:root{
  --bg:#F4F7FF; --surface:#FFFFFF; --ink:#0B1230; --muted:#59627F; --line:#E0E6F5;
  --accent:#2457FF; --accent2:#00B8FF; --accent3:#7B5CFF; --soft:#E9EEFF;
  --radius-lg:20px; --radius-sm:12px; --shadow:0 24px 60px -30px rgba(36,87,255,.35);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){--bg:#070B1E;--surface:#0F1636;--ink:#EAF0FF;--muted:#93A0C4;--line:#1F2950;--accent:#6C8CFF;--accent2:#33CFFF;--accent3:#9B83FF;--soft:#18214A;--shadow:0 24px 60px -30px rgba(0,0,0,.7)}
}
:root[data-theme="dark"]{--bg:#070B1E;--surface:#0F1636;--ink:#EAF0FF;--muted:#93A0C4;--line:#1F2950;--accent:#6C8CFF;--accent2:#33CFFF;--accent3:#9B83FF;--soft:#18214A;--shadow:0 24px 60px -30px rgba(0,0,0,.7)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{background:var(--bg);color:var(--ink);font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px;padding-top:56px;padding-bottom:80px}
.narrow h1{font-size:34px;font-weight:900;margin-bottom:20px}
.narrow h2{font-size:22px;margin:28px 0 10px}
.lead{color:var(--muted)}
.empty{color:var(--muted);padding:32px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 22px;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid var(--ink);font-size:15px;cursor:pointer;background:none;color:var(--ink)}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent3));border-color:transparent;color:#fff}
.btn.wide{width:100%}

/* header */
body>header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:18px;text-decoration:none}
.logo .mark{width:30px;height:30px}
.links{display:flex;gap:22px;align-items:center}
.links>a:not(.btn){text-decoration:none;color:var(--muted);font-size:15px}
.links>a:not(.btn):hover,.links>a.cur{color:var(--ink)}
.links>a.cur{font-weight:700}
.links .btn{color:#fff;padding:8px 18px}
.search input{width:150px;font:inherit;font-size:14px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 14px}
.search input:focus{outline:none;border-color:var(--accent)}
.theme-btn{background:none;border:1px solid var(--line);color:var(--muted);border-radius:999px;width:34px;height:34px;font-size:16px;cursor:pointer}
.theme-btn:hover{color:var(--ink);border-color:var(--ink)}
.menu-btn{display:none;background:none;border:0;color:var(--ink);font-size:15px;font-weight:700;cursor:pointer}
@media (max-width:900px){
  .menu-btn{display:block}
  .links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--surface);flex-direction:column;align-items:flex-start;padding:18px 24px 24px;gap:14px;border-bottom:1px solid var(--line)}
  .links.open{display:flex}
  .search input{width:100%}
}

/* 布局 */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;padding-top:36px;padding-bottom:72px;align-items:start}
@media (max-width:960px){.layout{grid-template-columns:minmax(0,1fr)}}
.main{min-width:0}
.hello{margin-bottom:22px}
.hello h1{font-size:clamp(28px,4vw,38px);font-weight:900}
.hello p{color:var(--muted)}

/* 文章卡片 */
.p-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px 26px;margin-bottom:16px;transition:transform .2s,box-shadow .2s}
.p-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.p-card.has-thumb{display:grid;grid-template-columns:232px minmax(0,1fr);gap:22px;align-items:center}
.thumb{display:block;border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:1200/630;background:var(--soft)}
.thumb img{display:block;width:100%;height:100%;object-fit:cover}
.post-cover{display:block;width:100%;height:auto;aspect-ratio:1200/630;border-radius:var(--radius-sm);margin:0 0 24px}
@media (max-width:640px){.p-card.has-thumb{grid-template-columns:minmax(0,1fr);gap:14px}}
.p-card h2{font-size:21px;line-height:1.4;margin-bottom:8px}
.p-card h2 a{text-decoration:none}
.p-card h2 a:hover{color:var(--accent)}
.pin{display:inline-block;font-size:12px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent3));padding:1px 9px;border-radius:999px;margin-right:8px;vertical-align:2px}
.sum{color:var(--muted);font-size:15px}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;margin-top:14px;font-size:13px;color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;text-decoration:none;color:var(--accent);background:var(--soft);padding:2px 10px;border-radius:999px}
.tag:hover{background:var(--accent);color:#fff}
.tag i{font-style:normal;font-size:11px;opacity:.7}
.tag.big{font-size:15px;padding:5px 14px}
.cloud{display:flex;flex-wrap:wrap;gap:8px}
.pager{display:flex;justify-content:space-between;align-items:center;margin-top:24px;color:var(--muted);font-size:14px}
.pager a{text-decoration:none;color:var(--accent);font-weight:700}

/* 侧边栏 */
.side{display:grid;gap:16px;position:sticky;top:88px}
@media (max-width:960px){.side{position:static}}
.s-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px 22px}
.s-card h3{font-size:15px;margin-bottom:10px}
.s-card p{font-size:14px;color:var(--muted)}
.s-card a{color:var(--accent);text-decoration:none}
.profile{text-align:center}
.profile img{display:block;margin:0 auto 10px;border-radius:16px}
.profile h3{font-size:18px}
.stats{display:flex;justify-content:center;gap:34px;margin:14px 0}
.stats b{display:block;font-size:22px;line-height:1.2}
.stats span{font-size:12px;color:var(--muted)}
.contacts{display:flex;justify-content:center;flex-wrap:wrap;gap:6px 14px;margin-bottom:14px;font-size:14px}
.profile .btn{color:#fff}
.plain{list-style:none;display:grid;gap:8px;font-size:14px}
.plain a{color:var(--ink)}
.plain a:hover{color:var(--accent)}
.toc ul{list-style:none;display:grid;gap:6px;font-size:14px;max-height:50vh;overflow:auto}
.toc li.l3{padding-left:14px}
.toc a{color:var(--muted)}
.toc a.on{color:var(--accent);font-weight:700}

/* 文章页 */
.post{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px 40px}
@media (max-width:640px){.post{padding:24px 20px}}
.post-head h1{font-size:clamp(26px,3.6vw,36px);font-weight:900;line-height:1.3;margin:10px 0 12px}
.post-head .meta{margin:0 0 8px}
.prose{margin-top:24px}
.prose>*+*{margin-top:1.1em}
.prose h2{font-size:25px;margin-top:2em;padding-bottom:6px;border-bottom:1px solid var(--line)}
.prose h3{font-size:20px;margin-top:1.6em}
.prose h4{font-size:17px;margin-top:1.4em}
.prose a{color:var(--accent)}
.prose ul,.prose ol{padding-left:1.5em;display:grid;gap:.35em}
.prose img{max-width:100%;height:auto;border-radius:var(--radius-sm);border:1px solid var(--line)}
.prose p>em:only-child{display:block;text-align:center;font-size:13px;color:var(--muted);margin-top:-6px}

.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.prose blockquote{border-left:4px solid var(--accent);background:var(--soft);padding:12px 18px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--muted)}
.prose blockquote>*+*{margin-top:.6em}
.prose :not(pre)>code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:var(--soft);padding:2px 6px;border-radius:6px;overflow-wrap:anywhere}
.tbl{overflow-x:auto}
.prose table{border-collapse:collapse;width:100%;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.prose th{background:var(--soft)}
.code{border-radius:var(--radius-sm);overflow:hidden;background:#0d1117;border:1px solid #21262d}
.code-bar{display:flex;justify-content:space-between;align-items:center;padding:6px 14px;background:#161b22;color:#8b949e;font-size:12px}
.copy{font:inherit;font-size:12px;color:#8b949e;background:none;border:1px solid #30363d;border-radius:6px;padding:1px 10px;cursor:pointer}
.copy:hover{color:#fff;border-color:#8b949e}
.code pre{overflow-x:auto;padding:16px 18px;margin:0}
.code pre code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px;line-height:1.6;color:#e6edf3;background:none;padding:0;display:block;white-space:pre}
.code pre code.hljs{padding:0;background:none}
.cta{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:40px;padding:22px 26px;border-radius:var(--radius-lg);background:linear-gradient(160deg,#080E2E,#16226B);color:#EAF0FF}
.cta b{display:block;font-size:18px}
.cta span{font-size:14px;opacity:.75}
.comment-note{margin-top:16px;color:var(--muted);font-size:14px}
.comment-note a{color:var(--accent)}
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
.prevnext a{display:block;padding:14px 18px;border:1px solid var(--line);border-radius:var(--radius-sm);text-decoration:none;font-weight:700;font-size:15px}
.prevnext a:last-child{text-align:right}
.prevnext a:hover{border-color:var(--accent)}
.prevnext small{display:block;font-weight:400;color:var(--muted);font-size:12px}
@media (max-width:560px){.prevnext{grid-template-columns:1fr}}
.related{margin-top:28px}
.related h3{font-size:15px;margin-bottom:8px}
.related ul{list-style:none;display:grid;gap:6px;font-size:15px}
.related a{color:var(--accent)}

/* 归档、搜索 */
.arch{list-style:none;display:grid;gap:8px}
.arch li{display:flex;gap:16px}
.arch time{color:var(--muted);font-variant-numeric:tabular-nums;flex:none}
.arch a{text-decoration:none}
.arch a:hover{color:var(--accent)}
#results .p-card h2{font-size:18px}

/* footer */
footer{padding:44px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{text-decoration:none}
footer a:hover{color:var(--ink)}
.foot-right{display:flex;gap:16px;flex-wrap:wrap}