/* 全局样式 - iOS高级风格 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --success-color: #34C759;
    --warning-color: #FF9500;
    --danger-color: #FF3B30;
    --background-color: #f7f8fc;
    --surface-color: #ffffff;
    --text-primary: #000000;
    --text-secondary: #8E8E93;
    --text-tertiary: #C7C7CC;
    --border-color: #E5E5EA;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --blur-bg: rgba(255, 255, 255, 0.8);
    --blur-dark: rgba(0, 0, 0, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Arial, sans-serif;
    background: var(--background-color);
    color: var(--text-primary);
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    position: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 屏幕通用样式 */
.screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1;
}

.screen.active {
    opacity: 1;
    visibility: visible;
    z-index: 10;
}

.app-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background-color);
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0.0, 0.2, 1);
    z-index: 100;
    display: flex;
    flex-direction: column;
}

.app-screen.active {
    transform: translateX(0);
    z-index: 101;
}

/* 应用头部 */
.app-header {
    background: var(--blur-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 0.5px solid var(--border-color);
    padding: max(env(safe-area-inset-top), 20px) 16px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 10;
}

.header-left,
.header-right {
    flex: 0 0 60px;
    display: flex;
    align-items: center;
}

.header-right {
    justify-content: flex-end;
}

.header-title {
    flex: 1;
    text-align: center;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.back-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 17px;
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 8px;
    margin-left: -8px;
    transition: opacity 0.2s;
}

.back-btn:active {
    opacity: 0.5;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s;
}

.icon-btn:active {
    opacity: 0.5;
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--surface-color);
    border-radius: 20px;
    max-width: 400px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideUp 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
}

@keyframes modalSlideUp {
    from {
        transform: translateY(40px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 24px 20px 16px;
    border-bottom: 0.5px solid var(--border-color);
}

.modal-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.modal-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px 20px;
    border-top: 0.5px solid var(--border-color);
    display: flex;
    gap: 12px;
}

/* 按钮 */
.btn {
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:active {
    background: #0051D5;
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:active {
    background: #D1D1D6;
    transform: scale(0.98);
}

.btn-text {
    background: none;
    color: var(--primary-color);
    padding: 8px 16px;
}

.btn-text:active {
    opacity: 0.5;
}

/* 输入框 */
.input-group {
    margin-bottom: 16px;
}

.input-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.input-field {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    background: var(--surface-color);
    color: var(--text-primary);
    transition: all 0.2s;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.input-field::placeholder {
    color: var(--text-tertiary);
}

/* 列表项 */
.list-item {
    background: var(--surface-color);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: background 0.2s;
    border-bottom: 0.5px solid var(--border-color);
}

.list-item:active {
    background: var(--background-color);
}

.list-item:first-child {
    border-radius: 12px 12px 0 0;
}

.list-item:last-child {
    border-radius: 0 0 12px 12px;
    border-bottom: none;
}

.list-item-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.list-item-content {
    flex: 1;
    min-width: 0;
}

.list-item-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list-item-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list-item-arrow {
    color: var(--text-tertiary);
    font-size: 20px;
    flex-shrink: 0;
}

/* 开关按钮 */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 51px;
    height: 31px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: 0.3s;
    border-radius: 31px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 27px;
    width: 27px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--success-color);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 空状态 */
.empty-state {
    padding: 60px 20px;
    text-align: center;
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 自定义CSS容器 */
#custom-global-styles {
    /* 用户自定义全局样式将插入这里 */
}

#custom-bubble-styles {
    /* 用户自定义气泡样式将插入这里 */
}