:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #20323a;
  background: #f4f7f5;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --ink: #20323a;
  --muted: #607179;
  --green: #296255;
  --green-deep: #214f46;
  --green-pale: #eaf2ee;
  --line: #e1e9e5;
  --surface: #ffffff;
  --gold: #9a6316;
  --gold-pale: #fff7e7;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body { min-width: 320px; margin: 0; }

a { color: var(--green-deep); text-underline-offset: 0.2em; }
a:hover { color: #173f37; }
a:focus-visible { outline: 3px solid #d4a14c; outline-offset: 4px; border-radius: 3px; }

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px max(24px, calc((100vw - 1040px) / 2));
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid var(--line);
}

.brand, .footer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand-mark { width: 34px; height: 34px; display: inline-grid; place-items: center; border-radius: 11px; background: var(--green); color: #fff; font-size: 17px; font-weight: 700; }
.brand-name { font-size: 17px; font-weight: 720; letter-spacing: .04em; }
.top-nav { display: flex; align-items: center; gap: 8px; }
.nav-link { padding: 8px 14px; color: var(--muted); text-decoration: none; font-size: 14px; border-radius: 999px; }
.nav-link:hover, .nav-link.is-current { color: var(--green-deep); background: var(--green-pale); }
.nav-link.is-current { font-weight: 650; }

.site-main { width: min(100% - 40px, 880px); margin: 38px auto 76px; }
.hero { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 36px; min-height: 240px; padding: clamp(28px, 5vw, 52px); overflow: hidden; border: 1px solid #dce9e2; border-radius: 24px; background: linear-gradient(120deg, #eef5f0 0%, #f4f7f4 57%, #e7f0eb 100%); }
.hero::after { position: absolute; right: 88px; bottom: -135px; width: 310px; height: 310px; border: 1px solid rgba(41,98,85,.1); border-radius: 50%; content: ""; }
.hero-copy { position: relative; z-index: 1; max-width: 620px; }
.eyebrow, .section-kicker { margin: 0 0 12px; color: var(--green); font-size: 12px; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 9px; }
.eyebrow-dot { width: 7px; height: 7px; display: inline-block; border-radius: 50%; background: #6d9d7d; box-shadow: 0 0 0 4px rgba(109,157,125,.13); }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 12px; color: #1c3135; font-size: clamp(36px, 6vw, 52px); font-weight: 720; letter-spacing: -.045em; line-height: 1.15; }
.hero-lead { max-width: 600px; margin-bottom: 0; color: #52666b; font-size: 16px; line-height: 1.8; }
.hero-stamp { position: relative; z-index: 1; flex: 0 0 130px; width: 130px; height: 130px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; border: 1px solid rgba(41,98,85,.19); border-radius: 50%; background: rgba(255,255,255,.64); color: var(--green-deep); text-align: center; font-size: 12px; font-weight: 650; line-height: 1.45; }
.stamp-icon { color: var(--green); font-size: 30px; font-weight: 750; line-height: 1; }

.draft-notice { display: flex; align-items: flex-start; gap: 14px; margin: 22px 0; padding: 16px 18px; border: 1px solid #f0dcae; border-radius: 14px; background: var(--gold-pale); color: #684715; }
.notice-icon { flex: 0 0 22px; width: 22px; height: 22px; display: grid; place-items: center; margin-top: 1px; border-radius: 50%; background: #f1dfbb; color: #80551c; font-size: 13px; font-weight: 800; }
.draft-notice strong { display: block; margin-bottom: 2px; font-size: 14px; }
.draft-notice p { margin: 0; color: #785a2c; font-size: 13px; line-height: 1.65; }

.policy-meta { display: flex; flex-wrap: wrap; gap: 26px; margin: 0 0 20px; padding: 17px 21px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.policy-meta div, .contact-details div { min-width: 180px; }
.policy-meta dt, .contact-details dt { margin-bottom: 2px; color: var(--muted); font-size: 12px; }
.policy-meta dd, .contact-details dd { margin: 0; color: var(--ink); font-size: 14px; font-weight: 650; }

.contents { display: flex; flex-wrap: wrap; gap: 7px; margin: 22px 0 16px; padding: 4px 0; }
.contents a { padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.72); color: #536a69; font-size: 12px; text-decoration: none; white-space: nowrap; }
.contents a:hover { border-color: #bfd5c8; background: #fff; color: var(--green-deep); }

.policy-content { overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.policy-section { padding: clamp(23px, 4vw, 35px) clamp(22px, 5vw, 44px); border-bottom: 1px solid #edf1ee; scroll-margin-top: 22px; }
.policy-section:last-child { border-bottom: 0; }
.section-kicker { margin-bottom: 7px; font-size: 10px; letter-spacing: .13em; }
.policy-section h2, .support-card h2, .help-card h2 { margin-bottom: 12px; color: #20343a; font-size: clamp(19px, 3.2vw, 23px); font-weight: 700; letter-spacing: -.02em; line-height: 1.45; }
.policy-section p { margin-bottom: 12px; color: #52636a; font-size: 14px; line-height: 1.9; }
.policy-section p:last-child { margin-bottom: 0; }
.protection-list { display: grid; gap: 9px; margin-top: 18px; padding: 17px 19px; border-radius: 13px; background: #f3f7f4; }
.protection-list div { display: flex; align-items: flex-start; gap: 10px; color: #405b55; font-size: 13px; line-height: 1.6; }
.protection-check { flex: 0 0 19px; width: 19px; height: 19px; display: grid; place-items: center; border-radius: 50%; background: #dcebe1; color: var(--green); font-size: 11px; font-weight: 800; }
.contact-details { display: flex; flex-wrap: wrap; gap: 24px; margin: 18px 0 0; padding: 16px 18px; border-radius: 12px; background: #f6f8f6; }

.support-main { max-width: 760px; }
.support-hero { min-height: 245px; }
.support-stamp { background: rgba(255,255,255,.76); }
.support-card { margin: 22px 0; padding: clamp(25px, 5vw, 42px); border: 1px solid var(--line); border-radius: 20px; background: var(--surface); text-align: center; }
.support-card-icon { width: 54px; height: 54px; display: grid; place-items: center; margin: 0 auto 17px; border-radius: 17px; background: var(--green-pale); color: var(--green); font-size: 22px; }
.support-card .section-kicker { margin-bottom: 5px; }
.support-description { margin: 0 auto 16px; color: var(--muted); font-size: 14px; }
.email-link { display: inline-block; margin: 0 0 17px; padding: 10px 16px; border: 1px solid #d4e4db; border-radius: 10px; background: #f3f7f4; color: var(--green-deep); font-weight: 650; text-decoration: none; }
.email-link:hover { background: #eaf2ee; }
.support-note { max-width: 500px; margin: 0 auto; color: #75838a; font-size: 12px; line-height: 1.7; }
.help-card { display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; padding: 24px 27px; border: 1px solid #dce9e2; border-radius: 18px; background: #eef5f0; }
.help-card .section-kicker { margin-bottom: 6px; }
.help-card h2 { margin-bottom: 7px; font-size: 18px; }
.help-card p:not(.section-kicker) { max-width: 520px; margin: 0; color: #5c6f71; font-size: 13px; line-height: 1.8; }
.text-link { flex: 0 0 auto; font-size: 13px; font-weight: 650; text-decoration: none; }

.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 22px max(24px, calc((100vw - 880px) / 2)); border-top: 1px solid var(--line); background: #fff; color: var(--muted); font-size: 12px; }
.site-footer a { color: #58716b; text-decoration: none; }
.site-footer a:hover { color: var(--green-deep); }
.footer-brand { gap: 8px; font-weight: 700; }
.footer-brand .brand-mark { width: 27px; height: 27px; border-radius: 9px; font-size: 14px; }

@media (max-width: 620px) {
  .site-header { min-height: 65px; padding: 10px 17px; }
  .brand-mark { width: 31px; height: 31px; }
  .brand-name { font-size: 15px; }
  .top-nav { gap: 0; }
  .nav-link { padding: 7px 10px; font-size: 12px; }
  .site-main { width: min(100% - 24px, 880px); margin: 18px auto 46px; }
  .hero { min-height: 190px; gap: 15px; padding: 25px 22px; border-radius: 19px; }
  .hero-stamp { flex-basis: 86px; width: 86px; height: 86px; font-size: 10px; }
  .stamp-icon { font-size: 22px; }
  .hero-lead { max-width: 390px; font-size: 14px; }
  .draft-notice { gap: 10px; margin: 15px 0; padding: 13px; }
  .policy-meta { gap: 13px 20px; padding: 14px 16px; }
  .policy-meta div, .contact-details div { min-width: 140px; }
  .contents { flex-wrap: wrap; overflow: visible; padding: 2px 0 9px; row-gap: 6px; }
  .contents a { font-size: 11px; }
  .policy-content { border-radius: 16px; }
  .policy-section { padding: 23px 20px; }
  .protection-list { padding: 15px; }
  .support-card { margin: 15px 0; padding: 26px 19px; }
  .help-card { align-items: flex-start; flex-direction: column; padding: 21px; }
  .site-footer { padding: 18px 17px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}