:root{
  --deep:#0B1A2C;
  --bronze:#C4B99A;
  --cream:#F7F7F5;
  --ink:#1a1a1a;
  --muted:#6b7280;
  --line:#e5e5e0;
  --card:#ffffff;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-hover:0 4px 12px rgba(0,0,0,.08),0 2px 4px rgba(0,0,0,.04);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
  font-size:16px;line-height:1.7;color:var(--ink);
  background:var(--cream);-webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:20;background:var(--deep);
  border-bottom:1px solid rgba(255,255,255,.08)}
.nav-inner{max-width:1100px;margin:0 auto;padding:.75rem 1.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--cream)}
.logo-xuan{width:28px;height:28px;border-radius:6px;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;justify-content:center}
.brand-text .cn{font-size:1rem;letter-spacing:.04em;font-weight:600;line-height:1.2}
.brand-text .en{font-size:.65rem;letter-spacing:.15em;color:var(--bronze);
  line-height:1.1;margin-top:.1rem;opacity:.8}
.menu{display:flex;gap:1.5rem;flex-wrap:wrap;align-items:center}
.menu a{color:rgba(245,245,240,.7);font-size:.88rem;letter-spacing:.02em;
  padding:.25rem 0;transition:.2s}
.menu a:hover,.menu a.active{color:var(--cream)}

/* ---------- 首页布局 ---------- */
.home{min-height:100vh;display:flex;flex-direction:column}

/* ---------- hero ---------- */
.hero{background:var(--cream);padding:4rem 1.5rem 3.5rem;border-bottom:1px solid var(--line)}
.hero-inner{max-width:1100px;margin:0 auto}
.hero h1{font-family:'Noto Serif SC','Source Han Serif SC','STSong','SimSun',serif;
  font-size:clamp(2rem,4vw,2.8rem);font-weight:600;letter-spacing:.02em;color:var(--ink);
  line-height:1.3;margin-bottom:1rem}
.hero .sub{color:var(--muted);font-size:1.05rem;line-height:1.8;max-width:640px;margin-bottom:2rem}
.hero-cta{display:inline-block;padding:.65rem 1.5rem;background:var(--deep);color:var(--cream);
  border-radius:6px;font-size:.9rem;font-weight:500;letter-spacing:.02em;transition:.2s}
.hero-cta:hover{background:#13243a}

/* ---------- 通用内页 ---------- */
.page{max-width:1100px;margin:0 auto;padding:3rem 1.5rem 4rem}
.page-header{margin-bottom:2.5rem;padding-bottom:1.5rem;border-bottom:1px solid var(--line)}
.page-header h1{font-family:'Noto Serif SC','Source Han Serif SC','STSong','SimSun',serif;
  font-size:1.85rem;font-weight:600;letter-spacing:.02em;color:var(--ink);margin-bottom:.5rem}
.page-header .lead{color:var(--muted);font-size:1rem;line-height:1.8;max-width:640px}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:1.5rem;letter-spacing:.02em}
.breadcrumb a{color:var(--muted);transition:.2s}
.breadcrumb a:hover{color:var(--ink)}

/* ---------- 卡片网格 ---------- */
.section-title{font-size:1.15rem;font-weight:600;color:var(--ink);margin-bottom:1.5rem;
  letter-spacing:.02em;display:flex;align-items:center;gap:.6rem}
.section-title::before{content:'';width:4px;height:18px;background:var(--bronze);border-radius:2px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:1.25rem;margin-bottom:3rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;
  padding:1.5rem;display:flex;flex-direction:column;gap:.75rem;transition:.2s;box-shadow:var(--shadow)}
.card:hover{box-shadow:var(--shadow-hover);border-color:#d5d5d0}
.card .tag{font-size:.75rem;font-weight:500;color:var(--bronze);text-transform:uppercase;
  letter-spacing:.08em}
.card h3{font-family:'Noto Serif SC','Source Han Serif SC','STSong','SimSun',serif;
  font-size:1.08rem;font-weight:600;color:var(--ink);line-height:1.5}
.card p{color:var(--muted);font-size:.9rem;line-height:1.7;flex:1}
.card .more{margin-top:.5rem;color:var(--deep);font-size:.85rem;font-weight:500;transition:.2s}
.card .more:hover{color:var(--bronze-hi)}

/* ---------- 关于我 ---------- */
.about-section{max-width:720px;margin:0 auto;padding:3rem 0;border-top:1px solid var(--line)}
.about-section p{color:var(--muted);font-size:1rem;line-height:1.85;margin-bottom:1.2rem}
.about-section .btn{display:inline-block;padding:.6rem 1.4rem;border:1px solid var(--line);
  color:var(--ink);border-radius:6px;font-size:.88rem;font-weight:500;transition:.2s;background:var(--card)}
.about-section .btn:hover{border-color:var(--deep);background:var(--deep);color:var(--cream)}

/* ---------- 文章正文 ---------- */
.article{max-width:760px;margin:0 auto;padding:3rem 1.5rem 4rem}
.article h1{font-family:'Noto Serif SC','Source Han Serif SC','STSong','SimSun',serif;
  font-size:1.75rem;font-weight:600;color:var(--ink);margin-bottom:.75rem;line-height:1.4}
.article .meta{color:var(--muted);font-size:.85rem;margin-bottom:2rem;
  border-bottom:1px solid var(--line);padding-bottom:1rem}
.article p{margin-bottom:1.5rem;color:var(--ink);font-weight:500;line-height:1.85}
.article h2{font-family:'Noto Serif SC','Source Han Serif SC','STSong','SimSun',serif;
  font-size:1.25rem;font-weight:600;color:var(--ink);margin:2.5rem 0 1rem}
.article blockquote{margin:1.5rem 0;padding:1rem 1.25rem;background:var(--card);
  border-left:3px solid var(--bronze);color:var(--ink);font-weight:500;
  border-radius:0 6px 6px 0;box-shadow:var(--shadow)}
.article blockquote .src{display:block;margin-top:.5rem;color:var(--muted);font-size:.8rem;font-weight:400}

/* ---------- 页脚 ---------- */
.footer{background:var(--deep);color:var(--bronze);text-align:center;
  padding:2rem 1.5rem;margin-top:auto}
.footer p{font-size:.85rem;letter-spacing:.02em;line-height:1.8}
.footer .small{font-size:.78rem;color:#8a93a1;margin-top:.25rem}
.footer a{color:var(--bronze);text-decoration:none}

/* ---------- 响应式 ---------- */
@media(max-width:640px){
  .menu{gap:1rem}
  .brand-text .cn{font-size:.92rem}
  .brand-text .en{display:none}
  .hero{padding:2.5rem 1.2rem 2.5rem}
  .hero h1{font-size:1.65rem}
  .grid{grid-template-columns:1fr;gap:1rem}
  .page{padding:2rem 1.2rem 3rem}
}