.h-fix > .container{
    display: flex;
}
.logo, .logo-text {
    height: 60px;
    max-width: 250px;
    margin: 6px 5px 0 0;
    padding: 0;
    float: left;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    font-size: 0;
    font-weight: normal;
    line-height: 0;
    flex: 0 0 auto;
}
.nav-container{
    flex: 1 1 auto;
    overflow: hidden; /* 核心：隐藏超出内容 */
    white-space: nowrap; /* 关键：防止导航项换行（如果是单行布局） */
  /* 可选：限制最小宽度，避免缩得太窄 */
    min-width: 0; /* 修复Flex布局下min-width:auto导致的不收缩问题（关键！） */
    margin-left: 20px;
}
.nav-container nav > ul{
    display: flex;          /* 导航项也排成一行（可选） */
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 6px; 
}
.logo a {
    display: flex;
    align-items: center;
    height: 100%;
    width: 100%;
}

.logo img {
    max-height: 100%;
    max-width: 100%;
    vertical-align: middle;
    vertical-align: -webkit-baseline-middle;
}
.logo-text a span{
    font-size: 22px;
    color: #4C7D71;
    font-weight: 700;
    letter-spacing: 0.5px;
    display: inline-block;
    vertical-align: middle;
}
.header-right{
    flex: 0 0 230px;
}
.header-search-order-btn{
    float: right;
}
.header-search-order-btn .a {
    display: block;
    margin: 17px 0px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    border-radius: 4px;
    background-color: #4C7D71;
    color: #fff;
    font-size: 14px;
    float: left;
    padding: 0 1rem;
    margin-left: 20px;
}

.header-search-order-btn .a:hover {
    background-color: #3b6359;
}

.header-search-order-btn .a:hover {
    animation-name: shakeAnim;
}

.search, .header-user, .m-btn {
    float: right;
    height: 72px;
    line-height: 72px;
}
.m-btn{
    display: none;
}

.search, .header-user, .m-btn{
    padding: 0 6px;
}

.search i.fa, .header-user i.fa, .m-btn i.fa {
    color: #555;
    line-height: 36px;
    opacity: 0.8;
    font-size: 18px;
    padding: 0;
    -webkit-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    cursor: pointer;
    display: inline-block;
    width: 36px;
    height: 36px;
    text-align: center;
    border-radius: 50%;
}

.search i.fa:hover, .header-user i.fa:hover, .m-btn i.fa:hover {
    opacity: 1;
    background: #EDF2F1;
    color: #4C7D71;
}








/* transition */
.transition {
    -webkit-transition: all ease .4s;
    -moz-transition: all ease .4s;
    -ms-transition: all ease .4s;
    -o-transition: all ease .4s;
    transition: all ease .4s
}

/* 图片高斯模糊 */
.blur {
    -webkit-filter: blur(10px);
    -moz-filter: blur(10px);
    -ms-filter: blur(10px);
    filter: blur(10px);
    filter: progid:DXImageTransform.Microsoft.Blur(PixelRadius=10, MakeShadow=false);
}


.h-fix {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    background: #fff;
    width: 100%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.header {
    display: block;
    height: 72px;
    position: relative;
    left: 0;
    -webkit-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    z-index: 9
}

.header .container:before,
.header .container:after {
    content: "";
    display: table;
}

.header .container:after {
    clear: both;
}

.header .logo h1,
.header .logo div {
    height: 100%;
    display: block;
}



/* 占位元素仅用于撑开宽度，完全不影响视觉 */
.header .logo a .placeholder {
    visibility: hidden;
    /* 隐藏视觉显示 */
    display: inline-block;
    /* 确保宽度由内容决定 */
    font-size: 25px;
    /* 与#light-logo保持一致 */
    height: 0;
    /* 消除占位元素的高度影响 */
    overflow: hidden;
    /* 避免意外换行导致高度变化 */
}



.tel-footer {
    display: none;
}

.header .nav-bar li {
    display: inline-block;
    height: 72px;
    line-height: 72px;
    position: relative;
    vertical-align: top;
    margin: 0 3px;
}

.header .nav-bar li a {
    display: inline-block;
    padding: 0 12px;
    color: #555;
    font-size: 14px;
    font-weight: 500;
    position: relative;
    z-index: 2;
    min-width: auto;
    text-align: center;
    border-radius: 6px;
    height: 36px;
    line-height: 36px;
    margin: 18px 0;
    /* 上下边距替代margin-top */
    transition: all 0.3s;
    white-space: nowrap;
    /* 强制不换行 */
    overflow: hidden;
    /* 隐藏溢出文字 */
    text-overflow: ellipsis;
    /* 显示省略号 */
    max-width: 120px;
    /* 限制单个菜单项最大宽度 */
}

.header .nav-bar li em[class*="dot"] {
    display: inline-block;
    position: relative;
    left: -10px;
    z-index: 1;
    width: 16px;
}

.header .nav-bar li em[class*="dot"] .fa {
    color: #666;
    font-size: 16px;
    width: 16px;
    display: block;
}

.header .nav-bar li a:hover {
    color: #4C7D71;
    background: #EDF2F1;
}

.header .nav-bar li.active:before,
.header .nav-bar li[class*="li-cate-"]:before {
    display: none;
}

.header .nav-bar li.active:after,
.header .nav-bar li[class*="li-cate-"]:after {
    display: none;
}

.header .nav-bar li.active>a {
    color: #4C7D71;
    background: #EDF2F1;
    font-weight: 600;
}


/*二级高亮*/
.header .nav-bar ul li>ul {
    width: 100%;
    min-width: 140px;
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    right: 0;
    background: #fff;
    z-index: 888;
    visibility: hidden;
    opacity: 0;
    border-radius: 8px;
    box-shadow: 0px 8px 20px 0px rgba(0, 0, 0, 0.1);
    -webkit-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    padding: 8px 0;
}

.header .nav-bar ul li>ul li {
    width: 100%;
    height: 36px;
    line-height: 36px;
    display: block;
    margin: 0;
}

.header .nav-bar ul li>ul li a {
    width: 100%;
    text-align: left;
    height: 36px;
    line-height: 36px;
    font-size: 14px;
    color: #666;
    opacity: 1;
    margin: 0;
    padding: 0 20px;
    border-radius: 0;
    font-weight: 400;
}

.header .nav-bar ul li.on a:hover {
    color: #4C7D71;
    background: #EDF2F1;
}

.header .nav-bar ul li.on>ul {
    visibility: visible;
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.header .nav-bar ul li>ul li em[class*="dot"] {
    position: absolute;
    right: 5px;
    left: auto;
    top: 10px;
    z-index: 3;
    -webkit-transform: rotate(-90deg);
    -ms-transform: rotate(-90deg);
    -o-transform: rotate(-90deg);
    transform: rotate(-90deg);
}

.header .nav-bar ul li.on>ul li em[class*="dot"] .fa {
    color: #6b7386;
}

/*三级高亮*/
.header .nav-bar ul li>ul li .sub-menu {
    visibility: hidden;
    opacity: 0;
    display: none;
    left: -100%;
    transform: none;
}

.header .nav-bar ul li>ul li.on .sub-menu {
    right: -100%;
    left: auto;
    top: 0;
    visibility: visible;
    opacity: 1;
    display: block;
}

.header .nav-bar ul li>ul li.on .sub-menu li a,
.header .nav-bar ul li>ul li.on .sub-menu li a:hover {
    background: rgba(0, 0, 0, 0);
    color: #6b7386;
}

.header .nav-bar ul li>ul li.on .sub-menu li.on a,
.header .nav-bar ul li>ul li.on .sub-menu li.on a:hover {
    color: #4C7D71;
}

.m-nav {
    width: 280px;
    background: #fff;
    position: fixed;
    top: 0;
    bottom: 0;
    left: -280px;
    -webkit-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    z-index: 999;
    overflow-y: scroll;
    overflow-x: hidden;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
}

.m-nav .m-btn {
    height: 48px;
    line-height: 48px;
    left: auto;
    right: -45px;
    display: none;
}

.m-nav ul {
    padding-top: 20px;
}

.m-nav li {
    width: 100%;
    position: relative;
}

.m-nav li a {
    padding: 0 25px;
    line-height: 50px;
    color: #333;
    display: block;
    border-bottom: 1px solid #f5f5f5;
    font-size: 15px;
}

.m-nav li a:hover {
    background: #EDF2F1;
    color: #4C7D71;
}

.m-nav ul li>ul {
    display: none;
}

.m-nav li em[class*="dot"] {
    position: absolute;
    top: 0px;
    right: 0px;
    width: 50px;
    height: 50px;
    text-align: center;
    border-left: 1px solid rgba(255, 255, 255, 0);
    cursor: pointer;
}

.m-nav li em[class*="dot"] .fa {
    font-size: 16px;
    color: #999;
    -webkit-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    position: absolute;
    width: 50px;
    line-height: 50px;
    top: 0;
    left: 0;
}

.m-nav li em[class*="dot"] .fa.open {
    -webkit-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg);
}

.m-nav ul li>ul li {
    background: #fcfcfc;
}

.m-nav ul li>ul li a {
    border-bottom: 1px solid #f0f0f0;
    opacity: 0.9;
    font-size: 14px;
    text-indent: 1em;
    color: #666;
}

/*搜索和黑暗模式*/


.search .s-form {
    padding: 15px;
    line-height: none;
    display: block;
    background: #fff;
    position: absolute;
    right: 0;
    top: 72px;
    display: none;
    box-shadow: 0px 8px 20px 0px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    z-index: 1;
    border: 1px solid #f0f0f0;
}

.search .s-form .sform {
    width: 260px;
    padding-right: 0;
    position: relative;
    display: flex;
}

.search .s-form button {
    border: medium none;
    background: #4C7D71;
    position: absolute;
    top: 0;
    right: 0;
    cursor: pointer;
    height: 36px;
    border-radius: 0 4px 4px 0;
}

.search .s-form button i {
    color: #fff;
    font-size: 16px;
    height: 36px;
    line-height: 36px;
    padding: 0;
    width: 40px;
}

.search .s-form button:hover {
    opacity: 0.9
}

.search .s-form .sinput {
    background: #f8f9fa;
    border: 1px solid #eee;
    padding: 0 10px;
    height: 36px;
    line-height: 36px;
    width: 100%;
    font-size: 14px;
    border-radius: 4px;
    color: #333;
}

.search .s-form .sinput:focus {
    border-color: #4C7D71;
    background: #fff;
}

.search .s-form .arrow {
    position: absolute;
    top: -14px;
    right: 10px;
    line-height: 20px;
    color: #fff;
    font-size: 20px;
    opacity: 1;
    text-shadow: 0 -2px 3px rgba(0, 0, 0, 0.05);
}


#mask {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .5);
    z-index: 899;
    display: none;
}

/*----------- 响应式 -----------*/
@media only screen and (max-width:1200px) {

    .wrapper,
    .header .container,
    .crumb {
        padding: 0 15px;
    }

    #nav-box {
        display: none;
    }
    .m-btn{
        display: block;
    }

    .header-right {
        flex: 0 0 150px;
    }
    .nav-container{
        display: none;
    }

    .h-fix .container{
        display: block;
    }

    /* 显示汉堡菜单按钮 */
    .header-search-order-btn {
        display: none;
    }
    body.open .m-nav {
        left: 0px;
    }
}

@media only screen and (max-width:992px) {

    .wrapper,
    .header .container {
        padding: 0 15px;
    }


    .header .logo a span#light-logo {
        font-size: 22px;
    }



    .header {
        top: 0;
        width: 100%;
        z-index: 898;
    }

    /* 导航菜单在平板端的优化 */
    .header .nav-bar {
        max-width: 70%;
        /* 平板端增加导航宽度限制 */
        overflow-x: auto;
        /* 允许水平滚动 */
        overflow-y: hidden;
        /* 隐藏垂直滚动 */
        white-space: nowrap;
        /* 强制不换行 */
        scrollbar-width: none;
        /* 隐藏滚动条 */
        -ms-overflow-style: none;
        /* IE隐藏滚动条 */
        height: 56px;
        /* 固定高度 */
        line-height: 56px;
        /* 垂直居中 */
    }

    .header .nav-bar::-webkit-scrollbar {
        display: none;
        /* Chrome/Safari隐藏滚动条 */
    }
}

@media only screen and (max-width:768px) {

    .logo{
        max-width: 150px;
    }
    .logo-text a span{
        font-size: 20px;
    }

}

/* 超小屏幕导航优化 */
@media only screen and (max-width:480px) {
    .logo{
        max-width: 130px;
    }
    
    .search, .header-user, .m-btn {
        padding: 0 3px;
    }
    .wrapper, .header .container {
        padding: 0 10px;
    }
}
/* 超小屏幕导航优化 */
@media only screen and (max-width:320px) {
    .logo{
        max-width: 100px;
    }
}



.container {
    margin-right: auto;
    margin-left: auto;
    padding-left: 10px;
    padding-right: 10px
}

.container:after,
.container:before {
    content: "";
    display: table
}

.container:after {
    clear: both
}

@media (min-width:768px) {
    .container {
        width: 100%
    }
}

@media (min-width:992px) {
    .container {
        width: 100%
    }
}

@media (min-width:1200px) {
    .container {
        max-width: 1200px
    }
}




/* 底部导航优化 */
.footer-nav {
    display: none;
}

@media (max-width: 1200px) {
    .footer-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: #fff;
        display: flex;
        justify-content: space-around;
        padding: 6px 0 4px;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
        z-index: 999;
        border-top: 1px solid #f5f5f5;
    }
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #999;
    font-size: 11px;
    padding: 0 10px;
    transition: all 0.3s ease;
    flex: 1;
    position: relative;
    justify-content: center;
    height: 50px;
}

.nav-item.active {
    color: #4C7D71;
    font-weight: 500;
}

.nav-icon {
    font-size: 20px;
    margin-bottom: 4px;
    transition: transform 0.3s;
}

.nav-item:active .nav-icon {
    transform: scale(0.9);
}

.nav-item.active .nav-icon {
    transform: scale(1.1);
}