/* ===== 移动端全屏导航 + 底部悬浮栏（不影响 PC） ===== */

.mob-tabbar {

  display: none;

}



@media (max-width: 992px) {

  :root {

    --mob-nav-bg: #353a4d;

  }



  body.has-mob-tabbar {

    padding-bottom: calc(62px + env(safe-area-inset-bottom, 0px));

  }



  body.nav-open {

    overflow: hidden;

    overflow-x: hidden;

    max-width: 100vw;

  }



  body.nav-open .mob-tabbar {

    display: none;

  }



  /* 展开导航时顶栏 LOGO 区域白底 */

  body.nav-open .site-hd {

    background: #fff !important;

    border-bottom-color: rgba(0, 0, 0, 0.08);

    backdrop-filter: none;

    -webkit-backdrop-filter: none;

  }



  body.has-index-mob-banner.nav-open .site-hd,

  body.has-index-mob-banner.nav-open .site-hd .hd-inner {

    background: #fff !important;

  }



  body.has-index-mob-banner.nav-open .site-hd .logo-img,

  body.has-index-mob-banner.nav-open .site-hd:not(.scrolled) .logo-img {

    filter: none !important;

  }



  body.has-index-mob-banner.nav-open .site-hd .menu-btn span {

    background: #353a4d !important;

  }



  body.nav-open .site-hd .hd-inner {

    background: #fff;

  }



  body.nav-open .site-hd .logo-img {

    filter: none !important;

  }



  body.nav-open .site-hd:not(.scrolled) .logo-img {

    filter: none !important;

  }



  body.nav-open .site-hd .menu-btn span {

    background: #353a4d;

  }



  .nav-overlay.active {

    background: rgba(0, 0, 0, 0.45);

    backdrop-filter: blur(2px);

  }



  .site-nav.open {

    display: flex !important;

    flex-direction: column;

    position: fixed;

    top: 70px;

    left: 0;

    right: 0;

    bottom: 0;

    width: 100%;

    max-width: 100vw;

    height: calc(100vh - 70px);

    height: calc(100dvh - 70px);

    max-height: calc(100vh - 70px);

    max-height: calc(100dvh - 70px);

    background: var(--mob-nav-bg) !important;

    padding: 0;

    margin: 0;

    border-radius: 0;

    box-shadow: none;

    overflow: hidden;

    overflow-x: hidden;

    box-sizing: border-box;

    z-index: 998;

  }



  .site-hd:not(.scrolled) .site-nav.open ul.nav-ul > li > a,

  .site-hd:not(.scrolled) .site-nav.open ul.nav-ul > li.on > a,

  .site-hd:not(.scrolled) .site-nav.open .nav-drop li a {

    color: #fff !important;

  }



  .site-hd:not(.scrolled) .site-nav.open .nav-drop li a:hover {

    background: rgba(255, 255, 255, 0.08) !important;

    color: #fff !important;

  }



  .site-nav.open .nav-ul {

    flex: 1 1 auto;

    flex-direction: column;

    gap: 0;

    align-items: stretch;

    padding: 4px 0 0;

    margin: 0;

    min-height: 0;

    min-width: 0;

    width: 100%;

    max-width: 100%;

    box-sizing: border-box;

    overflow-x: hidden;

    overflow-y: auto;

    -webkit-overflow-scrolling: touch;

  }



  .site-nav.open .nav-ul > li {

    border-bottom: 1px solid rgba(255, 255, 255, 0.12);

    min-width: 0;

    max-width: 100%;

  }



  .site-nav.open .nav-ul > li > a {

    display: block;

    padding: 16px 22px;

    font-size: 18px;

    font-weight: 500;

    color: #fff !important;

    border-radius: 0;

    background: transparent;

  }



  .site-nav.open .nav-ul > li > a::after {

    display: none !important;

  }



  .site-nav.open .nav-ul > li.on > a,

  .site-nav.open .nav-ul > li > a:active {

    background: rgba(255, 255, 255, 0.08);

    color: #fff !important;

  }



  /* 服务项目子项提升为一级导航（不用 display:contents，兼容百度/UC 等 WebView） */

  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) {

    display: block;

    position: static;

    border-bottom: 0;

    padding: 0;

    margin: 0;

  }



  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop)::after {

    display: none !important;

  }



  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) > a {

    display: none !important;

  }



  /* 小程序开发：移动端由「服务项目」子项展示入口，专题走折叠面板 */

  .site-nav.open .has-miniapp-drop,

  .site-nav.open .has-drop > a[href*="hefei-miniapp.html"] {

    display: none !important;

  }



  .site-nav.open .has-miniapp-drop .nav-drop,

  .site-nav.open .has-drop > a[href*="hefei-miniapp.html"] + .nav-drop {

    display: none !important;

  }



  /* 网站建设专题：移动端隐藏桌面下拉，走折叠面板 */

  .site-nav.open .has-website-drop,

  .site-nav.open .has-drop > a[href*="hefei-website.html"] {

    display: none !important;

  }



  .site-nav.open .has-website-drop .nav-drop,

  .site-nav.open .has-drop > a[href*="hefei-website.html"] + .nav-drop {

    display: none !important;

  }



  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop {

    display: block !important;

    position: static !important;

    opacity: 1 !important;

    pointer-events: all !important;

    transform: none !important;

    box-shadow: none !important;

    border: none !important;

    background: transparent !important;

    border-radius: 0 !important;

    padding: 0 !important;

    margin: 0 !important;

    min-width: 0 !important;

    width: 100% !important;

    left: auto !important;

    top: auto !important;

    white-space: normal !important;

  }



  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop li {

    border-bottom: 1px solid rgba(255, 255, 255, 0.12);

    list-style: none;

  }



  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop li a {

    display: block !important;

    padding: 16px 22px !important;

    font-size: 17px !important;

    font-weight: 500 !important;

    color: #fff !important;

    border-radius: 0 !important;

    background: transparent !important;

  }



  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop li a:hover,

  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop li a:active {

    background: rgba(255, 255, 255, 0.08) !important;

    color: #fff !important;

  }



  .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop li a::after {

    display: none !important;

  }



  /* 覆盖各页面 CSS 残留的旧版展开菜单（服务项目米色底、深色字等） */

  .site-hd:not(.scrolled) .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop,

  .site-hd.scrolled .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop {

    background: transparent !important;

    border: none !important;

    box-shadow: none !important;

  }



  .site-hd:not(.scrolled) .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop li a,

  .site-hd.scrolled .site-nav.open .has-drop:not(.has-miniapp-drop):not(.has-website-drop) .nav-drop li a {

    color: #fff !important;

    background: transparent !important;

  }



  /* 小程序开发专题折叠面板（仅移动端） */

  .nav-mob-topic-group {

    border-bottom: 1px solid rgba(255, 255, 255, 0.12);

  }



  .nav-mob-topic-panel {

    display: none;

    background: rgba(0, 0, 0, 0.12);

    overflow: hidden;

  }



  .nav-mob-topic-group.is-open .nav-mob-topic-panel {

    display: block;

  }



  .nav-mob-topic-overview {

    display: block;

    padding: 14px 22px;

    font-size: 16px;

    font-weight: 700;

    color: #fff !important;

    text-decoration: none;

  }



  .nav-mob-topic-overview:active {

    background: rgba(255, 255, 255, 0.08);

  }



  .nav-mob-topic-divider {

    height: 1px;

    margin: 0 22px;

    background: rgba(255, 255, 255, 0.1);

  }



  .nav-mob-topic-subtitle {

    margin: 0;

    padding: 12px 22px 6px;

    font-size: 13px;

    font-weight: 700;

    color: rgba(255, 255, 255, 0.88);

    letter-spacing: 0.4px;

  }



  .nav-mob-topic-toggle {

    display: flex;

    align-items: center;

    justify-content: space-between;

    width: 100%;

    padding: 16px 22px;

    margin: 0;

    border: 0;

    background: transparent;

    color: #fff;

    font-size: 18px;

    font-weight: 500;

    text-align: left;

    cursor: pointer;

    -webkit-tap-highlight-color: rgba(255, 255, 255, 0.08);

    touch-action: manipulation;

  }



  .nav-mob-topic-toggle:active,

  .nav-mob-topic-group.is-open .nav-mob-topic-toggle {

    background: rgba(255, 255, 255, 0.08);

  }



  .nav-mob-topic-arrow {

    flex-shrink: 0;

    width: 8px;

    height: 8px;

    margin-left: 12px;

    border-right: 2px solid rgba(255, 255, 255, 0.75);

    border-bottom: 2px solid rgba(255, 255, 255, 0.75);

    transform: rotate(45deg);

    transition: transform 0.2s ease;

  }



  .nav-mob-topic-group.is-open .nav-mob-topic-arrow {

    transform: rotate(-135deg);

    margin-top: 4px;

  }



  /* 覆盖 site-common 的 .site-nav ul{display:flex}，专题列表必须纵向排列 */

  .site-nav.open ul.nav-mob-topic-list {

    display: block !important;

    flex-direction: column !important;

    align-items: stretch !important;

    width: 100% !important;

    max-width: 100% !important;

    margin: 0 !important;

    padding: 0 0 4px !important;

    list-style: none !important;

    overflow: hidden;

  }



  .site-nav.open .nav-mob-topic-group:not(.is-open) ul.nav-mob-topic-list {

    display: none !important;

  }



  .site-nav.open .nav-mob-topic-list li {

    display: block !important;

    width: 100% !important;

    float: none !important;

    border-top: 1px solid rgba(255, 255, 255, 0.08);

    list-style: none !important;

  }



  .site-nav.open .nav-mob-topic-list li a {

    display: block !important;

    width: 100% !important;

    box-sizing: border-box;

    padding: 12px 22px 12px 28px !important;

    font-size: 16px !important;

    font-weight: 400 !important;

    color: rgba(255, 255, 255, 0.92) !important;

    text-decoration: none;

    white-space: normal !important;

    word-break: break-all;

    writing-mode: horizontal-tb !important;

    border-radius: 0 !important;

    background: transparent !important;

  }



  .site-nav.open .nav-mob-topic-list li a::after {

    display: none !important;

  }



  .site-nav.open .nav-mob-topic-list li a:active,

  .site-nav.open .nav-mob-topic-list li.on a {

    background: rgba(255, 255, 255, 0.08) !important;

    color: #fff !important;

  }



  .site-nav.open .nav-mob-topic-list .nav-drop-dot {

    color: rgba(255, 255, 255, 0.55);

    margin-right: 4px;

  }



  /* 底部电话咨询 / 座机热线（固定在导航面板底部，菜单列表单独滚动） */

  .nav-mob-contact {

    display: grid;

    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);

    gap: 8px;

    padding: 12px 10px calc(16px + env(safe-area-inset-bottom, 0px));

    margin: 0;

    flex: 0 0 auto;

    flex-shrink: 0;

    width: 100%;

    max-width: 100%;

    min-width: 0;

    box-sizing: border-box;

    background: var(--mob-nav-bg);

    border-top: 1px solid rgba(255, 255, 255, 0.1);

    overflow: hidden;

  }



  .nav-mob-tel-card {

    display: flex;

    flex-direction: column;

    align-items: flex-start;

    justify-content: flex-start;

    gap: 4px;

    padding: 10px 8px;

    background: #fff;

    border-radius: 10px;

    text-decoration: none;

    color: var(--dark, #1a1a1a);

    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);

    min-width: 0;

    max-width: 100%;

    width: 100%;

    box-sizing: border-box;

    overflow: hidden;

    cursor: pointer;

    -webkit-tap-highlight-color: rgba(24, 77, 196, 0.15);

    touch-action: manipulation;

  }



  .nav-mob-tel-card:active {

    transform: scale(0.98);

    background: #f8f9fc;

  }



  .nav-mob-tel-ico {

    width: 22px;

    height: 22px;

    color: var(--blue, #184dc4);

    flex-shrink: 0;

  }



  .nav-mob-tel-ico svg {

    width: 100%;

    height: 100%;

    display: block;

  }



  .nav-mob-tel-lbl {

    font-size: 11px;

    color: #888;

    line-height: 1.3;

    flex-shrink: 0;

    max-width: 100%;

    overflow: hidden;

    text-overflow: ellipsis;

    white-space: nowrap;

  }



  .nav-mob-tel-num {

    display: block;

    width: 100%;

    max-width: 100%;

    font-size: 12px;

    font-weight: 700;

    color: var(--dark, #1a1a1a);

    line-height: 1.3;

    word-break: break-all;

    overflow-wrap: anywhere;

    hyphens: auto;

    letter-spacing: -0.4px;

  }



  @media (max-width: 360px) {

    .nav-mob-contact {

      gap: 6px;

      padding: 10px 8px calc(14px + env(safe-area-inset-bottom, 0px));

    }

    .nav-mob-tel-card {

      padding: 8px 6px;

      border-radius: 8px;

    }

    .nav-mob-tel-ico {

      width: 20px;

      height: 20px;

    }

    .nav-mob-tel-lbl {

      font-size: 10px;

    }

    .nav-mob-tel-num {

      font-size: 11px;

      letter-spacing: -0.5px;

    }

  }



  /* 底部悬浮导航 */

  .mob-tabbar {

    display: flex;

    align-items: stretch;

    justify-content: space-around;

    position: fixed;

    left: 0;

    right: 0;

    bottom: 0;

    z-index: 997;

    background: rgba(255, 255, 255, 0.98);

    border-top: 1px solid rgba(0, 0, 0, 0.08);

    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.06);

    padding-bottom: env(safe-area-inset-bottom, 0px);

    backdrop-filter: blur(12px);

    -webkit-backdrop-filter: blur(12px);

  }



  .mob-tabbar-item {

    flex: 1;

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    gap: 5px;

    padding: 9px 3px 11px;

    text-decoration: none;

    color: #666;

    font-size: 12px;

    font-weight: 600;

    line-height: 1.25;

    transition: color 0.2s;

    min-width: 0;

  }



  .mob-tabbar-item:active,

  .mob-tabbar-item.is-active {

    color: var(--blue, #184dc4);

  }



  .mob-tabbar-ico {

    width: 28px;

    height: 28px;

    display: flex;

    align-items: center;

    justify-content: center;

  }



  .mob-tabbar-ico svg {

    width: 26px;

    height: 26px;

    display: block;

  }



  .mob-tabbar-lbl {

    white-space: nowrap;

    overflow: hidden;

    text-overflow: ellipsis;

    max-width: 100%;

  }



  @media (max-width: 360px) {

    .mob-tabbar-item {

      font-size: 11px;

      gap: 4px;

      padding: 8px 2px 10px;

    }

    .mob-tabbar-ico {

      width: 26px;

      height: 26px;

    }

    .mob-tabbar-ico svg {

      width: 24px;

      height: 24px;

    }

  }



  /* 有底部栏时隐藏右侧悬浮按钮，避免遮挡 */

  body.has-mob-tabbar .side-float {

    bottom: calc(74px + env(safe-area-inset-bottom, 0px));

    top: auto;

    transform: none;

    animation: none;

  }

}



@media (min-width: 993px) {

  .nav-mob-contact,

  .mob-tabbar,

  .nav-mob-topic-group {

    display: none !important;

  }

}



/* ===== 页脚移动端适配（全站，由 foot.html 引入） ===== */

@media (max-width: 992px) {

  .ft-top {

    flex-direction: column;

    align-items: stretch;

    padding: 28px 18px 22px;

    gap: 18px;

  }



  .ft-brand {

    text-align: center;

  }



  .ft-brand h4 {

    font-size: 16px;

    line-height: 1.4;

  }



  .ft-brand p {

    font-size: 12px;

    margin-top: 6px;

  }



  .ft-nav {

    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 6px 4px;

    width: 100%;

  }



  .ft-nav a {

    padding: 9px 4px;

    font-size: 12px;

    text-align: center;

    line-height: 1.35;

    border-radius: 6px;

  }



  .ft-main {

    grid-template-columns: 1fr !important;

    gap: 0 !important;

    padding: 4px 18px 28px !important;

  }



  .ft-main > div {

    padding: 22px 0;

    border-bottom: 1px solid rgba(255, 255, 255, 0.07);

  }



  .ft-main > div:last-child {

    border-bottom: none;

    padding-bottom: 4px;

  }



  .ft-col-t {

    font-size:16px !important;

    padding-bottom: 12px !important;

    margin-bottom: 14px !important;

  }



  .ft-tel {

    font-size: 20px !important;

    letter-spacing: 0 !important;

    margin-bottom: 10px !important;

    word-break: break-all;

  }



  .ft-addr,

  .ft-links a,

  .ft-qr-txt {

    font-size: 13px !important;

    line-height: 1.75 !important;

  }



  .ft-addr {

    word-break: break-word;

  }



  .ft-links {

    gap: 10px !important;

    margin-bottom: 12px !important;

  }



  .ft-links a {

    word-break: normal !important;

  }



  .ft-qr {

    gap: 16px !important;

    margin-top: 16px !important;

  }



  .ft-qr img {

    width: 76px !important;

    height: 76px !important;

    flex-shrink: 0;

  }



  .ft-badges {

    gap: 8px !important;

    margin-bottom: 12px !important;

  }



  .ft-badges span {

    font-size: 12px !important;

    padding: 5px 11px !important;

  }



  .ft-col-desc {

    display: block !important;

    font-size: 12px !important;

    line-height: 1.7 !important;

  }



  .ft-btm {

    padding: 18px 18px 22px !important;

    font-size: 11px;

    line-height: 1.85;

    word-break: break-word;

    overflow-wrap: anywhere;

  }



  .ft-btm a {

    font-size: 11px;

    margin: 0 3px;

    word-break: break-all;

  }

}



@media (max-width: 992px) and (min-width: 769px) {

  .ft-main {

    grid-template-columns: 1fr 1fr !important;

    gap: 24px 20px !important;

    padding: 28px 24px 36px !important;

  }



  .ft-main > div {

    padding: 0;

    border-bottom: none;

  }



  .ft-main > div:first-child {

    grid-column: 1 / -1;

    padding-bottom: 20px;

    border-bottom: 1px solid rgba(255, 255, 255, 0.07);

    margin-bottom: 4px;

  }

}