:root {
  --ink: #2a2118;
  --muted: #6b5a48;
  --paper: #f6efe4;
  --card: #fffaf2;
  --line: #e4d5c0;
  --peach: #c45c4a;
  --peach-deep: #9c3d32;
  --leaf: #3d6b4f;
  --gold: #c4a15a;
  --shadow: 0 10px 30px rgba(60, 40, 20, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #f8d9c8 0%, transparent 55%),
    radial-gradient(900px 400px at 100% 0%, #e7f0e4 0%, transparent 50%),
    var(--paper);
  line-height: 1.7;
}

.hero {
  padding: 64px 24px 40px;
  border-bottom: 1px solid var(--line);
}
.hero-inner { max-width: 980px; margin: 0 auto; }
.kicker {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--peach-deep);
  font-size: 13px;
  margin: 0 0 12px;
}
h1 {
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.2;
  margin: 0 0 16px;
  font-weight: 700;
}
.lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 46em;
  margin: 0 0 28px;
}
.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.toc a {
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--card);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 14px;
}
.toc a:hover { border-color: var(--peach); color: var(--peach-deep); }

main { max-width: 980px; margin: 0 auto; padding: 24px; }
section { margin: 48px 0; }
h2 {
  font-size: 28px;
  margin: 0 0 8px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}
.section-note { color: var(--muted); margin: 8px 0 24px; }
h3 { margin: 0 0 8px; font-size: 18px; }

.rank-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.rank-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
}
.rank-list p, .rank-list h3 { margin: 0; }
.rank-list p { color: var(--muted); }
.badge {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-family: "PingFang SC", "Noto Sans SC", sans-serif;
}
.s1 { background: #9c3d32; }
.s2 { background: #c45c4a; }
.s3 { background: #d07a3a; }
.s4 { background: #c4a15a; }
.s5 { background: #6b8f71; }
.s6 { background: #3d6b4f; }
.s7 { background: #5a6b7a; }
.s8 { background: #8a8178; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}
.cards article, .rule {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.cards ul, .cols-3 ul { margin: 0; padding-left: 1.1em; color: var(--muted); }

.grid-2, .cols-3 {
  display: grid;
  gap: 14px;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.cols-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.cols-3 > div {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
}

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f3e6d4; }
tbody tr:last-child td { border-bottom: 0; }

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
}
.steps li {
  position: relative;
  padding: 12px 12px 12px 52px;
  border-bottom: 1px dashed var(--line);
}
.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 8px;
  top: 10px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--peach);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-family: "PingFang SC", "Noto Sans SC", sans-serif;
}

footer {
  max-width: 980px;
  margin: 0 auto 48px;
  padding: 0 24px;
  color: var(--muted);
  font-size: 13px;
}
code {
  background: #efe4d4;
  padding: 1px 6px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}