/* =============================================================
   百宇云博客 — 全站样式(轻量,无第三方框架)
   观感参考 Acecv 模板:白吸顶导航 / 浅灰 hero / 青蓝强调 / 区块交替
   ============================================================= */

:root {
    --accent: #1677ff;
    --accent-deep: #0958d9;
    --heading: #515769;
    --body: #5a5f66;
    --muted: #a6a7aa;
    --sky: #fafcff;
    --line: #edf0f2;
    --white: #ffffff;
    --shadow: 0 2px 14px rgba(20, 30, 50, 0.06);
    --radius: 8px;
    --header-h: 72px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}

/* ===== Reset & Base ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    overflow-y: scroll;
    -webkit-font-smoothing: antialiased;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.8;
    color: var(--body);
    background: var(--white);
    /* 老浏览器兜底：能裁掉横向溢出，但会把 overflow-y 算成 auto，
       body 因此变成滚动容器，后代 position: sticky 全部失效（侧栏吸附不了）。
       现代浏览器用下面的 clip —— 同样裁剪，但不会变成滚动容器。 */
    overflow-x: hidden;
    overflow-x: clip;
}

/* 页脚贴底：内容不足一屏时固定在视口底部 */
#main { flex: 1 0 auto; }
.site-footer { flex-shrink: 0; }

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-deep); }
ul, ol { padding-left: 1.4em; }

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.35;
    color: var(--heading);
    margin: 0 0 0.6em;
}

::selection { color: #fff; background: var(--accent); }

.container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 非首页需给吸顶导航让位(首页 hero 自带顶距) */
body:not(.page-home) { padding-top: var(--header-h); }

/* 跳转正文 */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 200;
}
.skip-link:focus {
    left: 0;
    top: var(--header-h);
    background: var(--accent);
    color: #fff;
    padding: 8px 16px;
    font-size: 14px;
    border-radius: 0 0 4px 0;
}

/* ===== 导航栏 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: linear-gradient(180deg, #e9f2ff 0%, #f3f8ff 100%);
    border-bottom: 1px solid #dbe7f7;
    box-shadow: 0 1px 6px rgba(20, 30, 50, 0.05);
}

.header-in {
    display: flex;
    align-items: center;
    height: var(--header-h);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--heading);
    font-size: 19px;
    font-weight: 700;
    letter-spacing: 1px;
}
.logo img { width: 34px; height: 34px; }
.logo:hover { color: var(--accent); }

.main-nav {
    display: flex;
    gap: 4px;
    margin-left: auto;
}

.main-nav a {
    position: relative;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--heading);
}
.main-nav a:hover { color: var(--accent); }
.main-nav a.active { color: var(--accent); }
.main-nav a.active:after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.nav-toggle {
    display: none;
    margin-left: auto;
    width: 40px;
    height: 40px;
    border: 0;
    background: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--heading);
    margin: 5px auto;
    transition: all 0.3s ease;
}
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
    background: var(--sky);
    padding: 190px 0 90px;
}
.hero-inner {
    display: flex;
    align-items: center;
    gap: 48px;
}
.hero-info { flex: 1 1 auto; min-width: 0; }
.hero-title {
    font-size: 64px;
    line-height: 1.1;
    color: var(--heading);
    margin: 0 0 16px;
}
.hero-sub {
    font-size: 22px;
    line-height: 1.6;
    color: var(--muted);
    max-width: 560px;
}
.hero-avatar {
    flex: 0 0 auto;
    align-self: flex-end;
}
.hero-avatar img {
    width: auto;
    height: 400px;
    border-radius: 14px;
    box-shadow: 0 24px 60px rgba(20, 30, 50, 0.16);
}

/* ===== 区块通用 ===== */
.sec { padding: 84px 0; }
.sec-sky { background: var(--sky); }
.sec-head { text-align: center; margin-bottom: 48px; }
.sec-head h2 { font-size: 30px; color: var(--heading); margin: 0 0 10px; }
.sec-head p { color: var(--muted); font-size: 15px; }

/* ===== 我的 ===== */
.about-grid {
    display: flex;
    gap: 56px;
    align-items: flex-start;
}
.about-img { flex: 0 0 380px; }
.about-img img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.about-body { flex: 1 1 auto; min-width: 0; }
.about-body h2 { font-size: 26px; }
.about-body > p { color: var(--body); }
.about-btn {
    display: inline-block;
    margin-top: 8px;
    padding: 14px 30px;
    background: #fff;
    color: var(--heading);
    border: 1px solid var(--line);
    border-radius: 30px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}
.about-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.skills { margin-top: 36px; }
.skill { margin-bottom: 22px; }
.skill-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 15px;
    font-weight: 600;
    color: var(--heading);
    margin-bottom: 8px;
}
.progress {
    height: 6px;
    background: #eef0f2;
    border-radius: 3px;
    overflow: hidden;
}
.progress .bar {
    display: block;
    height: 100%;
    width: 0;
    background: var(--accent);
    border-radius: 3px;
    transition: width 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ===== 分类卡 ===== */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.cat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-align: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 32px 20px;
    color: var(--heading);
    transition: all 0.3s ease;
}
.cat-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateY(-3px);
    color: var(--accent);
}
.cat-thumb {
    width: 56px;
    height: 56px;
    object-fit: contain;
}
.cat-name { font-size: 17px; font-weight: 600; line-height: 1.3; }
.cat-count { font-size: 13px; color: var(--muted); }
.cat-go { margin-top: auto; color: var(--accent); font-size: 22px; }

/* ===== 文章卡 ===== */
.post-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.post-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    color: inherit;
    transition: all 0.3s ease;
}
.post-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-3px);
    border-color: rgba(22, 119, 255, 0.5);
}
.post-cover {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: linear-gradient(135deg, #e6f0ff, #c8dcff);
    display: flex;
    align-items: center;
    justify-content: center;
}
.post-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.post-card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    padding: 20px;
}
.post-card-title {
    font-size: 17px;
    line-height: 1.45;
    color: var(--heading);
    margin: 0;
}
.post-card-summary {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.post-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 12.5px;
    color: var(--muted);
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.post-card-link {
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sec-more { text-align: center; margin-top: 40px; }
.sec-more a {
    display: inline-block;
    padding: 12px 28px;
    border: 1px solid var(--accent);
    border-radius: 30px;
    color: var(--accent);
    font-weight: 600;
    transition: all 0.3s ease;
}
.sec-more a:hover { background: var(--accent); color: #fff; }

/* ===== 友链(图在上,文字在下) ===== */
.friends-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.friend-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 28px 20px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    text-align: center;
    transition: all 0.3s ease;
}
.friend-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}
.friend-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
}
.friend-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--heading);
}
.friend-card:hover .friend-name { color: var(--accent); }

/* ===== 标语带 ===== */
.banner {
    background-image: linear-gradient(rgba(20, 32, 54, 0.45), rgba(20, 32, 54, 0.55)),
        url('/static/images/banner.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #fff;
    text-align: center;
    padding: 120px 0;
}
.banner h2 {
    color: #fff;
    font-size: 34px;
    margin: 0 0 14px;
}
.banner-source {
    display: inline-block;
    margin-left: 10px;
    font-size: 0.55em;
    font-weight: 400;
    opacity: 0.75;
}
.banner p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 18px;
    line-height: 1.7;
    max-width: 680px;
    margin: 0 auto;
}

/* ===== 联系 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.contact-item h4 {
    font-size: 14px;
    color: var(--heading);
    margin: 0 0 8px;
}
.contact-item a { color: var(--accent); }
.contact-item a:hover { color: var(--accent-deep); }

/* ===== 页脚 ===== */
.site-footer {
    /* 比头部更浅的淡蓝，形成自上而下的渐变层次 */
    background: #fafcff;
    border-top: 1px solid #e6eefa;
    padding: 48px 0;
    text-align: center;
}
.footer-name {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
    color: var(--heading);
    letter-spacing: 1px;
}
.footer-logo {
    width: 28px;
    height: 28px;
}
.footer-copy { margin-top: 14px; font-size: 13px; color: var(--muted); }
.footer-copy a { color: var(--muted); }
.footer-copy a:hover { color: var(--accent); }

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 0;
    background: var(--heading);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 90;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { background: var(--accent); }

/* =============================================================
   Post 页(三栏 + markdown)
   ============================================================= */
.post-layout {
    /* 正文列与页头之间的间距。两侧栏的吸附位置要对齐正文列顶部（= 页头 + 这个值），
       否则侧栏天然位置比吸附位置靠下，开头会先跟着滚一段才吸住。 */
    --post-pad-top: 40px;
    /* 吸附后距视口底部留的空白 */
    --post-sticky-gap: 20px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--post-pad-top) 24px 80px;
}
/* 左侧目录树：与右侧 TOC 一样吸顶，最高一屏，超出在自身内部滚动 */
.post-sidebar {
    flex: 0 0 240px;
    min-width: 0;
    position: sticky;
    top: calc(var(--header-h) + var(--post-pad-top));
    max-height: calc(100vh - var(--header-h) - var(--post-pad-top) - var(--post-sticky-gap));
    overflow: auto;
}
.post-content {
    flex: 1 1 auto;
    min-width: 0;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 32px 40px 40px;
}
.post-title {
    font-size: 26px;
    color: var(--heading);
    margin: 0 0 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
}
.post-toc {
    flex: 0 0 220px;
    min-width: 0;
    position: sticky;
    top: calc(var(--header-h) + var(--post-pad-top));
    max-height: calc(100vh - var(--header-h) - var(--post-pad-top) - var(--post-sticky-gap));
    overflow: auto;
}

/* 分类树 */
.sidebar-header h3,
.toc-header h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--heading);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 12px;
}
.sidebar-nav .treeview { margin-bottom: 2px; }
.treeview-folder {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--heading);
    font-weight: 600;
    font-size: 14px;
    padding: 8px 10px;
    border-radius: 4px;
    cursor: pointer;
}
.treeview-folder:hover { background: var(--sky); color: var(--accent); }
.tree-arrow { transition: transform 0.2s ease; flex: 0 0 auto; }
.treeview.menu-open > a .tree-arrow { transform: rotate(90deg); }
.treeview-menu {
    display: none;
    list-style: none;
    margin: 0;
    padding: 0 0 0 20px;
}
.treeview.menu-open > .treeview-menu { display: block; }
.treeview-menu a {
    display: block;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.5;
    padding: 5px 10px;
    border-radius: 4px;
}
.treeview-menu a:hover { color: var(--accent); background: var(--sky); }
.treeview-menu a.active { color: var(--accent); font-weight: 600; }

/* markdown 正文 */
.markdown-body {
    color: var(--body);
    font-size: 15px;
    line-height: 1.8;
    word-wrap: break-word;
}
.markdown-body h1, .markdown-body h2, .markdown-body h3,
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
    color: var(--heading);
    margin: 1.6em 0 0.6em;
}
.markdown-body h1 { font-size: 26px; }
.markdown-body h2 { font-size: 22px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.markdown-body h3 { font-size: 18px; }
.markdown-body h4, .markdown-body h5, .markdown-body h6 { font-size: 16px; }
.markdown-body p { margin: 0 0 1em; }
.markdown-body a { color: var(--accent); text-decoration: underline; }
.markdown-body a:hover { color: var(--accent-deep); }
.markdown-body ul, .markdown-body ol { margin: 0 0 1em; }
.markdown-body li { margin: 4px 0; }
.markdown-body img { max-width: 100%; border: 1px solid var(--line); border-radius: 4px; }
.markdown-body blockquote {
    margin: 1em 0;
    padding: 10px 16px;
    background: var(--sky);
    border-left: 3px solid var(--accent);
    color: var(--muted);
}
.markdown-body blockquote p:last-child { margin-bottom: 0; }
.markdown-body code {
    font-family: Consolas, Menlo, Monaco, 'Courier New', monospace;
    font-size: 0.9em;
    background: #f0f1f3;
    color: var(--heading);
    padding: 2px 5px;
    border-radius: 3px;
}
.markdown-body pre {
    background: #f7f8f9;
    border: 1px solid #e4e7ea;
    border-radius: 4px;
    padding: 14px 16px;
    margin: 0 0 1em;
    overflow: auto;
    font-size: 13px;
    line-height: 1.6;
}
.markdown-body pre code {
    background: none;
    padding: 0;
    color: #3a3f4b;
}
/* 宽表格在自身内部横向滚动，而不是把整个页面撑宽
   （表格的 min-content 宽度是 width:100% 压不住的）。
   滚动容器放在外层 div 上，由 markdown 渲染时包裹生成 ——
   直接给 table 加 display:block 会生成匿名表格盒按内容收缩，窄表格就不再撑满宽度了 */
.markdown-body .table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 0 1em;
}
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 1em;
}
.markdown-body .table-scroll > table { margin-bottom: 0; }
.markdown-body th, .markdown-body td {
    border: 1px solid #e4e7ea;
    padding: 8px 12px;
    text-align: left;
}
.markdown-body th { background: var(--sky); font-weight: 600; }
.markdown-body hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }

/* TOC */
.toc-nav ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc-item a {
    display: block;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.5;
    padding: 4px 12px;
    border-left: 2px solid transparent;
    margin-left: -1px;
}
.toc-item a:hover { color: var(--accent); }
.toc-item.toc-active a { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }
.toc-level-2 a { padding-left: 22px; }
.toc-level-3 a { padding-left: 34px; }

/* ===== 关于页 ===== */
.about-page {
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}
.profile-card {
    text-align: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 48px 40px;
}
.profile-avatar img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 4px solid var(--sky);
}
.profile-name { font-size: 26px; color: var(--heading); margin: 20px 0 8px; }
.profile-bio { color: var(--muted); line-height: 1.8; }
.profile-bio p {
    margin: 0 0 10px;
    text-align: left;
    text-indent: 2em;
}
.profile-bio p:last-child { margin-bottom: 0; }
.profile-links { margin-top: 24px; }
.profile-link {
    display: inline-block;
    margin: 6px 8px;
    padding: 10px 22px;
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}
.profile-link:hover { background: var(--accent); color: #fff; }

/* ===== 404 ===== */
.error-page { text-align: center; padding: 96px 24px 120px; }
.error-page h1 { font-size: 120px; line-height: 1; color: var(--accent); margin: 0; }
.error-page .error-prompt { font-size: 18px; color: var(--heading); margin: 16px 0 8px; }
.error-page p { color: var(--muted); }
.error-page .btn {
    display: inline-block;
    margin-top: 24px;
    padding: 12px 32px;
    background: var(--accent);
    color: #fff;
    border-radius: 30px;
    font-weight: 600;
}
.error-page .btn:hover { background: var(--accent-deep); color: #fff; }

/* ===== 滚动入场 ===== */
.animate-box { opacity: 1; transform: none; }
html.js .animate-box {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
html.js .animate-box.in { opacity: 1; transform: none; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .post-toc { display: none; }
    .post-sidebar { flex-basis: 220px; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root { --header-h: 60px; }

    .nav-toggle { display: block; }
    .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: min(280px, 80vw);
        background: #fff;
        flex-direction: column;
        gap: 4px;
        margin: 0;
        padding: 76px 24px 24px;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        box-shadow: -8px 0 30px rgba(20, 30, 50, 0.12);
    }
    body.nav-open .main-nav { transform: none; }
    .main-nav a { padding: 12px 8px; font-size: 16px; }
    .main-nav a.active:after { left: 8px; right: auto; width: 22px; }

    .hero { padding: 150px 0 60px; }
    .hero-inner { flex-direction: column-reverse; gap: 32px; text-align: center; }
    .hero-title { font-size: 44px; }
    .hero-sub { font-size: 18px; margin: 0 auto; }
    .hero-avatar { flex: 0 0 auto; align-self: center; }
    .hero-avatar img { width: auto; height: 320px; }

    .sec { padding: 60px 0; }
    .about-grid { flex-direction: column; gap: 32px; }
    .about-img { flex: 0 0 auto; }
    .post-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .friends-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .banner { background-attachment: scroll; padding: 72px 0; }
    .banner h2 { font-size: 26px; }

    .post-layout {
        flex-direction: column;
        /* 单列时必须 stretch：基类的 flex-start 会让每列按自身内容宽度撑开，
           正文列因此超出视口（实测 360px 屏下正文被撑到 435px），
           再叠加 body 的 overflow-x:hidden 就被裁掉看不见了 */
        align-items: stretch;
        gap: 16px;
        padding: 20px 12px 60px;
    }
    /* 移动端取消吸顶，高度随内容自然展开 */
    .post-sidebar {
        flex: 1 1 100%;
        order: 2;
        position: static;
        max-height: none;
        overflow: visible;
    }
    .post-content { flex: 1 1 100%; order: 1; padding: 20px 18px 28px; }
    .post-title { font-size: 22px; }
}

/* ===== 文章页 / 列表页 / 关于页：柔和过渡背景（避免整页纯白单调） ===== */
body.page-post,
body.page-posts,
body.page-about {
    background:
        radial-gradient(900px 460px at 88% -8%, rgba(22, 119, 255, 0.1), transparent 62%),
        radial-gradient(720px 400px at 4% 6%, rgba(22, 119, 255, 0.07), transparent 58%),
        radial-gradient(1000px 520px at 52% 104%, rgba(54, 207, 201, 0.07), transparent 62%),
        linear-gradient(180deg, #f6faff 0%, #fafcff 45%, #ffffff 100%);
    background-attachment: fixed;
}

/* 白卡片与渐变背景形成层次 */
body.page-post .post-content,
body.page-posts .post-content,
body.page-about .profile-card {
    box-shadow: var(--shadow);
}

@media (max-width: 768px) {
    body.page-post,
    body.page-posts,
    body.page-about {
        background-attachment: scroll;
    }
}

/* ===== 减少动态 ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *:before,
    *:after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
    html.js .animate-box { opacity: 1; transform: none; }
}

/* ===== 文章归档列表（/posts，复用 post.html 布局） ===== */
.archive-total {
    margin: 0 0 20px;
    font-size: 14px;
    color: var(--muted);
}

.markdown-body .archive-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.markdown-body .archive-item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin: 0;
    padding: 14px 2px;
    border-bottom: 1px solid var(--line);
}

.markdown-body .archive-item:first-child {
    border-top: 1px solid var(--line);
}

.markdown-body .archive-link {
    font-size: 15px;
    color: var(--heading);
    text-decoration: none;
    transition: color 0.2s;
}

.markdown-body .archive-link:hover {
    color: var(--accent);
}

.markdown-body .archive-meta {
    flex-shrink: 0;
    font-size: 13px;
    color: var(--muted);
}