* { box-sizing: border-box; }
html { color-scheme: light; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: #f4f7f6; color: #242b2e; font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; letter-spacing: 0; }
::selection { background: #10b981; color: #fff; }
header, footer { background: #fff; }
header { border-bottom: 1px solid #d8e2dc; }
.header-inner, .footer-inner { max-width: 1024px; padding: 0 24px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.header-inner { min-height: 64px; }
.identity { display: flex; align-items: center; gap: 12px; font-size: 14px; font-weight: 600; color: #475569; }
.identity img { display: block; width: 36px; height: 36px; object-fit: contain; border-radius: 50%; }
.site-type { padding: 4px 10px; background: #eef4f1; border: 1px solid #d2e3dc; border-radius: 4px; font-size: 12px; color: #52616f; }
main { width: 100%; max-width: 816px; margin: auto; padding: 64px 24px; }
.intro { text-align: center; margin-bottom: 36px; }
.eyebrow { margin: 0 0 12px; color: #52616f; font-size: 12px; }
h1 { margin: 0 0 14px; color: #111827; font-size: 36px; line-height: 1.3; font-weight: 800; }
.summary { max-width: 576px; margin: 0 auto; font-size: 16px; line-height: 1.75; color: #4b5563; }
.links { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin-bottom: 38px; }
.links button { appearance: none; min-width: 0; min-height: 104px; padding: 16px 8px; border: 1px solid #cbd5e1; border-radius: 6px; background: #fff; color: #0f172a; font: inherit; text-align: center; cursor: pointer; box-shadow: 0 1px 2px #00000008; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 7px; }
.entry-label { font-size: 16px; font-weight: 700; line-height: 1.5; overflow-wrap: anywhere; }
.entry-note { font-size: 11px; color: #52616f; line-height: 1.5; }
.links .accent { border: 2px solid #10b981; background: #f0fdf4; color: #065f46; }
.accent .entry-note { color: #047857; }
.links button:hover { border-color: #dc2626; color: #b91c1c; }
.links button:focus-visible { outline: 3px solid #b91c1c; outline-offset: 4px; }
.links button[aria-busy="true"] { border-color: #b91c1c; background: #fef2f2; cursor: progress; }
#nav-status, .notice { margin: -18px 0 24px; color: #a32121; font-size: 14px; line-height: 1.6; }
[hidden] { display: none !important; }
.guidance { border-top: 1px solid #d8e2dc; padding-top: 24px; }
h2 { margin: 0 0 16px; font-size: 12px; color: #52616f; font-weight: 600; }
.guidance-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; font-size: 12px; line-height: 1.8; }
h3 { margin: 0 0 4px; font-size: 12px; color: #242b2e; }
.guidance p { margin: 0; color: #475569; }
footer { border-top: 1px solid #d8e2dc; padding: 24px 0; }
.footer-inner { font-size: 12px; line-height: 1.8; color: #52616f; }
@media (max-width: 767px) {
  main { padding: 40px 24px; }
  h1 { font-size: 30px; }
  .summary { font-size: 14px; }
  .intro { margin-bottom: 28px; }
  .links { grid-template-columns: minmax(0, 1fr); margin-bottom: 30px; }
  .links button { min-height: 76px; padding: 12px; gap: 3px; }
  .guidance-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .footer-inner { flex-direction: column; gap: 6px; text-align: center; }
  .site-type { padding: 4px 7px; }
}