:root{--bg:#0a1628;--card:#1a2740;--gold:#d4a574;--text:#f5f0e8;--muted:#9fb0c8;--line:rgba(212,165,116,.2);--maxw:1000px;--measure:660px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);line-height:1.95;font-family:"Songti SC","STSong","SimSun","Source Han Serif SC",serif;-webkit-font-smoothing:antialiased;overflow-x:hidden;letter-spacing:.02em}
.sans{font-family:"PingFang SC","Microsoft YaHei","Heiti SC",sans-serif}
a{color:var(--gold);text-decoration:none}
nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(10,22,40,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
nav .wrap{max-width:var(--maxw);margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
nav .logo{font-size:1.05rem;letter-spacing:2px;color:var(--gold);font-weight:600}
nav .logo a{color:var(--gold)}
nav .links{display:flex;gap:22px;font-size:.9rem}
nav .links a{color:var(--muted);text-decoration:none;transition:color .3s}
nav .links a:hover,nav .links a.active{color:var(--gold)}
#menuBtn{display:none;background:none;border:none;color:var(--gold);font-size:1.5rem;cursor:pointer}

/* 内容页通用 */
.page{max-width:var(--maxw);margin:0 auto;padding:150px 32px 40px}
.page-hero{text-align:center;padding:150px 32px 60px;position:relative;overflow:hidden}
.page-hero .glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(680px,90vw);height:min(680px,90vw);border-radius:50%;background:radial-gradient(circle,rgba(212,165,116,.14),transparent 66%);filter:blur(12px);pointer-events:none}
.page-hero .z{position:relative;z-index:2}
.page-hero .eyebrow{color:var(--muted);letter-spacing:5px;font-size:.82rem;font-family:"PingFang SC",sans-serif;margin-bottom:18px}
.page-hero h1{font-size:clamp(2rem,5.5vw,3.4rem);font-weight:600;letter-spacing:2px;line-height:1.25;margin-bottom:22px;background:linear-gradient(180deg,#f5f0e8,#d4a574);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.page-hero .sub{color:var(--muted);font-size:1.08rem;max-width:var(--measure);margin:0 auto;line-height:2;text-wrap:balance}

.block{max-width:var(--maxw);margin:0 auto;padding:54px 32px;border-top:1px solid var(--line)}
.block:first-of-type{border-top:none}
.block .idx{color:var(--gold);font-family:"PingFang SC",sans-serif;font-size:.8rem;letter-spacing:5px;opacity:.85;margin-bottom:12px}
.block h2{font-size:clamp(1.5rem,3.4vw,2.1rem);margin-bottom:24px;font-weight:600;letter-spacing:2px;line-height:1.45}
.block h3{color:var(--gold);font-size:1.2rem;margin:26px 0 12px;letter-spacing:1px}
.measure{max-width:var(--measure)}
p{color:var(--muted);font-size:1.06rem;margin-bottom:18px;text-wrap:pretty}
p strong{color:var(--text);font-weight:600}
.gold{color:var(--gold)}

.cards{display:grid;gap:20px;margin-top:8px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px 24px;transition:transform .3s,border-color .3s}
.card:hover{transform:translateY(-5px);border-color:var(--gold)}
.card .k{color:var(--gold);font-weight:600;margin-bottom:10px;font-size:1.14rem;letter-spacing:1px}
.card .d{color:var(--muted);font-size:.96rem;margin:0;line-height:1.85}

/* 条目行（哲学/五层等） */
.row{display:grid;grid-template-columns:7em 1fr;gap:0 28px;align-items:baseline;padding:18px 0;border-bottom:1px solid var(--line)}
.row:last-of-type{border-bottom:none}
.row .t{color:var(--gold);font-size:1.15rem;font-weight:600;letter-spacing:2px;white-space:nowrap}
.row .x{color:var(--muted);margin:0;font-size:1rem}

.quote{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:14px;padding:28px 30px;margin:28px 0;max-width:760px}
.quote p{color:var(--text);margin-bottom:10px;font-size:1.05rem;line-height:1.9}
.quote p:last-child{margin-bottom:0}
.quote .cap{color:var(--gold);font-size:.82rem;letter-spacing:3px;font-family:"PingFang SC",sans-serif}

.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:10px 0}
.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:32px 20px;text-align:center}
.stat .n{font-size:2.4rem;color:var(--gold);font-weight:600;line-height:1;font-family:"PingFang SC",sans-serif}
.stat .u{font-size:1rem;color:var(--gold);opacity:.8}
.stat .l{color:var(--muted);font-size:.88rem;margin-top:12px;font-family:"PingFang SC",sans-serif;letter-spacing:1px}

.tier{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:12px}
.tier .step{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:30px 26px}
.tier .step .no{color:var(--gold);opacity:.55;font-size:.9rem;letter-spacing:2px;font-family:"PingFang SC",sans-serif}
.tier .step h3{color:var(--gold);font-size:1.3rem;margin:6px 0;letter-spacing:2px}
.tier .step .tag{color:var(--muted);font-size:.8rem;letter-spacing:1px;margin-bottom:14px;font-family:"PingFang SC",sans-serif}
.tier .step p{font-size:.95rem;margin:0 0 8px;line-height:1.8}

/* 论文/列表 */
.list{list-style:none;margin:8px 0}
.list li{color:var(--muted);padding:11px 0 11px 26px;position:relative;border-bottom:1px solid var(--line);font-size:1rem}
.list li:last-child{border-bottom:none}
.list li::before{content:"";position:absolute;left:0;top:19px;width:7px;height:7px;background:var(--gold);transform:rotate(45deg)}
.list li .tag{color:var(--gold);font-size:.78rem;font-family:"PingFang SC",sans-serif;margin-left:8px;opacity:.8}

.backhome{display:inline-block;margin-top:12px;color:var(--muted);font-family:"PingFang SC",sans-serif;font-size:.92rem}
.backhome:hover{color:var(--gold)}

footer{border-top:1px solid var(--line);padding:52px 32px;text-align:center;margin-top:40px}
footer p{margin-bottom:9px;font-size:.9rem;color:var(--muted);font-family:"PingFang SC",sans-serif}
footer p.hero-line{color:var(--text);font-size:1rem}
footer .fire-mark{color:var(--gold);font-size:1.1rem;letter-spacing:3px;margin-top:16px}
footer .nav-links{margin:14px 0}
footer .nav-links a{color:var(--muted);margin:0 10px;font-size:.85rem}
footer .nav-links a:hover{color:var(--gold)}

@media(max-width:760px){
nav .links{position:fixed;top:57px;right:0;flex-direction:column;background:rgba(10,22,40,.97);padding:20px 28px;gap:18px;border-left:1px solid var(--line);border-bottom:1px solid var(--line);border-bottom-left-radius:14px;transform:translateX(120%);transition:transform .35s}
nav .links.open{transform:translateX(0)}
#menuBtn{display:block}
.g2,.g3,.stats,.tier{grid-template-columns:1fr}
.row{grid-template-columns:1fr;gap:4px}
.page,.block,.page-hero{padding-left:22px;padding-right:22px}
}