:root{--ink:#12304a;--blue:#2d7fc1;--sky:#dff3ff;--gold:#d3a62d;--gold2:#ffe49a;--cream:#fffaf0;--pink:#ffe8ef;--mint:#e6f7ef;--white:#fff;--line:#d9e5ed;--shadow:0 18px 45px rgba(20,65,96,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Noto Sans Thai","Tahoma",sans-serif;background:linear-gradient(180deg,#fff 0,#f9fcff 60%,#fffaf1 100%);line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(1180px,calc(100% - 32px));margin-inline:auto}.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(211,166,45,.25)}.nav-inner{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:900;color:var(--blue)}.brand img{object-fit:contain}.nav-links{display:flex;align-items:center;gap:24px;font-weight:700}.hero{position:relative;overflow:hidden;padding:84px 0;background:radial-gradient(circle at 15% 10%,var(--gold2),transparent 28%),radial-gradient(circle at 85% 80%,var(--pink),transparent 25%),linear-gradient(135deg,var(--cream),var(--sky))}.hero:after{content:"";position:absolute;width:320px;height:320px;border:2px solid rgba(211,166,45,.3);border-radius:50%;right:-100px;top:-110px}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:58px;align-items:center}.hero h1{font-size:clamp(2.35rem,5vw,4.8rem);line-height:1.12;margin:14px 0 20px;letter-spacing:-.035em}.article-hero h1{font-size:clamp(2rem,4vw,3.7rem)}.hero h1 em{font-style:normal;color:var(--blue)}.lead{font-size:1.18rem;color:#3c5b70;max-width:760px}.eyebrow{display:inline-block;color:#7a5900;font-weight:900;letter-spacing:.05em;text-transform:uppercase;background:var(--gold2);padding:5px 13px;border-radius:999px}.hero-image{padding:12px;background:rgba(255,255,255,.65);border:1px solid rgba(211,166,45,.45);border-radius:32px;box-shadow:var(--shadow);transform:rotate(1.2deg)}.hero-image img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:23px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.btn{border:0;display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:13px;background:linear-gradient(135deg,#e0b644,#b98208);color:#fff;font-weight:900;box-shadow:0 10px 25px rgba(185,130,8,.23);cursor:pointer}.btn:hover{transform:translateY(-2px)}.btn.ghost{background:#fff;color:var(--blue);border:1px solid #b8d8eb;box-shadow:none}.btn.dark{background:var(--ink)}.btn.small{padding:9px 15px}main section{padding-block:62px}.stats{margin-top:-28px;position:relative;z-index:2;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(3,1fr);padding:22px}.stats div{text-align:center;border-right:1px solid var(--line)}.stats div:last-child{border:0}.stats strong{font-size:1.8rem;color:var(--blue);display:block}.stats span{color:#587287}.section-head{text-align:center;max-width:760px;margin:0 auto 32px}.section-head h2,.content h2,.feature h2,.business-cta h2{font-size:clamp(1.65rem,3vw,2.5rem);line-height:1.3;margin:12px 0}.category-list{display:grid;gap:15px}.category{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 8px 25px rgba(20,65,96,.06)}.category summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;padding:19px 22px;background:linear-gradient(90deg,#fff,var(--sky))}.category summary::-webkit-details-marker{display:none}.category summary b{display:block;font-size:1.15rem}.category summary small{color:#587287}.plus{font-size:1.6rem;color:var(--gold)}.topic-grid{padding:18px;display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.topic-grid a{display:flex;gap:10px;padding:9px 12px;border-radius:10px;background:#f7fbfd}.topic-grid a:hover{background:var(--gold2)}.topic-grid a span{color:var(--blue);font-size:.78rem;font-weight:900}.cards{display:grid;gap:18px}.cards.three{grid-template-columns:repeat(3,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 8px 25px rgba(20,65,96,.06)}.icon{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--gold2);color:#765200;font-weight:900}.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.gallery a{overflow:hidden;border-radius:18px;border:5px solid #fff;box-shadow:var(--shadow)}.gallery img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:.35s}.gallery a:hover img{transform:scale(1.04)}.business-cta{margin-block:60px;padding:34px!important;border-radius:25px;background:linear-gradient(135deg,var(--gold2),var(--pink) 50%,var(--sky));border:1px solid rgba(211,166,45,.35);display:flex;align-items:center;justify-content:space-between;gap:32px}.business-cta p{max-width:780px}.breadcrumb{font-size:.9rem;color:#648094;display:flex;gap:8px;flex-wrap:wrap;margin:28px 0}.content{max-width:980px}.content>section{padding-block:42px;border-bottom:1px solid var(--line)}.answer-box{background:linear-gradient(135deg,var(--mint),var(--sky));border:1px solid #b9decf!important;border-radius:22px;padding:28px!important}.answer-label{font-weight:900;color:#147452}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px}table{width:100%;border-collapse:collapse;background:#fff}th,td{text-align:left;padding:14px;border-bottom:1px solid var(--line)}th{background:var(--sky)}.calculator{display:grid;grid-template-columns:1fr 1fr;gap:32px;background:var(--ink);color:#fff;padding:32px!important;border:7px solid var(--gold2)!important;border-radius:24px}.calc-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.calc-form label{font-size:.9rem}.calc-form input{width:100%;padding:12px;margin-top:5px;border-radius:10px;border:0;font:inherit}.calc-form output{grid-column:1/-1;padding:16px;text-align:center;background:#fff;color:var(--ink);border-radius:12px;font-size:1.25rem;font-weight:900}.checklist{list-style:none;padding:0;display:grid;gap:10px}.checklist li{padding:13px 16px 13px 48px;background:#fff;border:1px solid var(--line);border-radius:12px;position:relative}.checklist li:before{content:"✓";position:absolute;left:16px;color:#178153;font-weight:900}.faq{display:grid;gap:10px}.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px 18px}.faq summary{font-weight:900;cursor:pointer}.related{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.related a{display:flex;flex-direction:column;padding:16px;background:#fff;border:1px solid var(--line);border-radius:14px}.related span{font-size:.78rem;color:var(--blue);font-weight:900}footer{background:#102b40;color:#dceaf3;padding:55px 0;margin-top:60px}footer .brand{color:#fff}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:40px}.footer-grid>div{display:flex;flex-direction:column;align-items:flex-start;gap:8px}footer h3{color:var(--gold2);margin:0}footer p{margin:5px 0;color:#b8cedc}@media(max-width:800px){.nav-links a:not(.btn){display:none}.hero{padding:52px 0}.hero-grid,.calculator{grid-template-columns:1fr}.hero-image{order:-1}.topic-grid,.cards.three,.gallery,.related{grid-template-columns:1fr}.stats{grid-template-columns:1fr}.stats div{border-right:0;border-bottom:1px solid var(--line);padding:9px}.business-cta{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.calc-form{grid-template-columns:1fr}.calc-form output{grid-column:auto}}