* { box-sizing: border-box; }
body { margin: 0; color: #24282e; background: #f5f6f8; font: 15px/1.65 "Microsoft YaHei", sans-serif; }
header { background: #202831; color: #fff; padding: 16px max(24px, calc((100% - 820px) / 2)); display: flex; align-items: center; justify-content: space-between; gap: 30px; }
header a { color: #fff; white-space: nowrap; }
main { max-width: 820px; margin: 32px auto; background: #fff; padding: 28px; border: 1px solid #d9dce1; }
h1 { font-size: 24px; margin: 0 0 20px; }
a { color: #175a92; text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid #2879bd; outline-offset: 4px; }
.notice { border-left: 3px solid #ad7519; background: #fff7e6; padding: 12px 16px; }
table { width: 100%; border-collapse: collapse; margin: 24px 0; text-align: left; }
caption { text-align: left; margin-bottom: 10px; color: #5e6670; }
th, td { padding: 12px; border-bottom: 1px solid #e0e3e7; }
th { background: #f5f6f8; }
.button { display: inline-block; padding: 9px 16px; color: white; background: #235d88; border-radius: 3px; }
footer { text-align: center; padding: 20px; font-size: 12px; color: #69727c; }
@media (max-width: 600px) { main { margin: 16px; padding: 20px; } header { padding: 16px 20px; } th, td { padding: 10px 6px; } }