/* ============================================================
   Aurora — 原创深色科技风博客主题样式
   ============================================================ */

:root{
    --aurora:#22d3ee;
    --aurora2:#3b82f6;
    --aurora-grad:linear-gradient(135deg,#22d3ee,#3b82f6);
    --bg-0:#070b14;
    --bg-1:#0b101c;
    --bg-2:#0f1626;
    --card-bg:rgba(255,255,255,.035);
    --card-bg-hover:rgba(255,255,255,.06);
    --card-border:rgba(255,255,255,.09);
    --card-border-strong:rgba(255,255,255,.16);
    --text:#e7edf5;
    --text-2:#b8c4d4;
    --text-3:#8795aa;
    --code-bg:#0d1117;
    --radius:12px;
    --shadow:0 8px 30px rgba(0,0,0,.35);
    --glow:0 0 22px rgba(34,211,238,.16);
    --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;
    --mono:"JetBrains Mono","Fira Code",Consolas,"SF Mono",Menlo,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}

body{
    margin:0;
    font-family:var(--font);
    font-size:16.5px;
    line-height:1.85;
    color:var(--text);
    font-weight:300;
    background:
        radial-gradient(1100px 600px at 12% -8%, rgba(34,211,238,.10), transparent 60%),
        radial-gradient(900px 500px at 95% 0%, rgba(129,140,248,.10), transparent 55%),
        linear-gradient(180deg,var(--bg-1),var(--bg-0));
    background-attachment:fixed;
    min-height:100vh;
}
body::before{
    content:"";
    position:fixed;inset:0;pointer-events:none;z-index:0;
    background-image:
        linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
    background-size:44px 44px;
    -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 10%,transparent 70%);
    mask-image:radial-gradient(ellipse at 50% 0%,#000 10%,transparent 70%);
}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:var(--aurora-grad);border-radius:10px;border:2px solid var(--bg-0)}

a{color:var(--aurora);text-decoration:none;transition:color .2s}
a:hover{color:#67e8f9;text-shadow:0 0 12px rgba(34,211,238,.5)}
h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.4;color:var(--text);letter-spacing:.3px}

/* ---------- 顶部栏 ---------- */
.aurora-topbar{
    position:sticky;top:0;z-index:50;
    backdrop-filter:blur(14px) saturate(1.4);
    -webkit-backdrop-filter:blur(14px) saturate(1.4);
    background:rgba(10,14,24,.74);
    border-bottom:1px solid var(--card-border);
}
.topbar-inner{
    max-width:1160px;margin:0 auto;
    display:flex;align-items:center;gap:18px;
    height:62px;padding:0 22px;
}
.aurora-brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{filter:drop-shadow(0 0 8px rgba(34,211,238,.45));transition:transform .25s,filter .25s}
.aurora-brand:hover .brand-mark{transform:rotate(-8deg) scale(1.06);filter:drop-shadow(0 0 14px rgba(34,211,238,.75))}
.brand-name{
    font-size:20px;font-weight:800;letter-spacing:1px;white-space:nowrap;
    background:var(--aurora-grad);
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.aurora-nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-left:auto}
.nav-link{
    color:var(--text-2);padding:8px 13px;border-radius:8px;font-size:15px;
    transition:all .2s;
}
.nav-link:hover{color:var(--text);background:var(--card-bg-hover)}
.nav-drop{position:relative}
.nav-drop .caret{font-weight:400;font-size:11px;opacity:.7}
.drop-menu{
    display:none;
    position:absolute;top:100%;left:0;min-width:180px;
    padding:8px;background:rgba(15,20,32,.96);
    border:1px solid var(--card-border);border-radius:10px;
    box-shadow:var(--shadow);backdrop-filter:blur(12px);
}
.nav-drop:hover .drop-menu{display:block}
.drop-menu a{display:block;padding:9px 14px;color:var(--text-2);font-size:14.5px;border-radius:8px}
.drop-menu a:hover{color:#67e8f9;background:var(--card-bg-hover)}
.topbar-search{flex-shrink:0}
.topbar-search input{
    width:200px;padding:9px 14px;font-size:14px;color:var(--text);
    background:var(--bg-2);border:1px solid var(--card-border);border-radius:8px;outline:none;
    transition:border-color .2s,width .25s;
}
.topbar-search input:focus{border-color:var(--aurora);width:240px}
.topbar-search input::placeholder,.side-search input::placeholder{color:var(--text-3);opacity:1}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--text-2);border-radius:2px;transition:all .2s}

/* ---------- 布局 ---------- */
.aurora-main{position:relative;z-index:1}
.aurora-container{max-width:1160px;margin:0 auto;padding:0 22px}
.aurora-container.layout{display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:26px;align-items:start}
.aurora-container.layout.no-sidebar{grid-template-columns:minmax(0,900px);justify-content:center}
.content-pane{min-width:0}
.aurora-sidebar{position:sticky;top:82px;display:flex;flex-direction:column;gap:16px}

/* ---------- 首页/列表 ---------- */
.home-hero{padding:46px 0 6px;text-align:center}
.home-hero h1{
    margin:0 0 8px;font-size:42px;font-weight:800;
    background:var(--aurora-grad);
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.home-hero p{margin:0;color:var(--text-2);font-size:16px}
.article-list{display:flex;flex-direction:column;gap:16px;padding:24px 0 36px}
.art-card{
    position:relative;overflow:hidden;
    padding:24px 26px;background:var(--card-bg);
    border:1px solid var(--card-border);border-radius:var(--radius);
    backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
    transition:all .25s;
}
.art-card::before{
    content:"";position:absolute;top:0;left:0;width:100%;height:2px;
    background:var(--aurora-grad);opacity:0;transition:opacity .25s;
}
.art-card:hover{
    background:var(--card-bg-hover);border-color:var(--card-border-strong);
    box-shadow:var(--shadow),var(--glow);transform:translateY(-3px);
}
.art-card:hover::before{opacity:1}
.art-title{margin:0 0 8px;font-size:22px}
.art-title a{color:var(--text);transition:color .2s}
.art-title a:hover{color:#67e8f9}
.art-excerpt{margin:0;color:var(--text-2);font-size:15.5px;line-height:1.75}
.art-meta{display:flex;gap:16px;flex-wrap:wrap;margin-top:14px;font-size:13.5px;color:var(--text-3)}
.art-meta .cat::before{content:"  /  "}
.art-meta .cmt::before,.art-meta .views::before{content:"  ·  "}
.none-msg{color:var(--text-3);text-align:center;padding:30px 0}

/* ---------- 首页 2.0：精选 Hero + 高密度文章流 ---------- */
.home-page{max-width:1380px;padding-top:30px}
.home-featured{
    position:relative;isolation:isolate;overflow:hidden;display:grid;
    grid-template-columns:minmax(0,1.45fr) minmax(360px,.75fr);gap:48px;align-items:center;
    min-height:300px;padding:38px 44px;margin-bottom:28px;
    background:linear-gradient(135deg,rgba(12,22,39,.92),rgba(13,17,28,.82));
    border:1px solid var(--card-border);border-radius:18px;box-shadow:var(--shadow);
}
.home-featured::before{content:"";position:absolute;z-index:-1;width:460px;height:460px;right:-160px;top:-230px;border-radius:50%;background:radial-gradient(circle,rgba(34,211,238,.23),transparent 68%)}
.home-featured::after{content:"";position:absolute;z-index:-1;inset:0;opacity:.22;background-image:linear-gradient(rgba(103,232,249,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(103,232,249,.1) 1px,transparent 1px);background-size:28px 28px;mask-image:linear-gradient(90deg,transparent 5%,#000 55%,#000)}
.hero-kicker{display:block;margin-bottom:10px;font:700 12px/1 var(--mono);letter-spacing:2.4px;color:var(--aurora)}
.home-featured h1{margin:0;font-size:48px;line-height:1.1;background:var(--aurora-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.home-featured-copy>p{max-width:680px;margin:12px 0 18px;color:var(--text-2);font-size:16.5px}
.hero-stats{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.hero-stats span{padding:7px 12px;color:var(--text-3);font-size:13px;background:rgba(255,255,255,.035);border:1px solid var(--card-border);border-radius:999px}
.hero-stats strong{margin-right:4px;color:var(--text);font-size:16px}
.featured-link{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:center;max-width:720px;padding:12px 14px;color:var(--text-2);background:rgba(7,11,20,.5);border:1px solid var(--card-border);border-radius:10px;transition:all .2s}
.featured-link span{padding:3px 8px;color:#041018;font-size:11px;font-weight:800;background:var(--aurora-grad);border-radius:999px}
.featured-link strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text);font-size:14px}
.featured-link em{font-style:normal;font-size:12px;color:var(--aurora)}
.featured-link:hover{border-color:var(--aurora);box-shadow:var(--glow);transform:translateY(-2px)}
.hero-terminal{overflow:hidden;background:#080d17;border:1px solid rgba(103,232,249,.18);border-radius:13px;box-shadow:0 20px 50px rgba(0,0,0,.34),0 0 32px rgba(34,211,238,.09);transform:rotate(1deg)}
.terminal-bar{height:36px;display:flex;align-items:center;gap:7px;padding:0 12px;background:#101827;border-bottom:1px solid rgba(255,255,255,.06)}
.terminal-bar i{width:9px;height:9px;border-radius:50%;background:#fb7185}.terminal-bar i:nth-child(2){background:#fbbf24}.terminal-bar i:nth-child(3){background:#34d399}
.terminal-bar span{margin-left:auto;color:#667085;font:11px var(--mono)}
.terminal-body{padding:18px 20px 20px;font:13px/1.65 var(--mono)}
.terminal-body p{margin:0}.terminal-body b{color:var(--aurora)}.terminal-output{padding-left:16px;color:#cbd5e1}.terminal-ok{padding-left:16px;color:#34d399}
.home-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}
.home-layout.no-sidebar{grid-template-columns:minmax(0,980px);justify-content:center}
.section-heading{display:flex;align-items:center;justify-content:space-between;margin:2px 0 14px;padding:0 2px}
.section-heading h2{margin:0;font-size:19px}.section-heading a{color:var(--text-3);font-size:13px}.section-heading a:hover{color:var(--aurora)}
.home-article-list{gap:13px;padding:0 0 28px}
.home-page .art-card{display:grid;grid-template-columns:minmax(0,1fr) 190px;min-height:148px;padding:0}
.home-page .art-content{min-width:0;padding:20px 24px}
.home-page .art-title{font-size:20px;line-height:1.4;margin-bottom:7px}
.home-page .art-title a{overflow-wrap:anywhere;word-break:break-word}
.home-page .art-excerpt{display:-webkit-box;overflow:hidden;-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:14.5px;line-height:1.65}
.home-page .art-meta{gap:11px;margin-top:11px;font-size:12.5px}
.art-thumb{position:relative;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:148px;border-left:1px solid var(--card-border);background:radial-gradient(circle at 70% 20%,rgba(34,211,238,.16),transparent 45%),linear-gradient(145deg,#111b2d,#0b111d);color:var(--aurora)}
.art-thumb img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;transition:transform .35s,filter .35s;filter:saturate(.86) brightness(.82)}
.art-card:hover .art-thumb img{transform:scale(1.05);filter:saturate(1) brightness(.95)}
.art-thumb span{font:700 29px/1 var(--mono);text-shadow:0 0 18px rgba(34,211,238,.55)}
.art-thumb small{margin-top:10px;color:var(--text-3);font:10px/1 var(--mono);letter-spacing:1.8px}
.home-layout>.aurora-sidebar{width:auto}
.side-cats.compact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
.side-cats.compact-grid a{min-width:0;padding:8px 9px;background:rgba(255,255,255,.018);border:1px solid transparent}
.side-cats.compact-grid a:hover{padding-left:9px;border-color:var(--card-border)}
.side-cats.compact-grid a span{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;white-space:normal;line-height:1.35}
.side-archive-fold{padding:0}
.side-archive-fold summary{margin:0;padding:17px 18px;list-style:none;cursor:pointer}
.side-archive-fold summary::-webkit-details-marker{display:none}
.side-archive-fold summary b{margin-left:auto;color:var(--text-3);font-size:11px;font-weight:500}
.side-archive-fold[open] summary b{font-size:0}.side-archive-fold[open] summary b::after{content:"收起";font-size:11px}
.side-archive-fold .side-archive{padding:0 10px 14px}

@media (max-width:1100px){
    .home-featured{grid-template-columns:minmax(0,1fr) 320px;gap:28px}
    .home-layout{grid-template-columns:minmax(0,1fr) 290px;gap:22px}
}
@media (max-width:900px){
    .home-featured{grid-template-columns:1fr;min-height:0;padding:32px}.hero-terminal{display:none}
    .home-layout{grid-template-columns:1fr}.home-layout>.aurora-sidebar{position:static}
}
@media (max-width:620px){
    .home-page{padding-top:18px}.home-featured{padding:25px 22px;margin-bottom:22px}.home-featured h1{font-size:36px}
    .featured-link{grid-template-columns:auto minmax(0,1fr)}.featured-link em{display:none}
    .home-page .art-card{grid-template-columns:minmax(0,1fr) 112px}.home-page .art-content{padding:17px 16px}
    .art-thumb{min-height:138px}.home-page .art-excerpt{display:none}.home-page .art-meta .cat{display:none}
    .side-cats.compact-grid{grid-template-columns:1fr 1fr}
}

/* ---------- 分页 ---------- */
.page-navigator{display:flex;gap:8px;justify-content:center;align-items:center;flex-wrap:wrap;margin:22px 0 44px}
.page-navigator span{min-width:38px;text-align:center}
.page-navigator a{
    display:inline-flex;align-items:center;justify-content:center;
    min-width:38px;height:38px;padding:0 12px;font-size:14.5px;color:var(--text-2);
    background:var(--card-bg);border:1px solid var(--card-border);border-radius:8px;
    transition:all .2s;
}
.page-navigator a:hover{color:#67e8f9;border-color:var(--aurora);box-shadow:var(--glow);transform:translateY(-2px)}
.page-navigator .current{pointer-events:none}
.page-navigator .current a{color:#041018;font-weight:700;background:var(--aurora-grad);border-color:transparent}
.page-navigator span span{color:var(--text-3);font-size:15px}

/* ---------- 文章页 ---------- */
.aurora-post{padding-top:34px}
/* 文章目录 TOC */
.post-toc{
    margin:14px 0 8px;padding:16px 20px;
    background:var(--card-bg);border:1px solid var(--card-border);
    border-radius:var(--radius);backdrop-filter:blur(8px);
}
.post-toc::before{
    content:"目录";
    display:inline-block;font-size:14px;font-weight:700;color:var(--text);
    letter-spacing:1px;margin-bottom:10px;
    border-left:3px solid var(--aurora);padding-left:9px;
}
.toc-list{list-style:none;margin:0;padding:0}
.toc-list a{display:block;color:var(--text-2);transition:color .2s,padding .2s}
.toc-list .toc-h2 a{padding:6px 0;font-size:15px;border-bottom:1px dashed rgba(255,255,255,.05)}
.toc-list .toc-h3 a{padding:5px 0 5px 20px;font-size:14px;color:var(--text-3)}
.toc-list a:hover{color:#67e8f9}
.toc-list a.active{color:var(--aurora);font-weight:600}
.toc-list .toc-h3 a.active{color:#67e8f9}
.side-toc .toc-wrap{max-height:400px;overflow-y:auto}
.side-toc .toc-list .toc-h2 a{border-bottom:none;padding:5px 0}
.post-head{padding:14px 0 4px}
.post-title{margin:0;font-size:31px;font-weight:700;line-height:1.35}
.post-meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px;font-size:13.5px;color:var(--text-3)}
.post-meta .cat::before{content:"  /  "}
.post-meta .cmt::before{content:"  ·  "}
.post-body{padding:12px 0 30px;position:relative}
.post-body p{margin:1.08em 0}
.post-body a{color:var(--aurora);border-bottom:1px solid rgba(34,211,238,.3)}
.post-body a:hover{color:#67e8f9;border-bottom-color:#67e8f9}
.post-body img{max-width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--card-border);display:block;margin:1.6em auto;box-shadow:var(--shadow)}
.post-body h1,.post-body h2,.post-body h3,.post-body h4{margin:1.8em 0 .75em;padding-left:15px;position:relative;border-left:4px solid var(--aurora)}
.post-body h1{font-size:27px}.post-body h2{font-size:23px}.post-body h3{font-size:19px}.post-body h4{font-size:16.5px}
.post-body ul,.post-body ol{padding-left:1.35em}
.post-body li{margin:.5em 0}
.post-body blockquote{
    margin:1.6em 0;padding:13px 18px;background:rgba(34,211,238,.05);
    border-left:4px solid var(--aurora);border-radius:0 8px 8px 0;color:var(--text-2);
}
.post-body blockquote p{margin:.4em 0}

/* 代码块（高亮 + 头部） */
.post-body pre{
    position:relative;margin:1.6em 0;padding:1.15em 1.3em;
    background:var(--code-bg);border:1px solid var(--card-border);border-radius:var(--radius);
    overflow-x:auto;font-family:var(--mono);font-size:14px;line-height:1.7;color:#d6deeb;
    box-shadow:inset 0 0 20px rgba(0,0,0,.4);
}
.post-body pre::before{display:none}
.post-body code{font-family:var(--mono);background:rgba(34,211,238,.12);color:#9be9ff;padding:2px 6px;border-radius:4px;font-size:.9em}
.post-body pre code{background:transparent;color:inherit;padding:0;border-radius:0}
.post-body .code-head{
    display:flex;justify-content:space-between;align-items:center;gap:10px;
    padding:7px 14px;margin:-1.15em -1.3em 1.2em;
    border-bottom:1px solid var(--card-border);border-radius:var(--radius) var(--radius) 0 0;
    background:rgba(255,255,255,.04);font-family:var(--font);
}
.post-body .code-lang{font-size:12px;font-weight:600;letter-spacing:1px;color:#67e8f9;text-transform:uppercase}
.post-body .code-lang::before{
    content:"";display:inline-block;width:8px;height:8px;margin-right:8px;border-radius:50%;
    background:var(--aurora);box-shadow:0 0 8px rgba(34,211,238,.8);vertical-align:middle;
}
.post-body .code-copy{
    padding:4px 12px;font-size:12px;font-weight:600;color:var(--text-2);
    background:var(--bg-2);border:1px solid var(--card-border);border-radius:8px;cursor:pointer;transition:all .2s;
}
.post-body .code-copy:hover{color:#67e8f9;border-color:var(--aurora)}
.post-body .code-copy.ok{color:#fff;background:var(--aurora-grad);border-color:transparent}

/* 阅读进度条（文章页，固定于顶栏下沿，滚动变长） */
#read-progress{position:fixed;top:62px;left:0;height:4px;width:0;background:var(--aurora-grad);z-index:10001;transition:width .08s linear;box-shadow:0 0 14px rgba(34,211,238,.7),0 0 4px rgba(34,211,238,.9)}
@media (max-width:768px){#read-progress{top:56px}}

/* 代码块：行号 + 长代码折叠 */
.post-body pre.code-lines{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:auto auto;align-items:stretch;padding:0;overflow:hidden}
.post-body pre.code-lines .code-head{grid-column:1/-1;grid-row:1;margin:0;border-radius:var(--radius) var(--radius) 0 0}
.post-body pre.code-lines .line-nums{
    grid-column:1;grid-row:2;min-width:46px;padding:1.15em 10px 1.15em 0;text-align:right;
    color:var(--text-3);font-family:var(--mono);font-size:13px;line-height:1.7;
    border-right:1px solid rgba(255,255,255,.05);user-select:none;background:rgba(255,255,255,.02);
}
.post-body pre .line-nums span{display:block}
.post-body pre.code-lines code{grid-column:2;grid-row:2;min-width:0;overflow-x:auto;padding:1.15em 1.3em}
.post-body pre.code-collapsed{max-height:460px;overflow:hidden;position:relative}
.post-body pre.code-collapsed::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:80px;
    background:linear-gradient(rgba(13,17,23,0),var(--code-bg));pointer-events:none;
}
.post-body .code-fold{margin-left:auto;padding:4px 12px;font-size:12px;font-weight:600;color:#67e8f9;background:var(--bg-2);border:1px solid var(--card-border);border-radius:8px;cursor:pointer;transition:all .2s}
.post-body .code-fold:hover{color:var(--text);border-color:var(--aurora)}

/* 表格 */
.post-body table{width:100%;margin:1.6em 0;border-collapse:collapse;font-size:15px;overflow:hidden;border-radius:var(--radius);border:1px solid var(--card-border)}
.post-body th{background:rgba(34,211,238,.08);color:var(--text);padding:11px 14px;text-align:left;font-weight:600}
.post-body td{padding:10px 14px;color:var(--text-2);border-top:1px solid var(--card-border)}
.post-body tr:hover td{background:rgba(255,255,255,.03)}

/* 标签、上下篇、作者 */
.post-tags{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 20px}
.post-tags a{
    padding:6px 14px;font-size:13.5px;color:var(--text-2);
    background:var(--card-bg);border:1px solid var(--card-border);border-radius:999px;transition:all .2s;
}
.post-tags a:hover{color:#67e8f9;border-color:var(--aurora);box-shadow:var(--glow)}
.post-nav{
    display:flex;justify-content:space-between;gap:12px;margin:4px 0 24px;
}
.post-nav span{
    flex:1;list-style:none;padding:13px 16px;background:var(--card-bg);
    border:1px solid var(--card-border);border-radius:var(--radius);font-size:14px;transition:all .2s;
}
.post-nav span:hover{background:var(--card-bg-hover);border-color:var(--card-border-strong)}
.post-nav a{color:var(--text-2)}
.post-nav a:hover{color:#67e8f9}
.post-nav .next{text-align:right}
.post-author{
    margin:8px 0 24px;padding:18px 20px;display:flex;gap:15px;align-items:center;
    background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius);
}
.post-author img{width:52px;height:52px;border-radius:50%;border:1px solid var(--aurora);box-shadow:var(--glow);object-fit:cover}
.post-author b{color:var(--text);display:block}
.post-author span{color:var(--text-3);font-size:14px}

/* ---------- 评论 ---------- */
.comment-block{padding:12px 0 20px}
.block-title{font-size:19px;margin:0 0 16px;color:var(--text)}
.comments-off{color:var(--text-3);text-align:center;padding:14px 0;border:1px dashed var(--card-border);border-radius:var(--radius)}
.comment-list{display:flex;flex-direction:column;gap:13px}
.comment-single{padding:16px 18px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius)}
.comment-single .comment-content{color:var(--text-2);font-size:15px;line-height:1.7;margin:0}
.comment-form{margin-top:24px;padding:20px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius)}
.comment-form fieldset{border:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:12px}
.comment-form input{
    flex:1;min-width:180px;padding:11px 13px;font-size:15px;color:var(--text);
    background:var(--bg-2);border:1px solid var(--card-border);border-radius:8px;outline:none;
}
.comment-form textarea{
    width:100%;margin-top:12px;padding:11px 13px;font-size:15px;color:var(--text);
    background:var(--bg-2);border:1px solid var(--card-border);border-radius:8px;outline:none;resize:vertical;font-family:var(--font);
}
.comment-form input:focus,.comment-form textarea:focus{border-color:var(--aurora)}
.btn-primary{
    margin-top:12px;padding:11px 24px;color:#041018;font-weight:600;border:none;border-radius:8px;cursor:pointer;
    background:var(--aurora-grad);transition:all .2s;
}
.btn-primary:hover{filter:brightness(1.1);box-shadow:var(--glow)}

/* ---------- 侧栏 ---------- */
.side-box{
    padding:18px 18px;background:var(--card-bg);border:1px solid var(--card-border);
    border-radius:var(--radius);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:border-color .2s;
}
.side-box:hover{border-color:var(--card-border-strong)}
.side-title{
    display:flex;align-items:center;gap:8px;margin:0 0 13px;font-size:15px;font-weight:700;color:var(--text);letter-spacing:.4px;
}
.side-title::after{content:"";flex:1;height:1px;background:var(--card-border)}
.side-title i{font-style:normal;color:var(--aurora)}
.side-search input{
    width:100%;padding:10px 12px;font-size:14px;color:var(--text);
    background:var(--bg-2);border:1px solid var(--card-border);border-radius:8px;outline:none;
}
.side-search input:focus{border-color:var(--aurora)}
.side-cats,.side-archive{list-style:none;margin:0;padding:0}
.side-cats a,.side-archive a{
    display:flex;justify-content:space-between;align-items:center;gap:10px;
    padding:9px 12px;border-radius:8px;color:var(--text-2);font-size:14.5px;transition:all .2s;
}
.side-cats a:hover,.side-archive a:hover{color:#67e8f9;background:var(--card-bg-hover);padding-left:16px}
.side-cats em{font-style:normal;font-size:12px;color:var(--text-3);background:var(--bg-2);border:1px solid var(--card-border);border-radius:999px;padding:0 8px;min-width:24px;text-align:center}
.side-hot{margin:0;padding:0;list-style:none;counter-reset:hot}
.side-hot li{counter-increment:hot;margin:0}
.side-hot a{
    display:flex;align-items:baseline;gap:10px;padding:9px 4px;color:var(--text-2);font-size:14px;line-height:1.5;
    border-bottom:1px solid var(--card-border);transition:color .2s;
}
.side-hot li:last-child a{border-bottom:none}
.side-hot a::before{
    content:counter(hot);font-size:12px;font-weight:700;color:var(--text-3);
    background:var(--bg-2);border:1px solid var(--card-border);border-radius:6px;min-width:26px;text-align:center;line-height:20px;flex-shrink:0;
}
.side-hot li:first-child a::before{color:#041018;background:var(--aurora-grad);border-color:transparent}
.side-hot a:hover{color:#67e8f9}
.side-tags{display:flex;flex-wrap:wrap;gap:10px;align-items:baseline}
.side-tags a{
    display:inline-block;padding:3px 12px;color:var(--text-2);background:var(--bg-2);
    border:1px solid var(--card-border);border-radius:999px;line-height:1.6;transition:all .2s;
}
.side-tags a:hover{color:#67e8f9;border-color:var(--aurora);box-shadow:var(--glow)}

/* ---------- 友链 ---------- */
.aurora-links{list-style:none;margin:24px 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.aurora-links li{
    list-style:none;margin:0;padding:22px 12px;background:var(--card-bg);border:1px solid var(--card-border);
    border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
    backdrop-filter:blur(8px);transition:box-shadow .2s,border-color .2s,transform .2s;
}
.aurora-links li:hover{box-shadow:var(--shadow),var(--glow);border-color:var(--aurora);transform:translateY(-3px)}
.aurora-links a{display:flex;flex-direction:column;align-items:center;gap:10px;text-decoration:none;width:100%;color:var(--text-2)}
.aurora-links img{width:40px;height:40px;border-radius:8px;object-fit:contain;filter:drop-shadow(0 0 6px rgba(34,211,238,.25))}
.aurora-links span{font-size:14.5px;color:var(--text)}

/* ---------- 页脚 ---------- */
.aurora-footer{position:relative;z-index:1;margin-top:34px;border-top:1px solid var(--card-border);background:rgba(7,11,20,.5);backdrop-filter:blur(8px)}
.footer-inner{max-width:1160px;margin:0 auto;padding:24px 22px 26px;text-align:center}
.footer-brand{color:var(--text);font-size:15px;margin:0 0 8px}
.footer-brand .dot{color:var(--aurora)}
.footer-meta{color:var(--text-3);font-size:13px;margin:6px 0}
.footer-meta a{color:var(--text-2)}
.footer-meta a:hover{color:#67e8f9}
.footer-beian{color:var(--text-3);font-size:13px;margin:10px 0 0}
.footer-beian a{color:var(--text-2)}
.footer-beian .police-beian-logo{display:inline-block;width:20px;height:20px;margin:0 4px 0 2px;vertical-align:-5px;object-fit:contain}
.footer-beian a:hover{color:#67e8f9}
.heart{color:#f472b6}
.to-top{
    position:fixed;right:26px;bottom:26px;width:46px;height:46px;border:none;cursor:pointer;border-radius:50%;
    background:var(--aurora-grad);color:#041018;font-size:18px;box-shadow:var(--shadow);transition:all .2s;z-index:50;
}
.to-top:hover{transform:translateY(-4px);box-shadow:var(--glow)}

/* ---------- 404 ---------- */
.err-page{text-align:center;padding:70px 0 90px}
.err-code{font-size:88px;margin:0;background:var(--aurora-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;line-height:1}
.err-text{color:var(--text-2);margin:16px 0 26px}
.btn-back{display:inline-block;padding:11px 26px;color:#041018;font-weight:600;border-radius:8px;background:var(--aurora-grad)}
.btn-back:hover{filter:brightness(1.1);box-shadow:var(--glow)}

/* ---------- 响应式 ---------- */
@media (max-width:768px){
    .aurora-container.layout{grid-template-columns:1fr;gap:22px}
    .aurora-sidebar{position:static;flex-direction:row;flex-wrap:wrap}
    .side-box{flex:1 1 100%}
}
@media (max-width:768px){
    body{font-size:15.5px}
    .topbar-inner{padding:0 14px;height:56px}
    .brand-name{font-size:17px}
    .aurora-nav{display:none;position:absolute;top:56px;left:0;right:0;flex-direction:column;align-items:stretch;background:rgba(11,16,28,.97);border-bottom:1px solid var(--card-border);padding:10px}
    .aurora-nav.open{display:flex}
    .nav-link{padding:11px 16px}
    .nav-toggle{display:flex;margin-left:auto}
    .topbar-search input{width:120px}
    .topbar-search input:focus{width:150px}
    .home-hero h1{font-size:31px}
    .aurora-container{padding:0 16px}
    .post-title{font-size:25px}
    .post-nav span{width:100%;text-align:center}
    .post-nav .next{text-align:center}
}

/* ============ 亮色主题（data-theme="light"）============ */
:root[data-theme="light"]{
    --bg-0:#eef2f7;--bg-1:#ffffff;--bg-2:#f4f6fa;
    --card-bg:rgba(255,255,255,.7);--card-bg-hover:rgba(255,255,255,.95);
    --card-border:rgba(15,30,60,.12);--card-border-strong:rgba(15,30,60,.2);
    --text:#1b2a41;--text-2:#4a5a72;--text-3:#8a97ab;--code-bg:#f6f8fa;
    --shadow:0 8px 30px rgba(30,50,90,.12);--glow:0 0 22px rgba(34,211,238,.18);
}
:root[data-theme="light"] body{
    background:
        radial-gradient(900px 500px at 12% -8%, rgba(34,211,238,.12), transparent 60%),
        radial-gradient(800px 480px at 95% 0%, rgba(129,140,248,.10), transparent 55%),
        linear-gradient(180deg,#ffffff,#eef2f7);
}
:root[data-theme="light"] .aurora-nav{background:rgba(255,255,255,.97)}
:root[data-theme="light"] .aurora-nav.open{background:#fff}
:root[data-theme="light"] .post-body pre{box-shadow:inset 0 0 12px rgba(0,0,0,.05)}
:root[data-theme="light"] .aurora-lightbox{background:rgba(20,28,45,.92)}
:root[data-theme="light"] .home-featured{border-color:rgba(103,232,249,.24)}
:root[data-theme="light"] .home-featured-copy>p{color:#cbd5e1}
:root[data-theme="light"] .hero-stats span{color:#b6c2d2;background:rgba(255,255,255,.055);border-color:rgba(255,255,255,.12)}
:root[data-theme="light"] .hero-stats strong{color:#f1f5f9}
:root[data-theme="light"] .featured-link{color:#aebbcf;border-color:rgba(255,255,255,.13)}
:root[data-theme="light"] .featured-link strong{color:#e7edf5}
:root[data-theme="light"] .home-page .art-meta{color:#667085}
:root[data-theme="light"] .section-heading a{color:#667085}

@media (max-width:360px){
    .home-page .art-card{grid-template-columns:minmax(0,1fr) 96px}
    .home-page .art-title{font-size:17px}
    .hero-stats span{padding:6px 9px}
}

/* 主题切换按钮 */
.theme-toggle{
    flex:0 0 auto;width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
    font-size:16px;line-height:1;border:1px solid var(--card-border);border-radius:8px;
    background:var(--bg-2);color:var(--text);cursor:pointer;transition:all .2s;margin-left:8px;
}
.theme-toggle:hover{border-color:var(--aurora);box-shadow:var(--glow)}
@media (max-width:768px){.theme-toggle{margin-left:0}}
@media (max-width:480px){
    .topbar-search{display:none}
    .theme-toggle{width:40px;height:40px}
    .nav-toggle{min-width:40px;min-height:40px;align-items:center;justify-content:center;padding:7px}
    ::-webkit-scrollbar{width:4px;height:4px}
}

/* 图片灯箱 */
.aurora-lightbox{
    position:fixed;inset:0;z-index:10000;background:rgba(7,11,20,.92);
    display:flex;align-items:center;justify-content:center;padding:30px;cursor:zoom-out;animation:lb-in .2s ease;
}
.aurora-lightbox .lightbox-img{max-width:92vw;max-height:92vh;object-fit:contain;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.6)}
@keyframes lb-in{from{opacity:0}to{opacity:1}}

/* ============ 路线图 1.2–1.4：内容、SEO 入口与互动 ============ */
.nav-rss{font-weight:700;color:#f59e0b}
.post-breadcrumb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:30px 0 0;font-size:13px;color:var(--text-3)}
.post-breadcrumb a{color:var(--text-2)}
.post-breadcrumb [aria-current="page"]{max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-meta .views::before,.post-meta #post-reading-meta::before{content:" · ";margin-right:10px}
.related-posts{margin:12px 0 24px;padding:20px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius)}
.related-posts h2{margin:0 0 14px;font-size:19px}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.related-grid a{display:flex;flex-direction:column;gap:6px;padding:13px 14px;color:var(--text-2);background:var(--bg-2);border:1px solid var(--card-border);border-radius:9px;transition:all .2s}
.related-grid a:hover{border-color:var(--aurora);transform:translateY(-2px);box-shadow:var(--glow)}
.related-grid strong{color:var(--text);font-size:14.5px;line-height:1.5}
.related-grid time{color:var(--text-3);font-size:12px}
.post-reactions{display:flex;gap:10px;flex-wrap:wrap;margin:8px 0 20px}
.post-reactions button{padding:8px 16px;color:var(--text-2);background:var(--card-bg);border:1px solid var(--card-border);border-radius:999px;cursor:pointer;transition:all .2s;font-family:var(--font)}
.post-reactions button:hover,.post-reactions button.active{color:#67e8f9;border-color:var(--aurora);box-shadow:var(--glow)}
.post-reward{margin:8px 0 24px;padding:14px 18px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius);text-align:center}
.post-reward summary{cursor:pointer;color:var(--aurora);font-weight:600}
.post-reward img{display:block;max-width:240px;max-height:320px;margin:16px auto 4px;border-radius:10px;border:1px solid var(--card-border)}
.third-party-comments{margin-top:22px}
.side-tags a{color:rgba(34,211,238,var(--tag-heat,.65))}
.side-tags a:hover{color:#67e8f9}
@media (max-width:768px){
    .related-grid{grid-template-columns:1fr}
    .post-breadcrumb{margin-top:20px}
    .post-meta #post-reading-meta{width:100%}
    .post-meta #post-reading-meta::before{display:none}
}