body {
    background-color: white;
    font-family: BlinkMacSystemFont,-apple-system,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,Helvetica,Arial,sans-serif;
    --tsinghua: rgb(102,8,116);
    --shadow: rgb(233, 232, 232);
    --transparent: rgba(0,0,0,0);
}

footer {
    background-color: #eaeaf1;
    width: 100%;
    height: 6.5rem;
    vertical-align: text-bottom;
    position: relative;
    /* bottom:0; */
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0px 0px 4px 0px #b4b4b4;
}

footer .footer_logo {
    padding:0.5rem 1rem;
}

footer img {
    height: 3rem;
}

footer p {
    width: 100%;
    margin:0 auto 0.5rem;
    line-height: 2rem;
    text-align: center;
    position: absolute;
    bottom: 0;
}

footer.under_construction {
    position: fixed;
    bottom: 0;
    left: 0;
}

.boxCard {
    margin-top: 2rem;
    padding: 1rem 15px 0rem 15px;
    background-color: #fafafa;
    box-shadow: 0 0.5em 1em -0.125em hsla(0,0%,4%,.1), 0 0 0 1px hsla(0,0%,4%,.02);
}

.boxCard .row {
    padding-bottom: 1rem;
}

.cel_h1 {
    font-size: 2rem;
    font-weight: 700;
}

.cel_h2 {
    font-size: 1rem;
    font-weight: 700;
}

.input_box {
    width: 100%;
    height: 2rem;
}

.cel_divide {
    width: 100%;
    height: 1rem;
    border-top: 1px solid #6d6c6c;
}

.nav_cel {
    background-color: white;
    box-shadow: 0px 0px 4px 0px #b4b4b4;
    font-size: 16px;
}

.nav_cel button.header_btn {
    display: none;
}

.back_to_nav {
    cursor: pointer;
    width: 50px;
    height: 50px;
    position: fixed;
    right: 5rem;
    bottom: 5rem;
    z-index: 999;
}

.back_to_nav .back_icon {
    width: 100%;
    height: 100%;
}

.page_header {
    position: relative;
    background-color: #eaeaf1;
    /* background: url(../img/header_bg.png); */
    /* background-size: 100%; */
    width: 100%;
    height: calc(50vh);
    color: white;
    display: flex;
    align-items: center;
}

/* 背景滤镜 */
/* .page_header::before {
    content:"";
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    height: 100%;
    background-color: rgba(54, 59, 77, 0.88);
} */

.page_header .header_p {
    height: 100%;
    display: flex;
    align-items: center;
    color: #080808;
}

.header_p h2 {
    font-size: 24px;
    font-weight: 500;
    color:var(--tsinghua);
}

.header_p p {
    font-size: 20px;
    font-weight: 400;
}

.page_header .header_slide {
    width: 100%;
    height: calc(40vh);
    max-height:min-content;
    /* position: relative; */
    overflow: hidden;
}

.header_slide> img {
    display: none;
    width: 100%;
    height: 100%;
    object-fit: scale-down;
}

.header_img> .header_p {
    display: none;
}

.header_slide> img:nth-child(1) {
    display: block;
}

.header_slide .header_img {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    object-fit: scale-down;
}

.header_slide_circles {
    padding-top: 1rem;
    display: flex;
    height: calc(2vh + 1rem);
    justify-content: center;
}

.header_slide_circles .check_circle {
    width: 5%;
    height: 100%;
    /* object-fit: scale-down; */
    /* cursor: pointer; */
}

.header_slide_circles .check_circle img {
    width: 100%;
    height: 100%;
    object-fit: scale-down;
    cursor: pointer;
}

/* @keyframes header_slide {
    from {content:url(../img/logo_w.png)}
    to {content:url(../img/logo_k.png)}
} */

.page_header_cel .breadcrumb-wrapper {
    text-align: center;
}

.home_intro {
    height: 90%;
    max-height: calc(50vh - 44px);
    margin:2rem auto;
    padding:1rem 2rem;
    /* font-family: Arial, Helvetica, sans-serif; */
    font-size: 14px;
    font-weight: 500;
    line-height: 30px;
    color:rgb(86,86,86);
    background-color: #fcfcfc;
    border:0px solid;
    box-shadow: 4px 2px 4px 0px #a4bbc2;
}

.home_row {
    position: relative;
}

.home_row_title {
    display: flex;
    align-items: center;
}

.home_row_list {
    display: flex;
    
}

.home_title {
    /* position: absolute;
    left:0;
    bottom: 50%; */
    font-size: 14px;
    font-weight: 600;
    transform: rotate(270deg);
}

.home_items {
    display: flex;
    justify-content:flex-start;
}

.home_icon {
    height: 160px;
    display: flex;
    text-align: center;
    align-content: center;
    vertical-align: middle;
}

.home_icon img {
    margin:0 auto;
    height: 80%;
}

.home_icon_description {
    /* box-sizing: content-box; */
    width: 100%;
    height: 100%;
    z-index: 889;
    display: none;
    position: absolute;
    /* background-color: #6d6c6c; */
    /* opacity: 0.2; */
}

.home_icon_description p {
    opacity: 1;
    color:black;
}

/* .box:hover .home_icon::before {
    width: 100%;
    height: 100%;
    z-index: 888;
    content:"";
    background-color: var(--tsinghua);
    opacity: 0.3;
    position: absolute;
} */


.cel_btn {
    appearance:auto;
    background-color: rgb(214, 194, 218);
    border:none;
    border-radius: 5px;
    /* border-color:azure; */
    font-weight: 500;
    /* font-family: "Quicksand", sans-serif; */
    animation: btn_click 0.5s ease-in-out;
    cursor: pointer;
}

.cel_btn:active {
    animation: none;
}

@keyframes btn_click {
    40%{
        box-shadow:0px 0px 2px 2px var(--shadow);
    }
    100%{
        box-shadow:0px 0px 0px 0px var(--shadow);
    }
}

.cel_btn:focus {
    color: #000000;
}

.cel_btn_square {
    border-radius: 0;
}

/* .cel_btn::after {
    opacity: 1;
    box-shadow: 0 0 0 20px #0717ee;
    transition: 0.3s;
}

.cel_btn:active::after {
    box-shadow: none;
    opacity: 0.4;
    transition: 1000;
} */

.search_section {
    padding: 0;
    margin-top: 4rem;
    margin-bottom: 3rem;
    box-shadow: 0 0.5em 1em -0.125em hsla(0,0%,4%,.1), 0 0 0 1px hsla(0,0%,4%,.02);;
}

.search_section .search_bar {
    background-color: #fafafa;
    padding: 0.5rem 0;
}

.search_section .search_bar .search_bar_normal {
    display: flex;
    flex-wrap: wrap;
    padding-top: 0.5rem;
}

.search_section .search_bar .search_bar_normal .search_bar_item {
    padding-bottom: 5px;
}

.search_section .search_bar .search_bar_normal .search_btn {
    display: flex;
    align-items: center;
}

.search_section .search_bar #AdvancedSearch {
    display: none;
}


.search_section .search_bar h3 {
    font-size: 12px;
}

.search_section .search_bar .search_bar_input {
    background-color: #fafafa;
    outline: none;
    border: 1px solid black;
    border-radius: 4px;
    width: 100%;
    height: 2rem;
    font-weight: 600;
    color: #080808;
}

.search_section .search_bar select.search_bar_input {
    color: #848484;
}

.search_section .search_bar .search_bar_input::input-placeholder {
    font-family: BlinkMacSystemFont,-apple-system,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,Helvetica,Arial,sans-serif;
    font-weight: 100;
    color:#848484;
}

.search_section .search_bar .search_bar_input::-webkit-input-placeholder {
    font-family: BlinkMacSystemFont,-apple-system,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,Helvetica,Arial,sans-serif;
    font-weight: 100;
    color:#848484;
}

.search_section .search_bar .search_bar_input::-moz-placeholder {
    font-family: BlinkMacSystemFont,-apple-system,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,Helvetica,Arial,sans-serif;
    font-weight: 100;
    color:#848484;
}

.search_section .search_bar select.search_bar_input {
    font-weight: 100;
}

.search_section .search_bar .search_bar_input:focus-visible {
    border-color: var(--tsinghua);
}

.search_section .search_bar .search_bar_btn {
    width:80%;
    height:80%;
    padding:0 0px;
    margin-left: 10%;
    margin-right: 10%;
    border-radius: 5px;
    font-size: 14;
}

.search_section .search_bar .search_bar_btn div {
    height: 25px;
    overflow-wrap: break-word;
    word-wrap:break-word;
}

.search_section .search_bar .search_bar_btn img {
    width: 10%;
    height: 100%;
    object-fit:scale-down;
}

/* .search_section .search_bar .search_bar_btn:focus {
    color: #000000;
} */

.search_section .search_statistics {
    background-color: #f3eff5;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search_section .search_statistics p {
    margin: auto;
    text-align: center;
    /* color: rgb(102,8,116); */
    color: var(--tsinghua);
}

.search_section .search_statistics p#loaded_mes {
    display: block;
}

.search_section .search_statistics p#loading_mes {
    height: 25px;
    display: none;
}

.search_section .search_statistics p#loading_mes img {
    height: 100%;
    object-fit: scale-down;
    animation: rotate_loading 2s linear infinite;
}

@keyframes rotate_loading {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.container .page-sidebar {
    padding-left: 0;
}

#h4_filter {
    height: 5rem;
    position: relative;
}

#h4_filter span {
    font-size: 2.5rem;
    position: absolute;
    left: 2rem;
    line-height: 2.5rem;
}

#h4_filter button {
    border: 0;
    background-color: var(--transparent);
    display: none;
    position: absolute;
    right: 0.5rem;
    top:0.75rem;
    width: 3.5rem;
    height: 3.5rem;
}

#h4_filter button img {
    width: 100%;
    height: 100%;
    object-fit: scale-down;
}

#aside_filter_list ul.side_filter_items {
    padding-left: 0;
}

#aside_filter_list .list-group-item input {
    width: 10%;
}

#aside_filter_list .list-group-item label {
    width: 90%;
}

.detail_chart {
    width: 100%;
    height: 400px;
    margin:0 auto;
    background-color: transparent;
}

#DownloadBTN {
    cursor: pointer;
    /* width:7rem; */
    padding:1px 0.5rem;
    /* height:100%; */
    float: right;
    /* background-color: #8df1ec; */
    border-radius: 5px;
    /* font-family: Arial, Helvetica, sans-serif; */
}

#ResetBTN {
    cursor: pointer;
    /* width:7rem; */
    padding:1px 0.5rem;
    /* height:100%; */
    float: left;
    /* background-color: #8df1ec; */
    border-radius: 5px;
    /* font-family: Arial, Helvetica, sans-serif; */
}

.table_page_btn {
    border-width: 1px;
    border-color: #b4b4b4;
    cursor: pointer;
    float:left;
    width:40px;
    border-width:1px;
    border-radius:5px;
    margin:1px;
}

.table_page_btn:hover {
    border-width: 2px;
}

.table_page_no {
    border-width: 1px;
    border-color: #b4b4b4;
    cursor: not-allowed;
    float:left;
    width:40px;
    border-width:1px;
    border-radius:5px;
    margin:1px;
}

.span_page {
    float:right;
    font-weight: 800;
}

.fatigue_info {
    width: 100%;
}

.table_row {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.table_1 {
    width: 10%;
}

.table_2 {
    width: 20%;
}

.table_3 {
    width: 30%;
}

.table_7 {
    width: 70%;
}

.table_a {
    width: auto;
}

.fatigue_info .table_head {
    height: 3rem;
    border-top: 2px solid var(--shadow);
    border-bottom: 2px solid var(--shadow);
    font-size: 14px;
    font-weight: 700;
    align-items: center;
    justify-items: center;
}

.fatigue_info .table_info {
    height: 5rem;
    border-bottom: 1px solid var(--shadow);
}

.fatigue_info .table_body {
    width: 100%;
}

.fatigue_info .tr_order {
    padding-left:1rem;
    width: 5%;
}

.fatigue_info .table_content {
    display: flex;
    flex-direction: row;
    align-items: center;
    width: 95%;
}

.fatigue_info .table_content div {
    padding:0 1rem;
}

.fatigue_info .tr_title {
    width: 40%;
}

.fatigue_info .tr_authors {
    width: 15%;
}

.fatigue_info .tr_publication {
    width: 20%;
}

.fatigue_info .tr_material {
    width: 10%;
}

.fatigue_info .tr_btn {
    width: 15%;
}

.fatigue_info .btn_details {
    height: 100%;
    width: 30%;
    object-fit: scale-down;
    text-align: center;
    cursor: pointer;
}

/* FOR GLASS */

.fatigue_info .tr_25 {
    width: 25%;
}

.fatigue_info .tr_20 {
    width: 20%;
}

.fatigue_info .tr_15 {
    width: 15%;
}

.fatigue_info .vertical_middle {
    text-align: center;
}

/* .row_info {
    height:100%;
    vertical-align: middle!important;
    word-wrap: break-word;
    align-items: center;
    text-align: center;
} */

.span_info {
    /* width: 100%; */
    height: 100%;
    vertical-align: middle;
    word-wrap: break-word;
    align-items: center;
    text-align: center;
    display: -webkit-box;  /*弹性伸缩盒子*/
    box-orient: vertical;
    -webkit-box-orient: vertical;/*垂直排列*/
    line-clamp: 2;
    -webkit-line-clamp: 2;  /*只显示6行*/
    overflow: hidden;   /*溢出隐藏*/
    text-overflow: ellipsis;   /*省略号代替*/
}

.chart_info_box {
    border-width: 1px;
}

.nav_main {
    /* width: 100%; */
    padding-top: 2rem;
    /* background-color: white; */
    position: relative;
    /* display: flex;
    flex-direction: row; */
}

.nav_main::before,
.nav_main::after {
    content:"";
    height: 0;
    line-height: 0;
    display: block;
    clear: both;
    visibility: hidden;
}

.nav_main .side_nav {
    /* width: 20%; */
    height: 100%;
    padding-top: 2rem;
    padding-left: 1rem;
    /* background-color: white; */
    position: absolute;
    font-size: large;
    /* font-family: Arial, Helvetica, sans-serif; */
    color:#848484
    /* box-shadow: 4px 0px 0px 0px #ecf0f1; */
}

.side_nav a {
    cursor: pointer;
    display: block;
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    width: 100%;
    border-radius: 5px;
    font-size: larger;
    color:#323eec;
}
.side_nav a:hover {
    background-color: #323eec;
    color:#fdfcfc
}

.detail_box {
    float:right;
    /* display: inline; */
    width: 80%;
    padding: 1rem 1rem;
    position: relative;
    right: 0;
    /* margin:0 auto; */
    /* background-color: white; */
}

.detail_0 {
    width:100%;
    display:flex;
    padding:1rem 1rem;
}

.detail_0 .detail_card {
    margin-left: 1%;
    margin-right: 1%;
    /* margin: 0 1% 0 1%; */
    width: 98%;
}

.detail_1 {
    width:50%;
    display: flex;
    flex-direction: column;
    /* padding:0px 1rem */
}

.detail_1 .detail_card {
    margin-left: 2%;
    margin-right: 2%;
    /* margin: 0 2% 0 2%; */
    width: 96%;
}

.detail_card {
    width:98%;
    margin:0px 1% 1rem 1%;
    padding: 2rem 2rem;
    border-radius: 5px;
    box-shadow: 4px 2px 4px 0px #bebebe;
    background-color: #fdfcfc;
}

.detail_card h5 {
    margin-top: 0.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
    font-size:x-large;
}

.detail_card .detail_line {
    width:100%;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid #6d6c6c;
    display: flex;
}

.detail_line .detail_line2 {
    width:50%;
    /* margin-bottom: 0.5rem; */
    /* border-bottom: 1px solid #6d6c6c; */
    display: flex;
}

.detail_title {
    width: 50%;
    /* font-family: 'Times New Roman', Times, serif; */
    font-size: large;
    /* border-bottom: 1px solid #6d6c6c; */
    /* vertical-align: middle; */
}

.detail_item {
    width: 50%;
    /* font-family: 'Times New Roman', Times, serif; */
    font-size: large;
    color:#0717ee;
    overflow-wrap:break-word;
    /* border-bottom: 1px solid #6d6c6c; */
}

.img_container {
    display: flex;
    position: relative;
    width: 100%;
    padding: 0;
}

.img_container .img_main {
    width: 100%;
    height: 100%;
    min-height: calc(100vh);
}

.img_container .img_main.img_detail_open {
    width: 50%;
}

.img_table {
    width: 100%;
    padding: 0 1rem;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    flex-wrap: wrap;
    align-content: flex-start;
}

.img_table button {
    height: 10rem;
    cursor: pointer;
    border:0;
    padding:0;
    margin-top: 0;
    margin-bottom: 1rem;
    margin-left: 1rem;
    margin-right: 1rem;
    background-color: transparent;
}

.img_table img {
    height: 10rem;
}

.img_main .load_more_btn {
    width: 100%;
    padding: 0.5rem 1rem;
    display: none;
}

.img_main .load_more_btn button {
    width: 100%;
    height: 3rem;
    text-align: center;
    background-color:#eaeaf1;
}

.img_detail {
    background-color: #fdfcfc;
    width: 50%;
    height: calc(100vh - 6px);
    padding-bottom: 1rem;
    display: none;
    overflow-y: scroll;
    /* border-left: 2px #848484 solid; */
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;box-shadow: 4px 4px 4px 4px #b4b4b4;
}

.img_detail.img_scroll_up {
    position: absolute;
    top:0;
    right: 0;
}

.img_detail.img_scroll_down {
    position: fixed;
    top:0;
    right: 0;
}

.img_detail #img_detail_top_bar {
    width: 100%;
    height: 3rem;
    padding: 2px 1rem;
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    box-shadow: 0 0 0 2px var(--shadow);
    margin-bottom: 3px;
}

#img_detail_top_bar img {
    height: 50%;
}

#img_detail_top_bar img.close_detail {
    cursor: pointer;
}

.img_detail #img_detail_img {
    /* background-color: rgba(102,8,116,0.3); */
    width: 100%;
    height: calc(60vh);
    margin-bottom: 1rem;
    box-shadow: 0 0 0 2px var(--shadow);
    text-align: center;
}

#img_detail_img img {
    width: 80%;
    height: 100%;
    object-fit:scale-down;
}

.img_detail .img_detail_info_title {
    padding-left: 1rem;
    /* font-family: Arial, Helvetica, sans-serif; */
    font-size: xx-large;
}

.img_detail #img_detail_info {
    padding:1rem 1rem;
    margin-bottom: 0.5rem;
    /* font-family: Arial, Helvetica, sans-serif; */
    font-size: x-large;
    overflow-wrap: normal;
    color: black;
}

.img_detail #img_detail_info .img_info_author {
    margin-top: 5px;
    font-size: medium;
}

.img_detail #img_detail_info a {
    color: blue;
    font-size: medium;
    /* text-decoration: underline; */
}

.img_detail #img_detail_info a:hover {
    text-decoration: underline;
}

.main_part {
    margin-top: 2rem;
}

.page-sidebar ul li div.mat_name_box {
    width: 100%;
    height: 1.2rem;
    /* padding: 0rem 1rem; */
    display: flex;
    align-items: center;
}

.page-sidebar ul li a.mat_name {
    width: 100%;
    height: 1.2rem;
    padding:0 1rem;
    border-radius: 5px;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.2rem;
    color:var(--tsinghua);
    vertical-align: middle;
    cursor: pointer;
}

.page-sidebar ul li a.mat_name:hover {
    color: white;
    background-color: var(--tsinghua);
}

.page-sidebar ul li a.mat_name_chosen {
    color: white;
    background-color: var(--tsinghua);
}

.info_material {
    border-bottom: 1px solid var(--shadow);
}

/* .info_material div.comp_table {
    width: 20rem;
    margin: 5px 10px;
} */

.info_material div.comp_td {
    width: 50%;
    font-size: 14px;
    line-height: 14px;
}

.info_material div.comp_box {
    width: 100%;
    padding: 0;
    display: flex;
}

.info_phase .frame_out {
    display: block;
}

.info_phase .detail_line {
    border-bottom: 1px solid #6d6c6c;
}

.mat_chem_main a.out_web_link {
    color:blue;
    cursor: pointer;
}

.mat_chem_main a.out_web_link:hover {
    color:blue;
}

.info_phase_prop {
    border-top: 1px solid var(--shadow);
    padding:1rem 15px;
    /* margin-top: 1rem; */
    width: 100%;
}

.info_phase_prop .detail_line {
    border-bottom: 1px solid #6d6c6c;
}

.member_photo {
    /* width: 100%; */
    height: 8rem;
    object-fit: scale-down;
}

.about_member {
    margin: 2rem 0rem;
}

.about_name {
    /* font-family: Arial, Helvetica, sans-serif; */
    font-size: x-large;
    color:#080808;
}

.about_info {
    /* font-family: Arial, Helvetica, sans-serif; */
    font-size: medium;
    color:#848484;
}

.EPT_table {
    margin-left: 10%;
    margin-right: 10%;
    display: grid;
    grid-template-columns: repeat(18, 1fr);
    grid-template-rows: repeat(9, 1fr);
    gap: 2px;
    overflow: visible;
    justify-content: center;
    margin-bottom: 2rem;
}

.EPT_table .blank_r11 {
    grid-column: 2 / span 1;
    grid-row: 1/ span 1;
}

.EPT_table .blank_r12 {
    grid-column: 13 / span 5;
    grid-row: 1/ span 1;
}

.EPT_table .blank_r2 {
    grid-column: 3 / span 10;
    grid-row: 1 / span 3;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    padding-left: 2%;
    padding-right: 2%;
    /* overflow-y: scroll; */
}

.EPT_table .blank_r2 .EPT_detail_box {
    height: 30%;
    width: 12.5%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.EPT_table .blank_r2 .EPT_detail_box .EPT_detail {
    height: 80%;
    width: 80%;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    font-size: 12px;
}

.EPT_table .blank_r2 .EPT_detail_box .EPT_detail.EPT_detail_selected {
    color: white;
    background-color: var(--tsinghua);
}

.EPT_table .blank_r81 {
    grid-column: 1 / span 2;
    grid-row: 8 / span 2;
}

.EPT_table .blank_r82 {
    grid-column: 18 / span 1;
    grid-row: 8 / span 2;
}

.EPT_table .element_box {
    border-radius: 2px;
    background-color: rgb(240, 240, 240);
    color: rgb(73, 73, 73);
    padding-top: 15%;
    padding-bottom: 15%;
    font-weight: 600;
    /* height: 100%; */
    position: relative;
    display: flex;
    cursor: pointer;
    border: none;
    appearance: auto;
}

.EPT_table .element_box.highlight_ele {
    background-color: var(--tsinghua);
    color: white;
}

.EPT_table .element_box.selected_ele {
    background-color: #323eec;
}

.EPT_table .element_box:hover {
    transform: scale(1.075);
    filter: brightness(91%)
}

.EPT_table .element_box .element {
    width: 100%;
    /* line-height: 100%; */
    /* height: 100%; */
    /* position: absolute; */
    display: flex;
    justify-content: center;
    align-items: center;
}

.comp_title {
    display: flex;
    width: 100%;
}

.comp_title h4 {
    padding: 1rem 15px 0rem 15px;
    width: 50%;
    font-size: 2rem;
}

.comp_title div {
    display: flex;
    align-items: center;
}

.comp_title div button {
    width: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.comp_title div button div {
    font-weight: 700;
}

.components {
    padding: 1rem 15px 1rem 15px;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
}

.component {
    display: flex;
    width: 12.5%;
    justify-content: center;
    align-items: center;
    padding-top: 5px;
    padding-bottom: 5px;
}

.comp_btn {
    width: 80%;
    border-radius: 10px;
    border: none;
    background-color:var(--tsinghua);
    color: white;
    font-weight: 700;
    animation: btn_click 0.5s ease-in-out;
    cursor: pointer;
}

.comp_btn:active {
    animation: none;
}

@keyframes btn_click {
    40%{
        box-shadow:0px 0px 2px 2px var(--shadow);
    }
    100%{
        box-shadow:0px 0px 0px 0px var(--shadow);
    }
}

.comp_btn_selected {
    background-color: rgb(102,8,116);
    color: white;
}

.pad_h {
    padding-left: 2%;
    padding-right: 2%;
}

.flex_h {
    display: flex;
    flex-wrap: wrap;
}

@media screen and (max-width: 768px) {
    /* for test */
    /* #blank::after {
        content: "fit";
    } */

    /* nav */
    .nav_cel .navbar-header {
        position: relative;
    }

    .nav_cel button.header_btn {
        border:0;
        background-color: var(--transparent);
        height: 20px;
        width: 10%;
        display: inline-block;
        position: absolute;
        right: 1rem;
        /* top: ; */
    } 

    .nav_cel .nav-item button.header_btn {
        top:0;
    }

    .nav_cel button.header_btn img {
        width: 100%;
        height: 90%;
        object-fit: scale-down;
        animation: none;
    }

    .nav_cel #main-navbar {
        display: none;
    }

    .nav_cel #main-navbar a.nav_link_cel {
        width: fit-content;
    }

    .nav_cel #main-navbar .dropdown-menu {
        /* height: 100%; */
        position: relative;
        display: none;
    }

    .nav_cel #main-navbar .dropdown-menu a {
        display: block;
        float:none;
    }

    .nav_cel #main-navbar .dropdown-menu::before {
        display: none;
    }

    /* home */
    .page_header {
        height: calc(90vh);
        display: block;
    }

    .page_header h2 {
        font-size: 18px;
    }
    
    .page_header p {
        font-size: 14px;
    }

    .home_intro {
        max-height: calc(90vh);
    }

    .home_row_title {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .home_title {
        margin-top: 2rem;
        transform: none;
        color:#000000;
        font-size: 24px;
    }

    /* search bar */
    .search_section {
        margin-top: 2rem;
    }
    
    .search_section .search_bar .search_bar_btn {
        width: 100%;
        height: 30px;
        margin:5px 0;
    }

    .search_section .search_bar .search_bar_btn img {
        height: 80%;
    }

    /* side filter */
    .page-sidebar #h4_filter.side_filter_head {
        height: 3rem;
    }

    .page-sidebar #h4_filter.side_filter_head span {
        font-size: 2rem;
        top:0.5rem;
        line-height: 2rem;
    }

    .page-sidebar #aside_filter_list {
        display: none;
    }

    .page-sidebar #h4_filter button {
        height: 2.5rem;
        display: block;
        position: absolute;
        right: 1rem;
        top: 0.25rem;
    }

    .detail_chart {
        height: 300px;
    }

    /* fatigue data info table */
    .fatigue_info .table_head {
        height: 2rem;
    }

    .fatigue_info .table_head .table_content {
        display:none;
    }

    .fatigue_info .table_body .table_info {
        height: auto;
    }

    .fatigue_info .tr_order {
        padding-left: 2px;
    }

    .fatigue_info .table_body .table_content {
        display: inline-block;
        position: relative;
    }

    .fatigue_info .table_body .table_content div {
        width: auto;
    }
    
    .fatigue_info .table_row {
        align-items: normal;
    }

    .fatigue_info .table_row .span_info {
        height: auto;
        text-align: left;
        line-clamp: 1;
        -webkit-line-clamp: 1;
    }

    .fatigue_info .table_body .table_content .tr_btn {
        position: absolute;
        right: 0;
        bottom: 0;
    }

    .fatigue_info .table_body .tr_title {
        font-size: 18px;
        color: var(--tsinghua);
    } 

    .fatigue_info .table_body .tr_material::before {
        content: "Material:";
    }

    /* fatigue detail */
    .nav_main .side_nav {
        display: none;
    }

    .nav_main .detail_box {
        width: 100%;
        padding:0 1px;
    }

    .detail_box .detail_0 {
        padding:1rem 1px;
        flex-direction: column;
    }

    .detail_box .detail_0 .detail_1 {
        width: 100%;
    }

    .detail_box .detail_line,
    .detail_box .detail_line .detail_line2 {
        flex-wrap: wrap;
        border:none;
    }

    .detail_box .detail_line .detail_line2 {
        width: 100%;
    }

    .detail_box .detail_item,
    .detail_box .detail_title {
        width: 100%;
    }

    .detail_box .detail_item {
        border-bottom: 1px solid #6d6c6c;
    }

    /* fatigue img */
    .img_container {
        flex-direction: column-reverse;
    }

    .img_container .img_detail {
        width: 100%;
        max-height: 400px;
    }

    .img_container .img_main {
        margin-top: 1rem;
        width: 100%;
    }

    .img_container .img_main.img_detail_open {
        width: 100%;
    }

    .img_container .img_detail.img_detail.img_scroll_up {
        position: relative;
    }

    .img_container .img_main .img_table button {
        width: 40%;
    }

    .img_container .img_main .img_table img {
        width: 100%;
        object-fit: scale-down;
    }

    /* mat chem */
    /* .info_material {
        border:0;
    } */

}