:root {
  --amber: #F59A3E;
  --amber-dark: #D97F26;
  --ink: #2B1D12;
  --ink-2: #6B5B4A;
  --ink-3: #9C8D7C;
  --bg: #FFF9F2;
  --card: #FFFFFF;
  --border: #F0E2D0;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Segoe UI", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--amber-dark); text-decoration: none; }

.nav { position: sticky; top: 0; background: rgba(255, 249, 242, 0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); z-index: 10; }
.nav-inner { max-width: 1040px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.nav-links { display: flex; gap: 22px; font-size: 14px; }
.nav-links a { color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }

main { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
section { padding: 72px 0; }
h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.2; letter-spacing: -0.5px; }
h2 { font-size: 28px; margin-bottom: 28px; text-align: center; }
h3 { font-size: 16px; margin-bottom: 6px; }

.hero { text-align: center; padding-top: 84px; }
.hero-beaver { border-radius: 26px; box-shadow: 0 16px 48px rgba(245, 154, 62, 0.35); margin-bottom: 28px; animation: bob 2.4s ease-in-out infinite; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.sub { max-width: 620px; margin: 18px auto 0; font-size: 17px; color: var(--ink-2); }
.cta-row { display: flex; gap: 14px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }
.hint { font-size: 12.5px; color: var(--ink-3); margin-top: 14px; }

.btn { display: inline-block; padding: 12px 26px; border-radius: 12px; font-size: 15px; font-weight: 600; border: none; cursor: pointer; transition: transform 0.15s, box-shadow 0.15s; }
.btn-primary { background: var(--amber); color: #fff; box-shadow: 0 6px 18px rgba(245, 154, 62, 0.4); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(245, 154, 62, 0.5); }
.btn-ghost { background: transparent; color: var(--ink-2); border: 1.5px solid var(--border); }
.btn-ghost:hover { border-color: var(--amber); color: var(--amber-dark); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }
.card .emoji { font-size: 26px; margin-bottom: 10px; }
.card p { font-size: 13.5px; color: var(--ink-2); }

.privacy { text-align: center; }
.privacy p { max-width: 640px; margin: 0 auto; color: var(--ink-2); }

.price-cards { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.price-card { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 30px 34px; width: 290px; text-align: center; }
.price-card.featured { border: 2px solid var(--amber); box-shadow: 0 12px 32px rgba(245, 154, 62, 0.18); }
.price { font-size: 34px; font-weight: 800; margin: 12px 0; }
.price span { font-size: 13px; font-weight: 500; color: var(--ink-3); }
.price-card ul { list-style: none; font-size: 13.5px; color: var(--ink-2); margin-bottom: 18px; }
.price-card li { padding: 4px 0; }

.subscribe { text-align: center; }
.subscribe p { color: var(--ink-2); margin-bottom: 20px; }
#subscribe-form { display: flex; flex-direction: column; align-items: center; gap: 14px; }
#subscribe-form input[type="email"] { width: min(360px, 90vw); padding: 12px 16px; border: 1.5px solid var(--border); border-radius: 12px; font-size: 15px; background: #fff; }
#subscribe-form input[type="email"]:focus { outline: none; border-color: var(--amber); }

footer { border-top: 1px solid var(--border); text-align: center; padding: 28px; font-size: 13px; color: var(--ink-3); }