/* 虾应官网 · 品牌色与桌面端、后台一致 */
:root {
  --brand: #0348a7;
  --brand-hover: #02398a;
  --brand-soft: #e7eef8;
  --text: #1c2430;
  --muted: #5b6573;
  --line: #d7dee8;
  --bg: #f4f6fa;
  --card: #ffffff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-hover); text-decoration: underline; }
.wrap { width: min(1040px, calc(100% - 40px)); margin: 0 auto; }
header.top {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
header.top .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 20px;
  text-decoration: none;
}
.brand:hover { color: var(--text); text-decoration: none; }
.brand img { width: 36px; height: 36px; object-fit: contain; }
nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
nav a { color: var(--muted); font-size: 14px; }
nav a[aria-current="page"] { color: var(--brand); font-weight: 600; }
.hero, .panel { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 32px 36px; margin: 28px 0; }
.hero h1 { margin: 0 0 8px; font-size: 36px; letter-spacing: 0.02em; }
.hero .tag { color: var(--brand); font-weight: 600; margin: 0 0 12px; }
.hero p { margin: 0 0 12px; color: var(--muted); max-width: 40em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 10px;
  background: var(--brand);
  color: #fff !important;
  text-decoration: none !important;
  font-weight: 600;
}
.btn:hover { background: var(--brand-hover); }
.btn.ghost { background: var(--brand-soft); color: var(--brand) !important; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 8px 0 28px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; }
.card h2, .panel h2 { margin: 0 0 10px; font-size: 18px; }
.card p, .panel p, .panel li { color: var(--muted); }
.panel h1 { margin-top: 0; }
.panel ul { padding-left: 1.2em; }
.note {
  background: var(--brand-soft);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
}
footer.foot {
  border-top: 1px solid var(--line);
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 13px;
}
footer.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
@media (max-width: 640px) {
  .hero, .panel { padding: 22px 18px; }
  .hero h1 { font-size: 28px; }
}