/* ==========================================================================
   kaylin小站 — 共享样式表
   设计基准：03-kernel-docs 模板（纸面浅色 + 墨蓝主色）
   扩展：暗色主题、全局搜索、移动端抽屉、文章排版、工具/友链/项目/OC 组件
   ========================================================================== */

/* ---------- 设计变量（浅色 = 模板原始配色） ---------- */
:root{
  --paper:#fcfcfa;
  --ink:#18212b;
  --deep:#18212b; /* 固定深色面：明暗主题下都保持深色（终端卡、名片卡） */
  --muted:#5e6873;
  --faint:#89939d;
  --line:#e0e5e8;
  --soft:#f3f6f7;
  --blue:#2264d2;
  --blue-soft:#eaf1ff;
  --code:#18212b;
  --card:#ffffff;
  --card2:#f5f7f8;
  --green:#2aa86a;
  --green-soft:#e2f2e8;
  --danger:#d64545;
  --danger-soft:#fdecec;
  --orange:#c07a1a;
  --orange-soft:#fdf3e3;
  --shadow:0 5px 18px rgba(24,33,43,.06);
  --topbar-bg:rgba(252,252,250,.96);
}

/* ---------- 暗色主题 ---------- */
[data-theme="dark"]{
  --paper:#12161c;
  --ink:#e6ebf0;
  --muted:#9aa5b0;
  --faint:#6e7883;
  --line:#272f38;
  --soft:#1a2029;
  --blue:#5b93e6;
  --blue-soft:#1b2c47;
  --code:#0e141a;
  --card:#181e26;
  --card2:#202833;
  --green:#3dbf82;
  --green-soft:#17352a;
  --danger:#e26d6d;
  --danger-soft:#3a2222;
  --orange:#e0a458;
  --orange-soft:#3a2e1c;
  --shadow:0 5px 18px rgba(0,0,0,.35);
  --topbar-bg:rgba(18,22,28,.96);
}

/* ---------- 基础 ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{background:var(--paper);color:var(--ink);
  font-family:'Manrope','Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;overflow-x:hidden;transition:background .25s,color .25s}
a{color:inherit;text-decoration:none}
::selection{background:var(--blue);color:#fff}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);
  padding:8px 16px;z-index:200;border-radius:0 0 6px 0}
.skip-link:focus{left:0}

kbd{font-family:'IBM Plex Mono','Cascadia Code',Consolas,monospace}

/* ==========================================================================
   顶栏
   ========================================================================== */
.topbar{position:sticky;top:0;z-index:60;height:67px;display:flex;align-items:center;gap:24px;
  padding:0 24px;background:var(--topbar-bg);border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);transition:background .25s}
.brand{display:flex;align-items:center;gap:9px;font-size:16px;letter-spacing:-.02em;white-space:nowrap}
.brand b{font-weight:700}
.brand-mark{width:28px;height:28px;border-radius:7px;background:var(--ink);color:var(--paper);
  display:grid;place-items:center;font-size:14px;font-weight:600;transition:.25s}

.topbar-search{display:flex;align-items:center;gap:8px;width:min(360px,32vw);
  background:var(--card2);border:1px solid var(--line);border-radius:7px;padding:8px 10px;margin-left:20px;
  cursor:pointer;transition:border-color .2s}
.topbar-search:hover{border-color:var(--faint)}
.topbar-search svg{width:15px;height:15px;fill:none;stroke:var(--faint);stroke-width:1.7;flex:none}
.topbar-search input{flex:1;border:0;outline:0;background:none;font-size:13px;color:var(--ink);cursor:pointer}
.topbar-search input::placeholder{color:var(--faint)}
.topbar-search kbd{font-size:9px;color:var(--faint);border:1px solid var(--line);
  background:var(--card);border-radius:3px;padding:2px 4px;white-space:nowrap}

.topnav{display:flex;align-items:center;gap:24px;margin-left:auto}
.topnav a{font-size:13px;color:var(--muted);white-space:nowrap;transition:color .2s}
.topnav a:hover{color:var(--ink)}
.topnav a.active{color:var(--blue);font-weight:600}
.topnav-cta{background:var(--ink)!important;color:var(--paper)!important;padding:9px 12px;
  border-radius:5px;font-size:12px!important;font-weight:600}
.topnav-cta span{margin-left:9px;color:#bfe0ff}

.icon-btn{width:36px;height:36px;border:1px solid var(--line);background:var(--card);
  border-radius:7px;display:grid;place-items:center;cursor:pointer;color:var(--muted);
  transition:border-color .2s,color .2s}
.icon-btn:hover{border-color:var(--faint);color:var(--ink)}
.icon-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7}
#themeToggle .moon{display:none}
[data-theme="dark"] #themeToggle .sun{display:none}
[data-theme="dark"] #themeToggle .moon{display:block}
#menuBtn{display:none}

/* ==========================================================================
   布局：侧栏 + 主内容 + 目录
   ========================================================================== */
.layout{max-width:1480px;margin:auto;display:grid;
  grid-template-columns:245px minmax(0,1fr) 205px;align-items:start}
.sidebar{position:sticky;top:67px;height:calc(100vh - 67px);border-right:1px solid var(--line);
  overflow-y:auto;padding:26px 17px 30px 24px}
.side-scroll{min-height:100%}
.side-group{margin-bottom:25px}
.side-group>span,.side-note>span{display:block;font-size:10px;letter-spacing:.09em;
  text-transform:uppercase;color:var(--faint);margin-bottom:9px;padding-left:8px}
.side-group a{display:block;font-size:13.5px;line-height:1.5;color:var(--muted);
  padding:6px 8px;border-radius:4px;border-left:2px solid transparent;transition:.2s}
.side-group a:hover{background:var(--soft);color:var(--ink)}
.side-group a.active{background:var(--blue-soft);color:var(--blue);font-weight:600;
  border-left-color:var(--blue)}
.side-note{margin-top:30px;border-top:1px solid var(--line);padding:15px 8px 0;font-size:12px;color:var(--faint)}
.side-note strong{font-family:'IBM Plex Mono','Cascadia Code',monospace;font-size:11px;
  color:var(--muted);font-weight:500}
.side-note a{display:block;color:var(--blue);margin-top:6px;font-size:11px}

main{min-width:0;padding:0 54px}

/* ---------- 目录列 ---------- */
.toc{position:sticky;top:67px;height:calc(100vh - 67px);padding:34px 22px;
  font-size:12px;border-left:1px solid var(--line);overflow-y:auto}
.toc>div>span{display:block;font-size:10px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--faint);margin-bottom:11px}
.toc>div>a{display:block;font-size:12.5px;line-height:1.5;color:var(--muted);
  padding:5px 0 5px 10px;border-left:1px solid var(--line)}
.toc>div>a:hover{color:var(--ink)}
.toc>div>a.active{color:var(--blue);border-left-color:var(--blue);font-weight:600}
.toc-help,.toc-contrib{border-top:1px solid var(--line);margin-top:24px;padding-top:14px}
.toc-help span,.toc-contrib span{display:block;font-size:10px;letter-spacing:.08em;
  color:var(--faint);margin-bottom:6px}
.toc-help p,.toc-contrib p{font-size:12px;line-height:1.65;color:var(--muted)}
.toc-help p a,.toc-contrib a{color:var(--blue)}
.toc-mail{display:block;margin-top:9px;font-size:11px}
.toc-contrib{margin-top:20px}

/* ==========================================================================
   Hero 区
   ========================================================================== */
.hero{display:grid;grid-template-columns:1fr 315px;gap:50px;padding:56px 0 48px;
  border-bottom:1px solid var(--line);align-items:start}
.eyebrow,.kicker{font-family:'IBM Plex Mono','Cascadia Code',monospace;font-size:10px;
  letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}
.eyebrow{margin-bottom:14px}
h1{font-size:clamp(34px,4.2vw,54px);line-height:1.13;letter-spacing:-.04em;font-weight:700;margin-bottom:18px}
.lede{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:600px}
.hero-actions{display:flex;align-items:center;gap:20px;margin-top:26px;flex-wrap:wrap}
.primary{display:inline-flex;align-items:center;gap:28px;background:var(--blue);color:#fff;
  padding:11px 15px;border-radius:5px;font-size:13px;font-weight:600;transition:.2s}
.primary:hover{background:#164fae}
.primary span{font-size:16px}
.secondary{font-size:13px;color:var(--muted);border-bottom:1px solid var(--faint);padding-bottom:3px}
.secondary:hover{color:var(--ink)}
.hero-meta{display:flex;gap:19px;flex-wrap:wrap;margin-top:26px;font-size:12px;color:var(--faint)}
.hero-meta span{display:flex;align-items:center;gap:6px}
.hero-meta i{width:5px;height:5px;border-radius:50%;background:var(--green);display:block}

.quick-card{background:var(--deep);color:#f4f6f5;border-radius:9px;padding:19px;
  box-shadow:0 8px 24px rgba(24,33,43,.09);transition:background .25s,color .25s}
.quick-label{font-family:'IBM Plex Mono','Cascadia Code',monospace;font-size:9px;
  letter-spacing:.08em;color:#9ec3f3}
.quick-card h2{font-size:16px;line-height:1.45;margin:7px 0 12px;font-weight:600}
.quick-card pre{background:#0e141a;border:1px solid #2e3a44;border-radius:5px;padding:11px 12px;
  overflow-x:auto;font-family:'IBM Plex Mono','Cascadia Code',monospace;font-size:11px;
  line-height:1.85;color:#dfe7e5}
.quick-card code span{color:#79c0ff}
.quick-card p{font-size:12.5px;line-height:1.7;color:#aab7bf;margin:11px 0 14px}
.quick-card>a{font-size:12px;color:#a9ceff}
.quick-card>a span{margin-left:6px}

.quick-links{margin-top:12px;display:flex;flex-direction:column}
.quick-links a{display:grid;grid-template-columns:1fr auto 14px;gap:8px;padding:10px 11px;
  border:1px solid var(--line);border-top:0;background:var(--card);font-size:12px;transition:background .2s}
.quick-links a:first-child{border-top:1px solid var(--line);border-radius:7px 7px 0 0}
.quick-links a:last-child{border-radius:0 0 7px 7px}
.quick-links a:hover{background:var(--soft)}
.quick-links em{font-style:normal;color:var(--faint);font-size:11px}
.quick-links i{font-style:normal;color:var(--blue)}

/* ==========================================================================
   区块与卡片
   ========================================================================== */
.section-head{display:flex;justify-content:space-between;align-items:end;
  border-bottom:1px solid var(--line);padding-bottom:13px;margin:39px 0 19px}
.section-head h2{font-size:23px;line-height:1.3;letter-spacing:-.025em;font-weight:600;margin-top:7px}
.section-head>a{font-size:12px;color:var(--muted)}
.section-head>a span{color:var(--blue);margin-left:5px}

.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.path-card{display:flex;gap:13px;border:1px solid var(--line);background:var(--card);
  border-radius:7px;padding:16px;transition:.2s}
.path-card:hover{border-color:#9bb9e8;box-shadow:var(--shadow);transform:translateY(-1px)}
.path-icon{font-family:'IBM Plex Mono','Cascadia Code',monospace;font-size:10px;color:var(--blue);
  border:1px solid #c6d9f7;background:var(--blue-soft);border-radius:50%;width:27px;height:27px;
  display:grid;place-items:center;flex:none}
.path-tag{display:block;font-size:10px;color:var(--faint);margin-bottom:4px}
.path-card h3{font-size:16px;line-height:1.4;margin-bottom:5px;font-weight:600}
.path-card p{font-size:13px;line-height:1.65;color:var(--muted);margin-bottom:12px}
.path-time{font-size:11px;color:var(--faint)}
.path-time b{color:var(--blue);margin-left:5px}

.doc-list{border-top:1px solid var(--line)}
.doc{padding:17px 0 18px;border-bottom:1px solid var(--line);display:block;transition:background .2s}
.doc:hover{background:var(--soft)}
.doc-head{display:flex;gap:12px;align-items:center;font-size:11px;color:var(--faint)}
.doc-tag{color:var(--blue);font-weight:600}
.doc h3{font-size:19px;line-height:1.45;letter-spacing:-.015em;margin:6px 0 5px;font-weight:600}
.doc h3 a:hover{color:var(--blue)}
.doc p{font-size:14px;line-height:1.75;color:var(--muted);max-width:680px}
.doc-foot{display:flex;gap:8px;align-items:center;margin-top:9px;font-size:11px;color:var(--faint)}
.doc-arrow{margin-left:auto;color:var(--blue);font-size:15px}

.callout{display:flex;gap:18px;align-items:center;background:var(--soft);
  border:1px solid var(--line);border-radius:8px;padding:20px;margin:36px 0 55px}
.callout-icon{width:40px;height:40px;border-radius:50%;background:var(--green-soft);
  color:var(--green);display:grid;place-items:center;font-family:Georgia,serif;font-size:20px;flex:none}
.callout h2{font-size:17px;font-weight:600;margin-bottom:4px}
.callout p{font-size:13px;line-height:1.7;color:var(--muted);max-width:520px}
.callout a{font-size:12px;color:var(--blue);display:inline-block;margin-top:6px}
.callout a span{margin-left:5px}
.callout-stats{margin-left:auto;text-align:right;flex:none;padding-left:20px;border-left:1px solid var(--line)}
.callout-stats span{display:block;font-size:10px;color:var(--faint)}
.callout-stats strong{display:block;font-size:30px;line-height:1.2;color:var(--green)}

/* ---------- 筛选 chips ---------- */
.chip-row{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 19px}
.chip{border:1px solid var(--line);background:var(--card);color:var(--muted);font-size:12px;
  padding:6px 14px;border-radius:20px;cursor:pointer;transition:.2s;font-family:inherit}
.chip:hover{border-color:var(--faint)}
.chip.active{background:var(--ink);color:var(--paper);border-color:var(--ink);font-weight:600}

/* ---------- 友链 / 项目 / 通用数据卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.gcard{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:18px;
  transition:.2s;display:flex;flex-direction:column;gap:8px}
a.gcard:hover{border-color:#9bb9e8;box-shadow:var(--shadow);transform:translateY(-1px)}
.gcard .ghead{display:flex;align-items:center;gap:12px}
.gcard .gava{width:48px;height:48px;border-radius:50%;object-fit:cover;flex:none;
  border:2px solid var(--line)}
.gcard .gava-fallback{width:48px;height:48px;border-radius:50%;flex:none;display:grid;
  place-items:center;background:var(--soft);border:2px solid var(--line);font-size:20px}
.gcard h3{font-size:16px;font-weight:600}
.gcard .gmeta{font-size:11px;color:var(--faint)}
.gcard .gdesc{font-size:13px;line-height:1.7;color:var(--muted);flex:1}
.gcard .ggo{font-size:12px;font-weight:600;color:var(--blue)}
.gcard .ggo:hover{text-decoration:underline}

/* 状态徽章 */
.status-badge{display:inline-flex;align-items:center;align-self:flex-start;
  padding:3px 12px;border-radius:12px;font-size:11px;font-weight:600;letter-spacing:.06em}
.status-badge.completed{background:var(--green);color:#fff}
.status-badge.in-progress{background:var(--blue);color:#fff}
.status-badge.planned{background:var(--orange);color:#fff}
.status-badge.paused{background:var(--faint);color:#fff}

/* 进度条 */
.progress-info{display:flex;justify-content:space-between;font-size:12px;color:var(--faint);
  margin:12px 0 6px}
.progress-info b{color:var(--ink)}
.progress-track{background:var(--card2);border-radius:20px;height:8px;overflow:hidden}
.progress-fill{width:0;height:100%;border-radius:20px;
  background:linear-gradient(90deg,var(--blue),#6aa5f0);
  transition:width 1s cubic-bezier(.22,.61,.36,1) .35s}

/* ==========================================================================
   关于我
   ========================================================================== */
.about-hero{display:grid;grid-template-columns:300px 1fr;gap:30px;padding:56px 0 48px;
  border-bottom:1px solid var(--line);align-items:center}
.profile-card{background:var(--deep);color:#f4f6f5;border-radius:9px;padding:26px;text-align:center;
  box-shadow:0 8px 24px rgba(24,33,43,.09)}
.profile-card img{width:96px;height:96px;border-radius:50%;object-fit:cover;
  border:3px solid rgba(255,255,255,.7);display:block;margin:0 auto 14px}
.profile-card .pname{font-size:20px;font-weight:700}
.profile-card .prole{font-size:13px;color:#aab7bf;margin-top:5px}
.skill-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.skill{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:14px;transition:.2s}
.skill:hover{border-color:#9bb9e8;box-shadow:var(--shadow)}
.skill .semoji{font-size:20px}
.skill h4{font-size:14px;margin:6px 0 3px;font-weight:600}
.skill p{font-size:12px;color:var(--faint)}

.contact-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.contact-card{display:flex;align-items:center;gap:14px;border:1px solid var(--line);
  background:var(--card);border-radius:8px;padding:16px;transition:.2s}
.contact-card:hover{border-color:#9bb9e8;box-shadow:var(--shadow);transform:translateY(-1px)}
.contact-card .cemoji{font-size:24px}
.contact-card h4{font-size:14px;font-weight:600}
.contact-card p{font-size:12px;color:var(--faint);margin-top:2px;overflow-wrap:anywhere}

/* ==========================================================================
   文章排版（正文）
   ========================================================================== */
.article-head{padding:48px 0 26px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:clamp(30px,3.6vw,44px)}
.article-meta{display:flex;gap:16px;flex-wrap:wrap;margin-top:14px;font-size:12px;color:var(--faint)}
.article-meta .doc-tag{font-size:12px}
.prose{padding:30px 0 40px;max-width:760px}
.prose>p{font-size:15.5px;line-height:1.95;color:var(--ink);margin-bottom:1.15em}
.prose h2{font-size:22px;font-weight:700;margin:1.8em 0 .7em;letter-spacing:-.02em;
  padding-bottom:.4em;border-bottom:1px solid var(--line);scroll-margin-top:90px}
.prose h3{font-size:17px;font-weight:600;color:var(--blue);margin:1.5em 0 .55em;scroll-margin-top:90px}
.prose ul,.prose ol{margin:0 0 1.15em 1.6em;font-size:15.5px;line-height:1.9;color:var(--ink)}
.prose li{margin-bottom:.4em}
.prose blockquote{border-left:3px solid var(--blue);background:var(--blue-soft);
  padding:14px 18px;border-radius:0 8px 8px 0;margin-bottom:1.3em}
.prose blockquote p{margin:0;color:var(--muted);font-style:italic}
.prose hr{border:none;height:1px;background:var(--line);margin:2em 0}
.prose code{font-family:'IBM Plex Mono','Cascadia Code',Consolas,monospace;font-size:.88em;
  background:var(--card2);border:1px solid var(--line);padding:2px 7px;border-radius:5px;color:var(--blue)}
.prose pre{position:relative;background:var(--code);border-radius:8px;padding:18px 20px;
  overflow-x:auto;margin-bottom:1.3em}
.prose pre code{background:none;border:none;padding:0;color:#dfe7e5;font-size:13px;line-height:1.8}
.copy-btn{position:absolute;top:8px;right:8px;background:rgba(255,255,255,.08);border:none;
  color:#aab7bf;font-size:11px;padding:4px 10px;border-radius:5px;cursor:pointer;opacity:0;
  transition:opacity .2s,background .2s;font-family:inherit}
.prose pre:hover .copy-btn{opacity:1}
.copy-btn:hover{background:rgba(255,255,255,.18);color:#fff}

.tag-row{display:flex;gap:8px;flex-wrap:wrap;padding:18px 0;border-top:1px solid var(--line)}
.tag{border:1px solid var(--line);background:var(--card2);color:var(--blue);font-size:12px;
  padding:5px 14px;border-radius:14px;transition:.2s}
.tag:hover{border-color:var(--blue)}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0 55px}
.pager a{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:14px 16px;
  transition:.2s;display:block}
.pager a:hover{border-color:#9bb9e8;box-shadow:var(--shadow)}
.pager .pl{font-size:10px;letter-spacing:.09em;text-transform:uppercase;color:var(--faint)}
.pager .pt2{font-size:14px;font-weight:600;margin-top:4px}
.pager .next{text-align:right}
.pager .disabled{opacity:.45;pointer-events:none}

/* ---------- 阅读进度条 ---------- */
.read-progress{position:fixed;top:67px;left:0;height:2px;background:var(--blue);width:0;
  z-index:70;transition:width .1s linear}

/* ==========================================================================
   OC 设定集
   ========================================================================== */
.oc-layout{display:grid;grid-template-columns:260px 1fr;gap:22px;margin:36px 0 55px;align-items:start}
.oc-list-panel{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:14px;
  position:sticky;top:87px}
.oc-list-panel h3{font-size:14px;padding-bottom:10px;margin-bottom:10px;
  border-bottom:1px solid var(--line)}
.oc-item{display:flex;align-items:center;gap:10px;padding:9px 10px;margin-bottom:6px;
  border-radius:7px;cursor:pointer;border:1px solid transparent;transition:.2s}
.oc-item:hover{background:var(--soft)}
.oc-item.active{background:var(--blue-soft);border-color:var(--blue)}
.oc-item.active .oc-name{color:var(--blue);font-weight:600}
.oc-ava{width:38px;height:38px;border-radius:50%;overflow:hidden;flex:none;
  background:var(--card2);display:grid;place-items:center;font-size:17px;border:1px solid var(--line)}
.oc-ava img{width:100%;height:100%;object-fit:cover}
.oc-name{font-size:13px;min-width:0;overflow-wrap:anywhere}
.oc-detail{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:26px}
.detail-header{display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.detail-ava{width:88px;height:88px;border-radius:50%;overflow:hidden;flex:none;
  background:var(--card2);display:grid;place-items:center;font-size:36px;border:3px solid var(--line)}
.detail-ava img{width:100%;height:100%;object-fit:cover}
.detail-name h2{font-size:24px;letter-spacing:-.02em;margin:0}
.detail-name .dtitle{color:var(--faint);font-size:13px;margin-top:4px}
.info-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;margin-top:10px}
.info-item{background:var(--card2);border:1px solid var(--line);border-radius:7px;padding:11px 13px}
.info-item .ilab{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint)}
.info-item .ival{font-size:15px;font-weight:600;margin-top:4px;overflow-wrap:anywhere}
.sec-lab{margin-top:20px}
.sec-box{background:var(--card2);border:1px solid var(--line);border-radius:7px;
  padding:14px 16px;color:var(--muted);font-size:14px;line-height:1.85;margin-top:8px}
.images-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-top:10px}
.image-card{border:1px solid var(--line);border-radius:8px;overflow:hidden;cursor:pointer;
  transition:.2s;background:var(--card2)}
.image-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.image-card img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block}
.image-caption{padding:8px 12px;font-size:12px;color:var(--faint);text-align:center;
  border-top:1px solid var(--line)}
.empty-tip{color:var(--faint);text-align:center;padding:30px;font-style:italic}

/* ---------- Lightbox ---------- */
.lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:1000;
  justify-content:center;align-items:center;flex-direction:column}
.lightbox.active{display:flex}
.lightbox-img{max-width:90%;max-height:80%;object-fit:contain;border-radius:8px}
.lightbox-caption{color:#fff;margin-top:16px;font-size:14px}
.lightbox-close{position:absolute;top:14px;right:34px;color:#fff;font-size:40px;cursor:pointer}
.lightbox-close:hover{color:#ff6b6b}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:44px;
  cursor:pointer;padding:20px;user-select:none}
.lightbox-nav:hover{color:#9ec3f3}
.lightbox-prev{left:12px}
.lightbox-next{right:12px}

/* ==========================================================================
   工具页通用
   ========================================================================== */
.tool-panel{border:1px solid var(--line);background:var(--card);border-radius:8px;
  padding:22px;margin:0 0 20px}
.tool-panel>h2{font-size:17px;font-weight:600;margin-bottom:14px}
.add-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.add-row input[type="text"]{flex:3;min-width:200px;padding:11px 14px;background:var(--card2);
  border:1px solid var(--line);border-radius:7px;color:var(--ink);font-size:14px;outline:none;
  transition:border-color .2s;font-family:inherit}
.add-row input[type="text"]:focus{border-color:var(--blue)}
.add-row select{padding:11px 12px;background:var(--card2);border:1px solid var(--line);
  border-radius:7px;color:var(--ink);cursor:pointer;font-family:inherit}
.btn{padding:11px 22px;border:none;border-radius:7px;background:var(--blue);color:#fff;
  font-weight:600;font-size:13px;cursor:pointer;transition:.2s;font-family:inherit}
.btn:hover{background:#164fae}
.btn-ghost2{padding:10px 18px;border:1px solid var(--line);background:var(--card2);
  color:var(--ink);font-size:13px;font-weight:600;cursor:pointer;border-radius:7px;
  transition:.2s;font-family:inherit}
.btn-ghost2:hover{border-color:var(--faint)}
.hint{font-size:12px;color:var(--faint);align-self:center}

.task-grid{display:grid;grid-template-columns:1fr;gap:10px;margin:0 0 16px}
.task{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:13px 16px;
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;transition:.2s;min-width:0;
  overflow-wrap:anywhere;animation:slideIn .3s ease both}
.task:hover{border-color:var(--faint)}
.task.high{border:2px solid var(--danger);animation:pulseRed 1.4s ease-in-out infinite}
@keyframes pulseRed{0%,100%{box-shadow:0 0 0 0 rgba(214,69,69,.25)}50%{box-shadow:0 0 0 5px rgba(214,69,69,.08)}}
.task input[type="checkbox"]{width:19px;height:19px;accent-color:var(--green);cursor:pointer;flex-shrink:0}
.task .txt{flex:1;min-width:160px;font-size:14.5px;font-weight:500;word-break:break-word;cursor:text}
.task .txt.done{color:var(--green);text-decoration:line-through;opacity:.75;font-weight:400}
.task .txt-edit{flex:1;min-width:160px;padding:6px 10px;background:var(--card2);
  border:1px solid var(--blue);border-radius:6px;color:var(--ink);font-size:14px;outline:none;
  font-family:inherit}
.task select{padding:6px 10px;border-radius:6px;border:1px solid var(--line);
  background:var(--card2);color:var(--ink);font-size:12px;cursor:pointer;font-family:inherit}
.task .del{width:32px;height:32px;border-radius:7px;border:1px solid var(--line);cursor:pointer;
  background:var(--card2);transition:.2s;font-size:14px}
.task .del:hover{border-color:var(--danger);color:var(--danger)}

/* 倒计时数字 */
.time-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 0 20px}
.time-cell{border:1px solid var(--line);background:var(--card);border-radius:8px;
  padding:20px 10px;text-align:center}
.time-num{font-family:'IBM Plex Mono','Cascadia Code',monospace;font-size:clamp(30px,4vw,44px);
  font-weight:600;letter-spacing:-.02em;line-height:1.1}
.time-num.tick{animation:tickFlip .3s ease}
@keyframes tickFlip{from{opacity:.3;transform:translateY(-6px)}to{opacity:1;transform:none}}
.time-unit{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-top:6px}

.quick-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.quick-btn{padding:8px 14px;border:1px solid var(--line);background:var(--card2);
  color:var(--muted);font-size:12px;border-radius:20px;cursor:pointer;transition:.2s;font-family:inherit}
.quick-btn:hover{border-color:var(--blue);color:var(--blue)}
.status-msg{margin-top:12px;font-size:13px;min-height:20px}
.status-msg.ok{color:var(--green)}
.status-msg.warn{color:var(--orange)}

/* 报时台 */
.clock-display{font-family:'IBM Plex Mono','Cascadia Code',monospace;font-size:clamp(38px,6vw,64px);
  font-weight:600;letter-spacing:.02em;line-height:1;text-align:center;padding:34px 10px;
  border:1px solid var(--line);background:var(--card);border-radius:8px;margin-bottom:20px}
.date-info{text-align:center;font-size:14px;color:var(--muted);margin-top:12px;font-family:inherit;letter-spacing:0}
.sync-badge{display:inline-block;padding:4px 14px;border-radius:20px;font-size:12px;font-weight:600}
.sync-badge.syncing{background:var(--orange-soft);color:var(--orange)}
.sync-badge.success{background:var(--green-soft);color:var(--green)}
.sync-badge.error{background:var(--danger-soft);color:var(--danger)}
.toggle-row{display:flex;align-items:center;gap:10px;padding:4px 0}
.toggle-row input[type="checkbox"]{width:19px;height:19px;accent-color:var(--blue);cursor:pointer}
.toggle-row span{font-size:14px}

/* ==========================================================================
   页脚
   ========================================================================== */
.footer{border-top:1px solid var(--line);padding:36px 24px 22px;background:var(--soft)}
.footer-inner{max-width:1300px;margin:auto;display:grid;grid-template-columns:1fr auto;gap:35px}
.footer-brand{font-size:15px}
.footer>div>div>p{font-size:12px;color:var(--faint);margin-top:9px}
.footer-cols{display:flex;gap:55px}
.footer-cols>div{display:flex;flex-direction:column;gap:6px}
.footer-cols span{font-size:10px;color:var(--faint);margin-bottom:2px}
.footer-cols a{font-size:12.5px;color:var(--muted)}
.footer-cols a:hover{color:var(--blue)}
.footer-bottom{grid-column:1/-1;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:13px;font-size:10.5px;color:var(--faint)}

/* ==========================================================================
   全局搜索弹层
   ========================================================================== */
.search-overlay{display:none;position:fixed;inset:0;background:rgba(15,20,26,.5);
  backdrop-filter:blur(3px);z-index:200;padding:12vh 16px 16px;justify-content:flex-start;
  align-items:flex-start}
.search-overlay.open{display:flex}
.search-modal{background:var(--card);border:1px solid var(--line);border-radius:12px;
  max-width:600px;width:100%;margin:0 auto;overflow:hidden;
  box-shadow:0 24px 64px rgba(0,0,0,.25)}
.search-input-row{display:flex;align-items:center;gap:10px;padding:14px 16px;
  border-bottom:1px solid var(--line)}
.search-input-row svg{width:17px;height:17px;fill:none;stroke:var(--faint);stroke-width:1.7;flex:none}
.search-input-row input{flex:1;border:0;outline:0;background:none;font-size:15px;color:var(--ink);
  font-family:inherit}
.search-results{max-height:52vh;overflow-y:auto;padding:8px}
.search-hint{padding:24px;text-align:center;color:var(--faint);font-size:13px}
.sresult{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:7px;cursor:pointer}
.sresult:hover,.sresult.sel{background:var(--soft)}
.sresult .stype{flex:none;font-size:10px;letter-spacing:.06em;padding:3px 8px;border-radius:4px;
  background:var(--blue-soft);color:var(--blue);font-weight:600}
.sresult h4{font-size:14px;font-weight:600}
.sresult p{font-size:12px;color:var(--faint);margin-top:2px}
.sresult mark{background:none;color:var(--blue);font-weight:700}
.search-foot{display:flex;justify-content:space-between;padding:9px 16px;border-top:1px solid var(--line);
  font-size:11px;color:var(--faint)}

/* ==========================================================================
   移动端抽屉 / 返回顶部 / 杂项
   ========================================================================== */
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(15,20,26,.45);z-index:90}
.drawer-mask.open{display:block}
body.drawer-open{overflow:hidden}
body.drawer-open .sidebar{transform:translateX(0)}

.back-top{position:fixed;right:22px;bottom:22px;width:40px;height:40px;border-radius:8px;
  background:var(--ink);color:var(--paper);border:none;cursor:pointer;z-index:80;
  display:grid;place-items:center;opacity:0;pointer-events:none;transition:.25s;
  box-shadow:0 6px 18px rgba(0,0,0,.2)}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{transform:translateY(-2px)}
.back-top svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2}

/* ---------- 入场动画 ---------- */
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes slideIn{from{opacity:0;transform:translateX(-12px)}to{opacity:1;transform:none}}
.rise{animation:rise .55s cubic-bezier(.22,.61,.36,1) both}
.rise-1{animation-delay:.07s}.rise-2{animation-delay:.14s}.rise-3{animation-delay:.21s}
.rise-4{animation-delay:.28s}.rise-5{animation-delay:.35s}.rise-6{animation-delay:.42s}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media(max-width:1200px){
  .layout{grid-template-columns:230px minmax(0,1fr)}
  .toc{display:none}
  main{padding-right:38px}
}
@media(max-width:900px){
  .topbar-search{width:220px}
  .topnav a:not(.topnav-cta){display:none}
  .layout{grid-template-columns:1fr}
  .sidebar{position:fixed;top:0;left:0;height:100vh;width:270px;z-index:95;
    background:var(--paper);transform:translateX(-100%);transition:transform .25s;
    box-shadow:0 0 40px rgba(0,0,0,.18)}
  #menuBtn{display:grid}
  main{padding:0 28px}
  .hero{grid-template-columns:1fr;gap:30px;padding-top:40px}
  .hero-aside{max-width:540px}
  .path-grid{grid-template-columns:1fr}
  .about-hero{grid-template-columns:1fr}
  .oc-layout{grid-template-columns:1fr}
  .oc-list-panel{position:static}
  .time-grid{grid-template-columns:repeat(2,1fr)}
  .pager{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:24px}
}
@media(max-width:650px){
  .topbar{height:60px;padding:0 16px;gap:10px}
  .brand{font-size:15px}
  .topbar-search{display:none}
  main{padding:0 16px}
  .hero{padding:32px 0 33px;gap:25px}
  h1{font-size:34px;line-height:1.18}
  .lede{font-size:15.5px}
  .hero-actions{gap:16px}
  .hero-meta{gap:12px;font-size:11px}
  .section-head h2{font-size:21px}
  .section-head>a{display:none}
  .callout{align-items:flex-start;padding:16px;gap:12px}
  .callout-stats{display:none}
  .footer{padding:28px 16px 18px}
  .footer-cols{gap:35px;flex-wrap:wrap}
  .footer-bottom{flex-direction:column;gap:6px}
  .prose pre{padding:14px}
}

/* ==========================================================================
   管理后台
   ========================================================================== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
.field label{display:block;font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.field input[type="text"],.field input[type="date"],.field textarea,.field select{
  width:100%;padding:10px 12px;background:var(--card2);border:1px solid var(--line);
  border-radius:7px;color:var(--ink);font-size:13.5px;outline:none;font-family:inherit;transition:border-color .2s}
.field textarea{min-height:90px;resize:vertical;line-height:1.7}
.field textarea.code{font-family:'IBM Plex Mono','Cascadia Code',monospace;font-size:12.5px}
.field input:focus,.field textarea:focus{border-color:var(--blue)}
.admin-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0 18px}
.admin-tab{border:1px solid var(--line);background:var(--card);color:var(--muted);
  font-size:13px;font-weight:600;padding:8px 18px;border-radius:7px;cursor:pointer;transition:.2s;font-family:inherit}
.admin-tab:hover{border-color:var(--faint)}
.admin-tab.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.tab-pane{display:none}
.tab-pane.active{display:block;animation:rise .4s cubic-bezier(.22,.61,.36,1) both}
.admin-list{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.admin-item{display:flex;align-items:center;gap:12px;border:1px solid var(--line);
  background:var(--card);border-radius:7px;padding:11px 14px;font-size:13.5px;flex-wrap:wrap}
.admin-item .ai-title{font-weight:600;flex:1;min-width:150px}
.admin-item .ai-meta{font-size:11.5px;color:var(--faint)}
.admin-item .mini-btn{border:1px solid var(--line);background:var(--card2);color:var(--muted);
  font-size:12px;padding:5px 12px;border-radius:6px;cursor:pointer;font-family:inherit;transition:.2s}
.admin-item .mini-btn:hover{border-color:var(--blue);color:var(--blue)}
.admin-item .mini-btn.danger:hover{border-color:var(--danger);color:var(--danger)}
.pub-badge{font-size:10px;font-weight:700;letter-spacing:.06em;padding:3px 9px;border-radius:12px}
.pub-badge.on{background:var(--green-soft);color:var(--green)}
.pub-badge.off{background:var(--orange-soft);color:var(--orange)}
.side-group-editor{border:1px solid var(--line);background:var(--card);border-radius:8px;
  padding:16px;margin-bottom:14px}
.side-group-editor .sg-head{display:flex;gap:12px;align-items:center;margin-bottom:12px}
.side-group-editor .sg-head input{flex:1;max-width:220px;padding:9px 12px;background:var(--card2);
  border:1px solid var(--line);border-radius:7px;color:var(--ink);font-size:13.5px;font-family:inherit;outline:none}
.sg-link-row{display:flex;gap:10px;margin-bottom:8px;align-items:center}
.sg-link-row input{flex:1;padding:8px 11px;background:var(--card2);border:1px solid var(--line);
  border-radius:6px;color:var(--ink);font-size:13px;font-family:inherit;outline:none}
.sg-link-row .del-link{width:32px;height:32px;flex:none;border:1px solid var(--line);border-radius:6px;
  background:var(--card2);cursor:pointer;color:var(--faint)}
.sg-link-row .del-link:hover{color:var(--danger);border-color:var(--danger)}
.admin-note{font-size:12px;color:var(--faint);line-height:1.7;margin-top:14px}
#token-gate{max-width:420px;margin:60px auto;text-align:center}
#token-gate input{width:100%;padding:12px 14px;background:var(--card2);border:1px solid var(--line);
  border-radius:7px;color:var(--ink);font-size:14px;outline:none;text-align:center;margin-bottom:12px;font-family:inherit}
#token-gate input:focus{border-color:var(--blue)}
.admin-toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);
  color:var(--paper);border-radius:40px;padding:9px 22px;font-size:13px;z-index:1000;
  box-shadow:0 12px 28px rgba(0,0,0,.35)}
@media(max-width:900px){.form-grid{grid-template-columns:1fr}}

/* ---------- 静态预览模式提示条 ---------- */
.api-banner{position:fixed;left:50%;transform:translateX(-50%);bottom:70px;z-index:150;
  background:var(--orange-soft);color:var(--orange);border:1px solid var(--orange);
  padding:9px 18px;border-radius:8px;font-size:12.5px;max-width:min(92vw,560px);
  text-align:center;box-shadow:0 6px 18px rgba(0,0,0,.12);line-height:1.6}
.api-banner code{background:rgba(0,0,0,.08);padding:1px 6px;border-radius:4px;font-size:11.5px}