/* ==========================================================================
   Alastor.top v2 — 复刻 InlineAMP 观感，尺寸体系重做（clamp + rem，nw 单位归零）
   ========================================================================== */

:root {
  --gold: #DBB302;          /* 装饰线 / 大面积块，保留原色 */
  --gold-ink: #8a6b00;      /* 文字用金，白底对比 5.0:1 */
  --gold-ink-hover: #6f5600;
  --ink: #1a1a1a;
  --title: #000;
  --body: #4a4a4a;
  --muted: #6c675f;         /* 白底 5.61:1，浅底 5.19:1 */
  --line: #e6e6e6;
  --line-soft: #ebebeb;
  --bg: #fff;
  --bg-soft: #f6f6f7;
  --code-bg: #f1f1f1;
  --dark: #222;
  --dark-2: #2a2a2a;
  --dark-line: #4a4a4a;
  --radius: 2px;
  --measure: 46rem;         /* 正文栏 736px，16.96px 字号下约 43 字/行 */
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", "WenQuanYi Micro Hei",
          "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Menlo, Consolas, "Lucida Console", Monaco,
               "PingFang SC", monospace;
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, .04);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: clamp(15px, 0.45vw + 13px, 17px);
  line-height: 1.75;
  color: var(--body);
  background: var(--bg);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  /* clip 而非 hidden：hidden 会让 body 变成滚动容器，sticky 侧栏随之失效 */
  overflow-x: clip;
}

img { max-width: 100%; height: auto; border: 0; }
a { color: var(--gold-ink); text-decoration: none; }
a:hover { color: var(--gold-ink-hover); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
button { font-family: inherit; }

.wrap {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 40px);
  padding-right: clamp(16px, 4vw, 40px);
}

/* ------------------------------ header ---------------------------------- */

.site-header {
  background: var(--dark);
  color: #fff;
}

/* 首页抬头：《游戏人生》空与白，满幅 + 深色渐变遮罩，导航与标语浮在上面 */
.site-header.has-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: clamp(260px, 24vw, 340px);
  background: #14110e url(../img/hero/ngnl-1600.jpg) center 30% / cover no-repeat;
  color: #fff;
}
@supports (background-image: image-set(url("a") 1x)) {
  .site-header.has-hero {
    background-image: image-set(url(../img/hero/ngnl-1600.webp) 1x,
                                url(../img/hero/ngnl-2400.webp) 2x);
  }
}
/* 桌面端用预裁的宽幅版本：两人眼睛都在安全区内，不靠 background-position 猜 */
@media (min-width: 641px) {
  .site-header.has-hero {
    background-image: url(../img/hero/ngnl-desktop-1920.jpg);
    background-position: 50% 50%;
  }
  @supports (background-image: image-set(url("a") 1x)) {
    .site-header.has-hero {
      background-image: image-set(url(../img/hero/ngnl-desktop-1920.webp) 1x,
                                  url(../img/hero/ngnl-desktop-2560.webp) 2x);
    }
  }
}
.site-header.has-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10, 9, 8, .78) 0%, rgba(10, 9, 8, .34) 34%,
                    rgba(10, 9, 8, .52) 68%, rgba(10, 9, 8, .9) 100%),
    radial-gradient(120% 80% at 50% 40%, rgba(0, 0, 0, .1) 0%, rgba(0, 0, 0, .45) 100%);
}
.site-header.has-hero .head-inner,
.site-header.has-hero .tagline { position: relative; z-index: 1; }
.site-header.has-hero .tagline {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-bottom: clamp(34px, 5vw, 62px);
}
.site-header.has-hero .brand,
.site-header.has-hero .menu a { text-shadow: 0 1px 12px rgba(0, 0, 0, .55); }
.site-header.has-hero .tagline-main { text-shadow: 0 2px 22px rgba(0, 0, 0, .6); }

.head-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: clamp(56px, 6vw, 68px);
}

.brand {
  color: #fff;
  font-size: clamp(1.05rem, 0.7vw + 0.85rem, 1.45rem);
  font-weight: 700;
  letter-spacing: .01em;
  white-space: nowrap;
}
.brand:hover { color: var(--gold); }

.menu ul {
  display: flex;
  gap: clamp(14px, 2.2vw, 34px);
  margin: 0;
  padding: 0;
  list-style: none;
}
.menu a {
  display: block;
  padding: 6px 0;
  color: #e9e9e9;
  font-size: clamp(.9rem, 0.3vw + .8rem, 1rem);
  position: relative;
}
.menu a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform .2s ease;
}
.menu a:hover { color: #fff; }
.menu a:hover::after,
.menu a[aria-current="page"]::after { transform: scaleX(1); }
.menu a[aria-current="page"] { color: var(--gold); }

.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-btn { display: none; }

/* 顶部标语 */
.tagline {
  text-align: center;
  padding: clamp(28px, 5vw, 56px) 16px clamp(20px, 3.4vw, 40px);
}
.tagline-main {
  margin: 0;
  color: #fff;
  font-size: clamp(1.35rem, 2.6vw + .5rem, 2.6rem);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.3;
}
.tagline-main::after {
  content: "";
  display: block;
  width: clamp(36px, 4vw, 64px);
  height: 3px;
  margin: clamp(14px, 2vw, 22px) auto 0;
  background: #f6f8fa;
}
.tagline-sub {
  margin: clamp(12px, 1.6vw, 18px) 0 0;
  color: #a9a9a9;
  font-size: clamp(.78rem, .2vw + .72rem, .95rem);
  letter-spacing: .22em;
}

/* ------------------------------ layout ---------------------------------- */

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-top: clamp(24px, 3.5vw, 48px);
  padding-bottom: clamp(36px, 5vw, 72px);
}

/* 手机/平板：正文在上，工具区落到底部；目录折进正文顶部（.toc-inline） */
@media (max-width: 1023px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: clamp(26px, 4vw, 40px); }
  .content { order: 1; }
  .sidebar-tools { order: 2; padding-top: 6px; border-top: 1px solid var(--line); }
  .sidebar-toc { display: none; }
  .toc-inline { display: block; }
}

/* 桌面：工具在左（232px），正文居中，本文目录在右（210px） */
@media (min-width: 1024px) {
  .layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: clamp(28px, 2.4vw, 44px);
  }
  .sidebar-tools { grid-column: 1; grid-row: 1; }
  .content { grid-column: 2; grid-row: 1; min-width: 0; }
}
/* 三列只在够宽时开，1024~1199 用两列，避免正文被挤成窄条 */
@media (min-width: 1200px) {
  .wrap { max-width: 1280px; }
  body.single .layout { grid-template-columns: 240px minmax(0, 1fr) 240px; gap: clamp(24px, 2.4vw, 36px); }
  body.single .sidebar-toc { grid-column: 3; grid-row: 1; display: block; }
  /* 没有目录的文章：正文直接吃下目录那一列 */
  body.single.no-toc .layout { grid-template-columns: 240px minmax(0, 1fr); gap: clamp(24px, 2.4vw, 36px); }
  body.single.no-toc .prose { max-width: 60rem; }
  .toc-inline { display: none; }
}
@media (min-width: 1600px) {
  .wrap { max-width: 1400px; }
}

/* ------------------------------ cards ----------------------------------- */

.post-list { display: grid; gap: clamp(32px, 4.2vw, 56px); }

.card { position: relative; }

.card-media {
  display: block;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--bg-soft);
  /* 统一尺寸的裁切容器：不再按比例自由伸缩，宽屏截图只留中间一条 */
  height: clamp(172px, 18vw, 232px); box-sizing: border-box;
  max-width: 560px;
  /* 给封面一圈浅底内边距：否则白底截图会看着像正文漏出来的表格/窗口 */
  padding: 6px;
  border: 1px solid #e2ded4;
  border-radius: 6px;
  background: #f3f1ea;
}
.card-media img {
  width: 100%;
  height: 100%;
  border-radius: 3px;
  object-fit: cover;
  object-position: top center;
  display: block;
  transition: transform .5s cubic-bezier(.2, .7, .3, 1);
}
.card-media:hover img { transform: scale(1.08); }

/* 摘要只放纯文本：万一正文里混进图片/表格也不让它撑破卡片 */
.card-excerpt img,
.card-excerpt table,
.card-excerpt pre,
.card-excerpt figure { display: none; }
.card-excerpt {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.card-body { padding-top: 18px; }

.card-kicker {
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.card-kicker a { color: var(--muted); }
.card-kicker a:hover { color: var(--gold-ink); }

.card-title {
  margin: 0 0 10px;
  font-size: clamp(1.1rem, .55vw + .95rem, 1.35rem);
  line-height: 1.45;
  font-weight: 700;
  color: var(--title);
}
.card-title a { color: inherit; }
.card-title a:hover { color: var(--gold-ink); }
.card-title::after {
  content: "";
  display: block;
  width: 34px;
  height: 2px;
  margin-top: 10px;
  background: var(--gold);
}

.card-excerpt {
  margin: 0 0 16px;
  color: var(--body);
  font-size: .94rem;
  line-height: 1.8;
}

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
}

.btn-more {
  display: inline-block;
  padding: .42em 1.15em;
  border: 1px solid var(--gold);
  color: var(--gold-ink);
  font-size: .82rem;
  letter-spacing: .08em;
  border-radius: var(--radius);
  transition: background .2s ease, color .2s ease;
}
.btn-more:hover { background: var(--gold); color: #1a1a1a; }

.card-date {
  display: flex;
  align-items: baseline;
  gap: 5px;
  color: var(--ink);
  line-height: 1;
}
.card-date b { font-size: 1.05rem; font-weight: 700; letter-spacing: .02em; }
.card-date span { font-size: .78rem; color: var(--muted); display: flex; flex-direction: column; line-height: 1.3; }
.card-date .card-year { font-style: normal; font-size: .68rem; letter-spacing: .04em; opacity: .85; }

/* 卡片统一：金色竖条贯穿整张卡（含封面），图与文不脱节 */
.card {
  border-left: 3px solid var(--gold);
  padding-left: 18px;
}

/* 无封面时正文自己不再重复画竖条，只留内边距 */
.card.no-media .card-body {
  padding: 4px 0 4px 0;
}

/* 空态 */
.empty {
  padding: 48px 0;
  text-align: center;
  color: var(--muted);
}

/* 分页器：方形金框 */
.pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: clamp(36px, 5vw, 64px);
}
.pager a, .pager span {
  min-width: 2.4rem;
  height: 2.4rem;
  padding: 0 .55rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold);
  color: var(--gold-ink);
  font-size: .88rem;
  border-radius: var(--radius);
}
.pager a:hover { background: var(--gold); color: #1a1a1a; }
.pager .current { background: var(--gold); color: #1a1a1a; border-color: var(--gold); }
.pager .gap { border-color: transparent; color: var(--muted); }

/* ------------------------------ article --------------------------------- */

.article-head { margin-bottom: clamp(24px, 3vw, 36px); }
.article-kicker {
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.article-title {
  margin: 0 0 14px;
  font-size: clamp(1.45rem, 1.5vw + 1rem, 2.1rem);
  line-height: 1.35;
  color: var(--title);
  font-weight: 700;
}
.article-title::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  margin-top: 14px;
  background: var(--gold);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  color: var(--muted);
  font-size: .82rem;
}

.prose {
  max-width: var(--measure);
  font-size: clamp(1rem, .3vw + .92rem, 1.06rem);
  line-height: 1.95;
  color: #3a3a3a;
  overflow-wrap: break-word;
  /* 正文与栏边留出呼吸，别贴着左侧 */
  padding-inline: 0;
  margin-inline: auto;
}
.prose p { margin: 0 0 1.35em; }
/* 标题体系借鉴 Obsidian「Border」主题：左侧彩色竖条 + 递进字号字重 */
.prose h1, .prose h2, .prose h3, .prose h4, .prose h5, .prose h6 {
  position: relative;
  color: var(--title);
  line-height: 1.35;
  margin: 2.1em 0 .75em;
  font-weight: 700;
  /* 竖条挂在栏外，标题文字与正文段落左对齐 */
  padding-left: .62em;
  margin-left: -.62em;
}
.prose h1::before, .prose h2::before, .prose h3::before, .prose h4::before {
  content: "";
  position: absolute;
  left: 0;
  top: .18em;
  bottom: .18em;
  border-radius: 2px;
  background: var(--gold);
}
.prose h1 { font-size: 1.5em; }
.prose h1::before { width: 5px; }
.prose h2 { font-size: 1.38em; padding-bottom: .3em; }
.prose h2::before { width: 4px; }
.prose h3 { font-size: 1.14em; font-weight: 600; }
.prose h3::before { width: 3px; opacity: .8; }
.prose h4 { font-size: 1.06em; font-weight: 600; }
.prose h4::before { width: 2px; opacity: .6; }
.prose h5, .prose h6 { font-size: 1em; font-weight: 600; color: #444; padding-left: 0; }
/* h2 标题下补一条细分隔线，区分大节 */
.prose h2 { border-bottom: 1px solid var(--line); }
.prose a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(219, 179, 2, .45); }
.prose a:hover { text-decoration-color: var(--gold); }
.prose ul, .prose ol { padding-left: 1.85em; margin: 0 0 1.35em; }
.prose li > ul, .prose li > ol { margin: .3em 0 .1em; }
.prose li { margin: .35em 0; }
.prose blockquote {
  margin: 1.6em 0;
  padding: .4em 0 .4em 1.5em;
  border-left: 3px solid var(--gold);
  color: #5a5a5a;
  background: linear-gradient(90deg, rgba(219, 179, 2, .06), transparent 60%);
  position: relative;
}
.prose blockquote::before {
  content: "“";
  position: absolute;
  left: .18em; top: -.35em;
  font-size: 3.2em;
  line-height: 1;
  color: #E6E6E6;
  font-family: Georgia, serif;
  z-index: -1;
}
.prose img { border-radius: var(--radius); margin: .4em 0; }
.prose code {
  font-family: var(--font-mono);
  font-size: .9em;
  background: var(--code-bg);
  padding: .12em .38em;
  border-radius: 2px;
}
.prose pre {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  padding: 16px 18px;
  overflow-x: auto;
  border-radius: var(--radius);
  line-height: 1.65;
  margin: 1.6em 0;
  -webkit-overflow-scrolling: touch;
}
.prose pre code { background: none; padding: 0; font-size: .86em; }
/* railscasts 是深底配色，本站代码块用浅底：把字色与几个过亮的 token 拉回可读 */
.prose pre code.hljs { background: none; color: #2b2b2b; }
.prose pre .hljs-comment, .prose pre .hljs-quote { color: #6f6a63; }
.prose pre .hljs-string, .prose pre .hljs-attr, .prose pre .hljs-template-tag { color: #7a5b00; }
.prose pre .hljs-keyword, .prose pre .hljs-selector-tag { color: #a83f0f; }
.prose pre .hljs-number, .prose pre .hljs-literal { color: #1f6f43; }
.prose pre .hljs-title, .prose pre .hljs-name, .prose pre .hljs-section { color: #1c5e8a; }
.prose pre .hljs-built_in, .prose pre .hljs-type { color: #6a3d8a; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: .92em; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--line); padding: .5em .8em; text-align: left; }
.prose th { background: var(--bg-soft); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4em 0; }

.tags-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 36px; }
.pill {
  display: inline-block;
  padding: .28em .8em;
  background: #F2F2F2;
  color: #555;
  font-size: .78rem;
  border-radius: 999px;
}
.pill:hover { background: var(--gold); color: #1a1a1a; }

.share-row {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin-top: 28px; max-width: var(--measure);
}
.share-label { font-size: .74rem; letter-spacing: .16em; color: var(--muted); margin-right: 4px; }
.share-btn {
  background: #fff; border: 1px solid var(--line); color: #555;
  font-size: .78rem; padding: .32em .85em; border-radius: 999px; cursor: pointer;
}
.share-btn:hover { border-color: var(--gold); color: var(--gold-ink); }

.post-nav {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
  max-width: var(--measure);
}
@media (min-width: 640px) {
  .post-nav { grid-template-columns: 1fr 1fr; }
}
.post-nav a {
  display: block;
  padding: 12px 16px;
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: .9rem;
  border-radius: var(--radius);
}
.post-nav a:hover { border-color: var(--gold); }
.post-nav .dir { display: block; font-size: .72rem; color: var(--muted); letter-spacing: .1em; margin-bottom: 4px; }
.post-nav .next { text-align: right; }

/* giscus 挂载位 */
/* 文章页各块统一与正文同一列、同一起止线（标题区和正文不再错位） */
.article-head, .toc-inline, .post-foot, .comments,
.prose, .post-nav, .tags-row, .share-row { max-width: var(--measure); margin-inline: auto; }
.comments { margin-top: 48px; }
.comments h2 { font-size: 1rem; color: var(--muted); font-weight: 400; letter-spacing: .1em; margin-bottom: 16px; }
.comments .hint { font-size: .82rem; color: var(--muted); border: 1px dashed var(--line); padding: 14px 16px; border-radius: var(--radius); }

/* ------------------------------ sidebar --------------------------------- */

.sidebar { display: grid; gap: clamp(26px, 3vw, 38px); align-content: start; }
@media (min-width: 1024px) {
  /* 整列吸顶；内容高于视口时可单独滚动，正文再长右侧也不会空 */
  .sidebar {
    position: sticky;
    top: 20px;
    align-self: start;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-right: 6px;
    scrollbar-width: thin;
    scrollbar-color: rgba(219, 179, 2, .45) transparent;
  }
  .sidebar::-webkit-scrollbar { width: 5px; }
  .sidebar::-webkit-scrollbar-thumb { background: rgba(219, 179, 2, .45); border-radius: 99px; }
  .sidebar::-webkit-scrollbar-track { background: transparent; }
}

/* 侧栏友链按钮（不再列前几个，全部指向 /links/） */
.widget-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: #3a3a3a;
  font-size: .9rem;
}
.widget-btn:hover { background: #fffbe9; border-color: #e2d6a8; color: var(--gold-ink-hover); }
.widget-btn span { color: var(--gold-ink); }

/* 窄屏折叠目录（正文顶部 <details>） */
.toc-inline { display: none; margin: 0 0 clamp(20px, 3vw, 30px); }
.toc-inline[open] { padding-bottom: 6px; }
.toc-inline summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  font-size: .88rem;
  color: #3d3a34;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.toc-inline summary::-webkit-details-marker { display: none; }
.toc-inline summary::before {
  content: "›";
  color: var(--gold-ink);
  font-size: 1.1rem;
  line-height: 1;
  transition: transform .2s ease;
}
.toc-inline[open] summary::before { transform: rotate(90deg); }
.toc-inline summary .n { margin-left: auto; color: var(--muted); font-size: .78rem; }
.toc-inline .toc { margin-top: 10px; padding: 4px 0 2px; }
.toc-inline .toc a { padding: 7px 0 7px 12px; }

/* 文内目录 */
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc li { margin: 0; }
.toc a {
  display: block;
  padding: 5px 0 5px 12px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-size: .84rem;
  line-height: 1.5;
  color: #4f4a44;
}
.toc a:hover { color: var(--gold-ink); border-left-color: rgba(219, 179, 2, .55); }
.toc a.active { color: var(--ink); border-left-color: var(--gold); font-weight: 600; }
.toc .toc-l3 a { padding-left: 24px; font-size: .79rem; color: var(--muted); }
.toc .toc-l3 a.active { color: var(--ink); }

/* 手机上侧栏落在正文之后，目录只会变成页尾一长串 —— 直接不显示 */
@media (max-width: 1023px) {
  .widget-toc { display: none; }
  /* 但抽屉里必须显示 */
  body.toc-mobile-open .sidebar-toc .widget-toc { display: block; }
}

.widget-title {
  margin: 0 0 14px;
  font-size: .82rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.widget-title::after {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  margin-top: 8px;
  background: var(--gold);
}

.hitokoto {
  min-height: 3.4em;
  font-size: .9rem;
  color: #4a4a4a;
  padding: 14px 16px;
  background: var(--bg-soft);
  border-left: 2px solid var(--gold);
  border-radius: var(--radius);
}
.hitokoto .cursor {
  display: inline-block;
  width: 1px;
  height: 1em;
  background: var(--gold-ink);
  vertical-align: -.12em;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.hitokoto .from { display: block; margin-top: 8px; font-size: .74rem; color: var(--muted); text-align: right; }

.widget-list { list-style: none; margin: 0; padding: 0; }
.widget-list li { padding: 9px 0; border-bottom: 1px dashed var(--line-soft); font-size: .9rem; }
.widget-list li:last-child { border-bottom: 0; }
.widget-list .d { color: var(--muted); font-size: .76rem; margin-left: 6px; }
.widget-list a { color: #444; }
.widget-list a:hover { color: var(--gold-ink); }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }

/* ------------------------------ footer ---------------------------------- */

.site-footer {
  background: var(--dark);
  color: #b8b8b8;
  margin-top: 0;
  padding: clamp(30px, 4vw, 48px) 0 clamp(26px, 3vw, 40px);
  padding-bottom: calc(clamp(26px, 3vw, 40px) + env(safe-area-inset-bottom));
  text-align: center;
  font-size: .88rem;
  line-height: 1.9;
}
.site-footer a { color: var(--gold); }
.site-footer a:hover { color: #f0c93a; }
.site-footer p { margin: 8px 0; }
.footer-line {
  width: 60px;
  height: 1px;
  background: var(--dark-line);
  margin: 0 auto 22px;
}
.footer-cat { height: 30px; width: auto; aspect-ratio: 91 / 45; image-rendering: pixelated; cursor: pointer; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 20px; margin-bottom: 18px; }
.footer-nav a { display: inline-block; padding: 6px 2px; }

/* 手机上：8 个链接排两行，每格 ≥44px 高，不挤成一串 */
@media (max-width: 640px) {
  .footer-nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
    max-width: 360px;
    margin: 0 auto 20px;
  }
  .footer-nav a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 4px;
    font-size: .86rem;
    line-height: 1.2;
    border-radius: 2px;
  }
  .footer-nav a:active { background: rgba(219, 179, 2, .16); }
  /* 右下角回到顶部按钮不压版权行 */
  .site-footer p:last-child { padding: 0 44px; }
}

/* 回到顶部 */
.go-top {
  position: fixed;
  right: calc(18px + env(safe-area-inset-right));
  bottom: calc(20px + env(safe-area-inset-bottom));
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: var(--gold);
  color: #1a1a1a;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 60;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .18);
}
.go-top.show { opacity: 1; transform: none; pointer-events: auto; }
.go-top:hover { background: #f0c93a; }

/* 点击爱心 */
.heart {
  width: 10px; height: 10px;
  position: fixed;
  background: #f00;
  transform: rotate(45deg);
  pointer-events: none;
  z-index: 99999;
}
.heart::after, .heart::before {
  content: ""; width: inherit; height: inherit; background: inherit;
  border-radius: 50%; position: fixed;
}
.heart::after { top: -5px; }
.heart::before { left: -5px; }

/* ------------------------------ tables: tags / archives ------------------ */

.page-head { margin-bottom: clamp(26px, 3vw, 40px); }
.page-head h1 {
  margin: 0;
  font-size: clamp(1.5rem, 1.2vw + 1.1rem, 2rem);
  color: var(--title);
}
.page-head h1::after {
  content: ""; display: block; width: 44px; height: 3px;
  background: var(--gold); margin-top: 12px;
}
.page-head p { color: var(--muted); margin: 14px 0 0; font-size: .9rem; }

.tag-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr));
  gap: 12px;
}
.tag-card {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  color: var(--ink);
  transition: background .2s ease, border-color .2s ease;
}
.tag-card:hover { background: #fffdf2; border-color: var(--gold); }
.tag-card .n { font-size: 1rem; font-weight: 600; }
.tag-card .c { font-size: .78rem; color: var(--muted); }

.year-block { margin-bottom: clamp(28px, 3.5vw, 44px); }
.year-title {
  display: flex; align-items: baseline; gap: 12px;
  font-size: 1.4rem; color: var(--title); margin: 0 0 6px;
  font-weight: 700;
}
.year-title small { font-size: .78rem; color: var(--muted); font-weight: 400; letter-spacing: .1em; }
.year-block ul { list-style: none; margin: 0; padding: 0; }
.year-block li {
  display: flex; gap: 16px; align-items: baseline;
  padding: 11px 0; border-bottom: 1px dashed var(--line-soft);
}
.year-block li a { color: #333; font-size: .98rem; }
.year-block li a:hover { color: var(--gold-ink); }
.year-block time { color: var(--muted); font-size: .78rem; min-width: 3.3em; font-variant-numeric: tabular-nums; }

/* ------------------------------ about ----------------------------------- */

.about-card {
  max-width: 46rem;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}
.about-head { display: flex; align-items: center; gap: 18px; margin-bottom: 24px; }
.about-head img { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; background: var(--bg-soft); }
.about-head h1 { margin: 0; font-size: 1.4rem; color: var(--title); }
.about-head p { margin: 4px 0 0; color: var(--muted); font-size: .82rem; }
.about-card h2 {
  font-size: .86rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); margin: 26px 0 10px; font-weight: 600;
}
.about-card p { margin: 0 0 10px; font-size: .96rem; }
.about-card .social { display: flex; flex-wrap: wrap; gap: 10px; }
.about-card .social a {
  padding: .34em .95em; border: 1px solid var(--line); border-radius: 999px;
  font-size: .82rem; color: #444;
}
.about-card .social a:hover { border-color: var(--gold); color: var(--gold-ink); }

/* ------------------------------ 404 ------------------------------------- */

.err-page {
  min-height: 54vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(24px, 5vw, 64px) 0;
}
.err-code {
  font-size: clamp(4.5rem, 12vw, 9rem);
  font-weight: 800;
  line-height: 1;
  color: transparent;
  background: linear-gradient(135deg, #DBB302, #8a6b00 60%, #222);
  -webkit-background-clip: text;
  background-clip: text;
  letter-spacing: .02em;
}
.err-page h1 { font-size: clamp(1.1rem, 1vw + .9rem, 1.5rem); color: var(--title); margin: 18px 0 8px; }
.err-page p { color: var(--muted); margin: 0 0 6px; }
.err-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 24px; }
.btn-solid {
  display: inline-block; padding: .55em 1.4em; background: var(--gold); color: #1a1a1a;
  border-radius: var(--radius); font-size: .9rem;
}
.btn-solid:hover { background: #f0c93a; color: #1a1a1a; }
.btn-ghost {
  display: inline-block; padding: .55em 1.4em; border: 1px solid var(--gold); color: var(--gold-ink);
  border-radius: var(--radius); font-size: .9rem;
}
.btn-ghost:hover { background: var(--gold); color: #1a1a1a; }

/* ------------------------------ search ---------------------------------- */

.search-box { max-width: 46rem; }
.search-box input[type="search"] {
  width: 100%;
  padding: .85em 1.1em;
  font-size: 1rem;
  font-family: inherit;
  color: var(--ink);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  background: #fff;
  -webkit-appearance: none;
}
.search-box input[type="search"]:focus { border-color: var(--gold); outline: none; }
.search-meta { margin: 14px 0 0; font-size: .82rem; color: var(--muted); }
.search-results { list-style: none; margin: 22px 0 0; padding: 0; max-width: 46rem; }
.search-results li { padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.search-results h2 { font-size: 1.05rem; margin: 0 0 6px; color: var(--title); font-weight: 700; }
.search-results h2 a { color: inherit; }
.search-results h2 a:hover { color: var(--gold-ink); }
.search-results p { margin: 0; font-size: .88rem; color: var(--body); }
.search-results .meta { font-size: .76rem; color: var(--muted); margin-top: 6px; }
.search-results mark { background: rgba(219, 179, 2, .35); color: inherit; padding: 0 .1em; }

/* ------------------------------ links page ------------------------------ */

.links-page {
  position: relative;
  margin: 0;
  padding: clamp(34px, 5vw, 64px) clamp(16px, 4vw, 40px) clamp(40px, 6vw, 80px);
  background:
    radial-gradient(900px 380px at 12% -10%, rgba(219, 179, 2, .16), transparent 70%),
    radial-gradient(700px 320px at 92% 0%, rgba(219, 179, 2, .09), transparent 70%),
    linear-gradient(180deg, #fdfbf3 0%, #ffffff 62%);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}
.links-page::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 34, 34, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 34, 34, .035) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  pointer-events: none;
}
.links-hero {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
}
.links-hero h1 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw + .7rem, 2.8rem);
  color: var(--title);
  letter-spacing: .01em;
}
.links-hero h1 span { color: var(--gold); }
.links-hero .sub { margin: 10px 0 0; color: #5f5a4d; font-size: .92rem; }
.links-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.links-actions button {
  font-size: .84rem;
  padding: .5em 1.2em;
  color: var(--gold-ink);
  background: rgba(255, 255, 255, .7);
  border: 1px solid var(--gold);
  border-radius: 999px;
  cursor: pointer;
  backdrop-filter: blur(4px);
}
.links-actions button:hover { background: var(--gold); color: #1a1a1a; }

.band {
  position: relative;
  margin-top: clamp(26px, 3.6vw, 44px);
  max-width: 1180px;              /* 与 .band-label 同宽，卡片不再顶到屏幕边缘 */
  margin-left: auto;
  margin-right: auto;
}
.band::before, .band::after {
  content: "";
  position: absolute;
  top: 0; bottom: 18px;
  width: clamp(18px, 3vw, 46px);
  pointer-events: none;
  z-index: 2;
}
.band::before { left: 0; background: linear-gradient(90deg, #fdfbf3, rgba(253, 251, 243, 0)); }
.band::after { right: 0; background: linear-gradient(270deg, #fdfbf3, rgba(253, 251, 243, 0)); }
.band-label {
  max-width: 1180px;
  margin: 0 auto 10px;
  padding: 0 clamp(16px, 4vw, 40px);
  font-size: .74rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: #6a6559;
}
.band-scroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 6px clamp(16px, 4vw, 40px) 18px;
  scrollbar-width: none;              /* 隐藏默认滚动条，靠箭头/拖动 */
  -ms-overflow-style: none;
  overscroll-behavior-x: contain;
  scroll-behavior: smooth;
}
.band-scroll::-webkit-scrollbar { display: none; }
.band-scroll.dragging { cursor: grabbing; scroll-snap-type: none; }
.band-scroll.dragging .friend { pointer-events: none; }

.band-track { position: relative; }
.band-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  padding: 0;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--gold-ink);
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(219, 179, 2, .5);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(34, 34, 34, .12);
  transition: background .2s ease, color .2s ease, opacity .2s ease;
}
.band-arrow.prev { left: clamp(6px, 1.6vw, 22px); }
.band-arrow.next { right: clamp(6px, 1.6vw, 22px); }
.band-arrow:hover { background: var(--gold); color: #1a1a1a; }
.band-arrow:disabled { opacity: 0; pointer-events: none; }
.band-track.no-overflow .band-arrow { display: none; }
@media (max-width: 640px) {
  .band-arrow { width: 34px; height: 34px; font-size: 1.2rem; }
  /* 手机端把左右留白放宽到 44px，箭头落在空白里不压卡片 */
  .band-scroll { padding-left: 44px; padding-right: 44px; }
  .band-scroll .friend { flex-basis: 74vw; }
}

.friend {
  flex: 0 0 clamp(240px, 26vw, 300px);
  scroll-snap-align: start;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, .82);
  border: 1px solid rgba(34, 34, 34, .08);
  border-radius: 10px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .8) inset;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  backdrop-filter: blur(2px);
}
.friend:hover {
  transform: translateY(-3px);
  border-color: rgba(219, 179, 2, .55);
  box-shadow: 0 10px 24px rgba(34, 34, 34, .08);
}
.friend .ava {
  flex: 0 0 46px;
  width: 46px; height: 46px;
  border-radius: 50%;
  object-fit: cover;
  background: #f3efe2;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px rgba(219, 179, 2, .5);
}
.friend .ava-fallback {
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: var(--gold-ink); font-size: 1.1rem;
}
.friend .txt { min-width: 0; }
.friend .nm { display: block; color: var(--title); font-weight: 600; font-size: .95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.friend .ds { display: block; color: #565144; font-size: .8rem; margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.links-note {
  position: relative;
  max-width: 1180px;
  margin: clamp(30px, 4vw, 52px) auto 0;
  padding: 0 clamp(16px, 4vw, 40px);
  color: #6f6a5c;
  font-size: .84rem;
}
.links-note a { border-bottom: 1px dotted var(--gold); }

/* 互换友链 */
.apply-card {
  max-width: 46rem;
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: clamp(22px, 3vw, 34px);
}
.apply-card h2 { font-size: 1.05rem; margin: 26px 0 10px; color: var(--title); }
.apply-card h2:first-child { margin-top: 0; }
.apply-card ol, .apply-card ul { padding-left: 1.3em; margin: 0 0 16px; }
.apply-card li { margin: .45em 0; font-size: .94rem; }
.apply-card pre {
  background: var(--bg-soft); border-left: 3px solid var(--gold);
  padding: 14px 16px; font-size: .85rem; overflow-x: auto;
  font-family: var(--font-mono);
}
.info-card { margin-top: 22px; padding: 16px 18px; background: #fffdf2; border-radius: var(--radius); font-size: .9rem; }
.info-card b { color: var(--ink); }

/* ------------------------------ 响应式 ---------------------------------- */

@media (max-width: 640px) {
  /* 移动端全屏抽屉 */
  .nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    margin-left: auto;
    cursor: pointer;
    order: 3;
  }
  .nav-btn span, .nav-btn span::before, .nav-btn span::after {
    display: block; width: 20px; height: 2px; background: #fff; content: "";
    position: relative; transition: transform .2s ease;
  }
  .nav-btn span::before { position: absolute; top: -6px; }
  .nav-btn span::after { position: absolute; top: 6px; }
  .menu {
    position: fixed;
    inset: 0;
    z-index: 80;
    background: rgba(24, 24, 24, .98);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s ease, visibility .2s;
  }
  .menu ul { flex-direction: column; gap: 22px; text-align: center; }
  .menu a { font-size: 1.15rem; }
  .nav-toggle:checked ~ .menu { opacity: 1; visibility: visible; }
  .nav-toggle:checked ~ .nav-btn span { background: transparent; }
  .nav-toggle:checked ~ .nav-btn span::before { transform: translateY(6px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-btn span::after { transform: translateY(-6px) rotate(-45deg); }
  .site-header.has-hero {
    /* 手机端不超过正方形：高度封顶在视口宽度，且留出人物脸部的构图 */
    min-height: 0;
    height: min(78vw, 360px);
    background-position: 50% 22%;
  }
  .site-header.has-hero .tagline { padding-top: 8px; padding-bottom: 40px; }
  .site-header.has-hero .tagline-sub { margin-top: 14px; }
  .card-media { height: 202px; max-width: none; }
  .card-excerpt { -webkit-line-clamp: 2; font-size: .92rem; }
  .tagline { padding-top: 26px; }

}



@media (min-width: 768px) {
  .post-nav { gap: 14px; }
}

@media (min-width: 1024px) {
  .card-foot { padding-top: 14px; }
}

@media (min-width: 1440px) {
  .wrap { max-width: 1440px; }
}

/* 带鱼屏：正文列封顶，留白对称 */
@media (min-width: 1920px) {
  .wrap { max-width: 1560px; }
  .prose { max-width: var(--measure); }
  .site-header { padding-top: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

/* ---- markdown 扩展：数学 / 任务列表 / 脚注 / 定义列表 / 上下标 ---- */
.prose .arithmatex { font-size: 1.02em; }
.prose .katex-display {
  display: block;
  overflow-x: auto;
  overflow-y: hidden;
  padding: .35em 0;
  margin: 1.5em 0;
}
.prose .katex-display > .katex { white-space: normal; }
.prose .arithmatex-error {
  display: block;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: .86em;
  color: #b00020;
  background: #fdf2f2;
  border-left: 3px solid #b00020;
  padding: .6em .8em;
  white-space: pre-wrap;
  overflow-x: auto;
}

.prose ul.task-list { list-style: none; padding-left: .2em; }
.prose .task-list-item { display: flex; align-items: flex-start; gap: .55em; }
.prose .task-list-item > input[type="checkbox"] {
  margin: .45em 0 0;
  accent-color: var(--gold, #dbb302);
  flex: 0 0 auto;
}

.prose .footnote { margin-top: 2.6em; font-size: .9em; color: var(--muted); }
.prose .footnote hr { margin: 0 0 1em; }
.prose .footnote-ref { text-decoration: none; font-weight: 600; padding: 0 .1em; }
.prose .footnote-backref { text-decoration: none; }

.prose dl { margin: 0 0 1.35em; }
.prose dt { font-weight: 600; }
.prose dd { margin: .2em 0 .6em 1.4em; color: var(--text-soft, inherit); }
.prose sub, .prose sup { font-size: .74em; line-height: 0; }
.prose abbr[title] { text-decoration: underline dotted; cursor: help; }

/* mermaid 图：能横滚，不撑破正文列 */
.prose .mermaid {
  margin: 1.8em 0;
  padding: 18px 16px;
  background: #fcfbf7;
  border: 1px solid var(--line);
  border-radius: 4px;
  text-align: center;
  overflow-x: auto;
  overscroll-behavior-x: contain;
}
.prose .mermaid svg { max-width: 100%; height: auto; }
/* 手机上不缩小到看不清：保持原生尺寸，图内横向滚动 */
@media (max-width: 640px) {
  .prose .mermaid { text-align: left; }
  .prose .mermaid svg { max-width: none; }
}
.prose .mermaid.mermaid-error {
  text-align: left;
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: .84em;
  color: #b00020;
  border-color: #f0d5d5;
  background: #fdf2f2;
}

/* 列表内缩进围栏的兜底渲染（build.py convert_indented_fences） */
.prose code.fence-fallback {
  display: block;
  white-space: pre-wrap;
  overflow-x: auto;
  background: var(--bg-soft, #f6f4ef);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .8em 1em;
  margin: .9em 0;
  font-size: .86em;
  line-height: 1.6;
}

/* 目录列的出现时机：≥1200 三列用右侧固定目录，以下折进正文顶部 */
@media (max-width: 1199px) {
  .layout .sidebar-toc { display: none; }
  .layout .toc-inline { display: block; }
}
@media (min-width: 1200px) {
  .layout .sidebar-toc { display: grid; }
  .layout .toc-inline { display: none; }
}

/* 段首缩进的两类例外：纯图片/纯公式段落、以及紧跟在小标题下的引导语不缩 */
.prose p:has(> img:only-child),
.prose p:has(> a > img:only-child),
.prose p:has(.katex-display) { text-indent: 0; }
.prose blockquote p, .prose li p, .prose td p, .prose th p { text-indent: 0; }

/* 目录可收起：收起后正文吃满两列，右侧留一枚半透明浮标 */
.toc-collapse {
  float: right;
  font: inherit;
  font-size: .68rem;
  font-weight: 400;
  color: var(--muted);
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 1px 9px;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}
.toc-collapse:hover { color: var(--gold-ink); border-color: #e2d6a8; }
.toc-restore {
  display: none;
  position: fixed;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  writing-mode: vertical-rl;
  letter-spacing: .18em;
  font-size: .74rem;
  padding: 12px 6px;
  color: var(--gold-ink);
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(219, 179, 2, .38);
  border-radius: 8px;
  backdrop-filter: blur(6px);
  cursor: pointer;
  opacity: .55;
  transition: opacity .2s, background .2s;
}
.toc-restore:hover, .toc-restore:focus-visible { opacity: 1; background: #fff; }
@media (min-width: 1200px) {
  body.single.toc-collapsed .layout { grid-template-columns: 240px minmax(0, 1fr); }
  body.single.toc-collapsed .sidebar-toc { display: none; }
  body.single.toc-collapsed .prose,
  body.single.toc-collapsed .article-head,
  body.single.toc-collapsed .toc-inline { max-width: 60rem; }
  body.single.toc-collapsed .toc-restore { display: block; }
}


/* 手机端目录：右侧竖排浮标 → 弹出目录抽屉 */
@media (max-width: 1199px) {
  body.single .toc-restore { display: block; right: 8px; }
  body.single .sidebar-toc { display: none; }
  body.toc-mobile-open .sidebar-toc {
    display: block;
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: min(82vw, 320px);
    z-index: 92;
    background: #fff;
    box-shadow: -10px 0 34px rgba(0, 0, 0, .18);
    overflow-y: auto;
    padding: 22px 18px 40px;
    -webkit-overflow-scrolling: touch;
  }
  body.toc-mobile-open::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 91;
    background: rgba(20, 20, 20, .38);
  }
  body.toc-mobile-open { overflow: hidden; }
  .toc-close {
    position: absolute;
    top: 12px; right: 12px;
    width: 30px; height: 30px;
    font-size: .8rem;
    color: var(--muted);
    background: #f6f6f7;
    border: 1px solid var(--line);
    border-radius: 50%;
    cursor: pointer;
  }
  .toc-collapse { display: none; }
}
.toc-close { display: none; }
@media (max-width: 1199px) { .toc-close { display: block; } }

/* 菜单所在的头部内层要压在 .tagline 之上，否则全屏菜单被标语盖住、点不动 */
@media (max-width: 640px) {
  .site-header.has-hero .head-inner, .head-inner { position: relative; z-index: 85; }
  .nav-btn { position: relative; z-index: 90; }
}


/* 回到主页：与回顶同款圆钮，叠在它上方一组 */
.go-home {
  position: fixed;
  right: calc(18px + env(safe-area-inset-right));
  bottom: calc(74px + env(safe-area-inset-bottom));
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--gold);
  color: #1a1a1a;
  text-decoration: none;
  z-index: 60;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .18);
  transition: transform .2s ease, box-shadow .2s ease;
}
.go-home:hover { transform: translateY(-2px); box-shadow: 0 9px 22px rgba(0, 0, 0, .22); color: #1a1a1a; }
.go-home:focus-visible { outline: 2px solid #8a6b00; outline-offset: 2px; }


/* 首页就在主页，不需要「回到主页」 */
body.home .go-home { display: none; }


/* 文章页：正文列放宽到 50.5rem，左右与侧栏的空白约为原来一半 */
body.single { --measure: 50.5rem; }


/* 无目录：正文不居中，从与有目录时相同的左线开始，直接铺到右缘 */
@media (min-width: 1200px) {
  body.single.no-toc .prose,
  body.single.no-toc .article-head,
  body.single.no-toc .post-foot,
  body.single.no-toc .comments,
  body.single.no-toc .tags-row,
  body.single.no-toc .share-row,
  body.single.no-toc .post-nav { margin-inline: 0; max-width: none; }
}


/* 上下篇：日期跟着标题，方向一眼可辨 */
.post-nav .pn-date {
  display: block;
  margin-top: 4px;
  font-size: .74rem;
  font-style: normal;
  color: var(--muted);
}


/* 友链：自适应换行的卡片墙，页面上不再横向滚动 */
.friend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin: 16px 0 8px;
}
.friend-grid .friend { width: auto; min-width: 0; }
@media (max-width: 640px) {
  .friend-grid { grid-template-columns: 1fr; gap: 10px; }
}


/* 只有上一篇或只有下一篇时，按钮直接占满整行 */
.post-nav.single a { grid-column: 1 / -1; }


/* 侧栏里的留言板：收窄边距，标题用小号 */
.sidebar .comments { margin: 0; width: 100%; max-width: none; }
.sidebar .comments h2 {
  font-size: .78rem;
  color: var(--muted);
  font-weight: 400;
  letter-spacing: .14em;
  margin: 0 0 10px;
}

/* touch 1792317899 */