/* 认证页样式 */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--bg);
  position: relative;
}
.auth-bg {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
.auth-bg::before, .auth-bg::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.25;
}
.auth-bg::before { width: 420px; height: 420px; background: var(--primary); top: -140px; right: -80px; }
.auth-bg::after { width: 360px; height: 360px; background: var(--primary); bottom: -120px; left: -100px; }
.auth-theme-toggle { position: absolute; top: 20px; right: 20px; z-index: 10; }
.auth-card {
  position: relative; z-index: 5;
  width: 100%; max-width: 400px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-modal);
  padding: 36px 36px 30px;
}
.auth-logo { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 8px; }
.auth-logo img { width: 40px; height: 40px; border-radius: 10px; object-fit: contain; }
.auth-logo span { font-size: 20px; font-weight: 700; }
.auth-subtitle { text-align: center; color: var(--text-secondary); font-size: 13px; margin-bottom: 24px; }
.auth-tabs { display: flex; margin-bottom: 22px; border-bottom: 1px solid var(--border); }
.auth-tab { flex: 1; text-align: center; padding: 10px 0; color: var(--text-secondary); cursor: pointer; font-size: 15px; border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all var(--transition); }
.auth-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.auth-divider { display: flex; align-items: center; gap: 12px; color: var(--text-light); font-size: 12px; margin: 20px 0 14px; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.auth-tip { text-align: center; font-size: 13px; color: var(--text-secondary); margin-top: 16px; }
.auth-tip a { color: var(--primary); }
.wx-btn {
  width: 100%; padding: 9px 0; display: flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--border); background: var(--card-bg); color: var(--text);
  border-radius: var(--radius-sm); cursor: pointer; font-size: 14px; transition: all var(--transition);
}
.wx-btn:hover { border-color: #07c160; color: #07c160; background: rgba(7, 193, 96, 0.06); }
@media (max-width: 480px) {
  .auth-card { padding: 26px 20px 22px; }
}