/* ==========================================
   Proxy Manager - Dark Theme Styles
   ========================================== */

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #0f3460;
    --bg-hover: #1f4287;
    --text-primary: #e6e6e6;
    --text-secondary: #c0c0c0;
    --accent: #e94560;
    --accent-secondary: #533483;
    --success: #00d4aa;
    --warning: #ffd93d;
    --danger: #ff6b6b;
    --border-color: rgba(255, 255, 255, 0.1);
    
    --sidebar-width: 220px;
    --sidebar-collapsed-width: 64px;
    --header-height: 60px;
    --mobile-nav-height: 56px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

/* 浅色模式 */
[data-theme="light"] {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-hover: #e8edf3;
    --text-primary: #1a1a2e;
    --text-secondary: #666666;
    --accent: #e94560;
    --accent-secondary: #7c3aed;
    --success: #00b894;
    --warning: #f39c12;
    --danger: #e74c3c;
    --border-color: rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* ==========================================
   Layout
   ========================================== */
.app-container {
    display: flex;
    min-height: 100vh;
}

.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-normal);
}

.sidebar-collapsed .main-wrapper {
    margin-left: var(--sidebar-collapsed-width);
}

.main-content {
    flex: 1;
    padding: 24px;
    margin-top: var(--header-height);
    overflow-x: hidden;
}

/* ==========================================
   Sidebar
   ========================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    transition: width var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 16px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.sidebar-logo svg {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.sidebar-logo span {
    font-size: 16px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-collapsed .sidebar-logo span {
    display: none;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 8px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    margin-bottom: 4px;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    gap: 12px;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent);
    color: white;
    position: relative;
}

/* PC端侧边栏选中项左侧竖条指示器 */
.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: white;
    border-radius: 0 4px 4px 0;
}

.nav-item i,
.nav-item .nav-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.nav-item span {
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-collapsed .nav-item span:last-child {
    display: none;
}

.sidebar-toggle {
    position: absolute;
    right: -14px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-hover);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all var(--transition-fast);
    font-size: 14px;
    font-weight: bold;
}

.sidebar-toggle:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.toggle-arrow {
    display: inline-block;
    transition: transform var(--transition-fast);
}

.sidebar-collapsed .toggle-arrow,
.sidebar-collapsed .toggle-arrow svg {
    transform: rotate(180deg);
}

/* ==========================================
   Header
   ========================================== */
.header {
    position: fixed;
    top: 0;
    right: 0;
    left: var(--sidebar-width);
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 900;
    transition: left var(--transition-normal);
}

.sidebar-collapsed .header {
    left: var(--sidebar-collapsed-width);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 桌面端隐藏汉堡菜单 */
.mobile-menu-btn {
    display: none;
}

.header-title {
    font-size: 20px;
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.logout-btn {
    min-height: 44px;  /* P3: 增大触控区域 */
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.logout-btn:hover {
    border-color: var(--danger);
    color: var(--danger);
}

.theme-toggle-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
    border-color: var(--warning);
    color: var(--warning);
}

/* ==========================================
   Cards
   ========================================== */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

/* P2: 版本信息分组样式 */
.card h3 { margin-bottom: 16px; }
.version-item {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 16px;
    border-left: 3px solid var(--accent);
    margin-bottom: 12px;
}
.version-item:last-child { margin-bottom: 0; }

/* Status Cards */
.status-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;  /* P2: 从 16px 增加到 20px */
    margin-bottom: 24px;
}

.status-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 16px;
    display: flex;
    flex-direction: column;
}

.status-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.status-card-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.status-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.status-card:hover .status-card-icon {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.icon-text {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-text svg {
    width: 20px;
    height: 20px;
}

.nav-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.nav-icon svg {
    width: 20px;
    height: 20px;
}

.status-card-icon.success { background: rgba(0, 212, 170, 0.2); color: var(--success); }
.status-card-icon.warning { background: rgba(255, 217, 61, 0.2); color: var(--warning); }
.status-card-icon.danger { background: rgba(255, 107, 107, 0.2); color: var(--danger); }

/* P2: 连接异常状态脉冲动画 */
.status-card-icon.danger.pulse {
    background: rgba(255, 107, 107, 0.3);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}
.status-card-icon.primary { background: rgba(233, 69, 96, 0.2); color: var(--accent); }

.status-card-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.status-card-sub {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Online/Offline Status */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

.status-dot.online { background: var(--success); box-shadow: 0 0 8px var(--success); }
.status-dot.offline { background: var(--danger); box-shadow: 0 0 8px var(--danger); }

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background: #d63e57;
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: #2a5298;
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success);
    color: #1a1a2e;
}

.btn-success:hover {
    background: #00b894;
    transform: translateY(-1px);
}

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

.btn-danger:hover {
    background: #e74c3c;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Airport Switch Buttons */
.airport-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.airport-btn {
    padding: 24px;
    border-radius: var(--border-radius-lg);
    background: var(--bg-card);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

.airport-btn:hover {
    border-color: var(--accent);
}

.airport-btn.active {
    border-color: var(--success);
    background: rgba(0, 212, 170, 0.15);  /* P2: 增强背景色 */
    box-shadow: inset 0 0 0 1px var(--success);  /* P2: 内阴影增强 */
}

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

.airport-btn-status {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Operation Buttons Grid */
.operation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;  /* P2: 从 12px 增加到 16px */
}

.operation-btn {
    padding: 20px 16px;  /* P2: 增加垂直间距 */
    border-radius: var(--border-radius);
    background: var(--bg-hover);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.operation-btn:hover {
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
}

.operation-btn:hover .lucide,
.operation-btn:hover svg {
    transform: scale(1.15);
    transition: transform var(--transition-fast);
}

.operation-btn i,
.operation-btn .lucide {
    width: 24px;
    height: 24px;
}

.operation-btn span {
    font-size: 13px;
}

/* P1: 危险操作按钮样式 */
.operation-btn.danger {
    background: rgba(255, 107, 107, 0.15);
    border: 2px solid var(--danger);
    color: var(--danger);
}
.operation-btn.danger:hover {
    background: var(--danger);
    color: white;
    transform: scale(1.02);
}

/* 操作按钮加载中状态 */
.operation-btn.is-loading {
    background: rgba(233, 69, 96, 0.25);
    border: 2px solid var(--accent);
    color: var(--accent);
    pointer-events: none;
    animation: opBtnPulse 1.5s ease-in-out infinite;
}
.operation-btn.danger.is-loading {
    background: rgba(255, 107, 107, 0.25);
    border-color: var(--danger);
    color: var(--danger);
}
.op-spinner {
    width: 24px !important;
    height: 24px !important;
    border-width: 2px !important;
    border-color: var(--border-color) !important;
    border-top-color: var(--accent) !important;
    flex-shrink: 0;
}
@keyframes opBtnPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* 操作按钮完成状态 */
.operation-btn.completed {
    background: rgba(0, 212, 170, 0.2);
    border: 2px solid var(--success);
    color: var(--success);
}
.operation-btn.completed:hover {
    background: rgba(0, 212, 170, 0.3);
}
.operation-btn.danger.completed {
    background: rgba(0, 212, 170, 0.2);
    border-color: var(--success);
    color: var(--success);
}

/* ==========================================
   Tables
   ========================================== */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;  /* P1: 平滑滚动 */
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.03);
}

/* ==========================================
   Tabs
   ========================================== */
.tabs {
    display: flex;
    gap: 8px;  /* P2: 从 4px 增加到 8px */
    background: var(--bg-secondary);
    padding: 8px;  /* P2: 从 4px 增加到 8px */
    border-radius: var(--border-radius);
    margin-bottom: 16px;
}

.tab {
    padding: 12px 24px;  /* P2: 增加内边距 */
    min-height: 44px;  /* P2: 最小触控高度 */
    border-radius: 8px;  /* P2: 更大的圆角 */
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 14px;
}

.tab:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);  /* P2: hover 背景 */
}

.tab.active {
    background: var(--accent);
    color: white;
}

/* ==========================================
   Forms
   ========================================== */
.form-group {
    margin-bottom: 20px;
}

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

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
}

.form-input::placeholder {
    color: var(--text-secondary);
}

/* ==========================================
   Login Page
   ========================================== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
}

.login-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

.login-form .btn {
    width: 100%;
    margin-top: 8px;
}

/* ==========================================
   Countdown
   ========================================== */
.countdown-card {
    text-align: center;
    padding: 32px;
}

.countdown-value {
    font-size: 64px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.countdown-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* 倒计时颜色状态 */
.countdown-normal .countdown-value {
    background: linear-gradient(135deg, var(--success), #00b894);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.countdown-warning .countdown-value {
    background: linear-gradient(135deg, var(--warning), #f0a500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.countdown-urgent .countdown-value {
    background: linear-gradient(135deg, var(--danger), #e74c3c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse 1.5s infinite;
}

/* ==========================================
   Proxy Groups
   ========================================== */
.proxy-groups {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.proxy-group {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 16px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.proxy-group:hover {
    background: var(--bg-hover);
}

.proxy-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.proxy-group-name {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.proxy-group-node {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.proxy-group-toggle {
    font-size: 10px;
    color: var(--text-secondary);
    transition: transform var(--transition-fast);
    display: inline-block;
}

.proxy-group-toggle.expanded {
    transform: rotate(90deg);
}

/* 节点列表 */
.proxy-node-list {
    margin-top: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    max-height: 300px;
    overflow-y: auto;
}

.proxy-node-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-radius: 6px;
    transition: background var(--transition-fast);
    font-size: 13px;
}

.proxy-node-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.proxy-node-item.active {
    background: rgba(0, 212, 170, 0.1);
    border-left: 3px solid var(--success);
}

.proxy-node-name {
    flex: 1;
    cursor: pointer;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.proxy-node-item.active .proxy-node-name {
    color: var(--success);
    font-weight: 600;
}

.proxy-node-delay {
    font-size: 12px;
    font-weight: 500;
    min-width: 50px;
    text-align: right;
}

.proxy-node-delay.delay-fast { color: var(--success); }
.proxy-node-delay.delay-medium { color: var(--warning); }
.proxy-node-delay.delay-slow { color: var(--danger); }

.proxy-node-test-btn {
    padding: 2px 8px;
    font-size: 11px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: auto;
}

.proxy-node-test-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.proxy-node-test-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==========================================
   Announcements
   ========================================== */
.announcement-item {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.announcement-item:last-child {
    border-bottom: none;
}

.announcement-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.announcement-airport {
    font-size: 12px;
    color: var(--accent);
    font-weight: 600;
}

.announcement-time {
    font-size: 11px;
    color: var(--text-secondary);
}

.announcement-title {
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.4;
    display: flex;
    align-items: center;
    gap: 6px;
}

.announcement-toggle {
    font-size: 10px;
    color: var(--text-secondary);
    flex-shrink: 0;
    transition: transform 0.2s;
}

.announcement-content {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 8px 0 4px 16px;
    white-space: pre-wrap;
    word-break: break-word;
    border-left: 2px solid var(--accent);
    margin-top: 6px;
    margin-left: 2px;
}

/* ==========================================
   Scheduler Tasks
   ========================================== */
.scheduler-tasks {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.scheduler-task {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 12px;
}

.scheduler-task-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.scheduler-task-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.scheduler-task-interval {
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--bg-hover);
    padding: 2px 8px;
    border-radius: 10px;
}

.scheduler-task-last {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==========================================
   Output Console
   ========================================== */
.output-console {
    background: #0d1117;
    border-radius: var(--border-radius);
    padding: 16px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.output-console .line {
    padding: 2px 0;
}

.output-console .line.info { color: var(--text-secondary); }
.output-console .line.success { color: var(--success); }
.output-console .line.warning { color: var(--warning); }
.output-console .line.error { color: var(--danger); }

/* ==========================================
   Loading & Spinner
   ========================================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

@keyframes loadingBar {
    0% { width: 0%; }
    50% { width: 100%; }
    100% { width: 0%; }
}

.btn .spinner {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

/* ==========================================
   Firmware Check Results
   ========================================== */
.check-item {
    display: flex;
    align-items: center;
    padding: 12px;
    border-radius: var(--border-radius);
    margin-bottom: 8px;
    gap: 12px;
}

.check-item.ok { background: rgba(0, 212, 170, 0.1); }
.check-item.warn { background: rgba(255, 217, 61, 0.1); }
.check-item.fail { background: rgba(255, 107, 107, 0.1); }

.check-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.check-item.ok .check-icon { background: var(--success); }
.check-item.warn .check-icon { background: var(--warning); color: #1a1a2e; }
.check-item.fail .check-icon { background: var(--danger); }

.check-text {
    flex: 1;
    font-size: 14px;
}

/* ==========================================
   Traffic Page (iframe)
   ========================================== */
.traffic-frame {
    width: 100%;
    height: calc(100vh - var(--header-height) - 48px);
    border: none;
    border-radius: var(--border-radius-lg);
    background: var(--bg-card);
}

/* ==========================================
   Rules Test
   ========================================== */
.rules-test-form {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.rules-test-form .form-input {
    flex: 1;
}

.rules-result {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 20px;
}

.rules-result-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.rules-result-item:last-child {
    border-bottom: none;
}

.rules-result-label {
    color: var(--text-secondary);
}

.rules-result-value {
    font-weight: 600;
}

/* P1: 快速测试按钮样式 */
.quick-tests {
    display: flex;
    gap: 12px;  /* P1: 从 4px 增加到 12px */
    flex-wrap: wrap;
    margin-top: 8px;
}
.quick-test-btn {
    padding: 10px 16px;
    min-height: 44px;  /* P1: 最小触控高度 */
    min-width: 44px;
    border-radius: 8px;
    font-size: 13px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.quick-test-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* P3: 空状态提示样式 */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}
.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}
.empty-state-text {
    font-size: 14px;
    line-height: 1.6;
}

/* ==========================================
   Pagination
   ========================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.pagination-btn {
    padding: 8px 12px;
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.pagination-btn.active {
    background: var(--accent);
    color: white;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==========================================
   Chart Container
   ========================================== */
.chart-container {
    height: 300px;
    padding: 16px 0;
}

/* ==========================================
   Dashboard Grid Layout
   ========================================== */
.dashboard-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}

/* ==========================================
   Responsive - Tablet
   ========================================== */
@media (max-width: 992px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }
    
    .sidebar-logo span,
    .nav-item span:last-child {
        display: none;
    }
    
    .main-wrapper {
        margin-left: var(--sidebar-collapsed-width);
    }
    
    .header {
        left: var(--sidebar-collapsed-width);
    }
    
    .sidebar-toggle {
        display: none;
    }
}

/* ==========================================
   Responsive - Mobile
   ========================================== */
@media (max-width: 768px) {
    /* 侧边栏默认隐藏，通过 JS 控制展开 */
    .sidebar {
        transform: translateX(-100%);
        display: flex;  /* 改用 transform 而非 display:none，支持动画 */
        width: 260px;
        transition: transform 0.3s ease;
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    /* 侧边栏遮罩层 */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }
    
    .sidebar-overlay.active {
        display: block;
    }
    
    .main-wrapper {
        margin-left: 0;
        padding-bottom: calc(var(--mobile-nav-height) + 10px);
    }
    
    .header {
        left: 0;
        padding: 0 16px;
    }
    
    /* 汉堡菜单按钮 */
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: transparent;
        border: none;
        color: var(--text-primary);
        cursor: pointer;
        font-size: 20px;
        margin-right: 8px;
    }
    
    .header-title {
        font-size: 16px;
    }
    
    /* 隐藏用户名，只显示图标 */
    .user-info span {
        display: none;
    }
    
    /* 登出按钮：移动端只显示图标 */
    .logout-btn span {
        display: none !important;
    }
    
    .logout-btn {
        padding: 8px;
        min-width: 40px;
    }
    
    /* 确保所有按钮文字不换行 */
    .btn, button {
        white-space: nowrap;
    }
    
    /* 确保侧边栏折叠按钮完全隐藏 */
    .sidebar-toggle {
        display: none !important;
    }
    
    .main-content {
        padding: 12px;
    }
    
    /* 表格水平滚动 */
    .table-container, .log-table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -12px;
        padding: 0 12px;
    }
    
    /* P1: 表格响应式 */
    .data-table { 
        font-size: 12px; 
        min-width: 420px;  /* 降低最小宽度适配小屏 */
    }
    .data-table th, .data-table td { padding: 8px 6px; }
    
    /* 日志页卡片头部：标签+按钮堆叠 */
    .logs-page .card-header {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 12px;
    }
    
    .logs-page .card-header .tabs {
        order: 1;
        width: 100%;
    }
    
    .logs-page .card-header .flex {
        order: 2;
        justify-content: flex-end;
    }
    
    .logs-page .card-header .flex .btn {
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    /* 按钮触摸友好 */
    .btn, button {
        min-height: 44px;  /* iOS 推荐最小触摸区域 */
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    /* 输入框防 iOS 缩放 */
    input, textarea, select, .form-input {
        font-size: 16px !important;
        min-height: 44px;
    }
    
    /* 页面标题缩小 */
    .page-title, h2, .card-title {
        font-size: 16px;
    }
    
    h3 {
        font-size: 15px;
    }
    
    /* 卡片样式调整 */
    .card {
        padding: 16px;
        margin-bottom: 16px;
        border-radius: 10px;
    }
    
    .card-header {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .dashboard-right {
        grid-template-columns: 1fr !important;
        gap: 16px;
    }
    
    /* Mobile Bottom Navigation - Material Design 3 */
    .mobile-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: var(--mobile-nav-height);
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        z-index: 1000;
        justify-content: space-around;
        align-items: stretch;
        padding: 0 4px;
        padding-bottom: env(safe-area-inset-bottom);  /* iPhone X 安全区域 */
    }
    
    .mobile-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        color: var(--text-secondary);
        text-decoration: none;
        font-size: 9px;
        padding: 4px 0;
        cursor: pointer;
        min-width: 44px;
        min-height: 48px;
        transition: color 0.2s ease;
        position: relative;
    }
    
    .mobile-nav-item .nav-icon {
        width: 24px;
        height: 24px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 2px;
        border-radius: 16px;
        transition: background-color 0.2s ease;
    }
    
    .mobile-nav-item.active .nav-icon {
        background: rgba(233, 69, 96, 0.2);
        padding: 2px 12px;
        border-radius: 16px;
    }
    
    .mobile-nav-item.active {
        color: var(--accent);
    }
    
    .mobile-nav-item i,
    .mobile-nav-item .lucide,
    .mobile-nav-item svg {
        width: 24px;
        height: 24px;
    }
    
    .status-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .status-card {
        padding: 14px;
    }
    
    .status-card-icon {
        width: 32px;
        height: 32px;
    }
    
    .status-card-icon .icon-text,
    .status-card-icon .icon-text svg {
        width: 16px;
        height: 16px;
    }
    
    /* 禁用移动端hover动画避免触摸闪烁 */
    .status-card:hover .status-card-icon {
        transform: none;
        box-shadow: none;
    }
    
    .operation-btn:hover {
        transform: none;
        box-shadow: none;
    }
    
    .status-card-value {
        font-size: 22px;
    }
    
    .status-card-label {
        font-size: 12px;
    }
    
    .status-card-sub {
        font-size: 11px;
    }
    
    .airport-buttons {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .airport-btn {
        padding: 14px 10px;
    }
    
    .airport-btn-name {
        font-size: 15px;
    }
    
    .countdown-value {
        font-size: 42px;
    }
    
    /* 操作按钮网格 */
    .operation-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .operation-btn {
        padding: 16px 10px;
        min-height: 80px;
    }
    
    .operation-btn i,
    .operation-btn .lucide {
        width: 22px;
        height: 22px;
    }
    
    .operation-btn span {
        font-size: 12px;
    }
    
    /* 规则测试表单 */
    .rules-test-form {
        flex-direction: column;
    }
    
    .rules-test-form .btn {
        width: 100%;
    }
    
    /* 快速测试按钮 */
    .quick-tests {
        gap: 8px;
    }
    
    .quick-test-btn {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    /* Tab 栏 */
    .tabs {
        flex-wrap: wrap;
        gap: 4px;
        padding: 4px;
    }
    
    .tab {
        padding: 8px 10px;
        font-size: 12px;
        flex: 1 1 auto;
        text-align: center;
        white-space: nowrap;
    }
    
    /* 输出控制台 */
    .output-console {
        font-size: 12px;
        max-height: 300px;
        padding: 12px;
    }
    
    /* 图表容器 */
    .chart-container {
        height: 250px;
    }
    
    /* 代理组 */
    .proxy-groups {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .proxy-group {
        padding: 12px;
    }
    
    /* 流量 iframe */
    .traffic-frame {
        height: calc(100vh - var(--header-height) - var(--mobile-nav-height) - 80px);
    }
    
    /* 通知设置卡片 - 邮箱输入+保存按钮堆叠 */
    .operations-page .card .flex.gap-1 {
        flex-wrap: wrap;
    }
    
    /* 分页 */
    .pagination {
        gap: 6px;
    }
    
    .pagination-btn {
        padding: 10px 14px;
    }
    
    /* 登录页 */
    .login-card {
        padding: 24px;
        margin: 16px;
    }
    
    .login-title {
        font-size: 20px;
    }
    
    /* 版本信息项 */
    .version-item {
        padding: 12px;
    }
    
    /* 检查项 */
    .check-item {
        padding: 10px;
    }
    
    .check-text strong {
        font-size: 13px;
    }
}

/* Hide mobile nav on larger screens */
@media (min-width: 769px) {
    .mobile-nav {
        display: none;
    }
}

/* ==========================================
   Element Plus Overrides (Dark Theme)
   ========================================== */
.el-message-box {
    background: var(--bg-card) !important;
    border-color: var(--border-color) !important;
}

.el-message-box__title {
    color: var(--text-primary) !important;
}

.el-message-box__content {
    color: var(--text-secondary) !important;
}

.el-button--primary {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
}

.el-loading-mask {
    background: rgba(26, 26, 46, 0.9) !important;
}

/* 浅色模式额外覆盖 */
[data-theme="light"] .output-console {
    background: #f8f9fa;
    color: #333;
}

[data-theme="light"] .output-console .line.info { color: #555; }
[data-theme="light"] .output-console .line.success { color: #00875a; }
[data-theme="light"] .output-console .line.warning { color: #b45309; }
[data-theme="light"] .output-console .line.error { color: #dc2626; }

[data-theme="light"] .status-card-icon.success { background: rgba(0, 184, 148, 0.15); }
[data-theme="light"] .status-card-icon.warning { background: rgba(243, 156, 18, 0.15); }
[data-theme="light"] .status-card-icon.danger { background: rgba(231, 76, 60, 0.15); }
[data-theme="light"] .status-card-icon.primary { background: rgba(233, 69, 96, 0.15); }

[data-theme="light"] .airport-btn {
    background: var(--bg-primary);
}

[data-theme="light"] .airport-btn.active {
    background: rgba(0, 184, 148, 0.1);
}

[data-theme="light"] .operation-btn {
    background: var(--bg-primary);
}

[data-theme="light"] .countdown-value {
    -webkit-text-fill-color: var(--accent);
}

[data-theme="light"] .el-loading-mask {
    background: rgba(240, 242, 245, 0.9) !important;
}

[data-theme="light"] .el-message-box {
    background: #ffffff !important;
}

[data-theme="light"] .el-message {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .el-message .el-message__content {
    color: #333;
}

[data-theme="light"] .card {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* ==========================================
   Section Descriptions & Tooltips
   ========================================== */
.section-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin: -8px 0 16px 0;
    line-height: 1.5;
}

.section-desc-sm {
    font-size: 12px;
    color: var(--text-secondary);
    margin: -4px 0 12px 0;
    line-height: 1.4;
    opacity: 0.8;
}

/* Tooltip 增强样式 (配合 title 属性) */
[data-tip] {
    position: relative;
    cursor: help;
}

[data-tip]::after {
    content: attr(data-tip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: normal;
    word-break: keep-all;
    overflow-wrap: break-word;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 1100;
    max-width: 320px;
    min-width: 120px;
    text-align: left;
    line-height: 1.5;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

[data-tip]:hover::after {
    opacity: 1;
}

/* 操作按钮 tooltip 在下方显示 */
.operation-btn[data-tip]::after {
    bottom: auto;
    top: calc(100% + 8px);
}

/* ==========================================
   Utility Classes
   ========================================== */
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }