:root {
  --teal: #3a8c8c; --teal-deep: #21605f; --mist: #d6eae6;
  --cream: #f6f1e7; --cream-deep: #fbf8f2; --ink: #1c2024; --slate: #4a5560; --line: #e4ddd0;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--ink); background: linear-gradient(180deg, #e7f1ee 0%, var(--cream) 40%, var(--cream-deep) 100%);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Segoe UI", sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 40px 22px 80px; }
header.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 28px; }
header.brand a { color: inherit; text-decoration: none; display: flex; align-items: center; gap: 10px; }
.logo { width: 34px; height: 34px; border-radius: 50%; background: var(--teal); display: grid; place-items: center; color: #fff; font-size: 18px; }
.wordmark { font-family: "Instrument Serif", "Songti SC", Georgia, serif; font-size: 24px; }
nav.lang { margin-left: auto; font-size: 14px; }
nav.lang a { color: var(--teal-deep); text-decoration: none; margin-left: 12px; }
h1 { font-family: "Songti SC", "Instrument Serif", Georgia, serif; font-size: 32px; line-height: 1.3; margin: 0 0 6px; }
h2 { font-size: 19px; margin: 34px 0 8px; }
p, li { color: var(--slate); }
a { color: var(--teal-deep); }
.meta { font-size: 14px; color: var(--slate); margin-bottom: 26px; }
section.lang-block + section.lang-block { margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--line); }
.card { background: rgba(255,255,255,.7); border: 1px solid var(--line); border-radius: 22px; padding: 18px 22px; margin: 18px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); color: var(--slate); }
th { color: var(--ink); font-weight: 600; }
footer { margin-top: 56px; font-size: 13px; color: var(--slate); }
footer a { margin-right: 14px; }
.hero { text-align: center; padding: 48px 0 24px; }
.hero h1 { font-size: 40px; }
.hero p { font-size: 18px; }