/* CSS Document */
  html, body {
    height: 100%;
    margin: 0;
     
}
body.menu-open {
    overflow: hidden;
}

/* 整个页面 */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

strong {
    font-weight: bolder;
}

a:focus,
a:active {
    outline: none;
    box-shadow: none;
}
/* 内容自动撑开 */

/* HEADER */
.navbar-default {
    background: #fff;
    padding-top: 0px;
    padding-bottom: 30px;
    padding-left: 25px;
    padding-right: 20px;
}


.navbar {
    min-height: auto !important;
}

.logo {
    height: 110px;
    
}

.navbar-default .navbar-nav > li > a {
    font-family: "Instrument Sans", Arial, sans-serif;
    color: #3D3D3D !important;
    font-size: 1.2em;
     margin-left: -10px;
      font-weight: 600;
}


.navbar-nav > li > a:hover {
    text-decoration: underline;
}

/* 去掉 Bootstrap 默认按钮样式 */
.navbar-default .navbar-toggle {
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 10px;
}

/* hover / focus 完全透明 */
.navbar-default .navbar-toggle:hover,
.navbar-default .navbar-toggle:focus {
    background: transparent !important;
}

/* 三条线样式 */
.navbar-toggle .icon-bar {
    background-color: #666;
    height: 2px;
    width: 22px;
    margin: 6px 0;
}

/* ❗ 关键：隐藏中间那条 → 变两条线 */
.navbar-toggle .icon-bar:nth-of-type(2) {
    display: none;
}

 .navbar-nav {
       margin: 35px -25px 25px 0px;
     }

@media (max-width: 767px) {
   

    .navbar-header {
        margin: 0 !important;          /* ? ?? margin */
       
    }

   
.navbar-toggle {
        margin: 35px 0 0 0; /* ? ? ? ? */
    }
    
     .navbar-right {
        margin-right: -30px !important;
    }
    
 .navbar-default 
 {
    background-color: transparent;
    border-color:transparent; 
    }
   
 
    /* ❗ 关键：去掉 container 的左右空位 */
    .navbar > .container-fluid {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }


     .navbar-header {
         width: 100% !important;
        margin: 0 !important;          /* ? ?????? */
    }

  
      .navbar-brand {
        margin: 15px 0px 55px -13px; /* ? ??? */
        padding: 0;
        /*height: 80px !important; */

    }

 

    /* ✅ 两条线 */
    .navbar-toggle .icon-bar {
        margin: 5px 0;
    }
    
    
    
    
   
/* ? ? logo ???????? */
  .navbar-header:after {
        content: "";
        display: block;
        border-bottom: 1px solid #ddd;
        margin-top: 140px;

        /* ? ??????? overflow */
        position: relative;
        left: 50%;
        transform: translateX(-50%);
        width: 100vw;
    }
    
    html, body {
    overflow-x: hidden;
    max-width: 100%;
}

}



    /* dropdown menu */
   /*.navbar-collapse {
        border-top: 0px solid #fff;
        margin-top: 10px;
    }*/

   
@media (max-width: 767px) {

    .navbar-collapse {

        max-height: none !important;
        border: none !important;

        position: fixed;
        top: 0;
        left: 0;
        right: 0;        /* ? ??? */
        width: auto;     /* ? ??? */
        height: 100vh;

        background: #fff;

        z-index: 99999;

        padding: 20px 30px;

        display: flex !important;
        flex-direction: column;
        align-items: flex-end;

        opacity: 0;
        pointer-events: none;
    }

    .navbar-collapse.in {
        opacity: 1;
        pointer-events: auto;
    }

    .navbar-nav {
        width: 100%;
        text-align: right;
         padding-right: 40px;  /* ? ??? */
         margin-right: 10px;
        margin-top: 30px;
    }

    .navbar-nav > li {
        margin: 5px 0;
    }

    .navbar-nav > li > a {
        font-size: 26px;
        font-weight: 600;
        color: #3D3D3D;
    }

    
    .menu-close {
    position: absolute;
    top: 10px;
    right: 50px;
        font-size:20px;

    background: none;
    border: none;
}
    
     /* menu ????? X */
    .navbar-collapse.in .menu-close {
        display: block;
    }
    
    
.custom-footer {
    
    font-size: 15px!important;
}
}

.menu-close {
    display: none; /* ? ???? */
}

/* FOOTER */
.custom-footer {
    background: #000;
    color: #fff;
    padding: 40px 0;
    width: 100%;
    font-size: 16px;
}



.site-content {
   flex: 1;
   padding-top: 15px;
    padding-bottom: 20px;
    }
@media (max-width: 767px) {
    
    .site-content {
  
   /*padding-top: 0px;*/
        margin-top: -30px;
    }
    
    }