/* ═══ Cabecera de páginas interiores (cielo corto) ═══════ */
.sub{position:relative;overflow:hidden;padding:80px 0 64px;text-align:center;
  background:linear-gradient(180deg,var(--sky-2) 0%,var(--sky-3) 55%,#fff 100%)}
.sub::before{content:"";position:absolute;width:700px;height:380px;top:-140px;left:50%;transform:translateX(-50%);border-radius:50%;background:rgba(255,255,255,.7);filter:blur(60px);pointer-events:none}
.sub-w{position:relative;z-index:1;max-width:800px;margin:0 auto}
.sub .h1{max-width:18ch;margin:0 auto}
.sub-s{margin:20px auto 0;max-width:620px;font-size:18px;line-height:1.6;color:var(--ink-2)}
@media (max-width:720px){.sub{padding:56px 0 44px}.sub-s{font-size:16.5px}}