:root{
  --bg:#F1ECE3;--paper:#FBF8F2;--ink:#2C362E;--deep:#3F5244;--sage:#6E7F6A;
  --muted:#7A8175;--line:#D9D2C1;--gold:#B49A6A;--max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:112px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15.5px;line-height:1.9;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.serif{font-family:"Songti SC","STSong","SimSun",serif}
.wrap{max-width:var(--max);margin:0 auto;padding:0 40px}
.top{background:#55654F;color:#F7F2E6;font-size:12px;letter-spacing:.16em}
.top .wrap{display:flex;justify-content:space-between;height:38px;align-items:center;gap:14px}
.top a{border-bottom:1px solid rgba(247,242,230,.4);padding-bottom:2px}
header{position:sticky;top:0;z-index:20;background:rgba(251,248,242,.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(20,35,29,.04)}
.nav{display:flex;align-items:center;justify-content:space-between;height:92px;gap:24px;min-width:0}
.brand{display:flex;flex-direction:column;line-height:1;gap:6px;flex:none}
.brand .cn{font-size:30px;letter-spacing:.18em;font-weight:600;color:var(--deep)}
.brand .en{font-size:10px;letter-spacing:.3em;color:var(--muted)}
.menu{display:flex;gap:28px;font-size:14px;font-weight:500;letter-spacing:.1em;color:#2F3A31;min-width:0}
.menu a{position:relative;padding:10px 0}
.menu a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--deep);transform:scaleX(0);transform-origin:left;transition:.3s}
.menu a:hover,.menu a.active{color:var(--deep)}
.menu a:hover::after,.menu a.active::after{transform:scaleX(1)}
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;background:var(--deep);color:#F7F2E6;font-size:13px;letter-spacing:.1em;box-shadow:0 6px 16px rgba(63,82,68,.16)}
.btn.line{background:transparent;border:1px solid #C9C1AC;color:var(--deep)}

/* 文章头 */
.article-hero{padding:78px 0 10px;text-align:center}
.crumb{font-size:12px;letter-spacing:.14em;color:var(--gold);margin-bottom:22px}
.crumb a:hover{color:var(--deep)}
.article-hero h1{font-family:"Songti SC","STSong","SimSun",serif;font-size:clamp(34px,4.4vw,52px);line-height:1.35;font-weight:600;color:var(--deep);margin:0 auto 20px;max-width:880px;letter-spacing:.01em;text-wrap:balance}
.dek{font-size:17px;line-height:1.9;color:#5A6157;max-width:680px;margin:0 auto 22px}
.meta{font-size:12px;letter-spacing:.12em;color:var(--muted)}
.cover{max-width:1000px;margin:42px auto 0;padding:0 40px}
.cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line)}
.cover figcaption{font-size:11.5px;color:var(--muted);letter-spacing:.08em;margin-top:10px;text-align:right}

/* 正文 */
.article-body{max-width:760px;margin:0 auto;padding:52px 40px 20px;font-family:"Songti SC","STSong","SimSun",serif;font-size:18.5px;line-height:2.1;color:#2F3A31}
.article-body p{margin:0 0 1.35em}
.article-body .lead::first-letter{float:left;font-size:64px;line-height:.9;padding:6px 10px 0 0;color:var(--deep)}
.article-body h2{font-size:27px;line-height:1.5;color:var(--deep);margin:1.8em 0 .7em;font-weight:600}
.article-body h3{font-size:21px;line-height:1.6;color:var(--deep);margin:1.4em 0 .5em;font-weight:600}
.article-body blockquote{margin:2em 0;padding:6px 0 6px 24px;border-left:2px solid var(--gold);font-size:21px;line-height:1.9;color:var(--deep)}
.article-body ul{margin:0 0 1.4em;padding-left:1.2em}
.article-body li{margin:.3em 0}
.article-body strong{color:var(--deep);font-weight:600}
.article-body .note{font-size:14px;color:var(--muted);line-height:1.9;border-top:1px solid var(--line);padding-top:18px;margin-top:2.2em}

.cta{max-width:760px;margin:20px auto 0;padding:0 40px}
.cta-box{background:var(--paper);border:1px solid var(--line);padding:30px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-box b{display:block;font-size:19px;color:var(--deep);margin-bottom:6px}
.cta-box span{font-size:13.5px;color:#5A6157}

.related{max-width:1000px;margin:56px auto 0;padding:0 40px 72px}
.related h3{font-size:13px;letter-spacing:.2em;color:var(--gold);font-weight:500;margin:0 0 20px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.rcard{border-top:1px solid var(--line);padding-top:14px}
.rcard img{width:100%;aspect-ratio:4/3;object-fit:cover;margin-bottom:12px}
.rcard .cat{font-size:11px;letter-spacing:.16em;color:var(--gold)}
.rcard b{display:block;font-family:"Songti SC","STSong","SimSun",serif;font-size:17px;line-height:1.6;color:var(--deep);margin:6px 0}
.rcard span{font-size:12px;color:var(--muted)}

/* 索引页 */
.index-hero{padding:80px 0 40px;text-align:center}
.index-hero h1{font-family:"Songti SC","STSong","SimSun",serif;font-size:clamp(42px,6vw,68px);line-height:1.2;color:var(--deep);margin:0 0 16px;font-weight:600;text-wrap:balance}
.index-hero p{max-width:600px;margin:0 auto;color:#5A6157;font-size:16px}
.index-grid{max-width:1100px;margin:0 auto;padding:10px 40px 80px;display:grid;grid-template-columns:1fr 1fr;gap:40px}
.acard{background:var(--paper);border:1px solid var(--line);overflow:hidden}
.acard img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line)}
.acard .body{padding:24px 26px 28px}
.acard .cat{font-size:11px;letter-spacing:.16em;color:var(--gold)}
.acard h2{text-wrap:balance;font-family:"Songti SC","STSong","SimSun",serif;font-size:23px;line-height:1.5;color:var(--deep);margin:8px 0 8px;font-weight:600}
.acard p{font-size:13.5px;line-height:1.9;color:#5A6157;margin:0 0 14px}
.acard .date{font-size:11px;color:var(--muted);letter-spacing:.1em}

footer{background:#2C362E;color:#C9C4B2;padding:46px 0 22px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr 1fr;gap:40px;margin-bottom:28px}
.foot-brand .cn{font-size:24px;color:#F7F2E6;letter-spacing:.16em;font-weight:600}
.foot-brand .en{display:block;font-size:8px;letter-spacing:.3em;color:#9E9A88;margin-top:6px}
.foot-brand p{font-size:11.5px;line-height:2;margin:12px 0 0;color:#A8A392}
.foot-col h4{font-size:10px;letter-spacing:.22em;color:#D9C9A6;margin:0 0 12px;font-weight:500}
.foot-col a,.foot-col p{display:block;font-size:11.5px;margin:0 0 6px;color:#A8A392}
.foot-col a:hover{color:#F7F2E6}
.foot-bottom{border-top:1px solid rgba(201,196,178,.16);padding-top:16px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:10px;color:#8A8677}

@media(max-width:900px){
  .wrap{padding:0 22px}
  .nav{height:auto;min-height:74px;flex-wrap:wrap;padding:10px 22px}
  .menu{display:flex;order:3;flex:0 0 100%;width:100%;max-width:100%;min-width:0;overflow-x:auto;gap:22px;font-size:13px;padding:8px 0 2px;white-space:nowrap;scrollbar-width:none}
  .menu::-webkit-scrollbar{display:none}
  .menu a{padding:4px 0}
  .article-hero{padding:48px 0 6px}
  .article-body{padding:36px 22px 10px;font-size:17.5px}
  .cover,.cta,.related{padding-left:22px;padding-right:22px}
  .related-grid{grid-template-columns:1fr}
  .index-grid{grid-template-columns:1fr;padding:10px 22px 56px}
  .foot-grid{grid-template-columns:1fr;gap:24px}
}
@media(max-width:520px){
  .top .wrap{height:auto;padding:8px 0;flex-wrap:wrap;justify-content:center;font-size:10.5px}
  .article-hero h1{font-size:31px}
  .dek{font-size:15.5px}
  .article-body{font-size:17px}
  .article-body h2{font-size:23px}
  .article-body blockquote{font-size:18px}
}