:root {
  --ink: #1d2b23;
  --muted: #657068;
  --line: #e4e9e5;
  --surface: #ffffff;
  --soft: #f4f8f3;
  --brand: #22734e;
  --brand-deep: #155438;
  --accent: #eff8ce;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--surface);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

a { color: inherit; text-decoration: none; }

.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.95);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; letter-spacing: .04em; }
.brand-mark { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50% 50% 46% 46%; color: #fff; background: var(--brand); font-size: 16px; line-height: 1; }
.brand small { color: var(--muted); font-size: 12px; font-weight: 500; letter-spacing: 0; }

.nav { display: flex; align-items: center; gap: 24px; color: var(--muted); font-size: 14px; }
.nav a:hover, .footer-links a:hover, .record-link:hover { color: var(--brand); }

.hero { overflow: hidden; background: linear-gradient(145deg, #f7fbf6 0%, #f7fbf6 58%, #eef7dc 100%); }
.hero-inner { position: relative; min-height: 480px; padding: 92px 0 80px; }
.hero-copy { position: relative; z-index: 1; max-width: 700px; }
.eyebrow { margin: 0 0 14px; color: var(--brand); font-size: 14px; font-weight: 700; letter-spacing: .12em; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 22px; font-size: clamp(38px, 6vw, 64px); line-height: 1.22; letter-spacing: -.04em; }
.hero-description { max-width: 590px; color: #4e5b52; font-size: 18px; }
.hero-orb { position: absolute; right: 2%; bottom: -115px; width: 345px; height: 345px; border: 40px solid rgba(121, 181, 84, .22); border-radius: 50%; }
.hero-orb::before { content: ""; position: absolute; inset: 42px; border-radius: 50%; background: rgba(255,255,255,.6); }

.section { padding: 88px 0; }
.section-soft { background: var(--soft); }
.section-heading { max-width: 650px; margin-bottom: 38px; }
.section-kicker { margin-bottom: 8px; color: var(--brand); font-size: 14px; font-weight: 700; letter-spacing: .1em; }
h2 { margin-bottom: 12px; font-size: clamp(28px, 4vw, 38px); line-height: 1.3; letter-spacing: -.025em; }
.section-heading p { margin-bottom: 0; color: var(--muted); }

.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.feature-card { min-height: 190px; padding: 28px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.feature-number { display: inline-flex; width: 30px; height: 30px; align-items: center; justify-content: center; margin-bottom: 20px; border-radius: 50%; color: var(--brand-deep); background: var(--accent); font-size: 13px; font-weight: 700; }
h3 { margin-bottom: 8px; font-size: 20px; line-height: 1.4; }
.feature-card p { margin-bottom: 0; color: var(--muted); font-size: 15px; }

.about { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.about-copy p { color: var(--muted); }
.about-panel { padding: 34px; border-radius: 18px; color: #edf8ef; background: var(--brand-deep); }
.about-panel p { margin-bottom: 0; color: #cfe7d6; }
.about-panel strong { display: block; margin-bottom: 10px; color: #fff; font-size: 21px; }

.site-footer { padding: 34px 0; border-top: 1px solid var(--line); color: var(--muted); background: #fff; font-size: 13px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-meta, .footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.record-link { color: var(--muted); }

.legal-main { padding: 72px 0 88px; }
.legal-content { max-width: 800px; }
.legal-content h1 { margin-bottom: 10px; font-size: clamp(34px, 5vw, 48px); }
.updated { margin-bottom: 42px; color: var(--muted); font-size: 14px; }
.legal-content h2 { margin-top: 36px; margin-bottom: 12px; font-size: 22px; }
.legal-content p, .legal-content li { color: #4f5b53; }
.legal-content ul { padding-left: 1.35em; }
.back-home { display: inline-flex; margin-bottom: 34px; color: var(--brand); font-size: 14px; font-weight: 600; }
.back-home:hover { text-decoration: underline; }

@media (max-width: 680px) {
  .container { width: min(100% - 32px, 1120px); }
  .header-inner { min-height: 64px; }
  .brand small, .nav a:not(:last-child) { display: none; }
  .nav { gap: 0; }
  .hero-inner { min-height: 430px; padding: 72px 0 64px; }
  .hero-description { font-size: 16px; }
  .hero-orb { right: -100px; width: 270px; height: 270px; border-width: 30px; opacity: .75; }
  .section { padding: 64px 0; }
  .feature-grid, .about { grid-template-columns: 1fr; }
  .feature-card { min-height: 0; padding: 24px; }
  .about { gap: 28px; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 8px; }
  .legal-main { padding: 52px 0 64px; }
}