/*
 * Moonlight Theme — 高仿月光博客 v1.4.0
 * Content: 760px | Sidebar: 300px | Container: 1080px
 */

/* ============================================================
   1. Reset & Base
   ============================================================ */
html,body,div,span,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,img,ol,ul,li,form,label,table,tr,th,td {
    border:0; margin:0; padding:0; vertical-align:baseline;
}
body {
    background: var(--ml-bg);
    font-family: "Microsoft YaHei","Lucida Sans Unicode","Lucida Grande",sans-serif;
    font-size: 15px;
    line-height: 2em;
    color: var(--ml-text);
    -webkit-text-size-adjust: 100%;
    transition: background 0.3s, color 0.3s;
}
a { text-decoration: none; color: var(--ml-link); transition: color 0.2s; }
a:hover { color: var(--ml-link); opacity: 0.8; }
img { max-width: 100%; height: auto; }
ol,ul { list-style: none; }
.clear { clear:both; display:block; overflow:hidden; visibility:hidden; width:0; height:0; }
.clearfix:after { content:''; display:table; clear:both; }
.hidden { display:none; }

/* ============================================================
   2. Container & Layout (Flexbox — 防御内容溢出导致 sidebar 掉落)
   ============================================================ */
#wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0;
}
/* 主布局：flexbox，content 弹性伸缩 + sidebar 固定宽度 */
/* 760 + 20(gap) + 300 = 1080 */
#main {
    display: flex;
    gap: 20px;
    padding: 0 0 20px;
}
#main .content {
    flex: 1;                 /* 自适应填充剩余空间 */
    min-width: 0;            /* ★ 关键：允许 flex 子元素收缩，防止内容溢出推走 sidebar */
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
}
#main .sidebar {
    flex: 0 0 300px;         /* 固定 300px 不伸缩 */
    min-width: 0;
    max-width: 100%;
}
/* 侧边栏对调 */
#main.sidebar-left {
    flex-direction: row-reverse;
}
/* 清除 float clearfix 伪元素对 flex 容器的干扰 */
#main.clearfix::after { display: none; }
/* 无侧边栏全宽模板 */
body.no-sidebar #main .sidebar { display: none; }
body.no-sidebar #main .content {
    flex: 1 1 100%;
    min-width: 0;
}

/* ============================================================
   3. Header
   ============================================================ */
.header-wrap {
    position: relative;
    background: var(--ml-box);
    border-bottom: 1px solid var(--ml-border);
    box-shadow: var(--ml-shadow);
}
#header {
    padding: 25px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
#logo h2 { font-size: 28px; font-weight: bold; }
#logo h2 a { color: var(--ml-text); }
#logo h2 a:hover { color: var(--ml-link); }

/* 头部右上角工具按钮 */
.page-tools {
    position: absolute;
    top: 5px;
    right: 25px;
    z-index: 100;
    display: flex;
    gap: 6px;
}

/* Navigation — 独立固定悬浮 */
#navigation {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--ml-nav-bg);
    margin-bottom: 25px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    min-height: 38px; /* 确保有足够高度放置 hamburger 按钮 */
}
[data-theme='dark'] #navigation {
    box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}
.sf-menu {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
    list-style: none;
}
.sf-menu li { position: relative; }
.sf-menu a {
    display: block;
    padding: 10px 16px;
    color: var(--ml-nav-text);
    font-size: 14px;
    white-space: nowrap;
    position: relative;
    transition: background 0.35s ease, color 0.35s ease;
}
/* 菜单项悬停：渐变过渡 */
.sf-menu a:hover {
    background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0.08));
    color: #fff;
}
/* 当前选中菜单项 */
.sf-menu .current-menu-item a {
    background: linear-gradient(135deg, rgba(255,255,255,0.22), rgba(255,255,255,0.1));
    color: #fff;
    font-weight: bold;
}
/* 菜单项底部指示条 */
.sf-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: rgba(255,255,255,0.8);
    border-radius: 3px 3px 0 0;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}
.sf-menu a:hover::after,
.sf-menu .current-menu-item a::after {
    width: 70%;
}

/* Mobile nav toggle — 三星条按钮，放在导航栏内部 */
.navbar-toggle {
    display: none;
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    padding: 8px 9px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 4px;
    cursor: pointer;
    z-index: 1001;
}
.navbar-toggle .icon-bar {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 1px;
    background-color: var(--ml-nav-text);
}
.navbar-toggle .icon-bar + .icon-bar { margin-top: 4px; }

/* ============================================================
   4. Nav Search — 导航栏下方搜索模块
   ============================================================ */
.nav-search {
    max-width: 1080px;
    margin: 0 auto 20px;
    padding: 0;
}
.nav-search form {
    display: flex;
    gap: 0;
    background: var(--ml-box);
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius);
    box-shadow: var(--ml-shadow);
    overflow: hidden;
}
.nav-search input[type="text"] {
    flex: 1;
    padding: 12px 18px;
    border: none;
    font-size: 15px;
    background: var(--ml-box);
    color: var(--ml-text);
    font-family: inherit;
    outline: none;
}
.nav-search input[type="text"]::placeholder {
    color: var(--ml-meta);
}
.nav-search button {
    padding: 12px 24px;
    border: none;
    background: var(--ml-nav-bg);
    color: var(--ml-nav-text);
    font-size: 16px;
    cursor: pointer;
    transition: opacity 0.25s, background 0.25s;
    font-family: inherit;
}
.nav-search button:hover {
    opacity: 0.85;
    background: var(--ml-link);
}

@media (max-width: 768px) {
    .nav-search {
        padding: 0 10px;
        margin-bottom: 14px;
    }
    .nav-search input[type="text"] {
        padding: 10px 14px;
        font-size: 14px;
    }
    .nav-search button {
        padding: 10px 18px;
        font-size: 15px;
    }
}

/* ============================================================
   5. Toolbar — 右上角主题切换 + 侧边栏对调
   ============================================================ */
.toolbar-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--ml-border);
    border-radius: 6px;
    background: var(--ml-box);
    cursor: pointer;
    font-size: 16px;
    line-height: 30px;
    text-align: center;
    transition: all 0.2s;
    color: var(--ml-text);
    padding: 0;
}
.toolbar-btn:hover {
    border-color: var(--ml-link);
    color: var(--ml-link);
}

/* ============================================================
   6. Content — 文章列表/文章页
   ============================================================ */
.entry {
    background: var(--ml-box);
    border: 1px solid var(--ml-border);
    border-bottom: 2px solid #00C5CD;
    border-radius: var(--ml-radius);
    padding: 24px 28px;
    margin-bottom: 18px;
    box-shadow: var(--ml-shadow);
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.entry:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1), 0 4px 16px rgba(0,0,0,0.06);
    transform: translateY(-1px);
}
[data-theme='dark'] .entry:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.3), 0 4px 18px rgba(0,0,0,0.25);
}

.entry h1 { font-size: 20px; margin-bottom: 10px; }
.post-title { color: var(--ml-title); font-weight: bold; }
.post-title:hover { color: var(--ml-link); }
.post-title-single { color: var(--ml-title); font-size: 22px !important; }

.post-meta {
    font-size: 13px;
    color: var(--ml-meta);
    margin-bottom: 14px;
    line-height: 1.8;
}
.post-meta a { color: var(--ml-meta); }
.post-meta a:hover { color: var(--ml-link); }

.entry-content {
    font-size: 15px;
    line-height: 2;
    overflow: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.entry-content p { margin-bottom: 14px; }
.entry-content h2 { font-size: 18px; margin: 20px 0 10px; color: var(--ml-title); }
.entry-content h3 { font-size: 16px; margin: 16px 0 8px; color: var(--ml-title); }
.entry-content ul, .entry-content ol { margin: 10px 0 10px 25px; }
.entry-content ul { list-style: disc; }
.entry-content ol { list-style: decimal; }
/* ===== 内容溢出防护 =====
 * 确保文章/页面内任何元素都不会撑破容器导致页面错位
 */
.entry-content img,
.entry-content video,
.entry-content iframe,
.entry-content embed,
.entry-content object,
.entry-content svg {
    max-width: 100%;
    height: auto;
}
.entry-content figure {
    max-width: 100%;
    margin: 15px 0;
}
.entry-content figure img {
    max-width: 100%;
    height: auto;
}
/* 表格溢出防护 */
.entry-content table {
    max-width: 100%;
    border-collapse: collapse;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.entry-content table th,
.entry-content table td {
    padding: 8px 12px;
    border: 1px solid var(--ml-border);
    word-break: break-all;
}
/* 代码块不溢出 */
.entry-content pre {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: pre-wrap;
    word-wrap: break-word;
}
.entry-content code {
    word-break: break-all;
}
/* 长链接/无空格文本不溢出 */
.entry-content a {
    word-break: break-all;
}
/* 子元素统一 box-sizing */
.entry-content *,
.entry-content *::before,
.entry-content *::after {
    box-sizing: border-box;
}
.entry-content blockquote {
    background: var(--ml-sidebar-title-bg);
    margin: 15px 10px 10px;
    padding: 12px 16px;
    border-left: 4px solid var(--ml-link);
    border-radius: 0 var(--ml-radius) var(--ml-radius) 0;
    color: var(--ml-text);
    font-style: italic;
}
.entry-content pre, .entry-content code {
    background: var(--ml-sidebar-title-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 13px;
    font-family: Consolas, Monaco, monospace;
}
.entry-content pre { padding: 12px; overflow-x: auto; line-height: 1.5; }

/* Thumbnail — 特色图片 80×80 右浮 */
img.thumb {
    float: right;
    margin: 0 0 14px 14px;
    width: 80px;
    height: 80px;
    object-fit: cover;
}
.thumb-single {
    margin-top: 4px;
}

/* 面包屑导航 */
.breadcrumb {
    font-size: 13px;
    color: var(--ml-meta);
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--ml-border);
}
.breadcrumb a { color: var(--ml-link); }
.breadcrumb a:hover { text-decoration: underline; }

/* Tags & Nav */
.post-tags {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px dashed var(--ml-border);
    font-size: 13px;
    color: var(--ml-meta);
}
.post-tags a { color: var(--ml-link); }
.post-nav {
    margin-top: 20px;
    padding-top: 14px;
    border-top: 1px solid var(--ml-border);
    font-size: 14px;
}
.post-nav .prev { float: left; }
.post-nav .next { float: right; }

/* Comments — 自定义评论区样式 */
.comments-area {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--ml-border);
}

/* 评论标题 */
.comments-title {
    font-size: 17px;
    margin-bottom: 18px;
    color: var(--ml-title);
    font-weight: bold;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--ml-border);
}

/* 评论列表 */
.comment-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.comment-list .comment {
    margin-bottom: 0;
}
.comment-list .children {
    list-style: none;
    margin: 0 0 0 52px;
    padding: 0;
}

/* 单条评论卡片 */
.comment-body {
    display: flex;
    gap: 14px;
    padding: 16px 0;
    border-bottom: 1px dotted var(--ml-border);
}
.comment-list > .comment:last-child > .comment-body {
    border-bottom: none;
}

/* 头像 */
.comment-avatar {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
}
.avatar-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--ml-border);
}

/* 评论内容容器 */
.comment-content {
    flex: 1;
    min-width: 0;
}

/* 评论头部：作者 + 日期 + 回复链接 */
.comment-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 8px;
    padding: 0;
}
.comment-author {
    font-weight: bold;
    font-size: 14px;
    color: var(--ml-title);
}
.comment-author a {
    color: var(--ml-title);
}
.comment-author a:hover {
    color: var(--ml-link);
}
.comment-meta {
    font-size: 12px;
    color: var(--ml-meta);
}
.comment-meta a {
    color: var(--ml-meta);
}
.comment-meta a:hover {
    color: var(--ml-link);
}

/* 回复链接 */
.comment-reply a {
    font-size: 12px;
    color: var(--ml-link);
    margin-left: auto;
    padding: 2px 8px;
    border: 1px solid var(--ml-border);
    border-radius: 3px;
    transition: background 0.2s, color 0.2s;
}
.comment-reply a:hover {
    background: var(--ml-nav-bg);
    color: var(--ml-nav-text);
    border-color: var(--ml-nav-bg);
}

/* 评论文本 */
.comment-text {
    font-size: 14px;
    line-height: 1.8;
    color: var(--ml-text);
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.comment-text p {
    margin-bottom: 8px;
}
.comment-text p:last-child {
    margin-bottom: 0;
}
.comment-awaiting {
    display: block;
    font-size: 13px;
    color: #e67e22;
    margin-bottom: 8px;
    font-style: normal;
}

/* 评论分页导航 */
.comment-nav {
    margin: 16px 0;
    padding: 10px 0;
    border-top: 1px dotted var(--ml-border);
    font-size: 14px;
    overflow: hidden;
}
.comment-nav .prev { float: left; }
.comment-nav .next { float: right; }
.comment-nav a { color: var(--ml-link); }

/* 评论已关闭 */
.comments-closed {
    font-size: 14px;
    color: var(--ml-meta);
    padding: 14px 0;
}

/* ===== 评论表单 ===== */
.comment-reply-title {
    font-size: 17px;
    margin: 20px 0 12px;
    color: var(--ml-title);
    font-weight: bold;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--ml-border);
}
.comment-reply-title small {
    font-size: 13px;
    font-weight: normal;
}
.comment-reply-title small a {
    color: var(--ml-meta);
    margin-left: 8px;
}
.comment-reply-title small a:hover {
    color: var(--ml-link);
}

/* 表单注释 */
.comment-notes {
    font-size: 13px;
    color: var(--ml-meta);
    margin-bottom: 14px;
}
.required { color: #e74c3c; }

/* 已登录提示 */
.logged-in-as {
    font-size: 13px;
    color: var(--ml-meta);
    margin-bottom: 14px;
}
.logged-in-as a { color: var(--ml-link); }

/* 评论输入框 */
.comment-form-comment textarea {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 12px 14px;
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius);
    font-size: 14px;
    line-height: 1.7;
    background: var(--ml-box);
    color: var(--ml-text);
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.2s;
}
.comment-form-comment textarea:focus {
    outline: none;
    border-color: var(--ml-link);
    box-shadow: 0 0 0 2px rgba(43, 95, 163, 0.12);
}

/* 昵称/邮箱/网址输入行 */
.comment-form-author,
.comment-form-email,
.comment-form-url {
    display: inline-block;
    margin-bottom: 10px;
    margin-right: 8px;
}
.comment-form-author input,
.comment-form-email input,
.comment-form-url input {
    padding: 8px 12px;
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius);
    font-size: 14px;
    background: var(--ml-box);
    color: var(--ml-text);
    font-family: inherit;
    width: 200px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}
.comment-form-author input:focus,
.comment-form-email input:focus,
.comment-form-url input:focus {
    outline: none;
    border-color: var(--ml-link);
    box-shadow: 0 0 0 2px rgba(43, 95, 163, 0.12);
}

/* 提交按钮 */
.submit-btn {
    display: inline-block;
    padding: 10px 28px;
    background: var(--ml-nav-bg);
    color: var(--ml-nav-text);
    border: none;
    border-radius: var(--ml-radius);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.2s;
}
.submit-btn:hover {
    opacity: 0.88;
}

/* Pagination */
.pagination {
    text-align: center;
    margin: 20px 0;
}
.pagination .page-numbers {
    display: inline-block;
    padding: 4px 12px;
    margin: 0 3px;
    border: 1px solid var(--ml-border);
    border-radius: 3px;
    background: var(--ml-box);
    color: var(--ml-text);
    font-size: 14px;
}
.pagination .current {
    background: var(--ml-nav-bg);
    color: var(--ml-nav-text);
    border-color: var(--ml-nav-bg);
}
.pagination a:hover { background: var(--ml-sidebar-title-bg); }

/* In-article page links — 长文章分页导航 */
.page-links {
    text-align: center;
    margin: 24px 0 10px;
    padding-top: 18px;
    border-top: 1px solid var(--ml-border);
    clear: both;
}
.page-links-title {
    font-size: 14px;
    color: var(--ml-meta);
    margin-right: 8px;
    vertical-align: middle;
}
.page-links .page-link {
    display: inline-block;
    min-width: 28px;
    padding: 4px 8px;
    margin: 0 2px;
    border: 1px solid var(--ml-border);
    border-radius: 3px;
    background: var(--ml-box);
    color: var(--ml-text);
    font-size: 13px;
    text-align: center;
    vertical-align: middle;
    transition: background 0.2s, color 0.2s;
}
.page-links .page-link:hover {
    background: var(--ml-link);
    color: #fff;
    border-color: var(--ml-link);
}
.page-links > a:first-of-type .page-link,
.page-links > a:last-of-type .page-link {
    /* 首/末页链接可稍作区分 */
}
.page-links > span:not(.page-links-title) .page-link {
    background: var(--ml-nav-bg);
    color: var(--ml-nav-text);
    border-color: var(--ml-nav-bg);
    font-weight: bold;
}
/* 深色模式 */
[data-theme='dark'] .page-links .page-link:hover {
    background: var(--ml-link);
    color: #fff;
}

/* Archive header */
.archive-header { padding: 16px 24px; }
.archive-header h1 { font-size: 18px; }
.archive-desc { font-size: 13px; color: var(--ml-meta); margin-top: 6px; }

/* ============================================================
   7. Sidebar
   ============================================================ */
.sidebar-box {
    background: var(--ml-box);
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius);
    margin-bottom: 10px;
    padding: 0;
    box-shadow: var(--ml-shadow);
    overflow: hidden;
    transition: box-shadow 0.3s, transform 0.3s;
}
.sidebar-box:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1), 0 4px 16px rgba(0,0,0,0.06);
    transform: translateY(-1px);
}
[data-theme='dark'] .sidebar-box:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.3), 0 4px 18px rgba(0,0,0,0.25);
}
.sidebar-box h4 {
    font-size: 15px;
    font-weight: bold;
    padding: 10px 14px;
    background: var(--ml-sidebar-title-bg);
    border-bottom: 1px solid var(--ml-border);
    border-left: 4px solid var(--ml-sidebar-title-border);
    color: var(--ml-title);
}
.sidebar-box ul {
    padding: 8px 14px;
}
.sidebar-box li {
    padding: 5px 0;
    border-bottom: 1px dotted var(--ml-border);
    font-size: 14px;
    line-height: 1.6;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sidebar-box li:last-child { border-bottom: none; }
.sidebar-box li a { color: var(--ml-text); }
.sidebar-box li a:hover { color: var(--ml-link); }

/* 侧边栏搜索模块 */
.sidebar-search-box {
    padding: 0;
}
.sidebar-search-box form {
    display: flex;
    gap: 0;
    padding: 10px 12px;
}
.sidebar-search-box input[type="text"] {
    flex: 1;
    min-width: 0;
    padding: 8px 12px;
    border: 1px solid var(--ml-border);
    border-right: none;
    border-radius: var(--ml-radius) 0 0 var(--ml-radius);
    font-size: 14px;
    background: var(--ml-box);
    color: var(--ml-text);
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}
.sidebar-search-box input[type="text"]:focus {
    border-color: var(--ml-link);
}
.sidebar-search-box input[type="text"]::placeholder {
    color: var(--ml-meta);
}
.sidebar-search-box button {
    padding: 8px 16px;
    border: 1px solid var(--ml-nav-bg);
    border-radius: 0 var(--ml-radius) var(--ml-radius) 0;
    background: var(--ml-nav-bg);
    color: var(--ml-nav-text);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    white-space: nowrap;
    transition: opacity 0.2s;
}
.sidebar-search-box button:hover {
    opacity: 0.85;
}

/* ============================================================
   7.5. Post Nav Arrows — 单篇文章翻页浮动箭头
   圆形半透明背景 + CSS 线条箭头（边框旋转绘制）
   ============================================================ */
.post-nav-arrow {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--ml-nav-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease, transform 0.3s ease, background 0.25s;
    box-shadow: 0 2px 14px rgba(0,0,0,0.18);
    user-select: none;
}
/* 线条箭头 — 两条边框旋转 45° 形成的 < 和 > */
.post-nav-arrow::after {
    content: '';
    display: block;
    width: 11px;
    height: 11px;
    border: 0 solid var(--ml-nav-text);
    transition: border-color 0.25s;
}
.post-nav-arrow-left::after {
    border-bottom-width: 2px;
    border-left-width: 2px;
    transform: rotate(45deg);
    margin-right: 3px;  /* 视觉居中微调 */
}
.post-nav-arrow-right::after {
    border-top-width: 2px;
    border-right-width: 2px;
    transform: rotate(45deg);
    margin-left: 3px;
}
.post-nav-arrow.visible {
    opacity: 0.65;
    pointer-events: auto;
}
.post-nav-arrow:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.12);
    background: var(--ml-link);
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}
.post-nav-arrow-left {
    left: 20px;
}
.post-nav-arrow-right {
    right: 20px;
}

/* 宽屏 — 箭头放在容器外侧空白区域 */
@media (min-width: 1200px) {
    .post-nav-arrow-left {
        left: calc((100vw - 1080px) / 2 - 70px);
    }
    .post-nav-arrow-right {
        right: calc((100vw - 1080px) / 2 - 70px);
    }
}

/* 手机端缩小箭头，贴近边缘 */
@media (max-width: 768px) {
    .post-nav-arrow {
        width: 38px;
        height: 38px;
    }
    .post-nav-arrow::after {
        width: 9px;
        height: 9px;
    }
    .post-nav-arrow-left {
        left: 6px;
    }
    .post-nav-arrow-right {
        right: 6px;
    }
}

/* ============================================================
   8. Footer
   ============================================================ */
#footer {
    text-align: center;
    padding: 24px 0;
    margin-top: 20px;
    border-top: 1px solid var(--ml-border);
    font-size: 13px;
    color: var(--ml-meta);
    background: var(--ml-box);
}
#footer a { color: var(--ml-link); }

/* ============================================================
   9. Responsive
   ============================================================ */
@media (max-width: 1080px) {
    #main .content { flex: 1 1 65%; }
    #main .sidebar { flex: 0 1 32%; }
}
@media (max-width: 768px) {
    #main { flex-direction: column; gap: 0; }
    #main .content, #main .sidebar { flex: 1 1 100%; width: 100%; margin: 0 0 20px; }
    #main.sidebar-left { flex-direction: column; }
    /* 移动端菜单：始终可见，横向滚动 */
    .sf-menu {
        display: flex !important;
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        white-space: nowrap;
        padding: 0 4px;
    }
    .sf-menu::-webkit-scrollbar { display: none; }
    .sf-menu li { flex-shrink: 0; width: auto; }
    .sf-menu a { padding: 10px 16px; white-space: nowrap; }
    /* 隐藏汉堡按钮 */
    .navbar-toggle { display: none !important; }
    #menu-toggle { display: none; }
    /* 移动端隐藏侧边栏对调按钮 */
    #swap-sidebar { display: none; }
    .entry { padding: 16px; }
    #logo h2 { font-size: 22px; }
    img.thumb { width: 60px; height: 60px; }

    /* 移动端评论适配 */
    .comment-body { gap: 10px; padding: 14px 0; }
    .comment-avatar { width: 36px; height: 36px; }
    .avatar-img { width: 36px; height: 36px; }
    .comment-list .children { margin-left: 24px; }
    .comment-header { gap: 8px; }
    .comment-form-author input,
    .comment-form-email input,
    .comment-form-url input { width: 100%; }
    .comment-form-author,
    .comment-form-email,
    .comment-form-url { display: block; margin-right: 0; width: 100%; }
    .comment-reply a { margin-left: 0; }

    /* 移动端单篇文章 — 翻页链接卡片化 */
    .post-nav {
        display: flex;
        flex-direction: column;
        gap: 10px;
        border-top: none;
        padding-top: 0;
        margin-top: 24px;
    }
    .post-nav .prev,
    .post-nav .next {
        float: none;
        display: block;
        padding: 14px 16px;
        background: var(--ml-box);
        border: 1px solid var(--ml-border);
        border-radius: var(--ml-radius);
        font-size: 15px;
        line-height: 1.5;
        box-shadow: var(--ml-shadow);
    }
    .post-nav .prev {
        border-left: 4px solid var(--ml-nav-bg);
    }
    .post-nav .next {
        border-right: 4px solid var(--ml-nav-bg);
        text-align: right;
    }
    .post-nav .prev a,
    .post-nav .next a {
        color: var(--ml-text);
        text-decoration: none;
    }

    /* 移动端列表页 + 单篇文章页隐藏侧边栏全部模块 */
    .home .sidebar,
    .archive .sidebar,
    .search .sidebar,
    .blog .sidebar,
    .single .sidebar {
        display: none;
    }
}
@media (min-width: 769px) {
    .navbar-toggle { display: none; }
    .sf-menu { display: flex !important; }
    /* PC 端隐藏导航下方搜索模块，改用侧边栏搜索 */
    .nav-search { display: none; }
}

/* ============================================================
   10. Dark Mode Override (Deep Blue)
   ============================================================ */
[data-theme='dark'] .entry-content blockquote { background: rgba(255,255,255,0.03); }
[data-theme='dark'] .entry-content pre,
[data-theme='dark'] .entry-content code { background: rgba(255,255,255,0.05); }
[data-theme='dark'] .sidebar-box h4 { border-left-color: var(--ml-sidebar-title-border); }

/* 深色模式 — 评论区域 */
[data-theme='dark'] .comment-body { border-bottom-color: rgba(255,255,255,0.06); }
[data-theme='dark'] .comments-title,
[data-theme='dark'] .comment-reply-title { border-bottom-color: rgba(255,255,255,0.08); }
[data-theme='dark'] .comment-form-comment textarea:focus,
[data-theme='dark'] .comment-form-author input:focus,
[data-theme='dark'] .comment-form-email input:focus,
[data-theme='dark'] .comment-form-url input:focus {
    box-shadow: 0 0 0 2px rgba(109, 173, 240, 0.18);
}
[data-theme='dark'] .comment-reply a {
    border-color: rgba(255,255,255,0.12);
}
[data-theme='dark'] .comment-reply a:hover {
    background: var(--ml-nav-bg);
    color: var(--ml-nav-text);
}
[data-theme='dark'] .comment-nav { border-top-color: rgba(255,255,255,0.06); }