/* รวยทรัพย์999 — rsub999.com | theme: navy+orange (อ้างอิงพาเลตต์ rsup999) | prefix rs- | v2 2026-09-26 */

/* ---------- font fallback กัน CLS (Playbook v2 บทที่ 6) ---------- */
@font-face{font-family:Mitr-fb;font-display:swap;src:local("Arial Black");size-adjust:104%;ascent-override:92%;descent-override:24%;line-gap-override:0%}
@font-face{font-family:Plex-fb;font-display:swap;src:local("Segoe UI");size-adjust:100%;ascent-override:95%;descent-override:22%;line-gap-override:0%}

:root{
  --rs-navy:#0B1B3A;
  --rs-navy-2:#14264D;
  --rs-navy-3:#0B1220;
  --rs-orange:#FF9F00;
  --rs-orange-2:#E07400;
  --rs-orange-soft:#FFF3E0;
  --rs-gold:#FFC107;
  --rs-green:#22C55E;
  --rs-bg:#F5F6FA;
  --rs-ink:#131A2A;
  --rs-ink-2:#4B566B;
  --rs-line:#DDE3EE;
  --rs-white:#fff;
  --rs-radius:14px;
  --rs-shadow:0 2px 10px rgba(11,27,58,.10);
}

*{box-sizing:border-box}
html{overflow-x:hidden;scroll-behavior:smooth}
body{
  margin:0;background:var(--rs-bg);color:var(--rs-ink);
  font-family:'IBM Plex Sans Thai',Plex-fb,sans-serif;
  font-size:17px;line-height:1.65;text-align:left;
}
h1,h2,h3,h4,.rs-brand{font-family:'Mitr',Mitr-fb,sans-serif;font-weight:600;line-height:1.35}
h1{font-size:1.9rem;margin:.2em 0 .5em;color:var(--rs-navy)}
h2{font-size:1.4rem;margin:1.8em 0 .6em;color:var(--rs-navy);border-left:5px solid var(--rs-orange);padding-left:.55rem}
h3{font-size:1.15rem;margin:1.4em 0 .4em;color:var(--rs-navy-2)}
p{margin:0 0 1em}
a{color:var(--rs-navy-2);text-decoration:underline;text-underline-offset:3px}
a:hover{color:var(--rs-orange-2)}
img{max-width:100%;height:auto}

.rs-wrap{max-width:960px;margin:0 auto;padding:0 16px}

/* ---------- nav ---------- */
.rs-top{background:linear-gradient(100deg,var(--rs-navy) 0%,var(--rs-navy-2) 45%,var(--rs-navy-3) 100%);color:#fff;position:sticky;top:0;z-index:40;box-shadow:var(--rs-shadow)}
.rs-top .rs-wrap{display:flex;align-items:center;gap:14px;min-height:58px;flex-wrap:wrap}
.rs-brand{color:var(--rs-orange);font-size:1.2rem;text-decoration:none;white-space:nowrap}
.rs-brand:hover{color:#fff}
.rs-menu{display:flex;gap:4px 14px;flex-wrap:wrap;margin-inline-start:auto;list-style:none;padding:0;margin-block:0}
.rs-menu a{color:#E9F3EE;text-decoration:none;font-size:.95rem;padding:6px 2px;display:inline-block}
.rs-menu a:hover{color:var(--rs-orange)}
.rs-nav-cta{background:linear-gradient(180deg,#FFA726 0%,#F98A00 52%,#E07400 100%);color:#12203A !important;padding:8px 16px !important;border-radius:999px;font-weight:600}
.rs-nav-cta:hover{background:linear-gradient(180deg,#FFB74D 0%,#FF9F00 52%,#EF8200 100%);color:#12203A !important}

/* ---------- breadcrumb ---------- */
.rs-bc{font-size:.87rem;color:var(--rs-ink-2);padding:12px 0 0}
.rs-bc a{color:var(--rs-ink-2)}
.rs-bc span{color:var(--rs-navy)}

/* ---------- hero ---------- */
.rs-hero{background:linear-gradient(100deg,var(--rs-navy) 0%,var(--rs-navy-2) 45%,var(--rs-navy-3) 100%);color:#fff;border-radius:var(--rs-radius);padding:26px 22px;margin:14px 0 26px}
.rs-hero h1{color:#fff;margin-top:0}
.rs-hero p{color:#C7D2E6;margin-bottom:1.2em}
.rs-date{display:inline-block;font-size:.85rem;color:#9FB0CC;margin-bottom:.6em}

/* ---------- ปุ่ม ---------- */
.rs-btn{display:inline-block;background:linear-gradient(180deg,#FFA726 0%,#F98A00 52%,#E07400 100%);color:#12203A;padding:13px 26px;border-radius:999px;font-weight:600;text-decoration:none;border:0;font-family:'Mitr',Mitr-fb,sans-serif;min-height:46px;line-height:1.5}
.rs-btn:hover{background:linear-gradient(180deg,#FFB74D 0%,#FF9F00 52%,#EF8200 100%);color:#12203A}
.rs-btn-ghost{background:none;color:#fff;border:2px solid var(--rs-orange)}
.rs-btn-ghost:hover{background:var(--rs-orange);color:#12203A}
.rs-btn-row{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- การ์ด / กล่อง ---------- */
.rs-card{background:var(--rs-white);border:1px solid var(--rs-line);border-radius:var(--rs-radius);padding:18px 20px;margin:18px 0;box-shadow:var(--rs-shadow)}
.rs-note{background:var(--rs-orange-soft);border-left:4px solid var(--rs-orange);border-radius:10px;padding:14px 16px;margin:18px 0}
.rs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin:18px 0}

/* ---------- ตาราง ---------- */
.rs-tbl{width:100%;border-collapse:collapse;margin:18px 0;font-size:.96rem;background:#fff;border-radius:10px;overflow:hidden}
.rs-tbl th{background:var(--rs-navy);color:#fff;text-align:left;padding:11px 12px;font-family:'Mitr',Mitr-fb,sans-serif;font-weight:500}
.rs-tbl td{padding:10px 12px;border-top:1px solid var(--rs-line)}
.rs-tbl tr:nth-child(even) td{background:#F8FAFD}
.rs-tblwrap{overflow-x:auto}

/* ---------- FAQ ---------- */
.rs-faq{margin:26px 0}
.rs-faq details{background:#fff;border:1px solid var(--rs-line);border-radius:10px;margin-bottom:10px;padding:0}
.rs-faq summary{cursor:pointer;padding:14px 16px;font-family:'Mitr',Mitr-fb,sans-serif;font-weight:500;color:var(--rs-navy);list-style:none}
.rs-faq summary::-webkit-details-marker{display:none}
.rs-faq summary::after{content:"+";float:right;color:var(--rs-orange);font-size:1.3rem;line-height:1}
.rs-faq details[open] summary::after{content:"–"}
.rs-faq .rs-ans{padding:0 16px 14px;color:var(--rs-ink-2)}

/* ---------- สารบัญ ---------- */
.rs-toc{background:#fff;border:1px dashed var(--rs-orange);border-radius:var(--rs-radius);padding:16px 20px;margin:20px 0}
.rs-toc strong{color:var(--rs-navy);font-family:'Mitr',Mitr-fb,sans-serif}
.rs-toc ol{margin:.6em 0 0;padding-inline-start:1.2em}
.rs-toc li{margin:.25em 0}

/* ---------- ลิงก์ที่เกี่ยวข้อง ---------- */
.rs-rel{margin:26px 0;padding:18px 20px;background:#EEF2FA;border-radius:var(--rs-radius)}
.rs-rel strong{font-family:'Mitr',Mitr-fb,sans-serif;color:var(--rs-navy)}
.rs-rel ul{margin:.5em 0 0;padding-inline-start:1.1em}
.rs-rel li{margin:.3em 0}

/* ---------- sticky CTA ---------- */
.rs-sticky{position:fixed;inset-inline:0;bottom:0;z-index:50;background:rgba(11,27,58,.97);padding:9px 12px;display:flex;gap:10px;align-items:center;justify-content:center;box-shadow:0 -2px 12px rgba(0,0,0,.18)}
.rs-sticky span{color:#C7D2E6;font-size:.92rem}
.rs-sticky .rs-btn{padding:10px 22px}
body{padding-bottom:74px}

/* ---------- footer ---------- */
.rs-foot{background:var(--rs-navy-3);color:#B9C4DA;margin-top:40px;padding:26px 0 20px;font-size:.93rem}
.rs-foot a{color:#B9C4DA;text-decoration:none}
.rs-foot a:hover{color:var(--rs-orange)}
.rs-foot h4{color:var(--rs-orange);margin:0 0 .6em;font-size:1rem}
.rs-foot ul{list-style:none;padding:0;margin:0}
.rs-foot li{margin:.32em 0}
.rs-foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px}
.rs-foot-btm{border-top:1px solid rgba(255,255,255,.14);margin-top:20px;padding-top:14px;font-size:.85rem;color:#8593AF}

/* ---------- 404 ---------- */
.rs-404{text-align:center;padding:40px 0}
.rs-404 .rs-code{font-family:'Mitr',Mitr-fb,sans-serif;font-size:4rem;color:var(--rs-orange);line-height:1}

/* ---------- mobile ---------- */
@media(max-width:820px){
  body{font-size:16px}
  h1{font-size:1.55rem}
  h2{font-size:1.25rem}
  .rs-menu{gap:2px 10px;font-size:.9rem}
  .rs-hero{padding:20px 16px}
  .rs-btn,.rs-btn-row .rs-btn{width:100%;text-align:center}
  .rs-sticky span{display:none}
  .rs-sticky .rs-btn{width:100%}
}

/* ---------- badge ---------- */
.rs-badge{display:inline-block;background:var(--rs-green);color:#fff;font-size:.8rem;padding:3px 11px;border-radius:999px;font-family:'Mitr',Mitr-fb,sans-serif}
.rs-badge-orange{background:var(--rs-orange);color:#12203A}