/* 第1套：顶栏全宽红英雄区，单栏公文式排版 */
:root {
  --c-red: #c8102e;
  --c-red-d: #9a0c22;
  --c-ink: #1c1c1c;
  --c-muted: #5a5a5a;
  --c-line: #d9d9d9;
  --c-bg: #f4f4f4;
  --c-paper: #ffffff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", SimHei, sans-serif;
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.75;
}
.topbar {
  background: #111;
  color: #fff;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-align: center;
  padding: 6px 12px;
}
.site-head {
  background: var(--c-paper);
  border-bottom: 4px solid var(--c-red);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 8%;
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 22px;
  color: var(--c-red);
  text-decoration: none;
}
.brand svg { width: 28px; height: 28px; }
.nav a {
  color: var(--c-ink);
  text-decoration: none;
  margin-left: 28px;
  font-size: 15px;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
.nav a.active { color: var(--c-red); border-bottom-color: var(--c-red); }
.hero-banner {
  background: linear-gradient(180deg, #8b0a1c 0%, #c8102e 55%, #e23a4f 100%);
  color: #fff;
  padding: 72px 8% 64px;
}
.hero-banner h1 {
  font-size: 34px;
  font-weight: 800;
  max-width: 820px;
  line-height: 1.35;
  margin-bottom: 18px;
}
.hero-banner p { max-width: 760px; font-size: 17px; margin-bottom: 28px; opacity: 0.95; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-main, .btn-sub, .dl-win, .dl-mac, .dl-ios, .dl-and {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
}
.btn-main, .dl-win { background: #fff; color: var(--c-red); }
.btn-sub { background: transparent; color: #fff; border: 1px solid #fff; }
.dl-mac, .dl-ios, .dl-and { background: #111; color: #fff; }
.wrap { width: 84%; max-width: 1080px; margin: 0 auto; padding: 36px 0 64px; }
.block {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  padding: 32px 36px;
  margin-bottom: 22px;
}
.block h2 {
  font-size: 22px;
  color: var(--c-red-d);
  border-left: 6px solid var(--c-red);
  padding-left: 12px;
  margin-bottom: 16px;
}
.block p { margin-bottom: 12px; color: #2a2a2a; }
.feat-table { width: 100%; border-collapse: collapse; margin: 12px 0 4px; }
.feat-table th, .feat-table td {
  border: 1px solid var(--c-line);
  padding: 10px 12px;
  text-align: left;
  font-size: 14px;
}
.feat-table th { background: #f8e9ec; }
.news-item { padding: 12px 0; border-bottom: 1px dashed var(--c-line); }
.news-item:last-child { border-bottom: 0; }
.news-item h3 { font-size: 16px; margin-bottom: 4px; }
.news-item time { font-size: 12px; color: var(--c-muted); margin-right: 8px; }
.faq-item { margin-bottom: 18px; }
.faq-item h3 { font-size: 16px; margin-bottom: 6px; }
.site-foot {
  background: #1a1a1a;
  color: #cfcfcf;
  padding: 28px 8%;
  font-size: 13px;
  line-height: 1.8;
}
.site-foot strong { color: #fff; }
.ico { width: 18px; height: 18px; fill: currentColor; }
@media (max-width: 800px) {
  .site-head { flex-direction: column; gap: 10px; padding: 12px 5%; }
  .nav a { margin: 0 10px; }
  .hero-banner { padding: 40px 5%; }
  .hero-banner h1 { font-size: 24px; }
  .wrap { width: 92%; }
  .block { padding: 20px; }
}