/* ==========================================================================
   Heylai Aurora · 沉浸氛围风主题样式
   设计语言：深空底色 + 动态壁纸 + 玻璃拟态卡片 + 克制的强调色
   ========================================================================== */

:root {
    --accent: #8ab4ff;
    --accent2: #c79bff;
    --bg: #0b1020;
    --text: #e8ecf4;
    --text-dim: #9aa7bd;
    --glass-bg: rgba(15, 20, 36, .58);
    --glass-bg-strong: rgba(13, 18, 32, .78);
    --glass-border: rgba(255, 255, 255, .10);
    --glass-blur: 18px;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow: 0 18px 50px -18px rgba(0, 0, 0, .55);
    --maxw: 1080px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* 浅色皮肤（手动切换） */
body.light {
    --text: #1c2333;
    --text-dim: #5b6678;
    --glass-bg: rgba(255, 255, 255, .62);
    --glass-bg-strong: rgba(255, 255, 255, .85);
    --glass-border: rgba(20, 30, 60, .10);
    --shadow: 0 18px 50px -20px rgba(30, 40, 80, .35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

::selection { background: color-mix(in srgb, var(--accent) 45%, transparent); color: #fff; }

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent2); }

button { font-family: inherit; cursor: pointer; }

img { max-width: 100%; }

/* --------------------------------------------------------------------------
   背景层：壁纸 + 特效画布 + 遮罩
   -------------------------------------------------------------------------- */
.bg-layer {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(180deg, #0b1020 0%, #131a33 55%, #1a1430 100%);
}

#wallpaper, #wallpaper img, #wallpaper video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.1s ease;
}

#wallpaper.is-active img, #wallpaper.is-active video { opacity: 1; }

#fx { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }

.bg-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 90% 60% at 50% -10%, transparent 40%, rgba(6, 9, 20, .55) 100%),
        linear-gradient(180deg, rgba(6, 9, 20, .25) 0%, rgba(6, 9, 20, .18) 40%, rgba(6, 9, 20, .68) 100%);
}

/* --------------------------------------------------------------------------
   通用组件
   -------------------------------------------------------------------------- */
.glass {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.5);
    backdrop-filter: blur(var(--glass-blur)) saturate(1.5);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.grad-text {
    background: linear-gradient(120deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 999px;
    border: none;
    background: linear-gradient(120deg, var(--accent), var(--accent2));
    color: #0b1020;
    font-weight: 600;
    font-size: 14px;
    transition: transform .2s, box-shadow .2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -8px color-mix(in srgb, var(--accent) 60%, transparent); color: #0b1020; }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text);
    font-size: 14px;
    transition: background .2s, border-color .2s;
}
.btn-ghost:hover { background: rgba(255, 255, 255, .08); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }

.section-title { font-size: 20px; font-weight: 700; letter-spacing: .5px; }
.section-sub { color: var(--text-dim); font-size: 13px; }

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    max-width: var(--maxw);
    margin: 0 auto 22px;
    padding: 0 20px;
}

.empty { max-width: var(--maxw); margin: 0 auto; padding: 40px; text-align: center; color: var(--text-dim); }

/* 阅读进度条 */
.progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2.5px;
    width: 0;
    z-index: 60;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    transition: width .1s linear;
}

/* --------------------------------------------------------------------------
   导航
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 14px;
    left: 0;
    right: 0;
    z-index: 50;
    display: flex;
    justify-content: center;
    pointer-events: none;
}

.nav-inner {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 22px;
    max-width: min(var(--maxw), calc(100% - 24px));
    width: 100%;
    padding: 9px 18px;
    border-radius: 999px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.6);
    backdrop-filter: blur(var(--glass-blur)) saturate(1.6);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
    transition: background .3s;
}

.nav.is-scrolled .nav-inner { background: var(--glass-bg-strong); }

.nav-logo {
    display: flex;
    align-items: center;
    gap: 9px;
    font-weight: 700;
    color: var(--text);
    font-size: 15px;
    letter-spacing: .4px;
    white-space: nowrap;
}
.logo-glyph { animation: spin 14s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.nav-menu {
    display: flex;
    gap: 4px;
    flex: 1;
    justify-content: center;
    overflow-x: auto;
    scrollbar-width: none;
}
.nav-menu::-webkit-scrollbar { display: none; }
.nav-menu a {
    color: var(--text-dim);
    font-size: 14px;
    padding: 6px 13px;
    border-radius: 999px;
    white-space: nowrap;
    transition: color .2s, background .2s;
}
.nav-menu a:hover { color: var(--text); background: rgba(255, 255, 255, .08); }
.nav-menu a.active { color: var(--text); background: color-mix(in srgb, var(--accent) 22%, transparent); }

.nav-actions { display: flex; align-items: center; gap: 6px; }

.icon-btn {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--text-dim);
    transition: color .2s, background .2s;
}
.icon-btn:hover { color: var(--text); background: rgba(255, 255, 255, .08); }

.nav-burger { display: none; }

@media (max-width: 720px) {
    .nav-inner { gap: 10px; }
    .nav-menu {
        position: absolute;
        top: calc(100% + 10px);
        left: 12px;
        right: 12px;
        flex-direction: column;
        padding: 10px;
        border-radius: var(--radius);
        background: var(--glass-bg-strong);
        -webkit-backdrop-filter: blur(var(--glass-blur));
        backdrop-filter: blur(var(--glass-blur));
        border: 1px solid var(--glass-border);
        display: none;
    }
    .nav-menu.open { display: flex; }
    .nav-burger { display: grid; }
}

/* 搜索弹层 */
.search-mask {
    position: fixed;
    inset: 0;
    z-index: 70;
    display: grid;
    place-items: start center;
    padding-top: 16vh;
    background: rgba(4, 6, 14, .55);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}
.search-mask[hidden] { display: none; }

.search-panel { width: min(560px, calc(100% - 40px)); padding: 8px 18px 14px; }
.search-panel form { display: flex; align-items: center; gap: 12px; color: var(--text-dim); }
.search-panel input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
    font-size: 17px;
    padding: 12px 0;
    font-family: inherit;
}
.search-panel kbd {
    font-size: 11px;
    padding: 3px 7px;
    border-radius: 6px;
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
}
.search-hint { font-size: 12px; color: var(--text-dim); border-top: 1px solid var(--glass-border); padding-top: 10px; }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.site-main { min-height: 60vh; }

.hero {
    min-height: calc(100vh - 40px);
    display: grid;
    place-items: center;
    padding: 90px 20px 40px;
}

.hero-inner { text-align: center; max-width: 780px; }

.hero-eyebrow {
    font-size: 13px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 14px;
}

.hero-title {
    font-size: clamp(38px, 7vw, 64px);
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: 1px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, .4);
}

.hero-motto {
    margin-top: 18px;
    font-size: clamp(15px, 2.4vw, 18px);
    color: var(--text-dim);
}
.hero-motto::after {
    content: "";
    display: inline-block;
    width: 2px;
    height: 1em;
    margin-left: 4px;
    vertical-align: -0.15em;
    background: var(--accent);
    animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-widgets {
    margin-top: 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.hero-scroll {
    display: inline-grid;
    place-items: center;
    margin-top: 60px;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    color: var(--text-dim);
    border: 1px solid var(--glass-border);
    animation: float 2.4s ease-in-out infinite;
}
@keyframes float { 50% { transform: translateY(8px); } }

.hero-actions { margin-top: 30px; display: flex; gap: 14px; justify-content: center; }

/* --------------------------------------------------------------------------
   首页文章卡片
   -------------------------------------------------------------------------- */
.post-section { max-width: var(--maxw); margin: 0 auto; padding: 40px 0 30px; }

.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    padding: 0 20px;
}

.post-card { overflow: hidden; transition: transform .3s, box-shadow .3s, border-color .3s; }
.post-card:hover {
    transform: translateY(-5px);
    border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

.card-link { display: flex; flex-direction: column; height: 100%; color: inherit; }

.card-cover {
    height: 130px;
    background: var(--g, linear-gradient(135deg, #33456b, #1c2440));
    background-size: cover;
    background-position: center;
    position: relative;
    opacity: .9;
}
.card-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(10, 14, 28, .9) 100%);
}

.card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.card-meta { font-size: 12px; color: var(--text-dim); display: flex; gap: 8px; align-items: center; }
.card-meta .dot { opacity: .6; }
.card-title {
    margin: 8px 0 6px;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-excerpt {
    color: var(--text-dim);
    font-size: 13.5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-foot {
    margin-top: auto;
    padding-top: 14px;
    display: flex;
    justify-content: space-between;
    font-size: 12.5px;
    color: var(--text-dim);
}
.card-more { color: var(--accent); }

.pager {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    padding: 34px 20px 10px;
}
.pager a {
    color: var(--text-dim);
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    transition: color .2s, border-color .2s;
}
.pager a:hover { color: var(--text); border-color: var(--accent); }
.pager-info { font-size: 13px; color: var(--text-dim); }

/* 归档行式列表 */
.post-list-vertical { display: flex; flex-direction: column; gap: 12px; padding: 0 20px; max-width: var(--maxw); margin: 0 auto; }
.post-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 15px 22px;
    color: var(--text);
    border-radius: var(--radius-sm);
    transition: transform .25s, border-color .25s;
}
.post-row:hover { transform: translateX(6px); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.post-row time { font-size: 13px; color: var(--text-dim); font-family: var(--mono); flex-shrink: 0; }
.row-title { flex: 1; font-weight: 600; font-size: 15px; }
.row-cat { font-size: 12px; color: var(--text-dim); }

/* --------------------------------------------------------------------------
   文章页
   -------------------------------------------------------------------------- */
.post-hero { padding: 130px 20px 30px; text-align: center; }
.post-hero-inner { max-width: 820px; margin: 0 auto; }
.post-hero-meta { color: var(--text-dim); font-size: 13.5px; display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.post-hero-title {
    margin-top: 12px;
    font-size: clamp(26px, 5vw, 42px);
    font-weight: 800;
    line-height: 1.3;
    text-shadow: 0 4px 24px rgba(0, 0, 0, .35);
}
.post-hero-tags { margin-top: 14px; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.post-hero-tags a {
    font-size: 12px;
    padding: 3px 12px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
}
.post-hero-tags a:hover { color: var(--accent); border-color: var(--accent); }

.post-layout {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 10px 20px 30px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 22px;
    align-items: start;
}

.post-content { padding: 34px 38px 30px; }

.post-adjacent {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px dashed var(--glass-border);
    font-size: 14px;
    color: var(--text-dim);
}
.post-adjacent a { max-width: 46%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.post-adjacent a:empty::before { content: "—"; }

/* TOC（v2.1 重叠修复：不再是独立 sticky，交由 .post-side 统一吸附） */
.post-toc {
    padding: 16px 18px;
    font-size: 13px;
}
.toc-head { font-weight: 700; margin-bottom: 10px; letter-spacing: 2px; font-size: 12px; color: var(--text-dim); }
.toc-body ul { list-style: none; }
.toc-body ul ul { padding-left: 14px; }
.toc-body a {
    display: block;
    color: var(--text-dim);
    padding: 4px 8px;
    border-radius: 8px;
    border-left: 2px solid transparent;
    line-height: 1.5;
}
.toc-body a:hover { color: var(--text); }
.toc-body a.active { color: var(--accent); border-left-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }

@media (max-width: 960px) {
    .post-layout { grid-template-columns: 1fr; }
    .post-toc { display: none; }
    .post-content { padding: 24px 22px; }
}

/* --------------------------------------------------------------------------
   Markdown 正文
   -------------------------------------------------------------------------- */
.markdown { font-size: 15.5px; word-break: break-word; }
.markdown p { margin: 1em 0; }
.markdown h1, .markdown h2, .markdown h3, .markdown h4 {
    margin: 1.6em 0 .7em;
    font-weight: 700;
    line-height: 1.4;
    scroll-margin-top: 90px;
}
.markdown h1 { font-size: 1.55em; }
.markdown h2 { font-size: 1.32em; padding-bottom: .3em; border-bottom: 1px solid var(--glass-border); }
.markdown h3 { font-size: 1.16em; }
.markdown h3::before { content: "# "; color: var(--accent); font-weight: 800; }
.markdown h4 { font-size: 1.04em; }

.markdown ul, .markdown ol { padding-left: 1.5em; margin: .8em 0; }
.markdown li { margin: .3em 0; }
.markdown li::marker { color: var(--accent); }

.markdown blockquote {
    margin: 1.2em 0;
    padding: 12px 18px;
    border-left: 3px solid var(--accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    color: var(--text-dim);
}

.markdown img { border-radius: var(--radius-sm); display: block; margin: 1.2em auto; cursor: zoom-in; }

.markdown code {
    font-family: var(--mono);
    font-size: .88em;
    background: rgba(127, 155, 220, .16);
    padding: 2px 7px;
    border-radius: 6px;
}

.markdown pre {
    margin: 1.3em 0;
    padding: 18px 20px;
    border-radius: var(--radius-sm);
    background: #0d1117 !important;
    border: 1px solid var(--glass-border);
    overflow-x: auto;
    font-size: 13.5px;
    line-height: 1.75;
}
.markdown pre code { background: none; padding: 0; font-size: inherit; }

.markdown table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: 14px; }
.markdown th, .markdown td { padding: 9px 13px; border: 1px solid var(--glass-border); text-align: left; }
.markdown th { background: rgba(127, 155, 220, .12); }

.markdown hr { border: none; border-top: 1px dashed var(--glass-border); margin: 2em 0; }

.markdown a { border-bottom: 1px dashed color-mix(in srgb, var(--accent) 60%, transparent); }

/* 图片灯箱 */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: grid;
    place-items: center;
    background: rgba(3, 5, 12, .88);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    cursor: zoom-out;
    animation: fadeIn .25s ease;
}
.lightbox img { max-width: 92vw; max-height: 92vh; border-radius: var(--radius-sm); box-shadow: var(--shadow); }
@keyframes fadeIn { from { opacity: 0; } }

/* --------------------------------------------------------------------------
   评论 v3.0 · 极简重写（组件样式见文末 nc- 样式块，此处仅保留布局基座）
   -------------------------------------------------------------------------- */
.comments-area { max-width: 820px; margin: 10px auto 40px; padding: 0 20px; }
.comments-card { padding: 26px 30px; }

/* --------------------------------------------------------------------------
   动态流
   -------------------------------------------------------------------------- */
.moments-section { max-width: 720px; margin: 0 auto; padding: 10px 20px 40px; }

.moments-timeline { position: relative; padding-left: 26px; display: flex; flex-direction: column; gap: 18px; }
.moments-timeline::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), var(--accent2), transparent);
    opacity: .5;
}

.moment-card { position: relative; padding: 18px 22px; animation: riseIn .5s ease both; }
.moment-card::before {
    content: "";
    position: absolute;
    left: -25px;
    top: 24px;
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: linear-gradient(120deg, var(--accent), var(--accent2));
    box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 70%, transparent);
}
@keyframes riseIn { from { opacity: 0; transform: translateY(14px); } }

.moment-time { font-size: 12px; color: var(--text-dim); font-family: var(--mono); }
.moment-text { margin-top: 8px; font-size: 15px; white-space: pre-wrap; }
.moment-images { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; margin-top: 12px; }
.moment-images img { border-radius: 10px; aspect-ratio: 1; object-fit: cover; width: 100%; cursor: zoom-in; }

.moments-more-wrap { text-align: center; margin-top: 26px; }

/* --------------------------------------------------------------------------
   归档模板页
   -------------------------------------------------------------------------- */
.archives-section { max-width: 820px; margin: 0 auto; padding: 10px 20px 40px; display: flex; flex-direction: column; gap: 14px; }
.archives-cats, .archives-tags { padding: 16px 20px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.archives-label { font-size: 13px; color: var(--text-dim); margin-right: 6px; letter-spacing: 2px; }
.chip {
    font-size: 13px;
    padding: 5px 14px;
    border-radius: 999px;
    background: rgba(127, 155, 220, .12);
    color: var(--text);
    transition: background .2s, color .2s;
}
.chip:hover { background: color-mix(in srgb, var(--accent) 30%, transparent); color: #fff; }
.chip i { font-style: normal; color: var(--accent); font-size: 11px; margin-left: 3px; }
.chip-sm { font-size: 12px; padding: 3px 11px; }
.archives-year { margin-top: 12px; }
.year-title {
    font-size: 22px;
    font-weight: 800;
    margin: 18px 0 14px;
    background: linear-gradient(120deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* --------------------------------------------------------------------------
   小组件（由 HeyliaKit 渲染）
   -------------------------------------------------------------------------- */
.widget {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border-radius: 999px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    font-size: 13.5px;
    color: var(--text);
    box-shadow: 0 8px 26px -12px rgba(0, 0, 0, .5);
    transition: transform .25s, border-color .25s;
}
.widget:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.widget .w-icon { display: grid; place-items: center; color: var(--accent); }
.widget .w-label { color: var(--text-dim); font-size: 12px; }
.widget .w-value { font-weight: 600; font-family: var(--mono); font-size: 13px; }
.widget-box {
    display: block;
    padding: 18px 20px;
    border-radius: var(--radius);
}
.widget-box .w-head { font-size: 12px; letter-spacing: 2px; color: var(--text-dim); margin-bottom: 10px; }

/* 一言 */
.widget-hitokoto { max-width: 560px; text-align: center; flex-direction: column; gap: 4px; padding: 16px 26px; }
.widget-hitokoto .w-text { font-size: 14.5px; }
.widget-hitokoto .w-from { font-size: 12px; color: var(--text-dim); }

/* 页脚区组件容器 */
.widget-zone-footer {
    max-width: var(--maxw);
    margin: 0 auto 30px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

/* --------------------------------------------------------------------------
   音乐播放器
   -------------------------------------------------------------------------- */
.music-player {
    position: fixed;
    left: 18px;
    bottom: 18px;
    z-index: 55;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-radius: 999px;
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
    max-width: min(320px, calc(100vw - 36px));
}
.music-player[hidden] { display: none; }
.mp-toggle, .mp-next {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    border: none;
    background: linear-gradient(120deg, var(--accent), var(--accent2));
    color: #0b1020;
    flex-shrink: 0;
}
.mp-next { background: transparent; color: var(--text-dim); border: 1px solid var(--glass-border); }
.mp-info { flex: 1; min-width: 0; }
.mp-title { display: block; font-size: 12.5px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mp-bar { height: 3px; border-radius: 3px; background: rgba(127, 155, 220, .25); margin-top: 5px; cursor: pointer; }
.mp-bar i { display: block; height: 100%; width: 0; border-radius: 3px; background: linear-gradient(90deg, var(--accent), var(--accent2)); }
.mp-disc { animation: spin 6s linear infinite; }

/* --------------------------------------------------------------------------
   页脚 / 返回顶部 / Toast
   -------------------------------------------------------------------------- */
.site-footer { padding: 30px 20px 110px; text-align: center; color: var(--text-dim); font-size: 13px; }
.site-footer p { margin: 4px 0; }
.footer-meta a, .footer-icp a { color: var(--text-dim); }
.footer-meta a:hover, .footer-icp a:hover { color: var(--accent); }
.footer-meta b { color: var(--accent); font-weight: 600; }

.backtop {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 55;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));
    color: var(--text-dim);
    display: grid;
    place-items: center;
    transition: transform .2s, color .2s;
}
.backtop:hover { transform: translateY(-4px); color: var(--accent); }
.backtop[hidden] { display: none; }

.toast-wrap { position: fixed; top: 74px; left: 50%; transform: translateX(-50%); z-index: 95; display: flex; flex-direction: column; gap: 8px; }
.toast {
    padding: 10px 20px;
    border-radius: 999px;
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    font-size: 13.5px;
    color: var(--text);
    animation: riseIn .3s ease;
}

/* --------------------------------------------------------------------------
   无障碍 & 动效降级
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
    html { scroll-behavior: auto; }
    .logo-glyph, .hero-scroll { animation: none; }
    .hero-motto::after { animation: none; }
}

@media (max-width: 720px) {
    .hero { min-height: calc(100vh - 80px); padding-top: 80px; }
    .post-hero { padding-top: 100px; }
    .post-grid { grid-template-columns: 1fr; }
    .site-footer { padding-bottom: 140px; }
    .music-player { left: 12px; bottom: 12px; }
    .backtop { right: 12px; bottom: 12px; }
}

/* 组件盒子内部布局 */
.widget-box { width: 100%; }
.widget-box .w-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    text-align: center;
}
.widget-box .w-grid b {
    display: block;
    font-size: 22px;
    font-weight: 800;
    background: linear-gradient(120deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.3;
}
.widget-box .w-grid span { font-size: 12px; color: var(--text-dim); }
.widget-box p { font-size: 14px; color: var(--text); }
.widget-profile { display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }
.widget-profile .w-avatar {
    width: 56px;
    height: 56px;
    border-radius: 999px;
    border: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
}
.widget-profile b { font-size: 16px; }
.widget-profile p { color: var(--text-dim); font-size: 13.5px; }
.widget-github { color: var(--text); transition: transform .25s, border-color .25s; }
.widget-github:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.widget-github b { font-family: var(--mono); font-size: 14px; }
.widget-github p { color: var(--text-dim); font-size: 13px; margin-top: 4px; }
.widget-links .w-links { display: flex; flex-wrap: wrap; gap: 8px; }
.widget-links .w-links a {
    font-size: 13px;
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(127, 155, 220, .12);
    color: var(--text);
}
.widget-links .w-links a:hover { background: color-mix(in srgb, var(--accent) 30%, transparent); }
.widget-moments .w-moment { font-size: 13.5px; padding: 6px 0; border-bottom: 1px dashed var(--glass-border); color: var(--text); }
.widget-moments .w-moment:last-child { border-bottom: none; }
.widget-moments .w-moment time { color: var(--text-dim); font-size: 11.5px; font-family: var(--mono); }

/* ==========================================================================
   精致克制 Polish · v1.1 设计语言重构
   原则：少用颜色 · 更轻的边框 · 更柔的阴影 · 排版优先 · 微动效
   ========================================================================== */

:root {
    --glass-border: rgba(255, 255, 255, .065);
    --glass-bg: rgba(14, 18, 32, .5);
    --glass-blur: 22px;
    --radius: 16px;
    --shadow: 0 14px 44px -20px rgba(0, 0, 0, .5), 0 1px 0 rgba(255, 255, 255, .04) inset;
    --serif: "Noto Serif SC Sub", "Noto Serif SC", "Songti SC", "SimSun", serif;
    --ease: cubic-bezier(.22, .61, .36, 1);
}

body.light {
    --glass-bg: rgba(255, 255, 255, .58);
    --glass-border: rgba(28, 35, 51, .07);
    --shadow: 0 14px 44px -22px rgba(30, 40, 80, .28);
}

/* ---- 壁纸遮罩提亮 + 首屏光晕 + 噪点质感 ---- */
.bg-overlay {
    background:
        radial-gradient(ellipse 90% 55% at 50% -8%, transparent 45%, rgba(6, 9, 20, .34) 100%),
        linear-gradient(180deg, rgba(6, 9, 20, .10) 0%, rgba(6, 9, 20, .06) 42%, rgba(6, 9, 20, .42) 100%);
}

.bg-layer::after {
    /* 细腻噪点：消解渐变色带，增加「纸感」 */
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
    opacity: .05;
    mix-blend-mode: overlay;
    pointer-events: none;
}

.hero::before {
    /* 标题后方的弥散光晕，让夜色首屏有呼吸感 */
    content: "";
    position: absolute;
    left: 50%;
    top: 42%;
    width: min(880px, 92vw);
    height: 380px;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse at center,
        color-mix(in srgb, var(--accent) 13%, transparent) 0%,
        color-mix(in srgb, var(--accent2) 7%, transparent) 42%,
        transparent 70%);
    filter: blur(30px);
    pointer-events: none;
}

/* ---- 排版：衬线仅保留给 h1~h3 / 站点名 / 金句（O1 字体瘦身） ---- */
.hero-title,
.post-hero-title {
    font-family: var(--serif);
    letter-spacing: .02em;
}
.hero-title { font-weight: 700; }
.post-hero-title { font-weight: 700; letter-spacing: .03em; }
.hero-eyebrow { letter-spacing: 6px; font-weight: 500; }

/* 渐变字收敛：hero 主题词只保留单色强调 */
.hero-title .grad-text {
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    color: var(--accent);
}
.year-title { font-size: 20px; letter-spacing: .06em; }

/* ---- 按钮：去发光，改墨色 ---- */
.btn-primary {
    background: rgba(255, 255, 255, .92);
    color: #10162a;
    box-shadow: none;
    font-weight: 600;
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px -10px rgba(0, 0, 0, .5);
    color: #10162a;
}
.btn-ghost { border-color: rgba(255, 255, 255, .14); }
body.light .btn-primary { background: #1c2333; color: #fff; }
body.light .btn-primary:hover { color: #fff; }

/* ---- 卡片：更轻的边框、微动效 ---- */
.post-card { transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease); }
.post-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, .14);
    box-shadow: 0 20px 50px -22px rgba(0, 0, 0, .6);
}
.post-card .card-cover { opacity: .82; transition: opacity .35s var(--ease); }
.post-card:hover .card-cover { opacity: 1; }

/* 入场：8px 淡入上浮（尊重 reduced-motion） */
@media (prefers-reduced-motion: no-preference) {
    .post-card, .post-row, .moment-card, .widget-box, .widget {
        animation: riseIn .55s var(--ease) both;
    }
    .post-grid .post-card:nth-child(2) { animation-delay: .05s; }
    .post-grid .post-card:nth-child(3) { animation-delay: .1s; }
    .post-grid .post-card:nth-child(4) { animation-delay: .15s; }
    .post-grid .post-card:nth-child(5) { animation-delay: .2s; }
    .post-grid .post-card:nth-child(6) { animation-delay: .25s; }
}

/* ---- 正文像书：限宽、字号、行距 ---- */
.post-content .markdown {
    max-width: 44em;
    margin: 0 auto;
    font-size: 16.5px;
    line-height: 1.92;
    letter-spacing: .01em;
    color: color-mix(in srgb, var(--text) 92%, transparent);
}
.markdown p { margin: 1.25em 0; }
.markdown h1, .markdown h2, .markdown h3 {
    font-family: var(--serif);
    font-weight: 700;
    letter-spacing: .02em;
}
.markdown h2 { border-bottom: 1px solid var(--glass-border); padding-bottom: .35em; }
.markdown blockquote {
    background: color-mix(in srgb, var(--accent) 5%, transparent);
    font-size: .95em;
}
.post-content { padding: 42px 46px 36px; }
@media (max-width: 720px) { .post-content { padding: 26px 20px; } .post-content .markdown { font-size: 15.5px; } }

/* ---- 数字排版：等宽表格数字 ---- */
.card-meta time, .post-hero-meta, .w-value, .moment-time, .post-row time, .pager-info {
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum";
}

/* ---- 组件胶囊：更安静 ---- */
.widget {
    padding: 9px 16px;
    background: rgba(14, 18, 32, .42);
    font-size: 13px;
    box-shadow: 0 6px 22px -14px rgba(0, 0, 0, .5);
}
.widget .w-icon { color: var(--text-dim); }
.widget .w-icon svg { display: block; }
.widget:hover { border-color: rgba(255, 255, 255, .13); transform: translateY(-2px); }
.widget .w-label { font-size: 12px; }

/* ---- 导航：更轻 ---- */
.nav-inner { padding: 8px 16px; }
.nav-menu a.active {
    background: rgba(255, 255, 255, .09);
    color: var(--text);
}

/* ---- 渐变仅保留给进度条与选中强调 ---- */
.grad-text { color: var(--accent); }
.chip:hover { background: rgba(255, 255, 255, .12); }

/* 打字光标只属于首页 Hero */
.post-hero .hero-motto::after, .hero-404 .hero-motto::after { display: none; }

/* ==========================================================================
   科技感背景层 v1.2：流动渐变 + 常驻星尘
   ========================================================================== */

/* 全站大背景（scope=site）：bg-layer 内 read-* 层置于壁纸/渐变之上 */
.bg-layer .read-desk, .bg-layer .read-paper, .bg-layer .read-bg { z-index: 3; }
body.desk-on .bg-grad, body.paper-on .bg-grad { display: none; }

.bg-grad {
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(ellipse 42% 34% at 18% 24%, color-mix(in srgb, var(--accent) 26%, transparent), transparent 62%),
        radial-gradient(ellipse 38% 40% at 82% 18%, color-mix(in srgb, var(--accent2) 20%, transparent), transparent 60%),
        radial-gradient(ellipse 50% 36% at 62% 82%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 65%),
        radial-gradient(ellipse 30% 28% at 28% 76%, color-mix(in srgb, #5eead4 12%, transparent), transparent 60%);
    mix-blend-mode: screen;
    opacity: .5;
    animation: gradDrift 26s ease-in-out infinite alternate;
    pointer-events: none;
    will-change: transform;
}
@keyframes gradDrift {
    0%   { transform: translate3d(-2%, -1%, 0) scale(1); }
    50%  { transform: translate3d(2.5%, 1.5%, 0) scale(1.06); }
    100% { transform: translate3d(-1.5%, 2%, 0) scale(1.02); }
}

/* 常驻粒子画布稍微提高存在感（粒子由 wallpaper.js 绘制） */
#fx { opacity: .85; }

@media (prefers-reduced-motion: reduce) {
    .bg-grad { animation: none; }
}

/* ---- 首屏垂直居中修正：内容块真正落在视口中央 ---- */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100svh;
    padding: 96px 20px 48px;
}
.hero-inner {
    margin-top: -3vh; /* 视觉重心微调：光学居中而非数学居中（不用 transform，避免劫持绝对定位子元素） */
}
.hero-scroll {
    position: absolute;
    left: 50%;
    bottom: 6vh;
    margin-left: -20px;
    margin-top: 0;
}
@media (max-width: 720px) {
    .hero { min-height: 100svh; padding-top: 84px; }
    .hero-inner { margin-top: -2vh; }
}

/* ==========================================================================
   文章区 v1.3：置顶大卡 / 分类卡片行 / Tab 筛选
   ========================================================================== */

/* 置顶大卡 */
.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    padding: 0 20px 22px;
    max-width: var(--maxw);
    margin: 0 auto;
}
.featured-card {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    color: var(--text);
    transition: transform .35s var(--ease), border-color .35s var(--ease);
}
.featured-card:hover { transform: translateY(-3px); border-color: rgba(255, 255, 255, .16); }
.featured-card .card-cover { height: 150px; opacity: .9; }
.featured-card .card-body { padding: 18px 20px 20px; }
.featured-card .card-title { font-size: 18px; font-family: var(--serif); }
.featured-card .card-excerpt { -webkit-line-clamp: 3; }
.featured-card .card-meta { margin-top: 12px; display: flex; justify-content: space-between; align-items: center; }
.featured-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    font-size: 11px;
    letter-spacing: 2px;
    padding: 3px 12px;
    border-radius: 999px;
    background: rgba(10, 14, 28, .55);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, .18);
    color: #fff;
}

/* 分类卡片行 */
.cat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
    padding: 0 20px 22px;
    max-width: var(--maxw);
    margin: 0 auto;
}
.cat-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 18px;
    color: var(--text);
    transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.cat-card:hover { transform: translateY(-2px); border-color: rgba(255, 255, 255, .16); }
.cat-name { font-family: var(--serif); font-weight: 700; font-size: 15.5px; }
.cat-desc { font-size: 12.5px; color: var(--text-dim); }
.cat-count { font-size: 11.5px; color: var(--text-dim); opacity: .8; margin-top: 2px; }

/* 分类 Tab */
.cat-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 0 20px 26px;
    max-width: var(--maxw);
    margin: 0 auto;
}
.cat-tab {
    padding: 7px 20px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text-dim);
    font-size: 13.5px;
    transition: all .25s var(--ease);
}
.cat-tab:hover { color: var(--text); border-color: rgba(255, 255, 255, .18); }
.cat-tab.active {
    color: var(--text);
    background: rgba(255, 255, 255, .1);
    border-color: rgba(255, 255, 255, .18);
}

.stream-more-wrap { text-align: center; padding: 30px 20px 4px; }
#streamPager[hidden] { display: none; }

@media (max-width: 860px) {
    .featured-grid { grid-template-columns: 1fr; }
}

/* ---- 文章页：相关文章 ---- */
.related-section {
    max-width: 820px;
    margin: 6px auto 14px;
    padding: 0 20px;
}
.related-head {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 15px;
    letter-spacing: .04em;
    margin-bottom: 12px;
    color: var(--text);
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 12px;
}
.related-card {
    padding: 14px 16px;
    color: var(--text);
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.related-card:hover { transform: translateY(-2px); border-color: rgba(255, 255, 255, .16); }
.related-card .r-title { font-weight: 600; font-size: 14px; line-height: 1.5; }
.related-card .r-meta { font-size: 12px; color: var(--text-dim); }

/* 标签胶囊（文章 hero）强化 */
.post-hero-tags a {
    transition: all .25s var(--ease);
}
.post-hero-tags a:hover {
    background: rgba(255, 255, 255, .09);
    transform: translateY(-1px);
}

/* ---- 移动端目录快捷入口 ---- */
.toc-fab {
    position: fixed;
    right: 16px;
    bottom: 76px;
    z-index: 56;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));
    color: var(--text-dim);
    display: none;
    place-items: center;
}
.toc-overlay {
    position: fixed;
    inset: 0;
    z-index: 80;
    background: rgba(4, 6, 14, .55);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    display: grid;
    place-items: end center;
    padding-bottom: 8vh;
    animation: fadeIn .25s ease;
}
.toc-overlay[hidden] { display: none; }
.toc-sheet {
    width: min(560px, calc(100vw - 32px));
    max-height: 62vh;
    overflow-y: auto;
    padding: 20px 22px;
    border-radius: var(--radius);
}
.toc-sheet .toc-head { margin-bottom: 12px; }
@media (max-width: 960px) {
    .toc-fab { display: grid; }
}

/* ==========================================================================
   v1.3.1 层级与节奏修正：区块间距/小标题/公告瘦身/封面降噪
   ========================================================================== */

/* 公告瘦身：从玻璃大卡降为安静的细条 */
.widget-notice {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 18px !important;
    border-radius: 12px !important;
    background: color-mix(in srgb, var(--accent) 6%, rgba(14, 18, 32, .4)) !important;
    margin: 0 auto 34px;
    max-width: var(--maxw);
}
.widget-notice .w-head {
    margin: 0 !important;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent) !important;
    letter-spacing: 2px;
}
.widget-notice p { font-size: 13.5px; color: var(--text); margin: 0 !important; }

/* 区块节奏：每个板块之间留足呼吸 */
.post-section .section-head { margin-bottom: 18px; }
.featured-grid { padding: 0 20px 40px !important; }
.cat-cards { padding: 0 20px 36px !important; }
.cat-tabs { padding: 0 20px 34px !important; }

/* 区块小标题：让界限一目了然 */
.zone-head {
    display: flex;
    align-items: baseline;
    gap: 10px;
    max-width: var(--maxw);
    margin: 0 auto 14px;
    padding: 0 20px;
}
.zone-head .zh-title {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 16px;
    letter-spacing: .04em;
}
.zone-head .zh-sub { font-size: 12px; color: var(--text-dim); }
.zone-head .zh-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--glass-border), transparent);
}

/* 封面降噪：降低存在感，让卡片沉进版面 */
.card-cover { opacity: .68 !important; }
.post-card:hover .card-cover, .featured-card:hover .card-cover { opacity: .85 !important; }
.card-cover::after {
    background: linear-gradient(180deg, rgba(10, 14, 28, .12) 0%, rgba(10, 14, 28, .55) 55%, rgba(10, 14, 28, .95) 100%) !important;
}

/* 分类卡降权：文字为主，去掉卡片的重玻璃感 */
.cat-card {
    background: rgba(255, 255, 255, .035) !important;
    box-shadow: none !important;
    padding: 14px 16px !important;
}
.cat-card:hover { background: rgba(255, 255, 255, .07) !important; }

@media (max-width: 720px) {
    .widget-notice { margin-bottom: 26px; }
    .featured-grid { padding: 0 20px 30px !important; }
    .cat-cards { padding: 0 20px 28px !important; }
    .cat-tabs { padding: 0 20px 26px !important; }
}

/* ==========================================================================
   v1.4 文章区左右分栏：左侧分类导航 / 右侧文章流
   ========================================================================== */

.post-layout-grid {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
}

/* 左侧导航（v2.1：同样加内部滚动，防小组件多时超高裁切） */
.cat-side {
    position: sticky;
    top: 84px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-height: calc(100vh - 104px);
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: rgba(160, 180, 220, .28) transparent;
    padding-right: 4px;
}
.cat-side::-webkit-scrollbar { width: 4px; }
.cat-side::-webkit-scrollbar-thumb { background: rgba(160, 180, 220, .28); border-radius: 4px; }
.cat-side::-webkit-scrollbar-track { background: transparent; }
.cat-side > * { flex-shrink: 0; }
.cs-block { padding: 16px 14px; }
.cs-head {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: .12em;
    color: var(--text-dim);
    margin: 0 8px 10px;
}
.cs-list { display: flex; flex-direction: column; gap: 2px; }
.cs-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 8px 10px;
    border: none;
    border-left: 2px solid transparent;
    border-radius: 9px;
    background: transparent;
    color: var(--text-dim);
    font-size: 13.5px;
    text-align: left;
    transition: all .22s var(--ease);
}
.cs-item span { flex: 1; }
.cs-item i {
    font-style: normal;
    font-size: 11.5px;
    font-variant-numeric: tabular-nums;
    opacity: .75;
}
.cs-item:hover { color: var(--text); background: rgba(255, 255, 255, .06); }
.cs-item.active {
    color: var(--text);
    background: rgba(255, 255, 255, .08);
    border-left-color: var(--accent);
}
.cs-tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 4px; }

/* 右侧文章流：置顶卡全宽，普通卡双列 */
.stream-col { min-width: 0; }
#featuredGrid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 0;
    margin: 0 0 22px;
    max-width: none;
}
#featuredGrid .featured-card { flex-direction: row; }
#featuredGrid .featured-card .card-cover {
    width: 38%;
    min-width: 200px;
    height: auto;
    min-height: 168px;
}
#featuredGrid .featured-card .card-body { padding: 20px 22px; flex: 1; justify-content: center; }
#featuredGrid .featured-card .card-title { font-size: 20px; }
#featuredGrid .featured-card .card-excerpt { -webkit-line-clamp: 2; }

#postStream {
    grid-template-columns: repeat(2, 1fr);
    padding: 0;
    max-width: none;
}

@media (max-width: 960px) {
    .post-layout-grid { grid-template-columns: 1fr; gap: 18px; }
    .cat-side {
        position: static;
        flex-direction: row;
        overflow-x: auto;
        max-height: none;
        padding-right: 0;
        gap: 10px;
        padding-bottom: 4px;
        scrollbar-width: none;
    }
    .cat-side::-webkit-scrollbar { display: none; }
    .cs-block { padding: 8px; display: flex; align-items: center; gap: 8px; background: var(--glass-bg) !important; border-radius: 999px !important; }
    .cs-head { display: none; }
    .cs-list { flex-direction: row; gap: 4px; }
    .cs-item {
        white-space: nowrap;
        width: auto;
        padding: 6px 14px;
        border-left: none;
        border: 1px solid var(--glass-border);
        border-radius: 999px;
    }
    .cs-item.active { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .2); }
    .cs-tags-block { display: none !important; } /* 窄屏隐藏标签云块，保持一行 */
    #featuredGrid .featured-card { flex-direction: column; }
    #featuredGrid .featured-card .card-cover { width: 100%; min-height: 120px; }
    #postStream { grid-template-columns: 1fr; }
}

/* ==========================================================================
   v1.5 文章区可读性提亮：文字层级 + 卡片内衬 + 封面复明
   ========================================================================== */

/* 1) 卡片容器加不透明内衬：和背景拉开对比 */
#postStream .post-card,
#featuredGrid .featured-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .028)) !important;
    border: 1px solid rgba(255, 255, 255, .10);
}
#postStream .post-card:hover,
#featuredGrid .featured-card:hover {
    border-color: rgba(255, 255, 255, .22);
}

/* 2) 文字层级整体提亮一档 */
#postStream .card-title, #featuredGrid .card-title { color: #f4f7fc; }
#postStream .card-excerpt { color: #b9c4d8; }
#postStream .card-meta, #featuredGrid .card-meta { color: #a8b3c9; }
#postStream .card-more { color: var(--accent); font-weight: 500; }
body.light #postStream .card-title { color: #171e30; }
body.light #postStream .card-excerpt { color: #4a5464; }
body.light #postStream .card-meta { color: #5b6678; }

/* 3) 封面恢复存在感（此前压得过暗）并柔化过渡 */
#postStream .card-cover, #featuredGrid .card-cover { opacity: .92 !important; }
#postStream .post-card:hover .card-cover, #featuredGrid .featured-card:hover .card-cover { opacity: 1 !important; }
#postStream .card-cover::after, #featuredGrid .card-cover::after {
    background: linear-gradient(180deg,
        rgba(10, 14, 28, 0) 0%,
        rgba(10, 14, 28, .38) 62%,
        rgba(12, 16, 30, .96) 100%) !important;
}

/* 4) 侧栏分类导航提亮：底色加深才浮得起来 */
.cs-block { background: rgba(16, 21, 38, .55) !important; }
.cs-item { color: #b6c1d6; }
.cs-item:hover { color: #f0f4fa; }
.cs-item.active { color: #f4f7fc; }
.cs-item i { color: #93a0b8; }

/* 5) 区块间距微调：栏目题下沿留白一致 */
.post-section .section-head { margin-bottom: 24px; }

body.light .cs-block { background: rgba(255, 255, 255, .66) !important; }
body.light .cs-item { color: #4a5464; }
body.light .cs-item.active { color: #171e30; }

/* 文章区整体容器：与 Hero 背景明确断开，阅读区形成一张安静的深色画布 */
.post-section {
    position: relative;
    max-width: 1180px;
    margin: 0 auto;
    padding: 42px 0 52px;
}
.post-section::before {
    content: "";
    position: absolute;
    z-index: -1;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    border-radius: 28px 28px 0 0;
    background: linear-gradient(180deg, rgba(28, 36, 60, .90), rgba(18, 25, 46, .86));
    border: 1px solid rgba(190, 208, 255, .15);
    box-shadow: 0 -14px 60px -32px rgba(0, 0, 0, .45), 0 10px 60px -30px rgba(55, 75, 130, .30) inset;
}
.post-section > .section-head { position: relative; }
.post-section > .section-head .section-title { color: #f4f7fc; }
.post-section > .section-head .section-sub { color: #9aa8be; }

/* 侧栏和文章卡片在阅读画布上再上一个层级 */
.post-section .cat-side .cs-block {
    background: rgba(28, 35, 56, .72) !important;
    border-color: rgba(255, 255, 255, .12) !important;
}
.post-section #postStream .post-card,
.post-section #featuredGrid .featured-card {
    background: linear-gradient(180deg, rgba(54, 66, 99, .82), rgba(31, 42, 70, .88)) !important;
    border-color: rgba(210, 222, 255, .24) !important;
}
.post-section #postStream .post-card:hover,
.post-section #featuredGrid .featured-card:hover {
    background: linear-gradient(180deg, rgba(64, 79, 116, .90), rgba(37, 51, 84, .94)) !important;
    border-color: rgba(225, 234, 255, .34) !important;
}

@media (max-width: 960px) {
    .post-section { padding-top: 28px; }
    .post-section::before { border-radius: 22px 22px 0 0; }
}

/* 阅读区额外留白：让分栏和卡片有明确呼吸边界 */
.post-layout-grid { gap: 30px; }
.post-section .cat-side { padding-top: 2px; }
.post-section .stream-col { padding-top: 2px; }
#postStream { gap: 18px; }
#featuredGrid { margin-bottom: 28px; }

/* 小标题避免与卡片连成一团 */
.post-section > .section-head {
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(190, 208, 255, .14);
    margin-bottom: 26px;
}
@media (max-width: 960px) {
    .post-layout-grid { gap: 20px; }
    .post-section > .section-head { margin-bottom: 20px; }
}

/* ==========================================================================
   v1.6 阅读页配色：正文卡提亮为蓝灰内衬，正文行文明亮
   ========================================================================== */

.post-content,
.comments-card {
    background: linear-gradient(180deg, rgba(44, 54, 82, .80), rgba(26, 34, 58, .88)) !important;
    border: 1px solid rgba(210, 222, 255, .22) !important;
}

.post-content .markdown {
    color: #eef2f9;
}
.markdown h2 { border-bottom-color: rgba(210, 222, 255, .14); }
.markdown blockquote {
    background: rgba(138, 180, 255, .10) !important;
    color: #c5d2e8;
    border-left-color: var(--accent);
}
.markdown code {
    background: rgba(138, 180, 255, .16);
    color: #d6e2ff;
}
.markdown table th { background: rgba(138, 180, 255, .14); }
.markdown hr { border-top-color: rgba(210, 222, 255, .16); }

.post-adjacent { border-top-color: rgba(210, 222, 255, .14); }
.post-adjacent a { color: #b9c6dc; }
.post-adjacent a:hover { color: var(--accent); }

/* 文章 hero 元信息提亮 */
.post-hero-meta { color: #a8b6cc; }

/* 相关文章卡片 */
.related-card {
    background: rgba(44, 54, 82, .55) !important;
    border-color: rgba(210, 222, 255, .14) !important;
}
.related-card:hover { border-color: rgba(210, 222, 255, .30) !important; }
.related-card .r-title { color: #eef2f9; }
.related-card .r-meta { color: #a8b6cc; }

/* 侧栏 TOC */
.post-toc { background: rgba(30, 39, 64, .72) !important; border-color: rgba(210, 222, 255, .16) !important; }
.toc-body a { color: #a9b6cc; }
.toc-body a.active { color: var(--accent); }

body.light .post-content,
body.light .comments-card {
    background: rgba(255, 255, 255, .88) !important;
    border-color: rgba(28, 35, 51, .10) !important;
}
body.light .post-content .markdown { color: #222b3d; }

/* ==========================================================================
   v1.8：目录左置 / 自绘评论 / 卡片缩略图
   ========================================================================== */

/* ---- 目录在左 ---- */
.post-layout { grid-template-columns: 240px minmax(0, 1fr); }
.post-toc {
    background: rgba(30, 39, 64, .60) !important;
}

/* ---- 卡片缩略图 ---- */
.card-cover { overflow: hidden; }
.card-cover.has-img { background: var(--g, linear-gradient(135deg, #33456b, #1c2440)); }
.card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .5s var(--ease);
}
.post-card:hover .card-cover img, .featured-card:hover .card-cover img { transform: scale(1.04); }

/* ==========================================================================
   评论 v3.0 · 极简重写：评论输入框 → 昵称小框 → 发布；平铺 + 缩进回复
   ========================================================================== */
.nc-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 16px; }
.nc-head .section-title { margin-bottom: 0; font-size: 18px; }
.nc-count { font-size: 12.5px; color: var(--text-dim); }

/* 表单：评论输入在上，昵称小框 + 发布按钮在下 */
.nc-form textarea.nc-text {
    width: 100%;
    min-height: 92px;
    resize: vertical;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(210, 222, 255, .14);
    background: rgba(10, 15, 30, .35);
    color: var(--text);
    padding: 12px 14px;
    font-family: inherit;
    font-size: 14.5px;
    line-height: 1.7;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}
.nc-form textarea.nc-text:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(138, 180, 255, .14); }

.nc-meta { display: flex; align-items: center; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.nc-nick {
    width: 132px;
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid rgba(210, 222, 255, .14);
    background: rgba(10, 15, 30, .35);
    color: var(--text);
    font-family: inherit;
    font-size: 13px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}
.nc-nick:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(138, 180, 255, .14); }
.nc-replying { font-size: 12.5px; color: var(--accent); display: inline-flex; align-items: center; gap: 5px; }
.nc-cancel {
    border: none;
    width: 18px; height: 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .12);
    color: var(--text-dim);
    font-size: 11px;
    line-height: 1;
    cursor: pointer;
}
.nc-cancel:hover { background: rgba(255, 255, 255, .22); color: var(--text); }
.nc-send {
    margin-left: auto;
    padding: 8px 24px;
    border: none;
    border-radius: 999px;
    background: rgba(255, 255, 255, .92);
    color: #10162a;
    font-weight: 600;
    font-size: 13.5px;
    cursor: pointer;
    transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.nc-send:hover { transform: translateY(-1px); box-shadow: 0 8px 22px -10px rgba(0, 0, 0, .55); }
.nc-send:active { transform: translateY(0); }

/* 评论列表 */
.comments-card .comment-list { list-style: none; margin: 18px 0 0; padding: 0; }
.nc-item { padding: 13px 2px; border-top: 1px solid rgba(255, 255, 255, .06); }
.nc-item:first-child { border-top: none; }
.nc-comment { display: flex; gap: 12px; }
.nc-avatar {
    width: 36px; height: 36px;
    border-radius: 999px;
    flex-shrink: 0;
    display: grid; place-items: center;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    user-select: none;
    margin-top: 2px;
}
.nc-main { flex: 1; min-width: 0; }
.nc-row { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.nc-name { color: var(--accent); font-size: 14px; font-weight: 600; }
.nc-badge {
    display: inline-block;
    margin-left: 6px;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--accent);
    color: #0b1020;
    font-size: 10.5px;
    font-weight: 700;
    vertical-align: 1px;
}
.nc-time { font-size: 12px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.nc-text { margin-top: 4px; font-size: 14.5px; line-height: 1.75; color: var(--text); word-break: break-word; }
.nc-text p { margin: 0 0 .5em; }
.nc-text p:last-child { margin-bottom: 0; }
.nc-reply {
    margin-top: 5px;
    border: none;
    background: none;
    color: var(--text-dim);
    font-size: 12.5px;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 6px;
    transition: color .2s;
}
.nc-reply:hover { color: var(--accent); }
.nc-empty { color: var(--text-dim); font-size: 13.5px; text-align: center; padding: 18px 0 6px; }

/* 子评论：向右缩进 + 虚线层级线（listComments 嵌套 ol） */
.comments-card .comment-list .comment-list {
    margin: 10px 0 0 40px;
    padding-left: 16px;
    border-left: 1px dashed rgba(255, 255, 255, .12);
}

body.light .nc-form textarea.nc-text,
body.light .nc-nick { background: #fff; border-color: rgba(28, 35, 51, .14); color: #222b3d; }
body.light .nc-item { border-top-color: rgba(28, 35, 51, .07); }
body.light .comment-list .comment-list { border-left-color: rgba(28, 35, 51, .12); }
body.light .nc-text { color: #222b3d; }
body.light .nc-send { background: #1c2333; color: #fff; }

@media (max-width: 720px) {
    .comments-card { padding: 20px 16px; }
    .comments-card .comment-list .comment-list { margin-left: 18px; }
    .nc-send { margin-left: 0; }
    .nc-meta { gap: 8px; }
}

/* ---- 左栏文艺组件 v2.2 ---- */
.poetry { position: relative; overflow: hidden; }
.poetry::before {
    content: "\201C";
    position: absolute;
    top: -6px;
    left: 10px;
    font-family: var(--serif);
    font-size: 52px;
    color: rgba(138, 180, 255, .16);
    pointer-events: none;
}
.poetry .poem-text { position: relative; }

.progress-card .progress-ring-wrap {
    position: relative;
    width: 76px;
    margin: 4px auto 0;
}
.progress-ring { width: 76px; height: 76px; display: block; }
.progress-ring circle { transition: stroke-dashoffset .3s linear; }
.progress-num {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.site-days .days-num {
    font-family: var(--serif);
    font-size: 13.5px;
    color: var(--text-dim);
    text-align: center;
}
.site-days .days-num b {
    font-size: 30px;
    font-weight: 700;
    color: var(--text);
    margin-right: 4px;
    background: linear-gradient(120deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-variant-numeric: tabular-nums;
}
.site-days .days-sub {
    text-align: center;
    font-size: 11.5px;
    color: var(--text-dim);
    margin-top: 2px;
    letter-spacing: 2px;
}

/* 文章信息卡加左侧强调点 */
.info-list li { padding-left: 10px; position: relative; }
.info-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 3px;
    height: 3px;
    border-radius: 999px;
    background: var(--accent);
    opacity: .55;
    transform: translateY(-50%);
}


@media (max-width: 720px) { .comment-list .comment-list { padding-left: 18px; } }

/* ==========================================================================
   v2.0 阅读页：更亮画布 / 更宽布局 / B 站风评论 / 文艺组件
   ========================================================================== */

/* 布局：更宽、目录更贴左 */
.post-layout { max-width: 1240px; grid-template-columns: 208px minmax(0, 1fr); gap: 22px; }
.post-section { max-width: 1260px; }

/* 左栏：目录 + 组件卡
   v2.1 重叠修复：唯一 sticky 容器；超高时内部滚动（卡片永不出视口、互不重叠） */
.post-side {
    position: sticky;
    top: 84px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-height: calc(100vh - 104px);
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: rgba(160, 180, 220, .28) transparent;
    padding-right: 4px;
}
.post-side::-webkit-scrollbar { width: 4px; }
.post-side::-webkit-scrollbar-thumb { background: rgba(160, 180, 220, .28); border-radius: 4px; }
.post-side::-webkit-scrollbar-track { background: transparent; }
.post-side > * { flex-shrink: 0; }   /* 超高时出滚动条而非压缩卡片 */
.side-card { padding: 15px 17px; background: rgba(38, 48, 78, .58) !important; border-color: rgba(210, 222, 255, .14) !important; }
.info-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.info-list li { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-dim); }
.info-list li b { color: var(--text); font-weight: 500; font-variant-numeric: tabular-nums; }
.poetry .poem-text {
    font-family: var(--serif);
    font-size: 13.5px;
    line-height: 1.95;
    color: #d4ddef;
    letter-spacing: .03em;
}
.poetry .poem-from { margin-top: 8px; text-align: right; font-size: 11.5px; color: var(--text-dim); }
@media (max-width: 960px) { .post-side { position: static; max-height: none; overflow: visible; padding-right: 0; } .side-card.poetry { display: none; } }

/* 阅读画布提亮：正文卡与评论卡一起抬升 */
.post-content,
.comments-card {
    background: linear-gradient(180deg, rgba(78, 91, 128, .90), rgba(48, 60, 96, .93)) !important;
    border: 1px solid rgba(219, 228, 255, .28) !important;
    box-shadow: 0 22px 60px -28px rgba(0, 0, 0, .55) !important;
}
.post-content .markdown { color: #f5f8fd; }
.markdown blockquote { color: #d8e2f5; background: rgba(138, 180, 255, .13) !important; }
.markdown code { color: #e3ecff; background: rgba(138, 180, 255, .20); }
.post-adjacent a { color: #c9d4e8; }
.post-toc, .comments-card .related-card, .related-section .related-card { background: rgba(52, 64, 100, .62) !important; border-color: rgba(219, 228, 255, .20) !important; }
.toc-body a { color: #bcc8de; }
.comments-card .section-title, .post-content .markdown h1, .post-content .markdown h2, .post-content .markdown h3 { color: #ffffff; }

body.light .post-content, body.light .comments-card {
    background: rgba(255, 255, 255, .9) !important;
    border-color: rgba(28, 35, 51, .1) !important;
}

/* ==========================================================================
   v2.1 阅读页图片背景
   ========================================================================== */

/* 阅读页图片背景：叠在阅读画布之上、内容之下；--rb-tint 控制色罩（v3.0） */
.read-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-size: cover;
    background-position: center;
    --rb-dim: 45;
    --rb-blur: 0px;
    --rb-tint: #0a0f20;
    --rb-tintop: 0;
}
.read-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg,
            color-mix(in srgb, var(--rb-tint) calc(var(--rb-dim) * .7%), transparent),
            color-mix(in srgb, var(--rb-tint) calc(var(--rb-dim) * 1.1%), transparent)),
        color-mix(in srgb, var(--rb-tint) calc(var(--rb-tintop) * 1%), transparent);
    backdrop-filter: blur(var(--rb-blur));
    -webkit-backdrop-filter: blur(var(--rb-blur));
}

/* v3.0 纯色大背景（渐变可选） */
.read-desk {
    position: fixed;
    inset: 0;
    z-index: -1;
}

/* 有背景图时正文卡更通透，让图隐约透出来 */
.has-readbg .post-content,
.has-readbg .comments-card {
    background: linear-gradient(180deg, rgba(46, 58, 94, .66), rgba(30, 40, 68, .74)) !important;
}
.has-readbg .post-side .side-card,
.has-readbg .post-toc {
    background: rgba(30, 39, 66, .52) !important;
}

/* ==========================================================================
   v2.2 阅读页纸质感（零流量 CSS 纹理）
   深色模式：牛皮纸桌面 + 奶油信纸正文卡；浅色模式：整页米白纸感
   ========================================================================== */

/* 牛皮纸桌面（v3.0 参数化）：--pt1/--pt2 渐层两端色，--pgrain 噪点强度，--pvig 晕影 */
.read-paper {
    position: fixed;
    inset: 0;
    z-index: -1;
    --pt1: #302a20;
    --pt2: #211c14;
    --pgrain: 50;
    --pvig: 38;
    background:
        radial-gradient(120% 80% at 50% 0%, rgba(255, 226, 170, .10), transparent 55%),
        linear-gradient(180deg, var(--pt1), var(--pt2));
}
/* 纸张纤维噪点（强度可调，overlay 混合保留暗部层次） */
.read-paper::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
    opacity: calc(var(--pgrain) / 100);
    mix-blend-mode: overlay;
}
/* 纸张边缘的暖色晕影，让桌面有纵深（强度可调） */
.read-paper::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(140% 100% at 50% 40%, transparent 55%, rgba(10, 7, 3, calc(var(--pvig) / 100)));
}

/* ==========================================================================
   v3.0 阅读框背景系统：card-paper / card-color / card-glass / card-image
   变量由 post.php / comments.php 按后台配置注入 post-layout / comments-area
   ========================================================================== */

/* ---- 纸质感阅读框：--card-tint 纸色，--card-grain 纹理强度 ---- */
.post-layout.card-paper .post-content,
.comments-area.card-paper .comments-card {
    isolation: isolate;
    background: linear-gradient(180deg,
        color-mix(in srgb, var(--card-tint, #faf6ea) 94%, #fff),
        var(--card-tint, #faf6ea)) !important;
    border: 1px solid color-mix(in srgb, var(--card-tint, #faf6ea) 80%, #8a7050) !important;
    box-shadow: 0 26px 70px -30px rgba(12, 8, 4, .8), inset 0 1px 0 rgba(255, 255, 255, .65) !important;
}
/* 纸纹噪点：垫在卡背景之上、正文之下 */
.post-layout.card-paper .post-content::before,
.comments-area.card-paper .comments-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    z-index: -1;
    pointer-events: none;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
    opacity: calc(var(--card-grain, 35) / 100 * .3);
    mix-blend-mode: multiply;
}

/* ---- 纯色阅读框：--card-bg 由 PHP 生成（可含渐变） ---- */
.post-layout.card-color .post-content,
.comments-area.card-color .comments-card {
    background: var(--card-bg, #faf6ea) !important;
    border: 1px solid color-mix(in srgb, var(--card-bg, #faf6ea) 100%, transparent) !important;
    box-shadow: 0 26px 70px -30px rgba(12, 8, 4, .7) !important;
}
.post-layout.card-color.ink-dark .post-content,
.comments-area.card-color.ink-dark .comments-card { border-color: rgba(28, 22, 12, .14) !important; }
.post-layout.card-color:not(.ink-dark) .post-content,
.comments-area.card-color:not(.ink-dark) .comments-card { border-color: rgba(255, 255, 255, .16) !important; }

/* ---- 毛玻璃阅读框：--cg-tint 底色 / --cg-op 不透明度 / --cg-blur 模糊 ---- */
.post-layout.card-glass .post-content,
.comments-area.card-glass .comments-card {
    background: color-mix(in srgb, var(--cg-tint, #1a2340) calc(var(--cg-op, 58) * 1%), transparent) !important;
    backdrop-filter: blur(var(--cg-blur, 14px)) saturate(1.2) !important;
    -webkit-backdrop-filter: blur(var(--cg-blur, 14px)) saturate(1.2) !important;
    border: 1px solid color-mix(in srgb, var(--cg-tint, #1a2340) 55%, rgba(255, 255, 255, .22)) !important;
}

/* ---- 图片阅读框：--ci-img 图 / --ci-ov 蒙层色 / --ci-op 蒙层强度 / --ci-blur 图片模糊 ---- */
.post-layout.card-image .post-content,
.comments-area.card-image .comments-card {
    isolation: isolate;
    background: linear-gradient(180deg,
        color-mix(in srgb, var(--ci-ov, #faf6ea) calc(var(--ci-op, 78) * .82%), transparent),
        color-mix(in srgb, var(--ci-ov, #faf6ea) calc(var(--ci-op, 78) * 1%), transparent)) !important;
    border: 1px solid rgba(255, 255, 255, .18) !important;
    box-shadow: 0 26px 70px -30px rgba(12, 8, 4, .7) !important;
}
.post-layout.card-image.ink-dark .post-content,
.comments-area.card-image.ink-dark .comments-card { border-color: rgba(28, 22, 12, .14) !important; }
.post-layout.card-image .post-content::before,
.comments-area.card-image .comments-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    z-index: -1;
    pointer-events: none;
    background: var(--ci-img, none) center / cover no-repeat;
    filter: blur(var(--ci-blur, 0px));
}

/* ==========================================================================
   墨色系统 ink-dark：阅读框为浅底（纸/浅色/浅蒙层图片）时，正文与评论转深墨
   ========================================================================== */
.ink-dark .post-content .markdown { color: #3b3427; }
.ink-dark .post-content .markdown h1,
.ink-dark .post-content .markdown h2,
.ink-dark .post-content .markdown h3 { color: #2b2517; }
.ink-dark .post-content .markdown h4 { color: #4a4232; }
.ink-dark .post-content .markdown a { color: #4a5fb8; }
.ink-dark .post-content .markdown a:hover { color: #37488f; }
.ink-dark .post-content .markdown blockquote {
    color: #5c5240;
    background: rgba(133, 106, 55, .10) !important;
    border-left-color: #a9863f;
}
.ink-dark .post-content .markdown code {
    color: #7c4a1d;
    background: rgba(133, 106, 55, .14);
}
/* 代码块保持深色：纸上嵌一块「屏幕」，层次分明 */
.ink-dark .post-content .markdown pre,
.ink-dark .post-content .markdown pre code {
    color: #e6edf7;
    background: #1c2230;
}
.ink-dark .post-content .markdown pre {
    border: 1px solid rgba(20, 16, 10, .5);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04);
}
.ink-dark .post-content .markdown table { border-color: rgba(122, 100, 58, .3); }
.ink-dark .post-content .markdown table th { background: rgba(133, 106, 55, .12); color: #2b2517; }
.ink-dark .post-content .markdown table td { border-color: rgba(122, 100, 58, .2); }
.ink-dark .post-content .markdown img {
    background: #fff;
    border: 1px solid rgba(122, 100, 58, .22);
    box-shadow: 0 6px 18px -10px rgba(20, 14, 6, .5);
}
.ink-dark .post-content .markdown hr { border-color: rgba(122, 100, 58, .3); }
.ink-dark .post-adjacent { border-top-color: rgba(122, 100, 58, .3); }
.ink-dark .post-adjacent a { color: #5c5240; }

/* ---- 评论区墨色 ---- */
.ink-dark .comments-card .section-title { color: #2b2517; }
.ink-dark .comments-card .nc-count { color: #8a7d63; }
.ink-dark .nc-item { border-top-color: rgba(122, 100, 58, .18); }
.ink-dark .nc-name { color: #4a5fb8; }
.ink-dark .nc-text { color: #3b3427; }
.ink-dark .nc-time { color: #8a7d63; }
.ink-dark .nc-reply { color: #8a7d63; }
.ink-dark .nc-reply:hover { color: #4a5fb8; background: rgba(74, 95, 184, .08); }
.ink-dark .nc-avatar { box-shadow: inset 0 0 0 1px rgba(255, 252, 240, .3); }
/* 提高选择器优先级（.comments-area.ink-dark）压过 body.light，浅底卡下输入框保持纸色 */
.comments-area.ink-dark .nc-form textarea.nc-text,
.comments-area.ink-dark .nc-nick {
    background: rgba(133, 106, 55, .07);
    border-color: rgba(122, 100, 58, .22);
    color: #3b3427;
}
.comments-area.ink-dark .nc-form textarea.nc-text:focus,
.comments-area.ink-dark .nc-nick:focus { border-color: #4a5fb8; box-shadow: 0 0 0 3px rgba(74, 95, 184, .12); }
.comments-area.ink-dark .nc-form textarea.nc-text::placeholder,
.comments-area.ink-dark .nc-nick::placeholder { color: #a89a7d; }
.comments-area.ink-dark .nc-send {
    background: linear-gradient(120deg, #8a6a2f, #a9863f);
    color: #fdf9ee;
}
.comments-area.ink-dark .nc-cancel { background: rgba(122, 100, 58, .16); color: #8a7d63; }
.ink-dark .nc-empty { color: #8a7d63; }
.ink-dark .nc-badge { background: #a9863f; }
.ink-dark .comment-list .comment-list { border-left-color: rgba(122, 100, 58, .25); }

/* 相关阅读卡：跟随阅读框风格 */
.related-section.card-paper .related-head,
.related-section.ink-dark .related-head { color: #d8cdb4; }
.related-section.card-paper .related-card {
    background: color-mix(in srgb, var(--card-tint, #faf6ea) 93%, transparent) !important;
    border-color: color-mix(in srgb, var(--card-tint, #faf6ea) 80%, #8a7050) !important;
}
.related-section.ink-dark .related-card .r-title { color: #3b3427; }
.related-section.ink-dark .related-card .r-meta { color: #8a7d63; }

/* ---- 浅色模式：纸感桌面与阅读框自动转浅（跟随自定义色） ---- */
body.light .read-paper {
    background:
        radial-gradient(120% 80% at 50% 0%, rgba(255, 250, 235, .8), transparent 55%),
        linear-gradient(180deg, color-mix(in srgb, var(--pt1, #302a20) 26%, #f4efe2), color-mix(in srgb, var(--pt2, #211c14) 18%, #efe8d8));
}
body.light .read-paper::before { opacity: calc(var(--pgrain, 50) / 100 * .35); mix-blend-mode: multiply; }
body.light .read-paper::after { background: radial-gradient(140% 100% at 50% 40%, transparent 60%, rgba(120, 95, 55, .14) 100%); }
body.light .post-layout.card-paper .post-content,
body.light .comments-area.card-paper .comments-card {
    background: linear-gradient(180deg, color-mix(in srgb, var(--card-tint, #faf6ea) 55%, #fff), color-mix(in srgb, var(--card-tint, #faf6ea) 82%, #fff)) !important;
    border-color: color-mix(in srgb, var(--card-tint, #faf6ea) 76%, #8a7050) !important;
}
body.light .related-section.card-paper .related-card {
    background: color-mix(in srgb, var(--card-tint, #faf6ea) 60%, #fff) !important;
    border-color: color-mix(in srgb, var(--card-tint, #faf6ea) 76%, #8a7050) !important;
}

/* ==========================================================================
   v2.3 纸感全站协调（Q1）：paper-on 时全局玻璃 UI 暖化
   思路：不是让信纸卡迁就冷色蓝紫玻璃，而是整站玻璃迁就牛皮纸桌面——
   导航胶囊 / 页脚 / 浮动按钮 / 侧栏卡片统一切换暖棕书房色，
   顶部进度条换金棕，文字变量同步暖化，全页形成一间完整的「书房」
   ========================================================================== */
body.paper-on {
    --text: #ece4d2;
    --text-dim: #b3a688;
    --glass-bg: rgba(41, 34, 22, .55);
    --glass-bg-strong: rgba(33, 27, 17, .80);
    --glass-border: rgba(210, 184, 135, .16);
    --shadow: 0 18px 50px -20px rgba(15, 10, 4, .7);
}
body.paper-on .progress { background: linear-gradient(90deg, #b98a3e, #d9b06a); }
body.paper-on .nav-inner { background: rgba(35, 29, 18, .62); }
body.paper-on .nav.is-scrolled .nav-inner { background: rgba(28, 23, 14, .84); }
body.paper-on .site-footer { color: #9d9074; }
body.paper-on .site-footer a { color: #bfa96f; }
body.paper-on .backtop,
body.paper-on .music-player,
body.paper-on .toc-fab { border-color: rgba(210, 184, 135, .2); }
body.paper-on ::selection { background: rgba(169, 134, 63, .4); color: #fff; }
/* 侧栏卡片：桌面上的暖色工具（原 v2.2 深棕微调保留，此处与全局变量同源） */
body.paper-on .post-side .side-card,
body.paper-on .post-toc {
    background: rgba(41, 34, 22, .62) !important;
    border-color: rgba(210, 184, 135, .16) !important;
}
/* 搜索面板（Ctrl+K）同为玻璃，一并暖化 */
body.paper-on .search-panel { background: rgba(33, 27, 17, .92) !important; border-color: rgba(210, 184, 135, .18) !important; }

/* ---- 浅色 + 纸感：整页米白书房 ---- */
body.paper-on.light {
    --text: #3b3427;
    --text-dim: #8a7d63;
    --glass-bg: rgba(255, 251, 240, .62);
    --glass-bg-strong: rgba(255, 252, 244, .88);
    --glass-border: rgba(122, 100, 58, .16);
    --shadow: 0 18px 50px -22px rgba(90, 70, 35, .35);
}
body.paper-on.light .progress { background: linear-gradient(90deg, #a9863f, #caa25c); }
body.paper-on.light .nav-inner { background: rgba(255, 251, 240, .72); }
body.paper-on.light .nav.is-scrolled .nav-inner { background: rgba(255, 252, 244, .9); }
body.paper-on.light .site-footer { color: #8a7d63; }
body.paper-on.light .site-footer a { color: #7a6a45; }
body.paper-on.light .backtop,
body.paper-on.light .music-player,
body.paper-on.light .toc-fab { border-color: rgba(122, 100, 58, .18); }
body.paper-on.light ::selection { background: rgba(169, 134, 63, .3); color: #3b3427; }
body.paper-on.light .post-side .side-card,
body.paper-on.light .post-toc {
    background: rgba(255, 252, 244, .82) !important;
    border-color: rgba(122, 100, 58, .16) !important;
}
body.paper-on.light .search-panel { background: rgba(255, 252, 244, .96) !important; border-color: rgba(122, 100, 58, .18) !important; }
/* 浅色纸感下侧栏 TOC 链接色同步暖化（覆盖 v1.6 冷色 #a9b6cc） */
body.paper-on.light .toc-body a { color: #8a7d63; }

/* ==========================================================================
   v3.0 desk-on：大背景为 纯色/图片 且开启「UI 融合」时，全站玻璃跟随 --desk-tint
   --desk-tint 由 header.php 依据后台配置注入 body；浅色桌面自动 desk-light
   ========================================================================== */
body.desk-on:not(.light) {
    --glass-bg: color-mix(in srgb, var(--desk-tint, #141a30) 55%, transparent);
    --glass-bg-strong: color-mix(in srgb, var(--desk-tint, #141a30) 80%, transparent);
    --glass-border: color-mix(in srgb, var(--desk-tint, #141a30) 60%, rgba(255, 255, 255, .2));
    --shadow: 0 18px 50px -20px rgba(0, 0, 0, .6);
}
body.desk-on:not(.light) .nav-inner { background: color-mix(in srgb, var(--desk-tint, #141a30) 62%, transparent); }
body.desk-on:not(.light) .nav.is-scrolled .nav-inner { background: color-mix(in srgb, var(--desk-tint, #141a30) 84%, transparent); }
body.desk-on:not(.light) .site-footer { color: color-mix(in srgb, var(--desk-tint, #141a30) 30%, #aab4c8); }
body.desk-on:not(.light) .site-footer a { color: color-mix(in srgb, var(--desk-tint, #141a30) 20%, #c8d2e4); }
body.desk-on:not(.light) .backtop,
body.desk-on:not(.light) .music-player,
body.desk-on:not(.light) .toc-fab {
    border-color: color-mix(in srgb, var(--desk-tint, #141a30) 55%, rgba(255, 255, 255, .24));
}
body.desk-on:not(.light) .post-side .side-card,
body.desk-on:not(.light) .post-toc {
    background: color-mix(in srgb, var(--desk-tint, #141a30) 62%, transparent) !important;
}
body.desk-on:not(.light) .search-panel {
    background: color-mix(in srgb, var(--desk-tint, #141a30) 92%, transparent) !important;
    border-color: color-mix(in srgb, var(--desk-tint, #141a30) 65%, rgba(255, 255, 255, .22)) !important;
}
body.desk-on:not(.light) ::selection { background: color-mix(in srgb, var(--desk-tint, #141a30) 45%, rgba(255, 255, 255, .18)); color: #fff; }

/* 浅色桌面：玻璃 UI 整体转浅 + 深字 */
body.desk-on.desk-light {
    --text: #2c3550;
    --text-dim: #5b6678;
    --glass-bg: color-mix(in srgb, var(--desk-tint, #f0ead8) 62%, transparent);
    --glass-bg-strong: color-mix(in srgb, var(--desk-tint, #f0ead8) 88%, transparent);
    --glass-border: rgba(28, 35, 51, .13);
    --shadow: 0 18px 50px -22px rgba(60, 50, 30, .35);
}
body.desk-on.desk-light .nav-inner { background: color-mix(in srgb, var(--desk-tint, #f0ead8) 72%, transparent); }
body.desk-on.desk-light .nav.is-scrolled .nav-inner { background: color-mix(in srgb, var(--desk-tint, #f0ead8) 90%, transparent); }
body.desk-on.desk-light .site-footer { color: #5b6678; }
body.desk-on.desk-light .site-footer a { color: #3b4664; }
body.desk-on.desk-light .backtop,
body.desk-on.desk-light .music-player,
body.desk-on.desk-light .toc-fab { border-color: rgba(28, 35, 51, .18); }
body.desk-on.desk-light .post-side .side-card,
body.desk-on.desk-light .post-toc {
    background: color-mix(in srgb, var(--desk-tint, #f0ead8) 66%, transparent) !important;
}
body.desk-on.desk-light .search-panel {
    background: color-mix(in srgb, var(--desk-tint, #f0ead8) 96%, transparent) !important;
    border-color: rgba(28, 35, 51, .15) !important;
}
body.desk-on.desk-light ::selection { background: color-mix(in srgb, var(--desk-tint, #f0ead8) 55%, rgba(28, 35, 51, .3)); color: #222b3d; }

/* ==========================================================================
   v2.4 关于页
   ========================================================================== */

.about-hero { max-width: 1240px; margin: 0 auto; padding: 130px 20px 26px; }
.about-hero-card {
    display: flex;
    align-items: center;
    gap: 26px;
    padding: 30px 34px;
}
.about-avatar {
    width: 96px;
    height: 96px;
    border-radius: 999px;
    object-fit: cover;
    border: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
    flex-shrink: 0;
}
.about-avatar-text {
    display: grid;
    place-items: center;
    background: linear-gradient(120deg, var(--accent), var(--accent2));
    color: #fff;
    font-family: var(--serif);
    font-size: 40px;
    font-weight: 700;
}
.about-name { font-family: var(--serif); font-size: 28px; font-weight: 700; }
.about-tagline { color: var(--text-dim); margin-top: 4px; font-size: 15px; }
.about-socials { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }

.about-body {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px 40px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 22px;
    align-items: start;
}
.about-main { padding: 34px 38px; }
.about-side { position: sticky; top: 84px; display: flex; flex-direction: column; gap: 14px; }
.about-skills { display: flex; flex-wrap: wrap; gap: 8px; }

.tl-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.tl-list li { position: relative; padding-left: 18px; }
.tl-list li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 7px;
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: linear-gradient(120deg, var(--accent), var(--accent2));
}
.tl-list li::after {
    content: "";
    position: absolute;
    left: 5px;
    top: 18px;
    bottom: -12px;
    width: 1px;
    background: rgba(219, 228, 255, .14);
}
.tl-list li:last-child::after { display: none; }
.tl-year { font-size: 12px; color: var(--accent); font-family: var(--mono); }
.tl-title { display: block; font-size: 14px; font-weight: 600; margin-top: 2px; }
.tl-desc { font-size: 12.5px; color: var(--text-dim); margin-top: 2px; }

body.light .about-hero-card, body.light .about-main { background: rgba(255, 255, 255, .85) !important; }
body.light .about-name { color: #171e30; }

@media (max-width: 960px) {
    .about-body { grid-template-columns: 1fr; }
    .about-side { position: static; }
    .about-hero { padding-top: 110px; }
}

/* ==========================================================================
   v2.7 首页文章区大框背景（listbg，后台可配）
   ========================================================================== */
.feed-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: 28px 28px 0 0;
    overflow: hidden;
}
.feed-bg.feed-bg-img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(10, 15, 32, calc(var(--rb-tintop, 0) / 100)), rgba(10, 15, 32, calc(var(--fb-dim, 38) / 100));
    backdrop-filter: blur(var(--fb-blur, 0px));
    -webkit-backdrop-filter: blur(var(--fb-blur, 0px));
}
/* 配置了 listbg 后替代默认 ::before 画布 */
.post-section.has-feedbg::before { display: none; }

/* ==========================================================================
   v3.2 首页第二屏分组底框（feedcard：card 文章卡 / side 侧栏块 / notice 公告条）
   ========================================================================== */
body.feedcard-on .post-section #postStream .post-card,
body.feedcard-on .post-section #featuredGrid .featured-card,
body.feedcard-on .post-section .cat-card,
body.feedcard-on .post-section .cat-tabs .cat-tab.active {
    background: var(--fc-card-bg, rgba(54, 66, 99, .82)) !important;
    border: var(--fc-card-bw, 1px) solid var(--fc-card-bd, rgba(210, 222, 255, .24)) !important;
    border-radius: var(--fc-card-radius, 16px) !important;
}
body.feedcard-on .post-section #postStream .post-card:hover,
body.feedcard-on .post-section #featuredGrid .featured-card:hover {
    background: var(--fc-card-bg, rgba(54, 66, 99, .82)) !important;
    border-color: color-mix(in srgb, var(--fc-card-bd, rgba(210, 222, 255, .24)) 55%, #ffffff) !important;
}
body.feedcard-on .post-section .cs-block {
    background: var(--fc-side-bg, rgba(54, 66, 99, .82)) !important;
    border: var(--fc-side-bw, 1px) solid var(--fc-side-bd, rgba(210, 222, 255, .24)) !important;
    border-radius: var(--fc-side-radius, 16px) !important;
}
body.feedcard-on .post-section .widget-notice {
    background: var(--fc-notice-bg, rgba(54, 66, 99, .82)) !important;
    border: var(--fc-notice-bw, 1px) solid var(--fc-notice-bd, rgba(210, 222, 255, .24)) !important;
    border-radius: var(--fc-notice-radius, 16px) !important;
}

/* ==========================================================================
   v3.1 文章区大框：inherit 无缝模式 + 图片懒加载淡入
   ========================================================================== */
/* inherit：大框透明，全站大背景贯穿到底，卡片直接浮上——无断层 */
.feed-bg.feed-bg-inherit { border-radius: 0; }
.post-section.has-feedbg .feed-bg-inherit + * { position: relative; }

/* 图片模式：img 懒加载 + 淡入；顶部 170px 渐隐露出全站大背景，
   换图衔接处做柔和过渡，消除断层割裂感 */
.feed-bg-img { background: transparent !important; }
.feed-bg.feed-bg-img {
    -webkit-mask-image: linear-gradient(180deg, transparent 0, rgba(0, 0, 0, .4) 64px, #000 170px);
    mask-image: linear-gradient(180deg, transparent 0, rgba(0, 0, 0, .4) 64px, #000 170px);
}
.feed-bg-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0;
    transition: opacity .8s ease;
}
.feed-bg-img img.loaded { opacity: 1; }
.feed-bg-img::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(10, 15, 32, calc(var(--rb-tintop, 0) / 100)), rgba(10, 15, 32, calc(var(--fb-dim, 38) / 100)));
    backdrop-filter: blur(var(--fb-blur, 0px));
    -webkit-backdrop-filter: blur(var(--fb-blur, 0px));
}

/* 全站 desk 照片层淡入：.read-bg 底部铺占位渐变（PHP 按图片主色生成），
   照片解码完成后淡入叠上——加载全程背景颜色连续，无深色闪变 */
.read-bg-photo {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity .7s ease;
}
.read-bg-photo.loaded { opacity: 1; }
@media (prefers-reduced-motion: reduce) { .read-bg-photo { transition: none; } }

/* ==========================================================================
   v3.3 首页外观设置（appearance，后台「首页外观」面板）
   仅 body.ap-on 时生效，停用即恢复主题默认；变量由 header.php 输出到 body style
   ========================================================================== */

/* ① 顶部导航栏（全站共用） */
body.ap-on .nav-inner {
    background: var(--ap-nav-bg) !important;
    -webkit-backdrop-filter: blur(var(--ap-nav-blur)) saturate(1.6) !important;
    backdrop-filter: blur(var(--ap-nav-blur)) saturate(1.6) !important;
    border: var(--ap-nav-bw) solid var(--ap-nav-bd) !important;
    border-radius: var(--ap-nav-radius) !important;
}
body.ap-on .nav.is-scrolled .nav-inner { background: var(--ap-nav-bg) !important; }
body.ap-on .nav-logo {
    color: var(--ap-nav-logo) !important;
    font-size: var(--ap-nav-logo-fs) !important;
}
body.ap-on .nav-menu a {
    color: var(--ap-nav-menu) !important;
    font-size: var(--ap-nav-menu-fs) !important;
}
body.ap-on .nav-menu a:hover { color: var(--ap-nav-menu-hover) !important; }
body.ap-on .nav-menu a.active {
    color: var(--ap-nav-active) !important;
    background: var(--ap-nav-active-bg) !important;
}
body.ap-on .nav-actions .icon-btn { color: var(--ap-nav-icon) !important; }

/* ② 分类块（首页侧栏「分类」标题 / 列表 / 计数徽章） */
body.ap-on .cat-side .cs-block:not(.cs-tags-block) .cs-head {
    color: var(--ap-cat-head) !important;
    font-size: var(--ap-cat-head-fs) !important;
}
body.ap-on .cat-side .cs-block:not(.cs-tags-block) .cs-item {
    color: var(--ap-cat-item) !important;
    font-size: var(--ap-cat-item-fs) !important;
}
body.ap-on .cat-side .cs-block:not(.cs-tags-block) .cs-item i {
    color: var(--ap-cat-count) !important;
    background: var(--ap-cat-count-bg) !important;
    border-radius: var(--ap-cat-count-radius) !important;
    padding: 1px 8px !important;
}

/* ③ 标签块（首页侧栏「标签」标题 / 标签胶囊） */
body.ap-on .cat-side .cs-tags-block .cs-head {
    color: var(--ap-tag-head) !important;
    font-size: var(--ap-tag-head-fs) !important;
}
body.ap-on .cat-side .cs-tags-block .chip {
    color: var(--ap-tag) !important;
    font-size: var(--ap-tag-fs) !important;
    background: var(--ap-tag-bg) !important;
    border: var(--ap-tag-bw) solid var(--ap-tag-bd) !important;
    border-radius: var(--ap-tag-radius) !important;
}

/* ④ 文章封面（首页 / 归档页文章卡顶部封面区） */
body.ap-on .post-section .post-card .card-cover {
    height: var(--ap-cover-h) !important;
    opacity: var(--ap-cover-op) !important;
    border-radius: var(--ap-cover-radius) var(--ap-cover-radius) 0 0 !important;
}
body.ap-on .post-section .post-card .card-cover::after {
    background: linear-gradient(180deg, transparent 30%, rgba(10, 14, 28, var(--ap-cover-shade)) 100%) !important;
}

/* ⑤ 卡片元数据（日期 · 分类 · 继续阅读） */
body.ap-on .post-section .card-meta {
    color: var(--ap-meta) !important;
    font-size: var(--ap-meta-fs) !important;
}
body.ap-on .post-section .card-more { color: var(--ap-more) !important; }

/* PDF 文章嵌入样式 */
.markdown .pdf-wrap { margin: 1.4em 0; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--glass-border); background: rgba(127,155,220,.06); }
.markdown .pdf-frame { width: 100%; height: min(860px, 78vh); border: none; display: block; }
.markdown a.pdf-download {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 16px; border-radius: 999px;
    border: 1px solid rgba(138,180,255,.4); font-size: 13px;
}