:root {
  --radius-button:10px;--radius-compact-button:8px;--radius-tag:6px;--radius-icon:8px;--radius-input:10px;--radius-card:14px;--radius-inset:8px;--radius-bubble:14px;--radius-media:10px;--radius-dialog:16px;--radius-sheet:20px;--radius-handle:2px;--radius-progress:4px;

  color-scheme: light;
  --ink: #20372f;
  --soft: #5f756d;
  --muted: #83938d;
  --line: #dce9e2;
  --green: #16875d;
  --mint: #eaf7f0;
  --paper: rgba(255, 255, 255, 0.92);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 8% -8%, #dff5e9 0, transparent 28rem),
    linear-gradient(180deg, #f7fbf8 0%, #f3f8f5 100%);
  color: var(--ink);
  font: 15px/1.8 system-ui, -apple-system, BlinkMacSystemFont, "HarmonyOS Sans SC", "PingFang SC", sans-serif;
}
a { color: var(--green); text-underline-offset: 3px; }
.shell { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 72px; }
.hero {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(201, 226, 213, 0.9);
  border-radius:var(--radius-card);
  background: var(--paper);
  box-shadow: 0 20px 70px rgba(42, 91, 69, 0.09);
  padding: 42px;
}
.hero::after {
  position: absolute;
  right: -56px;
  top: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: linear-gradient(145deg, #c9f0dc, #f4fbf7);
  content: "";
  opacity: 0.75;
}
.brand { position: relative; z-index: 1; display: flex; align-items: center; gap: 12px; }
.mark { display: grid; flex: 0 0 44px; width: 44px; height: 44px; place-items: center; border-radius:var(--radius-icon); background: var(--green); color: #fff; font-size: 22px; font-weight: 800; line-height: 1; text-align: center; }
.brand strong { display: block; font-size: 18px; }
.brand span { display: block; color: var(--muted); font-size: 12px; }
h1 { position: relative; z-index: 1; margin: 34px 0 9px; max-width: 620px; font-size: clamp(30px, 5vw, 48px); line-height: 1.16; letter-spacing: -0.04em; }
.lead { position: relative; z-index: 1; max-width: 660px; margin: 0; color: var(--soft); font-size: 16px; }
.meta { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 24px; color: var(--muted); font-size: 12px; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 18px 0; }
.principle { border: 1px solid var(--line); border-radius:var(--radius-card); background: var(--paper); padding: 18px; }
.principle b { display: block; margin-bottom: 5px; color: var(--green); }
.principle span { color: var(--soft); font-size: 13px; }
article { border: 1px solid var(--line); border-radius:var(--radius-card); background: var(--paper); padding: 16px 34px 34px; }
section { padding-top: 20px; scroll-margin-top: 20px; }
section + section { border-top: 1px solid var(--line); margin-top: 22px; }
h2 { margin: 0 0 10px; font-size: 20px; line-height: 1.4; }
h3 { margin: 18px 0 4px; font-size: 15px; }
p { margin: 8px 0; }
ul { margin: 8px 0; padding-left: 21px; }
li + li { margin-top: 5px; }
.notice { border-left: 3px solid #50b686; border-radius:0 var(--radius-inset) var(--radius-inset) 0; background: var(--mint); padding: 12px 15px; color: #365d4d; }
.sensitive { color: #a83b32; font-weight: 700; }
.table-wrap { overflow-x: auto; margin: 14px 0; border: 1px solid var(--line); border-radius:var(--radius-inset); }
table { width: 100%; min-width: 660px; border-collapse: collapse; font-size: 13px; }
th, td { border-bottom: 1px solid var(--line); padding: 12px 14px; text-align: left; vertical-align: top; }
th { background: #f1f8f4; color: #466159; font-size: 12px; }
tr:last-child td { border-bottom: 0; }
code { border-radius:var(--radius-tag); background: #edf4f0; padding: 2px 5px; color: #315647; font: 11px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
footer { padding: 22px 8px 0; text-align: center; color: var(--muted); font-size: 12px; }
@media (max-width: 680px) {
  .shell { width: min(100% - 22px, 920px); padding: 18px 0 42px; }
  .hero { border-radius:var(--radius-card); padding: 26px 22px; }
  .hero::after { right: -100px; top: -90px; }
  h1 { margin-top: 28px; font-size: 31px; }
  .principles { grid-template-columns: 1fr; }
  .principle { padding: 14px 16px; }
  article { border-radius:var(--radius-card); padding: 8px 19px 27px; }
  h2 { font-size: 18px; }
}