/* ═══ th28.online — สไตล์หลัก ═══════════════════════════════════════ */
:root{
  --bg:#070b1a; --surface:#0d142e; --surface-2:#111a3a;
  --text:#e9ecf5; --heading:#fbfcff; --muted:#9aa5bd;
  --gold:#ffb020; --gold-2:#ffd166; --flame:#ff5e00;
  --primary:#ffb020; --on-primary:#1a1200; --accent:#ff7a1a;
  --border:rgba(255,255,255,.12); --border-gold:rgba(255,176,32,.35);
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{background:var(--bg);color:var(--text);font-family:'Sarabun',system-ui,sans-serif;font-size:1rem;line-height:1.8;overflow-x:hidden}
h1,h2,h3,h4,h5,h6{color:var(--heading);font-weight:700;line-height:1.35}
a{color:var(--gold);text-decoration:none;transition:color .2s}
a:hover{color:var(--gold-2)}
img{max-width:100%;height:auto}
p{margin-bottom:1rem}
ul,ol{margin-bottom:1rem;padding-left:1.35rem}
li{margin-bottom:.35rem}
strong{color:var(--heading);font-weight:700}
.container{max-width:1180px;margin:0 auto;padding:0 18px}
.section-pad{padding:76px 0}
.section-title{font-size:clamp(1.5rem,3.4vw,2.05rem);font-weight:800;color:var(--heading);margin-bottom:.55rem}
.section-sub{color:var(--muted);margin-bottom:2.2rem;font-size:1.05rem;max-width:760px}
.eyebrow{display:inline-block;font-size:.82rem;letter-spacing:2px;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:.6rem}

/* ── NAVBAR ─────────────────────────────────────────────────────── */
.navbar{background:rgba(9,14,32,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);padding:10px 0;position:sticky;top:0;z-index:1030}
.navbar .container{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.navbar-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-logo{height:42px;width:auto;display:block}
.brand-word{font-size:1.6rem;font-weight:800;letter-spacing:-.5px;background:linear-gradient(135deg,var(--gold-2),var(--flame));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.navbar-toggler{display:none;background:transparent;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:6px 11px;font-size:1.3rem;cursor:pointer}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;list-style:none;padding:0;margin-bottom:0}
.nav-links a{color:var(--muted);font-weight:600;font-size:.95rem;padding:7px 12px;border-radius:8px;display:block;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--heading);background:rgba(255,176,32,.14)}
.btn-primary-glow{background:linear-gradient(135deg,var(--gold),var(--flame));color:var(--on-primary)!important;border:none;border-radius:50px;padding:11px 26px;font-size:.95rem;font-weight:800;display:inline-block;cursor:pointer;box-shadow:0 0 24px rgba(255,140,0,.42);transition:transform .22s,box-shadow .22s}
.btn-primary-glow:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(255,140,0,.7);color:var(--on-primary)!important}
.btn-outline-glow{background:transparent;color:var(--gold)!important;border:2px solid var(--border-gold);border-radius:50px;padding:9px 22px;font-size:.95rem;font-weight:700;display:inline-block;transition:all .22s}
.btn-outline-glow:hover{background:rgba(255,176,32,.12);border-color:var(--gold)}
.nav-cta{display:flex;gap:8px;align-items:center;margin-left:10px}
@media(max-width:1040px){
  .navbar-toggler{display:block;margin-left:auto}
  .nav-links{display:none;width:100%;flex-direction:column;align-items:stretch;margin-top:10px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:10px}
  .nav-links.open{display:flex}
  .nav-cta{display:none;width:100%;margin:8px 0 0;justify-content:stretch}
  .nav-cta.open{display:flex}
  .nav-cta .btn-primary-glow,.nav-cta .btn-outline-glow{flex:1;text-align:center}
}

/* ── HERO ───────────────────────────────────────────────────────── */
.hero{position:relative;overflow:hidden;padding:70px 0 64px;background:
  radial-gradient(1000px 480px at 15% -10%,rgba(255,176,32,.16),transparent 62%),
  radial-gradient(900px 460px at 88% 108%,rgba(255,94,0,.15),transparent 60%),var(--bg)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,176,32,.13);border:1px solid var(--border-gold);color:var(--gold);border-radius:50px;padding:6px 16px;font-size:.86rem;font-weight:700;margin-bottom:1.1rem}
.hero h1{font-size:clamp(1.85rem,4.4vw,3.05rem);font-weight:800;margin-bottom:1rem}
.hero h1 span{background:linear-gradient(135deg,var(--gold-2),var(--flame));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-lead{font-size:1.06rem;color:var(--muted);max-width:620px;margin-bottom:1.6rem}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:1.6rem}
.hero-figure{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border-gold);box-shadow:0 26px 70px rgba(0,0,0,.55)}
.hero-figure img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover}
.hero-figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 18px 14px;font-size:.82rem;color:#cfd7e8;background:linear-gradient(180deg,transparent,rgba(4,7,18,.92))}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:26px}}

/* ── STATS ──────────────────────────────────────────────────────── */
.stats{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:32px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
.stat-num{font-size:clamp(1.4rem,3vw,2rem);font-weight:800;color:var(--gold);line-height:1.2}
.stat-label{font-size:.9rem;color:var(--muted)}
@media(max-width:640px){.stats-grid{grid-template-columns:repeat(2,1fr)}}

/* ── CARDS / GRIDS ──────────────────────────────────────────────── */
.card-grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:linear-gradient(180deg,var(--surface-2),var(--surface));border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:transform .22s,border-color .22s,box-shadow .22s}
.card:hover{transform:translateY(-4px);border-color:var(--border-gold);box-shadow:0 18px 44px rgba(0,0,0,.45)}
.card-ico{font-size:1.85rem;line-height:1;margin-bottom:.7rem;display:block}
.card h3{font-size:1.08rem;margin-bottom:.5rem}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.card .badge{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:var(--gold);background:rgba(255,176,32,.14);border:1px solid var(--border-gold);border-radius:6px;padding:3px 9px;margin-bottom:.7rem}

/* ── FIGURE / PROSE ─────────────────────────────────────────────── */
.prose{max-width:none}
.prose h2{font-size:clamp(1.35rem,2.7vw,1.7rem);margin:2.2rem 0 .85rem;padding-top:.4rem}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.14rem;margin:1.6rem 0 .6rem;color:var(--gold-2)}
.prose p{font-size:1.02rem;color:#dbe1ee}
.prose ul,.prose ol{color:#dbe1ee}
.prose table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:.95rem;display:table}
.prose th,.prose td{border:1px solid var(--border);padding:11px 13px;text-align:left;vertical-align:top}
.prose thead th{background:rgba(255,176,32,.13);color:var(--heading);font-weight:700;white-space:nowrap}
.prose tbody tr:nth-child(even){background:rgba(255,255,255,.028)}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.4rem 0}
.figure{margin:1.6rem 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}
.figure img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{padding:11px 16px;font-size:.84rem;color:var(--muted);background:var(--surface);border-top:1px solid var(--border)}
.prose .lead{font-size:1.1rem;color:#e6ebf6}

/* ── TOC ────────────────────────────────────────────────────────── */
.toc{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--gold);border-radius:12px;padding:20px 24px;margin:1.8rem 0}
.toc h2{font-size:1rem;margin:0 0 .6rem;color:var(--gold);letter-spacing:.5px;text-transform:uppercase}
.toc ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:4px 20px}
.toc li{margin:0}
.toc a{font-size:.95rem;color:#c8d1e5}
.toc a:hover{color:var(--gold);text-decoration:underline}
@media(max-width:640px){.toc ul{grid-template-columns:1fr}}

/* ── BREADCRUMB ─────────────────────────────────────────────────── */
.crumbs{font-size:.86rem;color:var(--muted);padding:16px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:7px;padding:0;margin:0}
.crumbs li::after{content:'›';margin-left:7px;color:#5a6480}
.crumbs li:last-child::after{content:''}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--gold)}

/* ── PAGE HEAD ──────────────────────────────────────────────────── */
.page-head{padding:44px 0 30px;background:linear-gradient(180deg,rgba(255,176,32,.06),transparent)}
.page-head h1{font-size:clamp(1.6rem,3.8vw,2.45rem);margin-bottom:.7rem}
.page-head .lead{color:var(--muted);font-size:1.05rem;max-width:820px}

/* ── FAQ ────────────────────────────────────────────────────────── */
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq-q{width:100%;background:transparent;border:none;color:var(--heading);text-align:left;padding:16px 50px 16px 18px;font-size:1rem;font-weight:700;cursor:pointer;position:relative;font-family:inherit;line-height:1.6}
.faq-q::after{content:'+';position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--gold);font-weight:400}
.faq-q[aria-expanded="true"]::after{content:'−'}
.faq-a{padding:0 18px 16px;color:#d5dceb;font-size:.97rem}
.faq-a[hidden]{display:none}

/* ── STEPS ──────────────────────────────────────────────────────── */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
@media(max-width:820px){.steps{grid-template-columns:repeat(2,1fr)}}
.step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px 20px 20px;position:relative}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:-14px;left:20px;width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--flame));color:var(--on-primary);font-weight:800;display:grid;place-items:center;font-size:.95rem}
.step h3{font-size:1rem;margin:.5rem 0 .4rem}
.step p{font-size:.92rem;color:var(--muted);margin:0}

/* ── CTA BAND ───────────────────────────────────────────────────── */
.cta-band{background:linear-gradient(120deg,rgba(255,176,32,.16),rgba(255,94,0,.13));border-top:1px solid var(--border-gold);border-bottom:1px solid var(--border-gold);padding:48px 0;text-align:center}
.cta-band h2{font-size:clamp(1.3rem,3vw,1.85rem);margin-bottom:.6rem}
.cta-band p{color:#dfe5f2;max-width:700px;margin:0 auto 1.4rem}

/* ── TABLES (standalone) ────────────────────────────────────────── */
.table-block{overflow-x:auto;border:1px solid var(--border);border-radius:12px;margin:1.4rem 0}
.table-block table{width:100%;border-collapse:collapse;font-size:.94rem;margin:0}
.table-block th,.table-block td{border-bottom:1px solid var(--border);padding:11px 14px;text-align:left}
.table-block th{background:rgba(255,176,32,.12);color:var(--heading);font-weight:700}
.table-block tr:last-child td{border-bottom:none}

/* ── FORM ───────────────────────────────────────────────────────── */
.form-card{background:linear-gradient(180deg,var(--surface-2),var(--surface));border:1px solid var(--border-gold);border-radius:var(--radius);padding:30px;max-width:520px;margin:0 auto}
.form-card label{display:block;font-size:.9rem;font-weight:600;color:#cfd7e8;margin-bottom:6px}
.form-card input,.form-card select{width:100%;background:#0a1026;border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--text);font-family:inherit;font-size:.98rem;margin-bottom:16px}
.form-card input:focus,.form-card select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(255,176,32,.16)}
.form-card .btn-primary-glow{width:100%;text-align:center;margin-top:6px;padding:14px}
.form-note{font-size:.82rem;color:var(--muted);margin-top:12px;text-align:center}

/* ── FOOTER ─────────────────────────────────────────────────────── */
.site-footer{background:var(--surface);border-top:1px solid var(--border);padding:52px 0 26px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.footer-brand img{height:40px;margin-bottom:12px}
.footer-desc{font-size:.9rem;color:var(--muted);max-width:340px}
.footer-heading{font-size:.95rem;color:var(--heading);margin-bottom:.8rem;font-weight:700}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:.45rem}
.footer-links a{color:var(--muted);font-size:.9rem}
.footer-links a:hover{color:var(--gold)}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.pay-badge{font-size:.75rem;color:#cfd7e8;border:1px solid var(--border);border-radius:6px;padding:4px 10px;display:inline-flex;align-items:center;gap:5px;background:rgba(255,255,255,.03)}
.footer-bottom{border-top:1px solid var(--border);margin-top:34px;padding-top:20px;font-size:.82rem;color:#7f8aa3;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.age-note{font-size:.78rem;color:#7f8aa3;display:flex;align-items:center;gap:7px}
.age-18{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;border:1px solid #7f8aa3;font-size:.72rem;font-weight:700;color:#a9b4c9}

/* ── UTIL ───────────────────────────────────────────────────────── */
.text-gold{color:var(--gold)}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.center{text-align:center}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--gold);color:#1a1200;padding:10px 16px;z-index:2000;border-radius:0 0 8px 0;font-weight:700}
.skip-link:focus{left:0}