/* ===== 诗词宇宙 · 基础样式 ===== */
:root{
  --bg:#04050c;
  --bg2:#0a0e22;
  --ink:#e8edff;
  --dim:#8f9bc4;
  --line:rgba(140,170,255,.14);
  --tang:#ffcf6b;   /* 唐 · 琥珀金 */
  --song:#6bd3ff;   /* 宋 · 天青 */
  --other:#c08bff;  /* 其他 · 紫 */
  --glow:#8ea8ff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:radial-gradient(1200px 800px at 50% -10%,#0d1230 0%,#070917 45%,#04050a 100%);
  color:var(--ink);
  font-family:"Noto Serif SC","Songti SC","STSong",Georgia,"Microsoft YaHei",serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
canvas#bg-canvas{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.aurora{
  position:fixed;inset:-20%;z-index:0;pointer-events:none;opacity:.26;
  background:
    radial-gradient(40% 30% at 20% 25%,rgba(90,120,255,.12),transparent 70%),
    radial-gradient(35% 28% at 80% 70%,rgba(255,140,220,.09),transparent 70%),
    radial-gradient(30% 24% at 60% 15%,rgba(120,255,220,.06),transparent 70%);
  filter:blur(30px);
  animation:drift 26s ease-in-out infinite alternate;
}
@keyframes drift{from{transform:translate3d(-2%,-1%,0) scale(1)}to{transform:translate3d(3%,2%,0) scale(1.08)}}

.sec-title{
  font-size:clamp(18px,2.4vw,26px);margin:0 0 18px;letter-spacing:.14em;
  background:linear-gradient(92deg,#fff,#bcd0ff 35%,#ffd9a0 62%,#fff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 14px rgba(140,170,255,.35));
}
.sec-title .cnt{font-size:.62em;color:var(--dim);letter-spacing:.05em}

.site-foot{
  position:relative;z-index:2;margin-top:60px;padding:26px 6vw 40px;
  display:flex;gap:20px;flex-wrap:wrap;align-items:center;
  color:var(--dim);font-size:13px;border-top:1px solid var(--line);
}
.site-foot a:hover{color:var(--tang)}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.on{opacity:1;transform:none}

::selection{background:rgba(255,207,107,.3)}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-thumb{background:linear-gradient(#2a3466,#151a38);border-radius:8px}
::-webkit-scrollbar-track{background:#070a18}