* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Noto Sans Thai', -apple-system, sans-serif; color: #0f172a; background: #fff; line-height: 1.6; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.btn { display: inline-block; border: none; border-radius: 12px; padding: 14px 30px; font-family: inherit; font-size: 16px; font-weight: 800; cursor: pointer; text-decoration: none; }
.btn-main { background: #0d9488; color: #fff; box-shadow: 0 8px 22px rgba(13,148,136,.32); }
.btn-main:hover { background: #0f766e; }
.btn-ghost { background: rgba(255,255,255,.15); color: #fff; border: 1.5px solid rgba(255,255,255,.5); }
/* hero */
.hero { background: linear-gradient(150deg, #0d9488 0%, #0f766e 45%, #134e4a 100%); color: #fff; padding: 70px 0 96px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; width: 620px; height: 620px; border-radius: 50%; background: rgba(255,255,255,.06); top: -260px; right: -180px; }
.hero .wrap { position: relative; z-index: 1; }
.brand { font-size: 20px; font-weight: 900; margin-bottom: 46px; }
.hero h1 { font-size: 42px; font-weight: 900; line-height: 1.28; letter-spacing: -.01em; }
.hero p.sub { font-size: 17px; opacity: .93; margin: 16px 0 30px; max-width: 620px; }
.hero .chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; font-size: 13.5px; }
.hero .chips span { background: rgba(255,255,255,.16); border-radius: 20px; padding: 6px 15px; font-weight: 600; }
/* sections */
section { padding: 66px 0; }
h2 { font-size: 29px; font-weight: 900; text-align: center; }
.lead { text-align: center; color: #64748b; margin: 10px auto 38px; max-width: 620px; font-size: 15px; }
.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; }
.card { border: 1.5px solid #e2e8f0; border-radius: 18px; padding: 26px 24px; background: #fff; transition: .15s; }
.card:hover { border-color: #99f6e4; box-shadow: 0 12px 34px rgba(15,23,42,.09); transform: translateY(-2px); }
.card .ic { font-size: 40px; }
.card h3 { font-size: 19px; font-weight: 900; margin: 12px 0 4px; }
.card .who { color: #0f766e; font-size: 13px; font-weight: 700; margin-bottom: 12px; }
.card ul { list-style: none; font-size: 14px; color: #334155; }
.card ul li { padding: 5px 0 5px 26px; position: relative; }
.card ul li::before { content: '✓'; position: absolute; left: 0; color: #0d9488; font-weight: 900; }
.alt { background: #f6f9fb; }
.feat { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.feat div { background: #fff; border: 1.5px solid #e8edf2; border-radius: 14px; padding: 18px 20px; }
.feat b { display: block; font-size: 15px; margin-bottom: 3px; }
.feat span { font-size: 13.5px; color: #64748b; }
/* pricing */
.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; max-width: 880px; margin: 0 auto; }
.price { border: 2px solid #e2e8f0; border-radius: 18px; padding: 26px 24px; text-align: center; background: #fff; }
.price.hot { border-color: #0d9488; box-shadow: 0 12px 30px rgba(13,148,136,.14); }
.price .nm { font-weight: 800; font-size: 16px; }
.price .amt { font-size: 34px; font-weight: 900; color: #0f766e; margin: 8px 0 2px; }
.price .per { color: #94a3b8; font-size: 13px; }
.price .note { font-size: 13.5px; color: #475569; margin-top: 12px; min-height: 40px; }
/* form */
.formbox { max-width: 560px; margin: 0 auto; background: #fff; border: 1.5px solid #e2e8f0; border-radius: 20px; padding: 30px 28px; box-shadow: 0 14px 40px rgba(15,23,42,.07); }
label { display: block; font-size: 13px; font-weight: 700; color: #475569; margin: 14px 0 6px; }
input { width: 100%; padding: 13px 15px; border: 1.5px solid #e2e8f0; border-radius: 12px; font-family: inherit; font-size: 15px; outline: none; }
input:focus { border-color: #0d9488; box-shadow: 0 0 0 3px rgba(13,148,136,.12); }
.types { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.types button { border: 2px solid #e2e8f0; background: #fff; border-radius: 14px; padding: 14px 6px; cursor: pointer; font-family: inherit; text-align: center; }
.types button.on { border-color: #0d9488; background: #f0fdfa; }
.types .e { font-size: 26px; display: block; }
.types .t { font-size: 12.5px; font-weight: 800; margin-top: 4px; display: block; }
.msg { margin-top: 14px; font-size: 14px; border-radius: 12px; padding: 12px 15px; display: none; }
.msg.err { background: #fef2f2; color: #b91c1c; display: block; }
.msg.wait { background: #fffbeb; color: #92400e; display: block; }
.done { background: #f0fdfa; border: 2px solid #0d9488; border-radius: 16px; padding: 22px; margin-top: 18px; display: none; }
.done.show { display: block; }
.done .row { display: flex; justify-content: space-between; gap: 10px; padding: 7px 0; border-bottom: 1px dashed #99f6e4; font-size: 14.5px; }
.done .row b { font-family: ui-monospace, Menlo, monospace; }
footer { background: #0f172a; color: #94a3b8; padding: 34px 0; font-size: 13.5px; text-align: center; }
@media (max-width: 640px) { .hero h1 { font-size: 30px; } h2 { font-size: 23px; } section { padding: 46px 0; } }