:root { color-scheme: light; --ink: #18332d; --text: #354c46; --muted: #64766e; --line: #d8e0d8; --paper: #fbfcf8; --accent: #1b5b43; --soft: #edf2e9; }
* { box-sizing: border-box; }
html { scroll-padding-top: 2rem; }
body { margin: 0; background: var(--paper); color: var(--text); font: 16px/1.85 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-underline-offset: 0.24em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid #8fb19a; outline-offset: 5px; border-radius: 2px; }
.wrap { width: min(1040px, calc(100% - 96px)); margin-inline: auto; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; min-height: 100px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 13px; color: var(--ink); text-decoration: none; font-size: 17px; font-weight: 550; letter-spacing: -.02em; }
.brand-mark { border-right: 1px solid var(--line); padding-right: 13px; font-weight: 750; letter-spacing: -.045em; font-size: 24px; }
nav { display: flex; gap: 28px; flex-wrap: wrap; }
.site-header nav a { text-decoration: none; font-size: 14px; color: var(--muted); padding-block: 6px; }
.site-header nav a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--accent); }
.intro { padding: 78px 0 68px; max-width: 840px; }
.eyebrow { color: var(--accent); font-size: 13px; font-weight: 650; letter-spacing: .09em; margin: 0 0 17px; }
h1, h2, h3 { color: var(--ink); line-height: 1.4; }
h1 { margin: 0 0 22px; font-size: clamp(36px, 5vw, 56px); letter-spacing: -.05em; font-weight: 650; }
.lead { margin: 0 0 24px; color: var(--ink); font-size: clamp(21px, 2.6vw, 27px); line-height: 1.7; letter-spacing: -.025em; }
.intro-copy { max-width: 690px; margin: 0 0 32px; }
.primary-link { display: inline-flex; align-items: center; gap: 30px; padding: 11px 20px; background: var(--accent); color: white; border-radius: 5px; text-decoration: none; font-size: 15px; font-weight: 550; }
.primary-link:hover { background: #154831; }
.section { padding: 44px 0 48px; border-top: 1px solid var(--line); }
.section-heading .eyebrow { margin-bottom: 10px; }
h2 { font-size: 24px; margin: 0 0 28px; letter-spacing: -.025em; font-weight: 600; }
h3 { font-size: 17px; margin: 12px 0 8px; font-weight: 600; }
.workflow { display: grid; grid-template-columns: repeat(3, 1fr); list-style: none; padding: 0; margin: 32px 0 0; gap: 36px; }
.workflow li { padding-top: 17px; border-top: 2px solid #bacabc; }
.step { font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--muted); }
.workflow p { margin: 0; font-size: 15px; }
.permission { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 55px; }
.section-copy { max-width: 740px; }
.section-copy p { margin: 0 0 17px; }
.section-copy p:last-child { margin-bottom: 0; }
code { overflow-wrap: anywhere; font-size: .88em; background: var(--soft); padding: .12em .35em; border-radius: 3px; }
.text-links { display: flex; flex-wrap: wrap; gap: 9px 28px; font-size: 14px; }
.site-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 25px; border-top: 1px solid var(--line); padding-block: 27px 38px; font-size: 12px; color: var(--muted); }
.site-footer a { color: var(--muted); }
.skip { position: absolute; left: 16px; top: -90px; background: white; padding: 8px 15px; z-index: 2; }
.skip:focus { top: 12px; }
.policy { max-width: 850px; }
.policy-heading { padding: 65px 0 28px; }
.policy-heading h1 { font-size: 42px; margin-bottom: 12px; }
.muted { color: var(--muted); font-size: 14px; }
.policy-lead { font-size: 18px; margin: 24px 0 0; }
.contents { padding: 18px 0; gap: 10px 26px; border-block: 1px solid var(--line); font-size: 14px; }
.policy-section { padding: 36px 0 2px; }
.policy-section + .policy-section { margin-top: 16px; border-top: 1px solid var(--line); }
.policy-section h2 { margin-bottom: 22px; font-size: 23px; }
.policy-section p { margin: 0 0 19px; }
.data-list { margin: 25px 0; }
.data-list > div { padding: 20px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 25px; }
.data-list > div:last-child { border-bottom: 1px solid var(--line); }
dt { color: var(--ink); font-weight: 600; }
dd { margin: 0; font-size: 15px; }
.control-list { padding-left: 24px; }
.control-list li { padding-left: 7px; margin-bottom: 17px; }
strong { color: var(--ink); font-weight: 600; }
.back-link { margin: 35px 0 55px; }
@media (max-width: 700px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { min-height: 84px; gap: 16px; flex-wrap: wrap; padding-block: 18px; }
  .brand { font-size: 15px; gap: 10px; }
  .brand-mark { font-size: 21px; padding-right: 10px; }
  nav { gap: 17px; }
  .site-header nav a { font-size: 13px; }
  .intro { padding: 48px 0; }
  .desktop-break { display: none; }
  .lead { font-size: 22px; }
  h2 { font-size: 22px; }
  .section { padding: 33px 0 36px; }
  .workflow { grid-template-columns: 1fr; gap: 25px; margin-top: 25px; }
  .workflow li { padding-top: 15px; }
  .permission { grid-template-columns: 1fr; gap: 0; }
  .policy-heading { padding-top: 44px; }
  .policy-heading h1 { font-size: 34px; }
  .policy-lead { font-size: 17px; }
  .data-list > div { grid-template-columns: 1fr; gap: 8px; padding-block: 18px; }
  .policy-section h2 { font-size: 21px; }
  .site-footer { flex-direction: column; gap: 7px; padding-bottom: 28px; }
}