/* ================================================================
 * DS PWA v4.3 前台样式
 * - iOS 添加到主屏引导
 * - 离线状态条
 * - 安装提示横幅
 * ================================================================ */

/* iOS Safari 添加到主屏引导 */
.ds-pwa-ios-guide { position: fixed; bottom: 20px; left: 20px; right: 20px; max-width: 380px; margin: 0 auto; background: rgba(255,255,255,.98); backdrop-filter: blur(20px); border: 1px solid #e5e7eb; border-radius: 16px; padding: 16px 20px; box-shadow: 0 10px 40px rgba(0,0,0,.15); z-index: 99998; animation: ds-pwa-slide-up 0.4s ease; }
.ds-pwa-ios-arrow { position: absolute; bottom: -8px; right: 30px; width: 16px; height: 16px; background: rgba(255,255,255,.98); border-right: 1px solid #e5e7eb; border-bottom: 1px solid #e5e7eb; transform: rotate(45deg); }
.ds-pwa-ios-content strong { display: block; font-size: 14px; color: #1f2937; margin-bottom: 8px; }
.ds-pwa-ios-content p { font-size: 13px; color: #6b7280; margin: 0 0 12px; line-height: 1.5; }
.ds-pwa-ios-icon { display: inline-block; background: var(--ds-color-primary, #FF7D00); color: #fff; padding: 2px 6px; border-radius: 4px; font-size: 12px; margin: 0 2px; }
.ds-pwa-ios-close { background: transparent; border: 1px solid #e5e7eb; padding: 6px 16px; font-size: 12px; color: #6b7280; border-radius: 6px; cursor: pointer; transition: all 0.2s; }
.ds-pwa-ios-close:hover { color: #ef4444; border-color: #ef4444; }

@keyframes ds-pwa-slide-up {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 离线状态条 */
.ds-pwa-offline-bar { position: fixed; top: 0; left: 0; right: 0; background: linear-gradient(90deg, #f59e0b, #fbbf24); color: #78350f; padding: 8px 16px; text-align: center; font-size: 13px; font-weight: 600; z-index: 99999; display: flex; align-items: center; justify-content: center; gap: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.1); }
.ds-pwa-offline-bar .ds-pwa-offline-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #78350f; animation: ds-pwa-pulse 1.5s infinite; }
@keyframes ds-pwa-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* 安卓 Chrome 安装横幅 */
.ds-pwa-install-banner { position: fixed; top: 0; left: 0; right: 0; background: var(--ds-color-white, #fff); border-bottom: 1px solid #e5e7eb; padding: 12px 20px; z-index: 99997; display: flex; align-items: center; gap: 12px; box-shadow: 0 2px 12px rgba(0,0,0,.08); animation: ds-pwa-slide-down 0.4s ease; }
.ds-pwa-install-icon { width: 48px; height: 48px; border-radius: 8px; flex-shrink: 0; }
.ds-pwa-install-content { flex: 1; min-width: 0; }
.ds-pwa-install-name { font-size: 14px; font-weight: 600; color: #1f2937; margin-bottom: 2px; }
.ds-pwa-install-desc { font-size: 12px; color: #6b7280; }
.ds-pwa-install-actions { display: flex; gap: 8px; flex-shrink: 0; }
.ds-pwa-install-btn { padding: 6px 16px; border-radius: 6px; border: 0; font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.ds-pwa-install-btn-primary { background: var(--ds-color-primary, #FF7D00); color: #fff; }
.ds-pwa-install-btn-primary:hover { opacity: 0.9; }
.ds-pwa-install-btn-secondary { background: transparent; color: #6b7280; }

@keyframes ds-pwa-slide-down {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 暗黑模式 */
[data-ds-theme="dark"] .ds-pwa-ios-guide { background: rgba(30,30,30,.98); border-color: #333; }
[data-ds-theme="dark"] .ds-pwa-ios-content strong { color: #e5e5e5; }
[data-ds-theme="dark"] .ds-pwa-ios-content p { color: #9ca3af; }
[data-ds-theme="dark"] .ds-pwa-ios-arrow { background: rgba(30,30,30,.98); border-color: #333; }
[data-ds-theme="dark"] .ds-pwa-install-banner { background: #1e1e1e; border-color: #333; }
[data-ds-theme="dark"] .ds-pwa-install-name { color: #e5e5e5; }
[data-ds-theme="dark"] .ds-pwa-install-desc { color: #9ca3af; }

/* 移动端 */
@media (max-width: 768px) {
    .ds-pwa-ios-guide { left: 12px; right: 12px; bottom: 12px; padding: 12px 16px; }
    .ds-pwa-install-banner { padding: 10px 12px; }
    .ds-pwa-install-icon { width: 40px; height: 40px; }
}