/* 第5套：问答驱动 · 绯红窄栏先问答 */
:root {
  --blood: #7a1f1f;
  --red: #c0392b;
  --paper: #fff8f6;
  --ink: #2a1414;
  --fade: #6d4a4a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Georgia", "Source Han Serif SC", "Songti SC", serif;
  line-height: 1.85;
}

.sticky {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #1c0c0c;
  color: #f7e8e4;
  border-bottom: 3px solid var(--red);
}
.sticky .row {
  width: min(720px, calc(100% - 24px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}
.brand {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 17px;
}
nav.plain a {
  color: #f0cfc8;
  text-decoration: none;
  margin-left: 12px;
  font-size: 14px;
  font-family: "Microsoft YaHei", sans-serif;
}
nav.plain a.current { color: #ffd2c4; border-bottom: 1px solid #ffd2c4; }

.col {
  width: min(720px, calc(100% - 24px));
  margin: 0 auto;
  padding: 28px 0 40px;
}
.col h1 {
  font-size: 30px;
  line-height: 1.35;
  margin: 0 0 14px;
}
.deck { font-family: "Microsoft YaHei", sans-serif; color: var(--fade); font-size: 16px; }
.actions { margin: 18px 0 8px; font-family: "Microsoft YaHei", sans-serif; }
.actions a {
  display: inline-block;
  margin: 0 8px 8px 0;
  padding: 9px 14px;
  background: var(--red);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}
.actions a.ghost { background: transparent; color: var(--blood); border: 1px solid var(--blood); }

.ask {
  border-top: 1px solid #edd5d0;
  padding: 18px 0;
}
.ask h2 {
  font-size: 22px;
  margin: 0 0 8px;
}
.ask p, .ask li { font-family: "Microsoft YaHei", sans-serif; }
.q-mark {
  display: inline-block;
  background: var(--blood);
  color: #fff;
  font-size: 12px;
  padding: 1px 6px;
  margin-right: 6px;
  font-family: "Microsoft YaHei", sans-serif;
}

.facts {
  width: 100%;
  border-collapse: collapse;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
.facts th, .facts td { border-bottom: 1px solid #edd5d0; padding: 8px 6px; text-align: left; }

.faq-block { margin-top: 8px; }
.faq-block h3 {
  font-size: 17px;
  margin: 16px 0 6px;
}
.faq-block p { font-family: "Microsoft YaHei", sans-serif; color: var(--fade); margin: 0; }

footer {
  background: #1c0c0c;
  color: #e8d2cc;
  font-size: 13px;
  padding: 26px 0;
  font-family: "Microsoft YaHei", sans-serif;
}
footer .col { padding: 0; }
footer a { color: #ffb199; }

@media (max-width: 600px) {
  .col h1 { font-size: 24px; }
  .sticky .row { flex-direction: column; align-items: flex-start; gap: 6px; }
}