html, body {
    width: 100%;
    height: 100%;
    font-family: "Microsoft YaHei", "PingFang SC", arial, sans-serif;
}

body {
    padding: 0px;
    margin: 0px;
    text-align: left;
    background-color: #070335;
    color: white;
}


.brand-logo-img {
    height: 30px;
}

#navbarNav {
    justify-content: flex-end;
    cursor: pointer;
}

.brand-logo-img {
    width: auto;
    height: 30px;
}

.navbar {
    background-color: #070335 !important;
    --bs-navbar-padding-y: 5px;
}

.nav-item {
    position: relative;
}

.nav-item.active:after,
.nav-item:hover:after {
    position: absolute;
    bottom: -0px;
    width: 100%;
    height: 2px;
    background: white;

    content: "";
    clear: both;
}

.navbar a {
    color: white;
    text-align: right;
}

a {
    text-decoration: none;
    color: white;
}

.navbar-brand {
    font-size: 15px;
}

.dropdown-menu[data-bs-popper] {
    left: initial;
    right: 0;
}

.navbar-collapse.collapse.show {
    /*max-height: 350px;*/
    overflow-y: auto;
}

.dropdown-menu.show {
    min-width: 200px;
}

.navbar-nav .dropdown-menu.show > li {
    padding: 3px 10px;
    font-size: 14px;
}

.navbar-nav .dropdown-menu.show > li > a:focus,
.navbar-nav .dropdown-menu.show > li > a:hover {
    display: block;
    color: #ffda1a;
    background-color: #2121218b;
}

.dropdown-menu > li > a:hover {
    color: #ffda1a;
    background-color: #2121218b;
}

.main-container {
    width: 100%;
    height: 100%;
}


.page {
    width: 100%;
    min-height: 1000px;
    height: 100%;
    position: relative;

    font-style: italic;
}


.container {
    min-height: inherit;
    padding-top: 50px;
    display: flex;
    flex-direction: column;
}

.collapse-item {
    min-height: 1000px;
    padding-bottom: 80px;
}

.collapse-item .header {
    display: flex;
    align-items: center;

    padding-top: 80px;
}

.collapse-item .case-image {
    width: 150px; /* 图片宽度 */
    height: 150px; /* 图片高度 */
    border-radius: 50%; /* 将图片设置为圆形 */
    cursor: pointer;
}

.collapse-item h1 {
    margin-left: 40px;
}

.collapse-item .content {
    margin-top: 50px;
    display: flex;
    justify-content: space-between;
}

.collapse-item .content .section {
    margin: 20px;
}

.collapse-item .right {
    display: flex;
}

.section .target {
    flex: 1;
}

.section.target p {
    margin-top: 20px;
    font-size: 20px;
}


.section .evaluation {
    flex: 2;
}


.section .outputs {
    flex: 1;
}

.section ul {

    margin-top: 20px;
}


.section li {
    font-size: 20px;
    margin: 10px 0;
}

.case-page {
    position: relative;
    font-style: italic;
    min-height: 100vh;
}

.case1-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("../images/phone/case1_page_bg.jpg") no-repeat center;
    background-size: cover;
    opacity: 0.3; /* 设置背景图像的透明度 */
    z-index: -1; /* 确保背景图像在内容的下方 */
}

.case2-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("../images/phone/case2_page_bg.jpg") no-repeat center;
    background-size: cover;
    opacity: 0.3; /* 设置背景图像的透明度 */
    z-index: -1; /* 确保背景图像在内容的下方 */
}

.case3-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("../images/phone/case3_page_bg.jpg") no-repeat center;
    background-size: cover;
    opacity: 0.3; /* 设置背景图像的透明度 */
    z-index: -1; /* 确保背景图像在内容的下方 */
}

.case-content {
    flex: 100;
    display: flex;

    margin-top: 100px;

    align-items: center;

    justify-content: center;
}

.case {
    text-align: center;
}

.case-img {
    width: 100px;
    height: auto;

    border-radius: 50%;

    margin: 30px;
}


/* Small devices (mobiles) */
@media (max-width: 575.98px) {
    /* Add your styles here for devices with a max-width of 575.98px */
    .navbar a {
        color: rgba(255, 255, 255, 0.6);
        font-size: 14px;
    }

    .navbar-toggler:focus {
        box-shadow: none;
    }

    .nav-link:focus-visible {
        box-shadow: none;
    }

    .main-logo {
        height: auto;
        width: 80%;
    }

    .slogan-content {
        display: none;
    }

    .slogan-content-m {
        display: flex;
    }

    .slogan-content-m p {
        margin-bottom: 4px;
    }

    .page {
        min-height: 900px;
    }

    .collapse-item h1 {
        margin-left: 20px;
    }

    .collapse-item .content {
        margin-top: 30px;
    }

    .collapse-item .header {
        padding-top: 30px;
    }

    .collapse-item .case-image {
        width: 120px;
        height: 120px;
    }

    .collapse-item h1 {
        font-size: 24px;
    }

    .collapse-item .content {
        flex-wrap: wrap;
    }

    .collapse-item .content .section {
        margin: 50px 0 0 0;
    }

    .section .evaluation {
        flex: unset;
    }

    .section .outputs {
        flex: unset;
    }

    .section li {
        font-size: 18px;
    }
}

/* Medium devices (small tablets) */
@media (min-width: 576px) and (max-width: 767.98px) {
    /* Add your styles here for devices with a width between 576px and 767.98px */
}

/* Large devices (large tablets and small desktops) */
@media (min-width: 768px) and (max-width: 991.98px) {
    /* Add your styles here for devices with a width between 768px and 991.98px */
    .application-image {
        width: 150px;
        height: 150px;
    }

    .application-text {
        width: 180px;
        font-size: 16px;
    }
}

/* Extra large devices (desktops and large screens) */
@media (min-width: 992px) and (max-width: 1199.98px) {
    /* Add your styles here for devices with a width between 992px and 1199.98px */
    #page-2 .top-text {
        margin-top: 100px;
    }

    #page-2 .content {
        margin-top: 100px;
    }

    #page-2 .btn-content {
        margin-top: 60px;
    }

    .application-content {
        margin-top: 120px;
    }

    #page-4 .page-text {
        font-size: 25px;
    }

    .committee-members-content {
        padding: 80px 0;
    }
}

/* Extra extra large devices (large desktops and larger screens) */
@media (min-width: 1200px) {
    /* Add your styles here for devices with a width of 1200px and above */
}