:root {
  --ink: #4a4038;
  --muted: #756b60;
  --line: #ded3c1;
  --paper: #fbf7ef;
  --paper-deep: #f1e7d7;
  --green: #63705a;
  --accent: #a87548;
  --serif: "Songti SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; }

html { color-scheme: light; background: #e8e1d4; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,.76), transparent 34rem),
    linear-gradient(145deg, #ece7dc, #d9d0c1);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.9;
}

a { color: var(--green); text-underline-offset: 4px; }
a:hover { color: var(--accent); }

.page {
  width: min(100% - 32px, 760px);
  margin: 0 auto;
  padding: 48px 0 72px;
}

.paper {
  padding: clamp(28px, 6vw, 58px);
  border: 1px solid rgba(129,108,79,.18);
  border-radius: 3px;
  background:
    linear-gradient(rgba(255,255,255,.22), rgba(255,255,255,.22)),
    var(--paper);
  box-shadow: 0 18px 48px rgba(73,59,39,.13);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--green);
  font: 12px/1.5 var(--sans);
  letter-spacing: .18em;
}

h1, h2 { color: #4f5a48; font-weight: 500; }
h1 { margin: 0 0 28px; font-size: clamp(28px, 6vw, 42px); line-height: 1.45; letter-spacing: .08em; }
h2 { margin: 2.1em 0 .65em; font-size: 20px; }
p, li { margin: 0 0 1em; }
ul { padding-left: 1.25em; }

.lead { font-size: 18px; }
.muted { color: var(--muted); font-size: 14px; }
.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 2em 0 2.4em;
}
.promise-grid section {
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.28);
}
.promise-grid span {
  display: block;
  margin-bottom: .55em;
  color: var(--green);
  font: 600 13px/1.5 var(--sans);
  letter-spacing: .06em;
}
.promise-grid p { margin: 0; font-size: 14px; line-height: 1.75; }
.plain-section { margin-top: 2.4em; }
.plain-section h2 { margin-top: 0; }
.plain-section li { margin-bottom: .45em; }
.never-collect {
  padding: 20px 22px 8px;
  border-left: 3px solid var(--green);
  background: rgba(99,112,90,.07);
}
.callout {
  margin: 1.8em 0;
  padding: 18px 20px;
  border-left: 3px solid var(--line);
  background: var(--paper-deep);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 2em;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 9px 18px;
  border: 1px solid var(--green);
  border-radius: 999px;
  color: var(--green);
  background: transparent;
  font: 15px/1.5 var(--sans);
  text-decoration: none;
  cursor: pointer;
}

.button.primary { color: #fff; background: var(--green); }
.button:focus-visible { outline: 3px solid rgba(99,112,90,.25); outline-offset: 3px; }
.button:disabled { cursor: not-allowed; opacity: .48; }

.status {
  min-height: 1.8em;
  margin-top: 1em;
  color: var(--muted);
  font: 14px/1.8 var(--sans);
}

.callout label {
  display: block;
  margin: 1em 0 .45em;
  color: var(--green);
  font: 600 13px/1.5 var(--sans);
}

.code-input {
  width: min(100%, 430px);
  min-height: 44px;
  margin: 0 10px 10px 0;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255,255,255,.72);
  font: 14px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.code-input:focus { outline: 3px solid rgba(99,112,90,.2); border-color: var(--green); }

.legal-list dt {
  margin-top: 1.5em;
  color: #4f5a48;
  font-weight: 600;
}
.legal-list dd { margin: .35em 0 0; }

footer {
  margin-top: 28px;
  color: var(--muted);
  text-align: center;
  font: 13px/1.8 var(--sans);
}

@media (max-width: 560px) {
  .page { padding-top: 18px; }
  .paper { padding: 26px 22px 34px; }
  .promise-grid { grid-template-columns: 1fr; }
}