:root {
  color-scheme: light;
  --ink: #172b46;
  --muted: #5c6879;
  --gold: #82662f;
  --line: #dfe3e9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: #f5f6f8;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(ellipse at 84% 16%, #eee8da 0, transparent 46%),
    linear-gradient(145deg, #fafbfc 0%, #f3f5f8 62%, #eef1f5 100%);
}

.page-shell {
  width: min(100% - 96px, 1120px);
  min-height: 100vh;
  min-height: 100svh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.site-header {
  min-height: 112px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 14px; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  border: 1px solid #e1d8c5;
  border-radius: 16px;
  background: #fcfaf5;
  color: var(--gold);
  font-size: 30px;
  box-shadow: 0 3px 10px #172b4605;
}

.brand-name { font-size: 18px; font-weight: 650; letter-spacing: .05em; }
.brand-name span { display: block; margin-top: 5px; color: var(--muted); font-size: 9px; font-weight: 500; letter-spacing: .15em; }
.header-note { margin: 0; color: var(--muted); font-size: 13px; letter-spacing: .04em; }

main { width: min(100%, 920px); flex: 1; padding: 76px 0 80px; }
.hero { margin-bottom: 44px; }
.eyebrow { margin: 0 0 20px; color: var(--gold); font-size: 11px; font-weight: 650; letter-spacing: .23em; }
h1 { margin: 0; font-size: clamp(48px, 6vw, 76px); font-weight: 650; letter-spacing: -.045em; line-height: 1.18; }
.hero-description { margin: 23px 0 0; color: var(--muted); font-size: 18px; line-height: 1.85; }

.service-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  align-items: center;
  gap: 44px;
  padding: 36px 40px;
  border: 1px solid #fff;
  border-radius: 28px;
  background: #fffffff0;
  box-shadow: 0 2px 4px #172b4603, 0 18px 48px #172b4606;
}

.service-intro { min-width: 0; }
.section-label { margin: 0 0 15px; color: var(--gold); font-size: 12px; font-weight: 600; letter-spacing: .1em; }
h2 { margin: 0; font-size: 27px; font-weight: 600; letter-spacing: -.02em; line-height: 1.6; }
.service-note { margin: 14px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.service-list { list-style: none; margin: 0; padding: 0 0 0 32px; border-left: 1px solid var(--line); }
.service-list li { display: flex; align-items: center; gap: 12px; padding: 13px 0; font-size: 15px; line-height: 1.6; }
.list-mark { width: 6px; height: 6px; flex: 0 0 auto; border-radius: 50%; background: #b69b64; }

.site-footer { padding: 24px 0 28px; border-top: 1px solid var(--line); text-align: center; color: var(--muted); font-size: 12px; line-height: 1.9; overflow-wrap: anywhere; }
.site-footer p { margin: 0 0 4px; }
.site-footer a { display: inline-block; padding: 5px 7px; color: #46576e; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.site-footer a:hover { color: var(--gold); }
.site-footer a:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }

@media (max-width: 640px) {
  .page-shell { width: calc(100% - 40px); }
  .site-header { min-height: 96px; gap: 12px; }
  .brand { gap: 10px; }
  .brand-mark { width: 40px; height: 40px; border-radius: 13px; font-size: 25px; }
  .brand-name { font-size: 15px; }
  .brand-name span { font-size: 8px; letter-spacing: .09em; }
  .header-note { max-width: 62px; font-size: 11px; line-height: 1.7; text-align: right; }
  main { padding: 52px 0 48px; }
  .hero { margin-bottom: 30px; }
  .eyebrow { margin-bottom: 16px; font-size: 10px; }
  .hero-description { margin-top: 18px; font-size: 15px; }
  .service-panel { grid-template-columns: 1fr; gap: 24px; padding: 27px 24px; border-radius: 24px; }
  h2 { font-size: 24px; }
  .service-list { padding: 16px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .service-list li { padding: 10px 0; font-size: 14px; }
  .site-footer { padding: 20px 2px 24px; font-size: 11px; }
}