:root {
  color-scheme: light;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  color: #163f54;
  background: #eef7f4;
}
* { box-sizing: border-box; }
body { margin: 0; background: linear-gradient(180deg, #ccebf0 0, #f8f4e8 280px); }
main { width: min(760px, calc(100% - 28px)); margin: 0 auto; padding: 28px 0 64px; }
header { display: flex; align-items: center; gap: 14px; padding: 18px 0 24px; }
header img { width: 64px; height: 64px; padding: 9px; border-radius: 16px; background: #fff9e8; box-shadow: 0 10px 28px rgba(22, 79, 96, .16); }
header div { min-width: 0; }
h1 { margin: 2px 0 0; font-size: clamp(1.55rem, 5vw, 2.25rem); letter-spacing: 0; }
header p { margin: 5px 0 0; color: #557985; }
article { padding: 24px; border: 1px solid rgba(255,255,255,.9); border-radius: 16px; background: rgba(255,253,247,.92); box-shadow: 0 18px 46px rgba(22, 79, 96, .12); }
section + section { margin-top: 28px; padding-top: 24px; border-top: 1px solid #dce9e5; }
h2 { margin: 0 0 10px; color: #176f82; font-size: 1.12rem; letter-spacing: 0; }
p, li { font-size: .96rem; line-height: 1.8; }
ul { margin: 8px 0 0; padding-left: 1.25rem; }
.summary { margin: 0 0 22px; padding: 14px 16px; border-left: 4px solid #e2b343; border-radius: 8px; background: #fff3c9; color: #5d4b1f; font-weight: 700; }
.meta { color: #6c8389; font-size: .82rem; }
.back { display: inline-flex; min-height: 44px; align-items: center; margin-top: 18px; padding: 0 16px; border-radius: 8px; background: #176f82; color: white; font-weight: 800; text-decoration: none; }
@media (max-width: 520px) {
  article { padding: 20px 16px; }
  header img { width: 54px; height: 54px; }
}