/* GitVP・开源文摘 */
:root{
  --bg:#ffffff; --bg-sub:#f6f8fa; --fg:#1f2328; --mute:#57606a; --dim:#8c959f;
  --border:#d8dee4; --border-soft:#eaeef2;
  --brand:#f05033; --brand-soft:#fff1ee; --blue:#0969da;
  --r:12px; --r-sm:8px;
  --shadow:0 1px 2px rgba(31,35,40,.06),0 4px 14px rgba(31,35,40,.05);
  --shadow-h:0 2px 6px rgba(31,35,40,.09),0 12px 28px rgba(31,35,40,.10);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px; line-height:1.65; -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border-soft)}
.hdr-in{display:flex;align-items:center;gap:18px;height:60px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);font-weight:700;font-size:17px;letter-spacing:.2px}
.brand:hover{text-decoration:none}
.logo{width:28px;height:28px;border-radius:7px;display:block}
.bn em{font-style:normal;font-weight:500;font-size:13px;color:var(--mute);margin-left:6px}
.nav{display:flex;gap:4px;margin-left:8px;flex:1}
.nav a{color:var(--mute);font-size:14px;padding:6px 10px;border-radius:var(--r-sm)}
.nav a:hover{background:var(--bg-sub);color:var(--fg);text-decoration:none}
.hdr-r{display:flex;align-items:center;gap:10px}
.ghbtn{display:inline-flex;align-items:center;gap:6px;background:var(--fg);color:#fff;
  font-size:13px;padding:7px 12px;border-radius:20px;font-weight:500}
.ghbtn:hover{background:#000;text-decoration:none;color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 40px;
  background:
    radial-gradient(900px 320px at 22% -10%,#ffe8e1 0%,rgba(255,232,225,0) 70%),
    radial-gradient(700px 300px at 88% 0%,#e7f0ff 0%,rgba(231,240,255,0) 70%),
    #fff;
  border-bottom:1px solid var(--border-soft)}
.hero-in{text-align:center}
.hero-badge{display:inline-block;font-size:12.5px;color:var(--brand);background:var(--brand-soft);
  border:1px solid #ffd9cf;padding:4px 12px;border-radius:20px;font-weight:500;margin-bottom:16px}
.hero h1{margin:0;font-size:44px;line-height:1.2;letter-spacing:-.5px;font-weight:800}
.hero h1 em{font-style:normal;font-weight:600;font-size:.62em;color:var(--mute);margin-left:4px}
.hslogan{margin:12px 0 0;font-size:19px;color:var(--brand);font-weight:600;letter-spacing:.3px}
.hdesc{margin:10px auto 0;max-width:640px;color:var(--mute);font-size:15px}
.stats{display:flex;justify-content:center;gap:14px;margin-top:26px;flex-wrap:wrap}
.stat{background:#fff;border:1px solid var(--border);border-radius:var(--r);padding:12px 26px;min-width:118px;box-shadow:var(--shadow)}
.stat b{display:block;font-size:24px;line-height:1.2;font-weight:800}
.stat span{font-size:12.5px;color:var(--mute)}

/* ---------- toolbar ---------- */
.toolbar{padding:24px 22px 6px}
.search{position:relative;max-width:560px;margin:0 auto}
.search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--dim)}
.search input{width:100%;font-size:16px;font-family:inherit;padding:11px 40px 11px 40px;
  border:1px solid var(--border);border-radius:24px;background:#fff;outline:none;color:var(--fg)}
.search input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(9,105,218,.14)}
.search .clr{position:absolute;right:10px;top:50%;transform:translateY(-50%);border:0;background:var(--bg-sub);
  color:var(--mute);width:24px;height:24px;border-radius:50%;cursor:pointer;font-size:12px;line-height:1}
.cats{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}
.chip{border:1px solid var(--border);background:#fff;color:var(--mute);font-family:inherit;font-size:14px;
  padding:6px 14px;border-radius:20px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:.15s}
.chip i{font-style:normal;font-size:11.5px;color:var(--dim);background:var(--bg-sub);border-radius:10px;padding:0 6px}
.chip:hover{border-color:var(--c,var(--blue));color:var(--c,var(--blue))}
.chip.on{background:var(--c,var(--fg));border-color:var(--c,var(--fg));color:#fff;font-weight:500}
.chip.on i{background:rgba(255,255,255,.24);color:#fff}

/* ---------- grid & card ---------- */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-top:18px;padding-bottom:36px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--r);
  padding:0;color:var(--fg);overflow:hidden;transition:.18s;position:relative}
.card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:#c4ccd4}
.ctop{display:flex;align-items:center;gap:8px;padding:13px 16px 0;font-size:12.5px}
.ctop::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c)}
.chipc{color:var(--c);background:color-mix(in srgb,var(--c) 10%,#fff);border:1px solid color-mix(in srgb,var(--c) 26%,#fff);
  padding:2px 9px;border-radius:20px;font-weight:600}
.badge-app{background:linear-gradient(135deg,#f05033,#ff7a45);color:#fff;padding:2px 9px;border-radius:20px;font-weight:600;font-size:11.5px}
.badge-app.sm{font-size:11px;padding:1px 8px}
.stars{margin-left:auto;color:var(--mute);font-size:12.5px;white-space:nowrap}
.card h3{margin:10px 16px 0;font-size:18px;line-height:1.4;font-weight:700;letter-spacing:-.2px}
.csub{margin:5px 16px 0;color:var(--blue);font-size:13.5px;line-height:1.45}
.csum{margin:9px 16px 0;color:var(--mute);font-size:13.5px;line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:66px}
.ctags{display:flex;flex-wrap:wrap;gap:6px;margin:12px 16px 0}
.ctags span{font-size:11.5px;color:var(--mute);background:var(--bg-sub);border-radius:5px;padding:2px 8px}
.cf{display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding:12px 16px 14px;border-top:1px solid var(--border-soft)}
.repo{font-size:12px;color:var(--dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.more{font-size:13px;color:var(--blue);font-weight:600;white-space:nowrap}
.empty{text-align:center;color:var(--mute);padding:40px 0 70px;font-size:15px}
.empty.big{padding:80px 0}

/* ---------- article ---------- */
.art{max-width:880px;padding-bottom:60px}
.crumb{display:flex;align-items:center;gap:8px;padding:22px 0 0;font-size:13px;color:var(--mute)}
.crumb a{color:var(--mute)}
.crumb .cc{color:var(--c);font-weight:600}
.ahdr{padding:14px 0 20px;border-bottom:1px solid var(--border-soft)}
.ahdr h1{margin:0;font-size:34px;line-height:1.25;letter-spacing:-.6px;font-weight:800}
.asub{margin:8px 0 0;color:var(--blue);font-size:16px}
.ameta{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:16px;font-size:13.5px;color:var(--fg)}
.ameta .mi{display:inline-flex;gap:7px;align-items:baseline}
.ameta i{font-style:normal;color:var(--dim);font-size:12px}
.acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:#fff;color:var(--fg);
  font-size:14px;font-family:inherit;padding:8px 15px;border-radius:var(--r-sm);cursor:pointer;font-weight:500}
.btn:hover{background:var(--bg-sub);text-decoration:none}
.btn.pri{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.pri:hover{background:#d9432a;color:#fff}
.btn.sm{font-size:12.5px;padding:5px 11px}
.ablock{padding:22px 0;border-bottom:1px solid var(--border-soft)}
.ablock h2{margin:0 0 12px;font-size:13px;letter-spacing:1.4px;color:var(--dim);font-weight:700;text-transform:uppercase}
.abs p{margin:0;color:var(--fg);font-size:15.5px;line-height:1.8}
.hl ul{margin:0;padding:0;list-style:none;display:grid;gap:9px}
.hl li{position:relative;padding-left:22px;font-size:15px;line-height:1.75;color:var(--fg)}
.hl li::before{content:"";position:absolute;left:6px;top:11px;width:7px;height:7px;border-radius:2px;background:var(--brand);transform:rotate(45deg)}
.acontent .md{font-size:16px;line-height:1.85;color:var(--fg)}
.acontent .md h2,.acontent .md h3{margin:26px 0 12px;font-size:20px}
.acontent .md p{margin:0 0 14px}
.acontent .md img{border-radius:var(--r-sm)}
.acontent .md pre{background:var(--bg-sub);padding:14px;border-radius:var(--r-sm);overflow:auto}
.acontent .md blockquote{margin:0 0 14px;padding:2px 0 2px 16px;border-left:3px solid var(--brand);color:var(--mute)}
.acontent .md a{word-break:break-all}
.morelist{display:grid;gap:8px}
.morelist a{display:flex;align-items:baseline;gap:10px;padding:11px 14px;border:1px solid var(--border);
  border-radius:var(--r-sm);color:var(--fg);font-size:15px}
.morelist a:hover{background:var(--bg-sub);text-decoration:none}
.mt{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ms{color:var(--dim);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.marrow{margin-left:auto;color:var(--dim)}

/* ---------- reader (内嵌全文) ---------- */
.reader{padding:22px 0 0;border-bottom:0}
.rtb{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:12px}
.rt{font-size:13.5px;color:var(--mute)}
.ra{margin-left:auto;display:flex;gap:8px}
.rframe{width:100%;height:78vh;min-height:560px;border:1px solid var(--border);border-radius:var(--r);background:#fff;display:block}
.reader:fullscreen{background:#fff;padding:8px}
.reader:fullscreen .rframe{height:calc(100vh - 60px);border:0}

/* ---------- footer ---------- */
.ft{border-top:1px solid var(--border-soft);background:var(--bg-sub);margin-top:20px}
.ft-in{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;padding:28px 22px}
.ft-l strong{font-size:15px}
.ft-l p{margin:4px 0 0;font-size:13.5px;color:var(--mute)}
.ft-l .dim{color:var(--dim);font-size:12.5px}
.ft-r{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-start;font-size:13.5px}
.ft-r a{color:var(--mute)}

/* ---------- about ---------- */
.about{max-width:760px;padding:26px 0 60px}
.about h1{font-size:30px;margin:0 0 6px;letter-spacing:-.5px}
.about .lead{color:var(--mute);margin:0 0 26px}
.about h2{font-size:19px;margin:30px 0 10px}
.about p,.about li{font-size:15.5px;line-height:1.8}
.about ul{padding-left:20px;margin:0}
.about .note{background:var(--bg-sub);border:1px solid var(--border);border-radius:var(--r);padding:16px 18px;font-size:14px;color:var(--mute)}

/* ---------- admin ---------- */
.adm{max-width:1100px;padding:24px 0 60px}
.adm h1{font-size:24px;margin:0 0 4px}
.adm-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.adm-top .sp{flex:1}
.login{max-width:340px;margin:12vh auto;padding:28px;border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow)}
.login h1{font-size:20px;margin:0 0 4px}
.login p{margin:0 0 18px;color:var(--mute);font-size:13.5px}
.login input{width:100%;font-size:16px;font-family:inherit;padding:11px 12px;border:1px solid var(--border);
  border-radius:var(--r-sm);margin-bottom:12px;outline:none}
.login input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(9,105,218,.14)}
.login button{width:100%;background:var(--brand);color:#fff;border:0;font-family:inherit;font-size:15px;
  padding:11px;border-radius:var(--r-sm);cursor:pointer;font-weight:600}
.login .err{color:#cf222e;font-size:13px;margin-bottom:10px;min-height:18px}
table.at{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
table.at th,table.at td{padding:10px 12px;border-bottom:1px solid var(--border-soft);text-align:left;vertical-align:middle}
table.at th{background:var(--bg-sub);font-size:12.5px;color:var(--mute);font-weight:600}
table.at tr:last-child td{border-bottom:0}
table.at .op{white-space:nowrap;text-align:right}
table.at .op button{margin-left:6px}
.form{background:#fff;border:1px solid var(--border);border-radius:var(--r);padding:18px}
.form .row{margin-bottom:14px}
.form label{display:block;font-size:12.5px;color:var(--mute);margin-bottom:5px;font-weight:600}
.form input[type=text],.form select,.form textarea{width:100%;font-size:16px;font-family:inherit;padding:9px 11px;
  border:1px solid var(--border);border-radius:var(--r-sm);outline:none;background:#fff;color:var(--fg)}
.form textarea{min-height:96px;line-height:1.7}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(9,105,218,.14)}
.form .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form .foot{display:flex;gap:10px;justify-content:flex-end;padding-top:6px;border-top:1px solid var(--border-soft);margin-top:6px}
.mask{position:fixed;inset:0;background:rgba(27,31,36,.55);display:flex;align-items:flex-start;justify-content:center;
  padding:40px 16px;overflow:auto;z-index:100}
.mask[hidden]{display:none}
.modal{background:#fff;border-radius:var(--r);width:100%;max-width:720px;box-shadow:0 18px 50px rgba(0,0,0,.24)}
.modal-h{display:flex;align-items:center;padding:14px 18px;border-bottom:1px solid var(--border-soft);font-weight:700}
.modal-h .x{margin-left:auto;border:0;background:none;font-size:18px;cursor:pointer;color:var(--mute)}
.modal-b{padding:18px}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:32px;background:#1f2328;color:#fff;
  padding:10px 18px;border-radius:22px;font-size:14px;z-index:200;opacity:0;transition:.2s;pointer-events:none}
.toast.on{opacity:1;bottom:44px}

/* ---------- 站内全文阅读 ---------- */
.rd-grid{display:flex;gap:32px;align-items:flex-start;padding-top:18px}
.rd-body{flex:1;min-width:0;max-width:840px}
.rd-head{padding-bottom:18px;border-bottom:1px solid var(--border-soft)}
.rd-head h1{margin:10px 0 0;font-size:31px;line-height:1.3;letter-spacing:-.5px;font-weight:800}
.rd-abs{display:flex;gap:10px;margin:18px 0 4px;padding:14px 16px;background:var(--bg-sub);
  border:1px solid var(--border-soft);border-radius:var(--r-sm);font-size:14.5px;line-height:1.75;color:var(--mute)}
.rd-abs b{flex:none;color:var(--brand);font-weight:700}
.rd-foot{margin-top:30px;padding-top:18px;border-top:1px solid var(--border-soft);color:var(--dim);font-size:13px}
.rd-foot p{margin:0 0 6px}
.tocbtn{display:none}

.rd-side{flex:0 0 244px;width:244px;position:sticky;top:74px;
  max-height:calc(100vh - 96px);overflow:auto;padding:4px 0 20px}
.toc{border-left:2px solid var(--border-soft);padding-left:4px}
.toc-t{font-size:12px;letter-spacing:1.2px;color:var(--dim);font-weight:700;padding:0 8px 8px}
.toc-l{max-height:calc(100vh - 150px);overflow:auto}
.toc a{display:block;padding:4px 9px;margin:1px 0;color:var(--mute);font-size:13.5px;line-height:1.5;
  border-radius:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.toc a:hover{background:var(--bg-sub);color:var(--fg);text-decoration:none}
.toc a.lv3{padding-left:22px;font-size:12.5px;color:var(--dim)}
.toc a.on{color:var(--brand);font-weight:600;background:var(--brand-soft)}

/* Markdown 正文排版（GitHub 风格） */
.md-body{font-size:16px;line-height:1.8;color:var(--fg);word-wrap:break-word;padding-top:6px}
.md-body>*:first-child{margin-top:0}
.md-body h1,.md-body h2,.md-body h3,.md-body h4{margin:28px 0 14px;line-height:1.35;font-weight:700;
  scroll-margin-top:78px}
.md-body h1{font-size:26px;padding-bottom:.3em;border-bottom:1px solid var(--border-soft)}
.md-body h2{font-size:21px;padding-bottom:.3em;border-bottom:1px solid var(--border-soft)}
.md-body h3{font-size:17.5px}
.md-body h4{font-size:15.5px;color:var(--mute)}
.md-body p{margin:0 0 15px}
.md-body ul,.md-body ol{padding-left:1.9em;margin:0 0 15px}
.md-body li{margin:.25em 0}
.md-body li>ul,.md-body li>ol{margin:.25em 0}
.md-body blockquote{margin:0 0 15px;padding:0 1em;color:var(--mute);border-left:.25em solid var(--border)}
.md-body blockquote p:last-child{margin-bottom:0}
.md-body pre{padding:15px 16px;overflow:auto;background:var(--bg-sub);border-radius:var(--r-sm);
  margin:0 0 16px;line-height:1.5;font-size:13.5px;border:1px solid var(--border-soft)}
.md-body code{font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  background:rgba(175,184,193,.2);padding:.2em .4em;border-radius:6px;font-size:85%}
.md-body pre code{background:transparent;padding:0;font-size:100%;border-radius:0}
.md-body table{border-collapse:collapse;display:block;width:max-content;max-width:100%;overflow:auto;margin:0 0 16px;font-size:14.5px}
.md-body th,.md-body td{border:1px solid var(--border);padding:6px 13px}
.md-body th{background:var(--bg-sub);font-weight:600}
.md-body tr:nth-child(2n) td{background:#fafbfc}
.md-body img{max-width:100%;border-radius:var(--r-sm);margin:6px 0;height:auto}
.md-body hr{height:1px;background:var(--border);border:0;margin:26px 0}
.md-body a{word-break:break-word}
.md-body details{margin:0 0 14px;padding:10px 14px;background:var(--bg-sub);border-radius:var(--r-sm)}
.md-body summary{cursor:pointer;font-weight:600}

.more-wrap{display:flex;justify-content:center;padding:6px 0 46px}
.morebtn{padding:10px 26px;border-radius:22px;font-size:14px}
/* ---------- responsive ---------- */
@media (max-width:1080px){
  .rd-side{display:none}
  .tocbtn{display:inline-flex}
  .rd-body{max-width:100%}
}
.tocpop{position:fixed;inset:0;background:rgba(27,31,36,.5);z-index:120;display:none;overscroll-behavior:contain}
.tocpop.on{display:block}
.tocpop .in{position:absolute;left:0;right:0;bottom:0;background:#fff;border-radius:16px 16px 0 0;
  max-height:72vh;overflow:auto;padding:6px 16px calc(18px + env(safe-area-inset-bottom));
  animation:pop .18s ease-out}
.tocpop .th{display:flex;align-items:center;padding:10px 2px 12px;font-weight:700;font-size:16px}
.tocpop .th .x{margin-left:auto;border:0;background:none;font-size:20px;color:var(--mute);cursor:pointer}
.tocpop a{display:block;padding:9px 10px;color:var(--fg);font-size:15px;border-radius:8px;
  border-bottom:1px solid var(--border-soft)}
.tocpop a.lv3{padding-left:24px;font-size:14px;color:var(--mute)}
.tocpop a:active{background:var(--bg-sub)}
@keyframes pop{from{transform:translateY(100%)}to{transform:translateY(0)}}

@media (max-width:980px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:36px}
}
@media (max-width:700px){
  .wrap{padding:0 16px}
  .hdr-in{height:54px;gap:10px}
  .nav{display:none}
  .hero{padding:36px 0 30px}
  .hero h1{font-size:29px}
  .hslogan{font-size:16px}
  .hdesc{font-size:14px}
  .stat{padding:10px 18px;min-width:96px}
  .stat b{font-size:20px}
  .grid{grid-template-columns:1fr;gap:14px}
  .card h3{font-size:17px}
  .csum{min-height:0}
  .ahdr h1{font-size:26px}
  .art{padding-bottom:40px}
  .rframe{height:76vh;min-height:460px}
  .ft-in{flex-direction:column}
  .form .two{grid-template-columns:1fr}
  .ameta{gap:6px 16px;font-size:13px}
  .btn{width:100%;justify-content:center}
  .acts{gap:8px}
  .rtb .ra{margin-left:0;width:100%}
  .rtb .ra .btn{width:auto}
}
@media (max-width:400px){
  .brand .bn em{display:none}
}