:root {
  --navy: #0f1f3d;
  --ink: #1f2a44;
  --muted: #5b6b85;
  --line: #e3e8f0;
  --bg: #ffffff;
  --bg-soft: #f5f7fa;
  --green: #2e7d4f;
  --green-dark: #246640;
  --green-soft: #e8f3ec;
  --radius: 10px;
  --max: 1100px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--green-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { color: var(--navy); line-height: 1.2; margin: 0 0 0.5rem; }
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 46rem; }

/* header */
.site-header { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; letter-spacing: -0.01em; color: var(--navy); }
.logo:hover { text-decoration: none; }
.logo .cloud { color: var(--muted); font-weight: 600; }
.logo .aspen { color: var(--green); }
.nav { display: flex; gap: 22px; align-items: center; }
.nav a { color: var(--ink); font-weight: 500; font-size: 0.95rem; }
.nav a:hover { color: var(--green-dark); text-decoration: none; }
.site-header .nav-toggle { display: none; }
.btn { display: inline-block; padding: 12px 20px; border-radius: 8px; font-weight: 600; border: 1px solid transparent; cursor: pointer; font-size: 0.98rem; }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); text-decoration: none; }
.btn-ghost { border-color: var(--line); color: var(--navy); background: #fff; }
.btn-ghost:hover { border-color: var(--navy); text-decoration: none; }
.btn-sm { padding: 9px 14px; font-size: 0.9rem; }

/* sections */
section { padding: 72px 0; }
section.soft { background: var(--bg-soft); }
.section-head { max-width: 46rem; margin-bottom: 36px; }
.eyebrow { display: inline-block; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--green-dark); margin-bottom: 10px; }

/* hero */
.hero { padding: 96px 0 72px; background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%); }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 56px; }
.fact { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.fact strong { display: block; color: var(--navy); margin-bottom: 4px; }

/* cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; }
.card .icon { width: 40px; height: 40px; border-radius: 10px; background: var(--green-soft); color: var(--green-dark); display: grid; place-items: center; margin-bottom: 16px; font-weight: 700; }
.card p { color: var(--muted); margin-bottom: 0; }
.card ul { margin: 12px 0 0; padding-left: 18px; color: var(--muted); }
.card li { margin-bottom: 4px; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.step .num { font-size: 0.85rem; font-weight: 700; color: var(--green-dark); letter-spacing: 0.08em; }
.step p { color: var(--muted); margin: 0; }

/* product */
.product { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.product .tag { display: inline-block; background: var(--green-soft); color: var(--green-dark); font-weight: 600; font-size: 0.8rem; padding: 4px 10px; border-radius: 999px; margin-bottom: 12px; }
.product-card { background: var(--navy); color: #dfe6f2; border-radius: 14px; padding: 28px; }
.product-card h3 { color: #fff; }
.product-card .thread { background: #16284d; border-radius: 10px; padding: 14px 16px; margin-top: 12px; font-size: 0.92rem; }
.product-card .thread .k { color: #8fd3a8; font-weight: 700; }
.product-card .reply { margin-left: 18px; border-left: 2px solid #2b3f68; padding-left: 12px; margin-top: 8px; color: #b9c5da; }

/* about */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.about ul { padding-left: 18px; color: var(--muted); }

/* contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
form { display: grid; gap: 14px; }
label { font-weight: 600; font-size: 0.92rem; color: var(--navy); display: grid; gap: 6px; }
input, textarea, select { font: inherit; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; width: 100%; background: #fff; color: var(--ink); }
input:focus, textarea:focus { outline: 2px solid var(--green-soft); border-color: var(--green); }
textarea { min-height: 140px; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.contact-side p { color: var(--muted); }
.contact-side .big { font-size: 1.25rem; font-weight: 600; color: var(--navy); }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0; color: var(--muted); font-size: 0.92rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 28px; justify-content: space-between; align-items: center; }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

/* prose pages */
.prose { max-width: 46rem; padding: 56px 0 80px; }
.prose h1 { margin-bottom: 1rem; }
.prose h2 { font-size: 1.35rem; margin-top: 2rem; }
.prose ul, .prose ol { padding-left: 20px; }
.prose li { margin-bottom: 6px; }
.notice { background: var(--green-soft); border-radius: var(--radius); padding: 14px 18px; color: var(--green-dark); }

@media (max-width: 820px) {
  .nav { display: none; }
  .site-header .nav-toggle { display: inline-block; }
  .nav.open { display: flex; position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); flex-direction: column; padding: 16px 20px; gap: 14px; }
  .product, .about, .contact { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .hero { padding: 64px 0 48px; }
}