body {
  font-family: 'Segoe UI', system-ui, 'Microsoft JhengHei', Arial, sans-serif;
  margin: 0;
  background-color: var(--wx-bg);
  color: var(--wx-text);
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
}

.auth-page {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 60px 20px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--wx-surface);
  border: 1px solid var(--wx-border);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.5);
}

.auth-title {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0 0 22px;
  color: #fff;
}

.auth-error {
  background: rgba(233, 69, 96, 0.12);
  border: 1px solid rgba(233, 69, 96, 0.4);
  color: #fca5a5;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.9rem;
  margin-bottom: 18px;
}

.auth-form { display: flex; flex-direction: column; }
.auth-form label {
  font-size: 0.82rem;
  color: #94a3b8;
  margin: 12px 0 6px;
  letter-spacing: 0.5px;
}
.auth-form input {
  padding: 12px 14px;
  font-size: 0.95rem;
  border: 1px solid var(--wx-border);
  border-radius: 10px;
  background: var(--wx-bg);
  color: var(--wx-text);
}
.auth-form input:focus { outline: none; border-color: var(--wx-accent2); }

.auth-btn {
  margin-top: 22px;
  padding: 12px;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--wx-accent), #c73652);
  color: #fff;
  cursor: pointer;
  transition: filter 0.15s, transform 0.15s;
}
.auth-btn:hover { filter: brightness(1.08); transform: translateY(-1px); }

.auth-switch {
  text-align: center;
  margin-top: 18px;
  font-size: 0.88rem;
  color: #94a3b8;
}
.auth-switch a { color: var(--wx-gold); text-decoration: none; font-weight: 700; }
.auth-switch a:hover { text-decoration: underline; }

/* 分隔線 + Google 按鈕 */
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0 14px; color: var(--wx-muted); font-size: 0.82rem; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--wx-border); }
.google-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 11px; border-radius: 10px; background: #fff; color: #1f2937;
  font-size: 0.95rem; font-weight: 700; text-decoration: none;
  border: 1px solid #d1d5db; transition: filter 0.15s, transform 0.15s;
}
.google-btn:hover { filter: brightness(0.97); transform: translateY(-1px); }

/* 帳號設定頁 */
.auth-notice {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #86efac;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.account-info {
  background: var(--wx-bg);
  border: 1px solid var(--wx-border);
  border-radius: 12px;
  padding: 6px 16px;
  margin-bottom: 8px;
}
.account-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #1b2138;
}
.account-row:last-child { border-bottom: none; }
.account-label { font-size: 0.82rem; color: #94a3b8; letter-spacing: 0.5px; }
.account-value { font-size: 0.95rem; color: var(--wx-text); font-weight: 600; text-align: right; }
.account-badge {
  display: inline-block;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #93c5fd;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  margin-left: 6px;
}
.account-subtitle {
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  margin: 26px 0 4px;
}
.account-hint { font-size: 0.85rem; color: #94a3b8; margin: 6px 0 0; line-height: 1.5; }