:root {
  color-scheme: light;
  --text: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --line-dark: #d1d5db;
  --accent: #2563eb;
  --danger: #c62828;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html, body { min-width: 320px; min-height: 100%; margin: 0; background: #fff; color: var(--text); }
body { min-height: 100vh; }
button, input { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

.page { width: 100%; min-height: 100vh; padding: 24px 16px; }
.verify-box { width: min(390px, 100%); margin: 0 auto; padding: 28px; border: 1px solid var(--line); border-radius: 12px; background: #fff; position: absolute; inset: 50% auto auto 50%; transform: translate(-50%, -50%); }
.verify-box label { display: block; margin-bottom: 12px; font-size: 16px; line-height: 1.4; }
.verify-box input { display: block; width: 100%; height: 48px; padding: 0 13px; border: 1px solid var(--line-dark); border-radius: 7px; outline: none; color: var(--text); background: #fff; font-size: 16px; transition: border-color .15s, box-shadow .15s; }
.verify-box input::placeholder { color: #9ca3af; }
.verify-box input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.verify-box button { display: block; width: 100%; height: 48px; margin-top: 8px; border: 0; border-radius: 7px; color: #fff; background: var(--accent); font-size: 16px; transition: background .15s; }
.verify-box button:hover { background: #1d4ed8; }
.verify-box button:disabled { cursor: wait; opacity: .65; }
.error { min-height: 20px; margin: 9px 0 0; color: var(--danger); font-size: 13px; line-height: 1.5; }

.account-view { width: min(680px, 100%); margin: 0 auto; padding: 8px 0 36px; }
.credential-list { display: grid; gap: 12px; }
.credential { padding: 18px 20px; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
.credential-row { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 12px; align-items: start; line-height: 1.55; }
.credential-row + .credential-row { margin-top: 8px; padding-top: 8px; border-top: 1px solid #f3f4f6; }
.credential-label { color: var(--muted); font-size: 14px; }
.credential-value { min-width: 0; overflow-wrap: anywhere; color: var(--text); font-size: 16px; font-weight: 500; }
.credential-password { color: #1d4ed8; }
.guide-image { width: min(100%, 630px); margin: 22px auto 0; }
.guide-image img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 8px; }
.notice { margin-top: 22px; padding: 22px 20px; border: 1px solid #fecaca; border-radius: 10px; color: #111827; background: #fffafa; font-size: 16px; line-height: 1.85; }
.notice h2 { margin: 0 0 16px; color: #dc2626; font-size: 20px; line-height: 1.5; }
.notice p { margin: 0 0 17px; }
.notice p:last-child { margin-bottom: 0; }
.notice strong, .notice .emphasis { font-weight: 700; }
.notice .emphasis { color: #d97706; }

@media (max-width: 600px) {
  .page { padding: 16px 12px; }
  .verify-box { padding: 22px 18px; }
  .account-view { padding-top: 0; }
  .credential { padding: 15px; }
  .credential-row { grid-template-columns: 52px minmax(0, 1fr); gap: 8px; }
  .credential-label { font-size: 13px; }
  .credential-value { font-size: 15px; }
  .notice { padding: 17px 15px; font-size: 15px; line-height: 1.75; }
  .notice h2 { font-size: 18px; }
}