/* 宜睡 Yishui — warm sage theme shared by all pages. */
:root {
  --ink: #264a43;
  --muted: #71877b;
  --paper: #f7f9f2;
  --surface: #fffefa;
  --soft: #e1efe4;
  --accent: #f9e8da;
  --mint: #428f7d;
  --line: #d8e4d6;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Segoe UI", Roboto, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 960px; margin: 0 auto; padding: 0 22px; }

/* Header */
header.site {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  display: flex; align-items: center; gap: 18px;
  padding-top: 14px; padding-bottom: 14px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 21px; font-weight: 700; letter-spacing: 2px;
  color: var(--ink); text-decoration: none;
}
.brand svg { flex: none; }
nav.main { margin-left: auto; display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
nav.main a {
  color: var(--ink); text-decoration: none;
  padding: 8px 12px; border-radius: 12px; font-size: 15px;
}
nav.main a:hover { background: var(--soft); }
nav.main a.lang {
  margin-left: 6px; border: 1px solid var(--line);
  font-weight: 600;
}

/* Hero */
.hero { padding: 64px 0 44px; text-align: left; }
.hero .eyebrow {
  font-size: 13px; letter-spacing: 3px; color: var(--muted);
  font-weight: 600; margin-bottom: 14px;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 46px); line-height: 1.25;
  letter-spacing: 1px; font-weight: 700;
}
.hero p.sub {
  margin-top: 16px; font-size: 18px; color: var(--muted); max-width: 620px;
}
.hero .cta { margin-top: 26px; display: flex; gap: 12px; flex-wrap: wrap; }
.badge-soon {
  display: inline-block; padding: 12px 20px; border-radius: 16px;
  background: var(--soft); color: var(--ink); font-weight: 600; font-size: 15px;
  border: 1px solid var(--line);
}
.badge-soon small { display: block; font-weight: 400; color: var(--muted); }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 26px 0; }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 22px; padding: 22px;
}
.card.soft { background: var(--soft); border: none; }
.card.accent { background: var(--accent); border: none; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { font-size: 15px; color: var(--ink); }
.card .icon { font-size: 26px; display: block; margin-bottom: 10px; }
@media (max-width: 720px) { .cards { grid-template-columns: 1fr; } }

/* Sections */
section { padding: 34px 0; }
section > h2 { font-size: 28px; margin-bottom: 8px; letter-spacing: 1px; }
section > p.lead { color: var(--muted); margin-bottom: 22px; max-width: 640px; }

/* Policy / FAQ typography */
.doc { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 30px; margin: 24px 0; }
.doc h2 { font-size: 24px; margin: 0 0 14px; }
.doc h3 { font-size: 17px; margin: 22px 0 8px; color: var(--ink); }
.doc p, .doc li { font-size: 15px; color: var(--ink); }
.doc ul { padding-left: 20px; margin: 8px 0; }
.doc .updated { color: var(--muted); font-size: 14px; margin-bottom: 4px; }

details.faq {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 18px; padding: 16px 20px; margin-bottom: 12px;
}
details.faq summary { font-weight: 600; cursor: pointer; font-size: 16px; }
details.faq p { margin-top: 10px; font-size: 15px; color: var(--ink); }

/* Footer */
footer.site {
  border-top: 1px solid var(--line); margin-top: 40px;
  background: var(--surface);
}
footer.site .wrap { padding-top: 24px; padding-bottom: 30px; }
footer.site .links { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 10px; }
footer.site a { color: var(--ink); }
footer.site .note { color: var(--muted); font-size: 13px; max-width: 720px; }
footer.site .copyright { color: var(--muted); font-size: 13px; margin-top: 10px; }

a.mail { color: var(--mint); font-weight: 600; }