  position: relative;
  overflow: hidden;
  transform: translateY(0);
  box-shadow: 0 4px 15px rgba(7, 255, 244, 0.2);
  z-index: 1;
}

/* 文字内容层级 */
.footer-btn>* {
  position: relative;
  z-index: 3;
}

/* Hover效果 */
.footer-btn:hover {
  transform: translateY(-0.3rem);
  box-shadow: 0 0.8rem 2.5rem rgba(7, 255, 244, 0.4);
  background: radial-gradient(62% 193.75% at 50% 50%,
      rgba(130, 255, 242, 0.1) 0%,
      rgba(39, 198, 236, 0.3) 41.61%,
      rgba(39, 198, 236, 0.9) 100%);
  border-color: rgba(7, 255, 244, 1);
  color: rgba(7, 255, 244, 1);
}

/* 发光扫过效果 */
.footer-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent,
      rgba(7, 255, 244, 0.3),
      transparent);
  transition: left 0.5s ease;
  z-index: 1;
}

.footer-btn:hover::before {
  left: 100%;
}

/* 点击效果 */
.footer-btn:active {
  transform: translateY(-0.1rem) scale(0.98);
  box-shadow: 0 0.4rem 1.5rem rgba(7, 255, 244, 0.6);
  transition: all 0.1s ease;
}

/* 脉冲动画效果 */
.footer-btn::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(7, 255, 244, 0.3);
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
  z-index: 2;
}

.footer-btn:hover::after {
  width: 120%;
  height: 120%;
  opacity: 0;
}

/* 不同类型按钮的特殊样式 */
.footer-btn.btn-outline {
  background: transparent;
  border: 0.2rem solid rgba(7, 255, 244, 0.6);
  color: rgba(7, 255, 244, 1);
  box-shadow: 0 0.4rem 1.5rem rgba(7, 255, 244, 0.1);
}

.footer-btn.btn-outline:hover {
  background: rgba(7, 255, 244, 0.1);
  border-color: rgba(7, 255, 244, 1);
  box-shadow: 0 0.8rem 2.5rem rgba(7, 255, 244, 0.3);
  transform: translateY(-0.3rem);
}

.footer-btn.btn-solid {
  background: rgba(7, 255, 244, 0.2);
  border: 0.2rem solid rgba(7, 255, 244, 0.8);
  color: rgba(7, 255, 244, 1);
  box-shadow: 0 0.4rem 1.5rem rgba(7, 255, 244, 0.2);
}

.footer-btn.btn-solid:hover {
  background: rgba(7, 255, 244, 0.3);
  border-color: rgba(7, 255, 244, 1);
  box-shadow: 0 0.8rem 2.5rem rgba(7, 255, 244, 0.4);
  transform: translateY(-0.3rem);
}

/* 页脚底部灰色区域 */
.footer-bottom-section {
  background: #edf0f5;
  color: #333;
  padding: 6rem 0 3rem;
}

/* 合作伙伴区域 */
.partners-section {
  margin-bottom: 3rem;
  text-align: center;
  padding: 4rem 0 0;
  border-bottom: 0.1rem solid #d7d9da;
}

.partners-title {
  font-size: 1.8rem;
  /* 18px */
  color: #333;
  font-weight: 600;
  text-align: left;
}

.partners-logos {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0;
  flex-wrap: nowrap;
  padding: 2rem 0;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
}

.partners-scroll {
  display: flex;
  align-items: center;
  gap: 0;
  width: max-content;
  animation: scroll 40s linear infinite;
  /* 默认时长，JS 会根据内容宽度动态计算 */
}

.partners-logos:hover .partners-scroll {
  animation-play-state: paused;
}

@keyframes scroll {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

.partner-logo {
  opacity: 0.7;
  transition: opacity 0.3s ease;
  height: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 0 40px;
  flex-shrink: 0;
  width: 240px;
}

.partner-logo img {
  height: 45px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1);
  transition: filter 0.3s ease;
}

.partner-logo:hover {
  opacity: 1;
}

.partner-logo:hover img {
  filter: grayscale(0);
}

.partner-logo:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0.1rem;
  height: 5rem;
  background-color: #d7d9da;
}

.partner-logo img {
  height: 100%;
  width: auto;
  max-width: 12rem;
  /* 120px */
  object-fit: contain;
  filter: grayscale(30%);
  transition: filter 0.3s ease;
}

.partner-logo:hover img {
  filter: grayscale(0%);
}

/* 主要内容区域 */
.footer-content {
  display: grid;
  grid-template-columns: 2fr 2fr 2fr 1fr 4fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-section h4 {
  color: #333;
  margin-bottom: 2rem;
  font-size: 1.8rem;
  /* 18px */
  font-weight: 600;
  position: relative;
  padding-bottom: 1rem;
}

.footer-section h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0.1rem;
  background-color: #d7d9da;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: 1.6rem;
}

.footer-section ul li a {
  color: #333;
  text-decoration: none;
  font-size: 1.4rem;
  /* 14px */
  line-height: 1.4;
  transition: color 0.3s ease;
  display: block;
  font-weight: 500;
}

.footer-section ul li a:hover {
  color: #3b82f6;
}

.footer-section .case {
  display: block;
}

.footer-section .case ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(8, auto);
  list-style: none;
  padding: 0;
  margin: 0;
}

.product-desc {
  font-size: 1.2rem;
  /* 12px */
  color: #8c8c8c;
  font-weight: normal;
}

/* 联系我们区域 */
.contact-section {
  position: relative;
}

.contact-info {
  font-size: 1.4rem;
  /* 14px */
}

.contact-item {
  margin-bottom: 1.6rem;
}

.contact-label {
  color: #8c8c8c;
  font-size: 1.3rem;
  /* 13px */
}

.contact-value {
  color: #333;
  font-weight: 500;
}

.qr-code {
  display: flex;
  text-align: center;
  align-items: center;
}

.qr-code img {
  width: 8rem;
  /* 80px */
  height: 8rem;
}

.qr-code p {
  font-size: 1.2rem;
  /* 12px */
  color: #666;
  text-align: left;
  margin-left: 1.2rem;
}

.qr-code p .qr-value {
  color: #333;
  font-weight: 500;
}

/* 版权信息 */
.footer-copyright {
  border-top: 0.1rem solid #d7d9da;
  padding-top: 2rem;
}

.footer-copyright p {
  color: #8c8c8c;
  font-size: 1.3rem;
  /* 13px */
  margin: 0;
}

.footer-copyright a {
  color: #8c8c8c;
}

/* 移动端导航菜单 */

.mobile-logo{
  display: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 2.5rem;
  /* 25px */
  height: 0.3rem;
  /* 3px */
  background-color: white;
  margin: 0.3rem 0;
  transition: all 0.3s ease;
  border-radius: 0.2rem;
}

.navbar.scrolled .nav-toggle span {
  background-color: #333;
}

/* 移动端响应式样式 */
@media screen and (max-width: 1024px) {
  .nav-container {
    padding: 1rem 2rem;
  }

  .nav-menu {
    margin-left: 4rem;
    gap: 1.5rem;
  }

  .has-dropdown .icon-youjiantou{
    display: block;
  }

  .nav-menu a {
    font-size: 1.4rem;
  }
  .nav-menu a.active::after{
    display: none;
  }
  .nav-right {
    gap: 1.6rem;
    font-size: 1.4rem;
  }

  .nav-right .nav-btn {
    padding: 0.6rem 1.6rem;
    font-size: 1.4rem;
  }

  /* 页脚适配 */
  .footer-top {
    padding: 4rem 0;
  }

  .footer-top-content {
    flex-direction: column;
    gap: 3rem;
    text-align: center;
  }

  .footer-brand {
    flex-direction: column;
    text-align: center;
  }

  .footer-brand-info p {
    white-space: normal;
  }

  .footer-buttons {
    width: 100%;
    justify-content: center;
  }

  .footer-content {
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
  }

  .contact-section {
    grid-column: 1 / -1;
  }
}

@media screen and (max-width: 1024px) {
  .nav-container {
    padding: 1rem;
    position: relative;
  }

  .nav-toggle {
    display: flex;
    z-index: 1002;
  }

  .nav-left {
    width: 100%;
    justify-content: space-between;
  }

  .logo img {
    max-height: 3.2rem;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 0;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(2rem);
    width: 80%;
    max-width: 30rem;
    height: 100vh;
    padding: 0 0 2rem;
    margin: 0;
    gap: 0;
    transition: left 0.3s ease;
    overflow-y: auto;
    box-shadow: 0.2rem 0 1rem rgba(0, 0, 0, 0.1);
    z-index: 1001;
  }

  .nav-menu.active {
    left: 0;
  }

  .mobile-logo {
    display: block;
    width: 100%;
    padding: 2.5rem 3rem;
    border-bottom: 0.1rem solid rgba(0, 0, 0, 0.05);
    margin-bottom: 1rem;
    background: white;
    list-style: none;
  }

  .mobile-logo .logo {
    display: flex;
    justify-content: flex-start;
  }

  .mobile-logo .logo img {
    max-height: 3.5rem;
  }

  .nav-menu a {
    color: #333;
    padding: 1.5rem 3rem;
    width: 100%;
    font-size: 1.6rem;
    position: relative;
  }

  /* On mobile, fix styles for active links that bleed from desktop */
  .nav-menu a.active {
    color: #3a98fa;
    /* Ensure active link text is visible */
  }


  .has-dropdown>.dropdown-arrow {
    position: absolute;
    right: 2rem;
    top: 50%;
    font-size: 1.2rem;
    transform: translateY(-50%) rotate(0deg);
    color: #999;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s ease;
  }

  .nav-item.active>.dropdown-arrow {
    transform: translateY(-50%) rotate(90deg);
    color: #3a98fa;
  }


  .nav-menu a:hover {
    background-color: #f8f9fa;
    color: #3a98fa;
  }

  .nav-item {
    width: 100%;
    border-bottom: 0.1rem solid rgba(0, 0, 0, 0.05);
  }

  .nav-item:last-of-type {
    border-bottom: none;
  }

  /* 移动端二级菜单样式 */
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: #f8f9fa;
    border: none;
    border-radius: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease,
                transform 0.3s ease;
    padding: 0;
    width: 100%;
    display: block !important;
    opacity: 0;
    transform: translateY(-10px);
  }

  .nav-item.active .dropdown-menu {
    max-height: 80rem;
    opacity: 1;
    transform: translateY(0);
  }

  .dropdown-menu a {
    padding: 1.2rem 3rem 1.2rem 5rem;
    font-size: 1.4rem;
    border-bottom: 0.1rem solid rgba(0, 0, 0, 0.05);
    display: block !important;
  }

  .dropdown-menu a:hover {
    padding-left: 5.5rem;
  }

  .nav-right {
    position: fixed;
    bottom: 0;
    left: -100%;
    width: 80%;
    max-width: 30rem;
    background-color: white;
    padding: 2rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1.5rem;
    box-shadow: 0.2rem -0.2rem 1rem rgba(0, 0, 0, 0.1);
    transition: left 0.3s ease;
    z-index: 999;
  }

  .nav-right.active {
    left: 0;
  }

  .nav-right .tel {
    color: #333;
    justify-content: center;
    font-size: 1.6rem;
  }

  .nav-right .nav-btn {
    width: 100%;
    padding: 1.2rem;
    font-size: 1.6rem;
  }

  /* 汉堡菜单动画 */
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(0.8rem, 0.8rem);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(0.7rem, -0.7rem);
  }

  /* 遮罩层 */
  .nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 998;
  }

  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  /* 页脚移动端适配 */
  .footer-top {
    padding: 3rem 0;
    background-size: cover;
  }

  .footer-top-content {
    gap: 2.5rem;
  }

  .footer-brand {
    gap: 1.5rem;
  }

  .footer-logo img {
    height: 6rem;
  }

  .footer-brand-info h3 {
    font-size: 2rem;
  }

  .footer-brand-info p {
    font-size: 1.4rem;
    max-width: 100%;
  }

  .footer-buttons {
    flex-direction: column;
    width: 100%;
    max-width: 30rem;
  }

  .footer-btn {
    width: 100%;
    padding: 1.2rem 2rem;
    font-size: 1.5rem;
  }

  .footer-bottom-section {
    padding: 4rem 0 2rem;
  }

  .partners-section {
    padding: 3rem 0 0;
  }

  .partners-title {
    font-size: 1.6rem;
  }

  .partners-logos {
    flex-wrap: wrap;
    gap: 2rem;
    padding: 2rem 0;
  }

  .partner-logo {
    flex: 0 0 calc(33.333% - 1.5rem);
    height: 4rem;
  }

  .partner-logo:not(:last-child)::after {
    display: none;
  }

  .partner-logo img {
    max-width: 10rem;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem 2rem;
  }

  .footer-section h4 {
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
  }

  .footer-section ul li {
    margin-bottom: 1.2rem;
  }

  .footer-section ul li a {
    font-size: 1.3rem;
  }

  .footer-section .case {
    flex-direction: column;
    gap: 1.5rem;
  }

  .contact-section {
    grid-column: 1 / -1;
  }

  .contact-info {
    font-size: 1.3rem;
  }

  .contact-item {
    margin-bottom: 1.2rem;
  }

  .qr-code {
    justify-content: center;
    margin-top: 1.5rem;
  }

  .qr-code img {
    width: 7rem;
    height: 7rem;
  }

  .footer-copyright p {
    font-size: 1.2rem;
    text-align: center;
  }
}

@media screen and (max-width: 480px) {
  .nav-menu {
    width: 85%;
  }

  .nav-right {
    width: 85%;
  }

  .logo img {
    max-height: 2.8rem;
  }

  .nav-toggle span {
    width: 2.2rem;
    height: 0.25rem;
  }

  /* 页脚小屏适配 */
  .footer-top {
    padding: 2.5rem 0;
  }

  .footer-logo img {
    height: 5rem;
  }

  .footer-brand-info h3 {
    font-size: 1.8rem;
  }

  .footer-brand-info p {
    font-size: 1.3rem;
  }

  .footer-btn {
    padding: 1rem 1.5rem;
    font-size: 1.4rem;
  }

  .partners-logos {
    gap: 1.5rem;
  }

  .partner-logo {
    flex: 0 0 calc(50% - 1rem);
    height: 3.5rem;
  }

  .partner-logo img {
    max-width: 8rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-section h4 {
    font-size: 1.5rem;
  }

  .footer-section ul li a {
    font-size: 1.2rem;
  }

  .product-desc {
    font-size: 1.1rem;
  }

  .qr-code {
    flex-direction: column;
    gap: 1rem;
  }

  .qr-code p {
    margin-left: 0;
    text-align: center;
  }

  .footer-copyright p {
    font-size: 1.1rem;
    line-height: 1.6;
  }
}