:root{--bg:#e5f3ff;--surface:#ffffff;--text:#111827;--heading:#0b1220;--muted:#475569;--primary:#38bdf8;--on-primary:#000000;--accent:#38bdf8;--border:rgba(2,6,23,0.12);}
*{box-sizing:border-box;margin:0;padding:0;}
body{background:var(--bg);color:var(--text);font-family:'Sarabun',sans-serif;font-size:1rem;line-height:1.7;overflow-x:hidden;}
a{color:var(--primary);text-decoration:none;}
a:hover{color:var(--accent);}
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 16px;}

/* NAVBAR */
.navbar{background:var(--surface);border-bottom:1px solid var(--border);box-shadow:0 2px 12px rgba(2,6,23,0.07);position:sticky;top:0;z-index:1030;}
.navbar-inner{display:flex;align-items:center;gap:14px;min-height:64px;flex-wrap:wrap;}
.navbar-brand{display:flex;align-items:center;gap:9px;font-weight:800;color:var(--heading);font-size:1.3rem;letter-spacing:.01em;}
.navbar-brand img{height:38px;width:auto;display:block;}
.navbar-brand .brand-sub{font-size:.72rem;font-weight:600;color:var(--muted);letter-spacing:.06em;display:block;line-height:1;}
.nav-links{display:flex;align-items:center;gap:2px;flex-wrap:wrap;margin-left:auto;list-style:none;}
.nav-link{color:var(--heading);font-weight:500;padding:.45rem .72rem;border-radius:8px;transition:background .2s,color .2s;font-size:.95rem;display:block;}
.nav-link:hover,.nav-link.active{background:var(--bg);color:var(--primary);}
.nav-cta{background:var(--primary)!important;color:var(--on-primary)!important;font-weight:700;border-radius:50px;padding:.5rem 1.3rem!important;box-shadow:0 0 18px rgba(56,189,248,.45);}
@media(max-width:900px){.nav-links{width:100%;margin-left:0;justify-content:flex-start;}}

/* MARQUEE */
.marquee-wrap{background:var(--heading);padding:.45rem 0;overflow:hidden;position:relative;}
.marquee-inner{display:flex;white-space:nowrap;animation:marquee 38s linear infinite;width:max-content;}
.marquee-inner span{padding:0 2.5rem;color:#fff;font-size:.88rem;font-weight:500;}
.marquee-inner span em{color:var(--accent);font-style:normal;font-weight:700;}
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* HERO */
.hero{position:relative;display:flex;align-items:center;overflow:hidden;background:var(--heading);padding:4.5rem 0 3.5rem;}
.hero.tall{min-height:88vh;padding:5.5rem 0;}
.hero-bg{position:absolute;inset:0;background:linear-gradient(135deg,#0b1220 0%,#0c2340 50%,#0b3a5c 100%);z-index:0;}
.hero-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.55;animation:orbFloat 8s ease-in-out infinite;}
.hero-orb.o1{width:480px;height:480px;background:var(--primary);top:-120px;right:-80px;animation-delay:0s;}
.hero-orb.o2{width:320px;height:320px;background:var(--accent);bottom:-60px;left:5%;animation-delay:-3s;}
.hero-orb.o3{width:200px;height:200px;background:#0ea5e9;top:40%;left:35%;animation-delay:-5s;}
@keyframes orbFloat{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-30px) scale(1.06)}}
.hero-content{position:relative;z-index:2;max-width:820px;}
.hero h1{font-size:clamp(1.8rem,4.4vw,3.2rem);font-weight:800;color:#fff;line-height:1.22;margin-bottom:1rem;text-shadow:0 2px 24px rgba(0,0,0,.4);}
.hero h1 span{color:var(--primary);}
.hero p.lead{color:rgba(255,255,255,.85);font-size:1.1rem;margin-bottom:1.6rem;}
.btn-glow{background:var(--primary);color:var(--on-primary);font-weight:700;font-size:1.02rem;padding:.78rem 2.1rem;border-radius:50px;border:none;box-shadow:0 0 28px rgba(56,189,248,.7);transition:transform .2s,box-shadow .2s;display:inline-block;}
.btn-glow:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 0 46px rgba(56,189,248,.9);color:var(--on-primary);}
.btn-outline-glow{background:transparent;color:#fff;border:2px solid var(--primary);font-weight:700;font-size:1.02rem;padding:.72rem 1.9rem;border-radius:50px;transition:all .2s;display:inline-block;}
.btn-outline-glow:hover{background:var(--primary);color:var(--on-primary);}
.hero-badge{display:inline-block;background:rgba(56,189,248,.18);border:1px solid rgba(56,189,248,.45);color:var(--primary);font-size:.82rem;font-weight:700;padding:.3rem 1rem;border-radius:50px;margin-bottom:1rem;letter-spacing:.04em;}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;}

/* BREADCRUMB */
.breadcrumb-bar{background:var(--surface);border-bottom:1px solid var(--border);font-size:.85rem;padding:.6rem 0;}
.breadcrumb-bar ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;color:var(--muted);}
.breadcrumb-bar li+li::before{content:"›";margin-right:.4rem;color:var(--muted);}
.breadcrumb-bar a{color:var(--muted);}
.breadcrumb-bar a:hover{color:var(--primary);}

/* CAROUSEL / PROMO SLIDES */
.carousel-section{padding:2.5rem 0;background:var(--surface);}
.promo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.2rem;}
.promo-slide{border-radius:18px;overflow:hidden;background:linear-gradient(120deg,var(--primary),var(--accent));min-height:190px;display:flex;flex-direction:column;justify-content:center;position:relative;padding:2rem 1.8rem;}
.promo-slide .promo-icon{font-size:4.2rem;opacity:.22;position:absolute;right:1.5rem;bottom:-10px;}
.promo-slide h3{color:var(--on-primary);font-weight:800;font-size:1.3rem;margin-bottom:.5rem;}
.promo-slide p{color:rgba(0,0,0,.72);font-size:.95rem;}
.promo-slide .badge-promo{background:rgba(0,0,0,.15);color:var(--on-primary);font-weight:700;border-radius:50px;padding:.25rem .9rem;font-size:.8rem;display:inline-block;margin-bottom:.7rem;width:max-content;}

/* SECTION COMMON */
section{padding:4rem 0;}
section.tight{padding:2.5rem 0;}
.section-label{font-size:.78rem;font-weight:700;letter-spacing:.12em;color:var(--primary);text-transform:uppercase;margin-bottom:.5rem;}
.section-title{font-size:clamp(1.5rem,3.2vw,2.2rem);font-weight:800;color:var(--heading);margin-bottom:1rem;}
.section-sub{color:var(--muted);font-size:1.02rem;max-width:640px;}
.divider{width:56px;height:4px;background:var(--primary);border-radius:4px;margin:1rem 0 1.6rem;}
.bg-surface{background:var(--surface);}
.bg-dark{background:var(--heading);}
.bg-dark .section-title,.bg-dark h2,.bg-dark h3{color:#fff;}
.bg-dark .section-sub,.bg-dark p{color:rgba(255,255,255,.72);}

/* ARTICLE / TOC */
.article-section{padding:3rem 0 1.5rem;background:var(--bg);}
.article h2{font-size:clamp(1.3rem,2.6vw,1.75rem);font-weight:800;color:var(--heading);margin:2.4rem 0 .9rem;line-height:1.35;}
.article h3{font-size:1.12rem;font-weight:700;color:var(--heading);margin:1.8rem 0 .6rem;}
.article p{margin-bottom:1.05rem;color:var(--text);}
.article a{font-weight:600;text-decoration:underline;text-decoration-color:rgba(56,189,248,.5);}
.article strong{color:var(--heading);}
.toc-box{background:var(--surface);border:1px solid var(--border);border-left:5px solid var(--primary);border-radius:14px;padding:1.5rem 1.6rem;margin:1.6rem 0 2.2rem;box-shadow:0 6px 22px rgba(2,6,23,.05);}
.toc-box h2{margin:0 0 .8rem!important;font-size:1.15rem!important;}
.toc-box ol{list-style:none;counter-reset:toc;}
.toc-box li{counter-increment:toc;padding:.4rem 0;border-bottom:1px dashed var(--border);}
.toc-box li:last-child{border-bottom:none;}
.toc-box li a{color:var(--heading);font-weight:600;display:flex;gap:.6rem;align-items:flex-start;text-decoration:none;}
.toc-box li a::before{content:counter(toc);flex:0 0 26px;height:26px;border-radius:50%;background:var(--bg);color:var(--primary);font-weight:800;font-size:.82rem;display:flex;align-items:center;justify-content:center;}
.toc-box li a:hover{color:var(--primary);}

/* TABLE */
.table-wrap{overflow-x:auto;margin:1.6rem 0;border-radius:16px;border:1px solid var(--border);background:var(--surface);}
table.compare-table{width:100%;border-collapse:collapse;min-width:520px;}
.compare-table caption{caption-side:top;text-align:left;padding:.9rem 1.1rem;font-weight:700;color:var(--muted);font-size:.9rem;}
.compare-table thead{background:var(--primary);}
.compare-table thead th{color:var(--on-primary);font-weight:700;padding:.85rem 1.1rem;text-align:left;font-size:.95rem;}
.compare-table tbody tr:nth-child(even){background:var(--bg);}
.compare-table td,.compare-table th{padding:.8rem 1.1rem;vertical-align:middle;font-size:.95rem;border-top:1px solid var(--border);}
.check-yes{color:#22c55e;font-size:1.15rem;margin-right:.35rem;}
.check-no{color:#ef4444;font-size:1.15rem;margin-right:.35rem;}

/* FEATURES / STEPS / CARDS */
.grid{display:grid;gap:1.4rem;}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));}
.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:1.7rem 1.4rem;height:100%;transition:transform .25s,box-shadow .25s;}
.feature-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(56,189,248,.18);}
.feature-icon{width:54px;height:54px;background:var(--bg);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.55rem;color:var(--primary);margin-bottom:1rem;}
.feature-card h5{color:var(--heading);font-weight:700;margin-bottom:.5rem;}
.feature-card p{color:var(--muted);font-size:.95rem;}
.steps-section{background:var(--surface);}
.step-item{padding:1.3rem 1rem;}
.step-num{width:60px;height:60px;border-radius:50%;background:var(--primary);color:var(--on-primary);font-size:1.5rem;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:1rem;}
.step-item h5{color:var(--heading);font-weight:700;margin-bottom:.4rem;}
.step-item p{color:var(--muted);font-size:.95rem;}
.pricing-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:2rem 1.7rem;height:100%;transition:transform .25s,box-shadow .25s;position:relative;}
.pricing-card.featured{border-color:var(--primary);box-shadow:0 0 36px rgba(56,189,248,.22);}
.pricing-card.featured::before{content:'แนะนำ';position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--primary);color:var(--on-primary);font-size:.78rem;font-weight:800;padding:.28rem 1.2rem;border-radius:50px;}
.pricing-card:hover{transform:translateY(-5px);box-shadow:0 14px 40px rgba(56,189,248,.18);}
.pricing-card .price{font-size:2rem;font-weight:800;color:var(--heading);}
.pricing-card .price span{font-size:.95rem;color:var(--muted);font-weight:400;}
.pricing-card ul{list-style:none;padding:0;margin:1.1rem 0;}
.pricing-card ul li{padding:.4rem 0;color:var(--text);font-size:.95rem;border-bottom:1px solid var(--border);}
.pricing-card ul li:last-child{border-bottom:none;}
.pricing-card ul li i{color:var(--primary);margin-right:.5rem;}
.payment-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:1.4rem 1rem;text-align:center;transition:all .25s;}
.payment-card:hover{background:rgba(56,189,248,.15);border-color:var(--primary);transform:translateY(-4px);}
.payment-card i{font-size:2rem;color:rgba(255,255,255,.45);transition:color .25s;}
.payment-card:hover i{color:var(--primary);}
.payment-card .pay-name{color:#fff;font-weight:700;font-size:.92rem;margin:.55rem 0 .25rem;}
.payment-card .pay-tag{background:rgba(56,189,248,.25);color:var(--primary);font-size:.72rem;font-weight:700;padding:.15rem .65rem;border-radius:50px;}
.support-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:1.4rem 1.1rem;transition:transform .25s,box-shadow .25s;}
.support-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(56,189,248,.18);}
.support-card i{font-size:1.9rem;color:var(--muted);transition:color .25s;margin-bottom:.7rem;display:block;}
.support-card:hover i{color:var(--primary);}
.support-card h6{color:var(--heading);font-weight:700;margin-bottom:.35rem;}
.support-card p{color:var(--muted);font-size:.88rem;}
.testi-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:1.6rem 1.5rem;height:100%;}
.testi-stars{color:var(--primary);font-size:.95rem;margin-bottom:.7rem;}
.testi-text{color:var(--text);font-size:.95rem;margin-bottom:1.1rem;}
.testi-author{display:flex;align-items:center;gap:.85rem;}
.testi-avatar{width:44px;height:44px;border-radius:50%;background:var(--bg);border:2px solid var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--primary);font-size:1.05rem;}
.testi-name{font-weight:700;color:var(--heading);font-size:.93rem;}
.testi-city{font-size:.8rem;color:var(--muted);}

/* IMAGES */
.content-img{width:100%;border-radius:16px;object-fit:cover;display:block;margin:1.4rem 0;}
.img-figure{margin:1.5rem 0;}
.img-figure figcaption{font-size:.85rem;color:var(--muted);margin-top:.5rem;}

/* FAQ */
.faq-list{margin:1.4rem 0;}
details.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.05rem 1.3rem;margin-bottom:.85rem;transition:box-shadow .2s,border-color .2s;}
details.faq-item[open]{border-color:var(--primary);box-shadow:0 8px 26px rgba(56,189,248,.15);}
details.faq-item summary{font-weight:700;color:var(--heading);cursor:pointer;list-style:none;display:flex;gap:.6rem;align-items:flex-start;font-size:1rem;}
details.faq-item summary::-webkit-details-marker{display:none;}
details.faq-item summary::before{content:"\F128";font-family:"bootstrap-icons";color:var(--primary);font-size:.9rem;margin-top:.28rem;flex:0 0 auto;}
details.faq-item[open] summary::before{content:"\F126";}
details.faq-item p{margin:.8rem 0 0;color:var(--muted);font-size:.96rem;}

/* NOTICES / CTA */
.privacy-notice{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:12px;padding:1.3rem 1.5rem;margin:1.8rem 0;}
.privacy-notice i{color:var(--primary);margin-right:.5rem;}
.privacy-notice p{color:var(--muted);font-size:.93rem;margin:0;}
.cta-band{background:linear-gradient(120deg,#0b1220,#0c2340 55%,#0b3a5c);border-radius:22px;padding:2.6rem 2rem;text-align:center;position:relative;overflow:hidden;}
.cta-band h2{color:#fff;font-weight:800;font-size:clamp(1.3rem,2.8vw,1.8rem);margin-bottom:.7rem;}
.cta-band p{color:rgba(255,255,255,.82);max-width:720px;margin:0 auto 1.4rem;}
.related-links{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem;margin:1.2rem 0;}
.related-links li a{display:inline-block;background:var(--surface);border:1px solid var(--border);border-radius:50px;padding:.35rem 1rem;font-size:.9rem;font-weight:600;color:var(--heading);}
.related-links li a:hover{border-color:var(--primary);color:var(--primary);}
.disclaimer-bar{background:#fff7ed;border:1px solid #fed7aa;color:#7c2d12;border-radius:12px;padding:.9rem 1.2rem;font-size:.88rem;margin:1.6rem 0 0;}

/* FOOTER */
footer{background:var(--heading);color:rgba(255,255,255,.75);padding:3.2rem 0 1.4rem;margin-top:2rem;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem;}
@media(max-width:820px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr;}}
footer .footer-brand{margin-bottom:1rem;display:flex;align-items:center;gap:.6rem;font-weight:800;color:#fff;font-size:1.2rem;}
footer .footer-brand img{height:34px;}
footer p{font-size:.92rem;}
footer .footer-title{color:#fff;font-weight:700;font-size:1rem;margin-bottom:.9rem;}
footer ul{list-style:none;padding:0;}
footer ul li{margin-bottom:.45rem;}
footer ul li a{color:rgba(255,255,255,.65);font-size:.92rem;transition:color .2s;}
footer ul li a:hover{color:var(--primary);}
footer .footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:2.2rem;padding-top:1.1rem;font-size:.85rem;color:rgba(255,255,255,.45);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;}
footer .footer-bottom a{color:rgba(255,255,255,.55);}
footer .footer-bottom a:hover{color:var(--primary);}
.page-signature{font-size:.85rem;color:rgba(255,255,255,.5);margin-top:.5rem;}

.text-center{text-align:center;}
.mt-2{margin-top:1.4rem;}
.mb-0{margin-bottom:0;}