/* 不二 · 山色与纸页。图像承接生活，文字保留阅读的呼吸。 */
:root, [data-theme="light"] {
  color-scheme: light;
  --global-bg: #f6f7f2;
  --card-bg: #ffffff;
  --font-color: #272d29;
  --second-text: #697069;
  --theme-color: #286450;
  --theme-deep: #194733;
  --theme-op: #edf2eb;
  --card-border: #e3e7df;
  --second-bg: #f1f1e9;
  --warm-bg: #f2efe6;
  --code-bg: #202823;
  --code-color: #dbab74;
  --reading-width: 720px;
  --reading-font-size: 17px;
  --nav-bg: rgba(246, 247, 242, .94);
  --serif: "Iowan Old Style", "Songti SC", "Noto Serif CJK SC", "STSong", Georgia, serif;
  --radius: 16px;
}
[data-theme="dark"] {
  color-scheme: dark;
  --global-bg: #181d1a;
  --card-bg: #202722;
  --font-color: #e5e9df;
  --second-text: #aab4a7;
  --theme-color: #a3c8ab;
  --theme-deep: #c8e6c9;
  --theme-op: #2a382e;
  --card-border: #354137;
  --second-bg: #283129;
  --warm-bg: #302f26;
  --code-bg: #121a15;
  --code-color: #e7bd88;
  --nav-bg: rgba(24, 29, 26, .94);
}
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; scroll-padding-top: 110px; }
body { min-height: 100vh; background: var(--global-bg); color: var(--font-color); font: 16px/1.8 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--theme-color); text-decoration: none; text-underline-offset: 5px; transition: color .18s, background-color .18s, border-color .18s; }
a:hover { color: var(--theme-deep); }
button, input { font: inherit; }
button { cursor: pointer; color: inherit; transition: color .18s, background-color .18s, border-color .18s; }
button, input, a { -webkit-tap-highlight-color: transparent; }
img, svg { max-width: 100%; }
img { height: auto; }
button:focus-visible, input:focus-visible, a:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--theme-color); outline-offset: 5px; }
[hidden] { display: none !important; }
::selection { background: var(--theme-color); color: var(--global-bg); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -100px; left: 20px; padding: 10px 18px; background: var(--card-bg); border: 1px solid var(--theme-color); border-radius: 12px; z-index: 1200; }
.skip-link:focus { top: 12px; }
#web_bg { display: none; }
.main-container { width: min(1280px, 100%); margin: 0 auto; padding: 56px 40px 72px; min-height: calc(100vh - 290px); }
.main-container:focus { outline: none; }
.content-wrapper { max-width: 840px; margin: 0 auto; }
.content-wrapper.with-sidebar { max-width: 100%; display: grid; grid-template-columns: minmax(0, 1fr) 248px; gap: 40px; align-items: start; }
.content-main, .home-writing, .post-content, .intro-copy, .home-aside, .author-info { min-width: 0; }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .12em; color: var(--second-text); }
.text-link { font-size: 14px; font-weight: 600; }
.text-link:hover, .muted-link:hover { text-decoration: underline; }
.muted-link { font-size: 12px; color: var(--second-text); white-space: nowrap; }
/* 顶栏保留真实导航与后台排序，浮动菜单才使用阴影。 */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--nav-bg); backdrop-filter: blur(12px); border-bottom: 1px solid var(--card-border); }
.header-inner { max-width: 1280px; margin: 0 auto; min-height: 76px; padding: 12px 40px; display: flex; gap: 40px; align-items: center; }
.site-logo { display: flex; gap: 9px; align-items: center; color: var(--font-color); font-size: 23px; font-weight: 700; letter-spacing: -.04em; max-width: 260px; }
.site-logo > span:not(.logo-mark):not(.logo-dot) { overflow-wrap: anywhere; line-height: 1.2; }
.logo-mark { flex: none; display: grid; place-items: center; width: 32px; height: 34px; border: 1px solid var(--theme-color); background: var(--theme-color); color: var(--global-bg); border-radius: 9px 9px 4px 9px; font: 22px/1 var(--serif); }
.logo-dot { color: var(--theme-color); margin-left: -6px; }
.header-inner > nav { flex: 1; min-width: 0; }
.header-nav { display: flex; align-items: center; flex-wrap: wrap; gap: 2px 24px; list-style: none; }
.header-nav li { min-width: 0; max-width: min(100%, 10em); }
.header-nav a { display: block; padding: 8px 0; color: var(--second-text); font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; position: relative; }
.header-nav a:hover, .header-nav a.active { color: var(--theme-color); }
.header-nav a.active::after { content: ''; position: absolute; height: 3px; width: 12px; border-radius: 3px; background: var(--theme-color); bottom: 1px; left: calc(50% - 6px); }
.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.action-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 10px; color: var(--second-text); background: transparent; font-size: 12px; padding: 8px; min-width: 36px; min-height: 40px; }
.action-btn:hover { color: var(--theme-color); background: var(--theme-op); }
kbd { border: 1px solid var(--card-border); border-radius: 5px; padding: 0 5px; font: 12px/1.7 monospace; color: var(--second-text); }
.mobile-menu-btn { display: none; border: 0; border-radius: 10px; background: transparent; width: 40px; height: 40px; }
.mobile-menu-btn:hover { background: var(--theme-op); }
.mobile-menu-btn span { display: block; width: 17px; height: 1px; margin: 5px auto; background: var(--font-color); }
/* 首页的风景与文字共处一幅画面，名言开关控制整个图像层。 */
.home-page { padding-top: 24px; }
.home-intro { position: relative; isolation: isolate; min-height: 350px; display: flex; align-items: center; padding: 26px 40px; overflow: hidden; border-radius: var(--radius); background: var(--warm-bg); }
.intro-copy { position: relative; z-index: 2; width: min(480px, 100%); }
.hero-identity { display: flex; align-items: center; gap: 11px; }
.hero-author { min-width: 0; }
.intro-avatar { width: 44px; height: 44px; object-fit: cover; flex: none; background: var(--warm-bg); border: 2px solid #fff9; border-radius: 50%; }
.hero-author .eyebrow { color: var(--font-color); letter-spacing: .06em; display: flex; align-items: center; flex-wrap: wrap; gap: 5px; overflow-wrap: anywhere; }
.hero-social { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12px; line-height: 1.6; }
.hero-social a { color: var(--second-text); }
.hero-social a:hover { color: var(--theme-color); }
.status-dot { width: 6px; height: 6px; flex: none; border-radius: 50%; background: var(--theme-color); margin-right: 3px; }
.home-intro h1 { font: 600 clamp(38px, 4.2vw, 52px)/1.2 var(--serif); letter-spacing: .015em; margin: 16px 0 14px; }
.home-intro h1 em { font-style: normal; color: var(--theme-color); }
.intro-description { font-size: 14px; line-height: 1.65; color: var(--second-text); }
.intro-links { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; margin-top: 16px; }
.intro-links > .text-link { display: inline-flex; align-items: center; gap: 22px; padding: 8px 17px; background: var(--theme-color); color: var(--global-bg); border-radius: 8px; }
.intro-links > .text-link:hover { background: var(--theme-deep); text-decoration: none; }
.intro-note { position: absolute; z-index: auto; inset: 0; }
.tea-illustration { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.intro-note::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, #faf6e7b3, #faf6e72b 42%, transparent 62%); }
.intro-note-caption { position: absolute; z-index: 3; right: 26px; bottom: 22px; padding: 10px 18px; background: #fffdf0e8; color: #254937; border: 1px solid #fff8; border-radius: 10px; backdrop-filter: blur(8px); }
.note-title { font: 600 20px/1.5 var(--serif); letter-spacing: .12em; }
.note-caption { font-size: 12px; line-height: 1.6; max-width: 250px; color: #53614d; overflow-wrap: anywhere; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; }
[data-theme="dark"] .tea-illustration { filter: brightness(.7) saturate(.8); }
[data-theme="dark"] .intro-note::after { background: linear-gradient(90deg, #1d2923 4%, #1d2923eb 27%, #1d292370 48%, transparent 75%); }
[data-theme="dark"] .intro-note-caption { background: #1d2923df; color: #e5e9df; border-color: #ffffff26; }
[data-theme="dark"] .note-caption { color: #bac8b6; }
.home-content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 256px; gap: 32px; margin-top: 36px; align-items: start; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.section-heading h2 { font-size: 26px; font-weight: 650; letter-spacing: -.025em; line-height: 1.4; margin-top: 4px; }
.heading-dot { color: var(--theme-color); padding-left: 3px; }
.writing-topics { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 8px; margin: -8px -2px 16px; scrollbar-width: thin; scrollbar-color: var(--card-border) transparent; }
.writing-topics a { display: inline-flex; align-items: center; gap: 10px; flex: none; max-width: 210px; padding: 6px 12px; border: 1px solid var(--card-border); border-radius: 8px; background: var(--card-bg); color: var(--second-text); font-size: 12px; line-height: 1.6; }
.writing-topics a > span:first-child { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.writing-topics a:hover { color: var(--theme-color); background: var(--theme-op); border-color: var(--theme-color); }
.writing-topics a:focus-visible { outline-offset: -3px; }
.writing-topics .topic-chip-count { font-size: 12px; color: var(--theme-color); font-variant-numeric: tabular-nums; }
.writing-topics .all-topics-link { background: transparent; border-color: transparent; }
.home-aside { display: grid; gap: 26px; padding-top: 6px; }
.home-aside h2 { font-size: 18px; font-weight: 650; }
.home-topics { padding: 0 4px; }
.home-topics h2 { margin: 4px 0 14px; }
.topic-list { list-style: none; margin-bottom: 12px; }
.topic-list a { display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px solid var(--card-border); padding: 10px 0; font-size: 14px; color: var(--font-color); }
.topic-list a > span:first-child { min-width: 0; overflow-wrap: anywhere; }
.topic-list a:hover { color: var(--theme-color); }
.topic-list li:last-child a { border-bottom: 0; }
.topic-count { display: inline-grid; place-items: center; flex-shrink: 0; min-width: 26px; height: 24px; border-radius: 6px; font-size: 12px; color: var(--second-text); background: var(--theme-op); font-variant-numeric: tabular-nums; }
.project-invitation { display: block; position: relative; overflow: hidden; padding: 26px 24px; background: var(--theme-color); color: var(--global-bg); border-radius: var(--radius); }
.project-invitation::after { content: '{ }'; position: absolute; right: 8px; bottom: -35px; font: 120px/1.4 Georgia, serif; opacity: .08; pointer-events: none; }
.project-invitation:hover { background: var(--theme-deep); color: var(--global-bg); }
.project-invitation .eyebrow { color: inherit; opacity: .75; }
.project-invitation h2 { margin: 21px 0 9px; font: 600 25px/1.4 var(--serif); }
.project-invitation p { font-size: 13px; line-height: 1.9; opacity: .8; margin-bottom: 22px; }
.project-invitation .text-link { font-size: 13px; color: inherit; }
.project-symbol { position: absolute; top: 14px; right: 20px; font-size: 23px; }
.home-moments, .home-notice { padding: 0 4px; }
.home-moments { border-top: 1px solid var(--card-border); padding-top: 22px; }
.sidebar-card, .sidebar-subscribe { padding: 22px; background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--radius); }
.compact { align-items: center; margin-bottom: 16px; }
.home-moment { border-left: 2px solid var(--card-border); padding: 0 0 18px 14px; }
.home-moment:last-child { padding-bottom: 0; }
.home-moment time { font-size: 12px; color: var(--second-text); font-variant-numeric: tabular-nums; }
.moment-excerpt { margin-top: 5px; font-size: 14px; line-height: 1.9; color: var(--second-text); display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; overflow: hidden; overflow-wrap: anywhere; }
.moment-excerpt img, .moment-excerpt pre, .moment-excerpt table { display: none; }
.home-notice > p:last-child { font-size: 13px; color: var(--second-text); margin-top: 12px; overflow-wrap: anywhere; }
.all-writing-link { display: flex; justify-content: space-between; padding: 24px 3px; font-size: 14px; }
.subscribe-note { border-top: 1px solid var(--card-border); margin-top: 36px; padding: 30px 0 0; display: flex; align-items: center; gap: 22px; }
.subscribe-note > span { font: 40px/1 var(--serif); color: var(--theme-color); }
.subscribe-note > div { flex: 1; min-width: 0; }
.subscribe-note h2 { font-size: 16px; font-weight: 600; }
.subscribe-note p { font-size: 13px; color: var(--second-text); margin-top: 3px; }
/* 条目由内容决定，有封面时使用更清晰的图文比例。 */
.article-list { display: grid; gap: 16px; }
.article-card { padding: 24px; border: 1px solid var(--card-border); border-radius: var(--radius); background: var(--card-bg); transition: border-color .18s, background-color .18s; }
.article-card:hover { border-color: color-mix(in srgb, var(--theme-color), var(--card-border) 60%); }
.article-card-body { display: flex; align-items: center; gap: 24px; }
.article-card-content { flex: 1; min-width: 0; }
.article-card-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; color: var(--second-text); font-size: 12px; line-height: 1.8; }
.article-card-meta a { color: var(--second-text); }
.article-card-meta time { font-variant-numeric: tabular-nums; }
.article-card-meta > * + *::before { content: '·'; margin-right: 8px; color: var(--second-text); }
.article-card-meta .article-badge { color: var(--theme-color); }
.article-card-title { font-size: 22px; font-weight: 600; line-height: 1.5; letter-spacing: -.025em; margin: 8px 0 10px; overflow-wrap: anywhere; }
.article-card-title a { color: var(--font-color); }
.article-card-title a:hover { color: var(--theme-color); }
.article-card-summary { font-size: 14px; line-height: 1.85; color: var(--second-text); overflow-wrap: anywhere; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-card-tags { display: flex; flex-wrap: wrap; gap: 6px 12px; margin-top: 14px; }
.article-card-tag { font-size: 12px; color: var(--second-text); overflow-wrap: anywhere; }
.article-card-tag:hover { color: var(--theme-color); }
.article-card-footer { min-width: 0; }
.article-card-footer:not(:has(*)) { display: none; }
.article-card-open { display: inline-flex; align-items: center; gap: 8px; min-height: 28px; white-space: nowrap; font-size: 12px; font-weight: 600; }
.article-card-open:hover { text-decoration: underline; }
.article-card-open > span { transition: transform .18s; }
.article-card-open:hover > span { transform: translate(2px, -2px); }
.article-card-cover { width: 200px; flex: none; overflow: hidden; border-radius: 12px; background: var(--second-bg); }
.article-card-cover img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; transition: opacity .18s; }
.article-card-cover:hover img { opacity: .88; }
/* 内容入口共用标题、圆角容器、筛选与空状态。 */
.content-nav { display: flex; gap: 5px; flex-wrap: wrap; padding-bottom: 20px; margin-bottom: 28px; border-bottom: 1px solid var(--card-border); }
.content-nav a { padding: 6px 14px; border-radius: 8px; color: var(--second-text); font-size: 13px; }
.content-nav a[aria-current="page"] { background: var(--theme-op); color: var(--theme-color); font-weight: 600; }
.content-nav a:hover { background: var(--card-bg); color: var(--theme-color); }
.page-heading, .page-header h1 { font: 500 36px/1.45 var(--serif); margin-bottom: 18px; letter-spacing: -.025em; overflow-wrap: anywhere; }
.page-heading > i { display: none; }
.page-heading small { display: inline-block; font: 12px/1.6 -apple-system, sans-serif; color: var(--second-text); margin-left: 12px; }
.page-desc, .page-description { color: var(--second-text); font-size: 15px; margin-bottom: 28px; }
.sidebar-card { margin-bottom: 20px; }
.sidebar-title { font-size: 15px; font-weight: 600; margin: 0 0 12px; }
.sidebar-title i { display: none; }
.explore-links { display: grid; gap: 0; }
.explore-links a { display: flex; align-items: center; justify-content: space-between; font-size: 14px; padding: 9px 0; border-bottom: 1px solid var(--card-border); color: var(--second-text); }
.explore-links a:last-child { border-bottom: 0; }
.explore-links a:hover { color: var(--theme-color); }
.sidebar-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.sidebar-tag, .post-tag { padding: 3px 10px; border: 1px solid var(--card-border); border-radius: 8px; color: var(--second-text); font-size: 12px; overflow-wrap: anywhere; }
.sidebar-tag:hover, .post-tag:hover { background: var(--theme-op); color: var(--theme-color); border-color: var(--theme-color); }
.sidebar-subscribe { font-size: 13px; color: var(--second-text); background: var(--warm-bg); }
.sidebar-subscribe > span { font-size: 28px; color: var(--theme-color); }
.sidebar-subscribe .text-link { display: inline-block; font-size: 13px; margin-top: 10px; }
.category-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 30px; }
.category-card { display: flex; flex-direction: column; min-height: 184px; padding: 26px; border: 1px solid var(--card-border); border-radius: var(--radius); background: var(--card-bg); color: var(--font-color); overflow-wrap: anywhere; }
.category-card:hover { border-color: var(--theme-color); background: var(--theme-op); }
.category-card-icon { display: none; }
.category-card-kicker { color: var(--theme-color); font-size: 12px; letter-spacing: .1em; margin-bottom: 8px; }
.category-card-name { font: 600 21px/1.6 var(--serif); }
.category-card-desc { margin: 8px 0; font-size: 14px; color: var(--second-text); }
.category-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 20px; }
.category-card-count { font-size: 12px; color: var(--second-text); }
.category-card-arrow { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--theme-op); color: var(--theme-color); font-size: 16px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0; }
.tag-cloud-item { padding: 9px 18px; border: 1px solid var(--card-border); background: var(--card-bg); font-size: 14px; border-radius: 12px; overflow-wrap: anywhere; }
.tag-cloud-item:hover { background: var(--theme-op); border-color: var(--theme-color); }
.archive-month-nav { display: flex; flex-wrap: wrap; gap: 10px; font-size: 12px; margin: 20px 0 32px; }
.archive-month-nav a { padding: 4px 12px; border-radius: 8px; background: var(--theme-op); }
.archive-group { position: relative; padding: 0 0 0 24px; border-left: 1px solid var(--card-border); }
.archive-group + .archive-group { margin-top: 20px; }
.archive-year-month { font: 600 24px/1.6 var(--serif); padding-bottom: 10px; scroll-margin-top: 110px; }
.archive-year-month::before { content: ''; position: absolute; left: -5px; margin-top: 14px; width: 9px; height: 9px; border-radius: 50%; background: var(--theme-color); border: 2px solid var(--global-bg); }
.archive-articles { list-style: none; }
.archive-articles li { display: flex; gap: 20px; align-items: baseline; padding: 15px 0; border-bottom: 1px solid var(--card-border); }
.archive-articles li:last-child { border-bottom: 0; padding-bottom: 0; }
.archive-date { flex: none; font-size: 12px; color: var(--second-text); font-variant-numeric: tabular-nums; }
.archive-articles a { color: var(--font-color); font-size: 15px; overflow-wrap: anywhere; }
.archive-articles a:hover { color: var(--theme-color); }
.moment-item { margin-bottom: 20px; padding: 24px 26px; border: 1px solid var(--card-border); border-radius: var(--radius); background: var(--card-bg); position: relative; }
.moment-dot { position: absolute; top: 31px; left: 0; width: 3px; height: 18px; border-radius: 0 3px 3px 0; background: var(--theme-color); }
.moment-time { font-size: 12px; color: var(--second-text); margin-bottom: 12px; }
.moment-body { min-width: 0; font-size: 15px; overflow-wrap: anywhere; }
.moment-body p + p { margin-top: 12px; }
.moment-body pre, .moment-body table { max-width: 100%; overflow: auto; }
.moment-body table { display: block; }
.moment-images { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 16px; }
.moment-images img { display: block; width: 100%; border-radius: 12px; }
.author-header { display: flex; align-items: center; gap: 22px; margin-bottom: 28px; padding: 26px; border-radius: var(--radius); border: 1px solid var(--card-border); background: var(--warm-bg); }
.author-avatar { width: 72px; height: 72px; border-radius: 50%; overflow: hidden; flex: none; display: grid; place-items: center; background: var(--theme-op); }
.author-avatar img { width: 100%; height: 100%; object-fit: cover; }
.author-name { font: 500 30px/1.5 var(--serif); overflow-wrap: anywhere; }
.author-name > i { display: none; }
.author-bio { font-size: 14px; color: var(--second-text); overflow-wrap: anywhere; }
.author-homepage { font-size: 12px; }
.projects-page { max-width: var(--reading-width); margin: 0 auto; }
.empty-state { padding: 56px 24px; text-align: center; color: var(--second-text); border: 1px dashed var(--card-border); border-radius: var(--radius); background: var(--card-bg); }
.empty-state > i { display: none; }
.empty-state h2, .empty-state h3 { font: 500 24px/1.6 var(--serif); color: var(--font-color); margin-bottom: 10px; }
.empty-state p { font-size: 14px; }
.empty-state a { display: inline-block; margin-top: 18px; }
.empty-symbol { display: block; font-size: 32px; color: var(--theme-color); margin-bottom: 16px; }
.error-page { max-width: 700px; margin: 30px auto; padding: 36px 24px; border: 1px solid var(--card-border); border-radius: var(--radius); background: var(--card-bg); text-align: center; }
.error-img { max-width: 260px; margin: 0 auto 12px; }
.error-code { font: 500 86px/1.4 var(--serif); color: var(--theme-color); }
.error-message { font-size: 26px; }
.error-desc { font-size: 15px; color: var(--second-text); margin: 16px 0 28px; }
.back-link, .more-link a { display: inline-block; padding: 10px 20px; border: 1px solid var(--card-border); background: var(--theme-op); border-radius: 10px; font-size: 14px; }
.pagination { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 8px; margin: 36px 0; }
.pagination-btn { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; min-height: 40px; padding: 5px 12px; border: 1px solid var(--card-border); background: var(--card-bg); border-radius: 10px; font-size: 13px; }
.pagination-btn:hover { background: var(--theme-op); }
.pagination-btn.active { background: var(--theme-color); color: var(--global-bg); border-color: var(--theme-color); }
.pagination-btn.disabled { opacity: .4; pointer-events: none; }
.pagination-info { color: var(--second-text); font-size: 12px; padding: 0 10px; }
/* 长文保持配置字号与阅读宽度；代码、表格只在自身范围滚动。 */
.reading-container { max-width: 1320px; padding-top: 44px; }
.post-detail { max-width: 1100px; margin: 0 auto; }
.post-header { max-width: var(--reading-width); margin-bottom: 32px; }
.post-breadcrumb { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--second-text); margin-bottom: 26px; }
.post-breadcrumb a { color: var(--second-text); }
.post-title { text-wrap: balance; font: 600 clamp(30px, 3.5vw, 44px)/1.45 var(--serif); letter-spacing: -.025em; overflow-wrap: anywhere; }
.post-summary { font-size: 16px; line-height: 1.9; color: var(--second-text); margin-top: 18px; overflow-wrap: anywhere; }
.post-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 12px; color: var(--second-text); margin-top: 22px; }
.post-meta a { color: var(--second-text); }
.post-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.post-cover { max-width: var(--reading-width); margin-bottom: 36px; }
/* 未知尺寸先按 16:9 占位；加载后使用固有比例并保留原有高度上限。 */
.post-cover img { display: block; width: 100%; aspect-ratio: auto 16 / 9; max-height: 460px; object-fit: cover; border-radius: var(--radius); background: var(--second-bg); }
.post-reading-layout { display: grid; grid-template-columns: minmax(0, var(--reading-width)) 220px; align-items: start; gap: 56px; }
.post-content { font-size: var(--reading-font-size); line-height: 1.95; overflow-wrap: anywhere; }
.post-content > :first-child { margin-top: 0; }
.post-content h1, .post-content h2, .post-content h3, .post-content h4, .post-content h5, .post-content h6 { line-height: 1.6; color: var(--font-color); font-weight: 600; margin: 2em 0 .8em; scroll-margin-top: 110px; }
.post-content h1 { font-size: 1.9em; }
.post-content h2 { font-family: var(--serif); font-size: 1.6em; font-weight: 600; letter-spacing: .015em; padding-bottom: .4em; border-bottom: 1px solid var(--card-border); }
.post-content h3 { font-size: 1.25em; }
.post-content p, .post-content ul, .post-content ol, .post-content blockquote, .post-content pre, .post-content table { margin-bottom: 1.45em; }
.post-content ul, .post-content ol { padding-left: 1.45em; }
.post-content li { margin-bottom: .35em; }
.post-content li::marker { color: var(--theme-color); }
.post-content li > p { margin-bottom: .4em; }
.post-content a { text-decoration: underline; text-decoration-thickness: 1px; }
.post-content img { display: block; margin: 1.5em auto; border-radius: 12px; }
.post-content blockquote { padding: 18px 22px; border-left: 3px solid var(--theme-color); border-radius: 0 12px 12px 0; background: var(--theme-op); color: var(--second-text); }
.post-content blockquote p:last-child { margin-bottom: 0; }
.post-content code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: .85em; }
.post-content :not(pre) > code { background: var(--second-bg); color: var(--theme-color); border-radius: 5px; padding: .15em .35em; }
.post-content pre, .post-content pre[class*="language-"] { position: relative; max-width: 100%; overflow: auto; background: var(--code-bg); border: 1px solid var(--card-border); border-radius: 12px; padding: 48px 22px 22px; color: #e2e9de; font-size: 14px; line-height: 1.8; tab-size: 4; text-shadow: none; scrollbar-width: thin; }
.post-content pre code, .post-content code[class*="language-"] { background: transparent; color: inherit; white-space: pre; text-shadow: none; font-size: 13px; }
.code-copy-btn { position: absolute; top: 8px; right: 10px; border: 1px solid #516052; background: #26342b; color: #e2e9de; border-radius: 7px; padding: 3px 10px; font-size: 12px; line-height: 1.8; }
.code-copy-btn:hover { background: #3b5041; }
.code-language { position: absolute; top: 11px; left: 22px; font: 12px/1.8 monospace; color: #a6b8a5; letter-spacing: .08em; text-transform: uppercase; }
/* 增强工具栏与代码分开；无脚本和后台预览继续使用原生 pre。 */
.code-frame { min-width: 0; margin-bottom: 1.45em; border: 1px solid var(--card-border); border-radius: 12px; overflow: hidden; background: var(--code-bg); }
.code-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 16px; border-bottom: 1px solid #ffffff1a; background: #19251e; }
.code-toolbar .code-language { position: static; min-width: 0; overflow-wrap: anywhere; }
.code-actions { display: flex; min-width: 0; gap: 7px; }
.code-wrap-btn { flex: none; }
.code-toolbar .code-copy-btn { min-width: 0; }
.code-toolbar .code-copy-btn, .code-wrap-btn { position: static; min-height: 32px; border: 1px solid #516052; background: transparent; color: #e2e9de; border-radius: 6px; padding: 3px 10px; font-size: 12px; line-height: 1.8; }
.code-toolbar button:hover, .code-wrap-btn[aria-pressed="true"] { background: #3b5041; }
.code-toolbar button:focus-visible { outline-color: #c8e6c9; outline-offset: 2px; }
.post-content .code-frame pre { margin: 0; border: 0; border-radius: 0; padding: 18px 20px; }
.post-content .code-frame.is-wrapped pre, .post-content .code-frame.is-wrapped pre code { white-space: pre-wrap; overflow-wrap: anywhere; word-break: normal; }
.post-content table { display: block; width: 100%; overflow-x: auto; border-collapse: collapse; font-size: .88em; scrollbar-width: thin; }
.post-content th, .post-content td { border: 1px solid var(--card-border); padding: 11px 16px; min-width: 100px; }
.post-content th { background: var(--second-bg); text-align: left; }
.post-content tr:nth-child(even) { background: var(--card-bg); }
.post-content hr { border: 0; border-top: 1px solid var(--card-border); margin: 2.5em 0; }
.post-content input[type="checkbox"] { margin-right: 7px; accent-color: var(--theme-color); }
.sidebar-toc { position: sticky; top: 110px; padding: 18px; border: 1px solid var(--card-border); border-radius: 12px; background: var(--card-bg); font-size: 12px; }
.toc-title { color: var(--second-text); font-size: 12px; font-weight: 600; letter-spacing: .08em; cursor: pointer; margin-bottom: 12px; }
.toc-progress-label { float: right; margin-left: 12px; font: 12px/1.8 -apple-system, sans-serif; letter-spacing: 0; font-variant-numeric: tabular-nums; color: var(--theme-color); }
.toc-footer { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--card-border); font-size: 12px; }
.toc-footer a { color: var(--second-text); }
.toc-footer a:hover { color: var(--theme-color); }
#tocContent { max-height: calc(100vh - 200px); overflow: auto; scrollbar-width: thin; }
.toc-list { list-style: none; padding: 0; }
.toc-list li { padding-left: calc(var(--toc-depth, 0) * 14px); }
.toc-list a { display: block; padding: 6px 8px; border-radius: 6px; color: var(--second-text); line-height: 1.7; overflow-wrap: anywhere; }
.toc-list a:hover, .toc-list a.active { color: var(--theme-color); background: var(--theme-op); }
.toc-list a.active { font-weight: 600; }
.reading-progress { height: 2px; position: fixed; top: 0; left: 0; width: 100%; transform: scaleX(0); transform-origin: left; background: var(--theme-color); z-index: 110; }
.post-endnote { max-width: var(--reading-width); display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 26px 0; margin-top: 44px; border-top: 1px solid var(--card-border); font-size: 12px; color: var(--second-text); }
.post-topic-link { display: flex; justify-content: space-between; align-items: center; gap: 20px; max-width: var(--reading-width); margin-bottom: 18px; padding: 18px 22px; background: var(--theme-op); border: 1px solid var(--card-border); border-radius: 12px; }
.post-topic-link strong { display: block; margin-top: 4px; color: var(--font-color); font-size: 18px; overflow-wrap: anywhere; }
.post-topic-link > span:first-child { min-width: 0; }
.post-topic-link > span:last-child { font-size: 22px; flex: none; }
.post-topic-link:hover { border-color: var(--theme-color); }
.post-nav { max-width: var(--reading-width); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-bottom: 36px; }
.post-nav-item { min-width: 0; padding: 20px; border: 1px solid var(--card-border); border-radius: 12px; background: var(--card-bg); }
.post-nav-item a { display: grid; gap: 8px; overflow-wrap: anywhere; }
.post-nav-label { color: var(--second-text); font-size: 12px; }
.post-nav-title { font-size: 14px; color: var(--font-color); }
.post-nav-next { text-align: right; }
.post-comment { max-width: var(--reading-width); font-size: 14px; padding-top: 18px; border-top: 1px solid var(--card-border); }
.post-comment summary { cursor: pointer; color: var(--second-text); margin-bottom: 20px; }
.comment-placeholder, .comment-status { color: var(--second-text); font-size: 12px; }
.comment-section { margin-top: 24px; }
/* 搜索浮层与独立搜索页共用表单外观。 */
.search-modal { position: fixed; inset: 0; z-index: 200; background: rgba(15, 25, 18, .36); padding: min(18vh, 150px) 24px 24px; backdrop-filter: blur(4px); overflow-y: auto; }
.search-modal-inner { width: min(640px, 100%); margin: 0 auto; background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 30px; box-shadow: 0 20px 80px #0002; }
.search-modal-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; gap: 16px; }
.search-modal-heading h2 { font: 500 27px/1.5 var(--serif); }
.search-form-main { display: flex; gap: 10px; }
.search-modal-input, .search-input-main { width: 100%; min-width: 0; background: var(--global-bg); color: var(--font-color); border: 1px solid var(--card-border); border-radius: 10px; padding: 12px 14px; font-size: 15px; }
.search-modal-input::placeholder, .search-input-main::placeholder { color: var(--second-text); }
.search-btn-main { border: 1px solid var(--theme-color); background: var(--theme-color); color: var(--global-bg); border-radius: 10px; white-space: nowrap; padding: 10px 22px; font-size: 14px; }
.search-btn-main:hover { background: var(--theme-deep); }
.search-help { color: var(--second-text); font-size: 12px; margin-top: 14px; }
.search-shortcuts { display: flex; flex-wrap: wrap; gap: 14px 20px; margin-top: 28px; border-top: 1px solid var(--card-border); padding-top: 18px; font-size: 13px; }
.search-box { margin: 28px 0; }
.search-actions { margin-top: 12px; font-size: 13px; }
.search-result-info { font-size: 14px; color: var(--second-text); margin: 28px 0 18px; overflow-wrap: anywhere; }
/* 页脚延续安静的纸面，保持订阅与管理入口可达。 */
.site-footer { max-width: 1120px; margin: 0 auto; padding: 0 0 24px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 30px 0; border-top: 1px solid var(--card-border); }
.footer-brand { font: 600 25px/1.4 var(--serif); color: var(--font-color); }
.footer-inner p { font-size: 12px; color: var(--second-text); margin-top: 6px; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { font-size: 12px; color: var(--second-text); }
.footer-links a:hover { color: var(--theme-color); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--second-text); font-size: 12px; padding-top: 16px; border-top: 1px solid var(--card-border); }
@media (max-width: 1100px) {
  .header-inner { gap: 24px; }
  .header-nav { gap: 2px 16px; }
  .home-content-grid, .content-wrapper.with-sidebar { gap: 28px; grid-template-columns: minmax(0, 1fr) 236px; }

  .article-card { padding: 22px; }
  .article-card-body { gap: 20px; }
  .site-footer { margin-inline: 40px; }
  .post-reading-layout { gap: 36px; grid-template-columns: minmax(0, 1fr) 190px; }
}
@media (max-width: 900px) {
  .post-reading-layout { display: flex; flex-direction: column; gap: 26px; }
  .post-reading-layout .post-content { width: 100%; order: 2; }
  .sidebar-toc { position: static; order: 1; width: 100%; padding: 15px 18px; }
  .toc-title { margin: 0; }
  details[open].sidebar-toc .toc-title { margin-bottom: 14px; }
  #tocContent { max-height: 300px; }
  .reading-container .post-detail { max-width: var(--reading-width); }
  .search-trigger kbd { display: none; }
  .home-content-grid, .content-wrapper.with-sidebar { grid-template-columns: minmax(0, 1fr); }
  .home-aside, .reading-explore { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .reading-explore > * { margin: 0; }
}
@media (max-width: 768px) {
  html { scroll-padding-top: 90px; }
  .main-container { padding: 32px 24px 52px; }
  .header-inner { min-height: 68px; padding: 10px 24px; gap: 16px; }
  .site-logo { font-size: 19px; max-width: 180px; }
  .logo-mark { width: 29px; height: 31px; font-size: 20px; }
  .header-inner > nav { margin-left: auto; flex: 0; }
  .header-actions { gap: 8px; }
  .mobile-menu-btn { display: block; }
  .header-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--card-bg); border-bottom: 1px solid var(--card-border); padding: 14px 24px 22px; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; box-shadow: 0 14px 24px #0000000a; }
  .header-nav.active { display: grid; }
  .header-nav li { max-width: 100%; }
  .header-nav a { padding: 10px 8px; font-size: 14px; text-align: center; border-radius: 10px; white-space: normal; overflow-wrap: anywhere; }
  .header-nav a:hover, .header-nav a.active { background: var(--theme-op); }
  .header-nav a.active::after { bottom: 4px; }

  .home-content-grid { margin-top: 28px; gap: 30px; }

  .post-title { font-size: 32px; }
  .post-breadcrumb { margin-bottom: 22px; }
  .post-summary { font-size: 15px; }
  .post-content h1, .post-content h2, .post-content h3, .post-content h4, .post-content h5, .post-content h6 { scroll-margin-top: 90px; }
  .site-footer { margin-inline: 24px; }
  .footer-links { gap: 16px; }
  .page-heading, .page-header h1 { font-size: 32px; }
}
@media (max-width: 520px) {
  .header-inner { padding-inline: 20px; gap: 8px; }
  .main-container { padding-inline: 20px; }
  .header-actions { gap: 4px; }
  .site-logo { max-width: 130px; }

  .desktop-break { display: none; }
  .section-heading { margin-bottom: 16px; }
  .section-heading h2 { font-size: 26px; }
  .article-card { padding: 18px 16px; }
  .article-card-body { display: grid; grid-template-columns: minmax(0, 1fr) 104px; gap: 10px 14px; align-items: start; }
  .article-card-content { display: contents; }
  .article-card-meta, .article-card-title, .article-card-tags { grid-column: 1 / -1; }
  .article-card-meta { grid-row: 1; }
  .article-card-title { grid-row: 2; font-size: 19px; margin: 0; }
  .article-card-summary { grid-column: 1; grid-row: 3; font-size: 14px; }
  .article-card-cover { grid-column: 2; grid-row: 3; width: 104px; border-radius: 10px; }
  .article-card-body:not(:has(.article-card-cover:not([hidden]))) .article-card-summary { grid-column: 1 / -1; }
  .article-card-meta { gap: 4px 7px; }
  .article-card-meta > * + *::before { margin-right: 7px; }
  .article-card-tags { grid-row: 4; gap: 4px 10px; margin-top: 0; }
  .article-card-footer { grid-column: 1 / -1; grid-row: 4; }
  .home-aside, .reading-explore { grid-template-columns: minmax(0, 1fr); }
  .home-topics .topic-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 20px; }
  .home-topics .topic-list a { border-bottom: 1px solid var(--card-border); }

  .post-title { font-size: 29px; }
  .post-content { line-height: 1.95; }
  .post-content pre { padding-inline: 16px; }
  .post-meta { gap: 6px 12px; }
  .post-nav { gap: 12px; }
  .post-nav-item { padding: 16px; }
  .post-endnote { flex-wrap: wrap; }
  .category-grid { grid-template-columns: minmax(0, 1fr); }
  .category-card, .moment-item { padding: 22px; }
  .archive-group { padding-left: 18px; }
  .archive-articles li { gap: 14px; }
  .author-header { padding: 20px; gap: 16px; }
  .author-avatar { width: 56px; height: 56px; }
  .author-name { font-size: 26px; }
  .search-modal { padding: 86px 16px 20px; }
  .search-modal-inner { padding: 22px 18px; }
  .search-modal-heading h2 { font-size: 24px; }
  .search-btn-main { padding-inline: 16px; }
  .search-modal-input, .search-input-main { font-size: 16px; }
  .footer-inner { align-items: flex-start; }
  .footer-links { max-width: 150px; gap: 10px 20px; }
  .footer-bottom { display: block; line-height: 2; }
  .site-footer { margin-inline: 20px; }
}
/* 首页用首篇横向大图与双列内容形成节奏，其余列表保持紧凑缩略图。 */
.home-article-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.home-article-list > .article-card { min-width: 0; padding: 0; overflow: hidden; border-color: var(--card-border); }
.home-article-list .article-card-body { height: 100%; display: flex; flex-direction: column-reverse; align-items: stretch; gap: 0; }
.home-article-list .article-card-content { display: flex; flex-direction: column; padding: 22px; }
.home-article-list .article-card-meta { gap: 7px 10px; }
.home-article-list .article-card-meta > * + *::before { display: none; }
.home-article-list .article-category { order: -1; max-width: 100%; padding: 2px 8px; border-radius: 5px; color: var(--theme-color); background: var(--theme-op); overflow-wrap: anywhere; }
.home-article-list .article-card-cover { display: block; width: 100%; border-radius: 0; }
.home-article-list .article-card-cover img { width: 100%; aspect-ratio: 16 / 9; height: auto; }
.home-article-list .article-card-title { font-size: 21px; margin: 9px 0 10px; line-height: 1.45; }
.home-article-list .article-card-summary { font-size: 14px; margin-bottom: 18px; }
.home-article-list .article-card-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px 16px; padding-top: 14px; margin-top: auto; border-top: 1px solid var(--card-border); }
.home-article-list .article-card-tags { flex: 1; min-width: 0; margin: 0; padding: 0; border: 0; gap: 6px 12px; }
.home-article-list .article-card-tag { font-size: 12px; }
.home-article-list .article-card-open { margin-left: auto; }
.home-article-list .article-badge { font-size: 12px; }
.home-article-list > .article-card:first-child { grid-column: 1 / -1; }
.home-article-list > .article-card:first-child .article-card-body { flex-direction: row-reverse; }
.home-article-list > .article-card:first-child .article-card-content { padding: 28px; justify-content: center; }
.home-article-list > .article-card:first-child .article-card-footer { margin-top: 18px; }
.home-article-list > .article-card:first-child .article-card-cover { width: 48%; }
.home-article-list > .article-card:first-child .article-card-cover img { height: 100%; min-height: 290px; aspect-ratio: 4 / 3; }
.home-article-list > .article-card:first-child .article-card-title { font: 600 28px/1.45 var(--serif); }
.home-article-list > .article-card:first-child .article-card-summary { -webkit-line-clamp: 3; margin-bottom: 0; }
.home-article-list .article-card:not(:has(.article-card-cover:not([hidden]))) { background: linear-gradient(135deg, var(--card-bg) 30%, var(--theme-op)); }
.home-article-list .article-card:not(:has(.article-card-cover:not([hidden]))) .article-card-content { min-height: 280px; justify-content: center; }
.home-article-list .article-card:not(:has(.article-card-cover:not([hidden]))) .article-card-title { font: 600 27px/1.5 var(--serif); }
@media (max-width: 1100px) {
  .home-intro { padding: 28px 32px; }
  .home-content-grid { gap: 26px; }
  .home-article-list { gap: 20px; }
  .home-article-list .article-card-content, .home-article-list > .article-card:first-child .article-card-content { padding: 22px; }
  .home-article-list > .article-card:first-child .article-card-title { font-size: 25px; }
}
@media (max-width: 768px) {
  .home-page { padding-top: 20px; }
  .home-intro { min-height: 330px; padding: 26px; }
  .home-intro h1 { font-size: 44px; }
  .intro-copy { max-width: 340px; }
  .intro-note::after { background: linear-gradient(90deg, #faf6e7ee 10%, #faf6e7a3 46%, transparent 80%); }
  .intro-note-caption { right: 16px; bottom: 16px; padding: 8px 12px; }
  .note-title { font-size: 18px; }
  .note-caption { display: none; }
  .home-content-grid { margin-top: 28px; }
  .home-aside { border-top: 1px solid var(--card-border); padding-top: 28px; }
}
@media (max-width: 600px) {
  .home-article-list { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .home-article-list > .article-card:first-child .article-card-body { flex-direction: column-reverse; }
  .home-article-list > .article-card:first-child .article-card-cover { width: 100%; }
  .home-article-list > .article-card:first-child .article-card-cover img { min-height: 0; height: auto; aspect-ratio: 16 / 9; }
  .home-article-list .article-card-title, .home-article-list > .article-card:first-child .article-card-title { font: 600 22px/1.5 -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif; }
  .content-nav { gap: 3px; padding-bottom: 16px; margin-bottom: 24px; }
  .content-nav a { padding: 6px 11px; }
  .home-article-list .article-card:not(:has(.article-card-cover:not([hidden]))) .article-card-content { min-height: 220px; }
  .home-article-list .article-card-content, .home-article-list > .article-card:first-child .article-card-content { padding: 20px; }
}
@media (max-width: 520px) {
  .home-page { padding-top: 16px; }
  .home-intro { min-height: 310px; padding: 24px 20px; align-items: flex-start; }
  .intro-copy { width: 100%; }
  .hero-identity { gap: 8px; }
  .intro-avatar { width: 36px; height: 36px; }
  .hero-author .eyebrow { font-size: 12px; }
  .home-intro h1 { font-size: clamp(34px, 10vw, 42px); margin: 18px 0 12px; }
  .intro-description { font-size: 14px; max-width: 225px; }
  .intro-links { gap: 17px; margin-top: 18px; }
  .intro-links > .text-link { padding: 7px 13px; gap: 12px; }
  .intro-links > .muted-link { display: none; }
  .tea-illustration { object-position: 65% center; }
  .intro-note::after { background: linear-gradient(90deg, #faf6e7f2 7%, #faf6e7cb 47%, #faf6e738 100%); }
  .intro-note-caption { bottom: 22px; right: 13px; background: transparent; border: 0; padding: 0; backdrop-filter: none; }
  .note-title { font-size: 15px; letter-spacing: .03em; }
  [data-theme="dark"] .intro-note-caption { background: transparent; }
  .section-heading h2 { font-size: 25px; }
  .home-content-grid { margin-top: 26px; }
  .home-aside { gap: 24px; }
  .subscribe-note { flex-wrap: wrap; gap: 14px; padding-top: 24px; }
}
/* 浏览路径像书页目录；少量内容也有清楚的起承转合。 */
@media (min-width: 769px) {
  .home-intro { min-height: 320px; padding: 20px 40px; }
  .home-intro h1 { font-size: 48px; line-height: 1.15; margin-block: 12px; }
  .home-content-grid { margin-top: 28px; }
}
.home-paths { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--card-border); margin-top: 24px; }
.home-paths a { display: flex; align-items: center; gap: 16px; padding: 14px 22px; color: var(--font-color); min-width: 0; }
.home-paths a:first-child { padding-left: 4px; }
.home-paths a + a { border-left: 1px solid var(--card-border); }
.home-paths a:hover { background: var(--theme-op); }
.path-index { font: italic 18px/1 var(--serif); color: var(--theme-color); opacity: .7; }
.home-paths strong { display: block; font-size: 14px; font-weight: 600; }
.home-paths small { display: block; font-size: 12px; color: var(--second-text); margin-top: 3px; }
.path-arrow { margin-left: auto; color: var(--theme-color); transition: transform .18s; }
.home-paths a:hover .path-arrow { transform: translate(2px,-2px); }
.home-article-list .article-card:not(:has(.article-card-cover:not([hidden]))) .article-card-body { min-height: 220px; }
.home-article-list .article-card:not(:has(.article-card-cover:not([hidden]))) { background: linear-gradient(125deg, var(--card-bg) 45%, var(--theme-op)); }
.home-article-list .article-card:not(:has(.article-card-cover:not([hidden]))) .article-card-title { max-width: 22em; }
.tea-open { display: inline-flex; gap: 18px; align-items: center; color: inherit; background: transparent; border: 0; border-top: 1px solid currentColor; margin-top: 8px; padding: 6px 0 0; min-height: 36px; font-size: 12px; }
.tea-open:hover { gap: 24px; }
/* 搜索是一张可用键盘浏览的小目录。 */
.search-modal-kicker { color: var(--theme-color); font-size: 12px; letter-spacing: .06em; margin-bottom: 5px; }
.search-modal-inner { padding-bottom: 16px; overflow: hidden; }
.search-modal-heading .search-close { flex: none; }
.search-command-area { margin-top: 20px; }
.search-command-status { color: var(--second-text); font-size: 12px; margin: 0 4px 10px; }
.search-command-list { display: grid; gap: 4px; max-height: min(380px, 44dvh); overflow-y: auto; overscroll-behavior: contain; padding: 3px; margin: 0 -3px; }
.search-command-item { display: flex; align-items: center; gap: 14px; padding: 12px; min-height: 62px; border: 1px solid transparent; border-radius: 10px; color: var(--font-color); }
.search-command-item:hover, .search-command-item.is-selected { background: var(--theme-op); border-color: var(--card-border); color: var(--theme-color); }
.search-command-icon { display: grid; place-items: center; width: 32px; height: 32px; flex: none; font: 18px/1 var(--serif); color: var(--theme-color); border: 1px solid var(--card-border); border-radius: 8px; background: var(--card-bg); }
.search-command-copy { min-width: 0; flex: 1; }
.search-command-title { display: block; font-size: 14px; font-weight: 600; overflow-wrap: anywhere; }
.search-command-description { display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; margin-top: 2px; font-size: 12px; color: var(--second-text); overflow-wrap: anywhere; }
.search-command-arrow { color: var(--second-text); flex: none; }
.search-command-footer { display: flex; gap: 20px; border-top: 1px solid var(--card-border); margin-top: 18px; padding-top: 12px; color: var(--second-text); font-size: 12px; }
.search-command-footer kbd { margin-right: 3px; }
/* 阅读桌面：工具在文前，专注时仍可随时退出。 */
.reading-tools { position: sticky; top: 88px; z-index: 90; display: flex; align-items: center; flex-wrap: wrap; gap: 6px; width: fit-content; max-width: 100%; margin: 0 0 32px; padding: 6px; border: 1px solid var(--card-border); border-radius: 12px; background: var(--nav-bg); backdrop-filter: blur(12px); }
.reading-container .post-content :is(h1,h2,h3,h4,h5,h6) { scroll-margin-top: 160px; }
.reading-tools-label { padding: 0 10px; font-size: 12px; color: var(--second-text); }
.reading-tool { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 38px; padding: 6px 12px; border: 0; border-radius: 8px; font-size: 12px; background: transparent; color: var(--second-text); }
.reading-tool:hover, .reading-tool[aria-pressed="true"] { background: var(--theme-op); color: var(--theme-color); }
.reading-tool:disabled { opacity: .35; cursor: default; }
.reading-size-control { display: flex; align-items: center; border-inline: 1px solid var(--card-border); padding-inline: 4px; }
.reading-size-control .reading-tool { min-width: 36px; padding-inline: 8px; font-variant-numeric: tabular-nums; }
body.reading-focus .site-header, body.reading-focus .site-footer, body.reading-focus .sidebar-toc, body.reading-focus .post-comment, body.reading-focus .post-nav, body.reading-focus .post-topic-link, body.reading-focus .post-cover { display: none; }
body.reading-focus .reading-container { padding-top: 36px; }
body.reading-focus .post-detail { max-width: var(--reading-width); margin-inline: auto; }
body.reading-focus .post-reading-layout { display: block; }
body.reading-focus .reading-tools { top: 12px; }
body.reading-focus .post-content :is(h1,h2,h3,h4,h5,h6) { scroll-margin-top: 90px; }
.post-image-unavailable { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-block: 20px; padding: 14px 18px; border: 1px dashed var(--card-border); border-radius: 10px; background: var(--second-bg); color: var(--second-text); font-size: 13px; }
.post-image-unavailable small { font-size: 12px; overflow-wrap: anywhere; }
.post-content .image-zoomable { cursor: zoom-in; transition: opacity .18s; }
.post-content .image-zoomable:hover { opacity: .88; }
.reading-toast { position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%); z-index: 300; width: max-content; max-width: calc(100% - 40px); border: 1px solid var(--card-border); border-radius: 10px; padding: 12px 20px; background: var(--card-bg); box-shadow: 0 8px 32px #0002; color: var(--font-color); font-size: 13px; }
.image-lightbox { margin: auto; width: min(1200px, calc(100% - 32px)); max-height: calc(100dvh - 32px); background: var(--card-bg); color: var(--font-color); border: 1px solid var(--card-border); border-radius: 16px; padding: 56px 20px 20px; }
.image-lightbox::backdrop, .tea-dialog::backdrop { background: #101a14bf; backdrop-filter: blur(10px); }
.image-lightbox-close { position: absolute; top: 10px; right: 14px; border: 0; background: var(--theme-op); color: var(--theme-color); border-radius: 8px; padding: 8px 16px; min-height: 36px; font-size: 13px; }
.image-lightbox figure { margin: 0; }
.image-lightbox img { display: block; max-height: calc(100dvh - 150px); max-width: 100%; width: auto; object-fit: contain; margin: auto; }
.image-lightbox figcaption { font-size: 13px; text-align: center; color: var(--second-text); margin-top: 12px; overflow-wrap: anywhere; }
/* 访客主动开启的一分钟茶歇。图形由CSS绘制，不加载额外媒体。 */
.tea-dialog { margin: auto; width: min(560px, calc(100% - 32px)); max-height: calc(100dvh - 32px); overflow: auto; padding: 68px 28px 32px; text-align: center; border: 1px solid var(--card-border); border-radius: 20px; background: radial-gradient(ellipse at 50% 30%, var(--theme-op), transparent 65%), var(--global-bg); color: var(--font-color); }
.tea-close { position: absolute; top: 12px; right: 16px; }
.tea-scene { position: relative; margin: 30px auto 26px; width: 220px; height: 220px; display: grid; place-items: center; }
.tea-orbit { position: absolute; inset: 0; border-radius: 50%; background: conic-gradient(var(--theme-color) var(--tea-progress, 0deg), var(--card-border) 0); mask: radial-gradient(transparent 68%, #000 69%); opacity: .6; }
.tea-cup { position: absolute; width: 91px; height: 64px; top: 100px; left: 61px; border-radius: 5px 5px 38px 38px; border: 2px solid var(--theme-color); background: linear-gradient(120deg, var(--card-bg), var(--theme-op)); }
.tea-cup::after { content: ''; position: absolute; width: 23px; height: 31px; border: 2px solid var(--theme-color); border-left: 0; border-radius: 0 18px 18px 0; right: -24px; top: 5px; }
.tea-cup::before { content: ''; position: absolute; inset: -5px -2px auto; height: 10px; border-radius: 50%; background: var(--theme-op); border: 2px solid var(--theme-color); }
.tea-saucer { width: 128px; height: 9px; border: 1px solid var(--theme-color); border-radius: 50%; position: absolute; top: 172px; left: 44px; }
.tea-steam { position: absolute; top: 48px; left: 81px; display: flex; gap: 14px; }
.tea-steam i { display: block; width: 9px; height: 35px; border-left: 1px solid var(--theme-color); border-radius: 50%; opacity: .5; animation: tea-steam 4s ease-in-out infinite; }
.tea-steam i:nth-child(2) { animation-delay: -1.2s; }
.tea-steam i:nth-child(3) { animation-delay: -2.4s; }
.tea-dialog h2 { font: 500 34px/1.5 var(--serif); letter-spacing: .08em; }
.tea-description { margin-top: 16px; font-size: 14px; color: var(--second-text); line-height: 2; }
.tea-timer { margin-top: 22px; font: 400 30px/1.5 var(--serif); font-variant-numeric: tabular-nums; color: var(--theme-color); }
.tea-status { font-size: 12px; color: var(--second-text); min-height: 24px; margin: 8px 0; }
.tea-restart { border: 0; border-bottom: 1px solid var(--card-border); background: transparent; padding: 6px 8px; color: var(--second-text); font-size: 12px; }
@keyframes tea-steam { 50% { transform: translateY(-8px); opacity: .2; } }
@media (max-width: 900px) {
  .home-paths a { padding-inline: 14px; gap: 10px; }
  .home-paths small { max-width: 10em; }
  .reading-container .post-content :is(h1,h2,h3,h4,h5,h6) { scroll-margin-top: 90px; }
  .reading-tools { position: static; margin-bottom: 24px; }
  body.reading-focus .reading-tools { position: sticky; }
}
@media (max-width: 600px) {
  .home-paths { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 18px; }
  .home-paths a, .home-paths a:first-child { display: block; position: relative; padding: 10px 8px; text-align: center; }
  .home-paths small, .path-arrow { display: none; }
  .home-paths .path-index { display: none; }
  .home-paths strong { font-size: 12px; }
  .home-article-list .article-card:not(:has(.article-card-cover:not([hidden]))) .article-card-body { min-height: 190px; }
  .reading-tools { gap: 2px; padding: 4px; width: 100%; }
  .reading-tools-label { display: none; }
  .reading-tool { min-height: 40px; padding-inline: 8px; }
  .reading-size-control { padding-inline: 2px; }
  .search-command-footer { display: none; }
  .search-modal-kicker { font-size: 11px; }
  .search-modal-heading h2 { font-size: 22px; }
  .search-modal-heading { gap: 4px; }
  .search-close kbd { display: none; }
  .search-modal { padding-top: 6vh; }
  .search-command-list { max-height: 52dvh; }
  .tea-open { font-size: 12px; margin-top: 3px; min-height: 32px; }
  .tea-dialog { padding: 58px 20px 24px; }
  .tea-scene { width: 220px; height: 220px; margin-block: 14px; }
}
@media print { .reading-tools, .reading-toast, .image-lightbox, .tea-dialog { display: none !important; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media print {
  .code-toolbar { display: none; }
  .site-header, .site-footer, .sidebar-toc, .sidebar-right, .post-comment, .post-nav, .search-modal, .code-copy-btn, .reading-progress { display: none !important; }
  body { color: #000; background: #fff; }
  .main-container { width: 100%; padding: 0; }
  .post-reading-layout { display: block; }
  .post-content { max-width: none; }
  .post-content pre { white-space: pre-wrap; border: 1px solid #ddd; }
}
/* 禁用 JavaScript 仍可使用核心导航与独立搜索页。 */
html:not(.js) #themeToggle, html:not(.js) .mobile-menu-btn { display: none; }
@media (max-width: 768px) {
  html:not(.js) .header-inner { flex-wrap: wrap; }
  html:not(.js) .header-inner > nav { order: 3; flex: 0 0 100%; }
  html:not(.js) .header-nav { display: grid; position: static; padding: 0; border: 0; box-shadow: none; }
}