:root{
  --bg:#0b0f17;--bg2:#0f1420;--card:#131a26;--card2:#182130;
  --line:#232f42;--line2:#2d3b52;
  --text:#e8eefb;--sub:#a9b8d0;--muted:#6b7d99;--dim:#4d5c73;
  --accent:#6c8cff;--accent2:#a78bfa;--cyan:#38d9d9;
  --green:#2ecc8f;--amber:#f5a524;
  --r:16px;--maxw:1180px;
  --mono:ui-monospace,"SF Mono",Consolas,"Cascadia Code",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);line-height:1.8;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ---------- 首页板块之间的纵向间距（之前完全缺失，导致手机上"文字堆在一起"）---------- */
main > section.container{margin-top:0;margin-bottom:58px}
main > section.container:last-child{margin-bottom:0}
main{padding:58px 0 84px}
.hero + main{padding-top:52px}
@media(max-width:980px){
  main{padding:44px 0 64px}
  main > section.container{margin-bottom:44px}
}
@media(max-width:560px){
  main{padding:34px 0 52px}
  main > section.container{margin-bottom:38px}
  .sec-head{margin-bottom:18px;gap:9px}
  .sec-head h2{font-size:18px}
  .sec-head::before{height:17px;width:3px}
  .sec-head .more{font-size:12.5px}
  .road-card{padding:16px 16px 14px}
  .feat{padding:18px}
  .road-grid{gap:11px}
  .stats{max-width:100%}
  .post{padding:17px 17px}
  .post h3{font-size:16px;margin-bottom:7px}
  .post p{font-size:13.5px}
  .stat{padding:15px 16px}
  .stat b{font-size:19px}
  .layout{gap:26px;padding-top:38px;padding-bottom:52px}
  .posts{gap:12px}
  .hero h1{font-size:26px;letter-spacing:-.3px}
  .hero p{font-size:14.5px}
  .hero-btns{flex-direction:column;gap:10px}
  .hero-btns a{width:100%;text-align:center;justify-content:center}
  .feat-grid,.nf-grid,.road-grid{gap:11px}
}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(11,15,23,.84);
  backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;height:64px;gap:34px}
.brand{display:flex;align-items:center;gap:11px;font-weight:680;font-size:16.5px}
.brand-icon{width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:grid;place-items:center;font-size:17px;box-shadow:0 6px 18px rgba(108,140,255,.35)}
.nav-links{display:flex;gap:5px;margin-left:auto;align-items:center}
.nav-links a{display:flex;align-items:center;padding:8px 15px;border-radius:9px;
  font-size:14.5px;line-height:1.4;color:var(--sub);transition:.2s}
.nav-links a:hover,.nav-links a.on{color:var(--text);background:#1a2334}

/* ---------- Hero ---------- */
.hero{position:relative;padding:84px 0 72px;border-bottom:1px solid var(--line);overflow:hidden}
.hero::before{content:"";position:absolute;inset:-40% -10% auto -10%;height:150%;pointer-events:none;
  background:radial-gradient(560px 300px at 22% 18%,rgba(108,140,255,.20),transparent 62%),
             radial-gradient(520px 300px at 78% 8%,rgba(167,139,250,.16),transparent 62%),
             radial-gradient(460px 260px at 55% 70%,rgba(56,217,217,.09),transparent 65%);
  filter:blur(8px)}
.hero-inner{position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:9px;padding:6px 14px;border-radius:999px;
  background:rgba(108,140,255,.10);border:1px solid rgba(108,140,255,.28);
  color:#9db2ff;font-size:12.5px;font-weight:600;letter-spacing:1.4px;margin-bottom:24px}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--cyan);font-style:normal;
  box-shadow:0 0 10px var(--cyan);animation:blink 2.4s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:clamp(30px,4.6vw,50px);line-height:1.24;font-weight:760;
  letter-spacing:-.6px;margin-bottom:20px;max-width:820px}
.grad{background:linear-gradient(100deg,var(--accent),var(--accent2) 45%,var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:16.5px;color:var(--sub);max-width:640px;margin-bottom:32px}
.hero-btns{display:flex;gap:13px;flex-wrap:wrap;margin-bottom:50px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:11px;
  font-size:15px;font-weight:600;transition:.22s;border:1px solid transparent}
.btn-p{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;
  box-shadow:0 8px 24px rgba(108,140,255,.30)}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(108,140,255,.42)}
.btn-g{border-color:var(--line2);color:var(--sub)}
.btn-g:hover{border-color:#3d5075;color:var(--text);background:#151d2c}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;max-width:760px}
.stat{background:var(--bg2);padding:20px 22px}
.stat b{display:block;font-size:25px;font-weight:720;font-family:var(--mono);letter-spacing:-.5px}
.stat span{font-size:12.5px;color:var(--muted)}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:1fr 320px;gap:44px;padding-top:56px;padding-bottom:72px}
.sec-head{display:flex;align-items:center;gap:12px;margin-bottom:26px}
.sec-head h2{font-size:20px;font-weight:680}
.sec-head::before{content:"";width:4px;height:19px;border-radius:3px;
  background:linear-gradient(180deg,var(--accent),var(--accent2))}
.sec-head .more{margin-left:auto;font-size:13.5px;color:var(--muted);transition:.2s}
.sec-head .more:hover{color:var(--accent)}

/* ---------- 文章卡片 ---------- */
.posts{display:flex;flex-direction:column;gap:16px}
.post{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:24px 26px;transition:.24s;position:relative;overflow:hidden;display:block}
.post::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--accent),var(--accent2));
  transform:scaleY(0);transform-origin:top;transition:transform .3s}
.post:hover{border-color:var(--line2);transform:translateX(4px);background:var(--card2)}
.post:hover::before{transform:scaleY(1)}
.post-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted);margin-bottom:11px}
.tag{padding:3px 10px;border-radius:6px;font-size:12px;font-weight:600;
  background:rgba(108,140,255,.13);color:#9db2ff;border:1px solid rgba(108,140,255,.22);white-space:nowrap}
.tag.g{background:rgba(46,204,143,.12);color:#5fe0ad;border-color:rgba(46,204,143,.22)}
.tag.a{background:rgba(245,165,36,.12);color:#fbbf5c;border-color:rgba(245,165,36,.22)}
.tag.v{background:rgba(167,139,250,.13);color:#c4b1ff;border-color:rgba(167,139,250,.24)}
.post h3{font-size:17.5px;font-weight:660;margin-bottom:9px;line-height:1.5;transition:.2s}
.post:hover h3{color:#b9c9ff}
.post p{font-size:14px;color:var(--sub);display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:14px;font-size:12.5px;color:var(--dim);display:flex;gap:16px}

/* ---------- 侧栏 ---------- */
aside{display:flex;flex-direction:column;gap:20px}
.widget{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.widget h4{font-size:12px;font-weight:660;margin-bottom:16px;color:var(--sub);
  letter-spacing:.8px;text-transform:uppercase}
.about{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{width:52px;height:52px;border-radius:14px;flex:none;font-size:24px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center}
.about b{display:block;font-size:15px;margin-bottom:2px}
.about span{font-size:12.5px;color:var(--muted)}
.about-txt{font-size:13.5px;color:var(--sub)}
.cats{display:flex;flex-direction:column;gap:2px}
.cat{display:flex;justify-content:space-between;align-items:center;padding:9px 12px;
  border-radius:9px;font-size:14px;color:var(--sub);transition:.2s}
.cat:hover{background:#1a2334;color:var(--text)}
.cat em{font-style:normal;font-size:12px;font-family:var(--mono);color:var(--dim);
  background:#1a2334;padding:2px 8px;border-radius:6px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags a{padding:5px 12px;border-radius:8px;font-size:12.5px;color:var(--sub);
  background:#182130;border:1px solid var(--line);transition:.2s}
.tags a:hover{border-color:var(--accent);color:#b9c9ff;background:rgba(108,140,255,.10)}

/* ---------- 文章页 ---------- */
.p-head{padding:52px 0 34px;border-bottom:1px solid var(--line);
  background:radial-gradient(600px 260px at 18% -30%,rgba(108,140,255,.13),transparent 65%)}
.crumb{font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a:hover{color:var(--accent)}
.p-head h1{font-size:clamp(25px,3.6vw,38px);line-height:1.34;font-weight:750;
  letter-spacing:-.5px;max-width:820px;margin-bottom:20px}
.p-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--muted)}
.article-layout{display:grid;grid-template-columns:1fr 240px;gap:52px;padding:44px 0 72px}
.prose{max-width:760px;font-size:15.5px;color:#cfd9ea;line-height:1.9}
.prose h2{font-size:22px;font-weight:700;margin:44px 0 16px;color:var(--text);
  padding-left:15px;border-left:4px solid var(--accent);line-height:1.5}
.prose h3{font-size:17.5px;font-weight:660;margin:30px 0 12px;color:var(--text)}
.prose p{margin-bottom:18px}
.prose strong{color:#fff;font-weight:650}
.prose ul,.prose ol{margin:0 0 18px 22px}
.prose li{margin-bottom:9px}
.prose code{font-family:var(--mono);font-size:13px;background:#1a2434;color:#8fd6ff;
  padding:2px 7px;border-radius:5px;border:1px solid #24334a}
.prose pre{background:#0d131e;border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;overflow-x:auto;margin:0 0 20px;position:relative}
.prose pre code{background:none;border:none;padding:0;color:#c8d6ec;font-size:13.5px;line-height:1.75}
.prose pre::before{content:attr(data-lang);position:absolute;top:9px;right:14px;
  font-size:11px;color:var(--dim);font-family:var(--mono);letter-spacing:.8px}
blockquote{border-left:4px solid var(--amber);background:rgba(245,165,36,.07);
  padding:15px 20px;border-radius:0 10px 10px 0;margin:0 0 20px;color:#e6d4b4;font-size:14.5px}
blockquote strong{color:#fbbf5c}
.callout{border:1px solid rgba(46,204,143,.28);background:rgba(46,204,143,.07);
  border-radius:12px;padding:17px 20px;margin:0 0 20px;font-size:14.5px;color:#bfe8d6}
.callout b{color:var(--green)}
table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:14px}
/* 表格横向滚动容器：窄屏时宽表格不挤压、不撑破页面 */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 20px;
  border-radius:10px}
.table-wrap table{margin:0}
@media(max-width:760px){
  .table-wrap{box-shadow:inset -14px 0 14px -14px rgba(0,0,0,.55)}
  .tc3 table{min-width:430px}
  .tc4 table,.tc5 table,.tc6 table{min-width:560px}
}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
th{background:#151d2b;color:var(--sub);font-weight:640;font-size:13px}
.p-tags{display:flex;gap:8px;flex-wrap:wrap;margin:36px 0 0;padding-top:26px;border-top:1px dashed var(--line)}
.p-tags a{padding:6px 13px;border-radius:8px;font-size:12.5px;color:var(--sub);
  background:#182130;border:1px solid var(--line);transition:.2s}
.p-tags a:hover{border-color:var(--accent);color:#b9c9ff}
.p-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px}
.p-nav a{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;transition:.22s}
.p-nav a:hover{border-color:var(--line2);background:var(--card2)}
.p-nav small{display:block;font-size:12px;color:var(--dim);margin-bottom:6px}
.p-nav b{font-size:14px;font-weight:620;line-height:1.5}
.p-nav .r{text-align:right}
/* 侧栏目录：跟随滚动。父级不能有 overflow:hidden，否则 sticky 失效 */
.toc{position:sticky;top:84px;align-self:start;
  max-height:calc(100vh - 108px);overflow-y:auto;padding-right:4px}
.toc::-webkit-scrollbar{width:5px}
.toc::-webkit-scrollbar-thumb{background:#2d3b52;border-radius:3px}
.toc::-webkit-scrollbar-track{background:transparent}
.toc h4{font-size:11.5px;font-weight:660;color:var(--muted);letter-spacing:1px;
  text-transform:uppercase;margin-bottom:14px}
.toc a{display:block;padding:7px 12px;border-radius:8px;font-size:13.5px;color:var(--muted);
  border-left:2px solid transparent;transition:.2s}
.toc a:hover{color:var(--text);background:#151d2c;border-left-color:var(--accent)}

/* ---------- 归档页 ---------- */
.arch-group{margin-bottom:38px}
.arch-group h3{font-size:16px;font-weight:680;margin-bottom:14px;color:var(--text);
  display:flex;align-items:center;gap:10px}
.arch-group h3 em{font-style:normal;font-size:12px;font-family:var(--mono);color:var(--dim)}
.arch-item{display:flex;align-items:center;gap:16px;padding:13px 16px;border-radius:11px;
  border:1px solid transparent;transition:.2s}
.arch-item:hover{background:var(--card);border-color:var(--line)}
.arch-item time{font-family:var(--mono);font-size:12.5px;color:var(--dim);flex:none;width:92px}
.arch-item b{font-size:15px;font-weight:600}
.arch-item:hover b{color:#b9c9ff}

/* ---- 正文里的图片 ---- */
.prose figure{margin:6px 0 24px;text-align:center}
.prose img{max-width:100%;height:auto;border-radius:12px;border:1px solid var(--line);
  display:block;margin:0 auto;cursor:zoom-in;transition:.22s;background:#0d131e}
.prose img:hover{border-color:#3d5075;transform:scale(1.008)}
.fig-cap{font-size:12.5px;color:var(--dim);text-align:center;margin-top:8px}

/* ---- 系列分页 ---- */
.series-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;margin:0 0 26px;font-size:13.5px}
.series-bar .sb-name{font-weight:660;color:var(--text)}
.series-bar .sb-num{font-family:var(--mono);font-size:12.5px;color:var(--accent);
  background:rgba(108,140,255,.12);border:1px solid rgba(108,140,255,.24);
  padding:3px 11px;border-radius:7px}
.series-bar .sb-all{margin-left:auto;color:var(--muted);transition:.2s}
.series-bar .sb-all:hover{color:var(--accent)}
.series-dots{display:flex;gap:7px;flex-wrap:wrap}
.series-dots a{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-size:12.5px;font-family:var(--mono);color:var(--muted);
  background:#182130;border:1px solid var(--line);transition:.2s}
.series-dots a:hover{border-color:var(--accent);color:#b9c9ff}
.series-dots a.cur{background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;border-color:transparent;font-weight:700;
  box-shadow:0 4px 14px rgba(108,140,255,.35)}
@media(max-width:560px){.series-dots a{width:27px;height:27px;font-size:12px}}

/* ---- 系列侧栏导航（可折叠）---- */
.outline{display:flex;flex-direction:column;gap:2px}
.toc-head{display:flex;align-items:center;justify-content:space-between;
  gap:8px;margin:0 0 8px;padding:0 2px}
.toc-head h4{margin:0}
.toc-fold{background:none;border:1px solid var(--line);color:var(--muted);
  font-size:11.5px;padding:2px 9px;border-radius:7px;cursor:pointer;
  font-family:inherit;transition:.18s;white-space:nowrap;line-height:1.7}
.toc-fold:hover{color:var(--text);border-color:var(--line2);background:#182130}
.ol-group{display:flex;flex-direction:column}
.ol-row{display:flex;align-items:stretch;gap:2px}
.ol-row .ol-page{flex:1;min-width:0}
.ol-page{display:block;padding:8px 11px;border-radius:9px;font-size:13.5px;
  color:var(--sub);font-weight:600;transition:.2s;border-left:2px solid transparent}
.ol-page:hover{background:#1a2334;color:var(--text)}
.ol-page.cur{color:#fff;border-left-color:var(--accent);
  background:linear-gradient(135deg,rgba(108,140,255,.20),rgba(167,139,250,.14))}
.ol-caret{flex:0 0 26px;background:none;border:0;color:var(--dim);font-size:11px;
  cursor:pointer;border-radius:8px;font-family:inherit;transition:.18s;
  padding:0;line-height:1;display:flex;align-items:center;justify-content:center}
.ol-caret:hover{color:var(--accent);background:#1a2334}
/* 小节默认收起，点开才显示 */
.ol-secs{display:none;flex-direction:column;gap:1px;margin:3px 0 9px 10px;
  padding-left:11px;border-left:1px solid var(--line)}
.ol-group.open .ol-secs{display:flex}
.ol-secs a{padding:5px 9px;border-radius:7px;font-size:12.5px;color:var(--muted);transition:.18s}
.ol-secs a:hover{color:#b9c9ff;background:#182130}
.ol-secs a.lv3{padding-left:16px;font-size:12px;color:var(--dim)}
.ol-secs a.cur{color:var(--accent);background:#182130}

/* ---- 归档页：分类可折叠 ---- */
.arch-head{display:flex;align-items:center;justify-content:space-between;gap:12px;
  width:100%;background:none;border:0;padding:0;cursor:pointer;
  font-family:inherit;text-align:left}
.arch-head h3{margin:0}
.arch-caret{color:var(--dim);font-size:12px;transition:.2s;flex:0 0 auto}
.arch-group.open .arch-caret{color:var(--accent)}
.arch-list{display:none;flex-direction:column;gap:2px;margin:12px 0 0}
.arch-group.open .arch-list{display:flex}

/* ---- 顶部导航：系列下拉 ---- */
.nav-drop{position:relative;display:flex;align-items:center}
.nav-drop-btn{background:none;border:0;color:var(--sub);font-size:14.5px;
  padding:8px 15px;border-radius:9px;cursor:pointer;font-family:inherit;
  transition:.2s;display:flex;align-items:center;gap:5px;line-height:1.4}
.nav-drop-btn:hover,.nav-drop.open .nav-drop-btn{color:var(--text);background:#1a2334}
.nav-drop-btn .caret{font-size:10px;color:var(--muted)}
.nav-drop-menu{display:none;position:absolute;top:calc(100% + 8px);right:0;
  min-width:230px;background:var(--card);border:1px solid var(--line);
  border-radius:13px;padding:7px;z-index:80;
  box-shadow:0 16px 40px rgba(0,0,0,.55)}
.nav-drop.open .nav-drop-menu{display:block}
.nav-drop-menu a{display:flex;align-items:center;gap:9px;padding:9px 12px;
  border-radius:9px;font-size:13.5px;color:var(--sub);transition:.18s}
.nav-drop-menu a:hover{background:#1a2334;color:var(--text)}
.nav-drop-menu a .ico{font-size:15px;flex:0 0 auto}
.nav-drop-menu a .cnt{margin-left:auto;font-size:11.5px;color:var(--dim)}

/* ---- 系列导航页 ---- */
.nav-hero{padding:46px 0 30px;border-bottom:1px solid var(--line);
  background:radial-gradient(600px 240px at 15% -30%,rgba(108,140,255,.14),transparent 65%)}
.nav-hero h1{font-size:clamp(24px,3.4vw,36px);font-weight:750;letter-spacing:-.5px;margin-bottom:14px}
.nav-hero p{color:var(--sub);font-size:15px;max-width:660px}
.nav-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;padding:42px 0 72px}
.nav-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 24px;transition:.22s}
.nav-card:hover{border-color:var(--line2);background:var(--card2)}
.nc-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.nc-num{width:30px;height:30px;border-radius:9px;flex:none;display:grid;place-items:center;
  font-family:var(--mono);font-size:13px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--accent2))}
.nc-title{font-size:16px;font-weight:660;flex:1;transition:.2s}
.nc-title:hover{color:#b9c9ff}
.nc-desc{font-size:13px;color:var(--muted);margin-bottom:13px;line-height:1.7}
.nc-secs{display:flex;flex-direction:column;gap:1px;
  border-top:1px dashed var(--line);padding-top:12px}
.nc-secs a{padding:6px 10px;border-radius:8px;font-size:13px;color:var(--sub);transition:.18s}
.nc-secs a:hover{background:#1a2334;color:#b9c9ff}
.nc-secs a.lv3{padding-left:22px;font-size:12.5px;color:var(--muted)}
.nc-num{font-size:15px}
.nc-all{display:inline-block;margin-top:14px;font-size:13px;color:var(--accent);transition:.2s}
.nc-all:hover{color:#9db2ff}
@media(max-width:860px){.nav-grid{grid-template-columns:1fr}}

/* ---- 博客首页：学习路线 ---- */
.sec-sub{margin:-14px 0 24px;font-size:14px;color:var(--muted);line-height:1.8}
.road-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.road-card{position:relative;display:flex;flex-direction:column;gap:8px;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:18px 18px 16px;transition:.24s}
.road-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--accent),var(--accent2));
  transform:scaleY(0);transform-origin:top;transition:transform .3s}
.road-card:hover{border-color:var(--line2);background:var(--card2);transform:translateY(-3px)}
.road-card:hover::before{transform:scaleY(1)}
.road-no{position:absolute;top:14px;right:16px;font-family:var(--mono);font-size:11.5px;color:var(--dim)}
.road-ico{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:19px;
  margin-bottom:4px;border:1px solid var(--line2);
  background:linear-gradient(135deg,rgba(108,140,255,.20),rgba(167,139,250,.14))}
.road-t{font-size:14.5px;font-weight:650;line-height:1.5;transition:.2s}
.road-card:hover .road-t{color:#b9c9ff}
.road-n{font-size:12px;color:var(--muted);font-family:var(--mono)}

/* ---- 博客首页：精选文章 ---- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat{position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 22px 20px;transition:.24s}
.feat::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  transform:scaleX(0);transform-origin:left;transition:transform .32s}
.feat:hover{border-color:var(--line2);background:var(--card2);transform:translateY(-4px)}
.feat:hover::after{transform:scaleX(1)}
.feat h3{font-size:16.5px;font-weight:660;line-height:1.55;margin:12px 0 10px;transition:.2s}
.feat:hover h3{color:#b9c9ff}
.feat p{font-size:13.5px;color:var(--sub);line-height:1.8;display:-webkit-box;
  -webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.feat-foot{margin-top:auto;padding-top:16px;font-size:12.5px;color:var(--dim);display:flex;gap:15px}
/* 精选卡片上的「所属系列」小标签（🐳 云原生 · Docker） */
.feat-series{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;max-width:100%;
  padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;color:#c4b1ff;background:rgba(167,139,250,.13);
  border:1px solid rgba(167,139,250,.24)}
/* 真实阅读量：先在 HTML 里占位「—」，前端拿到 assets/views.json 再填数字 */
.view-count{font-variant-numeric:tabular-nums}
.arch-views{margin-left:auto;flex:none;font-family:var(--mono);font-size:12.5px;color:var(--dim)}
.home-more{display:flex;justify-content:center;margin-top:30px}

/* ---- 站内搜索 ---- */
.search-wrap{position:relative;display:flex;align-items:center;max-width:720px}
.search-ico{position:absolute;left:18px;font-size:16px;color:var(--muted);pointer-events:none}
.search-input{width:100%;padding:15px 20px 15px 48px;border-radius:14px;font-size:15.5px;
  font-family:inherit;color:var(--text);background:var(--card);border:1px solid var(--line);
  outline:none;transition:.22s}
.search-input::placeholder{color:var(--dim)}
.search-input:focus{border-color:var(--accent);background:var(--card2);
  box-shadow:0 0 0 4px rgba(108,140,255,.12)}
.search-meta{margin:16px 0 22px;font-size:13.5px;color:var(--muted)}
.search-meta b{color:var(--accent);font-family:var(--mono);font-size:15px}
.search-list{display:flex;flex-direction:column;gap:14px;max-width:860px}
.s-item{display:block;background:var(--card);border:1px solid var(--line);border-radius:13px;
  padding:18px 20px;transition:.22s}
.s-item:hover{border-color:var(--line2);background:var(--card2);transform:translateX(4px)}
.s-head{display:flex;align-items:center;gap:11px;flex-wrap:wrap;margin-bottom:9px}
.s-title{font-size:16px;font-weight:640;line-height:1.5;transition:.2s}
.s-item:hover .s-title{color:#b9c9ff}
.s-date{font-size:12.5px;color:var(--dim);font-family:var(--mono);margin-left:auto}
.s-snip{font-size:13.5px;color:var(--sub);line-height:1.8;word-break:break-word}
.s-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:11px}
.s-tag{font-size:12px;color:var(--dim);background:#182130;border:1px solid var(--line);
  padding:2px 9px;border-radius:7px}
mark{background:rgba(245,165,36,.22);color:#ffd68a;border-radius:4px;padding:0 2px}
.s-none{background:var(--card);border:1px dashed var(--line2);border-radius:13px;
  padding:32px 24px;text-align:center;color:var(--sub);font-size:14.5px;line-height:2}
.s-none a{color:var(--accent)}

/* ---- 标签页 ---- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:14px}
.tag-cloud a{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:10px;
  font-size:13px;color:var(--sub);background:#182130;border:1px solid var(--line);transition:.2s}
.tag-cloud a:hover{border-color:var(--accent);color:#b9c9ff;background:rgba(108,140,255,.10)}
.tag-cloud a.lg{font-size:14.5px;color:var(--text)}
.tag-cloud a.xl{font-size:16px;color:var(--text);border-color:var(--line2);
  background:linear-gradient(135deg,rgba(108,140,255,.14),rgba(167,139,250,.10))}
.tag-cloud a em{font-style:normal;font-family:var(--mono);font-size:11.5px;color:var(--dim)}
.tag-sec{margin-bottom:40px;scroll-margin-top:88px}
.tag-sec-h{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:680;margin-bottom:12px}
.tag-sec-h em{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--dim);
  background:#182130;border:1px solid var(--line);padding:2px 9px;border-radius:7px}
.tag-sec-list{display:flex;flex-direction:column;gap:2px}

/* ---- 关于页 ---- */
.about-road{list-style:none;margin:0 0 20px;display:flex;flex-direction:column;gap:9px}
.about-road li{margin:0}
.about-road-item{display:flex;align-items:center;gap:12px;padding:12px 15px;
  background:var(--card);border:1px solid var(--line);border-radius:12px;transition:.22s}
.about-road-item:hover{border-color:var(--line2);background:var(--card2);transform:translateX(4px)}
.ar-no{font-family:var(--mono);font-size:12px;color:var(--dim);flex:none}
.ar-ico{width:32px;height:32px;border-radius:10px;flex:none;display:grid;place-items:center;font-size:16px;
  border:1px solid var(--line2);
  background:linear-gradient(135deg,rgba(108,140,255,.18),rgba(167,139,250,.12))}
.ar-t{font-size:14.5px;font-weight:620;flex:1;min-width:0}
.ar-n{font-size:12px;color:var(--muted);font-family:var(--mono);flex:none}
.about-mail{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:10px;
  font-size:14px;font-family:var(--mono);color:#9db2ff;background:rgba(108,140,255,.10);
  border:1px solid rgba(108,140,255,.28);transition:.2s}
.about-mail:hover{background:rgba(108,140,255,.18);color:#c3d0ff}

/* ---- 404 ---- */
.nf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:860px}
.nf-card{display:flex;flex-direction:column;gap:7px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;transition:.24s}
.nf-card:hover{border-color:var(--line2);background:var(--card2);transform:translateY(-4px)}
.nf-ico{font-size:24px;margin-bottom:6px}
.nf-card b{font-size:16px;font-weight:650;transition:.2s}
.nf-card:hover b{color:#b9c9ff}
.nf-card span{font-size:13px;color:var(--muted)}
.nf-tip{margin-top:28px;font-size:14px;color:var(--muted)}
.nf-tip a{color:var(--accent)}


footer{border-top:1px solid var(--line);padding:34px 0 42px;margin-top:20px}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.foot b{color:var(--sub)}
.foot-r{display:flex;gap:8px;align-items:center}
.foot-r a{padding:8px 13px;border-radius:9px;font-size:13px;color:var(--muted);
  border:1px solid var(--line);transition:.2s}
.foot-r a:hover{color:var(--text);border-color:var(--line2);background:#151d2c}
.foot-r a.foot-rss{font-family:var(--mono);font-size:12px;padding:8px 11px}
.tech{font-family:var(--mono);font-size:12px;color:var(--dim);margin-top:18px;
  padding-top:18px;border-top:1px dashed var(--line)}
.foot-mail{color:var(--dim);transition:.2s;border-bottom:1px dotted var(--line2)}
.foot-mail:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ---- 窄屏：汉堡菜单（导航从顶部落下，默认收起）---- */
.nav-burger{display:none;align-items:center;justify-content:center;width:42px;height:38px;
  margin-left:auto;padding:0;border-radius:10px;cursor:pointer;font-family:inherit;
  background:#141c2a;border:1px solid var(--line);color:var(--sub);transition:.2s}
.nav-burger:hover{color:var(--text);border-color:var(--line2);background:#182130}
.nav-burger:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.burger-lines{display:flex;flex-direction:column;justify-content:center;gap:4px;width:18px;height:14px}
.burger-lines i{display:block;height:2px;border-radius:2px;background:currentColor;transition:.22s}
.nav-links.open ~ .nav-burger .burger-lines i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-links.open ~ .nav-burger .burger-lines i:nth-child(2){opacity:0}
.nav-links.open ~ .nav-burger .burger-lines i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media(max-width:980px){
  .nav-burger{display:inline-flex}
  .nav-links{position:absolute;top:100%;left:0;right:0;margin:0;gap:2px;
    display:none;flex-direction:column;padding:10px 18px 16px;
    background:rgba(13,18,29,.97);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);box-shadow:0 18px 40px rgba(0,0,0,.5);
    max-height:calc(100vh - 64px);overflow-y:auto}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;border-radius:10px;font-size:15px}
  .nav-drop{width:100%}
  .nav-drop-btn{width:100%;justify-content:flex-start;padding:12px 14px;font-size:15px}
  .nav-drop-menu{position:static;display:none;min-width:0;margin:2px 0 4px;
    background:#101725;border-radius:11px;box-shadow:none}
  .nav-drop.open .nav-drop-menu{display:block}
  .layout,.article-layout{grid-template-columns:1fr;gap:34px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .toc{display:none}
  .p-nav{grid-template-columns:1fr}
  .road-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:1fr}
  .nf-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .container{padding:0 16px}
  .hero{padding:56px 0 50px}
  .post,.feat{padding:20px}
  .stat b{font-size:21px}
  .road-grid{grid-template-columns:1fr}
  /* 手机端细化：防止窄屏挤压和溢出 */
  .p-head{padding:38px 0 26px}
  .prose{font-size:15px;line-height:1.85}
  .prose h2{font-size:20px}
  .prose h3{font-size:17px}
  .prose h4{font-size:15.5px}
  .prose ul,.prose ol{padding-left:20px}
  .prose blockquote{padding:12px 14px;margin:16px 0}
  .series-bar{gap:10px;padding:12px 14px;font-size:12.5px}
  .series-dots a{width:24px;height:24px;font-size:11.5px;border-radius:7px}
  .series-dots{gap:5px}
  .p-meta{gap:11px;font-size:12.5px}
  pre{padding:14px 14px;font-size:12.5px;line-height:1.65}
  .p-nav{gap:12px}
  .arch-item{flex-direction:column;gap:3px;align-items:flex-start}
  .arch-views{margin-left:0}
  .crumb{font-size:12.5px;margin-bottom:16px}
}
/* 长命令 / URL 不撑破容器（全局兜底） */
.prose{overflow-wrap:break-word;word-break:break-word}
.prose pre,.prose .table-wrap{max-width:100%}
.prose code{overflow-wrap:anywhere}