/* khukan เช็กหุ้นส่วน landing — clean, blue */
:root { --bg: #f6f9ff; --text: #0a1b3d; --muted: #5d6b8a; --blue: #1f5eff; --blue2: #0b3fd1; --sky: #e8f0ff; --line: #e3eaf8;
  --shadow: 0 18px 44px -26px rgba(16, 52, 140, .35); --font: "Prompt", system-ui, sans-serif; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--blue); }
.nw { white-space: nowrap; }
main { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

.pt-top { max-width: 1120px; margin: 0 auto; padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.pt-brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 24px; letter-spacing: -.02em; color: var(--text); text-decoration: none; }
.pt-brand img { width: 30px; height: auto; } .pt-brand b { color: var(--blue); }
.pt-brand.sm { font-size: 17px; } .pt-brand.sm img { width: 20px; }
.pt-nav { display: flex; align-items: center; gap: 20px; }
.pt-nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.pt-nav a:not(.pt-pill) { display: none; }
.pt-pill { background: var(--blue); color: #fff !important; padding: 9px 18px; border-radius: 999px; font-weight: 600; }

.pt-hero { position: relative; display: grid; gap: 8px; padding: 18px 0 0; }
.pt-kicker { margin: 0 0 8px; color: var(--blue); font-weight: 600; font-size: 14px; letter-spacing: .02em; }
.pt-copy h1 { font-size: clamp(30px, 8.4vw, 60px); line-height: 1.18; margin: 0 0 14px; font-weight: 700; letter-spacing: -.01em; }
.pt-accent { color: var(--blue); }
.pt-lead { font-size: 16px; color: #33426a; margin: 0 0 22px; max-width: 34em; }
.pt-btn { display: inline-flex; align-items: center; gap: 10px; min-height: 56px; padding: 0 28px; border-radius: 999px; font-size: 17px; font-weight: 600;
  color: #fff; text-decoration: none; background: linear-gradient(135deg, #3a78ff, var(--blue2)); box-shadow: 0 14px 30px -12px rgba(31, 94, 255, .6); transition: transform .15s; }
.pt-btn:hover { transform: translateY(-1px); } .pt-btn i { font-style: normal; }
.pt-btn.light { background: #fff; color: var(--blue2); box-shadow: none; }
.pt-note { margin: 10px 4px 0; color: var(--muted); font-size: 13px; }
.pt-photo { margin: 18px -20px 0; position: relative; }
.pt-photo::before { content: ""; position: absolute; inset: 8% 6% 0; border-radius: 40px; background: radial-gradient(circle at 50% 40%, #d9e6ff, #eef4ff 70%); z-index: 0; }
.pt-photo img { position: relative; z-index: 1; display: block; width: 100%; max-height: 520px; object-fit: cover; object-position: center top;
  -webkit-mask-image: linear-gradient(#000 82%, transparent); mask-image: linear-gradient(#000 82%, transparent); }

.pt-sample { position: relative; z-index: 2; margin: -70px 0 0; background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px);
  border: 1px solid var(--line); border-radius: 28px; padding: 20px; box-shadow: var(--shadow); }
.pt-sample-h { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.pt-sample-h b { font-size: 17px; }
.pt-tag { background: var(--sky); color: var(--blue2); font-size: 12px; padding: 4px 12px; border-radius: 999px; }
.pt-rows { display: grid; gap: 10px; }
.pt-row { display: flex; align-items: center; gap: 14px; padding: 12px 14px; border-radius: 18px; background: #f7faff; }
.pt-row small { display: block; color: var(--muted); font-size: 13px; } .pt-row b { font-size: 16px; font-weight: 600; }
.pt-ico { flex: none; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; color: #fff; background: var(--blue); }
.pt-row.take .pt-ico { background: #2aa3b8; } .pt-row.warn .pt-ico { background: #f0a53b; }

.pt-sec { padding: 56px 0 0; }
.pt-sec h2 { font-size: clamp(24px, 5.6vw, 36px); line-height: 1.25; margin: 0 0 22px; }
.pt-cards { display: grid; gap: 14px; }
.pt-card { background: #fff; border: 1px solid var(--line); border-radius: 24px; padding: 22px; box-shadow: var(--shadow); }
.pt-card h3 { margin: 12px 0 6px; font-size: 19px; } .pt-card p { margin: 0; color: var(--muted); font-size: 15px; }
.pt-cico { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; background: var(--sky); }
.pt-cico svg { width: 26px; height: 26px; fill: none; stroke: var(--blue); stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.pt-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.pt-steps li { display: flex; gap: 16px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 18px 20px; }
.pt-steps li > b { flex: none; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--blue); font-size: 18px; }
.pt-steps h3 { margin: 4px 0 2px; font-size: 17px; } .pt-steps p { margin: 0; color: var(--muted); font-size: 14px; }

.pt-band { margin-top: 56px; border-radius: 32px; padding: 30px 24px; color: #fff; display: grid; gap: 18px;
  background: radial-gradient(500px 300px at 90% 0%, rgba(255, 255, 255, .18), transparent 70%), linear-gradient(135deg, #2f6dff, #0a37b8); }
.pt-band h2 { margin: 0 0 6px; font-size: clamp(22px, 5.4vw, 32px); line-height: 1.3; } .pt-band p { margin: 0; opacity: .85; }

#faq details { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 0 20px; margin-bottom: 10px; }
#faq summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
#faq summary::after { content: "+"; color: var(--blue); font-size: 20px; line-height: 1; } #faq details[open] summary::after { content: "−"; }
#faq details p { margin: 0 0 16px; color: var(--muted); }

.pt-foot { max-width: 1120px; margin: 56px auto 0; padding: 24px 20px 40px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; }
.pt-foot nav { display: flex; gap: 18px; } .pt-foot nav a { color: var(--muted); text-decoration: none; font-size: 14px; }

@media (min-width: 860px) {
  .pt-nav a:not(.pt-pill) { display: inline; }
  .pt-hero { grid-template-columns: 1.05fr .95fr; align-items: center; min-height: 600px; padding-top: 10px; }
  .pt-copy .pt-lead { font-size: 19px; }
  .pt-photo { margin: 0; } .pt-photo::before { display: none; }
  .pt-photo img { max-height: 600px; border-radius: 36px; -webkit-mask-image: linear-gradient(#000 78%, transparent); mask-image: linear-gradient(#000 78%, transparent); }
  .pt-sample { margin: -110px 0 0; width: 72%; } .pt-rows { grid-template-columns: repeat(3, 1fr); }
  .pt-cards { grid-template-columns: repeat(3, 1fr); }
  .pt-steps { grid-template-columns: repeat(3, 1fr); }
  .pt-band { grid-template-columns: 1fr auto; align-items: center; padding: 40px 48px; }
}