/* 第4套：cn · 橙炭三栏密集门户 */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "SimHei", "Heiti SC", "Microsoft YaHei", sans-serif;
  background: #edf2f4;
  color: #2b2d42;
  font-size: 14px;
  line-height: 1.65;
}
a { color: #d8572a; }
.portal { width: min(1280px, calc(100% - 20px)); margin: 0 auto; }
.orange-bar {
  background: #d8572a;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 12px;
  font-size: 12px;
}
.headrow {
  background: #2b2d42;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
}
.sign {
  color: #fff;
  text-decoration: none;
  font-size: 24px;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.tabs { display: flex; gap: 0; }
.tabs a {
  color: #edf2f4;
  text-decoration: none;
  padding: 8px 16px;
  background: #3d405b;
  margin-left: 4px;
}
.tabs a.cur { background: #d8572a; }
.chiprow { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 0; }
.chiprow span {
  background: #fff;
  border: 1px solid #c9d3d8;
  padding: 3px 8px;
  font-size: 12px;
}
.trio { display: grid; grid-template-columns: 1.1fr 0.9fr 0.9fr; gap: 10px; }
.brick {
  background: #fff;
  border-left: 5px solid #d8572a;
  padding: 14px;
}
.brick.dark { background: #2b2d42; color: #edf2f4; border-left-color: #ef8354; }
.brick h1 { font-size: 26px; line-height: 1.35; margin-bottom: 10px; }
.brick h2 { font-size: 17px; margin-bottom: 8px; color: #d8572a; }
.brick.dark h2 { color: #ef8354; }
.brick p { margin-bottom: 8px; }
.abtn {
  display: inline-block;
  background: #d8572a;
  color: #fff;
  text-decoration: none;
  padding: 8px 12px;
  margin: 4px 4px 0 0;
  font-size: 13px;
}
.abtn.ink { background: #2b2d42; }
.abtn.line { background: #fff; color: #d8572a; border: 1px solid #d8572a; }
.wide { background: #fff; padding: 14px; margin: 10px 0; }
.wide h2 { font-size: 18px; color: #d8572a; margin-bottom: 8px; }
.mason { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.sheet { width: 100%; border-collapse: collapse; }
.sheet th, .sheet td { border: 1px solid #c9d3d8; padding: 6px 8px; text-align: left; }
.sheet th { background: #2b2d42; color: #fff; }
.ticker { list-style: none; }
.ticker li { padding: 8px 0; border-bottom: 1px solid #e4eaee; }
.ticker time { color: #d8572a; font-size: 12px; display: block; }
.qa { border-top: 1px solid #c9d3d8; padding: 10px 0; }
.qa h3 { font-size: 14px; margin-bottom: 6px; }
.bottom {
  background: #2b2d42;
  color: #c5ccd3;
  padding: 16px 12px;
  font-size: 12px;
  margin-top: 12px;
}
.bottom a { color: #ef8354; }
@media (max-width: 980px) {
  .trio, .mason { grid-template-columns: 1fr; }
  .headrow { flex-direction: column; align-items: flex-start; gap: 8px; }
}