:root {
  --bg: #f6f3f1;
  --ink: #3f1d1d;
  --muted: #7c4a4a;
  --card: #fff;
  --line: #f0c7c7;
  --rose: #e11d48;
  --rose-deep: #9f1239;
  --sys: #44403c;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: auto; }
body {
  font-family: "Trebuchet MS", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
}

.bar {
  background: #fff;
  border-bottom: 2px solid var(--rose);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.bar .mark {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
}
.bar nav { display: flex; gap: 14px; flex-wrap: wrap; }
.bar a { color: var(--rose-deep); text-decoration: none; font-size: 14px; }
.bar a:hover { text-decoration: underline; }

.head {
  padding: 32px 24px 10px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
}
.head h1 { font-size: 28px; line-height: 1.35; margin: 6px 0 12px; }
.note { font-size: 12px; color: var(--rose); font-weight: 700; letter-spacing: 0.08em; }
.head > div > p { color: var(--muted); }

.stack {
  position: relative;
  height: 210px;
}
.note-card {
  position: absolute;
  width: 280px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 12px 14px;
  box-shadow: 0 10px 24px rgba(159,18,57,0.12);
}
.note-card:nth-child(1) { top: 36px; left: 0; transform: rotate(-6deg); z-index: 1; }
.note-card:nth-child(2) { top: 18px; left: 18px; transform: rotate(-1deg); z-index: 2; }
.note-card:nth-child(3) { top: 0; left: 36px; transform: rotate(4deg); z-index: 3; border-color: var(--rose); }
.note-card b { display: block; font-size: 13px; margin-bottom: 4px; }
.note-card span { font-size: 12px; color: var(--muted); }
.badge {
  position: absolute;
  right: 18px;
  top: -8px;
  z-index: 4;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--rose);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 800;
}

.main { padding: 10px 24px 48px; display: grid; gap: 24px; }
.mod h2 { font-size: 22px; margin-bottom: 10px; }
.mod p { margin-bottom: 10px; }

.matrix { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  font-size: 14px;
}
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
th { background: #ffe4e6; }
.ok { color: #15803d; font-weight: 700; }
.off { color: var(--rose-deep); font-weight: 700; }

.cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.cols article {
  background: #fff;
  border: 1px solid var(--line);
  padding: 14px;
}
.cols h3 { font-size: 16px; margin-bottom: 8px; color: var(--rose-deep); }

.faq-area {
  background: #fff1f2;
  padding: 28px 24px;
  border-top: 1px solid var(--line);
}
.faq-area h2 { margin-bottom: 12px; font-size: 22px; }
.faq-area article {
  background: #fff;
  border: 1px solid var(--line);
  padding: 14px 16px;
  margin-bottom: 10px;
}
.faq-area h3 { font-size: 16px; margin-bottom: 6px; }

footer {
  background: var(--sys);
  color: #e7e5e4;
  padding: 18px 24px 24px;
  font-size: 13px;
  display: grid;
  gap: 6px;
}

@media (max-width: 900px) {
  .head, .cols { grid-template-columns: 1fr; }
  .stack { height: 230px; }
  .head h1 { font-size: 24px; }
}