/* ==========================================================================
   具身星球 — 编辑部索引风样式
   纸面 + 墨色 + 单一靛蓝强调，直角容器，mono 小字承载元信息
   ========================================================================== */

:root {
    /* 纸面 */
    --paper: #fbfaf8;
    --surface: #ffffff;
    --surface-2: #f4f2ee;

    /* 分隔线 */
    --rule: #e6e3dd;
    --rule-strong: #d6d2ca;

    /* 墨色 */
    --ink: #16181d;
    --ink-2: #5a6170;
    --ink-3: #8b92a0;
    --on-ink: #ffffff;

    /* 强调（主色） */
    --accent: #2f5d8c;
    --accent-hover: #24486e;
    --accent-soft: #edf2f8;

    /* 字体 */
    --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia,
        "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
        "Liberation Mono", monospace;

    /* 尺度 */
    --wrap: 800px;
    --wrap-read: 720px;
    --radius: 4px;
    --header-h: 60px;
}

/* ---------- 基础 ---------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.wrap {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--accent);
    text-decoration: none;
}
a:hover {
    color: var(--accent-hover);
}

button {
    font-family: inherit;
}

[hidden] {
    display: none !important;
}

/* 等宽小字：元信息统一语汇 */
.mono {
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.06em;
    color: var(--ink-3);
}
.mono-sm {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-3);
}

/* ---------- 图标 ---------- */

.i {
    width: 1em;
    height: 1em;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
    vertical-align: -0.125em;
}
.i--fill {
    fill: currentColor;
    stroke: none;
}
.i--xs {
    font-size: 9px;
    stroke-width: 2.2;
}

/* ---------- 页头 ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(251, 250, 248, 0.86);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--rule);
}

.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: var(--header-h);
}

.brand {
    display: flex;
    align-items: center;
    gap: 11px;
    min-width: 0;
    color: var(--ink);
}
.brand:hover {
    color: var(--ink);
}
.brand-logo {
    flex: 0 0 auto;
    display: block;
    width: 32px;
    height: 32px;
    border-radius: 8px;
}
.brand-title {
    font-size: 15.5px;
    font-weight: 650;
    letter-spacing: -0.01em;
    line-height: 1.25;
    white-space: nowrap;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 0 0 auto;
}

.nav-link-quiet {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 11px;
    font-size: 13.5px;
    color: var(--ink-2);
    border-radius: var(--radius);
    background: none;
    border: 0;
    cursor: pointer;
    white-space: nowrap;
}
.nav-link-quiet:hover {
    background: var(--surface-2);
    color: var(--ink);
}
.nav-link-quiet .i {
    font-size: 12px;
    color: var(--ink-3);
}
.nav-link-quiet.is-current {
    color: var(--accent);
}
.nav-link-quiet.is-current .i {
    color: var(--accent);
}

/* 语言切换 */
.lang-switch {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--rule-strong);
    border-radius: 999px;
    padding: 2px;
    background: var(--surface);
}
.lang-switch a,
.lang-switch button {
    padding: 3px 11px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--ink-3);
    border-radius: 999px;
    line-height: 1.6;
    background: none;
    border: 0;
    cursor: pointer;
}
.lang-switch a:hover,
.lang-switch button:hover {
    color: var(--ink);
}
.lang-switch .is-active {
    background: var(--ink);
    color: var(--on-ink);
}

/* ---------- 页头下拉 ---------- */

.dropdown {
    position: relative;
}
.dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 60;
    margin: 0;
    padding: 5px;
    list-style: none;
    min-width: 176px;
    background: var(--surface);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(22, 24, 29, 0.08);
    display: none;
}
.dropdown-menu.is-open {
    display: block;
}
.dropdown-menu-end {
    left: auto;
    right: 0;
}
.dropdown-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 7px 10px;
    border-radius: 3px;
    font-size: 13.5px;
    color: var(--ink-2);
    cursor: pointer;
    background: none;
    border: 0;
    width: 100%;
    text-align: left;
    font-family: inherit;
}
.dropdown-item:hover {
    background: var(--surface-2);
    color: var(--ink);
}
.dropdown-item .i {
    width: 14px;
    font-size: 12px;
    color: var(--ink-3);
}
.dropdown-item.is-current,
.dropdown-item.is-current .i {
    color: var(--accent);
}

/* ---------- 首页头部 ---------- */

.page-head {
    padding: 38px 0 0;
}
/* 报头式：标题左、计数右，两端对齐撑满；靠 wrap + 列间距自然折行 */
.page-head-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    column-gap: 32px;
    row-gap: 6px;
    margin-bottom: 22px;
}
.page-title {
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 600;
    letter-spacing: -0.015em;
    line-height: 1.28;
    margin: 0;
    min-width: 0;
}
.page-meta {
    margin: 0;
    flex: 0 0 auto;
}

/* 文字 Tab 筛选 */
.filter-tabs {
    display: flex;
    gap: 24px;
    border-bottom: 1px solid var(--rule);
}
.filter-tabs a,
.filter-tabs button {
    position: relative;
    padding: 0 0 10px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--ink-3);
    line-height: 1.5;
    background: none;
    border: 0;
    cursor: pointer;
}
.filter-tabs a:hover,
.filter-tabs button:hover {
    color: var(--ink);
}
.filter-tabs .is-active {
    color: var(--accent);
}
.filter-tabs .is-active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: var(--accent);
}

/* ---------- 首页情报入口条 ---------- */

/* 整块一个容器（白底 + 1px 细边框 + 直角），格子之间用竖线分隔 */
.home-tools {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    margin: 20px 0 4px;
    background: var(--surface);
    border: 1px solid var(--rule);
}
.tools-cell {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 14px 18px;
    color: var(--ink);
    min-width: 0;
}
.tools-cell + .tools-cell {
    border-left: 1px solid var(--rule);
}
.tools-cell:hover {
    color: var(--ink);
    background: var(--surface-2);
}
.tools-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--ink-3);
}
.tools-tag .i {
    font-size: 11px;
}
/* 主打格：只用标签颜色区分，不画边框线 */
.tools-cell.is-lead .tools-tag,
.tools-cell.is-lead .tools-tag .i {
    color: var(--accent);
}
.tools-title {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.4;
}
.tools-cell:hover .tools-title {
    color: var(--accent);
}
.tools-desc {
    font-size: 12.5px;
    line-height: 1.55;
    color: var(--ink-2);
}

/* ---------- 情报页互提导航 ---------- */

.intel-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 20px;
    margin: 32px 0 8px;
    padding-top: 18px;
    border-top: 1px solid var(--rule);
}
.intel-nav-label {
    color: var(--ink-3);
}
.intel-nav-link {
    font-size: 13.5px;
    color: var(--accent);
}
.intel-nav-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* ---------- 文章列表 ---------- */

.post-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.post-item {
    position: relative;
    border-bottom: 1px solid var(--rule);
    padding: 24px 0 22px;
}
.post-item:last-child {
    border-bottom: 0;
}
/* hover：左侧强调竖线 */
.post-item::before {
    content: "";
    position: absolute;
    left: -20px;
    top: 24px;
    bottom: 22px;
    width: 2px;
    background: var(--accent);
    opacity: 0;
    transition: opacity 0.15s ease;
}
.post-item:hover::before {
    opacity: 1;
}

.post-title {
    font-family: var(--font-serif);
    font-size: 19px;
    font-weight: 600;
    line-height: 1.38;
    letter-spacing: -0.01em;
    margin: 0;
    color: var(--ink);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.15s ease;
}
/* 标题链接继承标题色，避免整屏标题都是强调色 */
.post-title a {
    color: inherit;
}
.post-item:hover .post-title,
.post-title a:hover {
    color: var(--accent);
}

.post-desc {
    margin: 7px 0 0;
    font-size: 14px;
    line-height: 1.68;
    color: var(--ink-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 关键词 */
.post-tags {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 8px;
}
.post-tags span {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    color: var(--ink-3);
}

/* 元信息行 */
.post-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 11px;
}
.post-meta .dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--rule-strong);
    flex: 0 0 auto;
}

.author {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--ink-2);
}
.author:hover {
    color: var(--ink);
}
/* 无头像时用墨色圆底 + 首字母兜底 */
.author-avatar-fallback {
    width: var(--avatar-size, 20px);
    height: var(--avatar-size, 20px);
    border-radius: 50%;
    background: var(--ink);
    color: var(--on-ink);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    flex: 0 0 auto;
}

/* 幽灵按钮：速览 */
.btn-ghost {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 11px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    color: var(--ink-2);
    background: transparent;
    border: 1px solid var(--rule-strong);
    border-radius: 999px;
    cursor: pointer;
    line-height: 1.6;
    transition: background 0.15s ease, border-color 0.15s ease;
}
.btn-ghost:hover {
    background: var(--surface-2);
    border-color: var(--ink-3);
    color: var(--ink);
}
.btn-ghost .i {
    font-size: 10px;
}

/* 空态 */
.list-empty {
    padding: 64px 0 72px;
    text-align: center;
    color: var(--ink-3);
    font-size: 14px;
}

/* ---------- 分页 ---------- */

.pager {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1px;
    padding: 32px 0 8px;
}
.pager a,
.pager span,
.pager button {
    font-family: var(--font-mono);
    font-size: 12.5px;
    min-width: 30px;
    height: 32px;
    padding: 0 7px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--ink-2);
    border-radius: var(--radius);
    line-height: 1;
    background: none;
    border: 0;
    cursor: pointer;
}
.pager a:hover,
.pager button:hover {
    background: var(--surface-2);
    color: var(--ink);
}
.pager .is-current {
    color: var(--accent);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-thickness: 2px;
}
.pager .is-gap {
    color: var(--ink-3);
    min-width: 20px;
    padding: 0;
    cursor: default;
}
.pager .is-disabled {
    color: var(--rule-strong);
    cursor: default;
}
.pager .is-disabled:hover {
    background: none;
}
.pager-mobile {
    display: none;
    gap: 14px;
    align-items: center;
}

/* ---------- 面包屑 ---------- */

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: nowrap;
    padding: 24px 0 18px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.07em;
    color: var(--ink-3);
    min-width: 0;
}
.breadcrumb-item {
    color: var(--ink-3);
    flex: 0 0 auto;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
a.breadcrumb-item:hover {
    color: var(--accent);
}
/* 当前页：更深的墨色 + 允许收缩，省略号只落在当前页标题上 */
.breadcrumb-item.is-current {
    color: var(--ink-2);
    flex: 1 1 auto;
    min-width: 0;
}
.breadcrumb-sep {
    color: var(--rule-strong);
    flex: 0 0 auto;
    user-select: none;
}
.breadcrumb + .page-head {
    padding-top: 0;
}

/* ---------- 日报 / 周报面板 ---------- */

.digest-page {
    padding-bottom: 8px;
}

.digest-panel {
    background: var(--surface);
    border: 1px solid var(--rule);
}

.digest-head {
    padding: 32px 38px 24px;
    border-bottom: 1px solid var(--rule);
}
.digest-title {
    font-family: var(--font-serif);
    font-size: 27px;
    font-weight: 600;
    line-height: 1.32;
    letter-spacing: -0.018em;
    margin: 0 0 12px;
}
.digest-desc {
    margin: 0;
    font-size: 14.5px;
    line-height: 1.72;
    color: var(--ink-2);
}
.digest-latest-hint {
    margin: 14px 0 0;
}

/* 期数选择器：与附注栏同手法——通栏分隔带，内部文字内缩对齐正文列 */
.dg-cal {
    border-bottom: 1px solid var(--rule);
}
.dg-cal-summary {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 38px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.06em;
    color: var(--ink-2);
    cursor: pointer;
    user-select: none;
    list-style: none;
}
.dg-cal-summary::-webkit-details-marker {
    display: none;
}
.dg-cal-summary:hover {
    color: var(--accent);
}
.dg-cal-summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}
.dg-cal-summary-label {
    font-weight: 500;
}
.dg-cal-summary-meta {
    margin-left: auto;
}
.dg-cal-caret {
    font-size: 9px;
    transition: transform 0.15s ease;
}
.dg-cal[open] .dg-cal-caret {
    transform: rotate(180deg);
}
.dg-cal-body {
    padding: 0 38px 20px;
}

/* 日历 */
.dg-cal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}
.dg-cal-title {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--ink);
}
.dg-cal-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    color: var(--ink-3);
    background: none;
    cursor: pointer;
    padding: 0;
}
.dg-cal-nav:hover {
    border-color: var(--ink-3);
    color: var(--ink);
}
.dg-cal-nav .i {
    font-size: 9px;
}
.dg-cal-nav.is-disabled {
    color: var(--rule-strong);
    border-color: var(--rule);
    cursor: default;
}
.dg-cal-nav.is-disabled:hover {
    color: var(--rule-strong);
    border-color: var(--rule);
}
.dg-cal-n {
    position: relative;
    z-index: 1;
}
.dg-cal-grid {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.dg-cal-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}
.dg-cal-w {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.06em;
    color: var(--ink-3);
    padding: 4px 0;
}
.dg-cal-d {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 34px;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink-2);
    background: none;
    border: 0;
    cursor: pointer;
    padding: 0;
}
.dg-cal-d:hover {
    background: var(--surface-2);
    color: var(--ink);
}
.dg-cal-d.is-empty {
    cursor: default;
}
.dg-cal-d.is-empty:hover {
    background: none;
}
.dg-cal-d.is-off {
    color: var(--rule-strong);
    cursor: default;
}
.dg-cal-d.is-off:hover {
    background: none;
}
/* 有内容的日期：底部一个小圆点作标记 */
.dg-cal-d.is-on .dg-cal-dot {
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--accent);
}
.dg-cal-d.is-current {
    background: var(--ink);
    color: var(--on-ink);
    font-weight: 700;
}
.dg-cal-d.is-current:hover {
    background: var(--ink);
    color: var(--on-ink);
}
.dg-cal-d.is-current .dg-cal-dot {
    background: var(--on-ink);
}
.dg-cal-foot {
    margin: 12px 0 0;
}

/* 周列表（周报页用）：与日历同一容器约定，换成纵向条目 */
.dg-week-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--rule);
}
.dg-week-item {
    border-bottom: 1px solid var(--rule);
}
.dg-week-link {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 10px 2px;
    color: var(--ink-2);
    font-size: 13.5px;
}
.dg-week-link:hover {
    color: var(--accent);
}
.dg-week-link.is-current {
    color: var(--accent);
    font-weight: 600;
}
.dg-week-link.is-disabled {
    color: var(--ink-3);
    cursor: default;
}
.dg-week-link.is-disabled:hover {
    color: var(--ink-3);
}
.dg-week-range {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    color: var(--ink-3);
    margin-left: auto;
    flex: 0 0 auto;
}

/* 条目列表 */
.digest-items {
    list-style: none;
    margin: 0;
    padding: 8px 38px 4px;
}
.digest-item {
    display: flex;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--rule);
}
.digest-item:last-child {
    border-bottom: 0;
}
.digest-item-num {
    flex: 0 0 26px;
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 600;
    line-height: 1.45;
    color: var(--rule-strong);
    text-align: right;
}
.digest-item-body {
    min-width: 0;
    flex: 1 1 auto;
}
.digest-item-title {
    font-family: var(--font-serif);
    font-size: 17.5px;
    font-weight: 600;
    line-height: 1.42;
    letter-spacing: -0.01em;
    margin: 0;
}
.digest-item-title a {
    color: var(--ink);
}
.digest-item-title a:hover {
    color: var(--accent);
}
.digest-item-summary {
    margin: 7px 0 0;
    font-size: 14px;
    line-height: 1.7;
    color: var(--ink-2);
}
.digest-item-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}
.digest-item-meta .dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--rule-strong);
}
.digest-merged-note {
    color: var(--ink-3);
}

/* 面板尾部 */
.digest-foot {
    padding: 0 38px 30px;
}
.section-rule {
    border: 0;
    border-top: 1px solid var(--rule);
    margin: 0 0 18px;
}
.digest-share {
    display: flex;
    justify-content: center;
    padding-bottom: 20px;
}
.btn-share {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 14px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.05em;
    color: var(--ink-2);
    background: transparent;
    border: 1px solid var(--rule-strong);
    border-radius: 999px;
    cursor: pointer;
    line-height: 1.7;
    transition: all 0.15s ease;
}
.btn-share:hover {
    border-color: var(--ink-3);
    color: var(--ink);
}
.btn-share .i {
    font-size: 11px;
}

.digest-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
}
.digest-nav-link {
    padding: 16px 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13.5px;
    color: var(--accent);
    min-width: 0;
}
.digest-nav-link:hover {
    color: var(--accent-hover);
}
.digest-nav-link + .digest-nav-link {
    text-align: right;
    align-items: flex-end;
}
.digest-nav-link.is-disabled {
    color: var(--ink-3);
    pointer-events: none;
}
.digest-nav-date {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.08em;
    color: var(--ink-3);
}
.dg-archive-back {
    margin: 18px 0 0;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.06em;
}
.digest-disclaimer {
    margin: 12px 0 0;
    text-align: center;
    font-size: 12px;
    color: var(--ink-3);
}

/* ---------- 静态页 ---------- */

.doc-panel {
    background: var(--surface);
    border: 1px solid var(--rule);
    padding: 34px 38px 40px;
}

.prose {
    font-size: 15.5px;
    line-height: 1.78;
    color: var(--ink);
}
.prose > *:first-child {
    margin-top: 0;
}
.prose p {
    margin: 0 0 1.1em;
}
.prose h2 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.012em;
    line-height: 1.38;
    margin: 1.9em 0 0.7em;
}
.prose ul,
.prose ol {
    margin: 0 0 1.15em;
    padding-left: 1.35em;
}
.prose li {
    margin-bottom: 0.4em;
}
.prose li::marker {
    color: var(--ink-3);
}
.prose a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    text-decoration-color: rgba(47, 93, 140, 0.35);
    word-break: break-word;
}
.prose a:hover {
    text-decoration-color: currentColor;
}
.prose code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--surface-2);
    padding: 0.12em 0.36em;
    border-radius: 3px;
}
.prose hr {
    border: 0;
    border-top: 1px solid var(--rule);
    margin: 2em 0;
}

/* ---------- 弹窗 / 抽屉 / 浮层 ---------- */

/* 遮罩 */
.scrim {
    position: fixed;
    inset: 0;
    z-index: 80;
    background: rgba(22, 24, 29, 0.42);
    opacity: 0;
    transition: opacity 0.18s ease;
}
.scrim.is-open {
    opacity: 1;
}

/* 通用弹窗 */
.modal {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    pointer-events: none;
}
.modal.is-open {
    pointer-events: auto;
}
.modal-dialog {
    position: relative;
    width: 100%;
    max-width: 620px;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--rule);
    box-shadow: 0 20px 60px rgba(22, 24, 29, 0.14);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.18s ease, transform 0.18s ease;
}
.modal.is-open .modal-dialog {
    opacity: 1;
    transform: none;
}
.modal-head {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 26px 16px;
    border-bottom: 1px solid var(--rule);
}
.modal-title {
    flex: 1 1 auto;
    min-width: 0;
    margin: 0;
    font-family: var(--font-serif);
    font-size: 19px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: -0.01em;
}
.modal-body {
    padding: 20px 26px;
    overflow-y: auto;
}
.modal-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 26px;
    border-top: 1px solid var(--rule);
}

.btn-close {
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
    margin: -2px -6px 0 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: none;
    color: var(--ink-3);
    cursor: pointer;
}
.btn-close:hover {
    background: var(--surface-2);
    color: var(--ink);
}
.btn-close .i {
    font-size: 14px;
}

/* 速览正文 */
.preview-body {
    font-size: 14.5px;
    line-height: 1.75;
    color: var(--ink-2);
}
.preview-body > *:first-child {
    margin-top: 0;
}
.preview-body p {
    margin: 0 0 1em;
}
.preview-body h2 {
    font-family: var(--font-serif);
    font-size: 15.5px;
    font-weight: 650;
    color: var(--ink);
    margin: 1.5em 0 0.5em;
    line-height: 1.4;
}
.preview-body ul {
    margin: 0 0 1em;
    padding-left: 1.3em;
}
.preview-body li {
    margin-bottom: 0.35em;
}
.preview-body li::marker {
    color: var(--ink-3);
}
.preview-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 14px 20px;
    margin: 0 0 4px;
    padding: 16px 0 0;
    border-top: 1px solid var(--rule);
}
.preview-facts dt {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 4px;
}
.preview-facts dd {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.5;
    color: var(--ink);
    word-break: break-word;
}
.preview-read {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    color: var(--accent);
}
.preview-read:hover {
    color: var(--accent-hover);
}

/* ---------- 联系我们：二维码 ---------- */

.contact-modal .modal-dialog {
    max-width: 560px;
}
.qr-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.qr-cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    min-width: 0;
}
.qr-frame {
    position: relative;
    width: 100%;
    /* 两张二维码海报实测比例 0.877（微博）与 0.801（微信视频号），
       取 5:6≈0.833 居中，两者各自留白都不到 3%，格子仍能对齐 */
    aspect-ratio: 5 / 6;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--surface-2);
    border: 1px dashed var(--rule-strong);
    overflow: hidden;
}
.qr-frame .i {
    font-size: 26px;
    color: var(--rule-strong);
}
.qr-frame-text {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.08em;
    color: var(--ink-3);
    text-align: center;
    padding: 0 12px;
    line-height: 1.6;
}
/* 真图就位后铺满格子，占位内容隐藏；底色转白，避免留白区读成灰边 */
.qr-frame.has-image {
    border-style: solid;
    background: var(--surface);
}
.qr-frame.has-image .qr-frame-text,
.qr-frame.has-image .i {
    display: none;
}
.qr-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.qr-label {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ink);
}
.qr-label .i {
    font-size: 13px;
    color: var(--ink-3);
}
.qr-handle {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    color: var(--ink-3);
    margin-top: -6px;
}
.contact-note {
    margin: 20px 0 0;
    padding-top: 16px;
    border-top: 1px solid var(--rule);
    font-size: 12.5px;
    line-height: 1.65;
    color: var(--ink-3);
    text-align: center;
}

/* ---------- 抽屉（手机菜单） ---------- */

.drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    width: 264px;
    max-width: 86vw;
    display: flex;
    flex-direction: column;
    background: var(--paper);
    border-left: 1px solid var(--rule);
    transform: translateX(100%);
    transition: transform 0.22s ease;
    overflow-y: auto;
}
.drawer.is-open {
    transform: none;
}
.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--rule);
}
.drawer-body {
    padding: 0 20px 24px;
}
.mobile-nav-group {
    padding: 20px 4px 6px;
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-3);
}
.mobile-nav-group + .mobile-nav-item {
    border-top: 1px solid var(--rule);
}
.mobile-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 13px 4px;
    border: 0;
    border-bottom: 1px solid var(--rule);
    background: none;
    color: var(--ink);
    font-size: 14.5px;
    font-family: inherit;
    text-align: left;
    cursor: pointer;
}
.mobile-nav-item .i {
    width: 16px;
    font-size: 13px;
    color: var(--ink-3);
}
.mobile-nav-item.is-current,
.mobile-nav-item.is-current .i {
    color: var(--accent);
}
.mobile-lang {
    display: flex;
    gap: 10px;
    padding-top: 22px;
}
.mobile-lang a,
.mobile-lang button {
    flex: 1;
    text-align: center;
    padding: 9px;
    border: 1px solid var(--rule-strong);
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.06em;
    color: var(--ink-2);
    background: none;
    cursor: pointer;
}
.mobile-lang .is-active {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--on-ink);
}

/* ---------- 页脚 / 回到顶部 ---------- */

.site-footer {
    border-top: 1px solid var(--rule);
    margin-top: 56px;
}
.site-footer .wrap {
    padding-top: 30px;
    padding-bottom: 34px;
    text-align: center;
}
.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.footer-links a,
.footer-links button {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.07em;
    color: var(--ink-3);
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}
.footer-links a:hover,
.footer-links button:hover {
    color: var(--accent);
}
.footer-copy {
    margin-top: 14px;
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.06em;
    color: var(--ink-3);
    opacity: 0.75;
}

.back-top {
    position: fixed;
    right: 22px;
    bottom: 24px;
    z-index: 50;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 0;
    background: var(--ink);
    color: var(--on-ink);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all 0.22s ease;
}
.back-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: none;
}
.back-top:hover {
    background: var(--accent);
}
.back-top .i {
    font-size: 13px;
}

/* ---------- 响应式 ---------- */

/* 桌面显示完整导航，隐藏汉堡；手机反之 */
.header-burger {
    display: none;
}

@media (max-width: 700px) {
    .wrap {
        padding: 0 16px;
    }
    .header-nav {
        display: none;
    }
    .header-burger {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border: 0;
        background: none;
        color: var(--ink-2);
        cursor: pointer;
        padding: 0;
    }
    .header-burger .i {
        font-size: 16px;
    }
    .page-head {
        padding-top: 26px;
    }
    .page-title {
        font-size: 24px;
    }
    .post-item {
        padding: 20px 0 18px;
    }
    .post-item::before {
        left: -16px;
    }
    .post-title {
        font-size: 17px;
    }
    .post-desc {
        font-size: 13.5px;
    }
    .post-meta {
        gap: 7px;
    }
    /* 手机上隐藏速览：弹窗内容与详情页重复，且小屏点按目标太密 */
    .post-meta .btn-ghost {
        display: none;
    }
    /* 手机端分页降级 */
    .pager .is-page-num {
        display: none;
    }
    .pager-mobile {
        display: flex !important;
    }
    .modal {
        padding: 14px;
    }
    .modal-head,
    .modal-foot {
        padding-left: 18px;
        padding-right: 18px;
    }
    .modal-body {
        padding: 16px 18px;
    }
    .qr-grid {
        gap: 16px;
    }
}

@media (max-width: 640px) {
    .home-tools {
        grid-template-columns: 1fr;
    }
    .tools-cell {
        padding: 12px 14px;
    }
    .tools-cell + .tools-cell {
        border-left: 0;
        border-top: 1px solid var(--rule);
    }
    .digest-head {
        padding: 24px 20px 20px;
    }
    .digest-title {
        font-size: 22px;
    }
    .dg-cal-summary {
        padding: 11px 20px;
    }
    .dg-cal-body {
        padding: 0 20px 18px;
    }
    .digest-items {
        padding: 4px 20px 0;
    }
    .digest-item {
        gap: 12px;
        padding: 18px 0;
    }
    .digest-item-num {
        flex-basis: 20px;
        font-size: 15px;
    }
    .digest-item-title {
        font-size: 16px;
    }
    .digest-foot {
        padding: 0 20px 26px;
    }
    .digest-nav {
        grid-template-columns: 1fr;
    }
    .digest-nav-link + .digest-nav-link {
        text-align: left;
        align-items: flex-start;
        border-top: 1px solid var(--rule);
    }
    .doc-panel {
        padding: 24px 20px 28px;
    }
    .prose {
        font-size: 15px;
    }
}