:root {
  --ink: #24211e;
  --muted: #6f6962;
  --paper: #f6f1e9;
  --card: #fffdf9;
  --accent: #d6774b;
  --accent-soft: #f1c7a7;
  --green: #405a4d;
  --line: rgba(36, 33, 30, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 90% 12%, rgba(241, 199, 167, .33), transparent 25rem),
    var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}
a { color: inherit; }

.site-header, main, footer { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.site-header {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 48px; height: 48px; border-radius: 15px; box-shadow: 0 8px 22px rgba(36,33,30,.08); }
.brand span { display: grid; line-height: 1.15; }
.brand strong { font-size: 17px; letter-spacing: .08em; }
.brand small { margin-top: 5px; color: var(--muted); letter-spacing: .14em; font-size: 10px; }
nav { display: flex; gap: 24px; }
nav a, footer a { text-decoration: none; color: var(--muted); font-size: 14px; }
nav a:hover, footer a:hover { color: var(--accent); }

.hero { min-height: 650px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 60px; }
.eyebrow { margin: 0 0 16px; color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: .18em; }
h1 { margin: 0; font-size: clamp(46px, 6vw, 76px); line-height: 1.12; letter-spacing: -.045em; }
h1 em { color: var(--green); font-style: normal; }
.lead { max-width: 600px; margin: 30px 0; color: var(--muted); font-size: 18px; }
.hero-actions { display: flex; align-items: center; gap: 20px; }
.hero-actions a { color: var(--green); text-underline-offset: 5px; }
.status { display: inline-flex; padding: 11px 16px; background: var(--ink); color: #fff; border-radius: 999px; font-size: 13px; }

.hero-art { position: relative; aspect-ratio: 1; min-height: 430px; }
.icon-card {
  position: absolute; inset: 17% 17%; display: grid; place-items: center;
  border-radius: 34% 46% 39% 44%; background: var(--card);
  transform: rotate(-5deg); box-shadow: 0 30px 90px rgba(64, 90, 77, .16);
}
.icon-card img { width: 72%; border-radius: 28%; }
.orbit { position: absolute; border: 1px solid rgba(64, 90, 77, .2); border-radius: 50%; }
.orbit-one { inset: 4%; }
.orbit-two { inset: 10% 4%; transform: rotate(35deg); }
.note { position: absolute; padding: 9px 14px; border-radius: 999px; background: rgba(255,253,249,.9); box-shadow: 0 10px 28px rgba(36,33,30,.08); font-size: 12px; }
.note-one { left: 0; top: 27%; }
.note-two { right: 0; bottom: 24%; }

.intro { padding: 80px 0; border-block: 1px solid var(--line); font-size: clamp(25px, 3.3vw, 43px); line-height: 1.35; letter-spacing: -.025em; }
.intro p { margin: 0; }
.intro p + p { color: var(--muted); }
.features { padding: 90px 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.features article { min-height: 290px; padding: 32px; background: rgba(255,253,249,.72); border: 1px solid rgba(36,33,30,.08); border-radius: 28px; }
.features article:nth-child(2) { background: var(--green); color: #fff; transform: translateY(26px); }
.features article span { color: var(--accent); font: 700 13px/1 monospace; }
.features h2 { margin: 70px 0 12px; font-size: 24px; }
.features p { margin: 0; color: var(--muted); }
.features article:nth-child(2) p { color: rgba(255,255,255,.72); }

.privacy-note, .support { margin: 50px 0; padding: 50px; border-radius: 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: end; }
.privacy-note { background: #ecd9c8; }
.privacy-note h2, .support h2 { margin: 0; font-size: clamp(28px, 3.4vw, 44px); line-height: 1.25; }
.privacy-note > p, .support p { margin: 0; color: var(--muted); }
.support { background: var(--card); border: 1px solid var(--line); }
.email { justify-self: end; padding: 15px 20px; border: 1px solid var(--ink); border-radius: 999px; text-decoration: none; }

footer { padding: 34px 0 46px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer p { margin: 0; }
footer div { display: flex; gap: 18px; flex-wrap: wrap; justify-content: flex-end; }

.policy-page { max-width: 820px; padding: 80px 0 120px; }
.policy-page h1 { font-size: clamp(42px, 6vw, 64px); }
.policy-page .updated { margin: 16px 0 60px; color: var(--muted); }
.policy-page section { margin-top: 42px; }
.policy-page h2 { font-size: 23px; }
.policy-page li { margin: 9px 0; }
.back { display: inline-block; margin-bottom: 28px; color: var(--muted); text-underline-offset: 4px; }

@media (max-width: 760px) {
  .site-header { min-height: 82px; }
  nav a:not(:last-child) { display: none; }
  .hero { grid-template-columns: 1fr; gap: 10px; padding: 72px 0 40px; }
  .hero-art { min-height: 360px; }
  .features { grid-template-columns: 1fr; padding: 60px 0; }
  .features article:nth-child(2) { transform: none; }
  .privacy-note, .support { padding: 32px; grid-template-columns: 1fr; gap: 28px; }
  .email { justify-self: start; max-width: 100%; overflow-wrap: anywhere; }
  footer { flex-direction: column; }
  footer div { justify-content: flex-start; }
}