/* ปุ่มลัดติดขอบจอล่าง เฉพาะมือถือ — โผล่หลังปัดพ้นจอแรก ปิดได้ */
#sb-sticky{position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;
  align-items:center;gap:10px;padding:8px 12px calc(8px + env(safe-area-inset-bottom,0px));
  background:rgba(8,30,67,.97);box-shadow:0 -6px 20px rgba(11,31,58,.26);
  transform:translateY(110%);transition:transform .26s ease}
#sb-sticky.on{transform:none}
#sb-sticky .sc-t{flex:1;min-width:0;color:#c9ddf4;font-size:11.5px;line-height:1.35}
#sb-sticky .sc-t b{display:block;color:#fff;font-size:13px;margin-bottom:1px}
#sb-sticky a.sc-go{flex:none;text-decoration:none;white-space:nowrap;color:#fff;font-weight:800;
  font-size:13px;padding:10px 15px;border-radius:10px;
  background:linear-gradient(180deg,#2E97EE,#0A55A8);box-shadow:0 2px 0 #073f7d}
#sb-sticky button.sc-x{flex:none;background:none;border:0;color:#8fb4dd;font-size:17px;
  line-height:1;padding:5px 2px;cursor:pointer}
@media (max-width:760px){#sb-sticky{display:flex}}
@media print{#sb-sticky{display:none!important}}

#sb-sticky .sc-go,#sb-sticky button.sc-x{min-height:44px;display:flex;align-items:center;justify-content:center}
#sb-sticky button.sc-x{min-width:44px;color:#d4e8ff}
@media(max-width:380px){#sb-sticky{gap:6px;padding-inline:8px}#sb-sticky a.sc-go{padding-inline:10px}#sb-sticky .sc-t{font-size:10.5px}}
@media(prefers-reduced-motion:reduce){#sb-sticky{transition:none}}