/*
Theme Name: 同月小站 Samemoon
Theme URI: http://samemoon.cn
Author: Simon East
Description: 正常博客风格，双主题（纸月/夜月），思源宋体，门户式首页 + 沉浸式阅读页（TOC/阅读工具条）。个人非经营性纯展示。
Version: 2.0.0
Requires at least: 6.0
Tested up to: 7.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: samemoon
*/

/* ============================================================
   设计 Tokens（双主题：浅色纸月 / 深色夜月）
   ============================================================ */
:root, :root[data-theme="light"] {
  --bg: #f6f2ea;
  --bg-soft: #efe9dd;
  --bg-deep: #e8e1d2;
  --ink: #292b30;
  --ink-soft: #565b63;
  --ink-faint: #959aa3;
  --accent: #46607a;
  --accent-strong: #33495f;
  --accent-soft: #dce3ea;
  --seal: #8a6a44;
  --line: #d9d2c3;
  --line-soft: #e6dfd2;
  --card: #fbf8f2;
  --measure: 52rem;
  --measure-narrow: 40rem;
}
:root[data-theme="dark"] {
  --bg: #12161f;
  --bg-soft: #181d28;
  --bg-deep: #0e1219;
  --ink: #e6e4dd;
  --ink-soft: #a6acb8;
  --ink-faint: #69707d;
  --accent: #93aec6;
  --accent-strong: #b6cbdd;
  --accent-soft: #27303d;
  --seal: #b3966a;
  --line: #2b3442;
  --line-soft: #232b38;
  --card: #191e2a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  background: #f6f2ea;
  min-height: 100%;
}
:root[data-theme="dark"] html { background: #12161f; }

/* ============ 思源宋体（书宋风格，本地子集化） ============ */
@font-face {
  font-family: "ShuSong";
  src: url("fonts/shusong-subset.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

body {
  background: transparent; /* 背景交给 body::before 固定层，避免跳页重绘花屏 */
  color: var(--ink);
  font-family: "ShuSong", "Iowan Old Style", "Palatino Linotype", Georgia, "Songti SC", "STSong", "SimSun", serif;
  font-size: 1rem;
  line-height: 1.9;
  letter-spacing: 0.01em;
  transition: color 0.35s ease;
}

/* ============ 背景层：body::before 固定层（首帧就位，跳页不闪） ============ */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-color: #f6f2ea;
  background-image:
    linear-gradient(rgb(70 96 122 / 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgb(70 96 122 / 0.045) 1px, transparent 1px),
    radial-gradient(ellipse 65% 42% at 50% -8%, rgb(255 248 225 / 0.65), transparent 72%),
    linear-gradient(180deg, #f7f3e9 0%, #f1ead9 100%);
  background-size: 28px 28px, 28px 28px, 100% 100%, 100% 100%;
  background-repeat: repeat, repeat, no-repeat, no-repeat;
}

/* 深色夜月：星夜（单张 SVG 星星背景图 + 月光晕 + 渐变） */
:root[data-theme="dark"] body::before {
  background-color: #12161f;
  background-image:
    /* 大亮星（3颗） */
    radial-gradient(2.6px 2.6px at 14% 16%, rgb(235 242 250 / 0.95), transparent),
    radial-gradient(2.2px 2.2px at 68% 12%, rgb(225 238 250 / 0.85), transparent),
    radial-gradient(2.8px 2.8px at 86% 22%, rgb(240 245 252 / 0.90), transparent),
    /* 中星（6颗） */
    radial-gradient(1.8px 1.8px at 30% 8%, rgb(205 222 240 / 0.70), transparent),
    radial-gradient(1.7px 1.7px at 52% 18%, rgb(200 218 238 / 0.65), transparent),
    radial-gradient(1.9px 1.9px at 78% 34%, rgb(210 226 242 / 0.70), transparent),
    radial-gradient(1.7px 1.7px at 22% 38%, rgb(195 214 234 / 0.60), transparent),
    radial-gradient(1.8px 1.8px at 92% 48%, rgb(200 218 238 / 0.60), transparent),
    radial-gradient(1.7px 1.7px at 8% 58%, rgb(195 214 234 / 0.55), transparent),
    /* 小星（12颗） */
    radial-gradient(1.3px 1.3px at 40% 4%, rgb(185 205 228 / 0.50), transparent),
    radial-gradient(1.2px 1.2px at 60% 6%, rgb(180 200 224 / 0.45), transparent),
    radial-gradient(1.2px 1.2px at 76% 5%, rgb(185 205 228 / 0.50), transparent),
    radial-gradient(1.3px 1.3px at 12% 26%, rgb(178 198 222 / 0.45), transparent),
    radial-gradient(1.2px 1.2px at 88% 8%, rgb(180 200 224 / 0.40), transparent),
    radial-gradient(1.2px 1.2px at 35% 26%, rgb(175 195 220 / 0.40), transparent),
    radial-gradient(1.3px 1.3px at 64% 30%, rgb(178 198 222 / 0.42), transparent),
    radial-gradient(1.2px 1.2px at 16% 48%, rgb(172 192 218 / 0.38), transparent),
    radial-gradient(1.3px 1.3px at 48% 40%, rgb(175 195 220 / 0.40), transparent),
    radial-gradient(1.2px 1.2px at 72% 52%, rgb(170 190 216 / 0.35), transparent),
    radial-gradient(1.3px 1.3px at 84% 62%, rgb(172 192 218 / 0.35), transparent),
    radial-gradient(1.2px 1.2px at 6% 72%, rgb(168 188 214 / 0.32), transparent),
    radial-gradient(ellipse 70% 45% at 50% -10%, rgb(240 230 200 / 0.13), transparent 75%),
    linear-gradient(180deg, #151c2b 0%, #0d1119 100%);
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%;
  background-repeat: no-repeat;
}

/* ============ 背景月相（仅深色夜月显示，浅色纸月保持纯网格） ============ */
.moon-bg {
  position: fixed;
  top: 5rem;
  right: 2rem;
  width: 15rem;
  height: 15rem;
  z-index: 0;
  pointer-events: none;
  display: none;
}
.moon-bg svg { width: 100%; height: auto; display: block; }
:root[data-theme="dark"] .moon-bg { display: block; opacity: 0.55; }
:root, :root[data-theme="light"] { --moon-fill: #e8dcc0; --moon-void: #f6f2ea; }
:root[data-theme="dark"] { --moon-fill: #f0e6c8; --moon-void: #141a25; }

/* 站名旁月相注记（仅深色显示） */
.moon-badge {
  display: none;
  margin-top: 0.6rem;
  font-size: 0.8rem;
  font-style: italic;
  color: var(--ink-faint);
  letter-spacing: 0.12em;
}
:root[data-theme="dark"] .moon-badge { display: inline-block; }

/* 主体内容置于月相之上 */
.site-header, main, .site-footer { position: relative; z-index: 1; }

a { color: var(--accent); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--ink); }
img { max-width: 100%; height: auto; }
.container { max-width: var(--measure); margin: 0 auto; padding: 0 1.6rem; }

/* ============ 双主题切换按钮（下移并融入背景） ============ */
.theme-toggle {
  position: fixed;
  top: 3.6rem;
  right: 1.1rem;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: color-mix(in srgb, var(--card) 72%, transparent);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.28rem 0.35rem 0.28rem 0.8rem;
  font-family: inherit;
  font-size: 0.72rem;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--ink); background: var(--card); }
.theme-toggle .tgl {
  width: 30px; height: 18px;
  border-radius: 9px;
  background: var(--bg-deep);
  position: relative;
}
.theme-toggle .tgl::after {
  content: "☾";
  position: absolute;
  top: 50%; left: 3px;
  transform: translateY(-50%);
  font-size: 0.7rem;
  color: #f0e6c8;
  line-height: 1;
}
:root[data-theme="dark"] .theme-toggle .tgl { background: var(--accent); }
:root[data-theme="dark"] .theme-toggle .tgl::after { content: "☀"; left: auto; right: 3px; color: #f6f2ea; }

/* ============ 阅读进度条 ============ */
.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--accent);
  z-index: 200;
  transition: width 0.1s linear;
}

/* ============ 报头 ============ */
.site-header {
  padding: 3rem 0 0;
}
.brand { text-align: center; }
.brand .moon-mark {
  display: inline-block;
  color: var(--seal);
  font-size: 1.05rem;
  letter-spacing: 0.4em;
  margin-bottom: 0.5rem;
}
.brand .site-title {
  font-size: 2.8rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
  color: var(--ink);
  line-height: 1.2;
}
.brand .site-title a { color: inherit; }
.brand .slogan {
  margin-top: 0.8rem;
  color: var(--ink-faint);
  font-size: 0.88rem;
  letter-spacing: 0.28em;
  text-indent: 0.28em;
}
.brand .slogan .slogan-en {
  font-style: italic;
  margin-left: 0.4rem;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
}

/* ============ 主导航 ============ */
.cat-nav {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.9rem;
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
}
.cat-nav a {
  color: var(--ink-soft);
  font-size: 0.95rem;
  padding: 0.3rem 0.2rem;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.cat-nav a:hover { color: var(--ink); border-bottom-color: var(--line); }
.cat-nav a.active { color: var(--accent-strong); border-bottom-color: var(--accent); }
.cat-nav .nav-spacer { margin-left: auto; }
.cat-nav .nav-link { font-size: 0.88rem; }

/* 搜索框 */
.site-search {
  display: flex;
  gap: 0.4rem;
  margin-top: 1.1rem;
  max-width: 22rem;
}
.site-search input {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.4rem 0.8rem;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--ink);
  transition: border-color 0.15s;
}
.site-search input:focus { outline: none; border-color: var(--accent); }
.site-search button {
  background: none;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.4rem 0.9rem;
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.15s;
}
.site-search button:hover { border-color: var(--accent); color: var(--accent); }

/* ============================================================
   首页（front-page.php）
   ============================================================ */

/* 精选大图 */
.hero-post {
  margin: 2.4rem 0 0;
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
}
.hero-post a { display: block; }
.hero-post .hero-img {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 8;
  object-fit: cover;
  background: var(--bg-soft);
}
.hero-post .hero-overlay {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 3rem 2rem 1.4rem;
  background: linear-gradient(to top, rgb(0 0 0 / 0.72), transparent);
  color: #f5f1e6;
}
.hero-post .hero-cat {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: #e8c98f;
  border: 1px solid rgb(232 201 143 / 0.6);
  padding: 0.1rem 0.7rem;
  border-radius: 2px;
  margin-bottom: 0.5rem;
}
.hero-post .hero-title {
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: #fff;
  text-shadow: 0 1px 3px rgb(0 0 0 / 0.4);
}
.hero-post .hero-date {
  font-size: 0.78rem;
  color: rgb(245 241 230 / 0.75);
  margin-top: 0.3rem;
}
.hero-post:not(:has(.hero-img)) .hero-overlay {
  position: static;
  background: var(--bg-soft);
  color: var(--ink);
}
.hero-post:not(:has(.hero-img)) .hero-title { color: var(--ink); text-shadow: none; }
.hero-post:not(:has(.hero-img)) .hero-date { color: var(--ink-faint); }
.hero-post:not(:has(.hero-img)) .hero-cat { color: var(--seal); border-color: var(--seal); }

/* 分类面板 */
.cat-panel { display: none; padding: 2.6rem 0 2rem; border-bottom: 1px solid var(--line); }
.cat-panel.active { display: block; }
.cat-panel h2 {
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--accent-strong);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}
.cat-panel h2 .cat-seq { color: var(--seal); font-size: 0.82rem; letter-spacing: 0.1em; }
.cat-panel h2 .cat-desc { font-size: 0.8rem; color: var(--ink-faint); letter-spacing: 0.06em; font-weight: 400; }

/* 文章列表 */
.post-list { list-style: none; }
.post-list li {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  padding: 0.75rem 0;
  border-bottom: 1px dotted var(--line-soft);
}
.post-list li:last-child { border-bottom: none; }
.post-list .post-seq {
  color: var(--seal);
  font-size: 0.78rem;
  font-family: "SF Mono", "Cascadia Code", Consolas, monospace;
  letter-spacing: 0.08em;
  flex-shrink: 0;
  min-width: 3em;
}
.post-list .post-title { font-size: 1rem; color: var(--ink); flex: 1; }
.post-list .post-title:hover { color: var(--accent); }
.post-list .post-date {
  color: var(--ink-faint);
  font-size: 0.78rem;
  font-family: "SF Mono", "Cascadia Code", Consolas, monospace;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

/* 摄影图墙 */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.8rem;
}
.photo-grid .photo-item { display: block; overflow: hidden; border: 1px solid var(--line-soft); border-radius: 3px; }
.photo-grid .photo-item img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.3s;
}
.photo-grid .photo-item:hover img { transform: scale(1.04); }
.photo-grid .photo-item .photo-cap {
  padding: 0.45rem 0.6rem;
  font-size: 0.76rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--line-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 摄影精选条（横向滚动） */
.photo-strip-section {
  padding: 2.4rem 0 2rem;
  border-bottom: 1px solid var(--line);
}
.photo-strip-section h2 {
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--accent-strong);
  margin-bottom: 1.3rem;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}
.photo-strip-section h2 .cat-seq { color: var(--seal); font-size: 0.82rem; letter-spacing: 0.1em; }
.photo-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 190px;
  gap: 0.7rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
}
.photo-strip::-webkit-scrollbar { height: 5px; }
.photo-strip::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }
.photo-strip .strip-item { display: block; border: 1px solid var(--line-soft); border-radius: 3px; overflow: hidden; }
.photo-strip .strip-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}
.photo-strip .strip-item .strip-cap {
  padding: 0.4rem 0.55rem;
  font-size: 0.74rem;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-top: 1px solid var(--line-soft);
}

/* 全部文章（时间线） */
.all-posts-section { padding: 2.4rem 0 2rem; border-bottom: 1px solid var(--line); }
.all-posts-section h2 {
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--accent-strong);
  margin-bottom: 1.3rem;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}
.all-posts-section h2 .cat-seq { color: var(--seal); font-size: 0.82rem; letter-spacing: 0.1em; }

/* ============================================================
   阅读页（single.php）
   ============================================================ */
.single-wrap {
  max-width: calc(46rem + 15rem + 3rem);
  margin: 0 auto;
  padding: 2.6rem 1.6rem 4rem;
  display: grid;
  grid-template-columns: minmax(0, 46rem) 15rem;
  gap: 3rem;
  align-items: start;
}

/* 正文列 */
.post-crumb { font-size: 0.8rem; color: var(--ink-faint); margin-bottom: 1.1rem; }
.post-crumb a { color: var(--ink-faint); }
.post-crumb a:hover { color: var(--accent); }
.post-title-lg { font-size: 2rem; font-weight: 400; letter-spacing: 0.04em; margin-bottom: 0.9rem; line-height: 1.35; }
.post-meta { font-size: 0.8rem; color: var(--ink-faint); margin-bottom: 2rem; }
.post-meta .tag {
  display: inline-block;
  margin-left: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 0.7rem;
  font-size: 0.72rem;
  color: var(--accent);
}
.post-body {
  border-top: 1px solid var(--line);
  padding-top: 1.8rem;
  font-size: 1.02rem;
  color: var(--ink);
  max-width: 46rem;
  margin-left: auto;
  margin-right: auto;
}
.post-body p { margin-bottom: 1.3rem; }
.post-body h2 {
  font-size: 1.35rem;
  font-weight: 400;
  margin: 2.4rem 0 0.9rem;
  border-left: 3px solid var(--accent-soft);
  padding-left: 0.85rem;
  letter-spacing: 0.03em;
  scroll-margin-top: 3.5rem;
}
.post-body h3 {
  font-size: 1.14rem;
  font-weight: 400;
  margin: 1.8rem 0 0.7rem;
  scroll-margin-top: 3.5rem;
}
.post-body h4 { font-size: 1.05rem; font-weight: 400; margin: 1.5rem 0 0.6rem; scroll-margin-top: 3.5rem; }
.post-body strong { color: var(--ink); }
.post-body a { border-bottom: 1px solid var(--accent-soft); padding-bottom: 1px; }
.post-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.3rem 0 0.3rem 1.3rem;
  margin: 1.6rem 0;
  color: var(--ink-soft);
  font-style: italic;
}
.post-body ul, .post-body ol { margin: 1rem 0 1.2rem 1.5rem; }
.post-body li { margin-bottom: 0.35rem; }
.post-body code {
  font-family: "SF Mono", "Cascadia Code", Consolas, monospace;
  font-size: 0.85em;
  background: var(--bg-soft);
  padding: 0.12rem 0.35rem;
  border: 1px solid var(--line);
  border-radius: 2px;
}
.post-body pre {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.1rem;
  overflow-x: auto;
  margin: 1.4rem 0;
  font-size: 0.9em;
}
.post-body pre code { background: none; border: none; padding: 0; }
.post-body img { border: 1px solid var(--line-soft); border-radius: 3px; margin: 1.4rem 0; }
.post-body .table-wrap { overflow-x: auto; margin: 1.6rem 0; }
.post-body table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.post-body th, .post-body td { border: 1px solid var(--line); padding: 0.5rem 0.85rem; text-align: left; vertical-align: top; }
.post-body th { background: var(--bg-soft); font-weight: 400; }
.post-body mark { background: #f0e6c8; color: var(--ink); padding: 0 0.2em; border-radius: 2px; }
:root[data-theme="dark"] .post-body mark { background: #3a3423; color: #f0e6c8; }
.post-body iframe { max-width: 100%; }

/* 字号调节 */
.post-body.size-lg { font-size: 1.14rem; }
.post-body.size-sm { font-size: 0.92rem; }

/* 上一篇/下一篇 */
.post-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 3rem auto 0;
  border-top: 1px solid var(--line);
  padding-top: 1.4rem;
  font-size: 0.9rem;
  max-width: 46rem;
}
.post-pager .pager-next { text-align: right; }
.post-pager .pager-label { display: block; font-size: 0.72rem; color: var(--ink-faint); letter-spacing: 0.15em; margin-bottom: 0.25rem; }

/* 侧栏 */
.post-sidebar { position: sticky; top: 4.5rem; }
.side-block {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.1rem 1.2rem;
  margin-bottom: 1.2rem;
  background: var(--card);
}
.side-block .side-title {
  font-size: 0.78rem;
  color: var(--ink);
  letter-spacing: 0.2em;
  margin-bottom: 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line-soft);
  font-weight: 600;
}
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 0.25rem; }
.toc-list a {
  display: block;
  font-size: 0.85rem;
  color: var(--ink);
  line-height: 1.5;
  padding: 0.15rem 0.3rem;
  border-left: 2px solid transparent;
}
.toc-list a:hover { color: var(--accent-strong); border-left-color: var(--accent); background: var(--accent-soft); }
.toc-list a.toc-active {
  color: var(--ink);
  font-weight: 700;
  border-left-color: var(--accent);
  background: var(--accent-soft);
}
.toc-list .toc-h3 { padding-left: 1.1rem; font-size: 0.8rem; }
.toc-empty { font-size: 0.82rem; color: var(--ink-soft); }
.side-related { list-style: none; }
.side-related li { margin-bottom: 0.55rem; }
.side-related a { font-size: 0.85rem; color: var(--ink); line-height: 1.5; display: block; }
.side-related a:hover { color: var(--accent-strong); }
.side-cat { font-size: 0.85rem; color: var(--ink); }
.side-cat a { color: var(--accent-strong); font-weight: 600; }

/* 阅读工具条（固定右侧） */
.read-toolbar {
  position: fixed;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  z-index: 90;
}
.read-toolbar button {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--ink-soft);
  background: var(--card);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  box-shadow: 0 1px 4px rgb(0 0 0 / 0.12);
}
.read-toolbar button:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--bg);
}
.read-toolbar button[data-act="top"] { font-size: 0.9rem; }
.read-toolbar .size-label { font-size: 0.62rem; color: var(--ink-soft); text-align: center; line-height: 1; font-weight: 600; }

/* ============================================================
   归档 / 搜索 / 404
   ============================================================ */
.archive-page { padding: 2.8rem 0 4rem; }
.archive-title { font-size: 1.6rem; font-weight: 400; letter-spacing: 0.08em; margin-bottom: 0.5rem; }
.archive-title .mark { font-size: 0.95rem; color: var(--seal); margin-right: 0.6rem; }
.archive-sub { font-size: 0.85rem; color: var(--ink-faint); margin-bottom: 2rem; }

/* 分页 */
.pagination { margin-top: 2.2rem; text-align: center; font-size: 0.9rem; }
.pagination .page-numbers {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  margin: 0 0.2rem;
  color: var(--ink-soft);
}
.pagination .page-numbers.current { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.pagination .page-numbers:hover { border-color: var(--accent); color: var(--accent); }

/* 通用按钮 */
.comp-btn {
  display: inline-block;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.45rem 1.4rem;
  border-radius: 3px;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  transition: all 0.15s;
}
.comp-btn:hover { background: var(--accent); color: var(--bg); }

/* ============ 页脚 ============ */
.site-footer {
  padding: 2.4rem 0 3rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--ink-faint);
  text-align: center;
  line-height: 2.2;
}
.site-footer .footer-moon { display: block; font-size: 0.95rem; color: var(--seal); letter-spacing: 0.3em; margin-bottom: 0.4rem; }
.site-footer a { color: var(--ink-faint); }
.site-footer a:hover { color: var(--accent); }

/* ============ 响应式 ============ */
@media (max-width: 860px) {
  .single-wrap { grid-template-columns: 1fr; gap: 1.5rem; }
  .post-sidebar { position: static; order: 2; }
  .read-toolbar { top: auto; bottom: 1rem; transform: none; flex-direction: row; right: 1rem; }
}
@media (max-width: 640px) {
  .brand .site-title { font-size: 2rem; }
  .hero-post .hero-overlay { padding: 2rem 1.2rem 1.2rem; }
  .hero-post .hero-title { font-size: 1.2rem; }
  .post-list li { gap: 0.7rem; flex-wrap: wrap; }
  .post-list .post-date { margin-left: auto; }
  .theme-toggle { top: 0.7rem; right: 0.8rem; }
  .post-pager { grid-template-columns: 1fr; }
  .post-pager .pager-next { text-align: left; }
  .post-title-lg { font-size: 1.55rem; }
}