*,*:before,*:after{box-sizing:border-box}:root{--color-primary: #1976d2;--color-primary-hover: #1565c0;--color-secondary: #424242;--color-text: #1a1a1a;--color-text-muted: #616161;--color-bg: #ffffff;--color-bg-alt: #f8fafc;--color-border: #e0e0e0;--radius: 6px;--max-width: 1100px;--header-height: 64px}html{scroll-behavior:smooth}body{margin:0;font-family:Noto Sans Thai,system-ui,sans-serif;font-size:1rem;line-height:1.6;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.skip-link{position:absolute;top:-100%;left:1rem;z-index:1000;padding:.75rem 1rem;background:var(--color-primary);color:#fff;border-radius:var(--radius);font-weight:600;text-decoration:none}.skip-link:focus{top:1rem}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 1.25rem}.site-header{position:sticky;top:0;z-index:100;height:var(--header-height);background:#ffffffeb;backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-height)}.site-header nav{display:flex;align-items:center;gap:.5rem}.nav-link{padding:.5rem .75rem;font-weight:500;color:var(--color-text);text-decoration:none;border-radius:var(--radius)}.nav-link:hover{color:var(--color-primary);text-decoration:none;background:var(--color-bg-alt)}@media(max-width:480px){.site-header nav .nav-link{display:none}.site-header nav .btn--ghost{display:none}.site-header nav .btn--primary{padding-inline:1rem;font-size:.9375rem}}.brand{display:flex;align-items:center;gap:.625rem;font-weight:700;font-size:1.125rem;color:var(--color-text);text-decoration:none}.brand:hover{text-decoration:none}.brand__logo{width:32px;height:32px;object-fit:contain}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:.625rem 1.5rem;font-family:inherit;font-size:1rem;font-weight:600;line-height:1.25;border-radius:var(--radius);border:2px solid transparent;cursor:pointer;text-decoration:none;transition:background .15s ease,border-color .15s ease}.btn:hover{text-decoration:none}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover{background:var(--color-primary-hover);color:#fff}.btn--outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}.btn--outline:hover{background:#1976d214;color:var(--color-primary)}.btn--ghost{background:transparent;color:var(--color-secondary);border-color:transparent;min-height:auto;padding:.5rem .75rem}.btn--ghost:hover{color:var(--color-primary);background:#1976d20f}.btn-group{display:flex;flex-wrap:wrap;gap:.75rem}.hero{padding:3.5rem 0 4rem;text-align:center}.hero__badge{display:inline-block;margin-bottom:1rem;padding:.375rem .875rem;font-size:.875rem;font-weight:600;color:var(--color-primary);background:#1976d21a;border-radius:999px}.hero h1{margin:0 0 1rem;font-size:clamp(1.75rem,5vw,2.5rem);font-weight:700;line-height:1.25;letter-spacing:-.02em}.hero__lead{margin:0 auto 2rem;max-width:36rem;font-size:1.125rem;color:var(--color-text-muted)}.hero .btn-group{justify-content:center}.section{padding:4rem 0}.section--alt{background:var(--color-bg-alt)}.section__header{text-align:center;margin-bottom:2.5rem}.section__header h2{margin:0 0 .5rem;font-size:clamp(1.5rem,4vw,2rem);font-weight:700}.section__header p{margin:0;color:var(--color-text-muted);max-width:32rem;margin-inline:auto}.features-grid{display:grid;gap:1.25rem;grid-template-columns:1fr}@media(min-width:640px){.features-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:900px){.features-grid{grid-template-columns:repeat(3,1fr)}}.feature-card{padding:1.5rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius)}.section--alt .feature-card{background:var(--color-bg)}.feature-card__icon{width:40px;height:40px;margin-bottom:1rem;color:var(--color-primary)}.feature-card h3{margin:0 0 .5rem;font-size:1.0625rem;font-weight:600}.feature-card p{margin:0;font-size:.9375rem;color:var(--color-text-muted)}.pricing-grid{display:grid;gap:1.25rem;grid-template-columns:1fr;max-width:720px;margin:0 auto}@media(min-width:640px){.pricing-grid{grid-template-columns:repeat(2,1fr)}}.pricing-card{padding:2rem 1.5rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);display:flex;flex-direction:column}.pricing-card--featured{border-color:var(--color-primary);box-shadow:0 0 0 1px var(--color-primary)}.pricing-card__name{margin:0 0 .25rem;font-size:1.125rem;font-weight:600}.pricing-card__price{margin:0 0 1rem;font-size:2rem;font-weight:700;color:var(--color-primary)}.pricing-card__price span{font-size:1rem;font-weight:400;color:var(--color-text-muted)}.pricing-card ul{margin:0 0 1.5rem;padding:0;list-style:none;flex:1}.pricing-card li{padding:.375rem 0 .375rem 1.5rem;position:relative;font-size:.9375rem;color:var(--color-text-muted)}.pricing-card li:before{content:"✓";position:absolute;left:0;color:var(--color-primary);font-weight:700}.pricing-card .btn{width:100%}.faq-list{max-width:40rem;margin:0 auto}.faq-item{border-bottom:1px solid var(--color-border)}.faq-item summary{padding:1.125rem 0;font-weight:600;cursor:pointer;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";float:right;font-weight:400;color:var(--color-text-muted)}.faq-item[open] summary:after{content:"−"}.faq-item p{margin:0 0 1.125rem;color:var(--color-text-muted);font-size:.9375rem}.cta-band{padding:3.5rem 0;text-align:center;background:var(--color-primary);color:#fff}.cta-band h2{margin:0 0 .5rem;font-size:clamp(1.375rem,4vw,1.75rem);font-weight:700}.cta-band p{margin:0 auto 1.5rem;max-width:28rem;opacity:.92}.cta-band .btn--primary{background:#fff;color:var(--color-primary)}.cta-band .btn--primary:hover{background:#f0f4f8}.site-footer{padding:2rem 0;border-top:1px solid var(--color-border);font-size:.875rem;color:var(--color-text-muted)}.site-footer__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem}.site-footer nav{display:flex;flex-wrap:wrap;gap:1rem 1.5rem}.site-footer a{color:var(--color-text-muted)}.site-footer a:hover{color:var(--color-primary)}.blog-list{list-style:none;margin:0;padding:0;display:grid;gap:1.5rem}.blog-card{padding:1.5rem;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-bg)}.blog-card time{display:block;font-size:.875rem;color:var(--color-text-muted);margin-bottom:.5rem}.blog-card h2{margin:0 0 .75rem;font-size:1.25rem;line-height:1.35}.blog-card h2 a{color:var(--color-text);text-decoration:none}.blog-card h2 a:hover{color:var(--color-primary)}.blog-card p{margin:0 0 1rem;color:var(--color-text-muted);font-size:.9375rem}.blog-card__link{font-weight:600;font-size:.9375rem}.article__container{max-width:42rem}.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:.375rem;margin-bottom:1.5rem;font-size:.875rem;color:var(--color-text-muted)}.breadcrumb a{color:var(--color-text-muted)}.breadcrumb a:hover{color:var(--color-primary)}.breadcrumb [aria-current=page]{color:var(--color-text)}.article__header{margin-bottom:2rem}.article__header h1{margin:0 0 .75rem;font-size:clamp(1.5rem,4vw,2rem);line-height:1.25}.article__meta{margin:0;font-size:.9375rem;color:var(--color-text-muted)}.article__content{font-size:1.0625rem;line-height:1.75}.article__content :global(h2){margin:2rem 0 1rem;font-size:1.375rem;line-height:1.3}.article__content :global(h3){margin:1.5rem 0 .75rem;font-size:1.125rem}.article__content :global(p){margin:0 0 1.25rem}.article__content :global(ul),.article__content :global(ol){margin:0 0 1.25rem;padding-left:1.5rem}.article__content :global(li){margin-bottom:.5rem}.article__content :global(table){width:100%;margin:0 0 1.5rem;border-collapse:collapse;font-size:.9375rem}.article__content :global(th),.article__content :global(td){padding:.625rem .75rem;border:1px solid var(--color-border);text-align:left}.article__content :global(th){background:var(--color-bg-alt);font-weight:600}.article__content :global(hr){margin:2rem 0;border:none;border-top:1px solid var(--color-border)}.article__content :global(a){font-weight:500}.article__content :global(strong){font-weight:600}.article-cta{margin-top:3rem;padding:2rem;text-align:center;background:var(--color-bg-alt);border-radius:var(--radius);border:1px solid var(--color-border)}.article-cta h2{margin:0 0 .5rem;font-size:1.25rem}.article-cta p{margin:0 0 1.25rem;color:var(--color-text-muted)}
