:root {
  --bg: #FFF8F0;
  --surface: #FFFFFF;
  --surface-alt: #FFF2E5;
  --primary: #F27289;
  --primary-dark: #D14E6A;
  --accent: #FFD9A8;
  --text: #4A3B33;
  --muted: #8A7A70;
  --border: #F0E4D8;
  --radius: 20px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-dark); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

.top { position: sticky; top: 0; z-index: 10; background: rgba(255, 248, 240, .92); border-bottom: 1px solid var(--border); backdrop-filter: blur(8px); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 18px; }
.brand img { width: 32px; height: 32px; border-radius: 9px; }
.top nav { display: flex; gap: 18px; font-size: 15px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--primary-dark); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 24px; border-radius: 999px; font-weight: 600; text-decoration: none; border: 0; }
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.ghost { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn[aria-disabled="true"] { background: var(--surface-alt); color: var(--muted); pointer-events: none; }

.hero { padding: 56px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.hero h1 { font-size: 44px; line-height: 1.25; margin: 0 0 16px; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero p.lead { font-size: 18px; color: var(--muted); margin: 0 0 28px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }
.phone { max-width: 300px; margin: 0 auto; border-radius: 36px; border: 8px solid #fff; box-shadow: 0 20px 50px rgba(209, 78, 106, .18); overflow: hidden; background: #fff; }

section { padding: 48px 0; }
.section-head { text-align: center; margin-bottom: 32px; }
.section-head h2 { font-size: 30px; margin: 0 0 8px; }
.section-head p { color: var(--muted); margin: 0; }

.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card .emoji { font-size: 32px; line-height: 1; margin-bottom: 12px; }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); }

.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; }
.shots figure { margin: 0; }
.shots figcaption { text-align: center; color: var(--muted); font-size: 14px; margin-top: 10px; }
.shots .phone { border-width: 6px; border-radius: 28px; max-width: 240px; }

.privacy-band { background: var(--surface-alt); }
.privacy-band ul { max-width: 720px; margin: 0 auto; padding-left: 1.2em; }
.privacy-band li { margin-bottom: 8px; }

.faq { max-width: 760px; margin: 0 auto; }
.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 14px 18px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 10px 0 0; color: var(--muted); }

.dl { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 820px; margin: 0 auto; }
.dl-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 14px; }
.dl-card h3 { margin: 0; font-size: 22px; }
.meta { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin: 0; font-size: 14px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; }
.meta dd.hash { font-family: ui-monospace, Menlo, monospace; font-size: 12px; word-break: break-all; }
.note { margin: 0; color: var(--muted); font-size: 14px; }

.doc { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
.doc h1 { font-size: 32px; margin: 0 0 8px; }
.doc .updated { color: var(--muted); margin: 0 0 32px; }
.doc h2 { font-size: 21px; margin: 32px 0 8px; }
.doc li { margin-bottom: 6px; }
.doc .summary { background: var(--surface-alt); border-radius: 14px; padding: 14px 18px; }

footer { border-top: 1px solid var(--border); padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 16px; }
footer a { color: var(--muted); }

@media (max-width: 640px) {
  .top nav { gap: 12px; font-size: 14px; }
  .top nav .hide-sm { display: none; }
  .hero { padding: 32px 0 24px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 28px; }
  .hero h1 { font-size: 32px; }
  .hero p.lead { font-size: 16px; }
  section { padding: 36px 0; }
  .section-head h2 { font-size: 24px; }
  .trio, .dl { grid-template-columns: 1fr; }
  .shots { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .doc h1 { font-size: 26px; }
}