.header-nav > li > a {
    font-size: 18px;
    font-weight: 500;
}

.header-nav .submenu li a {
    font-size: 16px;
}

/* 移动端菜单字体大小 */
.mobile-menu-bottom .offcanvas-menu > ul > li > a {
    font-size: 18px;
}

.mobile-menu-bottom .mobile-sub-menu > li > a {
    font-size: 16px;
}

/* 返回顶部按钮样式 */
.scroll-to-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 45px;
    height: 45px;
    background-color: #ff4a17;
    color: #ffffff;
    text-align: center;
    line-height: 45px;
    border-radius: 50%;
    z-index: 999;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
}

.scroll-to-top:hover {
    background-color: #333;
    color: #ffffff;
    transform: translateY(-3px);
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
}

.product-title {
    min-width: 100px;
}

.product-title {
    position: relative;
    font-weight: 600;
    font-size: 18px;
    color: #301514;
    padding-right: 100px;
    width: 40%;
}
.product-title::after {
    position: absolute;
    content: "-";
    top: 0;
    right: 40px;
    visibility: hidden;
}
@media (min-width: 576px) {
    .product-title::after {
      visibility: visible;
    }
  }
  .project-content-box .section-content .sub-title,
  .sub-title.smaller-title {
      font-size: 30px !important;
      line-height: 1.4;
  }