body {
    background-color: #f8f8f8 !important;
}

.carousel .carousel-item {
    min-height: 320px;
    max-height: 500px;
}

.carousel .carousel-item img {
    min-height: 320px;
    object-fit:cover;
}

.carousel-caption {
    bottom: 20% !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);
}

.carousel-caption h1 {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    font-size: 4em;
    letter-spacing: -1.5px;
    margin-left: -5px;
}

.carousel-caption h2 {
    color: rgba(255, 255, 255, 0.80);
    font-weight: 300;
    margin-top: -5px;
    margin-right: -10px;
    margin-bottom: 20px;
    font-size: 21px;
}

.bg-img {
    background-image: url("../images/mightrack_background.jpg");

    background-size: cover;
    background-color: #788596;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);

    padding-top: 54px;
    padding-bottom: 54px;
}

@media (min-width: 768px) {
    .bg-marketing {
        height: 500px;
        padding-left: 10%;
        padding-right: 10%;
        padding-top: 180px;
        padding-bottom: 5%;
    }
}
.bg-marketing {
    background-position: center 60%;
}

.bg-img h1 {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 0px;
    font-weight: 400;
    font-size: 5em;
    letter-spacing: -1.5px;
}

.bg-img h2 {
    color: rgba(255, 255, 255, 0.95);
    font-size: 21px;
    margin-bottom: 20px;
    margin-top: 0;
    font-weight: 300;
}

.marketing .col-md-4 {
    margin-top: 20px;
    margin-bottom: 0;
    text-align: center;
}

.marketing .col-md-4 p {
    text-align: left;
}

.marketing h2 {
    font-weight: 400;
    color: #555555;
    font-size: 28px;
    margin-top: 22px;
    margin-bottom: 11px;
}

.featurette, .featurette-light, .featurette-light-alt, .featurette-dark {
    padding-top: 40px;
    padding-bottom: 40px;
    overflow: hidden;
}

.featurette-light {
    background: white;
}

.featurette-light-alt {
    background: #F6F6F6;
}

.featurette-dark {
    background: lightslategray;
    color: #414850;
}

.featurette-dark h2 {
    color: #b6c7e3;
}

.featurette-icon {
    height: 50px;
    margin-left: 2px;
}

.featurette-heading {
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.7px;
    margin-top: 22px;
    margin-bottom: 15px;
    color: #555555;
}

.card {
    margin-bottom: 22px;
}

.media-body h3 {
    color: #555555 !important;
    font-size: 21px;
}

.media-body a {
    color: #337ab7 !important;
    text-decoration: none !important;
}
.media-body a:hover {
    text-decoration: underline !important;
}

.card-footer {
    color: #777777 !important;
}

.footer {
    width: 100%;
    height: 60px;
    background-color: #f8f8f8;
}

.footer-border {
    border-top-color: #e3e3e3;
    border-top-width: 1px;
    border-top-style: solid;
    padding-top: 20px;
}

.pull-right {
    float: right !important;
}

.footer a {
    color: #337ab7 !important;
    text-decoration: none !important;
}
.footer a:hover {
    text-decoration: underline !important;
}

.nav-pills li {
    color: #555555 !important;
}

.sectionHeader {
    color: #555555;
    font-size: 21px;
    margin-top: 33px;
    margin-bottom: 11px;
}

.accordion-body p a {
    color: #337ab7;
    text-decoration: none !important;
}
.accordion-body p a:hover {
    text-decoration: underline !important;
}

.table_border_radius {
    border: 3px solid red;
    border-radius: 10px;
    border-spacing: 0;
    border-collapse: separate;
    opacity: 0.8;
}
.table_border_radius tr td {
    border: none;
    border-bottom: 0px solid black;
    border-right: 0px solid black;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-left: 0px;
    padding-right: 0px;
}
.table_border_radius tr td:first-child {
    border-left: none;
}
.table_border_radius tr td:last-child {
    border-right: none;
}
.table_border_radius tr:first-child td {
    border-top: none;
}
.table_border_radius tr:last-child td {
    border-bottom: none;
}

.table_border_radius td {
    text-shadow: 1px 2px 4px #A0A0A0;
}

.td_symbl {
    width: 60px;
}

.table_border_radius_ng {
    border: 3px solid red;
    border-radius: 10px;
    border-spacing: 0;
    border-collapse: separate;
    opacity: 0.8;
}
.table_border_radius_ng tr td {
    border: none;
    border-bottom: 0px solid black;
    border-right: 0px solid black;
    padding-top: 15px;
    padding-bottom: 15px;
    padding-left: 0px;
    padding-right: 0px;
}
.table_border_radius_ng tr td:first-child {
    border-left: none;
}
.table_border_radius_ng tr td:last-child {
    border-right: none;
}
.table_border_radius_ng tr:first-child td {
    border-top: none;
}
.table_border_radius_ng tr:last-child td {
    border-bottom: none;
}

.img-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hljs { margin-top: 0em; }
pre:has(.hljs) { position: relative; }
.hljs-language {
    position: absolute;
    left: 0; top: 0; margin: 0; padding: 0.7em;
    font-size: 1.2em;
    color: #999999;
    text-transform: lowercase;
    right: 0;
    width: 5em;
    margin-left: auto;
}

.tab-pane {
    background: #FEFEFE;
    border-width: 1px;
    border-style: solid;
    border-color: #F0F0F0;
}

.tab-pane p {
    padding-left: 1em;
}

pre:has(.hljs) {
    margin-bottom: 1px;
}

#navbar-help {
    position: sticky;
    top: 2rem;
    right: 0;
    z-index: 2;
    height: calc(100vh - 7rem);
    overflow-y: auto;
    scrollbar-width: 1px;
}
#navbar-help::-webkit-scrollbar {
    width: 1px;
    background-color: #DE94BF; 
}
/*
.li-head a:active {
        background-color: #DE94BF; 
}
*/
.li-head a:hover {
    text-decoration: underline;
}
.li-head-sub a:hover {
    text-decoration: underline;
}
.li-head-sub {
    margin: 0 0 0 1.5em;
}

.kasaneru{
    position: relative; /* 親要素にrelative */
}
.fade_img1 {
    position: absolute;
    animation :imgfade1 8s infinite;
}
.fade_img2 {
    position: absolute;
    animation :imgfade2 8s infinite;
    opacity: 0;
}
.fade_img3 {
    position: absolute;
    animation :imgfade3 8s infinite;
    opacity: 0;
}
@keyframes imgfade1 {
    0% {
        opacity: 1;
    }
    33% {
        opacity: 0;
    }
    66% {
        opacity: 0;
    }
}
@keyframes imgfade2 {
    0% {
        opacity: 0;
    }
    33% {
        opacity: 1;
    }
    66% {
        opacity: 0;
    }
}
@keyframes imgfade3 {
    0% {
        opacity: 0;
    }
    33% {
        opacity: 0;
    }
    66% {
        opacity: 1;
    }
}