:root{--bg:#f8fafc;--surface:#ffffff;--text:#0f172a;--muted:#64748b;--brand:#f59e0b;--brand-dark:#b45309;--accent:#0ea5e9;--border:#e2e8f0;--shadow:0 20px 60px rgba(15,23,42,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:'Noto Sans Thai',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}.container{width:min(1120px,92%);margin:auto}.site-header{position:sticky;top:0;z-index:99;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.navbar{display:flex;align-items:center;justify-content:space-between;padding:14px 0}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-size:1.35rem;font-weight:800}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--brand),#fde68a);color:#111827;font-weight:900}.nav-links{display:flex;align-items:center;gap:22px}.nav-links a{text-decoration:none;color:var(--text);font-weight:600}.nav-cta{background:var(--text);color:white!important;padding:9px 16px;border-radius:999px}.menu-toggle{display:none;border:0;background:transparent;font-size:1.8rem}.section{padding:88px 0}.hero{background:radial-gradient(circle at top left,#fff7ed 0,#f8fafc 36%,#eef6ff 100%);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.eyebrow{color:var(--brand-dark);font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin:0 0 8px}.hero h1,.section-heading h2,.portfolio h2,.contact h2{font-size:clamp(2rem,5vw,4.2rem);line-height:1.12;margin:0 0 18px}.section-heading h2,.portfolio h2,.contact h2{font-size:clamp(1.8rem,3.5vw,3rem)}.hero-subtitle,.section-heading p,.portfolio p,.contact p{color:var(--muted);font-size:1.08rem}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:16px;text-decoration:none;font-weight:800;border:1px solid transparent}.btn-primary{background:linear-gradient(135deg,var(--brand),#f97316);color:#111827}.btn-secondary{background:white;color:var(--text);border-color:var(--border)}.full{width:100%;margin-top:12px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}.stats div{background:white;border:1px solid var(--border);padding:16px;border-radius:18px}.stats strong{display:block;font-size:1.3rem}.stats span{color:var(--muted);font-size:.92rem}.hero-card{position:relative;min-height:480px;border-radius:34px;background:linear-gradient(160deg,#0f172a,#1e293b);box-shadow:var(--shadow);overflow:hidden;padding:28px}.device-visual{position:absolute;inset:90px 40px 90px;border:1px solid rgba(255,255,255,.15);border-radius:30px;background:rgba(255,255,255,.05)}.chip{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:120px;height:120px;border-radius:26px;background:#fbbf24;color:#111827;font-weight:900;font-size:1.6rem;box-shadow:0 0 0 12px rgba(251,191,36,.14)}.line{position:absolute;background:rgba(14,165,233,.85);height:4px;border-radius:999px}.line-a{width:170px;left:70px;top:105px}.line-b{width:150px;right:75px;bottom:120px}.line-c{width:4px;height:140px;left:50%;top:30px}.node{position:absolute;width:22px;height:22px;border-radius:50%;background:white;box-shadow:0 0 0 8px rgba(255,255,255,.12)}.n1{left:55px;top:96px}.n2{right:62px;bottom:111px}.n3{left:calc(50% - 9px);top:28px}.device-card{position:absolute;left:28px;right:28px;display:flex;gap:14px;background:rgba(255,255,255,.94);border-radius:24px;padding:18px;box-shadow:var(--shadow)}.top-card{top:28px}.bottom-card{bottom:28px}.device-card h3{margin:0}.device-card p{margin:4px 0 0;color:var(--muted)}.icon{font-size:2rem}.section-heading{text-align:center;max-width:760px;margin:0 auto 42px}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.service-card{background:var(--surface);border:1px solid var(--border);border-radius:26px;padding:26px;box-shadow:0 10px 30px rgba(15,23,42,.06);transition:.25s}.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}.service-card span{font-size:2.1rem}.service-card h3{margin:12px 0 6px}.service-card p{color:var(--muted);margin:0}.process{background:white}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{border:1px solid var(--border);border-radius:26px;padding:24px;background:#f8fafc}.step b{color:var(--brand-dark);font-size:1.5rem}.step h3{margin:8px 0}.step p{color:var(--muted);margin:0}.portfolio-box{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;background:linear-gradient(135deg,#fff7ed,#e0f2fe);border-radius:34px;padding:44px;border:1px solid white}.portfolio-tags{display:flex;flex-wrap:wrap;gap:12px}.portfolio-tags span{background:white;border:1px solid var(--border);border-radius:999px;padding:10px 16px;font-weight:700}.contact-grid{display:grid;grid-template-columns:1fr 420px;gap:36px;align-items:start}.contact-card{background:white;border:1px solid var(--border);border-radius:28px;padding:28px;box-shadow:var(--shadow)}.contact-card h3{margin-top:0}.contact-card small{display:block;color:var(--muted);margin-top:12px}.site-footer{background:#0f172a;color:white;padding:26px 0}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-inner p{margin:0;color:#cbd5e1}@media(max-width:900px){.hero-grid,.portfolio-box,.contact-grid{grid-template-columns:1fr}.service-grid,.timeline{grid-template-columns:repeat(2,1fr)}.hero-card{min-height:420px}}@media(max-width:640px){.nav-links{display:none;position:absolute;left:4%;right:4%;top:72px;background:white;border:1px solid var(--border);border-radius:22px;padding:18px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}.nav-links.active{display:flex}.menu-toggle{display:block}.stats,.service-grid,.timeline{grid-template-columns:1fr}.section{padding:64px 0}.hero-card{min-height:380px}.footer-inner{display:block}.hero-actions .btn{width:100%}}