/* ============================================
   Aurora 4.0 — Premium Design Language
   Inspired by Apple · Thyuu · Halosb
   ============================================ */

:root {
  --bg: #f5f5f7;
  --bg-alt: #e8e8ed;
  --bg-card: #ffffff;
  --bg-glass: rgba(245,245,247,0.72);
  --text: #1d1d1f;
  --text-soft: #86868b;
  --text-faint: #aeaeb2;
  --line: rgba(0,0,0,0.06);
  --line-strong: rgba(0,0,0,0.12);
  --pri: #d4a574;
  --pri-soft: rgba(212,165,116,0.12);
  --pri-glow: rgba(212,165,116,0.06);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.02);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.06);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --max-w: 700px;
  --max-wide: 1040px;
  --nav-h: 52px;
}

[data-theme="dark"] {
  --bg: #0a0a0c;
  --bg-alt: #151517;
  --bg-card: #1c1c1e;
  --bg-glass: rgba(10,10,12,0.78);
  --text: #f5f5f7;
  --text-soft: #98989d;
  --text-faint: #636366;
  --line: rgba(255,255,255,0.06);
  --line-strong: rgba(255,255,255,0.10);
  --pri: #d4a574;
  --pri-soft: rgba(212,165,116,0.10);
  --pri-glow: rgba(212,165,116,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.4);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg);color:var(--text);line-height:1.7;
  min-height:100vh;overflow-x:hidden;
  transition:background .35s ease,color .35s ease;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:var(--pri);color:#fff}

/* ===== NAV — floating glass ===== */
.nv{
  position:fixed;top:12px;left:50%;transform:translateX(-50%);
  z-index:1000;width:calc(100% - 32px);max-width:720px;
  background:var(--bg-glass);
  backdrop-filter:blur(24px) saturate(1.4);
  -webkit-backdrop-filter:blur(24px) saturate(1.4);
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  transition:background .35s,border-color .3s,transform .3s;
}
.nv-inner{display:flex;align-items:center;justify-content:space-between;height:44px;padding:0 20px}
.nv-logo{font-weight:600;font-size:.9rem;letter-spacing:-.01em}
.nv-menu{display:flex;align-items:center;gap:18px}
.nv-menu a{font-size:.82rem;color:var(--text-soft);transition:color .2s;position:relative;padding:2px 0}
.nv-menu a::after{
  content:'';position:absolute;bottom:-2px;left:0;width:0;height:1.5px;
  background:var(--pri);transition:width .3s ease;border-radius:1px;
}
.nv-menu a:hover{color:var(--text)}
.nv-menu a:hover::after{width:100%}

.nv-theme{
  display:flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:8px;color:var(--text-soft);
  transition:all .2s;
}
.nv-theme:hover{background:var(--pri-soft);color:var(--pri)}
[data-theme="dark"] .icon-sun{display:block}
[data-theme="dark"] .icon-moon{display:none}
[data-theme="light"] .icon-sun{display:none}
[data-theme="light"] .icon-moon{display:block}

.nv-toggle{display:none;flex-direction:column;gap:5px;padding:4px}
.nv-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:all .25s}
.nv-toggle.active span:first-child{transform:rotate(45deg)translateY(5px)}
.nv-toggle.active span:last-child{transform:rotate(-45deg)translateY(-5px)}

@media(max-width:640px){
  .nv{top:8px;width:calc(100% - 16px)}
  .nv-toggle{display:flex}
  .nv-menu{position:fixed;top:56px;left:16px;right:16px;flex-direction:column;gap:12px;background:var(--bg-glass);backdrop-filter:blur(24px);border:1px solid var(--line);border-radius:var(--radius-md);padding:16px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:all .25s}
  .nv-menu.open{transform:translateY(0);opacity:1;pointer-events:auto}
}

/* ===== HERO ===== */
.hero{
  padding:140px 24px 80px;text-align:center;position:relative;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;top:-40%;left:50%;transform:translateX(-50%);
  width:700px;height:700px;
  background:radial-gradient(circle,var(--pri-soft) 0%,transparent 60%);
  pointer-events:none;
}
.hero-hl{position:relative}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 14px;background:var(--pri-soft);border-radius:100px;
  font-size:.75rem;color:var(--pri);font-weight:500;margin-bottom:24px;
}
.hero-badge-dot{width:4px;height:4px;border-radius:50%;background:var(--pri);animation:pulse-dot 2s ease-in-out infinite}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:.4}}
.hero-title{
  font-family:'Playfair Display',serif;
  font-size:clamp(2.5rem,7vw,4.5rem);font-weight:700;
  line-height:1.08;letter-spacing:-.025em;margin-bottom:16px;
}
.hero-desc{font-size:1.1rem;color:var(--text-soft);line-height:1.6;max-width:480px;margin:0 auto}

/* ===== ENTRIES ===== */
.entries{max-width:var(--max-wide);margin:0 auto;padding:0 24px 60px}
.entry{
  display:flex;gap:24px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
  transition:border-color .25s;
}
.entry:first-child{border-top:1px solid var(--line)}
.entry:hover{border-color:var(--line-strong)}
.entry-cover{
  flex-shrink:0;width:160px;height:110px;
  border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-alt);
}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry:hover .entry-cover img{transform:scale(1.04)}
.entry-cover.pc{display:flex;align-items:center;justify-content:center;color:var(--text-faint);font-family:'Playfair Display',serif;font-size:1.8rem}
.entry-body{flex:1;min-width:0}
.entry-date{font-size:.75rem;color:var(--text-faint);font-weight:500;letter-spacing:.03em;text-transform:uppercase}
.entry-title{
  font-size:1.15rem;font-weight:600;line-height:1.35;margin:4px 0 8px;
  transition:color .2s;
}
.entry:hover .entry-title{color:var(--pri)}
.entry-excerpt{font-size:.88rem;color:var(--text-soft);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-meta{display:flex;align-items:center;gap:8px;margin-top:8px}
.entry-cat{font-size:.72rem;padding:2px 10px;border:1px solid var(--line);border-radius:100px;color:var(--pri)}

@media(max-width:640px){
  .entry{flex-direction:column;gap:12px}
  .entry-cover{width:100%;height:180px}
}

/* ===== PAGER ===== */
.pager{max-width:var(--max-wide);margin:0 auto;padding:32px 24px 60px;display:flex;align-items:center;justify-content:space-between}
.pager-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 16px;border:1px solid var(--line);border-radius:100px;
  font-size:.82rem;color:var(--text-soft);transition:all .2s;
}
.pager-btn:hover{border-color:var(--pri);color:var(--pri);background:var(--pri-soft)}
.pager-info{font-size:.8rem;color:var(--text-faint)}

/* ===== POST ARTICLE ===== */
.post-h{
  padding:100px 24px 40px;
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  text-align:center;
}
.post-h-inner{max-width:var(--max-w);margin:0 auto}
.post-back{font-size:.82rem;color:var(--text-soft);display:inline-block;margin-bottom:20px;transition:color .2s}
.post-back:hover{color:var(--pri)}
.post-title{
  font-family:'Playfair Display',serif;
  font-size:clamp(1.6rem,3.5vw,2.6rem);font-weight:700;
  line-height:1.15;letter-spacing:-.015em;margin-bottom:14px;
}
.post-meta{font-size:.82rem;color:var(--text-faint);display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.post-cat{color:var(--pri)}

/* ===== 三栏文章布局 ===== */
.post-layout{
  display:grid;
  grid-template-columns:200px minmax(0,var(--max-w)) 200px;
  gap:32px;justify-content:center;
  padding:48px 24px 0;
  max-width:calc(var(--max-w) + 464px);
  margin:0 auto;
}
.post-main{min-width:0}
.post-body{padding:0}
.post-nav{margin-top:48px}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding-top:32px;border-top:1px solid var(--line)}
.pn{padding:16px;border:1px solid var(--line);border-radius:var(--radius-sm);transition:all .25s}
.pn:hover{border-color:var(--pri);background:var(--pri-soft)}
.pn.next{text-align:right}
.pn-label{font-size:.75rem;color:var(--text-faint)}
.pn-title{font-size:.9rem;display:block;margin-top:4px;transition:color .2s}
.pn:hover .pn-title{color:var(--pri)}
.post-comments{padding-top:48px}

/* 文章侧边栏 */
.post-side{position:relative}
.side-sticky{position:sticky;top:80px}
.side-title{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);margin-bottom:12px}

/* 目录 */
.toc-nav{font-size:.8rem}
.toc-nav a{display:block;padding:5px 0;color:var(--text-soft);transition:color .2s;border-left:1px solid transparent;padding-left:10px}
.toc-nav a:hover,.toc-nav a.active{color:var(--pri);border-left-color:var(--pri)}
.toc-nav a.toc-h3{padding-left:22px;font-size:.75rem}

/* 作者卡片 */
.side-author{text-align:center;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.side-author-avatar{width:52px;height:52px;border-radius:50%;background:var(--pri-soft);color:var(--pri);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin:0 auto 10px}
.side-author-name{font-weight:600;font-size:.9rem}
.side-author-bio{font-size:.78rem;color:var(--text-soft);margin-top:4px}
.side-author-social{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:10px}
.side-author-social a{font-size:.72rem;color:var(--text-faint);padding:2px 8px;border:1px solid var(--line);border-radius:100px;transition:all .2s}
.side-author-social a:hover{border-color:var(--pri);color:var(--pri)}

/* 文章底部标签 */
.post-tags{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:32px;padding-top:20px;border-top:1px solid var(--line)}
.post-tags-label{font-size:.85rem;color:var(--text-faint)}
.post-tag{padding:4px 14px;border:1px solid var(--line);border-radius:100px;font-size:.8rem;color:var(--text-soft);transition:all .2s}
.post-tag:hover{border-color:var(--pri);color:var(--pri)}

/* 侧边统计+快捷链接 */
.side-stats{margin-bottom:28px}
.side-stat{display:flex;align-items:baseline;gap:6px}
.side-stat-num{font-family:'Playfair Display',serif;font-size:1.6rem;font-weight:600;color:var(--text)}
.side-stat-label{font-size:.75rem;color:var(--text-faint)}
.side-quick{display:flex;flex-direction:column;gap:6px}
.side-quick a{font-size:.8rem;color:var(--text-soft);transition:color .2s}
.side-quick a:hover{color:var(--pri)}

/* 侧边标签 */
.side-tags{display:flex;flex-wrap:wrap;gap:6px}
.side-tag{padding:3px 10px;border:1px solid var(--line);border-radius:100px;font-size:.75rem;color:var(--text-soft);transition:all .2s}
.side-tag:hover{border-color:var(--pri);color:var(--pri)}
.side-tag.empty{color:var(--text-faint);pointer-events:none}

@media(max-width:1200px){
  .post-layout{grid-template-columns:180px minmax(0,var(--max-w))}
  .post-side-right{display:none}
}
@media(max-width:900px){
  .post-layout{grid-template-columns:1fr;max-width:var(--max-w)}
  .post-side-left{display:none}
}

/* ===== TYPOGRAFIA ===== */
.tp{font-size:1rem;line-height:1.9;color:var(--text)}
.tp p{margin-bottom:1.4em}
.tp h1,.tp h2,.tp h3,.tp h4{
  font-family:'Playfair Display',serif;font-weight:600;line-height:1.25;margin:2em 0 .5em;
}
.tp h1{font-size:1.7rem}
.tp h2{font-size:1.4rem}
.tp h3{font-size:1.2rem}
.tp a{color:var(--pri);border-bottom:1px solid transparent;transition:border-color .2s}
.tp a:hover{border-bottom-color:var(--pri)}
.tp blockquote{
  margin:1.4em 0;padding:12px 20px;border-left:2px solid var(--pri);
  color:var(--text-soft);font-style:italic;background:var(--pri-soft);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}
.tp pre{
  margin:1.4em 0;padding:16px 20px;background:var(--bg-alt);
  border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow-x:auto;font-family:'JetBrains Mono',monospace;font-size:.85rem;line-height:1.6;
}
.tp code{font-family:'JetBrains Mono',monospace;font-size:.85em;padding:2px 6px;background:var(--bg-alt);border-radius:4px}
.tp pre code{padding:0;background:none}
.tp img{margin:1.4em auto;border-radius:var(--radius-sm);cursor:zoom-in;transition:transform .3s}
.tp img:hover{transform:scale(1.005)}
.tp hr{margin:2em 0;border:none;height:1px;background:var(--line)}
.tp ul,.tp ol{margin:1em 0;padding-left:1.5em}
.tp ul{list-style:disc}
.tp ol{list-style:decimal}
.tp li{margin-bottom:.4em}
.tp table{width:100%;border-collapse:collapse;margin:1.4em 0}
.tp th,.tp td{padding:8px 12px;border:1px solid var(--line);text-align:left}
.tp th{background:var(--bg-alt);font-weight:600}

/* ===== LISt HEADERS ===== */
.lh{text-align:center;padding:100px 24px 40px}
.lh-badge{display:inline-block;padding:4px 14px;background:var(--pri-soft);border-radius:100px;font-size:.75rem;color:var(--pri);font-weight:500;margin-bottom:16px}
.lh-title{font-family:'Playfair Display',serif;font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:600}
.lh-count{font-size:.85rem;color:var(--text-soft);margin-top:6px}

.tags-w{max-width:500px;margin:-10px auto 60px;padding:0 24px;display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.tag-it{
  padding:6px 16px;border:1px solid var(--line);border-radius:100px;
  font-size:.85rem;color:var(--text-soft);transition:all .2s;
}
.tag-it:hover{border-color:var(--pri);color:var(--pri);background:var(--pri-soft)}

.cats-w{max-width:480px;margin:0 auto 60px;padding:0 24px;display:flex;flex-direction:column;gap:8px}
.cat-it{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .2s;
}
.cat-it:hover{border-color:var(--pri)}
.cat-name{font-weight:500;font-size:.95rem}
.cat-count{font-size:.78rem;color:var(--text-faint);padding:2px 8px;background:var(--bg-alt);border-radius:100px}

.archives{max-width:var(--max-w);margin:0 auto;padding:0 24px 60px}
.arch-yr{margin-bottom:36px}
.arch-yr-title{font-family:'Playfair Display',serif;font-size:1.5rem;font-weight:600;color:var(--pri);margin-bottom:12px;padding-left:12px;border-left:2px solid var(--pri)}
.arch-mo{font-size:.82rem;color:var(--text-soft);margin-bottom:6px;padding-left:20px}
.arch-post{display:flex;align-items:baseline;gap:10px;padding:4px 0 4px 20px}
.arch-dt{font-family:'JetBrains Mono',monospace;font-size:.72rem;color:var(--text-faint);min-width:34px}
.arch-tl{font-size:.88rem;transition:color .2s}
.arch-tl:hover{color:var(--pri)}

/* ===== 404 ===== */
.e404{
  position:relative;min-height:80vh;display:flex;align-items:center;justify-content:center;
  padding:100px 24px;overflow:hidden;
}
.e404-bg{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  gap:20px;pointer-events:none;user-select:none;
}
.e404-bg-digit{
  font-family:'Playfair Display',serif;
  font-size:clamp(16rem,40vw,36rem);font-weight:700;line-height:1;
  color:var(--line);opacity:.5;transform:translateY(0);
}
.e404-bg-digit.zero{color:var(--pri-soft);opacity:.3}
.e404-body{position:relative;text-align:center;z-index:1}
.e404-code{
  font-family:'Playfair Display',serif;
  font-size:clamp(3.5rem,8vw,6rem);font-weight:700;line-height:1;margin-bottom:20px;
  letter-spacing:-.03em;
}
.e404-zero{color:var(--pri)}
.e404-title{font-size:1.3rem;font-weight:600;margin-bottom:8px}
.e404-desc{color:var(--text-soft);margin-bottom:32px;font-size:.95rem}
.e404-actions{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}
.e404-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 24px;border:1px solid var(--line);border-radius:100px;
  font-size:.85rem;font-weight:500;color:var(--text-soft);
  transition:all .25s;
}
.e404-btn:hover{border-color:var(--pri);color:var(--pri);background:var(--pri-soft)}
.e404-btn.primary{background:var(--pri);color:#fff;border-color:var(--pri)}
.e404-btn.primary:hover{background:var(--pri);opacity:.85}

/* ===== FOOTER ===== */
.ft{
  border-top:1px solid var(--line);
  padding:40px 24px 32px;
}
.ft-inner{max-width:var(--max-wide);margin:0 auto}
.ft-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:28px}
.ft-name{font-weight:600;font-size:1rem}
.ft-desc{font-size:.82rem;color:var(--text-soft);margin-top:2px}
.ft-author{display:flex;align-items:center;gap:6px;margin-top:10px}
.ft-author-label{font-size:.7rem;padding:1px 8px;border:1px solid var(--line);border-radius:100px;color:var(--text-faint);text-transform:uppercase;letter-spacing:.02em}
.ft-author-name{font-size:.82rem;color:var(--text-soft)}
.ft-nav{display:flex;gap:20px}
.ft-nav a{font-size:.82rem;color:var(--text-soft);transition:color .2s}
.ft-nav a:hover{color:var(--pri)}
.ft-btm{font-size:.78rem;color:var(--text-faint);padding-top:20px;border-top:1px solid var(--line)}
.ft-dot{margin:0 6px;opacity:.3}
.ft-btm a{color:var(--text-soft);transition:color .2s}
.ft-btm a:hover,.ft-icp,.ft-police{color:var(--text-soft)}

@media(max-width:640px){
  .ft-top{flex-direction:column;gap:20px}
  .ft-nav{flex-wrap:wrap;gap:14px}
  .pn-grid{grid-template-columns:1fr}
}

/* ===== MISC ===== */
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:2px}

.lightbox{
  position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:10000;
  display:flex;align-items:center;justify-content:center;cursor:zoom-out;
  animation:lbin .2s ease;
}
.lightbox img{max-width:90vw;max-height:90vh;border-radius:8px}
@keyframes lbin{from{opacity:0}to{opacity:1}}