/* ============================================
   基础样式重置和全局设置 - SCADA暗色风格
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', Arial, sans-serif;
}

:root {
    /* 主色调 - SCADA暗色风格 */
    --bg: #060d1f;
    --bg2: #0c1530;
    --card: #0f1e3d;
    --card-h: #162447;
    --border: #1a3a6e;
    --border-h: #2a5a9e;

    /* 功能色 */
    --blue: #00c8ff;
    --green: #00e676;
    --yellow: #ffd740;
    --red: #ff5252;
    --orange: #ff9100;
    --purple: #7c4dff;

    /* 文本色 */
    --txt: #cce8ff;
    --txt2: #6a9cc0;
    --txt3: #3a6a90;

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 9999px;

    /* 过渡动画 */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    font-size: 16px;
    height: 100%;
}

body {
    background: var(--bg);
    color: var(--txt);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 滚动条 - SCADA风格 */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border-h); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* 隐藏类 */
.hidden {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

/* ============================================
   登录界面 - 暗色现代风格
   ============================================ */
#login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 1.5rem;
    background: radial-gradient(ellipse at 50% 30%, #0c1530 0%, #060d1f 100%);
}

.login-wrapper {
    width: 100%;
    max-width: 820px;
    animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.login-inner {
    display: flex;
    min-height: 580px;
}

.login-form-side {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}
.login-form-side .login-form {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.login-form-side .login-footer {
    margin-top: auto;
}

.login-qr-side {
    width: 260px;
    flex-shrink: 0;
    display: flex;
    align-items: stretch;
    position: relative;
}

.qr-divider {
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--border), var(--border), transparent);
    margin: 40px 0;
}

.qr-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
}

.qr-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--txt);
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.qr-subtitle {
    font-size: 11px;
    color: var(--txt3);
    margin-bottom: 24px;
}

.qr-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
}

.qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.qr-code-box {
    position: relative;
    width: 120px;
    height: 120px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color .2s;
}
.qr-code-box:hover {
    border-color: var(--border-h);
    box-shadow: 0 0 12px rgba(0,200,255,.1);
}

.qr-icon {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg2);
    border: 2px solid var(--border);
    display: flex !important;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    z-index: 2;
}
.qr-item:first-child .qr-icon {
    color: var(--green);
}
.qr-item:last-child .qr-icon {
    color: var(--txt);
}

.qr-placeholder {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(5, 1fr);
    gap: 3px;
    width: 88px;
    height: 88px;
}
.qr-grid span {
    border-radius: 1px;
    background: var(--txt3);
    opacity: .15;
}
.qr-grid span:nth-child(odd) {
    opacity: .35;
}
.qr-grid span:nth-child(3n+1) {
    opacity: .5;
}
.qr-grid span:nth-child(7n+4) {
    opacity: .7;
    background: var(--blue);
}

.qr-label {
    font-size: 12px;
    color: var(--txt2);
    font-weight: 500;
}

.qr-dl-btn {
    width: 100%;
    padding: 6px 12px;
    font-size: 11px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--card);
    color: var(--txt2);
    cursor: pointer;
    transition: all .15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    font-family: inherit;
}
.qr-dl-btn:hover {
    border-color: var(--border-h);
    color: var(--txt);
    background: var(--card-h);
}
.qr-dl-btn.android:hover {
    border-color: var(--green);
    color: var(--green);
}
.qr-dl-btn.ios:hover {
    border-color: var(--txt);
    color: var(--txt);
}

/* 移动端：二维码区域放在下面 */
@media (max-width: 700px) {
    .login-wrapper { max-width: 420px; }
    .login-inner { flex-direction: column; min-height: auto; }
    .login-qr-side { width: 100%; }
    .qr-divider { width: auto; height: 1px; margin: 0 30px; background: linear-gradient(90deg, transparent, var(--border), transparent); }
    .qr-content { padding: 20px; }
    .qr-list { flex-direction: row; justify-content: center; }
}

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

.login-box {
    background: var(--bg2);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    position: relative;
}

.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--blue), var(--green), var(--blue));
    background-size: 200% 100%;
    animation: gradientMove 3s ease infinite;
}

@keyframes gradientMove {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.login-header {
    padding: 2.5rem 2rem 1rem;
    text-align: center;
}

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.logo-icon {
    font-size: 3rem;
    color: var(--blue);
    text-shadow: 0 0 20px rgba(0, 200, 255, 0.3);
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--blue);
    text-shadow: 0 0 12px rgba(0, 200, 255, 0.3);
    letter-spacing: 1px;
}

.login-subtitle {
    color: var(--txt2);
    font-size: 0.85rem;
    font-weight: 400;
}

/* 登录页语言选择器 */
.login-lang-switcher {
    display: flex;
    justify-content: flex-end;
    padding: 0 2rem 0.5rem;
}

.lang-select-login {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--txt2);
    font-size: 11px;
    padding: 3px 20px 3px 8px;
    height: 26px;
    cursor: pointer;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='%236a9cc0' viewBox='0 0 20 20'%3e%3cpath d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 4px center;
    background-repeat: no-repeat;
    background-size: 14px;
    transition: border-color var(--transition-fast);
}
.lang-select-login:hover,
.lang-select-login:focus {
    border-color: var(--border-h);
    color: var(--txt);
}

.login-form {
    padding: 0.5rem 2rem 2rem;
}

.login-form .form-group {
    margin-bottom: 1.25rem;
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    color: var(--txt3);
    font-size: 1rem;
    z-index: 1;
    transition: color var(--transition-fast);
}

.login-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    font-size: 0.95rem;
    color: var(--txt);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.login-input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.15);
    background: var(--card-h);
}

.login-input:focus + .input-icon {
    color: var(--blue);
}

.login-input:hover:not(:focus) {
    border-color: var(--border-h);
}

.login-input::placeholder {
    color: var(--txt3);
    opacity: 0.7;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1.25rem 0;
}

.checkbox-container {
    display: flex;
    align-items: center;
    position: relative;
    cursor: pointer;
    user-select: none;
    font-size: 0.85rem;
    color: var(--txt2);
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: relative;
    height: 1.125rem;
    width: 1.125rem;
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-right: 0.5rem;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--border-h);
    background-color: var(--card-h);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--blue);
    border-color: var(--blue);
}

.checkmark::after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 3px;
    width: 4px;
    height: 8px;
    border: solid var(--bg);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark::after {
    display: block;
}

.forgot-password {
    color: var(--blue);
    font-size: 0.85rem;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.forgot-password:hover {
    color: var(--txt);
    text-decoration: underline;
}

.login-submit-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #0080ff, var(--blue));
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.login-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 200, 255, 0.3);
}

.login-submit-btn:active {
    transform: translateY(0);
}

.login-submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.5s ease;
}

.login-submit-btn:hover::before {
    left: 100%;
}

.spinner {
    display: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.login-footer {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.demo-accounts {
    margin-bottom: 0.75rem;
}

.demo-title {
    font-size: 0.7rem;
    color: var(--txt3);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.account-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.account-item {
    font-size: 0.8rem;
    color: var(--txt2);
    line-height: 1.4;
}

.version-info {
    font-size: 0.7rem;
    color: var(--txt3);
    margin-top: 0.5rem;
}

/* ============================================
   主界面布局 - SCADA暗色风格
   ============================================ */
#main-container {
    display: flex;
    min-height: 100vh;
    background: var(--bg);
}

/* 侧边栏 */
.sidebar {
    width: 200px;
    background: var(--bg2);
    height: 100%;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
    border-right: 1px solid var(--border);
}

.sidebar-header {
    padding: 20px 15px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
    color: var(--blue);
    font-size: 16px;
    font-weight: 700;
    margin: 0;
    text-shadow: 0 0 8px rgba(0, 200, 255, 0.2);
}

.sidebar-subtitle {
    font-size: 11px;
    color: var(--txt3);
    margin-top: 5px;
}

/* 导航菜单 */
.nav-menu {
    list-style: none;
    padding: 8px 0;
}

.nav-item {
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    color: var(--txt2);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    gap: 10px;
}

.nav-link:hover {
    background: var(--card);
    color: var(--txt);
}

.nav-item.active .nav-link {
    background: var(--card);
    color: var(--blue);
    border-left-color: var(--blue);
}

.nav-icon {
    width: 18px;
    text-align: center;
    font-size: 15px;
    flex-shrink: 0;
}

.nav-text {
    font-size: 13px;
}

/* 用户信息区域 */
.user-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 12px;
    background: var(--card);
    border-top: 1px solid var(--border);
}

.user-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-avatar {
    font-size: 24px;
    color: var(--txt3);
    flex-shrink: 0;
    line-height: 1;
}

.user-details {
    flex: 1;
    min-width: 0;
    line-height: 1.3;
}

.user-name {
    color: var(--txt);
    font-size: 12px;
    font-weight: 500;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    color: var(--txt3);
    font-size: 10px;
    display: block;
}

.logout-icon-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: transparent;
    color: var(--txt3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.logout-icon-btn:hover {
    color: var(--red);
    border-color: var(--red);
    background: rgba(255, 82, 82, 0.1);
}

/* 主内容区 */
.main-content {
    margin-left: 200px;
    padding: 0;
    background: var(--bg);
    min-height: 100vh;
}

/* 顶部导航栏 */
.top-navbar {
    background: var(--bg2);
    padding: 0 20px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.top-navbar h1 {
    font-size: 18px;
    color: var(--txt);
    margin: 0;
    font-weight: 500;
}

.top-navbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar-stats {
    display: flex;
    gap: 16px;
}

.navbar-stat {
    text-align: center;
    line-height: 1;
}

.navbar-stat .val {
    font-size: 18px;
    font-weight: 700;
    display: block;
}

.navbar-stat .lbl {
    font-size: 10px;
    color: var(--txt2);
    margin-top: 2px;
    display: block;
}

.navbar-stat.s-total .val { color: var(--blue); }
.navbar-stat.s-online .val { color: var(--green); }
.navbar-stat.s-offline .val { color: var(--red); }
.navbar-stat.s-alarm .val { color: var(--yellow); }

.navbar-divider {
    width: 1px;
    height: 28px;
    background: var(--border);
}

.navbar-conn {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--txt2);
}

.navbar-conn .conn-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.navbar-conn .conn-dot.online {
    background: var(--green);
    box-shadow: 0 0 6px var(--green);
    animation: pulse-green 2s infinite;
}

.navbar-conn .conn-dot.offline {
    background: var(--red);
    box-shadow: 0 0 6px var(--red);
}

@keyframes pulse-green {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.navbar-time {
    text-align: right;
    line-height: 1.2;
}

.navbar-time .time-main {
    font-size: 20px;
    font-weight: 700;
    color: var(--blue);
    font-family: 'Consolas', 'Courier New', monospace;
    font-variant-numeric: tabular-nums;
}

.navbar-time .time-date {
    font-size: 11px;
    color: var(--txt2);
}

/* 语言选择器（主界面） */
.navbar-right .lang-switcher select,
#lang-switcher .form-control {
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--txt2);
    border-radius: var(--radius-sm);
    font-size: 11px;
    padding: 2px 8px;
    height: 28px;
    cursor: pointer;
    outline: none;
}
.navbar-right .lang-switcher select:hover,
.navbar-right .lang-switcher select:focus,
#lang-switcher .form-control:hover,
#lang-switcher .form-control:focus {
    border-color: var(--border-h);
    color: var(--txt);
}

.system-status {
    font-size: 12px;
    color: var(--green);
    font-weight: 500;
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}
.status-dot.online { background: var(--green); box-shadow: 0 0 6px var(--green); }
.status-dot.offline { background: var(--txt3); }
.status-dot.warning { background: var(--yellow); box-shadow: 0 0 6px var(--yellow); }

.time-display {
    font-size: 13px;
    color: var(--txt2);
    font-family: 'Consolas', 'Courier New', monospace;
}

.time-icon {
    margin-right: 4px;
}

/* 页面内容 */
.content-wrapper {
    padding: 20px;
}

/* 页面标题 */
.page-title {
    margin-bottom: 20px;
}

.page-title h2 {
    font-size: 18px;
    color: var(--txt);
    margin: 0 0 5px 0;
    font-weight: 600;
}

.page-description {
    font-size: 13px;
    color: var(--txt2);
    margin: 0;
}

/* ============================================
   仪表盘 - 统计卡片
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all var(--transition-fast);
}

.stat-card:hover {
    border-color: var(--border-h);
    box-shadow: 0 0 16px rgba(0, 200, 255, 0.08);
    transform: translateY(-2px);
}

.stat-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-icon.primary { background: rgba(0, 200, 255, 0.1); color: var(--blue); }
.stat-icon.success { background: rgba(0, 230, 118, 0.1); color: var(--green); }
.stat-icon.warning { background: rgba(255, 215, 64, 0.1); color: var(--yellow); }
.stat-icon.danger { background: rgba(255, 82, 82, 0.1); color: var(--red); }
.stat-icon.info { background: rgba(124, 77, 255, 0.1); color: var(--purple); }

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

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--txt);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--txt2);
    font-weight: 400;
}

.stat-trend {
    font-size: 0.7rem;
    color: var(--txt3);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 图表区域布局 */
.charts-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    height: 300px;
}

.chart-container {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.chart-container:first-child { flex: 2; position: relative; }
.chart-container:last-child { flex: 1; justify-content: flex-start; }

.ring-chart-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.chart-header h3 {
    font-size: 15px;
    color: var(--txt);
    margin: 0;
    font-weight: 500;
}

.chart-actions {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 系统状态指标 */
.system-metrics {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 8px;
}

.metric-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 36px;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
}

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

.metric-label {
    font-size: 12px;
    color: var(--txt2);
    min-width: 80px;
}

.metric-value {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 120px;
    justify-content: flex-end;
}

.metric-value span {
    font-size: 13px;
    color: var(--txt);
    font-weight: 500;
    min-width: 50px;
    text-align: right;
}

.progress-bar {
    width: 100px;
    height: 6px;
    background: var(--bg);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}

.progress-fill.cpu { background: linear-gradient(90deg, var(--green), #69f0ae); }
.progress-fill.memory { background: linear-gradient(90deg, var(--blue), #40c4ff); }

/* ECharts 图表暗色适配 */
#device-chart {
    width: 100% !important;
    height: 100% !important;
    min-height: 250px;
}

/* ============================================
   设备管理页面
   ============================================ */
.device-table-container {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: 20px;
}

.device-table-container .data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.device-table-container .data-table thead {
    background: var(--bg2);
}

.device-table-container .data-table th {
    padding: 10px 14px;
    font-weight: 600;
    color: var(--txt2);
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.device-table-container .data-table tbody tr {
    border-bottom: 1px solid rgba(26, 58, 110, 0.3);
    transition: background-color 0.2s;
}

.device-table-container .data-table tbody tr:hover {
    background: var(--card-h);
}

.device-table-container .data-table td {
    padding: 10px 14px;
    color: var(--txt);
    vertical-align: middle;
}

.table-actions {
    display: flex;
    gap: 5px;
    align-items: center;
}

.page-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .main-content { margin-left: 60px; }
    .nav-text, .user-name, .user-role, .sidebar-subtitle { display: none; }
    .sidebar-header h2 { font-size: 14px; }
    .stats-grid { grid-template-columns: 1fr; }
    .navbar-stats { display: none; }
    .navbar-time .time-main { font-size: 16px; }
    .navbar-time .time-date { display: none; }
    .user-avatar { display: none; }
}

/* ============================================
   实时数据页面
   ============================================ */
.control-panel {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding: 14px 18px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.realtime-data-container {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    margin-bottom: 20px;
}

.realtime-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.realtime-header h3 {
    font-size: 15px;
    color: var(--txt);
    margin: 0;
    font-weight: 500;
}

.realtime-chart-container {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
}

/* 质量标签 */
.quality-badge {
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-left: 8px;
}
.quality-badge.success { background: rgba(0, 230, 118, 0.15); color: var(--green); }
.quality-badge.warning { background: rgba(255, 215, 64, 0.15); color: var(--yellow); }
.quality-badge.error { background: rgba(255, 82, 82, 0.15); color: var(--red); }

/* 摘要视图 */
.summary-view, .detail-view {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    margin-bottom: 20px;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.view-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    color: var(--txt);
    margin: 0;
    font-weight: 600;
}

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

/* 内机卡片网格 */
.slaves-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
    margin-top: 15px;
}

/* 内机卡片 */
.slave-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.slave-card:hover {
    border-color: var(--border-h);
    box-shadow: 0 0 16px rgba(0, 200, 255, 0.1);
    transform: translateY(-2px);
}

.slave-card.online { border-left: 3px solid var(--green); }
.slave-card.offline { border-left: 3px solid var(--txt3); opacity: 0.7; }
.slave-card.warning { border-left: 3px solid var(--yellow); }

.slave-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.slave-info h4 {
    margin: 0;
    font-size: 15px;
    color: var(--txt);
    display: flex;
    align-items: center;
    gap: 8px;
}

.slave-id {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--blue);
    color: var(--bg);
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}

.slave-status {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
}
.slave-status.online { background: rgba(0, 230, 118, 0.15); color: var(--green); }
.slave-status.offline { background: rgba(58, 106, 144, 0.2); color: var(--txt3); }
.slave-status.warning { background: rgba(255, 215, 64, 0.15); color: var(--yellow); }

/* 摘要数据 */
.summary-data {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 12px;
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.summary-label {
    font-size: 11px;
    color: var(--txt2);
    display: flex;
    align-items: center;
    gap: 5px;
}

.summary-value {
    font-size: 18px;
    font-weight: bold;
    color: var(--txt);
}

.temp-hot { color: var(--red); }
.temp-cold { color: var(--blue); }
.temp-normal { color: var(--green); }

/* SCADA风格紧凑卡片 - 用于摘要视图，最大4列横向排列 */
.slaves-grid-scada {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
    margin-top: 10px;
}
/* 当容器足够宽时限制最多4列 */
@media (min-width: 800px) {
    .slaves-grid-scada {
        grid-template-columns: repeat(4, 1fr);
    }
}

.slave-card-scada {
    background: rgba(10,22,50,.88);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 10px 8px;
    transition: all .2s;
    position: relative;
    cursor: pointer;
    backdrop-filter: blur(4px);
    min-width: 0;
}
.slave-card-scada:hover {
    border-color: var(--border-h);
    box-shadow: 0 0 16px rgba(0,200,255,.12);
    transform: translateY(-1px);
}
.slave-card-scada.online { border-left: 3px solid var(--green); }
.slave-card-scada.offline { border-left: 3px solid var(--txt3); opacity: .7; }
.slave-card-scada.warning { border-left: 3px solid var(--yellow); }

.scada-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(26,58,110,.35);
}
.scada-card-header .scada-dev-name {
    font-size: 12px;
    color: var(--txt2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}
.scada-card-header .scada-dev-name .scada-id {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: var(--blue);
    color: var(--bg);
    border-radius: 3px;
    font-size: 10px;
    font-weight: bold;
    flex-shrink: 0;
}
.scada-status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}
.scada-status-dot.online { background: var(--green); box-shadow: 0 0 5px var(--green); }
.scada-status-dot.offline { background: var(--txt3); }
.scada-status-dot.warning { background: var(--yellow); box-shadow: 0 0 5px var(--yellow); }

/* 统一的数据项网格：所有指标以一致格式展示 */
.scada-data-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 12px;
    margin-bottom: 6px;
}
.scada-data-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 3px 0;
    border-bottom: 1px solid rgba(26,58,110,.15);
}
.scada-data-item .di-label {
    font-size: 11px;
    color: var(--txt3);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}
.scada-data-item .di-label i { font-size: 10px; width: 12px; text-align: center; }
.scada-data-item .di-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--txt);
    white-space: nowrap;
}
.scada-data-item .di-value .unit {
    font-size: 10px;
    font-weight: 400;
    color: var(--txt3);
    margin-left: 2px;
}
.scada-data-item .di-value.hot { color: var(--red); }
.scada-data-item .di-value.cold { color: var(--blue); }
.scada-data-item .di-value.normal { color: var(--green); }
.scada-data-item .di-value.on { color: var(--green); }
.scada-data-item .di-value.off { color: var(--txt3); }

/* 标签行 */
.scada-tags {
    display: flex;
    gap: 3px;
    flex-wrap: wrap;
}
.scada-tag {
    font-size: 9px;
    padding: 1px 5px;
    border-radius: 2px;
    background: rgba(0,200,255,.1);
    color: var(--blue);
}
.scada-tag.on { background: rgba(0,230,118,.15); color: var(--green); }
.scada-tag.off { background: rgba(58,106,144,.15); color: var(--txt3); }
.scada-tag.warning { background: rgba(255,215,64,.15); color: var(--yellow); }

/* 控制区域 */
.scada-controls-toggle {
    margin-top: 4px;
    padding-top: 4px;
    border-top: 1px solid rgba(26,58,110,.3);
    text-align: center;
}
.scada-controls-toggle button {
    background: none;
    border: none;
    color: var(--txt3);
    font-size: 10px;
    cursor: pointer;
    padding: 2px 8px;
    border-radius: 3px;
    transition: all .15s;
    width: 100%;
}
.scada-controls-toggle button:hover {
    color: var(--txt2);
    background: rgba(255,255,255,.05);
}

.scada-controls-body {
    margin-top: 4px;
    padding: 6px 8px;
    background: rgba(0,0,0,.2);
    border-radius: 4px;
    display: none;
}
.scada-controls-body.show { display: block; }
.scada-ctrl-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}
.scada-ctrl-row:last-child { margin-bottom: 0; }
.scada-ctrl-row label {
    font-size: 10px;
    color: var(--txt3);
    min-width: 50px;
}
.scada-ctrl-row .btn-scada {
    padding: 2px 8px;
    font-size: 10px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--card);
    color: var(--txt2);
    cursor: pointer;
    transition: all .15s;
}
.scada-ctrl-row .btn-scada:hover {
    border-color: var(--border-h);
    color: var(--txt);
}
.scada-ctrl-row .btn-scada.active {
    background: var(--blue);
    border-color: var(--blue);
    color: var(--bg);
}
.scada-ctrl-row .btn-scada:disabled {
    opacity: .4;
    cursor: not-allowed;
}
.scada-temp-input {
    width: 60px;
    padding: 2px 4px;
    font-size: 11px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--txt);
    outline: none;
}
.scada-temp-input:focus {
    border-color: var(--blue);
}

/* 加载指示器 */
.loading-indicator {
    text-align: center;
    padding: 40px;
    color: var(--txt3);
}

.loading-indicator i {
    font-size: 24px;
    margin-bottom: 10px;
    animation: spin 1s linear infinite;
}

/* ============================================
   通用组件样式
   ============================================ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--txt);
    margin-bottom: 0.25rem;
}

.page-subtitle {
    font-size: 0.85rem;
    color: var(--txt2);
    font-weight: 400;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: 0.4rem;
    white-space: nowrap;
    user-select: none;
    outline: none;
}

.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: linear-gradient(135deg, #0080ff, var(--blue));
    color: white;
    border: none;
}
.btn-primary:hover { background: linear-gradient(135deg, #0066cc, #00a0e0); }

.btn-secondary {
    background: var(--card);
    color: var(--txt2);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--card-h); border-color: var(--border-h); color: var(--txt); }

.btn-success {
    background: linear-gradient(135deg, #00b34a, var(--green));
    color: var(--bg);
    border: none;
}
.btn-success:hover { background: linear-gradient(135deg, #00913a, #00c853); }

.btn-danger {
    background: linear-gradient(135deg, #d32f2f, var(--red));
    color: white;
    border: none;
}
.btn-danger:hover { background: linear-gradient(135deg, #b71c1c, #ff1744); }

.btn-warning {
    background: linear-gradient(135deg, #f57c00, var(--yellow));
    color: var(--bg);
    border: none;
}
.btn-warning:hover { background: linear-gradient(135deg, #e65100, #ffab00); }

.btn-outline {
    background: transparent;
    color: var(--txt2);
    border: 1px solid var(--border);
}
.btn-outline:hover { background: var(--card); border-color: var(--border-h); color: var(--txt); }

.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; }

.btn-icon {
    width: 2rem;
    height: 2rem;
    padding: 0;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--txt2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.btn-icon:hover { background: var(--card-h); border-color: var(--border-h); color: var(--txt); }

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* 卡片 */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    transition: border-color var(--transition-fast);
}

.card:hover { border-color: var(--border-h); }

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--txt);
    margin: 0;
}

.card-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.card-body {
    padding: 1.25rem;
}

.filter-card { margin-bottom: 1.5rem; }

.filter-row {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-group {
    flex: 1;
    min-width: 180px;
}

.filter-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--txt3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.3rem;
}

.filter-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* 表单控件 */
.form-control {
    width: 100%;
    padding: 0.45rem 0.7rem;
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--txt);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.1);
}

.form-control:hover:not(:focus) { border-color: var(--border-h); }

.form-control-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

/* 选择框 */
.form-select {
    width: 100%;
    padding: 0.45rem 2rem 0.45rem 0.7rem;
    font-size: 0.85rem;
    color: var(--txt);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='%236a9cc0' viewBox='0 0 20 20'%3e%3cpath d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.2em 1.2em;
    appearance: none;
    -webkit-appearance: none;
    transition: all var(--transition-fast);
    outline: none;
    cursor: pointer;
}

.form-select:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.1);
}

.form-select-sm {
    padding: 0.25rem 1.5rem 0.25rem 0.5rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.date-range {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.date-range-separator {
    color: var(--txt3);
    font-size: 0.85rem;
    padding: 0 0.25rem;
}

.datetime-picker { flex: 1; min-width: 150px; }
.date-picker { flex: 1; min-width: 120px; }

.radio-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--txt2);
    user-select: none;
}

.radio-label input[type="radio"] {
    width: 1rem;
    height: 1rem;
    margin: 0;
    cursor: pointer;
}

.data-type-filter {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.375rem;
    background: var(--bg2);
    border-radius: var(--radius-md);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.control-group label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--txt3);
}

/* ============================================
   特定页面样式
   ============================================ */
/* 仪表盘页面 */
.stats-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.dashboard-content { margin-top: 1.5rem; }

.row {
    display: flex;
    flex-wrap: wrap;
    margin: -0.75rem;
    margin-bottom: 1.5rem;
}

.col-12 { flex: 0 0 100%; max-width: 100%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-12, .col-8, .col-4, .col-md-8, .col-md-4 { padding: 0.75rem; }

/* ============================================
   表格样式
   ============================================ */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.8rem;
    line-height: 1.5;
}

.data-table thead {
    background: var(--bg2);
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table th {
    padding: 0.65rem 0.9rem;
    font-weight: 600;
    color: var(--txt2);
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table th:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0.65rem;
    bottom: 0.65rem;
    width: 1px;
    background: var(--border);
}

.data-table tbody tr {
    background: transparent;
    transition: background-color var(--transition-fast);
    border-bottom: 1px solid rgba(26, 58, 110, 0.3);
}

.data-table tbody tr:hover { background: var(--card-h); }

.data-table td {
    padding: 0.65rem 0.9rem;
    color: var(--txt);
    border-bottom: 1px solid rgba(26, 58, 110, 0.3);
    vertical-align: middle;
}

.data-table td:first-child { font-weight: 500; color: var(--txt); }

.table-loading td {
    padding: 2.5rem 1rem;
    text-align: center;
    color: var(--txt3);
}

.loading-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.spinner-sm {
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--border);
    border-top-color: var(--blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* 状态标签 */
.status-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.status-badge.online { background: rgba(0, 230, 118, 0.15); color: var(--green); }
.status-badge.offline { background: rgba(58, 106, 144, 0.2); color: var(--txt3); }
.status-badge.warning { background: rgba(255, 215, 64, 0.15); color: var(--yellow); }

/* 实时数据网格 */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.realtime-item {
    background: var(--card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 1.1rem;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.realtime-item:hover {
    border-color: var(--border-h);
    box-shadow: 0 0 12px rgba(0, 200, 255, 0.08);
}

.realtime-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--blue), var(--green));
}

.data-label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--txt2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
}

.data-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--txt);
    line-height: 1.2;
    margin-bottom: 0.25rem;
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.data-unit {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--txt3);
}

.data-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.4rem;
    font-size: 0.7rem;
    color: var(--txt3);
}

.data-time {
    font-size: 0.65rem;
    color: var(--txt3);
    font-weight: 400;
}

/* 分页 */
.pagination-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.25rem 0 0;
    flex-wrap: wrap;
}

.page-input-group {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.85rem;
    color: var(--txt2);
}

.page-input {
    width: 3.5rem;
    padding: 0.3rem 0.5rem;
    font-size: 0.85rem;
    text-align: center;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--txt);
    outline: none;
    transition: all var(--transition-fast);
}

.page-input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.1);
}

.page-size-selector {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.85rem;
    color: var(--txt2);
    margin-left: 1rem;
}

.pagination-info {
    font-size: 0.85rem;
    color: var(--txt2);
    font-weight: 500;
}

/* ============================================
   模态框
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-normal);
}

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

.modal-container {
    background: var(--bg2);
    border: 1px solid var(--border-h);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: modalSlideIn var(--transition-normal) cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(-20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.modal-header h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--txt);
    margin: 0;
}

.modal-close {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-md);
    background: transparent;
    border: none;
    color: var(--txt2);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: 1.125rem;
}

.modal-close:hover {
    background: var(--card);
    color: var(--red);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    flex-shrink: 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
}

.form-group { margin-bottom: 0; }
.form-group.full-width { grid-column: 1 / -1; }

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--txt2);
    margin-bottom: 0.3rem;
}

.form-label-sm {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--txt3);
    margin-bottom: 0.25rem;
}

.param-group {
    display: flex;
    gap: 0.75rem;
}

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

.param-select { width: 100%; }

/* ============================================
   紧凑模态框样式
   ============================================ */
.modal-container.compact {
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    margin: 2vh auto;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.compact-header {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.compact-title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--txt);
}

.compact-close {
    width: 24px;
    height: 24px;
    font-size: 14px;
    padding: 0;
    background: none;
    border: none;
    color: var(--txt2);
    cursor: pointer;
    transition: color 0.2s;
}

.compact-close:hover { color: var(--red); }

.compact-body {
    padding: 20px;
    overflow-y: auto;
    flex-grow: 1;
    max-height: calc(90vh - 120px);
}

.compact-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-row {
    display: flex;
    gap: 12px;
    margin-bottom: 0;
}

.half-width {
    flex: 1;
    min-width: 0;
}

.compact-group { margin-bottom: 0; }

.compact-label {
    display: block;
    margin-bottom: 4px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--txt2);
}

.compact-input {
    width: 100%;
    padding: 8px 12px;
    font-size: 0.85rem;
    height: 36px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--txt);
    outline: none;
    transition: border-color 0.15s;
}

.compact-input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.1);
}

.compact-textarea {
    width: 100%;
    padding: 8px 12px;
    font-size: 0.85rem;
    min-height: 60px;
    resize: vertical;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--txt);
    outline: none;
}
.compact-textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.1);
}

.param-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.param-item.compact { margin: 0; }

.param-label {
    display: block;
    font-size: 0.75rem;
    color: var(--txt3);
    margin-bottom: 2px;
}

.param-select.compact {
    width: 100%;
    padding: 6px 8px;
    font-size: 0.82rem;
    height: 32px;
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--txt);
    border-radius: var(--radius-sm);
    outline: none;
    cursor: pointer;
}
.param-select.compact:focus {
    border-color: var(--blue);
}

.polling-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.checkbox-label.compact {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.85rem;
    margin: 0;
    color: var(--txt2);
}

.checkbox-text { margin-left: 4px; }

.polling-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.polling-item {
    display: flex;
    flex-direction: column;
}

.polling-label {
    font-size: 0.75rem;
    color: var(--txt3);
    margin-bottom: 2px;
}

.compact-number {
    width: 100%;
    padding: 6px 8px;
    font-size: 0.82rem;
    height: 32px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--txt);
    outline: none;
}
.compact-number:focus {
    border-color: var(--blue);
}

.compact-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

.compact-btn {
    padding: 6px 16px;
    font-size: 0.85rem;
    min-width: 80px;
}

/* 模态框滚动条 */
#modal-scrollable::-webkit-scrollbar { width: 4px; }
#modal-scrollable::-webkit-scrollbar-track { background: var(--bg2); }
#modal-scrollable::-webkit-scrollbar-thumb { background: var(--border-h); border-radius: 2px; }
#modal-scrollable::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* 寄存器配置模态框 */
#register-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

#register-modal {
    background: var(--bg2);
    border: 1px solid var(--border-h);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: modalSlideIn 0.3s ease;
}

/* ============================================
   实时数据 - 控制栏
   ============================================ */
.monitor-control-bar {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 14px 18px;
    margin-bottom: 20px;
}

.view-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.monitor-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.form-group-inline {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group-inline label {
    margin: 0;
    font-size: 13px;
    color: var(--txt2);
    white-space: nowrap;
}

.view-container { animation: fadeIn 0.3s ease; }

/* 设备概览容器 - 将布局交由内部的 slaves-grid-scada 控制 */
#device-overview-container {
    padding: 0;
}

/* 基础控制面板 */
.basic-controls {
    background: var(--bg);
    border-radius: var(--radius-sm);
    padding: 12px;
    margin-top: 8px;
    border: 1px solid var(--border);
}

.control-group {
    margin-bottom: 10px;
}
.control-group:last-child { margin-bottom: 0; }

.control-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 12px;
    color: var(--txt2);
    font-weight: 500;
}

.control-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* 高级控制面板 */
.advanced-control-card {
    height: 100%;
    border: 1px solid var(--border);
}

.advanced-control-card .card-header {
    background: linear-gradient(135deg, #0c1530, #162447);
    border-bottom: 1px solid var(--border);
    color: var(--txt);
}

.advanced-control-card .card-title { color: var(--blue); }

.device-info {
    font-size: 11px;
    color: var(--txt3);
    margin-top: 4px;
}

/* 详细数据表格 */
#detail-data-table { font-size: 13px; }

#detail-data-table th {
    font-weight: 500;
    color: var(--txt2);
    background: var(--bg2);
    padding: 8px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    text-align: center;
    vertical-align: middle;
}

#detail-data-table td {
    padding: 8px;
    border-bottom: 1px solid rgba(26, 58, 110, 0.3);
    vertical-align: middle;
    text-align: center;
}

#detail-data-table tbody tr:hover { background: var(--card-h); }

/* 命令类型标签 */
.command-type {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 500;
    text-align: center;
    min-width: 40px;
}
.command-type-1 { background: rgba(0, 230, 118, 0.15); color: var(--green); }
.command-type-2 { background: rgba(255, 215, 64, 0.15); color: var(--yellow); }
.command-type-3 { background: rgba(0, 200, 255, 0.15); color: var(--blue); }
.command-type-4 { background: rgba(58, 106, 144, 0.2); color: var(--txt3); }

.register-address {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 11px;
    color: var(--txt);
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 3px;
    display: inline-block;
}

.param-name {
    font-weight: 500;
    color: var(--txt);
    font-size: 12px;
    line-height: 1.4;
}

.data-value-cell {
    text-align: right;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 12px;
    font-weight: 500;
    color: var(--txt);
}

/* switch/enum 显示标签 */
.value-label {
    display: inline-block;
    padding: 1px 8px;
    border-radius: 3px;
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    background: rgba(58, 106, 144, 0.15);
    color: var(--txt2);
}
.value-label-0 { background: rgba(58, 106, 144, 0.15); color: var(--txt3); }
.value-label-1 { background: rgba(0, 230, 118, 0.15); color: var(--green); }
.value-label-2 { background: rgba(0, 200, 255, 0.15); color: var(--blue); }
.value-label-3 { background: rgba(255, 215, 64, 0.15); color: var(--yellow); }

.data-unit-cell { color: var(--txt3); font-size: 11px; text-align: center; }
.update-time-cell { color: var(--txt3); font-size: 11px; white-space: nowrap; }

.detail-data-row { transition: background-color 0.2s; }
.detail-data-row:hover { background: var(--card-h) !important; }

.register-info { font-family: 'Consolas', 'Monaco', 'Courier New', monospace; font-size: 11px; }

.data-type-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}
.data-type-badge.uint16 { background: rgba(0, 230, 118, 0.1); color: var(--green); border: 1px solid rgba(0, 230, 118, 0.2); }
.data-type-badge.int16 { background: rgba(0, 200, 255, 0.1); color: var(--blue); border: 1px solid rgba(0, 200, 255, 0.2); }

.data-value-display {
    font-weight: 500;
    font-size: 13px;
    color: var(--txt);
}

/* 高级控制 */
.advanced-controls {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.adv-empty-tip {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 40px 20px;
    color: var(--txt3);
    font-size: 13px;
}

.adv-empty-tip i {
    font-size: 28px;
    opacity: 0.4;
}

.adv-control-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.control-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--txt);
    flex: 1;
}

.current-value-display {
    font-size: 12px;
    color: var(--txt);
    background: var(--bg);
    padding: 5px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    min-width: 60px;
    text-align: center;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.current-value-display:empty::before {
    content: 'N/A';
    color: var(--txt3);
    font-weight: normal;
}

.adv-control-body { width: 100%; }

.input-group {
    display: flex;
    width: 100%;
}

.adv-control-input {
    flex: 1;
    border: 1px solid var(--border);
    border-right: none;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    padding: 8px 12px;
    font-size: 13px;
    background: var(--card);
    color: var(--txt);
    outline: none;
    transition: all 0.2s;
}

.adv-control-input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.1);
    z-index: 2;
}

.input-group-text {
    background: var(--bg);
    border: 1px solid var(--border);
    border-left: none;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--txt2);
    font-size: 13px;
    padding: 8px 12px;
    min-width: 60px;
    text-align: center;
}

.form-select.adv-control-input {
    width: 100%;
    border-radius: var(--radius-sm);
    border-right: 1px solid var(--border);
    padding: 8px 12px;
    font-size: 13px;
    color: var(--txt);
    background: var(--card);
    cursor: pointer;
}

.form-select.adv-control-input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(0, 200, 255, 0.1);
}

.adv-control-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 4px;
}

.btn-set-param {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 20px;
    background: linear-gradient(135deg, #0080ff, var(--blue));
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
}

.btn-set-param:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 200, 255, 0.3);
}

.btn-set-param:active:not(:disabled) { transform: translateY(0); }

.btn-set-param:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--txt3);
}

/* ============================================
   历史数据页面
   ============================================ */
#combined-temp-table {
    font-size: 12px;
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--border);
}

#combined-temp-table th {
    background: var(--bg2);
    font-weight: 500;
    color: var(--txt2);
    padding: 8px;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
    text-align: center;
    font-size: 11px;
}

#combined-temp-table th:last-child { border-right: none; }

#combined-temp-table td {
    padding: 7px 8px;
    border-bottom: 1px solid rgba(26, 58, 110, 0.3);
    border-right: 1px solid rgba(26, 58, 110, 0.3);
    text-align: center;
    vertical-align: middle;
    font-size: 11px;
    color: var(--txt);
}

#combined-temp-table td:last-child { border-right: none; }
#combined-temp-table tbody tr:hover { background: var(--card-h); }

.serial-number { color: var(--txt2); font-weight: 500; }

.temp-value {
    font-weight: 500;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 12px;
    color: var(--txt);
}

.data-quality {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 500;
    min-width: 50px;
}
.data-quality.normal { background: rgba(0, 230, 118, 0.1); color: var(--green); border: 1px solid rgba(0, 230, 118, 0.2); }
.data-quality.abnormal { background: rgba(255, 82, 82, 0.1); color: var(--red); border: 1px solid rgba(255, 82, 82, 0.2); }

.timestamp {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 11px;
    color: var(--txt3);
}

.device-name { color: var(--txt); font-size: 11px; }

/* ============================================
   加载遮罩和Toast
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(6, 13, 31, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(8px);
}

.loading-content {
    text-align: center;
    max-width: 300px;
    padding: 2rem;
}

.loading-content .spinner {
    width: 3rem;
    height: 3rem;
    border: 3px solid var(--border);
    border-top-color: var(--blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

.loading-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--txt2);
    margin: 0;
}

.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 24rem;
}

.toast {
    background: var(--bg2);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
    padding: 0.9rem 1.1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    border-left: 3px solid var(--blue);
    animation: toastSlideIn var(--transition-fast) forwards;
    transform-origin: top right;
}

@keyframes toastSlideIn {
    from { opacity: 0; transform: translateX(100%) scale(0.9); }
    to { opacity: 1; transform: translateX(0) scale(1); }
}

.toast.success { border-left-color: var(--green); }
.toast.error { border-left-color: var(--red); }
.toast.warning { border-left-color: var(--yellow); }

.toast-icon {
    font-size: 1.125rem;
    flex-shrink: 0;
    margin-top: 0.125rem;
}
.toast.success .toast-icon { color: var(--green); }
.toast.error .toast-icon { color: var(--red); }
.toast.warning .toast-icon { color: var(--yellow); }

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

.toast-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--txt);
    margin-bottom: 0.125rem;
    line-height: 1.4;
}

.toast-message {
    font-size: 0.8rem;
    color: var(--txt2);
    line-height: 1.4;
}

.toast-close {
    background: transparent;
    border: none;
    color: var(--txt3);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.125rem;
    margin: -0.125rem -0.125rem 0 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.toast-close:hover {
    color: var(--txt);
    background: var(--card);
}

/* ============================================
   报警/故障页面额外样式
   ============================================ */
.btn-group {
    display: flex;
    gap: 0;
}

.btn-group .btn {
    border-radius: 0;
    border: 1px solid var(--border);
}

.btn-group .btn:first-child {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.btn-group .btn:last-child {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.btn-group .btn.active {
    background: var(--card-h);
    color: var(--blue);
    border-color: var(--border-h);
}

/* 输入框 date/time 暗色适配 */
input[type="date"],
input[type="datetime-local"],
input[type="time"] {
    color-scheme: dark;
}

/* 设备选择器样式 */
#detail-device-select {
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--txt);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 12px;
    cursor: pointer;
    outline: none;
}
#detail-device-select:focus {
    border-color: var(--blue);
}

/* 报警表格额外样式 */
#alarm-table th,
#fault-table th {
    font-size: 12px;
}

/* ============================================
   响应式微调
   ============================================ */
@media (max-width: 768px) {
    .charts-row {
        flex-direction: column;
        height: auto;
    }
    .chart-container:first-child,
    .chart-container:last-child {
        flex: none;
        height: 260px;
    }
    .filter-row { flex-direction: column; align-items: stretch; }
    .filter-actions { justify-content: flex-end; }
    .modal-container { max-width: 100%; margin: 0.5rem; }
}

/* 移除与SCADA重复的样式定义，防止冲突 */
.hdr-right .lang-switcher select { /* scada page lang selector */ }