/* 第6套：选型驱动 · 奶油底 + 陶土按钮 + 海军字 · 左右交替条带 · 选择瓷砖 */
:root {
  --bg: #fbf7f2;
  --ink: #1e3a5f;
  --clay: #c45c26;
  --clay-ink: #fff8f3;
  --navy: #1e3a5f;
  --sand: #f3e6d6;
  --line: #e2d2c0;
  --mute: #5c6b7d;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, "Palatino Linotype", "Microsoft YaHei", serif;
  font-size: 17px;
  line-height: 1.75;
}

.ribbon {
  border-top: 4px solid var(--navy);
  border-bottom: 1px solid var(--line);
  background: #fffdf9;
}
.ribbon-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  text-decoration: none;
  color: var(--navy);
  font-size: 26px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.links a {
  text-decoration: none;
  color: var(--navy);
  margin-left: 22px;
  font-size: 15px;
  border-bottom: 2px solid transparent;
}
.links a.sel { border-bottom-color: var(--clay); color: var(--clay); }

.intro {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 28px 20px;
}
.intro h1 { font-size: 30px; line-height: 1.35; margin: 0 0 14px; }
.clay-btn {
  display: inline-block;
  background: var(--clay);
  color: var(--clay-ink);
  text-decoration: none;
  padding: 12px 20px;
  font-weight: 700;
  font-family: "Microsoft YaHei", sans-serif;
}
.line-btn {
  display: inline-block;
  margin-left: 10px;
  padding: 11px 16px;
  border: 1px solid var(--navy);
  color: var(--navy);
  text-decoration: none;
  font-family: "Microsoft YaHei", sans-serif;
}

.pick-grid {
  max-width: 1200px;
  margin: 10px auto 30px;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.pick-grid a {
  background: #fffdf9;
  border: 1px solid var(--line);
  padding: 16px;
  text-decoration: none;
  color: var(--navy);
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
.pick-grid strong { display: block; color: var(--clay); margin-bottom: 6px; }

.slab {
  max-width: 1200px;
  margin: 0 auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
}
.slab.reverse { direction: rtl; }
.slab.reverse > * { direction: ltr; }
.slab .fig {
  background: var(--sand);
  padding: 36px;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 15px;
}
.slab .txt { padding: 36px 40px; }
.slab h2 { margin: 0 0 12px; font-size: 22px; }

table.pick {
  width: 100%;
  border-collapse: collapse;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
table.pick th, table.pick td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
table.pick th { background: var(--sand); }

dl.faq { font-family: "Microsoft YaHei", sans-serif; font-size: 16px; }
dl.faq dt { margin-top: 16px; font-weight: 700; }
dl.faq dd { margin: 6px 0 0; color: var(--mute); }

.ending {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px;
  color: var(--mute);
  font-size: 13px;
  font-family: "Microsoft YaHei", sans-serif;
}
.ending a { color: var(--clay); margin-right: 14px; }

@media (max-width: 900px) {
  .pick-grid { grid-template-columns: 1fr 1fr; }
  .slab, .slab.reverse { grid-template-columns: 1fr; direction: ltr; }
  .ribbon-inner { flex-direction: column; align-items: flex-start; gap: 10px; }
  .links a { margin-left: 0; margin-right: 14px; }
  .line-btn { margin-left: 0; margin-top: 8px; }
}