:root {
  color-scheme: light;
  --ink: #18304f;
  --muted: #65758c;
  --line: #dbe9f6;
  --blue: #1689ef;
  --blue-dark: #1268c4;
  --orange: #ff8d21;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(77, 183, 255, .15), transparent 28%),
    linear-gradient(#f7fbff, #eef7ff);
}
a { color: var(--blue-dark); }
.legal-header {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px max(24px, calc((100% - 1080px) / 2));
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--line);
}
.legal-logo { display: block; width: 230px; }
.legal-logo img { display: block; width: 100%; height: auto; }
.back-link {
  padding: 10px 18px;
  color: var(--blue-dark);
  text-decoration: none;
  border: 1px solid #bcd9f2;
  border-radius: 999px;
  background: #fff;
  font-weight: 800;
}
.legal-main {
  width: min(960px, calc(100% - 32px));
  margin: 34px auto 56px;
  padding: clamp(26px, 5vw, 58px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: 0 20px 60px rgba(30, 91, 148, .1);
}
.legal-main h1 { margin: 0; font-size: clamp(30px, 5vw, 46px); }
.lead { margin: 14px 0 32px; color: var(--muted); line-height: 1.8; }
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-bottom: 32px;
  padding: 16px 18px;
  color: #4b607b;
  background: #f4f9ff;
  border-radius: 16px;
  font-size: 14px;
}
.legal-main section + section { margin-top: 30px; }
.legal-main h2 { margin: 0 0 12px; font-size: 21px; }
.legal-main h3 { margin: 20px 0 8px; font-size: 17px; }
.legal-main p, .legal-main li { color: #52657e; line-height: 1.85; }
.legal-main ul, .legal-main ol { padding-left: 22px; }
.notice {
  margin: 28px 0;
  padding: 18px 20px;
  background: #fff8e9;
  border-left: 5px solid var(--orange);
  border-radius: 12px;
  color: #6d5628;
  line-height: 1.8;
}
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feature-card { padding: 18px; background: #f6faff; border: 1px solid var(--line); border-radius: 16px; }
.feature-card strong { display: block; margin-bottom: 7px; }
.feature-card p { margin: 0; font-size: 14px; }
.legal-footer { padding: 0 20px 36px; color: #8190a4; text-align: center; font-size: 13px; }
@media (max-width: 640px) {
  .legal-header { padding: 8px 16px; }
  .legal-logo { width: 170px; }
  .back-link { padding: 8px 12px; font-size: 13px; }
  .legal-main { margin-top: 18px; border-radius: 20px; }
  .feature-grid { grid-template-columns: 1fr; }
}