.links {
    position: absolute;
    top: 100px; 
    left: 20px; 
}

.links a{
    display: block;
    padding: 5px;
    font-weight: bold;
}


body {
    background-attachment: fixed;
}
.center-gif {
    display: block;
    margin: 20px auto;
}

.main-title {
    color: #FE7533;
    font-weight: bold;
}

body {
    padding-top: 70px;
}
.top-bar {
  position: absolute;
  top: 70px; 
  left: 0;
  width: 100%;
  height: 30px; 
  z-index: 10000; 
}

.title {
    position: fixed; 
    top: 20px; 
    left: 30px;
    color: #FE7533;
    font-weight: bold;
    font-size: 32px;
    z-index: 1000; 
}
.sidebar {
    position: fixed;
    top: 70px;
    left: 0;
    width: 130px;
    bottom: 0;
    background-color: rgba(255, 135, 0, 0.8);
    padding: 30px;
    overflow-y: auto;
    z-index: 1000;
    background-image: url('spacer.gif');
    background-repeat: repeat-y;
}
.sidebar a {
    display: block;
    padding: 8px 15px;
    margin: 5px 0;
    background: linear-gradient(to bottom, rgba(100, 130, 160, 0.3), rgba(60, 90, 120, 0.3));
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    color: white;
    text-decoration: none;
    font-family: Segoe UI, sans-serif;
    font-size: 14px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.2);
    transition: all 0.2s ease-in-out;
    position: relative; 
    z-index: 0;
}
.sidebar a:hover {
    background: linear-gradient(to bottom, rgba(120, 160, 190, 0.4), rgba(80, 110, 140, 0.4));
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.4), 0 0 6px rgba(255,255,255,0.2);
    cursor: pointer;
    z-index: 20000;
}

.top-img {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 75px;
    z-index: 999;
    background-color: white;
    background-size: cover;
    background-repeat: no-repeat;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    opacity: 1 !important;
    mix-blend-mode: normal !important;
}
.sidebarold {
    position: absolute;
    top: 70px;
    left: 0;
    width: 130px;
    height: 100%;
    background-color: rgba(255, 135, 0, 0.8);
    padding: 30px;
    overflow-y: auto;
    z-index: 1000;
    background-image: url('spacer.gif')
}
.sidebarold a {
    display: block;
    padding: 8px 15px;
    margin: 5px 0;
    background: linear-gradient(to bottom, rgba(100, 130, 160, 0.3), rgba(60, 90, 120, 0.3));
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    color: white;
    text-decoration: none;
    font-family: Segoe UI, sans-serif;
    font-size: 14px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.2);
    transition: all 0.2s ease-in-out;
    position: relative; 
    z-index: 0;
}

.sidebarold a:hover {
    background: linear-gradient(to bottom, rgba(120, 160, 190, 0.4), rgba(80, 110, 140, 0.4));
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.4), 0 0 6px rgba(255,255,255,0.2);
    cursor: pointer;
    z-index: 20000;
}

.content {
  margin-top: 30px;
}

.mainpc {
  
}