/*******************************************************************************
 * 基本设置
 ******************************************************************************/

*,
::after,
::before {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
    /* 解决打印页面，背景色丢失的问题 */
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
}

body {
    background-color: var(--color-body-bg);
    color: var(--color-text);
    line-height: 1.5;
    transition:
        background-color 0.3s ease,
        color 0.3s ease;
}

ol {
    list-style: none;
}

ul {
    list-style: none;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
}

a:link {
    color: var(--color-link);
    background-color: transparent;
    -webkit-tap-highlight-color: transparent;
}

a:visited {
    color: var(--color-link);
    background-color: transparent;
    -webkit-tap-highlight-color: transparent;
}

a:hover {
    color: var(--color-link-hover);
    background-color: transparent;
    -webkit-tap-highlight-color: transparent;
    text-decoration: underline;
    text-decoration-thickness: 2px;
}

a:active {
    color: var(--color-link-active);
    background-color: transparent;
    -webkit-tap-highlight-color: transparent;
}

input {
    outline: none;
    background: transparent;
    border: none;
}

input:focus {
    outline: none;
    background-color: transparent;
}

textarea {
    outline: none;
    background: transparent;
    border: none;
}

textarea:focus {
    outline: none;
    background-color: transparent;
}

button {
    user-select: none;
    outline: none;
    font-size: var(--layout-btn-font-size);
    padding: var(--layout-btn-padding);
    border: var(--layout-btn-border-size) solid var(--color-btn-border);
    color: var(--color-btn-text);
    background-color: var(--color-btn-bg);
}

button:hover {
    color: var(--color-btn-hover-text);
    background-color: var(--color-btn-hover-bg);
}

button:active {
    color: var(--color-btn-active-text);
    background-color: var(--color-btn-active-bg);
}

/*******************************************************************************
 * 按钮
 ******************************************************************************/

label.btn {
    display: block;
    font-size: var(--layout-btn-font-size);
    padding: var(--layout-btn-padding);
    border: var(--layout-btn-border-size) solid var(--color-btn-border);
    color: var(--color-btn-text);
    background-color: var(--color-btn-bg);
}

label.btn:hover {
    color: var(--color-btn-hover-text);
    background-color: var(--color-btn-hover-bg);
}

label.btn:active {
    color: var(--color-btn-active-text);
    background-color: var(--color-btn-active-bg);
}

a.btn {
    display: block;
    font-size: var(--layout-btn-font-size);
    padding: var(--layout-btn-padding);
    border: var(--layout-btn-border-size) solid var(--color-btn-border);
    color: var(--color-btn-text);
    background-color: var(--color-btn-bg);
}

a.btn:hover {
    color: var(--color-btn-hover-text);
    background-color: var(--color-btn-hover-bg);
    text-decoration: none;
}

a.btn:active {
    color: var(--color-btn-active-text);
    background-color: var(--color-btn-active-bg);
}

/*******************************************************************************
 * 容器
 ******************************************************************************/

.container {
    max-width: var(--layout-container-max-width);
    padding: var(--layout-container-padding);
    margin: 0 auto;
}

/*******************************************************************************
 * 顶部
 ******************************************************************************/

.container > header {
    display: flex;
    flex-direction: column;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-header-border);
}

/*******************************************************************************
 * 底部
 ******************************************************************************/

.container > footer {
    padding-top: 0.5rem;
    border-top: 2px solid var(--color-footer-border);
}

/*******************************************************************************
 * 主体
 ******************************************************************************/

.container > main {
    padding: 1rem 0;
}

/*******************************************************************************
 * LOGO
 ******************************************************************************/

.logo {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-weight: normal;
    font-size: 1.75rem;
    align-items: center;
    gap: 0.75rem;
    border: 2px solid var(--color-logo-border);
    padding: 0.5rem 0;
    background-color: var(--color-logo-bg);
    white-space: nowrap;
}

.logo > img {
    height: 2rem;
    vertical-align: middle;
}

/*******************************************************************************
 * 工具栏
 ******************************************************************************/

.toolbar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.toolbar > :last-child {
    flex: 1 1 auto;
}

/*******************************************************************************
 * 面包屑导航栏
 ******************************************************************************/

.breadcrumb > ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.breadcrumb > ol > li:not(:last-child)::after {
    content: "/";
    padding: 0 0.375rem;
    color: var(--color-breadcrumb-delimiter);
}

.breadcrumb > ol > li:last-child a {
    --color-link-text: var(--color-breadcrumb-disabled);
    --color-link-text-hover: var(--color-breadcrumb-disabled);
    --color-link-text-active: var(--color-breadcrumb-disabled);

    pointer-events: none;
}

.breadcrumb > ol > li span {
    color: var(--color-breadcrumb-disabled);
}

/*******************************************************************************
 * 菜单
 ******************************************************************************/

.menu {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
}

.menu > li:not(:first-child)::before {
    content: "|";
    padding: 0 0.375rem;
    color: var(--color-menu-delimiter);
}

.menu > li span {
    color: var(--color-menu-disabled);
}

/*******************************************************************************
 * 模块导航
 ******************************************************************************/

.module-nav {
    margin-top: 1rem;
}

.module-nav > ul {
    display: flex;
    flex-direction: column;
    text-align: center;
}

.module-nav > ul > li:not(:first-child) {
    margin-top: 0.5rem;
}

/*******************************************************************************
 * 表单
 ******************************************************************************/

.form {
    display: flex;
    flex-direction: column;
}

.form > *:not(:first-child) {
    margin-top: 0.5rem;
}

.form-input-group {
    display: flex;
}

.form-input-group > * {
    border: 1px solid var(--color-form-border);
}

.form-input-group > *:not(:first-child) {
    border-left: none;
}

.form-input-group > label {
    padding: 0.375rem 0.75rem;
    color: var(--color-form-label-text);
    background-color: var(--color-form-label-bg);
}

.form-input-group > input {
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
    font-size: 1rem;
    font-weight: normal;
    line-height: 1.5;
    padding: 0.375rem 0.75rem;
    color: var(--color-form-text);
}

.form-input-group > textarea {
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
    font-size: 1rem;
    font-weight: normal;
    line-height: 1.5;
    padding: 0.375rem 0.75rem;
    color: var(--color-form-text);
    resize: vertical;
    min-height: calc(1.5rem + 0.75rem + 2px);
}

.form-input-group > .form-radio-group {
    flex: 1 1 auto;
}

.form-radio-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.form-radio-group-item {
    display: flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    color: var(--color-form-text);
}

.form-radio-group-item input[type="radio"] {
    width: 1rem;
    height: 1rem;
}

.form-radio-group-item > *:not(:first-child) {
    margin-left: 0.375rem;
}

/*******************************************************************************
 * 错误提示框
 ******************************************************************************/

.alert {
    display: flex;
    flex-direction: column;
    background-color: var(--color-alert-bg);
    padding: 1rem;
    border: 1px solid var(--color-alert-border);
}

.alert > *:not(:first-child) {
    margin-top: 0.75rem;
}

/*******************************************************************************
 * 分页导航栏
 ******************************************************************************/

.pagination {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.pagination > ul {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.pagination li:not(:first-child) {
    margin-left: 0.75rem;
}

.pagination a.active {
    text-decoration: underline;
    text-decoration-thickness: 2px;
}

.pagination a.disabled {
    pointer-events: none;
    color: var(--color-pagination-link-disabled);
}

/*******************************************************************************
 * 文章列表
 ******************************************************************************/

.article-list {
    display: flex;
    flex-direction: column;
    margin-top: 1rem;
    gap: 0.5rem;
    line-height: 1.5;
}

.article-list > li {
    display: flex;
    align-items: center;
}

.article-list .article-lock {
    height: 1rem;
    margin-right: 0.5rem;
}

.article-list .article-title {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.article-list .article-date {
    font-size: 0.875rem;
    white-space: nowrap;
    flex: 1 1 auto;
    text-align: right;
    color: var(--color-article-list-date);
}

.article-list .a-hidden {
    --color-link: var(--color-article-hidden-link);
    --color-link-hover: var(--color-article-hidden-link-hover);
    --color-link-active: var(--color-article-hidden-link-active);
}

.article-list .a-disabled {
    --color-link: var(--color-article-disabled-link);
    --color-link-hover: var(--color-article-disabled-link-hover);
    --color-link-active: var(--color-article-disabled-link-active);
}

.article-list > li > a.a-published:visited {
    color: var(--color-link-visited);
    background-color: transparent;
    -webkit-tap-highlight-color: transparent;
}

.article-list > li > a.a-published:visited:hover {
    color: var(--color-link-visited-hover);
    background-color: transparent;
    -webkit-tap-highlight-color: transparent;
}

.article-list > li > a.a-published:visited:active {
    color: var(--color-link-visited-active);
    background-color: transparent;
    -webkit-tap-highlight-color: transparent;
}

/*******************************************************************************
 * 文章详情
 ******************************************************************************/

.article {
    display: flex;
    flex-direction: column;
}

.article .article-header {
    display: flex;
    flex-direction: column;
    margin-bottom: 2.25rem;
}

.article .article-title {
    word-break: break-all;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-md-h-border);
    font-weight: normal;
    font-size: 2rem;
    color: var(--color-md-title);
}

.article .article-metadata {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--color-md-metadata);
}

.article .article-metadata > * {
    white-space: nowrap;
}

.article .article-metadata-item {
    display: flex;
    align-items: center;
}

.article .article-metadata-item img {
    height: 0.875rem;
    margin-right: 0.25rem;
    vertical-align: middle;
}

.article .article-content {
    word-break: break-all;
}

/*******************************************************************************
 * 文章附件
 ******************************************************************************/

.attachment-container {
    display: flex;
    flex-direction: column;
    margin-top: 2.25rem;
}

.attachment-list {
    display: flex;
    flex-direction: column;
    margin-top: 1rem;
    gap: 1rem;
    max-width: 100%;
    font-size: 0.875rem;
}

.attachment-item {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
}

.attachment-name {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.attachment-exts {
    display: flex;
    gap: 0.75rem;
}

.attachment-size {
    white-space: nowrap;
}

.attachment-download-btn {
    white-space: nowrap;
}

/*******************************************************************************
 * 文章解锁页面
 ******************************************************************************/

.article-unlock {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}

.article-unlock .article-title {
    word-break: break-all;
    text-align: center;
    font-weight: normal;
    font-size: 2rem;
    color: var(--color-md-title);
}

/*******************************************************************************
 * 模态框
 ******************************************************************************/

.modal {
    z-index: 1000;
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    background-color: var(--color-modal-overlay);
}

.modal-dialog {
    display: flex;
    flex-direction: column;
    background-color: var(--color-modal-bg);
    margin: 1.75rem auto;
    max-width: var(--layout-modal-max-width);
    width: var(--layout-modal-width);
}

.modal-header {
    font-size: 1.25rem;
    font-weight: normal;
    padding: 1rem;
}

.modal-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    padding: 1rem;
}

.modal-footer > *:not(:first-child) {
    margin-left: 0.375rem;
}

.modal-main {
    padding: 1rem;
    border-top: 1px solid var(--color-modal-border);
    border-bottom: 1px solid var(--color-modal-border);
    color: var(--color-text);
}

/*******************************************************************************
 * 模态框动画
 ******************************************************************************/

.modal.show {
    animation: modal-fade-in 0.3s ease forwards;
}

.modal.hide {
    animation: modal-fade-out 0.3s ease forwards;
}

.modal.show .modal-dialog {
    animation: modal-dialog-fade-in 0.3s ease forwards;
}

.modal.hide .modal-dialog {
    animation: modal-dialog-fade-out 0.3s ease forwards;
}

@keyframes modal-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes modal-fade-out {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

@keyframes modal-dialog-fade-in {
    from {
        transform: translateY(-8rem);
    }

    to {
        transform: translateY(0);
    }
}

@keyframes modal-dialog-fade-out {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(-8rem);
    }
}

/*******************************************************************************
 * 会话信息
 ******************************************************************************/

.session-info {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
    word-break: break-all;
    line-height: 1.5;
}

.session-info > *:not(:first-child) {
    margin-top: 0.5rem;
}

.session-info-item > span:first-child::after {
    content: ":";
    padding: 0 0.375rem;
}

/*******************************************************************************
 * 消息提示框
 ******************************************************************************/

.tips {
    z-index: 2000;
    display: flex;
    flex-direction: column;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
}

.tips > *:last-child {
    margin-bottom: 1.75rem;
}

.tips > * {
    margin: 0 auto 0.75rem auto;
}

.tips-item {
    color: var(--color-tips-item-text);
    background-color: var(--color-tips-item-bg);
    border: 1px solid var(--color-tips-item-border);
    border-radius: 4px;
    padding: 0.5rem 1.25rem;
    max-width: var(--layout-tips-item-max-width);
    width: var(--layout-tips-item-width);
}

/*******************************************************************************
 * 消息提示框动画
 ******************************************************************************/

.tips-item.show {
    animation: tips-item-fade-in 0.3s ease forwards;
}

.tips-item.hide {
    animation: tips-item-fade-out 0.3s ease forwards;
}

@keyframes tips-item-fade-in {
    from {
        transform: translateY(8rem);
    }

    to {
        transform: translateY(0);
    }
}

@keyframes tips-item-fade-out {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

/*******************************************************************************
 * 分区线
 ******************************************************************************/

.divider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.divider-line-l {
    width: 2rem;
    height: 1px;
    border-top: 1px solid var(--color-divider-line-border);
}

.divider-line-r {
    flex: 1;
    height: 1px;
    border-top: 1px solid var(--color-divider-line-border);
}

.divider-text {
    white-space: nowrap;
    font-size: 1rem;
    color: var(--color-divider-line-text);
}