/* ============================================================
   VASTOCE — Obsidian Research Terminal
   设计语言：机构级研究终端 × 高级杂志排版
   深色底 / 衬线标题 / 等宽数据 / hairline 分隔 / 双色体系
   ============================================================ */

:root{
  --bg:#07080C;
  --bg2:#0A0C12;
  --panel:#0E1119;
  --panel2:#131724;
  --ink:#E8ECF4;
  --tx2:#98A2B8;
  --tx3:#5D6679;
  --line:rgba(150,163,190,.13);
  --line2:rgba(150,163,190,.07);
  --ai:#54D8E8;          /* AI 主题 · 冷青 */
  --ai-dim:rgba(84,216,232,.12);
  --cr:#E8B45C;          /* Crypto 主题 · 琥珀 */
  --cr-dim:rgba(232,180,92,.12);
  --up:#3DD68C;
  --dn:#F0616D;
  --grad:linear-gradient(120deg,var(--ai),var(--cr));
  --serif:'Songti SC','STSong','Noto Serif SC','Source Han Serif SC',Georgia,'Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'PingFang SC','Hiragino Sans GB','Segoe UI','Microsoft YaHei',sans-serif;
  --mono:ui-monospace,'SF Mono','JetBrains Mono','Cascadia Code','Menlo','Consolas',monospace;
  --wrap:1240px;
  --ease:cubic-bezier(.22,.8,.24,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
/* 全局氛围光 + 颗粒纹理 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 480px at 18% -8%,rgba(84,216,232,.055),transparent 62%),
    radial-gradient(1000px 520px at 85% -12%,rgba(232,180,92,.05),transparent 60%),
    radial-gradient(1200px 800px at 50% 118%,rgba(84,110,232,.05),transparent 65%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .025 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
::selection{background:rgba(84,216,232,.28);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 36px}
@media(max-width:720px){.wrap{padding:0 20px}}

/* ============ 阅读进度条 ============ */
#progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:99;background:var(--grad);box-shadow:0 0 12px rgba(84,216,232,.45)}

/* ============ 行情 Ticker ============ */
.ticker{
  display:flex;align-items:center;height:38px;
  background:#05060A;border-bottom:1px solid var(--line2);
  font-family:var(--mono);font-size:12px;letter-spacing:.02em;
  position:relative;z-index:60;
}
.tick-label{
  flex:none;display:flex;align-items:center;gap:7px;
  height:100%;padding:0 16px;font-size:10.5px;font-weight:700;letter-spacing:.14em;
  color:var(--dn);background:rgba(240,97,109,.08);border-right:1px solid var(--line2);
}
.tick-label i{width:6px;height:6px;border-radius:50%;background:var(--dn);animation:blink 1.6s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
.tick-view{flex:1;overflow:hidden;position:relative;height:100%}
.tick-track{
  position:absolute;display:flex;align-items:center;height:100%;gap:0;white-space:nowrap;
  animation:tickmove linear infinite;will-change:transform;
}
@keyframes tickmove{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.tick-track:hover{animation-play-state:paused}
.tk{display:inline-flex;align-items:baseline;gap:8px;padding:0 26px;border-right:1px solid var(--line2);color:var(--tx2)}
.tk b{color:var(--ink);font-weight:600}
.tk .pct{font-size:11px}
.tk .up{color:var(--up)}.tk .dn{color:var(--dn)}

/* ============ 导航 ============ */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(7,8,12,.78);backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--line2);
}
.head-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{flex:none;display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--panel2);border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.05)}
.logo-txt{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.24em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-sub{font-family:var(--mono);font-size:9px;color:var(--tx3);letter-spacing:.22em}
.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:8px 15px;font-size:14px;color:var(--tx2);
  border-radius:8px;transition:color .2s var(--ease);
}
.nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:1.5px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.nav a:hover{color:var(--ink)}
.nav a.active{color:var(--ink)}
.nav a.active::after,.nav a:hover::after{transform:scaleX(1)}
.nav .nav-rss{
  margin-left:10px;display:inline-flex;align-items:center;gap:6px;
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;
  padding:6px 12px;border:1px solid var(--line);border-radius:7px;color:var(--tx2);
  transition:.2s var(--ease);
}
.nav .nav-rss:hover{border-color:rgba(84,216,232,.4);color:var(--ai)}
@media(max-width:860px){
  .logo-sub{display:none}
  .nav a{padding:8px 9px;font-size:13px}
  .nav .nav-rss span{display:none}
}

/* ============ 首页 · 编辑刊头 Masthead ============ */
.masthead{padding:84px 0 60px;position:relative}
.mast-kicker{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:26px;
  font-family:var(--mono);font-size:11px;letter-spacing:.28em;color:var(--tx2);
}
.mast-kicker::before{content:"";width:34px;height:1px;background:var(--grad)}
.mast-title{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(38px,5.6vw,64px);line-height:1.22;letter-spacing:.015em;
  max-width:15em;
}
.mast-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.mast-desc{margin-top:24px;max-width:620px;color:var(--tx2);font-size:16.5px;line-height:1.95}
.mast-desc b{color:var(--ink);font-weight:600}
/* 统计条 */
.stats{
  margin-top:52px;display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{padding:22px 6px 24px;border-right:1px solid var(--line2)}
.stat:last-child{border-right:none}
.stat .n{font-family:var(--mono);font-size:30px;font-weight:600;letter-spacing:-.01em;line-height:1}
.stat .n em{font-style:normal;color:var(--ai)}
.stat .n em.g{color:var(--cr)}
.stat .l{margin-top:9px;font-size:12.5px;color:var(--tx3);letter-spacing:.08em}
@media(max-width:860px){
  .masthead{padding:56px 0 40px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line2)}
  .stat:nth-child(2n){border-right:none}
  .stat:nth-child(n+3){border-bottom:none}
}

/* ============ 通用区块标题 ============ */
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin:0 0 30px}
.sec-title{
  font-family:var(--serif);font-size:26px;font-weight:700;letter-spacing:.02em;
  display:flex;align-items:center;gap:14px;
}
.sec-title::before{content:"";flex:none;width:5px;height:24px;border-radius:2.5px;background:var(--grad)}
.sec-more{font-family:var(--mono);font-size:12px;color:var(--tx3);letter-spacing:.1em;transition:.2s}
.sec-more:hover{color:var(--ai)}

/* ============ Featured 头条 ============ */
.featured{
  position:relative;display:grid;grid-template-columns:1.06fr .94fr;
  background:var(--panel);border:1px solid var(--line);border-radius:18px;
  overflow:hidden;isolation:isolate;
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.featured:hover{border-color:rgba(150,163,190,.26)}
.featured::after{ /* 交汇光晕 */
  content:"";position:absolute;inset:auto -20% -60% auto;width:60%;height:120%;z-index:-1;
  background:radial-gradient(closest-side,rgba(232,180,92,.1),transparent);pointer-events:none;
}
.card-hero{position:relative;min-height:340px;overflow:hidden}
.card-hero img{width:100%;height:100%;object-fit:cover;transform:scale(1.02);transition:transform .6s var(--ease);filter:saturate(.92)}
.featured:hover .card-hero img{transform:scale(1.06)}
.featured .card-body{
  display:flex;flex-direction:column;justify-content:center;gap:18px;
  padding:48px 52px;
}
.featured .card-title{font-family:var(--serif);font-size:clamp(24px,2.6vw,33px);line-height:1.42;font-weight:700;letter-spacing:.01em}
.featured .card-sum{color:var(--tx2);font-size:15.5px;line-height:1.9;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.featured .card-foot .arrow{
  margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--ai);letter-spacing:.06em;
}
.featured .card-foot .arrow::after{content:" →";transition:.2s}
.featured:hover .card-foot .arrow::after{transform:translateX(4px);display:inline-block}
.featured.nohero{grid-template-columns:1fr}
.featured.nohero .card-body{padding:56px 64px}
@media(max-width:920px){
  .featured{grid-template-columns:1fr}
  .card-hero{min-height:240px}
  .featured .card-body{padding:32px 28px}
  .featured.nohero .card-body{padding:40px 30px}
}

/* ============ 卡片体系 ============ */
.cards{display:grid;gap:22px}
.cards-3{grid-template-columns:repeat(3,1fr)}
.cards-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:960px){.cards-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.cards-3,.cards-2{grid-template-columns:1fr}}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.card:hover{
  transform:translateY(-4px);border-color:rgba(150,163,190,.28);
  box-shadow:0 18px 44px -18px rgba(0,0,0,.6);
}
.card:not(.featured) .card-hero{height:190px}
.card:not(.featured) .card-body{padding:24px 26px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-family:var(--serif);font-size:19.5px;line-height:1.5;font-weight:700;letter-spacing:.01em;transition:color .2s}
.card:not(.featured):hover .card-title{color:var(--ai)}
.card-sum{font-size:14px;color:var(--tx2);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.card-meta time,.card-foot span{font-family:var(--mono);font-size:11px;color:var(--tx3);letter-spacing:.05em}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line2);display:flex;align-items:center;justify-content:space-between}
.card-foot .arrow{font-family:var(--mono);font-size:11.5px;color:var(--tx3);letter-spacing:.06em;transition:.2s var(--ease)}
.card:hover .card-foot .arrow{color:var(--ai);transform:translateX(3px)}
.card-hero img{transition:transform .55s var(--ease)}
.card:hover .card-hero img{transform:scale(1.055)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.14em;
  padding:4px 11px;border-radius:5px;text-transform:uppercase;
}
.badge::before{content:"";width:5px;height:5px;border-radius:1.5px;background:currentColor}
.badge.cat-ai{color:var(--ai);background:var(--ai-dim);border:1px solid rgba(84,216,232,.22)}
.badge.cat-crypto{color:var(--cr);background:var(--cr-dim);border:1px solid rgba(232,180,92,.22)}

/* ============ 首页主区布局 ============ */
.home-main{display:grid;grid-template-columns:1fr 316px;gap:56px;padding-bottom:80px}
@media(max-width:1060px){.home-main{grid-template-columns:1fr;gap:48px}}
.home-feed{display:flex;flex-direction:column;gap:22px}

/* 编辑流列表（首页第二区） */
.ed-list{display:flex;flex-direction:column}
.ed-item{
  position:relative;display:grid;grid-template-columns:58px 1fr;gap:22px;
  padding:30px 18px 30px 8px;border-bottom:1px solid var(--line2);
  transition:background .25s var(--ease);
}
.ed-item:first-child{border-top:1px solid var(--line2)}
.ed-item::before{
  content:"";position:absolute;left:0;top:28px;bottom:28px;width:2px;border-radius:2px;
  background:var(--grad);opacity:0;transition:opacity .25s;
}
.ed-item:hover{background:rgba(150,163,190,.03)}
.ed-item:hover::before{opacity:1}
.ed-num{
  font-family:var(--mono);font-size:26px;font-weight:600;color:transparent;
  -webkit-text-stroke:1px rgba(150,163,190,.4);line-height:1;padding-top:8px;
  transition:.25s;
}
.ed-item:hover .ed-num{-webkit-text-stroke-color:var(--ai)}
.ed-title{font-family:var(--serif);font-size:21px;font-weight:700;line-height:1.5;margin:10px 0 8px;transition:color .2s}
.ed-item:hover .ed-title{color:var(--ai)}
.ed-sum{font-size:14.5px;color:var(--tx2);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(max-width:640px){.ed-item{grid-template-columns:1fr;gap:8px;padding:24px 4px}.ed-num{display:none}}

/* ============ 侧栏 ============ */
.home-side{display:flex;flex-direction:column;gap:24px}
.side-box{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px}
.side-box h3{
  font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.24em;color:var(--tx2);
  text-transform:uppercase;margin-bottom:18px;display:flex;align-items:center;gap:10px;
}
.side-box h3::before{content:"";width:16px;height:2px;background:var(--grad)}
.latest-item{
  display:grid;grid-template-columns:auto 1fr;column-gap:14px;row-gap:3px;
  padding:12px 2px;border-bottom:1px dashed var(--line2);transition:.18s;
}
.latest-item:last-of-type{border-bottom:none}
.latest-item:hover .li-title{color:var(--ai)}
.li-date{font-family:var(--mono);font-size:10.5px;color:var(--tx3);grid-row:span 2;padding-top:4px}
.li-title{font-size:14px;font-weight:600;line-height:1.6;transition:.18s}
.li-cat{font-family:var(--mono);font-size:10px;color:var(--tx3);letter-spacing:.1em}

/* ============ 分类页 ============ */
.cat-hero{
  padding:72px 0 48px;border-bottom:1px solid var(--line2);position:relative;
}
.cat-hero .badge{margin-bottom:22px;font-size:12px;padding:7px 16px}
.cat-hero h1{
  font-family:var(--serif);font-size:clamp(34px,4.6vw,52px);font-weight:700;line-height:1.25;
  max-width:16em;
}
.cat-hero p{margin-top:16px;color:var(--tx2);max-width:560px;line-height:1.9}
.cat-count{font-family:var(--mono);font-size:12px;color:var(--tx3);letter-spacing:.16em;margin-top:22px}
.cat-list{padding:52px 0 80px;display:flex;flex-direction:column;gap:22px}

/* ============ 文章页 ============ */
.crumbs{
  display:flex;align-items:center;gap:10px;padding:26px 0 0;
  font-family:var(--mono);font-size:11.5px;color:var(--tx3);letter-spacing:.06em;
}
.crumbs a:hover{color:var(--ai)}
.crumbs span::before{content:"/";margin-right:10px;opacity:.5}
.art-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:64px;
  padding:36px 0 88px;
}
@media(max-width:1000px){.art-layout{grid-template-columns:1fr;gap:0}.art-side{display:none}}
.art-head{max-width:760px}
.art-head h1{
  font-family:var(--serif);font-size:clamp(30px,4vw,44px);font-weight:700;
  line-height:1.38;letter-spacing:.01em;margin:20px 0 22px;
}
.art-lead{
  font-size:17px;color:var(--tx2);line-height:2;padding:4px 0 4px 22px;
  border-left:3px solid;border-image:linear-gradient(180deg,var(--ai),var(--cr)) 1;
}
.art-head .card-meta{margin-bottom:8px}

/* 正文排版 · 杂志级 */
.art-content{max-width:760px;font-size:16.5px;color:#C6CDDA;line-height:2.05;letter-spacing:.005em}
.art-content p{margin:26px 0}
.art-content>p:first-of-type::first-letter{
  font-family:var(--serif);font-size:3.4em;font-weight:700;float:left;
  line-height:1;padding:6px 14px 0 0;color:var(--ink);
}
.art-content h2{
  font-family:var(--serif);font-size:27px;font-weight:700;color:var(--ink);
  margin:60px 0 20px;letter-spacing:.015em;line-height:1.5;
  padding-top:26px;border-top:1px solid var(--line2);position:relative;
}
.art-content h2:first-child{margin-top:34px;border-top:none;padding-top:0}
.art-content h3{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--ink);margin:42px 0 14px}
.art-content h4{font-size:16px;font-weight:700;color:var(--ink);margin:32px 0 10px}
.art-content a{color:var(--ai);border-bottom:1px solid rgba(84,216,232,.3);transition:.2s}
.art-content a:hover{border-bottom-color:var(--ai);background:var(--ai-dim)}
.art-content strong{color:var(--ink);font-weight:650}
.art-content ul,.art-content ol{margin:22px 0;padding-left:6px;list-style:none}
.art-content li{position:relative;padding:7px 0 7px 30px;margin:0}
.art-content ul li::before{
  content:"";position:absolute;left:2px;top:19px;width:14px;height:2px;border-radius:2px;
  background:var(--grad);opacity:.7;
}
.art-content ol{counter-reset:oli}
.art-content ol li{counter-increment:oli;padding-left:40px}
.art-content ol li::before{
  content:counter(oli,decimal-leading-zero);position:absolute;left:0;top:8px;
  font-family:var(--mono);font-size:12px;font-weight:600;color:var(--ai);
}
.art-content blockquote{
  margin:34px 0;padding:20px 28px;
  background:linear-gradient(180deg,rgba(84,216,232,.05),rgba(232,180,92,.04));
  border:1px solid var(--line2);border-left:3px solid var(--cr);border-radius:0 12px 12px 0;
  color:var(--tx2);font-size:15.5px;line-height:1.95;
}
.art-content blockquote p{margin:8px 0}
.table-wrap{margin:34px 0;overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.art-content table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
.art-content th{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--tx2);text-align:left;padding:14px 18px;
  background:var(--panel2);border-bottom:1px solid var(--line);
}
.art-content td{padding:13px 18px;border-bottom:1px solid var(--line2);color:#C6CDDA}
.art-content tr:last-child td{border-bottom:none}
.art-content tr:hover td{background:rgba(150,163,190,.035)}
.art-content pre{
  margin:30px 0;padding:22px 26px;border-radius:14px;overflow-x:auto;
  background:#05060A;border:1px solid var(--line);
  font-family:var(--mono);font-size:13.5px;line-height:1.75;color:#B9C4D6;
}
.art-content code{font-family:var(--mono);font-size:.88em;background:var(--panel2);border:1px solid var(--line2);border-radius:5px;padding:2px 7px;color:var(--ai)}
.art-content pre code{background:none;border:none;padding:0;color:inherit}
.art-content img{border-radius:14px;border:1px solid var(--line2);margin:30px auto}
.art-content hr{border:none;height:1px;background:var(--line2);margin:44px 0}

/* FAQ */
.faq{max-width:760px;margin:56px 0 0;padding-top:36px;border-top:1px solid var(--line2)}
.faq>h2,.refs>h2{font-family:var(--serif);font-size:24px;font-weight:700;margin-bottom:22px}
.faq details{
  border:1px solid var(--line2);border-radius:12px;background:var(--panel);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s;
}
.faq details[open]{border-color:rgba(84,216,232,.25)}
.faq summary{
  cursor:pointer;list-style:none;padding:17px 22px;font-weight:600;font-size:15px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-family:var(--mono);font-size:17px;color:var(--tx3);flex:none;
  transition:transform .25s var(--ease);
}
.faq details[open] summary::after{transform:rotate(45deg);color:var(--ai)}
.faq details p{padding:2px 22px 18px;font-size:14.5px;color:var(--tx2);line-height:1.9}

/* 参考资料 */
.refs{max-width:760px;margin:40px 0 0;padding-top:32px;border-top:1px solid var(--line2)}
.refs ol{list-style:none;counter-reset:refi}
.refs li{counter-increment:refi;position:relative;padding:7px 0 7px 44px;font-size:14px;color:var(--tx2);line-height:1.8}
.refs li::before{
  content:"["counter(refi,decimal-leading-zero)"]";position:absolute;left:0;top:9px;
  font-family:var(--mono);font-size:11px;color:var(--cr);letter-spacing:.04em;
}
.refs a{color:var(--tx2);border-bottom:1px solid var(--line);transition:.2s}
.refs a:hover{color:var(--ai);border-bottom-color:var(--ai)}

/* 免责声明 */
.art-disclaimer{
  max-width:760px;margin:44px 0 0;padding:16px 22px;border-radius:12px;
  background:rgba(232,180,92,.05);border:1px dashed rgba(232,180,92,.22);
  font-size:13px;color:#B79A63;line-height:1.8;
}

/* 上一篇/下一篇 */
.pn{max-width:760px;margin:40px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pn-prev,.pn-next{
  display:flex;flex-direction:column;gap:7px;padding:18px 20px;
  background:var(--panel);border:1px solid var(--line);border-radius:13px;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.pn-next{align-items:flex-end;text-align:right}
.pn-prev:hover,.pn-next:hover{border-color:rgba(84,216,232,.3);transform:translateY(-2px)}
.pn-prev span,.pn-next span{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--tx3)}
.pn-prev b,.pn-next b{font-size:14.5px;font-weight:600;line-height:1.6}
@media(max-width:640px){.pn{grid-template-columns:1fr}}

/* 相关阅读 */
.rel-sec{max-width:100%;margin:56px 0 0}
.rel-sec .cards-3 .card-title{font-size:17px}

/* 文章侧栏 TOC */
.art-side .sticky{position:sticky;top:110px}
.toc{
  border-left:1px solid var(--line2);padding:6px 0 6px 20px;
}
.toc-title{
  font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:.22em;
  color:var(--tx3);text-transform:uppercase;margin-bottom:14px;
}
.toc a{
  display:block;position:relative;padding:6px 0 6px 14px;
  font-size:13px;color:var(--tx3);line-height:1.6;
  border-left:2px solid transparent;margin-left:-21px;padding-left:19px;
  transition:.2s var(--ease);
}
.toc a:hover{color:var(--ink)}
.toc a.on{color:var(--ai);border-left-color:var(--ai)}
.toc a.toc-h4{padding-left:34px;font-size:12.5px}

/* 移动端 TOC 折叠 */
.toc-mobile{margin:28px 0 8px;border:1px solid var(--line);border-radius:13px;background:var(--panel)}
.toc-mobile summary{cursor:pointer;list-style:none;padding:15px 20px;font-family:var(--mono);font-size:11.5px;letter-spacing:.18em;color:var(--tx2)}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"▾";float:right;color:var(--tx3)}
.toc-mobile[open] summary::after{content:"▴"}
.toc-mobile .toc{margin:0 0 10px 20px;border-left-color:var(--line)}
@media(min-width:1001px){.toc-mobile{display:none}}

/* ============ 关于页 ============ */
.about-wrap{max-width:760px;padding:72px 0 90px}
.about-wrap h1{font-family:var(--serif);font-size:clamp(32px,4vw,46px);margin-bottom:10px}
.about-wrap .art-content{margin-top:26px}

/* ============ 页脚 ============ */
.site-foot{border-top:1px solid var(--line2);background:#05060A;margin-top:20px}
.foot-inner{padding:64px 0 44px;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px}
.foot-brand .logo-name{font-size:22px}
.foot-brand p{margin-top:18px;color:var(--tx3);font-size:13.5px;line-height:1.9;max-width:340px}
.foot-col h4{font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:.24em;color:var(--tx2);text-transform:uppercase;margin-bottom:18px}
.foot-col a{display:block;padding:6px 0;font-size:14px;color:var(--tx3);transition:.2s}
.foot-col a:hover{color:var(--ai);transform:translateX(3px)}
.foot-base{
  padding:22px 0 30px;border-top:1px solid var(--line2);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11px;color:var(--tx3);letter-spacing:.08em;
}
.foot-base .dot{color:var(--up);animation:blink 2s infinite}
@media(max-width:860px){.foot-inner{grid-template-columns:1fr;gap:34px}}

/* ============ 滚动显现 ============ */
html.jsre .rv{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
html.jsre .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .tick-track{animation:none}
}

/* ============ 分隔装饰 ============ */
.divider-glyph{
  display:flex;align-items:center;gap:16px;margin:64px 0;color:var(--tx3);
  font-family:var(--mono);font-size:10px;letter-spacing:.4em;
}
.divider-glyph::before,.divider-glyph::after{content:"";flex:1;height:1px;background:var(--line2)}

/* 相关阅读数量自适应 */
.cards-auto{grid-template-columns:repeat(3,1fr)}
.cards-auto:not(:has(.card:nth-child(3))){grid-template-columns:repeat(2,1fr)}
.cards-auto:not(:has(.card:nth-child(2))){grid-template-columns:1fr}