main > .container, main > .container-fluid
{
    padding: 70px 15px 20px;
}

.footer {
    background-color: #f5f5f5;
    font-size: .9em;
    height: 60px;
}

.footer > .container, .footer > .container-fluid {
    padding-right: 15px;
    padding-left: 15px;
}

.not-set {
    color: #c55;
    font-style: italic;
}

/* add sorting icons to gridview sort links */
a.asc:after, a.desc:after {
    content: '';
    left: 3px;
    display: inline-block;
    width: 0;
    height: 0;
    border: solid 5px transparent;
    margin: 4px 4px 2px 4px;
    background: transparent;
}

a.asc:after {
    border-bottom: solid 7px #212529;
    border-top-width: 0;
}

a.desc:after {
    border-top: solid 7px #212529;
    border-bottom-width: 0;
}

.grid-view th,
.grid-view td:last-child {
    white-space: nowrap;
}

.grid-view .filters input,
.grid-view .filters select {
    min-width: 50px;
}

.table-hover tbody tr:hover td, .table-hover tbody tr:hover th {
    background-color: #c6f5ff;  !important;
}

.hint-block {
    display: block;
    margin-top: 5px;
    color: #999;
}

.error-summary {
    color: #a94442;
    background: #fdf7f7;
    border-left: 3px solid #eed3d7;
    padding: 10px 20px;
    margin: 0 0 15px 0;
}

/* align the logout "link" (button in form) of the navbar */
.navbar form > button.logout {
    padding-top: 7px;
    color: rgba(255, 255, 255, 0.5);
}

.underline {
    border-bottom:solid;
    border-width: 2px;
    border-color: #e59633
}

.left-line-gold {
    border-left:solid;
    padding-left: 5px;
    border-width: 3px;
    border-color: #e59633
}

.left-line-blue {
    border-left:solid;
    padding-left: 5px;
    border-width: 3px;
    border-color: #0d22e5
}

.left-line-green {
    border-left:solid;
    padding-left: 5px;
    border-width: 3px;
    border-color: #22c966
}

.help-block {
    color: #a94442;
}

.left-line-red {
    border-left:solid;
    padding-left: 5px;
    border-width: 3px;
    border-color: #c94b33
}

.div-middle-center {
    display:flex;
    align-content: center;
    justify-content: center;
    flex-wrap: wrap
}

.hit-the-floor {
    color: #fff;
    font-size: 64px;
    font-weight: bold;
    font-family: 微軟正黑體,標楷體;
    text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.2), 0 20px 20px rgba(0,0,0,.15);
}

.title-info {
    color: #569dff;
    font-size: 20px;
    font-weight: bold;
    font-family: 微軟正黑體,標楷體;
    /* text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.2), 0 20px 20px rgba(0,0,0,.15); */
}

.title-subject {
    color: #a8340a;
    font-size: 32px;
    font-weight: bold;
    font-family: 微軟正黑體,標楷體;
    text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.2), 0 20px 20px rgba(0,0,0,.15);
}

.title-memo-yellow {
    color: #a87e2f;
    font-size: 20px;
    font-weight: bold;
    font-family: 新細明體;
    /* text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.2), 0 20px 20px rgba(0,0,0,.15); */
}

.title-memo {
    color: #000000;
    font-size: 20px;
    font-weight: bold;
    font-family: 新細明體;
    /* text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.2), 0 20px 20px rgba(0,0,0,.15); */
}

.book-nayi {
    text-shadow: 0 0 5px #303094, 0 0 5px #303094, 0 0 5px #303094, 0 0 5px #303094;
    color:#FFFFFF;
    font-weight: bold;
    font-size:1.2em
}

.book-knsh {
    text-shadow: 0 0 5px #084c01, 0 0 5px #084c01, 0 0 5px #084c01, 0 0 5px #084c01;
    color:#FFFFFF;
    font-weight: bold;
    font-size:1.2em
}

.book-hanlin {
    text-shadow: 0 0 5px #5d3510, 0 0 5px #5d3510, 0 0 5px #5d3510, 0 0 5px #5d3510;
    color:#FFFFFF;
    font-weight: bold;
    font-size:1.2em
}
.book-other {
    text-shadow: 0 0 5px #464d52, 0 0 5px #464d52, 0 0 5px #464d52, 0 0 5px #464d52;
    color:#FFFFFF;
    font-weight: bold;
    font-size:1.2rem
}

@media(max-width:767px) {
    .navbar form > button.logout {
        display:block;
        text-align: left;
        width: 100%;
        padding: 10px 0;
    }
}

.navbar form > button.logout:focus,
.navbar form > button.logout:hover {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.75);
}

.navbar form > button.logout:focus {
    outline: none;
}

/* style breadcrumb widget as in previous bootstrap versions */
.breadcrumb {
    background-color: var(--bs-gray-200);
    border-radius: .25rem;
    padding: .75rem 1rem;
}

.breadcrumb-item > a
{
    text-decoration: none;
}

.main-sidebar {
    height: 100vh;
    overflow-y: hidden;
    z-index: 1038;
}

.main-sidebar a:-moz-focusring {
    border: 0;
    outline: none;
}

.sidebar {
    height: calc(100% - (3.5rem + 1px));
    overflow-x: hidden;
    overflow-y: initial;
    padding-bottom: 0;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    padding-top: 0;
    scrollbar-color: #a9a9a9 transparent;
    scrollbar-width: none;
}

.sidebar::-webkit-scrollbar-thumb {
    background-color: #a9a9a9;
}

.sidebar::-webkit-scrollbar-track {
    background-color: transparent;
}

.sidebar::-webkit-scrollbar-corner {
    background-color: transparent;
}

.sidebar::-webkit-scrollbar {
    width: 0;
}

.sidebar:hover {
    scrollbar-width: thin;
}

.sidebar:hover::-webkit-scrollbar {
    width: .5rem;
    height: .5rem;
}

.situation_css {
    border-width:3px;
    border-style:dashed;
    border-color:#717171;
    padding:10px;
    background-color: #DFDFDF;
    font-size:0.7em;
}

/* 每日點擊人次 */
.hits {
    margin: 15px;
    padding: 25px 20px 25px 20px;
    color: #fff;
    display: block;
    background-image: url('../images/blackboard.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

.brand-link.border-bottom-0 ~ .sidebar {
    height: calc(100% - 3.5rem);
}

.user-panel {
    position: relative;
}

.my-container {
    width:100%;
    overflow: auto;
    padding: 10px;
}

.sr-title {
    color: #a8340a;
    font-size: 1.5em;
    font-weight: bold;
    text-align: center;
    font-family: 微軟正黑體,標楷體;
    text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0,0,0,.1), 0 0 5px rgba(0,0,0,.1), 0 1px 3px rgba(0,0,0,.3), 0 3px 5px rgba(0,0,0,.2), 0 5px 10px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.2), 0 20px 20px rgba(0,0,0,.15);
}
/***** 學習資源相關 ************/
/* 總容器 */
.resource-main-index {
    max-width: 98%;
    margin: 30px auto;
    padding: 20px;
    background-color: #fdfdfd;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    font-family: "Segoe UI", sans-serif;
    font-size: 1.2em;
    line-height: 1.6;
}

/* 標題 */
.resource-title {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 15px;
    border-left: 6px solid #3498db;
    padding-left: 12px;
}

/* 摘要 */
.resource-summary {
    font-size: 18px;
    color: #555;
    margin-bottom: 20px;
    background-color: #ecf0f1;
    padding: 10px 15px;
    border-radius: 8px;
}

/* 內容 */
.resource-content {
    color: #333;
    border: 1px solid #ddd;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 8px;
}
.content-block {
    padding: 15px 0;
    position: relative;
    border-top: 1px dashed #ccc;
    background-color: #fff;
}

.content-block:first-child {
    border-top: none; /* 第一個不要顯示虛線 */
}

.content-tools {
    position: absolute;
    top: 4px;
    right: 10px;
}

.content-tools a {
    margin-left: 8px;
    color: #555;
    text-decoration: none;
}

.content-tools a:hover {
    color: #007bff;
}

.content-body {
    margin-top: 10px;
    color: #333;
    font-size:1.2em;
}

.content-source {
    margin-top: 10px;
    font-size: 12px;
    color: #666;
    text-align: right;
}
.content-body img {
    max-width: 100%;
    height: auto;
    /* display: block; */
    /* margin: 10px auto; */
}
.resource-meta-info {
    font-size: 14px;
    color: #777;
    margin-bottom: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}
.meta-item i {
    color: #888;
}
.meta-tags span {
    background-color: #e1ecf4;
    color: #0366d6;
    padding: 3px 8px;
    border-radius: 15px;
    font-size: 13px;
    margin-right: 5px;
}

.responsive-video {
    width: 100%;
    max-width: 640px; /* 桌機上最大寬度，自己可調整 */
    margin: 1em auto;
}

.responsive-video .video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 高度比例 */
    background-color: black; /* 防止底色破圖 */
    overflow: hidden;
}

.responsive-video iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: black;
}

.cover {
    background-color: #ccc;
    color: transparent;
    border-bottom: 1px dashed #666;
    cursor: pointer;
    transition: color 0.3s;
    font-weight: bold;
}
.cover::after {
    content: '👆';
    color: #333;
    font-size: 0.6em;
    margin-left: 2px;
}
.cover.revealed {
    background-color: transparent;
    color: inherit;
}
.cover.revealed::after {
    content: '';
    font-size: 0.7em;
    color: #999;
}

/* 括號編號 */
.paren-list {
    list-style: none;
    counter-reset: item;
    padding-left: 1.5em;
}

.paren-list > li {
    counter-increment: item;
    position: relative;
    margin-bottom: 0.5em;
}

.paren-list > li::before {
    content: "(" counter(item) ") ";
    position: absolute;
    left: -1.5em;
}

/* 表格內容水平置中 */
table.h-center td {
    text-align: center;
}

/* 表格內容垂直置中 */
table.v-middle td {
    vertical-align: middle;
}

/* 同時水平與垂直置中 */
table.center-both td {
    text-align: center;
    vertical-align: middle;
}

/* 針對不同的螢幕大小設定 */
@media (max-width: 575.99px) {
    /* 手持裝置, 某些欄位不顯示 */
    /*
        1. index.php 裡 GridView::widget([ ]); 底下這兩參數改 false
          'responsive' => false,
          'responsiveWrap'=>false,

        2. 在 .\_columns.php 裡, 要精簡的 'class'=>'\kartik\grid\DataColumn' 這些欄位中加入下面兩行
        'headerOptions'=>['class'=>'mobil_clear'],
        'contentOptions'=>['class'=>'mobil_clear'],
     */
    .mobil_clear {
        display: none; !important;
    }

    .filters {
        display: none; !important;
    }
}

@media (min-width: 576px) and (max-width: 767.99px) {
    .desktop_clear {
        display: none; !important;
    }
}

@media (min-width: 768px) and (max-width: 991.99px) {
    .desktop_clear {
        display: none; !important;
    }
}

@media (min-width: 992px) and (max-width: 1199.99px) {
    .desktop_clear {
        display: none; !important;
    }
}

@media (min-width: 1200px) and (max-width: 1599.99px) {
    .desktop_clear {
        display: none; !important;
    }
    .modal-lg {
        max-width: 90% !important;
    }
    .modal-xl {
        max-width: 90% !important;
    }
}

@media (min-width: 1600px) {
    .desktop_clear {
        display: none; !important;
    }
    .modal-lg {
        max-width: 90% !important;
    }
    .modal-xl {
        max-width: 90% !important;
    }
}

body #ajaxCrudModal .modal-header {
    position: relative !important;
}

body #ajaxCrudModal .close {
    position: absolute !important;
    right: 1rem;
    top: 1rem;
}

.my_head {
    font-size:3em;
    color:#FF0000;
}